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octeontx2-pf: Fix error return code in otx2_probe()
[linux/fpc-iii.git] / net / ipv6 / ipv6_sockglue.c
blob18d05403d3b52cc0e69c484c61f04d9f4a166457
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * IPv6 BSD socket options interface
4 * Linux INET6 implementation
5 *
6 * Authors:
7 * Pedro Roque <roque@di.fc.ul.pt>
8 *
9 * Based on linux/net/ipv4/ip_sockglue.c
10 *
11 * FIXME: Make the setsockopt code POSIX compliant: That is
12 *
13 * o Truncate getsockopt returns
14 * o Return an optlen of the truncated length if need be
15 *
16 * Changes:
17 * David L Stevens <dlstevens@us.ibm.com>:
18 * - added multicast source filtering API for MLDv2
19 */
20
21 #include <linux/module.h>
22 #include <linux/capability.h>
23 #include <linux/errno.h>
24 #include <linux/types.h>
25 #include <linux/socket.h>
26 #include <linux/sockios.h>
27 #include <linux/net.h>
28 #include <linux/in6.h>
29 #include <linux/mroute6.h>
30 #include <linux/netdevice.h>
31 #include <linux/if_arp.h>
32 #include <linux/init.h>
33 #include <linux/sysctl.h>
34 #include <linux/netfilter.h>
35 #include <linux/slab.h>
36
37 #include <net/sock.h>
38 #include <net/snmp.h>
39 #include <net/ipv6.h>
40 #include <net/ndisc.h>
41 #include <net/protocol.h>
42 #include <net/transp_v6.h>
43 #include <net/ip6_route.h>
44 #include <net/addrconf.h>
45 #include <net/inet_common.h>
46 #include <net/tcp.h>
47 #include <net/udp.h>
48 #include <net/udplite.h>
49 #include <net/xfrm.h>
50 #include <net/compat.h>
51 #include <net/seg6.h>
52
53 #include <linux/uaccess.h>
54
55 struct ip6_ra_chain *ip6_ra_chain;
56 DEFINE_RWLOCK(ip6_ra_lock);
57
58 int ip6_ra_control(struct sock *sk, int sel)
59 {
60 struct ip6_ra_chain *ra, *new_ra, **rap;
61
62 /* RA packet may be delivered ONLY to IPPROTO_RAW socket */
63 if (sk->sk_type != SOCK_RAW || inet_sk(sk)->inet_num != IPPROTO_RAW)
64 return -ENOPROTOOPT;
65
66 new_ra = (sel >= 0) ? kmalloc(sizeof(*new_ra), GFP_KERNEL) : NULL;
67 if (sel >= 0 && !new_ra)
68 return -ENOMEM;
69
70 write_lock_bh(&ip6_ra_lock);
71 for (rap = &ip6_ra_chain; (ra = *rap) != NULL; rap = &ra->next) {
72 if (ra->sk == sk) {
73 if (sel >= 0) {
74 write_unlock_bh(&ip6_ra_lock);
75 kfree(new_ra);
76 return -EADDRINUSE;
77 }
78
79 *rap = ra->next;
80 write_unlock_bh(&ip6_ra_lock);
81
82 sock_put(sk);
83 kfree(ra);
84 return 0;
85 }
86 }
87 if (!new_ra) {
88 write_unlock_bh(&ip6_ra_lock);
89 return -ENOBUFS;
90 }
91 new_ra->sk = sk;
92 new_ra->sel = sel;
93 new_ra->next = ra;
94 *rap = new_ra;
95 sock_hold(sk);
96 write_unlock_bh(&ip6_ra_lock);
97 return 0;
98 }
99
100 struct ipv6_txoptions *ipv6_update_options(struct sock *sk,
101 struct ipv6_txoptions *opt)
102 {
103 if (inet_sk(sk)->is_icsk) {
104 if (opt &&
105 !((1 << sk->sk_state) & (TCPF_LISTEN | TCPF_CLOSE)) &&
106 inet_sk(sk)->inet_daddr != LOOPBACK4_IPV6) {
107 struct inet_connection_sock *icsk = inet_csk(sk);
108 icsk->icsk_ext_hdr_len = opt->opt_flen + opt->opt_nflen;
109 icsk->icsk_sync_mss(sk, icsk->icsk_pmtu_cookie);
110 }
111 }
112 opt = xchg((__force struct ipv6_txoptions **)&inet6_sk(sk)->opt,
113 opt);
114 sk_dst_reset(sk);
115
116 return opt;
117 }
118
119 static bool setsockopt_needs_rtnl(int optname)
120 {
121 switch (optname) {
122 case IPV6_ADDRFORM:
123 case IPV6_ADD_MEMBERSHIP:
124 case IPV6_DROP_MEMBERSHIP:
125 case IPV6_JOIN_ANYCAST:
126 case IPV6_LEAVE_ANYCAST:
127 case MCAST_JOIN_GROUP:
128 case MCAST_LEAVE_GROUP:
129 case MCAST_JOIN_SOURCE_GROUP:
130 case MCAST_LEAVE_SOURCE_GROUP:
131 case MCAST_BLOCK_SOURCE:
132 case MCAST_UNBLOCK_SOURCE:
133 case MCAST_MSFILTER:
134 return true;
135 }
136 return false;
137 }
138
139 static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
140 char __user *optval, unsigned int optlen)
141 {
142 struct ipv6_pinfo *np = inet6_sk(sk);
143 struct net *net = sock_net(sk);
144 int val, valbool;
145 int retv = -ENOPROTOOPT;
146 bool needs_rtnl = setsockopt_needs_rtnl(optname);
147
148 if (!optval)
149 val = 0;
150 else {
151 if (optlen >= sizeof(int)) {
152 if (get_user(val, (int __user *) optval))
153 return -EFAULT;
154 } else
155 val = 0;
156 }
157
158 valbool = (val != 0);
159
160 if (ip6_mroute_opt(optname))
161 return ip6_mroute_setsockopt(sk, optname, optval, optlen);
162
163 if (needs_rtnl)
164 rtnl_lock();
165 lock_sock(sk);
166
167 switch (optname) {
168
169 case IPV6_ADDRFORM:
170 if (optlen < sizeof(int))
171 goto e_inval;
172 if (val == PF_INET) {
173 struct ipv6_txoptions *opt;
174 struct sk_buff *pktopt;
175
176 if (sk->sk_type == SOCK_RAW)
177 break;
178
179 if (sk->sk_protocol == IPPROTO_UDP ||
180 sk->sk_protocol == IPPROTO_UDPLITE) {
181 struct udp_sock *up = udp_sk(sk);
182 if (up->pending == AF_INET6) {
183 retv = -EBUSY;
184 break;
185 }
186 }
187 if (sk->sk_protocol == IPPROTO_TCP &&
188 sk->sk_prot != &tcpv6_prot) {
189 retv = -EBUSY;
190 break;
191 }
192 if (sk->sk_protocol != IPPROTO_TCP)
193 break;
194 if (sk->sk_state != TCP_ESTABLISHED) {
195 retv = -ENOTCONN;
196 break;
197 }
198
199 if (ipv6_only_sock(sk) ||
200 !ipv6_addr_v4mapped(&sk->sk_v6_daddr)) {
201 retv = -EADDRNOTAVAIL;
202 break;
203 }
204
205 fl6_free_socklist(sk);
206 __ipv6_sock_mc_close(sk);
207
208 /*
209 * Sock is moving from IPv6 to IPv4 (sk_prot), so
210 * remove it from the refcnt debug socks count in the
211 * original family...
