X-Git-Url: https://git.teslayout.com/public/public/public/?a=blobdiff_plain;f=example%2Fdiameter%2FpcapDecoder%2Fmain.cpp;h=97474e8428a5cb9d2a32b241ddedb2c8220ee5d5;hb=5a6cba5fde2b2f538a7515f8293cc0a8d9589dfa;hp=d05a0e9c79ed1a8cb6d6e83502bdce7b9413ebed;hpb=58f32a1cd9963d78641ca100ad311094bfc2db30;p=anna.git diff --git a/example/diameter/pcapDecoder/main.cpp b/example/diameter/pcapDecoder/main.cpp index d05a0e9..97474e8 100644 --- a/example/diameter/pcapDecoder/main.cpp +++ b/example/diameter/pcapDecoder/main.cpp @@ -1,39 +1,11 @@ -// ANNA - Anna is Not Nothingness Anymore -// -// (c) Copyright 2005-2014 Eduardo Ramos Testillano & Francisco Ruiz Rayo -// -// http://redmine.teslayout.com/projects/anna-suite -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions -// are met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following disclaimer -// in the documentation and/or other materials provided with the -// distribution. -// * Neither the name of the copyright holder nor the names of its -// contributors may be used to endorse or promote products derived from -// this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -// -// Authors: eduardo.ramos.testillano@gmail.com -// cisco.tierra@gmail.com - -// Standard +// ANNA - Anna is Not Nothingness Anymore // +// // +// (c) Copyright 2005-2015 Eduardo Ramos Testillano & Francisco Ruiz Rayo // +// // +// See project site at http://redmine.teslayout.com/projects/anna-suite // +// See accompanying file LICENSE or copy at http://www.teslayout.com/projects/public/anna.LICENSE // + + #include #include #include @@ -46,21 +18,13 @@ #include #include -#include #include #include #include #include -#include -#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; // Payload and frame metadata ///////////////////////////////////////////////////////////////////////////// class Payload { @@ -85,20 +49,20 @@ public: } } - void setSourceIP(const std::string &srcIP) throw() { + void setSourceIP(const std::string &srcIP) { _sourceIP = srcIP; } - void setDestinationIP(const std::string &dstIP) throw() { + void setDestinationIP(const std::string &dstIP) { _destinationIP = dstIP; } - void setTimestamp(time_t ts) throw() { + void setTimestamp(time_t ts) { _timestamp = ts; } - void setTimestampU(int tsu) throw() { + void setTimestampU(int tsu) { _timestampU = tsu; } // Returns true if completed: - bool appendData(const char *data, size_t size) throw(RuntimeException) { + bool appendData(const char *data, size_t size) noexcept(false) { LOGDEBUG( Logger::debug(anna::functions::asString("Appending %d bytes", size), ANNA_FILE_LOCATION)); _data.append(data, size); @@ -115,7 +79,7 @@ public: return true; } - void reset() throw() { + void reset() { _sourceIP = ""; _destinationIP = ""; _timestamp = 0; @@ -124,22 +88,22 @@ public: _diameterLength = -1; // not calculated yet } - const std::string &getSourceIP() const throw() { + const std::string &getSourceIP() const { return _sourceIP; } - const std::string &getDestinationIP() const throw() { + const std::string &getDestinationIP() const { return _destinationIP; } - time_t getTimestamp() const throw() { + time_t getTimestamp() const { return _timestamp; } - int getTimestampU() const throw() { + int getTimestampU() const { return _timestampU; } - const std::string &getData() const throw() { + const std::string &getData() const { return _data; } - std::string getDataAsHex() const throw() { + std::string getDataAsHex() const { return anna::functions::asHexString( anna::DataBlock(_data.c_str(), _data.size())); } @@ -149,8 +113,6 @@ public: 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 //////////////////////////////////////////////////////////////////////////////////// @@ -217,12 +179,10 @@ struct sniff_tcp { u_char *getPayload(const u_char* packet, int packetSize, int &payloadSize, std::string &srcIp, std::string &dstIp, int &fragmentId, bool &dfFlag, bool &mfFlag, int &fragmentOffset) { - const struct sniff_ethernet *ethernet; /* The ethernet header */ const struct sniff_ip *ip; /* The IP header */ const struct sniff_tcp *tcp; /* The TCP header */ u_int size_ip; u_int size_tcp; - ethernet = (struct sniff_ethernet*)(packet); ip = (struct sniff_ip*)(packet + SIZE_ETHERNET); size_ip = IP_HL(ip) * 4; // 4 bytes per 32 bits word @@ -293,7 +253,7 @@ void my_callback(u_char *useless, const struct pcap_pkthdr* pkthdr, count++; } -bool getDataBlockFromHexFile(const std::string &pathfile, anna::DataBlock &db) throw() { +bool getDataBlockFromHexFile(const std::string &pathfile, anna::DataBlock &db) { // Get hex string static char buffer[8192]; std::ifstream infile(pathfile.c_str(), std::ifstream::in); @@ -327,17 +287,6 @@ 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) { @@ -347,113 +296,31 @@ int main(int argc, char **argv) { std::cout << std::endl; //check command line arguments - if(argc < 3) { + if(argc < 2) { std::string msg = "Usage: "; msg += exec; - 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 += " --no-validation: no validation is performed.