1 /* -*- mode: C; c-file-style: "gnu" -*- */
2 /* bus.c message bus context object
4 * Copyright (C) 2003, 2004 Red Hat, Inc.
6 * Licensed under the Academic Free License version 2.1
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 #include "activation.h"
26 #include "connection.h"
30 #include "config-parser.h"
33 #include "dir-watch.h"
34 #include <dbus/dbus-list.h>
35 #include <dbus/dbus-hash.h>
36 #include <dbus/dbus-internals.h>
48 BusConnections *connections;
49 BusActivation *activation;
50 BusRegistry *registry;
52 BusMatchmaker *matchmaker;
53 DBusUserDatabase *user_database;
55 unsigned int fork : 1;
58 static dbus_int32_t server_data_slot = -1;
65 #define BUS_SERVER_DATA(server) (dbus_server_get_data ((server), server_data_slot))
68 server_get_context (DBusServer *server)
73 if (!dbus_server_allocate_data_slot (&server_data_slot))
76 bd = BUS_SERVER_DATA (server);
79 dbus_server_free_data_slot (&server_data_slot);
83 context = bd->context;
85 dbus_server_free_data_slot (&server_data_slot);
91 server_watch_callback (DBusWatch *watch,
92 unsigned int condition,
95 /* FIXME this can be done in dbus-mainloop.c
96 * if the code in activation.c for the babysitter
97 * watch handler is fixed.
100 return dbus_watch_handle (watch, condition);
104 add_server_watch (DBusWatch *watch,
107 DBusServer *server = data;
110 context = server_get_context (server);
112 return _dbus_loop_add_watch (context->loop,
113 watch, server_watch_callback, server,
118 remove_server_watch (DBusWatch *watch,
121 DBusServer *server = data;
124 context = server_get_context (server);
126 _dbus_loop_remove_watch (context->loop,
127 watch, server_watch_callback, server);
132 server_timeout_callback (DBusTimeout *timeout,
135 /* can return FALSE on OOM but we just let it fire again later */
136 dbus_timeout_handle (timeout);
140 add_server_timeout (DBusTimeout *timeout,
143 DBusServer *server = data;
146 context = server_get_context (server);
148 return _dbus_loop_add_timeout (context->loop,
149 timeout, server_timeout_callback, server, NULL);
153 remove_server_timeout (DBusTimeout *timeout,
156 DBusServer *server = data;
159 context = server_get_context (server);
161 _dbus_loop_remove_timeout (context->loop,
162 timeout, server_timeout_callback, server);
166 new_connection_callback (DBusServer *server,
167 DBusConnection *new_connection,
170 BusContext *context = data;
172 if (!bus_connections_setup_connection (context->connections, new_connection))
174 _dbus_verbose ("No memory to setup new connection\n");
176 /* if we don't do this, it will get unref'd without
177 * being disconnected... kind of strange really
178 * that we have to do this, people won't get it right
181 dbus_connection_close (new_connection);
184 dbus_connection_set_max_received_size (new_connection,
185 context->limits.max_incoming_bytes);
187 dbus_connection_set_max_message_size (new_connection,
188 context->limits.max_message_size);
190 /* on OOM, we won't have ref'd the connection so it will die. */
194 free_server_data (void *data)
196 BusServerData *bd = data;
202 setup_server (BusContext *context,
204 char **auth_mechanisms,
209 bd = dbus_new0 (BusServerData, 1);
210 if (!dbus_server_set_data (server,
212 bd, free_server_data))
219 bd->context = context;
221 if (!dbus_server_set_auth_mechanisms (server, (const char**) auth_mechanisms))
227 dbus_server_set_new_connection_function (server,
228 new_connection_callback,
231 if (!dbus_server_set_watch_functions (server,
242 if (!dbus_server_set_timeout_functions (server,
244 remove_server_timeout,
255 /* This code only gets executed the first time the
256 config files are parsed. It is not executed
257 when config files are reloaded.*/
259 process_config_first_time_only (BusContext *context,
260 BusConfigParser *parser,
264 DBusList **addresses;
265 const char *user, *pidfile;
266 char **auth_mechanisms;
267 DBusList **auth_mechanisms_list;
271 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
274 auth_mechanisms = NULL;
276 /* Check for an existing pid file. Of course this is a race;
277 * we'd have to use fcntl() locks on the pid file to
278 * avoid that. But we want to check for the pid file
279 * before overwriting any existing sockets, etc.
281 pidfile = bus_config_parser_get_pidfile (parser);
287 _dbus_string_init_const (&u, pidfile);
289 if (_dbus_stat (&u, &stbuf, NULL))
291 dbus_set_error (error, DBUS_ERROR_FAILED,
292 "The pid file \"%s\" exists, if the message bus is not running, remove this file",
298 /* keep around the pid filename so we can delete it later */
299 context->pidfile = _dbus_strdup (pidfile);
301 /* Build an array of auth mechanisms */
303 auth_mechanisms_list = bus_config_parser_get_mechanisms (parser);
304 len = _dbus_list_get_length (auth_mechanisms_list);
310 auth_mechanisms = dbus_new0 (char*, len + 1);
311 if (auth_mechanisms == NULL)
318 link = _dbus_list_get_first_link (auth_mechanisms_list);
321 auth_mechanisms[i] = _dbus_strdup (link->data);
322 if (auth_mechanisms[i] == NULL)
327 link = _dbus_list_get_next_link (auth_mechanisms_list, link);
332 auth_mechanisms = NULL;
335 /* Listen on our addresses */
337 addresses = bus_config_parser_get_addresses (parser);
339 link = _dbus_list_get_first_link (addresses);
344 server = dbus_server_listen (link->data, error);
347 _DBUS_ASSERT_ERROR_IS_SET (error);
350 else if (!setup_server (context, server, auth_mechanisms, error))
352 _DBUS_ASSERT_ERROR_IS_SET (error);
356 if (!_dbus_list_append (&context->servers, server))
362 link = _dbus_list_get_next_link (addresses, link);
365 /* note that type may be NULL */
366 context->type = _dbus_strdup (bus_config_parser_get_type (parser));
367 if (bus_config_parser_get_type (parser) != NULL && context->type == NULL)
373 user = bus_config_parser_get_user (parser);
376 context->user = _dbus_strdup (user);
377 if (context->user == NULL)
384 context->fork = bus_config_parser_get_fork (parser);
386 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
390 dbus_free_string_array (auth_mechanisms);
394 /* This code gets executed every time the config files
395 are parsed: both during BusContext construction
398 process_config_every_time (BusContext *context,
399 BusConfigParser *parser,
400 dbus_bool_t is_reload,
403 DBusString full_address;
409 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
414 if (!_dbus_string_init (&full_address))
420 /* get our limits and timeout lengths */
421 bus_config_parser_get_limits (parser, &context->limits);
423 context->policy = bus_config_parser_steal_policy (parser);
424 _dbus_assert (context->policy != NULL);
426 /* We have to build the address backward, so that
427 * <listen> later in the config file have priority
429 link = _dbus_list_get_last_link (&context->servers);
432 addr = dbus_server_get_address (link->data);
439 if (_dbus_string_get_length (&full_address) > 0)
441 if (!_dbus_string_append (&full_address, ";"))
448 if (!_dbus_string_append (&full_address, addr))
457 link = _dbus_list_get_prev_link (&context->servers, link);
461 dbus_free (context->address);
463 if (!_dbus_string_copy_data (&full_address, &context->address))
469 /* Create activation subsystem */
472 bus_activation_unref (context->activation);
474 context->activation = bus_activation_new (context, &full_address,
475 bus_config_parser_get_service_dirs (parser),
477 if (context->activation == NULL)
479 _DBUS_ASSERT_ERROR_IS_SET (error);
483 /* Drop existing conf-dir watches (if applicable) */
486 bus_drop_all_directory_watches ();
488 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
492 _dbus_string_free (&full_address);
501 process_config_postinit (BusContext *context,
502 BusConfigParser *parser,
505 DBusHashTable *service_context_table;
507 service_context_table = bus_config_parser_steal_service_context_table (parser);
508 if (!bus_registry_set_service_context_table (context->registry,
509 service_context_table))
515 _dbus_hash_table_unref (service_context_table);
517 /* Watch all conf directories */
518 _dbus_list_foreach (bus_config_parser_get_conf_dirs (parser),
519 (DBusForeachFunction) bus_watch_directory,
526 bus_context_new (const DBusString *config_file,
527 ForceForkSetting force_fork,
533 BusConfigParser *parser;
535 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
540 if (!dbus_server_allocate_data_slot (&server_data_slot))
546 context = dbus_new0 (BusContext, 1);
552 context->refcount = 1;
554 if (!_dbus_string_copy_data (config_file, &context->config_file))
560 context->loop = _dbus_loop_new ();
561 if (context->loop == NULL)
567 context->registry = bus_registry_new (context);
568 if (context->registry == NULL)
574 parser = bus_config_load (config_file, TRUE, NULL, error);
577 _DBUS_ASSERT_ERROR_IS_SET (error);
581 if (!process_config_first_time_only (context, parser, error))
583 _DBUS_ASSERT_ERROR_IS_SET (error);
586 if (!process_config_every_time (context, parser, FALSE, error))
588 _DBUS_ASSERT_ERROR_IS_SET (error);
592 /* we need another ref of the server data slot for the context
595 if (!dbus_server_allocate_data_slot (&server_data_slot))
596 _dbus_assert_not_reached ("second ref of server data slot failed");
598 context->user_database = _dbus_user_database_new ();
599 if (context->user_database == NULL)
605 /* Note that we don't know whether the print_addr_fd is
606 * one of the sockets we're using to listen on, or some
607 * other random thing. But I think the answer is "don't do
610 if (print_addr_fd >= 0)
613 const char *a = bus_context_get_address (context);
616 _dbus_assert (a != NULL);
617 if (!_dbus_string_init (&addr))
623 if (!_dbus_string_append (&addr, a) ||
624 !_dbus_string_append (&addr, "\n"))
626 _dbus_string_free (&addr);
631 bytes = _dbus_string_get_length (&addr);
632 if (_dbus_write (print_addr_fd, &addr, 0, bytes) != bytes)
634 dbus_set_error (error, DBUS_ERROR_FAILED,
635 "Printing message bus address: %s\n",
636 _dbus_strerror (errno));
637 _dbus_string_free (&addr);
641 if (print_addr_fd > 2)
642 _dbus_close (print_addr_fd, NULL);
644 _dbus_string_free (&addr);
647 context->connections = bus_connections_new (context);
648 if (context->connections == NULL)
654 context->matchmaker = bus_matchmaker_new ();
655 if (context->matchmaker == NULL)
661 /* Now become a daemon if appropriate */
662 if ((force_fork != FORK_NEVER && context->fork) || force_fork == FORK_ALWAYS)
666 if (context->pidfile)
667 _dbus_string_init_const (&u, context->pidfile);
669 if (!_dbus_become_daemon (context->pidfile ? &u : NULL,
673 _DBUS_ASSERT_ERROR_IS_SET (error);
679 /* Need to write PID file for ourselves, not for the child process */
680 if (context->pidfile != NULL)
684 _dbus_string_init_const (&u, context->pidfile);
686 if (!_dbus_write_pid_file (&u, _dbus_getpid (), error))
688 _DBUS_ASSERT_ERROR_IS_SET (error);
694 /* Write PID if requested */
695 if (print_pid_fd >= 0)
700 if (!_dbus_string_init (&pid))
706 if (!_dbus_string_append_int (&pid, _dbus_getpid ()) ||
707 !_dbus_string_append (&pid, "\n"))
709 _dbus_string_free (&pid);
714 bytes = _dbus_string_get_length (&pid);
715 if (_dbus_write (print_pid_fd, &pid, 0, bytes) != bytes)
717 dbus_set_error (error, DBUS_ERROR_FAILED,
718 "Printing message bus PID: %s\n",
719 _dbus_strerror (errno));
720 _dbus_string_free (&pid);
724 if (print_pid_fd > 2)
725 _dbus_close (print_pid_fd, NULL);
727 _dbus_string_free (&pid);
