1 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
2 /* activation.c Activation of services
4 * Copyright (C) 2003 CodeFactory AB
5 * Copyright (C) 2003 Red Hat, Inc.
6 * Copyright (C) 2004 Imendio HB
8 * Licensed under the Academic Free License version 2.1
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
27 #include "activation.h"
28 #include "activation-exit-codes.h"
29 #include "desktop-file.h"
34 #include <dbus/dbus-internals.h>
35 #include <dbus/dbus-hash.h>
36 #include <dbus/dbus-list.h>
37 #include <dbus/dbus-shell.h>
38 #include <dbus/dbus-spawn.h>
39 #include <dbus/dbus-timeout.h>
40 #include <dbus/dbus-sysdeps.h>
48 DBusHashTable *entries;
49 DBusHashTable *pending_activations;
52 int n_pending_activations; /**< This is in fact the number of BusPendingActivationEntry,
53 * i.e. number of pending activation requests, not pending
56 DBusHashTable *directories;
57 DBusHashTable *environment;
64 DBusHashTable *entries;
65 } BusServiceDirectory;
73 char *systemd_service;
75 BusServiceDirectory *s_dir;
79 typedef struct BusPendingActivationEntry BusPendingActivationEntry;
81 struct BusPendingActivationEntry
83 DBusMessage *activation_message;
84 DBusConnection *connection;
86 dbus_bool_t auto_activation;
92 BusActivation *activation;
95 char *systemd_service;
98 DBusBabysitter *babysitter;
100 unsigned int timeout_added : 1;
101 } BusPendingActivation;
104 static BusServiceDirectory *
105 bus_service_directory_ref (BusServiceDirectory *dir)
107 _dbus_assert (dir->refcount);
116 bus_service_directory_unref (BusServiceDirectory *dir)
121 _dbus_assert (dir->refcount > 0);
124 if (dir->refcount > 0)
128 _dbus_hash_table_unref (dir->entries);
130 dbus_free (dir->dir_c);
135 bus_pending_activation_entry_free (BusPendingActivationEntry *entry)
137 if (entry->activation_message)
138 dbus_message_unref (entry->activation_message);
140 if (entry->connection)
141 dbus_connection_unref (entry->connection);
147 handle_timeout_callback (DBusTimeout *timeout,
150 BusPendingActivation *pending_activation = data;
152 while (!dbus_timeout_handle (pending_activation->timeout))
153 _dbus_wait_for_memory ();
156 static BusPendingActivation *
157 bus_pending_activation_ref (BusPendingActivation *pending_activation)
159 _dbus_assert (pending_activation->refcount > 0);
160 pending_activation->refcount += 1;
162 return pending_activation;
166 bus_pending_activation_unref (BusPendingActivation *pending_activation)
170 if (pending_activation == NULL) /* hash table requires this */
173 _dbus_assert (pending_activation->refcount > 0);
174 pending_activation->refcount -= 1;
176 if (pending_activation->refcount > 0)
179 if (pending_activation->timeout_added)
181 _dbus_loop_remove_timeout (bus_context_get_loop (pending_activation->activation->context),
182 pending_activation->timeout,
183 handle_timeout_callback, pending_activation);
184 pending_activation->timeout_added = FALSE;
187 if (pending_activation->timeout)
188 _dbus_timeout_unref (pending_activation->timeout);
190 if (pending_activation->babysitter)
192 if (!_dbus_babysitter_set_watch_functions (pending_activation->babysitter,
194 pending_activation->babysitter,
196 _dbus_assert_not_reached ("setting watch functions to NULL failed");
198 _dbus_babysitter_unref (pending_activation->babysitter);
201 dbus_free (pending_activation->service_name);
202 dbus_free (pending_activation->exec);
203 dbus_free (pending_activation->systemd_service);
205 link = _dbus_list_get_first_link (&pending_activation->entries);
209 BusPendingActivationEntry *entry = link->data;
211 bus_pending_activation_entry_free (entry);
213 link = _dbus_list_get_next_link (&pending_activation->entries, link);
215 _dbus_list_clear (&pending_activation->entries);
217 pending_activation->activation->n_pending_activations -=
218 pending_activation->n_entries;
220 _dbus_assert (pending_activation->activation->n_pending_activations >= 0);
222 dbus_free (pending_activation);
225 static BusActivationEntry *
226 bus_activation_entry_ref (BusActivationEntry *entry)
228 _dbus_assert (entry->refcount > 0);
235 bus_activation_entry_unref (BusActivationEntry *entry)
237 if (entry == NULL) /* hash table requires this */
240 _dbus_assert (entry->refcount > 0);
243 if (entry->refcount > 0)
246 dbus_free (entry->name);
247 dbus_free (entry->exec);
248 dbus_free (entry->user);
249 dbus_free (entry->filename);
250 dbus_free (entry->systemd_service);
256 update_desktop_file_entry (BusActivation *activation,
257 BusServiceDirectory *s_dir,
258 DBusString *filename,
259 BusDesktopFile *desktop_file,
262 char *name, *exec, *user, *exec_tmp, *systemd_service;
263 BusActivationEntry *entry;
265 DBusString file_path;
268 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
275 systemd_service = NULL;
277 dbus_error_init (&tmp_error);
279 if (!_dbus_string_init (&file_path))
285 if (!_dbus_string_append (&file_path, s_dir->dir_c) ||
286 !_dbus_concat_dir_and_file (&file_path, filename))
292 if (!_dbus_stat (&file_path, &stat_buf, NULL))
294 dbus_set_error (error, DBUS_ERROR_FAILED,
295 "Can't stat the service file\n");
299 if (!bus_desktop_file_get_string (desktop_file,
300 DBUS_SERVICE_SECTION,
