diff options
| author | Mike Belopuhov <mikeb@cvs.openbsd.org> | 2011-06-15 09:11:02 +0000 |
|---|---|---|
| committer | Mike Belopuhov <mikeb@cvs.openbsd.org> | 2011-06-15 09:11:02 +0000 |
| commit | fd1f29bf19461cbc80443d08dd9bda476200d3cf (patch) | |
| tree | 9c0a02009d03a8b5b9d289a216bae96f113aecea /sys/netinet/ip_input.c | |
| parent | ec79616c56cc740bc77b32d8cf0f3e6ad7815d18 (diff) | |
Add IP_RECVRTABLE socket option to be used with a IPPROTO_IP
level that allows one to retrieve the original routing domain
of UDP datagrams diverted by the pf via "divert-to" with a
recvmsg(2).
ok claudio
Diffstat (limited to 'sys/netinet/ip_input.c')
| -rw-r--r-- | sys/netinet/ip_input.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/sys/netinet/ip_input.c b/sys/netinet/ip_input.c index 0d71e404e78..812d650c449 100644 --- a/sys/netinet/ip_input.c +++ b/sys/netinet/ip_input.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ip_input.c,v 1.191 2011/04/19 03:47:29 dlg Exp $ */ +/* $OpenBSD: ip_input.c,v 1.192 2011/06/15 09:11:01 mikeb Exp $ */ /* $NetBSD: ip_input.c,v 1.30 1996/03/16 23:53:58 christos Exp $ */ /* @@ -1790,5 +1790,20 @@ ip_savecontrol(struct inpcb *inp, struct mbuf **mp, struct ip *ip, if (*mp) mp = &(*mp)->m_next; } + if (inp->inp_flags & INP_RECVRTABLE) { + u_int rtableid = inp->inp_rtableid; +#if NPF > 0 + struct pf_divert *divert; + + if (m && m->m_pkthdr.pf.flags & PF_TAG_DIVERTED && + (divert = pf_find_divert(m)) != NULL) + rtableid = divert->rdomain; +#endif + + *mp = sbcreatecontrol((caddr_t) &rtableid, + sizeof(u_int), IP_RECVRTABLE, IPPROTO_IP); + if (*mp) + mp = &(*mp)->m_next; + } } |