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 misc library 6 */ 7 8 #include <stdio.h> 9 10 #include "2sysincludes.h" 11 #include "2api.h" 12 #include "2common.h" 13 #include "2misc.h" 14 #include "2nvstorage.h" 15 #include "2rsa.h" 16 #include "2secdata.h" 17 #include "test_common.h" 18 19 /* Common context for tests */ 20 static uint8_t workbuf[VB2_WORKBUF_RECOMMENDED_SIZE] 21 __attribute__ ((aligned (VB2_WORKBUF_ALIGN))); 22 static struct vb2_context cc; 23 static struct vb2_shared_data *sd; 24 25 const char mock_body[320] = "Mock body"; 26 const int mock_body_size = sizeof(mock_body); 27 const int mock_algorithm = VB2_ALG_RSA2048_SHA256; 28 const int mock_hash_alg = VB2_HASH_SHA256; 29 static const uint8_t mock_hwid_digest[VB2_GBB_HWID_DIGEST_SIZE] = { 30 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 31 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 32 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 33 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 34 }; 35 36 /* Mocked function data */ 37 38 static int retval_vb2_fw_parse_gbb; 39 static int retval_vb2_check_dev_switch; 40 static int retval_vb2_check_tpm_clear; 41 static int retval_vb2_select_fw_slot; 42 43 /* Type of test to reset for */ 44 enum reset_type { 45 FOR_MISC, 46 }; 47 48 static void reset_common_data(enum reset_type t) 49 { 50 memset(workbuf, 0xaa, sizeof(workbuf)); 51 52 memset(&cc, 0, sizeof(cc)); 53 cc.workbuf = workbuf; 54 cc.workbuf_size = sizeof(workbuf); 55 56 vb2_init_context(&cc); 57 sd = vb2_get_sd(&cc); 58 59 vb2_nv_init(&cc); 60 61 vb2_secdata_create(&cc); 62 vb2_secdata_init(&cc); 63 64 retval_vb2_fw_parse_gbb = VB2_SUCCESS; 65 retval_vb2_check_dev_switch = VB2_SUCCESS; 66 retval_vb2_check_tpm_clear = VB2_SUCCESS; 67 retval_vb2_select_fw_slot = VB2_SUCCESS; 68 69 memcpy(sd->gbb_hwid_digest, mock_hwid_digest, 70 sizeof(sd->gbb_hwid_digest)); 71 }; 72 73 /* Mocked functions */ 74 75 int vb2_fw_parse_gbb(struct vb2_context *ctx) 76 { 77 return retval_vb2_fw_parse_gbb; 78 } 79 80 int vb2_check_dev_switch(struct vb2_context *ctx) 81 { 82 return retval_vb2_check_dev_switch; 83 } 84 85 int vb2_check_tpm_clear(struct vb2_context *ctx) 86 { 87 return retval_vb2_check_tpm_clear; 88 } 89 90 int vb2_select_fw_slot(struct vb2_context *ctx) 91 { 92 return retval_vb2_select_fw_slot; 93 } 94 95 /* Tests */ 96 97 static void misc_tests(void) 98 { 99 /* Test secdata passthru functions */ 100 reset_common_data(FOR_MISC); 101 /* Corrupt secdata so initial check will fail */ 102 cc.secdata[0] ^= 0x42; 103 TEST_EQ(vb2api_secdata_check(&cc), VB2_ERROR_SECDATA_CRC, 104 "secdata check"); 105 TEST_SUCC(vb2api_secdata_create(&cc), "secdata create"); 106 TEST_SUCC(vb2api_secdata_check(&cc), "secdata check 2"); 107 108 /* Test fail passthru */ 109 reset_common_data(FOR_MISC); 110 vb2api_fail(&cc, 12, 34); 111 TEST_EQ(vb2_nv_get(&cc, VB2_NV_RECOVERY_REQUEST), 112 12, "vb2api_fail request"); 113 TEST_EQ(vb2_nv_get(&cc, VB2_NV_RECOVERY_SUBCODE), 114 34, "vb2api_fail subcode"); 115 } 116 117 static void phase1_tests(void) 118 { 119 reset_common_data(FOR_MISC); 120 TEST_SUCC(vb2api_fw_phase1(&cc), "phase1 good"); 121 TEST_EQ(sd->recovery_reason, 0, " not recovery"); 122 TEST_EQ(cc.flags & VB2_CONTEXT_RECOVERY_MODE, 0, " recovery flag"); 123 TEST_EQ(cc.flags & VB2_CONTEXT_CLEAR_RAM, 0, " clear ram flag"); 124 125 reset_common_data(FOR_MISC); 126 retval_vb2_fw_parse_gbb = VB2_ERROR_GBB_MAGIC; 127 TEST_EQ(vb2api_fw_phase1(&cc), VB2_ERROR_API_PHASE1_RECOVERY, 