X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/40148ab609cdcf58ae6ef517c319a758006e1c6d..dda5a928f0a598f21ee01396eae9b2c6da603f11:/client/cmdlf.c?ds=sidebyside diff --git a/client/cmdlf.c b/client/cmdlf.c index 2215aff6..2e786943 100644 --- a/client/cmdlf.c +++ b/client/cmdlf.c @@ -13,359 +13,436 @@ #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" // for psk2TOpsk1 +#include "util.h" // for parsing cli command utils +#include "ui.h" // for show graph controls +#include "graph.h" // for graph data +#include "cmdparser.h" // for getting cli commands included in cmdmain.h +#include "cmdmain.h" // for sending cmds to device +#include "data.h" // for GetFromBigBuf +#include "cmddata.h" // for `lf search` +#include "cmdlfawid.h" // for awid menu +#include "cmdlfem4x.h" // for em4x menu +#include "cmdlfhid.h" // for hid menu +#include "cmdlfhitag.h" // for hitag menu +#include "cmdlfio.h" // for ioprox menu +#include "cmdlft55xx.h" // for t55xx menu +#include "cmdlfti.h" // for ti menu +#include "cmdlfpresco.h" // for presco menu +#include "cmdlfpcf7931.h"// for pcf7931 menu +#include "cmdlfpyramid.h"// for pyramid menu +#include "cmdlfviking.h" // for viking menu +#include "cmdlfcotag.h" // for COTAG menu + +bool g_lf_threshold_set = false; static int CmdHelp(const char *Cmd); + + +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"); + PrintAndLog(" z time period ZERO"); + PrintAndLog(" o time period ONE"); + PrintAndLog(" c Command bytes"); + PrintAndLog(" ************* All periods in microseconds"); + 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; +} + /* send a 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; + //uint8_t divisor = 95; //125khz + uint8_t cmdp = 0; + while(param_getchar(Cmd, cmdp) != 0x00) + { + switch(param_getchar(Cmd, cmdp)) + { + case 'h': + return usage_lf_cmdread(); + case 'H': + //divisor = 88; + dummy[1]='h'; + cmdp++; + break; + case 'L': + cmdp++; + break; + case 'c': + 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; - dummy[0]= ' '; + //Validations + if(errors) return usage_lf_cmdread(); + + // in case they specified 'H' + strcpy((char *)&c.d.asBytes + strlen((char *)c.d.asBytes), dummy); - 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); - SendCommand(&c); - return 0; + 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; - } - } - -#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 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; 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 - - int state = -1; - int count = 0; - int i, j; - - // worst case with GraphTraceLen=64000 is < 4096 - // under normal conditions it's < 2048 - - uint8_t rawbits[4096]; - int rawbit = 0; - int worst = 0, worstPos = 0; - // PrintAndLog("Expecting a bit less than %d raw bits", GraphTraceLen / 32); - for (i = 0; i < GraphTraceLen-1; i += 2) { - count += 1; - if ((GraphBuffer[i] > GraphBuffer[i + 1]) && (state != 1)) { - if (state == 0) { - for (j = 0; j < count - 8; j += 16) { - rawbits[rawbit++] = 0; - } - if ((abs(count - j)) > worst) { - worst = abs(count - j); - worstPos = i; - } - } - state = 1; - count = 0; - } else if ((GraphBuffer[i] < GraphBuffer[i + 1]) && (state != 0)) { - if (state == 1) { - for (j = 0; j < count - 8; j += 16) { - rawbits[rawbit++] = 1; - } - if ((abs(count - j)) > worst) { - worst = abs(count - j); - worstPos = i; - } - } - state = 0; - count = 