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ipv4: Kill can_sleep arg to ip_route_output_flow()
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / include / net / ipv6.h
CommitLineData
1da177e4
LT		 1/*
2 * Linux INET6 implementation
3 *
4 * Authors:
5 * Pedro Roque <roque@di.fc.ul.pt>
6 *
1da177e4
LT		 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>
20283d84 18#include <net/if_inet6.h>
1da177e4
LT		 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. */
2b741653 42#define NEXTHDR_MOBILITY 135 /* Mobility header. */
1da177e4
LT		 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
1da177e4
LT		 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 * fragmentation header
93 */
94
95struct frag_hdr {
44473a6b
AV		 96 __u8 nexthdr;
97 __u8 reserved;
98 __be16 frag_off;
99 __be32 identification;
1da177e4
LT		 100};
101
102#define IP6_MF 0x0001
103
104#ifdef __KERNEL__
105
106#include <net/sock.h>
107
108/* sysctls */
1da177e4 109extern int sysctl_mld_max_msf;
3d7cc2ba
PE		 110extern struct ctl_path net_ipv6_ctl_path[];
111
087fe240 112#define _DEVINC(net, statname, modifier, idev, field) \
14878f75 113({ \
a11d206d
YH		 114 struct inet6_dev *_idev = (idev); \
115 if (likely(_idev != NULL)) \
14878f75 116 SNMP_INC_STATS##modifier((_idev)->stats.statname, (field)); \
9261e537 117 SNMP_INC_STATS##modifier((net)->mib.statname##_statistics, (field));\
a11d206d 118})
14878f75 119
087fe240 120#define _DEVADD(net, statname, modifier, idev, field, val) \
8e7999c4
PE		 121({ \
122 struct inet6_dev *_idev = (idev); \
123 if (likely(_idev != NULL)) \
124 SNMP_ADD_STATS##modifier((_idev)->stats.statname, (field), (val)); \
9261e537 125 SNMP_ADD_STATS##modifier((net)->mib.statname##_statistics, (field), (val));\
8e7999c4
PE		 126})
127
edf391ff
NH		 128#define _DEVUPD(net, statname, modifier, idev, field, val) \
129({ \
130 struct inet6_dev *_idev = (idev); \
131 if (likely(_idev != NULL)) \
132 SNMP_UPD_PO_STATS##modifier((_idev)->stats.statname, field, (val)); \
133 SNMP_UPD_PO_STATS##modifier((net)->mib.statname##_statistics, field, (val));\
134})
135
14878f75 136/* MIBs */
14878f75 137
087fe240 138#define IP6_INC_STATS(net, idev,field) \
4ce3c183 139 _DEVINC(net, ipv6, 64, idev, field)
087fe240 140#define IP6_INC_STATS_BH(net, idev,field) \
4ce3c183 141 _DEVINC(net, ipv6, 64_BH, idev, field)
edf391ff 142#define IP6_ADD_STATS(net, idev,field,val) \
4ce3c183 143 _DEVADD(net, ipv6, 64, idev, field, val)
087fe240 144#define IP6_ADD_STATS_BH(net, idev,field,val) \
4ce3c183 145 _DEVADD(net, ipv6, 64_BH, idev, field, val)
edf391ff 146#define IP6_UPD_PO_STATS(net, idev,field,val) \
4ce3c183 147 _DEVUPD(net, ipv6, 64, idev, field, val)
edf391ff 148#define IP6_UPD_PO_STATS_BH(net, idev,field,val) \
4ce3c183 149 _DEVUPD(net, ipv6, 64_BH, idev, field, val)
087fe240
DL		 150#define ICMP6_INC_STATS(net, idev, field) \
151 _DEVINC(net, icmpv6, , idev, field)
152#define ICMP6_INC_STATS_BH(net, idev, field) \
153 _DEVINC(net, icmpv6, _BH, idev, field)
154
155#define ICMP6MSGOUT_INC_STATS(net, idev, field) \
156 _DEVINC(net, icmpv6msg, , idev, field +256)
157#define ICMP6MSGOUT_INC_STATS_BH(net, idev, field) \
158 _DEVINC(net, icmpv6msg, _BH, idev, field +256)
159#define ICMP6MSGIN_INC_STATS_BH(net, idev, field) \
160 _DEVINC(net, icmpv6msg, _BH, idev, field)
14878f75 161
fd2c3ef7 162struct ip6_ra_chain {
1da177e4
LT		 163 struct ip6_ra_chain *next;
164 struct sock *sk;
165 int sel;
166 void (*destructor)(struct sock *);
167};
168
169extern struct ip6_ra_chain *ip6_ra_chain;
170extern rwlock_t ip6_ra_lock;
171
172/*
173 This structure is prepared by protocol, when parsing
174 ancillary data and passed to IPv6.
