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;
534 DBusCredentials creds;
536 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
541 if (!dbus_server_allocate_data_slot (&server_data_slot))
547 context = dbus_new0 (BusContext, 1);
553 context->refcount = 1;
555 if (!_dbus_string_copy_data (config_file, &context->config_file))
561 context->loop = _dbus_loop_new ();
562 if (context->loop == NULL)
568 context->registry = bus_registry_new (context);
569 if (context->registry == NULL)
575 parser = bus_config_load (config_file, TRUE, NULL, error);
578 _DBUS_ASSERT_ERROR_IS_SET (error);
582 if (!process_config_first_time_only (context, parser, error))
584 _DBUS_ASSERT_ERROR_IS_SET (error);
587 if (!process_config_every_time (context, parser, FALSE, error))
589 _DBUS_ASSERT_ERROR_IS_SET (error);
593 /* we need another ref of the server data slot for the context
596 if (!dbus_server_allocate_data_slot (&server_data_slot))
597 _dbus_assert_not_reached ("second ref of server data slot failed");
599 context->user_database = _dbus_user_database_new ();
600 if (context->user_database == NULL)
606 /* Note that we don't know whether the print_addr_fd is
607 * one of the sockets we're using to listen on, or some
608 * other random thing. But I think the answer is "don't do
611 if (print_addr_fd >= 0)
614 const char *a = bus_context_get_address (context);
617 _dbus_assert (a != NULL);
618 if (!_dbus_string_init (&addr))
624 if (!_dbus_string_append (&addr, a) ||
625 !_dbus_string_append (&addr, "\n"))
627 _dbus_string_free (&addr);
632 bytes = _dbus_string_get_length (&addr);
633 if (_dbus_write_socket (print_addr_fd, &addr, 0, bytes) != bytes)
635 dbus_set_error (error, DBUS_ERROR_FAILED,
636 "Printing message bus address: %s\n",
637 _dbus_strerror (errno));
638 _dbus_string_free (&addr);
642 if (print_addr_fd > 2)
643 _dbus_close_socket (print_addr_fd, NULL);
645 _dbus_string_free (&addr);
648 context->connections = bus_connections_new (context);
649 if (context->connections == NULL)
655 context->matchmaker = bus_matchmaker_new ();
656 if (context->matchmaker == NULL)
662 /* check user before we fork */
663 if (context->user != NULL)
667 _dbus_string_init_const (&u, context->user);
669 if (!_dbus_credentials_from_username (&u, &creds) ||
673 dbus_set_error (error, DBUS_ERROR_FAILED,
674 "Could not get UID and GID for username \"%s\"",
680 /* Now become a daemon if appropriate */
681 if ((force_fork != FORK_NEVER && context->fork) || force_fork == FORK_ALWAYS)
685 if (context->pidfile)
686 _dbus_string_init_const (&u, context->pidfile);
688 if (!_dbus_become_daemon (context->pidfile ? &u : NULL,
692 _DBUS_ASSERT_ERROR_IS_SET (error);
698 /* Need to write PID file for ourselves, not for the child process */
699 if (context->pidfile != NULL)
703 _dbus_string_init_const (&u, context->pidfile);
705 if (!_dbus_write_pid_file (&u, _dbus_getpid (), error))
707 _DBUS_ASSERT_ERROR_IS_SET (error);
713 /* Write PID if requested */
714 if (print_pid_fd >= 0)
719 if (!_dbus_string_init (&pid))
725 if (!_dbus_string_append_int (&pid, _dbus_getpid ()) ||
726 !_dbus_string_append (&pid, "\n"))
728 _dbus_string_free (&pid);
733 bytes = _dbus_string_get_length (&pid);
734 if (_dbus_write_socket (print_pid_fd, &pid, 0, bytes) != bytes)
736 dbus_set_error (error, DBUS_ERROR_FAILED,
737 "Printing message bus PID: %s\n",
738 _dbus_strerror (errno));
739 _dbus_string_free (&pid);