306 if (!bus_desktop_file_get_string (desktop_file,
307 DBUS_SERVICE_SECTION,
313 exec = _dbus_strdup (_dbus_replace_install_prefix (exec_tmp));
314 dbus_free (exec_tmp);
317 /* user is not _required_ unless we are using system activation */
318 if (!bus_desktop_file_get_string (desktop_file,
319 DBUS_SERVICE_SECTION,
323 _DBUS_ASSERT_ERROR_IS_SET (&tmp_error);
324 /* if we got OOM, then exit */
325 if (dbus_error_has_name (&tmp_error, DBUS_ERROR_NO_MEMORY))
327 dbus_move_error (&tmp_error, error);
332 /* if we have error because we didn't find anything then continue */
333 dbus_error_free (&tmp_error);
338 _DBUS_ASSERT_ERROR_IS_CLEAR (&tmp_error);
340 /* systemd service is never required */
341 if (!bus_desktop_file_get_string (desktop_file,
342 DBUS_SERVICE_SECTION,
343 DBUS_SERVICE_SYSTEMD_SERVICE,
344 &systemd_service, &tmp_error))
346 _DBUS_ASSERT_ERROR_IS_SET (&tmp_error);
347 /* if we got OOM, then exit */
348 if (dbus_error_has_name (&tmp_error, DBUS_ERROR_NO_MEMORY))
350 dbus_move_error (&tmp_error, error);
355 /* if we have error because we didn't find anything then continue */
356 dbus_error_free (&tmp_error);
357 dbus_free (systemd_service);
358 systemd_service = NULL;
362 _DBUS_ASSERT_ERROR_IS_CLEAR (&tmp_error);
364 entry = _dbus_hash_table_lookup_string (s_dir->entries,
365 _dbus_string_get_const_data (filename));
367 if (entry == NULL) /* New file */
369 /* FIXME we need a better-defined algorithm for which service file to
370 * pick than "whichever one is first in the directory listing"
372 if (_dbus_hash_table_lookup_string (activation->entries, name))
374 dbus_set_error (error, DBUS_ERROR_FAILED,
375 "Service %s already exists in activation entry list\n", name);
379 entry = dbus_new0 (BusActivationEntry, 1);
389 entry->systemd_service = systemd_service;
392 entry->s_dir = s_dir;
393 entry->filename = _dbus_strdup (_dbus_string_get_const_data (filename));
394 if (!entry->filename)
400 if (!_dbus_hash_table_insert_string (activation->entries, entry->name, bus_activation_entry_ref (entry)))
406 if (!_dbus_hash_table_insert_string (s_dir->entries, entry->filename, bus_activation_entry_ref (entry)))
408 /* Revert the insertion in the entries table */
409 _dbus_hash_table_remove_string (activation->entries, entry->name);
414 _dbus_verbose ("Added \"%s\" to list of services\n", entry->name);
416 else /* Just update the entry */
418 bus_activation_entry_ref (entry);
419 _dbus_hash_table_remove_string (activation->entries, entry->name);
421 if (_dbus_hash_table_lookup_string (activation->entries, name))
423 _dbus_verbose ("The new service name \"%s\" of service file \"%s\" already in cache, ignoring\n",
424 name, _dbus_string_get_const_data (&file_path));
428 dbus_free (entry->name);
429 dbus_free (entry->exec);
430 dbus_free (entry->user);
431 dbus_free (entry->systemd_service);
432 entry->systemd_service = systemd_service;
436 if (!_dbus_hash_table_insert_string (activation->entries,
437 entry->name, bus_activation_entry_ref(entry)))
440 /* Also remove path to entries hash since we want this in sync with
441 * the entries hash table */
442 _dbus_hash_table_remove_string (entry->s_dir->entries,
444 bus_activation_entry_unref (entry);
449 entry->mtime = stat_buf.mtime;
451 _dbus_string_free (&file_path);
452 bus_activation_entry_unref (entry);
460 dbus_free (systemd_service);
461 _dbus_string_free (&file_path);
464 bus_activation_entry_unref (entry);
470 check_service_file (BusActivation *activation,
471 BusActivationEntry *entry,
472 BusActivationEntry **updated_entry,
477 BusActivationEntry *tmp_entry;
478 DBusString file_path;
484 _dbus_string_init_const (&filename, entry->filename);
486 if (!_dbus_string_init (&file_path))
492 if (!_dbus_string_append (&file_path, entry->s_dir->dir_c) ||
493 !_dbus_concat_dir_and_file (&file_path, &filename))
500 if (!_dbus_stat (&file_path, &stat_buf, NULL))
502 _dbus_verbose ("****** Can't stat file \"%s\", removing from cache\n",
503 _dbus_string_get_const_data (&file_path));
505 _dbus_hash_table_remove_string (activation->entries, entry->name);
506 _dbus_hash_table_remove_string (entry->s_dir->entries, entry->filename);
514 if (stat_buf.mtime > entry->mtime)
516 BusDesktopFile *desktop_file;
519 dbus_error_init (&tmp_error);
521 desktop_file = bus_desktop_file_load (&file_path, &tmp_error);
522 if (desktop_file == NULL)
524 _dbus_verbose ("Could not load %s: %s\n",
525 _dbus_string_get_const_data (&file_path),
527 if (dbus_error_has_name (&tmp_error, DBUS_ERROR_NO_MEMORY))
529 dbus_move_error (&tmp_error, error);
533 dbus_error_free (&tmp_error);
538 /* @todo We can return OOM or a DBUS_ERROR_FAILED error
539 * Handle these both better
541 if (!update_desktop_file_entry (activation, entry->s_dir, &filename, desktop_file, &tmp_error))
543 bus_desktop_file_free (desktop_file);
544 if (dbus_error_has_name (&tmp_error, DBUS_ERROR_NO_MEMORY))
546 dbus_move_error (&tmp_error, error);
550 dbus_error_free (&tmp_error);
555 bus_desktop_file_free (desktop_file);
561 _dbus_string_free (&file_path);
563 if (updated_entry != NULL)
564 *updated_entry = tmp_entry;
569 /* warning: this doesn't fully "undo" itself on failure, i.e. doesn't strip
570 * hash entries it already added.
