Greg
68 lines
1.6 KiB
C++
68 lines
1.6 KiB
C++
#include "Common.h"
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#include "Patcher.h"
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void Patcher::Install_Patch(uint64_t Address, const void* Data, size_t Length)
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{
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//Backup Params.
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this->Address = Address;
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this->Length = Length;
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//Set protection to all
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sceKernelMprotect((void*)Address, Length, VM_PROT_ALL);
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//Backup data.
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int res = sceKernelMmap(0, Length, VM_PROT_ALL, 0x1000 | 0x2, -1, 0, &OriginalData);
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if (res < 0)
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{
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klog("[Patcher] sceKernelMmap Failed: 0x%llX\n", res);
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return;
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}
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memcpy(OriginalData, Data, Length);
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//Write Patch.
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memcpy((void*)Address, Data, Length);
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klog("[Patcher] Install_Patch: Patch (%llX) Written Successfully!\n", Address);
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}
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void Patcher::Install_Method_Patch(MonoImage* Assembly_Image, const char* Namespace, const char* Klass, const char* Method, int Param_Count, size_t Offset, const void* Data, size_t Length)
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{
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uint64_t Method_Address = Mono::Get_Address_of_Method(Assembly_Image, Namespace, Klass, Method, Param_Count);
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if (Method_Address == NULL)
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{
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klog("[Patcher] Install_Method_Patch: Method address returned null!\n");
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return;
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}
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Install_Patch(Method_Address + Offset, Data, Length);
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}
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void Patcher::Restore_Patch()
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{
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if (this->OriginalData)
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{
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//Set protection to all
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sceKernelMprotect((void*)this->Address, this->Length, VM_PROT_ALL);
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//Write original Data back.
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memcpy((void*)this->Address, this->OriginalData, this->Length);
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klog("[Patcher] Restore_Patch: Patch (%llX) Restored Successfully!\n", this->Address);
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}
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else
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klog("[Patcher] Patch not installed.\n");
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}
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Patcher::Patcher()
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{
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}
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Patcher::~Patcher()
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{
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Restore_Patch();
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//Clean up
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sceKernelMunmap(this->OriginalData, this->Length);
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} |