644 	struct udf_dirstream *ds;  in udf_opendir()  local
646 	ds = uma_zalloc(udf_zone_ds, M_WAITOK | M_ZERO);  in udf_opendir()
648 	ds->node = node;  in udf_opendir()
649 	ds->offset = offset;  in udf_opendir()
650 	ds->udfmp = udfmp;  in udf_opendir()
651 	ds->fsize = fsize;  in udf_opendir()
653 	return (ds);  in udf_opendir()
657 udf_getfid(struct udf_dirstream *ds)  in udf_getfid()  argument
663 	if (ds->offset + ds->off >= ds->fsize) {  in udf_getfid()
664 		ds->error = 0;  in udf_getfid()
669 	if (ds->off == 0) {  in udf_getfid()
670 		ds->size = 0;  in udf_getfid()
671 		error = udf_readatoffset(ds->node, &ds->size, ds->offset,  in udf_getfid()
672 		    &ds->bp, &ds->data);  in udf_getfid()
674 			ds->error = error;  in udf_getfid()
675 			if (ds->bp != NULL)  in udf_getfid()
676 				brelse(ds->bp);  in udf_getfid()
685 	if (ds->fid_fragment && ds->buf != NULL) {  in udf_getfid()
686 		ds->fid_fragment = 0;  in udf_getfid()
687 		free(ds->buf, M_UDFFID);  in udf_getfid()
690 	fid = (struct fileid_desc*)&ds->data[ds->off];  in udf_getfid()
697 	if (ds->off + UDF_FID_SIZE > ds->size ||  in udf_getfid()
698 	    ds->off + le16toh(fid->l_iu) + fid->l_fi + UDF_FID_SIZE > ds->size){  in udf_getfid()
700 		frag_size = ds->size - ds->off;  in udf_getfid()
701 		if (frag_size >= ds->udfmp->bsize) {  in udf_getfid()
703 			ds->error = EINVAL;  in udf_getfid()
711 		ds->buf = malloc(ds->udfmp->bsize, M_UDFFID,  in udf_getfid()
713 		bcopy(fid, ds->buf, frag_size);  in udf_getfid()
716 		fid = (struct fileid_desc*)ds->buf;  in udf_getfid()
718 		if (ds->bp != NULL)  in udf_getfid()
719 			brelse(ds->bp);  in udf_getfid()
722 		ds->offset += ds->size;  in udf_getfid()
723 		ds->size = 0;  in udf_getfid()
724 		error = udf_readatoffset(ds->node, &ds->size, ds->offset,  in udf_getfid()
725 		    &ds->bp, &ds->data);  in udf_getfid()
727 			ds->error = error;  in udf_getfid()
736 			bcopy(ds->data, &ds->buf[frag_size],  in udf_getfid()
745 		if (total_fid_size > ds->udfmp->bsize) {  in udf_getfid()
747 			ds->error = EIO;  in udf_getfid()
750 		bcopy(ds->data, &ds->buf[frag_size],  in udf_getfid()
753 		ds->fid_fragment = 1;  in udf_getfid()
762 	ds->this_off = ds->offset + ds->off;  in udf_getfid()
763 	if (!ds->fid_fragment) {  in udf_getfid()
764 		ds->off += (total_fid_size + 3) & ~0x03;  in udf_getfid()
766 		ds->off = (total_fid_size - frag_size + 3) & ~0x03;  in udf_getfid()
773 udf_closedir(struct udf_dirstream *ds)  in udf_closedir()  argument
776 	if (ds->bp != NULL)  in udf_closedir()
777 		brelse(ds->bp);  in udf_closedir()
779 	if (ds->fid_fragment && ds->buf != NULL)  in udf_closedir()
780 		free(ds->buf, M_UDFFID);  in udf_closedir()
782 	uma_zfree(udf_zone_ds, ds);  in udf_closedir()
795 	struct udf_dirstream *ds;  in udf_readdir()  local
831 	ds = udf_opendir(node, uio->uio_offset, len, node->udfmp);  in udf_readdir()
833 	while ((fid = udf_getfid(ds)) != NULL) {  in udf_readdir()
880 			dir.d_off = ds->this_off;  in udf_readdir()
884 			    ds->this_off);  in udf_readdir()
888 		uio->uio_offset = ds->offset + ds->off;  in udf_readdir()
897 		error = ds->error;  in udf_readdir()
899 	udf_closedir(ds);  in udf_readdir()
1137 	struct udf_dirstream *ds;  in udf_lookup()  local
1177 	ds = udf_opendir(node, offset, fsize, udfmp);  in udf_lookup()
1179 	while ((fid = udf_getfid(ds)) != NULL) {  in udf_lookup()
1206 		error = ds->error;  in udf_lookup()
1210 		udf_closedir(ds);  in udf_lookup()
1221 			node->diroff = ds->offset + ds->off;  in udf_lookup()
1224 		udf_closedir(ds);  in udf_lookup()
1255 			udf_closedir(ds);  in udf_lookup()
1258 		udf_closedir(ds);  in udf_lookup()