//----------------------------------------------------------------------------- // Copyright (C) Merlok - 2017 // // 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. //----------------------------------------------------------------------------- // Command: hf mf list. It shows data from arm buffer. //----------------------------------------------------------------------------- #include "cmdhflist.h" #include #include #include #include #include #include "util.h" #include "data.h" #include "ui.h" #include "iso14443crc.h" #include "parity.h" #include "protocols.h" enum MifareAuthSeq { masNone, masNt, masNrAr, masAt, masFirstData, masData, masDataNested, masError, }; static enum MifareAuthSeq MifareAuthState; static TAuthData AuthData; void ClearAuthData() { AuthData.uid = 0; AuthData.nt = 0; AuthData.first_auth = false; } /** * @brief iso14443A_CRC_check Checks CRC in command or response * @param isResponse * @param data * @param len * @return 0 : CRC-command, CRC not ok * 1 : CRC-command, CRC ok * 2 : Not crc-command */ uint8_t iso14443A_CRC_check(bool isResponse, uint8_t* data, uint8_t len) { uint8_t b1,b2; if(len <= 2) return 2; if(isResponse & (len < 6)) return 2; ComputeCrc14443(CRC_14443_A, data, len-2, &b1, &b2); if (b1 != data[len-2] || b2 != data[len-1]) { return 0; } else { return 1; } } uint8_t mifare_CRC_check(bool isResponse, uint8_t* data, uint8_t len) { switch(MifareAuthState) { case masNone: case masFirstData: case masData: case masDataNested: case masError: return iso14443A_CRC_check(isResponse, data, len); default: return 2; } } void annotateIso14443a(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) { switch(cmd[0]) { case ISO14443A_CMD_WUPA: snprintf(exp,size,"WUPA"); break; case ISO14443A_CMD_ANTICOLL_OR_SELECT:{ // 93 20 = Anticollision (usage: 9320 - answer: 4bytes UID+1byte UID-bytes-xor) // 93 70 = Select (usage: 9370+5bytes 9320 answer - answer: 1byte SAK) if(cmd[1] == 0x70) { snprintf(exp,size,"SELECT_UID"); break; }else { snprintf(exp,size,"ANTICOLL"); break; } } case ISO14443A_CMD_ANTICOLL_OR_SELECT_2:{ //95 20 = Anticollision of cascade level2 //95 70 = Select of cascade level2 if(cmd[2] == 0x70) { snprintf(exp,size,"SELECT_UID-2"); break; }else { snprintf(exp,size,"ANTICOLL-2"); break; } } case ISO14443A_CMD_REQA: snprintf(exp,size,"REQA"); break; case ISO14443A_CMD_READBLOCK: snprintf(exp,size,"READBLOCK(%d)",cmd[1]); break; case ISO14443A_CMD_WRITEBLOCK: snprintf(exp,size,"WRITEBLOCK(%d)",cmd[1]); break; case ISO14443A_CMD_HALT: snprintf(exp,size,"HALT"); MifareAuthState = masNone; break; case ISO14443A_CMD_RATS: snprintf(exp,size,"RATS"); break; case MIFARE_CMD_INC: snprintf(exp,size,"INC(%d)",cmd[1]); break; case MIFARE_CMD_DEC: snprintf(exp,size,"DEC(%d)",cmd[1]); break; case MIFARE_CMD_RESTORE: snprintf(exp,size,"RESTORE(%d)",cmd[1]); break; case MIFARE_CMD_TRANSFER: snprintf(exp,size,"TRANSFER(%d)",cmd[1]); break; case