2 * iwinfo - Wireless Information Library - Linux Wireless Extension 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 * Parts of this code are derived from the Linux wireless tools, iwlib.c,
19 * iwlist.c and iwconfig.c in particular.
23 #include "iwinfo_wext.h"
25 static int ioctl_socket = -1;
27 static double wext_freq2float(const struct iw_freq *in)
30 double res = (double) in->m;
31 for(i = 0; i < in->e; i++) res *= 10;
35 static int wext_ioctl(const char *ifname, int cmd, struct iwreq *wrq)
38 if( ioctl_socket == -1 )
39 ioctl_socket = socket(AF_INET, SOCK_DGRAM, 0);
41 strncpy(wrq->ifr_name, ifname, IFNAMSIZ);
42 return ioctl(ioctl_socket, cmd, wrq);
46 int wext_probe(const char *ifname)
50 if(wext_ioctl(ifname, SIOCGIWNAME, &wrq) >= 0)
56 int wext_get_mode(const char *ifname, char *buf)
60 if(wext_ioctl(ifname, SIOCGIWMODE, &wrq) >= 0)
69 sprintf(buf, "Ad-Hoc");
73 sprintf(buf, "Client");
77 sprintf(buf, "Master");
81 sprintf(buf, "Repeater");
85 sprintf(buf, "Secondary");
89 sprintf(buf, "Monitor");
93 sprintf(buf, "Unknown");
102 int wext_get_ssid(const char *ifname, char *buf)
106 wrq.u.essid.pointer = (caddr_t) buf;
107 wrq.u.essid.length = IW_ESSID_MAX_SIZE + 1;
108 wrq.u.essid.flags = 0;
110 if(wext_ioctl(ifname, SIOCGIWESSID, &wrq) >= 0)
116 int wext_get_bssid(const char *ifname, char *buf)
120 if(wext_ioctl(ifname, SIOCGIWAP, &wrq) >= 0)
122 sprintf(buf, "%02X:%02X:%02X:%02X:%02X:%02X",
123 (uint8_t)wrq.u.ap_addr.sa_data[0], (uint8_t)wrq.u.ap_addr.sa_data[1],
124 (uint8_t)wrq.u.ap_addr.sa_data[2], (uint8_t)wrq.u.ap_addr.sa_data[3],
125 (uint8_t)wrq.u.ap_addr.sa_data[4], (uint8_t)wrq.u.ap_addr.sa_data[5]);
133 int wext_get_bitrate(const char *ifname, int *buf)
137 if(wext_ioctl(ifname, SIOCGIWRATE, &wrq) >= 0)
139 *buf = wrq.u.bitrate.value;
146 int wext_get_channel(const char *ifname, int *buf)
150 if(wext_ioctl(ifname, SIOCGIWFREQ, &wrq) >= 0)
152 /* FIXME: iwlib has some strange workarounds here, maybe we need them as well... */
153 *buf = (int) wext_freq2float(&wrq.u.freq);
160 int wext_get_signal(const char *ifname, int *buf)
163 struct iw_statistics stats;
165 wrq.u.data.pointer = (caddr_t) &stats;
166 wrq.u.data.length = sizeof(struct iw_statistics);
167 wrq.u.data.flags = 1;
169 if(wext_ioctl(ifname, SIOCGIWSTATS, &wrq) >= 0)
171 *buf = (stats.qual.level - 0x100);
178 int wext_get_noise(const char *ifname, int *buf)
181 struct iw_statistics stats;
183 wrq.u.data.pointer = (caddr_t) &stats;
184 wrq.u.data.length = sizeof(struct iw_statistics);
185 wrq.u.data.flags = 1;
187 if(wext_ioctl(ifname, SIOCGIWSTATS, &wrq) >= 0)
189 *buf = (stats.qual.noise - 0x100);
196 int wext_get_quality(const char *ifname, int *buf)
199 struct iw_statistics stats;
201 wrq.u.data.pointer = (caddr_t) &stats;
202 wrq.u.data.length = sizeof(struct iw_statistics);
203 wrq.u.data.flags = 1;
205 if(wext_ioctl(ifname, SIOCGIWSTATS, &wrq) >= 0)
207 *buf = stats.qual.qual;
214 int wext_get_quality_max(const char *ifname, int *buf)
217 struct iw_range range;
219 wrq.u.data.pointer = (caddr_t) ⦥
220 wrq.u.data.length = sizeof(struct iw_range);
221 wrq.u.data.flags = 0;
223 if(wext_ioctl(ifname, SIOCGIWRANGE, &wrq) >= 0)
225 *buf = range.max_qual.qual;
232 int wext_get_enctype(const char *ifname, char *buf)
238 int wext_get_assoclist(const char *ifname, char *buf, int *len)