xref: /freebsd/sbin/ifconfig/ifieee80211.c (revision 262e143bd46171a6415a5b28af260a5efa2a3db8)
1 /*
2  * Copyright 2001 The Aerospace Corporation.  All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  * 3. The name of The Aerospace Corporation may not be used to endorse or
13  *    promote products derived from this software.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AEROSPACE CORPORATION ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AEROSPACE CORPORATION BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  *
27  * $FreeBSD$
28  */
29 
30 /*-
31  * Copyright (c) 1997, 1998, 2000 The NetBSD Foundation, Inc.
32  * All rights reserved.
33  *
34  * This code is derived from software contributed to The NetBSD Foundation
35  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
36  * NASA Ames Research Center.
37  *
38  * Redistribution and use in source and binary forms, with or without
39  * modification, are permitted provided that the following conditions
40  * are met:
41  * 1. Redistributions of source code must retain the above copyright
42  *    notice, this list of conditions and the following disclaimer.
43  * 2. Redistributions in binary form must reproduce the above copyright
44  *    notice, this list of conditions and the following disclaimer in the
45  *    documentation and/or other materials provided with the distribution.
46  * 3. All advertising materials mentioning features or use of this software
47  *    must display the following acknowledgement:
48  *	This product includes software developed by the NetBSD
49  *	Foundation, Inc. and its contributors.
50  * 4. Neither the name of The NetBSD Foundation nor the names of its
51  *    contributors may be used to endorse or promote products derived
52  *    from this software without specific prior written permission.
53  *
54  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
55  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
56  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
57  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
58  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
59  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
60  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
61  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
62  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
63  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
64  * POSSIBILITY OF SUCH DAMAGE.
65  */
66 
67 #include <sys/param.h>
68 #include <sys/ioctl.h>
69 #include <sys/socket.h>
70 #include <sys/sysctl.h>
71 #include <sys/time.h>
72 
73 #include <net/ethernet.h>
74 #include <net/if.h>
75 #include <net/if_dl.h>
76 #include <net/if_types.h>
77 #include <net/if_media.h>
78 #include <net/route.h>
79 
80 #include <net80211/ieee80211.h>
81 #include <net80211/ieee80211_crypto.h>
82 #include <net80211/ieee80211_ioctl.h>
83 
84 #include <ctype.h>
85 #include <err.h>
86 #include <errno.h>
87 #include <fcntl.h>
88 #include <inttypes.h>
89 #include <stdio.h>
90 #include <stdlib.h>
91 #include <string.h>
92 #include <unistd.h>
93 
94 #include "ifconfig.h"
95 
96 static void set80211(int s, int type, int val, int len, u_int8_t *data);
97 static const char *get_string(const char *val, const char *sep,
98     u_int8_t *buf, int *lenp);
99 static void print_string(const u_int8_t *buf, int len);
100 
101 static int
102 isanyarg(const char *arg)
103 {
104 	return (strcmp(arg, "-") == 0 ||
105 	    strcasecmp(arg, "any") == 0 || strcasecmp(arg, "off") == 0);
106 }
107 
108 static void
109 set80211ssid(const char *val, int d, int s, const struct afswtch *rafp)
110 {
111 	int		ssid;
112 	int		len;
113 	u_int8_t	data[IEEE80211_NWID_LEN];
114 
115 	ssid = 0;
116 	len = strlen(val);
117 	if (len > 2 && isdigit(val[0]) && val[1] == ':') {
118 		ssid = atoi(val)-1;
119 		val += 2;
120 	}
121 
122 	bzero(data, sizeof(data));
123 	len = sizeof(data);
124 	if (get_string(val, NULL, data, &len) == NULL)
125 		exit(1);
126 
127 	set80211(s, IEEE80211_IOC_SSID, ssid, len, data);
128 }
129 
130 static void
131 set80211stationname(const char *val, int d, int s, const struct afswtch *rafp)
132 {
133 	int			len;
134 	u_int8_t		data[33];
135 
136 	bzero(data, sizeof(data));
137 	len = sizeof(data);
138 	get_string(val, NULL, data, &len);
139 
140 	set80211(s, IEEE80211_IOC_STATIONNAME, 0, len, data);
141 }
142 
143 /*
144  * Convert IEEE channel number to MHz frequency.
145  */
146 static u_int
147 ieee80211_ieee2mhz(u_int chan)
148 {
149 	if (chan == 14)
150 		return 2484;
151 	if (chan < 14)			/* 0-13 */
152 		return 2407 + chan*5;
153 	if (chan < 27)			/* 15-26 */
154 		return 2512 + ((chan-15)*20);
155 	return 5000 + (chan*5);
156 }
157 
158 /*
159  * Convert MHz frequency to IEEE channel number.
160  */
161 static u_int
162 ieee80211_mhz2ieee(u_int freq)
163 {
164 	if (freq == 2484)
165 		return 14;
166 	if (freq < 2484)
167 		return (freq - 2407) / 5;
168 	if (freq < 5000)
169 		return 15 + ((freq - 2512) / 20);
170 	return (freq - 5000) / 5;
171 }
172 
173 static void
174 set80211channel(const char *val, int d, int s, const struct afswtch *rafp)
175 {
176 	if (!isanyarg(val)) {
177 		int v = atoi(val);
178 		if (v > 255)		/* treat as frequency */
179 			v = ieee80211_mhz2ieee(v);
180 		set80211(s, IEEE80211_IOC_CHANNEL, v, 0, NULL);
181 	} else
182 		set80211(s, IEEE80211_IOC_CHANNEL, IEEE80211_CHAN_ANY, 0, NULL);
183 }
184 
185 static void
186 set80211authmode(const char *val, int d, int s, const struct afswtch *rafp)
187 {
188 	int	mode;
189 
190 	if (strcasecmp(val, "none") == 0) {
191 		mode = IEEE80211_AUTH_NONE;
192 	} else if (strcasecmp(val, "open") == 0) {
193 		mode = IEEE80211_AUTH_OPEN;
194 	} else if (strcasecmp(val, "shared") == 0) {
195 		mode = IEEE80211_AUTH_SHARED;
196 	} else if (strcasecmp(val, "8021x") == 0) {
197 		mode = IEEE80211_AUTH_8021X;
198 	} else if (strcasecmp(val, "wpa") == 0) {
199 		mode = IEEE80211_AUTH_WPA;
200 	} else {
201 		errx(1, "unknown authmode");
202 	}
203 
204 	set80211(s, IEEE80211_IOC_AUTHMODE, mode, 0, NULL);
205 }
206 
207 static void
208 set80211powersavemode(const char *val, int d, int s, const struct afswtch *rafp)
209 {
210 	int	mode;
211 
212 	if (strcasecmp(val, "off") == 0) {
213 		mode = IEEE80211_POWERSAVE_OFF;
214 	} else if (strcasecmp(val, "on") == 0) {
215 		mode = IEEE80211_POWERSAVE_ON;
216 	} else if (strcasecmp(val, "cam") == 0) {
217 		mode = IEEE80211_POWERSAVE_CAM;
218 	} else if (strcasecmp(val, "psp") == 0) {
219 		mode = IEEE80211_POWERSAVE_PSP;
220 	} else if (strcasecmp(val, "psp-cam") == 0) {
221 		mode = IEEE80211_POWERSAVE_PSP_CAM;
222 	} else {
223 		errx(1, "unknown powersavemode");
224 	}
225 
226 	set80211(s, IEEE80211_IOC_POWERSAVE, mode, 0, NULL);
227 }
228 
229 static void
230 set80211powersave(const char *val, int d, int s, const struct afswtch *rafp)
231 {
232 	if (d == 0)
233 		set80211(s, IEEE80211_IOC_POWERSAVE, IEEE80211_POWERSAVE_OFF,
234 		    0, NULL);
235 	else
236 		set80211(s, IEEE80211_IOC_POWERSAVE, IEEE80211_POWERSAVE_ON,
237 		    0, NULL);
238 }
239 
240 static void
241 set80211powersavesleep(const char *val, int d, int s, const struct afswtch *rafp)
242 {
243 	set80211(s, IEEE80211_IOC_POWERSAVESLEEP, atoi(val), 0, NULL);
244 }
245 
246 static void
247 set80211wepmode(const char *val, int d, int s, const struct afswtch *rafp)
248 {
249 	int	mode;
250 
251 	if (strcasecmp(val, "off") == 0) {
252 		mode = IEEE80211_WEP_OFF;
253 	} else if (strcasecmp(val, "on") == 0) {
254 		mode = IEEE80211_WEP_ON;
255 	} else if (strcasecmp(val, "mixed") == 0) {
256 		mode = IEEE80211_WEP_MIXED;
257 	} else {
258 		errx(1, "unknown wep mode");
259 	}
260 
261 	set80211(s, IEEE80211_IOC_WEP, mode, 0, NULL);
262 }
263 
264 static void
265 set80211wep(const char *val, int d, int s, const struct afswtch *rafp)
266 {
267 	set80211(s, IEEE80211_IOC_WEP, d, 0, NULL);
268 }
269 
270 static int
271 isundefarg(const char *arg)
272 {
273 	return (strcmp(arg, "-") == 0 || strncasecmp(arg, "undef", 5) == 0);
274 }
275 
276 static void
277 set80211weptxkey(const char *val, int d, int s, const struct afswtch *rafp)
278 {
279 	if (isundefarg(val))
280 		set80211(s, IEEE80211_IOC_WEPTXKEY, IEEE80211_KEYIX_NONE, 0, NULL);
281 	else
282 		set80211(s, IEEE80211_IOC_WEPTXKEY, atoi(val)-1, 0, NULL);
283 }
284 
285 static void
286 set80211wepkey(const char *val, int d, int s, const struct afswtch *rafp)
287 {
288 	int		key = 0;
289 	int		len;
290 	u_int8_t	data[IEEE80211_KEYBUF_SIZE];
291 
292 	if (isdigit(val[0]) && val[1] == ':') {
293 		key = atoi(val)-1;
294 		val += 2;
295 	}
296 
297 	bzero(data, sizeof(data));
298 	len = sizeof(data);
299 	get_string(val, NULL, data, &len);
300 
301 	set80211(s, IEEE80211_IOC_WEPKEY, key, len, data);
302 }
303 
304 /*
305  * This function is purely a NetBSD compatability interface.  The NetBSD
306  * interface is too inflexible, but it's there so we'll support it since
307  * it's not all that hard.
