source: trunk/src/ifd/proto-trans.c @ 663

/*
 * Transparent protocol - simply pass everything to the reader driver
 *
 * Copyright (C) 2003, Olaf Kirch <okir@suse.de>
 */

#include "internal.h"
#include <unistd.h>
#include <stdlib.h>
#include <string.h>

/*
 * Attach t0 protocol
 */
static int trans_init(ifd_protocol_t * prot)
{
        ifd_reader_t *reader = prot->reader;
        const ifd_driver_t *drv;

        if (!reader || !(drv = reader->driver)
            || !drv->ops || !drv->ops->transparent)
                return -1;
        return 0;
}

/*
 * Detach t0 protocol
 */
static void trans_release(ifd_protocol_t * prot)
{
        /* NOP */
}

/*
 * Get/set parmaters for T1 protocol
 */
static int trans_set_param(ifd_protocol_t * prot, int type, long value)
{
        ct_error("set_pameter not supported");
        return -1;
}

static int trans_get_param(ifd_protocol_t * prot, int type, long *result)
{
        ct_error("get_pameter not supported");
        return -1;
}

/*
 * Transceive an APDU
 */
static int trans_transceive(ifd_protocol_t * prot, int dad, const void *sbuf,
                            size_t slen, void *rbuf, size_t rlen)
{
        ifd_reader_t *reader = prot->reader;
        const ifd_driver_t *drv = reader->driver;

        return drv->ops->transparent(reader, dad, sbuf, slen, rbuf, rlen);
}

/*
 * Protocol struct
 */
struct ifd_protocol_ops ifd_protocol_trans = {
        IFD_PROTOCOL_TRANSPARENT,       /* id */
        "transparent",          /* name */
        sizeof(ifd_protocol_t), /* size */
        trans_init,             /* init */
        trans_release,          /* release */
        trans_set_param,        /* set_param */
        trans_get_param,        /* get_param */
        NULL,                   /* resynchronize */
        trans_transceive,       /* transceive */
        NULL,                   /* sync_read */
        NULL,                   /* sync_write */
};