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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * PF_INET6 socket protocol family | |
1ab1457c | 3 | * Linux INET6 implementation |
1da177e4 LT |
4 | * |
5 | * Authors: | |
1ab1457c | 6 | * Pedro Roque <roque@di.fc.ul.pt> |
1da177e4 LT |
7 | * |
8 | * Adapted from linux/net/ipv4/af_inet.c | |
9 | * | |
67ba4152 | 10 | * Fixes: |
1da177e4 | 11 | * piggy, Karl Knutson : Socket protocol table |
67ba4152 IM |
12 | * Hideaki YOSHIFUJI : sin6_scope_id support |
13 | * Arnaldo Melo : check proc_net_create return, cleanups | |
1da177e4 LT |
14 | * |
15 | * This program is free software; you can redistribute it and/or | |
67ba4152 IM |
16 | * modify it under the terms of the GNU General Public License |
17 | * as published by the Free Software Foundation; either version | |
18 | * 2 of the License, or (at your option) any later version. | |
1da177e4 LT |
19 | */ |
20 | ||
f3213831 | 21 | #define pr_fmt(fmt) "IPv6: " fmt |
1da177e4 LT |
22 | |
23 | #include <linux/module.h> | |
4fc268d2 | 24 | #include <linux/capability.h> |
1da177e4 LT |
25 | #include <linux/errno.h> |
26 | #include <linux/types.h> | |
27 | #include <linux/socket.h> | |
28 | #include <linux/in.h> | |
29 | #include <linux/kernel.h> | |
1da177e4 LT |
30 | #include <linux/timer.h> |
31 | #include <linux/string.h> | |
32 | #include <linux/sockios.h> | |
33 | #include <linux/net.h> | |
34 | #include <linux/fcntl.h> | |
35 | #include <linux/mm.h> | |
36 | #include <linux/interrupt.h> | |
37 | #include <linux/proc_fs.h> | |
38 | #include <linux/stat.h> | |
39 | #include <linux/init.h> | |
5a0e3ad6 | 40 | #include <linux/slab.h> |
1da177e4 LT |
41 | |
42 | #include <linux/inet.h> | |
43 | #include <linux/netdevice.h> | |
44 | #include <linux/icmpv6.h> | |
2cc7d573 | 45 | #include <linux/netfilter_ipv6.h> |
1da177e4 LT |
46 | |
47 | #include <net/ip.h> | |
48 | #include <net/ipv6.h> | |
49 | #include <net/udp.h> | |
ba4e58ec | 50 | #include <net/udplite.h> |
1da177e4 | 51 | #include <net/tcp.h> |
6d0bfe22 | 52 | #include <net/ping.h> |
1da177e4 LT |
53 | #include <net/protocol.h> |
54 | #include <net/inet_common.h> | |
1668e010 | 55 | #include <net/route.h> |
1da177e4 LT |
56 | #include <net/transp_v6.h> |
57 | #include <net/ip6_route.h> | |
58 | #include <net/addrconf.h> | |
f564f45c | 59 | #include <net/ndisc.h> |
1da177e4 LT |
60 | #ifdef CONFIG_IPV6_TUNNEL |
61 | #include <net/ip6_tunnel.h> | |
62 | #endif | |
cb72d382 | 63 | #include <net/calipso.h> |
915d7e5e | 64 | #include <net/seg6.h> |
1da177e4 | 65 | |
7c0f6ba6 | 66 | #include <linux/uaccess.h> |
7bc570c8 | 67 | #include <linux/mroute6.h> |
1da177e4 | 68 | |
a6024562 TH |
69 | #include "ip6_offload.h" |
70 | ||
1da177e4 LT |
71 | MODULE_AUTHOR("Cast of dozens"); |
72 | MODULE_DESCRIPTION("IPv6 protocol stack for Linux"); | |
73 | MODULE_LICENSE("GPL"); | |
74 | ||
f1267347 | 75 | /* The inetsw6 table contains everything that inet6_create needs to |
1da177e4 LT |
76 | * build a new socket. |
77 | */ | |
78 | static struct list_head inetsw6[SOCK_MAX]; | |
79 | static DEFINE_SPINLOCK(inetsw6_lock); | |
80 | ||
56d417b1 BH |
81 | struct ipv6_params ipv6_defaults = { |
82 | .disable_ipv6 = 0, | |
83 | .autoconf = 1, | |
84 | }; | |
85 | ||
647c0c70 | 86 | static int disable_ipv6_mod; |
56d417b1 BH |
87 | |
88 | module_param_named(disable, disable_ipv6_mod, int, 0444); | |
89 | MODULE_PARM_DESC(disable, "Disable IPv6 module such that it is non-functional"); | |
90 | ||
91 | module_param_named(disable_ipv6, ipv6_defaults.disable_ipv6, int, 0444); | |
92 | MODULE_PARM_DESC(disable_ipv6, "Disable IPv6 on all interfaces"); | |
93 | ||
94 | module_param_named(autoconf, ipv6_defaults.autoconf, int, 0444); | |
95 | MODULE_PARM_DESC(autoconf, "Enable IPv6 address autoconfiguration on all interfaces"); | |
fe7ca2e1 | 96 | |
e4348637 DA |
97 | bool ipv6_mod_enabled(void) |
98 | { | |
99 | return disable_ipv6_mod == 0; | |
100 | } | |
101 | EXPORT_SYMBOL_GPL(ipv6_mod_enabled); | |
102 | ||
1da177e4 LT |
103 | static __inline__ struct ipv6_pinfo *inet6_sk_generic(struct sock *sk) |
104 | { | |
105 | const int offset = sk->sk_prot->obj_size - sizeof(struct ipv6_pinfo); | |
106 | ||
107 | return (struct ipv6_pinfo *)(((u8 *)sk) + offset); | |
108 | } | |
109 | ||
3f378b68 EP |
110 | static int inet6_create(struct net *net, struct socket *sock, int protocol, |
111 | int kern) | |
1da177e4 LT |
112 | { |
113 | struct inet_sock *inet; | |
114 | struct ipv6_pinfo *np; | |
115 | struct sock *sk; | |
1da177e4 LT |
116 | struct inet_protosw *answer; |
117 | struct proto *answer_prot; | |
118 | unsigned char answer_flags; | |
af1afe86 YH |
119 | int try_loading_module = 0; |
120 | int err; | |
1da177e4 | 121 | |
79462ad0 HFS |
122 | if (protocol < 0 || protocol >= IPPROTO_MAX) |
123 | return -EINVAL; | |
124 | ||
1da177e4 | 125 | /* Look for the requested type/protocol pair. */ |
af1afe86 YH |
126 | lookup_protocol: |
127 | err = -ESOCKTNOSUPPORT; | |
1da177e4 | 128 | rcu_read_lock(); |
