mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-05 02:51:00 +00:00
e7dcf5645f
This header file is now only used by files that access internal environment features. Drop it from various places where it is not needed. Acked-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Simon Glass <sjg@chromium.org>
1121 lines
26 KiB
C
1121 lines
26 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* UEFI Shell-like command
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*
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* Copyright (c) 2018 AKASHI Takahiro, Linaro Limited
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*/
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#include <charset.h>
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#include <common.h>
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#include <command.h>
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#include <efi_loader.h>
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#include <exports.h>
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#include <hexdump.h>
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#include <malloc.h>
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#include <search.h>
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#include <linux/ctype.h>
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#define BS systab.boottime
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#define RT systab.runtime
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/**
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* efi_get_device_handle_info() - get information of UEFI device
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*
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* @handle: Handle of UEFI device
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* @dev_path_text: Pointer to text of device path
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* Return: 0 on success, -1 on failure
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*
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* Currently return a formatted text of device path.
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*/
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static int efi_get_device_handle_info(efi_handle_t handle, u16 **dev_path_text)
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{
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struct efi_device_path *dp;
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efi_status_t ret;
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ret = EFI_CALL(BS->open_protocol(handle, &efi_guid_device_path,
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(void **)&dp, NULL /* FIXME */, NULL,
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EFI_OPEN_PROTOCOL_GET_PROTOCOL));
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if (ret == EFI_SUCCESS) {
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*dev_path_text = efi_dp_str(dp);
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return 0;
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} else {
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return -1;
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}
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}
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#define EFI_HANDLE_WIDTH ((int)sizeof(efi_handle_t) * 2)
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static const char spc[] = " ";
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static const char sep[] = "================";
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/**
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* do_efi_show_devices() - show UEFI devices
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*
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* @cmdtp: Command table
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* @flag: Command flag
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* @argc: Number of arguments
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* @argv: Argument array
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* Return: CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
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*
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* Implement efidebug "devices" sub-command.
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* Show all UEFI devices and their information.
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*/
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static int do_efi_show_devices(cmd_tbl_t *cmdtp, int flag,
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int argc, char * const argv[])
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{
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efi_handle_t *handles;
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efi_uintn_t num, i;
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u16 *dev_path_text;
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efi_status_t ret;
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ret = EFI_CALL(BS->locate_handle_buffer(ALL_HANDLES, NULL, NULL,
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&num, &handles));
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if (ret != EFI_SUCCESS)
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return CMD_RET_FAILURE;
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if (!num)
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return CMD_RET_SUCCESS;
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printf("Device%.*s Device Path\n", EFI_HANDLE_WIDTH - 6, spc);
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printf("%.*s ====================\n", EFI_HANDLE_WIDTH, sep);
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for (i = 0; i < num; i++) {
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if (!efi_get_device_handle_info(handles[i], &dev_path_text)) {
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printf("%p %ls\n", handles[i], dev_path_text);
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efi_free_pool(dev_path_text);
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}
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}
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EFI_CALL(BS->free_pool(handles));
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return CMD_RET_SUCCESS;
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}
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/**
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* efi_get_driver_handle_info() - get information of UEFI driver
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*
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* @handle: Handle of UEFI device
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* @driver_name: Driver name
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* @image_path: Pointer to text of device path
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* Return: 0 on success, -1 on failure
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*
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* Currently return no useful information as all UEFI drivers are
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* built-in..
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*/
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static int efi_get_driver_handle_info(efi_handle_t handle, u16 **driver_name,
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u16 **image_path)
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{
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struct efi_handler *handler;
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struct efi_loaded_image *image;
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efi_status_t ret;
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/*
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* driver name
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* TODO: support EFI_COMPONENT_NAME2_PROTOCOL
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*/
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*driver_name = NULL;
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/* image name */
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ret = efi_search_protocol(handle, &efi_guid_loaded_image, &handler);
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if (ret != EFI_SUCCESS) {
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*image_path = NULL;
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return 0;
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}
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image = handler->protocol_interface;
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*image_path = efi_dp_str(image->file_path);
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return 0;
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}
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/**
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* do_efi_show_drivers() - show UEFI drivers
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*
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* @cmdtp: Command table
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* @flag: Command flag
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* @argc: Number of arguments
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* @argv: Argument array
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* Return: CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
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*
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* Implement efidebug "drivers" sub-command.
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* Show all UEFI drivers and their information.