212 */
213 sk_refcnt_debug_dec(sk);
214
215 if (sk->sk_protocol == IPPROTO_TCP) {
216 struct inet_connection_sock *icsk = inet_csk(sk);
217 local_bh_disable();
218 sock_prot_inuse_add(net, sk->sk_prot, -1);
219 sock_prot_inuse_add(net, &tcp_prot, 1);
220 local_bh_enable();
221 sk->sk_prot = &tcp_prot;
222 icsk->icsk_af_ops = &ipv4_specific;
223 sk->sk_socket->ops = &inet_stream_ops;
224 sk->sk_family = PF_INET;
225 tcp_sync_mss(sk, icsk->icsk_pmtu_cookie);
226 } else {
227 struct proto *prot = &udp_prot;
228
229 if (sk->sk_protocol == IPPROTO_UDPLITE)
230 prot = &udplite_prot;
231 local_bh_disable();
232 sock_prot_inuse_add(net, sk->sk_prot, -1);
233 sock_prot_inuse_add(net, prot, 1);
234 local_bh_enable();
235 sk->sk_prot = prot;
236 sk->sk_socket->ops = &inet_dgram_ops;
237 sk->sk_family = PF_INET;
238 }
239 opt = xchg((__force struct ipv6_txoptions **)&np->opt,
240 NULL);
241 if (opt) {
242 atomic_sub(opt->tot_len, &sk->sk_omem_alloc);
243 txopt_put(opt);
244 }
245 pktopt = xchg(&np->pktoptions, NULL);
246 kfree_skb(pktopt);
247
248 /*
249 * ... and add it to the refcnt debug socks count
250 * in the new family. -acme
251 */
252 sk_refcnt_debug_inc(sk);
253 module_put(THIS_MODULE);
254 retv = 0;
255 break;
256 }
257 goto e_inval;
258
259 case IPV6_V6ONLY:
260 if (optlen < sizeof(int) ||
261 inet_sk(sk)->inet_num)
262 goto e_inval;
263 sk->sk_ipv6only = valbool;
264 retv = 0;
265 break;
266
267 case IPV6_RECVPKTINFO:
268 if (optlen < sizeof(int))
269 goto e_inval;
270 np->rxopt.bits.rxinfo = valbool;
271 retv = 0;
272 break;
273
274 case IPV6_2292PKTINFO:
275 if (optlen < sizeof(int))
276 goto e_inval;
277 np->rxopt.bits.rxoinfo = valbool;
278 retv = 0;
279 break;
280
281 case IPV6_RECVHOPLIMIT:
282 if (optlen < sizeof(int))
283 goto e_inval;
284 np->rxopt.bits.rxhlim = valbool;
285 retv = 0;
286 break;
287
288 case IPV6_2292HOPLIMIT:
289 if (optlen < sizeof(int))
290 goto e_inval;
291 np->rxopt.bits.rxohlim = valbool;
292 retv = 0;
293 break;
294
295 case IPV6_RECVRTHDR:
296 if (optlen < sizeof(int))
297 goto e_inval;
298 np->rxopt.bits.srcrt = valbool;
299 retv = 0;
300 break;
301
302 case IPV6_2292RTHDR:
303 if (optlen < sizeof(int))
304 goto e_inval;
305 np->rxopt.bits.osrcrt = valbool;
306 retv = 0;
307 break;
308
309 case IPV6_RECVHOPOPTS:
310 if (optlen < sizeof(int))
311 goto e_inval;
312 np->rxopt.bits.hopopts = valbool;
313 retv = 0;
314 break;
315
316 case IPV6_2292HOPOPTS:
317 if (optlen < sizeof(int))
318 goto e_inval;
319 np->rxopt.bits.ohopopts = valbool;
320 retv = 0;
321 break;
322
323 case IPV6_RECVDSTOPTS:
324 if (optlen < sizeof(int))
325 goto e_inval;
326 np->rxopt.bits.dstopts = valbool;
327 retv = 0;
328 break;
329
330 case IPV6_2292DSTOPTS:
331 if (optlen < sizeof(int))
332 goto e_inval;
333 np->rxopt.bits.odstopts = valbool;
334 retv = 0;
335 break;
336
337 case IPV6_TCLASS:
338 if (optlen < sizeof(int))
339 goto e_inval;
340 if (val < -1 || val > 0xff)
341 goto e_inval;
342 /* RFC 3542, 6.5: default traffic class of 0x0 */
343 if (val == -1)
344 val = 0;
345 np->tclass = val;
346 retv = 0;
347 break;
348
349 case IPV6_RECVTCLASS:
350 if (optlen < sizeof(int))
351 goto e_inval;
352 np->rxopt.bits.rxtclass = valbool;
353 retv = 0;
354 break;
355
356 case IPV6_FLOWINFO:
357 if (optlen < sizeof(int))
358 goto e_inval;
359 np->rxopt.bits.rxflow = valbool;
360 retv = 0;
361 break;
362
363 case IPV6_RECVPATHMTU:
364 if (optlen < sizeof(int))
365 goto e_inval;
366 np->rxopt.bits.rxpmtu = valbool;
367 retv = 0;
368 break;
369
370 case IPV6_TRANSPARENT:
371 if (valbool && !ns_capable(net->user_ns, CAP_NET_RAW) &&
372 !ns_capable(net->user_ns, CAP_NET_ADMIN)) {
373 retv = -EPERM;
374 break;
375 }
376 if (optlen < sizeof(int))
377 goto e_inval;
378 /* we don't have a separate transparent bit for IPV6 we use the one in the IPv4 socket */
379 inet_sk(sk)->transparent = valbool;
380 retv = 0;
381 break;
382
383 case IPV6_FREEBIND:
384 if (optlen < sizeof(int))
385 goto e_inval;
386 /* we also don't have a separate freebind bit for IPV6 */
387 inet_sk(sk)->freebind = valbool;
388 retv = 0;
389 break;
390
391 case IPV6_RECVORIGDSTADDR:
392 if (optlen < sizeof(int))
393 goto e_inval;
394 np->rxopt.bits.rxorigdstaddr = valbool;
395 retv = 0;
396 break;
397
398 case IPV6_HOPOPTS:
399 case IPV6_RTHDRDSTOPTS:
400 case IPV6_RTHDR:
401 case IPV6_DSTOPTS:
402 {
403 struct ipv6_txoptions *opt;
404 struct ipv6_opt_hdr *new = NULL;
405
406 /* hop-by-hop / destination options are privileged option */
407 retv = -EPERM;
408 if (optname != IPV6_RTHDR && !ns_capable(net->user_ns, CAP_NET_RAW))
409 break;
410
411 /* remove any sticky options header with a zero option
412 * length, per RFC3542.
