731 lines
15 KiB
C
731 lines
15 KiB
C
/*
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* iwinfo - Wireless Information Library - Broadcom wl.o Backend
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*
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* Copyright (C) 2009 Jo-Philipp Wich <xm@subsignal.org>
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*
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* The iwinfo library is free software: you can redistribute it and/or
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* modify it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation.
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*
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* The iwinfo library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with the iwinfo library. If not, see http://www.gnu.org/licenses/.
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*
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* This code is based on the wlc.c utility published by OpenWrt.org .
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*/
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#include "iwinfo.h"
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#include "api/broadcom.h"
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static int wl_ioctl(const char *name, int cmd, void *buf, int len)
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{
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struct ifreq ifr;
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wl_ioctl_t ioc;
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/* do it */
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ioc.cmd = cmd;
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ioc.buf = buf;
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ioc.len = len;
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strncpy(ifr.ifr_name, name, IFNAMSIZ);
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ifr.ifr_data = (caddr_t) &ioc;
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return iwinfo_ioctl(SIOCDEVPRIVATE, &ifr);
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}
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static int wl_iovar(const char *name, const char *cmd, const char *arg,
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int arglen, void *buf, int buflen)
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{
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int cmdlen = strlen(cmd) + 1;
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memcpy(buf, cmd, cmdlen);
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if (arg && arglen > 0)
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memcpy(buf + cmdlen, arg, arglen);
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return wl_ioctl(name, WLC_GET_VAR, buf, buflen);
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}
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static struct wl_maclist * wl_read_assoclist(const char *ifname)
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{
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struct wl_maclist *macs;
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int maclen = 4 + WL_MAX_STA_COUNT * 6;
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if (strstr(ifname, "wds"))
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return NULL;
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if ((macs = (struct wl_maclist *) malloc(maclen)) != NULL)
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{
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memset(macs, 0, maclen);
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macs->count = WL_MAX_STA_COUNT;
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if (!wl_ioctl(ifname, WLC_GET_ASSOCLIST, macs, maclen))
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return macs;
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free(macs);
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}
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return NULL;
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}
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static int wl_probe(const char *ifname)
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{
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int magic;
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return (!wl_ioctl(ifname, WLC_GET_MAGIC, &magic, sizeof(magic)) &&
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(magic == WLC_IOCTL_MAGIC));
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}
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static void wl_close(void)
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{
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/* Nop */
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}
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static int wl_get_mode(const char *ifname, int *buf)
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{
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int ret = -1;
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int ap, infra, passive;
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if ((ret = wl_ioctl(ifname, WLC_GET_AP, &ap, sizeof(ap))))
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return ret;
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if ((ret = wl_ioctl(ifname, WLC_GET_INFRA, &infra, sizeof(infra))))
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return ret;
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if ((ret = wl_ioctl(ifname, WLC_GET_PASSIVE, &passive, sizeof(passive))))
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return ret;
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if (passive)
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*buf = IWINFO_OPMODE_MONITOR;
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else if (!infra)
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*buf = IWINFO_OPMODE_ADHOC;
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else if (ap)
