mirror of
https://github.com/RfidResearchGroup/proxmark3.git
synced 2024-12-29 11:52:59 +08:00
c04ac4f9ac
ADD: raw commands - added the basis for sending RAW commands to FeliCa. CHG: CRC16 rework, uses table based implementation. This will change more functions as I go on.
1285 lines
No EOL
34 KiB
C
1285 lines
No EOL
34 KiB
C
//-----------------------------------------------------------------------------
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// Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
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//
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// This code is licensed to you under the terms of the GNU GPL, version 2 or,
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// at your option, any later version. See the LICENSE.txt file for the text of
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// the license.
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//-----------------------------------------------------------------------------
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// High frequency Legic commands
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//-----------------------------------------------------------------------------
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#include "cmdhflegic.h"
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static int CmdHelp(const char *Cmd);
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#define MAX_LENGTH 1024
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int usage_legic_calccrc(void){
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PrintAndLog("Calculates the legic crc8/crc16 on the given data.");
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PrintAndLog("There must be an even number of hexsymbols as input.");
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PrintAndLog("Usage: hf legic crc [h] d <data> u <uidcrc> c <8|16>");
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PrintAndLog("Options:");
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PrintAndLog(" h : this help");
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PrintAndLog(" d <data> : (hex symbols) bytes to calculate crc over");
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PrintAndLog(" u <uidcrc> : MCC hexbyte");
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PrintAndLog(" c <8|16> : Crc type");
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PrintAndLog("");
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PrintAndLog("Samples:");
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PrintAndLog(" hf legic crc d deadbeef1122");
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PrintAndLog(" hf legic crc d deadbeef1122 u 9A c 16");
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return 0;
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}
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int usage_legic_rdmem(void){
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PrintAndLog("Read data from a legic tag.");
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PrintAndLog("Usage: hf legic rdmem [h] <offset> <length> <IV>");
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PrintAndLog("Options:");
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PrintAndLog(" h : this help");
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PrintAndLog(" <offset> : (hex) offset in data array to start download from");
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PrintAndLog(" <length> : (hex) number of bytes to read");
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PrintAndLog(" <IV> : (hex) (optional) Initialization vector to use. Must be odd and 7bits max");
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PrintAndLog("");
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PrintAndLog("Samples:");
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PrintAndLog(" hf legic rdmem 0 16 - reads from byte[0] 0x16 bytes(system header)");
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PrintAndLog(" hf legic rdmem 0 4 55 - reads from byte[0] 0x4 bytes with IV 0x55");
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PrintAndLog(" hf legic rdmem 0 100 55 - reads 0x100 bytes with IV 0x55");
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return 0;
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}
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int usage_legic_sim(void){
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PrintAndLog("Simulates a LEGIC Prime tag. MIM22, MIM256, MIM1024 types can be emulated");
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PrintAndLog("Use eload/esave to upload a dump into emulator memory");
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PrintAndLog("Usage: hf legic sim [h] <tagtype> <phase> <frame> <reqresp>");
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PrintAndLog("Options:");
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PrintAndLog(" h : this help");
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PrintAndLog(" <tagtype> : 0 = MIM22");
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PrintAndLog(" : 1 = MIM256 (default)");
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PrintAndLog(" : 2 = MIM1024");
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PrintAndLog(" <phase> : phase drift");
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PrintAndLog(" <frame> : frame drift");
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PrintAndLog(" <reqresp> : reqresp drift");
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PrintAndLog("");
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PrintAndLog("Samples:");
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PrintAndLog(" hf legic sim");
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PrintAndLog(" hf legic sim ");
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return 0;
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}
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int usage_legic_write(void){
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PrintAndLog("Write data to a LEGIC Prime tag. It autodetects tagsize to make sure size");
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PrintAndLog("Usage: hf legic write [h] o <offset> d <data (hex symbols)>");
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PrintAndLog("Options:");
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PrintAndLog(" h : this help");
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PrintAndLog(" o <offset> : (hex) offset in data array to start writing");
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//PrintAndLog(" <IV> : (optional) Initialization vector to use (ODD and 7bits)");
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PrintAndLog(" d <data> : (hex symbols) bytes to write ");
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PrintAndLog("");
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PrintAndLog("Samples:");
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PrintAndLog(" hf legic write o 10 d 11223344 - Write 0x11223344 starting from offset 0x10");
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return 0;
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}
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int usage_legic_reader(void){
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PrintAndLog("Read UID and type information from a legic tag.");
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PrintAndLog("Usage: hf legic reader [h]");
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PrintAndLog("Options:");
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PrintAndLog(" h : this help");
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PrintAndLog("");
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PrintAndLog("Samples:");
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PrintAndLog(" hf legic reader");
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return 0;
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}
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int usage_legic_info(void){
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PrintAndLog("Reads information from a legic prime tag.");
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PrintAndLog("Shows systemarea, user areas etc");
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PrintAndLog("Usage: hf legic info [h]");
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PrintAndLog("Options:");
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PrintAndLog(" h : this help");
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PrintAndLog("");
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PrintAndLog("Samples:");
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PrintAndLog(" hf legic info");
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return 0;
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}
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int usage_legic_dump(void){
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PrintAndLog("Reads all pages from LEGIC Prime MIM22, MIM256, MIM1024");
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PrintAndLog("and saves binary dump into the file `filename.bin` or `cardUID.bin`");
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PrintAndLog("It autodetects card type.\n");
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PrintAndLog("Usage: hf legic dump [h] o <filename w/o .bin>");
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PrintAndLog("Options:");
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PrintAndLog(" h : this help");
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PrintAndLog(" o <filename> : filename w/o '.bin' to dump bytes");
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PrintAndLog("");
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PrintAndLog("Samples:");
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PrintAndLog(" hf legic dump");
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PrintAndLog(" hf legic dump o myfile");
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return 0;
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}
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int usage_legic_restore(void){
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PrintAndLog("Reads binary file and it autodetects card type and verifies that the file has the same size");
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PrintAndLog("Then write the data back to card. All bytes except the first 7bytes [UID(4) MCC(1) DCF(2)]\n");
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PrintAndLog("Usage: hf legic restore [h] i <filename w/o .bin>");
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PrintAndLog("Options:");
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PrintAndLog(" h : this help");
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PrintAndLog(" i <filename> : filename w/o '.bin' to restore bytes on to card from");
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PrintAndLog("");
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PrintAndLog("Samples:");
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PrintAndLog(" hf legic restore i myfile");
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return 0;
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}
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int usage_legic_eload(void){
