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nd6_rtr.c (120727) nd6_rtr.c (120856)
1/* $FreeBSD: head/sys/netinet6/nd6_rtr.c 120727 2003-10-04 03:44:50Z sam $ */
1/* $FreeBSD: head/sys/netinet6/nd6_rtr.c 120856 2003-10-06 14:02:09Z ume $ */
2/* $KAME: nd6_rtr.c,v 1.111 2001/04/27 01:37:15 jinmei Exp $ */
3
4/*
5 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions

--- 535 unchanged lines hidden (view full) ---

545 struct in6_addr *addr;
546 struct ifnet *ifp;
547{
548 struct nd_defrouter *dr;
549
550 for (dr = TAILQ_FIRST(&nd_defrouter); dr;
551 dr = TAILQ_NEXT(dr, dr_entry)) {
552 if (dr->ifp == ifp && IN6_ARE_ADDR_EQUAL(addr, &dr->rtaddr))
2/* $KAME: nd6_rtr.c,v 1.111 2001/04/27 01:37:15 jinmei Exp $ */
3
4/*
5 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions

--- 535 unchanged lines hidden (view full) ---

545 struct in6_addr *addr;
546 struct ifnet *ifp;
547{
548 struct nd_defrouter *dr;
549
550 for (dr = TAILQ_FIRST(&nd_defrouter); dr;
551 dr = TAILQ_NEXT(dr, dr_entry)) {
552 if (dr->ifp == ifp && IN6_ARE_ADDR_EQUAL(addr, &dr->rtaddr))
553 return(dr);
553 return (dr);
554 }
555
554 }
555
556 return(NULL); /* search failed */
556 return (NULL); /* search failed */
557}
558
559void
560defrouter_delreq(dr, dofree)
561 struct nd_defrouter *dr;
562 int dofree;
563{
564 struct sockaddr_in6 def, mask, gate;

--- 159 unchanged lines hidden (view full) ---

724 dr = NULL;
725 } else {
726 /* override */
727 dr->flags = new->flags; /* xxx flag check */
728 dr->rtlifetime = new->rtlifetime;
729 dr->expire = new->expire;
730 }
731 splx(s);
557}
558
559void
560defrouter_delreq(dr, dofree)
561 struct nd_defrouter *dr;
562 int dofree;
563{
564 struct sockaddr_in6 def, mask, gate;

--- 159 unchanged lines hidden (view full) ---

724 dr = NULL;
725 } else {
726 /* override */
727 dr->flags = new->flags; /* xxx flag check */
728 dr->rtlifetime = new->rtlifetime;
729 dr->expire = new->expire;
730 }
731 splx(s);
732 return(dr);
732 return (dr);
733 }
734
735 /* entry does not exist */
736 if (new->rtlifetime == 0) {
737 splx(s);
733 }
734
735 /* entry does not exist */
736 if (new->rtlifetime == 0) {
737 splx(s);
738 return(NULL);
738 return (NULL);
739 }
740
741 n = (struct nd_defrouter *)malloc(sizeof(*n), M_IP6NDP, M_NOWAIT);
742 if (n == NULL) {
743 splx(s);
739 }
740
741 n = (struct nd_defrouter *)malloc(sizeof(*n), M_IP6NDP, M_NOWAIT);
742 if (n == NULL) {
743 splx(s);
744 return(NULL);
744 return (NULL);
745 }
746 bzero(n, sizeof(*n));
747 *n = *new;
748
749 /*
750 * Insert the new router at the end of the Default Router List.
751 * If there is no other router, install it anyway. Otherwise,
752 * just continue to use the current default router.
753 */
754 TAILQ_INSERT_TAIL(&nd_defrouter, n, dr_entry);
755 if (TAILQ_FIRST(&nd_defrouter) == n)
756 defrouter_select();
757 splx(s);
758
745 }
746 bzero(n, sizeof(*n));
747 *n = *new;
748
749 /*
750 * Insert the new router at the end of the Default Router List.
751 * If there is no other router, install it anyway. Otherwise,
752 * just continue to use the current default router.
753 */
754 TAILQ_INSERT_TAIL(&nd_defrouter, n, dr_entry);
755 if (TAILQ_FIRST(&nd_defrouter) == n)
756 defrouter_select();
757 splx(s);
758
759 return(n);
759 return (n);
760}
761
762static struct nd_pfxrouter *
763pfxrtr_lookup(pr, dr)
764 struct nd_prefix *pr;
765 struct nd_defrouter *dr;
766{
767 struct nd_pfxrouter *search;
768
769 for (search = pr->ndpr_advrtrs.lh_first; search; search = search->pfr_next) {
770 if (search->router == dr)
771 break;
772 }
773
760}
761
762static struct nd_pfxrouter *
763pfxrtr_lookup(pr, dr)
764 struct nd_prefix *pr;
765 struct nd_defrouter *dr;
766{
767 struct nd_pfxrouter *search;
768
769 for (search = pr->ndpr_advrtrs.lh_first; search; search = search->pfr_next) {
770 if (search->router == dr)
771 break;
772 }
773
774 return(search);
774 return (search);
775}
776
777static void
778pfxrtr_add(pr, dr)
779 struct nd_prefix *pr;
780 struct nd_defrouter *dr;
781{
782 struct nd_pfxrouter *new;

