2 * PF_INET6 socket protocol family
3 * Linux INET6 implementation
6 * Pedro Roque <roque@di.fc.ul.pt>
8 * Adapted from linux/net/ipv4/af_inet.c
10 * $Id: af_inet6.c,v 1.66 2002/02/01 22:01:04 davem Exp $
13 * piggy, Karl Knutson : Socket protocol table
14 * Hideaki YOSHIFUJI : sin6_scope_id support
15 * Arnaldo Melo : check proc_net_create return, cleanups
17 * This program is free software; you can redistribute it and/or
18 * modify it under the terms of the GNU General Public License
19 * as published by the Free Software Foundation; either version
20 * 2 of the License, or (at your option) any later version.
24 #include <linux/module.h>
25 #include <linux/capability.h>
26 #include <linux/errno.h>
27 #include <linux/types.h>
28 #include <linux/socket.h>
30 #include <linux/kernel.h>
31 #include <linux/timer.h>
32 #include <linux/string.h>
33 #include <linux/sockios.h>
34 #include <linux/net.h>
35 #include <linux/fcntl.h>
37 #include <linux/interrupt.h>
38 #include <linux/proc_fs.h>
39 #include <linux/stat.h>
40 #include <linux/init.h>
42 #include <linux/inet.h>
43 #include <linux/netdevice.h>
44 #include <linux/icmpv6.h>
45 #include <linux/smp_lock.h>
46 #include <linux/netfilter_ipv6.h>
51 #include <net/udplite.h>
54 #include <net/protocol.h>
55 #include <net/inet_common.h>
56 #include <net/transp_v6.h>
57 #include <net/ip6_route.h>
58 #include <net/addrconf.h>
59 #ifdef CONFIG_IPV6_TUNNEL
60 #include <net/ip6_tunnel.h>
62 #ifdef CONFIG_IPV6_MIP6
66 #include <asm/uaccess.h>
67 #include <asm/system.h>
69 MODULE_AUTHOR("Cast of dozens");
70 MODULE_DESCRIPTION("IPv6 protocol stack for Linux");
71 MODULE_LICENSE("GPL");
73 int sysctl_ipv6_bindv6only __read_mostly
;
75 /* The inetsw table contains everything that inet_create needs to
78 static struct list_head inetsw6
[SOCK_MAX
];
79 static DEFINE_SPINLOCK(inetsw6_lock
);
81 static __inline__
struct ipv6_pinfo
*inet6_sk_generic(struct sock
*sk
)
83 const int offset
= sk
->sk_prot
->obj_size
- sizeof(struct ipv6_pinfo
);
85 return (struct ipv6_pinfo
*)(((u8
*)sk
) + offset
);
88 static int inet6_create(struct socket
*sock
, int protocol
)
90 struct inet_sock
*inet
;
91 struct ipv6_pinfo
*np
;
94 struct inet_protosw
*answer
;
95 struct proto
*answer_prot
;
96 unsigned char answer_flags
;
98 int try_loading_module
= 0;
101 /* Look for the requested type/protocol pair. */
104 err
= -ESOCKTNOSUPPORT
;
106 list_for_each_rcu(p
, &inetsw6
[sock
->type
]) {
107 answer
= list_entry(p
, struct inet_protosw
, list
);
109 /* Check the non-wild match. */
110 if (protocol
== answer
->protocol
) {
111 if (protocol
!= IPPROTO_IP
)
114 /* Check for the two wild cases. */
115 if (IPPROTO_IP
== protocol
) {
116 protocol
= answer
->protocol
;
119 if (IPPROTO_IP
== answer
->protocol
)
122 err
= -EPROTONOSUPPORT
;
127 if (try_loading_module
< 2) {
130 * Be more specific, e.g. net-pf-10-proto-132-type-1
131 * (net-pf-PF_INET6-proto-IPPROTO_SCTP-type-SOCK_STREAM)
133 if (++try_loading_module
== 1)
134 request_module("net-pf-%d-proto-%d-type-%d",
135 PF_INET6
, protocol
, sock
->type
);
137 * Fall back to generic, e.g. net-pf-10-proto-132
138 * (net-pf-PF_INET6-proto-IPPROTO_SCTP)
141 request_module("net-pf-%d-proto-%d",
