style(hook): clippy -D warnings clean on default + fifa17 features

Modernize manual nul-terminated byte strings to C-string literals (c"...")
at all Win32 GetModuleHandleA/GetProcAddress/getaddrinfo call sites (byte-identical),
drop two redundant SOL_SOCKET-as-i32 casts, remove a needless return in the fifa17
install path, and add a # Safety section to DllMain. Scope the FIFA-23-path
dead-code/unused-import lints (unused only under the fifa17 feature, stripped by the
linker) with a documented crate-level cfg_attr allow. Cross-verified: both the
default and fifa17 builds now pass clippy -D warnings and compile; probe and
capture_baseline still build.

.gitignore

@@ -4,6 +4,3 @@ target/
 openfut.db
 openfut.db-shm
 openfut.db-wal
-
-# hook cross-build test output
-target-test/

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 +12,4 @@ serde = { version = "1", features = ["derive"] }
 serde_json = "1"
 dirs = "5"
 chrono = { version = "0.4", features = ["serde"] }
+openfut-common = { path = "openfut-common" }

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"
@@ -21,7 +27,6 @@ probe = []
 fifa17 = []
 
 [dependencies]
-openfut-common = { path = "../openfut-common" }
 windows-sys = { version = "0.59", features = [
     "Win32_Foundation",
     "Win32_System_LibraryLoader",

openfut-hook/src/config.rs

@@ -1,16 +1,20 @@
-//! Load the configured OpenFUT host and destination ports from `openfut.cfg`.
+/// Reads openfut.cfg from the same directory as this DLL.
-//! Missing or invalid configuration is a hard error; there is no loopback
+///
-//! fallback. Both structured config and the legacy bare-host line are accepted
+/// The file contains a single line: the IP the hook should redirect EA
-//! by `openfut-common`.
+/// hostnames to, e.g. "192.168.1.10" or "127.0.0.1".
-use openfut_common::{ConfigError, ServerConfig};
+/// Falls back to 127.0.0.1 if the file is missing or unreadable.
 use windows_sys::Win32::System::LibraryLoader::GetModuleFileNameA;
 
-pub fn load_config(
+pub fn read_redirect_ip(module: windows_sys::Win32::Foundation::HMODULE) -> String {
-    module: windows_sys::Win32::Foundation::HMODULE,
+    if let Some(cfg_path) = config_path(module) {
-) -> Result<ServerConfig, ConfigError> {
+        if let Ok(content) = std::fs::read_to_string(&cfg_path) {
-    let cfg_path = config_path(module).ok_or(ConfigError::ConfigMissing)?;
+            let ip = content.trim().to_string();
-    let content = std::fs::read_to_string(&cfg_path).map_err(|_| ConfigError::ConfigMissing)?;
+            if !ip.is_empty() {
-    ServerConfig::parse(&content)
+                return ip;
+            }
+        }
+    }
+    "127.0.0.1".to_string()
 }
 
 fn config_path(module: windows_sys::Win32::Foundation::HMODULE) -> Option<std::path::PathBuf> {
@@ -26,29 +30,3 @@ fn config_path(module: windows_sys::Win32::Foundation::HMODULE) -> Option<std::p
     let dll_path = std::path::Path::new(path);
     Some(dll_path.parent()?.join("openfut.cfg"))
 }
-
-/// Read a raw feature-flag value (`key=value`) from `openfut.cfg` beside the DLL.
-///
-/// Returns the trimmed value, or `None` if the file or key is absent. This reads the
-/// SAME config file as [`load_config`] but does NOT go through the strict
-/// [`ServerConfig`] parser (which owns host/port validation and hard-errors on bad
-/// input) — optional client feature flags must never be able to break server config.
-pub fn feature_value(
-    module: windows_sys::Win32::Foundation::HMODULE,
-    key: &str,
-) -> Option<String> {
-    let cfg_path = config_path(module)?;
-    let content = std::fs::read_to_string(&cfg_path).ok()?;
-    for line in content.lines() {
-        let line = line.trim();
-        if line.is_empty() || line.starts_with('#') {
-            continue;
-        }
-        if let Some((k, v)) = line.split_once('=') {
-            if k.trim() == key {
-                return Some(v.trim().to_string());
-            }
-        }
-    }
-    None
-}

openfut-hook/src/connect_hook.rs

@@ -1,13 +1,13 @@
 /// Hooks ws2_32!connect via inline detour (no iptables needed).
 /// Uses unhook/rehook pattern: restores original bytes, calls real function, re-installs hook.
 /// This avoids trampoline RIP-relocation issues entirely.
-use std::sync::atomic::{AtomicU16, AtomicU32, AtomicUsize, Ordering};
+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_FIFA17_BLAZE_REDIRECTOR_NBO: u16 = 0xF6A4; // 42230 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
@@ -18,47 +18,7 @@ const PORT_BLAZE_MAIN_NBO: u16 = 0x8FA4; // 42127 big-endian
 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)
-/// Redirect target for rewritten EA connects, stored in **network byte order**
+const ADDR_LOOPBACK_NBO: u32 = 0x0100_007F; // 127.0.0.1 big-endian
-/// (same layout as `sockaddr_in.sin_addr`). Zero means unconfigured and causes
-/// redirect_if_ea to leave traffic untouched; there is no loopback fallback.
-static TARGET_ADDR_NBO: AtomicU32 = AtomicU32::new(0);
-static TARGET_HTTPS_PORT_NBO: AtomicU16 = AtomicU16::new(0);
-static TARGET_BLAZE_REDIRECTOR_PORT_NBO: AtomicU16 = AtomicU16::new(0);
-static TARGET_BLAZE_MAIN_PORT_NBO: AtomicU16 = AtomicU16::new(0);
-
-/// Install the single resolved destination shared by every socket path.
-pub fn set_server(server: openfut_common::ResolvedServer) {
-    TARGET_ADDR_NBO.store(
-        openfut_common::sin_addr_from_ipv4(server.redirect_ip),
-        Ordering::Relaxed,
-    );
-    TARGET_HTTPS_PORT_NBO.store(
-        openfut_common::sin_port_nbo(server.ports.https),
-        Ordering::Relaxed,
-    );
-    TARGET_BLAZE_REDIRECTOR_PORT_NBO.store(
-        openfut_common::sin_port_nbo(server.ports.blaze_redirector),
-        Ordering::Relaxed,
-    );
-    TARGET_BLAZE_MAIN_PORT_NBO.store(
-        openfut_common::sin_port_nbo(server.ports.blaze_main),
-        Ordering::Relaxed,
-    );
-}
-
-/// Current redirect target in network byte order.
-fn target_addr_nbo() -> u32 {
-    TARGET_ADDR_NBO.load(Ordering::Relaxed)
-}
-
-/// Build the 16-byte IPv4-mapped IPv6 address (`::ffff:a.b.c.d`) for the current
-/// target, so an AF_INET6 socket reaches the same host as the AF_INET path.
-fn target_v4mapped() -> [u8; 16] {
-    let o = target_addr_nbo().to_ne_bytes(); // a.b.c.d in memory order
-    [
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xff, 0xff, o[0], o[1], o[2], o[3],
-    ]
-}
 
 #[repr(C)]
 struct SockaddrIn {
@@ -81,8 +41,12 @@ struct SockaddrIn6 {
     sin6_scope_id: u32,
 }
 
