X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/25d3e5cc83570a84605b819d5b1dd53abfa64ce8..50564be0f809e61f3148fb2f27db035b6362321f:/client/cmdlf.c diff --git a/client/cmdlf.c b/client/cmdlf.c index dfbbe992..0f5d0dc0 100644 --- a/client/cmdlf.c +++ b/client/cmdlf.c @@ -7,125 +7,255 @@ //----------------------------------------------------------------------------- // Low frequency commands //----------------------------------------------------------------------------- - -#include -#include -#include -#include -#include "proxmark3.h" -#include "data.h" -#include "graph.h" -#include "ui.h" -#include "cmdparser.h" -#include "cmdmain.h" -#include "cmddata.h" -#include "util.h" #include "cmdlf.h" -#include "cmdlfhid.h" -#include "cmdlfti.h" -#include "cmdlfem4x.h" -#include "cmdlfhitag.h" -#include "cmdlft55xx.h" -#include "cmdlfpcf7931.h" -#include "cmdlfio.h" -#include "lfdemod.h" - static int CmdHelp(const char *Cmd); -/* send a command before reading */ +int usage_lf_cmdread(void) { + PrintAndLog("Usage: lf cmdread d z o c [H]"); + PrintAndLog("Options: "); + PrintAndLog(" h This help"); + PrintAndLog(" L Low frequency (125 KHz)"); + PrintAndLog(" H High frequency (134 KHz)"); + PrintAndLog(" d delay OFF period, (dec)"); + PrintAndLog(" z time period ZERO, (dec)"); + PrintAndLog(" o time period ONE, (dec)"); + PrintAndLog(" c Command bytes"); + PrintAndLog(" ************* All periods in microseconds (ms)"); + PrintAndLog("Examples:"); + PrintAndLog(" lf cmdread d 80 z 100 o 200 c 11000"); + PrintAndLog(" lf cmdread d 80 z 100 o 100 c 11000 H"); + return 0; +} +int usage_lf_read(void){ + PrintAndLog("Usage: lf read [h] [s]"); + PrintAndLog("Options: "); + PrintAndLog(" h This help"); + PrintAndLog(" s silent run no printout"); + PrintAndLog("This function takes no arguments. "); + PrintAndLog("Use 'lf config' to set parameters."); + return 0; +} +int usage_lf_snoop(void) { + PrintAndLog("Usage: lf snoop"); + PrintAndLog("Options: "); + PrintAndLog(" h This help"); + PrintAndLog("This function takes no arguments. "); + PrintAndLog("Use 'lf config' to set parameters."); + return 0; +} +int usage_lf_config(void) { + PrintAndLog("Usage: lf config [H|] [b ] [d ] [a 0|1]"); + PrintAndLog("Options: "); + PrintAndLog(" h This help"); + PrintAndLog(" L Low frequency (125 KHz)"); + PrintAndLog(" H High frequency (134 KHz)"); + PrintAndLog(" q Manually set divisor. 88-> 134KHz, 95-> 125 Hz"); + PrintAndLog(" b Sets resolution of bits per sample. Default (max): 8"); + PrintAndLog(" d Sets decimation. A value of N saves only 1 in N samples. Default: 1"); + PrintAndLog(" a [0|1] Averaging - if set, will average the stored sample value when decimating. Default: 1"); + PrintAndLog(" t Sets trigger threshold. 0 means no threshold (range: 0-128)"); + PrintAndLog("Examples:"); + PrintAndLog(" lf config b 8 L"); + PrintAndLog(" Samples at 125KHz, 8bps."); + PrintAndLog(" lf config H b 4 d 3"); + PrintAndLog(" Samples at 134KHz, averages three samples into one, stored with "); + PrintAndLog(" a resolution of 4 bits per sample."); + PrintAndLog(" lf read"); + PrintAndLog(" Performs a read (active field)"); + PrintAndLog(" lf snoop"); + PrintAndLog(" Performs a snoop (no active field)"); + return 0; +} +int usage_lf_simfsk(void) { + PrintAndLog("Usage: lf simfsk [c ] [i] [H ] [L ] [d ]"); + PrintAndLog("Options: "); + PrintAndLog(" h This help"); + PrintAndLog(" c Manually set clock - can autodetect if using DemodBuffer"); + PrintAndLog(" i invert data"); + PrintAndLog(" H Manually set the larger Field Clock"); + PrintAndLog(" L Manually set the smaller Field Clock"); + //PrintAndLog(" s TBD- -to enable a gap between playback repetitions - default: no gap"); + PrintAndLog(" d Data to sim as hex - omit to sim from DemodBuffer"); + PrintAndLog("\n NOTE: if you set one clock manually set them all manually"); + return 0; +} +int usage_lf_simask(void) { + PrintAndLog("Usage: lf simask [c ] [i] [b|m|r] [s] [d ]"); + PrintAndLog("Options: "); + PrintAndLog(" h This help"); + PrintAndLog(" c Manually set clock - can autodetect if using DemodBuffer"); + PrintAndLog(" i invert data"); + PrintAndLog(" b sim ask/biphase"); + PrintAndLog(" m sim ask/manchester - Default"); + PrintAndLog(" r sim ask/raw"); + PrintAndLog(" s TBD- -to enable a gap between playback repetitions - default: no gap"); + PrintAndLog(" d Data to sim as hex - omit to sim from DemodBuffer"); + return 0; +} +int usage_lf_simpsk(void) { + PrintAndLog("Usage: lf simpsk [1|2|3] [c ] [i] [r ] [d ]"); + PrintAndLog("Options: "); + PrintAndLog(" h This help"); + PrintAndLog(" c Manually set clock - can autodetect if using DemodBuffer"); + PrintAndLog(" i invert data"); + PrintAndLog(" 1 set PSK1 (default)"); + PrintAndLog(" 2 set PSK2"); + PrintAndLog(" 3 set PSK3"); + PrintAndLog(" r 2|4|8 are valid carriers: default = 2"); + PrintAndLog(" d Data to sim as hex - omit to sim from DemodBuffer"); + return 0; +} +int usage_lf_find(void){ + PrintAndLog("Usage: lf search <0|1> [u]"); + PrintAndLog(" , if not set, try reading data from tag."); + PrintAndLog(" [Search for Unknown tags] , if not set, reads only known tags."); + PrintAndLog(""); + PrintAndLog(" sample: lf search = try reading data from tag & search for known tags"); + PrintAndLog(" : lf search 1 = use data from GraphBuffer & search for known tags"); + PrintAndLog(" : lf search u = try reading data from tag & search for known and unknown tags"); + PrintAndLog(" : lf search 1 u = use data from GraphBuffer & search for known and unknown tags"); + return 0; +} + + +/* send a LF command before reading */ int CmdLFCommandRead(const char *Cmd) { - static char dummy[3]; + static char dummy[3] = {0x20,0x00,0x00}; + UsbCommand c = {CMD_MOD_THEN_ACQUIRE_RAW_ADC_SAMPLES_125K}; + bool errors = FALSE; - dummy[0]= ' '; + uint8_t cmdp = 0; + int strLength = 0; - UsbCommand c = {CMD_MOD_THEN_ACQUIRE_RAW_ADC_SAMPLES_125K}; - sscanf(Cmd, "%"lli" %"lli" %"lli" %s %s", &c.arg[0], &c.arg[1], &c.arg[2],(char*)(&c.d.asBytes),(char*)(&dummy+1)); - // in case they specified 'h' - strcpy((char *)&c.d.asBytes + strlen((char *)c.d.asBytes), dummy); + while(param_getchar(Cmd, cmdp) != 0x00) { + switch(param_getchar(Cmd, cmdp)) + { + case 'h': + return usage_lf_cmdread(); + case 'H': + dummy[1]='h'; + cmdp++; + break; + case 'L': + cmdp++; + break; + case 'c': + strLength = param_getstr(Cmd, cmdp+1, (char *)&c.d.asBytes); + cmdp+=2; + break; + case 'd': + c.arg[0] = param_get32ex(Cmd, cmdp+1, 0, 10); + cmdp+=2; + break; + case 'z': + c.arg[1] = param_get32ex(Cmd, cmdp+1, 0, 10); + cmdp+=2; + break; + case 'o': + c.arg[2] = param_get32ex(Cmd, cmdp+1, 0, 10); + cmdp+=2; + break; + default: + PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp)); + errors = 1; + break; + } + if(errors) break; + } + // No args + if (cmdp == 0) errors = 1; + + //Validations + if (errors) return usage_lf_cmdread(); + + // in case they specified 'H' + strcpy((char *)&c.d.asBytes + strLength, dummy); + + clearCommandBuffer(); SendCommand(&c); return 0; } int CmdFlexdemod(const char *Cmd) { - int i; - for (i = 0; i < GraphTraceLen; ++i) { - if (GraphBuffer[i] < 0) { - GraphBuffer[i] = -1; - } else { - GraphBuffer[i] = 1; - } - } + int i; + for (i = 0; i < GraphTraceLen; ++i) { + if (GraphBuffer[i] < 0) { + GraphBuffer[i] = -1; + } else { + GraphBuffer[i] = 1; + } + } #define LONG_WAIT 100 - int start; - for (start = 0; start < GraphTraceLen - LONG_WAIT; start++) { - int first = GraphBuffer[start]; - for (i = start; i < start + LONG_WAIT; i++) { - if (GraphBuffer[i] != first) { - break; - } - } - if (i == (start + LONG_WAIT)) { - break; - } - } - if (start == GraphTraceLen - LONG_WAIT) { - PrintAndLog("nothing to wait for"); - return 0; - } - - GraphBuffer[start] = 2; - GraphBuffer[start+1] = -2; + int start; + for (start = 0; start < GraphTraceLen - LONG_WAIT; start++) { + int first = GraphBuffer[start]; + for (i = start; i < start + LONG_WAIT; i++) { + if (GraphBuffer[i] != first) { + break; + } + } + if (i == (start + LONG_WAIT)) { + break; + } + } + if (start == GraphTraceLen - LONG_WAIT) { + PrintAndLog("nothing to wait for"); + return 0; + } + + GraphBuffer[start] = 2; + GraphBuffer[start+1] = -2; uint8_t bits[64] = {0x00}; int bit, sum; - i = start; - for (bit = 0; bit < 64; bit++) { + i = start; + for (bit = 0; bit < 64; bit++) { sum = 0; for (int j = 0; j < 16; j++) { - sum += GraphBuffer[i++]; - } + sum += GraphBuffer[i++]; + } bits[bit] = (sum > 0) ? 1 : 0; - PrintAndLog("bit %d sum %d", bit, sum); - } - - for (bit = 0; bit < 64; bit++) { - int j; - int sum = 0; - for (j = 0; j < 16; j++) { - sum += GraphBuffer[i++]; - } - if (sum > 0 && bits[bit] != 1) { - PrintAndLog("oops1 at %d", bit); - } - if (sum < 0 && bits[bit] != 0) { - PrintAndLog("oops2 at %d", bit); - } - } + PrintAndLog("bit %d sum %d", bit, sum); + } + + for (bit = 0; bit < 64; bit++) { + int j; + int sum = 0; + for (j = 0; j < 16; j++) { + sum += GraphBuffer[i++]; + } + if (sum > 0 && bits[bit] != 1) { + PrintAndLog("oops1 at %d", bit); + } + if (sum < 0 && bits[bit] != 0) { + PrintAndLog("oops2 at %d", bit); + } + } // HACK writing back to graphbuffer. - GraphTraceLen = 32*64; - i = 0; - int phase = 0; - for (bit = 0; bit < 64; bit++) { + GraphTraceLen = 32*64; + i = 0; + int phase = 0; + for (bit = 0; bit < 64; bit++) { phase = (bits[bit] == 0) ? 0 : 1; - int j; - for (j = 0; j < 32; j++) { - GraphBuffer[i++] = phase; - phase = !phase; - } - } - - RepaintGraphWindow(); - return 0; + int j; + for (j = 0; j < 32; j++) { + GraphBuffer[i++] = phase; + phase = !phase; + } + } + + RepaintGraphWindow(); + return 0; } - + int CmdIndalaDemod(const char *Cmd) { // Usage: recover 64bit UID by default, specify "224" as arg to recover a 224bit UID @@ -140,10 +270,13 @@ int CmdIndalaDemod(const char *Cmd) uint8_t rawbits[4096]; int rawbit = 0; int worst = 0, worstPos = 0; - // PrintAndLog("Expecting a bit less than %d raw bits", GraphTraceLen / 32); + // PrintAndLog("Expecting a bit less than %d raw bits", GraphTraceLen / 32); + + // loop through raw signal - since we know it is psk1 rf/32 fc/2 skip every other value (+=2) for (i = 0; i < GraphTraceLen-1; i += 2) { count += 1; if ((GraphBuffer[i] > GraphBuffer[i + 1]) && (state != 1)) { + // appears redundant - marshmellow if (state == 0) { for (j = 0; j < count - 8; j += 16) { rawbits[rawbit++] = 0; @@ -156,6 +289,7 @@ int CmdIndalaDemod(const char *Cmd) state = 1; count = 0; } else if ((GraphBuffer[i] < GraphBuffer[i + 1]) && (state != 0)) { + //appears redundant if (state == 1) { for (j = 0; j < count - 8; j += 16) { rawbits[rawbit++] = 1; @@ -169,8 +303,8 @@ int CmdIndalaDemod(const char *Cmd) count = 0; } } - - if (rawbit>0){ + + if ( rawbit>0 ){ PrintAndLog("Recovered %d raw bits, expected: %d", rawbit, GraphTraceLen/32); PrintAndLog("worst metric (0=best..7=worst): %d at pos %d", worst, worstPos); } else { @@ -200,7 +334,7 @@ int CmdIndalaDemod(const char *Cmd) break; } } - + if (start == rawbit - uidlen + 1) { PrintAndLog("nothing to wait for"); return 0; @@ -237,7 +371,7 @@ int CmdIndalaDemod(const char *Cmd) } times = 1; } - + //convert UID to HEX uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7; int idx; @@ -245,37 +379,36 @@ int CmdIndalaDemod(const char *Cmd) if (uidlen==64){ for( idx=0; idx<64; idx++) { - if (showbits[idx] == '0') { - uid1=(uid1<<1)|(uid2>>31); - uid2=(uid2<<1)|0; - } else { - uid1=(uid1<<1)|(uid2>>31); - uid2=(uid2<<1)|1; - } - } + if (showbits[idx] == '0') { + uid1 = (uid1<<1) | (uid2>>31); + uid2 = (uid2<<1) | 0; + } else { + uid1 = (uid1<<1) | (uid2>>31); + uid2 = (uid2<<1) | 1; + } + } PrintAndLog("UID=%s (%x%08x)", showbits, uid1, uid2); - } - else { + } else { uid3 = uid4 = uid5 = uid6 = uid7 = 0; for( idx=0; idx<224; idx++) { - uid1=(uid1<<1)|(uid2>>31); - uid2=(uid2<<1)|(uid3>>31); - uid3=(uid3<<1)|(uid4>>31); - uid4=(uid4<<1)|(uid5>>31); - uid5=(uid5<<1)|(uid6>>31); - uid6=(uid6<<1)|(uid7>>31); - + uid1 = (uid1<<1) | (uid2>>31); + uid2 = (uid2<<1) | (uid3>>31); + uid3 = (uid3<<1) | (uid4>>31); + uid4 = (uid4<<1) | (uid5>>31); + uid5 = (uid5<<1) | (uid6>>31); + uid6 = (uid6<<1) | (uid7>>31); + if (showbits[idx] == '0') uid7 = (uid7<<1) | 0; else uid7 = (uid7<<1) | 1; - } + } PrintAndLog("UID=%s (%x%08x%08x%08x%08x%08x%08x)", showbits, uid1, uid2, uid3, uid4, uid5, uid6, uid7); } // Checking UID against next occurrences - int failed = 0; + int failed = 0; for (; i + uidlen <= rawbit;) { failed = 0; for (bit = 0; bit < uidlen; bit++) { @@ -295,15 +428,11 @@ int CmdIndalaDemod(const char *Cmd) // Remodulating for tag cloning // HACK: 2015-01-04 this will have an impact on our new way of seening lf commands (demod) // since this changes graphbuffer data. - GraphTraceLen = 32*uidlen; + GraphTraceLen = 32 * uidlen; i = 0; int phase = 0; for (bit = 0; bit < uidlen; bit++) { - if (bits[bit] == 0) { - phase = 0; - } else { - phase = 1; - } + phase = (bits[bit] == 0) ? 0 : 1; int j; for (j = 0; j < 32; j++) { GraphBuffer[i++] = phase; @@ -317,103 +446,58 @@ int CmdIndalaDemod(const char *Cmd) int CmdIndalaClone(const char *Cmd) { - UsbCommand c; + UsbCommand c; unsigned int uid1, uid2, uid3, uid4, uid5, uid6, uid7; uid1 = uid2 = uid3 = uid4 = uid5 = uid6 = uid7 = 0; - int n = 0, i = 0; - - if (strchr(Cmd,'l') != 0) { - while (sscanf(&Cmd[i++], "%1x", &n ) == 1) { - uid1 = (uid1 << 4) | (uid2 >> 28); - uid2 = (uid2 << 4) | (uid3 >> 28); - uid3 = (uid3 << 4) | (uid4 >> 28); - uid4 = (uid4 << 4) | (uid5 >> 28); - uid5 = (uid5 << 4) | (uid6 >> 28); - uid6 = (uid6 << 4) | (uid7 >> 28); - uid7 = (uid7 << 4) | (n & 0xf); - } - PrintAndLog("Cloning 224bit tag with UID %x%08x%08x%08x%08x%08x%08x", uid1, uid2, uid3, uid4, uid5, uid6, uid7); - c.cmd = CMD_INDALA_CLONE_TAG_L; - c.d.asDwords[0] = uid1; - c.d.asDwords[1] = uid2; - c.d.asDwords[2] = uid3; - c.d.asDwords[3] = uid4; - c.d.asDwords[4] = uid5; - c.d.asDwords[5] = uid6; - c.d.asDwords[6] = uid7; + int n = 0, i = 0; + + if (strchr(Cmd,'l') != 0) { + while (sscanf(&Cmd[i++], "%1x", &n ) == 1) { + uid1 = (uid1 << 4) | (uid2 >> 28); + uid2 = (uid2 << 4) | (uid3 >> 28); + uid3 = (uid3 << 4) | (uid4 >> 28); + uid4 = (uid4 << 4) | (uid5 >> 28); + uid5 = (uid5 << 4) | (uid6 >> 28); + uid6 = (uid6 << 4) | (uid7 >> 28); + uid7 = (uid7 << 4) | (n & 0xf); + } + PrintAndLog("Cloning 224bit tag with UID %x%08x%08x%08x%08x%08x%08x", uid1, uid2, uid3, uid4, uid5, uid6, uid7); + c.cmd = CMD_INDALA_CLONE_TAG_L; + c.d.asDwords[0] = uid1; + c.d.asDwords[1] = uid2; + c.d.asDwords[2] = uid3; + c.d.asDwords[3] = uid4; + c.d.asDwords[4] = uid5; + c.d.asDwords[5] = uid6; + c.d.asDwords[6] = uid7; } else { - while (sscanf(&Cmd[i++], "%1x", &n ) == 1) { - uid1 = (uid1 << 4) | (uid2 >> 28); - uid2 = (uid2 << 4) | (n & 0xf); - } - PrintAndLog("Cloning 64bit tag with UID %x%08x", uid1, uid2); - c.cmd = CMD_INDALA_CLONE_TAG; - c.arg[0] = uid1; - c.arg[1] = uid2; - } - - SendCommand(&c); - return 0; -} - -int usage_lf_read() -{ - PrintAndLog("Usage: lf read"); - PrintAndLog("Options: "); - PrintAndLog(" h This help"); - PrintAndLog(" s silent run no printout"); - PrintAndLog("This function takes no arguments. "); - PrintAndLog("Use 'lf config' to set parameters."); - return 0; -} -int usage_lf_snoop() -{ - PrintAndLog("Usage: lf snoop"); - PrintAndLog("Options: "); - PrintAndLog(" h This help"); - PrintAndLog("This function takes no arguments. "); - PrintAndLog("Use 'lf config' to set parameters."); - return 0; -} - -int usage_lf_config() -{ - PrintAndLog("Usage: lf config [H|] [b ] [d ] [a 0|1]"); - PrintAndLog("Options: "); - PrintAndLog(" h This help"); - PrintAndLog(" L Low frequency (125 KHz)"); - PrintAndLog(" H High frequency (134 KHz)"); - PrintAndLog(" q Manually set divisor. 88-> 134KHz, 95-> 125 Hz"); - PrintAndLog(" b Sets resolution of bits per sample. Default (max): 8"); - PrintAndLog(" d Sets decimation. A value of N saves only 1 in N samples. Default: 1"); - PrintAndLog(" a [0|1] Averaging - if set, will average the stored sample value when decimating. Default: 1"); - PrintAndLog(" t Sets trigger threshold. 0 means no threshold"); - PrintAndLog("Examples:"); - PrintAndLog(" lf config b 8 L"); - PrintAndLog(" Samples at 125KHz, 8bps."); - PrintAndLog(" lf config H b 4 d 3"); - PrintAndLog(" Samples at 134KHz, averages three samples into one, stored with "); - PrintAndLog(" a resolution of 4 bits per sample."); - PrintAndLog(" lf read"); - PrintAndLog(" Performs a read (active field)"); - PrintAndLog(" lf snoop"); - PrintAndLog(" Performs a snoop (no active field)"); - return 0; + while (sscanf(&Cmd[i++], "%1x", &n ) == 1) { + uid1 = (uid1 << 4) | (uid2 >> 28); + uid2 = (uid2 << 4) | (n & 0xf); + } + PrintAndLog("Cloning 64bit tag with UID %x%08x", uid1, uid2); + c.cmd = CMD_INDALA_CLONE_TAG; + c.arg[0] = uid1; + c.arg[1] = uid2; + } + + clearCommandBuffer(); + SendCommand(&c); + return 0; } int CmdLFSetConfig(const char *Cmd) { - uint8_t divisor = 0;//Frequency divisor uint8_t bps = 0; // Bits per sample uint8_t decimation = 0; //How many to keep bool averaging = 1; // Defaults to true bool errors = FALSE; - int trigger_threshold =-1;//Means no change + int trigger_threshold = -1;//Means no change uint8_t unsigned_trigg = 0; - uint8_t cmdp =0; + uint8_t cmdp = 0; while(param_getchar(Cmd, cmdp) != 0x00) { switch(param_getchar(Cmd, cmdp)) @@ -456,55 +540,53 @@ int CmdLFSetConfig(const char *Cmd) } if(errors) break; } - if(cmdp == 0) - { - errors = 1;// No args - } + + // No args + if (cmdp == 0) errors = 1; //Validations - if(errors) - { - return usage_lf_config(); - } + if (errors) return usage_lf_config(); + //Bps is limited to 8, so fits in lower half of arg1 - if(bps >> 8) bps = 8; + if (bps >> 4) bps = 8; + + sample_config config = { decimation, bps, averaging, divisor, trigger_threshold }; - sample_config config = { - decimation,bps,averaging,divisor,trigger_threshold - }; //Averaging is a flag on high-bit of arg[1] UsbCommand c = {CMD_SET_LF_SAMPLING_CONFIG}; memcpy(c.d.asBytes,&config,sizeof(sample_config)); + clearCommandBuffer(); SendCommand(&c); return 0; } int CmdLFRead(const char *Cmd) { - - uint8_t cmdp = 0; bool arg1 = false; - if (param_getchar(Cmd, cmdp) == 'h') - { - return usage_lf_read(); - } - if (param_getchar(Cmd, cmdp) == 's') arg1 = true; //suppress print - //And ship it to device + uint8_t cmdp = param_getchar(Cmd, 0); + + if ( cmdp == 'h' || cmdp == 'H') return usage_lf_read(); + + //suppress print + if ( cmdp == 's' || cmdp == 'S') arg1 = true; + UsbCommand c = {CMD_ACQUIRE_RAW_ADC_SAMPLES_125K, {arg1,0,0}}; + clearCommandBuffer(); SendCommand(&c); - WaitForResponse(CMD_ACK,NULL); + if ( !WaitForResponseTimeout(CMD_ACK,NULL,2500) ) { + PrintAndLog("command execution time out"); + return 1; + } return 0; } int CmdLFSnoop(const char *Cmd) { - uint8_t cmdp =0; - if(param_getchar(Cmd, cmdp) == 'h') - { - return usage_lf_snoop(); - } - + uint8_t cmdp = param_getchar(Cmd, 0); + if(cmdp == 'h' || cmdp == 'H') return usage_lf_snoop(); + UsbCommand c = {CMD_LF_SNOOP_RAW_ADC_SAMPLES}; + clearCommandBuffer(); SendCommand(&c); WaitForResponse(CMD_ACK,NULL); return 0; @@ -512,15 +594,15 @@ int CmdLFSnoop(const char *Cmd) static void ChkBitstream(const char *str) { - int i; + int i; - /* convert to bitstream if necessary */ + /* convert to bitstream if necessary */ for (i = 0; i < (int)(GraphTraceLen / 2); i++){ if (GraphBuffer[i] > 1 || GraphBuffer[i] < 0) { - CmdGetBitStream(""); - break; - } - } + CmdGetBitStream(""); + break; + } + } } //Attempt to simulate any wave in buffer (one bit per output sample) // converts GraphBuffer to bitstream (based on zero crossings) if needed. @@ -532,483 +614,426 @@ int CmdLFSim(const char *Cmd) sscanf(Cmd, "%i", &gap); // convert to bitstream if necessary - ChkBitstream(Cmd); //can send only 512 bits at a time (1 byte sent per bit...) printf("Sending [%d bytes]", GraphTraceLen); for (i = 0; i < GraphTraceLen; i += USB_CMD_DATA_SIZE) { - UsbCommand c={CMD_DOWNLOADED_SIM_SAMPLES_125K, {i, 0, 0}}; + UsbCommand c = {CMD_DOWNLOADED_SIM_SAMPLES_125K, {i, 0, 0}}; for (j = 0; j < USB_CMD_DATA_SIZE; j++) { c.d.asBytes[j] = GraphBuffer[i+j]; } + clearCommandBuffer(); SendCommand(&c); WaitForResponse(CMD_ACK,NULL); printf("."); } - printf("\n"); - PrintAndLog("Starting to simulate"); + PrintAndLog("\nStarting to simulate"); UsbCommand c = {CMD_SIMULATE_TAG_125K, {GraphTraceLen, gap, 0}}; + clearCommandBuffer(); SendCommand(&c); return 0; } -int usage_lf_simfsk(void) -{ - //print help - PrintAndLog("Usage: lf simfsk [c ] [i] [H ] [L ] [d ]"); - PrintAndLog("Options: "); - PrintAndLog(" h This help"); - PrintAndLog(" c Manually set clock - can autodetect if using DemodBuffer"); - PrintAndLog(" i invert data"); - PrintAndLog(" H Manually set the larger Field Clock"); - PrintAndLog(" L Manually set the smaller Field Clock"); - //PrintAndLog(" s TBD- -to enable a gap between playback repetitions - default: no gap"); - PrintAndLog(" d Data to sim as hex - omit to sim from DemodBuffer"); - PrintAndLog("\n NOTE: if you set one clock manually set them all manually"); - return 0; -} - -int usage_lf_simask(void) -{ - //print help - PrintAndLog("Usage: lf simask [c ] [i] [b|m|r] [s] [d ]"); - PrintAndLog("Options: "); - PrintAndLog(" h This help"); - PrintAndLog(" c Manually set clock - can autodetect if using DemodBuffer"); - PrintAndLog(" i invert data"); - PrintAndLog(" b sim ask/biphase"); - PrintAndLog(" m sim ask/manchester - Default"); - PrintAndLog(" r sim ask/raw"); - PrintAndLog(" s TBD- -to enable a gap between playback repetitions - default: no gap"); - PrintAndLog(" d Data to sim as hex - omit to sim from DemodBuffer"); - return 0; -} - -int usage_lf_simpsk(void) -{ - //print help - PrintAndLog("Usage: lf simpsk [1|2|3] [c ] [i] [r ] [d ]"); - PrintAndLog("Options: "); - PrintAndLog(" h This help"); - PrintAndLog(" c Manually set clock - can autodetect if using DemodBuffer"); - PrintAndLog(" i invert data"); - PrintAndLog(" 1 set PSK1 (default)"); - PrintAndLog(" 2 set PSK2"); - PrintAndLog(" 3 set PSK3"); - PrintAndLog(" r 2|4|8 are valid carriers: default = 2"); - PrintAndLog(" d Data to sim as hex - omit to sim from DemodBuffer"); - return 0; -} - // by marshmellow - sim ask data given clock, fcHigh, fcLow, invert // - allow pull data from DemodBuffer int CmdLFfskSim(const char *Cmd) { //might be able to autodetect FCs and clock from Graphbuffer if using demod buffer // otherwise will need FChigh, FClow, Clock, and bitstream - uint8_t fcHigh=0, fcLow=0, clk=0; - uint8_t invert=0; - bool errors = FALSE; - char hexData[32] = {0x00}; // store entered hex data - uint8_t data[255] = {0x00}; - int dataLen = 0; - uint8_t cmdp = 0; - while(param_getchar(Cmd, cmdp) != 0x00) - { - switch(param_getchar(Cmd, cmdp)) - { - case 'h': - return usage_lf_simfsk(); - case 'i': - invert = 1; - cmdp++; - break; - case 'c': - errors |= param_getdec(Cmd,cmdp+1,&clk); - cmdp+=2; - break; - case 'H': - errors |= param_getdec(Cmd,cmdp+1,&fcHigh); - cmdp+=2; - break; - case 'L': - errors |= param_getdec(Cmd,cmdp+1,&fcLow); - cmdp+=2; - break; - //case 's': - // separator=1; - // cmdp++; - // break; - case 'd': - dataLen = param_getstr(Cmd, cmdp+1, hexData); - if (dataLen==0) { - errors=TRUE; - } else { - dataLen = hextobinarray((char *)data, hexData); - } - if (dataLen==0) errors=TRUE; - if (errors) PrintAndLog ("Error getting hex data"); - cmdp+=2; - break; - default: - PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp)); - errors = TRUE; - break; - } - if(errors) break; - } - if(cmdp == 0 && DemodBufferLen == 0) - { - errors = TRUE;// No args - } - - //Validations - if(errors) - { - return usage_lf_simfsk(); - } - - if (dataLen == 0){ //using DemodBuffer - if (clk==0 || fcHigh==0 || fcLow==0){ //manual settings must set them all - uint8_t ans = fskClocks(&fcHigh, &fcLow, &clk, 0); - if (ans==0){ - if (!fcHigh) fcHigh=10; - if (!fcLow) fcLow=8; - if (!clk) clk=50; - } - } - } else { - setDemodBuf(data, dataLen, 0); - } + uint8_t fcHigh=0, fcLow=0, clk=0; + uint8_t invert=0; + bool errors = FALSE; + char hexData[32] = {0x00}; // store entered hex data + uint8_t data[255] = {0x00}; + int dataLen = 0; + uint8_t cmdp = 0; + while(param_getchar(Cmd, cmdp) != 0x00) + { + switch(param_getchar(Cmd, cmdp)) + { + case 'h': + return usage_lf_simfsk(); + case 'i': + invert = 1; + cmdp++; + break; + case 'c': + errors |= param_getdec(Cmd,cmdp+1,&clk); + cmdp+=2; + break; + case 'H': + errors |= param_getdec(Cmd,cmdp+1,&fcHigh); + cmdp+=2; + break; + case 'L': + errors |= param_getdec(Cmd,cmdp+1,&fcLow); + cmdp+=2; + break; + //case 's': + // separator=1; + // cmdp++; + // break; + case 'd': + dataLen = param_getstr(Cmd, cmdp+1, hexData); + if (dataLen==0) { + errors=TRUE; + } else { + dataLen = hextobinarray((char *)data, hexData); + } + if (dataLen==0) errors=TRUE; + if (errors) PrintAndLog ("Error getting hex data"); + cmdp+=2; + break; + default: + PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp)); + errors = TRUE; + break; + } + if(errors) break; + } + if(cmdp == 0 && DemodBufferLen == 0) + { + errors = TRUE;// No args + } + + //Validations + if(errors) + { + return usage_lf_simfsk(); + } + + if (dataLen == 0){ //using DemodBuffer + if (clk==0 || fcHigh==0 || fcLow==0){ //manual settings must set them all + uint8_t ans = fskClocks(&fcHigh, &fcLow, &clk, 0); + if (ans==0){ + if (!fcHigh) fcHigh=10; + if (!fcLow) fcLow=8; + if (!clk) clk=50; + } + } + } else { + setDemodBuf(data, dataLen, 0); + } //default if not found - if (clk == 0) clk = 50; - if (fcHigh == 0) fcHigh = 10; - if (fcLow == 0) fcLow = 8; - - uint16_t arg1, arg2; - arg1 = fcHigh << 8 | fcLow; - arg2 = invert << 8 | clk; - size_t size = DemodBufferLen; - if (size > USB_CMD_DATA_SIZE) { - PrintAndLog("DemodBuffer too long for current implementation - length: %d - max: %d", size, USB_CMD_DATA_SIZE); - size = USB_CMD_DATA_SIZE; - } - UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}}; - - memcpy(c.d.asBytes, DemodBuffer, size); - SendCommand(&c); - return 0; + if (clk == 0) clk = 50; + if (fcHigh == 0) fcHigh = 10; + if (fcLow == 0) fcLow = 8; + + uint16_t arg1, arg2; + arg1 = fcHigh << 8 | fcLow; + arg2 = invert << 8 | clk; + size_t size = DemodBufferLen; + if (size > USB_CMD_DATA_SIZE) { + PrintAndLog("DemodBuffer too long for current implementation - length: %d - max: %d", size, USB_CMD_DATA_SIZE); + size = USB_CMD_DATA_SIZE; + } + UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}}; + + memcpy(c.d.asBytes, DemodBuffer, size); + clearCommandBuffer(); + SendCommand(&c); + return 0; } // by marshmellow - sim ask data given clock, invert, manchester or raw, separator // - allow pull data from DemodBuffer int CmdLFaskSim(const char *Cmd) { - //autodetect clock from Graphbuffer if using demod buffer + //autodetect clock from Graphbuffer if using demod buffer // needs clock, invert, manchester/raw as m or r, separator as s, and bitstream - uint8_t encoding = 1, separator = 0; - uint8_t clk=0, invert=0; - bool errors = FALSE; - char hexData[32] = {0x00}; - uint8_t data[255]= {0x00}; // store entered hex data - int dataLen = 0; - uint8_t cmdp = 0; - while(param_getchar(Cmd, cmdp) != 0x00) - { - switch(param_getchar(Cmd, cmdp)) - { - case 'h': - return usage_lf_simask(); - case 'i': - invert = 1; - cmdp++; - break; - case 'c': - errors |= param_getdec(Cmd,cmdp+1,&clk); - cmdp+=2; - break; - case 'b': - encoding=2; //biphase - cmdp++; - break; - case 'm': - encoding=1; - cmdp++; - break; - case 'r': - encoding=0; - cmdp++; - break; - case 's': - separator=1; - cmdp++; - break; - case 'd': - dataLen = param_getstr(Cmd, cmdp+1, hexData); - if (dataLen==0) { - errors=TRUE; - } else { - dataLen = hextobinarray((char *)data, hexData); - } - if (dataLen==0) errors=TRUE; - if (errors) PrintAndLog ("Error getting hex data, datalen: %d",dataLen); - cmdp+=2; - break; - default: - PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp)); - errors = TRUE; - break; - } - if(errors) break; - } - if(cmdp == 0 && DemodBufferLen == 0) - { - errors = TRUE;// No args - } - - //Validations - if(errors) - { - return usage_lf_simask(); - } - if (dataLen == 0){ //using DemodBuffer - if (clk == 0) clk = GetAskClock("0", false, false); - } else { - setDemodBuf(data, dataLen, 0); - } - if (clk == 0) clk = 64; - if (encoding == 0) clk = clk/2; //askraw needs to double the clock speed - uint16_t arg1, arg2; - size_t size=DemodBufferLen; - arg1 = clk << 8 | encoding; - arg2 = invert << 8 | separator; - if (size > USB_CMD_DATA_SIZE) { - PrintAndLog("DemodBuffer too long for current implementation - length: %d - max: %d", size, USB_CMD_DATA_SIZE); - size = USB_CMD_DATA_SIZE; - } - UsbCommand c = {CMD_ASK_SIM_TAG, {arg1, arg2, size}}; - PrintAndLog("preparing to sim ask data: %d bits", size); - memcpy(c.d.asBytes, DemodBuffer, size); - SendCommand(&c); - return 0; + uint8_t encoding = 1, separator = 0; + uint8_t clk=0, invert=0; + bool errors = FALSE; + char hexData[32] = {0x00}; + uint8_t data[255]= {0x00}; // store entered hex data + int dataLen = 0; + uint8_t cmdp = 0; + while(param_getchar(Cmd, cmdp) != 0x00) + { + switch(param_getchar(Cmd, cmdp)) + { + case 'h': + return usage_lf_simask(); + case 'i': + invert = 1; + cmdp++; + break; + case 'c': + errors |= param_getdec(Cmd,cmdp+1,&clk); + cmdp+=2; + break; + case 'b': + encoding=2; //biphase + cmdp++; + break; + case 'm': + encoding=1; + cmdp++; + break; + case 'r': + encoding=0; + cmdp++; + break; + case 's': + separator=1; + cmdp++; + break; + case 'd': + dataLen = param_getstr(Cmd, cmdp+1, hexData); + if (dataLen==0) { + errors=TRUE; + } else { + dataLen = hextobinarray((char *)data, hexData); + } + if (dataLen==0) errors=TRUE; + if (errors) PrintAndLog ("Error getting hex data, datalen: %d",dataLen); + cmdp+=2; + break; + default: + PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp)); + errors = TRUE; + break; + } + if(errors) break; + } + if(cmdp == 0 && DemodBufferLen == 0) + { + errors = TRUE;// No args + } + + //Validations + if(errors) + { + return usage_lf_simask(); + } + if (dataLen == 0){ //using DemodBuffer + if (clk == 0) clk = GetAskClock("0", false, false); + } else { + setDemodBuf(data, dataLen, 0); + } + if (clk == 0) clk = 64; + if (encoding == 0) clk = clk/2; //askraw needs to double the clock speed + uint16_t arg1, arg2; + size_t size=DemodBufferLen; + arg1 = clk << 8 | encoding; + arg2 = invert << 8 | separator; + if (size > USB_CMD_DATA_SIZE) { + PrintAndLog("DemodBuffer too long for current implementation - length: %d - max: %d", size, USB_CMD_DATA_SIZE); + size = USB_CMD_DATA_SIZE; + } + UsbCommand c = {CMD_ASK_SIM_TAG, {arg1, arg2, size}}; + PrintAndLog("preparing to sim ask data: %d bits", size); + memcpy(c.d.asBytes, DemodBuffer, size); + clearCommandBuffer(); + SendCommand(&c); + return 0; } // by marshmellow - sim psk data given carrier, clock, invert // - allow pull data from DemodBuffer or parameters int CmdLFpskSim(const char *Cmd) { - //might be able to autodetect FC and clock from Graphbuffer if using demod buffer - //will need carrier, Clock, and bitstream - uint8_t carrier=0, clk=0; - uint8_t invert=0; - bool errors = FALSE; - char hexData[32] = {0x00}; // store entered hex data - uint8_t data[255] = {0x00}; - int dataLen = 0; - uint8_t cmdp = 0; - uint8_t pskType = 1; - while(param_getchar(Cmd, cmdp) != 0x00) - { - switch(param_getchar(Cmd, cmdp)) - { - case 'h': - return usage_lf_simpsk(); - case 'i': - invert = 1; - cmdp++; - break; - case 'c': - errors |= param_getdec(Cmd,cmdp+1,&clk); - cmdp+=2; - break; - case 'r': - errors |= param_getdec(Cmd,cmdp+1,&carrier); - cmdp+=2; - break; - case '1': - pskType=1; - cmdp++; - break; - case '2': - pskType=2; - cmdp++; - break; - case '3': - pskType=3; - cmdp++; - break; - case 'd': - dataLen = param_getstr(Cmd, cmdp+1, hexData); - if (dataLen==0) { - errors=TRUE; - } else { - dataLen = hextobinarray((char *)data, hexData); - } - if (dataLen==0) errors=TRUE; - if (errors) PrintAndLog ("Error getting hex data"); - cmdp+=2; - break; - default: - PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp)); - errors = TRUE; - break; - } - if (errors) break; - } - if (cmdp == 0 && DemodBufferLen == 0) - { - errors = TRUE;// No args - } - - //Validations - if (errors) - { - return usage_lf_simpsk(); - } - if (dataLen == 0){ //using DemodBuffer - PrintAndLog("Getting Clocks"); - if (clk==0) clk = GetPskClock("", FALSE, FALSE); - PrintAndLog("clk: %d",clk); - if (!carrier) carrier = GetPskCarrier("", FALSE, FALSE); - PrintAndLog("carrier: %d", carrier); - } else { - setDemodBuf(data, dataLen, 0); - } - - if (clk <= 0) clk = 32; - if (carrier == 0) carrier = 2; - if (pskType != 1){ - if (pskType == 2){ - //need to convert psk2 to psk1 data before sim - psk2TOpsk1(DemodBuffer, DemodBufferLen); - } else { - PrintAndLog("Sorry, PSK3 not yet available"); - } - } - uint16_t arg1, arg2; - arg1 = clk << 8 | carrier; - arg2 = invert; - size_t size=DemodBufferLen; - if (size > USB_CMD_DATA_SIZE) { - PrintAndLog("DemodBuffer too long for current implementation - length: %d - max: %d", size, USB_CMD_DATA_SIZE); - size=USB_CMD_DATA_SIZE; - } - UsbCommand c = {CMD_PSK_SIM_TAG, {arg1, arg2, size}}; - PrintAndLog("DEBUG: Sending DemodBuffer Length: %d", size); - memcpy(c.d.asBytes, DemodBuffer, size); - SendCommand(&c); - - return 0; + //might be able to autodetect FC and clock from Graphbuffer if using demod buffer + //will need carrier, Clock, and bitstream + uint8_t carrier=0, clk=0; + uint8_t invert=0; + bool errors = FALSE; + char hexData[32] = {0x00}; // store entered hex data + uint8_t data[255] = {0x00}; + int dataLen = 0; + uint8_t cmdp = 0; + uint8_t pskType = 1; + while(param_getchar(Cmd, cmdp) != 0x00) + { + switch(param_getchar(Cmd, cmdp)) + { + case 'h': + return usage_lf_simpsk(); + case 'i': + invert = 1; + cmdp++; + break; + case 'c': + errors |= param_getdec(Cmd,cmdp+1,&clk); + cmdp+=2; + break; + case 'r': + errors |= param_getdec(Cmd,cmdp+1,&carrier); + cmdp+=2; + break; + case '1': + pskType=1; + cmdp++; + break; + case '2': + pskType=2; + cmdp++; + break; + case '3': + pskType=3; + cmdp++; + break; + case 'd': + dataLen = param_getstr(Cmd, cmdp+1, hexData); + if (dataLen==0) { + errors=TRUE; + } else { + dataLen = hextobinarray((char *)data, hexData); + } + if (dataLen==0) errors=TRUE; + if (errors) PrintAndLog ("Error getting hex data"); + cmdp+=2; + break; + default: + PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp)); + errors = TRUE; + break; + } + if (errors) break; + } + if (cmdp == 0 && DemodBufferLen == 0) + { + errors = TRUE;// No args + } + + //Validations + if (errors) + { + return usage_lf_simpsk(); + } + if (dataLen == 0){ //using DemodBuffer + PrintAndLog("Getting Clocks"); + if (clk==0) clk = GetPskClock("", FALSE, FALSE); + PrintAndLog("clk: %d",clk); + if (!carrier) carrier = GetPskCarrier("", FALSE, FALSE); + PrintAndLog("carrier: %d", carrier); + } else { + setDemodBuf(data, dataLen, 0); + } + + if (clk <= 0) clk = 32; + if (carrier == 0) carrier = 2; + if (pskType != 1){ + if (pskType == 2){ + //need to convert psk2 to psk1 data before sim + psk2TOpsk1(DemodBuffer, DemodBufferLen); + } else { + PrintAndLog("Sorry, PSK3 not yet available"); + } + } + uint16_t arg1, arg2; + arg1 = clk << 8 | carrier; + arg2 = invert; + size_t size=DemodBufferLen; + if (size > USB_CMD_DATA_SIZE) { + PrintAndLog("DemodBuffer too long for current implementation - length: %d - max: %d", size, USB_CMD_DATA_SIZE); + size=USB_CMD_DATA_SIZE; + } + UsbCommand c = {CMD_PSK_SIM_TAG, {arg1, arg2, size}}; + PrintAndLog("DEBUG: Sending DemodBuffer Length: %d", size); + memcpy(c.d.asBytes, DemodBuffer, size); + clearCommandBuffer(); + SendCommand(&c); + + return 0; } int CmdLFSimBidir(const char *Cmd) { - // Set ADC to twice the carrier for a slight supersampling - // HACK: not implemented in ARMSRC. - PrintAndLog("Not implemented yet."); - UsbCommand c = {CMD_LF_SIMULATE_BIDIR, {47, 384, 0}}; - SendCommand(&c); - return 0; + // Set ADC to twice the carrier for a slight supersampling + // HACK: not implemented in ARMSRC. + PrintAndLog("Not implemented yet."); + UsbCommand c = {CMD_LF_SIMULATE_BIDIR, {47, 384, 0}}; + SendCommand(&c); + return 0; } int CmdVchDemod(const char *Cmd) { - // Is this the entire sync pattern, or does this also include some - // data bits that happen to be the same everywhere? That would be - // lovely to know. - static const int SyncPattern[] = { - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, - }; - - // So first, we correlate for the sync pattern, and mark that. - int bestCorrel = 0, bestPos = 0; - int i; - // It does us no good to find the sync pattern, with fewer than - // 2048 samples after it... - for (i = 0; i < (GraphTraceLen-2048); i++) { - int sum = 0; - int j; - for (j = 0; j < arraylen(SyncPattern); j++) { - sum += GraphBuffer[i+j]*SyncPattern[j]; - } - if (sum > bestCorrel) { - bestCorrel = sum; - bestPos = i; - } - } - PrintAndLog("best sync at %d [metric %d]", bestPos, bestCorrel); - - char bits[257]; - bits[256] = '\0'; - - int worst = INT_MAX; - int worstPos = 0; - - for (i = 0; i < 2048; i += 8) { - int sum = 0; - int j; - for (j = 0; j < 8; j++) { - sum += GraphBuffer[bestPos+i+j]; - } - if (sum < 0) { - bits[i/8] = '.'; - } else { - bits[i/8] = '1'; - } - if(abs(sum) < worst) { - worst = abs(sum); - worstPos = i; - } - } - PrintAndLog("bits:"); - PrintAndLog("%s", bits); - PrintAndLog("worst metric: %d at pos %d", worst, worstPos); - - if (strcmp(Cmd, "clone")==0) { - GraphTraceLen = 0; - char *s; - for(s = bits; *s; s++) { - int j; - for(j = 0; j < 16; j++) { - GraphBuffer[GraphTraceLen++] = (*s == '1') ? 1 : 0; - } - } - RepaintGraphWindow(); - } - return 0; + // Is this the entire sync pattern, or does this also include some + // data bits that happen to be the same everywhere? That would be + // lovely to know. + static const int SyncPattern[] = { + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + }; + + // So first, we correlate for the sync pattern, and mark that. + int bestCorrel = 0, bestPos = 0; + int i; + // It does us no good to find the sync pattern, with fewer than + // 2048 samples after it... + for (i = 0; i < (GraphTraceLen-2048); i++) { + int sum = 0; + int j; + for (j = 0; j < arraylen(SyncPattern); j++) { + sum += GraphBuffer[i+j]*SyncPattern[j]; + } + if (sum > bestCorrel) { + bestCorrel = sum; + bestPos = i; + } + } + PrintAndLog("best sync at %d [metric %d]", bestPos, bestCorrel); + + char bits[257]; + bits[256] = '\0'; + + int worst = INT_MAX; + int worstPos = 0; + + for (i = 0; i < 2048; i += 8) { + int sum = 0; + int j; + for (j = 0; j < 8; j++) { + sum += GraphBuffer[bestPos+i+j]; + } + if (sum < 0) { + bits[i/8] = '.'; + } else { + bits[i/8] = '1'; + } + if(abs(sum) < worst) { + worst = abs(sum); + worstPos = i; + } + } + PrintAndLog("bits:"); + PrintAndLog("%s", bits); + PrintAndLog("worst metric: %d at pos %d", worst, worstPos); + + if (strcmp(Cmd, "clone")==0) { + GraphTraceLen = 0; + char *s; + for(s = bits; *s; s++) { + int j; + for(j = 0; j < 16; j++) { + GraphBuffer[GraphTraceLen++] = (*s == '1') ? 1 : 0; + } + } + RepaintGraphWindow(); + } + return 0; } //by marshmellow -int CmdLFfind(const char *Cmd) -{ - int ans=0; +int CmdLFfind(const char *Cmd) { + int ans = 0; char cmdp = param_getchar(Cmd, 0); char testRaw = param_getchar(Cmd, 1); - if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') { - PrintAndLog("Usage: lf search <0|1> [u]"); - PrintAndLog(" , if not set, try reading data from tag."); - PrintAndLog(" [Search for Unknown tags] , if not set, reads only known tags."); - PrintAndLog(""); - PrintAndLog(" sample: lf search = try reading data from tag & search for known tags"); - PrintAndLog(" : lf search 1 = use data from GraphBuffer & search for known tags"); - PrintAndLog(" : lf search u = try reading data from tag & search for known and unknown tags"); - PrintAndLog(" : lf search 1 u = use data from GraphBuffer & search for known and unknown tags"); - - return 0; - } + if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') return usage_lf_find(); if (!offline && (cmdp != '1')){ CmdLFRead("s"); @@ -1025,50 +1050,49 @@ int CmdLFfind(const char *Cmd) ans=CmdFSKdemodIO(""); if (ans>0) { - PrintAndLog("\nValid IO Prox ID Found!"); - return 1; + PrintAndLog("\nValid IO Prox ID Found!"); + return 1; } ans=CmdFSKdemodPyramid(""); if (ans>0) { - PrintAndLog("\nValid Pyramid ID Found!"); - return 1; + PrintAndLog("\nValid Pyramid ID Found!"); + return 1; } ans=CmdFSKdemodParadox(""); if (ans>0) { - PrintAndLog("\nValid Paradox ID Found!"); - return 1; + PrintAndLog("\nValid Paradox ID Found!"); + return 1; } ans=CmdFSKdemodAWID(""); if (ans>0) { - PrintAndLog("\nValid AWID ID Found!"); - return 1; + PrintAndLog("\nValid AWID ID Found!"); + return 1; } ans=CmdFSKdemodHID(""); if (ans>0) { - PrintAndLog("\nValid HID Prox ID Found!"); - return 1; + PrintAndLog("\nValid HID Prox ID Found!"); + return 1; } - //add psk and indala - ans=CmdIndalaDecode(""); + ans=CmdAskEM410xDemod(""); if (ans>0) { - PrintAndLog("\nValid Indala ID Found!"); - return 1; + PrintAndLog("\nValid EM410x ID Found!"); + return 1; } - ans=CmdAskEM410xDemod(""); + ans=CmdG_Prox_II_Demod(""); if (ans>0) { - PrintAndLog("\nValid EM410x ID Found!"); - return 1; + PrintAndLog("\nValid Guardall G-Prox II ID Found!"); + return 1; } - ans=CmdG_Prox_II_Demod(""); + ans=CmdFDXBdemodBI(""); if (ans>0) { - PrintAndLog("\nValid G Prox II ID Found!"); + PrintAndLog("\nValid FDX-B ID Found!"); return 1; } @@ -1078,18 +1102,59 @@ int CmdLFfind(const char *Cmd) return 1; } + ans=CmdVikingDemod(""); + if (ans>0) { + PrintAndLog("\nValid Viking ID Found!"); + return 1; + } + + ans=CmdIndalaDecode(""); + if (ans>0) { + PrintAndLog("\nValid Indala ID Found!"); + return 1; + } + ans=CmdPSKNexWatch(""); if (ans>0) { PrintAndLog("\nValid NexWatch ID Found!"); return 1; } + // TIdemod? + PrintAndLog("\nNo Known Tags Found!\n"); if (testRaw=='u' || testRaw=='U'){ //test unknown tag formats (raw mode) PrintAndLog("\nChecking for Unknown tags:\n"); ans=AutoCorrelate(4000, FALSE, FALSE); - if (ans > 0) PrintAndLog("Possible Auto Correlation of %d repeating samples",ans); + + if (ans > 0) { + + PrintAndLog("Possible Auto Correlation of %d repeating samples",ans); + + if ( ans % 8 == 0) { + int bytes = (ans / 8); + PrintAndLog("Possible %d bytes", bytes); + int blocks = 0; + if ( bytes % 2 == 0) { + blocks = (bytes / 2); + PrintAndLog("Possible 2 blocks, width %d", blocks); + } + if ( bytes % 4 == 0) { + blocks = (bytes / 4); + PrintAndLog("Possible 4 blocks, width %d", blocks); + } + if ( bytes % 8 == 0) { + blocks = (bytes / 8); + PrintAndLog("Possible 8 blocks, width %d", blocks); + } + if ( bytes % 16 == 0) { + blocks = (bytes / 16); + PrintAndLog("Possible 16 blocks, width %d", blocks); + } + } + } + ans=GetFskClock("",FALSE,FALSE); if (ans != 0){ //fsk ans=FSKrawDemod("",TRUE); @@ -1098,12 +1163,14 @@ int CmdLFfind(const char *Cmd) return 1; } } - ans=ASKDemod("0 0 0",TRUE,FALSE,1); + bool st = TRUE; + ans=ASKDemod_ext("0 0 0",TRUE,FALSE,1,&st); if (ans>0) { - PrintAndLog("\nUnknown ASK Modulated and Manchester encoded Tag Found!"); - PrintAndLog("\nif it does not look right it could instead be ASK/Biphase - try 'data rawdemod ab'"); - return 1; + PrintAndLog("\nUnknown ASK Modulated and Manchester encoded Tag Found!"); + PrintAndLog("\nif it does not look right it could instead be ASK/Biphase - try 'data rawdemod ab'"); + return 1; } + ans=CmdPSK1rawDemod(""); if (ans>0) { PrintAndLog("Possible unknown PSK1 Modulated Tag Found above!\n\nCould also be PSK2 - try 'data rawdemod p2'"); @@ -1119,38 +1186,42 @@ int CmdLFfind(const char *Cmd) static command_t CommandTable[] = { {"help", CmdHelp, 1, "This help"}, - {"cmdread", CmdLFCommandRead, 0, " <'0' period> <'1' period> ['h'] -- Modulate LF reader field to send command before read (all periods in microseconds) (option 'h' for 134)"}, + {"awid", CmdLFAWID, 1, "{ AWID RFIDs... }"}, {"em4x", CmdLFEM4X, 1, "{ EM4X RFIDs... }"}, + {"guard", CmdLFGuard, 1, "{ Guardall RFIDs... }"}, + {"hid", CmdLFHID, 1, "{ HID RFIDs... }"}, + {"hitag", CmdLFHitag, 1, "{ HITAG RFIDs... }"}, + {"io", CmdLFIO, 1, "{ IOPROX RFIDs... }"}, + {"pcf7931", CmdLFPCF7931, 1, "{ PCF7931 RFIDs... }"}, + {"presco", CmdLFPresco, 1, "{ Presco RFIDs... }"}, + {"pyramid", CmdLFPyramid, 1, "{ Farpointe/Pyramid RFIDs... }"}, + {"ti", CmdLFTI, 1, "{ TI RFIDs... }"}, + {"t55xx", CmdLFT55XX, 1, "{ T55xx RFIDs... }"}, + {"viking", CmdLFViking, 1, "{ Viking RFIDs... }"}, {"config", CmdLFSetConfig, 0, "Set config for LF sampling, bit/sample, decimation, frequency"}, + {"cmdread", CmdLFCommandRead, 0, " <'0' period> <'1' period> ['h' 134] \n\t\t-- Modulate LF reader field to send command before read (all periods in microseconds)"}, {"flexdemod", CmdFlexdemod, 1, "Demodulate samples for FlexPass"}, - {"hid", CmdLFHID, 1, "{ HID RFIDs... }"}, - {"io", CmdLFIO, 1, "{ ioProx tags... }"}, {"indalademod", CmdIndalaDemod, 1, "['224'] -- Demodulate samples for Indala 64 bit UID (option '224' for 224 bit)"}, {"indalaclone", CmdIndalaClone, 0, " ['l']-- Clone Indala to T55x7 (tag must be in antenna)(UID in HEX)(option 'l' for 224 UID"}, {"read", CmdLFRead, 0, "['s' silent] Read 125/134 kHz LF ID-only tag. Do 'lf read h' for help"}, - {"search", CmdLFfind, 1, "[offline] ['u'] Read and Search for valid known tag (in offline mode it you can load first then search) - 'u' to search for unknown tags"}, + {"search", CmdLFfind, 1, "[offline] ['u'] Read and Search for valid known tag (in offline mode it you can load first then search) \n\t\t-- 'u' to search for unknown tags"}, {"sim", CmdLFSim, 0, "[GAP] -- Simulate LF tag from buffer with optional GAP (in microseconds)"}, - {"simask", CmdLFaskSim, 0, "[clock] [invert <1|0>] [manchester/raw <'m'|'r'>] [msg separator 's'] [d ] -- Simulate LF ASK tag from demodbuffer or input"}, - {"simfsk", CmdLFfskSim, 0, "[c ] [i] [H ] [L ] [d ] -- Simulate LF FSK tag from demodbuffer or input"}, - {"simpsk", CmdLFpskSim, 0, "[1|2|3] [c ] [i] [r ] [d ] -- Simulate LF PSK tag from demodbuffer or input"}, + {"simask", CmdLFaskSim, 0, "[clock] [invert <1|0>] [biphase/manchester/raw <'b'|'m'|'r'>] [msg separator 's'] [d ] \n\t\t-- Simulate LF ASK tag from demodbuffer or input"}, + {"simfsk", CmdLFfskSim, 0, "[c ] [i] [H ] [L ] [d ] \n\t\t-- Simulate LF FSK tag from demodbuffer or input"}, + {"simpsk", CmdLFpskSim, 0, "[1|2|3] [c ] [i] [r ] [d ] \n\t\t-- Simulate LF PSK tag from demodbuffer or input"}, {"simbidir", CmdLFSimBidir, 0, "Simulate LF tag (with bidirectional data transmission between reader and tag)"}, {"snoop", CmdLFSnoop, 0, "['l'|'h'|] [trigger threshold]-- Snoop LF (l:125khz, h:134khz)"}, - {"ti", CmdLFTI, 1, "{ TI RFIDs... }"}, - {"hitag", CmdLFHitag, 1, "{ Hitag tags and transponders... }"}, {"vchdemod", CmdVchDemod, 1, "['clone'] -- Demodulate samples for VeriChip"}, - {"t55xx", CmdLFT55XX, 1, "{ T55xx RFIDs... }"}, - {"pcf7931", CmdLFPCF7931, 1, "{PCF7931 RFIDs...}"}, {NULL, NULL, 0, NULL} }; -int CmdLF(const char *Cmd) -{ +int CmdLF(const char *Cmd) { + clearCommandBuffer(); CmdsParse(CommandTable, Cmd); return 0; } -int CmdHelp(const char *Cmd) -{ +int CmdHelp(const char *Cmd) { CmdsHelp(CommandTable); return 0; }