/* ISO 15693 anticollision implementation
*
- * (C) 2005 by Harald Welte <laforge@gnumonks.org>
- *
+ * (C) 2005-2008 by Harald Welte <laforge@gnumonks.org>
+ * (C) 2007 by Bjoern Riemer <bjoern.riemer@web.de>
*/
/*
*
* 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
*/
+#define DEBUG_LIBRFID
+
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
+#include <errno.h>
#include <librfid/rfid.h>
#include <librfid/rfid_layer2.h>
#include <librfid/rfid_reader.h>
#include <librfid/rfid_layer2_iso15693.h>
-#if 0
-/* Transceive a 7-bit short frame */
-static int
-iso14443a_transceive_sf(struct rfid_layer2_handle *handle,
- unsigned char cmd,
- struct iso14443a_atqa *atqa)
-{
- struct rfid_reader *rdr = handle->rh->reader;
+struct iso15693_request_read {
+ struct iso15693_request req;
+ u_int64_t uid;
+ u_int8_t blocknum;
+} __attribute__ ((packed));
+
+struct iso15693_request_adressed {
+ struct iso15693_request head;
+ u_int64_t uid;
+} __attribute__ ((packed));
+
+#define ISO15693_BLOCK_SIZE_MAX (256/8)
+#define ISO15693_RESP_SIZE_MAX (4+ISO15693_BLOCK_SIZE_MAX)
+
+#define TIMEOUT 200
- return rdr->iso14443a.transceive_sf(handle->rh, cmd, atqa);
+static int iso15693_transceive(struct rfid_layer2_handle *handle,
+ enum rfid_frametype frametype,
+ const unsigned char *tx_buf, unsigned int tx_len,
+ unsigned char *rx_buf, unsigned int *rx_len,
+ u_int64_t timeout, unsigned int flags)
+{
+ return handle->rh->reader->transceive(handle->rh, frametype, tx_buf,
+ tx_len, rx_buf, rx_len, timeout, flags);
}
-/* Transmit an anticollission bit frame */
+/* Transmit an anticollission frame */
static int
-iso14443a_transceive_acf(struct rfid_layer2_handle *handle,
- struct iso14443a_anticol_cmd *acf,
- unsigned int *bit_of_col)
+iso15693_transceive_acf(struct rfid_layer2_handle *handle,
+ struct iso15693_anticol_cmd *acf,
+ unsigned char uuid[ISO15693_UID_LEN],
+ char *bit_of_col)
{
struct rfid_reader *rdr = handle->rh->reader;
-
- return rdr->iso14443a.transceive_acf(handle->rh, acf, bit_of_col);
+ if (!rdr->iso15693.transceive_ac)
+ return -1;
+ return rdr->iso15693.transceive_ac(handle->rh, acf, uuid, bit_of_col);
}
-/* Transmit a regular frame */
-static int
-iso14443a_transceive(struct rfid_layer2_handle *handle,
- const unsigned char *tx_buf, unsigned int tx_len,
- unsigned char *rx_buf, unsigned int *rx_len,
- u_int64_t, unsigned int flags)
-{
- return handle->rh->reader->transceive(handle->rh, tx_buf, tx_len,
- rx_buf, rx_len, timeout, flags);
-}
+#if 0
-static int
-iso14443a_code_nvb_bits(unsigned char *nvb, unsigned int bits)
+static int
+iso15693_read_block(struct rfid_layer2_handle *handle,
+ u_int8_t blocknr, u_int32_t *data)
{
- unsigned int byte_count = bits / 8;
- unsigned int bit_count = bits % 8;
+ int rc;
+ struct iso15693_request_read req;
+ u_int8_t resp[ISO15693_RESP_SIZE_MAX];
- if (byte_count < 2 || byte_count > 7)
- return -1;
+ req.req.flags = 0;
+ req.command = ISO15693_CMD_READ_BLOCK_SINGLE;
+ memcpy(&req.uid, handle->..., ISO15693_UID_LEN);
+ req.blocknum = blocknr;
- *nvb = ((byte_count & 0xf) << 4) | bit_count;
+ /* FIXME: fill CRC if required */
- return 0;
-}
+ rc = iso15693_transceive(... &req, ..., );
-/* first bit is '1', second bit '2' */
-static void
-set_bit_in_field(unsigned char *bitfield, unsigned int bit)
-{
