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pluginapi: Trampoline hooks %rip patching improvements (#4256)

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Co-authored-by: Jan Beich <jbeich@FreeBSD.org>
This commit is contained in:
Vaxry
2023-12-27 11:43:04 +01:00
committed by GitHub
parent 191fa587f4
commit 7474c81958
2 changed files with 114 additions and 60 deletions
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34
src/plugins/HookSystem.hpp
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@@ -22,21 +22,31 @@ class CFunctionHook {
void* m_pOriginal = nullptr;
private:
void* m_pSource = nullptr;
void* m_pFunctionAddr = nullptr;
void* m_pTrampolineAddr = nullptr;
void* m_pDestination = nullptr;
size_t m_iHookLen = 0;
size_t m_iTrampoLen = 0;
HANDLE m_pOwner = nullptr;
bool m_bActive = false;
void* m_pSource = nullptr;
void* m_pFunctionAddr = nullptr;
void* m_pTrampolineAddr = nullptr;
void* m_pDestination = nullptr;
size_t m_iHookLen = 0;
size_t m_iTrampoLen = 0;
HANDLE m_pOwner = nullptr;
bool m_bActive = false;
std::vector<std::pair<size_t, std::string>> m_vTrampolineRIPUses;
void* m_pOriginalBytes = nullptr;
void* m_pOriginalBytes = nullptr;
struct SInstructionProbe {
size_t len = 0;
std::string assembly = "";
std::vector<size_t> insSizes;
};
size_t probeMinimumJumpSize(void* start, size_t min);
size_t getInstructionLenAt(void* start);
struct SAssembly {
std::vector<char> bytes;
};
SInstructionProbe probeMinimumJumpSize(void* start, size_t min);
SInstructionProbe getInstructionLenAt(void* start);
SAssembly fixInstructionProbeRIPCalls(const SInstructionProbe& probe);
friend class CHookSystem;
};