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fix fragment handling in ip_filter
[l2tpns.git]
/
l2tpns.c
diff --git
a/l2tpns.c
b/l2tpns.c
index
0c0921c
..
ab9aded
100644
(file)
--- a/
l2tpns.c
+++ b/
l2tpns.c
@@
-4,7
+4,7
@@
// Copyright (c) 2002 FireBrick (Andrews & Arnold Ltd / Watchfront Ltd) - GPL licenced
// vim: sw=8 ts=8
// Copyright (c) 2002 FireBrick (Andrews & Arnold Ltd / Watchfront Ltd) - GPL licenced
// vim: sw=8 ts=8
-char const *cvs_id_l2tpns = "$Id: l2tpns.c,v 1.14
6 2005-11-04 14:41:50
bodea Exp $";
+char const *cvs_id_l2tpns = "$Id: l2tpns.c,v 1.14
7 2005-11-14 08:38:02
bodea Exp $";
#include <arpa/inet.h>
#include <assert.h>
#include <arpa/inet.h>
#include <assert.h>
@@
-5350,7
+5350,10
@@
int ip_filter(uint8_t *buf, int len, uint8_t filter)
if (frag_offset)
{
if (frag_offset)
{
- if (!rule->frag || rule->action == FILTER_ACTION_DENY)
+ // non-fragmented deny rules are skipped if containing L4 matches
+ if (!rule->frag &&
+ (rule->src_ports.op || rule->dst_ports.op || rule->tcp_flag_op) &&
+ rule->action == FILTER_ACTION_DENY)
continue;
}
else
continue;
}
else