diff options
Diffstat (limited to 'cmd/eficonfig.c')
-rw-r--r-- | cmd/eficonfig.c | 410 |
1 files changed, 7 insertions, 403 deletions
diff --git a/cmd/eficonfig.c b/cmd/eficonfig.c index 720f52b..e6e8a0a 100644 --- a/cmd/eficonfig.c +++ b/cmd/eficonfig.c @@ -1135,43 +1135,6 @@ out: } /** - * eficonfig_get_unused_bootoption() - get unused "Boot####" index - * - * @buf: pointer to the buffer to store boot option variable name - * @buf_size: buffer size - * @index: pointer to store the index in the BootOrder variable - * Return: status code - */ -efi_status_t eficonfig_get_unused_bootoption(u16 *buf, efi_uintn_t buf_size, - unsigned int *index) -{ - u32 i; - efi_status_t ret; - efi_uintn_t size; - - if (buf_size < u16_strsize(u"Boot####")) - return EFI_BUFFER_TOO_SMALL; - - for (i = 0; i <= 0xFFFF; i++) { - size = 0; - efi_create_indexed_name(buf, buf_size, "Boot", i); - ret = efi_get_variable_int(buf, &efi_global_variable_guid, - NULL, &size, NULL, NULL); - if (ret == EFI_BUFFER_TOO_SMALL) - continue; - else - break; - } - - if (i > 0xFFFF) - return EFI_OUT_OF_RESOURCES; - - *index = i; - - return EFI_SUCCESS; -} - -/** * eficonfig_set_boot_option() - set boot option * * @varname: pointer to variable name @@ -1209,46 +1172,6 @@ static efi_status_t eficonfig_set_boot_option(u16 *varname, struct efi_device_pa } /** - * eficonfig_append_bootorder() - append new boot option in BootOrder variable - * - * @index: "Boot####" index to append to BootOrder variable - * Return: status code - */ -efi_status_t eficonfig_append_bootorder(u16 index) -{ - u16 *bootorder; - efi_status_t ret; - u16 *new_bootorder = NULL; - efi_uintn_t last, size, new_size; - - /* append new boot option */ - bootorder = efi_get_var(u"BootOrder", &efi_global_variable_guid, &size); - last = size / sizeof(u16); - new_size = size + sizeof(u16); - new_bootorder = calloc(1, new_size); - if (!new_bootorder) { - ret = EFI_OUT_OF_RESOURCES; - goto out; - } - memcpy(new_bootorder, bootorder, size); - new_bootorder[last] = index; - - ret = efi_set_variable_int(u"BootOrder", &efi_global_variable_guid, - EFI_VARIABLE_NON_VOLATILE | - EFI_VARIABLE_BOOTSERVICE_ACCESS | - EFI_VARIABLE_RUNTIME_ACCESS, - new_size, new_bootorder, false); - if (ret != EFI_SUCCESS) - goto out; - -out: - free(bootorder); - free(new_bootorder); - - return ret; -} - -/** * create_boot_option_entry() - create boot option entry * * @efi_menu: pointer to the efimenu structure @@ -1619,7 +1542,7 @@ static efi_status_t eficonfig_process_add_boot_option(void *data) if (!bo) return EFI_OUT_OF_RESOURCES; - ret = eficonfig_get_unused_bootoption(varname, sizeof(varname), &bo->boot_index); + ret = efi_bootmgr_get_unused_bootoption(varname, sizeof(varname), &bo->boot_index); if (ret != EFI_SUCCESS) return ret; @@ -1627,7 +1550,7 @@ static efi_status_t eficonfig_process_add_boot_option(void *data) if (ret != EFI_SUCCESS) goto out; - ret = eficonfig_append_bootorder((u16)bo->boot_index); + ret = efi_bootmgr_append_bootorder((u16)bo->boot_index); if (ret != EFI_SUCCESS) goto out; @@ -1657,31 +1580,6 @@ static efi_status_t eficonfig_process_boot_selected(void *data) } /** - * search_bootorder() - search the boot option index in BootOrder - * - * @bootorder: pointer to the BootOrder variable - * @num: number of BootOrder entry - * @target: target boot option index to search - * @index: pointer to store the index of BootOrder variable - * Return: true if exists, false otherwise - */ -static bool search_bootorder(u16 *bootorder, efi_uintn_t num, u32 target, u32 *index) -{ - u32 i; - - for (i = 0; i < num; i++) { - if (target == bootorder[i]) { - if (index) - *index = i; - - return true; - } - } - - return false; -} - -/** * eficonfig_add_boot_selection_entry() - add boot option menu entry * * @efi_menu: pointer to store the efimenu structure @@ -1805,7 +1703,7 @@ static efi_status_t eficonfig_show_boot_selection(unsigned int *selected) if (efi_varname_is_load_option(var_name16, &index)) { /* If the index is included in the BootOrder, skip it */ - if (search_bootorder(bootorder, num, index, NULL)) + if (efi_search_bootorder(bootorder, num, index, NULL)) continue; ret = eficonfig_add_boot_selection_entry(efi_menu, index, selected); @@ -2202,7 +2100,7 @@ static efi_status_t eficonfig_create_change_boot_order_entry(struct efimenu *efi if (efi_varname_is_load_option(var_name16, &index)) { /* If the index is included in the BootOrder, skip it */ - if (search_bootorder(bootorder, num, index, NULL)) + if (efi_search_bootorder(bootorder, num, index, NULL)) continue; ret = eficonfig_add_change_boot_order_entry(efi_menu, index, false); @@ -2305,50 +2203,6 @@ out: } /** - * 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 @@ -2362,7 +2216,7 @@ static efi_status_t eficonfig_process_delete_boot_option(void *data) while (1) { ret = eficonfig_show_boot_selection(&selected); if (ret == EFI_SUCCESS) - ret = delete_boot_option(selected); + ret = efi_bootmgr_delete_boot_option(selected); if (ret != EFI_SUCCESS) break; @@ -2375,256 +2229,6 @@ static efi_status_t eficonfig_process_delete_boot_option(void *data) } /** - * eficonfig_enumerate_boot_option() - enumerate the possible bootable media - * - * @opt: pointer to the media boot option structure - * @volume_handles: pointer to the efi handles - * @count: number of efi handle - * Return: status code - */ -efi_status_t eficonfig_enumerate_boot_option(struct eficonfig_media_boot_option *opt, - efi_handle_t *volume_handles, efi_status_t count) -{ - u32 i; - struct efi_handler *handler; - efi_status_t ret = EFI_SUCCESS; - - for (i = 0; i < count; i++) { - u16 *p; - u16 dev_name[BOOTMENU_DEVICE_NAME_MAX]; - char *optional_data; - struct efi_load_option lo; - char buf[BOOTMENU_DEVICE_NAME_MAX]; - struct efi_device_path *device_path; - - ret = efi_search_protocol(volume_handles[i], &efi_guid_device_path, &handler); - if (ret != EFI_SUCCESS) - continue; - ret = efi_protocol_open(handler, (void **)&device_path, - efi_root, NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL); - if (ret != EFI_SUCCESS) - continue; - - ret = efi_disk_get_device_name(volume_handles[i], buf, BOOTMENU_DEVICE_NAME_MAX); - if (ret != EFI_SUCCESS) - continue; - - p = dev_name; - utf8_utf16_strncpy(&p, buf, strlen(buf)); - - lo.label = dev_name; - lo.attributes = LOAD_OPTION_ACTIVE; - lo.file_path = device_path; - lo.file_path_length = efi_dp_size(device_path) + sizeof(END); - /* - * Set the dedicated guid to optional_data, it is used to identify - * the boot option that automatically generated by the bootmenu. - * efi_serialize_load_option() expects optional_data is null-terminated - * utf8 string, so set the "1234567" string to allocate enough space - * to store guid, instead of realloc the load_option. - */ - lo.optional_data = "1234567"; - opt[i].size = efi_serialize_load_option(&lo, (u8 **)&opt[i].lo); - if (!opt[i].size) { - ret = EFI_OUT_OF_RESOURCES; - goto out; - } - /* set the guid */ - optional_data = (char *)opt[i].lo + (opt[i].size - u16_strsize(u"1234567")); - memcpy(optional_data, &efi_guid_bootmenu_auto_generated, sizeof(efi_guid_t)); - } - -out: - return ret; -} - -/** - * eficonfig_delete_invalid_boot_option() - delete non-existing boot option - * - * @opt: pointer to the media boot option structure - * @count: number of media boot option structure - * Return: status code - */ -efi_status_t eficonfig_delete_invalid_boot_option(struct eficonfig_media_boot_option *opt, - efi_status_t count) -{ - efi_uintn_t size; - void *load_option; - u32 i, list_size = 0; - struct efi_load_option lo; - u16 *var_name16 = NULL; - u16 varname[] = u"Boot####"; - efi_status_t ret = EFI_SUCCESS; - u16 *delete_index_list = NULL, *p; - efi_uintn_t buf_size; - - buf_size = 128; - var_name16 = malloc(buf_size); - if (!var_name16) - return EFI_OUT_OF_RESOURCES; - - var_name16[0] = 0; - for (;;) { - int index; - efi_guid_t guid; - efi_uintn_t tmp; - - ret = efi_next_variable_name(&buf_size, &var_name16, &guid); - if (ret == EFI_NOT_FOUND) { - /* - * EFI_NOT_FOUND indicates we retrieved all EFI variables. - * This should be treated as success. - */ - ret = EFI_SUCCESS; - break; - } - if (ret != EFI_SUCCESS) - goto out; - - if (!efi_varname_is_load_option(var_name16, &index)) - continue; - - efi_create_indexed_name(varname, sizeof(varname), "Boot", index); - load_option = efi_get_var(varname, &efi_global_variable_guid, &size); - if (!load_option) - continue; - - tmp = size; - ret = efi_deserialize_load_option(&lo, load_option, &size); - if (ret != EFI_SUCCESS) - goto next; - - if (size >= sizeof(efi_guid_bootmenu_auto_generated) && - !guidcmp(lo.optional_data, &efi_guid_bootmenu_auto_generated)) { - for (i = 0; i < count; i++) { - if (opt[i].size == tmp && - memcmp(opt[i].lo, load_option, tmp) == 0) { - opt[i].exist = true; - break; - } - } - - /* - * The entire list of variables must be retrieved by - * efi_get_next_variable_name_int() before deleting the invalid - * boot option, just save the index here. - */ - if (i == count) { - p = realloc(delete_index_list, sizeof(u32) * - (list_size + 1)); - if (!p) { - ret = EFI_OUT_OF_RESOURCES; - goto out; - } - delete_index_list = p; - delete_index_list[list_size++] = index; - } - } -next: - free(load_option); - } - - /* delete all invalid boot options */ - for (i = 0; i < list_size; i++) { - ret = delete_boot_option(delete_index_list[i]); - if (ret != EFI_SUCCESS) - goto out; - } - -out: - free(var_name16); - free(delete_index_list); - - return ret; -} - -/** - * eficonfig_generate_media_device_boot_option() - generate the media device boot option - * - * This function enumerates all devices supporting EFI_SIMPLE_FILE_SYSTEM_PROTOCOL - * and generate the bootmenu entries. - * This function also provide the BOOT#### variable maintenance for - * the media device entries. - * - Automatically create the BOOT#### variable for the newly detected device, - * this BOOT#### variable is distinguished by the special GUID - * stored in the EFI_LOAD_OPTION.optional_data - * - If the device is not attached to the system, the associated BOOT#### variable - * is automatically deleted. - * - * Return: status code - */ -efi_status_t eficonfig_generate_media_device_boot_option(void) -{ - u32 i; - efi_status_t ret; - efi_uintn_t count; - efi_handle_t *volume_handles = NULL; - struct eficonfig_media_boot_option *opt = NULL; - - ret = efi_locate_handle_buffer_int(BY_PROTOCOL, &efi_simple_file_system_protocol_guid, - NULL, &count, (efi_handle_t **)&volume_handles); - if (ret != EFI_SUCCESS) - return ret; - - opt = calloc(count, sizeof(struct eficonfig_media_boot_option)); - if (!opt) - goto out; - - /* enumerate all devices supporting EFI_SIMPLE_FILE_SYSTEM_PROTOCOL */ - ret = eficonfig_enumerate_boot_option(opt, volume_handles, count); - if (ret != EFI_SUCCESS) - goto out; - - /* - * System hardware configuration may vary depending on the user setup. - * The boot option is automatically added by the bootmenu. - * If the device is not attached to the system, the boot option needs - * to be deleted. - */ - ret = eficonfig_delete_invalid_boot_option(opt, count); - if (ret != EFI_SUCCESS) - goto out; - - /* add non-existent boot option */ - for (i = 0; i < count; i++) { - u32 boot_index; - u16 var_name[9]; - - if (!opt[i].exist) { - ret = eficonfig_get_unused_bootoption(var_name, sizeof(var_name), - &boot_index); - if (ret != EFI_SUCCESS) - goto out; - - ret = efi_set_variable_int(var_name, &efi_global_variable_guid, - EFI_VARIABLE_NON_VOLATILE | - EFI_VARIABLE_BOOTSERVICE_ACCESS | - EFI_VARIABLE_RUNTIME_ACCESS, - opt[i].size, opt[i].lo, false); - if (ret != EFI_SUCCESS) - goto out; - - ret = eficonfig_append_bootorder(boot_index); - if (ret != EFI_SUCCESS) { - efi_set_variable_int(var_name, &efi_global_variable_guid, - 0, 0, NULL, false); - goto out; - } - } - } - -out: - if (opt) { - for (i = 0; i < count; i++) - free(opt[i].lo); - } - free(opt); - efi_free_pool(volume_handles); - - return ret; -} - -/** * eficonfig_init() - do required initialization for eficonfig command * * Return: status code @@ -2709,8 +2313,8 @@ static int do_eficonfig(struct cmd_tbl *cmdtp, int flag, int argc, char *const a if (ret != EFI_SUCCESS) return CMD_RET_FAILURE; - ret = eficonfig_generate_media_device_boot_option(); - if (ret != EFI_SUCCESS && ret != EFI_NOT_FOUND) + ret = efi_bootmgr_update_media_device_boot_option(); + if (ret != EFI_SUCCESS) return ret; while (1) { |