--- 29 unchanged lines hidden (view full) ---

812 in6_are_prefix_equal(&pr->ndpr_prefix.sin6_addr,
813 &search->ndpr_prefix.sin6_addr,
814 pr->ndpr_plen)
815 ) {
816 break;
817 }
818 }
819
775}
776
777static void
778pfxrtr_add(pr, dr)
779 struct nd_prefix *pr;
780 struct nd_defrouter *dr;
781{
782 struct nd_pfxrouter *new;

--- 29 unchanged lines hidden (view full) ---

812 in6_are_prefix_equal(&pr->ndpr_prefix.sin6_addr,
813 &search->ndpr_prefix.sin6_addr,
814 pr->ndpr_plen)
815 ) {
816 break;
817 }
818 }
819
820 return(search);
820 return (search);
821}
822
823int
824nd6_prelist_add(pr, dr, newp)
825 struct nd_prefix *pr, **newp;
826 struct nd_defrouter *dr;
827{
828 struct nd_prefix *new = NULL;

--- 398 unchanged lines hidden (view full) ---

1227 pfxrtr = LIST_NEXT(pfxrtr, pfr_entry)) {
1228 if ((rt = nd6_lookup(&pfxrtr->router->rtaddr, 0,
1229 pfxrtr->router->ifp)) &&
1230 (ln = (struct llinfo_nd6 *)rt->rt_llinfo) &&
1231 ND6_IS_LLINFO_PROBREACH(ln))
1232 break; /* found */
1233 }
1234
821}
822
823int
824nd6_prelist_add(pr, dr, newp)
825 struct nd_prefix *pr, **newp;
826 struct nd_defrouter *dr;
827{
828 struct nd_prefix *new = NULL;

--- 398 unchanged lines hidden (view full) ---

1227 pfxrtr = LIST_NEXT(pfxrtr, pfr_entry)) {
1228 if ((rt = nd6_lookup(&pfxrtr->router->rtaddr, 0,
1229 pfxrtr->router->ifp)) &&
1230 (ln = (struct llinfo_nd6 *)rt->rt_llinfo) &&
1231 ND6_IS_LLINFO_PROBREACH(ln))
1232 break; /* found */
1233 }
1234
1235 return(pfxrtr);
1235 return (pfxrtr);
1236
1237}
1238
1239/*
1240 * Check if each prefix in the prefix list has at least one available router
1241 * that advertised the prefix (a router is "available" if its neighbor cache
1242 * entry is reachable or probably reachable).
1243 * If the check fails, the prefix may be off-link, because, for example,

--- 159 unchanged lines hidden (view full) ---

1403 int error = 0;
1404 struct rtentry *rt = NULL;
1405
1406 /* sanity check */
1407 if ((pr->ndpr_stateflags & NDPRF_ONLINK) != 0) {
1408 nd6log((LOG_ERR,
1409 "nd6_prefix_onlink: %s/%d is already on-link\n",
1410 ip6_sprintf(&pr->ndpr_prefix.sin6_addr), pr->ndpr_plen);
1236
1237}
1238
1239/*
1240 * Check if each prefix in the prefix list has at least one available router
1241 * that advertised the prefix (a router is "available" if its neighbor cache
1242 * entry is reachable or probably reachable).
1243 * If the check fails, the prefix may be off-link, because, for example,

--- 159 unchanged lines hidden (view full) ---

1403 int error = 0;
1404 struct rtentry *rt = NULL;
1405
1406 /* sanity check */
1407 if ((pr->ndpr_stateflags & NDPRF_ONLINK) != 0) {
1408 nd6log((LOG_ERR,
1409 "nd6_prefix_onlink: %s/%d is already on-link\n",
1410 ip6_sprintf(&pr->ndpr_prefix.sin6_addr), pr->ndpr_plen);
1411 return(EEXIST));
1411 return (EEXIST));
1412 }
1413
1414 /*
1415 * Add the interface route associated with the prefix. Before
1416 * installing the route, check if there's the same prefix on another
1417 * interface, and the prefix has already installed the interface route.
1418 * Although such a configuration is expected to be rare, we explicitly
1419 * allow it.

--- 4 unchanged lines hidden (view full) ---

1424
1425 if ((opr->ndpr_stateflags & NDPRF_ONLINK) == 0)
1426 continue;
1427
1428 if (opr->ndpr_plen == pr->ndpr_plen &&
1429 in6_are_prefix_equal(&pr->ndpr_prefix.sin6_addr,
1430 &opr->ndpr_prefix.sin6_addr,
1431 pr->ndpr_plen))
1412 }
1413
1414 /*
1415 * Add the interface route associated with the prefix. Before
1416 * installing the route, check if there's the same prefix on another
1417 * interface, and the prefix has already installed the interface route.
1418 * Although such a configuration is expected to be rare, we explicitly
1419 * allow it.

--- 4 unchanged lines hidden (view full) ---

1424
1425 if ((opr->ndpr_stateflags & NDPRF_ONLINK) == 0)
1426 continue;
1427
1428 if (opr->ndpr_plen == pr->ndpr_plen &&
1429 in6_are_prefix_equal(&pr->ndpr_prefix.sin6_addr,
1430 &opr->ndpr_prefix.sin6_addr,
1431 pr->ndpr_plen))
1432 return(0);
1432 return (0);
1433 }
1434
1435 /*
1436 * We prefer link-local addresses as the associated interface address.
1437 */
1438 /* search for a link-local addr */
1439 ifa = (struct ifaddr *)in6ifa_ifpforlinklocal(ifp,
1440 IN6_IFF_NOTREADY|

--- 14 unchanged lines hidden (view full) ---

1455 * after removing all IPv6 addresses on the receiving
1456 * interface. This should, of course, be rare though.
1457 */
1458 nd6log((LOG_NOTICE,
1459 "nd6_prefix_onlink: failed to find any ifaddr"
1460 " to add route for a prefix(%s/%d) on %s\n",
1461 ip6_sprintf(&pr->ndpr_prefix.sin6_addr),
1462 pr->ndpr_plen, if_name(ifp)));
1433 }
1434
1435 /*
1436 * We prefer link-local addresses as the associated interface address.
1437 */
1438 /* search for a link-local addr */
1439 ifa = (struct ifaddr *)in6ifa_ifpforlinklocal(ifp,
1440 IN6_IFF_NOTREADY|

--- 14 unchanged lines hidden (view full) ---

1455 * after removing all IPv6 addresses on the receiving
1456 * interface. This should, of course, be rare though.
1457 */
1458 nd6log((LOG_NOTICE,
1459 "nd6_prefix_onlink: failed to find any ifaddr"
1460 " to add route for a prefix(%s/%d) on %s\n",
1461 ip6_sprintf(&pr->ndpr_prefix.sin6_addr),
1462 pr->ndpr_plen, if_name(ifp)));
1463 return(0);
1463 return (0);
1464 }
1465
1466 /*
1467 * in6_ifinit() sets nd6_rtrequest to ifa_rtrequest for all ifaddrs.
1468 * ifa->ifa_rtrequest = nd6_rtrequest;
1469 */
1470 bzero(&mask6, sizeof(mask6));
1471 mask6.sin6_len = sizeof(mask6);