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PrintAndLog("It loads binary dump from the file `filename.bin`");
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PrintAndLog("Usage: hf legic eload [h] [card memory] <file name w/o `.bin`>");
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PrintAndLog("Options:");
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PrintAndLog(" h : this help");
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PrintAndLog(" [card memory] : 0 = MIM22");
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PrintAndLog(" : 1 = MIM256 (default)");
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PrintAndLog(" : 2 = MIM1024");
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PrintAndLog(" <filename> : filename w/o .bin to load");
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PrintAndLog("");
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PrintAndLog("Samples:");
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PrintAndLog(" hf legic eload 2 myfile");
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return 0;
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}
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int usage_legic_esave(void){
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PrintAndLog("It saves binary dump into the file `filename.bin` or `cardID.bin`");
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PrintAndLog(" Usage: hf legic esave [h] [card memory] [file name w/o `.bin`]");
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PrintAndLog("Options:");
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PrintAndLog(" h : this help");
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PrintAndLog(" [card memory] : 0 = MIM22");
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PrintAndLog(" : 1 = MIM256 (default)");
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PrintAndLog(" : 2 = MIM1024");
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PrintAndLog(" <filename> : filename w/o .bin to load");
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PrintAndLog("");
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PrintAndLog("Samples:");
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PrintAndLog(" hf legic esave 2 myfile");
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return 0;
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}
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int usage_legic_wipe(void){
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PrintAndLog("Fills a legic tag memory with zeros. From byte7 and to the end.");
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PrintAndLog(" Usage: hf legic wipe [h]");
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PrintAndLog("Options:");
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PrintAndLog(" h : this help");
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PrintAndLog("");
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PrintAndLog("Samples:");
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PrintAndLog(" hf legic wipe");
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return 0;
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}
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/*
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* Output BigBuf and deobfuscate LEGIC RF tag data.
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* This is based on information given in the talk held
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* by Henryk Ploetz and Karsten Nohl at 26c3
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*/
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int CmdLegicInfo(const char *Cmd) {
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char cmdp = param_getchar(Cmd, 0);
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if ( cmdp == 'H' || cmdp == 'h' ) return usage_legic_info();
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int i = 0, k = 0, segmentNum = 0, segment_len = 0, segment_flag = 0;
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int crc = 0, wrp = 0, wrc = 0;
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uint8_t stamp_len = 0;
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uint16_t datalen = 0;
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char token_type[5] = {0,0,0,0,0};
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int dcf = 0;
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int bIsSegmented = 0;
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// tagtype
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legic_card_select_t card;
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if (legic_get_type(&card)) {
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PrintAndLog("Failed to identify tagtype");
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return 1;
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}
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PrintAndLog("Reading tag memory %d b...", card.cardsize);
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// allocate receiver buffer
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uint8_t *data = malloc(card.cardsize);
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if (!data) {
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PrintAndLog("Cannot allocate memory");
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return 2;
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}
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memset(data, 0, card.cardsize);
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int status = legic_read_mem(0, card.cardsize, 0x55, data, &datalen);
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if ( status > 0 ) {
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PrintAndLog("Failed reading memory");
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free(data);
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return 3;
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}
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// Output CDF System area (9 bytes) plus remaining header area (12 bytes)
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crc = data[4];
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uint32_t calc_crc = CRC8Legic(data, 4);
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PrintAndLog("\nCDF: System Area");
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PrintAndLog("------------------------------------------------------");
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PrintAndLog("MCD: %02x, MSN: %02x %02x %02x, MCC: %02x %s",
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data[0],
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data[1],
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data[2],
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data[3],
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data[4],
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(calc_crc == crc) ? "OK":"Fail"
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);
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// MCD = Manufacturer ID (should be list meaning something?)
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token_type[0] = 0;
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dcf = ((int)data[6] << 8) | (int)data[5];
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// New unwritten media?
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if (dcf == 0xFFFF) {
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PrintAndLog("DCF: %d (%02x %02x), Token Type=NM (New Media)",
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dcf,
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data[5],
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data[6]
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);
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} else if (dcf > 60000) { // Master token?
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int fl = 0;
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if (data[6] == 0xec) {
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strncpy(token_type, "XAM", sizeof(token_type));
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fl = 1;
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stamp_len = 0x0c - (data[5] >> 4);
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} else {
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switch (data[5] & 0x7f) {
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case 0x00 ... 0x2f:
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strncpy(token_type, "IAM", sizeof(token_type));
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fl = (0x2f - (data[5] & 0x7f)) + 1;
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break;
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case 0x30 ... 0x6f:
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strncpy(token_type, "SAM", sizeof(token_type));
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fl = (0x6f - (data[5] & 0x7f)) + 1;
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break;
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case 0x70 ... 0x7f:
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strncpy(token_type, "GAM", sizeof(token_type));
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fl = (0x7f - (data[5] & 0x7f)) + 1;
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break;
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}
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stamp_len = 0xfc - data[6];
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}
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PrintAndLog("DCF: %d (%02x %02x), Token Type=%s (OLE=%01u), OL=%02u, FL=%02u",
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dcf,
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data[5],
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data[6],
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token_type,
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(data[5] & 0x80 )>> 7,
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stamp_len,
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fl
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);
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} else { // Is IM(-S) type of card...
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if (data[7] == 0x9F && data[8] == 0xFF) {
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bIsSegmented = 1;
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strncpy(token_type, "IM-S", sizeof(token_type));
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} else {
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strncpy(token_type, "IM", sizeof(token_type));
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}
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PrintAndLog("DCF: %d (%02x %02x), Token Type=%s (OLE=%01u)",
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dcf,
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data[5],
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data[6],
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token_type,
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(data[5]&0x80) >> 7
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);
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}
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// Makes no sence to show this on blank media...
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if (dcf != 0xFFFF) {
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if (bIsSegmented) {
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PrintAndLog("WRP=%02u, WRC=%01u, RD=%01u, SSC=%02x",
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data[7] & 0x0f,
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(data[7] & 0x70) >> 4,
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(data[7] & 0x80) >> 7,
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data[8]
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);
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}
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// Header area is only available on IM-S cards, on master tokens this data is the master token data itself
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if (bIsSegmented || dcf > 60000) {
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if (dcf > 60000) {
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PrintAndLog("Master token data");
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PrintAndLog("%s", sprint_hex(data+8, 14));
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} else {
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PrintAndLog("Remaining Header Area");
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PrintAndLog("%s", sprint_hex(data+9, 13));
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}
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}
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}
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uint8_t segCrcBytes[8] = {0,0,0,0,0,0,0,0};
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uint32_t segCalcCRC = 0;
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uint32_t segCRC = 0;
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// Not Data card?
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if (dcf > 60000)
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goto out;
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PrintAndLog("\nADF: User Area");
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PrintAndLog("------------------------------------------------------");
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if(bIsSegmented) {
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// Data start point on segmented cards
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i = 22;
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// decode segments
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for (segmentNum=1; segmentNum < 128; segmentNum++ )
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{
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segment_len = ((data[i+1] ^ crc) & 0x0f) * 256 + (data[i] ^ crc);
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segment_flag = ((data[i+1] ^ crc) & 0xf0) >> 4;
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wrp = (data[i+2] ^ crc);
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wrc = ((data[i+3] ^ crc) & 0x70) >> 4;
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bool hasWRC = (wrc > 0);
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bool hasWRP = (wrp > wrc);
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int wrp_len = (wrp - wrc);
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int remain_seg_payload_len = (segment_len - wrp - 5);
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// validate segment-crc
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segCrcBytes[0]=data[0]; //uid0
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segCrcBytes[1]=data[1]; //uid1
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segCrcBytes[2]=data[2]; //uid2
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segCrcBytes[3]=data[3]; //uid3
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segCrcBytes[4]=(data[i] ^ crc); //hdr0
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segCrcBytes[5]=(data[i+1] ^ crc); //hdr1
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segCrcBytes[6]=(data[i+2] ^ crc); //hdr2
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segCrcBytes[7]=(data[i+3] ^ crc); //hdr3
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segCalcCRC = CRC8Legic(segCrcBytes, 8);
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segCRC = data[i+4] ^ crc;
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PrintAndLog("Segment %02u \nraw header | 0x%02X 0x%02X 0x%02X 0x%02X \nSegment len: %u, Flag: 0x%X (valid:%01u, last:%01u), WRP: %02u, WRC: %02u, RD: %01u, CRC: 0x%02X (%s)",
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segmentNum,
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data[i] ^ crc,
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data[i+1] ^ crc,
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data[i+2] ^ crc,
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data[i+3] ^ crc,
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segment_len,
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segment_flag,
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(segment_flag & 0x4) >> 2,
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(segment_flag & 0x8) >> 3,
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wrp,
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wrc,
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((data[i+3]^crc) & 0x80) >> 7,
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segCRC,
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( segCRC == segCalcCRC ) ? "OK" : "fail"
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);
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i += 5;
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if ( hasWRC ) {
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PrintAndLog("WRC protected area: (I %d | K %d| WRC %d)", i, k, wrc);
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PrintAndLog("\nrow | data");
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PrintAndLog("-----+------------------------------------------------");
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for ( k=i; k < (i + wrc); ++k)
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data[k] ^= crc;
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print_hex_break( data+i, wrc, 16);
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i += wrc;
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}
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if ( hasWRP ) {
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PrintAndLog("Remaining write protected area: (I %d | K %d | WRC %d | WRP %d WRP_LEN %d)",i, k, wrc, wrp, wrp_len);
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PrintAndLog("\nrow | data");
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PrintAndLog("-----+------------------------------------------------");
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for (k=i; k < (i+wrp_len); ++k)
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data[k] ^= crc;
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print_hex_break( data+i, wrp_len, 16);
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i += wrp_len;
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// does this one work? (Answer: Only if KGH/BGH is used with BCD encoded card number! So maybe this will show just garbage...)
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if( wrp_len == 8 )
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PrintAndLog("Card ID: %2X%02X%02X", data[i-4]^crc, data[i-3]^crc, data[i-2]^crc);
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}
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PrintAndLog("Remaining segment payload: (I %d | K %d | Remain LEN %d)", i, k, remain_seg_payload_len);
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PrintAndLog("\nrow | data");
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PrintAndLog("-----+------------------------------------------------");
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for ( k=i; k < (i+remain_seg_payload_len); ++k)
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data[k] ^= crc;
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print_hex_break( data+i, remain_seg_payload_len, 16);
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i += remain_seg_payload_len;
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PrintAndLog("-----+------------------------------------------------\n");
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// end with last segment
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if (segment_flag & 0x8)
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goto out;
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} // end for loop
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} else {
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// Data start point on unsegmented cards
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i = 8;
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wrp = data[7] & 0x0F;
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wrc = (data[7] & 0x70) >> 4;
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bool hasWRC = (wrc > 0);
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bool hasWRP = (wrp > wrc);
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int wrp_len = (wrp - wrc);
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int remain_seg_payload_len = (1024 - 22 - wrp); // Any chance to get physical card size here!?
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PrintAndLog("Unsegmented card - WRP: %02u, WRC: %02u, RD: %01u",
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wrp,
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wrc,
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(data[7] & 0x80) >> 7
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);
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if ( hasWRC ) {
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PrintAndLog("WRC protected area: (I %d | WRC %d)", i, wrc);
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PrintAndLog("\nrow | data");
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PrintAndLog("-----+------------------------------------------------");
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print_hex_break( data+i, wrc, 16);
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i += wrc;
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}
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if ( hasWRP ) {
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PrintAndLog("Remaining write protected area: (I %d | WRC %d | WRP %d | WRP_LEN %d)", i, wrc, wrp, wrp_len);
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PrintAndLog("\nrow | data");
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PrintAndLog("-----+------------------------------------------------");
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print_hex_break( data + i, wrp_len, 16);
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i += wrp_len;
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|
|
// does this one work? (Answer: Only if KGH/BGH is used with BCD encoded card number! So maybe this will show just garbage...)
