#include <string.h>
#include <limits.h>
#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 <delay period> z <zero period> o <one period> c <cmdbytes> [H] ");
+ PrintAndLog("Options: ");
+ PrintAndLog(" h This help");
+ PrintAndLog(" L Low frequency (125 KHz)");
+ PrintAndLog(" H High frequency (134 KHz)");
+ PrintAndLog(" d <delay> delay OFF period");
+ PrintAndLog(" z <zero> time period ZERO");
+ PrintAndLog(" o <one> time period ONE");
+ PrintAndLog(" c <cmd> 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;
- }
-
- //convert UID to HEX
- uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7;
- int idx;
+ 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 {
+ 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(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(void)
+{
+ PrintAndLog("Usage: lf snoop");
+ PrintAndLog("Options: ");
+ PrintAndLog(" h This help");
+ PrintAndLog("This function takes no arguments. ");
+ PrintAndLog("Use 'lf config' to set parameters.");
+ return 0;
+}
+
+int usage_lf_config(void)
+{
+ PrintAndLog("Usage: lf config [H|<divisor>] [b <bps>] [d <decim>] [a 0|1]");
+ PrintAndLog("Options: ");
+ PrintAndLog(" h This help");
+ PrintAndLog(" L Low frequency (125 KHz)");
+ PrintAndLog(" H High frequency (134 KHz)");
+ PrintAndLog(" q <divisor> Manually set divisor. 88-> 134KHz, 95-> 125 Hz");
+ PrintAndLog(" b <bps> Sets resolution of bits per sample. Default (max): 8");
+ PrintAndLog(" d <decim> 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 <threshold> Sets trigger threshold. 0 means no threshold (range: 0-128)");
+ PrintAndLog("Examples:");
+ PrintAndLog(" lf config b 8 L");
+ PrintAndLog(" Samples at 125KHz, 8bps.");
+ PrintAndLog(" lf config H b 4 d 3");
+ PrintAndLog(" Samples at 134KHz, averages three samples into one, stored with ");
+ PrintAndLog(" a resolution of 4 bits per sample.");
+ PrintAndLog(" lf read");
+ PrintAndLog(" Performs a read (active field)");
+ PrintAndLog(" lf snoop");
+ PrintAndLog(" Performs a snoop (no active field)");
+ return 0;
+}
+
+int CmdLFSetConfig(const char *Cmd)
+{
+
+ uint8_t divisor = 0;//Frequency divisor
+ uint8_t bps = 0; // Bits per sample
+ uint8_t decimation = 0; //How many to keep
+ bool averaging = 1; // Defaults to true
+ bool errors = FALSE;
+ int trigger_threshold =-1;//Means no change
+ uint8_t unsigned_trigg = 0;
+
+ uint8_t cmdp =0;
+ while(param_getchar(Cmd, cmdp) != 0x00)
+ {
+ switch(param_getchar(Cmd, cmdp))
+ {
+ case 'h':
+ return usage_lf_config();
+ case 'H':
+ divisor = 88;
+ cmdp++;
+ break;
+ case 'L':
+ divisor = 95;
+ cmdp++;
+ break;
+ case 'q':
+ errors |= param_getdec(Cmd,cmdp+1,&divisor);
+ cmdp+=2;
+ break;
+ case 't':
+ errors |= param_getdec(Cmd,cmdp+1,&unsigned_trigg);
+ cmdp+=2;
+ 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);
+ cmdp+=2;
+ break;
+ case 'd':
+ errors |= param_getdec(Cmd,cmdp+1,&decimation);
+ cmdp+=2;
+ break;
+ case 'a':
+ averaging = param_getchar(Cmd,cmdp+1) == '1';
+ cmdp+=2;
+ break;
+ default:
+ PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
+ errors = 1;
+ break;
+ }
+ if(errors) break;
+ }
+ if(cmdp == 0)
+ {
+ errors = 1;// No args
+ }
+
+ //Validations
+ if(errors)
+ {
+ return usage_lf_config();
+ }
+ //Bps is limited to 8, so fits in lower half of arg1
+ 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));
+ clearCommandBuffer();
+ 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 <divisor>'");
- return 0;
- }
- SendCommand(&c);
- WaitForResponse(CMD_ACK,NULL);
- return 0;
+ 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, {arg1,0,0}};
+ clearCommandBuffer();
+ SendCommand(&c);
+ 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)
+{
+ uint8_t cmdp =0;