573 update_directory (BusActivation *activation,
574 BusServiceDirectory *s_dir,
578 DBusString dir, filename;
579 BusDesktopFile *desktop_file;
582 BusActivationEntry *entry;
583 DBusString full_path;
585 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
590 _dbus_string_init_const (&dir, s_dir->dir_c);
592 if (!_dbus_string_init (&filename))
598 if (!_dbus_string_init (&full_path))
601 _dbus_string_free (&filename);
607 /* from this point it's safe to "goto out" */
609 iter = _dbus_directory_open (&dir, error);
612 _dbus_verbose ("Failed to open directory %s: %s\n",
614 error ? error->message : "unknown");
618 /* Now read the files */
619 dbus_error_init (&tmp_error);
620 while (_dbus_directory_get_next_file (iter, &filename, &tmp_error))
622 _dbus_assert (!dbus_error_is_set (&tmp_error));
624 _dbus_string_set_length (&full_path, 0);
626 if (!_dbus_string_ends_with_c_str (&filename, ".service"))
628 _dbus_verbose ("Skipping non-.service file %s\n",
629 _dbus_string_get_const_data (&filename));
633 entry = _dbus_hash_table_lookup_string (s_dir->entries, _dbus_string_get_const_data (&filename));
634 if (entry) /* Already has this service file in the cache */
636 if (!check_service_file (activation, entry, NULL, error))
642 if (!_dbus_string_append (&full_path, s_dir->dir_c) ||
643 !_dbus_concat_dir_and_file (&full_path, &filename))
650 desktop_file = bus_desktop_file_load (&full_path, &tmp_error);
651 if (desktop_file == NULL)
653 _dbus_verbose ("Could not load %s: %s\n",
654 _dbus_string_get_const_data (&full_path),
657 if (dbus_error_has_name (&tmp_error, DBUS_ERROR_NO_MEMORY))
659 dbus_move_error (&tmp_error, error);
663 dbus_error_free (&tmp_error);
667 /* @todo We can return OOM or a DBUS_ERROR_FAILED error
668 * Handle these both better
670 if (!update_desktop_file_entry (activation, s_dir, &filename, desktop_file, &tmp_error))
672 bus_desktop_file_free (desktop_file);
675 _dbus_verbose ("Could not add %s to activation entry list: %s\n",
676 _dbus_string_get_const_data (&full_path), tmp_error.message);
678 if (dbus_error_has_name (&tmp_error, DBUS_ERROR_NO_MEMORY))
680 dbus_move_error (&tmp_error, error);
684 dbus_error_free (&tmp_error);
689 bus_desktop_file_free (desktop_file);
695 if (dbus_error_is_set (&tmp_error))
697 dbus_move_error (&tmp_error, error);
705 _DBUS_ASSERT_ERROR_IS_SET (error);
707 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
710 _dbus_directory_close (iter);
711 _dbus_string_free (&filename);
712 _dbus_string_free (&full_path);
718 populate_environment (BusActivation *activation)
724 dbus_bool_t retval = FALSE;
726 environment = _dbus_get_environment ();
728 if (environment == NULL)
731 if (!_dbus_string_init (&key))
733 dbus_free_string_array (environment);
737 if (!_dbus_string_init (&value))
739 _dbus_string_free (&key);
740 dbus_free_string_array (environment);
744 for (i = 0; environment[i] != NULL; i++)
746 if (!_dbus_string_append (&key, environment[i]))
749 if (_dbus_string_split_on_byte (&key, '=', &value))
751 char *hash_key, *hash_value;
753 if (!_dbus_string_steal_data (&key, &hash_key))
756 if (!_dbus_string_steal_data (&value, &hash_value))
759 if (!_dbus_hash_table_insert_string (activation->environment,
760 hash_key, hash_value))
763 _dbus_string_set_length (&key, 0);
764 _dbus_string_set_length (&value, 0);
767 if (environment[i] != NULL)
773 _dbus_string_free (&key);
774 _dbus_string_free (&value);
775 dbus_free_string_array (environment);
781 bus_activation_reload (BusActivation *activation,
782 const DBusString *address,
783 DBusList **directories,
789 if (activation->server_address != NULL)
790 dbus_free (activation->server_address);
791 if (!_dbus_string_copy_data (address, &activation->server_address))
797 if (activation->entries != NULL)
798 _dbus_hash_table_unref (activation->entries);
799 activation->entries = _dbus_hash_table_new (DBUS_HASH_STRING, NULL,
800 (DBusFreeFunction)bus_activation_entry_unref);
801 if (activation->entries == NULL)
807 if (activation->directories != NULL)
808 _dbus_hash_table_unref (activation->directories);
809 activation->directories = _dbus_hash_table_new (DBUS_HASH_STRING, NULL,
810 (DBusFreeFunction)bus_service_directory_unref);
812 if (activation->directories == NULL)
818 link = _dbus_list_get_first_link (directories);
821 BusServiceDirectory *s_dir;
823 dir = _dbus_strdup ((const char *) link->data);
830 s_dir = dbus_new0 (BusServiceDirectory, 1);
841 s_dir->entries = _dbus_hash_table_new (DBUS_HASH_STRING, NULL,
842 (DBusFreeFunction)bus_activation_entry_unref);
846 bus_service_directory_unref (s_dir);
851 if (!_dbus_hash_table_insert_string (activation->directories, s_dir->dir_c, s_dir))
853 bus_service_directory_unref (s_dir);
858 /* only fail on OOM, it is ok if we can't read the directory */
859 if (!update_directory (activation, s_dir, error))
861 if (dbus_error_has_name (error, DBUS_ERROR_NO_MEMORY))
864 dbus_error_free (error);
867 link = _dbus_list_get_next_link (directories, link);
876 bus_activation_new (BusContext *context,
877 const DBusString *address,
878 DBusList **directories,
881 BusActivation *activation;
885 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
887 activation = dbus_new0 (BusActivation, 1);