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*/
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static int do_efi_show_drivers(cmd_tbl_t *cmdtp, int flag,
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int argc, char * const argv[])
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{
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efi_handle_t *handles;
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efi_uintn_t num, i;
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u16 *driver_name, *image_path_text;
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efi_status_t ret;
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ret = EFI_CALL(BS->locate_handle_buffer(
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BY_PROTOCOL, &efi_guid_driver_binding_protocol,
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NULL, &num, &handles));
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if (ret != EFI_SUCCESS)
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return CMD_RET_FAILURE;
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if (!num)
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return CMD_RET_SUCCESS;
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printf("Driver%.*s Name Image Path\n",
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EFI_HANDLE_WIDTH - 6, spc);
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printf("%.*s ==================== ====================\n",
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EFI_HANDLE_WIDTH, sep);
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for (i = 0; i < num; i++) {
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if (!efi_get_driver_handle_info(handles[i], &driver_name,
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&image_path_text)) {
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if (image_path_text)
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printf("%p %-20ls %ls\n", handles[i],
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driver_name, image_path_text);
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else
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printf("%p %-20ls <built-in>\n",
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handles[i], driver_name);
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EFI_CALL(BS->free_pool(driver_name));
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EFI_CALL(BS->free_pool(image_path_text));
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}
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}
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EFI_CALL(BS->free_pool(handles));
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return CMD_RET_SUCCESS;
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}
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static const struct {
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const char *text;
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const efi_guid_t guid;
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} guid_list[] = {
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{
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"Device Path",
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EFI_DEVICE_PATH_PROTOCOL_GUID,
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},
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{
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"Device Path To Text",
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EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID,
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},
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{
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"Device Path Utilities",
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EFI_DEVICE_PATH_UTILITIES_PROTOCOL_GUID,
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},
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{
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"Unicode Collation 2",
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EFI_UNICODE_COLLATION_PROTOCOL2_GUID,
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},
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{
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"Driver Binding",
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EFI_DRIVER_BINDING_PROTOCOL_GUID,
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},
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{
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"Simple Text Input",
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EFI_SIMPLE_TEXT_INPUT_PROTOCOL_GUID,
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},
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{
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"Simple Text Input Ex",
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EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL_GUID,
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},
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{
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"Simple Text Output",
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EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL_GUID,
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},
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{
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"Block IO",
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EFI_BLOCK_IO_PROTOCOL_GUID,
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},
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{
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"Simple File System",
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EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID,
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},
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{
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"Loaded Image",
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EFI_LOADED_IMAGE_PROTOCOL_GUID,
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},
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{
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"Graphics Output",
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EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID,
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},
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{
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"HII String",
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EFI_HII_STRING_PROTOCOL_GUID,
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},
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{
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"HII Database",
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EFI_HII_DATABASE_PROTOCOL_GUID,
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},
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{
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"HII Config Routing",
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EFI_HII_CONFIG_ROUTING_PROTOCOL_GUID,
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},
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{
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"Simple Network",
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EFI_SIMPLE_NETWORK_PROTOCOL_GUID,
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},
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{
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"PXE Base Code",
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EFI_PXE_BASE_CODE_PROTOCOL_GUID,
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},
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};
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/**
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* get_guid_text - get string of protocol guid
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* @guid: Protocol guid
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* Return: String
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*
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* Return string for display to represent the protocol.
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*/
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static const char *get_guid_text(const efi_guid_t *guid)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(guid_list); i++)
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if (!guidcmp(&guid_list[i].guid, guid))
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break;
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if (i != ARRAY_SIZE(guid_list))
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return guid_list[i].text;
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else
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return NULL;
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}
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/**
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* do_efi_show_handles() - show UEFI handles
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*
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* @cmdtp: Command table
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* @flag: Command flag
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* @argc: Number of arguments
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* @argv: Argument array
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* Return: CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
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*
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* Implement efidebug "dh" sub-command.
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* Show all UEFI handles and their information, currently all protocols
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* added to handle.
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*/
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static int do_efi_show_handles(cmd_tbl_t *cmdtp, int flag,
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int argc, char * const argv[])
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{
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efi_handle_t *handles;
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efi_guid_t **guid;
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efi_uintn_t num, count, i, j;
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const char *guid_text;
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efi_status_t ret;
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ret = EFI_CALL(BS->locate_handle_buffer(ALL_HANDLES, NULL, NULL,
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&num, &handles));
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if (ret != EFI_SUCCESS)
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return CMD_RET_FAILURE;
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if (!num)
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return CMD_RET_SUCCESS;
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printf("Handle%.*s Protocols\n", EFI_HANDLE_WIDTH - 6, spc);
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printf("%.*s ====================\n", EFI_HANDLE_WIDTH, sep);
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for (i = 0; i < num; i++) {
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printf("%p", handles[i]);
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ret = EFI_CALL(BS->protocols_per_handle(handles[i], &guid,
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&count));
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if (ret || !count) {
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putc('\n');
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continue;
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}
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for (j = 0; j < count; j++) {
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if (j)
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printf(", ");
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else
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putc(' ');
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guid_text = get_guid_text(guid[j]);
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if (guid_text)
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puts(guid_text);
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else
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printf("%pUl", guid[j]);
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}
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putc('\n');
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}
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EFI_CALL(BS->free_pool(handles));
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return CMD_RET_SUCCESS;
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}
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/**
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* do_efi_show_images() - show UEFI images
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*
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* @cmdtp: Command table
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* @flag: Command flag
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* @argc: Number of arguments
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* @argv: Argument array
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* Return: CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
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*
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* Implement efidebug "images" sub-command.
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* Show all UEFI loaded images and their information.