175 */
176
fd2c3ef7 177struct ipv6_txoptions {
1da177e4
LT		 178 /* Length of this structure */
179 int tot_len;
180
181 /* length of extension headers */
182
183 __u16 opt_flen; /* after fragment hdr */
184 __u16 opt_nflen; /* before fragment hdr */
185
186 struct ipv6_opt_hdr *hopopt;
187 struct ipv6_opt_hdr *dst0opt;
188 struct ipv6_rt_hdr *srcrt; /* Routing Header */
1da177e4
LT		 189 struct ipv6_opt_hdr *dst1opt;
190
191 /* Option buffer, as read by IPV6_PKTOPTIONS, starts here. */
192};
193
fd2c3ef7 194struct ip6_flowlabel {
1da177e4 195 struct ip6_flowlabel *next;
90bcaf7b 196 __be32 label;
db3459d1 197 atomic_t users;
1da177e4
LT		 198 struct in6_addr dst;
199 struct ipv6_txoptions *opt;
1da177e4
LT		 200 unsigned long linger;
201 u8 share;
202 u32 owner;
203 unsigned long lastuse;
204 unsigned long expires;
60e8fbc4 205 struct net *fl_net;
1da177e4
LT		 206};
207
f3a7c66b
HH		 208#define IPV6_FLOWINFO_MASK cpu_to_be32(0x0FFFFFFF)
209#define IPV6_FLOWLABEL_MASK cpu_to_be32(0x000FFFFF)
1da177e4 210
fd2c3ef7 211struct ipv6_fl_socklist {
1da177e4
LT		 212 struct ipv6_fl_socklist *next;
213 struct ip6_flowlabel *fl;
214};
215
90bcaf7b 216extern struct ip6_flowlabel *fl6_sock_lookup(struct sock *sk, __be32 label);
1da177e4
LT		 217extern struct ipv6_txoptions *fl6_merge_options(struct ipv6_txoptions * opt_space,
218 struct ip6_flowlabel * fl,
219 struct ipv6_txoptions * fopt);
220extern void fl6_free_socklist(struct sock *sk);
221extern int ipv6_flowlabel_opt(struct sock *sk, char __user *optval, int optlen);
0a3e78ac 222extern int ip6_flowlabel_init(void);
1da177e4
LT		 223extern void ip6_flowlabel_cleanup(void);
224
225static inline void fl6_sock_release(struct ip6_flowlabel *fl)
226{
227 if (fl)
228 atomic_dec(&fl->users);
229}
230
725a8ff0 231extern int ip6_ra_control(struct sock *sk, int sel);
1da177e4 232
e5bbef20 233extern int ipv6_parse_hopopts(struct sk_buff *skb);
1da177e4
LT		 234
235extern struct ipv6_txoptions * ipv6_dup_options(struct sock *sk, struct ipv6_txoptions *opt);
333fad53
YH		 236extern struct ipv6_txoptions * ipv6_renew_options(struct sock *sk, struct ipv6_txoptions *opt,
237 int newtype,
238 struct ipv6_opt_hdr __user *newopt,
239 int newoptlen);
df9890c3
YH		 240struct ipv6_txoptions *ipv6_fixup_options(struct ipv6_txoptions *opt_space,
241 struct ipv6_txoptions *opt);
1da177e4 242
399c07de
ACM		 243extern int ipv6_opt_accepted(struct sock *sk, struct sk_buff *skb);
244
e5a2bb84 245int ip6_frag_nqueues(struct net *net);
6ddc0822 246int ip6_frag_mem(struct net *net);
1da177e4 247
9874c41c
JP		 248#define IPV6_FRAG_HIGH_THRESH (256 * 1024) /* 262144 */
249#define IPV6_FRAG_LOW_THRESH (192 * 1024) /* 196608 */
250#define IPV6_FRAG_TIMEOUT (60 * HZ) /* 60 seconds */
1da177e4 251
b1cacb68
YH		 252extern int __ipv6_addr_type(const struct in6_addr *addr);
253static inline int ipv6_addr_type(const struct in6_addr *addr)
254{
255 return __ipv6_addr_type(addr) & 0xffff;
256}
1da177e4
LT		 257
258static inline int ipv6_addr_scope(const struct in6_addr *addr)
259{
b1cacb68
YH		 260 return __ipv6_addr_type(addr) & IPV6_ADDR_SCOPE_MASK;
261}
262
263static inline int __ipv6_addr_src_scope(int type)
264{
a02cec21 265 return (type == IPV6_ADDR_ANY) ? __IPV6_ADDR_SCOPE_INVALID : (type >> 16);
b1cacb68
YH		 266}
267
268static inline int ipv6_addr_src_scope(const struct in6_addr *addr)
269{
270 return __ipv6_addr_src_scope(__ipv6_addr_type(addr));
1da177e4
LT		 271}
272
273static inline int ipv6_addr_cmp(const struct in6_addr *a1, const struct in6_addr *a2)
274{
db3459d1 275 return memcmp(a1, a2, sizeof(struct in6_addr));
1da177e4
LT		 276}
277
f2ffd9ee
PM		 278static inline int
279ipv6_masked_addr_cmp(const struct in6_addr *a1, const struct in6_addr *m,
280 const struct in6_addr *a2)
281{
a02cec21
ED		 282 return !!(((a1->s6_addr32[0] ^ a2->s6_addr32[0]) & m->s6_addr32[0]) |
283 ((a1->s6_addr32[1] ^ a2->s6_addr32[1]) & m->s6_addr32[1]) |
284 ((a1->s6_addr32[2] ^ a2->s6_addr32[2]) & m->s6_addr32[2]) |
285 ((a1->s6_addr32[3] ^ a2->s6_addr32[3]) & m->s6_addr32[3]));
f2ffd9ee
PM		 286}
287
1da177e4
LT		 288static inline void ipv6_addr_copy(struct in6_addr *a1, const struct in6_addr *a2)
289{
db3459d1 290 memcpy(a1, a2, sizeof(struct in6_addr));
1da177e4
LT		 291}
292
293static inline void ipv6_addr_prefix(struct in6_addr *pfx,
294 const struct in6_addr *addr,
295 int plen)
296{
297 /* caller must guarantee 0 <= plen <= 128 */
298 int o = plen >> 3,
299 b = plen & 0x7;
300
db3459d1 301 memset(pfx->s6_addr, 0, sizeof(pfx->s6_addr));
1da177e4 302 memcpy(pfx->s6_addr, addr, o);
db3459d1 303 if (b != 0)
1da177e4 304 pfx->s6_addr[o] = addr->s6_addr[o] & (0xff00 >> b);
1da177e4
LT		 305}
306
1da177e4 307static inline void ipv6_addr_set(struct in6_addr *addr,
48818f82
AV		 308 __be32 w1, __be32 w2,
309 __be32 w3, __be32 w4)
1da177e4
LT		 310{
311 addr->s6_addr32[0] = w1;
312 addr->s6_addr32[1] = w2;
313 addr->s6_addr32[2] = w3;
314 addr->s6_addr32[3] = w4;
315}
1da177e4
LT		 316
317static inline int ipv6_addr_equal(const struct in6_addr *a1,
318 const struct in6_addr *a2)
319{
a02cec21
ED		 320 return ((a1->s6_addr32[0] ^ a2->s6_addr32[0]) |
321 (a1->s6_addr32[1] ^ a2->s6_addr32[1]) |
322 (a1->s6_addr32[2] ^ a2->s6_addr32[2]) |
323 (a1->s6_addr32[3] ^ a2->s6_addr32[3])) == 0;
1da177e4
LT		 324}
325
48818f82 326static inline int __ipv6_prefix_equal(const __be32 *a1, const __be32 *a2,
1da177e4
LT		 327 unsigned int prefixlen)
328{
329 unsigned pdw, pbi;
330
331 /* check complete u32 in prefix */
332 pdw = prefixlen >> 5;
333 if (pdw && memcmp(a1, a2, pdw << 2))
334 return 0;
335
336 /* check incomplete u32 in prefix */
337 pbi = prefixlen & 0x1f;
338 if (pbi && ((a1[pdw] ^ a2[pdw]) & htonl((0xffffffff) << (32 - pbi))))
339 return 0;
340
341 return 1;
342}
343
344static inline int ipv6_prefix_equal(const struct in6_addr *a1,
345 const struct in6_addr *a2,
346 unsigned int prefixlen)
347{
348 return __ipv6_prefix_equal(a1->s6_addr32, a2->s6_addr32,
349 prefixlen);
350}
351
2588fe1d 352struct inet_frag_queue;
2588fe1d 353
0b5ccb2e
PM		 354enum ip6_defrag_users {
355 IP6_DEFRAG_LOCAL_DELIVER,
356 IP6_DEFRAG_CONNTRACK_IN,
4be929be 357 __IP6_DEFRAG_CONNTRACK_IN = IP6_DEFRAG_CONNTRACK_IN + USHRT_MAX,
0b5ccb2e 358 IP6_DEFRAG_CONNTRACK_OUT,
4be929be 359 __IP6_DEFRAG_CONNTRACK_OUT = IP6_DEFRAG_CONNTRACK_OUT + USHRT_MAX,
8fa9ff68 360 IP6_DEFRAG_CONNTRACK_BRIDGE_IN,
4be929be 361 __IP6_DEFRAG_CONNTRACK_BRIDGE_IN = IP6_DEFRAG_CONNTRACK_BRIDGE_IN + USHRT_MAX,
0b5ccb2e
PM		 362};
363
c6fda282
PE		 364struct ip6_create_arg {
365 __be32 id;
0b5ccb2e 366 u32 user;
c6fda282
PE		 367 struct in6_addr *src;
368 struct in6_addr *dst;
369};
370
371void ip6_frag_init(struct inet_frag_queue *q, void *a);
abd6523d 372int ip6_frag_match(struct inet_frag_queue *q, void *a);
c6fda282 373
1da177e4
LT		 374static inline int ipv6_addr_any(const struct in6_addr *a)
375{
a02cec21
ED		 376 return (a->s6_addr32[0] | a->s6_addr32[1] |
377 a->s6_addr32[2] | a->s6_addr32[3]) == 0;
1da177e4
LT		 378}
379
f630e43a
YH		 380static inline int ipv6_addr_loopback(const struct in6_addr *a)
381{
a02cec21
ED		 382 return (a->s6_addr32[0] | a->s6_addr32[1] |
383 a->s6_addr32[2] | (a->s6_addr32[3] ^ htonl(1))) == 0;
f630e43a
YH		 384}
385
e773e4fa
BH		 386static inline int ipv6_addr_v4mapped(const struct in6_addr *a)
387{
a02cec21
ED		 388 return (a->s6_addr32[0] | a->s6_addr32[1] |
389 (a->s6_addr32[2] ^ htonl(0x0000ffff))) == 0;
e773e4fa
BH		 390}
391
99cd07a5
JMT		 392/*
393 * Check for a RFC 4843 ORCHID address
394 * (Overlay Routable Cryptographic Hash Identifiers)
395 */
396static inline int ipv6_addr_orchid(const struct in6_addr *a)
397{
a02cec21 398 return (a->s6_addr32[0] & htonl(0xfffffff0)) == htonl(0x20010010);
99cd07a5
JMT		 399}
400
f15364bd
AC		 401static inline void ipv6_addr_set_v4mapped(const __be32 addr,
402 struct in6_addr *v4mapped)
403{
404 ipv6_addr_set(v4mapped,
405 0, 0,
406 htonl(0x0000FFFF),
407 addr);
408}
409
971f359d
YH		 410/*
411 * find the first different bit between two addresses
412 * length of address must be a multiple of 32bits
413 */
414static inline int __ipv6_addr_diff(const void *token1, const void *token2, int addrlen)
415{
ef296f56 416 const __be32 *a1 = token1, *a2 = token2;
971f359d
YH		 417 int i;
418
419 addrlen >>= 2;
420
421 for (i = 0; i < addrlen; i++) {
ef296f56
AV		 422 __be32 xb = a1[i] ^ a2[i];
423 if (xb)
d57b8fb8 424 return i * 32 + 31 - __fls(ntohl(xb));
