Imported Upstream version 0.9.10.0 upstream/0.9.10.0

1 files changed, 0 insertions, 674 deletions

diff --git a/src/wifi/wifi-utils-wext.c b/src/wifi/wifi-utils-wext.c
deleted file mode 100644
index 6e990aed..00000000
--- a/src/wifi/wifi-utils-wext.c
+++ /dev/null
@@ -1,674 +0,0 @@
-/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
-/* NetworkManager -- Network link manager
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Copyright (C) 2005 - 2011 Red Hat, Inc.
- * Copyright (C) 2006 - 2008 Novell, Inc.
- */
-
-#include <config.h>
-#include <errno.h>
-#include <string.h>
-#include <sys/ioctl.h>
-#include <net/ethernet.h>
-#include <unistd.h>
-#include <math.h>
-
-#include <glib.h>
-
-#include "wifi-utils-private.h"
-#include "wifi-utils-wext.h"
-#include "nm-logging.h"
-#include "nm-utils.h"
-
-/* Hacks necessary to #include wireless.h; yay for WEXT */
-#ifndef __user
-#define __user
-#endif
-#include <sys/types.h>
-#include <linux/types.h>
-#include <sys/socket.h>
-#include <linux/if.h>
-#include <linux/wireless.h>
-
-
-typedef struct {
-	WifiData parent;
-	int fd;
-	struct iw_quality max_qual;
-	gint8 num_freqs;
-	guint32 freqs[IW_MAX_FREQUENCIES];
-} WifiDataWext;
-
-/* Until a new wireless-tools comes out that has the defs and the structure,
- * need to copy them here.
- */
-/* Scan capability flags - in (struct iw_range *)->scan_capa */
-#define NM_IW_SCAN_CAPA_NONE    0x00
-#define NM_IW_SCAN_CAPA_ESSID   0x01
-
-struct iw_range_with_scan_capa
-{
-	guint32 throughput;
-	guint32 min_nwid;
-	guint32 max_nwid;
-	guint16 old_num_channels;
-	guint8  old_num_frequency;
-
-	guint8  scan_capa;
-/* don't need the rest... */
-};
-
-static guint32
-iw_freq_to_uint32 (struct iw_freq *freq)
-{
-	if (freq->e == 0) {
-		/* Some drivers report channel not frequency.  Convert to a
-		 * frequency; but this assumes that the device is in b/g mode.
-		 */
-		if ((freq->m >= 1) && (freq->m <= 13))
-			return 2407 + (5 * freq->m);
-		else if (freq->m == 14)
-			return 2484;
-	}
-
-	return (guint32) (((double) freq->m) * pow (10, freq->e) / 1000000);
-}
-
-static void
-wifi_wext_deinit (WifiData *parent)
-{
-	WifiDataWext *wext = (WifiDataWext *) parent;
-
-	if (wext->fd >= 0)
-		close (wext->fd);
-}
-
-static NM80211Mode
-wifi_wext_get_mode (WifiData *data)
-{
-	WifiDataWext *wext = (WifiDataWext *) data;
-	struct iwreq wrq;
-
-	memset (&wrq, 0, sizeof (struct iwreq));
-	strncpy (wrq.ifr_name, wext->parent.iface, IFNAMSIZ);
-
-	if (ioctl (wext->fd, SIOCGIWMODE, &wrq) < 0) {
-		if (errno != ENODEV) {
-			nm_log_warn (LOGD_HW | LOGD_WIFI,
-			             "(%s): error %d getting card mode",
-			             wext->parent.iface, errno);
-		}
-		return NM_802_11_MODE_UNKNOWN;
-	}
-
-	switch (wrq.u.mode) {
-	case IW_MODE_ADHOC:
-		return NM_802_11_MODE_ADHOC;
