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u-boot/lib/efi_selftest/efi_selftest_loadimage.c
Heinrich Schuchardt 0dfc4c84d8 efi_selftest: prefix test functions with efi_st_ 
An upcoming patch set creates a global function flush(). To make debugging
easier we should not use the same name for a static function.

Rename static functions in the LoadImage() unit test adding an efi_st_
prefix.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
2022-09-30 02:03:23 +02:00

530 lines
13 KiB
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// SPDX-License-Identifier: GPL-2.0+
/*
* efi_selftest_loadimage
*
* Copyright (c) 2019 Heinrich Schuchardt <xypron.glpk@gmx.de>
*
* This test checks the LoadImage and StartImage boot service.
*
* The efi_selftest_miniapp_exit.efi application is loaded via a file device
* path and started.
*/
#include <efi_selftest.h>
/* Include containing the efi_selftest_miniapp_exit.efi application */
#include "efi_miniapp_file_image_exit.h"
/* Block size of compressed disk image */
#define COMPRESSED_DISK_IMAGE_BLOCK_SIZE 8
/* Binary logarithm of the block size */
#define LB_BLOCK_SIZE 9
#define FILE_NAME u"app.efi"
#define VOLUME_NAME u"EfiDisk"
static struct efi_boot_services *boottime;
static efi_handle_t handle_image;
static efi_handle_t handle_volume;
static const efi_guid_t guid_device_path = EFI_DEVICE_PATH_PROTOCOL_GUID;
static const efi_guid_t guid_simple_file_system_protocol =
EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID;
static const efi_guid_t guid_file_info = EFI_FILE_INFO_GUID;
static const efi_guid_t guid_file_system_info = EFI_FILE_SYSTEM_INFO_GUID;
/* One 8 byte block of the compressed disk image */
struct line {
size_t addr;
char *line;
};
/* Compressed file image */
struct compressed_file_image {
size_t length;
struct line lines[];
};
/* File info including file name */
struct file_info {
struct efi_file_info info;
u16 file_name[sizeof(FILE_NAME)];
};
/* File system info including volume name */
struct file_system_info {
struct efi_file_system_info info;
u16 file_name[sizeof(VOLUME_NAME)];
};
/* Compressed file image */
static struct compressed_file_image img = EFI_ST_DISK_IMG;
/* Pointer to decompressed file image */
static u8 *image;
/* File info */
static struct file_info priv_file_info = {
{
.size = sizeof(struct file_info),
.attribute = EFI_FILE_READ_ONLY,
},
FILE_NAME,
};
/* Pointer to file info */
struct efi_file_info *file_info = &priv_file_info.info;
/* Volume device path */
static struct {
struct efi_device_path_vendor vendor;
struct efi_device_path end;
} __packed dp_volume = {
.vendor = {
.dp = {
.type = DEVICE_PATH_TYPE_HARDWARE_DEVICE,
.sub_type = DEVICE_PATH_SUB_TYPE_VENDOR,
.length = sizeof(struct efi_device_path_vendor),
},
.guid = EFI_GUID(0x4f9a0ebf, 0xa179, 0x88a6, 0x25, 0x68,
0x10, 0x72, 0xb1, 0x93, 0x51, 0x71),
},
.end = {
.type = DEVICE_PATH_TYPE_END,
.sub_type = DEVICE_PATH_SUB_TYPE_END,
.length = sizeof(struct efi_device_path),
}
};
/* File device path */
static struct {
struct efi_device_path_vendor vendor;
struct efi_device_path path;
u16 file[sizeof(FILE_NAME)];
struct efi_device_path end;
} __packed dp_file = {
.vendor = {
.dp = {
.type = DEVICE_PATH_TYPE_HARDWARE_DEVICE,
