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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 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 | 202 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 202 insertions(+) diff --git a/cmd/eficonfig.c b/cmd/eficonfig.c index 235d5014c7..d923afe726 100644 --- a/cmd/eficonfig.c +++ b/cmd/eficonfig.c @@ -78,6 +78,17 @@ struct eficonfig_file_entry_data { u16 *file_name; }; +/** + * struct eficonfig_boot_selection_data - structure to be used to select the boot option entry + * + * @bootorder_index: index in the BootOrder variable + * @selected: pointer to store the selected index in the BootOrder variable + */ +struct eficonfig_boot_selection_data { + u16 bootorder_index; + int *selected; +}; + /** * eficonfig_print_msg() - print message * @@ -1246,6 +1257,196 @@ 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->bootorder_index; + + return EFI_SUCCESS; +} + +/** + * eficonfig_show_boot_selection() - construct boot option menu entry + * + * @bootorder: pointer to the BootOrder variable + * @count: the number of BootOrder + * @selected: pointer to store the selected index of BootOrder variable + * Return: status code + */ +static efi_status_t eficonfig_show_boot_selection(u16 *bootorder, efi_uintn_t count, + int *selected) +{ + u32 i; + efi_status_t ret; + efi_uintn_t size, actual_count = 1; /* include "Quit" entry */ + void *load_option; + struct efi_load_option lo; + u16 varname[] = u"Boot####"; + struct eficonfig_item *menu_item, *iter; + + menu_item = calloc(count + 1, sizeof(struct eficonfig_item)); + if (!menu_item) { + ret = EFI_OUT_OF_RESOURCES; + goto out; + } + + iter = menu_item; + for (i = 0; i < count; i++) { + efi_create_indexed_name(varname, sizeof(varname), + "Boot", bootorder[i]); + load_option = efi_get_var(varname, &efi_global_variable_guid, &size); + if (!load_option) + continue; + + 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); + continue; + } + + 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); + continue; + } + + if (lo.attributes & LOAD_OPTION_ACTIVE) { + char *buf, *p; + struct eficonfig_boot_selection_data *info; + + info = calloc(1, sizeof(struct eficonfig_boot_selection_data)); + if (!info) { + free(load_option); + ret = EFI_OUT_OF_RESOURCES; + goto out; + } + + buf = calloc(1, utf16_utf8_strlen(lo.label) + 1); + if (!buf) { + free(load_option); + free(info); + ret = EFI_OUT_OF_RESOURCES; + goto out; + } + p = buf; + utf16_utf8_strcpy(&p, lo.label); + info->bootorder_index = i; + info->selected = selected; + iter->title = buf; + iter->func = eficonfig_process_boot_selected; + iter->data = info; + iter++; + actual_count++; + } + free(load_option); + } + + /* add "Quit" entry */ + iter->title = strdup("Quit"); + iter->func = eficonfig_process_quit; + iter->data = NULL; + + ret = eficonfig_process_common(menu_item, actual_count, " ** Select Boot Option **"); + +out: + iter = menu_item; + for (i = 0; i < actual_count; i++, iter++) { + free(iter->title); + free(iter->data); + } + + free(menu_item); + + 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) +{ + u16 *bootorder; + efi_status_t ret; + efi_uintn_t num, size; + struct eficonfig_boot_option *bo = NULL; + + bootorder = efi_get_var(u"BootOrder", &efi_global_variable_guid, &size); + if (!bootorder) { + eficonfig_print_msg("BootOrder is not defined!"); + ret = EFI_NOT_FOUND; + return ret; + } + + num = size / sizeof(u16); + while (1) { + int selected; + void *load_option; + struct efi_load_option lo; + u16 varname[] = u"Boot####"; + + ret = eficonfig_show_boot_selection(bootorder, num, &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", bootorder[selected]); + load_option = efi_get_var(varname, &efi_global_variable_guid, &size); + if (!load_option) { + free(bo); + ret = EFI_NOT_FOUND; + goto out; + } + + ret = efi_deserialize_load_option(&lo, load_option, &size); + if (ret != EFI_SUCCESS) { + free(bo); + free(load_option); + goto out; + } + + ret = eficonfig_edit_boot_option(varname, bo, lo.label, lo.optional_data, + size, lo.file_path, + " ** Edit Boot Option ** "); + + free(load_option); + free(bo); + if (ret != EFI_SUCCESS && ret != EFI_ABORTED) + break; + } + +out: + free(bootorder); + + /* to stay the parent menu */ + ret = (ret == EFI_ABORTED) ? EFI_NOT_READY : ret; + + return ret; +} + /** * eficonfig_init() - do required initialization for eficonfig command * @@ -1275,6 +1476,7 @@ 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}, };