#ifdef __NetBSD__
#include "opt_ipsec.h"
#endif
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/mbuf.h>
#include <sys/protosw.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/sockio.h>
#include <sys/errno.h>
#include <sys/time.h>
#include <sys/proc.h>
#include <net/if.h>
#include <net/if_types.h>
#include <net/route.h>
#include <netinet/in.h>
#include <netinet/in_var.h>
#include <netinet/in_systm.h>
#include <netinet/ip6.h>
#include <netinet6/ip6_var.h>
#include <netinet6/nd6.h>
#include <netinet/in_pcb.h>
#include <netinet6/in6_pcb.h>
#include <net/if_types.h>
#include "faith.h"
#if IPSEC
#include <netinet6/ipsec.h>
#include <netkey/key.h>
#include <netkey/key_debug.h>
#endif
struct in6_addr zeroin6_addr;
int
in6_pcbbind(inp, nam, p)
register struct inpcb *inp;
struct sockaddr *nam;
struct proc *p;
{
struct socket *so = inp->inp_socket;
unsigned short *lastport;
struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)NULL;
struct inpcbinfo *pcbinfo = inp->inp_pcbinfo;
u_short lport = 0;
int wild = 0, reuseport = (so->so_options & SO_REUSEPORT);
int error;
if (!in6_ifaddr)
return (EADDRNOTAVAIL);
if (inp->inp_lport || !IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr))
return(EINVAL);
if ((so->so_options & (SO_REUSEADDR|SO_REUSEPORT)) == 0)
wild = INPLOOKUP_WILDCARD;
if (nam) {
if (nam->sa_len != sizeof(*sin6))
return(EINVAL);
if (nam->sa_family != AF_INET6)
return(EAFNOSUPPORT);
sin6 = (struct sockaddr_in6 *)nam;
if (IN6_IS_SCOPE_LINKLOCAL(&sin6->sin6_addr)) {
struct in6_pktinfo *pi;
if (inp->in6p_outputopts &&
(pi = inp->in6p_outputopts->ip6po_pktinfo) &&
pi->ipi6_ifindex) {
sin6->sin6_addr.s6_addr16[1]
= htons(pi->ipi6_ifindex);
} else if (IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr)
&& inp->in6p_moptions
&& inp->in6p_moptions->im6o_multicast_ifp) {
sin6->sin6_addr.s6_addr16[1] =
htons(inp->in6p_moptions->im6o_multicast_ifp->if_index);
} else if (sin6->sin6_scope_id) {
if (sin6->sin6_scope_id < 0
|| if_index < sin6->sin6_scope_id) {
return ENXIO;
}
sin6->sin6_addr.s6_addr16[1]
= htons(sin6->sin6_scope_id & 0xffff);
sin6->sin6_scope_id = 0;
}
}
lport = sin6->sin6_port;
if (IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr)) {
if (so->so_options & SO_REUSEADDR)
reuseport = SO_REUSEADDR|SO_REUSEPORT;
} else if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
struct ifaddr *ia = NULL;
sin6->sin6_port = 0;
if ((ia = ifa_ifwithaddr((struct sockaddr *)sin6)) == 0)
return(EADDRNOTAVAIL);
if (ia &&
((struct in6_ifaddr *)ia)->ia6_flags &
(IN6_IFF_ANYCAST|IN6_IFF_NOTREADY|
IN6_IFF_DETACHED|IN6_IFF_DEPRECATED)) {
return(EADDRNOTAVAIL);
}
}
if (lport) {
struct inpcb *t;