--- 27 unchanged lines hidden (view full) ---

1499 }
1500
1501 if (rt != NULL) {
1502 RT_LOCK(rt);
1503 rt->rt_refcnt--;
1504 RT_UNLOCK(rt);
1505 }
1506
1464 }
1465
1466 /*
1467 * in6_ifinit() sets nd6_rtrequest to ifa_rtrequest for all ifaddrs.
1468 * ifa->ifa_rtrequest = nd6_rtrequest;
1469 */
1470 bzero(&mask6, sizeof(mask6));
1471 mask6.sin6_len = sizeof(mask6);

--- 27 unchanged lines hidden (view full) ---

1499 }
1500
1501 if (rt != NULL) {
1502 RT_LOCK(rt);
1503 rt->rt_refcnt--;
1504 RT_UNLOCK(rt);
1505 }
1506
1507 return(error);
1507 return (error);
1508}
1509
1510int
1511nd6_prefix_offlink(pr)
1512 struct nd_prefix *pr;
1513{
1514 int error = 0;
1515 struct ifnet *ifp = pr->ndpr_ifp;
1516 struct nd_prefix *opr;
1517 struct sockaddr_in6 sa6, mask6;
1518 struct rtentry *rt = NULL;
1519
1520 /* sanity check */
1521 if ((pr->ndpr_stateflags & NDPRF_ONLINK) == 0) {
1522 nd6log((LOG_ERR,
1523 "nd6_prefix_offlink: %s/%d is already off-link\n",
1524 ip6_sprintf(&pr->ndpr_prefix.sin6_addr), pr->ndpr_plen));
1508}
1509
1510int
1511nd6_prefix_offlink(pr)
1512 struct nd_prefix *pr;
1513{
1514 int error = 0;
1515 struct ifnet *ifp = pr->ndpr_ifp;
1516 struct nd_prefix *opr;
1517 struct sockaddr_in6 sa6, mask6;
1518 struct rtentry *rt = NULL;
1519
1520 /* sanity check */
1521 if ((pr->ndpr_stateflags & NDPRF_ONLINK) == 0) {
1522 nd6log((LOG_ERR,
1523 "nd6_prefix_offlink: %s/%d is already off-link\n",
1524 ip6_sprintf(&pr->ndpr_prefix.sin6_addr), pr->ndpr_plen));
1525 return(EEXIST);
1525 return (EEXIST);
1526 }
1527
1528 bzero(&sa6, sizeof(sa6));
1529 sa6.sin6_family = AF_INET6;
1530 sa6.sin6_len = sizeof(sa6);
1531 bcopy(&pr->ndpr_prefix.sin6_addr, &sa6.sin6_addr,
1532 sizeof(struct in6_addr));
1533 bzero(&mask6, sizeof(mask6));

--- 55 unchanged lines hidden (view full) ---

1589 "%s/%d on %s (errno = %d)\n",
1590 ip6_sprintf(&sa6.sin6_addr), pr->ndpr_plen, if_name(ifp),
1591 error));
1592 }
1593
1594 if (rt != NULL)
1595 RTFREE(rt);
1596
1526 }
1527
1528 bzero(&sa6, sizeof(sa6));
1529 sa6.sin6_family = AF_INET6;
1530 sa6.sin6_len = sizeof(sa6);
1531 bcopy(&pr->ndpr_prefix.sin6_addr, &sa6.sin6_addr,
1532 sizeof(struct in6_addr));
1533 bzero(&mask6, sizeof(mask6));

--- 55 unchanged lines hidden (view full) ---

1589 "%s/%d on %s (errno = %d)\n",
1590 ip6_sprintf(&sa6.sin6_addr), pr->ndpr_plen, if_name(ifp),
1591 error));
1592 }
1593
1594 if (rt != NULL)
1595 RTFREE(rt);
1596
1597 return(error);
1597 return (error);
1598}
1599
1600static struct in6_ifaddr *
1601in6_ifadd(pr, ifid)
1602 struct nd_prefix *pr;
1603 struct in6_addr *ifid; /* Mobile IPv6 addition */
1604{
1605 struct ifnet *ifp = pr->ndpr_ifp;