|
|
if( wrp_len == 8 )
|
|
PrintAndLog("Card ID: %2X%02X%02X", data[i-4], data[i-3], data[i-2]);
|
|
}
|
|
|
|
PrintAndLog("Remaining segment payload: (I %d | Remain LEN %d)", i, remain_seg_payload_len);
|
|
PrintAndLog("\nrow | data");
|
|
PrintAndLog("-----+------------------------------------------------");
|
|
print_hex_break( data + i, remain_seg_payload_len, 16);
|
|
i += remain_seg_payload_len;
|
|
|
|
PrintAndLog("-----+------------------------------------------------\n");
|
|
}
|
|
|
|
out:
|
|
free(data);
|
|
return 0;
|
|
}
|
|
|
|
// params:
|
|
// offset in data memory
|
|
// number of bytes to read
|
|
int CmdLegicRdmem(const char *Cmd) {
|
|
|
|
char cmdp = param_getchar(Cmd, 0);
|
|
if ( cmdp == 'H' || cmdp == 'h' ) return usage_legic_rdmem();
|
|
|
|
uint32_t offset = 0, len = 0, iv = 1;
|
|
uint16_t datalen = 0;
|
|
sscanf(Cmd, "%x %x %x", &offset, &len, &iv);
|
|
|
|
PrintAndLog("Reading %d bytes, from offset %d", len, offset);
|
|
|
|
// allocate receiver buffer
|
|
uint8_t *data = malloc(len);
|
|
if ( !data ){
|
|
PrintAndLog("Cannot allocate memory");
|
|
return 2;
|
|
}
|
|
memset(data, 0, len);
|
|
|
|
int status = legic_read_mem(offset, len, iv, data, &datalen);
|
|
if ( status == 0 ) {
|
|
PrintAndLog("\n ## | 0 1 2 3 4 5 6 7 8 9 A B C D E F 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F");
|
|
PrintAndLog("-----+------------------------------------------------------------------------------------------------");
|
|
print_hex_break(data, datalen, 32);
|
|
}
|
|
free(data);
|
|
return status;
|
|
}
|
|
|
|
// should say which tagtype
|
|
// should load a tag to device mem.
|
|
// int phase, int frame, int reqresp
|
|
int CmdLegicRfSim(const char *Cmd) {
|
|
UsbCommand c = {CMD_SIMULATE_TAG_LEGIC_RF, {6,3,0}};
|
|
sscanf(Cmd, " %" SCNi64 " %" SCNi64 " %" SCNi64 , &c.arg[0], &c.arg[1], &c.arg[2]);
|
|
clearCommandBuffer();
|
|
SendCommand(&c);
|
|
return 0;
|
|
}
|
|
|
|
int CmdLegicRfWrite(const char *Cmd) {
|
|
|
|
uint8_t *data = NULL;
|
|
uint8_t cmdp = 0;
|
|
bool errors = false;
|
|
int len = 0, bg, en;
|
|
uint32_t offset = 0, IV = 0x55;
|
|
|
|
while(param_getchar(Cmd, cmdp) != 0x00 && !errors) {
|
|
switch(param_getchar(Cmd, cmdp)) {
|
|
case 'd':
|
|
case 'D':
|
|
// peek at length of the input string so we can
|
|
// figure out how many elements to malloc in "data"
|
|
bg=en=0;
|
|
if (param_getptr(Cmd, &bg, &en, cmdp+1)) {
|
|
errors = true;
|
|
break;
|
|
}
|
|
len = (en - bg + 1);
|
|
|
|
// check that user entered even number of characters
|
|
// for hex data string
|
|
if (len & 1) {
|
|
errors = true;
|
|
break;
|
|
}
|
|
|
|
// limit number of bytes to write. This is not a 'restore' command.
|
|
if ( (len>>1) > 100 ){
|
|
PrintAndLog("Max bound on 100bytes to write a one time.");
|
|
PrintAndLog("Use the 'hf legic restore' command if you want to write the whole tag at once");
|
|
errors = true;
|
|
}
|
|
|
|
// it's possible for user to accidentally enter "b" parameter
|
|
// more than once - we have to clean previous malloc
|
|
if (data)
|
|
free(data);
|
|
|
|
data = malloc(len >> 1);
|
|
if ( data == NULL ) {
|
|
PrintAndLog("Can't allocate memory. exiting");
|
|
errors = true;
|
|
break;
|
|
}
|
|
|
|
if (param_gethex(Cmd, cmdp+1, data, len)) {
|
|
errors = true;
|
|
break;
|
|
}
|
|
|
|
len >>= 1;
|
|
cmdp += 2;
|
|
break;
|
|
case 'o':
|
|
case 'O':
|
|
offset = param_get32ex(Cmd, cmdp+1, 4, 16);
|
|
cmdp += 2;
|
|
break;
|
|
case 'h':
|
|
case 'H':
|
|
errors = true;
|
|
break;
|
|
default:
|
|
PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
|
|
errors = true;
|
|
break;
|
|
}
|
|
}
|
|
//Validations
|
|
if (errors || cmdp == 0){
|
|
if (data)
|
|
free(data);
|
|
return usage_legic_write();
|
|
}
|
|
|
|
// tagtype
|
|
legic_card_select_t card;
|
|
if (legic_get_type(&card)) {
|
|
PrintAndLog("Failed to identify tagtype");
|
|
return -1;
|
|
}
|
|
|
|
legic_print_type(card.cardsize, 0);
|
|
|
|
// OUT-OF-BOUNDS checks
|
|
// UID 4+1 bytes can't be written to.
|
|
if ( offset < 5 ) {
|
|
PrintAndLog("Out-of-bounds, bytes 0-1-2-3-4 can't be written to. Offset = %d", offset);
|
|
return -2;
|
|
}
|
|
|
|
if ( len + offset >= card.cardsize ) {
|
|
PrintAndLog("Out-of-bounds, Cardsize = %d, [offset+len = %d ]", card.cardsize, len + offset);
|
|
return -2;
|
|
}
|
|
|
|
if (offset == 5 || offset == 6) {
|
|
PrintAndLog("############# DANGER ################");
|
|
PrintAndLog("# changing the DCF is irreversible #");
|
|
PrintAndLog("#####################################");
|
|
char *answer = NULL;
|
|
answer = readline("do you really want to continue? y(es) n(o) : ");
|
|
bool overwrite = (answer[0] == 'y' || answer[0] == 'Y');
|
|
if (!overwrite){
|
|
PrintAndLog("command cancelled");
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
legic_chk_iv(&IV);
|
|
|
|
PrintAndLog("Writing to tag");
|
|
|
|
UsbCommand c = {CMD_WRITER_LEGIC_RF, {offset, len, IV}};
|
|
memcpy(c.d.asBytes, data, len);
|
|
UsbCommand resp;
|
|
clearCommandBuffer();
|
|
SendCommand(&c);
|
|
|
|
if (!WaitForResponseTimeout(CMD_ACK, &resp, 2000)) {
|
|
PrintAndLog("command execution time out");
|
|
return 1;
|
|
}
|
|
uint8_t isOK = resp.arg[0] & 0xFF;
|
|
if ( !isOK ) {
|
|
PrintAndLog("failed writing tag");
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int CmdLegicCalcCrc(const char *Cmd){
|
|
|
|
uint8_t *data = NULL;
|
|
uint8_t cmdp = 0, uidcrc = 0, type=0;
|
|
bool errors = false;
|
|
int len = 0;
|
|
int bg, en;
|
|
|
|
while(param_getchar(Cmd, cmdp) != 0x00 && !errors) {
|
|
switch(param_getchar(Cmd, cmdp)) {
|
|
case 'd':
|
|
case 'D':
|
|
// peek at length of the input string so we can
|
|
// figure out how many elements to malloc in "data"
|
|
bg=en=0;
|
|
if (param_getptr(Cmd, &bg, &en, cmdp+1)) {
|
|
errors = true;
|
|
break;
|
|
}
|
|
len = (en - bg + 1);
|
|
|
|
// check that user entered even number of characters
|
|
// for hex data string
|
|
if (len & 1) {
|
|
errors = true;
|
|
break;
|
|
}
|
|
|
|
// it's possible for user to accidentally enter "b" parameter
|
|
// more than once - we have to clean previous malloc
|
|
if (data) free(data);
|
|
data = malloc(len >> 1);
|
|
if ( data == NULL ) {
|
|
PrintAndLog("Can't allocate memory. exiting");
|
|
errors = true;
|
|
break;
|
|
}
|
|
|
|
if (param_gethex(Cmd, cmdp+1, data, len)) {
|
|
errors = true;
|
|
break;
|
|
}
|
|
|
|
len >>= 1;
|
|
cmdp += 2;
|
|
break;
|
|
case 'u':
|
|
case 'U':
|
|
uidcrc = param_get8ex(Cmd, cmdp+1, 0, 16);
|
|
cmdp += 2;
|
|
break;
|
|
case 'c':
|
|
case 'C':
|
|
type = param_get8ex(Cmd, cmdp+1, 0, 10);
|
|
cmdp += 2;
|
|
break;
|
|
case 'h':
|
|
case 'H':
|
|
errors = true;
|
|
break;
|
|
default:
|
|
PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
|
|
errors = true;
|
|
break;
|
|
}
|
|
}
|
|
//Validations
|
|
if (errors || cmdp == 0){
|
|
if (data) free(data);
|
|
return usage_legic_calccrc();
|
|
}
|
|
|
|
switch (type){
|
|
case 16:
|
|
init_table(CRC_LEGIC);
|
|
PrintAndLog("Legic crc16: %X", crc16_legic(data, len, uidcrc));
|
|
break;
|
|
default:
|
|
PrintAndLog("Legic crc8: %X", CRC8Legic(data, len) );
|
|
break;
|
|
}
|
|
|
|
if (data) free(data);
|
|
return 0;
|
|
}
|
|
|
|
int legic_read_mem(uint32_t offset, uint32_t len, uint32_t iv, uint8_t *out, uint16_t *outlen) {
|
|
|
|
legic_chk_iv(&iv);
|
|
|
|
UsbCommand c = {CMD_READER_LEGIC_RF, {offset, len, iv}};
|
|
clearCommandBuffer();
|
|
SendCommand(&c);
|
|
UsbCommand resp;
|
|
if ( !WaitForResponseTimeout(CMD_ACK, &resp, 3000) ) {
|
|
PrintAndLog("command execution time out");
|
|
return 1;
|
|
}
|
|
|
|
uint8_t isOK = resp.arg[0] & 0xFF;
|
|
*outlen = resp.arg[1];
|
|
if ( !isOK ) {
|
|
PrintAndLog("failed reading tag");
|
|
return 2;
|
|
}
|
|
|
|
if ( *outlen != len )
|
|
PrintAndLog("Fail, only managed to read %u bytes", *outlen);
|
|
|
|
// copy data from device
|
|
if ( !GetEMLFromBigBuf(out, *outlen, 0) ) {
|
|
PrintAndLog("Fail, transfer from device time-out");
|
|
return 4;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int legic_print_type(uint32_t tagtype, uint8_t spaces){
|
|
char spc[11] = " ";
|
|
spc[10]=0x00;
|
|
char *spacer = spc + (10-spaces);
|
|
|
|
if ( tagtype == 22 )
|
|
