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ALSA: HDA: Remove quirk for an HP device
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / include / net / ipv6.h
blob34200f9e6805c1393cf348e2d4f3d3ff57544b8f
1 /*
2 * Linux INET6 implementation
3 *
4 * Authors:
5 * Pedro Roque <roque@di.fc.ul.pt>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version
10 * 2 of the License, or (at your option) any later version.
11 */
12
13 #ifndef _NET_IPV6_H
14 #define _NET_IPV6_H
15
16 #include <linux/ipv6.h>
17 #include <linux/hardirq.h>
18 #include <net/if_inet6.h>
19 #include <net/ndisc.h>
20 #include <net/flow.h>
21 #include <net/snmp.h>
22
23 #define SIN6_LEN_RFC2133 24
24
25 #define IPV6_MAXPLEN 65535
26
27 /*
28 * NextHeader field of IPv6 header
29 */
30
31 #define NEXTHDR_HOP 0 /* Hop-by-hop option header. */
32 #define NEXTHDR_TCP 6 /* TCP segment. */
33 #define NEXTHDR_UDP 17 /* UDP message. */
34 #define NEXTHDR_IPV6 41 /* IPv6 in IPv6 */
35 #define NEXTHDR_ROUTING 43 /* Routing header. */
36 #define NEXTHDR_FRAGMENT 44 /* Fragmentation/reassembly header. */
37 #define NEXTHDR_ESP 50 /* Encapsulating security payload. */
38 #define NEXTHDR_AUTH 51 /* Authentication header. */
39 #define NEXTHDR_ICMP 58 /* ICMP for IPv6. */
40 #define NEXTHDR_NONE 59 /* No next header */
41 #define NEXTHDR_DEST 60 /* Destination options header. */
42 #define NEXTHDR_MOBILITY 135 /* Mobility header. */
43
44 #define NEXTHDR_MAX 255
45
46
47
48 #define IPV6_DEFAULT_HOPLIMIT 64
49 #define IPV6_DEFAULT_MCASTHOPS 1
50
51 /*
52 * Addr type
53 *
54 * type - unicast | multicast
55 * scope - local | site | global
56 * v4 - compat
57 * v4mapped
58 * any
59 * loopback
60 */
61
62 #define IPV6_ADDR_ANY 0x0000U
63
64 #define IPV6_ADDR_UNICAST 0x0001U
65 #define IPV6_ADDR_MULTICAST 0x0002U
66
67 #define IPV6_ADDR_LOOPBACK 0x0010U
68 #define IPV6_ADDR_LINKLOCAL 0x0020U
69 #define IPV6_ADDR_SITELOCAL 0x0040U
70
71 #define IPV6_ADDR_COMPATv4 0x0080U
72
73 #define IPV6_ADDR_SCOPE_MASK 0x00f0U
74
75 #define IPV6_ADDR_MAPPED 0x1000U
76
77 /*
78 * Addr scopes
79 */
80 #ifdef __KERNEL__
81 #define IPV6_ADDR_MC_SCOPE(a) \
82 ((a)->s6_addr[1] & 0x0f) /* nonstandard */
83 #define __IPV6_ADDR_SCOPE_INVALID -1
84 #endif
85 #define IPV6_ADDR_SCOPE_NODELOCAL 0x01
86 #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02
87 #define IPV6_ADDR_SCOPE_SITELOCAL 0x05
88 #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08
89 #define IPV6_ADDR_SCOPE_GLOBAL 0x0e
90
91 /*
92 * Addr flags
93 */
94 #ifdef __KERNEL__
95 #define IPV6_ADDR_MC_FLAG_TRANSIENT(a) \
96 ((a)->s6_addr[1] & 0x10)
97 #define IPV6_ADDR_MC_FLAG_PREFIX(a) \
98 ((a)->s6_addr[1] & 0x20)
99 #define IPV6_ADDR_MC_FLAG_RENDEZVOUS(a) \
100 ((a)->s6_addr[1] & 0x40)
