diff --git a/usr.sbin/rpcbind/tests/addrmerge_test.c b/usr.sbin/rpcbind/tests/addrmerge_test.c --- a/usr.sbin/rpcbind/tests/addrmerge_test.c +++ b/usr.sbin/rpcbind/tests/addrmerge_test.c @@ -257,6 +257,22 @@ IFF_UP | IFF_RUNNING | IFF_POINTOPOINT | IFF_MULTICAST, 0, false); } +static void +mock_mlxen0(void) +{ + mock_ifaddr4("mlxen0", "192.0.3.1", "255.255.255.128", "192.0.3.127", + IFF_UP | IFF_BROADCAST | IFF_RUNNING | IFF_SIMPLEX | IFF_MULTICAST, + false); + /* Setting link local address before ipv6 address*/ + mock_ifaddr6("mlxen0", "fe80::4", "ffff:ffff:ffff:ffff::", + "fe80::ffff:ffff:ffff:ffff", + IFF_UP | IFF_BROADCAST | IFF_RUNNING | IFF_SIMPLEX | IFF_MULTICAST, + 3, false); + mock_ifaddr6("mlxen0", "2001:db8::7", "ffff:ffff:ffff:ffff::", + "2001:db8::ffff:ffff:ffff:ffff", + IFF_UP | IFF_BROADCAST | IFF_RUNNING | IFF_SIMPLEX | IFF_MULTICAST, + 0, false); +} /* Stub rpcbind functions */ int @@ -835,6 +851,23 @@ ATF_CHECK_STREQ("2001:db8::2.3.46", maddr); free(maddr); } + +ATF_TC_WITHOUT_HEAD(addrmerge_ipv6_other_subnet); +ATF_TC_BODY(addrmerge_ipv6_other_subnet, tc) +{ + char *maddr; + + /* getifaddrs will return link local before normal ipv6 */ + mock_lo0(); + mock_mlxen0(); + + maddr = do_addrmerge6("2001:db8:1::1.3.46"); + + /* We must return the closest ipv6 address*/ + ATF_REQUIRE(maddr != NULL); + ATF_CHECK_STREQ("2001:db8::7.3.46", maddr); + free(maddr); +} #endif /* INET6 */ @@ -864,6 +897,7 @@ ATF_TP_ADD_TC(tp, addrmerge_ipv6_linklocal_rev); ATF_TP_ADD_TC(tp, addrmerge_recvdstaddr6); ATF_TP_ADD_TC(tp, addrmerge_recvdstaddr6_rev); + ATF_TP_ADD_TC(tp, addrmerge_ipv6_other_subnet); #endif return (atf_no_error()); diff --git a/usr.sbin/rpcbind/util.c b/usr.sbin/rpcbind/util.c --- a/usr.sbin/rpcbind/util.c +++ b/usr.sbin/rpcbind/util.c @@ -229,17 +229,19 @@ * a link-local address then use the scope id to see * which one. */ - if (IN6_IS_ADDR_LINKLOCAL(&SA2SIN6ADDR(ifsa)) && - IN6_IS_ADDR_LINKLOCAL(&SA2SIN6ADDR(caller_sa)) && - IN6_IS_ADDR_LINKLOCAL(&SA2SIN6ADDR(hint_sa))) { - if (SA2SIN6(ifsa)->sin6_scope_id == - SA2SIN6(caller_sa)->sin6_scope_id) { + if (IN6_IS_ADDR_LINKLOCAL(&SA2SIN6ADDR(ifsa))) { + if (IN6_IS_ADDR_LINKLOCAL(&SA2SIN6ADDR(caller_sa)) && + IN6_IS_ADDR_LINKLOCAL(&SA2SIN6ADDR(hint_sa)) && + (SA2SIN6(ifsa)->sin6_scope_id == + SA2SIN6(caller_sa)->sin6_scope_id)) { const int goodness = 3; if (bestif_goodness < goodness) { bestif = ifap; bestif_goodness = goodness; } + } else { + continue; } } }