308  */
309 static void
310 set80211nwkey(const char *val, int d, int s, const struct afswtch *rafp)
311 {
312 	int		txkey;
313 	int		i, len;
314 	u_int8_t	data[IEEE80211_KEYBUF_SIZE];
315 
316 	set80211(s, IEEE80211_IOC_WEP, IEEE80211_WEP_ON, 0, NULL);
317 
318 	if (isdigit(val[0]) && val[1] == ':') {
319 		txkey = val[0]-'0'-1;
320 		val += 2;
321 
322 		for (i = 0; i < 4; i++) {
323 			bzero(data, sizeof(data));
324 			len = sizeof(data);
325 			val = get_string(val, ",", data, &len);
326 			if (val == NULL)
327 				exit(1);
328 
329 			set80211(s, IEEE80211_IOC_WEPKEY, i, len, data);
330 		}
331 	} else {
332 		bzero(data, sizeof(data));
333 		len = sizeof(data);
334 		get_string(val, NULL, data, &len);
335 		txkey = 0;
336 
337 		set80211(s, IEEE80211_IOC_WEPKEY, 0, len, data);
338 
339 		bzero(data, sizeof(data));
340 		for (i = 1; i < 4; i++)
341 			set80211(s, IEEE80211_IOC_WEPKEY, i, 0, data);
342 	}
343 
344 	set80211(s, IEEE80211_IOC_WEPTXKEY, txkey, 0, NULL);
345 }
346 
347 static void
348 set80211rtsthreshold(const char *val, int d, int s, const struct afswtch *rafp)
349 {
350 	set80211(s, IEEE80211_IOC_RTSTHRESHOLD,
351 		isundefarg(val) ? IEEE80211_RTS_MAX : atoi(val), 0, NULL);
352 }
353 
354 static void
355 set80211protmode(const char *val, int d, int s, const struct afswtch *rafp)
356 {
357 	int	mode;
358 
359 	if (strcasecmp(val, "off") == 0) {
360 		mode = IEEE80211_PROTMODE_OFF;
361 	} else if (strcasecmp(val, "cts") == 0) {
362 		mode = IEEE80211_PROTMODE_CTS;
363 	} else if (strcasecmp(val, "rtscts") == 0) {
364 		mode = IEEE80211_PROTMODE_RTSCTS;
365 	} else {
366 		errx(1, "unknown protection mode");
367 	}
368 
369 	set80211(s, IEEE80211_IOC_PROTMODE, mode, 0, NULL);
370 }
371 
372 static void
373 set80211txpower(const char *val, int d, int s, const struct afswtch *rafp)
374 {
375 	set80211(s, IEEE80211_IOC_TXPOWER, atoi(val), 0, NULL);
376 }
377 
378 #define	IEEE80211_ROAMING_DEVICE	0
379 #define	IEEE80211_ROAMING_AUTO		1
380 #define	IEEE80211_ROAMING_MANUAL	2
381 
382 static void
383 set80211roaming(const char *val, int d, int s, const struct afswtch *rafp)
384 {
385 	int mode;
386 
387 	if (strcasecmp(val, "device") == 0) {
388 		mode = IEEE80211_ROAMING_DEVICE;
389 	} else if (strcasecmp(val, "auto") == 0) {
390 		mode = IEEE80211_ROAMING_AUTO;
391 	} else if (strcasecmp(val, "manual") == 0) {
392 		mode = IEEE80211_ROAMING_MANUAL;
393 	} else {
394 		errx(1, "unknown roaming mode");
395 	}
396 	set80211(s, IEEE80211_IOC_ROAMING, mode, 0, NULL);
397 }
398 
399 static void
400 set80211wme(const char *val, int d, int s, const struct afswtch *rafp)
401 {
402 	set80211(s, IEEE80211_IOC_WME, d, 0, NULL);
403 }
404 
405 static void
406 set80211hidessid(const char *val, int d, int s, const struct afswtch *rafp)
407 {
408 	set80211(s, IEEE80211_IOC_HIDESSID, d, 0, NULL);
409 }
410 
411 static void
412 set80211apbridge(const char *val, int d, int s, const struct afswtch *rafp)
413 {
414 	set80211(s, IEEE80211_IOC_APBRIDGE, d, 0, NULL);
415 }
416 
417 static void
418 set80211chanlist(const char *val, int d, int s, const struct afswtch *rafp)
419 {
420 	struct ieee80211req_chanlist chanlist;
421 #define	MAXCHAN	(sizeof(chanlist.ic_channels)*NBBY)
422 	char *temp, *cp, *tp;
423 
424 	temp = malloc(strlen(val) + 1);
425 	if (temp == NULL)
426 		errx(1, "malloc failed");
427 	strcpy(temp, val);
428 	memset(&chanlist, 0, sizeof(chanlist));
429 	cp = temp;
430 	for (;;) {
431 		int first, last, f;
432 
433 		tp = strchr(cp, ',');
434 		if (tp != NULL)
435 			*tp++ = '\0';
436 		switch (sscanf(cp, "%u-%u", &first, &last)) {
437 		case 1:
438 			if (first > MAXCHAN)
439 				errx(-1, "channel %u out of range, max %zu",
440 					first, MAXCHAN);
441 			setbit(chanlist.ic_channels, first);
442 			break;
443 		case 2:
444 			if (first > MAXCHAN)
445 				errx(-1, "channel %u out of range, max %zu",
446 					first, MAXCHAN);
447 			if (last > MAXCHAN)
448 				errx(-1, "channel %u out of range, max %zu",
449 					last, MAXCHAN);
450 			if (first > last)
451 				errx(-1, "void channel range, %u > %u",
452 					first, last);
453 			for (f = first; f <= last; f++)
454 				setbit(chanlist.ic_channels, f);
455 			break;
456 		}
457 		if (tp == NULL)
458 			break;
459 		while (isspace(*tp))
460 			tp++;
461 		if (!isdigit(*tp))
462 			break;
463 		cp = tp;
464 	}
465 	set80211(s, IEEE80211_IOC_CHANLIST, 0,
466 		sizeof(chanlist), (uint8_t *) &chanlist);
467 #undef MAXCHAN
468 }
469 
470 static void
471 set80211bssid(const char *val, int d, int s, const struct afswtch *rafp)
472 {
473 
474 	if (!isanyarg(val)) {
475 		char *temp;
476 		struct sockaddr_dl sdl;
477 
478 		temp = malloc(strlen(val) + 1);
479 		if (temp == NULL)
480 			errx(1, "malloc failed");
481 		temp[0] = ':';
482 		strcpy(temp + 1, val);
483 		sdl.sdl_len = sizeof(sdl);
484 		link_addr(temp, &sdl);
485 		free(temp);
486 		if (sdl.sdl_alen != IEEE80211_ADDR_LEN)
487 			errx(1, "malformed link-level address");
488 		set80211(s, IEEE80211_IOC_BSSID, 0,
489 			IEEE80211_ADDR_LEN, LLADDR(&sdl));
490 	} else {
491 		uint8_t zerobssid[IEEE80211_ADDR_LEN];
492 		memset(zerobssid, 0, sizeof(zerobssid));
493 		set80211(s, IEEE80211_IOC_BSSID, 0,
494 			IEEE80211_ADDR_LEN, zerobssid);
495 	}
496 }
497 
498 static int
499 getac(const char *ac)
500 {
501 	if (strcasecmp(ac, "ac_be") == 0 || strcasecmp(ac, "be") == 0)
502 		return WME_AC_BE;
503 	if (strcasecmp(ac, "ac_bk") == 0 || strcasecmp(ac, "bk") == 0)
504 		return WME_AC_BK;
505 	if (strcasecmp(ac, "ac_vi") == 0 || strcasecmp(ac, "vi") == 0)
506 		return WME_AC_VI;
507 	if (strcasecmp(ac, "ac_vo") == 0 || strcasecmp(ac, "vo") == 0)
508 		return WME_AC_VO;
509 	errx(1, "unknown wme access class %s", ac);
510 }
511 
512 static
513 DECL_CMD_FUNC2(set80211cwmin, ac, val)
514 {
515 	set80211(s, IEEE80211_IOC_WME_CWMIN, atoi(val), getac(ac), NULL);
516 }
517 
518 static
519 DECL_CMD_FUNC2(set80211cwmax, ac, val)
520 {
521 	set80211(s, IEEE80211_IOC_WME_CWMAX, atoi(val), getac(ac), NULL);
522 }
523 
524 static
525 DECL_CMD_FUNC2(set80211aifs, ac, val)
526 {
527 	set80211(s, IEEE80211_IOC_WME_AIFS, atoi(val), getac(ac), NULL);
528 }
529 
530 static
531 DECL_CMD_FUNC2(set80211txoplimit, ac, val)
532 {
533 	set80211(s, IEEE80211_IOC_WME_TXOPLIMIT, atoi(val), getac(ac), NULL);
534 }
535 
536 static
537 DECL_CMD_FUNC(set80211acm, ac, d)
538 {
539 	set80211(s, IEEE80211_IOC_WME_ACM, 1, getac(ac), NULL);
540 }
541 static
542 DECL_CMD_FUNC(set80211noacm, ac, d)
543 {
544 	set80211(s, IEEE80211_IOC_WME_ACM, 0, getac(ac), NULL);
545 }
546 
547 static
548 DECL_CMD_FUNC(set80211ackpolicy, ac, d)
549 {
550 	set80211(s, IEEE80211_IOC_WME_ACKPOLICY, 1, getac(ac), NULL);
551 }
552 static
553 DECL_CMD_FUNC(set80211noackpolicy, ac, d)
554 {
555 	set80211(s, IEEE80211_IOC_WME_ACKPOLICY, 0, getac(ac), NULL);
556 }
557 
558 static
559 DECL_CMD_FUNC2(set80211bsscwmin, ac, val)
560 {
561 	set80211(s, IEEE80211_IOC_WME_CWMIN, atoi(val),
562 		getac(ac)|IEEE80211_WMEPARAM_BSS, NULL);
