ipv4: Namespaceify tcp syncookies sysctl knob

Signed-off-by: Nikolay Borisov <kernel@kyup.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 1 deletions

diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 3146279695b9..98313d10a2e0 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -860,7 +860,6 @@ static void tcp_v4_reqsk_destructor(struct request_sock *req)
         kfree(inet_rsk(req)->opt);
 }
 
-
 #ifdef CONFIG_TCP_MD5SIG
 /*
  * RFC2385 MD5 checksumming requires a mapping of
@@ -2391,6 +2390,8 @@ static int __net_init tcp_sk_init(struct net *net)
         net->ipv4.sysctl_tcp_syn_retries = TCP_SYN_RETRIES;
         net->ipv4.sysctl_tcp_synack_retries = TCP_SYNACK_RETRIES;
 
+        net->ipv4.sysctl_tcp_syncookies = 0;
+
         return 0;
 fail:
         tcp_sk_exit(net);