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))
272 static int is_in(struct ip_mc_list *pmc, struct ip_sf_list *psf, int type, in is_in() argument
280 if (!(pmc->gsquery && !psf->sf_gsresp)) { in is_in()
281 if (pmc->sfmode == MCAST_INCLUDE) in is_in()
288 return pmc->sfcount[MCAST_EXCLUDE] == in is_in()
299 if (pmc->sfcount[MCAST_EXCLUDE] == 0 || in is_in()
302 return pmc->sfcount[MCAST_EXCLUDE] == in is_in()
307 return (pmc->sfmode == MCAST_INCLUDE) ^ sdeleted; in is_in()
309 if (pmc->sfmode == MCAST_INCLUDE) in is_in()
317 igmp_scount(struct ip_mc_list *pmc, int type, int gdeleted, int sdeleted) in igmp_scount() argument
322 for (psf = pmc->sources; psf; psf = psf->sf_next) { in igmp_scount()
323 if (!is_in(pmc, psf, type, gdeleted, sdeleted)) in igmp_scount()
429 static int grec_size(struct ip_mc_list *pmc, int type, int gdel, int sdel) in grec_size() argument
431 return sizeof(struct igmpv3_grec) + 4*igmp_scount(pmc, type, gdel, sdel); in grec_size()
434 static struct sk_buff *add_grhead(struct sk_buff *skb, struct ip_mc_list *pmc, in add_grhead() argument
437 struct net_device *dev = pmc->interface->dev; in add_grhead()
450 pgr->grec_mca = pmc->multiaddr; in add_grhead()
459 static struct sk_buff *add_grec(struct sk_buff *skb, struct ip_mc_list *pmc, in add_grec() argument
462 struct net_device *dev = pmc->interface->dev; in add_grec()
470 if (pmc->multiaddr == IGMP_ALL_HOSTS) in add_grec()
472 if (ipv4_is_local_multicast(pmc->multiaddr) && in add_grec()
487 psf_list = sdeleted ? &pmc->tomb : &pmc->sources; in add_grec()
497 AVAILABLE(skb) < grec_size(pmc, type, gdeleted, sdeleted)) { in add_grec()
510 if (!is_in(pmc, psf, type, gdeleted, sdeleted)) { in add_grec()
518 if (((gdeleted && pmc->sfmode == MCAST_EXCLUDE) || in add_grec()
519 (!gdeleted && pmc->crcount)) && in add_grec()
541 skb = add_grhead(skb, pmc, type, &pgr, mtu); in add_grec()
570 if (pmc->crcount || isquery) { in add_grec()
576 skb = add_grhead(skb, pmc, type, &pgr, mtu); in add_grec()
583 pmc->gsquery = 0; /* clear query state on report */ in add_grec()
587 static int igmpv3_send_report(struct in_device *in_dev, struct ip_mc_list *pmc) in igmpv3_send_report() argument
593 if (!pmc) { in igmpv3_send_report()
595 for_each_pmc_rcu(in_dev, pmc) { in igmpv3_send_report()
596 if (pmc->multiaddr == IGMP_ALL_HOSTS) in igmpv3_send_report()
598 if (ipv4_is_local_multicast(pmc->multiaddr) && in igmpv3_send_report()
601 spin_lock_bh(&pmc->lock); in igmpv3_send_report()
602 if (pmc->sfcount[MCAST_EXCLUDE]) in igmpv3_send_report()
606 skb = add_grec(skb, pmc, type, 0, 0); in igmpv3_send_report()
607 spin_unlock_bh(&pmc->lock); in igmpv3_send_report()
611 spin_lock_bh(&pmc->lock); in igmpv3_send_report()
612 if (pmc->sfcount[MCAST_EXCLUDE]) in igmpv3_send_report()
616 skb = add_grec(skb, pmc, type, 0, 0); in igmpv3_send_report()
617 spin_unlock_bh(&pmc->lock); in igmpv3_send_report()
645 static void kfree_pmc(struct ip_mc_list *pmc) in kfree_pmc() argument
647 ip_sf_list_clear_all(pmc->sources); in kfree_pmc()
648 ip_sf_list_clear_all(pmc->tomb); in kfree_pmc()
649 kfree(pmc); in kfree_pmc()
654 struct ip_mc_list *pmc, *pmc_prev, *pmc_next; in igmpv3_send_cr() local
663 for (pmc = in_dev->mc_tomb; pmc; pmc = pmc_next) { in igmpv3_send_cr()
664 pmc_next = pmc->next; in igmpv3_send_cr()
665 if (pmc->sfmode == MCAST_INCLUDE) { in igmpv3_send_cr()
668 skb = add_grec(skb, pmc, type, 1, 0); in igmpv3_send_cr()
669 skb = add_grec(skb, pmc, dtype, 1, 1); in igmpv3_send_cr()
671 if (pmc->crcount) { in igmpv3_send_cr()
672 if (pmc->sfmode == MCAST_EXCLUDE) { in igmpv3_send_cr()
674 skb = add_grec(skb, pmc, type, 1, 0); in igmpv3_send_cr()
676 pmc->crcount--; in igmpv3_send_cr()
677 if (pmc->crcount == 0) { in igmpv3_send_cr()
678 igmpv3_clear_zeros(&pmc->tomb); in igmpv3_send_cr()
679 igmpv3_clear_zeros(&pmc->sources); in igmpv3_send_cr()
682 if (pmc->crcount == 0 && !pmc->tomb && !pmc->sources) { in igmpv3_send_cr()
687 in_dev_put(pmc->interface); in igmpv3_send_cr()
688 kfree_pmc(pmc); in igmpv3_send_cr()
690 pmc_prev = pmc; in igmpv3_send_cr()
695 for_each_pmc_rcu(in_dev, pmc) { in igmpv3_send_cr()
696 spin_lock_bh(&pmc->lock); in igmpv3_send_cr()
697 if (pmc->sfcount[MCAST_EXCLUDE]) { in igmpv3_send_cr()
704 skb = add_grec(skb, pmc, type, 0, 0); in igmpv3_send_cr()
705 skb = add_grec(skb, pmc, dtype, 0, 1); /* deleted sources */ in igmpv3_send_cr()
708 if (pmc->crcount) { in igmpv3_send_cr()
709 if (pmc->sfmode == MCAST_EXCLUDE) in igmpv3_send_cr()
713 skb = add_grec(skb, pmc, type, 0, 0); in igmpv3_send_cr()
714 pmc->crcount--; in igmpv3_send_cr()
716 spin_unlock_bh(&pmc->lock); in igmpv3_send_cr()
725 static int igmp_send_report(struct in_device *in_dev, struct ip_mc_list *pmc, in igmp_send_report() argument
734 __be32 group = pmc ? pmc->multiaddr : 0; in igmp_send_report()
740 return igmpv3_send_report(in_dev, pmc); in igmp_send_report()
862 static int igmp_xmarksources(struct ip_mc_list *pmc, int nsrcs, __be32 *srcs) in igmp_xmarksources() argument
868 for (psf = pmc->sources; psf; psf = psf->sf_next) { in igmp_xmarksources()
874 pmc->sfcount[MCAST_EXCLUDE] != in igmp_xmarksources()
883 pmc->gsquery = 0; in igmp_xmarksources()
889 static int igmp_marksources(struct ip_mc_list *pmc, int nsrcs, __be32 *srcs) in igmp_marksources() argument
894 if (pmc->sfmode == MCAST_EXCLUDE) in igmp_marksources()
895 return igmp_xmarksources(pmc, nsrcs, srcs); in igmp_marksources()