696adfe8 | 129 | list_for_each_entry_rcu(answer, &inetsw6[sock->type], list) { |
1da177e4 | 130 | |
696adfe8 | 131 | err = 0; |
1da177e4 LT |
132 | /* Check the non-wild match. */ |
133 | if (protocol == answer->protocol) { | |
134 | if (protocol != IPPROTO_IP) | |
135 | break; | |
136 | } else { | |
137 | /* Check for the two wild cases. */ | |
138 | if (IPPROTO_IP == protocol) { | |
139 | protocol = answer->protocol; | |
140 | break; | |
141 | } | |
142 | if (IPPROTO_IP == answer->protocol) | |
143 | break; | |
144 | } | |
af1afe86 | 145 | err = -EPROTONOSUPPORT; |
1da177e4 LT |
146 | } |
147 | ||
696adfe8 | 148 | if (err) { |
af1afe86 YH |
149 | if (try_loading_module < 2) { |
150 | rcu_read_unlock(); | |
151 | /* | |
152 | * Be more specific, e.g. net-pf-10-proto-132-type-1 | |
153 | * (net-pf-PF_INET6-proto-IPPROTO_SCTP-type-SOCK_STREAM) | |
154 | */ | |
155 | if (++try_loading_module == 1) | |
156 | request_module("net-pf-%d-proto-%d-type-%d", | |
157 | PF_INET6, protocol, sock->type); | |
158 | /* | |
159 | * Fall back to generic, e.g. net-pf-10-proto-132 | |
160 | * (net-pf-PF_INET6-proto-IPPROTO_SCTP) | |
161 | */ | |
162 | else | |
163 | request_module("net-pf-%d-proto-%d", | |
164 | PF_INET6, protocol); | |
165 | goto lookup_protocol; | |
166 | } else | |
167 | goto out_rcu_unlock; | |
168 | } | |
169 | ||
170 | err = -EPERM; | |
af31f412 EB |
171 | if (sock->type == SOCK_RAW && !kern && |
172 | !ns_capable(net->user_ns, CAP_NET_RAW)) | |
1da177e4 | 173 | goto out_rcu_unlock; |
1da177e4 LT |
174 | |
175 | sock->ops = answer->ops; | |
1da177e4 | 176 | answer_prot = answer->prot; |
1da177e4 LT |
177 | answer_flags = answer->flags; |
178 | rcu_read_unlock(); | |
179 | ||
63159f29 | 180 | WARN_ON(!answer_prot->slab); |
1da177e4 | 181 | |
af1afe86 | 182 | err = -ENOBUFS; |
11aa9c28 | 183 | sk = sk_alloc(net, PF_INET6, GFP_KERNEL, answer_prot, kern); |
63159f29 | 184 | if (!sk) |
1da177e4 LT |
185 | goto out; |
186 | ||
187 | sock_init_data(sock, sk); | |
188 | ||
af1afe86 | 189 | err = 0; |
1da177e4 | 190 | if (INET_PROTOSW_REUSE & answer_flags) |
4a17fd52 | 191 | sk->sk_reuse = SK_CAN_REUSE; |
1da177e4 LT |
192 | |
193 | inet = inet_sk(sk); | |
469de9b9 | 194 | inet->is_icsk = (INET_PROTOSW_ICSK & answer_flags) != 0; |
1da177e4 LT |
195 | |
196 | if (SOCK_RAW == sock->type) { | |
c720c7e8 | 197 | inet->inet_num = protocol; |
1da177e4 LT |
198 | if (IPPROTO_RAW == protocol) |
199 | inet->hdrincl = 1; | |
200 | } | |
201 | ||
e6848976 | 202 | sk->sk_destruct = inet_sock_destruct; |
1da177e4 LT |
203 | sk->sk_family = PF_INET6; |
204 | sk->sk_protocol = protocol; | |
205 | ||
206 | sk->sk_backlog_rcv = answer->prot->backlog_rcv; | |
207 | ||
208 | inet_sk(sk)->pinet6 = np = inet6_sk_generic(sk); | |
209 | np->hop_limit = -1; | |
f935aa9e | 210 | np->mcast_hops = IPV6_DEFAULT_MCASTHOPS; |
1da177e4 LT |
211 | np->mc_loop = 1; |
212 | np->pmtudisc = IPV6_PMTUDISC_WANT; | |
42240901 | 213 | np->autoflowlabel = ip6_default_np_autolabel(sock_net(sk)); |
9fe516ba | 214 | sk->sk_ipv6only = net->ipv6.sysctl.bindv6only; |
1ab1457c | 215 | |
1da177e4 LT |
216 | /* Init the ipv4 part of the socket since we can have sockets |
217 | * using v6 API for ipv4. | |
218 | */ | |
219 | inet->uc_ttl = -1; | |
220 | ||
221 | inet->mc_loop = 1; | |
222 | inet->mc_ttl = 1; | |
223 | inet->mc_index = 0; | |
224 | inet->mc_list = NULL; | |
4c507d28 | 225 | inet->rcv_tos = 0; |
1da177e4 | 226 | |
974eda11 | 227 | if (net->ipv4.sysctl_ip_no_pmtu_disc) |
1da177e4 LT |
228 | inet->pmtudisc = IP_PMTUDISC_DONT; |
229 | else | |
230 | inet->pmtudisc = IP_PMTUDISC_WANT; | |
1ab1457c | 231 | /* |
e6848976 ACM |
232 | * Increment only the relevant sk_prot->socks debug field, this changes |
233 | * the previous behaviour of incrementing both the equivalent to | |
234 | * answer->prot->socks (inet6_sock_nr) and inet_sock_nr. | |
235 | * | |
236 | * This allows better debug granularity as we'll know exactly how many | |
237 | * UDPv6, TCPv6, etc socks were allocated, not the sum of all IPv6 | |
238 | * transport protocol socks. -acme | |
239 | */ | |
240 | sk_refcnt_debug_inc(sk); | |
1da177e4 | 241 | |
c720c7e8 | 242 | if (inet->inet_num) { |
1da177e4 LT |
243 | /* It assumes that any protocol which allows |
244 | * the user to assign a number at socket | |
245 | * creation time automatically shares. | |
246 | */ | |
c720c7e8 | 247 | inet->inet_sport = htons(inet->inet_num); |
086c653f CG |
248 | err = sk->sk_prot->hash(sk); |
249 | if (err) { | |
250 | sk_common_release(sk); | |
251 | goto out; | |
252 | } | |
1da177e4 LT |
253 | } |
254 | if (sk->sk_prot->init) { | |
af1afe86 YH |
255 | err = sk->sk_prot->init(sk); |
256 | if (err) { | |
1da177e4 LT |
257 | sk_common_release(sk); |
258 | goto out; | |
259 | } | |
260 | } | |
61023658 DA |
261 | |
262 | if (!kern) { | |
263 | err = BPF_CGROUP_RUN_PROG_INET_SOCK(sk); | |
264 | if (err) { | |
265 | sk_common_release(sk); | |
266 | goto out; | |
267 | } | |
268 | } | |
1da177e4 | 269 | out: |
