| /* Copyright (c) 2014 The Chromium OS Authors. All rights reserved. |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| * |
| * Tests for misc library |
| */ |
| |
| #include <stdio.h> |
| |
| #include "2sysincludes.h" |
| #include "2api.h" |
| #include "2common.h" |
| #include "2misc.h" |
| #include "2nvstorage.h" |
| #include "2rsa.h" |
| #include "2secdata.h" |
| #include "test_common.h" |
| |
| /* Common context for tests */ |
| static uint8_t workbuf[VB2_WORKBUF_RECOMMENDED_SIZE] |
| __attribute__ ((aligned (VB2_WORKBUF_ALIGN))); |
| static struct vb2_context cc; |
| static struct vb2_shared_data *sd; |
| |
| const char mock_body[320] = "Mock body"; |
| const int mock_body_size = sizeof(mock_body); |
| const int mock_algorithm = VB2_ALG_RSA2048_SHA256; |
| const int mock_hash_alg = VB2_HASH_SHA256; |
| static const uint8_t mock_hwid_digest[VB2_GBB_HWID_DIGEST_SIZE] = { |
| 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, |
| 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, |
| 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, |
| 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, |
| }; |
| |
| /* Mocked function data */ |
| |
| static int retval_vb2_fw_parse_gbb; |
| static int retval_vb2_check_dev_switch; |
| static int retval_vb2_check_tpm_clear; |
| static int retval_vb2_select_fw_slot; |
| |
| /* Type of test to reset for */ |
| enum reset_type { |
| FOR_MISC, |
| }; |
| |
| static void reset_common_data(enum reset_type t) |
| { |
| memset(workbuf, 0xaa, sizeof(workbuf)); |
| |
| memset(&cc, 0, sizeof(cc)); |
| cc.workbuf = workbuf; |
| cc.workbuf_size = sizeof(workbuf); |
| |
| vb2_init_context(&cc); |
| sd = vb2_get_sd(&cc); |
| |
| vb2_nv_init(&cc); |
| |
| vb2_secdata_create(&cc); |
| vb2_secdata_init(&cc); |
| |
| retval_vb2_fw_parse_gbb = VB2_SUCCESS; |
| retval_vb2_check_dev_switch = VB2_SUCCESS; |
| retval_vb2_check_tpm_clear = VB2_SUCCESS; |
| retval_vb2_select_fw_slot = VB2_SUCCESS; |
| |
| memcpy(sd->gbb_hwid_digest, mock_hwid_digest, |
| sizeof(sd->gbb_hwid_digest)); |
| }; |
| |
| /* Mocked functions */ |
| |
| int vb2_fw_parse_gbb(struct vb2_context *ctx) |
| { |
| return retval_vb2_fw_parse_gbb; |
| } |
| |
| int vb2_check_dev_switch(struct vb2_context *ctx) |
| { |
| return retval_vb2_check_dev_switch; |
| } |
| |
| int vb2_check_tpm_clear(struct vb2_context *ctx) |
| { |
| return retval_vb2_check_tpm_clear; |
| } |
| |
| int vb2_select_fw_slot(struct vb2_context *ctx) |
| { |
| return retval_vb2_select_fw_slot; |
| } |
| |
| /* Tests */ |
| |
| static void misc_tests(void) |
| { |
| /* Test secdata passthru functions */ |
| reset_common_data(FOR_MISC); |
| /* Corrupt secdata so initial check will fail */ |
| cc.secdata[0] ^= 0x42; |
| TEST_EQ(vb2api_secdata_check(&cc), VB2_ERROR_SECDATA_CRC, |
| "secdata check"); |
| TEST_SUCC(vb2api_secdata_create(&cc), "secdata create"); |
| TEST_SUCC(vb2api_secdata_check(&cc), "secdata check 2"); |
| |
| /* Test fail passthru */ |
| reset_common_data(FOR_MISC); |
| vb2api_fail(&cc, 12, 34); |
| TEST_EQ(vb2_nv_get(&cc, VB2_NV_RECOVERY_REQUEST), |
| 12, "vb2api_fail request"); |
| TEST_EQ(vb2_nv_get(&cc, VB2_NV_RECOVERY_SUBCODE), |
| 34, "vb2api_fail subcode"); |
| } |
| |
| static void phase1_tests(void) |
| { |
| reset_common_data(FOR_MISC); |
| TEST_SUCC(vb2api_fw_phase1(&cc), "phase1 good"); |
| TEST_EQ(sd->recovery_reason, 0, " not recovery"); |
| TEST_EQ(cc.flags & VB2_CONTEXT_RECOVERY_MODE, 0, " recovery flag"); |
| TEST_EQ(cc.flags & VB2_CONTEXT_CLEAR_RAM, 0, " clear ram flag"); |
| |
| reset_common_data(FOR_MISC); |
