diff options
| author | YASUOKA Masahiko <yasuoka@cvs.openbsd.org> | 2012-09-17 20:01:27 +0000 |
|---|---|---|
| committer | YASUOKA Masahiko <yasuoka@cvs.openbsd.org> | 2012-09-17 20:01:27 +0000 |
| commit | 7ae5b4210777fba0c46da75f69da33ac20326c6f (patch) | |
| tree | 85cc8a11c1f4039aeb90935008177596da0f4adf /sys/netinet/udp_usrreq.c | |
| parent | 67aae5022f47ddfd5a5fcd6c9d001d3dfc52b80d (diff) | |
add IPV6_RECVDSTPORT socket option, which enables us to get original
(= before divert) destination port of a UDP packet. The way to use
this option is same as IP_RECVDSTPORT.
from UMEZAWA Takeshi
tweaks from jmc; ok henning bluhm
Diffstat (limited to 'sys/netinet/udp_usrreq.c')
| -rw-r--r-- | sys/netinet/udp_usrreq.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/sys/netinet/udp_usrreq.c b/sys/netinet/udp_usrreq.c index 5a8d8e596e4..48700af5473 100644 --- a/sys/netinet/udp_usrreq.c +++ b/sys/netinet/udp_usrreq.c @@ -1,4 +1,4 @@ -/* $OpenBSD: udp_usrreq.c,v 1.149 2012/07/17 03:18:57 yasuoka Exp $ */ +/* $OpenBSD: udp_usrreq.c,v 1.150 2012/09/17 20:01:26 yasuoka Exp $ */ /* $NetBSD: udp_usrreq.c,v 1.28 1996/03/16 23:54:03 christos Exp $ */ /* @@ -688,6 +688,16 @@ udp_input(struct mbuf *m, ...) if (ip && (inp->inp_flags & INP_CONTROLOPTS || inp->inp_socket->so_options & SO_TIMESTAMP)) ip_savecontrol(inp, &opts, ip, m); +#ifdef INET6 + if (ip6 && (inp->inp_flags & IN6P_RECVDSTPORT)) { + struct mbuf **mp = &opts; + + while (*mp) + mp = &(*mp)->m_next; + *mp = sbcreatecontrol((caddr_t)&uh->uh_dport, sizeof(u_int16_t), + IPV6_RECVDSTPORT, IPPROTO_IPV6); + } +#endif /* INET6 */ if (ip && (inp->inp_flags & INP_RECVDSTPORT)) { struct mbuf **mp = &opts; |