if (ntohs(lport) < IPV6PORT_RESERVED && p &&
#if 0
suser(p->p_ucred, &p->p_acflag))
#else
((so->so_state & SS_PRIV) == 0))
#endif
return(EACCES);
if (so->so_uid &&
!IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr)) {
t = in6_pcblookup_local(inp->inp_pcbinfo,
&sin6->sin6_addr,
lport,
INPLOOKUP_WILDCARD);
if (t &&
(!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr) ||
!IN6_IS_ADDR_UNSPECIFIED(&t->in6p_laddr) ||
(t->inp_socket->so_options &
SO_REUSEPORT) == 0) &&
so->so_uid != t->inp_socket->so_uid)
return (EADDRINUSE);
}
t = in6_pcblookup_local(pcbinfo, &sin6->sin6_addr,
lport, wild);
if (t && (reuseport & t->inp_socket->so_options) == 0)
return(EADDRINUSE);
}
inp->in6p_laddr = sin6->sin6_addr;
}
if (lport == 0) {
ushort first, last;
int count;
inp->inp_flags |= INP_ANONPORT;
if (inp->inp_flags & INP_HIGHPORT) {
first = ipport_hifirstauto;
last = ipport_hilastauto;
lastport = &pcbinfo->lasthi;
} else if (inp->inp_flags & INP_LOWPORT) {
#if 0
if (p && (error = suser(p->p_ucred, &p->p_acflag)))
return error;
#else
if ((so->so_state & SS_PRIV) == 0)
return (EPERM);
#endif
first = ipport_lowfirstauto;
last = ipport_lowlastauto;
lastport = &pcbinfo->lastlow;
} else {
first = ipport_firstauto;
last = ipport_lastauto;
lastport = &pcbinfo->lastport;
}
if (first > last) {
count = first - last;
do {
if (count-- < 0) {
inp->in6p_laddr = in6addr_any;
return (EAGAIN);
}
--*lastport;
if (*lastport > first || *lastport < last)
*lastport = first;
lport = htons(*lastport);
} while (in6_pcblookup_local(pcbinfo,
&inp->in6p_laddr, lport, wild));
} else {
count = last - first;
do {
if (count-- < 0) {
inp->in6p_laddr = in6addr_any;
return (EAGAIN);
}
++*lastport;
if (*lastport < first || *lastport > last)
*lastport = first;
lport = htons(*lastport);
} while (in6_pcblookup_local(pcbinfo,
&inp->in6p_laddr, lport, wild));
}
}
inp->inp_lport = lport;
if (in_pcbinshash(inp) != 0) {
inp->in6p_laddr = in6addr_any;
inp->inp_lport = 0;
return (EAGAIN);
}
inp->in6p_flowinfo = sin6 ? sin6->sin6_flowinfo : 0;
return(0);
}
int
in6_pcbladdr(inp, nam, plocal_addr6)
register struct inpcb *inp;
struct sockaddr *nam;
struct in6_addr **plocal_addr6;
{
register struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)nam;
struct in6_pktinfo *pi;
struct ifnet *ifp = NULL;
int error = 0;
if (nam->sa_len != sizeof (*sin6))
return (EINVAL);
if (sin6->sin6_family != AF_INET6)
return (EAFNOSUPPORT);
if (sin6->sin6_port == 0)
return (EADDRNOTAVAIL);
if (IN6_IS_SCOPE_LINKLOCAL(&sin6->sin6_addr)) {
if (inp->in6p_outputopts &&
(pi = inp->in6p_outputopts->ip6po_pktinfo) &&
pi->ipi6_ifindex) {
sin6->sin6_addr.s6_addr16[1] = htons(pi->ipi6_ifindex);
