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 firmware 2common.c 6 */ 7 8 #include "2sysincludes.h" 9 #include "vb2_common.h" 10 #include "vboot_struct.h" /* For old struct sizes */ 11 #include "test_common.h" 12 13 /* 14 * Test struct packing for vboot_struct.h structs which are passed between 15 * firmware and OS, or passed between different phases of firmware. 16 */ 17 static void test_struct_packing(void) 18 { 19 /* Test vboot2 versions of vboot1 structs */ 20 TEST_EQ(EXPECTED_VB2_PACKED_KEY_SIZE, 21 sizeof(struct vb2_packed_key), 22 "sizeof(vb2_packed_key)"); 23 TEST_EQ(EXPECTED_VB2_SIGNATURE_SIZE, 24 sizeof(struct vb2_signature), 25 "sizeof(vb2_signature)"); 26 TEST_EQ(EXPECTED_VB2_KEYBLOCK_SIZE, 27 sizeof(struct vb2_keyblock), 28 "sizeof(vb2_keyblock)"); 29 TEST_EQ(EXPECTED_VB2_FW_PREAMBLE_SIZE, 30 sizeof(struct vb2_fw_preamble), 31 "sizeof(vb2_fw_preamble)"); 32 TEST_EQ(EXPECTED_VB2_GBB_HEADER_SIZE, 33 sizeof(struct vb2_gbb_header), 34 "sizeof(vb2_gbb_header)"); 35 36 /* And make sure they're the same as their vboot1 equivalents */ 37 TEST_EQ(EXPECTED_VB2_PACKED_KEY_SIZE, 38 EXPECTED_VBPUBLICKEY_SIZE, 39 "vboot1->2 packed key sizes same"); 40 TEST_EQ(EXPECTED_VB2_SIGNATURE_SIZE, 41 EXPECTED_VBSIGNATURE_SIZE, 42 "vboot1->2 signature sizes same"); 43 TEST_EQ(EXPECTED_VB2_KEYBLOCK_SIZE, 44 EXPECTED_VBKEYBLOCKHEADER_SIZE, 45 "vboot1->2 keyblock sizes same"); 46 TEST_EQ(EXPECTED_VB2_FW_PREAMBLE_SIZE, 47 EXPECTED_VBFIRMWAREPREAMBLEHEADER2_1_SIZE, 48 "vboot1->2 firmware preamble sizes same"); 49 } 50 51 /** 52 * Helper functions not dependent on specific key sizes 53 */ 54 static void test_helper_functions(void) 55 { 56 { 57 uint8_t *p = (uint8_t *)test_helper_functions; 58 TEST_EQ((int)vb2_offset_of(p, p), 0, "vb2_offset_of() equal"); 59 TEST_EQ((int)vb2_offset_of(p, p+10), 10, 60 "vb2_offset_of() positive"); 61 } 62 63 { 64 struct vb2_packed_key k = {.key_offset = sizeof(k)}; 65 TEST_EQ((int)vb2_offset_of(&k, vb2_packed_key_data(&k)), 66 sizeof(k), "vb2_packed_key_data() adjacent"); 67 } 68 69 { 70 struct vb2_packed_key k = {.key_offset = 123}; 71 TEST_EQ((int)vb2_offset_of(&k, vb2_packed_key_data(&k)), 123, 72 "vb2_packed_key_data() spaced"); 73 } 74 75 { 76 struct vb2_signature s = {.sig_offset = sizeof(s)}; 77 TEST_EQ((int)vb2_offset_of(&s, vb2_signature_data(&s)), 78 sizeof(s), "vb2_signature_data() adjacent"); 79 } 80 81 { 82 struct vb2_signature s = {.sig_offset = 123}; 83 TEST_EQ((int)vb2_offset_of(&s, vb2_signature_data(&s)), 123, 84 "vb2_signature_data() spaced"); 85 } 86 87 { 88 uint8_t *p = (uint8_t *)test_helper_functions; 89 TEST_SUCC(vb2_verify_member_inside(p, 20, p, 6, 11, 3), 90 "MemberInside ok 1"); 91 TEST_SUCC(vb2_verify_member_inside(p, 20, p+4, 4, 8, 4), 92 "MemberInside