PrintAndLog("%sTYPE : MIM%d card (outdated)", spacer, tagtype);
|
|
else if ( tagtype == 256 )
|
|
PrintAndLog("%sTYPE : MIM%d card (234 bytes)", spacer, tagtype);
|
|
else if ( tagtype == 1024 )
|
|
PrintAndLog("%sTYPE : MIM%d card (1002 bytes)", spacer, tagtype);
|
|
else
|
|
PrintAndLog("%sTYPE : Unknown %06x", spacer, tagtype);
|
|
return 0;
|
|
}
|
|
int legic_get_type(legic_card_select_t *card){
|
|
|
|
if ( card == NULL ) return 1;
|
|
|
|
UsbCommand c = {CMD_LEGIC_INFO, {0,0,0}};
|
|
clearCommandBuffer();
|
|
SendCommand(&c);
|
|
UsbCommand resp;
|
|
if (!WaitForResponseTimeout(CMD_ACK, &resp, 500))
|
|
return 2;
|
|
|
|
uint8_t isOK = resp.arg[0] & 0xFF;
|
|
if ( !isOK )
|
|
return 3;
|
|
|
|
memcpy(card, (legic_card_select_t *)resp.d.asBytes, sizeof(legic_card_select_t));
|
|
return 0;
|
|
}
|
|
void legic_chk_iv(uint32_t *iv){
|
|
if ( (*iv & 0x7F) != *iv ){
|
|
*iv &= 0x7F;
|
|
PrintAndLog("Truncating IV to 7bits, %u", *iv);
|
|
}
|
|
// IV must be odd
|
|
if ( (*iv & 1) == 0 ){
|
|
*iv |= 0x01;
|
|
PrintAndLog("LSB of IV must be SET %u", *iv);
|
|
}
|
|
}
|
|
void legic_seteml(uint8_t *src, uint32_t offset, uint32_t numofbytes) {
|
|
size_t len = 0;
|
|
|
|
UsbCommand c = {CMD_LEGIC_ESET, {0, 0, 0}};
|
|
for(size_t i = offset; i < numofbytes; i += USB_CMD_DATA_SIZE) {
|
|
|
|
len = MIN((numofbytes - i), USB_CMD_DATA_SIZE);
|
|
c.arg[0] = i; // offset
|
|
c.arg[1] = len; // number of bytes
|
|
memcpy(c.d.asBytes, src+i, len);
|
|
clearCommandBuffer();
|
|
SendCommand(&c);
|
|
}
|
|
}
|
|
|
|
|
|
int HFLegicReader(const char *Cmd, bool verbose) {
|
|
|
|
char cmdp = param_getchar(Cmd, 0);
|
|
if ( cmdp == 'H' || cmdp == 'h' ) return usage_legic_reader();
|
|
|
|
legic_card_select_t card;
|
|
switch(legic_get_type(&card)){
|
|
case 1:
|
|
return 2;
|
|
case 2:
|
|
if ( verbose ) PrintAndLog("command execution time out");
|
|
return 1;
|
|
case 3:
|
|
if ( verbose ) PrintAndLog("legic card select failed");
|
|
return 2;
|
|
default: break;
|
|
}
|
|
PrintAndLog(" UID : %s", sprint_hex(card.uid, sizeof(card.uid)));
|
|
legic_print_type(card.cardsize, 0);
|
|
return 0;
|
|
}
|
|
int CmdLegicReader(const char *Cmd){
|
|
return HFLegicReader(Cmd, true);
|
|
}
|
|
|
|
int CmdLegicDump(const char *Cmd){
|
|
|
|
FILE *f;
|
|
char filename[FILE_PATH_SIZE] = {0x00};
|
|
char *fnameptr = filename;
|
|
size_t fileNlen = 0;
|
|
bool errors = false;
|
|
uint16_t dumplen;
|
|
uint8_t cmdp = 0;
|
|
|
|
memset(filename, 0, sizeof(filename));
|
|
|
|
while(param_getchar(Cmd, cmdp) != 0x00 && !errors) {
|
|
switch(param_getchar(Cmd, cmdp)) {
|
|
case 'h':
|
|
case 'H':
|
|
return usage_legic_dump();
|
|
case 'o':
|
|
case 'O':
|
|
fileNlen = param_getstr(Cmd, cmdp+1, filename, FILE_PATH_SIZE);
|
|
if (!fileNlen)
|
|
errors = true;
|
|
if (fileNlen > FILE_PATH_SIZE-5)
|
|
fileNlen = FILE_PATH_SIZE-5;
|
|
cmdp += 2;
|
|
break;
|
|
default:
|
|
PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
|
|
errors = true;
|
|
break;
|
|
}
|
|
}
|
|
//Validations
|
|
if (errors) return usage_legic_dump();
|
|
|
|
// tagtype
|
|
legic_card_select_t card;
|
|
if (legic_get_type(&card)) {
|
|
PrintAndLog("Failed to identify tagtype");
|
|
return -1;
|
|
}
|
|
dumplen = card.cardsize;
|
|
|
|
legic_print_type(dumplen, 0);
|
|
PrintAndLog("Reading tag memory %d b...", dumplen);
|
|
|
|
UsbCommand c = {CMD_READER_LEGIC_RF, {0x00, dumplen, 0x55}};
|
|
clearCommandBuffer();
|
|
SendCommand(&c);
|
|
UsbCommand resp;
|
|
if (!WaitForResponseTimeout(CMD_ACK, &resp, 3000)) {
|
|
PrintAndLog("Command execute time-out");
|
|
return 1;
|
|
}
|
|
|
|
uint8_t isOK = resp.arg[0] & 0xFF;
|
|
if ( !isOK ) {
|
|
PrintAndLog("Failed dumping tag data");
|
|
return 2;
|
|
}
|
|
|
|
uint16_t readlen = resp.arg[1];
|
|
uint8_t *data = malloc(readlen);
|
|
if (!data) {
|
|
PrintAndLog("Fail, cannot allocate memory");
|
|
return 3;
|
|
}
|
|
memset(data, 0, readlen);
|
|
|
|
if ( readlen != dumplen )
|
|
PrintAndLog("Fail, only managed to read 0x%02X bytes of 0x%02X", readlen, dumplen);
|
|
|
|
// copy data from device
|
|
if (!GetEMLFromBigBuf(data, readlen, 0) ) {
|
|
PrintAndLog("Fail, transfer from device time-out");
|
|
free(data);
|
|
return 4;
|
|
}
|
|
|
|
// user supplied filename?
