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()
589 	struct ovl_config *config = &ofs->config;  in ovl_parse_param()  local
627 		config->default_permissions = true;  in ovl_parse_param()
630 		config->redirect_mode = result.uint_32;  in ovl_parse_param()
631 		if (config->redirect_mode == OVL_REDIRECT_OFF) {  in ovl_parse_param()
632 			config->redirect_mode = ovl_redirect_always_follow ?  in ovl_parse_param()
639 		config->index = result.uint_32;  in ovl_parse_param()
643 		config->uuid = result.uint_32;  in ovl_parse_param()
646 		config->nfs_export = result.uint_32;  in ovl_parse_param()
650 		config->xino = result.uint_32;  in ovl_parse_param()
653 		config->metacopy = result.uint_32;  in ovl_parse_param()
657 		config->verity_mode = result.uint_32;  in ovl_parse_param()
660 		config->ovl_volatile = true;  in ovl_parse_param()
663 		config->userxattr = true;  in ovl_parse_param()
765 	ofs->config.redirect_mode	= ovl_redirect_mode_def();  in ovl_init_fs_context()
766 	ofs->config.index		= ovl_index_def;  in ovl_init_fs_context()
767 	ofs->config.uuid		= ovl_uuid_def();  in ovl_init_fs_context()
768 	ofs->config.nfs_export		= ovl_nfs_export_def;  in ovl_init_fs_context()
769 	ofs->config.xino		= ovl_xino_def();  in ovl_init_fs_context()
770 	ofs->config.metacopy		= ovl_metacopy_def;  in ovl_init_fs_context()
799 	mounts = (struct vfsmount **) ofs->config.lowerdirs;  in ovl_free_fs()
802 		kfree(ofs->config.lowerdirs[i]);  in ovl_free_fs()
811 	kfree(ofs->config.lowerdirs);  in ovl_free_fs()
812 	kfree(ofs->config.upperdir);  in ovl_free_fs()
813 	kfree(ofs->config.workdir);  in ovl_free_fs()
820 			 struct ovl_config *config)  in ovl_fs_params_verify()  argument
825 	if (!config->upperdir) {  in ovl_fs_params_verify()
826 		if (config->workdir) {  in ovl_fs_params_verify()
828 				config->workdir);  in ovl_fs_params_verify()
829 			kfree(config->workdir);  in ovl_fs_params_verify()
830 			config->workdir = NULL;  in ovl_fs_params_verify()
832 		if (config->index && set.index) {  in ovl_fs_params_verify()
836 		config->index = false;  in ovl_fs_params_verify()
839 	if (!config->upperdir && config->ovl_volatile) {  in ovl_fs_params_verify()
841 		config->ovl_volatile = false;  in ovl_fs_params_verify()
844 	if (!config->upperdir && config->uuid == OVL_UUID_ON) {  in ovl_fs_params_verify()
846 		config->uuid = OVL_UUID_NULL;  in ovl_fs_params_verify()
850 	if (config->verity_mode && !config->metacopy) {  in ovl_fs_params_verify()
854 			       ovl_verity_mode(config));  in ovl_fs_params_verify()
858 		config->metacopy = true;  in ovl_fs_params_verify()
865 	if (!config->upperdir && config->redirect_mode == OVL_REDIRECT_FOLLOW)  in ovl_fs_params_verify()
866 		config->redirect_mode = OVL_REDIRECT_ON;  in ovl_fs_params_verify()
869 	if (config->metacopy && config->redirect_mode != OVL_REDIRECT_ON) {  in ovl_fs_params_verify()
872 			       ovl_redirect_mode(config));  in ovl_fs_params_verify()
875 		if (config->verity_mode && set.redirect) {  in ovl_fs_params_verify()
877 			       ovl_verity_mode(config), ovl_redirect_mode(config));  in ovl_fs_params_verify()
886 				ovl_redirect_mode(config));  in ovl_fs_params_verify()
887 			config->metacopy = false;  in ovl_fs_params_verify()
890 			config->redirect_mode = OVL_REDIRECT_ON;  in ovl_fs_params_verify()