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); + // Usage: recover 64bit UID by default, specify "224" as arg to recover a 224bit UID + + int state = -1; + int count = 0; + int i, j; + + // worst case with GraphTraceLen=64000 is < 4096 + // under normal conditions it's < 2048 + + uint8_t rawbits[4096]; + int rawbit = 0; + int worst = 0, worstPos = 0; + // 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; + } + if ((abs(count - j)) > worst) { + worst = abs(count - j); + worstPos = i; + } + } + 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; + } + if ((abs(count - j)) > worst) { + worst = abs(count - j); + worstPos = i; + } + } + state = 0; + count = 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 { return 0; } - // Finding the start of a UID - int uidlen, long_wait; - if (strcmp(Cmd, "224") == 0) { - uidlen = 224; - long_wait = 30; - } else { - uidlen = 64; - long_wait = 29; - } - - int start; - int first = 0; - for (start = 0; start <= rawbit - uidlen; start++) { - first = rawbits[start]; - for (i = start; i < start + long_wait; i++) { - if (rawbits[i] != first) { - break; - } - } - if (i == (start + long_wait)) { - break; - } - } - - if (start == rawbit - uidlen + 1) { - PrintAndLog("nothing to wait for"); - return 0; - } - - // Inverting signal if needed - if (first == 1) { - for (i = start; i < rawbit; i++) { - rawbits[i] = !rawbits[i]; - } - } - - // Dumping UID + // Finding the start of a UID + int uidlen, long_wait; + if (strcmp(Cmd, "224") == 0) { + uidlen = 224; + long_wait = 30; + } else { + uidlen = 64; + long_wait = 29; + } + + int start; + int first = 0; + for (start = 0; start <= rawbit - uidlen; start++) { + first = rawbits[start]; + for (i = start; i < start + long_wait; i++) { + if (rawbits[i] != first) { + break; + } + } + if (i == (start + long_wait)) { + break; + } + } + + if (start == rawbit - uidlen + 1) { + PrintAndLog("nothing to wait for"); + return 0; + } + + // Inverting signal if needed + if (first == 1) { + for (i = start; i < rawbit; i++) { + rawbits[i] = !rawbits[i]; + } + } + + // Dumping UID uint8_t bits[224] = {0x00}; char showbits[225] = {0x00}; - int bit; - i = start; - int times = 0; + int bit; + i = start; + int times = 0; + + if (uidlen > rawbit) { + PrintAndLog("Warning: not enough raw bits to get a full UID"); + for (bit = 0; bit < rawbit; bit++) { + bits[bit] = rawbits[i++]; + // As we cannot know the parity, let's use "." and "/" + showbits[bit] = '.' + bits[bit]; + } + showbits[bit+1]='\0'; + PrintAndLog("Partial UID=%s", showbits); + return 0; + } else { + for (bit = 0; bit < uidlen; bit++) { + bits[bit] = rawbits[i++]; + showbits[bit] = '0' + bits[bit]; + } + times = 1; + } - if (uidlen > rawbit) { - PrintAndLog("Warning: not enough raw bits to get a full UID"); - for (bit = 0; bit < rawbit; bit++) { - bits[bit] = rawbits[i++]; - // As we cannot know the parity, let's use "." and "/" - showbits[bit] = '.' + bits[bit]; - } - showbits[bit+1]='\0'; - PrintAndLog("Partial UID=%s", showbits); - return 0; - } else { - for (bit = 0; bit < uidlen; bit++) { - bits[bit] = rawbits[i++]; - showbits[bit] = '0' + bits[bit]; - } - times = 1; - } - - //convert UID to HEX - uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7; - int idx; + //convert UID to HEX + uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7; + int idx; uid1 = uid2 = 0; - 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; - } - } - PrintAndLog("UID=%s (%x%08x)", showbits, uid1, uid2); - } - else { + 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; + } + } + PrintAndLog("UID=%s (%x%08x)", showbits, uid1, uid2); + } + 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); + 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); 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); - } + } + 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; + // Checking UID against next occurrences + int failed = 0; for (; i + uidlen <= rawbit;) { failed = 0; - for (bit = 0; bit < uidlen; bit++) { - if (bits[bit] != rawbits[i++]) { - failed = 1; - break; - } - } - if (failed == 1) { - break; - } - times += 1; - } - - PrintAndLog("Occurrences: %d (expected %d)", times, (rawbit - start) / uidlen); - - // Remodulating for tag cloning + for (bit = 0; bit < uidlen; bit++) { + if (bits[bit] != rawbits[i++]) { + failed = 1; + break; + } + } + if (failed == 1) { + break; + } + times += 1; + } + + PrintAndLog("Occurrences: %d (expected %d)", times, (rawbit - start) / uidlen); + + // 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; - i = 0; - int phase = 0; - for (bit = 0; bit < uidlen; bit++) { - if (bits[bit] == 0) { - phase = 0; - } else { - phase = 1; - } - int j; - for (j = 0; j < 32; j++) { - GraphBuffer[i++] = phase; - phase = !phase; - } - } - - RepaintGraphWindow(); - return 1; + GraphTraceLen = 32*uidlen; + i = 0; + int phase = 0; + for (bit = 0; bit < uidlen; bit++) { + if (bits[bit] == 0) { + phase = 0; + } else { + phase = 1; + } + int j; + for (j = 0; j < 32; j++) { + GraphBuffer[i++] = phase; + phase = !phase; + } + } + + RepaintGraphWindow(); + return 1; } 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; + 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 usage_lf_read() +int usage_lf_read(void) { 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() +int usage_lf_snoop(void) { PrintAndLog("Usage: lf snoop"); PrintAndLog("Options: "); @@ -375,7 +452,7 @@ int usage_lf_snoop() return 0; } -int usage_lf_config() +int usage_lf_config(void) { PrintAndLog("Usage: lf config [H|] [b ] [d ] [a 0|1]"); PrintAndLog("Options: "); @@ -386,7 +463,7 @@ int usage_lf_config() 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(" t Sets trigger threshold. 0 means no threshold (range: 0-128)"); PrintAndLog("Examples:"); PrintAndLog(" lf config b 8 L"); PrintAndLog(" Samples at 125KHz, 8bps."); @@ -433,7 +510,10 @@ int CmdLFSetConfig(const char *Cmd) case 't': errors |= param_getdec(Cmd,cmdp+1,&unsigned_trigg); cmdp+=2; - if(!errors) trigger_threshold = unsigned_trigg; + if(!errors) { + trigger_threshold = unsigned_trigg; + if (trigger_threshold > 0) g_lf_threshold_set = true; + } break; case 'b': errors |= param_getdec(Cmd,cmdp+1,&bps); @@ -465,7 +545,7 @@ int CmdLFSetConfig(const char *Cmd) 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 @@ -473,22 +553,33 @@ int CmdLFSetConfig(const char *Cmd) //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; - if(param_getchar(Cmd, cmdp) == 'h') + if (offline) return 0; + 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 - UsbCommand c = {CMD_ACQUIRE_RAW_ADC_SAMPLES_125K}; + UsbCommand c = {CMD_ACQUIRE_RAW_ADC_SAMPLES_125K, {arg1,0,0}}; + clearCommandBuffer(); SendCommand(&c); - WaitForResponse(CMD_ACK,NULL); + if (g_lf_threshold_set) { + WaitForResponse(CMD_ACK,NULL); + } else { + if ( !WaitForResponseTimeout(CMD_ACK,NULL,2500) ) { + PrintAndLog("command execution time out"); + return 1; + } + } return 0; } @@ -501,6 +592,7 @@ int CmdLFSnoop(const char *Cmd) } UsbCommand c = {CMD_LF_SNOOP_RAW_ADC_SAMPLES}; + clearCommandBuffer(); SendCommand(&c); WaitForResponse(CMD_ACK,NULL); return 0; @@ -508,501 +600,711 @@ int CmdLFSnoop(const char *Cmd) static void ChkBitstream(const char *str) { - int i; - - /* convert to bitstream if necessary */ + int i; + + /* convert to bitstream if necessary */ for (i = 0; i < (int)(GraphTraceLen / 2); i++){ if (GraphBuffer[i] > 1 || GraphBuffer[i] < 0) { - CmdBitstream(str); - break; - } - } + CmdGetBitStream(""); + break; + } + } } -//appears to attempt to simulate manchester +//Attempt to simulate any wave in buffer (one bit per output sample) +// converts GraphBuffer to bitstream (based on zero crossings) if needed. int CmdLFSim(const char *Cmd) { int i,j; - static int gap; + static int gap; + + sscanf(Cmd, "%i", &gap); - sscanf(Cmd, "%i", &gap); + // convert to bitstream if necessary - /* convert to bitstream if necessary */ - ChkBitstream(Cmd); + ChkBitstream(Cmd); - //can send 512 bits at a time (1 byte sent per bit...) + //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]; - } - SendCommand(&c); - WaitForResponse(CMD_ACK,NULL); + c.d.asBytes[j] = GraphBuffer[i+j]; + } + SendCommand(&c); + WaitForResponse(CMD_ACK,NULL); printf("."); - } + } printf("\n"); PrintAndLog("Starting to simulate"); - UsbCommand c = {CMD_SIMULATE_TAG_125K, {GraphTraceLen, gap, 0}}; - SendCommand(&c); - return 0; + 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"); - return 0; + //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] [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(" m sim ask/manchester"); - 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; + //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 add t55xx Sequence Terminator gap - default: no gaps (only manchester)"); + 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 +// by marshmellow - sim fsk data given clock, fcHigh, fcLow, invert // - allow pull data from DemodBuffer int CmdLFfskSim(const char *Cmd) { - //todo - allow data from demodbuffer or parameters - //might be able to autodetect FC and clock from Graphbuffer if using demod buffer - //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){ - uint8_t ans = fskClocks(&fcHigh, &fcLow, &clk, 0); - if (ans==0){ - fcHigh=10; - fcLow=8; - clk=50; - } - } - } else { - setDemodBuf(data, dataLen, 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; - UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, DemodBufferLen}}; - if (DemodBufferLen > USB_CMD_DATA_SIZE) { - PrintAndLog("DemodBuffer too long for current implementation - length: %d - max: %d", DemodBufferLen, USB_CMD_DATA_SIZE); - } - memcpy(c.d.asBytes, DemodBuffer, DemodBufferLen); - SendCommand(&c); - return 0; + //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); + } + + //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); + 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) { - //todo - allow data from demodbuffer or parameters - //autodetect clock from Graphbuffer if using demod buffer - //will need clock, invert, manchester/raw as m or r, separator as s, and bitstream - uint8_t manchester = 1, separator = 0; - //char cmdp = Cmd[0], par3='m', par4=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 