sync with master lf files to resolve conflicts

[proxmark3-svn] / client / cmdlf.c

diff --git a/client/cmdlf.c b/client/cmdlf.c
index 26bd5e4fd6b0d1a00c71da5d4cdc234db9bfe9d0..b398689733bdbbec3a2af7c920fc514ddd41ec42 100644 (file)
--- a/client/cmdlf.c
+++ b/client/cmdlf.c
@@ -1,15 +1,32 @@
+//-----------------------------------------------------------------------------
+// Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
+//
+// This code is licensed to you under the terms of the GNU GPL, version 2 or,
+// at your option, any later version. See the LICENSE.txt file for the text of
+// the license.
+//-----------------------------------------------------------------------------
+// Low frequency commands
+//-----------------------------------------------------------------------------
+

 #include <stdio.h>
 #include <stdio.h>

+#include <stdlib.h>

 #include <string.h>
 #include <string.h>

-#include "proxusb.h"
+#include <limits.h>
+#include "proxmark3.h"

 #include "data.h"
 #include "graph.h"
 #include "ui.h"
 #include "cmdparser.h"
 #include "data.h"
 #include "graph.h"
 #include "ui.h"
 #include "cmdparser.h"

+#include "cmdmain.h"

 #include "cmddata.h"
 #include "cmdlf.h"
 #include "cmdlfhid.h"
 #include "cmdlfti.h"
 #include "cmdlfem4x.h"
 #include "cmddata.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"

 
 static int CmdHelp(const char *Cmd);
 
 
 static int CmdHelp(const char *Cmd);
 


@@ -21,7 +38,7 @@ int CmdLFCommandRead(const char *Cmd)
   dummy[0]= ' ';
 
   UsbCommand c = {CMD_MOD_THEN_ACQUIRE_RAW_ADC_SAMPLES_125K};
   dummy[0]= ' ';
 
   UsbCommand c = {CMD_MOD_THEN_ACQUIRE_RAW_ADC_SAMPLES_125K};

-  sscanf(Cmd, "%i %i %i %s %s", &c.arg[0], &c.arg[1], &c.arg[2], (char *) &c.d.asBytes,(char *) &dummy+1);
+  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);
   // in case they specified 'h'
   strcpy((char *)&c.d.asBytes + strlen((char *)c.d.asBytes), dummy);
   SendCommand(&c);


@@ -39,7 +56,7 @@ int CmdFlexdemod(const char *Cmd)
     }
   }
 
     }
   }
 

-#define LONG_WAIT 100
+  #define LONG_WAIT 100

   int start;
   for (start = 0; start < GraphTraceLen - LONG_WAIT; start++) {
     int first = GraphBuffer[start];
   int start;
   for (start = 0; start < GraphTraceLen - LONG_WAIT; start++) {
     int first = GraphBuffer[start];


@@ -59,22 +76,18 @@ int CmdFlexdemod(const char *Cmd)
 
   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;
+       int bit, sum;

   i = start;
   for (bit = 0; bit < 64; bit++) {
   i = start;
   for (bit = 0; bit < 64; bit++) {

-    int j;
-    int sum = 0;
-    for (j = 0; j < 16; j++) {
+               sum = 0;
+               for (int j = 0; j < 16; j++) {

       sum += GraphBuffer[i++];
     }
       sum += GraphBuffer[i++];
     }

-    if (sum > 0) {
-      bits[bit] = 1;
-    } else {
-      bits[bit] = 0;
-    }
+
+               bits[bit] = (sum > 0) ? 1 : 0;
+

     PrintAndLog("bit %d sum %d", bit, sum);
   }
 
     PrintAndLog("bit %d sum %d", bit, sum);
   }
 


@@ -92,15 +105,14 @@ int CmdFlexdemod(const char *Cmd)
     }
   }
 
     }
   }
 

+       // 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++) {

-    if (bits[bit] == 0) {
-      phase = 0;
-    } else {
-      phase = 1;
-    }
+       
+               phase = (bits[bit] == 0) ? 0 : 1;
+               

     int j;
     for (j = 0; j < 32; j++) {
       GraphBuffer[i++] = phase;
     int j;
     for (j = 0; j < 32; j++) {
       GraphBuffer[i++] = phase;


@@ -111,7 +123,7 @@ int CmdFlexdemod(const char *Cmd)
   RepaintGraphWindow();
   return 0;
 }
   RepaintGraphWindow();
   return 0;
 }

