[PATCH v16 07/10] eficonfig: add "Change Boot Order" menu entry
Masahisa Kojima
masahisa.kojima at linaro.org
Mon Sep 5 14:47:59 CEST 2022
This commit adds the menu entry to update UEFI BootOrder variable.
User moves the entry with UP/DOWN key, changes the order
with PLUS/MINUS key, press SPACE to activate or deactivate
the entry, then finalizes the order by ENTER key.
If the entry is activated, the boot index is added into the
BootOrder variable in the order of the list.
The U-Boot menu framework is well designed for static menu,
this commit implements the own menu display and key handling
for dynamically change the order of menu entry.
Signed-off-by: Masahisa Kojima <masahisa.kojima at linaro.org>
---
No update since v15
Changes in v14:
- remove scan of media device, it is moved into eficonfig startup
- add comment in default case for key handling
- add missing break in eficonfig_choice_entry
Changes in v12:
- enumerate removable media device
Changes in v11:
- remove BootOrder variable dependency
- use ANSI_CURSOR_POSITION and ANSI_CLEAR_LINE instead of printf("\n")
since current eficonfig implementation does not handle console size correctly.
printf("\n") at the outside of console size breaks the console output.
- add KEY_SPACE to toggle the boot option active status
No update since v9
Changes in v9:
- add function comment
Changes in v8:
- add "Save" and "Quit" entries
Changes in v7:
- use UP/DOWN and PLUS/MINUS key to change to order
no update in v6:
cmd/eficonfig.c | 348 +++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 347 insertions(+), 1 deletion(-)
diff --git a/cmd/eficonfig.c b/cmd/eficonfig.c
index 285d2a11ec..5cfab6a46c 100644
--- a/cmd/eficonfig.c
+++ b/cmd/eficonfig.c
@@ -91,6 +91,23 @@ struct eficonfig_boot_selection_data {
int *selected;
};
+/**
+ * struct eficonfig_boot_order - structure to be used to update BootOrder variable
+ *
+ * @num: index in the menu entry
+ * @description: pointer to the description string
+ * @boot_index: boot option index
+ * @active: flag to include the boot option into BootOrder variable
+ * @list: list structure
+ */
+struct eficonfig_boot_order {
+ u32 num;
+ u16 *description;
+ u32 boot_index;
+ bool active;
+ struct list_head list;
+};
+
/**
* eficonfig_print_msg() - print message
*
@@ -1744,6 +1761,335 @@ out:
return ret;
}
+/**
+ * eficonfig_display_change_boot_order() - display the BootOrder list
+ *
+ * @efi_menu: pointer to the efimenu structure
+ * Return: status code
+ */
+static void eficonfig_display_change_boot_order(struct efimenu *efi_menu)
+{
+ bool reverse;
+ struct list_head *pos, *n;
+ struct eficonfig_boot_order *entry;
+
+ printf(ANSI_CLEAR_CONSOLE ANSI_CURSOR_POSITION
+ "\n ** Change Boot Order **\n"
+ ANSI_CURSOR_POSITION
+ " Press UP/DOWN to move, +/- to change order"
+ ANSI_CURSOR_POSITION
+ " Press SPACE to activate or deactivate the entry"
+ ANSI_CURSOR_POSITION
+ " Select [Save] to complete, ESC/CTRL+C to quit"
+ ANSI_CURSOR_POSITION ANSI_CLEAR_LINE,
+ 1, 1, efi_menu->count + 5, 1, efi_menu->count + 6, 1,
+ efi_menu->count + 7, 1, efi_menu->count + 8, 1);
+
+ /* draw boot option list */
+ list_for_each_safe(pos, n, &efi_menu->list) {
+ entry = list_entry(pos, struct eficonfig_boot_order, list);
+ reverse = (entry->num == efi_menu->active);
+
+ printf(ANSI_CURSOR_POSITION, entry->num + 4, 7);
+
+ if (reverse)
+ puts(ANSI_COLOR_REVERSE);
+
+ if (entry->num < efi_menu->count - 2) {
+ if (entry->active)
+ printf("[*] ");
+ else
+ printf("[ ] ");
+ }
+
+ printf("%ls", entry->description);
+
+ if (reverse)
+ puts(ANSI_COLOR_RESET);
+ }
+}
+
+/**
+ * eficonfig_choice_change_boot_order() - handle the BootOrder update
+ *
+ * @efi_menu: pointer to the efimenu structure
+ * Return: status code
+ */
+static efi_status_t eficonfig_choice_change_boot_order(struct efimenu *efi_menu)
+{
+ int esc = 0;
+ struct list_head *pos, *n;
+ struct eficonfig_boot_order *tmp;
+ enum bootmenu_key key = KEY_NONE;
+ struct eficonfig_boot_order *entry;
+
+ while (1) {
+ bootmenu_loop(NULL, &key, &esc);
+
+ switch (key) {
+ case KEY_PLUS:
+ if (efi_menu->active > 0) {
+ list_for_each_safe(pos, n, &efi_menu->list) {
+ entry = list_entry(pos, struct eficonfig_boot_order, list);
+ if (entry->num == efi_menu->active)
+ break;
+ }
+ tmp = list_entry(pos->prev, struct eficonfig_boot_order, list);
+ entry->num--;
+ tmp->num++;
+ list_del(&tmp->list);
+ list_add(&tmp->list, &entry->list);
+ }
+ fallthrough;
+ case KEY_UP:
+ if (efi_menu->active > 0)
+ --efi_menu->active;
+ return EFI_NOT_READY;
+ case KEY_MINUS:
+ if (efi_menu->active < efi_menu->count - 3) {
+ list_for_each_safe(pos, n, &efi_menu->list) {
+ entry = list_entry(pos, struct eficonfig_boot_order, list);
+ if (entry->num == efi_menu->active)
+ break;
+ }
+ tmp = list_entry(pos->next, struct eficonfig_boot_order, list);
+ entry->num++;
+ tmp->num--;
+ list_del(&entry->list);
+ list_add(&entry->list, &tmp->list);
+
+ ++efi_menu->active;
+ }
+ return EFI_NOT_READY;
+ case KEY_DOWN:
+ if (efi_menu->active < efi_menu->count - 1)
+ ++efi_menu->active;
+ return EFI_NOT_READY;
+ case KEY_SELECT:
+ /* "Save" */
+ if (efi_menu->active == efi_menu->count - 2)
+ return EFI_SUCCESS;
+
+ /* "Quit" */
+ if (efi_menu->active == efi_menu->count - 1)
+ return EFI_ABORTED;
+
+ break;
+ case KEY_SPACE:
+ if (efi_menu->active < efi_menu->count - 2) {
+ list_for_each_safe(pos, n, &efi_menu->list) {
+ entry = list_entry(pos, struct eficonfig_boot_order, list);
+ if (entry->num == efi_menu->active) {
+ entry->active = entry->active ? false : true;
+ return EFI_NOT_READY;
+ }
+ }
+ }
+ break;
+ case KEY_QUIT:
+ return EFI_ABORTED;
+ default:
+ /* Pressed key is not valid, no need to regenerate the menu */
+ break;
+ }
+ }
+}
+
+/**
+ * eficonfig_add_change_boot_order_entry() - add boot order entry
+ *
+ * @efi_menu: pointer to the efimenu structure
+ * @boot_index: boot option index to be added
+ * @active: flag to include the boot option into BootOrder
+ * Return: status code
+ */
+static efi_status_t eficonfig_add_change_boot_order_entry(struct efimenu *efi_menu,
+ u32 boot_index, bool active)
+{
+ efi_status_t ret;
+ efi_uintn_t size;
+ void *load_option;
+ struct efi_load_option lo;
+ u16 varname[] = u"Boot####";
+ struct eficonfig_boot_order *entry;
+
+ 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) {
+ free(load_option);
+ return ret;
+ }
+
+ entry = calloc(1, sizeof(struct eficonfig_boot_order));
+ if (!entry) {
+ free(load_option);
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ entry->description = u16_strdup(lo.label);
+ if (!entry->description) {
+ free(load_option);
+ free(entry);
+ return EFI_OUT_OF_RESOURCES;
+ }
+ entry->num = efi_menu->count++;
+ entry->boot_index = boot_index;
+ entry->active = active;
+ list_add_tail(&entry->list, &efi_menu->list);
+
+ free(load_option);
+
+ return EFI_SUCCESS;
+}
+
+/**
+ * eficonfig_create_change_boot_order_entry() - create boot order entry
+ *
+ * @efi_menu: pointer to the efimenu structure
+ * @bootorder: pointer to the BootOrder variable
+ * @num: number of BootOrder entry
+ * Return: status code
+ */
