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_CCMP256
)
162 pos
+= sprintf(pos
, "CCMP-256, ");
164 if (ciphers
& IWINFO_CIPHER_GCMP
)
165 pos
+= sprintf(pos
, "GCMP, ");
167 if (ciphers
& IWINFO_CIPHER_GCMP256
)
168 pos
+= sprintf(pos
, "GCMP-256, ");
170 if (ciphers
& IWINFO_CIPHER_WRAP
)
171 pos
+= sprintf(pos
, "WRAP, ");
173 if (ciphers
& IWINFO_CIPHER_AESOCB
)
174 pos
+= sprintf(pos
, "AES-OCB, ");
176 if (ciphers
& IWINFO_CIPHER_CKIP
)
177 pos
+= sprintf(pos
, "CKIP, ");
179 if (!ciphers
|| (ciphers
& IWINFO_CIPHER_NONE
))
180 pos
+= sprintf(pos
, "NONE, ");
187 static char * format_enc_suites(int suites
)
189 static char str
[64] = { 0 };
192 if (suites
& IWINFO_KMGMT_PSK
)
193 pos
+= sprintf(pos
, "PSK/");
195 if (suites
& IWINFO_KMGMT_8021x
)
196 pos
+= sprintf(pos
, "802.1X/");
198 if (suites
& IWINFO_KMGMT_SAE
)
199 pos
+= sprintf(pos
, "SAE/");
201 if (suites
& IWINFO_KMGMT_OWE
)
202 pos
+= sprintf(pos
, "OWE/");
204 if (!suites
|| (suites
& IWINFO_KMGMT_NONE
))
205 pos
+= sprintf(pos
, "NONE/");
212 static char * format_encryption(struct iwinfo_crypto_entry
*c
)
214 static char buf
[512];
220 snprintf(buf
, sizeof(buf
), "unknown");
225 if (c
->auth_algs
&& !c
->wpa_version
)
227 if ((c
->auth_algs
& IWINFO_AUTH_OPEN
) &&
228 (c
->auth_algs
& IWINFO_AUTH_SHARED
))
230 snprintf(buf
, sizeof(buf
), "WEP Open/Shared (%s)",
231 format_enc_ciphers(c
->pair_ciphers
));
233 else if (c
->auth_algs
& IWINFO_AUTH_OPEN
)
235 snprintf(buf
, sizeof(buf
), "WEP Open System (%s)",
236 format_enc_ciphers(c
->pair_ciphers
));
238 else if (c
->auth_algs
& IWINFO_AUTH_SHARED
)
240 snprintf(buf
, sizeof(buf
), "WEP Shared Auth (%s)",
241 format_enc_ciphers(c
->pair_ciphers
));
246 else if (c
->wpa_version
)
248 for (i
= 0, n
= 0; i
< 3; i
++)
249 if (c
->wpa_version
& (1 << i
))
253 pos
+= sprintf(pos
, "mixed ");
255 for (i
= 0; i
< 3; i
++)
256 if (c
->wpa_version
& (1 << i
))
259 pos
+= sprintf(pos
, "WPA%d/", i
+ 1);
261 pos
+= sprintf(pos
, "WPA/");
266 sprintf(pos
, " %s (%s)",
267 format_enc_suites(c
->auth_suites
),
268 format_enc_ciphers(c
->pair_ciphers
| c
->group_ciphers
));
272 snprintf(buf
, sizeof(buf
), "none");
277 snprintf(buf
, sizeof(buf
), "none");
283 static char * format_hwmodes(int modes
)
285 static char buf
[32] = "802.11";
287 if (iwinfo_format_hwmodes(modes
, buf
+ 6, sizeof(buf
) - 6) < 1)
288 snprintf(buf
, sizeof(buf
), "unknown");
293 static char * format_assocrate(struct iwinfo_rate_entry
*r
)
301 snprintf(buf
, sizeof(buf
), "unknown");
305 p
+= snprintf(p
, l
, "%s", format_rate(r
->rate
));
306 l
= sizeof(buf
) - (p
- buf
);
310 p
+= snprintf(p
, l
, ", MCS %d, %dMHz", r
->mcs
, r
->mhz
);
311 l
= sizeof(buf
) - (p
- buf
);
315 p
+= snprintf(p
, l
, ", VHT-MCS %d, %dMHz", r
->mcs
, r
->mhz
);
316 l
= sizeof(buf
) - (p
- buf
);
320 p
+= snprintf(p
, l
, ", VHT-NSS %d", r
->nss
);
321 l
= sizeof(buf
) - (p
- buf
);
326 p
+= snprintf(p
, l
, ", HE-MCS %d, %dMHz", r
->mcs
, r
->mhz
);
327 l
= sizeof(buf
) - (p
- buf
);
329 p
+= snprintf(p
, l
, ", HE-NSS %d", r
->nss
);
330 l
= sizeof(buf
) - (p
- buf
);
332 p
+= snprintf(p
, l
, ", HE-GI %d", r
