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NetworkManager/src/nm-device-olpc-mesh.c
Dan Winship 611df342af core: make nm_device_check_connection_compatible() check interface-name 
If an NMConnection specifies an interface-name, it is only compatible
with a device with the same iface.

https://bugzilla.gnome.org/show_bug.cgi?id=693684
2013-03-13 16:45:19 -04:00

785 lines
23 KiB
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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/* NetworkManager -- Network link manager
*
* Dan Williams <dcbw@redhat.com>
* Sjoerd Simons <sjoerd.simons@collabora.co.uk>
* Daniel Drake <dsd@laptop.org>
*
* 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.
*
* (C) Copyright 2005 - 2011 Red Hat, Inc.
* (C) Copyright 2008 Collabora Ltd.
* (C) Copyright 2009 One Laptop per Child
*/
#include "config.h"
#include <glib.h>
#include <glib/gi18n.h>
#include <dbus/dbus.h>
#include <netinet/in.h>
#include <string.h>
#include <net/ethernet.h>
#include <netinet/ether.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <signal.h>
#include <unistd.h>
#include <linux/if.h>
#include <sys/ioctl.h>
#include <errno.h>
#include "nm-device.h"
#include "nm-device-wifi.h"
#include "nm-device-olpc-mesh.h"
#include "nm-device-private.h"
#include "nm-utils.h"
#include "nm-logging.h"
#include "NetworkManagerUtils.h"
#include "nm-activation-request.h"
#include "nm-properties-changed-signal.h"
#include "nm-setting-connection.h"
#include "nm-setting-olpc-mesh.h"
#include "nm-system.h"
#include "nm-manager.h"
#include "nm-enum-types.h"
#include "wifi-utils.h"
#if HAVE_WEXT
#include "wifi-utils-wext.h"
#endif
/* This is a bug; but we can't really change API now... */
#include "NetworkManagerVPN.h"
#include "nm-device-olpc-mesh-glue.h"
G_DEFINE_TYPE (NMDeviceOlpcMesh, nm_device_olpc_mesh, NM_TYPE_DEVICE)
#define NM_DEVICE_OLPC_MESH_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), NM_TYPE_DEVICE_OLPC_MESH, NMDeviceOlpcMeshPrivate))
enum {
PROP_0,
PROP_HW_ADDRESS,
PROP_COMPANION,
PROP_ACTIVE_CHANNEL,
LAST_PROP
};
enum {
PROPERTIES_CHANGED,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL] = { 0 };
#define NM_OLPC_MESH_ERROR (nm_olpc_mesh_error_quark ())
struct _NMDeviceOlpcMeshPrivate
{
gboolean dispose_has_run;
guint8 hw_addr[ETH_ALEN];
GByteArray * ssid;
WifiData * wifi_data;
gboolean up;
NMDevice * companion;
gboolean stage1_waiting;
guint device_added_id;
guint device_removed_id;
guint cmp_state_changed_id;
guint cmp_scanning_id;
guint cmp_scanning_allowed_id;
guint cmp_autoconnect_allowed_id;
};
static void state_changed (NMDevice *device, NMDeviceState new_state,
NMDeviceState old_state, NMDeviceStateReason reason);
static GQuark
nm_olpc_mesh_error_quark (void)
{
static GQuark quark = 0;
if (!quark)
quark = g_quark_from_static_string ("nm-mesh-error");
return quark;
}
static guint32
get_generic_capabilities (NMDevice *dev)
{
return NM_DEVICE_CAP_NM_SUPPORTED;
}
static void
nm_device_olpc_mesh_init (NMDeviceOlpcMesh * self)
{
NMDeviceOlpcMeshPrivate *priv = NM_DEVICE_OLPC_MESH_GET_PRIVATE (self);
priv->dispose_has_run = FALSE;
priv->companion = NULL;
priv->stage1_waiting = FALSE;
memset (&priv->hw_addr, 0, sizeof (priv->hw_addr));
}
static GObject*
constructor (GType type,
guint n_construct_params,
GObjectConstructParam *construct_params)
{
GObject *object;
GObjectClass *klass;
NMDeviceOlpcMesh *self;
NMDeviceOlpcMeshPrivate *priv;
klass = G_OBJECT_CLASS (nm_device_olpc_mesh_parent_class);
object = klass->constructor (type, n_construct_params, construct_params);
if (!object)
return NULL;
self = NM_DEVICE_OLPC_MESH (object);
priv = NM_DEVICE_OLPC_MESH_GET_PRIVATE (self);
nm_log_dbg (LOGD_HW | LOGD_OLPC_MESH, "(%s): kernel ifindex %d",
nm_device_get_iface (NM_DEVICE (self)),
nm_device_get_ifindex (NM_DEVICE (self)));
/*
* The kernel driver now uses nl80211, but we force use of WEXT because
* the cfg80211 interactions are not quite ready to support access to
* mesh control through nl80211 just yet.