ifp = ifindex2ifnet[pi->ipi6_ifindex];
}
else if (IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr) &&
inp->in6p_moptions &&
inp->in6p_moptions->im6o_multicast_ifp) {
sin6->sin6_addr.s6_addr16[1] =
htons(inp->in6p_moptions->im6o_multicast_ifp->if_index);
ifp = ifindex2ifnet[inp->in6p_moptions->im6o_multicast_ifp->if_index];
} else if (sin6->sin6_scope_id) {
if (sin6->sin6_scope_id < 0
|| if_index < sin6->sin6_scope_id) {
return ENXIO;
}
sin6->sin6_addr.s6_addr16[1]
= htons(sin6->sin6_scope_id & 0xffff);
ifp = ifindex2ifnet[sin6->sin6_scope_id];
}
}
if (in6_ifaddr) {
#define satosin6(sa) ((struct sockaddr_in6 *)(sa))
#define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa))
if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr))
sin6->sin6_addr = in6addr_loopback;
}
{
*plocal_addr6 = in6_selectsrc(sin6, inp->in6p_outputopts,
inp->in6p_moptions,
&inp->in6p_route,
&inp->in6p_laddr, &error);
if (*plocal_addr6 == 0) {
if (error == 0)
error = EADDRNOTAVAIL;
return(error);
}
}
if (inp->in6p_route.ro_rt)
ifp = inp->in6p_route.ro_rt->rt_ifp;
return(0);
}
int
in6_pcbconnect(inp, nam, p)
register struct inpcb *inp;
struct sockaddr *nam;
struct proc *p;
{
struct in6_addr *addr6;
register struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)nam;
int error;
if (error = in6_pcbladdr(inp, nam, &addr6))
return(error);
if (in6_pcblookup_hash(inp->inp_pcbinfo, &sin6->sin6_addr,
sin6->sin6_port,
IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr)
? addr6 : &inp->in6p_laddr,
inp->inp_lport, 0, NULL) != NULL) {
return (EADDRINUSE);
}
if (IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr)) {
if (inp->inp_lport == 0) {
error = in6_pcbbind(inp, (struct sockaddr *)0, p);
if (error)
return (error);
}
inp->in6p_laddr = *addr6;
}
inp->in6p_faddr = sin6->sin6_addr;
inp->inp_fport = sin6->sin6_port;
inp->in6p_flowinfo = sin6->sin6_flowinfo;
in_pcbrehash(inp);
return (0);
}
#if 0
struct in6_addr *
in6_selectsrc(dstsock, opts, mopts, ro, laddr, errorp)
struct sockaddr_in6 *dstsock;
struct ip6_pktopts *opts;
struct ip6_moptions *mopts;
struct route_in6 *ro;
struct in6_addr *laddr;
int *errorp;
{
struct in6_addr *dst;
struct in6_ifaddr *ia6 = 0;
struct in6_pktinfo *pi = NULL;
dst = &dstsock->sin6_addr;
*errorp = 0;
if (opts && (pi = opts->ip6po_pktinfo) &&
!IN6_IS_ADDR_UNSPECIFIED(&pi->ipi6_addr))
return(&pi->ipi6_addr);
if (laddr && !IN6_IS_ADDR_UNSPECIFIED(laddr))
return(laddr);
if (pi && pi->ipi6_ifindex) {
ia6 = in6_ifawithscope(ifindex2ifnet[pi->ipi6_ifindex],
dst);
if (ia6 == 0) {
*errorp = EADDRNOTAVAIL;
return(0);
}
return(&satosin6(&ia6->ia_addr)->sin6_addr);
}
if ((IN6_IS_ADDR_LINKLOCAL(dst) || IN6_IS_ADDR_MULTICAST(dst)) &&