971f359d
YH		 425 }
426
427 /*
428 * we should *never* get to this point since that
429 * would mean the addrs are equal
430 *
431 * However, we do get to it 8) And exacly, when
432 * addresses are equal 8)
433 *
434 * ip route add 1111::/128 via ...
435 * ip route add 1111::/64 via ...
436 * and we are here.
437 *
438 * Ideally, this function should stop comparison
439 * at prefix length. It does not, but it is still OK,
440 * if returned value is greater than prefix length.
441 * --ANK (980803)
442 */
a02cec21 443 return addrlen << 5;
971f359d
YH		 444}
445
446static inline int ipv6_addr_diff(const struct in6_addr *a1, const struct in6_addr *a2)
447{
448 return __ipv6_addr_diff(a1, a2, sizeof(struct in6_addr));
449}
450
7ea2f2c5
SS		 451static __inline__ void ipv6_select_ident(struct frag_hdr *fhdr)
452{
453 static u32 ipv6_fragmentation_id = 1;
454 static DEFINE_SPINLOCK(ip6_id_lock);
455
456 spin_lock_bh(&ip6_id_lock);
457 fhdr->identification = htonl(ipv6_fragmentation_id);
458 if (++ipv6_fragmentation_id == 0)
459 ipv6_fragmentation_id = 1;
460 spin_unlock_bh(&ip6_id_lock);
461}
462
1da177e4
LT		 463/*
464 * Prototypes exported by ipv6
465 */
466
467/*
468 * rcv function (called from netdevice level)
469 */
470
471extern int ipv6_rcv(struct sk_buff *skb,
472 struct net_device *dev,
f2ccd8fa
DM		 473 struct packet_type *pt,
474 struct net_device *orig_dev);
1da177e4 475
b05e1066
PM		 476extern int ip6_rcv_finish(struct sk_buff *skb);
477
1da177e4
LT		 478/*
479 * upper-layer output functions
480 */
481extern int ip6_xmit(struct sock *sk,
482 struct sk_buff *skb,
483 struct flowi *fl,
4e15ed4d 484 struct ipv6_txoptions *opt);
1da177e4
LT		 485
486extern int ip6_nd_hdr(struct sock *sk,
487 struct sk_buff *skb,
488 struct net_device *dev,
9acd9f3a
YH		 489 const struct in6_addr *saddr,
490 const struct in6_addr *daddr,
1da177e4
LT		 491 int proto, int len);
492
493extern int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr);
494
495extern int ip6_append_data(struct sock *sk,
496 int getfrag(void *from, char *to, int offset, int len, int odd, struct sk_buff *skb),
497 void *from,
498 int length,
499 int transhdrlen,
500 int hlimit,
41a1f8ea 501 int tclass,
1da177e4
LT		 502 struct ipv6_txoptions *opt,
503 struct flowi *fl,
504 struct rt6_info *rt,
13b52cd4
BH		 505 unsigned int flags,
506 int dontfrag);
1da177e4
LT		 507
508extern int ip6_push_pending_frames(struct sock *sk);
509
510extern void ip6_flush_pending_frames(struct sock *sk);
511
512extern int ip6_dst_lookup(struct sock *sk,
513 struct dst_entry **dst,
514 struct flowi *fl);
68d0c6d3
DM		 515extern struct dst_entry * ip6_dst_lookup_flow(struct sock *sk,
516 struct flowi *fl,
517 const struct in6_addr *final_dst,
518 bool want_blackhole);
