1 /* GIO - GLib Input, Output and Streaming Library
3 * Copyright 2011 Red Hat, Inc.
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General
16 * Public License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
18 * Boston, MA 02111-1307, USA.
23 #include "gnetworkmonitorbase.h"
24 #include "ginetaddress.h"
25 #include "ginetaddressmask.h"
26 #include "ginetsocketaddress.h"
27 #include "ginitable.h"
29 #include "giomodule-priv.h"
30 #include "gnetworkmonitor.h"
31 #include "gsocketaddressenumerator.h"
32 #include "gsocketconnectable.h"
36 static void g_network_monitor_base_iface_init (GNetworkMonitorInterface
*iface
);
37 static void g_network_monitor_base_initable_iface_init (GInitableIface
*iface
);
43 PROP_NETWORK_AVAILABLE
46 struct _GNetworkMonitorBasePrivate
49 gboolean have_ipv4_default_route
;
50 gboolean have_ipv6_default_route
;
51 gboolean is_available
;
53 GMainContext
*context
;
54 GSource
*network_changed_source
;
55 gboolean initializing
;
58 static guint network_changed_signal
= 0;
60 static void queue_network_changed (GNetworkMonitorBase
*monitor
);
62 G_DEFINE_TYPE_WITH_CODE (GNetworkMonitorBase
, g_network_monitor_base
, G_TYPE_OBJECT
,
63 G_ADD_PRIVATE (GNetworkMonitorBase
)
64 G_IMPLEMENT_INTERFACE (G_TYPE_INITABLE
,
65 g_network_monitor_base_initable_iface_init
)
66 G_IMPLEMENT_INTERFACE (G_TYPE_NETWORK_MONITOR
,
67 g_network_monitor_base_iface_init
)
68 _g_io_modules_ensure_extension_points_registered ();
69 g_io_extension_point_implement (G_NETWORK_MONITOR_EXTENSION_POINT_NAME
,
75 g_network_monitor_base_init (GNetworkMonitorBase
*monitor
)
77 monitor
->priv
= g_network_monitor_base_get_instance_private (monitor
);
78 monitor
->priv
->networks
= g_ptr_array_new_with_free_func (g_object_unref
);
79 monitor
->priv
->context
= g_main_context_get_thread_default ();
80 if (monitor
->priv
->context
)
81 g_main_context_ref (monitor
->priv
->context
);
83 monitor
->priv
->initializing
= TRUE
;
84 queue_network_changed (monitor
);
88 g_network_monitor_base_constructed (GObject
*object
)
90 GNetworkMonitorBase
*monitor
= G_NETWORK_MONITOR_BASE (object
);
92 if (G_OBJECT_TYPE (monitor
) == G_TYPE_NETWORK_MONITOR_BASE
)
94 GInetAddressMask
*mask
;
96 /* We're the dumb base class, not a smarter subclass. So just
97 * assume that the network is available.
99 mask
= g_inet_address_mask_new_from_string ("0.0.0.0/0", NULL
);
100 g_network_monitor_base_add_network (monitor
, mask
);
101 g_object_unref (mask
);
103 mask
= g_inet_address_mask_new_from_string ("::/0", NULL
);
104 g_network_monitor_base_add_network (monitor
, mask
);
105 g_object_unref (mask
);
110 g_network_monitor_base_get_property (GObject
*object
,
115 GNetworkMonitorBase
*monitor
= G_NETWORK_MONITOR_BASE (object
);
119 case PROP_NETWORK_AVAILABLE
:
120 g_value_set_boolean (value
, monitor
->priv
->is_available
);
124 G_OBJECT_WARN_INVALID_PROPERTY_ID (object
, prop_id
, pspec
);
130 g_network_monitor_base_finalize (GObject
*object
)
132 GNetworkMonitorBase
*monitor
= G_NETWORK_MONITOR_BASE (object
);
134 g_ptr_array_free (monitor
->priv
->networks
, TRUE
);
135 if (monitor
->priv
->network_changed_source
)
137 g_source_destroy (monitor
->priv
->network_changed_source
);
138 g_source_unref (monitor
->priv
->network_changed_source
);
140 if (monitor
->priv
->context
)
141 g_main_context_unref (monitor
->priv
->context
);
143 G_OBJECT_CLASS (g_network_monitor_base_parent_class
)->finalize (object
);
147 g_network_monitor_base_class_init (GNetworkMonitorBaseClass
*monitor_class
)
149 GObjectClass
*gobject_class
= G_OBJECT_CLASS (monitor_class
);
151 gobject_class
->constructed
= g_network_monitor_base_constructed
;
152 gobject_class
->get_property
= g_network_monitor_base_get_property
;
153 gobject_class
->finalize
= g_network_monitor_base_finalize
;
155 g_object_class_override_property (gobject_class
, PROP_NETWORK_AVAILABLE
, "network-available");
159 g_network_monitor_base_can_reach_sockaddr (GNetworkMonitorBase
*base
,
160 GSocketAddress
*sockaddr
)
165 if (!G_IS_INET_SOCKET_ADDRESS (sockaddr
))
168 iaddr
= g_inet_socket_address_get_address (G_INET_SOCKET_ADDRESS (sockaddr
));
169 for (i
= 0; i
< base
->priv
->networks
->len
; i
++)
171 if (g_inet_address_mask_matches (base
->priv
->networks
->pdata
[i
], iaddr
))
179 g_network_monitor_base_can_reach (GNetworkMonitor
*monitor
,
180 GSocketConnectable
*connectable
,
181 GCancellable
*cancellable
,
184 GNetworkMonitorBase
*base
= G_NETWORK_MONITOR_BASE (monitor
);
185 GSocketAddressEnumerator
*enumerator
;
186 GSocketAddress
*addr
;
188 if (base
->priv
->networks
->len
== 0)
190 g_set_error_literal (error
, G_IO_ERROR
, G_IO_ERROR_NETWORK_UNREACHABLE
,
191 _("Network unreachable"));
195 enumerator
= g_socket_connectable_proxy_enumerate (connectable
);
196 addr
= g_socket_address_enumerator_next (enumerator
, cancellable
, error
);
199 /* Either the user cancelled, or DNS resolution failed */
200 g_object_unref (enumerator
);
204 if (base
->priv
->have_ipv4_default_route
&&
205 base
->priv
->have_ipv6_default_route
)
207 g_object_unref (enumerator
);
208 g_object_unref (addr
);
214 if (g_network_monitor_base_can_reach_sockaddr (base
, addr
))
216 g_object_unref (addr
);
217 g_object_unref (enumerator
);
221 g_object_unref (addr
);
222 addr
= g_socket_address_enumerator_next (enumerator
, cancellable
, error
);
224 g_object_unref (enumerator
);
226 if (error
&& !*error
)
228 g_set_error_literal (error
, G_IO_ERROR
, G_IO_ERROR_HOST_UNREACHABLE
,
229 _("Host unreachable"));
235 can_reach_async_got_address (GObject
*object
,
236 GAsyncResult
*result
,
239 GSocketAddressEnumerator
*enumerator
= G_SOCKET_ADDRESS_ENUMERATOR (object
);
240 GTask
*task
= user_data
;
241 GNetworkMonitorBase
*base
= g_task_get_source_object (task
);
242 GSocketAddress
*addr
;
243 GError
*error
= NULL
;
245 addr
= g_socket_address_enumerator_next_finish (enumerator
, result
, &error
);
250 /* Either the user cancelled, or DNS resolution failed */
251 g_task_return_error (task
, error
);
252 g_object_unref (task
);
257 /* Resolved all addresses, none matched */
258 g_task_return_new_error (task
, G_IO_ERROR
, G_IO_ERROR_HOST_UNREACHABLE
,
259 _("Host unreachable"));
260 g_object_unref (task
);
265 if (g_network_monitor_base_can_reach_sockaddr (base
, addr
))
267 g_object_unref (addr
);
268 g_task_return_boolean (task
, TRUE
);
269 g_object_unref (task
);
272 g_object_unref (addr
);
274 g_socket_address_enumerator_next_async (enumerator
,
275 g_task_get_cancellable (task
),
276 can_reach_async_got_address
, task
);
280 g_network_monitor_base_can_reach_async (GNetworkMonitor
*monitor
,
281 GSocketConnectable
*connectable
,
282 GCancellable
*cancellable
,
283 GAsyncReadyCallback callback
,
287 GSocketAddressEnumerator
*enumerator
;
289 task
= g_task_new (monitor
, cancellable
, callback
, user_data
);
291 if (G_NETWORK_MONITOR_BASE (monitor
)->priv
->networks
->len
== 0)
293 g_task_return_new_error (task
, G_IO_ERROR
, G_IO_ERROR_NETWORK_UNREACHABLE
,
294 _("Network unreachable"));
295 g_object_unref (task
);
299 enumerator
= g_socket_connectable_proxy_enumerate (connectable
);
300 g_socket_address_enumerator_next_async (enumerator
, cancellable
,
301 can_reach_async_got_address
, task
);
302 g_object_unref (enumerator
);
306 g_network_monitor_base_can_reach_finish (GNetworkMonitor
*monitor
,
307 GAsyncResult
*result
,
310 g_return_val_if_fail (g_task_is_valid (result
, monitor
), FALSE
);
312 return g_task_propagate_boolean (G_TASK (result
), error
);
316 g_network_monitor_base_iface_init (GNetworkMonitorInterface
*monitor_iface
)
318 monitor_iface
->can_reach
= g_network_monitor_base_can_reach
;
319 monitor_iface
->can_reach_async
= g_network_monitor_base_can_reach_async
;
320 monitor_iface
->can_reach_finish
= g_network_monitor_base_can_reach_finish
;
322 network_changed_signal
= g_signal_lookup ("network-changed", G_TYPE_NETWORK_MONITOR
);
326 g_network_monitor_base_initable_init (GInitable
*initable
,
327 GCancellable
*cancellable
,
334 g_network_monitor_base_initable_iface_init (GInitableIface
*iface
)
336 iface
->init
= g_network_monitor_base_initable_init
;
340 emit_network_changed (gpointer user_data
)
342 GNetworkMonitorBase
*monitor
= user_data
;
343 gboolean is_available
