X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/489e1745415038d3d315247f8cdad080c14eb95b..b216af9a24fb5691ec47e6e961e0a61a343a16d7:/client/cmdlfem4x.c diff --git a/client/cmdlfem4x.c b/client/cmdlfem4x.c index 125d8ab9..67013b2e 100644 --- a/client/cmdlfem4x.c +++ b/client/cmdlfem4x.c @@ -1,4 +1,4 @@ -//----------------------------------------------------------------------------- + //----------------------------------------------------------------------------- // Copyright (C) 2010 iZsh // // This code is licensed to you under the terms of the GNU GPL, version 2 or, @@ -11,14 +11,20 @@ #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" +#define LF_TRACE_BUFF_SIZE 12000 +#define LF_BITSSTREAM_LEN 1000 + +char *global_em410xId; static int CmdHelp(const char *Cmd); @@ -35,6 +41,7 @@ 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; @@ -50,7 +57,7 @@ int CmdEM410xRead(const char *Cmd) /* get clock */ clock = GetClock(Cmd, high, 0); - + /* parity for our 4 columns */ parity[0] = parity[1] = parity[2] = parity[3] = 0; header = rows = 0; @@ -91,7 +98,7 @@ int CmdEM410xRead(const char *Cmd) retest: /* We go till 5 before the graph ends because we'll get that far below */ - for (i = 1; i < bit2idx - 5; i++) + for (i = 0; i < bit2idx - 5; i++) { /* Step 2: We have our header but need our tag ID */ if (header == 9 && rows < 10) @@ -101,6 +108,7 @@ 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 */ @@ -119,7 +127,7 @@ retest: PrintAndLog("Thought we had a valid tag but failed at word %d (i=%d)", rows + 1, i); /* Start back rows * 5 + 9 header bits, -1 to not start at same place */ - i -= 9 + (5 * rows) - 5; + i -= 9 + (5 * rows) -2; rows = header = 0; } @@ -135,7 +143,10 @@ retest: { /* Sweet! */ PrintAndLog("EM410x Tag ID: %s", id); + PrintAndLog("Unique Tag ID: %s", id2); + global_em410xId = id; + /* Stop any loops */ return 1; } @@ -164,8 +175,9 @@ 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++) @@ -183,15 +195,33 @@ retest: * 0 <-- stop bit, end of tag */ int CmdEM410xSim(const char *Cmd) -{ - int i, n, j, h, binary[4], parity[4]; +{ + int i, n, j, h, binary[4], parity[4]; + + char cmdp = param_getchar(Cmd, 0); + uint8_t uid[5] = {0x00}; + if (cmdp == 'h' || cmdp == 'H') { + PrintAndLog("Usage: lf em4x sim "); + PrintAndLog(""); + PrintAndLog(" sample: lf em4x sim 0F0368568B"); + return 0; + } + + if (param_gethex(Cmd, 0, uid, 10)) { + PrintAndLog("UID must include 10 HEX symbols"); + return 0; + } + + PrintAndLog("Starting simulating UID %02X%02X%02X%02X%02X", uid[0],uid[1],uid[2],uid[3],uid[4]); + PrintAndLog("Press pm3-button to about simulation"); + /* clock is 64 in EM410x tags */ int clock = 64; /* clear our graph */ - ClearGraph(0); - + ClearGraph(1); + /* write it out a few times */ for (h = 0; h < 4; h++) { @@ -235,7 +265,7 @@ int CmdEM410xSim(const char *Cmd) } /* modulate that biatch */ - CmdManchesterMod(""); + CmdManchesterMod("64"); /* booyah! */ RepaintGraphWindow(); @@ -244,24 +274,40 @@ int CmdEM410xSim(const char *Cmd) return 0; } -/* Function is equivalent of loread + losamples + em410xread - * looped until an EM410x tag is detected */ +/* Function is equivalent of lf read + data samples + em410xread + * looped until an EM410x tag is detected + * + * Why is CmdSamples("16000")? + * 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 + +*/ int CmdEM410xWatch(const char *Cmd) { - int read_h = (*Cmd == 'h'); - 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 + int read_h = (*Cmd == 'h'); + do + { + if (ukbhit()) { + printf("\naborted via keyboard!\n"); + break; + } + + CmdLFRead(read_h ? "h" : ""); CmdSamples("16000"); - } while ( ! CmdEM410xRead("")); + + } while ( + !CmdEM410xRead("") + ); + return 0; +} + +int CmdEM410xWatchnSpoof(const char *Cmd) +{ + CmdEM410xWatch(Cmd); + PrintAndLog("# Replaying : %s",global_em410xId); + CmdEM410xSim(global_em410xId); return 0; } @@ -316,7 +362,7 @@ int CmdEM4x50Read(const char *Cmd) ++i; while ((GraphBuffer[i] > low) && (i(MAX_GRAPH_TRACE_LEN/64)) { + if (j>=(MAX_GRAPH_TRACE_LEN/64)) { break; } tmpbuff[j++]= i - start; @@ -412,7 +458,7 @@ int CmdEM4x50Read(const char *Cmd) int CmdEM410xWrite(const char *Cmd) { uint64_t id = 0xFFFFFFFFFFFFFFFF; // invalid id value - unsigned int card = 0xFF; // invalid card value + int card = 0xFF; // invalid card value unsigned int clock = 0; // invalid clock value sscanf(Cmd, "%" PRIx64 " %d %d", &id, &card, &clock); @@ -479,48 +525,80 @@ int CmdEM410xWrite(const char *Cmd) int CmdReadWord(const char *Cmd) { - int Word = 16; //default to invalid word - UsbCommand c; + int Word = -1; //default to invalid word + UsbCommand c; - sscanf(Cmd, "%d", &Word); + sscanf(Cmd, "%d", &Word); - if (Word > 15) { - PrintAndLog("Word must be between 0 and 15"); - return 1; - } + if ( (Word > 15) | (Word < 0) ) { + PrintAndLog("Word must be between 0 and 15"); + return 1; + } - PrintAndLog("Reading word %d", Word); + PrintAndLog("Reading word %d", Word); - c.cmd = CMD_EM4X_READ_WORD; - c.d.asBytes[0] = 0x0; //Normal mode - c.arg[0] = 0; - c.arg[1] = Word; - c.arg[2] = 0; - SendCommand(&c); + c.cmd = CMD_EM4X_READ_WORD; + c.d.asBytes[0] = 0x0; //Normal mode + c.arg[0] = 0; + c.arg[1] = Word; + c.arg[2] = 0; + SendCommand(&c); + WaitForResponse(CMD_ACK, NULL); + + uint8_t data[LF_TRACE_BUFF_SIZE] = {0x00}; + + GetFromBigBuf(data,LF_TRACE_BUFF_SIZE,3560); //3560 -- should be offset.. + WaitForResponseTimeout(CMD_ACK,NULL, 1500); + + for (int j = 0; j < LF_TRACE_BUFF_SIZE; j++) { + GraphBuffer[j] = ((int)data[j]); + } + GraphTraceLen = LF_TRACE_BUFF_SIZE; + + uint8_t bits[LF_BITSSTREAM_LEN] = {0x00}; + uint8_t * bitstream = bits; + manchester_decode(GraphBuffer, LF_TRACE_BUFF_SIZE, bitstream,LF_BITSSTREAM_LEN); + RepaintGraphWindow(); return 0; } int CmdReadWordPWD(const char *Cmd) { - int Word = 16; //default to invalid word - int Password = 0xFFFFFFFF; //default to blank password - UsbCommand c; - - sscanf(Cmd, "%d %x", &Word, &Password); - - if (Word > 15) { - PrintAndLog("Word must be between 0 and 