af1afe86 | 270 | return err; |
1da177e4 LT |
271 | out_rcu_unlock: |
272 | rcu_read_unlock(); | |
273 | goto out; | |
274 | } | |
275 | ||
276 | ||
277 | /* bind for INET6 API */ | |
278 | int inet6_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) | |
279 | { | |
647c0c70 | 280 | struct sockaddr_in6 *addr = (struct sockaddr_in6 *)uaddr; |
1da177e4 LT |
281 | struct sock *sk = sock->sk; |
282 | struct inet_sock *inet = inet_sk(sk); | |
283 | struct ipv6_pinfo *np = inet6_sk(sk); | |
3b1e0a65 | 284 | struct net *net = sock_net(sk); |
fd683222 | 285 | __be32 v4addr = 0; |
1da177e4 LT |
286 | unsigned short snum; |
287 | int addr_type = 0; | |
288 | int err = 0; | |
289 | ||
290 | /* If the socket has its own bind function then use it. */ | |
291 | if (sk->sk_prot->bind) | |
292 | return sk->sk_prot->bind(sk, uaddr, addr_len); | |
293 | ||
294 | if (addr_len < SIN6_LEN_RFC2133) | |
295 | return -EINVAL; | |
5a079c30 MM |
296 | |
297 | if (addr->sin6_family != AF_INET6) | |
c349a528 | 298 | return -EAFNOSUPPORT; |
5a079c30 | 299 | |
1da177e4 LT |
300 | addr_type = ipv6_addr_type(&addr->sin6_addr); |
301 | if ((addr_type & IPV6_ADDR_MULTICAST) && sock->type == SOCK_STREAM) | |
302 | return -EINVAL; | |
303 | ||
304 | snum = ntohs(addr->sin6_port); | |
3594698a | 305 | if (snum && snum < PROT_SOCK && !ns_capable(net->user_ns, CAP_NET_BIND_SERVICE)) |
1da177e4 LT |
306 | return -EACCES; |
307 | ||
308 | lock_sock(sk); | |
309 | ||
310 | /* Check these errors (active socket, double bind). */ | |
c720c7e8 | 311 | if (sk->sk_state != TCP_CLOSE || inet->inet_num) { |
1da177e4 LT |
312 | err = -EINVAL; |
313 | goto out; | |
314 | } | |
315 | ||
316 | /* Check if the address belongs to the host. */ | |
317 | if (addr_type == IPV6_ADDR_MAPPED) { | |
63d9950b VY |
318 | int chk_addr_ret; |
319 | ||
783ed5a7 VY |
320 | /* Binding to v4-mapped address on a v6-only socket |
321 | * makes no sense | |
322 | */ | |
9fe516ba | 323 | if (sk->sk_ipv6only) { |
783ed5a7 VY |
324 | err = -EINVAL; |
325 | goto out; | |
326 | } | |
63d9950b | 327 | |
a34f0b31 | 328 | /* Reproduce AF_INET checks to make the bindings consistent */ |
1da177e4 | 329 | v4addr = addr->sin6_addr.s6_addr32[3]; |
63d9950b | 330 | chk_addr_ret = inet_addr_type(net, v4addr); |
49a60158 | 331 | if (!net->ipv4.sysctl_ip_nonlocal_bind && |
63d9950b VY |
332 | !(inet->freebind || inet->transparent) && |
333 | v4addr != htonl(INADDR_ANY) && | |
334 | chk_addr_ret != RTN_LOCAL && | |
335 | chk_addr_ret != RTN_MULTICAST && | |
ca6982b8 BP |
336 | chk_addr_ret != RTN_BROADCAST) { |
337 | err = -EADDRNOTAVAIL; | |
1da177e4 | 338 | goto out; |
ca6982b8 | 339 | } |
1da177e4 LT |
340 | } else { |
341 | if (addr_type != IPV6_ADDR_ANY) { | |
342 | struct net_device *dev = NULL; | |
343 | ||
16ba5e8e | 344 | rcu_read_lock(); |
842df073 | 345 | if (__ipv6_addr_needs_scope_id(addr_type)) { |
1da177e4 LT |
346 | if (addr_len >= sizeof(struct sockaddr_in6) && |
347 | addr->sin6_scope_id) { | |
348 | /* Override any existing binding, if another one | |
349 | * is supplied by user. | |
350 | */ | |
351 | sk->sk_bound_dev_if = addr->sin6_scope_id; | |
352 | } | |
1ab1457c | 353 | |
1da177e4 LT |
354 | /* Binding to link-local address requires an interface */ |
355 | if (!sk->sk_bound_dev_if) { | |
356 | err = -EINVAL; | |
16ba5e8e | 357 | goto out_unlock; |
1da177e4 | 358 | } |
16ba5e8e | 359 | dev = dev_get_by_index_rcu(net, sk->sk_bound_dev_if); |
1da177e4 LT |
360 | if (!dev) { |
361 | err = -ENODEV; | |
16ba5e8e | 362 | goto out_unlock; |
1da177e4 LT |
363 | } |
364 | } | |
365 | ||
366 | /* ipv4 addr of the socket is invalid. Only the | |
367 | * unspecified and mapped address have a v4 equivalent. | |
368 | */ | |
369 | v4addr = LOOPBACK4_IPV6; | |
370 | if (!(addr_type & IPV6_ADDR_MULTICAST)) { | |
35a256fe TH |
371 | if (!net->ipv6.sysctl.ip_nonlocal_bind && |
372 | !(inet->freebind || inet->transparent) && | |
0a513f6a | 373 | !ipv6_chk_addr(net, &addr->sin6_addr, |
bfeade08 | 374 | dev, 0)) { |
1da177e4 | 375 | err = -EADDRNOTAVAIL; |
16ba5e8e | 376 | goto out_unlock; |
1da177e4 LT |
377 | } |
378 | } | |
16ba5e8e | 379 | rcu_read_unlock(); |
1da177e4 LT |
380 | } |
381 | } | |
382 | ||
c720c7e8 ED |
383 | inet->inet_rcv_saddr = v4addr; |
384 | inet->inet_saddr = v4addr; | |
1da177e4 | 385 | |
efe4208f | 386 | sk->sk_v6_rcv_saddr = addr->sin6_addr; |
1ab1457c | 387 | |
1da177e4 | 388 | if (!(addr_type & IPV6_ADDR_MULTICAST)) |
4e3fd7a0 | 389 | np->saddr = addr->sin6_addr; |
1da177e4 LT |
390 | |
391 | /* Make sure we are allowed to bind here. */ | |
90c337da ED |
392 | if ((snum || !inet->bind_address_no_port) && |
393 | sk->sk_prot->get_port(sk, snum)) { | |
1da177e4 LT |
394 | inet_reset_saddr(sk); |
395 | err = -EADDRINUSE; | |
396 | goto out; | |
397 | } | |
398 | ||
0f8d3c7a | 399 | if (addr_type != IPV6_ADDR_ANY) { |
1da177e4 | 400 | sk->sk_userlocks |= SOCK_BINDADDR_LOCK; |
0f8d3c7a | 401 | if (addr_type != IPV6_ADDR_MAPPED) |
9fe516ba | 402 | sk->sk_ipv6only = 1; |
