1 files changed, 50 insertions, 6 deletions

diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index 68a78731f722..c05c1df0bb04 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -255,7 +255,6 @@ static struct ip_tunnel * ipip_tunnel_locate(struct ip_tunnel_parm *parms, int c
 
         dev_hold(dev);
         ipip_tunnel_link(nt);
-        /* Do not decrement MOD_USE_COUNT here. */
         return nt;
 
 failed:
@@ -273,7 +272,7 @@ static void ipip_tunnel_uninit(struct net_device *dev)
         dev_put(dev);
 }
 
-static void ipip_err(struct sk_buff *skb, void *__unused)
+static void ipip_err(struct sk_buff *skb, u32 info)
 {
 #ifndef I_WISH_WORLD_WERE_PERFECT
 
@@ -852,11 +851,39 @@ static int __init ipip_fb_tunnel_init(struct net_device *dev)
         return 0;
 }
 
+#ifdef CONFIG_INET_TUNNEL
 static struct xfrm_tunnel ipip_handler = {
         .handler        =       ipip_rcv,
         .err_handler    =       ipip_err,
 };
 
+static inline int ipip_register(void)
+{
+        return xfrm4_tunnel_register(&ipip_handler);
+}
+
+static inline int ipip_unregister(void)
+{
+        return xfrm4_tunnel_deregister(&ipip_handler);
+}
+#else
+static struct net_protocol ipip_protocol = {
+        .handler        =       ipip_rcv,
+        .err_handler    =       ipip_err,
+        .no_policy      =       1,
+};
+
+static inline int ipip_register(void)
+{
+        return inet_add_protocol(&ipip_protocol, IPPROTO_IPIP);
+}
+
+static inline int ipip_unregister(void)
+{
+        return inet_del_protocol(&ipip_protocol, IPPROTO_IPIP);
+}
+#endif
+
 static char banner[] __initdata =
         KERN_INFO "IPv4 over IPv4 tunneling driver\n";
 
@@ -866,7 +893,7 @@ static int __init ipip_init(void)
 
         printk(banner);
 
-        if (xfrm4_tunnel_register(&ipip_handler) < 0) {
+        if (ipip_register() < 0) {
                 printk(KERN_INFO "ipip init: can't register tunnel\n");
                 return -EAGAIN;
         }
@@ -888,16 +915,33 @@ static int __init ipip_init(void)
  err2:
         free_netdev(ipip_fb_tunnel_dev);
  err1:
-        xfrm4_tunnel_deregister(&ipip_handler);
+        ipip_unregister();
         goto out;
 }
 
+static void __exit ipip_destroy_tunnels(void)
+{
+        int prio;
+
+        for (prio = 1; prio < 4; prio++) {
+                int h;
+                for (h = 0; h < HASH_SIZE; h++) {
+                        struct ip_tunnel *t;
+                        while ((t = tunnels[prio][h]) != NULL)
+                                unregister_netdevice(t->dev);
+                }
+        }
+}
+
 static void __exit ipip_fini(void)
 {
-        if (xfrm4_tunnel_deregister(&ipip_handler) < 0)
+        if (ipip_unregister() < 0)
                 printk(KERN_INFO "ipip close: can't deregister tunnel\n");
 
-        unregister_netdev(ipip_fb_tunnel_dev);
+        rtnl_lock();
+        ipip_destroy_tunnels();
+        unregister_netdevice(ipip_fb_tunnel_dev);
+        rtnl_unlock();
 }
 
 module_init(ipip_init);