[package] add libiwinfo (moved from LuCI trunk)
[openwrt/svn-archive/archive.git] / package / iwinfo / src / iwinfo_cli.c
1 /*
2 * iwinfo - Wireless Information Library - Command line frontend
3 *
4 * Copyright (C) 2011 Jo-Philipp Wich <xm@subsignal.org>
5 *
6 * The iwinfo library is free software: you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License version 2
8 * as published by the Free Software Foundation.
9 *
10 * The iwinfo library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 * See the GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with the iwinfo library. If not, see http://www.gnu.org/licenses/.
17 */
18
19 #include <stdio.h>
20
21 #include "iwinfo.h"
22
23
24 static char * format_bssid(unsigned char *mac)
25 {
26 static char buf[18];
27
28 snprintf(buf, sizeof(buf), "%02X:%02X:%02X:%02X:%02X:%02X",
29 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
30
31 return buf;
32 }
33
34 static char * format_ssid(char *ssid)
35 {
36 static char buf[IWINFO_ESSID_MAX_SIZE+3];
37
38 if (ssid && ssid[0])
39 snprintf(buf, sizeof(buf), "\"%s\"", ssid);
40 else
41 snprintf(buf, sizeof(buf), "unknown");
42
43 return buf;
44 }
45
46 static char * format_channel(int ch)
47 {
48 static char buf[8];
49
50 if (ch <= 0)
51 snprintf(buf, sizeof(buf), "unknown");
52 else
53 snprintf(buf, sizeof(buf), "%d", ch);
54
55 return buf;
56 }
57
58 static char * format_frequency(int freq)
59 {
60 static char buf[10];
61
62 if (freq <= 0)
63 snprintf(buf, sizeof(buf), "unknown");
64 else
65 snprintf(buf, sizeof(buf), "%.3f GHz", ((float)freq / 1000.0));
66
67 return buf;
68 }
69
70 static char * format_txpower(int pwr)
71 {
72 static char buf[10];
73
74 if (pwr < 0)
75 snprintf(buf, sizeof(buf), "unknown");
76 else
77 snprintf(buf, sizeof(buf), "%d dBm", pwr);
78
79 return buf;
80 }
81
82 static char * format_quality(int qual)
83 {
84 static char buf[8];
85
86 if (qual < 0)
87 snprintf(buf, sizeof(buf), "unknown");
88 else
89 snprintf(buf, sizeof(buf), "%d", qual);
90
91 return buf;
92 }
93
94 static char * format_quality_max(int qmax)
95 {
96 static char buf[8];
97
98 if (qmax < 0)
99 snprintf(buf, sizeof(buf), "unknown");
100 else
101 snprintf(buf, sizeof(buf), "%d", qmax);
102
103 return buf;
104 }
105
106 static char * format_signal(int sig)
107 {
108 static char buf[10];
109
110 if (!sig)
111 snprintf(buf, sizeof(buf), "unknown");
112 else
113 snprintf(buf, sizeof(buf), "%d dBm", sig);
114
115 return buf;
116 }
117
118 static char * format_noise(int noise)
119 {
120 static char buf[10];
121
122 if (!noise)
123 snprintf(buf, sizeof(buf), "unknown");
124 else
125 snprintf(buf, sizeof(buf), "%d dBm", noise);
126
127 return buf;
128 }
129
130 static char * format_rate(int rate)
131 {
132 static char buf[14];
133
134 if (rate <= 0)
135 snprintf(buf, sizeof(buf), "unknown");
136 else
137 snprintf(buf, sizeof(buf), "%.1f MBit/s", ((float)rate / 1000.0));
138
139 return buf;
140 }
141
142 static char * format_enc_ciphers(int ciphers)
143 {
144 static char str[128] = { 0 };
145 char *pos = str;
146
147 if (ciphers & IWINFO_CIPHER_WEP40)
