Add FIFA17 match transition tracers

2026-08-25 21:37:59 +00:00
parent e3ed8c298e
commit 5eed124b85
2 changed files with 427 additions and 0 deletions
@@ -0,0 +1,194 @@
+#!/usr/bin/env python3
+"""Trace FIFA17 ACTION_ADVANCE dispatch after MATCH_CREATED delivery.
+
+Stage one (`match_transition_trace.py`) proves the HTTP response, deserializer,
+and FUT_CREATE_MATCH_DP delivery. This stage uses that provider callback to
+capture the screen key, then records every nested global UI dispatch for that
+same screen until the positive-control FUT_GET_MATCH_KITS_DP arrives. It also
+captures the low-level create event and final native-to-UI provider bridge.
+
+The generated GDB program uses hardware-assisted execution breakpoints only.
+It never writes client memory and never drives game input.
+
+    match_advance_trace.py [pid] [--output PATH]
+    match_advance_trace.py --print-script [pid]
+    match_advance_trace.py --selftest
+"""
+from __future__ import annotations
+
+import argparse
+import hashlib
+import os
+from pathlib import Path
+import shutil
+import sys
+
+sys.path.insert(0, str(Path(__file__).resolve().parent))
+import match_transition_trace as transition
+
+FIFA_MODULE = "FIFA17.exe"
+PINNED_FIFA_SHA256 = "29c31cef12b0c3c2a7305220617c7b4fa139ab76b8c857851bdbe88987962899"
+GLOBAL_UI_DISPATCH_RVA = 0x80D1070
+CREATE_MATCH_CONTROLLER_RVA = 0xBF950
+PROVIDER_BRIDGE_CALL_RVA = 0x1A4D41
+
+
+def module_mapping(pid: int, module: str) -> tuple[int, str]:
+    with open(f"/proc/{pid}/maps", encoding="utf-8") as handle:
+        for line in handle:
+            fields = line.split(maxsplit=5)
+            path = fields[5].rstrip() if len(fields) == 6 else ""
+            if not path.endswith(module):
+                continue
+            return int(fields[0].split("-", 1)[0], 16), path
+    raise RuntimeError(f"{module} is not mapped in PID {pid}")
+
+
+def validate_file(path: str, expected: str, label: str) -> None:
+    digest = hashlib.sha256()
+    with open(path, "rb") as handle:
+        for chunk in iter(lambda: handle.read(1024 * 1024), b""):
+            digest.update(chunk)
+    actual = digest.hexdigest()
+    if actual != expected:
+        raise RuntimeError(f"unsupported {label}: sha256={actual}; expected={expected}")
+
+
+def trace_addresses(cards_base: int, fifa_base: int) -> dict[str, int]:
+    return {
+        "provider": cards_base + transition.PROVIDER_DISPATCH_RVA,
+        "global_dispatch": fifa_base + GLOBAL_UI_DISPATCH_RVA,
+        "controller": cards_base + CREATE_MATCH_CONTROLLER_RVA,
+        "bridge": cards_base + PROVIDER_BRIDGE_CALL_RVA,
+    }
+
+
+def build_gdb_script(pid: int, cards_base: int, fifa_base: int, output: str) -> str:
+    if any(character in output for character in "\n\r"):
+        raise ValueError("output path cannot contain a newline")
+    address = trace_addresses(cards_base, fifa_base)
+    return f"""set pagination off
+set confirm off
+set print thread-events off
+set breakpoint always-inserted on
+set logging file {output}
+set logging overwrite on
+set logging redirect off
+set logging enabled on
+handle SIGSEGV nostop noprint pass
+handle SIGILL nostop noprint pass
+handle SIGFPE nostop noprint pass
+handle SIGPIPE nostop noprint pass
+handle SIGALRM nostop noprint pass
+handle SIGUSR1 nostop noprint pass
+handle SIGUSR2 nostop noprint pass
+
+attach {pid}
+set $screen_key = 0
+set $target_seen = 0
+
+hbreak *0x{address['provider']:x}
+condition 1 $edx == 0x{transition.FUT_CREATE_MATCH_DP:x} || $edx == 0x{transition.FUT_GET_MATCH_KITS_DP:x}
+commands
+  silent
+  if $edx == 0x{transition.FUT_CREATE_MATCH_DP:x}
+    set $screen_key = $r8
+    set $target_seen = 1
+  end
+  python import time; print("ADVTRACE epoch_ns=%d mono_ns=%d PROVIDER" % (time.time_ns(), time.monotonic_ns()), end=" ")
+  printf "thread=%d provider=%#x screen_key=%p controller=%p caller=%p\\n", $_thread, $edx, $r8, $rcx, *(void**)$rsp
+  continue
+end
+
+hbreak *0x{address['global_dispatch']:x}
+condition 2 $target_seen != 0 && $r8 == $screen_key
+commands
+  silent
+  python import time; print("ADVTRACE epoch_ns=%d mono_ns=%d GLOBAL_DISPATCH" % (time.time_ns(), time.monotonic_ns()), end=" ")
+  printf "thread=%d id=%#x screen_key=%p registry=%p caller=%p\\n", $_thread, $rdx, $r8, $rcx, *(void**)$rsp
+  continue
+end
+
+hbreak *0x{address['controller']:x}
+condition 3 $edx == 0x7546
+commands
+  silent
+  python import time; print("ADVTRACE epoch_ns=%d mono_ns=%d CREATE_MATCH_CONTROLLER" % (time.time_ns(), time.monotonic_ns()), end=" ")
+  printf "thread=%d event=%#x controller=%p caller=%p\\n", $_thread, $edx, $rcx, *(void**)$rsp
+  continue
+end
+
+hbreak *0x{address['bridge']:x}
+condition 4 $edi == 0x{transition.FUT_CREATE_MATCH_DP:x} || $edi == 0x{transition.FUT_GET_MATCH_KITS_DP:x}
+commands
+  silent
+  python import time; print("ADVTRACE epoch_ns=%d mono_ns=%d PROVIDER_BRIDGE" % (time.time_ns(), time.monotonic_ns()), end=" ")
+  printf "thread=%d provider=%#x target=%p bridge=%p callback=%p\\n", $_thread, $edi, $rsi, $rbx, *(void**)(*(void**)$rbx+0x48)
+  continue
+end
+
+printf "ADVTRACE ARMED pid={pid} provider=0x{address['provider']:x} global=0x{address['global_dispatch']:x} controller=0x{address['controller']:x} bridge=0x{address['bridge']:x}\\n"
+continue
+"""
+
+
+def selftest() -> None:
+    address = trace_addresses(0x180000000, 0x140000000)
+    assert address == {
+        "provider": 0x1801A4CD0,
+        "global_dispatch": 0x1480D1070,
+        "controller": 0x1800BF950,
+        "bridge": 0x1801A4D41,
+    }
+    script = build_gdb_script(28804, 0x180000000, 0x140000000, "/tmp/advance.log")
+    assert script.count("hbreak *") == 4
+    assert f"$edx == 0x{transition.FUT_CREATE_MATCH_DP:x}" in script
+    assert f"$edx == 0x{transition.FUT_GET_MATCH_KITS_DP:x}" in script
+    assert "$r8 == $screen_key" in script
+    assert "CREATE_MATCH_CONTROLLER" in script
+    assert "PROVIDER_BRIDGE" in script
+    assert "set *(" not in script
+    print("match_advance_trace selftest: PASS")
+
+
+def main() -> int:
+    parser = argparse.ArgumentParser(description=__doc__)
+    parser.add_argument("pid", nargs="?", type=int)
+    parser.add_argument("--output")
+    parser.add_argument("--print-script", action="store_true")
+    parser.add_argument("--selftest", action="store_true")
+    args = parser.parse_args()
+    if args.selftest:
+        selftest()
+        return 0
+
+    pid = args.pid or transition.find_pid()
+    if not pid:
+        print("FIFA17.exe not found", file=sys.stderr)
+        return 2
+    try:
+        cards_base, cards_path = transition.cards_mapping(pid)
+        transition.validate_cards(cards_path)
+        fifa_base, fifa_path = module_mapping(pid, FIFA_MODULE)
+        validate_file(fifa_path, PINNED_FIFA_SHA256, FIFA_MODULE)
+        output = args.output or f"/tmp/fifa17-match-advance-{pid}.log"
+        script = build_gdb_script(pid, cards_base, fifa_base, output)
+    except (OSError, RuntimeError, ValueError) as error:
+        print(error, file=sys.stderr)
+        return 2
+
+    if args.print_script:
+        print(script, end="")
+        return 0
+    if not shutil.which("gdb"):
+        print("gdb not found", file=sys.stderr)
+        return 2
+    script_path = f"/tmp/fifa17-match-advance-{pid}.gdb"
+    with open(script_path, "w", encoding="utf-8") as handle:
+        handle.write(script)
+    os.execvp("gdb", ["gdb", "-q", "-nx", "-x", script_path])
+    return 127
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())
@@ -0,0 +1,233 @@
+#!/usr/bin/env python3
+"""Trace the FIFA17 create-match publish boundary with hardware breakpoints.
+
+The tracer covers the client-local path after POST /match:
+
+    response callback -> deserializer -> controller event 0x7546
+    -> FUT_CREATE_MATCH_DP 0x7563
+
+FUT_GET_MATCH_KITS_DP 0x7565 is captured as the positive control through the
+same native dispatcher. The generated GDB program uses only hardware-assisted
+execution breakpoints. It never writes client memory and never drives game
+input.
