Lines Matching refs:ifa
117 static void inet_hash_insert(struct net *net, struct in_ifaddr *ifa) in inet_hash_insert() argument
119 u32 hash = inet_addr_hash(net, ifa->ifa_local); in inet_hash_insert()
122 hlist_add_head_rcu(&ifa->hash, &inet_addr_lst[hash]); in inet_hash_insert()
125 static void inet_hash_remove(struct in_ifaddr *ifa) in inet_hash_remove() argument
128 hlist_del_init_rcu(&ifa->hash); in inet_hash_remove()
143 struct in_ifaddr *ifa; in __ip_dev_find() local
146 hlist_for_each_entry_rcu(ifa, &inet_addr_lst[hash], hash) { in __ip_dev_find()
147 if (ifa->ifa_local == addr) { in __ip_dev_find()
148 struct net_device *dev = ifa->ifa_dev->dev; in __ip_dev_find()
204 struct in_ifaddr *ifa = container_of(head, struct in_ifaddr, rcu_head); in inet_rcu_free_ifa() local
205 if (ifa->ifa_dev) in inet_rcu_free_ifa()
206 in_dev_put(ifa->ifa_dev); in inet_rcu_free_ifa()
207 kfree(ifa); in inet_rcu_free_ifa()
210 static void inet_free_ifa(struct in_ifaddr *ifa) in inet_free_ifa() argument
212 call_rcu(&ifa->rcu_head, inet_rcu_free_ifa); in inet_free_ifa()
286 struct in_ifaddr *ifa; in inetdev_destroy() local
297 while ((ifa = in_dev->ifa_list) != NULL) { in inetdev_destroy()
299 inet_free_ifa(ifa); in inetdev_destroy()
315 if (inet_ifa_match(a, ifa)) { in inet_addr_onlink()
316 if (!b || inet_ifa_match(b, ifa)) { in inet_addr_onlink()
330 struct in_ifaddr *ifa, *ifa1 = *ifap; in __inet_del_ifa() local
347 while ((ifa = *ifap1) != NULL) { in __inet_del_ifa()
348 if (!(ifa->ifa_flags & IFA_F_SECONDARY) && in __inet_del_ifa()
349 ifa1->ifa_scope <= ifa->ifa_scope) in __inet_del_ifa()
350 last_prim = ifa; in __inet_del_ifa()
352 if (!(ifa->ifa_flags & IFA_F_SECONDARY) || in __inet_del_ifa()
353 ifa1->ifa_mask != ifa->ifa_mask || in __inet_del_ifa()
354 !inet_ifa_match(ifa1->ifa_address, ifa)) { in __inet_del_ifa()
355 ifap1 = &ifa->ifa_next; in __inet_del_ifa()
356 prev_prom = ifa; in __inet_del_ifa()
361 inet_hash_remove(ifa); in __inet_del_ifa()
362 *ifap1 = ifa->ifa_next; in __inet_del_ifa()
364 rtmsg_ifa(RTM_DELADDR, ifa, nlh, portid); in __inet_del_ifa()
366 NETDEV_DOWN, ifa); in __inet_del_ifa()
367 inet_free_ifa(ifa); in __inet_del_ifa()
369 promote = ifa; in __inet_del_ifa()
380 for (ifa = promote; ifa; ifa = ifa->ifa_next) { in __inet_del_ifa()
381 if (ifa1->ifa_mask == ifa->ifa_mask && in __inet_del_ifa()
382 inet_ifa_match(ifa1->ifa_address, ifa)) in __inet_del_ifa()
383 fib_del_ifaddr(ifa, ifa1); in __inet_del_ifa()
418 for (ifa = next_sec; ifa; ifa = ifa->ifa_next) { in __inet_del_ifa()
419 if (ifa1->ifa_mask != ifa->ifa_mask || in __inet_del_ifa()
420 !inet_ifa_match(ifa1->ifa_address, ifa)) in __inet_del_ifa()
422 fib_add_ifaddr(ifa); in __inet_del_ifa()
440 static int __inet_insert_ifa(struct in_ifaddr *ifa, struct nlmsghdr *nlh, in __inet_insert_ifa() argument
443 struct in_device *in_dev = ifa->ifa_dev; in __inet_insert_ifa()
448 if (!ifa->ifa_local) { in __inet_insert_ifa()
449 inet_free_ifa(ifa); in __inet_insert_ifa()
453 ifa->ifa_flags &= ~IFA_F_SECONDARY; in __inet_insert_ifa()
459 ifa->ifa_scope <= ifa1->ifa_scope) in __inet_insert_ifa()
461 if (ifa1->ifa_mask == ifa->ifa_mask && in __inet_insert_ifa()
462 inet_ifa_match(ifa1->ifa_address, ifa)) { in __inet_insert_ifa()
463 if (ifa1->ifa_local == ifa->ifa_local) { in __inet_insert_ifa()
464 inet_free_ifa(ifa); in __inet_insert_ifa()
467 if (ifa1->ifa_scope != ifa->ifa_scope) { in __inet_insert_ifa()
468 inet_free_ifa(ifa); in __inet_insert_ifa()
471 ifa->ifa_flags |= IFA_F_SECONDARY; in __inet_insert_ifa()
475 if (!(ifa->ifa_flags & IFA_F_SECONDARY)) { in __inet_insert_ifa()
476 prandom_seed((__force u32) ifa->ifa_local); in __inet_insert_ifa()
480 ifa->ifa_next = *ifap; in __inet_insert_ifa()
481 *ifap = ifa; in __inet_insert_ifa()
483 inet_hash_insert(dev_net(in_dev->dev), ifa); in __inet_insert_ifa()
491 rtmsg_ifa(RTM_NEWADDR, ifa, nlh, portid); in __inet_insert_ifa()
492 blocking_notifier_call_chain(&inetaddr_chain, NETDEV_UP, ifa); in __inet_insert_ifa()
497 static int inet_insert_ifa(struct in_ifaddr *ifa) in inet_insert_ifa() argument
499 return __inet_insert_ifa(ifa, NULL, 0); in inet_insert_ifa()
502 static int inet_set_ifa(struct net_device *dev, struct in_ifaddr *ifa) in inet_set_ifa() argument
509 inet_free_ifa(ifa); in inet_set_ifa()
514 if (ifa->ifa_dev != in_dev) { in inet_set_ifa()
515 WARN_ON(ifa->ifa_dev); in inet_set_ifa()
517 ifa->ifa_dev = in_dev; in inet_set_ifa()
519 if (ipv4_is_loopback(ifa->ifa_local)) in inet_set_ifa()
520 ifa->ifa_scope = RT_SCOPE_HOST; in inet_set_ifa()
521 return inet_insert_ifa(ifa); in inet_set_ifa()
549 if (ifa->ifa_mask == mask && inet_ifa_match(prefix, ifa)) in inet_ifa_byprefix()
550 return ifa; in inet_ifa_byprefix()
561 struct in_ifaddr *ifa, **ifap; in inet_rtm_deladdr() local
577 for (ifap = &in_dev->ifa_list; (ifa = *ifap) != NULL; in inet_rtm_deladdr()
578 ifap = &ifa->ifa_next) { in inet_rtm_deladdr()
580 ifa->ifa_local != nla_get_be32(tb[IFA_LOCAL])) in inet_rtm_deladdr()
583 if (tb[IFA_LABEL] && nla_strcmp(tb[IFA_LABEL], ifa->ifa_label)) in inet_rtm_deladdr()
587 (ifm->ifa_prefixlen != ifa->ifa_prefixlen || in inet_rtm_deladdr()
588 !inet_ifa_match(nla_get_be32(tb[IFA_ADDRESS]), ifa))) in inet_rtm_deladdr()
605 struct in_ifaddr *ifa; in check_lifetime() local
616 hlist_for_each_entry_rcu(ifa, &inet_addr_lst[i], hash) { in check_lifetime()
619 if (ifa->ifa_flags & IFA_F_PERMANENT) in check_lifetime()
623 age = (now - ifa->ifa_tstamp + in check_lifetime()
626 if (ifa->ifa_valid_lft != INFINITY_LIFE_TIME && in check_lifetime()
627 age >= ifa->ifa_valid_lft) { in check_lifetime()
629 } else if (ifa->ifa_preferred_lft == in check_lifetime()
