diff options
| -rw-r--r-- | net/ipv4/ip_gre.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c index 50972b397a9..d729ca82093 100644 --- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -39,6 +39,8 @@ #include <net/dsfield.h> #include <net/inet_ecn.h> #include <net/xfrm.h> +#include <net/net_namespace.h> +#include <net/netns/generic.h> #ifdef CONFIG_IPV6 #include <net/ipv6.h> @@ -122,6 +124,10 @@ static void ipgre_tunnel_setup(struct net_device *dev); static int ipgre_fb_tunnel_init(struct net_device *dev); +static int ipgre_net_id; +struct ipgre_net { +}; + static struct net_device *ipgre_fb_tunnel_dev; /* Tunnel hash table */ @@ -1275,6 +1281,40 @@ static struct net_protocol ipgre_protocol = { .err_handler = ipgre_err, }; +static int ipgre_init_net(struct net *net) +{ + int err; + struct ipgre_net *ign; + + err = -ENOMEM; + ign = kmalloc(sizeof(struct ipgre_net), GFP_KERNEL); + if (ign == NULL) + goto err_alloc; + + err = net_assign_generic(net, ipgre_net_id, ign); + if (err < 0) + goto err_assign; + + return 0; + +err_assign: + kfree(ign); +err_alloc: + return err; +} + +static void ipgre_exit_net(struct net *net) +{ + struct ipgre_net *ign; + + ign = net_generic(net, ipgre_net_id); + kfree(ign); +} + +static struct pernet_operations ipgre_net_ops = { + .init = ipgre_init_net, + .exit = ipgre_exit_net, +}; /* * And now the modules code and kernel interface. @@ -1302,6 +1342,10 @@ static int __init ipgre_init(void) if ((err = register_netdev(ipgre_fb_tunnel_dev))) goto err2; + + err = register_pernet_gen_device(&ipgre_net_id, &ipgre_net_ops); + if (err < 0) + goto err3; out: return err; err2: @@ -1309,6 +1353,9 @@ err2: err1: inet_del_protocol(&ipgre_protocol, IPPROTO_GRE); goto out; +err3: + unregister_netdevice(ipgre_fb_tunnel_dev); + goto err1; } static void __exit ipgre_destroy_tunnels(void) @@ -1333,6 +1380,8 @@ static void __exit ipgre_fini(void) rtnl_lock(); ipgre_destroy_tunnels(); rtnl_unlock(); + + unregister_pernet_gen_device(ipgre_net_id, &ipgre_net_ops); } module_init(ipgre_init); |