Lines Matching refs:pmc
160 static int sf_setstate(struct ip_mc_list *pmc);
161 static void sf_markstate(struct ip_mc_list *pmc);
163 static void ip_mc_clear_src(struct ip_mc_list *pmc);
175 #define for_each_pmc_rcu(in_dev, pmc) \ argument
176 for (pmc = rcu_dereference(in_dev->mc_list); \
177 pmc != NULL; \
178 pmc = rcu_dereference(pmc->next_rcu))
180 #define for_each_pmc_rtnl(in_dev, pmc) \ argument
181 for (pmc = rtnl_dereference(in_dev->mc_list); \
182 pmc != NULL; \
183 pmc = rtnl_dereference(pmc->next_rcu))
270 static int is_in(struct ip_mc_list *pmc, struct ip_sf_list *psf, int type, in is_in() argument
278 if (!(pmc->gsquery && !psf->sf_gsresp)) { in is_in()
279 if (pmc->sfmode == MCAST_INCLUDE) in is_in()
286 return pmc->sfcount[MCAST_EXCLUDE] == in is_in()
297 if (pmc->sfcount[MCAST_EXCLUDE] == 0 || in is_in()
300 return pmc->sfcount[MCAST_EXCLUDE] == in is_in()
305 return (pmc->sfmode == MCAST_INCLUDE) ^ sdeleted; in is_in()
307 if (pmc->sfmode == MCAST_INCLUDE) in is_in()
315 igmp_scount(struct ip_mc_list *pmc, int type, int gdeleted, int sdeleted) in igmp_scount() argument
320 for (psf = pmc->sources; psf; psf = psf->sf_next) { in igmp_scount()
321 if (!is_in(pmc, psf, type, gdeleted, sdeleted)) in igmp_scount()
428 static int grec_size(struct ip_mc_list *pmc, int type, int gdel, int sdel) in grec_size() argument
430 return sizeof(struct igmpv3_grec) + 4*igmp_scount(pmc, type, gdel, sdel); in grec_size()
433 static struct sk_buff *add_grhead(struct sk_buff *skb, struct ip_mc_list *pmc, in add_grhead() argument
436 struct net_device *dev = pmc->interface->dev; in add_grhead()
449 pgr->grec_mca = pmc->multiaddr; in add_grhead()
458 static struct sk_buff *add_grec(struct sk_buff *skb, struct ip_mc_list *pmc, in add_grec() argument
461 struct net_device *dev = pmc->interface->dev; in add_grec()
469 if (pmc->multiaddr == IGMP_ALL_HOSTS) in add_grec()
471 if (ipv4_is_local_multicast(pmc->multiaddr) && in add_grec()
486 psf_list = sdeleted ? &pmc->tomb : &pmc->sources; in add_grec()
496 AVAILABLE(skb) < grec_size(pmc, type, gdeleted, sdeleted)) { in add_grec()
509 if (!is_in(pmc, psf, type, gdeleted, sdeleted)) { in add_grec()
517 if (((gdeleted && pmc->sfmode == MCAST_EXCLUDE) || in add_grec()
518 (!gdeleted && pmc->crcount)) && in add_grec()
540 skb = add_grhead(skb, pmc, type, &pgr, mtu); in add_grec()
569 if (pmc->crcount || isquery) { in add_grec()
575 skb = add_grhead(skb, pmc, type, &pgr, mtu); in add_grec()
582 pmc->gsquery = 0; /* clear query state on report */ in add_grec()
586 static int igmpv3_send_report(struct in_device *in_dev, struct ip_mc_list *pmc) in igmpv3_send_report() argument
592 if (!pmc) { in igmpv3_send_report()
594 for_each_pmc_rcu(in_dev, pmc) { in igmpv3_send_report()
595 if (pmc->multiaddr == IGMP_ALL_HOSTS) in igmpv3_send_report()
597 if (ipv4_is_local_multicast(pmc->multiaddr) && in igmpv3_send_report()
600 spin_lock_bh(&pmc->lock); in igmpv3_send_report()
601 if (pmc->sfcount[MCAST_EXCLUDE]) in igmpv3_send_report()
605 skb = add_grec(skb, pmc, type, 0, 0); in igmpv3_send_report()
606 spin_unlock_bh(&pmc->lock); in igmpv3_send_report()
610 spin_lock_bh(&pmc->lock); in igmpv3_send_report()
611 if (pmc->sfcount[MCAST_EXCLUDE]) in igmpv3_send_report()
615 skb = add_grec(skb, pmc, type, 0, 0); in igmpv3_send_report()
616 spin_unlock_bh(&pmc->lock); in igmpv3_send_report()
644 static void kfree_pmc(struct ip_mc_list *pmc) in kfree_pmc() argument
646 ip_sf_list_clear_all(pmc->sources); in kfree_pmc()
647 ip_sf_list_clear_all(pmc->tomb); in kfree_pmc()
648 kfree(pmc); in kfree_pmc()
653 struct ip_mc_list *pmc, *pmc_prev, *pmc_next; in igmpv3_send_cr() local
662 for (pmc = in_dev->mc_tomb; pmc; pmc = pmc_next) { in igmpv3_send_cr()
663 pmc_next = pmc->next; in igmpv3_send_cr()
664 if (pmc->sfmode == MCAST_INCLUDE) { in igmpv3_send_cr()
667 skb = add_grec(skb, pmc, type, 1, 0); in igmpv3_send_cr()
668 skb = add_grec(skb, pmc, dtype, 1, 1); in igmpv3_send_cr()
670 if (pmc->crcount) { in igmpv3_send_cr()
671 if (pmc->sfmode == MCAST_EXCLUDE) { in igmpv3_send_cr()
673 skb = add_grec(skb, pmc, type, 1, 0); in igmpv3_send_cr()
675 pmc->crcount--; in igmpv3_send_cr()
676 if (pmc->crcount == 0) { in igmpv3_send_cr()
677 igmpv3_clear_zeros(&pmc->tomb); in igmpv3_send_cr()
678 igmpv3_clear_zeros(&pmc->sources); in igmpv3_send_cr()
681 if (pmc->crcount == 0 && !pmc->tomb && !pmc->sources) { in igmpv3_send_cr()
686 in_dev_put(pmc->interface); in igmpv3_send_cr()
687 kfree_pmc(pmc); in igmpv3_send_cr()
689 pmc_prev = pmc; in igmpv3_send_cr()
694 for_each_pmc_rcu(in_dev, pmc) { in igmpv3_send_cr()
695 spin_lock_bh(&pmc->lock); in igmpv3_send_cr()
696 if (pmc->sfcount[MCAST_EXCLUDE]) { in igmpv3_send_cr()
703 skb = add_grec(skb, pmc, type, 0, 0); in igmpv3_send_cr()
704 skb = add_grec(skb, pmc, dtype, 0, 1); /* deleted sources */ in igmpv3_send_cr()
707 if (pmc->crcount) { in igmpv3_send_cr()
708 if (pmc->sfmode == MCAST_EXCLUDE) in igmpv3_send_cr()
712 skb = add_grec(skb, pmc, type, 0, 0); in igmpv3_send_cr()
713 pmc->crcount--; in igmpv3_send_cr()
715 spin_unlock_bh(&pmc->lock); in igmpv3_send_cr()
724 static int igmp_send_report(struct in_device *in_dev, struct ip_mc_list *pmc, in igmp_send_report() argument
733 __be32 group = pmc ? pmc->multiaddr : 0; in igmp_send_report()
739 return igmpv3_send_report(in_dev, pmc); in igmp_send_report()
861 static int igmp_xmarksources(struct ip_mc_list *pmc, int nsrcs, __be32 *srcs) in igmp_xmarksources() argument
867 for (psf = pmc->sources; psf; psf = psf->sf_next) { in igmp_xmarksources()