632 } else if (age >= ifa->ifa_preferred_lft) { in check_lifetime()
633 if (time_before(ifa->ifa_tstamp + in check_lifetime()
634 ifa->ifa_valid_lft * HZ, next)) in check_lifetime()
635 next = ifa->ifa_tstamp + in check_lifetime()
636 ifa->ifa_valid_lft * HZ; in check_lifetime()
638 if (!(ifa->ifa_flags & IFA_F_DEPRECATED)) in check_lifetime()
640 } else if (time_before(ifa->ifa_tstamp + in check_lifetime()
641 ifa->ifa_preferred_lft * HZ, in check_lifetime()
643 next = ifa->ifa_tstamp + in check_lifetime()
644 ifa->ifa_preferred_lft * HZ; in check_lifetime()
651 hlist_for_each_entry_safe(ifa, n, &inet_addr_lst[i], hash) { in check_lifetime()
654 if (ifa->ifa_flags & IFA_F_PERMANENT) in check_lifetime()
658 age = (now - ifa->ifa_tstamp + in check_lifetime()
661 if (ifa->ifa_valid_lft != INFINITY_LIFE_TIME && in check_lifetime()
662 age >= ifa->ifa_valid_lft) { in check_lifetime()
665 for (ifap = &ifa->ifa_dev->ifa_list; in check_lifetime()
667 if (*ifap == ifa) { in check_lifetime()
668 inet_del_ifa(ifa->ifa_dev, in check_lifetime()
673 } else if (ifa->ifa_preferred_lft != in check_lifetime()
675 age >= ifa->ifa_preferred_lft && in check_lifetime()
676 !(ifa->ifa_flags & IFA_F_DEPRECATED)) { in check_lifetime()
677 ifa->ifa_flags |= IFA_F_DEPRECATED; in check_lifetime()
678 rtmsg_ifa(RTM_NEWADDR, ifa, NULL, 0); in check_lifetime()
700 static void set_ifa_lifetime(struct in_ifaddr *ifa, __u32 valid_lft, in set_ifa_lifetime() argument
705 ifa->ifa_flags &= ~(IFA_F_PERMANENT | IFA_F_DEPRECATED); in set_ifa_lifetime()
709 ifa->ifa_valid_lft = timeout; in set_ifa_lifetime()
711 ifa->ifa_flags |= IFA_F_PERMANENT; in set_ifa_lifetime()
716 ifa->ifa_flags |= IFA_F_DEPRECATED; in set_ifa_lifetime()
717 ifa->ifa_preferred_lft = timeout; in set_ifa_lifetime()
719 ifa->ifa_tstamp = jiffies; in set_ifa_lifetime()
720 if (!ifa->ifa_cstamp) in set_ifa_lifetime()
721 ifa->ifa_cstamp = ifa->ifa_tstamp; in set_ifa_lifetime()
728 struct in_ifaddr *ifa; in rtm_to_ifaddr() local
753 ifa = inet_alloc_ifa(); in rtm_to_ifaddr()
754 if (ifa == NULL) in rtm_to_ifaddr()
768 INIT_HLIST_NODE(&ifa->hash); in rtm_to_ifaddr()
769 ifa->ifa_prefixlen = ifm->ifa_prefixlen; in rtm_to_ifaddr()
770 ifa->ifa_mask = inet_make_mask(ifm->ifa_prefixlen); in rtm_to_ifaddr()
771 ifa->ifa_flags = tb[IFA_FLAGS] ? nla_get_u32(tb[IFA_FLAGS]) : in rtm_to_ifaddr()
773 ifa->ifa_scope = ifm->ifa_scope; in rtm_to_ifaddr()
774 ifa->ifa_dev = in_dev; in rtm_to_ifaddr()
776 ifa->ifa_local = nla_get_be32(tb[IFA_LOCAL]); in rtm_to_ifaddr()
777 ifa->ifa_address = nla_get_be32(tb[IFA_ADDRESS]); in rtm_to_ifaddr()
780 ifa->ifa_broadcast = nla_get_be32(tb[IFA_BROADCAST]); in rtm_to_ifaddr()
783 nla_strlcpy(ifa->ifa_label, tb[IFA_LABEL], IFNAMSIZ); in rtm_to_ifaddr()
785 memcpy(ifa->ifa_label, dev->name, IFNAMSIZ); in rtm_to_ifaddr()