--- 115 unchanged lines hidden (view full) ---

1721 pr->ndpr_addr = ifra.ifra_addr.sin6_addr;
1722
1723 /* allocate ifaddr structure, link into chain, etc. */
1724 if ((error = in6_update_ifa(ifp, &ifra, NULL)) != 0) {
1725 nd6log((LOG_ERR,
1726 "in6_ifadd: failed to make ifaddr %s on %s (errno=%d)\n",
1727 ip6_sprintf(&ifra.ifra_addr.sin6_addr), if_name(ifp),
1728 error));
1598}
1599
1600static struct in6_ifaddr *
1601in6_ifadd(pr, ifid)
1602 struct nd_prefix *pr;
1603 struct in6_addr *ifid; /* Mobile IPv6 addition */
1604{
1605 struct ifnet *ifp = pr->ndpr_ifp;

--- 115 unchanged lines hidden (view full) ---

1721 pr->ndpr_addr = ifra.ifra_addr.sin6_addr;
1722
1723 /* allocate ifaddr structure, link into chain, etc. */
1724 if ((error = in6_update_ifa(ifp, &ifra, NULL)) != 0) {
1725 nd6log((LOG_ERR,
1726 "in6_ifadd: failed to make ifaddr %s on %s (errno=%d)\n",
1727 ip6_sprintf(&ifra.ifra_addr.sin6_addr), if_name(ifp),
1728 error));
1729 return(NULL); /* ifaddr must not have been allocated. */
1729 return (NULL); /* ifaddr must not have been allocated. */
1730 }
1731
1732 ia = in6ifa_ifpwithaddr(ifp, &ifra.ifra_addr.sin6_addr);
1733
1730 }
1731
1732 ia = in6ifa_ifpwithaddr(ifp, &ifra.ifra_addr.sin6_addr);
1733
1734 return(ia); /* this must NOT be NULL. */
1734 return (ia); /* this must NOT be NULL. */
1735}
1736
1737int
1738in6_tmpifadd(ia0, forcegen)
1739 const struct in6_ifaddr *ia0; /* corresponding public address */
1740 int forcegen;
1741{
1742 struct ifnet *ifp = ia0->ia_ifa.ifa_ifp;

--- 29 unchanged lines hidden (view full) ---

1772 * already assigned to the interface, generate a new randomized
1773 * interface identifier and repeat this step.
1774 * RFC 3041 3.3 (4).
1775 */
1776 if (in6ifa_ifpwithaddr(ifp, &ifra.ifra_addr.sin6_addr) != NULL) {
1777 if (trylimit-- == 0) {
1778 nd6log((LOG_NOTICE, "in6_tmpifadd: failed to find "
1779 "a unique random IFID\n"));
1735}
1736
1737int
1738in6_tmpifadd(ia0, forcegen)
1739 const struct in6_ifaddr *ia0; /* corresponding public address */
1740 int forcegen;
1741{
1742 struct ifnet *ifp = ia0->ia_ifa.ifa_ifp;

--- 29 unchanged lines hidden (view full) ---

1772 * already assigned to the interface, generate a new randomized
1773 * interface identifier and repeat this step.
1774 * RFC 3041 3.3 (4).
1775 */
1776 if (in6ifa_ifpwithaddr(ifp, &ifra.ifra_addr.sin6_addr) != NULL) {
1777 if (trylimit-- == 0) {
1778 nd6log((LOG_NOTICE, "in6_tmpifadd: failed to find "
1779 "a unique random IFID\n"));
1780 return(EEXIST);
1780 return (EEXIST);
1781 }
1782 forcegen = 1;
1783 goto again;
1784 }
1785
1786 /*
1787 * The Valid Lifetime is the lower of the Valid Lifetime of the
1788 * public address or TEMP_VALID_LIFETIME.

--- 20 unchanged lines hidden (view full) ---

1809 ifra.ifra_lifetime.ia6t_vltime = vltime0;
1810 ifra.ifra_lifetime.ia6t_pltime = pltime0;
1811
1812 /*
1813 * A temporary address is created only if this calculated Preferred
1814 * Lifetime is greater than REGEN_ADVANCE time units.
1815 */
1816 if (ifra.ifra_lifetime.ia6t_pltime <= ip6_temp_regen_advance)
1781 }
1782 forcegen = 1;
1783 goto again;
1784 }
1785
1786 /*
1787 * The Valid Lifetime is the lower of the Valid Lifetime of the
1788 * public address or TEMP_VALID_LIFETIME.

