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NetworkManager/src/nm-active-connection.c

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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/* NetworkManager -- Network link manager
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Copyright (C) 2008 - 2014 Red Hat, Inc.
*/
#include "nm-default.h"
#include "nm-active-connection.h"
#include "nm-common-macros.h"
#include "nm-dbus-interface.h"
#include "nm-device.h"
#include "nm-settings-connection.h"
#include "nm-simple-connection.h"
#include "nm-auth-utils.h"
#include "nm-auth-subject.h"
#include "NetworkManagerUtils.h"
#include "nm-core-internal.h"
#include "nmdbus-active-connection.h"
/* Base class for anything implementing the Connection.Active D-Bus interface */
G_DEFINE_ABSTRACT_TYPE (NMActiveConnection, nm_active_connection, NM_TYPE_EXPORTED_OBJECT)
#define NM_ACTIVE_CONNECTION_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), \
NM_TYPE_ACTIVE_CONNECTION, \
NMActiveConnectionPrivate))
typedef struct {
NMSettingsConnection *settings_connection;
NMConnection *applied_connection;
char *specific_object;
NMDevice *device;
guint64 version_id;
char *pending_activation_id;
gboolean is_default;
gboolean is_default6;
NMActiveConnectionState state;
gboolean state_set;
gboolean vpn;
NMAuthSubject *subject;
NMActiveConnection *master;
gboolean master_ready;
NMActiveConnection *parent;
gboolean assumed;
NMAuthChain *chain;
const char *wifi_shared_permission;
NMActiveConnectionAuthResultFunc result_func;
gpointer user_data1;
gpointer user_data2;
} NMActiveConnectionPrivate;
NM_GOBJECT_PROPERTIES_DEFINE (NMActiveConnection,
PROP_CONNECTION,
PROP_ID,
PROP_UUID,
PROP_TYPE,
PROP_SPECIFIC_OBJECT,
PROP_DEVICES,
PROP_STATE,
PROP_DEFAULT,
PROP_IP4_CONFIG,
PROP_DHCP4_CONFIG,
PROP_DEFAULT6,
PROP_IP6_CONFIG,
PROP_DHCP6_CONFIG,
PROP_VPN,
PROP_MASTER,
PROP_INT_SETTINGS_CONNECTION,
PROP_INT_DEVICE,
PROP_INT_SUBJECT,
PROP_INT_MASTER,
PROP_INT_MASTER_READY,
);
enum {
DEVICE_CHANGED,
DEVICE_METERED_CHANGED,
PARENT_ACTIVE,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL] = { 0 };
static void check_master_ready (NMActiveConnection *self);
static void _device_cleanup (NMActiveConnection *self);
/****************************************************************/
#define _NMLOG_DOMAIN LOGD_DEVICE
#define _NMLOG_PREFIX_NAME "active-connection"
#define _NMLOG(level, ...) \
G_STMT_START { \
char _sbuf[64]; \
\
nm_log ((level), _NMLOG_DOMAIN, \
"%s%s: " _NM_UTILS_MACRO_FIRST (__VA_ARGS__), \
_NMLOG_PREFIX_NAME, \
self ? nm_sprintf_buf (_sbuf, "[%p]", self) : "" \
_NM_UTILS_MACRO_REST (__VA_ARGS__)); \
} G_STMT_END
/****************************************************************/
NM_UTILS_LOOKUP_STR_DEFINE_STATIC (_state_to_string, NMActiveConnectionState,
NM_UTILS_LOOKUP_DEFAULT (NULL),
NM_UTILS_LOOKUP_STR_ITEM (NM_ACTIVE_CONNECTION_STATE_UNKNOWN, "unknown"),
NM_UTILS_LOOKUP_STR_ITEM (NM_ACTIVE_CONNECTION_STATE_ACTIVATING, "activating"),
NM_UTILS_LOOKUP_STR_ITEM (NM_ACTIVE_CONNECTION_STATE_ACTIVATED, "activated"),
NM_UTILS_LOOKUP_STR_ITEM (NM_ACTIVE_CONNECTION_STATE_DEACTIVATING, "deactivating"),
NM_UTILS_LOOKUP_STR_ITEM (NM_ACTIVE_CONNECTION_STATE_DEACTIVATED, "deactivated"),
);
#define state_to_string(state) NM_UTILS_LOOKUP_STR (_state_to_string, state)
/****************************************************************/
static void
_settings_connection_updated (NMSettingsConnection *connection,
gboolean by_user,
gpointer user_data)
{
NMActiveConnection *self = user_data;
/* we don't know which properties actually changed. Just to be sure,
* notify about all possible properties. After all, an update of a
* connection is a rare event. */
_notify (self, PROP_ID);
/* it's a bit odd to update the TYPE of an active connection. But the alternative
* is unexpected too. */
_notify (self, PROP_TYPE);
/* currently, the UUID and the exported CONNECTION path cannot change. Later, we might
* want to support a re-link operation, which associates an active-connection with a different
* settings-connection. */
}
static void
_set_settings_connection (NMActiveConnection *self, NMSettingsConnection *connection)
{
NMActiveConnectionPrivate *priv = NM_ACTIVE_CONNECTION_GET_PRIVATE (self);
if (priv->settings_connection == connection)
return;
if (priv->settings_connection) {