dstsock->sin6_scope_id) {
if (dstsock->sin6_scope_id < 0 ||
if_index < dstsock->sin6_scope_id) {
*errorp = ENXIO;
return(0);
}
ia6 = in6_ifawithscope(ifindex2ifnet[dstsock->sin6_scope_id],
dst);
if (ia6 == 0) {
*errorp = EADDRNOTAVAIL;
return(0);
}
return(&satosin6(&ia6->ia_addr)->sin6_addr);
}
if (IN6_IS_ADDR_MULTICAST(dst)) {
struct ifnet *ifp = mopts ? mopts->im6o_multicast_ifp : NULL;
#ifdef __bsdi__
extern struct ifnet loif;
#endif
if (ifp == NULL && IN6_IS_ADDR_MC_NODELOCAL(dst)) {
#ifdef __bsdi__
ifp = &loif;
#else
ifp = &loif[0];
#endif
}
if (ifp) {
ia6 = in6_ifawithscope(ifp, dst);
if (ia6 == 0) {
*errorp = EADDRNOTAVAIL;
return(0);
}
return(&ia6->ia_addr.sin6_addr);
}
}
{
struct sockaddr_in6 *sin6_next;
struct rtentry *rt;
if (opts && opts->ip6po_nexthop) {
sin6_next = satosin6(opts->ip6po_nexthop);
rt = nd6_lookup(&sin6_next->sin6_addr, 1, NULL);
if (rt) {
ia6 = in6_ifawithscope(rt->rt_ifp, dst);
if (ia6 == 0)
ia6 = ifatoia6(rt->rt_ifa);
}
if (ia6 == 0) {
*errorp = EADDRNOTAVAIL;
return(0);
}
return(&satosin6(&ia6->ia_addr)->sin6_addr);
}
}
if (ro) {
if (ro->ro_rt &&
!IN6_ARE_ADDR_EQUAL(&satosin6(&ro->ro_dst)->sin6_addr, dst)) {
RTFREE(ro->ro_rt);
ro->ro_rt = (struct rtentry *)0;
}
if (ro->ro_rt == (struct rtentry *)0 ||
ro->ro_rt->rt_ifp == (struct ifnet *)0) {
bzero(&ro->ro_dst, sizeof(struct sockaddr_in6));
ro->ro_dst.sin6_family = AF_INET6;
ro->ro_dst.sin6_len = sizeof(struct sockaddr_in6);
ro->ro_dst.sin6_addr = *dst;
if (IN6_IS_ADDR_MULTICAST(dst)) {
#if defined(__FreeBSD__) || defined (__APPLE__)
ro->ro_rt = rtalloc1(&((struct route *)ro)
->ro_dst, 0, 0UL);
#endif
#if defined(__bsdi__) || defined(__NetBSD__)
ro->ro_rt = rtalloc1(&((struct route *)ro)
->ro_dst, 0);
#endif
} else {
rtalloc((struct route *)ro);
}
}
if (ro->ro_rt) {
ia6 = in6_ifawithscope(ro->ro_rt->rt_ifa->ifa_ifp, dst);
if (ia6 == 0)
ia6 = ifatoia6(ro->ro_rt->rt_ifa);
}
#if 0
if (ia6 == 0) {
struct sockaddr_in6 sin6 = {sizeof(sin6), AF_INET6, 0};
sin6->sin6_addr = *dst;
ia6 = ifatoia6(ifa_ifwithdstaddr(sin6tosa(&sin6)));
if (ia6 == 0)
ia6 = ifatoia6(ifa_ifwithnet(sin6tosa(&sin6)));
if (ia6 == 0) {
*errorp = EHOSTUNREACH;
return(0);
}
return(&satosin6(&ia6->ia_addr)->sin6_addr);
}
#endif
if (ia6 == 0) {
*errorp = EHOSTUNREACH;
return(0);
}
return(&satosin6(&ia6->ia_addr)->sin6_addr);
}
*errorp = EADDRNOTAVAIL;
return(0);
}
int
in6_selecthlim(in6p, ifp)
struct in6pcb *in6p;
struct ifnet *ifp;
{
if (in6p && in6p->in6p_hops >= 0)
return(in6p->in6p_hops);
else if (ifp)
return(nd_ifinfo[ifp->if_index].chlim);
else
return(ip6_defhlim);
}
#endif
void
in6_pcbdisconnect(inp)
struct inpcb *inp;
{
bzero((caddr_t)&inp->in6p_faddr, sizeof(inp->in6p_faddr));
