Lines Matching full: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()
430 static int grec_size(struct ip_mc_list *pmc, int type, int gdel, int sdel) in grec_size() argument
432 return sizeof(struct igmpv3_grec) + 4*igmp_scount(pmc, type, gdel, sdel); in grec_size()
435 static struct sk_buff *add_grhead(struct sk_buff *skb, struct ip_mc_list *pmc, in add_grhead() argument
438 struct net_device *dev = pmc->interface->dev; in add_grhead()
451 pgr->grec_mca = pmc->multiaddr; in add_grhead()
460 static struct sk_buff *add_grec(struct sk_buff *skb, struct ip_mc_list *pmc, in add_grec() argument
463 struct net_device *dev = pmc->interface->dev; in add_grec()
471 if (pmc->multiaddr == IGMP_ALL_HOSTS) in add_grec()
473 if (ipv4_is_local_multicast(pmc->multiaddr) && in add_grec()
488 psf_list = sdeleted ? &pmc->tomb : &pmc->sources; in add_grec()
498 AVAILABLE(skb) < grec_size(pmc, type, gdeleted, sdeleted)) { in add_grec()
511 if (!is_in(pmc, psf, type, gdeleted, sdeleted)) { in add_grec()
519 if (((gdeleted && pmc->sfmode == MCAST_EXCLUDE) || in add_grec()
520 (!gdeleted && pmc->crcount)) && in add_grec()
542 skb = add_grhead(skb, pmc, type, &pgr, mtu); in add_grec()
571 if (pmc->crcount || isquery) { in add_grec()
577 skb = add_grhead(skb, pmc, type, &pgr, mtu); in add_grec()
584 pmc->gsquery = 0; /* clear query state on report */ in add_grec()
588 static int igmpv3_send_report(struct in_device *in_dev, struct ip_mc_list *pmc) in igmpv3_send_report() argument
594 if (!pmc) { in igmpv3_send_report()
596 for_each_pmc_rcu(in_dev, pmc) { in igmpv3_send_report()
597 if (pmc->multiaddr == IGMP_ALL_HOSTS) in igmpv3_send_report()
599 if (ipv4_is_local_multicast(pmc->multiaddr) && in igmpv3_send_report()
602 spin_lock_bh(&pmc->lock); in igmpv3_send_report()
603 if (pmc->sfcount[MCAST_EXCLUDE]) in igmpv3_send_report()
607 skb = add_grec(skb, pmc, type, 0, 0); in igmpv3_send_report()
608 spin_unlock_bh(&pmc->lock); in igmpv3_send_report()
612 spin_lock_bh(&pmc->lock); in igmpv3_send_report()
613 if (pmc->sfcount[MCAST_EXCLUDE]) in igmpv3_send_report()
617 skb = add_grec(skb, pmc, type, 0, 0); in igmpv3_send_report()
618 spin_unlock_bh(&pmc->lock); in igmpv3_send_report()
646 static void kfree_pmc(struct ip_mc_list *pmc) in kfree_pmc() argument
648 ip_sf_list_clear_all(pmc->sources); in kfree_pmc()
649 ip_sf_list_clear_all(pmc->tomb); in kfree_pmc()
650 kfree(pmc); in kfree_pmc()
655 struct ip_mc_list *pmc, *pmc_prev, *pmc_next; in igmpv3_send_cr() local
664 for (pmc = in_dev->mc_tomb; pmc; pmc = pmc_next) { in igmpv3_send_cr()
665 pmc_next = pmc->next; in igmpv3_send_cr()
666 if (pmc->sfmode == MCAST_INCLUDE) { in igmpv3_send_cr()
669 skb = add_grec(skb, pmc, type, 1, 0); in igmpv3_send_cr()
670 skb = add_grec(skb, pmc, dtype, 1, 1); in igmpv3_send_cr()
672 if (pmc->crcount) { in igmpv3_send_cr()
673 if (pmc->sfmode == MCAST_EXCLUDE) { in igmpv3_send_cr()
675 skb = add_grec(skb, pmc, type, 1, 0); in igmpv3_send_cr()
677 pmc->crcount--; in igmpv3_send_cr()
678 if (pmc->crcount == 0) { in igmpv3_send_cr()
679 igmpv3_clear_zeros(&pmc->tomb); in igmpv3_send_cr()
680 igmpv3_clear_zeros(&pmc->sources); in igmpv3_send_cr()
683 if (pmc->crcount == 0 && !pmc->tomb && !pmc->sources) { in igmpv3_send_cr()
688 in_dev_put(pmc->interface); in igmpv3_send_cr()
689 kfree_pmc(pmc); in igmpv3_send_cr()
691 pmc_prev = pmc; in igmpv3_send_cr()
696 for_each_pmc_rcu(in_dev, pmc) { in igmpv3_send_cr()
697 spin_lock_bh(&pmc->lock); in igmpv3_send_cr()
698 if (pmc->sfcount[MCAST_EXCLUDE]) { in igmpv3_send_cr()
705 skb = add_grec(skb, pmc, type, 0, 0); in igmpv3_send_cr()
706 skb = add_grec(skb, pmc, dtype, 0, 1); /* deleted sources */ in igmpv3_send_cr()
709 if (pmc->crcount) { in igmpv3_send_cr()
710 if (pmc->sfmode == MCAST_EXCLUDE) in igmpv3_send_cr()
714 skb = add_grec(skb, pmc, type, 0, 0); in igmpv3_send_cr()
715 pmc->crcount--; in igmpv3_send_cr()
717 spin_unlock_bh(&pmc->lock); in igmpv3_send_cr()
726 static int igmp_send_report(struct in_device *in_dev, struct ip_mc_list *pmc, in igmp_send_report() argument
735 __be32 group = pmc ? pmc->multiaddr : 0; in igmp_send_report()
741 return igmpv3_send_report(in_dev, pmc); in igmp_send_report()
863 static int igmp_xmarksources(struct ip_mc_list *pmc, int nsrcs, __be32 *srcs) in igmp_xmarksources() argument
869 for (psf = pmc->sources; psf; psf = psf->sf_next) { in igmp_xmarksources()
875 pmc->sfcount[MCAST_EXCLUDE] != in igmp_xmarksources()
884 pmc->gsquery = 0; in igmp_xmarksources()
890 static int igmp_marksources(struct ip_mc_list *pmc, int nsrcs, __be32 *srcs) in igmp_marksources() argument
895 if (pmc->sfmode == MCAST_EXCLUDE) in igmp_marksources()
896 return igmp_xmarksources(pmc, nsrcs, srcs); in igmp_marksources()
900 for (psf = pmc->sources; psf; psf = psf->sf_next) { in igmp_marksources()
911 pmc->gsquery = 0; in igmp_marksources()
914 pmc->gsquery = 1; in igmp_marksources()
1178 struct ip_mc_list *pmc; in igmpv3_add_delrec() local
1187 pmc = kzalloc(sizeof(*pmc), gfp); in igmpv3_add_delrec()
1188 if (!pmc) in igmpv3_add_delrec()
1190 spin_lock_init(&pmc->lock); in igmpv3_add_delrec()
1192 pmc->interface = im->interface; in igmpv3_add_delrec()
1194 pmc->multiaddr = im->multiaddr; in igmpv3_add_delrec()
1195 pmc->crcount = in_dev->mr_qrv ?: READ_ONCE(net->ipv4.sysctl_igmp_qrv); in igmpv3_add_delrec()
1196 pmc->sfmode = im->sfmode; in igmpv3_add_delrec()
1197 if (pmc->sfmode == MCAST_INCLUDE) { in igmpv3_add_delrec()
1200 pmc->tomb = im->tomb; in igmpv3_add_delrec()
1201 pmc->sources = im->sources; in igmpv3_add_delrec()
1203 for (psf = pmc->sources; psf; psf = psf->sf_next) in igmpv3_add_delrec()
1204 psf->sf_crcount = pmc->crcount; in igmpv3_add_delrec()
1209 pmc->next = in_dev->mc_tomb; in igmpv3_add_delrec()
1210 in_dev->mc_tomb = pmc; in igmpv3_add_delrec()
1219 struct ip_mc_list *pmc, *pmc_prev; in igmpv3_del_delrec() local
1226 for (pmc = in_dev->mc_tomb; pmc; pmc = pmc->next) { in igmpv3_del_delrec()
1227 if (pmc->multiaddr == multiaddr) in igmpv3_del_delrec()
1229 pmc_prev = pmc; in igmpv3_del_delrec()
1231 if (pmc) { in igmpv3_del_delrec()
1233 pmc_prev->next = pmc->next; in igmpv3_del_delrec()
1235 in_dev->mc_tomb = pmc->next; in igmpv3_del_delrec()
1240 if (pmc) { in igmpv3_del_delrec()
1241 im->interface = pmc->interface; in igmpv3_del_delrec()
1243 swap(im->tomb, pmc->tomb); in igmpv3_del_delrec()
1244 swap(im->sources, pmc->sources); in igmpv3_del_delrec()
1252 in_dev_put(pmc->interface); in igmpv3_del_delrec()
1253 kfree_pmc(pmc); in igmpv3_del_delrec()
1263 struct ip_mc_list *pmc, *nextpmc; in igmpv3_clear_delrec() local
1266 pmc = in_dev->mc_tomb; in igmpv3_clear_delrec()
1270 for (; pmc; pmc = nextpmc) { in igmpv3_clear_delrec()
1271 nextpmc = pmc->next; in igmpv3_clear_delrec()
1272 ip_mc_clear_src(pmc); in igmpv3_clear_delrec()
1273 in_dev_put(pmc->interface); in igmpv3_clear_delrec()
1274 kfree_pmc(pmc); in igmpv3_clear_delrec()
1278 for_each_pmc_rcu(in_dev, pmc) { in igmpv3_clear_delrec()
1281 spin_lock_bh(&pmc->lock); in igmpv3_clear_delrec()
1282 psf = pmc->tomb; in igmpv3_clear_delrec()
1283 pmc->tomb = NULL; in igmpv3_clear_delrec()
1284 spin_unlock_bh(&pmc->lock); in igmpv3_clear_delrec()
1710 struct ip_mc_list *pmc; in ip_mc_unmap() local
1714 for_each_pmc_rtnl(in_dev, pmc) in ip_mc_unmap()
1715 igmp_group_dropped(pmc); in ip_mc_unmap()
1720 struct ip_mc_list *pmc; in ip_mc_remap() local
1724 for_each_pmc_rtnl(in_dev, pmc) { in ip_mc_remap()
1726 igmpv3_del_delrec(in_dev, pmc); in ip_mc_remap()
1728 igmp_group_added(pmc); in ip_mc_remap()
1736 struct ip_mc_list *pmc; in ip_mc_down() local
1740 for_each_pmc_rtnl(in_dev, pmc) in ip_mc_down()
1741 igmp_group_dropped(pmc); in ip_mc_down()
1787 struct ip_mc_list *pmc; in ip_mc_up() local
1794 for_each_pmc_rtnl(in_dev, pmc) { in ip_mc_up()
1796 igmpv3_del_delrec(in_dev, pmc); in ip_mc_up()
1798 igmp_group_added(pmc); in ip_mc_up()
1862 static int ip_mc_del1_src(struct ip_mc_list *pmc, int sfmode, in ip_mc_del1_src() argument
1869 for (psf = pmc->sources; psf; psf = psf->sf_next) { in ip_mc_del1_src()
1880 ip_rt_multicast_event(pmc->interface); in ip_mc_del1_src()
1884 struct in_device *in_dev = pmc->interface; in ip_mc_del1_src()
1892 pmc->sources = psf->sf_next; in ip_mc_del1_src()
1897 psf->sf_next = pmc->tomb; in ip_mc_del1_src()
1898 pmc->tomb = psf; in ip_mc_del1_src()
1914 struct ip_mc_list *pmc; in ip_mc_del_src() local
1921 for_each_pmc_rcu(in_dev, pmc) { in ip_mc_del_src()
1922 if (*pmca == pmc->multiaddr) in ip_mc_del_src()
1925 if (!pmc) { in ip_mc_del_src()
1930 spin_lock_bh(&pmc->lock); in ip_mc_del_src()
1933 sf_markstate(pmc); in ip_mc_del_src()
1937 if (!pmc->sfcount[sfmode]) in ip_mc_del_src()
1939 pmc->sfcount[sfmode]--; in ip_mc_del_src()
1943 int rv = ip_mc_del1_src(pmc, sfmode, &psfsrc[i]); in ip_mc_del_src()
1949 if (pmc->sfmode == MCAST_EXCLUDE && in ip_mc_del_src()
1950 pmc->sfcount[MCAST_EXCLUDE] == 0 && in ip_mc_del_src()
1951 pmc->sfcount[MCAST_INCLUDE]) { in ip_mc_del_src()
1958 pmc->sfmode = MCAST_INCLUDE; in ip_mc_del_src()
1960 pmc->crcount = in_dev->mr_qrv ?: READ_ONCE(net->ipv4.sysctl_igmp_qrv); in ip_mc_del_src()
1961 WRITE_ONCE(in_dev->mr_ifc_count, pmc->crcount); in ip_mc_del_src()
1962 for (psf = pmc->sources; psf; psf = psf->sf_next) in ip_mc_del_src()
1964 igmp_ifc_event(pmc->interface); in ip_mc_del_src()
1965 } else if (sf_setstate(pmc) || changerec) { in ip_mc_del_src()
1966 igmp_ifc_event(pmc->interface); in ip_mc_del_src()
1970 spin_unlock_bh(&pmc->lock); in ip_mc_del_src()
1977 static int ip_mc_add1_src(struct ip_mc_list *pmc, int sfmode, in ip_mc_add1_src() argument
1983 for (psf = pmc->sources; psf; psf = psf->sf_next) { in ip_mc_add1_src()
1996 pmc->sources = psf; in ip_mc_add1_src()
2000 ip_rt_multicast_event(pmc->interface); in ip_mc_add1_src()
2006 static void sf_markstate(struct ip_mc_list *pmc) in sf_markstate() argument
2009 int mca_xcount = pmc->sfcount[MCAST_EXCLUDE]; in sf_markstate()
2011 for (psf = pmc->sources; psf; psf = psf->sf_next) in sf_markstate()
2012 if (pmc->sfcount[MCAST_EXCLUDE]) { in sf_markstate()
2020 static int sf_setstate(struct ip_mc_list *pmc) in sf_setstate() argument
2023 int mca_xcount = pmc->sfcount[MCAST_EXCLUDE]; in sf_setstate()
2024 int qrv = pmc->interface->mr_qrv; in sf_setstate()
2028 for (psf = pmc->sources; psf; psf = psf->sf_next) { in sf_setstate()
2029 if (pmc->sfcount[MCAST_EXCLUDE]) { in sf_setstate()
2038 for (dpsf = pmc->tomb; dpsf; dpsf = dpsf->sf_next) { in sf_setstate()
2047 pmc->tomb = dpsf->sf_next; in sf_setstate()
2060 for (dpsf = pmc->tomb; dpsf; dpsf = dpsf->sf_next) in sf_setstate()
2068 /* pmc->lock held by callers */ in sf_setstate()
2069 dpsf->sf_next = pmc->tomb; in sf_setstate()
2070 pmc->tomb = dpsf; in sf_setstate()
2086 struct ip_mc_list *pmc; in ip_mc_add_src() local
2093 for_each_pmc_rcu(in_dev, pmc) { in ip_mc_add_src()
2094 if (*pmca == pmc->multiaddr) in ip_mc_add_src()
2097 if (!pmc) { in ip_mc_add_src()
2102 spin_lock_bh(&pmc->lock); in ip_mc_add_src()
2106 sf_markstate(pmc); in ip_mc_add_src()
2108 isexclude = pmc->sfmode == MCAST_EXCLUDE; in ip_mc_add_src()
2110 pmc->sfcount[sfmode]++; in ip_mc_add_src()
2113 err = ip_mc_add1_src(pmc, sfmode, &psfsrc[i]); in ip_mc_add_src()
2121 pmc->sfcount[sfmode]--; in ip_mc_add_src()
2123 (void) ip_mc_del1_src(pmc, sfmode, &psfsrc[j]); in ip_mc_add_src()
2124 } else if (isexclude != (pmc->sfcount[MCAST_EXCLUDE] != 0)) { in ip_mc_add_src()
2127 struct net *net = dev_net(pmc->interface->dev); in ip_mc_add_src()
2128 in_dev = pmc->interface; in ip_mc_add_src()
2132 if (pmc->sfcount[MCAST_EXCLUDE]) in ip_mc_add_src()
2133 pmc->sfmode = MCAST_EXCLUDE; in ip_mc_add_src()
2134 else if (pmc->sfcount[MCAST_INCLUDE]) in ip_mc_add_src()
2135 pmc->sfmode = MCAST_INCLUDE; in ip_mc_add_src()
2139 pmc->crcount = in_dev->mr_qrv ?: READ_ONCE(net->ipv4.sysctl_igmp_qrv); in ip_mc_add_src()
2140 WRITE_ONCE(in_dev->mr_ifc_count, pmc->crcount); in ip_mc_add_src()
2141 for (psf = pmc->sources; psf; psf = psf->sf_next) in ip_mc_add_src()
2144 } else if (sf_setstate(pmc)) { in ip_mc_add_src()
2148 spin_unlock_bh(&pmc->lock); in ip_mc_add_src()
2152 static void ip_mc_clear_src(struct ip_mc_list *pmc) in ip_mc_clear_src() argument
2156 spin_lock_bh(&pmc->lock); in ip_mc_clear_src()
2157 tomb = pmc->tomb; in ip_mc_clear_src()
2158 pmc->tomb = NULL; in ip_mc_clear_src()
2159 sources = pmc->sources; in ip_mc_clear_src()
2160 pmc->sources = NULL; in ip_mc_clear_src()
2161 pmc->sfmode = MCAST_EXCLUDE; in ip_mc_clear_src()
2162 pmc->sfcount[MCAST_INCLUDE] = 0; in ip_mc_clear_src()
2163 pmc->sfcount[MCAST_EXCLUDE] = 1; in ip_mc_clear_src()
2164 spin_unlock_bh(&pmc->lock); in ip_mc_clear_src()
2312 struct ip_mc_socklist *pmc; in ip_mc_source() local
2336 for_each_pmc_rtnl(inet, pmc) { in ip_mc_source()
2337 if ((pmc->multi.imr_multiaddr.s_addr == in ip_mc_source()
2339 (pmc->multi.imr_ifindex == imr.imr_ifindex)) in ip_mc_source()
2342 if (!pmc) { /* must have a prior join */ in ip_mc_source()
2347 if (pmc->sflist) { in ip_mc_source()
2348 if (pmc->sfmode != omode) { in ip_mc_source()
2352 } else if (pmc->sfmode != omode) { in ip_mc_source()
2355 ip_mc_del_src(in_dev, &mreqs->imr_multiaddr, pmc->sfmode, 0, in ip_mc_source()
2357 pmc->sfmode = omode; in ip_mc_source()
2360 psl = rtnl_dereference(pmc->sflist); in ip_mc_source()
2417 rcu_assign_pointer(pmc->sflist, newpsl); in ip_mc_source()
2450 struct ip_mc_socklist *pmc; in ip_mc_msfilter() local
2481 for_each_pmc_rtnl(inet, pmc) { in ip_mc_msfilter()
2482 if (pmc->multi.imr_multiaddr.s_addr == msf->imsf_multiaddr && in ip_mc_msfilter()
2483 pmc->multi.imr_ifindex == imr.imr_ifindex) in ip_mc_msfilter()
2486 if (!pmc) { /* must have a prior join */ in ip_mc_msfilter()
2514 psl = rtnl_dereference(pmc->sflist); in ip_mc_msfilter()
2516 (void) ip_mc_del_src(in_dev, &msf->imsf_multiaddr, pmc->sfmode, in ip_mc_msfilter()
2522 (void) ip_mc_del_src(in_dev, &msf->imsf_multiaddr, pmc->sfmode, in ip_mc_msfilter()
2525 rcu_assign_pointer(pmc->sflist, newpsl); in ip_mc_msfilter()
2528 pmc->sfmode = msf->imsf_fmode; in ip_mc_msfilter()
2541 struct ip_mc_socklist *pmc; in ip_mc_msfget() local
2563 for_each_pmc_rtnl(inet, pmc) { in ip_mc_msfget()
2564 if (pmc->multi.imr_multiaddr.s_addr == msf->imsf_multiaddr && in ip_mc_msfget()
2565 pmc->multi.imr_ifindex == imr.imr_ifindex) in ip_mc_msfget()
2568 if (!pmc) /* must have a prior join */ in ip_mc_msfget()
2570 msf->imsf_fmode = pmc->sfmode; in ip_mc_msfget()
2571 psl = rtnl_dereference(pmc->sflist); in ip_mc_msfget()
2601 struct ip_mc_socklist *pmc; in ip_mc_gsfget() local
2614 for_each_pmc_rtnl(inet, pmc) { in ip_mc_gsfget()
2615 if (pmc->multi.imr_multiaddr.s_addr == addr && in ip_mc_gsfget()
2616 pmc->multi.imr_ifindex == gsf->gf_interface) in ip_mc_gsfget()
2619 if (!pmc) /* must have a prior join */ in ip_mc_gsfget()
2621 gsf->gf_fmode = pmc->sfmode; in ip_mc_gsfget()
2622 psl = rtnl_dereference(pmc->sflist); in ip_mc_gsfget()
2648 struct ip_mc_socklist *pmc; in ip_mc_sf_allow() local
2658 for_each_pmc_rcu(inet, pmc) { in ip_mc_sf_allow()
2659 if (pmc->multi.imr_multiaddr.s_addr == loc_addr && in ip_mc_sf_allow()
2660 (pmc->multi.imr_ifindex == dif || in ip_mc_sf_allow()
2661 (sdif && pmc->multi.imr_ifindex == sdif))) in ip_mc_sf_allow()
2665 if (!pmc) in ip_mc_sf_allow()
2667 psl = rcu_dereference(pmc->sflist); in ip_mc_sf_allow()
2668 ret = (pmc->sfmode == MCAST_EXCLUDE); in ip_mc_sf_allow()
2677 if (pmc->sfmode == MCAST_INCLUDE && i >= psl->sl_count) in ip_mc_sf_allow()
2679 if (pmc->sfmode == MCAST_EXCLUDE && i < psl->sl_count) in ip_mc_sf_allow()