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/* 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 "2api.h"
#include "2common.h"
#include "2misc.h"
#include "2nvstorage.h"
#include "2rsa.h"
#include "2secdata.h"
#include "2sysincludes.h"
#include "test_common.h"
/* Common context for tests */
static uint8_t workbuf[VB2_FIRMWARE_WORKBUF_RECOMMENDED_SIZE]
__attribute__ ((aligned (VB2_WORKBUF_ALIGN)));
static struct vb2_context ctx;
static struct vb2_shared_data *sd;
static struct vb2_gbb_header gbb;
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 force_dev_mode;
static vb2_error_t retval_vb2_fw_parse_gbb;
static vb2_error_t retval_vb2_check_dev_switch;
static vb2_error_t retval_vb2_check_tpm_clear;
static vb2_error_t 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(&ctx, 0, sizeof(ctx));
ctx.workbuf = workbuf;
ctx.workbuf_size = sizeof(workbuf);
vb2_init_context(&ctx);
sd = vb2_get_sd(&ctx);
vb2_nv_init(&ctx);
vb2api_secdata_create(&ctx);
vb2_secdata_init(&ctx);
force_dev_mode = 0;
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(&gbb.hwid_digest, mock_hwid_digest,
sizeof(gbb.hwid_digest));
};
/* Mocked functions */
struct vb2_gbb_header *vb2_get_gbb(struct vb2_context *c)
{
return &gbb;
}
vb2_error_t vb2_fw_parse_gbb(struct vb2_context *c)
{
return retval_vb2_fw_parse_gbb;
}
vb2_error_t vb2_check_dev_switch(struct vb2_context *c)
{
if (force_dev_mode)
sd->flags |= VB2_SD_FLAG_DEV_MODE_ENABLED;
return retval_vb2_check_dev_switch;
}
vb2_error_t vb2_check_tpm_clear(struct vb2_context *c)
{
return retval_vb2_check_tpm_clear;
}
vb2_error_t vb2_select_fw_slot(struct vb2_context *c)
{
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 */
ctx.secdata[0] ^= 0x42;
TEST_EQ(vb2api_secdata_check(&ctx), VB2_ERROR_SECDATA_CRC,
"secdata check");
TEST_SUCC(vb2api_secdata_create(&ctx), "secdata create");
TEST_SUCC(vb2api_secdata_check(&ctx), "secdata check 2");
/* Test fail passthru */
reset_common_data(FOR_MISC);
vb2api_fail(&ctx, 12, 34);
TEST_EQ(vb2_nv_get(&ctx, VB2_NV_RECOVERY_REQUEST),
12, "vb2api_fail request");
TEST_EQ(vb2_nv_get(&ctx, VB2_NV_RECOVERY_SUBCODE),
34, "vb2api_fail subcode");
}
static void phase1_tests(void)
{
reset_common_data(FOR_MISC);
TEST_SUCC(vb2api_fw_phase1(&ctx), "phase1 good");
TEST_EQ(sd->recovery_reason, 0, " not recovery");
TEST_EQ(ctx.flags & VB2_CONTEXT_RECOVERY_MODE, 0, " recovery flag");
TEST_EQ(ctx.flags & VB2_CONTEXT_CLEAR_RAM, 0, " clear ram flag");
TEST_EQ(ctx.flags & VB2_CONTEXT_DISPLAY_INIT,
0, " display init context flag");