--- 20 unchanged lines hidden (view full) ---

1809 ifra.ifra_lifetime.ia6t_vltime = vltime0;
1810 ifra.ifra_lifetime.ia6t_pltime = pltime0;
1811
1812 /*
1813 * A temporary address is created only if this calculated Preferred
1814 * Lifetime is greater than REGEN_ADVANCE time units.
1815 */
1816 if (ifra.ifra_lifetime.ia6t_pltime <= ip6_temp_regen_advance)
1817 return(0);
1817 return (0);
1818
1819 /* XXX: scope zone ID? */
1820
1821 ifra.ifra_flags |= (IN6_IFF_AUTOCONF|IN6_IFF_TEMPORARY);
1822
1823 /* allocate ifaddr structure, link into chain, etc. */
1824 if ((error = in6_update_ifa(ifp, &ifra, NULL)) != 0)
1818
1819 /* XXX: scope zone ID? */
1820
1821 ifra.ifra_flags |= (IN6_IFF_AUTOCONF|IN6_IFF_TEMPORARY);
1822
1823 /* allocate ifaddr structure, link into chain, etc. */
1824 if ((error = in6_update_ifa(ifp, &ifra, NULL)) != 0)
1825 return(error);
1825 return (error);
1826
1827 newia = in6ifa_ifpwithaddr(ifp, &ifra.ifra_addr.sin6_addr);
1828 if (newia == NULL) { /* XXX: can it happen? */
1829 nd6log((LOG_ERR,
1830 "in6_tmpifadd: ifa update succeeded, but we got "
1831 "no ifaddr\n"));
1826
1827 newia = in6ifa_ifpwithaddr(ifp, &ifra.ifra_addr.sin6_addr);
1828 if (newia == NULL) { /* XXX: can it happen? */
1829 nd6log((LOG_ERR,
1830 "in6_tmpifadd: ifa update succeeded, but we got "
1831 "no ifaddr\n"));
1832 return(EINVAL); /* XXX */
1832 return (EINVAL); /* XXX */
1833 }
1834 newia->ia6_ndpr = ia0->ia6_ndpr;
1835 newia->ia6_ndpr->ndpr_refcnt++;
1836
1837 /*
1838 * A newly added address might affect the status of other addresses.
1839 * XXX: when the temporary address is generated with a new public
1840 * address, the onlink check is redundant. However, it would be safe
1841 * to do the check explicitly everywhere a new address is generated,
1842 * and, in fact, we surely need the check when we create a new
1843 * temporary address due to deprecation of an old temporary address.
1844 */
1845 pfxlist_onlink_check();
1846
1833 }
1834 newia->ia6_ndpr = ia0->ia6_ndpr;
1835 newia->ia6_ndpr->ndpr_refcnt++;
1836
1837 /*
1838 * A newly added address might affect the status of other addresses.
1839 * XXX: when the temporary address is generated with a new public
1840 * address, the onlink check is redundant. However, it would be safe
1841 * to do the check explicitly everywhere a new address is generated,
1842 * and, in fact, we surely need the check when we create a new
1843 * temporary address due to deprecation of an old temporary address.
1844 */
1845 pfxlist_onlink_check();
1846
1847 return(0);
1847 return (0);
1848}
1849
1850int
1851in6_init_prefix_ltimes(struct nd_prefix *ndpr)
1852{
1853 /* check if preferred lifetime > valid lifetime. RFC2462 5.5.3 (c) */
1854 if (ndpr->ndpr_pltime > ndpr->ndpr_vltime) {
1855 nd6log((LOG_INFO, "in6_init_prefix_ltimes: preferred lifetime"

--- 65 unchanged lines hidden (view full) ---

1921 struct radix_node *rn;
1922 void *arg;
1923{
1924#define SIN6(s) ((struct sockaddr_in6 *)s)
1925 struct rtentry *rt = (struct rtentry *)rn;
1926 struct in6_addr *gate = (struct in6_addr *)arg;
1927
1928 if (rt->rt_gateway == NULL || rt->rt_gateway->sa_family != AF_INET6)
1848}
1849
1850int
1851in6_init_prefix_ltimes(struct nd_prefix *ndpr)
1852{
1853 /* check if preferred lifetime > valid lifetime. RFC2462 5.5.3 (c) */
1854 if (ndpr->ndpr_pltime > ndpr->ndpr_vltime) {
1855 nd6log((LOG_INFO, "in6_init_prefix_ltimes: preferred lifetime"