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*/
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static int do_efi_show_images(cmd_tbl_t *cmdtp, int flag,
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int argc, char * const argv[])
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{
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efi_print_image_infos(NULL);
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return CMD_RET_SUCCESS;
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}
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static const char * const efi_mem_type_string[] = {
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[EFI_RESERVED_MEMORY_TYPE] = "RESERVED",
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[EFI_LOADER_CODE] = "LOADER CODE",
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[EFI_LOADER_DATA] = "LOADER DATA",
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[EFI_BOOT_SERVICES_CODE] = "BOOT CODE",
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[EFI_BOOT_SERVICES_DATA] = "BOOT DATA",
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[EFI_RUNTIME_SERVICES_CODE] = "RUNTIME CODE",
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[EFI_RUNTIME_SERVICES_DATA] = "RUNTIME DATA",
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[EFI_CONVENTIONAL_MEMORY] = "CONVENTIONAL",
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[EFI_UNUSABLE_MEMORY] = "UNUSABLE MEM",
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[EFI_ACPI_RECLAIM_MEMORY] = "ACPI RECLAIM MEM",
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[EFI_ACPI_MEMORY_NVS] = "ACPI NVS",
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[EFI_MMAP_IO] = "IO",
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[EFI_MMAP_IO_PORT] = "IO PORT",
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[EFI_PAL_CODE] = "PAL",
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};
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static const struct efi_mem_attrs {
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const u64 bit;
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const char *text;
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} efi_mem_attrs[] = {
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{EFI_MEMORY_UC, "UC"},
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{EFI_MEMORY_UC, "UC"},
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{EFI_MEMORY_WC, "WC"},
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{EFI_MEMORY_WT, "WT"},
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{EFI_MEMORY_WB, "WB"},
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{EFI_MEMORY_UCE, "UCE"},
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{EFI_MEMORY_WP, "WP"},
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{EFI_MEMORY_RP, "RP"},
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{EFI_MEMORY_XP, "WP"},
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{EFI_MEMORY_NV, "NV"},
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{EFI_MEMORY_MORE_RELIABLE, "REL"},
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{EFI_MEMORY_RO, "RO"},
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{EFI_MEMORY_RUNTIME, "RT"},
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};
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/**
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* print_memory_attributes() - print memory map attributes
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*
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* @attributes: Attribute value
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*
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* Print memory map attributes
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*/
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static void print_memory_attributes(u64 attributes)
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{
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int sep, i;
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for (sep = 0, i = 0; i < ARRAY_SIZE(efi_mem_attrs); i++)
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if (attributes & efi_mem_attrs[i].bit) {
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if (sep) {
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putc('|');
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} else {
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putc(' ');
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sep = 1;
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}
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puts(efi_mem_attrs[i].text);
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}
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}
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#define EFI_PHYS_ADDR_WIDTH (int)(sizeof(efi_physical_addr_t) * 2)
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/**
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* do_efi_show_memmap() - show UEFI memory map
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*
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* @cmdtp: Command table
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* @flag: Command flag
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* @argc: Number of arguments
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* @argv: Argument array
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* Return: CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
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*
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* Implement efidebug "memmap" sub-command.
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* Show UEFI memory map.
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*/
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static int do_efi_show_memmap(cmd_tbl_t *cmdtp, int flag,
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int argc, char * const argv[])
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{
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struct efi_mem_desc *memmap = NULL, *map;
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efi_uintn_t map_size = 0;
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const char *type;
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int i;
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efi_status_t ret;
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ret = EFI_CALL(BS->get_memory_map(&map_size, memmap, NULL, NULL, NULL));
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if (ret == EFI_BUFFER_TOO_SMALL) {
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map_size += sizeof(struct efi_mem_desc); /* for my own */
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ret = EFI_CALL(BS->allocate_pool(EFI_LOADER_DATA,
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map_size, (void *)&memmap));
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if (ret != EFI_SUCCESS)
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return CMD_RET_FAILURE;
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ret = EFI_CALL(BS->get_memory_map(&map_size, memmap,
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NULL, NULL, NULL));
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}
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if (ret != EFI_SUCCESS) {
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EFI_CALL(BS->free_pool(memmap));
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return CMD_RET_FAILURE;
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}
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printf("Type Start%.*s End%.*s Attributes\n",
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EFI_PHYS_ADDR_WIDTH - 5, spc, EFI_PHYS_ADDR_WIDTH - 3, spc);
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printf("================ %.*s %.*s ==========\n",
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EFI_PHYS_ADDR_WIDTH, sep, EFI_PHYS_ADDR_WIDTH, sep);
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for (i = 0, map = memmap; i < map_size / sizeof(*map); map++, i++) {
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if (map->type < EFI_MAX_MEMORY_TYPE)
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type = efi_mem_type_string[map->type];
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else
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type = "(unknown)";
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printf("%-16s %.*llx-%.*llx", type,
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EFI_PHYS_ADDR_WIDTH,
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map->physical_start,
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EFI_PHYS_ADDR_WIDTH,
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map->physical_start + map->num_pages * EFI_PAGE_SIZE);
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print_memory_attributes(map->attribute);
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putc('\n');
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}
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EFI_CALL(BS->free_pool(memmap));
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return CMD_RET_SUCCESS;
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}
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/**
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* do_efi_boot_add() - set UEFI load option
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*
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* @cmdtp: Command table
|
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* @flag: Command flag
|
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* @argc: Number of arguments
|
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* @argv: Argument array
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* Return: CMD_RET_SUCCESS on success,
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* CMD_RET_USAGE or CMD_RET_RET_FAILURE on failure
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*
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* Implement efidebug "boot add" sub-command. Create or change UEFI load option.
