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), "%d.%d MBit/s",
138 rate / 1000, (rate % 1000) / 100);
143 static char * format_enc_ciphers(int ciphers)
145 static char str[128] = { 0 };
148 if (ciphers & IWINFO_CIPHER_WEP40)
149 pos += sprintf(pos, "WEP-40, ");
151 if (ciphers & IWINFO_CIPHER_WEP104)
152 pos += sprintf(pos, "WEP-104, ");
154 if (ciphers & IWINFO_CIPHER_TKIP)
155 pos += sprintf(pos, "TKIP, ");
157 if (ciphers & IWINFO_CIPHER_CCMP)
158 pos += sprintf(pos, "CCMP, ");
160 if (ciphers & IWINFO_CIPHER_WRAP)
161 pos += sprintf(pos, "WRAP, ");
163 if (ciphers & IWINFO_CIPHER_AESOCB)
164 pos += sprintf(pos, "AES-OCB, ");
166 if (ciphers & IWINFO_CIPHER_CKIP)
167 pos += sprintf(pos, "CKIP, ");
169 if (!ciphers || (ciphers & IWINFO_CIPHER_NONE))
170 pos += sprintf(pos, "NONE, ");
177 static char * format_enc_suites(int suites)
179 static char str[64] = { 0 };
182 if (suites & IWINFO_KMGMT_PSK)
183 pos += sprintf(pos, "PSK/");
185 if (suites & IWINFO_KMGMT_8021x)
186 pos += sprintf(pos, "802.1X/");
188 if (!suites || (suites & IWINFO_KMGMT_NONE))
189 pos += sprintf(pos, "NONE/");
196 static char * format_encryption(struct iwinfo_crypto_entry *c)
198 static char buf[512];
202 snprintf(buf, sizeof(buf), "unknown");
207 if (c->auth_algs && !c->wpa_version)
209 if ((c->auth_algs & IWINFO_AUTH_OPEN) &&
210 (c->auth_algs & IWINFO_AUTH_SHARED))
212 snprintf(buf, sizeof(buf), "WEP Open/Shared (%s)",
213 format_enc_ciphers(c->pair_ciphers));
215 else if (c->auth_algs & IWINFO_AUTH_OPEN)
217 snprintf(buf, sizeof(buf), "WEP Open System (%s)",
218 format_enc_ciphers(c->pair_ciphers));
220 else if (c->auth_algs & IWINFO_AUTH_SHARED)
222 snprintf(buf, sizeof(buf), "WEP Shared Auth (%s)",
223 format_enc_ciphers(c->pair_ciphers));
228 else if (c->wpa_version)
230 switch (c->wpa_version) {
232 snprintf(buf, sizeof(buf), "mixed WPA/WPA2 %s (%s)",
233 format_enc_suites(c->auth_suites),
234 format_enc_ciphers(c->pair_ciphers | c->group_ciphers));
238 snprintf(buf, sizeof(buf), "WPA2 %s (%s)",
239 format_enc_suites(c->auth_suites),
240 format_enc_ciphers(c->pair_ciphers | c->group_ciphers));
244 snprintf(buf, sizeof(buf), "WPA %s (%s)",
245 format_enc_suites(c->auth_suites),
246 format_enc_ciphers(c->pair_ciphers | c->group_ciphers));
252 snprintf(buf, sizeof(buf), "none");
257 snprintf(buf, sizeof(buf), "none");
263 static char * format_hwmodes(int modes)
268 snprintf(buf, sizeof(buf), "unknown");
270 snprintf(buf, sizeof(buf), "802.11%s%s%s%s",
271 (modes & IWINFO_80211_A) ? "a" : "",
272 (modes & IWINFO_80211_B) ? "b" : "",
273 (modes & IWINFO_80211_G) ? "g" : "",
274 (modes & IWINFO_80211_N) ? "n" : "");
279 static char * format_assocrate(struct iwinfo_rate_entry *r)
287 snprintf(buf, sizeof(buf), "unknown");
291 p += snprintf(p, l, "%s", format_rate(r->rate));
292 l = sizeof(buf) - (p - buf);
296 p += snprintf(p, l, ", MCS %d, %dMHz", r->mcs, 20 + r->is_40mhz*20);
297 l = sizeof(buf) - (p - buf);
300 p += snprintf(p, l, ", short GI");
308 static const char * print_type(const struct iwinfo_ops *iw, const char *ifname)
310 const char *type = iwinfo_type(ifname);
311 return type ? type : "unknown";
314 static char * print_hardware_id(const struct iwinfo_ops *iw, const char *ifname)
317 struct iwinfo_hardware_id ids;
319 if (!iw->hardware_id(ifname, (char *)&ids))
321 snprintf(buf, sizeof(buf), "%04X:%04X %04X:%04X",
322 ids.vendor_id, ids.device_id,
323 ids.subsystem_vendor_id, ids.subsystem_device_id);
327 snprintf(buf, sizeof(buf), "unknown");
333 static char * print_hardware_name(const struct iwinfo_ops *iw, const char *ifname)
335 static char buf[128];
337 if (iw->hardware_name(ifname, buf))
338 snprintf(buf, sizeof(buf), "unknown");
343 static char * print_txpower_offset(const struct iwinfo_ops *iw, const char *ifname)
348 if (iw->txpower_offset(ifname, &off))
349 snprintf(buf, sizeof(buf), "unknown");
351 snprintf(buf, sizeof(buf), "%d dB", off);
353 snprintf(buf, sizeof(buf), "none");
358 static char * print_frequency_offset(const struct iwinfo_ops *iw, const char *ifname)
363 if (iw->frequency_offset(ifname, &off))
364 snprintf(buf, sizeof(buf), "unknown");
366 snprintf(buf, sizeof(buf), "%.3f GHz", ((float)off / 1000.0));
368 snprintf(buf, sizeof(buf), "none");
373 static char * print_ssid(const struct iwinfo_ops *iw, const char *ifname)
375 char buf[IWINFO_ESSID_MAX_SIZE+1] = { 0 };
377 if (iw->ssid(ifname, buf))
378 memset(buf, 0, sizeof(buf));
380 return format_ssid(buf);
383 static char * print_bssid(const struct iwinfo_ops *iw, const char *ifname)
385 static char buf[18] = { 0 };
387 if (iw->bssid(ifname, buf))
388 snprintf(buf, sizeof(buf), "00:00:00:00:00:00");
393 static char * print_mode(const struct iwinfo_ops *iw, const char *ifname)
396 static char buf[128];
398 if (iw->mode(ifname, &mode))
399 mode = IWINFO_OPMODE_UNKNOWN;
401 snprintf(buf, sizeof(buf), "%s", IWINFO_OPMODE_NAMES[mode]);
406 static char * print_channel(const struct iwinfo_ops *iw, const char *ifname)
409 if (iw->channel(ifname, &ch))
412 return format_channel(ch);
415 static char * print_frequency(const struct iwinfo_ops *iw, const char *ifname)
418 if (iw->frequency(ifname, &freq))
421 return format_frequency(freq);
424 static char * print_txpower(const struct iwinfo_ops *iw, const char *ifname)
427 if (iw->txpower_offset(ifname, &off))
430 if (iw->txpower(ifname, &pwr))
435 return format_txpower(pwr);
438 static char * print_quality(const struct iwinfo_ops *iw, const char *ifname)
441 if (iw->quality(ifname, &qual))
444 return format_quality(qual);
447 static char * print_quality_max(const struct iwinfo_ops *iw, const char *ifname)
450 if (iw->quality_max(ifname, &qmax))
453 return format_quality_max(qmax);
456 static char * print_signal(const struct iwinfo_ops *iw, const char *ifname)
459 if (iw->signal(ifname, &sig))
462 return format_signal(sig);
465 static char * print_noise(const struct iwinfo_ops *iw, const char *ifname)
468 if (iw->noise(ifname, &noise))
471 return format_noise(noise);
474 static char * print_rate(const struct iwinfo_ops *iw, const char *ifname)
477 if (iw->bitrate(ifname, &rate))
480 return format_rate(rate);
483 static char * print_encryption(const struct iwinfo_ops *iw, const char *ifname)
485 struct iwinfo_crypto_entry c = { 0 };
486 if (iw->encryption(ifname, (char *)&c))
487 return format_encryption(NULL);
489 return format_encryption(&c);
492 static char * print_hwmodes(const struct iwinfo_ops *iw, const char *ifname)
495 if (iw->hwmodelist(ifname, &modes))
498 return format_hwmodes(modes);
501 static char * print_mbssid_supp(const struct iwinfo_ops *iw, const char *ifname)
506 if (iw->mbssid_support(ifname, &supp))
507 snprintf(buf, sizeof(buf), "no");
509 snprintf(buf, sizeof(buf), "%s", supp ? "yes" : "no");
515 static void print_info(const struct iwinfo_ops *iw, const char *ifname)
517 printf("%-9s ESSID: %s\n",
519 print_ssid(iw, ifname));
520 printf(" Access Point: %s\n",
521 print_bssid(iw, ifname));
522 printf(" Mode: %s Channel: %s (%s)\n",
523 print_mode(iw, ifname),
524 print_channel(iw, ifname),
525 print_frequency(iw, ifname));
526 printf(" Tx-Power: %s Link Quality: %s/%s\n",
527 print_txpower(iw, ifname),
528 print_quality(iw, ifname),
529 print_quality_max(iw, ifname));
530 printf(" Signal: %s Noise: %s\n",
531 print_signal(iw, ifname),
532 print_noise(iw, ifname));
533 printf(" Bit Rate: %s\n",
534 print_rate(iw, ifname));
535 printf(" Encryption: %s\n",
536 print_encryption(iw, ifname));
537 printf(" Type: %s HW Mode(s): %s\n",
538 print_type(iw, ifname),
539 print_hwmodes(iw, ifname));
540 printf(" Hardware: %s [%s]\n",
541 print_hardware_id(iw, ifname),
542 print_hardware_name(iw, ifname));
543 printf(" TX power offset: %s\n",
544 print_txpower_offset(iw, ifname));
545 printf(" Frequency offset: %s\n",
546 print_frequency_offset(iw, ifname));
547 printf(" Supports VAPs: %s\n",
548 print_mbssid_supp(iw, ifname));
552 static void print_scanlist(const struct iwinfo_ops *iw, const char *ifname)
555 char buf[IWINFO_BUFSIZE];
556 struct iwinfo_scanlist_entry *e;
558 if (iw->scanlist(ifname, buf, &len))
560 printf("Scanning not possible\n\n");
565 printf("No scan results\n\n");
569 for (i = 0, x = 1; i < len; i += sizeof(struct iwinfo_scanlist_entry), x++)
571 e = (struct iwinfo_scanlist_entry *) &buf[i];
573 printf("Cell %02d - Address: %s\n",
575 format_bssid(e->mac));
576 printf(" ESSID: %s\n",
577 format_ssid(e->ssid));
578 printf(" Mode: %s Channel: %s\n",
579 IWINFO_OPMODE_NAMES[e->mode],
580 format_channel(e->channel));
581 printf(" Signal: %s Quality: %s/%s\n",
582 format_signal(e->signal - 0x100),
583 format_quality(e->quality),
584 format_quality_max(e->quality_max));
585 printf(" Encryption: %s\n\n",
586 format_encryption(&e->crypto));
591 static void print_txpwrlist(const struct iwinfo_ops *iw, const char *ifname)
593 int len, pwr, off, i;
594 char buf[IWINFO_BUFSIZE];
595 struct iwinfo_txpwrlist_entry *e;
597 if (iw->txpwrlist(ifname, buf, &len) || len <= 0)
599 printf("No TX power information available\n");
603 if (iw->txpower(ifname, &pwr))
606 if (iw->txpower_offset(ifname, &off))
609 for (i = 0; i < len; i += sizeof(struct iwinfo_txpwrlist_entry))
611 e = (struct iwinfo_txpwrlist_entry *) &buf[i];
613 printf("%s%3d dBm (%4d mW)\n",
614 (pwr == e->dbm) ? "*" : " ",
616 iwinfo_dbm2mw(e->dbm + off));
621 static void print_freqlist(const struct iwinfo_ops *iw, const char *ifname)
624 char buf[IWINFO_BUFSIZE];
625 struct iwinfo_freqlist_entry *e;
627 if (iw->freqlist(ifname, buf, &len) || len <= 0)
629 printf("No frequency information available\n");
633 if (iw->channel(ifname, &ch))
636 for (i = 0; i < len; i += sizeof(struct iwinfo_freqlist_entry))
638 e = (struct iwinfo_freqlist_entry *) &buf[i];
640 printf("%s %s (Channel %s)%s\n",
641 (ch == e->channel) ? "*" : " ",
642 format_frequency(e->mhz),
643 format_channel(e->channel),
644 e->restricted ? " [restricted]" : "");
649 static void print_assoclist(const struct iwinfo_ops *iw, const char *ifname)
652 char buf[IWINFO_BUFSIZE];
653 struct iwinfo_assoclist_entry *e;
655 if (iw->assoclist(ifname, buf, &len))
657 printf("No information available\n");
662 printf("No station connected\n");
666 for (i = 0; i < len; i += sizeof(struct iwinfo_assoclist_entry))
668 e = (struct iwinfo_assoclist_entry *) &buf[i];
670 printf("%s %s / %s (SNR %d) %d ms ago\n",
671 format_bssid(e->mac),
672 format_signal(e->signal),
673 format_noise(e->noise),
674 (e->signal - e->noise),
677 printf(" RX: %-38s %8d Pkts.\n",
678 format_assocrate(&e->rx_rate),
682 printf(" TX: %-38s %8d Pkts.\n\n",
683 format_assocrate(&e->tx_rate),
690 static char * lookup_country(char *buf, int len, int iso3166)
693 struct iwinfo_country_entry *c;
695 for (i = 0; i < len; i += sizeof(struct iwinfo_country_entry))
697 c = (struct iwinfo_country_entry *) &buf[i];
699 if (c->iso3166 == iso3166)
706 static void print_countrylist(const struct iwinfo_ops *iw, const char *ifname)
709 char buf[IWINFO_BUFSIZE];
712 const struct iwinfo_iso3166_label *l;
714 if (iw->countrylist(ifname, buf, &len))
716 printf("No country code information available\n");
720 if (iw->country(ifname, curcode))
721 memset(curcode, 0, sizeof(curcode));
723 for (l = IWINFO_ISO3166_NAMES; l->iso3166; l++)
725 if ((ccode = lookup_country(buf, len, l->iso3166)) != NULL)
727 printf("%s %4s %c%c\n",
728 strncmp(ccode, curcode, 2) ? " " : "*",
729 ccode, (l->iso3166 / 256), (l->iso3166 % 256));
735 int main(int argc, char **argv)
738 const struct iwinfo_ops *iw;
744 " iwinfo <device> info\n"
745 " iwinfo <device> scan\n"
746 " iwinfo <device> txpowerlist\n"
747 " iwinfo <device> freqlist\n"
748 " iwinfo <device> assoclist\n"
749 " iwinfo <device> countrylist\n"
755 iw = iwinfo_backend(argv[1]);
759 fprintf(stderr, "No such wireless device: %s\n", argv[1]);
763 for (i = 2; i < argc; i++)
768 print_info(iw, argv[1]);
772 print_scanlist(iw, argv[1]);
776 print_txpwrlist(iw, argv[1]);
780 print_freqlist(iw, argv[1]);
784 print_assoclist(iw, argv[1]);
788 print_countrylist(iw, argv[1]);
792 fprintf(stderr, "Unknown command: %s\n", argv[i]);