/********************************************************************* * * AUTHORIZATION TO USE AND DISTRIBUTE * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that: * * (1) source code distributions retain this paragraph in its entirety, * * (2) distributions including binary code include this paragraph in * its entirety in the documentation or other materials provided * with the distribution, and * * (3) all advertising materials mentioning features or use of this * software display the following acknowledgment: * * "This product includes software written and developed * by Brian Adamson and Joe Macker of the Naval Research * Laboratory (NRL)." * * The name of NRL, the name(s) of NRL employee(s), or any entity * of the United States Government may not be used to endorse or * promote products derived from this software, nor does the * inclusion of the NRL written and developed software directly or * indirectly suggest NRL or United States Government endorsement * of this product. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ********************************************************************/ #include "mgenMsg.h" #include "mgen.h" #include #include MgenMsg::MgenMsg() : version(VERSION), flags(0), msg_len(0), packet_header_len(0), gps_status(INVALID_GPS), payload_len(0), msg_error(ERROR_NONE) { } // (TBD) we should add a "bufferLen" parameter to this? unsigned int MgenMsg::Pack(char* buffer, bool includeChecksum) { register unsigned int len = 0; // If these assertions fail, the code base needs some reworking // for compiler with different size settings (or set compiler // settings so these values work) ASSERT(sizeof(char) == 1); ASSERT(sizeof(short) == 2); ASSERT(sizeof(long) == 4); // msg_len unsigned short temp16 = htons(msg_len); memcpy(buffer+len, &temp16, sizeof(short)); len += sizeof(short); // version buffer[len++] = (char)version; // flags buffer[len++] = (char)flags; // flow_id unsigned long temp32 = htonl(flow_id); memcpy(buffer+len, &temp32, sizeof(long)); len += sizeof(long); // seq_num temp32 = htonl(seq_num); memcpy(buffer+len, &temp32, sizeof(long)); len += sizeof(long); // tx_time(seconds) temp32 = htonl(tx_time.tv_sec); memcpy(buffer+len, &temp32, sizeof(long)); len += sizeof(long); // tx_time(microseconds) temp32 = htonl(tx_time.tv_usec); memcpy(buffer+len, &temp32, sizeof(long)); len += sizeof(long); // dst_port temp16 = htons(dst_addr.GetPort()); memcpy(buffer+len, &temp16, sizeof(short)); len += sizeof(short); // dst_addr fields AddressType addrType; switch (dst_addr.GetType()) { case ProtoAddress::IPv4: addrType = IPv4; break; case ProtoAddress::IPv6: addrType = IPv6; break; #ifdef SIMULATE case ProtoAddress::SIM: addrType = SIM; break; #endif // SIMULATE default: DMSG(0, "MgenMsg::Pack() Error: unsupported address type\n"); return 0; } unsigned char addrLen = dst_addr.GetLength(); // dst_addr(type) buffer[len++] = (char)addrType; // dst_addr(len) buffer[len++] = (char)addrLen; // dst_addr(addr) memcpy(buffer+len, dst_addr.GetRawHostAddress(), addrLen); len += addrLen; // The fields below are optional and only // packed if the msg_len permits unsigned short msgLen = msg_len; // host_addr fields (not yet supported - TBD) switch (host_addr.GetType()) { case ProtoAddress::IPv4: addrType = IPv4; break; case