TEST_EQ(sd->flags & VB2_SD_FLAG_DISPLAY_AVAILABLE,
0, " display available SD flag");
reset_common_data(FOR_MISC);
retval_vb2_fw_parse_gbb = VB2_ERROR_GBB_MAGIC;
TEST_EQ(vb2api_fw_phase1(&ctx), VB2_ERROR_API_PHASE1_RECOVERY,
"phase1 gbb");
TEST_EQ(sd->recovery_reason, VB2_RECOVERY_GBB_HEADER,
" recovery reason");
TEST_NEQ(ctx.flags & VB2_CONTEXT_RECOVERY_MODE, 0, " recovery flag");
TEST_NEQ(ctx.flags & VB2_CONTEXT_CLEAR_RAM, 0, " clear ram flag");
/* Dev switch error in normal mode reboots to recovery */
reset_common_data(FOR_MISC);
retval_vb2_check_dev_switch = VB2_ERROR_MOCK;
TEST_EQ(vb2api_fw_phase1(&ctx), VB2_ERROR_MOCK, "phase1 dev switch");
TEST_EQ(vb2_nv_get(&ctx, VB2_NV_RECOVERY_REQUEST),
VB2_RECOVERY_DEV_SWITCH, " recovery request");
/* Dev switch error already in recovery mode just proceeds */
reset_common_data(FOR_MISC);
vb2_nv_set(&ctx, VB2_NV_RECOVERY_REQUEST, VB2_RECOVERY_RO_UNSPECIFIED);
retval_vb2_check_dev_switch = VB2_ERROR_MOCK;
TEST_EQ(vb2api_fw_phase1(&ctx), VB2_ERROR_API_PHASE1_RECOVERY,
"phase1 dev switch error in recovery");
TEST_EQ(sd->recovery_reason, VB2_RECOVERY_RO_UNSPECIFIED,
" recovery reason");
/* Check that DISPLAY_AVAILABLE gets set on recovery mode. */
TEST_NEQ(ctx.flags & VB2_CONTEXT_DISPLAY_INIT,
0, " display init context flag");
TEST_NEQ(sd->flags & VB2_SD_FLAG_DISPLAY_AVAILABLE,
0, " display available SD flag");
reset_common_data(FOR_MISC);
ctx.secdata[0] ^= 0x42;
TEST_EQ(vb2api_fw_phase1(&ctx), VB2_ERROR_API_PHASE1_RECOVERY,
"phase1 secdata");
TEST_EQ(sd->recovery_reason, VB2_RECOVERY_SECDATA_INIT,
" recovery reason");
TEST_NEQ(ctx.flags & VB2_CONTEXT_RECOVERY_MODE, 0, " recovery flag");
TEST_NEQ(ctx.flags & VB2_CONTEXT_CLEAR_RAM, 0, " clear ram flag");
/* Test secdata-requested reboot */
reset_common_data(FOR_MISC);
ctx.flags |= VB2_CONTEXT_SECDATA_WANTS_REBOOT;
TEST_EQ(vb2api_fw_phase1(&ctx), VB2_ERROR_API_PHASE1_SECDATA_REBOOT,
"phase1 secdata reboot normal");
TEST_EQ(sd->recovery_reason, 0, " recovery reason");
TEST_EQ(vb2_nv_get(&ctx, VB2_NV_TPM_REQUESTED_REBOOT),
1, " tpm reboot request");
TEST_EQ(vb2_nv_get(&ctx, VB2_NV_RECOVERY_REQUEST),
0, " recovery request");
reset_common_data(FOR_MISC);
vb2_nv_set(&ctx, VB2_NV_TPM_REQUESTED_REBOOT, 1);
TEST_SUCC(vb2api_fw_phase1(&ctx), "phase1 secdata reboot back normal");
TEST_EQ(sd->recovery_reason, 0, " recovery reason");
TEST_EQ(vb2_nv_get(&ctx, VB2_NV_TPM_REQUESTED_REBOOT),
0, " tpm reboot request");
TEST_EQ(vb2_nv_get(&ctx, VB2_NV_RECOVERY_REQUEST),
0, " recovery request");
reset_common_data(FOR_MISC);
ctx.flags |= VB2_CONTEXT_SECDATA_WANTS_REBOOT;