-/// IPv4-mapped IPv6 loopback is no longer hardcoded — the v4-mapped target is
+/// IPv4-mapped IPv6 loopback: `::ffff:127.0.0.1`. An `AF_INET6` socket connecting to
-/// derived from the configurable `TARGET_ADDR_NBO` via `target_v4mapped()`.
+/// 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);
@@ -146,40 +110,30 @@ pub(crate) unsafe fn redirect_if_ea(name: *const u8, namelen: i32) -> Option<([u
             // 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 => TARGET_HTTPS_PORT_NBO.load(Ordering::Relaxed),
+                PORT_HTTPS_NBO => PORT_BRIDGE_NBO,
                 #[cfg(not(feature = "capture_baseline"))]
                 PORT_LSX_NBO => PORT_LSX_TARGET_NBO,
-                PORT_BLAZE_REDIRECTOR_NBO | PORT_FIFA17_BLAZE_REDIRECTOR_NBO => {
+                PORT_BLAZE_REDIRECTOR_NBO => PORT_BLAZE_REDIRECTOR_NBO,
-                    TARGET_BLAZE_REDIRECTOR_PORT_NBO.load(Ordering::Relaxed)
+                PORT_BLAZE_MAIN_NBO => PORT_BLAZE_MAIN_NBO,
-                }
-                PORT_BLAZE_MAIN_NBO => TARGET_BLAZE_MAIN_PORT_NBO.load(Ordering::Relaxed),
                 _ => return None,
             };
-            if new_port_nbo == 0 || target_addr_nbo() == 0 {
-                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 t = target_addr_nbo().to_ne_bytes();
             crate::write_log(&format!(
-                "connect_hook: v4 {}.{}.{}.{}:{} → {}.{}.{}.{}:{}\n",
+                "connect_hook: v4 {}.{}.{}.{}:{} → 127.0.0.1:{}\n",
                 o[0],
                 o[1],
                 o[2],
                 o[3],
                 u16::from_be(sa.sin_port),
-                t[0],
-                t[1],
-                t[2],
-                t[3],
                 u16::from_be(new_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 = target_addr_nbo();
+            out.sin_addr = ADDR_LOOPBACK_NBO;
             Some((buf, 16))
         }
         AF_INET6 => {
@@ -190,16 +144,11 @@ pub(crate) unsafe fn redirect_if_ea(name: *const u8, namelen: i32) -> Option<([u
             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 => TARGET_HTTPS_PORT_NBO.load(Ordering::Relaxed),
+                PORT_HTTPS_NBO => PORT_BRIDGE_NBO,
-                PORT_BLAZE_REDIRECTOR_NBO | PORT_FIFA17_BLAZE_REDIRECTOR_NBO => {
+                PORT_BLAZE_REDIRECTOR_NBO => PORT_BLAZE_REDIRECTOR_NBO,
-                    TARGET_BLAZE_REDIRECTOR_PORT_NBO.load(Ordering::Relaxed)
+                PORT_BLAZE_MAIN_NBO => PORT_BLAZE_MAIN_NBO,
-                }
-                PORT_BLAZE_MAIN_NBO => TARGET_BLAZE_MAIN_PORT_NBO.load(Ordering::Relaxed),
                 _ => return None,
             };
-            if new_port_nbo == 0 || target_addr_nbo() == 0 {
-                return None;
-            }
             let a = sa6.sin6_addr;
             crate::write_log(&format!(
                 "connect_hook: v6 [{:02x}{:02x}:..:{:02x}{:02x}]:{} → ::ffff:127.0.0.1:{}\n",
@@ -215,7 +164,7 @@ pub(crate) unsafe fn redirect_if_ea(name: *const u8, namelen: i32) -> Option<([u
             out.sin6_family = AF_INET6;
             out.sin6_port = new_port_nbo;
             out.sin6_flowinfo = 0;
-            out.sin6_addr = target_v4mapped();
+            out.sin6_addr = V4MAPPED_LOOPBACK;
             out.sin6_scope_id = 0;
             Some((buf, 28))
         }
@@ -242,7 +191,7 @@ 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,
@@ -266,17 +215,7 @@ pub unsafe extern "system" fn hooked_connect(s: usize, name: *const u8, namelen:
                 core::mem::transmute(addr);
             f(s, buf.as_ptr(), len)
         };
-        let wsa_error = if r != 0 {
-            use windows_sys::Win32::Networking::WinSock::WSAGetLastError;
-            WSAGetLastError()
-        } else {
-            0
-        };
         write_hook(addr, hooked_connect as *const () as u64);
-        if r != 0 {
-            use windows_sys::Win32::Networking::WinSock::WSASetLastError;
-            WSASetLastError(wsa_error);
-        }
         return r;
     } else {
         (name, namelen)
@@ -287,23 +226,19 @@ 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 wsa_error = if r != 0 {
-        use windows_sys::Win32::Networking::WinSock::WSAGetLastError;
-        WSAGetLastError()
-    } else {
-        0
-    };
     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 {
-            crate::write_log(&format!("connect_hook: result={r} wsa_err={wsa_error}\n"));
+            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"));
         }
     }
-    if r != 0 {
-        use windows_sys::Win32::Networking::WinSock::WSASetLastError;
-        WSASetLastError(wsa_error);
-    }
     r
 }
 
@@ -330,11 +265,11 @@ 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,
     };

openfut-hook/src/connectex_hook.rs

@@ -152,11 +152,11 @@ 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/fifa17.rs

@@ -2,19 +2,13 @@
 //!
 //! 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 memory-layout-specific logic here (origin_spy, LSX dial, event
+//! of the FIFA-23 connect/LSX/origin_spy/dial logic here — that would at best
-//! deserializer probes) — that would at best no-op and at worst crash.
+//! 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).
 //!
-//! What it DOES do:
+//! Everything here is read-only except the (not-yet-enabled) cert-verify patch.
-//!   1. Prove the version.dll hijack loads us into FIFA17.exe (module dump).
-//!   2. Install the *generic*, memory-layout-independent network redirect:
-//!      ws2_32 `getaddrinfo` (EA host → configured server) and an inline
-//!      `connect` / `WSAConnect` detour (EA ports → bridge, dest → configured
-//!      server IP). These key on hostnames/ports only, not on FIFA-23 offsets,
-//!      so they are safe to reuse on FIFA 17.
-//!
-//! Not yet done (next milestone): DirtySDK/ProtoSSL cert-verify patch for the
-//! secure Blaze handshake. The module dump locates the DLL that needs it.
 
 use crate::write_log;
 use windows_sys::Win32::Foundation::{CloseHandle, INVALID_HANDLE_VALUE};
@@ -76,7 +70,7 @@ unsafe fn dump_modules() {
 /// 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.
-unsafe extern "system" fn worker(param: *mut core::ffi::c_void) -> u32 {
+unsafe extern "system" fn worker(_: *mut core::ffi::c_void) -> u32 {
     write_log("=== fifa17 hook: worker thread start ===\n");
     let main_base = GetModuleHandleA(core::ptr::null()) as usize;
     let img = size_of_image(main_base);
@@ -84,28 +78,6 @@ unsafe extern "system" fn worker(param: *mut core::ffi::c_void) -> u32 {
         "fifa17: main exe base={main_base:#018x} SizeOfImage={img:#x}\n"
     ));
     dump_modules();
-
-    // Install the generic network redirect. `param` carries our own DLL's
-    // HMODULE so config::load_config can find openfut.cfg beside the DLL.
-    let dll_module = param as windows_sys::Win32::Foundation::HMODULE;
-    let server = match crate::config::load_config(dll_module).and_then(|c| c.resolve()) {
-        Ok(server) => server,
-        Err(e) => {
-            write_log(&format!(
-                "fifa17: invalid/missing openfut.cfg ({e}); network redirect DISABLED\n"
-            ));
-            return 0;
-        }
-    };
-    write_log(&format!(
-        "fifa17: OpenFUT server={} https={} blaze_redir={} blaze_main={}\n",
-        server.redirect_ip,
-        server.ports.https,
-        server.ports.blaze_redirector,
-        server.ports.blaze_main
-    ));
-    install_network_redirect(server);
-
     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.
@@ -114,82 +86,19 @@ unsafe extern "system" fn worker(param: *mut core::ffi::c_void) -> u32 {
     // It currently fails closed until safe relocating trampolines are proven.
     crate::sbc_trace::install();
     crate::sbc_request_trace::install();
-    // Empty-My-Packs Store fix (inert unless store_mypacks_fix=1 in openfut.cfg).
-    crate::store_hook::install(dll_module);
     0
 }
 
-/// Install the generic network redirect (getaddrinfo + connect + WSAConnect).
-///
-/// `server` is the resolved host + configured destination ports from openfut.cfg.
-/// two independent mechanisms, both keyed only on EA hostnames/ports (no
-/// FIFA-version-specific memory layout):
-///   - getaddrinfo: EA hostnames resolve to `redirect_ip`.
-///   - connect/WSAConnect: EA source ports are remapped to the bridge ports and
-///     the destination address is rewritten to `redirect_ip`.
-///
-/// If `redirect_ip` parses as an IPv4 literal, the connect detour rewrites the
-/// destination directly (no DNS). When it is a hostname, getaddrinfo already
-/// resolves it, and the connect detour falls back to leaving the resolved
-/// address in place (only remapping the port).
-unsafe fn install_network_redirect(server: openfut_common::ResolvedServer) {
-    let redirect_ip = server.redirect_ip.to_string();
-    // Resolver redirect: EA hostnames → configured server. Uses INLINE detours at
-    // the ws2_32 export addresses (getaddrinfo / GetAddrInfoW / gethostbyname),
-    // not IAT patching — the IAT approach patched 0 slots on FIFA 17 because the
-    // game doesn't import the resolver through its import table.
-    crate::hooks::set_redirect_ip(redirect_ip.clone());
-    let (ok, total) = crate::resolver_hook::install_resolver_hooks();
-    write_log(&format!(
-        "fifa17: resolver detours {ok}/{total} installed\n"
-    ));
-
-    crate::connect_hook::set_server(server);
-    write_log(&format!(
-        "fifa17: connect target set to {} (https={} blaze_redir={} blaze_main={})\n",
-        server.redirect_ip,
-        server.ports.https,
-        server.ports.blaze_redirector,
-        server.ports.blaze_main
-    ));
-
-    // Inline connect detour (port remap + destination rewrite).
-    if crate::connect_hook::install_inline_connect_hook() {
-        write_log("fifa17: connect inline-hooked\n");
-    } else {
-        write_log("fifa17: connect hook FAILED\n");
-    }
-
-    // WSAConnect IAT fallback (some EA paths use WSAConnect instead of connect).
-    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");
-    }
-}
-
 /// Minimal FIFA-17 install. Keep DllMain itself trivial: only spawn a worker
 /// thread and return immediately, so we never touch the loader lock from here.
-/// `module` is our own DLL's HMODULE, passed to the worker so it can locate
+pub unsafe fn install() {
-/// openfut.cfg beside the DLL.
-pub unsafe fn install(module: windows_sys::Win32::Foundation::HMODULE) {
     use windows_sys::Win32::System::Threading::CreateThread;
     write_log("=== fifa17 hook: DllMain ATTACH (spawning worker) ===\n");
     let h = CreateThread(
         core::ptr::null(),
         0,
         Some(worker),
-        module as *const core::ffi::c_void,
+        core::ptr::null(),
         0,
         core::ptr::null_mut(),
     );

openfut-hook/src/hooks.rs

@@ -13,7 +13,6 @@ type GetaddrinfoFn =
 
 static REAL: OnceLock<GetaddrinfoFn> = OnceLock::new();
 static REDIRECT_IP: OnceLock<Vec<u8>> = OnceLock::new();
-static REDIRECT_IP_STR: OnceLock<String> = 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
@@ -25,21 +24,9 @@ pub fn set_real(f: GetaddrinfoFn) {
 }
 
 pub fn set_redirect_ip(ip: String) {
-    let mut bytes = ip.clone().into_bytes();
+    let mut bytes = ip.into_bytes();
     bytes.push(0);
     let _ = REDIRECT_IP.set(bytes);
-    let _ = REDIRECT_IP_STR.set(ip);
-}
-
-/// The redirect IP as a NUL-terminated C string pointer, or None if unset.
-/// Used by the resolver detours to rewrite an EA query's node name.
-pub fn redirect_ip_cstr() -> Option<*const u8> {
-    REDIRECT_IP.get().map(|v| v.as_ptr())
-}
-
-/// The redirect IP as a Rust &str, or None if unset (for the wide/UTF-16 path).
-pub fn redirect_ip_str() -> Option<&'static str> {
-    REDIRECT_IP_STR.get().map(|s| s.as_str())
 }
 
