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User selects the item from the boot option list, then user can edit the description, file path and optional_data. Note that automatically generated boot option entry by bootmenu to support the removable media device is filtered out and user can not edit the automatically generated entry. Signed-off-by: Masahisa Kojima --- Changes in v15: - move free entry->data outside the eficonfig_destroy() Changes in v11: - remove BootOrder variable dependency - change the list load option order 1) in the order of BootOrder 2) remaing load option that is not included in the BootOrder - add check for the number of menu entry exceeds max - truncate the long load option label when user edits - add EFICONFIG_VOLUME_PATH_MAX to display text converted volume device path in case the volume does not exist Changes in v10: - update eficonfig_edit_boot_option() argument Changes in v9: - add function comment Changes in v8: - fix menu header string - fix function and structure prefix to "eficonfig" Newly created in v7 cmd/eficonfig.c | 281 +++++++++++++++++++++++++++++++++++++++++-- include/efi_config.h | 1 + 2 files changed, 274 insertions(+), 8 deletions(-) diff --git a/cmd/eficonfig.c b/cmd/eficonfig.c index 30ce55d055..bba83579a3 100644 --- a/cmd/eficonfig.c +++ b/cmd/eficonfig.c @@ -80,6 +80,17 @@ struct eficonfig_file_entry_data { u16 *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; +}; + /** * eficonfig_print_msg() - print message * @@ -1169,34 +1180,58 @@ static efi_status_t prepare_file_selection_entry(struct efimenu *efi_menu, char { u32 len; efi_status_t ret; - u16 *file_name, *p; + u16 *file_name = NULL, *p; efi_handle_t handle; - char devname[BOOTMENU_DEVICE_NAME_MAX] = {0}; + 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, BOOTMENU_DEVICE_NAME_MAX); + ret = efi_disk_get_device_name(handle, devname, EFICONFIG_VOLUME_PATH_MAX); if (ret != EFI_SUCCESS) - return ret; + 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, "/", BOOTMENU_DEVICE_NAME_MAX); + 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) - return ret; + 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; } @@ -1363,10 +1398,14 @@ static efi_status_t eficonfig_edit_boot_option(u16 *varname, struct eficonfig_bo if (ret != EFI_SUCCESS) goto out; - if (!lo.label || (lo.label && u16_strlen(lo.label) >= EFICONFIG_DESCRIPTION_MAX)) { + 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 */ @@ -1484,6 +1523,231 @@ out: 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_init() - do required initialization for eficonfig command * @@ -1513,6 +1777,7 @@ static efi_status_t eficonfig_init(void) static const struct eficonfig_item maintenance_menu_items[] = { {"Add Boot Option", eficonfig_process_add_boot_option}, + {"Edit Boot Option", eficonfig_process_edit_boot_option}, {"Quit", eficonfig_process_quit}, }; diff --git a/include/efi_config.h b/include/efi_config.h index ea5bc4e1bf..dddffe045e 100644 --- a/include/efi_config.h +++ b/include/efi_config.h @@ -11,6 +11,7 @@ #include #define EFICONFIG_ENTRY_NUM_MAX 99 +#define EFICONFIG_VOLUME_PATH_MAX 512 #define EFICONFIG_FILE_PATH_MAX 512 #define EFICONFIG_FILE_PATH_BUF_SIZE (EFICONFIG_FILE_PATH_MAX * sizeof(u16))