ieee80211_proto.c revision 1.26 1 /* $NetBSD: ieee80211_proto.c,v 1.26 2006/08/30 15:40:00 christos Exp $ */
2 /*-
3 * Copyright (c) 2001 Atsushi Onoe
4 * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * Alternatively, this software may be distributed under the terms of the
19 * GNU General Public License ("GPL") version 2 as published by the Free
20 * Software Foundation.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34 #include <sys/cdefs.h>
35 #ifdef __FreeBSD__
36 __FBSDID("$FreeBSD: src/sys/net80211/ieee80211_proto.c,v 1.23 2005/08/10 16:22:29 sam Exp $");
37 #endif
38 #ifdef __NetBSD__
39 __KERNEL_RCSID(0, "$NetBSD: ieee80211_proto.c,v 1.26 2006/08/30 15:40:00 christos Exp $");
40 #endif
41
42 /*
43 * IEEE 802.11 protocol support.
44 */
45
46 #include "opt_inet.h"
47
48 #include <sys/param.h>
49 #include <sys/kernel.h>
50 #include <sys/systm.h>
51
52 #include <sys/socket.h>
53 #include <sys/sockio.h>
54 #include <sys/endian.h>
55 #include <sys/errno.h>
56 #include <sys/proc.h>
57 #include <sys/sysctl.h>
58
59 #include <net/if.h>
60 #include <net/if_media.h>
61 #include <net/if_arp.h>
62 #include <net/if_ether.h>
63 #include <net/if_llc.h>
64
65 #include <net80211/ieee80211_netbsd.h>
66 #include <net80211/ieee80211_var.h>
67
68 #include <net/bpf.h>
69
70 #ifdef INET
71 #include <netinet/in.h>
72 #include <net/if_ether.h>
73 #endif
74
75 #include <net/route.h>
76 /* XXX tunables */
77 #define AGGRESSIVE_MODE_SWITCH_HYSTERESIS 3 /* pkts / 100ms */
78 #define HIGH_PRI_SWITCH_THRESH 10 /* pkts / 100ms */
79
80 #define IEEE80211_RATE2MBS(r) (((r) & IEEE80211_RATE_VAL) / 2)
81
82 const char *ieee80211_mgt_subtype_name[] = {
83 "assoc_req", "assoc_resp", "reassoc_req", "reassoc_resp",
84 "probe_req", "probe_resp", "reserved#6", "reserved#7",
85 "beacon", "atim", "disassoc", "auth",
86 "deauth", "reserved#13", "reserved#14", "reserved#15"
87 };
88 const char *ieee80211_ctl_subtype_name[] = {
89 "reserved#0", "reserved#1", "reserved#2", "reserved#3",
90 "reserved#3", "reserved#5", "reserved#6", "reserved#7",
91 "reserved#8", "reserved#9", "ps_poll", "rts",
92 "cts", "ack", "cf_end", "cf_end_ack"
93 };
94 const char *ieee80211_state_name[IEEE80211_S_MAX] = {
95 "INIT", /* IEEE80211_S_INIT */
96 "SCAN", /* IEEE80211_S_SCAN */
97 "AUTH", /* IEEE80211_S_AUTH */
98 "ASSOC", /* IEEE80211_S_ASSOC */
99 "RUN" /* IEEE80211_S_RUN */
100 };
101 const char *ieee80211_wme_acnames[] = {
102 "WME_AC_BE",
103 "WME_AC_BK",
104 "WME_AC_VI",
105 "WME_AC_VO",
106 "WME_UPSD",
107 };
108
109 static int ieee80211_newstate(struct ieee80211com *, enum ieee80211_state, int);
110
111 void
112 ieee80211_proto_attach(struct ieee80211com *ic)
113 {
114 struct ifnet *ifp = ic->ic_ifp;
115
116 /* XXX room for crypto */
117 ifp->if_hdrlen = sizeof(struct ieee80211_qosframe_addr4);
118
119 ic->ic_rtsthreshold = IEEE80211_RTS_DEFAULT;
120 ic->ic_fragthreshold = IEEE80211_FRAG_DEFAULT;
121 ic->ic_fixed_rate = IEEE80211_FIXED_RATE_NONE;
122 ic->ic_bmiss_max = IEEE80211_BMISS_MAX;
123 ic->ic_mcast_rate = IEEE80211_MCAST_RATE_DEFAULT;
124 ic->ic_protmode = IEEE80211_PROT_CTSONLY;
125 ic->ic_roaming = IEEE80211_ROAMING_AUTO;
126
127 ic->ic_wme.wme_hipri_switch_hysteresis =
128 AGGRESSIVE_MODE_SWITCH_HYSTERESIS;
129
130 /* protocol state change handler */
131 ic->ic_newstate = ieee80211_newstate;
132
133 /* initialize management frame handlers */
134 ic->ic_recv_mgmt = ieee80211_recv_mgmt;
135 ic->ic_send_mgmt = ieee80211_send_mgmt;
136 }
137
138 void
139 ieee80211_proto_detach(struct ieee80211com *ic)
140 {
141
142 /*
143 * This should not be needed as we detach when reseting
144 * the state but be conservative here since the
145 * authenticator may do things like spawn kernel threads.
146 */
147 if (ic->ic_auth->ia_detach)
148 ic->ic_auth->ia_detach(ic);
149
150 IF_PURGE(&ic->ic_mgtq);
151
152 /*
153 * Detach any ACL'ator.
154 */
155 if (ic->ic_acl != NULL)
156 ic->ic_acl->iac_detach(ic);
157 }
158
159 /*
160 * Simple-minded authenticator module support.
161 */
162
163 #define IEEE80211_AUTH_MAX (IEEE80211_AUTH_WPA+1)
164 /* XXX well-known names */
165 static const char *auth_modnames[IEEE80211_AUTH_MAX] = {
166 "wlan_internal", /* IEEE80211_AUTH_NONE */
167 "wlan_internal", /* IEEE80211_AUTH_OPEN */
168 "wlan_internal", /* IEEE80211_AUTH_SHARED */
169 "wlan_xauth", /* IEEE80211_AUTH_8021X */
170 "wlan_internal", /* IEEE80211_AUTH_AUTO */
171 "wlan_xauth", /* IEEE80211_AUTH_WPA */
172 };
173 static const struct ieee80211_authenticator *authenticators[IEEE80211_AUTH_MAX];
174
175 static const struct ieee80211_authenticator auth_internal = {
176 .ia_name = "wlan_internal",
177 .ia_attach = NULL,
178 .ia_detach = NULL,
179 .ia_node_join = NULL,
180 .ia_node_leave = NULL,
181 };
182
183 /*
184 * Setup internal authenticators once; they are never unregistered.