413 */
414 if (optlen == 0)
415 optval = NULL;
416 else if (!optval)
417 goto e_inval;
418 else if (optlen < sizeof(struct ipv6_opt_hdr) ||
419 optlen & 0x7 || optlen > 8 * 255)
420 goto e_inval;
421 else {
422 new = memdup_user(optval, optlen);
423 if (IS_ERR(new)) {
424 retv = PTR_ERR(new);
425 break;
426 }
427 if (unlikely(ipv6_optlen(new) > optlen)) {
428 kfree(new);
429 goto e_inval;
430 }
431 }
432
433 opt = rcu_dereference_protected(np->opt,
434 lockdep_sock_is_held(sk));
435 opt = ipv6_renew_options(sk, opt, optname, new);
436 kfree(new);
437 if (IS_ERR(opt)) {
438 retv = PTR_ERR(opt);
439 break;
440 }
441
442 /* routing header option needs extra check */
443 retv = -EINVAL;
444 if (optname == IPV6_RTHDR && opt && opt->srcrt) {
445 struct ipv6_rt_hdr *rthdr = opt->srcrt;
446 switch (rthdr->type) {
447 #if IS_ENABLED(CONFIG_IPV6_MIP6)
448 case IPV6_SRCRT_TYPE_2:
449 if (rthdr->hdrlen != 2 ||
450 rthdr->segments_left != 1)
451 goto sticky_done;
452
453 break;
454 #endif
455 case IPV6_SRCRT_TYPE_4:
456 {
457 struct ipv6_sr_hdr *srh = (struct ipv6_sr_hdr *)
458 opt->srcrt;
459
460 if (!seg6_validate_srh(srh, optlen))
461 goto sticky_done;
462 break;
463 }
464 default:
465 goto sticky_done;
466 }
467 }
468
469 retv = 0;
470 opt = ipv6_update_options(sk, opt);
471 sticky_done:
472 if (opt) {
473 atomic_sub(opt->tot_len, &sk->sk_omem_alloc);
474 txopt_put(opt);
475 }
476 break;
477 }
478
479 case IPV6_PKTINFO:
480 {
481 struct in6_pktinfo pkt;
482
483 if (optlen == 0)
484 goto e_inval;
485 else if (optlen < sizeof(struct in6_pktinfo) || !optval)
486 goto e_inval;
487
488 if (copy_from_user(&pkt, optval, sizeof(struct in6_pktinfo))) {
489 retv = -EFAULT;
490 break;
491 }
492 if (!sk_dev_equal_l3scope(sk, pkt.ipi6_ifindex))
493 goto e_inval;
494
495 np->sticky_pktinfo.ipi6_ifindex = pkt.ipi6_ifindex;
496 np->sticky_pktinfo.ipi6_addr = pkt.ipi6_addr;
497 retv = 0;
498 break;
499 }
500
501 case IPV6_2292PKTOPTIONS:
502 {
503 struct ipv6_txoptions *opt = NULL;
504 struct msghdr msg;
505 struct flowi6 fl6;
506 struct ipcm6_cookie ipc6;
507
508 memset(&fl6, 0, sizeof(fl6));
509 fl6.flowi6_oif = sk->sk_bound_dev_if;
510 fl6.flowi6_mark = sk->sk_mark;
511
512 if (optlen == 0)
513 goto update;
514
515 /* 1K is probably excessive
516 * 1K is surely not enough, 2K per standard header is 16K.
