bsd/netinet6/in6_mcast.c

290 im6o_grow(struct ip6_moptions *imo, size_t newmax)
299 	IM6O_LOCK_ASSERT_HELD(imo);
303 	omships = imo->im6o_membership;
304 	omfilters = imo->im6o_mfilters;
305 	oldmax = imo->im6o_max_memberships;
317 	imo->im6o_membership = nmships;
324 	imo->im6o_mfilters = nmfilters;
330 	imo->im6o_max_memberships = newmax;
341 im6o_match_group(const struct ip6_moptions *imo, const struct ifnet *ifp,
349 	IM6O_LOCK_ASSERT_HELD(__DECONST(struct ip6_moptions *, imo));
354 	if (imo->im6o_membership == NULL || imo->im6o_num_memberships == 0)
357 	nmships = imo->im6o_num_memberships;
359 		pinm = imo->im6o_membership[idx];
378  * Find an IPv6 multicast source entry for this imo which matches
389 im6o_match_source(const struct ip6_moptions *imo, const size_t gidx,
397 	IM6O_LOCK_ASSERT_HELD(__DECONST(struct ip6_moptions *, imo));
400 	VERIFY(gidx != (size_t)-1 && gidx < imo->im6o_num_memberships);
403 	if (imo->im6o_mfilters == NULL)
405 	imf = &imo->im6o_mfilters[gidx];
422 im6o_mc_filter(const struct ip6_moptions *imo, const struct ifnet *ifp,
429 	IM6O_LOCK_ASSERT_HELD(__DECONST(struct ip6_moptions *, imo));
432 	gidx = im6o_match_group(imo, ifp, group);
445 	mode = imo->im6o_mfilters[gidx].im6f_st[1];
446 	ims = im6o_match_source(imo, gidx, src);
1409 	struct ip6_moptions		*imo;
1475 	imo = in6p_findmoptions(inp);
1476 	if (imo == NULL)
1479 	IM6O_LOCK(imo);
1480 	idx = im6o_match_group(imo, ifp, &gsa->sa);
1481 	if (idx == (size_t)-1 || imo->im6o_mfilters == NULL) {
1486 	VERIFY(imo->im6o_mfilters != NULL);
1487 	imf = &imo->im6o_mfilters[idx];
1488 	inm = imo->im6o_membership[idx];
1506 	ims = im6o_match_source(imo, idx, &ssa->sa);
1562 	IM6O_UNLOCK(imo);
1563 	IM6O_REMREF(imo);	/* from in6p_findmoptions() */
1579 	struct ip6_moptions	 *imo;
1584 	if ((imo = inp->in6p_moptions) != NULL) {
1585 		IM6O_ADDREF(imo);	/* for caller */
1586 		return (imo);
1589 	imo = ip6_allocmoptions(M_WAITOK);
1590 	if (imo == NULL)
1596 		IM6O_REMREF(imo);
1604 		IM6O_REMREF(imo);
1608 	imo->im6o_multicast_ifp = NULL;
1609 	imo->im6o_multicast_hlim = ip6_defmcasthlim;
1610 	imo->im6o_multicast_loop = in6_mcast_loop;
1611 	imo->im6o_num_memberships = 0;
1612 	imo->im6o_max_memberships = IPV6_MIN_MEMBERSHIPS;
1613 	imo->im6o_membership = immp;
1619 	imo->im6o_mfilters = imfp;
1620 	inp->in6p_moptions = imo; /* keep reference from ip6_allocmoptions() */
1621 	IM6O_ADDREF(imo);	/* for caller */
1623 	return (imo);
1637 	struct ip6_moptions	*imo;
1648 	imo = inp->in6p_moptions;
1649 	VERIFY(imo != NULL);
1697 	IM6O_LOCK(imo);
1701 	idx = im6o_match_group(imo, ifp, &gsa->sa);
1702 	if (idx == (size_t)-1 || imo->im6o_mfilters == NULL) {
1703 		IM6O_UNLOCK(imo);
1706 	imf = &imo->im6o_mfilters[idx];
1712 		IM6O_UNLOCK(imo);
1735 			IM6O_UNLOCK(imo);
1765 	IM6O_UNLOCK(imo);
1960 	struct ip6_moptions		*imo;
2119 	imo = in6p_findmoptions(inp);
2120 	if (imo == NULL)
2123 	IM6O_LOCK(imo);
2124 	idx = im6o_match_group(imo, ifp, &gsa->sa);
2128 		inm = imo->im6o_membership[idx];
2129 		imf = &imo->im6o_mfilters[idx];
2156 			lims = im6o_match_source(imo, idx, &ssa->sa);
2190 		if (imo->im6o_num_memberships == imo->im6o_max_memberships) {
2191 			error = im6o_grow(imo, 0);
2200 		idx = imo->im6o_num_memberships;
2201 		imo->im6o_membership[idx] = NULL;
2202 		imo->im6o_num_memberships++;
2203 		VERIFY(imo->im6o_mfilters != NULL);
2204 		imf = &imo->im6o_mfilters[idx];
2252 		imo->im6o_membership[idx] = inm; /* from in6_mc_join() */
2287 		imo->im6o_membership[idx] = NULL;
2288 		--imo->im6o_num_memberships;
2292 	IM6O_UNLOCK(imo);
2293 	IM6O_REMREF(imo);	/* from in6p_findmoptions() */
2312 	struct ip6_moptions		*imo;
2480 	imo = in6p_findmoptions(inp);
2481 	if (imo == NULL)
2484 	IM6O_LOCK(imo);
2485 	idx = im6o_match_group(imo, ifp, &gsa->sa);
2490 	inm = imo->im6o_membership[idx];
2491 	imf = &imo->im6o_mfilters[idx];
2511 		ims = im6o_match_source(imo, idx, &ssa->sa);
2568 		VERIFY(inm == imo->im6o_membership[idx]);
2569 		imo->im6o_membership[idx] = NULL;
2571 		for (++idx; idx < imo->im6o_num_memberships; ++idx) {
2572 			imo->im6o_membership[idx-1] = imo->im6o_membership[idx];
2573 			imo->im6o_mfilters[idx-1] = imo->im6o_mfilters[idx];
2575 		imo->im6o_num_memberships--;
2579 	IM6O_UNLOCK(imo);
2580 	IM6O_REMREF(imo);	/* from in6p_findmoptions() */
2600 	struct ip6_moptions	*imo;
2622 	imo = in6p_findmoptions(inp);
2623 	if (imo == NULL)
2626 	IM6O_LOCK(imo);
2627 	imo->im6o_multicast_ifp = ifp;
2628 	IM6O_UNLOCK(imo);
2629 	IM6O_REMREF(imo);	/* from in6p_findmoptions() */
2646 	struct ip6_moptions	*imo;
2710 	imo = in6p_findmoptions(inp);
2711 	if (imo == NULL)
2714 	IM6O_LOCK(imo);
2715 	idx = im6o_match_group(imo, ifp, &gsa->sa);
2716 	if (idx == (size_t)-1 || imo->im6o_mfilters == NULL) {
2720 	inm = imo->im6o_membership[idx];
2721 	imf = &imo->im6o_mfilters[idx];
2841 	IM6O_UNLOCK(imo);
2842 	IM6O_REMREF(imo);	/* from in6p_findmoptions() */