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nfc-anticol: Adds support for CL3 (Fixes issue 126) Thanks.

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This commit is contained in:
Philippe Teuwen 2010-10-25 13:00:39 +00:00
parent 5c8749c63e
commit 56e37ec309
1 changed files with 50 additions and 15 deletions
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65
examples/nfc-anticol.c
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@ -48,7 +48,7 @@ static size_t szRx;
static byte_t abtUid[10]; static byte_t abtUid[10];
static byte_t abtAtqa[2]; static byte_t abtAtqa[2];
static byte_t abtSak; static byte_t abtSak;
static size_t szUidLen = 4; static size_t szCL = 1;//Always start with Cascade Level 1 (CL1)
static nfc_device_t *pnd; static nfc_device_t *pnd;
bool quiet_output = false; bool quiet_output = false;
@ -194,33 +194,64 @@ main (int argc, char *argv[])
// Anti-collision // Anti-collision
transmit_bytes (abtSelectAll, 2); transmit_bytes (abtSelectAll, 2);
memcpy (abtSelectTag + 2, abtRx, 5); // Test if we are dealing with a 4 bytes uid(CL1)
append_iso14443a_crc (abtSelectTag, 7);
// Test if we are dealing with a 4 bytes uid
if (abtRx[0] != 0x88) { if (abtRx[0] != 0x88) {
// Save the UID // Save the UID
memcpy (abtUid, abtRx, 4); memcpy (abtUid, abtRx, 4);
szUidLen = 4;
} else { } else {
// Save the first 3 bytes of UID // Save the first 3 bytes of UID
memcpy (abtUid, abtRx+1, 3); memcpy (abtUid, abtRx+1, 3);
transmit_bytes (abtSelectTag, 9); szCL = 2;//or more
}
//Prepare and send CL1 Select-Command
memcpy (abtSelectTag + 2, abtRx, 5);
append_iso14443a_crc (abtSelectTag, 7);
transmit_bytes (abtSelectTag, 9);
abtSak = abtRx[0];
if(szCL == 2) {
// We have to do the anti-collision for cascade level 2 // We have to do the anti-collision for cascade level 2
// Prepare CL2 commands
abtSelectAll[0] = 0x95; abtSelectAll[0] = 0x95;
abtSelectTag[0] = 0x95; abtSelectTag[0] = 0x95;
// Anti-collision // Anti-collision
transmit_bytes (abtSelectAll, 2); transmit_bytes (abtSelectAll, 2);
// Save the second part of UID if(abtRx[0] != 0x88) {
memcpy (abtUid + 3, abtRx, 4); // Save the second part of UID
memcpy (abtUid + 3, abtRx, 4);
} else {
memcpy (abtUid + 3, abtRx + 1, 3);
szCL = 3;
}
// Selection
memcpy (abtSelectTag + 2, abtRx, 5); memcpy (abtSelectTag + 2, abtRx, 5);
append_iso14443a_crc (abtSelectTag, 7); append_iso14443a_crc (abtSelectTag, 7);
szUidLen = 7; transmit_bytes (abtSelectTag, 9);
abtSak = abtRx[0];
if ( szCL == 3) {
// Do last CL
// Save the last part of UID
memcpy (abtUid + 6, abtRx, 4);
// Prepare and send CL3 AC-Command
abtSelectAll[0] = 0x97;
transmit_bytes (abtSelectAll, 2);
// Prepare and send final Select-Command
abtSelectTag[0] = 0x97;
memcpy (abtSelectTag + 2, abtRx, 5);
append_iso14443a_crc (abtSelectTag, 7);
transmit_bytes (abtSelectTag, 9);
abtSak = abtRx[0];
}
} }
transmit_bytes (abtSelectTag, 9);
abtSak = abtRx[0];
// Request ATS, this only applies to tags that support ISO 14443A-4 // Request ATS, this only applies to tags that support ISO 14443A-4
if (abtRx[0] & SAK_FLAG_ATS_SUPPORTED) if (abtRx[0] & SAK_FLAG_ATS_SUPPORTED)
@ -229,12 +260,16 @@ main (int argc, char *argv[])
// Done, halt the tag now // Done, halt the tag now
transmit_bytes (abtHalt, 4); transmit_bytes (abtHalt, 4);
printf ("\nFound tag with UID: "); printf ("\nFound tag with\n UID: ");
printf ("%02x%02x%02x%02x", abtUid[0], abtUid[1], abtUid[2], abtUid[3]); printf ("%02x%02x%02x%02x", abtUid[0], abtUid[1], abtUid[2], abtUid[3]);
if (szUidLen == 7) { if (szCL > 1) {
printf ("%02x%02x%02x", abtUid[4], abtUid[5], abtUid[6]); printf ("%02x%02x%02x", abtUid[4], abtUid[5], abtUid[6]);
if (szCL > 2) {
printf("%02x%02x%02x", abtUid[7], abtUid[8], abtUid[9]);
}
} }
printf(" ATQA: %02x%02x SAK: %02x\n", abtAtqa[1], abtAtqa[0], abtSak); printf("\n");
printf("ATQA: %02x%02x\n SAK: %02x\n", abtAtqa[1], abtAtqa[0], abtSak);
nfc_disconnect (pnd); nfc_disconnect (pnd);
return 0; return 0;