From f0cf62cd734219c2f8b012a4e3ba42520344bce4 Mon Sep 17 00:00:00 2001 From: iceman1001 Date: Sun, 4 Jan 2015 23:43:07 +0100 Subject: [PATCH] FIX: fixed a little bug I introduced from last commit in fskdemod CHG: tab fixes in cmdlf.c and minor code clean up CHG: minor variable name change, printstatement in cmddata.c --- client/cmddata.c | 10 +- client/cmdlf.c | 749 +++++++++++++++++++++++------------------------ common/lfdemod.c | 2 - 3 files changed, 379 insertions(+), 382 deletions(-) diff --git a/client/cmddata.c b/client/cmddata.c index e9499ed8..8d74750d 100644 --- a/client/cmddata.c +++ b/client/cmddata.c @@ -220,12 +220,12 @@ int Cmdaskmandemod(const char *Cmd) PrintAndLog("ASK/Manchester decoded bitstream:"); printBitStream(bits, len); - uint64_t lo = Em410xDecode(bits, len); - if (lo > 0){ - SetGraphBuf(bits,len); - PrintAndLog("EM410x pattern found: "); - printEM410x(lo); + uint64_t tagid = Em410xDecode(bits, len); + + if (tagid > 0){ + SetGraphBuf(bits, len); + printEM410x(tagid); return 1; } return 0; diff --git a/client/cmdlf.c b/client/cmdlf.c index e445b47b..9a9984d1 100644 --- a/client/cmdlf.c +++ b/client/cmdlf.c @@ -48,385 +48,386 @@ int CmdLFCommandRead(const char *Cmd) 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; - } + #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; + GraphBuffer[start] = 2; + GraphBuffer[start+1] = -2; + uint8_t bits[64] = {0x00}; - uint8_t bits[64]; + int bit, sum; + i = start; + for (bit = 0; bit < 64; bit++) { + sum = 0; + for (int j = 0; j < 16; j++) { + sum += GraphBuffer[i++]; + } - int bit; - i = start; - 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; - } else { - bits[bit] = 0; - } - PrintAndLog("bit %d sum %d", bit, sum); - } + bits[bit] = (sum > 0) ? 1 : 0; - 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); + } - GraphTraceLen = 32*64; - i = 0; - int phase = 0; - for (bit = 0; bit < 64; bit++) { - if (bits[bit] == 0) { - phase = 0; - } else { - phase = 1; - } - int j; - for (j = 0; j < 32; j++) { - GraphBuffer[i++] = phase; - phase = !phase; - } - } + 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); + } + } - RepaintGraphWindow(); - return 0; + // HACK writing back to graphbuffer. + 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 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); - } 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; - } + // Usage: recover 64bit UID by default, specify "224" as arg to recover a 224bit UID - // Inverting signal if needed - if (first == 1) { - for (i = start; i < rawbit; i++) { - rawbits[i] = !rawbits[i]; - } - } + int state = -1; + int count = 0; + int i, j; - // Dumping UID - uint8_t bits[224]; - char showbits[225]; - showbits[uidlen]='\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; - } + // 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; - //convert UID to HEX - uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7; - int idx; - uid1=0; - 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 { - uid3=0; - uid4=0; - uid5=0; - uid6=0; - 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); - 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("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); + } else { + return 0; + } - // Checking UID against next occurrences - for (; i + uidlen <= rawbit;) { - int 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 - 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; - } - } + // 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; + + 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; + 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 { + 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); + + 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; + 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; + } - RepaintGraphWindow(); - return 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; } int CmdIndalaClone(const char *Cmd) { - unsigned int uid1, uid2, uid3, uid4, uid5, uid6, uid7; - UsbCommand c; - uid1=0; - uid2=0; - uid3=0; - uid4=0; - uid5=0; - uid6=0; - 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; - } - 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; - } + 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; + } 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; + SendCommand(&c); + return 0; } int CmdLFRead(const char *Cmd) { - UsbCommand c = {CMD_ACQUIRE_RAW_ADC_SAMPLES_125K}; - // 'h' means higher-low-frequency, 134 kHz - if(*Cmd == 'h') { - c.arg[0] = 1; - } else if (*Cmd == '\0') { - c.arg[0] = 0; - } else if (sscanf(Cmd, "%"lli, &c.arg[0]) != 1) { - PrintAndLog("Samples 1: 'lf read'"); - PrintAndLog(" 2: 'lf read h'"); - PrintAndLog(" 3: 'lf read '"); - return 0; - } - SendCommand(&c); - WaitForResponse(CMD_ACK,NULL); - - // load samples - CmdSamples(""); - // show plot - ShowGraphWindow(); - return 