Lines Matching +full:route +full:- +full:ptp
1 // SPDX-License-Identifier: GPL-2.0-or-later
53 #include <linux/route.h>
100 return (cstamp - INITIAL_JIFFIES) * 100UL / HZ; in cstamp_delta()
315 if (del_timer(&idev->rs_timer)) in addrconf_del_rs_timer()
321 if (cancel_delayed_work(&ifp->dad_work)) in addrconf_del_dad_work()
328 if (!mod_timer(&idev->rs_timer, jiffies + when)) in addrconf_mod_rs_timer()
336 if (mod_delayed_work(addrconf_wq, &ifp->dad_work, delay)) in addrconf_mod_dad_work()
344 idev->stats.ipv6 = alloc_percpu_gfp(struct ipstats_mib, GFP_KERNEL_ACCOUNT); in snmp6_alloc_dev()
345 if (!idev->stats.ipv6) in snmp6_alloc_dev()
350 addrconf_stats = per_cpu_ptr(idev->stats.ipv6, i); in snmp6_alloc_dev()
351 u64_stats_init(&addrconf_stats->syncp); in snmp6_alloc_dev()
355 idev->stats.icmpv6dev = kzalloc(sizeof(struct icmpv6_mib_device), in snmp6_alloc_dev()
357 if (!idev->stats.icmpv6dev) in snmp6_alloc_dev()
359 idev->stats.icmpv6msgdev = kzalloc(sizeof(struct icmpv6msg_mib_device), in snmp6_alloc_dev()
361 if (!idev->stats.icmpv6msgdev) in snmp6_alloc_dev()
367 kfree(idev->stats.icmpv6dev); in snmp6_alloc_dev()
369 free_percpu(idev->stats.ipv6); in snmp6_alloc_dev()
371 return -ENOMEM; in snmp6_alloc_dev()
377 int err = -ENOMEM; in ipv6_add_dev()
381 if (dev->mtu < IPV6_MIN_MTU && dev != blackhole_netdev) in ipv6_add_dev()
382 return ERR_PTR(-EINVAL); in ipv6_add_dev()
388 rwlock_init(&ndev->lock); in ipv6_add_dev()
389 ndev->dev = dev; in ipv6_add_dev()
390 INIT_LIST_HEAD(&ndev->addr_list); in ipv6_add_dev()
391 timer_setup(&ndev->rs_timer, addrconf_rs_timer, 0); in ipv6_add_dev()
392 memcpy(&ndev->cnf, dev_net(dev)->ipv6.devconf_dflt, sizeof(ndev->cnf)); in ipv6_add_dev()
394 if (ndev->cnf.stable_secret.initialized) in ipv6_add_dev()
395 ndev->cnf.addr_gen_mode = IN6_ADDR_GEN_MODE_STABLE_PRIVACY; in ipv6_add_dev()
397 ndev->cnf.mtu6 = dev->mtu; in ipv6_add_dev()
398 ndev->ra_mtu = 0; in ipv6_add_dev()
399 ndev->nd_parms = neigh_parms_alloc(dev, &nd_tbl); in ipv6_add_dev()
400 if (!ndev->nd_parms) { in ipv6_add_dev()
404 if (ndev->cnf.forwarding) in ipv6_add_dev()
407 netdev_hold(dev, &ndev->dev_tracker, GFP_KERNEL); in ipv6_add_dev()
412 neigh_parms_release(&nd_tbl, ndev->nd_parms); in ipv6_add_dev()
413 netdev_put(dev, &ndev->dev_tracker); in ipv6_add_dev()
421 __func__, dev->name); in ipv6_add_dev()
426 refcount_set(&ndev->refcnt, 1); in ipv6_add_dev()
428 if (dev->flags & (IFF_NOARP | IFF_LOOPBACK)) in ipv6_add_dev()
429 ndev->cnf.accept_dad = -1; in ipv6_add_dev()
432 if (dev->type == ARPHRD_SIT && (dev->priv_flags & IFF_ISATAP)) { in ipv6_add_dev()
433 pr_info("%s: Disabled Multicast RS\n", dev->name); in ipv6_add_dev()
434 ndev->cnf.rtr_solicits = 0; in ipv6_add_dev()
438 INIT_LIST_HEAD(&ndev->tempaddr_list); in ipv6_add_dev()
439 ndev->desync_factor = U32_MAX; in ipv6_add_dev()
440 if ((dev->flags&IFF_LOOPBACK) || in ipv6_add_dev()
441 dev->type == ARPHRD_TUNNEL || in ipv6_add_dev()
442 dev->type == ARPHRD_TUNNEL6 || in ipv6_add_dev()
443 dev->type == ARPHRD_SIT || in ipv6_add_dev()
444 dev->type == ARPHRD_NONE) { in ipv6_add_dev()
445 ndev->cnf.use_tempaddr = -1; in ipv6_add_dev()
448 ndev->token = in6addr_any; in ipv6_add_dev()
451 ndev->if_flags |= IF_READY; in ipv6_add_dev()
454 ndev->tstamp = jiffies; in ipv6_add_dev()
464 rcu_assign_pointer(dev->ip6_ptr, ndev); in ipv6_add_dev()
467 /* Join interface-local all-node multicast group */ in ipv6_add_dev()
470 /* Join all-node multicast group */ in ipv6_add_dev()
473 /* Join all-router multicast group if forwarding is set */ in ipv6_add_dev()
474 if (ndev->cnf.forwarding && (dev->flags & IFF_MULTICAST)) in ipv6_add_dev()
480 neigh_parms_release(&nd_tbl, ndev->nd_parms); in ipv6_add_dev()
481 ndev->dead = 1; in ipv6_add_dev()
499 if (dev->flags&IFF_UP) in ipv6_find_idev()
540 return -EMSGSIZE; in inet6_netconf_fill_devconf()
546 ncm->ncm_family = AF_INET6; in inet6_netconf_fill_devconf()
556 READ_ONCE(devconf->forwarding)) < 0) in inet6_netconf_fill_devconf()
561 atomic_read(&devconf->mc_forwarding)) < 0) in inet6_netconf_fill_devconf()
566 READ_ONCE(devconf->proxy_ndp)) < 0) in inet6_netconf_fill_devconf()
571 READ_ONCE(devconf->ignore_routes_with_linkdown)) < 0) in inet6_netconf_fill_devconf()
580 return -EMSGSIZE; in inet6_netconf_fill_devconf()
587 int err = -ENOBUFS; in inet6_netconf_notify_devconf()
596 /* -EMSGSIZE implies BUG in inet6_netconf_msgsize_devconf() */ in inet6_netconf_notify_devconf()
597 WARN_ON(err == -EMSGSIZE); in inet6_netconf_notify_devconf()
621 if (nlh->nlmsg_len < nlmsg_msg_size(sizeof(struct netconfmsg))) { in inet6_netconf_valid_get_req()
623 return -EINVAL; in inet6_netconf_valid_get_req()
646 return -EINVAL; in inet6_netconf_valid_get_req()
657 struct net *net = sock_net(in_skb->sk); in inet6_netconf_get_devconf()
671 return -EINVAL; in inet6_netconf_get_devconf()
673 err = -EINVAL; in inet6_netconf_get_devconf()
677 devconf = net->ipv6.devconf_all; in inet6_netconf_get_devconf()
680 devconf = net->ipv6.devconf_dflt; in inet6_netconf_get_devconf()
685 return -EINVAL; in inet6_netconf_get_devconf()
689 devconf = &in6_dev->cnf; in inet6_netconf_get_devconf()
693 err = -ENOBUFS; in inet6_netconf_get_devconf()
700 nlh->nlmsg_seq, RTM_NEWNETCONF, 0, in inet6_netconf_get_devconf()
703 /* -EMSGSIZE implies BUG in inet6_netconf_msgsize_devconf() */ in inet6_netconf_get_devconf()
704 WARN_ON(err == -EMSGSIZE); in inet6_netconf_get_devconf()
720 u32 res = atomic_read(&net->ipv6.dev_addr_genid) + in inet6_base_seq()
721 READ_ONCE(net->dev_base_seq); in inet6_base_seq()
734 const struct nlmsghdr *nlh = cb->nlh; in inet6_netconf_dump_devconf()
735 struct net *net = sock_net(skb->sk); in inet6_netconf_dump_devconf()
739 } *ctx = (void *)cb->ctx; in inet6_netconf_dump_devconf()
744 if (cb->strict_check) { in inet6_netconf_dump_devconf()
745 struct netlink_ext_ack *extack = cb->extack; in inet6_netconf_dump_devconf()
748 if (nlh->nlmsg_len < nlmsg_msg_size(sizeof(*ncm))) { in inet6_netconf_dump_devconf()
750 return -EINVAL; in inet6_netconf_dump_devconf()
755 return -EINVAL; in inet6_netconf_dump_devconf()
760 for_each_netdev_dump(net, dev, ctx->ifindex) { in inet6_netconf_dump_devconf()
764 err = inet6_netconf_fill_devconf(skb, dev->ifindex, in inet6_netconf_dump_devconf()
765 &idev->cnf, in inet6_netconf_dump_devconf()
766 NETLINK_CB(cb->skb).portid, in inet6_netconf_dump_devconf()
767 nlh->nlmsg_seq, in inet6_netconf_dump_devconf()
774 if (ctx->all_default == 0) { in inet6_netconf_dump_devconf()
776 net->ipv6.devconf_all, in inet6_netconf_dump_devconf()
777 NETLINK_CB(cb->skb).portid, in inet6_netconf_dump_devconf()
778 nlh->nlmsg_seq, in inet6_netconf_dump_devconf()
783 ctx->all_default++; in inet6_netconf_dump_devconf()
785 if (ctx->all_default == 1) { in inet6_netconf_dump_devconf()
787 net->ipv6.devconf_dflt, in inet6_netconf_dump_devconf()
788 NETLINK_CB(cb->skb).portid, in inet6_netconf_dump_devconf()
789 nlh->nlmsg_seq, in inet6_netconf_dump_devconf()
794 ctx->all_default++; in inet6_netconf_dump_devconf()
810 dev = idev->dev; in dev_forward_change()
811 if (idev->cnf.forwarding) in dev_forward_change()
813 if (dev->flags & IFF_MULTICAST) { in dev_forward_change()
814 if (idev->cnf.forwarding) { in dev_forward_change()
825 read_lock_bh(&idev->lock); in dev_forward_change()
826 list_for_each_entry(ifa, &idev->addr_list, if_list) { in dev_forward_change()
827 if (ifa->flags&IFA_F_TENTATIVE) in dev_forward_change()
829 list_add_tail(&ifa->if_list_aux, &tmp_addr_list); in dev_forward_change()
831 read_unlock_bh(&idev->lock); in dev_forward_change()
836 list_del(&ifa->if_list_aux); in dev_forward_change()
837 if (idev->cnf.forwarding) in dev_forward_change()
845 dev->ifindex, &idev->cnf); in dev_forward_change()
857 int changed = (!idev->cnf.forwarding) ^ (!newf); in addrconf_forward_change()
859 WRITE_ONCE(idev->cnf.forwarding, newf); in addrconf_forward_change()
868 struct net *net = (struct net *)table->extra2; in addrconf_fixup_forwarding()
877 if (p == &net->ipv6.devconf_dflt->forwarding) { in addrconf_fixup_forwarding()
882 net->ipv6.devconf_dflt); in addrconf_fixup_forwarding()
887 if (p == &net->ipv6.devconf_all->forwarding) { in addrconf_fixup_forwarding()
888 int old_dflt = net->ipv6.devconf_dflt->forwarding; in addrconf_fixup_forwarding()
890 WRITE_ONCE(net->ipv6.devconf_dflt->forwarding, newf); in addrconf_fixup_forwarding()
895 net->ipv6.devconf_dflt); in addrconf_fixup_forwarding()
902 net->ipv6.devconf_all); in addrconf_fixup_forwarding()
904 dev_forward_change((struct inet6_dev *)table->extra1); in addrconf_fixup_forwarding()
920 int changed = (!idev->cnf.ignore_routes_with_linkdown) ^ (!newf); in addrconf_linkdown_change()
922 WRITE_ONCE(idev->cnf.ignore_routes_with_linkdown, newf); in addrconf_linkdown_change()
927 dev->ifindex, in addrconf_linkdown_change()
928 &idev->cnf); in addrconf_linkdown_change()
935 struct net *net = (struct net *)table->extra2; in addrconf_fixup_linkdown()
944 if (p == &net->ipv6.devconf_dflt->ignore_routes_with_linkdown) { in addrconf_fixup_linkdown()
950 net->ipv6.devconf_dflt); in addrconf_fixup_linkdown()
955 if (p == &net->ipv6.devconf_all->ignore_routes_with_linkdown) { in addrconf_fixup_linkdown()
956 WRITE_ONCE(net->ipv6.devconf_dflt->ignore_routes_with_linkdown, newf); in addrconf_fixup_linkdown()
963 net->ipv6.devconf_all); in addrconf_fixup_linkdown()
976 WARN_ON(!hlist_unhashed(&ifp->addr_lst)); in inet6_ifa_finish_destroy()
982 in6_dev_put(ifp->idev); in inet6_ifa_finish_destroy()
984 if (cancel_delayed_work(&ifp->dad_work)) in inet6_ifa_finish_destroy()
988 if (ifp->state != INET6_IFADDR_STATE_DEAD) { in inet6_ifa_finish_destroy()
1000 int ifp_scope = ipv6_addr_src_scope(&ifp->addr); in ipv6_link_dev_addr()
1003 * Each device address list is sorted in order of scope - in ipv6_link_dev_addr()
1006 list_for_each(p, &idev->addr_list) { in ipv6_link_dev_addr()
1009 if (ifp_scope >= ipv6_addr_src_scope(&ifa->addr)) in ipv6_link_dev_addr()
1013 list_add_tail_rcu(&ifp->if_list, p); in ipv6_link_dev_addr()
1028 hlist_for_each_entry(ifp, &net->ipv6.inet6_addr_lst[hash], addr_lst) { in ipv6_chk_same_addr()
1029 if (ipv6_addr_equal(&ifp->addr, addr)) { in ipv6_chk_same_addr()
1030 if (!dev || ifp->idev->dev == dev) in ipv6_chk_same_addr()
1040 unsigned int hash = inet6_addr_hash(net, &ifa->addr); in ipv6_add_addr_hash()
1043 spin_lock_bh(&net->ipv6.addrconf_hash_lock); in ipv6_add_addr_hash()
1046 if (ipv6_chk_same_addr(net, &ifa->addr, dev, hash)) { in ipv6_add_addr_hash()
1048 err = -EEXIST; in ipv6_add_addr_hash()
1050 hlist_add_head_rcu(&ifa->addr_lst, &net->ipv6.inet6_addr_lst[hash]); in ipv6_add_addr_hash()
1053 spin_unlock_bh(&net->ipv6.addrconf_hash_lock); in ipv6_add_addr_hash()
1065 int addr_type = ipv6_addr_type(cfg->pfx); in ipv6_add_addr()
1066 struct net *net = dev_net(idev->dev); in ipv6_add_addr()
1073 return ERR_PTR(-EADDRNOTAVAIL); in ipv6_add_addr()
1075 !(cfg->ifa_flags & IFA_F_MCAUTOJOIN)) { in ipv6_add_addr()
1077 return ERR_PTR(-EADDRNOTAVAIL); in ipv6_add_addr()
1078 } else if (!(idev->dev->flags & IFF_LOOPBACK) && in ipv6_add_addr()
1079 !netif_is_l3_master(idev->dev) && in ipv6_add_addr()
1082 return ERR_PTR(-EADDRNOTAVAIL); in ipv6_add_addr()
1085 if (idev->dead) { in ipv6_add_addr()
1087 err = -ENODEV; in ipv6_add_addr()
1091 if (idev->cnf.disable_ipv6) { in ipv6_add_addr()
1093 err = -EACCES; in ipv6_add_addr()
1102 .i6vi_addr = *cfg->pfx, in ipv6_add_addr()
1115 err = -ENOBUFS; in ipv6_add_addr()
1119 f6i = addrconf_f6i_alloc(net, idev, cfg->pfx, false, gfp_flags, extack); in ipv6_add_addr()
1126 neigh_parms_data_state_setall(idev->nd_parms); in ipv6_add_addr()
1128 ifa->addr = *cfg->pfx; in ipv6_add_addr()
1129 if (cfg->peer_pfx) in ipv6_add_addr()
1130 ifa->peer_addr = *cfg->peer_pfx; in ipv6_add_addr()
1132 spin_lock_init(&ifa->lock); in ipv6_add_addr()
1133 INIT_DELAYED_WORK(&ifa->dad_work, addrconf_dad_work); in ipv6_add_addr()
1134 INIT_HLIST_NODE(&ifa->addr_lst); in ipv6_add_addr()
1135 ifa->scope = cfg->scope; in ipv6_add_addr()
1136 ifa->prefix_len = cfg->plen; in ipv6_add_addr()
1137 ifa->rt_priority = cfg->rt_priority; in ipv6_add_addr()
1138 ifa->flags = cfg->ifa_flags; in ipv6_add_addr()
1139 ifa->ifa_proto = cfg->ifa_proto; in ipv6_add_addr()
1141 if (!(cfg->ifa_flags & IFA_F_NODAD)) in ipv6_add_addr()
1142 ifa->flags |= IFA_F_TENTATIVE; in ipv6_add_addr()
1143 ifa->valid_lft = cfg->valid_lft; in ipv6_add_addr()
1144 ifa->prefered_lft = cfg->preferred_lft; in ipv6_add_addr()
1145 ifa->cstamp = ifa->tstamp = jiffies; in ipv6_add_addr()
1146 ifa->tokenized = false; in ipv6_add_addr()
1148 ifa->rt = f6i; in ipv6_add_addr()
1150 ifa->idev = idev; in ipv6_add_addr()
1154 refcount_set(&ifa->refcnt, 1); in ipv6_add_addr()
1158 err = ipv6_add_addr_hash(idev->dev, ifa); in ipv6_add_addr()
1164 write_lock_bh(&idev->lock); in ipv6_add_addr()
1169 if (ifa->flags&IFA_F_TEMPORARY) { in ipv6_add_addr()
1170 list_add(&ifa->tmp_list, &idev->tempaddr_list); in ipv6_add_addr()
1175 write_unlock_bh(&idev->lock); in ipv6_add_addr()
