41  * Description: Change the BIOS setting to the desired value using the SetBiosSetting
107  *  This is particularly useful for simplifying setting passwords.
333 static int tlmi_opcode_setting(char *setting, const char *value)  in tlmi_opcode_setting()  argument
338 	opcode_str = kasprintf(GFP_KERNEL, "%s:%s;", setting, value);  in tlmi_opcode_setting()
389 	struct tlmi_pwd_setting *setting = to_tlmi_pwd_setting(kobj);  in is_enabled_show()  local
391 	return sysfs_emit(buf, "%d\n", setting->pwd_enabled || setting->cert_installed);  in is_enabled_show()
400 	struct tlmi_pwd_setting *setting = to_tlmi_pwd_setting(kobj);  in current_password_store()  local
405 	if (pwdlen && ((pwdlen < setting->minlen) || (pwdlen > setting->maxlen)))  in current_password_store()
408 	strscpy(setting->password, buf, setting->maxlen);  in current_password_store()
409 	/* Strip out CR if one is present, setting password won't work if it is present */  in current_password_store()
410 	strreplace(setting->password, '\n', '\0');  in current_password_store()
420 	struct tlmi_pwd_setting *setting = to_tlmi_pwd_setting(kobj);  in new_password_store()  local
431 	/* Strip out CR if one is present, setting password won't work if it is present */  in new_password_store()
441 	if (pwdlen && ((pwdlen < setting->minlen) || (pwdlen > setting->maxlen))) {  in new_password_store()
451 		if (setting == tlmi_priv.pwd_hdd) {  in new_password_store()
452 			if (setting->level == TLMI_LEVEL_USER)  in new_password_store()
453 				sprintf(pwd_type, "uhdp%d", setting->index);  in new_password_store()
455 				sprintf(pwd_type, "mhdp%d", setting->index);  in new_password_store()
456 		} else if (setting == tlmi_priv.pwd_nvme) {  in new_password_store()
457 			if (setting->level == TLMI_LEVEL_USER)  in new_password_store()
458 				sprintf(pwd_type, "udrp%d", setting->index);  in new_password_store()
460 				sprintf(pwd_type, "adrp%d", setting->index);  in new_password_store()
462 			sprintf(pwd_type, "%s", setting->pwd_type);  in new_password_store()
480 		ret = tlmi_opcode_setting("WmiOpcodePasswordCurrent01", setting->password);  in new_password_store()
490 				setting->pwd_type, setting->password, new_pwd,  in new_password_store()
491 				encoding_options[setting->encoding], setting->kbdlang);  in new_password_store()
510 	struct tlmi_pwd_setting *setting = to_tlmi_pwd_setting(kobj);  in min_password_length_show()  local
512 	return sysfs_emit(buf, "%d\n", setting->minlen);  in min_password_length_show()
520 	struct tlmi_pwd_setting *setting = to_tlmi_pwd_setting(kobj);  in max_password_length_show()  local
522 	return sysfs_emit(buf, "%d\n", setting->maxlen);  in max_password_length_show()
529 	struct tlmi_pwd_setting *setting = to_tlmi_pwd_setting(kobj);  in mechanism_show()  local
531 	if (setting->cert_installed)  in mechanism_show()
540 	struct tlmi_pwd_setting *setting = to_tlmi_pwd_setting(kobj);  in encoding_show()  local
542 	return sysfs_emit(buf, "%s\n", encoding_options[setting->encoding]);  in encoding_show()
549 	struct tlmi_pwd_setting *setting = to_tlmi_pwd_setting(kobj);  in encoding_store()  local
557 	setting->encoding = i;  in encoding_store()
566 	struct tlmi_pwd_setting *setting = to_tlmi_pwd_setting(kobj);  in kbdlang_show()  local
568 	return sysfs_emit(buf, "%s\n", setting->kbdlang);  in kbdlang_show()
575 	struct tlmi_pwd_setting *setting = to_tlmi_pwd_setting(kobj);  in kbdlang_store()  local
583 	memcpy(setting->kbdlang, buf, length);  in kbdlang_store()
584 	setting->kbdlang[length] = '\0';  in kbdlang_store()
593 	struct tlmi_pwd_setting *setting = to_tlmi_pwd_setting(kobj);  in role_show()  local
595 	return sysfs_emit(buf, "%s\n", setting->role);  in role_show()
602 	struct tlmi_pwd_setting *setting = to_tlmi_pwd_setting(kobj);  in index_show()  local