.sub_type = DEVICE_PATH_SUB_TYPE_VENDOR,
.length = sizeof(struct efi_device_path_vendor),
},
.guid = EFI_GUID(0x4f9a0ebf, 0xa179, 0x88a6, 0x25, 0x68,
0x10, 0x72, 0xb1, 0x93, 0x51, 0x71),
},
.path = {
.type = DEVICE_PATH_TYPE_MEDIA_DEVICE,
.sub_type = DEVICE_PATH_SUB_TYPE_FILE_PATH,
.length = sizeof(struct efi_device_path) + sizeof(dp_file.file),
},
.file = FILE_NAME,
.end = {
.type = DEVICE_PATH_TYPE_END,
.sub_type = DEVICE_PATH_SUB_TYPE_END,
.length = sizeof(struct efi_device_path),
}
};
/* File system info */
static struct file_system_info priv_file_system_info = {
{
.size = sizeof(struct file_system_info),
.read_only = true,
.volume_size = 0x100000,
.free_space = 0x0,
.block_size = 0x200,
},
VOLUME_NAME
};
/* Pointer to file system info */
static struct efi_file_system_info *file_system_info =
&priv_file_system_info.info;
/* Forward definitions of file and file system functions */
static efi_status_t EFIAPI efi_st_open_volume
(struct efi_simple_file_system_protocol *this,
struct efi_file_handle **root);
static efi_status_t EFIAPI efi_st_open
(struct efi_file_handle *this,
struct efi_file_handle **new_handle,
u16 *file_name, u64 open_mode, u64 attributes);
static efi_status_t EFIAPI efi_st_close(struct efi_file_handle *this);
static efi_status_t EFIAPI efi_st_delete(struct efi_file_handle *this);
static efi_status_t EFIAPI efi_st_read
(struct efi_file_handle *this, efi_uintn_t *buffer_size, void *buffer);
static efi_status_t EFIAPI efi_st_write
(struct efi_file_handle *this, efi_uintn_t *buffer_size, void *buffer);
static efi_status_t EFIAPI efi_st_getpos(struct efi_file_handle *this,
u64 *pos);
static efi_status_t EFIAPI efi_st_setpos(struct efi_file_handle *this, u64 pos);
static efi_status_t EFIAPI efi_st_getinfo
(struct efi_file_handle *this, const efi_guid_t *info_type,
efi_uintn_t *buffer_size, void *buffer);
static efi_status_t EFIAPI efi_st_setinfo
(struct efi_file_handle *this, const efi_guid_t *info_type,
efi_uintn_t buffer_size, void *buffer);
static efi_status_t EFIAPI efi_st_flush(struct efi_file_handle *this);
/* Internal information about status of file system */
static struct {
/* Difference of volume open count minus volume close count */
int volume_open_count;
/* Difference of file open count minus file close count */
int file_open_count;
/* File size */
u64 file_size;
/* Current position in file */
u64 file_pos;
} priv;
/* EFI_FILE_PROTOCOL for file */
static struct efi_file_handle file = {
.rev = 0x00010000,
.open = efi_st_open,
.close = efi_st_close,
.delete = efi_st_delete,
.read = efi_st_read,
.write = efi_st_write,
.getpos = efi_st_getpos,
.setpos = efi_st_setpos,
.getinfo = efi_st_getinfo,
.setinfo = efi_st_setinfo,
.flush = efi_st_flush,
};
/* EFI_FILE_PROTOCOL for root directory */
static struct efi_file_handle volume = {
.rev = 0x00010000,
.open = efi_st_open,
.close = efi_st_close,
.delete = efi_st_delete,
.read = efi_st_read,
.write = efi_st_write,
.getpos = efi_st_getpos,
.setpos = efi_st_setpos,
.getinfo = efi_st_getinfo,
.setinfo = efi_st_setinfo,
.flush = efi_st_flush,
};
/* EFI_SIMPLE_FILE_SYSTEM_PROTOCOL of the block device */
struct efi_simple_file_system_protocol file_system = {
