/*
* Check for alternatives when higher level complains
* about service problems. For now, invalidate cached
* routing information. If the route was created dynamically
* (by a redirect), time to try a default gateway again.
*/
void
in6_losing(struct in6pcb *in6p)
{
struct rtentry *rt;
struct rt_addrinfo info;
if (in6p->in6p_af != AF_INET6)
return;
if ((rt = rtcache_validate(&in6p->in6p_route)) == NULL)
return;
memset(&info, 0, sizeof(info));
info.rti_info[RTAX_DST] = rtcache_getdst(&in6p->in6p_route);
info.rti_info[RTAX_GATEWAY] = rt->rt_gateway;
info.rti_info[RTAX_NETMASK] = rt_mask(rt);
rt_missmsg(RTM_LOSING, &info, rt->rt_flags, 0);
if (rt->rt_flags & RTF_DYNAMIC) {
(void)rtrequest(RTM_DELETE, rt_getkey(rt),
rt->rt_gateway, rt_mask(rt), rt->rt_flags, NULL);
}
/*
* A new route can be allocated
* the next time output is attempted.
*/
rtcache_free(&in6p->in6p_route);
}
void
in6_pcbdetach(struct in6pcb *in6p)
{
struct socket *so = in6p->in6p_socket;
int s;
if (in6p->in6p_af != AF_INET6)
return;
#if defined(IPSEC) || defined(FAST_IPSEC)
ipsec6_delete_pcbpolicy(in6p);
#endif /* IPSEC */
so->so_pcb = 0;
if (in6p->in6p_options)
m_freem(in6p->in6p_options);
if (in6p->in6p_outputopts != NULL) {
ip6_clearpktopts(in6p->in6p_outputopts, -1);
free(in6p->in6p_outputopts, M_IP6OPT);
}
rtcache_free(&in6p->in6p_route);
ip6_freemoptions(in6p->in6p_moptions);
s = splnet();
in6_pcbstate(in6p, IN6P_ATTACHED);
LIST_REMOVE(&in6p->in6p_head, inph_lhash);
CIRCLEQ_REMOVE(&in6p->in6p_table->inpt_queue, &in6p->in6p_head,
inph_queue);
pool_put(&in6pcb_pool, in6p);
splx(s);
sofree(so); /* drops the socket's lock */
mutex_enter(softnet_lock); /* reacquire it */
}
/*
* After a routing change, flush old routing. A new route can be
* allocated the next time output is attempted.
*/
void
in6_rtchange(struct in6pcb *in6p, int errno)
{
if (in6p->in6p_af != AF_INET6)
return;
rtcache_free(&in6p->in6p_route);
/*
* A new route can be allocated the next time
* output is attempted.
*/
}
static int
gif_clone_destroy(struct ifnet *ifp)
{
struct gif_softc *sc = (void *) ifp;
gif_delete_tunnel(&sc->gif_if);
LIST_REMOVE(sc, gif_list);
#ifdef INET6
encap_detach(sc->encap_cookie6);
#endif
#ifdef INET
encap_detach(sc->encap_cookie4);
#endif
bpf_detach(ifp);
if_detach(ifp);
rtcache_free(&sc->gif_ro);
free(sc, M_DEVBUF);
return (0);
}
