diff options
Diffstat (limited to 'cmd/eficonfig.c')
| -rw-r--r-- | cmd/eficonfig.c | 2502 |
1 files changed, 2502 insertions, 0 deletions
diff --git a/cmd/eficonfig.c b/cmd/eficonfig.c new file mode 100644 index 0000000000..2595dd9563 --- /dev/null +++ b/cmd/eficonfig.c @@ -0,0 +1,2502 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Menu-driven UEFI Variable maintenance + * + * Copyright (c) 2022 Masahisa Kojima, Linaro Limited + */ + +#include <ansi.h> +#include <common.h> +#include <charset.h> +#include <efi_loader.h> +#include <efi_load_initrd.h> +#include <efi_config.h> +#include <efi_variable.h> +#include <log.h> +#include <malloc.h> +#include <menu.h> +#include <sort.h> +#include <watchdog.h> +#include <asm/unaligned.h> +#include <linux/delay.h> + +static struct efi_simple_text_input_protocol *cin; + +#define EFICONFIG_DESCRIPTION_MAX 32 +#define EFICONFIG_OPTIONAL_DATA_MAX 64 + +/** + * struct eficonfig_filepath_info - structure to be used to store file path + * + * @name: file or directory name + * @list: list structure + */ +struct eficonfig_filepath_info { + char *name; + struct list_head list; +}; + +/** + * struct eficonfig_boot_option - structure to be used for updating UEFI boot option + * + * @file_info: user selected file info + * @initrd_info: user selected initrd file info + * @boot_index: index of the boot option + * @description: pointer to the description string + * @optional_data: pointer to the optional_data + * @edit_completed: flag indicates edit complete + */ +struct eficonfig_boot_option { + struct eficonfig_select_file_info file_info; + struct eficonfig_select_file_info initrd_info; + unsigned int boot_index; + u16 *description; + u16 *optional_data; + bool edit_completed; +}; + +/** + * struct eficonfig_volume_entry_data - structure to be used to store volume info + * + * @file_info: pointer to file info structure + * @v: pointer to the protocol interface + * @dp: pointer to the device path + */ +struct eficonfig_volume_entry_data { + struct eficonfig_select_file_info *file_info; + struct efi_simple_file_system_protocol *v; + struct efi_device_path *dp; +}; + +/** + * struct eficonfig_file_entry_data - structure to be used to store file info + * + * @file_info: pointer to file info structure + * @is_directory: flag to identify the directory or file + * @file_name: name of directory or file + */ +struct eficonfig_file_entry_data { + struct eficonfig_select_file_info *file_info; + bool is_directory; + char *file_name; +}; + +/** + * struct eficonfig_boot_selection_data - structure to be used to select the boot option entry + * + * @boot_index: index of the boot option + * @selected: pointer to store the selected index in the BootOrder variable + */ +struct eficonfig_boot_selection_data { + u16 boot_index; + int *selected; +}; + +/** + * struct eficonfig_boot_order - structure to be used to update BootOrder variable + * + * @num: index in the menu entry + * @description: pointer to the description string + * @boot_index: boot option index + * @active: flag to include the boot option into BootOrder variable + * @list: list structure + */ +struct eficonfig_boot_order { + u32 num; + u16 *description; + u32 boot_index; + bool active; + struct list_head list; +}; + +/** + * eficonfig_print_msg() - print message + * + * display the message to the user, user proceeds the screen + * with any key press. + * + * @items: pointer to the structure of each menu entry + * @count: the number of menu entry + * @menu_header: pointer to the menu header string + * Return: status code + */ +void eficonfig_print_msg(char *msg) +{ + /* Flush input */ + while (tstc()) + getchar(); + + printf(ANSI_CURSOR_HIDE + ANSI_CLEAR_CONSOLE + ANSI_CURSOR_POSITION + "%s\n\n Press any key to continue", 3, 4, msg); + + getchar(); +} + +/** + * eficonfig_print_entry() - print each menu entry + * + * @data: pointer to the data associated with each menu entry + */ +static void eficonfig_print_entry(void *data) +{ + struct eficonfig_entry *entry = data; + int reverse = (entry->efi_menu->active == entry->num); + + /* TODO: support scroll or page for many entries */ + + /* + * Move cursor to line where the entry will be drawn (entry->num) + * First 3 lines(menu header) + 1 empty line + */ + printf(ANSI_CURSOR_POSITION, entry->num + 4, 7); + + if (reverse) + puts(ANSI_COLOR_REVERSE); + + printf("%s", entry->title); + + if (reverse) + puts(ANSI_COLOR_RESET); +} + +/** + * eficonfig_display_statusline() - print status line + * + * @m: pointer to the menu structure + */ +static void eficonfig_display_statusline(struct menu *m) +{ + struct eficonfig_entry *entry; + + if (menu_default_choice(m, (void *)&entry) < 0) + return; + + printf(ANSI_CURSOR_POSITION + "\n%s\n" + ANSI_CURSOR_POSITION ANSI_CLEAR_LINE ANSI_CURSOR_POSITION + " Press UP/DOWN to move, ENTER to select, ESC/CTRL+C to quit" + ANSI_CLEAR_LINE_TO_END ANSI_CURSOR_POSITION ANSI_CLEAR_LINE, + 1, 1, entry->efi_menu->menu_header, entry->efi_menu->count + 5, 1, + entry->efi_menu->count + 6, 1, entry->efi_menu->count + 7, 1); +} + +/** + * eficonfig_choice_entry() - user key input handler + * + * @data: pointer to the efimenu structure + * Return: key string to identify the selected entry + */ +static char *eficonfig_choice_entry(void *data) +{ + int esc = 0; + struct list_head *pos, *n; + struct eficonfig_entry *entry; + enum bootmenu_key key = KEY_NONE; + struct efimenu *efi_menu = data; + + while (1) { + bootmenu_loop((struct bootmenu_data *)efi_menu, &key, &esc); + + switch (key) { + case KEY_UP: + if (efi_menu->active > 0) + --efi_menu->active; + /* no menu key selected, regenerate menu */ + return NULL; + case KEY_DOWN: + if (efi_menu->active < efi_menu->count - 1) + ++efi_menu->active; + /* no menu key selected, regenerate menu */ + return NULL; + case KEY_SELECT: + list_for_each_safe(pos, n, &efi_menu->list) { + entry = list_entry(pos, struct eficonfig_entry, list); + if (entry->num == efi_menu->active) + return entry->key; + } + break; + case KEY_QUIT: + /* Quit by choosing the last entry */ + entry = list_last_entry(&efi_menu->list, struct eficonfig_entry, list); + return entry->key; + default: + /* Pressed key is not valid, no need to regenerate the menu */ + break; + } + } +} + +/** + * eficonfig_destroy() - destroy efimenu + * + * @efi_menu: pointer to the efimenu structure + */ +void eficonfig_destroy(struct efimenu *efi_menu) +{ + struct list_head *pos, *n; + struct eficonfig_entry *entry; + + if (!efi_menu) + return; + + list_for_each_safe(pos, n, &efi_menu->list) { + entry = list_entry(pos, struct eficonfig_entry, list); + free(entry->title); + list_del(&entry->list); + free(entry); + } + free(efi_menu->menu_header); + free(efi_menu); +} + +/** + * eficonfig_process_quit() - callback function for "Quit" entry + * + * @data: pointer to the data + * Return: status code + */ +efi_status_t eficonfig_process_quit(void *data) +{ + return EFI_ABORTED; +} + +/** + * append_entry() - append menu item + * + * @efi_menu: pointer to the efimenu structure + * @title: pointer to the entry title + * @func: callback of each entry + * @data: pointer to the data to be passed to each entry callback + * Return: status code + */ +static efi_status_t append_entry(struct efimenu *efi_menu, + char *title, eficonfig_entry_func func, void *data) +{ + struct eficonfig_entry *entry; + + if (efi_menu->count >= EFICONFIG_ENTRY_NUM_MAX) + return EFI_OUT_OF_RESOURCES; + + entry = calloc(1, sizeof(struct eficonfig_entry)); + if (!entry) + return EFI_OUT_OF_RESOURCES; + + entry->title = title; + sprintf(entry->key, "%d", efi_menu->count); + entry->efi_menu = efi_menu; + entry->func = func; + entry->data = data; + entry->num = efi_menu->count++; + list_add_tail(&entry->list, &efi_menu->list); + + return EFI_SUCCESS; +} + +/** + * append_quit_entry() - append quit entry + * + * @efi_menu: pointer to the efimenu structure + * Return: status code + */ +static efi_status_t append_quit_entry(struct efimenu *efi_menu) +{ + char *title; + efi_status_t ret; + + title = strdup("Quit"); + if (!title) + return EFI_OUT_OF_RESOURCES; + + ret = append_entry(efi_menu, title, eficonfig_process_quit, NULL); + if (ret != EFI_SUCCESS) + free(title); + + return ret; +} + +/** + * eficonfig_create_fixed_menu() - create fixed entry menu structure + * + * @items: pointer to the menu entry item + * @count: the number of menu entry + * Return: pointer to the efimenu structure + */ +void *eficonfig_create_fixed_menu(const struct eficonfig_item *items, int count) +{ + u32 i; + char *title; + efi_status_t ret; + struct efimenu *efi_menu; + const struct eficonfig_item *iter = items; + + efi_menu = calloc(1, sizeof(struct efimenu)); + if (!efi_menu) + return NULL; + + INIT_LIST_HEAD(&efi_menu->list); + for (i = 0; i < count; i++, iter++) { + title = strdup(iter->title); + if (!title) + goto out; + + ret = append_entry(efi_menu, title, iter->func, iter->data); + if (ret != EFI_SUCCESS) { + free(title); + goto out; + } + } + + return efi_menu; +out: + eficonfig_destroy(efi_menu); + + return NULL; +} + +/** + * eficonfig_process_common() - main handler for UEFI menu + * + * Construct the structures required to show the menu, then handle + * the user input interacting with u-boot menu functions. + * + * @efi_menu: pointer to the efimenu structure + * @menu_header: pointer to the menu header string + * Return: status code + */ +efi_status_t eficonfig_process_common(struct efimenu *efi_menu, char *menu_header) +{ + struct menu *menu; + void *choice = NULL; + struct list_head *pos, *n; + struct eficonfig_entry *entry; + efi_status_t ret = EFI_SUCCESS; + + if (efi_menu->count > EFICONFIG_ENTRY_NUM_MAX) + return EFI_OUT_OF_RESOURCES; + + efi_menu->delay = -1; + efi_menu->active = 0; + + if (menu_header) { + efi_menu->menu_header = strdup(menu_header); + if (!efi_menu->menu_header) + return EFI_OUT_OF_RESOURCES; + } + + menu = menu_create(NULL, 0, 1, eficonfig_display_statusline, + eficonfig_print_entry, eficonfig_choice_entry, + efi_menu); + if (!menu) + return EFI_INVALID_PARAMETER; + + list_for_each_safe(pos, n, &efi_menu->list) { + entry = list_entry(pos, struct eficonfig_entry, list); + if (!menu_item_add(menu, entry->key, entry)) { + ret = EFI_INVALID_PARAMETER; + goto out; + } + } + + entry = list_first_entry_or_null(&efi_menu->list, struct eficonfig_entry, list); + if (entry) + menu_default_set(menu, entry->key); + + printf(ANSI_CURSOR_HIDE + ANSI_CLEAR_CONSOLE + ANSI_CURSOR_POSITION, 1, 1); + + if (menu_get_choice(menu, &choice)) { + entry = choice; + if (entry->func) + ret = entry->func(entry->data); + } +out: + menu_destroy(menu); + + printf(ANSI_CLEAR_CONSOLE + ANSI_CURSOR_POSITION + ANSI_CURSOR_SHOW, 1, 1); + + return ret; +} + +/** + * eficonfig_volume_selected() - handler of volume selection + * + * @data: pointer to the data of selected entry + * Return: status code + */ +static efi_status_t eficonfig_volume_selected(void *data) +{ + struct eficonfig_volume_entry_data *info = data; + + if (info) { + info->file_info->current_volume = info->v; + info->file_info->dp_volume = info->dp; + } + + return EFI_SUCCESS; +} + +/** + * create_selected_device_path() - create device path + * + * @file_info: pointer to the selected file information + * Return: + * device path or NULL. Caller must free the returned value + */ +static +struct efi_device_path *create_selected_device_path(struct eficonfig_select_file_info *file_info) +{ + char *p; + void *buf; + efi_uintn_t fp_size; + struct efi_device_path *dp; + struct efi_device_path_file_path *fp; + + fp_size = sizeof(struct efi_device_path) + + ((u16_strlen(file_info->current_path) + 1) * sizeof(u16)); + buf = calloc(1, fp_size + sizeof(END)); + if (!buf) + return NULL; + + fp = buf; + fp->dp.type = DEVICE_PATH_TYPE_MEDIA_DEVICE, + fp->dp.sub_type = DEVICE_PATH_SUB_TYPE_FILE_PATH, + fp->dp.length = (u16)fp_size; + u16_strcpy(fp->str, file_info->current_path); + + p = buf; + p += fp_size; + *((struct efi_device_path *)p) = END; + + dp = efi_dp_append(file_info->dp_volume, (struct efi_device_path *)buf); + free(buf); + + return dp; +} + +/** + * eficonfig_file_selected() - handler of file selection + * + * @data: pointer to the data of selected entry + * Return: status code + */ +static efi_status_t eficonfig_file_selected(void *data) +{ + u16 *tmp; + struct eficonfig_file_entry_data *info = data; + + if (!info) + return EFI_INVALID_PARAMETER; + + if (!strcmp(info->file_name, "..")) { + struct eficonfig_filepath_info *iter; + struct list_head *pos, *n; + int is_last; + char *filepath; + tmp = info->file_info->current_path; + + memset(info->file_info->current_path, 0, EFICONFIG_FILE_PATH_BUF_SIZE); + filepath = calloc(1, EFICONFIG_FILE_PATH_MAX); + if (!filepath) + return EFI_OUT_OF_RESOURCES; + + list_for_each_safe(pos, n, &info->file_info->filepath_list) { + iter = list_entry(pos, struct eficonfig_filepath_info, list); + + is_last = list_is_last(&iter->list, &info->file_info->filepath_list); + if (is_last) { + list_del(&iter->list); + free(iter->name); + free(iter); + break; + } + strlcat(filepath, iter->name, EFICONFIG_FILE_PATH_MAX); + } + utf8_utf16_strcpy(&tmp, filepath); + } else { + size_t new_len; + struct eficonfig_filepath_info *filepath_info; + + new_len = u16_strlen(info->file_info->current_path) + + strlen(info->file_name); + if (new_len >= EFICONFIG_FILE_PATH_MAX) { + eficonfig_print_msg("File path is too long!"); + return EFI_INVALID_PARAMETER; + } + tmp = &info->file_info->current_path[u16_strlen(info->file_info->current_path)]; + utf8_utf16_strcpy(&tmp, info->file_name); + + filepath_info = calloc(1, sizeof(struct eficonfig_filepath_info)); + if (!filepath_info) + return EFI_OUT_OF_RESOURCES; + + filepath_info->name = strdup(info->file_name); + if (!filepath_info->name) { + free(filepath_info); + return EFI_OUT_OF_RESOURCES; + } + list_add_tail(&filepath_info->list, &info->file_info->filepath_list); + + if (!info->is_directory) + info->file_info->file_selected = true; + } + + return EFI_SUCCESS; +} + +/** + * eficonfig_select_volume() - construct the volume selection menu + * + * @file_info: pointer to the file selection structure + * Return: status code + */ +static efi_status_t eficonfig_select_volume(struct eficonfig_select_file_info *file_info) +{ + u32 i; + efi_status_t ret; + efi_uintn_t count; + struct efimenu *efi_menu; + struct list_head *pos, *n; + struct efi_handler *handler; + struct eficonfig_entry *entry; + struct efi_device_path *device_path; + efi_handle_t *volume_handles = NULL; + struct efi_simple_file_system_protocol *v; + + ret = efi_locate_handle_buffer_int(BY_PROTOCOL, &efi_simple_file_system_protocol_guid, + NULL, &count, (efi_handle_t **)&volume_handles); + if (ret != EFI_SUCCESS) { + eficonfig_print_msg("No block device found!"); + return ret; + } + + efi_menu = calloc(1, sizeof(struct efimenu)); + if (!efi_menu) + return EFI_OUT_OF_RESOURCES; + + INIT_LIST_HEAD(&efi_menu->list); + for (i = 0; i < count; i++) { + char *devname; + struct efi_block_io *block_io; + struct eficonfig_volume_entry_data *info; + + if (efi_menu->count >= EFICONFIG_ENTRY_NUM_MAX - 1) + break; + + ret = efi_search_protocol(volume_handles[i], + &efi_simple_file_system_protocol_guid, &handler); + if (ret != EFI_SUCCESS) + continue; + ret = efi_protocol_open(handler, (void **)&v, efi_root, NULL, + EFI_OPEN_PROTOCOL_GET_PROTOCOL); + if (ret != EFI_SUCCESS) + continue; + + ret = efi_search_protocol(volume_handles[i], &efi_guid_device_path, &handler); + if (ret != EFI_SUCCESS) + continue; + ret = efi_protocol_open(handler, (void **)&device_path, + efi_root, NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL); + if (ret != EFI_SUCCESS) + continue; + + ret = efi_search_protocol(volume_handles[i], &efi_block_io_guid, &handler); + if (ret != EFI_SUCCESS) + continue; + ret = efi_protocol_open(handler, (void **)&block_io, + efi_root, NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL); + if (ret != EFI_SUCCESS) + continue; + + info = calloc(1, sizeof(struct eficonfig_volume_entry_data)); + if (!info) { + ret = EFI_OUT_OF_RESOURCES; + goto out; + } + + devname = calloc(1, BOOTMENU_DEVICE_NAME_MAX); + if (!devname) { + free(info); + ret = EFI_OUT_OF_RESOURCES; + goto out; + } + ret = efi_disk_get_device_name(volume_handles[i], devname, + BOOTMENU_DEVICE_NAME_MAX); + if (ret != EFI_SUCCESS) { + free(info); + goto out; + } + + info->v = v; + info->dp = device_path; + info->file_info = file_info; + ret = append_entry(efi_menu, devname, eficonfig_volume_selected, info); + if (ret != EFI_SUCCESS) { + free(info); + goto out; + } + } + + ret = append_quit_entry(efi_menu); + if (ret != EFI_SUCCESS) + goto out; + + ret = eficonfig_process_common(efi_menu, " ** Select Volume **"); +out: + efi_free_pool(volume_handles); + list_for_each_safe(pos, n, &efi_menu->list) { + entry = list_entry(pos, struct eficonfig_entry, list); + free(entry->data); + } + eficonfig_destroy(efi_menu); + + return ret; +} + +/** + * sort_file() - sort the file name in ascii order + * + * @data1: pointer to the file entry data + * @data2: pointer to the file entry data + * Return: -1 if the data1 file name is less than data2 file name, + * 0 if both file name match, + * 1 if the data1 file name is greater thant data2 file name. + */ +static int sort_file(const void *arg1, const void *arg2) +{ + const struct eficonfig_file_entry_data *data1, *data2; + + data1 = *((const struct eficonfig_file_entry_data **)arg1); + data2 = *((const struct eficonfig_file_entry_data **)arg2); + + return strcasecmp(data1->file_name, data2->file_name); +} + +/** + * eficonfig_create_file_entry() - construct the file menu entry + * + * @efi_menu: pointer to the efimenu structure + * @count: number of the directory and file + * @tmp_infos: pointer to the entry data array + * @f: pointer to the file handle + * @buf: pointer to the buffer to store the directory information + * @file_info: pointer to the file selection structure + * Return: status code + */ +static efi_status_t +eficonfig_create_file_entry(struct efimenu *efi_menu, u32 count, + struct eficonfig_file_entry_data **tmp_infos, + struct efi_file_handle *f, struct efi_file_info *buf, + struct eficonfig_select_file_info *file_info) +{ + char *name, *p; + efi_uintn_t len; + efi_status_t ret; + u32 i, entry_num = 0; + struct eficonfig_file_entry_data *info; + + efi_file_setpos_int(f, 0); + /* Read directory and construct menu structure */ + for (i = 0; i < count; i++) { + if (entry_num >= EFICONFIG_ENTRY_NUM_MAX - 1) + break; + + len = sizeof(struct efi_file_info) + EFICONFIG_FILE_PATH_BUF_SIZE; + ret = efi_file_read_int(f, &len, buf); + if (ret != EFI_SUCCESS || len == 0) + break; + + info = calloc(1, sizeof(struct eficonfig_file_entry_data)); + if (!info) { + ret = EFI_OUT_OF_RESOURCES; + goto out; + } + + /* append '\\' at the end of directory name */ + name = calloc(1, utf16_utf8_strlen(buf->file_name) + 2); + if (!name) { + ret = EFI_OUT_OF_RESOURCES; + free(info); + goto out; + } + p = name; + utf16_utf8_strcpy(&p, buf->file_name); + if (buf->attribute & EFI_FILE_DIRECTORY) { + /* filter out u'.' */ + if (!u16_strcmp(buf->file_name, u".")) { + free(info); + free(name); + continue; + } + name[u16_strlen(buf->file_name)] = '\\'; + info->is_directory = true; + } + + info->file_name = name; + info->file_info = file_info; + tmp_infos[entry_num++] = info; + } + + qsort(tmp_infos, entry_num, sizeof(*tmp_infos), + (int (*)(const void *, const void *))sort_file); + + for (i = 0; i < entry_num; i++) { + ret = append_entry(efi_menu, tmp_infos[i]->file_name, + eficonfig_file_selected, tmp_infos[i]); + if (ret != EFI_SUCCESS) + goto out; + } + +out: + return ret; +} + +/** + * eficonfig_select_file() - construct the file selection menu + * + * @file_info: pointer to the file selection structure + * @root: pointer to the file handle + * Return: status code + */ +static efi_status_t eficonfig_select_file(struct eficonfig_select_file_info *file_info, + struct efi_file_handle *root) +{ + u32 count = 0, i; + efi_uintn_t len; + efi_status_t ret; + struct efimenu *efi_menu; + struct efi_file_handle *f; + struct efi_file_info *buf; + struct eficonfig_file_entry_data **tmp_infos; + + buf = calloc(1, sizeof(struct efi_file_info) + EFICONFIG_FILE_PATH_BUF_SIZE); + if (!buf) + return EFI_OUT_OF_RESOURCES; + + while (!file_info->file_selected) { + efi_menu = calloc(1, sizeof(struct efimenu)); + if (!efi_menu) { + ret = EFI_OUT_OF_RESOURCES; + goto out; + } + INIT_LIST_HEAD(&efi_menu->list); + + ret = efi_file_open_int(root, &f, file_info->current_path, EFI_FILE_MODE_READ, 0); + if (ret != EFI_SUCCESS) { + eficonfig_print_msg("Reading volume failed!"); + free(efi_menu); + ret = EFI_ABORTED; + goto out; + } + + /* Count the number of directory entries */ + for (;;) { + len = sizeof(struct efi_file_info) + EFICONFIG_FILE_PATH_BUF_SIZE; + ret = efi_file_read_int(f, &len, buf); + if (ret != EFI_SUCCESS || len == 0) + break; + + count++; + } + + /* allocate array to sort the entry */ + tmp_infos = calloc(count, sizeof(*tmp_infos)); + if (!tmp_infos) { + ret = EFI_OUT_OF_RESOURCES; + goto err; + } + + ret = eficonfig_create_file_entry(efi_menu, count, tmp_infos, + f, buf, file_info); + if (ret != EFI_SUCCESS) + goto err; + + ret = append_quit_entry(efi_menu); + if (ret != EFI_SUCCESS) + goto err; + + ret = eficonfig_process_common(efi_menu, " ** Select File **"); +err: + efi_file_close_int(f); + eficonfig_destroy(efi_menu); + + if (tmp_infos) { + for (i = 0; i < count; i++) + free(tmp_infos[i]); + } + + free(tmp_infos); + + if (ret != EFI_SUCCESS) + break; + } + +out: + free(buf); + + return ret; +} + +/** + * handle_user_input() - handle user input + * + * @buf: pointer to the buffer + * @buf_size: size of the buffer + * @cursor_col: cursor column for user input + * @msg: pointer to the string to display + * Return: status code + */ +static efi_status_t handle_user_input(u16 *buf, int buf_size, + int cursor_col, char *msg) +{ + u16 *tmp; + efi_status_t ret; + + printf(ANSI_CLEAR_CONSOLE + ANSI_CURSOR_POSITION + "%s" + ANSI_CURSOR_POSITION + " Press ENTER to complete, ESC/CTRL+C to quit", + 0, 1, msg, 8, 1); + + /* tmp is used to accept user cancel */ + tmp = calloc(1, buf_size * sizeof(u16)); + if (!tmp) + return EFI_OUT_OF_RESOURCES; + + ret = efi_console_get_u16_string(cin, tmp, buf_size, NULL, 4, cursor_col); + if (ret == EFI_SUCCESS) + u16_strcpy(buf, tmp); + + free(tmp); + + /* to stay the parent menu */ + ret = (ret == EFI_ABORTED) ? EFI_NOT_READY : ret; + + return ret; +} + +/** + * eficonfig_boot_add_enter_description() - handle user input for description + * + * @data: pointer to the internal boot option structure + * Return: status code + */ +static efi_status_t eficonfig_boot_add_enter_description(void *data) +{ + struct eficonfig_boot_option *bo = data; + + return handle_user_input(bo->description, EFICONFIG_DESCRIPTION_MAX, 22, + "\n ** Edit Description **\n" + "\n" + " enter description: "); +} + +/** + * eficonfig_boot_add_optional_data() - handle user input for optional data + * + * @data: pointer to the internal boot option structure + * Return: status code + */ +static efi_status_t eficonfig_boot_add_optional_data(void *data) +{ + struct eficonfig_boot_option *bo = data; + + return handle_user_input(bo->optional_data, EFICONFIG_OPTIONAL_DATA_MAX, 24, + "\n ** Edit Optional Data **\n" + "\n" + " enter optional data:"); +} + +/** + * eficonfig_boot_edit_save() - handler to save the boot option + * + * @data: pointer to the internal boot option structure + * Return: status code + */ +static efi_status_t eficonfig_boot_edit_save(void *data) +{ + struct eficonfig_boot_option *bo = data; + + if (u16_strlen(bo->description) == 0) { + eficonfig_print_msg("Boot Description is empty!"); + bo->edit_completed = false; + return EFI_NOT_READY; + } + if (u16_strlen(bo->file_info.current_path) == 0) { + eficonfig_print_msg("File is not selected!"); + bo->edit_completed = false; + return EFI_NOT_READY; + } + + bo->edit_completed = true; + + return EFI_SUCCESS; +} + +/** + * eficonfig_process_select_file() - callback function for "Select File" entry + * + * @data: pointer to the data + * Return: status code + */ +efi_status_t eficonfig_process_select_file(void *data) +{ + return EFI_SUCCESS; +} + +/** + * eficonfig_process_clear_file_selection() - callback function for "Clear" entry + * + * @data: pointer to the data + * Return: status code + */ +efi_status_t eficonfig_process_clear_file_selection(void *data) +{ + struct eficonfig_select_file_info *file_info = data; + + /* clear the existing file information */ + file_info->current_volume = NULL; + file_info->current_path[0] = u'\0'; + file_info->dp_volume = NULL; + + return EFI_ABORTED; +} + +static struct eficonfig_item select_file_menu_items[] = { + {"Select File", eficonfig_process_select_file}, + {"Clear", eficonfig_process_clear_file_selection}, + {"Quit", eficonfig_process_quit}, +}; + + +/** + * eficonfig_display_select_file_option() - display select file option + * + * @file_info: pointer to the file information structure + * Return: status code + */ +efi_status_t eficonfig_display_select_file_option(struct eficonfig_select_file_info *file_info) +{ + efi_status_t ret; + struct efimenu *efi_menu; + + select_file_menu_items[1].data = file_info; + efi_menu = eficonfig_create_fixed_menu(select_file_menu_items, + ARRAY_SIZE(select_file_menu_items)); + if (!efi_menu) + return EFI_OUT_OF_RESOURCES; + + ret = eficonfig_process_common(efi_menu, " ** Update File **"); + if (ret != EFI_SUCCESS) /* User selects "Clear" or "Quit" */ + ret = EFI_NOT_READY; + + eficonfig_destroy(efi_menu); + + return ret; +} + +/** + * eficonfig_select_file_handler() - handle user file selection + * + * @data: pointer to the data + * Return: status code + */ +efi_status_t eficonfig_select_file_handler(void *data) +{ + size_t len; + efi_status_t ret; + struct list_head *pos, *n; + struct efi_file_handle *root; + struct eficonfig_filepath_info *item; + struct eficonfig_select_file_info *tmp = NULL; + struct eficonfig_select_file_info *file_info = data; + + ret = eficonfig_display_select_file_option(file_info); + if (ret != EFI_SUCCESS) + return ret; + + tmp = calloc(1, sizeof(struct eficonfig_select_file_info)); + if (!tmp) + return EFI_OUT_OF_RESOURCES; + + tmp->current_path = calloc(1, EFICONFIG_FILE_PATH_BUF_SIZE); + if (!tmp->current_path) { + free(tmp); + return EFI_OUT_OF_RESOURCES; + } + INIT_LIST_HEAD(&tmp->filepath_list); + + while (!tmp->file_selected) { + tmp->current_volume = NULL; + memset(tmp->current_path, 0, EFICONFIG_FILE_PATH_BUF_SIZE); + + ret = eficonfig_select_volume(tmp); + if (ret != EFI_SUCCESS) + goto out; + + if (!tmp->current_volume) + return EFI_INVALID_PARAMETER; + + ret = efi_open_volume_int(tmp->current_volume, &root); + if (ret != EFI_SUCCESS) + goto out; + + ret = eficonfig_select_file(tmp, root); + if (ret == EFI_ABORTED) + continue; + if (ret != EFI_SUCCESS) + goto out; + } + +out: + if (ret == EFI_SUCCESS) { + len = u16_strlen(tmp->current_path); + len = (len >= EFICONFIG_FILE_PATH_MAX) ? (EFICONFIG_FILE_PATH_MAX - 1) : len; + memcpy(file_info->current_path, tmp->current_path, len * sizeof(u16)); + file_info->current_path[len] = u'\0'; + file_info->current_volume = tmp->current_volume; + file_info->dp_volume = tmp->dp_volume; + } + + list_for_each_safe(pos, n, &tmp->filepath_list) { + item = list_entry(pos, struct eficonfig_filepath_info, list); + list_del(&item->list); + free(item->name); + free(item); + } + free(tmp->current_path); + free(tmp); + + /* to stay the parent menu */ + ret = (ret == EFI_ABORTED) ? EFI_NOT_READY : ret; + + return ret; +} + +/** + * eficonfig_get_unused_bootoption() - get unused "Boot####" index + * + * @buf: pointer to the buffer to store boot option variable name + * @buf_size: buffer size + * @index: pointer to store the index in the BootOrder variable + * Return: status code + */ +efi_status_t eficonfig_get_unused_bootoption(u16 *buf, efi_uintn_t buf_size, + unsigned int *index) +{ + u32 i; + efi_status_t ret; + efi_uintn_t size; + + if (buf_size < u16_strsize(u"Boot####")) + return EFI_BUFFER_TOO_SMALL; + + for (i = 0; i <= 0xFFFF; i++) { + size = 0; + efi_create_indexed_name(buf, buf_size, "Boot", i); + ret = efi_get_variable_int(buf, &efi_global_variable_guid, + NULL, &size, NULL, NULL); + if (ret == EFI_BUFFER_TOO_SMALL) + continue; + else + break; + } + + if (i > 0xFFFF) + return EFI_OUT_OF_RESOURCES; + + *index = i; + + return EFI_SUCCESS; +} + +/** + * eficonfig_set_boot_option() - set boot option + * + * @varname: pointer to variable name + * @dp: pointer to device path + * @label: pointer to label string + * @optional_data: pointer to optional data + * Return: status code + */ +static efi_status_t eficonfig_set_boot_option(u16 *varname, struct efi_device_path *dp, + efi_uintn_t dp_size, u16 *label, char *optional_data) +{ + void *p = NULL; + efi_status_t ret; + efi_uintn_t size; + struct efi_load_option lo; + + lo.file_path = dp; + lo.file_path_length = dp_size; + lo.attributes = LOAD_OPTION_ACTIVE; + lo.optional_data = optional_data; + lo.label = label; + + size = efi_serialize_load_option(&lo, (u8 **)&p); + if (!size) + return EFI_INVALID_PARAMETER; + + ret = efi_set_variable_int(varname, &efi_global_variable_guid, + EFI_VARIABLE_NON_VOLATILE | + EFI_VARIABLE_BOOTSERVICE_ACCESS | + EFI_VARIABLE_RUNTIME_ACCESS, + size, p, false); + free(p); + + return ret; +} + +/** + * eficonfig_append_bootorder() - append new boot option in BootOrder variable + * + * @index: "Boot####" index to append to BootOrder variable + * Return: status code + */ +efi_status_t eficonfig_append_bootorder(u16 index) +{ + u16 *bootorder; + efi_status_t ret; + u16 *new_bootorder = NULL; + efi_uintn_t last, size, new_size; + + /* append new boot option */ + bootorder = efi_get_var(u"BootOrder", &efi_global_variable_guid, &size); + last = size / sizeof(u16); + new_size = size + sizeof(u16); + new_bootorder = calloc(1, new_size); + if (!new_bootorder) { + ret = EFI_OUT_OF_RESOURCES; + goto out; + } + memcpy(new_bootorder, bootorder, size); + new_bootorder[last] = index; + + ret = efi_set_variable_int(u"BootOrder", &efi_global_variable_guid, + EFI_VARIABLE_NON_VOLATILE | + EFI_VARIABLE_BOOTSERVICE_ACCESS | + EFI_VARIABLE_RUNTIME_ACCESS, + new_size, new_bootorder, false); + if (ret != EFI_SUCCESS) + goto out; + +out: + free(bootorder); + free(new_bootorder); + + return ret; +} + +/** + * create_boot_option_entry() - create boot option entry + * + * @efi_menu: pointer to the efimenu structure + * @title: pointer to the entry title + * @val: pointer to boot option label + * @func: callback of each entry + * @data: pointer to the data to be passed to each entry callback + * Return: status code + */ +static efi_status_t create_boot_option_entry(struct efimenu *efi_menu, char *title, u16 *val, + eficonfig_entry_func func, void *data) +{ + u32 len; + char *p, *buf; + + len = strlen(title) + 1; + if (val) + len += utf16_utf8_strlen(val); + buf = calloc(1, len); + if (!buf) + return EFI_OUT_OF_RESOURCES; + + strcpy(buf, title); + if (val) { + p = buf + strlen(title); + utf16_utf8_strcpy(&p, val); + } + + return append_entry(efi_menu, buf, func, data); +} + +/** + * prepare_file_selection_entry() - prepare file selection entry + * + * @efi_menu: pointer to the efimenu structure + * @title: pointer to the title string + * @file_info: pointer to the file info + * Return: status code + */ +static efi_status_t prepare_file_selection_entry(struct efimenu *efi_menu, char *title, + struct eficonfig_select_file_info *file_info) +{ + u32 len; + efi_status_t ret; + u16 *file_name = NULL, *p; + efi_handle_t handle; + char *devname; + + devname = calloc(1, EFICONFIG_VOLUME_PATH_MAX + 1); + if (!devname) + return EFI_OUT_OF_RESOURCES; + + /* get the device name only when the user already selected the file path */ + handle = efi_dp_find_obj(file_info->dp_volume, NULL, NULL); + if (handle) { + ret = efi_disk_get_device_name(handle, devname, EFICONFIG_VOLUME_PATH_MAX); + if (ret != EFI_SUCCESS) + goto out; + } + + /* + * If the preconfigured volume does not exist in the system, display the text + * converted volume device path instead of U-Boot friendly name(e.g. "usb 0:1"). + */ + if (!handle && file_info->dp_volume) { + u16 *dp_str; + char *q = devname; + + dp_str = efi_dp_str(file_info->dp_volume); + if (dp_str) + utf16_utf8_strncpy(&q, dp_str, EFICONFIG_VOLUME_PATH_MAX); + + efi_free_pool(dp_str); + } + + /* append u'/' to devname, it is just for display purpose. */ + if (file_info->current_path[0] != u'\0' && file_info->current_path[0] != u'/') + strlcat(devname, "/", EFICONFIG_VOLUME_PATH_MAX + 1); + + len = strlen(devname); + len += utf16_utf8_strlen(file_info->current_path) + 1; + file_name = calloc(1, len * sizeof(u16)); + if (!file_name) { + ret = EFI_OUT_OF_RESOURCES; + goto out; + } + + p = file_name; + utf8_utf16_strcpy(&p, devname); + u16_strlcat(file_name, file_info->current_path, len); + ret = create_boot_option_entry(efi_menu, title, file_name, + eficonfig_select_file_handler, file_info); +out: + free(devname); + free(file_name); + + return ret; +} + +/** + * eficonfig_show_boot_option() - prepare menu entry for editing boot option + * + * Construct the structures to create edit boot option menu + * + * @bo: pointer to the boot option + * @header_str: pointer to the header string + * Return: status code + */ +static efi_status_t eficonfig_show_boot_option(struct eficonfig_boot_option *bo, + char *header_str) +{ + efi_status_t ret; + struct efimenu *efi_menu; + + efi_menu = calloc(1, sizeof(struct efimenu)); + if (!efi_menu) + return EFI_OUT_OF_RESOURCES; + + INIT_LIST_HEAD(&efi_menu->list); + + ret = create_boot_option_entry(efi_menu, "Description: ", bo->description, + eficonfig_boot_add_enter_description, bo); + if (ret != EFI_SUCCESS) + goto out; + + ret = prepare_file_selection_entry(efi_menu, "File: ", &bo->file_info); + if (ret != EFI_SUCCESS) + goto out; + + ret = prepare_file_selection_entry(efi_menu, "Initrd File: ", &bo->initrd_info); + if (ret != EFI_SUCCESS) + goto out; + + ret = create_boot_option_entry(efi_menu, "Optional Data: ", bo->optional_data, + eficonfig_boot_add_optional_data, bo); + if (ret != EFI_SUCCESS) + goto out; + + ret = create_boot_option_entry(efi_menu, "Save", NULL, + eficonfig_boot_edit_save, bo); + if (ret != EFI_SUCCESS) + goto out; + + ret = create_boot_option_entry(efi_menu, "Quit", NULL, + eficonfig_process_quit, NULL); + if (ret != EFI_SUCCESS) + goto out; + + ret = eficonfig_process_common(efi_menu, header_str); +out: + eficonfig_destroy(efi_menu); + + return ret; +} + +/** + * fill_file_info() - fill the file info from efi_device_path structure + * + * @dp: pointer to the device path + * @file_info: pointer to the file info structure + * @device_dp: pointer to the volume device path + */ +static void fill_file_info(struct efi_device_path *dp, + struct eficonfig_select_file_info *file_info, + struct efi_device_path *device_dp) +{ + u16 *file_str, *p; + struct efi_device_path *file_dp = NULL; + + efi_dp_split_file_path(dp, &device_dp, &file_dp); + file_info->dp_volume = device_dp; + + if (file_dp) { + file_str = efi_dp_str(file_dp); + /* + * efi_convert_device_path_to_text() automatically adds u'/' at the + * beginning of file name, remove u'/' before copying to current_path + */ + p = file_str; + if (p[0] == u'/') + p++; + + u16_strcpy(file_info->current_path, p); + efi_free_pool(file_dp); + efi_free_pool(file_str); + } +} + +/** + * eficonfig_edit_boot_option() - prepare boot option structure for editing + * + * Construct the boot option structure and copy the existing value + * + * @varname: pointer to the UEFI variable name + * @bo: pointer to the boot option + * @load_option: pointer to the load option + * @load_option_size: size of the load option + * @header_str: pointer to the header string + * Return : status code + */ +static efi_status_t eficonfig_edit_boot_option(u16 *varname, struct eficonfig_boot_option *bo, + void *load_option, efi_uintn_t load_option_size, + char *header_str) +{ + size_t len; + efi_status_t ret; + char *tmp = NULL, *p; + struct efi_load_option lo = {0}; + efi_uintn_t final_dp_size; + struct efi_device_path *dp = NULL; + efi_uintn_t size = load_option_size; + struct efi_device_path *final_dp = NULL; + struct efi_device_path *device_dp = NULL; + struct efi_device_path *initrd_dp = NULL; + struct efi_device_path *initrd_device_dp = NULL; + + const struct efi_initrd_dp id_dp = { + .vendor = { + { + DEVICE_PATH_TYPE_MEDIA_DEVICE, + DEVICE_PATH_SUB_TYPE_VENDOR_PATH, + sizeof(id_dp.vendor), + }, + EFI_INITRD_MEDIA_GUID, + }, + .end = { + DEVICE_PATH_TYPE_END, + DEVICE_PATH_SUB_TYPE_END, + sizeof(id_dp.end), + } + }; + + bo->file_info.current_path = calloc(1, EFICONFIG_FILE_PATH_BUF_SIZE); + if (!bo->file_info.current_path) { + ret = EFI_OUT_OF_RESOURCES; + goto out; + } + + bo->initrd_info.current_path = calloc(1, EFICONFIG_FILE_PATH_BUF_SIZE); + if (!bo->file_info.current_path) { + ret = EFI_OUT_OF_RESOURCES; + goto out; + } + + bo->description = calloc(1, EFICONFIG_DESCRIPTION_MAX * sizeof(u16)); + if (!bo->description) { + ret = EFI_OUT_OF_RESOURCES; + goto out; + } + + bo->optional_data = calloc(1, EFICONFIG_OPTIONAL_DATA_MAX * sizeof(u16)); + if (!bo->optional_data) { + ret = EFI_OUT_OF_RESOURCES; + goto out; + } + + /* copy the preset value */ + if (load_option) { + ret = efi_deserialize_load_option(&lo, load_option, &size); + if (ret != EFI_SUCCESS) + goto out; + + if (!lo.label) { + ret = EFI_INVALID_PARAMETER; + goto out; + } + /* truncate the long label string */ + if (u16_strlen(lo.label) >= EFICONFIG_DESCRIPTION_MAX) + lo.label[EFICONFIG_DESCRIPTION_MAX - 1] = u'\0'; + + u16_strcpy(bo->description, lo.label); + + /* EFI image file path is a first instance */ + if (lo.file_path) + fill_file_info(lo.file_path, &bo->file_info, device_dp); + + /* Initrd file path(optional) is placed at second instance. */ + initrd_dp = efi_dp_from_lo(&lo, &efi_lf2_initrd_guid); + if (initrd_dp) { + fill_file_info(initrd_dp, &bo->initrd_info, initrd_device_dp); + efi_free_pool(initrd_dp); + } + + if (size > 0) + memcpy(bo->optional_data, lo.optional_data, size); + } + + while (1) { + ret = eficonfig_show_boot_option(bo, header_str); + if (ret == EFI_SUCCESS && bo->edit_completed) + break; + if (ret == EFI_NOT_READY) + continue; + if (ret != EFI_SUCCESS) + goto out; + } + + if (bo->initrd_info.dp_volume) { + dp = create_selected_device_path(&bo->initrd_info); + if (!dp) { + ret = EFI_OUT_OF_RESOURCES; + goto out; + } + initrd_dp = efi_dp_append((const struct efi_device_path *)&id_dp, dp); + efi_free_pool(dp); + } + + dp = create_selected_device_path(&bo->file_info); + if (!dp) { + ret = EFI_OUT_OF_RESOURCES; + goto out; + } + final_dp_size = efi_dp_size(dp) + sizeof(END); + if (initrd_dp) { + final_dp = efi_dp_concat(dp, initrd_dp); + final_dp_size += efi_dp_size(initrd_dp) + sizeof(END); + } else { + final_dp = efi_dp_dup(dp); + } + efi_free_pool(dp); + + if (!final_dp) + goto out; + + if (utf16_utf8_strlen(bo->optional_data)) { + len = utf16_utf8_strlen(bo->optional_data) + 1; + tmp = calloc(1, len); + if (!tmp) + goto out; + p = tmp; + utf16_utf8_strncpy(&p, bo->optional_data, u16_strlen(bo->optional_data)); + } + + ret = eficonfig_set_boot_option(varname, final_dp, final_dp_size, bo->description, tmp); + if (ret != EFI_SUCCESS) + goto out; +out: + free(tmp); + free(bo->optional_data); + free(bo->description); + free(bo->file_info.current_path); + free(bo->initrd_info.current_path); + efi_free_pool(device_dp); + efi_free_pool(initrd_device_dp); + efi_free_pool(initrd_dp); + efi_free_pool(final_dp); + + return ret; +} + +/** + * eficonfig_process_add_boot_option() - handler to add boot option + * + * @data: pointer to the data for each entry + * Return: status code + */ +static efi_status_t eficonfig_process_add_boot_option(void *data) +{ + u16 varname[9]; + efi_status_t ret; + struct eficonfig_boot_option *bo = NULL; + + bo = calloc(1, sizeof(struct eficonfig_boot_option)); + if (!bo) + return EFI_OUT_OF_RESOURCES; + + ret = eficonfig_get_unused_bootoption(varname, sizeof(varname), &bo->boot_index); + if (ret != EFI_SUCCESS) + return ret; + + ret = eficonfig_edit_boot_option(varname, bo, NULL, 0, " ** Add Boot Option ** "); + if (ret != EFI_SUCCESS) + goto out; + + ret = eficonfig_append_bootorder((u16)bo->boot_index); + if (ret != EFI_SUCCESS) + goto out; + +out: + free(bo); + + /* to stay the parent menu */ + ret = (ret == EFI_ABORTED) ? EFI_SUCCESS : ret; + + return ret; +} + +/** + * eficonfig_process_boot_selected() - handler to select boot option entry + * + * @data: pointer to the data for each entry + * Return: status code + */ +static efi_status_t eficonfig_process_boot_selected(void *data) +{ + struct eficonfig_boot_selection_data *info = data; + + if (info) + *info->selected = info->boot_index; + + return EFI_SUCCESS; +} + +/** + * search_bootorder() - search the boot option index in BootOrder + * + * @bootorder: pointer to the BootOrder variable + * @num: number of BootOrder entry + * @target: target boot option index to search + * @index: pointer to store the index of BootOrder variable + * Return: true if exists, false otherwise + */ +static bool search_bootorder(u16 *bootorder, efi_uintn_t num, u32 target, u32 *index) +{ + u32 i; + + for (i = 0; i < num; i++) { + if (target == bootorder[i]) { + if (index) + *index = i; + + return true; + } + } + + return false; +} + +/** + * eficonfig_add_boot_selection_entry() - add boot option menu entry + * + * @efi_menu: pointer to store the efimenu structure + * @boot_index: boot option index to be added + * @selected: pointer to store the selected boot option index + * Return: status code + */ +static efi_status_t eficonfig_add_boot_selection_entry(struct efimenu *efi_menu, + unsigned int boot_index, + unsigned int *selected) +{ + char *buf, *p; + efi_status_t ret; + efi_uintn_t size; + void *load_option; + struct efi_load_option lo; + u16 varname[] = u"Boot####"; + struct eficonfig_boot_selection_data *info; + + efi_create_indexed_name(varname, sizeof(varname), "Boot", boot_index); + load_option = efi_get_var(varname, &efi_global_variable_guid, &size); + if (!load_option) + return EFI_SUCCESS; + + ret = efi_deserialize_load_option(&lo, load_option, &size); + if (ret != EFI_SUCCESS) { + log_warning("Invalid load option for %ls\n", varname); + free(load_option); + return ret; + } + + if (size >= sizeof(efi_guid_t) && + !guidcmp(lo.optional_data, &efi_guid_bootmenu_auto_generated)) { + /* + * auto generated entry has GUID in optional_data, + * skip auto generated entry because it will be generated + * again even if it is edited or deleted. + */ + free(load_option); + return EFI_SUCCESS; + } + + info = calloc(1, sizeof(struct eficonfig_boot_selection_data)); + if (!info) { + free(load_option); + return EFI_OUT_OF_RESOURCES; + } + + buf = calloc(1, utf16_utf8_strlen(lo.label) + 1); + if (!buf) { + free(load_option); + free(info); + return EFI_OUT_OF_RESOURCES; + } + p = buf; + utf16_utf8_strcpy(&p, lo.label); + info->boot_index = boot_index; + info->selected = selected; + ret = append_entry(efi_menu, buf, eficonfig_process_boot_selected, info); + if (ret != EFI_SUCCESS) { + free(load_option); + free(info); + return ret; + } + free(load_option); + + return EFI_SUCCESS; +} + +/** + * eficonfig_show_boot_selection() - construct boot option menu entry + * + * @selected: pointer to store the selected boot option index + * Return: status code + */ +static efi_status_t eficonfig_show_boot_selection(unsigned int *selected) +{ + u32 i; + u16 *bootorder; + efi_status_t ret; + efi_uintn_t num, size; + struct efimenu *efi_menu; + struct list_head *pos, *n; + struct eficonfig_entry *entry; + + efi_menu = calloc(1, sizeof(struct efimenu)); + if (!efi_menu) + return EFI_OUT_OF_RESOURCES; + + bootorder = efi_get_var(u"BootOrder", &efi_global_variable_guid, &size); + + INIT_LIST_HEAD(&efi_menu->list); + num = size / sizeof(u16); + /* list the load option in the order of BootOrder variable */ + for (i = 0; i < num; i++) { + ret = eficonfig_add_boot_selection_entry(efi_menu, bootorder[i], selected); + if (ret != EFI_SUCCESS) + goto out; + + if (efi_menu->count >= EFICONFIG_ENTRY_NUM_MAX - 1) + break; + } + + /* list the remaining load option not included in the BootOrder */ + for (i = 0; i <= 0xFFFF; i++) { + /* If the index is included in the BootOrder, skip it */ + if (search_bootorder(bootorder, num, i, NULL)) + continue; + + ret = eficonfig_add_boot_selection_entry(efi_menu, i, selected); + if (ret != EFI_SUCCESS) + goto out; + + if (efi_menu->count >= EFICONFIG_ENTRY_NUM_MAX - 1) + break; + } + + ret = append_quit_entry(efi_menu); + if (ret != EFI_SUCCESS) + goto out; + + ret = eficonfig_process_common(efi_menu, " ** Select Boot Option **"); +out: + list_for_each_safe(pos, n, &efi_menu->list) { + entry = list_entry(pos, struct eficonfig_entry, list); + free(entry->data); + } + eficonfig_destroy(efi_menu); + + return ret; +} + +/** + * eficonfig_process_edit_boot_option() - handler to edit boot option + * + * @data: pointer to the data for each entry + * Return: status code + */ +static efi_status_t eficonfig_process_edit_boot_option(void *data) +{ + efi_status_t ret; + efi_uintn_t size; + struct eficonfig_boot_option *bo = NULL; + + while (1) { + unsigned int selected; + void *load_option; + u16 varname[] = u"Boot####"; + + ret = eficonfig_show_boot_selection(&selected); + if (ret != EFI_SUCCESS) + break; + + bo = calloc(1, sizeof(struct eficonfig_boot_option)); + if (!bo) { + ret = EFI_OUT_OF_RESOURCES; + goto out; + } + + bo->boot_index = selected; + efi_create_indexed_name(varname, sizeof(varname), "Boot", selected); + load_option = efi_get_var(varname, &efi_global_variable_guid, &size); + if (!load_option) { + free(bo); + ret = EFI_NOT_FOUND; + goto out; + } + + ret = eficonfig_edit_boot_option(varname, bo, load_option, size, + " ** Edit Boot Option ** "); + + free(load_option); + free(bo); + if (ret != EFI_SUCCESS && ret != EFI_ABORTED) + break; + } +out: + /* to stay the parent menu */ + ret = (ret == EFI_ABORTED) ? EFI_NOT_READY : ret; + + return ret; +} + +/** + * eficonfig_display_change_boot_order() - display the BootOrder list + * + * @efi_menu: pointer to the efimenu structure + * Return: status code + */ +static void eficonfig_display_change_boot_order(struct efimenu *efi_menu) +{ + bool reverse; + struct list_head *pos, *n; + struct eficonfig_boot_order *entry; + + printf(ANSI_CLEAR_CONSOLE ANSI_CURSOR_POSITION + "\n ** Change Boot Order **\n" + ANSI_CURSOR_POSITION + " Press UP/DOWN to move, +/- to change order" + ANSI_CURSOR_POSITION + " Press SPACE to activate or deactivate the entry" + ANSI_CURSOR_POSITION + " Select [Save] to complete, ESC/CTRL+C to quit" + ANSI_CURSOR_POSITION ANSI_CLEAR_LINE, + 1, 1, efi_menu->count + 5, 1, efi_menu->count + 6, 1, + efi_menu->count + 7, 1, efi_menu->count + 8, 1); + + /* draw boot option list */ + list_for_each_safe(pos, n, &efi_menu->list) { + entry = list_entry(pos, struct eficonfig_boot_order, list); + reverse = (entry->num == efi_menu->active); + + printf(ANSI_CURSOR_POSITION, entry->num + 4, 7); + + if (reverse) + puts(ANSI_COLOR_REVERSE); + + if (entry->num < efi_menu->count - 2) { + if (entry->active) + printf("[*] "); + else + printf("[ ] "); + } + + printf("%ls", entry->description); + + if (reverse) + puts(ANSI_COLOR_RESET); + } +} + +/** + * eficonfig_choice_change_boot_order() - handle the BootOrder update + * + * @efi_menu: pointer to the efimenu structure + * Return: status code + */ +static efi_status_t eficonfig_choice_change_boot_order(struct efimenu *efi_menu) +{ + int esc = 0; + struct list_head *pos, *n; + struct eficonfig_boot_order *tmp; + enum bootmenu_key key = KEY_NONE; + struct eficonfig_boot_order *entry; + + while (1) { + bootmenu_loop(NULL, &key, &esc); + + switch (key) { + case KEY_PLUS: + if (efi_menu->active > 0) { + list_for_each_safe(pos, n, &efi_menu->list) { + entry = list_entry(pos, struct eficonfig_boot_order, list); + if (entry->num == efi_menu->active) + break; + } + tmp = list_entry(pos->prev, struct