[PATCH v8 3/9] eficonfig: add "Edit Boot Option" menu entry
Heinrich Schuchardt
xypron.glpk at gmx.de
Sun Jul 10 11:08:18 CEST 2022
On 6/19/22 06:56, Masahisa Kojima wrote:
> This commit adds the menu entry to edit the existing
> BOOT#### variable contents.
> 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 suppport the removable media device is filtered out and user
> can not edit the automatically generated entry.
>
> Signed-off-by: Masahisa Kojima <masahisa.kojima at linaro.org>
> ---
> Changes in v8:
> - fix menu header string
> - fix function and structure prefix to "eficonfig"
>
> Newly created in v7
>
> cmd/eficonfig.c | 172 ++++++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 172 insertions(+)
>
> diff --git a/cmd/eficonfig.c b/cmd/eficonfig.c
> index 20747db115..0a58b83ea3 100644
> --- a/cmd/eficonfig.c
> +++ b/cmd/eficonfig.c
> @@ -1197,6 +1197,177 @@ out:
> return ret;
> }
>
Please, provide function descriptions.
Best regards
Heinrich
> +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;
> +}
> +
> +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 = 0;
> + 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;
> + actual_count += 1;
> +
> + 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;
> +}
> +
> +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;
> +}
> +
> static efi_status_t eficonfig_init(void)
> {
> efi_status_t ret;
> @@ -1230,6 +1401,7 @@ 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},
> };
>
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