0f8d3c7a | 403 | } |
1da177e4 LT |
404 | if (snum) |
405 | sk->sk_userlocks |= SOCK_BINDPORT_LOCK; | |
c720c7e8 ED |
406 | inet->inet_sport = htons(inet->inet_num); |
407 | inet->inet_dport = 0; | |
408 | inet->inet_daddr = 0; | |
1da177e4 LT |
409 | out: |
410 | release_sock(sk); | |
411 | return err; | |
16ba5e8e ED |
412 | out_unlock: |
413 | rcu_read_unlock(); | |
414 | goto out; | |
1da177e4 | 415 | } |
7159039a YH |
416 | EXPORT_SYMBOL(inet6_bind); |
417 | ||
1da177e4 LT |
418 | int inet6_release(struct socket *sock) |
419 | { | |
420 | struct sock *sk = sock->sk; | |
421 | ||
63159f29 | 422 | if (!sk) |
1da177e4 LT |
423 | return -EINVAL; |
424 | ||
425 | /* Free mc lists */ | |
426 | ipv6_sock_mc_close(sk); | |
427 | ||
428 | /* Free ac lists */ | |
429 | ipv6_sock_ac_close(sk); | |
430 | ||
431 | return inet_release(sock); | |
432 | } | |
7159039a YH |
433 | EXPORT_SYMBOL(inet6_release); |
434 | ||
7d06b2e0 | 435 | void inet6_destroy_sock(struct sock *sk) |
1da177e4 LT |
436 | { |
437 | struct ipv6_pinfo *np = inet6_sk(sk); | |
438 | struct sk_buff *skb; | |
439 | struct ipv6_txoptions *opt; | |
440 | ||
1da177e4 LT |
441 | /* Release rx options */ |
442 | ||
647c0c70 | 443 | skb = xchg(&np->pktoptions, NULL); |
53b24b8f | 444 | if (skb) |
1da177e4 | 445 | kfree_skb(skb); |
4b340ae2 | 446 | |
647c0c70 | 447 | skb = xchg(&np->rxpmtu, NULL); |
53b24b8f | 448 | if (skb) |
4b340ae2 | 449 | kfree_skb(skb); |
1da177e4 LT |
450 | |
451 | /* Free flowlabels */ | |
452 | fl6_free_socklist(sk); | |
453 | ||
454 | /* Free tx options */ | |
455 | ||
45f6fad8 ED |
456 | opt = xchg((__force struct ipv6_txoptions **)&np->opt, NULL); |
457 | if (opt) { | |
458 | atomic_sub(opt->tot_len, &sk->sk_omem_alloc); | |
459 | txopt_put(opt); | |
460 | } | |
1da177e4 | 461 | } |
3cf3dc6c ACM |
462 | EXPORT_SYMBOL_GPL(inet6_destroy_sock); |
463 | ||
1da177e4 LT |
464 | /* |
465 | * This does both peername and sockname. | |
466 | */ | |
1ab1457c | 467 | |
1da177e4 LT |
468 | int inet6_getname(struct socket *sock, struct sockaddr *uaddr, |
469 | int *uaddr_len, int peer) | |
470 | { | |
647c0c70 | 471 | struct sockaddr_in6 *sin = (struct sockaddr_in6 *)uaddr; |
1da177e4 LT |
472 | struct sock *sk = sock->sk; |
473 | struct inet_sock *inet = inet_sk(sk); | |
474 | struct ipv6_pinfo *np = inet6_sk(sk); | |
1ab1457c | 475 | |
1da177e4 LT |
476 | sin->sin6_family = AF_INET6; |
477 | sin->sin6_flowinfo = 0; | |
478 | sin->sin6_scope_id = 0; | |
479 | if (peer) { | |
c720c7e8 | 480 | if (!inet->inet_dport) |
1da177e4 LT |
481 | return -ENOTCONN; |
482 | if (((1 << sk->sk_state) & (TCPF_CLOSE | TCPF_SYN_SENT)) && | |
483 | peer == 1) | |
484 | return -ENOTCONN; | |
c720c7e8 | 485 | sin->sin6_port = inet->inet_dport; |
efe4208f | 486 | sin->sin6_addr = sk->sk_v6_daddr; |
1da177e4 LT |
487 | if (np->sndflow) |
488 | sin->sin6_flowinfo = np->flow_label; | |
489 | } else { | |
efe4208f | 490 | if (ipv6_addr_any(&sk->sk_v6_rcv_saddr)) |
4e3fd7a0 | 491 | sin->sin6_addr = np->saddr; |
1da177e4 | 492 | else |
efe4208f | 493 | sin->sin6_addr = sk->sk_v6_rcv_saddr; |
1da177e4 | 494 | |
c720c7e8 | 495 | sin->sin6_port = inet->inet_sport; |
1da177e4 | 496 | } |
842df073 HFS |
497 | sin->sin6_scope_id = ipv6_iface_scope_id(&sin->sin6_addr, |
498 | sk->sk_bound_dev_if); | |
1da177e4 | 499 | *uaddr_len = sizeof(*sin); |
a02cec21 | 500 | return 0; |
1da177e4 | 501 | } |
7159039a YH |
502 | EXPORT_SYMBOL(inet6_getname); |
503 | ||
1da177e4 LT |
504 | int inet6_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) |
505 | { | |
506 | struct sock *sk = sock->sk; | |
3b1e0a65 | 507 | struct net *net = sock_net(sk); |
1da177e4 | 508 | |
647c0c70 | 509 | switch (cmd) { |
1da177e4 LT |
510 | case SIOCGSTAMP: |
511 | return sock_get_timestamp(sk, (struct timeval __user *)arg); | |
512 | ||
ae40eb1e ED |
513 | case SIOCGSTAMPNS: |
514 | return sock_get_timestampns(sk, (struct timespec __user *)arg); | |
515 | ||
1da177e4 LT |
516 | case SIOCADDRT: |
517 | case SIOCDELRT: | |
1ab1457c | 518 | |
a02cec21 | 519 | return ipv6_route_ioctl(net, cmd, (void __user *)arg); |
1da177e4 LT |
520 | |
521 | case SIOCSIFADDR: | |
af284937 | 522 | return addrconf_add_ifaddr(net, (void __user *) arg); |
1da177e4 | 523 | case SIOCDIFADDR: |
af284937 | 524 | return addrconf_del_ifaddr(net, (void __user *) arg); |
1da177e4 | 525 | case SIOCSIFDSTADDR: |
af284937 | 526 | return addrconf_set_dstaddr(net, (void __user *) arg); |
1da177e4 | 527 | default: |
b5e5fa5e CH |
528 | if (!sk->sk_prot->ioctl) |
529 | return -ENOIOCTLCMD; | |
530 | return sk->sk_prot->ioctl(sk, cmd, arg); | |
1da177e4 LT |
531 | } |
532 | /*NOTREACHED*/ | |
a02cec21 | 533 | return 0; |
1da177e4 | 534 | } |
7159039a YH |
535 | EXPORT_SYMBOL(inet6_ioctl); |
536 | ||
90ddc4f0 | 537 | const struct proto_ops inet6_stream_ops = { |
543d9cfe ACM |
538 | .family = PF_INET6, |
539 | .owner = THIS_MODULE, | |
540 | .release = inet6_release, | |
541 | .bind = inet6_bind, | |
542 | .connect = inet_stream_connect, /* ok */ | |
