]>
Commit | Line | Data |
---|---|---|
b0d623f7 | 1 | /* |
316670eb | 2 | * Copyright (c) 2000-2012 Apple Inc. All rights reserved. |
b0d623f7 A |
3 | * |
4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ | |
5 | * | |
6 | * This file contains Original Code and/or Modifications of Original Code | |
7 | * as defined in and that are subject to the Apple Public Source License | |
8 | * Version 2.0 (the 'License'). You may not use this file except in | |
9 | * compliance with the License. The rights granted to you under the License | |
10 | * may not be used to create, or enable the creation or redistribution of, | |
11 | * unlawful or unlicensed copies of an Apple operating system, or to | |
12 | * circumvent, violate, or enable the circumvention or violation of, any | |
13 | * terms of an Apple operating system software license agreement. | |
14 | * | |
15 | * Please obtain a copy of the License at | |
16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. | |
17 | * | |
18 | * The Original Code and all software distributed under the License are | |
19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | |
23 | * Please see the License for the specific language governing rights and | |
24 | * limitations under the License. | |
25 | * | |
26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ | |
27 | */ | |
28 | ||
9bccf70c A |
29 | /* $FreeBSD: src/sys/netinet6/ip6_var.h,v 1.2.2.2 2001/07/03 11:01:54 ume Exp $ */ |
30 | /* $KAME: ip6_var.h,v 1.62 2001/05/03 14:51:48 itojun Exp $ */ | |
1c79356b A |
31 | |
32 | /* | |
33 | * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. | |
34 | * All rights reserved. | |
35 | * | |
36 | * Redistribution and use in source and binary forms, with or without | |
37 | * modification, are permitted provided that the following conditions | |
38 | * are met: | |
39 | * 1. Redistributions of source code must retain the above copyright | |
40 | * notice, this list of conditions and the following disclaimer. | |
41 | * 2. Redistributions in binary form must reproduce the above copyright | |
42 | * notice, this list of conditions and the following disclaimer in the | |
43 | * documentation and/or other materials provided with the distribution. | |
44 | * 3. Neither the name of the project nor the names of its contributors | |
45 | * may be used to endorse or promote products derived from this software | |
46 | * without specific prior written permission. | |
47 | * | |
48 | * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND | |
49 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
50 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
51 | * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE | |
52 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
53 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
54 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
55 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
56 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
57 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
58 | * SUCH DAMAGE. | |
59 | */ | |
60 | ||
61 | /* | |
62 | * Copyright (c) 1982, 1986, 1993 | |
63 | * The Regents of the University of California. All rights reserved. | |
64 | * | |
65 | * Redistribution and use in source and binary forms, with or without | |
