This commit adds the menu entry to delete the UEFI boot option. User moves the entry with UP/DOWN key, changes, then presses ENTER key to delete the selected boot option.
Signed-off-by: Masahisa Kojima masahisa.kojima@linaro.org --- No update since v9
Changes in v9: - add function comment
Changes in v8: - function and structure prefix is changed to "eficonfig"
Changes in v7: - to stay the boot order list after user delete the entry
no update in v6:
changes in v5:
cmd/eficonfig.c | 76 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+)
diff --git a/cmd/eficonfig.c b/cmd/eficonfig.c index 482efc33d1..54c5cf8a11 100644 --- a/cmd/eficonfig.c +++ b/cmd/eficonfig.c @@ -1812,6 +1812,81 @@ out: return ret; }
+/** + * delete_boot_option() - delete selected boot option + * + * @bootorder: pointer to the bootorder + * @index: index to delete in the BootOrder variable + * @size: Bootorder variable size + * Return: status code + */ +static efi_status_t delete_boot_option(u16 *bootorder, u16 index, efi_uintn_t size) +{ + u16 varname[9]; + efi_status_t ret; + efi_uintn_t num; + + efi_create_indexed_name(varname, sizeof(varname), + "Boot", bootorder[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 */ + num = size / sizeof(u16); + 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) +{ + int selected; + u16 *bootorder; + efi_status_t ret; + efi_uintn_t num, size; + + while (1) { + 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); + ret = eficonfig_show_boot_selection(bootorder, num, &selected); + if (ret == EFI_SUCCESS) + ret = delete_boot_option(bootorder, selected, size); + + if (ret != EFI_SUCCESS) + break; + } + + 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 * @@ -1843,6 +1918,7 @@ 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}, };