743 if (print_pid_fd > 2)
744 _dbus_close_socket (print_pid_fd, NULL);
746 _dbus_string_free (&pid);
749 if (!bus_selinux_full_init ())
751 _dbus_warn ("SELinux initialization failed\n");
754 if (!process_config_postinit (context, parser, error))
756 _DBUS_ASSERT_ERROR_IS_SET (error);
762 bus_config_parser_unref (parser);
766 /* Here we change our credentials if required,
767 * as soon as we've set up our sockets and pidfile
769 if (context->user != NULL)
771 if (!_dbus_change_identity (creds.uid, creds.gid, error))
773 _DBUS_ASSERT_ERROR_IS_SET (error);
778 dbus_server_free_data_slot (&server_data_slot);
784 bus_config_parser_unref (parser);
786 bus_context_unref (context);
788 if (server_data_slot >= 0)
789 dbus_server_free_data_slot (&server_data_slot);
795 bus_context_reload_config (BusContext *context,
798 BusConfigParser *parser;
799 DBusString config_file;
802 /* Flush the user database cache */
803 _dbus_user_database_flush(context->user_database);
806 _dbus_string_init_const (&config_file, context->config_file);
807 parser = bus_config_load (&config_file, TRUE, NULL, error);
810 _DBUS_ASSERT_ERROR_IS_SET (error);
814 if (!process_config_every_time (context, parser, TRUE, error))
816 _DBUS_ASSERT_ERROR_IS_SET (error);
819 if (!process_config_postinit (context, parser, error))
821 _DBUS_ASSERT_ERROR_IS_SET (error);
828 bus_config_parser_unref (parser);
833 shutdown_server (BusContext *context,
836 if (server == NULL ||
837 !dbus_server_get_is_connected (server))
840 if (!dbus_server_set_watch_functions (server,
844 _dbus_assert_not_reached ("setting watch functions to NULL failed");
846 if (!dbus_server_set_timeout_functions (server,
850 _dbus_assert_not_reached ("setting timeout functions to NULL failed");
852 dbus_server_disconnect (server);
856 bus_context_shutdown (BusContext *context)
860 link = _dbus_list_get_first_link (&context->servers);
863 shutdown_server (context, link->data);
865 link = _dbus_list_get_next_link (&context->servers, link);
870 bus_context_ref (BusContext *context)
872 _dbus_assert (context->refcount > 0);
873 context->refcount += 1;
879 bus_context_unref (BusContext *context)
881 _dbus_assert (context->refcount > 0);
882 context->refcount -= 1;
884 if (context->refcount == 0)
888 _dbus_verbose ("Finalizing bus context %p\n", context);
890 bus_context_shutdown (context);
892 if (context->connections)
894 bus_connections_unref (context->connections);
895 context->connections = NULL;
898 if (context->registry)
900 bus_registry_unref (context->registry);
901 context->registry = NULL;
904 if (context->activation)
906 bus_activation_unref (context->activation);
907 context->activation = NULL;
910 link = _dbus_list_get_first_link (&context->servers);
913 dbus_server_unref (link->data);
915 link = _dbus_list_get_next_link (&context->servers, link);
917 _dbus_list_clear (&context->servers);
921 bus_policy_unref (context->policy);
922 context->policy = NULL;
927 _dbus_loop_unref (context->loop);
928 context->loop = NULL;
931 if (context->matchmaker)
933 bus_matchmaker_unref (context->matchmaker);
934 context->matchmaker = NULL;
937 dbus_free (context->config_file);
938 dbus_free (context->type);
939 dbus_free (context->address);
940 dbus_free (context->user);
942 if (context->pidfile)
945 _dbus_string_init_const (&u, context->pidfile);
947 /* Deliberately ignore errors here, since there's not much
948 * we can do about it, and we're exiting anyways.