543 | .socketpair = sock_no_socketpair, /* a do nothing */ | |
544 | .accept = inet_accept, /* ok */ | |
545 | .getname = inet6_getname, | |
546 | .poll = tcp_poll, /* ok */ | |
547 | .ioctl = inet6_ioctl, /* must change */ | |
548 | .listen = inet_listen, /* ok */ | |
549 | .shutdown = inet_shutdown, /* ok */ | |
550 | .setsockopt = sock_common_setsockopt, /* ok */ | |
551 | .getsockopt = sock_common_getsockopt, /* ok */ | |
7ba42910 CG |
552 | .sendmsg = inet_sendmsg, /* ok */ |
553 | .recvmsg = inet_recvmsg, /* ok */ | |
543d9cfe | 554 | .mmap = sock_no_mmap, |
7ba42910 | 555 | .sendpage = inet_sendpage, |
a0974dd3 | 556 | .splice_read = tcp_splice_read, |
32035585 TH |
557 | .read_sock = tcp_read_sock, |
558 | .peek_len = tcp_peek_len, | |
3fdadf7d | 559 | #ifdef CONFIG_COMPAT |
543d9cfe ACM |
560 | .compat_setsockopt = compat_sock_common_setsockopt, |
561 | .compat_getsockopt = compat_sock_common_getsockopt, | |
3fdadf7d | 562 | #endif |
1da177e4 LT |
563 | }; |
564 | ||
90ddc4f0 | 565 | const struct proto_ops inet6_dgram_ops = { |
543d9cfe ACM |
566 | .family = PF_INET6, |
567 | .owner = THIS_MODULE, | |
568 | .release = inet6_release, | |
569 | .bind = inet6_bind, | |
570 | .connect = inet_dgram_connect, /* ok */ | |
571 | .socketpair = sock_no_socketpair, /* a do nothing */ | |
572 | .accept = sock_no_accept, /* a do nothing */ | |
573 | .getname = inet6_getname, | |
574 | .poll = udp_poll, /* ok */ | |
575 | .ioctl = inet6_ioctl, /* must change */ | |
576 | .listen = sock_no_listen, /* ok */ | |
577 | .shutdown = inet_shutdown, /* ok */ | |
578 | .setsockopt = sock_common_setsockopt, /* ok */ | |
579 | .getsockopt = sock_common_getsockopt, /* ok */ | |
580 | .sendmsg = inet_sendmsg, /* ok */ | |
7ba42910 | 581 | .recvmsg = inet_recvmsg, /* ok */ |
543d9cfe ACM |
582 | .mmap = sock_no_mmap, |
583 | .sendpage = sock_no_sendpage, | |
627d2d6b | 584 | .set_peek_off = sk_set_peek_off, |
3fdadf7d | 585 | #ifdef CONFIG_COMPAT |
543d9cfe ACM |
586 | .compat_setsockopt = compat_sock_common_setsockopt, |
587 | .compat_getsockopt = compat_sock_common_getsockopt, | |
3fdadf7d | 588 | #endif |
1da177e4 LT |
589 | }; |
590 | ||
ec1b4cf7 | 591 | static const struct net_proto_family inet6_family_ops = { |
1da177e4 LT |
592 | .family = PF_INET6, |
593 | .create = inet6_create, | |
594 | .owner = THIS_MODULE, | |
595 | }; | |
596 | ||
87c3efbf | 597 | int inet6_register_protosw(struct inet_protosw *p) |
1da177e4 LT |
598 | { |
599 | struct list_head *lh; | |
600 | struct inet_protosw *answer; | |
1da177e4 | 601 | struct list_head *last_perm; |
87c3efbf DL |
602 | int protocol = p->protocol; |
603 | int ret; | |
1da177e4 LT |
604 | |
605 | spin_lock_bh(&inetsw6_lock); | |
606 | ||
87c3efbf | 607 | ret = -EINVAL; |
1da177e4 LT |
608 | if (p->type >= SOCK_MAX) |
609 | goto out_illegal; | |
610 | ||
611 | /* If we are trying to override a permanent protocol, bail. */ | |
612 | answer = NULL; | |
87c3efbf | 613 | ret = -EPERM; |
1da177e4 LT |
614 | last_perm = &inetsw6[p->type]; |
615 | list_for_each(lh, &inetsw6[p->type]) { | |
616 | answer = list_entry(lh, struct inet_protosw, list); | |
617 | ||
618 | /* Check only the non-wild match. */ | |
619 | if (INET_PROTOSW_PERMANENT & answer->flags) { | |
620 | if (protocol == answer->protocol) | |
621 | break; | |
622 | last_perm = lh; | |
623 | } | |
624 | ||
625 | answer = NULL; | |
626 | } | |
627 | if (answer) | |
628 | goto out_permanent; | |
629 | ||
630 | /* Add the new entry after the last permanent entry if any, so that | |
631 | * the new entry does not override a permanent entry when matched with | |
632 | * a wild-card protocol. But it is allowed to override any existing | |
1ab1457c | 633 | * non-permanent entry. This means that when we remove this entry, the |
1da177e4 LT |
634 | * system automatically returns to the old behavior. |
635 | */ | |
636 | list_add_rcu(&p->list, last_perm); | |
87c3efbf | 637 | ret = 0; |
1da177e4 LT |
638 | out: |
639 | spin_unlock_bh(&inetsw6_lock); | |
87c3efbf | 640 | return ret; |
1da177e4 LT |
641 | |
642 | out_permanent: | |
f3213831 | 643 | pr_err("Attempt to override permanent protocol %d\n", protocol); |
1da177e4 LT |
644 | goto out; |
645 | ||
646 | out_illegal: | |
f3213831 | 647 | pr_err("Ignoring attempt to register invalid socket type %d\n", |
1da177e4 LT |
648 | p->type); |
649 | goto out; | |
650 | } | |
7159039a YH |
651 | EXPORT_SYMBOL(inet6_register_protosw); |
652 | ||
1da177e4 LT |
653 | void |
654 | inet6_unregister_protosw(struct inet_protosw *p) | |
655 | { | |
656 | if (INET_PROTOSW_PERMANENT & p->flags) { | |
f3213831 | 657 | pr_err("Attempt to unregister permanent protocol %d\n", |
1da177e4 LT |
658 | p->protocol); |
659 | } else { | |
660 | spin_lock_bh(&inetsw6_lock); | |
661 | list_del_rcu(&p->list); | |
662 | spin_unlock_bh(&inetsw6_lock); | |
663 | ||
664 | synchronize_net(); | |
665 | } | |
666 | } | |
7159039a YH |
667 | EXPORT_SYMBOL(inet6_unregister_protosw); |
668 | ||
b9750ce1 ACM |
669 | int inet6_sk_rebuild_header(struct sock *sk) |
