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https://github.com/hyprwm/Hyprland
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hooksystem: use a random 700 directory for assembler
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parent
82a6fba6ec
commit
28c8561924
1 changed files with 17 additions and 10 deletions
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@ -1,6 +1,7 @@
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#include "HookSystem.hpp"
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#include "../debug/Log.hpp"
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#include "../helpers/VarList.hpp"
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#include "../managers/TokenManager.hpp"
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#define register
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#include <udis86.h>
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@ -135,24 +136,30 @@ CFunctionHook::SAssembly CFunctionHook::fixInstructionProbeRIPCalls(const SInstr
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currentAddress += len;
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}
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std::ofstream ofs("/tmp/hypr/.hookcode.asm", std::ios::trunc);
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const auto RANDOMDIR = "/tmp/hypr/" + g_pTokenManager->getRandomUUID();
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if (!std::filesystem::create_directory(RANDOMDIR))
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return {};
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std::filesystem::permissions(RANDOMDIR, std::filesystem::perms::owner_all, std::filesystem::perm_options::replace);
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std::ofstream ofs(RANDOMDIR + "/.hookcode.asm", std::ios::trunc);
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ofs << assemblyBuilder;
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ofs.close();
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std::string ret = execAndGet(
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"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");
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std::string ret = execAndGet(std::string{"cc -x assembler -c " + RANDOMDIR + "/.hookcode.asm -o " + RANDOMDIR + "/.hookbinary.o 2>&1 && objcopy -O binary -j .text " +
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RANDOMDIR + "/.hookbinary.o " + RANDOMDIR + "/.hookbinary2.o 2>&1"}
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.c_str());
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Debug::log(LOG, "[functionhook] assembler returned:\n{}", ret);
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if (!std::filesystem::exists("/tmp/hypr/.hookbinary2.o")) {
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std::filesystem::remove("/tmp/hypr/.hookcode.asm");
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std::filesystem::remove("/tmp/hypr/.hookbinary.asm");
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if (!std::filesystem::exists(RANDOMDIR + "/.hookbinary2.o")) {
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std::filesystem::remove(RANDOMDIR + "/.hookcode.asm");
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std::filesystem::remove(RANDOMDIR + "/.hookbinary.asm");
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return {};
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}
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std::ifstream ifs("/tmp/hypr/.hookbinary2.o", std::ios::binary);
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std::ifstream ifs(RANDOMDIR + "/.hookbinary2.o", std::ios::binary);
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returns = {std::vector<char>(std::istreambuf_iterator<char>(ifs), {})};
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ifs.close();
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std::filesystem::remove("/tmp/hypr/.hookcode.asm");
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std::filesystem::remove("/tmp/hypr/.hookbinary.o");
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std::filesystem::remove("/tmp/hypr/.hookbinary2.o");
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std::filesystem::remove_all(RANDOMDIR);
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return returns;
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}
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