static int __init ipip_init(void)
{
int err;
pr_info("ipip: IPv4 over IPv4 tunneling driver\n");
err = register_pernet_device(&ipip_net_ops);
if (err < 0)
return err;
err = xfrm4_tunnel_register(&ipip_handler, AF_INET);
if (err < 0) {
pr_info("%s: can't register tunnel\n", __func__);
goto xfrm_tunnel_failed;
}
err = rtnl_link_register(&ipip_link_ops);
if (err < 0)
goto rtnl_link_failed;
out:
return err;
rtnl_link_failed:
xfrm4_tunnel_deregister(&ipip_handler, AF_INET);
xfrm_tunnel_failed:
unregister_pernet_device(&ipip_net_ops);
goto out;
}
static int __init sit_init(void)
{
int err;
printk(KERN_INFO "stubl: IPv6 Stateless Tunnel Broker for LANs\n");
if (xfrm4_tunnel_register(&sit_handler, AF_INET6) < 0) {
printk(KERN_INFO "stubl init: Can't add protocol\n");
return -EAGAIN;
}
ipip6_fb_tunnel_dev = alloc_netdev(sizeof(struct ip_tunnel), "stubl0",
ipip6_tunnel_setup);
if (!ipip6_fb_tunnel_dev) {
err = -ENOMEM;
goto err1;
}
ipip6_fb_tunnel_dev->init = ipip6_fb_tunnel_init;
if ((err = register_netdev(ipip6_fb_tunnel_dev)))
goto err2;
out:
return err;
err2:
free_netdev(ipip6_fb_tunnel_dev);
err1:
xfrm4_tunnel_deregister(&sit_handler, AF_INET6);
goto out;
}
static int __init ipip_init(void)
{
if (xfrm_register_type(&ipip_type, AF_INET) < 0) {
printk(KERN_INFO "ipip init: can't add xfrm type\n");
return -EAGAIN;
}
if (xfrm4_tunnel_register(&xfrm_tunnel_handler)) {
printk(KERN_INFO "ipip init: can't add xfrm handler\n");
xfrm_unregister_type(&ipip_type, AF_INET);
return -EAGAIN;
}
return 0;
}
static int __init ipip_init(void)
{
if (xfrm_register_type(&ipip_type, AF_INET) < 0) {
printk(KERN_INFO "ipip init: can't add xfrm type\n");
return -EAGAIN;
}
if (xfrm4_tunnel_register(&xfrm_tunnel_handler, AF_INET)) {
printk(KERN_INFO "ipip init: can't add xfrm handler for AF_INET\n");
xfrm_unregister_type(&ipip_type, AF_INET);
return -EAGAIN;
}
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
if (xfrm4_tunnel_register(&xfrm64_tunnel_handler, AF_INET6)) {
printk(KERN_INFO "ipip init: can't add xfrm handler for AF_INET6\n");
xfrm4_tunnel_deregister(&xfrm_tunnel_handler, AF_INET);
xfrm_unregister_type(&ipip_type, AF_INET);
return -EAGAIN;
}
#endif
return 0;
}
static int __init ipip_init(void)
{
if (xfrm_register_type(&ipip_type, AF_INET) < 0) {
;
return -EAGAIN;
}
if (xfrm4_tunnel_register(&xfrm_tunnel_handler, AF_INET)) {
;
xfrm_unregister_type(&ipip_type, AF_INET);
return -EAGAIN;
}
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
if (xfrm4_tunnel_register(&xfrm64_tunnel_handler, AF_INET6)) {
;
xfrm4_tunnel_deregister(&xfrm_tunnel_handler, AF_INET);
xfrm_unregister_type(&ipip_type, AF_INET);
return -EAGAIN;
}
#endif
return 0;
}
static int __init ipip_init(void)
{
int err;
pr_info("ipip: IPv4 and MPLS over IPv4 tunneling driver\n");
err = register_pernet_device(&ipip_net_ops);
if (err < 0)
return err;
err = xfrm4_tunnel_register(&ipip_handler, AF_INET);
if (err < 0) {
pr_info("%s: can't register tunnel\n", __func__);
goto xfrm_tunnel_ipip_failed;
}
#if IS_ENABLED(CONFIG_MPLS)
err = xfrm4_tunnel_register(&mplsip_handler, AF_MPLS);
if (err < 0) {
pr_info("%s: can't register tunnel\n", __func__);
goto xfrm_tunnel_mplsip_failed;
}
#endif
err = rtnl_link_register(&ipip_link_ops);
if (err < 0)
goto rtnl_link_failed;
out:
return err;
rtnl_link_failed:
#if IS_ENABLED(CONFIG_MPLS)
xfrm4_tunnel_deregister(&mplsip_handler, AF_INET);
xfrm_tunnel_mplsip_failed:
#endif
xfrm4_tunnel_deregister(&ipip_handler, AF_INET);
xfrm_tunnel_ipip_failed:
unregister_pernet_device(&ipip_net_ops);
goto out;
}
static int __init vti_init(void)
{
const char *msg;
int err;
pr_info("IPv4 over IPsec tunneling driver\n");
msg = "tunnel device";
err = register_pernet_device(&vti_net_ops);
if (err < 0)
goto pernet_dev_failed;
msg = "tunnel protocols";
err = xfrm4_protocol_register(&vti_esp4_protocol, IPPROTO_ESP);
if (err < 0)
goto xfrm_proto_esp_failed;
err = xfrm4_protocol_register(&vti_ah4_protocol, IPPROTO_AH);
if (err < 0)
goto xfrm_proto_ah_failed;
err = xfrm4_protocol_register(&vti_ipcomp4_protocol, IPPROTO_COMP);
if (err < 0)
goto xfrm_proto_comp_failed;
msg = "ipip tunnel";
err = xfrm4_tunnel_register(&ipip_handler, AF_INET);
if (err < 0) {
pr_info("%s: cant't register tunnel\n",__func__);
goto xfrm_tunnel_failed;
}
msg = "netlink interface";
err = rtnl_link_register(&vti_link_ops);
if (err < 0)
goto rtnl_link_failed;
return err;
rtnl_link_failed:
xfrm4_protocol_deregister(&vti_ipcomp4_protocol, IPPROTO_COMP);
xfrm_tunnel_failed:
xfrm4_tunnel_deregister(&ipip_handler, AF_INET);
xfrm_proto_comp_failed:
xfrm4_protocol_deregister(&vti_ah4_protocol, IPPROTO_AH);
xfrm_proto_ah_failed:
xfrm4_protocol_deregister(&vti_esp4_protocol, IPPROTO_ESP);
xfrm_proto_esp_failed:
unregister_pernet_device(&vti_net_ops);
pernet_dev_failed:
pr_err("vti init: failed to register %s\n", msg);
return err;
}
static int __init sit_init(void)
{
int err;
printk(KERN_INFO "IPv6 over IPv4 tunneling driver\n");
err = register_pernet_gen_device(&sit_net_id, &sit_net_ops);
if (err < 0)
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;
}
static int __init sit_init(void)
{
int err;
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);
else
register_netdev_rst(&sit_netdev_rst);
return err;
}