g_signal_handlers_disconnect_by_func (priv->settings_connection, _settings_connection_updated, self);
g_clear_object (&priv->settings_connection);
}
if (connection) {
priv->settings_connection = g_object_ref (connection);
g_signal_connect (connection, NM_SETTINGS_CONNECTION_UPDATED_INTERNAL, (GCallback) _settings_connection_updated, self);
}
}
NMActiveConnectionState
nm_active_connection_get_state (NMActiveConnection *self)
{
return NM_ACTIVE_CONNECTION_GET_PRIVATE (self)->state;
}
void
nm_active_connection_set_state (NMActiveConnection *self,
NMActiveConnectionState new_state)
{
NMActiveConnectionPrivate *priv = NM_ACTIVE_CONNECTION_GET_PRIVATE (self);
NMActiveConnectionState old_state;
if (priv->state == new_state)
return;
/* DEACTIVATED is a terminal state */
if (priv->state == NM_ACTIVE_CONNECTION_STATE_DEACTIVATED)
g_return_if_fail (new_state != NM_ACTIVE_CONNECTION_STATE_DEACTIVATED);
_LOGD ("set state %s (was %s)",
state_to_string (new_state),
state_to_string (priv->state));
old_state = priv->state;
priv->state = new_state;
priv->state_set = TRUE;
_notify (self, PROP_STATE);
check_master_ready (self);
if ( new_state == NM_ACTIVE_CONNECTION_STATE_ACTIVATED
|| old_state == NM_ACTIVE_CONNECTION_STATE_ACTIVATED) {
nm_settings_connection_update_timestamp (priv->settings_connection,
(guint64) time (NULL), TRUE);
}
if (priv->device) {
if ( old_state < NM_ACTIVE_CONNECTION_STATE_ACTIVATED
&& new_state >= NM_ACTIVE_CONNECTION_STATE_ACTIVATED &&
priv->pending_activation_id)
{
nm_device_remove_pending_action (priv->device, priv->pending_activation_id, TRUE);
g_clear_pointer (&priv->pending_activation_id, g_free);
}
}
if ( new_state == NM_ACTIVE_CONNECTION_STATE_ACTIVATED
|| old_state == NM_ACTIVE_CONNECTION_STATE_ACTIVATED) {
_notify (self, PROP_IP4_CONFIG);
_notify (self, PROP_DHCP4_CONFIG);
_notify (self, PROP_IP6_CONFIG);
_notify (self, PROP_DHCP6_CONFIG);
}
if (priv->state == NM_ACTIVE_CONNECTION_STATE_DEACTIVATED) {
/* Device is no longer relevant when deactivated. So remove it and
* emit property change notification so clients re-read the value,
* which will be NULL due to conditions in get_property().
*/
_device_cleanup (self);
_notify (self, PROP_DEVICES);
}
}
const char *
nm_active_connection_get_settings_connection_id (NMActiveConnection *self)
{
NMSettingsConnection *con;
g_return_val_if_fail (NM_IS_ACTIVE_CONNECTION (self), NULL);
con = NM_ACTIVE_CONNECTION_GET_PRIVATE (self)->settings_connection;
return con
? nm_connection_get_id (NM_CONNECTION (con))
: NULL;
}
NMSettingsConnection *
_nm_active_connection_get_settings_connection (NMActiveConnection *self)
{
g_return_val_if_fail (NM_IS_ACTIVE_CONNECTION (self), NULL);
return NM_ACTIVE_CONNECTION_GET_PRIVATE (self)->settings_connection;
}
NMSettingsConnection *
nm_active_connection_get_settings_connection (NMActiveConnection *self)
{
NMSettingsConnection *con;
con = _nm_active_connection_get_settings_connection (self);
/* Only call this function on an active-connection that is already
* fully set-up (i.e. that has a settings-connection). Other uses
* indicate a bug. */
g_return_val_if_fail (con, NULL);
return con;
}
NMConnection *
nm_active_connection_get_applied_connection (NMActiveConnection *self)
{
NMConnection *con;
g_return_val_if_fail (NM_IS_ACTIVE_CONNECTION (self), NULL);
con = NM_ACTIVE_CONNECTION_GET_PRIVATE (self)->applied_connection;
/* Only call this function on an active-connection that is already
* fully set-up (i.e. that has a settings-connection). Other uses
* indicate a bug. */
g_return_val_if_fail (con, NULL);
return con;
}
void
nm_active_connection_set_settings_connection (NMActiveConnection *self,
NMSettingsConnection *connection)
{
NMActiveConnectionPrivate *priv;
g_return_if_fail (NM_IS_ACTIVE_CONNECTION (self));
priv = NM_ACTIVE_CONNECTION_GET_PRIVATE (self);
g_return_if_fail (NM_IS_SETTINGS_CONNECTION (connection));
g_return_if_fail (!priv->settings_connection);
g_return_if_fail (!priv->applied_connection);
/* Can't change connection after the ActiveConnection is exported over D-Bus.
*
* Later, we want to change the settings-connection of an activated connection.
* When doing that, this changes the assumption that the settings-connection
* never changes (once it's set). That has effects for NMVpnConnection and
* NMActivationRequest.
* For example, we'd have to cancel all pending seret requests. */
g_return_if_fail (!nm_exported_object_is_exported (NM_EXPORTED_OBJECT (self)));
_set_settings_connection (self, connection);
priv->applied_connection = nm_simple_connection_new_clone (NM_CONNECTION (priv->settings_connection));
nm_connection_clear_secrets (priv->applied_connection);
}
gboolean
nm_active_connection_has_unmodified_applied_connection (NMActiveConnection *self, NMSettingCompareFlags compare_flags)
{
NMActiveConnectionPrivate *priv;
g_return_val_if_fail (NM_IS_ACTIVE_CONNECTION (self), FALSE);
priv = NM_ACTIVE_CONNECTION_GET_PRIVATE (self);
g_return_val_if_fail (priv->settings_connection, FALSE);
return nm_settings_connection_has_unmodified_applied_connection (priv->settings_connection,
priv->applied_connection,
compare_flags);
}
/*******************************************************************/
void
nm_active_connection_clear_secrets (NMActiveConnection *self)
{
NMActiveConnectionPrivate *priv;
g_return_if_fail (NM_IS_ACTIVE_CONNECTION (self));
priv = NM_ACTIVE_CONNECTION_GET_PRIVATE (self);
if (nm_settings_connection_has_unmodified_applied_connection (priv->settings_connection,
priv->applied_connection,
NM_SETTING_COMPARE_FLAG_NONE))
nm_connection_clear_secrets ((NMConnection *) priv->settings_connection);
nm_connection_clear_secrets (priv->applied_connection);
}
/*******************************************************************/
const char *
nm_active_connection_get_specific_object (NMActiveConnection *self)
{
return NM_ACTIVE_CONNECTION_GET_PRIVATE (self)->specific_object;
}
void
nm_active_connection_set_specific_object (NMActiveConnection *self,
const char *specific_object)
{
NMActiveConnectionPrivate *priv = NM_ACTIVE_CONNECTION_GET_PRIVATE (self);
/* Nothing that calls this function should be using paths from D-Bus,
* where NM uses "/" to mean NULL.
*/
g_assert (g_strcmp0 (specific_object, "/") != 0);
if (g_strcmp0 (priv->specific_object, specific_object) == 0)
return;
g_free (priv->specific_object);
priv->specific_object = g_strdup (specific_object);
_notify (self, PROP_SPECIFIC_OBJECT);
}
void
nm_active_connection_set_default (NMActiveConnection *self, gboolean is_default)
{
NMActiveConnectionPrivate *priv;
g_return_if_fail (NM_IS_ACTIVE_CONNECTION (self));
is_default = !!is_default;
priv = NM_ACTIVE_CONNECTION_GET_PRIVATE (self);
if (priv->is_default == is_default)
return;
priv->is_default = is_default;
_notify (self, PROP_DEFAULT);
}
gboolean
nm_active_connection_get_default (NMActiveConnection *self)
{
g_return_val_if_fail (NM_IS_ACTIVE_CONNECTION (self), FALSE);
return NM_ACTIVE_CONNECTION_GET_PRIVATE (self)->is_default;
}
void
nm_active_connection_set_default6 (NMActiveConnection *self, gboolean is_default6)
{
NMActiveConnectionPrivate *priv;
g_return_if_fail (NM_IS_ACTIVE_CONNECTION (self));
is_default6 = !!is_default6;
priv = NM_ACTIVE_CONNECTION_GET_PRIVATE (self);
if (priv->is_default6 == is_default6)
return;
priv->is_default6 = is_default6;
_notify (self, PROP_DEFAULT6);
}
gboolean
nm_active_connection_get_default6 (NMActiveConnection *self)
{
g_return_val_if_fail (NM_IS_ACTIVE_CONNECTION (self), FALSE);
return NM_ACTIVE_CONNECTION_GET_PRIVATE (self)->is_default6;
}
NMAuthSubject *
nm_active_connection_get_subject (NMActiveConnection *self)
{
g_return_val_if_fail (NM_IS_ACTIVE_CONNECTION (self), NULL);
return NM_ACTIVE_CONNECTION_GET_PRIVATE (self)->subject;
}
gboolean
nm_active_connection_get_user_requested (NMActiveConnection *self)
{
g_return_val_if_fail (NM_IS_ACTIVE_CONNECTION (self), FALSE);
return nm_auth_subject_is_unix_process (NM_ACTIVE_CONNECTION_GET_PRIVATE (self)->subject);
}
NMDevice *
nm_active_connection_get_device (NMActiveConnection *self)
{
g_return_val_if_fail (NM_IS_ACTIVE_CONNECTION (self), NULL);
return NM_ACTIVE_CONNECTION_GET_PRIVATE (self)->device;
}
static void
device_state_changed (NMDevice *device,
NMDeviceState new_state,
NMDeviceState old_state,
NMDeviceStateReason reason,
gpointer user_data)
{
NMActiveConnection *self = NM_ACTIVE_CONNECTION (user_data);
NMActiveConnectionPrivate *priv = NM_ACTIVE_CONNECTION_GET_PRIVATE (self);
/* When already deactivated or before activation, device state changes are useless */
if (priv->state >= NM_ACTIVE_CONNECTION_STATE_DEACTIVATED)
return;
if (old_state < NM_DEVICE_STATE_DISCONNECTED)
return;
/* Let subclasses handle the state change */
if (NM_ACTIVE_CONNECTION_GET_CLASS (self)->device_state_changed)
NM_ACTIVE_CONNECTION_GET_CLASS (self)->device_state_changed (self, device, new_state, old_state);
}
static void
device_master_changed (GObject *object,
GParamSpec *pspec,
gpointer user_data)
{