143 goto lookup_protocol
;
149 if (answer
->capability
> 0 && !capable(answer
->capability
))
152 sock
->ops
= answer
->ops
;
153 answer_prot
= answer
->prot
;
154 answer_no_check
= answer
->no_check
;
155 answer_flags
= answer
->flags
;
158 BUG_TRAP(answer_prot
->slab
!= NULL
);
161 sk
= sk_alloc(PF_INET6
, GFP_KERNEL
, answer_prot
, 1);
165 sock_init_data(sock
, sk
);
168 sk
->sk_no_check
= answer_no_check
;
169 if (INET_PROTOSW_REUSE
& answer_flags
)
173 inet
->is_icsk
= (INET_PROTOSW_ICSK
& answer_flags
) != 0;
175 if (SOCK_RAW
== sock
->type
) {
176 inet
->num
= protocol
;
177 if (IPPROTO_RAW
== protocol
)
181 sk
->sk_destruct
= inet_sock_destruct
;
182 sk
->sk_family
= PF_INET6
;
183 sk
->sk_protocol
= protocol
;
185 sk
->sk_backlog_rcv
= answer
->prot
->backlog_rcv
;
187 inet_sk(sk
)->pinet6
= np
= inet6_sk_generic(sk
);
191 np
->pmtudisc
= IPV6_PMTUDISC_WANT
;
192 np
->ipv6only
= sysctl_ipv6_bindv6only
;
194 /* Init the ipv4 part of the socket since we can have sockets
195 * using v6 API for ipv4.
202 inet
->mc_list
= NULL
;
204 if (ipv4_config
.no_pmtu_disc
)
205 inet
->pmtudisc
= IP_PMTUDISC_DONT
;
207 inet
->pmtudisc
= IP_PMTUDISC_WANT
;
209 * Increment only the relevant sk_prot->socks debug field, this changes
210 * the previous behaviour of incrementing both the equivalent to
211 * answer->prot->socks (inet6_sock_nr) and inet_sock_nr.
213 * This allows better debug granularity as we'll know exactly how many
214 * UDPv6, TCPv6, etc socks were allocated, not the sum of all IPv6
215 * transport protocol socks. -acme
217 sk_refcnt_debug_inc(sk
);
220 /* It assumes that any protocol which allows
221 * the user to assign a number at socket
222 * creation time automatically shares.
224 inet
->sport
= htons(inet
->num
);
225 sk
->sk_prot
->hash(sk
);
227 if (sk
->sk_prot
->init
) {
228 err
= sk
->sk_prot
->init(sk
);
230 sk_common_release(sk
);
242 /* bind for INET6 API */
243 int inet6_bind(struct socket
*sock
, struct sockaddr
*uaddr
, int addr_len
)
245 struct sockaddr_in6
*addr
=(struct sockaddr_in6
*)uaddr
;
246 struct sock
*sk
= sock
->sk
;
247 struct inet_sock
*inet
= inet_sk(sk
);
248 struct ipv6_pinfo
*np
= inet6_sk(sk
);
254 /* If the socket has its own bind function then use it. */
255 if (sk
->sk_prot
->bind
)
256 return sk
->sk_prot
->bind(sk
, uaddr
, addr_len
);
258 if (addr_len
< SIN6_LEN_RFC2133
)
260 addr_type
= ipv6_addr_type(&addr
->sin6_addr
);
261 if ((addr_type
& IPV6_ADDR_MULTICAST
) && sock
->type
== SOCK_STREAM
)
264 snum
= ntohs(addr
->sin6_port
);
265 if (snum
&& snum
< PROT_SOCK
&& !capable(CAP_NET_BIND_SERVICE
))
270 /* Check these errors (active socket, double bind). */
271 if (sk
->sk_state
!= TCP_CLOSE
|| inet
->num
) {
276 /* Check if the address belongs to the host. */
277 if (addr_type
== IPV6_ADDR_MAPPED
) {
278 v4addr
= addr
->sin6_addr
.s6_addr32
[3];
279 if (inet_addr_type(v4addr
) != RTN_LOCAL
) {
280 err
= -EADDRNOTAVAIL
;
284 if (addr_type
!= IPV6_ADDR_ANY
) {
285 struct net_device
*dev
= NULL
;
287 if (addr_type
& IPV6_ADDR_LINKLOCAL
) {
288 if (addr_len
>= sizeof(struct sockaddr_in6
) &&
289 addr
->sin6_scope_id
) {
290 /* Override any existing binding, if another one
291 * is supplied by user.
293 sk
->sk_bound_dev_if
= addr
->sin6_scope_id
;
296 /* Binding to link-local address requires an interface */
297 if (!sk
->sk_bound_dev_if
) {
301 dev
= dev_get_by_index(sk
->sk_bound_dev_if
);
308 /* ipv4 addr of the socket is invalid. Only the
309 * unspecified and mapped address have a v4 equivalent.
311 v4addr
= LOOPBACK4_IPV6
;
312 if (!(addr_type
& IPV6_ADDR_MULTICAST
)) {
313 if (!ipv6_chk_addr(&addr
->sin6_addr
, dev
, 0)) {
316 err
= -EADDRNOTAVAIL
;
325 inet
->rcv_saddr
= v4addr
;
326 inet
->saddr
= v4addr
;
328 ipv6_addr_copy(&np
->rcv_saddr
, &addr
->sin6_addr
);
330 if (!(addr_type
& IPV6_ADDR_MULTICAST
))
331 ipv6_addr_copy(&np
->saddr
, &addr
->sin6_addr
);
333 /* Make sure we are allowed to bind here. */
334 if (sk
->sk_prot
->get_port(sk
, snum
)) {
335 inet_reset_saddr(sk
);
340 if (addr_type
!= IPV6_ADDR_ANY
)
341 sk
->sk_userlocks
|= SOCK_BINDADDR_LOCK
;
343 sk
->sk_userlocks
|= SOCK_BINDPORT_LOCK
;
344 inet
->sport
= htons(inet
->num
);
352 EXPORT_SYMBOL(inet6_bind
);
354 int inet6_release(struct socket
*sock
)
356 struct sock
*sk
= sock
->sk
;
362 ipv6_sock_mc_close(sk
);
365 ipv6_sock_ac_close(sk
);
367 return inet_release(sock
);
370 EXPORT_SYMBOL(inet6_release
);
372 int inet6_destroy_sock(struct sock
*sk
)
374 struct ipv6_pinfo
*np
= inet6_sk(sk
);
376 struct ipv6_txoptions
*opt
;
378 /* Release rx options */
380 if ((skb
= xchg(&np
->pktoptions
, NULL
)) != NULL
)
383 /* Free flowlabels */
384 fl6_free_socklist(sk
);
386 /* Free tx options */
388 if ((opt
= xchg(&np
->opt
, NULL
)) != NULL
)
389 sock_kfree_s(sk
, opt
, opt
->tot_len
);
394 EXPORT_SYMBOL_GPL(inet6_destroy_sock
);
397 * This does both peername and sockname.