ProtoAddress::IPv6: addrType = IPv6; break; #ifdef SIMULATE case ProtoAddress::SIM: addrType = SIM; break; #endif // SIMULATE default: addrType = INVALID_ADDRESS; } if (host_addr.IsValid()) addrLen = host_addr.GetLength(); else addrLen = 0; // Is there room for the host_port and host_addr? if (msgLen >= (len + addrLen + 4)) { // host_port if (host_addr.IsValid()) temp16 = htons(host_addr.GetPort()); else temp16 = 0; memcpy(buffer+len, &temp16, sizeof(short)); len += sizeof(short); // host_addr(type) buffer[len++] = (char)addrType; // host_addr(len) buffer[len++] = (char)addrLen; // host_addr(addr) if (addrLen) memcpy(buffer+len, host_addr.GetRawHostAddress(), addrLen); len += addrLen; } else { if (msgLen < len) { DMSG(0, "MgenMsg::Pack() Error: minimum MGEN message size not met\n"); return 0; } memset(buffer+len, 0, msgLen-len); packet_header_len = len; return msgLen; } // GPS position information // Is there room for the GPS info? if (msgLen >= (len + 13)) { // latitude temp32 = htonl((unsigned long)((latitude + 180.0)*60000.0)); memcpy(buffer+len, &temp32, sizeof(long)); len += sizeof(long); // longitude temp32 = htonl((unsigned long)((longitude + 180.0)*60000.0)); memcpy(buffer+len, &temp32, sizeof(long)); len += sizeof(long); // altitude temp32 = htonl(altitude); memcpy(buffer+len, &temp32, sizeof(long)); len += sizeof(long); // status buffer[len++] = (char) gps_status; } else { memset(buffer+len, 0, msgLen-len); packet_header_len = len; return msgLen; } // "reserved" field buffer[len++] = 0; packet_header_len = len; // Optional user-defined payload if (msgLen >= (len + sizeof(short) + payload_len)) { // payload_len temp16 = htons(payload_len); memcpy(buffer+len, &temp16, sizeof(short)); len += sizeof(short); // payload memcpy(buffer+len, payload, payload_len); len += payload_len; } else { // payload_len (payload didn't fit) memset(buffer+len, 0, msgLen - len); return msgLen; } if (includeChecksum) { if (msgLen > (len + 4)) { buffer[FLAGS_OFFSET] |= CHECKSUM; // set "CHECKSUM" flag UINT32 checksumPosition = msgLen - 4; // Compute checksum (not incl. checksum itself) UINT32 checksum = ComputeCRC32((unsigned char*)buffer, msgLen-4); checksum = htonl(checksum); // convert to network byte order memcpy(buffer+checksumPosition, &checksum, 4); } else { DMSG(0, "MgenMsg::Pack() no room for checksum\n"); } } return msgLen; } // end MgenMsg::Pack() bool MgenMsg::Unpack(const char* buffer, UINT16 bufferLen, bool forceChecksum) { // init optional fields host_addr.Invalidate(); gps_status = INVALID_GPS; reserved = 0; payload_len = 0; payload = NULL; register unsigned int len = 0; if (bufferLen < MIN_SIZE) { DMSG(0, "MgenMsg::Unpack() error: short message\n"); msg_error = ERROR_LENGTH; return false; } // Unpack "user specified" msg_len unsigned short temp16; memcpy(&temp16, buffer+len, sizeof(short)); msg_len = ntohs(temp16); len += sizeof(short); // version version = (unsigned char)buffer[len++]; // flags flags = (unsigned char)buffer[len++]; // Use checksum if forced or available if (forceChecksum || (0 != (flags & CHECKSUM))) { UINT32 checksumPosition = bufferLen - 4; UINT32 recvdChecksum; memcpy(&recvdChecksum, buffer+checksumPosition, 4); recvdChecksum = ntohl(recvdChecksum); // Compute checksum (not incl. checksum itself) UINT32 calculatedChecksum = ComputeCRC32((unsigned char*)buffer, bufferLen-4); if (calculatedChecksum != recvdChecksum) { DMSG(0, "MgenMsg::Unpack() error: checksum failure\n"); msg_error = ERROR_CHECKSUM; return false; } } if (version != VERSION) { DMSG(0, "MgenMsg::Unpack() error: bad protocol version\n"); msg_error = ERROR_VERSION; return false; } // flow_id unsigned long temp32; memcpy(&temp32, buffer+len, sizeof(long)); flow_id = ntohl(temp32); len += sizeof(long); // seq_num memcpy(&temp32, buffer+len, sizeof(long)); seq_num = ntohl(temp32); len += sizeof(long); // tx_sec(seconds) memcpy(&temp32, buffer+len, sizeof(long)); tx_time.tv_sec = ntohl(temp32); len += sizeof(long); // tx_usec(microseconds) memcpy(&temp32, buffer+len, sizeof(long)); tx_time.tv_usec = ntohl(temp32); len += sizeof(long); // dst_port memcpy(&temp16, buffer+len, sizeof(short)); unsigned short dstPort = ntohs(temp16); len += sizeof(short); // dst_addr(type) ProtoAddress::Type addrType; switch (buffer[len++]) { case IPv4: addrType = ProtoAddress::IPv4; break; case IPv6: addrType = ProtoAddress::IPv6; break; #ifdef SIMULATE case SIM: addrType = ProtoAddress::SIM; break; #endif // SIMULATE default: DMSG(0, "MgenMsg::Unpack() unsupported address type\n"); msg_error = ERROR_DSTADDR; return false; } // dst_addr(len) unsigned int addrLen = (unsigned char)buffer[len++]; // dst_addr(addr) dst_addr.SetRawHostAddress(addrType, buffer+len, addrLen); dst_addr.SetPort(dstPort); len += addrLen; // host_addr fields if ((len+4) <= bufferLen) { // host_port memcpy(&temp16, buffer+len, sizeof(short)); unsigned short hostPort = ntohs(temp16); len += sizeof(short); // host_addr(type) switch (buffer[len++]) { case IPv4: addrType = ProtoAddress::IPv4; break; case IPv6: addrType = ProtoAddress::IPv6; break; default: addrType = ProtoAddress::INVALID; //DMSG(0, "MgenMsg::Unpack() unsupported host_addr type\n"); //return false; break; } // host_addr(len) addrLen = (unsigned char)buffer[len++]; // host_addr(addr) if ((len+addrLen) <= bufferLen) { if (ProtoAddress::INVALID != addrType) { host_addr.SetRawHostAddress(addrType, buffer+len, addrLen); host_addr.SetPort(hostPort); } len += addrLen; } else { // Not enough room packet_header_len = len; return true; } } else { // Not enough room packet_header_len = len; return true; } // GPS position information if ((len+13) <= bufferLen) { // latitude memcpy(&temp32, buffer+len, sizeof(long)); latitude = ((double)ntohl(temp32))/60000.0 - 180.0; len += sizeof(long); // longitude memcpy(&temp32, buffer+len, sizeof(long)); longitude = ((double)ntohl(temp32))/60000.0 - 180.0; len += sizeof(long); // altitude memcpy(&temp32, buffer+len, sizeof(long)); altitude = ntohl(temp32); len += sizeof(long); // status gps_status = (GPSStatus)buffer[len++]; } else { packet_header_len = len; return true; } // "reserved" field if (len < bufferLen) { reserved = buffer[len++]; } else { packet_header_len = len; return true; } // payload_len if ((len+sizeof(short)) <= bufferLen) { memcpy(&temp16, buffer+len, sizeof(short)); payload_len = ntohs(temp16); len += sizeof(short); if (0 != payload_len) payload = buffer + len; // Was the payload truncated? if (payload_len > (bufferLen - len)) { payload_len = bufferLen - len; len = bufferLen; } else { len += payload_len; } } else { packet_header_len = len; return true; } packet_header_len = len; return true; } // end MgenMsg::Unpack() UINT32 MgenMsg::ComputeCRC32(const unsigned char* buffer, UINT32 bufferLength) { UINT32 result = CRC32_XINIT; for (UINT32 i = 0; i < bufferLength; i++) result = CRC32_TABLE[(result ^ *buffer++) & 0xFFL] ^ (result >> 8); // return XOR out value return (result ^ CRC32_XOROT); } // end MgenMsg::ComputeCRC() const UINT32 MgenMsg::CRC32_XINIT = 0xFFFFFFFFL; // initial value const UINT32 MgenMsg::CRC32_XOROT = 0xFFFFFFFFL; // final xor value /*****************************************************************/ /* */ /* CRC LOOKUP TABLE */ /* ================ */ /* The following CRC lookup table was generated automagically */ /* by the Rocksoft^tm Model CRC Algorithm Table Generation */ /* Program V1.0 using the following model parameters: */ /* */ /* Width : 4 bytes. */ /* Poly : 0x04C11DB7L */ /* Reverse : TRUE. */ /* */ /* For more information on the Rocksoft^tm Model CRC Algorithm, */ /* see the document titled "A Painless Guide to CRC Error */ /* Detection Algorithms" by Ross Williams */ /* (ross@guest.adelaide.edu.au.). This document is likely to be */ /* in the FTP archive "ftp.adelaide.edu.au/pub/rocksoft". */ /* */ /*****************************************************************/ const UINT32 MgenMsg::CRC32_TABLE[256] = { 0x00000000L, 0x77073096L, 0xEE0E612CL, 0x990951BAL, 0x076DC419L, 0x706AF48FL, 0xE963A535L, 0x9E6495A3L, 0x0EDB8832L, 0x79DCB8A4L, 0xE0D5E91EL, 0x97D2D988L, 0x09B64C2BL, 0x7EB17CBDL, 0xE7B82D07L, 0x90BF1D91L, 0x1DB71064L, 0x6AB020F2L, 0xF3B97148L, 0x84BE41DEL, 0x1ADAD47DL, 0x6DDDE4EBL, 0xF4D4B551L, 0x83D385C7L, 0x136C9856L, 0x646BA8C0L, 0xFD62F97AL, 0x8A65C9ECL, 0x14015C4FL, 0x63066CD9L, 0xFA0F3D63L, 0x8D080DF5L, 0x3B6E20C8L, 0x4C69105EL, 0xD56041E4L, 0xA2677172L, 0x3C03E4D1L, 0x4B04D447L, 0xD20D85FDL, 0xA50AB56BL, 0x35B5A8FAL, 0x42B2986CL, 0xDBBBC9D6L, 0xACBCF940L, 0x32D86CE3L, 0x45DF5C75L, 0xDCD60DCFL, 0xABD13D59L, 0x26D930ACL, 0x51DE003AL, 0xC8D75180L, 0xBFD06116L, 0x21B4F4B5L, 0x56B3C423L, 0xCFBA9599L, 0xB8BDA50FL, 0x2802B89EL, 0x5F058808L, 0xC60CD9B2L, 0xB10BE924L, 0x2F6F7C87L, 0x58684C11L, 0xC1611DABL, 0xB6662D3DL, 0x76DC4190L, 0x01DB7106L, 0x98D220BCL, 0xEFD5102AL, 0x71B18589L, 0x06B6B51FL, 0x9FBFE4A5L, 0xE8B8D433L, 0x7807C9A2L, 0x0F00F934L, 0x9609A88EL, 0xE10E9818L, 0x7F6A0DBBL, 0x086D3D2DL, 0x91646C97L, 0xE6635C01L, 0x6B6B51F4L, 0x1C6C6162L, 0x856530D8L, 0xF262004EL, 0x6C0695EDL, 0x1B01A57BL, 0x8208F4C1L, 0xF50FC457L, 0x65B0D9C6L, 0x12B7E950L, 0x8BBEB8EAL, 0xFCB9887CL, 0x62DD1DDFL, 0x15DA2D49L, 0x8CD37CF3L, 0xFBD44C65L, 0x4DB26158L, 0x3AB551CEL, 0xA3BC0074L, 0xD4BB30E2L, 0x4ADFA541L, 0x3DD895D7L, 0xA4D1C46DL, 0xD3D6F4FBL, 0x4369E96AL, 0x346ED9FCL, 0xAD678846L, 0xDA60B8D0L, 0x44042D73L, 0x33031DE5L, 0xAA0A4C5FL, 0xDD0D7CC9L, 0x5005713CL, 0x270241AAL, 0xBE0B1010L, 0xC90C2086L, 0x5768B525L, 0x206F85B3L, 0xB966D409L, 0xCE61E49FL, 0x5EDEF90EL, 0x29D9C998L, 0xB0D09822L, 0xC7D7A8B4L, 0x59B33D17L, 0x2EB40D81L, 0xB7BD5C3BL, 0xC0BA6CADL, 0xEDB88320L, 0x9ABFB3B6L, 0x03B6E20CL, 0x74B1D29AL, 0xEAD54739L, 0x9DD277AFL, 0x04DB2615L, 0x73DC1683L, 0xE3630B12L, 0x94643B84L, 0x0D6D6A3EL, 0x7A6A5AA8L, 0xE40ECF0BL, 0x9309FF9DL, 0x0A00AE27L, 0x7D079EB1L, 0xF00F9344L, 0x8708A3D2L, 0x1E01F268L, 0x6906C2FEL, 0xF762575DL, 0x806567CBL, 0x196C3671L, 0x6E6B06E7L, 0xFED41B76L, 0x89D32BE0L, 0x10DA7A5AL, 0x67DD4ACCL, 0xF9B9DF6FL, 0x8EBEEFF9L, 0x17B7BE43L, 0x60B08ED5L, 0xD6D6A3E8L, 0xA1D1937EL, 0x38D8C2C4L, 0x4FDFF252L, 0xD1BB67F1L, 0xA6BC5767L, 0x3FB506DDL, 0x48B2364BL, 0xD80D2BDAL, 0xAF0A1B4CL, 0x36034AF6L, 0x41047A60L, 0xDF60EFC3L, 0xA867DF55L, 0x316E8EEFL, 0x4669BE79L, 0xCB61B38CL, 0xBC66831AL, 0x256FD2A0L, 0x5268E236L, 0xCC0C7795L, 0xBB0B4703L, 0x220216B9L, 0x5505262FL, 0xC5BA3BBEL, 0xB2BD0B28L, 0x2BB45A92L, 0x5CB36A04L, 0xC2D7FFA7L, 0xB5D0CF31L, 0x2CD99E8BL, 0x5BDEAE1DL, 0x9B64C2B0L, 0xEC63F226L, 0x756AA39CL, 0x026D930AL, 0x9C0906A9L, 0xEB0E363FL, 0x72076785L, 0x05005713L, 0x95BF4A82L, 0xE2B87A14L, 0x7BB12BAEL, 0x0CB61B38L, 0x92D28E9BL, 0xE5D5BE0DL, 0x7CDCEFB7L, 0x0BDBDF21L, 0x86D3D2D4L, 0xF1D4E242L, 0x68DDB3F8L, 0x1FDA836EL, 0x81BE16CDL, 0xF6B9265BL, 0x6FB077E1L, 0x18B74777L, 0x88085AE6L, 0xFF0F6A70L, 0x66063BCAL, 0x11010B5CL, 0x8F659EFFL, 0xF862AE69L, 0x616BFFD3L, 0x166CCF45L, 0xA00AE278L, 0xD70DD2EEL, 0x4E048354L, 0x3903B3C2L, 0xA7672661L, 0xD06016F7L, 0x4969474DL, 0x3E6E77DBL, 0xAED16A4AL, 0xD9D65ADCL, 0x40DF0B66L, 0x37D83BF0L, 0xA9BCAE53L, 0xDEBB9EC5L, 0x47B2CF7FL, 0x30B5FFE9L, 0xBDBDF21CL, 0xCABAC28AL, 0x53B39330L, 0x24B4A3A6L, 0xBAD03605L, 0xCDD70693L, 0x54DE5729L, 0x23D967BFL, 0xB3667A2EL, 0xC4614AB8L, 0x5D681B02L, 0x2A6F2B94L, 0xB40BBE37L, 0xC30C8EA1L, 0x5A05DF1BL, 0x2D02EF8DL }; // end MgenMsg::CRC32_TABLE bool MgenMsg::LogRecvError(FILE* logFile, const struct timeval& theTime, const ProtoAddress& srcAddr, bool logBinary, MgenMsg::Error errorType, bool flush) { if (logBinary) { char header[128]; unsigned int index = 0; // set "eventType" header[index++] = (char)Mgen::RERR_EVENT; // zero "reserved" field header[index++] = '\0'; // set "recordLength" (Note we don't save payload for SEND events) unsigned short recordLength = 12 + srcAddr.GetLength() + sizeof(long); unsigned short temp16 = htons(recordLength); memcpy(header+index, &temp16, sizeof(short)); index += sizeof(short); // set "eventTime" fields unsigned long temp32 = htonl(theTime.tv_sec); memcpy(header+index, &temp32, sizeof(long)); index += sizeof(long); temp32 = htonl(theTime.tv_usec); memcpy(header+index, &temp32, sizeof(long)); index += sizeof(long); // set "srcPort" temp16 = htons(srcAddr.GetPort()); memcpy(header+index, &temp16, sizeof(short)); index += sizeof(short); // set "srcAddrType" switch(srcAddr.GetType()) { case ProtoAddress::IPv4: header[index++] = IPv4; break; case ProtoAddress::IPv6: header[index++] = IPv6; break; default: DMSG(0, "MgenMsg::LogRecvEvent() unknown srcAddr type\n"); header[index++] = INVALID_ADDRESS; break; } // set "srcAddrLen" unsigned int addrLen = srcAddr.GetLength(); header[index++] = (char)addrLen; // set "srcAddr" memcpy(header+index, srcAddr.GetRawHostAddress(), addrLen); index += addrLen; // set "errorCode" long errorCode = (long)errorType; errorCode = ntohl(errorCode); memcpy(header+index, &errorCode, sizeof(long)); index += sizeof(long); // write record if (fwrite(header, sizeof(char), index, logFile) < index) { DMSG(0, "MgenMsg::LogRecvEvent() fwrite() error: %s\n", GetErrorString()); return false; } } else { const char* errorString = NULL; switch (errorType) { case ERROR_NONE: errorString = "none"; break; case ERROR_VERSION: errorString = "version"; break; case ERROR_CHECKSUM: errorString = "checksum"; break; case ERROR_LENGTH: errorString = "length"; break; case ERROR_DSTADDR: errorString = "dstAddr"; break; } #ifdef _WIN32_WCE struct tm timeStruct; timeStruct.tm_hour = theTime.tv_sec / 3600; unsigned long hourSecs = 3600 * timeStruct.tm_hour; timeStruct.tm_min = (theTime.tv_sec - hourSecs) / 60; timeStruct.tm_sec = theTime.tv_sec - hourSecs - (60*timeStruct.tm_min); timeStruct.tm_hour = timeStruct.tm_hour % 24; struct tm* timePtr = &timeStruct; #else struct tm* timePtr = gmtime((time_t*)&theTime.tv_sec); #endif // if/else _WIN32_WCE Mgen::Log(logFile, "%02d:%02d:%02d.%06lu RERR type>%s src>%s/%hu\n", timePtr->tm_hour, timePtr->tm_min, timePtr->tm_sec, (unsigned long)theTime.tv_usec, errorString, srcAddr.GetHostString(), srcAddr.GetPort()); } if (flush) fflush(logFile); return true; } // end MgenMsg::LogRecvError() bool MgenMsg::LogRecvEvent(FILE* logFile, const struct timeval& theTime, const ProtoAddress& srcAddr, bool logBinary, char* msgBuffer, bool flush) { if (logBinary) { char header[128]; unsigned int index = 0; // set "eventType" header[index++] = (char)Mgen::RECV_EVENT; // zero "reserved" field header[index++] = '\0'; // set "recordLength" (Note we don't save payload for SEND events) unsigned short recordLength = 12 + srcAddr.GetLength() + packet_header_len + payload_len; unsigned short temp16 = htons(recordLength); memcpy(header+index, &temp16, sizeof(short)); index += sizeof(short); // set "eventTime" fields unsigned long temp32 = htonl(theTime.tv_sec); memcpy(header+index, &temp32, sizeof(long)); index += sizeof(long); temp32 = htonl(theTime.tv_usec); memcpy(header+index, &temp32, sizeof(long)); index += sizeof(long); // set "srcPort" temp16 = htons(srcAddr.GetPort()); memcpy(header+index, &temp16, sizeof(short)); index += sizeof(short); // set "srcAddrType" switch(srcAddr.GetType()) { case ProtoAddress::IPv4: header[index++] = IPv4; break; case ProtoAddress::IPv6: header[index++] = IPv6; break; default: DMSG(0, "MgenMsg::LogRecvEvent() unknown srcAddr type\n"); header[index++] = INVALID_ADDRESS; break; } // set "srcAddrLen" unsigned int addrLen = srcAddr.GetLength(); header[index++] = (char)addrLen; // set "srcAddr" memcpy(header+index, srcAddr.GetRawHostAddress(), addrLen); index += addrLen; // write record header if (fwrite(header, sizeof(char), index, logFile) < index) { DMSG(0, "MgenMsg::LogRecvEvent() fwrite() error: %s\n", GetErrorString()); return false; } // write message content as remainder of record unsigned short msgLength = recordLength - index + 4; // Clear CHECKSUM flag for binary logging msgBuffer[FLAGS_OFFSET] &= ~CHECKSUM; if (fwrite(msgBuffer, sizeof(char), msgLength, logFile) < msgLength) { DMSG(0, "MgenMsg::LogRecvEvent() fwrite() error: %s\n", GetErrorString()); return false; } } else { #ifdef _WIN32_WCE struct tm timeStruct; timeStruct.tm_hour = theTime.tv_sec / 3600; unsigned long hourSecs = 3600 * timeStruct.tm_hour; timeStruct.tm_min = (theTime.tv_sec - hourSecs) / 60; timeStruct.tm_sec = theTime.tv_sec - hourSecs - (60*timeStruct.tm_min); timeStruct.tm_hour = timeStruct.tm_hour % 24; struct tm* timePtr = &timeStruct; #else struct tm* timePtr = gmtime((time_t*)&theTime.tv_sec); #endif // if/else _WIN32_WCE Mgen::Log(logFile, "%02d:%02d:%02d.%06lu RECV flow>%lu seq>%lu src>%s/%hu ", timePtr->tm_hour, timePtr->tm_min, timePtr->tm_sec, (unsigned long)theTime.tv_usec, flow_id, seq_num, srcAddr.GetHostString(), srcAddr.GetPort()); #ifdef _WIN32_WCE timeStruct.tm_hour = tx_time.tv_sec / 3600; hourSecs = 3600 * timeStruct.tm_hour; timeStruct.tm_min = (tx_time.tv_sec - hourSecs) / 60; timeStruct.tm_sec = tx_time.tv_sec - hourSecs - (60*timeStruct.tm_min); timeStruct.tm_hour = timeStruct.tm_hour % 24; timePtr = &timeStruct; #else timePtr = gmtime((time_t*)&tx_time.tv_sec); #endif // if/else _WIN32_WCE Mgen::Log(logFile, "dst>%s/%hu sent>%02d:%02d:%02d.%06lu size>%u ", dst_addr.GetHostString(), dst_addr.GetPort(), timePtr->tm_hour, timePtr->tm_min, timePtr->tm_sec, (unsigned long)tx_time.tv_usec, msg_len); if (host_addr.IsValid()) { Mgen::Log(logFile, "host>%s/%hu ", host_addr.GetHostString(), host_addr.GetPort()); } // (TBD) only output GPS info if INVALID_GPS != gps_status const char* statusString = NULL; switch (gps_status) { case INVALID_GPS: statusString = "INVALID"; break; case STALE: statusString = "STALE"; break; case CURRENT: statusString = "CURRENT"; break; default: DMSG(0, "MgenMsg::LogRecvEvent() invalid GPS status\n"); Mgen::Log(logFile, "\n"); return false; } Mgen::Log(logFile, "gps>%s,%f,%f,%ld ", statusString, latitude, longitude, altitude); if (payload_len) { Mgen::Log(logFile, "data>%hu:", payload_len); for (unsigned int i = 0; i < payload_len; i++) Mgen::Log(logFile, "%02x", (unsigned char)payload[i]); } Mgen::Log(logFile, "\n"); } if (flush) fflush(logFile); return true; } // end MgenMsg::LogRecvEvent() bool MgenMsg::LogSendEvent(FILE* logFile, bool logBinary, char* msgBuffer, bool flush) { if (logBinary) { char header[4]; // set "eventType" header[0] = (char)Mgen::SEND_EVENT; // zero "reserved" field header[1] = '\0'; // set "recordLength" // Note we don't save option payload for SEND event logging unsigned short temp16 = htons(packet_header_len); memcpy(header+2, &temp16, sizeof(short)); // write header if (fwrite(header, sizeof(char), 4, logFile) < 4) { DMSG(0, "MgenMsg::LogSendEvent() fwrite() error: %s\n", GetErrorString()); return false; } // write message content ASSERT(msgBuffer); if (fwrite(msgBuffer, sizeof(char), packet_header_len, logFile) < packet_header_len) { DMSG(0, "MgenMsg::LogSendEvent() fwrite() error: %s\n", GetErrorString()); return false; } } else { #ifdef _WIN32_WCE struct tm timeStruct; timeStruct.tm_hour = tx_time.tv_sec / 3600; unsigned long hourSecs = 3600 * timeStruct.tm_hour; timeStruct.tm_min = (tx_time.tv_sec - hourSecs) / 60; timeStruct.tm_sec = tx_time.tv_sec - hourSecs - (60*timeStruct.tm_min); timeStruct.tm_hour = timeStruct.tm_hour % 24; struct tm* timePtr = &timeStruct; #else struct tm* timePtr = gmtime((time_t*)&tx_time.tv_sec); #endif // if/else _WIN32_WCE Mgen::Log(logFile, "%02d:%02d:%02d.%06lu SEND flow>%lu seq>%lu dst>%s/%hu size>%u", timePtr->tm_hour, timePtr->tm_min, timePtr->tm_sec, (unsigned long)tx_time.tv_usec, flow_id, seq_num, dst_addr.GetHostString(), dst_addr.GetPort(), msg_len); if (host_addr.IsValid()) { Mgen::Log(logFile, " host>%s/%hu\n", host_addr.GetHostString(), host_addr.GetPort()); } else { Mgen::Log(logFile, "\n"); } } if (flush) fflush(logFile); return true; } // end MgenMsg::LogSendEvent()