fix(hook): preserve WinSock connect errors

Milestone B: move FIFA17 ProtoSSL certificate compatibility into version.dll so
the client-local contract is openfut.cfg + LSX + version.dll with no external
/proc-writing patcher. The proven external openfut-autopatch remains the oracle
and is NOT removed; this reaches behavioral parity for the fail-closed patches.

Patch set (ASLR-relocated at runtime; fail-closed byte-verified; one-shot):
- FIFA17.exe ProtoSSL cert gates (REQUIRED_FOR_TLS), preferred base 0x140000000:
    GATE1 rva 0x6132548  0f85 76010000 (JNZ) -> 90*6 (NOP)
    GATE2 rva 0x61361b0  48 89 5c (prologue) -> 31 c0 c3 (xor eax,eax; ret)
  Applied as a pair only when BOTH read their known original, exactly like the
  external patcher's cert_pass; polled until the STEAMPUNKS packer unpacks them.
- CardsDLL empty-My-Packs store crash-guard (REQUIRED_FOR_STORE_TLS, bug 6c),
  preferred base 0x180000000: rva 0x14858  75 0f (JNZ) -> 7f 0f (JG). Applied once
  CardsDLL maps (module-late).

Deliberately NOT ported: the external patcher's 8 unconditional STORE_PATCHES.
They carry no recovered original bytes (cannot be fail-closed) and are re-applied
every tick (would require the constant-rewrite loop this milestone forbids); the
external source records no rationale for them. Documented in the Vault ADR.

Architecture:
- patch_mem.rs: generic fail-closed primitive over a Mem trait — classify
  (ORIGINAL/ALREADY_PATCHED/MISMATCH), apply_checked (read->classify->write only on
  ORIGINAL->reread verify), VirtualQuery-guarded read + VirtualProtect/Flush write
  (WinMem). Trait abstraction makes every outcome host-testable without FIFA.
- fifa17_tls.rs: FIFA17-specific patch table + bounded poll worker (250ms, 15min
  cap, no busy-spin) started from fifa17::install() after the network redirect.
  Never patches an absolute address; never blind-writes on mismatch; a write/verify
  failure is reported, never pretended.

Phase 11: removed the season_trace CACHE_PACKNAMES_FAILED->SUCCESS force-success
bypass (a staging-only behavior-changer that was armed unconditionally in the
candidate); season_trace is now genuinely read-only passive tracing. sbc_dispatch
and store_entry remain the intended REPAIR_PROMOTED fixes.

Tests: 39 hook tests (26 baseline + 13 new: classify states, apply/idempotence,
no-blind-write on mismatch, unreadable-module wait, write-failure reporting, RVA/
live-addr relocation across bases, cert-gate pairing, patch-table integrity).
clippy --features fifa17 -D warnings clean; fmt clean; x86_64-pc-windows-gnu
cross-build. No network-config authority added (routing stays Milestone A).

Runtime validation (x64dbg site check + Windows/Linux retail) still outstanding.

Cargo.lock

@@ -2279,6 +2279,10 @@ version = "1.21.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9f7c3e4beb33f85d45ae3e3a1792185706c8e16d043238c593331cc7cd313b50"
 
+[[package]]
+name = "openfut-common"
+version = "0.1.0"
+
 [[package]]
 name = "openfut-launcher"
 version = "0.1.0"
@@ -2288,6 +2292,7 @@ dependencies = [
  "dirs",
  "eframe",
  "egui",
+ "openfut-common",
  "serde",
  "serde_json",
  "tokio",

Cargo.toml

@@ -12,3 +12,7 @@ serde = { version = "1", features = ["derive"] }
 serde_json = "1"
 dirs = "5"
 chrono = { version = "0.4", features = ["serde"] }
+openfut-common = { path = "openfut-common" }
+# parking_lot over std::sync: every lock here is taken and used immediately, so
+# the poisoning unwrap at each call site is pure noise (project rule).
+parking_lot = "0.12"

openfut-common/Cargo.lock

@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "openfut-common"
+version = "0.1.0"

openfut-common/Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "openfut-common"
+version = "0.1.0"
+edition = "2021"
+description = "Shared OpenFUT server-destination configuration, port mapping, and address conversion used by both the launcher and openfut_hook.dll. Pure std, no dependencies, so it stays small inside the injected DLL and is unit-testable on any host."
+
+[lib]
+# Rlib only. Deliberately dependency-free so linking it into openfut_hook.dll
+# (a cdylib) adds no runtime weight and no cross-platform risk.
+
+[dependencies]

openfut-common/src/lib.rs

@@ -0,0 +1,568 @@
+//! Shared OpenFUT destination configuration.
+//!
+//! This crate is the **single source of truth** for where FIFA's intercepted
+//! EA traffic is redirected. It is consumed by both the launcher (which writes
+//! `openfut.cfg`) and `openfut_hook.dll` (which reads it and rewrites sockets).
+//!
+//! Design rules enforced here:
+//!   * There is exactly ONE configured OpenFUT destination (host + ports).
+//!   * Missing/invalid configuration is a hard error — it NEVER silently
+//!     degrades to `127.0.0.1`/localhost. Loopback is only ever used if the
+//!     user explicitly configures it.
+//!   * The address/port -> WinSock representation helpers live here and are
+//!     unit-tested on the host, so the byte-order logic the socket hooks depend
+//!     on is verified without needing WinSock or FIFA.
+//!
+//! ## EA source ports vs OpenFUT destination ports
+//!
+//! FIFA connects to a handful of EA endpoints on fixed ports. Those source
+//! ports are *signatures* used to recognise traffic that must be intercepted —
+//! they are hardcoded on purpose (see [`ea_ports`]). Each recognised EA source
+//! port maps to an OpenFUT *destination* port, which comes from configuration
+//! ([`OpenFutPorts`]). Source port = fixed EA signature; destination port =
+//! configurable OpenFUT service.
+
+use std::fmt;
+use std::net::{Ipv4Addr, ToSocketAddrs};
+use std::str::FromStr;
+
+/// EA source ports FIFA dials. These are fixed EA endpoint signatures used to
+/// recognise traffic for interception — NOT OpenFUT configuration. Do not make
+/// these configurable; changing them would stop us recognising EA traffic.
+pub mod ea_ports {
+    /// EA HTTPS (UTAS / EAWebKit / footapi) — the game dials EA hosts on 443.
+    pub const HTTPS: u16 = 443;
+    /// EA Blaze redirector (gosredirector) source port.
+    pub const BLAZE_REDIRECTOR: u16 = 10041;
+    /// FIFA 17's `winter15.gosredirector.ea.com` endpoint source port. This is
+    /// an observed, fixed vendor-port signature; it maps to the same configured
+    /// OpenFUT redirector destination as the newer 10041 endpoint.
+    pub const FIFA17_BLAZE_REDIRECTOR: u16 = 42230;
+    /// EA Blaze main server source port.
+    pub const BLAZE_MAIN: u16 = 42127;
+}
+
+/// Default OpenFUT *destination* ports, derived from the current OpenFUT server
+/// implementation (bridge listens on 8443 for HTTPS; Blaze services keep their
+/// native ports). The launcher may pre-populate these; the user may change them
+/// without recompiling anything.
+pub mod default_ports {
+    /// OpenFUT bridge HTTPS listener (EA :443 is redirected here).
+    pub const HTTPS: u16 = 8443;
+    /// OpenFUT FIFA 17 Blaze redirector listener.
+    pub const BLAZE_REDIRECTOR: u16 = 42127;
+    /// OpenFUT FIFA 17 Blaze main listener.
+    pub const BLAZE_MAIN: u16 = 42130;
+}
+
+/// OpenFUT destination ports. Each field is where an intercepted EA source port
+/// is redirected. Not collapsed into one port: OpenFUT runs distinct services
+/// (bridge HTTPS + two Blaze listeners) that FIFA reaches on distinct ports.
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub struct OpenFutPorts {
+    /// Destination for EA :443 traffic (bridge HTTPS).
+    pub https: u16,
+    /// Destination for EA :10041 traffic (Blaze redirector).
+    pub blaze_redirector: u16,
+    /// Destination for EA :42127 traffic (Blaze main).
+    pub blaze_main: u16,
+}
+
+impl Default for OpenFutPorts {
+    fn default() -> Self {
+        Self {
+            https: default_ports::HTTPS,
+            blaze_redirector: default_ports::BLAZE_REDIRECTOR,
+            blaze_main: default_ports::BLAZE_MAIN,
+        }
+    }
+}
+
+impl OpenFutPorts {
+    /// Map a recognised EA *source* port to its OpenFUT *destination* port.
+    /// Returns `None` for ports we don't intercept (the socket hook then leaves
+    /// the connection untouched).
+    pub fn map_source_port(&self, ea_source_port: u16) -> Option<u16> {
+        match ea_source_port {
+            ea_ports::HTTPS => Some(self.https),
+            ea_ports::BLAZE_REDIRECTOR | ea_ports::FIFA17_BLAZE_REDIRECTOR => {
+                Some(self.blaze_redirector)
+            }
+            ea_ports::BLAZE_MAIN => Some(self.blaze_main),
+            _ => None,
+        }
+    }
+}
+
+/// The parsed OpenFUT server configuration: what host to redirect EA traffic to
+/// and which destination ports to use. `host` may be an IPv4 literal or a
+/// hostname; resolution to a concrete [`Ipv4Addr`] happens in [`Self::resolve`].
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct ServerConfig {
+    /// User-configured OpenFUT server host (IPv4 literal or hostname). Never
+    /// defaulted to loopback — an empty host is a [`ConfigError::ServerMissing`].
+    pub host: String,
+    pub ports: OpenFutPorts,
+}
+
+/// A [`ServerConfig`] whose host has been resolved to a concrete IPv4 address.
+/// This is what the socket hooks consume — all three interception layers share
+/// exactly this resolved destination.
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub struct ResolvedServer {
+    /// The concrete IPv4 the EA connection's destination is rewritten to.
+    pub redirect_ip: Ipv4Addr,
+    pub ports: OpenFutPorts,
+}
+
+/// Where one matched EA connection is rewritten to, in the exact WinSock
+/// on-the-wire representation the socket hooks need. Produced by
+/// [`ResolvedServer::redirect_for_ea_port`] so the hook and the launcher's
+/// `openfut.cfg` share one decision by construction.
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub struct Redirect {
+    /// Rewritten IPv4 for `sockaddr_in.sin_addr` (network byte order in memory).
+    pub addr_nbo: u32,
+    /// Rewritten port for `sin_port` / `sin6_port` (network byte order).
+    pub port_nbo: u16,
+    /// The resolved server IPv4, for callers building an IPv6 v4-mapped address.
+    pub redirect_ip: Ipv4Addr,
+}
+
+impl ResolvedServer {
+    /// Decide the redirect for an outbound EA connection whose destination port
+    /// is `ea_port_nbo` (network byte order, as read straight from the sockaddr).
+    ///
+    /// Returns `None` when the port is not a recognised OpenFUT route — the hook
+    /// then leaves the connection untouched. The original destination IP is
+    /// intentionally ignored: matching is by the fixed EA source-port signature
+    /// ([`ea_ports`]), so a hardcoded EA IP (e.g. FIFA17's `159.153.51.20`
+    /// redirector) and a DNS-resolved one are treated identically and both land
+    /// on the configured server — no `/etc/hosts`, DNAT, or portproxy required.
+    pub fn redirect_for_ea_port(&self, ea_port_nbo: u16) -> Option<Redirect> {
+        let ea_port = u16::from_be(ea_port_nbo);
+        let dest_port = self.ports.map_source_port(ea_port)?;
+        Some(Redirect {
+            addr_nbo: sin_addr_from_ipv4(self.redirect_ip),
+            port_nbo: sin_port_nbo(dest_port),
+            redirect_ip: self.redirect_ip,
+        })
+    }
+}
+
+/// Errors loading/validating OpenFUT server configuration. Every one of these
+/// must BLOCK operation — none of them may fall back to loopback.
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub enum ConfigError {
+    /// No config file present (e.g. `openfut.cfg` missing).
+    ConfigMissing,
+    /// Config present but no server host set.
+    ServerMissing,
+    /// Host could not be parsed/resolved to an IPv4 address.
+    InvalidAddress(String),
+    /// A port value was not a valid `u16` / was zero.
+    InvalidPort(String),
+    /// Config bytes were structurally unparseable.
+    MalformedConfig(String),
+}
+
+impl fmt::Display for ConfigError {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            ConfigError::ConfigMissing => {
+                write!(f, "No OpenFUT server configured (config file missing)")
+            }
+            ConfigError::ServerMissing => write!(
+                f,
+                "No OpenFUT server configured. Enter the hostname or IP address of your OpenFUT server."
+            ),
+            ConfigError::InvalidAddress(a) => write!(f, "Invalid OpenFUT server address: {a}"),
+            ConfigError::InvalidPort(p) => write!(f, "Invalid OpenFUT port: {p}"),
+            ConfigError::MalformedConfig(m) => write!(f, "Malformed OpenFUT config: {m}"),
+        }
+    }
+}
+
+impl std::error::Error for ConfigError {}
+
+impl ServerConfig {
+    /// Parse `openfut.cfg` contents.
+    ///
+    /// Two accepted formats:
+    ///   * **Structured** (preferred), one `key=value` per line:
+    ///     ```text
+    ///     host=192.168.1.50
+    ///     https_port=8443
+    ///     blaze_redirector_port=10041
+    ///     blaze_main_port=42127
+    ///     ```
+    ///     `host` is required; any omitted port uses its default.
+    ///   * **Legacy**, a single bare line containing just the host
+    ///     (IPv4 or hostname). Ports default. This keeps old deployments working.
+    ///
+    /// An empty/whitespace-only body is [`ConfigError::ServerMissing`], NOT a
+    /// silent loopback fallback.
+    pub fn parse(contents: &str) -> Result<Self, ConfigError> {
+        let trimmed = contents.trim();
+        if trimmed.is_empty() {
+            return Err(ConfigError::ServerMissing);
+        }
+
+        // Legacy single-token form: no '=' anywhere and a single line.
+        let has_kv = trimmed.lines().any(|l| l.contains('='));
+        if !has_kv {
+            let host = trimmed.trim();
+            if host.is_empty() {
+                return Err(ConfigError::ServerMissing);
+            }
+            return Ok(Self {
+                host: host.to_string(),
+                ports: OpenFutPorts::default(),
+            });
+        }
+
+        let mut host: Option<String> = None;
+        let mut ports = OpenFutPorts::default();
+
+        for (lineno, raw) in trimmed.lines().enumerate() {
+            let line = raw.trim();
+            if line.is_empty() || line.starts_with('#') {
+                continue;
+            }
+            let (key, value) = line.split_once('=').ok_or_else(|| {
+                ConfigError::MalformedConfig(format!("line {}: expected key=value", lineno + 1))
+            })?;
+            let key = key.trim();
+            let value = value.trim();
+            match key {
+                "host" | "server" | "redirect_ip" => {
+                    if value.is_empty() {
+                        return Err(ConfigError::ServerMissing);
+                    }
+                    host = Some(value.to_string());
+                }
+                "https_port" => ports.https = parse_port(value)?,
+                "blaze_redirector_port" => ports.blaze_redirector = parse_port(value)?,
+                "blaze_main_port" => ports.blaze_main = parse_port(value)?,
+                other => {
+                    return Err(ConfigError::MalformedConfig(format!(
+                        "line {}: unknown key '{other}'",
+                        lineno + 1
+                    )));
+                }
+            }
+        }
+
+        let host = host.ok_or(ConfigError::ServerMissing)?;
+        Ok(Self { host, ports })
+    }
+
+    /// Serialize to the structured `openfut.cfg` format.
+    pub fn to_cfg_string(&self) -> String {
+        format!(
+            "host={}\nhttps_port={}\nblaze_redirector_port={}\nblaze_main_port={}\n",
+            self.host, self.ports.https, self.ports.blaze_redirector, self.ports.blaze_main
+        )
+    }
+
+    /// Validate the host is a syntactically acceptable IPv4 literal or hostname.
+    /// Does NOT perform DNS (no network) — use [`Self::resolve`] for that.
+    pub fn validate(&self) -> Result<(), ConfigError> {
+        let host = self.host.trim();
+        if host.is_empty() {
+            return Err(ConfigError::ServerMissing);
+        }
+        if Ipv4Addr::from_str(host).is_ok() {
+            return Ok(());
+        }
+        if is_plausible_hostname(host) {
+            Ok(())
+        } else {
+            Err(ConfigError::InvalidAddress(host.to_string()))
+        }
+    }
+
+    /// Resolve the configured host to a concrete IPv4 destination.
+    ///
+    /// This is the single shared resolution path all hooks rely on: an IPv4
+    /// literal is used directly; a hostname is resolved via the platform
+    /// resolver ([`ToSocketAddrs`]). Only IPv4 results are used (WinSock
+    /// interception here is IPv4). Never falls back to loopback.
+    pub fn resolve(&self) -> Result<ResolvedServer, ConfigError> {
+        let host = self.host.trim();
+        if host.is_empty() {
+            return Err(ConfigError::ServerMissing);
+        }
+
+        // IPv4 literal: no DNS needed.
+        if let Ok(ip) = Ipv4Addr::from_str(host) {
+            return Ok(ResolvedServer {
+                redirect_ip: ip,
+                ports: self.ports,
+            });
+        }
+
+        // Hostname: resolve via the platform resolver. Port is irrelevant to
+        // the lookup; we only need an address. Take the first IPv4 answer.
+        let ip = (host, 0u16)
+            .to_socket_addrs()
+            .map_err(|e| ConfigError::InvalidAddress(format!("{host}: {e}")))?
+            .find_map(|sa| match sa.ip() {
+                std::net::IpAddr::V4(v4) => Some(v4),
+                std::net::IpAddr::V6(_) => None,
+            })
+            .ok_or_else(|| ConfigError::InvalidAddress(format!("{host}: no IPv4 address found")))?;
+
+        Ok(ResolvedServer {
+            redirect_ip: ip,
+            ports: self.ports,
+        })
+    }
+}
+
+fn parse_port(value: &str) -> Result<u16, ConfigError> {
+    let n: u16 = value
+        .parse()
+        .map_err(|_| ConfigError::InvalidPort(value.to_string()))?;
+    if n == 0 {
+        return Err(ConfigError::InvalidPort(value.to_string()));
+    }
+    Ok(n)
+}
+
+/// Lenient hostname sanity check (RFC-1123-ish). Not a full validator — just
+/// enough to reject obvious garbage while accepting `.local`/`.home` names.
+fn is_plausible_hostname(host: &str) -> bool {
+    if host.is_empty() || host.len() > 253 {
+        return false;
+    }
+    host.split('.').all(|label| {
+        !label.is_empty()
+            && label.len() <= 63
+            && label.chars().all(|c| c.is_ascii_alphanumeric() || c == '-')
+            && !label.starts_with('-')
+            && !label.ends_with('-')
+    })
+}
+
+// ── WinSock representation helpers ───────────────────────────────────────────
+// These convert a resolved destination into the exact in-memory representation
+// WinSock's `sockaddr_in` expects. Kept here (not in the DLL) so the byte-order
+// contract the socket hooks depend on is unit-tested on the host.
+
+/// Value to store in `sockaddr_in.sin_addr.S_un.S_addr`.
+///
+/// WinSock stores the four IPv4 octets in network byte order in memory. Reading
+/// those bytes back as a native-endian `u32` (how the hook's `SockaddrIn.sin_addr`
+/// field is typed) is exactly `from_ne_bytes(octets)`. On little-endian x86_64
+/// this yields e.g. `127.0.0.1 -> 0x0100_007F`, matching the value the original
+/// hooks hardcoded — confirming the conversion is correct.
+pub fn sin_addr_from_ipv4(ip: Ipv4Addr) -> u32 {
+    u32::from_ne_bytes(ip.octets())
+}
+
+/// Value to store in `sockaddr_in.sin_port` — the port in network byte order.
+pub fn sin_port_nbo(port: u16) -> u16 {
+    port.to_be()
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn configured_ipv4_survives_parsing() {
+        let c = ServerConfig::parse("host=192.168.1.50\n").unwrap();
+        assert_eq!(c.host, "192.168.1.50");
+        assert_eq!(c.ports, OpenFutPorts::default());
+    }
+
+    #[test]
+    fn legacy_bare_host_line_parses() {
+        let c = ServerConfig::parse("10.0.0.7\n").unwrap();
+        assert_eq!(c.host, "10.0.0.7");
+        assert_eq!(c.ports, OpenFutPorts::default());
+    }
+
+    #[test]
+    fn missing_server_does_not_become_loopback() {
+        // Empty config is an explicit error, never 127.0.0.1.
+        assert_eq!(
+            ServerConfig::parse("").unwrap_err(),
+            ConfigError::ServerMissing
+        );
+        assert_eq!(
+            ServerConfig::parse("   \n\n").unwrap_err(),
+            ConfigError::ServerMissing
+        );
+        assert_eq!(
+            ServerConfig::parse("https_port=8443\n").unwrap_err(),
+            ConfigError::ServerMissing
+        );
+    }
+
+    #[test]
+    fn invalid_server_is_rejected() {
+        let c = ServerConfig {
+            host: "not a host!!".into(),
+            ports: OpenFutPorts::default(),
+        };
+        assert!(matches!(c.validate(), Err(ConfigError::InvalidAddress(_))));
+    }
+
+    #[test]
+    fn configured_port_survives_parsing() {
+        let c = ServerConfig::parse(
+            "host=srv.home\nhttps_port=9000\nblaze_redirector_port=11000\nblaze_main_port=42000\n",
+        )
+        .unwrap();
+        assert_eq!(c.ports.https, 9000);
+        assert_eq!(c.ports.blaze_redirector, 11000);
+        assert_eq!(c.ports.blaze_main, 42000);
+    }
+
+    #[test]
+    fn invalid_port_is_rejected() {
+        assert!(matches!(
+            ServerConfig::parse("host=x\nhttps_port=0\n"),
+            Err(ConfigError::InvalidPort(_))
+        ));
+        assert!(matches!(
+            ServerConfig::parse("host=x\nhttps_port=99999\n"),
+            Err(ConfigError::InvalidPort(_))
+        ));
+    }
+
+    #[test]
+    fn unknown_key_is_malformed() {
+        assert!(matches!(
+            ServerConfig::parse("host=x\nbogus=1\n"),
+            Err(ConfigError::MalformedConfig(_))
+        ));
+    }
+
+    #[test]
+    fn roundtrip_cfg_string() {
+        let c = ServerConfig {
+            host: "192.168.1.50".into(),
+            ports: OpenFutPorts {
+                https: 8443,
+                blaze_redirector: 10041,
+                blaze_main: 42127,
+            },
+        };
+        let s = c.to_cfg_string();
+        assert_eq!(ServerConfig::parse(&s).unwrap(), c);
+    }
+
+    #[test]
+    fn configured_ipv4_becomes_correct_sockaddr() {
+        // Resolve an IPv4 literal and confirm the sin_addr value.
+        let c = ServerConfig::parse("host=192.168.1.50\n").unwrap();
+        let r = c.resolve().unwrap();
+        assert_eq!(r.redirect_ip, Ipv4Addr::new(192, 168, 1, 50));
+        // sin_addr is the octets as a native-endian u32.
+        assert_eq!(
+            sin_addr_from_ipv4(r.redirect_ip),
+            u32::from_ne_bytes([192, 168, 1, 50])
+        );
+    }
+
+    #[test]
+    fn loopback_sockaddr_matches_legacy_constant() {
+        // Guards the byte-order contract: the old hooks hardcoded 0x0100_007F
+        // for 127.0.0.1. Our helper must reproduce it on this (LE) host.
+        assert_eq!(sin_addr_from_ipv4(Ipv4Addr::new(127, 0, 0, 1)), 0x0100_007F);
+    }
+
+    #[test]
+    fn sin_port_is_network_byte_order() {
+        // 443 -> 0xBB01, 42127 -> 0x8FA4 (matches the legacy hook constants).
+        assert_eq!(sin_port_nbo(443), 0xBB01);
+        assert_eq!(sin_port_nbo(42127), 0x8FA4);
+        assert_eq!(sin_port_nbo(10041), 0x3927);
+    }
+
+    #[test]
+    fn port_mapping_source_to_destination() {
+        let p = OpenFutPorts::default();
+        assert_eq!(p.map_source_port(ea_ports::HTTPS), Some(8443));
+        assert_eq!(p.map_source_port(ea_ports::BLAZE_REDIRECTOR), Some(42127));
+        assert_eq!(
+            p.map_source_port(ea_ports::FIFA17_BLAZE_REDIRECTOR),
+            Some(42127)
+        );
+        assert_eq!(p.map_source_port(ea_ports::BLAZE_MAIN), Some(42130));
+        assert_eq!(p.map_source_port(12345), None);
+    }
+
+    #[test]
+    fn resolve_literal_ipv4_no_dns() {
+        let c = ServerConfig::parse("host=127.0.0.1\n").unwrap();
+        let r = c.resolve().unwrap();
+        assert_eq!(r.redirect_ip, Ipv4Addr::LOCALHOST);
+    }
+
+    #[test]
+    fn resolve_empty_host_errors() {
+        let c = ServerConfig {
+            host: "   ".into(),
+            ports: OpenFutPorts::default(),
+        };
+        assert_eq!(c.resolve().unwrap_err(), ConfigError::ServerMissing);
+    }
+
+    #[test]
+    fn redirect_maps_every_fifa17_route_to_configured_server() {
+        // The canonical staging cfg. Ports come from the file, not constants.
+        let resolved = ServerConfig::parse(
+            "host=10.10.0.120\nhttps_port=8443\nblaze_redirector_port=42127\nblaze_main_port=42130\n",
+        )
+        .unwrap()
+        .resolve()
+        .unwrap();
+        let server = Ipv4Addr::new(10, 10, 0, 120);
+        // (EA source port [host order], expected OpenFUT dest port)
+        for (ea, dest) in [
+            (443u16, 8443u16),
+            (10041, 42127),
+            (42230, 42127),
+            (42127, 42130),
+        ] {
+            let r = resolved
+                .redirect_for_ea_port(ea.to_be())
+                .unwrap_or_else(|| panic!("EA port {ea} should be a route"));
+            assert_eq!(u16::from_be(r.port_nbo), dest, "EA {ea} -> dest");
+            assert_eq!(r.redirect_ip, server, "EA {ea} -> server ip");
+            assert_eq!(
+                r.addr_nbo,
+                sin_addr_from_ipv4(server),
+                "EA {ea} -> sin_addr"
+            );
+        }
+    }
+
+    #[test]
+    fn redirect_leaves_unknown_ports_untouched() {
+        let resolved = ServerConfig::parse("host=10.10.0.120\n")
+            .unwrap()
+            .resolve()
+            .unwrap();
+        assert!(resolved.redirect_for_ea_port(8080u16.to_be()).is_none());
+        assert!(resolved.redirect_for_ea_port(22u16.to_be()).is_none());
+        assert!(resolved.redirect_for_ea_port(443u16.to_be()).is_some());
+    }
+
+    #[test]
+    fn redirect_targets_configured_remote_host_not_loopback() {
+        let resolved = ServerConfig::parse("host=10.10.0.120\n")
+            .unwrap()
+            .resolve()
+            .unwrap();
+        // FIFA17 redirector (hardcoded EA IP 159.153.51.20:42230) must be rewritten
+        // to the configured REMOTE server, never 127.0.0.1.
+        let r = resolved.redirect_for_ea_port(42230u16.to_be()).unwrap();
+        assert_eq!(r.redirect_ip, Ipv4Addr::new(10, 10, 0, 120));
+        assert_ne!(r.redirect_ip, Ipv4Addr::LOCALHOST);
+    }
+}

openfut-hook/Cargo.lock

@@ -2,10 +2,15 @@
 # It is not intended for manual editing.
 version = 4
 
+[[package]]
+name = "openfut-common"
+version = "0.1.0"
+
 [[package]]
 name = "openfut-hook"
 version = "0.1.0"
 dependencies = [
+ "openfut-common",
  "windows-sys",
 ]
 

openfut-hook/Cargo.toml

@@ -1,3 +1,9 @@
+# Standalone workspace root: this Windows-only version.dll proxy is deliberately
+# NOT a member of the OpenFUT workspace (see that root's `exclude`) so its own
+# [profile.release] below actually applies. An empty [workspace] table stops Cargo
+# from walking up and re-attaching this crate to the parent workspace.
+[workspace]
+
 [package]
 name = "openfut-hook"
 version = "0.1.0"
@@ -7,17 +13,10 @@ edition = "2021"
 crate-type = ["cdylib"]
 
 [features]
-# Build with `--features capture_baseline` to DISABLE the LSX 3216→3217 redirect,
-# so FIFA's LSX goes to anadius's in-process server (for capturing anadius's real
-# responses). Default build keeps the redirect (LSX → our bridge).
-capture_baseline = []
-# Build with `--features probe` to install passive logging detours on FIFA's
-# in-process online-flow functions (GoOnline, GetInternetConnectedState, event
-# deserializers). Writes PROBE lines to C:\openfut_hook.log for RE. See probe.rs.
-probe = []
-# Build with `--features fifa17` for the FIFA 17 injection path. DllMain runs ONLY
-# the minimal FIFA-17-safe logic in fifa17.rs (prove injection, dump module map,
-# patch DirtySDK/ProtoSSL cert-verify) and skips ALL the FIFA-23-specific hooking.
+# Per-game selection: each supported game is a feature enabling its module. Exactly
+# one MUST be set (the crate emits a compile_error otherwise). Build the deployed
+# artifact with `--features fifa17`. Add a future game as a new feature here plus a
+# `mod <game>;` + dispatch arm in lib.rs — never by copying a retired game's code.
 fifa17 = []
 
 [dependencies]
@@ -33,6 +32,10 @@ windows-sys = { version = "0.59", features = [
     "Win32_System_Diagnostics_Debug",
     "Win32_System_Kernel",
 ] }
+# Single source of truth for the OpenFUT redirect config (openfut.cfg schema,
+# EA-port -> OpenFUT-port map, WinSock byte-order helpers). Shared with the
+# launcher so the hook and openfut.cfg agree by construction.
+openfut-common = { path = "../openfut-common" }
 
 [profile.release]
 opt-level = "s"

openfut-hook/build.rs

@@ -12,6 +12,6 @@ fn main() {
     {
         let definition =
             PathBuf::from(env::var_os("CARGO_MANIFEST_DIR").unwrap()).join("version.def");
-        println!("cargo:rustc-link-arg={}", definition.display());
+        println!("cargo:rustc-cdylib-link-arg={}", definition.display());
     }
 }

openfut-hook/src/config.rs

@@ -1,32 +0,0 @@
-/// Reads openfut.cfg from the same directory as this DLL.
-///
-/// The file contains a single line: the IP the hook should redirect EA
-/// hostnames to, e.g. "192.168.1.10" or "127.0.0.1".
-/// Falls back to 127.0.0.1 if the file is missing or unreadable.
-use windows_sys::Win32::System::LibraryLoader::GetModuleFileNameA;
-
-pub fn read_redirect_ip(module: windows_sys::Win32::Foundation::HMODULE) -> String {
-    if let Some(cfg_path) = config_path(module) {
-        if let Ok(content) = std::fs::read_to_string(&cfg_path) {
-            let ip = content.trim().to_string();
-            if !ip.is_empty() {
-                return ip;
-            }
-        }
-    }
-    "127.0.0.1".to_string()
-}
-
-fn config_path(module: windows_sys::Win32::Foundation::HMODULE) -> Option<std::path::PathBuf> {
-    let mut buf = vec![0u8; 512];
-    let len = unsafe { GetModuleFileNameA(module, buf.as_mut_ptr(), buf.len() as u32) };
-    if len == 0 {
-        return None;
-    }
-    let path = std::ffi::CStr::from_bytes_until_nul(&buf[..len as usize + 1])
-        .ok()?
-        .to_str()
-        .ok()?;
-    let dll_path = std::path::Path::new(path);
-    Some(dll_path.parent()?.join("openfut.cfg"))
-}

openfut-hook/src/connect_hook.rs

@@ -5,20 +5,6 @@ use std::sync::atomic::{AtomicUsize, Ordering};
 use std::sync::OnceLock;
 
 const AF_INET: u16 = 2;
-const PORT_HTTPS_NBO: u16 = 0xBB01; // 443   big-endian
-const PORT_BRIDGE_NBO: u16 = 0xFB20; // 8443  big-endian
-const PORT_BLAZE_REDIRECTOR_NBO: u16 = 0x3927; // 10041 big-endian
-const PORT_BLAZE_MAIN_NBO: u16 = 0x8FA4; // 42127 big-endian
-                                         // EA App LSX. anadius handles :3216 in-process before it reaches the host TCP
-                                         // stack (keyed on port 3216 specifically), so redirecting FIFA's LSX connect to a
-                                         // *different* host port (:3217) slips past that interception and lands on the
-                                         // native openfut-bridge LSX server. This is the load-bearing redirect that routes
-                                         // LSX to our bridge; without it FIFA uses anadius's in-process emu instead.
-#[allow(dead_code)] // unused when built with the `capture_baseline` feature
-const PORT_LSX_NBO: u16 = 0x900C; // 3216  big-endian (EA App LSX)
-#[allow(dead_code)]
-const PORT_LSX_TARGET_NBO: u16 = 0x910C; // 3217  big-endian (bridge LSX target)
-const ADDR_LOOPBACK_NBO: u32 = 0x0100_007F; // 127.0.0.1 big-endian
 
 #[repr(C)]
 struct SockaddrIn {
@@ -41,19 +27,37 @@ struct SockaddrIn6 {
     sin6_scope_id: u32,
 }
 
-/// IPv4-mapped IPv6 loopback: `::ffff:127.0.0.1`. An `AF_INET6` socket connecting to
-/// this sends real IPv4 packets to 127.0.0.1, so the connection lands on the bridge's
-/// existing IPv4 listener on :8443 — no separate IPv6 listener needed. The game's own
-/// EA dials already use v4-mapped addresses (`::ffff:x.x.x.x`), so its sockets are not
-/// `IPV6_V6ONLY` and will accept this target.
-const V4MAPPED_LOOPBACK: [u8; 16] = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xff, 0xff, 127, 0, 0, 1];
-
 // Address of ws2_32!connect (set at hook installation)
 static CONNECT_ADDR: AtomicUsize = AtomicUsize::new(0);
 
 // Original 14 bytes saved before we overwrite them
 static mut ORIGINAL_BYTES: [u8; 14] = [0u8; 14];
 
+/// Restores the real WinSock call's thread-local last error after detour repair,
+/// logging, and other instrumentation have run. Callers inspect this value after
+/// `SOCKET_ERROR`; leaking a logger/VirtualProtect error changes connect semantics.
+struct WsaLastErrorGuard(i32);
+
+impl WsaLastErrorGuard {
+    unsafe fn capture() -> Self {
+        use windows_sys::Win32::Networking::WinSock::WSAGetLastError;
+        Self(WSAGetLastError())
+    }
+
+    fn value(&self) -> i32 {
+        self.0
+    }
+}
+
+impl Drop for WsaLastErrorGuard {
+    fn drop(&mut self) {
+        unsafe {
+            use windows_sys::Win32::Networking::WinSock::WSASetLastError;
+            WSASetLastError(self.0);
+        }
+    }
+}
+
 // For WSAConnect IAT fallback
 type WsaConnectFn = unsafe extern "system" fn(
     s: usize,
@@ -89,82 +93,82 @@ unsafe fn restore_original(target: *mut u8) {
     VirtualProtect(target as _, 14, old, &mut old);
 }
 
-/// If `name` is an EA-relevant connect target, return a rewritten sockaddr pointing at
-/// the local bridge (plus its byte length). Handles BOTH `AF_INET` and `AF_INET6`: the
-/// game's Blaze/DirtySDK stack dials EA over IPv6 (v4-mapped) on :443, and the old
-/// IPv4-only path let those slip straight past us to the real (dead) servers.
-///
-/// The returned buffer is 28 bytes (enough for a `sockaddr_in6`); the second value is
-/// how many of those bytes are meaningful (16 for v4, 28 for v6). `pub(crate)` so the
-/// ConnectEx path can share this one implementation.
+/// The armed redirect target, resolved once from `openfut.cfg` via `openfut-common`.
+/// When set, `redirect_if_ea` rewrites matched EA connections to this configured
+/// server; when unset, matched connections are left untouched (no redirect).
+static REDIRECT: OnceLock<openfut_common::ResolvedServer> = OnceLock::new();
+
+/// Arm the config-driven redirect (FIFA17). Idempotent: the first call wins.
+pub fn set_redirect(server: openfut_common::ResolvedServer) {
+    let _ = REDIRECT.set(server);
+}
+
+/// If `name` is a matched EA connect target, return a rewritten sockaddr pointing
+/// at the configured OpenFUT server (plus its meaningful byte length: 16 for v4,
+/// 28 for v6). The target is armed once from `openfut.cfg` via `set_redirect`;
+/// when unset — or when the port is not a known EA route — the connection is left
+/// untouched. Shared by the connect / WSAConnect / ConnectEx detours.
 pub(crate) unsafe fn redirect_if_ea(name: *const u8, namelen: i32) -> Option<([u8; 28], i32)> {
     if namelen < 8 || name.is_null() {
         return None;
     }
-    // The first u16 of any sockaddr is the address family.
+    redirect_configured(REDIRECT.get()?, name, namelen)
+}
+
+/// FIFA17 config-driven rewrite. Destination host+port come from `openfut.cfg`
+/// through `openfut-common`, so the hook and the launcher agree by construction.
+/// Matching is by EA source-port signature only (see `openfut_common::ea_ports`),
+/// so a hardcoded EA IP (e.g. the `159.153.51.20:42230` redirector) and a
+/// DNS-resolved one both land on the configured — possibly remote — server. An
+/// unrecognised port returns `None` (connection left untouched). Never corrupts
+/// the sockaddr: it only writes into a fresh 28-byte buffer.
+unsafe fn redirect_configured(
+    server: &openfut_common::ResolvedServer,
+    name: *const u8,
+    namelen: i32,
+) -> Option<([u8; 28], i32)> {
     let family = *(name as *const u16);
     let mut buf = [0u8; 28];
-
     match family {
         AF_INET => {
-            // SAFE: family is AF_INET and namelen >= 8 == the sockaddr_in fields we read.
             let sa = &*(name as *const SockaddrIn);
-            let new_port_nbo = match sa.sin_port {
-                PORT_HTTPS_NBO => PORT_BRIDGE_NBO,
-                #[cfg(not(feature = "capture_baseline"))]
-                PORT_LSX_NBO => PORT_LSX_TARGET_NBO,
-                PORT_BLAZE_REDIRECTOR_NBO => PORT_BLAZE_REDIRECTOR_NBO,
-                PORT_BLAZE_MAIN_NBO => PORT_BLAZE_MAIN_NBO,
-                _ => return None,
-            };
-            // sin_addr is network order; to_le_bytes gives memory order = the dotted
-            // quad, so b[0].b[1].b[2].b[3] is correct (the old code printed it reversed).
-            let o = sa.sin_addr.to_le_bytes();
+            let redir = server.redirect_for_ea_port(sa.sin_port)?;
             crate::write_log(&format!(
-                "connect_hook: v4 {}.{}.{}.{}:{} → 127.0.0.1:{}\n",
-                o[0],
-                o[1],
-                o[2],
-                o[3],
+                "connect_hook: v4 :{} → {}:{}\n",
                 u16::from_be(sa.sin_port),
-                u16::from_be(new_port_nbo)
+                redir.redirect_ip,
+                u16::from_be(redir.port_nbo)
             ));
-            // SAFE: buf is 28 bytes, larger than the 16-byte sockaddr_in we write.
             let out = &mut *(buf.as_mut_ptr() as *mut SockaddrIn);
             out.sin_family = AF_INET;
-            out.sin_port = new_port_nbo;
-            out.sin_addr = ADDR_LOOPBACK_NBO;
+            out.sin_port = redir.port_nbo;
+            out.sin_addr = redir.addr_nbo;
             Some((buf, 16))
         }
         AF_INET6 => {
             if namelen < 28 {
                 return None;
             }
-            // SAFE: family is AF_INET6 and namelen >= 28 == sizeof(sockaddr_in6).
             let sa6 = &*(name as *const SockaddrIn6);
-            // LSX is IPv4-only (anadius keys on it), so it is intentionally omitted here.
-            let new_port_nbo = match sa6.sin6_port {
-                PORT_HTTPS_NBO => PORT_BRIDGE_NBO,
-                PORT_BLAZE_REDIRECTOR_NBO => PORT_BLAZE_REDIRECTOR_NBO,
-                PORT_BLAZE_MAIN_NBO => PORT_BLAZE_MAIN_NBO,
-                _ => return None,
-            };
-            let a = sa6.sin6_addr;
+            let redir = server.redirect_for_ea_port(sa6.sin6_port)?;
+            // ::ffff:<redirect_ip> — a v4-mapped v6 target so a v6 socket sends
+            // real IPv4 packets to the configured server.
+            let o = redir.redirect_ip.octets();
+            let mut v4mapped = [0u8; 16];
+            v4mapped[10] = 0xff;
+            v4mapped[11] = 0xff;
+            v4mapped[12..16].copy_from_slice(&o);
             crate::write_log(&format!(
-                "connect_hook: v6 [{:02x}{:02x}:..:{:02x}{:02x}]:{} → ::ffff:127.0.0.1:{}\n",
-                a[0],
-                a[1],
-                a[14],
-                a[15],
+                "connect_hook: v6 :{} → ::ffff:{}:{}\n",
                 u16::from_be(sa6.sin6_port),
-                u16::from_be(new_port_nbo)
+                redir.redirect_ip,
+                u16::from_be(redir.port_nbo)
             ));
-            // SAFE: buf is exactly 28 bytes == sizeof(sockaddr_in6).
             let out = &mut *(buf.as_mut_ptr() as *mut SockaddrIn6);
             out.sin6_family = AF_INET6;
-            out.sin6_port = new_port_nbo;
+            out.sin6_port = redir.port_nbo;
             out.sin6_flowinfo = 0;
-            out.sin6_addr = V4MAPPED_LOOPBACK;
+            out.sin6_addr = v4mapped;
             out.sin6_scope_id = 0;
             Some((buf, 28))
         }
@@ -175,9 +179,6 @@ pub(crate) unsafe fn redirect_if_ea(name: *const u8, namelen: i32) -> Option<([u
 pub unsafe extern "system" fn hooked_connect(s: usize, name: *const u8, namelen: i32) -> i32 {
     let addr = CONNECT_ADDR.load(Ordering::Relaxed) as *mut u8;
 
-    // Milestone-0 transport watch (self-gates on OPENFUT_TRANSPORT_WATCH).
-    crate::transport_watch::note_connect("connect", name, namelen, s);
-
     // Log every call so we can confirm the hook fires at all
     if namelen >= 8 {
         let sa = &*(name as *const SockaddrIn);
@@ -191,7 +192,7 @@ pub unsafe extern "system" fn hooked_connect(s: usize, name: *const u8, namelen:
                 let mut len: i32 = 4;
                 getsockopt(
                     s,
-                    SOL_SOCKET as i32,
+                    SOL_SOCKET,
                     SO_TYPE,
                     &mut ty as *mut i32 as *mut u8,
                     &mut len,
@@ -215,6 +216,8 @@ pub unsafe extern "system" fn hooked_connect(s: usize, name: *const u8, namelen:
                 core::mem::transmute(addr);
             f(s, buf.as_ptr(), len)
         };
+        // Named binding held until `return r`: its Drop restores the WSA error after `write_hook`.
+        let _last_error = WsaLastErrorGuard::capture();
         write_hook(addr, hooked_connect as *const () as u64);
         return r;
     } else {
@@ -226,17 +229,15 @@ pub unsafe extern "system" fn hooked_connect(s: usize, name: *const u8, namelen:
         let f: unsafe extern "system" fn(usize, *const u8, i32) -> i32 = core::mem::transmute(addr);
         f(s, call_name, call_len)
     };
+    let last_error = WsaLastErrorGuard::capture();
     write_hook(addr, hooked_connect as *const () as u64);
     if namelen >= 8 {
         let sa = &*(call_name as *const SockaddrIn);
         if sa.sin_family == AF_INET {
-            let err = if r != 0 {
-                use windows_sys::Win32::Networking::WinSock::WSAGetLastError;
-                WSAGetLastError()
-            } else {
-                0
-            };
-            crate::write_log(&format!("connect_hook: result={r} wsa_err={err}\n"));
+            let logged_error = if r != 0 { last_error.value() } else { 0 };
+            crate::write_log(&format!(
+                "connect_hook: result={r} wsa_err={logged_error}\n"
+            ));
         }
     }
     r
@@ -251,8 +252,6 @@ pub unsafe extern "system" fn hooked_wsa_connect(
     sqos: *const (),
     gqos: *const (),
 ) -> i32 {
-    // Milestone-0 transport watch (self-gates on OPENFUT_TRANSPORT_WATCH).
-    crate::transport_watch::note_connect("WSAConnect", name, namelen, s);
     let real = REAL_WSA.get().copied().unwrap();
     if let Some((buf, len)) = redirect_if_ea(name, namelen) {
         real(s, buf.as_ptr(), len, caller, callee, sqos, gqos)
@@ -265,11 +264,11 @@ pub unsafe extern "system" fn hooked_wsa_connect(
 pub unsafe fn install_inline_connect_hook() -> bool {
     use windows_sys::Win32::System::LibraryLoader::{GetModuleHandleA, GetProcAddress};
 
-    let ws2 = GetModuleHandleA(b"ws2_32.dll\0".as_ptr());
+    let ws2 = GetModuleHandleA(c"ws2_32.dll".as_ptr().cast());
     if ws2.is_null() {
         return false;
     }
-    let connect_fn = match GetProcAddress(ws2, b"connect\0".as_ptr()) {
+    let connect_fn = match GetProcAddress(ws2, c"connect".as_ptr().cast()) {
         Some(f) => f as *mut u8,
         None => return false,
     };
@@ -286,3 +285,24 @@ pub unsafe fn install_inline_connect_hook() -> bool {
     write_hook(connect_fn, hooked_connect as *const () as u64);
     true
 }
+
+#[cfg(test)]
+mod tests {
+    use super::WsaLastErrorGuard;
+    use windows_sys::Win32::Networking::WinSock::{
+        WSAGetLastError, WSASetLastError, WSAEWOULDBLOCK,
+    };
+
+    #[test]
+    fn restores_winsock_last_error_after_instrumentation() {
+        unsafe {
+            WSASetLastError(WSAEWOULDBLOCK);
+            {
+                let guard = WsaLastErrorGuard::capture();
+                assert_eq!(guard.value(), WSAEWOULDBLOCK);
+                WSASetLastError(0);
+            }
+            assert_eq!(WSAGetLastError(), WSAEWOULDBLOCK);
+        }
+    }
+}

openfut-hook/src/connectex_hook.rs

@@ -77,10 +77,6 @@ unsafe extern "system" fn hooked_connectex(
     overlapped: *mut c_void,
 ) -> i32 {
     let real_fn: ConnectExFn = core::mem::transmute(REAL_CONNECTEX.load(Ordering::Relaxed));
-
-    // Milestone-0 transport watch (self-gates on OPENFUT_TRANSPORT_WATCH).
-    crate::transport_watch::note_connect("ConnectEx", name, namelen, s);
-
     // Share the one redirect implementation (v4 + v6) with connect_hook, so ConnectEx
     // dials get the same IPv6 handling as plain connect().
     if let Some((buf, len)) = crate::connect_hook::redirect_if_ea(name, namelen) {
@@ -152,11 +148,11 @@ pub unsafe extern "system" fn hooked_wsaioctl(
 
 pub unsafe fn install_wsaioctl_hook() -> bool {
     use windows_sys::Win32::System::LibraryLoader::{GetModuleHandleA, GetProcAddress};
-    let ws2 = GetModuleHandleA(b"ws2_32.dll\0".as_ptr());
+    let ws2 = GetModuleHandleA(c"ws2_32.dll".as_ptr().cast());
     if ws2.is_null() {
         return false;
     }
-    let fn_ptr = match GetProcAddress(ws2, b"WSAIoctl\0".as_ptr()) {
+    let fn_ptr = match GetProcAddress(ws2, c"WSAIoctl".as_ptr().cast()) {
         Some(f) => f as *mut u8,
         None => return false,
     };

openfut-hook/src/dial_notification.rs

@@ -1,183 +0,0 @@
-//! Synthetic "notification" struct for the direct-call dial trigger.
-//!
-//! STATIC ARTIFACT ONLY — this module builds the byte layout the dial handler
-//! (FIFA23.exe+0x4f4d360) expects in its `rdx` argument, plus a do-nothing
-//! completion callback. It does NOT call the game, does NOT install any detour,
-//! and is NOT wired into the hook yet. The invocation phase (later) consumes
-//! `build_notification()` + `completion_stub`.
-//!
-//! Layout contract (from the 2026-07-03 dial-branch RE report on 0x144f4d590):
-//!   [+0x00]  byte   : entry gate — MUST be non-zero (else the error path fires). => 1
-//!   [+0x80]  qword  : completion delegate fn pointer. => &completion_stub
-//!   [+0x88]  qword  : delegate capture #1. => 0
-//!   [+0x90]  qword  : delegate capture #2. => 0
-//!   [+0xa0]  dword  : RpcJob key/priority (copied, never compared on dial path). => 0
-//!   everything else in [0x00..0x100] : 0
-//! The RE confirmed no other offset in this range is read on the success path.
-//! Total size 0x100 (256): the tail 0xa4..0x100 is zero padding — cheap insurance
-//! against a read we might have missed. Any offset here is TODO/CONFIRM against the
-//! RE report; if the game contradicts it at runtime, stop and re-verify.
-
-// This module is deliberately unused for now (the invocation phase will call into
-// it). Silence "never used" warnings until then rather than sprinkle #[allow] on
-// each item. Remove this once the trigger wires the API up.
-#![allow(dead_code)]
-
-use core::sync::atomic::{AtomicU32, Ordering};
-
-/// Size of the notification struct, in bytes. 0x100 = 256.
-const NOTIFICATION_SIZE: usize = 0x100;
-
-// --- field offsets (named so the code reads like the RE contract) -------------
-const OFF_GATE: usize = 0x00; // byte, must be non-zero
-const OFF_DELEGATE_FN: usize = 0x80; // qword, completion fn pointer
-const OFF_DELEGATE_CAP1: usize = 0x88; // qword, capture (0)
-const OFF_DELEGATE_CAP2: usize = 0x90; // qword, capture (0)
-const OFF_KEY: usize = 0xa0; // dword, job key/priority (0)
-
-/// Counts how many times `completion_stub` has been entered.
-///
-/// Why `AtomicU32` and not `static mut u32`: a `static mut` needs `unsafe` to
-/// touch and, worse, gives *undefined behaviour* if two threads write it at once
-/// (a data race). The completion callback may be invoked from an arbitrary game
-/// thread, so a plain counter would race. `AtomicU32` makes increment a single
-/// lock-free hardware instruction with well-defined concurrent semantics, and it
-/// needs no `unsafe`. `Ordering::Relaxed` is enough here: we only care about the
-/// count value, not about ordering it against other memory.
-static COMPLETION_STUB_CALLS: AtomicU32 = AtomicU32::new(0);
-
-/// The completion callback the game may invoke when the RpcJob finishes.
-///
-/// `extern "C"`: on the `x86_64-pc-windows-gnu` target this selects the Microsoft
-/// x64 calling convention — exactly how the game invokes the pointer (`call r10`,
-/// args in rcx/rdx/r8/r9, return in rax, caller cleans the stack). Matching the
-/// convention is what makes it safe for the game to call us.
-///
-/// We declare four pointer-sized params and ignore them. The RE showed the delegate
-/// is called with e.g. an HRESULT in `rdx` and a `this`-like pointer in `rcx`; the
-/// success-path completion may pass different values. Because Win64 is caller-clean
-/// and puts the first four integer args in registers, declaring four ignored args is
-/// safe no matter what the caller actually passes — we simply never read them.
-///
-/// The body does the absolute minimum: bump the atomic counter and return 0. NO
-/// logging, NO allocation, NO calls — a completion callback can fire from any game
-/// context, and even a log write there could be unsafe. Observe from outside via
-/// `completion_stub_call_count()` instead.
-///
-/// Returns `usize` = 0, which reads as an `S_OK`-shaped HRESULT if the caller looks
-/// at the return value. (Returning void would be equally fine; 0 is a safe default.)
-pub extern "C" fn completion_stub(_a: usize, _b: usize, _c: usize, _d: usize) -> usize {
-    // `fetch_add` is a single atomic read-modify-write (lock xadd) — no lock, no
-    // syscall, no allocation. Safe to call from any thread/context.
-    COMPLETION_STUB_CALLS.fetch_add(1, Ordering::Relaxed);
-    0
-}
-
-/// Read how many times `completion_stub` has fired. For an outside observer thread —
-/// keeps all I/O out of the stub itself.
-pub fn completion_stub_call_count() -> u32 {
-    COMPLETION_STUB_CALLS.load(Ordering::Relaxed)
-}
-
-/// Write a little-endian u64 into `buf` starting at `offset`.
-///
-/// Endianness matters because we're hand-laying a memory image the game will read
-/// back as a raw pointer/integer. x86-64 is *little-endian*: the least-significant
-/// byte sits at the lowest address. `value.to_le_bytes()` produces the 8 bytes in
-/// exactly that order, so when the game does `mov rax,[ptr]` it reconstructs the
-/// original `value`. Using the native byte order by hand (or `transmute`) would be
-/// wrong on a big-endian machine; `to_le_bytes` states the intent explicitly.
-///
-/// `buf[offset..offset + 8]` is an 8-byte sub-slice; `copy_from_slice` copies the
-/// 8-byte array into it. Both sides are length 8, so it can't panic here. (This is
-/// the standard, safe way to poke a fixed-width integer into a `[u8]`.)
-fn write_u64_le(buf: &mut [u8], offset: usize, value: u64) {
-    buf[offset..offset + 8].copy_from_slice(&value.to_le_bytes());
-}
-
-/// Write a little-endian u32 into `buf` starting at `offset`. (Same idea as
-/// `write_u64_le`, 4 bytes wide.)
-fn write_u32_le(buf: &mut [u8], offset: usize, value: u32) {
-    buf[offset..offset + 4].copy_from_slice(&value.to_le_bytes());
-}
-
-/// Build the fully-populated notification struct, ready to be passed by pointer to
-/// the dial handler as its `rdx` argument.
-///
-/// Returns a `[u8; 0x100]` by value. Why a byte array and not a `#[repr(C)]` struct:
-/// the layout is a precise *offset* contract recovered by RE, with meaningful data
-/// only at 0x00/0x80/0x88/0x90/0xa0 and zeros elsewhere. A byte array makes every
-/// offset literally visible and immune to any field-ordering/padding surprise. A
-/// `#[repr(C)] struct` with explicit padding fields would work too, but it's easier
-/// to get a padding byte wrong than to index a flat array. (For future reference:
-/// the `bytemuck` crate can safely reinterpret a `#[repr(C)]` struct as `&[u8]`
-/// zero-copy — worth knowing, but overkill here and an extra dependency.)
-pub fn build_notification() -> [u8; NOTIFICATION_SIZE] {
-    // Start fully zeroed. This already satisfies every "= 0" field (caps at +0x88/
-    // +0x90, the key at +0xa0, and all padding); we only need to set the non-zero
-    // fields below.
-    let mut buf = [0u8; NOTIFICATION_SIZE];
-
-    // [+0x00] entry gate: must be non-zero to reach the dial path.
-    buf[OFF_GATE] = 1;
-
-    // [+0x80] completion delegate function pointer = &completion_stub.
-    //
-    // `completion_stub as *const ()`: a *function item* in Rust is a zero-sized,
-    // unique type, not a value. Casting it to a raw pointer coerces it to a function
-    // pointer and then to an untyped code pointer `*const ()` — i.e. the address of
-    // the function's machine code. The intermediate `*const ()` before `as u64` is
-    // the idiomatic form: it says "treat this as an address" and also avoids the
-    // `clippy`/rustc "direct cast of function item into an integer" lint you'd get
-    // from `completion_stub as u64`.
-    let stub_addr = completion_stub as *const () as u64;
-    write_u64_le(&mut buf, OFF_DELEGATE_FN, stub_addr);
-
-    // [+0x88]/[+0x90] delegate captures = 0. Already zero from initialization; write
-    // them explicitly so the layout intent is visible at a glance.
-    write_u64_le(&mut buf, OFF_DELEGATE_CAP1, 0);
-    write_u64_le(&mut buf, OFF_DELEGATE_CAP2, 0);
-
-    // [+0xa0] RpcJob key/priority dword = 0 (copied, never compared on the dial path).
-    write_u32_le(&mut buf, OFF_KEY, 0);
-
-    buf
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn notification_layout() {
-        let n = build_notification();
-
-        // Total size is exactly 0x100.
-        assert_eq!(n.len(), NOTIFICATION_SIZE);
-
-        // [+0x00] gate byte == 1.
-        assert_eq!(n[0x00], 1);
-
-        // [+0xa0..0xa4] as u32 == 0.
-        // `try_into().unwrap()` turns the 4-byte slice into a `[u8; 4]` (it can only
-        // fail if the slice weren't length 4, which it is), and `from_le_bytes`
-        // reads it back the same little-endian way we wrote it.
-        let key = u32::from_le_bytes(n[0xa0..0xa4].try_into().unwrap());
-        assert_eq!(key, 0);
-
-        // [+0x80..0x88] as u64 == address of completion_stub.
-        let stub = u64::from_le_bytes(n[0x80..0x88].try_into().unwrap());
-        assert_eq!(stub, completion_stub as *const () as u64);
-
-        // [+0x88..0x90] and [+0x90..0x98] captures == 0.
-        assert_eq!(u64::from_le_bytes(n[0x88..0x90].try_into().unwrap()), 0);
-        assert_eq!(u64::from_le_bytes(n[0x90..0x98].try_into().unwrap()), 0);
-    }
-
-    #[test]
-    fn stub_counter_increments() {
-        let before = completion_stub_call_count();
-        let _ = completion_stub(0, 0, 0, 0);
-        assert_eq!(completion_stub_call_count(), before + 1);
-    }
-}

openfut-hook/src/ea_stub.rs

@@ -1,179 +0,0 @@
-/// In-process LSX server (port 3216 / EA App Local Services Exchange).
-///
-/// Runs in a background thread inside FIFA's process so Wine's wineserver
-/// routes FIFA's connect() directly here without needing any external process.
-///
-/// Protocol: server speaks first (sends XML greeting with challenge key),
-/// then both sides do an AES-128-ECB challenge/response handshake, then
-/// all subsequent messages are AES-128-ECB encrypted.
-use windows_sys::Win32::Networking::WinSock::{
-    WSAStartup, WSACleanup, socket, bind, listen, accept, recv, send,
-    closesocket, setsockopt,
-    WSADATA, SOCKADDR, SOCKET, SOCKET_ERROR, INVALID_SOCKET,
-    AF_INET, SOCK_STREAM, IPPROTO_TCP, SOMAXCONN,
-    SO_REUSEADDR, SOL_SOCKET,
-};
-
-const PORT: u16 = 3216;
-const GREETING_KEY: &str = "cacf897a20b6d612ad0c05e011df52bb";
-
-fn server_loop() {
-    unsafe {
-        let mut wsa = core::mem::zeroed::<WSADATA>();
-        if WSAStartup(0x0202, &mut wsa) != 0 {
-            crate::write_log("ea_stub: WSAStartup failed\n");
-            return;
-        }
-
-        let srv = socket(AF_INET as i32, SOCK_STREAM, IPPROTO_TCP as i32);
-        if srv == INVALID_SOCKET {
-            crate::write_log("ea_stub: socket() failed\n");
-            WSACleanup();
-            return;
-        }
-
-        let yes: i32 = 1;
-        setsockopt(srv, SOL_SOCKET as i32, SO_REUSEADDR, &yes as *const i32 as *const u8, 4);
-
-        // sockaddr_in: sin_family(u16-LE) + sin_port(u16-BE) + sin_addr(u32) + padding
-        let mut addr = [0u8; 16];
-        let family = AF_INET as u16;
-        addr[0] = (family & 0xFF) as u8;
-        addr[1] = (family >> 8) as u8;
-        addr[2] = (PORT >> 8) as u8;
-        addr[3] = (PORT & 0xFF) as u8;
-
-        if bind(srv, addr.as_ptr() as *const SOCKADDR, addr.len() as i32) == SOCKET_ERROR {
-            crate::write_log("ea_stub: bind() failed — port 3216 in use\n");
-            closesocket(srv);
-            WSACleanup();
-            return;
-        }
-
-        listen(srv, SOMAXCONN as i32);
-        crate::write_log("ea_stub: listening on port 3216\n");
-
-        loop {
-            crate::write_log("ea_stub: calling accept...\n");
-            let client = accept(srv, core::ptr::null_mut(), core::ptr::null_mut());
-            if client == INVALID_SOCKET {
-                use windows_sys::Win32::Networking::WinSock::WSAGetLastError;
-                let e = WSAGetLastError();
-                crate::write_log(&format!("ea_stub: accept FAILED wsa_err={e}\n"));
-                break;
-            }
-            crate::write_log("ea_stub: connection accepted\n");
-            handle_lsx(client);
-        }
-
-        closesocket(srv);
-        WSACleanup();
-    }
-}
-
-unsafe fn lsx_send(sock: SOCKET, msg: &str) -> bool {
-    // LSX messages are null-terminated
-    let mut buf = msg.as_bytes().to_vec();
-    buf.push(0);
-    let n = send(sock, buf.as_ptr(), buf.len() as i32, 0);
-    if n == SOCKET_ERROR {
-        use windows_sys::Win32::Networking::WinSock::WSAGetLastError;
-        let e = WSAGetLastError();
-        crate::write_log(&format!("ea_stub: send FAILED wsa_err={e}\n"));
-        false
-    } else {
-        crate::write_log(&format!("ea_stub: sent {n} bytes\n"));
-        true
-    }
-}
-
-unsafe fn lsx_recv(sock: SOCKET) -> Option<String> {
-    let mut buf = vec![0u8; 8192];
-    let n = recv(sock, buf.as_mut_ptr(), buf.len() as i32, 0);
-    if n <= 0 {
-        use windows_sys::Win32::Networking::WinSock::WSAGetLastError;
-        let e = WSAGetLastError();
-        crate::write_log(&format!("ea_stub: recv returned {n} wsa_err={e}\n"));
-        return None;
-    }
-    let text = String::from_utf8_lossy(&buf[..n as usize])
-        .trim_matches('\0')
-        .to_string();
-    crate::write_log(&format!("ea_stub: recv {n} bytes: {}\n", &text[..text.len().min(300)]));
-    Some(text)
-}
-
-unsafe fn handle_lsx(sock: SOCKET) {
-    // ── 1. Send greeting (server speaks first) ────────────────────────────
-    let greeting = format!(
-        "<LSX>\r\n    <Event sender=\"EALS\">\r\n        <Challenge build=\"release\" key=\"{GREETING_KEY}\" version=\"10,5,30,15625\" />\r\n    </Event>\r\n</LSX>"
-    );
-    crate::write_log("ea_stub: sending LSX greeting\n");
-    if !lsx_send(sock, &greeting) {
-        closesocket(sock);
-        return;
-    }
-
-    // ── 2. Receive FIFA's ChallengeResponse ───────────────────────────────
-    let challenge_xml = match lsx_recv(sock) {
-        Some(s) => s,
-        None => { closesocket(sock); return; }
-    };
-
-    // Parse: split on '"' — EAappEmulater style
-    // <Request id="N" ...><ChallengeResponse ... response="HEX" key="HEX">
-    let parts: Vec<&str> = challenge_xml.split('"').collect();
-    let id  = parts.get(3).copied().unwrap_or("1");
-    let key = parts.get(7).copied().unwrap_or("");
-    crate::write_log(&format!("ea_stub: challenge id={id} key={key}\n"));
-
-    let our_response = crate::lsx::make_challenge_response(key);
-    let seed = compute_seed(&our_response);
-    crate::write_log(&format!("ea_stub: our_response={our_response} seed={seed}\n"));
-
-    // ── 3. Send ChallengeAccepted ─────────────────────────────────────────
-    let accepted = format!(
-        "<LSX>\r\n    <Response id=\"{id}\" sender=\"EALS\">\r\n        <ChallengeAccepted response=\"{our_response}\" />\r\n    </Response>\r\n</LSX>"
-    );
-    crate::write_log("ea_stub: sending ChallengeAccepted\n");
-    if !lsx_send(sock, &accepted) {
-        closesocket(sock);
-        return;
-    }
-
-    // ── 4. Session loop ───────────────────────────────────────────────────
-    loop {
-        let encrypted = match lsx_recv(sock) {
-            Some(s) => s,
-            None => break,
-        };
-        if encrypted.trim().is_empty() { continue; }
-
-        let request = crate::lsx::lsx_decrypt(&encrypted, seed);
-        crate::write_log(&format!("ea_stub: request: {}\n", &request[..request.len().min(300)]));
-
-        if request.trim().is_empty() {
-            crate::write_log("ea_stub: empty decrypted request — skipping\n");
-            continue;
-        }
-
-        let response_xml = crate::lsx::dispatch(request.trim());
-        crate::write_log(&format!("ea_stub: response: {}\n", &response_xml[..response_xml.len().min(300)]));
-
-        let encrypted_resp = crate::lsx::lsx_encrypt(&response_xml, seed);
-        if !lsx_send(sock, &encrypted_resp) { break; }
-    }
-
-    closesocket(sock);
-    crate::write_log("ea_stub: client disconnected\n");
-}
-
-fn compute_seed(hex: &str) -> u16 {
-    let b0 = u8::from_str_radix(&hex[..2.min(hex.len())], 16).unwrap_or(0);
-    let b1 = u8::from_str_radix(&hex[2..4.min(hex.len())], 16).unwrap_or(0);
-    ((b0 as u16) << 8) | (b1 as u16)
-}
-
-pub fn start() {
-    std::thread::spawn(server_loop);
-}

openfut-hook/src/fifa17.rs

@@ -1,14 +1,12 @@
 //! FIFA 17 injection path (feature = "fifa17").
 //!
-//! This is a *separate, minimal* entry point from the FIFA-23 `install_hooks`.
-//! FIFA 17 is a different game with different in-memory structures, so we run NONE
-//! of the FIFA-23 connect/LSX/origin_spy/dial logic here — that would at best
-//! no-op and at worst crash. For now this proves the version.dll hijack actually
-//! loads us into FIFA17.exe and dumps the module map, which we need to locate
-//! DirtySDK/ProtoSSL's cert-verify function (the next milestone: patch it so the
-//! secure Blaze redirector's TLS handshake succeeds against our bridge cert).
-//!
-//! Everything here is read-only except the (not-yet-enabled) cert-verify patch.
+//! This is the game module selected by the `fifa17` feature: `install()` spawns a
+//! worker (off the loader lock) that dumps the module map, arms the config-driven
+//! network redirect (connect / WSAConnect / ConnectEx, target from `openfut.cfg`
+//! via `openfut-common`), and installs the FIFA-17 SBC dispatch repair plus the
+//! store/season hooks. Structures and RVAs here are specific to FIFA17.exe /
+//! CardsDLL_Win64_retail.dll; a future game gets its own module, never a copy of
+//! this one.
 