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*
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* efidebug boot add <id> <label> <interface> <devnum>[:<part>] <file> <options>
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*/
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static int do_efi_boot_add(cmd_tbl_t *cmdtp, int flag,
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int argc, char * const argv[])
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{
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int id;
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char *endp;
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char var_name[9];
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u16 var_name16[9], *p;
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efi_guid_t guid;
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size_t label_len, label_len16;
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u16 *label;
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struct efi_device_path *device_path = NULL, *file_path = NULL;
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struct efi_load_option lo;
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void *data = NULL;
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efi_uintn_t size;
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efi_status_t ret;
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int r = CMD_RET_SUCCESS;
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if (argc < 6 || argc > 7)
|
|
return CMD_RET_USAGE;
|
|
|
|
id = (int)simple_strtoul(argv[1], &endp, 16);
|
|
if (*endp != '\0' || id > 0xffff)
|
|
return CMD_RET_USAGE;
|
|
|
|
sprintf(var_name, "Boot%04X", id);
|
|
p = var_name16;
|
|
utf8_utf16_strncpy(&p, var_name, 9);
|
|
|
|
guid = efi_global_variable_guid;
|
|
|
|
/* attributes */
|
|
lo.attributes = LOAD_OPTION_ACTIVE; /* always ACTIVE */
|
|
|
|
/* label */
|
|
label_len = strlen(argv[2]);
|
|
label_len16 = utf8_utf16_strnlen(argv[2], label_len);
|
|
label = malloc((label_len16 + 1) * sizeof(u16));
|
|
if (!label)
|
|
return CMD_RET_FAILURE;
|
|
lo.label = label; /* label will be changed below */
|
|
utf8_utf16_strncpy(&label, argv[2], label_len);
|
|
|
|
/* file path */
|
|
ret = efi_dp_from_name(argv[3], argv[4], argv[5], &device_path,
|
|
&file_path);
|
|
if (ret != EFI_SUCCESS) {
|
|
printf("Cannot create device path for \"%s %s\"\n",
|
|
argv[3], argv[4]);
|
|
r = CMD_RET_FAILURE;
|
|
goto out;
|
|
}
|
|
lo.file_path = file_path;
|
|
lo.file_path_length = efi_dp_size(file_path)
|
|
+ sizeof(struct efi_device_path); /* for END */
|
|
|
|
/* optional data */
|
|
if (argc < 6)
|
|
lo.optional_data = NULL;
|
|
else
|
|
lo.optional_data = (const u8 *)argv[6];
|
|
|
|
size = efi_serialize_load_option(&lo, (u8 **)&data);
|
|
if (!size) {
|
|
r = CMD_RET_FAILURE;
|
|
goto out;
|
|
}
|
|
|
|
ret = EFI_CALL(RT->set_variable(var_name16, &guid,
|
|
EFI_VARIABLE_NON_VOLATILE |
|
|
EFI_VARIABLE_BOOTSERVICE_ACCESS |
|
|
EFI_VARIABLE_RUNTIME_ACCESS,
|
|
size, data));
|
|
if (ret != EFI_SUCCESS) {
|
|
printf("Cannot set %ls\n", var_name16);
|
|
r = CMD_RET_FAILURE;
|
|
}
|
|
out:
|
|
free(data);
|
|
efi_free_pool(device_path);
|
|
efi_free_pool(file_path);
|
|
free(lo.label);
|
|
|
|
return r;
|
|
}
|
|
|
|
/**
|
|
* do_efi_boot_rm() - delete UEFI load options
|
|
*
|
|
* @cmdtp: Command table
|
|
* @flag: Command flag
|
|
* @argc: Number of arguments
|
|
* @argv: Argument array
|
|
* Return: CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
|
|
*
|
|
* Implement efidebug "boot rm" sub-command.
|
|
* Delete UEFI load options.
|
|
*
|
|
* efidebug boot rm <id> ...
|
|
*/
|
|
static int do_efi_boot_rm(cmd_tbl_t *cmdtp, int flag,
|
|
int argc, char * const argv[])
|
|
{
|
|
efi_guid_t guid;
|
|
int id, i;
|
|
char *endp;
|
|
char var_name[9];
|
|
u16 var_name16[9];
|
|
efi_status_t ret;
|
|
|
|
if (argc == 1)
|
|
return CMD_RET_USAGE;
|
|
|
|
guid = efi_global_variable_guid;
|
|
for (i = 1; i < argc; i++, argv++) {
|
|
id = (int)simple_strtoul(argv[1], &endp, 16);
|
|
if (*endp != '\0' || id > 0xffff)
|
|
return CMD_RET_FAILURE;
|
|
|
|
sprintf(var_name, "Boot%04X", id);
|
|
utf8_utf16_strncpy((u16 **)&var_name16, var_name, 9);
|
|
|
|
ret = EFI_CALL(RT->set_variable(var_name16, &guid, 0, 0, NULL));
|
|
if (ret) {
|
|
printf("Cannot remove Boot%04X", id);
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
}
|
|
|
|
return CMD_RET_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
* show_efi_boot_opt_data() - dump UEFI load option
|
|
*
|
|
* @id: load option number
|
|
* @data: value of UEFI load option variable
|
|
* @size: size of the boot option
|
|
*
|
|
* Decode the value of UEFI load option variable and print information.
