diff options
Diffstat (limited to 'sys/netinet6/in6.c')
| -rw-r--r-- | sys/netinet6/in6.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/sys/netinet6/in6.c b/sys/netinet6/in6.c index 80359c1..9e005c5 100644 --- a/sys/netinet6/in6.c +++ b/sys/netinet6/in6.c @@ -1987,6 +1987,32 @@ in6ifa_ifpwithaddr(struct ifnet *ifp, struct in6_addr *addr) } /* + * Find a link-local scoped address on ifp and return it if any. + */ +struct in6_ifaddr * +in6ifa_llaonifp(struct ifnet *ifp) +{ + struct sockaddr_in6 *sin6; + struct ifaddr *ifa; + + if (ND_IFINFO(ifp)->flags & ND6_IFF_IFDISABLED) + return (NULL); + if_addr_rlock(ifp); + TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) { + if (ifa->ifa_addr->sa_family != AF_INET6) + continue; + sin6 = (struct sockaddr_in6 *)ifa->ifa_addr; + if (IN6_IS_SCOPE_LINKLOCAL(&sin6->sin6_addr) || + IN6_IS_ADDR_MC_INTFACELOCAL(&sin6->sin6_addr) || + IN6_IS_ADDR_MC_NODELOCAL(&sin6->sin6_addr)) + break; + } + if_addr_runlock(ifp); + + return ((struct in6_ifaddr *)ifa); +} + +/* * Convert IP6 address to printable (loggable) representation. Caller * has to make sure that ip6buf is at least INET6_ADDRSTRLEN long. */ |
