diff options
Diffstat (limited to 'net/ipv4/syncookies.c')
| -rw-r--r-- | net/ipv4/syncookies.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c index 500f665f98cb..5459a78b9809 100644 --- a/net/ipv4/syncookies.c +++ b/net/ipv4/syncookies.c @@ -222,7 +222,7 @@ struct sock *tcp_get_cookie_sock(struct sock *sk, struct sk_buff *skb, return NULL; } -EXPORT_SYMBOL(tcp_get_cookie_sock); +EXPORT_IPV6_MOD(tcp_get_cookie_sock); /* * when syncookies are in effect and tcp timestamps are enabled we stored @@ -259,7 +259,7 @@ bool cookie_timestamp_decode(const struct net *net, return READ_ONCE(net->ipv4.sysctl_tcp_window_scaling) != 0; } -EXPORT_SYMBOL(cookie_timestamp_decode); +EXPORT_IPV6_MOD(cookie_timestamp_decode); static int cookie_tcp_reqsk_init(struct sock *sk, struct sk_buff *skb, struct request_sock *req) @@ -279,6 +279,7 @@ static int cookie_tcp_reqsk_init(struct sock *sk, struct sk_buff *skb, ireq->smc_ok = 0; treq->snt_synack = 0; + treq->snt_tsval_first = 0; treq->tfo_listener = false; treq->txhash = net_tx_rndhash(); treq->rcv_isn = ntohl(th->seq) - 1; @@ -310,7 +311,7 @@ struct request_sock *cookie_bpf_check(struct sock *sk, struct sk_buff *skb) return req; } -EXPORT_SYMBOL_GPL(cookie_bpf_check); +EXPORT_IPV6_MOD_GPL(cookie_bpf_check); #endif struct request_sock *cookie_tcp_reqsk_alloc(const struct request_sock_ops *ops, @@ -351,7 +352,7 @@ struct request_sock *cookie_tcp_reqsk_alloc(const struct request_sock_ops *ops, return req; } -EXPORT_SYMBOL_GPL(cookie_tcp_reqsk_alloc); +EXPORT_IPV6_MOD_GPL(cookie_tcp_reqsk_alloc); static struct request_sock *cookie_tcp_check(struct net *net, struct sock *sk, struct sk_buff *skb) @@ -462,7 +463,8 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb) } /* Try to redo what tcp_v4_send_synack did. */ - req->rsk_window_clamp = tp->window_clamp ? :dst_metric(&rt->dst, RTAX_WINDOW); + req->rsk_window_clamp = READ_ONCE(tp->window_clamp) ? : + dst_metric(&rt->dst, RTAX_WINDOW); /* limit the window selection if the user enforce a smaller rx buffer */ full_space = tcp_full_space(sk); if (sk->sk_userlocks & SOCK_RCVBUF_LOCK && @@ -495,6 +497,6 @@ out: out_free: reqsk_free(req); out_drop: - kfree_skb_reason(skb, reason); + sk_skb_reason_drop(sk, skb, reason); return NULL; } |