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tweak(gta-five-net): network synchronised scene id hacks
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code/components/gta-net-five/src/NetworkSynchronisedSceneHacks.cpp
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,147 @@ | ||
| #include "StdInc.h" | ||
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| #include "CrossBuildRuntime.h" | ||
| #include "Hooking.h" | ||
| #include "NetGameEvent.h" | ||
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| #include <jitasm.h> | ||
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| template<int Build> | ||
| static int GetServerId(const rlGamerInfo<Build>& platformData) | ||
| { | ||
| return (platformData.peerAddress.localAddr().ip.addr & 0xFFFF) ^ 0xFEED; | ||
| } | ||
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| static int DoGetServerId(CNetGamePlayer* player) | ||
| { | ||
| if (xbr::IsGameBuildOrGreater<2824>()) | ||
| { | ||
| return GetServerId(*player->GetGamerInfo<2824>()); | ||
| } | ||
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| if (xbr::IsGameBuildOrGreater<2372>()) | ||
| { | ||
| return GetServerId(*player->GetGamerInfo<2372>()); | ||
| } | ||
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| if (xbr::IsGameBuildOrGreater<2060>()) | ||
| { | ||
| return GetServerId(*player->GetGamerInfo<2060>()); | ||
| } | ||
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| return GetServerId(*player->GetGamerInfo<1604>()); | ||
| } | ||
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| static constexpr char pattern[] = "\x41\xB8\x0D\x00\x00\x00"; | ||
| static auto FindPattern(const uintptr_t startAddress) | ||
| { | ||
| auto address = reinterpret_cast<const uint8_t*>(startAddress); | ||
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| while (true) | ||
| { | ||
| assert(*address != 0xE9); | ||
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| if (memcmp(address, pattern, sizeof(pattern) - 1) == 0) | ||
| { | ||
| return reinterpret_cast<uintptr_t>(address); | ||
| } | ||
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| ++address; | ||
| } | ||
| } | ||
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| static uint32_t GetSceneIdOffset(CNetGamePlayer* player) | ||
| { | ||
| return (DoGetServerId(player) - 1) * 64; | ||
| } | ||
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| static HookFunction hookFunction([]() | ||
| { | ||
| // StartScene - Serializer | ||
| { | ||
| //Write | ||
| hook::put<uint32_t>(hook::get_pattern("41 B8 ? ? ? ? 48 8B C8 C6 44 24 ? ? E8 ? ? ? ? 48 8B 7C 24", 2), 32); | ||
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| //Read | ||
| hook::put<uint32_t>(hook::get_pattern("41 B8 ? ? ? ? 48 8B C8 48 8B D6", 2), 32); | ||
| } | ||
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| // Request-/StopScene - Serializer | ||
| { | ||
| const auto cCRequestNetworkSyncedSceneEvent_vtable = hook::get_address<uintptr_t*>(hook::get_pattern<unsigned char>("48 8D 05 ? ? ? ? 89 5E ? 48 8B 5C 24 ? 48 89 06 8A 47", 3)); | ||
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| // Write | ||
| uintptr_t target = cCRequestNetworkSyncedSceneEvent_vtable[5]; | ||
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| hook::put<uint32_t>(FindPattern(target) + 2, 32); | ||
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| // Read | ||
| target = cCRequestNetworkSyncedSceneEvent_vtable[6]; | ||
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| hook::put<uint32_t>(FindPattern(target) + 2, 32); | ||
| } | ||
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| // UpdateScene - Serializer | ||
| { | ||
| const auto cCUpdateNetworkSyncedSceneEvent_vtable = hook::get_address<uintptr_t*>(hook::get_pattern("48 8D 05 ? ? ? ? F3 0F 11 77 ? 0F 28 74 24", 3)); | ||
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| // Write | ||
| uintptr_t target = cCUpdateNetworkSyncedSceneEvent_vtable[5]; | ||
| target = target + 5 + *reinterpret_cast<int32_t*>(target + 1); | ||
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| hook::put<uint32_t>(FindPattern(target) + 2, 32); | ||
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| // Read | ||
| target = cCUpdateNetworkSyncedSceneEvent_vtable[6]; | ||
| target = target + 5 + *reinterpret_cast<int32_t*>(target + 1); | ||
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| hook::put<uint32_t>(FindPattern(target) + 2, 32); | ||
| } | ||
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| // CClonedSynchronizedSceneInfo - Serializer | ||
| { | ||
| const auto cClonedSynchronizedSceneInfo_vtable = hook::get_address<uintptr_t*>(hook::get_pattern("48 8D 05 ? ? ? ? E9 ? ? ? ? 48 8B 0D ? ? ? ? 45 33 C9 4D 8B C6 BA ? ? ? ? E8 ? ? ? ? 48 85 C0 0F 84 ? ? ? ? 48 8B C8 E8 ? ? ? ? E9 ? ? ? ? 48 8B 0D ? ? ? ? 45 33 C9 4D 8B C6 BA", 3)); | ||
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| int vtableIdx = 24; | ||
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| if (xbr::IsGameBuildOrGreater<2802>()) | ||
| { | ||
| vtableIdx = 30; | ||
| } | ||
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| hook::put<uint8_t>(cClonedSynchronizedSceneInfo_vtable[vtableIdx] + 0x1F + 3, 32); | ||
| } | ||
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| // CNetworkSynchronizedScenes - Scene Allocator | ||
| { | ||
| static struct : jitasm::Frontend | ||
| { | ||
| intptr_t retAddress; | ||
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| void Init(const intptr_t ret) | ||
| { | ||
| this->retAddress = ret; | ||
| } | ||
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| void InternalMain() override | ||
| { | ||
| mov(rcx, rax); | ||
| mov(rax, reinterpret_cast<uintptr_t>(&GetSceneIdOffset)); | ||
| call(rax); | ||
| mov(ebp, eax); | ||
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| mov(rax, retAddress); | ||
| jmp(rax); | ||
| } | ||
| } patchStub; | ||
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| auto location = hook::get_pattern("0F B6 68 ? C1 E5"); | ||
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| const auto ret = reinterpret_cast<intptr_t>(location) + 7; | ||
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| patchStub.Init(ret); | ||
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| hook::nop(location, 7); | ||
| hook::jump_rcx(location, patchStub.GetCode()); | ||
| } | ||
| }); |