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/*
* 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 <kernel/panic.h>
#include <stdlib.h>
#include <string.h>
#include <tee_api_types.h>
#include <trace.h>
#include <tee/se/aid.h>
#include <tee/se/util.h>
#include "aid_priv.h"
TEE_Result tee_se_aid_create(const char *name, struct tee_se_aid **aid)
{
size_t str_length = strlen(name);
size_t aid_length = str_length / 2;
assert(aid);
if (*aid)
panic("aid already allocated");
if (str_length < MIN_AID_LENGTH || str_length > MAX_AID_LENGTH)
return TEE_ERROR_BAD_PARAMETERS;
*aid = malloc(sizeof(struct tee_se_aid));
if (!(*aid))
return TEE_ERROR_OUT_OF_MEMORY;
hex_decode(name, str_length, (*aid)->aid);
(*aid)->length = aid_length;
(*aid)->refcnt = 1;
return TEE_SUCCESS;
}
TEE_Result tee_se_aid_create_from_buffer(uint8_t *id, size_t length,
struct tee_se_aid **aid)
{
*aid = malloc(sizeof(struct tee_se_aid));
if (!(*aid))
return TEE_ERROR_OUT_OF_MEMORY;
memcpy((*aid)->aid, id, length);
(*aid)->length = length;
(*aid)->refcnt = 1;
return TEE_SUCCESS;
}
void tee_se_aid_acquire(struct tee_se_aid *aid)
{
assert(aid);
aid->refcnt++;
}
int tee_se_aid_get_refcnt(struct tee_se_aid *aid)
{
assert(aid);
return aid->refcnt;
}
void tee_se_aid_release(struct tee_se_aid *aid)
{
assert(aid);
if (aid->refcnt <= 0)
panic();
aid->refcnt--;
if (!aid->refcnt)
free(aid);
}
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