memset(ctx.secdata, 0, sizeof(ctx.secdata));
TEST_EQ(vb2api_fw_phase1(&ctx), VB2_ERROR_API_PHASE1_SECDATA_REBOOT,
"phase1 secdata reboot normal, secdata blank");
TEST_EQ(sd->recovery_reason, 0, " recovery reason");
TEST_EQ(vb2_nv_get(&ctx, VB2_NV_TPM_REQUESTED_REBOOT),
1, " tpm reboot request");
TEST_EQ(vb2_nv_get(&ctx, VB2_NV_RECOVERY_REQUEST),
0, " recovery request");
reset_common_data(FOR_MISC);
ctx.flags |= VB2_CONTEXT_SECDATA_WANTS_REBOOT;
vb2_nv_set(&ctx, VB2_NV_TPM_REQUESTED_REBOOT, 1);
TEST_EQ(vb2api_fw_phase1(&ctx), VB2_ERROR_API_PHASE1_RECOVERY,
"phase1 secdata reboot normal again");
TEST_EQ(sd->recovery_reason, VB2_RECOVERY_RO_TPM_REBOOT,
" recovery reason");
TEST_EQ(vb2_nv_get(&ctx, VB2_NV_TPM_REQUESTED_REBOOT),
1, " tpm reboot request");
TEST_EQ(vb2_nv_get(&ctx, VB2_NV_RECOVERY_REQUEST),
0, " recovery request");
reset_common_data(FOR_MISC);
ctx.flags |= VB2_CONTEXT_SECDATA_WANTS_REBOOT;
vb2_nv_set(&ctx, VB2_NV_RECOVERY_REQUEST, VB2_RECOVERY_RO_UNSPECIFIED);
TEST_EQ(vb2api_fw_phase1(&ctx), VB2_ERROR_API_PHASE1_SECDATA_REBOOT,
"phase1 secdata reboot recovery");
/* Recovery reason isn't set this boot because we're rebooting first */
TEST_EQ(sd->recovery_reason, 0, " recovery reason not set THIS boot");
TEST_EQ(vb2_nv_get(&ctx, VB2_NV_TPM_REQUESTED_REBOOT),
1, " tpm reboot request");
TEST_EQ(vb2_nv_get(&ctx, VB2_NV_RECOVERY_REQUEST),
VB2_RECOVERY_RO_UNSPECIFIED, " recovery request not cleared");
reset_common_data(FOR_MISC);
vb2_nv_set(&ctx, VB2_NV_TPM_REQUESTED_REBOOT, 1);
vb2_nv_set(&ctx, VB2_NV_RECOVERY_REQUEST, VB2_RECOVERY_RO_UNSPECIFIED);
TEST_EQ(vb2api_fw_phase1(&ctx), VB2_ERROR_API_PHASE1_RECOVERY,
"phase1 secdata reboot back recovery");
TEST_EQ(sd->recovery_reason, VB2_RECOVERY_RO_UNSPECIFIED,
" recovery reason");
TEST_EQ(vb2_nv_get(&ctx, VB2_NV_TPM_REQUESTED_REBOOT),
0, " tpm reboot request");
TEST_EQ(vb2_nv_get(&ctx, VB2_NV_RECOVERY_REQUEST), 0,
" recovery request cleared");
reset_common_data(FOR_MISC);
ctx.flags |= VB2_CONTEXT_SECDATA_WANTS_REBOOT;
vb2_nv_set(&ctx, VB2_NV_TPM_REQUESTED_REBOOT, 1);
vb2_nv_set(&ctx, VB2_NV_RECOVERY_REQUEST, VB2_RECOVERY_RO_UNSPECIFIED);
TEST_EQ(vb2api_fw_phase1(&ctx), VB2_ERROR_API_PHASE1_RECOVERY,
"phase1 secdata reboot recovery again");
TEST_EQ(sd->recovery_reason, VB2_RECOVERY_RO_UNSPECIFIED,
" recovery reason");
TEST_EQ(vb2_nv_get(&ctx, VB2_NV_TPM_REQUESTED_REBOOT),
1, " tpm reboot request");
TEST_EQ(vb2_nv_get(&ctx, VB2_NV_RECOVERY_REQUEST), 0,
" recovery request cleared");
/* Cases for checking DISPLAY_INIT and DISPLAY_AVAILABLE. */
