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))
78 int wl_get_mode(const char *ifname, char *buf)
81 int ap, infra, passive;
83 if( (ret = wl_ioctl(ifname, WLC_GET_AP, &ap, sizeof(ap))) )
86 if( (ret = wl_ioctl(ifname, WLC_GET_INFRA, &infra, sizeof(infra))) )
89 if( (ret = wl_ioctl(ifname, WLC_GET_PASSIVE, &passive, sizeof(passive))) )
93 sprintf(buf, "Monitor");
95 sprintf(buf, "Ad-Hoc");
97 sprintf(buf, "Master");
99 sprintf(buf, "Client");
104 int wl_get_ssid(const char *ifname, char *buf)
109 if( !(ret = wl_ioctl(ifname, WLC_GET_SSID, &ssid, sizeof(ssid))) )
110 memcpy(buf, ssid.ssid, ssid.ssid_len);
115 int wl_get_bssid(const char *ifname, char *buf)
120 if( !(ret = wl_ioctl(ifname, WLC_GET_BSSID, bssid, 6)) )
121 sprintf(buf, "%02X:%02X:%02X:%02X:%02X:%02X",
122 (uint8_t)bssid[0], (uint8_t)bssid[1], (uint8_t)bssid[2],
123 (uint8_t)bssid[3], (uint8_t)bssid[4], (uint8_t)bssid[5]
129 int wl_get_channel(const char *ifname, int *buf)
131 return wl_ioctl(ifname, WLC_GET_CHANNEL, buf, sizeof(buf));
134 int wl_get_frequency(const char *ifname, int *buf)
136 return wext_get_frequency(ifname, buf);
139 int wl_get_txpower(const char *ifname, int *buf)
141 return wext_get_txpower(ifname, buf);
144 int wl_get_bitrate(const char *ifname, int *buf)
149 if( !(ret = wl_ioctl(ifname, WLC_GET_RATE, &rate, sizeof(rate))) && (rate > 0))
150 *buf = ((rate / 2) * 1000) + ((rate & 1) ? 500 : 0);
155 int wl_get_signal(const char *ifname, int *buf)
157 unsigned int ap, rssi, i, rssi_count;
158 int ioctl_req_version = 0x2000;
159 char tmp[WLC_IOCTL_MAXLEN];
160 struct wl_maclist *macs = NULL;
161 wl_sta_rssi_t starssi;
163 memset(tmp, 0, WLC_IOCTL_MAXLEN);
164 memcpy(tmp, &ioctl_req_version, sizeof(ioctl_req_version));
166 wl_ioctl(ifname, WLC_GET_BSS_INFO, tmp, WLC_IOCTL_MAXLEN);
168 if( !wl_ioctl(ifname, WLC_GET_AP, &ap, sizeof(ap)) && !ap )
170 *buf = tmp[WL_BSS_RSSI_OFFSET];
174 rssi = rssi_count = 0;
176 /* Calculate average rssi from conntected stations */
177 if( (macs = wl_read_assoclist(ifname)) != NULL )
179 for( i = 0; i < macs->count; i++ )
181 memcpy(starssi.mac, &macs->ea[i], 6);
183 if( !wl_ioctl(ifname, WLC_GET_RSSI, &starssi, 12) )
185 rssi -= starssi.rssi;
193 *buf = (rssi == 0 || rssi_count == 0) ? 1 : -(rssi / rssi_count);
199 int wl_get_noise(const char *ifname, int *buf)
201 unsigned int ap, noise;
202 int ioctl_req_version = 0x2000;
203 char tmp[WLC_IOCTL_MAXLEN];
205 memset(tmp, 0, WLC_IOCTL_MAXLEN);
206 memcpy(tmp, &ioctl_req_version, sizeof(ioctl_req_version));
208 wl_ioctl(ifname, WLC_GET_BSS_INFO, tmp, WLC_IOCTL_MAXLEN);
210 if ((wl_ioctl(ifname, WLC_GET_AP, &ap, sizeof(ap)) < 0) || ap)
212 if (wl_ioctl(ifname, WLC_GET_PHY_NOISE, &noise, sizeof(noise)) < 0)
217 noise = tmp[WL_BSS_NOISE_OFFSET];
225 int wl_get_quality(const char *ifname, int *buf)
227 return wext_get_quality(ifname, buf);
230 int wl_get_quality_max(const char *ifname, int *buf)
232 return wext_get_quality_max(ifname, buf);
235 int wl_get_encryption(const char *ifname, char *buf)
237 uint32_t wsec, wauth, wpa;
238 struct iwinfo_crypto_entry *c = (struct iwinfo_crypto_entry *)buf;
240 if( wl_ioctl(ifname, WLC_GET_WPA_AUTH, &wpa, sizeof(uint32_t)) ||
241 wl_ioctl(ifname, WLC_GET_WSEC, &wsec, sizeof(uint32_t)) ||
242 wl_ioctl(ifname, WLC_GET_AUTH, &wauth, sizeof(uint32_t)) )
248 c->pair_ciphers |= IWINFO_CIPHER_TKIP;
252 c->pair_ciphers |= IWINFO_CIPHER_CCMP;
256 c->pair_ciphers |= IWINFO_CIPHER_TKIP;
257 c->pair_ciphers |= IWINFO_CIPHER_CCMP;
265 c->auth_algs |= IWINFO_AUTH_OPEN;
267 else if( wsec && wauth )
268 c->auth_algs |= IWINFO_AUTH_SHARED;
270 /* ToDo: evaluate WEP key lengths */
271 c->pair_ciphers = IWINFO_CIPHER_WEP40 | IWINFO_CIPHER_WEP104;
272 c->auth_suites |= IWINFO_KMGMT_NONE;
277 c->auth_suites |= IWINFO_KMGMT_8021x;
282 c->auth_suites |= IWINFO_KMGMT_PSK;
288 c->auth_suites |= IWINFO_KMGMT_8021x;
293 c->auth_suites |= IWINFO_KMGMT_8021x;
298 c->auth_suites |= IWINFO_KMGMT_PSK;
303 c->auth_suites |= IWINFO_KMGMT_PSK;
310 c->enabled = (c->wpa_version || c->auth_algs) ? 1 : 0;
311 c->group_ciphers = c->pair_ciphers;
316 int wl_get_enctype(const char *ifname, char *buf)
321 if( wl_ioctl(ifname, WLC_GET_WPA_AUTH, &wpa, sizeof(uint32_t)) ||
322 wl_ioctl(ifname, WLC_GET_WSEC, &wsec, sizeof(uint32_t)) )
328 sprintf(algo, "TKIP");
332 sprintf(algo, "CCMP");
336 sprintf(algo, "TKIP, CCMP");
343 sprintf(buf, "%s", wsec ? "WEP" : "None");
347 sprintf(buf, "WPA 802.1X (%s)", algo);
351 sprintf(buf, "WPA PSK (%s)", algo);
355 sprintf(buf, "802.1X (%s)", algo);
359 sprintf(buf, "WPA2 802.1X (%s)", algo);
363 sprintf(buf, "mixed WPA/WPA2 802.1X (%s)", algo);
367 sprintf(buf, "WPA2 PSK (%s)", algo);
371 sprintf(buf, "mixed WPA/WPA2 PSK (%s)", algo);
375 sprintf(buf, "Unknown");
381 int wl_get_assoclist(const char *ifname, char *buf, int *len)
384 int ap, infra, passive;
387 char devstr[IFNAMSIZ];
388 struct wl_maclist *macs;
389 struct wl_sta_rssi rssi;
390 struct iwinfo_assoclist_entry entry;
393 ap = infra = passive = 0;
395 wl_ioctl(ifname, WLC_GET_AP, &ap, sizeof(ap));
396 wl_ioctl(ifname, WLC_GET_INFRA, &infra, sizeof(infra));
397 wl_ioctl(ifname, WLC_GET_PASSIVE, &passive, sizeof(passive));
399 if( wl_get_noise(ifname, &noise) )
402 if( (ap || infra || passive) && ((macs = wl_read_assoclist(ifname)) != NULL) )
404 for( i = 0, j = 0; i < macs->count; i++, j += sizeof(struct iwinfo_assoclist_entry) )
406 memcpy(rssi.mac, &macs->ea[i], 6);
408 if( !wl_ioctl(ifname, WLC_GET_RSSI, &rssi, sizeof(struct wl_sta_rssi)) )
409 entry.signal = (rssi.rssi - 0x100);
414 memcpy(entry.mac, &macs->ea[i], 6);
415 memcpy(&buf[j], &entry, sizeof(entry));
422 else if( (arp = fopen("/proc/net/arp", "r")) != NULL )
426 while( fgets(line, sizeof(line), arp) != NULL )
428 if( sscanf(line, "%*s 0x%*d 0x%*d %17s %*s %s", macstr, devstr) && !strcmp(devstr, ifname) )
430 rssi.mac[0] = strtol(&macstr[0], NULL, 16);
431 rssi.mac[1] = strtol(&macstr[3], NULL, 16);
432 rssi.mac[2] = strtol(&macstr[6], NULL, 16);
433 rssi.mac[3] = strtol(&macstr[9], NULL, 16);
434 rssi.mac[4] = strtol(&macstr[12], NULL, 16);
435 rssi.mac[5] = strtol(&macstr[15], NULL, 16);
437 if( !wl_ioctl(ifname, WLC_GET_RSSI, &rssi, sizeof(struct wl_sta_rssi)) )
438 entry.signal = (rssi.rssi - 0x100);
443 memcpy(entry.mac, rssi.mac, 6);
444 memcpy(&buf[j], &entry, sizeof(entry));
458 int wl_get_txpwrlist(const char *ifname, char *buf, int *len)
460 struct iwinfo_txpwrlist_entry entry;
461 uint8_t dbm[8] = { 0, 6, 8, 10, 12, 14, 16, 18 };
462 uint8_t mw[8] = { 1, 3, 6, 10, 15, 25, 39, 63 };
465 for( i = 0; i < 8; i++ )
469 memcpy(&buf[i*sizeof(entry)], &entry, sizeof(entry));
472 *len = 8 * sizeof(entry);
476 int wl_get_scanlist(const char *ifname, char *buf, int *len)
478 return wext_get_scanlist(ifname, buf, len);
481 int wl_get_freqlist(const char *ifname, char *buf, int *len)
483 return wext_get_freqlist(ifname, buf, len);
486 int wl_get_country(const char *ifname, char *buf)
488 char ccode[WLC_CNTRY_BUF_SZ];
490 if( !wl_ioctl(ifname, WLC_GET_COUNTRY, ccode, WLC_CNTRY_BUF_SZ) )
493 if( !strcmp(ccode, "IL0") )
497 else if( !strcmp(ccode, "YU") )
501 memcpy(buf, ccode, 2);
509 int wl_get_countrylist(const char *ifname, char *buf, int *len)
512 char cdata[WLC_IOCTL_MAXLEN];
513 struct iwinfo_country_entry *c = (struct iwinfo_country_entry *)buf;
514 wl_country_list_t *cl = (wl_country_list_t *)cdata;
516 cl->buflen = sizeof(cdata);
518 if( !wl_ioctl(ifname, WLC_GET_COUNTRY_LIST, cl, cl->buflen) )
520 for( i = 0, count = 0; i < cl->count; i++, c++ )
522 sprintf(c->ccode, &cl->country_abbrev[i * WLC_CNTRY_BUF_SZ]);
523 c->iso3166 = c->ccode[0] * 256 + c->ccode[1];
526 if( !strcmp(c->ccode, "IL0") )
530 else if( !strcmp(c->ccode, "YU") )
534 *len = (i * sizeof(struct iwinfo_country_entry));
541 int wl_get_mbssid_support(const char *ifname, int *buf)
543 wlc_rev_info_t revinfo;
545 /* Multi bssid support only works on corerev >= 9 */
546 if( !wl_ioctl(ifname, WLC_GET_REVINFO, &revinfo, sizeof(revinfo)) )
548 if( revinfo.corerev >= 9 )