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[NETNS]: Inet control socket should not hold a namespace.

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This is a generic requirement, so make inet_ctl_sock_create namespace
aware and create a inet_ctl_sock_destroy wrapper around
sk_release_kernel.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Denis V. Lunev 2008-04-03 14:28:30 -07:00 committed by David S. Miller
parent eee4fe4ded
commit 5677242f43
7 changed files with 22 additions and 21 deletions
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8
include/net/inet_common.h
View file

@ -42,7 +42,13 @@ extern int inet_ioctl(struct socket *sock,
extern int inet_ctl_sock_create(struct sock **sk,
unsigned short family,
unsigned short type,
unsigned char protocol);
unsigned char protocol,
struct net *net);
static inline void inet_ctl_sock_destroy(struct sock *sk)
{
sk_release_kernel(sk);
}
#endif

4
net/dccp/ipv4.c
View file

@ -1003,7 +1003,7 @@ static int __init dccp_v4_init(void)
inet_register_protosw(&dccp_v4_protosw);
err = inet_ctl_sock_create(&dccp_v4_ctl_sk, PF_INET,
SOCK_DCCP, IPPROTO_DCCP);
SOCK_DCCP, IPPROTO_DCCP, &init_net);
if (err)
goto out_unregister_protosw;
out:
@ -1018,7 +1018,7 @@ static int __init dccp_v4_init(void)
static void __exit dccp_v4_exit(void)
{
sock_release(dccp_v4_ctl_sk->sk_socket);
inet_ctl_sock_destroy(dccp_v4_ctl_sk);
inet_unregister_protosw(&dccp_v4_protosw);
inet_del_protocol(&dccp_v4_protocol, IPPROTO_DCCP);
proto_unregister(&dccp_v4_prot);

4
net/dccp/ipv6.c
View file

@ -1185,7 +1185,7 @@ static int __init dccp_v6_init(void)
inet6_register_protosw(&dccp_v6_protosw);
err = inet_ctl_sock_create(&dccp_v6_ctl_sk, PF_INET6,
SOCK_DCCP, IPPROTO_DCCP);
SOCK_DCCP, IPPROTO_DCCP, &init_net);
if (err != 0)
goto out_unregister_protosw;
out:
@ -1200,7 +1200,7 @@ static int __init dccp_v6_init(void)
static void __exit dccp_v6_exit(void)
{
sock_release(dccp_v6_ctl_sk->sk_socket);
inet_ctl_sock_destroy(dccp_v6_ctl_sk);
inet6_del_protocol(&dccp_v6_protocol, IPPROTO_DCCP);
inet6_unregister_protosw(&dccp_v6_protosw);
proto_unregister(&dccp_v6_prot);

5
net/ipv4/af_inet.c
View file

@ -1251,7 +1251,8 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb, int features)
}
int inet_ctl_sock_create(struct sock **sk, unsigned short family,
unsigned short type, unsigned char protocol)
unsigned short type, unsigned char protocol,
struct net *net)
{
struct socket *sock;
int rc = sock_create_kern(family, type, protocol, &sock);
@ -1265,6 +1266,8 @@ int inet_ctl_sock_create(struct sock **sk, unsigned short family,
* we do not wish this socket to see incoming packets.
*/
(*sk)->sk_prot->unhash(*sk);
sk_change_net(*sk, net);
}
return rc;
}

2
net/ipv4/tcp_ipv4.c
View file

@ -2491,7 +2491,7 @@ struct proto tcp_prot = {
void __init tcp_v4_init(void)
{
if (inet_ctl_sock_create(&tcp_sock, PF_INET, SOCK_RAW,
IPPROTO_TCP) < 0)
IPPROTO_TCP, &init_net) < 0)
panic("Failed to create the TCP control socket.\n");
}

14
net/ipv6/tcp_ipv6.c
View file

@ -2199,21 +2199,13 @@ static struct inet_protosw tcpv6_protosw = {
static int tcpv6_net_init(struct net *net)
{
int err;
struct sock *sk;
err = inet_ctl_sock_create(&sk, PF_INET6, SOCK_RAW, IPPROTO_TCP);
if (err)
return err;
net->ipv6.tcp_sk = sk;
sk_change_net(sk, net);
return err;
return inet_ctl_sock_create(&net->ipv6.tcp_sk, PF_INET6,
SOCK_RAW, IPPROTO_TCP, net);
}
static void tcpv6_net_exit(struct net *net)
{
sk_release_kernel(net->ipv6.tcp_sk);
inet_ctl_sock_destroy(net->ipv6.tcp_sk);
}
static struct pernet_operations tcpv6_net_ops = {

6
net/sctp/protocol.c
View file

@ -681,7 +681,7 @@ static int sctp_ctl_sock_init(void)
family = PF_INET;
err = inet_ctl_sock_create(&sctp_ctl_sock, family,
SOCK_SEQPACKET, IPPROTO_SCTP);
SOCK_SEQPACKET, IPPROTO_SCTP, &init_net);
if (err < 0) {
printk(KERN_ERR
"SCTP: Failed to create the SCTP control socket.\n");
@ -1284,7 +1284,7 @@ SCTP_STATIC __init int sctp_init(void)
sctp_v6_del_protocol();
err_add_protocol:
sctp_v4_del_protocol();
sock_release(sctp_ctl_sock->sk_socket);
inet_ctl_sock_destroy(sctp_ctl_sock);
err_ctl_sock_init:
sctp_v6_protosw_exit();
err_v6_protosw_init:
@ -1328,7 +1328,7 @@ SCTP_STATIC __exit void sctp_exit(void)
sctp_v4_del_protocol();
/* Free the control endpoint. */
sock_release(sctp_ctl_sock->sk_socket);
inet_ctl_sock_destroy(sctp_ctl_sock);
/* Free protosw registrations */
sctp_v6_protosw_exit();