[PATCH v4 07/11] bootmenu: add UEFI and disto_boot entries
Ilias Apalodimas
ilias.apalodimas at linaro.org
Fri Apr 1 08:08:46 CEST 2022
Hi Kojima-san,
[...]
> + entry->title = u16_strdup(lo.label);
> + if (!entry->title) {
> + free(load_option);
> + free(entry);
We need to free bootorder as well
> + return -ENOMEM;
> + }
> + entry->command = strdup("bootefi bootmgr");
> + sprintf(entry->key, "%d", i);
> + entry->num = i;
> + entry->menu = menu;
> + entry->type = BOOTMENU_TYPE_UEFI_BOOT_OPTION;
> + entry->bootorder = bootorder[j];
> + entry->next = NULL;
> +
> + if (!iter)
> + menu->first = entry;
> + else
> + iter->next = entry;
> +
> + iter = entry;
> + i++;
> + }
> +
> + free(load_option);
> +
> + if (i == MAX_COUNT - 1)
> + break;
> + }
> +
> + free(bootorder);
> + *index = i;
> + *current = iter;
> +
> + return 1;
> +}
> +
> +static int prepare_distro_boot_entry(struct bootmenu_data *menu,
> + struct bootmenu_entry **current,
> + unsigned short int *index)
> +{
> + char *p;
> + int len;
> + char *token;
> + char *boot_targets;
> + unsigned short int i = *index;
> + struct bootmenu_entry *entry = NULL;
> + struct bootmenu_entry *iter = *current;
> +
> + /* list the distro boot "boot_targets" */
> + boot_targets = env_get("boot_targets");
> + if (!boot_targets)
> + return -ENOENT;
> +
> + len = strlen(boot_targets);
> + p = calloc(1, len + 1);
> + strlcpy(p, boot_targets, len);
> +
> + token = strtok(p, " ");
> +
> + do {
> + u16 *buf;
> + char *command;
> + int command_size;
> +
> + entry = malloc(sizeof(struct bootmenu_entry));
> + if (!entry)
> + return -ENOMEM;
> +
> + len = strlen(token);
> + buf = calloc(1, (len + 1) * sizeof(u16));
> + entry->title = buf;
> + if (!entry->title) {
> + free(entry);
> + return -ENOMEM;
> + }
> + utf8_utf16_strncpy(&buf, token, len);
> + sprintf(entry->key, "%d", i);
> + entry->num = i;
> + entry->menu = menu;
> +
> + command_size = sizeof("run bootcmd_") + len;
> + command = calloc(1, command_size);
> + if (!command) {
> + free(entry->title);
> + free(entry);
> + return -ENOMEM;
We need to free p as well
> + }
> + snprintf(command, command_size, "run bootcmd_%s", token);
> + entry->command = command;
> + entry->type = BOOTMENU_TYPE_DISTRO_BOOT;
> entry->next = NULL;
>
> if (!iter)
> @@ -341,10 +512,59 @@ static struct bootmenu_data *bootmenu_create(int delay)
> iter->next = entry;
>
> iter = entry;
> - ++i;
> + i++;
>
> if (i == MAX_COUNT - 1)
> break;
> +
> + token = strtok(NULL, " ");
> + } while (token);
> +
> + free(p);
> + *index = i;
> + *current = iter;
> +
> + return 1;
> +}
> +
> +static struct bootmenu_data *bootmenu_create(int delay)
> +{
> + int ret;
> + unsigned short int i = 0;
> + struct bootmenu_data *menu;
> + struct bootmenu_entry *iter = NULL;
> + struct bootmenu_entry *entry;
> +
> + char *default_str;
> +
> + menu = malloc(sizeof(struct bootmenu_data));
> + if (!menu)
> + return NULL;
> +
> + menu->delay = delay;
> + menu->active = 0;
> + menu->first = NULL;
> +
> + default_str = env_get("bootmenu_default");
> + if (default_str)
> + menu->active = (int)simple_strtol(default_str, NULL, 10);
> +
> + ret = prepare_bootmenu_entry(menu, &iter, &i);
> + if (ret < 0)
> + goto cleanup;
> +
> + if (IS_ENABLED(CONFIG_CMD_BOOTEFI_BOOTMGR)) {
> + if (i < MAX_COUNT - 1) {
> + ret = prepare_uefi_bootorder_entry(menu, &iter, &i);
> + if (ret < 0 && ret != -ENOENT)
> + goto cleanup;
> + }
> + }
> +
> + if (i < MAX_COUNT - 1) {
> + ret = prepare_distro_boot_entry(menu, &iter, &i);
> + if (ret < 0 && ret != -ENOENT)
> + goto cleanup;
> }
>
> /* Add U-Boot console entry at the end */
> @@ -353,7 +573,12 @@ static struct bootmenu_data *bootmenu_create(int delay)
> if (!entry)
> goto cleanup;
>
> - entry->title = strdup("U-Boot console");
> + /* Add dummy entry if entering U-Boot console is disabled */
> + if (IS_ENABLED(CONFIG_CMD_BOOTMENU_ENTER_UBOOT_CONSOLE))
> + entry->title = u16_strdup(u"U-Boot console");
> + else
> + entry->title = u16_strdup(u"");
> +
> if (!entry->title) {
> free(entry);
> goto cleanup;
> @@ -370,6 +595,7 @@ static struct bootmenu_data *bootmenu_create(int delay)
>
> entry->num = i;
> entry->menu = menu;
> + entry->type = BOOTMENU_TYPE_NONE;
> entry->next = NULL;
>
> if (!iter)
> @@ -378,7 +604,7 @@ static struct bootmenu_data *bootmenu_create(int delay)
> iter->next = entry;
>
> iter = entry;
> - ++i;
> + i++;
> }
>
> menu->count = i;
> @@ -423,43 +649,73 @@ static void menu_display_statusline(struct menu *m)
> puts(ANSI_CLEAR_LINE);
> }
>
> -static void bootmenu_show(int delay)
> +static void handle_uefi_bootnext(void)
> {
> + u16 bootnext;
> + efi_status_t ret;
> + efi_uintn_t size;
> +
> + /* Initialize EFI drivers */
> + ret = efi_init_obj_list();
> + if (ret != EFI_SUCCESS) {
> + log_err("Error: Cannot initialize UEFI sub-system, r = %lu\n",
> + ret & ~EFI_ERROR_MASK);
> +
> + return;
> + }
> +
> + /* If UEFI BootNext variable is set, boot the BootNext load option */
> + size = sizeof(u16);
> + ret = efi_get_variable_int(u"BootNext",
> + &efi_global_variable_guid,
> + NULL, &size, &bootnext, NULL);
> + if (ret == EFI_SUCCESS)
> + /* BootNext does exist here, try to boot */
> + run_command("bootefi bootmgr", 0);
> +}
> +
> +static enum bootmenu_ret bootmenu_show(int delay)
> +{
> + int cmd_ret;
> int init = 0;
> void *choice = NULL;
> - char *title = NULL;
> + u16 *title = NULL;
> char *command = NULL;
> struct menu *menu;
> struct bootmenu_data *bootmenu;
> struct bootmenu_entry *iter;
> + efi_status_t efi_ret = EFI_SUCCESS;
> char *option, *sep;
>
> + if (IS_ENABLED(CONFIG_CMD_BOOTEFI_BOOTMGR))
> + handle_uefi_bootnext();
> +
> /* If delay is 0 do not create menu, just run first entry */
> if (delay == 0) {
> option = bootmenu_getoption(0);
> if (!option) {
> puts("bootmenu option 0 was not found\n");
> - return;
> + return BOOTMENU_RET_FAIL;