604 	return sysfs_emit(buf, "%d\n", setting->index);  in index_show()
611 	struct tlmi_pwd_setting *setting = to_tlmi_pwd_setting(kobj);  in index_store()  local
621 	setting->index = val;  in index_store()
630 	struct tlmi_pwd_setting *setting = to_tlmi_pwd_setting(kobj);  in level_show()  local
632 	return sysfs_emit(buf, "%s\n", level_options[setting->level]);  in level_show()
639 	struct tlmi_pwd_setting *setting = to_tlmi_pwd_setting(kobj);  in level_store()  local
647 	setting->level = i;  in level_store()
653 static char *cert_command(struct tlmi_pwd_setting *setting, const char *arg1, const char *arg2)  in cert_command()  argument
658 				 setting == tlmi_priv.pwd_admin ? "SVC" : "SMC",  in cert_command()
694 	struct tlmi_pwd_setting *setting = to_tlmi_pwd_setting(kobj);  in certificate_thumbprint_show()  local
699 	if (!tlmi_priv.certificate_support || !setting->cert_installed)  in certificate_thumbprint_show()
706 					   setting == tlmi_priv.pwd_admin ? "SVC" : "SMC",  in certificate_thumbprint_show()
727 	struct tlmi_pwd_setting *setting = to_tlmi_pwd_setting(kobj);  in cert_to_password_store()  local
737 	if (!setting->cert_installed)  in cert_to_password_store()
740 	if (!setting->signature || !setting->signature[0])  in cert_to_password_store()
749 	auth_str = cert_command(setting, passwd, setting->signature);  in cert_to_password_store()
772 	struct tlmi_pwd_setting *setting = to_tlmi_pwd_setting(kobj);  in certificate_store()  local
788 		if (!setting->signature || !setting->signature[0])  in certificate_store()
792 		auth_str = cert_command(setting,  in certificate_store()
794 					setting->signature);  in certificate_store()
809 	if (setting->cert_installed) {  in certificate_store()
816 			signature = setting->signature;  in certificate_store()
819 		if ((setting == tlmi_priv.pwd_system) && tlmi_priv.pwd_admin->cert_installed) {  in certificate_store()
825 			signature = setting->signature;  in certificate_store()
837 		auth_str = cert_command(setting, new_cert, signature);  in certificate_store()
841 		if ((setting == tlmi_priv.pwd_admin) &&  in certificate_store()
842 		    (!setting->pwd_enabled || !setting->password[0])) {  in certificate_store()
848 		auth_str = cert_command(setting, new_cert, setting->password);  in certificate_store()
866 	struct tlmi_pwd_setting *setting = to_tlmi_pwd_setting(kobj);  in signature_store()  local
881 	kfree(setting->signature);  in signature_store()
882 	setting->signature = new_signature;  in signature_store()
893 	struct tlmi_pwd_setting *setting = to_tlmi_pwd_setting(kobj);  in save_signature_store()  local
908 	kfree(setting->save_signature);  in save_signature_store()
909 	setting->save_signature = new_signature;  in save_signature_store()
919 	struct tlmi_pwd_setting *setting = to_tlmi_pwd_setting(kobj);  in auth_attr_is_visible()  local
923 		if ((setting == tlmi_priv.pwd_hdd) || (setting == tlmi_priv.pwd_nvme))  in auth_attr_is_visible()
935 			if (setting == tlmi_priv.pwd_admin)  in auth_attr_is_visible()
938 			    (setting == tlmi_priv.pwd_system))  in auth_attr_is_visible()
981 	struct tlmi_attr_setting *setting = to_tlmi_attr_setting(kobj);  in display_name_show()  local
983 	return sysfs_emit(buf, "%s\n", setting->display_name);  in display_name_show()
988 	struct tlmi_attr_setting *setting = to_tlmi_attr_setting(kobj);  in current_value_show()  local
992 	ret = tlmi_setting(setting->wdev, setting->index, &item);  in current_value_show()
1012 	struct tlmi_attr_setting *setting = to_tlmi_attr_setting(kobj);  in possible_values_show()  local
1014 	return sysfs_emit(buf, "%s\n", setting->possible_values);  in possible_values_show()
1020 	struct tlmi_attr_setting *setting = to_tlmi_attr_setting(kobj);  in type_show()  local
