1 /*
2  * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions are met:
6  *
7  * Redistributions of source code must retain the above copyright notice, this
8  * list of conditions and the following disclaimer.
9  *
10  * Redistributions in binary form must reproduce the above copyright notice,
11  * this list of conditions and the following disclaimer in the documentation
12  * and/or other materials provided with the distribution.
13  *
14  * Neither the name of ARM nor the names of its contributors may be used
15  * to endorse or promote products derived from this software without specific
16  * prior written permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
22  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28  * POSSIBILITY OF SUCH DAMAGE.
29  */
30 
31 #include <assert.h>
32 #include <auth.h>
33 #include <debug.h>
34 
35 /*
36  * Initialize the authentication module
37  */
auth_init(void)38 void auth_init(void)
39 {
40 	assert(auth_mod.name);
41 	assert(auth_mod.init);
42 	assert(auth_mod.verify);
43 
44 	INFO("Using authentication module '%s'\n", auth_mod.name);
45 	if (auth_mod.init() != 0)
46 		assert(0);
47 }
48 
49 /*
50  * Authenticate a certificate/image
51  *
52  * Return: 0 = success, Otherwise = error
53  */
auth_verify_obj(unsigned int obj_id,uintptr_t obj_buf,size_t len)54 int auth_verify_obj(unsigned int obj_id, uintptr_t obj_buf, size_t len)
55 {
56 	assert(obj_id < AUTH_NUM_OBJ);
57 	assert(obj_buf != 0);
58 	assert(auth_mod.verify);
59 
60 	return auth_mod.verify(obj_id, obj_buf, len);
61 }
62