185 */
186 static void
187 ieee80211_auth_setup(void)
188 {
189 ieee80211_authenticator_register(IEEE80211_AUTH_OPEN, &auth_internal);
190 ieee80211_authenticator_register(IEEE80211_AUTH_SHARED, &auth_internal);
191 ieee80211_authenticator_register(IEEE80211_AUTH_AUTO, &auth_internal);
192 }
193
194 const struct ieee80211_authenticator *
195 ieee80211_authenticator_get(int auth)
196 {
197 static int initialized = 0;
198 if (!initialized) {
199 ieee80211_auth_setup();
200 initialized = 1;
201 }
202 if (auth >= IEEE80211_AUTH_MAX)
203 return NULL;
204 if (authenticators[auth] == NULL)
205 ieee80211_load_module(auth_modnames[auth]);
206 return authenticators[auth];
207 }
208
209 void
210 ieee80211_authenticator_register(int type,
211 const struct ieee80211_authenticator *auth)
212 {
213 if (type >= IEEE80211_AUTH_MAX)
214 return;
215 authenticators[type] = auth;
216 }
217
218 void
219 ieee80211_authenticator_unregister(int type)
220 {
221
222 if (type >= IEEE80211_AUTH_MAX)
223 return;
224 authenticators[type] = NULL;
225 }
226
227 /*
228 * Very simple-minded ACL module support.
229 */
230 /* XXX just one for now */
231 static const struct ieee80211_aclator *acl = NULL;
232
233 void
234 ieee80211_aclator_register(const struct ieee80211_aclator *iac)
235 {
236 printf("wlan: %s acl policy registered\n", iac->iac_name);
237 acl = iac;
238 }
239
240 void
241 ieee80211_aclator_unregister(const struct ieee80211_aclator *iac)
242 {
243 if (acl == iac)
244 acl = NULL;
245 printf("wlan: %s acl policy unregistered\n", iac->iac_name);
246 }
247
248 const struct ieee80211_aclator *
249 ieee80211_aclator_get(const char *name)
250 {
251 if (acl == NULL)
252 ieee80211_load_module("wlan_acl");
253 return acl != NULL && strcmp(acl->iac_name, name) == 0 ? acl : NULL;
254 }
255
256 void
257 ieee80211_print_essid(const u_int8_t *essid, int len)
258 {
259 const u_int8_t *p;
260 int i;
261
262 if (len > IEEE80211_NWID_LEN)
263 len = IEEE80211_NWID_LEN;
264 /* determine printable or not */
265 for (i = 0, p = essid; i < len; i++, p++) {
266 if (*p < ' ' || *p > 0x7e)
267 break;
268 }
269 if (i == len) {
270 printf("\"");
271 for (i = 0, p = essid; i < len; i++, p++)
272 printf("%c", *p);
273 printf("\"");
274 } else {
275 printf("0x");
276 for (i = 0, p = essid; i < len; i++, p++)
277 printf("%02x", *p);
278 }
279 }
280
281 void
282 ieee80211_dump_pkt(const u_int8_t *buf, int len, int rate, int rssi)
283 {
284 const struct ieee80211_frame *wh;
285 int i;
286
287 wh = (const struct ieee80211_frame *)buf;
288 switch (wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) {
289 case IEEE80211_FC1_DIR_NODS:
290 printf("NODS %s", ether_sprintf(wh->i_addr2));
291 printf("->%s", ether_sprintf(wh->i_addr1));
292 printf("(%s)", ether_sprintf(wh->i_addr3));
293 break;
294 case IEEE80211_FC1_DIR_TODS:
295 printf("TODS %s", ether_sprintf(wh->i_addr2));
296 printf("->%s", ether_sprintf(wh->i_addr3));
297 printf("(%s)", ether_sprintf(wh->i_addr1));
298 break;
299 case IEEE80211_FC1_DIR_FROMDS:
300 printf("FRDS %s", ether_sprintf(wh->i_addr3));
301 printf("->%s", ether_sprintf(wh->i_addr1));
302 printf("(%s)", ether_sprintf(wh->i_addr2));
303 break;
304 case IEEE80211_FC1_DIR_DSTODS:
305 printf("DSDS %s", ether_sprintf((const u_int8_t *)&wh[1]));
306 printf("->%s", ether_sprintf(wh->i_addr3));
307 printf("(%s", ether_sprintf(wh->i_addr2));
308 printf("->%s)", ether_sprintf(wh->i_addr1));
309 break;
310 }
311 switch (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) {
312 case IEEE80211_FC0_TYPE_DATA:
313 printf(" data");
314 break;
315 case IEEE80211_FC0_TYPE_MGT:
316 printf(" %s", ieee80211_mgt_subtype_name[
317 (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK)
318 >> IEEE80211_FC0_SUBTYPE_SHIFT]);
319 break;
320 default:
321 printf(" type#%d", wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK);
322 break;
323 }
324 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
325 printf(" WEP [IV");
326 for (i = 0; i < IEEE80211_WEP_IVLEN; i++)
327 printf(" %.02x", buf[sizeof(*wh)+i]);
328 printf(" KID %u]", buf[sizeof(*wh)+i] >> 6);
329 }
330 if (rate >= 0)
331 printf(" %dM", rate / 2);
332 if (rssi >= 0)
333 printf(" +%d", rssi);
334 printf("\n");
335 if (len > 0) {
336 for (i = 0; i < len; i++) {
337 if ((i & 1) == 0)
338 printf(" ");
339 printf("%02x", buf[i]);
340 }
341 printf("\n");
342 }
343 }
344
345 int
346 ieee80211_fix_rate(struct ieee80211_node *ni, int flags)
347 {
348 #define RV(v) ((v) & IEEE80211_RATE_VAL)
349 struct ieee80211com *ic = ni->ni_ic;
350 int i, j, ignore, error;
351 int okrate, badrate, fixedrate;
352 struct ieee80211_rateset *srs, *nrs;
353 u_int8_t r;
354
355 /*
356 * If the fixed rate check was requested but no
357 * fixed has been defined then just remove it.