400 int inet6_getname(struct socket
*sock
, struct sockaddr
*uaddr
,
401 int *uaddr_len
, int peer
)
403 struct sockaddr_in6
*sin
=(struct sockaddr_in6
*)uaddr
;
404 struct sock
*sk
= sock
->sk
;
405 struct inet_sock
*inet
= inet_sk(sk
);
406 struct ipv6_pinfo
*np
= inet6_sk(sk
);
408 sin
->sin6_family
= AF_INET6
;
409 sin
->sin6_flowinfo
= 0;
410 sin
->sin6_scope_id
= 0;
414 if (((1 << sk
->sk_state
) & (TCPF_CLOSE
| TCPF_SYN_SENT
)) &&
417 sin
->sin6_port
= inet
->dport
;
418 ipv6_addr_copy(&sin
->sin6_addr
, &np
->daddr
);
420 sin
->sin6_flowinfo
= np
->flow_label
;
422 if (ipv6_addr_any(&np
->rcv_saddr
))
423 ipv6_addr_copy(&sin
->sin6_addr
, &np
->saddr
);
425 ipv6_addr_copy(&sin
->sin6_addr
, &np
->rcv_saddr
);
427 sin
->sin6_port
= inet
->sport
;
429 if (ipv6_addr_type(&sin
->sin6_addr
) & IPV6_ADDR_LINKLOCAL
)
430 sin
->sin6_scope_id
= sk
->sk_bound_dev_if
;
431 *uaddr_len
= sizeof(*sin
);
435 EXPORT_SYMBOL(inet6_getname
);
437 int inet6_ioctl(struct socket
*sock
, unsigned int cmd
, unsigned long arg
)
439 struct sock
*sk
= sock
->sk
;
444 return sock_get_timestamp(sk
, (struct timeval __user
*)arg
);
449 return(ipv6_route_ioctl(cmd
,(void __user
*)arg
));
452 return addrconf_add_ifaddr((void __user
*) arg
);
454 return addrconf_del_ifaddr((void __user
*) arg
);
456 return addrconf_set_dstaddr((void __user
*) arg
);
458 if (!sk
->sk_prot
->ioctl
)
460 return sk
->sk_prot
->ioctl(sk
, cmd
, arg
);
466 EXPORT_SYMBOL(inet6_ioctl
);
468 const struct proto_ops inet6_stream_ops
= {
470 .owner
= THIS_MODULE
,
471 .release
= inet6_release
,
473 .connect
= inet_stream_connect
, /* ok */
474 .socketpair
= sock_no_socketpair
, /* a do nothing */
475 .accept
= inet_accept
, /* ok */
476 .getname
= inet6_getname
,
477 .poll
= tcp_poll
, /* ok */
478 .ioctl
= inet6_ioctl
, /* must change */
479 .listen
= inet_listen
, /* ok */
480 .shutdown
= inet_shutdown
, /* ok */
481 .setsockopt
= sock_common_setsockopt
, /* ok */
482 .getsockopt
= sock_common_getsockopt
, /* ok */
483 .sendmsg
= inet_sendmsg
, /* ok */
484 .recvmsg
= sock_common_recvmsg
, /* ok */
485 .mmap
= sock_no_mmap
,
486 .sendpage
= tcp_sendpage
,
488 .compat_setsockopt
= compat_sock_common_setsockopt
,
489 .compat_getsockopt
= compat_sock_common_getsockopt
,
493 const struct proto_ops inet6_dgram_ops
= {
495 .owner
= THIS_MODULE
,
496 .release
= inet6_release
,
498 .connect
= inet_dgram_connect
, /* ok */
499 .socketpair
= sock_no_socketpair
, /* a do nothing */
500 .accept
= sock_no_accept
, /* a do nothing */
501 .getname
= inet6_getname
,
502 .poll
= udp_poll
, /* ok */
503 .ioctl
= inet6_ioctl
, /* must change */
504 .listen
= sock_no_listen
, /* ok */
505 .shutdown
= inet_shutdown
, /* ok */
506 .setsockopt
= sock_common_setsockopt
, /* ok */
507 .getsockopt
= sock_common_getsockopt
, /* ok */
508 .sendmsg
= inet_sendmsg
, /* ok */
509 .recvmsg
= sock_common_recvmsg
, /* ok */
510 .mmap
= sock_no_mmap
,
511 .sendpage
= sock_no_sendpage
,
513 .compat_setsockopt
= compat_sock_common_setsockopt
,
514 .compat_getsockopt
= compat_sock_common_getsockopt
,
518 static struct net_proto_family inet6_family_ops
= {
