// Low frequency commands
//-----------------------------------------------------------------------------
#include "cmdlf.h"
+
+bool g_lf_threshold_set = FALSE;
+
static int CmdHelp(const char *Cmd);
int usage_lf_cmdread(void) {
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("Snoop low frequence signal. Use 'lf config' to set parameters.");
+ PrintAndLog("Usage: lf snoop [h]");
PrintAndLog("Options:");
- PrintAndLog(" h This help");
- PrintAndLog("This function takes no arguments. ");
- PrintAndLog("Use 'lf config' to set parameters.");
+ PrintAndLog(" h This help");
return 0;
}
int usage_lf_config(void) {
bool useHighFreq = FALSE;
uint16_t one = 0, zero = 0;
uint8_t cmdp = 0;
- int strLength = 0;
UsbCommand c = {CMD_MOD_THEN_ACQUIRE_RAW_ADC_SAMPLES_125K, {0,0,0}};
while(param_getchar(Cmd, cmdp) != 0x00) {
cmdp++;
break;
case 'c':
- strLength = param_getstr(Cmd, cmdp+1, (char *)&c.d.asBytes);
+ param_getstr(Cmd, cmdp+1, (char *)&c.d.asBytes);
cmdp+=2;
break;
case 'd':
if (errors) return usage_lf_cmdread();
// zero and one lengths
- c.arg[1] = zero << 16 | one;
+ c.arg[1] = (uint32_t)(zero << 16 | one);
// add frequency 125 or 134
c.arg[2] = useHighFreq;
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;
+#define LONG_WAIT 100
+ int i, j, start, bit, sum;
+ int phase = 0;
+
+ for (i = 0; i < GraphTraceLen; ++i)
+ GraphBuffer[i] = (GraphBuffer[i] < 0) ? -1 : 1;
+
+ 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);
+ }
- 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);
- }
- }
+ for (bit = 0; bit < 64; bit++) {
+ 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;
+ 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;
+ for (j = 0; j < 32; j++) {
+ GraphBuffer[i++] = phase;
+ phase = !phase;
+ }
+ }
+ RepaintGraphWindow();
+ return 0;
}
int CmdIndalaDemod(const char *Cmd)
{
+ // PSK1, Bitrate 32,
+
// 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;
+
+ int rawbit = 0, 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)
count = 0;
}
}
+ if ( rawbit<1 ) return 0;
- if ( rawbit>0 ){
+ if (g_debugMode) {
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
}
if (start == rawbit - uidlen + 1) {
- PrintAndLog("nothing to wait for");
+ if (g_debugMode) PrintAndLog("nothing to wait for");
return 0;
}
// Inverting signal if needed
if (first == 1) {
- for (i = start; i < rawbit; i++) {
+ for (i = start; i < rawbit; i++)
rawbits[i] = !rawbits[i];
- }
}
// Dumping UID
times += 1;
}
- PrintAndLog("Occurrences: %d (expected %d)", times, (rawbit - start) / uidlen);
+ if (g_debugMode) 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)
return 1;
}
-int CmdIndalaClone(const char *Cmd)
-{
- UsbCommand c;
+int CmdIndalaClone(const char *Cmd){
+ 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;
- }
+ 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;
+ SendCommand(&c);
+ return 0;
}
-int CmdLFSetConfig(const char *Cmd)
-{
+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
uint8_t unsigned_trigg = 0;
uint8_t cmdp = 0;
- while(param_getchar(Cmd, cmdp) != 0x00)