.rev = 0x00010000,
.open_volume = efi_st_open_volume,
};
static efi_status_t EFIAPI efi_st_open_volume
(struct efi_simple_file_system_protocol *this,
struct efi_file_handle **root)
{
if (this != &file_system || !root)
return EFI_INVALID_PARAMETER;
*root = &volume;
priv.volume_open_count++;
return EFI_SUCCESS;
}
static efi_status_t EFIAPI efi_st_open
(struct efi_file_handle *this,
struct efi_file_handle **new_handle,
u16 *file_name, u64 open_mode, u64 attributes)
{
if (this != &volume)
return EFI_INVALID_PARAMETER;
*new_handle = &file;
priv.file_pos = 0;
priv.file_open_count++;
return EFI_SUCCESS;
}
static efi_status_t EFIAPI efi_st_close(struct efi_file_handle *this)
{
if (this == &file)
priv.file_open_count--;
else if (this == &volume)
priv.volume_open_count--;
else
return EFI_INVALID_PARAMETER;
return EFI_SUCCESS;
}
static efi_status_t EFIAPI efi_st_delete(struct efi_file_handle *this)
{
if (this != &file)
return EFI_INVALID_PARAMETER;
return EFI_UNSUPPORTED;
}
static efi_status_t EFIAPI efi_st_read
(struct efi_file_handle *this, efi_uintn_t *buffer_size, void *buffer)
{
if (this != &file)
return EFI_INVALID_PARAMETER;
if (priv.file_pos >= img.length)
*buffer_size = 0;
else if (priv.file_pos + *buffer_size > img.length)
*buffer_size = img.length - priv.file_pos;
boottime->copy_mem(buffer, &image[priv.file_pos], *buffer_size);
priv.file_pos += *buffer_size;
return EFI_SUCCESS;
}
static efi_status_t EFIAPI efi_st_write
(struct efi_file_handle *this, efi_uintn_t *buffer_size, void *buffer)
{
if (this != &file)
return EFI_INVALID_PARAMETER;
return EFI_UNSUPPORTED;
}
static efi_status_t EFIAPI efi_st_getpos(struct efi_file_handle *this, u64 *pos)
{
if (this != &file)
return EFI_INVALID_PARAMETER;
*pos = priv.file_pos;
return EFI_SUCCESS;
}
static efi_status_t EFIAPI efi_st_setpos(struct efi_file_handle *this, u64 pos)
{
if (this != &file)
return EFI_INVALID_PARAMETER;
priv.file_pos = pos;
return EFI_SUCCESS;
}
static efi_status_t EFIAPI efi_st_getinfo
(struct efi_file_handle *this, const efi_guid_t *info_type,
efi_uintn_t *buffer_size, void *buffer)
{
if (this == &file) {
if (memcmp(info_type, &guid_file_info, sizeof(efi_guid_t)))
return EFI_INVALID_PARAMETER;
if (*buffer_size >= sizeof(struct file_info)) {
boottime->copy_mem(buffer, file_info,
sizeof(struct file_info));
} else {
*buffer_size = sizeof(struct file_info);
return EFI_BUFFER_TOO_SMALL;
}
} else if (this == &volume) {
if (memcmp(info_type, &guid_file_system_info,
sizeof(efi_guid_t)))
return EFI_INVALID_PARAMETER;
if (*buffer_size >= sizeof(struct file_system_info)) {
boottime->copy_mem(buffer, file_system_info,
sizeof(struct file_system_info));
} else {
*buffer_size = sizeof(struct file_system_info);
return EFI_BUFFER_TOO_SMALL;
}
} else {
return EFI_INVALID_PARAMETER;
}
return EFI_SUCCESS;
}
static efi_status_t EFIAPI efi_st_setinfo
(struct efi_file_handle *this, const efi_guid_t *info_type,
efi_uintn_t buffer_size, void *buffer)
{
if (this != &file)
return EFI_INVALID_PARAMETER;
return EFI_UNSUPPORTED;
}
static efi_status_t EFIAPI efi_st_flush(struct efi_file_handle *this)
{
if (this != &file)
return EFI_INVALID_PARAMETER;
return EFI_UNSUPPORTED;
}
/*
* Decompress the disk image.
