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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} |
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} |
} |
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extern struct route_in6 ip6_forward_rt; |
extern struct route ip6_forward_rt; |
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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; |
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const struct rtentry *rt; |
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union { |
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struct sockaddr dst; |
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struct sockaddr_in6 dst6; |
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} 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) |
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Line 479 ip6_input(struct mbuf *m) |
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goto hbhcheck; |
goto hbhcheck; |
} |
} |
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sockaddr_in6_init(&u.dst6, &ip6->ip6_dst, 0, 0, 0); |
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/* |
/* |
* 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); |
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else |
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rtcache_check((struct route *)&ip6_forward_rt); |
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if (ip6_forward_rt.ro_rt != NULL) { |
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/* XXX Revalidated route is accounted wrongly. */ |
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ip6stat.ip6s_forward_cachehit++; |
ip6stat.ip6s_forward_cachehit++; |
} else { |
else |
struct sockaddr_in6 *dst6; |
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ip6stat.ip6s_forward_cachemiss++; |
ip6stat.ip6s_forward_cachemiss++; |
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dst6 = &ip6_forward_rt.ro_dst; |
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memset(dst6, 0, sizeof(*dst6)); |
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dst6->sin6_len = sizeof(struct sockaddr_in6); |
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dst6->sin6_family = AF_INET6; |
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dst6->sin6_addr = ip6->ip6_dst; |
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rtcache_init((struct route *)&ip6_forward_rt); |
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} |
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#define rt6_key(r) ((struct sockaddr_in6 *)((r)->rt_nodes->rn_key)) |
#define rt6_key(r) ((struct sockaddr_in6 *)((r)->rt_nodes->rn_key)) |
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/* |
/* |
Line 510 ip6_input(struct mbuf *m) |
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Line 501 ip6_input(struct mbuf *m) |
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* 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) && |
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#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) && |
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#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; |
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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) |
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Line 541 ip6_input(struct mbuf *m) |
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*/ |
*/ |
#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) { |
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/* 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) |
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Line 739 ip6_input(struct mbuf *m) |
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in6_ifstat_inc(deliverifp, ifs6_in_deliver); |
in6_ifstat_inc(deliverifp, ifs6_in_deliver); |
nest = 0; |
nest = 0; |
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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++; |
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in6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_hdrerr); |
goto bad; |
goto bad; |
} |
} |
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Line 768 ip6_input(struct mbuf *m) |
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Line 757 ip6_input(struct mbuf *m) |
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goto bad; |
goto bad; |
} |
} |
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if (nxt == IPPROTO_ROUTING) { |
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if (rh_present++) { |
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in6_ifstat_inc(m->m_pkthdr.rcvif, |
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ifs6_in_hdrerr); |
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ip6stat.ip6s_badoptions++; |
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goto bad; |
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} |
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} |
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#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 |
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Line 1654 sysctl_net_inet6_ip6_hashsize(SYSCTLFN_A |
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} |
} |
#endif /* GATEWAY */ |
#endif /* GATEWAY */ |
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static int |
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sysctl_net_inet6_ip6_rht0(SYSCTLFN_ARGS) |
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{ |
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int error, tmp; |
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struct sysctlnode node; |
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node = *rnode; |
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tmp = ip6_rht0; |
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node.sysctl_data = &tmp; |
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error = sysctl_lookup(SYSCTLFN_CALL(&node)); |
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if (error || newp == NULL) |
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return error; |
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switch (tmp) { |
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case -1: /* disable processing */ |
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case 0: /* disable for host, enable for router */ |
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case 1: /* enable for all */ |
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break; |
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default: |
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return EINVAL; |
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} |
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ip6_rht0 = tmp; |
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return 0; |
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} |
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/* |
/* |
* System control for IP6 |
* System control for IP6 |
*/ |
*/ |
Line 1955 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
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Line 1978 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
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CTL_NET, PF_INET6, IPPROTO_IPV6, |
CTL_NET, PF_INET6, IPPROTO_IPV6, |
CTL_CREATE, CTL_EOL); |
CTL_CREATE, CTL_EOL); |
#endif |
#endif |
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sysctl_createv(clog, 0, NULL, NULL, |
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CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
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CTLTYPE_INT, "rht0", |
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SYSCTL_DESCR("Processing of routing header type 0 (IPv6)"), |
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sysctl_net_inet6_ip6_rht0, 0, &ip6_rht0, 0, |
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CTL_NET, PF_INET6, IPPROTO_IPV6, |
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CTL_CREATE, CTL_EOL); |
} |
} |