358 */
359 if ((flags & IEEE80211_F_DOFRATE) &&
360 ic->ic_fixed_rate == IEEE80211_FIXED_RATE_NONE)
361 flags &= ~IEEE80211_F_DOFRATE;
362 error = 0;
363 okrate = badrate = fixedrate = 0;
364 srs = &ic->ic_sup_rates[ieee80211_chan2mode(ic, ni->ni_chan)];
365 nrs = &ni->ni_rates;
366 for (i = 0; i < nrs->rs_nrates; ) {
367 ignore = 0;
368 if (flags & IEEE80211_F_DOSORT) {
369 /*
370 * Sort rates.
371 */
372 for (j = i + 1; j < nrs->rs_nrates; j++) {
373 if (RV(nrs->rs_rates[i]) > RV(nrs->rs_rates[j])) {
374 r = nrs->rs_rates[i];
375 nrs->rs_rates[i] = nrs->rs_rates[j];
376 nrs->rs_rates[j] = r;
377 }
378 }
379 }
380 r = nrs->rs_rates[i] & IEEE80211_RATE_VAL;
381 badrate = r;
382 if (flags & IEEE80211_F_DOFRATE) {
383 /*
384 * Check any fixed rate is included.
385 */
386 if (r == RV(srs->rs_rates[ic->ic_fixed_rate]))
387 fixedrate = r;
388 }
389 if (flags & IEEE80211_F_DONEGO) {
390 /*
391 * Check against supported rates.
392 */
393 for (j = 0; j < srs->rs_nrates; j++) {
394 if (r == RV(srs->rs_rates[j])) {
395 /*
396 * Overwrite with the supported rate
397 * value so any basic rate bit is set.
398 * This insures that response we send
399 * to stations have the necessary basic
400 * rate bit set.
401 */
402 nrs->rs_rates[i] = srs->rs_rates[j];
403 break;
404 }
405 }
406 if (j == srs->rs_nrates) {
407 /*
408 * A rate in the node's rate set is not
409 * supported. If this is a basic rate and we
410 * are operating as an AP then this is an error.
411 * Otherwise we just discard/ignore the rate.
412 * Note that this is important for 11b stations
413 * when they want to associate with an 11g AP.
414 */
415 #ifndef IEEE80211_NO_HOSTAP
416 if (ic->ic_opmode == IEEE80211_M_HOSTAP &&
417 (nrs->rs_rates[i] & IEEE80211_RATE_BASIC))
418 error++;
419 #endif /* !IEEE80211_NO_HOSTAP */
420 ignore++;
421 }
422 }
423 if (flags & IEEE80211_F_DODEL) {
424 /*
425 * Delete unacceptable rates.
426 */
427 if (ignore) {
428 nrs->rs_nrates--;
429 for (j = i; j < nrs->rs_nrates; j++)
430 nrs->rs_rates[j] = nrs->rs_rates[j + 1];
431 nrs->rs_rates[j] = 0;
432 continue;
433 }
434 }
435 if (!ignore) {
436 okrate = nrs->rs_rates[i];
437 ni->ni_txrate = i;
438 }
439 i++;
440 }
441 if (okrate == 0 || error != 0 ||
442 ((flags & IEEE80211_F_DOFRATE) && fixedrate == 0))
443 return badrate | IEEE80211_RATE_BASIC;
444 else
445 return RV(okrate);
446 #undef RV
447 }
448
449 /*
450 * Reset 11g-related state.
451 */
452 void
453 ieee80211_reset_erp(struct ieee80211com *ic)
454 {
455 ic->ic_flags &= ~IEEE80211_F_USEPROT;
456 ic->ic_nonerpsta = 0;
457 ic->ic_longslotsta = 0;
458 /*
459 * Short slot time is enabled only when operating in 11g
460 * and not in an IBSS. We must also honor whether or not
461 * the driver is capable of doing it.
462 */
463 ieee80211_set_shortslottime(ic,
464 ic->ic_curmode == IEEE80211_MODE_11A ||
465 (ic->ic_curmode == IEEE80211_MODE_11G &&
466 ic->ic_opmode == IEEE80211_M_HOSTAP &&
467 (ic->ic_caps & IEEE80211_C_SHSLOT)));
468 /*
469 * Set short preamble and ERP barker-preamble flags.
470 */
471 if (ic->ic_curmode == IEEE80211_MODE_11A ||
472 (ic->ic_caps & IEEE80211_C_SHPREAMBLE)) {
473 ic->ic_flags |= IEEE80211_F_SHPREAMBLE;
474 ic->ic_flags &= ~IEEE80211_F_USEBARKER;
475 } else {
476 ic->ic_flags &= ~IEEE80211_F_SHPREAMBLE;
477 ic->ic_flags |= IEEE80211_F_USEBARKER;
478 }
479 }
480
481 /*
482 * Set the short slot time state and notify the driver.
483 */
484 void
485 ieee80211_set_shortslottime(struct ieee80211com *ic, int onoff)
486 {
487 if (onoff)
488 ic->ic_flags |= IEEE80211_F_SHSLOT;
489 else
490 ic->ic_flags &= ~IEEE80211_F_SHSLOT;
491 /* notify driver */
492 if (ic->ic_updateslot != NULL)
493 ic->ic_updateslot(ic->ic_ifp);
494 }
495
496 /*
497 * Check if the specified rate set supports ERP.
498 * NB: the rate set is assumed to be sorted.
499 */
500 int
501 ieee80211_iserp_rateset(struct ieee80211com *ic, struct ieee80211_rateset *rs)
502 {
503 #define N(a) (sizeof(a) / sizeof(a[0]))
504 static const int rates[] = { 2, 4, 11, 22, 12, 24, 48 };
505 int i, j;
506
507 if (rs->rs_nrates < N(rates))
508 return 0;
509 for (i = 0; i < N(rates); i++) {
510 for (j = 0; j < rs->rs_nrates; j++) {
511 int r = rs->rs_rates[j] & IEEE80211_RATE_VAL;
512 if (rates[i] == r)
513 goto next;
514 if (r > rates[i])
515 return 0;
516 }
517 return 0;
518 next:
519 ;
520 }
521 return 1;
522 #undef N
523 }
524
525 /*
526 * Mark the basic rates for the 11g rate table based on the
527 * operating mode. For real 11g we mark all the 11b rates
528 * and 6, 12, and 24 OFDM. For 11b compatibility we mark only
529 * 11b rates. There's also a pseudo 11a-mode used to mark only
530 * the basic OFDM rates.