899 for (psf = pmc->sources; psf; psf = psf->sf_next) { in igmp_marksources()
910 pmc->gsquery = 0; in igmp_marksources()
913 pmc->gsquery = 1; in igmp_marksources()
1177 struct ip_mc_list *pmc; in igmpv3_add_delrec() local
1186 pmc = kzalloc(sizeof(*pmc), gfp); in igmpv3_add_delrec()
1187 if (!pmc) in igmpv3_add_delrec()
1189 spin_lock_init(&pmc->lock); in igmpv3_add_delrec()
1191 pmc->interface = im->interface; in igmpv3_add_delrec()
1193 pmc->multiaddr = im->multiaddr; in igmpv3_add_delrec()
1194 pmc->crcount = in_dev->mr_qrv ?: READ_ONCE(net->ipv4.sysctl_igmp_qrv); in igmpv3_add_delrec()
1195 pmc->sfmode = im->sfmode; in igmpv3_add_delrec()
1196 if (pmc->sfmode == MCAST_INCLUDE) { in igmpv3_add_delrec()
1199 pmc->tomb = im->tomb; in igmpv3_add_delrec()
1200 pmc->sources = im->sources; in igmpv3_add_delrec()
1202 for (psf = pmc->sources; psf; psf = psf->sf_next) in igmpv3_add_delrec()
1203 psf->sf_crcount = pmc->crcount; in igmpv3_add_delrec()
1208 pmc->next = in_dev->mc_tomb; in igmpv3_add_delrec()
1209 in_dev->mc_tomb = pmc; in igmpv3_add_delrec()
1218 struct ip_mc_list *pmc, *pmc_prev; in igmpv3_del_delrec() local
1225 for (pmc = in_dev->mc_tomb; pmc; pmc = pmc->next) { in igmpv3_del_delrec()
1226 if (pmc->multiaddr == multiaddr) in igmpv3_del_delrec()
1228 pmc_prev = pmc; in igmpv3_del_delrec()
1230 if (pmc) { in igmpv3_del_delrec()
1232 pmc_prev->next = pmc->next; in igmpv3_del_delrec()
1234 in_dev->mc_tomb = pmc->next; in igmpv3_del_delrec()
1239 if (pmc) { in igmpv3_del_delrec()
1240 im->interface = pmc->interface; in igmpv3_del_delrec()
1242 swap(im->tomb, pmc->tomb); in igmpv3_del_delrec()
1243 swap(im->sources, pmc->sources); in igmpv3_del_delrec()
1251 in_dev_put(pmc->interface); in igmpv3_del_delrec()
1252 kfree_pmc(pmc); in igmpv3_del_delrec()
1262 struct ip_mc_list *pmc, *nextpmc; in igmpv3_clear_delrec() local
1265 pmc = in_dev->mc_tomb; in igmpv3_clear_delrec()
1269 for (; pmc; pmc = nextpmc) { in igmpv3_clear_delrec()
1270 nextpmc = pmc->next; in igmpv3_clear_delrec()
1271 ip_mc_clear_src(pmc); in igmpv3_clear_delrec()
1272 in_dev_put(pmc->interface); in igmpv3_clear_delrec()
1273 kfree_pmc(pmc); in igmpv3_clear_delrec()
1277 for_each_pmc_rcu(in_dev, pmc) { in igmpv3_clear_delrec()
1280 spin_lock_bh(&pmc->lock); in igmpv3_clear_delrec()
1281 psf = pmc->tomb; in igmpv3_clear_delrec()
1282 pmc->tomb = NULL; in igmpv3_clear_delrec()
1283 spin_unlock_bh(&pmc->lock); in igmpv3_clear_delrec()
1709 struct ip_mc_list *pmc; in ip_mc_unmap() local
1713 for_each_pmc_rtnl(in_dev, pmc) in ip_mc_unmap()
1714 igmp_group_dropped(pmc); in ip_mc_unmap()
1719 struct ip_mc_list *pmc; in ip_mc_remap() local
