78 static const char *ovl_uuid_mode(struct ovl_config *config)  in ovl_uuid_mode()  argument
80 	return ovl_parameter_uuid[config->uuid].name;  in ovl_uuid_mode()
95 const char *ovl_xino_mode(struct ovl_config *config)  in ovl_xino_mode()  argument
97 	return ovl_parameter_xino[config->xino].name;  in ovl_xino_mode()
113 static const char *ovl_redirect_mode(struct ovl_config *config)  in ovl_redirect_mode()  argument
115 	return ovl_parameter_redirect_dir[config->redirect_mode].name;  in ovl_redirect_mode()
132 static const char *ovl_verity_mode(struct ovl_config *config)  in ovl_verity_mode()  argument
134 	return ovl_parameter_verity[config->verity_mode].name;  in ovl_verity_mode()
340 	struct ovl_config *config = &ofs->config;  in ovl_add_layer()  local
346 		swap(config->workdir, *pname);  in ovl_add_layer()
350 		swap(config->upperdir, *pname);  in ovl_add_layer()
523 	struct ovl_config *config = &ofs->config;  in ovl_parse_param()  local
561 		config->default_permissions = true;  in ovl_parse_param()
564 		config->redirect_mode = result.uint_32;  in ovl_parse_param()
565 		if (config->redirect_mode == OVL_REDIRECT_OFF) {  in ovl_parse_param()
566 			config->redirect_mode = ovl_redirect_always_follow ?  in ovl_parse_param()
573 		config->index = result.uint_32;  in ovl_parse_param()
577 		config->uuid = result.uint_32;  in ovl_parse_param()
580 		config->nfs_export = result.uint_32;  in ovl_parse_param()
584 		config->xino = result.uint_32;  in ovl_parse_param()
587 		config->metacopy = result.uint_32;  in ovl_parse_param()
591 		config->verity_mode = result.uint_32;  in ovl_parse_param()
594 		config->ovl_volatile = true;  in ovl_parse_param()
597 		config->userxattr = true;  in ovl_parse_param()
699 	ofs->config.redirect_mode	= ovl_redirect_mode_def();  in ovl_init_fs_context()
700 	ofs->config.index		= ovl_index_def;  in ovl_init_fs_context()
701 	ofs->config.uuid		= ovl_uuid_def();  in ovl_init_fs_context()
702 	ofs->config.nfs_export		= ovl_nfs_export_def;  in ovl_init_fs_context()
703 	ofs->config.xino		= ovl_xino_def();  in ovl_init_fs_context()
704 	ofs->config.metacopy		= ovl_metacopy_def;  in ovl_init_fs_context()
733 	mounts = (struct vfsmount **) ofs->config.lowerdirs;  in ovl_free_fs()
736 		kfree(ofs->config.lowerdirs[i]);  in ovl_free_fs()
745 	kfree(ofs->config.lowerdirs);  in ovl_free_fs()
746 	kfree(ofs->config.upperdir);  in ovl_free_fs()
747 	kfree(ofs->config.workdir);  in ovl_free_fs()
754 			 struct ovl_config *config)  in ovl_fs_params_verify()  argument
759 	if (!config->upperdir) {  in ovl_fs_params_verify()
760 		if (config->workdir) {  in ovl_fs_params_verify()
762 				config->workdir);  in ovl_fs_params_verify()
763 			kfree(config->workdir);  in ovl_fs_params_verify()
764 			config->workdir = NULL;  in ovl_fs_params_verify()
766 		if (config->index && set.index) {  in ovl_fs_params_verify()
770 		config->index = false;  in ovl_fs_params_verify()
773 	if (!config->upperdir && config->ovl_volatile) {  in ovl_fs_params_verify()
775 		config->ovl_volatile = false;  in ovl_fs_params_verify()
778 	if (!config->upperdir && config->uuid == OVL_UUID_ON) {  in ovl_fs_params_verify()
780 		config->uuid = OVL_UUID_NULL;  in ovl_fs_params_verify()
784 	if (config->verity_mode && !config->metacopy) {  in ovl_fs_params_verify()
788 			       ovl_verity_mode(config));  in ovl_fs_params_verify()
792 		config->metacopy = true;  in ovl_fs_params_verify()
799 	if (!config->upperdir && config->redirect_mode == OVL_REDIRECT_FOLLOW)  in ovl_fs_params_verify()
800 		config->redirect_mode = OVL_REDIRECT_ON;  in ovl_fs_params_verify()
803 	if (config->metacopy && config->redirect_mode != OVL_REDIRECT_ON) {  in ovl_fs_params_verify()
