dump only leaf TLV data

[proxmark3-svn] / client / cmdlfawid.c

diff --git a/client/cmdlfawid.c b/client/cmdlfawid.c
index 309f41180223cc80f04857c05167491b26bf1cea..141ba17288945f5cf44e50aea01d2a01cb96229e 100644 (file)
--- a/client/cmdlfawid.c
+++ b/client/cmdlfawid.c
@@ -8,31 +8,35 @@
 // the license.
 //-----------------------------------------------------------------------------
 // Low frequency AWID26 commands
 // the license.
 //-----------------------------------------------------------------------------
 // Low frequency AWID26 commands

+// FSK2a, RF/50, 96 bits (complete)

 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------
 

+#include <string.h>

 #include <stdio.h>      // sscanf
 #include "proxmark3.h"  // Definitions, USB controls, etc
 #include <stdio.h>      // sscanf
 #include "proxmark3.h"  // Definitions, USB controls, etc

+#include "cmdlfawid.h"

 #include "ui.h"         // PrintAndLog
 #include "cmdparser.h"  // CmdsParse, CmdsHelp
 #include "ui.h"         // PrintAndLog
 #include "cmdparser.h"  // CmdsParse, CmdsHelp

-#include "cmdlfawid.h"  // AWID function declarations
-#include "lfdemod.h"    // parityTest
+#include "lfdemod.h"    // parityTest +

 #include "util.h"       // weigandparity
 #include "protocols.h"  // for T55xx config register definitions
 #include "util.h"       // weigandparity
 #include "protocols.h"  // for T55xx config register definitions

+#include "cmddata.h"    // for printDemod and demodbuffer commands
+#include "graph.h"      // for getFromGraphBuff cmds

 #include "cmdmain.h"
 
 static int CmdHelp(const char *Cmd);
 
 #include "cmdmain.h"
 
 static int CmdHelp(const char *Cmd);
 

-int usage_lf_awid_fskdemod(void) {
+int usage_lf_awid_read(void) {

        PrintAndLog("Enables AWID26 compatible reader mode printing details of scanned AWID26 tags.");
        PrintAndLog("By default, values are printed and logged until the button is pressed or another USB command is issued.");
        PrintAndLog("If the ['1'] option is provided, reader mode is exited after reading a single AWID26 card.");
        PrintAndLog("");
        PrintAndLog("Enables AWID26 compatible reader mode printing details of scanned AWID26 tags.");
        PrintAndLog("By default, values are printed and logged until the button is pressed or another USB command is issued.");
        PrintAndLog("If the ['1'] option is provided, reader mode is exited after reading a single AWID26 card.");
        PrintAndLog("");

-       PrintAndLog("Usage:  lf awid fskdemod ['1']");
+       PrintAndLog("Usage:  lf awid read ['1']");

        PrintAndLog("Options : ");
        PrintAndLog("  1 : (optional) stop after reading a single card");
        PrintAndLog("");
        PrintAndLog("Options : ");
        PrintAndLog("  1 : (optional) stop after reading a single card");
        PrintAndLog("");

-       PrintAndLog("Samples : lf awid fskdemod");
-       PrintAndLog("        : lf awid fskdemod 1");
+       PrintAndLog("Samples : lf awid read");
+       PrintAndLog("        : lf awid read 1");

        return 0;
 }
 
        return 0;
 }
 


@@ -65,9 +69,9 @@ int usage_lf_awid_clone(void) {
        return 0;
 }
 
        return 0;
 }
 

-int CmdAWIDDemodFSK(const char *Cmd) {
+int CmdAWIDReadFSK(const char *Cmd) {

        int findone=0;
        int findone=0;

-       if (Cmd[0] == 'h' || Cmd[0] == 'H') return usage_lf_awid_fskdemod();
+       if (Cmd[0] == 'h' || Cmd[0] == 'H') return usage_lf_awid_read();

        if (Cmd[0] == '1') findone = 1;
 
        UsbCommand c = {CMD_AWID_DEMOD_FSK, {findone, 0, 0}};
        if (Cmd[0] == '1') findone = 1;
 
        UsbCommand c = {CMD_AWID_DEMOD_FSK, {findone, 0, 0}};


@@ -75,6 +79,104 @@ int CmdAWIDDemodFSK(const char *Cmd) {
        SendCommand(&c);
        return 0;   
 }
        SendCommand(&c);
        return 0;   
 }