inp->inp_fport = 0;
in_pcbrehash(inp);
if (inp->inp_socket->so_state & SS_NOFDREF)
in6_pcbdetach(inp);
}
void
in6_pcbdetach(inp)
struct inpcb *inp;
{
struct socket *so = inp->inp_socket;
struct inpcbinfo *ipi = inp->inp_pcbinfo;
#if IPSEC
ipsec6_delete_pcbpolicy(inp);
#endif
inp->inp_gencnt = ++ipi->ipi_gencnt;
in_pcbremlists(inp);
sotoinpcb(so) = 0;
sofree(so);
if (inp->in6p_inputopts)
m_freem(inp->in6p_inputopts->head);
ip6_freepcbopts(inp->in6p_outputopts);
ip6_freemoptions(inp->in6p_moptions);
if (inp->in6p_route.ro_rt)
rtfree(inp->in6p_route.ro_rt);
inp->inp_vflag = 0;
zfree(ipi->ipi_zone, inp);
}
int
in6_setsockaddr(so, nam)
struct socket *so;
struct sockaddr **nam;
{
int s;
register struct inpcb *inp;
register struct sockaddr_in6 *sin6;
MALLOC(sin6, struct sockaddr_in6 *, sizeof *sin6, M_SONAME, M_WAITOK);
bzero(sin6, sizeof *sin6);
sin6->sin6_family = AF_INET6;
sin6->sin6_len = sizeof(*sin6);
s = splnet();
inp = sotoinpcb(so);
if (!inp) {
splx(s);
_FREE(sin6, M_SONAME);
return EINVAL;
}
sin6->sin6_port = inp->inp_lport;
sin6->sin6_addr = inp->in6p_laddr;
splx(s);
if (IN6_IS_SCOPE_LINKLOCAL(&sin6->sin6_addr))
sin6->sin6_scope_id = ntohs(sin6->sin6_addr.s6_addr16[1]);
else
sin6->sin6_scope_id = 0;
if (IN6_IS_SCOPE_LINKLOCAL(&sin6->sin6_addr))
sin6->sin6_addr.s6_addr16[1] = 0;
*nam = (struct sockaddr *)sin6;
return 0;
}
int
in6_setpeeraddr(so, nam)
struct socket *so;
struct sockaddr **nam;
{
int s;
struct inpcb *inp;
register struct sockaddr_in6 *sin6;
MALLOC(sin6, struct sockaddr_in6 *, sizeof(*sin6), M_SONAME, M_WAITOK);
bzero((caddr_t)sin6, sizeof (*sin6));
sin6->sin6_family = AF_INET6;
sin6->sin6_len = sizeof(struct sockaddr_in6);
s = splnet();
inp = sotoinpcb(so);
if (!inp) {
splx(s);
_FREE(sin6, M_SONAME);
return EINVAL;
}
sin6->sin6_port = inp->inp_fport;
sin6->sin6_addr = inp->in6p_faddr;
splx(s);
if (IN6_IS_SCOPE_LINKLOCAL(&sin6->sin6_addr))
sin6->sin6_scope_id = ntohs(sin6->sin6_addr.s6_addr16[1]);
else
sin6->sin6_scope_id = 0;
if (IN6_IS_SCOPE_LINKLOCAL(&sin6->sin6_addr))
sin6->sin6_addr.s6_addr16[1] = 0;
*nam = (struct sockaddr *)sin6;
return 0;
}
int
in6_mapped_sockaddr(struct socket *so, struct sockaddr **nam)
{
struct inpcb *inp = sotoinpcb(so);
int error;
if (inp == NULL)
return EINVAL;
if (inp->inp_vflag & INP_IPV4) {
error = in_setsockaddr(so, nam);
if (error == 0)
in6_sin_2_v4mapsin6_in_sock(nam);
} else
error = in6_setsockaddr(so, nam);
return error;
}
int
in6_mapped_peeraddr(struct socket *so, struct sockaddr **nam)
{
struct inpcb *inp = sotoinpcb(so);
int error;
if (inp == NULL)
return EINVAL;
if (inp->inp_vflag & INP_IPV4) {
error = in_setpeeraddr(so, nam);
if (error == 0)
