diff options
| author | Bart De Schuymer <bdschuym@pandora.be> | 2006-01-10 13:12:22 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2006-01-10 13:12:22 -0800 |
| commit | 8a4c8a96a47c9e2f08156fd9664974df086eed50 (patch) | |
| tree | 2049d3b8c70b1893c740eda04a2e9854a9201f01 /net | |
| parent | 65e480ac551a7d95969aa824f77d7160a74cf08d (diff) | |
[EBTABLES] Don't match tcp/udp source/destination port for IP fragments
Signed-off-by: Bart De Schuymer <bdschuym@pandora.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/bridge/netfilter/ebt_ip.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/bridge/netfilter/ebt_ip.c b/net/bridge/netfilter/ebt_ip.c index 7323805b972..f158fe67dd6 100644 --- a/net/bridge/netfilter/ebt_ip.c +++ b/net/bridge/netfilter/ebt_ip.c @@ -15,6 +15,7 @@ #include <linux/netfilter_bridge/ebtables.h> #include <linux/netfilter_bridge/ebt_ip.h> #include <linux/ip.h> +#include <net/ip.h> #include <linux/in.h> #include <linux/module.h> @@ -51,6 +52,8 @@ static int ebt_filter_ip(const struct sk_buff *skb, const struct net_device *in, if (!(info->bitmask & EBT_IP_DPORT) && !(info->bitmask & EBT_IP_SPORT)) return EBT_MATCH; + if (ntohs(ih->frag_off) & IP_OFFSET) + return EBT_NOMATCH; pptr = skb_header_pointer(skb, ih->ihl*4, sizeof(_ports), &_ports); if (pptr == NULL) |