 use crate::write_log;
 use windows_sys::Win32::Foundation::{CloseHandle, INVALID_HANDLE_VALUE};
@@ -67,6 +65,29 @@ unsafe fn dump_modules() {
     CloseHandle(snap);
 }
 
+/// Read `openfut.cfg` from the game directory (next to `FIFA17.exe`) and resolve
+/// the OpenFUT server via the shared `openfut-common` parser. Returns `None`
+/// with a diagnostic when the file is absent or unusable, so the hook fails
+/// safe — no redirect installed rather than a corrupt one.
+fn load_server() -> Option<openfut_common::ResolvedServer> {
+    let dir = std::env::current_exe().ok()?.parent()?.to_path_buf();
+    let path = dir.join("openfut.cfg");
+    let contents = match std::fs::read_to_string(&path) {
+        Ok(c) => c,
+        Err(e) => {
+            write_log(&format!("fifa17: cannot read {}: {e}\n", path.display()));
+            return None;
+        }
+    };
+    match openfut_common::ServerConfig::parse(&contents).and_then(|c| c.resolve()) {
+        Ok(server) => Some(server),
+        Err(e) => {
+            write_log(&format!("fifa17: openfut.cfg unusable: {e}\n"));
+            None
+        }
+    }
+}
+
 /// Worker that runs AFTER DllMain returns (loader lock released). ToolHelp and
 /// other loader-touching calls are unsafe under the loader lock, so we defer them
 /// to this thread. This is what fixed the "game exits right after DllMain" issue.
@@ -79,13 +100,65 @@ unsafe extern "system" fn worker(_: *mut core::ffi::c_void) -> u32 {
     ));
     dump_modules();
     write_log("fifa17: worker complete (injection healthy)\n");
-    // SBC render intervention (inert unless OPENFUT_SBC_HOOK=1). Spawns its own deferred
-    // worker that waits for CardsDLL to load. See sbc_hook.rs / docs/sbc-hook-dll-spec.md.
+
+    // ── FIFA17 in-process network redirect (Milestone A) ──────────────────────
+    // Route EA endpoints to the configured OpenFUT server from openfut.cfg
+    // (openfut-common is the single source of truth). No hosts/iptables/portproxy.
+    match load_server() {
+        Some(server) => {
+            write_log(&format!(
+                "fifa17: redirect armed → {} https={} redirector={} main={}\n",
+                server.redirect_ip,
+                server.ports.https,
+                server.ports.blaze_redirector,
+                server.ports.blaze_main
+            ));
+            crate::connect_hook::set_redirect(server);
+            if crate::connect_hook::install_inline_connect_hook() {
+                write_log("fifa17: connect inline-hooked\n");
+            } else {
+                write_log("fifa17: connect hook FAILED\n");
+            }
+            let wp = crate::iat::resolve(b"ws2_32.dll\0", b"WSAConnect\0");
+            if !wp.is_null() {
+                let f: unsafe extern "system" fn(
+                    usize,
+                    *const u8,
+                    i32,
+                    *const (),
+                    *const (),
+                    *const (),
+                    *const (),
+                ) -> i32 = core::mem::transmute(wp);
+                crate::connect_hook::set_real_wsa_connect(f);
+                crate::iat::patch_iat(wp, crate::connect_hook::hooked_wsa_connect as *const ());
+                write_log("fifa17: WSAConnect IAT patched\n");
+            }
+            if crate::connectex_hook::install_wsaioctl_hook() {
+                write_log("fifa17: ConnectEx (WSAIoctl) hooked\n");
+            } else {
+                write_log("fifa17: ConnectEx hook FAILED\n");
+            }
+        }
+        None => write_log(
+            "fifa17: NO redirect installed (openfut.cfg missing/invalid) — EA traffic left untouched\n",
+        ),
+    }
+
+    // FIFA17 TLS/certificate + store crash-guard compatibility (Milestone B).
+    // Spawns its own bounded polling worker: patches the FIFA17.exe ProtoSSL cert
+    // gates once the packer unpacks them, then the CardsDLL store guard once UT
+    // loads it. Fail-closed and one-shot; replaces the external openfut-autopatch.
+    crate::fifa17_tls::install();
+    // The promoted SBC dispatch repair (and the evidence traces it decides on) arms
+    // itself from the build; its safety is the runtime signature/evidence gate. The
+    // remaining legacy experiment modules stay inert unless their env gate is `1`.
     crate::sbc_hook::install();
-    // Passive transaction tracing has a separate kill switch from cache resolution.
-    // It currently fails closed until safe relocating trampolines are proven.
     crate::sbc_trace::install();
+    crate::sbc_dispatch::install();
     crate::sbc_request_trace::install();
+    crate::store_entry::install();
+    crate::season_trace::install();
     0
 }
 

openfut-hook/src/fifa17_tls.rs

@@ -0,0 +1,334 @@
+//! FIFA 17 in-process TLS/certificate + store crash-guard compatibility.
+//!
+//! Ports the *proven* subset of the external `openfut-autopatch` patch set into
+//! `version.dll`, so the client-local contract no longer needs an external
+//! `/proc`-writing patcher. Two concerns, both fail-closed and one-shot:
+//!
+//!   1. ProtoSSL certificate gates in FIFA17.exe (REQUIRED_FOR_TLS) — let the
+//!      TLS handshake against the OpenFUT bridge cert succeed. Present only after
+//!      the STEAMPUNKS packer maps/decrypts the real code, so they are polled for.
+//!   2. The empty-"My Packs" store resolver crash-guard in CardsDLL
+//!      (REQUIRED_FOR_STORE_TLS, bug 6c) — CardsDLL loads lazily on entering UT,
+//!      so it is applied once the module appears.
+//!
+//! Deliberately NOT ported: the eight unconditional `STORE_PATCHES` from the
+//! external patcher. They carry no recovered original bytes (cannot be
+//! fail-closed) and are re-applied every tick (would require the very
+//! constant-rewrite loop this milestone forbids); the external patcher's own
+//! source records no rationale for them. See the Vault ADR.
+//!
+//! Every address is ASLR-relocated from its preferred image base at runtime
+//! (`live = module_base + (static_va - preferred_base)`); nothing patches an
+//! absolute address. Every write goes through [`crate::patch_mem`]'s fail-closed
+//! primitive: original → write+verify, already-patched → no-op, anything else →
+//! logged and skipped.
+
+use crate::patch_mem::{self, ApplyOutcome, Mem, PatchState, WinMem};
+use crate::write_log;
+use std::time::{Duration, Instant};
+
+/// FIFA17.exe preferred image base (confirmed: futmem reports the client mapped
+/// flat at this base; Wine honours it, native Windows ASLR may not — hence the
+/// runtime-base + RVA model below).
+const FIFA17_PREFERRED_BASE: u64 = 0x1_4000_0000;
+/// CardsDLL_Win64_retail.dll preferred image base.
+const CARDS_PREFERRED_BASE: u64 = 0x1_8000_0000;
+
+/// Which module a site lives in.
+#[derive(Clone, Copy, PartialEq, Eq, Debug)]
+enum Module {
+    Fifa17Exe,
+    CardsDll,
+}
+
+impl Module {
+    const fn preferred_base(self) -> u64 {
+        match self {
+            Module::Fifa17Exe => FIFA17_PREFERRED_BASE,
+            Module::CardsDll => CARDS_PREFERRED_BASE,
+        }
+    }
+
+    /// Runtime base of the loaded module, or `None` if not mapped yet. FIFA17.exe
+    /// is the main image (null name); CardsDLL is resolved by its retail name.
+    unsafe fn runtime_base(self) -> Option<usize> {
+        match self {
+            Module::Fifa17Exe => patch_mem::module_base(core::ptr::null()),
+            Module::CardsDll => {
+                patch_mem::module_base(c"CardsDLL_Win64_retail.dll".as_ptr().cast())
+                    .or_else(|| patch_mem::module_base(c"CardsDLL.dll".as_ptr().cast()))
+            }
+        }
+    }
+}
+
+/// One fail-closed byte patch, expressed as a static VA in its module's preferred
+/// image so the derivation `RVA = VA - preferred_base` is auditable.
+struct Site {
+    module: Module,
+    static_va: u64,
+    orig: &'static [u8],
+    patch: &'static [u8],
+    label: &'static str,
+}
+
+impl Site {
+    const fn rva(&self) -> u64 {
+        patch_mem::rva(self.static_va, self.module.preferred_base())
+    }
+    fn live_addr(&self, base: usize) -> usize {
+        patch_mem::live_addr(base, self.rva())
+    }
+}
+
+// ── ProtoSSL certificate gates (FIFA17.exe) — REQUIRED_FOR_TLS ──────────────────
+// GATE1: JNZ rel32 -> 6×NOP (fall through the cert-verify failure branch).
+// GATE2: function prologue -> `xor eax,eax; ret` (cert-verify returns 0/false).
+// Applied as a pair, exactly like the external patcher: written only when BOTH
+// read their known original, treated as done when BOTH already hold the patch.
+const GATE1: Site = Site {
+    module: Module::Fifa17Exe,
+    static_va: 0x1_4613_2548,
+    orig: &[0x0f, 0x85, 0x76, 0x01, 0x00, 0x00],
+    patch: &[0x90, 0x90, 0x90, 0x90, 0x90, 0x90],
+    label: "GATE1",
+};
+const GATE2: Site = Site {
+    module: Module::Fifa17Exe,
+    static_va: 0x1_4613_61b0,
+    orig: &[0x48, 0x89, 0x5c],
+    patch: &[0x31, 0xc0, 0xc3],
+    label: "GATE2",
+};
+
+// ── Empty "My Packs" store resolver crash-guard (CardsDLL) — REQUIRED_FOR_STORE_TLS
+// JNZ 0x14869 (75 0f) -> JG 0x14869 (7f 0f): routes zero/negative store category
+// ids through the Browse path instead of a NULL deref. Fail-closed one-shot.
+const STORE_GUARD: Site = Site {
+    module: Module::CardsDll,
+    static_va: 0x1_8001_4858,
+    orig: &[0x75, 0x0f],
+    patch: &[0x7f, 0x0f],
+    label: "empty-mypacks-store-guard",
+};
+
+/// Poll cadence while waiting for the packer to unpack / CardsDLL to load. Low
+/// frequency: the thread sleeps between ticks, so idle CPU is negligible.
+const POLL: Duration = Duration::from_millis(250);
+/// Upper bound on the whole worker's lifetime so it can never spin forever if the
+/// user never enters Ultimate Team (CardsDLL never loads).
+const MAX_WAIT: Duration = Duration::from_secs(15 * 60);
+
+/// Decision for the FIFA17.exe cert-gate pair.
+#[derive(Clone, Copy, PartialEq, Eq, Debug)]
+enum CertAction {
+    /// Not both readable yet, or a mixed/unrecognised state — keep polling.
+    Wait,
+    /// Both gates hold their known original — safe to apply the pair.
+    Apply,
+    /// Both gates already hold the patch — nothing to do.
+    Done,
+}
+
+/// Pure pairing rule (unit-tested): only act when both gates agree.
+fn cert_action(g1: Option<PatchState>, g2: Option<PatchState>) -> CertAction {
+    match (g1, g2) {
+        (Some(PatchState::AlreadyPatched), Some(PatchState::AlreadyPatched)) => CertAction::Done,
+        (Some(PatchState::Original), Some(PatchState::Original)) => CertAction::Apply,
+        _ => CertAction::Wait,
+    }
+}
+
+/// Arm the FIFA17 TLS/store compatibility patcher: spawns a bounded background
+/// worker so it never touches the loader lock and never blocks `install()`.
+pub fn install() {
+    std::thread::spawn(|| unsafe { worker() });
+}
+
+unsafe fn worker() {
+    write_log("fifa17_tls: patch worker start\n");
+    let mut mem = WinMem;
+    let start = Instant::now();
+    let mut cert_done = false;
+    let mut guard_done = false;
+    // Throttle the "still waiting" diagnostics to one line each.
+    let mut logged_cert_wait = false;
+    let mut logged_guard_wait = false;
+
+    loop {
+        if !cert_done {
+            cert_done = try_cert_gates(&mut mem, &mut logged_cert_wait);
+        }
+        if !guard_done {
+            match Module::CardsDll.runtime_base() {
+                Some(cbase) => guard_done = try_store_guard(&mut mem, cbase),
+                None => {
+                    if !logged_guard_wait {
+                        write_log("fifa17_tls: waiting for CardsDLL (enter Ultimate Team)\n");
+                        logged_guard_wait = true;
+                    }
+                }
+            }
+        }
+        if cert_done && guard_done {
+            write_log("fifa17_tls: TLS patch set complete\n");
+            return;
+        }
+        if start.elapsed() >= MAX_WAIT {
+            write_log(&format!(
+                "fifa17_tls: worker stop (timeout {MAX_WAIT:?}); cert_gates_done={cert_done} store_guard_done={guard_done}\n"
+            ));
+            return;
+        }
+        std::thread::sleep(POLL);
+    }
+}
+
+/// Apply the FIFA17.exe cert-gate pair. Returns `true` once the pair is settled
+/// (applied or already patched); `false` while still unpacking / not both ready.
+unsafe fn try_cert_gates(mem: &mut WinMem, logged_wait: &mut bool) -> bool {
+    let base = match Module::Fifa17Exe.runtime_base() {
+        Some(b) => b,
+        None => return false,
+    };
+    let g1_addr = GATE1.live_addr(base);
+    let g2_addr = GATE2.live_addr(base);
+    let g1 = patch_mem::read_state(mem, g1_addr, GATE1.orig, GATE1.patch);
+    let g2 = patch_mem::read_state(mem, g2_addr, GATE2.orig, GATE2.patch);
+
+    match cert_action(g1, g2) {
+        CertAction::Done => {
+            write_log("fifa17_tls: cert gates already patched\n");
+            true
+        }
+        CertAction::Apply => {
+            let o1 = patch_mem::apply_checked(mem, g1_addr, GATE1.orig, GATE1.patch);
+            let o2 = patch_mem::apply_checked(mem, g2_addr, GATE2.orig, GATE2.patch);
+            if o1.is_patched() && o2.is_patched() {
+                write_log(&format!(
+                    "fifa17_tls: PATCHED cert gates ({} @ {g1_addr:#x} {o1:?}; {} @ {g2_addr:#x} {o2:?})\n",
+                    GATE1.label, GATE2.label
+                ));
+                true
+            } else {
+                write_log(&format!(
+                    "fifa17_tls: cert gate write FAILED ({} {o1:?}; {} {o2:?}) — TLS NOT installed\n",
+                    GATE1.label, GATE2.label
+                ));
+                // Terminal: a write/verify failure will not fix itself by retrying.
+                true
+            }
+        }
+        CertAction::Wait => {
+            if !*logged_wait {
+                write_log(&format!(
+                    "fifa17_tls: cert gates not ready (still unpacking?) {}={g1:?} {}={g2:?}\n",
+                    GATE1.label, GATE2.label
+                ));
+                *logged_wait = true;
+            }
+            false
+        }
+    }
+}
+
+/// Apply the CardsDLL store crash-guard once CardsDLL is mapped. Returns `true`
+/// once the site is settled (its bytes are final the moment CardsDLL is loaded,
+/// so any read outcome is a terminal decision — no further polling).
+unsafe fn try_store_guard(mem: &mut WinMem, cbase: usize) -> bool {
+    let addr = STORE_GUARD.live_addr(cbase);
+    let outcome = patch_mem::apply_checked(mem, addr, STORE_GUARD.orig, STORE_GUARD.patch);
+    match outcome {
+        ApplyOutcome::NotReadable => false, // CardsDLL mapped but this page not yet — retry
+        ApplyOutcome::Applied | ApplyOutcome::AlreadyPatched => {
+            write_log(&format!(
+                "fifa17_tls: store guard {} @ {addr:#x} {outcome:?} (VERIFIED empty-My-Packs)\n",
+                STORE_GUARD.label
+            ));
+            true
+        }
+        ApplyOutcome::Mismatch => {
+            let mut cur = [0u8; patch_mem::MAX_PATCH_LEN];
+            let n = STORE_GUARD.patch.len();
+            let seen = if mem.read(addr, &mut cur[..n]) {
+                patch_mem::hex(&cur[..n])
+            } else {
+                "unreadable".into()
+            };
+            write_log(&format!(
+                "fifa17_tls: SKIP store guard @ {addr:#x}: unexpected {seen} (build mismatch)\n"
+            ));
+            true
+        }
+        ApplyOutcome::WriteFailed | ApplyOutcome::VerifyFailed => {
+            write_log(&format!(
+                "fifa17_tls: store guard @ {addr:#x} {outcome:?}\n"
+            ));
+            true
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn every_site_is_well_formed() {
+        for s in [&GATE1, &GATE2, &STORE_GUARD] {
+            assert_eq!(
+                s.orig.len(),
+                s.patch.len(),
+                "{}: orig/patch length",
+                s.label
+            );
+            assert!(!s.orig.is_empty(), "{}: empty", s.label);
+            assert!(
+                s.patch.len() <= patch_mem::MAX_PATCH_LEN,
+                "{}: exceeds MAX_PATCH_LEN",
+                s.label
+            );
+            assert_ne!(s.orig, s.patch, "{}: orig == patch", s.label);
+        }
+    }
+
+    #[test]
+    fn rvas_match_the_recovered_derivation() {
+        assert_eq!(GATE1.rva(), 0x613_2548);
+        assert_eq!(GATE2.rva(), 0x613_61b0);
+        assert_eq!(STORE_GUARD.rva(), 0x1_4858);
+    }
+
+    #[test]
+    fn live_addresses_track_the_runtime_base() {
+        // At the preferred base the live address is the recorded static VA.
+        assert_eq!(GATE1.live_addr(0x1_4000_0000), 0x1_4613_2548);
+        assert_eq!(STORE_GUARD.live_addr(0x1_8000_0000), 0x1_8001_4858);
+        // Relocated bases shift every site by the same delta.
+        assert_eq!(GATE1.live_addr(0x3_0000_0000), 0x3_0613_2548);
+    }
+
+    #[test]
+    fn cert_pair_only_acts_when_both_gates_agree() {
+        use PatchState::*;
+        assert_eq!(
+            cert_action(Some(Original), Some(Original)),
+            CertAction::Apply
+        );
+        assert_eq!(
+            cert_action(Some(AlreadyPatched), Some(AlreadyPatched)),
+            CertAction::Done
+        );
+        // Not yet unpacked / partial / mismatched => never a blind half-write.
+        assert_eq!(cert_action(None, None), CertAction::Wait);
+        assert_eq!(cert_action(Some(Original), None), CertAction::Wait);
+        assert_eq!(
+            cert_action(Some(Original), Some(AlreadyPatched)),
+            CertAction::Wait
+        );
+        assert_eq!(
+            cert_action(Some(Mismatch), Some(Mismatch)),
+            CertAction::Wait
+        );
+    }
+}

openfut-hook/src/hooks.rs

@@ -1,82 +0,0 @@
-use std::{
-    ffi::CStr,
-    sync::{
-        atomic::{AtomicBool, Ordering},
-        OnceLock,
-    },
-};
-
-use windows_sys::Win32::Networking::WinSock::{getaddrinfo as sys_getaddrinfo, ADDRINFOA};
-
-type GetaddrinfoFn =
-    unsafe extern "system" fn(*const u8, *const u8, *const ADDRINFOA, *mut *mut ADDRINFOA) -> i32;
-
-static REAL: OnceLock<GetaddrinfoFn> = OnceLock::new();
-static REDIRECT_IP: OnceLock<Vec<u8>> = OnceLock::new();
-
-// Flipped to true the first time we successfully apply the runtime cert patch.
-// The patch is deferred to here (rather than DllMain) because EAWebKit.dll may
-// not be loaded yet when the hook DLL is injected.
-static CERT_PATCHED: AtomicBool = AtomicBool::new(false);
-
-pub fn set_real(f: GetaddrinfoFn) {
-    let _ = REAL.set(f);
-}
-
-pub fn set_redirect_ip(ip: String) {
-    let mut bytes = ip.into_bytes();
-    bytes.push(0);
-    let _ = REDIRECT_IP.set(bytes);
-}
-
-/// Returns true if `host` is an EA / EA-Sports domain that should be redirected
-/// to the local OpenFUT bridge.
-fn is_ea_host(host: &str) -> bool {
-    let h = host.to_ascii_lowercase();
-    h.ends_with(".ea.com")
-        || h == "ea.com"
-        || h.ends_with(".easports.com")
-        || h == "easports.com"
-        || h.ends_with(".ugc.footapi.com")
-        || h.ends_with(".footapi.com")
-}
-
-pub unsafe extern "system" fn hooked_getaddrinfo(
-    node_name: *const u8,
-    service_name: *const u8,
-    hints: *const ADDRINFOA,
-    result: *mut *mut ADDRINFOA,
-) -> i32 {
-    if !node_name.is_null() {
-        if let Ok(host) = CStr::from_ptr(node_name as *const i8).to_str() {
-            crate::write_log(&format!("openfut_hook: getaddrinfo({host})\n"));
-            // Milestone-0 transport watch (self-gates on OPENFUT_TRANSPORT_WATCH).
-            crate::transport_watch::note_getaddrinfo(host);
-            if is_ea_host(host) {
-                // Apply the ProtoSSL cert-verify bypass the first time we see an EA
-                // hostname — EAWebKit.dll must be loaded by now because it's calling us.
-                if !CERT_PATCHED.load(Ordering::Relaxed) {
-                    if crate::ssl_patch::patch_eawebkit_cert_verify() {
-                        CERT_PATCHED.store(true, Ordering::Relaxed);
-                        crate::write_log(
-                            "openfut_hook: ProtoSSL cert-verify patched (lazy, from getaddrinfo)\n",
-                        );
-                    } else {
-                        crate::write_log(
-                            "openfut_hook: ProtoSSL cert-verify patch FAILED in getaddrinfo\n",
-                        );
-                    }
-                }
-
-                let redirect = REDIRECT_IP
-                    .get()
-                    .map(|v| v.as_ptr())
-                    .unwrap_or(b"127.0.0.1\0".as_ptr());
-                let real = REAL.get().copied().unwrap_or(sys_getaddrinfo);
-                return real(redirect, service_name, hints, result);
-            }
-        }
-    }
-    let real = REAL.get().copied().unwrap_or(sys_getaddrinfo);
-    real(node_name, service_name, hints, result)
-}

openfut-hook/src/iat.rs

@@ -71,19 +71,6 @@ pub unsafe fn patch_iat(original_fn: *const (), hook_fn: *const ()) -> usize {
     patch_module(module, original_fn, hook_fn)
 }
 
-/// Patch the IAT of a specific already-loaded DLL (e.g. b"EAWebKit.dll\0").
-pub unsafe fn patch_iat_in(
-    module_name: &[u8],
-    original_fn: *const (),
-    hook_fn: *const (),
-) -> usize {
-    let module = GetModuleHandleA(module_name.as_ptr());
-    if module.is_null() {
-        return 0;
-    }
-    patch_module(module, original_fn, hook_fn)
-}
-
 unsafe fn patch_module(module: HMODULE, original_fn: *const (), hook_fn: *const ()) -> usize {
     if module.is_null() {
         return 0;

openfut-hook/src/lib.rs

@@ -1,30 +1,40 @@
-mod config;
+// openfut-hook: the version.dll proxy that injects OpenFUT's client-side
+// compatibility hooks into an EA FUT client.
+//
+// GAME-GENERIC BY FEATURE: each supported game is its own module, selected by a
+// per-game Cargo feature (currently only `fifa17`). `install_hooks` dispatches to
+// the selected game's `install()`. Generic infrastructure — the version proxy,
+// the connect/WSAConnect/ConnectEx redirect, IAT primitives, and the shared
+// `openfut-common` config — stays game-neutral. Add a future game with its own
+// `mod <game>;` behind a feature plus a dispatch arm; never by copying a retired
+// game's reverse-engineering.
+#[cfg(not(any(feature = "fifa17")))]
+compile_error!("select a game, e.g. --features fifa17");
+
 mod connect_hook;
 mod connectex_hook;
-mod dial_notification;
 #[cfg(feature = "fifa17")]
 mod fifa17;
-mod hooks;
+#[cfg(feature = "fifa17")]
+mod fifa17_tls;
 mod iat;
-mod origin_spy;
-#[cfg(feature = "probe")]
-mod probe;
-#[cfg(feature = "capture_baseline")]
-mod recv_hook;
+mod patch_mem;
+#[cfg(feature = "fifa17")]
+mod sbc_dispatch;
 #[cfg(feature = "fifa17")]
 mod sbc_hook;
 #[cfg(feature = "fifa17")]
 mod sbc_request_trace;
 #[cfg(feature = "fifa17")]
 mod sbc_trace;
-mod ssl_patch;
-mod tls_bypass;
-mod transport_watch;
+#[cfg(feature = "fifa17")]
+mod season_trace;
+#[cfg(feature = "fifa17")]
+mod store_entry;
 mod version_proxy;
 
 use windows_sys::Win32::{
     Foundation::{BOOL, HMODULE, TRUE},
-    Networking::WinSock::ADDRINFOA,
     System::SystemServices::DLL_PROCESS_ATTACH,
 };
 
@@ -39,21 +49,13 @@ pub(crate) fn write_log(msg: &str) {
     }
 }
 
-/// Force the log to stable storage. `write_log` already opens+closes the file per line,
-/// so nothing is buffered *inside our process* (a process crash can't lose a written
-/// line). `sync_all` additionally flushes the OS cache to disk, for durability even
-/// across a full system crash. We call this right before the dial trigger's call so the
-/// pre-call log line is guaranteed on disk if the call faults.
-#[allow(dead_code)]
-pub(crate) fn flush_log() {
-    if let Ok(f) = std::fs::OpenOptions::new()
-        .append(true)
-        .open(r"C:\openfut_hook.log")
-    {
-        let _ = f.sync_all();
-    }
-}
-
+/// # Safety
+///
+/// This is the DLL entry point invoked by the Windows loader; it MUST NOT be
+/// called manually. `module` must be the valid `HMODULE` the loader passes for
+/// this DLL. On `DLL_PROCESS_ATTACH` it installs process-wide inline detours
+/// (raw memory patching), so it must run exactly once, on the loader thread,
+/// before any hooked API is used.
 #[no_mangle]
 pub unsafe extern "system" fn DllMain(module: HMODULE, reason: u32, _: *mut ()) -> BOOL {
     if reason == DLL_PROCESS_ATTACH {
@@ -66,178 +68,9 @@ pub unsafe extern "system" fn DllMain(module: HMODULE, reason: u32, _: *mut ())
     TRUE
 }
 
-unsafe fn install_hooks(module: HMODULE) {
-    // FIFA 17 path: run ONLY the minimal, FIFA-17-safe logic and skip every
-    // FIFA-23-specific hook below (they assume FIFA 23's memory layout).
+/// Dispatch to the selected game's install path. Exactly one game feature must be
+/// enabled (enforced by the crate-level `compile_error!` above).
+unsafe fn install_hooks(_module: HMODULE) {
     #[cfg(feature = "fifa17")]
-    {
-        let _ = module;
-        fifa17::install();
-        return;
-    }
-    #[cfg(not(feature = "fifa17"))]
-    install_hooks_fifa23(module)
-}
-
-#[cfg(not(feature = "fifa17"))]
-unsafe fn install_hooks_fifa23(module: HMODULE) {
-    write_log("openfut_hook: DllMain fired\n");
-    // Milestone-0 transport watch: arm (or note disarmed) from env once, up front, so
-    // the getaddrinfo/connect/ConnectEx detours below can log Blaze-flavored activity.
-    transport_watch::arm_from_env();
-    let ip = config::read_redirect_ip(module);
-    hooks::set_redirect_ip(ip);
-
-    let ga = iat::resolve(b"ws2_32.dll\0", b"getaddrinfo\0");
-    if !ga.is_null() {
-        let f: unsafe extern "system" fn(
-            *const u8,
-            *const u8,
-            *const ADDRINFOA,
-            *mut *mut ADDRINFOA,
-        ) -> i32 = std::mem::transmute(ga);
-        hooks::set_real(f);
-        let n = iat::patch_iat(ga, hooks::hooked_getaddrinfo as *const ());
-        let m = iat::patch_iat_in(
-            b"EAWebKit.dll\0",
-            ga,
-            hooks::hooked_getaddrinfo as *const (),
-        );
-        write_log(&format!("openfut_hook: getaddrinfo IAT patched {n}+{m}\n"));
-    }
-
-    if ssl_patch::patch_main_exe_cert_verify() {
-        write_log("ssl: main exe cert-verify patched\n");
-    } else {
-        write_log("ssl: main exe cert-verify NOT FOUND\n");
-    }
-    if ssl_patch::patch_eawebkit_cert_verify() {
-        write_log("ssl: EAWebKit cert-verify patched\n");
-    } else {
-        write_log("ssl: EAWebKit cert-verify deferred\n");
-    }
-
-    if connect_hook::install_inline_connect_hook() {
-        write_log("connect: inline-hooked\n");
-    } else {
-        write_log("connect: hook FAILED\n");
-    }
-    let wp = iat::resolve(b"ws2_32.dll\0", b"WSAConnect\0");
-    if !wp.is_null() {
-        let f: unsafe extern "system" fn(
-            usize,
-            *const u8,
-            i32,
-            *const (),
-            *const (),
-            *const (),
-            *const (),
-        ) -> i32 = std::mem::transmute(wp);
-        connect_hook::set_real_wsa_connect(f);
-        iat::patch_iat(wp, connect_hook::hooked_wsa_connect as *const ());
-        write_log("connect: WSAConnect IAT patched\n");
-    }
-
-    if connectex_hook::install_wsaioctl_hook() {
-        write_log("connectex: WSAIoctl inline-hooked\n");
-    } else {
-        write_log("connectex: WSAIoctl hook FAILED\n");
-    }
-
-    // RE instrumentation: passive logging detours on FIFA's in-process online-flow
-    // functions (GoOnline, GetInternetConnectedState, event deserializers) to see
-    // where FIFA stalls after our pushed LSX events. Deferred until anadius loads.
-    #[cfg(feature = "probe")]
-    {
-        probe::install_probes_deferred();
-        write_log("probe: deferred install scheduled\n");
-    }
-
-    // recv/send hooks removed — LSX is now handled by the native openfut-bridge
-    // LSX server (port 3216), so in-process interception is no longer needed.
-    //
-    // Except in the `capture_baseline` build: with the LSX redirect off, FIFA talks
-    // to anadius directly, and these hooks log anadius's real LSX request/response
-    // frames (pass-through, no emulation) so we can diff them against our bridge.
-    #[cfg(feature = "capture_baseline")]
-    {
-        if recv_hook::install_recv_hook() {
-            write_log("CAP: recv inline-hooked\n");
-        } else {
-            write_log("CAP: recv hook FAILED\n");
-        }
-        if recv_hook::install_send_hook() {
-            write_log("CAP: send inline-hooked\n");
-        } else {
-            write_log("CAP: send hook FAILED\n");
-        }
-    }
-
-    macro_rules! hook_iat {
-        ($dll:expr, $sym:expr, $setter:ident, $handler:expr, $ty:ty) => {{
-            let ptr = iat::resolve($dll, $sym);
-            if !ptr.is_null() {
-                let f: $ty = std::mem::transmute(ptr);
-                origin_spy::$setter(f);
-                iat::patch_iat(ptr, $handler as *const ());
-                "ok"
-            } else {
-                "miss"
-            }
-        }};
-    }
-    let ra = hook_iat!(
-        b"advapi32.dll\0",
-        b"RegQueryValueExA\0",
-        set_real_reg_a,
-        origin_spy::hooked_reg_query_a,
-        unsafe extern "system" fn(isize, *const u8, *mut u32, *mut u32, *mut u8, *mut u32) -> i32
-    );
-    let rw = hook_iat!(
-        b"advapi32.dll\0",
-        b"RegQueryValueExW\0",
-        set_real_reg_w,
-        origin_spy::hooked_reg_query_w,
-        unsafe extern "system" fn(isize, *const u16, *mut u32, *mut u32, *mut u8, *mut u32) -> i32
-    );
-    let ma = hook_iat!(
-        b"kernel32.dll\0",
-        b"OpenMutexA\0",
-        set_real_mutex_a,
-        origin_spy::hooked_open_mutex_a,
-        unsafe extern "system" fn(u32, i32, *const u8) -> isize
-    );
-    let mw = hook_iat!(
-        b"kernel32.dll\0",
-        b"OpenMutexW\0",
-        set_real_mutex_w,
-        origin_spy::hooked_open_mutex_w,
-        unsafe extern "system" fn(u32, i32, *const u16) -> isize
-    );
-    write_log(&format!(
-        "origin_spy: RegA={ra} RegW={rw} MutexA={ma} MutexW={mw}\n"
-    ));
-
-    let cv = iat::resolve(b"crypt32.dll\0", b"CertVerifyCertificateChainPolicy\0");
-    if !cv.is_null() {
-        let f: unsafe extern "system" fn(*const u8, *const (), *const (), *mut u32) -> BOOL =
-            std::mem::transmute(cv);
-        tls_bypass::set_real(f);
-        iat::patch_iat(cv, tls_bypass::hooked_cert_verify_chain_policy as *const ());
-        iat::patch_iat_in(
-            b"EAWebKit.dll\0",
-            cv,
-            tls_bypass::hooked_cert_verify_chain_policy as *const (),
-        );
-        iat::patch_iat_in(
-            b"winhttp.dll\0",
-            cv,
-            tls_bypass::hooked_cert_verify_chain_policy as *const (),
-        );
-        iat::patch_iat_in(
-            b"wininet.dll\0",
-            cv,
-            tls_bypass::hooked_cert_verify_chain_policy as *const (),
-        );
-    }
+    fifa17::install();
 }

openfut-hook/src/lsx.rs

@@ -1,548 +0,0 @@
-/// EA App LSX protocol emulator (port 3216).
-///
-/// FIFA 23 opens two concurrent connections to port 3216 (one for EbisuSDK,
-/// one for the login service).  We track up to 4 sockets in LSX_POOL with
-/// independent state per connection.
-use core::sync::atomic::{AtomicUsize, Ordering};
-use std::sync::Mutex;
-
-// ─── per-connection slot ─────────────────────────────────────────────────────
-
-struct LsxSlot {
-    socket:  AtomicUsize,   // usize::MAX = empty
-    state:   AtomicUsize,
-    seed:    AtomicUsize,
-    pending: Mutex<Option<Vec<u8>>>,
-}
-
-const MAX_LSX: usize = 4;
-
-macro_rules! empty_slot {
-    () => { LsxSlot {
-        socket:  AtomicUsize::new(usize::MAX),
-        state:   AtomicUsize::new(0),
-        seed:    AtomicUsize::new(0),
-        pending: Mutex::new(None),
-    }};
-}
-
-static POOL: [LsxSlot; MAX_LSX] = [
-    empty_slot!(), empty_slot!(), empty_slot!(), empty_slot!(),
-];
-
-fn find_slot(s: usize) -> Option<&'static LsxSlot> {
-    POOL.iter().find(|sl| sl.socket.load(Ordering::Relaxed) == s)
-}
-
-// ─── public API ──────────────────────────────────────────────────────────────
-
-pub fn set_lsx_socket(s: usize) {
-    // Try to reuse an existing slot for this socket first
-    if find_slot(s).is_some() { return; }
-    // Find a free slot
-    for sl in &POOL {
-        if sl.socket.load(Ordering::Relaxed) == usize::MAX {
-            sl.state.store(0, Ordering::Relaxed);
-            sl.seed.store(0, Ordering::Relaxed);
-            if let Ok(mut g) = sl.pending.lock() { *g = None; }
-            sl.socket.store(s, Ordering::Relaxed);
-            crate::write_log(&format!("lsx: socket registered s={s}\n"));
-            return;
-        }
-    }
-    // All slots full — evict the first one
-    let sl = &POOL[0];
-    sl.state.store(0, Ordering::Relaxed);
-    sl.seed.store(0, Ordering::Relaxed);
-    if let Ok(mut g) = sl.pending.lock() { *g = None; }
-    sl.socket.store(s, Ordering::Relaxed);
-    crate::write_log(&format!("lsx: socket registered s={s} (evicted old slot)\n"));
-}
-
-pub fn is_lsx(s: usize) -> bool {
-    find_slot(s).is_some()
-}
-
-pub fn current_socket() -> usize {
-    // Return any active LSX socket (used by select hook if needed)
-    POOL.iter()
-        .map(|sl| sl.socket.load(Ordering::Relaxed))
-        .find(|&s| s != usize::MAX)
-        .unwrap_or(usize::MAX)
-}
-
-const GREETING_KEY: &str = "cacf897a20b6d612ad0c05e011df52bb";
-const AES_KEY: [u8; 16] = [0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15];
-
-pub unsafe fn on_recv(s: usize, buf: *mut u8, len: i32) -> i32 {
-    let sl = match find_slot(s) { Some(x) => x, None => return -1 };
-    let state = sl.state.load(Ordering::Relaxed);
-    crate::write_log(&format!("lsx: recv s={s} state={state}\n"));
-
-    let payload: Vec<u8> = match state {
-        0 => {
-            let xml = format!(
-                "<LSX>\r\n    <Event sender=\"EALS\">\r\n        <Challenge build=\"release\" key=\"{GREETING_KEY}\" version=\"10,5,30,15625\" />\r\n    </Event>\r\n</LSX>\0"
-            );
-            sl.state.store(1, Ordering::Relaxed);
-            xml.into_bytes()
-        }
-        _ => {
-            let mut guard = sl.pending.lock().unwrap_or_else(|e| e.into_inner());
-            match guard.take() {
-                Some(pb) => pb,
-                None => {
-                    // No pending data — return 0.
-                    // For the state-1 probe recv (FIFA checking if there is more
-                    // greeting data), 0 is the correct "no more data" signal and
-                    // FIFA proceeds to send the ChallengeResponse.
-                    return 0;
-                }
-            }
-        }
-    };
-
-    let n = payload.len().min(len as usize);
-    core::ptr::copy_nonoverlapping(payload.as_ptr(), buf, n);
-    crate::write_log(&format!("lsx: recv -> {n} bytes\n"));
-    n as i32
-}
-
-pub unsafe fn on_send(s: usize, buf: *const u8, len: i32) -> i32 {
-    let sl = match find_slot(s) { Some(x) => x, None => return len };
-    let state = sl.state.load(Ordering::Relaxed);
-    let data = core::slice::from_raw_parts(buf, len as usize);
-    let text = core::str::from_utf8(data).unwrap_or("(binary)");
-    crate::write_log(&format!("lsx: send s={s} state={state} len={len} data={}\n",
-        &text[..text.len().min(300)]));
-
-    let response = match state {
-        1 => handle_challenge(sl, data),
-        st => handle_request(sl, data, st),
-    };
-
-    if let Some(payload) = response {
-        let mut guard = sl.pending.lock().unwrap_or_else(|e| e.into_inner());
-        *guard = Some(payload);
-    }
-    sl.state.fetch_add(1, Ordering::Relaxed);
-    len
-}
-
-// ─── handshake ───────────────────────────────────────────────────────────────
-
-fn handle_challenge(sl: &LsxSlot, raw: &[u8]) -> Option<Vec<u8>> {
-    let text = core::str::from_utf8(raw).unwrap_or("").trim_end_matches('\0');
-    let parts: Vec<&str> = text.split('"').collect();
-    let id  = parts.get(3).copied().unwrap_or("1");
-    let key = parts.get(7).copied().unwrap_or("");
-    crate::write_log(&format!("lsx: challenge id={id} key={key}\n"));
-
-    let our_response = make_challenge_response(key);
-    let seed = compute_seed(&our_response);
-    sl.seed.store(seed as usize, Ordering::Relaxed);
-    crate::write_log(&format!("lsx: response={our_response} seed={seed}\n"));
-
-    let xml = format!(
-        "<LSX>\r\n    <Response id=\"{id}\" sender=\"EALS\">\r\n        <ChallengeAccepted response=\"{our_response}\" />\r\n    </Response>\r\n</LSX>\0"
-    );
-    Some(xml.into_bytes())
-}
-
-fn compute_seed(hex: &str) -> u16 {
-    let b0 = u8::from_str_radix(&hex[..2.min(hex.len())], 16).unwrap_or(0);
-    let b1 = u8::from_str_radix(&hex[2..4.min(hex.len())], 16).unwrap_or(0);
-    ((b0 as u16) << 8) | (b1 as u16)
-}
-
-fn handle_request(sl: &LsxSlot, raw: &[u8], _state: usize) -> Option<Vec<u8>> {
-    let seed = sl.seed.load(Ordering::Relaxed) as u16;
-    let text = core::str::from_utf8(raw).unwrap_or("").trim_end_matches('\0');
-
-    let decrypted = lsx_decrypt(text, seed);
-    crate::write_log(&format!("lsx: request decrypted={}\n", &decrypted[..decrypted.len().min(300)]));
-
-    let response_xml = dispatch_request(decrypted.trim());
-    crate::write_log(&format!("lsx: response={}\n", &response_xml[..response_xml.len().min(300)]));
-
-    let encrypted = lsx_encrypt(&response_xml, seed);
-    let payload = format!("{encrypted}\0");
-    Some(payload.into_bytes())
-}
-
-// ─── session dispatcher ───────────────────────────────────────────────────────
-
-pub fn dispatch(xml: &str) -> String { dispatch_request(xml) }
-
-fn dispatch_request(xml: &str) -> String {
-    let parts: Vec<&str> = xml.split('"').collect();
-    let id = parts.get(3).copied().unwrap_or("1");
-    let req_type = parts.get(4).copied().unwrap_or("");
-    crate::write_log(&format!("lsx: dispatch id={id} type={req_type}\n"));
-
-    match req_type {
-        "><GetConfig version=" => get_config(id),
-        "><GetAuthCode ClientId=" | "><GetAuthCode UserId=" => get_auth_code(id),
-        "><GetInternetConnectedState version=" => get_internet_state(id),
-        "><GetProfile index=" => get_profile(id),
-        "><GetSetting SettingId=" => {
-            let setting = parts.get(5).copied().unwrap_or("");
-            get_setting(id, setting)
-        }
-        "><QueryEntitlements UserId=" => query_entitlements(id),
-        "><RequestLicense UserId=" => request_license(id),
-        "><QueryContent UserId=" => query_content(id),
-        "><GetBlockList version=" => get_block_list(id),
-        "><QueryFriends UserId=" => query_friends(id),
-        "><QueryPresence UserId=" => query_presence(id),
-        "><SetPresence UserId=" => set_presence(id),
-        "><GetPresenceVisibility UserId=" => get_presence_visibility(id),
-        "><GetWalletBalance UserId=" => get_wallet_balance(id),
-        "><GetAllGameInfo version=" => get_all_game_info(id),
-        _ => {
-            crate::write_log(&format!("lsx: UNKNOWN type: {req_type}\n"));
-            format!("<LSX><Response id=\"{id}\" sender=\"EbisuSDK\"><Ok /></Response></LSX>\0")
-        }
-    }
-}
-
-// ─── LSX response templates ───────────────────────────────────────────────────
-
-fn get_config(id: &str) -> String {
-    format!(r#"<LSX>
-    <Response id="{id}" sender="EbisuSDK">
-        <GetConfigResponse>
-            <Service Facility="SDK" Name="EbisuSDK" />
-            <Service Facility="PROFILE" Name="EbisuSDK" />
-            <Service Facility="PRESENCE" Name="XMPP" />
-            <Service Facility="FRIENDS" Name="XMPP" />
-            <Service Facility="COMMERCE" Name="Commerce" />
-            <Service Facility="RECENTPLAYER" Name="EbisuSDK" />
-            <Service Facility="IGO" Name="EbisuSDK" />
-            <Service Facility="MISC" Name="EbisuSDK" />
-            <Service Facility="LOGIN" Name="EALS" />
-            <Service Facility="UTILITY" Name="Utility" />
-            <Service Facility="XMPP" Name="XMPP" />
-            <Service Facility="CHAT" Name="XMPP" />
-            <Service Facility="IGO_EVENT" Name="EbisuSDK" />
-            <Service Facility="EALS_EVENTS" Name="EALS" />
-            <Service Facility="LOGIN_EVENT" Name="EbisuSDK" />
-            <Service Facility="INVITE_EVENT" Name="XMPP" />
-            <Service Facility="PROFILE_EVENT" Name="EbisuSDK" />
-            <Service Facility="PRESENCE_EVENT" Name="XMPP" />
-            <Service Facility="FRIENDS_EVENT" Name="XMPP" />
-            <Service Facility="COMMERCE_EVENT" Name="Commerce" />
-            <Service Facility="CHAT_EVENT" Name="XMPP" />
-            <Service Facility="DOWNLOAD_EVENT" Name="EbisuSDK" />
-            <Service Facility="PERMISSION" Name="EbisuSDK" />
-            <Service Facility="RESOURCES" Name="EbisuSDK" />
-            <Service Facility="BLOCKED_USERS" Name="EbisuSDK" />
-            <Service Facility="BLOCKED_USER_EVENT" Name="EbisuSDK" />
-            <Service Facility="GET_USERID" Name="EbisuSDK" />
-            <Service Facility="ONLINE_STATUS_EVENT" Name="EbisuSDK" />
-            <Service Facility="ACHIEVEMENT" Name="EbisuSDK" />
-            <Service Facility="ACHIEVEMENT_EVENT" Name="EbisuSDK" />
-            <Service Facility="BROADCAST_EVENT" Name="EbisuSDK" />
-            <Service Facility="PROGRESSIVE_INSTALLATION" Name="PI" />
-            <Service Facility="PROGRESSIVE_INSTALLATION_EVENT" Name="PI" />
-            <Service Facility="CONTENT" Name="EbisuSDK" />
-        </GetConfigResponse>
-    </Response>
-</LSX>"#)
-}
-
-fn get_auth_code(id: &str) -> String {
-    format!(r#"<LSX>
-    <Response id="{id}" sender="Utility">
-        <AuthCode value="OpenFUT_fake_auth_code_v1" />
-    </Response>
-</LSX>"#)
-}
-
-fn get_internet_state(id: &str) -> String {
-    format!(r#"<LSX>
-    <Response id="{id}" sender="Utility">
-        <InternetConnectedState connected="1" />
-    </Response>
-</LSX>"#)
-}
-
-fn get_profile(id: &str) -> String {
-    format!(r#"<LSX>
-  <Response id="{id}" sender="EbisuSDK">
-    <GetProfileResponse PersonaId="1000000000001" Persona="OpenFUT_Player" Country="US" GeoCountry="US"
-        UserIndex="0" IsTrialSubscriber="false" AvatarId="1"
-        IsUnderAge="false" IsSubscriber="false" IsSteamSubscriber="false" SubscriberLevel="2"
-        CommerceCurrency="USD" UserId="2000000000001" CommerceCountry="US" />
-  </Response>
-</LSX>"#)
-}
-
-fn get_setting(id: &str, setting: &str) -> String {
-    let value = match setting { "ENVIRONMENT" => "production", _ => "false" };
-    format!(r#"<LSX>
-    <Response id="{id}" sender="EbisuSDK">
-        <GetSettingResponse Setting="{value}" />
-    </Response>
-</LSX>"#)
-}
-
-fn query_entitlements(id: &str) -> String {
-    format!(r#"<LSX>
-    <Response id="{id}" sender="Commerce">
-        <QueryEntitlementsResponse>
-            <Entitlements ItemId="Origin.OFR.50.0004658" Type="ONLINE_ACCESS"
-                EntitlementId="1021747550001" EntitlementTag="ONLINE_ACCESS"
-                Group="FIFA23PC" ResourceId="" UseCount="0"
-                Expiration="0000-00-00T00:00:00" GrantDate="2022-09-30T00:00:00"
-                LastModifiedDate="2022-09-30T00:00:00" Version="0" />
-            <Entitlements ItemId="Origin.OFR.50.0004658" Type="DEFAULT"
-                EntitlementId="1021747550002" EntitlementTag="ONLINE_ACCESS"
-                Group="FIFA23PC" ResourceId="" UseCount="0"
-                Expiration="0000-00-00T00:00:00" GrantDate="2022-09-30T00:00:00"
-                LastModifiedDate="2022-09-30T00:00:00" Version="0" />
-        </QueryEntitlementsResponse>
-    </Response>
-</LSX>"#)
-}
-
-fn request_license(id: &str) -> String {
-    format!(r#"<LSX>
-    <Response sender="EbisuSDK" id="{id}">
-        <RequestLicenseResponse License="OpenFUT_fake_license_v1" />
-    </Response>
-</LSX>"#)
-}
-
-fn query_content(id: &str) -> String {
-    format!(r#"<LSX>
-    <Response id="{id}" sender="EbisuSDK">
-        <QueryContentResponse>
-            <Content Gamestate="READY_TO_PLAY" progressValue="0"
-                contentID="Origin.OFR.50.0004658"
-                installedVersion="1.0.0.0" availableVersion="1.0.0.0"
-                displayName="FIFA 23" />
-        </QueryContentResponse>
-    </Response>
-</LSX>"#)
-}
-
-fn get_block_list(id: &str) -> String {
-    format!(r#"<LSX><Response id="{id}" sender="EbisuSDK"><GetBlockListResponse /></Response></LSX>"#)
-}
-
-fn query_friends(id: &str) -> String {
-    format!(r#"<LSX><Response id="{id}" sender="XMPP"><QueryFriendsResponse /></Response></LSX>"#)
-}
-
-fn query_presence(id: &str) -> String {
-    format!(r#"<LSX><Response id="{id}" sender="XMPP"><QueryPresenceResponse UserId="2000000000001" PersonaId="1000000000001" /></Response></LSX>"#)
-}
-
-fn set_presence(id: &str) -> String {
-    format!(r#"<LSX><Response id="{id}" sender="XMPP"><SetPresenceResponse /></Response></LSX>"#)
-}
-
-fn get_presence_visibility(id: &str) -> String {
-    format!(r#"<LSX><Response id="{id}" sender="EbisuSDK"><GetPresenceVisibilityResponse Visibility="FRIENDS" /></Response></LSX>"#)
-}
-
-fn get_wallet_balance(id: &str) -> String {
-    format!(r#"<LSX><Response id="{id}" sender="Commerce"><GetWalletBalanceResponse Balance="0" Currency="USD" /></Response></LSX>"#)
-}
-
-fn get_all_game_info(id: &str) -> String {
-    format!(r#"<LSX><Response id="{id}" sender="EbisuSDK"><GetAllGameInfoResponse /></Response></LSX>"#)
-}
-
-// ─── AES-128-ECB (pure Rust) ──────────────────────────────────────────────────
-
-#[rustfmt::skip]
-const SBOX: [u8; 256] = [
-    0x63,0x7c,0x77,0x7b,0xf2,0x6b,0x6f,0xc5,0x30,0x01,0x67,0x2b,0xfe,0xd7,0xab,0x76,
-    0xca,0x82,0xc9,0x7d,0xfa,0x59,0x47,0xf0,0xad,0xd4,0xa2,0xaf,0x9c,0xa4,0x72,0xc0,
-    0xb7,0xfd,0x93,0x26,0x36,0x3f,0xf7,0xcc,0x34,0xa5,0xe5,0xf1,0x71,0xd8,0x31,0x15,
-    0x04,0xc7,0x23,0xc3,0x18,0x96,0x05,0x9a,0x07,0x12,0x80,0xe2,0xeb,0x27,0xb2,0x75,
-    0x09,0x83,0x2c,0x1a,0x1b,0x6e,0x5a,0xa0,0x52,0x3b,0xd6,0xb3,0x29,0xe3,0x2f,0x84,
-    0x53,0xd1,0x00,0xed,0x20,0xfc,0xb1,0x5b,0x6a,0xcb,0xbe,0x39,0x4a,0x4c,0x58,0xcf,
-    0xd0,0xef,0xaa,0xfb,0x43,0x4d,0x33,0x85,0x45,0xf9,0x02,0x7f,0x50,0x3c,0x9f,0xa8,
-    0x51,0xa3,0x40,0x8f,0x92,0x9d,0x38,0xf5,0xbc,0xb6,0xda,0x21,0x10,0xff,0xf3,0xd2,
-    0xcd,0x0c,0x13,0xec,0x5f,0x97,0x44,0x17,0xc4,0xa7,0x7e,0x3d,0x64,0x5d,0x19,0x73,
-    0x60,0x81,0x4f,0xdc,0x22,0x2a,0x90,0x88,0x46,0xee,0xb8,0x14,0xde,0x5e,0x0b,0xdb,
-    0xe0,0x32,0x3a,0x0a,0x49,0x06,0x24,0x5c,0xc2,0xd3,0xac,0x62,0x91,0x95,0xe4,0x79,
-    0xe7,0xc8,0x37,0x6d,0x8d,0xd5,0x4e,0xa9,0x6c,0x56,0xf4,0xea,0x65,0x7a,0xae,0x08,
-    0xba,0x78,0x25,0x2e,0x1c,0xa6,0xb4,0xc6,0xe8,0xdd,0x74,0x1f,0x4b,0xbd,0x8b,0x8a,
-    0x70,0x3e,0xb5,0x66,0x48,0x03,0xf6,0x0e,0x61,0x35,0x57,0xb9,0x86,0xc1,0x1d,0x9e,
-    0xe1,0xf8,0x98,0x11,0x69,0xd9,0x8e,0x94,0x9b,0x1e,0x87,0xe9,0xce,0x55,0x28,0xdf,
-    0x8c,0xa1,0x89,0x0d,0xbf,0xe6,0x42,0x68,0x41,0x99,0x2d,0x0f,0xb0,0x54,0xbb,0x16,
-];
-
-fn xtime(a: u8) -> u8 { if a & 0x80 != 0 { (a << 1) ^ 0x1b } else { a << 1 } }
-fn mul(mut a: u8, mut b: u8) -> u8 {
-    let mut r = 0u8;
-    while b > 0 { if b & 1 != 0 { r ^= a; } a = xtime(a); b >>= 1; }
-    r
-}
-
-fn sub_bytes(s: &mut [u8; 16]) { for b in s.iter_mut() { *b = SBOX[*b as usize]; } }
-fn shift_rows(s: &mut [u8; 16]) {
-    let t = s[1]; s[1]=s[5]; s[5]=s[9]; s[9]=s[13]; s[13]=t;
-    s.swap(2,10); s.swap(6,14);
-    let t = s[15]; s[15]=s[11]; s[11]=s[7]; s[7]=s[3]; s[3]=t;
-}
-fn mix_col(s: &mut [u8; 16], c: usize) {
-    let (a,b,c2,d) = (s[c],s[c+4],s[c+8],s[c+12]);
-    s[c]    = mul(2,a)^mul(3,b)^c2^d;
-    s[c+4]  = a^mul(2,b)^mul(3,c2)^d;
-    s[c+8]  = a^b^mul(2,c2)^mul(3,d);
-    s[c+12] = mul(3,a)^b^c2^mul(2,d);
-}
-fn mix_columns(s: &mut [u8; 16]) { for c in 0..4 { mix_col(s,c); } }
-fn add_round_key(s: &mut [u8; 16], rk: &[u8; 16]) { for i in 0..16 { s[i] ^= rk[i]; } }
-
-fn expand_key(key: &[u8; 16]) -> [[u8; 16]; 11] {
-    let rcon: [u8; 10] = [0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80,0x1b,0x36];
-    let mut w = [[0u8; 4]; 44];
-    for i in 0..4 { w[i] = [key[4*i],key[4*i+1],key[4*i+2],key[4*i+3]]; }
-    for i in 4..44 {
-        let mut t = w[i-1];
-        if i % 4 == 0 {
-            t.rotate_left(1);
-            for b in &mut t { *b = SBOX[*b as usize]; }
-            t[0] ^= rcon[i/4-1];
-        }
-        w[i] = [w[i-4][0]^t[0], w[i-4][1]^t[1], w[i-4][2]^t[2], w[i-4][3]^t[3]];
-    }
-    let mut rk = [[0u8; 16]; 11];
-    for r in 0..11 { for c in 0..4 { rk[r][4*c..4*c+4].copy_from_slice(&w[r*4+c]); } }
-    rk
-}
-
-fn aes_block_encrypt(block: &[u8; 16], rk: &[[u8; 16]; 11]) -> [u8; 16] {
-    let mut s = *block;
-    add_round_key(&mut s, &rk[0]);
-    for r in 1..10 { sub_bytes(&mut s); shift_rows(&mut s); mix_columns(&mut s); add_round_key(&mut s, &rk[r]); }
-    sub_bytes(&mut s); shift_rows(&mut s); add_round_key(&mut s, &rk[10]);
-    s
-}
-
-fn aes_ecb_pkcs7_encrypt(key: &[u8; 16], plaintext: &[u8]) -> Vec<u8> {
-    let rk = expand_key(key);
-    let pad = 16 - (plaintext.len() % 16);
-    let mut padded = plaintext.to_vec();
-    padded.resize(plaintext.len() + pad, pad as u8);
-    let mut out = Vec::with_capacity(padded.len());
-    for chunk in padded.chunks(16) {
-        let mut b = [0u8; 16]; b.copy_from_slice(chunk);
-        out.extend_from_slice(&aes_block_encrypt(&b, &rk));
-    }
-    out
-}
-
-#[rustfmt::skip]
-const INV_SBOX: [u8; 256] = [
-    0x52,0x09,0x6a,0xd5,0x30,0x36,0xa5,0x38,0xbf,0x40,0xa3,0x9e,0x81,0xf3,0xd7,0xfb,
-    0x7c,0xe3,0x39,0x82,0x9b,0x2f,0xff,0x87,0x34,0x8e,0x43,0x44,0xc4,0xde,0xe9,0xcb,
-    0x54,0x7b,0x94,0x32,0xa6,0xc2,0x23,0x3d,0xee,0x4c,0x95,0x0b,0x42,0xfa,0xc3,0x4e,
-    0x08,0x2e,0xa1,0x66,0x28,0xd9,0x24,0xb2,0x76,0x5b,0xa2,0x49,0x6d,0x8b,0xd1,0x25,
-    0x72,0xf8,0xf6,0x64,0x86,0x68,0x98,0x16,0xd4,0xa4,0x5c,0xcc,0x5d,0x65,0xb6,0x92,
-    0x6c,0x70,0x48,0x50,0xfd,0xed,0xb9,0xda,0x5e,0x15,0x46,0x57,0xa7,0x8d,0x9d,0x84,
-    0x90,0xd8,0xab,0x00,0x8c,0xbc,0xd3,0x0a,0xf7,0xe4,0x58,0x05,0xb8,0xb3,0x45,0x06,
-    0xd0,0x2c,0x1e,0x8f,0xca,0x3f,0x0f,0x02,0xc1,0xaf,0xbd,0x03,0x01,0x13,0x8a,0x6b,
-    0x3a,0x91,0x11,0x41,0x4f,0x67,0xdc,0xea,0x97,0xf2,0xcf,0xce,0xf0,0xb4,0xe6,0x73,
-    0x96,0xac,0x74,0x22,0xe7,0xad,0x35,0x85,0xe2,0xf9,0x37,0xe8,0x1c,0x75,0xdf,0x6e,
-    0x47,0xf1,0x1a,0x71,0x1d,0x29,0xc5,0x89,0x6f,0xb7,0x62,0x0e,0xaa,0x18,0xbe,0x1b,
-    0xfc,0x56,0x3e,0x4b,0xc6,0xd2,0x79,0x20,0x9a,0xdb,0xc0,0xfe,0x78,0xcd,0x5a,0xf4,
-    0x1f,0xdd,0xa8,0x33,0x88,0x07,0xc7,0x31,0xb1,0x12,0x10,0x59,0x27,0x80,0xec,0x5f,
-    0x60,0x51,0x7f,0xa9,0x19,0xb5,0x4a,0x0d,0x2d,0xe5,0x7a,0x9f,0x93,0xc9,0x9c,0xef,
-    0xa0,0xe0,0x3b,0x4d,0xae,0x2a,0xf5,0xb0,0xc8,0xeb,0xbb,0x3c,0x83,0x53,0x99,0x61,
-    0x17,0x2b,0x04,0x7e,0xba,0x77,0xd6,0x26,0xe1,0x69,0x14,0x63,0x55,0x21,0x0c,0x7d,
-];
-
-fn inv_sub_bytes(s: &mut [u8; 16]) { for b in s.iter_mut() { *b = INV_SBOX[*b as usize]; } }
-fn inv_shift_rows(s: &mut [u8; 16]) {
-    let t = s[13]; s[13]=s[9]; s[9]=s[5]; s[5]=s[1]; s[1]=t;
-    s.swap(2,10); s.swap(6,14);
-    let t = s[3]; s[3]=s[7]; s[7]=s[11]; s[11]=s[15]; s[15]=t;
-}
-fn inv_mix_col(s: &mut [u8; 16], c: usize) {
-    let (a,b,c2,d) = (s[c],s[c+4],s[c+8],s[c+12]);
-    s[c]    = mul(0x0e,a)^mul(0x0b,b)^mul(0x0d,c2)^mul(0x09,d);
-    s[c+4]  = mul(0x09,a)^mul(0x0e,b)^mul(0x0b,c2)^mul(0x0d,d);
-    s[c+8]  = mul(0x0d,a)^mul(0x09,b)^mul(0x0e,c2)^mul(0x0b,d);
-    s[c+12] = mul(0x0b,a)^mul(0x0d,b)^mul(0x09,c2)^mul(0x0e,d);
-}
-fn inv_mix_columns(s: &mut [u8; 16]) { for c in 0..4 { inv_mix_col(s,c); } }
-
-fn aes_ecb_decrypt_nopad(key: &[u8; 16], data: &[u8]) -> Vec<u8> {
-    let rk = expand_key(key);
-    let mut out = Vec::with_capacity(data.len());
-    for chunk in data.chunks(16) {
-        if chunk.len() < 16 { break; }
-        let mut b = [0u8; 16]; b.copy_from_slice(chunk);
-        add_round_key(&mut b, &rk[10]);
-        inv_shift_rows(&mut b); inv_sub_bytes(&mut b);
-        for r in (1..10).rev() {
-            add_round_key(&mut b, &rk[r]);
-            inv_mix_columns(&mut b); inv_shift_rows(&mut b); inv_sub_bytes(&mut b);
-        }
-        add_round_key(&mut b, &rk[0]);
-        out.extend_from_slice(&b);
-    }
-    if let Some(&pad) = out.last() {
-        let pad = pad as usize;
-        if pad <= 16 && out.len() >= pad { out.truncate(out.len() - pad); }
-    }
-    out
-}
-
-// ─── CRandom ─────────────────────────────────────────────────────────────────
-
-struct CRandom { seed: u32 }
-impl CRandom {
-    fn new() -> Self { Self { seed: 0 } }
-    fn seed_with(&mut self, s: u32) { self.seed = s; }
-    fn rand(&mut self) -> u32 {
-        self.seed = self.seed.wrapping_mul(214013).wrapping_add(2531011);
-        (self.seed >> 16) & 0xFFFF
-    }
-}
-
-fn get_lsx_key(seed: u16) -> [u8; 16] {
-    let mut rng = CRandom::new();
-    rng.seed_with(7);
-    let next = rng.rand();
-    rng.seed_with(next.wrapping_add(seed as u32));
-    let mut k = [0u8; 16];
-    for b in &mut k { *b = rng.rand() as u8; }
-    k
-}
-
-// ─── session encrypt/decrypt ─────────────────────────────────────────────────
-
-fn hex_to_bytes(s: &str) -> Vec<u8> {
-    let s: String = s.chars().filter(|c| c.is_ascii_hexdigit()).collect();
-    if s.len() % 2 != 0 { return Vec::new(); }
-    (0..s.len()/2).filter_map(|i| u8::from_str_radix(&s[2*i..2*i+2], 16).ok()).collect()
-}
-
-fn bytes_to_hex(b: &[u8]) -> String {
-    b.iter().map(|x| format!("{x:02x}")).collect()
-}
-
-pub fn lsx_decrypt(hex_data: &str, seed: u16) -> String {
-    let key = get_lsx_key(seed);
-    let ct = hex_to_bytes(hex_data);
-    if ct.is_empty() { return String::new(); }
-    let plain = aes_ecb_decrypt_nopad(&key, &ct);
-    String::from_utf8_lossy(&plain).trim_matches('\0').to_string()
-}
-
-pub fn lsx_encrypt(text: &str, seed: u16) -> String {
-    let key = get_lsx_key(seed);
-    bytes_to_hex(&aes_ecb_pkcs7_encrypt(&key, text.as_bytes()))
-}
-
-pub fn make_challenge_response(key: &str) -> String {
-    bytes_to_hex(&aes_ecb_pkcs7_encrypt(&AES_KEY, key.as_bytes()))
-}

