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https://github.com/0O0o0oOoO00/Alas.git
synced 2026-05-21 09:59:28 +08:00
53 lines
1.4 KiB
C++
53 lines
1.4 KiB
C++
#include "dobby/dobby_internal.h"
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#include "Interceptor.h"
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#include "InterceptRouting/Routing/FunctionInlineHook/FunctionInlineHookRouting.h"
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PUBLIC int DobbyHook(void *address, dobby_dummy_func_t replace_func, dobby_dummy_func_t *origin_func) {
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if (!address) {
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ERROR_LOG("function address is 0x0");
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return -1;
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}
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#if defined(__APPLE__) && defined(__arm64__)
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address = pac_strip(address);
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replace_func = pac_strip(replace_func);
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#endif
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#if defined(ANDROID)
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void *page_align_address = (void *)ALIGN_FLOOR(address, OSMemory::PageSize());
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if (!OSMemory::SetPermission(page_align_address, OSMemory::PageSize(), kReadExecute)) {
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return -1;
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}
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#endif
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DEBUG_LOG("----- [DobbyHook:%p] -----", address);
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// check if already register
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auto entry = Interceptor::SharedInstance()->find((addr_t)address);
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if (entry) {
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ERROR_LOG("%p already been hooked.", address);
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return -1;
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}
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entry = new InterceptEntry(kFunctionInlineHook, (addr_t)address);
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auto *routing = new FunctionInlineHookRouting(entry, replace_func);
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routing->Prepare();
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routing->DispatchRouting();
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// set origin func entry with as relocated instructions
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if (origin_func) {
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*origin_func = (dobby_dummy_func_t)entry->relocated_addr;
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#if defined(__APPLE__) && defined(__arm64__)
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*origin_func = pac_sign(*origin_func);
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#endif
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}
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routing->Commit();
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Interceptor::SharedInstance()->add(entry);
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return 0;
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}
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