531 */
532 void
533 ieee80211_set11gbasicrates(struct ieee80211_rateset *rs, enum ieee80211_phymode mode)
534 {
535 static const struct ieee80211_rateset basic[] = {
536 { .rs_nrates = 0 }, /* IEEE80211_MODE_AUTO */
537 { 3, { 12, 24, 48 } }, /* IEEE80211_MODE_11A */
538 { 2, { 2, 4 } }, /* IEEE80211_MODE_11B */
539 { 4, { 2, 4, 11, 22 } }, /* IEEE80211_MODE_11G (mixed b/g) */
540 { .rs_nrates = 0 }, /* IEEE80211_MODE_FH */
541 /* IEEE80211_MODE_PUREG (not yet) */
542 { 7, { 2, 4, 11, 22, 12, 24, 48 } },
543 };
544 int i, j;
545
546 for (i = 0; i < rs->rs_nrates; i++) {
547 rs->rs_rates[i] &= IEEE80211_RATE_VAL;
548 for (j = 0; j < basic[mode].rs_nrates; j++)
549 if (basic[mode].rs_rates[j] == rs->rs_rates[i]) {
550 rs->rs_rates[i] |= IEEE80211_RATE_BASIC;
551 break;
552 }
553 }
554 }
555
556 /*
557 * WME protocol support. The following parameters come from the spec.
558 */
559 typedef struct phyParamType {
560 u_int8_t aifsn;
561 u_int8_t logcwmin;
562 u_int8_t logcwmax;
563 u_int16_t txopLimit;
564 u_int8_t acm;
565 } paramType;
566
567 static const struct phyParamType phyParamForAC_BE[IEEE80211_MODE_MAX] = {
568 { 3, 4, 6, 0, 0, }, /* IEEE80211_MODE_AUTO */
569 { 3, 4, 6, 0, 0, }, /* IEEE80211_MODE_11A */
570 { 3, 5, 7, 0, 0, }, /* IEEE80211_MODE_11B */
571 { 3, 4, 6, 0, 0, }, /* IEEE80211_MODE_11G */
572 { 3, 5, 7, 0, 0, }, /* IEEE80211_MODE_FH */
573 { 2, 3, 5, 0, 0, }, /* IEEE80211_MODE_TURBO_A */
574 { 2, 3, 5, 0, 0, }, /* IEEE80211_MODE_TURBO_G */
575 };
576 static const struct phyParamType phyParamForAC_BK[IEEE80211_MODE_MAX] = {
577 { 7, 4, 10, 0, 0, }, /* IEEE80211_MODE_AUTO */
578 { 7, 4, 10, 0, 0, }, /* IEEE80211_MODE_11A */
579 { 7, 5, 10, 0, 0, }, /* IEEE80211_MODE_11B */
580 { 7, 4, 10, 0, 0, }, /* IEEE80211_MODE_11G */
581 { 7, 5, 10, 0, 0, }, /* IEEE80211_MODE_FH */
582 { 7, 3, 10, 0, 0, }, /* IEEE80211_MODE_TURBO_A */
583 { 7, 3, 10, 0, 0, }, /* IEEE80211_MODE_TURBO_G */
584 };
585 static const struct phyParamType phyParamForAC_VI[IEEE80211_MODE_MAX] = {
586 { 1, 3, 4, 94, 0, }, /* IEEE80211_MODE_AUTO */
587 { 1, 3, 4, 94, 0, }, /* IEEE80211_MODE_11A */
588 { 1, 4, 5, 188, 0, }, /* IEEE80211_MODE_11B */
589 { 1, 3, 4, 94, 0, }, /* IEEE80211_MODE_11G */
590 { 1, 4, 5, 188, 0, }, /* IEEE80211_MODE_FH */
591 { 1, 2, 3, 94, 0, }, /* IEEE80211_MODE_TURBO_A */
592 { 1, 2, 3, 94, 0, }, /* IEEE80211_MODE_TURBO_G */
593 };
594 static const struct phyParamType phyParamForAC_VO[IEEE80211_MODE_MAX] = {
595 { 1, 2, 3, 47, 0, }, /* IEEE80211_MODE_AUTO */
596 { 1, 2, 3, 47, 0, }, /* IEEE80211_MODE_11A */
597 { 1, 3, 4, 102, 0, }, /* IEEE80211_MODE_11B */
598 { 1, 2, 3, 47, 0, }, /* IEEE80211_MODE_11G */
599 { 1, 3, 4, 102, 0, }, /* IEEE80211_MODE_FH */
600 { 1, 2, 2, 47, 0, }, /* IEEE80211_MODE_TURBO_A */
601 { 1, 2, 2, 47, 0, }, /* IEEE80211_MODE_TURBO_G */
602 };
603
604 static const struct phyParamType bssPhyParamForAC_BE[IEEE80211_MODE_MAX] = {
605 { 3, 4, 10, 0, 0, }, /* IEEE80211_MODE_AUTO */
606 { 3, 4, 10, 0, 0, }, /* IEEE80211_MODE_11A */
607 { 3, 5, 10, 0, 0, }, /* IEEE80211_MODE_11B */
608 { 3, 4, 10, 0, 0, }, /* IEEE80211_MODE_11G */
609 { 3, 5, 10, 0, 0, }, /* IEEE80211_MODE_FH */
610 { 2, 3, 10, 0, 0, }, /* IEEE80211_MODE_TURBO_A */
611 { 2, 3, 10, 0, 0, }, /* IEEE80211_MODE_TURBO_G */
612 };
613 static const struct phyParamType bssPhyParamForAC_VI[IEEE80211_MODE_MAX] = {
614 { 2, 3, 4, 94, 0, }, /* IEEE80211_MODE_AUTO */
615 { 2, 3, 4, 94, 0, }, /* IEEE80211_MODE_11A */
616 { 2, 4, 5, 188, 0, }, /* IEEE80211_MODE_11B */
617 { 2, 3, 4, 94, 0, }, /* IEEE80211_MODE_11G */