101 #endif
102
103 /*
104 * fragmentation header
105 */
106
107 struct frag_hdr {
108 __u8 nexthdr;
109 __u8 reserved;
110 __be16 frag_off;
111 __be32 identification;
112 };
113
114 #define IP6_MF 0x0001
115
116 #ifdef __KERNEL__
117
118 #include <net/sock.h>
119
120 /* sysctls */
121 extern int sysctl_mld_max_msf;
122 extern struct ctl_path net_ipv6_ctl_path[];
123
124 #define _DEVINC(net, statname, modifier, idev, field) \
125 ({ \
126 struct inet6_dev *_idev = (idev); \
127 if (likely(_idev != NULL)) \
128 SNMP_INC_STATS##modifier((_idev)->stats.statname, (field)); \
129 SNMP_INC_STATS##modifier((net)->mib.statname##_statistics, (field));\
130 })
131
132 #define _DEVADD(net, statname, modifier, idev, field, val) \
133 ({ \
134 struct inet6_dev *_idev = (idev); \
135 if (likely(_idev != NULL)) \
136 SNMP_ADD_STATS##modifier((_idev)->stats.statname, (field), (val)); \
137 SNMP_ADD_STATS##modifier((net)->mib.statname##_statistics, (field), (val));\
138 })
139
140 #define _DEVUPD(net, statname, modifier, idev, field, val) \
141 ({ \
142 struct inet6_dev *_idev = (idev); \
143 if (likely(_idev != NULL)) \
144 SNMP_UPD_PO_STATS##modifier((_idev)->stats.statname, field, (val)); \
145 SNMP_UPD_PO_STATS##modifier((net)->mib.statname##_statistics, field, (val));\
146 })
147
148 /* MIBs */
149
150 #define IP6_INC_STATS(net, idev,field) \
151 _DEVINC(net, ipv6, 64, idev, field)
152 #define IP6_INC_STATS_BH(net, idev,field) \
153 _DEVINC(net, ipv6, 64_BH, idev, field)
154 #define IP6_ADD_STATS(net, idev,field,val) \
155 _DEVADD(net, ipv6, 64, idev, field, val)
156 #define IP6_ADD_STATS_BH(net, idev,field,val) \
157 _DEVADD(net, ipv6, 64_BH, idev, field, val)
158 #define IP6_UPD_PO_STATS(net, idev,field,val) \
159 _DEVUPD(net, ipv6, 64, idev, field, val)
160 #define IP6_UPD_PO_STATS_BH(net, idev,field,val) \
161 _DEVUPD(net, ipv6, 64_BH, idev, field, val)
162 #define ICMP6_INC_STATS(net, idev, field) \
163 _DEVINC(net, icmpv6, , idev, field)
164 #define ICMP6_INC_STATS_BH(net, idev, field) \
165 _DEVINC(net, icmpv6, _BH, idev, field)
166
167 #define ICMP6MSGOUT_INC_STATS(net, idev, field) \
168 _DEVINC(net, icmpv6msg, , idev, field +256)
169 #define ICMP6MSGOUT_INC_STATS_BH(net, idev, field) \
170 _DEVINC(net, icmpv6msg, _BH, idev, field +256)
171 #define ICMP6MSGIN_INC_STATS_BH(net, idev, field) \
172 _DEVINC(net, icmpv6msg, _BH, idev, field)
173
174 struct ip6_ra_chain {
175 struct ip6_ra_chain *next;
176 struct sock *sk;
177 int sel;
178 void (*destructor)(struct sock *);
179 };
180
181 extern struct ip6_ra_chain *ip6_ra_chain;
182 extern rwlock_t ip6_ra_lock;
183
184 /*
185 This structure is prepared by protocol, when parsing
186 ancillary data and passed to IPv6.
187 */
188
189 struct ipv6_txoptions {
190 /* Length of this structure */
191 int tot_len;
192
193 /* length of extension headers */
194
195 __u16 opt_flen; /* after fragment hdr */
196 __u16 opt_nflen; /* before fragment hdr */
197
198 struct ipv6_opt_hdr *hopopt;
199 struct ipv6_opt_hdr *dst0opt;
200 struct ipv6_rt_hdr *srcrt; /* Routing Header */
201 struct ipv6_opt_hdr *dst1opt;
202
203 /* Option buffer, as read by IPV6_PKTOPTIONS, starts here. */
204 };
205
206 struct ip6_flowlabel {
207 struct ip6_flowlabel *next;
208 __be32 label;
209 atomic_t users;
210 struct in6_addr dst;
211 struct ipv6_txoptions *opt;
212 unsigned long linger;
213 u8 share;
214 u32 owner;
215 unsigned long lastuse;
216 unsigned long expires;
217 struct net *fl_net;
218 };
219
220 #define IPV6_FLOWINFO_MASK cpu_to_be32(0x0FFFFFFF)
221 #define IPV6_FLOWLABEL_MASK cpu_to_be32(0x000FFFFF)
222
223 struct ipv6_fl_socklist {
224 struct ipv6_fl_socklist *next;
225 struct ip6_flowlabel *fl;
226 };
227
228 extern struct ip6_flowlabel *fl6_sock_lookup(struct sock *sk, __be32 label);
229 extern struct ipv6_txoptions *fl6_merge_options(struct ipv6_txoptions * opt_space,
230 struct ip6_flowlabel * fl,
231 struct ipv6_txoptions * fopt);
232 extern void fl6_free_socklist(struct sock *sk);
233 extern int ipv6_flowlabel_opt(struct sock *sk, char __user *optval, int optlen);
234 extern int ip6_flowlabel_init(void);
235 extern void ip6_flowlabel_cleanup(void);
236
237 static inline void fl6_sock_release(struct ip6_flowlabel *fl)
238 {
239 if (fl)
240 atomic_dec(&fl->users);
241 }
242
243 extern int ip6_ra_control(struct sock *sk, int sel);
244
245 extern int ipv6_parse_hopopts(struct sk_buff *skb);
246
247 extern struct ipv6_txoptions * ipv6_dup_options(struct sock *sk, struct ipv6_txoptions *opt);
248 extern struct ipv6_txoptions * ipv6_renew_options(struct sock *sk, struct ipv6_txoptions *opt,
249 int newtype,
250 struct ipv6_opt_hdr __user *newopt,
251 int newoptlen);
252 struct ipv6_txoptions *ipv6_fixup_options(struct ipv6_txoptions *opt_space,
253 struct ipv6_txoptions *opt);
254
255 extern int ipv6_opt_accepted(struct sock *sk, struct sk_buff *skb);
256
257 int ip6_frag_nqueues(struct net *net);
258 int ip6_frag_mem(struct net *net);
259
260 #define IPV6_FRAG_HIGH_THRESH (256 * 1024) /* 262144 */
261 #define IPV6_FRAG_LOW_THRESH (192 * 1024) /* 196608 */
262 #define IPV6_FRAG_TIMEOUT (60 * HZ) /* 60 seconds */
263
264 extern int __ipv6_addr_type(const struct in6_addr *addr);
265 static inline int ipv6_addr_type(const struct in6_addr *addr)
266 {
267 return __ipv6_addr_type(addr) & 0xffff;
268 }
269