|
|
if (fileNlen < 1)
|
|
sprintf(fnameptr,"%02X%02X%02X%02X.bin", data[0], data[1], data[2], data[3]);
|
|
else
|
|
sprintf(fnameptr + fileNlen,".bin");
|
|
|
|
f = fopen(filename,"wb");
|
|
if (!f) {
|
|
PrintAndLog("Could not create file name %s", filename);
|
|
if (data)
|
|
free(data);
|
|
return 5;
|
|
}
|
|
fwrite(data, 1, readlen, f);
|
|
fflush(f);
|
|
fclose(f);
|
|
free(data);
|
|
PrintAndLog("Wrote %d bytes to %s", readlen, filename);
|
|
return 0;
|
|
}
|
|
|
|
int CmdLegicRestore(const char *Cmd){
|
|
|
|
FILE *f;
|
|
char filename[FILE_PATH_SIZE] = {0x00};
|
|
char *fnameptr = filename;
|
|
size_t fileNlen = 0;
|
|
bool errors = false;
|
|
uint16_t numofbytes;
|
|
uint8_t cmdp = 0;
|
|
|
|
memset(filename, 0, sizeof(filename));
|
|
|
|
while(param_getchar(Cmd, cmdp) != 0x00 && !errors) {
|
|
switch(param_getchar(Cmd, cmdp)) {
|
|
case 'h':
|
|
case 'H':
|
|
errors = true;
|
|
break;
|
|
case 'i':
|
|
case 'I':
|
|
fileNlen = param_getstr(Cmd, cmdp+1, filename, FILE_PATH_SIZE);
|
|
if (!fileNlen)
|
|
errors = true;
|
|
|
|
if (fileNlen > FILE_PATH_SIZE-5)
|
|
fileNlen = FILE_PATH_SIZE-5;
|
|
cmdp += 2;
|
|
break;
|
|
default:
|
|
PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
|
|
errors = true;
|
|
break;
|
|
}
|
|
}
|
|
//Validations
|
|
if (errors || cmdp == 0) return usage_legic_restore();
|
|
|
|
// tagtype
|
|
legic_card_select_t card;
|
|
if (legic_get_type(&card)) {
|
|
PrintAndLog("Failed to identify tagtype");
|
|
return 1;
|
|
}
|
|
numofbytes = card.cardsize;
|
|
|
|
// set up buffer
|
|
uint8_t *data = malloc(numofbytes);
|
|
if (!data) {
|
|
PrintAndLog("Fail, cannot allocate memory");
|
|
return 2;
|
|
}
|
|
memset(data, 0, numofbytes);
|
|
|
|
legic_print_type(numofbytes, 0);
|
|
|
|
// set up file
|
|
fnameptr += fileNlen;
|
|
sprintf(fnameptr, ".bin");
|
|
|
|
f = fopen(filename,"rb");
|
|
if (!f) {
|
|
PrintAndLog("File %s not found or locked", filename);
|
|
return 3;
|
|
}
|
|
|
|
// verify size of dumpfile is the same as card.
|
|
fseek(f, 0, SEEK_END); // seek to end of file
|
|
size_t filesize = ftell(f); // get current file pointer
|
|
fseek(f, 0, SEEK_SET); // seek back to beginning of file
|
|
|
|
if ( filesize != numofbytes) {
|
|
PrintAndLog("Fail, filesize and cardsize is not equal. [%u != %u]", filesize, numofbytes);
|
|
free(data);
|
|
fclose(f);
|
|
return 4;
|
|
}
|
|
|
|
// load file
|
|
size_t bytes_read = fread(data, 1, numofbytes, f);
|
|
fclose(f);
|
|
|
|
if ( bytes_read == 0){
|
|
PrintAndLog("File reading error");
|
|
free(data);
|
|
return 2;
|
|
}
|
|
|
|
PrintAndLog("Restoring to card");
|
|
|
|
// transfer to device
|
|
size_t len = 0;
|
|
UsbCommand c = {CMD_WRITER_LEGIC_RF, {0, 0, 0x55}};
|
|
UsbCommand resp;
|
|
for(size_t i = 7; i < numofbytes; i += USB_CMD_DATA_SIZE) {
|
|
|
|
len = MIN((numofbytes - i), USB_CMD_DATA_SIZE);
|
|
c.arg[0] = i; // offset
|
|
c.arg[1] = len; // number of bytes
|
|
memcpy(c.d.asBytes, data+i, len);
|
|
clearCommandBuffer();
|
|
SendCommand(&c);
|
|
|
|
if (!WaitForResponseTimeout(CMD_ACK, &resp, 4000)) {
|
|
PrintAndLog("command execution time out");
|
|
free(data);
|
|
return 1;
|
|
}
|
|
uint8_t isOK = resp.arg[0] & 0xFF;
|
|
if ( !isOK ) {
|
|
PrintAndLog("failed writing tag [msg = %u]", resp.arg[1] & 0xFF);
|
|
free(data);
|
|
return 1;
|
|
}
|
|
PrintAndLog("Wrote chunk [offset %d | len %d | total %d", i, len, i+len);
|
|
}
|
|
|
|
free(data);
|
|
PrintAndLog("\nWrote %d bytes to card from file %s", numofbytes, filename);
|
|
return 0;
|
|
}
|
|
|
|
int CmdLegicELoad(const char *Cmd) {
|
|
FILE * f;
|
|
char filename[FILE_PATH_SIZE];
|
|
char *fnameptr = filename;
|
|
int len, numofbytes;
|
|
int nameParamNo = 1;
|
|
|
|
char cmdp = param_getchar(Cmd, 0);
|
|
if ( cmdp == 'h' || cmdp == 'H' || cmdp == 0x00)
|
|
return usage_legic_eload();
|
|
|
|
switch (cmdp) {
|
|
case '0' : numofbytes = 22; break;
|
|
case '1' :
|
|
case '\0': numofbytes = 256; break;
|
|
case '2' : numofbytes = 1024; break;
|
|
default : numofbytes = 256; nameParamNo = 0;break;
|
|
}
|
|
|
|
// set up buffer
|
|
uint8_t *data = malloc(numofbytes);
|
|
if (!data) {
|
|
PrintAndLog("Fail, cannot allocate memory");
|
|
return 3;
|
|
}
|
|
memset(data, 0, numofbytes);
|
|
|
|
// set up file
|
|
len = param_getstr(Cmd, nameParamNo, filename, FILE_PATH_SIZE);
|
|
if (len > FILE_PATH_SIZE - 5)
|
|
len = FILE_PATH_SIZE - 5;
|
|
fnameptr += len;
|
|
sprintf(fnameptr, ".bin");
|
|
|
|
// open file
|
|
f = fopen(filename,"rb");
|
|
if (!f) {
|
|
PrintAndLog("File %s not found or locked", filename);
|
|
free(data);
|
|
return 1;
|
|
}
|
|
|
|
// load file
|
|
size_t bytes_read = fread(data, 1, numofbytes, f);
|
|
if ( bytes_read == 0){
|
|
PrintAndLog("File reading error");
|
|
free(data);
|
|
fclose(f);
|
|
f = NULL;
|
|
return 2;
|
|
}
|
|
fclose(f);
|
|
f = NULL;
|
|
|
|
// transfer to device
|
|
legic_seteml(data, 0, numofbytes);
|
|
|
|
free(data);
|
|
PrintAndLog("\nLoaded %d bytes from file: %s to emulator memory", numofbytes, filename);
|
|
return 0;
|
|
}
|
|
|
|
int CmdLegicESave(const char *Cmd) {
|
|
FILE *f;
|
|
char filename[FILE_PATH_SIZE];
|
|
char *fnameptr = filename;
|
|
int fileNlen, numofbytes, nameParamNo = 1;
|
|
|
|
memset(filename, 0, sizeof(filename));
|
|
|
|
char cmdp = param_getchar(Cmd, 0);
|
|
|
|
if ( cmdp == 'h' || cmdp == 'H' || cmdp == 0x00)
|
|
return usage_legic_esave();
|
|
|
|
switch (cmdp) {
|
|
case '0' : numofbytes = 22; break;
|
|
case '1' :
|
|
case '\0': numofbytes = 256; break;
|
|
case '2' : numofbytes = 1024; break;
|
|
default : numofbytes = 256; nameParamNo = 0; break;
|
|
}
|
|
|
|
fileNlen = param_getstr(Cmd, nameParamNo, filename, FILE_PATH_SIZE);
|
|
|
|
if (fileNlen > FILE_PATH_SIZE - 5)
|
|
fileNlen = FILE_PATH_SIZE - 5;
|
|
|
|
// set up buffer
|
|
uint8_t *data = malloc(numofbytes);
|
|
if (!data) {
|
|
PrintAndLog("Fail, cannot allocate memory");
|
|
return 3;
|
|
}
|
|
memset(data, 0, numofbytes);
|
|
|
|
// download emulator memory
|
|
PrintAndLog("Reading emulator memory...");
|
|
if (!GetEMLFromBigBuf(data, numofbytes, 0)) {
|
|
PrintAndLog("Fail, transfer from device time-out");
|
|
free(data);
|
|
return 4;
|
|
}
|
|
|
|
// user supplied filename?