|
|
*/
|
|
static void show_efi_boot_opt_data(int id, void *data, size_t size)
|
|
{
|
|
struct efi_load_option lo;
|
|
char *label, *p;
|
|
size_t label_len16, label_len;
|
|
u16 *dp_str;
|
|
|
|
efi_deserialize_load_option(&lo, data);
|
|
|
|
label_len16 = u16_strlen(lo.label);
|
|
label_len = utf16_utf8_strnlen(lo.label, label_len16);
|
|
label = malloc(label_len + 1);
|
|
if (!label)
|
|
return;
|
|
p = label;
|
|
utf16_utf8_strncpy(&p, lo.label, label_len16);
|
|
|
|
printf("Boot%04X:\n", id);
|
|
printf(" attributes: %c%c%c (0x%08x)\n",
|
|
/* ACTIVE */
|
|
lo.attributes & LOAD_OPTION_ACTIVE ? 'A' : '-',
|
|
/* FORCE RECONNECT */
|
|
lo.attributes & LOAD_OPTION_FORCE_RECONNECT ? 'R' : '-',
|
|
/* HIDDEN */
|
|
lo.attributes & LOAD_OPTION_HIDDEN ? 'H' : '-',
|
|
lo.attributes);
|
|
printf(" label: %s\n", label);
|
|
|
|
dp_str = efi_dp_str(lo.file_path);
|
|
printf(" file_path: %ls\n", dp_str);
|
|
efi_free_pool(dp_str);
|
|
|
|
printf(" data:\n");
|
|
print_hex_dump(" ", DUMP_PREFIX_OFFSET, 16, 1,
|
|
lo.optional_data, size + (u8 *)data -
|
|
(u8 *)lo.optional_data, true);
|
|
free(label);
|
|
}
|
|
|
|
/**
|
|
* show_efi_boot_opt() - dump UEFI load option
|
|
*
|
|
* @id: Load option number
|
|
*
|
|
* Dump information defined by UEFI load option.
|
|
*/
|
|
static void show_efi_boot_opt(int id)
|
|
{
|
|
char var_name[9];
|
|
u16 var_name16[9], *p;
|
|
efi_guid_t guid;
|
|
void *data = NULL;
|
|
efi_uintn_t size;
|
|
int ret;
|
|
|
|
sprintf(var_name, "Boot%04X", id);
|
|
p = var_name16;
|
|
utf8_utf16_strncpy(&p, var_name, 9);
|
|
guid = efi_global_variable_guid;
|
|
|
|
size = 0;
|
|
ret = EFI_CALL(RT->get_variable(var_name16, &guid, NULL, &size, NULL));
|
|
if (ret == (int)EFI_BUFFER_TOO_SMALL) {
|
|
data = malloc(size);
|
|
ret = EFI_CALL(RT->get_variable(var_name16, &guid, NULL, &size,
|
|
data));
|
|
}
|
|
if (ret == EFI_SUCCESS)
|
|
show_efi_boot_opt_data(id, data, size);
|
|
else if (ret == EFI_NOT_FOUND)
|
|
printf("Boot%04X: not found\n", id);
|
|
|
|
free(data);
|
|
}
|
|
|
|
static int u16_tohex(u16 c)
|
|
{
|
|
if (c >= '0' && c <= '9')
|
|
return c - '0';
|
|
if (c >= 'A' && c <= 'F')
|
|
return c - 'A' + 10;
|
|
|
|
/* not hexadecimal */
|
|
return -1;
|
|
}
|
|
|
|
/**
|
|
* show_efi_boot_dump() - dump all UEFI load options
|
|
*
|
|
* @cmdtp: Command table
|
|
* @flag: Command flag
|
|
* @argc: Number of arguments
|
|
* @argv: Argument array
|
|
* Return: CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
|
|
*
|
|
* Implement efidebug "boot dump" sub-command.
|
|
* Dump information of all UEFI load options defined.