670 | { | |
b9750ce1 | 671 | struct ipv6_pinfo *np = inet6_sk(sk); |
68d0c6d3 | 672 | struct dst_entry *dst; |
b9750ce1 ACM |
673 | |
674 | dst = __sk_dst_check(sk, np->dst_cookie); | |
675 | ||
63159f29 | 676 | if (!dst) { |
b9750ce1 | 677 | struct inet_sock *inet = inet_sk(sk); |
20c59de2 | 678 | struct in6_addr *final_p, final; |
4c9483b2 DM |
679 | struct flowi6 fl6; |
680 | ||
681 | memset(&fl6, 0, sizeof(fl6)); | |
682 | fl6.flowi6_proto = sk->sk_protocol; | |
efe4208f | 683 | fl6.daddr = sk->sk_v6_daddr; |
4e3fd7a0 | 684 | fl6.saddr = np->saddr; |
4c9483b2 DM |
685 | fl6.flowlabel = np->flow_label; |
686 | fl6.flowi6_oif = sk->sk_bound_dev_if; | |
687 | fl6.flowi6_mark = sk->sk_mark; | |
1958b856 DM |
688 | fl6.fl6_dport = inet->inet_dport; |
689 | fl6.fl6_sport = inet->inet_sport; | |
e2d118a1 | 690 | fl6.flowi6_uid = sk->sk_uid; |
4c9483b2 DM |
691 | security_sk_classify_flow(sk, flowi6_to_flowi(&fl6)); |
692 | ||
45f6fad8 ED |
693 | rcu_read_lock(); |
694 | final_p = fl6_update_dst(&fl6, rcu_dereference(np->opt), | |
695 | &final); | |
696 | rcu_read_unlock(); | |
4c9483b2 | 697 | |
0e0d44ab | 698 | dst = ip6_dst_lookup_flow(sk, &fl6, final_p); |
68d0c6d3 | 699 | if (IS_ERR(dst)) { |
b9750ce1 | 700 | sk->sk_route_caps = 0; |
68d0c6d3 DM |
701 | sk->sk_err_soft = -PTR_ERR(dst); |
702 | return PTR_ERR(dst); | |
b9750ce1 ACM |
703 | } |
704 | ||
6bd4f355 | 705 | ip6_dst_store(sk, dst, NULL, NULL); |
b9750ce1 ACM |
706 | } |
707 | ||
708 | return 0; | |
709 | } | |
b9750ce1 ACM |
710 | EXPORT_SYMBOL_GPL(inet6_sk_rebuild_header); |
711 | ||
a224772d ED |
712 | bool ipv6_opt_accepted(const struct sock *sk, const struct sk_buff *skb, |
713 | const struct inet6_skb_parm *opt) | |
399c07de | 714 | { |
92113bfd | 715 | const struct ipv6_pinfo *np = inet6_sk(sk); |
399c07de ACM |
716 | |
717 | if (np->rxopt.all) { | |
8b58a398 FW |
718 | if (((opt->flags & IP6SKB_HOPBYHOP) && |
719 | (np->rxopt.bits.hopopts || np->rxopt.bits.ohopopts)) || | |
ac1eabca | 720 | (ip6_flowinfo((struct ipv6hdr *) skb_network_header(skb)) && |
399c07de ACM |
721 | np->rxopt.bits.rxflow) || |
722 | (opt->srcrt && (np->rxopt.bits.srcrt || | |
723 | np->rxopt.bits.osrcrt)) || | |
724 | ((opt->dst1 || opt->dst0) && | |
725 | (np->rxopt.bits.dstopts || np->rxopt.bits.odstopts))) | |
92113bfd | 726 | return true; |
399c07de | 727 | } |
92113bfd | 728 | return false; |
399c07de | 729 | } |
399c07de ACM |
730 | EXPORT_SYMBOL_GPL(ipv6_opt_accepted); |
731 | ||
7546dd97 | 732 | static struct packet_type ipv6_packet_type __read_mostly = { |
09640e63 | 733 | .type = cpu_to_be16(ETH_P_IPV6), |
662397fd | 734 | .func = ipv6_rcv, |
22061d80 VY |
735 | }; |
736 | ||
662397fd YH |
737 | static int __init ipv6_packet_init(void) |
738 | { | |
739 | dev_add_pack(&ipv6_packet_type); | |
740 | return 0; | |
741 | } | |
742 | ||
743 | static void ipv6_packet_cleanup(void) | |
744 | { | |
745 | dev_remove_pack(&ipv6_packet_type); | |
746 | } | |
747 | ||
e43291cb DL |
748 | static int __net_init ipv6_init_mibs(struct net *net) |
749 | { | |
827da44c JS |
750 | int i; |
751 | ||
698365fa WC |
752 | net->mib.udp_stats_in6 = alloc_percpu(struct udp_mib); |
753 | if (!net->mib.udp_stats_in6) | |
0c7ed677 | 754 | return -ENOMEM; |
698365fa WC |
755 | net->mib.udplite_stats_in6 = alloc_percpu(struct udp_mib); |
756 | if (!net->mib.udplite_stats_in6) | |
be713a44 | 757 | goto err_udplite_mib; |
698365fa WC |
758 | net->mib.ipv6_statistics = alloc_percpu(struct ipstats_mib); |
759 | if (!net->mib.ipv6_statistics) | |
9261e537 | 760 | goto err_ip_mib; |
827da44c JS |
761 | |
762 | for_each_possible_cpu(i) { | |
763 | struct ipstats_mib *af_inet6_stats; | |
698365fa | 764 | af_inet6_stats = per_cpu_ptr(net->mib.ipv6_statistics, i); |
827da44c | 765 | u64_stats_init(&af_inet6_stats->syncp); |
827da44c JS |
766 | } |
767 | ||
768 | ||
698365fa WC |
769 | net->mib.icmpv6_statistics = alloc_percpu(struct icmpv6_mib); |
770 | if (!net->mib.icmpv6_statistics) | |
9261e537 | 771 | goto err_icmp_mib; |
2a24444f ED |
772 | net->mib.icmpv6msg_statistics = kzalloc(sizeof(struct icmpv6msg_mib), |
773 | GFP_KERNEL); | |
774 | if (!net->mib.icmpv6msg_statistics) | |
9261e537 | 775 | goto err_icmpmsg_mib; |
e43291cb | 776 | return 0; |
be713a44 | 777 | |
9261e537 | 778 | err_icmpmsg_mib: |
698365fa | 779 | free_percpu(net->mib.icmpv6_statistics); |
9261e537 | 780 | err_icmp_mib: |
698365fa | 781 | free_percpu(net->mib.ipv6_statistics); |
9261e537 | 782 | err_ip_mib: |
698365fa | 783 | free_percpu(net->mib.udplite_stats_in6); |
be713a44 | 784 | err_udplite_mib: |
698365fa | 785 | free_percpu(net->mib.udp_stats_in6); |
be713a44 | 786 | return -ENOMEM; |
e43291cb DL |
787 | } |
788 | ||
2c8c1e72 | 789 | static void ipv6_cleanup_mibs(struct net *net) |
e43291cb | 790 | { |
698365fa WC |
791 | free_percpu(net->mib.udp_stats_in6); |
792 | free_percpu(net->mib.udplite_stats_in6); | |
793 | free_percpu(net->mib.ipv6_statistics); | |
794 | free_percpu(net->mib.icmpv6_statistics); | |
