diff options
Diffstat (limited to 'src/wifi/wifi-utils-wext.c')
| -rw-r--r-- | src/wifi/wifi-utils-wext.c | 674 |
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 *) ⦥ - 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; -} - |