static void inet6_exit(void)
{
/* First of all disallow new sockets creation. */
sock_unregister(PF_INET6);
#ifdef CONFIG_PROC_FS
proc_net_remove("raw6");
proc_net_remove("tcp6");
proc_net_remove("udp6");
proc_net_remove("sockstat6");
proc_net_remove("snmp6");
#endif
/* Cleanup code parts. */
sit_cleanup();
ipv6_netdev_notif_cleanup();
ip6_flowlabel_cleanup();
addrconf_cleanup();
ip6_route_cleanup();
ipv6_packet_cleanup();
igmp6_cleanup();
ndisc_cleanup();
icmpv6_cleanup();
#ifdef CONFIG_SYSCTL
ipv6_sysctl_unregister();
#endif
}
void cleanup_module(void)
{
/* First of all disallow new sockets creation. */
sock_unregister(PF_INET6);
#ifdef CONFIG_PROC_FS
proc_net_unregister(proc_net_raw6.low_ino);
proc_net_unregister(proc_net_tcp6.low_ino);
proc_net_unregister(proc_net_udp6.low_ino);
proc_net_unregister(proc_net_sockstat6.low_ino);
proc_net_unregister(proc_net_snmp6.low_ino);
#endif
/* Cleanup code parts. */
sit_cleanup();
ipv6_netdev_notif_cleanup();
ip6_flowlabel_cleanup();
addrconf_cleanup();
ip6_route_cleanup();
ipv6_packet_cleanup();
igmp6_cleanup();
ndisc_cleanup();
icmpv6_cleanup();
#ifdef CONFIG_SYSCTL
ipv6_sysctl_unregister();
#endif
}
static int __init inet6_init(void)
{
struct sk_buff *dummy_skb;
int err;
#ifdef MODULE
if (!mod_member_present(&__this_module, can_unload))
return -EINVAL;
__this_module.can_unload = &ipv6_unload;
#endif
printk(KERN_INFO "IPv6 v0.8 for NET4.0\n");
if (sizeof(struct inet6_skb_parm) > sizeof(dummy_skb->cb))
{
printk(KERN_CRIT "inet6_proto_init: size fault\n");
return -EINVAL;
}
/*
* ipngwg API draft makes clear that the correct semantics
* for TCP and UDP is to consider one TCP and UDP instance
* in a host availiable by both INET and INET6 APIs and
* able to communicate via both network protocols.
*/
#if defined(MODULE) && defined(CONFIG_SYSCTL)
ipv6_sysctl_register();
#endif
err = icmpv6_init(&inet6_family_ops);
if (err)
goto icmp_fail;
err = ndisc_init(&inet6_family_ops);
if (err)
goto ndisc_fail;
err = igmp6_init(&inet6_family_ops);
if (err)
goto igmp_fail;
/* Create /proc/foo6 entries. */
#ifdef CONFIG_PROC_FS
err = -ENOMEM;
if (!proc_net_create("raw6", 0, raw6_get_info))
goto proc_raw6_fail;
if (!proc_net_create("tcp6", 0, tcp6_get_info))
goto proc_tcp6_fail;
if (!proc_net_create("udp6", 0, udp6_get_info))
goto proc_udp6_fail;
if (!proc_net_create("sockstat6", 0, afinet6_get_info))
goto proc_sockstat6_fail;
if (!proc_net_create("snmp6", 0, afinet6_get_snmp))
goto proc_snmp6_fail;
#endif
ipv6_netdev_notif_init();
ipv6_packet_init();
ip6_route_init();
ip6_flowlabel_init();
addrconf_init();
sit_init();
/* Init v6 transport protocols. */
udpv6_init();
tcpv6_init();
/* Now the userspace is allowed to create INET6 sockets. */
(void) sock_register(&inet6_family_ops);
return 0;
#ifdef CONFIG_PROC_FS
proc_snmp6_fail:
proc_net_remove("sockstat6");
proc_sockstat6_fail:
proc_net_remove("udp6");
proc_udp6_fail:
proc_net_remove("tcp6");
proc_tcp6_fail:
proc_net_remove("raw6");
proc_raw6_fail:
igmp6_cleanup();
#endif
igmp_fail:
ndisc_cleanup();
ndisc_fail:
icmpv6_cleanup();
icmp_fail:
#if defined(MODULE) && defined(CONFIG_SYSCTL)
ipv6_sysctl_unregister();
#endif
return err;
}