270 static inline int ipv6_addr_scope(const struct in6_addr *addr)
271 {
272 return __ipv6_addr_type(addr) & IPV6_ADDR_SCOPE_MASK;
273 }
274
275 static inline int __ipv6_addr_src_scope(int type)
276 {
277 return (type == IPV6_ADDR_ANY) ? __IPV6_ADDR_SCOPE_INVALID : (type >> 16);
278 }
279
280 static inline int ipv6_addr_src_scope(const struct in6_addr *addr)
281 {
282 return __ipv6_addr_src_scope(__ipv6_addr_type(addr));
283 }
284
285 static inline int ipv6_addr_cmp(const struct in6_addr *a1, const struct in6_addr *a2)
286 {
287 return memcmp(a1, a2, sizeof(struct in6_addr));
288 }
289
290 static inline int
291 ipv6_masked_addr_cmp(const struct in6_addr *a1, const struct in6_addr *m,
292 const struct in6_addr *a2)
293 {
294 return !!(((a1->s6_addr32[0] ^ a2->s6_addr32[0]) & m->s6_addr32[0]) |
295 ((a1->s6_addr32[1] ^ a2->s6_addr32[1]) & m->s6_addr32[1]) |
296 ((a1->s6_addr32[2] ^ a2->s6_addr32[2]) & m->s6_addr32[2]) |
297 ((a1->s6_addr32[3] ^ a2->s6_addr32[3]) & m->s6_addr32[3]));
298 }
299
300 static inline void ipv6_addr_copy(struct in6_addr *a1, const struct in6_addr *a2)
301 {
302 memcpy(a1, a2, sizeof(struct in6_addr));
303 }
304
305 static inline void ipv6_addr_prefix(struct in6_addr *pfx,
306 const struct in6_addr *addr,
307 int plen)
308 {
309 /* caller must guarantee 0 <= plen <= 128 */
310 int o = plen >> 3,
311 b = plen & 0x7;
312
313 memset(pfx->s6_addr, 0, sizeof(pfx->s6_addr));
314 memcpy(pfx->s6_addr, addr, o);
315 if (b != 0)
316 pfx->s6_addr[o] = addr->s6_addr[o] & (0xff00 >> b);
317 }
318
319 static inline void ipv6_addr_set(struct in6_addr *addr,
320 __be32 w1, __be32 w2,
321 __be32 w3, __be32 w4)
322 {
323 addr->s6_addr32[0] = w1;
324 addr->s6_addr32[1] = w2;
325 addr->s6_addr32[2] = w3;
326 addr->s6_addr32[3] = w4;
327 }
328
329 static inline int ipv6_addr_equal(const struct in6_addr *a1,
330 const struct in6_addr *a2)
331 {
332 return ((a1->s6_addr32[0] ^ a2->s6_addr32[0]) |
333 (a1->s6_addr32[1] ^ a2->s6_addr32[1]) |
334 (a1->s6_addr32[2] ^ a2->s6_addr32[2]) |
335 (a1->s6_addr32[3] ^ a2->s6_addr32[3])) == 0;
336 }
337
338 static inline int __ipv6_prefix_equal(const __be32 *a1, const __be32 *a2,
339 unsigned int prefixlen)
340 {
341 unsigned pdw, pbi;
342
343 /* check complete u32 in prefix */
344 pdw = prefixlen >> 5;
345 if (pdw && memcmp(a1, a2, pdw << 2))
346 return 0;
347
348 /* check incomplete u32 in prefix */
349 pbi = prefixlen & 0x1f;
350 if (pbi && ((a1[pdw] ^ a2[pdw]) & htonl((0xffffffff) << (32 - pbi))))
351 return 0;
352
353 return 1;
354 }
355
356 static inline int ipv6_prefix_equal(const struct in6_addr *a1,
357 const struct in6_addr *a2,
358 unsigned int prefixlen)
359 {