|
|
*
|
|
* efidebug boot dump
|
|
*/
|
|
static int do_efi_boot_dump(cmd_tbl_t *cmdtp, int flag,
|
|
int argc, char * const argv[])
|
|
{
|
|
u16 *var_name16, *p;
|
|
efi_uintn_t buf_size, size;
|
|
efi_guid_t guid;
|
|
int id, i, digit;
|
|
efi_status_t ret;
|
|
|
|
if (argc > 1)
|
|
return CMD_RET_USAGE;
|
|
|
|
buf_size = 128;
|
|
var_name16 = malloc(buf_size);
|
|
if (!var_name16)
|
|
return CMD_RET_FAILURE;
|
|
|
|
var_name16[0] = 0;
|
|
for (;;) {
|
|
size = buf_size;
|
|
ret = EFI_CALL(efi_get_next_variable_name(&size, var_name16,
|
|
&guid));
|
|
if (ret == EFI_NOT_FOUND)
|
|
break;
|
|
if (ret == EFI_BUFFER_TOO_SMALL) {
|
|
buf_size = size;
|
|
p = realloc(var_name16, buf_size);
|
|
if (!p) {
|
|
free(var_name16);
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
var_name16 = p;
|
|
ret = EFI_CALL(efi_get_next_variable_name(&size,
|
|
var_name16,
|
|
&guid));
|
|
}
|
|
if (ret != EFI_SUCCESS) {
|
|
free(var_name16);
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
|
|
if (memcmp(var_name16, L"Boot", 8))
|
|
continue;
|
|
|
|
for (id = 0, i = 0; i < 4; i++) {
|
|
digit = u16_tohex(var_name16[4 + i]);
|
|
if (digit < 0)
|
|
break;
|
|
id = (id << 4) + digit;
|
|
}
|
|
if (i == 4 && !var_name16[8])
|
|
show_efi_boot_opt(id);
|
|
}
|
|
|
|
free(var_name16);
|
|
|
|
return CMD_RET_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
* show_efi_boot_order() - show order of UEFI load options
|
|
*
|
|
* Return: CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
|
|
*
|
|
* Show order of UEFI load options defined by BootOrder variable.
|
|
*/
|
|
static int show_efi_boot_order(void)
|
|
{
|
|
efi_guid_t guid;
|
|
u16 *bootorder = NULL;
|
|
efi_uintn_t size;
|
|
int num, i;
|
|
char var_name[9];
|
|
u16 var_name16[9], *p16;
|
|
void *data;
|
|
struct efi_load_option lo;
|
|
char *label, *p;
|
|
size_t label_len16, label_len;
|
|
efi_status_t ret;
|
|
|
|
guid = efi_global_variable_guid;
|
|
size = 0;
|
|
ret = EFI_CALL(RT->get_variable(L"BootOrder", &guid, NULL, &size,
|
|
NULL));
|
|
if (ret == EFI_BUFFER_TOO_SMALL) {
|
|
bootorder = malloc(size);
|
|
ret = EFI_CALL(RT->get_variable(L"BootOrder", &guid, NULL,
|
|
&size, bootorder));
|
|
}
|
|
if (ret == EFI_NOT_FOUND) {
|
|
printf("BootOrder not defined\n");
|
|
ret = CMD_RET_SUCCESS;
|
|
goto out;
|
|
} else if (ret != EFI_SUCCESS) {
|
|
ret = CMD_RET_FAILURE;
|
|
goto out;
|
|
}
|
|
|
|
num = size / sizeof(u16);
|
|
for (i = 0; i < num; i++) {
|
|
sprintf(var_name, "Boot%04X", bootorder[i]);
|
|
p16 = var_name16;
|
|
utf8_utf16_strncpy(&p16, var_name, 9);
|
|
|
|
size = 0;
|
|
ret = EFI_CALL(RT->get_variable(var_name16, &guid, NULL, &size,
|
|
NULL));
|
|
if (ret != EFI_BUFFER_TOO_SMALL) {
|
|
printf("%2d: Boot%04X: (not defined)\n",
|
|
i + 1, bootorder[i]);
|
|
continue;
|
|
}
|
|
|
|
data = malloc(size);
|
|
if (!data) {
|
|
ret = CMD_RET_FAILURE;
|
|
goto out;
|
|
}
|
|
ret = EFI_CALL(RT->get_variable(var_name16, &guid, NULL, &size,
|
|
data));
|
|
if (ret != EFI_SUCCESS) {
|
|
free(data);
|
|
ret = CMD_RET_FAILURE;
|
|
goto out;
|
|
}
|
|
|
|
efi_deserialize_load_option(&lo, data);
|
|
|
|
label_len16 = u16_strlen(lo.label);
|
|
label_len = utf16_utf8_strnlen(lo.label, label_len16);
|
|
label = malloc(label_len + 1);
|
|
if (!label) {
|
|
free(data);
|
|
ret = CMD_RET_FAILURE;
|
|
goto out;
|
|
}
|
|
p = label;
|
|
utf16_utf8_strncpy(&p, lo.label, label_len16);
|
|
printf("%2d: Boot%04X: %s\n", i + 1, bootorder[i], label);
|
|
free(label);
|
|
|
|
free(data);
|
|
}
|
|
out:
|
|
free(bootorder);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* do_efi_boot_next() - manage UEFI BootNext variable
|
|
*
|
|
* @cmdtp: Command table
|
|
* @flag: Command flag
|
|
* @argc: Number of arguments
|
|
* @argv: Argument array
|
|
* Return: CMD_RET_SUCCESS on success,
|
|
* CMD_RET_USAGE or CMD_RET_RET_FAILURE on failure
|
|
*
|
|
* Implement efidebug "boot next" sub-command.
