mirror of
https://gitlab.freedesktop.org/NetworkManager/NetworkManager
synced 2024-10-15 12:34:55 +00:00
646 lines
18 KiB
C
646 lines
18 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
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/*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This 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. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA.
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*
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* Copyright 2007 - 2008 Novell, Inc.
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* Copyright 2007 - 2011 Red Hat, Inc.
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*/
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#include "nm-default.h"
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#include "nm-access-point.h"
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#include <string.h>
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#include "nm-connection.h"
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#include "nm-setting-connection.h"
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#include "nm-setting-wireless.h"
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#include "nm-setting-wireless-security.h"
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#include "nm-utils.h"
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#include "nm-dbus-interface.h"
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#include "nm-object-private.h"
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G_DEFINE_TYPE (NMAccessPoint, nm_access_point, NM_TYPE_OBJECT)
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#define NM_ACCESS_POINT_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), NM_TYPE_ACCESS_POINT, NMAccessPointPrivate))
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typedef struct {
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NM80211ApFlags flags;
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NM80211ApSecurityFlags wpa_flags;
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NM80211ApSecurityFlags rsn_flags;
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GBytes *ssid;
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guint32 frequency;
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char *bssid;
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NM80211Mode mode;
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guint32 max_bitrate;
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guint8 strength;
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gint last_seen;
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} NMAccessPointPrivate;
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enum {
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PROP_0,
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PROP_FLAGS,
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PROP_WPA_FLAGS,
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PROP_RSN_FLAGS,
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PROP_SSID,
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PROP_FREQUENCY,
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PROP_HW_ADDRESS,
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PROP_MODE,
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PROP_MAX_BITRATE,
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PROP_STRENGTH,
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PROP_BSSID,
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PROP_LAST_SEEN,
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LAST_PROP
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};
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/**
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* nm_access_point_get_flags:
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* @ap: a #NMAccessPoint
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*
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* Gets the flags of the access point.
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*
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* Returns: the flags
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**/
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NM80211ApFlags
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nm_access_point_get_flags (NMAccessPoint *ap)
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{
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g_return_val_if_fail (NM_IS_ACCESS_POINT (ap), NM_802_11_AP_FLAGS_NONE);
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return NM_ACCESS_POINT_GET_PRIVATE (ap)->flags;
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}
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/**
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* nm_access_point_get_wpa_flags:
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* @ap: a #NMAccessPoint
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*
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* Gets the WPA (version 1) flags of the access point.
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*
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* Returns: the WPA flags
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**/
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NM80211ApSecurityFlags
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nm_access_point_get_wpa_flags (NMAccessPoint *ap)
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{
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g_return_val_if_fail (NM_IS_ACCESS_POINT (ap), NM_802_11_AP_SEC_NONE);
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return NM_ACCESS_POINT_GET_PRIVATE (ap)->wpa_flags;
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}
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/**
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* nm_access_point_get_rsn_flags:
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* @ap: a #NMAccessPoint
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*
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* Gets the RSN (Robust Secure Network, ie WPA version 2) flags of the access
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* point.
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*
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* Returns: the RSN flags
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**/
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NM80211ApSecurityFlags
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nm_access_point_get_rsn_flags (NMAccessPoint *ap)
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{
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g_return_val_if_fail (NM_IS_ACCESS_POINT (ap), NM_802_11_AP_SEC_NONE);
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return NM_ACCESS_POINT_GET_PRIVATE (ap)->rsn_flags;
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}
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/**
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* nm_access_point_get_ssid:
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* @ap: a #NMAccessPoint
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*
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* Gets the SSID of the access point.
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*
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* Returns: (transfer none): the #GBytes containing the SSID, or %NULL if the
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* SSID is unknown.
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**/
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GBytes *
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nm_access_point_get_ssid (NMAccessPoint *ap)
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{
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NMAccessPointPrivate *priv;
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g_return_val_if_fail (NM_IS_ACCESS_POINT (ap), NULL);
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priv = NM_ACCESS_POINT_GET_PRIVATE (ap);
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if (!priv->ssid || g_bytes_get_size (priv->ssid) == 0)
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return NULL;
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return priv->ssid;
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}
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/**
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* nm_access_point_get_frequency:
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* @ap: a #NMAccessPoint
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*
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* Gets the frequency of the access point in MHz.
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*
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* Returns: the frequency in MHz
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**/
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guint32
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nm_access_point_get_frequency (NMAccessPoint *ap)
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{
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g_return_val_if_fail (NM_IS_ACCESS_POINT (ap), 0);
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return NM_ACCESS_POINT_GET_PRIVATE (ap)->frequency;
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}
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/**
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* nm_access_point_get_bssid:
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* @ap: a #NMAccessPoint
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*
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* Gets the Basic Service Set ID (BSSID) of the Wi-Fi access point.