517 */
518 retv = -EINVAL;
519 if (optlen > 64*1024)
520 break;
521
522 opt = sock_kmalloc(sk, sizeof(*opt) + optlen, GFP_KERNEL);
523 retv = -ENOBUFS;
524 if (!opt)
525 break;
526
527 memset(opt, 0, sizeof(*opt));
528 refcount_set(&opt->refcnt, 1);
529 opt->tot_len = sizeof(*opt) + optlen;
530 retv = -EFAULT;
531 if (copy_from_user(opt+1, optval, optlen))
532 goto done;
533
534 msg.msg_controllen = optlen;
535 msg.msg_control = (void *)(opt+1);
536 ipc6.opt = opt;
537
538 retv = ip6_datagram_send_ctl(net, sk, &msg, &fl6, &ipc6);
539 if (retv)
540 goto done;
541 update:
542 retv = 0;
543 opt = ipv6_update_options(sk, opt);
544 done:
545 if (opt) {
546 atomic_sub(opt->tot_len, &sk->sk_omem_alloc);
547 txopt_put(opt);
548 }
549 break;
550 }
551 case IPV6_UNICAST_HOPS:
552 if (optlen < sizeof(int))
553 goto e_inval;
554 if (val > 255 || val < -1)
555 goto e_inval;
556 np->hop_limit = val;
557 retv = 0;
558 break;
559
560 case IPV6_MULTICAST_HOPS:
561 if (sk->sk_type == SOCK_STREAM)
562 break;
563 if (optlen < sizeof(int))
564 goto e_inval;
565 if (val > 255 || val < -1)
566 goto e_inval;
567 np->mcast_hops = (val == -1 ? IPV6_DEFAULT_MCASTHOPS : val);
568 retv = 0;
569 break;
570
571 case IPV6_MULTICAST_LOOP:
572 if (optlen < sizeof(int))
573 goto e_inval;
574 if (val != valbool)
575 goto e_inval;
576 np->mc_loop = valbool;
577 retv = 0;
578 break;
579
580 case IPV6_UNICAST_IF:
581 {
582 struct net_device *dev = NULL;
583 int ifindex;
584
585 if (optlen != sizeof(int))
586 goto e_inval;
587
588 ifindex = (__force int)ntohl((__force __be32)val);
589 if (ifindex == 0) {
590 np->ucast_oif = 0;
591 retv = 0;
592 break;
593 }
594
595 dev = dev_get_by_index(net, ifindex);
596 retv = -EADDRNOTAVAIL;
597 if (!dev)
598 break;
599 dev_put(dev);
600
601 retv = -EINVAL;
602 if (sk->sk_bound_dev_if)
603 break;
604
605 np->ucast_oif = ifindex;
606 retv = 0;
607 break;
608 }
609
610 case IPV6_MULTICAST_IF:
611 if (sk->sk_type == SOCK_STREAM)
612 break;
613 if (optlen < sizeof(int))
614 goto e_inval;
615
616 if (val) {
617 struct net_device *dev;
618 int midx;
619
620 rcu_read_lock();
621
622 dev = dev_get_by_index_rcu(net, val);
623 if (!dev) {
624 rcu_read_unlock();
625 retv = -ENODEV;
626 break;
627 }
628 midx = l3mdev_master_ifindex_rcu(dev);
629
630 rcu_read_unlock();
631
632 if (sk->sk_bound_dev_if &&
633 sk->sk_bound_dev_if != val &&
634 (!midx || midx != sk->sk_bound_dev_if))
635 goto e_inval;
636 }
637 np->mcast_oif = val;
638 retv = 0;
639 break;
640 case IPV6_ADD_MEMBERSHIP:
641 case IPV6_DROP_MEMBERSHIP:
642 {
643 struct ipv6_mreq mreq;
644
645 if (optlen < sizeof(struct ipv6_mreq))
646 goto e_inval;
647
648 retv = -EPROTO;
649 if (inet_sk(sk)->is_icsk)
650 break;
651
652 retv = -EFAULT;
653 if (copy_from_user(&mreq, optval, sizeof(struct ipv6_mreq)))
654 break;
655
656 if (optname == IPV6_ADD_MEMBERSHIP)
657 retv = ipv6_sock_mc_join(sk, mreq.ipv6mr_ifindex, &mreq.ipv6mr_multiaddr);
658 else
659 retv = ipv6_sock_mc_drop(sk, mreq.ipv6mr_ifindex, &mreq.ipv6mr_multiaddr);
660 break;
661 }
662 case IPV6_JOIN_ANYCAST:
663 case IPV6_LEAVE_ANYCAST:
664 {
665 struct ipv6_mreq mreq;
666
667 if (optlen < sizeof(struct ipv6_mreq))
668 goto e_inval;
669
670 retv = -EFAULT;
671 if (copy_from_user(&mreq, optval, sizeof(struct ipv6_mreq)))
672 break;
673
674 if (optname == IPV6_JOIN_ANYCAST)
675 retv = ipv6_sock_ac_join(sk, mreq.ipv6mr_ifindex, &mreq.ipv6mr_acaddr);
676 else
677 retv = ipv6_sock_ac_drop(sk, mreq.ipv6mr_ifindex, &mreq.ipv6mr_acaddr);
678 break;
679 }
680 case IPV6_MULTICAST_ALL:
681 if (optlen < sizeof(int))
682 goto e_inval;
683 np->mc_all = valbool;
684 retv = 0;
685 break;
686
687 case MCAST_JOIN_GROUP:
688 case MCAST_LEAVE_GROUP:
689 {
690 struct group_req greq;
691 struct sockaddr_in6 *psin6;
692
693 if (optlen < sizeof(struct group_req))
694 goto e_inval;
695
696 retv = -EFAULT;
697 if (copy_from_user(&greq, optval, sizeof(struct group_req)))
698 break;
699 if (greq.gr_group.ss_family != AF_INET6) {
700 retv = -EADDRNOTAVAIL;
701 break;
702 }
703 psin6 = (struct sockaddr_in6 *)&greq.gr_group;
704 if (optname == MCAST_JOIN_GROUP)
705 retv = ipv6_sock_mc_join(sk, greq.gr_interface,
706 &psin6->sin6_addr);
707 else
708 retv = ipv6_sock_mc_drop(sk, greq.gr_interface,
709 &psin6->sin6_addr);
710 break;
711 }
712 case MCAST_JOIN_SOURCE_GROUP:
713 case MCAST_LEAVE_SOURCE_GROUP:
714 case MCAST_BLOCK_SOURCE:
715 case MCAST_UNBLOCK_SOURCE:
716 {
717 struct group_source_req greqs;
718 int omode, add;
719