*/
#if HAVE_WEXT
priv->wifi_data = wifi_wext_init (nm_device_get_iface (NM_DEVICE (self)),
nm_device_get_ifindex (NM_DEVICE (self)),
FALSE);
#endif
if (priv->wifi_data == NULL) {
nm_log_warn (LOGD_HW | LOGD_OLPC_MESH, "(%s): failed to initialize WiFi driver",
nm_device_get_iface (NM_DEVICE (self)));
g_object_unref (object);
return NULL;
}
/* shorter timeout for mesh connectivity */
nm_device_set_dhcp_timeout (NM_DEVICE (self), 20);
return object;
}
static gboolean
is_up (NMDevice *device)
{
NMDeviceOlpcMesh *self = NM_DEVICE_OLPC_MESH (device);
NMDeviceOlpcMeshPrivate *priv = NM_DEVICE_OLPC_MESH_GET_PRIVATE (self);
return priv->up;
}
static gboolean
bring_up (NMDevice *dev)
{
NMDeviceOlpcMesh *self = NM_DEVICE_OLPC_MESH (dev);
NMDeviceOlpcMeshPrivate *priv = NM_DEVICE_OLPC_MESH_GET_PRIVATE (self);
priv->up = TRUE;
return TRUE;
}
static void
device_cleanup (NMDeviceOlpcMesh *self)
{
NMDeviceOlpcMeshPrivate *priv = NM_DEVICE_OLPC_MESH_GET_PRIVATE (self);
if (priv->ssid) {
g_byte_array_free (priv->ssid, TRUE);
priv->ssid = NULL;
}
priv->up = FALSE;
}
static void
take_down (NMDevice *dev)
{
device_cleanup (NM_DEVICE_OLPC_MESH (dev));
}
static gboolean
check_connection_compatible (NMDevice *device,
NMConnection *connection,
GError **error)
{
NMSettingConnection *s_con;
NMSettingOlpcMesh *s_mesh;
if (!NM_DEVICE_CLASS (nm_device_olpc_mesh_parent_class)->check_connection_compatible (device, connection, error))
return FALSE;
s_con = nm_connection_get_setting_connection (connection);
g_assert (s_con);
if (strcmp (nm_setting_connection_get_connection_type (s_con), NM_SETTING_OLPC_MESH_SETTING_NAME)) {
g_set_error (error,
NM_OLPC_MESH_ERROR, NM_OLPC_MESH_ERROR_CONNECTION_NOT_MESH,
"The connection was not a Mesh connection.");
return FALSE;
}
s_mesh = nm_connection_get_setting_olpc_mesh (connection);
if (!s_mesh) {
g_set_error (error,
NM_OLPC_MESH_ERROR, NM_OLPC_MESH_ERROR_CONNECTION_INVALID,
"The connection was not a valid Mesh connection.");
return FALSE;
}
return TRUE;
}
static gboolean
can_auto_connect (NMDevice *device,
NMConnection *connection,
char **specific_object)
{
return FALSE;
}
#define DEFAULT_SSID "olpc-mesh"
static gboolean
complete_connection (NMDevice *device,
NMConnection *connection,
const char *specific_object,
const GSList *existing_connections,
GError **error)
{
NMSettingOlpcMesh *s_mesh;
GByteArray *tmp;
s_mesh = nm_connection_get_setting_olpc_mesh (connection);
if (!s_mesh) {
s_mesh = (NMSettingOlpcMesh *) nm_setting_olpc_mesh_new ();
nm_connection_add_setting (connection, NM_SETTING (s_mesh));
}
if (!nm_setting_olpc_mesh_get_ssid (s_mesh)) {
tmp = g_byte_array_sized_new (strlen (DEFAULT_SSID));
g_byte_array_append (tmp, (const guint8 *) DEFAULT_SSID, strlen (DEFAULT_SSID));
g_object_set (G_OBJECT (s_mesh), NM_SETTING_OLPC_MESH_SSID, tmp, NULL);