--- 65 unchanged lines hidden (view full) ---

1921 struct radix_node *rn;
1922 void *arg;
1923{
1924#define SIN6(s) ((struct sockaddr_in6 *)s)
1925 struct rtentry *rt = (struct rtentry *)rn;
1926 struct in6_addr *gate = (struct in6_addr *)arg;
1927
1928 if (rt->rt_gateway == NULL || rt->rt_gateway->sa_family != AF_INET6)
1929 return(0);
1929 return (0);
1930
1931 if (!IN6_ARE_ADDR_EQUAL(gate, &SIN6(rt->rt_gateway)->sin6_addr))
1930
1931 if (!IN6_ARE_ADDR_EQUAL(gate, &SIN6(rt->rt_gateway)->sin6_addr))
1932 return(0);
1932 return (0);
1933
1934 /*
1935 * Do not delete a static route.
1936 * XXX: this seems to be a bit ad-hoc. Should we consider the
1937 * 'cloned' bit instead?
1938 */
1939 if ((rt->rt_flags & RTF_STATIC) != 0)
1933
1934 /*
1935 * Do not delete a static route.
1936 * XXX: this seems to be a bit ad-hoc. Should we consider the
1937 * 'cloned' bit instead?
1938 */
1939 if ((rt->rt_flags & RTF_STATIC) != 0)
1940 return(0);
1940 return (0);
1941
1942 /*
1943 * We delete only host route. This means, in particular, we don't
1944 * delete default route.
1945 */
1946 if ((rt->rt_flags & RTF_HOST) == 0)
1941
1942 /*
1943 * We delete only host route. This means, in particular, we don't
1944 * delete default route.
1945 */
1946 if ((rt->rt_flags & RTF_HOST) == 0)
1947 return(0);
1947 return (0);
1948
1948
1949 return(rtrequest(RTM_DELETE, rt_key(rt),
1949 return (rtrequest(RTM_DELETE, rt_key(rt),
1950 rt->rt_gateway, rt_mask(rt), rt->rt_flags, 0));
1951#undef SIN6
1952}
1953
1954int
1955nd6_setdefaultiface(ifindex)
1956 int ifindex;
1957{
1958 int error = 0;
1959
1960 if (ifindex < 0 || if_index < ifindex)
1950 rt->rt_gateway, rt_mask(rt), rt->rt_flags, 0));
1951#undef SIN6
1952}
1953
1954int
1955nd6_setdefaultiface(ifindex)
1956 int ifindex;
1957{
1958 int error = 0;
1959
1960 if (ifindex < 0 || if_index < ifindex)
1961 return(EINVAL);
1961 return (EINVAL);
1962
1963 if (nd6_defifindex != ifindex) {
1964 nd6_defifindex = ifindex;
1965 if (nd6_defifindex > 0)
1966 nd6_defifp = ifnet_byindex(nd6_defifindex);
1967 else
1968 nd6_defifp = NULL;
1969

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1981 /*
1982 * Our current implementation assumes one-to-one maping between
1983 * interfaces and links, so it would be natural to use the
1984 * default interface as the default link.
1985 */
1986 scope6_setdefault(nd6_defifp);
1987 }
1988
1962
1963 if (nd6_defifindex != ifindex) {
1964 nd6_defifindex = ifindex;
1965 if (nd6_defifindex > 0)
1966 nd6_defifp = ifnet_byindex(nd6_defifindex);
1967 else
1968 nd6_defifp = NULL;
1969

--- 11 unchanged lines hidden (view full) ---

1981 /*
1982 * Our current implementation assumes one-to-one maping between
1983 * interfaces and links, so it would be natural to use the
1984 * default interface as the default link.
1985 */
1986 scope6_setdefault(nd6_defifp);
1987 }
1988
1989 return(error);
1989 return (error);
1990}
1990}