diff options
Diffstat (limited to 'include/net/tcp.h')
| -rw-r--r-- | include/net/tcp.h | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h index d4d0e9763175..973555cb1d3f 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -494,7 +494,10 @@ struct sock *tcp_get_cookie_sock(struct sock *sk, struct sk_buff *skb, int __cookie_v4_check(const struct iphdr *iph, const struct tcphdr *th); struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb); struct request_sock *cookie_tcp_reqsk_alloc(const struct request_sock_ops *ops, - struct sock *sk, struct sk_buff *skb); + struct sock *sk, struct sk_buff *skb, + struct tcp_options_received *tcp_opt, + int mss, u32 tsoff); + #ifdef CONFIG_SYN_COOKIES /* Syncookies use a monotonic timer which increments every 60 seconds. @@ -580,8 +583,12 @@ __u32 cookie_v4_init_sequence(const struct sk_buff *skb, __u16 *mss); u64 cookie_init_timestamp(struct request_sock *req, u64 now); bool cookie_timestamp_decode(const struct net *net, struct tcp_options_received *opt); -bool cookie_ecn_ok(const struct tcp_options_received *opt, - const struct net *net, const struct dst_entry *dst); + +static inline bool cookie_ecn_ok(const struct net *net, const struct dst_entry *dst) +{ + return READ_ONCE(net->ipv4.sysctl_tcp_ecn) || + dst_feature(dst, RTAX_FEATURE_ECN); +} /* From net/ipv6/syncookies.c */ int __cookie_v6_check(const struct ipv6hdr *iph, const struct tcphdr *th); |