+//by marshmellow
+//AWID Prox demod - FSK RF/50 with preamble of 00000001  (always a 96 bit data stream)
+//print full AWID Prox ID and some bit format details if found
+int CmdFSKdemodAWID(const char *Cmd)
+{
+       uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+       size_t size = getFromGraphBuf(BitStream);
+       if (size==0) return 0;
+
+       int waveIdx = 0;
+       //get binary from fsk wave
+       int idx = AWIDdemodFSK(BitStream, &size, &waveIdx);
+       if (idx<=0){
+               if (g_debugMode){
+                       if (idx == -1)
+                               PrintAndLog("DEBUG: Error - not enough samples");
+                       else if (idx == -2)
+                               PrintAndLog("DEBUG: Error - only noise found");
+                       else if (idx == -3)
+                               PrintAndLog("DEBUG: Error - problem during FSK demod");
+                       else if (idx == -4)
+                               PrintAndLog("DEBUG: Error - AWID preamble not found");
+                       else if (idx == -5)
+                               PrintAndLog("DEBUG: Error - Size not correct: %d", size);
+                       else
+                               PrintAndLog("DEBUG: Error %d",idx);
+               }
+               return 0;
+       }
+
+       // Index map
+       // 0            10            20            30              40            50              60
+       // |            |             |             |               |             |               |
+       // 01234567 890 1 234 5 678 9 012 3 456 7 890 1 234 5 678 9 012 3 456 7 890 1 234 5 678 9 012 3 - to 96
+       // -----------------------------------------------------------------------------
+       // 00000001 000 1 110 1 101 1 011 1 101 1 010 0 000 1 000 1 010 0 001 0 110 1 100 0 000 1 000 1
+       // premable bbb o bbb o bbw o fff o fff o ffc o ccc o ccc o ccc o ccc o ccc o wxx o xxx o xxx o - to 96
+       //          |---26 bit---|    |-----117----||-------------142-------------|
+       // b = format bit len, o = odd parity of last 3 bits
+       // f = facility code, c = card number
+       // w = wiegand parity
+       // (26 bit format shown)
+ 
+       //get raw ID before removing parities
+       uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32);
+       uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);
+       uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);
+       setDemodBuf(BitStream,96,idx);
+       setClockGrid(50, waveIdx + (idx*50));
+
+       size = removeParity(BitStream, idx+8, 4, 1, 88);
+       if (size != 66){
+               if (g_debugMode) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format");
+               return 0;
+       }
+       // ok valid card found!
+
+       // Index map
+       // 0           10         20        30          40        50        60
+       // |           |          |         |           |         |         |
+       // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456
+       // -----------------------------------------------------------------------------
+       // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000
+       // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
+       // |26 bit|   |-117--| |-----142------|
+       // b = format bit len, o = odd parity of last 3 bits
+       // f = facility code, c = card number
+       // w = wiegand parity
+       // (26 bit format shown)
+
+       uint32_t fc = 0;
+       uint32_t cardnum = 0;
+       uint32_t code1 = 0;
+       uint32_t code2 = 0;
+       uint8_t fmtLen = bytebits_to_byte(BitStream,8);
+       if (fmtLen==26){
+               fc = bytebits_to_byte(BitStream+9, 8);
+               cardnum = bytebits_to_byte(BitStream+17, 16);
+               code1 = bytebits_to_byte(BitStream+8,fmtLen);
+               PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo);
+       } else {
+               cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
+               if (fmtLen>32){
+                       code1 = bytebits_to_byte(BitStream+8,fmtLen-32);
+                       code2 = bytebits_to_byte(BitStream+8+(fmtLen-32),32);
+                       PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo);
+               } else{
+                       code1 = bytebits_to_byte(BitStream+8,fmtLen);
+                       PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo);
+               }
+       }
+       if (g_debugMode){
+               PrintAndLog("DEBUG: idx: %d, Len: %d Printing Demod Buffer:", idx, 96);
+               printDemodBuff();
+       }
+       //todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands
+       return 1;
+}

 
 //refactored by marshmellow
 int getAWIDBits(uint32_t fc, uint32_t cn, uint8_t      *AWIDBits) {
 
 //refactored by marshmellow
 int getAWIDBits(uint32_t fc, uint32_t cn, uint8_t      *AWIDBits) {


@@ -140,7 +242,7 @@ int CmdAWIDClone(const char *Cmd) {
        if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) return usage_lf_awid_clone();
 
        if (param_getchar(Cmd, 3) == 'Q' || param_getchar(Cmd, 3) == 'q')
        if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) return usage_lf_awid_clone();
 
        if (param_getchar(Cmd, 3) == 'Q' || param_getchar(Cmd, 3) == 'q')

-               blocks[0] = T5555_MODULATION_FSK2 | T5555_INVERT_OUTPUT | 50<<T5555_BITRATE_SHIFT | 3<<T5555_MAXBLOCK_SHIFT;
+               blocks[0] = T5555_MODULATION_FSK2 | T5555_INVERT_OUTPUT | ((50-2)>>1)<<T5555_BITRATE_SHIFT | 3<<T5555_MAXBLOCK_SHIFT;

 
        if ((fc & 0xFF) != fc) {
                fc &= 0xFF;
 
        if ((fc & 0xFF) != fc) {
                fc &= 0xFF;


@@ -190,7 +292,8 @@ int CmdAWIDClone(const char *Cmd) {
 
 static command_t CommandTable[] = {
        {"help",      CmdHelp,         1, "This help"},
 
 static command_t CommandTable[] = {
        {"help",      CmdHelp,         1, "This help"},

-       {"fskdemod",  CmdAWIDDemodFSK, 0, "['1'] Realtime AWID FSK demodulator (option '1' for one tag only)"},
+       {"demod",     CmdFSKdemodAWID, 1, "Demodulate an AWID FSK tag from the GraphBuffer"},
+       {"read",      CmdAWIDReadFSK,  0, "['1'] Realtime AWID FSK read from the antenna (option '1' for one tag only)"},

        {"sim",       CmdAWIDSim,      0, "<Facility-Code> <Card Number> -- AWID tag simulator"},
        {"clone",     CmdAWIDClone,    0, "<Facility-Code> <Card Number> <Q5> -- Clone AWID to T55x7 (tag must be in range of antenna)"},
        {NULL, NULL, 0, NULL}
        {"sim",       CmdAWIDSim,      0, "<Facility-Code> <Card Number> -- AWID tag simulator"},
        {"clone",     CmdAWIDClone,    0, "<Facility-Code> <Card Number> <Q5> -- Clone AWID to T55x7 (tag must be in range of antenna)"},
        {NULL, NULL, 0, NULL}