- {
- switch(param_getchar(Cmd, cmdp))
- {
+ while(param_getchar(Cmd, cmdp) != 0x00) {
+ switch(param_getchar(Cmd, cmdp)) {
case 'h':
return usage_lf_config();
case 'H':
cmdp++;
break;
case 'q':
- errors |= param_getdec(Cmd,cmdp+1,&divisor);
+ errors |= param_getdec(Cmd, cmdp+1, &divisor);
cmdp+=2;
break;
case 't':
- errors |= param_getdec(Cmd,cmdp+1,&unsigned_trigg);
+ errors |= param_getdec(Cmd, cmdp+1, &unsigned_trigg);
cmdp+=2;
- if(!errors) trigger_threshold = unsigned_trigg;
+ if(!errors) {
+ trigger_threshold = unsigned_trigg;
+ g_lf_threshold_set = (trigger_threshold > 0);
+ }
break;
case 'b':
- errors |= param_getdec(Cmd,cmdp+1,&bps);
+ errors |= param_getdec(Cmd, cmdp+1, &bps);
cmdp+=2;
break;
case 'd':
- errors |= param_getdec(Cmd,cmdp+1,&decimation);
+ errors |= param_getdec(Cmd, cmdp+1, &decimation);
cmdp+=2;
break;
case 'a':
- averaging = param_getchar(Cmd,cmdp+1) == '1';
+ averaging = param_getchar(Cmd, cmdp+1) == '1';
cmdp+=2;
break;
default:
//Validations
if (errors) return usage_lf_config();
- //Bps is limited to 8, so fits in lower half of arg1
+ //Bps is limited to 8
if (bps >> 4) bps = 8;
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));
+ UsbCommand c = {CMD_SET_LF_SAMPLING_CONFIG, {0,0,0} };
+ memcpy(c.d.asBytes, &config, sizeof(sample_config));
clearCommandBuffer();
SendCommand(&c);
return 0;
}
-int CmdLFRead(const char *Cmd)
-{
- bool arg1 = false;
- uint8_t cmdp = param_getchar(Cmd, 0);
+int CmdLFRead(const char *Cmd) {
- if ( cmdp == 'h' || cmdp == 'H') return usage_lf_read();
+ if (offline) return 0;
- //suppress print
- if ( cmdp == 's' || cmdp == 'S') arg1 = true;
+ bool errors = FALSE;
+ bool arg1 = FALSE;
+ uint8_t cmdp = 0;
+ while(param_getchar(Cmd, cmdp) != 0x00) {
+ switch(param_getchar(Cmd, cmdp)) {
+ case 'h':
+ case 'H':
+ return usage_lf_read();
+ case 's':
+ case 'S':
+ arg1 = TRUE;
+ cmdp++;
+ break;
+ default:
+ PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
+ errors = TRUE;
+ break;
+ }
+ if(errors) break;
+ }
+
+ //Validations
+ if (errors) return usage_lf_read();
UsbCommand c = {CMD_ACQUIRE_RAW_ADC_SAMPLES_125K, {arg1,0,0}};
clearCommandBuffer();
SendCommand(&c);
- if ( !WaitForResponseTimeout(CMD_ACK,NULL,2500) ) {
- PrintAndLog("command execution time out");
- return 1;
+ 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;
}
-int CmdLFSnoop(const char *Cmd)
-{
+int CmdLFSnoop(const char *Cmd) {
uint8_t cmdp = param_getchar(Cmd, 0);
if(cmdp == 'h' || cmdp == 'H') return usage_lf_snoop();
- UsbCommand c = {CMD_LF_SNOOP_RAW_ADC_SAMPLES};
+ UsbCommand c = {CMD_LF_SNOOP_RAW_ADC_SAMPLES,{0,0,0}};
clearCommandBuffer();
SendCommand(&c);
WaitForResponse(CMD_ACK,NULL);
+ getSamples("", false);
return 0;
}
-static void ChkBitstream(const char *str)
-{
- int i;
-
- /* convert to bitstream if necessary */
- for (i = 0; i < (int)(GraphTraceLen / 2); i++){
+static void ChkBitstream(const char *str) {
+ // convert to bitstream if necessary
+ for (int 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.