720 if (optlen < sizeof(struct group_source_req))
721 goto e_inval;
722 if (copy_from_user(&greqs, optval, sizeof(greqs))) {
723 retv = -EFAULT;
724 break;
725 }
726 if (greqs.gsr_group.ss_family != AF_INET6 ||
727 greqs.gsr_source.ss_family != AF_INET6) {
728 retv = -EADDRNOTAVAIL;
729 break;
730 }
731 if (optname == MCAST_BLOCK_SOURCE) {
732 omode = MCAST_EXCLUDE;
733 add = 1;
734 } else if (optname == MCAST_UNBLOCK_SOURCE) {
735 omode = MCAST_EXCLUDE;
736 add = 0;
737 } else if (optname == MCAST_JOIN_SOURCE_GROUP) {
738 struct sockaddr_in6 *psin6;
739
740 psin6 = (struct sockaddr_in6 *)&greqs.gsr_group;
741 retv = ipv6_sock_mc_join_ssm(sk, greqs.gsr_interface,
742 &psin6->sin6_addr,
743 MCAST_INCLUDE);
744 /* prior join w/ different source is ok */
745 if (retv && retv != -EADDRINUSE)
746 break;
747 omode = MCAST_INCLUDE;
748 add = 1;
749 } else /* MCAST_LEAVE_SOURCE_GROUP */ {
750 omode = MCAST_INCLUDE;
751 add = 0;
752 }
753 retv = ip6_mc_source(add, omode, sk, &greqs);
754 break;
755 }
756 case MCAST_MSFILTER:
757 {
758 struct group_filter *gsf;
759
760 if (optlen < GROUP_FILTER_SIZE(0))
761 goto e_inval;
762 if (optlen > sysctl_optmem_max) {
763 retv = -ENOBUFS;
764 break;
765 }
766 gsf = memdup_user(optval, optlen);
767 if (IS_ERR(gsf)) {
768 retv = PTR_ERR(gsf);
769 break;
770 }
771 /* numsrc >= (4G-140)/128 overflow in 32 bits */
772 if (gsf->gf_numsrc >= 0x1ffffffU ||
773 gsf->gf_numsrc > sysctl_mld_max_msf) {
774 kfree(gsf);
775 retv = -ENOBUFS;
776 break;
777 }
778 if (GROUP_FILTER_SIZE(gsf->gf_numsrc) > optlen) {
779 kfree(gsf);
780 retv = -EINVAL;
781 break;
782 }
783 retv = ip6_mc_msfilter(sk, gsf);
784 kfree(gsf);
785
786 break;
787 }
788 case IPV6_ROUTER_ALERT:
789 if (optlen < sizeof(int))
790 goto e_inval;
791 retv = ip6_ra_control(sk, val);
792 break;
793 case IPV6_ROUTER_ALERT_ISOLATE:
794 if (optlen < sizeof(int))
795 goto e_inval;
796 np->rtalert_isolate = valbool;
797 retv = 0;
798 break;
799 case IPV6_MTU_DISCOVER:
800 if (optlen < sizeof(int))
801 goto e_inval;
802 if (val < IPV6_PMTUDISC_DONT || val > IPV6_PMTUDISC_OMIT)
803 goto e_inval;
804 np->pmtudisc = val;
805 retv = 0;
806 break;
807 case IPV6_MTU:
808 if (optlen < sizeof(int))
809 goto e_inval;
810 if (val && val < IPV6_MIN_MTU)
811 goto e_inval;
812 np->frag_size = val;
813 retv = 0;
814 break;
815 case IPV6_RECVERR:
816 if (optlen < sizeof(int))
817 goto e_inval;
818 np->recverr = valbool;
819 if (!val)
820 skb_queue_purge(&sk->sk_error_queue);
821 retv = 0;
822 break;
823 case IPV6_FLOWINFO_SEND:
824 if (optlen < sizeof(int))
825 goto e_inval;
826 np->sndflow = valbool;
827 retv = 0;
828 break;
829 case IPV6_FLOWLABEL_MGR:
830 retv = ipv6_flowlabel_opt(sk, optval, optlen);
831 break;
832 case IPV6_IPSEC_POLICY:
833 case IPV6_XFRM_POLICY:
834 retv = -EPERM;
835 if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
836 break;
837 retv = xfrm_user_policy(sk, optname, optval, optlen);
838 break;
839
840 case IPV6_ADDR_PREFERENCES:
841 {
842 unsigned int pref = 0;
843 unsigned int prefmask = ~0;
844
845 if (optlen < sizeof(int))
846 goto e_inval;
847
848 retv = -EINVAL;
849
850 /* check PUBLIC/TMP/PUBTMP_DEFAULT conflicts */
851 switch (val & (IPV6_PREFER_SRC_PUBLIC|
852 IPV6_PREFER_SRC_TMP|
853 IPV6_PREFER_SRC_PUBTMP_DEFAULT)) {
854 case IPV6_PREFER_SRC_PUBLIC:
855 pref |= IPV6_PREFER_SRC_PUBLIC;
856 break;
857 case IPV6_PREFER_SRC_TMP:
858 pref |= IPV6_PREFER_SRC_TMP;
859 break;
860 case IPV6_PREFER_SRC_PUBTMP_DEFAULT:
861 break;
862 case 0:
863 goto pref_skip_pubtmp;
864 default:
865 goto e_inval;
866 }
867
868 prefmask &= ~(IPV6_PREFER_SRC_PUBLIC|
869 IPV6_PREFER_SRC_TMP);
870 pref_skip_pubtmp:
871
872 /* check HOME/COA conflicts */
873 switch (val & (IPV6_PREFER_SRC_HOME|IPV6_PREFER_SRC_COA)) {
874 case IPV6_PREFER_SRC_HOME:
875 break;
876 case IPV6_PREFER_SRC_COA:
877 pref |= IPV6_PREFER_SRC_COA;
878 case 0:
879 goto pref_skip_coa;
880 default:
881 goto e_inval;
882 }
883
884 prefmask &= ~IPV6_PREFER_SRC_COA;
885 pref_skip_coa:
886
887 /* check CGA/NONCGA conflicts */
888 switch (val & (IPV6_PREFER_SRC_CGA|IPV6_PREFER_SRC_NONCGA)) {
889 case IPV6_PREFER_SRC_CGA:
890 case IPV6_PREFER_SRC_NONCGA:
891 case 0:
892 break;
893 default:
894 goto e_inval;
895 }
896
897 np->srcprefs = (np->srcprefs & prefmask) | pref;
898 retv = 0;
899
900 break;
901 }
902 case IPV6_MINHOPCOUNT:
903 if (optlen < sizeof(int))
904 goto e_inval;
905 if (val < 0 || val > 255)
906 goto e_inval;
907 np->min_hopcount = val;
908 retv = 0;
909 break;
910 case IPV6_DONTFRAG:
911 np->dontfrag = valbool;
912 retv = 0;
913 break;
914 case IPV6_AUTOFLOWLABEL:
915 np->autoflowlabel = valbool;
916 np->autoflowlabel_set = 1;
917 retv = 0;
918 break;
919 case IPV6_RECVFRAGSIZE:
920 np->rxopt.bits.recvfragsize = valbool;
921 retv = 0;
922 break;
923 }
924
925 release_sock(sk);
926 if (needs_rtnl)
927 rtnl_unlock();
928
929 return retv;
930
931 e_inval:
932 release_sock(sk);
933 if (needs_rtnl)
934 rtnl_unlock();
935 return -EINVAL;
936 }
937
938 int ipv6_setsockopt(struct sock *sk, int level, int optname,
939 char __user *optval, unsigned int optlen)
940 {
941 int err;
942
943 if (level == SOL_IP && sk->sk_type != SOCK_RAW)
944 return udp_prot.setsockopt(sk, level, optname, optval, optlen);
945
946 if (level != SOL_IPV6)
947 return -ENOPROTOOPT;
948
949 err = do_ipv6_setsockopt(sk, level, optname, optval, optlen);
950 #ifdef CONFIG_NETFILTER
951 /* we need to exclude all possible ENOPROTOOPTs except default case */
952 if (err == -ENOPROTOOPT && optname != IPV6_IPSEC_POLICY &&
953 optname != IPV6_XFRM_POLICY)
954 err = nf_setsockopt(sk, PF_INET6, optname, optval, optlen);
955 #endif
956 return err;
957 }
958 EXPORT_SYMBOL(ipv6_setsockopt);
959
960 #ifdef CONFIG_COMPAT
961 int compat_ipv6_setsockopt(struct sock *sk, int level, int optname,
962 char __user *optval, unsigned int optlen)
963 {
964 int err;
965
966 if (level == SOL_IP && sk->sk_type != SOCK_RAW) {
967 if (udp_prot.compat_setsockopt != NULL)
968 return udp_prot.compat_setsockopt(sk, level, optname,
969 optval, optlen);
970 return udp_prot.setsockopt(sk, level, optname, optval, optlen);
971 }
972
973 if (level != SOL_IPV6)
974 return -ENOPROTOOPT;
975
976 if (optname >= MCAST_JOIN_GROUP && optname <= MCAST_MSFILTER)
977 return compat_mc_setsockopt(sk, level, optname, optval, optlen,
978 ipv6_setsockopt);
979
980 err = do_ipv6_setsockopt(sk, level, optname, optval, optlen);
981 #ifdef CONFIG_NETFILTER
982 /* we need to exclude all possible ENOPROTOOPTs except default case */
983 if (err == -ENOPROTOOPT && optname != IPV6_IPSEC_POLICY &&
984 optname != IPV6_XFRM_POLICY)
985 err = compat_nf_setsockopt(sk, PF_INET6, optname, optval,
986 optlen);
987 #endif
988 return err;
989 }
990 EXPORT_SYMBOL(compat_ipv6_setsockopt);
991 #endif
992
993 static int ipv6_getsockopt_sticky(struct sock *sk, struct ipv6_txoptions *opt,
994 int optname, char __user *optval, int len)
995 {
996 struct ipv6_opt_hdr *hdr;
997
998 if (!opt)
999 return 0;
1000
1001 switch (optname) {
1002 case IPV6_HOPOPTS:
1003 hdr = opt->hopopt;
1004 break;
1005 case IPV6_RTHDRDSTOPTS:
1006 hdr = opt->dst0opt;
1007 break;
1008 case IPV6_RTHDR:
1009 hdr = (struct ipv6_opt_hdr *)opt->srcrt;
1010 break;
1011 case IPV6_DSTOPTS:
1012 hdr = opt->dst1opt;
1013 break;
1014 default:
1015 return -EINVAL; /* should not happen */
1016 }
1017
1018 if (!hdr)
1019 return 0;
1020
1021 len = min_t(unsigned int, len, ipv6_optlen(hdr));
1022 if (copy_to_user(optval, hdr, len))
1023 return -EFAULT;
1024 return len;
1025 }
1026
1027 static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
1028 char __user *optval, int __user *optlen, unsigned int flags)
1029 {
1030 struct ipv6_pinfo *np = inet6_sk(sk);
1031 int len;
1032 int val;
1033
1034 if (ip6_mroute_opt(optname))
1035 return ip6_mroute_getsockopt(sk, optname, optval, optlen);
1036
1037 if (get_user(len, optlen))
1038 return -EFAULT;
1039 switch (optname) {
1040 case IPV6_ADDRFORM:
1041 if (sk->sk_protocol != IPPROTO_UDP &&
1042 sk->sk_protocol != IPPROTO_UDPLITE &&
1043 sk->sk_protocol != IPPROTO_TCP)
1044 return -ENOPROTOOPT;
1045 if (sk->sk_state != TCP_ESTABLISHED)
1046 return -ENOTCONN;
1047 val = sk->sk_family;
1048 break;
1049 case MCAST_MSFILTER:
1050 {
1051 struct group_filter gsf;
1052 int err;
1053
1054 if (len < GROUP_FILTER_SIZE(0))
1055 return -EINVAL;
1056 if (copy_from_user(&gsf, optval, GROUP_FILTER_SIZE(0)))
1057 return -EFAULT;
1058 if (gsf.gf_group.ss_family != AF_INET6)
1059 return -EADDRNOTAVAIL;
1060 lock_sock(sk);
1061 err = ip6_mc_msfget(sk, &gsf,
1062 (struct group_filter __user *)optval, optlen);
1063 release_sock(sk);
1064 return err;
1065 }
1066
1067 case IPV6_2292PKTOPTIONS:
1068 {
1069 struct msghdr msg;
1070 struct sk_buff *skb;
1071
1072 if (sk->sk_type != SOCK_STREAM)
1073 return -ENOPROTOOPT;
1074
1075 msg.msg_control = optval;
1076 msg.msg_controllen = len;
1077 msg.msg_flags = flags;
1078
1079 lock_sock(sk);
1080 skb = np->pktoptions;
1081 if (skb)
