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[NETNS][IPV6]: Make a subsystem for af_inet6.

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This patch add a network namespace subsystem for the af_inet6 module.
It does nothing right now, but one of its purpose is to receive the
different variables for sysctl in order to initialize them.

When the sysctl variable will be moved to the network namespace
structure, they will be no longer initialized as global static
variables, so we must find a place to initialize them. Because the
sysctl can be disabled, it has no sense to store them in the
sysctl_net_ipv6 file.

Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Lezcano 2008-01-10 02:48:33 -08:00 committed by David S. Miller
parent 291480c09a
commit 81c1c17804
1 changed files with 22 additions and 0 deletions
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22
net/ipv6/af_inet6.c
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@ -719,6 +719,21 @@ static void cleanup_ipv6_mibs(void)
snmp_mib_free((void **)udplite_stats_in6);
}
static int inet6_net_init(struct net *net)
{
return 0;
}
static void inet6_net_exit(struct net *net)
{
return;
}
static struct pernet_operations inet6_net_ops = {
.init = inet6_net_init,
.exit = inet6_net_exit,
};
static int __init inet6_init(void)
{
struct sk_buff *dummy_skb;
@ -782,6 +797,10 @@ static int __init inet6_init(void)
* able to communicate via both network protocols.
*/
err = register_pernet_subsys(&inet6_net_ops);
if (err)
goto register_pernet_fail;
#ifdef CONFIG_SYSCTL
err = ipv6_sysctl_register();
if (err)
@ -901,6 +920,8 @@ icmp_fail:
ipv6_sysctl_unregister();
sysctl_fail:
#endif
unregister_pernet_subsys(&inet6_net_ops);
register_pernet_fail:
cleanup_ipv6_mibs();
out_unregister_sock:
sock_unregister(PF_INET6);
@ -956,6 +977,7 @@ static void __exit inet6_exit(void)
#ifdef CONFIG_SYSCTL
ipv6_sysctl_unregister();
#endif
unregister_pernet_subsys(&inet6_net_ops);
cleanup_ipv6_mibs();
proto_unregister(&rawv6_prot);
proto_unregister(&udplitev6_prot);