MIFARE_AUTH_KEYA: if ( cmdsize > 3) { snprintf(exp,size,"AUTH-A(%d)",cmd[1]); MifareAuthState = masNt; } else { // case MIFARE_ULEV1_VERSION : both 0x60. snprintf(exp,size,"EV1 VERSION"); } break; case MIFARE_AUTH_KEYB: MifareAuthState = masNt; snprintf(exp,size,"AUTH-B(%d)",cmd[1]); break; case MIFARE_MAGICWUPC1: snprintf(exp,size,"MAGIC WUPC1"); break; case MIFARE_MAGICWUPC2: snprintf(exp,size,"MAGIC WUPC2"); break; case MIFARE_MAGICWIPEC: snprintf(exp,size,"MAGIC WIPEC"); break; case MIFARE_ULC_AUTH_1: snprintf(exp,size,"AUTH "); break; case MIFARE_ULC_AUTH_2: snprintf(exp,size,"AUTH_ANSW"); break; case MIFARE_ULEV1_AUTH: if ( cmdsize == 7 ) snprintf(exp,size,"PWD-AUTH KEY: 0x%02x%02x%02x%02x", cmd[1], cmd[2], cmd[3], cmd[4] ); else snprintf(exp,size,"PWD-AUTH"); break; case MIFARE_ULEV1_FASTREAD:{ if ( cmdsize >=3 && cmd[2] <= 0xE6) snprintf(exp,size,"READ RANGE (%d-%d)",cmd[1],cmd[2]); else snprintf(exp,size,"?"); break; } case MIFARE_ULC_WRITE:{ if ( cmd[1] < 0x21 ) snprintf(exp,size,"WRITEBLOCK(%d)",cmd[1]); else snprintf(exp,size,"?"); break; } case MIFARE_ULEV1_READ_CNT:{ if ( cmd[1] < 5 ) snprintf(exp,size,"READ CNT(%d)",cmd[1]); else snprintf(exp,size,"?"); break; } case MIFARE_ULEV1_INCR_CNT:{ if ( cmd[1] < 5 ) snprintf(exp,size,"INCR(%d)",cmd[1]); else snprintf(exp,size,"?"); break; } case MIFARE_ULEV1_READSIG: snprintf(exp,size,"READ_SIG"); break; case MIFARE_ULEV1_CHECKTEAR: snprintf(exp,size,"CHK_TEARING(%d)",cmd[1]); break; case MIFARE_ULEV1_VCSL: snprintf(exp,size,"VCSL"); break; default: snprintf(exp,size,"?"); break; } return; } void annotateMifare(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize, bool isResponse) { // get UID if (MifareAuthState == masNone) { if (cmdsize == 7 && cmd[0] == ISO14443A_CMD_ANTICOLL_OR_SELECT && cmd[1] == 0x70) { ClearAuthData(); AuthData.uid = bytes_to_num(&cmd[2], 4); } if (cmdsize == 7 && cmd[0] == ISO14443A_CMD_ANTICOLL_OR_SELECT_2 && cmd[1] == 0x70) { ClearAuthData(); AuthData.uid = bytes_to_num(&cmd[2], 4); } } switch(MifareAuthState) { case masNt: if (cmdsize == 4 && isResponse) { snprintf(exp,size,"AUTH: nt %s", (AuthData.first_auth) ? "" : "(enc)"); MifareAuthState = masNrAr; if (AuthData.first_auth) AuthData.nt = bytes_to_num(cmd, cmdsize); else AuthData.nt_enc = bytes_to_num(cmd, cmdsize); return; } else { MifareAuthState = masError; } break; case masNrAr: if (cmdsize == 8 && !isResponse) { snprintf(exp,size,"AUTH: nr ar (enc)"); MifareAuthState = masAt; AuthData.nr_enc = bytes_to_num(cmd, cmdsize); AuthData.ar_enc = bytes_to_num(&cmd[3], cmdsize); return; } else { MifareAuthState = masError; } break; case masAt: if (cmdsize == 4 && isResponse) { snprintf(exp,size,"AUTH: at (enc)"); MifareAuthState = masFirstData; AuthData.at_enc = bytes_to_num(cmd, cmdsize); return; } else { MifareAuthState = masError; } break; default: break; } if (!isResponse) annotateIso14443a(exp, size, cmd, cmdsize); }