From: Jesse Hallio Date: Tue, 10 Feb 2015 02:31:53 +0000 (+0200) Subject: Add settable ATQA and SAK to hf mf csetuid command. X-Git-Tag: v2.0.0-rc1~24^2 X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/commitdiff_plain/refs/pull/64/head Add settable ATQA and SAK to hf mf csetuid command. --- diff --git a/client/cmdhfmf.c b/client/cmdhfmf.c index f225359d..d0852ea5 100644 --- a/client/cmdhfmf.c +++ b/client/cmdhfmf.c @@ -1433,27 +1433,60 @@ int CmdHF14AMfCSetUID(const char *Cmd) uint8_t wipeCard = 0; uint8_t uid[8] = {0x00}; uint8_t oldUid[8] = {0x00}; + uint8_t atqa[2] = {0x00}; + uint8_t sak[1] = {0x00}; + uint8_t atqaPresent = 1; int res; - - if (strlen(Cmd) < 1 || param_getchar(Cmd, 0) == 'h') { - PrintAndLog("Usage: hf mf csetuid "); - PrintAndLog("sample: hf mf csetuid 01020304 w"); - PrintAndLog("Set UID for magic Chinese card (only works with!!!)"); - PrintAndLog("If you want wipe card then add 'w' into command line. \n"); + char ctmp; + int argi=0; + + if (strlen(Cmd) < 1 || param_getchar(Cmd, argi) == 'h') { + PrintAndLog("Usage: hf mf csetuid [ATQA 4 hex symbols SAK 2 hex symbols] [w]"); + PrintAndLog("sample: hf mf csetuid 01020304"); + PrintAndLog("sample: hf mf csetuid 01020304 0004 08 w"); + PrintAndLog("Set UID, ATQA, and SAK for magic Chinese card (only works with such cards)"); + PrintAndLog("If you also want to wipe the card then add 'w' at the end of the command line."); return 0; - } + } - if (param_getchar(Cmd, 0) && param_gethex(Cmd, 0, uid, 8)) { + if (param_getchar(Cmd, argi) && param_gethex(Cmd, argi, uid, 8)) { PrintAndLog("UID must include 8 HEX symbols"); return 1; } + argi++; + + ctmp = param_getchar(Cmd, argi); + if (ctmp == 'w' || ctmp == 'W') { + wipeCard = 1; + atqaPresent = 0; + } + + if (atqaPresent) { + if (param_getchar(Cmd, argi)) { + if (param_gethex(Cmd, argi, atqa, 4)) { + PrintAndLog("ATQA must include 4 HEX symbols"); + return 1; + } + argi++; + if (!param_getchar(Cmd, argi) || param_gethex(Cmd, argi, sak, 2)) { + PrintAndLog("SAK must include 2 HEX symbols"); + return 1; + } + argi++; + } else + atqaPresent = 0; + } + + if(!wipeCard) { + ctmp = param_getchar(Cmd, argi); + if (ctmp == 'w' || ctmp == 'W') { + wipeCard = 1; + } + } - char ctmp = param_getchar(Cmd, 1); - if (ctmp == 'w' || ctmp == 'W') wipeCard = 1; - PrintAndLog("--wipe card:%s uid:%s", (wipeCard)?"YES":"NO", sprint_hex(uid, 4)); - res = mfCSetUID(uid, oldUid, wipeCard); + res = mfCSetUID(uid, (atqaPresent)?atqa:NULL, (atqaPresent)?sak:NULL, oldUid, wipeCard); if (res) { PrintAndLog("Can't set UID. error=%d", res); return 1; diff --git a/client/mifarehost.c b/client/mifarehost.c index 7f784850..35499b83 100644 --- a/client/mifarehost.c +++ b/client/mifarehost.c @@ -231,28 +231,31 @@ int mfEmlSetMem(uint8_t *data, int blockNum, int blocksCount) { // "MAGIC" CARD -int mfCSetUID(uint8_t *uid, uint8_t *oldUID, bool wantWipe) { - +int mfCSetUID(uint8_t *uid, uint8_t *atqa, uint8_t *sak, uint8_t *oldUID, bool wantWipe) { uint8_t oldblock0[16] = {0x00}; uint8_t block0[16] = {0x00}; - memcpy(block0, uid, 4); - block0[4] = block0[0]^block0[1]^block0[2]^block0[3]; // Mifare UID BCC - // mifare classic SAK(byte 5) and ATQA(byte 6 and 7) - //block0[5] = 0x08; - //block0[6] = 0x04; - //block0[7] = 0x00; - - block0[5] = 0x01; //sak - block0[6] = 0x01; - block0[7] = 0x0f; - + int old = mfCGetBlock(0, oldblock0, CSETBLOCK_SINGLE_OPER); - if ( old == 0) { - memcpy(block0+8, oldblock0+8, 8); - PrintAndLog("block 0: %s", sprint_hex(block0,16)); + if (old == 0) { + memcpy(block0, oldblock0, 16); + PrintAndLog("old block 0: %s", sprint_hex(block0,16)); } else { - PrintAndLog("Couldn't get olddata. Will write over the last bytes of Block 0."); + PrintAndLog("Couldn't get old data. Will write over the last bytes of Block 0."); + } + + // fill in the new values + // UID + memcpy(block0, uid, 4); + // Mifare UID BCC + block0[4] = block0[0]^block0[1]^block0[2]^block0[3]; + // mifare classic SAK(byte 5) and ATQA(byte 6 and 7, reversed) + if (sak!=NULL) + block0[5]=sak[0]; + if (atqa!=NULL) { + block0[6]=atqa[1]; + block0[7]=atqa[0]; } + PrintAndLog("new block 0: %s", sprint_hex(block0,16)); return mfCSetBlock(0, block0, oldUID, wantWipe, CSETBLOCK_SINGLE_OPER); } diff --git a/client/mifarehost.h b/client/mifarehost.h index 96eb75f7..a11f11d5 100644 --- a/client/mifarehost.h +++ b/client/mifarehost.h @@ -55,7 +55,7 @@ int mfCheckKeys (uint8_t blockNo, uint8_t keyType, uint8_t keycnt, uint8_t * key int mfEmlGetMem(uint8_t *data, int blockNum, int blocksCount); int mfEmlSetMem(uint8_t *data, int blockNum, int blocksCount); -int mfCSetUID(uint8_t *uid, uint8_t *oldUID, bool wantWipe); +int mfCSetUID(uint8_t *uid, uint8_t *atqa, uint8_t *sak, uint8_t *oldUID, bool wantWipe); int mfCSetBlock(uint8_t blockNo, uint8_t *data, uint8_t *uid, bool wantWipe, uint8_t params); int mfCGetBlock(uint8_t blockNo, uint8_t *data, uint8_t params);