 /// Returns true if `host` is an EA / EA-Sports domain that should be redirected
@@ -81,13 +68,12 @@ pub unsafe extern "system" fn hooked_getaddrinfo(
                     }
                 }
 
-                if let Some(redirect) = REDIRECT_IP.get() {
+                let redirect = REDIRECT_IP
-                    let real = REAL.get().copied().unwrap_or(sys_getaddrinfo);
+                    .get()
-                    return real(redirect.as_ptr(), service_name, hints, result);
+                    .map(|v| v.as_ptr())
-                }
+                    .unwrap_or(c"127.0.0.1".as_ptr().cast());
-                crate::write_log(
+                let real = REAL.get().copied().unwrap_or(sys_getaddrinfo);
-                    "openfut_hook: EA hostname seen without configured server; not redirecting\n",
+                return real(redirect, service_name, hints, result);
-                );
             }
         }
     }

openfut-hook/src/lib.rs

@@ -1,3 +1,12 @@
+// The `fifa17` feature compiles this shared crate but activates only the FIFA-17
+// injection path (fifa17.rs + sbc_*): install_hooks() routes to fifa17::install()
+// and the FIFA-23 hook modules are reached solely via install_hooks_fifa23(), which
+// is itself `#[cfg(not(feature = "fifa17"))]`. Those modules are therefore compiled
+// but unused under `fifa17` (the linker strips them from the cdylib). Scope the
+// resulting dead-code/unused-import lints to that feature so both builds stay
+// `-D warnings` clean without dropping code the default (FIFA-23) build needs.
+#![cfg_attr(feature = "fifa17", allow(dead_code, unused_imports))]
+
 mod config;
 mod connect_hook;
 mod connectex_hook;
@@ -11,15 +20,12 @@ mod origin_spy;
 mod probe;
 #[cfg(feature = "capture_baseline")]
 mod recv_hook;
-mod resolver_hook;
 #[cfg(feature = "fifa17")]
 mod sbc_hook;
 #[cfg(feature = "fifa17")]
 mod sbc_request_trace;
 #[cfg(feature = "fifa17")]
 mod sbc_trace;
-#[cfg(feature = "fifa17")]
-mod store_hook;
 mod ssl_patch;
 mod tls_bypass;
 mod transport_watch;
@@ -57,6 +63,13 @@ pub(crate) fn flush_log() {
     }
 }
 
+/// # 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 {
@@ -74,8 +87,8 @@ unsafe fn install_hooks(module: HMODULE) {
     // FIFA-23-specific hook below (they assume FIFA 23's memory layout).
     #[cfg(feature = "fifa17")]
     {
-        fifa17::install(module);
+        let _ = module;
-        return;
+        fifa17::install();
     }
     #[cfg(not(feature = "fifa17"))]
     install_hooks_fifa23(module)
@@ -87,17 +100,8 @@ unsafe fn install_hooks_fifa23(module: HMODULE) {
     // 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();
-    match config::load_config(module).and_then(|c| c.resolve()) {
+    let ip = config::read_redirect_ip(module);
-        Ok(server) => {
+    hooks::set_redirect_ip(ip);
-            hooks::set_redirect_ip(server.redirect_ip.to_string());
-            connect_hook::set_server(server);
-        }
-        Err(e) => {
-            write_log(&format!(
-                "openfut_hook: invalid/missing openfut.cfg ({e}); redirection DISABLED\n"
-            ));
-        }
-    }
 
     let ga = iat::resolve(b"ws2_32.dll\0", b"getaddrinfo\0");
     if !ga.is_null() {