66 | * modification, are permitted provided that the following conditions | |
67 | * are met: | |
68 | * 1. Redistributions of source code must retain the above copyright | |
69 | * notice, this list of conditions and the following disclaimer. | |
70 | * 2. Redistributions in binary form must reproduce the above copyright | |
71 | * notice, this list of conditions and the following disclaimer in the | |
72 | * documentation and/or other materials provided with the distribution. | |
73 | * 3. All advertising materials mentioning features or use of this software | |
74 | * must display the following acknowledgement: | |
75 | * This product includes software developed by the University of | |
76 | * California, Berkeley and its contributors. | |
77 | * 4. Neither the name of the University nor the names of its contributors | |
78 | * may be used to endorse or promote products derived from this software | |
79 | * without specific prior written permission. | |
80 | * | |
81 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
82 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
83 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
84 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
85 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
86 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
87 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
88 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
89 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
90 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
91 | * SUCH DAMAGE. | |
92 | * | |
93 | * @(#)ip_var.h 8.1 (Berkeley) 6/10/93 | |
94 | */ | |
95 | ||
96 | #ifndef _NETINET6_IP6_VAR_H_ | |
97 | #define _NETINET6_IP6_VAR_H_ | |
9bccf70c | 98 | #include <sys/appleapiopts.h> |
1c79356b | 99 | |
6d2010ae | 100 | #ifdef XNU_KERNEL_PRIVATE |
1c79356b A |
101 | /* |
102 | * IP6 reassembly queue structure. Each fragment | |
103 | * being reassembled is attached to one of these structures. | |
104 | */ | |
105 | struct ip6q { | |
1c79356b A |
106 | struct ip6asfrag *ip6q_down; |
107 | struct ip6asfrag *ip6q_up; | |
108 | u_int32_t ip6q_ident; | |
6d2010ae A |
109 | u_int8_t ip6q_nxt; |
110 | u_int8_t ip6q_ecn; | |
1c79356b | 111 | u_int8_t ip6q_ttl; |
6d2010ae | 112 | struct in6_addr ip6q_src, ip6q_dst; |
1c79356b A |
113 | struct ip6q *ip6q_next; |
114 | struct ip6q *ip6q_prev; | |
115 | int ip6q_unfrglen; /* len of unfragmentable part */ | |
116 | #if notyet | |
117 | u_char *ip6q_nxtp; | |
118 | #endif | |
6d2010ae | 119 | int ip6q_nfrag; /* # of fragments */ |
1c79356b A |
120 | }; |
121 | ||
122 | struct ip6asfrag { | |
1c79356b A |
123 | struct ip6asfrag *ip6af_down; |
124 | struct ip6asfrag *ip6af_up; | |
125 | struct mbuf *ip6af_m; | |
126 | int ip6af_offset; /* offset in ip6af_m to next header */ | |
127 | int ip6af_frglen; /* fragmentable part length */ | |
128 | int ip6af_off; /* fragment offset */ | |
129 | u_int16_t ip6af_mff; /* more fragment bit in frag off */ | |
130 | }; | |
131 | ||
132 | #define IP6_REASS_MBUF(ip6af) (*(struct mbuf **)&((ip6af)->ip6af_m)) | |
133 | ||
134 | struct ip6_moptions { | |
6d2010ae A |
135 | decl_lck_mtx_data(, im6o_lock); |
136 | uint32_t im6o_refcnt; /* ref count */ | |
137 | uint32_t im6o_debug; /* see ifa_debug flags */ | |
1c79356b A |
138 | struct ifnet *im6o_multicast_ifp; /* ifp for outgoing multicasts */ |
139 | u_char im6o_multicast_hlim; /* hoplimit for outgoing multicasts */ | |
140 | u_char im6o_multicast_loop; /* 1 >= hear sends if a member */ | |
6d2010ae A |
141 | u_short im6o_num_memberships; /* no. memberships this socket */ |
142 | u_short im6o_max_memberships; /* max memberships this socket */ | |
143 | struct in6_multi **im6o_membership; /* group memberships */ | |
144 | struct in6_mfilter *im6o_mfilters; /* source filters */ | |
145 | void (*im6o_trace) /* callback fn for tracing refs */ | |
146 | (struct ip6_moptions *, int); | |
1c79356b A |
147 | }; |
148 | ||
6d2010ae A |
149 | #define IM6O_LOCK_ASSERT_HELD(_im6o) \ |
150 | lck_mtx_assert(&(_im6o)->im6o_lock, LCK_MTX_ASSERT_OWNED) | |
151 | ||
152 | #define IM6O_LOCK_ASSERT_NOTHELD(_im6o) \ | |
153 | lck_mtx_assert(&(_im6o)->im6o_lock, LCK_MTX_ASSERT_NOTOWNED) | |
154 | ||
155 | #define IM6O_LOCK(_im6o) \ | |
156 | lck_mtx_lock(&(_im6o)->im6o_lock) | |
157 | ||
158 | #define IM6O_LOCK_SPIN(_im6o) \ | |
159 | lck_mtx_lock_spin(&(_im6o)->im6o_lock) | |
160 | ||
161 | #define IM6O_CONVERT_LOCK(_im6o) do { \ | |
162 | IM6O_LOCK_ASSERT_HELD(_im6o); \ | |
163 | lck_mtx_convert_spin(&(_im6o)->im6o_lock); \ | |
164 | } while (0) | |
165 | ||
166 | #define IM6O_UNLOCK(_im6o) \ | |
167 | lck_mtx_unlock(&(_im6o)->im6o_lock) | |
168 | ||
169 | #define IM6O_ADDREF(_im6o) \ | |
170 | im6o_addref(_im6o, 0) | |
171 | ||
172 | #define IM6O_ADDREF_LOCKED(_im6o) \ | |
173 | im6o_addref(_im6o, 1) | |
174 | ||
175 | #define IM6O_REMREF(_im6o) \ | |
176 | im6o_remref(_im6o) | |
177 | ||
316670eb A |
178 | struct ip6_exthdrs { |
179 | struct mbuf *ip6e_ip6; | |
180 | struct mbuf *ip6e_hbh; | |
181 | struct mbuf *ip6e_dest1; | |
182 | struct mbuf *ip6e_rthdr; | |
183 | struct mbuf *ip6e_dest2; | |
184 | }; | |
185 | ||
1c79356b A |
186 | /* |
187 | * Control options for outgoing packets | |
188 | */ | |
189 | ||
190 | /* Routing header related info */ | |
191 | struct ip6po_rhinfo { | |
192 | struct ip6_rthdr *ip6po_rhi_rthdr; /* Routing header */ | |
193 | struct route_in6 ip6po_rhi_route; /* Route to the 1st hop */ | |
194 | }; | |
195 | #define ip6po_rthdr ip6po_rhinfo.ip6po_rhi_rthdr | |
196 | #define ip6po_route ip6po_rhinfo.ip6po_rhi_route | |
197 | ||
6d2010ae A |
198 | /* Nexthop related info */ |
199 | struct ip6po_nhinfo { | |
200 | struct sockaddr *ip6po_nhi_nexthop; | |
201 | struct route_in6 ip6po_nhi_route; /* Route to the nexthop */ | |
202 | }; | |
203 | #define ip6po_nexthop ip6po_nhinfo.ip6po_nhi_nexthop | |
204 | #define ip6po_nextroute ip6po_nhinfo.ip6po_nhi_route | |
205 | ||
1c79356b | 206 | struct ip6_pktopts { |
9bccf70c | 207 | struct mbuf *ip6po_m; /* Pointer to mbuf storing the data */ |
1c79356b A |
208 | int ip6po_hlim; /* Hoplimit for outgoing packets */ |
209 | ||
210 | /* Outgoing IF/address information */ | |
211 | struct in6_pktinfo *ip6po_pktinfo; | |
212 | ||
6d2010ae A |
213 | /* Next-hop address information */ |
214 | struct ip6po_nhinfo ip6po_nhinfo; | |
215 | ||
1c79356b A |
216 | struct ip6_hbh *ip6po_hbh; /* Hop-by-Hop options header */ |
217 | ||
218 | /* Destination options header (before a routing header) */ | |
219 | struct ip6_dest *ip6po_dest1; | |
220 | ||
221 | /* Routing header related info. */ | |
222 | struct ip6po_rhinfo ip6po_rhinfo; | |
223 | ||
224 | /* Destination options header (after a routing header) */ | |
225 | struct ip6_dest *ip6po_dest2; | |
b0d623f7 | 226 | |
6d2010ae A |
227 | int ip6po_tclass; /* traffic class */ |
228 | ||
229 | int ip6po_minmtu; /* fragment vs PMTU discovery policy */ | |
230 | #define IP6PO_MINMTU_MCASTONLY -1 /* default; send at min MTU for multicast*/ | |
231 | #define IP6PO_MINMTU_DISABLE 0 /* always perform pmtu disc */ | |
232 | #define IP6PO_MINMTU_ALL 1 /* always send at min MTU */ | |
233 | ||
234 | int ip6po_prefer_tempaddr; /* whether temporary addresses are | |
235 | preferred as source address */ | |
236 | #define IP6PO_TEMPADDR_SYSTEM -1 /* follow the system default */ | |
237 | #define IP6PO_TEMPADDR_NOTPREFER 0 /* not prefer temporary address */ | |
238 | #define IP6PO_TEMPADDR_PREFER 1 /* prefer temporary address */ | |
239 | ||
240 | int ip6po_flags; | |
241 | #if 0 /* parameters in this block is obsolete. do not reuse the values. */ | |
242 | #define IP6PO_REACHCONF 0x01 /* upper-layer reachability confirmation. */ | |
243 | #define IP6PO_MINMTU 0x02 /* use minimum MTU (IPV6_USE_MIN_MTU) */ | |
244 | #endif | |
245 | #define IP6PO_DONTFRAG 0x04 /* disable fragmentation (IPV6_DONTFRAG) */ | |
246 | #define IP6PO_USECOA 0x08 /* use care of address */ | |
1c79356b A |
247 | }; |
248 | ||
249 | /* | |
250 | * Control options for incoming packets | |
251 | */ | |
6d2010ae | 252 | #endif /* XNU_KERNEL_PRIVATE */ |
1c79356b | 253 | |
1c79356b A |
254 | struct ip6stat { |
255 | u_quad_t ip6s_total; /* total packets received */ | |
256 | u_quad_t ip6s_tooshort; /* packet too short */ | |
257 | u_quad_t ip6s_toosmall; /* not enough data */ | |
258 | u_quad_t ip6s_fragments; /* fragments received */ | |
259 | u_quad_t ip6s_fragdropped; /* frags dropped(dups, out of space) */ | |
260 | u_quad_t ip6s_fragtimeout; /* fragments timed out */ | |
261 | u_quad_t ip6s_fragoverflow; /* fragments that exceeded limit */ | |
262 | u_quad_t ip6s_forward; /* packets forwarded */ | |
263 | u_quad_t ip6s_cantforward; /* packets rcvd for unreachable dest */ | |
264 | u_quad_t ip6s_redirectsent; /* packets forwarded on same net */ | |
265 | u_quad_t ip6s_delivered; /* datagrams delivered to upper level*/ | |
266 | u_quad_t ip6s_localout; /* total ip packets generated here */ | |
267 | u_quad_t ip6s_odropped; /* lost packets due to nobufs, etc. */ | |
268 | u_quad_t ip6s_reassembled; /* total packets reassembled ok */ | |
6d2010ae | 269 | u_quad_t ip6s_fragmented; /* datagrams successfully fragmented */ |
1c79356b A |
270 | u_quad_t ip6s_ofragments; /* output fragments created */ |
271 | u_quad_t ip6s_cantfrag; /* don't fragment flag was set, etc. */ | |
272 | u_quad_t ip6s_badoptions; /* error in option processing */ | |
273 | u_quad_t ip6s_noroute; /* packets discarded due to no route */ | |
274 | u_quad_t ip6s_badvers; /* ip6 version != 6 */ | |
275 | u_quad_t ip6s_rawout; /* total raw ip packets generated */ | |
276 | u_quad_t ip6s_badscope; /* scope error */ | |
277 | u_quad_t ip6s_notmember; /* don't join this multicast group */ | |
278 | u_quad_t ip6s_nxthist[256]; /* next header history */ | |
279 | u_quad_t ip6s_m1; /* one mbuf */ | |
280 | u_quad_t ip6s_m2m[32]; /* two or more mbuf */ | |
281 | u_quad_t ip6s_mext1; /* one ext mbuf */ | |
282 | u_quad_t ip6s_mext2m; /* two or more ext mbuf */ | |
283 | u_quad_t ip6s_exthdrtoolong; /* ext hdr are not continuous */ | |
284 | u_quad_t ip6s_nogif; /* no match gif found */ | |
285 | u_quad_t ip6s_toomanyhdr; /* discarded due to too many headers */ | |
1c79356b A |
286 | |
287 | /* | |
288 | * statistics for improvement of the source address selection | |
289 | * algorithm: | |
290 | * XXX: hardcoded 16 = # of ip6 multicast scope types + 1 | |
291 | */ | |
292 | /* number of times that address selection fails */ | |
293 | u_quad_t ip6s_sources_none; | |
294 | /* number of times that an address on the outgoing I/F is chosen */ | |
295 | u_quad_t ip6s_sources_sameif[16]; | |
296 | /* number of times that an address on a non-outgoing I/F is chosen */ | |
297 | u_quad_t ip6s_sources_otherif[16]; | |
298 | /* | |
299 | * number of times that an address that has the same scope | |
300 | * from the destination is chosen. | |
301 | */ | |
302 | u_quad_t ip6s_sources_samescope[16]; | |
303 | /* | |
304 | * number of times that an address that has a different scope | |
305 | * from the destination is chosen. | |
306 | */ | |
307 | u_quad_t ip6s_sources_otherscope[16]; | |
6d2010ae | 308 | /* number of times that a deprecated address is chosen */ |
1c79356b | 309 | u_quad_t ip6s_sources_deprecated[16]; |
9bccf70c A |
310 | |
311 | u_quad_t ip6s_forward_cachehit; | |
312 | u_quad_t ip6s_forward_cachemiss; | |
6d2010ae A |
313 | |
314 | /* number of times that each rule of source selection is applied. */ | |
315 | u_quad_t ip6s_sources_rule[16]; | |
316 | #ifdef PRIVATE | |
317 | u_quad_t ip6s_pktdropcntrl; /* pkt dropped, no mbufs for control data */ | |
318 | #endif /* PRIVATE */ | |
9bccf70c A |
319 | }; |
320 | ||
91447636 | 321 | #ifdef KERNEL_PRIVATE |
9bccf70c A |
322 | #ifdef KERNEL |
323 | /* | |
324 | * IPv6 onion peeling state. | |
325 | * it will be initialized when we come into ip6_input(). | |
326 | * XXX do not make it a kitchen sink! | |
327 | */ | |
328 | struct ip6aux { | |
329 | u_int32_t ip6a_flags; | |
330 | #define IP6A_SWAP 0x01 /* swapped home/care-of on packet */ | |
331 | #define IP6A_HASEEN 0x02 /* HA was present */ | |
332 | #define IP6A_BRUID 0x04 /* BR Unique Identifier was present */ | |
333 | #define IP6A_RTALERTSEEN 0x08 /* rtalert present */ | |
334 | ||
335 | /* ip6.ip6_src */ | |
336 | struct in6_addr ip6a_careof; /* care-of address of the peer */ | |
337 | struct in6_addr ip6a_home; /* home address of the peer */ | |
338 | u_int16_t ip6a_bruid; /* BR unique identifier */ | |
339 | ||
340 | /* ip6.ip6_dst */ | |
341 | struct in6_ifaddr *ip6a_dstia6; /* my ifaddr that matches ip6_dst */ | |
342 | ||
343 | /* rtalert */ | |
344 | u_int16_t ip6a_rtalert; /* rtalert option value */ | |
345 | ||
346 | /* | |
347 | * decapsulation history will be here. | |
348 | * with IPsec it may not be accurate. | |
349 | */ | |
1c79356b A |
350 | }; |
351 | ||
1c79356b | 352 | /* flags passed to ip6_output as last parameter */ |
6d2010ae | 353 | #define IPV6_UNSPECSRC 0x01 /* allow :: as the source address */ |
1c79356b A |
354 | #define IPV6_FORWARDING 0x02 /* most of IPv6 header exists */ |
355 | #define IPV6_MINMTU 0x04 /* use minimum MTU (IPV6_USE_MIN_MTU) */ | |
6d2010ae A |
356 | #define IPV6_FLAG_NOSRCIFSEL 0x80 /* bypas source address selection */ |
357 | #define IPV6_OUTARGS 0x100 /* has ancillary output info */ | |
358 | ||
316670eb A |
359 | #ifdef XNU_KERNEL_PRIVATE |
360 | #define IP6_HDR_ALIGNED_P(_ip6) ((((uintptr_t)(_ip6)) & ((uintptr_t)3)) == 0) | |
361 | ||
362 | /* | |
363 | * On platforms which require strict alignment (currently for anything but | |
364 | * i386 or x86_64), this macro checks whether the pointer to the IP header | |
365 | * is 32-bit aligned, and assert otherwise. | |
366 | */ | |
367 | #if defined(__i386__) || defined(__x86_64__) | |
368 | #define IP6_HDR_STRICT_ALIGNMENT_CHECK(_ip6) do { } while (0) | |
369 | #else /* !__i386__ && !__x86_64__ */ | |
370 | #define IP6_HDR_STRICT_ALIGNMENT_CHECK(_ip6) do { \ | |
371 | if (!IP_HDR_ALIGNED_P(_ip6)) { \ | |
372 | panic_plain("\n%s: Unaligned IPv6 header %p\n", \ | |
373 | __func__, _ip6); \ | |
374 | } \ | |
375 | } while (0) | |
376 | #endif /* !__i386__ && !__x86_64__ */ | |
377 | #endif /* XNU_KERNEL_PRIVATE */ | |
378 | ||
379 | #include <net/flowadv.h> | |
6d2010ae A |
380 | |
381 | /* | |
316670eb | 382 | * Extra information passed to ip6_output when IPV6_OUTARGS is set. |
6d2010ae A |
383 | */ |
384 | struct ip6_out_args { | |
385 | unsigned int ip6oa_boundif; /* bound outgoing interface */ | |
316670eb A |
386 | struct flowadv ip6oa_flowadv; /* flow advisory code */ |
387 | u_int32_t ip6oa_flags; /* IP6OAF flags (see below) */ | |
388 | #define IP6OAF_SELECT_SRCIF 0x00000001 /* src interface selection */ | |
389 | #define IP6OAF_BOUND_IF 0x00000002 /* boundif value is valid */ | |
390 | #define IP6OAF_BOUND_SRCADDR 0x00000004 /* bound to src address */ | |
391 | #define IP6OAF_NO_CELLULAR 0x00000010 /* skip IFT_CELLULAR */ | |
6d2010ae | 392 | }; |
1c79356b A |
393 | |
394 | extern struct ip6stat ip6stat; /* statistics */ | |
6d2010ae | 395 | extern u_int32_t ip6_id; /* fragment identifier */ |
1c79356b A |
396 | extern int ip6_defhlim; /* default hop limit */ |
397 | extern int ip6_defmcasthlim; /* default multicast hop limit */ | |
398 | extern int ip6_forwarding; /* act as router? */ | |
399 | extern int ip6_forward_srcrt; /* forward src-routed? */ | |
400 | extern int ip6_gif_hlim; /* Hop limit for gif encap packet */ | |
401 | extern int ip6_use_deprecated; /* allow deprecated addr as source */ | |
402 | extern int ip6_rr_prune; /* router renumbering prefix | |
403 | * walk list every 5 sec. */ | |
6d2010ae A |
404 | extern int ip6_mcast_pmtu; /* enable pMTU discovery for multicast? */ |
405 | #define ip6_mapped_addr_on (!ip6_v6only) | |
9bccf70c | 406 | extern int ip6_v6only; |
1c79356b | 407 | |
e2fac8b1 A |
408 | extern int ip6_neighborgcthresh; /* Threshold # of NDP entries for GC */ |
409 | extern int ip6_maxifprefixes; /* Max acceptable prefixes via RA per IF */ | |
410 | extern int ip6_maxifdefrouters; /* Max acceptable def routers via RA */ | |
411 | extern int ip6_maxdynroutes; /* Max # of routes created via redirect */ | |
0b4c1975 | 412 | #if MROUTING |
1c79356b | 413 | extern struct socket *ip6_mrouter; /* multicast routing daemon */ |
b7266188 | 414 | #endif |
1c79356b | 415 | extern int ip6_sendredirects; /* send IP redirects when forwarding? */ |
6d2010ae A |
416 | extern int ip6_maxfragpackets; /* Maximum packets in reassembly queue */ |
417 | extern int ip6_maxfrags; /* Maximum fragments in reassembly queue */ | |
1c79356b A |
418 | extern int ip6_sourcecheck; /* Verify source interface */ |
419 | extern int ip6_sourcecheck_interval; /* Interval between log messages */ | |
316670eb | 420 | extern int ip6_accept_rtadv; /* deprecated */ |
1c79356b A |
421 | extern int ip6_log_interval; |
422 | extern time_t ip6_log_time; | |
423 | extern int ip6_hdrnestlimit; /* upper limit of # of extension headers */ | |
424 | extern int ip6_dad_count; /* DupAddrDetectionTransmits */ | |
6d2010ae | 425 | extern int ip6_only_allow_rfc4193_prefix; /* RFC4193 Unique Local Unicast Prefixes only */ |
1c79356b A |
426 | |
427 | extern u_int32_t ip6_flow_seq; | |
428 | extern int ip6_auto_flowlabel; | |
9bccf70c A |
429 | extern int ip6_auto_linklocal; |
430 | ||
431 | extern int ip6_anonportmin; /* minimum ephemeral port */ | |
432 | extern int ip6_anonportmax; /* maximum ephemeral port */ | |
433 | extern int ip6_lowportmin; /* minimum reserved port */ | |
434 | extern int ip6_lowportmax; /* maximum reserved port */ | |
435 | ||
436 | extern int ip6_use_tempaddr; /* whether to use temporary addresses. */ | |
6d2010ae A |
437 | extern int ip6_prefer_tempaddr; /* whether to prefer temporary addresses |
438 | in the source address selection */ | |
439 | extern int ip6_use_defzone; /* whether to use the default scope zone | |
440 | when unspecified */ | |
1c79356b | 441 | |
1c79356b | 442 | extern struct pr_usrreqs rip6_usrreqs; |
2d21ac55 | 443 | extern struct pr_usrreqs icmp6_dgram_usrreqs; |
6d2010ae A |
444 | |
445 | extern int ip6_doscopedroute; | |
316670eb | 446 | extern int ip6_restrictrecvif; |
6d2010ae | 447 | |
9bccf70c | 448 | struct sockopt; |
1c79356b A |
449 | |
450 | struct inpcb; | |
1c79356b | 451 | |
2d21ac55 A |
452 | int icmp6_ctloutput(struct socket *, struct sockopt *); |
453 | int icmp6_dgram_ctloutput(struct socket *, struct sockopt *); | |
454 | int icmp6_dgram_send(struct socket *, int , struct mbuf *, struct sockaddr *, struct mbuf *, struct proc *); | |
455 | int icmp6_dgram_attach(struct socket *, int , struct proc *); | |
456 | ||
1c79356b | 457 | |
9bccf70c | 458 | struct in6_ifaddr; |
91447636 | 459 | void ip6_init(void); |
91447636 A |
460 | void ip6_input(struct mbuf *); |
461 | struct in6_ifaddr *ip6_getdstifaddr(struct mbuf *); | |
462 | void ip6_freepcbopts(struct ip6_pktopts *); | |
6d2010ae | 463 | int ip6_unknown_opt(u_int8_t *, struct mbuf *, int); |
91447636 A |
464 | char * ip6_get_prevhdr(struct mbuf *, int); |
465 | int ip6_nexthdr(struct mbuf *, int, int, int *); | |
466 | int ip6_lasthdr(struct mbuf *, int, int, int *); | |
467 | ||
6d2010ae A |
468 | extern void ip6_moptions_init(void); |
469 | extern struct ip6_moptions *ip6_allocmoptions(int); | |
470 | extern void im6o_addref(struct ip6_moptions *, int); | |
471 | extern void im6o_remref(struct ip6_moptions *); | |
472 | ||
2d21ac55 A |
473 | struct ip6aux *ip6_addaux(struct mbuf *); |
474 | struct ip6aux *ip6_findaux(struct mbuf *); | |
91447636 | 475 | void ip6_delaux(struct mbuf *); |
6d2010ae A |
476 | extern void ip6_destroyaux(struct ip6aux *); |
477 | extern void ip6_copyaux(struct ip6aux *, struct ip6aux *); | |
91447636 A |
478 | |
479 | int ip6_mforward(struct ip6_hdr *, struct ifnet *, struct mbuf *); | |
480 | int ip6_process_hopopts(struct mbuf *, u_int8_t *, int, u_int32_t *, | |
481 | u_int32_t *); | |
6d2010ae A |
482 | struct mbuf **ip6_savecontrol_v4(struct inpcb *, struct mbuf *, |
483 | struct mbuf **, int *); | |
484 | int ip6_savecontrol(struct inpcb *, struct mbuf *, struct mbuf **); | |
316670eb | 485 | struct mbuf *ip6_forward(struct mbuf *, struct route_in6 *, int); |
6d2010ae A |
486 | void ip6_notify_pmtu __P((struct inpcb *, struct sockaddr_in6 *, |
487 | u_int32_t *)); | |
91447636 | 488 | void ip6_mloopback(struct ifnet *, struct mbuf *, struct sockaddr_in6 *); |
6d2010ae | 489 | int ip6_output(struct mbuf *, struct ip6_pktopts *, struct route_in6 *, |
316670eb A |
490 | int, struct ip6_moptions *, struct ifnet **, struct ip6_out_args *); |
491 | int ip6_output_list(struct mbuf *, int, struct ip6_pktopts *, | |
492 | struct route_in6 *, int, struct ip6_moptions *, struct ifnet **, | |
6d2010ae | 493 | struct ip6_out_args *); |
91447636 | 494 | int ip6_ctloutput(struct socket *, struct sockopt *sopt); |
b0d623f7 | 495 | void ip6_initpktopts(struct ip6_pktopts *); |
91447636 | 496 | int ip6_setpktoptions(struct mbuf *, struct ip6_pktopts *, int, int); |
6d2010ae | 497 | void ip6_clearpktopts(struct ip6_pktopts *, int); |
91447636 A |
498 | struct ip6_pktopts *ip6_copypktopts(struct ip6_pktopts *, int); |
499 | int ip6_optlen(struct inpcb *); | |
500 | ||
6d2010ae | 501 | int route6_input(struct mbuf **, int *, int); |
91447636 A |
502 | |
503 | void frag6_init(void); | |
6d2010ae | 504 | int frag6_input(struct mbuf **, int *, int); |
91447636 A |
505 | void frag6_slowtimo(void); |
506 | void frag6_drain(void); | |
507 | ||
6d2010ae | 508 | int rip6_input(struct mbuf **, int *, int); |
91447636 A |
509 | void rip6_ctlinput(int, struct sockaddr *, void *); |
510 | int rip6_ctloutput(struct socket *so, struct sockopt *sopt); | |
6d2010ae A |
511 | int rip6_output(struct mbuf *, struct socket *, struct sockaddr_in6 *, struct mbuf *, int); |
512 | ||
513 | int dest6_input(struct mbuf **, int *, int); | |
514 | extern struct in6_addr *in6_selectsrc(struct sockaddr_in6 *, | |
515 | struct ip6_pktopts *, struct inpcb *, struct route_in6 *, | |
516 | struct ifnet **, struct in6_addr *, unsigned int, int *); | |
517 | extern struct in6_addrpolicy * | |
518 | in6_addrsel_lookup_policy(struct sockaddr_in6 *); | |
519 | int in6_selectroute(struct sockaddr_in6 *, struct sockaddr_in6 *, | |
520 | struct ip6_pktopts *, struct ip6_moptions *, struct route_in6 *, | |
316670eb | 521 | struct ifnet **, struct rtentry **, int, const struct ip6_out_args *); |
6d2010ae A |
522 | int ip6_setpktopts(struct mbuf *control, struct ip6_pktopts *opt, struct ip6_pktopts *stickyopt, int uproto); |
523 | u_int32_t ip6_randomid(void); | |
524 | u_int32_t ip6_randomflowlabel(void); | |
91447636 | 525 | |
9bccf70c | 526 | #endif /* KERNEL */ |
91447636 | 527 | #endif /* KERNEL_PRIVATE */ |
1c79356b A |
528 | |
529 | #endif /* !_NETINET6_IP6_VAR_H_ */ |