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| author |   angelos <angelos@openbsd.org> | 2000-04-18 06:35:02 +0000 |
|---|---|---|
| committer | angelos <angelos@openbsd.org> | 2000-04-18 06:35:02 +0000 |
| commit | 834deb6a51ab36829a33c043eabc093ffc3815b9 (patch) | |
| tree | fc2ee84d2e07aff895615b5abec90d44db809b8b | |
| parent | cd detach (diff) | |
| download | wireguard-openbsd-834deb6a51ab36829a33c043eabc093ffc3815b9.tar.xz wireguard-openbsd-834deb6a51ab36829a33c043eabc093ffc3815b9.zip | |
Sanity check on dequeued mbufs, also keep track of correct interface
for statistics purposes.
| -rw-r--r-- | sys/net/if_enc.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/sys/net/if_enc.c b/sys/net/if_enc.c index 329a342d690..74cf10e5e2d 100644 --- a/sys/net/if_enc.c +++ b/sys/net/if_enc.c @@ -1,4 +1,4 @@ -/* $OpenBSD: if_enc.c,v 1.28 2000/04/12 18:05:47 angelos Exp $ */ +/* $OpenBSD: if_enc.c,v 1.29 2000/04/18 06:35:02 angelos Exp $ */ /* * The authors of this code are John Ioannidis (ji@tla.org), @@ -239,7 +239,15 @@ struct ifnet *ifp; if (m == NULL) /* Empty queue */ return; + + /* Sanity check */ + if ((m->m_flags & M_PKTHDR) == 0) + { + m_freem(m); + continue; + } + m->m_pkthdr.rcvif = ifp; mp = NULL; /* Encapsulate in etherip or ip-in-ip, depending on interface flag */ |