128 "phase1 gbb"); 129 TEST_EQ(sd->recovery_reason, VB2_RECOVERY_GBB_HEADER, 130 " recovery reason"); 131 TEST_NEQ(cc.flags & VB2_CONTEXT_RECOVERY_MODE, 0, " recovery flag"); 132 TEST_NEQ(cc.flags & VB2_CONTEXT_CLEAR_RAM, 0, " clear ram flag"); 133 134 135 reset_common_data(FOR_MISC); 136 retval_vb2_check_dev_switch = VB2_ERROR_MOCK; 137 TEST_EQ(vb2api_fw_phase1(&cc), VB2_ERROR_API_PHASE1_RECOVERY, 138 "phase1 dev switch"); 139 TEST_EQ(sd->recovery_reason, VB2_RECOVERY_DEV_SWITCH, 140 " recovery reason"); 141 TEST_NEQ(cc.flags & VB2_CONTEXT_RECOVERY_MODE, 0, " recovery flag"); 142 TEST_NEQ(cc.flags & VB2_CONTEXT_CLEAR_RAM, 0, " clear ram flag"); 143 144 reset_common_data(FOR_MISC); 145 cc.secdata[0] ^= 0x42; 146 TEST_EQ(vb2api_fw_phase1(&cc), VB2_ERROR_API_PHASE1_RECOVERY, 147 "phase1 secdata"); 148 TEST_EQ(sd->recovery_reason, VB2_RECOVERY_SECDATA_INIT, 149 " recovery reason"); 150 TEST_NEQ(cc.flags & VB2_CONTEXT_RECOVERY_MODE, 0, " recovery flag"); 151 TEST_NEQ(cc.flags & VB2_CONTEXT_CLEAR_RAM, 0, " clear ram flag"); 152 } 153 154 static void phase2_tests(void) 155 { 156 reset_common_data(FOR_MISC); 157 TEST_SUCC(vb2api_fw_phase2(&cc), "phase2 good"); 158 TEST_EQ(cc.flags & VB2_CONTEXT_CLEAR_RAM, 0, " clear ram flag"); 159 160 reset_common_data(FOR_MISC); 161 cc.flags |= VB2_CONTEXT_DEVELOPER_MODE; 162 TEST_SUCC(vb2api_fw_phase2(&cc), "phase1 dev"); 163 TEST_NEQ(cc.flags & VB2_CONTEXT_CLEAR_RAM, 0, " clear ram flag"); 164 165 reset_common_data(FOR_MISC); 166 retval_vb2_check_tpm_clear = VB2_ERROR_MOCK; 167 TEST_EQ(vb2api_fw_phase2(&cc), VB2_ERROR_MOCK, "phase2 tpm clear"); 168 TEST_EQ(vb2_nv_get(&cc, VB2_NV_RECOVERY_REQUEST), 169 VB2_RECOVERY_TPM_CLEAR_OWNER, " recovery reason"); 170 171 reset_common_data(FOR_MISC); 172 retval_vb2_select_fw_slot = VB2_ERROR_MOCK; 173 TEST_EQ(vb2api_fw_phase2(&cc), VB2_ERROR_MOCK, "phase2 slot"); 174 TEST_EQ(vb2_nv_get(&cc, VB2_NV_RECOVERY_REQUEST), 175 VB2_RECOVERY_FW_SLOT, " recovery reason"); 176 } 177 178 static void get_pcr_digest_tests(void) 179 { 180 uint8_t digest[VB2_PCR_DIGEST_RECOMMENDED_SIZE]; 181 uint8_t digest_org[VB2_PCR_DIGEST_RECOMMENDED_SIZE]; 182 uint32_t digest_size; 183 184 reset_common_data(FOR_MISC); 185 memset(digest_org, 0, sizeof(digest_org)); 186 187 digest_size = sizeof(digest); 188 memset(digest, 0, sizeof(digest)); 189 TEST_SUCC(vb2api_get_pcr_digest( 190 &cc, BOOT_MODE_PCR, digest, &digest_size), 191 "BOOT_MODE_PCR"); 192 TEST_EQ(digest_size, VB2_SHA1_DIGEST_SIZE, "BOOT_MODE_PCR digest size"); 193 TEST_TRUE(memcmp(digest, digest_org, digest_size), 194 "BOOT_MODE_PCR digest"); 195 196 digest_size = sizeof(digest); 197 memset(digest, 0, sizeof(digest)); 198 TEST_SUCC(vb2api_get_pcr_digest( 199 &cc, HWID_DIGEST_PCR, digest, &digest_size), 200 "HWID_DIGEST_PCR"); 201 TEST_EQ(digest_size, VB2_GBB_HWID_DIGEST_SIZE, 202 "HWID_DIGEST_PCR digest size"); 203 TEST_FALSE(memcmp(digest, mock_hwid_digest, digest_size), 204 "HWID_DIGEST_PCR digest"); 205 206 digest_size = 1; 207 TEST_EQ(vb2api_get_pcr_digest(&cc, BOOT_MODE_PCR, digest, &digest_size), 208 VB2_ERROR_API_PCR_DIGEST_BUF, 209 "BOOT_MODE_PCR buffer too small"); 210 211 TEST_EQ(vb2api_get_pcr_digest( 212 &cc, HWID_DIGEST_PCR + 1, digest, &digest_size), 213 VB2_ERROR_API_PCR_DIGEST, 214 "invalid enum vb2_pcr_digest"); 215 } 216 217 int main(int argc, char* argv[]) 218 { 219 misc_tests(); 220 phase1_tests(); 221 phase2_tests(); 222 223 get_pcr_digest_tests(); 224 225 return gTestSuccess ? 0 : 255; 226 } 227