+ if(param_getchar(Cmd, cmdp) == 'h')
+ {
+ return usage_lf_snoop();
+ }
+
+ UsbCommand c = {CMD_LF_SNOOP_RAW_ADC_SAMPLES};
+ clearCommandBuffer();
+ SendCommand(&c);
+ WaitForResponse(CMD_ACK,NULL);
+ return 0;
}
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;
+ }
+ }
}
-
+//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 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 CmdLFSimBidir(const char *Cmd)
+int usage_lf_simfsk(void)
{
- // 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;
+ //print help
+ PrintAndLog("Usage: lf simfsk [c <clock>] [i] [H <fcHigh>] [L <fcLow>] [d <hexdata>]");
+ PrintAndLog("Options: ");
+ PrintAndLog(" h This help");
+ PrintAndLog(" c <clock> Manually set clock - can autodetect if using DemodBuffer");
+ PrintAndLog(" i invert data");
+ PrintAndLog(" H <fcHigh> Manually set the larger Field Clock");
+ PrintAndLog(" L <fcLow> Manually set the smaller Field Clock");
+ //PrintAndLog(" s TBD- -to enable a gap between playback repetitions - default: no gap");
+ PrintAndLog(" d <hexdata> 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;
}
-/* simulate an LF Manchester encoded tag with specified bitstream, clock rate and inter-id gap */
-int CmdLFSimManchester(const char *Cmd)
+int usage_lf_simask(void)
{
- static int clock, gap;
- static char data[1024], gapstring[8];
+ //print help
+ PrintAndLog("Usage: lf simask [c <clock>] [i] [b|m|r] [s] [d <raw hex to sim>]");
+ PrintAndLog("Options: ");
+ PrintAndLog(" h This help");
+ PrintAndLog(" c <clock> 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 <hexdata> Data to sim as hex - omit to sim from DemodBuffer");
+ return 0;
+}
- sscanf(Cmd, "%i %s %i", &clock, &data[0], &gap);
+int usage_lf_simpsk(void)
+{
+ //print help
+ PrintAndLog("Usage: lf simpsk [1|2|3] [c <clock>] [i] [r <carrier>] [d <raw hex to sim>]");
+ PrintAndLog("Options: ");
+ PrintAndLog(" h This help");
+ PrintAndLog(" c <clock> 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 <carrier> 2|4|8 are valid carriers: default = 2");
+ PrintAndLog(" d <hexdata> Data to sim as hex - omit to sim from DemodBuffer");
+ return 0;
+}
+
+// by marshmellow - sim fsk data given clock, fcHigh, fcLow, invert
+// - allow pull data from DemodBuffer
+int CmdLFfskSim(const char *Cmd)
+{
+ //might be able to autodetect FCs and clock from Graphbuffer if using demod buffer
+ // otherwise will need FChigh, FClow, Clock, and bitstream
+ uint8_t fcHigh=0, fcLow=0, clk=0;
+ uint8_t invert=0;
+ bool errors = FALSE;
+ char hexData[32] = {0x00}; // store entered hex data
+ uint8_t data[255] = {0x00};
+ int dataLen = 0;
+ uint8_t cmdp = 0;
+ while(param_getchar(Cmd, cmdp) != 0x00)
+ {
+ switch(param_getchar(Cmd, cmdp))
+ {
+ case 'h':
+ return usage_lf_simfsk();
+ case 'i':
+ invert = 1;
+ cmdp++;
+ break;
+ case 'c':
+ errors |= param_getdec(Cmd,cmdp+1,&clk);
+ cmdp+=2;
+ break;
+ case 'H':
+ errors |= param_getdec(Cmd,cmdp+1,&fcHigh);
+ cmdp+=2;
+ break;
+ case 'L':
+ errors |= param_getdec(Cmd,cmdp+1,&fcLow);
+ cmdp+=2;
+ break;
+ //case 's':
+ // separator=1;
+ // cmdp++;
+ // break;
+ case 'd':
+ dataLen = param_getstr(Cmd, cmdp+1, hexData);
+ if (dataLen==0) {
+ errors=TRUE;
+ } else {
+ dataLen = hextobinarray((char *)data, hexData);
+ }
+ if (dataLen==0) errors=TRUE;
+ if (errors) PrintAndLog ("Error getting hex data");
+ cmdp+=2;
+ break;
+ default:
+ PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
+ errors = TRUE;
+ break;
+ }
+ if(errors) break;
+ }
+ if(cmdp == 0 && DemodBufferLen == 0)
+ {
+ errors = TRUE;// No args
+ }
+
+ //Validations
+ if(errors)
+ {
+ return usage_lf_simfsk();
+ }
+
+ if (dataLen == 0){ //using DemodBuffer
+ if (clk==0 || fcHigh==0 || fcLow==0){ //manual settings must set them all
+ uint8_t ans = fskClocks(&fcHigh, &fcLow, &clk, 0);
+ if (ans==0){
+ if (!fcHigh) fcHigh=10;
+ if (!fcLow) fcLow=8;
+ if (!clk) clk=50;
+ }
+ }
+ } else {
+ setDemodBuf(data, dataLen, 0);
+ }
+
+ //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;
+}
- ClearGraph(0);
+// by marshmellow - sim ask data given clock, invert, manchester or raw, separator
+// - allow pull data from DemodBuffer
+int CmdLFaskSim(const char *Cmd)
+{
+ //autodetect clock from Graphbuffer if using demod buffer
+ // 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
+ }
- for (int i = 0; i < strlen(data) ; ++i)
- AppendGraph(0, clock, data[i]- '0');
+ //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;
+}
- CmdManchesterMod("");
+// 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
+ }
- RepaintGraphWindow();
+ //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);
+ }
- sprintf(&gapstring[0], "%i", gap);
- CmdLFSim(gapstring);
- return 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 CmdLFSnoop(const char *Cmd)
+int CmdLFSimBidir(const char *Cmd)
{
- UsbCommand c = {CMD_LF_SNOOP_RAW_ADC_SAMPLES};
-
- // 'h' means higher-low-frequency, 134 kHz
- c.arg[0] = 0;
- c.arg[1] = -1;
-
- if (*Cmd == 'l') {
- sscanf(Cmd, "l %"lli, &c.arg[1]);
- } else if(*Cmd == 'h') {
- 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("usage 1: snoop");
- PrintAndLog(" 2: snoop {l,h} [trigger threshold]");
- PrintAndLog(" 3: snoop <divisor> [trigger threshold]");
- return 0;
- }
-
- SendCommand(&c);
- WaitForResponse(CMD_ACK,NULL);
- return 0;
+ // Set ADC to twice the carrier for a slight supersampling
+ // HACK: not implemented in ARMSRC.
+ PrintAndLog("Not implemented yet.");
+ UsbCommand c = {CMD_LF_SIMULATE_BIDIR, {47, 384, 0}};
+ SendCommand(&c);
+ return 0;
}
int CmdVchDemod(const char *Cmd)
{
- // Is this the entire sync pattern, or does this also include some
- // data bits that happen to be the same everywhere? That would be
- // lovely to know.
- static const int SyncPattern[] = {
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- };
-
- // So first, we correlate for the sync pattern, and mark that.
- int bestCorrel = 0, bestPos = 0;
- int i;
- // It does us no good to find the sync pattern, with fewer than
- // 2048 samples after it...
- for (i = 0; i < (GraphTraceLen-2048); i++) {
- int sum = 0;
- int j;
- for (j = 0; j < arraylen(SyncPattern); j++) {
- sum += GraphBuffer[i+j]*SyncPattern[j];
- }
- if (sum > bestCorrel) {
- bestCorrel = sum;
- bestPos = i;
- }
- }
- PrintAndLog("best sync at %d [metric %d]", bestPos, bestCorrel);
-
- char bits[257];
- bits[256] = '\0';
-
- int worst = INT_MAX;
- int worstPos = 0;
-
- for (i = 0; i < 2048; i += 8) {
- int sum = 0;
- int j;
- for (j = 0; j < 8; j++) {
- sum += GraphBuffer[bestPos+i+j];
- }
- if (sum < 0) {
- bits[i/8] = '.';
- } else {
- bits[i/8] = '1';
- }
- if(abs(sum) < worst) {
- worst = abs(sum);
- worstPos = i;
- }
- }
- PrintAndLog("bits:");
- PrintAndLog("%s", bits);
- PrintAndLog("worst metric: %d at pos %d", worst, worstPos);
-
- if (strcmp(Cmd, "clone")==0) {
- GraphTraceLen = 0;
- char *s;
- for(s = bits; *s; s++) {
- int j;
- for(j = 0; j < 16; j++) {
- GraphBuffer[GraphTraceLen++] = (*s == '1') ? 1 : 0;
- }
- }
- RepaintGraphWindow();
- }
- return 0;
+ // Is this the entire sync pattern, or does this also include some
+ // data bits that happen to be the same everywhere? That would be
+ // lovely to know.
+ static const int SyncPattern[] = {
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ };
+
+ // So first, we correlate for the sync pattern, and mark that.
+ int bestCorrel = 0, bestPos = 0;
+ int i;
+ // It does us no good to find the sync pattern, with fewer than
+ // 2048 samples after it...