- unsigned int byte_count = bit / 8;
- unsigned int bit_count = bit % 8;
-
- DEBUGP("bitfield=%p, byte_count=%u, bit_count=%u\n",
- bitfield, byte_count, bit_count);
- DEBUGP("%p = 0x%02x\n", (bitfield+byte_count), *(bitfield+byte_count));
- *(bitfield+byte_count) |= 1 << (bit_count-1);
- DEBUGP("%p = 0x%02x\n", (bitfield+byte_count), *(bitfield+byte_count));
+ if (rc < 0)
+ return rc;
+
+ memcpy(data, resp+1, rc-1); /* FIXME rc-3 in case of CRC */
+
+ return rc-1;
}
static int
-iso14443a_anticol(struct rfid_layer2_handle *handle)
+iso15693_write_block()
{
- int ret;
- unsigned int uid_size;
- struct iso14443a_atqa atqa;
- struct iso14443a_anticol_cmd acf;
- unsigned int bit_of_col;
- unsigned char sak[3];
- unsigned char uid[10]; // triple size equals 10 bytes;
- unsigned int rx_len = sizeof(sak);
- char *aqptr = (char *) &atqa;
- static int first = 0;
-
- memset(uid, 0, sizeof(uid));
- memset(sak, 0, sizeof(sak));
- memset(&atqa, 0, sizeof(atqa));
- memset(&acf, 0, sizeof(acf));
-
- if (first == 0) {
- DEBUGP("Sending REQA\n");
- ret = iso14443a_transceive_sf(handle, ISO14443A_SF_CMD_REQA, &atqa);
- first = 1;
- } else {
- DEBUGP("Sending WUPA\n");
- ret = iso14443a_transceive_sf(handle, ISO14443A_SF_CMD_WUPA, &atqa);
- }
+ struct iso16593_request_read *rreq;
+ u_int32_t buf[sizeof(req)+ISO15693_BLOCK_SIZE_MAX];
- if (ret < 0) {
- handle->priv.iso14443a.state = ISO14443A_STATE_REQA_SENT;
- DEBUGP("error during transceive_sf: %d\n", ret);
- return ret;
- }
- handle->priv.iso14443a.state = ISO14443A_STATE_ATQA_RCVD;
+ rreq = (struct iso15693_request_read *) req;
- DEBUGP("ATQA: 0x%02x 0x%02x\n", *aqptr, *(aqptr+1));
+ rreq->req.flags = ;
+ rreq->req.command = ISO15693_CMD_WRITE_BLOCK_SINGLE;
+ memcpy(rreq->uid, handle->, ISO15693_UID_LEN);
+ rreq->blocknum = blocknr;
+ memcpy(rreq->);
- if (!atqa.bf_anticol) {
- handle->priv.iso14443a.state =ISO14443A_STATE_NO_BITFRAME_ANTICOL;
- DEBUGP("no bitframe anticollission bits set, aborting\n");
- return -1;
- }
+}
- if (atqa.uid_size == 2 || atqa.uid_size == 3)
- uid_size = 3;
- else if (atqa.uid_size == 1)
- uid_size = 2;
- else
- uid_size = 1;
-
- acf.sel_code = ISO14443A_AC_SEL_CODE_CL1;
-
- handle->priv.iso14443a.state = ISO14443A_STATE_ANTICOL_RUNNING;
- handle->priv.iso14443a.level = ISO14443A_LEVEL_CL1;
-
-cascade:
- iso14443a_code_nvb_bits(&acf.nvb, 16);
-
- ret = iso14443a_transceive_acf(handle, &acf, &bit_of_col);
- if (ret < 0)
- return ret;
- DEBUGP("bit_of_col = %u\n", bit_of_col);
-
- while (bit_of_col != ISO14443A_BITOFCOL_NONE) {
- set_bit_in_field(&acf.uid_bits[0], bit_of_col-16);
- iso14443a_code_nvb_bits(&acf.nvb, bit_of_col);
- ret = iso14443a_transceive_acf(handle, &acf, &bit_of_col);
- DEBUGP("bit_of_col = %u\n", bit_of_col);
- if (ret < 0)
- return ret;
- }
+static int
+iso15693_lock_block()
+{
+}
- iso14443a_code_nvb_bits(&acf.nvb, 7*8);
- ret = iso14443a_transceive(handle, (unsigned char *)&acf, 7,
- (unsigned char *) &sak, &rx_len,
- TIMEOUT, 0);
- if (ret < 0)
- return ret;
-
- if (sak[0] & 0x04) {
- /* Cascade bit set, UID not complete */
- switch (acf.sel_code) {
- case ISO14443A_AC_SEL_CODE_CL1:
- /* cascading from CL1 to CL2 */
- if (acf.uid_bits[0] != 0x88) {
- DEBUGP("Cascade bit set, but UID0 != 0x88\n");
- return -1;
- }
- memcpy(&uid[0], &acf.uid_bits[1], 3);
