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fix crash for 10182
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@hzqst
hzqst committed Oct 8, 2024
1 parent 2e09f23 commit fa7a880
Showing 1 changed file with 163 additions and 155 deletions.
318 changes: 163 additions & 155 deletions fallguys/meta_api.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -295,232 +295,240 @@ C_DLLEXPORT int Meta_Attach(PLUG_LOADTIME /* now */,

if (!g_pfn_build_number)
{
FILL_FROM_SIGNATURE_TY(engine, build_number, i686);

LOG_MESSAGE(PLID, "build_number found at %p!", g_pfn_build_number);
if (!strcmp(gpMetaUtilFuncs->pfnGetEngineType(), "i686"))
{
FILL_FROM_SIGNATURED_TY_CALLER_FROM_START(engine, build_number, i686, 0);

LOG_MESSAGE(PLID, "Current engine build_number = %d!", g_pfn_build_number());
LOG_MESSAGE(PLID, "build_number found at %p!", g_pfn_build_number);

FILL_FROM_SIGNATURED_TY_CALLER_FROM_END(engine, SV_Physics, i686, -1);
LOG_MESSAGE(PLID, "SV_Physics found at %p!", g_pfn_SV_Physics);
LOG_MESSAGE(PLID, "Current engine build_number = %d!", g_pfn_build_number());

FILL_FROM_SIGNATURED_TY_CALLER_FROM_START(engine, SV_PushEntity, i686, 0);
LOG_MESSAGE(PLID, "SV_PushEntity found at %p!", g_pfn_SV_PushEntity);
FILL_FROM_SIGNATURED_TY_CALLER_FROM_END(engine, SV_Physics, i686, -1);
LOG_MESSAGE(PLID, "SV_Physics found at %p!", g_pfn_SV_Physics);

FILL_FROM_SIGNATURED_TY_CALLER_FROM_END(engine, SV_PushMove, i686, -1);
LOG_MESSAGE(PLID, "SV_PushMove found at %p!", g_pfn_SV_PushMove);
FILL_FROM_SIGNATURED_TY_CALLER_FROM_START(engine, SV_PushEntity, i686, 0);
LOG_MESSAGE(PLID, "SV_PushEntity found at %p!", g_pfn_SV_PushEntity);

FILL_FROM_SIGNATURED_TY_CALLER_FROM_END(engine, SV_PushRotate, i686, -9);
LOG_MESSAGE(PLID, "SV_PushRotate found at %p!", g_pfn_SV_PushRotate);
FILL_FROM_SIGNATURED_TY_CALLER_FROM_END(engine, SV_PushMove, i686, -1);
LOG_MESSAGE(PLID, "SV_PushMove found at %p!", g_pfn_SV_PushMove);

FILL_FROM_SIGNATURED_TY_CALLER_FROM_START(engine, SV_WriteMovevarsToClient, i686, 3);
LOG_MESSAGE(PLID, "SV_WriteMovevarsToClient found at %p!", g_pfn_SV_WriteMovevarsToClient);
FILL_FROM_SIGNATURED_TY_CALLER_FROM_END(engine, SV_PushRotate, i686, -9);
LOG_MESSAGE(PLID, "SV_PushRotate found at %p!", g_pfn_SV_PushRotate);

if (g_pfn_build_number() >= 10152)
{
FILL_FROM_SIGNATURED_TY_CALLER_FROM_END(engine, SV_SingleClipMoveToEntity_10152, i686, -1);
LOG_MESSAGE(PLID, "SV_SingleClipMoveToEntity_10152 found at %p!", g_pfn_SV_SingleClipMoveToEntity_10152);
}
else
{
FILL_FROM_SIGNATURED_TY_CALLER_FROM_END(engine, SV_SingleClipMoveToEntity, i686, -1);
LOG_MESSAGE(PLID, "SV_SingleClipMoveToEntity found at %p!", g_pfn_SV_SingleClipMoveToEntity);
}

auto gotplt_prolog = (char*)LOCATE_FROM_SIGNATURE(engine, gotplt_prolog_Signature);
if (!gotplt_prolog)
{
LOG_ERROR(PLID, "gotplt_prolog not found in engine dll!");
return FALSE;
}
FILL_FROM_SIGNATURED_TY_CALLER_FROM_START(engine, SV_WriteMovevarsToClient, i686, 3);
LOG_MESSAGE(PLID, "SV_WriteMovevarsToClient found at %p!", g_pfn_SV_WriteMovevarsToClient);

//__x86_get_pc_thunk_
auto pic_chunk_call = gotplt_prolog + 8;
auto add_addr = pic_chunk_call + 5;
auto got_plt = add_addr + *(int*)(add_addr + 2);
LOG_MESSAGE(PLID, "got_plt found at %p!", got_plt);
if (g_pfn_build_number() >= 10152)
{
FILL_FROM_SIGNATURED_TY_CALLER_FROM_END(engine, SV_SingleClipMoveToEntity_10152, i686, -1);
LOG_MESSAGE(PLID, "SV_SingleClipMoveToEntity_10152 found at %p!", g_pfn_SV_SingleClipMoveToEntity_10152);
}
else
{
FILL_FROM_SIGNATURED_TY_CALLER_FROM_END(engine, SV_SingleClipMoveToEntity, i686, -1);
LOG_MESSAGE(PLID, "SV_SingleClipMoveToEntity found at %p!", g_pfn_SV_SingleClipMoveToEntity);
}

if (1)
{
auto sv_models_addr = (char*)LOCATE_FROM_SIGNATURE(engine, sv_models_Signature);
if (!sv_models_addr)
auto gotplt_prolog = (char*)LOCATE_FROM_SIGNATURE(engine, gotplt_prolog_Signature);
if (!gotplt_prolog)
{
LOG_ERROR(PLID, "sv_models not found in engine dll!");
LOG_ERROR(PLID, "gotplt_prolog not found in engine dll!");
return FALSE;
}

sv_models = (decltype(sv_models))((char*)got_plt + *(int*)(sv_models_addr + 3));
LOG_MESSAGE(PLID, "sv_models found at %p!", sv_models);
}
//__x86_get_pc_thunk_
auto pic_chunk_call = gotplt_prolog + 8;
auto add_addr = pic_chunk_call + 5;
auto got_plt = add_addr + *(int*)(add_addr + 2);
LOG_MESSAGE(PLID, "got_plt found at %p!", got_plt);

if (1)
{
char pattern[] = host_frametime_Signature;
if (1)
{
auto sv_models_addr = (char*)LOCATE_FROM_SIGNATURE(engine, sv_models_Signature);
if (!sv_models_addr)
{
LOG_ERROR(PLID, "sv_models not found in engine dll!");
return FALSE;
}

auto searchBegin = (char *)engineBase;
auto searchEnd = (char *)engineBase + gpMetaUtilFuncs->pfnGetImageSize(engineBase);
while (1)
sv_models = (decltype(sv_models))((char*)got_plt + *(int*)(sv_models_addr + 3));
LOG_MESSAGE(PLID, "sv_models found at %p!", sv_models);
}

if (1)
{
auto pFound = LOCATE_FROM_SIGNATURE_FROM_FUNCTION(searchBegin, searchEnd - searchBegin, pattern);
if (pFound)
char pattern[] = host_frametime_Signature;

auto searchBegin = (char*)engineBase;
auto searchEnd = (char*)engineBase + gpMetaUtilFuncs->pfnGetImageSize(engineBase);
while (1)
{
auto pFoundNextInstruction = (char *)pFound + sizeof(pattern) - 1;
auto pFound = LOCATE_FROM_SIGNATURE_FROM_FUNCTION(searchBegin, searchEnd - searchBegin, pattern);
if (pFound)
{
auto pFoundNextInstruction = (char*)pFound + sizeof(pattern) - 1;

CDisasmFindGotPltTargetContext ctx = { 0 };