799 return ifa; in rtm_to_ifaddr()
802 inet_free_ifa(ifa); in rtm_to_ifaddr()
807 static struct in_ifaddr *find_matching_ifa(struct in_ifaddr *ifa) in find_matching_ifa() argument
809 struct in_device *in_dev = ifa->ifa_dev; in find_matching_ifa()
812 if (!ifa->ifa_local) in find_matching_ifa()
817 if (ifa1->ifa_mask == ifa->ifa_mask && in find_matching_ifa()
818 inet_ifa_match(ifa1->ifa_address, ifa) && in find_matching_ifa()
819 ifa1->ifa_local == ifa->ifa_local) in find_matching_ifa()
828 struct in_ifaddr *ifa; in inet_rtm_newaddr() local
835 ifa = rtm_to_ifaddr(net, nlh, &valid_lft, &prefered_lft); in inet_rtm_newaddr()
836 if (IS_ERR(ifa)) in inet_rtm_newaddr()
837 return PTR_ERR(ifa); in inet_rtm_newaddr()
839 ifa_existing = find_matching_ifa(ifa); in inet_rtm_newaddr()
844 set_ifa_lifetime(ifa, valid_lft, prefered_lft); in inet_rtm_newaddr()
845 return __inet_insert_ifa(ifa, nlh, NETLINK_CB(skb).portid); in inet_rtm_newaddr()
847 inet_free_ifa(ifa); in inet_rtm_newaddr()
852 ifa = ifa_existing; in inet_rtm_newaddr()
853 set_ifa_lifetime(ifa, valid_lft, prefered_lft); in inet_rtm_newaddr()
857 rtmsg_ifa(RTM_NEWADDR, ifa, nlh, NETLINK_CB(skb).portid); in inet_rtm_newaddr()
858 blocking_notifier_call_chain(&inetaddr_chain, NETDEV_UP, ifa); in inet_rtm_newaddr()
895 struct in_ifaddr *ifa = NULL; in devinet_ioctl() local
971 for (ifap = &in_dev->ifa_list; (ifa = *ifap) != NULL; in devinet_ioctl()
972 ifap = &ifa->ifa_next) { in devinet_ioctl()
973 if (!strcmp(ifr.ifr_name, ifa->ifa_label) && in devinet_ioctl()
975 ifa->ifa_local) { in devinet_ioctl()
983 if (!ifa) { in devinet_ioctl()
984 for (ifap = &in_dev->ifa_list; (ifa = *ifap) != NULL; in devinet_ioctl()
985 ifap = &ifa->ifa_next) in devinet_ioctl()
986 if (!strcmp(ifr.ifr_name, ifa->ifa_label)) in devinet_ioctl()
992 if (!ifa && cmd != SIOCSIFADDR && cmd != SIOCSIFFLAGS) in devinet_ioctl()
997 sin->sin_addr.s_addr = ifa->ifa_local; in devinet_ioctl()
1001 sin->sin_addr.s_addr = ifa->ifa_broadcast; in devinet_ioctl()
1005 sin->sin_addr.s_addr = ifa->ifa_address; in devinet_ioctl()
1009 sin->sin_addr.s_addr = ifa->ifa_mask; in devinet_ioctl()
1015 if (!ifa) in devinet_ioctl()
1030 if (!ifa) { in devinet_ioctl()
1032 ifa = inet_alloc_ifa(); in devinet_ioctl()
1033 if (!ifa) in devinet_ioctl()
1035 INIT_HLIST_NODE(&ifa->hash); in devinet_ioctl()
1037 memcpy(ifa->ifa_label, ifr.ifr_name, IFNAMSIZ); in devinet_ioctl()
1039 memcpy(ifa->ifa_label, dev->name, IFNAMSIZ); in devinet_ioctl()
1042 if (ifa->ifa_local == sin->sin_addr.s_addr) in devinet_ioctl()
1045 ifa->ifa_broadcast = 0; in devinet_ioctl()
1046 ifa->ifa_scope = 0; in devinet_ioctl()
1049 ifa->ifa_address = ifa->ifa_local = sin->sin_addr.s_addr; in devinet_ioctl()
1052 ifa->ifa_prefixlen = inet_abc_len(ifa->ifa_address); in devinet_ioctl()