1185 if (ifa->idev) in ipv6_add_addr()
1186 in6_dev_put(ifa->idev); in ipv6_add_addr()
1196 CLEANUP_PREFIX_RT_NOP, /* no cleanup action for prefix route */
1197 CLEANUP_PREFIX_RT_DEL, /* delete the prefix route */
1198 CLEANUP_PREFIX_RT_EXPIRE, /* update the lifetime of the prefix route */
1202 * Check, whether the prefix for ifp would still need a prefix route
1223 struct inet6_dev *idev = ifp->idev; in check_cleanup_prefix_route()
1229 list_for_each_entry(ifa, &idev->addr_list, if_list) { in check_cleanup_prefix_route()
1232 if (ifa->prefix_len != ifp->prefix_len || in check_cleanup_prefix_route()
1233 !ipv6_prefix_equal(&ifa->addr, &ifp->addr, in check_cleanup_prefix_route()
1234 ifp->prefix_len)) in check_cleanup_prefix_route()
1236 if (ifa->flags & (IFA_F_PERMANENT | IFA_F_NOPREFIXROUTE)) in check_cleanup_prefix_route()
1241 spin_lock(&ifa->lock); in check_cleanup_prefix_route()
1243 lifetime = addrconf_timeout_fixup(ifa->valid_lft, HZ); in check_cleanup_prefix_route()
1249 if (time_before(*expires, ifa->tstamp + lifetime * HZ)) in check_cleanup_prefix_route()
1250 *expires = ifa->tstamp + lifetime * HZ; in check_cleanup_prefix_route()
1251 spin_unlock(&ifa->lock); in check_cleanup_prefix_route()
1264 f6i = addrconf_get_prefix_route(del_peer ? &ifp->peer_addr : &ifp->addr, in cleanup_prefix_route()
1265 ifp->prefix_len, in cleanup_prefix_route()
1266 ifp->idev->dev, 0, RTF_DEFAULT, true); in cleanup_prefix_route()
1269 ip6_del_rt(dev_net(ifp->idev->dev), f6i, false); in cleanup_prefix_route()
1271 if (!(f6i->fib6_flags & RTF_EXPIRES)) { in cleanup_prefix_route()
1272 table = f6i->fib6_table; in cleanup_prefix_route()
1273 spin_lock_bh(&table->tb6_lock); in cleanup_prefix_route()
1278 spin_unlock_bh(&table->tb6_lock); in cleanup_prefix_route()
1291 struct net *net = dev_net(ifp->idev->dev); in ipv6_del_addr()
1297 spin_lock_bh(&ifp->lock); in ipv6_del_addr()
1298 state = ifp->state; in ipv6_del_addr()
1299 ifp->state = INET6_IFADDR_STATE_DEAD; in ipv6_del_addr()
1300 spin_unlock_bh(&ifp->lock); in ipv6_del_addr()
1305 spin_lock_bh(&net->ipv6.addrconf_hash_lock); in ipv6_del_addr()
1306 hlist_del_init_rcu(&ifp->addr_lst); in ipv6_del_addr()
1307 spin_unlock_bh(&net->ipv6.addrconf_hash_lock); in ipv6_del_addr()
1309 write_lock_bh(&ifp->idev->lock); in ipv6_del_addr()
1311 if (ifp->flags&IFA_F_TEMPORARY) { in ipv6_del_addr()
1312 list_del(&ifp->tmp_list); in ipv6_del_addr()
1313 if (ifp->ifpub) { in ipv6_del_addr()
1314 in6_ifa_put(ifp->ifpub); in ipv6_del_addr()
1315 ifp->ifpub = NULL; in ipv6_del_addr()
1320 if (ifp->flags & IFA_F_PERMANENT && !(ifp->flags & IFA_F_NOPREFIXROUTE)) in ipv6_del_addr()
1323 list_del_rcu(&ifp->if_list); in ipv6_del_addr()
1326 write_unlock_bh(&ifp->idev->lock); in ipv6_del_addr()
1347 return READ_ONCE(idev->cnf.regen_min_advance) + in ipv6_get_regen_advance()
1348 READ_ONCE(idev->cnf.regen_max_retry) * in ipv6_get_regen_advance()
1349 READ_ONCE(idev->cnf.dad_transmits) * in ipv6_get_regen_advance()
1350 max(NEIGH_VAR(idev->nd_parms, RETRANS_TIME), HZ/100) / HZ; in ipv6_get_regen_advance()
1355 struct inet6_dev *idev = ifp->idev; in ipv6_create_tempaddr()
1367 write_lock_bh(&idev->lock); in ipv6_create_tempaddr()
1371 if (READ_ONCE(idev->cnf.use_tempaddr) <= 0) { in ipv6_create_tempaddr()
1372 write_unlock_bh(&idev->lock); in ipv6_create_tempaddr()
1375 ret = -1; in ipv6_create_tempaddr()
1378 spin_lock_bh(&ifp->lock); in ipv6_create_tempaddr()
1379 if (ifp->regen_count++ >= READ_ONCE(idev->cnf.regen_max_retry)) { in ipv6_create_tempaddr()
1380 WRITE_ONCE(idev->cnf.use_tempaddr, -1); /*XXX*/ in ipv6_create_tempaddr()
1381 spin_unlock_bh(&ifp->lock); in ipv6_create_tempaddr()
1382 write_unlock_bh(&idev->lock); in ipv6_create_tempaddr()
1383 pr_warn("%s: regeneration time exceeded - disabled temporary address support\n", in ipv6_create_tempaddr()
1386 ret = -1; in ipv6_create_tempaddr()
1390 memcpy(addr.s6_addr, ifp->addr.s6_addr, 8); in ipv6_create_tempaddr()
1393 age = (now - ifp->tstamp) / HZ; in ipv6_create_tempaddr()
1398 * idev->desync_factor if it's larger in ipv6_create_tempaddr()
1400 cnf_temp_preferred_lft = READ_ONCE(idev->cnf.temp_prefered_lft); in ipv6_create_tempaddr()
1402 READ_ONCE(idev->cnf.max_desync_factor), in ipv6_create_tempaddr()
1403 cnf_temp_preferred_lft - regen_advance); in ipv6_create_tempaddr()
1405 if (unlikely(idev->desync_factor > max_desync_factor)) { in ipv6_create_tempaddr()
1407 get_random_bytes(&idev->desync_factor, in ipv6_create_tempaddr()
1408 sizeof(idev->desync_factor)); in ipv6_create_tempaddr()
1409 idev->desync_factor %= max_desync_factor; in ipv6_create_tempaddr()
1411 idev->desync_factor = 0; in ipv6_create_tempaddr()
1415 if_public_preferred_lft = ifp->prefered_lft; in ipv6_create_tempaddr()
1418 cfg.valid_lft = min_t(__u32, ifp->valid_lft, in ipv6_create_tempaddr()
1419 READ_ONCE(idev->cnf.temp_valid_lft) + age); in ipv6_create_tempaddr()
1420 cfg.preferred_lft = cnf_temp_preferred_lft + age - idev->desync_factor; in ipv6_create_tempaddr()
1424 cfg.plen = ifp->prefix_len; in ipv6_create_tempaddr()
1425 tmp_tstamp = ifp->tstamp; in ipv6_create_tempaddr()
1426 spin_unlock_bh(&ifp->lock); in ipv6_create_tempaddr()
1428 write_unlock_bh(&idev->lock); in ipv6_create_tempaddr()
1445 * of the public address or TEMP_PREFERRED_LIFETIME - in ipv6_create_tempaddr()
1450 * ifp->prefered_lft. in ipv6_create_tempaddr()
1455 age = (now - tmp_tstamp + ADDRCONF_TIMER_FUZZ_MINUS) / HZ; in ipv6_create_tempaddr()
1462 ret = -1; in ipv6_create_tempaddr()
1469 if (ifp->flags & IFA_F_OPTIMISTIC) in ipv6_create_tempaddr()
1480 write_lock_bh(&idev->lock); in ipv6_create_tempaddr()
1484 spin_lock_bh(&ift->lock); in ipv6_create_tempaddr()
1485 ift->ifpub = ifp; in ipv6_create_tempaddr()
1486 ift->cstamp = now; in ipv6_create_tempaddr()
1487 ift->tstamp = tmp_tstamp; in ipv6_create_tempaddr()
1488 spin_unlock_bh(&ift->lock); in ipv6_create_tempaddr()
1549 if (!READ_ONCE(net->ipv6.devconf_all->optimistic_dad) && in ipv6_use_optimistic_addr()
1550 !READ_ONCE(idev->cnf.optimistic_dad)) in ipv6_use_optimistic_addr()
1552 if (!READ_ONCE(net->ipv6.devconf_all->use_optimistic) && in ipv6_use_optimistic_addr()
1553 !READ_ONCE(idev->cnf.use_optimistic)) in ipv6_use_optimistic_addr()
1568 if (!READ_ONCE(net->ipv6.devconf_all->optimistic_dad) && in ipv6_allow_optimistic_dad()
1569 !READ_ONCE(idev->cnf.optimistic_dad)) in ipv6_allow_optimistic_dad()
1585 if (i <= score->rule) { in ipv6_get_saddr_eval()
1588 ret = score->scopedist; in ipv6_get_saddr_eval()
1591 ret = score->matchlen; in ipv6_get_saddr_eval()
1594 ret = !!test_bit(i, score->scorebits); in ipv6_get_saddr_eval()
1602 ret = !!score->ifa; in ipv6_get_saddr_eval()
1606 ret = ipv6_addr_equal(&score->ifa->addr, dst->addr); in ipv6_get_saddr_eval()
1613 * -1 | d 15 in ipv6_get_saddr_eval()
1614 * ---+--+-+---> scope in ipv6_get_saddr_eval()
1617 * B-d | \ in ipv6_get_saddr_eval()
1618 * | \ <- smaller scope is better if in ipv6_get_saddr_eval()
1619 * B-15 | \ if scope is enough for destination. in ipv6_get_saddr_eval()
1620 * | ret = B - scope (-1 <= scope >= d <= 15). in ipv6_get_saddr_eval()
1621 * d-C-1 | / in ipv6_get_saddr_eval()
1622 * |/ <- greater is better in ipv6_get_saddr_eval()
1623 * -C / if scope is not enough for destination. in ipv6_get_saddr_eval()
1624 * /| ret = scope - C (-1 <= d < scope <= 15). in ipv6_get_saddr_eval()
1626 * d - C - 1 < B -15 (for all -1 <= d <= 15). in ipv6_get_saddr_eval()
1627 * C > d + 14 - B >= 15 + 14 - B = 29 - B. in ipv6_get_saddr_eval()
1630 ret = __ipv6_addr_src_scope(score->addr_type); in ipv6_get_saddr_eval()
1631 if (ret >= dst->scope) in ipv6_get_saddr_eval()
1632 ret = -ret; in ipv6_get_saddr_eval()
1634 ret -= 128; /* 30 is enough */ in ipv6_get_saddr_eval()
1635 score->scopedist = ret; in ipv6_get_saddr_eval()
1642 if (!ipv6_use_optimistic_addr(net, score->ifa->idev)) in ipv6_get_saddr_eval()
1644 ret = ipv6_saddr_preferred(score->addr_type) || in ipv6_get_saddr_eval()
1645 !(score->ifa->flags & avoid); in ipv6_get_saddr_eval()
1652 int prefhome = !(dst->prefs & IPV6_PREFER_SRC_COA); in ipv6_get_saddr_eval()
1653 ret = !(score->ifa->flags & IFA_F_HOMEADDRESS) ^ prefhome; in ipv6_get_saddr_eval()
1659 ret = (!dst->ifindex || in ipv6_get_saddr_eval()
1660 dst->ifindex == score->ifa->idev->dev->ifindex); in ipv6_get_saddr_eval()
1665 &score->ifa->addr, score->addr_type, in ipv6_get_saddr_eval()
1666 score->ifa->idev->dev->ifindex) == dst->label; in ipv6_get_saddr_eval()
1673 int preftmp = dst->prefs & (IPV6_PREFER_SRC_PUBLIC|IPV6_PREFER_SRC_TMP) ? in ipv6_get_saddr_eval()
1674 !!(dst->prefs & IPV6_PREFER_SRC_TMP) : in ipv6_get_saddr_eval()
1675 READ_ONCE(score->ifa->idev->cnf.use_tempaddr) >= 2; in ipv6_get_saddr_eval()
1676 ret = (!(score->ifa->flags & IFA_F_TEMPORARY)) ^ preftmp; in ipv6_get_saddr_eval()
1680 /* Rule 8-: Prefer ORCHID vs ORCHID or in ipv6_get_saddr_eval()
1681 * non-ORCHID vs non-ORCHID in ipv6_get_saddr_eval()
1683 ret = !(ipv6_addr_orchid(&score->ifa->addr) ^ in ipv6_get_saddr_eval()
1684 ipv6_addr_orchid(dst->addr)); in ipv6_get_saddr_eval()
1688 ret = ipv6_addr_diff(&score->ifa->addr, dst->addr); in ipv6_get_saddr_eval()
1689 if (ret > score->ifa->prefix_len) in ipv6_get_saddr_eval()
1690 ret = score->ifa->prefix_len; in ipv6_get_saddr_eval()
1691 score->matchlen = ret; in ipv6_get_saddr_eval()
1698 ret = !(score->ifa->flags & IFA_F_OPTIMISTIC); in ipv6_get_saddr_eval()
1706 __set_bit(i, score->scorebits); in ipv6_get_saddr_eval()
1707 score->rule = i; in ipv6_get_saddr_eval()
1718 struct ipv6_saddr_score *score = &scores[1 - hiscore_idx], *hiscore = &scores[hiscore_idx]; in __ipv6_dev_get_saddr()
1720 list_for_each_entry_rcu(score->ifa, &idev->addr_list, if_list) { in __ipv6_dev_get_saddr()
1724 * - Tentative Address (RFC2462 section 5.4) in __ipv6_dev_get_saddr()
1725 * - A tentative address is not considered in __ipv6_dev_get_saddr()
1728 * - Candidate Source Address (section 4) in __ipv6_dev_get_saddr()
1729 * - In any case, anycast addresses, multicast in __ipv6_dev_get_saddr()
1733 if ((score->ifa->flags & IFA_F_TENTATIVE) && in __ipv6_dev_get_saddr()
1734 (!(score->ifa->flags & IFA_F_OPTIMISTIC))) in __ipv6_dev_get_saddr()
1737 score->addr_type = __ipv6_addr_type(&score->ifa->addr); in __ipv6_dev_get_saddr()
1739 if (unlikely(score->addr_type == IPV6_ADDR_ANY || in __ipv6_dev_get_saddr()
1740 score->addr_type & IPV6_ADDR_MULTICAST)) { in __ipv6_dev_get_saddr()
1742 idev->dev->name); in __ipv6_dev_get_saddr()
1746 score->rule = -1; in __ipv6_dev_get_saddr()
1747 bitmap_zero(score->scorebits, IPV6_SADDR_RULE_MAX); in __ipv6_dev_get_saddr()
1757 score->scopedist > 0) { in __ipv6_dev_get_saddr()
1771 hiscore_idx = 1 - hiscore_idx; in __ipv6_dev_get_saddr()
1774 score->ifa = hiscore->ifa; in __ipv6_dev_get_saddr()
1821 dst.ifindex = dst_dev ? dst_dev->ifindex : 0; in ipv6_dev_get_saddr()
1826 scores[hiscore_idx].rule = -1; in ipv6_dev_get_saddr()
1832 * - multicast and link-local destination address, in ipv6_dev_get_saddr()
1837 * (- For site-local destination addresses, the in ipv6_dev_get_saddr()
1842 * - "It is RECOMMENDED that the candidate source addresses in ipv6_dev_get_saddr()
1851 (idev && READ_ONCE(idev->cnf.use_oif_addrs_only))) { in ipv6_dev_get_saddr()
1869 master_idx = master->ifindex; in ipv6_dev_get_saddr()
1895 if (!hiscore->ifa) in ipv6_dev_get_saddr()
1896 ret = -EADDRNOTAVAIL; in ipv6_dev_get_saddr()
1898 *saddr = hiscore->ifa->addr; in ipv6_dev_get_saddr()
1909 int err = -EADDRNOTAVAIL; in __ipv6_get_lladdr()
1911 list_for_each_entry_reverse(ifp, &idev->addr_list, if_list) { in __ipv6_get_lladdr()
1912 if (ifp->scope > IFA_LINK) in __ipv6_get_lladdr()
1914 if (ifp->scope == IFA_LINK && in __ipv6_get_lladdr()
1915 !(ifp->flags & banned_flags)) { in __ipv6_get_lladdr()
1916 *addr = ifp->addr; in __ipv6_get_lladdr()
1928 int err = -EADDRNOTAVAIL; in ipv6_get_lladdr()
1933 read_lock_bh(&idev->lock); in ipv6_get_lladdr()
1935 read_unlock_bh(&idev->lock); in ipv6_get_lladdr()
1947 list_for_each_entry_rcu(ifp, &idev->addr_list, if_list) in ipv6_count_addresses()
1986 hlist_for_each_entry_rcu(ifp, &net->ipv6.inet6_addr_lst[hash], addr_lst) { in __ipv6_chk_addr_and_flags()
1987 ndev = ifp->idev->dev; in __ipv6_chk_addr_and_flags()
1995 ifp_flags = (ifp->flags&IFA_F_OPTIMISTIC) in __ipv6_chk_addr_and_flags()
1996 ? (ifp->flags&~IFA_F_TENTATIVE) in __ipv6_chk_addr_and_flags()
1997 : ifp->flags; in __ipv6_chk_addr_and_flags()
1998 if (ipv6_addr_equal(&ifp->addr, addr) && in __ipv6_chk_addr_and_flags()
2001 !(ifp->scope&(IFA_LINK|IFA_HOST) || strict))) { in __ipv6_chk_addr_and_flags()
2034 list_for_each_entry_rcu(ifa, &idev->addr_list, if_list) { in ipv6_chk_custom_prefix()
2035 ret = ipv6_prefix_equal(addr, &ifa->addr, prefix_len); in ipv6_chk_custom_prefix()
2056 list_for_each_entry_rcu(ifa, &idev->addr_list, if_list) { in ipv6_chk_prefix()
2057 onlink = ipv6_prefix_equal(addr, &ifa->addr, in ipv6_chk_prefix()
2058 ifa->prefix_len); in ipv6_chk_prefix()
2069 * ipv6_dev_find - find the first device with a given source address.
2091 hlist_for_each_entry_rcu(ifp, &net->ipv6.inet6_addr_lst[hash], addr_lst) { in ipv6_get_ifaddr()
2092 if (ipv6_addr_equal(&ifp->addr, addr)) { in ipv6_get_ifaddr()
2093 if (!dev || ifp->idev->dev == dev || in ipv6_get_ifaddr()
2094 !(ifp->scope&(IFA_LINK|IFA_HOST) || strict)) { in ipv6_get_ifaddr()
2112 ifp->flags |= IFA_F_DADFAILED; in addrconf_dad_stop()
2114 if (ifp->flags&IFA_F_TEMPORARY) { in addrconf_dad_stop()
2116 spin_lock_bh(&ifp->lock); in addrconf_dad_stop()
2117 ifpub = ifp->ifpub; in addrconf_dad_stop()
2120 spin_unlock_bh(&ifp->lock); in addrconf_dad_stop()
2124 spin_unlock_bh(&ifp->lock); in addrconf_dad_stop()
2127 } else if (ifp->flags&IFA_F_PERMANENT || !dad_failed) { in addrconf_dad_stop()
2128 spin_lock_bh(&ifp->lock); in addrconf_dad_stop()
2130 ifp->flags |= IFA_F_TENTATIVE; in addrconf_dad_stop()
2132 ifp->flags &= ~IFA_F_OPTIMISTIC; in addrconf_dad_stop()
2133 spin_unlock_bh(&ifp->lock); in addrconf_dad_stop()
2144 int err = -ENOENT; in addrconf_dad_end()
2146 spin_lock_bh(&ifp->lock); in addrconf_dad_end()
2147 if (ifp->state == INET6_IFADDR_STATE_DAD) { in addrconf_dad_end()
2148 ifp->state = INET6_IFADDR_STATE_POSTDAD; in addrconf_dad_end()
2151 spin_unlock_bh(&ifp->lock); in addrconf_dad_end()
2158 struct inet6_dev *idev = ifp->idev; in addrconf_dad_failure()
2159 struct net *net = dev_net(idev->dev); in addrconf_dad_failure()
2168 ifp->idev->dev->name, &ifp->addr, eth_hdr(skb)->h_source); in addrconf_dad_failure()
2170 spin_lock_bh(&ifp->lock); in addrconf_dad_failure()
2172 if (ifp->flags & IFA_F_STABLE_PRIVACY) { in addrconf_dad_failure()
2175 int retries = ifp->stable_privacy_retry + 1; in addrconf_dad_failure()
2178 .plen = ifp->prefix_len, in addrconf_dad_failure()
2179 .ifa_flags = ifp->flags, in addrconf_dad_failure()
2180 .valid_lft = ifp->valid_lft, in addrconf_dad_failure()
2181 .preferred_lft = ifp->prefered_lft, in addrconf_dad_failure()
2182 .scope = ifp->scope, in addrconf_dad_failure()
2185 if (retries > net->ipv6.sysctl.idgen_retries) { in addrconf_dad_failure()
2187 ifp->idev->dev->name); in addrconf_dad_failure()
2191 new_addr = ifp->addr; in addrconf_dad_failure()
2196 spin_unlock_bh(&ifp->lock); in addrconf_dad_failure()
2198 max_addresses = READ_ONCE(idev->cnf.max_addresses); in addrconf_dad_failure()
2204 ifp->idev->dev->name); in addrconf_dad_failure()
2210 spin_lock_bh(&ifp2->lock); in addrconf_dad_failure()
2211 ifp2->stable_privacy_retry = retries; in addrconf_dad_failure()
2212 ifp2->state = INET6_IFADDR_STATE_PREDAD; in addrconf_dad_failure()
2213 spin_unlock_bh(&ifp2->lock); in addrconf_dad_failure()
2215 addrconf_mod_dad_work(ifp2, net->ipv6.sysctl.idgen_delay); in addrconf_dad_failure()
2218 spin_lock_bh(&ifp->lock); in addrconf_dad_failure()
2223 ifp->state = INET6_IFADDR_STATE_ERRDAD; in addrconf_dad_failure()
2224 spin_unlock_bh(&ifp->lock); in addrconf_dad_failure()
2236 if (dev->flags&(IFF_LOOPBACK|IFF_NOARP)) in addrconf_join_solict()
2248 if (idev->dev->flags&(IFF_LOOPBACK|IFF_NOARP)) in addrconf_leave_solict()
2260 if (ifp->prefix_len >= 127) /* RFC 6164 */ in addrconf_join_anycast()
2262 ipv6_addr_prefix(&addr, &ifp->addr, ifp->prefix_len); in addrconf_join_anycast()
2265 __ipv6_dev_ac_inc(ifp->idev, &addr); in addrconf_join_anycast()
2273 if (ifp->prefix_len >= 127) /* RFC 6164 */ in addrconf_leave_anycast()
2275 ipv6_addr_prefix(&addr, &ifp->addr, ifp->prefix_len); in addrconf_leave_anycast()
2278 __ipv6_dev_ac_dec(ifp->idev, &addr); in addrconf_leave_anycast()
2283 switch (dev->addr_len) { in addrconf_ifid_6lowpan()
2285 memcpy(eui, dev->dev_addr, 3); in addrconf_ifid_6lowpan()
2288 memcpy(eui + 5, dev->dev_addr + 3, 3); in addrconf_ifid_6lowpan()
2291 memcpy(eui, dev->dev_addr, EUI64_ADDR_LEN); in addrconf_ifid_6lowpan()
2295 return -1; in addrconf_ifid_6lowpan()
2305 if (dev->addr_len != FWNET_ALEN) in addrconf_ifid_ieee1394()
2306 return -1; in addrconf_ifid_ieee1394()
2308 ha = (const union fwnet_hwaddr *)dev->dev_addr; in addrconf_ifid_ieee1394()
2310 memcpy(eui, &ha->uc.uniq_id, sizeof(ha->uc.uniq_id)); in addrconf_ifid_ieee1394()
2317 /* XXX: inherit EUI-64 from other interface -- yoshfuji */ in addrconf_ifid_arcnet()
2318 if (dev->addr_len != ARCNET_ALEN) in addrconf_ifid_arcnet()
2319 return -1; in addrconf_ifid_arcnet()
2321 eui[7] = *(u8 *)dev->dev_addr; in addrconf_ifid_arcnet()
2327 if (dev->addr_len != INFINIBAND_ALEN) in addrconf_ifid_infiniband()
2328 return -1; in addrconf_ifid_infiniband()
2329 memcpy(eui, dev->dev_addr + 12, 8); in addrconf_ifid_infiniband()
2337 return -1; in __ipv6_isatap_ifid()
2353 if (dev->priv_flags & IFF_ISATAP) in addrconf_ifid_sit()
2354 return __ipv6_isatap_ifid(eui, *(__be32 *)dev->dev_addr); in addrconf_ifid_sit()
2355 return -1; in addrconf_ifid_sit()
2360 return __ipv6_isatap_ifid(eui, *(__be32 *)dev->dev_addr); in addrconf_ifid_gre()
2365 memcpy(eui, dev->perm_addr, 3); in addrconf_ifid_ip6tnl()
2366 memcpy(eui + 5, dev->perm_addr + 3, 3); in addrconf_ifid_ip6tnl()
2375 switch (dev->type) { in ipv6_generate_eui64()
2397 return -1; in ipv6_generate_eui64()
2402 int err = -1; in ipv6_inherit_eui64()
2405 read_lock_bh(&idev->lock); in ipv6_inherit_eui64()
2406 list_for_each_entry_reverse(ifp, &idev->addr_list, if_list) { in ipv6_inherit_eui64()
2407 if (ifp->scope > IFA_LINK) in ipv6_inherit_eui64()
2409 if (ifp->scope == IFA_LINK && !(ifp->flags&IFA_F_TENTATIVE)) { in ipv6_inherit_eui64()
2410 memcpy(eui, ifp->addr.s6_addr+8, 8); in ipv6_inherit_eui64()
2415 read_unlock_bh(&idev->lock); in ipv6_inherit_eui64()
2420 * draft-ietf-6man-rfc4941bis, Section 3.3.1
2426 get_random_bytes(&addr->s6_addr[8], 8); in ipv6_gen_rnd_iid()
2428 /* <draft-ietf-6man-rfc4941bis-08.txt>, Section 3.3.1: in ipv6_gen_rnd_iid()
2431 * - Reserved IPv6 Interface Identifiers in ipv6_gen_rnd_iid()
2432 * - XXX: already assigned to an address on the device in ipv6_gen_rnd_iid()
2435 /* Subnet-router anycast: 0000:0000:0000:0000 */ in ipv6_gen_rnd_iid()
2436 if (!(addr->s6_addr32[2] | addr->s6_addr32[3])) in ipv6_gen_rnd_iid()
2439 /* IANA Ethernet block: 0200:5EFF:FE00:0000-0200:5EFF:FE00:5212 in ipv6_gen_rnd_iid()
2441 * IANA Ethernet block: 0200:5EFF:FE00:5214-0200:5EFF:FEFF:FFFF in ipv6_gen_rnd_iid()
2443 if (ntohl(addr->s6_addr32[2]) == 0x02005eff && in ipv6_gen_rnd_iid()
2444 (ntohl(addr->s6_addr32[3]) & 0Xff000000) == 0xfe000000) in ipv6_gen_rnd_iid()
2448 if (ntohl(addr->s6_addr32[2]) == 0xfdffffff && in ipv6_gen_rnd_iid()
2449 ntohl(addr->s6_addr32[3]) >= 0Xffffff80) in ipv6_gen_rnd_iid()
2454 * Add prefix route.
2465 .fc_ifindex = dev->ifindex, in addrconf_prefix_route()
2476 /* Prevent useless cloning on PtP SIT. in addrconf_prefix_route()
2478 class of non-broadcast devices need not cloning. in addrconf_prefix_route()
2481 if (dev->type == ARPHRD_SIT && (dev->flags & IFF_POINTOPOINT)) in addrconf_prefix_route()
2505 fn = fib6_locate(&table->tb6_root, pfx, plen, NULL, 0, true); in addrconf_get_prefix_route()
2511 if (rt->nh) in addrconf_get_prefix_route()
2514 if (rt->fib6_nh->fib_nh_dev->ifindex != dev->ifindex) in addrconf_get_prefix_route()
2516 if (no_gw && rt->fib6_nh->fib_nh_gw_family) in addrconf_get_prefix_route()
2518 if ((rt->fib6_flags & flags) != flags) in addrconf_get_prefix_route()
2520 if ((rt->fib6_flags & noflags) != 0) in addrconf_get_prefix_route()
2532 /* Create "default" multicast route to the interface */
2539 .fc_ifindex = dev->ifindex, in addrconf_add_mroute()
2562 if (idev->cnf.disable_ipv6) in addrconf_add_dev()
2563 return ERR_PTR(-EACCES); in addrconf_add_dev()
2565 /* Add default multicast route */ in addrconf_add_dev()
2566 if (!(dev->flags & IFF_LOOPBACK) && !netif_is_l3_master(dev)) in addrconf_add_dev()
2577 write_lock_bh(&idev->lock); in delete_tempaddrs()
2578 list_for_each_entry_safe(ift, tmp, &idev->tempaddr_list, tmp_list) { in delete_tempaddrs()
2579 if (ift->ifpub != ifp) in delete_tempaddrs()
2583 write_unlock_bh(&idev->lock); in delete_tempaddrs()
2585 write_lock_bh(&idev->lock); in delete_tempaddrs()
2587 write_unlock_bh(&idev->lock); in delete_tempaddrs()
2598 read_lock_bh(&idev->lock); in manage_tempaddrs()
2600 list_for_each_entry(ift, &idev->tempaddr_list, tmp_list) { in manage_tempaddrs()
2603 if (ifp != ift->ifpub) in manage_tempaddrs()
2612 * (TEMP_PREFERRED_LIFETIME - DESYNC_FACTOR), respectively. in manage_tempaddrs()
2614 age = (now - ift->cstamp) / HZ; in manage_tempaddrs()
2615 max_valid = READ_ONCE(idev->cnf.temp_valid_lft) - age; in manage_tempaddrs()
2619 max_prefered = READ_ONCE(idev->cnf.temp_prefered_lft) - in manage_tempaddrs()
2620 idev->desync_factor - age; in manage_tempaddrs()
2630 spin_lock(&ift->lock); in manage_tempaddrs()
2631 flags = ift->flags; in manage_tempaddrs()
2632 ift->valid_lft = valid_lft; in manage_tempaddrs()
2633 ift->prefered_lft = prefered_lft; in manage_tempaddrs()
2634 ift->tstamp = now; in manage_tempaddrs()
2636 ift->flags &= ~IFA_F_DEPRECATED; in manage_tempaddrs()
2638 spin_unlock(&ift->lock); in manage_tempaddrs()
2649 if (list_empty(&idev->tempaddr_list) && (valid_lft || prefered_lft)) in manage_tempaddrs()
2652 if (create && READ_ONCE(idev->cnf.use_tempaddr) > 0) { in manage_tempaddrs()
2656 read_unlock_bh(&idev->lock); in manage_tempaddrs()
2659 read_unlock_bh(&idev->lock); in manage_tempaddrs()
2665 return idev->cnf.addr_gen_mode == IN6_ADDR_GEN_MODE_STABLE_PRIVACY || in is_addr_mode_generate_stable()
2666 idev->cnf.addr_gen_mode == IN6_ADDR_GEN_MODE_RANDOM; in is_addr_mode_generate_stable()
2680 int max_addresses = READ_ONCE(in6_dev->cnf.max_addresses); in addrconf_prefix_rcv_add_addr()
2683 .plen = pinfo->prefix_len, in addrconf_prefix_rcv_add_addr()
2692 if ((READ_ONCE(net->ipv6.devconf_all->optimistic_dad) || in addrconf_prefix_rcv_add_addr()
2693 READ_ONCE(in6_dev->cnf.optimistic_dad)) && in addrconf_prefix_rcv_add_addr()
2694 !net->ipv6.devconf_all->forwarding && sllao) in addrconf_prefix_rcv_add_addr()
2706 return -1; in addrconf_prefix_rcv_add_addr()
2709 spin_lock_bh(&ifp->lock); in addrconf_prefix_rcv_add_addr()
2710 ifp->flags |= IFA_F_MANAGETEMPADDR; in addrconf_prefix_rcv_add_addr()
2711 ifp->cstamp = jiffies; in addrconf_prefix_rcv_add_addr()
2712 ifp->tokenized = tokenized; in addrconf_prefix_rcv_add_addr()
2713 spin_unlock_bh(&ifp->lock); in addrconf_prefix_rcv_add_addr()
2723 spin_lock_bh(&ifp->lock); in addrconf_prefix_rcv_add_addr()
2725 if (ifp->valid_lft > (now - ifp->tstamp) / HZ) in addrconf_prefix_rcv_add_addr()
2726 stored_lft = ifp->valid_lft - (now - ifp->tstamp) / HZ; in addrconf_prefix_rcv_add_addr()
2742 if (update_lft && !READ_ONCE(in6_dev->cnf.ra_honor_pio_life)) { in addrconf_prefix_rcv_add_addr()
2749 ifp->valid_lft = valid_lft; in addrconf_prefix_rcv_add_addr()
2750 ifp->prefered_lft = prefered_lft; in addrconf_prefix_rcv_add_addr()
2751 WRITE_ONCE(ifp->tstamp, now); in addrconf_prefix_rcv_add_addr()
2752 flags = ifp->flags; in addrconf_prefix_rcv_add_addr()
2753 ifp->flags &= ~IFA_F_DEPRECATED; in addrconf_prefix_rcv_add_addr()
2754 spin_unlock_bh(&ifp->lock); in addrconf_prefix_rcv_add_addr()
2759 spin_unlock_bh(&ifp->lock); in addrconf_prefix_rcv_add_addr()
2795 addr_type = ipv6_addr_type(&pinfo->prefix); in addrconf_prefix_rcv()
2800 valid_lft = ntohl(pinfo->valid); in addrconf_prefix_rcv()
2801 prefered_lft = ntohl(pinfo->prefered); in addrconf_prefix_rcv()
2812 dev->name); in addrconf_prefix_rcv()
2816 if (valid_lft != 0 && valid_lft < in6_dev->cnf.accept_ra_min_lft) in addrconf_prefix_rcv()
2821 * 1) Add routes for on-link prefixes in addrconf_prefix_rcv()
2825 if (pinfo->onlink) { in addrconf_prefix_rcv()
2842 rt = addrconf_get_prefix_route(&pinfo->prefix, in addrconf_prefix_rcv()
2843 pinfo->prefix_len, in addrconf_prefix_rcv()
2849 /* Autoconf prefix route */ in addrconf_prefix_rcv()
2854 table = rt->fib6_table; in addrconf_prefix_rcv()
2855 spin_lock_bh(&table->tb6_lock); in addrconf_prefix_rcv()
2866 spin_unlock_bh(&table->tb6_lock); in addrconf_prefix_rcv()
2876 addrconf_prefix_route(&pinfo->prefix, pinfo->prefix_len, in addrconf_prefix_rcv()
2885 ignore_autoconf = READ_ONCE(in6_dev->cnf.ra_honor_pio_pflag) && pinfo->preferpd; in addrconf_prefix_rcv()
2886 if (pinfo->autoconf && in6_dev->cnf.autoconf && !ignore_autoconf) { in addrconf_prefix_rcv()
2890 if (pinfo->prefix_len == 64) { in addrconf_prefix_rcv()
