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/.
25 static char * format_bssid(unsigned char *mac)
29 snprintf(buf, sizeof(buf), "%02X:%02X:%02X:%02X:%02X:%02X",
30 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
35 static char * format_ssid(char *ssid)
37 static char buf[IWINFO_ESSID_MAX_SIZE+3];
40 snprintf(buf, sizeof(buf), "\"%s\"", ssid);
42 snprintf(buf, sizeof(buf), "unknown");
47 static char * format_channel(int ch)
52 snprintf(buf, sizeof(buf), "unknown");
54 snprintf(buf, sizeof(buf), "%d", ch);
59 static char * format_frequency(int freq)
64 snprintf(buf, sizeof(buf), "unknown");
66 snprintf(buf, sizeof(buf), "%.3f GHz", ((float)freq / 1000.0));
71 static char * format_txpower(int pwr)
76 snprintf(buf, sizeof(buf), "unknown");
78 snprintf(buf, sizeof(buf), "%d dBm", pwr);
83 static char * format_quality(int qual)
88 snprintf(buf, sizeof(buf), "unknown");
90 snprintf(buf, sizeof(buf), "%d", qual);
95 static char * format_quality_max(int qmax)
100 snprintf(buf, sizeof(buf), "unknown");
102 snprintf(buf, sizeof(buf), "%d", qmax);
107 static char * format_signal(int sig)
112 snprintf(buf, sizeof(buf), "unknown");
114 snprintf(buf, sizeof(buf), "%d dBm", sig);
119 static char * format_noise(int noise)
124 snprintf(buf, sizeof(buf), "unknown");
126 snprintf(buf, sizeof(buf), "%d dBm", noise);
131 static char * format_rate(int rate)
136 snprintf(buf, sizeof(buf), "unknown");
138 snprintf(buf, sizeof(buf), "%d.%d MBit/s",
139 rate / 1000, (rate % 1000) / 100);
144 static char * format_enc_ciphers(int ciphers)
146 static char str[128] = { 0 };
149 if (ciphers & IWINFO_CIPHER_WEP40)
150 pos += sprintf(pos, "WEP-40, ");
152 if (ciphers & IWINFO_CIPHER_WEP104)
153 pos += sprintf(pos, "WEP-104, ");
155 if (ciphers & IWINFO_CIPHER_TKIP)
156 pos += sprintf(pos, "TKIP, ");
158 if (ciphers & IWINFO_CIPHER_CCMP)
159 pos += sprintf(pos, "CCMP, ");
161 if (ciphers & IWINFO_CIPHER_WRAP)
162 pos += sprintf(pos, "WRAP, ");
164 if (ciphers & IWINFO_CIPHER_AESOCB)
165 pos += sprintf(pos, "AES-OCB, ");
167 if (ciphers & IWINFO_CIPHER_CKIP)
168 pos += sprintf(pos, "CKIP, ");
170 if (!ciphers || (ciphers & IWINFO_CIPHER_NONE))
171 pos += sprintf(pos, "NONE, ");
178 static char * format_enc_suites(int suites)
180 static char str[64] = { 0 };
183 if (suites & IWINFO_KMGMT_PSK)
184 pos += sprintf(pos, "PSK/");
186 if (suites & IWINFO_KMGMT_8021x)
187 pos += sprintf(pos, "802.1X/");
189 if (!suites || (suites & IWINFO_KMGMT_NONE))
190 pos += sprintf(pos, "NONE/");
197 static char * format_encryption(struct iwinfo_crypto_entry *c)
199 static char buf[512];
203 snprintf(buf, sizeof(buf), "unknown");
208 if (c->auth_algs && !c->wpa_version)
210 if ((c->auth_algs & IWINFO_AUTH_OPEN) &&
211 (c->auth_algs & IWINFO_AUTH_SHARED))
213 snprintf(buf, sizeof(buf), "WEP Open/Shared (%s)",
214 format_enc_ciphers(c->pair_ciphers));
216 else if (c->auth_algs & IWINFO_AUTH_OPEN)
218 snprintf(buf, sizeof(buf), "WEP Open System (%s)",
219 format_enc_ciphers(c->pair_ciphers));
221 else if (c->auth_algs & IWINFO_AUTH_SHARED)
223 snprintf(buf, sizeof(buf), "WEP Shared Auth (%s)",
224 format_enc_ciphers(c->pair_ciphers));
229 else if (c->wpa_version)
231 switch (c->wpa_version) {
233 snprintf(buf, sizeof(buf), "mixed WPA/WPA2 %s (%s)",
234 format_enc_suites(c->auth_suites),
235 format_enc_ciphers(c->pair_ciphers | c->group_ciphers));
239 snprintf(buf, sizeof(buf), "WPA2 %s (%s)",
240 format_enc_suites(c->auth_suites),
241 format_enc_ciphers(c->pair_ciphers | c->group_ciphers));
245 snprintf(buf, sizeof(buf), "WPA %s (%s)",
246 format_enc_suites(c->auth_suites),
247 format_enc_ciphers(c->pair_ciphers | c->group_ciphers));
253 snprintf(buf, sizeof(buf), "none");
258 snprintf(buf, sizeof(buf), "none");
264 static char * format_hwmodes(int modes)
269 snprintf(buf, sizeof(buf), "unknown");
271 snprintf(buf, sizeof(buf), "802.11%s%s%s%s%s",
272 (modes & IWINFO_80211_A) ? "a" : "",
273 (modes & IWINFO_80211_B) ? "b" : "",
274 (modes & IWINFO_80211_G) ? "g" : "",
275 (modes & IWINFO_80211_N) ? "n" : "",
276 (modes & IWINFO_80211_AC) ? "ac" : "");
281 static char * format_assocrate(struct iwinfo_rate_entry *r)
289 snprintf(buf, sizeof(buf), "unknown");
293 p += snprintf(p, l, "%s", format_rate(r->rate));
294 l = sizeof(buf) - (p - buf);
298 p += snprintf(p, l, ", MCS %d, %dMHz", r->mcs, 20 + r->is_40mhz*20);
299 l = sizeof(buf) - (p - buf);
302 p += snprintf(p, l, ", short GI");
310 static const char * print_type(const struct iwinfo_ops *iw, const char *ifname)
312 const char *type = iwinfo_type(ifname);
313 return type ? type : "unknown";
316 static char * print_hardware_id(const struct iwinfo_ops *iw, const char *ifname)
319 struct iwinfo_hardware_id ids;
321 if (!iw->hardware_id(ifname, (char *)&ids))
323 snprintf(buf, sizeof(buf), "%04X:%04X %04X:%04X",
324 ids.vendor_id, ids.device_id,
325 ids.subsystem_vendor_id, ids.subsystem_device_id);
329 snprintf(buf, sizeof(buf), "unknown");
335 static char * print_hardware_name(const struct iwinfo_ops *iw, const char *ifname)
337 static char buf[128];
339 if (iw->hardware_name(ifname, buf))
340 snprintf(buf, sizeof(buf), "unknown");
345 static char * print_txpower_offset(const struct iwinfo_ops *iw, const char *ifname)
350 if (iw->txpower_offset(ifname, &off))
351 snprintf(buf, sizeof(buf), "unknown");
353 snprintf(buf, sizeof(buf), "%d dB", off);
355 snprintf(buf, sizeof(buf), "none");
360 static char * print_frequency_offset(const struct iwinfo_ops *iw, const char *ifname)
365 if (iw->frequency_offset(ifname, &off))
366 snprintf(buf, sizeof(buf), "unknown");
368 snprintf(buf, sizeof(buf), "%.3f GHz", ((float)off / 1000.0));
370 snprintf(buf, sizeof(buf), "none");
375 static char * print_ssid(const struct iwinfo_ops *iw, const char *ifname)
377 char buf[IWINFO_ESSID_MAX_SIZE+1] = { 0 };
379 if (iw->ssid(ifname, buf))
380 memset(buf, 0, sizeof(buf));
382 return format_ssid(buf);
385 static char * print_bssid(const struct iwinfo_ops *iw, const char *ifname)
387 static char buf[18] = { 0 };
389 if (iw->bssid(ifname, buf))
390 snprintf(buf, sizeof(buf), "00:00:00:00:00:00");
395 static char * print_mode(const struct iwinfo_ops *iw, const char *ifname)
398 static char buf[128];
400 if (iw->mode(ifname, &mode))
401 mode = IWINFO_OPMODE_UNKNOWN;
403 snprintf(buf, sizeof(buf), "%s", IWINFO_OPMODE_NAMES[mode]);
408 static char * print_channel(const struct iwinfo_ops *iw, const char *ifname)
411 if (iw->channel(ifname, &ch))
414 return format_channel(ch);
417 static char * print_frequency(const struct iwinfo_ops *iw, const char *ifname)
420 if (iw->frequency(ifname, &freq))
423 return format_frequency(freq);
426 static char * print_txpower(const struct iwinfo_ops *iw, const char *ifname)
429 if (iw->txpower_offset(ifname, &off))
432 if (iw->txpower(ifname, &pwr))
437 return format_txpower(pwr);
440 static char * print_quality(const struct iwinfo_ops *iw, const char *ifname)
443 if (iw->quality(ifname, &qual))
446 return format_quality(qual);
449 static char * print_quality_max(const struct iwinfo_ops *iw, const char *ifname)
452 if (iw->quality_max(ifname, &qmax))
455 return format_quality_max(qmax);
458 static char * print_signal(const struct iwinfo_ops *iw, const char *ifname)
461 if (iw->signal(ifname, &sig))
464 return format_signal(sig);
467 static char * print_noise(const struct iwinfo_ops *iw, const char *ifname)
470 if (iw->noise(ifname, &noise))
473 return format_noise(noise);
476 static char * print_rate(const struct iwinfo_ops *iw, const char *ifname)
479 if (iw->bitrate(ifname, &rate))
482 return format_rate(rate);
485 static char * print_encryption(const struct iwinfo_ops *iw, const char *ifname)
487 struct iwinfo_crypto_entry c = { 0 };
488 if (iw->encryption(ifname, (char *)&c))
489 return format_encryption(NULL);
491 return format_encryption(&c);
494 static char * print_hwmodes(const struct iwinfo_ops *iw, const char *ifname)
497 if (iw->hwmodelist(ifname, &modes))
500 return format_hwmodes(modes);
503 static char * print_mbssid_supp(const struct iwinfo_ops *iw, const char *ifname)
508 if (iw->mbssid_support(ifname, &supp))
509 snprintf(buf, sizeof(buf), "no");
511 snprintf(buf, sizeof(buf), "%s", supp ? "yes" : "no");
516 static char * print_phyname(const struct iwinfo_ops *iw, const char *ifname)
520 if (!iw->phyname(ifname, buf))
527 static void print_info(const struct iwinfo_ops *iw, const char *ifname)
529 printf("%-9s ESSID: %s\n",
531 print_ssid(iw, ifname));
532 printf(" Access Point: %s\n",
533 print_bssid(iw, ifname));
534 printf(" Mode: %s Channel: %s (%s)\n",
535 print_mode(iw, ifname),
536 print_channel(iw, ifname),
537 print_frequency(iw, ifname));
538 printf(" Tx-Power: %s Link Quality: %s/%s\n",
539 print_txpower(iw, ifname),
540 print_quality(iw, ifname),
541 print_quality_max(iw, ifname));
542 printf(" Signal: %s Noise: %s\n",
543 print_signal(iw, ifname),
544 print_noise(iw, ifname));
545 printf(" Bit Rate: %s\n",
546 print_rate(iw, ifname));
547 printf(" Encryption: %s\n",
548 print_encryption(iw, ifname));
549 printf(" Type: %s HW Mode(s): %s\n",
550 print_type(iw, ifname),
551 print_hwmodes(iw, ifname));
552 printf(" Hardware: %s [%s]\n",
553 print_hardware_id(iw, ifname),
554 print_hardware_name(iw, ifname));
555 printf(" TX power offset: %s\n",
556 print_txpower_offset(iw, ifname));
557 printf(" Frequency offset: %s\n",
558 print_frequency_offset(iw, ifname));
559 printf(" Supports VAPs: %s PHY name: %s\n",
560 print_mbssid_supp(iw, ifname),
561 print_phyname(iw, ifname));
565 static void print_scanlist(const struct iwinfo_ops *iw, const char *ifname)
568 char buf[IWINFO_BUFSIZE];
569 struct iwinfo_scanlist_entry *e;
571 if (iw->scanlist(ifname, buf, &len))
573 printf("Scanning not possible\n\n");
578 printf("No scan results\n\n");
582 for (i = 0, x = 1; i < len; i += sizeof(struct iwinfo_scanlist_entry), x++)
584 e = (struct iwinfo_scanlist_entry *) &buf[i];
586 printf("Cell %02d - Address: %s\n",
588 format_bssid(e->mac));
589 printf(" ESSID: %s\n",
590 format_ssid(e->ssid));
591 printf(" Mode: %s Channel: %s\n",
592 IWINFO_OPMODE_NAMES[e->mode],
593 format_channel(e->channel));
594 printf(" Signal: %s Quality: %s/%s\n",
595 format_signal(e->signal - 0x100),
596 format_quality(e->quality),
597 format_quality_max(e->quality_max));
598 printf(" Encryption: %s\n\n",
599 format_encryption(&e->crypto));
604 static void print_txpwrlist(const struct iwinfo_ops *iw, const char *ifname)
606 int len, pwr, off, i;
607 char buf[IWINFO_BUFSIZE];
608 struct iwinfo_txpwrlist_entry *e;
610 if (iw->txpwrlist(ifname, buf, &len) || len <= 0)
612 printf("No TX power information available\n");
616 if (iw->txpower(ifname, &pwr))
619 if (iw->txpower_offset(ifname, &off))
622 for (i = 0; i < len; i += sizeof(struct iwinfo_txpwrlist_entry))
624 e = (struct iwinfo_txpwrlist_entry *) &buf[i];
626 printf("%s%3d dBm (%4d mW)\n",
627 (pwr == e->dbm) ? "*" : " ",
629 iwinfo_dbm2mw(e->dbm + off));
634 static void print_freqlist(const struct iwinfo_ops *iw, const char *ifname)
637 char buf[IWINFO_BUFSIZE];
638 struct iwinfo_freqlist_entry *e;
640 if (iw->freqlist(ifname, buf, &len) || len <= 0)
642 printf("No frequency information available\n");
646 if (iw->channel(ifname, &ch))
649 for (i = 0; i < len; i += sizeof(struct iwinfo_freqlist_entry))
651 e = (struct iwinfo_freqlist_entry *) &buf[i];
653 printf("%s %s (Channel %s)%s\n",
654 (ch == e->channel) ? "*" : " ",
655 format_frequency(e->mhz),
656 format_channel(e->channel),
657 e->restricted ? " [restricted]" : "");
662 static void print_assoclist(const struct iwinfo_ops *iw, const char *ifname)
665 char buf[IWINFO_BUFSIZE];
666 struct iwinfo_assoclist_entry *e;
668 if (iw->assoclist(ifname, buf, &len))
670 printf("No information available\n");
675 printf("No station connected\n");
679 for (i = 0; i < len; i += sizeof(struct iwinfo_assoclist_entry))
681 e = (struct iwinfo_assoclist_entry *) &buf[i];
683 printf("%s %s / %s (SNR %d) %d ms ago\n",
684 format_bssid(e->mac),
685 format_signal(e->signal),
686 format_noise(e->noise),
687 (e->signal - e->noise),
690 printf(" RX: %-38s %8d Pkts.\n",
691 format_assocrate(&e->rx_rate),
695 printf(" TX: %-38s %8d Pkts.\n\n",
696 format_assocrate(&e->tx_rate),
703 static char * lookup_country(char *buf, int len, int iso3166)
706 struct iwinfo_country_entry *c;
708 for (i = 0; i < len; i += sizeof(struct iwinfo_country_entry))
710 c = (struct iwinfo_country_entry *) &buf[i];
712 if (c->iso3166 == iso3166)
719 static void print_countrylist(const struct iwinfo_ops *iw, const char *ifname)
722 char buf[IWINFO_BUFSIZE];
725 const struct iwinfo_iso3166_label *l;
727 if (iw->countrylist(ifname, buf, &len))
729 printf("No country code information available\n");
733 if (iw->country(ifname, curcode))
734 memset(curcode, 0, sizeof(curcode));
736 for (l = IWINFO_ISO3166_NAMES; l->iso3166; l++)
738 if ((ccode = lookup_country(buf, len, l->iso3166)) != NULL)
740 printf("%s %4s %c%c\n",
741 strncmp(ccode, curcode, 2) ? " " : "*",
742 ccode, (l->iso3166 / 256), (l->iso3166 % 256));
747 static void lookup_phy(const struct iwinfo_ops *iw, const char *section)
749 char buf[IWINFO_BUFSIZE];
753 fprintf(stderr, "Not supported\n");
757 if (iw->lookup_phy(section, buf))
759 fprintf(stderr, "Phy not found\n");
767 int main(int argc, char **argv)
771 const struct iwinfo_ops *iw;
774 if (argc > 1 && argc < 3)
778 " iwinfo <device> info\n"
779 " iwinfo <device> scan\n"
780 " iwinfo <device> txpowerlist\n"
781 " iwinfo <device> freqlist\n"
782 " iwinfo <device> assoclist\n"
783 " iwinfo <device> countrylist\n"
784 " iwinfo <backend> phyname <section>\n"
792 glob("/sys/class/net/*", 0, NULL, &globbuf);
794 for (i = 0; i < globbuf.gl_pathc; i++)
796 p = strrchr(globbuf.gl_pathv[i], '/');
801 iw = iwinfo_backend(++p);
816 iw = iwinfo_backend_by_name(argv[1]);
820 fprintf(stderr, "No such wireless backend: %s\n", argv[1]);
828 lookup_phy(iw, argv[3]);
832 fprintf(stderr, "Unknown command: %s\n", argv[2]);
839 iw = iwinfo_backend(argv[1]);
843 fprintf(stderr, "No such wireless device: %s\n", argv[1]);
848 for (i = 2; i < argc; i++)
853 print_info(iw, argv[1]);
857 print_scanlist(iw, argv[1]);
861 print_txpwrlist(iw, argv[1]);
865 print_freqlist(iw, argv[1]);
869 print_assoclist(iw, argv[1]);
873 print_countrylist(iw, argv[1]);
877 fprintf(stderr, "Unknown command: %s\n", argv[i]);