CDisasmFindGotPltTargetContext ctx = { 0 };
ctx.gotplt = got_plt;

ctx.gotplt = got_plt;
gpMetaUtilFuncs->pfnDisasmSingleInstruction(pFoundNextInstruction, DisasmSingleCallback_FindGotPltTarget, &ctx);

gpMetaUtilFuncs->pfnDisasmSingleInstruction(pFoundNextInstruction, DisasmSingleCallback_FindGotPltTarget, &ctx);
if (ctx.result)
{
host_frametime = (decltype(host_frametime))ctx.result;
break;
}

if (ctx.result)
searchBegin = (char*)pFound + sizeof(pattern) - 1;
}
else
{
host_frametime = (decltype(host_frametime))ctx.result;
break;
}

searchBegin = (char *)pFound + sizeof(pattern) - 1;
}
else

if (!host_frametime)
{
break;
LOG_ERROR(PLID, "host_frametime not found in engine dll!");
return FALSE;
}
}

if (!host_frametime)
if (1)
{
LOG_ERROR(PLID, "host_frametime not found in engine dll!");
return FALSE;
}
}
CDisasmFindGotPltTargetContext ctx = { 0 };

if (1)
{
CDisasmFindGotPltTargetContext ctx = { 0 };
ctx.gotplt = got_plt;

ctx.gotplt = got_plt;
gpMetaUtilFuncs->pfnDisasmRanges((void*)g_pfn_SV_WriteMovevarsToClient, 0x150, DisasmCallback_FindGotPltTarget, 0, &ctx);

gpMetaUtilFuncs->pfnDisasmRanges((void*)g_pfn_SV_WriteMovevarsToClient, 0x150, DisasmCallback_FindGotPltTarget, 0, &ctx);
if (ctx.result)
{
pmovevars = (decltype(pmovevars))ctx.result;
}

if (ctx.result)
{
pmovevars = (decltype(pmovevars))ctx.result;
if (!pmovevars)
{
LOG_ERROR(PLID, "movevars not found in engine dll!");
return FALSE;
}
LOG_MESSAGE(PLID, "movevars found at %p!", pmovevars);
}

if (!pmovevars)
if (1)
{
LOG_ERROR(PLID, "movevars not found in engine dll!");
return FALSE;
}
LOG_MESSAGE(PLID, "movevars found at %p!", pmovevars);
}
char pattern[] = sv_areanodes_Signature;

if (1)
{
char pattern[] = sv_areanodes_Signature;

auto searchBegin = (char *)engineBase;
auto searchEnd = (char *)engineBase + gpMetaUtilFuncs->pfnGetImageSize(engineBase);
while (1)
{
auto pFound = LOCATE_FROM_SIGNATURE_FROM_FUNCTION(searchBegin, searchEnd - searchBegin, pattern);
if (pFound)
auto searchBegin = (char*)engineBase;
auto searchEnd = (char*)engineBase + gpMetaUtilFuncs->pfnGetImageSize(engineBase);
while (1)
{
auto pFoundNextInstruction = (char*)pFound + sizeof(pattern) - 1;
auto pFound = LOCATE_FROM_SIGNATURE_FROM_FUNCTION(searchBegin, searchEnd - searchBegin, pattern);
if (pFound)
{
auto pFoundNextInstruction = (char*)pFound + sizeof(pattern) - 1;

CDisasmFindGotPltTargetContext ctx = { 0 };

CDisasmFindGotPltTargetContext ctx = { 0 };
ctx.gotplt = got_plt;

ctx.gotplt = got_plt;
gpMetaUtilFuncs->pfnDisasmSingleInstruction(pFoundNextInstruction, DisasmSingleCallback_FindGotPltTarget, &ctx);

gpMetaUtilFuncs->pfnDisasmSingleInstruction(pFoundNextInstruction, DisasmSingleCallback_FindGotPltTarget, &ctx);
if (ctx.result)
{
sv_areanodes = (decltype(sv_areanodes))ctx.result;
break;
}

if (ctx.result)
searchBegin = (char*)pFound + sizeof(pattern) - 1;
}
else
{
sv_areanodes = (decltype(sv_areanodes))ctx.result;
break;
}

searchBegin = (char *)pFound + sizeof(pattern) - 1;
}
else

if (!sv_areanodes)
{
break;
LOG_ERROR(PLID, "sv_areanodes not found in engine dll!");
return FALSE;
}
LOG_MESSAGE(PLID, "sv_areanodes found at %p!", sv_areanodes);
}