148 pos += sprintf(pos, "WEP-40, ");
149
150 if (ciphers & IWINFO_CIPHER_WEP104)
151 pos += sprintf(pos, "WEP-104, ");
152
153 if (ciphers & IWINFO_CIPHER_TKIP)
154 pos += sprintf(pos, "TKIP, ");
155
156 if (ciphers & IWINFO_CIPHER_CCMP)
157 pos += sprintf(pos, "CCMP, ");
158
159 if (ciphers & IWINFO_CIPHER_WRAP)
160 pos += sprintf(pos, "WRAP, ");
161
162 if (ciphers & IWINFO_CIPHER_AESOCB)
163 pos += sprintf(pos, "AES-OCB, ");
164
165 if (ciphers & IWINFO_CIPHER_CKIP)
166 pos += sprintf(pos, "CKIP, ");
167
168 if (!ciphers || (ciphers & IWINFO_CIPHER_NONE))
169 pos += sprintf(pos, "NONE, ");
170
171 *(pos - 2) = 0;
172
173 return str;
174 }
175
176 static char * format_enc_suites(int suites)
177 {
178 static char str[64] = { 0 };
179 char *pos = str;
180
181 if (suites & IWINFO_KMGMT_PSK)
182 pos += sprintf(pos, "PSK/");
183
184 if (suites & IWINFO_KMGMT_8021x)
185 pos += sprintf(pos, "802.1X/");
186
187 if (!suites || (suites & IWINFO_KMGMT_NONE))
188 pos += sprintf(pos, "NONE/");
189
190 *(pos - 1) = 0;
191
192 return str;
193 }
194
195 static char * format_encryption(struct iwinfo_crypto_entry *c)
196 {
197 static char buf[512];
198
199 if (!c)
200 {
201 snprintf(buf, sizeof(buf), "unknown");
202 }
203 else if (c->enabled)
204 {
205 /* WEP */
206 if (c->auth_algs && !c->wpa_version)
207 {
208 if ((c->auth_algs & IWINFO_AUTH_OPEN) &&
209 (c->auth_algs & IWINFO_AUTH_SHARED))
210 {
211 snprintf(buf, sizeof(buf), "WEP Open/Shared (%s)",
212 format_enc_ciphers(c->pair_ciphers));
213 }
214 else if (c->auth_algs & IWINFO_AUTH_OPEN)
215 {
216 snprintf(buf, sizeof(buf), "WEP Open System (%s)",
217 format_enc_ciphers(c->pair_ciphers));
218 }
219 else if (c->auth_algs & IWINFO_AUTH_SHARED)
220 {
221 snprintf(buf, sizeof(buf), "WEP Shared Auth (%s)",
222 format_enc_ciphers(c->pair_ciphers));
223 }
224 }
225
226 /* WPA */
227 else if (c->wpa_version)
228 {
229 switch (c->wpa_version) {
230 case 3:
231 snprintf(buf, sizeof(buf), "mixed WPA/WPA2 %s (%s)",
232 format_enc_suites(c->auth_suites),
233 format_enc_ciphers(c->pair_ciphers & c->group_ciphers));
234 break;
235
236 case 2:
237 snprintf(buf, sizeof(buf), "WPA2 %s (%s)",
238 format_enc_suites(c->auth_suites),
239 format_enc_ciphers(c->pair_ciphers & c->group_ciphers));
240 break;
241
242 case 1:
243 snprintf(buf, sizeof(buf), "WPA %s (%s)",
244 format_enc_suites(c->auth_suites),
245 format_enc_ciphers(c->pair_ciphers & c->group_ciphers));
246 break;
247 }
248 }
249 else
250 {
251 snprintf(buf, sizeof(buf), "none");
252 }
253 }
254 else
255 {
256 snprintf(buf, sizeof(buf), "none");
257 }
258
259 return buf;
260 }
261
262 static char * format_hwmodes(int modes)
263 {
264 static char buf[12];
265
266 if (modes <= 0)
267 snprintf(buf, sizeof(buf), "unknown");
268 else
269 snprintf(buf, sizeof(buf), "802.11%s%s%s%s",
270 (modes & IWINFO_80211_A) ? "a" : "",
271 (modes & IWINFO_80211_B) ? "b" : "",
272 (modes & IWINFO_80211_G) ? "g" : "",
273 (modes & IWINFO_80211_N) ? "n" : "");
274
275 return buf;
276 }
277
278
279 static const char * print_type(const struct iwinfo_ops *iw, const char *ifname)
280 {
281 const char *type = iwinfo_type(ifname);
282 return type ? type : "unknown";
283 }
284
285 static char * print_ssid(const struct iwinfo_ops *iw, const char *ifname)
286 {
287 char buf[IWINFO_ESSID_MAX_SIZE+1] = { 0 };
288
289 if (iw->ssid(ifname, buf))
290 memset(buf, 0, sizeof(buf));
291
292 return format_ssid(buf);
293 }
294
295 static char * print_bssid(const struct iwinfo_ops *iw, const char *ifname)
296 {
297 static char buf[18] = { 0 };
298
299 if (iw->bssid(ifname, buf))
300 snprintf(buf, sizeof(buf), "00:00:00:00:00:00");
301
302 return buf;
303 }
304
305 static char * print_mode(const struct iwinfo_ops *iw, const char *ifname)
306 {
307 static char buf[128];
308
309 if (iw->mode(ifname, buf))
310 snprintf(buf, sizeof(buf), "unknown");
311
312 return buf;
313 }
314
315 static char * print_channel(const struct iwinfo_ops *iw, const char *ifname)
316 {
317 int ch;
318 if (iw->channel(ifname, &ch))
319 ch = -1;
320
321 return format_channel(ch);
322 }
323
324 static char * print_frequency(const struct iwinfo_ops *iw, const char *ifname)
325 {
326 int freq;
327 if (iw->frequency(ifname, &freq))
328 freq = -1;
329
330 return format_frequency(freq);
331 }
332
333 static char * print_txpower(const struct iwinfo_ops *iw, const char *ifname)
334 {
335 int pwr;
336 if (iw->txpower(ifname, &pwr))
337 pwr = -1;
338
339 return format_txpower(pwr);
340 }
341
342 static char * print_quality(const struct iwinfo_ops *iw, const char *ifname)
343 {
344 int qual;
345 if (iw->quality(ifname, &qual))
346 qual = -1;
347
348 return format_quality(qual);
349 }
350
351 static char * print_quality_max(const struct iwinfo_ops *iw, const char *ifname)
352 {
353 int qmax;
354 if (iw->quality_max(ifname, &qmax))
355 qmax = -1;
356
357 return format_quality_max(qmax);
358 }
359
360 static char * print_signal(const struct iwinfo_ops *iw, const char *ifname)
361 {
362 int sig;
363 if (iw->signal(ifname, &sig))
364 sig = 0;
365
366 return format_signal(sig);
367 }
368
369 static char * print_noise(const struct iwinfo_ops *iw, const char *ifname)
370 {
371 int noise;
372 if (iw->noise(ifname, &noise))
373 noise = 0;
374
375 return format_noise(noise);
376 }
377
378 static char * print_rate(const struct iwinfo_ops *iw, const char *ifname)
379 {
380 int rate;
381 if (iw->bitrate(ifname, &rate))
382 rate = -1;
383
384 return format_rate(rate);
385 }
386
387 static char * print_encryption(const struct iwinfo_ops *iw, const char *ifname)
388 {
389 struct iwinfo_crypto_entry c = { 0 };
390 if (iw->encryption(ifname, (char *)&c))
391 return format_encryption(NULL);
392
393 return format_encryption(&c);
394 }
395
396 static char * print_hwmodes(const struct iwinfo_ops *iw, const char *ifname)
397 {
398 int modes;
399 if (iw->hwmodelist(ifname, &modes))
400 modes = -1;
401
402 return format_hwmodes(modes);
403 }
404
405 static char * print_mbssid_supp(const struct iwinfo_ops *iw, const char *ifname)
406 {
407 int supp;
408 static char buf[4];
409
410 if (iw->mbssid_support(ifname, &supp))
411 snprintf(buf, sizeof(buf), "no");
412 else
413 snprintf(buf, sizeof(buf), "%s", supp ? "yes" : "no");
414
415 return buf;
416 }
417
418
419 static void print_info(const struct iwinfo_ops *iw, const char *ifname)
420 {
421 printf("%-9s ESSID: %s\n",
422 ifname,
423 print_ssid(iw, ifname));
424 printf(" Access Point: %s\n",
425 print_bssid(iw, ifname));
426 printf(" Type: %s HW Mode(s): %s\n",
427 print_type(iw, ifname),
428 print_hwmodes(iw, ifname));
429 printf(" Mode: %s Channel: %s (%s)\n",
430 print_mode(iw, ifname),
431 print_channel(iw, ifname),
432 print_frequency(iw, ifname));
433 printf(" Tx-Power: %s Link Quality: %s/%s\n",
434 print_txpower(iw, ifname),
435 print_quality(iw, ifname),
436 print_quality_max(iw, ifname));
437 printf(" Signal: %s Noise: %s\n",
438 print_signal(iw, ifname),
439 print_noise(iw, ifname));
440 printf(" Bit Rate: %s\n",
441 print_rate(iw, ifname));
442 printf(" Encryption: %s\n",
443 print_encryption(iw, ifname));
444 printf(" Supports VAPs: %s\n",
445 print_mbssid_supp(iw, ifname));
446 }
447
448
449 static void print_scanlist(const struct iwinfo_ops *iw, const char *ifname)
450 {
451 int i, x, len;
452 char buf[IWINFO_BUFSIZE];
453 struct iwinfo_scanlist_entry *e;
454
455 if (iw->scanlist(ifname, buf, &len))
456 {
457 printf("Scanning not possible\n\n");
458 return;
459 }
460 else if (len <= 0)
461 {
462 printf("No scan results\n\n");
463 return;
464 }
465
466 for (i = 0, x = 1; i < len; i += sizeof(struct iwinfo_scanlist_entry), x++)
467 {
468 e = (struct iwinfo_scanlist_entry *) &buf[i];
469
470 printf("Cell %02d - Address: %s\n",
471 x,
472 format_bssid(e->mac));
473 printf(" ESSID: %s\n",
474 format_ssid(e->ssid));
475 printf(" Mode: %s Channel: %s\n",
476 e->mode ? (char *)e->mode : "unknown",
477 format_channel(e->channel));
478 printf(" Signal: %s Quality: %s/%s\n",
479 format_signal(e->signal - 0x100),
480 format_quality(e->quality),
481 format_quality_max(e->quality_max));
482 printf(" Encryption: %s\n\n",
483 format_encryption(&e->crypto));
484 }
485 }
486
487
488 static void print_txpwrlist(const struct iwinfo_ops *iw, const char *ifname)
489 {
490 int len, pwr, i;
491 char buf[IWINFO_BUFSIZE];
492 struct iwinfo_txpwrlist_entry *e;
493
494 if (iw->txpwrlist(ifname, buf, &len) || len <= 0)
495 {
496 printf("No TX power information available\n");
497 return;
498 }
499
500 if (iw->txpower(ifname, &pwr))
501 pwr = -1;
502
503 for (i = 0; i < len; i += sizeof(struct iwinfo_txpwrlist_entry))
504 {
505 e = (struct iwinfo_txpwrlist_entry *) &buf[i];
506
507 printf("%s%3d dBm (%4d mW)\n",
508 (pwr == e->dbm) ? "*" : " ",
509 e->dbm,
510 e->mw);
511 }
512 }
513
514
515 static void print_freqlist(const struct iwinfo_ops *iw, const char *ifname)
516 {
517 int i, len, ch;
518 char buf[IWINFO_BUFSIZE];
519 struct iwinfo_freqlist_entry *e;
520
521 if (iw->freqlist(ifname, buf, &len) || len <= 0)
522 {
523 printf("No frequency information available\n");
524 return;
525 }
526
527 if (iw->channel(ifname, &ch))
528 ch = -1;
529
530 for (i = 0; i < len; i += sizeof(struct iwinfo_freqlist_entry))
531 {
532 e = (struct iwinfo_freqlist_entry *) &buf[i];
533
534 printf("%s %s (Channel %s)%s\n",
535 (ch == e->channel) ? "*" : " ",
536 format_frequency(e->mhz),
537 format_channel(e->channel),
538 e->restricted ? " [restricted]" : "");
539 }
540 }
541
542
543 static void print_assoclist(const struct iwinfo_ops *iw, const char *ifname)
544 {
545 int i, len;
546 char buf[IWINFO_BUFSIZE];
547 struct iwinfo_assoclist_entry *e;
548
549 if (iw->assoclist(ifname, buf, &len))
550 {
551 printf("No information available\n");
552 return;
553 }
554 else if (len <= 0)
555 {
556 printf("No station connected\n");
557 return;
558 }
559
560 for (i = 0; i < len; i += sizeof(struct iwinfo_assoclist_entry))
561 {
562 e = (struct iwinfo_assoclist_entry *) &buf[i];
563
564 printf("%s %s / %s (SNR %d)\n",
565 format_bssid(e->mac),
566 format_signal(e->signal),
567 format_noise(e->noise),
568 (e->signal - e->noise));
569 }
570 }
571
572
573 static char * lookup_country(char *buf, int len, int iso3166)
574 {
575 int i;
576 struct iwinfo_country_entry *c;
577
578 for (i = 0; i < len; i += sizeof(struct iwinfo_country_entry))
579 {
580 c = (struct iwinfo_country_entry *) &buf[i];
581
582 if (c->iso3166 == iso3166)
583 return c->ccode;
584 }
585
586 return NULL;
587 }
588
589 static void print_countrylist(const struct iwinfo_ops *iw, const char *ifname)
590 {
591 int len;
592 char buf[IWINFO_BUFSIZE];
593 char *ccode;
594 char curcode[3];
595 const struct iwinfo_iso3166_label *l;
596
597 if (iw->countrylist(ifname, buf, &len))
598 {
599 printf("No country code information available\n");
600 return;
601 }
602
603 if (iw->country(ifname, curcode))
604 memset(curcode, 0, sizeof(curcode));
605
606 for (l = IWINFO_ISO3166_NAMES; l->iso3166; l++)
607 {
608 if ((ccode = lookup_country(buf, len, l->iso3166)) != NULL)
609 {
610 printf("%s %4s %c%c\n",
611 strncmp(ccode, curcode, 2) ? " " : "*",
612 ccode, (l->iso3166 / 256), (l->iso3166 % 256));
613 }
614 }
615 }
616
617
618 int main(int argc, char **argv)
619 {
620 int i;
621 const struct iwinfo_ops *iw;
622
623 if (argc < 3)
624 {
625 fprintf(stderr,
626 "Usage:\n"
627 " iwinfo <device> info\n"
628 " iwinfo <device> scan\n"
629 " iwinfo <device> txpowerlist\n"
630 " iwinfo <device> freqlist\n"
631 " iwinfo <device> assoclist\n"
632 " iwinfo <device> countrylist\n"
633 );
634
635 return 1;
636 }
637
638 iw = iwinfo_backend(argv[1]);
639
640 if (!iw)
641 {
642 fprintf(stderr, "No such wireless device: %s\n", argv[1]);
643 return 1;
644 }
645
646 for (i = 2; i < argc; i++)
647 {
648 switch(argv[i][0])
649 {
650 case 'i':
651 print_info(iw, argv[1]);
652 break;
653
654 case 's':
655 print_scanlist(iw, argv[1]);
656 break;
657
658 case 't':
659 print_txpwrlist(iw, argv[1]);
660 break;
661
662 case 'f':
663 print_freqlist(iw, argv[1]);
664 break;
665
666 case 'a':
667 print_assoclist(iw, argv[1]);
668 break;
669
670 case 'c':
671 print_countrylist(iw, argv[1]);
672 break;
673
674 default:
675 fprintf(stderr, "Unknown command: %s\n", argv[i]);
676 return 1;
677 }
678 }
679
680 iwinfo_finish();
681
682 return 0;
683 }