'm': - manchester=1; - cmdp++; - break; - case 'r': - manchester=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; - - uint16_t arg1, arg2; - arg1 = clk << 8 | manchester; - arg2 = invert << 8 | separator; - UsbCommand c = {CMD_ASK_SIM_TAG, {arg1, arg2, DemodBufferLen}}; - if (DemodBufferLen > USB_CMD_DATA_SIZE) { - PrintAndLog("DemodBuffer too long for current implementation - length: %d - max: %d", DemodBufferLen, USB_CMD_DATA_SIZE); - } - PrintAndLog("preparing to sim ask data: %d bits", DemodBufferLen); - memcpy(c.d.asBytes, DemodBuffer, DemodBufferLen); - SendCommand(&c); - return 0; + //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); + 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); + 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; } -/* simulate an LF Manchester encoded tag with specified bitstream, clock rate and inter-id gap */ -int CmdLFSimManchester(const char *Cmd) +int CmdVchDemod(const char *Cmd) { - static int clock, gap; - static char data[1024], gapstring[8]; + // 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, + }; - sscanf(Cmd, "%i %s %i", &clock, &data[0], &gap); + // 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); - ClearGraph(0); + char bits[257]; + bits[256] = '\0'; - for (int i = 0; i < strlen(data) ; ++i) - AppendGraph(0, clock, data[i]- '0'); + int worst = INT_MAX; + int worstPos = 0; - CmdManchesterMod(""); + 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; +} - RepaintGraphWindow(); - sprintf(&gapstring[0], "%i", gap); - CmdLFSim(gapstring); - return 0; -} +//by marshmellow +int CheckChipType(char cmdp) { + uint32_t wordData = 0; + + //check for em4x05/em4x69 chips first + save_restoreGB(1); + if ((!offline && (cmdp != '1')) && EM4x05Block0Test(&wordData)) { + PrintAndLog("\nValid EM4x05/EM4x69 Chip Found\nTry lf em 4x05... commands\n"); + save_restoreGB(0); + return 1; + } + //TODO check for t55xx chip... -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; + save_restoreGB(0); + return 1; } //by marshmellow int CmdLFfind(const char *Cmd) { - int ans=0; - char cmdp = param_getchar(Cmd, 0); - char testRaw = param_getchar(Cmd, 1); - if (strlen(Cmd) > 2 || 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 (!offline && (cmdp != '1')){ - ans=CmdLFRead(""); - ans=CmdSamples("20000"); - } else if (GraphTraceLen < 1000) { - PrintAndLog("Data in Graphbuffer was too small."); - return 0; - } - if (cmdp == 'u' || cmdp == 'U') testRaw = 'u'; - PrintAndLog("NOTE: some demods output possible binary\n if it finds something that looks like a tag"); - PrintAndLog("False Positives ARE possible\n"); - PrintAndLog("\nChecking for known tags:\n"); - ans=CmdFSKdemodIO(""); - if (ans>0) { - PrintAndLog("\nValid IO Prox ID Found!"); - return 1; - } - ans=CmdFSKdemodPyramid(""); - if (ans>0) { - PrintAndLog("\nValid Pyramid ID Found!"); - return 1; - } - ans=CmdFSKdemodParadox(""); - if (ans>0) { - PrintAndLog("\nValid Paradox ID Found!"); - return 1; - } - ans=CmdFSKdemodAWID(""); - if (ans>0) { - PrintAndLog("\nValid AWID ID Found!"); - return 1; - } - ans=CmdFSKdemodHID(""); - if (ans>0) { - PrintAndLog("\nValid HID Prox ID Found!"); - return 1; - } - //add psk and indala - ans=CmdIndalaDecode(""); - if (ans>0) { - PrintAndLog("\nValid Indala ID Found!"); - return 1; - } - ans=CmdAskEM410xDemod(""); - if (ans>0) { - PrintAndLog("\nValid EM410x ID Found!"); - return 1; - } - PrintAndLog("\nNo Known Tags Found!