X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/125a98a1102cc27cefeba77f6d37542c1c475c52..8c6b22980cac809f51cdb307a2043b380659fe9c:/client/cmdhflegic.c diff --git a/client/cmdhflegic.c b/client/cmdhflegic.c index 2719029a..7ee601b2 100644 --- a/client/cmdhflegic.c +++ b/client/cmdhflegic.c @@ -10,14 +10,13 @@ #include <stdio.h> #include <string.h> -//#include "proxusb.h" #include "proxmark3.h" #include "data.h" #include "ui.h" #include "cmdparser.h" #include "cmdhflegic.h" #include "cmdmain.h" - +#include "util.h" static int CmdHelp(const char *Cmd); static command_t CommandTable[] = @@ -52,35 +51,20 @@ int CmdHelp(const char *Cmd) */ int CmdLegicDecode(const char *Cmd) { - int h, i, j, k, n; + int i, j, k, n; int segment_len = 0; int segment_flag = 0; int stamp_len = 0; int crc = 0; int wrp = 0; int wrc = 0; - int data_buf[1032]; // receiver buffer + uint8_t data_buf[1024]; // receiver buffer char out_string[3076]; // just use big buffer - bad practice char token_type[4]; - int delivered = 0; - - h = 0; // copy data from proxmark into buffer - for (i = 0; i < 256; i += 12, h += 48) { - UsbCommand c = {CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K, {i, 0, 0}}; - SendCommand(&c); - WaitForResponse(CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K, NULL); - - for (j = 0; j < 48; j += 8) { - for (k = 0; k < 8; k++) { - data_buf[h+j+k] = sample_buf[j+k]; - } - delivered += 8; - if (delivered >= 1024) - break; - } - } + GetFromBigBuf(data_buf,sizeof(data_buf),0); + WaitForResponse(CMD_ACK,NULL); // Output CDF System area (9 bytes) plus remaining header area (12 bytes) @@ -234,7 +218,24 @@ int CmdLegicRFRead(const char *Cmd) int CmdLegicLoad(const char *Cmd) { - FILE *f = fopen(Cmd, "r"); + char filename[FILE_PATH_SIZE] = {0x00}; + int len = 0; + + if (param_getchar(Cmd, 0) == 'h' || param_getchar(Cmd, 0)== 0x00) { + PrintAndLog("It loads datasamples from the file `filename`"); + PrintAndLog("Usage: hf legic load <file name>"); + PrintAndLog(" sample: hf legic load filename"); + return 0; + } + + len = strlen(Cmd); + if (len > FILE_PATH_SIZE) { + PrintAndLog("Filepath too long (was %s bytes), max allowed is %s ", len, FILE_PATH_SIZE); + return 0; + } + memcpy(filename, Cmd, len); + + FILE *f = fopen(filename, "r"); if(!f) { PrintAndLog("couldn't open '%s'", Cmd); return -1; @@ -264,51 +265,49 @@ int CmdLegicLoad(const char *Cmd) int CmdLegicSave(const char *Cmd) { - int n; int requested = 1024; int offset = 0; - char filename[1024]; - sscanf(Cmd, " %s %i %i", filename, &requested, &offset); - if (offset % 4 != 0) { - PrintAndLog("Offset must be a multiple of 4"); - return 0; - } - offset = offset/4; - int delivered = 0; + char filename[FILE_PATH_SIZE]; + uint8_t got[1024]; + + sscanf(Cmd, " %s %i %i", filename, &requested, &offset); + /* If no length given save entire legic read buffer */ + /* round up to nearest 8 bytes so the saved data can be used with legicload */ if (requested == 0) { - n = 12; - requested = 12; - } else { - n = requested/4; + requested = 1024; } - + if (requested % 8 != 0) { + int remainder = requested % 8; + requested = requested + 8 - remainder; + } + if (offset + requested > sizeof(got)) { + PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > 1024"); + return 0; + } + FILE *f = fopen(filename, "w"); if(!f) { PrintAndLog("couldn't open '%s'", Cmd+1); return -1; } - for (int i = offset; i < n+offset; i += 12) { - UsbCommand c = {CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K, {i, 0, 0}}; - SendCommand(&c); - WaitForResponse(CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K, NULL); - for (int j = 0; j < 48; j += 8) { - fprintf(f, "%02x %02x %02x %02x %02x %02x %02x %02x\n", - sample_buf[j+0], - sample_buf[j+1], - sample_buf[j+2], - sample_buf[j+3], - sample_buf[j+4], - sample_buf[j+5], - sample_buf[j+6], - sample_buf[j+7] - ); - delivered += 8; - if (delivered >= requested) - break; - } + GetFromBigBuf(got,requested,offset); + WaitForResponse(CMD_ACK,NULL); + + for (int j = 0; j < requested; j += 8) { + fprintf(f, "%02x %02x %02x %02x %02x %02x %02x %02x\n", + got[j+0], + got[j+1], + got[j+2], + got[j+3], + got[j+4], + got[j+5], + got[j+6], + got[j+7] + ); + delivered += 8; if (delivered >= requested) break; } @@ -324,7 +323,7 @@ int CmdLegicRfSim(const char *Cmd) c.arg[0] = 6; c.arg[1] = 3; c.arg[2] = 0; - sscanf(Cmd, " %lli %lli %lli", &c.arg[0], &c.arg[1], &c.arg[2]); + sscanf(Cmd, " %"lli" %"lli" %"lli, &c.arg[0], &c.arg[1], &c.arg[2]); SendCommand(&c); return 0; } @@ -344,7 +343,7 @@ int CmdLegicRfWrite(const char *Cmd) int CmdLegicRfFill(const char *Cmd) { UsbCommand cmd ={CMD_WRITER_LEGIC_RF}; - int res = sscanf(Cmd, " 0x%llx 0x%llx 0x%llx", &cmd.arg[0], &cmd.arg[1], &cmd.arg[2]); + int res = sscanf(Cmd, " 0x%"llx" 0x%"llx" 0x%"llx, &cmd.arg[0], &cmd.arg[1], &cmd.arg[2]); if(res != 3) { PrintAndLog("Please specify the offset, length and value as two hex strings"); return -1;