888 if (activation == NULL)
894 activation->refcount = 1;
895 activation->context = context;
896 activation->n_pending_activations = 0;
898 if (!bus_activation_reload (activation, address, directories, error))
901 /* Initialize this hash table once, we don't want to lose pending
902 * activations on reload. */
903 activation->pending_activations = _dbus_hash_table_new (DBUS_HASH_STRING, NULL,
904 (DBusFreeFunction)bus_pending_activation_unref);
906 if (activation->pending_activations == NULL)
912 activation->environment = _dbus_hash_table_new (DBUS_HASH_STRING,
913 (DBusFreeFunction) dbus_free,
914 (DBusFreeFunction) dbus_free);
916 if (activation->environment == NULL)
922 if (!populate_environment (activation))
931 bus_activation_unref (activation);
936 bus_activation_ref (BusActivation *activation)
938 _dbus_assert (activation->refcount > 0);
940 activation->refcount += 1;
946 bus_activation_unref (BusActivation *activation)
948 _dbus_assert (activation->refcount > 0);
950 activation->refcount -= 1;
952 if (activation->refcount > 0)
955 dbus_free (activation->server_address);
956 if (activation->entries)
957 _dbus_hash_table_unref (activation->entries);
958 if (activation->pending_activations)
959 _dbus_hash_table_unref (activation->pending_activations);
960 if (activation->directories)
961 _dbus_hash_table_unref (activation->directories);
962 if (activation->environment)
963 _dbus_hash_table_unref (activation->environment);
965 dbus_free (activation);
969 add_bus_environment (BusActivation *activation,
974 if (!bus_activation_set_environment_variable (activation,
975 "DBUS_STARTER_ADDRESS",
976 activation->server_address,
980 type = bus_context_get_type (activation->context);
983 if (!bus_activation_set_environment_variable (activation,
984 "DBUS_STARTER_BUS_TYPE", type,
988 if (strcmp (type, "session") == 0)
990 if (!bus_activation_set_environment_variable (activation,
991 "DBUS_SESSION_BUS_ADDRESS",
992 activation->server_address,
996 else if (strcmp (type, "system") == 0)
998 if (!bus_activation_set_environment_variable (activation,
999 "DBUS_SYSTEM_BUS_ADDRESS",
1000 activation->server_address,
1011 BusPendingActivation *pending_activation;
1012 DBusPreallocatedHash *hash_entry;
1013 } RestorePendingData;
1016 restore_pending (void *data)
1018 RestorePendingData *d = data;
1020 _dbus_assert (d->pending_activation != NULL);
1021 _dbus_assert (d->hash_entry != NULL);
1023 _dbus_verbose ("Restoring pending activation for service %s, has timeout = %d\n",
1024 d->pending_activation->service_name,
1025 d->pending_activation->timeout_added);
1027 _dbus_hash_table_insert_string_preallocated (d->pending_activation->activation->pending_activations,
1029 d->pending_activation->service_name, d->pending_activation);
1031 bus_pending_activation_ref (d->pending_activation);
1033 d->hash_entry = NULL;
1037 free_pending_restore_data (void *data)
1039 RestorePendingData *d = data;
1042 _dbus_hash_table_free_preallocated_entry (d->pending_activation->activation->pending_activations,
1045 bus_pending_activation_unref (d->pending_activation);
1051 add_restore_pending_to_transaction (BusTransaction *transaction,
1052 BusPendingActivation *pending_activation)
1054 RestorePendingData *d;
1056 d = dbus_new (RestorePendingData, 1);
1060 d->pending_activation = pending_activation;
1061 d->hash_entry = _dbus_hash_table_preallocate_entry (d->pending_activation->activation->pending_activations);
1063 bus_pending_activation_ref (d->pending_activation);
1065 if (d->hash_entry == NULL ||
1066 !bus_transaction_add_cancel_hook (transaction, restore_pending, d,
1067 free_pending_restore_data))
1069 free_pending_restore_data (d);
1073 _dbus_verbose ("Saved pending activation to be restored if the transaction fails\n");
1079 bus_activation_service_created (BusActivation *activation,
1080 const char *service_name,
1081 BusTransaction *transaction,
1084 BusPendingActivation *pending_activation;
1085 DBusMessage *message;
1088 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1090 /* Check if it's a pending activation */
1091 pending_activation = _dbus_hash_table_lookup_string (activation->pending_activations, service_name);
1093 if (!pending_activation)
1096 link = _dbus_list_get_first_link (&pending_activation->entries);
1097 while (link != NULL)
1099 BusPendingActivationEntry *entry = link->data;
1100 DBusList *next = _dbus_list_get_next_link (&pending_activation->entries, link);
1102 if (dbus_connection_get_is_connected (entry->connection))
1104 /* Only send activation replies to regular activation requests. */
1105 if (!entry->auto_activation)
1107 dbus_uint32_t result;
1109 message = dbus_message_new_method_return (entry->activation_message);
1112 BUS_SET_OOM (error);
1116 result = DBUS_START_REPLY_SUCCESS;
1118 if (!dbus_message_append_args (message,
1119 DBUS_TYPE_UINT32, &result,
1122 dbus_message_unref (message);
1123 BUS_SET_OOM (error);
1127 if (!bus_transaction_send_from_driver (transaction, entry->connection, message))
1129 dbus_message_unref (message);
1130 BUS_SET_OOM (error);
1134 dbus_message_unref (message);
1148 bus_activation_send_pending_auto_activation_messages (BusActivation *activation,
1149 BusService *service,
