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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 firmware display library.
*/
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "2sysincludes.h"
#include "2common.h"
#include "2misc.h"
#include "2nvstorage.h"
#include "bmpblk_font.h"
#include "gbb_access.h"
#include "gbb_header.h"
#include "host_common.h"
#include "test_common.h"
#include "vboot_common.h"
#include "vboot_display.h"
#include "vboot_kernel.h"
/* Mock data */
static uint8_t shared_data[VB_SHARED_DATA_MIN_SIZE];
static VbSharedDataHeader *shared = (VbSharedDataHeader *)shared_data;
static char gbb_data[4096 + sizeof(GoogleBinaryBlockHeader)];
static GoogleBinaryBlockHeader *gbb = (GoogleBinaryBlockHeader *)gbb_data;
static char debug_info[4096];
static struct vb2_context ctx;
struct vb2_shared_data *sd;
static uint8_t workbuf[VB2_KERNEL_WORKBUF_RECOMMENDED_SIZE];
static uint32_t mock_localization_count;
static uint32_t mock_altfw_mask;
/* Reset mock data (for use before each test) */
static void ResetMocks(void)
{
int gbb_used;
memset(gbb_data, 0, sizeof(gbb_data));
gbb->major_version = GBB_MAJOR_VER;
gbb->minor_version = GBB_MINOR_VER;
gbb->flags = 0;
gbb_used = sizeof(GoogleBinaryBlockHeader);
gbb->hwid_offset = gbb_used;
strcpy(gbb_data + gbb->hwid_offset, "Test HWID");
gbb->hwid_size = strlen(gbb_data + gbb->hwid_offset) + 1;
gbb_used = (gbb_used + gbb->hwid_size + 7) & ~7;
mock_localization_count = 3;
mock_altfw_mask = 3 << 1; /* This mask selects 1 and 2 */
gbb->header_size = sizeof(*gbb);
gbb->rootkey_offset = gbb_used;
gbb->rootkey_size = 64;
gbb_used += 64;
gbb->recovery_key_offset = gbb_used;
gbb->recovery_key_size = 64;
gbb_used += 64;
memset(&ctx, 0, sizeof(ctx));
ctx.workbuf = workbuf;
ctx.workbuf_size = sizeof(workbuf);
vb2_init_context(&ctx);
vb2_nv_init(&ctx);
sd = vb2_get_sd(&ctx);
sd->vbsd = shared;
sd->gbb = (struct vb2_gbb_header *)gbb_data;
sd->gbb_size = sizeof(gbb_data);
memset(&shared_data, 0, sizeof(shared_data));
VbSharedDataInit(shared, sizeof(shared_data));
*debug_info = 0;
}
/* Mocks */
VbError_t VbExGetLocalizationCount(uint32_t *count) {
if (mock_localization_count == 0xffffffff)
return VBERROR_UNKNOWN;
*count = mock_localization_count;
return VBERROR_SUCCESS;
}
uint32_t VbExGetAltFwIdxMask() {
return mock_altfw_mask;
}
VbError_t VbExDisplayDebugInfo(const char *info_str)
{
strncpy(debug_info, info_str, sizeof(debug_info));
debug_info[sizeof(debug_info) - 1] = '\0';
return VBERROR_SUCCESS;
}
/* Test displaying debug info */
static void DebugInfoTest(void)
{
char hwid[256];
int i;
/* Recovery string should be non-null for any code */
for (i = 0; i < 0x100; i++)
TEST_PTR_NEQ(RecoveryReasonString(i), NULL, "Non-null reason");
/* HWID should come from the gbb */
ResetMocks();
VbGbbReadHWID(&ctx, hwid, sizeof(hwid));
TEST_EQ(strcmp(hwid, "Test HWID"), 0, "HWID");
ResetMocks();
sd->gbb_size = 0;
VbGbbReadHWID(&ctx, hwid, sizeof(hwid));
TEST_EQ(strcmp(hwid, "{INVALID}"), 0, "HWID bad gbb");
ResetMocks();
sd->gbb->hwid_size = 0;
VbGbbReadHWID(&ctx, hwid, sizeof(hwid));
TEST_EQ(strcmp(hwid, "{INVALID}"), 0, "HWID missing");
ResetMocks();
sd->gbb->hwid_offset = sd->gbb_size + 1;
VbGbbReadHWID(&ctx, hwid, sizeof(hwid));
TEST_EQ(strcmp(hwid, "{INVALID}"), 0, "HWID past end");
ResetMocks();
sd->gbb->hwid_size = sd->gbb_size;
VbGbbReadHWID(&ctx, hwid, sizeof(hwid));
TEST_EQ(strcmp(hwid, "{INVALID}"), 0, "HWID overflow");
/* Display debug info */
ResetMocks();
VbDisplayDebugInfo(&ctx);
TEST_NEQ(*debug_info, '\0', "Some debug info was displayed");
}
/* Test display key checking */
static void DisplayKeyTest(void)
{
ResetMocks();
VbCheckDisplayKey(&ctx, 'q');
TEST_EQ(*debug_info, '\0', "DisplayKey q = does nothing");
ResetMocks();
VbCheckDisplayKey(&ctx, '\t');
TEST_NEQ(*debug_info, '\0', "DisplayKey tab = display");
/* Toggle localization */
ResetMocks();
vb2_nv_set(&ctx, VB2_NV_LOCALIZATION_INDEX, 0);
VbCheckDisplayKey(&ctx, VB_KEY_DOWN);
TEST_EQ(vb2_nv_get(&ctx, VB2_NV_LOCALIZATION_INDEX), 2,
"DisplayKey up");
VbCheckDisplayKey(&ctx, VB_KEY_LEFT);
vb2_nv_get(&ctx, VB2_NV_LOCALIZATION_INDEX);
TEST_EQ(vb2_nv_get(&ctx, VB2_NV_LOCALIZATION_INDEX), 1,
"DisplayKey left");
VbCheckDisplayKey(&ctx, VB_KEY_RIGHT);
vb2_nv_get(&ctx, VB2_NV_LOCALIZATION_INDEX);
TEST_EQ(vb2_nv_get(&ctx, VB2_NV_LOCALIZATION_INDEX), 2,
"DisplayKey right");
VbCheckDisplayKey(&ctx, VB_KEY_UP);
vb2_nv_get(&ctx, VB2_NV_LOCALIZATION_INDEX);
TEST_EQ(vb2_nv_get(&ctx, VB2_NV_LOCALIZATION_INDEX), 0,
"DisplayKey up");
/* Reset localization if localization count is invalid */
ResetMocks();
vb2_nv_set(&ctx, VB2_NV_LOCALIZATION_INDEX, 1);
mock_localization_count = 0xffffffff;
VbCheckDisplayKey(&ctx, VB_KEY_UP);
TEST_EQ(vb2_nv_get(&ctx, VB2_NV_LOCALIZATION_INDEX), 0,
"DisplayKey invalid");
}
int main(void)
{
DebugInfoTest();
DisplayKeyTest();
return gTestSuccess ? 0 : 255;
}
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