519extern struct dst_entry * ip6_sk_dst_lookup_flow(struct sock *sk,
520 struct flowi *fl,
521 const struct in6_addr *final_dst,
522 bool want_blackhole);
14e50e57
DM		 523extern int ip6_dst_blackhole(struct sock *sk,
524 struct dst_entry **dst,
525 struct flowi *fl);
1da177e4
LT		 526
527/*
528 * skb processing functions
529 */
530
531extern int ip6_output(struct sk_buff *skb);
532extern int ip6_forward(struct sk_buff *skb);
533extern int ip6_input(struct sk_buff *skb);
534extern int ip6_mc_input(struct sk_buff *skb);
535
ef76bc23
HX		 536extern int __ip6_local_out(struct sk_buff *skb);
537extern int ip6_local_out(struct sk_buff *skb);
538
1da177e4
LT		 539/*
540 * Extension header (options) processing
541 */
542
1da177e4
LT		 543extern void ipv6_push_nfrag_opts(struct sk_buff *skb,
544 struct ipv6_txoptions *opt,
545 u8 *proto,
546 struct in6_addr **daddr_p);
547extern void ipv6_push_frag_opts(struct sk_buff *skb,
548 struct ipv6_txoptions *opt,
549 u8 *proto);
550
551extern int ipv6_skip_exthdr(const struct sk_buff *, int start,
0d3d077c 552 u8 *nexthdrp);
1da177e4
LT		 553
554extern int ipv6_ext_hdr(u8 nexthdr);
555
c61a4043
MN		 556extern int ipv6_find_tlv(struct sk_buff *skb, int offset, int type);
557
20c59de2
AE		 558extern struct in6_addr *fl6_update_dst(struct flowi *fl,
559 const struct ipv6_txoptions *opt,
560 struct in6_addr *orig);
561
1da177e4
LT		 562/*
563 * socket options (ipv6_sockglue.c)
564 */
565
566extern int ipv6_setsockopt(struct sock *sk, int level,
567 int optname,
568 char __user *optval,
b7058842 569 unsigned int optlen);
1da177e4
LT		 570extern int ipv6_getsockopt(struct sock *sk, int level,
571 int optname,
572 char __user *optval,
573 int __user *optlen);
3fdadf7d
DM		 574extern int compat_ipv6_setsockopt(struct sock *sk,
575 int level,
576 int optname,
577 char __user *optval,
b7058842 578 unsigned int optlen);
3fdadf7d
DM		 579extern int compat_ipv6_getsockopt(struct sock *sk,
580 int level,
581 int optname,
582 char __user *optval,
583 int __user *optlen);
1da177e4 584
1da177e4
LT		 585extern int ip6_datagram_connect(struct sock *sk,
586 struct sockaddr *addr, int addr_len);
587
588extern int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len);
4b340ae2 589extern int ipv6_recv_rxpmtu(struct sock *sk, struct msghdr *msg, int len);
e69a4adc 590extern void ipv6_icmp_error(struct sock *sk, struct sk_buff *skb, int err, __be16 port,
1da177e4
LT		 591 u32 info, u8 *payload);
592extern void ipv6_local_error(struct sock *sk, int err, struct flowi *fl, u32 info);
4b340ae2 593extern void ipv6_local_rxpmtu(struct sock *sk, struct flowi *fl, u32 mtu);
1da177e4
LT		 594
595extern int inet6_release(struct socket *sock);
596extern int inet6_bind(struct socket *sock, struct sockaddr *uaddr,
597 int addr_len);
598extern int inet6_getname(struct socket *sock, struct sockaddr *uaddr,