in6_sin_2_v4mapsin6_in_sock(nam);
} else
error = in6_setpeeraddr(so, nam);
return error;
}
void
in6_pcbnotify(head, dst, fport_arg, laddr6, lport_arg, cmd, notify)
struct inpcbhead *head;
struct sockaddr *dst;
u_int fport_arg, lport_arg;
struct in6_addr *laddr6;
int cmd;
void (*notify) __P((struct inpcb *, int));
{
struct inpcb *inp, *ninp;
struct in6_addr faddr6;
u_short fport = fport_arg, lport = lport_arg;
int errno, s;
void (*notify2) __P((struct inpcb *, int));
notify2 = NULL;
if ((unsigned)cmd > PRC_NCMDS || dst->sa_family != AF_INET6)
return;
faddr6 = ((struct sockaddr_in6 *)dst)->sin6_addr;
if (IN6_IS_ADDR_UNSPECIFIED(&faddr6))
return;
if (PRC_IS_REDIRECT(cmd) || cmd == PRC_HOSTDEAD) {
fport = 0;
lport = 0;
bzero((caddr_t)laddr6, sizeof(*laddr6));
if (cmd == PRC_HOSTDEAD && notify != in6_rtchange)
notify2 = notify;
notify = in6_rtchange;
}
errno = inet6ctlerrmap[cmd];
s = splnet();
for (inp = LIST_FIRST(head); inp != NULL; inp = ninp) {
ninp = LIST_NEXT(inp, inp_list);
if ((inp->inp_vflag & INP_IPV6) == 0)
continue;
if (notify == in6_rtchange) {
if (IN6_ARE_ADDR_EQUAL(&inp->in6p_route.ro_dst.sin6_addr,
&faddr6))
in6_rtchange(inp, errno);
if (notify2 == NULL)
continue;
notify = notify2;
}
if (!IN6_ARE_ADDR_EQUAL(&inp->in6p_faddr, &faddr6) ||
inp->inp_socket == 0 ||
(lport && inp->inp_lport != lport) ||
(!IN6_IS_ADDR_UNSPECIFIED(laddr6) &&
!IN6_ARE_ADDR_EQUAL(&inp->in6p_laddr, laddr6)) ||
(fport && inp->inp_fport != fport))
continue;
if (notify)
(*notify)(inp, errno);
}
splx(s);
}
struct inpcb *
in6_pcblookup_local(pcbinfo, laddr, lport_arg, wild_okay)
struct inpcbinfo *pcbinfo;
struct in6_addr *laddr;
u_int lport_arg;
int wild_okay;
{
register struct inpcb *inp;
int matchwild = 3, wildcard;
u_short lport = lport_arg;
if (!wild_okay) {
struct inpcbhead *head;
head = &pcbinfo->hashbase[INP_PCBHASH(INADDR_ANY, lport, 0,
pcbinfo->hashmask)];
LIST_FOREACH(inp, head, inp_hash) {
if ((inp->inp_vflag & INP_IPV6) == 0)
continue;
if (IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_faddr) &&
IN6_ARE_ADDR_EQUAL(&inp->in6p_laddr, laddr) &&
inp->inp_lport == lport) {
return (inp);
}
}
return (NULL);
} else {
struct inpcbporthead *porthash;
struct inpcbport *phd;
struct inpcb *match = NULL;
porthash = &pcbinfo->porthashbase[INP_PCBPORTHASH(lport,
pcbinfo->porthashmask)];
LIST_FOREACH(phd, porthash, phd_hash) {
if (phd->phd_port == lport)
break;
}
if (phd != NULL) {
LIST_FOREACH(inp, &phd->phd_pcblist, inp_portlist) {
wildcard = 0;
if ((inp->inp_vflag & INP_IPV6) == 0)
continue;
if (!IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_faddr))
wildcard++;
if (!IN6_IS_ADDR_UNSPECIFIED(
&inp->in6p_laddr)) {
