1 /*-
2 * Copyright (c) 2009 The FreeBSD Foundation
3 * All rights reserved.
4 *
5 * This software was developed by Rui Paulo under sponsorship from the
6 * FreeBSD Foundation.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $FreeBSD$
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
92 IEEE80211_MESHCONF_AUTH_DISABLED = 0,
93 /* Simultaneous Authenticaction of Equals */
94 IEEE80211_MESHCONF_AUTH_SEA = 1,
95 IEEE80211_MESHCONF_AUTH_8021X = 2, /* IEEE 802.1X */
96 /* 3-254 reserved */
97 IEEE80211_MESHCONF_AUTH_VENDOR = 255,
98 };
99
100 /* Mesh Formation Info */
101 #define IEEE80211_MESHCONF_FORM_GATE 0x01 /* Connected to Gate */
102 #define IEEE80211_MESHCONF_FORM_NNEIGH_MASK 0x7E /* Number of Neighbours */
103 #define IEEE80211_MESHCONF_FORM_SA 0xF0 /* indicating 802.1X auth */
104
105 /* Mesh Capability */
106 #define IEEE80211_MESHCONF_CAP_AP 0x01 /* Accepting Peers */
107 #define IEEE80211_MESHCONF_CAP_MCCAS 0x02 /* MCCA supported */
108 #define IEEE80211_MESHCONF_CAP_MCCAE 0x04 /* MCCA enabled */
109 #define IEEE80211_MESHCONF_CAP_FWRD 0x08 /* forwarding enabled */
110 #define IEEE80211_MESHCONF_CAP_BTR 0x10 /* Beacon Timing Report Enab */
111 #define IEEE80211_MESHCONF_CAP_TBTT 0x20 /* TBTT Adjusting */
112 #define IEEE80211_MESHCONF_CAP_PSL 0x40 /* Power Save Level */
113 /* 0x80 reserved */
114
115 /* Mesh Identifier */
116 struct ieee80211_meshid_ie {
117 uint8_t id_ie; /* IEEE80211_ELEMID_MESHID */
118 uint8_t id_len;
119 } __packed;
120
121 /* Link Metric Report */
122 struct ieee80211_meshlmetric_ie {
123 uint8_t lm_ie; /* IEEE80211_ACTION_MESH_LMETRIC */
124 uint8_t lm_len;
125 uint8_t lm_flags;
126 #define IEEE80211_MESH_LMETRIC_FLAGS_REQ 0x01 /* Request */
127 /*
128 * XXX: this field should be variable in size and depend on
129 * the active active path selection metric identifier
130 */
131 uint32_t lm_metric;
132 #define IEEE80211_MESHLMETRIC_INITIALVAL 0
133 } __packed;
134
135 /* Congestion Notification */
136 struct ieee80211_meshcngst_ie {
137 uint8_t cngst_ie; /* IEEE80211_ELEMID_MESHCNGST */
138 uint8_t cngst_len;
139 uint16_t cngst_timer[4]; /* Expiration Timers: AC_BK,
140 AC_BE, AC_VI, AC_VO */
141 } __packed;
142
143 /* Peer Link Management */
144 #define IEEE80211_MPM_BASE_SZ (4)
145 #define IEEE80211_MPM_MAX_SZ (8)
146 struct ieee80211_meshpeer_ie {
147 uint8_t peer_ie; /* IEEE80211_ELEMID_MESHPEER */
148 uint8_t peer_len;
149 uint16_t peer_proto; /* Peer Management Protocol */
150 uint16_t peer_llinkid; /* Local Link ID */
151 uint16_t peer_linkid; /* Peer Link ID */
152 uint16_t peer_rcode;
153 } __packed;
154
155 /* Mesh Peering Protocol Identifier field value */
156 enum {
157 IEEE80211_MPPID_MPM = 0, /* Mesh peering management */
158 IEEE80211_MPPID_AUTH_MPM = 1, /* Auth. mesh peering exchange */
159 /* 2-65535 reserved */
160 };
161
162 #ifdef notyet
163 /* Mesh Channel Switch Annoucement */
164 struct ieee80211_meshcsa_ie {
165 uint8_t csa_ie; /* IEEE80211_ELEMID_MESHCSA */
166 uint8_t csa_len;
167 uint8_t csa_mode;
168 uint8_t csa_newclass; /* New Regulatory Class */
169 uint8_t csa_newchan;
170 uint8_t csa_precvalue; /* Precedence Value */
171 uint8_t csa_count;
172 } __packed;
173
174 /* Mesh TIM */
175 /* Equal to the non Mesh version */
176
177 /* Mesh Awake Window */
178 struct ieee80211_meshawakew_ie {
179 uint8_t awakew_ie; /* IEEE80211_ELEMID_MESHAWAKEW */
180 uint8_t awakew_len;
181 uint8_t awakew_windowlen; /* in TUs */
182 } __packed;
183
184 /* Mesh Beacon Timing */
185 struct ieee80211_meshbeacont_ie {
186 uint8_t beacont_ie; /* IEEE80211_ELEMID_MESHBEACONT */
187 uint8_t beacont_len;
188 struct {
189 uint8_t mp_aid; /* Least Octet of AID */
190 uint16_t mp_btime; /* Beacon Time */
191 uint16_t mp_bint; /* Beacon Interval */
192 } __packed mp[1]; /* NB: variable size */
193 } __packed;
194 #endif
195
196 /* Gate (GANN) Annoucement */
197 /*
198 * NB: these macros used for the length in the IEs does not include 2 bytes
199 * for _ie and _len fields as is defined by the standard.
200 */
201 #define IEEE80211_MESHGANN_BASE_SZ (15)
202 struct ieee80211_meshgann_ie {
203 uint8_t gann_ie; /* IEEE80211_ELEMID_MESHGANN */
204 uint8_t gann_len;
205 uint8_t gann_flags;
206 uint8_t gann_hopcount;
207 uint8_t gann_ttl;
208 uint8_t gann_addr[IEEE80211_ADDR_LEN];
209 uint32_t gann_seq; /* GANN Sequence Number */
210 uint16_t gann_interval; /* GANN Interval */
211 } __packed;
212
213 /* Root (MP) Annoucement */
214 #define IEEE80211_MESHRANN_BASE_SZ (21)
215 struct ieee80211_meshrann_ie {
216 uint8_t rann_ie; /* IEEE80211_ELEMID_MESHRANN */
217 uint8_t rann_len;
218 uint8_t rann_flags;
219 #define IEEE80211_MESHRANN_FLAGS_GATE 0x01 /* Mesh Gate */
220 uint8_t rann_hopcount;
221 uint8_t rann_ttl;
222 uint8_t rann_addr[IEEE80211_ADDR_LEN];
223 uint32_t rann_seq; /* HWMP Sequence Number */
224 uint32_t rann_interval;
225 uint32_t rann_metric;
226 } __packed;
227
228 /* Mesh Path Request */
229 #define IEEE80211_MESHPREQ_BASE_SZ (26)
230 #define IEEE80211_MESHPREQ_BASE_SZ_AE (32)
231 #define IEEE80211_MESHPREQ_TRGT_SZ (11)
232 #define IEEE80211_MESHPREQ_TCNT_OFFSET (27)
233 #define IEEE80211_MESHPREQ_TCNT_OFFSET_AE (33)
234 struct ieee80211_meshpreq_ie {
235 uint8_t preq_ie; /* IEEE80211_ELEMID_MESHPREQ */
236 uint8_t preq_len;
237 uint8_t preq_flags;
238 #define IEEE80211_MESHPREQ_FLAGS_GATE 0x01 /* Mesh Gate */
239 #define IEEE80211_MESHPREQ_FLAGS_AM 0x02 /* 0 = bcast / 1 = ucast */
240 #define IEEE80211_MESHPREQ_FLAGS_PP 0x04 /* Proactive PREP */
241 #define IEEE80211_MESHPREQ_FLAGS_AE 0x40 /* Address Extension */
242 uint8_t preq_hopcount;
243 uint8_t preq_ttl;
244 uint32_t preq_id;
245 uint8_t preq_origaddr[IEEE80211_ADDR_LEN];
246 uint32_t preq_origseq; /* HWMP Sequence Number */
247 /* NB: may have Originator External Address */
248 uint8_t preq_orig_ext_addr[IEEE80211_ADDR_LEN];
249 uint32_t preq_lifetime;
250 uint32_t preq_metric;
251 uint8_t preq_tcount; /* target count */
252 struct {
253 uint8_t target_flags;
254 #define IEEE80211_MESHPREQ_TFLAGS_TO 0x01 /* Target Only */
255 #define IEEE80211_MESHPREQ_TFLAGS_USN 0x04 /* Unknown HWMP seq number */
256 uint8_t target_addr[IEEE80211_ADDR_LEN];
257 uint32_t target_seq; /* HWMP Sequence Number */
258 } __packed preq_targets[1]; /* NB: variable size */
259 } __packed;
260
261 /* Mesh Path Reply */
262 #define IEEE80211_MESHPREP_BASE_SZ (31)
263 #define IEEE80211_MESHPREP_BASE_SZ_AE (37)
264 struct ieee80211_meshprep_ie {
265 uint8_t prep_ie; /* IEEE80211_ELEMID_MESHPREP */
266 uint8_t prep_len;
267 uint8_t prep_flags;
268 #define IEEE80211_MESHPREP_FLAGS_AE 0x40 /* Address Extension */
269 uint8_t prep_hopcount;
270 uint8_t prep_ttl;
271 uint8_t prep_targetaddr[IEEE80211_ADDR_LEN];
272 uint32_t prep_targetseq;
273 /* NB: May have Target External Address */
274 uint8_t prep_target_ext_addr[IEEE80211_ADDR_LEN];
275 uint32_t prep_lifetime;
276 uint32_t prep_metric;
277 uint8_t prep_origaddr[IEEE80211_ADDR_LEN];
278 uint32_t prep_origseq; /* HWMP Sequence Number */
279 } __packed;
280
281 /* Mesh Path Error */
282 #define IEEE80211_MESHPERR_MAXDEST (19)
283 #define IEEE80211_MESHPERR_NDEST_OFFSET (3)
284 #define IEEE80211_MESHPERR_BASE_SZ (2)
285 #define IEEE80211_MESHPERR_DEST_SZ (13)
286 #define IEEE80211_MESHPERR_DEST_SZ_AE (19)
287 struct ieee80211_meshperr_ie {
288 uint8_t perr_ie; /* IEEE80211_ELEMID_MESHPERR */
289 uint8_t perr_len;
290 uint8_t perr_ttl;
291 uint8_t perr_ndests; /* Number of Destinations */
292 struct {
293 uint8_t dest_flags;
294 #define IEEE80211_MESHPERR_DFLAGS_USN 0x01 /* XXX: not part of standard */
295 #define IEEE80211_MESHPERR_DFLAGS_RC 0x02 /* XXX: not part of standard */
296 #define IEEE80211_MESHPERR_FLAGS_AE 0x40 /* Address Extension */
297 uint8_t dest_addr[IEEE80211_ADDR_LEN];
298 uint32_t dest_seq; /* HWMP Sequence Number */
299 /* NB: May have Destination External Address */
300 uint8_t dest_ext_addr[IEEE80211_ADDR_LEN];
301 uint16_t dest_rcode;
302 } __packed perr_dests[1]; /* NB: variable size */
303 } __packed;
304
305 #ifdef notyet
306 /* Mesh Proxy Update */
307 struct ieee80211_meshpu_ie {
308 uint8_t pu_ie; /* IEEE80211_ELEMID_MESHPU */
309 uint8_t pu_len;
310 uint8_t pu_flags;
311 #define IEEE80211_MESHPU_FLAGS_MASK 0x1
312 #define IEEE80211_MESHPU_FLAGS_DEL 0x0
313 #define IEEE80211_MESHPU_FLAGS_ADD 0x1
314 uint8_t pu_seq; /* PU Sequence Number */
315 uint8_t pu_addr[IEEE80211_ADDR_LEN];
316 uint8_t pu_naddr; /* Number of Proxied Addresses */
317 /* NB: proxied address follows */
318 } __packed;
319
320 /* Mesh Proxy Update Confirmation */
321 struct ieee80211_meshpuc_ie {
322 uint8_t puc_ie; /* IEEE80211_ELEMID_MESHPUC */
323 uint8_t puc_len;
324 uint8_t puc_flags;
325 uint8_t puc_seq; /* PU Sequence Number */
326 uint8_t puc_daddr[IEEE80211_ADDR_LEN];
327 } __packed;
328 #endif
329
330 /*
331 * 802.11s Action Frames
332 * XXX: these are wrong, and some of them should be
333 * under MESH category while PROXY is under MULTIHOP category.
334 */
335 #define IEEE80211_ACTION_CAT_INTERWORK 15
336 #define IEEE80211_ACTION_CAT_RESOURCE 16
337 #define IEEE80211_ACTION_CAT_PROXY 17
338
339 /*
340 * Mesh Peering Action codes.
341 */
342 enum {
343 /* 0 reserved */
344 IEEE80211_ACTION_MESHPEERING_OPEN = 1,
345 IEEE80211_ACTION_MESHPEERING_CONFIRM = 2,
346 IEEE80211_ACTION_MESHPEERING_CLOSE = 3,
347 /* 4-255 reserved */
348 };
349
350 /*
351 * Mesh Action code.
352 */
353 enum {
354 IEEE80211_ACTION_MESH_LMETRIC = 0, /* Mesh Link Metric Report */
355 IEEE80211_ACTION_MESH_HWMP = 1, /* HWMP Mesh Path Selection */
356 IEEE80211_ACTION_MESH_GANN = 2, /* Gate Announcement */
357 IEEE80211_ACTION_MESH_CC = 3, /* Congestion Control */
358 IEEE80211_ACTION_MESH_MCCA_SREQ = 4, /* MCCA Setup Request */
359 IEEE80211_ACTION_MESH_MCCA_SREP = 5, /* MCCA Setup Reply */
360 IEEE80211_ACTION_MESH_MCCA_AREQ = 6, /* MCCA Advertisement Req. */
361 IEEE80211_ACTION_MESH_MCCA_ADVER =7, /* MCCA Advertisement */
362 IEEE80211_ACTION_MESH_MCCA_TRDOWN = 8, /* MCCA Teardown */
363 IEEE80211_ACTION_MESH_TBTT_REQ = 9, /* TBTT Adjustment Request */
364 IEEE80211_ACTION_MESH_TBTT_RES = 10, /* TBTT Adjustment Response */
365 /* 11-255 reserved */
366 };
367
368 /*
369 * Different mesh control structures based on the AE
370 * (Address Extension) bits.
371 */
372 struct ieee80211_meshcntl {
373 uint8_t mc_flags; /* Address Extension 00 */
374 uint8_t mc_ttl; /* TTL */
375 uint8_t mc_seq[4]; /* Sequence No. */
376 /* NB: more addresses may follow */
377 } __packed;
378
379 struct ieee80211_meshcntl_ae01 {
380 uint8_t mc_flags; /* Address Extension 01 */
381 uint8_t mc_ttl; /* TTL */
382 uint8_t mc_seq[4]; /* Sequence No. */
383 uint8_t mc_addr4[IEEE80211_ADDR_LEN];
384 } __packed;
385
386 struct ieee80211_meshcntl_ae10 {
387 uint8_t mc_flags; /* Address Extension 10 */
388 uint8_t mc_ttl; /* TTL */
389 uint8_t mc_seq[4]; /* Sequence No. */
390 uint8_t mc_addr5[IEEE80211_ADDR_LEN];
391 uint8_t mc_addr6[IEEE80211_ADDR_LEN];
392 } __packed;
393
394 #define IEEE80211_MESH_AE_MASK 0x03
395 enum {
396 IEEE80211_MESH_AE_00 = 0, /* MC has no AE subfield */
397 IEEE80211_MESH_AE_01 = 1, /* MC contain addr4 */
398 IEEE80211_MESH_AE_10 = 2, /* MC contain addr5 & addr6 */
399 IEEE80211_MESH_AE_11 = 3, /* RESERVED */
400 };
401
402 #ifdef _KERNEL
403 #ifdef MALLOC_DECLARE
404 MALLOC_DECLARE(M_80211_MESH_PREQ);
405 MALLOC_DECLARE(M_80211_MESH_PREP);
406 MALLOC_DECLARE(M_80211_MESH_PERR);
407
408 MALLOC_DECLARE(M_80211_MESH_RT);
409 MALLOC_DECLARE(M_80211_MESH_GT_RT);
410 #endif
411 /*
412 * Basic forwarding information:
413 * o Destination MAC
414 * o Next-hop MAC
415 * o Precursor list (not implemented yet)
416 * o Path timeout
417 * The rest is part of the active Mesh path selection protocol.
418 * XXX: to be moved out later.
419 */
420 struct ieee80211_mesh_route {
421 TAILQ_ENTRY(ieee80211_mesh_route) rt_next;
422 struct ieee80211vap *rt_vap;
423 ieee80211_rte_lock_t rt_lock; /* fine grained route lock */
424 struct callout rt_discovery; /* discovery timeout */
425 int rt_updtime; /* last update time */
426 uint8_t rt_dest[IEEE80211_ADDR_LEN];
427 uint8_t rt_mesh_gate[IEEE80211_ADDR_LEN]; /* meshDA */
428 uint8_t rt_nexthop[IEEE80211_ADDR_LEN];
429 uint32_t rt_metric; /* path metric */
430 uint16_t rt_nhops; /* number of hops */
431 uint16_t rt_flags;
432 #define IEEE80211_MESHRT_FLAGS_DISCOVER 0x01 /* path discovery */
433 #define IEEE80211_MESHRT_FLAGS_VALID 0x02 /* path discovery complete */
434 #define IEEE80211_MESHRT_FLAGS_PROXY 0x04 /* proxy entry */
435 #define IEEE80211_MESHRT_FLAGS_GATE 0x08 /* mesh gate entry */
436 uint32_t rt_lifetime; /* route timeout */
437 uint32_t rt_lastmseq; /* last seq# seen dest */
438 uint32_t rt_ext_seq; /* proxy seq number */
439 void *rt_priv; /* private data */
440 };
441 #define IEEE80211_MESH_ROUTE_PRIV(rt, cast) ((cast *)rt->rt_priv)
442
443 /*
444 * Stored information about known mesh gates.
445 */
446 struct ieee80211_mesh_gate_route {
447 TAILQ_ENTRY(ieee80211_mesh_gate_route) gr_next;
448 uint8_t gr_addr[IEEE80211_ADDR_LEN];
449 uint32_t gr_lastseq;
450 struct ieee80211_mesh_route *gr_route;
451 };
452
453 #define IEEE80211_MESH_PROTO_DSZ 12 /* description size */
454 /*
455 * Mesh Path Selection Protocol.
456 */
457 enum ieee80211_state;
458 struct ieee80211_mesh_proto_path {
459 uint8_t mpp_active;
460 char mpp_descr[IEEE80211_MESH_PROTO_DSZ];
461 uint8_t mpp_ie;
462 struct ieee80211_node *
463 (*mpp_discover)(struct ieee80211vap *,
464 const uint8_t [IEEE80211_ADDR_LEN],
465 struct mbuf *);
466 void (*mpp_peerdown)(struct ieee80211_node *);
467 void (*mpp_senderror)(struct ieee80211vap *,
468 const uint8_t [IEEE80211_ADDR_LEN],
469 struct ieee80211_mesh_route *, int);
470 void (*mpp_vattach)(struct ieee80211vap *);
471 void (*mpp_vdetach)(struct ieee80211vap *);
472 int (*mpp_newstate)(struct ieee80211vap *,
473 enum ieee80211_state, int);
474 const size_t mpp_privlen; /* size required in the routing table
475 for private data */
476 int mpp_inact; /* inact. timeout for invalid routes
477 (ticks) */
478 };
479
480 /*
481 * Mesh Link Metric Report Protocol.
482 */
483 struct ieee80211_mesh_proto_metric {
484 uint8_t mpm_active;
485 char mpm_descr[IEEE80211_MESH_PROTO_DSZ];
486 uint8_t mpm_ie;
487 uint32_t (*mpm_metric)(struct ieee80211_node *);
488 };
489
490 #ifdef notyet
491 /*
492 * Mesh Authentication Protocol.
493 */
494 struct ieee80211_mesh_proto_auth {
495 uint8_t mpa_ie[4];
496 };
497
498 struct ieee80211_mesh_proto_congestion {
499 };
500
501 struct ieee80211_mesh_proto_sync {
502 };
503 #endif
504
505 typedef uint32_t ieee80211_mesh_seq;
506 #define IEEE80211_MESH_SEQ_LEQ(a, b) ((int32_t)((a)-(b)) <= 0)
507 #define IEEE80211_MESH_SEQ_GEQ(a, b) ((int32_t)((a)-(b)) >= 0)
508
509 struct ieee80211_mesh_state {
510 int ms_idlen;
511 uint8_t ms_id[IEEE80211_MESHID_LEN];
512 ieee80211_mesh_seq ms_seq; /* seq no for meshcntl */
513 uint16_t ms_neighbors;
514 uint8_t ms_ttl; /* mesh ttl set in packets */
515 #define IEEE80211_MESHFLAGS_AP 0x01 /* accept peers */
516 #define IEEE80211_MESHFLAGS_GATE 0x02 /* mesh gate role */
517 #define IEEE80211_MESHFLAGS_FWD 0x04 /* forward packets */
518 #define IEEE80211_MESHFLAGS_ROOT 0x08 /* configured as root */
519 uint8_t ms_flags;
520 ieee80211_rt_lock_t ms_rt_lock;
521 struct callout ms_cleantimer;
522 struct callout ms_gatetimer;
523 ieee80211_mesh_seq ms_gateseq;
524 TAILQ_HEAD(, ieee80211_mesh_gate_route) ms_known_gates;
525 TAILQ_HEAD(, ieee80211_mesh_route) ms_routes;
526 struct ieee80211_mesh_proto_metric *ms_pmetric;
527 struct ieee80211_mesh_proto_path *ms_ppath;
528 };
529 void ieee80211_mesh_attach(struct ieee80211com *);
530 void ieee80211_mesh_detach(struct ieee80211com *);
531
532 struct ieee80211_mesh_route *
533 ieee80211_mesh_rt_find(struct ieee80211vap *,
534 const uint8_t [IEEE80211_ADDR_LEN]);
535 struct ieee80211_mesh_route *
536 ieee80211_mesh_rt_add(struct ieee80211vap *,
537 const uint8_t [IEEE80211_ADDR_LEN]);
538 void ieee80211_mesh_rt_del(struct ieee80211vap *,
539 const uint8_t [IEEE80211_ADDR_LEN]);
540 void ieee80211_mesh_rt_flush(struct ieee80211vap *);