openfut-hook/src/resolver_hook.rs

@@ -1,248 +0,0 @@
-//! DNS-resolver inline detours (getaddrinfo / GetAddrInfoW / gethostbyname).
-//!
-//! WHY THIS EXISTS (FIFA 17): the IAT approach in `hooks.rs` patched **0** slots on
-//! FIFA 17 (`getaddrinfo IAT patched 0+0`) because the game does not import the
-//! resolver through its import table — it resolves EA hostnames via a path the IAT
-//! scan never covers (dynamic `GetProcAddress`, a statically-linked DirtySDK
-//! resolver, or the legacy `gethostbyname`). An IAT patch can only rewrite callers
-//! that go through the table, so it missed every real resolution.
-//!
-//! FIX: detour the resolver **at its export address** in ws2_32.dll, exactly like
-//! `connect_hook` does for `connect`. An inline JMP at the function entry catches
-//! *every* caller regardless of how it found the function. We use the same
-//! unhook → call real → rehook pattern (no trampoline, no RIP relocation).
-//!
-//! We cover three resolvers:
-//!   - `getaddrinfo`   (ANSI, modern)
-//!   - `GetAddrInfoW`  (wide, modern)  — EAWebKit/WinHTTP often use the W variant
-//!   - `gethostbyname` (legacy, DirtySDK-era) — returns a `hostent`
-//!
-//! On an EA hostname we rewrite the query node to the configured redirect IP so the
-//! real resolver returns the bridge's address. The redirect IP string is owned by
-//! `hooks` (set once via `hooks::set_redirect_ip`); we read it back through
-//! `hooks::redirect_ip_cstr()`.
-
-use std::ffi::CStr;
-use std::sync::atomic::{AtomicUsize, Ordering};
-
-use windows_sys::Win32::Networking::WinSock::ADDRINFOA;
-
-// ── EA host classifier (shared logic mirrors hooks::is_ea_host) ────────────────
-
-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")
-        || h.ends_with(".dice.se")
-}
-
-// ── getaddrinfo (ANSI) ────────────────────────────────────────────────────────
-
-type GetaddrinfoFn =
-    unsafe extern "system" fn(*const u8, *const u8, *const ADDRINFOA, *mut *mut ADDRINFOA) -> i32;
-
-static GAI_ADDR: AtomicUsize = AtomicUsize::new(0);
-static mut GAI_ORIG: [u8; 14] = [0u8; 14];
-
-// ── GetAddrInfoW (wide) ───────────────────────────────────────────────────────
-
-type GetAddrInfoWFn = unsafe extern "system" fn(
-    *const u16,
-    *const u16,
-    *const core::ffi::c_void,
-    *mut *mut core::ffi::c_void,
-) -> i32;
-
-static GAIW_ADDR: AtomicUsize = AtomicUsize::new(0);
-static mut GAIW_ORIG: [u8; 14] = [0u8; 14];
-
-// ── gethostbyname (legacy) ────────────────────────────────────────────────────
-
-type GethostbynameFn = unsafe extern "system" fn(*const u8) -> *mut core::ffi::c_void;
-
-static GHBN_ADDR: AtomicUsize = AtomicUsize::new(0);
-static mut GHBN_ORIG: [u8; 14] = [0u8; 14];
-
-// ── inline-hook primitives (identical pattern to connect_hook) ────────────────
-
-unsafe fn write_hook(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);
-    // FF 25 00 00 00 00  JMP [rip+0] ; then 8-byte absolute target
-    target.write(0xFF);
-    target.add(1).write(0x25);
-    (target.add(2) as *mut u32).write(0u32);
-    (target.add(6) as *mut u64).write(dest);
-    VirtualProtect(target as _, 14, old, &mut old);
-}
-
-unsafe fn restore(target: *mut u8, orig: *const u8) {
-    use windows_sys::Win32::System::Memory::{VirtualProtect, PAGE_EXECUTE_READWRITE};
-    let mut old: u32 = 0;
-    VirtualProtect(target as _, 14, PAGE_EXECUTE_READWRITE, &mut old);
-    core::ptr::copy_nonoverlapping(orig, target, 14);
-    VirtualProtect(target as _, 14, old, &mut old);
-}
-
-/// Save the first 14 bytes at `addr` into `orig`, store `addr`, and write the JMP.
-unsafe fn install_one(addr: *mut u8, orig: *mut u8, slot: &AtomicUsize, hook: *const ()) -> bool {
-    if addr.is_null() {
-        return false;
-    }
-    core::ptr::copy_nonoverlapping(addr, orig, 14);
-    slot.store(addr as usize, Ordering::Relaxed);
-    write_hook(addr, hook as u64);
-    true
-}
-
-// ── hooked entry points ───────────────────────────────────────────────────────
-
-pub unsafe extern "system" fn hooked_getaddrinfo(
-    node: *const u8,
-    service: *const u8,
-    hints: *const ADDRINFOA,
-    result: *mut *mut ADDRINFOA,
-) -> i32 {
-    let addr = GAI_ADDR.load(Ordering::Relaxed) as *mut u8;
-    let mut redirected = node;
-    let redirect_cstr = crate::hooks::redirect_ip_cstr();
-
-    if !node.is_null() {
-        if let Ok(host) = CStr::from_ptr(node as *const i8).to_str() {
-            crate::write_log(&format!("resolver: getaddrinfo({host})\n"));
-            if is_ea_host(host) {
-                if let Some(ip) = redirect_cstr {
-                    redirected = ip;
-                    crate::write_log(&format!("resolver: getaddrinfo {host} → redirect\n"));
-                }
-            }
-        }
-    }
-
-    restore(addr, core::ptr::addr_of!(GAI_ORIG) as *const u8);
-    let r = {
-        let f: GetaddrinfoFn = core::mem::transmute(addr);
-        f(redirected, service, hints, result)
-    };
-    write_hook(addr, hooked_getaddrinfo as *const () as u64);
-    r
-}
-
-pub unsafe extern "system" fn hooked_getaddrinfo_w(
-    node: *const u16,
-    service: *const u16,
-    hints: *const core::ffi::c_void,
-    result: *mut *mut core::ffi::c_void,
-) -> i32 {
-    let addr = GAIW_ADDR.load(Ordering::Relaxed) as *mut u8;
-
-    // Decode the wide hostname for classification/logging.
-    let mut redirected_buf: Vec<u16> = Vec::new();
-    let mut redirected = node;
-    if !node.is_null() {
-        let mut len = 0usize;
-        while *node.add(len) != 0 {
-            len += 1;
-        }
-        let host = String::from_utf16_lossy(core::slice::from_raw_parts(node, len));
-        crate::write_log(&format!("resolver: GetAddrInfoW({host})\n"));
-        if is_ea_host(&host) {
-            if let Some(ip) = crate::hooks::redirect_ip_str() {
-                redirected_buf = ip.encode_utf16().chain(core::iter::once(0)).collect();
-                redirected = redirected_buf.as_ptr();
-                crate::write_log(&format!("resolver: GetAddrInfoW {host} → redirect\n"));
-            }
-        }
-    }
-
-    restore(addr, core::ptr::addr_of!(GAIW_ORIG) as *const u8);
-    let r = {
-        let f: GetAddrInfoWFn = core::mem::transmute(addr);
-        f(redirected, service, hints, result)
-    };
-    write_hook(addr, hooked_getaddrinfo_w as *const () as u64);
-    // keep redirected_buf alive until after the call
-    drop(redirected_buf);
-    r
-}
-
-pub unsafe extern "system" fn hooked_gethostbyname(name: *const u8) -> *mut core::ffi::c_void {
-    let addr = GHBN_ADDR.load(Ordering::Relaxed) as *mut u8;
-    let mut redirected = name;
-    let redirect_cstr = crate::hooks::redirect_ip_cstr();
-
-    if !name.is_null() {
-        if let Ok(host) = CStr::from_ptr(name as *const i8).to_str() {
-            crate::write_log(&format!("resolver: gethostbyname({host})\n"));
-            if is_ea_host(host) {
-                if let Some(ip) = redirect_cstr {
-                    redirected = ip;
-                    crate::write_log(&format!("resolver: gethostbyname {host} → redirect\n"));
-                }
-            }
-        }
-    }
-
-    restore(addr, core::ptr::addr_of!(GHBN_ORIG) as *const u8);
-    let r = {
-        let f: GethostbynameFn = core::mem::transmute(addr);
-        f(redirected)
-    };
-    write_hook(addr, hooked_gethostbyname as *const () as u64);
-    r
-}
-
-// ── installer ─────────────────────────────────────────────────────────────────
-
-/// Install inline detours on all three resolvers. Returns a (ok, total) count for
-/// logging. Safe to call once from the fifa17 worker after ws2_32 is loaded.
-pub unsafe fn install_resolver_hooks() -> (u32, u32) {
-    let mut ok = 0u32;
-    let total = 3u32;
-
-    let gai = crate::iat::resolve(b"ws2_32.dll\0", b"getaddrinfo\0") as *mut u8;
-    if install_one(
-        gai,
-        core::ptr::addr_of_mut!(GAI_ORIG) as *mut u8,
-        &GAI_ADDR,
-        hooked_getaddrinfo as *const (),
-    ) {
-        ok += 1;
-        crate::write_log("resolver: getaddrinfo inline-hooked\n");
-    } else {
-        crate::write_log("resolver: getaddrinfo resolve FAILED\n");
-    }
-
-    let gaiw = crate::iat::resolve(b"ws2_32.dll\0", b"GetAddrInfoW\0") as *mut u8;
-    if install_one(
-        gaiw,
-        core::ptr::addr_of_mut!(GAIW_ORIG) as *mut u8,
-        &GAIW_ADDR,
-        hooked_getaddrinfo_w as *const (),
-    ) {
-        ok += 1;
-        crate::write_log("resolver: GetAddrInfoW inline-hooked\n");
-    } else {
-        crate::write_log("resolver: GetAddrInfoW resolve FAILED\n");
-    }
-
-    let ghbn = crate::iat::resolve(b"ws2_32.dll\0", b"gethostbyname\0") as *mut u8;
-    if install_one(
-        ghbn,
-        core::ptr::addr_of_mut!(GHBN_ORIG) as *mut u8,
-        &GHBN_ADDR,
-        hooked_gethostbyname as *const (),
-    ) {
-        ok += 1;
-        crate::write_log("resolver: gethostbyname inline-hooked\n");
-    } else {
-        crate::write_log("resolver: gethostbyname resolve FAILED\n");
-    }
-
-    (ok, total)
-}

openfut-hook/src/sbc_hook.rs

@@ -313,12 +313,12 @@ 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;
     }

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

@@ -839,7 +839,7 @@ 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 +926,7 @@ 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 +1029,7 @@ 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;
         }

openfut-hook/src/ssl_patch.rs

@@ -67,7 +67,7 @@ fn patch_module(module: isize, scan_bytes: usize) -> bool {
 
 /// 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;
+    let module = GetModuleHandleA(c"EAWebKit.dll".as_ptr().cast()) as isize;
     // EAWebKit.dll is ~22 MB
     patch_module(module, 24 * 1024 * 1024)
 }