if (IN6_IS_ADDR_UNSPECIFIED(laddr))
wildcard++;
else if (!IN6_ARE_ADDR_EQUAL(
&inp->in6p_laddr, laddr))
continue;
} else {
if (!IN6_IS_ADDR_UNSPECIFIED(laddr))
wildcard++;
}
if (wildcard < matchwild) {
match = inp;
matchwild = wildcard;
if (matchwild == 0) {
break;
}
}
}
}
return (match);
}
}
void
in6_losing(in6p)
struct inpcb *in6p;
{
struct rtentry *rt;
struct rt_addrinfo info;
if ((rt = in6p->in6p_route.ro_rt) != NULL) {
in6p->in6p_route.ro_rt = 0;
bzero((caddr_t)&info, sizeof(info));
info.rti_info[RTAX_DST] =
(struct sockaddr *)&in6p->in6p_route.ro_dst;
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_key(rt),
rt->rt_gateway, rt_mask(rt), rt->rt_flags,
(struct rtentry **)0);
else
rtfree(rt);
}
}
void
in6_rtchange(inp, errno)
struct inpcb *inp;
int errno;
{
if (inp->in6p_route.ro_rt) {
rtfree(inp->in6p_route.ro_rt);
inp->in6p_route.ro_rt = 0;
}
}
struct inpcb *
in6_pcblookup_hash(pcbinfo, faddr, fport_arg, laddr, lport_arg, wildcard, ifp)
struct inpcbinfo *pcbinfo;
struct in6_addr *faddr, *laddr;
u_int fport_arg, lport_arg;
int wildcard;
struct ifnet *ifp;
{
struct inpcbhead *head;
register struct inpcb *inp;
u_short fport = fport_arg, lport = lport_arg;
head = &pcbinfo->hashbase[INP_PCBHASH(faddr->s6_addr32[3] ,
lport, fport,
pcbinfo->hashmask)];
for (inp = head->lh_first; inp != NULL; inp = inp->inp_hash.le_next) {
if ((inp->inp_vflag & INP_IPV6) == 0)
continue;
if (IN6_ARE_ADDR_EQUAL(&inp->in6p_faddr, faddr) &&
IN6_ARE_ADDR_EQUAL(&inp->in6p_laddr, laddr) &&
inp->inp_fport == fport &&
inp->inp_lport == lport) {
return (inp);
}
}
if (wildcard) {
struct inpcb *local_wild = NULL;
head = &pcbinfo->hashbase[INP_PCBHASH(INADDR_ANY, lport, 0,
pcbinfo->hashmask)];
for (inp = head->lh_first; inp != NULL;
inp = inp->inp_hash.le_next) {
if ((inp->inp_vflag & INP_IPV6) == 0)
continue;
if (IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_faddr) &&
inp->inp_lport == lport) {
#if defined(NFAITH) && NFAITH > 0
if (ifp && ifp->if_type == IFT_FAITH &&
(inp->inp_flags & INP_FAITH) == 0)
continue;
#endif
if (IN6_ARE_ADDR_EQUAL(&inp->in6p_laddr,
laddr))
return (inp);
else if (IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr))
local_wild = inp;
}
}
return (local_wild);
}
return (NULL);
}
void
init_sin6(struct sockaddr_in6 *sin6, struct mbuf *m)
{
struct ip6_hdr *ip;
ip = mtod(m, struct ip6_hdr *);
bzero(sin6, sizeof(*sin6));
sin6->sin6_len = sizeof(*sin6);
sin6->sin6_family = AF_INET6;
sin6->sin6_addr = ip->ip6_src;
if (IN6_IS_SCOPE_LINKLOCAL(&sin6->sin6_addr))
sin6->sin6_addr.s6_addr16[1] = 0;
sin6->sin6_scope_id =
(m->m_pkthdr.rcvif && IN6_IS_SCOPE_LINKLOCAL(&sin6->sin6_addr))
? m->m_pkthdr.rcvif->if_index : 0;
return;
}