-	case IW_MODE_MASTER:
-		return NM_802_11_MODE_AP;
-	case IW_MODE_INFRA:
-		return NM_802_11_MODE_INFRA;
-	default:
-		break;
-	}
-	return NM_802_11_MODE_UNKNOWN;
-}
-
-static gboolean
-wifi_wext_set_mode (WifiData *data, const NM80211Mode mode)
-{
-	WifiDataWext *wext = (WifiDataWext *) data;
-	struct iwreq wrq;
-
-	if (wifi_wext_get_mode (data) == mode)
-		return TRUE;
-
-	memset (&wrq, 0, sizeof (struct iwreq));
-	switch (mode) {
-	case NM_802_11_MODE_ADHOC:
-		wrq.u.mode = IW_MODE_ADHOC;
-		break;
-	case NM_802_11_MODE_AP:
-		wrq.u.mode = IW_MODE_MASTER;
-		break;
-	case NM_802_11_MODE_INFRA:
-		wrq.u.mode = IW_MODE_INFRA;
-		break;
-	default:
-		g_warn_if_reached ();
-		return FALSE;
-	}
-
-	strncpy (wrq.ifr_name, wext->parent.iface, IFNAMSIZ);
-	if (ioctl (wext->fd, SIOCSIWMODE, &wrq) < 0) {
-		if (errno != ENODEV) {
-			nm_log_err (LOGD_HW | LOGD_WIFI, "(%s): error setting mode %d",
-			            wext->parent.iface, mode);
-		}
-		return FALSE;
-	}
-
-	return TRUE;
-}
-
-static guint32
-wifi_wext_get_freq (WifiData *data)
-{
-	WifiDataWext *wext = (WifiDataWext *) data;
-	struct iwreq wrq;
-
-	memset (&wrq, 0, sizeof (struct iwreq));
-	strncpy (wrq.ifr_name, wext->parent.iface, IFNAMSIZ);
-	if (ioctl (wext->fd, SIOCGIWFREQ, &wrq) < 0) {
-		nm_log_warn (LOGD_HW | LOGD_WIFI,
-		             "(%s): error getting frequency: %s",
-		             wext->parent.iface, strerror (errno));
-		return 0;
-	}
-
-	return iw_freq_to_uint32 (&wrq.u.freq);
-}
-
-static guint32
-wifi_wext_find_freq (WifiData *data, const guint32 *freqs)
-{
-	WifiDataWext *wext = (WifiDataWext *) data;
-	int i;
-
-	for (i = 0; i < wext->num_freqs; i++) {
-		while (*freqs) {
-			if (wext->freqs[i] == *freqs)
-				return *freqs;
-			freqs++;
-		}
-	}
-	return 0;
-}
-
-static GByteArray *
-wifi_wext_get_ssid (WifiData *data)
-{
-	WifiDataWext *wext = (WifiDataWext *) data;
-	struct iwreq wrq;
-	char ssid[IW_ESSID_MAX_SIZE + 2];
-	guint32 len;
-	GByteArray *array = NULL;
-
-	memset (ssid, 0, sizeof (ssid));
-	wrq.u.essid.pointer = (caddr_t) &ssid;
-	wrq.u.essid.length = sizeof (ssid);
-	wrq.u.essid.flags = 0;
-	strncpy (wrq.ifr_name, wext->parent.iface, IFNAMSIZ);
-
-	if (ioctl (wext->fd, SIOCGIWESSID, &wrq) < 0) {
-		nm_log_err (LOGD_HW | LOGD_WIFI, "(%s): couldn't get SSID: %d",
-		            wext->parent.iface, errno);
-		return NULL;
-	}
-
-	len = wrq.u.essid.length;
-	if (nm_utils_is_empty_ssid ((guint8 *) ssid, len) == FALSE) {
-		array = g_byte_array_sized_new (len);
-		g_byte_array_append (array, (const guint8 *) ssid, len);
-	}
-
-	return array;
-}
-
-static gboolean
-wifi_wext_get_bssid (WifiData *data, struct ether_addr *out_bssid)
-{
-	WifiDataWext *wext = (WifiDataWext *) data;
-	struct iwreq wrq;
-
-	memset (&wrq, 0, sizeof (wrq));
-	strncpy (wrq.ifr_name, wext->parent.iface, IFNAMSIZ);
-	if (ioctl (wext->fd, SIOCGIWAP, &wrq) < 0) {
-		nm_log_warn (LOGD_HW | LOGD_WIFI,
-		             "(%s): error getting associated BSSID: %s",
-		             wext->parent.iface, strerror (errno));
-		return FALSE;
-	}
-	memcpy (out_bssid->ether_addr_octet, &(wrq.u.ap_addr.sa_data), ETH_ALEN);
-	return TRUE;
-}
-
-static guint32
-wifi_wext_get_rate (WifiData *data)
-{
-	WifiDataWext *wext = (WifiDataWext *) data;
-	struct iwreq wrq;
-	int err;
-
-	memset (&wrq, 0, sizeof (wrq));
-	strncpy (wrq.ifr_name, wext->parent.iface, IFNAMSIZ);
-	err = ioctl (wext->fd, SIOCGIWRATE, &wrq);
-	return ((err == 0) ? wrq.u.bitrate.value / 1000 : 0);
-}
-
-static int
-wext_qual_to_percent (const struct iw_quality *qual,
-                      const struct iw_quality *max_qual)
-{
-	int percent = -1;
-	int level_percent = -1;
-
-	g_return_val_if_fail (qual != NULL, -1);
-	g_return_val_if_fail (max_qual != NULL, -1);
-
-	/* Magically convert the many different WEXT quality representations to a percentage */
-
-	nm_log_dbg (LOGD_WIFI,
-	            "QL: qual %d/%u/0x%X, level %d/%u/0x%X, noise %d/%u/0x%X, updated: 0x%X  ** MAX: qual %d/%u/0x%X, level %d/%u/0x%X, noise %d/%u/0x%X, updated: 0x%X",
-	            (__s8) qual->qual, qual->qual, qual->qual,
-	            (__s8) qual->level, qual->level, qual->level,
-	            (__s8) qual->noise, qual->noise, qual->noise,
-	            qual->updated,
-	            (__s8) max_qual->qual, max_qual->qual, max_qual->qual,
-	            (__s8) max_qual->level, max_qual->level, max_qual->level,
-	            (__s8) max_qual->noise, max_qual->noise, max_qual->noise,
-	            max_qual->updated);
-
-	/* Try using the card's idea of the signal quality first as long as it tells us what the max quality is.
-	 * Drivers that fill in quality values MUST treat them as percentages, ie the "Link Quality" MUST be 
-	 * bounded by 0 and max_qual->qual, and MUST change in a linear fashion.  Within those bounds, drivers
-	 * are free to use whatever they want to calculate "Link Quality".
-	 */
-	if ((max_qual->qual != 0) && !(max_qual->updated & IW_QUAL_QUAL_INVALID) && !(qual->updated & IW_QUAL_QUAL_INVALID))
-		percent = (int)(100 * ((double)qual->qual / (double)max_qual->qual));
-
-	/* If the driver doesn't specify a complete and valid quality, we have two options:
-	 *
-	 * 1) dBm: driver must specify max_qual->level = 0, and have valid values for
-	 *        qual->level and (qual->noise OR max_qual->noise)
-	 * 2) raw RSSI: driver must specify max_qual->level > 0, and have valid values for
-	 *        qual->level and max_qual->level
-	 *
-	 * This is the WEXT spec.  If this interpretation is wrong, I'll fix it.  Otherwise,
-	 * If drivers don't conform to it, they are wrong and need to be fixed.
-	 */
-
-	if (    (max_qual->level == 0) && !(max_qual->updated & IW_QUAL_LEVEL_INVALID)          /* Valid max_qual->level == 0 */
-		&& !(qual->updated & IW_QUAL_LEVEL_INVALID)                                     /* Must have valid qual->level */
-		&& (    ((max_qual->noise > 0) && !(max_qual->updated & IW_QUAL_NOISE_INVALID)) /* Must have valid max_qual->noise */
-			|| ((qual->noise > 0) && !(qual->updated & IW_QUAL_NOISE_INVALID)))     /*    OR valid qual->noise */
-	   ) {
-		/* Absolute power values (dBm) */
-
-		/* Reasonable fallbacks for dumb drivers that don't specify either level. */
-		#define FALLBACK_NOISE_FLOOR_DBM  -90
-		#define FALLBACK_SIGNAL_MAX_DBM   -20
-		int max_level = FALLBACK_SIGNAL_MAX_DBM;
-		int noise = FALLBACK_NOISE_FLOOR_DBM;
-		int level = qual->level - 0x100;
-
-		level = CLAMP (level, FALLBACK_NOISE_FLOOR_DBM, FALLBACK_SIGNAL_MAX_DBM);
-
-		if ((qual->noise > 0) && !(qual->updated & IW_QUAL_NOISE_INVALID))
-			noise = qual->noise - 0x100;
-		else if ((max_qual->noise > 0) && !(max_qual->updated & IW_QUAL_NOISE_INVALID))
-			noise = max_qual->noise - 0x100;
-		noise = CLAMP (noise, FALLBACK_NOISE_FLOOR_DBM, FALLBACK_SIGNAL_MAX_DBM);
-
-		/* A sort of signal-to-noise ratio calculation */
-		level_percent = (int)(100 - 70 *(
-		                                ((double)max_level - (double)level) /
-		                                ((double)max_level - (double)noise)));
-		nm_log_dbg (LOGD_WIFI, "QL1: level_percent is %d.  max_level %d, level %d, noise_floor %d.",
-		            level_percent, max_level, level, noise);
-	} else if (   (max_qual->level != 0)
-	           && !(max_qual->updated & IW_QUAL_LEVEL_INVALID) /* Valid max_qual->level as upper bound */
-	           && !(qual->updated & IW_QUAL_LEVEL_INVALID)) {
-		/* Relative power values (RSSI) */
-
-		int level = qual->level;
-
-		/* Signal level is relavtive (0 -> max_qual->level) */
-		level = CLAMP (level, 0, max_qual->level);
-		level_percent = (int)(100 * ((double)level / (double)max_qual->level));
-		nm_log_dbg (LOGD_WIFI, "QL2: level_percent is %d.  max_level %d, level %d.",
-		            level_percent, max_qual->level, level);
-	} else if (percent == -1) {
-		nm_log_dbg (LOGD_WIFI, "QL: Could not get quality %% value from driver.  Driver is probably buggy.");
-	}
-
-	/* If the quality percent was 0 or doesn't exist, then try to use signal levels instead */
-	if ((percent < 1) && (level_percent >= 0))
-		percent = level_percent;
-
-	nm_log_dbg (LOGD_WIFI, "QL: Final quality percent is %d (%d).",
-	            percent, CLAMP (percent, 0, 100));
-	return (CLAMP (percent, 0, 100));
-}
-
-static int
-wifi_wext_get_qual (WifiData *data)
-{
-	WifiDataWext *wext = (WifiDataWext *) data;
-	struct iwreq wrq;
-	struct iw_statistics stats;
-
-	memset (&stats, 0, sizeof (stats));
-	wrq.u.data.pointer = &stats;
-	wrq.u.data.length = sizeof (stats);
-	wrq.u.data.flags = 1;  /* Clear updated flag */
-	strncpy (wrq.ifr_name, wext->parent.iface, IFNAMSIZ);
-
-	if (ioctl (wext->fd, SIOCGIWSTATS, &wrq) < 0) {
-		nm_log_warn (LOGD_HW | LOGD_WIFI,
-		             "(%s): error getting signal strength: %s",
-		             wext->parent.iface, strerror (errno));
-		return -1;
-	}
-
-	return wext_qual_to_percent (&stats.qual, &wext->max_qual);
-}
-
-/*********************/
-/* OLPC Mesh-only functions */
-
-static guint32
-wifi_wext_get_mesh_channel (WifiData *data)
-{
-	WifiDataWext *wext = (WifiDataWext *) data;
-	guint32 freq;
-	int i;
-
-	freq = wifi_utils_get_freq (data);
-	for (i = 0; i < wext->num_freqs; i++) {
-		if (freq == wext->freqs[i])
-			return i + 1;
-	}
-	return 0;
-}
-
-static gboolean
-wifi_wext_set_mesh_channel (WifiData *data, guint32 channel)
-{
-	WifiDataWext *wext = (WifiDataWext *) data;
-	struct iwreq wrq;
-
-	memset (&wrq, 0, sizeof (struct iwreq));
-	strncpy (wrq.ifr_name, wext->parent.iface, IFNAMSIZ);
-
-	if (channel > 0) {
-		wrq.u.freq.flags = IW_FREQ_FIXED;
-		wrq.u.freq.e = 0;
-		wrq.u.freq.m = channel;
-	}
-
-	if (ioctl (wext->fd, SIOCSIWFREQ, &wrq) < 0) {
-		nm_log_err (LOGD_HW | LOGD_WIFI | LOGD_OLPC_MESH,
-		            "(%s): error setting channel to %d: %s",
-		            wext->parent.iface, channel, strerror (errno));
-		return FALSE;
-	}
-
-	return TRUE;
-}
-
-static gboolean
-wifi_wext_set_mesh_ssid (WifiData *data, const GByteArray *ssid)
-{
-	WifiDataWext *wext = (WifiDataWext *) data;
-	struct iwreq wrq;
-	guint32 len = 0;
-	char buf[IW_ESSID_MAX_SIZE + 1];
-
-	memset (buf, 0, sizeof (buf));
-	if (ssid) {
-		len = ssid->len;
-		memcpy (buf, ssid->data, MIN (sizeof (buf) - 1, len));
-	}
-	wrq.u.essid.pointer = (caddr_t) buf;
-	wrq.u.essid.length = len;
-	wrq.u.essid.flags = (len > 0) ? 1 : 0; /* 1=enable SSID, 0=disable/any */
-
-	strncpy (wrq.ifr_name, wext->parent.iface, IFNAMSIZ);
-	if (ioctl (wext->fd, SIOCSIWESSID, &wrq) == 0)
-		return TRUE;
-
-	if (errno != ENODEV) {
-		nm_log_err (LOGD_HW | LOGD_WIFI | LOGD_OLPC_MESH,
-		            "(%s): error setting SSID to '%s': %s",
-		            wext->parent.iface,
-		            ssid ? nm_utils_escape_ssid (ssid->data, ssid->len) : "(null)",
-		            strerror (errno));
-	}
-
-	return FALSE;
-}
-
-/*********************/
-
-static gboolean
-wext_can_scan (WifiDataWext *wext)
-{
-	struct iwreq wrq;
-
-	memset (&wrq, 0, sizeof (struct iwreq));
-	strncpy (wrq.ifr_name, wext->parent.iface, IFNAMSIZ);
-	if (ioctl (wext->fd, SIOCSIWSCAN, &wrq) < 0) {
-		if (errno == EOPNOTSUPP)
-			return FALSE;
-	}
-	return TRUE;
-}
-
-static gboolean
-wext_get_range (WifiDataWext *wext,
-                struct iw_range *range,
-                guint32 *response_len)
-{
-	int i = 26;
-	gboolean success = FALSE;
-	struct iwreq wrq;
-
-	memset (&wrq, 0, sizeof (struct iwreq));
-	strncpy (wrq.ifr_name, wext->parent.iface, IFNAMSIZ);
-	wrq.u.data.pointer = (caddr_t) range;
-	wrq.u.data.length = sizeof (struct iw_range);
-
-	/* Need to give some drivers time to recover after suspend/resume
-	 * (ex ipw3945 takes a few seconds to talk to its regulatory daemon;
-	 * see rh bz#362421)
-	 */
-	while (i-- > 0) {
-		if (ioctl (wext->fd, SIOCGIWRANGE, &wrq) == 0) {
-			if (response_len)
-				*response_len = wrq.u.data.length;
-			success = TRUE;
-			break;
-		} else if (errno != EAGAIN) {
-			nm_log_err (LOGD_HW | LOGD_WIFI,
-			            "(%s): couldn't get driver range information (%d).",
-			            wext->parent.iface, errno);
-			break;
-		}
-
-		g_usleep (G_USEC_PER_SEC / 4);
-	}
-
-	if (i <= 0) {
-		nm_log_warn (LOGD_HW | LOGD_WIFI,
-		             "(%s): driver took too long to respond to IWRANGE query.",
-		             wext->parent.iface);
-	}
-
-	return success;
-}
-
-#define WPA_CAPS (NM_WIFI_DEVICE_CAP_CIPHER_TKIP | \
-                  NM_WIFI_DEVICE_CAP_CIPHER_CCMP | \
-                  NM_WIFI_DEVICE_CAP_WPA | \
-                  NM_WIFI_DEVICE_CAP_RSN)
-
-static guint32
-wext_get_caps (WifiDataWext *wext, struct iw_range *range)
-{
-	guint32 caps = NM_WIFI_DEVICE_CAP_NONE;
-
-	g_return_val_if_fail (wext != NULL, NM_WIFI_DEVICE_CAP_NONE);
-	g_return_val_if_fail (range != NULL, NM_WIFI_DEVICE_CAP_NONE);
-
-	/* All drivers should support WEP by default */
-	caps |= NM_WIFI_DEVICE_CAP_CIPHER_WEP40 | NM_WIFI_DEVICE_CAP_CIPHER_WEP104;
-
-	if (range->enc_capa & IW_ENC_CAPA_CIPHER_TKIP)
-		caps |= NM_WIFI_DEVICE_CAP_CIPHER_TKIP;
-
-	if (range->enc_capa & IW_ENC_CAPA_CIPHER_CCMP)
-		caps |= NM_WIFI_DEVICE_CAP_CIPHER_CCMP;
-
-	if (range->enc_capa & IW_ENC_CAPA_WPA)
-		caps |= NM_WIFI_DEVICE_CAP_WPA;
-
-	if (range->enc_capa & IW_ENC_CAPA_WPA2)
-		caps |= NM_WIFI_DEVICE_CAP_RSN;
-
-	/* Check for cipher support but not WPA support */
-	if (    (caps & (NM_WIFI_DEVICE_CAP_CIPHER_TKIP | NM_WIFI_DEVICE_CAP_CIPHER_CCMP))
-	    && !(caps & (NM_WIFI_DEVICE_CAP_WPA | NM_WIFI_DEVICE_CAP_RSN))) {
-		nm_log_warn (LOGD_WIFI, "%s: device supports WPA ciphers but not WPA protocol; "
-		             "WPA unavailable.", wext->parent.iface);
-		caps &= ~WPA_CAPS;
-	}
-
-	/* Check for WPA support but not cipher support */
-	if (    (caps & (NM_WIFI_DEVICE_CAP_WPA | NM_WIFI_DEVICE_CAP_RSN))
-	    && !(caps & (NM_WIFI_DEVICE_CAP_CIPHER_TKIP | NM_WIFI_DEVICE_CAP_CIPHER_CCMP))) {
-		nm_log_warn (LOGD_WIFI, "%s: device supports WPA protocol but not WPA ciphers; "
-		             "WPA unavailable.", wext->parent.iface);
-		caps &= ~WPA_CAPS;
-	}
-
-	/* There's no way to detect Ad-Hoc/AP mode support with WEXT
-	 * (other than actually trying to do it), so just assume that
-	 * Ad-Hoc is supported and AP isn't.
-	 */
-	caps |= NM_WIFI_DEVICE_CAP_ADHOC;
-
-	return caps;
-}
-
-WifiData *
-wifi_wext_init (const char *iface, int ifindex, gboolean check_scan)
-{
-	WifiDataWext *wext;
-	struct iw_range range;
-	guint32 response_len = 0;
-	struct iw_range_with_scan_capa *scan_capa_range;
-	int i;
-
-	wext = wifi_data_new (iface, ifindex, sizeof (*wext));
-	wext->parent.get_mode = wifi_wext_get_mode;
-	wext->parent.set_mode = wifi_wext_set_mode;
-	wext->parent.get_freq = wifi_wext_get_freq;
-	wext->parent.find_freq = wifi_wext_find_freq;
-	wext->parent.get_ssid = wifi_wext_get_ssid;
-	wext->parent.get_bssid = wifi_wext_get_bssid;
-	wext->parent.get_rate = wifi_wext_get_rate;
-	wext->parent.get_qual = wifi_wext_get_qual;
-	wext->parent.deinit = wifi_wext_deinit;
-	wext->parent.get_mesh_channel = wifi_wext_get_mesh_channel;
-	wext->parent.set_mesh_channel = wifi_wext_set_mesh_channel;
-	wext->parent.set_mesh_ssid = wifi_wext_set_mesh_ssid;
-
-	wext->fd = socket (PF_INET, SOCK_DGRAM, 0);
-	if (wext->fd < 0)
-		goto error;
-
-	memset (&range, 0, sizeof (struct iw_range));
-	if (wext_get_range (wext, &range, &response_len) == FALSE) {
-		nm_log_info (LOGD_HW | LOGD_WIFI, "(%s): driver WEXT range request failed",
-		             wext->parent.iface);
-		goto error;
-	}
-
-	if ((response_len < 300) || (range.we_version_compiled < 21)) {
-		nm_log_info (LOGD_HW | LOGD_WIFI,
-		             "(%s): driver WEXT version too old (got %d, expected >= 21)",
-		             wext->parent.iface,
-		             range.we_version_compiled);
-		goto error;
-	}
-
-	wext->max_qual.qual = range.max_qual.qual;
-	wext->max_qual.level = range.max_qual.level;
-	wext->max_qual.noise = range.max_qual.noise;
-	wext->max_qual.updated = range.max_qual.updated;
-
-	wext->num_freqs = MIN (range.num_frequency, IW_MAX_FREQUENCIES);
-	for (i = 0; i < wext->num_freqs; i++)
-		wext->freqs[i] = iw_freq_to_uint32 (&range.freq[i]);
-
-	/* Check for scanning capability; cards that can't scan are not supported */
-	if (check_scan && (wext_can_scan (wext) == FALSE)) {
-		nm_log_info (LOGD_HW | LOGD_WIFI,
-		             "(%s): drivers that cannot scan are unsupported",
-		             wext->parent.iface);
-		goto error;
-	}
-
-	/* Check for the ability to scan specific SSIDs.  Until the scan_capa
-	 * field gets added to wireless-tools, need to work around that by casting
-	 * to the custom structure.
-	 */
-	scan_capa_range = (struct iw_range_with_scan_capa *) &range;
-	if (scan_capa_range->scan_capa & NM_IW_SCAN_CAPA_ESSID) {
-		wext->parent.can_scan_ssid = TRUE;
-		nm_log_info (LOGD_HW | LOGD_WIFI,
-		             "(%s): driver supports SSID scans (scan_capa 0x%02X).",
-		             wext->parent.iface,
-		             scan_capa_range->scan_capa);
-	} else {
-		nm_log_info (LOGD_HW | LOGD_WIFI,
-		             "(%s): driver does not support SSID scans (scan_capa 0x%02X).",
-		             wext->parent.iface,
-		             scan_capa_range->scan_capa);
-	}
-
-	wext->parent.caps = wext_get_caps (wext, &range);
-
-	nm_log_info (LOGD_HW | LOGD_WIFI,
-	             "(%s): using WEXT for WiFi device control",
-	             wext->parent.iface);
-
-	return (WifiData *) wext;
-
-error:
-	wifi_utils_deinit ((WifiData *) wext);
-	return NULL;
-}
-
-gboolean
-wifi_wext_is_wifi (const char *iface)
-{
-	int fd;
-	struct iwreq iwr;
-	gboolean is_wifi = FALSE;
-
-	fd = socket (PF_INET, SOCK_DGRAM, 0);
-	if (fd >= 0) {
-		strncpy (iwr.ifr_ifrn.ifrn_name, iface, IFNAMSIZ);
-		if (ioctl (fd, SIOCGIWNAME, &iwr) == 0)
-			is_wifi = TRUE;
-		close (fd);
-	}
-	return is_wifi;
-}
-