1150 BusTransaction *transaction,
1153 BusPendingActivation *pending_activation;
1156 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1158 /* Check if it's a pending activation */
1159 pending_activation = _dbus_hash_table_lookup_string (activation->pending_activations,
1160 bus_service_get_name (service));
1162 if (!pending_activation)
1165 link = _dbus_list_get_first_link (&pending_activation->entries);
1166 while (link != NULL)
1168 BusPendingActivationEntry *entry = link->data;
1169 DBusList *next = _dbus_list_get_next_link (&pending_activation->entries, link);
1171 if (entry->auto_activation && dbus_connection_get_is_connected (entry->connection))
1173 DBusConnection *addressed_recipient;
1175 addressed_recipient = bus_service_get_primary_owners_connection (service);
1177 /* Resume dispatching where we left off in bus_dispatch() */
1178 if (!bus_dispatch_matches (transaction,
1180 addressed_recipient,
1181 entry->activation_message, error))
1188 if (!add_restore_pending_to_transaction (transaction, pending_activation))
1190 _dbus_verbose ("Could not add cancel hook to transaction to revert removing pending activation\n");
1191 BUS_SET_OOM (error);
1195 _dbus_hash_table_remove_string (activation->pending_activations, bus_service_get_name (service));
1204 * FIXME @todo the error messages here would ideally be preallocated
1205 * so we don't need to allocate memory to send them.
1206 * Using the usual tactic, prealloc an OOM message, then
1207 * if we can't alloc the real error send the OOM error instead.
1210 try_send_activation_failure (BusPendingActivation *pending_activation,
1211 const DBusError *how)
1213 BusActivation *activation;
1215 BusTransaction *transaction;
1217 activation = pending_activation->activation;
1219 transaction = bus_transaction_new (activation->context);
1220 if (transaction == NULL)
1223 link = _dbus_list_get_first_link (&pending_activation->entries);
1224 while (link != NULL)
1226 BusPendingActivationEntry *entry = link->data;
1227 DBusList *next = _dbus_list_get_next_link (&pending_activation->entries, link);
1229 if (dbus_connection_get_is_connected (entry->connection))
1231 if (!bus_transaction_send_error_reply (transaction,
1234 entry->activation_message))
1241 bus_transaction_execute_and_free (transaction);
1247 bus_transaction_cancel_and_free (transaction);
1252 * Free the pending activation and send an error message to all the
1253 * connections that were waiting for it.
1256 pending_activation_failed (BusPendingActivation *pending_activation,
1257 const DBusError *how)
1259 /* FIXME use preallocated OOM messages instead of bus_wait_for_memory() */
1260 while (!try_send_activation_failure (pending_activation, how))
1261 _dbus_wait_for_memory ();
1263 /* Destroy this pending activation */
1264 _dbus_hash_table_remove_string (pending_activation->activation->pending_activations,
1265 pending_activation->service_name);
1269 * Depending on the exit code of the helper, set the error accordingly
1272 handle_servicehelper_exit_error (int exit_code,
1277 case BUS_SPAWN_EXIT_CODE_NO_MEMORY:
1278 dbus_set_error (error, DBUS_ERROR_NO_MEMORY,
1279 "Launcher could not run (out of memory)");
1281 case BUS_SPAWN_EXIT_CODE_SETUP_FAILED:
1282 dbus_set_error (error, DBUS_ERROR_SPAWN_SETUP_FAILED,
1283 "Failed to setup environment correctly");
1285 case BUS_SPAWN_EXIT_CODE_NAME_INVALID:
1286 dbus_set_error (error, DBUS_ERROR_SPAWN_SERVICE_INVALID,
1287 "Bus name is not valid or missing");
1289 case BUS_SPAWN_EXIT_CODE_SERVICE_NOT_FOUND:
1290 dbus_set_error (error, DBUS_ERROR_SPAWN_SERVICE_NOT_FOUND,
1291 "Bus name not found in system service directory");
1293 case BUS_SPAWN_EXIT_CODE_PERMISSIONS_INVALID:
1294 dbus_set_error (error, DBUS_ERROR_SPAWN_PERMISSIONS_INVALID,
1295 "The permission of the setuid helper is not correct");
1297 case BUS_SPAWN_EXIT_CODE_FILE_INVALID:
1298 dbus_set_error (error, DBUS_ERROR_SPAWN_PERMISSIONS_INVALID,
1299 "The service file is incorrect or does not have all required attributes");
1301 case BUS_SPAWN_EXIT_CODE_EXEC_FAILED:
1302 dbus_set_error (error, DBUS_ERROR_SPAWN_EXEC_FAILED,
1303 "Cannot launch daemon, file not found or permissions invalid");
1305 case BUS_SPAWN_EXIT_CODE_INVALID_ARGS:
1306 dbus_set_error (error, DBUS_ERROR_INVALID_ARGS,
1307 "Invalid arguments to command line");
1309 case BUS_SPAWN_EXIT_CODE_CHILD_SIGNALED:
1310 dbus_set_error (error, DBUS_ERROR_SPAWN_CHILD_SIGNALED,
1311 "Launched child was signaled, it probably crashed");
1314 dbus_set_error (error, DBUS_ERROR_SPAWN_CHILD_EXITED,
1315 "Launch helper exited with unknown return code %i", exit_code);
1321 babysitter_watch_callback (DBusWatch *watch,
1322 unsigned int condition,
1325 BusPendingActivation *pending_activation = data;
1327 DBusBabysitter *babysitter;
1328 dbus_bool_t uses_servicehelper;
1330 babysitter = pending_activation->babysitter;
1332 _dbus_babysitter_ref (babysitter);
1334 retval = dbus_watch_handle (watch, condition);
1336 /* There are two major cases here; are we the system bus or the session? Here this
1337 * is distinguished by whether or not we use a setuid helper launcher. With the launch helper,
1338 * some process exit codes are meaningful, processed by handle_servicehelper_exit_error.
