mirror of
https://gitlab.freedesktop.org/NetworkManager/NetworkManager.git
synced 2026-02-07 02:50:30 +01:00
663 lines
19 KiB
C
663 lines
19 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
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/* NetworkManager -- Network link manager
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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. See the
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* 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 this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Copyright (C) 2005 - 2011 Red Hat, Inc.
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* Copyright (C) 2006 - 2008 Novell, Inc.
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*/
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#include <config.h>
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#include <errno.h>
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#include <string.h>
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#include <sys/ioctl.h>
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#include <net/ethernet.h>
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#include <unistd.h>
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#include <math.h>
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#include <glib.h>
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#include "wifi-utils-private.h"
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#include "wifi-utils-wext.h"
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#include "nm-logging.h"
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#include "nm-utils.h"
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/* Hacks necessary to #include wireless.h; yay for WEXT */
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#ifndef __user
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#define __user
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#endif
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#include <sys/types.h>
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#include <linux/types.h>
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#include <sys/socket.h>
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#include <linux/if.h>
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#include <linux/wireless.h>
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typedef struct {
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WifiData parent;
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int fd;
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struct iw_quality max_qual;
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gint8 num_freqs;
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guint32 freqs[IW_MAX_FREQUENCIES];
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} WifiDataWext;
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/* Until a new wireless-tools comes out that has the defs and the structure,
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* need to copy them here.
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*/
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/* Scan capability flags - in (struct iw_range *)->scan_capa */
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#define NM_IW_SCAN_CAPA_NONE 0x00
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#define NM_IW_SCAN_CAPA_ESSID 0x01
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struct iw_range_with_scan_capa
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{
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guint32 throughput;
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guint32 min_nwid;
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guint32 max_nwid;
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guint16 old_num_channels;
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guint8 old_num_frequency;
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guint8 scan_capa;
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/* don't need the rest... */
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};
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static guint32
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iw_freq_to_uint32 (struct iw_freq *freq)
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{
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if (freq->e == 0) {
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/* Some drivers report channel not frequency. Convert to a
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* frequency; but this assumes that the device is in b/g mode.
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*/
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if ((freq->m >= 1) && (freq->m <= 13))
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return 2407 + (5 * freq->m);
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else if (freq->m == 14)
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return 2484;
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}
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return (guint32) (((double) freq->m) * pow (10, freq->e) / 1000000);
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}
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static void
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wifi_wext_deinit (WifiData *parent)
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{
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WifiDataWext *wext = (WifiDataWext *) parent;
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if (wext->fd >= 0)
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close (wext->fd);
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}
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static NM80211Mode
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wifi_wext_get_mode (WifiData *data)
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{
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WifiDataWext *wext = (WifiDataWext *) data;
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struct iwreq wrq;
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memset (&wrq, 0, sizeof (struct iwreq));
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strncpy (wrq.ifr_name, wext->parent.iface, IFNAMSIZ);
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if (ioctl (wext->fd, SIOCGIWMODE, &wrq) < 0) {
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if (errno != ENODEV) {
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nm_log_warn (LOGD_HW | LOGD_WIFI,
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"(%s): error %d getting card mode",
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wext->parent.iface, errno);
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}
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return NM_802_11_MODE_UNKNOWN;
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}
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switch (wrq.u.mode) {
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case IW_MODE_ADHOC:
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return NM_802_11_MODE_ADHOC;
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case IW_MODE_INFRA:
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return NM_802_11_MODE_INFRA;
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default:
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break;
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}
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return NM_802_11_MODE_UNKNOWN;
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}
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static gboolean
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wifi_wext_set_mode (WifiData *data, const NM80211Mode mode)
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{
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WifiDataWext *wext = (WifiDataWext *) data;
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struct iwreq wrq;
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if (wifi_wext_get_mode (data) == mode)
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return TRUE;
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memset (&wrq, 0, sizeof (struct iwreq));
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switch (mode) {
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case NM_802_11_MODE_ADHOC:
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wrq.u.mode = IW_MODE_ADHOC;
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break;
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case NM_802_11_MODE_INFRA:
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wrq.u.mode = IW_MODE_INFRA;
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break;
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default:
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g_warn_if_reached ();
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return FALSE;
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}
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strncpy (wrq.ifr_name, wext->parent.iface, IFNAMSIZ);
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if (ioctl (wext->fd, SIOCSIWMODE, &wrq) < 0) {
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if (errno != ENODEV) {
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nm_log_err (LOGD_HW | LOGD_WIFI, "(%s): error setting mode %d",
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wext->parent.iface, mode);
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}
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return FALSE;
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}
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return TRUE;
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}
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static guint32
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wifi_wext_get_freq (WifiData *data)
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{
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WifiDataWext *wext = (WifiDataWext *) data;
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struct iwreq wrq;
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memset (&wrq, 0, sizeof (struct iwreq));
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strncpy (wrq.ifr_name, wext->parent.iface, IFNAMSIZ);
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if (ioctl (wext->fd, SIOCGIWFREQ, &wrq) < 0) {
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nm_log_warn (LOGD_HW | LOGD_WIFI,
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"(%s): error getting frequency: %s",
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wext->parent.iface, strerror (errno));
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return 0;
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}
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return iw_freq_to_uint32 (&wrq.u.freq);
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}
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static guint32
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wifi_wext_find_freq (WifiData *data, const guint32 *freqs)
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{
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WifiDataWext *wext = (WifiDataWext *) data;
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int i;
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for (i = 0; i < wext->num_freqs; i++) {
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while (*freqs) {
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if (wext->freqs[i] == *freqs)
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return *freqs;
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freqs++;
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}
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}
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return 0;
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}
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static GByteArray *
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wifi_wext_get_ssid (WifiData *data)
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{
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WifiDataWext *wext = (WifiDataWext *) data;
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struct iwreq wrq;
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char ssid[IW_ESSID_MAX_SIZE + 2];
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guint32 len;
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GByteArray *array = NULL;
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memset (ssid, 0, sizeof (ssid));
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wrq.u.essid.pointer = (caddr_t) &ssid;
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wrq.u.essid.length = sizeof (ssid);
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wrq.u.essid.flags = 0;
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strncpy (wrq.ifr_name, wext->parent.iface, IFNAMSIZ);
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if (ioctl (wext->fd, SIOCGIWESSID, &wrq) < 0) {
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nm_log_err (LOGD_HW | LOGD_WIFI, "(%s): couldn't get SSID: %d",
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wext->parent.iface, errno);
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return NULL;
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}
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len = wrq.u.essid.length;
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if (nm_utils_is_empty_ssid ((guint8 *) ssid, len) == FALSE) {
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array = g_byte_array_sized_new (len);
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g_byte_array_append (array, (const guint8 *) ssid, len);
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}
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return array;
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}
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static gboolean
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wifi_wext_get_bssid (WifiData *data, struct ether_addr *out_bssid)
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{
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WifiDataWext *wext = (WifiDataWext *) data;
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struct iwreq wrq;
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memset (&wrq, 0, sizeof (wrq));
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strncpy (wrq.ifr_name, wext->parent.iface, IFNAMSIZ);
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if (ioctl (wext->fd, SIOCGIWAP, &wrq) < 0) {
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nm_log_warn (LOGD_HW | LOGD_WIFI,
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"(%s): error getting associated BSSID: %s",
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wext->parent.iface, strerror (errno));
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return FALSE;
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}
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memcpy (out_bssid->ether_addr_octet, &(wrq.u.ap_addr.sa_data), ETH_ALEN);
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return TRUE;
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}
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static guint32
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wifi_wext_get_rate (WifiData *data)
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{
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WifiDataWext *wext = (WifiDataWext *) data;
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struct iwreq wrq;
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int err;
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memset (&wrq, 0, sizeof (wrq));
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strncpy (wrq.ifr_name, wext->parent.iface, IFNAMSIZ);
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err = ioctl (wext->fd, SIOCGIWRATE, &wrq);
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return ((err == 0) ? wrq.u.bitrate.value / 1000 : 0);
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}
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static int
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wext_qual_to_percent (const struct iw_quality *qual,
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const struct iw_quality *max_qual)
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{
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int percent = -1;
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int level_percent = -1;
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g_return_val_if_fail (qual != NULL, -1);
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g_return_val_if_fail (max_qual != NULL, -1);
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/* Magically convert the many different WEXT quality representations to a percentage */
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nm_log_dbg (LOGD_WIFI,
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"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",
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(__s8) qual->qual, qual->qual, qual->qual,
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(__s8) qual->level, qual->level, qual->level,
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(__s8) qual->noise, qual->noise, qual->noise,
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qual->updated,
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(__s8) max_qual->qual, max_qual->qual, max_qual->qual,
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(__s8) max_qual->level, max_qual->level, max_qual->level,
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(__s8) max_qual->noise, max_qual->noise, max_qual->noise,
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max_qual->updated);
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/* Try using the card's idea of the signal quality first as long as it tells us what the max quality is.
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* Drivers that fill in quality values MUST treat them as percentages, ie the "Link Quality" MUST be
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* bounded by 0 and max_qual->qual, and MUST change in a linear fashion. Within those bounds, drivers
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* are free to use whatever they want to calculate "Link Quality".
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*/
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if ((max_qual->qual != 0) && !(max_qual->updated & IW_QUAL_QUAL_INVALID) && !(qual->updated & IW_QUAL_QUAL_INVALID))
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percent = (int)(100 * ((double)qual->qual / (double)max_qual->qual));
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/* If the driver doesn't specify a complete and valid quality, we have two options:
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*
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* 1) dBm: driver must specify max_qual->level = 0, and have valid values for
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* qual->level and (qual->noise OR max_qual->noise)
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* 2) raw RSSI: driver must specify max_qual->level > 0, and have valid values for
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* qual->level and max_qual->level
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*
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* This is the WEXT spec. If this interpretation is wrong, I'll fix it. Otherwise,
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* If drivers don't conform to it, they are wrong and need to be fixed.
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*/
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if ( (max_qual->level == 0) && !(max_qual->updated & IW_QUAL_LEVEL_INVALID) /* Valid max_qual->level == 0 */
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&& !(qual->updated & IW_QUAL_LEVEL_INVALID) /* Must have valid qual->level */
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&& ( ((max_qual->noise > 0) && !(max_qual->updated & IW_QUAL_NOISE_INVALID)) /* Must have valid max_qual->noise */
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|| ((qual->noise > 0) && !(qual->updated & IW_QUAL_NOISE_INVALID))) /* OR valid qual->noise */
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) {
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/* Absolute power values (dBm) */
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/* Reasonable fallbacks for dumb drivers that don't specify either level. */
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#define FALLBACK_NOISE_FLOOR_DBM -90
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#define FALLBACK_SIGNAL_MAX_DBM -20
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int max_level = FALLBACK_SIGNAL_MAX_DBM;
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int noise = FALLBACK_NOISE_FLOOR_DBM;
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int level = qual->level - 0x100;
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level = CLAMP (level, FALLBACK_NOISE_FLOOR_DBM, FALLBACK_SIGNAL_MAX_DBM);
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if ((qual->noise > 0) && !(qual->updated & IW_QUAL_NOISE_INVALID))
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noise = qual->noise - 0x100;
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else if ((max_qual->noise > 0) && !(max_qual->updated & IW_QUAL_NOISE_INVALID))
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noise = max_qual->noise - 0x100;
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noise = CLAMP (noise, FALLBACK_NOISE_FLOOR_DBM, FALLBACK_SIGNAL_MAX_DBM);
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/* A sort of signal-to-noise ratio calculation */
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level_percent = (int)(100 - 70 *(
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((double)max_level - (double)level) /
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((double)max_level - (double)noise)));
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nm_log_dbg (LOGD_WIFI, "QL1: level_percent is %d. max_level %d, level %d, noise_floor %d.",
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level_percent, max_level, level, noise);
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} else if ( (max_qual->level != 0)
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&& !(max_qual->updated & IW_QUAL_LEVEL_INVALID) /* Valid max_qual->level as upper bound */
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&& !(qual->updated & IW_QUAL_LEVEL_INVALID)) {
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/* Relative power values (RSSI) */
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int level = qual->level;
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/* Signal level is relavtive (0 -> max_qual->level) */
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level = CLAMP (level, 0, max_qual->level);
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level_percent = (int)(100 * ((double)level / (double)max_qual->level));
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nm_log_dbg (LOGD_WIFI, "QL2: level_percent is %d. max_level %d, level %d.",
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level_percent, max_qual->level, level);
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} else if (percent == -1) {
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nm_log_dbg (LOGD_WIFI, "QL: Could not get quality %% value from driver. Driver is probably buggy.");
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}
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/* If the quality percent was 0 or doesn't exist, then try to use signal levels instead */
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if ((percent < 1) && (level_percent >= 0))
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percent = level_percent;
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nm_log_dbg (LOGD_WIFI, "QL: Final quality percent is %d (%d).",
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percent, CLAMP (percent, 0, 100));
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return (CLAMP (percent, 0, 100));
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}
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static int
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wifi_wext_get_qual (WifiData *data)
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{
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WifiDataWext *wext = (WifiDataWext *) data;
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struct iwreq wrq;
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struct iw_statistics stats;
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memset (&stats, 0, sizeof (stats));
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wrq.u.data.pointer = &stats;
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wrq.u.data.length = sizeof (stats);
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wrq.u.data.flags = 1; /* Clear updated flag */
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strncpy (wrq.ifr_name, wext->parent.iface, IFNAMSIZ);
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if (ioctl (wext->fd, SIOCGIWSTATS, &wrq) < 0) {
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nm_log_warn (LOGD_HW | LOGD_WIFI,
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"(%s): error getting signal strength: %s",
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wext->parent.iface, strerror (errno));
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return -1;
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}
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return wext_qual_to_percent (&stats.qual, &wext->max_qual);
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}
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/*********************/
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/* OLPC Mesh-only functions */
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static guint32
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wifi_wext_get_mesh_channel (WifiData *data)
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{
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WifiDataWext *wext = (WifiDataWext *) data;
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guint32 freq;
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int i;
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freq = wifi_utils_get_freq (data);
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for (i = 0; i < wext->num_freqs; i++) {
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if (freq == wext->freqs[i])
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return i + 1;
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}
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return 0;
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}
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static gboolean
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wifi_wext_set_mesh_channel (WifiData *data, guint32 channel)
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{
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WifiDataWext *wext = (WifiDataWext *) data;
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struct iwreq wrq;
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memset (&wrq, 0, sizeof (struct iwreq));
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strncpy (wrq.ifr_name, wext->parent.iface, IFNAMSIZ);
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if (channel > 0) {
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wrq.u.freq.flags = IW_FREQ_FIXED;
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wrq.u.freq.e = 0;
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wrq.u.freq.m = channel;
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}
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if (ioctl (wext->fd, SIOCSIWFREQ, &wrq) < 0) {
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nm_log_err (LOGD_HW | LOGD_WIFI | LOGD_OLPC_MESH,
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"(%s): error setting channel to %d: %s",
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wext->parent.iface, channel, strerror (errno));
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return FALSE;
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}
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return TRUE;
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}
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static gboolean
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wifi_wext_set_mesh_ssid (WifiData *data, const GByteArray *ssid)
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{
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WifiDataWext *wext = (WifiDataWext *) data;
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struct iwreq wrq;
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guint32 len = 0;
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char buf[IW_ESSID_MAX_SIZE + 1];
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memset (buf, 0, sizeof (buf));
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if (ssid) {
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len = ssid->len;
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memcpy (buf, ssid->data, MIN (sizeof (buf) - 1, len));
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}
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wrq.u.essid.pointer = (caddr_t) buf;
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wrq.u.essid.length = len;
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wrq.u.essid.flags = (len > 0) ? 1 : 0; /* 1=enable SSID, 0=disable/any */
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strncpy (wrq.ifr_name, wext->parent.iface, IFNAMSIZ);
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if (ioctl (wext->fd, SIOCSIWESSID, &wrq) == 0)
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return TRUE;
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if (errno != ENODEV) {
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nm_log_err (LOGD_HW | LOGD_WIFI | LOGD_OLPC_MESH,
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"(%s): error setting SSID to '%s': %s",
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wext->parent.iface,
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ssid ? nm_utils_escape_ssid (ssid->data, ssid->len) : "(null)",
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strerror (errno));
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}
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return FALSE;
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}
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/*********************/
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static gboolean
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wext_can_scan (WifiDataWext *wext)
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{
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struct iwreq wrq;
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memset (&wrq, 0, sizeof (struct iwreq));
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strncpy (wrq.ifr_name, wext->parent.iface, IFNAMSIZ);
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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;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|