2891 memcpy(&addr, &pinfo->prefix, 8); in addrconf_prefix_rcv()
2893 if (!ipv6_addr_any(&in6_dev->token)) { in addrconf_prefix_rcv()
2894 read_lock_bh(&in6_dev->lock); in addrconf_prefix_rcv()
2896 in6_dev->token.s6_addr + 8, 8); in addrconf_prefix_rcv()
2897 read_unlock_bh(&in6_dev->lock); in addrconf_prefix_rcv()
2913 pinfo->prefix_len); in addrconf_prefix_rcv()
2945 if (!(ipv6_addr_type(&ireq->ifr6_addr) & IPV6_ADDR_COMPATv4)) in addrconf_set_sit_dstaddr()
2946 return -EADDRNOTAVAIL; in addrconf_set_sit_dstaddr()
2948 p.iph.daddr = ireq->ifr6_addr.s6_addr32[3]; in addrconf_set_sit_dstaddr()
2954 if (!dev->netdev_ops->ndo_tunnel_ctl) in addrconf_set_sit_dstaddr()
2955 return -EOPNOTSUPP; in addrconf_set_sit_dstaddr()
2956 err = dev->netdev_ops->ndo_tunnel_ctl(dev, &p, SIOCADDTUNNEL); in addrconf_set_sit_dstaddr()
2962 return -ENOBUFS; in addrconf_set_sit_dstaddr()
2975 int err = -ENODEV; in addrconf_set_dstaddr()
2978 return -ENODEV; in addrconf_set_dstaddr()
2980 return -EFAULT; in addrconf_set_dstaddr()
2984 if (dev && dev->type == ARPHRD_SIT) in addrconf_set_dstaddr()
3019 if (cfg->plen > 128) { in inet6_addr_add()
3021 return -EINVAL; in inet6_addr_add()
3024 if (cfg->ifa_flags & IFA_F_MANAGETEMPADDR && cfg->plen != 64) { in inet6_addr_add()
3026 return -EINVAL; in inet6_addr_add()
3035 if (cfg->ifa_flags & IFA_F_MCAUTOJOIN) { in inet6_addr_add()
3036 int ret = ipv6_mc_config(net->ipv6.mc_autojoin_sk, in inet6_addr_add()
3037 true, cfg->pfx, dev->ifindex); in inet6_addr_add()
3045 cfg->scope = ipv6_addr_scope(cfg->pfx); in inet6_addr_add()
3049 if (!(cfg->ifa_flags & IFA_F_NOPREFIXROUTE)) { in inet6_addr_add()
3050 addrconf_prefix_route(&ifp->addr, ifp->prefix_len, in inet6_addr_add()
3051 ifp->rt_priority, dev, expires, in inet6_addr_add()
3058 if (!(ifp->flags & (IFA_F_OPTIMISTIC | IFA_F_NODAD))) in inet6_addr_add()
3066 if (cfg->ifa_flags & IFA_F_MANAGETEMPADDR) in inet6_addr_add()
3067 manage_tempaddrs(idev, ifp, cfg->valid_lft, in inet6_addr_add()
3068 cfg->preferred_lft, true, jiffies); in inet6_addr_add()
3072 } else if (cfg->ifa_flags & IFA_F_MCAUTOJOIN) { in inet6_addr_add()
3073 ipv6_mc_config(net->ipv6.mc_autojoin_sk, false, in inet6_addr_add()
3074 cfg->pfx, dev->ifindex); in inet6_addr_add()
3090 return -EINVAL; in inet6_addr_del()
3096 return -ENODEV; in inet6_addr_del()
3102 return -ENXIO; in inet6_addr_del()
3105 read_lock_bh(&idev->lock); in inet6_addr_del()
3106 list_for_each_entry(ifp, &idev->addr_list, if_list) { in inet6_addr_del()
3107 if (ifp->prefix_len == plen && in inet6_addr_del()
3108 ipv6_addr_equal(pfx, &ifp->addr)) { in inet6_addr_del()
3110 read_unlock_bh(&idev->lock); in inet6_addr_del()
3114 if (!(ifp->flags & IFA_F_TEMPORARY) && in inet6_addr_del()
3115 (ifp->flags & IFA_F_MANAGETEMPADDR)) in inet6_addr_del()
3120 ipv6_mc_config(net->ipv6.mc_autojoin_sk, in inet6_addr_del()
3121 false, pfx, dev->ifindex); in inet6_addr_del()
3126 read_unlock_bh(&idev->lock); in inet6_addr_del()
3129 return -EADDRNOTAVAIL; in inet6_addr_del()
3144 if (!ns_capable(net->user_ns, CAP_NET_ADMIN)) in addrconf_add_ifaddr()
3145 return -EPERM; in addrconf_add_ifaddr()
3148 return -EFAULT; in addrconf_add_ifaddr()
3158 err = -ENODEV; in addrconf_add_ifaddr()
3168 if (!ns_capable(net->user_ns, CAP_NET_ADMIN)) in addrconf_del_ifaddr()
3169 return -EPERM; in addrconf_del_ifaddr()
3172 return -EFAULT; in addrconf_del_ifaddr()
3197 spin_lock_bh(&ifp->lock); in add_addr()
3198 ifp->flags &= ~IFA_F_TENTATIVE; in add_addr()
3199 spin_unlock_bh(&ifp->lock); in add_addr()
3200 rt_genid_bump_ipv6(dev_net(idev->dev)); in add_addr()
3211 struct net *net = dev_net(idev->dev); in add_v4_addrs()
3219 if (idev->dev->addr_len == sizeof(struct in6_addr)) in add_v4_addrs()
3220 offset = sizeof(struct in6_addr) - 4; in add_v4_addrs()
3221 memcpy(&addr.s6_addr32[3], idev->dev->dev_addr + offset, 4); in add_v4_addrs()
3223 if (!(idev->dev->flags & IFF_POINTOPOINT) && idev->dev->type == ARPHRD_SIT) { in add_v4_addrs()
3228 if (idev->cnf.addr_gen_mode == IN6_ADDR_GEN_MODE_NONE) in add_v4_addrs()
3238 addrconf_prefix_route(&addr, plen, 0, idev->dev, 0, pflags, in add_v4_addrs()
3245 if (in_dev && (dev->flags & IFF_UP)) { in add_v4_addrs()
3250 addr.s6_addr32[3] = ifa->ifa_local; in add_v4_addrs()
3252 if (ifa->ifa_scope == RT_SCOPE_LINK) in add_v4_addrs()
3254 if (ifa->ifa_scope >= RT_SCOPE_HOST) { in add_v4_addrs()
3255 if (idev->dev->flags&IFF_POINTOPOINT) in add_v4_addrs()
3262 addrconf_prefix_route(&addr, plen, 0, idev->dev, in add_v4_addrs()
3302 if ((READ_ONCE(dev_net(idev->dev)->ipv6.devconf_all->optimistic_dad) || in addrconf_add_linklocal()
3303 READ_ONCE(idev->cnf.optimistic_dad)) && in addrconf_add_linklocal()
3304 !dev_net(idev->dev)->ipv6.devconf_all->forwarding) in addrconf_add_linklocal()
3310 addrconf_prefix_route(&ifp->addr, ifp->prefix_len, 0, idev->dev, in addrconf_add_linklocal()
3354 struct net *net = dev_net(idev->dev); in ipv6_generate_stable_address()
3358 if (idev->cnf.stable_secret.initialized) in ipv6_generate_stable_address()
3359 secret = idev->cnf.stable_secret.secret; in ipv6_generate_stable_address()
3360 else if (net->ipv6.devconf_dflt->stable_secret.initialized) in ipv6_generate_stable_address()
3361 secret = net->ipv6.devconf_dflt->stable_secret.secret; in ipv6_generate_stable_address()
3363 return -1; in ipv6_generate_stable_address()
3371 memcpy(data.hwaddr, idev->dev->perm_addr, idev->dev->addr_len); in ipv6_generate_stable_address()
3372 data.prefix[0] = address->s6_addr32[0]; in ipv6_generate_stable_address()
3373 data.prefix[1] = address->s6_addr32[1]; in ipv6_generate_stable_address()
3387 if (dad_count > dev_net(idev->dev)->ipv6.sysctl.idgen_retries) in ipv6_generate_stable_address()
3388 return -1; in ipv6_generate_stable_address()
3398 struct ipv6_stable_secret *s = &idev->cnf.stable_secret; in ipv6_gen_mode_random_init()
3400 if (s->initialized) in ipv6_gen_mode_random_init()
3402 s = &idev->cnf.stable_secret; in ipv6_gen_mode_random_init()
3403 get_random_bytes(&s->secret, sizeof(s->secret)); in ipv6_gen_mode_random_init()
3404 s->initialized = true; in ipv6_gen_mode_random_init()
3412 if (netif_is_l3_master(idev->dev)) in addrconf_addr_gen()
3416 if (idev->dev->priv_flags & IFF_NO_ADDRCONF) in addrconf_addr_gen()
3421 switch (idev->cnf.addr_gen_mode) { in addrconf_addr_gen()
3430 addrconf_prefix_route(&addr, 64, 0, idev->dev, in addrconf_addr_gen()
3438 if (ipv6_generate_eui64(addr.s6_addr + 8, idev->dev) == 0) in addrconf_addr_gen()
3441 addrconf_prefix_route(&addr, 64, 0, idev->dev, in addrconf_addr_gen()
3457 if ((dev->type != ARPHRD_ETHER) && in addrconf_dev_config()
3458 (dev->type != ARPHRD_FDDI) && in addrconf_dev_config()
3459 (dev->type != ARPHRD_ARCNET) && in addrconf_dev_config()
3460 (dev->type != ARPHRD_INFINIBAND) && in addrconf_dev_config()
3461 (dev->type != ARPHRD_IEEE1394) && in addrconf_dev_config()
3462 (dev->type != ARPHRD_TUNNEL6) && in addrconf_dev_config()
3463 (dev->type != ARPHRD_6LOWPAN) && in addrconf_dev_config()
3464 (dev->type != ARPHRD_TUNNEL) && in addrconf_dev_config()
3465 (dev->type != ARPHRD_NONE) && in addrconf_dev_config()
3466 (dev->type != ARPHRD_RAWIP)) { in addrconf_dev_config()
3469 if (!IS_ERR_OR_NULL(idev) && dev->flags & IFF_UP && in addrconf_dev_config()
3470 dev->flags & IFF_MULTICAST) in addrconf_dev_config()
3480 if (dev->type == ARPHRD_NONE && in addrconf_dev_config()
3481 idev->cnf.addr_gen_mode == IN6_ADDR_GEN_MODE_EUI64) in addrconf_dev_config()
3482 WRITE_ONCE(idev->cnf.addr_gen_mode, in addrconf_dev_config()
3507 if (dev->priv_flags & IFF_ISATAP) { in addrconf_sit_config()
3514 if (dev->flags&IFF_POINTOPOINT) in addrconf_sit_config()
3532 if (dev->type == ARPHRD_ETHER) { in addrconf_gre_config()
3539 if (dev->flags & IFF_POINTOPOINT) in addrconf_gre_config()
3546 switch (dev->type) { in addrconf_init_auto_addrs()
3572 /* !fib6_node means the host route was removed from the in fixup_permanent_addr()
3574 * case regenerate the host route. in fixup_permanent_addr()
3576 if (!ifp->rt || !ifp->rt->fib6_node) { in fixup_permanent_addr()
3579 f6i = addrconf_f6i_alloc(net, idev, &ifp->addr, false, in fixup_permanent_addr()
3584 /* ifp->rt can be accessed outside of rtnl */ in fixup_permanent_addr()
3585 spin_lock(&ifp->lock); in fixup_permanent_addr()
3586 prev = ifp->rt; in fixup_permanent_addr()
3587 ifp->rt = f6i; in fixup_permanent_addr()
3588 spin_unlock(&ifp->lock); in fixup_permanent_addr()
3593 if (!(ifp->flags & IFA_F_NOPREFIXROUTE)) { in fixup_permanent_addr()
3594 addrconf_prefix_route(&ifp->addr, ifp->prefix_len, in fixup_permanent_addr()
3595 ifp->rt_priority, idev->dev, 0, 0, in fixup_permanent_addr()
3599 if (ifp->state == INET6_IFADDR_STATE_PREDAD) in fixup_permanent_addr()
3614 write_lock_bh(&idev->lock); in addrconf_permanent_addr()
3616 list_for_each_entry_safe(ifp, tmp, &idev->addr_list, if_list) { in addrconf_permanent_addr()
3617 if ((ifp->flags & IFA_F_PERMANENT) && in addrconf_permanent_addr()
3619 write_unlock_bh(&idev->lock); in addrconf_permanent_addr()
3622 write_lock_bh(&idev->lock); in addrconf_permanent_addr()
3624 net_info_ratelimited("%s: Failed to add prefix route for address %pI6c; dropping\n", in addrconf_permanent_addr()
3625 idev->dev->name, &ifp->addr); in addrconf_permanent_addr()
3629 write_unlock_bh(&idev->lock); in addrconf_permanent_addr()
3645 if (!idev && dev->mtu >= IPV6_MIN_MTU) { in addrconf_notify()
3654 if (dev->mtu < IPV6_MIN_MTU) { in addrconf_notify()
3655 addrconf_ifdown(dev, dev != net->loopback_dev); in addrconf_notify()
3660 rt6_mtu_change(dev, dev->mtu); in addrconf_notify()
3661 WRITE_ONCE(idev->cnf.mtu6, dev->mtu); in addrconf_notify()
3671 if (!(idev->if_flags & IF_READY)) in addrconf_notify()
3678 if (idev && idev->cnf.disable_ipv6) in addrconf_notify()
3681 if (dev->priv_flags & IFF_NO_ADDRCONF) { in addrconf_notify()
3683 dev->flags & IFF_UP && dev->flags & IFF_MULTICAST) in addrconf_notify()
3695 dev->name); in addrconf_notify()
3699 if (!idev && dev->mtu >= IPV6_MIN_MTU) in addrconf_notify()
3703 idev->if_flags |= IF_READY; in addrconf_notify()
3714 if (idev->if_flags & IF_READY) { in addrconf_notify()
3715 /* device is already configured - in addrconf_notify()
3722 if (change_info->flags_changed & IFF_NOARP) in addrconf_notify()
3727 idev->if_flags |= IF_READY; in addrconf_notify()
3731 dev->name); in addrconf_notify()
3750 if (idev->cnf.mtu6 != dev->mtu && in addrconf_notify()
3751 dev->mtu >= IPV6_MIN_MTU) { in addrconf_notify()
3752 rt6_mtu_change(dev, dev->mtu); in addrconf_notify()
3753 WRITE_ONCE(idev->cnf.mtu6, dev->mtu); in addrconf_notify()
3755 WRITE_ONCE(idev->tstamp, jiffies); in addrconf_notify()
3762 if (dev->mtu < IPV6_MIN_MTU) in addrconf_notify()
3763 addrconf_ifdown(dev, dev != net->loopback_dev); in addrconf_notify()
3802 if (info->upper_dev && netif_is_l3_master(info->upper_dev)) in addrconf_notify()
3853 return -ENODEV; in addrconf_ifdown()
3860 idev->dead = 1; in addrconf_ifdown()
3863 RCU_INIT_POINTER(dev->ip6_ptr, NULL); in addrconf_ifdown()
3873 if (!unregister && !idev->cnf.disable_ipv6) { in addrconf_ifdown()
3875 int _keep_addr = READ_ONCE(net->ipv6.devconf_all->keep_addr_on_down); in addrconf_ifdown()
3878 _keep_addr = READ_ONCE(idev->cnf.keep_addr_on_down); in addrconf_ifdown()
3885 struct hlist_head *h = &net->ipv6.inet6_addr_lst[i]; in addrconf_ifdown()
3887 spin_lock_bh(&net->ipv6.addrconf_hash_lock); in addrconf_ifdown()
3890 if (ifa->idev == idev) { in addrconf_ifdown()
3896 !(ifa->flags & IFA_F_PERMANENT) || in addrconf_ifdown()
3897 addr_is_local(&ifa->addr)) { in addrconf_ifdown()
3898 hlist_del_init_rcu(&ifa->addr_lst); in addrconf_ifdown()
3903 spin_unlock_bh(&net->ipv6.addrconf_hash_lock); in addrconf_ifdown()
3906 write_lock_bh(&idev->lock); in addrconf_ifdown()
3913 was_ready = idev->if_flags & IF_READY; in addrconf_ifdown()
3915 idev->if_flags &= ~(IF_RS_SENT|IF_RA_RCVD|IF_READY); in addrconf_ifdown()
3918 while (!list_empty(&idev->tempaddr_list)) { in addrconf_ifdown()
3919 ifa = list_first_entry(&idev->tempaddr_list, in addrconf_ifdown()
3921 list_del(&ifa->tmp_list); in addrconf_ifdown()
3922 write_unlock_bh(&idev->lock); in addrconf_ifdown()
3923 spin_lock_bh(&ifa->lock); in addrconf_ifdown()
3925 if (ifa->ifpub) { in addrconf_ifdown()