- acf.sel_code = ISO14443A_AC_SEL_CODE_CL2;
- handle->priv.iso14443a.level = ISO14443A_LEVEL_CL2;
+#endif
+
+static int
+iso15693_anticol(struct rfid_layer2_handle *handle)
+{
+ int i, ret;
+ int rx_len = 0;
+ int num_valid = 0;
+ struct iso15693_anticol_cmd acf;
+ char uuid[ISO15693_UID_LEN];
+ char boc;
+
+ char uuid_list[16][ISO15693_UID_LEN];
+ int uuid_list_valid[16];
+
+#define MY_NONE 0
+#define MY_COLL 1
+#define MY_UUID 2
+
+ memset(uuid_list_valid, MY_NONE, 16);
+ memset(uuid_list, 0, ISO15693_UID_LEN * 16);
+
+ memset(&acf, 0, sizeof(struct iso15693_anticol_cmd));
+ acf.afi = 0;
+ acf.flags = RFID_15693_F5_NSLOTS_1 | /* comment out for 16 slots */
+ RFID_15693_F_INV_TABLE_5 |
+ RFID_15693_F_RATE_HIGH;
+ //RFID_15693_F_SUBC_TWO
+ acf.mask_len = 0;
+ //acf.mask_bits[0] = 3;
+ acf.current_slot = 0;
+
+ if (acf.flags & RFID_15693_F5_NSLOTS_1)
+ i = 1;
+ else
+ i = 16;
+ for (; i >=1; i--) {
+ //acf.current_slot=0;
+ ret = iso15693_transceive_acf(handle, &acf, &uuid[0], &boc);
+ switch (ret) {
+ case -ETIMEDOUT:
+ DEBUGP("no answer from vicc in slot %d\n",
+ acf.current_slot);
+ uuid_list_valid[acf.current_slot] = MY_NONE;
break;
- case ISO14443A_AC_SEL_CODE_CL2:
- /* cascading from CL2 to CL3 */
- memcpy(&uid[3], &acf.uid_bits[1], 3);
- acf.sel_code = ISO14443A_AC_SEL_CODE_CL3;
- handle->priv.iso14443a.level = ISO14443A_LEVEL_CL3;
+ case -ECOLLISION:
+ DEBUGP("Collision during anticol. slot %d bit %d\n",
+ acf.current_slot,boc);
+ uuid_list_valid[acf.current_slot] = -boc;
+ memcpy(uuid_list[acf.current_slot], uuid, ISO15693_UID_LEN);
break;
default:
- DEBUGP("cannot cascade any further than CL3\n");
- handle->priv.iso14443a.state = ISO14443A_STATE_ERROR;
- return -1;
- break;
+ if (ret < 0) {
+ DEBUGP("ERROR ret: %d, slot %d\n", ret,
+ acf.current_slot);
+ uuid_list_valid[acf.current_slot] = MY_NONE;
+ } else {
+ DEBUGP("Slot %d ret: %d UUID: %s\n",
+ acf.current_slot, ret,
+ rfid_hexdump(uuid, ISO15693_UID_LEN));
+ uuid_list_valid[acf.current_slot] = MY_UUID;
+ memcpy(&uuid_list[acf.current_slot][0], uuid,
+ ISO15693_UID_LEN);
+ }
}
- goto cascade;
-
- } else {
- switch (acf.sel_code) {
- case ISO14443A_AC_SEL_CODE_CL1:
- /* single size UID (4 bytes) */
- memcpy(&uid[0], &acf.uid_bits[0], 4);
- break;
- case ISO14443A_AC_SEL_CODE_CL2:
- /* double size UID (7 bytes) */
- memcpy(&uid[3], &acf.uid_bits[0], 4);
- break;
- case ISO14443A_AC_SEL_CODE_CL3:
- /* triple size UID (10 bytes) */
- memcpy(&uid[6], &acf.uid_bits[0], 4);
- break;
+ usleep(1000*200);
+ }
+ if (acf.flags & RFID_15693_F5_NSLOTS_1)
+ i = 1;
+ else
+ i = 16;
+
+ while (i) {
+ if (uuid_list_valid[i] == MY_NONE) {
+ DEBUGP("slot[%d]: timeout\n",i);
+ } else if (uuid_list_valid[i] == MY_UUID) {
+ DEBUGP("slot[%d]: VALID uuid: %s\n", i,
+ rfid_hexdump(uuid_list[i], ISO15693_UID_LEN));
+ num_valid++;
+ } else if (uuid_list_valid[i] < 0) {
+ DEBUGP("slot[%d]: collision(%d %d,%d) uuid: %s\n",
+ i,uuid_list_valid[i]*-1,
+ (uuid_list_valid[i]*-1)/8,
+ (uuid_list_valid[i]*-1)%8,
+ rfid_hexdump(uuid_list[i], ISO15693_UID_LEN));
}
+ i--;
}
+ if (num_valid == 0)
+ return -1;
- handle->priv.iso14443a.level = ISO14443A_LEVEL_NONE;
- handle->priv.iso14443a.state = ISO14443A_STATE_SELECTED;
-
- {
- int uid_len;
- if (uid_size == 1)
- uid_len = 4;
- else if (uid_size == 2)
- uid_len = 7;