563 }
564 
565 static
566 DECL_CMD_FUNC2(set80211bsscwmax, ac, val)
567 {
568 	set80211(s, IEEE80211_IOC_WME_CWMAX, atoi(val),
569 		getac(ac)|IEEE80211_WMEPARAM_BSS, NULL);
570 }
571 
572 static
573 DECL_CMD_FUNC2(set80211bssaifs, ac, val)
574 {
575 	set80211(s, IEEE80211_IOC_WME_AIFS, atoi(val),
576 		getac(ac)|IEEE80211_WMEPARAM_BSS, NULL);
577 }
578 
579 static
580 DECL_CMD_FUNC2(set80211bsstxoplimit, ac, val)
581 {
582 	set80211(s, IEEE80211_IOC_WME_TXOPLIMIT, atoi(val),
583 		getac(ac)|IEEE80211_WMEPARAM_BSS, NULL);
584 }
585 
586 static
587 DECL_CMD_FUNC(set80211dtimperiod, val, d)
588 {
589 	set80211(s, IEEE80211_IOC_DTIM_PERIOD, atoi(val), 0, NULL);
590 }
591 
592 static
593 DECL_CMD_FUNC(set80211bintval, val, d)
594 {
595 	set80211(s, IEEE80211_IOC_BEACON_INTERVAL, atoi(val), 0, NULL);
596 }
597 
598 static void
599 set80211macmac(int s, int op, const char *val)
600 {
601 	char *temp;
602 	struct sockaddr_dl sdl;
603 
604 	temp = malloc(strlen(val) + 1);
605 	if (temp == NULL)
606 		errx(1, "malloc failed");
607 	temp[0] = ':';
608 	strcpy(temp + 1, val);
609 	sdl.sdl_len = sizeof(sdl);
610 	link_addr(temp, &sdl);
611 	free(temp);
612 	if (sdl.sdl_alen != IEEE80211_ADDR_LEN)
613 		errx(1, "malformed link-level address");
614 	set80211(s, op, 0, IEEE80211_ADDR_LEN, LLADDR(&sdl));
615 }
616 
617 static
618 DECL_CMD_FUNC(set80211addmac, val, d)
619 {
620 	set80211macmac(s, IEEE80211_IOC_ADDMAC, val);
621 }
622 
623 static
624 DECL_CMD_FUNC(set80211delmac, val, d)
625 {
626 	set80211macmac(s, IEEE80211_IOC_DELMAC, val);
627 }
628 
629 static
630 DECL_CMD_FUNC(set80211kickmac, val, d)
631 {
632 	char *temp;
633 	struct sockaddr_dl sdl;
634 	struct ieee80211req_mlme mlme;
635 
636 	temp = malloc(strlen(val) + 1);
637 	if (temp == NULL)
638 		errx(1, "malloc failed");
639 	temp[0] = ':';
640 	strcpy(temp + 1, val);
641 	sdl.sdl_len = sizeof(sdl);
642 	link_addr(temp, &sdl);
643 	free(temp);
644 	if (sdl.sdl_alen != IEEE80211_ADDR_LEN)
645 		errx(1, "malformed link-level address");
646 	memset(&mlme, 0, sizeof(mlme));
647 	mlme.im_op = IEEE80211_MLME_DEAUTH;
648 	mlme.im_reason = IEEE80211_REASON_AUTH_EXPIRE;
649 	memcpy(mlme.im_macaddr, LLADDR(&sdl), IEEE80211_ADDR_LEN);
650 	set80211(s, IEEE80211_IOC_MLME, 0, sizeof(mlme), (u_int8_t *) &mlme);
651 }
652 
653 static
654 DECL_CMD_FUNC(set80211maccmd, val, d)
655 {
656 	set80211(s, IEEE80211_IOC_MACCMD, d, 0, NULL);
657 }
658 
659 static void
660 set80211pureg(const char *val, int d, int s, const struct afswtch *rafp)
661 {
662 	set80211(s, IEEE80211_IOC_PUREG, d, 0, NULL);
663 }
664 
665 static
666 DECL_CMD_FUNC(set80211fragthreshold, val, d)
667 {
668 	set80211(s, IEEE80211_IOC_FRAGTHRESHOLD,
669 		isundefarg(val) ? IEEE80211_FRAG_MAX : atoi(val), 0, NULL);
670 }
671 
672 static int
673 getmaxrate(uint8_t rates[15], uint8_t nrates)
674 {
675 	int i, maxrate = -1;
676 
677 	for (i = 0; i < nrates; i++) {
678 		int rate = rates[i] & IEEE80211_RATE_VAL;
679 		if (rate > maxrate)
680 			maxrate = rate;
681 	}
682 	return maxrate / 2;
683 }
684 
685 static const char *
686 getcaps(int capinfo)
687 {
688 	static char capstring[32];
689 	char *cp = capstring;
690 
691 	if (capinfo & IEEE80211_CAPINFO_ESS)
692 		*cp++ = 'E';
693 	if (capinfo & IEEE80211_CAPINFO_IBSS)
694 		*cp++ = 'I';
695 	if (capinfo & IEEE80211_CAPINFO_CF_POLLABLE)
696 		*cp++ = 'c';
697 	if (capinfo & IEEE80211_CAPINFO_CF_POLLREQ)
698 		*cp++ = 'C';
699 	if (capinfo & IEEE80211_CAPINFO_PRIVACY)
700 		*cp++ = 'P';
701 	if (capinfo & IEEE80211_CAPINFO_SHORT_PREAMBLE)
702 		*cp++ = 'S';
703 	if (capinfo & IEEE80211_CAPINFO_PBCC)
704 		*cp++ = 'B';
705 	if (capinfo & IEEE80211_CAPINFO_CHNL_AGILITY)
706 		*cp++ = 'A';
707 	if (capinfo & IEEE80211_CAPINFO_SHORT_SLOTTIME)
708 		*cp++ = 's';
709 	if (capinfo & IEEE80211_CAPINFO_RSN)
710 		*cp++ = 'R';
711 	if (capinfo & IEEE80211_CAPINFO_DSSSOFDM)
712 		*cp++ = 'D';
713 	*cp = '\0';
714 	return capstring;
715 }
716 
717 static void
718 printie(const char* tag, const uint8_t *ie, size_t ielen, int maxlen)
719 {
720 	printf("%s", tag);
721 	if (verbose) {
722 		maxlen -= strlen(tag)+2;
723 		if (2*ielen > maxlen)
724 			maxlen--;
725 		printf("<");
726 		for (; ielen > 0; ie++, ielen--) {
727 			if (maxlen-- <= 0)
728 				break;
729 			printf("%02x", *ie);
730 		}
731 		if (ielen != 0)
732 			printf("-");
733 		printf(">");
734 	}
735 }
736 
737 /*
738  * Copy the ssid string contents into buf, truncating to fit.  If the
739  * ssid is entirely printable then just copy intact.  Otherwise convert
740  * to hexadecimal.  If the result is truncated then replace the last
741  * three characters with "...".
742  */
743 static int
744 copy_essid(char buf[], size_t bufsize, const u_int8_t *essid, size_t essid_len)
745 {
746 	const u_int8_t *p;
747 	size_t maxlen;
748 	int i;
749 
750 	if (essid_len > bufsize)
751 		maxlen = bufsize;
752 	else
753 		maxlen = essid_len;
754 	/* determine printable or not */
755 	for (i = 0, p = essid; i < maxlen; i++, p++) {
756 		if (*p < ' ' || *p > 0x7e)
757 			break;
758 	}
759 	if (i != maxlen) {		/* not printable, print as hex */
760 		if (bufsize < 3)
761 			return 0;
762 		strlcpy(buf, "0x", bufsize);
763 		bufsize -= 2;
764 		p = essid;
765 		for (i = 0; i < maxlen && bufsize >= 2; i++) {
766 			sprintf(&buf[2+2*i], "%02x", p[i]);
767 			bufsize -= 2;
768 		}
769 		if (i != essid_len)
770 			memcpy(&buf[2+2*i-3], "...", 3);
771 	} else {			/* printable, truncate as needed */
772 		memcpy(buf, essid, maxlen);
773 		if (maxlen != essid_len)
774 			memcpy(&buf[maxlen-3], "...", 3);
775 	}
776 	return maxlen;
777 }
778 
779 /* unaligned little endian access */
780 #define LE_READ_4(p)					\
781 	((u_int32_t)					\
782 	 ((((const u_int8_t *)(p))[0]      ) |		\
783 	  (((const u_int8_t *)(p))[1] <<  8) |		\
784 	  (((const u_int8_t *)(p))[2] << 16) |		\
785 	  (((const u_int8_t *)(p))[3] << 24)))
786 
787 static int __inline
788 iswpaoui(const u_int8_t *frm)
789 {
790 	return frm[1] > 3 && LE_READ_4(frm+2) == ((WPA_OUI_TYPE<<24)|WPA_OUI);
791 }
792 
793 static int __inline
794 iswmeoui(const u_int8_t *frm)
795 {
796 	return frm[1] > 3 && LE_READ_4(frm+2) == ((WME_OUI_TYPE<<24)|WME_OUI);
797 }
798 
799 static int __inline
800 isatherosoui(const u_int8_t *frm)
801 {
802 	return frm[1] > 3 && LE_READ_4(frm+2) == ((ATH_OUI_TYPE<<24)|ATH_OUI);
803 }
804 
805 static void
806 printies(const u_int8_t *vp, int ielen, int maxcols)
807 {
808 	while (ielen > 0) {
809 		switch (vp[0]) {
810 		case IEEE80211_ELEMID_VENDOR:
811 			if (iswpaoui(vp))
812 				printie(" WPA", vp, 2+vp[1], maxcols);
813 			else if (iswmeoui(vp))
814 				printie(" WME", vp, 2+vp[1], maxcols);
815 			else if (isatherosoui(vp))
816 				printie(" ATH", vp, 2+vp[1], maxcols);
817 			else
818 				printie(" VEN", vp, 2+vp[1], maxcols);
819 			break;
820 		case IEEE80211_ELEMID_RSN:
821 			printie(" RSN", vp, 2+vp[1], maxcols);
822 			break;
823 		default:
824 			printie(" ???", vp, 2+vp[1], maxcols);
825 			break;
