mirror of
https://gitlab.freedesktop.org/NetworkManager/NetworkManager.git
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57aa5e2a9d
These types are all subclasses of NMObject. These instances are commonly created by NMClient itself. It makes no sense that a user would instantiate the type. Much less does it make sense to subclass them. Hide the object and class structures from public API. This is an API and ABI break, but of something that is very likely unused. This is mainly done to embed the private structure in the object itself. This has benefits for performance and debugability. But most importantly, we can obtain a static offset where to access the private data. That means, we can use the information to access the data pointer generically, as we will need later. This is not done for the internal types NMManager, NMRemoteSettings, and NMDnsManager. These types will be dropped later.
624 lines
17 KiB
C
624 lines
17 KiB
C
// SPDX-License-Identifier: LGPL-2.1+
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/*
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* Copyright (C) 2007 - 2008 Novell, Inc.
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* Copyright (C) 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 "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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/*****************************************************************************/
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NM_GOBJECT_PROPERTIES_DEFINE_BASE (
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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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);
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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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int last_seen;
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} NMAccessPointPrivate;
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struct _NMAccessPoint {
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NMObject parent;
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NMAccessPointPrivate _priv;
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};
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struct _NMAccessPointClass {
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NMObjectClass parent;
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};
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G_DEFINE_TYPE (NMAccessPoint, nm_access_point, NM_TYPE_OBJECT)
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#define NM_ACCESS_POINT_GET_PRIVATE(self) _NM_GET_PRIVATE(self, NMAccessPoint, NM_IS_ACCESS_POINT, NMObject)
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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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int
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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, int, 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 full) (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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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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/**
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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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obj_properties[PROP_FLAGS] =
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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.
|
|
**/
|
|
obj_properties[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.
|
|
**/
|
|
obj_properties[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.
|
|
**/
|
|
obj_properties[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.
|
|
**/
|
|
obj_properties[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.
|
|
**/
|
|
obj_properties[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.
|
|
**/
|
|
obj_properties[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).
|
|
**/
|
|
obj_properties[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.
|
|
**/
|
|
obj_properties[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.
|
|
**/
|
|
obj_properties[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
|
|
**/
|
|
obj_properties[PROP_LAST_SEEN] =
|
|
g_param_spec_int (NM_ACCESS_POINT_LAST_SEEN, "", "",
|
|
-1, G_MAXINT, -1,
|
|
G_PARAM_READABLE |
|
|
G_PARAM_STATIC_STRINGS);
|
|
|
|
g_object_class_install_properties (object_class, _PROPERTY_ENUMS_LAST, obj_properties);
|
|
}
|