2a24444f | 795 | kfree(net->mib.icmpv6msg_statistics); |
e43291cb DL |
796 | } |
797 | ||
e7dc8494 | 798 | static int __net_init inet6_net_init(struct net *net) |
81c1c178 | 799 | { |
0c96d8c5 DL |
800 | int err = 0; |
801 | ||
99bc9c4e | 802 | net->ipv6.sysctl.bindv6only = 0; |
41a76906 | 803 | net->ipv6.sysctl.icmpv6_time = 1*HZ; |
6444f72b | 804 | net->ipv6.sysctl.flowlabel_consistency = 1; |
42240901 | 805 | net->ipv6.sysctl.auto_flowlabels = IP6_DEFAULT_AUTO_FLOW_LABELS; |
1855b7c3 HFS |
806 | net->ipv6.sysctl.idgen_retries = 3; |
807 | net->ipv6.sysctl.idgen_delay = 1 * HZ; | |
be26849b | 808 | net->ipv6.sysctl.flowlabel_state_ranges = 0; |
812918c4 | 809 | atomic_set(&net->ipv6.fib6_sernum, 1); |
e71e0349 | 810 | |
e43291cb DL |
811 | err = ipv6_init_mibs(net); |
812 | if (err) | |
813 | return err; | |
0c96d8c5 DL |
814 | #ifdef CONFIG_PROC_FS |
815 | err = udp6_proc_init(net); | |
816 | if (err) | |
817 | goto out; | |
6f8b13bc DL |
818 | err = tcp6_proc_init(net); |
819 | if (err) | |
820 | goto proc_tcp6_fail; | |
6ab57e7e DL |
821 | err = ac6_proc_init(net); |
822 | if (err) | |
823 | goto proc_ac6_fail; | |
0c96d8c5 DL |
824 | #endif |
825 | return err; | |
6f8b13bc DL |
826 | |
827 | #ifdef CONFIG_PROC_FS | |
6ab57e7e DL |
828 | proc_ac6_fail: |
829 | tcp6_proc_exit(net); | |
6f8b13bc DL |
830 | proc_tcp6_fail: |
831 | udp6_proc_exit(net); | |
e43291cb DL |
832 | out: |
833 | ipv6_cleanup_mibs(net); | |
834 | return err; | |
6f8b13bc | 835 | #endif |
81c1c178 DL |
836 | } |
837 | ||
2c8c1e72 | 838 | static void __net_exit inet6_net_exit(struct net *net) |
81c1c178 | 839 | { |
0c96d8c5 DL |
840 | #ifdef CONFIG_PROC_FS |
841 | udp6_proc_exit(net); | |
6f8b13bc | 842 | tcp6_proc_exit(net); |
6ab57e7e | 843 | ac6_proc_exit(net); |
0c96d8c5 | 844 | #endif |
e43291cb | 845 | ipv6_cleanup_mibs(net); |
81c1c178 DL |
846 | } |
847 | ||
848 | static struct pernet_operations inet6_net_ops = { | |
849 | .init = inet6_net_init, | |
850 | .exit = inet6_net_exit, | |
851 | }; | |
852 | ||
5f81bd2e CW |
853 | static const struct ipv6_stub ipv6_stub_impl = { |
854 | .ipv6_sock_mc_join = ipv6_sock_mc_join, | |
855 | .ipv6_sock_mc_drop = ipv6_sock_mc_drop, | |
856 | .ipv6_dst_lookup = ip6_dst_lookup, | |
857 | .udpv6_encap_enable = udpv6_encap_enable, | |
f564f45c | 858 | .ndisc_send_na = ndisc_send_na, |
e15a00aa | 859 | .nd_tbl = &nd_tbl, |
5f81bd2e CW |
860 | }; |
861 | ||
1da177e4 LT |
862 | static int __init inet6_init(void) |
863 | { | |
1ab1457c | 864 | struct list_head *r; |
fe7ca2e1 | 865 | int err = 0; |
1da177e4 | 866 | |
b4772ef8 | 867 | sock_skb_cb_check_size(sizeof(struct inet6_skb_parm)); |
ef047f5e | 868 | |
fe7ca2e1 | 869 | /* Register the socket-side information for inet6_create. */ |
647c0c70 | 870 | for (r = &inetsw6[0]; r < &inetsw6[SOCK_MAX]; ++r) |
fe7ca2e1 BH |
871 | INIT_LIST_HEAD(r); |
872 | ||
56d417b1 | 873 | if (disable_ipv6_mod) { |
f3213831 | 874 | pr_info("Loaded, but administratively disabled, reboot required to enable\n"); |
fe7ca2e1 BH |
875 | goto out; |
876 | } | |
877 | ||
1da177e4 LT |
878 | err = proto_register(&tcpv6_prot, 1); |
879 | if (err) | |
880 | goto out; | |
881 | ||
882 | err = proto_register(&udpv6_prot, 1); | |
883 | if (err) | |
884 | goto out_unregister_tcp_proto; | |
885 | ||
ba4e58ec | 886 | err = proto_register(&udplitev6_prot, 1); |
1da177e4 LT |
887 | if (err) |
888 | goto out_unregister_udp_proto; | |
889 | ||
ba4e58ec GR |
890 | err = proto_register(&rawv6_prot, 1); |
891 | if (err) | |
892 | goto out_unregister_udplite_proto; | |
893 | ||
6d0bfe22 LC |
894 | err = proto_register(&pingv6_prot, 1); |
895 | if (err) | |
896 | goto out_unregister_ping_proto; | |
1da177e4 | 897 | |
1da177e4 LT |
898 | /* We MUST register RAW sockets before we create the ICMP6, |
899 | * IGMP6, or NDISC control sockets. | |
900 | */ | |
7f4e4868 DL |
901 | err = rawv6_init(); |
902 | if (err) | |
903 | goto out_unregister_raw_proto; | |
1da177e4 LT |
904 | |
905 | /* Register the family here so that the init calls below will | |
906 | * be able to create sockets. (?? is this dangerous ??) | |
907 | */ | |
8eb55910 DM |
908 | err = sock_register(&inet6_family_ops); |
909 | if (err) | |
7f4e4868 | 910 | goto out_sock_register_fail; |
1da177e4 | 911 | |
1da177e4 LT |
912 | /* |
913 | * ipngwg API draft makes clear that the correct semantics | |
914 | * for TCP and UDP is to consider one TCP and UDP instance | |
25985edc | 915 | * in a host available by both INET and INET6 APIs and |
1da177e4 LT |
916 | * able to communicate via both network protocols. |
917 | */ | |
918 | ||
81c1c178 DL |
919 | err = register_pernet_subsys(&inet6_net_ops); |
920 | if (err) | |
921 | goto register_pernet_fail; | |
9b0f976f | 922 | err = icmpv6_init(); |
1da177e4 LT |
923 | if (err) |
924 | goto icmp_fail; | |
623d1a1a WC |
925 | err = ip6_mr_init(); |
926 | if (err) | |
927 | goto ipmr_fail; | |
9b0f976f | 928 | err = ndisc_init(); |
1da177e4 LT |
929 | if (err) |
930 | goto ndisc_fail; | |