826 		}
827 		ielen -= 2+vp[1];
828 		vp += 2+vp[1];
829 	}
830 }
831 
832 static void
833 list_scan(int s)
834 {
835 	uint8_t buf[24*1024];
836 	struct ieee80211req ireq;
837 	char ssid[14];
838 	uint8_t *cp;
839 	int len;
840 
841 	(void) memset(&ireq, 0, sizeof(ireq));
842 	(void) strncpy(ireq.i_name, name, sizeof(ireq.i_name));
843 	ireq.i_type = IEEE80211_IOC_SCAN_RESULTS;
844 	ireq.i_data = buf;
845 	ireq.i_len = sizeof(buf);
846 	if (ioctl(s, SIOCG80211, &ireq) < 0)
847 		errx(1, "unable to get scan results");
848 	len = ireq.i_len;
849 	if (len < sizeof(struct ieee80211req_scan_result))
850 		return;
851 
852 	printf("%-14.14s  %-17.17s  %4s %4s  %-5s %3s %4s\n"
853 		, "SSID"
854 		, "BSSID"
855 		, "CHAN"
856 		, "RATE"
857 		, "S:N"
858 		, "INT"
859 		, "CAPS"
860 	);
861 	cp = buf;
862 	do {
863 		struct ieee80211req_scan_result *sr;
864 		uint8_t *vp;
865 
866 		sr = (struct ieee80211req_scan_result *) cp;
867 		vp = (u_int8_t *)(sr+1);
868 		printf("%-14.*s  %s  %3d  %3dM %2d:%-2d  %3d %-4.4s"
869 			, copy_essid(ssid, sizeof(ssid), vp, sr->isr_ssid_len)
870 				, ssid
871 			, ether_ntoa((const struct ether_addr *) sr->isr_bssid)
872 			, ieee80211_mhz2ieee(sr->isr_freq)
873 			, getmaxrate(sr->isr_rates, sr->isr_nrates)
874 			, sr->isr_rssi, sr->isr_noise
875 			, sr->isr_intval
876 			, getcaps(sr->isr_capinfo)
877 		);
878 		printies(vp + sr->isr_ssid_len, sr->isr_ie_len, 24);;
879 		printf("\n");
880 		cp += sr->isr_len, len -= sr->isr_len;
881 	} while (len >= sizeof(struct ieee80211req_scan_result));
882 }
883 
884 #include <net80211/ieee80211_freebsd.h>
885 
886 static void
887 scan_and_wait(int s)
888 {
889 	struct ieee80211req ireq;
890 	int sroute;
891 
892 	sroute = socket(PF_ROUTE, SOCK_RAW, 0);
893 	if (sroute < 0) {
894 		perror("socket(PF_ROUTE,SOCK_RAW)");
895 		return;
896 	}
897 	(void) memset(&ireq, 0, sizeof(ireq));
898 	(void) strncpy(ireq.i_name, name, sizeof(ireq.i_name));
899 	ireq.i_type = IEEE80211_IOC_SCAN_REQ;
900 	/* NB: only root can trigger a scan so ignore errors */
901 	if (ioctl(s, SIOCS80211, &ireq) >= 0) {
902 		char buf[2048];
903 		struct if_announcemsghdr *ifan;
904 		struct rt_msghdr *rtm;
905 
906 		do {
907 			if (read(sroute, buf, sizeof(buf)) < 0) {
908 				perror("read(PF_ROUTE)");
909 				break;
910 			}
911 			rtm = (struct rt_msghdr *) buf;
912 			if (rtm->rtm_version != RTM_VERSION)
913 				break;
914 			ifan = (struct if_announcemsghdr *) rtm;
915 		} while (rtm->rtm_type != RTM_IEEE80211 ||
916 		    ifan->ifan_what != RTM_IEEE80211_SCAN);
917 	}
918 	close(sroute);
919 }
920 
921 static
922 DECL_CMD_FUNC(set80211scan, val, d)
923 {
924 	scan_and_wait(s);
925 	list_scan(s);
926 }
927 
928 static void
929 list_stations(int s)
930 {
931 	uint8_t buf[24*1024];
932 	struct ieee80211req ireq;
933 	uint8_t *cp;
934 	int len;
935 
936 	(void) memset(&ireq, 0, sizeof(ireq));
937 	(void) strncpy(ireq.i_name, name, sizeof(ireq.i_name));
938 	ireq.i_type = IEEE80211_IOC_STA_INFO;
939 	ireq.i_data = buf;
940 	ireq.i_len = sizeof(buf);
941 	if (ioctl(s, SIOCG80211, &ireq) < 0)
942 		errx(1, "unable to get station information");
943 	len = ireq.i_len;
944 	if (len < sizeof(struct ieee80211req_sta_info))
945 		return;
946 
947 	printf("%-17.17s %4s %4s %4s %4s %4s %6s %6s %4s %3s\n"
948 		, "ADDR"
949 		, "AID"
950 		, "CHAN"
951 		, "RATE"
952 		, "RSSI"
953 		, "IDLE"
954 		, "TXSEQ"
955 		, "RXSEQ"
956 		, "CAPS"
957 		, "ERP"
958 	);
959 	cp = buf;
960 	do {
961 		struct ieee80211req_sta_info *si;
962 		uint8_t *vp;
963 
964 		si = (struct ieee80211req_sta_info *) cp;
965 		vp = (u_int8_t *)(si+1);
966 		printf("%s %4u %4d %3dM %4d %4d %6d %6d %-4.4s %3x"
967 			, ether_ntoa((const struct ether_addr*) si->isi_macaddr)
968 			, IEEE80211_AID(si->isi_associd)
969 			, ieee80211_mhz2ieee(si->isi_freq)
970 			, (si->isi_rates[si->isi_txrate] & IEEE80211_RATE_VAL)/2
971 			, si->isi_rssi
972 			, si->isi_inact
973 			, si->isi_txseqs[0]
974 			, si->isi_rxseqs[0]
975 			, getcaps(si->isi_capinfo)
976 			, si->isi_erp
977 		);
978 		printies(vp, si->isi_ie_len, 24);
979 		printf("\n");
980 		cp += si->isi_len, len -= si->isi_len;
981 	} while (len >= sizeof(struct ieee80211req_sta_info));
982 }
983 
984 static void
985 print_chaninfo(const struct ieee80211_channel *c)
986 {
987 #define	IEEE80211_IS_CHAN_PASSIVE(_c) \
988 	(((_c)->ic_flags & IEEE80211_CHAN_PASSIVE))
989 	char buf[14];
990 
991 	buf[0] = '\0';
992 	if (IEEE80211_IS_CHAN_FHSS(c))
993 		strlcat(buf, " FHSS", sizeof(buf));
994 	if (IEEE80211_IS_CHAN_A(c))
995 		strlcat(buf, " 11a", sizeof(buf));
996 	/* XXX 11g schizophrenia */
997 	if (IEEE80211_IS_CHAN_G(c) ||
998 	    IEEE80211_IS_CHAN_PUREG(c))
999 		strlcat(buf, " 11g", sizeof(buf));
1000 	else if (IEEE80211_IS_CHAN_B(c))
1001 		strlcat(buf, " 11b", sizeof(buf));
1002 	if (IEEE80211_IS_CHAN_T(c))
1003 		strlcat(buf, " Turbo", sizeof(buf));
1004 	printf("Channel %3u : %u%c Mhz%-14.14s",
1005 		ieee80211_mhz2ieee(c->ic_freq), c->ic_freq,
1006 		IEEE80211_IS_CHAN_PASSIVE(c) ? '*' : ' ', buf);
1007 #undef IEEE80211_IS_CHAN_PASSIVE
1008 }
1009 
1010 static void
1011 list_channels(int s, int allchans)
1012 {
1013 	struct ieee80211req ireq;
1014 	struct ieee80211req_chaninfo chans;
1015 	struct ieee80211req_chaninfo achans;
1016 	const struct ieee80211_channel *c;
1017 	int i, half;
1018 
1019 	(void) memset(&ireq, 0, sizeof(ireq));
1020 	(void) strncpy(ireq.i_name, name, sizeof(ireq.i_name));
1021 	ireq.i_type = IEEE80211_IOC_CHANINFO;
1022 	ireq.i_data = &chans;
1023 	ireq.i_len = sizeof(chans);
1024 	if (ioctl(s, SIOCG80211, &ireq) < 0)
1025 		errx(1, "unable to get channel information");
1026 	if (!allchans) {
1027 		struct ieee80211req_chanlist active;
1028 
1029 		ireq.i_type = IEEE80211_IOC_CHANLIST;
1030 		ireq.i_data = &active;
1031 		ireq.i_len = sizeof(active);
1032 		if (ioctl(s, SIOCG80211, &ireq) < 0)
1033 			errx(1, "unable to get active channel list");
1034 		memset(&achans, 0, sizeof(achans));
1035 		for (i = 0; i < chans.ic_nchans; i++) {
1036 			c = &chans.ic_chans[i];
1037 			if (isset(active.ic_channels, ieee80211_mhz2ieee(c->ic_freq)) || allchans)
1038 				achans.ic_chans[achans.ic_nchans++] = *c;
1039 		}
1040 	} else
1041 		achans = chans;
1042 	half = achans.ic_nchans / 2;
1043 	if (achans.ic_nchans % 2)
1044 		half++;
1045 	for (i = 0; i < achans.ic_nchans / 2; i++) {
1046 		print_chaninfo(&achans.ic_chans[i]);
1047 		print_chaninfo(&achans.ic_chans[half+i]);
1048 		printf("\n");
1049 	}
1050 	if (achans.ic_nchans % 2) {
1051 		print_chaninfo(&achans.ic_chans[i]);
1052 		printf("\n");
1053 	}
1054 }
1055 
1056 static void
1057 list_keys(int s)
1058 {
1059 }
1060 
1061 #define	IEEE80211_C_BITS \
1062 "\020\1WEP\2TKIP\3AES\4AES_CCM\6CKIP\11IBSS\12PMGT\13HOSTAP\14AHDEMO" \
1063 "\15SWRETRY\16TXPMGT\17SHSLOT\20SHPREAMBLE\21MONITOR\22TKIPMIC\30WPA1" \
1064 "\31WPA2\32BURST\33WME"
1065 
1066 static void
1067 list_capabilities(int s)
1068 {
1069 	struct ieee80211req ireq;
