diff options
| author | Martin Pieuchot <mpi@cvs.openbsd.org> | 2015-06-16 11:09:41 +0000 |
|---|---|---|
| committer | Martin Pieuchot <mpi@cvs.openbsd.org> | 2015-06-16 11:09:41 +0000 |
| commit | 3a3f3f5b2a66fdcf27f621f80a6d0a6d22bfaace (patch) | |
| tree | 173fe4df0244a96c60ce236617fe5b7c539ad2f1 /sys/netinet/tcp_subr.c | |
| parent | 913f86006f0c78d29161101d7aad233f8f4668df (diff) | |
Store a unique ID, an interface index, rather than a pointer to the
receiving interface in the packet header of every mbuf.
The interface pointer should now be retrieved when necessary with
if_get(). If a NULL pointer is returned by if_get(), the interface
has probably been destroy/removed and the mbuf should be freed.
Such mechanism will simplify garbage collection of mbufs and limit
problems with dangling ifp pointers.
Tested by jmatthew@ and krw@, discussed with many.
ok mikeb@, bluhm@, dlg@
Diffstat (limited to 'sys/netinet/tcp_subr.c')
| -rw-r--r-- | sys/netinet/tcp_subr.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/netinet/tcp_subr.c b/sys/netinet/tcp_subr.c index 3637eefcadb..12788eb3246 100644 --- a/sys/netinet/tcp_subr.c +++ b/sys/netinet/tcp_subr.c @@ -1,4 +1,4 @@ -/* $OpenBSD: tcp_subr.c,v 1.142 2015/05/13 10:42:46 jsg Exp $ */ +/* $OpenBSD: tcp_subr.c,v 1.143 2015/06/16 11:09:40 mpi Exp $ */ /* $NetBSD: tcp_subr.c,v 1.22 1996/02/13 23:44:00 christos Exp $ */ /* @@ -394,7 +394,7 @@ tcp_respond(struct tcpcb *tp, caddr_t template, struct tcphdr *th0, m->m_len = tlen; m->m_pkthdr.len = tlen; - m->m_pkthdr.rcvif = (struct ifnet *) 0; + m->m_pkthdr.ph_ifidx = 0; m->m_pkthdr.csum_flags |= M_TCP_CSUM_OUT; /* force routing table */ |