618 { 2, 4, 5, 188, 0, }, /* IEEE80211_MODE_FH */
619 { 2, 2, 3, 94, 0, }, /* IEEE80211_MODE_TURBO_A */
620 { 2, 2, 3, 94, 0, }, /* IEEE80211_MODE_TURBO_G */
621 };
622 static const struct phyParamType bssPhyParamForAC_VO[IEEE80211_MODE_MAX] = {
623 { 2, 2, 3, 47, 0, }, /* IEEE80211_MODE_AUTO */
624 { 2, 2, 3, 47, 0, }, /* IEEE80211_MODE_11A */
625 { 2, 3, 4, 102, 0, }, /* IEEE80211_MODE_11B */
626 { 2, 2, 3, 47, 0, }, /* IEEE80211_MODE_11G */
627 { 2, 3, 4, 102, 0, }, /* IEEE80211_MODE_FH */
628 { 1, 2, 2, 47, 0, }, /* IEEE80211_MODE_TURBO_A */
629 { 1, 2, 2, 47, 0, }, /* IEEE80211_MODE_TURBO_G */
630 };
631
632 void
633 ieee80211_wme_initparams(struct ieee80211com *ic)
634 {
635 struct ieee80211_wme_state *wme = &ic->ic_wme;
636 const paramType *pPhyParam, *pBssPhyParam;
637 struct wmeParams *wmep;
638 int i;
639
640 if ((ic->ic_caps & IEEE80211_C_WME) == 0)
641 return;
642
643 for (i = 0; i < WME_NUM_AC; i++) {
644 switch (i) {
645 case WME_AC_BK:
646 pPhyParam = &phyParamForAC_BK[ic->ic_curmode];
647 pBssPhyParam = &phyParamForAC_BK[ic->ic_curmode];
648 break;
649 case WME_AC_VI:
650 pPhyParam = &phyParamForAC_VI[ic->ic_curmode];
651 pBssPhyParam = &bssPhyParamForAC_VI[ic->ic_curmode];
652 break;
653 case WME_AC_VO:
654 pPhyParam = &phyParamForAC_VO[ic->ic_curmode];
655 pBssPhyParam = &bssPhyParamForAC_VO[ic->ic_curmode];
656 break;
657 case WME_AC_BE:
658 default:
659 pPhyParam = &phyParamForAC_BE[ic->ic_curmode];
660 pBssPhyParam = &bssPhyParamForAC_BE[ic->ic_curmode];
661 break;
662 }
663
664 wmep = &wme->wme_wmeChanParams.cap_wmeParams[i];
665 if (ic->ic_opmode == IEEE80211_M_HOSTAP) {
666 wmep->wmep_acm = pPhyParam->acm;
667 wmep->wmep_aifsn = pPhyParam->aifsn;
668 wmep->wmep_logcwmin = pPhyParam->logcwmin;
669 wmep->wmep_logcwmax = pPhyParam->logcwmax;
670 wmep->wmep_txopLimit = pPhyParam->txopLimit;
671 } else {
672 wmep->wmep_acm = pBssPhyParam->acm;
673 wmep->wmep_aifsn = pBssPhyParam->aifsn;
674 wmep->wmep_logcwmin = pBssPhyParam->logcwmin;
675 wmep->wmep_logcwmax = pBssPhyParam->logcwmax;
676 wmep->wmep_txopLimit = pBssPhyParam->txopLimit;
677
678 }
679 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME,
680 "%s: %s chan [acm %u aifsn %u log2(cwmin) %u "
681 "log2(cwmax) %u txpoLimit %u]\n", __func__
682 , ieee80211_wme_acnames[i]
683 , wmep->wmep_acm
684 , wmep->wmep_aifsn
685 , wmep->wmep_logcwmin
686 , wmep->wmep_logcwmax
687 , wmep->wmep_txopLimit
688 );
689
690 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[i];
691 wmep->wmep_acm = pBssPhyParam->acm;
692 wmep->wmep_aifsn = pBssPhyParam->aifsn;
693 wmep->wmep_logcwmin = pBssPhyParam->logcwmin;
694 wmep->wmep_logcwmax = pBssPhyParam->logcwmax;
695 wmep->wmep_txopLimit = pBssPhyParam->txopLimit;
696 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME,
697 "%s: %s bss [acm %u aifsn %u log2(cwmin) %u "
698 "log2(cwmax) %u txpoLimit %u]\n", __func__
699 , ieee80211_wme_acnames[i]
700 , wmep->wmep_acm
701 , wmep->wmep_aifsn
702 , wmep->wmep_logcwmin
703 , wmep->wmep_logcwmax
704 , wmep->wmep_txopLimit
705 );
706 }
707 /* NB: check ic_bss to avoid NULL deref on initial attach */
708 if (ic->ic_bss != NULL) {
709 /*
710 * Calculate agressive mode switching threshold based
711 * on beacon interval. This doesn't need locking since
712 * we're only called before entering the RUN state at
713 * which point we start sending beacon frames.
714 */
715 wme->wme_hipri_switch_thresh =
716 (HIGH_PRI_SWITCH_THRESH * ic->ic_bss->ni_intval) / 100;
717 ieee80211_wme_updateparams(ic);
718 }
719 }
720
721 /*
722 * Update WME parameters for ourself and the BSS.
723 */
724 void
725 ieee80211_wme_updateparams_locked(struct ieee80211com *ic)
726 {
727 static const paramType phyParam[IEEE80211_MODE_MAX] = {
728 { 2, 4, 10, 64, 0, }, /* IEEE80211_MODE_AUTO */
729 { 2, 4, 10, 64, 0, }, /* IEEE80211_MODE_11A */
730 { 2, 5, 10, 64, 0, }, /* IEEE80211_MODE_11B */
731 { 2, 4, 10, 64, 0, }, /* IEEE80211_MODE_11G */
732 { 2, 5, 10, 64, 0, }, /* IEEE80211_MODE_FH */
733 { 1, 3, 10, 64, 0, }, /* IEEE80211_MODE_TURBO_A */
734 { 1, 3, 10, 64, 0, }, /* IEEE80211_MODE_TURBO_G */
735 };
736 struct ieee80211_wme_state *wme = &ic->ic_wme;
737 const struct wmeParams *wmep;
738 struct wmeParams *chanp, *bssp;
739 int i;
740
741 /* set up the channel access parameters for the physical device */
742 for (i = 0; i < WME_NUM_AC; i++) {
743 chanp = &wme->wme_chanParams.cap_wmeParams[i];
744 wmep = &wme->wme_wmeChanParams.cap_wmeParams[i];
745 chanp->wmep_aifsn = wmep->wmep_aifsn;
746 chanp->wmep_logcwmin = wmep->wmep_logcwmin;
747 chanp->wmep_logcwmax = wmep->wmep_logcwmax;
748 chanp->wmep_txopLimit = wmep->wmep_txopLimit;
749
750 chanp = &wme->wme_bssChanParams.cap_wmeParams[i];
751 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[i];
752 chanp->wmep_aifsn = wmep->wmep_aifsn;
753 chanp->wmep_logcwmin = wmep->wmep_logcwmin;
754 chanp->wmep_logcwmax = wmep->wmep_logcwmax;
755 chanp->wmep_txopLimit = wmep->wmep_txopLimit;
756 }
757
758 /*
759 * This implements agressive mode as found in certain
760 * vendors' AP's. When there is significant high
761 * priority (VI/VO) traffic in the BSS throttle back BE
762 * traffic by using conservative parameters. Otherwise
763 * BE uses agressive params to optimize performance of
764 * legacy/non-QoS traffic.
765 */
766 if ((ic->ic_opmode == IEEE80211_M_HOSTAP &&
767 (wme->wme_flags & WME_F_AGGRMODE) == 0) ||
768 (ic->ic_opmode != IEEE80211_M_HOSTAP &&
769 (ic->ic_bss->ni_flags & IEEE80211_NODE_QOS) == 0) ||
770 (ic->ic_flags & IEEE80211_F_WME) == 0) {
771 chanp = &wme->wme_chanParams.cap_wmeParams[WME_AC_BE];
772 bssp = &wme->wme_bssChanParams.cap_wmeParams[WME_AC_BE];
773
774 chanp->wmep_aifsn = bssp->wmep_aifsn =
775 phyParam[ic->ic_curmode].aifsn;
776 chanp->wmep_logcwmin = bssp->wmep_logcwmin =
777 phyParam[ic->ic_curmode].logcwmin;
778 chanp->wmep_logcwmax = bssp->wmep_logcwmax =
779 phyParam[ic->ic_curmode].logcwmax;
780 chanp->wmep_txopLimit = bssp->wmep_txopLimit =
781 (ic->ic_caps & IEEE80211_C_BURST) ?
782 phyParam[ic->ic_curmode].txopLimit : 0;
783 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME,
784 "%s: %s [acm %u aifsn %u log2(cwmin) %u "
785 "log2(cwmax) %u txpoLimit %u]\n", __func__
786 , ieee80211_wme_acnames[WME_AC_BE]
787 , chanp->wmep_acm
788 , chanp->wmep_aifsn
789 , chanp->wmep_logcwmin
790 , chanp->wmep_logcwmax
791 , chanp->wmep_txopLimit
792 );
793 }
794
795 #ifndef IEEE80211_NO_HOSTAP
796 if (ic->ic_opmode == IEEE80211_M_HOSTAP &&
797 ic->ic_sta_assoc < 2 && (wme->wme_flags & WME_F_AGGRMODE) == 0) {
798 static const u_int8_t logCwMin[IEEE80211_MODE_MAX] = {
799 3, /* IEEE80211_MODE_AUTO */
800 3, /* IEEE80211_MODE_11A */
801 4, /* IEEE80211_MODE_11B */
802 3, /* IEEE80211_MODE_11G */
803 4, /* IEEE80211_MODE_FH */
804 3, /* IEEE80211_MODE_TURBO_A */
805 3, /* IEEE80211_MODE_TURBO_G */
806 };
807 chanp = &wme->wme_chanParams.cap_wmeParams[WME_AC_BE];
808 bssp = &wme->wme_bssChanParams.cap_wmeParams[WME_AC_BE];
809
810 chanp->wmep_logcwmin = bssp->wmep_logcwmin =
811 logCwMin[ic->ic_curmode];
812 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME,
813 "%s: %s log2(cwmin) %u\n", __func__
814 , ieee80211_wme_acnames[WME_AC_BE]
815 , chanp->wmep_logcwmin
816 );
817 }
818 if (ic->ic_opmode == IEEE80211_M_HOSTAP) { /* XXX ibss? */
819 /*
820 * Arrange for a beacon update and bump the parameter
821 * set number so associated stations load the new values.
822 */
823 wme->wme_bssChanParams.cap_info =
824 (wme->wme_bssChanParams.cap_info+1) & WME_QOSINFO_COUNT;
825 ic->ic_flags |= IEEE80211_F_WMEUPDATE;
826 }
827 #endif /* !IEEE80211_NO_HOSTAP */
828
829 wme->wme_update(ic);
830
831 IEEE80211_DPRINTF(ic, IEEE80211_MSG_WME,
832 "%s: WME params updated, cap_info 0x%x\n", __func__,
833 ic->ic_opmode == IEEE80211_M_STA ?
834 wme->wme_wmeChanParams.cap_info :
835 wme->wme_bssChanParams.cap_info);
836 }
837
838 void
839 ieee80211_wme_updateparams(struct ieee80211com *ic)
840 {
841
842 if (ic->ic_caps & IEEE80211_C_WME) {
843 IEEE80211_BEACON_LOCK(ic);
844 ieee80211_wme_updateparams_locked(ic);
845 IEEE80211_BEACON_UNLOCK(ic);
846 }
847 }
848
849 #ifndef IEEE80211_NO_HOSTAP
850 static void
851 sta_disassoc(void *arg, struct ieee80211_node *ni)
852 {
853 struct ieee80211com *ic = arg;
854
855 if (ni->ni_associd != 0) {
856 IEEE80211_SEND_MGMT(ic, ni, IEEE80211_FC0_SUBTYPE_DISASSOC,
857 IEEE80211_REASON_ASSOC_LEAVE);
858 ieee80211_node_leave(ic, ni);
859 }
860 }
861 #endif /* !IEEE80211_NO_HOSTAP */
862
863 void
864 ieee80211_beacon_miss(struct ieee80211com *ic)
865 {
866
867 if (ic->ic_flags & IEEE80211_F_SCAN) {
868 /* XXX check ic_curchan != ic_bsschan? */
869 return;
870 }
871 IEEE80211_DPRINTF(ic,
872 IEEE80211_MSG_STATE | IEEE80211_MSG_DEBUG,
873 "%s\n", "beacon miss");
874
875 /*
876 * Our handling is only meaningful for stations that are
877 * associated; any other conditions else will be handled
878 * through different means (e.g. the tx timeout on mgt frames).