if (!sv_areanodes)
if (1)
{
LOG_ERROR(PLID, "sv_areanodes not found in engine dll!");
return FALSE;
}
LOG_MESSAGE(PLID, "sv_areanodes found at %p!", sv_areanodes);
}
char pattern[] = PF_SetGroupMask_Signature;

if (1)
{
char pattern[] = PF_SetGroupMask_Signature;

auto searchBegin = (char *)engineBase;
auto searchEnd = (char *)engineBase + gpMetaUtilFuncs->pfnGetImageSize(engineBase);
while (1)
{
auto pFound = LOCATE_FROM_SIGNATURE_FROM_FUNCTION(searchBegin, searchEnd - searchBegin, pattern);
if (pFound)
auto searchBegin = (char*)engineBase;
auto searchEnd = (char*)engineBase + gpMetaUtilFuncs->pfnGetImageSize(engineBase);
while (1)
{
auto g_groupmask_instruction = (char *)pFound + 4;
auto g_groupop_instruction = (char*)pFound + 14;

if (1)
auto pFound = LOCATE_FROM_SIGNATURE_FROM_FUNCTION(searchBegin, searchEnd - searchBegin, pattern);
if (pFound)
{
CDisasmFindGotPltTargetContext ctx = { 0 };
auto g_groupmask_instruction = (char*)pFound + 4;
auto g_groupop_instruction = (char*)pFound + 14;

ctx.gotplt = got_plt;
if (1)
{
CDisasmFindGotPltTargetContext ctx = { 0 };

gpMetaUtilFuncs->pfnDisasmSingleInstruction(g_groupmask_instruction, DisasmSingleCallback_FindGotPltTarget, &ctx);
ctx.gotplt = got_plt;

if (ctx.result)
{
pg_groupmask = (decltype(pg_groupmask))ctx.result;
gpMetaUtilFuncs->pfnDisasmSingleInstruction(g_groupmask_instruction, DisasmSingleCallback_FindGotPltTarget, &ctx);

if (ctx.result)
{
pg_groupmask = (decltype(pg_groupmask))ctx.result;
}
}
}

if (1)
{
CDisasmFindGotPltTargetContext ctx = { 0 };
if (1)
{
CDisasmFindGotPltTargetContext ctx = { 0 };

ctx.gotplt = got_plt;
ctx.gotplt = got_plt;

gpMetaUtilFuncs->pfnDisasmSingleInstruction(g_groupop_instruction, DisasmSingleCallback_FindGotPltTarget, &ctx);
gpMetaUtilFuncs->pfnDisasmSingleInstruction(g_groupop_instruction, DisasmSingleCallback_FindGotPltTarget, &ctx);

if (ctx.result)
{
pg_groupop = (decltype(pg_groupop))ctx.result;
if (ctx.result)
{
pg_groupop = (decltype(pg_groupop))ctx.result;
}
}
}

if (pg_groupop)
break;
if (pg_groupop)
break;

searchBegin = (char *)pFound + sizeof(pattern) - 1;
searchBegin = (char*)pFound + sizeof(pattern) - 1;
}
else
{
break;
}
}
else

if (!pg_groupmask)
{
break;
LOG_ERROR(PLID, "g_groupmask not found in engine dll!");
return FALSE;
}
}
LOG_MESSAGE(PLID, "g_groupmask found at %p!", pg_groupmask);

if (!pg_groupmask)
{
LOG_ERROR(PLID, "g_groupmask not found in engine dll!");
return FALSE;
}
LOG_MESSAGE(PLID, "g_groupmask found at %p!", pg_groupmask);

if (!pg_groupop)
{
LOG_ERROR(PLID, "g_groupop not found in engine dll!");
return FALSE;
if (!pg_groupop)
{
LOG_ERROR(PLID, "g_groupop not found in engine dll!");
return FALSE;
}
LOG_MESSAGE(PLID, "g_groupop found at %p!", pg_groupop);
}
LOG_MESSAGE(PLID, "g_groupop found at %p!", pg_groupop);
}
else
{
LOG_ERROR(PLID, "engine_amd.so is not supported yet!");
return FALSE;
}
}
else
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