;
345 g_object_ref (monitor
);
347 if (monitor
->priv
->initializing
)
348 monitor
->priv
->initializing
= FALSE
;
351 is_available
= (monitor
->priv
->have_ipv4_default_route
||
352 monitor
->priv
->have_ipv6_default_route
);
353 if (monitor
->priv
->is_available
!= is_available
)
355 monitor
->priv
->is_available
= is_available
;
356 g_object_notify (G_OBJECT (monitor
), "network-available");
359 g_signal_emit (monitor
, network_changed_signal
, 0, is_available
);
362 g_source_unref (monitor
->priv
->network_changed_source
);
363 monitor
->priv
->network_changed_source
= NULL
;
365 g_object_unref (monitor
);
370 queue_network_changed (GNetworkMonitorBase
*monitor
)
372 if (!monitor
->priv
->network_changed_source
)
376 source
= g_idle_source_new ();
377 /* Use G_PRIORITY_HIGH_IDLE priority so that multiple
378 * network-change-related notifications coming in at
379 * G_PRIORITY_DEFAULT will get coalesced into one signal
382 g_source_set_priority (source
, G_PRIORITY_HIGH_IDLE
);
383 g_source_set_callback (source
, emit_network_changed
, monitor
, NULL
);
384 g_source_attach (source
, monitor
->priv
->context
);
385 monitor
->priv
->network_changed_source
= source
;
388 /* Normally we wait to update is_available until we emit the signal,
389 * to keep things consistent. But when we're first creating the
390 * object, we want it to be correct right away.
392 if (monitor
->priv
->initializing
)
394 monitor
->priv
->is_available
= (monitor
->priv
->have_ipv4_default_route
||
395 monitor
->priv
->have_ipv6_default_route
);
400 * g_network_monitor_base_add_network:
401 * @monitor: the #GNetworkMonitorBase
402 * @network: a #GInetAddressMask
404 * Adds @network to @monitor's list of available networks.
409 g_network_monitor_base_add_network (GNetworkMonitorBase
*monitor
,
410 GInetAddressMask
*network
)
414 for (i
= 0; i
< monitor
->priv
->networks
->len
; i
++)
416 if (g_inet_address_mask_equal (monitor
->priv
->networks
->pdata
[i
], network
))
420 g_ptr_array_add (monitor
->priv
->networks
, g_object_ref (network
));
421 if (g_inet_address_mask_get_length (network
) == 0)
423 switch (g_inet_address_mask_get_family (network
))
425 case G_SOCKET_FAMILY_IPV4
:
426 monitor
->priv
->have_ipv4_default_route
= TRUE
;
428 case G_SOCKET_FAMILY_IPV6
:
429 monitor
->priv
->have_ipv6_default_route
= TRUE
;
436 /* Don't emit network-changed when multicast-link-local routing
437 * changes. This rather arbitrary decision is mostly because it
438 * seems to change quite often...
440 if (g_inet_address_get_is_mc_link_local (g_inet_address_mask_get_address (network
)))
443 queue_network_changed (monitor
);
447 * g_network_monitor_base_remove_network:
448 * @monitor: the #GNetworkMonitorBase
449 * @network: a #GInetAddressMask
451 * Removes @network from @monitor's list of available networks.
456 g_network_monitor_base_remove_network (GNetworkMonitorBase
*monitor
,
457 GInetAddressMask
*network
)
461 for (i
= 0; i
< monitor
->priv
->networks
->len
; i
++)
463 if (g_inet_address_mask_equal (monitor
->priv
->networks
->pdata
[i
], network
))
465 g_ptr_array_remove_index_fast (monitor
->priv
->networks
, i
);
467 if (g_inet_address_mask_get_length (network
) == 0)
469 switch (g_inet_address_mask_get_family (network
))
471 case G_SOCKET_FAMILY_IPV4
:
472 monitor
->priv
->have_ipv4_default_route
= FALSE
;
474 case G_SOCKET_FAMILY_IPV6
:
475 monitor
->priv
->have_ipv6_default_route
= FALSE
;
482 queue_network_changed (monitor
);
489 * g_network_monitor_base_set_networks:
490 * @monitor: the #GNetworkMonitorBase
491 * @networks: (array length=length): an array of #GInetAddressMask
492 * @length: length of @networks
494 * Drops @monitor's current list of available networks and replaces
498 g_network_monitor_base_set_networks (GNetworkMonitorBase
*monitor
,
499 GInetAddressMask
**networks
,
504 g_ptr_array_set_size (monitor
->priv
->networks
, 0);
505 monitor
->priv
->have_ipv4_default_route
= FALSE
;
506 monitor
->priv
->have_ipv6_default_route
= FALSE
;
508 for (i
= 0; i
< length
; i
++)
509 g_network_monitor_base_add_network (monitor
, networks
[i
]);