360 return __ipv6_prefix_equal(a1->s6_addr32, a2->s6_addr32,
361 prefixlen);
362 }
363
364 struct inet_frag_queue;
365
366 enum ip6_defrag_users {
367 IP6_DEFRAG_LOCAL_DELIVER,
368 IP6_DEFRAG_CONNTRACK_IN,
369 __IP6_DEFRAG_CONNTRACK_IN = IP6_DEFRAG_CONNTRACK_IN + USHRT_MAX,
370 IP6_DEFRAG_CONNTRACK_OUT,
371 __IP6_DEFRAG_CONNTRACK_OUT = IP6_DEFRAG_CONNTRACK_OUT + USHRT_MAX,
372 IP6_DEFRAG_CONNTRACK_BRIDGE_IN,
373 __IP6_DEFRAG_CONNTRACK_BRIDGE_IN = IP6_DEFRAG_CONNTRACK_BRIDGE_IN + USHRT_MAX,
374 };
375
376 struct ip6_create_arg {
377 __be32 id;
378 u32 user;
379 struct in6_addr *src;
380 struct in6_addr *dst;
381 };
382
383 void ip6_frag_init(struct inet_frag_queue *q, void *a);
384 int ip6_frag_match(struct inet_frag_queue *q, void *a);
385
386 static inline int ipv6_addr_any(const struct in6_addr *a)
387 {
388 return (a->s6_addr32[0] | a->s6_addr32[1] |
389 a->s6_addr32[2] | a->s6_addr32[3]) == 0;
390 }
391
392 static inline int ipv6_addr_loopback(const struct in6_addr *a)
393 {
394 return (a->s6_addr32[0] | a->s6_addr32[1] |
395 a->s6_addr32[2] | (a->s6_addr32[3] ^ htonl(1))) == 0;
396 }
397
398 static inline int ipv6_addr_v4mapped(const struct in6_addr *a)
399 {
400 return (a->s6_addr32[0] | a->s6_addr32[1] |
401 (a->s6_addr32[2] ^ htonl(0x0000ffff))) == 0;
402 }
403
404 /*
405 * Check for a RFC 4843 ORCHID address
406 * (Overlay Routable Cryptographic Hash Identifiers)
407 */
408 static inline int ipv6_addr_orchid(const struct in6_addr *a)
409 {
410 return (a->s6_addr32[0] & htonl(0xfffffff0)) == htonl(0x20010010);
411 }
412
413 static inline void ipv6_addr_set_v4mapped(const __be32 addr,
414 struct in6_addr *v4mapped)
415 {
416 ipv6_addr_set(v4mapped,
417 0, 0,
418 htonl(0x0000FFFF),
419 addr);
420 }
421
422 /*
423 * find the first different bit between two addresses
424 * length of address must be a multiple of 32bits
425 */
426 static inline int __ipv6_addr_diff(const void *token1, const void *token2, int addrlen)
427 {
428 const __be32 *a1 = token1, *a2 = token2;
429 int i;
430
431 addrlen >>= 2;
432
433 for (i = 0; i < addrlen; i++) {
434 __be32 xb = a1[i] ^ a2[i];
435 if (xb)
436 return i * 32 + 31 - __fls(ntohl(xb));
437 }
438
439 /*
440 * we should *never* get to this point since that
441 * would mean the addrs are equal
442 *
443 * However, we do get to it 8) And exacly, when
444 * addresses are equal 8)
445 *
446 * ip route add 1111::/128 via ...
447 * ip route add 1111::/64 via ...
448 * and we are here.
449 *
450 * Ideally, this function should stop comparison
451 * at prefix length. It does not, but it is still OK,
452 * if returned value is greater than prefix length.