openfut-hook/src/origin_spy.rs

@@ -1,137 +0,0 @@
-/// Hooks RegQueryValueExA/W and OpenMutexA/W to log what the Origin SDK is checking.
-use std::sync::OnceLock;
-
-type RegQueryValueExAFn = unsafe extern "system" fn(
-    hkey: isize,
-    lpvaluename: *const u8,
-    lpreserved: *mut u32,
-    lptype: *mut u32,
-    lpdata: *mut u8,
-    lpcbdata: *mut u32,
-) -> i32;
-
-type RegQueryValueExWFn = unsafe extern "system" fn(
-    hkey: isize,
-    lpvaluename: *const u16,
-    lpreserved: *mut u32,
-    lptype: *mut u32,
-    lpdata: *mut u8,
-    lpcbdata: *mut u32,
-) -> i32;
-
-type OpenMutexAFn = unsafe extern "system" fn(u32, i32, *const u8) -> isize;
-type OpenMutexWFn = unsafe extern "system" fn(u32, i32, *const u16) -> isize;
-
-static REAL_REG_A: OnceLock<RegQueryValueExAFn> = OnceLock::new();
-static REAL_REG_W: OnceLock<RegQueryValueExWFn> = OnceLock::new();
-static REAL_MUTEX_A: OnceLock<OpenMutexAFn> = OnceLock::new();
-static REAL_MUTEX_W: OnceLock<OpenMutexWFn> = OnceLock::new();
-
-pub fn set_real_reg_a(f: RegQueryValueExAFn) {
-    let _ = REAL_REG_A.set(f);
-}
-pub fn set_real_reg_w(f: RegQueryValueExWFn) {
-    let _ = REAL_REG_W.set(f);
-}
-pub fn set_real_mutex_a(f: OpenMutexAFn) {
-    let _ = REAL_MUTEX_A.set(f);
-}
-pub fn set_real_mutex_w(f: OpenMutexWFn) {
-    let _ = REAL_MUTEX_W.set(f);
-}
-
-fn narrow_to_string(p: *const u8) -> String {
-    if p.is_null() {
-        return "(null)".into();
-    }
-    let bytes = unsafe { std::ffi::CStr::from_ptr(p as *const i8) };
-    bytes.to_string_lossy().into_owned()
-}
-
-fn wide_to_string(p: *const u16) -> String {
-    if p.is_null() {
-        return "(null)".into();
-    }
-    let mut len = 0usize;
-    unsafe {
-        while *p.add(len) != 0 {
-            len += 1;
-        }
-    }
-    String::from_utf16_lossy(unsafe { std::slice::from_raw_parts(p, len) })
-}
-
-fn is_interesting(name: &str) -> bool {
-    name.contains("LSX")
-        || name.contains("Origin")
-        || name.contains("EAL")
-        || name.contains("Client")
-        || name.contains("lsx")
-        || name.contains("Port")
-        || name.contains("EA")
-        || name.contains("Connection")
-}
-
-pub unsafe extern "system" fn hooked_reg_query_a(
-    hkey: isize,
-    lpvaluename: *const u8,
-    lpreserved: *mut u32,
-    lptype: *mut u32,
-    lpdata: *mut u8,
-    lpcbdata: *mut u32,
-) -> i32 {
-    let name = narrow_to_string(lpvaluename);
-    let real = REAL_REG_A.get().copied().unwrap();
-    let ret = real(hkey, lpvaluename, lpreserved, lptype, lpdata, lpcbdata);
-    if is_interesting(&name) {
-        crate::write_log(&format!("origin_spy: RegQueryValueExA({name}) → {ret}\n"));
-    }
-    ret
-}
-
-pub unsafe extern "system" fn hooked_reg_query_w(
-    hkey: isize,
-    lpvaluename: *const u16,
-    lpreserved: *mut u32,
-    lptype: *mut u32,
-    lpdata: *mut u8,
-    lpcbdata: *mut u32,
-) -> i32 {
-    let name = wide_to_string(lpvaluename);
-    let real = REAL_REG_W.get().copied().unwrap();
-    let ret = real(hkey, lpvaluename, lpreserved, lptype, lpdata, lpcbdata);
-    if is_interesting(&name) {
-        crate::write_log(&format!("origin_spy: RegQueryValueExW({name}) → {ret}\n"));
-    }
-    ret
-}
-
-pub unsafe extern "system" fn hooked_open_mutex_a(
-    dwdesiredaccess: u32,
-    binherithandle: i32,
-    lpmutexname: *const u8,
-) -> isize {
-    let name = narrow_to_string(lpmutexname);
-    let real = REAL_MUTEX_A.get().copied().unwrap();
-    let handle = real(dwdesiredaccess, binherithandle, lpmutexname);
-    crate::write_log(&format!(
-        "origin_spy: OpenMutexA({name}) → {}\n",
-        if handle == 0 { "NOT_FOUND" } else { "FOUND" }
-    ));
-    handle
-}
-
-pub unsafe extern "system" fn hooked_open_mutex_w(
-    dwdesiredaccess: u32,
-    binherithandle: i32,
-    lpmutexname: *const u16,
-) -> isize {
-    let name = wide_to_string(lpmutexname);
-    let real = REAL_MUTEX_W.get().copied().unwrap();
-    let handle = real(dwdesiredaccess, binherithandle, lpmutexname);
-    crate::write_log(&format!(
-        "origin_spy: OpenMutexW({name}) → {}\n",
-        if handle == 0 { "NOT_FOUND" } else { "FOUND" }
-    ));
-    handle
-}

openfut-hook/src/patch_mem.rs

@@ -0,0 +1,358 @@
+//! Generic, fail-closed byte-patch primitive shared by per-game compatibility
+//! patch tables (currently FIFA 17's TLS/store gates in [`crate::fifa17_tls`]).
+//!
+//! The decision logic is expressed against the [`Mem`] trait rather than raw
+//! process memory, so every outcome — ORIGINAL / ALREADY_PATCHED / MISMATCH and
+//! the write/verify path — is unit-testable on the host without a live client.
+//! [`WinMem`] is the in-process Windows implementation used at runtime.
+//!
+//! FAIL-CLOSED INVARIANT: a site is written only when its live bytes are *exactly*
+//! the known original. Already-patched is an idempotent no-op; anything else is
+//! reported and left untouched — an unrecognised or not-yet-unpacked build is
+//! never blindly overwritten.
+
+/// Longest patch payload across all tables (FIFA17 GATE1 is 6 bytes). Sizes the
+/// fixed stack buffers so no slicing panic is reachable from the patch logic.
+pub const MAX_PATCH_LEN: usize = 6;
+
+/// Byte-level access to the target's address space.
+pub trait Mem {
+    /// Fill `buf` from `addr`. `false` = not readable yet (page uncommitted /
+    /// module not mapped / not unpacked) — the caller waits, it is not an error.
+    fn read(&self, addr: usize, buf: &mut [u8]) -> bool;
+    /// Write `data` at `addr`. `false` = the write could not be performed.
+    fn write(&mut self, addr: usize, data: &[u8]) -> bool;
+}
+
+/// Fail-closed classification of live bytes against a site's original/replacement.
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum PatchState {
+    /// Live bytes are the known original — safe to patch.
+    Original,
+    /// Live bytes already equal the replacement — idempotent.
+    AlreadyPatched,
+    /// Neither — unrecognised/not-yet-ready build; must be left untouched.
+    Mismatch,
+}
+
+/// Pure classification (no memory access).
+pub fn classify(cur: &[u8], orig: &[u8], patch: &[u8]) -> PatchState {
+    if cur == patch {
+        PatchState::AlreadyPatched
+    } else if cur == orig {
+        PatchState::Original
+    } else {
+        PatchState::Mismatch
+    }
+}
+
+/// Outcome of a checked patch attempt at one site.
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum ApplyOutcome {
+    /// Bytes were the original and were written and re-read as the replacement.
+    Applied,
+    /// Bytes already equalled the replacement; nothing written.
+    AlreadyPatched,
+    /// Bytes were neither original nor replacement; nothing written.
+    Mismatch,
+    /// Bytes could not be read yet (module/page not available) — retry later.
+    NotReadable,
+    /// The write itself failed (protection change or copy).
+    WriteFailed,
+    /// Wrote, but the re-read did not equal the replacement.
+    VerifyFailed,
+}
+
+impl ApplyOutcome {
+    /// Whether the site now holds the replacement (freshly or already).
+    pub fn is_patched(self) -> bool {
+        matches!(self, ApplyOutcome::Applied | ApplyOutcome::AlreadyPatched)
+    }
+}
+
+/// Read → classify → (only on ORIGINAL) write → re-read verify. Never writes on
+/// MISMATCH; treats ALREADY_PATCHED as success. `orig`/`patch` must be equal,
+/// non-empty and within [`MAX_PATCH_LEN`].
+pub fn apply_checked<M: Mem>(mem: &mut M, addr: usize, orig: &[u8], patch: &[u8]) -> ApplyOutcome {
+    debug_assert_eq!(orig.len(), patch.len());
+    debug_assert!(!patch.is_empty() && patch.len() <= MAX_PATCH_LEN);
+    let n = patch.len();
+    let mut cur = [0u8; MAX_PATCH_LEN];
+    if !mem.read(addr, &mut cur[..n]) {
+        return ApplyOutcome::NotReadable;
+    }
+    match classify(&cur[..n], orig, patch) {
+        PatchState::AlreadyPatched => ApplyOutcome::AlreadyPatched,
+        PatchState::Mismatch => ApplyOutcome::Mismatch,
+        PatchState::Original => {
+            if !mem.write(addr, patch) {
+                return ApplyOutcome::WriteFailed;
+            }
+            let mut after = [0u8; MAX_PATCH_LEN];
+            if !mem.read(addr, &mut after[..n]) || &after[..n] != patch {
+                return ApplyOutcome::VerifyFailed;
+            }
+            ApplyOutcome::Applied
+        }
+    }
+}
+
+/// RVA of a static VA relative to an image's preferred base (pure).
+pub const fn rva(static_va: u64, preferred_base: u64) -> u64 {
+    static_va - preferred_base
+}
+/// Read and classify a site without writing (`None` = not readable yet). Used to
+/// decide multi-site patches (e.g. apply a gate pair only when both are original).
+pub fn read_state<M: Mem>(mem: &M, addr: usize, orig: &[u8], patch: &[u8]) -> Option<PatchState> {
+    let n = patch.len();
+    let mut cur = [0u8; MAX_PATCH_LEN];
+    if !mem.read(addr, &mut cur[..n]) {
+        return None;
+    }
+    Some(classify(&cur[..n], orig, patch))
+}
+
+/// Live in-process address of an image-relative site given the module's runtime base.
+pub const fn live_addr(module_base: usize, rva: u64) -> usize {
+    module_base + rva as usize
+}
+
+/// Lowercase, unseparated hex for diagnostics (matches the autopatch SKIP line).
+pub fn hex(bytes: &[u8]) -> String {
+    let mut s = String::with_capacity(bytes.len() * 2);
+    for b in bytes {
+        s.push(char::from_digit((b >> 4) as u32, 16).unwrap());
+        s.push(char::from_digit((b & 0xf) as u32, 16).unwrap());
+    }
+    s
+}
+
+// ─── In-process Windows memory (runtime only; not exercised by host tests) ──────
+
+/// In-process implementation of [`Mem`] over this (FIFA17.exe) address space.
+pub struct WinMem;
+
+impl Mem for WinMem {
+    fn read(&self, addr: usize, buf: &mut [u8]) -> bool {
+        unsafe { guarded_read(addr, buf) }
+    }
+    fn write(&mut self, addr: usize, data: &[u8]) -> bool {
+        unsafe { protected_write(addr, data) }
+    }
+}
+
+/// Resolve a loaded module's runtime base by name, or `None` if not loaded.
+pub unsafe fn module_base(name: *const u8) -> Option<usize> {
+    use windows_sys::Win32::System::LibraryLoader::GetModuleHandleA;
+    let h = GetModuleHandleA(name);
+    if h.is_null() {
+        None
+    } else {
+        Some(h as usize)
+    }
+}
+
+/// Read `buf.len()` bytes from `addr` only if the whole range is committed and
+/// readable (VirtualQuery-guarded), so a wrong base/RVA can never fault.
+unsafe fn guarded_read(addr: usize, buf: &mut [u8]) -> bool {
+    use windows_sys::Win32::System::Memory::{
+        VirtualQuery, MEMORY_BASIC_INFORMATION, MEM_COMMIT, PAGE_EXECUTE_READ,
+        PAGE_EXECUTE_READWRITE, PAGE_EXECUTE_WRITECOPY, PAGE_GUARD, PAGE_NOACCESS, PAGE_READONLY,
+        PAGE_READWRITE, PAGE_WRITECOPY,
+    };
+    if addr == 0 || buf.is_empty() {
+        return false;
+    }
+    let mut mbi: MEMORY_BASIC_INFORMATION = core::mem::zeroed();
+    let want = core::mem::size_of::<MEMORY_BASIC_INFORMATION>();
+    if VirtualQuery(addr as _, &mut mbi, want) != want {
+        return false;
+    }
+    if mbi.State != MEM_COMMIT {
+        return false;
+    }
+    let readable = PAGE_READONLY
+        | PAGE_READWRITE
+        | PAGE_WRITECOPY
+        | PAGE_EXECUTE_READ
+        | PAGE_EXECUTE_READWRITE
+        | PAGE_EXECUTE_WRITECOPY;
+    if mbi.Protect & readable == 0 || mbi.Protect & (PAGE_GUARD | PAGE_NOACCESS) != 0 {
+        return false;
+    }
+    // The full range must fit inside this single committed region.
+    let region_end = (mbi.BaseAddress as usize).wrapping_add(mbi.RegionSize);
+    if addr.checked_add(buf.len()).is_none_or(|e| e > region_end) {
+        return false;
+    }
+    core::ptr::copy_nonoverlapping(addr as *const u8, buf.as_mut_ptr(), buf.len());
+    true
+}
+
+/// Make `[addr, addr+data.len())` writable, copy `data`, flush the instruction
+/// cache, then restore the original protection. `false` if protection could not
+/// be changed. Verification is the caller's re-read (see [`apply_checked`]).
+unsafe fn protected_write(addr: usize, data: &[u8]) -> bool {
+    use windows_sys::Win32::System::Diagnostics::Debug::FlushInstructionCache;
+    use windows_sys::Win32::System::Memory::{VirtualProtect, PAGE_EXECUTE_READWRITE};
+    use windows_sys::Win32::System::Threading::GetCurrentProcess;
+    if addr == 0 || data.is_empty() {
+        return false;
+    }
+    let mut old: u32 = 0;
+    if VirtualProtect(addr as _, data.len(), PAGE_EXECUTE_READWRITE, &mut old) == 0 {
+        return false;
+    }
+    core::ptr::copy_nonoverlapping(data.as_ptr(), addr as *mut u8, data.len());
+    FlushInstructionCache(GetCurrentProcess(), addr as _, data.len());
+    // Best-effort restore of the original page protection.
+    let mut restored: u32 = 0;
+    VirtualProtect(addr as _, data.len(), old, &mut restored);
+    true
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use std::collections::HashMap;
+
+    /// Deterministic fake address space for the pure patch logic.
+    struct FakeMem {
+        cells: HashMap<usize, u8>,
+        readable: bool,
+        writable: bool,
+    }
+    impl FakeMem {
+        fn with(addr: usize, bytes: &[u8]) -> Self {
+            let mut cells = HashMap::new();
+            for (i, b) in bytes.iter().enumerate() {
+                cells.insert(addr + i, *b);
+            }
+            Self {
+                cells,
+                readable: true,
+                writable: true,
+            }
+        }
+    }
+    impl Mem for FakeMem {
+        fn read(&self, addr: usize, buf: &mut [u8]) -> bool {
+            if !self.readable {
+                return false;
+            }
+            for (i, slot) in buf.iter_mut().enumerate() {
+                match self.cells.get(&(addr + i)) {
+                    Some(b) => *slot = *b,
+                    None => return false,
+                }
+            }
+            true
+        }
+        fn write(&mut self, addr: usize, data: &[u8]) -> bool {
+            if !self.writable {
+                return false;
+            }
+            for (i, b) in data.iter().enumerate() {
+                self.cells.insert(addr + i, *b);
+            }
+            true
+        }
+    }
+
+    const ORIG: [u8; 2] = [0x75, 0x0f];
+    const PATCH: [u8; 2] = [0x7f, 0x0f];
+
+    #[test]
+    fn classify_recognises_all_three_states() {
+        assert_eq!(classify(&ORIG, &ORIG, &PATCH), PatchState::Original);
+        assert_eq!(classify(&PATCH, &ORIG, &PATCH), PatchState::AlreadyPatched);
+        assert_eq!(classify(&[0x12, 0x34], &ORIG, &PATCH), PatchState::Mismatch);
+    }
+
+    #[test]
+    fn original_bytes_are_applied_and_verified() {
+        let mut m = FakeMem::with(0x1000, &ORIG);
+        assert_eq!(
+            apply_checked(&mut m, 0x1000, &ORIG, &PATCH),
+            ApplyOutcome::Applied
+        );
+        // Memory now holds the replacement.
+        let mut got = [0u8; 2];
+        assert!(m.read(0x1000, &mut got));
+        assert_eq!(got, PATCH);
+    }
+
+    #[test]
+    fn already_patched_is_idempotent_noop() {
+        let mut m = FakeMem::with(0x2000, &PATCH);
+        assert_eq!(
+            apply_checked(&mut m, 0x2000, &ORIG, &PATCH),
+            ApplyOutcome::AlreadyPatched
+        );
+    }
+
+    #[test]
+    fn mismatch_never_writes() {
+        let junk = [0xde, 0xad];
+        let mut m = FakeMem::with(0x3000, &junk);
+        assert_eq!(
+            apply_checked(&mut m, 0x3000, &ORIG, &PATCH),
+            ApplyOutcome::Mismatch
+        );
+        // Untouched.
+        let mut got = [0u8; 2];
+        assert!(m.read(0x3000, &mut got));
+        assert_eq!(got, junk);
+    }
+
+    #[test]
+    fn unreadable_module_waits_without_crashing() {
+        let mut m = FakeMem::with(0x4000, &ORIG);
+        m.readable = false;
+        let out = apply_checked(&mut m, 0x4000, &ORIG, &PATCH);
+        assert_eq!(out, ApplyOutcome::NotReadable);
+        assert!(!out.is_patched());
+    }
+
+    #[test]
+    fn write_failure_is_reported_not_pretended() {
+        let mut m = FakeMem::with(0x5000, &ORIG);
+        m.writable = false;
+        assert_eq!(
+            apply_checked(&mut m, 0x5000, &ORIG, &PATCH),
+            ApplyOutcome::WriteFailed
+        );
+    }
+
+    #[test]
+    fn running_twice_does_not_corrupt() {
+        let mut m = FakeMem::with(0x6000, &ORIG);
+        assert_eq!(
+            apply_checked(&mut m, 0x6000, &ORIG, &PATCH),
+            ApplyOutcome::Applied
+        );
+        // Second pass sees the replacement and is a no-op.
+        assert_eq!(
+            apply_checked(&mut m, 0x6000, &ORIG, &PATCH),
+            ApplyOutcome::AlreadyPatched
+        );
+        let mut got = [0u8; 2];
+        assert!(m.read(0x6000, &mut got));
+        assert_eq!(got, PATCH);
+    }
+
+    #[test]
+    fn rva_and_live_addr_relocate_across_bases() {
+        // GATE1 example: preferred 0x140000000, VA 0x146132548.
+        assert_eq!(rva(0x1_4613_2548, 0x1_4000_0000), 0x613_2548);
+        // Applied at the preferred base gives the static VA back.
+        assert_eq!(live_addr(0x1_4000_0000, 0x613_2548), 0x1_4613_2548);
+        // Applied at a relocated (ASLR) base tracks the base exactly.
+        assert_eq!(live_addr(0x2_0000_0000, 0x613_2548), 0x2_0613_2548);
+    }
+
+    #[test]
+    fn hex_is_lowercase_unseparated() {
+        assert_eq!(hex(&[0x0f, 0x85, 0xde]), "0f85de");
+    }
+}

openfut-hook/src/recv_hook.rs

@@ -1,321 +0,0 @@
-/// Inline hooks on ws2_32!recv and ws2_32!send only.
-///
-/// WSARecv/WSASend are NOT hooked — their prologues contain RIP-relative
-/// (short conditional jump) instructions that would break trampolines.
-/// FIFA's LSX client uses plain recv/send, which is confirmed by prior logs.
-///
-/// Trampolines allow multiple threads to call the original function
-/// concurrently without locks or unhook/rehook races.
-use core::sync::atomic::{AtomicUsize, Ordering};
-
-unsafe fn write_jmp(target: *mut u8, dest: u64) {
-    use windows_sys::Win32::System::Memory::{VirtualProtect, PAGE_EXECUTE_READWRITE};
-    let mut old: u32 = 0;
-    VirtualProtect(target as _, 14, PAGE_EXECUTE_READWRITE, &mut old);
-    target.write(0xFF);
-    target.add(1).write(0x25);
-    (target.add(2) as *mut u32).write(0);
-    (target.add(6) as *mut u64).write(dest);
-    VirtualProtect(target as _, 14, old, &mut old);
-}
-
-unsafe fn make_trampoline(orig: *mut u8, name: &str) -> Option<usize> {
-    use windows_sys::Win32::System::Memory::{
-        VirtualAlloc, MEM_COMMIT, MEM_RESERVE, PAGE_EXECUTE_READWRITE,
-    };
-    // Read enough prologue to walk instruction boundaries.
-    let probe: [u8; 24] = core::array::from_fn(|i| *orig.add(i));
-    let hex: String = probe[..14].iter().map(|b| format!("{b:02x} ")).collect();
-    crate::write_log(&format!("recv_hook: {name} prologue {hex}\n"));
-
-    // Copy WHOLE instructions until we've covered >= 14 bytes (the size of the JMP
-    // patch), so the trampoline never splits an instruction. Copying a fixed 14
-    // bytes lands mid-instruction on these prologues and crashes on execution.
-    let mut copy_len = 0usize;
-    while copy_len < 14 {
-        let (len, branch) = decode_instr_len(&probe[copy_len..]);
-        if len == 0 || branch {
-            crate::write_log(&format!(
-                "recv_hook: {name} unrelocatable prologue (len={len} branch={branch}), skipping\n"
-            ));
-            return None;
-        }
-        copy_len += len;
-    }
-
-    let mem = VirtualAlloc(
-        core::ptr::null_mut(),
-        64,
-        MEM_COMMIT | MEM_RESERVE,
-        PAGE_EXECUTE_READWRITE,
-    );
-    if mem.is_null() {
-        crate::write_log("recv_hook: VirtualAlloc failed\n");
-        return None;
-    }
-
-    let t = mem as *mut u8;
-    core::ptr::copy_nonoverlapping(orig, t, copy_len);
-    // JMP [RIP+0] → orig+copy_len (resume at the next whole instruction)
-    let cont = (orig as u64) + copy_len as u64;
-    t.add(copy_len).write(0xFF);
-    t.add(copy_len + 1).write(0x25);
-    (t.add(copy_len + 2) as *mut u32).write(0);
-    (t.add(copy_len + 6) as *mut u64).write(cont);
-    crate::write_log(&format!(
-        "recv_hook: {name} trampoline copy_len={copy_len}\n"
-    ));
-    Some(t as usize)
-}
-
-/// Walk x86-64 instruction boundaries and return true if any relative branch
-/// (JE/JNE/JCC rel8, JMP rel8, JMP/CALL rel32, Jcc rel32) is encountered.
-/// Correctly skips over immediate operands so `sub rsp, 0x70` doesn't trigger.
-fn has_rip_relative_branch(bytes: &[u8]) -> bool {
-    let mut pos = 0;
-    while pos < bytes.len() {
-        let (len, branch) = decode_instr_len(&bytes[pos..]);
-        if branch {
-            return true;
-        }
-        if len == 0 {
-            break;
-        } // unknown/truncated — stop safely
-        pos += len;
-    }
-    false
-}
-
-fn modrm_extra(modrm: u8) -> usize {
-    let md = (modrm >> 6) & 3;
-    let rm = modrm & 7;
-    match md {
-        0 => {
-            if rm == 5 {
-                4
-            } else if rm == 4 {
-                1
-            } else {
-                0
-            }
-        }
-        1 => {
-            if rm == 4 {
-                2
-            } else {
-                1
-            }
-        }
-        2 => {
-            if rm == 4 {
-                5
-            } else {
-                4
-            }
-        }
-        _ => 0,
-    }
-}
-
-/// Returns (instruction_length_in_bytes, is_rip_relative_branch).
-/// Returns (0, false) for unknown/truncated.
-fn decode_instr_len(b: &[u8]) -> (usize, bool) {
-    if b.is_empty() {
-        return (0, false);
-    }
-    let mut i = 0;
-    // Legacy prefixes
-    while let Some(&p) = b.get(i) {
-        if matches!(p, 0x66 | 0x67 | 0xF0 | 0xF2 | 0xF3) {
-            i += 1;
-        } else {
-            break;
-        }
-    }
-    // REX prefix (40–4F)
-    if b.get(i)
-        .copied()
-        .map(|x| (0x40..=0x4F).contains(&x))
-        .unwrap_or(false)
-    {
-        i += 1;
-    }
-
-    let op = match b.get(i) {
-        Some(&x) => x,
-        None => return (0, false),
-    };
-    i += 1;
-
-    match op {
-        // push/pop reg (50-5F): no extra bytes
-        0x50..=0x5F => (i, false),
-        // nop
-        0x90 => (i, false),
-        // Short Jcc (70-7F): 1 byte operand, IS a relative branch
-        x if (0x70..=0x7F).contains(&x) => (i + 1, true),
-        // JMP rel8, JMP rel32, CALL rel32
-        0xEB => (i + 1, true),
-        0xE9 | 0xE8 => (i + 4, true),
-        // 0F prefix
-        0x0F => {
-            let op2 = match b.get(i) {
-                Some(&x) => x,
-                None => return (0, false),
-            };
-            i += 1;
-            if (0x80..=0x8F).contains(&op2) {
-                return (i + 4, true);
-            } // Jcc rel32
-              // Most 0F XX: ModRM
-            let modrm = match b.get(i) {
-                Some(&x) => x,
-                None => return (0, false),
-            };
-            (i + 1 + modrm_extra(modrm), false)
-        }
-        // Instructions with ModRM only (no immediate)
-        0x85 | 0x87 | 0x88 | 0x89 | 0x8A | 0x8B | 0x8C | 0x8D | 0x8E | 0x8F | 0x01 | 0x03
-        | 0x09 | 0x0B | 0x11 | 0x13 | 0x21 | 0x23 | 0x29 | 0x2B | 0x31 | 0x33 | 0x39 | 0x3B
-        | 0xD3 | 0xFF | 0xF7 => {
-            let modrm = match b.get(i) {
-                Some(&x) => x,
-                None => return (0, false),
-            };
-            (i + 1 + modrm_extra(modrm), false)
-        }
-        // ModRM + imm8
-        0x6B | 0x80 | 0x83 | 0xC0 | 0xC1 | 0xC6 => {
-            let modrm = match b.get(i) {
-                Some(&x) => x,
-                None => return (0, false),
-            };
-            (i + 1 + modrm_extra(modrm) + 1, false)
-        }
-        // ModRM + imm32
-        0x69 | 0x81 | 0xC7 => {
-            let modrm = match b.get(i) {
-                Some(&x) => x,
-                None => return (0, false),
-            };
-            (i + 1 + modrm_extra(modrm) + 4, false)
-        }
-        // MOV reg, imm8/imm32
-        0xB0..=0xB7 => (i + 1, false),
-        0xB8..=0xBF => (i + 4, false),
-        // PUSH imm
-        0x6A => (i + 1, false),
-        0x68 => (i + 4, false),
-        // RET
-        0xC2 => (i + 2, false),
-        0xC3 => (i, false),
-        _ => (0, false), // unknown — stop
-    }
-}
-
-unsafe fn get_fn(dll: &[u8], sym: &[u8]) -> Option<*mut u8> {
-    use windows_sys::Win32::System::LibraryLoader::{GetModuleHandleA, GetProcAddress};
-    let h = GetModuleHandleA(dll.as_ptr());
-    if h.is_null() {
-        return None;
-    }
-    GetProcAddress(h, sym.as_ptr()).map(|f| f as *mut u8)
-}
-
-// ─── recv ──────────────────────────────────────────────────────────────────────
-
-static RECV_TRAMPOLINE: AtomicUsize = AtomicUsize::new(0);
-
-/// True if socket `s` is connected to the EA App LSX port (127.0.0.1:3216).
-/// Used in capture mode to tap only the LSX conversation.
-unsafe fn peer_is_lsx(s: usize) -> bool {
-    use windows_sys::Win32::Networking::WinSock::getpeername;
-    let mut sa = [0u8; 16];
-    let mut sl: i32 = 16;
-    if getpeername(s, sa.as_mut_ptr() as *mut _, &mut sl) != 0 {
-        return false;
-    }
-    // sockaddr_in: sa_family (2 bytes) then sin_port (2 bytes, network order).
-    u16::from_be_bytes([sa[2], sa[3]]) == 3216
-}
-
-// IAT-hook approach (no inline trampoline — FIFA's `recv`/`send` prologues have
-// instructions that straddle the 14-byte patch boundary, so an inline trampoline
-// corrupts them and crashes. IAT hooking only swaps import-table pointers and
-// never touches the function body). The real fns are resolved in lib.rs and set
-// here; our hooks call them directly.
-static REAL_RECV: AtomicUsize = AtomicUsize::new(0);
-static REAL_SEND: AtomicUsize = AtomicUsize::new(0);
-
-pub fn set_real_recv(f: unsafe extern "system" fn(usize, *mut u8, i32, i32) -> i32) {
-    REAL_RECV.store(f as usize, Ordering::Relaxed);
-}
-pub fn set_real_send(f: unsafe extern "system" fn(usize, *const u8, i32, i32) -> i32) {
-    REAL_SEND.store(f as usize, Ordering::Relaxed);
-}
-
-/// Inline-hook ws2_32!recv: build a boundary-safe trampoline (the "real" fn our
-/// hook calls) and overwrite the entry with a JMP to `hooked_recv`. Inline hooks
-/// catch calls from every module and dynamically-resolved calls, unlike IAT.
-pub unsafe fn install_recv_hook() -> bool {
-    let ptr = match get_fn(b"ws2_32.dll\0", b"recv\0") {
-        Some(p) => p,
-        None => return false,
-    };
-    match make_trampoline(ptr, "recv") {
-        Some(t) => REAL_RECV.store(t, Ordering::Relaxed),
-        None => return false,
-    }
-    write_jmp(ptr, hooked_recv as u64);
-    true
-}
-
-pub unsafe fn install_send_hook() -> bool {
-    let ptr = match get_fn(b"ws2_32.dll\0", b"send\0") {
-        Some(p) => p,
-        None => return false,
-    };
-    match make_trampoline(ptr, "send") {
-        Some(t) => REAL_SEND.store(t, Ordering::Relaxed),
-        None => return false,
-    }
-    write_jmp(ptr, hooked_send as u64);
-    true
-}
-
-pub unsafe extern "system" fn hooked_recv(s: usize, buf: *mut u8, len: i32, flags: i32) -> i32 {
-    let t = REAL_RECV.load(Ordering::Relaxed);
-    if t == 0 {
-        return -1;
-    }
-    let f: unsafe extern "system" fn(usize, *mut u8, i32, i32) -> i32 = core::mem::transmute(t);
-    // Pass through to anadius's real socket, then log what it sent back
-    // (anadius's LSX response — the ground truth we want to diff against).
-    let n = f(s, buf, len, flags);
-    if n > 0 && peer_is_lsx(s) {
-        let data = core::slice::from_raw_parts(buf, n as usize);
-        let text = core::str::from_utf8(data).unwrap_or("(binary)");
-        crate::write_log(&format!(
-            "CAP recv<-anadius s={s} n={n}: {}\n",
-            &text[..text.len().min(2400)]
-        ));
-    }
-    n
-}
-
-pub unsafe extern "system" fn hooked_send(s: usize, buf: *const u8, len: i32, flags: i32) -> i32 {
-    if len > 0 && peer_is_lsx(s) {
-        let data = core::slice::from_raw_parts(buf, len as usize);
-        let text = core::str::from_utf8(data).unwrap_or("(binary)");
-        crate::write_log(&format!(
-            "CAP send->anadius s={s} len={len}: {}\n",
-            &text[..text.len().min(2400)]
-        ));
-    }
-    let t = REAL_SEND.load(Ordering::Relaxed);
-    if t == 0 {
-        return -1;
-    }
-    let f: unsafe extern "system" fn(usize, *const u8, i32, i32) -> i32 = core::mem::transmute(t);
-    f(s, buf, len, flags)
-}

openfut-hook/src/sbc_dispatch.rs

@@ -0,0 +1,856 @@
+//! Guarded FIFA 17 SBC completion dispatch and passive event tracing.
+//!
+//! The repair is a PROMOTED feature: it is armed by the build itself, never by an
+//! environment variable (see [`REPAIR_PROMOTED`]). Safety lives in the runtime
+//! evidence gate, not in a flag.
+
+use core::ffi::c_void;
+use core::sync::atomic::{AtomicBool, AtomicU64, AtomicUsize, Ordering};
+use windows_sys::Win32::System::Diagnostics::Debug::FlushInstructionCache;
+use windows_sys::Win32::System::LibraryLoader::{
+    GetModuleHandleA, GetModuleHandleExA, GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS,
+    GET_MODULE_HANDLE_EX_FLAG_PIN,
+};
+use windows_sys::Win32::System::Memory::{
+    VirtualAlloc, VirtualFree, VirtualProtect, MEM_COMMIT, MEM_RELEASE, MEM_RESERVE,
+    PAGE_EXECUTE_READ, PAGE_EXECUTE_READWRITE, PAGE_READWRITE,
+};
+use windows_sys::Win32::System::Threading::{GetCurrentProcess, GetCurrentThreadId};
+
+const COMPLETION_RVA: usize = 0x0b8950;
+const EVENT_DISPATCH_RVA: usize = 0x1a4cd0;
+const CATEGORY_RESPONSE_VTABLE_RVA: usize = 0x22e5b0;
+const SBC_CONTROLLER_VTABLE_RVA: usize = 0x20a820;
+const SBC_CONTROLLER_EVENT_VTABLE_RVA: usize = 0x20a888;
+const SBC_CONTROLLER_EVENT_SUBOBJECT_OFF: usize = 0x138;
+const SBC_CONTROLLER_MODEL_OFF: usize = 0x140;
+const COMPLETION_COPY_LEN: usize = 14;
+const EVENT_COPY_LEN: usize = 16;
+const ABS_JUMP_LEN: usize = 14;
+const COMPLETION_TRAMPOLINE_LEN: usize = 12 + 2 + ABS_JUMP_LEN * 2;
+const UNKNOWN_TRANSPORT_STATUS: u32 = 999;
+const FUT_SBS_CATEGORIES_EVENT: u32 = 0x756c;
+const FUT_SBS_CATEGORIES_READY_EVENT: u32 = 0x756d;
+const SBC_REFRESH_EVENT: u32 = 0x138c;
+
+const COMPLETION_SIGNATURE: [u8; 32] = [
+    0x40, 0x53, 0x48, 0x83, 0xec, 0x20, 0x48, 0x8b, 0xd9, 0x48, 0x85, 0xd2, 0x74, 0x4e, 0x83, 0x7a,
+    0x1c, 0x00, 0x75, 0x48, 0xc6, 0x81, 0x1d, 0x02, 0x00, 0x00, 0x01, 0x48, 0x8b, 0x89, 0x40, 0x01,
+];
+const EVENT_SIGNATURE: [u8; EVENT_COPY_LEN] = [
+    0x48, 0x8b, 0xc4, 0x57, 0x48, 0x83, 0xec, 0x60, 0x48, 0xc7, 0x40, 0xb8, 0xfe, 0xff, 0xff, 0xff,
+];
+
+type CompletionFn = unsafe extern "system" fn(*mut c_void, *mut c_void) -> usize;
+type EventDispatchFn = unsafe extern "system" fn(*mut c_void, u32, *mut c_void) -> usize;
+
+/// The guarded native dispatch repair is PROMOTED: armed by the build, never by an
+/// environment variable. Retail Gates A–G passed on the pinned CardsDLL build, so a
+/// deployed hook must repair the SBC completion on every launch path (Steam, the
+/// launcher, or a bare `umu-run`) with nothing to export.
+///
+/// Promotion does NOT weaken any check — every guard stays in the runtime evidence
+/// gate rather than in a flag. `worker` still validates the exact CardsDLL
+/// signatures before installing a detour, and [`decide`] still requires the
+/// transport sentinel status, the pinned category-response vtable captured while
+/// the response object was provably live, balanced parser counts on the one parser
+/// thread, this generation's notifier having entered AND returned, the captured
+/// controller/model identity, and one repair per deserializer generation. Anything
+/// unrecognised leaves native execution untouched.
+///
+/// Rollback is a file swap (restore the previous `version.dll`) — the documented
+/// client rollback path — deliberately not an env kill-switch.
+pub(crate) const REPAIR_PROMOTED: bool = true;
+
+/// Compile-time contract: the repair stays armed by the build. Flipping this back to
+/// an env gate would silently cost a normal launch (Steam or the launcher) its SBC
+/// screen, which is exactly the regression promotion removed — so it must be a
+/// deliberate, visible change here rather than a missing variable at runtime.
+const _: () = assert!(REPAIR_PROMOTED);
+
+static REPAIR_ENABLED: AtomicBool = AtomicBool::new(false);
+static COMPLETION_TRAMPOLINE: AtomicUsize = AtomicUsize::new(0);
+static EVENT_TRAMPOLINE: AtomicUsize = AtomicUsize::new(0);
+static SBC_CONTROLLER: AtomicUsize = AtomicUsize::new(0);
+static LAST_REPAIRED_GENERATION: AtomicU64 = AtomicU64::new(0);
+static COMPLETION_ENTRIES: AtomicU64 = AtomicU64::new(0);
+static COMPLETION_EXITS: AtomicU64 = AtomicU64::new(0);
+static COMPLETION_THREAD: AtomicUsize = AtomicUsize::new(0);
+static COMPLETION_CONTROLLER: AtomicUsize = AtomicUsize::new(0);
+static COMPLETION_STATUS_OBJECT: AtomicUsize = AtomicUsize::new(0);
+static COMPLETION_STATUS: AtomicUsize = AtomicUsize::new(usize::MAX);
+static COMPLETION_GENERATION: AtomicU64 = AtomicU64::new(0);
+static COMPLETION_DECISION: AtomicUsize = AtomicUsize::new(Decision::NativeSuccess as usize);
+static COMPLETION_REJECTION: AtomicUsize = AtomicUsize::new(Rejection::None as usize);
+static EVENT_ENTRIES: AtomicU64 = AtomicU64::new(0);
+static EVENT_EXITS: AtomicU64 = AtomicU64::new(0);
+static EVENT_THREAD: AtomicUsize = AtomicUsize::new(0);
+static EVENT_CONTROLLER: AtomicUsize = AtomicUsize::new(0);
+static EVENT_ID: AtomicUsize = AtomicUsize::new(0);
+static EVENT_PAYLOAD: AtomicUsize = AtomicUsize::new(0);
+static EVENT_CATEGORIES: AtomicU64 = AtomicU64::new(0);
+static EVENT_REFRESH: AtomicU64 = AtomicU64::new(0);
+static EVENT_READY: AtomicU64 = AtomicU64::new(0);
+
+#[derive(Clone, Copy, Debug, Eq, PartialEq)]
+#[repr(usize)]
+enum Decision {
+    NativeSuccess,
+    Repair,
+}
+
+const REJECTED_DECISION: usize = 2;
+
+#[derive(Clone, Copy, Debug, Eq, PartialEq)]
+#[repr(usize)]
+enum Rejection {
+    None,
+    RepairDisabled,
+    NullStatus,
+    StatusUnreadable,
+    UnsupportedStatus,
+    CardsBuildMismatch,
+    ParserUnbalanced,
+    FactoryMismatch,
+    ParserThreadMismatch,
+    ReaderMissing,
+    ParseFailed,
+    ResponseClassMismatch,
+    ModelChanged,
+    ModelEmpty,
+    NotifierNotCurrent,
+    ControllerMismatch,
+    ControllerModelMismatch,
+    DuplicateGeneration,
+}
+
+#[derive(Clone, Copy)]
+struct DecisionInput {
+    repair_enabled: bool,
+    status: Option<u32>,
+    status_present: bool,
+    status_copyable: bool,
+    cards_build_matches: bool,
+    factory_entries: u64,
+    factory_exits: u64,
+    factory_result: usize,
+    factory_thread: usize,
+    deserializer_entries: u64,
+    deserializer_exits: u64,
+    deserializer_this: usize,
+    deserializer_reader: usize,
+    deserializer_result: bool,
+    deserializer_thread: usize,
+    response_class_matches: bool,
+    model: usize,
+    live_category_count: usize,
+    category_count: usize,
+    notifier_entries: u64,
+    notifier_exits: u64,
+    controller_matches: bool,
+    controller_model_matches: bool,
+    last_repaired_generation: u64,
+}
+
+fn decide(input: DecisionInput) -> Result<Decision, Rejection> {
+    let Some(status) = input.status else {
+        return Err(if input.status_present {
+            Rejection::StatusUnreadable
+        } else {
+            Rejection::NullStatus
+        });
+    };
+    if status == 0 {
+        return Ok(Decision::NativeSuccess);
+    }
+    if !input.repair_enabled {
+        return Err(Rejection::RepairDisabled);
+    }
+    if status != UNKNOWN_TRANSPORT_STATUS {
+        return Err(Rejection::UnsupportedStatus);
+    }
+    if !input.status_copyable {
+        return Err(Rejection::StatusUnreadable);
+    }
+    if !input.cards_build_matches {
+        return Err(Rejection::CardsBuildMismatch);
+    }
+    let generation = input.deserializer_exits;
+    if generation == 0
+        || input.factory_entries != input.factory_exits
+        || input.deserializer_entries != generation
+        || input.factory_exits != generation
+    {
+        return Err(Rejection::ParserUnbalanced);
+    }
+    if input.factory_result == 0 || input.factory_result != input.deserializer_this {
+        return Err(Rejection::FactoryMismatch);
+    }
+    if input.factory_thread == 0 || input.factory_thread != input.deserializer_thread {
+        return Err(Rejection::ParserThreadMismatch);
+    }
+    if input.deserializer_reader == 0 {
+        return Err(Rejection::ReaderMissing);
+    }
+    if !input.deserializer_result {
+        return Err(Rejection::ParseFailed);
+    }
+    if !input.response_class_matches {
+        return Err(Rejection::ResponseClassMismatch);
+    }
+    if input.model == 0 || input.category_count == 0 || input.category_count == usize::MAX {
+        return Err(Rejection::ModelEmpty);
+    }
+    if input.live_category_count != input.category_count {
+        return Err(Rejection::ModelChanged);
+    }
+    // The category-success notifier for this generation must have entered and
+    // fully returned before the SBC completion runs. On the pinned CardsDLL the
+    // completion fires immediately after the notifier unwinds (measured: notifier
+    // entries == exits == generation at completion), not nested inside it, so we
+    // bind both notifier counts to the current generation rather than requiring
+    // an in-flight notifier.
+    if input.notifier_entries != generation
+        || input.notifier_entries == 0
+        || input.notifier_exits != generation
+    {
+        return Err(Rejection::NotifierNotCurrent);
+    }
+    if !input.controller_matches {
+        return Err(Rejection::ControllerMismatch);
+    }
+    if !input.controller_model_matches {
+        return Err(Rejection::ControllerModelMismatch);
+    }
+    if input.last_repaired_generation >= generation {
+        return Err(Rejection::DuplicateGeneration);
+    }
+    Ok(Decision::Repair)
+}
+
+/// The parsed response is the FIFA 17 typed SBC-category response only when the
+/// vtable captured at deserializer exit (object provably live) equals the pinned
+/// category-response vtable for the running CardsDLL image. A zero capture means
+/// the object vtable was unreadable and never qualifies.
+fn response_class_matches(base: usize, response_vtable: usize) -> bool {
+    response_vtable != 0 && base.checked_add(CATEGORY_RESPONSE_VTABLE_RVA) == Some(response_vtable)
+}
+
+unsafe fn guarded_u32(address: usize) -> Option<u32> {
+    crate::sbc_trace::readable_range(address, 4)
+        .then(|| core::ptr::read_volatile(address as *const u32))
+}
+
+unsafe fn status_code(status: usize) -> Option<u32> {
+    status
+        .checked_add(0x1c)
+        .and_then(|address| guarded_u32(address))
+}
+
+unsafe fn controller_identity(base: usize, controller: usize, model: usize) -> (bool, bool) {
+    if base == 0 || controller == 0 {
+        return (false, false);
+    }
+    let main_vtable = crate::sbc_trace::guarded_usize(controller);
+    let event_vtable = controller
+        .checked_add(SBC_CONTROLLER_EVENT_SUBOBJECT_OFF)
+        .and_then(|address| crate::sbc_trace::guarded_usize(address));
+    let controller_model = controller
+        .checked_add(SBC_CONTROLLER_MODEL_OFF)
+        .and_then(|address| crate::sbc_trace::guarded_usize(address));
+    (
+        main_vtable == base.checked_add(SBC_CONTROLLER_VTABLE_RVA)
+            && event_vtable == base.checked_add(SBC_CONTROLLER_EVENT_VTABLE_RVA),
+        controller_model == Some(model),
+    )
+}
+
+pub(crate) unsafe fn note_sbc_controller(controller: usize, base: usize) {
+    let (identity_matches, _) = controller_identity(base, controller, 0);
+    if identity_matches {
+        SBC_CONTROLLER.store(controller, Ordering::Release);
+        crate::write_log(&format!(
+            "SBC_DISPATCH: captured category controller={controller:#x}\n"
+        ));
+    } else {
+        crate::write_log(&format!(
+            "SBC_DISPATCH: rejected category controller={controller:#x} (class mismatch)\n"
+        ));
+    }
+}
+
+#[repr(C, align(16))]
+struct CompletionStatusShadow([u8; 0x20]);
+
+unsafe extern "system" fn completion_wrapper(
+    controller: *mut c_void,
+    status: *mut c_void,
+) -> usize {
+    COMPLETION_ENTRIES.fetch_add(1, Ordering::Relaxed);
+    COMPLETION_THREAD.store(GetCurrentThreadId() as usize, Ordering::Relaxed);
+    COMPLETION_CONTROLLER.store(controller as usize, Ordering::Relaxed);
+    COMPLETION_STATUS_OBJECT.store(status as usize, Ordering::Relaxed);
+
+    let evidence = crate::sbc_trace::dispatch_evidence();
+    let status_address = status as usize;
+    let observed_status = if status_address == 0 {
+        None
+    } else {
+        status_code(status_address)
+    };
+    COMPLETION_STATUS.store(
+        observed_status
+            .map(|value| value as usize)
+            .unwrap_or(usize::MAX),
+        Ordering::Relaxed,
+    );
+    COMPLETION_GENERATION.store(evidence.deserializer_exits, Ordering::Relaxed);
+
+    let captured_controller = SBC_CONTROLLER.load(Ordering::Acquire);
+    let live_category_count = evidence
+        .model
+        .checked_add(0x50)
+        .and_then(|address| crate::sbc_trace::guarded_u16(address))
+        .map(usize::from)
+        .unwrap_or(usize::MAX);
+    let (controller_matches, controller_model_matches) =
+        controller_identity(evidence.base, captured_controller, evidence.model);
+    let input = DecisionInput {
+        repair_enabled: REPAIR_ENABLED.load(Ordering::Acquire),
+        status: observed_status,
+        status_present: status_address != 0,
+        status_copyable: status_address != 0
+            && crate::sbc_trace::readable_range(status_address, 0x20),
+        cards_build_matches: crate::sbc_trace::valid_cards_image(evidence.base),
+        factory_entries: evidence.factory_entries,
+        factory_exits: evidence.factory_exits,
+        factory_result: evidence.factory_result,
+        factory_thread: evidence.factory_thread,
+        deserializer_entries: evidence.deserializer_entries,
+        deserializer_exits: evidence.deserializer_exits,
+        deserializer_this: evidence.deserializer_this,
+        deserializer_reader: evidence.deserializer_reader,
+        deserializer_result: evidence.deserializer_result,
+        deserializer_thread: evidence.deserializer_thread,
+        response_class_matches: response_class_matches(evidence.base, evidence.response_vtable),
+        model: evidence.model,
+        live_category_count,
+        category_count: evidence.category_count,
+        notifier_entries: evidence.notifier_entries,
+        notifier_exits: evidence.notifier_exits,
+        controller_matches: controller_matches && captured_controller == controller as usize,
+        controller_model_matches,
+        last_repaired_generation: LAST_REPAIRED_GENERATION.load(Ordering::Acquire),
+    };
+
+    let original: CompletionFn =
+        core::mem::transmute(COMPLETION_TRAMPOLINE.load(Ordering::Acquire));
+    let result = match decide(input) {
+        Ok(Decision::Repair) => {
+            if LAST_REPAIRED_GENERATION
+                .compare_exchange(
+                    input.last_repaired_generation,
+                    evidence.deserializer_exits,
+                    Ordering::AcqRel,
+                    Ordering::Acquire,
+                )
+                .is_ok()
+            {
+                let mut shadow = CompletionStatusShadow([0; 0x20]);
+                core::ptr::copy_nonoverlapping(
+                    status_address as *const u8,
+                    shadow.0.as_mut_ptr(),
+                    shadow.0.len(),
+                );
+                shadow.0[0x1c..0x20].copy_from_slice(&0u32.to_le_bytes());
+                COMPLETION_DECISION.store(Decision::Repair as usize, Ordering::Relaxed);
+                COMPLETION_REJECTION.store(Rejection::None as usize, Ordering::Relaxed);
+                original(controller, shadow.0.as_mut_ptr().cast())
+            } else {
+                COMPLETION_DECISION.store(REJECTED_DECISION, Ordering::Relaxed);
+                COMPLETION_REJECTION
+                    .store(Rejection::DuplicateGeneration as usize, Ordering::Relaxed);
+                original(controller, status)
+            }
+        }
+        Ok(Decision::NativeSuccess) => {
+            COMPLETION_DECISION.store(Decision::NativeSuccess as usize, Ordering::Relaxed);
+            COMPLETION_REJECTION.store(Rejection::None as usize, Ordering::Relaxed);
+            original(controller, status)
+        }
+        Err(rejection) => {
+            COMPLETION_DECISION.store(REJECTED_DECISION, Ordering::Relaxed);
+            COMPLETION_REJECTION.store(rejection as usize, Ordering::Relaxed);
+            original(controller, status)
+        }
+    };
+    crate::write_log(&format!(
+        "SBC_DISPATCH: decide gen={} status={} present={} copyable={} cards={} factory_e={} factory_x={} factory_r={:#x} factory_t={} deser_e={} deser_x={} deser_this={:#x} reader={:#x} deser_ok={} deser_t={} vt_obs={:#x} vt_exp={:#x} class={} model={:#x} live={} count={} notif_e={} notif_x={} ctrl_match={} ctrl_model={} captured_ctrl={:#x} arg_ctrl={:#x} last_gen={} decision={} rejection={}\n",
+        input.deserializer_exits,
+        input.status.map(i64::from).unwrap_or(-1),
+        input.status_present,
+        input.status_copyable,
+        input.cards_build_matches,
+        input.factory_entries,
+        input.factory_exits,
+        input.factory_result,
+        input.factory_thread,
+        input.deserializer_entries,
+        input.deserializer_exits,
+        input.deserializer_this,
+        input.deserializer_reader,
+        input.deserializer_result,
+        input.deserializer_thread,
+        evidence.response_vtable,
+        evidence.base.checked_add(CATEGORY_RESPONSE_VTABLE_RVA).unwrap_or(0),
+        input.response_class_matches,
+        input.model,
+        input.live_category_count,
+        input.category_count,
+        input.notifier_entries,
+        input.notifier_exits,
+        input.controller_matches,
+        input.controller_model_matches,
+        captured_controller,
+        controller as usize,
+        input.last_repaired_generation,
+        COMPLETION_DECISION.load(Ordering::Relaxed),
+        COMPLETION_REJECTION.load(Ordering::Relaxed),
+    ));
+    COMPLETION_EXITS.fetch_add(1, Ordering::Release);
+    result
+}
+
+unsafe extern "system" fn event_wrapper(
+    controller: *mut c_void,
+    event: u32,
+    payload: *mut c_void,
+) -> usize {
+    EVENT_ENTRIES.fetch_add(1, Ordering::Relaxed);
+    EVENT_THREAD.store(GetCurrentThreadId() as usize, Ordering::Relaxed);
+    EVENT_CONTROLLER.store(controller as usize, Ordering::Relaxed);
+    EVENT_ID.store(event as usize, Ordering::Relaxed);
+    EVENT_PAYLOAD.store(payload as usize, Ordering::Relaxed);
+    match event {
+        FUT_SBS_CATEGORIES_EVENT => {
+            EVENT_CATEGORIES.fetch_add(1, Ordering::Relaxed);
+        }
+        SBC_REFRESH_EVENT => {
+            EVENT_REFRESH.fetch_add(1, Ordering::Relaxed);
+        }
+        FUT_SBS_CATEGORIES_READY_EVENT => {
+            EVENT_READY.fetch_add(1, Ordering::Relaxed);
+        }
+        _ => {}
+    }
+    // Piggyback the store pre-warm on this game-thread hub event: it loads the
+    // purchase groups once, before the store screen is shown, so the store's native
+    // screen-show tab bind sees a populated group list (see `store_entry`).
+    crate::store_entry::maybe_prewarm_groups();
+    let original: EventDispatchFn = core::mem::transmute(EVENT_TRAMPOLINE.load(Ordering::Acquire));
+    let result = original(controller, event, payload);
+    EVENT_EXITS.fetch_add(1, Ordering::Release);
+    result
+}
+
+unsafe fn allocate_completion_trampoline(target: usize) -> Option<usize> {
+    let failure_target = target.checked_add(0x5c)?;
+    let success_target = target.checked_add(COMPLETION_COPY_LEN)?;
+    let memory = VirtualAlloc(
+        core::ptr::null(),
+        COMPLETION_TRAMPOLINE_LEN,
+        MEM_COMMIT | MEM_RESERVE,
+        PAGE_READWRITE,
+    ) as usize;
+    if memory == 0 {
+        return None;
+    }
+    core::ptr::copy_nonoverlapping(target as *const u8, memory as *mut u8, 12);
+    // The relocated branch preserves the original null-status failure edge.
+    core::ptr::copy_nonoverlapping([0x75, 0x0e].as_ptr(), (memory + 12) as *mut u8, 2);
+    let failure = crate::sbc_trace::absolute_jump(failure_target);
+    core::ptr::copy_nonoverlapping(failure.as_ptr(), (memory + 14) as *mut u8, ABS_JUMP_LEN);
+    let success = crate::sbc_trace::absolute_jump(success_target);
+    core::ptr::copy_nonoverlapping(success.as_ptr(), (memory + 28) as *mut u8, ABS_JUMP_LEN);
+    let mut old = 0u32;
+    if VirtualProtect(
+        memory as _,
+        COMPLETION_TRAMPOLINE_LEN,
+        PAGE_EXECUTE_READ,
+        &mut old,
+    ) == 0
+        || FlushInstructionCache(GetCurrentProcess(), memory as _, COMPLETION_TRAMPOLINE_LEN) == 0
+    {
+        VirtualFree(memory as _, 0, MEM_RELEASE);
+        return None;
+    }
+    Some(memory)
+}
+
+unsafe fn restore_entry<const N: usize>(target: usize, original: &[u8; N]) -> bool {
+    let mut old = 0u32;
+    if VirtualProtect(target as _, N, PAGE_EXECUTE_READWRITE, &mut old) == 0 {
+        return false;
+    }
+    core::ptr::copy_nonoverlapping(original.as_ptr(), target as *mut u8, N);
+    let flushed = FlushInstructionCache(GetCurrentProcess(), target as _, N) != 0;
+    let mut ignored = 0u32;
+    flushed && VirtualProtect(target as _, N, old, &mut ignored) != 0
+}
+
+unsafe fn write_entry<const N: usize>(
+    target: usize,
+    destination: usize,
+    original: &[u8; N],
+) -> Result<(), bool> {
+    let mut patch = [0x90u8; N];
+    patch[..ABS_JUMP_LEN].copy_from_slice(&crate::sbc_trace::absolute_jump(destination));
+    let mut old = 0u32;
+    if VirtualProtect(target as _, N, PAGE_EXECUTE_READWRITE, &mut old) == 0 {
+        return Err(true);
+    }
+    core::ptr::copy_nonoverlapping(patch.as_ptr(), target as *mut u8, N);
+    let flushed = FlushInstructionCache(GetCurrentProcess(), target as _, N) != 0;
+    let mut ignored = 0u32;
+    if flushed && VirtualProtect(target as _, N, old, &mut ignored) != 0 {
+        Ok(())
+    } else {
+        Err(restore_entry(target, original))
+    }
+}
+
+#[derive(Clone, Copy, Debug, Eq, PartialEq)]
+enum InstallOutcome {
+    Installed,
+    CleanFailure,
+    DegradedHookActive,
+    DegradedProcessState,
+    DegradedHookAndProcess,
+}
+
+unsafe fn install_pair(base: usize) -> InstallOutcome {
+    let Some(completion) = crate::sbc_trace::target_va(base, COMPLETION_RVA) else {
+        return InstallOutcome::CleanFailure;
+    };
+    let Some(event) = crate::sbc_trace::target_va(base, EVENT_DISPATCH_RVA) else {
+        return InstallOutcome::CleanFailure;
+    };
+    let completion_original: [u8; COMPLETION_COPY_LEN] = COMPLETION_SIGNATURE
+        [..COMPLETION_COPY_LEN]
+        .try_into()
+        .unwrap();
+    if !crate::sbc_trace::valid_cards_image(base)
+        || !crate::sbc_trace::executable_range_in_image(
+            base,
+            completion,
+            COMPLETION_SIGNATURE.len(),
+        )
+        || !crate::sbc_trace::executable_range_in_image(base, event, EVENT_SIGNATURE.len())
+        || core::slice::from_raw_parts(completion as *const u8, COMPLETION_SIGNATURE.len())
+            != COMPLETION_SIGNATURE
+        || core::slice::from_raw_parts(event as *const u8, EVENT_SIGNATURE.len()) != EVENT_SIGNATURE
+    {
+        return InstallOutcome::CleanFailure;
+    }
+    let mut pinned = core::ptr::null_mut();
+    if GetModuleHandleExA(
+        GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS | GET_MODULE_HANDLE_EX_FLAG_PIN,
+        completion as *const u8,
+        &mut pinned,
+    ) == 0
+        || pinned as usize != base
+    {
+        return InstallOutcome::CleanFailure;
+    }
+    let Some(completion_trampoline) = allocate_completion_trampoline(completion) else {
+        return InstallOutcome::CleanFailure;
+    };
+    let Some(event_trampoline) = crate::sbc_trace::allocate_trampoline(event, EVENT_COPY_LEN)
+    else {
+        VirtualFree(completion_trampoline as _, 0, MEM_RELEASE);
+        return InstallOutcome::CleanFailure;
+    };
+    COMPLETION_TRAMPOLINE.store(completion_trampoline, Ordering::Release);
+    EVENT_TRAMPOLINE.store(event_trampoline, Ordering::Release);
+
+    let Some(_gate) = crate::sbc_trace::acquire_patch_installer_gate() else {
+        VirtualFree(completion_trampoline as _, 0, MEM_RELEASE);
+        VirtualFree(event_trampoline as _, 0, MEM_RELEASE);
+        COMPLETION_TRAMPOLINE.store(0, Ordering::Release);
+        EVENT_TRAMPOLINE.store(0, Ordering::Release);
+        return InstallOutcome::CleanFailure;
+    };
+    let mut peers = match crate::sbc_trace::suspend_peers(completion, event) {
+        Ok(peers) => peers,
+        Err(crate::sbc_trace::QuiesceFailure::Acquire) => {
+            VirtualFree(completion_trampoline as _, 0, MEM_RELEASE);
+            VirtualFree(event_trampoline as _, 0, MEM_RELEASE);
+            COMPLETION_TRAMPOLINE.store(0, Ordering::Release);
+            EVENT_TRAMPOLINE.store(0, Ordering::Release);
+            return InstallOutcome::CleanFailure;
+        }
+        Err(crate::sbc_trace::QuiesceFailure::Resume) => {
+            return InstallOutcome::DegradedProcessState;
+        }
+    };
+    let final_valid = crate::sbc_trace::valid_cards_image(base)
+        && core::slice::from_raw_parts(completion as *const u8, COMPLETION_SIGNATURE.len())
+            == COMPLETION_SIGNATURE
+        && core::slice::from_raw_parts(event as *const u8, EVENT_SIGNATURE.len())
+            == EVENT_SIGNATURE;
+    let transaction = if !final_valid {
+        InstallOutcome::CleanFailure
+    } else {
+        match write_entry(
+            completion,
+            completion_wrapper as *const () as usize,
+            &completion_original,
+        ) {
+            Ok(()) => {
+                match write_entry(event, event_wrapper as *const () as usize, &EVENT_SIGNATURE) {
+                    Ok(()) => InstallOutcome::Installed,
+                    Err(event_clean) => {
+                        let completion_clean = restore_entry(completion, &completion_original);
+                        if event_clean && completion_clean {
+                            InstallOutcome::CleanFailure
+                        } else {
+                            InstallOutcome::DegradedHookActive
+                        }
+                    }
+                }
+            }
+            Err(true) => InstallOutcome::CleanFailure,
+            Err(false) => InstallOutcome::DegradedHookActive,
+        }
+    };
+    let resumed = peers.resume_all();
+    let outcome = if resumed {
+        transaction
+    } else if matches!(
+        transaction,
+        InstallOutcome::Installed | InstallOutcome::DegradedHookActive
+    ) {
+        InstallOutcome::DegradedHookAndProcess
+    } else {
+        InstallOutcome::DegradedProcessState
+    };
+    if outcome == InstallOutcome::CleanFailure {
+        VirtualFree(completion_trampoline as _, 0, MEM_RELEASE);
+        VirtualFree(event_trampoline as _, 0, MEM_RELEASE);
+        COMPLETION_TRAMPOLINE.store(0, Ordering::Release);
+        EVENT_TRAMPOLINE.store(0, Ordering::Release);
+    }
+    outcome
+}
+
+unsafe fn worker() {
+    let _pending = crate::sbc_trace::CodeInstallerPending;
+    let mut base = 0usize;
+    for _ in 0..600u32 {
+        base = GetModuleHandleA(c"CardsDLL_Win64_retail.dll".as_ptr().cast()) as usize;
+        if base != 0 {
+            break;
+        }
+        std::thread::sleep(std::time::Duration::from_millis(500));
+    }
+    let outcome = if base == 0 {
+        InstallOutcome::CleanFailure
+    } else {
+        install_pair(base)
+    };
+    drop(_pending);
+    match outcome {
+        InstallOutcome::Installed => crate::write_log(
+            "SBC_DISPATCH: completion+event hooks installed; repair remains gate-controlled\n",
+        ),
+        InstallOutcome::CleanFailure => {
+            crate::write_log("SBC_DISPATCH: clean install failure; inactive\n");
+            return;
+        }
+        InstallOutcome::DegradedHookActive => {
+            crate::write_log("SBC_DISPATCH: DEGRADED hook may be active; terminate game now\n");
+            return;
+        }
+        InstallOutcome::DegradedProcessState => {
+            crate::write_log("SBC_DISPATCH: DEGRADED thread state; terminate game now\n");
+            return;
+        }
+        InstallOutcome::DegradedHookAndProcess => {
+            crate::write_log("SBC_DISPATCH: DEGRADED hook and thread state; terminate game now\n");
+            return;
+        }
+    }
+
+    let mut completion_seen = 0u64;
+    let mut event_seen = 0u64;
+    let mut reports = 0u8;
+    while reports < 64 {
+        std::thread::sleep(std::time::Duration::from_millis(250));
+        let completion_entries = COMPLETION_ENTRIES.load(Ordering::Acquire);
+        let event_entries = EVENT_ENTRIES.load(Ordering::Acquire);
+        if completion_entries != completion_seen || event_entries != event_seen {
+            crate::write_log(&format!(
+                "SBC_DISPATCH: completion entry={} exit={} tid={} controller={:#x} status_obj={:#x} status={} generation={} decision={} rejection={}; event entry={} exit={} tid={} controller={:#x} id={:#x} payload={:#x} categories={} refresh={} ready={}\n",
+                completion_entries,
+                COMPLETION_EXITS.load(Ordering::Acquire),
+                COMPLETION_THREAD.load(Ordering::Relaxed),
+                COMPLETION_CONTROLLER.load(Ordering::Relaxed),
+                COMPLETION_STATUS_OBJECT.load(Ordering::Relaxed),
+                COMPLETION_STATUS.load(Ordering::Relaxed),
+                COMPLETION_GENERATION.load(Ordering::Relaxed),
+                COMPLETION_DECISION.load(Ordering::Relaxed),
+                COMPLETION_REJECTION.load(Ordering::Relaxed),
+                event_entries,
+                EVENT_EXITS.load(Ordering::Acquire),
+                EVENT_THREAD.load(Ordering::Relaxed),
+                EVENT_CONTROLLER.load(Ordering::Relaxed),
+                EVENT_ID.load(Ordering::Relaxed),
+                EVENT_PAYLOAD.load(Ordering::Relaxed),
+                EVENT_CATEGORIES.load(Ordering::Relaxed),
+                EVENT_REFRESH.load(Ordering::Relaxed),
+                EVENT_READY.load(Ordering::Relaxed),
+            ));
+            completion_seen = completion_entries;
+            event_seen = event_entries;
+            reports += 1;
+        }
+    }
+    crate::write_log("SBC_DISPATCH: report cap reached; hooks remain installed\n");
+}
+
+pub(crate) fn install() {
+    // Promoted: armed by the build. No environment variable participates in the
+    // decision, so every launch path behaves identically.
+    REPAIR_ENABLED.store(REPAIR_PROMOTED, Ordering::Release);
+    crate::write_log(
+        "SBC_DISPATCH: repair ARMED (promoted); strict native evidence gate enabled\n",
+    );
+    std::thread::spawn(|| unsafe { worker() });
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    fn valid_input(generation: u64) -> DecisionInput {
+        DecisionInput {
+            repair_enabled: true,
+            status: Some(UNKNOWN_TRANSPORT_STATUS),
+            status_present: true,
+            status_copyable: true,
+            cards_build_matches: true,
+            factory_entries: generation,
+            factory_exits: generation,
+            factory_result: 0x2000,
+            factory_thread: 7,
+            deserializer_entries: generation,
+            deserializer_exits: generation,
+            deserializer_this: 0x2000,
+            deserializer_reader: 0x3000,
+            deserializer_result: true,
+            deserializer_thread: 7,
+            response_class_matches: true,
+            model: 0x4000,
+            live_category_count: 2,
+            category_count: 2,
+            notifier_entries: generation,
+            notifier_exits: generation,
+            controller_matches: true,
+            controller_model_matches: true,
+            last_repaired_generation: generation - 1,
+        }
+    }
+
+    #[test]
+    fn native_success_is_never_rewritten() {
+        let mut input = valid_input(1);
+        input.status = Some(0);
+        assert_eq!(decide(input), Ok(Decision::NativeSuccess));
+    }
+
+    #[test]
+    fn exact_unknown_status_and_full_evidence_allow_repair() {
+        assert_eq!(decide(valid_input(1)), Ok(Decision::Repair));
+    }
+
+    #[test]
+    fn repair_is_exactly_gated_and_fail_closed() {
+        let mut input = valid_input(1);
+        input.repair_enabled = false;
+        assert_eq!(decide(input), Err(Rejection::RepairDisabled));
+
+        let mut input = valid_input(1);
+        input.status = Some(500);
+        assert_eq!(decide(input), Err(Rejection::UnsupportedStatus));
+
+        let mut input = valid_input(1);
+        input.category_count = 0;
+        assert_eq!(decide(input), Err(Rejection::ModelEmpty));
+
+        let mut input = valid_input(1);
+        input.controller_matches = false;
+        assert_eq!(decide(input), Err(Rejection::ControllerMismatch));
+
+        let mut input = valid_input(1);
+        input.status = None;
+        input.status_present = false;
+        assert_eq!(decide(input), Err(Rejection::NullStatus));
+
+        let mut input = valid_input(1);
+        input.status = None;
+        assert_eq!(decide(input), Err(Rejection::StatusUnreadable));
+
+        // Notifier still in flight for this generation (has not returned) is rejected:
+        // on the pinned build the completion only runs after the notifier unwinds.
+        let mut input = valid_input(1);
+        input.notifier_exits = 0;
+        assert_eq!(decide(input), Err(Rejection::NotifierNotCurrent));
+
+        // A notifier count that does not match the current generation is rejected.
+        let mut input = valid_input(1);
+        input.notifier_entries = 2;
+        input.notifier_exits = 2;
+        assert_eq!(decide(input), Err(Rejection::NotifierNotCurrent));
+
+        let mut input = valid_input(1);
+        input.controller_model_matches = false;
+        assert_eq!(decide(input), Err(Rejection::ControllerModelMismatch));
+
+        let mut input = valid_input(1);
+        input.live_category_count = 0;
+        assert_eq!(decide(input), Err(Rejection::ModelChanged));
+    }
+
+    #[test]
+    fn each_generation_is_one_shot_but_next_lifecycle_is_allowed() {
+        let mut duplicate = valid_input(1);
+        duplicate.last_repaired_generation = 1;
+        assert_eq!(decide(duplicate), Err(Rejection::DuplicateGeneration));
+
+        let next = valid_input(2);
+        assert_eq!(decide(next), Ok(Decision::Repair));
+    }
+
+    #[test]
+    fn response_class_requires_exact_pinned_vtable() {
+        let base = 0x1_8000_0000usize;
+        let expected = base + CATEGORY_RESPONSE_VTABLE_RVA;
+        assert!(response_class_matches(base, expected));
+        // An unreadable capture (zero) never qualifies.
+        assert!(!response_class_matches(base, 0));
+        // Any other vtable (e.g. a sub-object or a freed/reused slot) is rejected.
+        assert!(!response_class_matches(base, expected + 8));
+        assert!(!response_class_matches(base, base));
+    }
+
+    #[test]
+    fn relocated_completion_branch_has_proven_layout() {
+        assert_eq!(COMPLETION_COPY_LEN, 14);
+        assert_eq!(
+            &COMPLETION_SIGNATURE[..12],
+            &[0x40, 0x53, 0x48, 0x83, 0xec, 0x20, 0x48, 0x8b, 0xd9, 0x48, 0x85, 0xd2]
+        );
+        assert_eq!(&COMPLETION_SIGNATURE[12..14], &[0x74, 0x4e]);
+        assert_eq!(COMPLETION_TRAMPOLINE_LEN, 42);
+    }
+}