1340 * In both cases though, just ignore when a process exits with status 0; it's possible for
1341 * a program to (misguidedly) "daemonize", and that appears to us as an exit. This closes a race
1342 * condition between this code and the child process claiming the bus name.
1344 uses_servicehelper = bus_context_get_servicehelper (pending_activation->activation->context) != NULL;
1346 /* FIXME this is broken in the same way that
1347 * connection watches used to be; there should be
1348 * a separate callback for status change, instead
1349 * of doing "if we handled a watch status might
1352 * Fixing this lets us move dbus_watch_handle
1353 * calls into dbus-mainloop.c
1355 if (_dbus_babysitter_get_child_exited (babysitter))
1359 dbus_bool_t activation_failed;
1362 dbus_error_init (&error);
1364 _dbus_babysitter_set_child_exit_error (babysitter, &error);
1366 /* Explicitly check for SPAWN_CHILD_EXITED to avoid overwriting an
1368 if (dbus_error_has_name (&error, DBUS_ERROR_SPAWN_CHILD_EXITED)
1369 && _dbus_babysitter_get_child_exit_status (babysitter, &exit_code))
1371 activation_failed = exit_code != 0;
1373 dbus_error_free(&error);
1375 if (activation_failed)
1377 if (uses_servicehelper)
1378 handle_servicehelper_exit_error (exit_code, &error);
1380 _dbus_babysitter_set_child_exit_error (babysitter, &error);
1385 activation_failed = TRUE;
1388 if (activation_failed)
1390 /* Destroy all pending activations with the same exec */
1391 _dbus_hash_iter_init (pending_activation->activation->pending_activations,
1393 while (_dbus_hash_iter_next (&iter))
1395 BusPendingActivation *p = _dbus_hash_iter_get_value (&iter);
1397 if (p != pending_activation && strcmp (p->exec, pending_activation->exec) == 0)
1398 pending_activation_failed (p, &error);
1401 /* Destroys the pending activation */
1402 pending_activation_failed (pending_activation, &error);
1404 dbus_error_free (&error);
1408 _dbus_babysitter_unref (babysitter);
1414 add_babysitter_watch (DBusWatch *watch,
1417 BusPendingActivation *pending_activation = data;
1419 return _dbus_loop_add_watch (bus_context_get_loop (pending_activation->activation->context),
1420 watch, babysitter_watch_callback, pending_activation,
1425 remove_babysitter_watch (DBusWatch *watch,
1428 BusPendingActivation *pending_activation = data;
1430 _dbus_loop_remove_watch (bus_context_get_loop (pending_activation->activation->context),
1431 watch, babysitter_watch_callback, pending_activation);
1435 pending_activation_timed_out (void *data)
1437 BusPendingActivation *pending_activation = data;
1440 /* Kill the spawned process, since it sucks
1441 * (not sure this is what we want to do, but
1442 * may as well try it for now)
1444 if (pending_activation->babysitter)
1445 _dbus_babysitter_kill_child (pending_activation->babysitter);
1447 dbus_error_init (&error);
1449 dbus_set_error (&error, DBUS_ERROR_TIMED_OUT,
1450 "Activation of %s timed out",
1451 pending_activation->service_name);
1453 pending_activation_failed (pending_activation, &error);
1455 dbus_error_free (&error);
1461 cancel_pending (void *data)
1463 BusPendingActivation *pending_activation = data;
1465 _dbus_verbose ("Canceling pending activation of %s\n",
1466 pending_activation->service_name);
1468 if (pending_activation->babysitter)
1469 _dbus_babysitter_kill_child (pending_activation->babysitter);
1471 _dbus_hash_table_remove_string (pending_activation->activation->pending_activations,
1472 pending_activation->service_name);
1476 free_pending_cancel_data (void *data)
1478 BusPendingActivation *pending_activation = data;
1480 bus_pending_activation_unref (pending_activation);
1484 add_cancel_pending_to_transaction (BusTransaction *transaction,
1485 BusPendingActivation *pending_activation)
1487 if (!bus_transaction_add_cancel_hook (transaction, cancel_pending,
1489 free_pending_cancel_data))
1492 bus_pending_activation_ref (pending_activation);
1494 _dbus_verbose ("Saved pending activation to be canceled if the transaction fails\n");
1500 update_service_cache (BusActivation *activation, DBusError *error)
1504 _dbus_hash_iter_init (activation->directories, &iter);
1505 while (_dbus_hash_iter_next (&iter))
1507 DBusError tmp_error;
1508 BusServiceDirectory *s_dir;
1510 s_dir = _dbus_hash_iter_get_value (&iter);
1512 dbus_error_init (&tmp_error);
1513 if (!update_directory (activation, s_dir, &tmp_error))
1515 if (dbus_error_has_name (&tmp_error, DBUS_ERROR_NO_MEMORY))
1517 dbus_move_error (&tmp_error, error);
1521 dbus_error_free (&tmp_error);
1529 static BusActivationEntry *
1530 activation_find_entry (BusActivation *activation,
1531 const char *service_name,
1534 BusActivationEntry *entry;
1536 entry = _dbus_hash_table_lookup_string (activation->entries, service_name);
1539 if (!update_service_cache (activation, error))
1542 entry = _dbus_hash_table_lookup_string (activation->entries,
1547 BusActivationEntry *updated_entry;
1549 if (!check_service_file (activation, entry, &updated_entry, error))
1552 entry = updated_entry;
1557 dbus_set_error (error, DBUS_ERROR_SERVICE_UNKNOWN,
1558 "The name %s was not provided by any .service files",
1567 bus_activation_get_environment (BusActivation *activation)
