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| author | thompsa <thompsa@FreeBSD.org> | 2006-03-26 20:52:47 +0000 |
|---|---|---|
| committer | thompsa <thompsa@FreeBSD.org> | 2006-03-26 20:52:47 +0000 |
| commit | 8bb7fbe5d697a9a37edc2923b26eaf94e84bf2b6 (patch) | |
| tree | 90d70a536f37452711829fff3d589fd18ac23941 /sys/net/if_bridge.c | |
| parent | 831de5e2f57ec48f650385a83922e2cc70d08ee8 (diff) | |
| download | FreeBSD-src-8bb7fbe5d697a9a37edc2923b26eaf94e84bf2b6.zip FreeBSD-src-8bb7fbe5d697a9a37edc2923b26eaf94e84bf2b6.tar.gz | |
Assert that the mbuf is not shared to ensure problems like the last commit are
not reintroduced.
Diffstat (limited to 'sys/net/if_bridge.c')
| -rw-r--r-- | sys/net/if_bridge.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sys/net/if_bridge.c b/sys/net/if_bridge.c index 2adf062..a583442 100644 --- a/sys/net/if_bridge.c +++ b/sys/net/if_bridge.c @@ -2589,6 +2589,9 @@ bridge_pfil(struct mbuf **mp, struct ifnet *bifp, struct ifnet *ifp, int dir) snap = 0; error = -1; /* Default error if not error == 0 */ + /* we may return with the IP fields swapped, ensure its not shared */ + KASSERT(M_WRITABLE(*mp), ("%s: modifying a shared mbuf", __func__)); + if (pfil_bridge == 0 && pfil_member == 0 && pfil_ipfw == 0) return 0; /* filtering is disabled */ |
