diff options
author | Alexey Dobriyan <adobriyan@gmail.com> | 2010-02-16 09:05:04 +0000 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-08-08 10:23:18 -0700 |
commit | 35ed3d0fb62804090a3f21a7ce84c538a6ff852f (patch) | |
tree | 9caad9774844e1e5c6a193aac1257ed8f4ad325e | |
parent | 0515423344552278c1c3c5304515088521c73478 (diff) | |
download | lwn-35ed3d0fb62804090a3f21a7ce84c538a6ff852f.tar.gz lwn-35ed3d0fb62804090a3f21a7ce84c538a6ff852f.zip |
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.c | 13 | ||||
-rw-r--r-- | net/ipv6/ip6_tunnel.c | 28 | ||||
-rw-r--r-- | net/ipv6/sit.c | 13 | ||||
-rw-r--r-- | net/ipv6/xfrm6_tunnel.c | 22 |
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); |