\n"; - msg += " --ignore-flags: wrong flags regarding dictionary are ignored in xml representation."; + msg += " [--write-hex: to write hex files] [--debug: activates debug level traces (warning by default)]\n\n"; _exit(msg); } // Command-line parameters: - std::string stacks = argv[1]; - std::string inputFile = argv[2]; - bool isHex = (inputFile.substr(inputFile.find_last_of(".") + 1) == "hex"); + std::string inputFile = argv[1]; + //bool isHex = (inputFile.substr(inputFile.find_last_of(".") + 1) == "hex"); std::string outputFile = inputFile; // extension will be added later std::string optionals; - int indx = 3; - + int indx = 2; 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); - Logger::setLevel(Logger::Warning); + bool debug = (optionals.find("--debug") != std::string::npos); + bool writeHex = (optionals.find("--write-hex") != std::string::npos); + Logger::setLevel(debug ? Logger::Debug:Logger::Warning); Logger::initialize(execBN.c_str(), new TraceWriter(filetrace.c_str(), 2048000)); - G_codecEngine = new anna::diameter::codec::Engine(); - anna::diameter::stack::Engine &stackEngine = - anna::diameter::stack::Engine::instantiate(); - // Register stacks: - try { - 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; - } - - 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()); - } - - // 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"); - - // Decode datablock: - decodeDataBlock(db_aux, detectedApplicationId); - // Open output file: - outputFile += ".as.xml"; - std::ofstream out(outputFile.c_str(), std::ifstream::out); - out << G_codecMsg.asXMLString(); - // Close output file: - out.close(); - std::string msg = "Open '"; msg += filetrace; msg += "' in order to see process traces.\n"; - msg += "Open '"; msg += outputFile; msg += "' to see decoding results."; - _exit(msg, 0); - } - // Normal input: pcap file: // SNIFFING //////////////////////////////////////////////////////////////////////////////////////////////7 //temporary packet buffers - struct pcap_pkthdr header; // The header that pcap gives us - const u_char *packet; // The actual packet + //struct pcap_pkthdr header; // The header that pcap gives us + //const u_char *packet; // The actual packet //------------------ //open the pcap file pcap_t *handle; @@ -462,6 +329,25 @@ int main(int argc, char **argv) { if(handle == NULL) _exit(errbuf, 2); + // TODO: add filtering. At the moment, pcap must be previously filtered for diameter protocol ('tcp port 3868' or any other filter allowed) + /* + // Filtering: + std::string filter = ?????; + struct bpf_program _fp; + struct bpf_program *fp = &_fp; + bpf_u_int32 netmask = 4294967295; // FFFFFFFF + + if (pcap_compile(handle, fp, (char*)(filter.c_str()), 1, netmask) == -1) { + std::cerr << "Couldn't compile the filter " << filter << std::endl; + return(2); + } + + if (pcap_setfilter(handle, fp) == -1) { + std::cerr << "Couldn't set the filter " << filter << std::endl; + return(2); + } + */ + //begin processing the packets in this particular file int packets = -1; @@ -473,6 +359,7 @@ int main(int argc, char **argv) { } pcap_close(handle); //close the pcap file + // Print payloads ////////////////////////////////////////////////////////////////////////////////////////////// // Open output file: outputFile += ".report"; @@ -485,30 +372,31 @@ int main(int argc, char **argv) { int tsu = (it->second).getTimestampU(); std::string ts_str = ctime(&ts); ts_str.erase(ts_str.find("\n")); - out << std::endl; - out - << "===================================================================================================" - << std::endl; + out << "Frame: " << anna::functions::asString(it->first) << 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); - // Decode datablock: - decodeDataBlock(db_aux, detectedApplicationId); - // Stack identification: - //out << "Application Id: " << detectedApplicationId << std::endl; - out << "Dictionary used: " << G_codecEngine->getDictionary()->getName() << std::endl; + out << "Destination IP: " << (it->second).getDestinationIP() << std::endl; + out << "Hex String: " << (it->second).getDataAsHex() << std::endl; + + // Create hex file: + if (writeHex) { + std::string hexFile = anna::functions::asString(it->first) + ".hex"; + std::ofstream hex(hexFile.c_str(), std::ifstream::out); + hex << (it->second).getDataAsHex(); + hex.close(); + } + out << std::endl; - out << G_codecMsg.asXMLString(); } // Close output file: out.close(); std::string msg = "Open '"; msg += filetrace; msg += "' in order to see process traces.\n"; - msg += "Open '"; msg += outputFile; msg += "' to see decoding results."; + msg += "Open '"; msg += outputFile; msg += "' to see decoding results.\n"; + if (writeHex) msg += "Open '.hex' to see specific frame data."; _exit(msg, 0); }