1053 ifa->ifa_mask = inet_make_mask(ifa->ifa_prefixlen); in devinet_ioctl()
1055 ifa->ifa_prefixlen < 31) in devinet_ioctl()
1056 ifa->ifa_broadcast = ifa->ifa_address | in devinet_ioctl()
1057 ~ifa->ifa_mask; in devinet_ioctl()
1059 ifa->ifa_prefixlen = 32; in devinet_ioctl()
1060 ifa->ifa_mask = inet_make_mask(32); in devinet_ioctl()
1062 set_ifa_lifetime(ifa, INFINITY_LIFE_TIME, INFINITY_LIFE_TIME); in devinet_ioctl()
1063 ret = inet_set_ifa(dev, ifa); in devinet_ioctl()
1068 if (ifa->ifa_broadcast != sin->sin_addr.s_addr) { in devinet_ioctl()
1070 ifa->ifa_broadcast = sin->sin_addr.s_addr; in devinet_ioctl()
1071 inet_insert_ifa(ifa); in devinet_ioctl()
1077 if (ifa->ifa_address == sin->sin_addr.s_addr) in devinet_ioctl()
1084 ifa->ifa_address = sin->sin_addr.s_addr; in devinet_ioctl()
1085 inet_insert_ifa(ifa); in devinet_ioctl()
1097 if (ifa->ifa_mask != sin->sin_addr.s_addr) { in devinet_ioctl()
1098 __be32 old_mask = ifa->ifa_mask; in devinet_ioctl()
1100 ifa->ifa_mask = sin->sin_addr.s_addr; in devinet_ioctl()
1101 ifa->ifa_prefixlen = inet_mask_len(ifa->ifa_mask); in devinet_ioctl()
1110 (ifa->ifa_prefixlen < 31) && in devinet_ioctl()
1111 (ifa->ifa_broadcast == in devinet_ioctl()
1112 (ifa->ifa_local|~old_mask))) { in devinet_ioctl()
1113 ifa->ifa_broadcast = (ifa->ifa_local | in devinet_ioctl()
1116 inet_insert_ifa(ifa); in devinet_ioctl()
1133 struct in_ifaddr *ifa; in inet_gifconf() local
1140 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) { in inet_gifconf()
1148 strcpy(ifr.ifr_name, ifa->ifa_label); in inet_gifconf()
1152 ifa->ifa_local; in inet_gifconf()
1178 if (ifa->ifa_scope > scope) in inet_select_addr()
1180 if (!dst || inet_ifa_match(dst, ifa)) { in inet_select_addr()
1181 addr = ifa->ifa_local; in inet_select_addr()
1185 addr = ifa->ifa_local; in inet_select_addr()
1202 if (ifa->ifa_scope != RT_SCOPE_LINK && in inet_select_addr()
1203 ifa->ifa_scope <= scope) { in inet_select_addr()
1204 addr = ifa->ifa_local; in inet_select_addr()
1223 (local == ifa->ifa_local || !local) && in confirm_addr_indev()
1224 ifa->ifa_scope <= scope) { in confirm_addr_indev()
1225 addr = ifa->ifa_local; in confirm_addr_indev()
1230 same = (!local || inet_ifa_match(local, ifa)) && in confirm_addr_indev()
1231 (!dst || inet_ifa_match(dst, ifa)); in confirm_addr_indev()
1236 if (inet_ifa_match(addr, ifa)) in confirm_addr_indev()
1239 if (ifa->ifa_scope <= scope) { in confirm_addr_indev()
1240 addr = ifa->ifa_local; in confirm_addr_indev()
1305 struct in_ifaddr *ifa; in inetdev_changename() local
1308 for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) { in inetdev_changename()
1311 memcpy(old, ifa->ifa_label, IFNAMSIZ); in inetdev_changename()
1312 memcpy(ifa->ifa_label, dev->name, IFNAMSIZ); in inetdev_changename()
1321 strcat(ifa->ifa_label, dot); in inetdev_changename()
