| Heinrich Schuchardt | e3cde3a | 2018-01-19 19:01:05 +0100 | [diff] [blame] | 1 | /* |
| 2 | * efi_selftest_start_image |
| 3 | * |
| 4 | * Copyright (c) 2018 Heinrich Schuchardt <xypron.glpk@gmx.de> |
| 5 | * |
| 6 | * SPDX-License-Identifier: GPL-2.0+ |
| 7 | * |
| 8 | * This test checks the StartImage boot service. |
| 9 | * The efi_selftest_miniapp_exit.efi application is loaded into memory |
| 10 | * and started. |
| 11 | */ |
| 12 | |
| 13 | #include <efi_selftest.h> |
| 14 | /* Include containing the miniapp.efi application */ |
| 15 | #include "efi_miniapp_file_image_exit.h" |
| 16 | |
| 17 | /* Block size of compressed disk image */ |
| 18 | #define COMPRESSED_DISK_IMAGE_BLOCK_SIZE 8 |
| 19 | |
| 20 | /* Binary logarithm of the block size */ |
| 21 | #define LB_BLOCK_SIZE 9 |
| 22 | |
| 23 | static efi_handle_t image_handle; |
| 24 | static struct efi_boot_services *boottime; |
| 25 | |
| 26 | /* One 8 byte block of the compressed disk image */ |
| 27 | struct line { |
| 28 | size_t addr; |
| 29 | char *line; |
| 30 | }; |
| 31 | |
| 32 | /* Compressed file image */ |
| 33 | struct compressed_file_image { |
| 34 | size_t length; |
| 35 | struct line lines[]; |
| 36 | }; |
| 37 | |
| 38 | static struct compressed_file_image img = EFI_ST_DISK_IMG; |
| 39 | |
| 40 | /* Decompressed file image */ |
| 41 | static u8 *image; |
| 42 | |
| 43 | /* |
| 44 | * Decompress the disk image. |
| 45 | * |
| 46 | * @image decompressed disk image |
| 47 | * @return status code |
| 48 | */ |
| 49 | static efi_status_t decompress(u8 **image) |
| 50 | { |
| 51 | u8 *buf; |
| 52 | size_t i; |
| 53 | size_t addr; |
| 54 | size_t len; |
| 55 | efi_status_t ret; |
| 56 | |
| 57 | ret = boottime->allocate_pool(EFI_LOADER_DATA, img.length, |
| 58 | (void **)&buf); |
| 59 | if (ret != EFI_SUCCESS) { |
| 60 | efi_st_error("Out of memory\n"); |
| 61 | return ret; |
| 62 | } |
| 63 | boottime->set_mem(buf, img.length, 0); |
| 64 | |
| 65 | for (i = 0; ; ++i) { |
| 66 | if (!img.lines[i].line) |
| 67 | break; |
| 68 | addr = img.lines[i].addr; |
| 69 | len = COMPRESSED_DISK_IMAGE_BLOCK_SIZE; |
| 70 | if (addr + len > img.length) |
| 71 | len = img.length - addr; |
| 72 | boottime->copy_mem(buf + addr, img.lines[i].line, len); |
| 73 | } |
| 74 | *image = buf; |
| 75 | return ret; |
| 76 | } |
| 77 | |
| 78 | /* |
| 79 | * Setup unit test. |
| 80 | * |
| 81 | * @handle: handle of the loaded image |
| 82 | * @systable: system table |
| 83 | * @return: EFI_ST_SUCCESS for success |
| 84 | */ |
| 85 | static int setup(const efi_handle_t handle, |
| 86 | const struct efi_system_table *systable) |
| 87 | { |
| 88 | image_handle = handle; |
| 89 | boottime = systable->boottime; |
| 90 | |
| 91 | /* Load the application image into memory */ |
| 92 | decompress(&image); |
| 93 | |
| 94 | return EFI_ST_SUCCESS; |
| 95 | } |
| 96 | |
| 97 | /* |
| 98 | * Tear down unit test. |
| 99 | * |
| 100 | * @return: EFI_ST_SUCCESS for success |
| 101 | */ |
| 102 | static int teardown(void) |
| 103 | { |
| 104 | efi_status_t r = EFI_ST_SUCCESS; |
| 105 | |
| 106 | if (image) { |
| 107 | r = efi_free_pool(image); |
| 108 | if (r != EFI_SUCCESS) { |
| 109 | efi_st_error("Failed to free image\n"); |
| 110 | return EFI_ST_FAILURE; |
| 111 | } |
| 112 | } |
| 113 | return r; |
| 114 | } |
| 115 | |
| 116 | /* |
| 117 | * Execute unit test. |
| 118 | * |
| 119 | * Load and start the application image. |
| 120 | * |
| 121 | * @return: EFI_ST_SUCCESS for success |
| 122 | */ |
| 123 | static int execute(void) |
| 124 | { |
| 125 | efi_status_t ret; |
| 126 | efi_handle_t handle; |
| 127 | |
| 128 | ret = boottime->load_image(false, image_handle, NULL, image, |
| 129 | img.length, &handle); |
| 130 | if (ret != EFI_SUCCESS) { |
| 131 | efi_st_error("Failed to load image\n"); |
| 132 | return EFI_ST_FAILURE; |
| 133 | } |
| 134 | ret = boottime->start_image(handle, NULL, NULL); |
| 135 | if (ret != EFI_UNSUPPORTED) { |
| 136 | efi_st_error("Wrong return value from application\n"); |
| 137 | return EFI_ST_FAILURE; |
| 138 | } |
| 139 | |
| 140 | return EFI_ST_SUCCESS; |
| 141 | } |
| 142 | |
| 143 | EFI_UNIT_TEST(startimage_exit) = { |
| 144 | .name = "start image exit", |
| 145 | .phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT, |
| 146 | .setup = setup, |
| 147 | .execute = execute, |
| 148 | .teardown = teardown, |
| 149 | }; |