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/* Copyright 2019 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 auxfw synchronization.
*/
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include "2common.h"
#include "2misc.h"
#include "2nvstorage.h"
#include "2sysincludes.h"
#include "host_common.h"
#include "load_kernel_fw.h"
#include "secdata_tpm.h"
#include "test_common.h"
#include "vboot_audio.h"
#include "vboot_display.h"
#include "vboot_kernel.h"
#include "vboot_struct.h"
/* Mock data */
static uint8_t shared_data[VB_SHARED_DATA_MIN_SIZE];
static VbSharedDataHeader *shared = (VbSharedDataHeader *)shared_data;
static struct vb2_context *ctx;
static uint8_t workbuf[VB2_KERNEL_WORKBUF_RECOMMENDED_SIZE]
__attribute__((aligned(VB2_WORKBUF_ALIGN)));
static struct vb2_shared_data *sd;
static struct vb2_gbb_header gbb;
static uint32_t screens_displayed[8];
static uint32_t screens_count = 0;
static vb2_error_t auxfw_retval;
static int auxfw_update_req;
static enum vb2_auxfw_update_severity auxfw_mock_severity;
static enum vb2_auxfw_update_severity auxfw_update_severity;
static int auxfw_protected;
static vb2_error_t auxfw_done_retval;
/* Reset mock data (for use before each test) */
static void ResetMocks(void)
{
TEST_SUCC(vb2api_init(workbuf, sizeof(workbuf), &ctx),
"vb2api_init failed");
ctx->flags = VB2_CONTEXT_EC_SYNC_SUPPORTED;
vb2_nv_init(ctx);
sd = vb2_get_sd(ctx);
sd->vbsd = shared;
sd->flags |= VB2_SD_FLAG_DISPLAY_AVAILABLE;
memset(&gbb, 0, sizeof(gbb));
memset(&shared_data, 0, sizeof(shared_data));
memset(screens_displayed, 0, sizeof(screens_displayed));
screens_count = 0;
auxfw_retval = VB2_SUCCESS;
auxfw_mock_severity = VB_AUX_FW_NO_UPDATE;
auxfw_update_severity = VB_AUX_FW_NO_UPDATE;
auxfw_update_req = 0;
auxfw_protected = 0;
auxfw_done_retval = VB2_SUCCESS;
}
/* Mock functions */
struct vb2_gbb_header *vb2_get_gbb(struct vb2_context *c)
{
return &gbb;
}
vb2_error_t VbDisplayScreen(struct vb2_context *c, uint32_t screen, int force,
const VbScreenData *data)
{
if (screens_count < ARRAY_SIZE(screens_displayed))
screens_displayed[screens_count++] = screen;
return VB2_SUCCESS;
}
vb2_error_t vb2ex_auxfw_check(enum vb2_auxfw_update_severity *severity)
{
*severity = auxfw_mock_severity;
auxfw_update_severity = auxfw_mock_severity;
return VB2_SUCCESS;
}
vb2_error_t vb2ex_auxfw_update(void)
{
if (auxfw_update_severity != VB_AUX_FW_NO_DEVICE &&
auxfw_update_severity != VB_AUX_FW_NO_UPDATE)
auxfw_update_req = 1;
return auxfw_retval;
}
vb2_error_t vb2ex_auxfw_finalize(struct vb2_context *c)
{
auxfw_protected = auxfw_update_severity != VB_AUX_FW_NO_DEVICE;
return auxfw_done_retval;
}
static void test_auxsync(vb2_error_t retval, int recovery_reason,
const char *desc)
{
TEST_EQ(vb2api_auxfw_sync(ctx), retval, desc);
TEST_EQ(vb2_nv_get(ctx, VB2_NV_RECOVERY_REQUEST),
recovery_reason, " recovery reason");
}
/* Tests */
static void VbSoftwareSyncTest(void)
{
ResetMocks();
gbb.flags |= VB2_GBB_FLAG_DISABLE_EC_SOFTWARE_SYNC;
auxfw_mock_severity = VB_AUX_FW_FAST_UPDATE;
test_auxsync(VB2_SUCCESS, 0,
"VB2_GBB_FLAG_DISABLE_EC_SOFTWARE_SYNC"
" disables auxiliary FW update request");
TEST_EQ(auxfw_update_req, 0, " aux fw update disabled");
TEST_EQ(auxfw_protected, 1, " aux fw protected");
ResetMocks();
gbb.flags |= VB2_GBB_FLAG_DISABLE_AUXFW_SOFTWARE_SYNC;
auxfw_mock_severity = VB_AUX_FW_FAST_UPDATE;
test_auxsync(VB2_SUCCESS, 0,
"VB2_GBB_FLAG_DISABLE_AUXFW_SOFTWARE_SYNC"
" disables auxiliary FW update request");
TEST_EQ(auxfw_update_req, 0, " aux fw update disabled");
TEST_EQ(auxfw_protected, 1, " aux fw protected");
ResetMocks();
auxfw_mock_severity = VB_AUX_FW_NO_DEVICE;
test_auxsync(VB2_SUCCESS, 0,
"No auxiliary FW update needed");
TEST_EQ(screens_count, 0,
" wait screen skipped");
TEST_EQ(auxfw_update_req, 0, " no aux fw update requested");
TEST_EQ(auxfw_protected, 0, " no aux fw protected");
ResetMocks();
auxfw_mock_severity = VB_AUX_FW_NO_UPDATE;
test_auxsync(VB2_SUCCESS, 0,
"No auxiliary FW update needed");
TEST_EQ(screens_count, 0,
" wait screen skipped");
TEST_EQ(auxfw_update_req, 0, " no aux fw update requested");
TEST_EQ(auxfw_protected, 1, " aux fw protected");
ResetMocks();
auxfw_mock_severity = VB_AUX_FW_FAST_UPDATE;
test_auxsync(VBERROR_EC_REBOOT_TO_RO_REQUIRED, 0,
"Fast auxiliary FW update needed");
TEST_EQ(screens_count, 0,
" wait screen skipped");
TEST_EQ(auxfw_update_req, 1, " aux fw update requested");
TEST_EQ(auxfw_protected, 0, " aux fw protected");
ResetMocks();
auxfw_mock_severity = VB_AUX_FW_SLOW_UPDATE;
sd->flags &= ~VB2_SD_FLAG_DISPLAY_AVAILABLE;
test_auxsync(VBERROR_REBOOT_REQUIRED, 0,
"Slow auxiliary FW update needed - reboot for display");
ResetMocks();
auxfw_mock_severity = VB_AUX_FW_SLOW_UPDATE;
test_auxsync(VBERROR_EC_REBOOT_TO_RO_REQUIRED, 0,
"Slow auxiliary FW update needed");
TEST_EQ(auxfw_update_req, 1, " aux fw update requested");
TEST_EQ(auxfw_protected, 0, " aux fw protected");
TEST_EQ(screens_displayed[0], VB_SCREEN_WAIT,
" wait screen forced");
ResetMocks();
auxfw_mock_severity = VB_AUX_FW_FAST_UPDATE;
auxfw_retval = VB2_ERROR_UNKNOWN;
test_auxsync(VB2_ERROR_UNKNOWN, VB2_RECOVERY_AUX_FW_UPDATE,
"Error updating AUX firmware");
}
int main(void)
{
VbSoftwareSyncTest();
return gTestSuccess ? 0 : 255;
}
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