g_byte_array_free (tmp, TRUE);
}
if (!nm_setting_olpc_mesh_get_dhcp_anycast_address (s_mesh)) {
const guint8 anycast[ETH_ALEN] = { 0xC0, 0x27, 0xC0, 0x27, 0xC0, 0x27 };
tmp = g_byte_array_sized_new (ETH_ALEN);
g_byte_array_append (tmp, anycast, sizeof (anycast));
g_object_set (G_OBJECT (s_mesh), NM_SETTING_OLPC_MESH_DHCP_ANYCAST_ADDRESS, tmp, NULL);
g_byte_array_free (tmp, TRUE);
}
nm_utils_complete_generic (connection,
NM_SETTING_OLPC_MESH_SETTING_NAME,
existing_connections,
_("Mesh %d"),
NULL,
FALSE); /* No IPv6 by default */
return TRUE;
}
/****************************************************************************/
static void
update_hw_address (NMDevice *dev)
{
NMDeviceOlpcMesh *self = NM_DEVICE_OLPC_MESH (dev);
NMDeviceOlpcMeshPrivate *priv = NM_DEVICE_OLPC_MESH_GET_PRIVATE (self);
gsize addrlen;
gboolean changed = FALSE;
addrlen = nm_device_read_hwaddr (dev, priv->hw_addr, sizeof (priv->hw_addr), &changed);
if (addrlen) {
g_return_if_fail (addrlen == ETH_ALEN);
if (changed)
g_object_notify (G_OBJECT (dev), NM_DEVICE_OLPC_MESH_HW_ADDRESS);
}
}
static const guint8 *
get_hw_address (NMDevice *device, guint *out_len)
{
NMDeviceOlpcMeshPrivate *priv = NM_DEVICE_OLPC_MESH_GET_PRIVATE (device);
*out_len = sizeof (priv->hw_addr);
return priv->hw_addr;
}
static NMActStageReturn
act_stage1_prepare (NMDevice *dev, NMDeviceStateReason *reason)
{
NMDeviceOlpcMeshPrivate *priv = NM_DEVICE_OLPC_MESH_GET_PRIVATE (dev);
gboolean scanning;
/* disconnect companion device, if it is connected */
if (nm_device_get_act_request (NM_DEVICE (priv->companion))) {
nm_log_info (LOGD_OLPC_MESH, "(%s): disconnecting companion device %s",
nm_device_get_iface (dev),
nm_device_get_iface (priv->companion));
/* FIXME: VPN stuff here is a bug; but we can't really change API now... */
nm_device_state_changed (NM_DEVICE (priv->companion),
NM_DEVICE_STATE_DISCONNECTED,
NM_VPN_CONNECTION_STATE_REASON_USER_DISCONNECTED);
nm_log_info (LOGD_OLPC_MESH, "(%s): companion %s disconnected",
nm_device_get_iface (dev),
nm_device_get_iface (priv->companion));
}
/* wait with continuing configuration untill the companion device is done scanning */
g_object_get (priv->companion, "scanning", &scanning, NULL);
if (scanning) {
priv->stage1_waiting = TRUE;
return NM_ACT_STAGE_RETURN_POSTPONE;
}
return NM_ACT_STAGE_RETURN_SUCCESS;
}
static void
_mesh_set_channel (NMDeviceOlpcMesh *self, guint32 channel)
{
NMDeviceOlpcMeshPrivate *priv = NM_DEVICE_OLPC_MESH_GET_PRIVATE (self);
if (wifi_utils_get_mesh_channel (priv->wifi_data) != channel) {
if (wifi_utils_set_mesh_channel (priv->wifi_data, channel))
g_object_notify (G_OBJECT (self), NM_DEVICE_OLPC_MESH_ACTIVE_CHANNEL);
}
}
static NMActStageReturn
act_stage2_config (NMDevice *dev, NMDeviceStateReason *reason)
{
NMDeviceOlpcMesh *self = NM_DEVICE_OLPC_MESH (dev);