- else
- uid_len = 10;
+ return num_valid;
+}
- DEBUGP("UID %s\n", rfid_hexdump(uid, uid_len));
- }
+static int
+iso15693_select(struct rfid_layer2_handle *handle)
+{
+ struct iso15693_request_adressed tx_req;
+ int ret;
+ unsigned int rx_len, tx_len;
+
+ struct {
+ struct iso15693_response head;
+ u_int8_t error;
+ unsigned char crc[2];
+ } rx_buf;
+ rx_len = sizeof(rx_buf);
+
+ tx_req.head.command = ISO15693_CMD_SELECT;
+ tx_req.head.flags = RFID_15693_F4_ADDRESS | RFID_15693_F_SUBC_TWO ;
+ tx_req.uid = 0xE0070000020C1F18;
+ //req.uid = 0x181F0C02000007E0;
+ //req.uid = 0xe004010001950837;
+ //req.uid = 0x37089501000104e0;
+ tx_len = sizeof(tx_req);
+ DEBUGP("tx_len=%u", tx_len); DEBUGPC(" rx_len=%u\n",rx_len);
+ ret = iso15693_transceive(handle, RFID_15693_FRAME, (u_int8_t*)&tx_req,
+ tx_len, (u_int8_t*)&rx_buf, &rx_len, 50,0);
+ DEBUGP("ret: %d, error_flag: %d error: %d\n", ret,
+ rx_buf.head.flags&RFID_15693_RF_ERROR, 0);
+ return -1;
+}
- if (sak[0] & 0x20) {
- DEBUGP("we have a T=CL compliant PICC\n");
- handle->priv.iso14443a.tcl_capable = 1;
- } else {
- DEBUGP("we have a T!=CL PICC\n");
- handle->priv.iso14443a.tcl_capable = 0;
+static int
+iso15693_getopt(struct rfid_layer2_handle *handle,
+ int optname, void *optval, unsigned int *optlen)
+{
+ switch (optname) {
+ case RFID_OPT_15693_MOD_DEPTH:
+ case RFID_OPT_15693_VCD_CODING:
+ case RFID_OPT_15693_VICC_SUBC:
+ case RFID_OPT_15693_VICC_SPEED:
+ default:
+ return -EINVAL;
+ break;
}
-
return 0;
}
static int
-iso14443a_hlta(struct rfid_layer2_handle *handle)
+iso15693_setopt(struct rfid_layer2_handle *handle, int optname,
+ const void *optval, unsigned int optlen)
{
- int ret;
- unsigned char tx_buf[2] = { 0x50, 0x00 };
- unsigned char rx_buf[10];
- unsigned int rx_len = sizeof(rx_buf);
-
+ switch (optname) {
+ case RFID_OPT_15693_MOD_DEPTH:
+ case RFID_OPT_15693_VCD_CODING:
+ case RFID_OPT_15693_VICC_SUBC:
+ case RFID_OPT_15693_VICC_SPEED:
+ default:
+ return -EINVAL;
+ break;
+ }
return 0;
+}
- ret = iso14443a_transceive(handle, tx_buf, sizeof(tx_buf),
- rx_buf, &rx_len, 1000 /* 1ms */, 0);
- if (ret < 0) {
- /* "error" case: we don't get somethng back from the card */
- return 0;
- }
+static int transceive_inventory(struct rfid_layer2_handle *l2h)
+{
return -1;
}
-#endif
static struct rfid_layer2_handle *
iso15693_init(struct rfid_reader_handle *rh)
{
int ret;
- struct rfid_layer2_handle *h = malloc(sizeof(*h));
+ struct rfid_layer2_handle *h = malloc_layer2_handle(sizeof(*h));
if (!h)
return NULL;
h->l2 = &rfid_layer2_iso15693;
h->rh = rh;
h->priv.iso15693.state = ISO15693_STATE_NONE;
-
ret = h->rh->reader->iso15693.init(h->rh);
if (ret < 0) {
- free(h);
+ free_layer2_handle(h);
return NULL;
}
static int
iso15693_fini(struct rfid_layer2_handle *handle)
{
- free(handle);
+ free_layer2_handle(handle);
return 0;
}
-struct rfid_layer2 rfid_layer2_iso15693 = {
+const struct rfid_layer2 rfid_layer2_iso15693 = {
.id = RFID_LAYER2_ISO15693,
.name = "ISO 15693",
.fn = {
.init = &iso15693_init,
- //.open = &iso15693_anticol,
+ .open = &iso15693_anticol,
+ //.open = &iso15693_select,
//.transceive = &iso15693_transceive,
//.close = &iso14443a_hlta,
.fini = &iso15693_fini,
+ .setopt = &iso15693_setopt,
+ .getopt = &iso15693_getopt,
},
};
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