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*buf = IWINFO_OPMODE_MASTER;
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else
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*buf = IWINFO_OPMODE_CLIENT;
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return 0;
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}
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static int wl_get_ssid(const char *ifname, char *buf)
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{
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int ret = -1;
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wlc_ssid_t ssid;
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if (!(ret = wl_ioctl(ifname, WLC_GET_SSID, &ssid, sizeof(ssid))))
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memcpy(buf, ssid.ssid, ssid.ssid_len);
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return ret;
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}
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static int wl_get_bssid(const char *ifname, char *buf)
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{
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int ret = -1;
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char bssid[6];
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if (!(ret = wl_ioctl(ifname, WLC_GET_BSSID, bssid, 6)))
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sprintf(buf, "%02X:%02X:%02X:%02X:%02X:%02X",
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(uint8_t)bssid[0], (uint8_t)bssid[1], (uint8_t)bssid[2],
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(uint8_t)bssid[3], (uint8_t)bssid[4], (uint8_t)bssid[5]
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);
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return ret;
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}
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static int wl_get_channel(const char *ifname, int *buf)
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{
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return wl_ioctl(ifname, WLC_GET_CHANNEL, buf, sizeof(buf));
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}
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static int wl_get_frequency(const char *ifname, int *buf)
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{
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return wext_ops.frequency(ifname, buf);
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}
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static int wl_get_txpower(const char *ifname, int *buf)
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{
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/* WLC_GET_VAR "qtxpower" */
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return wext_ops.txpower(ifname, buf);
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}
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static int wl_get_bitrate(const char *ifname, int *buf)
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{
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int ret = -1;
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int rate = 0;
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if( !(ret = wl_ioctl(ifname, WLC_GET_RATE, &rate, sizeof(rate))) && (rate > 0))
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*buf = ((rate / 2) * 1000) + ((rate & 1) ? 500 : 0);
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return ret;
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}
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static int wl_get_signal(const char *ifname, int *buf)
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{
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unsigned int ap, rssi, i, rssi_count;
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int ioctl_req_version = 0x2000;
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char tmp[WLC_IOCTL_MAXLEN];
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struct wl_maclist *macs = NULL;
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wl_sta_rssi_t starssi;
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memset(tmp, 0, WLC_IOCTL_MAXLEN);
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memcpy(tmp, &ioctl_req_version, sizeof(ioctl_req_version));
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wl_ioctl(ifname, WLC_GET_BSS_INFO, tmp, WLC_IOCTL_MAXLEN);
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if (!wl_ioctl(ifname, WLC_GET_AP, &ap, sizeof(ap)) && !ap)
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{
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*buf = tmp[WL_BSS_RSSI_OFFSET];
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}
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else
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{
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rssi = rssi_count = 0;
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/* Calculate average rssi from conntected stations */
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if ((macs = wl_read_assoclist(ifname)) != NULL)
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{
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for (i = 0; i < macs->count; i++)
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{
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memcpy(starssi.mac, &macs->ea[i], 6);
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if (!wl_ioctl(ifname, WLC_GET_RSSI, &starssi, 12))
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{
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rssi -= starssi.rssi;
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rssi_count++;
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}
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}
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free(macs);
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}
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*buf = (rssi == 0 || rssi_count == 0) ? 1 : -(rssi / rssi_count);
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}
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return 0;
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}
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static int wl_get_noise(const char *ifname, int *buf)
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{
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unsigned int ap, noise;
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int ioctl_req_version = 0x2000;
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char tmp[WLC_IOCTL_MAXLEN];
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memset(tmp, 0, WLC_IOCTL_MAXLEN);
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memcpy(tmp, &ioctl_req_version, sizeof(ioctl_req_version));
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wl_ioctl(ifname, WLC_GET_BSS_INFO, tmp, WLC_IOCTL_MAXLEN);
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if ((wl_ioctl(ifname, WLC_GET_AP, &ap, sizeof(ap)) < 0) || ap)
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{
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if (wl_ioctl(ifname, WLC_GET_PHY_NOISE, &noise, sizeof(noise)) < 0)
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noise = 0;
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}
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else
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{
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noise = tmp[WL_BSS_NOISE_OFFSET];
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}
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*buf = noise;
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return 0;
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}
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static int wl_get_quality(const char *ifname, int *buf)
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{
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return wext_ops.quality(ifname, buf);
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}
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static int wl_get_quality_max(const char *ifname, int *buf)
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{
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return wext_ops.quality_max(ifname, buf);
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}
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static int wl_get_encryption(const char *ifname, char *buf)
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{
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uint32_t wsec, wauth, wpa;
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struct iwinfo_crypto_entry *c = (struct iwinfo_crypto_entry *)buf;
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if( wl_ioctl(ifname, WLC_GET_WPA_AUTH, &wpa, sizeof(uint32_t)) ||
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wl_ioctl(ifname, WLC_GET_WSEC, &wsec, sizeof(uint32_t)) ||
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wl_ioctl(ifname, WLC_GET_AUTH, &wauth, sizeof(uint32_t)) )
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return -1;
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switch(wsec)
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{
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case 2:
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c->pair_ciphers |= IWINFO_CIPHER_TKIP;
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break;
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case 4:
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c->pair_ciphers |= IWINFO_CIPHER_CCMP;
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break;
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case 6:
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c->pair_ciphers |= IWINFO_CIPHER_TKIP;
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c->pair_ciphers |= IWINFO_CIPHER_CCMP;
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break;
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}
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switch(wpa)
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{
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case 0:
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if (wsec && !wauth)
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c->auth_algs |= IWINFO_AUTH_OPEN;
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else if (wsec && wauth)
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c->auth_algs |= IWINFO_AUTH_SHARED;
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/* ToDo: evaluate WEP key lengths */
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c->pair_ciphers = IWINFO_CIPHER_WEP40 | IWINFO_CIPHER_WEP104;
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c->auth_suites |= IWINFO_KMGMT_NONE;
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break;
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case 2:
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c->wpa_version = 1;
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c->auth_suites |= IWINFO_KMGMT_8021x;
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break;
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case 4:
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c->wpa_version = 1;
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c->auth_suites |= IWINFO_KMGMT_PSK;
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break;
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case 32:
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case 64:
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c->wpa_version = 2;
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c->auth_suites |= IWINFO_KMGMT_8021x;
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break;
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case 66:
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c->wpa_version = 3;
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c->auth_suites |= IWINFO_KMGMT_8021x;
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break;
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case 128:
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c->wpa_version = 2;
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c->auth_suites |= IWINFO_KMGMT_PSK;
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break;
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case 132:
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c->wpa_version = 3;
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c->auth_suites |= IWINFO_KMGMT_PSK;
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break;
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default:
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break;
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}
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c->enabled = (c->wpa_version || c->auth_algs) ? 1 : 0;
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c->group_ciphers = c->pair_ciphers;
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return 0;
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}
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static int wl_get_phyname(const char *ifname, char *buf)
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{
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char *p;
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strcpy(buf, ifname);
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if ((p = strchr(buf, '.')) != NULL)
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*p = 0;
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return 0;
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}
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static int wl_get_enctype(const char *ifname, char *buf)
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{
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uint32_t wsec, wpa;
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char algo[11];
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if( wl_ioctl(ifname, WLC_GET_WPA_AUTH, &wpa, sizeof(uint32_t)) ||
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wl_ioctl(ifname, WLC_GET_WSEC, &wsec, sizeof(uint32_t)) )
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return -1;
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switch(wsec)
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{
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case 2:
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sprintf(algo, "TKIP");
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break;
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case 4:
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sprintf(algo, "CCMP");
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break;
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case 6:
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sprintf(algo, "TKIP, CCMP");
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break;
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}
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switch(wpa)
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{
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case 0:
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sprintf(buf, "%s", wsec ? "WEP" : "None");
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break;
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case 2:
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sprintf(buf, "WPA 802.1X (%s)", algo);
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break;
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case 4:
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sprintf(buf, "WPA PSK (%s)", algo);
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break;
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case 32:
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sprintf(buf, "802.1X (%s)", algo);
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break;
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case 64:
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sprintf(buf, "WPA2 802.1X (%s)", algo);
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break;
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case 66:
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sprintf(buf, "mixed WPA/WPA2 802.1X (%s)", algo);
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break;
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case 128:
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sprintf(buf, "WPA2 PSK (%s)", algo);
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break;
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case 132:
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sprintf(buf, "mixed WPA/WPA2 PSK (%s)", algo);
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break;
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default:
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sprintf(buf, "Unknown");
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}
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return 0;
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}
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static void wl_get_assoclist_cb(const char *ifname,
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struct iwinfo_assoclist_entry *e)
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{
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wl_sta_info_t sta = { 0 };
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if (!wl_iovar(ifname, "sta_info", e->mac, 6, &sta, sizeof(sta)) &&
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(sta.ver >= 2))
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{
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e->inactive = sta.idle * 1000;
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e->rx_packets = sta.rx_ucast_pkts;
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e->tx_packets = sta.tx_pkts;
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e->rx_rate.rate = sta.rx_rate;
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e->tx_rate.rate = sta.tx_rate;
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/* ToDo: 11n */
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e->rx_rate.mcs = -1;
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e->tx_rate.mcs = -1;
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}
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}
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static int wl_get_assoclist(const char *ifname, char *buf, int *len)
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{
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int i, j, noise;
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int ap, infra, passive;
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char line[128];
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char macstr[18];
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char devstr[IFNAMSIZ];
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struct wl_maclist *macs;
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struct wl_sta_rssi rssi;
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struct iwinfo_assoclist_entry entry;
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FILE *arp;
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ap = infra = passive = 0;
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wl_ioctl(ifname, WLC_GET_AP, &ap, sizeof(ap));
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wl_ioctl(ifname, WLC_GET_INFRA, &infra, sizeof(infra));
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wl_ioctl(ifname, WLC_GET_PASSIVE, &passive, sizeof(passive));
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if (wl_get_noise(ifname, &noise))
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noise = 0;
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if ((ap || infra || passive) && ((macs = wl_read_assoclist(ifname)) != NULL))
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{
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for (i = 0, j = 0; i < macs->count; i++, j += sizeof(struct iwinfo_assoclist_entry))
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{
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memset(&entry, 0, sizeof(entry));
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memcpy(rssi.mac, &macs->ea[i], 6);
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if (!wl_ioctl(ifname, WLC_GET_RSSI, &rssi, sizeof(struct wl_sta_rssi)))
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entry.signal = (rssi.rssi - 0x100);
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else
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entry.signal = 0;
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entry.noise = noise;
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memcpy(entry.mac, &macs->ea[i], 6);
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wl_get_assoclist_cb(ifname, &entry);
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memcpy(&buf[j], &entry, sizeof(entry));
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}
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*len = j;
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free(macs);
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return 0;
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}
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else if ((arp = fopen("/proc/net/arp", "r")) != NULL)
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{
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j = 0;
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while (fgets(line, sizeof(line), arp) != NULL)
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{
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if (sscanf(line, "%*s 0x%*d 0x%*d %17s %*s %s", macstr, devstr) && !strcmp(devstr, ifname))
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{
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rssi.mac[0] = strtol(&macstr[0], NULL, 16);
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rssi.mac[1] = strtol(&macstr[3], NULL, 16);
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rssi.mac[2] = strtol(&macstr[6], NULL, 16);
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rssi.mac[3] = strtol(&macstr[9], NULL, 16);
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rssi.mac[4] = strtol(&macstr[12], NULL, 16);
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rssi.mac[5] = strtol(&macstr[15], NULL, 16);
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if (!wl_ioctl(ifname, WLC_GET_RSSI, &rssi, sizeof(struct wl_sta_rssi)))
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entry.signal = (rssi.rssi - 0x100);
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else
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entry.signal = 0;
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entry.noise = noise;
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memcpy(entry.mac, rssi.mac, 6);
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memcpy(&buf[j], &entry, sizeof(entry));
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j += sizeof(entry);
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}
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}
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*len = j;
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(void) fclose(arp);
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return 0;
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}
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return -1;
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}
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static int wl_get_txpwrlist(const char *ifname, char *buf, int *len)
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{
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struct iwinfo_txpwrlist_entry entry;
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uint8_t dbm[11] = { 0, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24 };
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uint8_t mw[11] = { 1, 3, 6, 10, 15, 25, 39, 63, 100, 158, 251 };
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int i;
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for (i = 0; i < 11; i++)
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{
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entry.dbm = dbm[i];
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entry.mw = mw[i];
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memcpy(&buf[i*sizeof(entry)], &entry, sizeof(entry));
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}
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*len = 11 * sizeof(entry);
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return 0;
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}
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static int wl_get_scanlist(const char *ifname, char *buf, int *len)
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{
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return wext_ops.scanlist(ifname, buf, len);
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}
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static int wl_get_freqlist(const char *ifname, char *buf, int *len)
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{
|
|
return wext_ops.freqlist(ifname, buf, len);
|
|
}
|
|
|
|
static int wl_get_country(const char *ifname, char *buf)
|
|
{
|
|
char ccode[WLC_CNTRY_BUF_SZ];
|
|
|
|
if (!wl_ioctl(ifname, WLC_GET_COUNTRY, ccode, WLC_CNTRY_BUF_SZ))
|
|
{
|
|
/* IL0 -> World */
|
|
if (!strcmp(ccode, "IL0"))
|
|
sprintf(buf, "00");
|
|
|
|
/* YU -> RS */
|
|
else if (!strcmp(ccode, "YU"))
|
|
sprintf(buf, "RS");
|
|
|
|
else
|
|
memcpy(buf, ccode, 2);
|
|
|
|
return 0;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
static int wl_get_countrylist(const char *ifname, char *buf, int *len)
|
|
{
|
|
int i, count;
|
|
char cdata[WLC_IOCTL_MAXLEN];
|
|
struct iwinfo_country_entry *c = (struct iwinfo_country_entry *)buf;
|
|
wl_country_list_t *cl = (wl_country_list_t *)cdata;
|
|
|
|
cl->buflen = sizeof(cdata);
|
|
|
|
if (!wl_ioctl(ifname, WLC_GET_COUNTRY_LIST, cl, cl->buflen))
|
|
{
|
|
for (i = 0, count = 0; i < cl->count; i++, c++)
|
|
{
|
|
snprintf(c->ccode, sizeof(c->ccode), "%s", &cl->country_abbrev[i * WLC_CNTRY_BUF_SZ]);
|
|
c->iso3166 = c->ccode[0] * 256 + c->ccode[1];
|
|
|
|
/* IL0 -> World */
|
|
if (!strcmp(c->ccode, "IL0"))
|
|
c->iso3166 = 0x3030;
|
|
|
|
/* YU -> RS */
|
|
else if (!strcmp(c->ccode, "YU"))
|
|
c->iso3166 = 0x5253;
|
|
}
|
|
|
|
*len = (i * sizeof(struct iwinfo_country_entry));
|
|
return 0;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
static int wl_get_hwmodelist(const char *ifname, int *buf)
|
|
{
|
|
int phytype;
|
|
uint i, band[WLC_BAND_ALL], bands;
|
|
|
|
if (!wl_ioctl(ifname, WLC_GET_PHYTYPE, &phytype, sizeof(phytype)) &&
|
|
!wl_ioctl(ifname, WLC_GET_BANDLIST, band, sizeof(band)))
|
|
{
|
|
switch (phytype)
|
|
{
|
|
case WLC_PHY_TYPE_A:
|
|
*buf = IWINFO_80211_A;
|
|
break;
|
|
case WLC_PHY_TYPE_B:
|
|
*buf = IWINFO_80211_B;
|
|
break;
|
|
case WLC_PHY_TYPE_LP:
|
|
case WLC_PHY_TYPE_G:
|
|
case WLC_PHY_TYPE_N:
|
|
bands = 0;
|
|
for (i = 1; i <= band[0]; i++)
|
|
{
|
|
bands |= band[i];
|
|
}
|
|
*buf = 0;
|
|
if (bands & WLC_BAND_5G)
|
|
*buf |= IWINFO_80211_A;
|
|
if (bands & WLC_BAND_2G)
|
|
{
|
|
*buf |= IWINFO_80211_B;
|
|
*buf |= IWINFO_80211_G;
|
|
}
|
|
if (phytype == WLC_PHY_TYPE_N)
|
|
*buf |= IWINFO_80211_N;
|
|
break;
|
|
default:
|
|
return -1;
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
static int wl_get_mbssid_support(const char *ifname, int *buf)
|
|
{
|
|
wlc_rev_info_t revinfo;
|
|
|
|
/* Multi bssid support only works on corerev >= 9 */
|
|
if (!wl_ioctl(ifname, WLC_GET_REVINFO, &revinfo, sizeof(revinfo)))
|
|
{
|
|
if (revinfo.corerev >= 9)
|
|
{
|
|
*buf = 1;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
static int wl_get_hardware_id(const char *ifname, char *buf)
|
|
{
|
|
wlc_rev_info_t revinfo;
|
|
struct iwinfo_hardware_id *ids = (struct iwinfo_hardware_id *)buf;
|
|
|
|
if (wl_ioctl(ifname, WLC_GET_REVINFO, &revinfo, sizeof(revinfo)))
|
|
return -1;
|
|
|
|
ids->vendor_id = revinfo.vendorid;
|
|
ids->device_id = revinfo.deviceid;
|
|
ids->subsystem_vendor_id = revinfo.boardvendor;
|
|
ids->subsystem_device_id = revinfo.boardid;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int wl_get_hardware_name(const char *ifname, char *buf)
|
|
{
|
|
struct iwinfo_hardware_id ids;
|
|
|
|
if (wl_get_hardware_id(ifname, (char *)&ids))
|
|
return -1;
|
|
|
|
sprintf(buf, "Broadcom BCM%04X", ids.device_id);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int wl_get_txpower_offset(const char *ifname, int *buf)
|
|
{
|
|
FILE *p;
|
|
char off[8];
|
|
|
|
*buf = 0;
|
|
|
|
if ((p = popen("/usr/sbin/nvram get opo", "r")) != NULL)
|
|
{
|
|
if (fread(off, 1, sizeof(off), p))
|
|
*buf = strtoul(off, NULL, 16);
|
|
|
|
pclose(p);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int wl_get_frequency_offset(const char *ifname, int *buf)
|
|
{
|
|
/* Stub */
|
|
*buf = 0;
|
|
return -1;
|
|
}
|
|
|
|
const struct iwinfo_ops wl_ops = {
|
|
.name = "wl",
|
|
.probe = wl_probe,
|
|
.channel = wl_get_channel,
|
|
.frequency = wl_get_frequency,
|
|
.frequency_offset = wl_get_frequency_offset,
|
|
.txpower = wl_get_txpower,
|
|
.txpower_offset = wl_get_txpower_offset,
|
|
.bitrate = wl_get_bitrate,
|
|
.signal = wl_get_signal,
|
|
.noise = wl_get_noise,
|
|
.quality = wl_get_quality,
|
|
.quality_max = wl_get_quality_max,
|
|
.mbssid_support = wl_get_mbssid_support,
|
|
.hwmodelist = wl_get_hwmodelist,
|
|
.mode = wl_get_mode,
|
|
.ssid = wl_get_ssid,
|
|
.bssid = wl_get_bssid,
|
|
.country = wl_get_country,
|
|
.hardware_id = wl_get_hardware_id,
|
|
.hardware_name = wl_get_hardware_name,
|
|
.encryption = wl_get_encryption,
|
|
.phyname = wl_get_phyname,
|
|
.assoclist = wl_get_assoclist,
|
|
.txpwrlist = wl_get_txpwrlist,
|
|
.scanlist = wl_get_scanlist,
|
|
.freqlist = wl_get_freqlist,
|
|
.countrylist = wl_get_countrylist,
|
|
.close = wl_close
|
|
};
|