reset_common_data(FOR_MISC);
ctx.flags |= VB2_CONTEXT_DISPLAY_INIT;
TEST_SUCC(vb2api_fw_phase1(&ctx), "phase1 with DISPLAY_INIT");
TEST_NEQ(ctx.flags & VB2_CONTEXT_DISPLAY_INIT,
0, " display init context flag");
TEST_NEQ(sd->flags & VB2_SD_FLAG_DISPLAY_AVAILABLE,
0, " display available SD flag");
reset_common_data(FOR_MISC);
vb2_nv_set(&ctx, VB2_NV_DISPLAY_REQUEST, 1);
TEST_SUCC(vb2api_fw_phase1(&ctx), "phase1 with DISPLAY_REQUEST");
TEST_NEQ(ctx.flags & VB2_CONTEXT_DISPLAY_INIT,
0, " display init context flag");
TEST_NEQ(sd->flags & VB2_SD_FLAG_DISPLAY_AVAILABLE,
0, " display available SD flag");
reset_common_data(FOR_MISC);
force_dev_mode = 1;
TEST_SUCC(vb2api_fw_phase1(&ctx), "phase1 in dev mode");
TEST_NEQ(ctx.flags & VB2_CONTEXT_DISPLAY_INIT,
0, " display init context flag");
TEST_NEQ(sd->flags & VB2_SD_FLAG_DISPLAY_AVAILABLE,
0, " display available SD flag");
}
static void phase2_tests(void)
{
reset_common_data(FOR_MISC);
TEST_SUCC(vb2api_fw_phase2(&ctx), "phase2 good");
TEST_EQ(ctx.flags & VB2_CONTEXT_CLEAR_RAM, 0, " clear ram flag");
TEST_EQ(ctx.flags & VB2_CONTEXT_FW_SLOT_B, 0, " slot b flag");
reset_common_data(FOR_MISC);
ctx.flags |= VB2_CONTEXT_DEVELOPER_MODE;
TEST_SUCC(vb2api_fw_phase2(&ctx), "phase2 dev");
TEST_NEQ(ctx.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(&ctx), VB2_ERROR_MOCK, "phase2 tpm clear");
TEST_EQ(vb2_nv_get(&ctx, 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(&ctx), VB2_ERROR_MOCK, "phase2 slot");
TEST_EQ(vb2_nv_get(&ctx, VB2_NV_RECOVERY_REQUEST),
VB2_RECOVERY_FW_SLOT, " recovery reason");
/* S3 resume exits before clearing RAM */
reset_common_data(FOR_MISC);
ctx.flags |= VB2_CONTEXT_S3_RESUME;
ctx.flags |= VB2_CONTEXT_DEVELOPER_MODE;
TEST_SUCC(vb2api_fw_phase2(&ctx), "phase2 s3 dev");
TEST_EQ(ctx.flags & VB2_CONTEXT_CLEAR_RAM, 0, " clear ram flag");
TEST_EQ(ctx.flags & VB2_CONTEXT_FW_SLOT_B, 0, " slot b flag");
reset_common_data(FOR_MISC);
ctx.flags |= VB2_CONTEXT_S3_RESUME;
vb2_nv_set(&ctx, VB2_NV_FW_TRIED, 1);
TEST_SUCC(vb2api_fw_phase2(&ctx), "phase2 s3");
TEST_NEQ(ctx.flags & VB2_CONTEXT_FW_SLOT_B, 0, " slot b flag");
}
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(
&ctx, 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(
&ctx, 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(&ctx, BOOT_MODE_PCR, digest, &digest_size),
VB2_ERROR_API_PCR_DIGEST_BUF,
"BOOT_MODE_PCR buffer too small");
TEST_EQ(vb2api_get_pcr_digest(
&ctx, 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;
}
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