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/* Copyright (c) 2013 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 vboot_api_kernel, part 4 - select and load kernel
*/
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include "gbb_header.h"
#include "host_common.h"
#include "load_kernel_fw.h"
#include "rollback_index.h"
#include "test_common.h"
#include "vboot_audio.h"
#include "vboot_common.h"
#include "vboot_kernel.h"
#include "vboot_nvstorage.h"
#include "vboot_struct.h"
/* Mock data */
static VbCommonParams cparams;
static VbSelectAndLoadKernelParams kparams;
static VbNvContext vnc;
static uint8_t shared_data[VB_SHARED_DATA_MIN_SIZE];
static VbSharedDataHeader *shared = (VbSharedDataHeader *)shared_data;
static GoogleBinaryBlockHeader gbb;
static int ecsync_retval;
static uint32_t rkr_version;
static uint32_t new_version;
static int rkr_retval, rkw_retval, rkl_retval;
static VbError_t vbboot_retval;
/* Reset mock data (for use before each test) */
static void ResetMocks(void)
{
Memset(&cparams, 0, sizeof(cparams));
cparams.shared_data_size = sizeof(shared_data);
cparams.shared_data_blob = shared_data;
cparams.gbb_data = &gbb;
cparams.gbb_size = sizeof(gbb);
Memset(&kparams, 0, sizeof(kparams));
Memset(&gbb, 0, sizeof(gbb));
gbb.major_version = GBB_MAJOR_VER;
gbb.minor_version = GBB_MINOR_VER;
gbb.flags = 0;
Memset(&vnc, 0, sizeof(vnc));
VbNvSetup(&vnc);
VbNvTeardown(&vnc); /* So CRC gets generated */
Memset(&shared_data, 0, sizeof(shared_data));
VbSharedDataInit(shared, sizeof(shared_data));
ecsync_retval = VBERROR_SUCCESS;
rkr_version = new_version = 0x10002;
rkr_retval = rkw_retval = rkl_retval = VBERROR_SUCCESS;
vbboot_retval = VBERROR_SUCCESS;
}
/* Mock functions */
VbError_t VbExNvStorageRead(uint8_t *buf)
{
Memcpy(buf, vnc.raw, sizeof(vnc.raw));
return VBERROR_SUCCESS;
}
VbError_t VbExNvStorageWrite(const uint8_t *buf)
{
Memcpy(vnc.raw, buf, sizeof(vnc.raw));
return VBERROR_SUCCESS;
}
VbError_t VbEcSoftwareSync(int devidx, VbCommonParams *cparams)
{
return ecsync_retval;
}
uint32_t RollbackKernelRead(uint32_t *version)
{
*version = rkr_version;
return rkr_retval;
}
uint32_t RollbackKernelWrite(uint32_t version)
{
TEST_EQ(version, new_version, "RollbackKernelWrite new version");
rkr_version = version;
return rkw_retval;
}
uint32_t RollbackKernelLock(int recovery_mode)
{
return rkl_retval;
}
VbError_t VbBootNormal(VbCommonParams *cparams, LoadKernelParams *p)
{
shared->kernel_version_tpm = new_version;
if (vbboot_retval == -1)
return VBERROR_SIMULATED;
return vbboot_retval;
}
VbError_t VbBootDeveloper(VbCommonParams *cparams, LoadKernelParams *p)
{
shared->kernel_version_tpm = new_version;
if (vbboot_retval == -2)
return VBERROR_SIMULATED;
return vbboot_retval;
}
VbError_t VbBootRecovery(VbCommonParams *cparams, LoadKernelParams *p)
{
shared->kernel_version_tpm = new_version;
if (vbboot_retval == -3)
