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tcp: unify tcp_v4_rtx_synack and tcp_v6_rtx_synack 

Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Octavian Purdila 2014-06-25 17:09:59 +03:00 committed by David S. Miller
parent d6274bd8d6
commit 5db92c9949
4 changed files with 19 additions and 27 deletions
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2
include/net/tcp.h
View File

@ -1573,6 +1573,8 @@ int tcp4_proc_init(void);
void tcp4_proc_exit(void);
#endif
int tcp_rtx_synack(struct sock *sk, struct request_sock *req);
/* TCP af-specific functions */
struct tcp_sock_af_ops {
#ifdef CONFIG_TCP_MD5SIG

14
net/ipv4/tcp_ipv4.c
View File

@ -845,18 +845,6 @@ static int tcp_v4_send_synack(struct sock *sk, struct dst_entry *dst,
return err;
}
static int tcp_v4_rtx_synack(struct sock *sk, struct request_sock *req)
{
const struct tcp_request_sock_ops *af_ops = tcp_rsk(req)->af_specific;
int res = af_ops->send_synack(sk, NULL, NULL, req, 0, NULL);
if (!res) {
TCP_INC_STATS_BH(sock_net(sk), TCP_MIB_RETRANSSEGS);
NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPSYNRETRANS);
}
return res;
}
/*
* IPv4 request_sock destructor.
*/
@ -1269,7 +1257,7 @@ static struct dst_entry *tcp_v4_route_req(struct sock *sk, struct flowi *fl,
struct request_sock_ops tcp_request_sock_ops __read_mostly = {
.family = PF_INET,
.obj_size = sizeof(struct tcp_request_sock),
.rtx_syn_ack = tcp_v4_rtx_synack,
.rtx_syn_ack = tcp_rtx_synack,
.send_ack = tcp_v4_reqsk_send_ack,
.destructor = tcp_v4_reqsk_destructor,
.send_reset = tcp_v4_send_reset,

15
net/ipv4/tcp_output.c
View File

@ -3299,3 +3299,18 @@ void tcp_send_probe0(struct sock *sk)
TCP_RTO_MAX);
}
}
int tcp_rtx_synack(struct sock *sk, struct request_sock *req)
{
const struct tcp_request_sock_ops *af_ops = tcp_rsk(req)->af_specific;
struct flowi fl;
int res;
res = af_ops->send_synack(sk, NULL, &fl, req, 0, NULL);
if (!res) {
TCP_INC_STATS_BH(sock_net(sk), TCP_MIB_RETRANSSEGS);
NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPSYNRETRANS);
}
return res;
}
EXPORT_SYMBOL(tcp_rtx_synack);

15
net/ipv6/tcp_ipv6.c
View File

@ -506,19 +506,6 @@ done:
return err;
}
static int tcp_v6_rtx_synack(struct sock *sk, struct request_sock *req)
{
const struct tcp_request_sock_ops *af_ops = tcp_rsk(req)->af_specific;
struct flowi fl;
int res;
res = af_ops->send_synack(sk, NULL, &fl, req, 0, NULL);
if (!res) {
TCP_INC_STATS_BH(sock_net(sk), TCP_MIB_RETRANSSEGS);
NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPSYNRETRANS);
}
return res;
}
static void tcp_v6_reqsk_destructor(struct request_sock *req)
{
@ -759,7 +746,7 @@ static struct dst_entry *tcp_v6_route_req(struct sock *sk, struct flowi *fl,
struct request_sock_ops tcp6_request_sock_ops __read_mostly = {
.family = AF_INET6,
.obj_size = sizeof(struct tcp6_request_sock),
.rtx_syn_ack = tcp_v6_rtx_synack,
.rtx_syn_ack = tcp_rtx_synack,
.send_ack = tcp_v6_reqsk_send_ack,
.destructor = tcp_v6_reqsk_destructor,
.send_reset = tcp_v6_send_reset,