Commit c72e1183 authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller

inet: makes syn_ack_timeout mandatory

There are two struct request_sock_ops providers, tcp and dccp.

inet_csk_reqsk_queue_prune() can avoid testing syn_ack_timeout being
NULL if we make it non NULL like syn_ack_timeout
Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Cc: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Cc: dccp@vger.kernel.org
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent fd4f2cea
......@@ -549,6 +549,8 @@ static inline const char *dccp_role(const struct sock *sk)
return NULL;
}
extern void dccp_syn_ack_timeout(struct sock *sk, struct request_sock *req);
#endif /* __KERNEL__ */
#endif /* _LINUX_DCCP_H */
......@@ -574,6 +574,11 @@ static void dccp_v4_reqsk_destructor(struct request_sock *req)
kfree(inet_rsk(req)->opt);
}
void dccp_syn_ack_timeout(struct sock *sk, struct request_sock *req)
{
}
EXPORT_SYMBOL(dccp_syn_ack_timeout);
static struct request_sock_ops dccp_request_sock_ops __read_mostly = {
.family = PF_INET,
.obj_size = sizeof(struct dccp_request_sock),
......@@ -581,6 +586,7 @@ static struct request_sock_ops dccp_request_sock_ops __read_mostly = {
.send_ack = dccp_reqsk_send_ack,
.destructor = dccp_v4_reqsk_destructor,
.send_reset = dccp_v4_ctl_send_reset,
.syn_ack_timeout = dccp_syn_ack_timeout,
};
int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
......
......@@ -343,6 +343,7 @@ static struct request_sock_ops dccp6_request_sock_ops = {
.send_ack = dccp_reqsk_send_ack,
.destructor = dccp_v6_reqsk_destructor,
.send_reset = dccp_v6_ctl_send_reset,
.syn_ack_timeout = dccp_syn_ack_timeout,
};
static struct sock *dccp_v6_hnd_req(struct sock *sk,struct sk_buff *skb)
......
......@@ -555,8 +555,7 @@ void inet_csk_reqsk_queue_prune(struct sock *parent,
syn_ack_recalc(req, thresh, max_retries,
queue->rskq_defer_accept,
&expire, &resend);
if (req->rsk_ops->syn_ack_timeout)
req->rsk_ops->syn_ack_timeout(parent, req);
req->rsk_ops->syn_ack_timeout(parent, req);
if (!expire &&
(!resend ||
!req->rsk_ops->rtx_syn_ack(parent, req, NULL) ||
......
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