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(nfcutils) lsnfc: fix ULC detection bug when the ULC is read protected

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This commit is contained in:
Philippe Teuwen 2010-10-22 08:12:27 +00:00
parent 664f8253de
commit 4adef3c4b2
1 changed files with 8 additions and 5 deletions
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13
src/lsnfc.c
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@ -72,26 +72,29 @@ mifare_ultralight_identification(const nfc_iso14443a_info_t nai)
byte_t abtRx[265]; byte_t abtRx[265];
size_t szRxLen; size_t szRxLen;
abtCmd[0] = 0x30; // MIFARE Ultralight READ command abtCmd[0] = 0x1A; // MIFARE UltralightC Auth command
abtCmd[1] = 0x10; // block address (1K=0x00..0x39, 4K=0x00..0xff) abtCmd[1] = 0x00; //
nfc_modulation_t nm = { nfc_modulation_t nm = {
.nmt = NMT_ISO14443A, .nmt = NMT_ISO14443A,
.nbr = NBR_106 .nbr = NBR_106
}; };
if(nfc_initiator_select_passive_target(pnd, nm, nai.abtUid, nai.szUidLen, NULL) ) { if(nfc_initiator_select_passive_target(pnd, nm, nai.abtUid, nai.szUidLen, NULL) ) {
nfc_configure (pnd, NDO_EASY_FRAMING, false);
if (nfc_initiator_transceive_bytes(pnd, abtCmd,sizeof(abtCmd), abtRx, &szRxLen)) { if (nfc_initiator_transceive_bytes(pnd, abtCmd,sizeof(abtCmd), abtRx, &szRxLen)) {
// READ command of 0x10 success, we consider that Ultralight does have 0x10 address, so it's a Ultralight C // AUTH step1 command success, so it's a Ultralight C
nfc_configure (pnd, NDO_EASY_FRAMING, true);
nfc_initiator_deselect_target(pnd);
return strdup(" C"); return strdup(" C");
} else { } else {
// When a READ failed, the tag returns in HALT state, so we don't need to deselect tag // When a Auth failed, the tag returns in HALT state, so we don't need to deselect tag
nfc_configure (pnd, NDO_EASY_FRAMING, true);
return NULL; return NULL;
} }
} else { } else {
// Unable to reselect Ultralight tag // Unable to reselect Ultralight tag
return NULL; return NULL;
} }
nfc_initiator_deselect_target(pnd);
return NULL; return NULL;
} }