1723 for_each_pmc_rtnl(in_dev, pmc) { in ip_mc_remap()
1725 igmpv3_del_delrec(in_dev, pmc); in ip_mc_remap()
1727 igmp_group_added(pmc); in ip_mc_remap()
1735 struct ip_mc_list *pmc; in ip_mc_down() local
1739 for_each_pmc_rtnl(in_dev, pmc) in ip_mc_down()
1740 igmp_group_dropped(pmc); in ip_mc_down()
1786 struct ip_mc_list *pmc; in ip_mc_up() local
1793 for_each_pmc_rtnl(in_dev, pmc) { in ip_mc_up()
1795 igmpv3_del_delrec(in_dev, pmc); in ip_mc_up()
1797 igmp_group_added(pmc); in ip_mc_up()
1861 static int ip_mc_del1_src(struct ip_mc_list *pmc, int sfmode, in ip_mc_del1_src() argument
1868 for (psf = pmc->sources; psf; psf = psf->sf_next) { in ip_mc_del1_src()
1879 ip_rt_multicast_event(pmc->interface); in ip_mc_del1_src()
1883 struct in_device *in_dev = pmc->interface; in ip_mc_del1_src()
1891 pmc->sources = psf->sf_next; in ip_mc_del1_src()
1896 psf->sf_next = pmc->tomb; in ip_mc_del1_src()
1897 pmc->tomb = psf; in ip_mc_del1_src()
1913 struct ip_mc_list *pmc; in ip_mc_del_src() local
1920 for_each_pmc_rcu(in_dev, pmc) { in ip_mc_del_src()
1921 if (*pmca == pmc->multiaddr) in ip_mc_del_src()
1924 if (!pmc) { in ip_mc_del_src()
1929 spin_lock_bh(&pmc->lock); in ip_mc_del_src()
1932 sf_markstate(pmc); in ip_mc_del_src()
1936 if (!pmc->sfcount[sfmode]) in ip_mc_del_src()
1938 pmc->sfcount[sfmode]--; in ip_mc_del_src()
1942 int rv = ip_mc_del1_src(pmc, sfmode, &psfsrc[i]); in ip_mc_del_src()
1948 if (pmc->sfmode == MCAST_EXCLUDE && in ip_mc_del_src()
1949 pmc->sfcount[MCAST_EXCLUDE] == 0 && in ip_mc_del_src()
1950 pmc->sfcount[MCAST_INCLUDE]) { in ip_mc_del_src()
1957 pmc->sfmode = MCAST_INCLUDE; in ip_mc_del_src()
1959 pmc->crcount = in_dev->mr_qrv ?: READ_ONCE(net->ipv4.sysctl_igmp_qrv); in ip_mc_del_src()
1960 WRITE_ONCE(in_dev->mr_ifc_count, pmc->crcount); in ip_mc_del_src()
1961 for (psf = pmc->sources; psf; psf = psf->sf_next) in ip_mc_del_src()
1963 igmp_ifc_event(pmc->interface); in ip_mc_del_src()
1964 } else if (sf_setstate(pmc) || changerec) { in ip_mc_del_src()
1965 igmp_ifc_event(pmc->interface); in ip_mc_del_src()
1969 spin_unlock_bh(&pmc->lock); in ip_mc_del_src()
1976 static int ip_mc_add1_src(struct ip_mc_list *pmc, int sfmode, in ip_mc_add1_src() argument
1982 for (psf = pmc->sources; psf; psf = psf->sf_next) { in ip_mc_add1_src()
1995 pmc->sources = psf; in ip_mc_add1_src()
1999 ip_rt_multicast_event(pmc->interface); in ip_mc_add1_src()
2005 static void sf_markstate(struct ip_mc_list *pmc) in sf_markstate() argument
2008 int mca_xcount = pmc->sfcount[MCAST_EXCLUDE]; in sf_markstate()
2010 for (psf = pmc->sources; psf; psf = psf->sf_next) in sf_markstate()
2011 if (pmc->sfcount[MCAST_EXCLUDE]) { in sf_markstate()
2019 static int sf_setstate(struct ip_mc_list *pmc) in sf_setstate() argument
2022 int mca_xcount = pmc->sfcount[MCAST_EXCLUDE]; in sf_setstate()
2023 int qrv = pmc->interface->mr_qrv; in sf_setstate()
2027 for (psf = pmc->sources; psf; psf = psf->sf_next) { in sf_setstate()
2028 if (pmc->sfcount[MCAST_EXCLUDE]) { in sf_setstate()
2037 for (dpsf = pmc->tomb; dpsf; dpsf = dpsf->sf_next) { in sf_setstate()
2046 pmc->tomb = dpsf->sf_next; in sf_setstate()
2059 for (dpsf = pmc->tomb; dpsf; dpsf = dpsf->sf_next) in sf_setstate()
2068 dpsf->sf_next = pmc->tomb; in sf_setstate()
2069 pmc->tomb = dpsf; in sf_setstate()
2085 struct ip_mc_list *pmc; in ip_mc_add_src() local
2092 for_each_pmc_rcu(in_dev, pmc) { in ip_mc_add_src()
2093 if (*pmca == pmc->multiaddr) in ip_mc_add_src()
2096 if (!pmc) { in ip_mc_add_src()
2101 spin_lock_bh(&pmc->lock); in ip_mc_add_src()
2105 sf_markstate(pmc); in ip_mc_add_src()
2107 isexclude = pmc->sfmode == MCAST_EXCLUDE; in ip_mc_add_src()
2109 pmc->sfcount[sfmode]++; in ip_mc_add_src()
2112 err = ip_mc_add1_src(pmc, sfmode, &psfsrc[i]); in ip_mc_add_src()
2120 pmc->sfcount[sfmode]--; in ip_mc_add_src()
2122 (void) ip_mc_del1_src(pmc, sfmode, &psfsrc[j]); in ip_mc_add_src()
2123 } else if (isexclude != (pmc->sfcount[MCAST_EXCLUDE] != 0)) { in ip_mc_add_src()
2126 struct net *net = dev_net(pmc->interface->dev); in ip_mc_add_src()
2127 in_dev = pmc->interface; in ip_mc_add_src()
2131 if (pmc->sfcount[MCAST_EXCLUDE]) in ip_mc_add_src()
2132 pmc->sfmode = MCAST_EXCLUDE; in ip_mc_add_src()
2133 else if (pmc->sfcount[MCAST_INCLUDE]) in ip_mc_add_src()
2134 pmc->sfmode = MCAST_INCLUDE; in ip_mc_add_src()
2138 pmc->crcount = in_dev->mr_qrv ?: READ_ONCE(net->ipv4.sysctl_igmp_qrv); in ip_mc_add_src()
2139 WRITE_ONCE(in_dev->mr_ifc_count, pmc->crcount); in ip_mc_add_src()
2140 for (psf = pmc->sources; psf; psf = psf->sf_next) in ip_mc_add_src()
2143 } else if (sf_setstate(pmc)) { in ip_mc_add_src()
2147 spin_unlock_bh(&pmc->lock); in ip_mc_add_src()
2151 static void ip_mc_clear_src(struct ip_mc_list *pmc) in ip_mc_clear_src() argument
2155 spin_lock_bh(&pmc->lock); in ip_mc_clear_src()
2156 tomb = pmc->tomb; in ip_mc_clear_src()
2157 pmc->tomb = NULL; in ip_mc_clear_src()
2158 sources = pmc->sources; in ip_mc_clear_src()
2159 pmc->sources = NULL; in ip_mc_clear_src()
2160 pmc->sfmode = MCAST_EXCLUDE; in ip_mc_clear_src()
2161 pmc->sfcount[MCAST_INCLUDE] = 0; in ip_mc_clear_src()
2162 pmc->sfcount[MCAST_EXCLUDE] = 1; in ip_mc_clear_src()
2163 spin_unlock_bh(&pmc->lock); in ip_mc_clear_src()
2311 struct ip_mc_socklist *pmc; in ip_mc_source() local
2335 for_each_pmc_rtnl(inet, pmc) { in ip_mc_source()
2336 if ((pmc->multi.imr_multiaddr.s_addr == in ip_mc_source()
