2 * iwinfo - Wireless Information Library - Broadcom wl.o Backend
4 * Copyright (C) 2009 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/.
18 * This code is based on the wlc.c utility published by OpenWrt.org .
21 #include "iwinfo_wl.h"
22 #include "iwinfo_wext.h"
24 static int ioctl_socket
= -1;
26 static int wl_ioctl(const char *name
, int cmd
, void *buf
, int len
)
32 if( ioctl_socket
== -1 )
34 ioctl_socket
= socket(AF_INET
, SOCK_DGRAM
, 0);
35 fcntl(ioctl_socket
, F_SETFD
, fcntl(ioctl_socket
, F_GETFD
) | FD_CLOEXEC
);
42 strncpy(ifr
.ifr_name
, name
, IFNAMSIZ
);
43 ifr
.ifr_data
= (caddr_t
) &ioc
;
45 return ioctl(ioctl_socket
, SIOCDEVPRIVATE
, &ifr
);
48 static struct wl_maclist
* wl_read_assoclist(const char *ifname
)
50 struct wl_maclist
*macs
;
51 int maclen
= 4 + WL_MAX_STA_COUNT
* 6;
53 if( (macs
= (struct wl_maclist
*) malloc(maclen
)) != NULL
)
55 memset(macs
, 0, maclen
);
56 macs
->count
= WL_MAX_STA_COUNT
;
58 if( !wl_ioctl(ifname
, WLC_GET_ASSOCLIST
, macs
, maclen
) )
68 int wl_probe(const char *ifname
)
72 if( !wl_ioctl(ifname
, WLC_GET_MAGIC
, &magic
, sizeof(magic
)) && (magic
== WLC_IOCTL_MAGIC
))
80 if( ioctl_socket
> -1 )
84 int wl_get_mode(const char *ifname
, char *buf
)
87 int ap
, infra
, passive
;
89 if( (ret
= wl_ioctl(ifname
, WLC_GET_AP
, &ap
, sizeof(ap
))) )
92 if( (ret
= wl_ioctl(ifname
, WLC_GET_INFRA
, &infra
, sizeof(infra
))) )
95 if( (ret
= wl_ioctl(ifname
, WLC_GET_PASSIVE
, &passive
, sizeof(passive
))) )
99 sprintf(buf
, "Monitor");
101 sprintf(buf
, "Ad-Hoc");
103 sprintf(buf
, "Master");
105 sprintf(buf
, "Client");
110 int wl_get_ssid(const char *ifname
, char *buf
)
115 if( !(ret
= wl_ioctl(ifname
, WLC_GET_SSID
, &ssid
, sizeof(ssid
))) )
116 memcpy(buf
, ssid
.ssid
, ssid
.ssid_len
);
121 int wl_get_bssid(const char *ifname
, char *buf
)
126 if( !(ret
= wl_ioctl(ifname
, WLC_GET_BSSID
, bssid
, 6)) )
127 sprintf(buf
, "%02X:%02X:%02X:%02X:%02X:%02X",
128 (uint8_t)bssid
[0], (uint8_t)bssid
[1], (uint8_t)bssid
[2],
129 (uint8_t)bssid
[3], (uint8_t)bssid
[4], (uint8_t)bssid
[5]
135 int wl_get_channel(const char *ifname
, int *buf
)
137 return wl_ioctl(ifname
, WLC_GET_CHANNEL
, buf
, sizeof(buf
));
140 int wl_get_frequency(const char *ifname
, int *buf
)
142 return wext_get_frequency(ifname
, buf
);
145 int wl_get_txpower(const char *ifname
, int *buf
)
147 return wext_get_txpower(ifname
, buf
);
150 int wl_get_bitrate(const char *ifname
, int *buf
)
155 if( !(ret
= wl_ioctl(ifname
, WLC_GET_RATE
, &rate
, sizeof(rate
))) && (rate
> 0))
156 *buf
= ((rate
/ 2) * 1000) + ((rate
& 1) ? 500 : 0);
161 int wl_get_signal(const char *ifname
, int *buf
)
163 unsigned int ap
, rssi
, i
, rssi_count
;
164 int ioctl_req_version
= 0x2000;
165 char tmp
[WLC_IOCTL_MAXLEN
];
166 struct wl_maclist
*macs
= NULL
;
167 wl_sta_rssi_t starssi
;
169 memset(tmp
, 0, WLC_IOCTL_MAXLEN
);
170 memcpy(tmp
, &ioctl_req_version
, sizeof(ioctl_req_version
));
172 wl_ioctl(ifname
, WLC_GET_BSS_INFO
, tmp
, WLC_IOCTL_MAXLEN
);
174 if( !wl_ioctl(ifname
, WLC_GET_AP
, &ap
, sizeof(ap
)) && !ap
)
176 *buf
= tmp
[WL_BSS_RSSI_OFFSET
];
180 rssi
= rssi_count
= 0;
182 /* Calculate average rssi from conntected stations */
183 if( (macs
= wl_read_assoclist(ifname
)) != NULL
)
185 for( i
= 0; i
< macs
->count
; i
++ )
187 memcpy(starssi
.mac
, &macs
->ea
[i
], 6);
189 if( !wl_ioctl(ifname
, WLC_GET_RSSI
, &starssi
, 12) )
191 rssi
-= starssi
.rssi
;
199 *buf
= (rssi
== 0 || rssi_count
== 0) ? 1 : -(rssi
/ rssi_count
);
205 int wl_get_noise(const char *ifname
, int *buf
)
207 unsigned int ap
, noise
;
208 int ioctl_req_version
= 0x2000;
209 char tmp
[WLC_IOCTL_MAXLEN
];
211 memset(tmp
, 0, WLC_IOCTL_MAXLEN
);
212 memcpy(tmp
, &ioctl_req_version
, sizeof(ioctl_req_version
));
214 wl_ioctl(ifname
, WLC_GET_BSS_INFO
, tmp
, WLC_IOCTL_MAXLEN
);
216 if ((wl_ioctl(ifname
, WLC_GET_AP
, &ap
, sizeof(ap
)) < 0) || ap
)
218 if (wl_ioctl(ifname
, WLC_GET_PHY_NOISE
, &noise
, sizeof(noise
)) < 0)
223 noise
= tmp
[WL_BSS_NOISE_OFFSET
];
231 int wl_get_quality(const char *ifname
, int *buf
)
233 return wext_get_quality(ifname
, buf
);
236 int wl_get_quality_max(const char *ifname
, int *buf
)
238 return wext_get_quality_max(ifname
, buf
);
241 int wl_get_encryption(const char *ifname
, char *buf
)
243 uint32_t wsec
, wauth
, wpa
;
244 struct iwinfo_crypto_entry
*c
= (struct iwinfo_crypto_entry
*)buf
;
246 if( wl_ioctl(ifname
, WLC_GET_WPA_AUTH
, &wpa
, sizeof(uint32_t)) ||
247 wl_ioctl(ifname
, WLC_GET_WSEC
, &wsec
, sizeof(uint32_t)) ||
248 wl_ioctl(ifname
, WLC_GET_AUTH
, &wauth
, sizeof(uint32_t)) )
254 c
->pair_ciphers
|= IWINFO_CIPHER_TKIP
;
258 c
->pair_ciphers
|= IWINFO_CIPHER_CCMP
;
262 c
->pair_ciphers
|= IWINFO_CIPHER_TKIP
;
263 c
->pair_ciphers
|= IWINFO_CIPHER_CCMP
;
271 c
->auth_algs
|= IWINFO_AUTH_OPEN
;
273 else if( wsec
&& wauth
)
274 c
->auth_algs
|= IWINFO_AUTH_SHARED
;
276 /* ToDo: evaluate WEP key lengths */
277 c
->pair_ciphers
= IWINFO_CIPHER_WEP40
| IWINFO_CIPHER_WEP104
;
278 c
->auth_suites
|= IWINFO_KMGMT_NONE
;
283 c
->auth_suites
|= IWINFO_KMGMT_8021x
;
288 c
->auth_suites
|= IWINFO_KMGMT_PSK
;
294 c
->auth_suites
|= IWINFO_KMGMT_8021x
;
299 c
->auth_suites
|= IWINFO_KMGMT_8021x
;
304 c
->auth_suites
|= IWINFO_KMGMT_PSK
;
309 c
->auth_suites
|= IWINFO_KMGMT_PSK
;
316 c
->enabled
= (c
->wpa_version
|| c
->auth_algs
) ? 1 : 0;
317 c
->group_ciphers
= c
->pair_ciphers
;
322 int wl_get_enctype(const char *ifname
, char *buf
)
327 if( wl_ioctl(ifname
, WLC_GET_WPA_AUTH
, &wpa
, sizeof(uint32_t)) ||
328 wl_ioctl(ifname
, WLC_GET_WSEC
, &wsec
, sizeof(uint32_t)) )
334 sprintf(algo
, "TKIP");
338 sprintf(algo
, "CCMP");
342 sprintf(algo
, "TKIP, CCMP");
349 sprintf(buf
, "%s", wsec
? "WEP" : "None");
353 sprintf(buf
, "WPA 802.1X (%s)", algo
);
357 sprintf(buf
, "WPA PSK (%s)", algo
);
361 sprintf(buf
, "802.1X (%s)", algo
);
365 sprintf(buf
, "WPA2 802.1X (%s)", algo
);
369 sprintf(buf
, "mixed WPA/WPA2 802.1X (%s)", algo
);
373 sprintf(buf
, "WPA2 PSK (%s)", algo
);
377 sprintf(buf
, "mixed WPA/WPA2 PSK (%s)", algo
);
381 sprintf(buf
, "Unknown");
387 int wl_get_assoclist(const char *ifname
, char *buf
, int *len
)
390 int ap
, infra
, passive
;
393 char devstr
[IFNAMSIZ
];
394 struct wl_maclist
*macs
;
395 struct wl_sta_rssi rssi
;
396 struct iwinfo_assoclist_entry entry
;
399 ap
= infra
= passive
= 0;
401 wl_ioctl(ifname
, WLC_GET_AP
, &ap
, sizeof(ap
));
402 wl_ioctl(ifname
, WLC_GET_INFRA
, &infra
, sizeof(infra
));
403 wl_ioctl(ifname
, WLC_GET_PASSIVE
, &passive
, sizeof(passive
));
405 if( wl_get_noise(ifname
, &noise
) )
408 if( (ap
|| infra
|| passive
) && ((macs
= wl_read_assoclist(ifname
)) != NULL
) )
410 for( i
= 0, j
= 0; i
< macs
->count
; i
++, j
+= sizeof(struct iwinfo_assoclist_entry
) )
412 memcpy(rssi
.mac
, &macs
->ea
[i
], 6);
414 if( !wl_ioctl(ifname
, WLC_GET_RSSI
, &rssi
, sizeof(struct wl_sta_rssi
)) )
415 entry
.signal
= (rssi
.rssi
- 0x100);
420 memcpy(entry
.mac
, &macs
->ea
[i
], 6);
421 memcpy(&buf
[j
], &entry
, sizeof(entry
));
428 else if( (arp
= fopen("/proc/net/arp", "r")) != NULL
)
432 while( fgets(line
, sizeof(line
), arp
) != NULL
)
434 if( sscanf(line
, "%*s 0x%*d 0x%*d %17s %*s %s", macstr
, devstr
) && !strcmp(devstr
, ifname
) )
436 rssi
.mac
[0] = strtol(&macstr
[0], NULL
, 16);
437 rssi
.mac
[1] = strtol(&macstr
[3], NULL
, 16);
438 rssi
.mac
[2] = strtol(&macstr
[6], NULL
, 16);
439 rssi
.mac
[3] = strtol(&macstr
[9], NULL
, 16);
440 rssi
.mac
[4] = strtol(&macstr
[12], NULL
, 16);
441 rssi
.mac
[5] = strtol(&macstr
[15], NULL
, 16);
443 if( !wl_ioctl(ifname
, WLC_GET_RSSI
, &rssi
, sizeof(struct wl_sta_rssi
)) )
444 entry
.signal
= (rssi
.rssi
- 0x100);
449 memcpy(entry
.mac
, rssi
.mac
, 6);
450 memcpy(&buf
[j
], &entry
, sizeof(entry
));
464 int wl_get_txpwrlist(const char *ifname
, char *buf
, int *len
)
466 struct iwinfo_txpwrlist_entry entry
;
467 uint8_t dbm
[8] = { 0, 6, 8, 10, 12, 14, 16, 18 };
468 uint8_t mw
[8] = { 1, 3, 6, 10, 15, 25, 39, 63 };
471 for( i
= 0; i
< 8; i
++ )
475 memcpy(&buf
[i
*sizeof(entry
)], &entry
, sizeof(entry
));
478 *len
= 8 * sizeof(entry
);
482 int wl_get_scanlist(const char *ifname
, char *buf
, int *len
)
484 return wext_get_scanlist(ifname
, buf
, len
);
487 int wl_get_freqlist(const char *ifname
, char *buf
, int *len
)
489 return wext_get_freqlist(ifname
, buf
, len
);
492 int wl_get_country(const char *ifname
, char *buf
)
494 char ccode
[WLC_CNTRY_BUF_SZ
];
496 if( !wl_ioctl(ifname
, WLC_GET_COUNTRY
, ccode
, WLC_CNTRY_BUF_SZ
) )
499 if( !strcmp(ccode
, "IL0") )
503 else if( !strcmp(ccode
, "YU") )
507 memcpy(buf
, ccode
, 2);
515 int wl_get_countrylist(const char *ifname
, char *buf
, int *len
)
518 char cdata
[WLC_IOCTL_MAXLEN
];
519 struct iwinfo_country_entry
*c
= (struct iwinfo_country_entry
*)buf
;
520 wl_country_list_t
*cl
= (wl_country_list_t
*)cdata
;
522 cl
->buflen
= sizeof(cdata
);
524 if( !wl_ioctl(ifname
, WLC_GET_COUNTRY_LIST
, cl
, cl
->buflen
) )
526 for( i
= 0, count
= 0; i
< cl
->count
; i
++, c
++ )
528 sprintf(c
->ccode
, &cl
->country_abbrev
[i
* WLC_CNTRY_BUF_SZ
]);
529 c
->iso3166
= c
->ccode
[0] * 256 + c
->ccode
[1];
532 if( !strcmp(c
->ccode
, "IL0") )
536 else if( !strcmp(c
->ccode
, "YU") )
540 *len
= (i
* sizeof(struct iwinfo_country_entry
));
547 int wl_get_hwmodelist(const char *ifname
, int *buf
)
549 return wext_get_hwmodelist(ifname
, buf
);
552 int wl_get_mbssid_support(const char *ifname
, int *buf
)
554 wlc_rev_info_t revinfo
;
556 /* Multi bssid support only works on corerev >= 9 */
557 if( !wl_ioctl(ifname
, WLC_GET_REVINFO
, &revinfo
, sizeof(revinfo
)) )
559 if( revinfo
.corerev
>= 9 )