+++ /dev/null
-/*
- * iwinfo - Wireless Information Library - Linux Wireless Extension Backend
- *
- * Copyright (C) 2009 Jo-Philipp Wich <xm@subsignal.org>
- *
- * The iwinfo library is free software: you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- *
- * The iwinfo library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- * See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with the iwinfo library. If not, see http://www.gnu.org/licenses/.
- *
- * Parts of this code are derived from the Linux wireless tools, iwlib.c,
- * iwlist.c and iwconfig.c in particular.
- */
-
-#include "iwinfo.h"
-#include "iwinfo_wext.h"
-
-static double wext_freq2float(const struct iw_freq *in)
-{
- int i;
- double res = (double) in->m;
- for(i = 0; i < in->e; i++) res *= 10;
- return res;
-}
-
-static inline int wext_freq2mhz(const struct iw_freq *in)
-{
- int i;
-
- if( in->e == 6 )
- {
- return in->m;
- }
- else
- {
- return (int)(wext_freq2float(in) / 1000000);
- }
-}
-
-static inline int wext_ioctl(const char *ifname, int cmd, struct iwreq *wrq)
-{
- if( !strncmp(ifname, "mon.", 4) )
- strncpy(wrq->ifr_name, &ifname[4], IFNAMSIZ);
- else
- strncpy(wrq->ifr_name, ifname, IFNAMSIZ);
-
- return iwinfo_ioctl(cmd, wrq);
-}
-
-
-static int wext_probe(const char *ifname)
-{
- struct iwreq wrq;
-
- if(wext_ioctl(ifname, SIOCGIWNAME, &wrq) >= 0)
- return 1;
-
- return 0;
-}
-
-static void wext_close(void)
-{
- /* Nop */
-}
-
-static int wext_get_mode(const char *ifname, int *buf)
-{
- struct iwreq wrq;
-
- if(wext_ioctl(ifname, SIOCGIWMODE, &wrq) >= 0)
- {
- switch(wrq.u.mode)
- {
- case 1:
- *buf = IWINFO_OPMODE_ADHOC;
- break;
-
- case 2:
- *buf = IWINFO_OPMODE_CLIENT;
- break;
-
- case 3:
- *buf = IWINFO_OPMODE_MASTER;
- break;
-
- case 6:
- *buf = IWINFO_OPMODE_MONITOR;
- break;
-
- default:
- *buf = IWINFO_OPMODE_UNKNOWN;
- break;
- }
-
- return 0;
- }
-
- return -1;
-}
-
-static int wext_get_ssid(const char *ifname, char *buf)
-{
- struct iwreq wrq;
-
- wrq.u.essid.pointer = (caddr_t) buf;
- wrq.u.essid.length = IW_ESSID_MAX_SIZE + 1;
- wrq.u.essid.flags = 0;
-
- if(wext_ioctl(ifname, SIOCGIWESSID, &wrq) >= 0)
- return 0;
-
- return -1;
-}
-
-static int wext_get_bssid(const char *ifname, char *buf)
-{
- struct iwreq wrq;
-
- if(wext_ioctl(ifname, SIOCGIWAP, &wrq) >= 0)
- {
- sprintf(buf, "%02X:%02X:%02X:%02X:%02X:%02X",
- (uint8_t)wrq.u.ap_addr.sa_data[0], (uint8_t)wrq.u.ap_addr.sa_data[1],
- (uint8_t)wrq.u.ap_addr.sa_data[2], (uint8_t)wrq.u.ap_addr.sa_data[3],
- (uint8_t)wrq.u.ap_addr.sa_data[4], (uint8_t)wrq.u.ap_addr.sa_data[5]);
-
- return 0;
- }
-
- return -1;
-}
-
-static int wext_get_bitrate(const char *ifname, int *buf)
-{
- struct iwreq wrq;
-
- if(wext_ioctl(ifname, SIOCGIWRATE, &wrq) >= 0)
- {
- *buf = (wrq.u.bitrate.value / 1000);
- return 0;
- }
-
- return -1;
-}
-
