X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/45dda9fcd7d47018c81a86688e2aaa63ba09d018..55eaed8f2ad26b9db249e2259c13444c38906795:/client/cmdlfem4x.c?ds=inline diff --git a/client/cmdlfem4x.c b/client/cmdlfem4x.c index 83f49db7..f6f103bf 100644 --- a/client/cmdlfem4x.c +++ b/client/cmdlfem4x.c @@ -11,9 +11,9 @@ #include <stdio.h> #include <string.h> #include <inttypes.h> -//#include "proxusb.h" #include "proxmark3.h" #include "ui.h" +#include "util.h" #include "graph.h" #include "cmdparser.h" #include "cmddata.h" @@ -22,20 +22,16 @@ static int CmdHelp(const char *Cmd); - - int CmdEMdemodASK(const char *Cmd) { - int findone=0; + char cmdp = param_getchar(Cmd, 0); + int findone = (cmdp == '1') ? 1 : 0; UsbCommand c={CMD_EM410X_DEMOD}; - if(Cmd[0]=='1') findone=1; c.arg[0]=findone; SendCommand(&c); return 0; } - - /* Read the ID of an EM410x tag. * Format: * 1111 1111 1 <-- standard non-repeatable header @@ -48,8 +44,8 @@ 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]; + char id[11] = {0x00}; + char id2[11] = {0x00}; int retested = 0; uint8_t BitStream[MAX_GRAPH_TRACE_LEN]; high = low = 0; @@ -201,7 +197,25 @@ retest: */ int CmdEM410xSim(const char *Cmd) { - int i, n, j, h, binary[4], parity[4]; + int i, n, j, binary[4], parity[4]; + + char cmdp = param_getchar(Cmd, 0); + uint8_t uid[5] = {0x00}; + + if (cmdp == 'h' || cmdp == 'H') { + PrintAndLog("Usage: lf em4x 410xsim <UID>"); + PrintAndLog(""); + PrintAndLog(" sample: lf em4x 410xsim 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; @@ -209,9 +223,6 @@ int CmdEM410xSim(const char *Cmd) /* clear our graph */ ClearGraph(0); - /* write it out a few times */ - for (h = 0; h < 4; h++) - { /* write 9 start bits */ for (i = 0; i < 9; i++) AppendGraph(0, clock, 1); @@ -248,38 +259,38 @@ int CmdEM410xSim(const char *Cmd) AppendGraph(0, clock, parity[3]); /* stop bit */ - AppendGraph(0, clock, 0); - } - - /* modulate that biatch */ - CmdManchesterMod(""); - - /* booyah! */ - RepaintGraphWindow(); - - CmdLFSim(""); + AppendGraph(1, clock, 0); + + CmdLFSim("240"); //240 start_gap. 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 - CmdSamples("16000"); - } while ( ! CmdEM410xRead("")); - return 0; + char cmdp = param_getchar(Cmd, 0); + int read_h = (cmdp == 'h'); + do { + if (ukbhit()) { + printf("\naborted via keyboard!\n"); + break; + } + + CmdLFRead(read_h ? "h" : ""); + CmdSamples("6000"); + } while ( + !CmdEM410xRead("") + ); + return 0; } /* Read the transmitted data of an EM4x50 tag @@ -595,7 +606,7 @@ int CmdWriteWordPWD(const char *Cmd) static command_t CommandTable[] = { {"help", CmdHelp, 1, "This help"}, - {"em410xdemod", CmdEMdemodASK, 0, "[clock rate] -- Extract ID from EM410x tag"}, + {"em410xdemod", CmdEMdemodASK, 0, "[findone] -- Extract ID from EM410x tag (option 0 for continuous loop, 1 for only 1 tag)"}, {"em410xread", CmdEM410xRead, 1, "[clock rate] -- Extract ID from EM410x tag"}, {"em410xsim", CmdEM410xSim, 0, "<UID> -- Simulate EM410x tag"}, {"em410xwatch", CmdEM410xWatch, 0, "['h'] -- Watches for EM410x 125/134 kHz tags (option 'h' for 134)"},