1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2009 The FreeBSD Foundation
5 *
6 * This software was developed by Rui Paulo under sponsorship from the
7 * FreeBSD Foundation.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 *
30 */
31 #ifndef _NET80211_IEEE80211_MESH_H_
32 #define _NET80211_IEEE80211_MESH_H_
33
34 #define IEEE80211_MESH_DEFAULT_TTL 31
35 #define IEEE80211_MESH_MAX_NEIGHBORS 15
36
37 /*
38 * NB: all structures are __packed so sizeof works on arm, et. al.
39 */
40 /*
41 * 802.11s Information Elements.
42 */
43 /* Mesh Configuration */
44 #define IEEE80211_MESH_CONF_SZ (7)
45 struct ieee80211_meshconf_ie {
46 uint8_t conf_ie; /* IEEE80211_ELEMID_MESHCONF */
47 uint8_t conf_len;
48 uint8_t conf_pselid; /* Active Path Sel. Proto. ID */
49 uint8_t conf_pmetid; /* Active Metric Identifier */
50 uint8_t conf_ccid; /* Congestion Control Mode ID */
51 uint8_t conf_syncid; /* Sync. Protocol ID */
52 uint8_t conf_authid; /* Auth. Protocol ID */
53 uint8_t conf_form; /* Formation Information */
54 uint8_t conf_cap;
55 } __packed;
56
57 /* Hybrid Wireless Mesh Protocol */
58 enum {
59 /* 0 reserved */
60 IEEE80211_MESHCONF_PATH_HWMP = 1,
61 /* 2-254 reserved */
62 IEEE80211_MESHCONF_PATH_VENDOR = 255,
63 };
64
65 /* Airtime Link Metric */
66 enum {
67 /* 0 reserved */
68 IEEE80211_MESHCONF_METRIC_AIRTIME = 1,
69 /* 2-254 reserved */
70 IEEE80211_MESHCONF_METRIC_VENDOR = 255,
71 };
72
73 /* Congestion Control */
74 enum {
75 IEEE80211_MESHCONF_CC_DISABLED = 0,
76 IEEE80211_MESHCONF_CC_SIG = 1,
77 /* 2-254 reserved */
78 IEEE80211_MESHCONF_CC_VENDOR = 255,
79 };
80
81 /* Neighbour Offset */
82 enum {
83 /* 0 reserved */
84 IEEE80211_MESHCONF_SYNC_NEIGHOFF = 1,
85 /* 2-254 rserved */
86 IEEE80211_MESHCONF_SYNC_VENDOR = 255,
87 };
88
89 /* Authentication Protocol Identifier */
90 enum {
91 IEEE80211_MESHCONF_AUTH_DISABLED = 0,
92 /* Simultaneous Authenticaction of Equals */
93 IEEE80211_MESHCONF_AUTH_SEA = 1,
94 IEEE80211_MESHCONF_AUTH_8021X = 2, /* IEEE 802.1X */
95 /* 3-254 reserved */
96 IEEE80211_MESHCONF_AUTH_VENDOR = 255,
97 };
98
99 /* Mesh Formation Info */
100 #define IEEE80211_MESHCONF_FORM_GATE 0x01 /* Connected to Gate */
101 #define IEEE80211_MESHCONF_FORM_NNEIGH_MASK 0x7E /* Number of Neighbours */
102 #define IEEE80211_MESHCONF_FORM_SA 0xF0 /* indicating 802.1X auth */
103
104 /* Mesh Capability */
105 #define IEEE80211_MESHCONF_CAP_AP 0x01 /* Accepting Peers */
106 #define IEEE80211_MESHCONF_CAP_MCCAS 0x02 /* MCCA supported */
107 #define IEEE80211_MESHCONF_CAP_MCCAE 0x04 /* MCCA enabled */
108 #define IEEE80211_MESHCONF_CAP_FWRD 0x08 /* forwarding enabled */
109 #define IEEE80211_MESHCONF_CAP_BTR 0x10 /* Beacon Timing Report Enab */
110 #define IEEE80211_MESHCONF_CAP_TBTT 0x20 /* TBTT Adjusting */
111 #define IEEE80211_MESHCONF_CAP_PSL 0x40 /* Power Save Level */
112 /* 0x80 reserved */
113
114 /* Mesh Identifier */
115 struct ieee80211_meshid_ie {
116 uint8_t id_ie; /* IEEE80211_ELEMID_MESHID */
117 uint8_t id_len;
118 } __packed;
119
120 /* Link Metric Report */
121 struct ieee80211_meshlmetric_ie {
122 uint8_t lm_ie; /* IEEE80211_ACTION_MESH_LMETRIC */
123 uint8_t lm_len;
124 uint8_t lm_flags;
125 #define IEEE80211_MESH_LMETRIC_FLAGS_REQ 0x01 /* Request */
126 /*
127 * XXX: this field should be variable in size and depend on
128 * the active active path selection metric identifier
129 */
130 uint32_t lm_metric;
131 #define IEEE80211_MESHLMETRIC_INITIALVAL 0
132 } __packed;
133
134 /* Congestion Notification */
135 struct ieee80211_meshcngst_ie {
136 uint8_t cngst_ie; /* IEEE80211_ELEMID_MESHCNGST */
137 uint8_t cngst_len;
138 uint16_t cngst_timer[4]; /* Expiration Timers: AC_BK,
139 AC_BE, AC_VI, AC_VO */
140 } __packed;
141
142 /* Peer Link Management */
143 #define IEEE80211_MPM_BASE_SZ (4)
144 #define IEEE80211_MPM_MAX_SZ (8)
145 struct ieee80211_meshpeer_ie {
146 uint8_t peer_ie; /* IEEE80211_ELEMID_MESHPEER */
147 uint8_t peer_len;
148 uint16_t peer_proto; /* Peer Management Protocol */
149 uint16_t peer_llinkid; /* Local Link ID */
150 uint16_t peer_linkid; /* Peer Link ID */
151 uint16_t peer_rcode;
152 } __packed;
153
154 /* Mesh Peering Protocol Identifier field value */
155 enum {
156 IEEE80211_MPPID_MPM = 0, /* Mesh peering management */
157 IEEE80211_MPPID_AUTH_MPM = 1, /* Auth. mesh peering exchange */
158 /* 2-65535 reserved */
159 };
160
161 #ifdef notyet
162 /* Mesh Channel Switch Annoucement */
163 struct ieee80211_meshcsa_ie {
164 uint8_t csa_ie; /* IEEE80211_ELEMID_MESHCSA */
165 uint8_t csa_len;
166 uint8_t csa_mode;
167 uint8_t csa_newclass; /* New Regulatory Class */
168 uint8_t csa_newchan;
169 uint8_t csa_precvalue; /* Precedence Value */
170 uint8_t csa_count;
171 } __packed;
172
173 /* Mesh TIM */
174 /* Equal to the non Mesh version */
175
176 /* Mesh Awake Window */
177 struct ieee80211_meshawakew_ie {
178 uint8_t awakew_ie; /* IEEE80211_ELEMID_MESHAWAKEW */
179 uint8_t awakew_len;
180 uint8_t awakew_windowlen; /* in TUs */
181 } __packed;
182
183 /* Mesh Beacon Timing */
184 struct ieee80211_meshbeacont_ie {
185 uint8_t beacont_ie; /* IEEE80211_ELEMID_MESHBEACONT */
186 uint8_t beacont_len;
187 struct {
188 uint8_t mp_aid; /* Least Octet of AID */
189 uint16_t mp_btime; /* Beacon Time */
190 uint16_t mp_bint; /* Beacon Interval */
191 } __packed mp[1]; /* NB: variable size */
192 } __packed;
193 #endif
194
195 /* Gate (GANN) Annoucement */
196 /*
197 * NB: these macros used for the length in the IEs does not include 2 bytes
198 * for _ie and _len fields as is defined by the standard.
199 */
200 #define IEEE80211_MESHGANN_BASE_SZ (15)
201 struct ieee80211_meshgann_ie {
202 uint8_t gann_ie; /* IEEE80211_ELEMID_MESHGANN */
203 uint8_t gann_len;
204 uint8_t gann_flags;
205 uint8_t gann_hopcount;
206 uint8_t gann_ttl;
207 uint8_t gann_addr[IEEE80211_ADDR_LEN];
208 uint32_t gann_seq; /* GANN Sequence Number */
209 uint16_t gann_interval; /* GANN Interval */
210 } __packed;
211
212 /* Root (MP) Annoucement */
213 #define IEEE80211_MESHRANN_BASE_SZ (21)
214 struct ieee80211_meshrann_ie {
215 uint8_t rann_ie; /* IEEE80211_ELEMID_MESHRANN */
216 uint8_t rann_len;
217 uint8_t rann_flags;
218 #define IEEE80211_MESHRANN_FLAGS_GATE 0x01 /* Mesh Gate */
219 uint8_t rann_hopcount;
220 uint8_t rann_ttl;
221 uint8_t rann_addr[IEEE80211_ADDR_LEN];
222 uint32_t rann_seq; /* HWMP Sequence Number */
223 uint32_t rann_interval;
224 uint32_t rann_metric;
225 } __packed;
226
227 /* Mesh Path Request */
228 #define IEEE80211_MESHPREQ_BASE_SZ (26)
229 #define IEEE80211_MESHPREQ_BASE_SZ_AE (32)
230 #define IEEE80211_MESHPREQ_TRGT_SZ (11)
231 #define IEEE80211_MESHPREQ_TCNT_OFFSET (27)
232 #define IEEE80211_MESHPREQ_TCNT_OFFSET_AE (33)
233 struct ieee80211_meshpreq_ie {
234 uint8_t preq_ie; /* IEEE80211_ELEMID_MESHPREQ */
235 uint8_t preq_len;
236 uint8_t preq_flags;
237 #define IEEE80211_MESHPREQ_FLAGS_GATE 0x01 /* Mesh Gate */
238 #define IEEE80211_MESHPREQ_FLAGS_AM 0x02 /* 0 = bcast / 1 = ucast */
239 #define IEEE80211_MESHPREQ_FLAGS_PP 0x04 /* Proactive PREP */
240 #define IEEE80211_MESHPREQ_FLAGS_AE 0x40 /* Address Extension */
241 uint8_t preq_hopcount;
242 uint8_t preq_ttl;
243 uint32_t preq_id;
244 uint8_t preq_origaddr[IEEE80211_ADDR_LEN];
245 uint32_t preq_origseq; /* HWMP Sequence Number */
246 /* NB: may have Originator External Address */
247 uint8_t preq_orig_ext_addr[IEEE80211_ADDR_LEN];
248 uint32_t preq_lifetime;
249 uint32_t preq_metric;
250 uint8_t preq_tcount; /* target count */
251 struct {
252 uint8_t target_flags;
253 #define IEEE80211_MESHPREQ_TFLAGS_TO 0x01 /* Target Only */
254 #define IEEE80211_MESHPREQ_TFLAGS_USN 0x04 /* Unknown HWMP seq number */
255 uint8_t target_addr[IEEE80211_ADDR_LEN];
256 uint32_t target_seq; /* HWMP Sequence Number */
257 } __packed preq_targets[1]; /* NB: variable size */
258 } __packed;
259
260 /* Mesh Path Reply */
261 #define IEEE80211_MESHPREP_BASE_SZ (31)
262 #define IEEE80211_MESHPREP_BASE_SZ_AE (37)
263 struct ieee80211_meshprep_ie {
264 uint8_t prep_ie; /* IEEE80211_ELEMID_MESHPREP */
265 uint8_t prep_len;
266 uint8_t prep_flags;
267 #define IEEE80211_MESHPREP_FLAGS_AE 0x40 /* Address Extension */
268 uint8_t prep_hopcount;
269 uint8_t prep_ttl;
270 uint8_t prep_targetaddr[IEEE80211_ADDR_LEN];
271 uint32_t prep_targetseq;
272 /* NB: May have Target External Address */
273 uint8_t prep_target_ext_addr[IEEE80211_ADDR_LEN];
274 uint32_t prep_lifetime;
275 uint32_t prep_metric;
276 uint8_t prep_origaddr[IEEE80211_ADDR_LEN];
277 uint32_t prep_origseq; /* HWMP Sequence Number */
278 } __packed;
279
280 /* Mesh Path Error */
281 #define IEEE80211_MESHPERR_MAXDEST (19)
282 #define IEEE80211_MESHPERR_NDEST_OFFSET (3)
283 #define IEEE80211_MESHPERR_BASE_SZ (2)
284 #define IEEE80211_MESHPERR_DEST_SZ (13)
285 #define IEEE80211_MESHPERR_DEST_SZ_AE (19)
286 struct ieee80211_meshperr_ie {
287 uint8_t perr_ie; /* IEEE80211_ELEMID_MESHPERR */
288 uint8_t perr_len;
289 uint8_t perr_ttl;
290 uint8_t perr_ndests; /* Number of Destinations */
291 struct {
292 uint8_t dest_flags;
293 #define IEEE80211_MESHPERR_DFLAGS_USN 0x01 /* XXX: not part of standard */
294 #define IEEE80211_MESHPERR_DFLAGS_RC 0x02 /* XXX: not part of standard */
295 #define IEEE80211_MESHPERR_FLAGS_AE 0x40 /* Address Extension */
296 uint8_t dest_addr[IEEE80211_ADDR_LEN];
297 uint32_t dest_seq; /* HWMP Sequence Number */
298 /* NB: May have Destination External Address */
299 uint8_t dest_ext_addr[IEEE80211_ADDR_LEN];
300 uint16_t dest_rcode;
301 } __packed perr_dests[1]; /* NB: variable size */
302 } __packed;
303
304 #ifdef notyet
305 /* Mesh Proxy Update */
306 struct ieee80211_meshpu_ie {
307 uint8_t pu_ie; /* IEEE80211_ELEMID_MESHPU */
308 uint8_t pu_len;
309 uint8_t pu_flags;
310 #define IEEE80211_MESHPU_FLAGS_MASK 0x1
311 #define IEEE80211_MESHPU_FLAGS_DEL 0x0
312 #define IEEE80211_MESHPU_FLAGS_ADD 0x1
313 uint8_t pu_seq; /* PU Sequence Number */
314 uint8_t pu_addr[IEEE80211_ADDR_LEN];
315 uint8_t pu_naddr; /* Number of Proxied Addresses */
316 /* NB: proxied address follows */
317 } __packed;
318
319 /* Mesh Proxy Update Confirmation */
320 struct ieee80211_meshpuc_ie {
321 uint8_t puc_ie; /* IEEE80211_ELEMID_MESHPUC */
322 uint8_t puc_len;
323 uint8_t puc_flags;
324 uint8_t puc_seq; /* PU Sequence Number */
325 uint8_t puc_daddr[IEEE80211_ADDR_LEN];
326 } __packed;
327 #endif
328
329 /*
330 * 802.11s Action Frames
331 * XXX: these are wrong, and some of them should be
332 * under MESH category while PROXY is under MULTIHOP category.
333 */
334 #define IEEE80211_ACTION_CAT_INTERWORK 15
335 #define IEEE80211_ACTION_CAT_RESOURCE 16
336 #define IEEE80211_ACTION_CAT_PROXY 17
337
338 /*
339 * Mesh Peering Action codes.
340 */
341 enum {
342 /* 0 reserved */
343 IEEE80211_ACTION_MESHPEERING_OPEN = 1,
344 IEEE80211_ACTION_MESHPEERING_CONFIRM = 2,
345 IEEE80211_ACTION_MESHPEERING_CLOSE = 3,
346 /* 4-255 reserved */
347 };
348
349 /*
350 * Mesh Action code.
351 */
352 enum {
353 IEEE80211_ACTION_MESH_LMETRIC = 0, /* Mesh Link Metric Report */
354 IEEE80211_ACTION_MESH_HWMP = 1, /* HWMP Mesh Path Selection */
355 IEEE80211_ACTION_MESH_GANN = 2, /* Gate Announcement */
356 IEEE80211_ACTION_MESH_CC = 3, /* Congestion Control */
357 IEEE80211_ACTION_MESH_MCCA_SREQ = 4, /* MCCA Setup Request */
358 IEEE80211_ACTION_MESH_MCCA_SREP = 5, /* MCCA Setup Reply */
359 IEEE80211_ACTION_MESH_MCCA_AREQ = 6, /* MCCA Advertisement Req. */
360 IEEE80211_ACTION_MESH_MCCA_ADVER =7, /* MCCA Advertisement */
361 IEEE80211_ACTION_MESH_MCCA_TRDOWN = 8, /* MCCA Teardown */
362 IEEE80211_ACTION_MESH_TBTT_REQ = 9, /* TBTT Adjustment Request */
363 IEEE80211_ACTION_MESH_TBTT_RES = 10, /* TBTT Adjustment Response */
364 /* 11-255 reserved */
365 };
366
367 /*
368 * Different mesh control structures based on the AE
369 * (Address Extension) bits.
370 */
371 struct ieee80211_meshcntl {
372 uint8_t mc_flags; /* Address Extension 00 */
373 uint8_t mc_ttl; /* TTL */
374 uint8_t mc_seq[4]; /* Sequence No. */
375 /* NB: more addresses may follow */
376 } __packed;
377
378 struct ieee80211_meshcntl_ae01 {
379 uint8_t mc_flags; /* Address Extension 01 */
380 uint8_t mc_ttl; /* TTL */
381 uint8_t mc_seq[4]; /* Sequence No. */
382 uint8_t mc_addr4[IEEE80211_ADDR_LEN];
383 } __packed;
384
385 struct ieee80211_meshcntl_ae10 {
386 uint8_t mc_flags; /* Address Extension 10 */
387 uint8_t mc_ttl; /* TTL */
388 uint8_t mc_seq[4]; /* Sequence No. */
389 uint8_t mc_addr5[IEEE80211_ADDR_LEN];
390 uint8_t mc_addr6[IEEE80211_ADDR_LEN];
391 } __packed;
392
393 #define IEEE80211_MESH_AE_MASK 0x03
394 enum {
395 IEEE80211_MESH_AE_00 = 0, /* MC has no AE subfield */
396 IEEE80211_MESH_AE_01 = 1, /* MC contain addr4 */
397 IEEE80211_MESH_AE_10 = 2, /* MC contain addr5 & addr6 */
398 IEEE80211_MESH_AE_11 = 3, /* RESERVED */
399 };
400
401 #ifdef _KERNEL
402 MALLOC_DECLARE(M_80211_MESH_PREQ);
403 MALLOC_DECLARE(M_80211_MESH_PREP);
404 MALLOC_DECLARE(M_80211_MESH_PERR);
405
406 MALLOC_DECLARE(M_80211_MESH_RT);
407 MALLOC_DECLARE(M_80211_MESH_GT_RT);
408 /*
409 * Basic forwarding information:
410 * o Destination MAC
411 * o Next-hop MAC
412 * o Precursor list (not implemented yet)
413 * o Path timeout
414 * The rest is part of the active Mesh path selection protocol.
415 * XXX: to be moved out later.
416 */
417 struct ieee80211_mesh_route {
418 TAILQ_ENTRY(ieee80211_mesh_route) rt_next;
419 struct ieee80211vap *rt_vap;
420 ieee80211_rte_lock_t rt_lock; /* fine grained route lock */
421 struct callout rt_discovery; /* discovery timeout */
422 int rt_updtime; /* last update time */
423 uint8_t rt_dest[IEEE80211_ADDR_LEN];
424 uint8_t rt_mesh_gate[IEEE80211_ADDR_LEN]; /* meshDA */
425 uint8_t rt_nexthop[IEEE80211_ADDR_LEN];
426 uint32_t rt_metric; /* path metric */
427 uint16_t rt_nhops; /* number of hops */
428 uint16_t rt_flags;
429 #define IEEE80211_MESHRT_FLAGS_DISCOVER 0x01 /* path discovery */
430 #define IEEE80211_MESHRT_FLAGS_VALID 0x02 /* path discovery complete */
431 #define IEEE80211_MESHRT_FLAGS_PROXY 0x04 /* proxy entry */
432 #define IEEE80211_MESHRT_FLAGS_GATE 0x08 /* mesh gate entry */
433 uint32_t rt_lifetime; /* route timeout */
434 uint32_t rt_lastmseq; /* last seq# seen dest */
435 uint32_t rt_ext_seq; /* proxy seq number */
436 void *rt_priv; /* private data */
437 };
438 #define IEEE80211_MESH_ROUTE_PRIV(rt, cast) ((cast *)rt->rt_priv)
439
440 /*
441 * Stored information about known mesh gates.
442 */
443 struct ieee80211_mesh_gate_route {
444 TAILQ_ENTRY(ieee80211_mesh_gate_route) gr_next;
445 uint8_t gr_addr[IEEE80211_ADDR_LEN];
446 uint32_t gr_lastseq;
447 struct ieee80211_mesh_route *gr_route;
448 };
449
450 #define IEEE80211_MESH_PROTO_DSZ 12 /* description size */
451 /*
452 * Mesh Path Selection Protocol.
453 */
454 enum ieee80211_state;
455 struct ieee80211_mesh_proto_path {
456 uint8_t mpp_active;
457 char mpp_descr[IEEE80211_MESH_PROTO_DSZ];
458 uint8_t mpp_ie;
459 struct ieee80211_node *
460 (*mpp_discover)(struct ieee80211vap *,
461 const uint8_t [IEEE80211_ADDR_LEN],
462 struct mbuf *);
463 void (*mpp_peerdown)(struct ieee80211_node *);
464 void (*mpp_senderror)(struct ieee80211vap *,
465 const uint8_t [IEEE80211_ADDR_LEN],
466 struct ieee80211_mesh_route *, int);
467 void (*mpp_vattach)(struct ieee80211vap *);
468 void (*mpp_vdetach)(struct ieee80211vap *);
469 int (*mpp_newstate)(struct ieee80211vap *,
470 enum ieee80211_state, int);
471 const size_t mpp_privlen; /* size required in the routing table
472 for private data */
473 int mpp_inact; /* inact. timeout for invalid routes
474 (ticks) */
475 };
476
477 /*
478 * Mesh Link Metric Report Protocol.
479 */
480 struct ieee80211_mesh_proto_metric {
481 uint8_t mpm_active;
482 char mpm_descr[IEEE80211_MESH_PROTO_DSZ];
483 uint8_t mpm_ie;
484 uint32_t (*mpm_metric)(struct ieee80211_node *);
485 };
486
487 #ifdef notyet
488 /*
489 * Mesh Authentication Protocol.
490 */
491 struct ieee80211_mesh_proto_auth {
492 uint8_t mpa_ie[4];
493 };
494
495 struct ieee80211_mesh_proto_congestion {
496 };
497
498 struct ieee80211_mesh_proto_sync {
499 };
500 #endif
501
502 typedef uint32_t ieee80211_mesh_seq;
503 #define IEEE80211_MESH_SEQ_LEQ(a, b) ((int32_t)((a)-(b)) <= 0)
504 #define IEEE80211_MESH_SEQ_GEQ(a, b) ((int32_t)((a)-(b)) >= 0)
505
506 struct ieee80211_mesh_state {
507 int ms_idlen;
508 uint8_t ms_id[IEEE80211_MESHID_LEN];
509 ieee80211_mesh_seq ms_seq; /* seq no for meshcntl */
510 uint16_t ms_neighbors;
511 uint8_t ms_ttl; /* mesh ttl set in packets */
512 #define IEEE80211_MESHFLAGS_AP 0x01 /* accept peers */
513 #define IEEE80211_MESHFLAGS_GATE 0x02 /* mesh gate role */
514 #define IEEE80211_MESHFLAGS_FWD 0x04 /* forward packets */
515 #define IEEE80211_MESHFLAGS_ROOT 0x08 /* configured as root */
516 uint8_t ms_flags;
517 ieee80211_rt_lock_t ms_rt_lock;
518 struct callout ms_cleantimer;
519 struct callout ms_gatetimer;
520 ieee80211_mesh_seq ms_gateseq;
521 TAILQ_HEAD(, ieee80211_mesh_gate_route) ms_known_gates;
522 TAILQ_HEAD(, ieee80211_mesh_route) ms_routes;
523 struct ieee80211_mesh_proto_metric *ms_pmetric;
524 struct ieee80211_mesh_proto_path *ms_ppath;
525 };
526 void ieee80211_mesh_attach(struct ieee80211com *);
527 void ieee80211_mesh_detach(struct ieee80211com *);
528
529 struct ieee80211_mesh_route *
530 ieee80211_mesh_rt_find(struct ieee80211vap *,
531 const uint8_t [IEEE80211_ADDR_LEN]);
532 struct ieee80211_mesh_route *
533 ieee80211_mesh_rt_add(struct ieee80211vap *,
534 const uint8_t [IEEE80211_ADDR_LEN]);
535 void ieee80211_mesh_rt_del(struct ieee80211vap *,
536 const uint8_t [IEEE80211_ADDR_LEN]);
537 void ieee80211_mesh_rt_flush(struct ieee80211vap *);
538 void ieee80211_mesh_rt_flush_peer(struct ieee80211vap *,
539 const uint8_t [IEEE80211_ADDR_LEN]);
540 int ieee80211_mesh_rt_update(struct ieee80211_mesh_route *rt, int);
541 void ieee80211_mesh_proxy_check(struct ieee80211vap *,
542 const uint8_t [IEEE80211_ADDR_LEN]);
543
544 int ieee80211_mesh_register_proto_path(const
545 struct ieee80211_mesh_proto_path *);
546 int ieee80211_mesh_register_proto_metric(const
547 struct ieee80211_mesh_proto_metric *);
548
549 uint8_t * ieee80211_add_meshid(uint8_t *, struct ieee80211vap *);
550 uint8_t * ieee80211_add_meshconf(uint8_t *, struct ieee80211vap *);
551 uint8_t * ieee80211_add_meshpeer(uint8_t *, uint8_t, uint16_t, uint16_t,
552 uint16_t);
553 uint8_t * ieee80211_add_meshlmetric(uint8_t *, uint8_t, uint32_t);
554 uint8_t * ieee80211_add_meshgate(uint8_t *,
555 struct ieee80211_meshgann_ie *);
556
557 void ieee80211_mesh_node_init(struct ieee80211vap *,
558 struct ieee80211_node *);
559 void ieee80211_mesh_node_cleanup(struct ieee80211_node *);
560 void ieee80211_parse_meshid(struct ieee80211_node *,
561 const uint8_t *);
562 struct ieee80211_scanparams;
563 void ieee80211_mesh_init_neighbor(struct ieee80211_node *,
564 const struct ieee80211_frame *,
565 const struct ieee80211_scanparams *);
566 void ieee80211_mesh_update_beacon(struct ieee80211vap *,
567 struct ieee80211_beacon_offsets *);
568 struct ieee80211_mesh_gate_route *
569 ieee80211_mesh_mark_gate(struct ieee80211vap *,
570 const uint8_t *, struct ieee80211_mesh_route *);
571 void ieee80211_mesh_forward_to_gates(struct ieee80211vap *,
572 struct ieee80211_mesh_route *);
573 struct ieee80211_node *
574 ieee80211_mesh_find_txnode(struct ieee80211vap *,
575 const uint8_t [IEEE80211_ADDR_LEN]);
576
577 /*
578 * Return non-zero if proxy operation is enabled.
579 */
580 static __inline int
ieee80211_mesh_isproxyena(struct ieee80211vap * vap)581 ieee80211_mesh_isproxyena(struct ieee80211vap *vap)
582 {
583 struct ieee80211_mesh_state *ms = vap->iv_mesh;
584 return (ms->ms_flags &
585 (IEEE80211_MESHFLAGS_AP | IEEE80211_MESHFLAGS_GATE)) != 0;
586 }
587
588 /*
589 * Process an outbound frame: if a path is known to the
590 * destination then return a reference to the next hop
591 * for immediate transmission. Otherwise initiate path
592 * discovery and, if possible queue the packet to be
593 * sent when path discovery completes.
594 */
595 static __inline struct ieee80211_node *
ieee80211_mesh_discover(struct ieee80211vap * vap,const uint8_t dest[IEEE80211_ADDR_LEN],struct mbuf * m)596 ieee80211_mesh_discover(struct ieee80211vap *vap,
597 const uint8_t dest[IEEE80211_ADDR_LEN], struct mbuf *m)
598 {
599 struct ieee80211_mesh_state *ms = vap->iv_mesh;
600 return ms->ms_ppath->mpp_discover(vap, dest, m);
601 }
602
603 #endif /* _KERNEL */
604 #endif /* !_NET80211_IEEE80211_MESH_H_ */
605