#include "cmdparser.h"
#include "cmdmain.h"
#include "cmddata.h"
+#include "util.h"
#include "cmdlf.h"
#include "cmdlfhid.h"
#include "cmdlfti.h"
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;
RepaintGraphWindow();
return 0;
}
-
+
int CmdIndalaDemod(const char *Cmd)
{
// Usage: recover 64bit UID by default, specify "224" as arg to recover a 224bit UID
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);
break;
}
}
-
+
if (start == rawbit - uidlen + 1) {
PrintAndLog("nothing to wait for");
return 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++) {
}
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') {
} else {
uid1=(uid1<<1)|(uid2>>31);
uid2=(uid2<<1)|1;
- }
+ }
}
PrintAndLog("UID=%s (%x%08x)", showbits, uid1, uid2);
}
uid4=(uid4<<1)|(uid5>>31);
uid5=(uid5<<1)|(uid6>>31);
uid6=(uid6<<1)|(uid7>>31);
-
- if (showbits[idx] == '0')
+
+ if (showbits[idx] == '0')
uid7 = (uid7<<1) | 0;
- else
+ else
uid7 = (uid7<<1) | 1;
}
PrintAndLog("UID=%s (%x%08x%08x%08x%08x%08x%08x)", showbits, uid1, uid2, uid3, uid4, uid5, uid6, uid7);
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)
+ // 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;
return 0;
}
+int CmdLFReadUsage()
+{
+ PrintAndLog("Usage: lf read [H|<divisor>] [b <bps>] [d <decim>] [a 0|1]");
+ PrintAndLog("Options: ");
+ PrintAndLog(" h This help");
+ PrintAndLog(" H High frequency (134 KHz). Defaults to 125 KHz");
+ PrintAndLog(" <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("Examples:");
+ PrintAndLog(" lf read");
+ PrintAndLog(" Samples at 125KHz, 8bps.");
+ PrintAndLog(" lf read h b 4 d 3");
+ PrintAndLog(" Samples at 134KHz, averages three samples into one, stored with ");
+ PrintAndLog(" a resolution of 4 bits per sample.");
+ return 0;
+}
int CmdLFRead(const char *Cmd)
{
- UsbCommand c = {CMD_ACQUIRE_RAW_ADC_SAMPLES_125K};
+ uint8_t divisor = 95;//Frequency divisor
+ uint8_t bps = 8; // Bits per sample
+ uint8_t decimation = 1; //How many to keep
+ bool averaging = 1; // Should we use averaging when discarding samples?
+ bool errors = FALSE;
+
+ uint8_t cmdp =0;
+ if(param_getchar(Cmd, cmdp) == 'h')
+ {
+ return CmdLFReadUsage();
+ }
- // '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;
+ // Divisor
+ if(param_getchar(Cmd, cmdp) == 'H') {
+ divisor = 88;
+ cmdp++;
+ }else if(param_isdec(Cmd,cmdp) )
+ {
+ errors |= param_getdec(Cmd,cmdp, &divisor);
+ }
+ //BPS
+ if(param_getchar(Cmd, cmdp) == 'b') {
+ errors |= param_getdec(Cmd,cmdp+1,&bps);
+ cmdp+=2;
+ }
+ //Decimation
+ if(param_getchar(Cmd, cmdp) == 'd')
+ {
+ errors |= param_getdec(Cmd,cmdp+1,&decimation);
+ cmdp+=2;
+ }
+ //Averaging
+ if(param_getchar(Cmd, cmdp) == 'a')
+ {
+ averaging = param_getchar(Cmd,cmdp+1) == '1';
+ cmdp+=2;
+ }
+ //Validations
+ if(errors)
+ {
+ return CmdLFReadUsage();
+ }
+
+ //Bps is limited to 8, so fits in lower half of arg1
+ if(bps > 8) bps = 8;
+
+ //Feedback
+ PrintAndLog("Sampling config: ");
+ PrintAndLog(" divisor: %d ", divisor);
+ PrintAndLog(" bps: %d ", bps);
+ PrintAndLog(" decimation: %d ", decimation);
+ PrintAndLog(" averaging: %d ", averaging);
+ PrintAndLog("OBS, this is sticky on the device and affects all LF listening operations");
+ PrintAndLog("To reset, issue 'lf read'");
+
+ //And ship it to device
+ //Averaging is a flag on high-bit of arg[1]
+ UsbCommand c = {CMD_ACQUIRE_RAW_ADC_SAMPLES_125K};
+ c.arg[0] = divisor;
+ c.arg[1] = bps | (averaging << 7) ;
+ c.arg[2] = decimation;
+
+ SendCommand(&c);
+ WaitForResponse(CMD_ACK,NULL);
+ 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)
- {
+ 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;
+ int i,j;
static int gap;
sscanf(Cmd, "%i", &gap);
/* convert to bitstream if necessary */
ChkBitstream(Cmd);
- PrintAndLog("Sending data, please wait...");
- for (i = 0; i < GraphTraceLen; i += 48) {
+ 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}};
- int j;
- for (j = 0; j < 48; j++) {
+
+ for (j = 0; j < USB_CMD_DATA_SIZE; j++) {
c.d.asBytes[j] = GraphBuffer[i+j];
}
SendCommand(&c);
WaitForResponse(CMD_ACK,NULL);
+ printf(".");
}
- PrintAndLog("Starting simulator...");
+ printf("\n");
+ PrintAndLog("Starting to simulate");
UsbCommand c = {CMD_SIMULATE_TAG_125K, {GraphTraceLen, gap, 0}};
SendCommand(&c);
return 0;
int CmdLFfind(const char *Cmd)
{
int ans=0;
- if (!offline){
+ 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.");
+ PrintAndLog("");
+ PrintAndLog(" sample: lf search");
+ PrintAndLog(" : lf search 1");
+ return 0;
+ }
+
+ if (!offline && (cmdp != '1')){
ans=CmdLFRead("");
ans=CmdSamples("20000");
+ } else if (GraphTraceLen < 1000) {
+ PrintAndLog("Data in Graphbuffer was too small.");
+ return 0;
}
- if (GraphTraceLen<1000) 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=Cmdaskmandemod("");
+ ans=CmdFSKdemodIO("");
if (ans>0) {
- PrintAndLog("Valid EM410x ID Found!");
+ PrintAndLog("Valid IO Prox ID Found!");
return 1;
}
ans=CmdFSKdemodHID("");
PrintAndLog("Valid HID Prox ID Found!");
return 1;
}
- ans=CmdFSKdemodIO("");
+ //add psk and indala
+ ans=CmdIndalaDecode("0");
if (ans>0) {
- PrintAndLog("Valid IO Prox ID Found!");
+ PrintAndLog("Valid Indala ID Found!");
return 1;
}
- //add psk and indala
- ans=CmdIndalaDecode("");
+ ans=Cmdaskmandemod("");
if (ans>0) {
- PrintAndLog("Valid Indala ID Found!");
+ PrintAndLog("Valid EM410x ID Found!");
return 1;
}
- // ans=CmdIndalaDemod("224");
- // if (ans>0) return 1;
PrintAndLog("No Known Tags Found!\n");
return 0;
}
-static command_t CommandTable[] =
+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)"},
int CmdLF(const char *Cmd)
{
CmdsParse(CommandTable, Cmd);
- return 0;
+ return 0;
}
int CmdHelp(const char *Cmd)
projects / proxmark3-svn / blobdiff