NMDevice *device = NM_DEVICE (object);
NMActiveConnection *self = NM_ACTIVE_CONNECTION (user_data);
NMActiveConnection *master;
NMActiveConnectionState master_state;
if (NM_ACTIVE_CONNECTION (nm_device_get_act_request (device)) != self)
return;
if (!nm_device_get_master (device))
return;
if (!nm_active_connection_get_master (self))
return;
g_signal_handlers_disconnect_by_func (device, G_CALLBACK (device_master_changed), self);
master = nm_active_connection_get_master (self);
master_state = nm_active_connection_get_state (master);
if (master_state >= NM_ACTIVE_CONNECTION_STATE_DEACTIVATING) {
/* Master failed before attaching the slave */
if (NM_ACTIVE_CONNECTION_GET_CLASS (self)->master_failed)
NM_ACTIVE_CONNECTION_GET_CLASS (self)->master_failed (self);
}
}
static void
device_metered_changed (GObject *object,
GParamSpec *pspec,
gpointer user_data)
{
NMActiveConnection *self = (NMActiveConnection *) user_data;
NMDevice *device = NM_DEVICE (object);
g_return_if_fail (NM_IS_ACTIVE_CONNECTION (self));
g_signal_emit (self, signals[DEVICE_METERED_CHANGED], 0, nm_device_get_metered (device));
}
gboolean
nm_active_connection_set_device (NMActiveConnection *self, NMDevice *device)
{
NMActiveConnectionPrivate *priv;
gs_unref_object NMDevice *old_device = NULL;
g_return_val_if_fail (NM_IS_ACTIVE_CONNECTION (self), FALSE);
g_return_val_if_fail (!device || NM_IS_DEVICE (device), FALSE);
priv = NM_ACTIVE_CONNECTION_GET_PRIVATE (self);
if (device == priv->device)
return TRUE;
_LOGD ("set device %s%s%s [%p]",
NM_PRINT_FMT_QUOTED (device && nm_device_get_iface (device),
"\"",
nm_device_get_iface (device),
"\"",
device ? "(unknown)" : "(null)"),
device);
old_device = priv->device ? g_object_ref (priv->device) : NULL;
_device_cleanup (self);
if (device) {
/* Device obviously can't be its own master */
g_return_val_if_fail (!priv->master || device != nm_active_connection_get_device (priv->master), FALSE);
priv->device = g_object_ref (device);
g_signal_connect (device, NM_DEVICE_STATE_CHANGED,
G_CALLBACK (device_state_changed), self);
g_signal_connect (device, "notify::master",
G_CALLBACK (device_master_changed), self);
g_signal_connect (device, "notify::" NM_DEVICE_METERED,
G_CALLBACK (device_metered_changed), self);
if (!priv->assumed) {
priv->pending_activation_id = g_strdup_printf ("activation::%p", (void *)self);
nm_device_add_pending_action (device, priv->pending_activation_id, TRUE);
}
} else {
/* The ActiveConnection's device can only be cleared after the
* connection is activated.
*/
g_warn_if_fail (priv->state > NM_ACTIVE_CONNECTION_STATE_UNKNOWN);
priv->device = NULL;
}
_notify (self, PROP_INT_DEVICE);
g_signal_emit (self, signals[DEVICE_CHANGED], 0, priv->device, old_device);
_notify (self, PROP_DEVICES);
return TRUE;
}
NMActiveConnection *
nm_active_connection_get_master (NMActiveConnection *self)
{
g_return_val_if_fail (NM_IS_ACTIVE_CONNECTION (self), NULL);
return NM_ACTIVE_CONNECTION_GET_PRIVATE (self)->master;
}
/**
* nm_active_connection_get_master_ready:
* @self: the #NMActiveConnection
*
* Returns: %TRUE if the connection has a master connection, and that
* master connection is ready to accept slaves. Otherwise %FALSE.
*/
gboolean
nm_active_connection_get_master_ready (NMActiveConnection *self)
{
g_return_val_if_fail (NM_IS_ACTIVE_CONNECTION (self), FALSE);
return NM_ACTIVE_CONNECTION_GET_PRIVATE (self)->master_ready;
}
static void
check_master_ready (NMActiveConnection *self)
{
NMActiveConnectionPrivate *priv = NM_ACTIVE_CONNECTION_GET_PRIVATE (self);
gboolean signalling = FALSE;
/* ActiveConnetions don't enter the ACTIVATING state until they have a
* NMDevice in PREPARE or higher states, so the master active connection's
* device will be ready to accept slaves when the master is in ACTIVATING
* or higher states.
*/
if ( !priv->master_ready
&& priv->master
&& priv->state == NM_ACTIVE_CONNECTION_STATE_ACTIVATING
&& NM_IN_SET (nm_active_connection_get_state (priv->master),
NM_ACTIVE_CONNECTION_STATE_ACTIVATING,
NM_ACTIVE_CONNECTION_STATE_ACTIVATED)) {
signalling = TRUE;
}
_LOGD ("check-master-ready: %s (state %s, %s)",
signalling
? "signal"
: (priv->master_ready ? "already signalled" : "not signalling"),
state_to_string (priv->state),
priv->master
? nm_sprintf_bufa (128, "master %p is in state %s",
priv->master,
state_to_string (nm_active_connection_get_state (priv->master)))
: "no master");
if (signalling) {
priv->master_ready = TRUE;
_notify (self, PROP_INT_MASTER_READY);
/* Also notify clients to recheck the exported 'master' property to
* ensure that if the master connection was created without a device
* that we notify clients when the master device is known.