|
|
if (fileNlen < 1)
|
|
sprintf(fnameptr,"%02X%02X%02X%02X.bin", data[0], data[1], data[2], data[3]);
|
|
else
|
|
sprintf(fnameptr + fileNlen,".bin");
|
|
|
|
// open file
|
|
f = fopen(filename,"wb");
|
|
if (!f) {
|
|
PrintAndLog("Could not create file name %s", filename);
|
|
free(data);
|
|
return 1;
|
|
}
|
|
fwrite(data, 1, numofbytes, f);
|
|
fclose(f);
|
|
free(data);
|
|
PrintAndLog("\nSaved %d bytes from emulator memory to file: %s", numofbytes, filename);
|
|
return 0;
|
|
}
|
|
|
|
int CmdLegicWipe(const char *Cmd){
|
|
|
|
char cmdp = param_getchar(Cmd, 0);
|
|
|
|
if ( cmdp == 'h' || cmdp == 'H') return usage_legic_wipe();
|
|
|
|
// tagtype
|
|
legic_card_select_t card;
|
|
if (legic_get_type(&card)) {
|
|
PrintAndLog("Failed to identify tagtype");
|
|
return 1;
|
|
}
|
|
|
|
// set up buffer
|
|
uint8_t *data = malloc(card.cardsize);
|
|
if (!data) {
|
|
PrintAndLog("Fail, cannot allocate memory");
|
|
return 2;
|
|
}
|
|
memset(data, 0, card.cardsize);
|
|
|
|
legic_print_type(card.cardsize, 0);
|
|
|
|
printf("Erasing");
|
|
|
|
// transfer to device
|
|
size_t len = 0;
|
|
UsbCommand c = {CMD_WRITER_LEGIC_RF, {0, 0, 0x55}};
|
|
UsbCommand resp;
|
|
for(size_t i = 7; i < card.cardsize; i += USB_CMD_DATA_SIZE) {
|
|
|
|
printf("."); fflush(stdout);
|
|
len = MIN((card.cardsize - i), USB_CMD_DATA_SIZE);
|
|
c.arg[0] = i; // offset
|
|
c.arg[1] = len; // number of bytes
|
|
memcpy(c.d.asBytes, data+i, len);
|
|
clearCommandBuffer();
|
|
SendCommand(&c);
|
|
|
|
if (!WaitForResponseTimeout(CMD_ACK, &resp, 4000)) {
|
|
PrintAndLog("command execution time out");
|
|
free(data);
|
|
return 3;
|
|
}
|
|
uint8_t isOK = resp.arg[0] & 0xFF;
|
|
if ( !isOK ) {
|
|
PrintAndLog("failed writing tag [msg = %u]", resp.arg[1] & 0xFF);
|
|
free(data);
|
|
return 4;
|
|
}
|
|
}
|
|
printf("ok\n");
|
|
return 0;
|
|
}
|
|
|
|
int CmdLegicList(const char *Cmd) {
|
|
CmdHFList("legic");
|
|
return 0;
|
|
}
|
|
|
|
static command_t CommandTable[] = {
|
|
{"help", CmdHelp, 1, "This help"},
|
|
{"reader", CmdLegicReader, 1, "LEGIC Prime Reader UID and tag info"},
|
|
{"info", CmdLegicInfo, 0, "Display deobfuscated and decoded LEGIC Prime tag data"},
|
|
{"dump", CmdLegicDump, 0, "Dump LEGIC Prime tag to binary file"},
|
|
{"restore", CmdLegicRestore, 0, "Restore a dump onto a LEGIC Prime tag"},
|
|
{"rdmem", CmdLegicRdmem, 0, "Read bytes from a LEGIC Prime tag"},
|
|
{"sim", CmdLegicRfSim, 0, "Start tag simulator"},
|
|
{"write", CmdLegicRfWrite, 0, "Write data to a LEGIC Prime tag"},
|
|
{"crc", CmdLegicCalcCrc, 1, "Calculate Legic CRC over given bytes"},
|
|
{"eload", CmdLegicELoad, 1, "Load binary dump to emulator memory"},
|
|
{"esave", CmdLegicESave, 1, "Save emulator memory to binary file"},
|
|
{"list", CmdLegicList, 1, "[Deprecated] List LEGIC history"},
|
|
{"wipe", CmdLegicWipe, 1, "Wipe a LEGIC Prime tag"},
|
|
{NULL, NULL, 0, NULL}
|
|
};
|
|
|
|
int CmdHFLegic(const char *Cmd) {
|
|
clearCommandBuffer();
|
|
CmdsParse(CommandTable, Cmd);
|
|
return 0;
|
|
}
|
|
|
|
int CmdHelp(const char *Cmd) {
|
|
CmdsHelp(CommandTable);
|
|
return 0;
|
|
} |