520 .create
= inet6_create
,
521 .owner
= THIS_MODULE
,
524 /* Same as inet6_dgram_ops, sans udp_poll. */
525 static const struct proto_ops inet6_sockraw_ops
= {
527 .owner
= THIS_MODULE
,
528 .release
= inet6_release
,
530 .connect
= inet_dgram_connect
, /* ok */
531 .socketpair
= sock_no_socketpair
, /* a do nothing */
532 .accept
= sock_no_accept
, /* a do nothing */
533 .getname
= inet6_getname
,
534 .poll
= datagram_poll
, /* ok */
535 .ioctl
= inet6_ioctl
, /* must change */
536 .listen
= sock_no_listen
, /* ok */
537 .shutdown
= inet_shutdown
, /* ok */
538 .setsockopt
= sock_common_setsockopt
, /* ok */
539 .getsockopt
= sock_common_getsockopt
, /* ok */
540 .sendmsg
= inet_sendmsg
, /* ok */
541 .recvmsg
= sock_common_recvmsg
, /* ok */
542 .mmap
= sock_no_mmap
,
543 .sendpage
= sock_no_sendpage
,
545 .compat_setsockopt
= compat_sock_common_setsockopt
,
546 .compat_getsockopt
= compat_sock_common_getsockopt
,
550 static struct inet_protosw rawv6_protosw
= {
552 .protocol
= IPPROTO_IP
, /* wild card */
554 .ops
= &inet6_sockraw_ops
,
555 .capability
= CAP_NET_RAW
,
556 .no_check
= UDP_CSUM_DEFAULT
,
557 .flags
= INET_PROTOSW_REUSE
,
561 inet6_register_protosw(struct inet_protosw
*p
)
563 struct list_head
*lh
;
564 struct inet_protosw
*answer
;
565 int protocol
= p
->protocol
;
566 struct list_head
*last_perm
;
568 spin_lock_bh(&inetsw6_lock
);
570 if (p
->type
>= SOCK_MAX
)
573 /* If we are trying to override a permanent protocol, bail. */
575 last_perm
= &inetsw6
[p
->type
];
576 list_for_each(lh
, &inetsw6
[p
->type
]) {
577 answer
= list_entry(lh
, struct inet_protosw
, list
);
579 /* Check only the non-wild match. */
580 if (INET_PROTOSW_PERMANENT
& answer
->flags
) {
581 if (protocol
== answer
->protocol
)
591 /* Add the new entry after the last permanent entry if any, so that
592 * the new entry does not override a permanent entry when matched with
593 * a wild-card protocol. But it is allowed to override any existing
594 * non-permanent entry. This means that when we remove this entry, the
595 * system automatically returns to the old behavior.
597 list_add_rcu(&p
->list
, last_perm
);
599 spin_unlock_bh(&inetsw6_lock
);
603 printk(KERN_ERR
"Attempt to override permanent protocol %d.\n",
609 "Ignoring attempt to register invalid socket type %d.\n",
614 EXPORT_SYMBOL(inet6_register_protosw
);
617 inet6_unregister_protosw(struct inet_protosw
*p
)
619 if (INET_PROTOSW_PERMANENT
& p
->flags
) {
621 "Attempt to unregister permanent protocol %d.\n",
624 spin_lock_bh(&inetsw6_lock
);
625 list_del_rcu(&p
->list
);
626 spin_unlock_bh(&inetsw6_lock
);
632 EXPORT_SYMBOL(inet6_unregister_protosw
);
634 int inet6_sk_rebuild_header(struct sock
*sk
)
637 struct dst_entry
*dst
;
638 struct ipv6_pinfo
*np
= inet6_sk(sk
);
640 dst
= __sk_dst_check(sk
, np
->dst_cookie
);
643 struct inet_sock
*inet
= inet_sk(sk
);
644 struct in6_addr
*final_p
= NULL
, final
;
647 memset(&fl
, 0, sizeof(fl
));
648 fl
.proto
= sk
->sk_protocol
;
649 ipv6_addr_copy(&fl
.fl6_dst
, &np
->daddr
);
650 ipv6_addr_copy(&fl
.fl6_src
, &np
->saddr
);
651 fl
.fl6_flowlabel
= np
->flow_label
;
652 fl
.oif