|
|
* Set BootNext variable.
|
|
*
|
|
* efidebug boot next <id>
|
|
*/
|
|
static int do_efi_boot_next(cmd_tbl_t *cmdtp, int flag,
|
|
int argc, char * const argv[])
|
|
{
|
|
u16 bootnext;
|
|
efi_uintn_t size;
|
|
char *endp;
|
|
efi_guid_t guid;
|
|
efi_status_t ret;
|
|
int r = CMD_RET_SUCCESS;
|
|
|
|
if (argc != 2)
|
|
return CMD_RET_USAGE;
|
|
|
|
bootnext = (u16)simple_strtoul(argv[1], &endp, 16);
|
|
if (*endp != '\0' || bootnext > 0xffff) {
|
|
printf("invalid value: %s\n", argv[1]);
|
|
r = CMD_RET_FAILURE;
|
|
goto out;
|
|
}
|
|
|
|
guid = efi_global_variable_guid;
|
|
size = sizeof(u16);
|
|
ret = EFI_CALL(RT->set_variable(L"BootNext", &guid,
|
|
EFI_VARIABLE_NON_VOLATILE |
|
|
EFI_VARIABLE_BOOTSERVICE_ACCESS |
|
|
EFI_VARIABLE_RUNTIME_ACCESS,
|
|
size, &bootnext));
|
|
if (ret != EFI_SUCCESS) {
|
|
printf("Cannot set BootNext\n");
|
|
r = CMD_RET_FAILURE;
|
|
}
|
|
out:
|
|
return r;
|
|
}
|
|
|
|
/**
|
|
* do_efi_boot_order() - manage UEFI BootOrder variable
|
|
*
|
|
* @cmdtp: Command table
|
|
* @flag: Command flag
|
|
* @argc: Number of arguments
|
|
* @argv: Argument array
|
|
* Return: CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
|
|
*
|
|
* Implement efidebug "boot order" sub-command.
|
|
* Show order of UEFI load options, or change it in BootOrder variable.
|
|
*
|
|
* efidebug boot order [<id> ...]
|
|
*/
|
|
static int do_efi_boot_order(cmd_tbl_t *cmdtp, int flag,
|
|
int argc, char * const argv[])
|
|
{
|
|
u16 *bootorder = NULL;
|
|
efi_uintn_t size;
|
|
int id, i;
|
|
char *endp;
|
|
efi_guid_t guid;
|
|
efi_status_t ret;
|
|
int r = CMD_RET_SUCCESS;
|
|
|
|
if (argc == 1)
|
|
return show_efi_boot_order();
|
|
|
|
argc--;
|
|
argv++;
|
|
|
|
size = argc * sizeof(u16);
|
|
bootorder = malloc(size);
|
|
if (!bootorder)
|
|
return CMD_RET_FAILURE;
|
|
|
|
for (i = 0; i < argc; i++) {
|
|
id = (int)simple_strtoul(argv[i], &endp, 16);
|
|
if (*endp != '\0' || id > 0xffff) {
|
|
printf("invalid value: %s\n", argv[i]);
|
|
r = CMD_RET_FAILURE;
|
|
goto out;
|
|
}
|
|
|
|
bootorder[i] = (u16)id;
|
|
}
|
|
|
|
guid = efi_global_variable_guid;
|
|
ret = EFI_CALL(RT->set_variable(L"BootOrder", &guid,
|
|
EFI_VARIABLE_NON_VOLATILE |
|
|
EFI_VARIABLE_BOOTSERVICE_ACCESS |
|
|
EFI_VARIABLE_RUNTIME_ACCESS,
|
|
size, bootorder));
|
|
if (ret != EFI_SUCCESS) {
|
|
printf("Cannot set BootOrder\n");
|
|
r = CMD_RET_FAILURE;
|
|
}
|
|
out:
|
|
free(bootorder);
|
|
|
|
return r;
|
|
}
|
|
|
|
static cmd_tbl_t cmd_efidebug_boot_sub[] = {
|
|
U_BOOT_CMD_MKENT(add, CONFIG_SYS_MAXARGS, 1, do_efi_boot_add, "", ""),
|
|
U_BOOT_CMD_MKENT(rm, CONFIG_SYS_MAXARGS, 1, do_efi_boot_rm, "", ""),
|
|
U_BOOT_CMD_MKENT(dump, CONFIG_SYS_MAXARGS, 1, do_efi_boot_dump, "", ""),
|
|
U_BOOT_CMD_MKENT(next, CONFIG_SYS_MAXARGS, 1, do_efi_boot_next, "", ""),
|
|
U_BOOT_CMD_MKENT(order, CONFIG_SYS_MAXARGS, 1, do_efi_boot_order,
|
|
"", ""),
|
|
};
|
|
|
|
/**
|
|
* do_efi_boot_opt() - manage UEFI load options
|
|
*
|
|
* @cmdtp: Command table
|
|
* @flag: Command flag
|
|
* @argc: Number of arguments
|
|
* @argv: Argument array
|
|
* Return: CMD_RET_SUCCESS on success,
|
|
* CMD_RET_USAGE or CMD_RET_RET_FAILURE on failure
|
|
*
|
|
* Implement efidebug "boot" sub-command.