*/
_notify (self, PROP_MASTER);
}
}
static void
master_state_cb (NMActiveConnection *master,
GParamSpec *pspec,
gpointer user_data)
{
NMActiveConnection *self = NM_ACTIVE_CONNECTION (user_data);
NMActiveConnectionState master_state = nm_active_connection_get_state (master);
NMDevice *master_device = nm_active_connection_get_device (master);
check_master_ready (self);
if ( master_state == NM_ACTIVE_CONNECTION_STATE_DEACTIVATING
&& (!master_device || !nm_device_is_real (master_device))) {
/* Master failed without ever creating or realizing its device */
if (NM_ACTIVE_CONNECTION_GET_CLASS (self)->master_failed)
NM_ACTIVE_CONNECTION_GET_CLASS (self)->master_failed (self);
}
}
/**
* nm_active_connection_set_master:
* @self: the #NMActiveConnection
* @master: if the activation depends on another device (ie, bond or bridge
* master to which this device will be enslaved) pass the #NMActiveConnection
* that this activation request is a child of
*
* Sets the master active connection of @self.
*/
void
nm_active_connection_set_master (NMActiveConnection *self, NMActiveConnection *master)
{
NMActiveConnectionPrivate *priv;
g_return_if_fail (NM_IS_ACTIVE_CONNECTION (self));
g_return_if_fail (NM_IS_ACTIVE_CONNECTION (master));
priv = NM_ACTIVE_CONNECTION_GET_PRIVATE (self);
/* Master is write-once, and must be set before exporting the object */
g_return_if_fail (priv->master == NULL);
g_return_if_fail (!nm_exported_object_is_exported (NM_EXPORTED_OBJECT (self)));
if (priv->device) {
/* Note, the master ActiveConnection may not yet have a device */
g_return_if_fail (priv->device != nm_active_connection_get_device (master));
}
_LOGD ("set master %p, %s, state %s",
master,
nm_active_connection_get_settings_connection_id (master),
state_to_string (nm_active_connection_get_state (master)));
priv->master = g_object_ref (master);
g_signal_connect (priv->master,
"notify::" NM_ACTIVE_CONNECTION_STATE,
(GCallback) master_state_cb,
self);
check_master_ready (self);
}
void
nm_active_connection_set_assumed (NMActiveConnection *self, gboolean assumed)
{
NMActiveConnectionPrivate *priv = NM_ACTIVE_CONNECTION_GET_PRIVATE (self);
g_return_if_fail (priv->assumed == FALSE);
priv->assumed = assumed;
if (priv->pending_activation_id) {
nm_device_remove_pending_action (priv->device, priv->pending_activation_id, TRUE);
g_clear_pointer (&priv->pending_activation_id, g_free);
}
}
gboolean
nm_active_connection_get_assumed (NMActiveConnection *self)
{
return NM_ACTIVE_CONNECTION_GET_PRIVATE (self)->assumed;
}
/****************************************************************/
static void unwatch_parent (NMActiveConnection *self);
static void
parent_destroyed (gpointer user_data, GObject *parent)
{
NMActiveConnection *self = user_data;
unwatch_parent (self);
g_signal_emit (self, signals[PARENT_ACTIVE], 0, NULL);
}
static void
parent_state_cb (NMActiveConnection *parent_ac,
GParamSpec *pspec,
gpointer user_data)
{
NMActiveConnection *self = user_data;
NMActiveConnectionState parent_state = nm_active_connection_get_state (parent_ac);
if (parent_state < NM_ACTIVE_CONNECTION_STATE_ACTIVATED)
return;
unwatch_parent (self);
g_signal_emit (self, signals[PARENT_ACTIVE], 0, parent_ac);
}
static void
unwatch_parent (NMActiveConnection *self)
{
NMActiveConnectionPrivate *priv = NM_ACTIVE_CONNECTION_GET_PRIVATE (self);
g_signal_handlers_disconnect_by_func (priv->parent,
(GCallback) parent_state_cb,
self);
g_object_weak_unref ((GObject *) priv->parent, parent_destroyed, self);
priv->parent = NULL;
}
/**
* nm_active_connection_set_parent:
* @self: the #NMActiveConnection
* @parent: The #NMActiveConnection that must be active before the manager
* can proceed progressing the device to disconnected state for us.
*
* Sets the parent connection of @self. A "parent-active" signal will be
* emitted when the parent connection becomes active.
*/
void
nm_active_connection_set_parent (NMActiveConnection *self, NMActiveConnection *parent)
{
NMActiveConnectionPrivate *priv = NM_ACTIVE_CONNECTION_GET_PRIVATE (self);
g_return_if_fail (priv->parent == NULL);
priv->parent = parent;
g_signal_connect (priv->parent,
"notify::" NM_ACTIVE_CONNECTION_STATE,
(GCallback) parent_state_cb,
self);
g_object_weak_ref ((GObject *) priv->parent, parent_destroyed, self);
}
/****************************************************************/
static void
auth_done (NMAuthChain *chain,
GError *error,
GDBusMethodInvocation *unused,
gpointer user_data)
{
NMActiveConnection *self = NM_ACTIVE_CONNECTION (user_data);
NMActiveConnectionPrivate *priv = NM_ACTIVE_CONNECTION_GET_PRIVATE (self);
NMAuthCallResult result;
g_assert (priv->chain == chain);
g_assert (priv->result_func != NULL);
/* Must stay alive over the callback */
g_object_ref (self);
if (error) {
priv->result_func (self, FALSE, error->message, priv->user_data1, priv->user_data2);
goto done;
}
/* Caller has had a chance to obtain authorization, so we only need to
* check for 'yes' here.