1022 	if (setting->possible_values) {  in type_show()
1023 		/* Figure out what setting type is as BIOS does not return this */  in type_show()
1024 		if (strchr(setting->possible_values, ';'))  in type_show()
1035 	struct tlmi_attr_setting *setting = to_tlmi_attr_setting(kobj);  in current_value_store()  local
1064 		set_str = kasprintf(GFP_KERNEL, "%s,%s,%s", setting->name,  in current_value_store()
1095 		set_str = kasprintf(GFP_KERNEL, "%s,%s;", setting->name,  in current_value_store()
1123 			set_str = kasprintf(GFP_KERNEL, "%s,%s,%s", setting->name,  in current_value_store()
1126 			set_str = kasprintf(GFP_KERNEL, "%s,%s;", setting->name,  in current_value_store()
1170 	struct tlmi_attr_setting *setting = to_tlmi_attr_setting(kobj);  in attr_is_visible()  local
1173 	if ((attr == &attr_possible_values.attr) && (!setting->possible_values))  in attr_is_visible()
1194 	struct tlmi_attr_setting *setting = to_tlmi_attr_setting(kobj);  in tlmi_attr_setting_release()  local
1196 	kfree(setting->possible_values);  in tlmi_attr_setting_release()
1197 	kfree(setting);  in tlmi_attr_setting_release()
1202 	struct tlmi_pwd_setting *setting = to_tlmi_pwd_setting(kobj);  in tlmi_pwd_setting_release()  local
1204 	kfree(setting);  in tlmi_pwd_setting_release()
1234 	/* Check that setting is valid */  in save_settings_show()
1387 		if (tlmi_priv.setting[i]) {  in tlmi_release_attr()
1388 			sysfs_remove_group(&tlmi_priv.setting[i]->kobj, &tlmi_attr_group);  in tlmi_release_attr()
1389 			kobject_put(&tlmi_priv.setting[i]->kobj);  in tlmi_release_attr()
1459 		/* Check if index is a valid setting - skip if it isn't */  in tlmi_sysfs_init()
1460 		if (!tlmi_priv.setting[i])  in tlmi_sysfs_init()
1465 					       tlmi_priv.setting[i]->display_name) < 0) {  in tlmi_sysfs_init()
1466 			kfree(tlmi_priv.setting[i]->possible_values);  in tlmi_sysfs_init()
1467 			kfree(tlmi_priv.setting[i]);  in tlmi_sysfs_init()
1468 			tlmi_priv.setting[i] = NULL;  in tlmi_sysfs_init()
1473 		tlmi_priv.setting[i]->kobj.kset = tlmi_priv.attribute_kset;  in tlmi_sysfs_init()
1474 		ret = kobject_add(&tlmi_priv.setting[i]->kobj, NULL,  in tlmi_sysfs_init()
1475 				  "%s", tlmi_priv.setting[i]->display_name);  in tlmi_sysfs_init()
1479 		ret = sysfs_create_group(&tlmi_priv.setting[i]->kobj, &tlmi_attr_group);  in tlmi_sysfs_init()
1618 		struct tlmi_attr_setting *setting;  in tlmi_analyze()  local
1621 		tlmi_priv.setting[i] = NULL;  in tlmi_analyze()
1635 		/* Create a setting entry */  in tlmi_analyze()
1636 		setting = kzalloc(sizeof(*setting), GFP_KERNEL);  in tlmi_analyze()
1637 		if (!setting) {  in tlmi_analyze()
1642 		setting->wdev = wdev;  in tlmi_analyze()
1643 		setting->index = i;  in tlmi_analyze()
1645 		strscpy(setting->name, item);  in tlmi_analyze()
1648 		strscpy(setting->display_name, item);  in tlmi_analyze()
1652 			ret = tlmi_get_bios_selections(setting->name,  in tlmi_analyze()
1653 						       &setting->possible_values);  in tlmi_analyze()
1654 			if (ret || !setting->possible_values)  in tlmi_analyze()
1656 						i, setting->display_name);  in tlmi_analyze()
1666 			if (!tlmi_setting(setting->wdev, setting->index, &optitem)) {  in tlmi_analyze()
1672 						setting->possible_values =  in tlmi_analyze()
1683 		if (setting->possible_values)  in tlmi_analyze()
1684 			strreplace(setting->possible_values, ',', ';');  in tlmi_analyze()
1686 		kobject_init(&setting->kobj, &tlmi_attr_setting_ktype);  in tlmi_analyze()
1687 		tlmi_priv.setting[i] = setting;  in tlmi_analyze()
1691 	/* Create password setting structure */  in tlmi_analyze()
1768 		if (tlmi_priv.setting[i]) {  in tlmi_analyze()
1769 			kfree(tlmi_priv.setting[i]->possible_values);  in tlmi_analyze()
1770 			kfree(tlmi_priv.setting[i]);  in tlmi_analyze()