1082 ip6_datagram_recv_ctl(sk, &msg, skb);
1083 release_sock(sk);
1084 if (!skb) {
1085 if (np->rxopt.bits.rxinfo) {
1086 struct in6_pktinfo src_info;
1087 src_info.ipi6_ifindex = np->mcast_oif ? np->mcast_oif :
1088 np->sticky_pktinfo.ipi6_ifindex;
1089 src_info.ipi6_addr = np->mcast_oif ? sk->sk_v6_daddr : np->sticky_pktinfo.ipi6_addr;
1090 put_cmsg(&msg, SOL_IPV6, IPV6_PKTINFO, sizeof(src_info), &src_info);
1091 }
1092 if (np->rxopt.bits.rxhlim) {
1093 int hlim = np->mcast_hops;
1094 put_cmsg(&msg, SOL_IPV6, IPV6_HOPLIMIT, sizeof(hlim), &hlim);
1095 }
1096 if (np->rxopt.bits.rxtclass) {
1097 int tclass = (int)ip6_tclass(np->rcv_flowinfo);
1098
1099 put_cmsg(&msg, SOL_IPV6, IPV6_TCLASS, sizeof(tclass), &tclass);
1100 }
1101 if (np->rxopt.bits.rxoinfo) {
1102 struct in6_pktinfo src_info;
1103 src_info.ipi6_ifindex = np->mcast_oif ? np->mcast_oif :
1104 np->sticky_pktinfo.ipi6_ifindex;
1105 src_info.ipi6_addr = np->mcast_oif ? sk->sk_v6_daddr :
1106 np->sticky_pktinfo.ipi6_addr;
1107 put_cmsg(&msg, SOL_IPV6, IPV6_2292PKTINFO, sizeof(src_info), &src_info);
1108 }
1109 if (np->rxopt.bits.rxohlim) {
1110 int hlim = np->mcast_hops;
1111 put_cmsg(&msg, SOL_IPV6, IPV6_2292HOPLIMIT, sizeof(hlim), &hlim);
1112 }
1113 if (np->rxopt.bits.rxflow) {
1114 __be32 flowinfo = np->rcv_flowinfo;
1115
1116 put_cmsg(&msg, SOL_IPV6, IPV6_FLOWINFO, sizeof(flowinfo), &flowinfo);
1117 }
1118 }
1119 len -= msg.msg_controllen;
1120 return put_user(len, optlen);
1121 }
1122 case IPV6_MTU:
1123 {
1124 struct dst_entry *dst;
1125
1126 val = 0;
1127 rcu_read_lock();
1128 dst = __sk_dst_get(sk);
1129 if (dst)
1130 val = dst_mtu(dst);
1131 rcu_read_unlock();
1132 if (!val)
1133 return -ENOTCONN;
1134 break;
1135 }
1136
1137 case IPV6_V6ONLY:
1138 val = sk->sk_ipv6only;
1139 break;
1140
1141 case IPV6_RECVPKTINFO:
1142 val = np->rxopt.bits.rxinfo;
1143 break;
1144
1145 case IPV6_2292PKTINFO:
1146 val = np->rxopt.bits.rxoinfo;
1147 break;
1148
1149 case IPV6_RECVHOPLIMIT:
1150 val = np->rxopt.bits.rxhlim;
1151 break;
1152
1153 case IPV6_2292HOPLIMIT:
1154 val = np->rxopt.bits.rxohlim;
1155 break;
1156
1157 case IPV6_RECVRTHDR:
1158 val = np->rxopt.bits.srcrt;
1159 break;
1160
1161 case IPV6_2292RTHDR:
1162 val = np->rxopt.bits.osrcrt;
1163 break;
1164
1165 case IPV6_HOPOPTS:
1166 case IPV6_RTHDRDSTOPTS:
1167 case IPV6_RTHDR:
1168 case IPV6_DSTOPTS:
1169 {
1170 struct ipv6_txoptions *opt;
1171
1172 lock_sock(sk);
1173 opt = rcu_dereference_protected(np->opt,
1174 lockdep_sock_is_held(sk));
1175 len = ipv6_getsockopt_sticky(sk, opt, optname, optval, len);
1176 release_sock(sk);
1177 /* check if ipv6_getsockopt_sticky() returns err code */
1178 if (len < 0)
1179 return len;
1180 return put_user(len, optlen);
1181 }
1182
1183 case IPV6_RECVHOPOPTS:
1184 val = np->rxopt.bits.hopopts;
1185 break;
1186
1187 case IPV6_2292HOPOPTS:
1188 val = np->rxopt.bits.ohopopts;
1189 break;
1190
1191 case IPV6_RECVDSTOPTS:
1192 val = np->rxopt.bits.dstopts;
1193 break;
1194
1195 case IPV6_2292DSTOPTS:
1196 val = np->rxopt.bits.odstopts;
1197 break;
1198
1199 case IPV6_TCLASS:
1200 val = np->tclass;
1201 break;
1202
1203 case IPV6_RECVTCLASS:
1204 val = np->rxopt.bits.rxtclass;
1205 break;
1206
1207 case IPV6_FLOWINFO:
1208 val = np->rxopt.bits.rxflow;
1209 break;
1210
1211 case IPV6_RECVPATHMTU:
1212 val = np->rxopt.bits.rxpmtu;
1213 break;
1214
1215 case IPV6_PATHMTU:
1216 {
1217 struct dst_entry *dst;
1218 struct ip6_mtuinfo mtuinfo;
1219
1220 if (len < sizeof(mtuinfo))
1221 return -EINVAL;
1222
1223 len = sizeof(mtuinfo);
1224 memset(&mtuinfo, 0, sizeof(mtuinfo));
1225
1226 rcu_read_lock();
1227 dst = __sk_dst_get(sk);
1228 if (dst)
1229 mtuinfo.ip6m_mtu = dst_mtu(dst);
1230 rcu_read_unlock();
1231 if (!mtuinfo.ip6m_mtu)
1232 return -ENOTCONN;
1233
1234 if (put_user(len, optlen))
1235 return -EFAULT;
1236 if (copy_to_user(optval, &mtuinfo, len))
1237 return -EFAULT;
1238
1239 return 0;
1240 }
1241
1242 case IPV6_TRANSPARENT:
1243 val = inet_sk(sk)->transparent;
1244 break;
1245
1246 case IPV6_FREEBIND:
1247 val = inet_sk(sk)->freebind;
1248 break;
1249
1250 case IPV6_RECVORIGDSTADDR:
1251 val = np->rxopt.bits.rxorigdstaddr;
1252 break;
1253
1254 case IPV6_UNICAST_HOPS:
1255 case IPV6_MULTICAST_HOPS:
1256 {
1257 struct dst_entry *dst;
1258
1259 if (optname == IPV6_UNICAST_HOPS)
1260 val = np->hop_limit;
1261 else
1262 val = np->mcast_hops;
1263
1264 if (val < 0) {
1265 rcu_read_lock();
1266 dst = __sk_dst_get(sk);
1267 if (dst)
1268 val = ip6_dst_hoplimit(dst);