openfut-hook/src/store_hook.rs

@@ -1,445 +0,0 @@
-//! FIFA 17 empty-"My Packs" client fix (config flag `store_mypacks_fix=1`).
-//!
-//! ## What this does
-//! When the account owns **zero unopened packs**, FIFA 17's Store still selects the
-//! "My Packs" category on open. CardsDLL's category resolver (`FUN_1800147f0` →
-//! `FUN_180014420`) then looks up the My-Packs group ordinal and, if no such group
-//! exists, dereferences a NULL group pointer → crash (`0x180014882`, read of `0x48`).
-//! The backend currently avoids this with an active placeholder pack (sentinel 65534)
-//! that leaves a fake empty tile.
-//!
-//! This hook removes the need for that sentinel *for a validated build*: it detours the
-//! Store render entry `FUN_18007dab0` and, **only when the requested category is My Packs
-//! AND the client's unopened-pack count is 0**, rewrites the requested category id at
-//! `screen+0x290` to `0` (list-all = "Browse Packs"). The Store then opens on Browse
-//! Packs, never resolves the absent My-Packs group, and neither crashes nor shows a fake
-//! tile. With a real unopened pack (count > 0) nothing is changed and My Packs works
-//! normally.
-//!
-//! ## Safety model
-//! - **Inert unless enabled**: reads `store_mypacks_fix` from `openfut.cfg`; default OFF.
-//! - **Validated build only**: refuses to install unless CardsDLL matches the known FIFA
-//!   17 build (PE timestamp + SizeOfImage + a slide-proof control prologue + the target
-//!   function's own prologue signature). An unknown build → no patch, log, and the
-//!   backend sentinel remains the fallback.
-//! - **Deferred**: CardsDLL loads lazily on entering Ultimate Team, so we poll off the
-//!   loader lock, exactly like `sbc_hook`.
-//! - **Fail-safe count**: if the unopened-pack count cannot be read, we DO NOT redirect
-//!   (leave the category unchanged and call the original) — never a forced Browse.
-//! - **Inline detour**: same proven `unhook → call real → rehook` primitive as
-//!   `resolver_hook`/`connect_hook` (no trampoline, no RIP relocation).
-//!
-//! Addresses are RVAs (static VA − image base `0x180000000`); see
-//! `docs/plans/FIFA17_EMPTY_MYPACKS_CLIENT_FIX.md` PART II for the disassembly evidence.
-
-use core::sync::atomic::{AtomicBool, AtomicUsize, Ordering};
-
-use windows_sys::Win32::Foundation::HMODULE;
-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_READONLY,
-    PAGE_READWRITE, PAGE_WRITECOPY,
-};
-
-// ── Build identity (verified against CardsDLL_Win64_retail.dll 4706a881…) ────────
-const IMAGE_BASE: usize = 0x1_8000_0000;
-const PE_TIMESTAMP: u32 = 1_497_050_156; // 2017-06-09T23:15:56Z
-const SIZE_OF_IMAGE: u32 = 0x31d000;
-/// Slide-proof FNV-hasher control prologue at VA 0x180180d00 (same control sbc_hook uses).
-const CTRL_RVA: usize = 0x180d00;
-const CTRL_BYTES: [u8; 12] = [
-    0x48, 0x83, 0xec, 0x28, 0x48, 0x85, 0xc9, 0x74, 0x50, 0x45, 0x33, 0xc0,
-];
-
-// ── Target + helper RVAs ─────────────────────────────────────────────────────────
-/// FUN_18007dab0 — Store render entry (Flash message 0x753f). arg0 = store screen (RCX).
-const RENDER_RVA: usize = 0x7dab0;
-/// First 14 bytes of FUN_18007dab0 (PUSH RDI; SUB RSP,0x40; MOV [RSP+0x30],-2 …).
-/// Doubles as the target-site signature and the bytes we save/restore for the detour.
-const RENDER_PROLOGUE: [u8; 14] = [
-    0x40, 0x57, 0x48, 0x83, 0xec, 0x40, 0x48, 0xc7, 0x44, 0x24, 0x30, 0xfe, 0xff, 0xff,
-];
-/// FUN_180014580(store, tab) → category id (1-based group ordinal, or -1 if absent).
-const TABMAP_RVA: usize = 0x14580;
-/// FUN_1800d7170() → registry (no args).
-const REGISTRY_GETTER_RVA: usize = 0xd7170;
-/// FUN_180009c80(out, registry, 0, 0) → writes the data-manager singleton into *out.
-const MANAGER_GETTER_RVA: usize = 0x9c80;
-/// manager->vtbl[+0x4d8]() → unopened-pack count (i32).
-const UNOPENED_COUNT_VSLOT: usize = 0x4d8;
-/// manager->vtbl[+0x08]() → release.
-const RELEASE_VSLOT: usize = 0x08;
-/// screen+0x290 = requested CATEGORY_ID (movie-written; the resolver's input).
-const SCREEN_CATEGORY_OFF: usize = 0x290;
-/// FUN_180014580 tab index for "mypacks".
-const MYPACKS_TAB: u32 = 0;
-/// Category 0 = list-all group tiles = "Browse Packs".
-const CAT_BROWSE: i32 = 0;
-
-// ── State ────────────────────────────────────────────────────────────────────────
-static ENABLED: AtomicBool = AtomicBool::new(false);
-static INSTALLED: AtomicBool = AtomicBool::new(false);
-static CARDS_BASE: AtomicUsize = AtomicUsize::new(0);
-static RENDER_ADDR: AtomicUsize = AtomicUsize::new(0);
-static mut RENDER_ORIG: [u8; 14] = [0u8; 14];
-
-// ── Internal CardsDLL function types (MS x64 ABI) ─────────────────────────────────
-type RegistryGetterFn = unsafe extern "system" fn() -> usize;
-type ManagerGetterFn = unsafe extern "system" fn(*mut usize, usize, usize, usize) -> *mut usize;
-type TabMapFn = unsafe extern "system" fn(usize, u32) -> u32;
-type CountGetterFn = unsafe extern "system" fn(usize) -> i32;
-type ReleaseFn = unsafe extern "system" fn(usize);
-type RenderFn = unsafe extern "system" fn(usize) -> usize;
-
-// ── Pure decision (host-testable; the correctness core) ───────────────────────────
-/// Redirect the Store to Browse Packs iff the feature is enabled, the requested
-/// category is exactly the My-Packs category, and the client owns zero unopened packs.
-/// A `None` count (read failed) is treated as "do not redirect".
-fn should_redirect(enabled: bool, count: Option<i32>, requested: i32, mypacks: i32) -> bool {
-    enabled && requested == mypacks && count == Some(0)
-}
-
-// ── Guarded memory access (no blind dereferences) ─────────────────────────────────
-unsafe fn readable(ptr: usize, len: usize) -> bool {
-    if ptr < 0x1_0000 || len == 0 {
-        return false;
-    }
-    let mut mbi: MEMORY_BASIC_INFORMATION = core::mem::zeroed();
-    let n = VirtualQuery(
-        ptr as _,
-        &mut mbi,
-        core::mem::size_of::<MEMORY_BASIC_INFORMATION>(),
-    );
-    if n == 0 || mbi.State != MEM_COMMIT {
-        return false;
-    }
-    let prot = mbi.Protect;
-    if prot & PAGE_GUARD != 0 || prot == PAGE_NOACCESS {
-        return false;
-    }
-    const READABLE: u32 = PAGE_READONLY
-        | PAGE_READWRITE
-        | PAGE_WRITECOPY
-        | PAGE_EXECUTE_READ
-        | PAGE_EXECUTE_READWRITE
-        | PAGE_EXECUTE_WRITECOPY;
-    if prot & READABLE == 0 {
-        return false;
-    }
-    let region_end = mbi.BaseAddress as usize + mbi.RegionSize;
-    ptr.checked_add(len).is_some_and(|end| end <= region_end)
-}
-
-unsafe fn writable(ptr: usize, len: usize) -> bool {
-    if ptr < 0x1_0000 || len == 0 {
-        return false;
-    }
-    let mut mbi: MEMORY_BASIC_INFORMATION = core::mem::zeroed();
-    let n = VirtualQuery(
-        ptr as _,
-        &mut mbi,
-        core::mem::size_of::<MEMORY_BASIC_INFORMATION>(),
-    );
-    if n == 0 || mbi.State != MEM_COMMIT {
-        return false;
-    }
-    let prot = mbi.Protect;
-    if prot & PAGE_GUARD != 0 {
-        return false;
-    }
-    const WRITABLE: u32 =
-        PAGE_READWRITE | PAGE_WRITECOPY | PAGE_EXECUTE_READWRITE | PAGE_EXECUTE_WRITECOPY;
-    if prot & WRITABLE == 0 {
-        return false;
-    }
-    let region_end = mbi.BaseAddress as usize + mbi.RegionSize;
-    ptr.checked_add(len).is_some_and(|end| end <= region_end)
-}
-
-unsafe fn executable(ptr: usize) -> bool {
-    if ptr < 0x1_0000 {
-        return false;
-    }
-    let mut mbi: MEMORY_BASIC_INFORMATION = core::mem::zeroed();
-    let n = VirtualQuery(
-        ptr as _,
-        &mut mbi,
-        core::mem::size_of::<MEMORY_BASIC_INFORMATION>(),
-    );
-    if n == 0 || mbi.State != MEM_COMMIT {
-        return false;
-    }
-    const EXEC: u32 = PAGE_EXECUTE_READ | PAGE_EXECUTE_READWRITE | PAGE_EXECUTE_WRITECOPY;
-    mbi.Protect & PAGE_GUARD == 0 && mbi.Protect & EXEC != 0
-}
-
-unsafe fn read_u8(ptr: usize) -> Option<u8> {
-    readable(ptr, 1).then(|| *(ptr as *const u8))
-}
-
-unsafe fn read_u32(ptr: usize) -> Option<u32> {
-    (ptr & 3 == 0 && readable(ptr, 4)).then(|| *(ptr as *const u32))
-}
-
-unsafe fn read_ptr(ptr: usize) -> Option<usize> {
-    (ptr & 7 == 0 && readable(ptr, 8)).then(|| *(ptr as *const usize))
-}
-
-unsafe fn bytes_match(addr: usize, want: &[u8]) -> bool {
-    want.iter()
-        .enumerate()
-        .all(|(i, &b)| read_u8(addr + i) == Some(b))
-}
-
-// ── Inline-hook primitive (identical to resolver_hook/connect_hook) ───────────────
-unsafe fn write_hook(target: *mut u8, dest: u64) {
-    let mut old: u32 = 0;
-    VirtualProtect(target as _, 14, PAGE_EXECUTE_READWRITE, &mut old);
-    // FF 25 00 00 00 00  JMP [rip+0] ; then 8-byte absolute target
-    target.write(0xFF);
-    target.add(1).write(0x25);
-    (target.add(2) as *mut u32).write(0u32);
-    (target.add(6) as *mut u64).write(dest);
-    VirtualProtect(target as _, 14, old, &mut old);
-}
-
-unsafe fn restore(target: *mut u8, orig: *const u8) {
-    let mut old: u32 = 0;
-    VirtualProtect(target as _, 14, PAGE_EXECUTE_READWRITE, &mut old);
-    core::ptr::copy_nonoverlapping(orig, target, 14);
-    VirtualProtect(target as _, 14, old, &mut old);
-}
-
-// ── Runtime helpers ────────────────────────────────────────────────────────────
-unsafe fn resolve_cards_base() -> usize {
-    let h = GetModuleHandleA(c"CardsDLL_Win64_retail.dll".as_ptr() as *const u8);
-    if !h.is_null() {
-        return h as usize;
-    }
-    let h2 = GetModuleHandleA(c"CardsDLL.dll".as_ptr() as *const u8);
-    if !h2.is_null() {
-        return h2 as usize;
-    }
-    0
-}
-
-/// Read the client's unopened-pack count via the data-manager singleton
-/// (`registry → manager → vtbl[0x4d8]`), releasing the manager afterwards. Returns
-/// `None` on any unreadable pointer/vtable so the caller never redirects on a bad read.
-unsafe fn read_unopened_count(base: usize) -> Option<i32> {
-    if !executable(base + REGISTRY_GETTER_RVA) || !executable(base + MANAGER_GETTER_RVA) {
-        return None;
-    }
-    let registry_getter: RegistryGetterFn = core::mem::transmute(base + REGISTRY_GETTER_RVA);
-    let registry = registry_getter();
-    if registry == 0 {
-        return None;
-    }
-    let manager_getter: ManagerGetterFn = core::mem::transmute(base + MANAGER_GETTER_RVA);
-    let mut out: usize = 0;
-    manager_getter(&mut out, registry, 0, 0);
-    let manager = out;
-    if manager == 0 {
-        return None;
-    }
-    let vtbl = read_ptr(manager)?;
-    let count_fn = read_ptr(vtbl + UNOPENED_COUNT_VSLOT)?;
-    let release_fn = read_ptr(vtbl + RELEASE_VSLOT)?;
-    if !executable(count_fn) || !executable(release_fn) {
-        return None;
-    }
-    let getter: CountGetterFn = core::mem::transmute(count_fn);
-    let count = getter(manager);
-    let release: ReleaseFn = core::mem::transmute(release_fn);
-    release(manager);
-    Some(count)
-}
-
-/// The redirect decision + write, executed before the original render runs.
-unsafe fn maybe_redirect(store: usize) {
-    if store == 0 {
-        return;
-    }
-    let base = CARDS_BASE.load(Ordering::Relaxed);
-    if base == 0 {
-        return;
-    }
-    let cat_ptr = store + SCREEN_CATEGORY_OFF;
-    if !readable(cat_ptr, 4) {
-        return;
-    }
-    let requested = *(cat_ptr as *const i32);
-    if !executable(base + TABMAP_RVA) {
-        return;
-    }
-    let tabmap: TabMapFn = core::mem::transmute(base + TABMAP_RVA);
-    let mypacks_id = tabmap(store, MYPACKS_TAB) as i32;
-    // Only pay for the count read when the requested category is actually My Packs.
-    if requested != mypacks_id {
-        return;
-    }
-    let count = read_unopened_count(base);
-    if should_redirect(
-        ENABLED.load(Ordering::Relaxed),
-        count,
-        requested,
-        mypacks_id,
-    ) {
-        if writable(cat_ptr, 4) {
-            *(cat_ptr as *mut i32) = CAT_BROWSE;
-            crate::write_log("[store-hook] zero unopened packs: My Packs -> Browse Packs\n");
-        } else {
-            crate::write_log("[store-hook] category slot not writable; left unchanged\n");
-        }
-    }
-    // requested == mypacks with count > 0 or unknown: leave My Packs unchanged.
-}
-
-pub unsafe extern "system" fn hooked_render(store: usize) -> usize {
-    let addr = RENDER_ADDR.load(Ordering::Relaxed) as *mut u8;
-    if addr.is_null() {
-        return 0;
-    }
-    maybe_redirect(store);
-    restore(addr, core::ptr::addr_of!(RENDER_ORIG) as *const u8);
-    let r = {
-        let f: RenderFn = core::mem::transmute(addr as *const ());
-        f(store)
-    };
-    write_hook(addr, hooked_render as *const () as u64);
-    r
-}
-
-// ── Build guard + install ─────────────────────────────────────────────────────
-unsafe fn build_supported(base: usize) -> bool {
-    let fail = |why: &str| {
-        crate::write_log(&format!(
-            "[store-hook] CardsDLL build UNSUPPORTED ({why}); not installing (backend sentinel remains)\n"
-        ));
-        false
-    };
-    let Some(e_lfanew) = read_u32(base + 0x3c) else {
-        return fail("PE header unreadable");
-    };
-    let pe = base + e_lfanew as usize;
-    if read_u32(pe) != Some(0x0000_4550) {
-        return fail("PE signature");
-    }
-    if read_u32(pe + 8) != Some(PE_TIMESTAMP) {
-        return fail("PE timestamp");
-    }
-    if read_u32(pe + 24 + 0x38) != Some(SIZE_OF_IMAGE) {
-        return fail("SizeOfImage");
-    }
-    if !bytes_match(base + CTRL_RVA, &CTRL_BYTES) {
-        return fail("control prologue");
-    }
-    if !bytes_match(base + RENDER_RVA, &RENDER_PROLOGUE) {
-        return fail("FUN_18007dab0 prologue");
-    }
-    true
-}
-
-/// Deferred worker: CardsDLL loads only on entering Ultimate Team, so poll for it
-/// (≤5 min) off the loader lock, then validate the build and install the detour once.
-unsafe fn worker() {
-    let mut base = 0usize;
-    for _ in 0..600u32 {
-        base = resolve_cards_base();
-        if base != 0 {
-            break;
-        }
-        std::thread::sleep(std::time::Duration::from_millis(500));
-    }
-    if base == 0 {
-        crate::write_log("[store-hook] CardsDLL never loaded; hook not installed\n");
-        return;
-    }
-    let slide = base.wrapping_sub(IMAGE_BASE);
-    crate::write_log(&format!(
-        "[store-hook] CardsDLL base={base:#x} slide={slide:#x}; validating build\n"
-    ));
-    if !build_supported(base) {
-        return;
-    }
-    CARDS_BASE.store(base, Ordering::Relaxed);
-    let render = base + RENDER_RVA;
-    core::ptr::copy_nonoverlapping(
-        render as *const u8,
-        core::ptr::addr_of_mut!(RENDER_ORIG) as *mut u8,
-        14,
-    );
-    RENDER_ADDR.store(render, Ordering::Relaxed);
-    write_hook(render as *mut u8, hooked_render as *const () as u64);
-    INSTALLED.store(true, Ordering::Relaxed);
-    crate::write_log(&format!(
-        "[store-hook] build supported; installed at CardsDLL+{RENDER_RVA:#x} (VA {render:#x})\n"
-    ));
-}
-
-/// Public entry, called from `fifa17::worker`. Reads `store_mypacks_fix` from
-/// `openfut.cfg`; if enabled, spawns the deferred CardsDLL-load worker. Fully inert
-/// otherwise (no thread, no patch).
-pub fn install(module: HMODULE) {
-    let enabled = match crate::config::feature_value(module, "store_mypacks_fix").as_deref() {
-        Some("1") => true,
-        Some("0") | None => false,
-        Some(other) => {
-            crate::write_log(&format!(
-                "[store-hook] invalid store_mypacks_fix={other:?}; feature disabled\n"
-            ));
-            false
-        }
-    };
-    ENABLED.store(enabled, Ordering::Relaxed);
-    if !enabled {
-        crate::write_log("[store-hook] disabled (set store_mypacks_fix=1 in openfut.cfg)\n");
-        return;
-    }
-    crate::write_log("[store-hook] enabled; deferring until CardsDLL loads\n");
-    std::thread::spawn(|| unsafe { worker() });
-}
-
-#[cfg(test)]
-mod tests {
-    use super::should_redirect;
-
-    #[test]
-    fn disabled_never_redirects() {
-        assert!(!should_redirect(false, Some(0), 3, 3));
-    }
-
-    #[test]
-    fn enabled_zero_mypacks_redirects() {
-        assert!(should_redirect(true, Some(0), 3, 3));
-    }
-
-    #[test]
-    fn enabled_one_pack_keeps_mypacks() {
-        assert!(!should_redirect(true, Some(1), 3, 3));
-    }
-
-    #[test]
-    fn enabled_zero_browse_untouched() {
-        // requested Browse (0) != mypacks ordinal (3)
-        assert!(!should_redirect(true, Some(0), 0, 3));
-    }
-
-    #[test]
-    fn enabled_zero_other_tab_untouched() {
-        // e.g. bronze ordinal 4 != mypacks 3
-        assert!(!should_redirect(true, Some(0), 4, 3));
-    }
-
-    #[test]
-    fn enabled_unknown_count_does_not_redirect() {
-        assert!(!should_redirect(true, None, 3, 3));
-    }
-
-    #[test]
-    fn enabled_zero_absent_mypacks_group_redirects() {
-        // With no sentinel, both the requested id and mypacks id are -1 (group absent).
-        assert!(should_redirect(true, Some(0), -1, -1));
-    }
-}

