version 1.78.2.2, 2006/12/30 20:50:38 |
version 1.90.2.1.2.2, 2007/09/23 21:36:35 |
Line 112 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 112 __KERNEL_RCSID(0, "$NetBSD$"); |
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#include <netinet6/ipsec.h> |
#include <netinet6/ipsec.h> |
#endif |
#endif |
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#ifdef FAST_IPSEC |
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#include <netipsec/ipsec.h> |
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#include <netipsec/ipsec6.h> |
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#include <netipsec/key.h> |
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#endif /* FAST_IPSEC */ |
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#include <netinet6/ip6protosw.h> |
#include <netinet6/ip6protosw.h> |
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#include "faith.h" |
#include "faith.h" |
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int nxt, ours = 0; |
int nxt, ours = 0; |
struct ifnet *deliverifp = NULL; |
struct ifnet *deliverifp = NULL; |
int srcrt = 0; |
int srcrt = 0; |
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#ifdef FAST_IPSEC |
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struct m_tag *mtag; |
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struct tdb_ident *tdbi; |
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struct secpolicy *sp; |
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int s, error; |
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#endif |
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#ifdef IPSEC |
#ifdef IPSEC |
/* |
/* |
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*/ |
*/ |
#ifdef IPSEC |
#ifdef IPSEC |
if (!ipsec_getnhist(m)) |
if (!ipsec_getnhist(m)) |
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#elif defined(FAST_IPSEC) |
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if (!ipsec_indone(m)) |
#else |
#else |
if (1) |
if (1) |
#endif |
#endif |
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/* |
/* |
* Unicast check |
* Unicast check |
*/ |
*/ |
if (!IN6_ARE_ADDR_EQUAL(&ip6->ip6_dst, |
if (ip6_forward_rt.ro_rt != NULL && |
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(ip6_forward_rt.ro_rt->rt_flags & RTF_UP) != 0 && |
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IN6_ARE_ADDR_EQUAL(&ip6->ip6_dst, |
&((struct sockaddr_in6 *)(&ip6_forward_rt.ro_dst))->sin6_addr)) |
&((struct sockaddr_in6 *)(&ip6_forward_rt.ro_dst))->sin6_addr)) |
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; |
struct sockaddr_in6 *dst6; |
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ip6stat.ip6s_forward_cachemiss++; |
if (ip6_forward_rt.ro_rt) { |
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/* route is down or destination is different */ |
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ip6stat.ip6s_forward_cachemiss++; |
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RTFREE(ip6_forward_rt.ro_rt); |
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ip6_forward_rt.ro_rt = 0; |
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} |
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bzero(&ip6_forward_rt.ro_dst, sizeof(struct sockaddr_in6)); |
bzero(&ip6_forward_rt.ro_dst, sizeof(struct sockaddr_in6)); |
dst6 = (struct sockaddr_in6 *)&ip6_forward_rt.ro_dst; |
dst6 = (struct sockaddr_in6 *)&ip6_forward_rt.ro_dst; |
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dst6->sin6_family = AF_INET6; |
dst6->sin6_family = AF_INET6; |
dst6->sin6_addr = ip6->ip6_dst; |
dst6->sin6_addr = ip6->ip6_dst; |
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rtcache_init((struct route *)&ip6_forward_rt); |
rtalloc((struct route *)&ip6_forward_rt); |
} |
} |
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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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* 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 (ip6_forward_rt.ro_rt && |
(ip6_forward_rt.ro_rt->rt_flags & |
(ip6_forward_rt.ro_rt->rt_flags & |
(RTF_HOST|RTF_GATEWAY)) == RTF_HOST && |
(RTF_HOST|RTF_GATEWAY)) == RTF_HOST && |
!(ip6_forward_rt.ro_rt->rt_flags & RTF_CLONED) && |
!(ip6_forward_rt.ro_rt->rt_flags & RTF_CLONED) && |
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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 (ip6_forward_rt.ro_rt && ip6_forward_rt.ro_rt->rt_ifp && |
ip6_forward_rt.ro_rt->rt_ifp != NULL && |
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ip6_forward_rt.ro_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; |
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* working right. |
* working right. |
*/ |
*/ |
struct ifaddr *ifa; |
struct ifaddr *ifa; |
TAILQ_FOREACH(ifa, &m->m_pkthdr.rcvif->if_addrlist, ifa_list) { |
for (ifa = m->m_pkthdr.rcvif->if_addrlist.tqh_first; |
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ifa; |
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ifa = ifa->ifa_list.tqe_next) { |
if (ifa->ifa_addr == NULL) |
if (ifa->ifa_addr == NULL) |
continue; /* just for safety */ |
continue; /* just for safety */ |
if (ifa->ifa_addr->sa_family != AF_INET6) |
if (ifa->ifa_addr->sa_family != AF_INET6) |
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goto bad; |
goto bad; |
} |
} |
#endif |
#endif |
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#ifdef FAST_IPSEC |
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/* |
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* enforce IPsec policy checking if we are seeing last header. |
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* note that we do not visit this with protocols with pcb layer |
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* code - like udp/tcp/raw ip. |
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*/ |
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if ((inet6sw[ip_protox[nxt]].pr_flags & PR_LASTHDR) != 0) { |
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/* |
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* Check if the packet has already had IPsec processing |
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* done. If so, then just pass it along. This tag gets |
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* set during AH, ESP, etc. input handling, before the |
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* packet is returned to the ip input queue for delivery. |
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*/ |
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mtag = m_tag_find(m, PACKET_TAG_IPSEC_IN_DONE, NULL); |
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s = splsoftnet(); |
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if (mtag != NULL) { |
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tdbi = (struct tdb_ident *)(mtag + 1); |
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sp = ipsec_getpolicy(tdbi, IPSEC_DIR_INBOUND); |
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} else { |
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sp = ipsec_getpolicybyaddr(m, IPSEC_DIR_INBOUND, |
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IP_FORWARDING, &error); |
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} |
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if (sp != NULL) { |
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/* |
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* Check security policy against packet attributes. |
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*/ |
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error = ipsec_in_reject(sp, m); |
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KEY_FREESP(&sp); |
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} else { |
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/* XXX error stat??? */ |
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error = EINVAL; |
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DPRINTF(("ip6_input: no SP, packet discarded\n"));/*XXX*/ |
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} |
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splx(s); |
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if (error) |
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goto bad; |
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} |
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#endif /* FAST_IPSEC */ |
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nxt = (*inet6sw[ip6_protox[nxt]].pr_input)(&m, &off, nxt); |
nxt = (*inet6sw[ip6_protox[nxt]].pr_input)(&m, &off, nxt); |
} |
} |
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m_tag_delete(m, mtag); |
m_tag_delete(m, mtag); |
} |
} |
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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 1820 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
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Line 1901 SYSCTL_SETUP(sysctl_net_inet6_ip6_setup, |
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NULL, 0, &ip6_mcast_pmtu, 0, |
NULL, 0, &ip6_mcast_pmtu, 0, |
CTL_NET, PF_INET6, IPPROTO_IPV6, |
CTL_NET, PF_INET6, IPPROTO_IPV6, |
CTL_CREATE, CTL_EOL); |
CTL_CREATE, CTL_EOL); |
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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); |
} |
} |