+
+    match_transition_trace.py [pid] [--output PATH]
+    match_transition_trace.py --print-script [pid]
+    match_transition_trace.py --selftest
+"""
+from __future__ import annotations
+
+import argparse
+import glob
+import hashlib
+import os
+import shutil
+import sys
+
+CARDS_MODULE = "CardsDLL_Win64_retail.dll"
+PINNED_CARDS_SHA256 = "4706a881ae1fc7b5769fd810b25a868d29d2b16a8e65a7513436327ef645573c"
+RESPONSE_CALLBACK_RVA = 0x114D90
+DESERIALIZE_SUCCESS_RVA = 0x118940
+CREATE_MATCH_CONTROLLER_RVA = 0xBF950
+PROVIDER_DISPATCH_RVA = 0x1A4CD0
+CREATE_MATCH_CONTROLLER_EVENT = 0x7546
+FUT_CREATE_MATCH_DP = 0x7563
+FUT_GET_MATCH_KITS_DP = 0x7565
+
+
+def find_pid() -> int | None:
+    found = []
+    for directory in glob.glob("/proc/[0-9]*"):
+        try:
+            with open(os.path.join(directory, "comm"), encoding="utf-8") as handle:
+                if handle.read().strip() != "FIFA17.exe":
+                    continue
+            pid = int(os.path.basename(directory))
+            with open(os.path.join(directory, "statm"), encoding="utf-8") as handle:
+                resident_pages = int(handle.read().split()[1])
+            found.append((resident_pages, pid))
+        except (OSError, ValueError, IndexError):
+            continue
+    return max(found)[1] if found else None
+
+
+def parse_cards_mapping(lines) -> tuple[int, str]:
+    for line in lines:
+        fields = line.split(maxsplit=5)
+        path = fields[5].rstrip() if len(fields) == 6 else ""
+        if not path.endswith(CARDS_MODULE):
+            continue
+        start = int(fields[0].split("-", 1)[0], 16)
+        return start, path
+    raise RuntimeError(f"{CARDS_MODULE} is not mapped")
+
+
+def cards_mapping(pid: int) -> tuple[int, str]:
+    with open(f"/proc/{pid}/maps", encoding="utf-8") as handle:
+        try:
+            return parse_cards_mapping(handle)
+        except RuntimeError as error:
+            raise RuntimeError(f"{error} in PID {pid}") from error
+
+
+def sha256_file(path: str) -> str:
+    digest = hashlib.sha256()
+    with open(path, "rb") as handle:
+        for chunk in iter(lambda: handle.read(1024 * 1024), b""):
+            digest.update(chunk)
+    return digest.hexdigest()
+
+
+def validate_cards(path: str) -> None:
+    actual = sha256_file(path)
+    if actual != PINNED_CARDS_SHA256:
+        raise RuntimeError(
+            f"unsupported {CARDS_MODULE}: sha256={actual}; expected={PINNED_CARDS_SHA256}"
+        )
+
+
+def trace_addresses(base: int) -> dict[str, int]:
+    return {
+        "response": base + RESPONSE_CALLBACK_RVA,
+        "deserialize": base + DESERIALIZE_SUCCESS_RVA,
+        "controller": base + CREATE_MATCH_CONTROLLER_RVA,
+        "provider": base + PROVIDER_DISPATCH_RVA,
+    }
+
+
+def build_gdb_script(pid: int, base: int, output: str) -> str:
+    if any(character in output for character in "\n\r"):
+        raise ValueError("output path cannot contain a newline")
+    address = trace_addresses(base)
+    return f"""set pagination off
+set confirm off
+set print thread-events off
+set breakpoint always-inserted on
+set logging file {output}
+set logging overwrite on
+set logging redirect off
+set logging enabled on
+handle SIGSEGV nostop noprint pass
+handle SIGILL nostop noprint pass
+handle SIGFPE nostop noprint pass
+handle SIGPIPE nostop noprint pass
+handle SIGALRM nostop noprint pass
+handle SIGUSR1 nostop noprint pass
+handle SIGUSR2 nostop noprint pass
+
+attach {pid}
+
+hbreak *0x{address['response']:x}
+commands
+  silent
+  python import time; print("HWTRACE epoch_ns=%d mono_ns=%d T3_RESPONSE_CALLBACK" % (time.time_ns(), time.monotonic_ns()), end=" ")
+  if $rdx != 0
+    printf "thread=%d manager=%p status_obj=%p status=%u wire_payload=%p caller=%p\\n", $_thread, $rcx, $rdx, *(unsigned int*)($rdx+0x1c), *(void**)($rdx+0x28), *(void**)$rsp
+  else
