fs/isofs/rock.c

43 static int check_sp(struct rock_ridge *rr, struct inode *inode)
45 	if (rr->u.SP.magic[0] != 0xbe)
47 	if (rr->u.SP.magic[1] != 0xef)
49 	ISOFS_SB(inode->i_sb)->s_rock_offset = rr->u.SP.skip;
202 	struct rock_ridge *rr;
219 		rr = (struct rock_ridge *)rs.chr;
221 		 * Ignore rock ridge info if rr->len is out of range, but
225 		if (rr->len < 3)
230 		rs.chr += rr->len;
231 		rs.len -= rr->len;
233 		 * As above, just ignore the rock ridge info if rr->len
241 			if ((rr->u.RR.flags[0] & RR_NM) == 0)
245 			if (check_sp(rr, inode))
249 			rs.cont_extent = isonum_733(rr->u.CE.extent);
250 			rs.cont_offset = isonum_733(rr->u.CE.offset);
251 			rs.cont_size = isonum_733(rr->u.CE.size);
256 			if (rr->len < 5)
265 			if (rr->u.NM.flags & 6)
268 			if (rr->u.NM.flags & ~1) {
270 					rr->u.NM.flags);
273 			len = rr->len - 5;
278 			p = memchr(rr->u.NM.name, '\0', len);
280 				len = p - rr->u.NM.name;
281 			memcpy(retname + retnamlen, rr->u.NM.name, len);
316 	struct rock_ridge *rr;
335 		rr = (struct rock_ridge *)rs.chr;
337 		 * Ignore rock ridge info if rr->len is out of range, but
341 		if (rr->len < 3)
346 		rs.chr += rr->len;
347 		rs.len -= rr->len;
349 		 * As above, just ignore the rock ridge info if rr->len
358 			if ((rr->u.RR.flags[0] &
364 			if (check_sp(rr, inode))
368 			rs.cont_extent = isonum_733(rr->u.CE.extent);
369 			rs.cont_offset = isonum_733(rr->u.CE.offset);
370 			rs.cont_size = isonum_733(rr->u.CE.size);
374 			if (rr->u.ER.len_id + offsetof(struct rock_ridge, u.ER.data) > rr->len)
380 				for (p = 0; p < rr->u.ER.len_id; p++)
381 					printk(KERN_CONT "%c", rr->u.ER.data[p]);
386 			inode->i_mode = isonum_733(rr->u.PX.mode);
387 			set_nlink(inode, isonum_733(rr->u.PX.n_links));
388 			i_uid_write(inode, isonum_733(rr->u.PX.uid));
389 			i_gid_write(inode, isonum_733(rr->u.PX.gid));
394 				high = isonum_733(rr->u.PN.dev_high);
395 				low = isonum_733(rr->u.PN.dev_low);
418 			flags = rr->u.TF.flags & TF_LONG_FORM ? ISO_DATE_LONG_FORM : 0;
419 			size = rr->u.TF.flags & TF_LONG_FORM ? 17 : 7;
420 			slen = rr->len - 5;
428 			if ((rr->u.TF.flags & TF_CREATE) && size <= slen) {
430 						iso_date(rr->u.TF.data + size * cnt++, flags));
433 			if ((rr->u.TF.flags & TF_MODIFY) && size <= slen) {
435 						iso_date(rr->u.TF.data + size * cnt++, flags));
438 			if ((rr->u.TF.flags & TF_ACCESS) && size <= slen) {
440 						iso_date(rr->u.TF.data + size * cnt++, flags));
443 			if ((rr->u.TF.flags & TF_ATTRIBUTES) && size <= slen) {
445 						iso_date(rr->u.TF.data + size * cnt++, flags));
455 				slen = rr->len - 5;
456 				slp = &rr->u.SL.link;
485 						if (((rr->u.SL.
517 			reloc_block = isonum_733(rr->u.CL.location);
549 			algo = isonum_721(rr->u.ZF.algorithm);
552 					isonum_711(&rr->u.ZF.parms[1]);
571 						isonum_711(&rr->u.ZF.parms[0]);
573 						isonum_711(&rr->u.ZF.parms[1]);
575 					    isonum_733(rr->u.ZF.
582 				       rr->u.ZF.algorithm[0],
583 				       rr->u.ZF.algorithm[1]);
605 static char *get_symlink_chunk(char *rpnt, struct rock_ridge *rr, char *plimit)
611 	slen = rr->len - 5;
612 	slp = &rr->u.SL.link;
652 			if ((!rootflag) && (rr->u.SL.flags & 1) &&
708 	struct rock_ridge *rr;
741 		rr = (struct rock_ridge *)rs.chr;
742 		if (rr->len < 3)
747 		rs.chr += rr->len;
748 		rs.len -= rr->len;
754 			if ((rr->u.RR.flags[0] & RR_SL) == 0)
758 			if (check_sp(rr, inode))
762 			rpnt = get_symlink_chunk(rpnt, rr,
769 			rs.cont_extent = isonum_733(rr->u.CE.extent);
770 			rs.cont_offset = isonum_733(rr->u.CE.offset);
771 			rs.cont_size = isonum_733(rr->u.CE.size);