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Fix handling of NTAG OTP and LOCK bytes

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This commit is contained in:
Adam Laurie 2018-09-17 14:37:09 +01:00
parent 62f27c1c58
commit 4c914e67e5
1 changed files with 28 additions and 7 deletions
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25
utils/nfc-mfultralight.c
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@ -68,6 +68,11 @@
#define EV1_NTAG215 4
#define EV1_NTAG216 5
#define NTAG_NONE 0
#define NTAG_213 1
#define NTAG_215 2
#define NTAG_216 3
static nfc_device *pnd;
static nfc_target nt;
static mifare_param mp;
@ -77,6 +82,7 @@ static uint32_t uiReadPages = 0;
static uint8_t iPWD[4] = { 0x0 };
static uint8_t iPACK[2] = { 0x0 };
static uint8_t iEV1Type = EV1_NONE;
static uint8_t iNTAGType = NTAG_NONE;
// special unlock command
uint8_t abtUnlock1[1] = { 0x40 };
@ -341,7 +347,10 @@ write_card(bool write_otp, bool write_lock, bool write_uid)
char buffer[BUFSIZ];
if (!write_otp) {
if (iNTAGType == NTAG_NONE)
printf("Write OTP bytes ? [yN] ");
else
printf("Write OTP Static Lock bytes ? [yN] ");
if (!fgets(buffer, BUFSIZ, stdin)) {
ERR("Unable to read standard input.");
}
@ -349,7 +358,10 @@ write_card(bool write_otp, bool write_lock, bool write_uid)
}
if (!write_lock) {
if (iNTAGType == NTAG_NONE)
printf("Write Lock bytes ? [yN] ");
else
printf("Write Dynamic Lock bytes ? [yN] ");
if (!fgets(buffer, BUFSIZ, stdin)) {
ERR("Unable to read standard input.");
}
@ -376,13 +388,19 @@ write_card(bool write_otp, bool write_lock, bool write_uid)
}
}
// NTAG Dynamic Lock Bytes are in different locations for each type
for (uint32_t page = uiSkippedPages; page < uiBlocks; page++) {
if ((page == 0x2) && (!write_lock)) {
if (((iNTAGType == NTAG_NONE && page == 0x2) || \
(iNTAGType == NTAG_213 && page == 0x28) || \
(iNTAGType == NTAG_215 && page == 0x82) || \
(iNTAGType == NTAG_216 && page == 0xe2)) && (!write_lock)) {
printf("s");
uiSkippedPages++;
continue;
}
if ((page == 0x3) && (!write_otp)) {
// NTAG doesn't have OTP blocks but Static Lock Bytes are OTP
if (((iNTAGType == NTAG_NONE && page == 0x3) || \
(iNTAGType && page == 0x2)) && (!write_otp)) {
printf("s");
uiSkippedPages++;
continue;
@ -631,16 +649,19 @@ main(int argc, const char *argv[])
printf("NTAG213 (144 user bytes)\n");
uiBlocks = 45;
iEV1Type = EV1_NTAG213;
iNTAGType = NTAG_213;
iDumpSize = sizeof(mifarentag_213_tag);
} else if (abtRx[6] == 0x11) {
printf("NTAG215 (504 user bytes)\n");
uiBlocks = 135;
iEV1Type = EV1_NTAG215;
iNTAGType = NTAG_215;
iDumpSize = sizeof(mifarentag_215_tag);
} else if (abtRx[6] == 0x13) {
printf("NTAG216 (888 user bytes)\n");
uiBlocks = 231;
iEV1Type = EV1_NTAG216;
iNTAGType = NTAG_216;
iDumpSize = sizeof(mifarentag_216_tag);
} else {
printf("unknown! (0x%02x)\n", abtRx[6]);