openfut-hook/src/sbc_hook.rs

@@ -4,30 +4,24 @@
 //! (all addresses, RVA math, call order, crash risks, staged test plan):
 //!   fifa17-recon/docs/sbc-hook-dll-spec.md
 //!
-//! Everything here is **inert by default** and gated by env vars, so shipping the DLL
-//! with this module compiled in changes nothing unless a var is set:
+//! Everything here is **inert by default** and gated by env vars:
 //!   OPENFUT_SBC_HOOK=1       -> arm the deferred worker (resolve + log; READ-ONLY)
 //!   OPENFUT_SBC_ARM_ONLY=1   -> Tier-0 negative control: write BYTE[B+0x28]=1 (renders EMPTY)
-//!   OPENFUT_SBC_COMMIT=1     -> after proven native parse success, arm populated M
 //!   OPENFUT_SBC_POPULATE=1   -> legacy Tier-1 gate: BLOCKED (logs corrected trace gap, returns)
 //!
 //! CardsDLL_Win64_retail.dll is loaded lazily (only on entering Ultimate Team), so we
-//! defer off the loader lock and poll for it — the same shape as
-//! `probe::install_probes_deferred` polling for anadius64.dll.
+//! defer off the loader lock and poll for it in a background thread.
 //!
 //! ── Address model (static VAs; PE image base 0x180000000) ────────────────────────
 //! All values below are RVAs (VA_static - 0x180000000); live = cards_base + rva.
 //! See the spec for the verified disassembly behind each one.
 
 use core::sync::atomic::{AtomicBool, AtomicUsize, Ordering};
-use windows_sys::Win32::System::Diagnostics::Debug::FlushInstructionCache;
 use windows_sys::Win32::System::LibraryLoader::GetModuleHandleA;
 use windows_sys::Win32::System::Memory::{
-    VirtualProtect, VirtualQuery, MEMORY_BASIC_INFORMATION, MEM_COMMIT, PAGE_EXECUTE_READ,
-    PAGE_EXECUTE_READWRITE, PAGE_EXECUTE_WRITECOPY, PAGE_GUARD, PAGE_NOACCESS, PAGE_READWRITE,
-    PAGE_WRITECOPY,
+    VirtualQuery, MEMORY_BASIC_INFORMATION, MEM_COMMIT, PAGE_EXECUTE_READ, PAGE_EXECUTE_READWRITE,
+    PAGE_EXECUTE_WRITECOPY, PAGE_GUARD, PAGE_NOACCESS, PAGE_READWRITE, PAGE_WRITECOPY,
 };
-use windows_sys::Win32::System::Threading::{GetCurrentProcess, GetCurrentThreadId};
 
 // ── RVAs (verified byte-exact against /tmp/fut/cardsdll.dll this pass) ────────────
 const IMAGE_BASE: usize = 0x180000000;
@@ -46,13 +40,6 @@ const B_READY_OFF: usize = 0x28; //     B+0x28 ready byte (the isValid gate)
 const B_COLL_OFF: usize = 0x08; //      B+0x08 collection ptr (MUST stay 0 — see spec §4/C5)
 const M_CACHE_OFF: usize = 0x20a68; //  M = *(A + 0x20a68) (render source; per-session heap)
 const M_COUNT_OFF: usize = 0x50; //     WORD[M+0x50] category count
-const SBC_CONTROLLER_VTABLE_RVA: usize = 0x20a820;
-const SBC_CONTROLLER_EVENT_VTABLE_RVA: usize = 0x20a888;
-const SBC_CONTROLLER_EVENT_SUBOBJECT_OFF: usize = 0x138;
-const SBC_CONTROLLER_MODEL_OFF: usize = 0x140;
-const SBC_COMPLETION_STATUS_JNE_RVA: usize = 0x0b8962;
-const SBC_COMPLETION_STATUS_JNE: [u8; 2] = [0x75, 0x48];
-const SBC_COMPLETION_STATUS_FALLTHROUGH: [u8; 2] = [0x90, 0x90];
 const B_DTOR_RVA: usize = 0x63040;
 const B_ISVALID_RVA: usize = 0x65d40;
 const B_CLEAR_RVA: usize = 0x65d20;
@@ -87,13 +74,14 @@ mod rva {
 
 static ARMED: AtomicBool = AtomicBool::new(false);
 static ARM_ONLY: AtomicBool = AtomicBool::new(false);
-static COMMIT: AtomicBool = AtomicBool::new(false);
 static POPULATE: AtomicBool = AtomicBool::new(false);
 static DONE: AtomicBool = AtomicBool::new(false);
 static CARDS_BASE: AtomicUsize = AtomicUsize::new(0);
-static SBC_CONTROLLER: AtomicUsize = AtomicUsize::new(0);
 static STATE: AtomicUsize = AtomicUsize::new(RuntimeState::Disabled as usize);
 
+// Full SBC state model. The live repair jumps Resolved -> Validated -> Committed;
+// Intercepted/Parsed document the intermediate states but are never entered.
+#[allow(dead_code)]
 #[derive(Clone, Copy, Debug, Eq, PartialEq)]
 #[repr(usize)]
 enum RuntimeState {
@@ -147,13 +135,6 @@ enum ValidationError {
     CollectionUnreadable,
     CollectionNotNull,
     ReadyByteNotWritable,
-    ModelEmpty,
-    ControllerMissing,
-    ControllerVtableMismatch,
-    ControllerModelMismatch,
-    CompletionBranchMismatch,
-    CompletionBranchProtectFailed,
-    CompletionBranchFlushFailed,
 }
 
 #[derive(Clone, Copy, Debug)]
@@ -213,7 +194,7 @@ fn validate_snapshot(base: usize, s: &RuntimeSnapshot) -> Result<(), ValidationE
     Ok(())
 }
 
-/// Fault-safe pointer read (mirrors `probe::read_ptr`): returns None unless `ptr` lands
+/// Fault-safe pointer read: returns None unless `ptr` lands
 /// in a committed, readable page and the full 8 bytes fit inside the region.
 unsafe fn read_ptr(ptr: usize) -> Option<usize> {
     if ptr < 0x10000 || ptr & 7 != 0 {
@@ -283,6 +264,8 @@ unsafe fn writable_u8(ptr: usize) -> bool {
             .is_some_and(|end| end <= (mbi.BaseAddress as usize).saturating_add(mbi.RegionSize))
 }
 
+// Fault-safe executable-range check retained with the address model; not currently wired.
+#[allow(dead_code)]
 unsafe fn executable_range(ptr: usize, len: usize) -> bool {
     let Some(end) = ptr.checked_add(len) else {
         return false;
@@ -313,12 +296,12 @@ unsafe fn read_u16(ptr: usize) -> Option<u16> {
 /// Resolve CardsDLL's runtime base, or 0. Tries the exact loaded name; the ToolHelp
 /// fallback (name-contains "CardsDLL") lives in the spec — add it if EA ever renames.
 unsafe fn resolve_cards_base() -> usize {
-    let h = GetModuleHandleA(b"CardsDLL_Win64_retail.dll\0".as_ptr());
+    let h = GetModuleHandleA(c"CardsDLL_Win64_retail.dll".as_ptr().cast());
     if !h.is_null() {
         return h as usize;
     }
     // Also try the short form some tooling reports.
-    let h2 = GetModuleHandleA(b"CardsDLL.dll\0".as_ptr());
+    let h2 = GetModuleHandleA(c"CardsDLL.dll".as_ptr().cast());
     if !h2.is_null() {
         return h2 as usize;
     }
@@ -428,12 +411,6 @@ pub fn install() {
             .unwrap_or(false),
         Ordering::Relaxed,
     );
-    COMMIT.store(
-        std::env::var("OPENFUT_SBC_COMMIT")
-            .map(|v| v == "1")
-            .unwrap_or(false),
-        Ordering::Relaxed,
-    );
     POPULATE.store(
         std::env::var("OPENFUT_SBC_POPULATE")
             .map(|v| v == "1")
@@ -444,192 +421,6 @@ pub fn install() {
     std::thread::spawn(|| unsafe { worker() });
 }
 
-/// Records the concrete SBC controller observed registering FUT_SBS_CATEGORIES.
-/// The registration hook is observational; all structural checks happen again on
-/// the notifier thread before this address is trusted.
-pub(crate) unsafe fn note_sbc_controller(controller: usize) {
-    let base = CARDS_BASE.load(Ordering::Acquire);
-    let valid = base != 0
-        && read_ptr(controller) == base.checked_add(SBC_CONTROLLER_VTABLE_RVA)
-        && controller
-            .checked_add(SBC_CONTROLLER_EVENT_SUBOBJECT_OFF)
-            .and_then(|p| read_ptr(p))
-            == base.checked_add(SBC_CONTROLLER_EVENT_VTABLE_RVA);
-    if valid {
-        SBC_CONTROLLER.store(controller, Ordering::Release);
-        crate::write_log(&format!(
-            "SBC_CONTROLLER_TRACE: captured controller={controller:#x}\n"
-        ));
-    } else {
-        crate::write_log(&format!(
-            "SBC_CONTROLLER_TRACE: rejected controller={controller:#x} (vtable mismatch)\n"
-        ));
-    }
-}
-
-unsafe fn log_controller_model(native_model: usize) {
-    let controller = SBC_CONTROLLER.load(Ordering::Acquire);
-    let controller_model = controller
-        .checked_add(SBC_CONTROLLER_MODEL_OFF)
-        .and_then(|p| read_ptr(p))
-        .unwrap_or(0);
-    let main_vtable = read_ptr(controller).unwrap_or(0);
-    let event_vtable = controller
-        .checked_add(SBC_CONTROLLER_EVENT_SUBOBJECT_OFF)
-        .and_then(|p| read_ptr(p))
-        .unwrap_or(0);
-    crate::write_log(&format!(
-        "SBC_CONTROLLER_TRACE: notifier controller={controller:#x} main_vt={main_vtable:#x} event_vt={event_vtable:#x} controller_M={controller_model:#x} parsed_M={native_model:#x} match={}\n",
-        controller != 0 && controller_model == native_model,
-    ));
-}
-
-unsafe fn validated_sbc_controller(
-    base: usize,
-    native_model: usize,
-) -> Result<usize, ValidationError> {
-    let controller = SBC_CONTROLLER.load(Ordering::Acquire);
-    if controller == 0 {
-        return Err(ValidationError::ControllerMissing);
-    }
-    if read_ptr(controller) != base.checked_add(SBC_CONTROLLER_VTABLE_RVA)
-        || controller
-            .checked_add(SBC_CONTROLLER_EVENT_SUBOBJECT_OFF)
-            .and_then(|p| read_ptr(p))
-            != base.checked_add(SBC_CONTROLLER_EVENT_VTABLE_RVA)
-    {
-        return Err(ValidationError::ControllerVtableMismatch);
-    }
-    if controller
-        .checked_add(SBC_CONTROLLER_MODEL_OFF)
-        .and_then(|p| read_ptr(p))
-        != Some(native_model)
-    {
-        return Err(ValidationError::ControllerModelMismatch);
-    }
-    Ok(controller)
-}
-
-/// Route the already-scheduled category completion through CardsDLL's own success
-/// branch. The original function first rejects a non-zero status with a two-byte
-/// `jne ServerErrSets`; after a separately proven native parse, that status belongs
-/// to the stale scheduler completion rather than the category HTTP transaction.
-unsafe fn arm_native_completion_success(base: usize) -> Result<(), ValidationError> {
-    let target = base
-        .checked_add(SBC_COMPLETION_STATUS_JNE_RVA)
-        .ok_or(ValidationError::AddressOverflow)?;
-    if !executable_range(target, SBC_COMPLETION_STATUS_JNE.len())
-        || core::slice::from_raw_parts(target as *const u8, SBC_COMPLETION_STATUS_JNE.len())
-            != SBC_COMPLETION_STATUS_JNE
-    {
-        return Err(ValidationError::CompletionBranchMismatch);
-    }
-    let mut old = 0u32;
-    if VirtualProtect(
-        target as _,
-        SBC_COMPLETION_STATUS_FALLTHROUGH.len(),
-        PAGE_EXECUTE_READWRITE,
-        &mut old,
-    ) == 0
-    {
-        return Err(ValidationError::CompletionBranchProtectFailed);
-    }
-    core::ptr::copy_nonoverlapping(
-        SBC_COMPLETION_STATUS_FALLTHROUGH.as_ptr(),
-        target as *mut u8,
-        SBC_COMPLETION_STATUS_FALLTHROUGH.len(),
-    );
-    let flushed = FlushInstructionCache(
-        GetCurrentProcess(),
-        target as _,
-        SBC_COMPLETION_STATUS_FALLTHROUGH.len(),
-    ) != 0;
-    let mut ignored = 0u32;
-    let protected = VirtualProtect(
-        target as _,
-        SBC_COMPLETION_STATUS_FALLTHROUGH.len(),
-        old,
-        &mut ignored,
-    ) != 0;
-    if !flushed || !protected {
-        return Err(ValidationError::CompletionBranchFlushFailed);
-    }
-    crate::write_log(&format!(
-        "SBC_HOOK: armed native completion success branch at {target:#x} tid={}\n",
-        GetCurrentThreadId(),
-    ));
-    Ok(())
-}
-
-/// Commit the already-populated native SBC model after the category success notifier.
-///
-/// This is called synchronously by the passive notifier wrapper *after* the original
-/// notifier returns. It never invokes a parser or constructs game objects. The only
-/// mutation is the established cache-ready byte, and only when the normal parser has
-/// produced at least one category and every pointer/vtable invariant still matches.
-pub(crate) unsafe fn commit_after_native_parse() {
-    if !COMMIT.load(Ordering::Acquire) {
-        return;
-    }
-    let base = CARDS_BASE.load(Ordering::Acquire);
-    if base == 0 || !control_matches(base) {
-        set_failed(ValidationError::AUnreadable);
-        return;
-    }
-    let snapshot = match runtime_snapshot(base).and_then(|snapshot| {
-        validate_snapshot(base, &snapshot)?;
-        if snapshot.m == 0
-            || read_u16(snapshot.m + M_COUNT_OFF)
-                .filter(|&count| count > 0)
-                .is_none()
-        {
-            return Err(ValidationError::ModelEmpty);
-        }
-        if !writable_u8(snapshot.b + B_READY_OFF) {
-            return Err(ValidationError::ReadyByteNotWritable);
-        }
-        Ok(snapshot)
-    }) {
-        Ok(snapshot) => snapshot,
-        Err(error) => {
-            set_failed(error);
-            return;
-        }
-    };
-    let count = read_u16(snapshot.m + M_COUNT_OFF).unwrap_or(0);
-    log_controller_model(snapshot.m);
-    if DONE.swap(true, Ordering::AcqRel) {
-        return;
-    }
-    crate::write_log(&format!(
-        "SBC_HOOK: post-parse commit -> M={:#x} categories={} BYTE[{:#x}]=1\n",
-        snapshot.m,
-        count,
-        snapshot.b + B_READY_OFF,
-    ));
-    core::ptr::write_volatile((snapshot.b + B_READY_OFF) as *mut u8, 1);
-    if read_u8(snapshot.b + B_READY_OFF) != Some(1)
-        || !transition(RuntimeState::Validated, RuntimeState::Committed)
-    {
-        set_failed(ValidationError::ReadyByteUnexpected);
-        return;
-    }
-    let _controller = match validated_sbc_controller(base, snapshot.m) {
-        Ok(controller) => controller,
-        Err(error) => {
-            set_failed(error);
-            return;
-        }
-    };
-    if let Err(error) = arm_native_completion_success(base) {
-        set_failed(error);
-        return;
-    }
-    crate::write_log(
-        "SBC_HOOK: post-parse commit DONE; awaiting CardsDLL native completion events\n",
-    );
-}
-
 /// Deferred worker: waits (up to ~5 min) for CardsDLL to load — it only appears when
 /// the user enters Ultimate Team — then runs the resolve/log (+ optional Tier-0 arm)
 /// exactly once.

openfut-hook/src/sbc_request_trace.rs

@@ -367,7 +367,7 @@ unsafe fn worker() {
     }
     let mut base = 0usize;
     for _ in 0..600u32 {
-        base = GetModuleHandleA(b"CardsDLL_Win64_retail.dll\0".as_ptr()) as usize;
+        base = GetModuleHandleA(c"CardsDLL_Win64_retail.dll".as_ptr().cast()) as usize;
         if base != 0 {
             break;
         }

openfut-hook/src/sbc_trace.rs

@@ -29,6 +29,7 @@ pub(crate) const CATEGORY_FACTORY_RVA: usize = 0x17aa10;
 pub(crate) const CATEGORY_DESERIALIZER_RVA: usize = 0x17b2b0;
 const COPY_LEN: usize = 19;
 const ABS_JUMP_LEN: usize = 14;
+#[allow(dead_code)] // documents the relocated-prologue trampoline size (COPY_LEN + jump)
 const TRAMPOLINE_LEN: usize = COPY_LEN + ABS_JUMP_LEN;
 const NOTIFIER_RVA: usize = 0x17aa80;
 const NOTIFIER_COPY_LEN: usize = 15;
@@ -80,6 +81,7 @@ static TRACE_BASE: AtomicUsize = AtomicUsize::new(0);
 static DESERIALIZER_EXIT_M: AtomicUsize = AtomicUsize::new(0);
 static DESERIALIZER_EXIT_COUNT: AtomicUsize = AtomicUsize::new(0);
 static DESERIALIZER_EXIT_B_READY: AtomicUsize = AtomicUsize::new(usize::MAX);
+static DESERIALIZER_EXIT_RESPONSE_VTABLE: AtomicUsize = AtomicUsize::new(0);
 static NOTIFIER_TRAMPOLINE: AtomicUsize = AtomicUsize::new(0);
 static CONTROLLER_REGISTER_TRAMPOLINE: AtomicUsize = AtomicUsize::new(0);
 static NOTIFIER_ENTRIES: AtomicU64 = AtomicU64::new(0);
@@ -93,7 +95,7 @@ static NOTIFIER_COUNT: AtomicUsize = AtomicUsize::new(usize::MAX);
 static PATCH_INSTALLER_BUSY: AtomicBool = AtomicBool::new(false);
 static CODE_PATCH_PENDING: AtomicUsize = AtomicUsize::new(0);
 
-struct PatchInstallerGate;
+pub(crate) struct PatchInstallerGate;
 
 impl Drop for PatchInstallerGate {
     fn drop(&mut self) {
@@ -101,7 +103,7 @@ impl Drop for PatchInstallerGate {
     }
 }
 
-fn acquire_patch_installer_gate() -> Option<PatchInstallerGate> {
+pub(crate) fn acquire_patch_installer_gate() -> Option<PatchInstallerGate> {
     for _ in 0..200 {
         if PATCH_INSTALLER_BUSY
             .compare_exchange(false, true, Ordering::AcqRel, Ordering::Acquire)
@@ -114,7 +116,7 @@ fn acquire_patch_installer_gate() -> Option<PatchInstallerGate> {
     None
 }
 
-struct CodeInstallerPending;
+pub(crate) struct CodeInstallerPending;
 
 impl Drop for CodeInstallerPending {
     fn drop(&mut self) {
@@ -138,15 +140,15 @@ enum TraceState {
     DegradedHookAndProcess,
 }
 
-fn env_enabled(value: Option<&str>) -> bool {
+pub(crate) fn env_enabled(value: Option<&str>) -> bool {
     matches!(value, Some("1"))
 }
 
-fn target_va(base: usize, rva: usize) -> Option<usize> {
+pub(crate) fn target_va(base: usize, rva: usize) -> Option<usize> {
     base.checked_add(rva)
 }
 
-fn absolute_jump(destination: usize) -> [u8; ABS_JUMP_LEN] {
+pub(crate) fn absolute_jump(destination: usize) -> [u8; ABS_JUMP_LEN] {
     let mut jump = [0u8; ABS_JUMP_LEN];
     jump[..6].copy_from_slice(&[0xff, 0x25, 0, 0, 0, 0]);
     jump[6..].copy_from_slice(&(destination as u64).to_le_bytes());
@@ -160,7 +162,7 @@ fn instruction_pointer_in_span(rip: usize, target: usize) -> bool {
         .unwrap_or(true)
 }
 
-struct SuspendedPeers {
+pub(crate) struct SuspendedPeers {
     handles: [HANDLE; MAX_PEERS],
     tids: [u32; MAX_PEERS],
     count: usize,
@@ -179,7 +181,7 @@ impl SuspendedPeers {
         self.tids[..self.count].contains(&tid)
     }
 
-    unsafe fn resume_all(&mut self) -> bool {
+    pub(crate) unsafe fn resume_all(&mut self) -> bool {
         let mut all_resumed = true;
         for index in (0..self.count).rev() {
             let handle = self.handles[index];
@@ -208,14 +210,14 @@ impl Drop for SuspendedPeers {
 }
 
 #[derive(Clone, Copy, Debug, Eq, PartialEq)]
-enum QuiesceFailure {
+pub(crate) enum QuiesceFailure {
     Acquire,
     Resume,
 }
 
 /// Stop and inspect every peer thread before touching either entry point. Any
 /// incomplete enumeration/access/context operation fails the transaction closed.
-unsafe fn suspend_peers(
+pub(crate) unsafe fn suspend_peers(
     factory: usize,
     deserializer: usize,
 ) -> Result<SuspendedPeers, QuiesceFailure> {
@@ -329,7 +331,7 @@ unsafe fn executable_range(address: usize, length: usize) -> bool {
     ) && end <= mbi.BaseAddress as usize + mbi.RegionSize
 }
 
-unsafe fn executable_range_in_image(base: usize, address: usize, length: usize) -> bool {
+pub(crate) unsafe fn executable_range_in_image(base: usize, address: usize, length: usize) -> bool {
     let Some(end) = address.checked_add(length) else {
         return false;
     };
@@ -347,7 +349,7 @@ unsafe fn executable_range_in_image(base: usize, address: usize, length: usize)
         && end <= mbi.BaseAddress as usize + mbi.RegionSize
 }
 
-unsafe fn readable_range(address: usize, length: usize) -> bool {
+pub(crate) unsafe fn readable_range(address: usize, length: usize) -> bool {
     let Some(end) = address.checked_add(length) else {
         return false;
     };
@@ -362,20 +364,20 @@ unsafe fn readable_range(address: usize, length: usize) -> bool {
         && end <= mbi.BaseAddress as usize + mbi.RegionSize
 }
 
-unsafe fn guarded_usize(address: usize) -> Option<usize> {
+pub(crate) unsafe fn guarded_usize(address: usize) -> Option<usize> {
     (address & 7 == 0 && readable_range(address, 8))
         .then(|| core::ptr::read_volatile(address as *const usize))
 }
 
-unsafe fn guarded_u16(address: usize) -> Option<u16> {
+pub(crate) unsafe fn guarded_u16(address: usize) -> Option<u16> {
     readable_range(address, 2).then(|| core::ptr::read_volatile(address as *const u16))
 }
 
-unsafe fn guarded_u8(address: usize) -> Option<u8> {
+pub(crate) unsafe fn guarded_u8(address: usize) -> Option<u8> {
     readable_range(address, 1).then(|| core::ptr::read_volatile(address as *const u8))
 }
 
-unsafe fn valid_cards_image(base: usize) -> bool {
+pub(crate) unsafe fn valid_cards_image(base: usize) -> bool {
     let Some(control) = base.checked_add(CONTROL_RVA) else {
         return false;
     };
@@ -413,7 +415,7 @@ unsafe fn signature_matches(target: usize, signature: &[u8; 32]) -> bool {
     core::slice::from_raw_parts(target as *const u8, signature.len()) == signature
 }
 
-unsafe fn allocate_trampoline(target: usize, copy_len: usize) -> Option<usize> {
+pub(crate) unsafe fn allocate_trampoline(target: usize, copy_len: usize) -> Option<usize> {
     let trampoline_len = copy_len.checked_add(ABS_JUMP_LEN)?;
     let memory = VirtualAlloc(
         core::ptr::null(),
@@ -595,7 +597,10 @@ unsafe extern "system" fn controller_register_wrapper(controller: *mut c_void, e
         core::mem::transmute(CONTROLLER_REGISTER_TRAMPOLINE.load(Ordering::Acquire));
     original(controller, event);
     if event == FUT_SBS_CATEGORIES_EVENT {
-        crate::sbc_hook::note_sbc_controller(controller as usize);
+        crate::sbc_dispatch::note_sbc_controller(
+            controller as usize,
+            TRACE_BASE.load(Ordering::Acquire),
+        );
     }
 }
 
@@ -630,7 +635,6 @@ unsafe extern "system" fn notifier_wrapper(ctx: *mut c_void) {
     let original: unsafe extern "system" fn(*mut c_void) =
         core::mem::transmute(NOTIFIER_TRAMPOLINE.load(Ordering::Acquire));
     original(ctx);
-    crate::sbc_hook::commit_after_native_parse();
     NOTIFIER_BYTE_AFTER.store(
         address
             .checked_add(0x88)
@@ -682,12 +686,54 @@ unsafe extern "system" fn deserializer_wrapper(this: *mut c_void, reader: *mut c
         .and_then(|slot| guarded_u8(slot))
         .map(usize::from)
         .unwrap_or(usize::MAX);
+    let response_vtable = guarded_usize(this as usize).unwrap_or(0);
     DESERIALIZER_EXIT_M.store(m, Ordering::Relaxed);
     DESERIALIZER_EXIT_COUNT.store(count, Ordering::Relaxed);
     DESERIALIZER_EXIT_B_READY.store(ready, Ordering::Relaxed);
+    DESERIALIZER_EXIT_RESPONSE_VTABLE.store(response_vtable, Ordering::Relaxed);
     DESERIALIZER_EXITS.fetch_add(1, Ordering::Release);
     result
 }
+#[derive(Clone, Copy, Debug)]
+pub(crate) struct DispatchEvidence {
+    pub(crate) base: usize,
+    pub(crate) factory_entries: u64,
+    pub(crate) factory_exits: u64,
+    pub(crate) factory_result: usize,
+    pub(crate) factory_thread: usize,
+    pub(crate) deserializer_entries: u64,
+    pub(crate) deserializer_exits: u64,
+    pub(crate) deserializer_this: usize,
+    pub(crate) deserializer_reader: usize,
+    pub(crate) deserializer_result: bool,
+    pub(crate) deserializer_thread: usize,
+    pub(crate) response_vtable: usize,
+    pub(crate) model: usize,
+    pub(crate) category_count: usize,
+    pub(crate) notifier_entries: u64,
+    pub(crate) notifier_exits: u64,
+}
+
+pub(crate) fn dispatch_evidence() -> DispatchEvidence {
+    DispatchEvidence {
+        base: TRACE_BASE.load(Ordering::Acquire),
+        factory_entries: FACTORY_ENTRIES.load(Ordering::Acquire),
+        factory_exits: FACTORY_EXITS.load(Ordering::Acquire),
+        factory_result: FACTORY_LAST_RESULT.load(Ordering::Acquire),
+        factory_thread: FACTORY_LAST_THREAD.load(Ordering::Relaxed),
+        deserializer_entries: DESERIALIZER_ENTRIES.load(Ordering::Acquire),
+        deserializer_exits: DESERIALIZER_EXITS.load(Ordering::Acquire),
+        deserializer_this: DESERIALIZER_LAST_THIS.load(Ordering::Relaxed),
+        deserializer_reader: DESERIALIZER_LAST_READER.load(Ordering::Relaxed),
+        deserializer_result: DESERIALIZER_LAST_RESULT.load(Ordering::Acquire),
+        deserializer_thread: DESERIALIZER_LAST_THREAD.load(Ordering::Relaxed),
+        response_vtable: DESERIALIZER_EXIT_RESPONSE_VTABLE.load(Ordering::Relaxed),
+        model: DESERIALIZER_EXIT_M.load(Ordering::Relaxed),
+        category_count: DESERIALIZER_EXIT_COUNT.load(Ordering::Relaxed),
+        notifier_entries: NOTIFIER_ENTRIES.load(Ordering::Acquire),
+        notifier_exits: NOTIFIER_EXITS.load(Ordering::Acquire),
+    }
+}
 
 #[derive(Clone, Copy, Debug, Eq, PartialEq)]
 enum InstallOutcome {
@@ -839,7 +885,7 @@ unsafe fn worker() {
     let _pending = CodeInstallerPending;
     let mut base = 0usize;
     for _ in 0..600u32 {
-        base = GetModuleHandleA(b"CardsDLL_Win64_retail.dll\0".as_ptr()) as usize;
+        base = GetModuleHandleA(c"CardsDLL_Win64_retail.dll".as_ptr().cast()) as usize;
         if base != 0 {
             break;
         }
@@ -926,7 +972,7 @@ unsafe fn notifier_worker() {
     let _pending = CodeInstallerPending;
     let mut base = 0usize;
     for _ in 0..600u32 {
-        base = GetModuleHandleA(b"CardsDLL_Win64_retail.dll\0".as_ptr()) as usize;
+        base = GetModuleHandleA(c"CardsDLL_Win64_retail.dll".as_ptr().cast()) as usize;
         if base != 0 {
             break;
         }
@@ -1029,7 +1075,7 @@ unsafe fn controller_register_worker() {
     let _pending = CodeInstallerPending;
     let mut base = 0usize;
     for _ in 0..600u32 {
-        base = GetModuleHandleA(b"CardsDLL_Win64_retail.dll\0".as_ptr()) as usize;
+        base = GetModuleHandleA(c"CardsDLL_Win64_retail.dll".as_ptr().cast()) as usize;
         if base != 0 {
             break;
         }
@@ -1103,10 +1149,17 @@ fn install_notifier(enabled: bool) {
 }
 
 pub(crate) fn install() {
-    let enabled = env_enabled(std::env::var("OPENFUT_SBC_TRACE").ok().as_deref());
-    let notifier_enabled = env_enabled(std::env::var("OPENFUT_SBC_NOTIFIER_TRACE").ok().as_deref());
+    // The repair's evidence traces (parser, notifier, controller registration) are
+    // its decision inputs, so they follow the promoted repair, not an env var.
+    let dispatch_repair = crate::sbc_dispatch::REPAIR_PROMOTED;
+    let dispatch_trace =
+        dispatch_repair || env_enabled(std::env::var("OPENFUT_SBC_DISPATCH_TRACE").ok().as_deref());
+    let enabled =
+        dispatch_repair || env_enabled(std::env::var("OPENFUT_SBC_TRACE").ok().as_deref());
+    let notifier_enabled =
+        dispatch_repair || env_enabled(std::env::var("OPENFUT_SBC_NOTIFIER_TRACE").ok().as_deref());
     CODE_PATCH_PENDING.store(
-        enabled as usize + (notifier_enabled as usize * 2),
+        enabled as usize + (notifier_enabled as usize * 2) + dispatch_trace as usize,
         Ordering::Release,
     );
     install_notifier(notifier_enabled);

openfut-hook/src/season_trace.rs

@@ -0,0 +1,619 @@
+//! Passive, behavior-preserving diagnostic traces for FIFA 17's offline-season
+//! entry flow.
+//!
+//! RE (2026-08-19, live memory) placed the "problem communicating with the FIFA
+//! Ultimate Team servers" modal in the `futOfflineSeasonEntry` ActionScript's
+//! season-load path. A first trace on the load completion `FUN_1800578e0`
+//! (`0x578e0`) armed but NEVER fired on an entry attempt — so the modal is raised
+//! before that callback runs. These traces log the actual CardsDLL season-native
+//! call sequence (which functions the entry screen reaches, and in what order) so
+//! we can see exactly where the flow stops/fails. Every trace is read-only: it
+//! logs, then calls the original through a trampoline; it never alters control
+//! flow. Targets are chosen so their copied prologues are position-independent
+//! (no rip-relative / rel32 in the copied bytes).
+
+use core::sync::atomic::{AtomicUsize, Ordering};
+
+use windows_sys::Win32::System::Diagnostics::Debug::FlushInstructionCache;
+use windows_sys::Win32::System::LibraryLoader::GetModuleHandleA;
+use windows_sys::Win32::System::Memory::{
+    VirtualAlloc, VirtualProtect, MEM_COMMIT, MEM_RESERVE, PAGE_EXECUTE_READ,
+    PAGE_EXECUTE_READWRITE, PAGE_READWRITE,
+};
+use windows_sys::Win32::System::Threading::GetCurrentProcess;
+
+use crate::sbc_trace::{
+    absolute_jump, allocate_trampoline, readable_range, target_va, validate_cards_build,
+};
+use crate::write_log;
+
+static REPORTS: AtomicUsize = AtomicUsize::new(0);
+
+unsafe fn rd_i32(addr: usize) -> Option<i32> {
+    readable_range(addr, 4).then(|| core::ptr::read_volatile(addr as *const i32))
+}
+unsafe fn rd_u8(addr: usize) -> Option<u8> {
+    readable_range(addr, 1).then(|| core::ptr::read_volatile(addr as *const u8))
+}
+/// Read a NUL-terminated string safely (bounded, only reads mapped bytes).
+unsafe fn rd_cstr(addr: usize, max: usize) -> String {
+    if addr == 0 || !readable_range(addr, 1) {
+        return String::from("<unreadable>");
+    }
+    let mut out = Vec::new();
+    let mut i = 0;
+    while i < max && readable_range(addr + i, 1) {
+        let b = core::ptr::read_volatile((addr + i) as *const u8);
+        if b == 0 {
+            break;
+        }
+        out.push(b);
+        i += 1;
+    }
+    String::from_utf8_lossy(&out).into_owned()
+}
+
+/// Generic passive detour: overwrite the first `copy_len` bytes of `target` (which
+/// MUST be whole, position-independent instructions) with an absolute jump to
+/// `wrapper`; the wrapper calls the trampoline (copied prologue + jump back).
+unsafe fn install_detour(
+    base: usize,
+    rva: usize,
+    name: &str,
+    copy_len: usize,
+    signature: &[u8],
+    wrapper: usize,
+    trampoline_slot: &AtomicUsize,
+) -> bool {
+    let Some(target) = target_va(base, rva) else {
+        write_log(&format!("SEASON_TRACE: {name}: VA overflow\n"));
+        return false;
+    };
+    if !readable_range(target, copy_len)
+        || core::slice::from_raw_parts(target as *const u8, copy_len) != signature
+    {
+        write_log(&format!(
+            "SEASON_TRACE: {name}: prologue signature mismatch at {target:#x}; skip\n"
+        ));
+        return false;
+    }
+    let Some(trampoline) = allocate_trampoline(target, copy_len) else {
+        write_log(&format!("SEASON_TRACE: {name}: trampoline alloc failed\n"));
+        return false;
+    };
+    trampoline_slot.store(trampoline, Ordering::Release);
+    let mut patch = [0x90u8; 24];
+    let jump = absolute_jump(wrapper);
+    patch[..jump.len()].copy_from_slice(&jump);
+    let mut old = 0u32;
+    if VirtualProtect(target as _, copy_len, PAGE_EXECUTE_READWRITE, &mut old) == 0 {
+        write_log(&format!("SEASON_TRACE: {name}: VirtualProtect failed\n"));
+        return false;
+    }
+    core::ptr::copy_nonoverlapping(patch.as_ptr(), target as *mut u8, copy_len);
+    let flushed = FlushInstructionCache(GetCurrentProcess(), target as _, copy_len) != 0;
+    let mut ignored = 0u32;
+    VirtualProtect(target as _, copy_len, old, &mut ignored);
+    if flushed {
+        write_log(&format!(
+            "SEASON_TRACE: {name}: installed at {target:#x} (tramp {trampoline:#x})\n"
+        ));
+        true
+    } else {
+        write_log(&format!("SEASON_TRACE: {name}: flush failed\n"));
+        false
+    }
+}
+
+fn log_call(name: &str, rcx: usize, rdx: usize, r8: usize) {
+    let n = REPORTS.fetch_add(1, Ordering::Relaxed);
+    if n < 64 {
+        write_log(&format!(
+            "SEASON_CALL: {name} rcx={rcx:#x} rdx={rdx:#x} r8={r8:#x}\n"
+        ));
+    }
+}
+
+/// Declare a passive 4-register-arg call trace. The wrapper is entered via the
+/// abs-jump patched over the target prologue (original args in rcx/rdx/r8/r9,
+/// caller's return address on the stack), logs, then tail-calls the original via
+/// the trampoline. A 4-arg/usize-return signature safely covers these season
+/// natives (<=4 integer args, void/int returns).
+macro_rules! season_call_trace {
+    ($wrap:ident, $tramp:ident, $name:literal) => {
+        static $tramp: AtomicUsize = AtomicUsize::new(0);
+        unsafe extern "system" fn $wrap(rcx: usize, rdx: usize, r8: usize, r9: usize) -> usize {
+            log_call($name, rcx, rdx, r8);
+            let t = $tramp.load(Ordering::Acquire);
+            if t == 0 {
+                return 0;
+            }
+            let original: unsafe extern "system" fn(usize, usize, usize, usize) -> usize =
+                core::mem::transmute(t);
+            original(rcx, rdx, r8, r9)
+        }
+    };
+}
+
+season_call_trace!(
+    load_current_native_wrapper,
+    LOAD_CURRENT_NATIVE_TRAMP,
+    "LoadCurrentOfflineSeason_native"
+);
+season_call_trace!(
+    start_season_native_wrapper,
+    START_SEASON_NATIVE_TRAMP,
+    "StartSeason_native"
+);
+season_call_trace!(
+    get_info_native_wrapper,
+    GET_INFO_NATIVE_TRAMP,
+    "GetOfflineSeasonInfo_native"
+);
+// Real LoadOfflineSeasons native (FUN_18004ee10) — what _LoadCurrentSeason
+// actually calls; hands the callback name to the manager's async slot 0x80.
+season_call_trace!(
+    load_offline_real_wrapper,
+    LOAD_OFFLINE_REAL_TRAMP,
+    "LoadOfflineSeasons_native(0x4ee10)"
+);
+// Async LoadOfflineSeasons impl (mgr slot 0x80, FUN_180057560): reads the season
+// count and invokes the LoadSeasons_Complete AS callback.
+season_call_trace!(
+    load_offline_async_wrapper,
+    LOAD_OFFLINE_ASYNC_TRAMP,
+    "LoadOfflineSeasons_asyncimpl(0x57560)"
+);
+
+// LoadCurrentOfflineSeason IMPL (manager slot 0x20): registers the load callbacks
+// and starts the async op. param_1=manager, param_2=state byte, param_3=seasonId
+// string ptr. Logs those, then calls the original.
+static LOAD_CURRENT_IMPL_TRAMP: AtomicUsize = AtomicUsize::new(0);
+unsafe extern "system" fn load_current_impl_wrapper(
+    param_1: usize,
+    param_2: usize,
+    param_3: usize,
+    param_4: usize,
+) -> usize {
+    let n = REPORTS.fetch_add(1, Ordering::Relaxed);
+    if n < 64 {
+        // param_3 -> C string season id (best-effort read of first bytes).
+        let sid = if param_3 != 0 && readable_range(param_3, 8) {
+            let p = *(param_3 as *const usize);
+            if p != 0 && readable_range(p, 8) {
+                *(p as *const u64)
+            } else {
+                0
+            }
+        } else {
+            0
+        };
+        write_log(&format!(
+            "SEASON_CALL: LoadCurrentOfflineSeason_impl mgr={param_1:#x} stateByte={param_2:#x} sidPtr={param_3:#x} sidHead={sid:#x}\n"
+        ));
+    }
+    let t = LOAD_CURRENT_IMPL_TRAMP.load(Ordering::Acquire);
+    if t == 0 {
+        return 0;
+    }
+    let original: unsafe extern "system" fn(usize, usize, usize, usize) -> usize =
+        core::mem::transmute(t);
+    original(param_1, param_2, param_3, param_4)
+}
+
+// Completion callback FUN_1800578e0 (0x578e0). Kept from the first pass to confirm
+// whether it ever fires; logs the result fields it branches on.
+static COMPLETION_TRAMP: AtomicUsize = AtomicUsize::new(0);
+unsafe extern "system" fn completion_wrapper(
+    ctx: usize,
+    result: usize,
+    r8: usize,
+    r9: usize,
+) -> usize {
+    let n = REPORTS.fetch_add(1, Ordering::Relaxed);
+    if n < 64 {
+        let status = rd_i32(result + 0x1c);
+        let state = rd_u8(result + 0x68);
+        let season_id = rd_i32(result + 0x5c);
+        write_log(&format!(
+            "SEASON_LOAD_COMPLETE: ctx={ctx:#x} result={result:#x} status(+0x1c)={} state(+0x68)={} seasonId(+0x5c)={}\n",
+            status.map(|x| x.to_string()).unwrap_or_else(|| "??".into()),
+            state.map(|x| x.to_string()).unwrap_or_else(|| "??".into()),
+            season_id.map(|x| x.to_string()).unwrap_or_else(|| "??".into()),
+        ));
+    }
+    let t = COMPLETION_TRAMP.load(Ordering::Acquire);
+    if t == 0 {
+        return 0;
+    }
+    let original: unsafe extern "system" fn(usize, usize, usize, usize) -> usize =
+        core::mem::transmute(t);
+    original(ctx, result, r8, r9)
+}
+
+// GetUsersOfflineDivision native FUN_18004eb50 (registration FUN_18004e3f0 proved
+// this binding — it is NOT LoadOfflineSeasons). Called from _InitializeScreen for
+// the division display, sync. Its prologue holds a rip-relative `MOV RCX,[rip+disp]`,
+// so it needs the relocating installer below.
+season_call_trace!(
+    get_users_division_wrapper,
+    GET_USERS_DIVISION_TRAMP,
+    "GetUsersOfflineDivision_native(0x4eb50)"
+);
+
+/// Find a free page within ~±1.5 GiB of `base`, so a rip-relative disp32 into
+/// CardsDLL data still fits after we relocate a copied prologue into it.
+unsafe fn alloc_near(base: usize, size: usize) -> Option<usize> {
+    const GRAN: usize = 0x10000;
+    let mut step = GRAN;
+    while step < 0x6000_0000 {
+        for signed in [step as isize, -(step as isize)] {
+            let cand = base.wrapping_add(signed as usize) & !(GRAN - 1);
+            if cand == 0 {
+                continue;
+            }
+            let p = VirtualAlloc(cand as _, size, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);
+            if !p.is_null() {
+                return Some(p as usize);
+            }
+        }
+        step += GRAN;
+    }
+    None
+}
+
+/// Passive detour for a target whose copied prologue contains a single
+/// rip-relative operand (disp32 at `disp_off`, instruction ending at `insn_end`,
+/// both within the copied bytes). The trampoline is allocated near `base` and the
+/// disp32 is relocated so it resolves to the same absolute address. Read-only.
+#[allow(clippy::too_many_arguments)]
+unsafe fn install_detour_reloc(
+    base: usize,
+    rva: usize,
+    name: &str,
+    copy_len: usize,
+    signature: &[u8],
+    disp_off: usize,
+    insn_end: usize,
+    wrapper: usize,
+    trampoline_slot: &AtomicUsize,
+) -> bool {
+    let Some(target) = target_va(base, rva) else {
+        write_log(&format!("SEASON_TRACE: {name}: VA overflow\n"));
+        return false;
+    };
+    if !readable_range(target, copy_len)
+        || core::slice::from_raw_parts(target as *const u8, copy_len) != signature
+    {
+        write_log(&format!(
+            "SEASON_TRACE: {name}: prologue signature mismatch at {target:#x}; skip\n"
+        ));
+        return false;
+    }
+    let jump = absolute_jump(wrapper);
+    let tramp_len = copy_len + jump.len();
+    let Some(tramp) = alloc_near(base, tramp_len) else {
+        write_log(&format!(
+            "SEASON_TRACE: {name}: near trampoline alloc failed\n"
+        ));
+        return false;
+    };
+    core::ptr::copy_nonoverlapping(target as *const u8, tramp as *mut u8, copy_len);
+    // Relocate the rip-relative disp32 to keep the same absolute target.
+    let orig_disp = core::ptr::read_unaligned((target + disp_off) as *const i32) as i64;
+    let abs_target = target as i64 + insn_end as i64 + orig_disp;
+    let new_disp = abs_target - (tramp as i64 + insn_end as i64);
+    if new_disp < i32::MIN as i64 || new_disp > i32::MAX as i64 {
+        write_log(&format!(
+            "SEASON_TRACE: {name}: reloc out of range ({new_disp:#x})\n"
+        ));
+        return false;
+    }
+    core::ptr::write_unaligned((tramp + disp_off) as *mut i32, new_disp as i32);
+    let back = absolute_jump(target + copy_len);
+    core::ptr::copy_nonoverlapping(back.as_ptr(), (tramp + copy_len) as *mut u8, back.len());
+    let mut old = 0u32;
+    if VirtualProtect(tramp as _, tramp_len, PAGE_EXECUTE_READ, &mut old) == 0 {
+        write_log(&format!(
+            "SEASON_TRACE: {name}: trampoline protect failed\n"
+        ));
+        return false;
+    }
+    FlushInstructionCache(GetCurrentProcess(), tramp as _, tramp_len);
+    trampoline_slot.store(tramp, Ordering::Release);
+    let mut patch = [0x90u8; 24];
+    patch[..jump.len()].copy_from_slice(&jump);
+    let mut prot = 0u32;
+    if VirtualProtect(target as _, copy_len, PAGE_EXECUTE_READWRITE, &mut prot) == 0 {
+        write_log(&format!("SEASON_TRACE: {name}: VirtualProtect failed\n"));
+        return false;
+    }
+    core::ptr::copy_nonoverlapping(patch.as_ptr(), target as *mut u8, copy_len);
+    let flushed = FlushInstructionCache(GetCurrentProcess(), target as _, copy_len) != 0;
+    let mut ignored = 0u32;
+    VirtualProtect(target as _, copy_len, prot, &mut ignored);
+    if flushed {
+        write_log(&format!(
+            "SEASON_TRACE: {name}: installed(reloc) at {target:#x} (tramp {tramp:#x})\n"
+        ));
+        true
+    } else {
+        write_log(&format!("SEASON_TRACE: {name}: flush failed\n"));
+        false
+    }
+}
+
+// FutCompetitionServiceImpl::LoadOfflineSeasons FINAL completion (FUN_1800ffe90):
+// delivers the result to the AS callback LoadSeasons_Complete via
+// FUN_18019fb30->slot0x20(vm,"_global",cbref, "SUCCESS" | errString). param_1 = the
+// completion ctx (cbref at +0x18), param_2 = result obj (byte0=ok flag; +8 = error
+// string ptr when byte0==0). Logs the EXACT status string delivered. Passive.
+static FINAL_COMPLETION_TRAMP: AtomicUsize = AtomicUsize::new(0);
+unsafe extern "system" fn final_completion_wrapper(
+    ctx: usize,
+    result: usize,
+    r8: usize,
+    r9: usize,
+) -> usize {
+    // Read the delivered status: byte0==0 => failure with an error string at +8.
+    let flag = rd_u8(result);
+    let errstr = if flag == Some(0) {
+        let p = if readable_range(result + 8, 8) {
+            core::ptr::read_volatile((result + 8) as *const usize)
+        } else {
+            0
+        };
+        rd_cstr(p, 96)
+    } else {
+        String::new()
+    };
+    let n = REPORTS.fetch_add(1, Ordering::Relaxed);
+    if n < 64 {
+        let cbref = if readable_range(ctx + 0x18, 8) {
+            core::ptr::read_volatile((ctx + 0x18) as *const usize)
+        } else {
+            0
+        };
+        let kind = match flag {
+            Some(0) => "ERROR",
+            Some(_) => "SUCCESS",
+            None => "??",
+        };
+        let shown = if flag == Some(0) {
+            errstr.as_str()
+        } else {
+            "SUCCESS"
+        };
+        write_log(&format!(
+            "SEASONS_LOAD_CALLBACK: final kind={kind} result={shown:?} flag={flag:?} ctx={ctx:#x} cbref={cbref:#x}\n"
+        ));
+    }
+    let t = FINAL_COMPLETION_TRAMP.load(Ordering::Acquire);
+    if t == 0 {
+        return 0;
+    }
+    let original: unsafe extern "system" fn(usize, usize, usize, usize) -> usize =
+        core::mem::transmute(t);
+    original(ctx, result, r8, r9)
+}
+
+// LoadOfflineSeasons STAGE-1 async completion (FUN_180106240): fails with
+// "CACHE_PACKNAMES_FAILED" when result==0 or *(i32)(result+0x1c)!=0; else chains
+// the next async stage. Logs whether the first async stage succeeded. Passive.
+static STAGE1_COMPLETION_TRAMP: AtomicUsize = AtomicUsize::new(0);
+unsafe extern "system" fn stage1_completion_wrapper(
+    param1: usize,
+    result: usize,
+    r8: usize,
+    r9: usize,
+) -> usize {
+    let n = REPORTS.fetch_add(1, Ordering::Relaxed);
+    if n < 64 {
+        if result == 0 {
+            write_log("SEASONS_STAGE1: result=NULL -> CACHE_PACKNAMES_FAILED\n");
+        } else {
+            let status = rd_i32(result + 0x1c);
+            let verdict = if status == Some(0) {
+                "ok(chain next)"
+            } else {
+                "CACHE_PACKNAMES_FAILED"
+            };
+            write_log(&format!(
+                "SEASONS_STAGE1: result={result:#x} status(+0x1c)={} -> {verdict}\n",
+                status.map(|x| x.to_string()).unwrap_or_else(|| "??".into()),
+            ));
+        }
+    }
+    let t = STAGE1_COMPLETION_TRAMP.load(Ordering::Acquire);
+    if t == 0 {
+        return 0;
+    }
+    let original: unsafe extern "system" fn(usize, usize, usize, usize) -> usize =
+        core::mem::transmute(t);
+    original(param1, result, r8, r9)
+}
+
+// WEBFILE_DL download start FUN_18017ff90(url, ctx): param_1 (rcx) is the C-string
+// URL of the pack-names/cards-tournament-list web file. Passive capture. Its
+// prologue has a rip-relative `MOV R8,[DAT_1802e6580]`, so it uses the relocating
+// installer (disp32 at copied offset 7, instruction end 11).
+static URL_CAPTURE_TRAMP: AtomicUsize = AtomicUsize::new(0);
+unsafe extern "system" fn url_capture_wrapper(
+    rcx: usize,
+    rdx: usize,
+    r8: usize,
+    r9: usize,
+) -> usize {
+    let n = REPORTS.fetch_add(1, Ordering::Relaxed);
+    if n < 64 {
+        write_log(&format!(
+            "SEASONS_WEBFILE_URL: url={:?}\n",
+            rd_cstr(rcx, 256)
+        ));
+    }
+    let t = URL_CAPTURE_TRAMP.load(Ordering::Acquire);
+    if t == 0 {
+        return 0;
+    }
+    let original: unsafe extern "system" fn(usize, usize, usize, usize) -> usize =
+        core::mem::transmute(t);
+    original(rcx, rdx, r8, r9)
+}
+
+unsafe fn worker() {
+    let mut base = 0usize;
+    for _ in 0..600u32 {
+        base = GetModuleHandleA(c"CardsDLL_Win64_retail.dll".as_ptr().cast()) as usize;
+        if base != 0 {
+            break;
+        }
+        std::thread::sleep(std::time::Duration::from_millis(500));
+    }
+    if base == 0 || !validate_cards_build(base) {
+        write_log("SEASON_TRACE: CardsDLL unavailable/invalid; season trace inactive\n");
+        return;
+    }
+    // (rva, name, copy_len, signature, wrapper, trampoline slot)
+    install_detour(
+        base,
+        0x4eb70,
+        "LoadCurrentOfflineSeason_native",
+        15,
+        &[
+            0x40, 0x57, 0x48, 0x83, 0xec, 0x60, 0x48, 0xc7, 0x44, 0x24, 0x20, 0xfe, 0xff, 0xff,
+            0xff,
+        ],
+        load_current_native_wrapper as *const () as usize,
+        &LOAD_CURRENT_NATIVE_TRAMP,
+    );
+    install_detour(
+        base,
+        0x4f340,
+        "StartSeason_native",
+        15,
+        &[
+            0x40, 0x57, 0x48, 0x83, 0xec, 0x60, 0x48, 0xc7, 0x44, 0x24, 0x20, 0xfe, 0xff, 0xff,
+            0xff,
+        ],
+        start_season_native_wrapper as *const () as usize,
+        &START_SEASON_NATIVE_TRAMP,
+    );
+    install_detour(
+        base,
+        0x4e850,
+        "GetOfflineSeasonInfo_native",
+        15,
+        &[
+            0x48, 0x89, 0x5c, 0x24, 0x08, 0x48, 0x89, 0x6c, 0x24, 0x10, 0x48, 0x89, 0x74, 0x24,
+            0x18,
+        ],
+        get_info_native_wrapper as *const () as usize,
+        &GET_INFO_NATIVE_TRAMP,
+    );
+    install_detour(
+        base,
+        0x57230,
+        "LoadCurrentOfflineSeason_impl",
+        19,
+        &[
+            0x48, 0x8b, 0xc4, 0x57, 0x48, 0x81, 0xec, 0x80, 0x00, 0x00, 0x00, 0x48, 0xc7, 0x40,
+            0x98, 0xfe, 0xff, 0xff, 0xff,
+        ],
+        load_current_impl_wrapper as *const () as usize,
+        &LOAD_CURRENT_IMPL_TRAMP,
+    );
+    install_detour(
+        base,
+        0x578e0,
+        "LoadCurrentOfflineSeason_completion",
+        16,
+        &[
+            0x48, 0x8b, 0xc4, 0x57, 0x48, 0x83, 0xec, 0x70, 0x48, 0xc7, 0x40, 0xd0, 0xfe, 0xff,
+            0xff, 0xff,
+        ],
+        completion_wrapper as *const () as usize,
+        &COMPLETION_TRAMP,
+    );
+    install_detour_reloc(
+        base,
+        0x4eb50,
+        "GetUsersOfflineDivision_native",
+        14,
+        &[
+            0x48, 0x83, 0xec, 0x28, 0x48, 0x8b, 0x0d, 0x75, 0x18, 0x29, 0x00, 0x48, 0x8b, 0x01,
+        ],
+        7,
+        11,
+        get_users_division_wrapper as *const () as usize,
+        &GET_USERS_DIVISION_TRAMP,
+    );
+    install_detour(
+        base,
+        0x4ee10,
+        "LoadOfflineSeasons_native",
+        15,
+        &[
+            0x40, 0x57, 0x48, 0x83, 0xec, 0x60, 0x48, 0xc7, 0x44, 0x24, 0x20, 0xfe, 0xff, 0xff,
+            0xff,
+        ],
+        load_offline_real_wrapper as *const () as usize,
+        &LOAD_OFFLINE_REAL_TRAMP,
+    );
+    install_detour(
+        base,
+        0x57560,
+        "LoadOfflineSeasons_asyncimpl",
+        17,
+        &[
+            0x40, 0x55, 0x56, 0x57, 0x48, 0x83, 0xec, 0x30, 0x48, 0xc7, 0x44, 0x24, 0x20, 0xfe,
+            0xff, 0xff, 0xff,
+        ],
+        load_offline_async_wrapper as *const () as usize,
+        &LOAD_OFFLINE_ASYNC_TRAMP,
+    );
+    install_detour(
+        base,
+        0xffe90,
+        "LoadOfflineSeasons_final_completion",
+        16,
+        &[
+            0x48, 0x89, 0x5c, 0x24, 0x08, 0x57, 0x48, 0x83, 0xec, 0x30, 0x80, 0x3a, 0x00, 0x48,
+            0x8b, 0xda,
+        ],
+        final_completion_wrapper as *const () as usize,
+        &FINAL_COMPLETION_TRAMP,
+    );
+    install_detour(
+        base,
+        0x106240,
+        "LoadOfflineSeasons_stage1_completion",
+        15,
+        &[
+            0x48, 0x8b, 0xc4, 0x55, 0x48, 0x8d, 0x68, 0xa1, 0x48, 0x81, 0xec, 0xc0, 0x00, 0x00,
+            0x00,
+        ],
+        stage1_completion_wrapper as *const () as usize,
+        &STAGE1_COMPLETION_TRAMP,
+    );
+    install_detour_reloc(
+        base,
+        0x17ff90,
+        "start_webfile_dl_url",
+        14,
+        &[
+            0x48, 0x83, 0xec, 0x38, 0x4c, 0x8b, 0x05, 0xe5, 0x65, 0x16, 0x00, 0x4c, 0x8b, 0xd1,
+        ],
+        7,
+        11,
+        url_capture_wrapper as *const () as usize,
+        &URL_CAPTURE_TRAMP,
+    );
+    write_log("SEASON_TRACE: all season-native traces armed\n");
+}
+
+/// Arm the passive season-flow diagnostics on a deferred thread (CardsDLL is not
+/// yet loaded at DllMain time). Read-only: never changes game behavior.
+pub(crate) fn install() {
+    write_log("SEASON_TRACE: requested; deferred signature validation starting\n");
+    std::thread::spawn(|| unsafe { worker() });
+}