-int CmdLFSim(const char *Cmd)
-{
+int CmdLFSim(const char *Cmd) {
int i,j;
static int gap;
// convert to bitstream if necessary
ChkBitstream(Cmd);
+ if (g_debugMode)
+ printf("DEBUG: Sending [%d bytes]\n", GraphTraceLen);
+
//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}};
- for (j = 0; j < USB_CMD_DATA_SIZE; j++) {
+ for (j = 0; j < USB_CMD_DATA_SIZE; j++)
c.d.asBytes[j] = GraphBuffer[i+j];
- }
+
clearCommandBuffer();
SendCommand(&c);
- WaitForResponse(CMD_ACK,NULL);
+ WaitForResponse(CMD_ACK, NULL);
printf(".");
}
- PrintAndLog("\nStarting to simulate");
+ PrintAndLog("Simulating");
+
UsbCommand c = {CMD_SIMULATE_TAG_125K, {GraphTraceLen, gap, 0}};
clearCommandBuffer();
SendCommand(&c);
int dataLen = 0;
uint8_t cmdp = 0;
- while(param_getchar(Cmd, cmdp) != 0x00)
- {
- switch(param_getchar(Cmd, cmdp))
- {
+ while(param_getchar(Cmd, cmdp) != 0x00) {
+ switch(param_getchar(Cmd, cmdp)){
case 'h':
return usage_lf_simfsk();
case 'i':
while(param_getchar(Cmd, cmdp) != 0x00) {
switch(param_getchar(Cmd, cmdp)) {
+ case 'H':
case 'h': return usage_lf_simask();
case 'i':
invert = 1;
setDemodBuf(data, dataLen, 0);
}
if (clk == 0) clk = 64;
- if (encoding == 0) clk = clk/2; //askraw needs to double the clock speed
+ if (encoding == 0) clk >>= 2; //askraw needs to double the clock speed
size_t size = DemodBufferLen;
// 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);
+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;
+ }
+ // No args
+ if (cmdp == 0 && DemodBufferLen == 0)
+ errors = TRUE;
+
+ //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;
- return 0;
+ 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;
+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;
}
-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;
+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, j, sum = 0;
+
+ // It does us no good to find the sync pattern, with fewer than 2048 samples after it.
+
+ for (i = 0; i < (GraphTraceLen - 2048); i++) {
+ 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, worstPos = 0;
+
+ for (i = 0; i < 2048; i += 8) {
+ sum = 0;
+ 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);
+
+ // clone
+ if (strcmp(Cmd, "clone")==0) {
+ GraphTraceLen = 0;
+ char *s;
+ for(s = bits; *s; s++) {
+ for(j = 0; j < 16; j++) {
+ GraphBuffer[GraphTraceLen++] = (*s == '1') ? 1 : 0;
+ }
+ }
+ RepaintGraphWindow();
+ }
+ return 0;
+}
+
+
+//by marshmellow
+int CheckChipset(bool getDeviceData) {
+
+ if (!getDeviceData) return 0;
+
+ uint32_t word = 0;
+ save_restoreGB(1);
+
+ //check for em4x05/em4x69 chips first
+ if (EM4x05IsBlock0(&word)) {
+ save_restoreGB(0);
+ PrintAndLog("\nValid EM4x05/EM4x69 Chipset found\nTry `lf em 4x05` commands\n");
+ return 1;
+ }
+
+ //TODO check for t55xx chip...
+ // if ( t55xxIsBlock0(() {
+ // save_restoreGB(0);
+ // PrintAndLog("\nValid T55xx Chipset found\nTry `lf t55xx` commands\n");
+ // return 1;
+ // }
+
+ save_restoreGB(0);
+ return 0;
}
//by marshmellow
int CmdLFfind(const char *Cmd) {
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') return usage_lf_find();
- if (!offline && (cmdp != '1')){
+ bool getDeviceData = (!offline && (cmdp != '1') );
+
+ if (getDeviceData) {
CmdLFRead("s");
- getSamples("30000",false);
- } else if (GraphTraceLen < 1000) {
+ getSamples("30000", false);
+ } else if (GraphTraceLen < minLength) {
PrintAndLog("Data in Graphbuffer was too small.");
return 0;
}
PrintAndLog("False Positives ARE possible\n");
PrintAndLog("\nChecking for known tags:\n");
+ size_t testLen = minLength;
+
+ // only run these tests if device is online
+ if (getDeviceData) {
+
+ // only run if graphbuffer is just noise as it should be for hitag/cotag
+ if (graphJustNoise(GraphBuffer, testLen)) {
+
+ if (CheckChipset(getDeviceData) )
+ return 1;
+
+ ans=CmdLFHitagReader("26");
+ if (ans==0)
+ return 1;
+
+ ans=CmdCOTAGRead("");
+ if (ans>0){
+ PrintAndLog("\nValid COTAG ID Found!");
+ return 1;
+ }
+ PrintAndLog("Signal looks just like noise. Quitting.");
+ return 0;
+ }
+ }
+
+ // identify chipset
+ CheckChipset(getDeviceData);
+
ans=CmdFSKdemodIO("");
if (ans>0) {
PrintAndLog("\nValid IO Prox ID Found!");
PrintAndLog("\nValid NexWatch ID Found!");
return 1;
}
+ ans=CmdPSKIdteck("");
+ if (ans>0) {
+ PrintAndLog("\nValid Idteck ID Found!");
+ return 1;
+ }
ans=CmdJablotronDemod("");
if (ans>0) {
PrintAndLog("\nValid Jablotron ID Found!");
PrintAndLog("\nValid NEDAP ID Found!");
return 1;
}
- // TIdemod?