0; + UsbCommand c = {CMD_ACQUIRE_RAW_ADC_SAMPLES_125K}; + + // 'h' means higher-low-frequency, 134 kHz + if(*Cmd == 'h') { + c.arg[0] = 1; + } else if (*Cmd == '\0') { + c.arg[0] = 0; + } else if (sscanf(Cmd, "%"lli, &c.arg[0]) != 1) { + PrintAndLog("Samples 1: 'lf read'"); + PrintAndLog(" 2: 'lf read h'"); + PrintAndLog(" 3: 'lf read '"); + return 0; + } + SendCommand(&c); + WaitForResponse(CMD_ACK,NULL); + + CmdSamples(""); + ShowGraphWindow(); + return 0; } static void ChkBitstream(const char *str) { - 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; - } - } + 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; + } + } } int CmdLFSim(const char *Cmd) { - int i,j; - - static int gap; + int i,j; + static int gap; - sscanf(Cmd, "%i", &gap); + sscanf(Cmd, "%i", &gap); - /* convert to bitstream if necessary */ - ChkBitstream(Cmd); + /* convert to bitstream if necessary */ + ChkBitstream(Cmd); - 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}}; + 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}}; - for (j = 0; j < USB_CMD_DATA_SIZE; j++) { - 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; + for (j = 0; j < USB_CMD_DATA_SIZE; j++) { + 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; } int CmdLFSimBidir(const char *Cmd) { - /* Set ADC to twice the carrier for a slight supersampling */ + // 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; @@ -435,29 +436,23 @@ int CmdLFSimBidir(const char *Cmd) /* simulate an LF Manchester encoded tag with specified bitstream, clock rate and inter-id gap */ int CmdLFSimManchester(const char *Cmd) { - static int clock, gap; - static char data[1024], gapstring[8]; + static int clock, gap; + static char data[1024], gapstring[8]; - /* get settings/bits */ - sscanf(Cmd, "%i %s %i", &clock, &data[0], &gap); + sscanf(Cmd, "%i %s %i", &clock, &data[0], &gap); - /* clear our graph */ - ClearGraph(0); + ClearGraph(0); - /* fill it with our bitstream */ - for (int i = 0; i < strlen(data) ; ++i) - AppendGraph(0, clock, data[i]- '0'); + for (int i = 0; i < strlen(data) ; ++i) + AppendGraph(0, clock, data[i]- '0'); - /* modulate */ - CmdManchesterMod(""); + CmdManchesterMod(""); - /* show what we've done */ - RepaintGraphWindow(); + RepaintGraphWindow(); - /* simulate */ - sprintf(&gapstring[0], "%i", gap); - CmdLFSim(gapstring); - return 0; + sprintf(&gapstring[0], "%i", gap); + CmdLFSim(gapstring); + return 0; } int CmdLFSnoop(const char *Cmd) @@ -474,24 +469,22 @@ int CmdLFSnoop(const char *Cmd) c.arg[0] = 1; sscanf(Cmd, "h %"lli, &c.arg[1]); } else if (sscanf(Cmd, "%"lli" %"lli, &c.arg[0], &c.arg[1]) < 1) { - PrintAndLog("use 'snoop' or 'snoop {l,h} [trigger threshold]', or 'snoop [trigger threshold]'"); + PrintAndLog("usage 1: snoop"); + PrintAndLog(" 2: snoop {l,h} [trigger threshold]"); + PrintAndLog(" 3: snoop [trigger threshold]"); return 0; } SendCommand(&c); WaitForResponse(CMD_ACK,NULL); - size_t BUFF_SIZE = 8000; - uint8_t data[BUFF_SIZE]; + #define BUFF_SIZE 8000 + uint8_t data[BUFF_SIZE] = {0x00}; - GetFromBigBuf(data,BUFF_SIZE,0); //3560 -- should be offset.. + GetFromBigBuf(data,BUFF_SIZE,0); WaitForResponseTimeout(CMD_ACK,NULL, 1500); - for (int j = 0; j < BUFF_SIZE; j++) { - GraphBuffer[j] = ((int)data[j]); - } - - GraphTraceLen = BUFF_SIZE; + SetGraphBuf(data, BUFF_SIZE); return 0; } @@ -596,24 +589,30 @@ int CmdLFfind(const char *Cmd) PrintAndLog("Checking for known tags:"); - ans=Cmdaskmandemod(""); - PrintAndLog("ASK_MAN: %s", (ans)?"YES":"NO" ); + ans = Cmdaskmandemod(""); + PrintAndLog("ASK_MAN: %s", (ans) ? "YES":"NO" ); - ans=CmdFSKdemodHID(""); - PrintAndLog("HID: %s", (ans)?"YES":"NO" ); + ans = CmdFSKdemodHID(""); + PrintAndLog("HID: %s", (ans) ? "YES":"NO" ); - ans=CmdFSKdemodIO(""); - PrintAndLog("IO prox: %s", (ans)?"YES":"NO" ); + ans = CmdFSKdemodIO(""); + PrintAndLog("IO prox: %s", (ans) ? "YES":"NO" ); - ans=CmdIndalaDemod(""); - PrintAndLog("Indala (64): %s", (ans)?"YES":"NO" ); + ans = CmdIndalaDemod(""); + PrintAndLog("Indala (64): %s", (ans) ? "YES":"NO" ); - ans=CmdIndalaDemod("224"); - PrintAndLog("Indala (224): %s", (ans)?"YES":"NO" ); + ans = CmdIndalaDemod("224"); + PrintAndLog("Indala (224): %s", (ans) ? "YES":"NO" ); + // ans = CmdVchDemod(""); + // PrintAndLog("VeriChip: %s", (ans) ? "YES":"NO" ); + + // ans = CmdFlexdemod(""); + // PrintAndLog("FlexPass: %s", (ans) ? "YES":"NO" ); + if (!ans) PrintAndLog("No Known Tags Found!\n"); - + return 0; } diff --git a/common/lfdemod.c b/common/lfdemod.c index 5ab5e03a..873b6305 100644 --- a/common/lfdemod.c +++ b/common/lfdemod.c @@ -538,8 +538,6 @@ int fskdemod(uint8_t *dest, size_t size, uint8_t rfLen, uint8_t invert, uint8_t size = fsk_wave_demod(dest, size, fchigh, fclow); if ( size > 0 ) size = aggregate_bits(dest, size, rfLen, 192, invert, fchigh, fclow); - else - return -1; return size; } -- 2.39.5