*
* @image decompressed disk image
* Return: status code
*/
static efi_status_t decompress(u8 **image)
{
u8 *buf;
size_t i;
size_t addr;
size_t len;
efi_status_t ret;
ret = boottime->allocate_pool(EFI_LOADER_DATA, img.length,
(void **)&buf);
if (ret != EFI_SUCCESS) {
efi_st_error("Out of memory\n");
return ret;
}
boottime->set_mem(buf, img.length, 0);
for (i = 0; ; ++i) {
if (!img.lines[i].line)
break;
addr = img.lines[i].addr;
len = COMPRESSED_DISK_IMAGE_BLOCK_SIZE;
if (addr + len > img.length)
len = img.length - addr;
boottime->copy_mem(buf + addr, img.lines[i].line, len);
}
*image = buf;
priv.file_size = img.length;
file_info->file_size = img.length;
return ret;
}
/*
* Setup unit test.
*
* Decompress application image and provide a handle for the in memory block
* device.
*
* @handle: handle of the loaded image
* @systable: system table
* Return: EFI_ST_SUCCESS for success
*/
static int setup(const efi_handle_t handle,
const struct efi_system_table *systable)
{
efi_status_t ret;
handle_image = handle;
boottime = systable->boottime;
/* Load the application image into memory */
decompress(&image);
ret = boottime->install_protocol_interface
(&handle_volume, &guid_device_path, EFI_NATIVE_INTERFACE,
&dp_volume);
if (ret != EFI_SUCCESS) {
efi_st_error("Failed to install device path\n");
return EFI_ST_FAILURE;
}
ret = boottime->install_protocol_interface
(&handle_volume, &guid_simple_file_system_protocol,
EFI_NATIVE_INTERFACE, &file_system);
if (ret != EFI_SUCCESS) {
efi_st_error("Failed to install simple file system protocol\n");
return EFI_ST_FAILURE;
}
return EFI_ST_SUCCESS;
}
/*
* Tear down unit test.
*
* Uninstall protocols and free memory.
*
* Return: EFI_ST_SUCCESS for success
*/
static int teardown(void)
{
efi_status_t ret = EFI_ST_SUCCESS;
if (handle_volume) {
ret = boottime->uninstall_protocol_interface
(handle_volume, &guid_simple_file_system_protocol,
&file_system);
if (ret != EFI_SUCCESS) {
efi_st_error
("Failed to uninstall simple file system protocol\n");
return EFI_ST_FAILURE;
}
ret = boottime->uninstall_protocol_interface
(handle_volume, &guid_device_path, &dp_volume);
if (ret != EFI_SUCCESS) {
efi_st_error
("Failed to uninstall device path protocol\n");
return EFI_ST_FAILURE;
}
}
if (image) {
ret = boottime->free_pool(image);
if (ret != EFI_SUCCESS) {
efi_st_error("Failed to free image\n");
return EFI_ST_FAILURE;
}
}
return ret;
}
/*
* Execute unit test.
*
* Load and start the application image.
*
* Return: EFI_ST_SUCCESS for success
*/
static int execute(void)
{
efi_status_t ret;
efi_handle_t handle;
ret = boottime->load_image(false, handle_image, &dp_file.vendor.dp,
NULL, 0, &handle);
if (ret != EFI_SUCCESS) {
efi_st_error("Failed to load image\n");
return EFI_ST_FAILURE;
}
ret = boottime->start_image(handle, NULL, NULL);
if (ret != EFI_UNSUPPORTED) {
efi_st_error("Wrong return value from application\n");
return EFI_ST_FAILURE;
}
if (priv.file_open_count) {
efi_st_error("File open count = %d, expected 0\n",
priv.file_open_count);
return EFI_ST_FAILURE;
}
if (priv.volume_open_count) {
efi_st_error("Volume open count = %d, expected 0\n",
priv.volume_open_count);
return EFI_ST_FAILURE;
}
return EFI_ST_SUCCESS;
}
EFI_UNIT_TEST(loadimage) = {
.name = "load image from file",
.phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT,
.setup = setup,
.execute = execute,
.teardown = teardown,
};
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