= sk
->sk_bound_dev_if
;
653 fl
.fl_ip_dport
= inet
->dport
;
654 fl
.fl_ip_sport
= inet
->sport
;
655 security_sk_classify_flow(sk
, &fl
);
657 if (np
->opt
&& np
->opt
->srcrt
) {
658 struct rt0_hdr
*rt0
= (struct rt0_hdr
*) np
->opt
->srcrt
;
659 ipv6_addr_copy(&final
, &fl
.fl6_dst
);
660 ipv6_addr_copy(&fl
.fl6_dst
, rt0
->addr
);
664 err
= ip6_dst_lookup(sk
, &dst
, &fl
);
666 sk
->sk_route_caps
= 0;
670 ipv6_addr_copy(&fl
.fl6_dst
, final_p
);
672 if ((err
= xfrm_lookup(&dst
, &fl
, sk
, 0)) < 0) {
673 sk
->sk_err_soft
= -err
;
677 __ip6_dst_store(sk
, dst
, NULL
, NULL
);
683 EXPORT_SYMBOL_GPL(inet6_sk_rebuild_header
);
685 int ipv6_opt_accepted(struct sock
*sk
, struct sk_buff
*skb
)
687 struct ipv6_pinfo
*np
= inet6_sk(sk
);
688 struct inet6_skb_parm
*opt
= IP6CB(skb
);
691 if ((opt
->hop
&& (np
->rxopt
.bits
.hopopts
||
692 np
->rxopt
.bits
.ohopopts
)) ||
693 ((IPV6_FLOWINFO_MASK
& *(__be32
*)skb
->nh
.raw
) &&
694 np
->rxopt
.bits
.rxflow
) ||
695 (opt
->srcrt
&& (np
->rxopt
.bits
.srcrt
||
696 np
->rxopt
.bits
.osrcrt
)) ||
697 ((opt
->dst1
|| opt
->dst0
) &&
698 (np
->rxopt
.bits
.dstopts
|| np
->rxopt
.bits
.odstopts
)))
704 EXPORT_SYMBOL_GPL(ipv6_opt_accepted
);
707 snmp6_mib_init(void *ptr
[2], size_t mibsize
, size_t mibalign
)
712 ptr
[0] = __alloc_percpu(mibsize
);
716 ptr
[1] = __alloc_percpu(mibsize
);
730 snmp6_mib_free(void *ptr
[2])
736 ptr
[0] = ptr
[1] = NULL
;
739 static int __init
init_ipv6_mibs(void)
741 if (snmp6_mib_init((void **)ipv6_statistics
, sizeof (struct ipstats_mib
),
742 __alignof__(struct ipstats_mib
)) < 0)
744 if (snmp6_mib_init((void **)icmpv6_statistics
, sizeof (struct icmpv6_mib
),
745 __alignof__(struct icmpv6_mib
)) < 0)
747 if (snmp6_mib_init((void **)udp_stats_in6
, sizeof (struct udp_mib
),
748 __alignof__(struct udp_mib
)) < 0)
750 if (snmp6_mib_init((void **)udplite_stats_in6
, sizeof (struct udp_mib
),
751 __alignof__(struct udp_mib
)) < 0)
752 goto err_udplite_mib
;
756 snmp6_mib_free((void **)udp_stats_in6
);
758 snmp6_mib_free((void **)icmpv6_statistics
);
760 snmp6_mib_free((void **)ipv6_statistics
);
766 static void cleanup_ipv6_mibs(void)
768 snmp6_mib_free((void **)ipv6_statistics
);
769 snmp6_mib_free((void **)icmpv6_statistics
);
770 snmp6_mib_free((void **)udp_stats_in6
);
771 snmp6_mib_free((void **)udplite_stats_in6
);
774 static int __init
inet6_init(void)
776 struct sk_buff
*dummy_skb
;
780 BUILD_BUG_ON(sizeof(struct inet6_skb_parm
) > sizeof(dummy_skb
->cb
));
783 #if 0 /* FIXME --RR */
784 if (!mod_member_present(&__this_module
, can_unload
))
787 __this_module
.can_unload
= &ipv6_unload
;
791 err
= proto_register(&tcpv6_prot
, 1);
795 err
= proto_register(&udpv6_prot
, 1);
797 goto out_unregister_tcp_proto
;
799 err
= proto_register(&udplitev6_prot
, 1);
801 goto out_unregister_udp_proto
;
803 err
= proto_register(&rawv6_prot
, 1);
805 goto out_unregister_udplite_proto
;
808 /* Register the socket-side information for inet6_create. */
809 for(r
= &inetsw6
[0]; r
< &inetsw6
[SOCK_MAX
]; ++r
)
812 /* We MUST register RAW sockets before we create the ICMP6,
813 * IGMP6, or NDISC control sockets.
