X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/4f131b53ea7e9a66f5c7269fc35b11f8038cbf3e..a31f7f899b6d62c94bc236fce4330d6bbb8996e7:/client/cmdhflist.c diff --git a/client/cmdhflist.c b/client/cmdhflist.c index 86562e4c..8e7b7f6e 100644 --- a/client/cmdhflist.c +++ b/client/cmdhflist.c @@ -13,5 +13,232 @@ #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"); + MifareAuthState = masNone; + 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"); + MifareAuthState = masNone; + 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); + +}