3926 in6_ifa_put(ifa->ifpub); in addrconf_ifdown()
3927 ifa->ifpub = NULL; in addrconf_ifdown()
3929 spin_unlock_bh(&ifa->lock); in addrconf_ifdown()
3931 write_lock_bh(&idev->lock); in addrconf_ifdown()
3934 list_for_each_entry(ifa, &idev->addr_list, if_list) in addrconf_ifdown()
3935 list_add_tail(&ifa->if_list_aux, &tmp_addr_list); in addrconf_ifdown()
3936 write_unlock_bh(&idev->lock); in addrconf_ifdown()
3944 list_del(&ifa->if_list_aux); in addrconf_ifdown()
3948 keep = keep_addr && (ifa->flags & IFA_F_PERMANENT) && in addrconf_ifdown()
3949 !addr_is_local(&ifa->addr); in addrconf_ifdown()
3951 spin_lock_bh(&ifa->lock); in addrconf_ifdown()
3956 ifa->state = INET6_IFADDR_STATE_PREDAD; in addrconf_ifdown()
3957 if (!(ifa->flags & IFA_F_NODAD)) in addrconf_ifdown()
3958 ifa->flags |= IFA_F_TENTATIVE; in addrconf_ifdown()
3960 rt = ifa->rt; in addrconf_ifdown()
3961 ifa->rt = NULL; in addrconf_ifdown()
3963 state = ifa->state; in addrconf_ifdown()
3964 ifa->state = INET6_IFADDR_STATE_DEAD; in addrconf_ifdown()
3967 spin_unlock_bh(&ifa->lock); in addrconf_ifdown()
3976 if (idev->cnf.forwarding) in addrconf_ifdown()
3978 addrconf_leave_solict(ifa->idev, &ifa->addr); in addrconf_ifdown()
3982 write_lock_bh(&idev->lock); in addrconf_ifdown()
3983 list_del_rcu(&ifa->if_list); in addrconf_ifdown()
3984 write_unlock_bh(&idev->lock); in addrconf_ifdown()
3997 WRITE_ONCE(idev->tstamp, jiffies); in addrconf_ifdown()
3998 idev->ra_mtu = 0; in addrconf_ifdown()
4003 neigh_parms_release(&nd_tbl, idev->nd_parms); in addrconf_ifdown()
4013 struct net_device *dev = idev->dev; in addrconf_rs_timer()
4017 write_lock(&idev->lock); in addrconf_rs_timer()
4018 if (idev->dead || !(idev->if_flags & IF_READY)) in addrconf_rs_timer()
4025 if (idev->if_flags & IF_RA_RCVD) in addrconf_rs_timer()
4028 rtr_solicits = READ_ONCE(idev->cnf.rtr_solicits); in addrconf_rs_timer()
4030 if (idev->rs_probes++ < rtr_solicits || rtr_solicits < 0) { in addrconf_rs_timer()
4031 write_unlock(&idev->lock); in addrconf_rs_timer()
4038 write_lock(&idev->lock); in addrconf_rs_timer()
4039 idev->rs_interval = rfc3315_s14_backoff_update( in addrconf_rs_timer()
4040 idev->rs_interval, in addrconf_rs_timer()
4041 READ_ONCE(idev->cnf.rtr_solicit_max_interval)); in addrconf_rs_timer()
4043 addrconf_mod_rs_timer(idev, (idev->rs_probes == in addrconf_rs_timer()
4044 READ_ONCE(idev->cnf.rtr_solicits)) ? in addrconf_rs_timer()
4045 READ_ONCE(idev->cnf.rtr_solicit_delay) : in addrconf_rs_timer()
4046 idev->rs_interval); in addrconf_rs_timer()
4049 * Note: we do not support deprecated "all on-link" in addrconf_rs_timer()
4052 pr_debug("%s: no IPv6 routers present\n", idev->dev->name); in addrconf_rs_timer()
4056 write_unlock(&idev->lock); in addrconf_rs_timer()
4066 struct inet6_dev *idev = ifp->idev; in addrconf_dad_kick()
4070 if (ifp->flags & IFA_F_OPTIMISTIC) in addrconf_dad_kick()
4074 READ_ONCE(idev->cnf.rtr_solicit_delay) ? : 1); in addrconf_dad_kick()
4077 if (READ_ONCE(idev->cnf.enhanced_dad) || in addrconf_dad_kick()
4078 READ_ONCE(dev_net(idev->dev)->ipv6.devconf_all->enhanced_dad)) { in addrconf_dad_kick()
4083 ifp->dad_nonce = nonce; in addrconf_dad_kick()
4084 ifp->dad_probes = READ_ONCE(idev->cnf.dad_transmits); in addrconf_dad_kick()
4090 struct inet6_dev *idev = ifp->idev; in addrconf_dad_begin()
4091 struct net_device *dev = idev->dev; in addrconf_dad_begin()
4095 addrconf_join_solict(dev, &ifp->addr); in addrconf_dad_begin()
4097 read_lock_bh(&idev->lock); in addrconf_dad_begin()
4098 spin_lock(&ifp->lock); in addrconf_dad_begin()
4099 if (ifp->state == INET6_IFADDR_STATE_DEAD) in addrconf_dad_begin()
4103 if (dev->flags&(IFF_NOARP|IFF_LOOPBACK) || in addrconf_dad_begin()
4104 (READ_ONCE(net->ipv6.devconf_all->accept_dad) < 1 && in addrconf_dad_begin()
4105 READ_ONCE(idev->cnf.accept_dad) < 1) || in addrconf_dad_begin()
4106 !(ifp->flags&IFA_F_TENTATIVE) || in addrconf_dad_begin()
4107 ifp->flags & IFA_F_NODAD) { in addrconf_dad_begin()
4110 if (ifp->flags & IFA_F_TENTATIVE && in addrconf_dad_begin()
4111 !(ifp->flags & IFA_F_OPTIMISTIC)) in addrconf_dad_begin()
4113 bump_id = ifp->flags & IFA_F_TENTATIVE; in addrconf_dad_begin()
4114 ifp->flags &= ~(IFA_F_TENTATIVE|IFA_F_OPTIMISTIC|IFA_F_DADFAILED); in addrconf_dad_begin()
4115 spin_unlock(&ifp->lock); in addrconf_dad_begin()
4116 read_unlock_bh(&idev->lock); in addrconf_dad_begin()
4122 if (!(idev->if_flags & IF_READY)) { in addrconf_dad_begin()
4123 spin_unlock(&ifp->lock); in addrconf_dad_begin()
4124 read_unlock_bh(&idev->lock); in addrconf_dad_begin()
4127 * - keep it tentative if it is a permanent address. in addrconf_dad_begin()
4128 * - otherwise, kill it. in addrconf_dad_begin()
4139 if (ifp->flags & IFA_F_OPTIMISTIC) { in addrconf_dad_begin()
4140 ip6_ins_rt(net, ifp->rt); in addrconf_dad_begin()
4151 spin_unlock(&ifp->lock); in addrconf_dad_begin()
4152 read_unlock_bh(&idev->lock); in addrconf_dad_begin()
4161 spin_lock_bh(&ifp->lock); in addrconf_dad_start()
4162 if (ifp->state != INET6_IFADDR_STATE_DEAD) { in addrconf_dad_start()
4163 ifp->state = INET6_IFADDR_STATE_PREDAD; in addrconf_dad_start()
4166 spin_unlock_bh(&ifp->lock); in addrconf_dad_start()
4177 struct inet6_dev *idev = ifp->idev; in addrconf_dad_work()
4188 net = dev_net(idev->dev); in addrconf_dad_work()
4192 spin_lock_bh(&ifp->lock); in addrconf_dad_work()
4193 if (ifp->state == INET6_IFADDR_STATE_PREDAD) { in addrconf_dad_work()
4195 ifp->state = INET6_IFADDR_STATE_DAD; in addrconf_dad_work()
4196 } else if (ifp->state == INET6_IFADDR_STATE_ERRDAD) { in addrconf_dad_work()
4198 ifp->state = INET6_IFADDR_STATE_POSTDAD; in addrconf_dad_work()
4200 if ((READ_ONCE(net->ipv6.devconf_all->accept_dad) > 1 || in addrconf_dad_work()
4201 READ_ONCE(idev->cnf.accept_dad) > 1) && in addrconf_dad_work()
4202 !idev->cnf.disable_ipv6 && in addrconf_dad_work()
4203 !(ifp->flags & IFA_F_STABLE_PRIVACY)) { in addrconf_dad_work()
4209 if (!ipv6_generate_eui64(addr.s6_addr + 8, idev->dev) && in addrconf_dad_work()
4210 ipv6_addr_equal(&ifp->addr, &addr)) { in addrconf_dad_work()
4211 /* DAD failed for link-local based on MAC */ in addrconf_dad_work()
4212 WRITE_ONCE(idev->cnf.disable_ipv6, 1); in addrconf_dad_work()
4215 ifp->idev->dev->name); in addrconf_dad_work()
4220 spin_unlock_bh(&ifp->lock); in addrconf_dad_work()
4229 addrconf_ifdown(idev->dev, false); in addrconf_dad_work()
4233 if (!ifp->dad_probes && addrconf_dad_end(ifp)) in addrconf_dad_work()
4236 write_lock_bh(&idev->lock); in addrconf_dad_work()
4237 if (idev->dead || !(idev->if_flags & IF_READY)) { in addrconf_dad_work()
4238 write_unlock_bh(&idev->lock); in addrconf_dad_work()
4242 spin_lock(&ifp->lock); in addrconf_dad_work()
4243 if (ifp->state == INET6_IFADDR_STATE_DEAD) { in addrconf_dad_work()
4244 spin_unlock(&ifp->lock); in addrconf_dad_work()
4245 write_unlock_bh(&idev->lock); in addrconf_dad_work()
4249 if (ifp->dad_probes == 0) { in addrconf_dad_work()
4256 if (ifp->flags & IFA_F_TENTATIVE && in addrconf_dad_work()
4257 !(ifp->flags & IFA_F_OPTIMISTIC)) in addrconf_dad_work()
4259 bump_id = ifp->flags & IFA_F_TENTATIVE; in addrconf_dad_work()
4260 ifp->flags &= ~(IFA_F_TENTATIVE|IFA_F_OPTIMISTIC|IFA_F_DADFAILED); in addrconf_dad_work()
4261 spin_unlock(&ifp->lock); in addrconf_dad_work()
4262 write_unlock_bh(&idev->lock); in addrconf_dad_work()
4269 ifp->dad_probes--; in addrconf_dad_work()
4271 max(NEIGH_VAR(ifp->idev->nd_parms, RETRANS_TIME), in addrconf_dad_work()
4273 spin_unlock(&ifp->lock); in addrconf_dad_work()
4274 write_unlock_bh(&idev->lock); in addrconf_dad_work()
4277 addrconf_addr_solict_mult(&ifp->addr, &mcaddr); in addrconf_dad_work()
4278 ndisc_send_ns(ifp->idev->dev, &ifp->addr, &mcaddr, &in6addr_any, in addrconf_dad_work()
4279 ifp->dad_nonce); in addrconf_dad_work()
4285 /* ifp->idev must be at least read locked */
4289 struct inet6_dev *idev = ifp->idev; in ipv6_lonely_lladdr()
4291 list_for_each_entry_reverse(ifpiter, &idev->addr_list, if_list) { in ipv6_lonely_lladdr()
4292 if (ifpiter->scope > IFA_LINK) in ipv6_lonely_lladdr()
4294 if (ifp != ifpiter && ifpiter->scope == IFA_LINK && in ipv6_lonely_lladdr()
4295 (ifpiter->flags & (IFA_F_PERMANENT|IFA_F_TENTATIVE| in ipv6_lonely_lladdr()
4306 struct net_device *dev = ifp->idev->dev; in addrconf_dad_completed()
4322 read_lock_bh(&ifp->idev->lock); in addrconf_dad_completed()
4323 send_mld = ifp->scope == IFA_LINK && ipv6_lonely_lladdr(ifp); in addrconf_dad_completed()
4325 ipv6_accept_ra(ifp->idev) && in addrconf_dad_completed()
4326 READ_ONCE(ifp->idev->cnf.rtr_solicits) != 0 && in addrconf_dad_completed()
4327 (dev->flags & IFF_LOOPBACK) == 0 && in addrconf_dad_completed()
4328 (dev->type != ARPHRD_TUNNEL) && in addrconf_dad_completed()
4330 read_unlock_bh(&ifp->idev->lock); in addrconf_dad_completed()
4336 ipv6_mc_dad_complete(ifp->idev); in addrconf_dad_completed()
4340 (READ_ONCE(ifp->idev->cnf.ndisc_notify) || in addrconf_dad_completed()
4341 READ_ONCE(dev_net(dev)->ipv6.devconf_all->ndisc_notify))) { in addrconf_dad_completed()
4342 ndisc_send_na(dev, &in6addr_linklocal_allnodes, &ifp->addr, in addrconf_dad_completed()
4343 /*router=*/ !!ifp->idev->cnf.forwarding, in addrconf_dad_completed()
4358 write_lock_bh(&ifp->idev->lock); in addrconf_dad_completed()
4359 spin_lock(&ifp->lock); in addrconf_dad_completed()
4360 ifp->idev->rs_interval = rfc3315_s14_backoff_init( in addrconf_dad_completed()
4361 READ_ONCE(ifp->idev->cnf.rtr_solicit_interval)); in addrconf_dad_completed()
4362 ifp->idev->rs_probes = 1; in addrconf_dad_completed()
4363 ifp->idev->if_flags |= IF_RS_SENT; in addrconf_dad_completed()
4364 addrconf_mod_rs_timer(ifp->idev, ifp->idev->rs_interval); in addrconf_dad_completed()
4365 spin_unlock(&ifp->lock); in addrconf_dad_completed()
4366 write_unlock_bh(&ifp->idev->lock); in addrconf_dad_completed()
4375 if (ifp->flags & IFA_F_TEMPORARY) in addrconf_dad_completed()
4383 read_lock_bh(&idev->lock); in addrconf_dad_run()
4384 list_for_each_entry(ifp, &idev->addr_list, if_list) { in addrconf_dad_run()
4385 spin_lock(&ifp->lock); in addrconf_dad_run()
4386 if ((ifp->flags & IFA_F_TENTATIVE && in addrconf_dad_run()
4387 ifp->state == INET6_IFADDR_STATE_DAD) || restart) { in addrconf_dad_run()
4389 ifp->state = INET6_IFADDR_STATE_PREDAD; in addrconf_dad_run()
4392 spin_unlock(&ifp->lock); in addrconf_dad_run()
4394 read_unlock_bh(&idev->lock); in addrconf_dad_run()
4406 struct if6_iter_state *state = seq->private; in if6_get_first()
4413 state->bucket = 0; in if6_get_first()
4414 state->offset = 0; in if6_get_first()
4417 for (; state->bucket < IN6_ADDR_HSIZE; ++state->bucket) { in if6_get_first()
4418 hlist_for_each_entry_rcu(ifa, &net->ipv6.inet6_addr_lst[state->bucket], in if6_get_first()
4421 if (p < state->offset) { in if6_get_first()
4429 state->offset = 0; in if6_get_first()
4438 struct if6_iter_state *state = seq->private; in if6_get_next()
4442 state->offset++; in if6_get_next()
4446 state->offset = 0; in if6_get_next()
4447 while (++state->bucket < IN6_ADDR_HSIZE) { in if6_get_next()
4449 &net->ipv6.inet6_addr_lst[state->bucket], addr_lst) { in if6_get_next()
4483 &ifp->addr, in if6_seq_show()
4484 ifp->idev->dev->ifindex, in if6_seq_show()
4485 ifp->prefix_len, in if6_seq_show()
4486 ifp->scope, in if6_seq_show()
4487 (u8) ifp->flags, in if6_seq_show()
4488 ifp->idev->dev->name); in if6_seq_show()
4501 if (!proc_create_net("if_inet6", 0444, net->proc_net, &if6_seq_ops, in if6_proc_net_init()
4503 return -ENOMEM; in if6_proc_net_init()
4509 remove_proc_entry("if_inet6", net->proc_net); in if6_proc_net_exit()
4537 hlist_for_each_entry_rcu(ifp, &net->ipv6.inet6_addr_lst[hash], addr_lst) { in ipv6_chk_home_addr()
4538 if (ipv6_addr_equal(&ifp->addr, addr) && in ipv6_chk_home_addr()
4539 (ifp->flags & IFA_F_HOMEADDRESS)) { in ipv6_chk_home_addr()
4575 hlist_for_each_entry_rcu(ifp, &net->ipv6.inet6_addr_lst[hash], addr_lst) { in ipv6_chk_rpl_srh_loop()
4577 if (ipv6_addr_equal(&ifp->addr, addr)) { in ipv6_chk_rpl_srh_loop()
4616 cancel_delayed_work(&net->ipv6.addr_chk_work); in addrconf_verify_rtnl()
4620 hlist_for_each_entry_rcu_bh(ifp, &net->ipv6.inet6_addr_lst[i], addr_lst) { in addrconf_verify_rtnl()
4625 * IFA_F_PERMANENT has a non-infinity life time. in addrconf_verify_rtnl()
4627 if ((ifp->flags & IFA_F_PERMANENT) && in addrconf_verify_rtnl()
