diff options
Diffstat (limited to 'net/ipv4/syncookies.c')
| -rw-r--r-- | net/ipv4/syncookies.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c index 643a86c49..4c04f0933 100644 --- a/net/ipv4/syncookies.c +++ b/net/ipv4/syncookies.c @@ -19,8 +19,6 @@ #include <net/tcp.h> #include <net/route.h> -extern int sysctl_tcp_syncookies; - static u32 syncookie_secret[2][16-4+SHA_DIGEST_WORDS] __read_mostly; #define COOKIEBITS 24 /* Upper bits store count */ @@ -50,8 +48,7 @@ static u32 syncookie_secret[2][16-4+SHA_DIGEST_WORDS] __read_mostly; #define TSBITS 6 #define TSMASK (((__u32)1 << TSBITS) - 1) -static DEFINE_PER_CPU(__u32 [16 + 5 + SHA_WORKSPACE_WORDS], - ipv4_cookie_scratch); +static DEFINE_PER_CPU(__u32 [16 + 5 + SHA_WORKSPACE_WORDS], ipv4_cookie_scratch); static u32 cookie_hash(__be32 saddr, __be32 daddr, __be16 sport, __be16 dport, u32 count, int c) @@ -307,7 +304,7 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb) __u8 rcv_wscale; struct flowi4 fl4; - if (!sysctl_tcp_syncookies || !th->ack || th->rst) + if (!sock_net(sk)->ipv4.sysctl_tcp_syncookies || !th->ack || th->rst) goto out; if (tcp_synq_no_recent_overflow(sk)) |