1070 	u_int32_t caps;
1071 
1072 	(void) memset(&ireq, 0, sizeof(ireq));
1073 	(void) strncpy(ireq.i_name, name, sizeof(ireq.i_name));
1074 	ireq.i_type = IEEE80211_IOC_DRIVER_CAPS;
1075 	if (ioctl(s, SIOCG80211, &ireq) < 0)
1076 		errx(1, "unable to get driver capabilities");
1077 	caps = (((u_int16_t) ireq.i_val) << 16) | ((u_int16_t) ireq.i_len);
1078 	printb(name, caps, IEEE80211_C_BITS);
1079 	putchar('\n');
1080 }
1081 
1082 static void
1083 list_wme(int s)
1084 {
1085 	static const char *acnames[] = { "AC_BE", "AC_BK", "AC_VI", "AC_VO" };
1086 	struct ieee80211req ireq;
1087 	int ac;
1088 
1089 	(void) memset(&ireq, 0, sizeof(ireq));
1090 	(void) strncpy(ireq.i_name, name, sizeof(ireq.i_name));
1091 	ireq.i_len = 0;
1092 	for (ac = WME_AC_BE; ac <= WME_AC_VO; ac++) {
1093 again:
1094 		if (ireq.i_len & IEEE80211_WMEPARAM_BSS)
1095 			printf("\t%s", "     ");
1096 		else
1097 			printf("\t%s", acnames[ac]);
1098 
1099 		ireq.i_len = (ireq.i_len & IEEE80211_WMEPARAM_BSS) | ac;
1100 
1101 		/* show WME BSS parameters */
1102 		ireq.i_type = IEEE80211_IOC_WME_CWMIN;
1103 		if (ioctl(s, SIOCG80211, &ireq) != -1)
1104 			printf(" cwmin %2u", ireq.i_val);
1105 		ireq.i_type = IEEE80211_IOC_WME_CWMAX;
1106 		if (ioctl(s, SIOCG80211, &ireq) != -1)
1107 			printf(" cwmax %2u", ireq.i_val);
1108 		ireq.i_type = IEEE80211_IOC_WME_AIFS;
1109 		if (ioctl(s, SIOCG80211, &ireq) != -1)
1110 			printf(" aifs %2u", ireq.i_val);
1111 		ireq.i_type = IEEE80211_IOC_WME_TXOPLIMIT;
1112 		if (ioctl(s, SIOCG80211, &ireq) != -1)
1113 			printf(" txopLimit %3u", ireq.i_val);
1114 		ireq.i_type = IEEE80211_IOC_WME_ACM;
1115 		if (ioctl(s, SIOCG80211, &ireq) != -1) {
1116 			if (ireq.i_val)
1117 				printf(" acm");
1118 			else if (verbose)
1119 				printf(" -acm");
1120 		}
1121 		/* !BSS only */
1122 		if ((ireq.i_len & IEEE80211_WMEPARAM_BSS) == 0) {
1123 			ireq.i_type = IEEE80211_IOC_WME_ACKPOLICY;
1124 			if (ioctl(s, SIOCG80211, &ireq) != -1) {
1125 				if (!ireq.i_val)
1126 					printf(" -ack");
1127 				else if (verbose)
1128 					printf(" ack");
1129 			}
1130 		}
1131 		printf("\n");
1132 		if ((ireq.i_len & IEEE80211_WMEPARAM_BSS) == 0) {
1133 			ireq.i_len |= IEEE80211_WMEPARAM_BSS;
1134 			goto again;
1135 		} else
1136 			ireq.i_len &= ~IEEE80211_WMEPARAM_BSS;
1137 	}
1138 }
1139 
1140 static void
1141 list_mac(int s)
1142 {
1143 	struct ieee80211req ireq;
1144 	struct ieee80211req_maclist *acllist;
1145 	int i, nacls, policy;
1146 	char c;
1147 
1148 	(void) memset(&ireq, 0, sizeof(ireq));
1149 	(void) strncpy(ireq.i_name, name, sizeof(ireq.i_name)); /* XXX ?? */
1150 	ireq.i_type = IEEE80211_IOC_MACCMD;
1151 	ireq.i_val = IEEE80211_MACCMD_POLICY;
1152 	if (ioctl(s, SIOCG80211, &ireq) < 0) {
1153 		if (errno == EINVAL) {
1154 			printf("No acl policy loaded\n");
1155 			return;
1156 		}
1157 		err(1, "unable to get mac policy");
1158 	}
1159 	policy = ireq.i_val;
1160 
1161 	ireq.i_val = IEEE80211_MACCMD_LIST;
1162 	ireq.i_len = 0;
1163 	if (ioctl(s, SIOCG80211, &ireq) < 0)
1164 		err(1, "unable to get mac acl list size");
1165 	if (ireq.i_len == 0)		/* NB: no acls */
1166 		return;
1167 
1168 	ireq.i_data = malloc(ireq.i_len);
1169 	if (ireq.i_data == NULL)
1170 		err(1, "out of memory for acl list");
1171 
1172 	if (ioctl(s, SIOCG80211, &ireq) < 0)
1173 		err(1, "unable to get mac acl list");
1174 	if (policy == IEEE80211_MACCMD_POLICY_OPEN) {
1175 		if (verbose)
1176 			printf("policy: open\n");
1177 		c = '*';
1178 	} else if (policy == IEEE80211_MACCMD_POLICY_ALLOW) {
1179 		if (verbose)
1180 			printf("policy: allow\n");
1181 		c = '+';
1182 	} else if (policy == IEEE80211_MACCMD_POLICY_DENY) {
1183 		if (verbose)
1184 			printf("policy: deny\n");
1185 		c = '-';
1186 	} else {
1187 		printf("policy: unknown (%u)\n", policy);
1188 		c = '?';
1189 	}
1190 	nacls = ireq.i_len / sizeof(*acllist);
1191 	acllist = (struct ieee80211req_maclist *) ireq.i_data;
1192 	for (i = 0; i < nacls; i++)
1193 		printf("%c%s\n", c, ether_ntoa(
1194 			(const struct ether_addr *) acllist[i].ml_macaddr));
1195 }
1196 
1197 static
1198 DECL_CMD_FUNC(set80211list, arg, d)
1199 {
1200 #define	iseq(a,b)	(strncasecmp(a,b,sizeof(b)-1) == 0)
1201 
1202 	if (iseq(arg, "sta"))
1203 		list_stations(s);
1204 	else if (iseq(arg, "scan") || iseq(arg, "ap"))
1205 		list_scan(s);
1206 	else if (iseq(arg, "chan") || iseq(arg, "freq"))
1207 		list_channels(s, 1);
1208 	else if (iseq(arg, "active"))
1209 		list_channels(s, 0);
1210 	else if (iseq(arg, "keys"))
1211 		list_keys(s);
1212 	else if (iseq(arg, "caps"))
1213 		list_capabilities(s);
1214 	else if (iseq(arg, "wme"))
1215 		list_wme(s);
1216 	else if (iseq(arg, "mac"))
1217 		list_mac(s);
1218 	else
1219 		errx(1, "Don't know how to list %s for %s", arg, name);
1220 #undef iseq
1221 }
1222 
1223 static enum ieee80211_opmode
1224 get80211opmode(int s)
1225 {
1226 	struct ifmediareq ifmr;
1227 
1228 	(void) memset(&ifmr, 0, sizeof(ifmr));
1229 	(void) strncpy(ifmr.ifm_name, name, sizeof(ifmr.ifm_name));
1230 
1231 	if (ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmr) >= 0) {
1232 		if (ifmr.ifm_current & IFM_IEEE80211_ADHOC)
1233 			return IEEE80211_M_IBSS;	/* XXX ahdemo */
1234 		if (ifmr.ifm_current & IFM_IEEE80211_HOSTAP)
1235 			return IEEE80211_M_HOSTAP;
1236 		if (ifmr.ifm_current & IFM_IEEE80211_MONITOR)
1237 			return IEEE80211_M_MONITOR;
1238 	}
1239 	return IEEE80211_M_STA;
1240 }
1241 
1242 static const struct ieee80211_channel *
1243 getchaninfo(int s, int chan)
1244 {
1245 	struct ieee80211req ireq;
1246 	static struct ieee80211req_chaninfo chans;
1247 	static struct ieee80211_channel undef;
1248 	const struct ieee80211_channel *c;
1249 	int i, freq;
1250 
1251 	(void) memset(&ireq, 0, sizeof(ireq));
1252 	(void) strncpy(ireq.i_name, name, sizeof(ireq.i_name));
1253 	ireq.i_type = IEEE80211_IOC_CHANINFO;
1254 	ireq.i_data = &chans;
1255 	ireq.i_len = sizeof(chans);
1256 	if (ioctl(s, SIOCG80211, &ireq) < 0)
1257 		errx(1, "unable to get channel information");
1258 	freq = ieee80211_ieee2mhz(chan);
1259 	for (i = 0; i < chans.ic_nchans; i++) {
1260 		c = &chans.ic_chans[i];
1261 		if (c->ic_freq == freq)
1262 			return c;
1263 	}
1264 	return &undef;
1265 }
1266 
1267 #if 0
1268 static void
1269 printcipher(int s, struct ieee80211req *ireq, int keylenop)
1270 {
1271 	switch (ireq->i_val) {
1272 	case IEEE80211_CIPHER_WEP:
1273 		ireq->i_type = keylenop;
1274 		if (ioctl(s, SIOCG80211, ireq) != -1)
1275 			printf("WEP-%s",
1276 			    ireq->i_len <= 5 ? "40" :
1277 			    ireq->i_len <= 13 ? "104" : "128");
1278 		else
1279 			printf("WEP");
1280 		break;
1281 	case IEEE80211_CIPHER_TKIP:
1282 		printf("TKIP");
1283 		break;
1284 	case IEEE80211_CIPHER_AES_OCB:
1285 		printf("AES-OCB");
1286 		break;
1287 	case IEEE80211_CIPHER_AES_CCM:
1288 		printf("AES-CCM");
1289 		break;
1290 	case IEEE80211_CIPHER_CKIP:
1291 		printf("CKIP");
1292 		break;
1293 	case IEEE80211_CIPHER_NONE:
1294 		printf("NONE");
1295 		break;
1296 	default:
1297 		printf("UNKNOWN (0x%x)", ireq->i_val);
1298 		break;
1299 	}
1300 }
1301 #endif
1302 
1303 #define	MAXCOL	78
1304 int	col;
1305 char	spacer;
1306 
1307 #define	LINE_BREAK() do {			\
1308 	if (spacer != '\t') {			\
1309 		printf("\n");			\
1310 		spacer = '\t';			\
1311 	}					\
1312 	col = 8;	/* 8-col tab */		\
1313 } while (0)
1314 #define	LINE_CHECK(fmt, ...) do {		\
1315 	col += sizeof(fmt)-2;			\
1316 	if (col > MAXCOL) {			\
1317 		LINE_BREAK();			\
1318 		col += sizeof(fmt)-2;		\
1319 	}					\
1320 	printf(fmt, __VA_ARGS__);		\
1321 	spacer = ' ';				\
1322 } while (0)
1323 
1324 static void
1325 printkey(const struct ieee80211req_key *ik)
1326 {
1327 	static const uint8_t zerodata[IEEE80211_KEYBUF_SIZE];
1328 	int keylen = ik->ik_keylen;
1329 	int printcontents;
1330 
1331 	printcontents = printkeys &&
1332 		(memcmp(ik->ik_keydata, zerodata, keylen) != 0 || verbose);
1333 	if (printcontents)
1334 		LINE_BREAK();
1335 	switch (ik->ik_type) {
1336 	case IEEE80211_CIPHER_WEP:
1337 		/* compatibility */
1338 		LINE_CHECK("%cwepkey %u:%s", spacer, ik->ik_keyix+1,
1339 		    keylen <= 5 ? "40-bit" :
1340 		    keylen <= 13 ? "104-bit" : "128-bit");
1341 		break;
1342 	case IEEE80211_CIPHER_TKIP:
1343 		if (keylen > 128/8)
1344 			keylen -= 128/8;	/* ignore MIC for now */
1345 		LINE_CHECK("%cTKIP %u:%u-bit",
1346 			spacer, ik->ik_keyix+1, 8*keylen);
1347 		break;
1348 	case IEEE80211_CIPHER_AES_OCB:
1349 		LINE_CHECK("%cAES-OCB %u:%u-bit",
1350 			spacer, ik->ik_keyix+1, 8*keylen);
1351 		break;
1352 	case IEEE80211_CIPHER_AES_CCM:
1353 		LINE_CHECK("%cAES-CCM %u:%u-bit",
1354 			spacer, ik->ik_keyix+1, 8*keylen);
1355 		break;
1356 	case IEEE80211_CIPHER_CKIP:
1357 		LINE_CHECK("%cCKIP %u:%u-bit",
1358 			spacer, ik->ik_keyix+1, 8*keylen);
1359 		break;
1360 	case IEEE80211_CIPHER_NONE:
1361 		LINE_CHECK("%cNULL %u:%u-bit",
1362 			spacer, ik->ik_keyix+1, 8*keylen);
1363 		break;
1364 	default:
1365 		LINE_CHECK("%cUNKNOWN (0x%x) %u:%u-bit", spacer,
1366 			ik->ik_type, ik->ik_keyix+1, 8*keylen);
1367 		break;
1368 	}
1369 	if (printcontents) {
1370 		int i;
1371 
1372 		printf(" <");
1373 		for (i = 0; i < keylen; i++)
1374 			printf("%02x", ik->ik_keydata[i]);
1375 		printf(">");
1376 		if (ik->ik_type != IEEE80211_CIPHER_WEP &&
1377 		    (ik->ik_keyrsc != 0 || verbose))
1378 			printf(" rsc %ju", (uintmax_t)ik->ik_keyrsc);
1379 		if (ik->ik_type != IEEE80211_CIPHER_WEP &&
1380 		    (ik->ik_keytsc != 0 || verbose))
1381 			printf(" tsc %ju", (uintmax_t)ik->ik_keytsc);
1382 		if (ik->ik_flags != 0 && verbose) {
1383 			const char *sep = " ";
1384 
1385 			if (ik->ik_flags & IEEE80211_KEY_XMIT)
1386 				printf("%stx", sep), sep = "+";
1387 			if (ik->ik_flags & IEEE80211_KEY_RECV)
1388 				printf("%srx", sep), sep = "+";
1389 			if (ik->ik_flags & IEEE80211_KEY_DEFAULT)
1390 				printf("%sdef", sep), sep = "+";
1391 		}
1392 		LINE_BREAK();
1393 	}
1394 }
1395 
1396 static void
1397 ieee80211_status(int s)
1398 {
1399 	static const uint8_t zerobssid[IEEE80211_ADDR_LEN];
1400 	enum ieee80211_opmode opmode = get80211opmode(s);
1401 	int i, num, wpa, wme;
1402 	struct ieee80211req ireq;
1403 	u_int8_t data[32];
1404 	const struct ieee80211_channel *c;
1405 
1406 	(void) memset(&ireq, 0, sizeof(ireq));
1407 	(void) strncpy(ireq.i_name, name, sizeof(ireq.i_name));
1408 	ireq.i_data = &data;
1409 
1410 	wpa = 0;		/* unknown/not set */
1411 
1412 	ireq.i_type = IEEE80211_IOC_SSID;
1413 	ireq.i_val = -1;
1414 	if (ioctl(s, SIOCG80211, &ireq) < 0) {
1415 		/* If we can't get the SSID, this isn't an 802.11 device. */
1416 		return;
1417 	}
1418 	num = 0;
1419 	ireq.i_type = IEEE80211_IOC_NUMSSIDS;
1420 	if (ioctl(s, SIOCG80211, &ireq) >= 0)
1421 		num = ireq.i_val;
1422 	printf("\tssid ");
1423 	if (num > 1) {
1424 		ireq.i_type = IEEE80211_IOC_SSID;
1425 		for (ireq.i_val = 0; ireq.i_val < num; ireq.i_val++) {
1426 			if (ioctl(s, SIOCG80211, &ireq) >= 0 && ireq.i_len > 0) {
1427 				printf(" %d:", ireq.i_val + 1);
1428 				print_string(data, ireq.i_len);
1429 			}
1430 		}
1431 	} else
1432 		print_string(data, ireq.i_len);
1433 
1434 	ireq.i_type = IEEE80211_IOC_CHANNEL;
1435 	if (ioctl(s, SIOCG80211, &ireq) < 0)
1436 		goto end;
1437 	c = getchaninfo(s, ireq.i_val);
1438 	if (ireq.i_val != -1) {
1439 		printf(" channel %d", ireq.i_val);
1440 		if (verbose)
1441 			printf(" (%u)", c->ic_freq);
1442 	} else if (verbose)
1443 		printf(" channel UNDEF");
1444 
1445 	ireq.i_type = IEEE80211_IOC_BSSID;
1446 	ireq.i_len = IEEE80211_ADDR_LEN;
1447 	if (ioctl(s, SIOCG80211, &ireq) >= 0 &&
1448 	    memcmp(ireq.i_data, zerobssid, sizeof(zerobssid)) != 0)
1449 		printf(" bssid %s", ether_ntoa(ireq.i_data));
1450 
1451 	ireq.i_type = IEEE80211_IOC_STATIONNAME;
1452 	if (ioctl(s, SIOCG80211, &ireq) != -1) {
1453 		printf("\n\tstationname ");
1454 		print_string(data, ireq.i_len);
1455 	}
1456 
1457 	spacer = ' ';		/* force first break */
1458 	LINE_BREAK();
1459 
1460 	ireq.i_type = IEEE80211_IOC_AUTHMODE;
1461 	if (ioctl(s, SIOCG80211, &ireq) != -1) {
1462 		switch (ireq.i_val) {
1463 			case IEEE80211_AUTH_NONE:
1464 				LINE_CHECK("%cauthmode NONE", spacer);
1465 				break;
1466 			case IEEE80211_AUTH_OPEN:
1467 				LINE_CHECK("%cauthmode OPEN", spacer);
1468 				break;
1469 			case IEEE80211_AUTH_SHARED:
1470 				LINE_CHECK("%cauthmode SHARED", spacer);
1471 				break;
1472 			case IEEE80211_AUTH_8021X:
1473 				LINE_CHECK("%cauthmode 802.1x", spacer);
1474 				break;
1475 			case IEEE80211_AUTH_WPA:
1476 				ireq.i_type = IEEE80211_IOC_WPA;
1477 				if (ioctl(s, SIOCG80211, &ireq) != -1)
1478 					wpa = ireq.i_val;
1479 				if (!wpa)
1480 					wpa = 1;	/* default to WPA1 */
1481 				switch (wpa) {
1482 				case 2:
1483 					LINE_CHECK("%cauthmode WPA2/802.11i",
1484 						spacer);
1485 					break;
1486 				case 3:
1487 					LINE_CHECK("%cauthmode WPA1+WPA2/802.11i",
1488 						spacer);
1489 					break;
1490 				default:
1491 					LINE_CHECK("%cauthmode WPA", spacer);
1492 					break;
1493 				}
1494 				break;
1495 			case IEEE80211_AUTH_AUTO:
1496 				LINE_CHECK("%cauthmode AUTO", spacer);
1497 				break;
1498 			default:
1499 				LINE_CHECK("%cauthmode UNKNOWN (0x%x)",
1500 					spacer, ireq.i_val);
1501 				break;
1502 		}
1503 	}
1504 
1505 	ireq.i_type = IEEE80211_IOC_WEP;
1506 	if (ioctl(s, SIOCG80211, &ireq) != -1 &&
1507 	    ireq.i_val != IEEE80211_WEP_NOSUP) {
1508 		int firstkey, wepmode;
1509 
1510 		wepmode = ireq.i_val;
1511 		switch (wepmode) {
1512 			case IEEE80211_WEP_OFF:
1513 				LINE_CHECK("%cprivacy OFF", spacer);
1514 				break;
1515 			case IEEE80211_WEP_ON:
1516 				LINE_CHECK("%cprivacy ON", spacer);
1517 				break;
1518 			case IEEE80211_WEP_MIXED:
1519 				LINE_CHECK("%cprivacy MIXED", spacer);
1520 				break;
1521 			default:
1522 				LINE_CHECK("%cprivacy UNKNOWN (0x%x)",
1523 					spacer, wepmode);
1524 				break;
1525 		}
1526 
1527 		/*
1528 		 * If we get here then we've got WEP support so we need
1529 		 * to print WEP status.
1530 		 */
1531 
1532 		ireq.i_type = IEEE80211_IOC_WEPTXKEY;
1533 		if (ioctl(s, SIOCG80211, &ireq) < 0) {
1534 			warn("WEP support, but no tx key!");
1535 			goto end;
1536 		}
1537 		if (ireq.i_val != -1)
1538 			LINE_CHECK("%cdeftxkey %d", spacer, ireq.i_val+1);
1539 		else if (wepmode != IEEE80211_WEP_OFF || verbose)
1540 			LINE_CHECK("%cdeftxkey UNDEF", spacer);
1541 
1542 		ireq.i_type = IEEE80211_IOC_NUMWEPKEYS;
1543 		if (ioctl(s, SIOCG80211, &ireq) < 0) {
1544 			warn("WEP support, but no NUMWEPKEYS support!");
1545 			goto end;
1546 		}
1547 		num = ireq.i_val;
1548 
1549 		firstkey = 1;
1550 		for (i = 0; i < num; i++) {
1551 			struct ieee80211req_key ik;
1552 
1553 			memset(&ik, 0, sizeof(ik));
1554 			ik.ik_keyix = i;
1555 			ireq.i_type = IEEE80211_IOC_WPAKEY;
1556 			ireq.i_data = &ik;
1557 			ireq.i_len = sizeof(ik);
1558 			if (ioctl(s, SIOCG80211, &ireq) < 0) {
1559 				warn("WEP support, but can get keys!");
1560 				goto end;
1561 			}
1562 			if (ik.ik_keylen != 0) {
1563 				if (verbose)
1564 					LINE_BREAK();
1565 				printkey(&ik);
1566 				firstkey = 0;
1567 			}
1568 		}
1569 	}
1570 
1571 	ireq.i_type = IEEE80211_IOC_POWERSAVE;
1572 	if (ioctl(s, SIOCG80211, &ireq) != -1 &&
1573 	    ireq.i_val != IEEE80211_POWERSAVE_NOSUP ) {
1574 		if (ireq.i_val != IEEE80211_POWERSAVE_OFF || verbose) {
1575 			switch (ireq.i_val) {
1576 				case IEEE80211_POWERSAVE_OFF:
1577 					LINE_CHECK("%cpowersavemode OFF",
1578 						spacer);
1579 					break;
1580 				case IEEE80211_POWERSAVE_CAM:
1581 					LINE_CHECK("%cpowersavemode CAM",
1582 						spacer);
1583 					break;
1584 				case IEEE80211_POWERSAVE_PSP:
1585 					LINE_CHECK("%cpowersavemode PSP",
1586 						spacer);
1587 					break;
1588 				case IEEE80211_POWERSAVE_PSP_CAM:
1589 					LINE_CHECK("%cpowersavemode PSP-CAM",
1590 						spacer);
1591 					break;
1592 			}
1593 			ireq.i_type = IEEE80211_IOC_POWERSAVESLEEP;
1594 			if (ioctl(s, SIOCG80211, &ireq) != -1)
1595 				LINE_CHECK("%cpowersavesleep %d",
1596 					spacer, ireq.i_val);
1597 		}
1598 	}
1599 
1600 	ireq.i_type = IEEE80211_IOC_TXPOWMAX;
1601 	if (ioctl(s, SIOCG80211, &ireq) != -1)
1602 		LINE_CHECK("%ctxpowmax %d", spacer, ireq.i_val);
1603 
1604 	if (verbose) {
1605 		ireq.i_type = IEEE80211_IOC_TXPOWER;
1606 		if (ioctl(s, SIOCG80211, &ireq) != -1)
1607 			LINE_CHECK("%ctxpower %d", spacer, ireq.i_val);
1608 	}
1609 
1610 	ireq.i_type = IEEE80211_IOC_RTSTHRESHOLD;
1611 	if (ioctl(s, SIOCG80211, &ireq) != -1) {
1612 		if (ireq.i_val != IEEE80211_RTS_MAX || verbose)
1613 			LINE_CHECK("%crtsthreshold %d", spacer, ireq.i_val);
1614 	}
1615 
1616 	ireq.i_type = IEEE80211_IOC_FRAGTHRESHOLD;
1617 	if (ioctl(s, SIOCG80211, &ireq) != -1) {
1618 		if (ireq.i_val != IEEE80211_FRAG_MAX || verbose)
1619 			LINE_CHECK("%cfragthreshold %d", spacer, ireq.i_val);
1620 	}
1621 
1622 	if (IEEE80211_IS_CHAN_G(c) || IEEE80211_IS_CHAN_PUREG(c) || verbose) {
1623 		ireq.i_type = IEEE80211_IOC_PUREG;
1624 		if (ioctl(s, SIOCG80211, &ireq) != -1) {
1625 			if (ireq.i_val)
1626 				LINE_CHECK("%cpureg", spacer);
1627 			else if (verbose)
1628 				LINE_CHECK("%c-pureg", spacer);
1629 		}
1630 		ireq.i_type = IEEE80211_IOC_PROTMODE;
1631 		if (ioctl(s, SIOCG80211, &ireq) != -1) {
1632 			switch (ireq.i_val) {
1633 				case IEEE80211_PROTMODE_OFF:
1634 					LINE_CHECK("%cprotmode OFF", spacer);
1635 					break;
1636 				case IEEE80211_PROTMODE_CTS:
1637 					LINE_CHECK("%cprotmode CTS", spacer);
1638 					break;
1639 				case IEEE80211_PROTMODE_RTSCTS:
1640 					LINE_CHECK("%cprotmode RTSCTS", spacer);
1641 					break;
1642 				default:
1643 					LINE_CHECK("%cprotmode UNKNOWN (0x%x)",
1644 						spacer, ireq.i_val);
1645 					break;
1646 			}
1647 		}
1648 	}
1649 
1650 	ireq.i_type = IEEE80211_IOC_WME;
1651 	if (ioctl(s, SIOCG80211, &ireq) != -1) {
1652 		wme = ireq.i_val;
1653 		if (wme)
1654 			LINE_CHECK("%cwme", spacer);
1655 		else if (verbose)
1656 			LINE_CHECK("%c-wme", spacer);
1657 	} else
1658 		wme = 0;
1659 
1660 	if (opmode == IEEE80211_M_HOSTAP) {
1661 		ireq.i_type = IEEE80211_IOC_HIDESSID;
1662 		if (ioctl(s, SIOCG80211, &ireq) != -1) {
1663 			if (ireq.i_val)
1664 				LINE_CHECK("%cssid HIDE", spacer);
1665 			else if (verbose)
1666 				LINE_CHECK("%cssid SHOW", spacer);
1667 		}
1668 
1669 		ireq.i_type = IEEE80211_IOC_APBRIDGE;
1670 		if (ioctl(s, SIOCG80211, &ireq) != -1) {
1671 			if (!ireq.i_val)
1672 				LINE_CHECK("%c-apbridge", spacer);
1673 			else if (verbose)
1674 				LINE_CHECK("%capbridge", spacer);
1675 		}
1676 
1677 		ireq.i_type = IEEE80211_IOC_DTIM_PERIOD;
1678 		if (ioctl(s, SIOCG80211, &ireq) != -1)
1679 			LINE_CHECK("%cdtimperiod %u", spacer, ireq.i_val);
1680 	} else {
1681 		ireq.i_type = IEEE80211_IOC_ROAMING;
1682 		if (ioctl(s, SIOCG80211, &ireq) != -1) {
1683 			if (ireq.i_val != IEEE80211_ROAMING_AUTO || verbose) {
1684 				switch (ireq.i_val) {
1685 				case IEEE80211_ROAMING_DEVICE:
1686 					LINE_CHECK("%croaming DEVICE", spacer);
1687 					break;
1688 				case IEEE80211_ROAMING_AUTO:
1689 					LINE_CHECK("%croaming AUTO", spacer);
1690 					break;
1691 				case IEEE80211_ROAMING_MANUAL:
1692 					LINE_CHECK("%croaming MANUAL", spacer);
1693 					break;
1694 				default:
1695 					LINE_CHECK("%croaming UNKNOWN (0x%x)",
1696 						spacer, ireq.i_val);
1697 					break;
1698 				}
1699 			}
1700 		}
1701 	}
1702 	ireq.i_type = IEEE80211_IOC_BEACON_INTERVAL;
1703 	if (ioctl(s, SIOCG80211, &ireq) != -1) {
1704 		if (ireq.i_val)
1705 			LINE_CHECK("%cbintval %u", spacer, ireq.i_val);
1706 		else if (verbose)
1707 			LINE_CHECK("%cbintval %u", spacer, ireq.i_val);
1708 	}
1709 
1710 	if (wme && verbose) {
1711 		LINE_BREAK();
1712 		list_wme(s);
1713 	}
1714 
1715 	if (wpa) {
1716 		ireq.i_type = IEEE80211_IOC_COUNTERMEASURES;
1717 		if (ioctl(s, SIOCG80211, &ireq) != -1) {
1718 			if (ireq.i_val)
1719 				LINE_CHECK("%ccountermeasures", spacer);
1720 			else if (verbose)
1721 				LINE_CHECK("%c-countermeasures", spacer);
1722 		}
1723 #if 0
1724 		/* XXX not interesting with WPA done in user space */
1725 		ireq.i_type = IEEE80211_IOC_KEYMGTALGS;
1726 		if (ioctl(s, SIOCG80211, &ireq) != -1) {
1727 		}
1728 
1729 		ireq.i_type = IEEE80211_IOC_MCASTCIPHER;
1730 		if (ioctl(s, SIOCG80211, &ireq) != -1) {
1731 			printf("%cmcastcipher ", spacer);
1732 			printcipher(s, &ireq, IEEE80211_IOC_MCASTKEYLEN);
1733 			spacer = ' ';
1734 		}
1735 