NMDeviceOlpcMeshPrivate *priv = NM_DEVICE_OLPC_MESH_GET_PRIVATE (self);
NMConnection *connection;
NMSettingOlpcMesh *s_mesh;
guint32 channel;
const GByteArray *anycast_addr_array;
guint8 *anycast_addr = NULL;
connection = nm_device_get_connection (dev);
g_assert (connection);
s_mesh = nm_connection_get_setting_olpc_mesh (connection);
g_assert (s_mesh);
channel = nm_setting_olpc_mesh_get_channel (s_mesh);
if (channel != 0)
_mesh_set_channel (self, channel);
wifi_utils_set_mesh_ssid (priv->wifi_data, nm_setting_olpc_mesh_get_ssid (s_mesh));
anycast_addr_array = nm_setting_olpc_mesh_get_dhcp_anycast_address (s_mesh);
if (anycast_addr_array)
anycast_addr = anycast_addr_array->data;
nm_device_set_dhcp_anycast_address (dev, anycast_addr);
return NM_ACT_STAGE_RETURN_SUCCESS;
}
static void
companion_cleanup (NMDeviceOlpcMesh *self)
{
NMDeviceOlpcMeshPrivate *priv = NM_DEVICE_OLPC_MESH_GET_PRIVATE (self);
if (priv->companion == NULL)
return;
if (priv->cmp_state_changed_id) {
g_signal_handler_disconnect (priv->companion, priv->cmp_state_changed_id);
priv->cmp_state_changed_id = 0;
}
if (priv->cmp_scanning_id) {
g_signal_handler_disconnect (priv->companion, priv->cmp_scanning_id);
priv->cmp_scanning_id = 0;
}
if (priv->cmp_scanning_allowed_id) {
g_signal_handler_disconnect (priv->companion, priv->cmp_scanning_allowed_id);
priv->cmp_scanning_allowed_id = 0;
}
if (priv->cmp_autoconnect_allowed_id) {
g_signal_handler_disconnect (priv->companion, priv->cmp_autoconnect_allowed_id);
priv->cmp_autoconnect_allowed_id = 0;
}
priv->companion = NULL;
g_object_notify (G_OBJECT (self), NM_DEVICE_OLPC_MESH_COMPANION);
}
static void
dispose (GObject *object)
{
NMDeviceOlpcMesh *self = NM_DEVICE_OLPC_MESH (object);
NMDeviceOlpcMeshPrivate *priv = NM_DEVICE_OLPC_MESH_GET_PRIVATE (self);
NMManager *manager;
if (priv->dispose_has_run) {
G_OBJECT_CLASS (nm_device_olpc_mesh_parent_class)->dispose (object);
return;
}
priv->dispose_has_run = TRUE;
if (priv->wifi_data)
wifi_utils_deinit (priv->wifi_data);
device_cleanup (self);
companion_cleanup (self);
manager = nm_manager_get ();
if (priv->device_added_id)
g_signal_handler_disconnect (manager, priv->device_added_id);
if (priv->device_removed_id)
g_signal_handler_disconnect (manager, priv->device_removed_id);
g_object_unref (manager);
G_OBJECT_CLASS (nm_device_olpc_mesh_parent_class)->dispose (object);
}
static void
get_property (GObject *object, guint prop_id,
GValue *value, GParamSpec *pspec)
{
NMDeviceOlpcMesh *device = NM_DEVICE_OLPC_MESH (object);
NMDeviceOlpcMeshPrivate *priv = NM_DEVICE_OLPC_MESH_GET_PRIVATE (device);
switch (prop_id) {
case PROP_HW_ADDRESS:
g_value_take_string (value, nm_utils_hwaddr_ntoa (priv->hw_addr, ARPHRD_ETHER));
break;
case PROP_COMPANION:
if (priv->companion)
g_value_set_boxed (value, nm_device_get_path (priv->companion));