*/
result = nm_auth_chain_get_result (chain, NM_AUTH_PERMISSION_NETWORK_CONTROL);
if (result != NM_AUTH_CALL_RESULT_YES) {
priv->result_func (self,
FALSE,
"Not authorized to control networking.",
priv->user_data1,
priv->user_data2);
goto done;
}
if (priv->wifi_shared_permission) {
result = nm_auth_chain_get_result (chain, priv->wifi_shared_permission);
if (result != NM_AUTH_CALL_RESULT_YES) {
priv->result_func (self,
FALSE,
"Not authorized to share connections via wifi.",
priv->user_data1,
priv->user_data2);
goto done;
}
}
/* Otherwise authorized and available to activate */
priv->result_func (self, TRUE, NULL, priv->user_data1, priv->user_data2);
done:
nm_auth_chain_unref (chain);
priv->chain = NULL;
priv->result_func = NULL;
priv->user_data1 = NULL;
priv->user_data2 = NULL;
g_object_unref (self);
}
/**
* nm_active_connection_authorize:
* @self: the #NMActiveConnection
* @initial_connection: (allow-none): for add-and-activate, there
* is no @settings_connection available when creating the active connection.
* Instead pass an alternative connection.
* @result_func: function to be called on success or error
* @user_data1: pointer passed to @result_func
* @user_data2: additional pointer passed to @result_func
*
* Checks whether the subject that initiated the active connection (read from
* the #NMActiveConnection::subject property) is authorized to complete this
* activation request.
*/
void
nm_active_connection_authorize (NMActiveConnection *self,
NMConnection *initial_connection,
NMActiveConnectionAuthResultFunc result_func,
gpointer user_data1,
gpointer user_data2)
{
NMActiveConnectionPrivate *priv = NM_ACTIVE_CONNECTION_GET_PRIVATE (self);
const char *wifi_permission = NULL;
NMConnection *con;
g_return_if_fail (result_func != NULL);
g_return_if_fail (priv->chain == NULL);
if (initial_connection) {
g_return_if_fail (NM_IS_CONNECTION (initial_connection));
g_return_if_fail (!priv->settings_connection);
g_return_if_fail (!priv->applied_connection);
con = initial_connection;
} else {
g_return_if_fail (NM_IS_SETTINGS_CONNECTION (priv->settings_connection));
g_return_if_fail (NM_IS_CONNECTION (priv->applied_connection));
con = priv->applied_connection;
}
priv->chain = nm_auth_chain_new_subject (priv->subject, NULL, auth_done, self);
g_assert (priv->chain);
/* Check that the subject is allowed to use networking at all */
nm_auth_chain_add_call (priv->chain, NM_AUTH_PERMISSION_NETWORK_CONTROL, TRUE);
/* Shared wifi connections require special permissions too */
wifi_permission = nm_utils_get_shared_wifi_permission (con);
if (wifi_permission) {
priv->wifi_shared_permission = wifi_permission;
nm_auth_chain_add_call (priv->chain, wifi_permission, TRUE);
}
/* Wait for authorization */
priv->result_func = result_func;
priv->user_data1 = user_data1;
priv->user_data2 = user_data2;
}
/****************************************************************/
static guint64
_version_id_new (void)
{
static guint64 id = 0;
return ++id;
}
guint64
nm_active_connection_version_id_get (NMActiveConnection *self)
{
g_return_val_if_fail (NM_IS_ACTIVE_CONNECTION (self), 0);
return NM_ACTIVE_CONNECTION_GET_PRIVATE (self)->version_id;
}
guint64
nm_active_connection_version_id_bump (NMActiveConnection *self)
{
NMActiveConnectionPrivate *priv;
g_return_val_if_fail (NM_IS_ACTIVE_CONNECTION (self), 0);
priv = NM_ACTIVE_CONNECTION_GET_PRIVATE (self);
priv->version_id = _version_id_new ();
_LOGT ("new version-id %llu", (long long unsigned) priv->version_id);
return priv->version_id;
}
/****************************************************************/
static void
nm_active_connection_init (NMActiveConnection *self)
{
NMActiveConnectionPrivate *priv = NM_ACTIVE_CONNECTION_GET_PRIVATE (self);
_LOGT ("creating");
priv->version_id = _version_id_new ();
}
static void
constructed (GObject *object)
{
NMActiveConnection *self = (NMActiveConnection *) object;
NMActiveConnectionPrivate *priv = NM_ACTIVE_CONNECTION_GET_PRIVATE (self);
G_OBJECT_CLASS (nm_active_connection_parent_class)->constructed (object);
_LOGD ("constructed (%s, version-id %llu)", G_OBJECT_TYPE_NAME (self), (long long unsigned) priv->version_id);
g_return_if_fail (priv->subject);
}
static void
set_property (GObject *object, guint prop_id,
const GValue *value, GParamSpec *pspec)
{
NMActiveConnection *self = (NMActiveConnection *) object;
NMActiveConnectionPrivate *priv = NM_ACTIVE_CONNECTION_GET_PRIVATE (self);
const char *tmp;
NMSettingsConnection *con;
switch (prop_id) {
case PROP_INT_SETTINGS_CONNECTION:
/* construct-only */
con = g_value_get_object (value);
if (con) {
_set_settings_connection (self, con);