+    printf "thread=%d manager=%p status_obj=0 caller=%p\\n", $_thread, $rcx, *(void**)$rsp
+  end
+  continue
+end
+
+hbreak *0x{address['deserialize']:x}
+commands
+  silent
+  python import time; print("HWTRACE epoch_ns=%d mono_ns=%d T4_DESERIALIZE_SUCCESS" % (time.time_ns(), time.monotonic_ns()), end=" ")
+  printf "thread=%d manager=%p payload=%p caller=%p\\n", $_thread, $rcx, $rdx, *(void**)$rsp
+  continue
+end
+
+hbreak *0x{address['controller']:x}
+condition 3 $edx == 0x{CREATE_MATCH_CONTROLLER_EVENT:x}
+commands
+  silent
+  python import time; print("HWTRACE epoch_ns=%d mono_ns=%d T5_CREATE_MATCH_CONTROLLER" % (time.time_ns(), time.monotonic_ns()), end=" ")
+  printf "thread=%d controller_subobject=%p event=%#x caller=%p\\n", $_thread, $rcx, $edx, *(void**)$rsp
+  continue
+end
+
+hbreak *0x{address['provider']:x}
+condition 4 $edx == 0x{FUT_CREATE_MATCH_DP:x} || $edx == 0x{FUT_GET_MATCH_KITS_DP:x}
+commands
+  silent
+  python import time; print("HWTRACE epoch_ns=%d mono_ns=%d T6_PROVIDER_DISPATCH" % (time.time_ns(), time.monotonic_ns()), end=" ")
+  printf "thread=%d controller=%p provider=%#x payload=%p callback=%p\\n", $_thread, $rcx, $edx, $r8, *(void**)$rsp
+  continue
+end
+
+printf "HWTRACE ARMED pid={pid} response=0x{address['response']:x} deserialize=0x{address['deserialize']:x} controller=0x{address['controller']:x} provider=0x{address['provider']:x}\\n"
+continue
+"""
+
+
+def selftest() -> None:
+    base = 0x180000000
+    address = trace_addresses(base)
+    assert address == {
+        "response": 0x180114D90,
+        "deserialize": 0x180118940,
+        "controller": 0x1800BF950,
+        "provider": 0x1801A4CD0,
+    }
+    mapping = parse_cards_mapping(
+        [
+            "6ffffc0f0000-6ffffc0f1000 r--p 00000000 00:37 2941670 "
+            "/mnt/games/FIFA 17/CardsDLL_Win64_retail.dll\n"
+        ]
+    )
+    assert mapping == (
+        0x6FFFFC0F0000,
+        "/mnt/games/FIFA 17/CardsDLL_Win64_retail.dll",
+    )
+    script = build_gdb_script(25718, base, "/tmp/match-transition.log")
+    assert script.count("hbreak *") == 4
+    assert f"$edx == 0x{CREATE_MATCH_CONTROLLER_EVENT:x}" in script
+    assert f"$edx == 0x{FUT_CREATE_MATCH_DP:x}" in script
+    assert f"$edx == 0x{FUT_GET_MATCH_KITS_DP:x}" in script
+    assert "T3_RESPONSE_CALLBACK" in script
+    assert "T4_DESERIALIZE_SUCCESS" in script
+    assert "T5_CREATE_MATCH_CONTROLLER" in script
+    assert "T6_PROVIDER_DISPATCH" in script
+    assert "set *(" not in script
+    print("match_transition_trace selftest: PASS")
+
+
+def main() -> int:
+    parser = argparse.ArgumentParser(description=__doc__)
+    parser.add_argument("pid", nargs="?", type=int)
+    parser.add_argument("--output")
+    parser.add_argument("--print-script", action="store_true")
+    parser.add_argument("--selftest", action="store_true")
+    args = parser.parse_args()
+    if args.selftest:
+        selftest()
+        return 0
+
+    pid = args.pid or find_pid()
+    if not pid:
+        print("FIFA17.exe not found", file=sys.stderr)
+        return 2
+    try:
+        base, cards_path = cards_mapping(pid)
+        validate_cards(cards_path)
+        output = args.output or f"/tmp/fifa17-match-transition-{pid}.log"
+        script = build_gdb_script(pid, base, output)
+    except (OSError, RuntimeError, ValueError) as error:
+        print(error, file=sys.stderr)
+        return 2
+
+    if args.print_script:
+        print(script, end="")
+        return 0
+    if not shutil.which("gdb"):
+        print("gdb not found", file=sys.stderr)
+        return 2
+    script_path = f"/tmp/fifa17-match-transition-{pid}.gdb"
+    with open(script_path, "w", encoding="utf-8") as handle:
+        handle.write(script)
+    os.execvp("gdb", ["gdb", "-q", "-nx", "-x", script_path])
+    return 127
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())