\n"); - if (testRaw=='u' || testRaw=='U'){ - //test unknown tag formats (raw mode) - PrintAndLog("\nChecking for Unknown tags:\n"); - ans=CmdDetectClockRate("f"); - if (ans != 0){ //fsk - ans=CmdFSKrawdemod(""); - if (ans>0) { - PrintAndLog("\nUnknown FSK Modulated Tag Found!"); - return 1; - } - } - ans=Cmdaskmandemod(""); - if (ans>0) { - PrintAndLog("\nUnknown ASK Modulated and Manchester encoded Tag Found!"); - return 1; - } - ans=CmdPSK1rawDemod(""); - if (ans>0) { - PrintAndLog("Possible unknown PSK1 Modulated Tag Found above!\n\nCould also be PSK2 - try 'data psk2rawdemod'"); - PrintAndLog("\nCould also be PSK3 - [currently not supported]"); - PrintAndLog("\nCould also be NRZ - try 'data nrzrawdemod"); - return 1; - } - PrintAndLog("\nNo Data Found!\n"); - } - return 0; + uint32_t wordData = 0; + int ans=0; + size_t minLength = 1000; + 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 (!offline && (cmdp != '1')){ + CmdLFRead("s"); + getSamples("30000",false); + } else if (GraphTraceLen < minLength) { + PrintAndLog("Data in Graphbuffer was too small."); + return 0; + } + if (cmdp == 'u' || cmdp == 'U') testRaw = 'u'; + + PrintAndLog("NOTE: some demods output possible binary\n if it finds something that looks like a tag"); + PrintAndLog("False Positives ARE possible\n"); + PrintAndLog("\nChecking for known tags:\n"); + + size_t testLen = minLength; + // only run if graphbuffer is just noise as it should be for hitag/cotag + if (graphJustNoise(GraphBuffer, testLen)) { + // only run these tests if we are in online mode + if (!offline && (cmdp != '1')) { + // test for em4x05 in reader talk first mode. + if (EM4x05Block0Test(&wordData)) { + PrintAndLog("\nValid EM4x05/EM4x69 Chip Found\nUse lf em 4x05readword/dump commands to read\n"); + return 1; + } + ans=CmdLFHitagReader("26"); + if (ans==0) { + return 1; + } + ans=CmdCOTAGRead(""); + if (ans>0){ + PrintAndLog("\nValid COTAG ID Found!"); + return 1; + } + } + return 0; + } + + ans=CmdFSKdemodIO(""); + if (ans>0) { + PrintAndLog("\nValid IO Prox ID Found!"); + return CheckChipType(cmdp); + } + + ans=CmdFSKdemodPyramid(""); + if (ans>0) { + PrintAndLog("\nValid Pyramid ID Found!"); + return CheckChipType(cmdp); + } + + ans=CmdFSKdemodParadox(""); + if (ans>0) { + PrintAndLog("\nValid Paradox ID Found!"); + return CheckChipType(cmdp); + } + + ans=CmdFSKdemodAWID(""); + if (ans>0) { + PrintAndLog("\nValid AWID ID Found!"); + return CheckChipType(cmdp); + } + + ans=CmdFSKdemodHID(""); + if (ans>0) { + PrintAndLog("\nValid HID Prox ID Found!"); + return CheckChipType(cmdp); + } + + ans=CmdAskEM410xDemod(""); + if (ans>0) { + PrintAndLog("\nValid EM410x ID Found!"); + return CheckChipType(cmdp); + } + + ans=CmdG_Prox_II_Demod(""); + if (ans>0) { + PrintAndLog("\nValid G Prox II ID Found!"); + return CheckChipType(cmdp); + } + + ans=CmdFDXBdemodBI(""); + if (ans>0) { + PrintAndLog("\nValid FDX-B ID Found!"); + return CheckChipType(cmdp); + } + + ans=EM4x50Read("", false); + if (ans>0) { + PrintAndLog("\nValid EM4x50 ID Found!"); + return 1; + } + + ans=CmdVikingDemod(""); + if (ans>0) { + PrintAndLog("\nValid Viking ID Found!"); + return CheckChipType(cmdp); + } + + ans=CmdIndalaDecode(""); + if (ans>0) { + PrintAndLog("\nValid Indala ID Found!"); + return CheckChipType(cmdp); + } + + ans=CmdPSKNexWatch(""); + if (ans>0) { + PrintAndLog("\nValid NexWatch ID Found!"); + return CheckChipType(cmdp); + } + + PrintAndLog("\nNo Known Tags Found!