else
g_value_set_boxed (value, "/");
break;
case PROP_ACTIVE_CHANNEL:
g_value_set_uint (value, wifi_utils_get_mesh_channel (priv->wifi_data));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
set_property (GObject *object, guint prop_id,
const GValue *value, GParamSpec *pspec)
{
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
nm_device_olpc_mesh_class_init (NMDeviceOlpcMeshClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
NMDeviceClass *parent_class = NM_DEVICE_CLASS (klass);
g_type_class_add_private (object_class, sizeof (NMDeviceOlpcMeshPrivate));
object_class->constructor = constructor;
object_class->get_property = get_property;
object_class->set_property = set_property;
object_class->dispose = dispose;
parent_class->get_type_capabilities = NULL;
parent_class->get_generic_capabilities = get_generic_capabilities;
parent_class->is_up = is_up;
parent_class->bring_up = bring_up;
parent_class->take_down = take_down;
parent_class->update_hw_address = update_hw_address;
parent_class->get_hw_address = get_hw_address;
parent_class->check_connection_compatible = check_connection_compatible;
parent_class->can_auto_connect = can_auto_connect;
parent_class->complete_connection = complete_connection;
parent_class->act_stage1_prepare = act_stage1_prepare;
parent_class->act_stage2_config = act_stage2_config;
parent_class->state_changed = state_changed;
/* Properties */
g_object_class_install_property
(object_class, PROP_HW_ADDRESS,
g_param_spec_string (NM_DEVICE_OLPC_MESH_HW_ADDRESS,
"MAC Address",
"Hardware MAC address",
NULL,
G_PARAM_READABLE));
g_object_class_install_property
(object_class, PROP_COMPANION,
g_param_spec_boxed (NM_DEVICE_OLPC_MESH_COMPANION,
"Companion device",
"Companion device object path",
DBUS_TYPE_G_OBJECT_PATH,
G_PARAM_READABLE));
g_object_class_install_property
(object_class, PROP_ACTIVE_CHANNEL,
g_param_spec_uint (NM_DEVICE_OLPC_MESH_ACTIVE_CHANNEL,
"Active channel",
"Active channel",
0, G_MAXUINT32, 0,
G_PARAM_READABLE));
signals[PROPERTIES_CHANGED] =
nm_properties_changed_signal_new (object_class,
G_STRUCT_OFFSET (NMDeviceOlpcMeshClass, properties_changed));
dbus_g_object_type_install_info (G_TYPE_FROM_CLASS (klass), &dbus_glib_nm_device_olpc_mesh_object_info);
dbus_g_error_domain_register (NM_OLPC_MESH_ERROR, NULL,
NM_TYPE_OLPC_MESH_ERROR);
}
static void
companion_notify_cb (NMDeviceWifi *companion, GParamSpec *pspec, gpointer user_data)
{
NMDeviceOlpcMesh *self = NM_DEVICE_OLPC_MESH (user_data);
NMDeviceOlpcMeshPrivate *priv = NM_DEVICE_OLPC_MESH_GET_PRIVATE (self);
gboolean scanning;
if (!priv->stage1_waiting)
return;
g_object_get (companion, "scanning", &scanning, NULL);
if (!scanning) {
priv->stage1_waiting = FALSE;
nm_device_activate_schedule_stage2_device_config (NM_DEVICE (self));
}
}
