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authorPravin B Shelar <pshelar@nicira.com>2013-03-24 17:36:29 +0000
committerDavid S. Miller <davem@davemloft.net>2013-03-26 13:50:05 -0400
commit330305cc4a6b0cb75c22fc01b8826f0ad755550f (patch)
tree91d73aaccb12054ba88c538c78a9c1559a0218c8 /include
parent9fe16b78ee17579cb4f333534cf7043e94c67024 (diff)
downloadlinux-330305cc4a6b0cb75c22fc01b8826f0ad755550f.tar.bz2
ipv4: Fix ip-header identification for gso packets.
ip-header id needs to be incremented even if IP_DF flag is set. This behaviour was changed in commit 490ab08127cebc25e3a26 (IP_GRE: Fix IP-Identification). Following patch fixes it so that identification is always incremented. Reported-by: Cong Wang <amwang@redhat.com> Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/net/ipip.h16
1 files changed, 6 insertions, 10 deletions
diff --git a/include/net/ipip.h b/include/net/ipip.h
index fd19625ff99d..982141c15200 100644
--- a/include/net/ipip.h
+++ b/include/net/ipip.h
@@ -77,15 +77,11 @@ static inline void tunnel_ip_select_ident(struct sk_buff *skb,
{
struct iphdr *iph = ip_hdr(skb);
- if (iph->frag_off & htons(IP_DF))
- iph->id = 0;
- else {
- /* Use inner packet iph-id if possible. */
- if (skb->protocol == htons(ETH_P_IP) && old_iph->id)
- iph->id = old_iph->id;
- else
- __ip_select_ident(iph, dst,
- (skb_shinfo(skb)->gso_segs ?: 1) - 1);
- }
+ /* Use inner packet iph-id if possible. */
+ if (skb->protocol == htons(ETH_P_IP) && old_iph->id)
+ iph->id = old_iph->id;
+ else
+ __ip_select_ident(iph, dst,
+ (skb_shinfo(skb)->gso_segs ?: 1) - 1);
}
#endif