ok 2"); 93 TEST_EQ(vb2_verify_member_inside(p, 20, p-4, 4, 8, 4), 94 VB2_ERROR_INSIDE_MEMBER_OUTSIDE, 95 "MemberInside member before parent"); 96 TEST_EQ(vb2_verify_member_inside(p, 20, p+20, 4, 8, 4), 97 VB2_ERROR_INSIDE_MEMBER_OUTSIDE, 98 "MemberInside member after parent"); 99 TEST_EQ(vb2_verify_member_inside(p, 20, p, 21, 0, 0), 100 VB2_ERROR_INSIDE_MEMBER_OUTSIDE, 101 "MemberInside member too big"); 102 TEST_EQ(vb2_verify_member_inside(p, 20, p, 4, 21, 0), 103 VB2_ERROR_INSIDE_DATA_OUTSIDE, 104 "MemberInside data after parent"); 105 TEST_EQ(vb2_verify_member_inside(p, 20, p, 4, SIZE_MAX, 0), 106 VB2_ERROR_INSIDE_DATA_OUTSIDE, 107 "MemberInside data before parent"); 108 TEST_EQ(vb2_verify_member_inside(p, 20, p, 4, 4, 17), 109 VB2_ERROR_INSIDE_DATA_OUTSIDE, 110 "MemberInside data too big"); 111 TEST_EQ(vb2_verify_member_inside(p, 20, p, 8, 4, 8), 112 VB2_ERROR_INSIDE_DATA_OVERLAP, 113 "MemberInside data overlaps member"); 114 TEST_EQ(vb2_verify_member_inside(p, -8, p, 12, 0, 0), 115 VB2_ERROR_INSIDE_PARENT_WRAPS, 116 "MemberInside wraparound 1"); 117 TEST_EQ(vb2_verify_member_inside(p, 20, p, -8, 0, 0), 118 VB2_ERROR_INSIDE_MEMBER_WRAPS, 119 "MemberInside wraparound 2"); 120 TEST_EQ(vb2_verify_member_inside(p, 20, p, 4, 4, -12), 121 VB2_ERROR_INSIDE_DATA_WRAPS, 122 "MemberInside wraparound 3"); 123 } 124 125 { 126 struct vb2_packed_key k = {.key_offset = sizeof(k), 127 .key_size = 128}; 128 TEST_SUCC(vb2_verify_packed_key_inside(&k, sizeof(k)+128, &k), 129 "PublicKeyInside ok 1"); 130 TEST_SUCC(vb2_verify_packed_key_inside(&k - 1, 131 2*sizeof(k)+128, &k), 132 "PublicKeyInside ok 2"); 133 TEST_EQ(vb2_verify_packed_key_inside(&k, 128, &k), 134 VB2_ERROR_INSIDE_DATA_OUTSIDE, 135 "PublicKeyInside key too big"); 136 } 137 138 { 139 struct vb2_packed_key k = {.key_offset = 100, 140 .key_size = 4}; 141 TEST_EQ(vb2_verify_packed_key_inside(&k, 99, &k), 142 VB2_ERROR_INSIDE_DATA_OUTSIDE, 143 "PublicKeyInside offset too big"); 144 } 145 146 { 147 struct vb2_signature s = {.sig_offset = sizeof(s), 148 .sig_size = 128}; 149 TEST_SUCC(vb2_verify_signature_inside(&s, sizeof(s)+128, &s), 150 "SignatureInside ok 1"); 151 TEST_SUCC(vb2_verify_signature_inside(&s - 1, 152 2*sizeof(s)+128, &s), 153 "SignatureInside ok 2"); 154 TEST_EQ(vb2_verify_signature_inside(&s, 128, &s), 155 VB2_ERROR_INSIDE_DATA_OUTSIDE, 156 "SignatureInside sig too big"); 157 } 158 159 { 160 struct vb2_signature s = {.sig_offset = 100, 161 .sig_size = 4}; 162 TEST_EQ(vb2_verify_signature_inside(&s, 99, &s), 163 VB2_ERROR_INSIDE_DATA_OUTSIDE, 164 "SignatureInside offset too big"); 165 } 166 } 167 168 int main(int argc, char* argv[]) 169 { 170 test_struct_packing(); 171 test_helper_functions(); 172 173 return gTestSuccess ? 0 : 255; 174 } 175