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*
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* Returns: the BSSID of the access point. This is an internal string and must
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* not be modified or freed.
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**/
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const char *
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nm_access_point_get_bssid (NMAccessPoint *ap)
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{
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g_return_val_if_fail (NM_IS_ACCESS_POINT (ap), NULL);
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return nm_str_not_empty (NM_ACCESS_POINT_GET_PRIVATE (ap)->bssid);
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}
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/**
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* nm_access_point_get_mode:
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* @ap: a #NMAccessPoint
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*
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* Gets the mode of the access point.
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*
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* Returns: the mode
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**/
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NM80211Mode
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nm_access_point_get_mode (NMAccessPoint *ap)
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{
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g_return_val_if_fail (NM_IS_ACCESS_POINT (ap), 0);
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return NM_ACCESS_POINT_GET_PRIVATE (ap)->mode;
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}
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/**
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* nm_access_point_get_max_bitrate:
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* @ap: a #NMAccessPoint
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*
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* Gets the maximum bit rate of the access point in kbit/s.
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*
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* Returns: the maximum bit rate (kbit/s)
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**/
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guint32
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nm_access_point_get_max_bitrate (NMAccessPoint *ap)
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{
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g_return_val_if_fail (NM_IS_ACCESS_POINT (ap), 0);
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return NM_ACCESS_POINT_GET_PRIVATE (ap)->max_bitrate;
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}
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/**
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* nm_access_point_get_strength:
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* @ap: a #NMAccessPoint
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*
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* Gets the current signal strength of the access point as a percentage.
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*
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* Returns: the signal strength (0 to 100)
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**/
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guint8
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nm_access_point_get_strength (NMAccessPoint *ap)
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{
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g_return_val_if_fail (NM_IS_ACCESS_POINT (ap), 0);
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return NM_ACCESS_POINT_GET_PRIVATE (ap)->strength;
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}
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/**
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* nm_access_point_get_last_seen:
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* @ap: a #NMAccessPoint
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*
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* Returns the timestamp (in CLOCK_BOOTTIME seconds) for the last time the
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* access point was found in scan results. A value of -1 means the access
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* point has not been found in a scan.
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*
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* Returns: the last seen time in seconds
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*
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* Since: 1.2
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**/
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gint
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nm_access_point_get_last_seen (NMAccessPoint *ap)
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{
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g_return_val_if_fail (NM_IS_ACCESS_POINT (ap), -1);
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return NM_ACCESS_POINT_GET_PRIVATE (ap)->last_seen;
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}
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NM_BACKPORT_SYMBOL (libnm_1_0_6, gint, nm_access_point_get_last_seen, (NMAccessPoint *ap), (ap));
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/**
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* nm_access_point_connection_valid:
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* @ap: an #NMAccessPoint to validate @connection against
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* @connection: an #NMConnection to validate against @ap
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*
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* Validates a given connection against a given Wi-Fi access point to ensure that
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* the connection may be activated with that AP. The connection must match the
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* @ap's SSID, (if given) BSSID, and other attributes like security settings,
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* channel, band, etc.
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*
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* Returns: %TRUE if the connection may be activated with this Wi-Fi AP,
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* %FALSE if it cannot be.