eficonfig_boot_order, list); + entry->num--; + tmp->num++; + list_del(&tmp->list); + list_add(&tmp->list, &entry->list); + } + fallthrough; + case KEY_UP: + if (efi_menu->active > 0) + --efi_menu->active; + return EFI_NOT_READY; + case KEY_MINUS: + if (efi_menu->active < efi_menu->count - 3) { + list_for_each_safe(pos, n, &efi_menu->list) { + entry = list_entry(pos, struct eficonfig_boot_order, list); + if (entry->num == efi_menu->active) + break; + } + tmp = list_entry(pos->next, struct eficonfig_boot_order, list); + entry->num++; + tmp->num--; + list_del(&entry->list); + list_add(&entry->list, &tmp->list); + + ++efi_menu->active; + } + return EFI_NOT_READY; + case KEY_DOWN: + if (efi_menu->active < efi_menu->count - 1) + ++efi_menu->active; + return EFI_NOT_READY; + case KEY_SELECT: + /* "Save" */ + if (efi_menu->active == efi_menu->count - 2) + return EFI_SUCCESS; + + /* "Quit" */ + if (efi_menu->active == efi_menu->count - 1) + return EFI_ABORTED; + + break; + case KEY_SPACE: + if (efi_menu->active < efi_menu->count - 2) { + list_for_each_safe(pos, n, &efi_menu->list) { + entry = list_entry(pos, struct eficonfig_boot_order, list); + if (entry->num == efi_menu->active) { + entry->active = entry->active ? false : true; + return EFI_NOT_READY; + } + } + } + break; + case KEY_QUIT: + return EFI_ABORTED; + default: + /* Pressed key is not valid, no need to regenerate the menu */ + break; + } + } +} + +/** + * eficonfig_add_change_boot_order_entry() - add boot order entry + * + * @efi_menu: pointer to the efimenu structure + * @boot_index: boot option index to be added + * @active: flag to include the boot option into BootOrder + * Return: status code + */ +static efi_status_t eficonfig_add_change_boot_order_entry(struct efimenu *efi_menu, + u32 boot_index, bool active) +{ + efi_status_t ret; + efi_uintn_t size; + void *load_option; + struct efi_load_option lo; + u16 varname[] = u"Boot####"; + struct eficonfig_boot_order *entry; + + efi_create_indexed_name(varname, sizeof(varname), "Boot", boot_index); + load_option = efi_get_var(varname, &efi_global_variable_guid, &size); + if (!load_option) + return EFI_SUCCESS; + + ret = efi_deserialize_load_option(&lo, load_option, &size); + if (ret != EFI_SUCCESS) { + free(load_option); + return ret; + } + + entry = calloc(1, sizeof(struct eficonfig_boot_order)); + if (!entry) { + free(load_option); + return EFI_OUT_OF_RESOURCES; + } + + entry->description = u16_strdup(lo.label); + if (!entry->description) { + free(load_option); + free(entry); + return EFI_OUT_OF_RESOURCES; + } + entry->num = efi_menu->count++; + entry->boot_index = boot_index; + entry->active = active; + list_add_tail(&entry->list, &efi_menu->list); + + free(load_option); + + return EFI_SUCCESS; +} + +/** + * eficonfig_create_change_boot_order_entry() - create boot order entry + * + * @efi_menu: pointer to the efimenu structure + * @bootorder: pointer to the BootOrder variable + * @num: number of BootOrder entry + * Return: status code + */ +static efi_status_t eficonfig_create_change_boot_order_entry(struct efimenu *efi_menu, + u16 *bootorder, efi_uintn_t num) +{ + u32 i; + efi_status_t ret; + struct eficonfig_boot_order *entry; + + /* list the load option in the order of BootOrder variable */ + for (i = 0; i < num; i++) { + if (efi_menu->count >= EFICONFIG_ENTRY_NUM_MAX - 2) + break; + + ret = eficonfig_add_change_boot_order_entry(efi_menu, bootorder[i], true); + if (ret != EFI_SUCCESS) + goto out; + } + + /* list the remaining load option not included in the BootOrder */ + for (i = 0; i < 0xFFFF; i++) { + if (efi_menu->count >= EFICONFIG_ENTRY_NUM_MAX - 2) + break; + + /* If the index is included in the BootOrder, skip it */ + if (search_bootorder(bootorder, num, i, NULL)) + continue; + + ret = eficonfig_add_change_boot_order_entry(efi_menu, i, false); + if (ret != EFI_SUCCESS) + goto out; + } + + /* add "Save" and "Quit" entries */ + entry = calloc(1, sizeof(struct eficonfig_boot_order)); + if (!entry) + goto out; + + entry->num = efi_menu->count++; + entry->description = u16_strdup(u"Save"); + list_add_tail(&entry->list, &efi_menu->list); + + entry = calloc(1, sizeof(struct eficonfig_boot_order)); + if (!entry) + goto out; + + entry->num = efi_menu->count++; + entry->description = u16_strdup(u"Quit"); + list_add_tail(&entry->list, &efi_menu->list); + + efi_menu->active = 0; + + return EFI_SUCCESS; +out: + return EFI_OUT_OF_RESOURCES; +} + +/** + * eficonfig_process_change_boot_order() - handler to change boot order + * + * @data: pointer to the data for each entry + * Return: status code + */ +static efi_status_t eficonfig_process_change_boot_order(void *data) +{ + u32 count; + u16 *bootorder; + efi_status_t ret; + efi_uintn_t num, size; + struct list_head *pos, *n; + struct eficonfig_boot_order *entry; + struct efimenu *efi_menu; + + efi_menu = calloc(1, sizeof(struct efimenu)); + if (!efi_menu) + return EFI_OUT_OF_RESOURCES; + + bootorder = efi_get_var(u"BootOrder", &efi_global_variable_guid, &size); + + INIT_LIST_HEAD(&efi_menu->list); + num = size / sizeof(u16); + ret = eficonfig_create_change_boot_order_entry(efi_menu, bootorder, num); + if (ret != EFI_SUCCESS) + goto out; + + while (1) { + eficonfig_display_change_boot_order(efi_menu); + + ret = eficonfig_choice_change_boot_order(efi_menu); + if (ret == EFI_SUCCESS) { + u16 *new_bootorder; + + new_bootorder = calloc(1, (efi_menu->count - 2) * sizeof(u16)); + if (!new_bootorder) { + ret = EFI_OUT_OF_RESOURCES; + goto out; + } + + /* create new BootOrder */ + count = 0; + list_for_each_safe(pos, n, &efi_menu->list) { + entry = list_entry(pos, struct eficonfig_boot_order, list); + if (entry->active) + new_bootorder[count++] = entry->boot_index; + } + + size = count * sizeof(u16); + ret = efi_set_variable_int(u"BootOrder", &efi_global_variable_guid, + EFI_VARIABLE_NON_VOLATILE | + EFI_VARIABLE_BOOTSERVICE_ACCESS | + EFI_VARIABLE_RUNTIME_ACCESS, + size, new_bootorder, false); + + free(new_bootorder); + goto out; + } else if (ret == EFI_NOT_READY) { + continue; + } else { + goto out; + } + } +out: + list_for_each_safe(pos, n, &efi_menu->list) { + entry = list_entry(pos, struct eficonfig_boot_order, list); + list_del(&entry->list); + free(entry->description); + free(entry); + } + + free(bootorder); + free(efi_menu); + + /* to stay the parent menu */ + ret = (ret == EFI_ABORTED) ? EFI_NOT_READY : ret; + + return ret; +} + +/** + * delete_boot_option() - delete selected boot option + * + * @boot_index: boot option index to delete + * Return: status code + */ +static efi_status_t delete_boot_option(u16 boot_index) +{ + u16 *bootorder; + u16 varname[9]; + efi_status_t ret; + unsigned int index; + efi_uintn_t num, size; + + efi_create_indexed_name(varname, sizeof(varname), + "Boot", boot_index); + ret = efi_set_variable_int(varname, &efi_global_variable_guid, + 0, 0, NULL, false); + if (ret != EFI_SUCCESS) { + log_err("delete boot option(%ls) failed\n", varname); + return ret; + } + + /* update BootOrder if necessary */ + bootorder = efi_get_var(u"BootOrder", &efi_global_variable_guid, &size); + if (!bootorder) + return EFI_SUCCESS; + + num = size / sizeof(u16); + if (!search_bootorder(bootorder, num, boot_index, &index)) + return EFI_SUCCESS; + + memmove(&bootorder[index], &bootorder[index + 1], + (num - index - 1) * sizeof(u16)); + size -= sizeof(u16); + ret = efi_set_variable_int(u"BootOrder", &efi_global_variable_guid, + EFI_VARIABLE_NON_VOLATILE | + EFI_VARIABLE_BOOTSERVICE_ACCESS | + EFI_VARIABLE_RUNTIME_ACCESS, + size, bootorder, false); + + return ret; +} + +/** + * eficonfig_process_delete_boot_option() - handler to delete boot option + * + * @data: pointer to the data for each entry + * Return: status code + */ +static efi_status_t eficonfig_process_delete_boot_option(void *data) +{ + efi_status_t ret; + unsigned int selected; + + while (1) { + ret = eficonfig_show_boot_selection(&selected); + if (ret == EFI_SUCCESS) + ret = delete_boot_option(selected); + + if (ret != EFI_SUCCESS) + break; + } + + /* to stay the parent menu */ + ret = (ret == EFI_ABORTED) ? EFI_NOT_READY : ret; + + return ret; +} + +/** + * eficonfig_enumerate_boot_option() - enumerate the possible bootable media + * + * @opt: pointer to the media boot option structure + * @volume_handles: pointer to the efi handles + * @count: number of efi handle + * Return: status code + */ +efi_status_t eficonfig_enumerate_boot_option(struct eficonfig_media_boot_option *opt, + efi_handle_t *volume_handles, efi_status_t count) +{ + u32 i; + struct efi_handler *handler; + efi_status_t ret = EFI_SUCCESS; + + for (i = 0; i < count; i++) { + u16 *p; + u16 dev_name[BOOTMENU_DEVICE_NAME_MAX]; + char *optional_data; + struct efi_load_option lo; + char buf[BOOTMENU_DEVICE_NAME_MAX]; + struct efi_device_path *device_path; + + ret = efi_search_protocol(volume_handles[i], &efi_guid_device_path, &handler); + if (ret != EFI_SUCCESS) + continue; + ret = efi_protocol_open(handler, (void **)&device_path, + efi_root, NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL); + if (ret != EFI_SUCCESS) + continue; + + ret = efi_disk_get_device_name(volume_handles[i], buf, BOOTMENU_DEVICE_NAME_MAX); + if (ret != EFI_SUCCESS) + continue; + + p = dev_name; + utf8_utf16_strncpy(&p, buf, strlen(buf)); + + lo.label = dev_name; + lo.attributes = LOAD_OPTION_ACTIVE; + lo.file_path = device_path; + lo.file_path_length = efi_dp_size(device_path) + sizeof(END); + /* + * Set the dedicated guid to optional_data, it is used to identify + * the boot option that automatically generated by the bootmenu. + * efi_serialize_load_option() expects optional_data is null-terminated + * utf8 string, so set the "1234567" string to allocate enough space + * to store guid, instead of realloc the load_option. + */ + lo.optional_data = "1234567"; + opt[i].size = efi_serialize_load_option(&lo, (u8 **)&opt[i].lo); + if (!opt[i].size) { + ret = EFI_OUT_OF_RESOURCES; + goto out; + } + /* set the guid */ + optional_data = (char *)opt[i].lo + (opt[i].size - u16_strsize(u"1234567")); + memcpy(optional_data, &efi_guid_bootmenu_auto_generated, sizeof(efi_guid_t)); + } + +out: + return ret; +} + +/** + * eficonfig_delete_invalid_boot_option() - delete non-existing boot option + * + * @opt: pointer to the media boot option structure + * @count: number of media boot option structure + * Return: status code + */ +efi_status_t eficonfig_delete_invalid_boot_option(struct eficonfig_media_boot_option *opt, + efi_status_t count) +{ + u32 i, j; + efi_uintn_t size; + efi_status_t ret; + void *load_option; + struct efi_load_option lo; + u16 varname[] = u"Boot####"; + + for (i = 0; i <= 0xFFFF; i++) { + efi_uintn_t tmp; + + efi_create_indexed_name(varname, sizeof(varname), "Boot", i); + load_option = efi_get_var(varname, &efi_global_variable_guid, &size); + if (!load_option) + continue; + + tmp = size; + ret = efi_deserialize_load_option(&lo, load_option, &size); + if (ret != EFI_SUCCESS) + goto next; + + if (size >= sizeof(efi_guid_bootmenu_auto_generated)) { + if (guidcmp(lo.optional_data, &efi_guid_bootmenu_auto_generated) == 0) { + for (j = 0; j < count; j++) { + if (opt[j].size == tmp && + memcmp(opt[j].lo, load_option, tmp) == 0) { + opt[j].exist = true; + break; + } + } + + if (j == count) { + ret = delete_boot_option(i); + if (ret != EFI_SUCCESS) { + free(load_option); + goto out; + } + } + } + } +next: + free(load_option); + } + +out: + return ret; +} + +/** + * eficonfig_generate_media_device_boot_option() - generate the media device boot option + * + * This function enumerates all devices supporting EFI_SIMPLE_FILE_SYSTEM_PROTOCOL + * and generate the bootmenu entries. + * This function also provide the BOOT#### variable maintenance for + * the media device entries. + * - Automatically create the BOOT#### variable for the newly detected device, + * this BOOT#### variable is distinguished by the special GUID + * stored in the EFI_LOAD_OPTION.optional_data + * - If the device is not attached to the system, the associated BOOT#### variable + * is automatically deleted. + * + * Return: status code + */ +efi_status_t eficonfig_generate_media_device_boot_option(void) +{ + u32 i; + efi_status_t ret; + efi_uintn_t count; + efi_handle_t *volume_handles = NULL; + struct eficonfig_media_boot_option *opt = NULL; + + ret = efi_locate_handle_buffer_int(BY_PROTOCOL, &efi_simple_file_system_protocol_guid, + NULL, &count, (efi_handle_t **)&volume_handles); + if (ret != EFI_SUCCESS) + return ret; + + opt = calloc(count, sizeof(struct eficonfig_media_boot_option)); + if (!opt) + goto out; + + /* enumerate all devices supporting EFI_SIMPLE_FILE_SYSTEM_PROTOCOL */ + ret = eficonfig_enumerate_boot_option(opt, volume_handles, count); + if (ret != EFI_SUCCESS) + goto out; + + /* + * System hardware configuration may vary depending on the user setup. + * The boot option is automatically added by the bootmenu. + * If the device is not attached to the system, the boot option needs + * to be deleted. + */ + ret = eficonfig_delete_invalid_boot_option(opt, count); + if (ret != EFI_SUCCESS) + goto out; + + /* add non-existent boot option */ + for (i = 0; i < count; i++) { + u32 boot_index; + u16 var_name[9]; + + if (!opt[i].exist) { + ret = eficonfig_get_unused_bootoption(var_name, sizeof(var_name), + &boot_index); + if (ret != EFI_SUCCESS) + goto out; + + ret = efi_set_variable_int(var_name, &efi_global_variable_guid, + EFI_VARIABLE_NON_VOLATILE | + EFI_VARIABLE_BOOTSERVICE_ACCESS | + EFI_VARIABLE_RUNTIME_ACCESS, + opt[i].size, opt[i].lo, false); + if (ret != EFI_SUCCESS) + goto out; + + ret = eficonfig_append_bootorder(boot_index); + if (ret != EFI_SUCCESS) { + efi_set_variable_int(var_name, &efi_global_variable_guid, + 0, 0, NULL, false); + goto out; + } + } + } + +out: + if (opt) { + for (i = 0; i < count; i++) + free(opt[i].lo); + } + free(opt); + efi_free_pool(volume_handles); + + return ret; +} + +/** + * eficonfig_init() - do required initialization for eficonfig command + * + * Return: status code + */ +static efi_status_t eficonfig_init(void) +{ + efi_status_t ret = EFI_SUCCESS; + static bool init; + struct efi_handler *handler; + + if (!init) { + ret = efi_search_protocol(efi_root, &efi_guid_text_input_protocol, &handler); + if (ret != EFI_SUCCESS) + return ret; + + ret = efi_protocol_open(handler, (void **)&cin, efi_root, NULL, + EFI_OPEN_PROTOCOL_GET_PROTOCOL); + if (ret != EFI_SUCCESS) + return ret; + } + + init = true; + + return ret; +} + +static const struct eficonfig_item maintenance_menu_items[] = { + {"Add Boot Option", eficonfig_process_add_boot_option}, + {"Edit Boot Option", eficonfig_process_edit_boot_option}, + {"Change Boot Order", eficonfig_process_change_boot_order}, + {"Delete Boot Option", eficonfig_process_delete_boot_option}, + {"Quit", eficonfig_process_quit}, +}; + +/** + * do_eficonfig() - execute `eficonfig` command + * + * @cmdtp: table entry describing command + * @flag: bitmap indicating how the command was invoked + * @argc: number of arguments + * @argv: command line arguments + * Return: status code + */ +static int do_eficonfig(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) +{ + efi_status_t ret; + struct efimenu *efi_menu; + + if (argc > 1) + return CMD_RET_USAGE; + + ret = efi_init_obj_list(); + if (ret != EFI_SUCCESS) { + log_err("Error: Cannot initialize UEFI sub-system, r = %lu\n", + ret & ~EFI_ERROR_MASK); + + return CMD_RET_FAILURE; + } + + ret = eficonfig_init(); + if (ret != EFI_SUCCESS) + return CMD_RET_FAILURE; + + ret = eficonfig_generate_media_device_boot_option(); + if (ret != EFI_SUCCESS && ret != EFI_NOT_FOUND) + return ret; + + while (1) { + efi_menu = eficonfig_create_fixed_menu(maintenance_menu_items, + ARRAY_SIZE(maintenance_menu_items)); + if (!efi_menu) + return CMD_RET_FAILURE; + + ret = eficonfig_process_common(efi_menu, " ** UEFI Maintenance Menu **"); + eficonfig_destroy(efi_menu); + + if (ret == EFI_ABORTED) + break; + } + + return CMD_RET_SUCCESS; +} + +U_BOOT_CMD( + eficonfig, 1, 0, do_eficonfig, + "provide menu-driven UEFI variable maintenance interface", + "" +); |