priv->applied_connection = nm_simple_connection_new_clone ((NMConnection *) priv->settings_connection);
nm_connection_clear_secrets (priv->applied_connection);
}
break;
case PROP_INT_DEVICE:
/* construct-only */
nm_active_connection_set_device (self, g_value_get_object (value));
break;
case PROP_INT_SUBJECT:
priv->subject = g_value_dup_object (value);
break;
case PROP_INT_MASTER:
nm_active_connection_set_master (self, g_value_get_object (value));
break;
case PROP_SPECIFIC_OBJECT:
tmp = g_value_get_string (value);
/* NM uses "/" to mean NULL */
if (g_strcmp0 (tmp, "/") != 0)
priv->specific_object = g_strdup (tmp);
break;
case PROP_DEFAULT:
priv->is_default = !!g_value_get_boolean (value);
break;
case PROP_DEFAULT6:
priv->is_default6 = !!g_value_get_boolean (value);
break;
case PROP_VPN:
priv->vpn = g_value_get_boolean (value);
break;
case PROP_MASTER:
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
get_property (GObject *object, guint prop_id,
GValue *value, GParamSpec *pspec)
{
NMActiveConnectionPrivate *priv = NM_ACTIVE_CONNECTION_GET_PRIVATE (object);
GPtrArray *devices;
NMDevice *master_device = NULL;
switch (prop_id) {
case PROP_CONNECTION:
g_value_set_string (value, nm_connection_get_path (NM_CONNECTION (priv->settings_connection)));
break;
case PROP_ID:
g_value_set_string (value, nm_connection_get_id (NM_CONNECTION (priv->settings_connection)));
break;
case PROP_UUID:
g_value_set_string (value, nm_connection_get_uuid (NM_CONNECTION (priv->settings_connection)));
break;
case PROP_TYPE:
g_value_set_string (value, nm_connection_get_connection_type (NM_CONNECTION (priv->settings_connection)));
break;
case PROP_SPECIFIC_OBJECT:
g_value_set_string (value, priv->specific_object ? priv->specific_object : "/");
break;
case PROP_DEVICES:
devices = g_ptr_array_sized_new (2);
if (priv->device && priv->state < NM_ACTIVE_CONNECTION_STATE_DEACTIVATED)
g_ptr_array_add (devices, g_strdup (nm_exported_object_get_path (NM_EXPORTED_OBJECT (priv->device))));
g_ptr_array_add (devices, NULL);
g_value_take_boxed (value, (char **) g_ptr_array_free (devices, FALSE));
break;
case PROP_STATE:
if (priv->state_set)
g_value_set_uint (value, priv->state);
else {
/* When the AC has just been created, its externally-visible state should
* be "ACTIVATING", even though internally it is "UNKNOWN".
*/
g_value_set_uint (value, NM_ACTIVE_CONNECTION_STATE_ACTIVATING);
}
break;
case PROP_DEFAULT:
g_value_set_boolean (value, priv->is_default);
break;
case PROP_IP4_CONFIG:
/* The IP and DHCP config properties may be overridden by a subclass */
g_value_set_string (value, "/");
break;
case PROP_DHCP4_CONFIG:
g_value_set_string (value, "/");
break;
case PROP_DEFAULT6:
g_value_set_boolean (value, priv->is_default6);
break;
case PROP_IP6_CONFIG:
g_value_set_string (value, "/");
break;
case PROP_DHCP6_CONFIG:
g_value_set_string (value, "/");
break;
case PROP_VPN:
g_value_set_boolean (value, priv->vpn);
break;
case PROP_MASTER:
if (priv->master)
master_device = nm_active_connection_get_device (priv->master);
nm_utils_g_value_set_object_path (value, master_device);
break;
case PROP_INT_SUBJECT:
g_value_set_object (value, priv->subject);
break;
case PROP_INT_MASTER_READY:
g_value_set_boolean (value, priv->master_ready);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
_device_cleanup (NMActiveConnection *self)
{
NMActiveConnectionPrivate *priv = NM_ACTIVE_CONNECTION_GET_PRIVATE (self);
if (priv->device) {
g_signal_handlers_disconnect_by_func (priv->device, G_CALLBACK (device_state_changed), self);
g_signal_handlers_disconnect_by_func (priv->device, G_CALLBACK (device_master_changed), self);
g_signal_handlers_disconnect_by_func (priv->device, G_CALLBACK (device_metered_changed), self);
}
if (priv->pending_activation_id) {
nm_device_remove_pending_action (priv->device, priv->pending_activation_id, TRUE);
g_clear_pointer (&priv->pending_activation_id, g_free);
}
g_clear_object (&priv->device);
}
static void
dispose (GObject *object)
{
NMActiveConnection *self = NM_ACTIVE_CONNECTION (object);
NMActiveConnectionPrivate *priv = NM_ACTIVE_CONNECTION_GET_PRIVATE (self);
_LOGD ("disposing");
if (priv->chain) {
nm_auth_chain_unref (priv->chain);
priv->chain = NULL;
}
g_free (priv->specific_object);
priv->specific_object = NULL;
_set_settings_connection (self, NULL);
g_clear_object (&priv->applied_connection);
_device_cleanup (self);
if (priv->master) {
g_signal_handlers_disconnect_by_func (priv->master,
(GCallback) master_state_cb,
self);
}
g_clear_object (&priv->master);
if (priv->parent)
unwatch_parent (self);
g_clear_object (&priv->subject);
