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| author | Jarno Rajahalme <jrajahalme@nicira.com> | 2014-02-15 17:37:45 -0800 |
|---|---|---|
| committer | Jesse Gross <jesse@nicira.com> | 2014-02-15 17:37:45 -0800 |
| commit | 04382a3303c22b0c536fbd0c94c1f012f2b8ed60 (patch) | |
| tree | c642b275abaa9a89be06630017a40cc4ee6aed70 /net/openvswitch/flow.c | |
| parent | 3c7eacfc8a9a4c2bd48e0093c4f43cf69afd5210 (diff) | |
| download | lwn-04382a3303c22b0c536fbd0c94c1f012f2b8ed60.tar.gz lwn-04382a3303c22b0c536fbd0c94c1f012f2b8ed60.zip | |
openvswitch: Read tcp flags only then the tranport header is present.
Only the first IP fragment can have a TCP header, check for this.
Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
Diffstat (limited to 'net/openvswitch/flow.c')
| -rw-r--r-- | net/openvswitch/flow.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c index 16f4b46161d4..d71e60fa28cb 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)); |