950 _dbus_delete_file (&u, NULL);
952 dbus_free (context->pidfile);
955 if (context->user_database != NULL)
956 _dbus_user_database_unref (context->user_database);
960 dbus_server_free_data_slot (&server_data_slot);
964 /* type may be NULL */
966 bus_context_get_type (BusContext *context)
968 return context->type;
972 bus_context_get_address (BusContext *context)
974 return context->address;
978 bus_context_get_registry (BusContext *context)
980 return context->registry;
984 bus_context_get_connections (BusContext *context)
986 return context->connections;
990 bus_context_get_activation (BusContext *context)
992 return context->activation;
996 bus_context_get_matchmaker (BusContext *context)
998 return context->matchmaker;
1002 bus_context_get_loop (BusContext *context)
1004 return context->loop;
1008 bus_context_get_user_database (BusContext *context)
1010 return context->user_database;
1014 bus_context_allow_user (BusContext *context,
1017 return bus_policy_allow_user (context->policy,
1018 context->user_database,
1023 bus_context_get_policy (BusContext *context)
1025 return context->policy;
1029 bus_context_create_client_policy (BusContext *context,
1030 DBusConnection *connection,
1033 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1034 return bus_policy_create_client_policy (context->policy, connection,
1039 bus_context_get_activation_timeout (BusContext *context)
1042 return context->limits.activation_timeout;
1046 bus_context_get_auth_timeout (BusContext *context)
1048 return context->limits.auth_timeout;
1052 bus_context_get_max_completed_connections (BusContext *context)
1054 return context->limits.max_completed_connections;
1058 bus_context_get_max_incomplete_connections (BusContext *context)
1060 return context->limits.max_incomplete_connections;
1064 bus_context_get_max_connections_per_user (BusContext *context)
1066 return context->limits.max_connections_per_user;
1070 bus_context_get_max_pending_activations (BusContext *context)
1072 return context->limits.max_pending_activations;
1076 bus_context_get_max_services_per_connection (BusContext *context)
1078 return context->limits.max_services_per_connection;
1082 bus_context_get_max_match_rules_per_connection (BusContext *context)
1084 return context->limits.max_match_rules_per_connection;
1088 bus_context_get_max_replies_per_connection (BusContext *context)
1090 return context->limits.max_replies_per_connection;
1094 bus_context_get_reply_timeout (BusContext *context)
1096 return context->limits.reply_timeout;
1100 * addressed_recipient is the recipient specified in the message.
1102 * proposed_recipient is the recipient we're considering sending
1103 * to right this second, and may be an eavesdropper.
1105 * sender is the sender of the message.
1107 * NULL for proposed_recipient or sender definitely means the bus driver.
1109 * NULL for addressed_recipient may mean the bus driver, or may mean
1110 * no destination was specified in the message (e.g. a signal).
1113 bus_context_check_security_policy (BusContext *context,
1114 BusTransaction *transaction,
1115 DBusConnection *sender,
1116 DBusConnection *addressed_recipient,
1117 DBusConnection *proposed_recipient,
1118 DBusMessage *message,
1121 BusClientPolicy *sender_policy;
1122 BusClientPolicy *recipient_policy;
1124 dbus_bool_t requested_reply;
1126 type = dbus_message_get_type (message);
1128 /* dispatch.c was supposed to ensure these invariants */
1129 _dbus_assert (dbus_message_get_destination (message) != NULL ||
1130 type == DBUS_MESSAGE_TYPE_SIGNAL ||
1131 (sender == NULL && !bus_connection_is_active (proposed_recipient)));
1132 _dbus_assert (type == DBUS_MESSAGE_TYPE_SIGNAL ||
1133 addressed_recipient != NULL ||
1134 strcmp (dbus_message_get_destination (message), DBUS_SERVICE_DBUS) == 0);
1138 case DBUS_MESSAGE_TYPE_METHOD_CALL:
1139 case DBUS_MESSAGE_TYPE_SIGNAL:
1140 case DBUS_MESSAGE_TYPE_METHOD_RETURN:
1141 case DBUS_MESSAGE_TYPE_ERROR:
1145 _dbus_verbose ("security check disallowing message of unknown type %d\n",
1148 dbus_set_error (error, DBUS_ERROR_ACCESS_DENIED,
1149 "Message bus will not accept messages of unknown type\n");
1154 requested_reply = FALSE;
1160 dest = dbus_message_get_destination (message);
1162 /* First verify the SELinux access controls. If allowed then
1163 * go on with the standard checks.
1165 if (!bus_selinux_allows_send (sender, proposed_recipient,
1166 dbus_message_type_to_string (dbus_message_get_type (message)),
1167 dbus_message_get_interface (message),
1168 dbus_message_get_member (message),
1169 dbus_message_get_error_name (message),
1170 dest ? dest : DBUS_SERVICE_DBUS, error))
1173 if (dbus_error_is_set (error) &&
1174 dbus_error_has_name (error, DBUS_ERROR_NO_MEMORY))
1180 dbus_set_error (error, DBUS_ERROR_ACCESS_DENIED,
1181 "An SELinux policy prevents this sender "
1182 "from sending this message to this recipient "
1183 "(rejected message had interface \"%s\" "
1184 "member \"%s\" error name \"%s\" destination \"%s\")",
1185 dbus_message_get_interface (message) ?
1186 dbus_message_get_interface (message) : "(unset)",
1187 dbus_message_get_member (message) ?
1188 dbus_message_get_member (message) : "(unset)",
1189 dbus_message_get_error_name (message) ?
1190 dbus_message_get_error_name (message) : "(unset)",
1191 dest ? dest : DBUS_SERVICE_DBUS);
1192 _dbus_verbose ("SELinux security check denying send to service\n");
1196 if (bus_connection_is_active (sender))
1198 sender_policy = bus_connection_get_policy (sender);
1199 _dbus_assert (sender_policy != NULL);
1201 /* Fill in requested_reply variable with TRUE if this is a
1202 * reply and the reply was pending.
1204 if (dbus_message_get_reply_serial (message) != 0)
1206 if (proposed_recipient != NULL /* not to the bus driver */ &&
1207 addressed_recipient == proposed_recipient /* not eavesdropping */)
1211 dbus_error_init (&error2);
1212 requested_reply = bus_connections_check_reply (bus_connection_get_connections (sender),
1214 sender, addressed_recipient, message,
1216 if (dbus_error_is_set (&error2))
1218 dbus_move_error (&error2, error);
1226 /* Policy for inactive connections is that they can only send
1227 * the hello message to the bus driver
1229 if (proposed_recipient == NULL &&
1230 dbus_message_is_method_call (message,
1231 DBUS_INTERFACE_DBUS,
1234 _dbus_verbose ("security check allowing %s message\n",
1240 _dbus_verbose ("security check disallowing non-%s message\n",
1243 dbus_set_error (error, DBUS_ERROR_ACCESS_DENIED,
1244 "Client tried to send a message other than %s without being registered",
1253 sender_policy = NULL;
1255 /* If the sender is the bus driver, we assume any reply was a
1256 * requested reply as bus driver won't send bogus ones
1258 if (addressed_recipient == proposed_recipient /* not eavesdropping */ &&
1259 dbus_message_get_reply_serial (message) != 0)
1260 requested_reply = TRUE;
1263 _dbus_assert ((sender != NULL && sender_policy != NULL) ||
1264 (sender == NULL && sender_policy == NULL));
1266 if (proposed_recipient != NULL)
1268 /* only the bus driver can send to an inactive recipient (as it
1269 * owns no services, so other apps can't address it). Inactive
1270 * recipients can receive any message.
1272 if (bus_connection_is_active (proposed_recipient))
1274 recipient_policy = bus_connection_get_policy (proposed_recipient);
1275 _dbus_assert (recipient_policy != NULL);
1277 else if (sender == NULL)
1279 _dbus_verbose ("security check using NULL recipient policy for message from bus\n");
1280 recipient_policy = NULL;
1284 _dbus_assert_not_reached ("a message was somehow sent to an inactive recipient from a source other than the message bus\n");
1285 recipient_policy = NULL;
1289 recipient_policy = NULL;
1291 _dbus_assert ((proposed_recipient != NULL && recipient_policy != NULL) ||
1292 (proposed_recipient != NULL && sender == NULL && recipient_policy == NULL) ||
1293 (proposed_recipient == NULL && recipient_policy == NULL));
1295 if (sender_policy &&
1296 !bus_client_policy_check_can_send (sender_policy,
1304 dest = dbus_message_get_destination (message);
1305 dbus_set_error (error, DBUS_ERROR_ACCESS_DENIED,
1306 "A security policy in place prevents this sender "
1307 "from sending this message to this recipient, "
1308 "see message bus configuration file (rejected message "
1309 "had interface \"%s\" member \"%s\" error name \"%s\" destination \"%s\")",
1310 dbus_message_get_interface (message) ?
1311 dbus_message_get_interface (message) : "(unset)",
1312 dbus_message_get_member (message) ?
1313 dbus_message_get_member (message) : "(unset)",
1314 dbus_message_get_error_name (message) ?
1315 dbus_message_get_error_name (message) : "(unset)",
1316 dest ? dest : DBUS_SERVICE_DBUS);
1317 _dbus_verbose ("security policy disallowing message due to sender policy\n");
1321 if (recipient_policy &&
1322 !bus_client_policy_check_can_receive (recipient_policy,
1326 addressed_recipient, proposed_recipient,
1331 dest = dbus_message_get_destination (message);
1332 dbus_set_error (error, DBUS_ERROR_ACCESS_DENIED,
1333 "A security policy in place prevents this recipient "
1334 "from receiving this message from this sender, "
1335 "see message bus configuration file (rejected message "
1336 "had interface \"%s\" member \"%s\" error name \"%s\" destination \"%s\" reply serial %u requested_reply=%d)",
1337 dbus_message_get_interface (message) ?
1338 dbus_message_get_interface (message) : "(unset)",
1339 dbus_message_get_member (message) ?
1340 dbus_message_get_member (message) : "(unset)",
1341 dbus_message_get_error_name (message) ?
1342 dbus_message_get_error_name (message) : "(unset)",
1343 dest ? dest : DBUS_SERVICE_DBUS,
1344 dbus_message_get_reply_serial (message),
1346 _dbus_verbose ("security policy disallowing message due to recipient policy\n");
1350 /* See if limits on size have been exceeded */
1351 if (proposed_recipient &&
1352 dbus_connection_get_outgoing_size (proposed_recipient) >
1353 context->limits.max_outgoing_bytes)
1357 dest = dbus_message_get_destination (message);
1358 dbus_set_error (error, DBUS_ERROR_LIMITS_EXCEEDED,
1359 "The destination service \"%s\" has a full message queue",
1360 dest ? dest : (proposed_recipient ?
1361 bus_connection_get_name (proposed_recipient) :
1362 DBUS_SERVICE_DBUS));
1363 _dbus_verbose ("security policy disallowing message due to full message queue\n");
1367 /* Record that we will allow a reply here in the future (don't
1368 * bother if the recipient is the bus or this is an eavesdropping
1369 * connection). Only the addressed recipient may reply.
1371 if (type == DBUS_MESSAGE_TYPE_METHOD_CALL &&
1373 addressed_recipient &&
1374 addressed_recipient == proposed_recipient && /* not eavesdropping */
1375 !bus_connections_expect_reply (bus_connection_get_connections (sender),
1377 sender, addressed_recipient,
1380 _dbus_verbose ("Failed to record reply expectation or problem with the message expecting a reply\n");
1384 _dbus_verbose ("security policy allowing message\n");