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-rw-r--r--include/net/tcp.h3
-rw-r--r--net/ipv4/syncookies.c10
-rw-r--r--net/ipv6/syncookies.c19
3 files changed, 9 insertions, 23 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 2bb2bad21d5c..978cebedd3fc 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -469,6 +469,9 @@ int tcp_send_rcvq(struct sock *sk, struct msghdr *msg, size_t size);
void inet_sk_rx_dst_set(struct sock *sk, const struct sk_buff *skb);
/* From syncookies.c */
+struct sock *tcp_get_cookie_sock(struct sock *sk, struct sk_buff *skb,
+ struct request_sock *req,
+ struct dst_entry *dst);
int __cookie_v4_check(const struct iphdr *iph, const struct tcphdr *th,
u32 cookie);
struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb);
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index df849e5a10f1..d70b1f603692 100644
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -219,9 +219,9 @@ int __cookie_v4_check(const struct iphdr *iph, const struct tcphdr *th,
}
EXPORT_SYMBOL_GPL(__cookie_v4_check);
-static struct sock *get_cookie_sock(struct sock *sk, struct sk_buff *skb,
- struct request_sock *req,
- struct dst_entry *dst)
+struct sock *tcp_get_cookie_sock(struct sock *sk, struct sk_buff *skb,
+ struct request_sock *req,
+ struct dst_entry *dst)
{
struct inet_connection_sock *icsk = inet_csk(sk);
struct sock *child;
@@ -235,7 +235,7 @@ static struct sock *get_cookie_sock(struct sock *sk, struct sk_buff *skb,
}
return child;
}
-
+EXPORT_SYMBOL(tcp_get_cookie_sock);
/*
* when syncookies are in effect and tcp timestamps are enabled we stored
@@ -391,7 +391,7 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb)
ireq->rcv_wscale = rcv_wscale;
ireq->ecn_ok = cookie_ecn_ok(&tcp_opt, sock_net(sk), &rt->dst);
- ret = get_cookie_sock(sk, skb, req, &rt->dst);
+ ret = tcp_get_cookie_sock(sk, skb, req, &rt->dst);
/* ip_queue_xmit() depends on our flow being setup
* Normal sockets get it right from inet_csk_route_child_sock()
*/
diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c
index 21bc2eb53c57..0909f4e0d53c 100644
--- a/net/ipv6/syncookies.c
+++ b/net/ipv6/syncookies.c
@@ -41,23 +41,6 @@ static __u16 const msstab[] = {
9000 - 60,
};
-static inline struct sock *get_cookie_sock(struct sock *sk, struct sk_buff *skb,
- struct request_sock *req,
- struct dst_entry *dst)
-{
- struct inet_connection_sock *icsk = inet_csk(sk);
- struct sock *child;
-
- child = icsk->icsk_af_ops->syn_recv_sock(sk, skb, req, dst);
- if (child) {
- atomic_set(&req->rsk_refcnt, 1);
- inet_csk_reqsk_queue_add(sk, req, child);
- } else {
- reqsk_free(req);
- }
- return child;
-}
-
static DEFINE_PER_CPU(__u32 [16 + 5 + SHA_WORKSPACE_WORDS],
ipv6_cookie_scratch);
@@ -264,7 +247,7 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
ireq->rcv_wscale = rcv_wscale;
ireq->ecn_ok = cookie_ecn_ok(&tcp_opt, sock_net(sk), dst);
- ret = get_cookie_sock(sk, skb, req, dst);
+ ret = tcp_get_cookie_sock(sk, skb, req, dst);
out:
return ret;
out_free: