| version 1.94.2.3, 2007/03/24 14:56:12 |
version 1.94.2.4, 2007/05/07 10:56:04 |
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|
| } |
} |
| } |
} |
| |
|
| extern struct route_in6 ip6_forward_rt; |
extern struct route ip6_forward_rt; |
| |
|
| void |
void |
| ip6_input(struct mbuf *m) |
ip6_input(struct mbuf *m) |
| { |
{ |
| struct ip6_hdr *ip6; |
struct ip6_hdr *ip6; |
| int off = sizeof(struct ip6_hdr), nest; |
int hit, off = sizeof(struct ip6_hdr), nest; |
| u_int32_t plen; |
u_int32_t plen; |
| u_int32_t rtalert = ~0; |
u_int32_t rtalert = ~0; |
| int nxt, ours = 0; |
int nxt, ours = 0, rh_present = 0; |
| struct ifnet *deliverifp = NULL; |
struct ifnet *deliverifp = NULL; |
| int srcrt = 0; |
int srcrt = 0; |
| |
const struct rtentry *rt; |
| |
union { |
| |
struct sockaddr dst; |
| |
struct sockaddr_in6 dst6; |
| |
} u; |
| #ifdef FAST_IPSEC |
#ifdef FAST_IPSEC |
| struct m_tag *mtag; |
struct m_tag *mtag; |
| struct tdb_ident *tdbi; |
struct tdb_ident *tdbi; |
| Line 474 ip6_input(struct mbuf *m) |
|
| Line 479 ip6_input(struct mbuf *m) |
|
| goto hbhcheck; |
goto hbhcheck; |
| } |
} |
| |
|
| |
sockaddr_in6_init(&u.dst6, &ip6->ip6_dst, 0, 0, 0); |
| |
|
| /* |
/* |
| * Unicast check |
* Unicast check |
| */ |
*/ |
| if (!IN6_ARE_ADDR_EQUAL(&ip6->ip6_dst, |
rt = rtcache_lookup2(&ip6_forward_rt, &u.dst, 1, &hit); |
| &((const struct sockaddr_in6 *)rtcache_getdst((const struct route *)&ip6_forward_rt))->sin6_addr)) |
if (hit) |
| rtcache_free((struct route *)&ip6_forward_rt); |
|
| else |
|
| rtcache_check((struct route *)&ip6_forward_rt); |
|
| if (ip6_forward_rt.ro_rt != NULL) { |
|
| /* XXX Revalidated route is accounted wrongly. */ |
|
| ip6stat.ip6s_forward_cachehit++; |
ip6stat.ip6s_forward_cachehit++; |
| } else { |
else |
| struct sockaddr_in6 *dst6; |
|
| |
|
| ip6stat.ip6s_forward_cachemiss++; |
ip6stat.ip6s_forward_cachemiss++; |
| |
|
| dst6 = &ip6_forward_rt.ro_dst; |
|
| memset(dst6, 0, sizeof(*dst6)); |
|
| dst6->sin6_len = sizeof(struct sockaddr_in6); |
|
| dst6->sin6_family = AF_INET6; |
|
| dst6->sin6_addr = ip6->ip6_dst; |
|
| |
|
| rtcache_init((struct route *)&ip6_forward_rt); |
|
| } |
|
| |
|
| #define rt6_key(r) ((struct sockaddr_in6 *)((r)->rt_nodes->rn_key)) |
#define rt6_key(r) ((struct sockaddr_in6 *)((r)->rt_nodes->rn_key)) |
| |
|
| /* |
/* |
| Line 510 ip6_input(struct mbuf *m) |
|
| Line 501 ip6_input(struct mbuf *m) |
|
| * But we think it's even useful in some situations, e.g. when using |
* But we think it's even useful in some situations, e.g. when using |
| * a special daemon which wants to intercept the packet. |
* a special daemon which wants to intercept the packet. |
| */ |
*/ |
| if (ip6_forward_rt.ro_rt != NULL && |
if (rt != NULL && |
| (ip6_forward_rt.ro_rt->rt_flags & |
(rt->rt_flags & (RTF_HOST|RTF_GATEWAY)) == RTF_HOST && |
| (RTF_HOST|RTF_GATEWAY)) == RTF_HOST && |
!(rt->rt_flags & RTF_CLONED) && |
| !(ip6_forward_rt.ro_rt->rt_flags & RTF_CLONED) && |
|
| #if 0 |
#if 0 |
| /* |
/* |
| * The check below is redundant since the comparison of |
* The check below is redundant since the comparison of |
| * the destination and the key of the rtentry has |
* the destination and the key of the rtentry has |
| * already done through looking up the routing table. |
* already done through looking up the routing table. |
| */ |
*/ |
| IN6_ARE_ADDR_EQUAL(&ip6->ip6_dst, |
IN6_ARE_ADDR_EQUAL(&ip6->ip6_dst, &rt6_key(rt)->sin6_addr) && |
| &rt6_key(ip6_forward_rt.ro_rt)->sin6_addr) && |
|
| #endif |
#endif |
| ip6_forward_rt.ro_rt->rt_ifp->if_type == IFT_LOOP) { |
rt->rt_ifp->if_type == IFT_LOOP) { |
| struct in6_ifaddr *ia6 = |
struct in6_ifaddr *ia6 = (struct in6_ifaddr *)rt->rt_ifa; |
| (struct in6_ifaddr *)ip6_forward_rt.ro_rt->rt_ifa; |
|
| if (ia6->ia6_flags & IN6_IFF_ANYCAST) |
if (ia6->ia6_flags & IN6_IFF_ANYCAST) |
| m->m_flags |= M_ANYCAST6; |
m->m_flags |= M_ANYCAST6; |
| /* |
/* |
| Line 553 ip6_input(struct mbuf *m) |
|
| Line 541 ip6_input(struct mbuf *m) |
|
| */ |
*/ |
| #if defined(NFAITH) && 0 < NFAITH |
#if defined(NFAITH) && 0 < NFAITH |
| if (ip6_keepfaith) { |
if (ip6_keepfaith) { |
| if (ip6_forward_rt.ro_rt != NULL && |
if (rt != NULL && rt->rt_ifp != NULL && |
| ip6_forward_rt.ro_rt->rt_ifp != NULL && |
rt->rt_ifp->if_type == IFT_FAITH) { |
| ip6_forward_rt.ro_rt->rt_ifp->if_type == IFT_FAITH) { |
|
| /* XXX do we need more sanity checks? */ |
/* XXX do we need more sanity checks? */ |
| ours = 1; |
ours = 1; |
| deliverifp = ip6_forward_rt.ro_rt->rt_ifp; /* faith */ |
deliverifp = rt->rt_ifp; /* faith */ |
| goto hbhcheck; |
goto hbhcheck; |
| } |
} |
| } |
} |
| Line 752 ip6_input(struct mbuf *m) |
|
| Line 739 ip6_input(struct mbuf *m) |
|
| in6_ifstat_inc(deliverifp, ifs6_in_deliver); |
in6_ifstat_inc(deliverifp, ifs6_in_deliver); |
| nest = 0; |
nest = 0; |
| |
|
| |
rh_present = 0; |
| while (nxt != IPPROTO_DONE) { |
while (nxt != IPPROTO_DONE) { |
| if (ip6_hdrnestlimit && (++nest > ip6_hdrnestlimit)) { |
if (ip6_hdrnestlimit && (++nest > ip6_hdrnestlimit)) { |
| ip6stat.ip6s_toomanyhdr++; |
ip6stat.ip6s_toomanyhdr++; |
| |
in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_hdrerr); |
| goto bad; |
goto bad; |
| } |
} |
| |
|
| Line 768 ip6_input(struct mbuf *m) |
|
| Line 757 ip6_input(struct mbuf *m) |
|
| goto bad; |
goto bad; |
| } |
} |
| |
|
| |
if (nxt == IPPROTO_ROUTING) { |
| |
if (rh_present++) { |
| |
in6_ifstat_inc(m->m_pkthdr.rcvif, |
| |
ifs6_in_hdrerr); |
| |
ip6stat.ip6s_badoptions++; |
| |
goto bad; |
| |
} |
| |
} |
| |
|
| #ifdef IPSEC |
#ifdef IPSEC |
| /* |
/* |
| * enforce IPsec policy checking if we are seeing last header. |
* enforce IPsec policy checking if we are seeing last header. |
| Line 1656 sysctl_net_inet6_ip6_hashsize(SYSCTLFN_A |
|
| Line 1654 sysctl_net_inet6_ip6_hashsize(SYSCTLFN_A |
|
| } |
} |
| #endif /* GATEWAY */ |
#endif /* GATEWAY */ |
| |
|
| |
static int |
| |
sysctl_net_inet6_ip6_rht0(SYSCTLFN_ARGS) |
| |
{ |
| |
int error, tmp; |
| |
struct sysctlnode node; |
| |
|
| |
node = *rnode; |
| |
tmp = ip6_rht0; |
| |
node.sysctl_data = &tmp; |
| |
error = sysctl_lookup(SYSCTLFN_CALL(&node)); |
| |
if (error || newp == NULL) |
| |
return error; |
| |
|
| |
switch (tmp) { |
| |
case -1: /* disable processing */ |
| |
case 0: /* disable for host, enable for router */ |
| |
case 1: /* enable for all */ |
| |
break; |
| |
default: |
| |
return EINVAL; |
| |
} |
| |
ip6_rht0 = tmp; |
| |
return 0; |
| |
} |
| |
|
| /* |
/* |
| * System control for IP6 |
* System control for IP6 |
| */ |
*/ |
| Line 1955 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
|
| Line 1978 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
|
| CTL_NET, PF_INET6, IPPROTO_IPV6, |
CTL_NET, PF_INET6, IPPROTO_IPV6, |
| CTL_CREATE, CTL_EOL); |
CTL_CREATE, CTL_EOL); |
| #endif |
#endif |
| |
sysctl_createv(clog, 0, NULL, NULL, |
| |
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
| |
CTLTYPE_INT, "rht0", |
| |
SYSCTL_DESCR("Processing of routing header type 0 (IPv6)"), |
| |
sysctl_net_inet6_ip6_rht0, 0, &ip6_rht0, 0, |
| |
CTL_NET, PF_INET6, IPPROTO_IPV6, |
| |
CTL_CREATE, CTL_EOL); |
| } |
} |