730 if (!bus_selinux_full_init ())
732 _dbus_warn ("SELinux initialization failed\n");
735 if (!process_config_postinit (context, parser, error))
737 _DBUS_ASSERT_ERROR_IS_SET (error);
743 bus_config_parser_unref (parser);
747 /* Here we change our credentials if required,
748 * as soon as we've set up our sockets and pidfile
750 if (context->user != NULL)
752 DBusCredentials creds;
755 _dbus_string_init_const (&u, context->user);
757 if (!_dbus_credentials_from_username (&u, &creds) ||
761 dbus_set_error (error, DBUS_ERROR_FAILED,
762 "Could not get UID and GID for username \"%s\"",
767 if (!_dbus_change_identity (creds.uid, creds.gid, error))
769 _DBUS_ASSERT_ERROR_IS_SET (error);
774 dbus_server_free_data_slot (&server_data_slot);
780 bus_config_parser_unref (parser);
782 bus_context_unref (context);
784 if (server_data_slot >= 0)
785 dbus_server_free_data_slot (&server_data_slot);
791 bus_context_reload_config (BusContext *context,
794 BusConfigParser *parser;
795 DBusString config_file;
798 /* Flush the user database cache */
799 _dbus_user_database_flush(context->user_database);
802 _dbus_string_init_const (&config_file, context->config_file);
803 parser = bus_config_load (&config_file, TRUE, NULL, error);
806 _DBUS_ASSERT_ERROR_IS_SET (error);
810 if (!process_config_every_time (context, parser, TRUE, error))
812 _DBUS_ASSERT_ERROR_IS_SET (error);
815 if (!process_config_postinit (context, parser, error))
817 _DBUS_ASSERT_ERROR_IS_SET (error);
824 bus_config_parser_unref (parser);
829 shutdown_server (BusContext *context,
832 if (server == NULL ||
833 !dbus_server_get_is_connected (server))
836 if (!dbus_server_set_watch_functions (server,
840 _dbus_assert_not_reached ("setting watch functions to NULL failed");
842 if (!dbus_server_set_timeout_functions (server,
846 _dbus_assert_not_reached ("setting timeout functions to NULL failed");
848 dbus_server_disconnect (server);
852 bus_context_shutdown (BusContext *context)
856 link = _dbus_list_get_first_link (&context->servers);
859 shutdown_server (context, link->data);
861 link = _dbus_list_get_next_link (&context->servers, link);
866 bus_context_ref (BusContext *context)
868 _dbus_assert (context->refcount > 0);
869 context->refcount += 1;
875 bus_context_unref (BusContext *context)
877 _dbus_assert (context->refcount > 0);
878 context->refcount -= 1;
880 if (context->refcount == 0)
884 _dbus_verbose ("Finalizing bus context %p\n", context);
886 bus_context_shutdown (context);
888 if (context->connections)
890 bus_connections_unref (context->connections);
891 context->connections = NULL;
894 if (context->registry)
896 bus_registry_unref (context->registry);
897 context->registry = NULL;
900 if (context->activation)
902 bus_activation_unref (context->activation);
903 context->activation = NULL;
906 link = _dbus_list_get_first_link (&context->servers);
909 dbus_server_unref (link->data);
911 link = _dbus_list_get_next_link (&context->servers, link);
913 _dbus_list_clear (&context->servers);
917 bus_policy_unref (context->policy);
918 context->policy = NULL;
923 _dbus_loop_unref (context->loop);
924 context->loop = NULL;
927 if (context->matchmaker)
929 bus_matchmaker_unref (context->matchmaker);
930 context->matchmaker = NULL;
933 dbus_free (context->config_file);
934 dbus_free (context->type);
935 dbus_free (context->address);
936 dbus_free (context->user);
938 if (context->pidfile)
941 _dbus_string_init_const (&u, context->pidfile);
943 /* Deliberately ignore errors here, since there's not much
944 * we can do about it, and we're exiting anyways.
946 _dbus_delete_file (&u, NULL);
948 dbus_free (context->pidfile);
951 if (context->user_database != NULL)
952 _dbus_user_database_unref (context->user_database);
956 dbus_server_free_data_slot (&server_data_slot);
960 /* type may be NULL */
962 bus_context_get_type (BusContext *context)
964 return context->type;
968 bus_context_get_address (BusContext *context)
970 return context->address;
974 bus_context_get_registry (BusContext *context)
976 return context->registry;
980 bus_context_get_connections (BusContext *context)
982 return context->connections;
986 bus_context_get_activation (BusContext *context)
988 return context->activation;
992 bus_context_get_matchmaker (BusContext *context)
994 return context->matchmaker;
998 bus_context_get_loop (BusContext *context)
1000 return context->loop;
1004 bus_context_get_user_database (BusContext *context)
1006 return context->user_database;
1010 bus_context_allow_user (BusContext *context,
1013 return bus_policy_allow_user (context->policy,
1014 context->user_database,
1019 bus_context_get_policy (BusContext *context)
1021 return context->policy;
1025 bus_context_create_client_policy (BusContext *context,
1026 DBusConnection *connection,
1029 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1030 return bus_policy_create_client_policy (context->policy, connection,
1035 bus_context_get_activation_timeout (BusContext *context)
1038 return context->limits.activation_timeout;
1042 bus_context_get_auth_timeout (BusContext *context)
1044 return context->limits.auth_timeout;
1048 bus_context_get_max_completed_connections (BusContext *context)
1050 return context->limits.max_completed_connections;
1054 bus_context_get_max_incomplete_connections (BusContext *context)
1056 return context->limits.max_incomplete_connections;
1060 bus_context_get_max_connections_per_user (BusContext *context)
1062 return context->limits.max_connections_per_user;
1066 bus_context_get_max_pending_activations (BusContext *context)
1068 return context->limits.max_pending_activations;
1072 bus_context_get_max_services_per_connection (BusContext *context)
1074 return context->limits.max_services_per_connection;
1078 bus_context_get_max_match_rules_per_connection (BusContext *context)
1080 return context->limits.max_match_rules_per_connection;
1084 bus_context_get_max_replies_per_connection (BusContext *context)
1086 return context->limits.max_replies_per_connection;
1090 bus_context_get_reply_timeout (BusContext *context)
1092 return context->limits.reply_timeout;
1096 * addressed_recipient is the recipient specified in the message.
1098 * proposed_recipient is the recipient we're considering sending
1099 * to right this second, and may be an eavesdropper.
1101 * sender is the sender of the message.
1103 * NULL for proposed_recipient or sender definitely means the bus driver.
1105 * NULL for addressed_recipient may mean the bus driver, or may mean
1106 * no destination was specified in the message (e.g. a signal).
1109 bus_context_check_security_policy (BusContext *context,
1110 BusTransaction *transaction,
1111 DBusConnection *sender,
1112 DBusConnection *addressed_recipient,
1113 DBusConnection *proposed_recipient,
1114 DBusMessage *message,
1117 BusClientPolicy *sender_policy;
1118 BusClientPolicy *recipient_policy;
1120 dbus_bool_t requested_reply;
1122 type = dbus_message_get_type (message);
1124 /* dispatch.c was supposed to ensure these invariants */
1125 _dbus_assert (dbus_message_get_destination (message) != NULL ||
1126 type == DBUS_MESSAGE_TYPE_SIGNAL ||
1127 (sender == NULL && !bus_connection_is_active (proposed_recipient)));
1128 _dbus_assert (type == DBUS_MESSAGE_TYPE_SIGNAL ||
1129 addressed_recipient != NULL ||
1130 strcmp (dbus_message_get_destination (message), DBUS_SERVICE_DBUS) == 0);
1134 case DBUS_MESSAGE_TYPE_METHOD_CALL:
1135 case DBUS_MESSAGE_TYPE_SIGNAL:
1136 case DBUS_MESSAGE_TYPE_METHOD_RETURN:
1137 case DBUS_MESSAGE_TYPE_ERROR:
1141 _dbus_verbose ("security check disallowing message of unknown type %d\n",
1144 dbus_set_error (error, DBUS_ERROR_ACCESS_DENIED,
1145 "Message bus will not accept messages of unknown type\n");
1150 requested_reply = FALSE;
1156 dest = dbus_message_get_destination (message);
1158 /* First verify the SELinux access controls. If allowed then
1159 * go on with the standard checks.