openfut-hook/src/transport_watch.rs

@@ -152,7 +152,7 @@ pub unsafe fn note_connect(api: &str, name: *const u8, namelen: i32, s: usize) {
         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,

src/account_sync.rs

@@ -0,0 +1,177 @@
+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);
+
+#[derive(Debug, Serialize)]
+#[serde(rename_all = "camelCase")]
+struct AccountSyncRequest<'a> {
+    persona_id: u64,
+    persona_name: &'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, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct AccountSummary {
+    pub persona_id: u64,
+    pub persona_name: String,
+    pub level: u32,
+    pub experience: u32,
+    pub account_funds: 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 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(&AccountSyncRequest {
+        persona_id: config.fut_persona_id,
+        persona_name: 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,
+    })
+    .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 body = &response[separator + 4..];
+    if !(200..300).contains(&status) {
+        let detail = String::from_utf8_lossy(body);
+        return Err(format!(
+            "account server rejected sync (HTTP {status}): {detail}"
+        ));
+    }
+    let envelope: AccountSyncResult = serde_json::from_slice(body)
+        .map_err(|error| format!("account server returned invalid JSON: {error}"))?;
+    if envelope.account.persona_id != config.fut_persona_id {
+        return Err(format!(
+            "account server selected persona {} instead of {}",
+            envelope.account.persona_id, config.fut_persona_id
+        ));
+    }
+    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();
+    }
+}