873 pmc->sfcount[MCAST_EXCLUDE] != in igmp_xmarksources()
882 pmc->gsquery = 0; in igmp_xmarksources()
888 static int igmp_marksources(struct ip_mc_list *pmc, int nsrcs, __be32 *srcs) in igmp_marksources() argument
893 if (pmc->sfmode == MCAST_EXCLUDE) in igmp_marksources()
894 return igmp_xmarksources(pmc, nsrcs, srcs); in igmp_marksources()
898 for (psf = pmc->sources; psf; psf = psf->sf_next) { in igmp_marksources()
909 pmc->gsquery = 0; in igmp_marksources()
912 pmc->gsquery = 1; in igmp_marksources()
1176 struct ip_mc_list *pmc; in igmpv3_add_delrec() local
1185 pmc = kzalloc(sizeof(*pmc), gfp); in igmpv3_add_delrec()
1186 if (!pmc) in igmpv3_add_delrec()
1188 spin_lock_init(&pmc->lock); in igmpv3_add_delrec()
1190 pmc->interface = im->interface; in igmpv3_add_delrec()
1192 pmc->multiaddr = im->multiaddr; in igmpv3_add_delrec()
1193 pmc->crcount = in_dev->mr_qrv ?: READ_ONCE(net->ipv4.sysctl_igmp_qrv); in igmpv3_add_delrec()
1194 pmc->sfmode = im->sfmode; in igmpv3_add_delrec()
1195 if (pmc->sfmode == MCAST_INCLUDE) { in igmpv3_add_delrec()
1198 pmc->tomb = im->tomb; in igmpv3_add_delrec()
1199 pmc->sources = im->sources; in igmpv3_add_delrec()
1201 for (psf = pmc->sources; psf; psf = psf->sf_next) in igmpv3_add_delrec()
1202 psf->sf_crcount = pmc->crcount; in igmpv3_add_delrec()
1207 pmc->next = in_dev->mc_tomb; in igmpv3_add_delrec()
1208 in_dev->mc_tomb = pmc; in igmpv3_add_delrec()
1217 struct ip_mc_list *pmc, *pmc_prev; in igmpv3_del_delrec() local
1224 for (pmc = in_dev->mc_tomb; pmc; pmc = pmc->next) { in igmpv3_del_delrec()
1225 if (pmc->multiaddr == multiaddr) in igmpv3_del_delrec()
1227 pmc_prev = pmc; in igmpv3_del_delrec()
1229 if (pmc) { in igmpv3_del_delrec()
1231 pmc_prev->next = pmc->next; in igmpv3_del_delrec()
1233 in_dev->mc_tomb = pmc->next; in igmpv3_del_delrec()
1238 if (pmc) { in igmpv3_del_delrec()
1239 im->interface = pmc->interface; in igmpv3_del_delrec()
1241 swap(im->tomb, pmc->tomb); in igmpv3_del_delrec()
1242 swap(im->sources, pmc->sources); in igmpv3_del_delrec()
1250 in_dev_put(pmc->interface); in igmpv3_del_delrec()
1251 kfree_pmc(pmc); in igmpv3_del_delrec()
1261 struct ip_mc_list *pmc, *nextpmc; in igmpv3_clear_delrec() local
1264 pmc = in_dev->mc_tomb; in igmpv3_clear_delrec()
1268 for (; pmc; pmc = nextpmc) { in igmpv3_clear_delrec()
1269 nextpmc = pmc->next; in igmpv3_clear_delrec()
1270 ip_mc_clear_src(pmc); in igmpv3_clear_delrec()
1271 in_dev_put(pmc->interface); in igmpv3_clear_delrec()
1272 kfree_pmc(pmc); in igmpv3_clear_delrec()
1276 for_each_pmc_rcu(in_dev, pmc) { in igmpv3_clear_delrec()
1279 spin_lock_bh(&pmc->lock); in igmpv3_clear_delrec()
1280 psf = pmc->tomb; in igmpv3_clear_delrec()
1281 pmc->tomb = NULL; in igmpv3_clear_delrec()
1282 spin_unlock_bh(&pmc->lock); in igmpv3_clear_delrec()
