X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/54a942b05dd2a601b85e9851a5799929cbdffd5f..76c7e6c36368c3fc23dc4fab1fe5852023c78fac:/client/cmdlfem4x.c diff --git a/client/cmdlfem4x.c b/client/cmdlfem4x.c index f823750b..be31e1ea 100644 --- a/client/cmdlfem4x.c +++ b/client/cmdlfem4x.c @@ -11,14 +11,18 @@ #include #include #include -//#include "proxusb.h" #include "proxmark3.h" #include "ui.h" #include "graph.h" +#include "cmdmain.h" #include "cmdparser.h" #include "cmddata.h" #include "cmdlf.h" #include "cmdlfem4x.h" +#include "util.h" +#include "data.h" + +char *global_em410xId; static int CmdHelp(const char *Cmd); @@ -35,6 +39,7 @@ int CmdEM410xRead(const char *Cmd) int i, j, clock, header, rows, bit, hithigh, hitlow, first, bit2idx, high, low; int parity[4]; char id[11]; + char id2[11]; int retested = 0; uint8_t BitStream[MAX_GRAPH_TRACE_LEN]; high = low = 0; @@ -101,6 +106,7 @@ retest: { /* Read another byte! */ sprintf(id+rows, "%x", (8 * BitStream[i]) + (4 * BitStream[i+1]) + (2 * BitStream[i+2]) + (1 * BitStream[i+3])); + sprintf(id2+rows, "%x", (8 * BitStream[i+3]) + (4 * BitStream[i+2]) + (2 * BitStream[i+1]) + (1 * BitStream[i])); rows++; /* Keep parity info */ @@ -135,7 +141,10 @@ retest: { /* Sweet! */ PrintAndLog("EM410x Tag ID: %s", id); + PrintAndLog("Unique Tag ID: %s", id2); + global_em410xId = id; + /* Stop any loops */ return 1; } @@ -164,8 +173,9 @@ retest: } /* if we've already retested after flipping bits, return */ - if (retested++) + if (retested++){ return 0; + } /* if this didn't work, try flipping bits */ for (i = 0; i < bit2idx; i++) @@ -248,11 +258,36 @@ int CmdEM410xSim(const char *Cmd) * looped until an EM410x tag is detected */ int CmdEM410xWatch(const char *Cmd) { + int read_h = (*Cmd == 'h'); + //char k; + do + { + CmdLFRead(read_h ? "h" : ""); + // 2000 samples is OK for clock=64, but not clock=32. Probably want + // 8000 for clock=16. Don't want to go too high since old HID driver + // is very slow + // TBD: Auto-grow sample size based on detected sample rate. IE: If the + // rate gets lower, then grow the number of samples + + // Changed by martin, 4000 x 4 = 16000, + // see http://www.proxmark.org/forum/viewtopic.php?pid=7235#p7235 + CmdSamples("16000"); + } while ( + !CmdEM410xRead("") + ); + return 0; +} + +int CmdEM410xWatchnSpoof(const char *Cmd) +{ + int read_h = (*Cmd == 'h'); do { - CmdLFRead(""); - CmdSamples("2000"); - } while ( ! CmdEM410xRead("")); + CmdLFRead(read_h ? "h" : ""); + CmdSamples("16000"); + } while ( ! CmdEM410xRead("")); + PrintAndLog("# Replaying : %s",global_em410xId); + CmdEM410xSim(global_em410xId); return 0; } @@ -402,22 +437,66 @@ int CmdEM4x50Read(const char *Cmd) int CmdEM410xWrite(const char *Cmd) { - uint64_t id = 0; - unsigned int card; - - sscanf(Cmd, "%" PRIx64 " %d", &id, &card); - - if (id >= 0x10000000000) { - PrintAndLog("Error! Given EM410x ID is longer than 40 bits.\n"); - return 0; - } - - if (card > 1) { - PrintAndLog("Error! Bad card type selected.\n"); - return 0; - } + uint64_t id = 0xFFFFFFFFFFFFFFFF; // invalid id value + int card = 0xFF; // invalid card value + unsigned int clock = 0; // invalid clock value + + sscanf(Cmd, "%" PRIx64 " %d %d", &id, &card, &clock); + + // Check ID + if (id == 0xFFFFFFFFFFFFFFFF) { + PrintAndLog("Error! ID is required.\n"); + return 0; + } + if (id >= 0x10000000000) { + PrintAndLog("Error! Given EM410x ID is longer than 40 bits.\n"); + return 0; + } + + // Check Card + if (card == 0xFF) { + PrintAndLog("Error! Card type required.\n"); + return 0; + } + if (card < 0) { + PrintAndLog("Error! Bad card type selected.\n"); + return 0; + } + + // Check Clock + if (card == 1) + { + // Default: 64 + if (clock == 0) + clock = 64; + + // Allowed clock rates: 16, 32 and 64 + if ((clock != 16) && (clock != 32) && (clock != 64)) { + PrintAndLog("Error! Clock rate %d not valid. Supported clock rates are 16, 32 and 64.\n", clock); + return 0; + } + } + else if (clock != 0) + { + PrintAndLog("Error! Clock rate is only supported on T55x7 tags.\n"); + return 0; + } + + if (card == 1) { + PrintAndLog("Writing %s tag with UID 0x%010" PRIx64 " (clock rate: %d)", "T55x7", id, clock); + // NOTE: We really should pass the clock in as a separate argument, but to + // provide for backwards-compatibility for older firmware, and to avoid + // having to add another argument to CMD_EM410X_WRITE_TAG, we just store + // the clock rate in bits 8-15 of the card value + card = (card & 0xFF) | (((uint64_t)clock << 8) & 0xFF00); + } + else if (card == 0) + PrintAndLog("Writing %s tag with UID 0x%010" PRIx64, "T5555", id, clock); + else { + PrintAndLog("Error! Bad card type selected.\n"); + return 0; + } - PrintAndLog("Writing %s tag with UID 0x%010" PRIx64, card ? "T55x7":"T5555", id); UsbCommand c = {CMD_EM410X_WRITE_TAG, {card, (uint32_t)(id >> 32), (uint32_t)id}}; SendCommand(&c); @@ -426,12 +505,12 @@ int CmdEM410xWrite(const char *Cmd) int CmdReadWord(const char *Cmd) { - int Word = 16; //default to invalid word + int Word = -1; //default to invalid word UsbCommand c; sscanf(Cmd, "%d", &Word); - if (Word > 15) { + if ( (Word > 15) | (Word < 0) ) { PrintAndLog("Word must be between 0 and 15"); return 1; } @@ -444,18 +523,37 @@ int CmdReadWord(const char *Cmd) c.arg[1] = Word; c.arg[2] = 0; SendCommand(&c); + WaitForResponse(CMD_ACK, NULL); + + size_t bytelength = 4096; + uint8_t data[bytelength]; + memset(data, 0x00, bytelength); + + GetFromBigBuf(data,bytelength,3560); //3560 -- should be offset.. + WaitForResponseTimeout(CMD_ACK,NULL, 1500); + + for (int j = 0; j < bytelength; j++) { + GraphBuffer[j] = ((int)data[j]) - 128; + } + GraphTraceLen = bytelength; + RepaintGraphWindow(); + + manchester_decode(data, bytelength); + + free(data); + return 0; } int CmdReadWordPWD(const char *Cmd) { - int Word = 16; //default to invalid word + int Word = -1; //default to invalid word int Password = 0xFFFFFFFF; //default to blank password UsbCommand c; sscanf(Cmd, "%d %x", &Word, &Password); - if (Word > 15) { + if ( (Word > 15) | (Word < 0) ) { PrintAndLog("Word must be between 0 and 15"); return 1; } @@ -468,6 +566,24 @@ int CmdReadWordPWD(const char *Cmd) c.arg[1] = Word; c.arg[2] = Password; SendCommand(&c); + WaitForResponse(CMD_ACK, NULL); + + size_t bytelength = 4096; + uint8_t data[bytelength]; + memset(data, 0x00, bytelength); + + GetFromBigBuf(data,bytelength,3560); //3560 -- should be offset.. + WaitForResponseTimeout(CMD_ACK,NULL, 1500); + + for (int j = 0; j < bytelength; j++) { + GraphBuffer[j] = ((int)data[j]) - 128; + } + GraphTraceLen = bytelength; + RepaintGraphWindow(); + + manchester_decode(data, bytelength); + + free(data); return 0; } @@ -525,15 +641,16 @@ int CmdWriteWordPWD(const char *Cmd) static command_t CommandTable[] = { {"help", CmdHelp, 1, "This help"}, - {"em410xread", CmdEM410xRead, 1, "[clock rate] -- Extract ID from EM410x tag"}, - {"em410xsim", CmdEM410xSim, 0, " -- Simulate EM410x tag"}, - {"em410xwatch", CmdEM410xWatch, 0, "Watches for EM410x tags"}, - {"em410xwrite", CmdEM410xWrite, 1, " <'0' T5555> <'1' T55x7> -- Write EM410x UID to T5555(Q5) or T55x7 tag"}, - {"em4x50read", CmdEM4x50Read, 1, "Extract data from EM4x50 tag"}, - {"readword", CmdReadWord, 1, " -- Read EM4xxx word data"}, - {"readwordPWD", CmdReadWordPWD, 1, " -- Read EM4xxx word data in password mode"}, - {"writeword", CmdWriteWord, 1, " -- Write EM4xxx word data"}, - {"writewordPWD", CmdWriteWordPWD, 1, " -- Write EM4xxx word data in password mode"}, + {"410read", CmdEM410xRead, 1, "[clock rate] -- Extract ID from EM410x tag"}, + {"410sim", CmdEM410xSim, 0, " -- Simulate EM410x tag"}, + {"410watch", CmdEM410xWatch, 0, "['h'] -- Watches for EM410x 125/134 kHz tags (option 'h' for 134)"}, + {"410spoof", CmdEM410xWatchnSpoof, 0, "['h'] --- Watches for EM410x 125/134 kHz tags, and replays them. (option 'h' for 134)" }, + {"410write", CmdEM410xWrite, 1, " <'0' T5555> <'1' T55x7> [clock rate] -- Write EM410x UID to T5555(Q5) or T55x7 tag, optionally setting clock rate"}, + {"4xread", CmdEM4x50Read, 1, "Extract data from EM4x50 tag"}, + {"rd", CmdReadWord, 1, " -- Read EM4xxx word data"}, + {"rdpwd", CmdReadWordPWD, 1, " -- Read EM4xxx word data in password mode "}, + {"wr", CmdWriteWord, 1, " -- Write EM4xxx word data"}, + {"wrpwd", CmdWriteWordPWD, 1, " -- Write EM4xxx word data in password mode"}, {NULL, NULL, 0, NULL} };