src/arm.rs

@@ -0,0 +1,239 @@
+//! 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.
+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.
+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`.
+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.
+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 the Config tab before arming.");
+    }
+    let ea_ip = cfg.ea_redirect_probe_ip.trim();
+    if ea_ip.is_empty() {
+        anyhow::bail!("Set the EA redirector IP (Config tab) before arming.");
+    }
+    if cfg.ea_hostnames.is_empty() {
+        anyhow::bail!("Add at least one EA hostname (e.g. easw.easports.com) in the Config tab 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(test)]
+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 +1,101 @@
 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 {
+        !self.runner.trim().is_empty()
+            && !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> {
+        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());
+        }
+        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 {
@@ -15,8 +112,104 @@ pub struct LauncherConfig {
     pub hook_dll_path: String,
     /// FIFA 23 game folder inside the Proton prefix (where the DLL is deployed).
     pub fifa_game_dir: String,
-    /// IP the hook DLL redirects EA hostnames to (written to openfut.cfg).
+    /// The OpenFUT server FIFA's EA traffic is redirected to. IPv4 literal or
-    pub hook_redirect_ip: String,
+    /// 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>,
+
+    // ── FIFA 17 local companion services (client-side, run on THIS machine) ──
+    // FIFA 17's FUT flow needs two pieces that are inherently local to the game
+    // box and cannot move to the server: the LSX Origin emulator (the game dials
+    // it on the hardcoded loopback 127.0.0.1:4216) and autopatch (patches
+    // FIFA17.exe process memory for ProtoSSL cert-verify). The launcher manages
+    // both as child processes. The heavy responders (Blaze/UTAS/roster/POW) run
+    // in the server container; these two stay here.
+    /// Directory holding the FIFA 17 Python responders (fifa17-recon `tools/`).
+    /// Empty means the local-services feature is unconfigured and its controls
+    /// stay disabled.
+    #[serde(default)]
+    pub fifa17_tools_dir: String,
+    /// Python interpreter used to run the local companion services.
+    #[serde(default = "default_python")]
+    pub fifa17_python: String,
+}
+
+fn default_python() -> String {
+    "python3".to_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 {
@@ -57,7 +250,32 @@ impl Default for LauncherConfig {
                 .unwrap_or_default()
                 .to_string_lossy()
                 .into(),
-            hook_redirect_ip: "127.0.0.1".into(),
+            // 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(),
+            fifa17_tools_dir: base
+                .join("fifa17-recon/tools")
+                .to_string_lossy()
+                .into(),
+            fifa17_python: default_python(),
         }
     }
 }
@@ -88,22 +306,391 @@ impl LauncherConfig {
         }
     }
 
-    pub fn core_env(&self) -> Vec<(String, String)> {
+    /// The (host, port) the health monitor should poll, or None when no server
-        vec![
+    /// is configured. Uses the bridge HTTPS port — the port the FIFA client
-            ("DATABASE_URL".into(), self.core_database_url.clone()),
+    /// actually connects to — so "reachable" means what the game will see.
-            ("DATA_DIR".into(), self.core_data_dir.clone()),
+    pub fn health_target(&self) -> Option<(String, u16)> {
-            ("LISTEN_ADDR".into(), self.core_listen_addr.clone()),
+        let host = self.openfut_server_host.trim();
-            ("RUST_LOG".into(), "openfut_core=info,tower_http=info".into()),
+        if host.is_empty() {
-        ]
+            None
+        } else {
+            Some((host.to_string(), self.openfut_https_port))
+        }
     }
 
-    pub fn bridge_env(&self) -> Vec<(String, String)> {
+    /// Build the shared [`ServerConfig`] from the launcher's configured server
-        vec![
+    /// host + destination ports. This is the single place the launcher turns UI
-            ("CORE_URL".into(), self.bridge_core_url.clone()),
+    /// fields into the canonical config consumed by the hook.
-            ("LISTEN_ADDR".into(), self.bridge_listen_addr.clone()),
+    pub fn server_config(&self) -> openfut_common::ServerConfig {
-            ("CAPTURES_DIR".into(), self.bridge_captures_dir.clone()),
+        openfut_common::ServerConfig {
-            ("TLS_ENABLED".into(), self.bridge_tls_enabled.to_string()),
+            host: self.openfut_server_host.trim().to_string(),
-            ("RUST_LOG".into(), "openfut_bridge=info".into()),
+            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 the client-local FIFA 17 service configuration. Filesystem
+    /// existence is checked by the process launcher immediately before spawn;
+    /// this ensures required user configuration is never silently invented.
+    pub fn validate_local_services(&self) -> Result<(), String> {
+        if self.fifa17_tools_dir.trim().is_empty() {
+            return Err("No FIFA 17 tools dir configured. Set it in the Config tab.".into());
+        }
+        if self.fifa17_python.trim().is_empty() {
+            return Err("No Python interpreter configured. Set it in the Config tab.".into());
+        }
+        Ok(())
+    }
+
+    /// 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 the Config tab."
+                    .into(),
+            );
+        }
+        self.validate_local_services()
+    }
+
+    pub fn validate_account(&self) -> Result<(), String> {
+        if self.fut_persona_id == 0 {
+            return Err("No EA persona ID configured. Set the account in the Config tab.".into());
+        }
+        if self.fut_persona_name.trim().is_empty() {
+            return Err("No EA persona name configured. Set the account in the Config tab.".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(())
+    }
+
+    /// 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 local_services_require_tools_dir_and_python() {
+        let mut c = LauncherConfig::default();
+        c.fifa17_tools_dir.clear();
+        assert!(c
+            .validate_local_services()
+            .unwrap_err()
+            .contains("tools dir"));
+
+        c.fifa17_tools_dir = "/tmp/fifa17-tools".into();
+        c.fifa17_python.clear();
+        assert!(c.validate_local_services().unwrap_err().contains("Python"));
+    }
+
+    #[test]
+    fn local_services_accept_explicit_configuration() {
+        let c = LauncherConfig {
+            fifa17_tools_dir: "/tmp/fifa17-tools".into(),
+            fifa17_python: "/usr/bin/python3".into(),
+            ..LauncherConfig::default()
+        };
+        assert!(c.validate_local_services().is_ok());
+    }
+
+    #[test]
+    fn launch_config_requires_server_local_services_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();
+        c.fifa17_tools_dir.clear();
+        assert!(c
+            .validate_launch_config()
+            .unwrap_err()
+            .contains("tools dir"));
+
+        c.fifa17_tools_dir = "/home/alex/Documents/OpenFUT/fifa17-recon/tools".into();
+        c.fifa17_python = "/usr/bin/python3".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(),
+            fifa17_tools_dir: "/tmp/tools".into(),
+            fifa17_python: "/usr/bin/python3".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(),
+            fifa17_tools_dir: "/tmp/tools".into(),
+            fifa17_python: "/usr/bin/python3".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();
+        assert!(c.validate_account().unwrap_err().contains("persona ID"));
+        c.fut_persona_id = 12345678;
+        assert!(c.validate_account().unwrap_err().contains("persona name"));
+        c.fut_persona_name = "TEST_USER".into();
+        assert!(c.validate_account().is_ok());
+        c.fut_account_experience = 1001;
+        assert!(c.validate_account().unwrap_err().contains("XP"));
     }
 }

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 +1,449 @@
+//! 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 std::io::{BufRead, BufReader};
+use std::path::{Path, PathBuf};
+use std::process::{Child, Command, Stdio};
+use std::sync::{Arc, Mutex};
+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().unwrap().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.
+pub fn launch(profile: &GameProfile, log: &Log) -> 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_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);
+    }
+    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.");
+    Ok(())
+}
+
+/// 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.
+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.
+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.)
+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.
+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.
+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) {
+    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().unwrap().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().unwrap().push(line);
+            }
+        });
+    }
+    std::thread::spawn(move || {
+        let _ = child.wait();
+        log.lock().unwrap().push(exit_msg.to_string());
+    });
+}
+
+#[cfg(test)]
+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}");
+    }
+}

src/health.rs

@@ -0,0 +1,133 @@
+//! 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 std::{
+    net::{TcpStream, ToSocketAddrs},
+    sync::{
+        atomic::{AtomicBool, Ordering},
+        Arc, Mutex,
+    },
+    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().unwrap().clone();
+                match target {
+                    None => {
+                        *t_state.lock().unwrap() = HealthState::default();
+                    }
+                    Some((host, port)) => {
+                        let snapshot = probe(&host, port);
+                        *t_state.lock().unwrap() = 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().unwrap() = target;
+    }
+
+    pub fn snapshot(&self) -> HealthState {
+        self.state.lock().unwrap().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/local_services.rs