-
+  

 int CmdIndalaDemod(const char *Cmd)
 {
   // Usage: recover 64bit UID by default, specify "224" as arg to recover a 224bit UID
 int CmdIndalaDemod(const char *Cmd)
 {
   // Usage: recover 64bit UID by default, specify "224" as arg to recover a 224bit UID


@@ -119,12 +131,14 @@ int CmdIndalaDemod(const char *Cmd)
   int state = -1;
   int count = 0;
   int i, j;
   int state = -1;
   int count = 0;
   int i, j;

+

   // worst case with GraphTraceLen=64000 is < 4096
   // under normal conditions it's < 2048
   // 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;
   uint8_t rawbits[4096];
   int rawbit = 0;
   int worst = 0, worstPos = 0;

-  PrintAndLog("Expecting a bit less than %d raw bits", GraphTraceLen / 32);
+ // 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)) {
   for (i = 0; i < GraphTraceLen-1; i += 2) {
     count += 1;
     if ((GraphBuffer[i] > GraphBuffer[i + 1]) && (state != 1)) {


@@ -153,8 +167,13 @@ int CmdIndalaDemod(const char *Cmd)
       count = 0;
     }
   }
       count = 0;
     }
   }

-  PrintAndLog("Recovered %d raw bits", rawbit);
-  PrintAndLog("worst metric (0=best..7=worst): %d at pos %d", worst, worstPos);
+  
+  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;
 
   // Finding the start of a UID
   int uidlen, long_wait;


@@ -165,6 +184,7 @@ int CmdIndalaDemod(const char *Cmd)
     uidlen = 64;
     long_wait = 29;
   }
     uidlen = 64;
     long_wait = 29;
   }

+

   int start;
   int first = 0;
   for (start = 0; start <= rawbit - uidlen; start++) {
   int start;
   int first = 0;
   for (start = 0; start <= rawbit - uidlen; start++) {


@@ -178,6 +198,7 @@ int CmdIndalaDemod(const char *Cmd)
       break;
     }
   }
       break;
     }
   }

+  

   if (start == rawbit - uidlen + 1) {
     PrintAndLog("nothing to wait for");
     return 0;
   if (start == rawbit - uidlen + 1) {
     PrintAndLog("nothing to wait for");
     return 0;


@@ -191,12 +212,12 @@ int CmdIndalaDemod(const char *Cmd)
   }
 
   // Dumping UID
   }
 
   // Dumping UID

-  uint8_t bits[224];
-  char showbits[225];
-  showbits[uidlen]='\0';
+       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++) {
   if (uidlen > rawbit) {
     PrintAndLog("Warning: not enough raw bits to get a full UID");
     for (bit = 0; bit < rawbit; bit++) {


@@ -214,11 +235,47 @@ int CmdIndalaDemod(const char *Cmd)
     }
     times = 1;
   }
     }
     times = 1;
   }

-  PrintAndLog("UID=%s", showbits);
+  
+  //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 occurences
-  for (; i + uidlen <= rawbit;) {
+  // Checking UID against next occurrences

     int failed = 0;
     int failed = 0;

+       for (; i + uidlen <= rawbit;) {
+               failed = 0;

     for (bit = 0; bit < uidlen; bit++) {
       if (bits[bit] != rawbits[i++]) {
         failed = 1;
     for (bit = 0; bit < uidlen; bit++) {
       if (bits[bit] != rawbits[i++]) {
         failed = 1;


@@ -230,9 +287,12 @@ int CmdIndalaDemod(const char *Cmd)
     }
     times += 1;
   }
     }
     times += 1;
   }

-  PrintAndLog("Occurences: %d (expected %d)", times, (rawbit - start) / uidlen);
+
+  PrintAndLog("Occurrences: %d (expected %d)", times, (rawbit - start) / uidlen);

 
   // Remodulating for tag cloning
 
   // 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;
   GraphTraceLen = 32*uidlen;
   i = 0;
   int phase = 0;


@@ -250,23 +310,68 @@ int CmdIndalaDemod(const char *Cmd)
   }
 
   RepaintGraphWindow();
   }
 
   RepaintGraphWindow();

+  return 1;
+}
+
+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;
+       } 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;
 }
 
 int CmdLFRead(const char *Cmd)
 {
   UsbCommand c = {CMD_ACQUIRE_RAW_ADC_SAMPLES_125K};
   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;
   // 'h' means higher-low-frequency, 134 kHz
   if(*Cmd == 'h') {
     c.arg[0] = 1;
   } else if (*Cmd == '\0') {
     c.arg[0] = 0;

