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ipv4: call __ip_options_echo() in cookie_v4_check() 

commit 971f10eca1 ("tcp: better TCP_SKB_CB layout to reduce cache line misses")
missed that cookie_v4_check() still calls ip_options_echo() which uses
IPCB(). It should use TCPCB() at TCP layer, so call __ip_options_echo()
instead.

Fixes: commit 971f10eca1 ("tcp: better TCP_SKB_CB layout to reduce cache line misses")
Cc: Krzysztof Kolasa <kkolasa@winsoft.pl>
Cc: Eric Dumazet <edumazet@google.com>
Reported-by: Krzysztof Kolasa <kkolasa@winsoft.pl>
Tested-by: Krzysztof Kolasa <kkolasa@winsoft.pl>
Signed-off-by: Cong Wang <cwang@twopensource.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Cong Wang 2014-10-15 14:33:20 -07:00 committed by David S. Miller
parent b7983e3f89
commit 2077eebf7d
1 changed files with 1 additions and 1 deletions
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2
net/ipv4/syncookies.c
View File

@ -321,7 +321,7 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
int opt_size = sizeof(struct ip_options_rcu) + opt->optlen;
ireq->opt = kmalloc(opt_size, GFP_ATOMIC);
if (ireq->opt != NULL && ip_options_echo(&ireq->opt->opt, skb)) {
if (ireq->opt != NULL && __ip_options_echo(&ireq->opt->opt, skb, opt)) {
kfree(ireq->opt);
ireq->opt = NULL;
}