453 * --ANK (980803)
454 */
455 return addrlen << 5;
456 }
457
458 static inline int ipv6_addr_diff(const struct in6_addr *a1, const struct in6_addr *a2)
459 {
460 return __ipv6_addr_diff(a1, a2, sizeof(struct in6_addr));
461 }
462
463 static __inline__ void ipv6_select_ident(struct frag_hdr *fhdr)
464 {
465 static u32 ipv6_fragmentation_id = 1;
466 static DEFINE_SPINLOCK(ip6_id_lock);
467
468 spin_lock_bh(&ip6_id_lock);
469 fhdr->identification = htonl(ipv6_fragmentation_id);
470 if (++ipv6_fragmentation_id == 0)
471 ipv6_fragmentation_id = 1;
472 spin_unlock_bh(&ip6_id_lock);
473 }
474
475 /*
476 * Prototypes exported by ipv6
477 */
478
479 /*
480 * rcv function (called from netdevice level)
481 */
482
483 extern int ipv6_rcv(struct sk_buff *skb,
484 struct net_device *dev,
485 struct packet_type *pt,
486 struct net_device *orig_dev);
487
488 extern int ip6_rcv_finish(struct sk_buff *skb);
489
490 /*
491 * upper-layer output functions
492 */
493 extern int ip6_xmit(struct sock *sk,
494 struct sk_buff *skb,
495 struct flowi6 *fl6,
496 struct ipv6_txoptions *opt);
497
498 extern int ip6_nd_hdr(struct sock *sk,
499 struct sk_buff *skb,
500 struct net_device *dev,
501 const struct in6_addr *saddr,
502 const struct in6_addr *daddr,
503 int proto, int len);
504
505 extern int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr);
506
507 extern int ip6_append_data(struct sock *sk,
508 int getfrag(void *from, char *to, int offset, int len, int odd, struct sk_buff *skb),
509 void *from,
510 int length,
511 int transhdrlen,
512 int hlimit,
513 int tclass,
514 struct ipv6_txoptions *opt,
515 struct flowi6 *fl6,
516 struct rt6_info *rt,
517 unsigned int flags,
518 int dontfrag);
519
520 extern int ip6_push_pending_frames(struct sock *sk);
521
522 extern void ip6_flush_pending_frames(struct sock *sk);
523
524 extern int ip6_dst_lookup(struct sock *sk,
525 struct dst_entry **dst,
526 struct flowi6 *fl6);
527 extern struct dst_entry * ip6_dst_lookup_flow(struct sock *sk,
528 struct flowi6 *fl6,
529 const struct in6_addr *final_dst,
530 bool can_sleep);
531 extern struct dst_entry * ip6_sk_dst_lookup_flow(struct sock *sk,
532 struct flowi6 *fl6,
533 const struct in6_addr *final_dst,
534 bool can_sleep);
535 extern struct dst_entry * ip6_blackhole_route(struct net *net,
536 struct dst_entry *orig_dst);
537
538 /*
539 * skb processing functions
540 */
541
542 extern int ip6_output(struct sk_buff *skb);
543 extern int ip6_forward(struct sk_buff *skb);
544 extern int ip6_input(struct sk_buff *skb);
545 extern int ip6_mc_input(struct sk_buff *skb);
546
547 extern int __ip6_local_out(struct sk_buff *skb);
548 extern int ip6_local_out(struct sk_buff *skb);
549
550 /*
551 * Extension header (options) processing
552 */
553
554 extern void ipv6_push_nfrag_opts(struct sk_buff *skb,
555 struct ipv6_txoptions *opt,
556 u8 *proto,
557 struct in6_addr **daddr_p);
558 extern void ipv6_push_frag_opts(struct sk_buff *skb,
559 struct ipv6_txoptions *opt,
560 u8 *proto);
561
562 extern int ipv6_skip_exthdr(const struct sk_buff *, int start,
563 u8 *nexthdrp);
564
565 extern int ipv6_ext_hdr(u8 nexthdr);
566
567 extern int ipv6_find_tlv(struct sk_buff *skb, int offset, int type);
568
569 extern struct in6_addr *fl6_update_dst(struct flowi6 *fl6,
570 const struct ipv6_txoptions *opt,
571 struct in6_addr *orig);
572
573 /*
574 * socket options (ipv6_sockglue.c)
575 */
576
577 extern int ipv6_setsockopt(struct sock *sk, int level,
578 int optname,
579 char __user *optval,
580 unsigned int optlen);
581 extern int ipv6_getsockopt(struct sock *sk, int level,