4628 (ifp->prefered_lft == INFINITY_LIFE_TIME)) in addrconf_verify_rtnl()
4631 spin_lock(&ifp->lock); in addrconf_verify_rtnl()
4633 age = (now - ifp->tstamp + ADDRCONF_TIMER_FUZZ_MINUS) / HZ; in addrconf_verify_rtnl()
4635 if ((ifp->flags&IFA_F_TEMPORARY) && in addrconf_verify_rtnl()
4636 !(ifp->flags&IFA_F_TENTATIVE) && in addrconf_verify_rtnl()
4637 ifp->prefered_lft != INFINITY_LIFE_TIME && in addrconf_verify_rtnl()
4638 !ifp->regen_count && ifp->ifpub) { in addrconf_verify_rtnl()
4639 /* This is a non-regenerated temporary addr. */ in addrconf_verify_rtnl()
4641 unsigned long regen_advance = ipv6_get_regen_advance(ifp->idev); in addrconf_verify_rtnl()
4643 if (age + regen_advance >= ifp->prefered_lft) { in addrconf_verify_rtnl()
4644 struct inet6_ifaddr *ifpub = ifp->ifpub; in addrconf_verify_rtnl()
4645 if (time_before(ifp->tstamp + ifp->prefered_lft * HZ, next)) in addrconf_verify_rtnl()
4646 next = ifp->tstamp + ifp->prefered_lft * HZ; in addrconf_verify_rtnl()
4648 ifp->regen_count++; in addrconf_verify_rtnl()
4651 spin_unlock(&ifp->lock); in addrconf_verify_rtnl()
4653 spin_lock(&ifpub->lock); in addrconf_verify_rtnl()
4654 ifpub->regen_count = 0; in addrconf_verify_rtnl()
4655 spin_unlock(&ifpub->lock); in addrconf_verify_rtnl()
4662 } else if (time_before(ifp->tstamp + ifp->prefered_lft * HZ - regen_advance * HZ, next)) in addrconf_verify_rtnl()
4663 next = ifp->tstamp + ifp->prefered_lft * HZ - regen_advance * HZ; in addrconf_verify_rtnl()
4666 if (ifp->valid_lft != INFINITY_LIFE_TIME && in addrconf_verify_rtnl()
4667 age >= ifp->valid_lft) { in addrconf_verify_rtnl()
4668 spin_unlock(&ifp->lock); in addrconf_verify_rtnl()
4674 } else if (ifp->prefered_lft == INFINITY_LIFE_TIME) { in addrconf_verify_rtnl()
4675 spin_unlock(&ifp->lock); in addrconf_verify_rtnl()
4677 } else if (age >= ifp->prefered_lft) { in addrconf_verify_rtnl()
4678 /* jiffies - ifp->tstamp > age >= ifp->prefered_lft */ in addrconf_verify_rtnl()
4681 if (!(ifp->flags&IFA_F_DEPRECATED)) { in addrconf_verify_rtnl()
4683 ifp->flags |= IFA_F_DEPRECATED; in addrconf_verify_rtnl()
4686 if ((ifp->valid_lft != INFINITY_LIFE_TIME) && in addrconf_verify_rtnl()
4687 (time_before(ifp->tstamp + ifp->valid_lft * HZ, next))) in addrconf_verify_rtnl()
4688 next = ifp->tstamp + ifp->valid_lft * HZ; in addrconf_verify_rtnl()
4690 spin_unlock(&ifp->lock); in addrconf_verify_rtnl()
4700 /* ifp->prefered_lft <= ifp->valid_lft */ in addrconf_verify_rtnl()
4701 if (time_before(ifp->tstamp + ifp->prefered_lft * HZ, next)) in addrconf_verify_rtnl()
4702 next = ifp->tstamp + ifp->prefered_lft * HZ; in addrconf_verify_rtnl()
4703 spin_unlock(&ifp->lock); in addrconf_verify_rtnl()
4721 mod_delayed_work(addrconf_wq, &net->ipv6.addr_chk_work, next_sched - now); in addrconf_verify_rtnl()
4737 mod_delayed_work(addrconf_wq, &net->ipv6.addr_chk_work, 0); in addrconf_verify()
4773 struct net *net = sock_net(skb->sk); in inet6_rtm_deladdr()
4788 return -EINVAL; in inet6_rtm_deladdr()
4790 ifa_flags = nla_get_u32_default(tb[IFA_FLAGS], ifm->ifa_flags); in inet6_rtm_deladdr()
4796 err = inet6_addr_del(net, ifm->ifa_index, ifa_flags, pfx, in inet6_rtm_deladdr()
4797 ifm->ifa_prefixlen, extack); in inet6_rtm_deladdr()
4811 f6i = addrconf_get_prefix_route(modify_peer ? &ifp->peer_addr : &ifp->addr, in modify_prefix_route()
4812 ifp->prefix_len, in modify_prefix_route()
4813 ifp->idev->dev, 0, RTF_DEFAULT, true); in modify_prefix_route()
4815 return -ENOENT; in modify_prefix_route()
4817 prio = ifp->rt_priority ? : IP6_RT_PRIO_ADDRCONF; in modify_prefix_route()
4818 if (f6i->fib6_metric != prio) { in modify_prefix_route()
4820 ip6_del_rt(dev_net(ifp->idev->dev), f6i, false); in modify_prefix_route()
4823 addrconf_prefix_route(modify_peer ? &ifp->peer_addr : &ifp->addr, in modify_prefix_route()
4824 ifp->prefix_len, in modify_prefix_route()
4825 ifp->rt_priority, ifp->idev->dev, in modify_prefix_route()
4829 if (f6i != net->ipv6.fib6_null_entry) { in modify_prefix_route()
4830 table = f6i->fib6_table; in modify_prefix_route()
4831 spin_lock_bh(&table->tb6_lock); in modify_prefix_route()
4841 spin_unlock_bh(&table->tb6_lock); in modify_prefix_route()
4858 if (cfg->ifa_flags & IFA_F_MANAGETEMPADDR && in inet6_addr_modify()
4859 (ifp->flags & IFA_F_TEMPORARY || ifp->prefix_len != 64)) in inet6_addr_modify()
4860 return -EINVAL; in inet6_addr_modify()
4862 if (!(ifp->flags & IFA_F_TENTATIVE) || ifp->flags & IFA_F_DADFAILED) in inet6_addr_modify()
4863 cfg->ifa_flags &= ~IFA_F_OPTIMISTIC; in inet6_addr_modify()
4865 if (cfg->peer_pfx && in inet6_addr_modify()
4866 memcmp(&ifp->peer_addr, cfg->peer_pfx, sizeof(struct in6_addr))) { in inet6_addr_modify()
4867 if (!ipv6_addr_any(&ifp->peer_addr)) in inet6_addr_modify()
4872 spin_lock_bh(&ifp->lock); in inet6_addr_modify()
4873 was_managetempaddr = ifp->flags & IFA_F_MANAGETEMPADDR; in inet6_addr_modify()
4874 had_prefixroute = ifp->flags & IFA_F_PERMANENT && in inet6_addr_modify()
4875 !(ifp->flags & IFA_F_NOPREFIXROUTE); in inet6_addr_modify()
4876 ifp->flags &= ~(IFA_F_DEPRECATED | IFA_F_PERMANENT | IFA_F_NODAD | in inet6_addr_modify()
4879 ifp->flags |= cfg->ifa_flags; in inet6_addr_modify()
4880 WRITE_ONCE(ifp->tstamp, jiffies); in inet6_addr_modify()
4881 WRITE_ONCE(ifp->valid_lft, cfg->valid_lft); in inet6_addr_modify()
4882 WRITE_ONCE(ifp->prefered_lft, cfg->preferred_lft); in inet6_addr_modify()
4883 WRITE_ONCE(ifp->ifa_proto, cfg->ifa_proto); in inet6_addr_modify()
4885 if (cfg->rt_priority && cfg->rt_priority != ifp->rt_priority) in inet6_addr_modify()
4886 WRITE_ONCE(ifp->rt_priority, cfg->rt_priority); in inet6_addr_modify()
4889 ifp->peer_addr = *cfg->peer_pfx; in inet6_addr_modify()
4891 spin_unlock_bh(&ifp->lock); in inet6_addr_modify()
4892 if (!(ifp->flags&IFA_F_TENTATIVE)) in inet6_addr_modify()
4895 if (!(cfg->ifa_flags & IFA_F_NOPREFIXROUTE)) { in inet6_addr_modify()
4896 int rc = -ENOENT; in inet6_addr_modify()
4901 /* prefix route could have been deleted; if so restore it */ in inet6_addr_modify()
4902 if (rc == -ENOENT) { in inet6_addr_modify()
4903 addrconf_prefix_route(&ifp->addr, ifp->prefix_len, in inet6_addr_modify()
4904 ifp->rt_priority, ifp->idev->dev, in inet6_addr_modify()
4908 if (had_prefixroute && !ipv6_addr_any(&ifp->peer_addr)) in inet6_addr_modify()
4911 if (rc == -ENOENT && !ipv6_addr_any(&ifp->peer_addr)) { in inet6_addr_modify()
4912 addrconf_prefix_route(&ifp->peer_addr, ifp->prefix_len, in inet6_addr_modify()
4913 ifp->rt_priority, ifp->idev->dev, in inet6_addr_modify()
4920 write_lock_bh(&ifp->idev->lock); in inet6_addr_modify()
4922 write_unlock_bh(&ifp->idev->lock); in inet6_addr_modify()
4930 if (was_managetempaddr || ifp->flags & IFA_F_MANAGETEMPADDR) { in inet6_addr_modify()
4931 if (was_managetempaddr && !(ifp->flags & IFA_F_MANAGETEMPADDR)) in inet6_addr_modify()
4932 delete_tempaddrs(ifp->idev, ifp); in inet6_addr_modify()
4934 manage_tempaddrs(ifp->idev, ifp, cfg->valid_lft, in inet6_addr_modify()
4935 cfg->preferred_lft, !was_managetempaddr, in inet6_addr_modify()
4948 struct net *net = sock_net(skb->sk); in inet6_rtm_newaddr()
4971 return -EINVAL; in inet6_rtm_newaddr()
4974 cfg.plen = ifm->ifa_prefixlen; in inet6_rtm_newaddr()
4981 cfg.ifa_flags = nla_get_u32_default(tb[IFA_FLAGS], ifm->ifa_flags); in inet6_rtm_newaddr()
4998 cfg.valid_lft = ci->ifa_valid; in inet6_rtm_newaddr()
4999 cfg.preferred_lft = ci->ifa_prefered; in inet6_rtm_newaddr()
5003 return -EINVAL; in inet6_rtm_newaddr()
5025 dev = __dev_get_by_index(net, ifm->ifa_index); in inet6_rtm_newaddr()
5028 err = -ENODEV; in inet6_rtm_newaddr()
5044 err = -EINVAL; in inet6_rtm_newaddr()
5058 if (nlh->nlmsg_flags & NLM_F_EXCL || in inet6_rtm_newaddr()
5059 !(nlh->nlmsg_flags & NLM_F_REPLACE)) { in inet6_rtm_newaddr()
5061 err = -EEXIST; in inet6_rtm_newaddr()
5079 ifm->ifa_family = AF_INET6; in put_ifaddrmsg()
5080 ifm->ifa_prefixlen = prefixlen; in put_ifaddrmsg()
5081 ifm->ifa_flags = flags; in put_ifaddrmsg()
5082 ifm->ifa_scope = scope; in put_ifaddrmsg()
5083 ifm->ifa_index = ifindex; in put_ifaddrmsg()
5131 nlh = nlmsg_put(skb, args->portid, args->seq, args->event, in inet6_fill_ifaddr()
5132 sizeof(struct ifaddrmsg), args->flags); in inet6_fill_ifaddr()
5134 return -EMSGSIZE; in inet6_fill_ifaddr()
5136 flags = READ_ONCE(ifa->flags); in inet6_fill_ifaddr()
5137 put_ifaddrmsg(nlh, ifa->prefix_len, ifa->flags, rt_scope(ifa->scope), in inet6_fill_ifaddr()
5138 ifa->idev->dev->ifindex); in inet6_fill_ifaddr()
5140 if (args->netnsid >= 0 && in inet6_fill_ifaddr()
5141 nla_put_s32(skb, IFA_TARGET_NETNSID, args->netnsid)) in inet6_fill_ifaddr()
5144 preferred = READ_ONCE(ifa->prefered_lft); in inet6_fill_ifaddr()
5145 valid = READ_ONCE(ifa->valid_lft); in inet6_fill_ifaddr()
5150 long tval = (jiffies - READ_ONCE(ifa->tstamp)) / HZ; in inet6_fill_ifaddr()
5153 preferred -= tval; in inet6_fill_ifaddr()
5158 valid -= tval; in inet6_fill_ifaddr()
5168 if (!ipv6_addr_any(&ifa->peer_addr)) { in inet6_fill_ifaddr()
5169 if (nla_put_in6_addr(skb, IFA_LOCAL, &ifa->addr) < 0 || in inet6_fill_ifaddr()
5170 nla_put_in6_addr(skb, IFA_ADDRESS, &ifa->peer_addr) < 0) in inet6_fill_ifaddr()
5173 if (nla_put_in6_addr(skb, IFA_ADDRESS, &ifa->addr) < 0) in inet6_fill_ifaddr()
5177 priority = READ_ONCE(ifa->rt_priority); in inet6_fill_ifaddr()
5181 if (put_cacheinfo(skb, ifa->cstamp, READ_ONCE(ifa->tstamp), in inet6_fill_ifaddr()
5188 proto = READ_ONCE(ifa->ifa_proto); in inet6_fill_ifaddr()
5197 return -EMSGSIZE; in inet6_fill_ifaddr()
5204 int ifindex = ifmca->idev->dev->ifindex; in inet6_fill_ifmcaddr()
5208 if (!args->force_rt_scope_universe && in inet6_fill_ifmcaddr()
5209 ipv6_addr_scope(&ifmca->mca_addr) & IFA_SITE) in inet6_fill_ifmcaddr()
5212 nlh = nlmsg_put(skb, args->portid, args->seq, args->event, in inet6_fill_ifmcaddr()
5213 sizeof(struct ifaddrmsg), args->flags); in inet6_fill_ifmcaddr()
5215 return -EMSGSIZE; in inet6_fill_ifmcaddr()
5217 if (args->netnsid >= 0 && in inet6_fill_ifmcaddr()
5218 nla_put_s32(skb, IFA_TARGET_NETNSID, args->netnsid)) { in inet6_fill_ifmcaddr()
5220 return -EMSGSIZE; in inet6_fill_ifmcaddr()
5224 if (nla_put_in6_addr(skb, IFA_MULTICAST, &ifmca->mca_addr) < 0 || in inet6_fill_ifmcaddr()
5225 put_cacheinfo(skb, ifmca->mca_cstamp, READ_ONCE(ifmca->mca_tstamp), in inet6_fill_ifmcaddr()
5228 return -EMSGSIZE; in inet6_fill_ifmcaddr()
5239 struct net_device *dev = fib6_info_nh_dev(ifaca->aca_rt); in inet6_fill_ifacaddr()
5240 int ifindex = dev ? dev->ifindex : 1; in inet6_fill_ifacaddr()
5244 if (ipv6_addr_scope(&ifaca->aca_addr) & IFA_SITE) in inet6_fill_ifacaddr()
5247 nlh = nlmsg_put(skb, args->portid, args->seq, args->event, in inet6_fill_ifacaddr()
5248 sizeof(struct ifaddrmsg), args->flags); in inet6_fill_ifacaddr()
5250 return -EMSGSIZE; in inet6_fill_ifacaddr()
5252 if (args->netnsid >= 0 && in inet6_fill_ifacaddr()
5253 nla_put_s32(skb, IFA_TARGET_NETNSID, args->netnsid)) { in inet6_fill_ifacaddr()
5255 return -EMSGSIZE; in inet6_fill_ifacaddr()
5259 if (nla_put_in6_addr(skb, IFA_ANYCAST, &ifaca->aca_addr) < 0 || in inet6_fill_ifacaddr()
5260 put_cacheinfo(skb, ifaca->aca_cstamp, READ_ONCE(ifaca->aca_tstamp), in inet6_fill_ifacaddr()
5263 return -EMSGSIZE; in inet6_fill_ifacaddr()
5280 switch (fillargs->type) { in in6_dump_addrs()
5283 fillargs->event = RTM_NEWADDR; in in6_dump_addrs()
5286 list_for_each_entry_rcu(ifa, &idev->addr_list, if_list) { in in6_dump_addrs()
5299 fillargs->event = RTM_GETMULTICAST; in in6_dump_addrs()
5302 for (ifmca = rcu_dereference(idev->mc_list); in in6_dump_addrs()
5304 ifmca = rcu_dereference(ifmca->next), ip_idx++) { in in6_dump_addrs()
5313 fillargs->event = RTM_GETANYCAST; in in6_dump_addrs()
5315 for (ifaca = rcu_dereference(idev->ac_list); ifaca; in in6_dump_addrs()
5316 ifaca = rcu_dereference(ifaca->aca_next), ip_idx++) { in in6_dump_addrs()
5336 struct netlink_ext_ack *extack = cb->extack; in inet6_valid_dump_ifaddr_req()
5341 if (nlh->nlmsg_len < nlmsg_msg_size(sizeof(*ifm))) { in inet6_valid_dump_ifaddr_req()
5343 return -EINVAL; in inet6_valid_dump_ifaddr_req()
5347 if (ifm->ifa_prefixlen || ifm->ifa_flags || ifm->ifa_scope) { in inet6_valid_dump_ifaddr_req()
5349 return -EINVAL; in inet6_valid_dump_ifaddr_req()
5352 fillargs->ifindex = ifm->ifa_index; in inet6_valid_dump_ifaddr_req()