1323 strcpy(ifa->ifa_label + (IFNAMSIZ - strlen(dot) - 1), dot); in inetdev_changename()
1325 rtmsg_ifa(RTM_NEWADDR, ifa, NULL, 0); in inetdev_changename()
1338 struct in_ifaddr *ifa; in inetdev_send_gratuitous_arp() local
1340 for (ifa = in_dev->ifa_list; ifa; in inetdev_send_gratuitous_arp()
1341 ifa = ifa->ifa_next) { in inetdev_send_gratuitous_arp()
1343 ifa->ifa_local, dev, in inetdev_send_gratuitous_arp()
1344 ifa->ifa_local, NULL, in inetdev_send_gratuitous_arp()
1385 struct in_ifaddr *ifa = inet_alloc_ifa(); in inetdev_event() local
1387 if (ifa) { in inetdev_event()
1388 INIT_HLIST_NODE(&ifa->hash); in inetdev_event()
1389 ifa->ifa_local = in inetdev_event()
1390 ifa->ifa_address = htonl(INADDR_LOOPBACK); in inetdev_event()
1391 ifa->ifa_prefixlen = 8; in inetdev_event()
1392 ifa->ifa_mask = inet_make_mask(8); in inetdev_event()
1394 ifa->ifa_dev = in_dev; in inetdev_event()
1395 ifa->ifa_scope = RT_SCOPE_HOST; in inetdev_event()
1396 memcpy(ifa->ifa_label, dev->name, IFNAMSIZ); in inetdev_event()
1397 set_ifa_lifetime(ifa, INFINITY_LIFE_TIME, in inetdev_event()
1401 inet_insert_ifa(ifa); in inetdev_event()
1477 static int inet_fill_ifaddr(struct sk_buff *skb, struct in_ifaddr *ifa, in inet_fill_ifaddr() argument
1490 ifm->ifa_prefixlen = ifa->ifa_prefixlen; in inet_fill_ifaddr()
1491 ifm->ifa_flags = ifa->ifa_flags; in inet_fill_ifaddr()
1492 ifm->ifa_scope = ifa->ifa_scope; in inet_fill_ifaddr()
1493 ifm->ifa_index = ifa->ifa_dev->dev->ifindex; in inet_fill_ifaddr()
1496 preferred = ifa->ifa_preferred_lft; in inet_fill_ifaddr()
1497 valid = ifa->ifa_valid_lft; in inet_fill_ifaddr()
1499 long tval = (jiffies - ifa->ifa_tstamp) / HZ; in inet_fill_ifaddr()
1516 if ((ifa->ifa_address && in inet_fill_ifaddr()
1517 nla_put_be32(skb, IFA_ADDRESS, ifa->ifa_address)) || in inet_fill_ifaddr()
1518 (ifa->ifa_local && in inet_fill_ifaddr()
1519 nla_put_be32(skb, IFA_LOCAL, ifa->ifa_local)) || in inet_fill_ifaddr()
1520 (ifa->ifa_broadcast && in inet_fill_ifaddr()
1521 nla_put_be32(skb, IFA_BROADCAST, ifa->ifa_broadcast)) || in inet_fill_ifaddr()
1522 (ifa->ifa_label[0] && in inet_fill_ifaddr()
1523 nla_put_string(skb, IFA_LABEL, ifa->ifa_label)) || in inet_fill_ifaddr()
1524 nla_put_u32(skb, IFA_FLAGS, ifa->ifa_flags) || in inet_fill_ifaddr()
1525 put_cacheinfo(skb, ifa->ifa_cstamp, ifa->ifa_tstamp, in inet_fill_ifaddr()
1544 struct in_ifaddr *ifa; in inet_dump_ifaddr() local
1566 for (ifa = in_dev->ifa_list, ip_idx = 0; ifa; in inet_dump_ifaddr()
1567 ifa = ifa->ifa_next, ip_idx++) { in inet_dump_ifaddr()
1570 if (inet_fill_ifaddr(skb, ifa, in inet_dump_ifaddr()
1593 static void rtmsg_ifa(int event, struct in_ifaddr *ifa, struct nlmsghdr *nlh, in rtmsg_ifa() argument
1601 net = dev_net(ifa->ifa_dev->dev); in rtmsg_ifa()
1606 err = inet_fill_ifaddr(skb, ifa, portid, seq, event, 0); in rtmsg_ifa()