1708 struct ip_mc_list *pmc; in ip_mc_unmap() local
1712 for_each_pmc_rtnl(in_dev, pmc) in ip_mc_unmap()
1713 igmp_group_dropped(pmc); in ip_mc_unmap()
1718 struct ip_mc_list *pmc; in ip_mc_remap() local
1722 for_each_pmc_rtnl(in_dev, pmc) { in ip_mc_remap()
1724 igmpv3_del_delrec(in_dev, pmc); in ip_mc_remap()
1726 igmp_group_added(pmc); in ip_mc_remap()
1734 struct ip_mc_list *pmc; in ip_mc_down() local
1738 for_each_pmc_rtnl(in_dev, pmc) in ip_mc_down()
1739 igmp_group_dropped(pmc); in ip_mc_down()
1785 struct ip_mc_list *pmc; in ip_mc_up() local
1792 for_each_pmc_rtnl(in_dev, pmc) { in ip_mc_up()
1794 igmpv3_del_delrec(in_dev, pmc); in ip_mc_up()
1796 igmp_group_added(pmc); in ip_mc_up()
1860 static int ip_mc_del1_src(struct ip_mc_list *pmc, int sfmode, in ip_mc_del1_src() argument
1867 for (psf = pmc->sources; psf; psf = psf->sf_next) { in ip_mc_del1_src()
1878 ip_rt_multicast_event(pmc->interface); in ip_mc_del1_src()
1882 struct in_device *in_dev = pmc->interface; in ip_mc_del1_src()
1890 pmc->sources = psf->sf_next; in ip_mc_del1_src()
1895 psf->sf_next = pmc->tomb; in ip_mc_del1_src()
1896 pmc->tomb = psf; in ip_mc_del1_src()
1912 struct ip_mc_list *pmc; in ip_mc_del_src() local
1919 for_each_pmc_rcu(in_dev, pmc) { in ip_mc_del_src()
1920 if (*pmca == pmc->multiaddr) in ip_mc_del_src()
1923 if (!pmc) { in ip_mc_del_src()
1928 spin_lock_bh(&pmc->lock); in ip_mc_del_src()
1931 sf_markstate(pmc); in ip_mc_del_src()
1935 if (!pmc->sfcount[sfmode]) in ip_mc_del_src()
1937 pmc->sfcount[sfmode]--; in ip_mc_del_src()
1941 int rv = ip_mc_del1_src(pmc, sfmode, &psfsrc[i]); in ip_mc_del_src()
1947 if (pmc->sfmode == MCAST_EXCLUDE && in ip_mc_del_src()
1948 pmc->sfcount[MCAST_EXCLUDE] == 0 && in ip_mc_del_src()
1949 pmc->sfcount[MCAST_INCLUDE]) { in ip_mc_del_src()
1956 pmc->sfmode = MCAST_INCLUDE; in ip_mc_del_src()
1958 pmc->crcount = in_dev->mr_qrv ?: READ_ONCE(net->ipv4.sysctl_igmp_qrv); in ip_mc_del_src()
1959 WRITE_ONCE(in_dev->mr_ifc_count, pmc->crcount); in ip_mc_del_src()
1960 for (psf = pmc->sources; psf; psf = psf->sf_next) in ip_mc_del_src()
1962 igmp_ifc_event(pmc->interface); in ip_mc_del_src()
1963 } else if (sf_setstate(pmc) || changerec) { in ip_mc_del_src()
1964 igmp_ifc_event(pmc->interface); in ip_mc_del_src()
1968 spin_unlock_bh(&pmc->lock); in ip_mc_del_src()
1975 static int ip_mc_add1_src(struct ip_mc_list *pmc, int sfmode, in ip_mc_add1_src() argument
1981 for (psf = pmc->sources; psf; psf = psf->sf_next) { in ip_mc_add1_src()
1994 pmc->sources = psf; in ip_mc_add1_src()
1998 ip_rt_multicast_event(pmc->interface); in ip_mc_add1_src()
2004 static void sf_markstate(struct ip_mc_list *pmc) in sf_markstate() argument
2007 int mca_xcount = pmc->sfcount[MCAST_EXCLUDE]; in sf_markstate()