openfut-hook/src/ssl_patch.rs

@@ -1,81 +0,0 @@
-// Runtime in-memory patch for ProtoSSL's certificate verification function inside
-// EAWebKit.dll. Rather than patching the DLL on disk (offset-dependent, fragile),
-// we scan the loaded module for the function's unique byte prologue and overwrite the
-// first six bytes with `mov eax, 1; ret` — making every cert-chain validation call
-// immediately return success.
-//
-// Why this is safe: the patched function (`ProtoSSL_VerifyCert` at VA 0x180a85570 in
-// the shipped binary) is only used by ProtoSSL's TLS state machine to validate the
-// server's certificate chain.  Always returning 1 is equivalent to trusting all certs,
-// which is the behaviour we want for the local self-signed bridge certificate.
-
-use windows_sys::Win32::System::{
-    LibraryLoader::GetModuleHandleA,
-    Memory::{VirtualProtect, PAGE_EXECUTE_READWRITE},
-};
-
-// Unique 22-byte prologue of ProtoSSL's cert-verify function.
-// Confirmed present in the EA-shipped EAWebKit.dll (June 2023 build).
-const PROLOGUE: &[u8] = &[
-    0x44, 0x89, 0x44, 0x24, 0x18, // mov  [rsp+0x18], r8d
-    0x48, 0x89, 0x54, 0x24, 0x10, // mov  [rsp+0x10], rdx
-    0x56, // push rsi
-    0x57, // push rdi
-    0x41, 0x55, // push r13
-    0x41, 0x56, // push r14
-    0x41, 0x57, // push r15
-    0x48, 0x83, 0xec, 0x30, // sub  rsp, 0x30
-];
-
-// Return 0 (PROTOSSL_ERROR_NONE = success).  ProtoSSL convention: 0 = ok, negative = error.
-// The function sets r15d = 0xFFFFFFFF (-1) for its own error returns, confirming 0 = success.
-const PATCH: &[u8] = &[
-    0x31, 0xc0, // xor eax, eax  (eax = 0 = PROTOSSL_ERROR_NONE)
-    0xc3, // ret
-    0x90, 0x90, 0x90, // nop padding
-];
-
-fn patch_module(module: isize, scan_bytes: usize) -> bool {
-    if module == 0 {
-        return false;
-    }
-    let base = module as usize;
-    let image: &[u8] = unsafe { core::slice::from_raw_parts(base as *const u8, scan_bytes) };
-    let offset = match image.windows(PROLOGUE.len()).position(|w| w == PROLOGUE) {
-        Some(o) => o,
-        None => return false,
-    };
-    let target = (base + offset) as *mut u8;
-    let mut old_prot: u32 = 0;
-    unsafe {
-        VirtualProtect(
-            target as *const core::ffi::c_void,
-            PATCH.len(),
-            PAGE_EXECUTE_READWRITE,
-            &mut old_prot,
-        );
-        core::ptr::copy_nonoverlapping(PATCH.as_ptr(), target, PATCH.len());
-        VirtualProtect(
-            target as *const core::ffi::c_void,
-            PATCH.len(),
-            old_prot,
-            &mut old_prot,
-        );
-    }
-    true
-}
-
-/// Patch ProtoSSL cert-verify in EAWebKit.dll (call when EAWebKit is loaded).
-pub unsafe fn patch_eawebkit_cert_verify() -> bool {
-    let module = GetModuleHandleA(b"EAWebKit.dll\0".as_ptr()) as isize;
-    // EAWebKit.dll is ~22 MB
-    patch_module(module, 24 * 1024 * 1024)
-}
-
-/// Patch ProtoSSL cert-verify compiled into FIFA23.exe itself (DirtySDK's copy).
-/// The main exe is ~100 MB; confirmed present at file offset 0xf0c850.
-pub unsafe fn patch_main_exe_cert_verify() -> bool {
-    let module = GetModuleHandleA(core::ptr::null()) as isize;
-    // Scan first 110 MB — the function is near offset 0xf0c850 (~15 MB in)
-    patch_module(module, 110 * 1024 * 1024)
-}

openfut-hook/src/store_entry.rs

@@ -0,0 +1,485 @@
+//! FIFA 17 store tab-bar repair — pre-warm the purchase groups before screen-show.
+//!
+//! # Confirmed root cause (live, 2026-08-19)
+//!
+//! `FUN_18007e5e0(ctx, panel)` is the native tab binder the screen framework
+//! invokes at store screen-show. It is an unrolled six-slot loop; each slot gates
+//! on one hard-coded category token and either publishes that group's id as
+//! `PANEL_ID` for the slot, or hides the slot:
+//!
+//! ```text
+//! if (FUN_180014df0(_, idx))                                  // token present?
+//!     (*(panel_vtbl+0x48))(panel, slot, "PANEL_ID", FUN_180014580(_, idx));
+//! else
+//!     (*(panel_vtbl+0xa0))(panel, slot);                      // hide slot
+//! ```
+//!
+//! slot -> token, in bind order: `mypacks, bronze, silver, gold, special, points`.
+//! The gate `FUN_180014df0` resolves the token through `FUN_180014380`, which scans
+//! the loaded purchase groups (stride `0x108`) comparing the token at `group+0x70`.
+//! So a tab appears iff a purchase group carrying that token is loaded AT BIND TIME.
+//!
+//! The bind detour below measured the ground truth on the retail client:
+//!
+//! ```text
+//! STORE_TABS: bind generation=2 mask=0x00 ...        <- empty at screen-show
+//! STORE_TABS: rebound generation=2 mask=0x0e (...)   <- groups present ~instantly after
+//! ```
+//!
+//! `mask=0x00` at screen-show confirms the container is empty when the framework
+//! binds, so all six slots hide and no tab bar is built. The store's own
+//! `GET store/purchasegroup/all` only returns *after* screen-show, so re-entry works
+//! (groups cached) but first entry does not. (`0x0e` = bronze|silver|gold; bit 0
+//! `mypacks` is clear because an empty My Packs serves no `mypacks` group.)
+//!
+//! # What did NOT work, and why this module changed
+//!
+//! A previous version re-invoked the binder at the next render, once the groups had
+//! arrived (`rebound ... mask=0x0e` above). The movie built NO tab bar from that
+//! late bind: the Scaleform movie only honours the framework's OWN bind at
+//! screen-show, not a later re-publish/commit. That approach is abandoned.
+//!
+//! # This module: make the container non-empty BEFORE the first bind
+//!
+//! The only publish the movie honours is the framework's bind at screen-show, and
+//! re-entry proves that bind builds the bar correctly when the container is already
+//! full. So the fix is to load the purchase groups BEFORE the store screen is shown.
+//!
+//! `FUN_180017870(storefront)` issues the store's own `GET store/purchasegroup/all`.
+//! Firing it from the FUT hub event pump (a real game thread, well before the store
+//! screen exists) gives the response time to arrive and populate the container, so
+//! the first screen-show bind sees a full list and binds the tabs natively — exactly
+//! the re-entry path, on first entry.
+//!
+//! The bind detour is retained purely as the SENSOR: the first-entry bind mask is
+//! the safe, definitive measurement of whether the pre-warm populated the container
+//! in time. `mask != 0` at first bind ⇒ pre-warm worked and the tabs bind natively;
+//! `mask == 0` (with `storefront_seen=1` in the pre-warm log) ⇒ a hub-time request
+//! cannot land in time and the remaining route is the extracted `StoreFront.apt`.
+//!
+//! # Fail-closed
+//!
+//! * Pre-warm fires at most once per process, claimed atomically, and only once the
+//!   storefront singleton is non-null; the storefront pointer is read through a
+//!   guarded load and the request function's signature is validated before the call.
+//! * The bind detour only reads (captures pointers, probes the game's own gate with
+//!   a provably-dead `this`) and never mutates store state.
+//! * Image plus every function signature are verified before any write and again
+//!   under thread suspension; one wrong byte aborts with no write and no call.
+//!
+//! # Promotion
+//!
+//! PROMOTED: armed by the build, never by an environment variable (see
+//! [`REPAIR_PROMOTED`]). Rollback is a `version.dll` file swap.
+
+use core::ffi::c_void;
+use core::sync::atomic::{AtomicBool, AtomicU32, AtomicU64, AtomicUsize, Ordering};
+use windows_sys::Win32::System::Diagnostics::Debug::FlushInstructionCache;
+use windows_sys::Win32::System::LibraryLoader::{
+    GetModuleHandleA, GetModuleHandleExA, GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS,
+    GET_MODULE_HANDLE_EX_FLAG_PIN,
+};
+use windows_sys::Win32::System::Memory::{
+    VirtualFree, VirtualProtect, MEM_RELEASE, PAGE_EXECUTE_READWRITE,
+};
+use windows_sys::Win32::System::Threading::{GetCurrentProcess, GetCurrentThreadId};
+
+/// Native tab binder `FUN_18007e5e0(ctx, panel)`, invoked by the screen framework
+/// at screen-show. Detoured as the read-only sensor: captures the gate mask it saw.
+const BIND_RVA: usize = 0x7e5e0;
+/// Category gate `FUN_180014df0(dead_this, idx) -> bool`: maps `idx` to one of the
+/// six hard-coded tokens and reports whether a loaded purchase group carries it.
+const HAS_CATEGORY_RVA: usize = 0x14df0;
+/// `FUN_180017870(storefront)` issues `GET store/purchasegroup/all` — the exact call
+/// the store screen makes at entry (from `0x18007f25e`). Fired early to pre-warm.
+const REQUEST_GROUPS_RVA: usize = 0x17870;
+/// `*(base + STOREFRONT_GLOBAL_RVA)` is the storefront the store code passes to its
+/// request/lookup helpers (loaded at `0x18007f25e`, right before the pack-list GET).
+const STOREFRONT_GLOBAL_RVA: usize = 0x2de0d0;
+
+/// Gate indices in slot order: `mypacks, bronze, silver, gold, special, points`.
+/// Taken from the binder's unrolled call sequence, not from the index order of
+/// `FUN_180014580`'s jump table (which is deliberately different).
+const GATE_INDICES: [u32; 6] = [0, 2, 3, 4, 5, 1];
+
+/// Whole-instruction prologue length relocated into the trampoline; also the number
+/// of bytes overwritten by the entry detour. 15 bytes, a clean boundary covering the
+/// 14-byte absolute jump.
+const COPY_LEN: usize = 15;
+const ABS_JUMP_LEN: usize = 14;
+
+/// First 15 bytes of `FUN_18007e5e0`: `mov [rsp+8],rbx; mov [rsp+0x10],rbp;
+/// mov [rsp+0x18],rsi` = 5 + 5 + 5.
+const BIND_SIGNATURE: [u8; COPY_LEN] = [
+    0x48, 0x89, 0x5c, 0x24, 0x08, 0x48, 0x89, 0x6c, 0x24, 0x10, 0x48, 0x89, 0x74, 0x24, 0x18,
+];
+/// First 15 bytes of `FUN_180014df0`. Validated before we ever call it, so the gate
+/// probe only runs on the exact build it was reversed against.
+const HAS_CATEGORY_SIGNATURE: [u8; 15] = [
+    0x40, 0x53, 0x48, 0x83, 0xec, 0x20, 0x33, 0xdb, 0x44, 0x8b, 0xc3, 0x85, 0xd2, 0x74, 0x35,
+];
+/// First 18 bytes of `FUN_180017870`. Validated before we ever call it, so the
+/// pre-warm only fires the genuine request on the exact build it was reversed against.
+const REQUEST_GROUPS_SIGNATURE: [u8; 18] = [
+    0x40, 0x57, 0x48, 0x81, 0xec, 0x90, 0x00, 0x00, 0x00, 0x48, 0xc7, 0x44, 0x24, 0x20, 0xfe, 0xff,
+    0xff, 0xff,
+];
+
+type BindFn = unsafe extern "system" fn(*mut c_void, *mut c_void) -> *mut c_void;
+type HasCategoryFn = unsafe extern "system" fn(*mut c_void, u32) -> u8;
+type RequestGroupsFn = unsafe extern "system" fn(*mut c_void) -> usize;
+
+/// The tab-bar repair is PROMOTED: armed by the build, never by an environment
+/// variable, so every launch path (Steam, the launcher, a bare `umu-run`) behaves
+/// identically. Promotion does not weaken any check — the signature gate, the image
+/// validation and the thread quiesce all remain in the runtime evidence path.
+pub(crate) const REPAIR_PROMOTED: bool = true;
+
+/// Compile-time contract: the repair stays build-armed. Regressing it to an env gate
+/// would silently restore the missing first-entry tab bar on a normal launch, so it
+/// must be a deliberate, visible change here rather than a missing variable.
+const _: () = assert!(REPAIR_PROMOTED);
+
+static REPAIR_ENABLED: AtomicBool = AtomicBool::new(false);
+static BIND_TRAMPOLINE: AtomicUsize = AtomicUsize::new(0);
+static STORE_BASE: AtomicUsize = AtomicUsize::new(0);
+static BIND_ENTRIES: AtomicU64 = AtomicU64::new(0);
+/// Gate mask the framework's most recent bind observed (bit N = slot N would bind).
+static LAST_BIND_MASK: AtomicU32 = AtomicU32::new(0);
+static LAST_THREAD: AtomicUsize = AtomicUsize::new(0);
+/// Set once the pre-warm request has been fired (or is provably unnecessary).
+static PREWARM_DONE: AtomicBool = AtomicBool::new(false);
+static PREWARM_ATTEMPTS: AtomicU64 = AtomicU64::new(0);
+/// Highest storefront pointer observed at hub time (0 = never non-null yet). Logged
+/// so a failed pre-warm can be attributed to "storefront not up at hub" vs "fired
+/// but the response did not land before screen-show".
+static PREWARM_STOREFRONT_SEEN: AtomicUsize = AtomicUsize::new(0);
+
+/// Pure pre-warm decision, isolated for host tests.
+///
+/// Fire exactly once, and only once the storefront singleton is non-null; before
+/// that, keep waiting (a null storefront early at the hub is expected).
+fn should_prewarm(already_done: bool, storefront: usize) -> bool {
+    !already_done && storefront != 0
+}
+
+/// Probe all six category tokens with the game's own gate and return a slot mask.
+///
+/// `FUN_180014df0` forwards its `this` to `FUN_180014380`, which discards it and
+/// fetches the group container from a singleton, so a null `this` is exactly what
+/// the native code effectively passes. Called only from the bind detour, where the
+/// store subsystem is provably live.
+unsafe fn gate_mask() -> u8 {
+    let base = STORE_BASE.load(Ordering::Acquire);
+    if base == 0 {
+        return 0;
+    }
+    let Some(gate) = base.checked_add(HAS_CATEGORY_RVA) else {
+        return 0;
+    };
+    let gate_fn: HasCategoryFn = core::mem::transmute(gate);
+    let mut mask = 0u8;
+    for (slot, index) in GATE_INDICES.iter().enumerate() {
+        if gate_fn(core::ptr::null_mut(), *index) != 0 {
+            mask |= 1 << slot;
+        }
+    }
+    mask
+}
+
+/// Ask the game to load the purchase groups now, on the caller's (game) thread.
+///
+/// Called from the FUT event dispatcher so it runs on a real game thread well before
+/// the store screen is ever shown — the same thread the store screen itself would use
+/// for this call at entry. Fail-closed: base/signature/storefront all validated, at
+/// most one request per process.
+pub(crate) unsafe fn maybe_prewarm_groups() {
+    if PREWARM_DONE.load(Ordering::Acquire) || !REPAIR_ENABLED.load(Ordering::Acquire) {
+        return;
+    }
+    let base = STORE_BASE.load(Ordering::Acquire);
+    if base == 0 || !crate::sbc_trace::valid_cards_image(base) {
+        return;
+    }
+    let Some(storefront) = base
+        .checked_add(STOREFRONT_GLOBAL_RVA)
+        .and_then(|slot| crate::sbc_trace::guarded_usize(slot))
+    else {
+        return;
+    };
+    if storefront != 0 {
+        PREWARM_STOREFRONT_SEEN.store(storefront, Ordering::Release);
+    }
+    if !should_prewarm(false, storefront) {
+        // Storefront not up yet at the hub: keep waiting, do not consume the attempt.
+        return;
+    }
+    let Some(request) = base.checked_add(REQUEST_GROUPS_RVA) else {
+        return;
+    };
+    if !crate::sbc_trace::executable_range_in_image(base, request, REQUEST_GROUPS_SIGNATURE.len())
+        || core::slice::from_raw_parts(request as *const u8, REQUEST_GROUPS_SIGNATURE.len())
+            != REQUEST_GROUPS_SIGNATURE
+    {
+        return;
+    }
+    // Claim the single attempt before issuing it, so a re-entrant event can never
+    // fire a second request.
+    PREWARM_DONE.store(true, Ordering::Release);
+    PREWARM_ATTEMPTS.fetch_add(1, Ordering::Relaxed);
+    let request_fn: RequestGroupsFn = core::mem::transmute(request);
+    request_fn(storefront as *mut c_void);
+    crate::write_log(&format!(
+        "STORE_TABS: pre-warmed purchase groups at hub (storefront={storefront:#x})\n"
+    ));
+}
+
+unsafe fn restore_entry<const N: usize>(target: usize, original: &[u8; N]) -> bool {
+    let mut old = 0u32;
+    if VirtualProtect(target as _, N, PAGE_EXECUTE_READWRITE, &mut old) == 0 {
+        return false;
+    }
+    core::ptr::copy_nonoverlapping(original.as_ptr(), target as *mut u8, N);
+    let flushed = FlushInstructionCache(GetCurrentProcess(), target as _, N) != 0;
+    let mut ignored = 0u32;
+    flushed && VirtualProtect(target as _, N, old, &mut ignored) != 0
+}
+
+unsafe fn write_entry<const N: usize>(
+    target: usize,
+    destination: usize,
+    original: &[u8; N],
+) -> Result<(), bool> {
+    let mut patch = [0x90u8; N];
+    patch[..ABS_JUMP_LEN].copy_from_slice(&crate::sbc_trace::absolute_jump(destination));
+    let mut old = 0u32;
+    if VirtualProtect(target as _, N, PAGE_EXECUTE_READWRITE, &mut old) == 0 {
+        return Err(true);
+    }
+    core::ptr::copy_nonoverlapping(patch.as_ptr(), target as *mut u8, N);
+    let flushed = FlushInstructionCache(GetCurrentProcess(), target as _, N) != 0;
+    let mut ignored = 0u32;
+    if flushed && VirtualProtect(target as _, N, old, &mut ignored) != 0 {
+        Ok(())
+    } else {
+        Err(restore_entry(target, original))
+    }
+}
+
+/// Detour target for the native tab binder. Read-only sensor: records the gate mask
+/// the framework's bind is about to act on, then runs the original unchanged. This is
+/// the definitive measurement of whether the pre-warm populated the container in time.
+unsafe extern "system" fn bind_wrapper(ctx: *mut c_void, panel: *mut c_void) -> *mut c_void {
+    let mask = gate_mask();
+    LAST_BIND_MASK.store(mask as u32, Ordering::Release);
+    LAST_THREAD.store(GetCurrentThreadId() as usize, Ordering::Relaxed);
+    BIND_ENTRIES.fetch_add(1, Ordering::AcqRel);
+    let original: BindFn = core::mem::transmute(BIND_TRAMPOLINE.load(Ordering::Acquire));
+    original(ctx, panel)
+}
+
+#[derive(Clone, Copy, Debug, Eq, PartialEq)]
+enum InstallOutcome {
+    Installed,
+    CleanFailure,
+    DegradedHookActive,
+    DegradedProcessState,
+    DegradedHookAndProcess,
+}
+
+unsafe fn install_hook(base: usize) -> InstallOutcome {
+    let Some(bind) = crate::sbc_trace::target_va(base, BIND_RVA) else {
+        return InstallOutcome::CleanFailure;
+    };
+    let Some(gate) = crate::sbc_trace::target_va(base, HAS_CATEGORY_RVA) else {
+        return InstallOutcome::CleanFailure;
+    };
+    let Some(request) = crate::sbc_trace::target_va(base, REQUEST_GROUPS_RVA) else {
+        return InstallOutcome::CleanFailure;
+    };
+    // Fingerprint the image and ALL THREE functions: the one we detour and the two we
+    // call (gate probe, group request). A single mismatched byte aborts cleanly with
+    // no write and no call.
+    if !crate::sbc_trace::valid_cards_image(base)
+        || !crate::sbc_trace::executable_range_in_image(base, bind, BIND_SIGNATURE.len())
+        || !crate::sbc_trace::executable_range_in_image(base, gate, HAS_CATEGORY_SIGNATURE.len())
+        || !crate::sbc_trace::executable_range_in_image(
+            base,
+            request,
+            REQUEST_GROUPS_SIGNATURE.len(),
+        )
+        || core::slice::from_raw_parts(bind as *const u8, BIND_SIGNATURE.len()) != BIND_SIGNATURE
+        || core::slice::from_raw_parts(gate as *const u8, HAS_CATEGORY_SIGNATURE.len())
+            != HAS_CATEGORY_SIGNATURE
+        || core::slice::from_raw_parts(request as *const u8, REQUEST_GROUPS_SIGNATURE.len())
+            != REQUEST_GROUPS_SIGNATURE
+    {
+        return InstallOutcome::CleanFailure;
+    }
+    let mut pinned = core::ptr::null_mut();
+    if GetModuleHandleExA(
+        GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS | GET_MODULE_HANDLE_EX_FLAG_PIN,
+        bind as *const u8,
+        &mut pinned,
+    ) == 0
+        || pinned as usize != base
+    {
+        return InstallOutcome::CleanFailure;
+    }
+    let Some(trampoline) = crate::sbc_trace::allocate_trampoline(bind, COPY_LEN) else {
+        return InstallOutcome::CleanFailure;
+    };
+    BIND_TRAMPOLINE.store(trampoline, Ordering::Release);
+    STORE_BASE.store(base, Ordering::Release);
+
+    let Some(_gate_lock) = crate::sbc_trace::acquire_patch_installer_gate() else {
+        VirtualFree(trampoline as _, 0, MEM_RELEASE);
+        BIND_TRAMPOLINE.store(0, Ordering::Release);
+        return InstallOutcome::CleanFailure;
+    };
+    let mut peers = match crate::sbc_trace::suspend_peers(bind, bind) {
+        Ok(peers) => peers,
+        Err(crate::sbc_trace::QuiesceFailure::Acquire) => {
+            VirtualFree(trampoline as _, 0, MEM_RELEASE);
+            BIND_TRAMPOLINE.store(0, Ordering::Release);
+            return InstallOutcome::CleanFailure;
+        }
+        Err(crate::sbc_trace::QuiesceFailure::Resume) => {
+            return InstallOutcome::DegradedProcessState;
+        }
+    };
+    let final_valid = crate::sbc_trace::valid_cards_image(base)
+        && core::slice::from_raw_parts(bind as *const u8, BIND_SIGNATURE.len()) == BIND_SIGNATURE;
+    let transaction = if !final_valid {
+        InstallOutcome::CleanFailure
+    } else {
+        match write_entry(bind, bind_wrapper as *const () as usize, &BIND_SIGNATURE) {
+            Ok(()) => InstallOutcome::Installed,
+            Err(true) => InstallOutcome::CleanFailure,
+            Err(false) => InstallOutcome::DegradedHookActive,
+        }
+    };
+    let resumed = peers.resume_all();
+    let outcome = if resumed {
+        transaction
+    } else if matches!(
+        transaction,
+        InstallOutcome::Installed | InstallOutcome::DegradedHookActive
+    ) {
+        InstallOutcome::DegradedHookAndProcess
+    } else {
+        InstallOutcome::DegradedProcessState
+    };
+    if outcome == InstallOutcome::CleanFailure {
+        VirtualFree(trampoline as _, 0, MEM_RELEASE);
+        BIND_TRAMPOLINE.store(0, Ordering::Release);
+    }
+    outcome
+}
+
+unsafe fn worker() {
+    let _pending = crate::sbc_trace::CodeInstallerPending;
+    let mut base = 0usize;
+    for _ in 0..600u32 {
+        base = GetModuleHandleA(c"CardsDLL_Win64_retail.dll".as_ptr().cast()) as usize;
+        if base != 0 {
+            break;
+        }
+        std::thread::sleep(std::time::Duration::from_millis(500));
+    }
+    let outcome = if base == 0 {
+        InstallOutcome::CleanFailure
+    } else {
+        install_hook(base)
+    };
+    drop(_pending);
+    match outcome {
+        InstallOutcome::Installed => {
+            crate::write_log("STORE_TABS: bind sensor + pre-warm installed (promoted)\n")
+        }
+        InstallOutcome::CleanFailure => {
+            crate::write_log("STORE_TABS: clean install failure; inactive\n");
+            return;
+        }
+        InstallOutcome::DegradedHookActive => {
+            crate::write_log("STORE_TABS: DEGRADED hook may be active; terminate game now\n");
+            return;
+        }
+        InstallOutcome::DegradedProcessState => {
+            crate::write_log("STORE_TABS: DEGRADED thread state; terminate game now\n");
+            return;
+        }
+        InstallOutcome::DegradedHookAndProcess => {
+            crate::write_log("STORE_TABS: DEGRADED hook and thread state; terminate game now\n");
+            return;
+        }
+    }
+
+    let mut binds_seen = 0u64;
+    let mut reports = 0u8;
+    while reports < 64 {
+        std::thread::sleep(std::time::Duration::from_millis(250));
+        let binds = BIND_ENTRIES.load(Ordering::Acquire);
+        if binds != binds_seen {
+            crate::write_log(&format!(
+                "STORE_TABS: bind generation={} mask={:#04x} prewarm_fired={} storefront_seen={:#x} tid={}\n",
+                binds,
+                LAST_BIND_MASK.load(Ordering::Acquire),
+                PREWARM_ATTEMPTS.load(Ordering::Acquire),
+                PREWARM_STOREFRONT_SEEN.load(Ordering::Acquire),
+                LAST_THREAD.load(Ordering::Relaxed),
+            ));
+            binds_seen = binds;
+            reports += 1;
+        }
+    }
+    crate::write_log("STORE_TABS: report cap reached; hook remains installed\n");
+}
+
+pub(crate) fn install() {
+    // Promoted: armed by the build. No environment variable participates.
+    REPAIR_ENABLED.store(REPAIR_PROMOTED, Ordering::Release);
+    crate::write_log(
+        "STORE_TABS: bind sensor + pre-warm ARMED (promoted); strict signature gate\n",
+    );
+    std::thread::spawn(|| unsafe { worker() });
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn gate_indices_match_the_native_slot_order() {
+        // mypacks, bronze, silver, gold, special, points — the order FUN_18007e5e0
+        // tests them in, which is NOT the index order of FUN_180014580's jump table.
+        assert_eq!(GATE_INDICES, [0, 2, 3, 4, 5, 1]);
+    }
+
+    #[test]
+    fn prewarms_once_the_storefront_is_up() {
+        assert!(should_prewarm(false, 0x1000));
+    }
+
+    #[test]
+    fn waits_while_the_storefront_is_still_null() {
+        assert!(!should_prewarm(false, 0));
+    }
+
+    #[test]
+    fn never_prewarms_twice() {
+        assert!(!should_prewarm(true, 0x1000));
+    }
+
+    #[test]
+    fn detour_signature_is_long_enough_for_the_absolute_jump() {
+        assert!(BIND_SIGNATURE.len() >= ABS_JUMP_LEN);
+        assert_eq!(COPY_LEN, BIND_SIGNATURE.len());
+    }
+
+    #[test]
+    fn request_signature_covers_the_validated_prologue() {
+        // 18 bytes: `push rdi; sub rsp,0x90; movq [rsp+0x20],-2`.
+        assert_eq!(REQUEST_GROUPS_SIGNATURE.len(), 18);
+    }
+}

openfut-hook/src/tls_bypass.rs

@@ -1,40 +0,0 @@
-use std::sync::OnceLock;
-use windows_sys::Win32::Foundation::BOOL;
-
-// CERT_CHAIN_POLICY_STATUS.dwError offset 0 = u32 error code; 0 = success.
-// We use raw pointers to avoid pulling in the full Cryptography struct tree.
-type CertVerifyChainPolicyFn = unsafe extern "system" fn(
-    *const u8, // pszPolicyOID
-    *const (), // pChainContext
-    *const (), // pPolicyPara
-    *mut u32,  // &mut pPolicyStatus.dwError (first field)
-) -> BOOL;
-
-static REAL: OnceLock<CertVerifyChainPolicyFn> = OnceLock::new();
-
-pub fn set_real(f: CertVerifyChainPolicyFn) {
-    let _ = REAL.set(f);
-}
-
-/// Hooked CertVerifyCertificateChainPolicy — always reports success.
-/// This allows the bridge's self-signed TLS cert to be accepted by the game.
-pub unsafe extern "system" fn hooked_cert_verify_chain_policy(
-    psz_policy_oid: *const u8,
-    p_chain_context: *const (),
-    p_policy_para: *const (),
-    p_policy_status: *mut u32,
-) -> BOOL {
-    if let Some(real) = REAL.get().copied() {
-        real(
-            psz_policy_oid,
-            p_chain_context,
-            p_policy_para,
-            p_policy_status,
-        );
-    }
-    // Clear the error field of CERT_CHAIN_POLICY_STATUS regardless
-    if !p_policy_status.is_null() {
-        *p_policy_status = 0;
-    }
-    1 // TRUE = verified OK
-}

openfut-hook/src/transport_watch.rs

@@ -1,227 +0,0 @@
-//! Milestone 0 — Blaze transport reachability observation.
-//!
-//! PURE LOGGING, NO NEW DETOURS. This module does not hook anything itself. It is
-//! called from the three Winsock detours the hook ALREADY installs — getaddrinfo
-//! (`hooks.rs`), connect/WSAConnect (`connect_hook.rs`) and ConnectEx
-//! (`connectex_hook.rs`) — and, when armed, emits a single grep-friendly
-//! `TRANSPORT_WATCH:` line per resolution/connect so we can answer one question:
-//!
-//!   Does the FIFA 23 client attempt ANY Blaze-flavored transport activity across a
-//!   full menu+FUT session, or none at all?
-//!
-//! Everything here is READ-ONLY: we parse the hostname / sockaddr the game passed
-//! only to describe it in the log. We never change a resolution result or a
-//! connection target — that redirect logic lives in the detours themselves and is
-//! untouched. The env kill switch `OPENFUT_TRANSPORT_WATCH=1` gates all output;
-//! disarmed (default) this module is inert (each entry point returns immediately).
-//!
-//! Future-reference note (beyond-beginner, deliberately NOT done here): a
-//! types-first design would model a `ConnectTarget` enum (Inet{ip,port} / NonInet /
-//! Short) and a `TransportEvent` and route them through the `tracing` crate with
-//! structured fields, instead of hand-formatting strings into a flat log file. That
-//! buys machine-parseable logs and log levels. For a one-shot observation gate,
-//! flat `write_log` lines that `grep` cleanly are the lower-ceremony choice.
-
-use core::sync::atomic::{AtomicBool, Ordering};
-
-/// Armed once at DLL load from `OPENFUT_TRANSPORT_WATCH`. `AtomicBool` (not a plain
-/// `static mut bool`) because the detours that read it run on arbitrary game threads;
-/// an atomic gives race-free reads with no `unsafe`. `Relaxed` is enough — this is a
-/// standalone flag with no ordering relationship to other memory.
-static ARMED: AtomicBool = AtomicBool::new(false);
-
-/// Read the env var once, at DLL load, and log the arm state. Called from `DllMain`
-/// (`install_hooks`). Reading the env in-process (rather than as a command prefix) is
-/// what makes the switch actually propagate through the umu/Proton launch — the same
-/// gotcha the probe switches hit; it works because the launch script `export`s it.
-pub fn arm_from_env() {
-    let on = std::env::var("OPENFUT_TRANSPORT_WATCH")
-        .map(|v| v == "1")
-        .unwrap_or(false);
-    ARMED.store(on, Ordering::Relaxed);
-    crate::write_log(&format!(
-        "TRANSPORT_WATCH: {} (env OPENFUT_TRANSPORT_WATCH)\n",
-        if on { "ARMED" } else { "disarmed" }
-    ));
-}
-
-fn armed() -> bool {
-    ARMED.load(Ordering::Relaxed)
-}
-
-/// True if `host` looks like EA/Blaze infrastructure. Broad on purpose: this is a log
-/// classifier that makes a hit visually pop (`<-- BLAZE/EA-FLAVORED`), NOT a routing
-/// decision. The actual redirect decision stays in `hooks::is_ea_host`, which is
-/// deliberately narrower and unchanged.
-fn is_blaze_flavored(host: &str) -> bool {
-    let h = host.to_ascii_lowercase();
-    [
-        "redirector",
-        "gosredirector",
-        "blaze",
-        "gosca",
-        "easfc",
-        "utas",
-        "fut",
-        "ea.com",
-        "easports",
-    ]
-    .iter()
-    .any(|k| h.contains(k))
-}
-
-/// Log one getaddrinfo hostname. Self-gates on the arm flag, so the call site can be
-/// unconditional. The existing `openfut_hook: getaddrinfo(...)` line stays; this adds
-/// the tagged, classified line so `grep TRANSPORT_WATCH` sees the full resolution set
-/// and a Blaze host stands out.
-pub fn note_getaddrinfo(host: &str) {
-    if !armed() {
-        return;
-    }
-    let tag = if is_blaze_flavored(host) {
-        "  <-- BLAZE/EA-FLAVORED"
-    } else {
-        ""
-    };
-    crate::write_log(&format!(
-        "TRANSPORT_WATCH: getaddrinfo host=\"{host}\"{tag}\n"
-    ));
-}
-
-const AF_INET: u16 = 2; // IPv4
-const AF_INET6: u16 = 23; // IPv6 (Windows value; Linux uses 10 — we're in Wine/Win ABI)
-
-/// Minimal view of a `sockaddr_in`; the first `u16` is the address family for ANY
-/// sockaddr, so reading this layout is safe enough to classify the family even when
-/// the real struct is a `sockaddr_un` or larger — we only trust the rest once we've
-/// confirmed `sin_family == AF_INET`.
-#[repr(C)]
-struct SockaddrIn {
-    sin_family: u16,
-    sin_port: u16,
-    sin_addr: u32,
-    sin_zero: [u8; 8],
-}
-
-/// Minimal view of a `sockaddr_in6` (Win32 layout). `sin6_port` is network byte order;
-/// `sin6_addr` is the 16 raw address bytes in network order. We ignore flowinfo/scope.
-#[repr(C)]
-struct SockaddrIn6 {
-    sin6_family: u16,
-    sin6_port: u16,
-    sin6_flowinfo: u32,
-    sin6_addr: [u8; 16],
-    sin6_scope_id: u32,
-}
-
-/// Is `port` a known/suspected Blaze port? SHAPE — public general knowledge; the exact
-/// port for FIFA23's Blaze version is UNKNOWN. 42127 main, 10041/10744 redirector
-/// variants, 3659 classic redirector.
-fn is_blaze_port(port: u16) -> bool {
-    matches!(port, 42127 | 10744 | 3659 | 10041)
-}
-
-/// Log one outbound connect attempt. `api` names the call path (`connect` /
-/// `WSAConnect` / `ConnectEx`) so we can tell which Winsock entry the client used.
-///
-/// SAFETY: `name` must point to at least `namelen` readable bytes — it's the sockaddr
-/// the game just handed to a Winsock connect API, so that always holds at the call
-/// sites. We read it read-only and never write through it. `s` is the socket handle,
-/// used only to query `SO_TYPE` (TCP=1 / UDP=2) so a real Blaze TCP dial is
-/// distinguishable from UDP game/voice traffic.
-pub unsafe fn note_connect(api: &str, name: *const u8, namelen: i32, s: usize) {
-    if !armed() {
-        return;
-    }
-    if name.is_null() || namelen < 8 {
-        crate::write_log(&format!(
-            "TRANSPORT_WATCH: {api} (no/short sockaddr, namelen={namelen})\n"
-        ));
-        return;
-    }
-    // SAFE: name is non-null and >= 8 bytes (checked above); the first u16 is the
-    // address family for ANY sockaddr, so reading it is valid regardless of the real
-    // struct type. We only trust family-specific fields after matching the family.
-    let family = *(name as *const u16);
-
-    // SAFE: getsockopt is a read-only Winsock query on a valid socket handle; a bad
-    // handle just leaves ty=-1, which we log verbatim. TCP=1 / UDP=2.
-    let sock_type = {
-        use windows_sys::Win32::Networking::WinSock::{getsockopt, SOL_SOCKET, SO_TYPE};
-        let mut ty: i32 = -1;
-        let mut len: i32 = 4;
-        getsockopt(
-            s,
-            SOL_SOCKET as i32,
-            SO_TYPE,
-            &mut ty as *mut i32 as *mut u8,
-            &mut len,
-        );
-        ty
-    };
-
-    match family {
-        AF_INET => {
-            // SAFE: family is AF_INET and namelen >= 8 == sizeof(sockaddr_in) fields we read.
-            let sa = &*(name as *const SockaddrIn);
-            // sin_addr holds the address in NETWORK byte order; on little-endian x86,
-            // to_le_bytes reproduces those 4 bytes in memory order, which IS the dotted
-            // quad. So b[0].b[1].b[2].b[3] is correct. (The legacy connect_hook log line
-            // prints these reversed — a cosmetic bug there; this M0 line is the correct
-            // one to trust.)
-            let b = sa.sin_addr.to_le_bytes();
-            let port = u16::from_be(sa.sin_port);
-            let is_loopback = b[0] == 127;
-            let is_lsx = matches!(port, 3216 | 3217); // known-good LSX channel; not Blaze
-            let mut tag = String::new();
-            if is_blaze_port(port) {
-                tag.push_str("  <-- BLAZE-PORT");
-            }
-            // A loopback connect on anything other than LSX is the situation-(a) signal.
-            if is_loopback && !is_lsx {
-                tag.push_str("  <-- LOOPBACK non-LSX");
-            }
-            crate::write_log(&format!(
-                "TRANSPORT_WATCH: {api} target={}.{}.{}.{}:{port} sock_type={sock_type}{tag}\n",
-                b[0], b[1], b[2], b[3]
-            ));
-        }
-        AF_INET6 => {
-            if namelen < 28 {
-                crate::write_log(&format!(
-                    "TRANSPORT_WATCH: {api} family=INET6 (short sockaddr, namelen={namelen})\n"
-                ));
-                return;
-            }
-            // SAFE: family is AF_INET6 and namelen >= 28 == sizeof(sockaddr_in6).
-            let sa = &*(name as *const SockaddrIn6);
-            let a = sa.sin6_addr; // 16 bytes, network order
-            let port = u16::from_be(sa.sin6_port);
-            // Format as 8 colon-separated hex groups (not compressed — clarity over
-            // brevity for a log meant to be grepped).
-            let hex = (0..8)
-                .map(|i| format!("{:02x}{:02x}", a[i * 2], a[i * 2 + 1]))
-                .collect::<Vec<_>>()
-                .join(":");
-            // ::1 = loopback: first 15 bytes zero, last byte 1.
-            let is_loopback = a[..15].iter().all(|&x| x == 0) && a[15] == 1;
-            let mut tag = String::new();
-            if is_blaze_port(port) {
-                tag.push_str("  <-- BLAZE-PORT");
-            }
-            if is_loopback {
-                tag.push_str("  <-- IPv6 LOOPBACK (::1)");
-            }
-            crate::write_log(&format!(
-                "TRANSPORT_WATCH: {api} target=[{hex}]:{port} sock_type={sock_type} (IPv6){tag}\n"
-            ));
-        }
-        other => {
-            // AF_UNIX=1 or anything else — where a named-pipe/unix-socket-style local
-            // Blaze transport would surface.
-            crate::write_log(&format!(
-                "TRANSPORT_WATCH: {api} family={other} (non-INET — possible AF_UNIX/pipe-like)\n"
-            ));
-        }
-    }
-}

openfut-hook/tests/connect_hook.rs

@@ -0,0 +1,10 @@
+#![cfg(windows)]
+#![allow(dead_code)]
+
+// Compile the production connect hook directly into an executable test target.
+// The hook crate itself is a cdylib, whose unit-test artifact remains a DLL and
+// therefore cannot be executed by the native Windows test runner.
+fn write_log(_: &str) {}
+
+#[path = "../src/connect_hook.rs"]
+mod connect_hook;

src/account_monitor.rs

@@ -0,0 +1,123 @@
+//! Read-only background polling of the OpenFUT account summary.
+//!
+//! The launcher already POSTs `/openfut/account/sync` once at launch time
+//! (see [`crate::account_sync::sync`]) to select the active profile. This
+//! module reuses that request in a background thread so the Dashboard can show
+//! a live "Your Club" card — coins, level, packs — without ever blocking the UI
+//! thread on the network. It mirrors [`crate::health::HealthMonitor`]: a shared
+//! target the UI re-points when the server config changes, and a shared state
+//! snapshot the UI renders each frame.
+
+use parking_lot::Mutex;
+use std::{
+    sync::{
+        atomic::{AtomicBool, Ordering},
+        Arc,
+    },
+    thread,
+    time::{Duration, Instant},
+};
+
+use crate::account_sync::{self, AccountSummary};
+use crate::config::LauncherConfig;
+
+const POLL_INTERVAL: Duration = Duration::from_secs(5);
+
+/// A snapshot of the last account fetch, rendered by the dashboard.
+#[derive(Clone, Default)]
+pub struct AccountState {
+    /// The most recently fetched summary, or None while none has succeeded.
+    pub summary: Option<AccountSummary>,
+    /// The error from the latest failed attempt (cleared on success).
+    pub error: Option<String>,
+    /// Whether a server target is currently configured. `false` = idle: the
+    /// launcher has nothing to poll, so the UI shows the "connect" prompt.
+    pub configured: bool,
+    pub last_checked: Option<Instant>,
+}
+
+impl AccountState {
+    /// True when the latest error looks like a connectivity failure (server
+    /// down / unresolvable) rather than a protocol/validation error. Lets the
+    /// UI show the calm "offline" prompt for the common "server not up" case
+    /// and reserve the loud error state for genuinely broken responses.
+    pub fn unreachable(&self) -> bool {
+        self.error.as_deref().is_some_and(|e| {
+            e.contains("cannot connect")
+                || e.contains("cannot resolve")
+                || e.contains("resolved to no addresses")
+        })
+    }
+}
+
+/// Background poller. Holds a shared target config the UI can update when the
+/// user changes the server address/account, and a shared state the UI reads.
+pub struct AccountMonitor {
+    pub state: Arc<Mutex<AccountState>>,
+    target: Arc<Mutex<Option<LauncherConfig>>>,
+    running: Arc<AtomicBool>,
+}
+
+impl AccountMonitor {
+    pub fn new() -> Self {
+        let state = Arc::new(Mutex::new(AccountState::default()));
+        let target: Arc<Mutex<Option<LauncherConfig>>> = Arc::new(Mutex::new(None));
+        let running = Arc::new(AtomicBool::new(true));
+
+        let t_state = Arc::clone(&state);
+        let t_target = Arc::clone(&target);
+        let t_running = Arc::clone(&running);
+        thread::spawn(move || {
+            while t_running.load(Ordering::Relaxed) {
+                let target = t_target.lock().clone();
+                match target {
+                    None => {
+                        // No server configured — reset to the idle prompt state.
+                        *t_state.lock() = AccountState::default();
+                    }
+                    Some(config) => {
+                        let result = account_sync::sync(&config);
+                        let mut state = t_state.lock();
+                        state.configured = true;
+                        state.last_checked = Some(Instant::now());
+                        match result {
+                            Ok(summary) => {
+                                state.summary = Some(summary);
+                                state.error = None;
+                            }
+                            Err(error) => {
+                                // Drop the stale summary so the card never shows
+                                // populated data alongside an error/offline pill.
+                                state.summary = None;
+                                state.error = Some(error);
+                            }
+                        }
+                    }
+                }
+                thread::sleep(POLL_INTERVAL);
+            }
+        });
+
+        Self {
+            state,
+            target,
+            running,
+        }
+    }
+
+    /// Point the monitor at a new server/account. `None` (no server configured)
+    /// puts it back into the idle prompt state.
+    pub fn set_target(&self, target: Option<LauncherConfig>) {
+        *self.target.lock() = target;
+    }
+
+    pub fn snapshot(&self) -> AccountState {
+        self.state.lock().clone()
+    }
+}
+
+impl Drop for AccountMonitor {
+    fn drop(&mut self) {
+        self.running.store(false, Ordering::Relaxed);
+    }
+}

src/account_sync.rs

@@ -0,0 +1,342 @@
+use crate::config::LauncherConfig;
+use serde::{Deserialize, Serialize};
+use std::io::{Read, Write};
+use std::net::{TcpStream, ToSocketAddrs};
+use std::time::Duration;
+
+const ACCOUNT_SYNC_PATH: &str = "/openfut/account/sync";
+const TIMEOUT: Duration = Duration::from_secs(3);
+
+/// The launcher's view of the account, sent on every sync.
+///
+/// `persona_id`/`persona_name` are `Option` because omitting them is meaningful:
+/// the server then answers with the persona *it* is configured for, which is how
+/// first-run account creation learns an identity instead of inventing one.
+#[derive(Debug, Serialize)]
+#[serde(rename_all = "camelCase")]
+struct AccountSyncRequest<'a> {
+    #[serde(skip_serializing_if = "Option::is_none")]
+    persona_id: Option<u64>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    persona_name: Option<&'a str>,
+    level: u32,
+    experience: u32,
+    experience_max: u32,
+    account_funds: u32,
+    account_funds_cap: u32,
+}
+
+#[derive(Debug, Deserialize)]
+pub struct AccountSyncResult {
+    pub account: AccountSummary,
+}
+
+#[derive(Debug, Clone, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct AccountSummary {
+    pub persona_id: u64,
+    pub persona_name: String,
+    /// Club identity for the account bar. Optional in older envelopes.
+    #[serde(default)]
+    pub club_name: String,
+    #[serde(default)]
+    pub club_abbr: String,
+    pub level: u32,
+    pub experience: u32,
+    /// XP required for the next level. Optional; 0 means "unknown".
+    #[serde(default)]
+    pub experience_max: u32,
+    pub account_funds: u32,
+    /// EASFC funds ceiling. Optional; 0 means "unknown".
+    #[serde(default)]
+    pub account_funds_cap: u32,
+    pub coins: i64,
+    pub unopened_packs: usize,
+}
+
+/// Select the persistent EA/FUT account before LSX and FIFA start.
+///
+/// This deliberately uses a tiny stdlib HTTP client so the launcher does not
+/// acquire an async runtime solely for one bounded control-plane request.
+pub fn sync(config: &LauncherConfig) -> Result<AccountSummary, String> {
+    config.validate_server()?;
+    config.validate_account()?;
+    let account = post(
+        config,
+        &AccountSyncRequest {
+            persona_id: Some(config.fut_persona_id),
+            persona_name: Some(config.fut_persona_name.trim()),
+            level: config.fut_account_level,
+            experience: config.fut_account_experience,
+            experience_max: config.fut_account_experience_max,
+            account_funds: config.fut_account_funds,
+            account_funds_cap: config.fut_account_funds_cap,
+        },
+    )?;
+    // The server echoes the persona it selected. A different one means the two
+    // sides disagree about who is playing, which must never pass silently.
+    if account.persona_id != config.fut_persona_id {
+        return Err(format!(
+            "account server selected persona {} instead of {}",
+            account.persona_id, config.fut_persona_id
+        ));
+    }
+    Ok(account)
+}
+
+/// Ask the server which account it serves, for first-run account creation.
+///
+/// Sending no persona makes the server fall back to the one it was started with
+/// and answer with its real club and Core coin balance. That is the whole reason
+/// the launcher never has to invent a persona id: the identity that matters is
+/// the server's, and this is how it is claimed.
+pub fn discover(config: &LauncherConfig) -> Result<AccountSummary, String> {
+    config.validate_server()?;
+    let account = post(
+        config,
+        &AccountSyncRequest {
+            persona_id: None,
+            persona_name: None,
+            level: config.fut_account_level.max(1),
+            experience: config.fut_account_experience,
+            experience_max: config.fut_account_experience_max.max(1),
+            account_funds: config.fut_account_funds,
+            account_funds_cap: config.fut_account_funds_cap,
+        },
+    )?;
+    if account.persona_id == 0 {
+        return Err(
+            "account server returned no persona — is it configured with \
+                    a persona id?"
+                .to_string(),
+        );
+    }
+    if account.persona_name.trim().is_empty() {
+        return Err("account server returned an empty persona name".to_string());
+    }
+    Ok(account)
+}
+
+/// One bounded POST to `/openfut/account/sync`, returning the account summary.
+fn post(config: &LauncherConfig, body: &AccountSyncRequest<'_>) -> Result<AccountSummary, String> {
+    let host = config.openfut_server_host.trim();
+    let port = config.openfut_account_sync_port;
+    let address = (host, port)
+        .to_socket_addrs()
+        .map_err(|error| format!("cannot resolve account server {host}:{port}: {error}"))?
+        .next()
+        .ok_or_else(|| format!("account server {host}:{port} resolved to no addresses"))?;
+    let mut stream = TcpStream::connect_timeout(&address, TIMEOUT)
+        .map_err(|error| format!("cannot connect to account server {host}:{port}: {error}"))?;
+    stream
+        .set_read_timeout(Some(TIMEOUT))
+        .map_err(|error| format!("cannot set account sync timeout: {error}"))?;
+    stream
+        .set_write_timeout(Some(TIMEOUT))
+        .map_err(|error| format!("cannot set account sync timeout: {error}"))?;
+
+    let payload = serde_json::to_vec(body)
+        .map_err(|error| format!("cannot encode account sync request: {error}"))?;
+
+    let request = format!(
+        "POST {ACCOUNT_SYNC_PATH} HTTP/1.1\r\nHost: {host}:{port}\r\nContent-Type: application/json\r\nContent-Length: {}\r\nConnection: close\r\n\r\n",
+        payload.len()
+    );
+    stream
+        .write_all(request.as_bytes())
+        .and_then(|()| stream.write_all(&payload))
+        .map_err(|error| format!("cannot send account sync request: {error}"))?;
+
+    let mut response = Vec::new();
+    stream
+        .read_to_end(&mut response)
+        .map_err(|error| format!("cannot read account sync response: {error}"))?;
+    let separator = response
+        .windows(4)
+        .position(|window| window == b"\r\n\r\n")
+        .ok_or_else(|| "account server returned a malformed HTTP response".to_string())?;
+    let headers = std::str::from_utf8(&response[..separator])
+        .map_err(|_| "account server returned non-UTF-8 headers".to_string())?;
+    let status = headers
+        .lines()
+        .next()
+        .and_then(|line| line.split_whitespace().nth(1))
+        .and_then(|value| value.parse::<u16>().ok())
+        .ok_or_else(|| "account server returned a malformed status line".to_string())?;
+    let response_body = &response[separator + 4..];
+    if !(200..300).contains(&status) {
+        let detail = String::from_utf8_lossy(response_body);
+        return Err(format!(
+            "account server rejected sync (HTTP {status}): {detail}"
+        ));
+    }
+    let envelope: AccountSyncResult = serde_json::from_slice(response_body)
+        .map_err(|error| format!("account server returned invalid JSON: {error}"))?;
+    Ok(envelope.account)
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use std::net::TcpListener;
+    use std::thread;
+
+    #[test]
+    fn sync_posts_account_and_reads_selected_profile() {
+        let listener = TcpListener::bind("127.0.0.1:0").unwrap();
+        let port = listener.local_addr().unwrap().port();
+        let server = thread::spawn(move || {
+            let (mut socket, _) = listener.accept().unwrap();
+            let mut request = Vec::new();
+            loop {
+                let mut chunk = [0; 1024];
+                let count = socket.read(&mut chunk).unwrap();
+                assert!(count > 0);
+                request.extend_from_slice(&chunk[..count]);
+                if let Some(separator) = request.windows(4).position(|w| w == b"\r\n\r\n") {
+                    let headers = String::from_utf8_lossy(&request[..separator]);
+                    let length = headers
+                        .lines()
+                        .find_map(|line| line.strip_prefix("Content-Length: "))
+                        .unwrap()
+                        .parse::<usize>()
+                        .unwrap();
+                    if request.len() >= separator + 4 + length {
+                        break;
+                    }
+                }
+            }
+            let request = String::from_utf8_lossy(&request);
+            assert!(request.starts_with("POST /openfut/account/sync HTTP/1.1"));
+            assert!(request.contains("\"personaId\":12345678"));
+            assert!(request.contains("\"personaName\":\"TEST_USER\""));
+            let body = r#"{"status":"OK","account":{"personaId":12345678,"personaName":"TEST_USER","level":7,"experience":200,"accountFunds":50,"coins":15000,"unopenedPacks":1}}"#;
+            write!(
+                socket,
+                "HTTP/1.1 200 OK\r\nContent-Type: application/json\r\nContent-Length: {}\r\nConnection: close\r\n\r\n{}",
+                body.len(),
+                body
+            )
+            .unwrap();
+        });
+
+        let config = LauncherConfig {
+            openfut_server_host: "127.0.0.1".into(),
+            openfut_account_sync_port: port,
+            fut_persona_id: 12345678,
+            fut_persona_name: "TEST_USER".into(),
+            fut_account_level: 7,
+            fut_account_experience: 200,
+            ..LauncherConfig::default()
+        };
+        let selected = sync(&config).unwrap();
+        assert_eq!(selected.persona_name, "TEST_USER");
+        assert_eq!(selected.coins, 15000);
+        assert_eq!(selected.unopened_packs, 1);
+        server.join().unwrap();
+    }
+
+    /// Serve exactly one `/openfut/account/sync` POST, handing the decoded
+    /// request text to `inspect` and replying with `body`.
+    fn serve_once(
+        inspect: impl FnOnce(&str) + Send + 'static,
+        body: &'static str,
+    ) -> (u16, thread::JoinHandle<()>) {
+        let listener = TcpListener::bind("127.0.0.1:0").unwrap();
+        let port = listener.local_addr().unwrap().port();
+        let handle = thread::spawn(move || {
+            let (mut socket, _) = listener.accept().unwrap();
+            let mut request = Vec::new();
+            loop {
+                let mut chunk = [0; 1024];
+                let count = socket.read(&mut chunk).unwrap();
+                assert!(count > 0);
+                request.extend_from_slice(&chunk[..count]);
+                if let Some(separator) = request.windows(4).position(|w| w == b"\r\n\r\n") {
+                    let headers = String::from_utf8_lossy(&request[..separator]);
+                    let length = headers
+                        .lines()
+                        .find_map(|line| line.strip_prefix("Content-Length: "))
+                        .unwrap()
+                        .parse::<usize>()
+                        .unwrap();
+                    if request.len() >= separator + 4 + length {
+                        break;
+                    }
+                }
+            }
+            inspect(&String::from_utf8_lossy(&request));
+            write!(
+                socket,
+                "HTTP/1.1 200 OK\r\nContent-Type: application/json\r\nContent-Length: {}\r\nConnection: close\r\n\r\n{}",
+                body.len(),
+                body
+            )
+            .unwrap();
+        });
+        (port, handle)
+    }
+
+    #[test]
+    fn discover_omits_the_persona_so_the_server_names_its_own() {
+        // The point of first-run discovery: the launcher must not send a guessed
+        // persona, because the server would echo the guess straight back.
+        let (port, server) = serve_once(
+            |request| {
+                assert!(!request.contains("personaId"), "{request}");
+                assert!(!request.contains("personaName"), "{request}");
+            },
+            r#"{"status":"OK","account":{"personaId":33068179,"personaName":"CAGE","clubName":"OpenFUT","clubAbbr":"OFC","level":1,"experience":0,"accountFunds":0,"coins":29876776,"unopenedPacks":0}}"#,
+        );
+        let config = LauncherConfig {
+            openfut_server_host: "127.0.0.1".into(),
+            openfut_account_sync_port: port,
+            ..LauncherConfig::default()
+        };
+        // Deliberately an unconfigured account: discovery must work before one
+        // exists, which is the whole reason it does not call `validate_account`.
+        assert_eq!(config.fut_persona_id, 0);
+        let found = discover(&config).unwrap();
+        assert_eq!(found.persona_id, 33_068_179);
+        assert_eq!(found.persona_name, "CAGE");
+        assert_eq!(found.club_name, "OpenFUT");
+        assert_eq!(found.coins, 29_876_776);
+        server.join().unwrap();
+    }
+
+    #[test]
+    fn discover_rejects_a_server_that_names_no_persona() {
+        // A zero persona would otherwise be written into the config as a real
+        // account and fail much later, at launch, as a mismatch.
+        let (port, server) = serve_once(
+            |_| {},
+            r#"{"status":"OK","account":{"personaId":0,"personaName":"","level":1,"experience":0,"accountFunds":0,"coins":0,"unopenedPacks":0}}"#,
+        );
+        let config = LauncherConfig {
+            openfut_server_host: "127.0.0.1".into(),
+            openfut_account_sync_port: port,
+            ..LauncherConfig::default()
+        };
+        let error = discover(&config).unwrap_err();
+        assert!(error.contains("no persona"), "{error}");
+        server.join().unwrap();
+    }
+
+    #[test]
+    fn sync_refuses_a_server_that_selects_a_different_persona() {
+        let (port, server) = serve_once(
+            |_| {},
+            r#"{"status":"OK","account":{"personaId":999,"personaName":"OTHER","level":1,"experience":0,"accountFunds":0,"coins":0,"unopenedPacks":0}}"#,
+        );
+        let config = LauncherConfig {
+            openfut_server_host: "127.0.0.1".into(),
+            openfut_account_sync_port: port,
+            fut_persona_id: 12345678,
+            fut_persona_name: "TEST_USER".into(),
+            ..LauncherConfig::default()
+        };
+        let error = sync(&config).unwrap_err();
+        assert!(error.contains("999"), "{error}");
+        server.join().unwrap();
+    }
+}