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**/
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gboolean
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nm_access_point_connection_valid (NMAccessPoint *ap, NMConnection *connection)
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{
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NMSettingConnection *s_con;
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NMSettingWireless *s_wifi;
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NMSettingWirelessSecurity *s_wsec;
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const char *ctype, *ap_bssid;
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GBytes *setting_ssid;
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GBytes *ap_ssid;
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const char *setting_bssid;
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const char *setting_mode;
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NM80211Mode ap_mode;
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const char *setting_band;
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guint32 ap_freq, setting_chan, ap_chan;
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s_con = nm_connection_get_setting_connection (connection);
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if (!s_con)
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return FALSE;
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ctype = nm_setting_connection_get_connection_type (s_con);
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if (!ctype || !nm_streq (ctype, NM_SETTING_WIRELESS_SETTING_NAME))
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return FALSE;
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s_wifi = nm_connection_get_setting_wireless (connection);
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if (!s_wifi)
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return FALSE;
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/* SSID checks */
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ap_ssid = nm_access_point_get_ssid (ap);
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if (!ap_ssid)
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return FALSE;
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setting_ssid = nm_setting_wireless_get_ssid (s_wifi);
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if ( !setting_ssid
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|| !g_bytes_equal (ap_ssid, setting_ssid))
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return FALSE;
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/* BSSID checks */
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ap_bssid = nm_access_point_get_bssid (ap);
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if (!ap_bssid)
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return FALSE;
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setting_bssid = nm_setting_wireless_get_bssid (s_wifi);
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if (setting_bssid) {
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guint8 c[ETH_ALEN];
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if ( !nm_utils_hwaddr_aton (ap_bssid, c, ETH_ALEN)
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|| !nm_utils_hwaddr_matches (c, ETH_ALEN, setting_bssid, -1))
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return FALSE;
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}
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/* Mode */
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ap_mode = nm_access_point_get_mode (ap);
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if (ap_mode == NM_802_11_MODE_UNKNOWN)
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return FALSE;
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setting_mode = nm_setting_wireless_get_mode (s_wifi);
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if (setting_mode && ap_mode) {
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if (!strcmp (setting_mode, "infrastructure") && (ap_mode != NM_802_11_MODE_INFRA))
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return FALSE;
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if (!strcmp (setting_mode, "adhoc") && (ap_mode != NM_802_11_MODE_ADHOC))
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return FALSE;
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/* Hotspot never matches against APs as it's a device-specific mode. */
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if (!strcmp (setting_mode, "ap"))
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return FALSE;
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}
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/* Band and Channel/Frequency */
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ap_freq = nm_access_point_get_frequency (ap);
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if (ap_freq) {
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setting_band = nm_setting_wireless_get_band (s_wifi);
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if (g_strcmp0 (setting_band, "a") == 0) {
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if (ap_freq < 4915 || ap_freq > 5825)
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return FALSE;
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} else if (g_strcmp0 (setting_band, "bg") == 0) {
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if (ap_freq < 2412 || ap_freq > 2484)
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return FALSE;
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}
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setting_chan = nm_setting_wireless_get_channel (s_wifi);
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if (setting_chan) {
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ap_chan = nm_utils_wifi_freq_to_channel (ap_freq);
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if (setting_chan != ap_chan)
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return FALSE;
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}
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}
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s_wsec = nm_connection_get_setting_wireless_security (connection);
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if (!nm_setting_wireless_ap_security_compatible (s_wifi,
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s_wsec,
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nm_access_point_get_flags (ap),
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nm_access_point_get_wpa_flags (ap),
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nm_access_point_get_rsn_flags (ap),
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ap_mode))
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return FALSE;
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return TRUE;
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}
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/**
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* nm_access_point_filter_connections:
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* @ap: an #NMAccessPoint to filter connections for
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* @connections: (element-type NMConnection): an array of #NMConnections to
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* filter
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*
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* Filters a given array of connections for a given #NMAccessPoint object and
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* returns connections which may be activated with the access point. Any
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* returned connections will match the @ap's SSID and (if given) BSSID and
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* other attributes like security settings, channel, etc.
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*
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* To obtain the list of connections that are compatible with this access point,
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* use nm_client_get_connections() and then filter the returned list for a given
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* #NMDevice using nm_device_filter_connections() and finally filter that list
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* with this function.
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*
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* Returns: (transfer container) (element-type NMConnection): an array of
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* #NMConnections that could be activated with the given @ap. The array should
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* be freed with g_ptr_array_unref() when it is no longer required.
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**/
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GPtrArray *
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nm_access_point_filter_connections (NMAccessPoint *ap, const GPtrArray *connections)
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{
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GPtrArray *filtered;
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int i;
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filtered = g_ptr_array_new_with_free_func (g_object_unref);
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for (i = 0; i < connections->len; i++) {
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NMConnection *candidate = connections->pdata[i];
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if (nm_access_point_connection_valid (ap, candidate))
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g_ptr_array_add (filtered, g_object_ref (candidate));
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}
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return filtered;
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}
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/*****************************************************************************/
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static void
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nm_access_point_init (NMAccessPoint *ap)
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{
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NM_ACCESS_POINT_GET_PRIVATE (ap)->last_seen = -1;
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}
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static void
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finalize (GObject *object)
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{
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NMAccessPointPrivate *priv = NM_ACCESS_POINT_GET_PRIVATE (object);
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if (priv->ssid)
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g_bytes_unref (priv->ssid);
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g_free (priv->bssid);
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G_OBJECT_CLASS (nm_access_point_parent_class)->finalize (object);
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}
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static void
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get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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NMAccessPoint *ap = NM_ACCESS_POINT (object);
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switch (prop_id) {
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case PROP_FLAGS:
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g_value_set_flags (value, nm_access_point_get_flags (ap));
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break;
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case PROP_WPA_FLAGS:
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g_value_set_flags (value, nm_access_point_get_wpa_flags (ap));
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break;
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case PROP_RSN_FLAGS:
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g_value_set_flags (value, nm_access_point_get_rsn_flags (ap));
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break;
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case PROP_SSID:
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g_value_set_boxed (value, nm_access_point_get_ssid (ap));
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break;
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case PROP_FREQUENCY:
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g_value_set_uint (value, nm_access_point_get_frequency (ap));
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break;
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case PROP_HW_ADDRESS:
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g_value_set_string (value, nm_access_point_get_bssid (ap));
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break;
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case PROP_BSSID:
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g_value_set_string (value, nm_access_point_get_bssid (ap));
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break;
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case PROP_MODE:
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g_value_set_enum (value, nm_access_point_get_mode (ap));
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break;
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case PROP_MAX_BITRATE:
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g_value_set_uint (value, nm_access_point_get_max_bitrate (ap));
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break;
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case PROP_STRENGTH:
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g_value_set_uchar (value, nm_access_point_get_strength (ap));
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break;
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case PROP_LAST_SEEN:
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g_value_set_int (value, nm_access_point_get_last_seen (ap));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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init_dbus (NMObject *object)
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{
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NMAccessPointPrivate *priv = NM_ACCESS_POINT_GET_PRIVATE (object);
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const NMPropertiesInfo property_info[] = {
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{ NM_ACCESS_POINT_FLAGS, &priv->flags },
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{ NM_ACCESS_POINT_WPA_FLAGS, &priv->wpa_flags },
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{ NM_ACCESS_POINT_RSN_FLAGS, &priv->rsn_flags },
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{ NM_ACCESS_POINT_SSID, &priv->ssid },
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{ NM_ACCESS_POINT_FREQUENCY, &priv->frequency },
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/* The D-Bus property is HwAddress, but the GObject property is "bssid" */
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{ NM_ACCESS_POINT_HW_ADDRESS, &priv->bssid },
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{ NM_ACCESS_POINT_MODE, &priv->mode },
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{ NM_ACCESS_POINT_MAX_BITRATE, &priv->max_bitrate },
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{ NM_ACCESS_POINT_STRENGTH, &priv->strength },
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{ NM_ACCESS_POINT_LAST_SEEN, &priv->last_seen },
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{ NULL },
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};
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NM_OBJECT_CLASS (nm_access_point_parent_class)->init_dbus (object);
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_nm_object_register_properties (object,
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NM_DBUS_INTERFACE_ACCESS_POINT,
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property_info);
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}
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static void
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nm_access_point_class_init (NMAccessPointClass *ap_class)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (ap_class);
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NMObjectClass *nm_object_class = NM_OBJECT_CLASS (ap_class);
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g_type_class_add_private (ap_class, sizeof (NMAccessPointPrivate));
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/* virtual methods */
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object_class->get_property = get_property;
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object_class->finalize = finalize;
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nm_object_class->init_dbus = init_dbus;
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/* properties */
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/**
|
|
* NMAccessPoint:flags:
|
|
*
|
|
* The flags of the access point.
|
|
**/
|
|
g_object_class_install_property
|
|
(object_class, PROP_FLAGS,
|
|
g_param_spec_flags (NM_ACCESS_POINT_FLAGS, "", "",
|
|
NM_TYPE_802_11_AP_FLAGS,
|
|
NM_802_11_AP_FLAGS_NONE,
|
|
G_PARAM_READABLE |
|
|
G_PARAM_STATIC_STRINGS));
|
|
|
|
/**
|
|
* NMAccessPoint:wpa-flags:
|
|
*
|
|
* The WPA flags of the access point.
|
|
**/
|
|
g_object_class_install_property
|
|
(object_class, PROP_WPA_FLAGS,
|
|
g_param_spec_flags (NM_ACCESS_POINT_WPA_FLAGS, "", "",
|
|
NM_TYPE_802_11_AP_SECURITY_FLAGS,
|
|
NM_802_11_AP_SEC_NONE,
|
|
G_PARAM_READABLE |
|
|
G_PARAM_STATIC_STRINGS));
|
|
|
|
/**
|
|
* NMAccessPoint:rsn-flags:
|
|
*
|
|
* The RSN flags of the access point.
|
|
**/
|
|
g_object_class_install_property
|
|
(object_class, PROP_RSN_FLAGS,
|
|
g_param_spec_flags (NM_ACCESS_POINT_RSN_FLAGS, "", "",
|
|
NM_TYPE_802_11_AP_SECURITY_FLAGS,
|
|
NM_802_11_AP_SEC_NONE,
|
|
G_PARAM_READABLE |
|
|
G_PARAM_STATIC_STRINGS));
|
|
|
|
/**
|
|
* NMAccessPoint:ssid:
|
|
*
|
|
* The SSID of the access point, or %NULL if it is not known.
|
|
**/
|
|
g_object_class_install_property
|
|
(object_class, PROP_SSID,
|
|
g_param_spec_boxed (NM_ACCESS_POINT_SSID, "", "",
|
|
G_TYPE_BYTES,
|
|
G_PARAM_READABLE |
|
|
G_PARAM_STATIC_STRINGS));
|
|
|
|
/**
|
|
* NMAccessPoint:frequency:
|
|
*
|
|
* The frequency of the access point.
|
|
**/
|
|
g_object_class_install_property
|
|
(object_class, PROP_FREQUENCY,
|
|
g_param_spec_uint (NM_ACCESS_POINT_FREQUENCY, "", "",
|
|
0, 10000, 0,
|
|
G_PARAM_READABLE |
|
|
G_PARAM_STATIC_STRINGS));
|
|
|
|
/**
|
|
* NMAccessPoint:bssid:
|
|
*
|
|
* The BSSID of the access point.
|
|
**/
|
|
g_object_class_install_property
|
|
(object_class, PROP_BSSID,
|
|
g_param_spec_string (NM_ACCESS_POINT_BSSID, "", "",
|
|
NULL,
|
|
G_PARAM_READABLE |
|
|
G_PARAM_STATIC_STRINGS));
|
|
|
|
/**
|
|
* NMAccessPoint:hw-address:
|
|
*
|
|
* Alias for #NMAccessPoint:bssid.
|
|
*
|
|
* Deprecated: 1.0: use #NMAccessPoint:bssid.
|
|
**/
|
|
g_object_class_install_property
|
|
(object_class, PROP_HW_ADDRESS,
|
|
g_param_spec_string (NM_ACCESS_POINT_HW_ADDRESS, "", "",
|
|
NULL,
|
|
G_PARAM_READABLE |
|
|
G_PARAM_STATIC_STRINGS));
|
|
|
|
/**
|
|
* NMAccessPoint:mode:
|
|
*
|
|
* The mode of the access point; either "infrastructure" (a central
|
|
* coordinator of the wireless network allowing clients to connect) or
|
|
* "ad-hoc" (a network with no central controller).
|
|
**/
|
|
g_object_class_install_property
|
|
(object_class, PROP_MODE,
|
|
g_param_spec_enum (NM_ACCESS_POINT_MODE, "", "",
|
|
NM_TYPE_802_11_MODE,
|
|
NM_802_11_MODE_INFRA,
|
|
G_PARAM_READABLE |
|
|
G_PARAM_STATIC_STRINGS));
|
|
|
|
/**
|
|
* NMAccessPoint:max-bitrate:
|
|
*
|
|
* The maximum bit rate of the access point in kbit/s.
|
|
**/
|
|
g_object_class_install_property
|
|
(object_class, PROP_MAX_BITRATE,
|
|
g_param_spec_uint (NM_ACCESS_POINT_MAX_BITRATE, "", "",
|
|
0, G_MAXUINT32, 0,
|
|
G_PARAM_READABLE |
|
|
G_PARAM_STATIC_STRINGS));
|
|
|
|
/**
|
|
* NMAccessPoint:strength:
|
|
*
|
|
* The current signal strength of the access point.
|
|
**/
|
|
g_object_class_install_property
|
|
(object_class, PROP_STRENGTH,
|
|
g_param_spec_uchar (NM_ACCESS_POINT_STRENGTH, "", "",
|
|
0, G_MAXUINT8, 0,
|
|
G_PARAM_READABLE |
|
|
G_PARAM_STATIC_STRINGS));
|
|
|
|
/**
|
|
* NMAccessPoint:last-seen:
|
|
*
|
|
* The timestamp (in CLOCK_BOOTTIME seconds) for the last time the
|
|
* access point was found in scan results. A value of -1 means the
|
|
* access point has not been found in a scan.
|
|
*
|
|
* Since: 1.2
|
|
**/
|
|
g_object_class_install_property
|
|
(object_class, PROP_LAST_SEEN,
|
|
g_param_spec_int (NM_ACCESS_POINT_LAST_SEEN, "", "",
|
|
-1, G_MAXINT, -1,
|
|
G_PARAM_READABLE |
|
|
G_PARAM_STATIC_STRINGS));
|
|
}
|