2009 for (psf = pmc->sources; psf; psf = psf->sf_next) in sf_markstate()
2010 if (pmc->sfcount[MCAST_EXCLUDE]) { in sf_markstate()
2018 static int sf_setstate(struct ip_mc_list *pmc) in sf_setstate() argument
2021 int mca_xcount = pmc->sfcount[MCAST_EXCLUDE]; in sf_setstate()
2022 int qrv = pmc->interface->mr_qrv; in sf_setstate()
2026 for (psf = pmc->sources; psf; psf = psf->sf_next) { in sf_setstate()
2027 if (pmc->sfcount[MCAST_EXCLUDE]) { in sf_setstate()
2036 for (dpsf = pmc->tomb; dpsf; dpsf = dpsf->sf_next) { in sf_setstate()
2045 pmc->tomb = dpsf->sf_next; in sf_setstate()
2058 for (dpsf = pmc->tomb; dpsf; dpsf = dpsf->sf_next) in sf_setstate()
2067 dpsf->sf_next = pmc->tomb; in sf_setstate()
2068 pmc->tomb = dpsf; in sf_setstate()
2084 struct ip_mc_list *pmc; in ip_mc_add_src() local
2091 for_each_pmc_rcu(in_dev, pmc) { in ip_mc_add_src()
2092 if (*pmca == pmc->multiaddr) in ip_mc_add_src()
2095 if (!pmc) { in ip_mc_add_src()
2100 spin_lock_bh(&pmc->lock); in ip_mc_add_src()
2104 sf_markstate(pmc); in ip_mc_add_src()
2106 isexclude = pmc->sfmode == MCAST_EXCLUDE; in ip_mc_add_src()
2108 pmc->sfcount[sfmode]++; in ip_mc_add_src()
2111 err = ip_mc_add1_src(pmc, sfmode, &psfsrc[i]); in ip_mc_add_src()
2119 pmc->sfcount[sfmode]--; in ip_mc_add_src()
2121 (void) ip_mc_del1_src(pmc, sfmode, &psfsrc[j]); in ip_mc_add_src()
2122 } else if (isexclude != (pmc->sfcount[MCAST_EXCLUDE] != 0)) { in ip_mc_add_src()
2125 struct net *net = dev_net(pmc->interface->dev); in ip_mc_add_src()
2126 in_dev = pmc->interface; in ip_mc_add_src()
2130 if (pmc->sfcount[MCAST_EXCLUDE]) in ip_mc_add_src()
2131 pmc->sfmode = MCAST_EXCLUDE; in ip_mc_add_src()
2132 else if (pmc->sfcount[MCAST_INCLUDE]) in ip_mc_add_src()
2133 pmc->sfmode = MCAST_INCLUDE; in ip_mc_add_src()
2137 pmc->crcount = in_dev->mr_qrv ?: READ_ONCE(net->ipv4.sysctl_igmp_qrv); in ip_mc_add_src()
2138 WRITE_ONCE(in_dev->mr_ifc_count, pmc->crcount); in ip_mc_add_src()
2139 for (psf = pmc->sources; psf; psf = psf->sf_next) in ip_mc_add_src()
2142 } else if (sf_setstate(pmc)) { in ip_mc_add_src()
2146 spin_unlock_bh(&pmc->lock); in ip_mc_add_src()
2150 static void ip_mc_clear_src(struct ip_mc_list *pmc) in ip_mc_clear_src() argument
2154 spin_lock_bh(&pmc->lock); in ip_mc_clear_src()
2155 tomb = pmc->tomb; in ip_mc_clear_src()
2156 pmc->tomb = NULL; in ip_mc_clear_src()
2157 sources = pmc->sources; in ip_mc_clear_src()
2158 pmc->sources = NULL; in ip_mc_clear_src()
2159 pmc->sfmode = MCAST_EXCLUDE; in ip_mc_clear_src()
2160 pmc->sfcount[MCAST_INCLUDE] = 0; in ip_mc_clear_src()
2161 pmc->sfcount[MCAST_EXCLUDE] = 1; in ip_mc_clear_src()
2162 spin_unlock_bh(&pmc->lock); in ip_mc_clear_src()
2310 struct ip_mc_socklist *pmc; in ip_mc_source() local
2334 for_each_pmc_rtnl(inet, pmc) { in ip_mc_source()
2335 if ((pmc->multi.imr_multiaddr.s_addr == in ip_mc_source()
2337 (pmc->multi.imr_ifindex == imr.imr_ifindex)) in ip_mc_source()
2340 if (!pmc) { /* must have a prior join */ in ip_mc_source()
2345 if (pmc->sflist) { in ip_mc_source()
2346 if (pmc->sfmode != omode) { in ip_mc_source()
2350 } else if (pmc->sfmode != omode) { in ip_mc_source()
2353 ip_mc_del_src(in_dev, &mreqs->imr_multiaddr, pmc->sfmode, 0, in ip_mc_source()
2355 pmc->sfmode = omode; in ip_mc_source()
2358 psl = rtnl_dereference(pmc->sflist); in ip_mc_source()
2415 rcu_assign_pointer(pmc->sflist, newpsl); in ip_mc_source()
2448 struct ip_mc_socklist *pmc; in ip_mc_msfilter() local
2479 for_each_pmc_rtnl(inet, pmc) { in ip_mc_msfilter()
2480 if (pmc->multi.imr_multiaddr.s_addr == msf->imsf_multiaddr && in ip_mc_msfilter()
2481 pmc->multi.imr_ifindex == imr.imr_ifindex) in ip_mc_msfilter()
2484 if (!pmc) { /* must have a prior join */ in ip_mc_msfilter()
2512 psl = rtnl_dereference(pmc->sflist); in ip_mc_msfilter()
2514 (void) ip_mc_del_src(in_dev, &msf->imsf_multiaddr, pmc->sfmode, in ip_mc_msfilter()
2520 (void) ip_mc_del_src(in_dev, &msf->imsf_multiaddr, pmc->sfmode, in ip_mc_msfilter()
2523 rcu_assign_pointer(pmc->sflist, newpsl); in ip_mc_msfilter()
2526 pmc->sfmode = msf->imsf_fmode; in ip_mc_msfilter()
2539 struct ip_mc_socklist *pmc; in ip_mc_msfget() local
2561 for_each_pmc_rtnl(inet, pmc) { in ip_mc_msfget()
2562 if (pmc->multi.imr_multiaddr.s_addr == msf->imsf_multiaddr && in ip_mc_msfget()
2563 pmc->multi.imr_ifindex == imr.imr_ifindex) in ip_mc_msfget()
2566 if (!pmc) /* must have a prior join */ in ip_mc_msfget()
2568 msf->imsf_fmode = pmc->sfmode; in ip_mc_msfget()
2569 psl = rtnl_dereference(pmc->sflist); in ip_mc_msfget()
2599 struct ip_mc_socklist *pmc; in ip_mc_gsfget() local
2612 for_each_pmc_rtnl(inet, pmc) { in ip_mc_gsfget()
2613 if (pmc->multi.imr_multiaddr.s_addr == addr && in ip_mc_gsfget()
2614 pmc->multi.imr_ifindex == gsf->gf_interface) in ip_mc_gsfget()
2617 if (!pmc) /* must have a prior join */ in ip_mc_gsfget()
2619 gsf->gf_fmode = pmc->sfmode; in ip_mc_gsfget()
2620 psl = rtnl_dereference(pmc->sflist); in ip_mc_gsfget()
2646 struct ip_mc_socklist *pmc; in ip_mc_sf_allow() local
2656 for_each_pmc_rcu(inet, pmc) { in ip_mc_sf_allow()
2657 if (pmc->multi.imr_multiaddr.s_addr == loc_addr && in ip_mc_sf_allow()
2658 (pmc->multi.imr_ifindex == dif || in ip_mc_sf_allow()
2659 (sdif && pmc->multi.imr_ifindex == sdif))) in ip_mc_sf_allow()
2663 if (!pmc) in ip_mc_sf_allow()
2665 psl = rcu_dereference(pmc->sflist); in ip_mc_sf_allow()
2666 ret = (pmc->sfmode == MCAST_EXCLUDE); in ip_mc_sf_allow()
2675 if (pmc->sfmode == MCAST_INCLUDE && i >= psl->sl_count) in ip_mc_sf_allow()
2677 if (pmc->sfmode == MCAST_EXCLUDE && i < psl->sl_count) in ip_mc_sf_allow()