return VBERROR_SIMULATED;
return vbboot_retval;
}
static void test_slk(VbError_t retval, int recovery_reason, const char *desc)
{
uint32_t u;
TEST_EQ(VbSelectAndLoadKernel(&cparams, &kparams), retval, desc);
VbNvGet(&vnc, VBNV_RECOVERY_REQUEST, &u);
TEST_EQ(u, recovery_reason, " recovery reason");
}
/* Tests */
static void VbSlkTest(void)
{
ResetMocks();
test_slk(0, 0, "Normal");
/* Software sync */
ResetMocks();
shared->flags |= VBSD_EC_SOFTWARE_SYNC;
ecsync_retval = VBERROR_SIMULATED;
test_slk(VBERROR_SIMULATED, 0, "EC sync bad");
ResetMocks();
ecsync_retval = VBERROR_SIMULATED;
test_slk(0, 0, "EC sync not done");
ResetMocks();
shared->flags |= VBSD_EC_SOFTWARE_SYNC;
gbb.flags |= GBB_FLAG_DISABLE_EC_SOFTWARE_SYNC;
ecsync_retval = VBERROR_SIMULATED;
test_slk(0, 0, "EC sync disabled by GBB");
/* Rollback kernel version */
ResetMocks();
rkr_retval = 123;
test_slk(VBERROR_TPM_READ_KERNEL,
VBNV_RECOVERY_RW_TPM_R_ERROR, "Read kernel rollback");
ResetMocks();
new_version = 0x20003;
test_slk(0, 0, "Roll forward");
TEST_EQ(rkr_version, 0x20003, " version");
ResetMocks();
new_version = 0x20003;
shared->flags |= VBSD_FWB_TRIED;
shared->firmware_index = 1;
test_slk(0, 0, "Don't roll forward during try B");
TEST_EQ(rkr_version, 0x10002, " version");
ResetMocks();
vbboot_retval = VBERROR_INVALID_KERNEL_FOUND;
VbNvSet(&vnc, VBNV_RECOVERY_REQUEST, 123);
VbNvTeardown(&vnc);
shared->flags |= VBSD_FWB_TRIED;
shared->firmware_index = 1;
test_slk(VBERROR_INVALID_KERNEL_FOUND,
0, "Don't go to recovery if try b fails to find a kernel");
ResetMocks();
new_version = 0x20003;
rkw_retval = 123;
test_slk(VBERROR_TPM_WRITE_KERNEL,
VBNV_RECOVERY_RW_TPM_W_ERROR, "Write kernel rollback");
ResetMocks();
rkl_retval = 123;
test_slk(VBERROR_TPM_LOCK_KERNEL,
VBNV_RECOVERY_RW_TPM_L_ERROR, "Lock kernel rollback");
/* Boot normal */
ResetMocks();
vbboot_retval = -1;
test_slk(VBERROR_SIMULATED, 0, "Normal boot bad");
/* Boot dev */
ResetMocks();
shared->flags |= VBSD_BOOT_DEV_SWITCH_ON;
vbboot_retval = -2;
test_slk(VBERROR_SIMULATED, 0, "Dev boot bad");
ResetMocks();
shared->flags |= VBSD_BOOT_DEV_SWITCH_ON;
new_version = 0x20003;
test_slk(0, 0, "Dev doesn't roll forward");
TEST_EQ(rkr_version, 0x10002, " version");
/* Boot recovery */
ResetMocks();
shared->recovery_reason = 123;
vbboot_retval = -3;
test_slk(VBERROR_SIMULATED, 0, "Recovery boot bad");
ResetMocks();
shared->recovery_reason = 123;
new_version = 0x20003;
test_slk(0, 0, "Recovery doesn't roll forward");
TEST_EQ(rkr_version, 0x10002, " version");
ResetMocks();
shared->recovery_reason = 123;
rkr_retval = rkw_retval = rkl_retval = VBERROR_SIMULATED;
test_slk(0, 0, "Recovery ignore TPM errors");
// todo: rkr/w/l fail ignored if recovery
}
int main(void)
{
VbSlkTest();
if (vboot_api_stub_check_memory())
return 255;
return gTestSuccess ? 0 : 255;
}
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