X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=src%2Frfid_proto_mifare_ul.c;h=d90ac63a84f466bf6e7f91eea44694261f2f8a04;hb=893a580c6f1c7f1cc50d9bd1acc51c9fd6307a17;hp=0ea55d2671881a562ec0211077a8dc8e51f04d6e;hpb=e404cccecd20a2418c2429cd182c18218e54bd28;p=librfid

diff --git a/src/rfid_proto_mifare_ul.c b/src/rfid_proto_mifare_ul.c
index 0ea55d2..d90ac63 100644
--- a/src/rfid_proto_mifare_ul.c
+++ b/src/rfid_proto_mifare_ul.c
@@ -17,7 +17,7 @@
  *
  *  You should have received a copy of the GNU General Public License
  *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
  */
 #include <stdio.h>
 #include <stdlib.h>
@@ -99,19 +99,45 @@ mful_write(struct rfid_protocol_handle *ph, unsigned int page,
 	return ret;
 }
 
-static int
-mful_transceive(struct rfid_protocol_handle *ph,
-		const unsigned char *tx_data, unsigned int tx_len,
-		unsigned char *rx_data, unsigned int *rx_len,
-		unsigned int timeout, unsigned int flags)
+static int 
+mful_getopt(struct rfid_protocol_handle *ph, int optname, void *optval,
+	    unsigned int *optlen)
 {
-	return -EINVAL;
+	int ret = -EINVAL;
+	unsigned int *size = optval;
+
+	switch (optname) {
+	case RFID_OPT_PROTO_SIZE:
+		ret = 0;
+		/* we have to return the size in bytes, not bits */
+		*size = 512/8;
+		break;
+	}
+
+	return ret;
 }
 
+
 static struct rfid_protocol_handle *
 mful_init(struct rfid_layer2_handle *l2h)
 {
 	struct rfid_protocol_handle *ph;
+	u_int8_t atqa[2];
+	unsigned int atqa_len = sizeof(atqa);
+
+	if (l2h->l2->id != RFID_LAYER2_ISO14443A)
+		return NULL;
+	
+	/* According to "Type Identification Procedure Rev. 1.3" */
+	rfid_layer2_getopt(l2h, RFID_OPT_14443A_ATQA,
+			   atqa, &atqa_len);
+	if (atqa[0] != 0x44 || atqa[1] != 0x00)
+		return NULL;
+
+	/* according to "Functional Specification Rev. 3.0 */
+	if (l2h->uid_len != 7)
+		return NULL;
+
 	ph = malloc_protocol_handle(sizeof(struct rfid_protocol_handle));
 	return ph;
 }
@@ -130,6 +156,7 @@ const struct rfid_protocol rfid_protocol_mful = {
 		.read		= &mful_read,
 		.write 		= &mful_write,
 		.fini		= &mful_fini,
+		.getopt		= &mful_getopt,
 	},
 };