154 lines
3.3 KiB
C
154 lines
3.3 KiB
C
/* librfid - layer 4 protocol handler
|
|
* (C) 2005-2006 by Harald Welte <laforge@gnumonks.org>
|
|
*/
|
|
|
|
/*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2
|
|
* as published by the Free Software Foundation
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <errno.h>
|
|
|
|
#include <librfid/rfid_layer2.h>
|
|
#include <librfid/rfid_protocol.h>
|
|
|
|
static const struct rfid_protocol *rfid_protocols[] = {
|
|
[RFID_PROTOCOL_MIFARE_CLASSIC] = &rfid_protocol_mfcl,
|
|
[RFID_PROTOCOL_MIFARE_UL] = &rfid_protocol_mful,
|
|
[RFID_PROTOCOL_TCL] = &rfid_protocol_tcl,
|
|
};
|
|
|
|
struct rfid_protocol_handle *
|
|
rfid_protocol_init(struct rfid_layer2_handle *l2h, unsigned int id)
|
|
{
|
|
struct rfid_protocol *p;
|
|
struct rfid_protocol_handle *ph = NULL;
|
|
|
|
if (id >= ARRAY_SIZE(rfid_protocols))
|
|
return NULL;
|
|
|
|
p = rfid_protocols[id];
|
|
|
|
ph = p->fn.init(l2h);
|
|
if (!ph)
|
|
return NULL;
|
|
|
|
ph->proto = p;
|
|
ph->l2h = l2h;
|
|
|
|
return ph;
|
|
}
|
|
|
|
int
|
|
rfid_protocol_open(struct rfid_protocol_handle *ph)
|
|
{
|
|
if (ph->proto->fn.open)
|
|
return ph->proto->fn.open(ph);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
rfid_protocol_transceive(struct rfid_protocol_handle *ph,
|
|
const unsigned char *tx_buf, unsigned int len,
|
|
unsigned char *rx_buf, unsigned int *rx_len,
|
|
unsigned int timeout, unsigned int flags)
|
|
{
|
|
return ph->proto->fn.transceive(ph, tx_buf, len, rx_buf, rx_len,
|
|
timeout, flags);
|
|
}
|
|
|
|
int
|
|
rfid_protocol_read(struct rfid_protocol_handle *ph,
|
|
unsigned int page,
|
|
unsigned char *rx_data,
|
|
unsigned int *rx_len)
|
|
{
|
|
if (ph->proto->fn.read)
|
|
return ph->proto->fn.read(ph, page, rx_data, rx_len);
|
|
else
|
|
return -EINVAL;
|
|
}
|
|
|
|
int
|
|
rfid_protocol_write(struct rfid_protocol_handle *ph,
|
|
unsigned int page,
|
|
unsigned char *tx_data,
|
|
unsigned int tx_len)
|
|
{
|
|
if (ph->proto->fn.write)
|
|
return ph->proto->fn.write(ph, page, tx_data, tx_len);
|
|
else
|
|
return -EINVAL;
|
|
}
|
|
|
|
int rfid_protocol_fini(struct rfid_protocol_handle *ph)
|
|
{
|
|
return ph->proto->fn.fini(ph);
|
|
}
|
|
|
|
int
|
|
rfid_protocol_close(struct rfid_protocol_handle *ph)
|
|
{
|
|
if (ph->proto->fn.close)
|
|
return ph->proto->fn.close(ph);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
rfid_protocol_getopt(struct rfid_protocol_handle *ph, int optname,
|
|
void *optval, unsigned int *optlen)
|
|
{
|
|
if (optname >> 16 == 0) {
|
|
unsigned char *optchar = optval;
|
|
|
|
switch (optname) {
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
break;
|
|
}
|
|
} else {
|
|
if (!ph->proto->fn.getopt)
|
|
return -EINVAL;
|
|
|
|
return ph->proto->fn.getopt(ph, optname, optval, optlen);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
rfid_protocol_setopt(struct rfid_protocol_handle *ph, int optname,
|
|
const void *optval, unsigned int optlen)
|
|
{
|
|
if (optname >> 16 == 0) {
|
|
switch (optname) {
|
|
default:
|
|
return -EINVAL;
|
|
break;
|
|
}
|
|
} else {
|
|
if (!ph->proto->fn.setopt)
|
|
return -EINVAL;
|
|
|
|
return ph->proto->fn.setopt(ph, optname, optval, optlen);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
char *rfid_protocol_name(struct rfid_protocol_handle *ph)
|
|
{
|
|
return ph->proto->name;
|
|
}
|