879 */
880 if (ic->ic_opmode != IEEE80211_M_STA || ic->ic_state != IEEE80211_S_RUN)
881 return;
882
883 if (++ic->ic_bmiss_count < ic->ic_bmiss_max) {
884 /*
885 * Send a directed probe req before falling back to a scan;
886 * if we receive a response ic_bmiss_count will be reset.
887 * Some cards mistakenly report beacon miss so this avoids
888 * the expensive scan if the ap is still there.
889 */
890 ieee80211_send_probereq(ic->ic_bss, ic->ic_myaddr,
891 ic->ic_bss->ni_bssid, ic->ic_bss->ni_bssid,
892 ic->ic_bss->ni_essid, ic->ic_bss->ni_esslen,
893 ic->ic_opt_ie, ic->ic_opt_ie_len);
894 return;
895 }
896 ic->ic_bmiss_count = 0;
897 ieee80211_new_state(ic, IEEE80211_S_SCAN, 0);
898 }
899
900 #ifndef IEEE80211_NO_HOSTAP
901 static void
902 sta_deauth(void *arg, struct ieee80211_node *ni)
903 {
904 struct ieee80211com *ic = arg;
905
906 IEEE80211_SEND_MGMT(ic, ni, IEEE80211_FC0_SUBTYPE_DEAUTH,
907 IEEE80211_REASON_ASSOC_LEAVE);
908 }
909 #endif /* !IEEE80211_NO_HOSTAP */
910
911 static int
912 ieee80211_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg)
913 {
914 struct ifnet *ifp = ic->ic_ifp;
915 struct ieee80211_node *ni;
916 enum ieee80211_state ostate;
917
918 ostate = ic->ic_state;
919 IEEE80211_DPRINTF(ic, IEEE80211_MSG_STATE, "%s: %s -> %s\n", __func__,
920 ieee80211_state_name[ostate], ieee80211_state_name[nstate]);
921 ic->ic_state = nstate; /* state transition */
922 ni = ic->ic_bss; /* NB: no reference held */
923 switch (nstate) {
924 case IEEE80211_S_INIT:
925 switch (ostate) {
926 case IEEE80211_S_INIT:
927 break;
928 case IEEE80211_S_RUN:
929 switch (ic->ic_opmode) {
930 case IEEE80211_M_STA:
931 IEEE80211_SEND_MGMT(ic, ni,
932 IEEE80211_FC0_SUBTYPE_DISASSOC,
933 IEEE80211_REASON_ASSOC_LEAVE);
934 ieee80211_sta_leave(ic, ni);
935 break;
936 case IEEE80211_M_HOSTAP:
937 #ifndef IEEE80211_NO_HOSTAP
938 ieee80211_iterate_nodes(&ic->ic_sta,
939 sta_disassoc, ic);
940 #endif /* !IEEE80211_NO_HOSTAP */
941 break;
942 default:
943 break;
944 }
945 goto reset;
946 case IEEE80211_S_ASSOC:
947 switch (ic->ic_opmode) {
948 case IEEE80211_M_STA:
949 IEEE80211_SEND_MGMT(ic, ni,
950 IEEE80211_FC0_SUBTYPE_DEAUTH,
951 IEEE80211_REASON_AUTH_LEAVE);
952 break;
953 case IEEE80211_M_HOSTAP:
954 #ifndef IEEE80211_NO_HOSTAP
955 ieee80211_iterate_nodes(&ic->ic_sta,
956 sta_deauth, ic);
957 #endif /* !IEEE80211_NO_HOSTAP */
958 break;
959 default:
960 break;
961 }
962 goto reset;
963 case IEEE80211_S_SCAN:
964 ieee80211_cancel_scan(ic);
965 goto reset;
966 case IEEE80211_S_AUTH:
967 reset:
968 ic->ic_mgt_timer = 0;
969 IF_PURGE(&ic->ic_mgtq);
970 ieee80211_reset_bss(ic);
971 break;
972 }
973 if (ic->ic_auth->ia_detach != NULL)
974 ic->ic_auth->ia_detach(ic);
975 break;
976 case IEEE80211_S_SCAN:
977 switch (ostate) {
978 case IEEE80211_S_INIT:
979 if ((ic->ic_opmode == IEEE80211_M_HOSTAP ||
980 ic->ic_opmode == IEEE80211_M_IBSS ||
981 ic->ic_opmode == IEEE80211_M_AHDEMO) &&
982 ic->ic_des_chan != IEEE80211_CHAN_ANYC) {
983 /*
984 * AP operation and we already have a channel;
985 * bypass the scan and startup immediately.
986 */
987 ieee80211_create_ibss(ic, ic->ic_des_chan);
988 } else {
989 ieee80211_begin_scan(ic, arg);
990 }
991 break;
992 case IEEE80211_S_SCAN:
993 /*
994 * Scan next. If doing an active scan probe
995 * for the requested ap (if any).