1574 length = _dbus_hash_table_get_n_entries (activation->environment);
1576 environment = dbus_new0 (char *, length + 1);
1578 if (environment == NULL)
1582 _dbus_hash_iter_init (activation->environment, &iter);
1584 if (!_dbus_string_init (&entry))
1586 dbus_free_string_array (environment);
1590 while (_dbus_hash_iter_next (&iter))
1592 const char *key, *value;
1594 key = (const char *) _dbus_hash_iter_get_string_key (&iter);
1595 value = (const char *) _dbus_hash_iter_get_value (&iter);
1597 if (!_dbus_string_append_printf (&entry, "%s=%s", key, value))
1600 if (!_dbus_string_steal_data (&entry, environment + i))
1605 _dbus_string_free (&entry);
1609 dbus_free_string_array (environment);
1617 bus_activation_set_environment_variable (BusActivation *activation,
1629 hash_key = _dbus_strdup (key);
1631 if (hash_key == NULL)
1634 hash_value = _dbus_strdup (value);
1636 if (hash_value == NULL)
1639 if (!_dbus_hash_table_insert_string (activation->environment,
1640 hash_key, hash_value))
1645 if (retval == FALSE)
1647 dbus_free (hash_key);
1648 dbus_free (hash_value);
1649 BUS_SET_OOM (error);
1656 bus_activation_activate_service (BusActivation *activation,
1657 DBusConnection *connection,
1658 BusTransaction *transaction,
1659 dbus_bool_t auto_activation,
1660 DBusMessage *activation_message,
1661 const char *service_name,
1664 BusActivationEntry *entry;
1665 BusPendingActivation *pending_activation;
1666 BusPendingActivationEntry *pending_activation_entry;
1667 DBusMessage *message;
1668 DBusString service_str;
1669 const char *servicehelper;
1675 dbus_bool_t activated;
1680 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1682 if (activation->n_pending_activations >=
1683 bus_context_get_max_pending_activations (activation->context))
1685 dbus_set_error (error, DBUS_ERROR_LIMITS_EXCEEDED,
1686 "The maximum number of pending activations has been reached, activation of %s failed",
1691 entry = activation_find_entry (activation, service_name, error);
1695 /* Bypass the registry lookup if we're auto-activating, bus_dispatch would not
1696 * call us if the service is already active.
1698 if (!auto_activation)
1700 /* Check if the service is active */
1701 _dbus_string_init_const (&service_str, service_name);
1702 if (bus_registry_lookup (bus_context_get_registry (activation->context), &service_str) != NULL)
1704 dbus_uint32_t result;
1706 _dbus_verbose ("Service \"%s\" is already active\n", service_name);
1708 message = dbus_message_new_method_return (activation_message);
1712 _dbus_verbose ("No memory to create reply to activate message\n");
1713 BUS_SET_OOM (error);
1717 result = DBUS_START_REPLY_ALREADY_RUNNING;
1719 if (!dbus_message_append_args (message,
1720 DBUS_TYPE_UINT32, &result,
1723 _dbus_verbose ("No memory to set args of reply to activate message\n");
1724 BUS_SET_OOM (error);
1725 dbus_message_unref (message);
1729 retval = bus_transaction_send_from_driver (transaction, connection, message);
1730 dbus_message_unref (message);
1733 _dbus_verbose ("Failed to send reply\n");
1734 BUS_SET_OOM (error);
1741 pending_activation_entry = dbus_new0 (BusPendingActivationEntry, 1);
1742 if (!pending_activation_entry)
1744 _dbus_verbose ("Failed to create pending activation entry\n");
1745 BUS_SET_OOM (error);
1749 pending_activation_entry->auto_activation = auto_activation;
1751 pending_activation_entry->activation_message = activation_message;
1752 dbus_message_ref (activation_message);
1753 pending_activation_entry->connection = connection;
1754 dbus_connection_ref (connection);
1756 /* Check if the service is being activated */
1757 pending_activation = _dbus_hash_table_lookup_string (activation->pending_activations, service_name);
1758 if (pending_activation)
1760 if (!_dbus_list_append (&pending_activation->entries, pending_activation_entry))
1762 _dbus_verbose ("Failed to append a new entry to pending activation\n");
1764 BUS_SET_OOM (error);
1765 bus_pending_activation_entry_free (pending_activation_entry);
1769 pending_activation->n_entries += 1;
1770 pending_activation->activation->n_pending_activations += 1;
1774 pending_activation = dbus_new0 (BusPendingActivation, 1);
1775 if (!pending_activation)
1777 _dbus_verbose ("Failed to create pending activation\n");
1779 BUS_SET_OOM (error);
1780 bus_pending_activation_entry_free (pending_activation_entry);
1784 pending_activation->activation = activation;
1785 pending_activation->refcount = 1;
1787 pending_activation->service_name = _dbus_strdup (service_name);
1788 if (!pending_activation->service_name)
1790 _dbus_verbose ("Failed to copy service name for pending activation\n");
1792 BUS_SET_OOM (error);
1793 bus_pending_activation_unref (pending_activation);
1794 bus_pending_activation_entry_free (pending_activation_entry);
1798 pending_activation->exec = _dbus_strdup (entry->exec);
1799 if (!pending_activation->exec)
1801 _dbus_verbose ("Failed to copy service exec for pending activation\n");
1802 BUS_SET_OOM (error);
1803 bus_pending_activation_unref (pending_activation);
1804 bus_pending_activation_entry_free (pending_activation_entry);
1808 if (entry->systemd_service)