9b0f976f | 931 | err = igmp6_init(); |
1da177e4 LT |
932 | if (err) |
933 | goto igmp_fail; | |
5f81bd2e CW |
934 | |
935 | ipv6_stub = &ipv6_stub_impl; | |
936 | ||
2cc7d573 HW |
937 | err = ipv6_netfilter_init(); |
938 | if (err) | |
939 | goto netfilter_fail; | |
1da177e4 LT |
940 | /* Create /proc/foo6 entries. */ |
941 | #ifdef CONFIG_PROC_FS | |
942 | err = -ENOMEM; | |
943 | if (raw6_proc_init()) | |
944 | goto proc_raw6_fail; | |
ba4e58ec GR |
945 | if (udplite6_proc_init()) |
946 | goto proc_udplite6_fail; | |
1da177e4 LT |
947 | if (ipv6_misc_proc_init()) |
948 | goto proc_misc6_fail; | |
1da177e4 LT |
949 | if (if6_proc_init()) |
950 | goto proc_if6_fail; | |
951 | #endif | |
e2fddf5e DL |
952 | err = ip6_route_init(); |
953 | if (err) | |
954 | goto ip6_route_fail; | |
2c861cc6 MK |
955 | err = ndisc_late_init(); |
956 | if (err) | |
957 | goto ndisc_late_fail; | |
0a3e78ac DL |
958 | err = ip6_flowlabel_init(); |
959 | if (err) | |
960 | goto ip6_flowlabel_fail; | |
1da177e4 LT |
961 | err = addrconf_init(); |
962 | if (err) | |
963 | goto addrconf_fail; | |
1da177e4 LT |
964 | |
965 | /* Init v6 extension headers. */ | |
248b238d DL |
966 | err = ipv6_exthdrs_init(); |
967 | if (err) | |
968 | goto ipv6_exthdrs_fail; | |
969 | ||
853cbbaa DL |
970 | err = ipv6_frag_init(); |
971 | if (err) | |
972 | goto ipv6_frag_fail; | |
1da177e4 LT |
973 | |
974 | /* Init v6 transport protocols. */ | |
7f4e4868 DL |
975 | err = udpv6_init(); |
976 | if (err) | |
977 | goto udpv6_fail; | |
e2ed4052 | 978 | |
7f4e4868 DL |
979 | err = udplitev6_init(); |
980 | if (err) | |
981 | goto udplitev6_fail; | |
982 | ||
a6024562 TH |
983 | err = udpv6_offload_init(); |
984 | if (err) | |
985 | goto udpv6_offload_fail; | |
986 | ||
7f4e4868 DL |
987 | err = tcpv6_init(); |
988 | if (err) | |
989 | goto tcpv6_fail; | |
990 | ||
991 | err = ipv6_packet_init(); | |
992 | if (err) | |
993 | goto ipv6_packet_fail; | |
94911fe3 | 994 | |
6d0bfe22 LC |
995 | err = pingv6_init(); |
996 | if (err) | |
997 | goto pingv6_fail; | |
998 | ||
cb72d382 HD |
999 | err = calipso_init(); |
1000 | if (err) | |
1001 | goto calipso_fail; | |
1002 | ||
915d7e5e DL |
1003 | err = seg6_init(); |
1004 | if (err) | |
1005 | goto seg6_fail; | |
1006 | ||
94911fe3 BT |
1007 | #ifdef CONFIG_SYSCTL |
1008 | err = ipv6_sysctl_register(); | |
1009 | if (err) | |
1010 | goto sysctl_fail; | |
1011 | #endif | |
1da177e4 LT |
1012 | out: |
1013 | return err; | |
1014 | ||
94911fe3 BT |
1015 | #ifdef CONFIG_SYSCTL |
1016 | sysctl_fail: | |
915d7e5e | 1017 | seg6_exit(); |
94911fe3 | 1018 | #endif |
915d7e5e DL |
1019 | seg6_fail: |
1020 | calipso_exit(); | |
cb72d382 HD |
1021 | calipso_fail: |
1022 | pingv6_exit(); | |
6d0bfe22 | 1023 | pingv6_fail: |
eca42aaf | 1024 | ipv6_packet_cleanup(); |
7f4e4868 DL |
1025 | ipv6_packet_fail: |
1026 | tcpv6_exit(); | |
1027 | tcpv6_fail: | |
a6024562 TH |
1028 | udpv6_offload_exit(); |
1029 | udpv6_offload_fail: | |
7f4e4868 DL |
1030 | udplitev6_exit(); |
1031 | udplitev6_fail: | |
1032 | udpv6_exit(); | |
1033 | udpv6_fail: | |
1034 | ipv6_frag_exit(); | |
853cbbaa DL |
1035 | ipv6_frag_fail: |
1036 | ipv6_exthdrs_exit(); | |
248b238d DL |
1037 | ipv6_exthdrs_fail: |
1038 | addrconf_cleanup(); | |
1da177e4 LT |
1039 | addrconf_fail: |
1040 | ip6_flowlabel_cleanup(); | |
0a3e78ac | 1041 | ip6_flowlabel_fail: |
2c861cc6 MK |
1042 | ndisc_late_cleanup(); |
1043 | ndisc_late_fail: | |
1da177e4 | 1044 | ip6_route_cleanup(); |
e2fddf5e | 1045 | ip6_route_fail: |
1da177e4 LT |
1046 | #ifdef CONFIG_PROC_FS |
1047 | if6_proc_exit(); | |
1048 | proc_if6_fail: | |
1da177e4 LT |
1049 | ipv6_misc_proc_exit(); |
1050 | proc_misc6_fail: | |
ba4e58ec GR |
1051 | udplite6_proc_exit(); |
1052 | proc_udplite6_fail: | |
1da177e4 LT |
1053 | raw6_proc_exit(); |
1054 | proc_raw6_fail: | |
1055 | #endif | |
2cc7d573 HW |
1056 | ipv6_netfilter_fini(); |
1057 | netfilter_fail: | |
1da177e4 LT |
1058 | igmp6_cleanup(); |
1059 | igmp_fail: | |
1060 | ndisc_cleanup(); | |
1061 | ndisc_fail: | |
623d1a1a WC |
1062 | ip6_mr_cleanup(); |
1063 | ipmr_fail: | |
1da177e4 LT |
1064 | icmpv6_cleanup(); |
1065 | icmp_fail: | |
81c1c178 DL |
1066 | unregister_pernet_subsys(&inet6_net_ops); |
1067 | register_pernet_fail: | |
8eb55910 | 1068 | sock_unregister(PF_INET6); |
e2fddf5e | 1069 | rtnl_unregister_all(PF_INET6); |
7f4e4868 DL |
1070 | out_sock_register_fail: |
1071 | rawv6_exit(); | |
6d0bfe22 LC |
1072 | out_unregister_ping_proto: |
1073 | proto_unregister(&pingv6_prot); | |
1da177e4 LT |
1074 | out_unregister_raw_proto: |
1075 | proto_unregister(&rawv6_prot); | |
ba4e58ec GR |
1076 | out_unregister_udplite_proto: |
1077 | proto_unregister(&udplitev6_prot); | |
1da177e4 LT |
1078 | out_unregister_udp_proto: |
1079 | proto_unregister(&udpv6_prot); | |
1080 | out_unregister_tcp_proto: | |
1081 | proto_unregister(&tcpv6_prot); | |
1082 | goto out; | |
1083 | } | |
1084 | module_init(inet6_init); | |
1085 | ||
1da177e4 | 1086 | MODULE_ALIAS_NETPROTO(PF_INET6); |