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
]);
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