diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2006-11-30 19:47:58 -0800 |
|---|---|---|
| committer | Chris Wright <chrisw@sous-sol.org> | 2006-12-11 11:32:37 -0800 |
| commit | dc983545ac3c17728ebb1e0c56aadc85ae3f8daf (patch) | |
| tree | ae21ac873690bd734276a10164834df0870addeb /net | |
| parent | 2066918ca75a860c085f294db4f679a397bcc9a3 (diff) | |
[PATCH] EBTABLES: Deal with the worst-case behaviour in loop checks.
No need to revisit a chain we'd already finished with during
the check for current hook. It's either instant loop (which
we'd just detected) or a duplicate work.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/bridge/netfilter/ebtables.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c index 6ab7674ea45..46ab9b75926 100644 --- a/net/bridge/netfilter/ebtables.c +++ b/net/bridge/netfilter/ebtables.c @@ -717,7 +717,9 @@ static int check_chainloops(struct ebt_entries *chain, struct ebt_cl_stack *cl_s BUGPRINT("loop\n"); return -1; } - /* this can't be 0, so the above test is correct */ + if (cl_s[i].hookmask & (1 << hooknr)) + goto letscontinue; + /* this can't be 0, so the loop test is correct */ cl_s[i].cs.n = pos + 1; pos = 0; cl_s[i].cs.e = ((void *)e + e->next_offset); |