1269 rcu_read_unlock();
1270 }
1271
1272 if (val < 0)
1273 val = sock_net(sk)->ipv6.devconf_all->hop_limit;
1274 break;
1275 }
1276
1277 case IPV6_MULTICAST_LOOP:
1278 val = np->mc_loop;
1279 break;
1280
1281 case IPV6_MULTICAST_IF:
1282 val = np->mcast_oif;
1283 break;
1284
1285 case IPV6_MULTICAST_ALL:
1286 val = np->mc_all;
1287 break;
1288
1289 case IPV6_UNICAST_IF:
1290 val = (__force int)htonl((__u32) np->ucast_oif);
1291 break;
1292
1293 case IPV6_MTU_DISCOVER:
1294 val = np->pmtudisc;
1295 break;
1296
1297 case IPV6_RECVERR:
1298 val = np->recverr;
1299 break;
1300
1301 case IPV6_FLOWINFO_SEND:
1302 val = np->sndflow;
1303 break;
1304
1305 case IPV6_FLOWLABEL_MGR:
1306 {
1307 struct in6_flowlabel_req freq;
1308 int flags;
1309
1310 if (len < sizeof(freq))
1311 return -EINVAL;
1312
1313 if (copy_from_user(&freq, optval, sizeof(freq)))
1314 return -EFAULT;
1315
1316 if (freq.flr_action != IPV6_FL_A_GET)
1317 return -EINVAL;
1318
1319 len = sizeof(freq);
1320 flags = freq.flr_flags;
1321
1322 memset(&freq, 0, sizeof(freq));
1323
1324 val = ipv6_flowlabel_opt_get(sk, &freq, flags);
1325 if (val < 0)
1326 return val;
1327
1328 if (put_user(len, optlen))
1329 return -EFAULT;
1330 if (copy_to_user(optval, &freq, len))
1331 return -EFAULT;
1332
1333 return 0;
1334 }
1335
1336 case IPV6_ADDR_PREFERENCES:
1337 val = 0;
1338
1339 if (np->srcprefs & IPV6_PREFER_SRC_TMP)
1340 val |= IPV6_PREFER_SRC_TMP;
1341 else if (np->srcprefs & IPV6_PREFER_SRC_PUBLIC)
1342 val |= IPV6_PREFER_SRC_PUBLIC;
1343 else {
1344 /* XXX: should we return system default? */
1345 val |= IPV6_PREFER_SRC_PUBTMP_DEFAULT;
1346 }
1347
1348 if (np->srcprefs & IPV6_PREFER_SRC_COA)
1349 val |= IPV6_PREFER_SRC_COA;
1350 else
1351 val |= IPV6_PREFER_SRC_HOME;
1352 break;
1353
1354 case IPV6_MINHOPCOUNT:
1355 val = np->min_hopcount;
1356 break;
1357
1358 case IPV6_DONTFRAG:
1359 val = np->dontfrag;
1360 break;
1361
1362 case IPV6_AUTOFLOWLABEL:
1363 val = ip6_autoflowlabel(sock_net(sk), np);
1364 break;
1365
1366 case IPV6_RECVFRAGSIZE:
1367 val = np->rxopt.bits.recvfragsize;
1368 break;
1369
1370 case IPV6_ROUTER_ALERT_ISOLATE:
1371 val = np->rtalert_isolate;
1372 break;
1373
1374 default:
1375 return -ENOPROTOOPT;
1376 }
1377 len = min_t(unsigned int, sizeof(int), len);
1378 if (put_user(len, optlen))
1379 return -EFAULT;
1380 if (copy_to_user(optval, &val, len))
1381 return -EFAULT;
1382 return 0;
1383 }
1384
1385 int ipv6_getsockopt(struct sock *sk, int level, int optname,
1386 char __user *optval, int __user *optlen)
1387 {
1388 int err;
1389
1390 if (level == SOL_IP && sk->sk_type != SOCK_RAW)
1391 return udp_prot.getsockopt(sk, level, optname, optval, optlen);
1392
1393 if (level != SOL_IPV6)
1394 return -ENOPROTOOPT;
1395
1396 err = do_ipv6_getsockopt(sk, level, optname, optval, optlen, 0);
1397 #ifdef CONFIG_NETFILTER
1398 /* we need to exclude all possible ENOPROTOOPTs except default case */
1399 if (err == -ENOPROTOOPT && optname != IPV6_2292PKTOPTIONS) {
1400 int len;
1401
1402 if (get_user(len, optlen))
1403 return -EFAULT;
1404
1405 err = nf_getsockopt(sk, PF_INET6, optname, optval, &len);
1406 if (err >= 0)
1407 err = put_user(len, optlen);
1408 }
1409 #endif
1410 return err;
1411 }
1412 EXPORT_SYMBOL(ipv6_getsockopt);
1413
1414 #ifdef CONFIG_COMPAT
1415 int compat_ipv6_getsockopt(struct sock *sk, int level, int optname,
1416 char __user *optval, int __user *optlen)
1417 {
1418 int err;
1419
1420 if (level == SOL_IP && sk->sk_type != SOCK_RAW) {
1421 if (udp_prot.compat_getsockopt != NULL)
1422 return udp_prot.compat_getsockopt(sk, level, optname,
1423 optval, optlen);
1424 return udp_prot.getsockopt(sk, level, optname, optval, optlen);
1425 }
1426
1427 if (level != SOL_IPV6)
1428 return -ENOPROTOOPT;
1429
1430 if (optname == MCAST_MSFILTER)
1431 return compat_mc_getsockopt(sk, level, optname, optval, optlen,
1432 ipv6_getsockopt);
1433
1434 err = do_ipv6_getsockopt(sk, level, optname, optval, optlen,
1435 MSG_CMSG_COMPAT);
1436 #ifdef CONFIG_NETFILTER
1437 /* we need to exclude all possible ENOPROTOOPTs except default case */
1438 if (err == -ENOPROTOOPT && optname != IPV6_2292PKTOPTIONS) {
1439 int len;
1440
1441 if (get_user(len, optlen))
1442 return -EFAULT;
1443
1444 err = compat_nf_getsockopt(sk, PF_INET6, optname, optval, &len);
1445 if (err >= 0)
1446 err = put_user(len, optlen);
1447 }
1448 #endif
1449 return err;
1450 }
1451 EXPORT_SYMBOL(compat_ipv6_getsockopt);
1452 #endif
Linux with added FPC-III support