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Add settable ATQA and SAK to hf mf csetuid command.

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This commit is contained in:
Jesse Hallio 2015-02-10 04:31:53 +02:00
parent 0d0d049967
commit 3bba7deac0
3 changed files with 65 additions and 29 deletions
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55
client/cmdhfmf.c
View file

@ -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;
char ctmp;
int argi=0;
if (strlen(Cmd) < 1 || param_getchar(Cmd, 0) == 'h') {
PrintAndLog("Usage: hf mf csetuid <UID 8 hex symbols> <w>");
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");
if (strlen(Cmd) < 1 || param_getchar(Cmd, argi) == 'h') {
PrintAndLog("Usage: hf mf csetuid <UID 8 hex symbols> [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;

37
client/mifarehost.c
View file

@ -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);
}

2
client/mifarehost.h
View file

@ -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);