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[SIT]: Introduce empty struct sit_net and init/exit net ops.

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Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pavel Emelyanov 2008-04-16 01:15:17 -07:00 committed by David S. Miller
parent f96c148fd5
commit 8190d9009a
1 changed files with 50 additions and 0 deletions
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50
net/ipv6/sit.c
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@ -52,6 +52,8 @@
#include <net/inet_ecn.h>
#include <net/xfrm.h>
#include <net/dsfield.h>
#include <net/net_namespace.h>
#include <net/netns/generic.h>
/*
This version of net/ipv6/sit.c is cloned of net/ipv4/ip_gre.c
@ -66,6 +68,10 @@ static int ipip6_fb_tunnel_init(struct net_device *dev);
static int ipip6_tunnel_init(struct net_device *dev);
static void ipip6_tunnel_setup(struct net_device *dev);
static int sit_net_id;
struct sit_net {
};
static struct net_device *ipip6_fb_tunnel_dev;
static struct ip_tunnel *tunnels_r_l[HASH_SIZE];
@ -1068,6 +1074,41 @@ static void __exit sit_destroy_tunnels(void)
}
}
static int sit_init_net(struct net *net)
{
int err;
struct sit_net *sitn;
err = -ENOMEM;
sitn = kmalloc(sizeof(struct sit_net), GFP_KERNEL);
if (sitn == NULL)
goto err_alloc;
err = net_assign_generic(net, sit_net_id, sitn);
if (err < 0)
goto err_assign;
return 0;
err_assign:
kfree(sitn);
err_alloc:
return err;
}
static void sit_exit_net(struct net *net)
{
struct sit_net *sitn;
sitn = net_generic(net, sit_net_id);
kfree(sitn);
}
static struct pernet_operations sit_net_ops = {
.init = sit_init_net,
.exit = sit_exit_net,
};
static void __exit sit_cleanup(void)
{
xfrm4_tunnel_deregister(&sit_handler, AF_INET6);
@ -1076,6 +1117,8 @@ static void __exit sit_cleanup(void)
sit_destroy_tunnels();
unregister_netdevice(ipip6_fb_tunnel_dev);
rtnl_unlock();
unregister_pernet_gen_device(sit_net_id, &sit_net_ops);
}
static int __init sit_init(void)
@ -1101,6 +1144,10 @@ static int __init sit_init(void)
if ((err = register_netdev(ipip6_fb_tunnel_dev)))
goto err2;
err = register_pernet_gen_device(&sit_net_id, &sit_net_ops);
if (err < 0)
goto err3;
out:
return err;
err2:
@ -1108,6 +1155,9 @@ static int __init sit_init(void)
err1:
xfrm4_tunnel_deregister(&sit_handler, AF_INET6);
goto out;
err3:
unregister_netdevice(ipip6_fb_tunnel_dev);
goto err1;
}
module_init(sit_init);