-  } else {
-    PrintAndLog("use 'read' or 'read h'");
+  } 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);
     return 0;
   }
   SendCommand(&c);

-  WaitForResponse(CMD_ACK);
+  WaitForResponse(CMD_ACK,NULL);

   return 0;
 }
 
   return 0;
 }
 


@@ -303,7 +408,7 @@ int CmdLFSim(const char *Cmd)
       c.d.asBytes[j] = GraphBuffer[i+j];
     }
     SendCommand(&c);
       c.d.asBytes[j] = GraphBuffer[i+j];
     }
     SendCommand(&c);

-    WaitForResponse(CMD_ACK);
+    WaitForResponse(CMD_ACK,NULL);

   }
 
   PrintAndLog("Starting simulator...");
   }
 
   PrintAndLog("Starting simulator...");


@@ -314,7 +419,9 @@ int CmdLFSim(const char *Cmd)
 
 int CmdLFSimBidir(const char *Cmd)
 {
 
 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;
   UsbCommand c = {CMD_LF_SIMULATE_BIDIR, {47, 384, 0}};
   SendCommand(&c);
   return 0;


@@ -326,28 +433,47 @@ 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)
+{
+  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;
+}
+

 int CmdVchDemod(const char *Cmd)
 {
   // Is this the entire sync pattern, or does this also include some
 int CmdVchDemod(const char *Cmd)
 {
   // Is this the entire sync pattern, or does this also include some


@@ -388,7 +514,7 @@ int CmdVchDemod(const char *Cmd)
   bits[256] = '\0';
 
   int worst = INT_MAX;
   bits[256] = '\0';
 
   int worst = INT_MAX;

-  int worstPos;
+  int worstPos = 0;

 
   for (i = 0; i < 2048; i += 8) {
     int sum = 0;
 
   for (i = 0; i < 2048; i += 8) {
     int sum = 0;


@@ -424,20 +550,66 @@ int CmdVchDemod(const char *Cmd)
   return 0;
 }
 
   return 0;
 }
 

+//by marshmellow
+int CmdLFfind(const char *Cmd)
+{
+  int ans=0;
+  if (!offline){
+    ans=CmdLFRead("");
+    ans=CmdSamples("20000");
+  }
+  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("");
+  if (ans>0) {
+    PrintAndLog("Valid EM410x ID Found!");
+    return 1;
+  }
+  ans=CmdFSKdemodHID("");
+  if (ans>0) {
+    PrintAndLog("Valid HID Prox ID Found!");
+    return 1;
+  }
+  ans=CmdFSKdemodIO("");
+  if (ans>0) {
+    PrintAndLog("Valid IO Prox ID Found!");
+    return 1;
+  }
+  //add psk and indala
+  ans=CmdIndalaDecode("");
+  if (ans>0) {
+    PrintAndLog("Valid Indala ID Found!");
+    return 1;
+  }
+ // ans=CmdIndalaDemod("224");
+ // if (ans>0) return 1;
+  PrintAndLog("No Known Tags 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)"},
 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"},
+  {"em4x",        CmdLFEM4X,          1, "{ EM4X RFIDs... }"},

   {"flexdemod",   CmdFlexdemod,       1, "Demodulate samples for FlexPass"},
   {"flexdemod",   CmdFlexdemod,       1, "Demodulate samples for FlexPass"},

-  {"hid",         CmdLFHID,           1, "HID RFIDs"},
+  {"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)"},
   {"indalademod", CmdIndalaDemod,     1, "['224'] -- Demodulate samples for Indala 64 bit UID (option '224' for 224 bit)"},

-  {"read",        CmdLFRead,          0, "['h'] -- Read 125/134 kHz LF ID-only tag (option 'h' for 134)"},
+  {"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"},
   {"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"},

-  {"ti",          CmdLFTI,            1, "TI RFIDs"},
+  {"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"},
   {"vchdemod",    CmdVchDemod,        1, "['clone'] -- Demodulate samples for VeriChip"},

+  {"t55xx",       CmdLFT55XX,         1, "{ T55xx RFIDs... }"},
+  {"pcf7931",     CmdLFPCF7931,       1, "{PCF7931 RFIDs...}"},

   {NULL, NULL, 0, NULL}
 };
 
   {NULL, NULL, 0, NULL}
 };