src/arm.rs

@@ -0,0 +1,254 @@
+//! One-click client arming — the GUI equivalent of `client_arm.sh`, driven by
+//! [`LauncherConfig`] so it repairs exactly what [`crate::preflight`] checks.
+//!
+//! Everything the game reaches by a routable address is redirected to the
+//! OpenFUT server; two things are inherently local and are NOT touched here (they
+//! are managed as child processes, see [`crate::local_services`]): the LSX/Origin
+//! emulator on loopback `:4216` and `autopatch`.
+//!
+//! The three privileged steps run in ONE elevated batch (a single `pkexec`
+//! prompt), mirroring the volatile state `client_arm.sh` set by hand:
+//!
+//! 1. `kernel.yama.ptrace_scope=0` — so `autopatch` can write FIFA's `/proc/PID/mem`.
+//! 2. DNAT EA's hardcoded redirector IP → `server:redirector_port` (+ MASQUERADE
+//!    on the reply path, required for a DNAT to a remote host).
+//! 3. Point each dead EA hostname at the server in `/etc/hosts`.
+//!
+//! All of it is idempotent: the DNAT deletes any prior copy before adding, and
+//! every `/etc/hosts` line for a managed hostname is removed first — including a
+//! foreign single-machine-era `127.0.0.1 easw.easports.com` shadow that
+//! `client_arm.sh` could not remove, because it only deleted its own `# openfut`
+//! lines and glibc returns the FIRST match.
+
+use crate::config::LauncherConfig;
+
+/// Accept only hostname/IP characters. These values come from config fields that
+/// are ever only IPs or hostnames, so a surprising character is a bug — reject it
+/// rather than try to escape it into an elevated shell command.
+#[cfg(unix)]
+fn safe_host(s: &str) -> anyhow::Result<&str> {
+    let t = s.trim();
+    if t.is_empty() {
+        anyhow::bail!("empty host/address");
+    }
+    if t.bytes()
+        .all(|b| b.is_ascii_alphanumeric() || matches!(b, b'.' | b':' | b'-' | b'_'))
+    {
+        Ok(t)
+    } else {
+        anyhow::bail!("refusing to arm with an unexpected character in {t:?}");
+    }
+}
+
+/// Build the privileged arming script. Pure and unit-tested; the effectful part
+/// ([`arm`]) only validates config and hands this to the elevated runner.
+#[cfg(unix)]
+pub(crate) fn arming_script(
+    server: &str,
+    redirector_port: u16,
+    ea_ip: &str,
+    hostnames: &[String],
+) -> anyhow::Result<String> {
+    let server = safe_host(server)?;
+    let ea_ip = safe_host(ea_ip)?;
+
+    let mut s = String::from("set -eu\n");
+
+    // 1) ptrace_scope for autopatch's /proc/PID/mem write.
+    s.push_str("sysctl -q kernel.yama.ptrace_scope=0\n");
+
+    // 2) DNAT EA's hardcoded redirector IP to the server; SNAT the redirected
+    //    flow (a DNAT from OUTPUT to a remote host needs a matching MASQUERADE or
+    //    the server's replies won't match the game's conntrack entry). Both are
+    //    delete-then-add so re-running and IP changes stay clean.
+    s.push_str(&format!(
+        "while iptables -t nat -D OUTPUT -p tcp -d {ea_ip} -j DNAT --to-destination {server}:{redirector_port} 2>/dev/null; do :; done\n\
+         iptables -t nat -A OUTPUT -p tcp -d {ea_ip} -j DNAT --to-destination {server}:{redirector_port}\n\
+         while iptables -t nat -D POSTROUTING -p tcp -d {server} --dport {redirector_port} -j MASQUERADE 2>/dev/null; do :; done\n\
+         iptables -t nat -A POSTROUTING -p tcp -d {server} --dport {redirector_port} -j MASQUERADE\n"
+    ));
+
+    // 3) Every dead EA hostname resolves to the server. Delete ALL existing lines
+    //    listing the name (foreign shadow included) BEFORE writing ours, so the
+    //    first-match-wins resolution can never land on a stale loopback line.
+    for host in hostnames {
+        let host = safe_host(host)?;
+        let re = host.replace('.', "\\.");
+        s.push_str(&format!(
+            "sed -ri '/[[:space:]]{re}([[:space:]]|$)/d' /etc/hosts\n\
+             printf '%s\\t%s\\t# openfut\\n' '{server}' '{host}' >> /etc/hosts\n"
+        ));
+    }
+
+    Ok(s)
+}
+
+/// Human-readable list of what [`arm`] changed, in the order the script applies
+/// it. Logged by the UI so the user sees exactly what was set — not just that
+/// "something" ran under `pkexec`.
+#[cfg(unix)]
+pub(crate) fn arming_summary(
+    server: &str,
+    redirector_port: u16,
+    ea_ip: &str,
+    hostnames: &[String],
+) -> Vec<String> {
+    let mut out = vec![
+        "kernel.yama.ptrace_scope = 0 (autopatch can attach)".to_string(),
+        format!("DNAT {ea_ip} -> {server}:{redirector_port} (+ MASQUERADE reply path)"),
+    ];
+    for host in hostnames {
+        out.push(format!("hosts: {host} -> {server}"));
+    }
+    out
+}
+
+/// Arm the client from config, under one elevated prompt. Requires the same
+/// fields preflight reads; a missing one is a clear error, never a silent
+/// loopback fallback. Returns the applied changes for the UI to surface.
+/// On native Windows there is nothing to arm: routing is the `openfut.cfg` the
+/// client-files step writes into the game directory (read by the version.dll
+/// hook), and there is no `ptrace_scope`, DNAT, or `/etc/hosts` to set. Returns
+/// no changes so the launch sequence treats client preparation as satisfied.
+#[cfg(windows)]
+pub fn arm(_cfg: &LauncherConfig) -> anyhow::Result<Vec<String>> {
+    Ok(Vec::new())
+}
+
+#[cfg(unix)]
+pub fn arm(cfg: &LauncherConfig) -> anyhow::Result<Vec<String>> {
+    let server = cfg.openfut_server_host.trim();
+    if server.is_empty() {
+        anyhow::bail!("Set the OpenFUT server host in Settings before arming.");
+    }
+    let ea_ip = cfg.ea_redirect_probe_ip.trim();
+    if ea_ip.is_empty() {
+        anyhow::bail!("Set the EA redirector IP (Settings) before arming.");
+    }
+    if cfg.ea_hostnames.is_empty() {
+        anyhow::bail!(
+            "Add at least one EA hostname (e.g. easw.easports.com) in Settings before arming."
+        );
+    }
+    let redirector_port = cfg.openfut_blaze_redirector_port;
+    let script = arming_script(server, redirector_port, ea_ip, &cfg.ea_hostnames)?;
+    crate::setup::run_elevated(&script)?;
+    Ok(arming_summary(
+        server,
+        redirector_port,
+        ea_ip,
+        &cfg.ea_hostnames,
+    ))
+}
+
+#[cfg(all(test, unix))]
+mod tests {
+    use super::*;
+
+    fn script() -> String {
+        arming_script(
+            "10.10.0.120",
+            42127,
+            "159.153.51.20",
+            &["easw.easports.com".to_string()],
+        )
+        .unwrap()
+    }
+
+    #[test]
+    fn sets_ptrace_scope_zero() {
+        assert!(script().contains("sysctl -q kernel.yama.ptrace_scope=0"));
+    }
+
+    #[test]
+    fn dnats_ea_ip_to_server_and_masquerades() {
+        let s = script();
+        assert!(s.contains(
+            "iptables -t nat -A OUTPUT -p tcp -d 159.153.51.20 -j DNAT --to-destination 10.10.0.120:42127"
+        ));
+        assert!(s.contains(
+            "iptables -t nat -A POSTROUTING -p tcp -d 10.10.0.120 --dport 42127 -j MASQUERADE"
+        ));
+    }
+
+    #[test]
+    fn dnat_is_delete_then_add_for_idempotence() {
+        let s = script();
+        // The delete loop precedes the add, so re-arming never stacks duplicates.
+        let del = s.find("-D OUTPUT").unwrap();
+        let add = s.find("-A OUTPUT").unwrap();
+        assert!(del < add, "delete must run before add");
+    }
+
+    #[test]
+    fn removes_shadowing_hosts_line_before_writing_ours() {
+        let s = script();
+        // Deletes any existing easw.easports.com line (foreign shadow included)…
+        assert!(
+            s.contains("sed -ri '/[[:space:]]easw\\.easports\\.com([[:space:]]|$)/d' /etc/hosts")
+        );
+        // …then appends the OpenFUT-tagged mapping to the server.
+        assert!(s.contains(
+            "printf '%s\\t%s\\t# openfut\\n' '10.10.0.120' 'easw.easports.com' >> /etc/hosts"
+        ));
+        let del = s.find("sed -ri").unwrap();
+        let add = s.find("printf").unwrap();
+        assert!(del < add, "shadow removal must precede our line");
+    }
+
+    #[test]
+    fn multiple_hostnames_each_get_a_mapping() {
+        let s = arming_script(
+            "10.10.0.120",
+            42127,
+            "159.153.51.20",
+            &["easw.easports.com".into(), "utas.fut.ea.com".into()],
+        )
+        .unwrap();
+        assert!(s.contains("'easw.easports.com' >> /etc/hosts"));
+        assert!(s.contains("'utas.fut.ea.com' >> /etc/hosts"));
+    }
+
+    #[test]
+    fn rejects_shell_metacharacters_in_config() {
+        assert!(arming_script("10.0.0.1; rm -rf /", 42127, "159.153.51.20", &[]).is_err());
+        assert!(arming_script("10.0.0.1", 42127, "$(evil)", &[]).is_err());
+        assert!(
+            arming_script("10.0.0.1", 42127, "159.153.51.20", &["a b`c`".into()]).is_err(),
+            "a hostname with a backtick is rejected"
+        );
+    }
+
+    #[test]
+    fn arm_requires_server_ea_ip_and_hostname() {
+        let mut c = LauncherConfig::default();
+        assert!(arm(&c).unwrap_err().to_string().contains("server host"));
+        c.openfut_server_host = "10.10.0.120".into();
+        assert!(arm(&c)
+            .unwrap_err()
+            .to_string()
+            .contains("EA redirector IP"));
+        c.ea_redirect_probe_ip = "159.153.51.20".into();
+        assert!(arm(&c).unwrap_err().to_string().contains("EA hostname"));
+    }
+
+    #[test]
+    fn summary_lists_ptrace_dnat_and_each_host() {
+        let s = arming_summary(
+            "10.10.0.120",
+            42127,
+            "159.153.51.20",
+            &["easw.easports.com".into(), "utas.fut.ea.com".into()],
+        );
+        assert!(s.iter().any(|l| l.contains("ptrace_scope = 0")));
+        assert!(s
+            .iter()
+            .any(|l| l.contains("DNAT 159.153.51.20 -> 10.10.0.120:42127")));
+        assert!(s
+            .iter()
+            .any(|l| l == "hosts: easw.easports.com -> 10.10.0.120"));
+        assert!(s
+            .iter()
+            .any(|l| l == "hosts: utas.fut.ea.com -> 10.10.0.120"));
+    }
+}

src/config.rs

@@ -1,4 +1,113 @@
 use serde::{Deserialize, Serialize};
+use std::collections::BTreeMap;
+
+/// One `dosdevices` entry to create inside the Wine prefix before launching.
+/// `link` is relative to the prefix (e.g. `dosdevices/w:`).
+#[derive(Debug, Clone, Default, PartialEq, Eq, Serialize, Deserialize)]
+pub struct PrefixLink {
+    pub link: String,
+    pub target: String,
+}
+
+/// A DRM licence file the game refuses to start without, and the executable
+/// that recreates it. A crashed launch deletes the licence, so this is a
+/// per-launch precondition rather than a one-time setup step.
+#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
+pub struct LicenseCheck {
+    /// Absolute, or relative to the Wine prefix.
+    pub path: String,
+    /// Executable run through the profile's runner to regenerate it.
+    pub generator: String,
+    #[serde(default = "default_license_timeout")]
+    pub timeout_secs: u64,
+}
+
+/// Everything needed to start one game, as data.
+///
+/// This is what keeps the launcher game-independent: FIFA 17's runner, prefix,
+/// executable, `w:` drive and licence id live here in the user's config, never
+/// in launcher code. An unconfigured profile means "fall back to
+/// `game_launch_command`", so upgrading cannot break a working setup.
+#[derive(Debug, Clone, Default, PartialEq, Eq, Serialize, Deserialize)]
+pub struct GameProfile {
+    /// Program that starts the game (e.g. `umu-run`). Empty = profile unused.
+    #[serde(default)]
+    pub runner: String,
+    /// Argument passed to the runner (e.g. `FIFA17.exe`).
+    #[serde(default)]
+    pub executable: String,
+    /// Working directory the runner is started from.
+    #[serde(default)]
+    pub game_dir: String,
+    /// `WINEPREFIX` for the game. Exported automatically when set.
+    #[serde(default)]
+    pub wine_prefix: String,
+    /// Extra environment for the runner (`GAMEID`, `PROTONPATH`, …).
+    #[serde(default)]
+    pub env: BTreeMap<String, String>,
+    #[serde(default)]
+    pub prefix_links: Vec<PrefixLink>,
+    #[serde(default)]
+    pub license: Option<LicenseCheck>,
+}
+
+impl GameProfile {
+    /// Whether this profile is filled in enough to launch from.
+    pub fn configured(&self) -> bool {
+        // Windows starts the executable directly (no runner); unix needs a
+        // runner such as umu-run.
+        #[cfg(windows)]
+        let runner_ok = true;
+        #[cfg(unix)]
+        let runner_ok = !self.runner.trim().is_empty();
+        runner_ok && !self.executable.trim().is_empty() && !self.game_dir.trim().is_empty()
+    }
+
+    /// Reject a half-filled profile rather than launching something surprising.
+    pub fn validate(&self) -> Result<(), String> {
+        #[cfg(unix)]
+        if self.runner.trim().is_empty() {
+            return Err("Game profile has no runner (e.g. umu-run).".into());
+        }
+        if self.executable.trim().is_empty() {
+            return Err("Game profile has no executable.".into());
+        }
+        if self.game_dir.trim().is_empty() {
+            return Err("Game profile has no game directory.".into());
+        }
+        // Wine-prefix links and the DRM licence precondition only exist on the
+        // unix/Proton launch path; native Windows has neither.
+        #[cfg(unix)]
+        {
+            if !self.prefix_links.is_empty() && self.wine_prefix.trim().is_empty() {
+                return Err("Game profile defines prefix links but no wine_prefix.".into());
+            }
+            for l in &self.prefix_links {
+                if l.link.trim().is_empty() || l.target.trim().is_empty() {
+                    return Err(
+                        "Game profile has a prefix link with an empty link or target.".into(),
+                    );
+                }
+                if std::path::Path::new(&l.link).is_absolute() {
+                    return Err(format!(
+                        "Prefix link {:?} must be relative to the Wine prefix.",
+                        l.link
+                    ));
+                }
+            }
+            if let Some(lic) = &self.license {
+                if lic.path.trim().is_empty() || lic.generator.trim().is_empty() {
+                    return Err("Game profile licence needs both a path and a generator.".into());
+                }
+            }
+        }
+        Ok(())
+    }
+}
+
+fn default_license_timeout() -> u64 {
+    60
+}
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct LauncherConfig {
@@ -13,10 +122,87 @@ pub struct LauncherConfig {
     pub bridge_tls_enabled: bool,
     /// Path to the built openfut_hook.dll (Windows DLL for Proton injection).
     pub hook_dll_path: String,
-    /// FIFA 23 game folder inside the Proton prefix (where the DLL is deployed).
+    /// Game folder where the hook DLL (version.dll) is deployed. Empty means
+    /// "not configured" — the hook deploy/check is skipped until the user sets it.
     pub fifa_game_dir: String,
-    /// IP the hook DLL redirects EA hostnames to (written to openfut.cfg).
-    pub hook_redirect_ip: String,
+    /// The OpenFUT server FIFA's EA traffic is redirected to. IPv4 literal or
+    /// hostname. Empty means "not configured" — launching is blocked until set.
+    /// There is intentionally NO loopback default.
+    #[serde(default, alias = "hook_redirect_ip")]
+    pub openfut_server_host: String,
+    /// OpenFUT destination port for intercepted EA :443 (bridge HTTPS).
+    #[serde(default = "default_https_port")]
+    pub openfut_https_port: u16,
+    /// OpenFUT destination port for intercepted EA :10041 (Blaze redirector).
+    #[serde(default = "default_blaze_redirector_port")]
+    pub openfut_blaze_redirector_port: u16,
+    /// OpenFUT destination port for intercepted EA :42127 (Blaze main).
+    #[serde(default = "default_blaze_main_port")]
+    pub openfut_blaze_main_port: u16,
+    /// Plain HTTP UTAS/control-plane port used to select the active account.
+    #[serde(default = "default_account_sync_port")]
+    pub openfut_account_sync_port: u16,
+    /// EA/Origin persona selected for this local single-player profile.
+    #[serde(default)]
+    pub fut_persona_id: u64,
+    #[serde(default)]
+    pub fut_persona_name: String,
+    /// EASFC/POW account-bar state (separate from FUT club coins).
+    #[serde(default = "default_account_level")]
+    pub fut_account_level: u32,
+    #[serde(default)]
+    pub fut_account_experience: u32,
+    #[serde(default = "default_account_experience_max")]
+    pub fut_account_experience_max: u32,
+    #[serde(default)]
+    pub fut_account_funds: u32,
+    #[serde(default = "default_account_funds_cap")]
+    pub fut_account_funds_cap: u32,
+    /// Shell command the launcher runs to start the game. Run via `sh -c`, from
+    /// `game_launch_workdir` if set. Empty means "not configured" — the Launch
+    /// Game button is disabled until the user provides one. This keeps the
+    /// launcher agnostic to Steam vs umu-run vs a custom script.
+    #[serde(default)]
+    pub game_launch_command: String,
+    /// Optional working directory for `game_launch_command`. Empty = inherit.
+    #[serde(default)]
+    pub game_launch_workdir: String,
+    /// Native launch definition. When [`GameProfile::configured`], the launcher
+    /// starts the game itself and `game_launch_command` is not used; the command
+    /// remains as a fallback so an existing setup keeps working after upgrade.
+    #[serde(default)]
+    pub game_profile: GameProfile,
+
+    // ── Pre-launch checks (see `preflight`) ─────────────────────────────────
+    /// EA's hardcoded redirector IP, probed to confirm the client-side DNAT is
+    /// armed. Empty = the check is skipped. A game fact, so it is configuration.
+    #[serde(default)]
+    pub ea_redirect_probe_ip: String,
+    /// Dead EA hostnames that must resolve to `openfut_server_host`.
+    #[serde(default)]
+    pub ea_hostnames: Vec<String>,
+}
+
+fn default_https_port() -> u16 {
+    openfut_common::default_ports::HTTPS
+}
+fn default_blaze_redirector_port() -> u16 {
+    openfut_common::default_ports::BLAZE_REDIRECTOR
+}
+fn default_blaze_main_port() -> u16 {
+    openfut_common::default_ports::BLAZE_MAIN
+}
+fn default_account_sync_port() -> u16 {
+    8099
+}
+fn default_account_level() -> u32 {
+    1
+}
+fn default_account_experience_max() -> u32 {
+    1000
+}
+fn default_account_funds_cap() -> u32 {
+    100_000
 }
 
 impl Default for LauncherConfig {
@@ -52,12 +238,30 @@ impl Default for LauncherConfig {
                 .unwrap_or_default()
                 .to_string_lossy()
                 .into(),
-            fifa_game_dir: dirs::home_dir()
-                .map(|h| h.join(".steam/steam/steamapps/common/FIFA 23"))
-                .unwrap_or_default()
-                .to_string_lossy()
-                .into(),
-            hook_redirect_ip: "127.0.0.1".into(),
+            // Empty by default, like the server host and game profile: the
+            // launcher never invents a path to somebody's game install.
+            fifa_game_dir: String::new(),
+            // No server configured by default — the user MUST enter one. There
+            // is deliberately no loopback/localhost default.
+            openfut_server_host: String::new(),
+            openfut_https_port: default_https_port(),
+            openfut_blaze_redirector_port: default_blaze_redirector_port(),
+            openfut_blaze_main_port: default_blaze_main_port(),
+            openfut_account_sync_port: default_account_sync_port(),
+            fut_persona_id: 0,
+            fut_persona_name: String::new(),
+            fut_account_level: default_account_level(),
+            fut_account_experience: 0,
+            fut_account_experience_max: default_account_experience_max(),
+            fut_account_funds: 0,
+            fut_account_funds_cap: default_account_funds_cap(),
+            game_launch_command: String::new(),
+            game_launch_workdir: String::new(),
+            // Empty by default, exactly like the server host: the launcher must
+            // never invent a path to somebody's game install.
+            game_profile: GameProfile::default(),
+            ea_redirect_probe_ip: String::new(),
+            ea_hostnames: Vec::new(),
         }
     }
 }
@@ -88,22 +292,394 @@ impl LauncherConfig {
         }
     }
 
-    pub fn core_env(&self) -> Vec<(String, String)> {
-        vec![
-            ("DATABASE_URL".into(), self.core_database_url.clone()),
-            ("DATA_DIR".into(), self.core_data_dir.clone()),
-            ("LISTEN_ADDR".into(), self.core_listen_addr.clone()),
-            ("RUST_LOG".into(), "openfut_core=info,tower_http=info".into()),
-        ]
+    /// The (host, port) the health monitor should poll, or None when no server
+    /// is configured. Uses the bridge HTTPS port — the port the FIFA client
+    /// actually connects to — so "reachable" means what the game will see.
+    pub fn health_target(&self) -> Option<(String, u16)> {
+        let host = self.openfut_server_host.trim();
+        if host.is_empty() {
+            None
+        } else {
+            Some((host.to_string(), self.openfut_https_port))
+        }
     }
 
-    pub fn bridge_env(&self) -> Vec<(String, String)> {
-        vec![
-            ("CORE_URL".into(), self.bridge_core_url.clone()),
-            ("LISTEN_ADDR".into(), self.bridge_listen_addr.clone()),
-            ("CAPTURES_DIR".into(), self.bridge_captures_dir.clone()),
-            ("TLS_ENABLED".into(), self.bridge_tls_enabled.to_string()),
-            ("RUST_LOG".into(), "openfut_bridge=info".into()),
-        ]
+    /// The config the account monitor should poll with, or None when no server
+    /// is configured. Returns a clone so the background thread owns its own
+    /// snapshot and never races the UI's live config.
+    pub fn account_target(&self) -> Option<LauncherConfig> {
+        if self.openfut_server_host.trim().is_empty() {
+            None
+        } else {
+            Some(self.clone())
+        }
+    }
+
+    /// Build the shared [`ServerConfig`] from the launcher's configured server
+    /// host + destination ports. This is the single place the launcher turns UI
+    /// fields into the canonical config consumed by the hook.
+    pub fn server_config(&self) -> openfut_common::ServerConfig {
+        openfut_common::ServerConfig {
+            host: self.openfut_server_host.trim().to_string(),
+            ports: openfut_common::OpenFutPorts {
+                https: self.openfut_https_port,
+                blaze_redirector: self.openfut_blaze_redirector_port,
+                blaze_main: self.openfut_blaze_main_port,
+            },
+        }
+    }
+
+    /// Validate the configured server (syntax only, no DNS). Returns the same
+    /// user-facing message the task specifies when nothing is configured.
+    pub fn validate_server(&self) -> Result<(), String> {
+        if self.openfut_server_host.trim().is_empty() {
+            return Err("No OpenFUT server configured. Please enter the hostname \
+                        or IP address of your OpenFUT server."
+                .to_string());
+        }
+        self.server_config().validate().map_err(|e| e.to_string())
+    }
+
+    /// Validate every configuration value required by the one-button FIFA 17
+    /// launch path. Runtime state such as hook deployment is checked by the UI.
+    pub fn validate_launch_config(&self) -> Result<(), String> {
+        self.validate_server()?;
+        self.validate_account()?;
+        // Either launch route is acceptable, but a half-filled profile is not:
+        // silently falling back to the shell command would hide the mistake, so
+        // ANY profile that has been touched must be complete.
+        if self.game_profile != GameProfile::default() {
+            self.game_profile.validate()?;
+        } else if self.game_launch_command.trim().is_empty() {
+            return Err(
+                "No game configured. Fill in the game profile, or set a launch command, \
+                 in Settings."
+                    .into(),
+            );
+        }
+        Ok(())
+    }
+
+    pub fn validate_account(&self) -> Result<(), String> {
+        if self.fut_persona_id == 0 {
+            return Err("No account yet. Create one from the Get started tab.".into());
+        }
+        if self.fut_persona_name.trim().is_empty() {
+            return Err("Account has no persona name. Recreate it from Get started.".into());
+        }
+        if self.fut_account_level == 0 {
+            return Err("EA account level must be at least 1.".into());
+        }
+        if self.fut_account_experience_max == 0
+            || self.fut_account_experience > self.fut_account_experience_max
+        {
+            return Err("EA account XP must not exceed a nonzero XP maximum.".into());
+        }
+        if self.fut_account_funds > self.fut_account_funds_cap {
+            return Err("EA account funds must not exceed the funds cap.".into());
+        }
+        Ok(())
+    }
+
+    /// Whether an account has been claimed from the server (see
+    /// [`crate::account_sync::discover`]). Distinct from
+    /// [`Self::validate_account`], which also polices the derived EASFC values:
+    /// this answers only "does this install know who is playing?".
+    pub fn account_configured(&self) -> bool {
+        self.fut_persona_id != 0 && !self.fut_persona_name.trim().is_empty()
+    }
+
+    /// Whether the launcher should open on the guided first-run flow instead of
+    /// the dashboard. Keyed on the two things a new user cannot be expected to
+    /// guess: where the server is, and who they are.
+    pub fn needs_onboarding(&self) -> bool {
+        self.validate_server().is_err() || !self.account_configured()
+    }
+
+    /// The exact `openfut.cfg` bytes to write for the hook, or an error if the
+    /// server isn't validly configured (never emits a loopback fallback).
+    ///
+    /// The deployed FIFA 17 hook reads this structured format through the same
+    /// shared parser, so changing a destination port never requires recompiling
+    /// the DLL. Fixed EA source ports remain protocol signatures in the hook.
+    pub fn hook_cfg_contents(&self) -> Result<String, String> {
+        self.validate_server()?;
+        Ok(self.server_config().to_cfg_string())
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn default_has_no_server_and_blocks_launch() {
+        let c = LauncherConfig::default();
+        assert!(c.openfut_server_host.is_empty());
+        let err = c.validate_server().unwrap_err();
+        assert!(err.contains("No OpenFUT server configured"));
+        assert!(c.hook_cfg_contents().is_err());
+    }
+
+    #[test]
+    fn configured_server_roundtrips_into_hook_cfg() {
+        let c = LauncherConfig {
+            openfut_server_host: "192.168.1.50".into(),
+            openfut_https_port: 9443,
+            openfut_blaze_redirector_port: 43127,
+            openfut_blaze_main_port: 43130,
+            ..LauncherConfig::default()
+        };
+        let cfg = c
+            .hook_cfg_contents()
+            .expect("valid server should produce cfg");
+        let parsed = openfut_common::ServerConfig::parse(&cfg).unwrap();
+        assert_eq!(parsed.host, "192.168.1.50");
+        assert_eq!(parsed.ports, c.server_config().ports);
+    }
+
+    #[test]
+    fn changing_server_changes_hook_cfg_no_rebuild() {
+        // Models the Server A -> Server B acceptance test at the config layer:
+        // only the value changes; the same code path produces the new cfg.
+        let mut c = LauncherConfig {
+            openfut_server_host: "10.0.0.1".into(),
+            ..LauncherConfig::default()
+        };
+        let a = c.hook_cfg_contents().unwrap();
+        c.openfut_server_host = "10.0.0.2".into();
+        let b = c.hook_cfg_contents().unwrap();
+        assert_ne!(a, b);
+        assert_eq!(
+            openfut_common::ServerConfig::parse(&b).unwrap().host,
+            "10.0.0.2"
+        );
+    }
+
+    #[test]
+    fn health_target_none_until_configured() {
+        let mut c = LauncherConfig::default();
+        assert!(c.health_target().is_none());
+        c.openfut_server_host = "10.10.0.120".into();
+        let (host, port) = c.health_target().expect("configured host yields a target");
+        assert_eq!(host, "10.10.0.120");
+        assert_eq!(port, c.openfut_https_port);
+    }
+
+    #[test]
+    fn legacy_hook_redirect_ip_field_is_read() {
+        // Old configs stored the address under `hook_redirect_ip`; serde alias
+        // must map it onto the new field so upgrades keep working.
+        let json = r#"{
+            "core_binary":"","bridge_binary":"","core_database_url":"",
+            "core_data_dir":"","core_listen_addr":"","bridge_listen_addr":"",
+            "bridge_captures_dir":"","bridge_core_url":"","bridge_tls_enabled":true,
+            "hook_dll_path":"","fifa_game_dir":"","hook_redirect_ip":"192.168.5.5"
+        }"#;
+        let c: LauncherConfig = serde_json::from_str(json).unwrap();
+        assert_eq!(c.openfut_server_host, "192.168.5.5");
+    }
+
+    #[test]
+    fn launch_config_requires_server_account_and_command() {
+        let mut c = LauncherConfig::default();
+        assert!(c.validate_launch_config().is_err());
+
+        c.openfut_server_host = "10.10.0.120".into();
+        c.fut_persona_id = 12345678;
+        c.fut_persona_name = "TEST_USER".into();
+        assert!(c
+            .validate_launch_config()
+            .unwrap_err()
+            .contains("launch command"));
+
+        c.game_launch_command = "/home/alex/Desktop/launch-fifa17.sh".into();
+        assert!(c.validate_launch_config().is_ok());
+    }
+
+    /// An old config.json has no `game_profile` key at all. It must keep
+    /// launching exactly as before rather than failing to parse or silently
+    /// switching route.
+    #[test]
+    fn a_config_without_a_game_profile_still_uses_the_shell_command() {
+        let json = r#"{
+            "core_binary":"","bridge_binary":"","core_database_url":"",
+            "core_data_dir":"","core_listen_addr":"","bridge_listen_addr":"",
+            "bridge_captures_dir":"","bridge_core_url":"","bridge_tls_enabled":true,
+            "hook_dll_path":"","fifa_game_dir":"","openfut_server_host":"10.0.0.1",
+            "game_launch_command":"/home/u/launch.sh"
+        }"#;
+        let c: LauncherConfig = serde_json::from_str(json).unwrap();
+        assert!(!c.game_profile.configured());
+        assert_eq!(c.game_profile, GameProfile::default());
+        assert!(c.ea_hostnames.is_empty());
+    }
+
+    #[test]
+    fn a_configured_profile_satisfies_launch_without_a_shell_command() {
+        let mut c = LauncherConfig {
+            openfut_server_host: "10.10.0.120".into(),
+            fut_persona_id: 1,
+            fut_persona_name: "X".into(),
+            ..LauncherConfig::default()
+        };
+        c.game_launch_command.clear();
+        assert!(
+            c.validate_launch_config().is_err(),
+            "neither route configured"
+        );
+
+        c.game_profile = GameProfile {
+            runner: "umu-run".into(),
+            executable: "FIFA17.exe".into(),
+            game_dir: "/mnt/games/FIFA 17".into(),
+            ..GameProfile::default()
+        };
+        assert!(c.game_profile.configured());
+        assert!(c.validate_launch_config().is_ok());
+    }
+
+    /// The trap this guards: a profile filled in halfway would fail
+    /// `configured()` and quietly fall through to the shell command, so the user
+    /// edits the profile and nothing they change has any effect.
+    #[test]
+    fn a_half_filled_profile_is_an_error_not_a_silent_fallback() {
+        let mut c = LauncherConfig {
+            openfut_server_host: "10.10.0.120".into(),
+            fut_persona_id: 1,
+            fut_persona_name: "X".into(),
+            game_launch_command: "/home/u/launch.sh".into(),
+            ..LauncherConfig::default()
+        };
+        c.game_profile.runner = "umu-run".into(); // and nothing else
+        let err = c.validate_launch_config().unwrap_err();
+        assert!(err.contains("executable"), "{err}");
+    }
+
+    /// The exact profile block deployed to the FIFA 17 machine.
+    ///
+    /// `load()` swallows a parse error and returns `Default` — so a config this
+    /// binary cannot read would not produce an error, it would silently discard
+    /// the user's persona, server and ports. That makes "the shipped config
+    /// actually deserializes" a property worth asserting, not assuming.
+    #[test]
+    fn the_deployed_fifa17_profile_parses_exactly() {
+        let json = r#"{
+          "core_binary":"","bridge_binary":"","core_database_url":"",
+          "core_data_dir":"","core_listen_addr":"","bridge_listen_addr":"",
+          "bridge_captures_dir":"","bridge_core_url":"","bridge_tls_enabled":true,
+          "hook_dll_path":"","fifa_game_dir":"",
+          "openfut_server_host":"10.10.0.120",
+          "ea_hostnames":["easw.easports.com"],
+          "ea_redirect_probe_ip":"159.153.51.20",
+          "game_profile":{
+            "env":{"GAMEID":"fifa17","PROTONPATH":"UMU-Proton-10.0-4","STEAM_COMPAT_CONFIG":"sdlinput"},
+            "executable":"FIFA17.exe",
+            "game_dir":"/mnt/games/FIFA 17",
+            "license":{
+              "generator":"_fifa17.exe",
+              "path":"drive_c/ProgramData/Electronic Arts/EA Services/License/1027460.dlf",
+              "timeout_secs":60
+            },
+            "prefix_links":[{"link":"dosdevices/w:","target":"/mnt"}],
+            "runner":"umu-run",
+            "wine_prefix":"/home/alex/Games/umu/fifa17"
+          }
+        }"#;
+        let c: LauncherConfig = serde_json::from_str(json).expect("deployed config must parse");
+        let p = &c.game_profile;
+        assert!(p.configured());
+        assert!(p.validate().is_ok());
+        assert_eq!(p.runner, "umu-run");
+        assert_eq!(
+            p.env.get("STEAM_COMPAT_CONFIG").map(String::as_str),
+            Some("sdlinput")
+        );
+        assert_eq!(p.prefix_links.len(), 1);
+        let lic = p.license.as_ref().expect("licence block");
+        assert_eq!(lic.timeout_secs, 60);
+        assert!(lic.path.ends_with("1027460.dlf"));
+        assert_eq!(c.ea_redirect_probe_ip, "159.153.51.20");
+    }
+
+    /// `configured()` alone decides which launch route runs, so it is pinned
+    /// directly rather than only through `validate_launch_config`. All three
+    /// fields are required: a profile missing any of them cannot start a game.
+    #[test]
+    fn configured_requires_runner_executable_and_dir() {
+        let mut p = GameProfile::default();
+        assert!(!p.configured());
+        p.runner = "umu-run".into();
+        assert!(!p.configured(), "runner alone is not launchable");
+        p.executable = "G.exe".into();
+        assert!(!p.configured(), "no game_dir is not launchable");
+        p.game_dir = "/games/G".into();
+        assert!(p.configured());
+        // Whitespace is not configuration.
+        p.executable = "   ".into();
+        assert!(!p.configured());
+    }
+
+    #[test]
+    fn prefix_links_must_be_relative_and_have_a_prefix() {
+        let mut p = GameProfile {
+            runner: "umu-run".into(),
+            executable: "G.exe".into(),
+            game_dir: "/games/G".into(),
+            prefix_links: vec![PrefixLink {
+                link: "dosdevices/w:".into(),
+                target: "/mnt".into(),
+            }],
+            ..GameProfile::default()
+        };
+        assert!(
+            p.validate().unwrap_err().contains("wine_prefix"),
+            "links without a prefix have nowhere to go"
+        );
+
+        p.wine_prefix = "/prefix".into();
+        assert!(p.validate().is_ok());
+
+        // An absolute link would be created outside the prefix entirely.
+        p.prefix_links[0].link = "/etc/w:".into();
+        assert!(p.validate().unwrap_err().contains("relative"));
+    }
+
+    #[test]
+    fn launch_requires_a_valid_ea_account() {
+        let mut c = LauncherConfig::default();
+        // A fresh install has no account, and must say so rather than launching
+        // FIFA as persona 0.
+        assert!(!c.account_configured());
+        assert!(c.validate_account().is_err());
+        c.fut_persona_id = 12345678;
+        assert!(
+            !c.account_configured(),
+            "an id without a name is not an account"
+        );
+        assert!(c.validate_account().unwrap_err().contains("persona name"));
+        c.fut_persona_name = "TEST_USER".into();
+        assert!(c.account_configured());
+        assert!(c.validate_account().is_ok());
+        c.fut_account_experience = 1001;
+        assert!(c.validate_account().unwrap_err().contains("XP"));
+    }
+
+    #[test]
+    fn onboarding_is_needed_until_both_server_and_account_are_known() {
+        // Drives which tab the launcher opens on, so the two halves must both
+        // count: a server with no account is still a dead end for a new user.
+        let mut c = LauncherConfig::default();
+        assert!(c.needs_onboarding());
+        c.openfut_server_host = "10.10.0.120".into();
+        assert!(
+            c.needs_onboarding(),
+            "a server alone cannot launch anything"
+        );
+        c.fut_persona_id = 33_068_179;
+        c.fut_persona_name = "CAGE".into();
+        assert!(!c.needs_onboarding());
+        c.openfut_server_host.clear();
+        assert!(c.needs_onboarding(), "losing the server reopens the flow");
     }
 }

src/fifa17_capability.rs

@@ -0,0 +1,224 @@
+//! FIFA 17 verified patched-client capability negotiation (launcher side).
+//!
+//! The FIFA 17 backend suppresses its synthetic empty-My-Packs sentinel (pack id
+//! 65534) only when the *current* FIFA process has positively verified the
+//! CardsDLL resolver guard. autopatch proves that at runtime and advertises it on
+//! its stdout; the launcher parses that line, records the capability for the live
+//! FIFA process, and registers it with the backend over the same tiny stdlib-HTTP
+//! transport used by [`crate::account_sync`]. See
+//! `docs/plans/FIFA17_PATCHED_CLIENT_CAPABILITY.md`.
+//!
+//! Everything here is fail-closed: a line we cannot parse, or a registration POST
+//! that fails, simply leaves the backend on its default active-sentinel path.
+
+use serde::Serialize;
+use std::io::{Read, Write};
+use std::net::{TcpStream, ToSocketAddrs};
+use std::time::Duration;
+
+const CAPABILITY_NAME: &str = "empty_mypacks_resolver";
+const CAPABILITY_PATH: &str = "/openfut/fifa17/capability";
+const TIMEOUT: Duration = Duration::from_secs(3);
+
+/// Capabilities verified for the *current* FIFA process. Starts UNKNOWN at each
+/// launch and is discarded when that FIFA process ends — it is never persisted,
+/// so a previous launch's capability can never leak into a later one.
+#[derive(Debug, Clone, Default)]
+pub struct Fifa17ClientCapabilities {
+    /// `Some(version)` once autopatch has verified the resolver guard for the
+    /// live FIFA process; `None` while unknown / unverified.
+    pub empty_mypacks_resolver: Option<u32>,
+}
+
+#[derive(Debug, Serialize)]
+#[serde(rename_all = "camelCase")]
+struct CapabilityRegistration<'a> {
+    capability: &'a str,
+    version: u32,
+    persona_id: u64,
+    fifa_pid: u64,
+}
+
+/// Pure parser for an autopatch stdout line. Returns `Some(version)` iff the raw
+/// line advertises the capability — it must contain both `verified capability`
+/// and `fifa17.empty_mypacks_resolver=<N>` (with `<N>` a `u32`). Non-advertising
+/// lines (e.g. `guard status=UNSUPPORTED_BUILD …`) and unrelated log output
+/// return `None`. Robust to a trailing ` fifa_pid=<pid>`.
+pub fn parse_capability_line(line: &str) -> Option<u32> {
+    if !line.contains("verified capability") {
+        return None;
+    }
+    parse_u32_after(line, "fifa17.empty_mypacks_resolver=")
+}
+
+/// Extract the FIFA pid from a `fifa_pid=<n>` token if present.
+pub fn parse_fifa_pid(line: &str) -> Option<u64> {
+    let digits = digits_after(line, "fifa_pid=")?;
+    digits.parse::<u64>().ok()
+}
+
+fn parse_u32_after(line: &str, marker: &str) -> Option<u32> {
+    digits_after(line, marker)?.parse::<u32>().ok()
+}
+
+fn digits_after<'a>(line: &'a str, marker: &str) -> Option<&'a str> {
+    let start = line.find(marker)? + marker.len();
+    let rest = &line[start..];
+    let end = rest
+        .find(|c: char| !c.is_ascii_digit())
+        .unwrap_or(rest.len());
+    if end == 0 {
+        None
+    } else {
+        Some(&rest[..end])
+    }
+}
+
+/// Register the verified capability with the backend via `POST
+/// /openfut/fifa17/capability`. Modeled exactly on [`crate::account_sync::sync`]:
+/// a tiny stdlib `TcpStream` client, `Connection: close`, 3s timeouts, status
+/// line parsed, and any non-2xx (or connect/IO error) returned as `Err`. The
+/// caller logs the outcome; a failure is fail-closed — the backend records
+/// nothing and keeps the sentinel.
+pub fn register(
+    host: &str,
+    port: u16,
+    persona_id: u64,
+    fifa_pid: u64,
+    version: u32,
+) -> Result<(), String> {
+    let host = host.trim();
+    let address = (host, port)
+        .to_socket_addrs()
+        .map_err(|error| format!("cannot resolve capability server {host}:{port}: {error}"))?
+        .next()
+        .ok_or_else(|| format!("capability server {host}:{port} resolved to no addresses"))?;
+    let mut stream = TcpStream::connect_timeout(&address, TIMEOUT)
+        .map_err(|error| format!("cannot connect to capability server {host}:{port}: {error}"))?;
+    stream
+        .set_read_timeout(Some(TIMEOUT))
+        .map_err(|error| format!("cannot set capability timeout: {error}"))?;
+    stream
+        .set_write_timeout(Some(TIMEOUT))
+        .map_err(|error| format!("cannot set capability timeout: {error}"))?;
+
+    let payload = serde_json::to_vec(&CapabilityRegistration {
+        capability: CAPABILITY_NAME,
+        version,
+        persona_id,
+        fifa_pid,
+    })
+    .map_err(|error| format!("cannot encode capability request: {error}"))?;
+
+    let request = format!(
+        "POST {CAPABILITY_PATH} HTTP/1.1\r\nHost: {host}:{port}\r\nContent-Type: application/json\r\nContent-Length: {}\r\nConnection: close\r\n\r\n",
+        payload.len()
+    );
+    stream
+        .write_all(request.as_bytes())
+        .and_then(|()| stream.write_all(&payload))
+        .map_err(|error| format!("cannot send capability request: {error}"))?;
+
+    let mut response = Vec::new();
+    stream
+        .read_to_end(&mut response)
+        .map_err(|error| format!("cannot read capability response: {error}"))?;
+    let separator = response
+        .windows(4)
+        .position(|window| window == b"\r\n\r\n")
+        .ok_or_else(|| "capability server returned a malformed HTTP response".to_string())?;
+    let headers = std::str::from_utf8(&response[..separator])
+        .map_err(|_| "capability server returned non-UTF-8 headers".to_string())?;
+    let status = headers
+        .lines()
+        .next()
+        .and_then(|line| line.split_whitespace().nth(1))
+        .and_then(|value| value.parse::<u16>().ok())
+        .ok_or_else(|| "capability server returned a malformed status line".to_string())?;
+    if !(200..300).contains(&status) {
+        let detail = String::from_utf8_lossy(&response[separator + 4..]);
+        return Err(format!(
+            "capability server rejected registration (HTTP {status}): {detail}"
+        ));
+    }
+    Ok(())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use std::net::TcpListener;
+    use std::thread;
+
+    #[test]
+    fn parses_the_verified_capability_line() {
+        let line =
+            "[store-guard] verified capability fifa17.empty_mypacks_resolver=1 fifa_pid=4242";
+        assert_eq!(parse_capability_line(line), Some(1));
+        assert_eq!(parse_fifa_pid(line), Some(4242));
+    }
+
+    #[test]
+    fn non_advertising_status_line_yields_none() {
+        let line =
+            "[store-guard] guard status=UNSUPPORTED_BUILD fifa_pid=4242 (no capability advertised)";
+        assert_eq!(parse_capability_line(line), None);
+    }
+
+    #[test]
+    fn unrelated_log_line_yields_none() {
+        let line = "[autopatch] patched /proc/4242/mem at rva 0x14858";
+        assert_eq!(parse_capability_line(line), None);
+    }
+
+    #[test]
+    fn version_gating_is_left_to_the_backend() {
+        let line = "[store-guard] verified capability fifa17.empty_mypacks_resolver=2 fifa_pid=7";
+        assert_eq!(parse_capability_line(line), Some(2));
+    }
+
+    #[test]
+    fn register_posts_capability_to_the_backend() {
+        let listener = TcpListener::bind("127.0.0.1:0").unwrap();
+        let port = listener.local_addr().unwrap().port();
+        let server = thread::spawn(move || {
+            let (mut socket, _) = listener.accept().unwrap();
+            let mut request = Vec::new();
+            loop {
+                let mut chunk = [0; 1024];
+                let count = socket.read(&mut chunk).unwrap();
+                assert!(count > 0);
+                request.extend_from_slice(&chunk[..count]);
+                if let Some(separator) = request.windows(4).position(|w| w == b"\r\n\r\n") {
+                    let headers = String::from_utf8_lossy(&request[..separator]);
+                    let length = headers
+                        .lines()
+                        .find_map(|line| line.strip_prefix("Content-Length: "))
+                        .unwrap()
+                        .parse::<usize>()
+                        .unwrap();
+                    if request.len() >= separator + 4 + length {
+                        break;
+                    }
+                }
+            }
+            let request = String::from_utf8_lossy(&request);
+            assert!(request.starts_with("POST /openfut/fifa17/capability HTTP/1.1"));
+            assert!(request.contains("\"capability\":\"empty_mypacks_resolver\""));
+            assert!(request.contains("\"version\":1"));
+            assert!(request.contains("\"personaId\":12345678"));
+            assert!(request.contains("\"fifaPid\":4242"));
+            let body = r#"{"status":"OK"}"#;
+            write!(
+                socket,
+                "HTTP/1.1 200 OK\r\nContent-Type: application/json\r\nContent-Length: {}\r\nConnection: close\r\n\r\n{}",
+                body.len(),
+                body
+            )
+            .unwrap();
+        });
+
+        register("127.0.0.1", port, 12345678, 4242, 1).unwrap();
+        server.join().unwrap();
+    }
+}

src/game_launch.rs

@@ -0,0 +1,684 @@
+//! Launch the game directly, without an external shell script.
+//!
+//! # Why this exists
+//!
+//! The launcher used to shell out to a user-written script (`game_launch_command`)
+//! that set the Proton environment, prepared the Wine prefix, regenerated the
+//! DRM licence and finally ran the game. That script lived on the user's Desktop
+//! — and on 2026-08-11 it was moved to the Trash, after which every launch failed
+//! with `sh: No such file or directory`. Three unrelated client-side faults that
+//! morning each looked like "the game crashed"; none of them were.
+//!
+//! Everything the script did is mechanical and belongs inside the launcher, where
+//! it cannot be deleted, is covered by tests, and reports failures into the same
+//! log buffer as the rest of the launch.
+//!
+//! # What stays out of this file
+//!
+//! Every FIFA-17 fact — the runner, the executable, the prefix path, the `w:`
+//! drive symlink, the licence file id — is [`GameProfile`] *data*, not code.
+//! OpenFUT is not a FIFA 17 project; FIFA 17 is its first reference target. A
+//! second game must be a different profile, never a second branch in here.
+//!
+//! `game_launch_command` remains as an escape hatch: an unconfigured profile
+//! falls back to it, so an existing working setup cannot be broken by upgrading.
+
+use parking_lot::Mutex;
+#[cfg(unix)]
+use std::collections::BTreeMap;
+use std::io::{BufRead, BufReader};
+use std::path::{Path, PathBuf};
+use std::process::{Child, Command, Stdio};
+use std::sync::Arc;
+#[cfg(unix)]
+use std::time::{Duration, Instant};
+
+use crate::config::GameProfile;
+use crate::logs::LogBuffer;
+
+type Log = Arc<Mutex<LogBuffer>>;
+
+fn say(log: &Log, msg: impl Into<String>) {
+    log.lock().push(msg.into());
+}
+
+/// Prepare the prefix, satisfy the licence precondition, and start the game.
+///
+/// Returns once the game process has been spawned; its output continues to
+/// stream into `log` on background threads. `on_exit` fires when the process
+/// ends, which is how the launch state machine leaves its Running state.
+#[cfg(unix)]
+pub fn launch(
+    profile: &GameProfile,
+    log: &Log,
+    on_exit: impl FnOnce() + Send + 'static,
+) -> anyhow::Result<()> {
+    profile.validate().map_err(anyhow::Error::msg)?;
+
+    let game_dir = PathBuf::from(&profile.game_dir);
+    if !game_dir.is_dir() {
+        anyhow::bail!("game_dir does not exist: {}", game_dir.display());
+    }
+
+    prepare_prefix(profile, log)?;
+    ensure_dll_override(profile, log);
+    ensure_license(profile, log)?;
+
+    let mut cmd = Command::new(&profile.runner);
+    cmd.arg(&profile.executable)
+        .current_dir(&game_dir)
+        .stdout(Stdio::piped())
+        .stderr(Stdio::piped());
+    for (k, v) in &profile.env {
+        cmd.env(k, v);
+    }
+    cmd.env("WINEDLLOVERRIDES", hook_dll_overrides(&profile.env));
+    if !profile.wine_prefix.trim().is_empty() {
+        cmd.env("WINEPREFIX", &profile.wine_prefix);
+    }
+
+    say(
+        log,
+        format!(
+            "[launcher] launching {} {} (cwd {})",
+            profile.runner,
+            profile.executable,
+            game_dir.display()
+        ),
+    );
+
+    let child = cmd
+        .spawn()
+        .map_err(|e| anyhow::anyhow!("could not start {}: {e}", profile.runner))?;
+    stream(
+        child,
+        log.clone(),
+        "[launcher] game process exited.",
+        on_exit,
+    );
+    Ok(())
+}
+
+/// Windows-native launch: no Wine prefix, no `WINEDLLOVERRIDES` (the game loads
+/// the `version.dll` hook from its own directory through the normal search
+/// order), and no licence regeneration (the native loader handles DRM).
+/// Routing is the `openfut.cfg` that the client-files step already wrote into
+/// the game directory.
+///
+/// The launcher must itself be running elevated (its shortcut carries the
+/// RunAsAdmin bit): the loader requires administrator rights, and a child
+/// started with `CreateProcess` inherits the launcher's token instead of
+/// raising its own UAC prompt.
+#[cfg(windows)]
+pub fn launch(
+    profile: &GameProfile,
+    log: &Log,
+    on_exit: impl FnOnce() + Send + 'static,
+) -> anyhow::Result<()> {
+    profile.validate().map_err(anyhow::Error::msg)?;
+
+    let game_dir = PathBuf::from(&profile.game_dir);
+    if !game_dir.is_dir() {
+        anyhow::bail!("game_dir does not exist: {}", game_dir.display());
+    }
+    let exe = game_dir.join(&profile.executable);
+    if !exe.is_file() {
+        anyhow::bail!("game executable not found: {}", exe.display());
+    }
+
+    let mut cmd = Command::new(&exe);
+    cmd.current_dir(&game_dir)
+        .stdout(Stdio::piped())
+        .stderr(Stdio::piped());
+    for (k, v) in &profile.env {
+        cmd.env(k, v);
+    }
+
+    say(
+        log,
+        format!(
+            "[launcher] launching {} (cwd {})",
+            exe.display(),
+            game_dir.display()
+        ),
+    );
+
+    let child = cmd
+        .spawn()
+        .map_err(|e| anyhow::anyhow!("could not start {}: {e}", exe.display()))?;
+    stream(
+        child,
+        log.clone(),
+        "[launcher] game process exited.",
+        on_exit,
+    );
+    Ok(())
+}
+
+/// The registry key Wine reads DLL overrides from, and the one value the hook needs.
+///
+/// Wine loads its own builtin `version.dll` unless an override says otherwise, so the
+/// game-directory proxy is ignored by default. `WINEDLLOVERRIDES` fixes that only for
+/// a process we spawn ourselves — it cannot help a player who presses Play in Steam,
+/// which is why the old advice was to paste launch options by hand (see
+/// `setup::STEAM_LAUNCH_OPTIONS`). Asking a player to edit launch options is exactly
+/// the kind of step that makes this unusable for anyone who does not already know what
+/// a DLL override is.
+///
+/// Persisting the override in the prefix registry removes the manual step entirely: it
+/// survives restarts and applies to every launch path, including Steam. This mirrors
+/// what BepInEx documents for Proton (configure the proxy in winecfg rather than the
+/// environment) and what Proton itself already does in this prefix for other titles.
+#[cfg(unix)]
+const DLL_OVERRIDE_KEY: &str = r"HKCU\Software\Wine\DllOverrides";
+#[cfg(unix)]
+const HOOK_DLL_VALUE: &str = "version";
+#[cfg(unix)]
+const HOOK_DLL_OVERRIDE: &str = "native,builtin";
+
+/// `reg add` argv that persists the hook's DLL override, native-first with a builtin
+/// fallback. `/f` makes it idempotent, so this is safe to run on every launch and
+/// repairs a prefix a player has reset or replaced.
+#[cfg(unix)]
+fn dll_override_args() -> [&'static str; 10] {
+    [
+        "reg",
+        "add",
+        DLL_OVERRIDE_KEY,
+        "/v",
+        HOOK_DLL_VALUE,
+        "/t",
+        "REG_SZ",
+        "/d",
+        HOOK_DLL_OVERRIDE,
+        "/f",
+    ]
+}
+
+/// Persist the hook's DLL override into the prefix, so the game loads the proxy no
+/// matter how it is started.
+///
+/// Best-effort by design: a failure here is not fatal, because a launch we spawn also
+/// carries `WINEDLLOVERRIDES`. It is reported in plain language rather than as a Wine
+/// error, since the player cannot act on the latter.
+#[cfg(unix)]
+fn ensure_dll_override(profile: &GameProfile, log: &Log) {
+    if profile.wine_prefix.trim().is_empty() {
+        return;
+    }
+    let mut cmd = Command::new(&profile.runner);
+    cmd.args(dll_override_args())
+        .current_dir(&profile.game_dir)
+        .stdout(Stdio::null())
+        .stderr(Stdio::null());
+    for (k, v) in &profile.env {
+        cmd.env(k, v);
+    }
+    cmd.env("WINEPREFIX", &profile.wine_prefix);
+    match cmd.status() {
+        Ok(status) if status.success() => {
+            say(log, "[launcher] game files ready (mod support enabled)");
+        }
+        Ok(_) | Err(_) => say(
+            log,
+            "[launcher] could not pre-enable mod support in the game prefix; \
+             launching anyway (this launch still enables it directly)",
+        ),
+    }
+}
+
+#[cfg(all(test, unix))]
+mod override_tests {
+    use super::*;
+
+    #[test]
+    fn dll_override_is_persisted_native_first_and_idempotently() {
+        let args = dll_override_args();
+        assert_eq!(args[0], "reg");
+        assert_eq!(args[1], "add");
+        assert_eq!(
+            args[2], r"HKCU\Software\Wine\DllOverrides",
+            "Wine reads overrides from this key; a typo silently leaves the hook unloaded"
+        );
+        assert_eq!(args[4], "version", "the hook ships as a version.dll proxy");
+        assert_eq!(
+            args[8], "native,builtin",
+            "native first so the proxy wins, builtin as fallback so a missing proxy \
+             cannot make the game unlaunchable"
+        );
+        assert_eq!(
+            args[9], "/f",
+            "idempotent, so running it on every launch repairs a reset prefix"
+        );
+    }
+}
+
+/// The `WINEDLLOVERRIDES` value the game must be started with.
+///
+/// The hook ships as a `version.dll` proxy inside the game directory, and Proton
+/// prefers a local DLL over its own builtin ONLY when `WINEDLLOVERRIDES` names it
+/// (see `setup::STEAM_LAUNCH_OPTIONS`). Steam users get that from their launch
+/// options; when the launcher spawns the runner itself, nothing else supplies it.
+///
+/// Without it the failure is silent and badly misleading: the hook never loads, so
+/// the `openfut.cfg` the launcher just wrote is inert, the game ignores the
+/// configured Blaze ports, and `/etc/hosts` quietly routes it to whatever answers
+/// on EA's real ports. It looks like a working launch against the configured
+/// server while actually talking to a different one.
+///
+/// A profile that already pins `version=` wins: an operator overriding the hijack
+/// deliberately must not be silently overruled.
+#[cfg(unix)]
+fn hook_dll_overrides(env: &BTreeMap<String, String>) -> String {
+    const HOOK: &str = "version=n,b";
+    match env.get("WINEDLLOVERRIDES").map(|v| v.trim()) {
+        Some(existing) if existing.contains("version=") => existing.to_string(),
+        Some(existing) if !existing.is_empty() => format!("{existing};{HOOK}"),
+        _ => HOOK.to_string(),
+    }
+}
+
+/// Create the Wine prefix's `dosdevices` entries the profile asks for.
+///
+/// Equivalent to `mkdir -p $WINEPREFIX/dosdevices && ln -sfn <target> <link>`:
+/// an existing link is replaced, so re-running is harmless.
+#[cfg(unix)]
+fn prepare_prefix(profile: &GameProfile, log: &Log) -> anyhow::Result<()> {
+    if profile.wine_prefix.trim().is_empty() || profile.prefix_links.is_empty() {
+        return Ok(());
+    }
+    let prefix = PathBuf::from(&profile.wine_prefix);
+    for link in &profile.prefix_links {
+        let path = prefix.join(&link.link);
+        let parent = path
+            .parent()
+            .ok_or_else(|| anyhow::anyhow!("prefix link has no parent: {}", link.link))?;
+        std::fs::create_dir_all(parent)?;
+        // Replace rather than fail: `ln -sfn` semantics. Only ever remove a
+        // symlink — refusing on a real file avoids destroying prefix contents
+        // if a profile is misconfigured.
+        match std::fs::symlink_metadata(&path) {
+            Ok(meta) if meta.file_type().is_symlink() => std::fs::remove_file(&path)?,
+            Ok(_) => anyhow::bail!(
+                "refusing to replace {}: it exists and is not a symlink",
+                path.display()
+            ),
+            Err(_) => {}
+        }
+        std::os::unix::fs::symlink(&link.target, &path)?;
+        say(
+            log,
+            format!(
+                "[launcher] prefix link {} -> {}",
+                path.display(),
+                link.target
+            ),
+        );
+    }
+    Ok(())
+}
+
+/// Make sure the DRM licence file exists, running the generator if it does not.
+///
+/// A crashed or failed launch deletes the licence, so this runs before every
+/// launch rather than only on first setup — that is the behaviour the shell
+/// script proved, and it is why a crash is normally self-healing on the next try.
+#[cfg(unix)]
+fn ensure_license(profile: &GameProfile, log: &Log) -> anyhow::Result<()> {
+    let Some(lic) = &profile.license else {
+        return Ok(());
+    };
+    let path = resolve_under_prefix(&profile.wine_prefix, &lic.path);
+    if non_empty_file(&path) {
+        return Ok(());
+    }
+
+    say(
+        log,
+        format!(
+            "[launcher] licence missing ({}) — running {} to regenerate it",
+            path.display(),
+            lic.generator
+        ),
+    );
+
+    let mut cmd = Command::new(&profile.runner);
+    cmd.arg(&lic.generator)
+        .current_dir(&profile.game_dir)
+        .stdout(Stdio::null())
+        .stderr(Stdio::null());
+    for (k, v) in &profile.env {
+        cmd.env(k, v);
+    }
+    if !profile.wine_prefix.trim().is_empty() {
+        cmd.env("WINEPREFIX", &profile.wine_prefix);
+    }
+    let mut child = cmd
+        .spawn()
+        .map_err(|e| anyhow::anyhow!("could not start licence generator: {e}"))?;
+
+    let deadline = Instant::now() + Duration::from_secs(lic.timeout_secs.max(1));
+    while Instant::now() < deadline {
+        if non_empty_file(&path) {
+            stop_generator(&mut child, lic, log);
+            say(log, "[launcher] licence regenerated.");
+            return Ok(());
+        }
+        std::thread::sleep(Duration::from_millis(500));
+    }
+
+    stop_generator(&mut child, lic, log);
+    anyhow::bail!(
+        "{} did not create {} within {}s. Run it manually, choose GENERATE, then launch again.",
+        lic.generator,
+        path.display(),
+        lic.timeout_secs
+    )
+}
+
+/// Stop the licence generator and the Windows process it started.
+///
+/// Killing the runner is not enough: it launches the executable through Proton,
+/// so the `.exe` outlives its parent. The shell script used `pkill -f` for this
+/// and it is reproduced deliberately — the pattern is a Windows executable name,
+/// which cannot match the launcher or a shell running it. (A `pkill -f` pattern
+/// that *can* match its own caller is a real hazard; this one cannot.)
+#[cfg(unix)]
+fn stop_generator(child: &mut Child, lic: &crate::config::LicenseCheck, log: &Log) {
+    let _ = child.kill();
+    let _ = child.wait();
+    match Command::new("pkill").arg("-f").arg(&lic.generator).status() {
+        Ok(_) => {}
+        Err(e) => say(
+            log,
+            format!(
+                "[launcher] note: could not run pkill for {}: {e}",
+                lic.generator
+            ),
+        ),
+    }
+}
+
+/// A relative licence path is taken as relative to the Wine prefix; an absolute
+/// one is used as given.
+#[cfg(unix)]
+fn resolve_under_prefix(prefix: &str, path: &str) -> PathBuf {
+    let p = Path::new(path);
+    if p.is_absolute() || prefix.trim().is_empty() {
+        p.to_path_buf()
+    } else {
+        Path::new(prefix).join(p)
+    }
+}
+
+/// The script's `[[ -s FILE ]]`: present *and* non-empty. A zero-byte licence is
+/// as useless as a missing one, and treating it as valid would skip the
+/// regeneration that fixes it.
+#[cfg(unix)]
+fn non_empty_file(path: &Path) -> bool {
+    std::fs::metadata(path)
+        .map(|m| m.len() > 0)
+        .unwrap_or(false)
+}
+
+/// Pump a child's stdout and stderr into the log buffer and reap it.
+pub fn stream(
+    mut child: Child,
+    log: Log,
+    exit_msg: &'static str,
+    on_exit: impl FnOnce() + Send + 'static,
+) {
+    if let Some(out) = child.stdout.take() {
+        let buf = Arc::clone(&log);
+        std::thread::spawn(move || {
+            for line in BufReader::new(out).lines().map_while(Result::ok) {
+                buf.lock().push(line);
+            }
+        });
+    }
+    if let Some(err) = child.stderr.take() {
+        let buf = Arc::clone(&log);
+        std::thread::spawn(move || {
+            for line in BufReader::new(err).lines().map_while(Result::ok) {
+                buf.lock().push(line);
+            }
+        });
+    }
+    std::thread::spawn(move || {
+        let _ = child.wait();
+        log.lock().push(exit_msg.to_string());
+        on_exit();
+    });
+}
+
+#[cfg(all(test, unix))]
+mod tests {
+    use super::*;
+    use crate::config::{LicenseCheck, PrefixLink};
+
+    fn log() -> Log {
+        Arc::new(Mutex::new(LogBuffer::new()))
+    }
+
+    fn tmpdir(tag: &str) -> PathBuf {
+        let d =
+            std::env::temp_dir().join(format!("openfut-launch-test-{tag}-{}", std::process::id()));
+        let _ = std::fs::remove_dir_all(&d);
+        std::fs::create_dir_all(&d).unwrap();
+        d
+    }
+
+    #[test]
+    fn a_relative_licence_path_is_resolved_under_the_prefix() {
+        assert_eq!(
+            resolve_under_prefix("/p", "drive_c/lic.dlf"),
+            PathBuf::from("/p/drive_c/lic.dlf")
+        );
+        // Absolute wins, so a profile can point outside the prefix.
+        assert_eq!(
+            resolve_under_prefix("/p", "/elsewhere/lic.dlf"),
+            PathBuf::from("/elsewhere/lic.dlf")
+        );
+    }
+
+    #[test]
+    fn a_zero_byte_licence_does_not_count_as_present() {
+        let d = tmpdir("empty-lic");
+        let f = d.join("lic.dlf");
+        std::fs::write(&f, b"").unwrap();
+        assert!(
+            !non_empty_file(&f),
+            "an empty licence must trigger regeneration"
+        );
+        std::fs::write(&f, b"x").unwrap();
+        assert!(non_empty_file(&f));
+    }
+
+    #[test]
+    fn prefix_links_are_created_and_are_idempotent() {
+        let d = tmpdir("links");
+        let prefix = d.join("prefix");
+        let target = d.join("target");
+        std::fs::create_dir_all(&target).unwrap();
+
+        let profile = GameProfile {
+            runner: "true".into(),
+            executable: "x.exe".into(),
+            game_dir: d.to_string_lossy().into(),
+            wine_prefix: prefix.to_string_lossy().into(),
+            prefix_links: vec![PrefixLink {
+                link: "dosdevices/w:".into(),
+                target: target.to_string_lossy().into(),
+            }],
+            ..GameProfile::default()
+        };
+
+        prepare_prefix(&profile, &log()).expect("first run creates the link");
+        let link = prefix.join("dosdevices/w:");
+        assert!(std::fs::symlink_metadata(&link)
+            .unwrap()
+            .file_type()
+            .is_symlink());
+
+        // Re-running must not fail — the launcher prepares the prefix on EVERY
+        // launch, so a second launch would break if this were not idempotent.
+        prepare_prefix(&profile, &log()).expect("second run replaces the link");
+        assert_eq!(std::fs::read_link(&link).unwrap(), target);
+    }
+
+    #[test]
+    fn a_real_file_where_a_link_belongs_is_refused_not_deleted() {
+        let d = tmpdir("clobber");
+        let prefix = d.join("prefix");
+        std::fs::create_dir_all(prefix.join("dosdevices")).unwrap();
+        let occupied = prefix.join("dosdevices/w:");
+        std::fs::write(&occupied, b"important").unwrap();
+
+        let profile = GameProfile {
+            runner: "true".into(),
+            executable: "x.exe".into(),
+            game_dir: d.to_string_lossy().into(),
+            wine_prefix: prefix.to_string_lossy().into(),
+            prefix_links: vec![PrefixLink {
+                link: "dosdevices/w:".into(),
+                target: "/tmp".into(),
+            }],
+            ..GameProfile::default()
+        };
+
+        assert!(prepare_prefix(&profile, &log()).is_err());
+        assert_eq!(
+            std::fs::read(&occupied).unwrap(),
+            b"important",
+            "a misconfigured profile must not destroy prefix contents"
+        );
+    }
+
+    #[test]
+    fn a_present_licence_skips_the_generator_entirely() {
+        let d = tmpdir("lic-present");
+        let lic = d.join("lic.dlf");
+        std::fs::write(&lic, b"valid").unwrap();
+
+        let profile = GameProfile {
+            runner: "/nonexistent/runner".into(), // would fail if it were run
+            executable: "x.exe".into(),
+            game_dir: d.to_string_lossy().into(),
+            wine_prefix: d.to_string_lossy().into(),
+            license: Some(LicenseCheck {
+                path: "lic.dlf".into(),
+                generator: "_gen.exe".into(),
+                timeout_secs: 1,
+            }),
+            ..GameProfile::default()
+        };
+
+        // Proves the skip: the runner path is invalid, so reaching the generator
+        // would error. Ok() means it never tried.
+        ensure_license(&profile, &log()).expect("present licence must short-circuit");
+    }
+
+    /// The whole point of the licence step: a missing licence must actually run
+    /// the generator and wait for it. Without this, deleting `ensure_license`
+    /// entirely would still pass every other test in this file.
+    #[test]
+    fn a_missing_licence_runs_the_generator_and_waits_for_it() {
+        let d = tmpdir("lic-regen");
+        let lic = d.join("lic.dlf");
+        let gen = d.join("gen.sh");
+        // Sleeps first, so passing requires actually waiting rather than
+        // happening to observe a file that was already there. The target path
+        // is baked in: `generator` is passed as ONE argument, exactly as
+        // `umu-run "_fifa17.exe"` is.
+        std::fs::write(
+            &gen,
+            format!(
+                "#!/bin/sh\nsleep 1\nprintf licensed > '{}'\n",
+                lic.display()
+            ),
+        )
+        .unwrap();
+
+        let profile = GameProfile {
+            runner: "/bin/sh".into(),
+            executable: "unused".into(),
+            game_dir: d.to_string_lossy().into(),
+            wine_prefix: d.to_string_lossy().into(),
+            license: Some(LicenseCheck {
+                generator: gen.to_string_lossy().into(),
+                path: "lic.dlf".into(),
+                timeout_secs: 10,
+            }),
+            ..GameProfile::default()
+        };
+
+        assert!(!non_empty_file(&lic));
+        ensure_license(&profile, &log()).expect("generator should produce the licence");
+        assert!(non_empty_file(&lic), "licence was not created");
+    }
+
+    #[test]
+    fn a_generator_that_never_delivers_times_out_with_an_actionable_error() {
+        let d = tmpdir("lic-timeout");
+        let gen = d.join("gen.sh");
+        std::fs::write(&gen, "#!/bin/sh\nexit 0\n").unwrap();
+        let profile = GameProfile {
+            runner: "/bin/sh".into(),
+            executable: "unused".into(),
+            game_dir: d.to_string_lossy().into(),
+            wine_prefix: d.to_string_lossy().into(),
+            license: Some(LicenseCheck {
+                generator: gen.to_string_lossy().into(), // runs, writes nothing
+                path: "lic.dlf".into(),
+                timeout_secs: 1,
+            }),
+            ..GameProfile::default()
+        };
+        let err = ensure_license(&profile, &log()).unwrap_err().to_string();
+        assert!(err.contains("did not create"), "{err}");
+        assert!(
+            err.contains("GENERATE"),
+            "the error must say what to do: {err}"
+        );
+    }
+
+    #[test]
+    fn launch_refuses_a_missing_game_dir_before_touching_anything() {
+        let profile = GameProfile {
+            runner: "true".into(),
+            executable: "x.exe".into(),
+            game_dir: "/definitely/not/here".into(),
+            ..GameProfile::default()
+        };
+        let err = launch(&profile, &log(), || {}).unwrap_err().to_string();
+        assert!(err.contains("game_dir does not exist"), "{err}");
+    }
+
+    #[test]
+    fn a_profile_without_overrides_still_gets_the_hook_hijack() {
+        // The regression this guards: FIFA launched from the launcher ignored the
+        // configured Blaze ports entirely, because Proton loaded its own builtin
+        // version.dll and the hook proxy never ran. The launch looked healthy.
+        assert_eq!(hook_dll_overrides(&BTreeMap::new()), "version=n,b");
+    }
+
+    #[test]
+    fn unrelated_overrides_are_preserved_and_appended_to() {
+        let env = BTreeMap::from([("WINEDLLOVERRIDES".to_string(), "d3d11=n".to_string())]);
+        assert_eq!(hook_dll_overrides(&env), "d3d11=n;version=n,b");
+    }
+
+    #[test]
+    fn an_explicit_version_override_is_never_overruled() {
+        // An operator disabling the hijack on purpose must win, otherwise the
+        // setting is a lie.
+        let env = BTreeMap::from([("WINEDLLOVERRIDES".to_string(), "version=b".to_string())]);
+        assert_eq!(hook_dll_overrides(&env), "version=b");
+    }
+
+    #[test]
+    fn a_blank_override_is_treated_as_absent_rather_than_appended_to() {
+        let env = BTreeMap::from([("WINEDLLOVERRIDES".to_string(), "   ".to_string())]);
+        assert_eq!(hook_dll_overrides(&env), "version=n,b");
+    }
+}