541 void ieee80211_mesh_rt_flush_peer(struct ieee80211vap *,
542 const uint8_t [IEEE80211_ADDR_LEN]);
543 int ieee80211_mesh_rt_update(struct ieee80211_mesh_route *rt, int);
544 void ieee80211_mesh_proxy_check(struct ieee80211vap *,
545 const uint8_t [IEEE80211_ADDR_LEN]);
546
547 int ieee80211_mesh_register_proto_path(const
548 struct ieee80211_mesh_proto_path *);
549 int ieee80211_mesh_register_proto_metric(const
550 struct ieee80211_mesh_proto_metric *);
551
552 uint8_t * ieee80211_add_meshid(uint8_t *, struct ieee80211vap *);
553 uint8_t * ieee80211_add_meshconf(uint8_t *, struct ieee80211vap *);
554 uint8_t * ieee80211_add_meshpeer(uint8_t *, uint8_t, uint16_t, uint16_t,
555 uint16_t);
556 uint8_t * ieee80211_add_meshlmetric(uint8_t *, uint8_t, uint32_t);
557 uint8_t * ieee80211_add_meshgate(uint8_t *,
558 struct ieee80211_meshgann_ie *);
559
560 void ieee80211_mesh_node_init(struct ieee80211vap *,
561 struct ieee80211_node *);
562 void ieee80211_mesh_node_cleanup(struct ieee80211_node *);
563 void ieee80211_parse_meshid(struct ieee80211_node *,
564 const uint8_t *);
565 struct ieee80211_scanparams;
566 void ieee80211_mesh_init_neighbor(struct ieee80211_node *,
567 const struct ieee80211_frame *,
568 const struct ieee80211_scanparams *);
569 void ieee80211_mesh_update_beacon(struct ieee80211vap *,
570 struct ieee80211_beacon_offsets *);
571 struct ieee80211_mesh_gate_route *
572 ieee80211_mesh_mark_gate(struct ieee80211vap *,
573 const uint8_t *, struct ieee80211_mesh_route *);
574 void ieee80211_mesh_forward_to_gates(struct ieee80211vap *,
575 struct ieee80211_mesh_route *);
576 struct ieee80211_node *
577 ieee80211_mesh_find_txnode(struct ieee80211vap *,
578 const uint8_t [IEEE80211_ADDR_LEN]);
579
580 /*
581 * Return non-zero if proxy operation is enabled.
582 */
583 static __inline int
ieee80211_mesh_isproxyena(struct ieee80211vap * vap)584 ieee80211_mesh_isproxyena(struct ieee80211vap *vap)
585 {
586 struct ieee80211_mesh_state *ms = vap->iv_mesh;
587 return (ms->ms_flags &
588 (IEEE80211_MESHFLAGS_AP | IEEE80211_MESHFLAGS_GATE)) != 0;
589 }
590
591 /*
592 * Process an outbound frame: if a path is known to the
593 * destination then return a reference to the next hop
594 * for immediate transmission. Otherwise initiate path
595 * discovery and, if possible queue the packet to be
596 * sent when path discovery completes.
597 */
598 static __inline struct ieee80211_node *
ieee80211_mesh_discover(struct ieee80211vap * vap,const uint8_t dest[IEEE80211_ADDR_LEN],struct mbuf * m)599 ieee80211_mesh_discover(struct ieee80211vap *vap,
600 const uint8_t dest[IEEE80211_ADDR_LEN], struct mbuf *m)
601 {
602 struct ieee80211_mesh_state *ms = vap->iv_mesh;
603 return ms->ms_ppath->mpp_discover(vap, dest, m);
604 }
605
606 #endif /* _KERNEL */
607 #endif /* !_NET80211_IEEE80211_MESH_H_ */
608