From: Jesse Gross <jesse-l0M0P4e3n4LQT0dZR+AlfA@public.gmane.org>
To: David Miller <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
Cc: dev-yBygre7rU0TnMu66kgdUjQ@public.gmane.org,
netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [PATCH net 2/4] openvswitch: Read tcp flags only then the tranport header is present.
Date: Thu, 20 Mar 2014 11:09:12 -0700 [thread overview]
Message-ID: <1395338954-26206-3-git-send-email-jesse@nicira.com> (raw)
In-Reply-To: <1395338954-26206-1-git-send-email-jesse-l0M0P4e3n4LQT0dZR+AlfA@public.gmane.org>
From: Jarno Rajahalme <jrajahalme-l0M0P4e3n4LQT0dZR+AlfA@public.gmane.org>
Only the first IP fragment can have a TCP header, check for this.
Signed-off-by: Jarno Rajahalme <jrajahalme-l0M0P4e3n4LQT0dZR+AlfA@public.gmane.org>
Signed-off-by: Jesse Gross <jesse-l0M0P4e3n4LQT0dZR+AlfA@public.gmane.org>
---
net/openvswitch/flow.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c
index 16f4b46..d71e60f 100644
--- a/net/openvswitch/flow.c
+++ b/net/openvswitch/flow.c
@@ -73,6 +73,7 @@ void ovs_flow_stats_update(struct sw_flow *flow, struct sk_buff *skb)
if ((flow->key.eth.type == htons(ETH_P_IP) ||
flow->key.eth.type == htons(ETH_P_IPV6)) &&
+ flow->key.ip.frag != OVS_FRAG_TYPE_LATER &&
flow->key.ip.proto == IPPROTO_TCP &&
likely(skb->len >= skb_transport_offset(skb) + sizeof(struct tcphdr))) {
tcp_flags = TCP_FLAGS_BE16(tcp_hdr(skb));
--
1.8.3.2
next prev parent reply other threads:[~2014-03-20 18:09 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-20 18:09 [GIT net] Open vSwitch Jesse Gross
[not found] ` <1395338954-26206-1-git-send-email-jesse-l0M0P4e3n4LQT0dZR+AlfA@public.gmane.org>
2014-03-20 18:09 ` [PATCH net 1/4] ovs: fix dp check in ovs_dp_reset_user_features Jesse Gross
2014-03-20 18:09 ` Jesse Gross [this message]
2014-03-20 18:09 ` [PATCH net 3/4] openvswitch: Fix race Jesse Gross
2014-03-20 18:09 ` [PATCH net 4/4] openvswitch: Correctly report flow used times for first 5 minutes after boot Jesse Gross
2014-03-20 21:30 ` [GIT net] Open vSwitch David Miller
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