-static int wext_get_channel(const char *ifname, int *buf)
-{
- struct iwreq wrq;
- struct iw_range range;
- double freq;
- int i;
-
- if(wext_ioctl(ifname, SIOCGIWFREQ, &wrq) >= 0)
- {
- if( wrq.u.freq.m >= 1000 )
- {
- freq = wext_freq2float(&wrq.u.freq);
- wrq.u.data.pointer = (caddr_t) ⦥
- wrq.u.data.length = sizeof(struct iw_range);
- wrq.u.data.flags = 0;
-
- if(wext_ioctl(ifname, SIOCGIWRANGE, &wrq) >= 0)
- {
- for(i = 0; i < range.num_frequency; i++)
- {
- if( wext_freq2float(&range.freq[i]) == freq )
- {
- *buf = range.freq[i].i;
- return 0;
- }
- }
- }
- }
- else
- {
- *buf = wrq.u.freq.m;
- return 0;
- }
- }
-
- return -1;
-}
-
-static int wext_get_frequency(const char *ifname, int *buf)
-{
- struct iwreq wrq;
- struct iw_range range;
- int i, channel;
-
- if(wext_ioctl(ifname, SIOCGIWFREQ, &wrq) >= 0)
- {
- /* We got a channel number instead ... */
- if( wrq.u.freq.m < 1000 )
- {
- channel = wrq.u.freq.m;
- wrq.u.data.pointer = (caddr_t) ⦥
- wrq.u.data.length = sizeof(struct iw_range);
- wrq.u.data.flags = 0;
-
- if(wext_ioctl(ifname, SIOCGIWRANGE, &wrq) >= 0)
- {
- for(i = 0; i < range.num_frequency; i++)
- {
- if( range.freq[i].i == channel )
- {
- *buf = wext_freq2mhz(&range.freq[i]);
- return 0;
- }
- }
- }
- }
- else
- {
- *buf = wext_freq2mhz(&wrq.u.freq);
- return 0;
- }
- }
-
- return -1;
-}
-
-static int wext_get_txpower(const char *ifname, int *buf)
-{
- struct iwreq wrq;
-
- wrq.u.txpower.flags = 0;
-
- if(wext_ioctl(ifname, SIOCGIWTXPOW, &wrq) >= 0)
- {
- if(wrq.u.txpower.flags & IW_TXPOW_MWATT)
- *buf = iwinfo_mw2dbm(wrq.u.txpower.value);
- else
- *buf = wrq.u.txpower.value;
-
- return 0;
- }
-
- return -1;
-}
-
-static int wext_get_signal(const char *ifname, int *buf)
-{
- struct iwreq wrq;
- struct iw_statistics stats;
-
- wrq.u.data.pointer = (caddr_t) &stats;
- wrq.u.data.length = sizeof(struct iw_statistics);
- wrq.u.data.flags = 1;
-
- if(wext_ioctl(ifname, SIOCGIWSTATS, &wrq) >= 0)
- {
- *buf = (stats.qual.updated & IW_QUAL_DBM)
- ? (stats.qual.level - 0x100) : stats.qual.level;
-
- return 0;
- }
-
- return -1;
-}
-
-static int wext_get_noise(const char *ifname, int *buf)
-{
- struct iwreq wrq;
- struct iw_statistics stats;
-
- wrq.u.data.pointer = (caddr_t) &stats;
- wrq.u.data.length = sizeof(struct iw_statistics);
- wrq.u.data.flags = 1;
-
- if(wext_ioctl(ifname, SIOCGIWSTATS, &wrq) >= 0)
- {
- *buf = (stats.qual.updated & IW_QUAL_DBM)
- ? (stats.qual.noise - 0x100) : stats.qual.noise;
-
- return 0;
- }
-
- return -1;
-}
-
-static int wext_get_quality(const char *ifname, int *buf)
-{
- struct iwreq wrq;
- struct iw_statistics stats;
-
- wrq.u.data.pointer = (caddr_t) &stats;
- wrq.u.data.length = sizeof(struct iw_statistics);
- wrq.u.data.flags = 1;
-
- if(wext_ioctl(ifname, SIOCGIWSTATS, &wrq) >= 0)
- {
- *buf = stats.qual.qual;
- return 0;
- }
-
- return -1;
-}
-
-static int wext_get_quality_max(const char *ifname, int *buf)
-{
- struct iwreq wrq;
- struct iw_range range;
-
- wrq.u.data.pointer = (caddr_t) ⦥
- wrq.u.data.length = sizeof(struct iw_range);
- wrq.u.data.flags = 0;
-
- if(wext_ioctl(ifname, SIOCGIWRANGE, &wrq) >= 0)
- {
- *buf = range.max_qual.qual;
- return 0;
- }
-
- return -1;
-}
-
-static int wext_get_assoclist(const char *ifname, char *buf, int *len)
-{
- /* Stub */
- return -1;
-}
-
-static int wext_get_txpwrlist(const char *ifname, char *buf, int *len)
-{
- struct iwreq wrq;
- struct iw_range range;
- struct iwinfo_txpwrlist_entry entry;
- int i;
-
- wrq.u.data.pointer = (caddr_t) ⦥
- wrq.u.data.length = sizeof(struct iw_range);
- wrq.u.data.flags = 0;
-
- if( (wext_ioctl(ifname, SIOCGIWRANGE, &wrq) >= 0) &&
- (range.num_txpower > 0) && (range.num_txpower <= IW_MAX_TXPOWER) &&
- !(range.txpower_capa & IW_TXPOW_RELATIVE)
- ) {
- for( i = 0; i < range.num_txpower; i++ )
- {
- if( range.txpower_capa & IW_TXPOW_MWATT )
- {
- entry.dbm = iwinfo_mw2dbm(range.txpower[i]);
- entry.mw = range.txpower[i];
- }
-
- /* Madwifi does neither set mW not dBm caps, also iwlist assumes
- * dBm if mW is not set, so don't check here... */
- else /* if( range.txpower_capa & IW_TXPOW_DBM ) */
- {
- entry.dbm = range.txpower[i];
- entry.mw = iwinfo_dbm2mw(range.txpower[i]);
- }
-
- memcpy(&buf[i*sizeof(entry)], &entry, sizeof(entry));
- }
-
- *len = i * sizeof(entry);
- return 0;
- }
-
- return -1;
-}
-
-static int wext_get_freqlist(const char *ifname, char *buf, int *len)
-{
- struct iwreq wrq;
- struct iw_range range;
- struct iwinfo_freqlist_entry entry;
- int i, bl;
-
- wrq.u.data.pointer = (caddr_t) ⦥
- wrq.u.data.length = sizeof(struct iw_range);
- wrq.u.data.flags = 0;
-
- if(wext_ioctl(ifname, SIOCGIWRANGE, &wrq) >= 0)
- {
- bl = 0;
-
- for(i = 0; i < range.num_frequency; i++)
- {
- entry.mhz = wext_freq2mhz(&range.freq[i]);
- entry.channel = range.freq[i].i;
- entry.restricted = 0;
-
- memcpy(&buf[bl], &entry, sizeof(struct iwinfo_freqlist_entry));
- bl += sizeof(struct iwinfo_freqlist_entry);
- }
-
- *len = bl;
- return 0;
- }
-
- return -1;
-}
-
-static int wext_get_country(const char *ifname, char *buf)
-{
- sprintf(buf, "00");
- return 0;
-}
-
-static int wext_get_countrylist(const char *ifname, char *buf, int *len)
-{
- /* Stub */
- return -1;
-}
-
-static int wext_get_hwmodelist(const char *ifname, int *buf)
-{
- char chans[IWINFO_BUFSIZE] = { 0 };
- struct iwinfo_freqlist_entry *e = NULL;
- int len = 0;
-
- *buf = 0;
-
- if( !wext_get_freqlist(ifname, chans, &len) )
- {
- for( e = (struct iwinfo_freqlist_entry *)chans; e->channel; e++ )
- {
- if( e->channel <= 14 )
- {
- *buf |= IWINFO_80211_B;
- *buf |= IWINFO_80211_G;
- }
- else
- {
- *buf |= IWINFO_80211_A;
- }
- }
-
- return 0;
- }
-
- return -1;
-}
-
-static int wext_get_encryption(const char *ifname, char *buf)
-{
- /* No reliable crypto info in wext */
- return -1;
-}
-
-static int wext_get_phyname(const char *ifname, char *buf)
-{
- /* No suitable api in wext */
- strcpy(buf, ifname);
- return 0;
-}
-
-static int wext_get_mbssid_support(const char *ifname, int *buf)
-{
- /* No multi bssid support atm */
- return -1;
-}
-
-static char * wext_sysfs_ifname_file(const char *ifname, const char *path)
-{
- FILE *f;
- static char buf[128];
- char *rv = NULL;
-
- snprintf(buf, sizeof(buf), "/sys/class/net/%s/%s", ifname, path);
-
- if ((f = fopen(buf, "r")) != NULL)
- {
- memset(buf, 0, sizeof(buf));
-
- if (fread(buf, 1, sizeof(buf), f))
- rv = buf;
-
- fclose(f);
- }
-
- return rv;
-}
-
-static int wext_get_hardware_id(const char *ifname, char *buf)
-{
- char *data;
- struct iwinfo_hardware_id *id = (struct iwinfo_hardware_id *)buf;
-
- memset(id, 0, sizeof(struct iwinfo_hardware_id));
-
- data = wext_sysfs_ifname_file(ifname, "device/vendor");
- if (data)
- id->vendor_id = strtoul(data, NULL, 16);
-
- data = wext_sysfs_ifname_file(ifname, "device/device");
- if (data)
- id->device_id = strtoul(data, NULL, 16);
-
- data = wext_sysfs_ifname_file(ifname, "device/subsystem_device");
- if (data)
- id->subsystem_device_id = strtoul(data, NULL, 16);
-
- data = wext_sysfs_ifname_file(ifname, "device/subsystem_vendor");
- if (data)
- id->subsystem_vendor_id = strtoul(data, NULL, 16);
-
- return (id->vendor_id > 0 && id->device_id > 0) ? 0 : -1;
-}
-
-static int wext_get_hardware_name(const char *ifname, char *buf)
-{
- sprintf(buf, "Generic WEXT");
- return 0;
-}
-
-static int wext_get_txpower_offset(const char *ifname, int *buf)
-{
- /* Stub */
- *buf = 0;
- return -1;
-}
-
-static int wext_get_frequency_offset(const char *ifname, int *buf)
-{
- /* Stub */
- *buf = 0;
- return -1;
-}
-
-const struct iwinfo_ops wext_ops = {
- .name = "wext",
- .probe = wext_probe,
- .channel = wext_get_channel,
- .frequency = wext_get_frequency,
- .frequency_offset = wext_get_frequency_offset,
- .txpower = wext_get_txpower,
- .txpower_offset = wext_get_txpower_offset,
- .bitrate = wext_get_bitrate,
- .signal = wext_get_signal,
- .noise = wext_get_noise,
- .quality = wext_get_quality,
- .quality_max = wext_get_quality_max,
- .mbssid_support = wext_get_mbssid_support,
- .hwmodelist = wext_get_hwmodelist,
- .mode = wext_get_mode,
- .ssid = wext_get_ssid,
- .bssid = wext_get_bssid,
- .country = wext_get_country,
- .hardware_id = wext_get_hardware_id,
- .hardware_name = wext_get_hardware_name,
- .encryption = wext_get_encryption,
- .phyname = wext_get_phyname,
- .assoclist = wext_get_assoclist,
- .txpwrlist = wext_get_txpwrlist,
- .scanlist = wext_get_scanlist,
- .freqlist = wext_get_freqlist,
- .countrylist = wext_get_countrylist,
- .close = wext_close
-};
projects / openwrt.git / blobdiff