|
|
*/
|
|
static int do_efi_boot_opt(cmd_tbl_t *cmdtp, int flag,
|
|
int argc, char * const argv[])
|
|
{
|
|
cmd_tbl_t *cp;
|
|
|
|
if (argc < 2)
|
|
return CMD_RET_USAGE;
|
|
|
|
argc--; argv++;
|
|
|
|
cp = find_cmd_tbl(argv[0], cmd_efidebug_boot_sub,
|
|
ARRAY_SIZE(cmd_efidebug_boot_sub));
|
|
if (!cp)
|
|
return CMD_RET_USAGE;
|
|
|
|
return cp->cmd(cmdtp, flag, argc, argv);
|
|
}
|
|
|
|
static cmd_tbl_t cmd_efidebug_sub[] = {
|
|
U_BOOT_CMD_MKENT(boot, CONFIG_SYS_MAXARGS, 1, do_efi_boot_opt, "", ""),
|
|
U_BOOT_CMD_MKENT(devices, CONFIG_SYS_MAXARGS, 1, do_efi_show_devices,
|
|
"", ""),
|
|
U_BOOT_CMD_MKENT(drivers, CONFIG_SYS_MAXARGS, 1, do_efi_show_drivers,
|
|
"", ""),
|
|
U_BOOT_CMD_MKENT(dh, CONFIG_SYS_MAXARGS, 1, do_efi_show_handles,
|
|
"", ""),
|
|
U_BOOT_CMD_MKENT(images, CONFIG_SYS_MAXARGS, 1, do_efi_show_images,
|
|
"", ""),
|
|
U_BOOT_CMD_MKENT(memmap, CONFIG_SYS_MAXARGS, 1, do_efi_show_memmap,
|
|
"", ""),
|
|
};
|
|
|
|
/**
|
|
* do_efidebug() - display and configure UEFI environment
|
|
*
|
|
* @cmdtp: Command table
|
|
* @flag: Command flag
|
|
* @argc: Number of arguments
|
|
* @argv: Argument array
|
|
* Return: CMD_RET_SUCCESS on success,
|
|
* CMD_RET_USAGE or CMD_RET_RET_FAILURE on failure
|
|
*
|
|
* Implement efidebug command which allows us to display and
|
|
* configure UEFI environment.
|
|
*/
|
|
static int do_efidebug(cmd_tbl_t *cmdtp, int flag,
|
|
int argc, char * const argv[])
|
|
{
|
|
cmd_tbl_t *cp;
|
|
efi_status_t r;
|
|
|
|
if (argc < 2)
|
|
return CMD_RET_USAGE;
|
|
|
|
argc--; argv++;
|
|
|
|
/* Initialize UEFI drivers */
|
|
r = efi_init_obj_list();
|
|
if (r != EFI_SUCCESS) {
|
|
printf("Error: Cannot initialize UEFI sub-system, r = %lu\n",
|
|
r & ~EFI_ERROR_MASK);
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
|
|
cp = find_cmd_tbl(argv[0], cmd_efidebug_sub,
|
|
ARRAY_SIZE(cmd_efidebug_sub));
|
|
if (!cp)
|
|
return CMD_RET_USAGE;
|
|
|
|
return cp->cmd(cmdtp, flag, argc, argv);
|
|
}
|
|
|
|
#ifdef CONFIG_SYS_LONGHELP
|
|
static char efidebug_help_text[] =
|
|
" - UEFI Shell-like interface to configure UEFI environment\n"
|
|
"\n"
|
|
"efidebug boot add <bootid> <label> <interface> <devnum>[:<part>] <file path> [<load options>]\n"
|
|
" - set UEFI BootXXXX variable\n"
|
|
" <load options> will be passed to UEFI application\n"
|
|
"efidebug boot rm <bootid#1> [<bootid#2> [<bootid#3> [...]]]\n"
|
|
" - delete UEFI BootXXXX variables\n"
|
|
"efidebug boot dump\n"
|
|
" - dump all UEFI BootXXXX variables\n"
|
|
"efidebug boot next <bootid>\n"
|
|
" - set UEFI BootNext variable\n"
|
|
"efidebug boot order [<bootid#1> [<bootid#2> [<bootid#3> [...]]]]\n"
|
|
" - set/show UEFI boot order\n"
|
|
"\n"
|
|
"efidebug devices\n"
|
|
" - show uefi devices\n"
|
|
"efidebug drivers\n"
|
|
" - show uefi drivers\n"
|
|
"efidebug dh\n"
|
|
" - show uefi handles\n"
|
|
"efidebug images\n"
|
|
" - show loaded images\n"
|
|
"efidebug memmap\n"
|
|
" - show uefi memory map\n";
|
|
#endif
|
|
|
|
U_BOOT_CMD(
|
|
efidebug, 10, 0, do_efidebug,
|
|
"Configure UEFI environment",
|
|
efidebug_help_text
|
|
);
|