mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-21 01:18:52 +09:00
396 lines
9.6 KiB
C
396 lines
9.6 KiB
C
![]() |
/*
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* efi_selftest_block
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*
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* Copyright (c) 2017 Heinrich Schuchardt <xypron.glpk@gmx.de>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*
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* This test checks the driver for block IO devices.
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* A disk image is created in memory.
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* A handle is created for the new block IO device.
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* The block I/O protocol is installed on the handle.
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* ConnectController is used to setup partitions and to install the simple
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* file protocol.
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* A known file is read from the file system and verified.
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*/
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#include <efi_selftest.h>
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#include "efi_selftest_disk_image.h"
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/* Block size of compressed disk image */
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#define COMPRESSED_DISK_IMAGE_BLOCK_SIZE 8
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/* Binary logarithm of the block size */
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#define LB_BLOCK_SIZE 9
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static struct efi_boot_services *boottime;
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static const efi_guid_t block_io_protocol_guid = BLOCK_IO_GUID;
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static const efi_guid_t guid_device_path = DEVICE_PATH_GUID;
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static const efi_guid_t guid_simple_file_system_protocol =
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EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID;
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static efi_guid_t guid_vendor =
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EFI_GUID(0xdbca4c98, 0x6cb0, 0x694d,
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0x08, 0x72, 0x81, 0x9c, 0x65, 0x0c, 0xb7, 0xb8);
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static struct efi_device_path *dp;
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/* One 8 byte block of the compressed disk image */
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struct line {
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size_t addr;
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char *line;
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};
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/* Compressed disk image */
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struct compressed_disk_image {
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size_t length;
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struct line lines[];
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};
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static const struct compressed_disk_image img = EFI_ST_DISK_IMG;
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/* Decompressed disk image */
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static u8 *image;
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/*
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* Reset service of the block IO protocol.
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*
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* @this block IO protocol
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* @return status code
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*/
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static efi_status_t EFIAPI reset(
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struct efi_block_io *this,
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char extended_verification)
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{
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return EFI_SUCCESS;
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}
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/*
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* Read service of the block IO protocol.
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*
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* @this block IO protocol
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* @media_id media id
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* @lba start of the read in logical blocks
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* @buffer_size number of bytes to read
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* @buffer target buffer
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* @return status code
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*/
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static efi_status_t EFIAPI read_blocks(
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struct efi_block_io *this, u32 media_id, u64 lba,
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efi_uintn_t buffer_size, void *buffer)
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{
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u8 *start;
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if ((lba << LB_BLOCK_SIZE) + buffer_size > img.length)
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return EFI_INVALID_PARAMETER;
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start = image + (lba << LB_BLOCK_SIZE);
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boottime->copy_mem(buffer, start, buffer_size);
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return EFI_SUCCESS;
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}
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/*
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* Write service of the block IO protocol.
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*
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* @this block IO protocol
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* @media_id media id
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* @lba start of the write in logical blocks
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* @buffer_size number of bytes to read
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* @buffer source buffer
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* @return status code
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*/
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static efi_status_t EFIAPI write_blocks(
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struct efi_block_io *this, u32 media_id, u64 lba,
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efi_uintn_t buffer_size, void *buffer)
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{
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u8 *start;
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if ((lba << LB_BLOCK_SIZE) + buffer_size > img.length)
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return EFI_INVALID_PARAMETER;
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start = image + (lba << LB_BLOCK_SIZE);
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boottime->copy_mem(start, buffer, buffer_size);
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return EFI_SUCCESS;
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}
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/*
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* Flush service of the block IO protocol.
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*
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* @this block IO protocol
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* @return status code
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*/
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static efi_status_t EFIAPI flush_blocks(struct efi_block_io *this)
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{
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return EFI_SUCCESS;
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}
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/*
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* Decompress the disk image.
