2 * iwinfo - Wireless Information Library - Command line frontend
4 * Copyright (C) 2011 Jo-Philipp Wich <xm@subsignal.org>
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.
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.
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/.
24 static char * format_bssid(unsigned char *mac)
28 snprintf(buf, sizeof(buf), "%02X:%02X:%02X:%02X:%02X:%02X",
29 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
34 static char * format_ssid(char *ssid)
36 static char buf[IWINFO_ESSID_MAX_SIZE+3];
39 snprintf(buf, sizeof(buf), "\"%s\"", ssid);
41 snprintf(buf, sizeof(buf), "unknown");
46 static char * format_channel(int ch)
51 snprintf(buf, sizeof(buf), "unknown");
53 snprintf(buf, sizeof(buf), "%d", ch);
58 static char * format_frequency(int freq)
63 snprintf(buf, sizeof(buf), "unknown");
65 snprintf(buf, sizeof(buf), "%.3f GHz", ((float)freq / 1000.0));
70 static char * format_txpower(int pwr)
75 snprintf(buf, sizeof(buf), "unknown");
77 snprintf(buf, sizeof(buf), "%d dBm", pwr);
82 static char * format_quality(int qual)
87 snprintf(buf, sizeof(buf), "unknown");
89 snprintf(buf, sizeof(buf), "%d", qual);
94 static char * format_quality_max(int qmax)
99 snprintf(buf, sizeof(buf), "unknown");
101 snprintf(buf, sizeof(buf), "%d", qmax);
106 static char * format_signal(int sig)
111 snprintf(buf, sizeof(buf), "unknown");
113 snprintf(buf, sizeof(buf), "%d dBm", sig);
118 static char * format_noise(int noise)
123 snprintf(buf, sizeof(buf), "unknown");
125 snprintf(buf, sizeof(buf), "%d dBm", noise);
130 static char * format_rate(int rate)
135 snprintf(buf, sizeof(buf), "unknown");
137 snprintf(buf, sizeof(buf), "%.1f MBit/s", ((float)rate / 1000.0));
142 static char * format_enc_ciphers(int ciphers)
144 static char str[128] = { 0 };
147 if (ciphers & IWINFO_CIPHER_WEP40)
148 pos += sprintf(pos, "WEP-40, ");
150 if (ciphers & IWINFO_CIPHER_WEP104)
151 pos += sprintf(pos, "WEP-104, ");
153 if (ciphers & IWINFO_CIPHER_TKIP)
154 pos += sprintf(pos, "TKIP, ");
156 if (ciphers & IWINFO_CIPHER_CCMP)
157 pos += sprintf(pos, "CCMP, ");
159 if (ciphers & IWINFO_CIPHER_WRAP)
160 pos += sprintf(pos, "WRAP, ");
162 if (ciphers & IWINFO_CIPHER_AESOCB)
163 pos += sprintf(pos, "AES-OCB, ");
165 if (ciphers & IWINFO_CIPHER_CKIP)
166 pos += sprintf(pos, "CKIP, ");
168 if (!ciphers || (ciphers & IWINFO_CIPHER_NONE))
169 pos += sprintf(pos, "NONE, ");
176 static char * format_enc_suites(int suites)
178 static char str[64] = { 0 };
181 if (suites & IWINFO_KMGMT_PSK)
182 pos += sprintf(pos, "PSK/");
184 if (suites & IWINFO_KMGMT_8021x)
185 pos += sprintf(pos, "802.1X/");
187 if (!suites || (suites & IWINFO_KMGMT_NONE))
188 pos += sprintf(pos, "NONE/");
195 static char * format_encryption(struct iwinfo_crypto_entry *c)
197 static char buf[512];
201 snprintf(buf, sizeof(buf), "unknown");
206 if (c->auth_algs && !c->wpa_version)
208 if ((c->auth_algs & IWINFO_AUTH_OPEN) &&
209 (c->auth_algs & IWINFO_AUTH_SHARED))
211 snprintf(buf, sizeof(buf), "WEP Open/Shared (%s)",
212 format_enc_ciphers(c->pair_ciphers));
214 else if (c->auth_algs & IWINFO_AUTH_OPEN)
216 snprintf(buf, sizeof(buf), "WEP Open System (%s)",
