X-Git-Url: https://git.teslayout.com/public/public/public/?a=blobdiff_plain;f=example%2Fdiameter%2FpcapDecoder%2Fmain.cpp;h=69c4f19ddf4b53b7cae498b870e5ab0c7fc1f1a1;hb=c2d9954484b92913d1289160efa6a9055cb9bdf1;hp=80278e4273a6a5cfd2eec38a5c8092598797674a;hpb=3fd99ed14e449e1e221d689db34c3b65b533a882;p=anna.git diff --git a/example/diameter/pcapDecoder/main.cpp b/example/diameter/pcapDecoder/main.cpp index 80278e4..69c4f19 100644 --- a/example/diameter/pcapDecoder/main.cpp +++ b/example/diameter/pcapDecoder/main.cpp @@ -55,6 +55,9 @@ #include #include #include +//#include // typedef unsigned int ApplicationId; +#include // ApplicationId anna::diameter::codec::functions::getApplicationId(const anna::DataBlock &) throw(anna::RuntimeException); + using namespace anna; using namespace anna::diameter; @@ -147,6 +150,7 @@ typedef std::map < int /* frame */, Payload > payloads_t; typedef std::map < int /* frame */, Payload >::const_iterator payloads_it; payloads_t G_payloads; anna::diameter::codec::Message G_codecMsg; +anna::diameter::codec::Engine *G_codecEngine; // Sniffing structures //////////////////////////////////////////////////////////////////////////////////// @@ -323,6 +327,17 @@ void _exit(const std::string &message, int resultCode = 1) { exit(resultCode); } +// Decodes a diameter message coming from a datablock +void decodeDataBlock(const anna::DataBlock &db, unsigned int & detectedApplicationId) throw() { + try { + detectedApplicationId = anna::diameter::codec::functions::getApplicationId(db); + G_codecEngine->setDictionary(detectedApplicationId); + G_codecMsg.decode(db); + } catch(RuntimeException &ex) { + _exit(ex.asString()); + } +} + //------------------------------------------------------------------- int main(int argc, char **argv) { @@ -334,91 +349,99 @@ int main(int argc, char **argv) { //check command line arguments if(argc < 3) { std::string msg = "Usage: "; msg += exec; - msg += " [--non-strict-validation]\n\n"; - msg += " dictionaries: list of comma-separated xml dictionaries (one or more can be provided).\n"; + msg += " [--no-validation] [--ignore-flags]\n\n"; + msg += " stacks: \n"; + msg += " This is a list of #-separated stacks defined by a comma-separated pair \n"; + msg += " If only one stack is provided, application-id could be omitted and then, all the messages will be decoded with the\n"; + msg += " dictionary regardless the value of the application-id (the stack will be registered with id=0).\n"; msg += " Input file: normally a pcap file, but hexadecimal content (colons allowed) can also be decoded (use '.hex' extension).\n"; - msg += " --non-strict-validation: no validation is performed, and wrong flags regarding dictionary are ignored in xml representation."; + msg += " --no-validation: no validation is performed.\n"; + msg += " --ignore-flags: wrong flags regarding dictionary are ignored in xml representation."; _exit(msg); } // Command-line parameters: - std::string dictionaries = argv[1]; + std::string stacks = argv[1]; std::string inputFile = argv[2]; bool isHex = (inputFile.substr(inputFile.find_last_of(".") + 1) == "hex"); std::string outputFile = inputFile; // extension will be added later - std::string optional = argv[3] ? argv[3] : ""; - bool non_strict_validation = ((argc == 4) && (optional == "--non-strict-validation")); - std::cout << "Dictionary(ies) provided: " << dictionaries << std::endl; - std::cout << "Input file provided: " << inputFile << std::endl; - std::cout << "Validation kindness: " << (non_strict_validation ? "non strict" : "strict") << std::endl; - // Logger and engines: - Logger::setLevel(Logger::Debug); + std::string optionals; + int indx = 3; + + while(indx < argc) { optionals += " "; optionals += argv[indx]; indx++; } + + bool no_validation = (optionals.find("--no-validation") != std::string::npos); + bool ignore_flags = (optionals.find("--ignore-flags") != std::string::npos); + bool debug = (optionals.find("--debug") != std::string::npos); + Logger::setLevel(debug ? Logger::Debug:Logger::Warning); Logger::initialize(execBN.c_str(), new TraceWriter(filetrace.c_str(), 2048000)); - anna::diameter::codec::Engine *codecEngine = - new anna::diameter::codec::Engine(); + G_codecEngine = new anna::diameter::codec::Engine(); anna::diameter::stack::Engine &stackEngine = anna::diameter::stack::Engine::instantiate(); + // Register stacks: try { - anna::diameter::stack::Dictionary * d = stackEngine.createDictionary( - 0 /* stack id */); - // Analyze comma-separated list: - anna::Tokenizer lst; - lst.apply(dictionaries, ","); - - if(lst.size() >= 1) { // always true (at least one, because -dictionary is mandatory) - anna::Tokenizer::const_iterator tok_min(lst.begin()); - anna::Tokenizer::const_iterator tok_max(lst.end()); - anna::Tokenizer::const_iterator tok_iter; - std::string pathFile; - d->allowUpdates(); - - for(tok_iter = tok_min; tok_iter != tok_max; tok_iter++) { - pathFile = anna::Tokenizer::data(tok_iter); - d->load(pathFile); + anna::Tokenizer stacksTok; + stacksTok.apply(stacks, "#"); + anna::Tokenizer::const_iterator stacks_it, stack_it; + + for(stacks_it = stacksTok.begin(); stacks_it != stacksTok.end(); stacks_it++) { + std::string stack = anna::Tokenizer::data(stacks_it); + anna::Tokenizer stackTok; + stackTok.apply(stack, ","); + + if(stackTok.size() == 1) { + if(stacksTok.size() != 1) + throw anna::RuntimeException("Application Id value is mandatory when more than one stack is going to be configured", ANNA_FILE_LOCATION); + + anna::diameter::stack::Dictionary * d = stackEngine.createDictionary(0 /* no matter */, stack); // the stack is the dictionary + G_codecEngine->setDictionary(d); + break; } - } - codecEngine->setDictionary(d); - //LOGDEBUG(anna::Logger::debug(codecEngine->asString(), ANNA_FILE_LOCATION)); - - if(lst.size() > 1) { - std::string all_in_one = "./dictionary-all-in-one.xml"; - std::ofstream out(all_in_one, std::ifstream::out); - std::string buffer = d->asXMLString(); - out.write(buffer.c_str(), buffer.size()); - out.close(); - std::cout << "Written accumulated '" << all_in_one - << "' (provide it next time to be more comfortable)." << std::endl; + if(stackTok.size() != 2) + throw anna::RuntimeException("Each stack must be in the form '#'", ANNA_FILE_LOCATION); + + stack_it = stackTok.begin(); + unsigned int stackId = atoll(anna::Tokenizer::data(stack_it)); + stack_it++; + std::string file = anna::Tokenizer::data(stack_it); + anna::diameter::stack::Dictionary * d = stackEngine.createDictionary(stackId, file); } + + std::cout << "Stacks provided: " << std::endl; + std::cout << anna::functions::tab(stackEngine.asString(false /* light */)); + std::cout << std::endl; + std::cout << "Input file provided: " << inputFile << std::endl; + std::cout << "Validation: " << (!no_validation ? "yes" : "no") << std::endl; + std::cout << "Ignore Flags: " << (ignore_flags ? "yes" : "no") << std::endl; + std::cout << std::endl; } catch(anna::RuntimeException &ex) { _exit(ex.asString()); } - if(non_strict_validation) { - codecEngine->setValidationMode(anna::diameter::codec::EngineImpl::ValidationMode::Never); - codecEngine->ignoreFlagsOnValidation(true); - } + // Validation kindness + G_codecEngine->setValidationDepth(anna::diameter::codec::EngineImpl::ValidationDepth::Complete); // complete validation for better reports + if(no_validation) G_codecEngine->setValidationMode(anna::diameter::codec::EngineImpl::ValidationMode::Never); + + if(ignore_flags) G_codecEngine->ignoreFlagsOnValidation(true); // Tracing: //if (cl.exists("trace")) // anna::Logger::setLevel(anna::Logger::asLevel(cl.getValue("trace"))); // Check hex content input file (look extension): anna::DataBlock db_aux(true); + unsigned int detectedApplicationId; if(isHex) { if(!getDataBlockFromHexFile(inputFile, db_aux)) _exit("Error reading hex file provided"); - try { - G_codecMsg.decode(db_aux); - } catch(RuntimeException &ex) { - _exit(ex.asString()); - } - + // Decode datablock: + decodeDataBlock(db_aux, detectedApplicationId); // Open output file: outputFile += ".as.xml"; - std::ofstream out(outputFile, std::ifstream::out); + std::ofstream out(outputFile.c_str(), std::ifstream::out); out << G_codecMsg.asXMLString(); // Close output file: out.close(); @@ -454,7 +477,7 @@ int main(int argc, char **argv) { // Print payloads ////////////////////////////////////////////////////////////////////////////////////////////// // Open output file: outputFile += ".report"; - std::ofstream out(outputFile, std::ifstream::out); + std::ofstream out(outputFile.c_str(), std::ifstream::out); for(payloads_it it = G_payloads.begin(); it != G_payloads.end(); it++) { LOGDEBUG( @@ -467,21 +490,19 @@ int main(int argc, char **argv) { out << "===================================================================================================" << std::endl; - out << "Date: " << ts_str << std::endl; - out << "Timestamp: " << std::to_string(ts) << "." - << std::to_string(tsu) << std::endl; - out << "Origin IP: " << (it->second).getSourceIP() << std::endl; - out << "Destination IP: " << (it->second).getDestinationIP() << std::endl; - out << std::endl; + out << "Date: " << ts_str << std::endl; + out << "Timestamp: " << anna::functions::asString((int)ts) << "." + << anna::functions::asString((int)tsu) << std::endl; + out << "Origin IP: " << (it->second).getSourceIP() << std::endl; + out << "Destination IP: " << (it->second).getDestinationIP() << std::endl; // decode hex string: anna::functions::fromHexString((it->second).getDataAsHex(), db_aux); - - try { - G_codecMsg.decode(db_aux); - } catch(RuntimeException &ex) { - _exit(ex.asString()); - } - + // Decode datablock: + decodeDataBlock(db_aux, detectedApplicationId); + // Stack identification: + //out << "Application Id: " << detectedApplicationId << std::endl; + out << "Dictionary used: " << G_codecEngine->getDictionary()->getName() << std::endl; + out << std::endl; out << G_codecMsg.asXMLString(); }