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eficonfig: add "Delete Boot Option" menu entry

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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>
This commit is contained in:
Masahisa Kojima
2022-09-12 17:33:53 +09:00
committed by Heinrich Schuchardt
parent 95fc669774
commit bb8498aad6
1 changed files with 71 additions and 0 deletions
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71
cmd/eficonfig.c
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@@ -1788,6 +1788,76 @@ out:
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_init() - do required initialization for eficonfig command
*
@@ -1818,6 +1888,7 @@ 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},
{"Delete Boot Option", eficonfig_process_delete_boot_option},
{"Quit", eficonfig_process_quit},
};