2338 (pmc->multi.imr_ifindex == imr.imr_ifindex)) in ip_mc_source()
2341 if (!pmc) { /* must have a prior join */ in ip_mc_source()
2346 if (pmc->sflist) { in ip_mc_source()
2347 if (pmc->sfmode != omode) { in ip_mc_source()
2351 } else if (pmc->sfmode != omode) { in ip_mc_source()
2354 ip_mc_del_src(in_dev, &mreqs->imr_multiaddr, pmc->sfmode, 0, in ip_mc_source()
2356 pmc->sfmode = omode; in ip_mc_source()
2359 psl = rtnl_dereference(pmc->sflist); in ip_mc_source()
2414 rcu_assign_pointer(pmc->sflist, newpsl); in ip_mc_source()
2447 struct ip_mc_socklist *pmc; in ip_mc_msfilter() local
2478 for_each_pmc_rtnl(inet, pmc) { in ip_mc_msfilter()
2479 if (pmc->multi.imr_multiaddr.s_addr == msf->imsf_multiaddr && in ip_mc_msfilter()
2480 pmc->multi.imr_ifindex == imr.imr_ifindex) in ip_mc_msfilter()
2483 if (!pmc) { /* must have a prior join */ in ip_mc_msfilter()
2508 psl = rtnl_dereference(pmc->sflist); in ip_mc_msfilter()
2510 (void) ip_mc_del_src(in_dev, &msf->imsf_multiaddr, pmc->sfmode, in ip_mc_msfilter()
2515 (void) ip_mc_del_src(in_dev, &msf->imsf_multiaddr, pmc->sfmode, in ip_mc_msfilter()
2518 rcu_assign_pointer(pmc->sflist, newpsl); in ip_mc_msfilter()
2521 pmc->sfmode = msf->imsf_fmode; in ip_mc_msfilter()
2535 struct ip_mc_socklist *pmc; in ip_mc_msfget() local
2557 for_each_pmc_rtnl(inet, pmc) { in ip_mc_msfget()
2558 if (pmc->multi.imr_multiaddr.s_addr == msf->imsf_multiaddr && in ip_mc_msfget()
2559 pmc->multi.imr_ifindex == imr.imr_ifindex) in ip_mc_msfget()
2562 if (!pmc) /* must have a prior join */ in ip_mc_msfget()
2564 msf->imsf_fmode = pmc->sfmode; in ip_mc_msfget()
2565 psl = rtnl_dereference(pmc->sflist); in ip_mc_msfget()
2593 struct ip_mc_socklist *pmc; in ip_mc_gsfget() local
2606 for_each_pmc_rtnl(inet, pmc) { in ip_mc_gsfget()
2607 if (pmc->multi.imr_multiaddr.s_addr == addr && in ip_mc_gsfget()
2608 pmc->multi.imr_ifindex == gsf->gf_interface) in ip_mc_gsfget()
2611 if (!pmc) /* must have a prior join */ in ip_mc_gsfget()
2613 gsf->gf_fmode = pmc->sfmode; in ip_mc_gsfget()
2614 psl = rtnl_dereference(pmc->sflist); in ip_mc_gsfget()
2638 struct ip_mc_socklist *pmc; in ip_mc_sf_allow() local
2648 for_each_pmc_rcu(inet, pmc) { in ip_mc_sf_allow()
2649 if (pmc->multi.imr_multiaddr.s_addr == loc_addr && in ip_mc_sf_allow()
2650 (pmc->multi.imr_ifindex == dif || in ip_mc_sf_allow()
2651 (sdif && pmc->multi.imr_ifindex == sdif))) in ip_mc_sf_allow()
2655 if (!pmc) in ip_mc_sf_allow()
2657 psl = rcu_dereference(pmc->sflist); in ip_mc_sf_allow()
2658 ret = (pmc->sfmode == MCAST_EXCLUDE); in ip_mc_sf_allow()
2667 if (pmc->sfmode == MCAST_INCLUDE && i >= psl->sl_count) in ip_mc_sf_allow()
2669 if (pmc->sfmode == MCAST_EXCLUDE && i < psl->sl_count) in ip_mc_sf_allow()