| | 1 | //----------------------------------------------------------------------------- |
| | 2 | // |
| | 3 | // This code is licensed to you under the terms of the GNU GPL, version 2 or, |
| | 4 | // at your option, any later version. See the LICENSE.txt file for the text of |
| | 5 | // the license. |
| | 6 | //----------------------------------------------------------------------------- |
| | 7 | // Low frequency Paradox tag commands |
| | 8 | //----------------------------------------------------------------------------- |
| | 9 | #include <stdio.h> |
| | 10 | #include <string.h> |
| | 11 | #include <inttypes.h> |
| | 12 | #include "cmdlfparadox.h" |
| | 13 | #include "proxmark3.h" |
| | 14 | #include "ui.h" |
| | 15 | #include "util.h" |
| | 16 | #include "graph.h" |
| | 17 | #include "cmdparser.h" |
| | 18 | #include "cmddata.h" |
| | 19 | #include "cmdlf.h" |
| | 20 | #include "lfdemod.h" |
| | 21 | static int CmdHelp(const char *Cmd); |
| | 22 | |
| | 23 | //by marshmellow |
| | 24 | //Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded) |
| | 25 | //print full Paradox Prox ID and some bit format details if found |
| | 26 | int CmdFSKdemodParadox(const char *Cmd) |
| | 27 | { |
| | 28 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave |
| | 29 | uint32_t hi2=0, hi=0, lo=0; |
| | 30 | |
| | 31 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; |
| | 32 | size_t BitLen = getFromGraphBuf(BitStream); |
| | 33 | if (BitLen==0) return 0; |
| | 34 | //get binary from fsk wave |
| | 35 | int idx = ParadoxdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo); |
| | 36 | if (idx<0){ |
| | 37 | if (g_debugMode){ |
| | 38 | if (idx==-1){ |
| | 39 | PrintAndLog("DEBUG: Just Noise Detected"); |
| | 40 | } else if (idx == -2) { |
| | 41 | PrintAndLog("DEBUG: Error demoding fsk"); |
| | 42 | } else if (idx == -3) { |
| | 43 | PrintAndLog("DEBUG: Preamble not found"); |
| | 44 | } else if (idx == -4) { |
| | 45 | PrintAndLog("DEBUG: Error in Manchester data"); |
| | 46 | } else { |
| | 47 | PrintAndLog("DEBUG: Error demoding fsk %d", idx); |
| | 48 | } |
| | 49 | } |
| | 50 | return 0; |
| | 51 | } |
| | 52 | if (hi2==0 && hi==0 && lo==0){ |
| | 53 | if (g_debugMode) PrintAndLog("DEBUG: Error - no value found"); |
| | 54 | return 0; |
| | 55 | } |
| | 56 | uint32_t fc = ((hi & 0x3)<<6) | (lo>>26); |
| | 57 | uint32_t cardnum = (lo>>10)&0xFFFF; |
| | 58 | uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32); |
| | 59 | uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32); |
| | 60 | uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32); |
| | 61 | |
| | 62 | PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x - RAW: %08x%08x%08x", |
| | 63 | hi>>10, (hi & 0x3)<<26 | (lo>>10), fc, cardnum, (lo>>2) & 0xFF, rawHi2, rawHi, rawLo); |
| | 64 | setDemodBuf(BitStream,BitLen,idx); |
| | 65 | if (g_debugMode){ |
| | 66 | PrintAndLog("DEBUG: idx: %d, len: %d, Printing Demod Buffer:", idx, BitLen); |
| | 67 | printDemodBuff(); |
| | 68 | } |
| | 69 | return 1; |
| | 70 | } |
| | 71 | //by marshmellow |
| | 72 | //see ASKDemod for what args are accepted |
| | 73 | int CmdParadoxRead(const char *Cmd) { |
| | 74 | // read lf silently |
| | 75 | CmdLFRead("s"); |
| | 76 | // get samples silently |
| | 77 | getSamples("10000",false); |
| | 78 | // demod and output viking ID |
| | 79 | return CmdFSKdemodParadox(Cmd); |
| | 80 | } |
| | 81 | |
| | 82 | static command_t CommandTable[] = { |
| | 83 | {"help", CmdHelp, 1, "This help"}, |
| | 84 | {"demod", CmdFSKdemodParadox, 1, "Demodulate a Paradox FSK tag from the GraphBuffer"}, |
| | 85 | {"read", CmdParadoxRead, 0, "Attempt to read and Extract tag data from the antenna"}, |
| | 86 | {NULL, NULL, 0, NULL} |
| | 87 | }; |
| | 88 | |
| | 89 | int CmdLFParadox(const char *Cmd) { |
| | 90 | CmdsParse(CommandTable, Cmd); |
| | 91 | return 0; |
| | 92 | } |
| | 93 | |
| | 94 | int CmdHelp(const char *Cmd) { |
| | 95 | CmdsHelp(CommandTable); |
| | 96 | return 0; |
| | 97 | } |
projects / proxmark3-svn / blame_incremental