+static efi_status_t eficonfig_create_change_boot_order_entry(struct efimenu *efi_menu,
+ u16 *bootorder, efi_uintn_t num)
+{
+ u32 i;
+ efi_status_t ret;
+ struct eficonfig_boot_order *entry;
+
+ /* list the load option in the order of BootOrder variable */
+ for (i = 0; i < num; i++) {
+ if (efi_menu->count >= EFICONFIG_ENTRY_NUM_MAX - 2)
+ break;
+
+ ret = eficonfig_add_change_boot_order_entry(efi_menu, bootorder[i], true);
+ if (ret != EFI_SUCCESS)
+ goto out;
+ }
+
+ /* list the remaining load option not included in the BootOrder */
+ for (i = 0; i < 0xFFFF; i++) {
+ if (efi_menu->count >= EFICONFIG_ENTRY_NUM_MAX - 2)
+ break;
+
+ /* If the index is included in the BootOrder, skip it */
+ if (search_bootorder(bootorder, num, i, NULL))
+ continue;
+
+ ret = eficonfig_add_change_boot_order_entry(efi_menu, i, false);
+ if (ret != EFI_SUCCESS)
+ goto out;
+ }
+
+ /* add "Save" and "Quit" entries */
+ entry = calloc(1, sizeof(struct eficonfig_boot_order));
+ if (!entry)
+ goto out;
+
+ entry->num = efi_menu->count++;
+ entry->description = u16_strdup(u"Save");
+ list_add_tail(&entry->list, &efi_menu->list);
+
+ entry = calloc(1, sizeof(struct eficonfig_boot_order));
+ if (!entry)
+ goto out;
+
+ entry->num = efi_menu->count++;
+ entry->description = u16_strdup(u"Quit");
+ list_add_tail(&entry->list, &efi_menu->list);
+
+ efi_menu->active = 0;
+
+ return EFI_SUCCESS;
+out:
+ return EFI_OUT_OF_RESOURCES;
+}
+
+/**
+ * eficonfig_process_change_boot_order() - handler to change boot order
+ *
+ * @data: pointer to the data for each entry
+ * Return: status code
+ */
+static efi_status_t eficonfig_process_change_boot_order(void *data)
+{
+ u32 count;
+ u16 *bootorder;
+ efi_status_t ret;
+ efi_uintn_t num, size;
+ struct list_head *pos, *n;
+ struct eficonfig_boot_order *entry;
+ struct efimenu *efi_menu;
+
+ 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);
+ ret = eficonfig_create_change_boot_order_entry(efi_menu, bootorder, num);
+ if (ret != EFI_SUCCESS)
+ goto out;
+
+ while (1) {
+ eficonfig_display_change_boot_order(efi_menu);
+
+ ret = eficonfig_choice_change_boot_order(efi_menu);
+ if (ret == EFI_SUCCESS) {
+ u16 *new_bootorder;
+
+ new_bootorder = calloc(1, (efi_menu->count - 2) * sizeof(u16));
+ if (!new_bootorder) {
+ ret = EFI_OUT_OF_RESOURCES;
+ goto out;
+ }
+
+ /* create new BootOrder */
+ count = 0;
+ list_for_each_safe(pos, n, &efi_menu->list) {
+ entry = list_entry(pos, struct eficonfig_boot_order, list);
+ if (entry->active)
+ new_bootorder[count++] = entry->boot_index;
+ }
+
+ size = count * 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, new_bootorder, false);
+
+ free(new_bootorder);
+ goto out;
+ } else if (ret == EFI_NOT_READY) {
+ continue;
+ } else {
+ goto out;
+ }
+ }
+out:
+ list_for_each_safe(pos, n, &efi_menu->list) {
+ entry = list_entry(pos, struct eficonfig_boot_order, list);
+ list_del(&entry->list);
+ free(entry->description);
+ free(entry);
+ }
+
+ free(bootorder);
+ free(efi_menu);
+
+ /* to stay the parent menu */
+ ret = (ret == EFI_ABORTED) ? EFI_NOT_READY : ret;
+
+ return ret;
+}
+
/**
* delete_boot_option() - delete selected boot option
*
@@ -2021,7 +2367,6 @@ out:
return ret;
}
-
/**
* eficonfig_init() - do required initialization for eficonfig command
*
@@ -2052,6 +2397,7 @@ 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},
+ {"Change Boot Order", eficonfig_process_change_boot_order},
{"Delete Boot Option", eficonfig_process_delete_boot_option},
{"Quit", eficonfig_process_quit},
};
--
2.17.1
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