5353 if (fillargs->ifindex) { in inet6_valid_dump_ifaddr_req()
5354 cb->answer_flags |= NLM_F_DUMP_FILTERED; in inet6_valid_dump_ifaddr_req()
5355 fillargs->flags |= NLM_F_DUMP_FILTERED; in inet6_valid_dump_ifaddr_req()
5370 fillargs->netnsid = nla_get_s32(tb[i]); in inet6_valid_dump_ifaddr_req()
5371 net = rtnl_get_net_ns_capable(sk, fillargs->netnsid); in inet6_valid_dump_ifaddr_req()
5373 fillargs->netnsid = -1; in inet6_valid_dump_ifaddr_req()
5380 return -EINVAL; in inet6_valid_dump_ifaddr_req()
5390 struct net *tgt_net = sock_net(skb->sk); in inet6_dump_addr()
5391 const struct nlmsghdr *nlh = cb->nlh; in inet6_dump_addr()
5393 .portid = NETLINK_CB(cb->skb).portid, in inet6_dump_addr()
5394 .seq = cb->nlh->nlmsg_seq, in inet6_dump_addr()
5396 .netnsid = -1, in inet6_dump_addr()
5403 } *ctx = (void *)cb->ctx; in inet6_dump_addr()
5409 if (cb->strict_check) { in inet6_dump_addr()
5411 skb->sk, cb); in inet6_dump_addr()
5419 err = -ENODEV; in inet6_dump_addr()
5425 &ctx->ip_idx, in inet6_dump_addr()
5431 cb->seq = inet6_base_seq(tgt_net); in inet6_dump_addr()
5432 for_each_netdev_dump(tgt_net, dev, ctx->ifindex) { in inet6_dump_addr()
5436 err = in6_dump_addrs(idev, skb, cb, &ctx->ip_idx, in inet6_dump_addr()
5479 if (nlh->nlmsg_len < nlmsg_msg_size(sizeof(*ifm))) { in inet6_rtm_valid_getaddr_req()
5481 return -EINVAL; in inet6_rtm_valid_getaddr_req()
5489 if (ifm->ifa_prefixlen || ifm->ifa_flags || ifm->ifa_scope) { in inet6_rtm_valid_getaddr_req()
5491 return -EINVAL; in inet6_rtm_valid_getaddr_req()
5510 return -EINVAL; in inet6_rtm_valid_getaddr_req()
5520 struct net *tgt_net = sock_net(in_skb->sk); in inet6_rtm_getaddr()
5523 .seq = nlh->nlmsg_seq, in inet6_rtm_getaddr()
5526 .netnsid = -1, in inet6_rtm_getaddr()
5552 err = -EINVAL; in inet6_rtm_getaddr()
5556 if (ifm->ifa_index) in inet6_rtm_getaddr()
5557 dev = dev_get_by_index(tgt_net, ifm->ifa_index); in inet6_rtm_getaddr()
5561 err = -EADDRNOTAVAIL; in inet6_rtm_getaddr()
5567 err = -ENOBUFS; in inet6_rtm_getaddr()
5573 /* -EMSGSIZE implies BUG in inet6_ifaddr_msgsize() */ in inet6_rtm_getaddr()
5574 WARN_ON(err == -EMSGSIZE); in inet6_rtm_getaddr()
5592 struct net *net = dev_net(ifa->idev->dev); in inet6_ifa_notify()
5598 .netnsid = -1, in inet6_ifa_notify()
5601 int err = -ENOBUFS; in inet6_ifa_notify()
5609 /* -EMSGSIZE implies BUG in inet6_ifaddr_msgsize() */ in inet6_ifa_notify()
5610 WARN_ON(err == -EMSGSIZE); in inet6_ifa_notify()
5626 array[DEVCONF_FORWARDING] = READ_ONCE(cnf->forwarding); in ipv6_store_devconf()
5627 array[DEVCONF_HOPLIMIT] = READ_ONCE(cnf->hop_limit); in ipv6_store_devconf()
5628 array[DEVCONF_MTU6] = READ_ONCE(cnf->mtu6); in ipv6_store_devconf()
5629 array[DEVCONF_ACCEPT_RA] = READ_ONCE(cnf->accept_ra); in ipv6_store_devconf()
5630 array[DEVCONF_ACCEPT_REDIRECTS] = READ_ONCE(cnf->accept_redirects); in ipv6_store_devconf()
5631 array[DEVCONF_AUTOCONF] = READ_ONCE(cnf->autoconf); in ipv6_store_devconf()
5632 array[DEVCONF_DAD_TRANSMITS] = READ_ONCE(cnf->dad_transmits); in ipv6_store_devconf()
5633 array[DEVCONF_RTR_SOLICITS] = READ_ONCE(cnf->rtr_solicits); in ipv6_store_devconf()
5635 jiffies_to_msecs(READ_ONCE(cnf->rtr_solicit_interval)); in ipv6_store_devconf()
5637 jiffies_to_msecs(READ_ONCE(cnf->rtr_solicit_max_interval)); in ipv6_store_devconf()
5639 jiffies_to_msecs(READ_ONCE(cnf->rtr_solicit_delay)); in ipv6_store_devconf()
5640 array[DEVCONF_FORCE_MLD_VERSION] = READ_ONCE(cnf->force_mld_version); in ipv6_store_devconf()
5642 jiffies_to_msecs(READ_ONCE(cnf->mldv1_unsolicited_report_interval)); in ipv6_store_devconf()
5644 jiffies_to_msecs(READ_ONCE(cnf->mldv2_unsolicited_report_interval)); in ipv6_store_devconf()
5645 array[DEVCONF_USE_TEMPADDR] = READ_ONCE(cnf->use_tempaddr); in ipv6_store_devconf()
5646 array[DEVCONF_TEMP_VALID_LFT] = READ_ONCE(cnf->temp_valid_lft); in ipv6_store_devconf()
5647 array[DEVCONF_TEMP_PREFERED_LFT] = READ_ONCE(cnf->temp_prefered_lft); in ipv6_store_devconf()
5648 array[DEVCONF_REGEN_MAX_RETRY] = READ_ONCE(cnf->regen_max_retry); in ipv6_store_devconf()
5649 array[DEVCONF_MAX_DESYNC_FACTOR] = READ_ONCE(cnf->max_desync_factor); in ipv6_store_devconf()
5650 array[DEVCONF_MAX_ADDRESSES] = READ_ONCE(cnf->max_addresses); in ipv6_store_devconf()
5651 array[DEVCONF_ACCEPT_RA_DEFRTR] = READ_ONCE(cnf->accept_ra_defrtr); in ipv6_store_devconf()
5652 array[DEVCONF_RA_DEFRTR_METRIC] = READ_ONCE(cnf->ra_defrtr_metric); in ipv6_store_devconf()
5654 READ_ONCE(cnf->accept_ra_min_hop_limit); in ipv6_store_devconf()
5655 array[DEVCONF_ACCEPT_RA_PINFO] = READ_ONCE(cnf->accept_ra_pinfo); in ipv6_store_devconf()
5657 array[DEVCONF_ACCEPT_RA_RTR_PREF] = READ_ONCE(cnf->accept_ra_rtr_pref); in ipv6_store_devconf()
5659 jiffies_to_msecs(READ_ONCE(cnf->rtr_probe_interval)); in ipv6_store_devconf()
5662 READ_ONCE(cnf->accept_ra_rt_info_min_plen); in ipv6_store_devconf()
5664 READ_ONCE(cnf->accept_ra_rt_info_max_plen); in ipv6_store_devconf()
5667 array[DEVCONF_PROXY_NDP] = READ_ONCE(cnf->proxy_ndp); in ipv6_store_devconf()
5669 READ_ONCE(cnf->accept_source_route); in ipv6_store_devconf()
5671 array[DEVCONF_OPTIMISTIC_DAD] = READ_ONCE(cnf->optimistic_dad); in ipv6_store_devconf()
5672 array[DEVCONF_USE_OPTIMISTIC] = READ_ONCE(cnf->use_optimistic); in ipv6_store_devconf()
5675 array[DEVCONF_MC_FORWARDING] = atomic_read(&cnf->mc_forwarding); in ipv6_store_devconf()
5677 array[DEVCONF_DISABLE_IPV6] = READ_ONCE(cnf->disable_ipv6); in ipv6_store_devconf()
5678 array[DEVCONF_ACCEPT_DAD] = READ_ONCE(cnf->accept_dad); in ipv6_store_devconf()
5679 array[DEVCONF_FORCE_TLLAO] = READ_ONCE(cnf->force_tllao); in ipv6_store_devconf()
5680 array[DEVCONF_NDISC_NOTIFY] = READ_ONCE(cnf->ndisc_notify); in ipv6_store_devconf()
5682 READ_ONCE(cnf->suppress_frag_ndisc); in ipv6_store_devconf()
5684 READ_ONCE(cnf->accept_ra_from_local); in ipv6_store_devconf()
5685 array[DEVCONF_ACCEPT_RA_MTU] = READ_ONCE(cnf->accept_ra_mtu); in ipv6_store_devconf()
5687 READ_ONCE(cnf->ignore_routes_with_linkdown); in ipv6_store_devconf()
5689 array[DEVCONF_USE_OIF_ADDRS_ONLY] = READ_ONCE(cnf->use_oif_addrs_only); in ipv6_store_devconf()
5691 READ_ONCE(cnf->drop_unicast_in_l2_multicast); in ipv6_store_devconf()
5692 array[DEVCONF_DROP_UNSOLICITED_NA] = READ_ONCE(cnf->drop_unsolicited_na); in ipv6_store_devconf()
5693 array[DEVCONF_KEEP_ADDR_ON_DOWN] = READ_ONCE(cnf->keep_addr_on_down); in ipv6_store_devconf()
5694 array[DEVCONF_SEG6_ENABLED] = READ_ONCE(cnf->seg6_enabled); in ipv6_store_devconf()
5696 array[DEVCONF_SEG6_REQUIRE_HMAC] = READ_ONCE(cnf->seg6_require_hmac); in ipv6_store_devconf()
5698 array[DEVCONF_ENHANCED_DAD] = READ_ONCE(cnf->enhanced_dad); in ipv6_store_devconf()
5699 array[DEVCONF_ADDR_GEN_MODE] = READ_ONCE(cnf->addr_gen_mode); in ipv6_store_devconf()
5700 array[DEVCONF_DISABLE_POLICY] = READ_ONCE(cnf->disable_policy); in ipv6_store_devconf()
5701 array[DEVCONF_NDISC_TCLASS] = READ_ONCE(cnf->ndisc_tclass); in ipv6_store_devconf()
5702 array[DEVCONF_RPL_SEG_ENABLED] = READ_ONCE(cnf->rpl_seg_enabled); in ipv6_store_devconf()
5703 array[DEVCONF_IOAM6_ENABLED] = READ_ONCE(cnf->ioam6_enabled); in ipv6_store_devconf()
5704 array[DEVCONF_IOAM6_ID] = READ_ONCE(cnf->ioam6_id); in ipv6_store_devconf()
5705 array[DEVCONF_IOAM6_ID_WIDE] = READ_ONCE(cnf->ioam6_id_wide); in ipv6_store_devconf()
5707 READ_ONCE(cnf->ndisc_evict_nocarrier); in ipv6_store_devconf()
5709 READ_ONCE(cnf->accept_untracked_na); in ipv6_store_devconf()
5710 array[DEVCONF_ACCEPT_RA_MIN_LFT] = READ_ONCE(cnf->accept_ra_min_lft); in ipv6_store_devconf()
5741 int pad = bytes - sizeof(u64) * ICMP6_MIB_MAX; in __snmp6_fill_statsdev()
5757 int pad = bytes - sizeof(u64) * IPSTATS_MIB_MAX; in __snmp6_fill_stats64()
5778 __snmp6_fill_stats64(stats, idev->stats.ipv6, bytes, in snmp6_fill_stats()
5782 __snmp6_fill_statsdev(stats, idev->stats.icmpv6dev->mibs, bytes); in snmp6_fill_stats()
5805 return -EMSGSIZE; in inet6_fill_ifla6_stats_attrs()
5815 if (nla_put_u32(skb, IFLA_INET6_FLAGS, READ_ONCE(idev->if_flags))) in inet6_fill_ifla6_attrs()
5818 ci.tstamp = cstamp_delta(READ_ONCE(idev->tstamp)); in inet6_fill_ifla6_attrs()
5819 ci.reachable_time = jiffies_to_msecs(idev->nd_parms->reachable_time); in inet6_fill_ifla6_attrs()
5820 ci.retrans_time = jiffies_to_msecs(NEIGH_VAR(idev->nd_parms, RETRANS_TIME)); in inet6_fill_ifla6_attrs()
5826 ipv6_store_devconf(&idev->cnf, nla_data(nla), nla_len(nla)); in inet6_fill_ifla6_attrs()
5828 /* XXX - MC not implemented */ in inet6_fill_ifla6_attrs()
5838 read_lock_bh(&idev->lock); in inet6_fill_ifla6_attrs()
5839 memcpy(nla_data(nla), idev->token.s6_addr, nla_len(nla)); in inet6_fill_ifla6_attrs()
5840 read_unlock_bh(&idev->lock); in inet6_fill_ifla6_attrs()
5843 READ_ONCE(idev->cnf.addr_gen_mode))) in inet6_fill_ifla6_attrs()
5846 ra_mtu = READ_ONCE(idev->ra_mtu); in inet6_fill_ifla6_attrs()
5853 return -EMSGSIZE; in inet6_fill_ifla6_attrs()
5871 return -ENODATA; in inet6_fill_link_af()
5874 return -EMSGSIZE; in inet6_fill_link_af()
5883 struct net_device *dev = idev->dev; in inet6_set_iftoken()
5890 return -EINVAL; in inet6_set_iftoken()
5892 if (dev->flags & IFF_LOOPBACK) { in inet6_set_iftoken()
5894 return -EINVAL; in inet6_set_iftoken()
5897 if (dev->flags & IFF_NOARP) { in inet6_set_iftoken()
5900 return -EINVAL; in inet6_set_iftoken()
5906 return -EINVAL; in inet6_set_iftoken()
5909 if (READ_ONCE(idev->cnf.rtr_solicits) == 0) { in inet6_set_iftoken()
5912 return -EINVAL; in inet6_set_iftoken()
5915 write_lock_bh(&idev->lock); in inet6_set_iftoken()
5917 BUILD_BUG_ON(sizeof(token->s6_addr) != 16); in inet6_set_iftoken()
5918 memcpy(idev->token.s6_addr + 8, token->s6_addr + 8, 8); in inet6_set_iftoken()
5920 write_unlock_bh(&idev->lock); in inet6_set_iftoken()
5926 if (!idev->dead && (idev->if_flags & IF_READY) && in inet6_set_iftoken()
5937 write_lock_bh(&idev->lock); in inet6_set_iftoken()
5940 idev->if_flags |= IF_RS_SENT; in inet6_set_iftoken()
5941 idev->rs_interval = rfc3315_s14_backoff_init( in inet6_set_iftoken()
5942 READ_ONCE(idev->cnf.rtr_solicit_interval)); in inet6_set_iftoken()
5943 idev->rs_probes = 1; in inet6_set_iftoken()
5944 addrconf_mod_rs_timer(idev, idev->rs_interval); in inet6_set_iftoken()
5948 list_for_each_entry(ifp, &idev->addr_list, if_list) { in inet6_set_iftoken()
5949 spin_lock(&ifp->lock); in inet6_set_iftoken()
5950 if (ifp->tokenized) { in inet6_set_iftoken()
5951 ifp->valid_lft = 0; in inet6_set_iftoken()
5952 ifp->prefered_lft = 0; in inet6_set_iftoken()
5954 spin_unlock(&ifp->lock); in inet6_set_iftoken()
5957 write_unlock_bh(&idev->lock); in inet6_set_iftoken()
5977 return -EINVAL; in check_addr_gen_mode()
5985 !idev->cnf.stable_secret.initialized && in check_stable_privacy()
5986 !net->ipv6.devconf_dflt->stable_secret.initialized) in check_stable_privacy()
5987 return -EINVAL; in check_stable_privacy()
6002 return -EAFNOSUPPORT; in inet6_validate_link_af()
6011 return -EINVAL; in inet6_validate_link_af()
6017 return -EINVAL; in inet6_validate_link_af()
6019 return -EINVAL; in inet6_validate_link_af()
6033 return -EAFNOSUPPORT; in inet6_set_link_af()
6036 return -EINVAL; in inet6_set_link_af()
6048 WRITE_ONCE(idev->cnf.addr_gen_mode, mode); in inet6_set_link_af()
6057 struct net_device *dev = idev->dev; in inet6_fill_ifinfo()
6065 return -EMSGSIZE; in inet6_fill_ifinfo()
6068 hdr->ifi_family = AF_INET6; in inet6_fill_ifinfo()
6069 hdr->__ifi_pad = 0; in inet6_fill_ifinfo()
6070 hdr->ifi_type = dev->type; in inet6_fill_ifinfo()
6071 ifindex = READ_ONCE(dev->ifindex); in inet6_fill_ifinfo()
6072 hdr->ifi_index = ifindex; in inet6_fill_ifinfo()
6073 hdr->ifi_flags = dev_get_flags(dev); in inet6_fill_ifinfo()
6074 hdr->ifi_change = 0; in inet6_fill_ifinfo()
6077 if (nla_put_string(skb, IFLA_IFNAME, dev->name) || in inet6_fill_ifinfo()
6078 (dev->addr_len && in inet6_fill_ifinfo()
6079 nla_put(skb, IFLA_ADDRESS, dev->addr_len, dev->dev_addr)) || in inet6_fill_ifinfo()
6080 nla_put_u32(skb, IFLA_MTU, READ_ONCE(dev->mtu)) || in inet6_fill_ifinfo()
6084 netif_running(dev) ? READ_ONCE(dev->operstate) : IF_OPER_DOWN)) in inet6_fill_ifinfo()
6099 return -EMSGSIZE; in inet6_fill_ifinfo()
6107 if (nlh->nlmsg_len < nlmsg_msg_size(sizeof(*ifm))) { in inet6_valid_dump_ifinfo()
6109 return -EINVAL; in inet6_valid_dump_ifinfo()
6114 return -EINVAL; in inet6_valid_dump_ifinfo()