/* disconnect from mesh if someone starts using the companion */
static void
companion_state_changed_cb (NMDeviceWifi *companion,
NMDeviceState state,
NMDeviceState old_state,
NMDeviceStateReason reason,
gpointer user_data)
{
NMDeviceOlpcMesh *self = NM_DEVICE_OLPC_MESH (user_data);
NMDeviceState self_state = nm_device_get_state (NM_DEVICE (self));
if ( self_state < NM_DEVICE_STATE_PREPARE
|| self_state > NM_DEVICE_STATE_ACTIVATED
|| state < NM_DEVICE_STATE_PREPARE
|| state > NM_DEVICE_STATE_ACTIVATED)
return;
nm_log_dbg (LOGD_OLPC_MESH, "(%s): disconnecting mesh due to companion connectivity",
nm_device_get_iface (NM_DEVICE (self)));
/* FIXME: VPN stuff here is a bug; but we can't really change API now... */
nm_device_state_changed (NM_DEVICE (self),
NM_DEVICE_STATE_DISCONNECTED,
NM_VPN_CONNECTION_STATE_REASON_USER_DISCONNECTED);
}
static gboolean
companion_scan_allowed_cb (NMDeviceWifi *companion, gpointer user_data)
{
NMDeviceOlpcMesh *self = NM_DEVICE_OLPC_MESH (user_data);
NMDeviceState state = nm_device_get_state (NM_DEVICE (self));
/* Don't allow the companion to scan while configuring the mesh interface */
return (state < NM_DEVICE_STATE_PREPARE) || (state > NM_DEVICE_STATE_IP_CONFIG);
}
static gboolean
companion_autoconnect_allowed_cb (NMDeviceWifi *companion, gpointer user_data)
{
NMDeviceOlpcMesh *self = NM_DEVICE_OLPC_MESH (user_data);
NMDeviceState state = nm_device_get_state (NM_DEVICE (self));
/* Don't allow the companion to autoconnect while a mesh connection is
* active */
return (state < NM_DEVICE_STATE_PREPARE) || (state > NM_DEVICE_STATE_ACTIVATED);
}
static gboolean
is_companion (NMDeviceOlpcMesh *self, NMDevice *other)
{
NMDeviceOlpcMeshPrivate *priv = NM_DEVICE_OLPC_MESH_GET_PRIVATE (self);
const guint8 *their_addr;
guint their_addr_len = 0;
NMManager *manager;
if (!NM_IS_DEVICE_WIFI (other))
return FALSE;
their_addr = nm_device_get_hw_address (other, &their_addr_len);
if ( (their_addr_len != ETH_ALEN)
|| (memcmp (priv->hw_addr, their_addr, ETH_ALEN) != 0))
return FALSE;
priv->companion = other;
/* When we've found the companion, stop listening for other devices */
manager = nm_manager_get ();
if (priv->device_added_id) {
g_signal_handler_disconnect (manager, priv->device_added_id);
priv->device_added_id = 0;
}
g_object_unref (manager);
nm_device_state_changed (NM_DEVICE (self),
NM_DEVICE_STATE_DISCONNECTED,
NM_DEVICE_STATE_REASON_NONE);
nm_log_info (LOGD_OLPC_MESH, "(%s): found companion WiFi device %s",
nm_device_get_iface (NM_DEVICE (self)),
nm_device_get_iface (other));
priv->cmp_state_changed_id = g_signal_connect (G_OBJECT (other), "state-changed",
G_CALLBACK (companion_state_changed_cb), self);
priv->cmp_scanning_id = g_signal_connect (G_OBJECT (other), "notify::scanning",
G_CALLBACK (companion_notify_cb), self);
priv->cmp_scanning_allowed_id = g_signal_connect (G_OBJECT (other), "scanning-allowed",
G_CALLBACK (companion_scan_allowed_cb), self);
priv->cmp_autoconnect_allowed_id = g_signal_connect (G_OBJECT (other), "autoconnect-allowed",
G_CALLBACK (companion_autoconnect_allowed_cb), self);
g_object_notify (G_OBJECT (self), NM_DEVICE_OLPC_MESH_COMPANION);
return TRUE;
}
static void
device_added_cb (NMManager *manager, NMDevice *other, gpointer user_data)
{
NMDeviceOlpcMesh *self = NM_DEVICE_OLPC_MESH (user_data);
is_companion (self, other);
}
static void
device_removed_cb (NMManager *manager, NMDevice *other, gpointer user_data)
{
NMDeviceOlpcMesh *self = NM_DEVICE_OLPC_MESH (user_data);
if (other == NM_DEVICE_OLPC_MESH_GET_PRIVATE (self)->companion)
companion_cleanup (self);
}
static gboolean
check_companion_cb (gpointer user_data)
{
NMDeviceOlpcMesh *self = NM_DEVICE_OLPC_MESH (user_data);
NMDeviceOlpcMeshPrivate *priv = NM_DEVICE_OLPC_MESH_GET_PRIVATE (self);
NMManager *manager;
GSList *list;
if (priv->companion != NULL) {
nm_device_state_changed (NM_DEVICE (user_data),
NM_DEVICE_STATE_DISCONNECTED,
NM_DEVICE_STATE_REASON_NONE);
return FALSE;
}
if (priv->device_added_id != 0)
return FALSE;
manager = nm_manager_get ();
priv->device_added_id = g_signal_connect (manager, "device-added",
G_CALLBACK (device_added_cb), self);
if (!priv->device_removed_id) {
priv->device_removed_id = g_signal_connect (manager, "device-removed",
G_CALLBACK (device_removed_cb), self);
}
/* Try to find the companion if it's already known to the NMManager */
for (list = nm_manager_get_devices (manager); list ; list = g_slist_next (list)) {
if (is_companion (self, NM_DEVICE (list->data)))
break;
}
g_object_unref (manager);
return FALSE;
}
static void
state_changed (NMDevice *device, NMDeviceState new_state,
NMDeviceState old_state, NMDeviceStateReason reason)
{
NMDeviceOlpcMesh *self = NM_DEVICE_OLPC_MESH (device);
switch (new_state) {
case NM_DEVICE_STATE_UNMANAGED:
break;
case NM_DEVICE_STATE_UNAVAILABLE:
/* If transitioning to UNAVAILABLE and the companion device is known then
* transition to DISCONNECTED otherwise wait for our companion.
*/
g_idle_add (check_companion_cb, self);
break;
case NM_DEVICE_STATE_ACTIVATED:
break;
case NM_DEVICE_STATE_FAILED:
break;
case NM_DEVICE_STATE_DISCONNECTED:
break;
default:
break;
}
}
NMDevice *
nm_device_olpc_mesh_new (const char *udi,
const char *iface,
const char *driver)
{
g_return_val_if_fail (udi != NULL, NULL);
g_return_val_if_fail (iface != NULL, NULL);
g_return_val_if_fail (driver != NULL, NULL);
return (NMDevice *) g_object_new (NM_TYPE_DEVICE_OLPC_MESH,
NM_DEVICE_UDI, udi,
NM_DEVICE_IFACE, iface,
NM_DEVICE_DRIVER, driver,
NM_DEVICE_TYPE_DESC, "802.11 OLPC Mesh",
NM_DEVICE_DEVICE_TYPE, NM_DEVICE_TYPE_OLPC_MESH,
NULL);
}
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