599 int *uaddr_len, int peer);
600extern int inet6_ioctl(struct socket *sock, unsigned int cmd,
601 unsigned long arg);
602
d8313f5c
ACM		 603extern int inet6_hash_connect(struct inet_timewait_death_row *death_row,
604 struct sock *sk);
605
1da177e4
LT		 606/*
607 * reassembly.c
608 */
90ddc4f0
ED		 609extern const struct proto_ops inet6_stream_ops;
610extern const struct proto_ops inet6_dgram_ops;
20380731 611
14c85021
ACM		 612struct group_source_req;
613struct group_filter;
614
20380731
ACM		 615extern int ip6_mc_source(int add, int omode, struct sock *sk,
616 struct group_source_req *pgsr);
617extern int ip6_mc_msfilter(struct sock *sk, struct group_filter *gsf);
618extern int ip6_mc_msfget(struct sock *sk, struct group_filter *gsf,
619 struct group_filter __user *optval,
620 int __user *optlen);
93c8b90f
IJ		 621extern unsigned int inet6_hash_frag(__be32 id, const struct in6_addr *saddr,
622 const struct in6_addr *daddr, u32 rnd);
20380731
ACM		 623
624#ifdef CONFIG_PROC_FS
6ab57e7e
DL		 625extern int ac6_proc_init(struct net *net);
626extern void ac6_proc_exit(struct net *net);
20380731
ACM		 627extern int raw6_proc_init(void);
628extern void raw6_proc_exit(void);
6f8b13bc
DL		 629extern int tcp6_proc_init(struct net *net);
630extern void tcp6_proc_exit(struct net *net);
0c96d8c5
DL		 631extern int udp6_proc_init(struct net *net);
632extern void udp6_proc_exit(struct net *net);
ba4e58ec
GR		 633extern int udplite6_proc_init(void);
634extern void udplite6_proc_exit(void);
20380731
ACM		 635extern int ipv6_misc_proc_init(void);
636extern void ipv6_misc_proc_exit(void);
7f7d9a6b
HX		 637extern int snmp6_register_dev(struct inet6_dev *idev);
638extern int snmp6_unregister_dev(struct inet6_dev *idev);
20380731 639
7f7d9a6b 640#else
6ab57e7e
DL		 641static inline int ac6_proc_init(struct net *net) { return 0; }
642static inline void ac6_proc_exit(struct net *net) { }
643static inline int snmp6_register_dev(struct inet6_dev *idev) { return 0; }
644static inline int snmp6_unregister_dev(struct inet6_dev *idev) { return 0; }
20380731 645#endif
1da177e4 646
20380731 647#ifdef CONFIG_SYSCTL
760f2d01
DL		 648extern ctl_table ipv6_route_table_template[];
649extern ctl_table ipv6_icmp_table_template[];
1da177e4 650
6de1a910
DL		 651extern struct ctl_table *ipv6_icmp_sysctl_init(struct net *net);
652extern struct ctl_table *ipv6_route_sysctl_init(struct net *net);
291480c0 653extern int ipv6_sysctl_register(void);
20380731 654extern void ipv6_sysctl_unregister(void);
eeb61f71
AV		 655extern int ipv6_static_sysctl_register(void);
656extern void ipv6_static_sysctl_unregister(void);
20380731 657#endif
1da177e4 658
20380731
ACM		 659#endif /* __KERNEL__ */
660#endif /* _NET_IPV6_H */
kernel source for telekom puls (alcatel/mediatek)