| retval_vb2_fw_parse_gbb = VB2_ERROR_GBB_MAGIC; |
| TEST_EQ(vb2api_fw_phase1(&cc), VB2_ERROR_API_PHASE1_RECOVERY, |
| "phase1 gbb"); |
| TEST_EQ(sd->recovery_reason, VB2_RECOVERY_GBB_HEADER, |
| " recovery reason"); |
| TEST_NEQ(cc.flags & VB2_CONTEXT_RECOVERY_MODE, 0, " recovery flag"); |
| TEST_NEQ(cc.flags & VB2_CONTEXT_CLEAR_RAM, 0, " clear ram flag"); |
| |
| |
| reset_common_data(FOR_MISC); |
| retval_vb2_check_dev_switch = VB2_ERROR_MOCK; |
| TEST_EQ(vb2api_fw_phase1(&cc), VB2_ERROR_API_PHASE1_RECOVERY, |
| "phase1 dev switch"); |
| TEST_EQ(sd->recovery_reason, VB2_RECOVERY_DEV_SWITCH, |
| " recovery reason"); |
| TEST_NEQ(cc.flags & VB2_CONTEXT_RECOVERY_MODE, 0, " recovery flag"); |
| TEST_NEQ(cc.flags & VB2_CONTEXT_CLEAR_RAM, 0, " clear ram flag"); |
| |
| reset_common_data(FOR_MISC); |
| cc.secdata[0] ^= 0x42; |
| TEST_EQ(vb2api_fw_phase1(&cc), VB2_ERROR_API_PHASE1_RECOVERY, |
| "phase1 secdata"); |
| TEST_EQ(sd->recovery_reason, VB2_RECOVERY_SECDATA_INIT, |
| " recovery reason"); |
| TEST_NEQ(cc.flags & VB2_CONTEXT_RECOVERY_MODE, 0, " recovery flag"); |
| TEST_NEQ(cc.flags & VB2_CONTEXT_CLEAR_RAM, 0, " clear ram flag"); |
| } |
| |
| static void phase2_tests(void) |
| { |
| reset_common_data(FOR_MISC); |
| TEST_SUCC(vb2api_fw_phase2(&cc), "phase2 good"); |
| TEST_EQ(cc.flags & VB2_CONTEXT_CLEAR_RAM, 0, " clear ram flag"); |
| |
| reset_common_data(FOR_MISC); |
| cc.flags |= VB2_CONTEXT_DEVELOPER_MODE; |
| TEST_SUCC(vb2api_fw_phase2(&cc), "phase1 dev"); |
| TEST_NEQ(cc.flags & VB2_CONTEXT_CLEAR_RAM, 0, " clear ram flag"); |
| |
| reset_common_data(FOR_MISC); |
| retval_vb2_check_tpm_clear = VB2_ERROR_MOCK; |
| TEST_EQ(vb2api_fw_phase2(&cc), VB2_ERROR_MOCK, "phase2 tpm clear"); |
| TEST_EQ(vb2_nv_get(&cc, VB2_NV_RECOVERY_REQUEST), |
| VB2_RECOVERY_TPM_CLEAR_OWNER, " recovery reason"); |
| |
| reset_common_data(FOR_MISC); |
| retval_vb2_select_fw_slot = VB2_ERROR_MOCK; |
| TEST_EQ(vb2api_fw_phase2(&cc), VB2_ERROR_MOCK, "phase2 slot"); |
| TEST_EQ(vb2_nv_get(&cc, VB2_NV_RECOVERY_REQUEST), |
| VB2_RECOVERY_FW_SLOT, " recovery reason"); |
| } |
| |
| static void get_pcr_digest_tests(void) |
| { |
| uint8_t digest[VB2_PCR_DIGEST_RECOMMENDED_SIZE]; |
| uint8_t digest_org[VB2_PCR_DIGEST_RECOMMENDED_SIZE]; |
| uint32_t digest_size; |
| |
| reset_common_data(FOR_MISC); |
| memset(digest_org, 0, sizeof(digest_org)); |
| |
| digest_size = sizeof(digest); |
| memset(digest, 0, sizeof(digest)); |
| TEST_SUCC(vb2api_get_pcr_digest( |
| &cc, BOOT_MODE_PCR, digest, &digest_size), |
| "BOOT_MODE_PCR"); |
| TEST_EQ(digest_size, VB2_SHA1_DIGEST_SIZE, "BOOT_MODE_PCR digest size"); |
| TEST_TRUE(memcmp(digest, digest_org, digest_size), |
| "BOOT_MODE_PCR digest"); |
| |
| digest_size = sizeof(digest); |
| memset(digest, 0, sizeof(digest)); |
| TEST_SUCC(vb2api_get_pcr_digest( |
| &cc, HWID_DIGEST_PCR, digest, &digest_size), |
| "HWID_DIGEST_PCR"); |
| TEST_EQ(digest_size, VB2_GBB_HWID_DIGEST_SIZE, |
| "HWID_DIGEST_PCR digest size"); |
| TEST_FALSE(memcmp(digest, mock_hwid_digest, digest_size), |
| "HWID_DIGEST_PCR digest"); |
| |
| digest_size = 1; |
| TEST_EQ(vb2api_get_pcr_digest(&cc, BOOT_MODE_PCR, digest, &digest_size), |
| VB2_ERROR_API_PCR_DIGEST_BUF, |
| "BOOT_MODE_PCR buffer too small"); |
| |
| TEST_EQ(vb2api_get_pcr_digest( |
| &cc, HWID_DIGEST_PCR + 1, digest, &digest_size), |
| VB2_ERROR_API_PCR_DIGEST, |
| "invalid enum vb2_pcr_digest"); |
| } |
| |
| int main(int argc, char* argv[]) |
| { |
| misc_tests(); |
| phase1_tests(); |
| phase2_tests(); |
| |
| get_pcr_digest_tests(); |
| |
| return gTestSuccess ? 0 : 255; |
| } |