G_OBJECT_CLASS (nm_active_connection_parent_class)->dispose (object);
}
static void
nm_active_connection_class_init (NMActiveConnectionClass *ac_class)
{
GObjectClass *object_class = G_OBJECT_CLASS (ac_class);
NMExportedObjectClass *exported_object_class = NM_EXPORTED_OBJECT_CLASS (ac_class);
g_type_class_add_private (ac_class, sizeof (NMActiveConnectionPrivate));
exported_object_class->export_path = NM_DBUS_PATH "/ActiveConnection/%u";
/* virtual methods */
object_class->get_property = get_property;
object_class->set_property = set_property;
object_class->constructed = constructed;
object_class->dispose = dispose;
/* D-Bus exported properties */
obj_properties[PROP_CONNECTION] =
g_param_spec_string (NM_ACTIVE_CONNECTION_CONNECTION, "", "",
NULL,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_ID] =
g_param_spec_string (NM_ACTIVE_CONNECTION_ID, "", "",
NULL,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_UUID] =
g_param_spec_string (NM_ACTIVE_CONNECTION_UUID, "", "",
NULL,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_TYPE] =
g_param_spec_string (NM_ACTIVE_CONNECTION_TYPE, "", "",
NULL,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_SPECIFIC_OBJECT] =
g_param_spec_string (NM_ACTIVE_CONNECTION_SPECIFIC_OBJECT, "", "",
NULL,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_DEVICES] =
g_param_spec_boxed (NM_ACTIVE_CONNECTION_DEVICES, "", "",
G_TYPE_STRV,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_STATE] =
g_param_spec_uint (NM_ACTIVE_CONNECTION_STATE, "", "",
NM_ACTIVE_CONNECTION_STATE_UNKNOWN,
NM_ACTIVE_CONNECTION_STATE_DEACTIVATING,
NM_ACTIVE_CONNECTION_STATE_UNKNOWN,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_DEFAULT] =
g_param_spec_boolean (NM_ACTIVE_CONNECTION_DEFAULT, "", "",
FALSE,
G_PARAM_READWRITE |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_IP4_CONFIG] =
g_param_spec_string (NM_ACTIVE_CONNECTION_IP4_CONFIG, "", "",
NULL,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_DHCP4_CONFIG] =
g_param_spec_string (NM_ACTIVE_CONNECTION_DHCP4_CONFIG, "", "",
NULL,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_DEFAULT6] =
g_param_spec_boolean (NM_ACTIVE_CONNECTION_DEFAULT6, "", "",
FALSE,
G_PARAM_READWRITE |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_IP6_CONFIG] =
g_param_spec_string (NM_ACTIVE_CONNECTION_IP6_CONFIG, "", "",
NULL,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_DHCP6_CONFIG] =
g_param_spec_string (NM_ACTIVE_CONNECTION_DHCP6_CONFIG, "", "",
NULL,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_VPN] =
g_param_spec_boolean (NM_ACTIVE_CONNECTION_VPN, "", "",
FALSE,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_MASTER] =
g_param_spec_string (NM_ACTIVE_CONNECTION_MASTER, "", "",
NULL,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS);
/* Internal properties */
obj_properties[PROP_INT_SETTINGS_CONNECTION] =
g_param_spec_object (NM_ACTIVE_CONNECTION_INT_SETTINGS_CONNECTION, "", "",
NM_TYPE_SETTINGS_CONNECTION,
G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_INT_DEVICE] =
g_param_spec_object (NM_ACTIVE_CONNECTION_INT_DEVICE, "", "",
NM_TYPE_DEVICE,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_INT_SUBJECT] =
g_param_spec_object (NM_ACTIVE_CONNECTION_INT_SUBJECT, "", "",
NM_TYPE_AUTH_SUBJECT,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_INT_MASTER] =
g_param_spec_object (NM_ACTIVE_CONNECTION_INT_MASTER, "", "",
NM_TYPE_ACTIVE_CONNECTION,
G_PARAM_READWRITE |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_INT_MASTER_READY] =
g_param_spec_boolean (NM_ACTIVE_CONNECTION_INT_MASTER_READY, "", "",
FALSE, G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS);
g_object_class_install_properties (object_class, _PROPERTY_ENUMS_LAST, obj_properties);
signals[DEVICE_CHANGED] =
g_signal_new (NM_ACTIVE_CONNECTION_DEVICE_CHANGED,
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (NMActiveConnectionClass, device_changed),
NULL, NULL, NULL,
G_TYPE_NONE, 2, NM_TYPE_DEVICE, NM_TYPE_DEVICE);
signals[DEVICE_METERED_CHANGED] =
g_signal_new (NM_ACTIVE_CONNECTION_DEVICE_METERED_CHANGED,
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (NMActiveConnectionClass, device_metered_changed),
NULL, NULL, NULL,
G_TYPE_NONE, 1, G_TYPE_UINT);
signals[PARENT_ACTIVE] =
g_signal_new (NM_ACTIVE_CONNECTION_PARENT_ACTIVE,
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (NMActiveConnectionClass, parent_active),
NULL, NULL, NULL,
G_TYPE_NONE, 1, NM_TYPE_ACTIVE_CONNECTION);
nm_exported_object_class_add_interface (NM_EXPORTED_OBJECT_CLASS (ac_class),
NMDBUS_TYPE_ACTIVE_CONNECTION_SKELETON,
NULL);
}
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