1161 if (!bus_selinux_allows_send (sender, proposed_recipient,
1162 dbus_message_type_to_string (dbus_message_get_type (message)),
1163 dbus_message_get_interface (message),
1164 dbus_message_get_member (message),
1165 dbus_message_get_error_name (message),
1166 dest ? dest : DBUS_SERVICE_DBUS, error))
1169 if (dbus_error_is_set (error) &&
1170 dbus_error_has_name (error, DBUS_ERROR_NO_MEMORY))
1176 dbus_set_error (error, DBUS_ERROR_ACCESS_DENIED,
1177 "An SELinux policy prevents this sender "
1178 "from sending this message to this recipient "
1179 "(rejected message had interface \"%s\" "
1180 "member \"%s\" error name \"%s\" destination \"%s\")",
1181 dbus_message_get_interface (message) ?
1182 dbus_message_get_interface (message) : "(unset)",
1183 dbus_message_get_member (message) ?
1184 dbus_message_get_member (message) : "(unset)",
1185 dbus_message_get_error_name (message) ?
1186 dbus_message_get_error_name (message) : "(unset)",
1187 dest ? dest : DBUS_SERVICE_DBUS);
1188 _dbus_verbose ("SELinux security check denying send to service\n");
1192 if (bus_connection_is_active (sender))
1194 sender_policy = bus_connection_get_policy (sender);
1195 _dbus_assert (sender_policy != NULL);
1197 /* Fill in requested_reply variable with TRUE if this is a
1198 * reply and the reply was pending.
1200 if (dbus_message_get_reply_serial (message) != 0)
1202 if (proposed_recipient != NULL /* not to the bus driver */ &&
1203 addressed_recipient == proposed_recipient /* not eavesdropping */)
1207 dbus_error_init (&error2);
1208 requested_reply = bus_connections_check_reply (bus_connection_get_connections (sender),
1210 sender, addressed_recipient, message,
1212 if (dbus_error_is_set (&error2))
1214 dbus_move_error (&error2, error);
1222 /* Policy for inactive connections is that they can only send
1223 * the hello message to the bus driver
1225 if (proposed_recipient == NULL &&
1226 dbus_message_is_method_call (message,
1227 DBUS_INTERFACE_DBUS,
1230 _dbus_verbose ("security check allowing %s message\n",
1236 _dbus_verbose ("security check disallowing non-%s message\n",
1239 dbus_set_error (error, DBUS_ERROR_ACCESS_DENIED,
1240 "Client tried to send a message other than %s without being registered",
1249 sender_policy = NULL;
1251 /* If the sender is the bus driver, we assume any reply was a
1252 * requested reply as bus driver won't send bogus ones
1254 if (addressed_recipient == proposed_recipient /* not eavesdropping */ &&
1255 dbus_message_get_reply_serial (message) != 0)
1256 requested_reply = TRUE;
1259 _dbus_assert ((sender != NULL && sender_policy != NULL) ||
1260 (sender == NULL && sender_policy == NULL));
1262 if (proposed_recipient != NULL)
1264 /* only the bus driver can send to an inactive recipient (as it
1265 * owns no services, so other apps can't address it). Inactive
1266 * recipients can receive any message.
