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hooksystem: use a random 700 directory for assembler

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This commit is contained in:
Vaxry 2024-04-28 18:28:19 +01:00
parent 82a6fba6ec
commit 28c8561924
1 changed files with 17 additions and 10 deletions
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27
src/plugins/HookSystem.cpp
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@ -1,6 +1,7 @@
#include "HookSystem.hpp"
#include "../debug/Log.hpp"
#include "../helpers/VarList.hpp"
#include "../managers/TokenManager.hpp"
#define register
#include <udis86.h>
@ -135,24 +136,30 @@ CFunctionHook::SAssembly CFunctionHook::fixInstructionProbeRIPCalls(const SInstr
currentAddress += len;
}
std::ofstream ofs("/tmp/hypr/.hookcode.asm", std::ios::trunc);
const auto RANDOMDIR = "/tmp/hypr/" + g_pTokenManager->getRandomUUID();
if (!std::filesystem::create_directory(RANDOMDIR))
return {};
std::filesystem::permissions(RANDOMDIR, std::filesystem::perms::owner_all, std::filesystem::perm_options::replace);
std::ofstream ofs(RANDOMDIR + "/.hookcode.asm", std::ios::trunc);
ofs << assemblyBuilder;
ofs.close();
std::string ret = execAndGet(
"cc -x assembler -c /tmp/hypr/.hookcode.asm -o /tmp/hypr/.hookbinary.o 2>&1 && objcopy -O binary -j .text /tmp/hypr/.hookbinary.o /tmp/hypr/.hookbinary2.o 2>&1");
std::string ret = execAndGet(std::string{"cc -x assembler -c " + RANDOMDIR + "/.hookcode.asm -o " + RANDOMDIR + "/.hookbinary.o 2>&1 && objcopy -O binary -j .text " +
RANDOMDIR + "/.hookbinary.o " + RANDOMDIR + "/.hookbinary2.o 2>&1"}
.c_str());
Debug::log(LOG, "[functionhook] assembler returned:\n{}", ret);
if (!std::filesystem::exists("/tmp/hypr/.hookbinary2.o")) {
std::filesystem::remove("/tmp/hypr/.hookcode.asm");
std::filesystem::remove("/tmp/hypr/.hookbinary.asm");
if (!std::filesystem::exists(RANDOMDIR + "/.hookbinary2.o")) {
std::filesystem::remove(RANDOMDIR + "/.hookcode.asm");
std::filesystem::remove(RANDOMDIR + "/.hookbinary.asm");
return {};
}
std::ifstream ifs("/tmp/hypr/.hookbinary2.o", std::ios::binary);
std::ifstream ifs(RANDOMDIR + "/.hookbinary2.o", std::ios::binary);
returns = {std::vector<char>(std::istreambuf_iterator<char>(ifs), {})};
ifs.close();
std::filesystem::remove("/tmp/hypr/.hookcode.asm");
std::filesystem::remove("/tmp/hypr/.hookbinary.o");
std::filesystem::remove("/tmp/hypr/.hookbinary2.o");
std::filesystem::remove_all(RANDOMDIR);
return returns;
}