217 format_enc_ciphers(c->pair_ciphers));
219 else if (c->auth_algs & IWINFO_AUTH_SHARED)
221 snprintf(buf, sizeof(buf), "WEP Shared Auth (%s)",
222 format_enc_ciphers(c->pair_ciphers));
227 else if (c->wpa_version)
229 switch (c->wpa_version) {
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));
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));
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));
251 snprintf(buf, sizeof(buf), "none");
256 snprintf(buf, sizeof(buf), "none");
262 static char * format_hwmodes(int modes)
267 snprintf(buf, sizeof(buf), "unknown");
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" : "");
279 static const char * print_type(const struct iwinfo_ops *iw, const char *ifname)
281 const char *type = iwinfo_type(ifname);
282 return type ? type : "unknown";
285 static char * print_hardware_id(const struct iwinfo_ops *iw, const char *ifname)
288 struct iwinfo_hardware_id ids;
290 if (!iw->hardware_id(ifname, (char *)&ids))
292 snprintf(buf, sizeof(buf), "%04X:%04X %04X:%04X",
293 ids.vendor_id, ids.device_id,
294 ids.subsystem_vendor_id, ids.subsystem_device_id);
298 snprintf(buf, sizeof(buf), "unknown");
304 static char * print_hardware_name(const struct iwinfo_ops *iw, const char *ifname)
306 static char buf[128];
308 if (iw->hardware_name(ifname, buf))
309 snprintf(buf, sizeof(buf), "unknown");
314 static char * print_txpower_offset(const struct iwinfo_ops *iw, const char *ifname)
319 if (iw->txpower_offset(ifname, &off))
320 snprintf(buf, sizeof(buf), "unknown");
322 snprintf(buf, sizeof(buf), "%d dB", off);
324 snprintf(buf, sizeof(buf), "none");
329 static char * print_frequency_offset(const struct iwinfo_ops *iw, const char *ifname)
334 if (iw->frequency_offset(ifname, &off))
335 snprintf(buf, sizeof(buf), "unknown");
337 snprintf(buf, sizeof(buf), "%.3f GHz", ((float)off / 1000.0));
339 snprintf(buf, sizeof(buf), "none");
344 static char * print_ssid(const struct iwinfo_ops *iw, const char *ifname)
346 char buf[IWINFO_ESSID_MAX_SIZE+1] = { 0 };
348 if (iw->ssid(ifname, buf))
349 memset(buf, 0, sizeof(buf));
351 return format_ssid(buf);
354 static char * print_bssid(const struct iwinfo_ops *iw, const char *ifname)
356 static char buf[18] = { 0 };
358 if (iw->bssid(ifname, buf))
359 snprintf(buf, sizeof(buf), "00:00:00:00:00:00");
364 static char * print_mode(const struct iwinfo_ops *iw, const char *ifname)
366 static char buf[128];
368 if (iw->mode(ifname, buf))
369 snprintf(buf, sizeof(buf), "unknown");
374 static char * print_channel(const struct iwinfo_ops *iw, const char *ifname)
377 if (iw->channel(ifname, &ch))
380 return format_channel(ch);
383 static char * print_frequency(const struct iwinfo_ops *iw, const char *ifname)
386 if (iw->frequency(ifname, &freq))
389 return format_frequency(freq);
392 static char * print_txpower(const struct iwinfo_ops *iw, const char *ifname)
395 if (iw->txpower(ifname, &pwr))
398 return format_txpower(pwr);
401 static char * print_quality(const struct iwinfo_ops *iw, const char *ifname)
404 if (iw->quality(ifname, &qual))
407 return format_quality(qual);
410 static char * print_quality_max(const struct iwinfo_ops *iw, const char *ifname)
413 if (iw->quality_max(ifname, &qmax))
416 return format_quality_max(qmax);
419 static char * print_signal(const struct iwinfo_ops *iw, const char *ifname)
422 if (iw->signal(ifname, &sig))
425 return format_signal(sig);
428 static char * print_noise(const struct iwinfo_ops *iw, const char *ifname)
431 if (iw->noise(ifname, &noise))
434 return format_noise(noise);
437 static char * print_rate(const struct iwinfo_ops *iw, const char *ifname)
440 if (iw->bitrate(ifname, &rate))
443 return format_rate(rate);
446 static char * print_encryption(const struct iwinfo_ops *iw, const char *ifname)
448 struct iwinfo_crypto_entry c = { 0 };
449 if (iw->encryption(ifname, (char *)&c))
450 return format_encryption(NULL);
452 return format_encryption(&c);
455 static char * print_hwmodes(const struct iwinfo_ops *iw, const char *ifname)
458 if (iw->hwmodelist(ifname, &modes))
461 return format_hwmodes(modes);
464 static char * print_mbssid_supp(const struct iwinfo_ops *iw, const char *ifname)
469 if (iw->mbssid_support(ifname, &supp))
470 snprintf(buf, sizeof(buf), "no");
472 snprintf(buf, sizeof(buf), "%s", supp ? "yes" : "no");
478 static void print_info(const struct iwinfo_ops *iw, const char *ifname)
480 printf("%-9s ESSID: %s\n",
482 print_ssid(iw, ifname));
483 printf(" Access Point: %s\n",
484 print_bssid(iw, ifname));
485 printf(" Mode: %s Channel: %s (%s)\n",
486 print_mode(iw, ifname),
487 print_channel(iw, ifname),
488 print_frequency(iw, ifname));
489 printf(" Tx-Power: %s Link Quality: %s/%s\n",
490 print_txpower(iw, ifname),
491 print_quality(iw, ifname),
492 print_quality_max(iw, ifname));
493 printf(" Signal: %s Noise: %s\n",
494 print_signal(iw, ifname),
495 print_noise(iw, ifname));
496 printf(" Bit Rate: %s\n",
497 print_rate(iw, ifname));
498 printf(" Encryption: %s\n",
499 print_encryption(iw, ifname));
500 printf(" Type: %s HW Mode(s): %s\n",
501 print_type(iw, ifname),
502 print_hwmodes(iw, ifname));
503 printf(" Hardware: %s [%s]\n",
504 print_hardware_id(iw, ifname),
505 print_hardware_name(iw, ifname));
506 printf(" TX power offset: %s\n",
507 print_txpower_offset(iw, ifname));
508 printf(" Frequency offset: %s\n",
509 print_frequency_offset(iw, ifname));
510 printf(" Supports VAPs: %s\n",
511 print_mbssid_supp(iw, ifname));
515 static void print_scanlist(const struct iwinfo_ops *iw, const char *ifname)
518 char buf[IWINFO_BUFSIZE];
519 struct iwinfo_scanlist_entry *e;
521 if (iw->scanlist(ifname, buf, &len))
523 printf("Scanning not possible\n\n");
528 printf("No scan results\n\n");
532 for (i = 0, x = 1; i < len; i += sizeof(struct iwinfo_scanlist_entry), x++)
534 e = (struct iwinfo_scanlist_entry *) &buf[i];
536 printf("Cell %02d - Address: %s\n",
538 format_bssid(e->mac));
539 printf(" ESSID: %s\n",
540 format_ssid(e->ssid));
541 printf(" Mode: %s Channel: %s\n",
542 e->mode ? (char *)e->mode : "unknown",
543 format_channel(e->channel));
544 printf(" Signal: %s Quality: %s/%s\n",
545 format_signal(e->signal - 0x100),
546 format_quality(e->quality),
547 format_quality_max(e->quality_max));
548 printf(" Encryption: %s\n\n",
549 format_encryption(&e->crypto));
554 static void print_txpwrlist(const struct iwinfo_ops *iw, const char *ifname)
556 int len, pwr, off, i;
557 char buf[IWINFO_BUFSIZE];
558 struct iwinfo_txpwrlist_entry *e;
560 if (iw->txpwrlist(ifname, buf, &len) || len <= 0)
562 printf("No TX power information available\n");
566 if (iw->txpower(ifname, &pwr))
569 if (iw->txpower_offset(ifname, &off))
572 for (i = 0; i < len; i += sizeof(struct iwinfo_txpwrlist_entry))
574 e = (struct iwinfo_txpwrlist_entry *) &buf[i];
576 printf("%s%3d dBm (%4d mW)\n",
577 (pwr == e->dbm) ? "*" : " ",
579 iwinfo_dbm2mw(e->dbm + off));
584 static void print_freqlist(const struct iwinfo_ops *iw, const char *ifname)
587 char buf[IWINFO_BUFSIZE];
588 struct iwinfo_freqlist_entry *e;
590 if (iw->freqlist(ifname, buf, &len) || len <= 0)
592 printf("No frequency information available\n");
596 if (iw->channel(ifname, &ch))
599 for (i = 0; i < len; i += sizeof(struct iwinfo_freqlist_entry))
601 e = (struct iwinfo_freqlist_entry *) &buf[i];
603 printf("%s %s (Channel %s)%s\n",
604 (ch == e->channel) ? "*" : " ",
605 format_frequency(e->mhz),
606 format_channel(e->channel),
607 e->restricted ? " [restricted]" : "");
612 static void print_assoclist(const struct iwinfo_ops *iw, const char *ifname)
615 char buf[IWINFO_BUFSIZE];
616 struct iwinfo_assoclist_entry *e;
618 if (iw->assoclist(ifname, buf, &len))
620 printf("No information available\n");
625 printf("No station connected\n");
629 for (i = 0; i < len; i += sizeof(struct iwinfo_assoclist_entry))
631 e = (struct iwinfo_assoclist_entry *) &buf[i];
633 printf("%s %s / %s (SNR %d)\n",
634 format_bssid(e->mac),
635 format_signal(e->signal),
636 format_noise(e->noise),
637 (e->signal - e->noise));
642 static char * lookup_country(char *buf, int len, int iso3166)
645 struct iwinfo_country_entry *c;
647 for (i = 0; i < len; i += sizeof(struct iwinfo_country_entry))
649 c = (struct iwinfo_country_entry *) &buf[i];
651 if (c->iso3166 == iso3166)
658 static void print_countrylist(const struct iwinfo_ops *iw, const char *ifname)
661 char buf[IWINFO_BUFSIZE];
664 const struct iwinfo_iso3166_label *l;
666 if (iw->countrylist(ifname, buf, &len))
668 printf("No country code information available\n");
672 if (iw->country(ifname, curcode))
673 memset(curcode, 0, sizeof(curcode));
675 for (l = IWINFO_ISO3166_NAMES; l->iso3166; l++)
677 if ((ccode = lookup_country(buf, len, l->iso3166)) != NULL)
679 printf("%s %4s %c%c\n",
680 strncmp(ccode, curcode, 2) ? " " : "*",
681 ccode, (l->iso3166 / 256), (l->iso3166 % 256));
687 int main(int argc, char **argv)
690 const struct iwinfo_ops *iw;
696 " iwinfo <device> info\n"
697 " iwinfo <device> scan\n"
698 " iwinfo <device> txpowerlist\n"
699 " iwinfo <device> freqlist\n"
700 " iwinfo <device> assoclist\n"
701 " iwinfo <device> countrylist\n"
707 iw = iwinfo_backend(argv[1]);
711 fprintf(stderr, "No such wireless device: %s\n", argv[1]);
715 for (i = 2; i < argc; i++)
720 print_info(iw, argv[1]);
724 print_scanlist(iw, argv[1]);
728 print_txpwrlist(iw, argv[1]);
732 print_freqlist(iw, argv[1]);
736 print_assoclist(iw, argv[1]);
740 print_countrylist(iw, argv[1]);
744 fprintf(stderr, "Unknown command: %s\n", argv[i]);