src/health.rs

@@ -0,0 +1,134 @@
+//! Read-only health monitoring of the (remote) OpenFUT server.
+//!
+//! The launcher no longer *controls* the servers — they run elsewhere (e.g. in
+//! Docker on the server host). This module polls the configured server in a
+//! background thread and exposes a snapshot the UI can render. It never starts,
+//! stops, or assumes anything about how the server is hosted; it only asks
+//! "can the FIFA client reach it right now?".
+
+use parking_lot::Mutex;
+use std::{
+    net::{TcpStream, ToSocketAddrs},
+    sync::{
+        atomic::{AtomicBool, Ordering},
+        Arc,
+    },
+    thread,
+    time::{Duration, Instant},
+};
+
+const POLL_INTERVAL: Duration = Duration::from_secs(3);
+const CONNECT_TIMEOUT: Duration = Duration::from_secs(3);
+
+/// A snapshot of the last health probe, rendered by the dashboard.
+#[derive(Clone)]
+pub struct HealthState {
+    /// None = not yet checked / no target; Some(true/false) = reachable or not.
+    pub reachable: Option<bool>,
+    pub detail: String,
+    pub last_checked: Option<Instant>,
+}
+
+impl Default for HealthState {
+    fn default() -> Self {
+        Self {
+            reachable: None,
+            detail: "No server configured.".into(),
+            last_checked: None,
+        }
+    }
+}
+
+/// Background poller. Holds a shared target (host, port) the UI can update when
+/// the user changes the server address, and a shared state the UI reads.
+pub struct HealthMonitor {
+    pub state: Arc<Mutex<HealthState>>,
+    target: Arc<Mutex<Option<(String, u16)>>>,
+    running: Arc<AtomicBool>,
+}
+
+impl HealthMonitor {
+    pub fn new() -> Self {
+        let state = Arc::new(Mutex::new(HealthState::default()));
+        let target: Arc<Mutex<Option<(String, u16)>>> = Arc::new(Mutex::new(None));
+        let running = Arc::new(AtomicBool::new(true));
+
+        let t_state = Arc::clone(&state);
+        let t_target = Arc::clone(&target);
+        let t_running = Arc::clone(&running);
+        thread::spawn(move || {
+            while t_running.load(Ordering::Relaxed) {
+                let target = t_target.lock().clone();
+                match target {
+                    None => {
+                        *t_state.lock() = HealthState::default();
+                    }
+                    Some((host, port)) => {
+                        let snapshot = probe(&host, port);
+                        *t_state.lock() = snapshot;
+                    }
+                }
+                thread::sleep(POLL_INTERVAL);
+            }
+        });
+
+        Self {
+            state,
+            target,
+            running,
+        }
+    }
+
+    /// Point the monitor at a new server address (host + bridge port). Passing
+    /// None (e.g. no server configured) puts it back into the idle state.
+    pub fn set_target(&self, target: Option<(String, u16)>) {
+        *self.target.lock() = target;
+    }
+
+    pub fn snapshot(&self) -> HealthState {
+        self.state.lock().clone()
+    }
+}
+
+impl Drop for HealthMonitor {
+    fn drop(&mut self) {
+        self.running.store(false, Ordering::Relaxed);
+    }
+}
+
+/// A single reachability probe: DNS-resolve host:port and attempt a bounded TCP
+/// connect. A successful connect proves the FIFA client can reach the bridge.
+fn probe(host: &str, port: u16) -> HealthState {
+    let now = Some(Instant::now());
+    let addrs = match (host, port).to_socket_addrs() {
+        Ok(a) => a.collect::<Vec<_>>(),
+        Err(e) => {
+            return HealthState {
+                reachable: Some(false),
+                detail: format!("Cannot resolve {host}: {e}"),
+                last_checked: now,
+            };
+        }
+    };
+    if addrs.is_empty() {
+        return HealthState {
+            reachable: Some(false),
+            detail: format!("{host} resolved to no addresses"),
+            last_checked: now,
+        };
+    }
+    for addr in &addrs {
+        if TcpStream::connect_timeout(addr, CONNECT_TIMEOUT).is_ok() {
+            return HealthState {
+                reachable: Some(true),
+                detail: format!("Reachable at {addr}"),
+                last_checked: now,
+            };
+        }
+    }
+    HealthState {
+        reachable: Some(false),
+        detail: format!("{host}:{port} not reachable"),
+        last_checked: now,
+    }
+}

src/launch.rs

@@ -0,0 +1,940 @@
+//! The launch sequence, as an explicit state machine.
+//!
+//! # Why this exists
+//!
+//! The launcher used to make the user perform OpenFUT's internal launch order by
+//! hand: start LSX, start autopatch, run pre-launch checks, "Arm client", then
+//! press a button called *Start Services & Launch Game*. Every one of those is an
+//! implementation detail of how FIFA 17 is persuaded to talk to OpenFUT, and
+//! getting the order wrong produced failures that surfaced much later as "the
+//! game crashed" — autopatch started before `ptrace_scope` was 0 silently does
+//! nothing at all.
+//!
+//! So the sequence lives here, once, and the UI renders it. One button.
+//!
+//! # Ordering, and where it deviates from the obvious
+//!
+//! Client preparation (`arm`) runs BEFORE autopatch, not after: autopatch writes
+//! `/proc/<FIFA17.exe>/mem`, which Yama forbids until arming sets
+//! `kernel.yama.ptrace_scope=0`. Starting autopatch first would "succeed" and
+//! then quietly fail to patch anything.
+//!
+//! # Idempotence
+//!
+//! Every step asks what is already true before acting. A healthy service is
+//! reused, never restarted; client preparation is skipped when the checks it
+//! would repair already pass, which also avoids an unnecessary Polkit prompt.
+//!
+//! # Testability
+//!
+//! The effects — spawning services, elevating for arming, writing the hook
+//! config, starting the game — sit behind [`LaunchOps`]. [`run_sequence`] is
+//! therefore a pure decision procedure over observed state, and the sequencing
+//! rules that matter (don't launch after a failed step, don't restart healthy
+//! services, don't kill what we didn't start) are unit-testable without a FIFA
+//! install, a Polkit agent, or root.
+
+use std::sync::Arc;
+
+use crate::config::LauncherConfig;
+use crate::fifa17_capability::Fifa17ClientCapabilities;
+use crate::local_services::{
+    CapabilityWiring, Ensured, Service, ServiceRuntime, ServiceSupervisor, SpawnSpec,
+};
+use crate::logs::LogBuffer;
+use crate::preflight::{self, Check, State};
+use parking_lot::Mutex;
+
+/// Where the launch sequence is. Rendered directly by the UI; the UI never
+/// coordinates services itself.
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
+pub enum Phase {
+    /// Nothing in flight. Readiness still comes from observed state, not from
+    /// having been here.
+    #[default]
+    Idle,
+    /// Looking at the world: checks + service + hook state.
+    Checking,
+    /// Elevated client preparation in flight (this is what shows a password
+    /// prompt).
+    PreparingClient,
+    StartingServices,
+    /// Re-checking after repair, before committing to a launch.
+    Validating,
+    Launching,
+    /// FIFA is up. Left when the process exits.
+    Running,
+    Failed,
+}
+
+impl Phase {
+    /// Whether a launch is under way, i.e. the primary button must not start a
+    /// second one.
+    pub fn busy(self) -> bool {
+        matches!(
+            self,
+            Phase::Checking
+                | Phase::PreparingClient
+                | Phase::StartingServices
+                | Phase::Validating
+                | Phase::Launching
+        )
+    }
+}
+
+/// One step of the sequence, in execution order.
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum Step {
+    Server,
+    ClientFiles,
+    ClientPreparation,
+    Lsx,
+    Autopatch,
+    FinalChecks,
+    Game,
+}
+
+impl Step {
+    /// User-facing name. Deliberately not the internal vocabulary: "arm" is
+    /// implementation terminology and never appears in the normal flow.
+    pub fn label(self) -> &'static str {
+        match self {
+            Step::Server => "OpenFUT server",
+            Step::ClientFiles => "Client files",
+            Step::ClientPreparation => "Client preparation",
+            Step::Lsx => "LSX",
+            Step::Autopatch => "Autopatch",
+            Step::FinalChecks => "Final checks",
+            Step::Game => "FIFA 17",
+        }
+    }
+}
+
+/// How a step ended. `Skipped` is a success that did nothing — the state it
+/// would have produced was already true.
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub enum Outcome {
+    Done(String),
+    Skipped(String),
+    Failed(String),
+}
+
+impl Outcome {
+    pub fn ok(&self) -> bool {
+        !matches!(self, Outcome::Failed(_))
+    }
+
+    pub fn detail(&self) -> &str {
+        match self {
+            Outcome::Done(d) | Outcome::Skipped(d) | Outcome::Failed(d) => d,
+        }
+    }
+}
+
+/// Everything the UI needs to render the launch surface.
+#[derive(Debug, Clone, Default)]
+pub struct LaunchState {
+    pub phase: Phase,
+    /// Steps attempted by the most recent run, in order.
+    pub steps: Vec<(Step, Outcome)>,
+    /// One-line reason the run failed, for the top of the failure card. The
+    /// per-step detail carries the specifics.
+    pub failure: Option<String>,
+    /// The most recent preflight results and when they were taken. Cached
+    /// because the checks open sockets with timeouts and cannot run per frame.
+    pub checks: Option<Vec<Check>>,
+    pub checks_age: Option<std::time::Instant>,
+}
+
+impl LaunchState {
+    fn begin(&mut self, phase: Phase) {
+        self.phase = phase;
+        self.steps.clear();
+        self.failure = None;
+    }
+
+    fn record(&mut self, step: Step, outcome: Outcome) {
+        if let Outcome::Failed(reason) = &outcome {
+            self.failure = Some(format!("{}: {reason}", step.label()));
+        }
+        self.steps.push((step, outcome));
+    }
+}
+
+/// The effects the sequence performs. Implemented for real by [`RealOps`] and
+/// substituted in tests.
+pub trait LaunchOps {
+    /// Confirm the configured OpenFUT server is answering AND select the account
+    /// for this session. The server is remote by design, so this is a network
+    /// fact, never "is something local up". Returns a user-facing summary.
+    fn connect_server(&mut self) -> Result<String, String>;
+    /// Version.dll + a readable openfut.cfg. `Err` is a hard stop: without them
+    /// FIFA talks to EA, not OpenFUT.
+    fn ensure_client_files(&mut self) -> Result<String, String>;
+    /// Which of the arming-repairable checks are currently failing.
+    fn run_checks(&mut self) -> Vec<Check>;
+    /// Elevated client preparation (`arm`). Returns what it changed.
+    fn prepare_client(&mut self) -> Result<Vec<String>, String>;
+    fn ensure_service(&mut self, service: Service) -> Result<Ensured, String>;
+    fn start_game(&mut self) -> Result<(), String>;
+}
+
+/// Checks that client preparation is able to repair. A failure in any of these
+/// means "prepare the client", not "give up".
+fn preparation_repairs(check: &Check) -> bool {
+    const REPAIRABLE: [&str; 3] = [
+        "ptrace_scope (autopatch)",
+        "EA redirector IP is redirected",
+        "EA hostnames point at OpenFUT",
+    ];
+    REPAIRABLE.contains(&check.name.as_str())
+}
+
+/// Run the whole sequence, publishing progress into `state` as it goes.
+///
+/// Returns whether FIFA was started. Stops at the first failed step: launching
+/// into a known-broken client produces a session that fails minutes later with
+/// no message naming the cause, which is precisely the failure mode this
+/// launcher exists to prevent.
+pub fn run_sequence(ops: &mut dyn LaunchOps, state: &Arc<Mutex<LaunchState>>) -> bool {
+    macro_rules! step {
+        ($phase:expr, $step:expr, $body:expr) => {{
+            state.lock().phase = $phase;
+            let outcome: Outcome = $body;
+            let ok = outcome.ok();
+            state.lock().record($step, outcome);
+            if !ok {
+                state.lock().phase = Phase::Failed;
+                return false;
+            }
+        }};
+    }
+
+    state.lock().begin(Phase::Checking);
+
+    // ── The server, which is remote and not ours to start ────────────────────
+    step!(Phase::Checking, Step::Server, {
+        match ops.connect_server() {
+            Ok(detail) => Outcome::Done(detail),
+            Err(e) => Outcome::Failed(e),
+        }
+    });
+
+    // ── The hook the game loads, reconciled with the current settings ────────
+    step!(Phase::Checking, Step::ClientFiles, {
+        match ops.ensure_client_files() {
+            Ok(detail) => Outcome::Done(detail),
+            Err(e) => Outcome::Failed(e),
+        }
+    });
+
+    // ── Client preparation, only if something it repairs is broken ───────────
+    let checks = ops.run_checks();
+    let broken: Vec<String> = checks
+        .iter()
+        .filter(|c| c.state == State::Fail && preparation_repairs(c))
+        .map(|c| c.name.clone())
+        .collect();
+    {
+        let mut guard = state.lock();
+        guard.checks = Some(checks);
+        guard.checks_age = Some(std::time::Instant::now());
+    }
+    step!(Phase::PreparingClient, Step::ClientPreparation, {
+        if broken.is_empty() {
+            Outcome::Skipped("already prepared".into())
+        } else {
+            match ops.prepare_client() {
+                Ok(changes) => Outcome::Done(format!("{} change(s) applied", changes.len())),
+                Err(e) => Outcome::Failed(e),
+            }
+        }
+    });
+
+    // ── Companion services, in dependency order ─────────────────────────────
+    for (service, step) in [
+        (Service::Lsx, Step::Lsx),
+        (Service::Autopatch, Step::Autopatch),
+    ] {
+        step!(Phase::StartingServices, step, {
+            match ops.ensure_service(service) {
+                Ok(Ensured::Reused) => Outcome::Skipped("already running".into()),
+                Ok(Ensured::Started) => Outcome::Done("started".into()),
+                Err(e) => Outcome::Failed(e),
+            }
+        });
+    }
+
+    // ── Validate what the repairs were supposed to fix ──────────────────────
+    step!(Phase::Validating, Step::FinalChecks, {
+        let checks = ops.run_checks();
+        let failed: Vec<String> = checks
+            .iter()
+            .filter(|c| c.state == State::Fail)
+            .map(|c| c.name.clone())
+            .collect();
+        {
+            let mut guard = state.lock();
+            guard.checks = Some(checks);
+            guard.checks_age = Some(std::time::Instant::now());
+        }
+        if failed.is_empty() {
+            Outcome::Done("all checks pass".into())
+        } else {
+            Outcome::Failed(format!("still failing: {}", failed.join(", ")))
+        }
+    });
+
+    step!(Phase::Launching, Step::Game, {
+        match ops.start_game() {
+            Ok(()) => Outcome::Done("started".into()),
+            Err(e) => Outcome::Failed(e),
+        }
+    });
+
+    state.lock().phase = Phase::Running;
+    true
+}
+
+/// Observe the world without changing it, for the status rows on open and after
+/// a settings change. Shares [`run_sequence`]'s notion of what "ready" means so
+/// the two cannot drift apart.
+pub fn refresh_checks(ops: &mut dyn LaunchOps, state: &Arc<Mutex<LaunchState>>) {
+    state.lock().phase = Phase::Checking;
+    let checks = ops.run_checks();
+    let mut guard = state.lock();
+    guard.checks = Some(checks);
+    guard.checks_age = Some(std::time::Instant::now());
+    guard.phase = Phase::Idle;
+}
+
+/// What happens to launcher-started services when FIFA exits.
+///
+/// Exists so the answer is a stated policy rather than an oversight. The shipped
+/// value stops nothing:
+///
+/// * The companion services are reusable across launches — LSX has to be holding
+///   :4216 before FIFA dials it, and the next launch would only start them again.
+/// * A service the launcher did NOT start is never in the stop list under any
+///   value of this policy.
+///
+/// Client preparation is deliberately absent, and is never reverted: it is host
+/// state (`ptrace_scope`, a DNAT, `/etc/hosts`) that `client_arm.sh` also leaves
+/// set and that every subsequent launch needs. A flag for it would be a flag
+/// nothing honours.
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
+pub struct CleanupPolicy {
+    pub stop_launcher_started_services: bool,
+}
+
+/// Which services cleanup is allowed to stop after `FIFA` exits: only ones this
+/// launcher started, and only if the policy says so.
+pub fn services_to_stop(
+    policy: CleanupPolicy,
+    runtimes: &[(Service, ServiceRuntime)],
+) -> Vec<Service> {
+    if !policy.stop_launcher_started_services {
+        return Vec::new();
+    }
+    runtimes
+        .iter()
+        .filter(|(_, r)| r.running && r.started_by_launcher)
+        .map(|(s, _)| *s)
+        .collect()
+}
+
+/// Summary of one dependency for the main card.
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum Readiness {
+    Ready,
+    Busy,
+    Attention,
+    /// Never looked, or the answer is stale. Never rendered as Ready.
+    Unknown,
+}
+
+/// Client-integration readiness from the cached checks. `Unknown` until a run has
+/// actually happened: "we did not look" must not look like "we looked and it was
+/// fine".
+pub fn client_integration(state: &LaunchState) -> Readiness {
+    if matches!(state.phase, Phase::PreparingClient) {
+        return Readiness::Busy;
+    }
+    match &state.checks {
+        None => Readiness::Unknown,
+        Some(checks) => {
+            let relevant: Vec<&Check> = checks.iter().filter(|c| preparation_repairs(c)).collect();
+            if relevant.iter().any(|c| c.state == State::Fail) {
+                Readiness::Attention
+            } else if relevant.iter().all(|c| c.state == State::Skipped) {
+                // Nothing configured to check, so nothing was verified.
+                Readiness::Unknown
+            } else {
+                Readiness::Ready
+            }
+        }
+    }
+}
+
+/// Overall readiness for the card's headline pill. Anything short of every
+/// dependency being observed-good is not Ready.
+pub fn overall(
+    phase: Phase,
+    server: Readiness,
+    integration: Readiness,
+    services: Readiness,
+    hook: Readiness,
+) -> Readiness {
+    if phase == Phase::Running {
+        return Readiness::Ready;
+    }
+    if phase.busy() {
+        return Readiness::Busy;
+    }
+    let parts = [server, integration, services, hook];
+    if parts.contains(&Readiness::Attention) {
+        Readiness::Attention
+    } else if parts.contains(&Readiness::Unknown) {
+        Readiness::Unknown
+    } else {
+        Readiness::Ready
+    }
+}
+
+/// [`LaunchOps`] against the actual machine.
+///
+/// Holds a snapshot of the config: a launch must not change its mind halfway
+/// through because the user edited a field while it ran.
+pub struct RealOps {
+    config: LauncherConfig,
+    services: Arc<Mutex<ServiceSupervisor>>,
+    logs: Arc<Mutex<LogBuffer>>,
+    caps: Arc<Mutex<Fifa17ClientCapabilities>>,
+    state: Arc<Mutex<LaunchState>>,
+}
+
+impl RealOps {
+    fn say(&self, message: impl Into<String>) {
+        self.logs.lock().push(message.into());
+    }
+}
+
+impl LaunchOps for RealOps {
+    fn connect_server(&mut self) -> Result<String, String> {
+        self.config.validate_server()?;
+        if preflight::backend_reachable(&self.config).state == State::Fail {
+            return Err(format!(
+                "{} is not answering — is the OpenFUT server running?",
+                self.config.openfut_server_host
+            ));
+        }
+        // Selecting the account is part of connecting: LSX and FIFA both
+        // authenticate as this persona, and a launch with the wrong one produces
+        // a session that looks fine and belongs to nobody.
+        let account = crate::account_sync::sync(&self.config)?;
+        self.say(format!(
+            "[launcher] account synchronized: {}/{} FUT-coins={} unopened-packs={}",
+            account.persona_id, account.persona_name, account.coins, account.unopened_packs
+        ));
+        Ok(format!(
+            "{} · {}",
+            self.config.openfut_server_host, account.persona_name
+        ))
+    }
+
+    fn ensure_client_files(&mut self) -> Result<String, String> {
+        let game_dir = std::path::PathBuf::from(&self.config.fifa_game_dir);
+        if !crate::setup::hook_dll_deployed(&game_dir) {
+            return Err("network hook is not deployed — use Setup to deploy it".into());
+        }
+        // The file the game reads is reconciled here, and only here: this is the
+        // one moment it is guaranteed to agree with the settings on screen.
+        let contents = self.config.hook_cfg_contents()?;
+        crate::setup::update_hook_config(&game_dir, &contents).map_err(|e| {
+            format!(
+                "cannot write {} in {}: {e}",
+                crate::setup::HOOK_CFG_FILE,
+                self.config.fifa_game_dir
+            )
+        })?;
+        Ok(format!(
+            "hook → {}:{}",
+            self.config.openfut_server_host, self.config.openfut_https_port
+        ))
+    }
+
+    fn run_checks(&mut self) -> Vec<Check> {
+        preflight::run(&self.config)
+    }
+
+    fn prepare_client(&mut self) -> Result<Vec<String>, String> {
+        match crate::arm::arm(&self.config) {
+            Ok(changes) => {
+                for change in &changes {
+                    self.say(format!("[launcher] prepared: {change}"));
+                }
+                Ok(changes)
+            }
+            Err(e) => Err(e.to_string()),
+        }
+    }
+
+    fn ensure_service(&mut self, service: Service) -> Result<Ensured, String> {
+        let spec = SpawnSpec {
+            persona_id: self.config.fut_persona_id,
+            persona_name: self.config.fut_persona_name.clone(),
+            // Only autopatch advertises the verified resolver guard, so only it
+            // receives the shared capability sink.
+            capability: match service {
+                Service::Autopatch => Some(CapabilityWiring {
+                    server_host: self.config.openfut_server_host.clone(),
+                    account_sync_port: self.config.openfut_account_sync_port,
+                    sink: Arc::clone(&self.caps),
+                }),
+                Service::Lsx => None,
+            },
+        };
+        self.services.lock().ensure_running(service, spec)
+    }
+
+    fn start_game(&mut self) -> Result<(), String> {
+        // A new FIFA process starts with UNKNOWN capability: never inherit the
+        // previous launch's. The autopatch stdout reader repopulates it.
+        *self.caps.lock() = Default::default();
+
+        let state = Arc::clone(&self.state);
+        let logs = Arc::clone(&self.logs);
+        let services = Arc::clone(&self.services);
+        let on_exit = move || {
+            // Cleanup goes through the policy rather than through habit, so the
+            // list can never include a service this launcher did not start.
+            let runtimes: Vec<_> = {
+                let mut supervisor = services.lock();
+                [Service::Lsx, Service::Autopatch]
+                    .into_iter()
+                    .map(|s| {
+                        let runtime = supervisor.observe(s);
+                        (s, runtime)
+                    })
+                    .collect()
+            };
+            for service in services_to_stop(CleanupPolicy::default(), &runtimes) {
+                if let Err(e) = services.lock().stop(service) {
+                    logs.lock().push(format!("[launcher] cleanup: {e}"));
+                }
+            }
+            state.lock().phase = Phase::Idle;
+            logs.lock()
+                .push("[launcher] FIFA exited; launcher back to Ready.".to_string());
+        };
+
+        // Prefer the native profile; fall back to the user's shell command so an
+        // existing working setup keeps working after an upgrade.
+        if self.config.game_profile.configured() {
+            crate::game_launch::launch(&self.config.game_profile, &self.logs, on_exit)
+                .map_err(|e| e.to_string())
+        } else {
+            crate::setup::launch_game(
+                &self.config.game_launch_command,
+                &self.config.game_launch_workdir,
+                Arc::clone(&self.logs),
+                on_exit,
+            )
+            .map_err(|e| e.to_string())
+        }
+    }
+}
+
+/// Drives [`run_sequence`] on a worker thread. The UI thread never blocks on a
+/// socket, a Polkit prompt or a process spawn.
+pub struct Controller {
+    pub state: Arc<Mutex<LaunchState>>,
+    pub services: Arc<Mutex<ServiceSupervisor>>,
+}
+
+impl Controller {
+    pub fn new(logs: Arc<Mutex<LogBuffer>>) -> Self {
+        Self {
+            state: Arc::new(Mutex::new(LaunchState::default())),
+            services: Arc::new(Mutex::new(ServiceSupervisor::new(logs))),
+        }
+    }
+
+    pub fn snapshot(&self) -> LaunchState {
+        self.state.lock().clone()
+    }
+
+    fn ops(
+        &self,
+        config: &LauncherConfig,
+        logs: &Arc<Mutex<LogBuffer>>,
+        caps: &Arc<Mutex<Fifa17ClientCapabilities>>,
+    ) -> RealOps {
+        RealOps {
+            config: config.clone(),
+            services: Arc::clone(&self.services),
+            logs: Arc::clone(logs),
+            caps: Arc::clone(caps),
+            state: Arc::clone(&self.state),
+        }
+    }
+
+    /// Start the full sequence. Ignored while one is already in flight or the
+    /// game is up — the button reflects that state rather than queueing work.
+    pub fn launch(
+        &self,
+        config: &LauncherConfig,
+        logs: &Arc<Mutex<LogBuffer>>,
+        caps: &Arc<Mutex<Fifa17ClientCapabilities>>,
+    ) {
+        {
+            let phase = self.state.lock().phase;
+            if phase.busy() || phase == Phase::Running {
+                return;
+            }
+        }
+        let mut ops = self.ops(config, logs, caps);
+        let state = Arc::clone(&self.state);
+        std::thread::spawn(move || {
+            run_sequence(&mut ops, &state);
+        });
+    }
+
+    /// Re-observe without changing anything, for startup and after a settings
+    /// change. Skipped while a launch owns the state.
+    pub fn refresh(
+        &self,
+        config: &LauncherConfig,
+        logs: &Arc<Mutex<LogBuffer>>,
+        caps: &Arc<Mutex<Fifa17ClientCapabilities>>,
+    ) {
+        {
+            let phase = self.state.lock().phase;
+            if phase.busy() || phase == Phase::Running {
+                return;
+            }
+        }
+        let mut ops = self.ops(config, logs, caps);
+        let state = Arc::clone(&self.state);
+        std::thread::spawn(move || {
+            refresh_checks(&mut ops, &state);
+        });
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    /// Records what the sequence asked for, and answers however the test wants.
+    #[derive(Default)]
+    #[allow(clippy::type_complexity)]
+    struct FakeOps {
+        server_up: bool,
+        client_files: Option<Result<String, String>>,
+        checks: Vec<Check>,
+        checks_after_prepare: Option<Vec<Check>>,
+        prepare_result: Option<Result<Vec<String>, String>>,
+        service_result: Vec<(Service, Result<Ensured, String>)>,
+        game_result: Option<Result<(), String>>,
+        // Observed calls
+        prepared: usize,
+        started: Vec<Service>,
+        game_started: usize,
+        check_runs: usize,
+    }
+
+    fn check(name: &str, state: State) -> Check {
+        Check {
+            name: name.into(),
+            state,
+            detail: String::new(),
+        }
+    }
+
+    fn ready_ops() -> FakeOps {
+        FakeOps {
+            server_up: true,
+            client_files: Some(Ok("deployed".into())),
+            checks: vec![
+                check("ptrace_scope (autopatch)", State::Pass),
+                check("EA redirector IP is redirected", State::Pass),
+                check("EA hostnames point at OpenFUT", State::Pass),
+            ],
+            prepare_result: Some(Ok(vec!["one".into()])),
+            game_result: Some(Ok(())),
+            ..FakeOps::default()
+        }
+    }
+
+    impl LaunchOps for FakeOps {
+        fn connect_server(&mut self) -> Result<String, String> {
+            if self.server_up {
+                Ok("connected".into())
+            } else {
+                Err("not reachable — is the OpenFUT server running?".into())
+            }
+        }
+        fn ensure_client_files(&mut self) -> Result<String, String> {
+            self.client_files
+                .clone()
+                .unwrap_or_else(|| Err("no client-files result configured".into()))
+        }
+        fn run_checks(&mut self) -> Vec<Check> {
+            self.check_runs += 1;
+            match (&self.checks_after_prepare, self.prepared) {
+                (Some(after), n) if n > 0 => after.clone(),
+                _ => self.checks.clone(),
+            }
+        }
+        fn prepare_client(&mut self) -> Result<Vec<String>, String> {
+            self.prepared += 1;
+            self.prepare_result
+                .clone()
+                .unwrap_or_else(|| Err("no prepare configured".into()))
+        }
+        fn ensure_service(&mut self, service: Service) -> Result<Ensured, String> {
+            self.started.push(service);
+            self.service_result
+                .iter()
+                .find(|(s, _)| *s == service)
+                .map(|(_, r)| r.clone())
+                .unwrap_or(Ok(Ensured::Started))
+        }
+        fn start_game(&mut self) -> Result<(), String> {
+            self.game_started += 1;
+            self.game_result
+                .clone()
+                .unwrap_or_else(|| Err("no game result configured".into()))
+        }
+    }
+
+    fn state() -> Arc<Mutex<LaunchState>> {
+        Arc::new(Mutex::new(LaunchState::default()))
+    }
+
+    #[test]
+    fn a_cold_client_is_prepared_and_started_in_dependency_order() {
+        let mut ops = FakeOps {
+            checks: vec![check("ptrace_scope (autopatch)", State::Fail)],
+            checks_after_prepare: Some(vec![check("ptrace_scope (autopatch)", State::Pass)]),
+            ..ready_ops()
+        };
+        let st = state();
+        assert!(run_sequence(&mut ops, &st));
+        assert_eq!(
+            ops.prepared, 1,
+            "a failing repairable check must be repaired"
+        );
+        // Preparation before autopatch: autopatch cannot write FIFA's memory
+        // until arming has set ptrace_scope, and would silently no-op.
+        assert_eq!(ops.started, vec![Service::Lsx, Service::Autopatch]);
+        assert_eq!(ops.game_started, 1);
+        assert_eq!(st.lock().phase, Phase::Running);
+    }
+
+    #[test]
+    fn an_already_prepared_client_is_not_prepared_again() {
+        let mut ops = ready_ops();
+        let st = state();
+        assert!(run_sequence(&mut ops, &st));
+        assert_eq!(ops.prepared, 0, "no password prompt for work already done");
+        let steps = &st.lock().steps;
+        let prep = steps
+            .iter()
+            .find(|(s, _)| *s == Step::ClientPreparation)
+            .expect("preparation step recorded")
+            .1
+            .clone();
+        assert!(matches!(prep, Outcome::Skipped(_)), "{prep:?}");
+    }
+
+    #[test]
+    fn healthy_services_are_reused_rather_than_restarted() {
+        let mut ops = FakeOps {
+            service_result: vec![
+                (Service::Lsx, Ok(Ensured::Reused)),
+                (Service::Autopatch, Ok(Ensured::Reused)),
+            ],
+            ..ready_ops()
+        };
+        let st = state();
+        assert!(run_sequence(&mut ops, &st));
+        for step in [Step::Lsx, Step::Autopatch] {
+            let outcome = st
+                .lock()
+                .steps
+                .iter()
+                .find(|(s, _)| *s == step)
+                .expect("service step recorded")
+                .1
+                .clone();
+            assert!(
+                matches!(outcome, Outcome::Skipped(_)),
+                "{step:?} {outcome:?}"
+            );
+        }
+        assert_eq!(ops.game_started, 1);
+    }
+
+    #[test]
+    fn an_unreachable_server_stops_the_launch_before_anything_is_touched() {
+        let mut ops = FakeOps {
+            server_up: false,
+            ..ready_ops()
+        };
+        let st = state();
+        assert!(!run_sequence(&mut ops, &st));
+        assert_eq!(ops.prepared, 0);
+        assert!(ops.started.is_empty(), "nothing may be started");
+        assert_eq!(ops.game_started, 0);
+        assert_eq!(st.lock().phase, Phase::Failed);
+        assert!(st.lock().failure.as_deref().unwrap().contains("server"));
+    }
+
+    #[test]
+    fn a_service_that_fails_to_start_stops_the_launch() {
+        let mut ops = FakeOps {
+            service_result: vec![(Service::Autopatch, Err("autopatch: boom".into()))],
+            ..ready_ops()
+        };
+        let st = state();
+        assert!(!run_sequence(&mut ops, &st));
+        assert_eq!(ops.game_started, 0, "FIFA must not start without autopatch");
+        let failure = st.lock().failure.clone().unwrap();
+        assert!(failure.contains("Autopatch"), "{failure}");
+    }
+
+    #[test]
+    fn failed_client_preparation_stops_the_launch() {
+        let mut ops = FakeOps {
+            checks: vec![check("ptrace_scope (autopatch)", State::Fail)],
+            prepare_result: Some(Err("pkexec: dismissed".into())),
+            ..ready_ops()
+        };
+        let st = state();
+        assert!(!run_sequence(&mut ops, &st));
+        assert!(ops.started.is_empty());
+        assert_eq!(ops.game_started, 0);
+    }
+
+    #[test]
+    fn a_check_still_failing_after_repair_stops_the_launch() {
+        // Preparation ran and claimed success, but the state it was supposed to
+        // fix is still broken. Launching here is how a session dies later with
+        // no message naming the cause.
+        let mut ops = FakeOps {
+            checks: vec![check("ptrace_scope (autopatch)", State::Fail)],
+            checks_after_prepare: Some(vec![check("ptrace_scope (autopatch)", State::Fail)]),
+            ..ready_ops()
+        };
+        let st = state();
+        assert!(!run_sequence(&mut ops, &st));
+        assert_eq!(ops.game_started, 0);
+        let failure = st.lock().failure.clone().unwrap();
+        assert!(failure.contains("still failing"), "{failure}");
+    }
+
+    #[test]
+    fn client_files_failure_stops_the_launch() {
+        let mut ops = FakeOps {
+            client_files: Some(Err("cannot write openfut.cfg".into())),
+            ..ready_ops()
+        };
+        let st = state();
+        assert!(!run_sequence(&mut ops, &st));
+        assert_eq!(ops.game_started, 0);
+        assert!(ops.started.is_empty());
+    }
+
+    #[test]
+    fn cleanup_never_stops_a_service_the_launcher_did_not_start() {
+        let foreign = ServiceRuntime {
+            running: true,
+            started_by_launcher: false,
+            pid: Some(4242),
+            detail: None,
+        };
+        let ours = ServiceRuntime {
+            running: true,
+            started_by_launcher: true,
+            pid: Some(99),
+            detail: None,
+        };
+        let runtimes = [(Service::Lsx, foreign), (Service::Autopatch, ours)];
+
+        // Even under the most aggressive policy, a foreign service is untouched.
+        let aggressive = CleanupPolicy {
+            stop_launcher_started_services: true,
+        };
+        assert_eq!(
+            services_to_stop(aggressive, &runtimes),
+            vec![Service::Autopatch]
+        );
+
+        // And the shipped policy keeps both alive for the next launch.
+        assert!(services_to_stop(CleanupPolicy::default(), &runtimes).is_empty());
+    }
+
+    #[test]
+    fn readiness_is_never_green_while_a_dependency_is_not() {
+        assert_eq!(
+            overall(
+                Phase::Idle,
+                Readiness::Ready,
+                Readiness::Ready,
+                Readiness::Attention,
+                Readiness::Ready
+            ),
+            Readiness::Attention
+        );
+        // Never checked is not the same as checked and fine.
+        assert_eq!(
+            overall(
+                Phase::Idle,
+                Readiness::Ready,
+                Readiness::Unknown,
+                Readiness::Ready,
+                Readiness::Ready
+            ),
+            Readiness::Unknown
+        );
+        assert_eq!(
+            overall(
+                Phase::Idle,
+                Readiness::Ready,
+                Readiness::Ready,
+                Readiness::Ready,
+                Readiness::Ready
+            ),
+            Readiness::Ready
+        );
+        // A running game reports Ready even though a launch is not in flight.
+        assert_eq!(
+            overall(
+                Phase::Running,
+                Readiness::Unknown,
+                Readiness::Unknown,
+                Readiness::Unknown,
+                Readiness::Unknown
+            ),
+            Readiness::Ready
+        );
+    }
+
+    #[test]
+    fn client_integration_is_unknown_until_checks_have_run() {
+        let mut st = LaunchState::default();
+        assert_eq!(client_integration(&st), Readiness::Unknown);
+
+        st.checks = Some(vec![check("ptrace_scope (autopatch)", State::Fail)]);
+        assert_eq!(client_integration(&st), Readiness::Attention);
+
+        st.checks = Some(vec![check("ptrace_scope (autopatch)", State::Pass)]);
+        assert_eq!(client_integration(&st), Readiness::Ready);
+
+        // Only skipped checks means nothing was actually verified.
+        st.checks = Some(vec![check("ptrace_scope (autopatch)", State::Skipped)]);
+        assert_eq!(client_integration(&st), Readiness::Unknown);
+    }
+}

src/local_services.rs

@@ -0,0 +1,798 @@
+//! FIFA 17 local companion services — LSX (Origin emulator) + autopatch
+//! (ProtoSSL cert-verify memory patcher). Both are inherently local to the game
+//! machine and are managed by the launcher as child processes, mirroring the way
+//! `setup::launch_game` spawns and log-streams the game.
+//!
+//! WHY THESE TWO ARE LOCAL (and the rest is not): the heavy FUT responders
+//! (Blaze / UTAS / roster / POW) run in the server container. LSX must stay here
+//! because the game dials it on the hardcoded loopback `127.0.0.1:4216`;
+//! autopatch must stay here because it writes `/proc/<FIFA17.exe>/mem`.
+//!
+//! Lifecycle: each service is a long-running daemon. We keep the `Child` handle
+//! so the UI can show running/stopped and stop them. Both run as the launcher
+//! user after host arming sets `ptrace_scope=0`; this avoids an asynchronous
+//! Polkit prompt delaying cert patching until after FIFA's first TLS attempt.
+
+use parking_lot::Mutex;
+use std::{
+    net::{Ipv4Addr, SocketAddr, SocketAddrV4, TcpListener},
+    path::{Path, PathBuf},
+    process::{Child, Command, Stdio},
+    sync::{mpsc, Arc},
+    time::{Duration, Instant},
+};
+
+#[cfg(unix)]
+use std::os::unix::process::CommandExt;
+
+use crate::fifa17_capability::{
+    parse_capability_line, parse_fifa_pid, register, Fifa17ClientCapabilities,
+};
+use crate::logs::LogBuffer;
+
+/// The loopback endpoint LSX must own. FIFA dials this exact address and nothing
+/// else, so "is LSX ready?" is answerable without asking LSX anything.
+pub const LSX_ADDR: SocketAddr = SocketAddr::V4(SocketAddrV4::new(Ipv4Addr::LOCALHOST, 4216));
+
+#[derive(Debug, PartialEq, Eq)]
+struct CommandParts {
+    program: String,
+    args: Vec<String>,
+}
+
+/// Which companion service. The `str` values are used in log prefixes.
+#[derive(Copy, Clone, Debug, PartialEq, Eq)]
+pub enum Service {
+    /// LSX Origin/EADesktop emulator — binds loopback 4216, unprivileged.
+    Lsx,
+    /// autopatch — patches FIFA17.exe process memory after host ptrace arming.
+    Autopatch,
+}
+
+impl Service {
+    pub fn label(self) -> &'static str {
+        match self {
+            Service::Lsx => "LSX",
+            Service::Autopatch => "autopatch",
+        }
+    }
+
+    /// The companion's executable name.
+    ///
+    /// These were Python responder scripts run through a configured interpreter. They
+    /// are now Rust binaries built from this workspace (`openfut-lsx`,
+    /// `openfut-autopatch`), which removes the interpreter and the tools directory
+    /// from the launch contract entirely: no `python3` to locate, no script path to
+    /// configure, and no chance of running a stale checkout's copy.
+    fn binary(self) -> &'static str {
+        match self {
+            Service::Lsx => "openfut-lsx",
+            Service::Autopatch => "openfut-autopatch",
+        }
+    }
+}
+
+/// Absolute path to a companion binary.
+///
+/// Prefers a sibling of the running launcher, which is what a workspace build and any
+/// sane install layout both produce, and falls back to the bare name so a
+/// PATH-installed binary still works. Returning the bare name rather than failing
+/// keeps `spawn` responsible for reporting a missing binary, with one error message
+/// instead of two.
+fn resolve_binary(service: Service) -> PathBuf {
+    let base = service.binary();
+    // On Windows the built companion is `openfut-lsx.exe`; a bare name without the
+    // extension matches neither the sibling file nor CreateProcess resolution.
+    #[cfg(windows)]
+    let name = format!("{base}.exe");
+    #[cfg(unix)]
+    let name = base.to_string();
+    if let Some(dir) = std::env::current_exe()
+        .ok()
+        .and_then(|p| p.parent().map(Path::to_path_buf))
+    {
+        let sibling = dir.join(&name);
+        if sibling.is_file() {
+            return sibling;
+        }
+    }
+    PathBuf::from(name)
+}
+
+fn command_parts(service: Service) -> CommandParts {
+    let mut args = Vec::new();
+    if service == Service::Autopatch {
+        // autopatch exits when the launcher does, so it cannot outlive its owner and
+        // keep writing to a client the launcher no longer manages.
+        args.extend(["--launcher-pid".to_string(), std::process::id().to_string()]);
+    }
+    CommandParts {
+        program: resolve_binary(service).to_string_lossy().into_owned(),
+        args,
+    }
+}
+
+fn dispatch_stop_work<F>(work: F) -> mpsc::Receiver<anyhow::Result<()>>
+where
+    F: FnOnce() -> anyhow::Result<()> + Send + 'static,
+{
+    let (send, receive) = mpsc::channel();
+    std::thread::spawn(move || {
+        let _ = send.send(work());
+    });
+    receive
+}
+
+fn wait_for_listener_ready(
+    child: &mut Child,
+    address: SocketAddr,
+    timeout: Duration,
+) -> anyhow::Result<()> {
+    let deadline = Instant::now() + timeout;
+    // Let immediate startup/bind errors surface before accepting an occupied
+    // port as evidence that this child became ready.
+    std::thread::sleep(Duration::from_millis(100));
+    loop {
+        if let Some(status) = child
+            .try_wait()
+            .map_err(|error| anyhow::anyhow!("could not inspect LSX startup: {error}"))?
+        {
+            anyhow::bail!("LSX exited before becoming ready ({status}); port 4216 may be in use");
+        }
+        match TcpListener::bind(address) {
+            Err(error) if error.kind() == std::io::ErrorKind::AddrInUse => return Ok(()),
+            Err(error) => anyhow::bail!("could not probe LSX listener {address}: {error}"),
+            Ok(listener) => drop(listener),
+        }
+        if Instant::now() >= deadline {
+            anyhow::bail!(
+                "LSX did not bind {address} within {} ms",
+                timeout.as_millis()
+            );
+        }
+        std::thread::sleep(Duration::from_millis(50));
+    }
+}
+
+/// A managed companion service process.
+#[derive(Default)]
+pub struct ManagedService {
+    child: Option<Child>,
+    stopping: Option<mpsc::Receiver<anyhow::Result<()>>>,
+}
+
+impl ManagedService {
+    /// Wrap an already-spawned child.
+    pub fn from_child(child: Child) -> Self {
+        Self {
+            child: Some(child),
+            stopping: None,
+        }
+    }
+
+    /// True while the child is spawned and has not yet exited. Reaps the exit
+    /// status if it has, so the UI reflects a service that died on its own.
+    pub fn running(&mut self, log: &Arc<Mutex<LogBuffer>>, label: &str) -> bool {
+        if let Some(result) = self.stopping.as_ref() {
+            match result.try_recv() {
+                Ok(Ok(())) => {
+                    log.lock().push(format!("[launcher] {label} stopped."));
+                    self.stopping = None;
+                    return false;
+                }
+                Ok(Err(error)) => {
+                    log.lock()
+                        .push(format!("[launcher] failed to stop {label}: {error}"));
+                    self.stopping = None;
+                    return false;
+                }
+                Err(mpsc::TryRecvError::Empty) => return true,
+                Err(mpsc::TryRecvError::Disconnected) => {
+                    log.lock().push(format!(
+                        "[launcher] {label} stop worker exited unexpectedly."
+                    ));
+                    self.stopping = None;
+                    return false;
+                }
+            }
+        }
+
+        match self.child.as_mut() {
+            None => false,
+            Some(c) => match c.try_wait() {
+                Ok(None) => true,
+                Ok(Some(status)) => {
+                    log.lock()
+                        .push(format!("[launcher] {label} exited ({status})."));
+                    self.child = None;
+                    false
+                }
+                Err(_) => true,
+            },
+        }
+    }
+
+    pub fn stopping(&self) -> bool {
+        self.stopping.is_some()
+    }
+
+    /// PID of the child this launcher owns, if it owns one.
+    pub fn pid(&self) -> Option<u32> {
+        self.child.as_ref().map(Child::id)
+    }
+
+    /// Begin stopping the service without waiting on the egui UI thread.
+    pub fn stop(&mut self, log: &Arc<Mutex<LogBuffer>>, service: Service) {
+        if self.stopping.is_some() {
+            return;
+        }
+        if let Some(mut child) = self.child.take() {
+            let label = service.label();
+            log.lock().push(format!("[launcher] stopping {label}…"));
+
+            self.stopping = Some(dispatch_stop_work(move || {
+                child
+                    .kill()
+                    .map_err(|error| anyhow::anyhow!("kill failed: {error}"))?;
+
+                child
+                    .wait()
+                    .map_err(|error| anyhow::anyhow!("reap failed: {error}"))?;
+                Ok(())
+            }));
+        }
+    }
+}
+
+impl Drop for ManagedService {
+    fn drop(&mut self) {
+        if let Some(mut c) = self.child.take() {
+            let _ = c.kill();
+        }
+    }
+}
+
+/// Backend-registration wiring handed to the autopatch stdout reader so a
+/// verified resolver-guard line can advertise the per-FIFA-process capability to
+/// the backend. `Some(..)` for autopatch; `None` for LSX.
+pub struct CapabilityWiring {
+    pub server_host: String,
+    pub account_sync_port: u16,
+    pub sink: Arc<Mutex<Fifa17ClientCapabilities>>,
+}
+
+/// What is actually true about one companion service right now.
+///
+/// Deliberately observed, never remembered: a button press is not evidence that
+/// a service is up, and a service that died on its own must not keep showing
+/// green because the launcher once started it successfully.
+#[derive(Debug, Clone, PartialEq, Eq, Default)]
+pub struct ServiceRuntime {
+    pub running: bool,
+    /// True only while THIS launcher owns the live process. Decides whether
+    /// cleanup is allowed to touch it: a service someone started by hand for a
+    /// debugging session must survive a launch/exit cycle.
+    pub started_by_launcher: bool,
+    pub pid: Option<u32>,
+    /// Observed supporting detail for the Advanced panel. Only ever facts the
+    /// launcher actually established.
+    pub detail: Option<String>,
+}
+
+impl ServiceRuntime {
+    /// Whether this service is usable for a launch, as opposed to merely alive.
+    /// For LSX that means the port FIFA dials is genuinely held.
+    pub fn ready(&self) -> bool {
+        self.running
+    }
+}
+
+/// True when something holds LSX's fixed loopback port.
+pub fn lsx_port_busy() -> bool {
+    match TcpListener::bind(LSX_ADDR) {
+        Err(error) => error.kind() == std::io::ErrorKind::AddrInUse,
+        Ok(listener) => {
+            drop(listener);
+            false
+        }
+    }
+}
+
+/// PID of a process running `service`'s companion binary that this launcher does
+/// not own, if there is one.
+///
+/// Scans `/proc` — no extra dependency, no privilege, and no guessing: a service
+/// left running by a previous launcher instance or started by hand from a shell
+/// is a real state the UI has to be able to report, and cleanup has to respect.
+///
+/// Matches argv entries rather than `comm`, because `comm` is truncated to 15
+/// characters by the kernel and would misreport these names.
+pub fn foreign_pid(service: Service, ours: Option<u32>) -> Option<u32> {
+    let binary = service.binary();
+    let self_pid = std::process::id();
+    let entries = std::fs::read_dir("/proc").ok()?;
+    for entry in entries.flatten() {
+        let Ok(pid) = entry.file_name().to_string_lossy().parse::<u32>() else {
+            continue;
+        };
+        if pid == self_pid || Some(pid) == ours {
+            continue;
+        }
+        let Ok(cmdline) = std::fs::read(entry.path().join("cmdline")) else {
+            continue;
+        };
+        if cmdline.split(|b| *b == 0).any(|arg| {
+            // Compare the file name, so `/path/to/openfut-lsx` matches while an
+            // unrelated argument that merely ends with the same text does not.
+            Path::new(&*String::from_utf8_lossy(arg))
+                .file_name()
+                .is_some_and(|n| n == binary)
+        }) {
+            return Some(pid);
+        }
+    }
+    None
+}
+
+/// Whether a stop request may touch this service.
+///
+/// Pure, so the ownership rule is testable without a process: refusing to kill
+/// something the launcher did not start is the whole reason ownership is tracked,
+/// and it must not depend on what happens to be running on the test machine.
+pub fn stop_permitted(runtime: &ServiceRuntime, label: &str) -> Result<(), String> {
+    if runtime.running && !runtime.started_by_launcher {
+        return Err(format!(
+            "{label} was started outside this launcher{} — stop it where it was started.",
+            match runtime.pid {
+                Some(pid) => format!(" (pid {pid})"),
+                None => String::new(),
+            }
+        ));
+    }
+    Ok(())
+}
+
+/// Owns both companion services and answers "what is running, and who started
+/// it?" for the whole launcher.
+///
+/// Exists so the launch sequence and the Advanced panel act on the same objects.
+/// Two independent copies of that state is how a UI ends up claiming Ready while
+/// the process is dead.
+pub struct ServiceSupervisor {
+    lsx: ManagedService,
+    autopatch: ManagedService,
+    log: Arc<Mutex<LogBuffer>>,
+}
+
+/// Whether [`ServiceSupervisor::ensure_running`] had to do anything.
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum Ensured {
+    /// Already up — left strictly alone.
+    Reused,
+    Started,
+}
+
+impl ServiceSupervisor {
+    pub fn new(log: Arc<Mutex<LogBuffer>>) -> Self {
+        Self {
+            lsx: ManagedService::default(),
+            autopatch: ManagedService::default(),
+            log,
+        }
+    }
+
+    fn slot(&mut self, service: Service) -> &mut ManagedService {
+        match service {
+            Service::Lsx => &mut self.lsx,
+            Service::Autopatch => &mut self.autopatch,
+        }
+    }
+
+    /// Observe one service: our own child first, then any foreign instance.
+    pub fn observe(&mut self, service: Service) -> ServiceRuntime {
+        let log = Arc::clone(&self.log);
+        let slot = self.slot(service);
+        if slot.stopping() {
+            return ServiceRuntime {
+                running: true,
+                started_by_launcher: true,
+                pid: None,
+                detail: Some("stopping".into()),
+            };
+        }
+        let ours = slot.pid();
+        if slot.running(&log, service.label()) {
+            let mut runtime = ServiceRuntime {
+                running: true,
+                started_by_launcher: true,
+                pid: ours,
+                detail: None,
+            };
+            if service == Service::Lsx {
+                runtime.detail = Some(if lsx_port_busy() {
+                    format!("holding {LSX_ADDR}")
+                } else {
+                    // Alive but not listening: real, and not "ready".
+                    runtime.running = false;
+                    format!("process alive but {LSX_ADDR} is not held")
+                });
+            }
+            return runtime;
+        }
+
+        match foreign_pid(service, ours) {
+            Some(pid) => ServiceRuntime {
+                running: true,
+                started_by_launcher: false,
+                pid: Some(pid),
+                detail: Some("started outside this launcher".into()),
+            },
+            None if service == Service::Lsx && lsx_port_busy() => ServiceRuntime {
+                running: false,
+                started_by_launcher: false,
+                pid: None,
+                detail: Some(format!("{LSX_ADDR} is held by an unrelated process")),
+            },
+            None => ServiceRuntime::default(),
+        }
+    }
+
+    /// Start `service` only if it is not already usable. Never restarts a healthy
+    /// service, and never adopts a foreign one as ours.
+    pub fn ensure_running(&mut self, service: Service, spec: SpawnSpec) -> Result<Ensured, String> {
+        // On Windows the ProtoSSL cert-verify patch (autopatch's job on unix, via
+        // /proc/PID/mem) is performed in-process by the version.dll hook, so there
+        // is no autopatch process to run. LSX is different: the game dials it on
+        // 127.0.0.1:4216, so it MUST run locally here exactly as on unix.
+        #[cfg(windows)]
+        if service == Service::Autopatch {
+            self.log.lock().push(
+                "[launcher] autopatch runs in-process on Windows (version.dll hook) — nothing to start."
+                    .to_string(),
+            );
+            return Ok(Ensured::Reused);
+        }
+        let runtime = self.observe(service);
+        if runtime.ready() {
+            self.log.lock().push(format!(
+                "[launcher] {} already running{} — reusing it.",
+                service.label(),
+                match runtime.pid {
+                    Some(pid) => format!(" (pid {pid})"),
+                    None => String::new(),
+                }
+            ));
+            return Ok(Ensured::Reused);
+        }
+        if let Some(detail) = runtime.detail.filter(|_| !runtime.running) {
+            // No service-name prefix: every caller already renders the service it
+            // asked about, and the launch card would print "LSX: LSX: …".
+            return Err(detail);
+        }
+        let child = spawn(
+            service,
+            spec.persona_id,
+            &spec.persona_name,
+            spec.capability,
+            Arc::clone(&self.log),
+        )
+        .map_err(|e| e.to_string())?;
+        *self.slot(service) = ManagedService::from_child(child);
+        Ok(Ensured::Started)
+    }
+
+    /// Stop a service the launcher owns. A foreign process is reported, never
+    /// killed: the launcher did not start it and does not know who needs it.
+    pub fn stop(&mut self, service: Service) -> Result<(), String> {
+        let runtime = self.observe(service);
+        stop_permitted(&runtime, service.label())?;
+        let log = Arc::clone(&self.log);
+        self.slot(service).stop(&log, service);
+        Ok(())
+    }
+
+    pub fn stopping(&mut self, service: Service) -> bool {
+        self.slot(service).stopping()
+    }
+}
+
+/// Everything [`spawn`] needs, bundled so the launch sequence can hand it over
+/// as one value per service.
+pub struct SpawnSpec {
+    pub persona_id: u64,
+    pub persona_name: String,
+    pub capability: Option<CapabilityWiring>,
+}
+
+/// Spawn a companion service and stream its stdout+stderr into `log`.
+///
+/// Returns an error without spawning if the binary is missing, which is the only
+/// precondition left now that the companions are workspace binaries rather than
+/// Python scripts run from a configured tools directory.
+///
+/// `capability` is the backend-registration wiring + shared per-FIFA-process
+/// capability sink — `Some(..)` for autopatch (whose stdout advertises the
+/// verified resolver guard) and `None` for LSX.
+pub fn spawn(
+    service: Service,
+    persona_id: u64,
+    persona_name: &str,
+    capability: Option<CapabilityWiring>,
+    log: Arc<Mutex<LogBuffer>>,
+) -> anyhow::Result<Child> {
+    use std::io::{BufRead, BufReader};
+
+    let label = service.label();
+    let parts = command_parts(service);
+    let program = Path::new(&parts.program);
+    // Only a resolved absolute path can be checked up front; a bare name is left to
+    // the OS to resolve through PATH, and a failure there is reported by spawn below.
+    if program.is_absolute() && !program.is_file() {
+        anyhow::bail!(
+            "{label} binary not found: {} — build the workspace so it sits beside the launcher",
+            program.display()
+        );
+    }
+
+    let mut cmd = Command::new(&parts.program);
+    cmd.args(&parts.args);
+    if service == Service::Lsx {
+        // The persona LSX reports has to equal what Blaze returns in
+        // LoginResponse.SESS.PDTL and what UTAS serves as userInfo.personaId; the
+        // constraint is cross-layer agreement, not any particular value.
+        cmd.env("FUT_PERSONA_ID", persona_id.to_string())
+            .env("FUT_PERSONA_NAME", persona_name);
+    } else if service == Service::Autopatch {
+        // A per-user runtime log, so a stale root-owned /tmp file cannot block startup.
+        let log_path = std::env::var_os("XDG_RUNTIME_DIR")
+            .map(std::path::PathBuf::from)
+            .unwrap_or_else(std::env::temp_dir)
+            .join("openfut-autopatch.log");
+        cmd.env("OPENFUT_AUTOPATCH_LOG", log_path);
+    }
+    // Put each companion in its own process group for lifecycle isolation.
+    #[cfg(unix)]
+    cmd.process_group(0);
+    cmd.stdout(Stdio::piped()).stderr(Stdio::piped());
+
+    log.lock().push(format!(
+        "[launcher] starting {label}: {}{}",
+        parts.program,
+        parts.args.iter().fold(String::new(), |mut acc, a| {
+            acc.push(' ');
+            acc.push_str(a);
+            acc
+        }),
+    ));
+
+    let mut child = cmd
+        .spawn()
+        .map_err(|e| anyhow::anyhow!("failed to start {label} ({}): {e}", service.binary()))?;
+
+    if let Some(out) = child.stdout.take() {
+        let buf = Arc::clone(&log);
+        let lbl = label.to_string();
+        // Only autopatch carries capability wiring; LSX passes `None`.
+        let cap_wiring = capability;
+        let cap_persona = persona_id;
+        std::thread::spawn(move || {
+            // Fires the backend registration at most once per FIFA process.
+            let mut registered = false;
+            for line in BufReader::new(out).lines().map_while(Result::ok) {
+                // Every raw line is still mirrored into the log, as before.
+                buf.lock().push(format!("[{lbl}] {line}"));
+
+                let Some(wiring) = cap_wiring.as_ref() else {
+                    continue;
+                };
+                if registered {
+                    continue;
+                }
+                let Some(version) = parse_capability_line(&line) else {
+                    continue;
+                };
+                registered = true;
+                let fifa_pid = parse_fifa_pid(&line).unwrap_or(0);
+                wiring.sink.lock().empty_mypacks_resolver = Some(version);
+                {
+                    let mut log = buf.lock();
+                    log.push(format!(
+                        "[fifa17] resolver capability verified for FIFA pid {fifa_pid}"
+                    ));
+                    log.push(format!(
+                        "[fifa17] registering capability for session (persona {cap_persona})"
+                    ));
+                }
+                match register(
+                    &wiring.server_host,
+                    wiring.account_sync_port,
+                    cap_persona,
+                    fifa_pid,
+                    version,
+                ) {
+                    Ok(()) => buf
+                        .lock()
+                        .push("[fifa17] capability registered with backend".to_string()),
+                    Err(error) => buf
+                        .lock()
+                        .push(format!("[fifa17] capability registration failed: {error}")),
+                }
+            }
+        });
+    }
+    if let Some(err) = child.stderr.take() {
+        let buf = Arc::clone(&log);
+        let lbl = label.to_string();
+        std::thread::spawn(move || {
+            for line in BufReader::new(err).lines().map_while(Result::ok) {
+                buf.lock().push(format!("[{lbl}] {line}"));
+            }
+        });
+    }
+
+    if service == Service::Lsx {
+        let address = LSX_ADDR;
+        if let Err(error) = wait_for_listener_ready(&mut child, address, Duration::from_secs(3)) {
+            let _ = child.kill();
+            let _ = child.wait();
+            return Err(error);
+        }
+        log.lock()
+            .push("[launcher] LSX ready on 127.0.0.1:4216".to_string());
+    }
+
+    Ok(child)
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn lsx_runs_its_own_binary_with_no_arguments() {
+        let parts = command_parts(Service::Lsx);
+        assert_eq!(
+            Path::new(&parts.program).file_name().unwrap(),
+            "openfut-lsx"
+        );
+        assert!(parts.args.is_empty(), "{:?}", parts.args);
+    }
+
+    #[test]
+    fn autopatch_runs_its_own_binary_with_launcher_ownership() {
+        let parts = command_parts(Service::Autopatch);
+        assert_eq!(
+            Path::new(&parts.program).file_name().unwrap(),
+            "openfut-autopatch"
+        );
+        // The launcher pid is how autopatch learns to exit with its owner.
+        assert_eq!(
+            parts.args,
+            vec!["--launcher-pid", &std::process::id().to_string()]
+        );
+    }
+
+    #[test]
+    fn a_companion_binary_is_looked_up_by_file_name_not_a_suffix_match() {
+        // Guards the foreign-process scan: an argv entry that merely ends with the
+        // binary name (a log path, say) must not be mistaken for the service.
+        assert_eq!(Service::Lsx.binary(), "openfut-lsx");
+        assert_eq!(Service::Autopatch.binary(), "openfut-autopatch");
+        assert_eq!(
+            Path::new("/var/log/my-openfut-lsx").file_name().unwrap(),
+            "my-openfut-lsx"
+        );
+    }
+
+    #[test]
+    fn stop_work_is_dispatched_without_blocking_the_caller() {
+        use std::time::{Duration, Instant};
+
+        let started = Instant::now();
+        let done = dispatch_stop_work(|| {
+            std::thread::sleep(Duration::from_millis(250));
+            Ok(())
+        });
+
+        assert!(started.elapsed() < Duration::from_millis(100));
+        assert!(done.try_recv().is_err());
+        assert!(done.recv_timeout(Duration::from_secs(1)).unwrap().is_ok());
+    }
+
+    #[test]
+    fn readiness_rejects_an_lsx_child_that_exits_before_binding() {
+        let mut child = Command::new("sh")
+            .args(["-c", "exit 7"])
+            .spawn()
+            .expect("spawn short-lived child");
+        let address = SocketAddr::V4(SocketAddrV4::new(Ipv4Addr::LOCALHOST, 0));
+        let error = wait_for_listener_ready(&mut child, address, Duration::from_secs(1))
+            .expect_err("exited child must not be reported ready");
+        assert!(error.to_string().contains("exited before becoming ready"));
+    }
+
+    fn supervisor() -> ServiceSupervisor {
+        ServiceSupervisor::new(Arc::new(Mutex::new(LogBuffer::new())))
+    }
+
+    #[test]
+    fn a_service_this_launcher_never_started_is_never_reported_as_ours() {
+        // The old model only knew about children it spawned, so it could not tell
+        // "stopped" from "running, but not mine". Note this box may genuinely have
+        // a foreign responder running — that is a real observation, and the
+        // invariant is about ownership, not about it being absent.
+        let mut sup = supervisor();
+        let runtime = sup.observe(Service::Autopatch);
+        assert!(
+            !runtime.started_by_launcher,
+            "nothing was spawned here, so nothing may claim launcher ownership"
+        );
+    }
+
+    #[test]
+    fn a_launcher_owned_child_is_observed_as_ours_and_reaped_when_it_dies() {
+        let mut sup = supervisor();
+        let child = Command::new("sh")
+            .args(["-c", "sleep 30"])
+            .spawn()
+            .expect("spawn long-lived child");
+        let pid = child.id();
+        sup.autopatch = ManagedService::from_child(child);
+
+        let runtime = sup.observe(Service::Autopatch);
+        assert!(runtime.running);
+        assert!(runtime.started_by_launcher, "we spawned it");
+        assert_eq!(runtime.pid, Some(pid));
+
+        // Stopping is allowed precisely because it is ours.
+        sup.stop(Service::Autopatch).expect("ours to stop");
+    }
+
+    #[test]
+    fn stopping_a_foreign_service_is_refused_rather_than_killing_it() {
+        // A service someone started by hand for a debugging session must survive a
+        // launch/exit cycle, and the refusal has to say where to stop it. Asserted
+        // on the pure rule so it holds regardless of what this machine is running.
+        let foreign = ServiceRuntime {
+            running: true,
+            started_by_launcher: false,
+            pid: Some(4242),
+            detail: None,
+        };
+        let error = stop_permitted(&foreign, "autopatch").unwrap_err();
+        assert!(error.contains("started outside this launcher"), "{error}");
+        assert!(error.contains("4242"), "{error}");
+
+        let ours = ServiceRuntime {
+            running: true,
+            started_by_launcher: true,
+            pid: Some(99),
+            detail: None,
+        };
+        assert!(stop_permitted(&ours, "autopatch").is_ok());
+        // Stopping something that is not running is a harmless no-op.
+        assert!(stop_permitted(&ServiceRuntime::default(), "autopatch").is_ok());
+
+        assert!(
+            crate::launch::services_to_stop(
+                crate::launch::CleanupPolicy {
+                    stop_launcher_started_services: true,
+                },
+                &[(Service::Autopatch, foreign)],
+            )
+            .is_empty(),
+            "a foreign service is never in the stop list"
+        );
+    }
+
+    #[test]
+    fn foreign_pid_ignores_the_launcher_process_itself() {
+        // The scan matches on the responder script name; this process is not one,
+        // and must never be reported as a service.
+        assert_ne!(foreign_pid(Service::Lsx, None), Some(std::process::id()));
+        assert_ne!(
+            foreign_pid(Service::Autopatch, None),
+            Some(std::process::id())
+        );
+    }
+}

src/main.rs

@@ -1,15 +1,30 @@
+mod account_monitor;
+mod account_sync;
 mod app;
+mod arm;
 mod config;
+mod fifa17_capability;
+mod game_launch;
+mod health;
+mod launch;
+mod local_services;
 mod logs;
-mod process;
+mod netcheck;
+mod preflight;
 mod setup;
+mod theme;
 
 fn main() -> eframe::Result<()> {
     let options = eframe::NativeOptions {
         viewport: egui::ViewportBuilder::default()
             .with_title("OpenFUT Launcher")
-            .with_inner_size([780.0, 560.0])
-            .with_min_inner_size([600.0, 400.0]),
+            .with_app_id("openfut-launcher")
+            .with_icon(app_icon())
+            .with_inner_size([1040.0, 720.0])
+            .with_min_inner_size([880.0, 600.0]),
+        // Pair vsync with the display's VRR (G-Sync + Vsync is the recommended
+        // combination): frames present on the monitor's own variable refresh.
+        vsync: true,
         ..Default::default()
     };
 