582 int optname,
583 char __user *optval,
584 int __user *optlen);
585 extern int compat_ipv6_setsockopt(struct sock *sk,
586 int level,
587 int optname,
588 char __user *optval,
589 unsigned int optlen);
590 extern int compat_ipv6_getsockopt(struct sock *sk,
591 int level,
592 int optname,
593 char __user *optval,
594 int __user *optlen);
595
596 extern int ip6_datagram_connect(struct sock *sk,
597 struct sockaddr *addr, int addr_len);
598
599 extern int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len);
600 extern int ipv6_recv_rxpmtu(struct sock *sk, struct msghdr *msg, int len);
601 extern void ipv6_icmp_error(struct sock *sk, struct sk_buff *skb, int err, __be16 port,
602 u32 info, u8 *payload);
603 extern void ipv6_local_error(struct sock *sk, int err, struct flowi6 *fl6, u32 info);
604 extern void ipv6_local_rxpmtu(struct sock *sk, struct flowi6 *fl6, u32 mtu);
605
606 extern int inet6_release(struct socket *sock);
607 extern int inet6_bind(struct socket *sock, struct sockaddr *uaddr,
608 int addr_len);
609 extern int inet6_getname(struct socket *sock, struct sockaddr *uaddr,
610 int *uaddr_len, int peer);
611 extern int inet6_ioctl(struct socket *sock, unsigned int cmd,
612 unsigned long arg);
613
614 extern int inet6_hash_connect(struct inet_timewait_death_row *death_row,
615 struct sock *sk);
616
617 /*
618 * reassembly.c
619 */
620 extern const struct proto_ops inet6_stream_ops;
621 extern const struct proto_ops inet6_dgram_ops;
622
623 struct group_source_req;
624 struct group_filter;
625
626 extern int ip6_mc_source(int add, int omode, struct sock *sk,
627 struct group_source_req *pgsr);
628 extern int ip6_mc_msfilter(struct sock *sk, struct group_filter *gsf);
629 extern int ip6_mc_msfget(struct sock *sk, struct group_filter *gsf,
630 struct group_filter __user *optval,
631 int __user *optlen);
632 extern unsigned int inet6_hash_frag(__be32 id, const struct in6_addr *saddr,
633 const struct in6_addr *daddr, u32 rnd);
634
635 #ifdef CONFIG_PROC_FS
636 extern int ac6_proc_init(struct net *net);
637 extern void ac6_proc_exit(struct net *net);
638 extern int raw6_proc_init(void);
639 extern void raw6_proc_exit(void);
640 extern int tcp6_proc_init(struct net *net);
641 extern void tcp6_proc_exit(struct net *net);
642 extern int udp6_proc_init(struct net *net);
643 extern void udp6_proc_exit(struct net *net);
644 extern int udplite6_proc_init(void);
645 extern void udplite6_proc_exit(void);
646 extern int ipv6_misc_proc_init(void);
647 extern void ipv6_misc_proc_exit(void);
648 extern int snmp6_register_dev(struct inet6_dev *idev);
649 extern int snmp6_unregister_dev(struct inet6_dev *idev);
650
651 #else
652 static inline int ac6_proc_init(struct net *net) { return 0; }
653 static inline void ac6_proc_exit(struct net *net) { }
654 static inline int snmp6_register_dev(struct inet6_dev *idev) { return 0; }
655 static inline int snmp6_unregister_dev(struct inet6_dev *idev) { return 0; }
656 #endif
657
658 #ifdef CONFIG_SYSCTL
659 extern ctl_table ipv6_route_table_template[];
660 extern ctl_table ipv6_icmp_table_template[];
661
662 extern struct ctl_table *ipv6_icmp_sysctl_init(struct net *net);
663 extern struct ctl_table *ipv6_route_sysctl_init(struct net *net);
664 extern int ipv6_sysctl_register(void);
665 extern void ipv6_sysctl_unregister(void);
666 extern int ipv6_static_sysctl_register(void);
667 extern void ipv6_static_sysctl_unregister(void);
668 #endif
669
670 #endif /* __KERNEL__ */
671 #endif /* _NET_IPV6_H */
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree