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Strip CT (Cascade Tag) from UIDs in nfc_initiator_select_tag().

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Romain Tartiere 2010-03-30 16:05:01 +00:00
parent 1214f31d2c
commit 667ba72dbd
1 changed files with 11 additions and 0 deletions
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11
src/lib/nfc.c
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@ -488,6 +488,17 @@ bool nfc_initiator_select_tag(const nfc_device_t* pnd, const nfc_modulation_t nm
} else { } else {
pnti->nai.szAtsLen = 0; pnti->nai.szAtsLen = 0;
} }
// Strip CT (Cascade Tag) to retrieve and store the _real_ UID
// (e.g. 0x8801020304050607 is in fact 0x01020304050607)
if ((pnti->nai.szUidLen == 8) && (pnti->nai.abtUid[0] == 0x88)) {
pnti->nai.szUidLen = 7;
memmove (pnti->nai.abtUid, pnti->nai.abtUid + 1, 7)
} else if ((pnti->nai.szUidLen == 12) && (pnti->nai.abtUid[0] == 0x88) && (pnti->nai.abtUid[4] == 0x88)) {
pnti->nai.szUidLen = 10;
memmove (pnti->nai.abtUid, pnti->nai.abtUid + 1, 3);
memmove (pnti->nai.abtUid + 3, pnti->nai.abtUid + 5, 7);
}
break; break;
case NM_FELICA_212: case NM_FELICA_212: