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sys/netinet6/ip6_forward.c
| Show First 20 Lines • Show All 97 Lines • ▼ Show 20 Lines | ip6_forward(struct mbuf *m, int srcrt) | ||||
| int error, type = 0, code = 0; | int error, type = 0, code = 0; | ||||
| struct mbuf *mcopy = NULL; | struct mbuf *mcopy = NULL; | ||||
| struct ifnet *origifp; /* maybe unnecessary */ | struct ifnet *origifp; /* maybe unnecessary */ | ||||
| u_int32_t inzone, outzone; | u_int32_t inzone, outzone; | ||||
| struct in6_addr src_in6, dst_in6, odst; | struct in6_addr src_in6, dst_in6, odst; | ||||
| #ifdef IPSEC | #ifdef IPSEC | ||||
| struct secpolicy *sp = NULL; | struct secpolicy *sp = NULL; | ||||
| #endif | #endif | ||||
| struct m_tag *fwd_tag; | |||||
| char ip6bufs[INET6_ADDRSTRLEN], ip6bufd[INET6_ADDRSTRLEN]; | char ip6bufs[INET6_ADDRSTRLEN], ip6bufd[INET6_ADDRSTRLEN]; | ||||
| /* | /* | ||||
| * Do not forward packets to multicast destination (should be handled | * Do not forward packets to multicast destination (should be handled | ||||
| * by ip6_mforward(). | * by ip6_mforward(). | ||||
| * Do not forward packets with unspecified source. It was discussed | * Do not forward packets with unspecified source. It was discussed | ||||
| * in July 2000, on the ipngwg mailing list. | * in July 2000, on the ipngwg mailing list. | ||||
| */ | */ | ||||
| ▲ Show 20 Lines • Show All 405 Lines • ▼ Show 20 Lines | |||||
| #ifdef SCTP | #ifdef SCTP | ||||
| if (m->m_pkthdr.csum_flags & CSUM_SCTP_IPV6) | if (m->m_pkthdr.csum_flags & CSUM_SCTP_IPV6) | ||||
| m->m_pkthdr.csum_flags |= CSUM_SCTP_VALID; | m->m_pkthdr.csum_flags |= CSUM_SCTP_VALID; | ||||
| #endif | #endif | ||||
| error = netisr_queue(NETISR_IPV6, m); | error = netisr_queue(NETISR_IPV6, m); | ||||
| goto out; | goto out; | ||||
| } | } | ||||
| /* Or forward to some other address? */ | /* Or forward to some other address? */ | ||||
| if ((m->m_flags & M_IP6_NEXTHOP) && | if (IP6_HAS_NEXTHOP(m)) { | ||||
| (fwd_tag = m_tag_find(m, PACKET_TAG_IPFORWARD, NULL)) != NULL) { | |||||
| dst = (struct sockaddr_in6 *)&rin6.ro_dst; | dst = (struct sockaddr_in6 *)&rin6.ro_dst; | ||||
franco_opnsense.org: convoluted logic, worked around it... | |||||
| bcopy((fwd_tag+1), dst, sizeof(struct sockaddr_in6)); | if (ip6_get_fwdtag(m, dst, NULL)) { | ||||
| /* XXX what to do in error case? */ | |||||
franco_opnsense.orgAuthorUnsubmitted Done Inline Actionswhat do do here? dst was tained cannot abort like before franco_opnsense.org: what do do here? dst was tained cannot abort like before | |||||
aeUnsubmitted Done Inline Actionsgoto freecopy; ae: goto freecopy; | |||||
aeUnsubmitted Done Inline Actionsand m_freem(m) ae: and m_freem(m) | |||||
franco_opnsense.orgAuthorUnsubmitted Not Done Inline Actionsbetter safe than sorry: one for freecopy, one for bad franco_opnsense.org: better safe than sorry: one for freecopy, one for bad | |||||
| } | |||||
| m->m_flags |= M_SKIP_FIREWALL; | m->m_flags |= M_SKIP_FIREWALL; | ||||
| m->m_flags &= ~M_IP6_NEXTHOP; | ip6_flush_fwdtag(m); | ||||
| m_tag_delete(m, fwd_tag); | |||||
| RTFREE(rt); | RTFREE(rt); | ||||
| goto again2; | goto again2; | ||||
| } | } | ||||
| pass: | pass: | ||||
| /* See if the size was changed by the packet filter. */ | /* See if the size was changed by the packet filter. */ | ||||
| if (m->m_pkthdr.len > IN6_LINKMTU(rt->rt_ifp)) { | if (m->m_pkthdr.len > IN6_LINKMTU(rt->rt_ifp)) { | ||||
| in6_ifstat_inc(rt->rt_ifp, ifs6_in_toobig); | in6_ifstat_inc(rt->rt_ifp, ifs6_in_toobig); | ||||
| ▲ Show 20 Lines • Show All 85 Lines • Show Last 20 Lines | |||||
convoluted logic, worked around it...