815 inet6_register_protosw(&rawv6_protosw
);
817 /* Register the family here so that the init calls below will
818 * be able to create sockets. (?? is this dangerous ??)
820 err
= sock_register(&inet6_family_ops
);
822 goto out_unregister_raw_proto
;
824 /* Initialise ipv6 mibs */
825 err
= init_ipv6_mibs();
827 goto out_unregister_sock
;
830 * ipngwg API draft makes clear that the correct semantics
831 * for TCP and UDP is to consider one TCP and UDP instance
832 * in a host availiable by both INET and INET6 APIs and
833 * able to communicate via both network protocols.
837 ipv6_sysctl_register();
839 err
= icmpv6_init(&inet6_family_ops
);
842 err
= ndisc_init(&inet6_family_ops
);
845 err
= igmp6_init(&inet6_family_ops
);
848 err
= ipv6_netfilter_init();
851 /* Create /proc/foo6 entries. */
852 #ifdef CONFIG_PROC_FS
854 if (raw6_proc_init())
856 if (tcp6_proc_init())
858 if (udp6_proc_init())
860 if (udplite6_proc_init())
861 goto proc_udplite6_fail
;
862 if (ipv6_misc_proc_init())
863 goto proc_misc6_fail
;
866 goto proc_anycast6_fail
;
871 ip6_flowlabel_init();
872 err
= addrconf_init();
876 /* Init v6 extension headers. */
881 #ifdef CONFIG_IPV6_MIP6
885 /* Init v6 transport protocols. */
896 ip6_flowlabel_cleanup();
898 #ifdef CONFIG_PROC_FS
903 ipv6_misc_proc_exit();
905 udplite6_proc_exit();
914 ipv6_netfilter_fini();
923 ipv6_sysctl_unregister();
927 sock_unregister(PF_INET6
);
928 out_unregister_raw_proto
:
929 proto_unregister(&rawv6_prot
);
930 out_unregister_udplite_proto
:
931 proto_unregister(&udplitev6_prot
);
932 out_unregister_udp_proto
:
933 proto_unregister(&udpv6_prot
);
934 out_unregister_tcp_proto
:
935 proto_unregister(&tcpv6_prot
);
938 module_init(inet6_init
);
940 static void __exit
inet6_exit(void)
942 /* First of all disallow new sockets creation. */
943 sock_unregister(PF_INET6
);
945 /* Cleanup code parts. */
946 ipv6_packet_cleanup();
947 #ifdef CONFIG_IPV6_MIP6
951 ip6_flowlabel_cleanup();
953 #ifdef CONFIG_PROC_FS
955 /* Cleanup code parts. */
958 ipv6_misc_proc_exit();
959 udplite6_proc_exit();
964 ipv6_netfilter_fini();
969 ipv6_sysctl_unregister();
972 proto_unregister(&rawv6_prot
);
973 proto_unregister(&udplitev6_prot
);
974 proto_unregister(&udpv6_prot
);
975 proto_unregister(&tcpv6_prot
);
977 module_exit(inet6_exit
);
979 MODULE_ALIAS_NETPROTO(PF_INET6
);