806 			       ovl_redirect_mode(config));  in ovl_fs_params_verify()
809 		if (config->verity_mode && set.redirect) {  in ovl_fs_params_verify()
811 			       ovl_verity_mode(config), ovl_redirect_mode(config));  in ovl_fs_params_verify()
820 				ovl_redirect_mode(config));  in ovl_fs_params_verify()
821 			config->metacopy = false;  in ovl_fs_params_verify()
824 			config->redirect_mode = OVL_REDIRECT_ON;  in ovl_fs_params_verify()
829 	if (config->nfs_export && !config->index) {  in ovl_fs_params_verify()
830 		if (!config->upperdir &&  in ovl_fs_params_verify()
831 		    config->redirect_mode != OVL_REDIRECT_NOFOLLOW) {  in ovl_fs_params_verify()
833 			config->nfs_export = false;  in ovl_fs_params_verify()
843 			config->nfs_export = false;  in ovl_fs_params_verify()
846 			config->index = true;  in ovl_fs_params_verify()
851 	if (config->nfs_export && config->metacopy) {  in ovl_fs_params_verify()
862 			config->nfs_export = false;  in ovl_fs_params_verify()
863 		} else if (config->verity_mode) {  in ovl_fs_params_verify()
869 				ovl_verity_mode(config));  in ovl_fs_params_verify()
870 			config->nfs_export = false;  in ovl_fs_params_verify()
877 			config->metacopy = false;  in ovl_fs_params_verify()
883 	if (config->userxattr) {  in ovl_fs_params_verify()
885 		    config->redirect_mode != OVL_REDIRECT_NOFOLLOW) {  in ovl_fs_params_verify()
887 			       ovl_redirect_mode(config));  in ovl_fs_params_verify()
890 		if (config->metacopy && set.metacopy) {  in ovl_fs_params_verify()
894 		if (config->verity_mode) {  in ovl_fs_params_verify()
896 			       ovl_verity_mode(config));  in ovl_fs_params_verify()
905 		config->redirect_mode = OVL_REDIRECT_NOFOLLOW;  in ovl_fs_params_verify()
906 		config->metacopy = false;  in ovl_fs_params_verify()
913 	if (!config->userxattr && !capable(CAP_SYS_ADMIN)) {  in ovl_fs_params_verify()
915 		    config->redirect_mode != OVL_REDIRECT_NOFOLLOW) {  in ovl_fs_params_verify()
919 		if (config->metacopy && set.metacopy) {  in ovl_fs_params_verify()
923 		if (config->verity_mode) {  in ovl_fs_params_verify()
937 	if (ctx->nr_data > 0 && !config->metacopy) {  in ovl_fs_params_verify()
958 	char **lowerdirs = ofs->config.lowerdirs;  in ovl_show_options()
980 	if (ofs->config.upperdir) {  in ovl_show_options()
981 		seq_show_option(m, "upperdir", ofs->config.upperdir);  in ovl_show_options()
982 		seq_show_option(m, "workdir", ofs->config.workdir);  in ovl_show_options()
984 	if (ofs->config.default_permissions)  in ovl_show_options()
986 	if (ofs->config.redirect_mode != ovl_redirect_mode_def())  in ovl_show_options()
988 			   ovl_redirect_mode(&ofs->config));  in ovl_show_options()
989 	if (ofs->config.index != ovl_index_def)  in ovl_show_options()
990 		seq_printf(m, ",index=%s", ofs->config.index ? "on" : "off");  in ovl_show_options()
991 	if (ofs->config.uuid != ovl_uuid_def())  in ovl_show_options()
992 		seq_printf(m, ",uuid=%s", ovl_uuid_mode(&ofs->config));  in ovl_show_options()
993 	if (ofs->config.nfs_export != ovl_nfs_export_def)  in ovl_show_options()
994 		seq_printf(m, ",nfs_export=%s", ofs->config.nfs_export ?  in ovl_show_options()
996 	if (ofs->config.xino != ovl_xino_def() && !ovl_same_fs(ofs))  in ovl_show_options()
997 		seq_printf(m, ",xino=%s", ovl_xino_mode(&ofs->config));  in ovl_show_options()
998 	if (ofs->config.metacopy != ovl_metacopy_def)  in ovl_show_options()
1000 			   ofs->config.metacopy ? "on" : "off");  in ovl_show_options()
1001 	if (ofs->config.ovl_volatile)  in ovl_show_options()
1003 	if (ofs->config.userxattr)  in ovl_show_options()
1005 	if (ofs->config.verity_mode != ovl_verity_mode_def())  in ovl_show_options()
1007 			   ovl_verity_mode(&ofs->config));  in ovl_show_options()