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authorAlexey Dobriyan <adobriyan@gmail.com>2010-02-16 09:05:04 +0000
committerGreg Kroah-Hartman <gregkh@suse.de>2011-08-08 10:23:18 -0700
commit35ed3d0fb62804090a3f21a7ce84c538a6ff852f (patch)
tree9caad9774844e1e5c6a193aac1257ed8f4ad325e
parent0515423344552278c1c3c5304515088521c73478 (diff)
tunnels: fix netns vs proto registration ordering
commit d5aa407f59f5b83d2c50ec88f5bf56d40f1f8978 upstream. Same stuff as in ip_gre patch: receive hook can be called before netns setup is done, oopsing in net_generic(). Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--net/ipv4/ipip.c13
-rw-r--r--net/ipv6/ip6_tunnel.c28
-rw-r--r--net/ipv6/sit.c13
-rw-r--r--net/ipv6/xfrm6_tunnel.c22
4 files changed, 38 insertions, 38 deletions
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index f37df1a46a49..860b5c5d88a2 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -830,15 +830,14 @@ static int __init ipip_init(void)
printk(banner);
- if (xfrm4_tunnel_register(&ipip_handler, AF_INET)) {
+ err = register_pernet_gen_device(&ipip_net_id, &ipip_net_ops);
+ if (err < 0)
+ return err;
+ err = xfrm4_tunnel_register(&ipip_handler, AF_INET);
+ if (err < 0) {
+ unregister_pernet_device(&ipip_net_ops);
printk(KERN_INFO "ipip init: can't register tunnel\n");
- return -EAGAIN;
}
-
- err = register_pernet_gen_device(&ipip_net_id, &ipip_net_ops);
- if (err)
- xfrm4_tunnel_deregister(&ipip_handler, AF_INET);
-
return err;
}
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 9a95c825bd10..7fb3e02ef2ad 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -1466,27 +1466,29 @@ static int __init ip6_tunnel_init(void)
{
int err;
- if (xfrm6_tunnel_register(&ip4ip6_handler, AF_INET)) {
+ err = register_pernet_device(&ip6_tnl_net_ops);
+ if (err < 0)
+ goto out_pernet;
+
+ err = xfrm6_tunnel_register(&ip4ip6_handler, AF_INET);
+ if (err < 0) {
printk(KERN_ERR "ip6_tunnel init: can't register ip4ip6\n");
- err = -EAGAIN;
- goto out;
+ goto out_ip4ip6;
}
- if (xfrm6_tunnel_register(&ip6ip6_handler, AF_INET6)) {
+ err = xfrm6_tunnel_register(&ip6ip6_handler, AF_INET6);
+ if (err < 0) {
printk(KERN_ERR "ip6_tunnel init: can't register ip6ip6\n");
- err = -EAGAIN;
- goto unreg_ip4ip6;
+ goto out_ip6ip6;
}
- err = register_pernet_gen_device(&ip6_tnl_net_id, &ip6_tnl_net_ops);
- if (err < 0)
- goto err_pernet;
return 0;
-err_pernet:
- xfrm6_tunnel_deregister(&ip6ip6_handler, AF_INET6);
-unreg_ip4ip6:
+
+out_ip6ip6:
xfrm6_tunnel_deregister(&ip4ip6_handler, AF_INET);
-out:
+out_ip4ip6:
+ unregister_pernet_device(&ip6_tnl_net_ops);
+out_pernet:
return err;
}
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index de2ffefc7913..b128c07383bd 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -1086,15 +1086,14 @@ static int __init sit_init(void)
printk(KERN_INFO "IPv6 over IPv4 tunneling driver\n");
- if (xfrm4_tunnel_register(&sit_handler, AF_INET6) < 0) {
- printk(KERN_INFO "sit init: Can't add protocol\n");
- return -EAGAIN;
- }
-
err = register_pernet_gen_device(&sit_net_id, &sit_net_ops);
if (err < 0)
- xfrm4_tunnel_deregister(&sit_handler, AF_INET6);
-
+ return err;
+ err = xfrm4_tunnel_register(&sit_handler, AF_INET6);
+ if (err < 0) {
+ unregister_pernet_device(&sit_net_ops);
+ printk(KERN_INFO "sit init: Can't add protocol\n");
+ }
return err;
}
diff --git a/net/ipv6/xfrm6_tunnel.c b/net/ipv6/xfrm6_tunnel.c
index 473f8793ea2c..48bb1e301d49 100644
--- a/net/ipv6/xfrm6_tunnel.c
+++ b/net/ipv6/xfrm6_tunnel.c
@@ -346,36 +346,36 @@ static int __init xfrm6_tunnel_init(void)
{
int rv;
- rv = xfrm_register_type(&xfrm6_tunnel_type, AF_INET6);
+ rv = xfrm6_tunnel_spi_init();
if (rv < 0)
goto err;
+ rv = xfrm_register_type(&xfrm6_tunnel_type, AF_INET6);
+ if (rv < 0)
+ goto out_type;
rv = xfrm6_tunnel_register(&xfrm6_tunnel_handler, AF_INET6);
if (rv < 0)
- goto unreg;
+ goto out_xfrm6;
rv = xfrm6_tunnel_register(&xfrm46_tunnel_handler, AF_INET);
if (rv < 0)
- goto dereg6;
- rv = xfrm6_tunnel_spi_init();
- if (rv < 0)
- goto dereg46;
+ goto out_xfrm46;
return 0;
-dereg46:
- xfrm6_tunnel_deregister(&xfrm46_tunnel_handler, AF_INET);
-dereg6:
+out_xfrm46:
xfrm6_tunnel_deregister(&xfrm6_tunnel_handler, AF_INET6);
-unreg:
+out_xfrm6:
xfrm_unregister_type(&xfrm6_tunnel_type, AF_INET6);
+out_type:
+ xfrm6_tunnel_spi_fini();
err:
return rv;
}
static void __exit xfrm6_tunnel_fini(void)
{
- xfrm6_tunnel_spi_fini();
xfrm6_tunnel_deregister(&xfrm46_tunnel_handler, AF_INET);
xfrm6_tunnel_deregister(&xfrm6_tunnel_handler, AF_INET6);
xfrm_unregister_type(&xfrm6_tunnel_type, AF_INET6);
+ xfrm6_tunnel_spi_fini();
}
module_init(xfrm6_tunnel_init);