[NETNS][DCCPV4]: Move the dccp_v4_ctl_sk on the struct net.
And replace all its usage with init_net's socket.
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/netns/dccp.h b/include/net/netns/dccp.h
index 056e6ad..e4f16fa 100644
--- a/include/net/netns/dccp.h
+++ b/include/net/netns/dccp.h
@@ -1,7 +1,10 @@
#ifndef __NETNS_DCCP_H__
#define __NETNS_DCCP_H__
+struct sock;
+
struct netns_dccp {
+ struct sock *v4_ctl_sk;
};
#endif
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index 10bba03..85931dc 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -32,11 +32,10 @@
#include "feat.h"
/*
- * This is the global socket data structure used for responding to
+ * The dccp_ctl_sk is the global socket data structure used for responding to
* the Out-of-the-blue (OOTB) packets. A control sock will be created
* for this socket at the initialization time.
*/
-static struct sock *dccp_v4_ctl_sk;
int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
{
@@ -506,6 +505,7 @@
const struct iphdr *rxiph;
struct sk_buff *skb;
struct dst_entry *dst;
+ struct sock *ctl_sk = init_net.dccp.v4_ctl_sk;
/* Never send a reset in response to a reset. */
if (dccp_hdr(rxskb)->dccph_type == DCCP_PKT_RESET)
@@ -514,11 +514,11 @@
if (rxskb->rtable->rt_type != RTN_LOCAL)
return;
- dst = dccp_v4_route_skb(dccp_v4_ctl_sk, rxskb);
+ dst = dccp_v4_route_skb(ctl_sk, rxskb);
if (dst == NULL)
return;
- skb = dccp_ctl_make_reset(dccp_v4_ctl_sk, rxskb);
+ skb = dccp_ctl_make_reset(ctl_sk, rxskb);
if (skb == NULL)
goto out;
@@ -527,10 +527,10 @@
rxiph->daddr);
skb->dst = dst_clone(dst);
- bh_lock_sock(dccp_v4_ctl_sk);
- err = ip_build_and_send_pkt(skb, dccp_v4_ctl_sk,
+ bh_lock_sock(ctl_sk);
+ err = ip_build_and_send_pkt(skb, ctl_sk,
rxiph->daddr, rxiph->saddr, NULL);
- bh_unlock_sock(dccp_v4_ctl_sk);
+ bh_unlock_sock(ctl_sk);
if (net_xmit_eval(err) == 0) {
DCCP_INC_STATS_BH(DCCP_MIB_OUTSEGS);
@@ -1016,7 +1016,7 @@
inet_register_protosw(&dccp_v4_protosw);
- err = inet_ctl_sock_create(&dccp_v4_ctl_sk, PF_INET,
+ err = inet_ctl_sock_create(&init_net.dccp.v4_ctl_sk, PF_INET,
SOCK_DCCP, IPPROTO_DCCP, &init_net);
if (err)
goto out_unregister_protosw;
@@ -1027,7 +1027,7 @@
out:
return err;
out_destroy_ctl_sock:
- inet_ctl_sock_destroy(dccp_v4_ctl_sk);
+ inet_ctl_sock_destroy(init_net.dccp.v4_ctl_sk);
out_unregister_protosw:
inet_unregister_protosw(&dccp_v4_protosw);
inet_del_protocol(&dccp_v4_protocol, IPPROTO_DCCP);
@@ -1039,7 +1039,7 @@
static void __exit dccp_v4_exit(void)
{
unregister_pernet_subsys(&dccp_v4_ops);
- inet_ctl_sock_destroy(dccp_v4_ctl_sk);
+ inet_ctl_sock_destroy(init_net.dccp.v4_ctl_sk);
inet_unregister_protosw(&dccp_v4_protosw);
inet_del_protocol(&dccp_v4_protocol, IPPROTO_DCCP);
proto_unregister(&dccp_v4_prot);