mirror of
https://gitlab.freedesktop.org/NetworkManager/NetworkManager
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8bace23beb
- All internal source files (except "examples", which are not internal) should include "config.h" first. As also all internal source files should include "nm-default.h", let "config.h" be included by "nm-default.h" and include "nm-default.h" as first in every source file. We already wanted to include "nm-default.h" before other headers because it might contains some fixes (like "nm-glib.h" compatibility) that is required first. - After including "nm-default.h", we optinally allow for including the corresponding header file for the source file at hand. The idea is to ensure that each header file is self contained. - Don't include "config.h" or "nm-default.h" in any header file (except "nm-sd-adapt.h"). Public headers anyway must not include these headers, and internal headers are never included after "nm-default.h", as of the first previous point. - Include all internal headers with quotes instead of angle brackets. In practice it doesn't matter, because in our public headers we must include other headers with angle brackets. As we use our public headers also to compile our interal source files, effectively the result must be the same. Still do it for consistency. - Except for <config.h> itself. Include it with angle brackets as suggested by https://www.gnu.org/software/autoconf/manual/autoconf.html#Configuration-Headers
642 lines
18 KiB
C
642 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.
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*
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* Returns: the frequency
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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_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.
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*
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* Returns: the signal strength
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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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g_assert (s_con);
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ctype = nm_setting_connection_get_connection_type (s_con);
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if (strcmp (ctype, NM_SETTING_WIRELESS_SETTING_NAME) != 0)
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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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g_warn_if_fail (ap_ssid != NULL);
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setting_ssid = nm_setting_wireless_get_ssid (s_wifi);
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if (!setting_ssid || !ap_ssid)
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return FALSE;
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if (!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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g_warn_if_fail (ap_bssid);
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setting_bssid = nm_setting_wireless_get_bssid (s_wifi);
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if (setting_bssid && ap_bssid) {
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if (!nm_utils_hwaddr_matches (ap_bssid, -1, 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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g_warn_if_fail (ap_mode != NM_802_11_MODE_UNKNOWN);
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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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_nm_object_class_add_interface (nm_object_class, NM_DBUS_INTERFACE_ACCESS_POINT);
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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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/**
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* NMAccessPoint:flags:
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*
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* The flags of the access point.
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**/
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g_object_class_install_property
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(object_class, PROP_FLAGS,
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g_param_spec_flags (NM_ACCESS_POINT_FLAGS, "", "",
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NM_TYPE_802_11_AP_FLAGS,
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NM_802_11_AP_FLAGS_NONE,
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G_PARAM_READABLE |
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G_PARAM_STATIC_STRINGS));
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/**
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* NMAccessPoint:wpa-flags:
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*
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* The WPA flags of the access point.
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**/
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g_object_class_install_property
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(object_class, PROP_WPA_FLAGS,
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g_param_spec_flags (NM_ACCESS_POINT_WPA_FLAGS, "", "",
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NM_TYPE_802_11_AP_SECURITY_FLAGS,
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NM_802_11_AP_SEC_NONE,
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G_PARAM_READABLE |
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G_PARAM_STATIC_STRINGS));
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/**
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* NMAccessPoint:rsn-flags:
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*
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* The RSN flags of the access point.
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**/
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g_object_class_install_property
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(object_class, PROP_RSN_FLAGS,
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g_param_spec_flags (NM_ACCESS_POINT_RSN_FLAGS, "", "",
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NM_TYPE_802_11_AP_SECURITY_FLAGS,
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NM_802_11_AP_SEC_NONE,
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G_PARAM_READABLE |
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G_PARAM_STATIC_STRINGS));
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/**
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* NMAccessPoint:ssid:
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*
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* The SSID of the access point, or %NULL if it is not known.
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**/
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g_object_class_install_property
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(object_class, PROP_SSID,
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g_param_spec_boxed (NM_ACCESS_POINT_SSID, "", "",
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G_TYPE_BYTES,
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G_PARAM_READABLE |
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G_PARAM_STATIC_STRINGS));
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/**
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* NMAccessPoint:frequency:
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*
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* The frequency of the access point.
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**/
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g_object_class_install_property
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(object_class, PROP_FREQUENCY,
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g_param_spec_uint (NM_ACCESS_POINT_FREQUENCY, "", "",
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0, 10000, 0,
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G_PARAM_READABLE |
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G_PARAM_STATIC_STRINGS));
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/**
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* NMAccessPoint:bssid:
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*
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* The BSSID of the access point.
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**/
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g_object_class_install_property
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(object_class, PROP_BSSID,
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g_param_spec_string (NM_ACCESS_POINT_BSSID, "", "",
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NULL,
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G_PARAM_READABLE |
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G_PARAM_STATIC_STRINGS));
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/**
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* NMAccessPoint:hw-address:
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*
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* Alias for #NMAccessPoint:bssid.
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*
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* Deprecated: 1.0: use #NMAccessPoint:bssid.
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**/
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g_object_class_install_property
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(object_class, PROP_HW_ADDRESS,
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g_param_spec_string (NM_ACCESS_POINT_HW_ADDRESS, "", "",
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NULL,
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G_PARAM_READABLE |
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G_PARAM_STATIC_STRINGS));
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/**
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* NMAccessPoint:mode:
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*
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* The mode of the access point; either "infrastructure" (a central
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* coordinator of the wireless network allowing clients to connect) or
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* "ad-hoc" (a network with no central controller).
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**/
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g_object_class_install_property
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(object_class, PROP_MODE,
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g_param_spec_enum (NM_ACCESS_POINT_MODE, "", "",
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NM_TYPE_802_11_MODE,
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NM_802_11_MODE_INFRA,
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G_PARAM_READABLE |
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G_PARAM_STATIC_STRINGS));
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/**
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* NMAccessPoint:max-bitrate:
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*
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* The maximum bit rate of the access point in kbit/s.
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**/
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g_object_class_install_property
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(object_class, PROP_MAX_BITRATE,
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g_param_spec_uint (NM_ACCESS_POINT_MAX_BITRATE, "", "",
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0, G_MAXUINT32, 0,
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G_PARAM_READABLE |
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G_PARAM_STATIC_STRINGS));
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/**
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* NMAccessPoint:strength:
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*
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* The current signal strength of the access point.
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**/
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g_object_class_install_property
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(object_class, PROP_STRENGTH,
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g_param_spec_uchar (NM_ACCESS_POINT_STRENGTH, "", "",
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0, G_MAXUINT8, 0,
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G_PARAM_READABLE |
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G_PARAM_STATIC_STRINGS));
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/**
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* NMAccessPoint:last-seen:
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*
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* 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
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* access point has not been found in a scan.
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*
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* Since: 1.2
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**/
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g_object_class_install_property
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(object_class, PROP_LAST_SEEN,
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g_param_spec_int (NM_ACCESS_POINT_LAST_SEEN, "", "",
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-1, G_MAXINT, -1,
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G_PARAM_READABLE |
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G_PARAM_STATIC_STRINGS));
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}
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