+ for (i = 0; i < (GraphTraceLen-2048); i++) {
+ int sum = 0;
+ int j;
+ for (j = 0; j < arraylen(SyncPattern); j++) {
+ sum += GraphBuffer[i+j]*SyncPattern[j];
+ }
+ if (sum > bestCorrel) {
+ bestCorrel = sum;
+ bestPos = i;
+ }
+ }
+ PrintAndLog("best sync at %d [metric %d]", bestPos, bestCorrel);
+
+ char bits[257];
+ bits[256] = '\0';
+
+ int worst = INT_MAX;
+ int worstPos = 0;
+
+ for (i = 0; i < 2048; i += 8) {
+ int sum = 0;
+ int j;
+ for (j = 0; j < 8; j++) {
+ sum += GraphBuffer[bestPos+i+j];
+ }
+ if (sum < 0) {
+ bits[i/8] = '.';
+ } else {
+ bits[i/8] = '1';
+ }
+ if(abs(sum) < worst) {
+ worst = abs(sum);
+ worstPos = i;
+ }
+ }
+ PrintAndLog("bits:");
+ PrintAndLog("%s", bits);
+ PrintAndLog("worst metric: %d at pos %d", worst, worstPos);
+
+ if (strcmp(Cmd, "clone")==0) {
+ GraphTraceLen = 0;
+ char *s;
+ for(s = bits; *s; s++) {
+ int j;
+ for(j = 0; j < 16; j++) {
+ GraphBuffer[GraphTraceLen++] = (*s == '1') ? 1 : 0;
+ }
+ }
+ RepaintGraphWindow();
+ }
+ return 0;
+}
+
+
+//by marshmellow
+int 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...
+
+ save_restoreGB(0);
+ return 1;
}
//by marshmellow
int CmdLFfind(const char *Cmd)
{
- int ans=0;
+ uint32_t wordData = 0;
+ int ans=0;
+ size_t minLength = 1000;
char cmdp = param_getchar(Cmd, 0);
-
- if (strlen(Cmd) > 1 || cmdp == 'h' || cmdp == 'H') {
- PrintAndLog("Usage: lf search <0|1>");
- PrintAndLog(" <use data from Graphbuffer>, if not set, try reading data from tag.");
+ char testRaw = param_getchar(Cmd, 1);
+ if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') {
+ PrintAndLog("Usage: lf search <0|1> [u]");
+ PrintAndLog(" <use data from Graphbuffer> , 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");
- PrintAndLog(" : lf search 1");
+ 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) {
+ CmdLFRead("s");
+ getSamples("30000",false);
+ } else if (GraphTraceLen < minLength) {
PrintAndLog("Data in Graphbuffer was too small.");
return 0;
- }
-
- PrintAndLog("NOTE: some demods output possible binary\n if it finds something that looks like a tag");
- PrintAndLog("Checking for known tags:");
- ans=CmdFSKdemodIO("");
- if (ans>0) {
- PrintAndLog("Valid IO Prox ID Found!");
- return 1;
- }
- ans=CmdFSKdemodHID("");
- if (ans>0) {
- PrintAndLog("Valid HID Prox ID Found!");
- return 1;
- }
- //add psk and indala
- ans=CmdIndalaDecode("0");
- if (ans>0) {
- PrintAndLog("Valid Indala ID Found!");
- return 1;
- }
- ans=Cmdaskmandemod("");
- if (ans>0) {
- PrintAndLog("Valid EM410x ID Found!");
- return 1;
- }
- PrintAndLog("No Known Tags Found!\n");
- 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, "<off period> <'0' period> <'1' period> <command> ['h'] -- Modulate LF reader field to send command before read (all periods in microseconds) (option 'h' for 134)"},
- {"em4x", CmdLFEM4X, 1, "{ EM4X RFIDs... }"},
- {"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, "<UID> ['l']-- Clone Indala to T55x7 (tag must be in antenna)(UID in HEX)(option 'l' for 224 UID"},
- {"read", CmdLFRead, 0, "['h' or <divisor>] -- Read 125/134 kHz LF ID-only tag (option 'h' for 134, alternatively: f=12MHz/(divisor+1))"},
- {"search", CmdLFfind, 1, "Read and Search for valid known tag (in offline mode it you can load first then search)"},
- {"sim", CmdLFSim, 0, "[GAP] -- Simulate LF tag from buffer with optional GAP (in microseconds)"},
- {"simbidir", CmdLFSimBidir, 0, "Simulate LF tag (with bidirectional data transmission between reader and tag)"},
- {"simman", CmdLFSimManchester, 0, "<Clock> <Bitstream> [GAP] Simulate arbitrary Manchester LF tag"},
- {"snoop", CmdLFSnoop, 0, "['l'|'h'|<divisor>] [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, "<d period> <z period> <o period> <c command> ['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, "<UID> ['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 <hexdata>] -- Simulate LF ASK tag from demodbuffer or input"},
+ {"simfsk", CmdLFfskSim, 0, "[c <clock>] [i] [H <fcHigh>] [L <fcLow>] [d <hexdata>] -- Simulate LF FSK tag from demodbuffer or input"},
+ {"simpsk", CmdLFpskSim, 0, "[1|2|3] [c <clock>] [i] [r <carrier>] [d <raw hex to sim>] -- 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)"},
+ {"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;
}
projects / proxmark3-svn / blobdiff