> }
> sep = strchr(option, '=');
> if (!sep) {
> puts("bootmenu option 0 is invalid\n");
> - return;
> + return BOOTMENU_RET_FAIL;
> }
> - run_command(sep+1, 0);
> - return;
> + cmd_ret = run_command(sep + 1, 0);
> + return (cmd_ret == CMD_RET_SUCCESS ? BOOTMENU_RET_SUCCESS : BOOTMENU_RET_FAIL);
> }
>
> bootmenu = bootmenu_create(delay);
> if (!bootmenu)
> - return;
> + return BOOTMENU_RET_FAIL;
>
> menu = menu_create(NULL, bootmenu->delay, 1, menu_display_statusline,
> bootmenu_print_entry, bootmenu_choice_entry,
> bootmenu);
> if (!menu) {
> bootmenu_destroy(bootmenu);
> - return;
> + return BOOTMENU_RET_FAIL;
> }
>
> for (iter = bootmenu->first; iter; iter = iter->next) {
> @@ -478,8 +734,33 @@ static void bootmenu_show(int delay)
>
> if (menu_get_choice(menu, &choice) == 1) {
> iter = choice;
> - title = strdup(iter->title);
> + /* last entry is U-Boot console or Quit */
> + if (iter->num == iter->menu->count - 1) {
> + menu_destroy(menu);
> + bootmenu_destroy(bootmenu);
> + return BOOTMENU_RET_QUIT;
> + }
> +
> + title = u16_strdup(iter->title);
> command = strdup(iter->command);
> + } else {
> + goto cleanup;
> + }
> +
> + /*
> + * If the selected entry is UEFI BOOT####, set the BootNext variable.
> + * Then uefi bootmgr is invoked by the preset command in iter->command.
> + */
> + if (IS_ENABLED(CONFIG_CMD_BOOTEFI_BOOTMGR)) {
> + if (iter->type == BOOTMENU_TYPE_UEFI_BOOT_OPTION) {
> + efi_ret = efi_set_variable_int(u"BootNext", &efi_global_variable_guid,
> + EFI_VARIABLE_NON_VOLATILE |
> + EFI_VARIABLE_BOOTSERVICE_ACCESS |
> + EFI_VARIABLE_RUNTIME_ACCESS,
> + sizeof(u16), &iter->bootorder, false);
> + if (efi_ret != EFI_SUCCESS)
> + goto cleanup;
> + }
> }
>
> cleanup:
> @@ -493,21 +774,47 @@ cleanup:
> }
>
> if (title && command) {
> - debug("Starting entry '%s'\n", title);
> + debug("Starting entry '%ls'\n", title);
> free(title);
> - run_command(command, 0);
> + if (efi_ret == EFI_SUCCESS)
> + cmd_ret = run_command(command, 0);
> free(command);
> }
>
> #ifdef CONFIG_POSTBOOTMENU
> run_command(CONFIG_POSTBOOTMENU, 0);
> #endif
> +
> + if (efi_ret == EFI_SUCCESS && cmd_ret == CMD_RET_SUCCESS)
> + return BOOTMENU_RET_SUCCESS;
> +
> + return BOOTMENU_RET_FAIL;
> }
>
> #ifdef CONFIG_AUTOBOOT_MENU_SHOW
> int menu_show(int bootdelay)
> {
> - bootmenu_show(bootdelay);
> + int ret;
> +
> + while (1) {
> + ret = bootmenu_show(bootdelay);
> + bootdelay = -1;
> + if (ret == BOOTMENU_RET_UPDATED)
> + continue;
> +
> + if (!IS_ENABLED(CONFIG_CMD_BOOTMENU_ENTER_UBOOT_CONSOLE)) {
> + if (ret == BOOTMENU_RET_QUIT) {
> + /* default boot process */
> + if (IS_ENABLED(CONFIG_CMD_BOOTEFI_BOOTMGR))
> + run_command("bootefi bootmgr", 0);
> +
> + run_command("run bootcmd", 0);
> + }
> + } else {
> + break;
> + }
> + }
> +
> return -1; /* -1 - abort boot and run monitor code */
> }
> #endif
> --
> 2.17.1
>
Thanks
/Ilias
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