diff options
| -rw-r--r-- | macros.mk | 1 | ||||
| -rw-r--r-- | obfuscator/README.md | 2 | ||||
| -rw-r--r-- | obfuscator/obfuscator.cpp | 100 |
3 files changed, 89 insertions, 14 deletions
@@ -7,6 +7,7 @@ CC?=clang LLVM_CONF?=llvm-config BUILD_MODE?=COV_NO_CLANG_1Z SHELL:=/bin/bash +MAKEFLAGS+=--warn-undefined-variables CXX_FLAGS=$(shell $(LLVM_CONF) --cxxflags) diff --git a/obfuscator/README.md b/obfuscator/README.md index 1fff79f..5262b5a 100644 --- a/obfuscator/README.md +++ b/obfuscator/README.md @@ -4,7 +4,7 @@ obfuscator is a C/C++ source-code obfuscation tool.<br/> ## Status You can find a list of the implemented features and the ones that will be implemented below.<br/> -If you have suggestions or recommendations for features to add please make an issue with the `obfuscator` label.<br/> +If you have suggestions or recommendations for features to add, please make an issue with the `obfuscator` label.<br/> ### Implemented Features * Identifier Obfuscation: Swaps the name of all identifiers with their hash. <br/> diff --git a/obfuscator/obfuscator.cpp b/obfuscator/obfuscator.cpp index f3a1b16..51e26b4 100644 --- a/obfuscator/obfuscator.cpp +++ b/obfuscator/obfuscator.cpp @@ -1,7 +1,8 @@ +/*first line intentionally left blank.*/ /***************************************************Project Mutator****************************************************/ //-*-c++-*- -/*first line intentionally left blank.*/ +// a C/C++ source code obfuscator /*Copyright (C) 2017 Farzad Sadeghi This program is free software; you can redistribute it and/or @@ -19,7 +20,6 @@ along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.*/ /*code structure inspired by Eli Bendersky's tutorial on Rewriters.*/ /**********************************************************************************************************************/ -/*FIXME-all classes should use replacements.*/ //@DEVI-FIXME-will mess up macros /**********************************************************************************************************************/ /*included modules*/ @@ -31,7 +31,7 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.* #include <cassert> #include <vector> #include <fstream> -#include <regex> +#include <dirent.h> /*LLVM headers*/ #include "clang/AST/AST.h" #include "clang/AST/ASTConsumer.h" @@ -52,7 +52,6 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.* #include "llvm/IR/Module.h" #include "llvm/IR/BasicBlock.h" #include "llvm/IR/Function.h" -#include "llvm/IR/Function.h" #include "llvm/Support/raw_ostream.h" #include "llvm/Linker/Linker.h" /**********************************************************************************************************************/ @@ -64,14 +63,72 @@ using namespace clang::driver; using namespace clang::tooling; /**********************************************************************************************************************/ /*global vars*/ - -static llvm::cl::OptionCategory MatcherSampleCategory("Matcher Sample"); +static llvm::cl::OptionCategory ObfuscatorCat("Obfuscator custom options"); /**********************************************************************************************************************/ //#define DBG /**********************************************************************************************************************/ -// kill all comments +class CryptoSponge { + public: + CryptoSponge() = default; + ~CryptoSponge() {} +}; /**********************************************************************************************************************/ -// kill all whitespace, add , and ; +std::vector<std::string> listEverything(std::string _path) { + std::vector<std::string> dummy_; + DIR *dir_; + struct dirent* ent_; + if ((dir_ = opendir(_path.c_str())) != nullptr) { + while((ent_ = readdir(dir_)) != nullptr) { + std::cout << "name: " << ent_->d_name << "\ttype:" << ent_->d_type << "\n"; + if (ent_->d_type == DT_DIR) {std::cout << "ZZZ\n";} + dummy_.push_back(ent_->d_name); + } + } + else { + perror("could not open directory."); + } + return dummy_; +} + +std::tuple<std::string, std::string, std::string> getNameFromPath(std::string _path) { + size_t pos = _path.rfind("/"); + size_t pos2 = _path.rfind("."); + auto extension_ = _path.substr(pos2 + 1, std::string::npos); + auto name_ = _path.substr(pos + 1, pos2 - pos - 1); + auto path_ = _path.substr(0, pos); + return std::make_tuple(name_, extension_, path_); +} + +std::string nameMaker(std::string _name, std::string _extension, std::string _extra = "obfusc") { + if (_extra == "") { + return _name + _extra + "." + _extension; + } + else { + return _name + "-" + _extra + "." + _extension; + } +} + +std::string getHashedName(std::string _name) { + std::size_t hash = std::hash<std::string>{}(_name); + return "FILE" + std::to_string(hash); +} + +std::unordered_map<std::string, std::string> hashFilenames(const std::vector<std::string>& _filenames) { + std::unordered_map<std::string, std::string> ret_map_; + for (auto &iter : _filenames) { + auto filename_ = getNameFromPath(iter); + std::size_t hash = std::hash<std::string>{}(std::get<0>(filename_)); + auto new_name_ = "FILE" + std::to_string(hash); + ret_map_.insert(std::make_pair(iter, new_name_)); + } + return ret_map_; +} + +void dumpHashFilenames(std::unordered_map<std::string, std::string> _map) { + for (auto &iter : _map) { + std::cout << "Key: " << iter.first << "\t" << "Value: " << iter.second << "\n"; + } +} /**********************************************************************************************************************/ class CalledFunc : public MatchFinder::MatchCallback { public: @@ -195,7 +252,7 @@ class ClassDecl : public MatchFinder::MatchCallback { if (RD->isAnonymousStructOrUnion()) return void(); if (RD->isInjectedClassName()) {} else {return void();} - auto TD = RD->getCanonicalDecl(); + //auto TD = RD->getCanonicalDecl(); std::string varname = RD->getIdentifier()->getName().str(); std::size_t hash = std::hash<std::string>{}(varname); std::string newname = "ID" + std::to_string(hash); @@ -221,7 +278,6 @@ public: explicit PPInclusion (SourceManager *SM, Rewriter *Rewrite) : SM(*SM), Rewrite(*Rewrite) {} virtual void MacroDefined(const Token &MacroNameTok, const MacroDirective *MD) { - const MacroInfo* MI = MD->getMacroInfo(); SourceLocation SL = MacroNameTok.getLocation(); if (!SM.isInMainFile(SL)) return void(); @@ -241,6 +297,12 @@ public: Rewrite.ReplaceText(SourceRange(MacroNameTok.getLocation(), MacroNameTok.getLocation().getLocWithOffset(MacroNameTok.getLength())), newname); } + virtual void InclusionDirective (SourceLocation HashLoc, const Token &IncludeTok, + StringRef FileName, bool IsAngled, CharSourceRange FilenameRange, const FileEntry *File, + StringRef SearchPath, StringRef RelativePath, const clang::Module *Imported) { + std::cout << "Include filename: " << FileName.str() << "\n"; + } + private: const SourceManager &SM; Rewriter &Rewrite; @@ -315,7 +377,9 @@ class CommentWiper { std::ifstream sourcefile; sourcefile.open("../test/bruisertest/obfuscator-tee"); std::ofstream dupe; - dupe.open("./dupe.cpp"); + auto filename_ = getNameFromPath(filepath); + dupe.open(nameMaker(getHashedName(std::get<0>(filename_)), std::get<1>(filename_), "")); + //dupe.open("./dupe.cpp"); std::string line; int d_quote = 0; @@ -326,6 +390,7 @@ class CommentWiper { line += "\n"; for (unsigned int ch = 0; ch < line.length(); ++ch) { if (!skip) { + /*@DEVI-FIXME-it coutns double qoutes and qoutes as one*/ if ((line[ch] == '\"' || line[ch] == '\'')) { if (ch > 1) { if (line[ch - 1] != '\\') { @@ -385,6 +450,7 @@ class WhitespaceWarper { for (auto &filepath : sourcelist) { std::ifstream sourcefile; sourcefile.open("../test/bruisertest/obfuscator-tee"); + auto filename_ = getNameFromPath(filepath); std::ofstream dupe; dupe.open("./dupe2.cpp"); std::string line; @@ -412,16 +478,24 @@ class WhitespaceWarper { std::vector<std::string> sourcelist; }; /**********************************************************************************************************************/ +/**********************************************************************************************************************/ /*Main*/ int main(int argc, const char **argv) { - CommonOptionsParser op(argc, argv, MatcherSampleCategory); + CommonOptionsParser op(argc, argv, ObfuscatorCat); const std::vector<std::string> &SourcePathList = op.getSourcePathList(); ClangTool Tool(op.getCompilations(), op.getSourcePathList()); int ret = Tool.run(newFrontendActionFactory<ObfFrontendAction>().get()); - WhitespaceWarper WW(SourcePathList); + //WhitespaceWarper WW(SourcePathList); //WW.run(); CommentWiper CW(SourcePathList); CW.run(); + dumpHashFilenames(hashFilenames(SourcePathList)); + listEverything("./"); +#if 0 + for (auto &iter : SourcePathList) { + std::cout << "name: " << std::get<0>(getNameFromPath(iter)) << "\t" << "extension: " << std::get<1>(getNameFromPath(iter)) << "\tpath: " << std::get<2>(getNameFromPath(iter)) << "\n"; + } +#endif return ret; } /**********************************************************************************************************************/ |