1736 		ireq.i_type = IEEE80211_IOC_UCASTCIPHER;
1737 		if (ioctl(s, SIOCG80211, &ireq) != -1) {
1738 			printf("%cucastcipher ", spacer);
1739 			printcipher(s, &ireq, IEEE80211_IOC_UCASTKEYLEN);
1740 		}
1741 
1742 		if (wpa & 2) {
1743 			ireq.i_type = IEEE80211_IOC_RSNCAPS;
1744 			if (ioctl(s, SIOCG80211, &ireq) != -1) {
1745 				printf("%cRSN caps 0x%x", spacer, ireq.i_val);
1746 				spacer = ' ';
1747 			}
1748 		}
1749 
1750 		ireq.i_type = IEEE80211_IOC_UCASTCIPHERS;
1751 		if (ioctl(s, SIOCG80211, &ireq) != -1) {
1752 		}
1753 #endif
1754 		LINE_BREAK();
1755 	}
1756 	LINE_BREAK();
1757 
1758 end:
1759 	return;
1760 }
1761 
1762 static void
1763 set80211(int s, int type, int val, int len, u_int8_t *data)
1764 {
1765 	struct ieee80211req	ireq;
1766 
1767 	(void) memset(&ireq, 0, sizeof(ireq));
1768 	(void) strncpy(ireq.i_name, name, sizeof(ireq.i_name));
1769 	ireq.i_type = type;
1770 	ireq.i_val = val;
1771 	ireq.i_len = len;
1772 	ireq.i_data = data;
1773 	if (ioctl(s, SIOCS80211, &ireq) < 0)
1774 		err(1, "SIOCS80211");
1775 }
1776 
1777 static const char *
1778 get_string(const char *val, const char *sep, u_int8_t *buf, int *lenp)
1779 {
1780 	int len;
1781 	int hexstr;
1782 	u_int8_t *p;
1783 
1784 	len = *lenp;
1785 	p = buf;
1786 	hexstr = (val[0] == '0' && tolower((u_char)val[1]) == 'x');
1787 	if (hexstr)
1788 		val += 2;
1789 	for (;;) {
1790 		if (*val == '\0')
1791 			break;
1792 		if (sep != NULL && strchr(sep, *val) != NULL) {
1793 			val++;
1794 			break;
1795 		}
1796 		if (hexstr) {
1797 			if (!isxdigit((u_char)val[0])) {
1798 				warnx("bad hexadecimal digits");
1799 				return NULL;
1800 			}
1801 			if (!isxdigit((u_char)val[1])) {
1802 				warnx("odd count hexadecimal digits");
1803 				return NULL;
1804 			}
1805 		}
1806 		if (p >= buf + len) {
1807 			if (hexstr)
1808 				warnx("hexadecimal digits too long");
1809 			else
1810 				warnx("string too long");
1811 			return NULL;
1812 		}
1813 		if (hexstr) {
1814 #define	tohex(x)	(isdigit(x) ? (x) - '0' : tolower(x) - 'a' + 10)
1815 			*p++ = (tohex((u_char)val[0]) << 4) |
1816 			    tohex((u_char)val[1]);
1817 #undef tohex
1818 			val += 2;
1819 		} else
1820 			*p++ = *val++;
1821 	}
1822 	len = p - buf;
1823 	/* The string "-" is treated as the empty string. */
1824 	if (!hexstr && len == 1 && buf[0] == '-')
1825 		len = 0;
1826 	if (len < *lenp)
1827 		memset(p, 0, *lenp - len);
1828 	*lenp = len;
1829 	return val;
1830 }
1831 
1832 static void
1833 print_string(const u_int8_t *buf, int len)
1834 {
1835 	int i;
1836 	int hasspc;
1837 
1838 	i = 0;
1839 	hasspc = 0;
1840 	for (; i < len; i++) {
1841 		if (!isprint(buf[i]) && buf[i] != '\0')
1842 			break;
1843 		if (isspace(buf[i]))
1844 			hasspc++;
1845 	}
1846 	if (i == len) {
1847 		if (hasspc || len == 0 || buf[0] == '\0')
1848 			printf("\"%.*s\"", len, buf);
1849 		else
1850 			printf("%.*s", len, buf);
1851 	} else {
1852 		printf("0x");
1853 		for (i = 0; i < len; i++)
1854 			printf("%02x", buf[i]);
1855 	}
1856 }
1857 
1858 static struct cmd ieee80211_cmds[] = {
1859 	DEF_CMD_ARG("ssid",		set80211ssid),
1860 	DEF_CMD_ARG("nwid",		set80211ssid),
1861 	DEF_CMD_ARG("stationname",	set80211stationname),
1862 	DEF_CMD_ARG("station",		set80211stationname),	/* BSD/OS */
1863 	DEF_CMD_ARG("channel",		set80211channel),
1864 	DEF_CMD_ARG("authmode",		set80211authmode),
1865 	DEF_CMD_ARG("powersavemode",	set80211powersavemode),
1866 	DEF_CMD("powersave",	1,	set80211powersave),
1867 	DEF_CMD("-powersave",	0,	set80211powersave),
1868 	DEF_CMD_ARG("powersavesleep", 	set80211powersavesleep),
1869 	DEF_CMD_ARG("wepmode",		set80211wepmode),
1870 	DEF_CMD("wep",		1,	set80211wep),
1871 	DEF_CMD("-wep",		0,	set80211wep),
1872 	DEF_CMD_ARG("deftxkey",		set80211weptxkey),
1873 	DEF_CMD_ARG("weptxkey",		set80211weptxkey),
1874 	DEF_CMD_ARG("wepkey",		set80211wepkey),
1875 	DEF_CMD_ARG("nwkey",		set80211nwkey),		/* NetBSD */
1876 	DEF_CMD("-nwkey",	0,	set80211wep),		/* NetBSD */
1877 	DEF_CMD_ARG("rtsthreshold",	set80211rtsthreshold),
1878 	DEF_CMD_ARG("protmode",		set80211protmode),
1879 	DEF_CMD_ARG("txpower",		set80211txpower),
1880 	DEF_CMD_ARG("roaming",		set80211roaming),
1881 	DEF_CMD("wme",		1,	set80211wme),
1882 	DEF_CMD("-wme",		0,	set80211wme),
1883 	DEF_CMD("hidessid",	1,	set80211hidessid),
1884 	DEF_CMD("-hidessid",	0,	set80211hidessid),
1885 	DEF_CMD("apbridge",	1,	set80211apbridge),
1886 	DEF_CMD("-apbridge",	0,	set80211apbridge),
1887 	DEF_CMD_ARG("chanlist",		set80211chanlist),
1888 	DEF_CMD_ARG("bssid",		set80211bssid),
1889 	DEF_CMD_ARG("ap",		set80211bssid),
1890 	DEF_CMD("scan",	0,		set80211scan),
1891 	DEF_CMD_ARG("list",		set80211list),
1892 	DEF_CMD_ARG2("cwmin",		set80211cwmin),
1893 	DEF_CMD_ARG2("cwmax",		set80211cwmax),
1894 	DEF_CMD_ARG2("aifs",		set80211aifs),
1895 	DEF_CMD_ARG2("txoplimit",	set80211txoplimit),
1896 	DEF_CMD_ARG("acm",		set80211acm),
1897 	DEF_CMD_ARG("-acm",		set80211noacm),
1898 	DEF_CMD_ARG("ack",		set80211ackpolicy),
1899 	DEF_CMD_ARG("-ack",		set80211noackpolicy),
1900 	DEF_CMD_ARG2("bss:cwmin",	set80211bsscwmin),
1901 	DEF_CMD_ARG2("bss:cwmax",	set80211bsscwmax),
1902 	DEF_CMD_ARG2("bss:aifs",	set80211bssaifs),
1903 	DEF_CMD_ARG2("bss:txoplimit",	set80211bsstxoplimit),
1904 	DEF_CMD_ARG("dtimperiod",	set80211dtimperiod),
1905 	DEF_CMD_ARG("bintval",		set80211bintval),
1906 	DEF_CMD("mac:open",	IEEE80211_MACCMD_POLICY_OPEN,	set80211maccmd),
1907 	DEF_CMD("mac:allow",	IEEE80211_MACCMD_POLICY_ALLOW,	set80211maccmd),
1908 	DEF_CMD("mac:deny",	IEEE80211_MACCMD_POLICY_DENY,	set80211maccmd),
1909 	DEF_CMD("mac:flush",	IEEE80211_MACCMD_FLUSH,		set80211maccmd),
1910 	DEF_CMD("mac:detach",	IEEE80211_MACCMD_DETACH,	set80211maccmd),
1911 	DEF_CMD_ARG("mac:add",		set80211addmac),
1912 	DEF_CMD_ARG("mac:del",		set80211delmac),
1913 	DEF_CMD_ARG("mac:kick",		set80211kickmac),
1914 	DEF_CMD("pureg",	1,	set80211pureg),
1915 	DEF_CMD("-pureg",	0,	set80211pureg),
1916 	DEF_CMD_ARG("fragthreshold",	set80211fragthreshold),
1917 };
1918 static struct afswtch af_ieee80211 = {
1919 	.af_name	= "af_ieee80211",
1920 	.af_af		= AF_UNSPEC,
1921 	.af_other_status = ieee80211_status,
1922 };
1923 
1924 static __constructor void
1925 ieee80211_ctor(void)
1926 {
1927 #define	N(a)	(sizeof(a) / sizeof(a[0]))
1928 	int i;
1929 
1930 	for (i = 0; i < N(ieee80211_cmds);  i++)
1931 		cmd_register(&ieee80211_cmds[i]);
1932 	af_register(&af_ieee80211);
1933 #undef N
1934 }
1935