15"); - return 1; - } - - PrintAndLog("Reading word %d with password %08X", Word, Password); + 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) | (Word < 0) ) { + PrintAndLog("Word must be between 0 and 15"); + return 1; + } - c.cmd = CMD_EM4X_READ_WORD; - c.d.asBytes[0] = 0x1; //Password mode - c.arg[0] = 0; - c.arg[1] = Word; - c.arg[2] = Password; - SendCommand(&c); + PrintAndLog("Reading word %d with password %08X", Word, Password); + + c.cmd = CMD_EM4X_READ_WORD; + c.d.asBytes[0] = 0x1; //Password mode + c.arg[0] = 0; + c.arg[1] = Word; + c.arg[2] = Password; + SendCommand(&c); + WaitForResponse(CMD_ACK, NULL); + + uint8_t data[LF_TRACE_BUFF_SIZE] = {0x00}; + + GetFromBigBuf(data,LF_TRACE_BUFF_SIZE,3560); //3560 -- should be offset.. + WaitForResponseTimeout(CMD_ACK,NULL, 1500); + + for (int j = 0; j < LF_TRACE_BUFF_SIZE; j++) { + GraphBuffer[j] = ((int)data[j]); + } + GraphTraceLen = LF_TRACE_BUFF_SIZE; + + uint8_t bits[LF_BITSSTREAM_LEN] = {0x00}; + uint8_t * bitstream = bits; + manchester_decode(GraphBuffer, LF_TRACE_BUFF_SIZE, bitstream, LF_BITSSTREAM_LEN); + RepaintGraphWindow(); return 0; } @@ -537,7 +615,7 @@ int CmdWriteWord(const char *Cmd) return 1; } - PrintAndLog("Writting word %d with data %08X", Word, Data); + PrintAndLog("Writing word %d with data %08X", Word, Data); c.cmd = CMD_EM4X_WRITE_WORD; c.d.asBytes[0] = 0x0; //Normal mode @@ -550,7 +628,7 @@ int CmdWriteWord(const char *Cmd) int CmdWriteWordPWD(const char *Cmd) { - int Word = 8; //default to invalid word + int Word = 16; //default to invalid word int Data = 0xFFFFFFFF; //default to blank data int Password = 0xFFFFFFFF; //default to blank password UsbCommand c; @@ -562,7 +640,7 @@ int CmdWriteWordPWD(const char *Cmd) return 1; } - PrintAndLog("Writting word %d with data %08X and password %08X", Word, Data, Password); + PrintAndLog("Writing word %d with data %08X and password %08X", Word, Data, Password); c.cmd = CMD_EM4X_WRITE_WORD; c.d.asBytes[0] = 0x1; //Password mode @@ -573,20 +651,19 @@ int CmdWriteWordPWD(const char *Cmd) return 0; } - - 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, "['h'] -- Watches for EM410x 125/134 kHz tags (option 'h' for 134)"}, - {"em410xwrite", CmdEM410xWrite, 1, " <'0' T5555> <'1' T55x7> [clock rate] -- Write EM410x UID to T5555(Q5) or T55x7 tag, optionally setting clock rate"}, - {"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"}, + {"410xread", CmdEM410xRead, 1, "[clock rate] -- Extract ID from EM410x tag"}, + {"410xsim", CmdEM410xSim, 0, " -- Simulate EM410x tag"}, + {"410xwatch", CmdEM410xWatch, 0, "['h'] -- Watches for EM410x 125/134 kHz tags (option 'h' for 134)"}, + {"410xspoof", CmdEM410xWatchnSpoof, 0, "['h'] --- Watches for EM410x 125/134 kHz tags, and replays them. (option 'h' for 134)" }, + {"410xwrite", CmdEM410xWrite, 1, " <'0' T5555> <'1' T55x7> [clock rate] -- Write EM410x UID to T5555(Q5) or T55x7 tag, optionally setting clock rate"}, + {"4x50read", 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} };