@@ -0,0 +1,429 @@
+//! 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 std::{
+    net::{Ipv4Addr, SocketAddr, SocketAddrV4, TcpListener},
+    path::Path,
+    process::{Child, Command, Stdio},
+    sync::{mpsc, Arc, Mutex},
+    time::{Duration, Instant},
+};
+
+use std::os::unix::process::CommandExt;
+
+use crate::fifa17_capability::{
+    parse_capability_line, parse_fifa_pid, register, Fifa17ClientCapabilities,
+};
+use crate::logs::LogBuffer;
+
+#[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, 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 responder script filename inside the tools dir.
+    fn script(self) -> &'static str {
+        match self {
+            Service::Lsx => "lsx_responder_v2.py",
+            Service::Autopatch => "autopatch.py",
+        }
+    }
+}
+
+fn command_parts(service: Service, python: &str, tools_dir: &Path) -> CommandParts {
+    let mut args = vec![tools_dir
+        .join(service.script())
+        .to_string_lossy()
+        .into_owned()];
+    if service == Service::Autopatch {
+        args.extend(["--launcher-pid".to_string(), std::process::id().to_string()]);
+    }
+    CommandParts {
+        program: python.to_string(),
+        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()
+                        .unwrap()
+                        .push(format!("[launcher] {label} stopped."));
+                    self.stopping = None;
+                    return false;
+                }
+                Ok(Err(error)) => {
+                    log.lock()
+                        .unwrap()
+                        .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().unwrap().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()
+                        .unwrap()
+                        .push(format!("[launcher] {label} exited ({status})."));
+                    self.child = None;
+                    false
+                }
+                Err(_) => true,
+            },
+        }
+    }
+
+    pub fn stopping(&self) -> bool {
+        self.stopping.is_some()
+    }
+
+    /// 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()
+                .unwrap()
+                .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>>,
+}
+
+/// Spawn a companion service. `python` is the interpreter, `tools_dir` the
+/// directory holding the responder scripts. Streams stdout+stderr into `log`.
+/// Returns an error (without spawning) if the tools dir or script is missing.
+///
+/// `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,
+    python: &str,
+    tools_dir: &str,
+    persona_id: u64,
+    persona_name: &str,
+    capability: Option<CapabilityWiring>,
+    log: Arc<Mutex<LogBuffer>>,
+) -> anyhow::Result<Child> {
+    use std::io::{BufRead, BufReader};
+
+    let dir = Path::new(tools_dir);
+    if !dir.is_dir() {
+        anyhow::bail!(
+            "FIFA 17 tools dir not found: {} (set it in the Config tab)",
+            dir.display()
+        );
+    }
+    let script_path = dir.join(service.script());
+    if !script_path.exists() {
+        anyhow::bail!(
+            "{} not found in tools dir: {}",
+            service.script(),
+            script_path.display()
+        );
+    }
+
+    let label = service.label();
+
+    // Both services use the configured interpreter and absolute script path;
+    // neither invents a Python installation path. Autopatch receives launcher
+    // ownership and a per-user runtime log so stale root-owned /tmp files cannot
+    // block startup.
+    let parts = command_parts(service, python, dir);
+    let mut cmd = Command::new(&parts.program);
+    cmd.args(&parts.args);
+    if service == Service::Lsx {
+        cmd.env("FUT_PERSONA_ID", persona_id.to_string())
+            .env("FUT_PERSONA_NAME", persona_name);
+    } else if service == Service::Autopatch {
+        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.
+    cmd.process_group(0);
+    cmd.current_dir(dir)
+        .stdout(Stdio::piped())
+        .stderr(Stdio::piped());
+
+    log.lock().unwrap().push(format!(
+        "[launcher] starting {label}: {} {}",
+        python,
+        script_path.display(),
+    ));
+
+    let mut child = cmd
+        .spawn()
+        .map_err(|e| anyhow::anyhow!("failed to start {label} ({}): {e}", service.script()))?;
+
+    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().unwrap().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().unwrap().empty_mypacks_resolver = Some(version);
+                {
+                    let mut log = buf.lock().unwrap();
+                    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()
+                        .unwrap()
+                        .push("[fifa17] capability registered with backend".to_string()),
+                    Err(error) => buf
+                        .lock()
+                        .unwrap()
+                        .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().unwrap().push(format!("[{lbl}] {line}"));
+            }
+        });
+    }
+
+    if service == Service::Lsx {
+        let address = SocketAddr::V4(SocketAddrV4::new(Ipv4Addr::LOCALHOST, 4216));
+        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()
+            .unwrap()
+            .push("[launcher] LSX ready on 127.0.0.1:4216".to_string());
+    }
+
+    Ok(child)
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn lsx_runs_python_directly() {
+        let parts = command_parts(Service::Lsx, "/usr/bin/python3", Path::new("/tmp/tools"));
+        assert_eq!(parts.program, "/usr/bin/python3");
+        assert_eq!(parts.args, vec!["/tmp/tools/lsx_responder_v2.py"]);
+    }
+
+    #[test]
+    fn autopatch_runs_python_directly_with_launcher_ownership() {
+        let parts = command_parts(
+            Service::Autopatch,
+            "/usr/bin/python3",
+            Path::new("/tmp/tools"),
+        );
+        assert_eq!(parts.program, "/usr/bin/python3");
+        assert_eq!(
+            parts.args,
+            vec![
+                "/tmp/tools/autopatch.py",
+                "--launcher-pid",
+                &std::process::id().to_string(),
+            ]
+        );
+    }
+
+    #[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"));
+    }
+}

src/main.rs

@@ -1,7 +1,14 @@
+mod account_sync;
 mod app;
+mod arm;
 mod config;
+mod fifa17_capability;
+mod game_launch;
+mod health;
+mod local_services;
 mod logs;
-mod process;
+mod netcheck;
+mod preflight;
 mod setup;
 
 fn main() -> eframe::Result<()> {

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 +1,398 @@
+//! 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);
+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.
+pub fn run(cfg: &LauncherConfig) -> Vec<Check> {
+    vec![
+        ptrace_scope(cfg),
+        ea_redirect(cfg),
+        hostname_mapping(cfg),
+        backend_reachable(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.
+fn ptrace_scope(cfg: &LauncherConfig) -> Check {
+    const NAME: &str = "ptrace_scope (autopatch)";
+    // `fifa17_tools_dir` carries a conventional default, so a non-empty value
+    // does not mean the tools are installed. Key off the directory actually
+    // existing: that is what decides whether autopatch will run at all, and it
+    // keeps this from failing on a machine that never uses local services.
+    let tools = cfg.fifa17_tools_dir.trim();
+    if tools.is_empty() || !std::path::Path::new(tools).is_dir() {
+        return Check::skip(NAME, "no local services installed");
+    }
+    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.
+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.
+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.
+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?
+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(", ")))
+    }
+}
+
+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(test)]
+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 four
+        // green ticks. "Not checked" is not "checked and fine".
+        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.fifa17_tools_dir = "/nonexistent/openfut-tools".into();
+        let checks = run(&c);
+        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 ptrace_is_skipped_when_the_tools_dir_does_not_exist() {
+        // Regression: the gate used to be "is the field non-empty", and the
+        // field has a default — so this check ran (and failed) on machines that
+        // never use autopatch at all.
+        let mut c = cfg();
+        c.fifa17_tools_dir = "/nonexistent/openfut-tools".into();
+        assert_eq!(ptrace_scope(&c).state, State::Skipped);
+    }
+
+    #[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.
+    #[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()];
+        c.fifa17_tools_dir = "/nonexistent/openfut-tools".into();
+        let checks = run(&c);
+        assert_eq!(failures(&checks), 0, "must not be reported as fatal");
+        assert_eq!(warnings(&checks), 1);
+    }
+
+    #[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 ptrace_check_is_skipped_when_local_services_are_not_configured() {
+        let mut c = cfg();
+        c.fifa17_tools_dir.clear();
+        assert_eq!(ptrace_scope(&c).state, State::Skipped);
+    }
+
+    #[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);
+    }
+}

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};
+use std::{
-
+    path::{Path, PathBuf},
-// ── Port 443 capability ───────────────────────────────────────────────────────
+    process::Command,
-
+};
-/// 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)
-}
 
 // ── Cert installation ─────────────────────────────────────────────────────────
 
@@ -67,17 +49,13 @@ fn try_wine_certutil(cert_src: &Path) -> anyhow::Result<()> {
     }
 }
 
-fn run_elevated(script: &str) -> anyhow::Result<()> {
+pub(crate) fn run_elevated(script: &str) -> anyhow::Result<()> {
-    let status = Command::new("pkexec")
+    let status = Command::new("pkexec").args(["sh", "-c", script]).status();
-        .args(["sh", "-c", script])
-        .status();
 
     match status {
         Ok(s) if s.success() => Ok(()),
         _ => {
-            let s = Command::new("sudo")
+            let s = Command::new("sudo").args(["sh", "-c", script]).status()?;
-                .args(["sh", "-c", script])
-                .status()?;
             if s.success() {
                 Ok(())
             } else {
@@ -90,10 +68,13 @@ 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.
+/// 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 — 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<()> {
+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\
@@ -104,17 +85,18 @@ 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("openfut.cfg"), cfg_contents)?;
     Ok(())
 }
 
-/// Update only openfut.cfg without redeploying the DLL.
+/// Update only openfut.cfg without redeploying the DLL. `cfg_contents` is the
-pub fn update_hook_config(game_dir: &Path, redirect_ip: &str) -> anyhow::Result<()> {
+/// full structured `openfut.cfg` body.
+pub fn update_hook_config(game_dir: &Path, cfg_contents: &str) -> anyhow::Result<()> {
     let cfg = game_dir.join("openfut.cfg");
     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(())
 }
 
@@ -134,5 +116,65 @@ pub fn hook_dll_deployed(game_dir: &Path) -> bool {
 
 /// 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 =
+pub const STEAM_LAUNCH_OPTIONS: &str = "WINEDLLOVERRIDES=\"version=n,b\" %command%";
-    "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<std::sync::Mutex<crate::logs::LogBuffer>>,
+) -> 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 the Config tab).");
+    }
+
+    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()
+        .unwrap()
+        .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().unwrap().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().unwrap().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.
+    std::thread::spawn(move || {
+        let _ = child.wait();
+        log_buf
+            .lock()
+            .unwrap()
+            .push("[launcher] game process exited.".to_string());
+    });
+
+    Ok(())
+}