-
+ ans=CmdVisa2kDemod("");
+ if (ans>0) {
+ PrintAndLog("\nValid Visa2000 ID Found!");
+ return 1;
+ }
+ ans=CmdNoralsyDemod("");
+ if (ans>0) {
+ PrintAndLog("\nValid Noralsy ID Found!");
+ return 1;
+ }
+ ans=CmdPrescoDemod("");
+ if (ans>0) {
+ PrintAndLog("\nValid Presco ID Found!");
+ return 1;
+ }
+ // TIdemod?
PrintAndLog("\nNo Known Tags Found!\n");
if (testRaw=='u' || testRaw=='U'){
//test unknown tag formats (raw mode)
return 0;
}
-static command_t CommandTable[] =
-{
+static command_t CommandTable[] = {
{"help", CmdHelp, 1, "This help"},
+ {"animal", CmdLFFdx, 1, "{ Animal RFIDs... }"},
{"awid", CmdLFAWID, 1, "{ AWID RFIDs... }"},
- {"em4x", CmdLFEM4X, 1, "{ EM4X RFIDs... }"},
+ {"cotag", CmdLFCOTAG, 1, "{ COTAG RFIDs... }"},
+ {"em", CmdLFEM4X, 1, "{ EM4X RFIDs... }"},
{"guard", CmdLFGuard, 1, "{ Guardall RFIDs... }"},
{"hid", CmdLFHID, 1, "{ HID RFIDs... }"},
{"hitag", CmdLFHitag, 1, "{ HITAG RFIDs... }"},
+// {"indala", CmdLFIndala, 1, "{ Indala RFIDs... }"},
{"io", CmdLFIO, 1, "{ IOPROX RFIDs... }"},
- {"jablotron", CmdLFJablotron, 1, "{ JABLOTRON RFIDs... }"},
- {"nedap", CmdLFNedap, 1, "{ NEDAP RFIDs... }"},
+ {"jablotron", CmdLFJablotron, 1, "{ Jablotron RFIDs... }"},
+ {"nedap", CmdLFNedap, 1, "{ Nedap RFIDs... }"},
+ {"noralsy", CmdLFNoralsy, 1, "{ Noralsy 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... }"},
+ {"visa2000", CmdLFVisa2k, 1, "{ Visa2000 RFIDs... }"},
{"config", CmdLFSetConfig, 0, "Set config for LF sampling, bit/sample, decimation, frequency"},
{"cmdread", CmdLFCommandRead, 0, "<off period> <'0' period> <'1' period> <command> ['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"},
{"simfsk", CmdLFfskSim, 0, "[c <clock>] [i] [H <fcHigh>] [L <fcLow>] [d <hexdata>] \n\t\t-- Simulate LF FSK tag from demodbuffer or input"},
{"simpsk", CmdLFpskSim, 0, "[1|2|3] [c <clock>] [i] [r <carrier>] [d <raw hex to sim>] \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'|<divisor>] [trigger threshold]-- Snoop LF (l:125khz, h:134khz)"},
+ {"snoop", CmdLFSnoop, 0, "Snoop LF"},
{"vchdemod", CmdVchDemod, 1, "['clone'] -- Demodulate samples for VeriChip"},
{NULL, NULL, 0, NULL}
};
projects / proxmark3-svn / blobdiff