@@ -19,3 +34,88 @@ fn main() -> eframe::Result<()> {
         Box::new(|cc| Ok(Box::new(app::LauncherApp::new(cc)))),
     )
 }
+
+/// The application / taskbar icon: the same "OF" monogram the header wordmark
+/// shows, drawn white on the signature accent tile. Generated in code (no PNG
+/// dependency) at 4x supersampling and box-downsampled to a crisp 64x64 RGBA —
+/// scales cleanly to the 32x32 the WM typically renders. Colours come from the
+/// theme palette so the icon never drifts from the in-app brand.
+fn app_icon() -> egui::IconData {
+    const SIZE: usize = 64; // output edge
+    const SS: usize = 4; // supersampling factor
+
+    let accent = theme::ACCENT;
+    let fg = theme::ON_ACCENT;
+
+    // Rounded-square background: point inside the [0,SIZE]² square with corners
+    // rounded to `round_r` (transparent outside, so the icon reads as a tile).
+    let round_r = 13.0_f32;
+    let inside_bg = |x: f32, y: f32| -> bool {
+        let s = SIZE as f32;
+        let cx = x.clamp(round_r, s - round_r);
+        let cy = y.clamp(round_r, s - round_r);
+        let (dx, dy) = (x - cx, y - cy);
+        dx * dx + dy * dy <= round_r * round_r
+    };
+
+    // "O" — an elliptical ring on the left.
+    let inside_o = |x: f32, y: f32| -> bool {
+        let (cx, cy) = (21.0_f32, 32.0_f32);
+        let (dx, dy) = (x - cx, y - cy);
+        let outer = (dx / 9.0).powi(2) + (dy / 14.0).powi(2) <= 1.0;
+        let inner = (dx / 4.8).powi(2) + (dy / 9.5).powi(2) < 1.0;
+        outer && !inner
+    };
+
+    // "F" — a stem plus a top and middle bar on the right.
+    let inside_f = |x: f32, y: f32| -> bool {
+        let stem = (34.0..=39.0).contains(&x) && (18.0..=46.0).contains(&y);
+        let top = (34.0..=52.0).contains(&x) && (18.0..=23.0).contains(&y);
+        let mid = (34.0..=48.0).contains(&x) && (29.5..=34.0).contains(&y);
+        stem || top || mid
+    };
+
+    // Premultiplied-alpha accumulation per output pixel so antialiased edges
+    // (both the rounded tile and the letters) never fringe dark.
+    let mut rgba = vec![0u8; SIZE * SIZE * 4];
+    for oy in 0..SIZE {
+        for ox in 0..SIZE {
+            let (mut ar, mut ag, mut ab, mut aa) = (0.0_f32, 0.0_f32, 0.0_f32, 0.0_f32);
+            for sy in 0..SS {
+                for sx in 0..SS {
+                    let x = ox as f32 + (sx as f32 + 0.5) / SS as f32;
+                    let y = oy as f32 + (sy as f32 + 0.5) / SS as f32;
+                    let (r, g, b, a) = if inside_o(x, y) || inside_f(x, y) {
+                        (fg.r(), fg.g(), fg.b(), 255u16)
+                    } else if inside_bg(x, y) {
+                        (accent.r(), accent.g(), accent.b(), 255u16)
+                    } else {
+                        (0, 0, 0, 0)
+                    };
+                    let af = a as f32 / 255.0;
+                    ar += r as f32 * af;
+                    ag += g as f32 * af;
+                    ab += b as f32 * af;
+                    aa += af;
+                }
+            }
+            let samples = (SS * SS) as f32;
+            let idx = (oy * SIZE + ox) * 4;
+            let (r, g, b) = if aa > 0.0 {
+                (ar / aa, ag / aa, ab / aa)
+            } else {
+                (0.0, 0.0, 0.0)
+            };
+            rgba[idx] = r.round() as u8;
+            rgba[idx + 1] = g.round() as u8;
+            rgba[idx + 2] = b.round() as u8;
+            rgba[idx + 3] = (aa / samples * 255.0).round() as u8;
+        }
+    }
+
+    egui::IconData {
+        rgba,
+        width: SIZE as u32,
+        height: SIZE as u32,
+    }
+}

src/netcheck.rs

@@ -0,0 +1,77 @@
+//! "Test Connection" support: verify the configured OpenFUT server is actually
+//! reachable before the user launches FIFA.
+//!
+//! This resolves the configured host through the SAME shared path the hook uses
+//! ([`openfut_common::ServerConfig::resolve`]) and then does a bounded TCP
+//! connect to the OpenFUT destination port(s). It never falls back to loopback:
+//! if the server isn't configured/resolvable, it reports that plainly.
+
+use std::io::{Read, Write};
+use std::net::{SocketAddr, TcpStream};
+use std::time::Duration;
+
+use openfut_common::ServerConfig;
+
+const CONNECT_TIMEOUT: Duration = Duration::from_secs(3);
+
+/// Outcome of a connection test, suitable for showing in the UI.
+pub struct TestOutcome {
+    pub ok: bool,
+    pub message: String,
+}
+
+/// Resolve `cfg` and attempt to reach the OpenFUT server. Checks the HTTPS
+/// destination port (the one EA :443 traffic is redirected to) since that is the
+/// service the client relies on first. On success, also reports whether the core
+/// `/health` endpoint answered (best-effort; a plain-text probe, TLS not spoken).
+pub fn test_connection(cfg: &ServerConfig) -> TestOutcome {
+    let resolved = match cfg.resolve() {
+        Ok(r) => r,
+        Err(e) => {
+            return TestOutcome {
+                ok: false,
+                message: format!("Cannot resolve OpenFUT server: {e}"),
+            };
+        }
+    };
+
+    let addr = SocketAddr::from((resolved.redirect_ip, resolved.ports.https));
+    match TcpStream::connect_timeout(&addr, CONNECT_TIMEOUT) {
+        Ok(mut stream) => {
+            // Best-effort HTTP probe of /health. The bridge front door speaks
+            // TLS, so a plaintext request may not get a clean 200 — a successful
+            // TCP connect already proves reachability, so we don't fail on this.
+            let health = probe_health(&mut stream);
+            let detail = match health {
+                Some(true) => " (core /health responded OK)".to_string(),
+                _ => String::new(),
+            };
+            TestOutcome {
+                ok: true,
+                message: format!(
+                    "Reachable: {}:{} is accepting connections{detail}.",
+                    resolved.redirect_ip, resolved.ports.https
+                ),
+            }
+        }
+        Err(e) => TestOutcome {
+            ok: false,
+            message: format!(
+                "Could not reach {}:{} — {e}. Check the server is running and the \
+                 address/port are correct.",
+                resolved.redirect_ip, resolved.ports.https
+            ),
+        },
+    }
+}
+
+fn probe_health(stream: &mut TcpStream) -> Option<bool> {
+    let _ = stream.set_read_timeout(Some(CONNECT_TIMEOUT));
+    let _ = stream.set_write_timeout(Some(CONNECT_TIMEOUT));
+    let req = "GET /health HTTP/1.0\r\nConnection: close\r\n\r\n";
+    stream.write_all(req.as_bytes()).ok()?;
+    let mut buf = [0u8; 512];
+    let n = stream.read(&mut buf).ok()?;
+    let text = String::from_utf8_lossy(&buf[..n]);
+    Some(text.contains("200") || text.contains("\"status\""))
+}

src/preflight.rs

@@ -0,0 +1,500 @@
+//! Pre-launch checks for the client-side state FIFA depends on.
+//!
+//! # Why
+//!
+//! On 2026-08-11 the game machine rebooted. Everything `client_arm.sh` sets —
+//! `ptrace_scope=0`, the DNAT of EA's hardcoded redirector IP, the
+//! `easw.easports.com` mapping — is volatile and was silently gone. The launcher
+//! started, the local services started, the game started, and forty minutes later
+//! the only symptom was FIFA's own dialog: *"the servers for this title have been
+//! shut down"*. Nothing in the stack said anything, because nothing was looking.
+//!
+//! Every one of those conditions is observable **without privilege**. This module
+//! looks, and reports before the user clicks Launch.
+//!
+//! # Deliberately not checked here
+//!
+//! Certificate parity across the FIFA-facing TLS services — the fault that cost
+//! three redirector gates — is the single most valuable check available, but the
+//! launcher has no TLS dependency (`account_sync` speaks plaintext HTTP by hand)
+//! and adding one is a decision, not a detail. `scripts/check-tls-parity.sh` on
+//! the server covers it in the meantime.
+//!
+//! # Advisory, not a gate
+//!
+//! Results colour the UI; they never disable Launch. A preflight that is itself
+//! wrong must not be able to lock the user out of their own game.
+
+use std::net::{IpAddr, SocketAddr, TcpStream, ToSocketAddrs};
+use std::time::Duration;
+
+use crate::config::LauncherConfig;
+
+const PROBE_TIMEOUT: Duration = Duration::from_secs(2);
+#[cfg(unix)]
+const PTRACE_SCOPE: &str = "/proc/sys/kernel/yama/ptrace_scope";
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum State {
+    Pass,
+    /// Genuinely wrong, but something else in the stack covers it, so the game
+    /// can still work. Kept distinct from [`State::Fail`] because a checker that
+    /// cries "this will fail" and is then contradicted by a working game teaches
+    /// the user to ignore it — which is worse than not checking at all.
+    Warn,
+    Fail,
+    /// Not configured, so there is nothing to assert. Never reported as a pass:
+    /// "we did not look" and "we looked and it was fine" must not look alike.
+    Skipped,
+}
+
+#[derive(Debug, Clone)]
+pub struct Check {
+    pub name: String,
+    pub state: State,
+    pub detail: String,
+}
+
+impl Check {
+    fn pass(name: &str, detail: impl Into<String>) -> Self {
+        Self {
+            name: name.into(),
+            state: State::Pass,
+            detail: detail.into(),
+        }
+    }
+    fn fail(name: &str, detail: impl Into<String>) -> Self {
+        Self {
+            name: name.into(),
+            state: State::Fail,
+            detail: detail.into(),
+        }
+    }
+    fn warn(name: &str, detail: impl Into<String>) -> Self {
+        Self {
+            name: name.into(),
+            state: State::Warn,
+            detail: detail.into(),
+        }
+    }
+    fn skip(name: &str, detail: impl Into<String>) -> Self {
+        Self {
+            name: name.into(),
+            state: State::Skipped,
+            detail: detail.into(),
+        }
+    }
+}
+
+/// Run every applicable check. Order is the order the game exercises them.
+#[cfg(unix)]
+pub fn run(cfg: &LauncherConfig) -> Vec<Check> {
+    vec![
+        ptrace_scope(),
+        ea_redirect(cfg),
+        hostname_mapping(cfg),
+        backend_reachable(cfg),
+        hook_config(cfg),
+    ]
+}
+
+/// On native Windows the client-preparation checks (ptrace_scope, the EA
+/// redirector DNAT, `/etc/hosts`) do not apply: there is no host to arm and
+/// routing is entirely the `openfut.cfg` the hook reads. Only the two the game
+/// truly depends on remain: the backend is reachable and the deployed hook
+/// config agrees with the launcher's settings.
+#[cfg(windows)]
+pub fn run(cfg: &LauncherConfig) -> Vec<Check> {
+    vec![backend_reachable(cfg), hook_config(cfg)]
+}
+
+/// Checks that will stop the game working.
+pub fn failures(checks: &[Check]) -> usize {
+    checks.iter().filter(|c| c.state == State::Fail).count()
+}
+
+/// Checks that are wrong but survivable.
+pub fn warnings(checks: &[Check]) -> usize {
+    checks.iter().filter(|c| c.state == State::Warn).count()
+}
+
+/// autopatch writes to FIFA's process memory; Yama blocks that unless
+/// `ptrace_scope` is 0. At 1 the patch silently does nothing and the game fails
+/// its TLS handshake much later, with no message naming the cause.
+///
+/// Unconditional. autopatch is a workspace binary that ships alongside the
+/// launcher, so there is no configuration that could make this inapplicable —
+/// every launch runs it.
+#[cfg(unix)]
+fn ptrace_scope() -> Check {
+    const NAME: &str = "ptrace_scope (autopatch)";
+    match std::fs::read_to_string(PTRACE_SCOPE) {
+        Ok(v) => ptrace_verdict(&v),
+        // Not every kernel has Yama. Absent means unenforced, which is what we want.
+        Err(_) => Check::skip(NAME, "Yama not present on this kernel"),
+    }
+}
+
+/// The decision, split from the file read so it can be tested.
+///
+/// Reading `/proc` in a test would assert facts about the machine running the
+/// suite rather than about this code — and left inline, "any value is fine"
+/// was a mutation no test could catch.
+#[cfg(unix)]
+fn ptrace_verdict(raw: &str) -> Check {
+    const NAME: &str = "ptrace_scope (autopatch)";
+    let v = raw.trim();
+    if v == "0" {
+        Check::pass(NAME, "0 — autopatch can attach")
+    } else {
+        Check::fail(
+            NAME,
+            format!("{v} — autopatch cannot patch FIFA. Click 'Arm client'."),
+        )
+    }
+}
+
+/// FIFA dials EA's redirector by hardcoded IP. Armed, that address is DNAT'd to
+/// the OpenFUT server and connects instantly; unarmed it leaves the LAN and
+/// times out — which is exactly the "servers have been shut down" dialog.
+///
+/// This tests the *effect* rather than reading firewall rules, so it needs no
+/// privilege and stays honest about what the game will actually experience.
+#[cfg(unix)]
+fn ea_redirect(cfg: &LauncherConfig) -> Check {
+    const NAME: &str = "EA redirector IP is redirected";
+    let ip = cfg.ea_redirect_probe_ip.trim();
+    if ip.is_empty() {
+        return Check::skip(NAME, "no probe IP configured");
+    }
+    let Ok(addr) = ip.parse::<IpAddr>() else {
+        return Check::fail(NAME, format!("ea_redirect_probe_ip is not an IP: {ip:?}"));
+    };
+    let port = cfg.openfut_blaze_redirector_port;
+    match TcpStream::connect_timeout(&SocketAddr::new(addr, port), PROBE_TIMEOUT) {
+        Ok(_) => Check::pass(NAME, format!("{ip}:{port} answered — redirect is in place")),
+        Err(e) => Check::fail(
+            NAME,
+            format!("{ip}:{port} did not answer ({e}). Click 'Arm client'."),
+        ),
+    }
+}
+
+/// The dead EA hostnames should resolve to the OpenFUT server.
+///
+/// Resolution is done with `getaddrinfo`, the same call the game makes, so a
+/// duplicate `/etc/hosts` line that shadows the OpenFUT one is caught by its
+/// effect. Parsing `/etc/hosts` would miss it: the file can contain the right
+/// line and still resolve to the wrong address, because the first match wins.
+///
+/// # Why a warning and not a failure
+///
+/// Measured, not assumed. On 2026-08-11 this reported `easw.easports.com ->
+/// ::1,127.0.0.1` and the game reached the FUT hub regardless. The reason is in
+/// `client_arm.sh`'s own header: the responders run with `OPENFUT_ADVERTISE`
+/// set, so after the first redirected contact the game is handed the server's
+/// *address* for every later hop and stops using the hostname. The name is only
+/// CardsDLL's built-in fallback.
+///
+/// So this is a real misconfiguration worth fixing and not a reason to expect
+/// failure. Reporting it as fatal, and then being contradicted by a working
+/// game, is how a checklist trains its user to ignore it.
+#[cfg(unix)]
+fn hostname_mapping(cfg: &LauncherConfig) -> Check {
+    const NAME: &str = "EA hostnames point at OpenFUT";
+    if cfg.ea_hostnames.is_empty() {
+        return Check::skip(NAME, "no EA hostnames configured");
+    }
+    let server = cfg.openfut_server_host.trim();
+    if server.is_empty() {
+        return Check::skip(NAME, "no OpenFUT server configured");
+    }
+    let want = match resolve(server) {
+        Ok(ips) if !ips.is_empty() => ips,
+        _ => {
+            return Check::fail(
+                NAME,
+                format!("cannot resolve the OpenFUT server {server:?}"),
+            )
+        }
+    };
+
+    let mut wrong = Vec::new();
+    for host in &cfg.ea_hostnames {
+        match resolve(host) {
+            Ok(got) if got.iter().any(|ip| want.contains(ip)) => {}
+            Ok(got) => wrong.push(format!(
+                "{host} -> {} (expected {})",
+                join(&got),
+                join(&want)
+            )),
+            Err(e) => wrong.push(format!("{host} -> unresolvable ({e})")),
+        }
+    }
+
+    if wrong.is_empty() {
+        Check::pass(
+            NAME,
+            format!("{} host(s) resolve to {server}", cfg.ea_hostnames.len()),
+        )
+    } else {
+        Check::warn(
+            NAME,
+            format!(
+                "{}. Look for an earlier /etc/hosts line shadowing it. \
+                 Usually survivable: the server advertises its address, so the \
+                 game stops using this name after the first hop.",
+                wrong.join("; ")
+            ),
+        )
+    }
+}
+
+/// The server side of the same question: are the ports the game will use open?
+pub(crate) fn backend_reachable(cfg: &LauncherConfig) -> Check {
+    const NAME: &str = "OpenFUT server reachable";
+    let host = cfg.openfut_server_host.trim();
+    if host.is_empty() {
+        return Check::skip(NAME, "no OpenFUT server configured");
+    }
+    let ports = [
+        ("blaze redirector", cfg.openfut_blaze_redirector_port),
+        ("account sync", cfg.openfut_account_sync_port),
+    ];
+    let mut dead = Vec::new();
+    for (label, port) in ports {
+        if !connects(host, port) {
+            dead.push(format!("{label} :{port}"));
+        }
+    }
+    if dead.is_empty() {
+        Check::pass(NAME, format!("{host}: all {} ports answering", ports.len()))
+    } else {
+        Check::fail(NAME, format!("{host}: no answer on {}", dead.join(", ")))
+    }
+}
+
+/// The deployed `openfut.cfg` is the only server address the *game* can see.
+///
+/// Every panel in this launcher reads the in-memory config, so a settings change
+/// that never reached the file produces the worst possible failure: the UI shows
+/// the new server online while FIFA connects to the old one. Compare the two.
+fn hook_config(cfg: &LauncherConfig) -> Check {
+    const NAME: &str = "Hook server address";
+    let game_dir = cfg.fifa_game_dir.trim();
+    if game_dir.is_empty() {
+        return Check::skip(NAME, "no FIFA game dir configured");
+    }
+    let Some(body) = crate::setup::read_hook_config(std::path::Path::new(game_dir)) else {
+        return Check::skip(
+            NAME,
+            format!("no {} deployed yet", crate::setup::HOOK_CFG_FILE),
+        );
+    };
+    let deployed = match openfut_common::ServerConfig::parse(&body) {
+        Ok(parsed) => parsed,
+        // Unparseable means the hook cannot read it either, and nothing else in
+        // the stack recovers from that — so this one is a genuine failure.
+        Err(e) => {
+            return Check::fail(
+                NAME,
+                format!("{} is unreadable: {e}", crate::setup::HOOK_CFG_FILE),
+            )
+        }
+    };
+    let wanted = cfg.server_config();
+    if deployed == wanted {
+        return Check::pass(NAME, format!("hook redirects to {}", wanted.host));
+    }
+    // Warn, not fail: the launch path rewrites this file before starting the
+    // game, so the drift is real but already covered. Naming both addresses is
+    // what makes it actionable.
+    Check::warn(
+        NAME,
+        format!(
+            "deployed hook still points at {} (settings say {}) — launching rewrites it",
+            deployed.host, wanted.host
+        ),
+    )
+}
+
+fn connects(host: &str, port: u16) -> bool {
+    match (host, port).to_socket_addrs() {
+        Ok(mut addrs) => addrs.any(|a| TcpStream::connect_timeout(&a, PROBE_TIMEOUT).is_ok()),
+        Err(_) => false,
+    }
+}
+
+fn resolve(host: &str) -> std::io::Result<Vec<IpAddr>> {
+    Ok((host, 0u16).to_socket_addrs()?.map(|a| a.ip()).collect())
+}
+
+fn join(ips: &[IpAddr]) -> String {
+    ips.iter()
+        .map(|i| i.to_string())
+        .collect::<Vec<_>>()
+        .join(",")
+}
+
+#[cfg(all(test, unix))]
+mod tests {
+    use super::*;
+
+    fn cfg() -> LauncherConfig {
+        LauncherConfig::default()
+    }
+
+    #[test]
+    fn an_unconfigured_launcher_skips_rather_than_passes() {
+        // The distinction that matters: a fresh config must not display a column
+        // of green ticks. "Not checked" is not "checked and fine".
+        //
+        // `ptrace_scope` is excluded because it is no longer configuration
+        // dependent: it reads this machine's Yama setting and reports a real
+        // verdict either way. `only_ptrace_scope_zero_lets_autopatch_work`
+        // covers it.
+        let mut c = cfg();
+        // `default()` points this at a conventional path whose existence varies
+        // by machine. Pin it so the assertion is about the code, not this box.
+        c.fifa_game_dir = "/nonexistent/fifa-game-dir".into();
+        let checks: Vec<Check> = run(&c)
+            .into_iter()
+            .filter(|k| k.name != "ptrace_scope (autopatch)")
+            .collect();
+        assert!(
+            checks.iter().all(|k| k.state == State::Skipped),
+            "{checks:#?}"
+        );
+        assert_eq!(failures(&checks), 0, "nothing configured is not a failure");
+    }
+
+    #[test]
+    fn only_ptrace_scope_zero_lets_autopatch_work() {
+        assert_eq!(ptrace_verdict("0\n").state, State::Pass);
+        // 1 is the default on most distributions and is exactly the state that
+        // let autopatch fail silently for forty minutes on 2026-08-11.
+        assert_eq!(ptrace_verdict("1\n").state, State::Fail);
+        assert_eq!(ptrace_verdict("2").state, State::Fail);
+        assert_eq!(ptrace_verdict("3").state, State::Fail);
+        assert!(ptrace_verdict("1").detail.contains("Arm client"));
+    }
+
+    #[test]
+    fn a_malformed_probe_ip_fails_loudly_instead_of_being_skipped() {
+        let mut c = cfg();
+        c.ea_redirect_probe_ip = "not-an-ip".into();
+        let check = ea_redirect(&c);
+        assert_eq!(check.state, State::Fail);
+        assert!(check.detail.contains("not an IP"), "{}", check.detail);
+    }
+
+    #[test]
+    fn hostname_check_is_skipped_without_a_server_but_not_passed() {
+        let mut c = cfg();
+        c.ea_hostnames = vec!["easw.easports.com".into()];
+        assert_eq!(hostname_mapping(&c).state, State::Skipped);
+    }
+
+    #[test]
+    fn hostname_check_detects_a_host_pointing_somewhere_else() {
+        // localhost and 127.0.0.1 resolve without a network; this is the
+        // shadowed-/etc/hosts shape without depending on the real one.
+        let mut c = cfg();
+        c.openfut_server_host = "127.0.0.2".into();
+        c.ea_hostnames = vec!["localhost".into()];
+        let check = hostname_mapping(&c);
+        // Warn, not Fail: observed on 2026-08-11 to be survivable, because the
+        // server advertises its address after the first hop.
+        assert_eq!(check.state, State::Warn, "{}", check.detail);
+        assert!(check.detail.contains("localhost -> "), "{}", check.detail);
+    }
+
+    /// A shadowed hostname must not be counted as a reason to expect failure.
+    /// This is the exact case the first version got wrong.
+    ///
+    /// Asserts the hostname check itself rather than counting states across the
+    /// whole run: `backend_reachable` opens real sockets, so an aggregate count
+    /// silently asserts that THIS machine has the OpenFUT ports open. That made
+    /// the test pass only on the server host and fail on the game machine, which
+    /// is precisely where someone building the launcher runs the suite.
+    #[test]
+    fn a_shadowed_hostname_is_a_warning_not_a_failure() {
+        let mut c = cfg();
+        c.openfut_server_host = "127.0.0.2".into();
+        c.ea_hostnames = vec!["localhost".into()];
+        let check = hostname_mapping(&c);
+        assert_eq!(check.state, State::Warn, "{}", check.detail);
+        assert!(
+            check.detail.contains("localhost"),
+            "the warning must name the shadowed host: {}",
+            check.detail
+        );
+    }
+
+    #[test]
+    fn hostname_check_passes_when_it_points_at_the_server() {
+        let mut c = cfg();
+        c.openfut_server_host = "127.0.0.1".into();
+        c.ea_hostnames = vec!["localhost".into()];
+        // `localhost` may resolve to ::1 as well; the check requires only that
+        // one resolved address matches, which mirrors what connecting does.
+        assert_eq!(hostname_mapping(&c).state, State::Pass);
+    }
+
+    #[test]
+    fn a_dead_backend_port_is_reported_as_a_failure() {
+        let mut c = cfg();
+        c.openfut_server_host = "127.0.0.1".into();
+        // Port 1 requires root to bind, so nothing is listening on it.
+        c.openfut_blaze_redirector_port = 1;
+        c.openfut_account_sync_port = 1;
+        let check = backend_reachable(&c);
+        assert_eq!(check.state, State::Fail, "{}", check.detail);
+        assert!(check.detail.contains("no answer on"), "{}", check.detail);
+    }
+
+    /// A temp game dir holding one `openfut.cfg` body.
+    fn game_dir_with_cfg(tag: &str, body: &str) -> std::path::PathBuf {
+        let dir =
+            std::env::temp_dir().join(format!("openfut-preflight-{tag}-{}", std::process::id()));
+        std::fs::create_dir_all(&dir).unwrap();
+        std::fs::write(dir.join(crate::setup::HOOK_CFG_FILE), body).unwrap();
+        dir
+    }
+
+    #[test]
+    fn a_stale_hook_config_is_reported_and_names_both_addresses() {
+        // The silent failure this check exists for: settings changed, the file
+        // the game reads did not.
+        let mut c = cfg();
+        c.openfut_server_host = "10.0.0.2".into();
+        let old = openfut_common::ServerConfig {
+            host: "10.0.0.1".into(),
+            ports: c.server_config().ports,
+        };
+        let dir = game_dir_with_cfg("stale", &old.to_cfg_string());
+        c.fifa_game_dir = dir.to_string_lossy().into_owned();
+        let check = hook_config(&c);
+        assert_eq!(check.state, State::Warn, "{}", check.detail);
+        assert!(check.detail.contains("10.0.0.1"), "{}", check.detail);
+        assert!(check.detail.contains("10.0.0.2"), "{}", check.detail);
+        std::fs::remove_dir_all(dir).ok();
+    }
+
+    #[test]
+    fn a_hook_config_matching_settings_passes() {
+        let mut c = cfg();
+        c.openfut_server_host = "10.0.0.2".into();
+        let dir = game_dir_with_cfg("fresh", &c.server_config().to_cfg_string());
+        c.fifa_game_dir = dir.to_string_lossy().into_owned();
+        assert_eq!(hook_config(&c).state, State::Pass);
+        std::fs::remove_dir_all(dir).ok();
+    }
+
+    #[test]
+    fn a_missing_hook_config_is_skipped_not_passed() {
+        let mut c = cfg();
+        c.fifa_game_dir = "/nonexistent/fifa-game-dir".into();
+        assert_eq!(hook_config(&c).state, State::Skipped);
+    }
+}

src/process.rs

@@ -1,133 +0,0 @@
-use std::{
-    io::{BufRead, BufReader},
-    process::{Child, Command, Stdio},
-    sync::{Arc, Mutex},
-    thread,
-};
-
-use crate::logs::LogBuffer;
-
-#[derive(Debug, Clone, PartialEq)]
-pub enum ServiceStatus {
-    Stopped,
-    Starting,
-    Running,
-    Failed(String),
-}
-
-impl ServiceStatus {
-    pub fn label(&self) -> &str {
-        match self {
-            ServiceStatus::Stopped => "Stopped",
-            ServiceStatus::Starting => "Starting…",
-            ServiceStatus::Running => "Running",
-            ServiceStatus::Failed(_) => "Failed",
-        }
-    }
-
-    pub fn color(&self) -> egui::Color32 {
-        match self {
-            ServiceStatus::Running => egui::Color32::from_rgb(80, 200, 120),
-            ServiceStatus::Starting => egui::Color32::from_rgb(255, 200, 0),
-            ServiceStatus::Failed(_) => egui::Color32::from_rgb(220, 60, 60),
-            ServiceStatus::Stopped => egui::Color32::from_rgb(150, 150, 150),
-        }
-    }
-}
-
-pub struct ServiceHandle {
-    child: Option<Child>,
-    pub status: Arc<Mutex<ServiceStatus>>,
-}
-
-impl ServiceHandle {
-    pub fn new() -> Self {
-        Self {
-            child: None,
-            status: Arc::new(Mutex::new(ServiceStatus::Stopped)),
-        }
-    }
-
-    pub fn start(
-        &mut self,
-        binary: &str,
-        env_pairs: &[(String, String)],
-        log_buf: Arc<Mutex<LogBuffer>>,
-    ) -> anyhow::Result<()> {
-        if self.is_running() {
-            return Ok(());
-        }
-
-        *self.status.lock().unwrap() = ServiceStatus::Starting;
-
-        let mut cmd = Command::new(binary);
-        for (k, v) in env_pairs {
-            cmd.env(k, v);
-        }
-        cmd.stdout(Stdio::piped()).stderr(Stdio::piped());
-
-        let mut child = cmd.spawn().inspect_err(|e| {
-            *self.status.lock().unwrap() = ServiceStatus::Failed(e.to_string());
-        })?;
-
-        // Drain stdout
-        if let Some(stdout) = child.stdout.take() {
-            let buf = Arc::clone(&log_buf);
-            let status = Arc::clone(&self.status);
-            thread::spawn(move || {
-                *status.lock().unwrap() = ServiceStatus::Running;
-                for line in BufReader::new(stdout).lines().map_while(Result::ok) {
-                    buf.lock().unwrap().push(line);
-                }
-            });
-        }
-
-        // Drain stderr
-        if let Some(stderr) = child.stderr.take() {
-            let buf = Arc::clone(&log_buf);
-            thread::spawn(move || {
-                for line in BufReader::new(stderr).lines().map_while(Result::ok) {
-                    buf.lock().unwrap().push(line);
-                }
-            });
-        }
-
-        self.child = Some(child);
-        Ok(())
-    }
-
-    pub fn stop(&mut self) {
-        if let Some(mut child) = self.child.take() {
-            let _ = child.kill();
-            let _ = child.wait();
-        }
-        *self.status.lock().unwrap() = ServiceStatus::Stopped;
-    }
-
-    pub fn is_running(&mut self) -> bool {
-        if let Some(child) = &mut self.child {
-            match child.try_wait() {
-                Ok(Some(_)) => {
-                    // process exited
-                    self.child = None;
-                    *self.status.lock().unwrap() = ServiceStatus::Stopped;
-                    false
-                }
-                Ok(None) => true,
-                Err(_) => false,
-            }
-        } else {
-            false
-        }
-    }
-
-    pub fn status(&self) -> ServiceStatus {
-        self.status.lock().unwrap().clone()
-    }
-}
-
-impl Drop for ServiceHandle {
-    fn drop(&mut self) {
-        self.stop();
-    }
-}

src/setup.rs

@@ -1,25 +1,7 @@
-use std::{path::{Path, PathBuf}, process::Command};
-
-// ── Port 443 capability ───────────────────────────────────────────────────────
-
-/// Check whether the bridge binary already has cap_net_bind_service set.
-pub fn bridge_has_cap443(binary: &Path) -> bool {
-    std::process::Command::new("getcap")
-        .arg(binary)
-        .output()
-        .map(|o| String::from_utf8_lossy(&o.stdout).contains("cap_net_bind_service"))
-        .unwrap_or(false)
-}
-
-/// Grant cap_net_bind_service to the bridge binary so it can bind port 443
-/// without running as root. Uses pkexec (or sudo as fallback).
-pub fn setcap_bridge_443(binary: &Path) -> anyhow::Result<()> {
-    let script = format!(
-        "setcap cap_net_bind_service=+ep '{}'",
-        binary.to_string_lossy()
-    );
-    run_elevated(&script)
-}
+use std::{
+    path::{Path, PathBuf},
+    process::Command,
+};
 
 // ── Cert installation ─────────────────────────────────────────────────────────
 
@@ -67,17 +49,13 @@ fn try_wine_certutil(cert_src: &Path) -> anyhow::Result<()> {
     }
 }
 
-fn run_elevated(script: &str) -> anyhow::Result<()> {
-    let status = Command::new("pkexec")
-        .args(["sh", "-c", script])
-        .status();
+pub(crate) fn run_elevated(script: &str) -> anyhow::Result<()> {
+    let status = Command::new("pkexec").args(["sh", "-c", script]).status();
 
     match status {
         Ok(s) if s.success() => Ok(()),
         _ => {
-            let s = Command::new("sudo")
-                .args(["sh", "-c", script])
-                .status()?;
+            let s = Command::new("sudo").args(["sh", "-c", script]).status()?;
             if s.success() {
                 Ok(())
             } else {
@@ -89,11 +67,17 @@ fn run_elevated(script: &str) -> anyhow::Result<()> {
 
 // ── DLL hook deployment ───────────────────────────────────────────────────────
 
-/// Deploy openfut_hook.dll into the FIFA 23 game directory and write
-/// openfut.cfg with the redirect IP the hook will use.
-/// Uses `version.dll` as the hijack name — FIFA 23 loads it but defers to
-/// the system copy, so Proton picks up our local one first.
-pub fn deploy_hook_dll(dll_src: &Path, game_dir: &Path, redirect_ip: &str) -> anyhow::Result<()> {
+/// The file the injected hook reads its server address from, in the game dir.
+pub const HOOK_CFG_FILE: &str = "openfut.cfg";
+
+/// Deploy openfut_hook.dll into the game directory and write openfut.cfg with the
+/// structured server configuration the hook reads. `cfg_contents` must be the full
+/// `openfut.cfg` body (see `LauncherConfig::hook_cfg_contents`) — this function
+/// does not invent any address itself, so a missing server can never silently
+/// become loopback. Uses `version.dll` as the hijack name: the game loads it but
+/// defers to the system copy, so the loader (native or Wine) picks up our local
+/// one first.
+pub fn deploy_hook_dll(dll_src: &Path, game_dir: &Path, cfg_contents: &str) -> anyhow::Result<()> {
     if !dll_src.exists() {
         anyhow::bail!(
             "Hook DLL not found at {}. Build it first with:\n\
@@ -104,20 +88,30 @@ pub fn deploy_hook_dll(dll_src: &Path, game_dir: &Path, redirect_ip: &str) -> an
     }
     std::fs::create_dir_all(game_dir)?;
     std::fs::copy(dll_src, game_dir.join("version.dll"))?;
-    std::fs::write(game_dir.join("openfut.cfg"), redirect_ip)?;
+    std::fs::write(game_dir.join(HOOK_CFG_FILE), cfg_contents)?;
     Ok(())
 }
 
-/// Update only openfut.cfg without redeploying the DLL.
-pub fn update_hook_config(game_dir: &Path, redirect_ip: &str) -> anyhow::Result<()> {
-    let cfg = game_dir.join("openfut.cfg");
+/// Update only openfut.cfg without redeploying the DLL. `cfg_contents` is the
+/// full structured `openfut.cfg` body.
+pub fn update_hook_config(game_dir: &Path, cfg_contents: &str) -> anyhow::Result<()> {
+    let cfg = game_dir.join(HOOK_CFG_FILE);
     if !cfg.exists() {
         anyhow::bail!("Hook DLL not deployed yet — deploy first.");
     }
-    std::fs::write(cfg, redirect_ip)?;
+    std::fs::write(cfg, cfg_contents)?;
     Ok(())
 }
 
+/// Read the `openfut.cfg` the hook will actually load, if one is deployed.
+///
+/// The launcher's own health and account requests are built from the in-memory
+/// config, but the *game* only ever sees this file. Reading it back is the only
+/// way to tell whether the two agree.
+pub fn read_hook_config(game_dir: &Path) -> Option<String> {
+    std::fs::read_to_string(game_dir.join(HOOK_CFG_FILE)).ok()
+}
+
 /// Remove the deployed hook DLL from the FIFA game directory.
 pub fn remove_hook_dll(game_dir: &Path) -> anyhow::Result<()> {
     let dest = game_dir.join("version.dll");
@@ -132,7 +126,75 @@ pub fn hook_dll_deployed(game_dir: &Path) -> bool {
     game_dir.join("version.dll").exists()
 }
 
-/// The Steam launch options the user needs to paste in to enable the override.
-/// Proton loads local DLLs named in WINEDLLOVERRIDES ahead of system ones.
-pub const STEAM_LAUNCH_OPTIONS: &str =
-    "WINEDLLOVERRIDES=\"version=n,b\" %command%";
+/// Steam launch options that enable the hook's DLL override.
+///
+/// Kept only as a fallback to show a user who runs the game outside this launcher on
+/// a prefix we have never prepared. It is NOT the normal path any more: the launcher
+/// persists the override in the prefix registry itself
+/// (`game_launch::ensure_dll_override`), which applies to every launch including
+/// Steam's own Play button. Telling a player to paste launch options is exactly the
+/// kind of manual step this launcher exists to remove.
+pub const STEAM_LAUNCH_OPTIONS: &str = "WINEDLLOVERRIDES=\"version=n,b\" %command%";
+
+// ── Game launch ───────────────────────────────────────────────────────────────
+
+/// Launch the game via the user-provided shell command. Runs `sh -c <command>`
+/// (optionally from `workdir`), streaming stdout+stderr into `log_buf` on a
+/// background thread. The launcher does not assume Steam vs umu-run vs a custom
+/// script — whatever the user configured is what runs.
+pub fn launch_game(
+    command: &str,
+    workdir: &str,
+    log_buf: std::sync::Arc<parking_lot::Mutex<crate::logs::LogBuffer>>,
+    on_exit: impl FnOnce() + Send + 'static,
+) -> anyhow::Result<()> {
+    use std::io::{BufRead, BufReader};
+    use std::process::{Command, Stdio};
+
+    if command.trim().is_empty() {
+        anyhow::bail!("No game launch command configured (set it in Settings).");
+    }
+
+    let mut cmd = Command::new("sh");
+    cmd.arg("-c").arg(command);
+    if !workdir.trim().is_empty() {
+        cmd.current_dir(workdir);
+    }
+    cmd.stdout(Stdio::piped()).stderr(Stdio::piped());
+
+    log_buf
+        .lock()
+        .push(format!("[launcher] launching game: {command}"));
+
+    let mut child = cmd.spawn()?;
+
+    if let Some(out) = child.stdout.take() {
+        let buf = std::sync::Arc::clone(&log_buf);
+        std::thread::spawn(move || {
+            for line in BufReader::new(out).lines().map_while(Result::ok) {
+                buf.lock().push(line);
+            }
+        });
+    }
+    if let Some(err) = child.stderr.take() {
+        let buf = std::sync::Arc::clone(&log_buf);
+        std::thread::spawn(move || {
+            for line in BufReader::new(err).lines().map_while(Result::ok) {
+                buf.lock().push(line);
+            }
+        });
+    }
+    // Reap the child in the background so a finished game doesn't linger as a
+    // zombie; we don't block the UI on it. `on_exit` is how the launch state
+    // machine learns the game is gone — without it the UI would sit on
+    // "FIFA 17 Running" forever.
+    std::thread::spawn(move || {
+        let _ = child.wait();
+        log_buf
+            .lock()
+            .push("[launcher] game process exited.".to_string());
+        on_exit();
+    });
+
+    Ok(())
+}

src/theme.rs

@@ -0,0 +1,311 @@
+//! OpenFUT launcher visual system.
+//!
+//! A single place that owns the app's look: the semantic colour palette, the
+//! type scale, embedded fonts, and the tuned egui [`Style`]/[`Visuals`]. UI code
+//! composes *with* this system — it never hard-codes `Color32::from_rgb(...)` or
+//! stray pixel radii. The palette is deliberately small: one signature accent
+//! plus four status hues (success / warn / error / idle) and a tinted neutral
+//! ramp. Nothing here changes launcher behaviour; it is presentation only.
+
+use egui::{
+    Color32, Context, FontData, FontDefinitions, FontFamily, FontId, Frame, Margin, Rounding,
+    Stroke, TextStyle,
+};
+
+// ── Semantic palette ────────────────────────────────────────────────────────
+// Neutrals are always *tinted* (a hint of cool blue), never pure #000/#fff.
+
+/// Window backdrop — the deepest surface.
+pub const BG_DEEP: Color32 = Color32::from_rgb(0x10, 0x12, 0x18);
+/// Standard panel fill (nav rail, central body).
+pub const BG: Color32 = Color32::from_rgb(0x15, 0x18, 0x22);
+/// Raised card / group surface.
+pub const SURFACE: Color32 = Color32::from_rgb(0x1c, 0x20, 0x2e);
+/// Hovered / interactive raised surface.
+pub const SURFACE_HOVER: Color32 = Color32::from_rgb(0x24, 0x29, 0x3a);
+/// Inset surface (text fields, console, code).
+pub const INSET: Color32 = Color32::from_rgb(0x0e, 0x10, 0x17);
+
+/// Hairline divider / card border.
+pub const BORDER: Color32 = Color32::from_rgb(0x2a, 0x31, 0x45);
+/// Stronger border for emphasis / hover.
+pub const BORDER_STRONG: Color32 = Color32::from_rgb(0x3a, 0x43, 0x5e);
+
+/// Primary text.
+pub const TEXT: Color32 = Color32::from_rgb(0xe6, 0xe9, 0xf2);
+/// Secondary / supporting text.
+pub const TEXT_WEAK: Color32 = Color32::from_rgb(0x9a, 0xa3, 0xb8);
+/// Tertiary / disabled-ish text.
+pub const TEXT_FAINT: Color32 = Color32::from_rgb(0x6a, 0x73, 0x8a);
+
+/// Signature OpenFUT accent — a confident royal blue used for the wordmark,
+/// active navigation, and primary calls-to-action.
+pub const ACCENT: Color32 = Color32::from_rgb(0x4c, 0x6f, 0xff);
+pub const ACCENT_HOVER: Color32 = Color32::from_rgb(0x6a, 0x87, 0xff);
+pub const ACCENT_PRESSED: Color32 = Color32::from_rgb(0x3b, 0x5b, 0xe0);
+/// Faint accent wash for active-nav backgrounds / selection.
+pub const ACCENT_WASH: Color32 = Color32::from_rgb(0x22, 0x2c, 0x50);
+/// Text drawn on top of the solid accent.
+pub const ON_ACCENT: Color32 = Color32::from_rgb(0xf5, 0xf7, 0xff);
+
+/// Status hues — distinct from the accent so "primary action" never reads as
+/// "healthy" and vice-versa.
+pub const SUCCESS: Color32 = Color32::from_rgb(0x3f, 0xcf, 0x8e);
+pub const WARN: Color32 = Color32::from_rgb(0xf2, 0xb4, 0x4c);
+pub const ERROR: Color32 = Color32::from_rgb(0xf2, 0x6d, 0x6d);
+pub const IDLE: Color32 = Color32::from_rgb(0x7a, 0x83, 0x99);
+/// Informational blue for log lines (lighter than the accent).
+pub const INFO: Color32 = Color32::from_rgb(0x8f, 0xb6, 0xff);
+
+// ── Type scale (custom named text styles) ───────────────────────────────────
+
+/// Large branded wordmark.
+pub const HERO: &str = "Hero";
+/// Card / section titles.
+pub const SUBHEADING: &str = "Subheading";
+/// Small monospace (console meta, launch command).
+pub const MONO_SM: &str = "MonoSm";
+
+fn bold_family() -> FontFamily {
+    FontFamily::Name("openfut-bold".into())
+}
+
+/// A [`TextStyle`] handle for one of our custom scale steps.
+pub fn text_style(name: &str) -> TextStyle {
+    TextStyle::Name(name.into())
+}
+
+// ── Status semantics ────────────────────────────────────────────────────────
+
+/// A coarse health/activity state, mapped to one palette hue + glyph. Using an
+/// enum keeps status rendering consistent everywhere (dashboard, preflight,
+/// services) instead of ad-hoc colour+string pairs.
+#[derive(Clone, Copy, PartialEq, Eq)]
+pub enum Status {
+    /// Healthy / online / running / passed.
+    Ok,
+    /// Advisory — worth attention, usually not fatal.
+    Warn,
+    /// Broken / unreachable / failed.
+    Error,
+    /// Not running / not configured / not checked.
+    Idle,
+    /// Transient (stopping / working).
+    Busy,
+    /// Unknown / not yet probed.
+    Unknown,
+}
+
+impl Status {
+    pub fn color(self) -> Color32 {
+        match self {
+            Status::Ok => SUCCESS,
+            Status::Warn => WARN,
+            Status::Error => ERROR,
+            Status::Idle => IDLE,
+            Status::Busy => WARN,
+            Status::Unknown => TEXT_FAINT,
+        }
+    }
+
+    /// A consistent status glyph: filled ● for active/terminal states, hollow ○
+    /// for idle/unknown. (Kept to glyphs the bundled fonts render.)
+    pub fn glyph(self) -> &'static str {
+        match self {
+            Status::Ok | Status::Error | Status::Warn | Status::Busy => "●",
+            Status::Idle | Status::Unknown => "○",
+        }
+    }
+}
+
+/// Draw a compact status pill: a tinted, rounded chip with a status dot and
+/// label. Used for the at-a-glance state on each dashboard card.
+pub fn status_pill(ui: &mut egui::Ui, label: &str, status: Status) {
+    let color = status.color();
+    let bg = tint(color, 0.14);
+    Frame::none()
+        .fill(bg)
+        .rounding(Rounding::same(999.0))
+        .inner_margin(Margin::symmetric(10.0, 3.0))
+        .show(ui, |ui| {
+            ui.horizontal(|ui| {
+                ui.spacing_mut().item_spacing.x = 6.0;
+                ui.label(egui::RichText::new(status.glyph()).color(color).size(11.0));
+                ui.label(egui::RichText::new(label).color(color).size(12.0).strong());
+            });
+        });
+}
+
+/// A raised card surface: rounded, hairline-bordered, generously padded. The
+/// building block for the dashboard and setup sections.
+pub fn card() -> Frame {
+    Frame::none()
+        .fill(SURFACE)
+        .stroke(Stroke::new(1.0_f32, BORDER))
+        .rounding(Rounding::same(12.0))
+        .inner_margin(Margin::same(18.0))
+}
+
+/// Blend `color` toward the app background by `bg_weight` (0 = full colour,
+/// 1 = pure background). Used for tinted chips and washes.
+pub fn tint(color: Color32, weight: f32) -> Color32 {
+    let w = weight.clamp(0.0, 1.0);
+    let lerp = |c: u8, b: u8| ((c as f32) * w + (b as f32) * (1.0 - w)).round() as u8;
+    // Chips sit on card surfaces; lerp toward the surface, not the deep bg.
+    Color32::from_rgb(
+        lerp(color.r(), SURFACE.r()),
+        lerp(color.g(), SURFACE.g()),
+        lerp(color.b(), SURFACE.b()),
+    )
+}
+
+// ── Install ─────────────────────────────────────────────────────────────────
+
+/// Embed the bundled fonts and apply the OpenFUT style. Called once at startup.
+pub fn install(ctx: &Context) {
+    install_fonts(ctx);
+    install_style(ctx);
+}
+
+fn install_fonts(ctx: &Context) {
+    let mut fonts = FontDefinitions::default();
+
+    fonts.font_data.insert(
+        "openfut-sans".to_owned(),
+        FontData::from_static(include_bytes!("../assets/fonts/LiberationSans-Regular.ttf")),
+    );
+    fonts.font_data.insert(
+        "openfut-bold".to_owned(),
+        FontData::from_static(include_bytes!("../assets/fonts/LiberationSans-Bold.ttf")),
+    );
+    fonts.font_data.insert(
+        "openfut-mono".to_owned(),
+        FontData::from_static(include_bytes!("../assets/fonts/DejaVuSansMono.ttf")),
+    );
+
+    // Proportional & monospace default to the bundled faces so the UI looks
+    // identical regardless of the host's installed fonts.
+    fonts
+        .families
+        .entry(FontFamily::Proportional)
+        .or_default()
+        .insert(0, "openfut-sans".to_owned());
+    fonts
+        .families
+        .entry(FontFamily::Monospace)
+        .or_default()
+        .insert(0, "openfut-mono".to_owned());
+
+    // A dedicated bold family — egui does not synthesize weight, so headings
+    // reference this explicitly for a real type hierarchy.
+    fonts.families.insert(
+        FontFamily::Name("openfut-bold".into()),
+        vec!["openfut-bold".to_owned(), "openfut-sans".to_owned()],
+    );
+
+    ctx.set_fonts(fonts);
+}
+
+fn install_style(ctx: &Context) {
+    let mut style = (*ctx.style()).clone();
+
+    // ── Type scale ──────────────────────────────────────────────────────────
+    let bold = bold_family();
+    let prop = FontFamily::Proportional;
+    let mono = FontFamily::Monospace;
+    let ts = &mut style.text_styles;
+    ts.insert(text_style(HERO), FontId::new(28.0, bold.clone()));
+    ts.insert(TextStyle::Heading, FontId::new(19.0, bold.clone()));
+    ts.insert(text_style(SUBHEADING), FontId::new(15.0, bold));
+    ts.insert(TextStyle::Body, FontId::new(14.0, prop.clone()));
+    ts.insert(TextStyle::Button, FontId::new(14.0, prop.clone()));
+    ts.insert(TextStyle::Small, FontId::new(12.0, prop));
+    ts.insert(TextStyle::Monospace, FontId::new(13.0, mono.clone()));
+    ts.insert(text_style(MONO_SM), FontId::new(11.5, mono));
+
+    // ── Spacing scale (multiples of 4) ────────────────────────────────────────
+    let sp = &mut style.spacing;
+    sp.item_spacing = egui::vec2(8.0, 8.0);
+    sp.button_padding = egui::vec2(12.0, 7.0);
+    sp.menu_margin = Margin::same(8.0);
+    sp.indent = 18.0;
+    sp.interact_size.y = 30.0;
+    sp.scroll.bar_width = 9.0;
+
+    // ── Visuals ───────────────────────────────────────────────────────────────
+    let mut v = egui::Visuals::dark();
+    v.dark_mode = true;
+    v.override_text_color = Some(TEXT);
+    v.panel_fill = BG;
+    v.window_fill = BG;
+    v.extreme_bg_color = INSET;
+    v.faint_bg_color = SURFACE;
+    v.code_bg_color = INSET;
+    v.hyperlink_color = ACCENT_HOVER;
+
+    v.window_rounding = Rounding::same(12.0);
+    v.window_stroke = Stroke::new(1.0_f32, BORDER);
+    v.menu_rounding = Rounding::same(8.0);
+    v.window_shadow = egui::epaint::Shadow::NONE;
+    v.popup_shadow = egui::epaint::Shadow {
+        offset: egui::vec2(0.0, 6.0),
+        blur: 18.0,
+        spread: 0.0,
+        color: Color32::from_black_alpha(120),
+    };
+
+    // Selection uses the accent wash so highlighted text/nav reads as branded.
+    v.selection.bg_fill = ACCENT_WASH;
+    v.selection.stroke = Stroke::new(1.0_f32, ACCENT_HOVER);
+
+    // Separators / hairlines.
+    let radius = Rounding::same(8.0);
+
+    // Non-interactive widgets (labels, separators).
+    v.widgets.noninteractive.bg_fill = SURFACE;
+    v.widgets.noninteractive.weak_bg_fill = SURFACE;
+    v.widgets.noninteractive.bg_stroke = Stroke::new(1.0_f32, BORDER);
+    v.widgets.noninteractive.fg_stroke = Stroke::new(1.0_f32, TEXT);
+    v.widgets.noninteractive.rounding = radius;
+
+    // Inactive interactive widgets (idle buttons).
+    v.widgets.inactive.bg_fill = SURFACE_HOVER;
+    v.widgets.inactive.weak_bg_fill = SURFACE_HOVER;
+    v.widgets.inactive.bg_stroke = Stroke::new(1.0_f32, BORDER);
+    v.widgets.inactive.fg_stroke = Stroke::new(1.0_f32, TEXT);
+    v.widgets.inactive.rounding = radius;
+
+    // Hovered.
+    v.widgets.hovered.bg_fill = tint(ACCENT, 0.30);
+    v.widgets.hovered.weak_bg_fill = tint(ACCENT, 0.30);
+    v.widgets.hovered.bg_stroke = Stroke::new(1.0_f32, BORDER_STRONG);
+    v.widgets.hovered.fg_stroke = Stroke::new(1.0_f32, TEXT);
+    v.widgets.hovered.rounding = radius;
+    v.widgets.hovered.expansion = 1.0;
+
+    // Active / pressed.
+    v.widgets.active.bg_fill = ACCENT_PRESSED;
+    v.widgets.active.weak_bg_fill = ACCENT_PRESSED;
+    v.widgets.active.bg_stroke = Stroke::new(1.0_f32, ACCENT);
+    v.widgets.active.fg_stroke = Stroke::new(1.0_f32, ON_ACCENT);
+    v.widgets.active.rounding = radius;
+    v.widgets.active.expansion = 1.0;
+
+    // Open (combo boxes / menus).
+    v.widgets.open.bg_fill = SURFACE_HOVER;
+    v.widgets.open.weak_bg_fill = SURFACE_HOVER;
+    v.widgets.open.bg_stroke = Stroke::new(1.0_f32, BORDER_STRONG);
+    v.widgets.open.fg_stroke = Stroke::new(1.0_f32, TEXT);
+    v.widgets.open.rounding = radius;
+
+    style.visuals = v;
+    // egui 0.29 keeps a separate `Style` per theme (dark/light) and renders with
+    // whichever the theme preference resolves to. `set_style` touches only the
+    // currently-active theme, so a later switch to the other one would drop our
+    // named text styles ("Hero", "Subheading", …) and panic in `TextStyle::resolve`.
+    // Install the full style into BOTH themes and pin the preference to Dark so
+    // the branded look is stable regardless of the host's system theme.
+    ctx.set_style_of(egui::Theme::Dark, style.clone());
+    ctx.set_style_of(egui::Theme::Light, style);
+    ctx.set_theme(egui::ThemePreference::Dark);
+}