tcp: Fix syncookies sysctl default.

Unintentionally the default was changed to zero, fix
that.

Fixes: 12ed8244ed ("ipv4: Namespaceify tcp syncookies sysctl knob")
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 11ae706f53a198bc2b76dcc6c80d391ee1d15c68..0d381fa164f85b4015e548e9f30d2d0f4058b73a 100644 (file)
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -2389,7 +2389,7 @@ 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;
+       net->ipv4.sysctl_tcp_syncookies = 1;
        net->ipv4.sysctl_tcp_reordering = TCP_FASTRETRANS_THRESH;
        net->ipv4.sysctl_tcp_retries1 = TCP_RETR1;
        net->ipv4.sysctl_tcp_retries2 = TCP_RETR2;