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// SPDX-License-Identifier: BSD-2-Clause
/*
* Copyright (c) 2014, Linaro Limited
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <assert.h>
#include <tee_api_types.h>
#include <trace.h>
#include <tee/se/session.h>
#include <tee/se/channel.h>
#include <tee/se/iso7816.h>
#include <tee/se/aid.h>
#include <tee/se/apdu.h>
#include <stdlib.h>
#include <string.h>
#include "aid_priv.h"
#include "channel_priv.h"
struct tee_se_channel *tee_se_channel_alloc(struct tee_se_session *s,
int channel_id)
{
struct tee_se_channel *c;
c = malloc(sizeof(struct tee_se_channel));
if (c) {
c->session = s;
c->channel_id = channel_id;
c->aid = NULL;
c->select_resp = NULL;
}
return c;
}
void tee_se_channel_free(struct tee_se_channel *c)
{
assert(c);
if (c->aid)
tee_se_aid_release(c->aid);
if (c->select_resp)
apdu_release(to_apdu_base(c->select_resp));
}
struct tee_se_session *tee_se_channel_get_session(struct tee_se_channel *c)
{
assert(c);
return c->session;
}
int tee_se_channel_get_id(struct tee_se_channel *c)
{
assert(c);
return c->channel_id;
}
void tee_se_channel_set_select_response(struct tee_se_channel *c,
struct resp_apdu *resp)
{
assert(c);
if (c->select_resp)
apdu_release(to_apdu_base(c->select_resp));
apdu_acquire(to_apdu_base(resp));
c->select_resp = resp;
}
TEE_Result tee_se_channel_get_select_response(struct tee_se_channel *c,
struct resp_apdu **resp)
{
assert(c && resp);
if (c->select_resp) {
*resp = c->select_resp;
return TEE_SUCCESS;
} else {
return TEE_ERROR_NO_DATA;
}
}
void tee_se_channel_set_aid(struct tee_se_channel *c,
struct tee_se_aid *aid)
{
assert(c);
if (c->aid)
tee_se_aid_release(c->aid);
tee_se_aid_acquire(aid);
c->aid = aid;
}
TEE_Result tee_se_channel_select(struct tee_se_channel *c,
struct tee_se_aid *aid)
{
assert(c);
return iso7816_select(c, aid);
}
TEE_Result tee_se_channel_select_next(struct tee_se_channel *c)
{
assert(c);
return iso7816_select_next(c);
}
TEE_Result tee_se_channel_transmit(struct tee_se_channel *c,
struct cmd_apdu *cmd_apdu, struct resp_apdu *resp_apdu)
{
struct tee_se_session *s;
uint8_t *cmd_buf;
int cla_channel;
assert(c && cmd_apdu && resp_apdu);
s = c->session;
cla_channel = iso7816_get_cla_channel(c->channel_id);
cmd_buf = apdu_get_data(to_apdu_base(cmd_apdu));
cmd_buf[ISO7816_CLA_OFFSET] = ISO7816_CLA | cla_channel;
return tee_se_session_transmit(s, cmd_apdu, resp_apdu);
}
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