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 )
33 ioctl_socket = socket(AF_INET, SOCK_DGRAM, 0);
39 strncpy(ifr.ifr_name, name, IFNAMSIZ);
40 ifr.ifr_data = (caddr_t) &ioc;
42 return ioctl(ioctl_socket, SIOCDEVPRIVATE, &ifr);
45 static struct wl_maclist * wl_read_assoclist(const char *ifname)
47 struct wl_maclist *macs;
48 int maclen = 4 + WL_MAX_STA_COUNT * 6;
50 if( (macs = (struct wl_maclist *) malloc(maclen)) != NULL )
52 memset(macs, 0, maclen);
53 macs->count = WL_MAX_STA_COUNT;
55 if( !wl_ioctl(ifname, WLC_GET_ASSOCLIST, macs, maclen) )
65 int wl_probe(const char *ifname)
69 if( !wl_ioctl(ifname, WLC_GET_MAGIC, &magic, sizeof(magic)) && (magic == WLC_IOCTL_MAGIC))
75 int wl_get_mode(const char *ifname, char *buf)
78 int ap, infra, passive;
80 if( (ret = wl_ioctl(ifname, WLC_GET_AP, &ap, sizeof(ap))) )
83 if( (ret = wl_ioctl(ifname, WLC_GET_INFRA, &infra, sizeof(infra))) )
86 if( (ret = wl_ioctl(ifname, WLC_GET_PASSIVE, &passive, sizeof(passive))) )
90 sprintf(buf, "Monitor");
92 sprintf(buf, "Ad-Hoc");
94 sprintf(buf, "Master");
96 sprintf(buf, "Client");
101 int wl_get_ssid(const char *ifname, char *buf)
106 if( !(ret = wl_ioctl(ifname, WLC_GET_SSID, &ssid, sizeof(ssid))) )
107 memcpy(buf, ssid.ssid, ssid.ssid_len);
112 int wl_get_bssid(const char *ifname, char *buf)
117 if( !(ret = wl_ioctl(ifname, WLC_GET_BSSID, bssid, 6)) )
118 sprintf(buf, "%02X:%02X:%02X:%02X:%02X:%02X",
119 (uint8_t)bssid[0], (uint8_t)bssid[1], (uint8_t)bssid[2],
120 (uint8_t)bssid[3], (uint8_t)bssid[4], (uint8_t)bssid[5]
126 int wl_get_channel(const char *ifname, int *buf)
128 return wl_ioctl(ifname, WLC_GET_CHANNEL, buf, sizeof(buf));
131 int wl_get_bitrate(const char *ifname, int *buf)
136 if( !(ret = wl_ioctl(ifname, WLC_GET_RATE, &rate, sizeof(rate))) && (rate > 0))
142 int wl_get_signal(const char *ifname, int *buf)
144 unsigned int ap, rssi, i, rssi_count;
145 int ioctl_req_version = 0x2000;
146 char tmp[WLC_IOCTL_MAXLEN];
147 struct wl_maclist *macs = NULL;
148 wl_sta_rssi_t starssi;
150 memset(tmp, 0, WLC_IOCTL_MAXLEN);
151 memcpy(tmp, &ioctl_req_version, sizeof(ioctl_req_version));
153 wl_ioctl(ifname, WLC_GET_BSS_INFO, tmp, WLC_IOCTL_MAXLEN);
155 if( !wl_ioctl(ifname, WLC_GET_AP, &ap, sizeof(ap)) && !ap )
157 *buf = tmp[WL_BSS_RSSI_OFFSET];
161 rssi = rssi_count = 0;
163 /* Calculate average rssi from conntected stations */
164 if( (macs = wl_read_assoclist(ifname)) != NULL )
166 for( i = 0; i < macs->count; i++ )
168 memcpy(starssi.mac, &macs->ea[i], 6);
170 if( !wl_ioctl(ifname, WLC_GET_RSSI, &starssi, 12) )
172 rssi -= starssi.rssi;
180 *buf = (rssi == 0 || rssi_count == 0) ? 1 : -(rssi / rssi_count);
186 int wl_get_noise(const char *ifname, int *buf)
188 unsigned int ap, noise;
189 int ioctl_req_version = 0x2000;
190 char tmp[WLC_IOCTL_MAXLEN];
192 memset(tmp, 0, WLC_IOCTL_MAXLEN);
193 memcpy(tmp, &ioctl_req_version, sizeof(ioctl_req_version));
195 wl_ioctl(ifname, WLC_GET_BSS_INFO, tmp, WLC_IOCTL_MAXLEN);
197 if ((wl_ioctl(ifname, WLC_GET_AP, &ap, sizeof(ap)) < 0) || ap)
199 if (wl_ioctl(ifname, WLC_GET_PHY_NOISE, &noise, sizeof(noise)) < 0)
204 noise = tmp[WL_BSS_NOISE_OFFSET];
212 int wl_get_quality(const char *ifname, int *buf)
214 return wext_get_quality(ifname, buf);
217 int wl_get_quality_max(const char *ifname, int *buf)
219 return wext_get_quality_max(ifname, buf);
222 int wl_get_enctype(const char *ifname, char *buf)
227 if( wl_ioctl(ifname, WLC_GET_WPA_AUTH, &wpa, sizeof(uint32_t)) ||
228 wl_ioctl(ifname, WLC_GET_WSEC, &wsec, sizeof(uint32_t)) )
234 sprintf(algo, "TKIP");
238 sprintf(algo, "CCMP");
242 sprintf(algo, "TKIP, CCMP");
249 sprintf(buf, "%s", wsec ? "WEP" : "None");
253 sprintf(buf, "WPA 802.1X (%s)", algo);
257 sprintf(buf, "WPA PSK (%s)", algo);
261 sprintf(buf, "802.1X (%s)", algo);
265 sprintf(buf, "WPA2 802.1X (%s)", algo);
269 sprintf(buf, "mixed WPA/WPA2 802.1X (%s)", algo);
273 sprintf(buf, "WPA2 PSK (%s)", algo);
277 sprintf(buf, "mixed WPA/WPA2 PSK (%s)", algo);
281 sprintf(buf, "Unkown");
287 int wl_get_assoclist(const char *ifname, char *buf, int *len)
290 int ap, infra, passive;
293 char devstr[IFNAMSIZ];
294 struct wl_maclist *macs;
295 struct wl_sta_rssi rssi;
296 struct iwinfo_assoclist_entry entry;
299 ap = infra = passive = 0;
301 wl_ioctl(ifname, WLC_GET_AP, &ap, sizeof(ap));
302 wl_ioctl(ifname, WLC_GET_INFRA, &infra, sizeof(infra));
303 wl_ioctl(ifname, WLC_GET_PASSIVE, &passive, sizeof(passive));
305 if( wl_get_noise(ifname, &noise) )
308 if( (ap || infra || passive) && ((macs = wl_read_assoclist(ifname)) != NULL) )
310 for( i = 0, j = 0; i < macs->count; i++, j += sizeof(struct iwinfo_assoclist_entry) )
312 memcpy(rssi.mac, &macs->ea[i], 6);
314 if( !wl_ioctl(ifname, WLC_GET_RSSI, &rssi, sizeof(struct wl_sta_rssi)) )
315 entry.signal = (rssi.rssi - 0x100);
320 memcpy(entry.mac, &macs->ea[i], 6);
321 memcpy(&buf[j], &entry, sizeof(entry));
328 else if( (arp = fopen("/proc/net/arp", "r")) != NULL )
332 while( fgets(line, sizeof(line), arp) != NULL )
334 if( sscanf(line, "%*s 0x%*d 0x%*d %17s %*s %s", macstr, devstr) && !strcmp(devstr, ifname) )
336 rssi.mac[0] = strtol(&macstr[0], NULL, 16);
337 rssi.mac[1] = strtol(&macstr[3], NULL, 16);
338 rssi.mac[2] = strtol(&macstr[6], NULL, 16);
339 rssi.mac[3] = strtol(&macstr[9], NULL, 16);
340 rssi.mac[4] = strtol(&macstr[12], NULL, 16);
341 rssi.mac[5] = strtol(&macstr[15], NULL, 16);
343 if( !wl_ioctl(ifname, WLC_GET_RSSI, &rssi, sizeof(struct wl_sta_rssi)) )
344 entry.signal = (rssi.rssi - 0x100);
349 memcpy(entry.mac, rssi.mac, 6);
350 memcpy(&buf[j], &entry, sizeof(entry));