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",
272 (modes & IWINFO_80211_A) ? "a" : "",
273 (modes & IWINFO_80211_B) ? "b" : "",
274 (modes & IWINFO_80211_G) ? "g" : "",
275 (modes & IWINFO_80211_N) ? "n" : "");
280 static char * format_assocrate(struct iwinfo_rate_entry *r)
288 snprintf(buf, sizeof(buf), "unknown");
292 p += snprintf(p, l, "%s", format_rate(r->rate));
293 l = sizeof(buf) - (p - buf);
297 p += snprintf(p, l, ", MCS %d, %dMHz", r->mcs, 20 + r->is_40mhz*20);
298 l = sizeof(buf) - (p - buf);
301 p += snprintf(p, l, ", short GI");
309 static const char * print_type(const struct iwinfo_ops *iw, const char *ifname)
311 const char *type = iwinfo_type(ifname);
312 return type ? type : "unknown";
315 static char * print_hardware_id(const struct iwinfo_ops *iw, const char *ifname)
318 struct iwinfo_hardware_id ids;
320 if (!iw->hardware_id(ifname, (char *)&ids))
322 snprintf(buf, sizeof(buf), "%04X:%04X %04X:%04X",
323 ids.vendor_id, ids.device_id,
324 ids.subsystem_vendor_id, ids.subsystem_device_id);
328 snprintf(buf, sizeof(buf), "unknown");
334 static char * print_hardware_name(const struct iwinfo_ops *iw, const char *ifname)
336 static char buf[128];
338 if (iw->hardware_name(ifname, buf))
339 snprintf(buf, sizeof(buf), "unknown");
344 static char * print_txpower_offset(const struct iwinfo_ops *iw, const char *ifname)
349 if (iw->txpower_offset(ifname, &off))
350 snprintf(buf, sizeof(buf), "unknown");
352 snprintf(buf, sizeof(buf), "%d dB", off);
354 snprintf(buf, sizeof(buf), "none");
359 static char * print_frequency_offset(const struct iwinfo_ops *iw, const char *ifname)
364 if (iw->frequency_offset(ifname, &off))
365 snprintf(buf, sizeof(buf), "unknown");
367 snprintf(buf, sizeof(buf), "%.3f GHz", ((float)off / 1000.0));
369 snprintf(buf, sizeof(buf), "none");
374 static char * print_ssid(const struct iwinfo_ops *iw, const char *ifname)
376 char buf[IWINFO_ESSID_MAX_SIZE+1] = { 0 };
378 if (iw->ssid(ifname, buf))
379 memset(buf, 0, sizeof(buf));
381 return format_ssid(buf);
384 static char * print_bssid(const struct iwinfo_ops *iw, const char *ifname)
386 static char buf[18] = { 0 };
388 if (iw->bssid(ifname, buf))
389 snprintf(buf, sizeof(buf), "00:00:00:00:00:00");
394 static char * print_mode(const struct iwinfo_ops *iw, const char *ifname)
397 static char buf[128];
399 if (iw->mode(ifname, &mode))
400 mode = IWINFO_OPMODE_UNKNOWN;
402 snprintf(buf, sizeof(buf), "%s", IWINFO_OPMODE_NAMES[mode]);
407 static char * print_channel(const struct iwinfo_ops *iw, const char *ifname)
410 if (iw->channel(ifname, &ch))
413 return format_channel(ch);
416 static char * print_frequency(const struct iwinfo_ops *iw, const char *ifname)
419 if (iw->frequency(ifname, &freq))
422 return format_frequency(freq);
425 static char * print_txpower(const struct iwinfo_ops *iw, const char *ifname)
428 if (iw->txpower_offset(ifname, &off))
431 if (iw->txpower(ifname, &pwr))
436 return format_txpower(pwr);
439 static char * print_quality(const struct iwinfo_ops *iw, const char *ifname)
442 if (iw->quality(ifname, &qual))
445 return format_quality(qual);
448 static char * print_quality_max(const struct iwinfo_ops *iw, const char *ifname)
451 if (iw->quality_max(ifname, &qmax))
454 return format_quality_max(qmax);
457 static char * print_signal(const struct iwinfo_ops *iw, const char *ifname)
460 if (iw->signal(ifname, &sig))
463 return format_signal(sig);
466 static char * print_noise(const struct iwinfo_ops *iw, const char *ifname)
469 if (iw->noise(ifname, &noise))
472 return format_noise(noise);
475 static char * print_rate(const struct iwinfo_ops *iw, const char *ifname)
478 if (iw->bitrate(ifname, &rate))
481 return format_rate(rate);
484 static char * print_encryption(const struct iwinfo_ops *iw, const char *ifname)
486 struct iwinfo_crypto_entry c = { 0 };
487 if (iw->encryption(ifname, (char *)&c))
488 return format_encryption(NULL);
490 return format_encryption(&c);
493 static char * print_hwmodes(const struct iwinfo_ops *iw, const char *ifname)
496 if (iw->hwmodelist(ifname, &modes))
499 return format_hwmodes(modes);
502 static char * print_mbssid_supp(const struct iwinfo_ops *iw, const char *ifname)
507 if (iw->mbssid_support(ifname, &supp))
508 snprintf(buf, sizeof(buf), "no");
510 snprintf(buf, sizeof(buf), "%s", supp ? "yes" : "no");
515 static char * print_phyname(const struct iwinfo_ops *iw, const char *ifname)
519 if (!iw->phyname(ifname, buf))
526 static void print_info(const struct iwinfo_ops *iw, const char *ifname)
528 printf("%-9s ESSID: %s\n",
530 print_ssid(iw, ifname));
531 printf(" Access Point: %s\n",
532 print_bssid(iw, ifname));
533 printf(" Mode: %s Channel: %s (%s)\n",
534 print_mode(iw, ifname),
535 print_channel(iw, ifname),
536 print_frequency(iw, ifname));
537 printf(" Tx-Power: %s Link Quality: %s/%s\n",
538 print_txpower(iw, ifname),
539 print_quality(iw, ifname),
540 print_quality_max(iw, ifname));
541 printf(" Signal: %s Noise: %s\n",
542 print_signal(iw, ifname),
543 print_noise(iw, ifname));
544 printf(" Bit Rate: %s\n",
545 print_rate(iw, ifname));
546 printf(" Encryption: %s\n",
547 print_encryption(iw, ifname));
548 printf(" Type: %s HW Mode(s): %s\n",
549 print_type(iw, ifname),
550 print_hwmodes(iw, ifname));
551 printf(" Hardware: %s [%s]\n",
552 print_hardware_id(iw, ifname),
553 print_hardware_name(iw, ifname));
554 printf(" TX power offset: %s\n",
555 print_txpower_offset(iw, ifname));
556 printf(" Frequency offset: %s\n",
557 print_frequency_offset(iw, ifname));
558 printf(" Supports VAPs: %s PHY name: %s\n",
559 print_mbssid_supp(iw, ifname),
560 print_phyname(iw, ifname));
564 static void print_scanlist(const struct iwinfo_ops *iw, const char *ifname)
567 char buf[IWINFO_BUFSIZE];
568 struct iwinfo_scanlist_entry *e;
570 if (iw->scanlist(ifname, buf, &len))
572 printf("Scanning not possible\n\n");
577 printf("No scan results\n\n");
581 for (i = 0, x = 1; i < len; i += sizeof(struct iwinfo_scanlist_entry), x++)
583 e = (struct iwinfo_scanlist_entry *) &buf[i];
585 printf("Cell %02d - Address: %s\n",
587 format_bssid(e->mac));
588 printf(" ESSID: %s\n",
589 format_ssid(e->ssid));
590 printf(" Mode: %s Channel: %s\n",
591 IWINFO_OPMODE_NAMES[e->mode],
592 format_channel(e->channel));
593 printf(" Signal: %s Quality: %s/%s\n",
594 format_signal(e->signal - 0x100),
595 format_quality(e->quality),
596 format_quality_max(e->quality_max));
597 printf(" Encryption: %s\n\n",
598 format_encryption(&e->crypto));
603 static void print_txpwrlist(const struct iwinfo_ops *iw, const char *ifname)
605 int len, pwr, off, i;
606 char buf[IWINFO_BUFSIZE];
607 struct iwinfo_txpwrlist_entry *e;
609 if (iw->txpwrlist(ifname, buf, &len) || len <= 0)
611 printf("No TX power information available\n");
615 if (iw->txpower(ifname, &pwr))
618 if (iw->txpower_offset(ifname, &off))
621 for (i = 0; i < len; i += sizeof(struct iwinfo_txpwrlist_entry))
623 e = (struct iwinfo_txpwrlist_entry *) &buf[i];
625 printf("%s%3d dBm (%4d mW)\n",
626 (pwr == e->dbm) ? "*" : " ",
628 iwinfo_dbm2mw(e->dbm + off));
633 static void print_freqlist(const struct iwinfo_ops *iw, const char *ifname)
636 char buf[IWINFO_BUFSIZE];
637 struct iwinfo_freqlist_entry *e;
639 if (iw->freqlist(ifname, buf, &len) || len <= 0)
641 printf("No frequency information available\n");
645 if (iw->channel(ifname, &ch))
648 for (i = 0; i < len; i += sizeof(struct iwinfo_freqlist_entry))
650 e = (struct iwinfo_freqlist_entry *) &buf[i];
652 printf("%s %s (Channel %s)%s\n",
653 (ch == e->channel) ? "*" : " ",
654 format_frequency(e->mhz),
655 format_channel(e->channel),
656 e->restricted ? " [restricted]" : "");
661 static void print_assoclist(const struct iwinfo_ops *iw, const char *ifname)
664 char buf[IWINFO_BUFSIZE];
665 struct iwinfo_assoclist_entry *e;
667 if (iw->assoclist(ifname, buf, &len))
669 printf("No information available\n");
674 printf("No station connected\n");
678 for (i = 0; i < len; i += sizeof(struct iwinfo_assoclist_entry))
680 e = (struct iwinfo_assoclist_entry *) &buf[i];
682 printf("%s %s / %s (SNR %d) %d ms ago\n",
683 format_bssid(e->mac),
684 format_signal(e->signal),
685 format_noise(e->noise),
686 (e->signal - e->noise),
689 printf(" RX: %-38s %8d Pkts.\n",
690 format_assocrate(&e->rx_rate),
694 printf(" TX: %-38s %8d Pkts.\n\n",
695 format_assocrate(&e->tx_rate),
702 static char * lookup_country(char *buf, int len, int iso3166)
705 struct iwinfo_country_entry *c;
707 for (i = 0; i < len; i += sizeof(struct iwinfo_country_entry))
709 c = (struct iwinfo_country_entry *) &buf[i];
711 if (c->iso3166 == iso3166)
718 static void print_countrylist(const struct iwinfo_ops *iw, const char *ifname)
721 char buf[IWINFO_BUFSIZE];
724 const struct iwinfo_iso3166_label *l;
726 if (iw->countrylist(ifname, buf, &len))
728 printf("No country code information available\n");
732 if (iw->country(ifname, curcode))
733 memset(curcode, 0, sizeof(curcode));
735 for (l = IWINFO_ISO3166_NAMES; l->iso3166; l++)
737 if ((ccode = lookup_country(buf, len, l->iso3166)) != NULL)
739 printf("%s %4s %c%c\n",
740 strncmp(ccode, curcode, 2) ? " " : "*",
741 ccode, (l->iso3166 / 256), (l->iso3166 % 256));
747 int main(int argc, char **argv)
751 const struct iwinfo_ops *iw;
754 if (argc > 1 && argc < 3)
758 " iwinfo <device> info\n"
759 " iwinfo <device> scan\n"
760 " iwinfo <device> txpowerlist\n"
761 " iwinfo <device> freqlist\n"
762 " iwinfo <device> assoclist\n"
763 " iwinfo <device> countrylist\n"
771 glob("/sys/class/net/*", 0, NULL, &globbuf);
773 for (i = 0; i < globbuf.gl_pathc; i++)
775 p = strrchr(globbuf.gl_pathv[i], '/');
780 iw = iwinfo_backend(++p);
793 iw = iwinfo_backend(argv[1]);
797 fprintf(stderr, "No such wireless device: %s\n", argv[1]);
801 for (i = 2; i < argc; i++)
806 print_info(iw, argv[1]);
810 print_scanlist(iw, argv[1]);
814 print_txpwrlist(iw, argv[1]);
818 print_freqlist(iw, argv[1]);
822 print_assoclist(iw, argv[1]);
826 print_countrylist(iw, argv[1]);
830 fprintf(stderr, "Unknown command: %s\n", argv[i]);