Simon Glass | 527ba81 | 2013-07-25 08:48:47 -0600 | [diff] [blame] | 1 | /* Copyright (c) 2011 The Chromium OS Authors. All rights reserved. |
| 2 | * Use of this source code is governed by a BSD-style license that can be |
| 3 | * found in the LICENSE file. |
| 4 | * |
| 5 | * Tests for vboot region API |
| 6 | */ |
| 7 | |
| 8 | #include <stdint.h> |
| 9 | #include <stdio.h> |
| 10 | #include <stdlib.h> |
| 11 | #include <string.h> |
| 12 | |
| 13 | #include "bmpblk_font.h" |
| 14 | #include "gbb_header.h" |
| 15 | #include "host_common.h" |
| 16 | #include "rollback_index.h" |
| 17 | #include "test_common.h" |
| 18 | #include "vboot_common.h" |
| 19 | #include "vboot_nvstorage.h" |
| 20 | #include "vboot_struct.h" |
| 21 | |
| 22 | /* Mock data */ |
| 23 | static VbCommonParams cparams; |
| 24 | static VbNvContext vnc; |
| 25 | static VbSelectFirmwareParams fparams; |
| 26 | VbSelectAndLoadKernelParams kparams; |
| 27 | static char gbb_data[4096 + sizeof(GoogleBinaryBlockHeader)]; |
| 28 | static uint8_t shared_data[VB_SHARED_DATA_MIN_SIZE]; |
| 29 | static VbSharedDataHeader* shared = (VbSharedDataHeader*)shared_data; |
| 30 | /* Mock TPM versions */ |
| 31 | static uint32_t mock_tpm_version; |
| 32 | static uint32_t mock_lf_tpm_version; /* TPM version set by LoadFirmware() */ |
| 33 | static uint32_t mock_seen_region; |
| 34 | /* Mock return values, so we can simulate errors */ |
| 35 | static VbError_t mock_lf_retval; |
| 36 | |
| 37 | #define COMPRESSED_SIZE 200 |
| 38 | #define ORIGINAL_SIZE 400 |
| 39 | |
| 40 | /* Reset mock data (for use before each test) */ |
| 41 | static void ResetMocks(void) { |
| 42 | GoogleBinaryBlockHeader *gbb; |
| 43 | BmpBlockHeader *bhdr; |
| 44 | ImageInfo *image_info; |
| 45 | ScreenLayout *layout; |
| 46 | int gbb_used; |
| 47 | |
| 48 | Memset(&vnc, 0, sizeof(vnc)); |
| 49 | VbNvSetup(&vnc); |
| 50 | VbNvTeardown(&vnc); /* So CRC gets generated */ |
| 51 | |
| 52 | Memset(&cparams, 0, sizeof(cparams)); |
| 53 | cparams.shared_data_size = sizeof(shared_data); |
| 54 | cparams.shared_data_blob = shared_data; |
| 55 | |
| 56 | Memset(&fparams, 0, sizeof(fparams)); |
| 57 | |
| 58 | Memset(gbb_data, 0, sizeof(gbb_data)); |
| 59 | gbb = (GoogleBinaryBlockHeader *)gbb_data; |
| 60 | gbb->major_version = GBB_MAJOR_VER; |
| 61 | gbb->minor_version = GBB_MINOR_VER; |
| 62 | gbb->flags = 0; |
| 63 | gbb_used = sizeof(GoogleBinaryBlockHeader); |
| 64 | |
| 65 | gbb->hwid_offset = gbb_used; |
| 66 | strcpy(gbb_data + gbb->hwid_offset, "Test HWID"); |
| 67 | gbb->hwid_size = strlen(gbb_data + gbb->hwid_offset) + 1; |
| 68 | gbb_used = (gbb_used + gbb->hwid_size + 7) & ~7; |
| 69 | |
| 70 | gbb->bmpfv_offset = gbb_used; |
| 71 | bhdr = (BmpBlockHeader *)(gbb_data + gbb->bmpfv_offset); |
| 72 | gbb->bmpfv_size = sizeof(BmpBlockHeader); |
| 73 | gbb_used = (gbb_used + gbb->bmpfv_size + 7) & ~7; |
| 74 | memcpy(bhdr->signature, BMPBLOCK_SIGNATURE, BMPBLOCK_SIGNATURE_SIZE); |
| 75 | bhdr->major_version = BMPBLOCK_MAJOR_VERSION; |
| 76 | bhdr->minor_version = BMPBLOCK_MINOR_VERSION; |
| 77 | bhdr->number_of_localizations = 3; |
| 78 | bhdr->number_of_screenlayouts = 1; |
| 79 | |
| 80 | layout = (ScreenLayout *)(gbb_data + gbb_used); |
| 81 | gbb_used += sizeof(*layout); |
| 82 | layout->images[0].x = 1; |
| 83 | layout->images[0].image_info_offset = gbb_used - gbb->bmpfv_offset; |
| 84 | |
| 85 | /* First image is uncompressed */ |
| 86 | image_info = (ImageInfo *)(gbb_data + gbb_used); |
| 87 | image_info->format = FORMAT_BMP; |
| 88 | image_info->compressed_size = ORIGINAL_SIZE; |
| 89 | image_info->original_size = ORIGINAL_SIZE; |
| 90 | image_info->compression = COMPRESS_NONE; |
| 91 | gbb_used += sizeof(*image_info); |
| 92 | strcpy(gbb_data + gbb_used, "original"); |
| 93 | gbb_used += ORIGINAL_SIZE; |
| 94 | |
| 95 | /* Second image is compressed */ |
| 96 | layout->images[1].image_info_offset = gbb_used - gbb->bmpfv_offset; |
| 97 | layout->images[1].x = 2; |
| 98 | image_info = (ImageInfo *)(gbb_data + gbb_used); |
| 99 | image_info->format = FORMAT_BMP; |
| 100 | image_info->compressed_size = COMPRESSED_SIZE; |
| 101 | image_info->original_size = ORIGINAL_SIZE; |
| 102 | image_info->compression = COMPRESS_LZMA1; |
| 103 | gbb_used += sizeof(*image_info) + COMPRESSED_SIZE; |
| 104 | |
| 105 | Memset(&shared_data, 0, sizeof(shared_data)); |
| 106 | VbSharedDataInit(shared, sizeof(shared_data)); |
| 107 | shared->fw_keyblock_flags = 0xABCDE0; |
| 108 | |
| 109 | mock_tpm_version = mock_lf_tpm_version = 0x20004; |
| 110 | shared->fw_version_tpm_start = mock_tpm_version; |
| 111 | mock_lf_retval = 0; |
| 112 | mock_seen_region = 0; |
| 113 | } |
| 114 | |
| 115 | /****************************************************************************/ |
| 116 | /* Mocked verification functions */ |
| 117 | |
| 118 | uint32_t SetTPMBootModeState(int developer_mode, int recovery_mode, |
Bill Richardson | f4f395e | 2014-10-22 17:42:20 -0700 | [diff] [blame] | 119 | uint64_t fw_keyblock_flags |
| 120 | GoogleBinaryBlockHeader *gbb) { |
Simon Glass | 527ba81 | 2013-07-25 08:48:47 -0600 | [diff] [blame] | 121 | return VBERROR_SUCCESS; |
| 122 | } |
| 123 | |
| 124 | VbError_t VbExNvStorageRead(uint8_t* buf) { |
| 125 | Memcpy(buf, vnc.raw, sizeof(vnc.raw)); |
| 126 | return VBERROR_SUCCESS; |
| 127 | } |
| 128 | |
| 129 | VbError_t VbExNvStorageWrite(const uint8_t* buf) { |
| 130 | Memcpy(vnc.raw, buf, sizeof(vnc.raw)); |
| 131 | return VBERROR_SUCCESS; |
| 132 | } |
| 133 | |
| 134 | VbError_t VbExRegionRead(VbCommonParams *cparams, |