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*
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* @image decompressed disk image
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* @return status code
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*/
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static efi_status_t decompress(u8 **image)
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{
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u8 *buf;
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size_t i;
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size_t addr;
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size_t len;
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efi_status_t ret;
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ret = boottime->allocate_pool(EFI_LOADER_DATA, img.length,
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(void **)&buf);
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if (ret != EFI_SUCCESS) {
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efi_st_error("Out of memory\n");
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return ret;
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}
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boottime->set_mem(buf, img.length, 0);
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for (i = 0; ; ++i) {
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if (!img.lines[i].line)
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break;
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addr = img.lines[i].addr;
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len = COMPRESSED_DISK_IMAGE_BLOCK_SIZE;
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if (addr + len > img.length)
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len = img.length - addr;
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boottime->copy_mem(buf + addr, img.lines[i].line, len);
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}
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*image = buf;
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return ret;
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}
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static struct efi_block_io_media media;
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static struct efi_block_io block_io = {
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.media = &media,
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.reset = reset,
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.read_blocks = read_blocks,
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.write_blocks = write_blocks,
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.flush_blocks = flush_blocks,
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};
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/* Handle for the block IO device */
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static efi_handle_t disk_handle;
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/*
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* Setup unit test.
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*
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* @handle: handle of the loaded image
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* @systable: system table
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* @return: EFI_ST_SUCCESS for success
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*/
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static int setup(const efi_handle_t handle,
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const struct efi_system_table *systable)
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{
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efi_status_t ret;
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struct efi_device_path_vendor vendor_node;
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struct efi_device_path end_node;
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boottime = systable->boottime;
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decompress(&image);
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block_io.media->block_size = 1 << LB_BLOCK_SIZE;
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block_io.media->last_block = img.length >> LB_BLOCK_SIZE;
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ret = boottime->install_protocol_interface(
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&disk_handle, &block_io_protocol_guid,
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EFI_NATIVE_INTERFACE, &block_io);
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if (ret != EFI_SUCCESS) {
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efi_st_error("Failed to install block I/O protocol\n");
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return EFI_ST_FAILURE;
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}
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ret = boottime->allocate_pool(EFI_LOADER_DATA,
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sizeof(struct efi_device_path_vendor) +
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sizeof(struct efi_device_path),
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(void **)&dp);
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if (ret != EFI_SUCCESS) {
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efi_st_error("Out of memory\n");
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return EFI_ST_FAILURE;
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}
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vendor_node.dp.type = DEVICE_PATH_TYPE_HARDWARE_DEVICE;
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vendor_node.dp.sub_type = DEVICE_PATH_SUB_TYPE_VENDOR;
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vendor_node.dp.length = sizeof(struct efi_device_path_vendor);
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boottime->copy_mem(&vendor_node.guid, &guid_vendor,
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sizeof(efi_guid_t));
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boottime->copy_mem(dp, &vendor_node,
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sizeof(struct efi_device_path_vendor));
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end_node.type = DEVICE_PATH_TYPE_END;
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end_node.sub_type = DEVICE_PATH_SUB_TYPE_END;
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end_node.length = sizeof(struct efi_device_path);
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boottime->copy_mem((char *)dp + sizeof(struct efi_device_path_vendor),
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&end_node, sizeof(struct efi_device_path));
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ret = boottime->install_protocol_interface(&disk_handle,
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&guid_device_path,
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EFI_NATIVE_INTERFACE,
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dp);
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if (ret != EFI_SUCCESS) {
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efi_st_error("InstallProtocolInterface failed\n");
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return EFI_ST_FAILURE;
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}
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return EFI_ST_SUCCESS;
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}
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/*
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* Tear down unit test.
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*
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* @return: EFI_ST_SUCCESS for success
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*/
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static int teardown(void)
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{
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efi_status_t r = EFI_ST_SUCCESS;
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if (disk_handle) {
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r = boottime->uninstall_protocol_interface(disk_handle,
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&guid_device_path,
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dp);
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if (r != EFI_SUCCESS) {
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efi_st_error("Uninstall device path failed\n");
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return EFI_ST_FAILURE;
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}
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r = boottime->uninstall_protocol_interface(
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disk_handle, &block_io_protocol_guid,
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&block_io);
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if (r != EFI_SUCCESS) {
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efi_st_todo(
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"Failed to uninstall block I/O protocol\n");
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return EFI_ST_SUCCESS;
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}
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}
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if (image) {
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r = efi_free_pool(image);
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if (r != EFI_SUCCESS) {
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efi_st_error("Failed to free image\n");
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return EFI_ST_FAILURE;
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}
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}
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return r;
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}
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/*
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* Get length of device path without end tag.
