1/* Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
2 * Use of this source code is governed by a BSD-style license that can be
3 * found in the LICENSE file.
4 *
5 * Tests for host library vboot2 preamble functions
6 */
7
8#include <stdio.h>
9#include <unistd.h>
10
11#include "2sysincludes.h"
12#include "2common.h"
13#include "2rsa.h"
14
15#include "vb2_common.h"
16
17#include "host_common.h"
18#include "host_fw_preamble2.h"
19#include "host_key2.h"
20#include "host_signature2.h"
21
22#include "test_common.h"
23
24const uint8_t test_data1[] = "Some test data";
25const uint8_t test_data2[] = "Some more test data";
26const uint8_t test_data3[] = "Even more test data";
27
28static void preamble_tests(const char *keys_dir)
29{
30	struct vb2_private_key *prik4096;
31	struct vb2_public_key *pubk4096;
32	struct vb2_fw_preamble *fp;
33	const struct vb2_private_key *prikhash;
34	struct vb2_signature *hashes[3];
35	char fname[1024];
36	const char test_desc[] = "Test fw preamble";
37	const uint32_t test_version = 2061;
38	const uint32_t test_flags = 0x11223344;
39	uint32_t hash_next;
40	int i;
41
42	uint8_t workbuf[VB2_VERIFY_FIRMWARE_PREAMBLE_WORKBUF_BYTES]
43		 __attribute__ ((aligned (VB2_WORKBUF_ALIGN)));
44	struct vb2_workbuf wb;
45
46	vb2_workbuf_init(&wb, workbuf, sizeof(workbuf));
47
48	/* Read keys */
49	sprintf(fname, "%s/key_rsa4096.keyb", keys_dir);
50	TEST_SUCC(vb2_public_key_read_keyb(&pubk4096, fname),
51					   "Read public key 1");
52	vb2_public_key_set_desc(pubk4096, "Test RSA4096 public key");
53	pubk4096->hash_alg = VB2_HASH_SHA256;
54
55	sprintf(fname, "%s/key_rsa4096.pem", keys_dir);
56	TEST_SUCC(vb2_private_key_read_pem(&prik4096, fname),
57		  "Read private key 2");
58	vb2_private_key_set_desc(prik4096, "Test RSA4096 private key");
59	prik4096->sig_alg = VB2_SIG_RSA4096;
60	prik4096->hash_alg = VB2_HASH_SHA256;
61
62	TEST_SUCC(vb2_private_key_hash(&prikhash, VB2_HASH_SHA256),
63			  "Create private hash key");
64
65	/* Create some signatures */
66	TEST_SUCC(vb2_sign_data(hashes + 0, test_data1, sizeof(test_data1),
67				prikhash, "Hash 1"),
68		  "Hash 1");
69	TEST_SUCC(vb2_sign_data(hashes + 1, test_data2, sizeof(test_data2),
70				prikhash, "Hash 2"),
71		  "Hash 2");
72	TEST_SUCC(vb2_sign_data(hashes + 2, test_data3, sizeof(test_data3),
73				prikhash, "Hash 3"),
74			  "Hash 3");
75
76	/* Test good preamble */
77	TEST_SUCC(vb2_fw_preamble_create(&fp, prik4096,
78					 (const struct vb2_signature **)hashes,
79					 3, test_version, test_flags,
80					 test_desc),
81		  "Create preamble good");
82	TEST_PTR_NEQ(fp, NULL, "  fp_ptr");
83	TEST_SUCC(vb2_verify_fw_preamble(fp, fp->c.total_size, pubk4096, &wb),
84		  "Verify preamble good");
85	TEST_EQ(strcmp(vb2_common_desc(fp), test_desc), 0, "  desc");
86	TEST_EQ(fp->fw_version, test_version, "  fw_version");
87	TEST_EQ(fp->flags, test_flags, "  flags");
88	TEST_EQ(fp->hash_count, 3, "  hash_count");
89
90	hash_next = fp->hash_offset;
91	for (i = 0; i < 3; i++) {
92		TEST_EQ(0, memcmp((uint8_t *)fp + hash_next, hashes[i],
93				  hashes[i]->c.total_size), "  hash[i]");
94		hash_next += hashes[i]->c.total_size;
95	}
96
97	free(fp);
98
99	/* Test errors */
100	prik4096->hash_alg = VB2_HASH_INVALID;
101	TEST_EQ(vb2_fw_preamble_create(&fp, prik4096,
102				       (const struct vb2_signature **)hashes,
103				       3, test_version, test_flags,
104				       test_desc),
105		VB2_FW_PREAMBLE_CREATE_SIG_SIZE,
106		"Create preamble bad sig");
107	TEST_PTR_EQ(fp, NULL, "  fp_ptr");
108
109	/* Free keys */
110	vb2_public_key_free(pubk4096);
111	vb2_private_key_free(prik4096);
112}
113
114int main(int argc, char *argv[]) {
115
116	if (argc == 2) {
117		preamble_tests(argv[1]);
118	} else {
119		fprintf(stderr, "Usage: %s <keys_dir>", argv[0]);
120		return -1;
121	}
122
123	return gTestSuccess ? 0 : 255;
124}
125