6118 if (ifm->__ifi_pad || ifm->ifi_type || ifm->ifi_flags || in inet6_valid_dump_ifinfo()
6119 ifm->ifi_change || ifm->ifi_index) { in inet6_valid_dump_ifinfo()
6121 return -EINVAL; in inet6_valid_dump_ifinfo()
6129 struct net *net = sock_net(skb->sk); in inet6_dump_ifinfo()
6132 } *ctx = (void *)cb->ctx; in inet6_dump_ifinfo()
6140 if (cb->strict_check) { in inet6_dump_ifinfo()
6141 err = inet6_valid_dump_ifinfo(cb->nlh, cb->extack); in inet6_dump_ifinfo()
6149 for_each_netdev_dump(net, dev, ctx->ifindex) { in inet6_dump_ifinfo()
6154 NETLINK_CB(cb->skb).portid, in inet6_dump_ifinfo()
6155 cb->nlh->nlmsg_seq, in inet6_dump_ifinfo()
6168 struct net *net = dev_net(idev->dev); in inet6_ifinfo_notify()
6169 int err = -ENOBUFS; in inet6_ifinfo_notify()
6177 /* -EMSGSIZE implies BUG in inet6_if_nlmsg_size() */ in inet6_ifinfo_notify()
6178 WARN_ON(err == -EMSGSIZE); in inet6_ifinfo_notify()
6205 return -EMSGSIZE; in inet6_fill_prefix()
6208 pmsg->prefix_family = AF_INET6; in inet6_fill_prefix()
6209 pmsg->prefix_pad1 = 0; in inet6_fill_prefix()
6210 pmsg->prefix_pad2 = 0; in inet6_fill_prefix()
6211 pmsg->prefix_ifindex = idev->dev->ifindex; in inet6_fill_prefix()
6212 pmsg->prefix_len = pinfo->prefix_len; in inet6_fill_prefix()
6213 pmsg->prefix_type = pinfo->type; in inet6_fill_prefix()
6214 pmsg->prefix_pad3 = 0; in inet6_fill_prefix()
6215 pmsg->prefix_flags = pinfo->flags; in inet6_fill_prefix()
6217 if (nla_put(skb, PREFIX_ADDRESS, sizeof(pinfo->prefix), &pinfo->prefix)) in inet6_fill_prefix()
6219 ci.preferred_time = ntohl(pinfo->prefered); in inet6_fill_prefix()
6220 ci.valid_time = ntohl(pinfo->valid); in inet6_fill_prefix()
6228 return -EMSGSIZE; in inet6_fill_prefix()
6235 struct net *net = dev_net(idev->dev); in inet6_prefix_notify()
6236 int err = -ENOBUFS; in inet6_prefix_notify()
6244 /* -EMSGSIZE implies BUG in inet6_prefix_nlmsg_size() */ in inet6_prefix_notify()
6245 WARN_ON(err == -EMSGSIZE); in inet6_prefix_notify()
6257 struct net *net = dev_net(ifp->idev->dev); in __ipv6_ifa_notify()
6267 * If the address was optimistic we inserted the route at the in __ipv6_ifa_notify()
6271 * host route, so nothing to insert. That will be fixed when in __ipv6_ifa_notify()
6274 if (ifp->rt && !rcu_access_pointer(ifp->rt->fib6_node)) { in __ipv6_ifa_notify()
6275 ip6_ins_rt(net, ifp->rt); in __ipv6_ifa_notify()
6276 } else if (!ifp->rt && (ifp->idev->dev->flags & IFF_UP)) { in __ipv6_ifa_notify()
6277 pr_warn("BUG: Address %pI6c on device %s is missing its host route.\n", in __ipv6_ifa_notify()
6278 &ifp->addr, ifp->idev->dev->name); in __ipv6_ifa_notify()
6281 if (ifp->idev->cnf.forwarding) in __ipv6_ifa_notify()
6283 if (!ipv6_addr_any(&ifp->peer_addr)) in __ipv6_ifa_notify()
6284 addrconf_prefix_route(&ifp->peer_addr, 128, in __ipv6_ifa_notify()
6285 ifp->rt_priority, ifp->idev->dev, in __ipv6_ifa_notify()
6289 if (ifp->idev->cnf.forwarding) in __ipv6_ifa_notify()
6291 addrconf_leave_solict(ifp->idev, &ifp->addr); in __ipv6_ifa_notify()
6292 if (!ipv6_addr_any(&ifp->peer_addr)) { in __ipv6_ifa_notify()
6295 rt = addrconf_get_prefix_route(&ifp->peer_addr, 128, in __ipv6_ifa_notify()
6296 ifp->idev->dev, 0, 0, in __ipv6_ifa_notify()
6301 if (ifp->rt) { in __ipv6_ifa_notify()
6302 ip6_del_rt(net, ifp->rt, false); in __ipv6_ifa_notify()
6303 ifp->rt = NULL; in __ipv6_ifa_notify()
6308 atomic_inc(&net->ipv6.dev_addr_genid); in __ipv6_ifa_notify()
6313 if (likely(ifp->idev->dead == 0)) in ipv6_ifa_notify()
6322 int *valp = ctl->data; in addrconf_sysctl_forward()
6329 * ctl->data points to idev->cnf.forwarding, we should in addrconf_sysctl_forward()
6347 struct inet6_dev *idev = ctl->extra1; in addrconf_sysctl_mtu()
6353 lctl.extra2 = idev ? &idev->dev->mtu : NULL; in addrconf_sysctl_mtu()
6362 if (!idev || !idev->dev) in dev_disable_change()
6365 netdev_notifier_info_init(&info, idev->dev); in dev_disable_change()
6366 if (idev->cnf.disable_ipv6) in dev_disable_change()
6380 int changed = (!idev->cnf.disable_ipv6) ^ (!newf); in addrconf_disable_change()
6382 WRITE_ONCE(idev->cnf.disable_ipv6, newf); in addrconf_disable_change()
6391 struct net *net = (struct net *)table->extra2; in addrconf_disable_ipv6()
6394 if (p == &net->ipv6.devconf_dflt->disable_ipv6) { in addrconf_disable_ipv6()
6405 if (p == &net->ipv6.devconf_all->disable_ipv6) { in addrconf_disable_ipv6()
6406 WRITE_ONCE(net->ipv6.devconf_dflt->disable_ipv6, newf); in addrconf_disable_ipv6()
6409 dev_disable_change((struct inet6_dev *)table->extra1); in addrconf_disable_ipv6()
6419 int *valp = ctl->data; in addrconf_sysctl_disable()
6426 * ctl->data points to idev->cnf.disable_ipv6, we should in addrconf_sysctl_disable()
6444 int *valp = ctl->data; in addrconf_sysctl_proxy_ndp()
6453 struct net *net = ctl->extra2; in addrconf_sysctl_proxy_ndp()
6458 if (valp == &net->ipv6.devconf_dflt->proxy_ndp) { in addrconf_sysctl_proxy_ndp()
6462 net->ipv6.devconf_dflt); in addrconf_sysctl_proxy_ndp()
6463 } else if (valp == &net->ipv6.devconf_all->proxy_ndp) { in addrconf_sysctl_proxy_ndp()
6467 net->ipv6.devconf_all); in addrconf_sysctl_proxy_ndp()
6469 struct inet6_dev *idev = ctl->extra1; in addrconf_sysctl_proxy_ndp()
6473 idev->dev->ifindex, in addrconf_sysctl_proxy_ndp()
6474 &idev->cnf); in addrconf_sysctl_proxy_ndp()
6488 struct inet6_dev *idev = (struct inet6_dev *)ctl->extra1; in addrconf_sysctl_addr_gen_mode()
6489 struct net *net = (struct net *)ctl->extra2; in addrconf_sysctl_addr_gen_mode()
6493 .mode = ctl->mode, in addrconf_sysctl_addr_gen_mode()
6499 new_val = *((u32 *)ctl->data); in addrconf_sysctl_addr_gen_mode()
6507 ret = -EINVAL; in addrconf_sysctl_addr_gen_mode()
6513 ret = -EINVAL; in addrconf_sysctl_addr_gen_mode()
6517 if (idev->cnf.addr_gen_mode != new_val) { in addrconf_sysctl_addr_gen_mode()
6518 WRITE_ONCE(idev->cnf.addr_gen_mode, new_val); in addrconf_sysctl_addr_gen_mode()
6519 addrconf_init_auto_addrs(idev->dev); in addrconf_sysctl_addr_gen_mode()
6521 } else if (&net->ipv6.devconf_all->addr_gen_mode == ctl->data) { in addrconf_sysctl_addr_gen_mode()
6524 WRITE_ONCE(net->ipv6.devconf_dflt->addr_gen_mode, new_val); in addrconf_sysctl_addr_gen_mode()
6528 idev->cnf.addr_gen_mode != new_val) { in addrconf_sysctl_addr_gen_mode()
6529 WRITE_ONCE(idev->cnf.addr_gen_mode, in addrconf_sysctl_addr_gen_mode()
6531 addrconf_init_auto_addrs(idev->dev); in addrconf_sysctl_addr_gen_mode()
6536 WRITE_ONCE(*((u32 *)ctl->data), new_val); in addrconf_sysctl_addr_gen_mode()
6553 struct net *net = ctl->extra2; in addrconf_sysctl_stable_secret()
6554 struct ipv6_stable_secret *secret = ctl->data; in addrconf_sysctl_stable_secret()
6556 if (&net->ipv6.devconf_all->stable_secret == ctl->data) in addrconf_sysctl_stable_secret()
6557 return -EIO; in addrconf_sysctl_stable_secret()
6565 if (!write && !secret->initialized) { in addrconf_sysctl_stable_secret()
6566 err = -EIO; in addrconf_sysctl_stable_secret()
6570 err = snprintf(str, sizeof(str), "%pI6", &secret->secret); in addrconf_sysctl_stable_secret()
6572 err = -EIO; in addrconf_sysctl_stable_secret()
6580 if (in6_pton(str, -1, addr.in6_u.u6_addr8, -1, NULL) != 1) { in addrconf_sysctl_stable_secret()
6581 err = -EIO; in addrconf_sysctl_stable_secret()
6585 secret->initialized = true; in addrconf_sysctl_stable_secret()
6586 secret->secret = addr; in addrconf_sysctl_stable_secret()
6588 if (&net->ipv6.devconf_dflt->stable_secret == ctl->data) { in addrconf_sysctl_stable_secret()
6595 WRITE_ONCE(idev->cnf.addr_gen_mode, in addrconf_sysctl_stable_secret()
6600 struct inet6_dev *idev = ctl->extra1; in addrconf_sysctl_stable_secret()
6602 WRITE_ONCE(idev->cnf.addr_gen_mode, in addrconf_sysctl_stable_secret()
6618 int *valp = ctl->data; in addrconf_sysctl_ignore_routes_with_linkdown()
6624 /* ctl->data points to idev->cnf.ignore_routes_when_linkdown in addrconf_sysctl_ignore_routes_with_linkdown()
6644 rt->dst.flags |= DST_NOPOLICY; in addrconf_set_nopolicy()
6646 rt->dst.flags &= ~DST_NOPOLICY; in addrconf_set_nopolicy()
6655 read_lock_bh(&idev->lock); in addrconf_disable_policy_idev()
6656 list_for_each_entry(ifa, &idev->addr_list, if_list) { in addrconf_disable_policy_idev()
6657 spin_lock(&ifa->lock); in addrconf_disable_policy_idev()
6658 if (ifa->rt) { in addrconf_disable_policy_idev()
6660 struct fib6_nh *nh = ifa->rt->fib6_nh; in addrconf_disable_policy_idev()
6664 ifa->rt->dst_nopolicy = val ? true : false; in addrconf_disable_policy_idev()
6665 if (nh->rt6i_pcpu) { in addrconf_disable_policy_idev()
6669 rtp = per_cpu_ptr(nh->rt6i_pcpu, cpu); in addrconf_disable_policy_idev()
6675 spin_unlock(&ifa->lock); in addrconf_disable_policy_idev()
6677 read_unlock_bh(&idev->lock); in addrconf_disable_policy_idev()
6683 struct net *net = (struct net *)ctl->extra2; in addrconf_disable_policy()
6686 if (valp == &net->ipv6.devconf_dflt->disable_policy) { in addrconf_disable_policy()
6696 if (valp == &net->ipv6.devconf_all->disable_policy) { in addrconf_disable_policy()
6705 idev = (struct inet6_dev *)ctl->extra1; in addrconf_disable_policy()
6716 int *valp = ctl->data; in addrconf_sysctl_disable_policy()
6735 static int minus_one = -1;
7220 table[i].data += (char *)p - (char *)&ipv6_devconf; in __addrconf_sysctl_register()
7233 p->sysctl_header = register_net_sysctl_sz(net, path, table, in __addrconf_sysctl_register()
7235 if (!p->sysctl_header) in __addrconf_sysctl_register()
7243 ifindex = idev->dev->ifindex; in __addrconf_sysctl_register()
7251 return -ENOBUFS; in __addrconf_sysctl_register()
7259 if (!p->sysctl_header) in __addrconf_sysctl_unregister()
7262 table = p->sysctl_header->ctl_table_arg; in __addrconf_sysctl_unregister()
7263 unregister_net_sysctl_table(p->sysctl_header); in __addrconf_sysctl_unregister()
7264 p->sysctl_header = NULL; in __addrconf_sysctl_unregister()
7274 if (!sysctl_dev_name_is_allowed(idev->dev->name)) in addrconf_sysctl_register()
7275 return -EINVAL; in addrconf_sysctl_register()
7277 err = neigh_sysctl_register(idev->dev, idev->nd_parms, in addrconf_sysctl_register()
7281 err = __addrconf_sysctl_register(dev_net(idev->dev), idev->dev->name, in addrconf_sysctl_register()
7282 idev, &idev->cnf); in addrconf_sysctl_register()
7284 neigh_sysctl_unregister(idev->nd_parms); in addrconf_sysctl_register()
7291 __addrconf_sysctl_unregister(dev_net(idev->dev), &idev->cnf, in addrconf_sysctl_unregister()
7292 idev->dev->ifindex); in addrconf_sysctl_unregister()
7293 neigh_sysctl_unregister(idev->nd_parms); in addrconf_sysctl_unregister()
7301 int err = -ENOMEM; in addrconf_init_net()
7304 spin_lock_init(&net->ipv6.addrconf_hash_lock); in addrconf_init_net()
7305 INIT_DEFERRABLE_WORK(&net->ipv6.addr_chk_work, addrconf_verify_work); in addrconf_init_net()
7306 net->ipv6.inet6_addr_lst = kcalloc(IN6_ADDR_HSIZE, in addrconf_init_net()
7309 if (!net->ipv6.inet6_addr_lst) in addrconf_init_net()
7329 memcpy(all, current->nsproxy->net_ns->ipv6.devconf_all, in addrconf_init_net()
7332 current->nsproxy->net_ns->ipv6.devconf_dflt, in addrconf_init_net()
7343 dflt->autoconf = ipv6_defaults.autoconf; in addrconf_init_net()
7344 dflt->disable_ipv6 = ipv6_defaults.disable_ipv6; in addrconf_init_net()
7346 dflt->stable_secret.initialized = false; in addrconf_init_net()
7347 all->stable_secret.initialized = false; in addrconf_init_net()
7349 net->ipv6.devconf_all = all; in addrconf_init_net()
7350 net->ipv6.devconf_dflt = dflt; in addrconf_init_net()
7368 net->ipv6.devconf_dflt = NULL; in addrconf_init_net()
7372 net->ipv6.devconf_all = NULL; in addrconf_init_net()
7374 kfree(net->ipv6.inet6_addr_lst); in addrconf_init_net()
7384 __addrconf_sysctl_unregister(net, net->ipv6.devconf_dflt, in addrconf_exit_net()
7386 __addrconf_sysctl_unregister(net, net->ipv6.devconf_all, in addrconf_exit_net()
7389 kfree(net->ipv6.devconf_dflt); in addrconf_exit_net()
7390 net->ipv6.devconf_dflt = NULL; in addrconf_exit_net()
7391 kfree(net->ipv6.devconf_all); in addrconf_exit_net()
7392 net->ipv6.devconf_all = NULL; in addrconf_exit_net()
7394 cancel_delayed_work_sync(&net->ipv6.addr_chk_work); in addrconf_exit_net()
7399 WARN_ON_ONCE(!hlist_empty(&net->ipv6.inet6_addr_lst[i])); in addrconf_exit_net()
7401 kfree(net->ipv6.inet6_addr_lst); in addrconf_exit_net()
7402 net->ipv6.inet6_addr_lst = NULL; in addrconf_exit_net()
7462 err = -ENOMEM; in addrconf_init()