\n"); + if (testRaw=='u' || testRaw=='U'){ + ans=CheckChipType(cmdp); + //test unknown tag formats (raw mode)0 + PrintAndLog("\nChecking for Unknown tags:\n"); + ans=AutoCorrelate(4000, FALSE, FALSE); + if (ans > 0) PrintAndLog("Possible Auto Correlation of %d repeating samples",ans); + ans=GetFskClock("",FALSE,FALSE); + if (ans != 0){ //fsk + ans=FSKrawDemod("",TRUE); + if (ans>0) { + PrintAndLog("\nUnknown FSK Modulated Tag Found!"); + return 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; + } + ans=CmdPSK1rawDemod(""); + if (ans>0) { + PrintAndLog("Possible unknown PSK1 Modulated Tag Found above!\n\nCould also be PSK2 - try 'data rawdemod p2'"); + PrintAndLog("\nCould also be PSK3 - [currently not supported]"); + PrintAndLog("\nCould also be NRZ - try 'data nrzrawdemod"); + return 1; + } + PrintAndLog("\nNo Data Found!\n"); + } + return 0; } 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)"}, - {"em4x", CmdLFEM4X, 1, "{ EM4X RFIDs... }"}, - {"config", CmdLFSetConfig, 0, "Set config for LF sampling, bit/sample, decimation, frequency"}, - {"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, "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"}, - {"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'>] [trs separator 's'] -- Simulate LF ASK tag from demodbuffer"}, - {"simfsk", CmdLFfskSim, 0, "[invert <1|0>] -- Simulate LF FSK tag from demodbuffer"}, - {"simbidir", CmdLFSimBidir, 0, "Simulate LF tag (with bidirectional data transmission between reader and tag)"}, - {"simman", CmdLFSimManchester, 0, " [GAP] Simulate arbitrary Manchester LF 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} + {"help", CmdHelp, 1, "This help"}, + {"awid", CmdLFAWID, 1, "{ AWID RFIDs... }"}, + {"cotag", CmdLFCOTAG, 1, "{ COTAG RFIDs... }"}, + {"em", CmdLFEM4X, 1, "{ EM4X RFIDs... }"}, + {"hid", CmdLFHID, 1, "{ HID RFIDs... }"}, + {"hitag", CmdLFHitag, 1, "{ Hitag tags and transponders... }"}, + {"io", CmdLFIO, 1, "{ ioProx tags... }"}, + {"presco", CmdLFPresco, 1, "{ Presco RFIDs... }"}, + {"pcf7931", CmdLFPCF7931, 1, "{ PCF7931 RFIDs... }"}, + {"pyramid", CmdLFPyramid, 1, "{ Farpointe/Pyramid RFIDs... }"}, + {"t55xx", CmdLFT55XX, 1, "{ T55xx RFIDs... }"}, + {"ti", CmdLFTI, 1, "{ TI RFIDs... }"}, + {"viking", CmdLFViking, 1, "{ Viking tags... }"}, + {"cmdread", CmdLFCommandRead, 0, " ['H'] -- Modulate LF reader field to send command before read (all periods in microseconds) (option 'H' for 134)"}, + {"config", CmdLFSetConfig, 0, "Set config for LF sampling, bit/sample, decimation, frequency"}, + {"flexdemod", CmdFlexdemod, 1, "Demodulate samples for FlexPass"}, + {"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"}, + {"sim", CmdLFSim, 0, "[GAP] -- Simulate LF tag from buffer with optional GAP (in microseconds)"}, + {"simask", CmdLFaskSim, 0, "[clock] [invert <1|0>] [biphase/manchester/raw <'b'|'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"}, + {"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)"}, + {"vchdemod", CmdVchDemod, 1, "['clone'] -- Demodulate samples for VeriChip"}, + {NULL, NULL, 0, NULL} }; int CmdLF(const char *Cmd) { - CmdsParse(CommandTable, Cmd); - return 0; + CmdsParse(CommandTable, Cmd); + return 0; } int CmdHelp(const char *Cmd) { - CmdsHelp(CommandTable); - return 0; + CmdsHelp(CommandTable); + return 0; }