996 */
997 if (ic->ic_flags & IEEE80211_F_ASCAN)
998 ieee80211_probe_curchan(ic, 0);
999 break;
1000 case IEEE80211_S_RUN:
1001 /* beacon miss */
1002 IEEE80211_DPRINTF(ic, IEEE80211_MSG_STATE,
1003 "no recent beacons from %s; rescanning\n",
1004 ether_sprintf(ic->ic_bss->ni_bssid));
1005 ieee80211_sta_leave(ic, ni);
1006 ic->ic_flags &= ~IEEE80211_F_SIBSS; /* XXX */
1007 /* FALLTHRU */
1008 case IEEE80211_S_AUTH:
1009 case IEEE80211_S_ASSOC:
1010 /* timeout restart scan */
1011 ni = ieee80211_find_node(&ic->ic_scan,
1012 ic->ic_bss->ni_macaddr);
1013 if (ni != NULL) {
1014 ni->ni_fails++;
1015 ieee80211_unref_node(&ni);
1016 }
1017 if (ic->ic_roaming == IEEE80211_ROAMING_AUTO)
1018 ieee80211_begin_scan(ic, arg);
1019 break;
1020 }
1021 break;
1022 case IEEE80211_S_AUTH:
1023 switch (ostate) {
1024 case IEEE80211_S_INIT:
1025 case IEEE80211_S_SCAN:
1026 IEEE80211_SEND_MGMT(ic, ni,
1027 IEEE80211_FC0_SUBTYPE_AUTH, 1);
1028 break;
1029 case IEEE80211_S_AUTH:
1030 case IEEE80211_S_ASSOC:
1031 switch (arg) {
1032 case IEEE80211_FC0_SUBTYPE_AUTH:
1033 /* ??? */
1034 IEEE80211_SEND_MGMT(ic, ni,
1035 IEEE80211_FC0_SUBTYPE_AUTH, 2);
1036 break;
1037 case IEEE80211_FC0_SUBTYPE_DEAUTH:
1038 /* ignore and retry scan on timeout */
1039 break;
1040 }
1041 break;
1042 case IEEE80211_S_RUN:
1043 switch (arg) {
1044 case IEEE80211_FC0_SUBTYPE_AUTH:
1045 IEEE80211_SEND_MGMT(ic, ni,
1046 IEEE80211_FC0_SUBTYPE_AUTH, 2);
1047 ic->ic_state = ostate; /* stay RUN */
1048 break;
1049 case IEEE80211_FC0_SUBTYPE_DEAUTH:
1050 ieee80211_sta_leave(ic, ni);
1051 if (ic->ic_roaming == IEEE80211_ROAMING_AUTO) {
1052 /* try to reauth */
1053 IEEE80211_SEND_MGMT(ic, ni,
1054 IEEE80211_FC0_SUBTYPE_AUTH, 1);
1055 }
1056 break;
1057 }
1058 break;
1059 }
1060 break;
1061 case IEEE80211_S_ASSOC:
1062 switch (ostate) {
1063 case IEEE80211_S_INIT:
1064 case IEEE80211_S_SCAN:
1065 case IEEE80211_S_ASSOC:
1066 IEEE80211_DPRINTF(ic, IEEE80211_MSG_ANY,
1067 "%s: invalid transition\n", __func__);
1068 break;
1069 case IEEE80211_S_AUTH:
1070 IEEE80211_SEND_MGMT(ic, ni,
1071 IEEE80211_FC0_SUBTYPE_ASSOC_REQ, 0);
1072 break;
1073 case IEEE80211_S_RUN:
1074 ieee80211_sta_leave(ic, ni);
1075 if (ic->ic_roaming == IEEE80211_ROAMING_AUTO) {
1076 IEEE80211_SEND_MGMT(ic, ni,
1077 IEEE80211_FC0_SUBTYPE_ASSOC_REQ, 1);
1078 }
1079 break;
1080 }
1081 break;
1082 case IEEE80211_S_RUN:
1083 if (ic->ic_flags & IEEE80211_F_WPA) {
1084 /* XXX validate prerequisites */
1085 }
1086 switch (ostate) {
1087 case IEEE80211_S_INIT:
1088 if (ic->ic_opmode == IEEE80211_M_MONITOR)
1089 break;
1090 /* fall thru... */
1091 case IEEE80211_S_AUTH:
1092 IEEE80211_DPRINTF(ic, IEEE80211_MSG_ANY,
1093 "%s: invalid transition\n", __func__);
1094 /* fall thru... */
1095 case IEEE80211_S_RUN:
1096 break;
1097 case IEEE80211_S_SCAN: /* adhoc/hostap mode */
1098 case IEEE80211_S_ASSOC: /* infra mode */
1099 IASSERT(ni->ni_txrate < ni->ni_rates.rs_nrates,
1100 ("%s: bogus xmit rate %u setup\n", __func__,
1101 ni->ni_txrate));
1102 #ifdef IEEE80211_DEBUG
1103 if (ieee80211_msg_debug(ic)) {
1104 if (ic->ic_opmode == IEEE80211_M_STA)
1105 if_printf(ifp, "associated ");
1106 else
1107 if_printf(ifp, "synchronized ");
1108 printf("with %s ssid ",
1109 ether_sprintf(ni->ni_bssid));
1110 ieee80211_print_essid(ic->ic_bss->ni_essid,
1111 ni->ni_esslen);
1112 printf(" channel %d start %uMb\n",
1113 ieee80211_chan2ieee(ic, ic->ic_curchan),
1114 IEEE80211_RATE2MBS(ni->ni_rates.rs_rates[ni->ni_txrate]));
1115 }
1116 #endif
1117 ic->ic_mgt_timer = 0;
1118 if (ic->ic_opmode == IEEE80211_M_STA)
1119 ieee80211_notify_node_join(ic, ni,
1120 arg == IEEE80211_FC0_SUBTYPE_ASSOC_RESP);
1121 (*ifp->if_start)(ifp); /* XXX not authorized yet */
1122 break;
1123 }
1124 /*
1125 * Start/stop the authenticator when operating as an
1126 * AP. We delay until here to allow configuration to
1127 * happen out of order.
1128 */
1129 if (ic->ic_opmode == IEEE80211_M_HOSTAP && /* XXX IBSS/AHDEMO */
1130 ic->ic_auth->ia_attach != NULL) {
1131 /* XXX check failure */
1132 ic->ic_auth->ia_attach(ic);
1133 } else if (ic->ic_auth->ia_detach != NULL) {
1134 ic->ic_auth->ia_detach(ic);
1135 }
1136 /*
1137 * When 802.1x is not in use mark the port authorized
1138 * at this point so traffic can flow.
1139 */
1140 if (ni->ni_authmode != IEEE80211_AUTH_8021X)
1141 ieee80211_node_authorize(ni);
1142 /*
1143 * Enable inactivity processing.
1144 * XXX
1145 */
1146 ic->ic_scan.nt_inact_timer = IEEE80211_INACT_WAIT;
1147 ic->ic_sta.nt_inact_timer = IEEE80211_INACT_WAIT;
1148 break;
1149 }
1150 return 0;
1151 }
1152