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*
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* @dp device path
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* @return length of device path in bytes
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*/
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static efi_uintn_t dp_size(struct efi_device_path *dp)
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{
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struct efi_device_path *pos = dp;
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while (pos->type != DEVICE_PATH_TYPE_END)
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pos = (struct efi_device_path *)((char *)pos + pos->length);
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return (char *)pos - (char *)dp;
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}
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/*
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* Execute unit test.
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*
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* @return: EFI_ST_SUCCESS for success
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*/
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static int execute(void)
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{
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efi_status_t ret;
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efi_uintn_t no_handles, i, len;
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efi_handle_t *handles;
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efi_handle_t handle_partition = NULL;
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struct efi_device_path *dp_partition;
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struct efi_simple_file_system_protocol *file_system;
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struct efi_file_handle *root, *file;
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u64 buf_size;
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char buf[16] __aligned(ARCH_DMA_MINALIGN);
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ret = boottime->connect_controller(disk_handle, NULL, NULL, 1);
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if (ret != EFI_SUCCESS) {
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efi_st_error("Failed to connect controller\n");
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return EFI_ST_FAILURE;
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}
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ret = boottime->locate_handle_buffer(
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BY_PROTOCOL, &guid_device_path, NULL,
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&no_handles, &handles);
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if (ret != EFI_SUCCESS) {
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efi_st_error("Failed to locate handles\n");
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return EFI_ST_FAILURE;
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}
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len = dp_size(dp);
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for (i = 0; i < no_handles; ++i) {
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ret = boottime->open_protocol(handles[i], &guid_device_path,
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(void **)&dp_partition,
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NULL, NULL,
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EFI_OPEN_PROTOCOL_GET_PROTOCOL);
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if (ret != EFI_SUCCESS) {
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efi_st_error("Failed to open device path protocol\n");
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return EFI_ST_FAILURE;
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}
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if (len >= dp_size(dp_partition))
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continue;
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if (efi_st_memcmp(dp, dp_partition, len))
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continue;
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handle_partition = handles[i];
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break;
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}
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ret = boottime->free_pool(handles);
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if (ret != EFI_SUCCESS) {
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efi_st_error("Failed to free pool memory\n");
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return EFI_ST_FAILURE;
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}
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if (!handle_partition) {
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efi_st_error("Partition handle not found\n");
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return EFI_ST_FAILURE;
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}
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ret = boottime->open_protocol(handle_partition,
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&guid_simple_file_system_protocol,
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(void **)&file_system, NULL, NULL,
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EFI_OPEN_PROTOCOL_GET_PROTOCOL);
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if (ret != EFI_SUCCESS) {
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efi_st_error("Failed to open simple file system protocol\n");
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return EFI_ST_FAILURE;
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}
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ret = file_system->open_volume(file_system, &root);
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if (ret != EFI_SUCCESS) {
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efi_st_error("Failed to open volume\n");
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return EFI_ST_FAILURE;
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}
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ret = root->open(root, &file, (s16 *)L"hello.txt", EFI_FILE_MODE_READ,
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0);
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if (ret != EFI_SUCCESS) {
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efi_st_error("Failed to open file\n");
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return EFI_ST_FAILURE;
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}
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buf_size = sizeof(buf) - 1;
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ret = file->read(file, &buf_size, buf);
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if (ret != EFI_SUCCESS) {
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efi_st_error("Failed to read file\n");
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return EFI_ST_FAILURE;
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}
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if (efi_st_memcmp(buf, "Hello world!", 12)) {
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efi_st_error("Unexpected file content\n");
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return EFI_ST_FAILURE;
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}
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ret = file->close(file);
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if (ret != EFI_SUCCESS) {
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efi_st_error("Failed to close file\n");
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return EFI_ST_FAILURE;
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}
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ret = root->close(root);
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if (ret != EFI_SUCCESS) {
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efi_st_error("Failed to close volume\n");
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return EFI_ST_FAILURE;
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}
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return EFI_ST_SUCCESS;
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}
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EFI_UNIT_TEST(blkdev) = {
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.name = "block device",
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.phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT,
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.setup = setup,
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.execute = execute,
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.teardown = teardown,
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};
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