->he_gi
);
333 l
= sizeof(buf
) - (p
- buf
);
335 p
+= snprintf(p
, l
, ", HE-DCM %d", r
->he_dcm
);
336 l
= sizeof(buf
) - (p
- buf
);
343 static const char* format_chan_width(uint16_t width
)
346 case 20: return "20 MHz";
347 case 2040: return "40 MHz and upper or 20 MHz with intolerant bit";
348 case 40: return "40 MHz or lower";
349 case 80: return "80 MHz";
350 case 8080: return "80+80 MHz";
351 case 160: return "160 MHz";
358 static const char * print_type(const struct iwinfo_ops
*iw
, const char *ifname
)
360 const char *type
= iwinfo_type(ifname
);
361 return type
? type
: "unknown";
364 static char * print_hardware_id(const struct iwinfo_ops
*iw
, const char *ifname
)
367 struct iwinfo_hardware_id ids
;
369 if (!iw
->hardware_id(ifname
, (char *)&ids
))
371 snprintf(buf
, sizeof(buf
), "%04X:%04X %04X:%04X",
372 ids
.vendor_id
, ids
.device_id
,
373 ids
.subsystem_vendor_id
, ids
.subsystem_device_id
);
377 snprintf(buf
, sizeof(buf
), "unknown");
383 static char * print_hardware_name(const struct iwinfo_ops
*iw
, const char *ifname
)
385 static char buf
[128];
387 if (iw
->hardware_name(ifname
, buf
))
388 snprintf(buf
, sizeof(buf
), "unknown");
393 static char * print_txpower_offset(const struct iwinfo_ops
*iw
, const char *ifname
)
398 if (iw
->txpower_offset(ifname
, &off
))
399 snprintf(buf
, sizeof(buf
), "unknown");
401 snprintf(buf
, sizeof(buf
), "%d dB", off
);
403 snprintf(buf
, sizeof(buf
), "none");
408 static char * print_frequency_offset(const struct iwinfo_ops
*iw
, const char *ifname
)
413 if (iw
->frequency_offset(ifname
, &off
))
414 snprintf(buf
, sizeof(buf
), "unknown");
416 snprintf(buf
, sizeof(buf
), "%.3f GHz", ((float)off
/ 1000.0));
418 snprintf(buf
, sizeof(buf
), "none");
423 static char * print_ssid(const struct iwinfo_ops
*iw
, const char *ifname
)
425 char buf
[IWINFO_ESSID_MAX_SIZE
+1] = { 0 };
427 if (iw
->ssid(ifname
, buf
))
428 memset(buf
, 0, sizeof(buf
));
430 return format_ssid(buf
);
433 static char * print_bssid(const struct iwinfo_ops
*iw
, const char *ifname
)
435 static char buf
[18] = { 0 };
437 if (iw
->bssid(ifname
, buf
))
438 snprintf(buf
, sizeof(buf
), "00:00:00:00:00:00");
443 static char * print_mode(const struct iwinfo_ops
*iw
, const char *ifname
)
446 static char buf
[128];
448 if (iw
->mode(ifname
, &mode
))
449 mode
= IWINFO_OPMODE_UNKNOWN
;
451 snprintf(buf
, sizeof(buf
), "%s", IWINFO_OPMODE_NAMES
[mode
]);
456 static char * print_channel(const struct iwinfo_ops
*iw
, const char *ifname
)
459 if (iw
->channel(ifname
, &ch
))
462 return format_channel(ch
);
465 static char * print_center_chan1(const struct iwinfo_ops
*iw
, const char *ifname
)
468 if (iw
->center_chan1(ifname
, &ch
))
471 return format_channel(ch
);
474 static char * print_center_chan2(const struct iwinfo_ops
*iw
, const char *ifname
)
477 if (iw
->center_chan2(ifname
, &ch
))
480 return format_channel(ch
);
483 static char * print_frequency(const struct iwinfo_ops
*iw
, const char *ifname
)
486 if (iw
->frequency(ifname
, &freq
))
489 return format_frequency(freq
);
492 static char * print_txpower(const struct iwinfo_ops
*iw
, const char *ifname
)
495 if (iw
->txpower_offset(ifname
, &off
))
498 if (iw
->txpower(ifname
, &pwr
))
503 return format_txpower(pwr
);
506 static char * print_quality(const struct iwinfo_ops
*iw
, const char *ifname
)
509 if (iw
->quality(ifname
, &qual
))
512 return format_quality(qual
);
515 static char * print_quality_max(const struct iwinfo_ops
*iw
, const char *ifname
)
518 if (iw
->quality_max(ifname
, &qmax
))
521 return format_quality_max(qmax
);
524 static char * print_signal(const struct iwinfo_ops
*iw
, const char *ifname
)
527 if (iw
->signal(ifname
, &sig
))
530 return format_signal(sig
);
533 static char * print_noise(const struct iwinfo_ops
*iw
, const char *ifname
)
536 if (iw
->noise(ifname
, &noise
))
539 return format_noise(noise
);
542 static char * print_rate(const struct iwinfo_ops
*iw
, const char *ifname
)
545 if (iw
->bitrate(ifname
, &rate
))
548 return format_rate(rate
);
551 static char * print_encryption(const struct iwinfo_ops
*iw
, const char *ifname
)
553 struct iwinfo_crypto_entry c
= { 0 };
554 if (iw
->encryption(ifname
, (char *)&c
))
555 return format_encryption(NULL
);
557 return format_encryption(&c
);
560 static char * print_hwmodes(const struct iwinfo_ops
*iw
, const char *ifname
)
563 if (iw
->hwmodelist(ifname
, &modes
))
566 return format_hwmodes(modes
);
569 static char * print_mbssid_supp(const struct iwinfo_ops
*iw
, const char *ifname
)
574 if (iw
->mbssid_support(ifname
, &supp
))
575 snprintf(buf
, sizeof(buf
), "no");
577 snprintf(buf
, sizeof(buf
), "%s", supp
? "yes" : "no");
582 static char * print_phyname(const struct iwinfo_ops
*iw
, const char *ifname
)
586 if (!iw
->phyname(ifname
, buf
))
593 static void print_info(const struct iwinfo_ops
*iw
, const char *ifname
)
595 printf("%-9s ESSID: %s\n",
597 print_ssid(iw
, ifname
));
598 printf(" Access Point: %s\n",
599 print_bssid(iw
, ifname
));
600 printf(" Mode: %s Channel: %s (%s)\n",
601 print_mode(iw
, ifname
),
602 print_channel(iw
, ifname
),
603 print_frequency(iw
, ifname
));
604 if (iw
->center_chan1
!= NULL
) {
605 printf(" Center Channel 1: %s",
606 print_center_chan1(iw
, ifname
));
607 printf(" 2: %s\n", print_center_chan2(iw
, ifname
));
609 printf(" Tx-Power: %s Link Quality: %s/%s\n",
610 print_txpower(iw
, ifname
),
611 print_quality(iw
, ifname
),
612 print_quality_max(iw
, ifname
));
613 printf(" Signal: %s Noise: %s\n",
614 print_signal(iw
, ifname
),
615 print_noise(iw
, ifname
));
616 printf(" Bit Rate: %s\n",
617 print_rate(iw
, ifname
));
618 printf(" Encryption: %s\n",
619 print_encryption(iw
, ifname
));
620 printf(" Type: %s HW Mode(s): %s\n",
621 print_type(iw
, ifname
),
622 print_hwmodes(iw
, ifname
));
623 printf(" Hardware: %s [%s]\n",
624 print_hardware_id(iw
, ifname
),
625 print_hardware_name(iw
, ifname
));
626 printf(" TX power offset: %s\n",
627 print_txpower_offset(iw
, ifname
));
628 printf(" Frequency offset: %s\n",
629 print_frequency_offset(iw
, ifname
));
630 printf(" Supports VAPs: %s PHY name: %s\n",
631 print_mbssid_supp(iw
, ifname
),
632 print_phyname(iw
, ifname
));
636 static void print_scanlist(const struct iwinfo_ops
*iw
, const char *ifname
)
639 char buf
[IWINFO_BUFSIZE
];
640 struct iwinfo_scanlist_entry
*e
;
642 if (iw
->scanlist(ifname
, buf
, &len
))
644 printf("Scanning not possible\n\n");
649 printf("No scan results\n\n");
653 for (i
= 0, x
= 1; i
< len
; i
+= sizeof(struct iwinfo_scanlist_entry
), x
++)
655 e
= (struct iwinfo_scanlist_entry
*) &buf
[i
];
657 printf("Cell %02d - Address: %s\n",
659 format_bssid(e
->mac
));
660 printf(" ESSID: %s\n",
661 format_ssid(e
->ssid
));
662 printf(" Mode: %s Channel: %s\n",
663 IWINFO_OPMODE_NAMES
[e
->mode
],
664 format_channel(e
->channel
));
665 printf(" Signal: %s Quality: %s/%s\n",
666 format_signal(e
->signal
- 0x100),
667 format_quality(e
->quality
),
668 format_quality_max(e
->quality_max
));
669 printf(" Encryption: %s\n",
670 format_encryption(&e
->crypto
));
671 printf(" HT Operation:\n");
672 printf(" Primary Channel: %d\n",
673 e
->ht_chan_info
.primary_chan
);
674 printf(" Secondary Channel Offset: %s\n",
675 ht_secondary_offset
[e
->ht_chan_info
.secondary_chan_off
]);
676 printf(" Channel Width: %s\n",
677 format_chan_width(e
->ht_chan_info
.chan_width
));
679 if (e
->vht_chan_info
.center_chan_1
) {
680 printf(" VHT Operation:\n");
681 printf(" Channel Width: %s\n",
682 format_chan_width(e
->vht_chan_info
.chan_width
));
683 printf(" Center Frequency 1: %d\n",
684 e
->vht_chan_info
.center_chan_1
);
685 printf(" Center Frequency 2: %d\n",
686 e
->vht_chan_info
.center_chan_2
);
694 static void print_txpwrlist(const struct iwinfo_ops
*iw
, const char *ifname
)
696 int len
, pwr
, off
, i
;
697 char buf
[IWINFO_BUFSIZE
];
698 struct iwinfo_txpwrlist_entry
*e
;
700 if (iw
->txpwrlist(ifname
, buf
, &len
) || len
<= 0)
702 printf("No TX power information available\n");
706 if (iw
->txpower(ifname
, &pwr
))
709 if (iw
->txpower_offset(ifname
, &off
))
712 for (i
= 0; i
< len
; i
+= sizeof(struct iwinfo_txpwrlist_entry
))
714 e
= (struct iwinfo_txpwrlist_entry
*) &buf
[i
];
716 printf("%s%3d dBm (%4d mW)\n",
717 (pwr
== e
->dbm
) ? "*" : " ",
719 iwinfo_dbm2mw(e
->dbm
+ off
));
724 static void print_freqlist(const struct iwinfo_ops
*iw
, const char *ifname
)
727 char buf
[IWINFO_BUFSIZE
];
728 struct iwinfo_freqlist_entry
*e
;
730 if (iw
->freqlist(ifname
, buf
, &len
) || len
<= 0)
732 printf("No frequency information available\n");
736 if (iw
->channel(ifname
, &ch
))
739 for (i
= 0; i
< len
; i
+= sizeof(struct iwinfo_freqlist_entry
))
741 e
= (struct iwinfo_freqlist_entry
*) &buf
[i
];
743 printf("%s %s (Channel %s)%s\n",
744 (ch
== e
->channel
) ? "*" : " ",
745 format_frequency(e
->mhz
),
746 format_channel(e
->channel
),
747 e
->restricted
? " [restricted]" : "");
752 static void print_assoclist(const struct iwinfo_ops
*iw
, const char *ifname
)
755 char buf
[IWINFO_BUFSIZE
];
756 struct iwinfo_assoclist_entry
*e
;
758 if (iw
->assoclist(ifname
, buf
, &len
))
760 printf("No information available\n");
765 printf("No station connected\n");
769 for (i
= 0; i
< len
; i
+= sizeof(struct iwinfo_assoclist_entry
))
771 e
= (struct iwinfo_assoclist_entry
*) &buf
[i
];
773 printf("%s %s / %s (SNR %d) %d ms ago\n",
774 format_bssid(e
->mac
),
775 format_signal(e
->signal
),
776 format_noise(e
->noise
),
777 (e
->signal
- e
->noise
),
780 printf(" RX: %-38s %8d Pkts.\n",
781 format_assocrate(&e
->rx_rate
),
785 printf(" TX: %-38s %8d Pkts.\n",
786 format_assocrate(&e
->tx_rate
),
790 printf(" expected throughput: %s\n\n",
791 format_rate(e
->thr
));
796 static char * lookup_country(char *buf
, int len
, int iso3166
)
799 struct iwinfo_country_entry
*c
;
801 for (i
= 0; i
< len
; i
+= sizeof(struct iwinfo_country_entry
))
803 c
= (struct iwinfo_country_entry
*) &buf
[i
];
805 if (c
->iso3166
== iso3166
)
812 static void print_countrylist(const struct iwinfo_ops
*iw
, const char *ifname
)
815 char buf
[IWINFO_BUFSIZE
];
818 const struct iwinfo_iso3166_label
*l
;
820 if (iw
->countrylist(ifname
, buf
, &len
))
822 printf("No country code information available\n");
826 if (iw
->country(ifname
, curcode
))
827 memset(curcode
, 0, sizeof(curcode
));
829 for (l
= IWINFO_ISO3166_NAMES
; l
->iso3166
; l
++)
831 if ((ccode
= lookup_country(buf
, len
, l
->iso3166
)) != NULL
)
833 printf("%s %4s %c%c\n",
834 strncmp(ccode
, curcode
, 2) ? " " : "*",
835 ccode
, (l
->iso3166
/ 256), (l
->iso3166
% 256));
840 static void print_htmodelist(const struct iwinfo_ops
*iw
, const char *ifname
)
844 if (iw
->htmodelist(ifname
, &htmodes
))
846 printf("No HT mode information available\n");
850 for (i
= 0; i
< ARRAY_SIZE(IWINFO_HTMODE_NAMES
); i
++)
851 if (htmodes
& (1 << i
))
852 printf("%s ", IWINFO_HTMODE_NAMES
[i
]);
857 static void lookup_phy(const struct iwinfo_ops
*iw
, const char *section
)
859 char buf
[IWINFO_BUFSIZE
];
863 fprintf(stderr
, "Not supported\n");
867 if (iw
->lookup_phy(section
, buf
))
869 fprintf(stderr
, "Phy not found\n");
877 static void lookup_path(const struct iwinfo_ops
*iw
, const char *phy
)
881 if (!iw
->phy_path
|| iw
->phy_path(phy
, &path
) || !path
)
884 printf("%s\n", path
);
887 int main(int argc
, char **argv
)
891 const struct iwinfo_ops
*iw
;
894 if (argc
> 1 && argc
< 3)
898 " iwinfo <device> info\n"
899 " iwinfo <device> scan\n"
900 " iwinfo <device> txpowerlist\n"
901 " iwinfo <device> freqlist\n"
902 " iwinfo <device> assoclist\n"
903 " iwinfo <device> countrylist\n"
904 " iwinfo <device> htmodelist\n"
905 " iwinfo <backend> phyname <section>\n"
913 glob("/sys/class/net/*", 0, NULL
, &globbuf
);
915 for (i
= 0; i
< globbuf
.gl_pathc
; i
++)
917 p
= strrchr(globbuf
.gl_pathv
[i
], '/');
922 iw
= iwinfo_backend(++p
);
937 iw
= iwinfo_backend_by_name(argv
[1]);
941 fprintf(stderr
, "No such wireless backend: %s\n", argv
[1]);
946 if (!strcmp(argv
[2], "path")) {
947 lookup_path(iw
, argv
[3]);
953 lookup_phy(iw
, argv
[3]);
957 fprintf(stderr
, "Unknown command: %s\n", argv
[2]);
964 iw
= iwinfo_backend(argv
[1]);
968 fprintf(stderr
, "No such wireless device: %s\n", argv
[1]);
973 for (i
= 2; i
< argc
; i
++)
978 print_info(iw
, argv
[1]);
982 print_scanlist(iw
, argv
[1]);
986 print_txpwrlist(iw
, argv
[1]);
990 print_freqlist(iw
, argv
[1]);
994 print_assoclist(iw
, argv
[1]);
998 print_countrylist(iw
, argv
[1]);
1002 print_htmodelist(iw
, argv
[1]);
1006 fprintf(stderr
, "Unknown command: %s\n", argv
[i
]);