895 	if (config->nfs_export && !config->index) {  in ovl_fs_params_verify()
896 		if (!config->upperdir &&  in ovl_fs_params_verify()
897 		    config->redirect_mode != OVL_REDIRECT_NOFOLLOW) {  in ovl_fs_params_verify()
899 			config->nfs_export = false;  in ovl_fs_params_verify()
909 			config->nfs_export = false;  in ovl_fs_params_verify()
912 			config->index = true;  in ovl_fs_params_verify()
917 	if (config->nfs_export && config->metacopy) {  in ovl_fs_params_verify()
928 			config->nfs_export = false;  in ovl_fs_params_verify()
929 		} else if (config->verity_mode) {  in ovl_fs_params_verify()
935 				ovl_verity_mode(config));  in ovl_fs_params_verify()
936 			config->nfs_export = false;  in ovl_fs_params_verify()
943 			config->metacopy = false;  in ovl_fs_params_verify()
949 	if (config->userxattr) {  in ovl_fs_params_verify()
951 		    config->redirect_mode != OVL_REDIRECT_NOFOLLOW) {  in ovl_fs_params_verify()
953 			       ovl_redirect_mode(config));  in ovl_fs_params_verify()
956 		if (config->metacopy && set.metacopy) {  in ovl_fs_params_verify()
960 		if (config->verity_mode) {  in ovl_fs_params_verify()
962 			       ovl_verity_mode(config));  in ovl_fs_params_verify()
971 		config->redirect_mode = OVL_REDIRECT_NOFOLLOW;  in ovl_fs_params_verify()
972 		config->metacopy = false;  in ovl_fs_params_verify()
979 	if (!config->userxattr && !capable(CAP_SYS_ADMIN)) {  in ovl_fs_params_verify()
981 		    config->redirect_mode != OVL_REDIRECT_NOFOLLOW) {  in ovl_fs_params_verify()
985 		if (config->metacopy && set.metacopy) {  in ovl_fs_params_verify()
989 		if (config->verity_mode) {  in ovl_fs_params_verify()
1003 	if (ctx->nr_data > 0 && !config->metacopy) {  in ovl_fs_params_verify()
1024 	char **lowerdirs = ofs->config.lowerdirs;  in ovl_show_options()
1046 	if (ofs->config.upperdir) {  in ovl_show_options()
1047 		seq_show_option(m, "upperdir", ofs->config.upperdir);  in ovl_show_options()
1048 		seq_show_option(m, "workdir", ofs->config.workdir);  in ovl_show_options()
1050 	if (ofs->config.default_permissions)  in ovl_show_options()
1052 	if (ofs->config.redirect_mode != ovl_redirect_mode_def())  in ovl_show_options()
1054 			   ovl_redirect_mode(&ofs->config));  in ovl_show_options()
1055 	if (ofs->config.index != ovl_index_def)  in ovl_show_options()
1056 		seq_printf(m, ",index=%s", ofs->config.index ? "on" : "off");  in ovl_show_options()
1057 	if (ofs->config.uuid != ovl_uuid_def())  in ovl_show_options()
1058 		seq_printf(m, ",uuid=%s", ovl_uuid_mode(&ofs->config));  in ovl_show_options()
1059 	if (ofs->config.nfs_export != ovl_nfs_export_def)  in ovl_show_options()
1060 		seq_printf(m, ",nfs_export=%s", ofs->config.nfs_export ?  in ovl_show_options()
1062 	if (ofs->config.xino != ovl_xino_def() && !ovl_same_fs(ofs))  in ovl_show_options()
1063 		seq_printf(m, ",xino=%s", ovl_xino_mode(&ofs->config));  in ovl_show_options()
1064 	if (ofs->config.metacopy != ovl_metacopy_def)  in ovl_show_options()
1066 			   ofs->config.metacopy ? "on" : "off");  in ovl_show_options()
1067 	if (ofs->config.ovl_volatile)  in ovl_show_options()
1069 	if (ofs->config.userxattr)  in ovl_show_options()
1071 	if (ofs->config.verity_mode != ovl_verity_mode_def())  in ovl_show_options()
1073 			   ovl_verity_mode(&ofs->config));  in ovl_show_options()