[SIT]: Introduce empty struct sit_net and init/exit net ops.
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 91e46fb..aa6efc2 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -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_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 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 @@
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 @@
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 @@
err1:
xfrm4_tunnel_deregister(&sit_handler, AF_INET6);
goto out;
+err3:
+ unregister_netdevice(ipip6_fb_tunnel_dev);
+ goto err1;
}
module_init(sit_init);