| 135 | enum vb_firmware_region region, uint32_t offset, |
| 136 | uint32_t size, void *buf) |
| 137 | { |
| 138 | if (region != VB_REGION_GBB) |
| 139 | return VBERROR_UNSUPPORTED_REGION; |
| 140 | mock_seen_region |= 1 << region; |
| 141 | if (offset + size > sizeof(gbb_data)) |
| 142 | return VBERROR_REGION_READ_INVALID; |
| 143 | memcpy(buf, gbb_data + offset, size); |
| 144 | return VBERROR_SUCCESS; |
| 145 | } |
| 146 | |
| 147 | VbError_t VbExDisplayImage(uint32_t x, uint32_t y, |
| 148 | void *buffer, uint32_t buffersize) |
| 149 | { |
| 150 | switch (x) { |
| 151 | case 1: |
| 152 | TEST_STR_EQ(buffer, "original", " uncompressed image"); |
| 153 | break; |
| 154 | case 2: |
| 155 | TEST_STR_EQ(buffer, "decompressed", " compressed image"); |
| 156 | break; |
| 157 | default: |
| 158 | TEST_STR_EQ(buffer, "invalid", " correct image"); |
| 159 | break; |
| 160 | } |
| 161 | return VBERROR_SUCCESS; |
| 162 | } |
| 163 | |
| 164 | VbError_t VbExDecompress(void *inbuf, uint32_t in_size, |
| 165 | uint32_t compression_type, |
| 166 | void *outbuf, uint32_t *out_size) |
| 167 | { |
| 168 | *out_size = ORIGINAL_SIZE; |
| 169 | strcpy(outbuf, "decompressed"); |
| 170 | return VBERROR_SUCCESS; |
| 171 | } |
| 172 | |
| 173 | int LoadFirmware(VbCommonParams *cparams, VbSelectFirmwareParams *fparams, |
| 174 | VbNvContext *vnc) { |
| 175 | shared->fw_version_tpm = mock_lf_tpm_version; |
| 176 | TEST_PTR_NEQ(cparams->gbb, NULL, " GBB allocated"); |
| 177 | return mock_lf_retval; |
| 178 | } |
| 179 | |
| 180 | /****************************************************************************/ |
| 181 | |
| 182 | static void VbRegionReadTest(void) { |
| 183 | /* Should read GBB */ |
| 184 | ResetMocks(); |
| 185 | TEST_TRUE(1, "Normal call"); |
| 186 | TEST_EQ(VbSelectFirmware(&cparams, &fparams), VBERROR_SUCCESS, |
| 187 | " Success"); |
| 188 | TEST_EQ(mock_seen_region, 1 << VB_REGION_GBB, " GBB region"); |
| 189 | TEST_PTR_EQ(cparams.gbb, NULL, " GBB free"); |
| 190 | |
| 191 | ResetMocks(); |
| 192 | TEST_EQ(VbSelectAndLoadKernel(&cparams, &kparams), |
| 193 | VBERROR_NO_DISK_FOUND, "Kernel"); |
| 194 | TEST_PTR_EQ(cparams.gbb, NULL, " GBB free"); |
| 195 | TEST_PTR_EQ(cparams.bmp, NULL, " BMP free"); |
| 196 | |
| 197 | ResetMocks(); |
| 198 | shared->flags |= VBSD_BOOT_DEV_SWITCH_ON; |
| 199 | TEST_EQ(VbSelectAndLoadKernel(&cparams, &kparams), |
| 200 | VBERROR_NO_DISK_FOUND, "Kernel"); |
| 201 | } |
| 202 | |
| 203 | int main(int argc, char* argv[]) { |
| 204 | int error_code = 0; |
| 205 | |
| 206 | VbRegionReadTest(); |
| 207 | |
| 208 | if (vboot_api_stub_check_memory()) |
| 209 | error_code = 255; |
| 210 | if (!gTestSuccess) |
| 211 | error_code = 255; |
| 212 | |
| 213 | return error_code; |
| 214 | } |