1268 if (bus_connection_is_active (proposed_recipient))
1270 recipient_policy = bus_connection_get_policy (proposed_recipient);
1271 _dbus_assert (recipient_policy != NULL);
1273 else if (sender == NULL)
1275 _dbus_verbose ("security check using NULL recipient policy for message from bus\n");
1276 recipient_policy = NULL;
1280 _dbus_assert_not_reached ("a message was somehow sent to an inactive recipient from a source other than the message bus\n");
1281 recipient_policy = NULL;
1285 recipient_policy = NULL;
1287 _dbus_assert ((proposed_recipient != NULL && recipient_policy != NULL) ||
1288 (proposed_recipient != NULL && sender == NULL && recipient_policy == NULL) ||
1289 (proposed_recipient == NULL && recipient_policy == NULL));
1291 if (sender_policy &&
1292 !bus_client_policy_check_can_send (sender_policy,
1300 dest = dbus_message_get_destination (message);
1301 dbus_set_error (error, DBUS_ERROR_ACCESS_DENIED,
1302 "A security policy in place prevents this sender "
1303 "from sending this message to this recipient, "
1304 "see message bus configuration file (rejected message "
1305 "had interface \"%s\" member \"%s\" error name \"%s\" destination \"%s\")",
1306 dbus_message_get_interface (message) ?
1307 dbus_message_get_interface (message) : "(unset)",
1308 dbus_message_get_member (message) ?
1309 dbus_message_get_member (message) : "(unset)",
1310 dbus_message_get_error_name (message) ?
1311 dbus_message_get_error_name (message) : "(unset)",
1312 dest ? dest : DBUS_SERVICE_DBUS);
1313 _dbus_verbose ("security policy disallowing message due to sender policy\n");
1317 if (recipient_policy &&
1318 !bus_client_policy_check_can_receive (recipient_policy,
1322 addressed_recipient, proposed_recipient,
1327 dest = dbus_message_get_destination (message);
1328 dbus_set_error (error, DBUS_ERROR_ACCESS_DENIED,
1329 "A security policy in place prevents this recipient "
1330 "from receiving this message from this sender, "
1331 "see message bus configuration file (rejected message "
1332 "had interface \"%s\" member \"%s\" error name \"%s\" destination \"%s\" reply serial %u requested_reply=%d)",
1333 dbus_message_get_interface (message) ?
1334 dbus_message_get_interface (message) : "(unset)",
1335 dbus_message_get_member (message) ?
1336 dbus_message_get_member (message) : "(unset)",
1337 dbus_message_get_error_name (message) ?
1338 dbus_message_get_error_name (message) : "(unset)",
1339 dest ? dest : DBUS_SERVICE_DBUS,
1340 dbus_message_get_reply_serial (message),
1342 _dbus_verbose ("security policy disallowing message due to recipient policy\n");
1346 /* See if limits on size have been exceeded */
1347 if (proposed_recipient &&
1348 dbus_connection_get_outgoing_size (proposed_recipient) >
1349 context->limits.max_outgoing_bytes)
1353 dest = dbus_message_get_destination (message);
1354 dbus_set_error (error, DBUS_ERROR_LIMITS_EXCEEDED,
1355 "The destination service \"%s\" has a full message queue",
1356 dest ? dest : (proposed_recipient ?
1357 bus_connection_get_name (proposed_recipient) :
1358 DBUS_SERVICE_DBUS));
1359 _dbus_verbose ("security policy disallowing message due to full message queue\n");
1363 /* Record that we will allow a reply here in the future (don't
1364 * bother if the recipient is the bus or this is an eavesdropping
1365 * connection). Only the addressed recipient may reply.
1367 if (type == DBUS_MESSAGE_TYPE_METHOD_CALL &&
1369 addressed_recipient &&
1370 addressed_recipient == proposed_recipient && /* not eavesdropping */
1371 !bus_connections_expect_reply (bus_connection_get_connections (sender),
1373 sender, addressed_recipient,
1376 _dbus_verbose ("Failed to record reply expectation or problem with the message expecting a reply\n");
1380 _dbus_verbose ("security policy allowing message\n");