1810 pending_activation->systemd_service = _dbus_strdup (entry->systemd_service);
1811 if (!pending_activation->systemd_service)
1813 _dbus_verbose ("Failed to copy systemd service for pending activation\n");
1814 BUS_SET_OOM (error);
1815 bus_pending_activation_unref (pending_activation);
1816 bus_pending_activation_entry_free (pending_activation_entry);
1821 pending_activation->timeout =
1822 _dbus_timeout_new (bus_context_get_activation_timeout (activation->context),
1823 pending_activation_timed_out,
1826 if (!pending_activation->timeout)
1828 _dbus_verbose ("Failed to create timeout for pending activation\n");
1830 BUS_SET_OOM (error);
1831 bus_pending_activation_unref (pending_activation);
1832 bus_pending_activation_entry_free (pending_activation_entry);
1836 if (!_dbus_loop_add_timeout (bus_context_get_loop (activation->context),
1837 pending_activation->timeout,
1838 handle_timeout_callback,
1842 _dbus_verbose ("Failed to add timeout for pending activation\n");
1844 BUS_SET_OOM (error);
1845 bus_pending_activation_unref (pending_activation);
1846 bus_pending_activation_entry_free (pending_activation_entry);
1850 pending_activation->timeout_added = TRUE;
1852 if (!_dbus_list_append (&pending_activation->entries, pending_activation_entry))
1854 _dbus_verbose ("Failed to add entry to just-created pending activation\n");
1856 BUS_SET_OOM (error);
1857 bus_pending_activation_unref (pending_activation);
1858 bus_pending_activation_entry_free (pending_activation_entry);
1862 pending_activation->n_entries += 1;
1863 pending_activation->activation->n_pending_activations += 1;
1866 _dbus_hash_iter_init (activation->pending_activations, &iter);
1867 while (_dbus_hash_iter_next (&iter))
1869 BusPendingActivation *p = _dbus_hash_iter_get_value (&iter);
1871 if (strcmp (p->exec, entry->exec) == 0)
1878 if (!_dbus_hash_table_insert_string (activation->pending_activations,
1879 pending_activation->service_name,
1880 pending_activation))
1882 _dbus_verbose ("Failed to put pending activation in hash table\n");
1884 BUS_SET_OOM (error);
1885 bus_pending_activation_unref (pending_activation);
1890 if (!add_cancel_pending_to_transaction (transaction, pending_activation))
1892 _dbus_verbose ("Failed to add pending activation cancel hook to transaction\n");
1893 BUS_SET_OOM (error);
1894 _dbus_hash_table_remove_string (activation->pending_activations,
1895 pending_activation->service_name);
1903 if (bus_context_get_systemd_activation (activation->context))
1905 if (strcmp (service_name, "org.freedesktop.systemd1") == 0)
1906 /* systemd itself is missing apparently. That can happen
1907 only during early startup. Let's just wait until systemd
1908 connects to us and do nothing. */
1911 if (entry->systemd_service)
1913 BusTransaction *activation_transaction;
1914 DBusString service_string;
1915 BusService *service;
1916 BusRegistry *registry;
1918 /* OK, we have a systemd service configured for this entry,
1919 hence let's enqueue an activation request message. This
1920 is implemented as a directed signal, not a method call,
1921 for three reasons: 1) we don't expect a response on
1922 success, where we just expect a name appearing on the
1923 bus; 2) at this time the systemd service might not yet
1924 have connected, so we wouldn't know the message serial at
1925 this point to set up a pending call; 3) it is ugly if the
1926 bus suddenly becomes the caller of a remote method. */
1928 message = dbus_message_new_signal (DBUS_PATH_DBUS,
1929 "org.freedesktop.systemd1.Activator",
1930 "ActivationRequest");
1933 _dbus_verbose ("No memory to create activation message\n");
1934 BUS_SET_OOM (error);
1938 if (!dbus_message_set_sender (message, DBUS_SERVICE_DBUS) ||
1939 !dbus_message_set_destination (message, "org.freedesktop.systemd1") ||
1940 !dbus_message_append_args (message,
1941 DBUS_TYPE_STRING, &entry->systemd_service,
1944 _dbus_verbose ("No memory to set args of activation message\n");
1945 dbus_message_unref (message);
1946 BUS_SET_OOM (error);
1950 /* Create our transaction */
1951 activation_transaction = bus_transaction_new (activation->context);
1952 if (activation_transaction == NULL)
1954 _dbus_verbose ("No memory to create activation transaction\n");
1955 dbus_message_unref (message);
1956 BUS_SET_OOM (error);
1960 /* Check whether systemd is already connected */
1961 registry = bus_connection_get_registry (connection);
1962 _dbus_string_init_const (&service_string, "org.freedesktop.systemd1");
1963 service = bus_registry_lookup (registry, &service_string);
1965 if (service != NULL)
1966 /* Wonderful, systemd is connected, let's just send the msg */
1967 retval = bus_dispatch_matches (activation_transaction, NULL, bus_service_get_primary_owners_connection (service),
1970 /* systemd is not around, let's "activate" it. */
1971 retval = bus_activation_activate_service (activation, connection, activation_transaction, TRUE,
1972 message, "org.freedesktop.systemd1", error);
1974 dbus_message_unref (message);
1978 _DBUS_ASSERT_ERROR_IS_SET (error);
1979 _dbus_verbose ("failed to send activation message: %s\n", error->name);
1980 bus_transaction_cancel_and_free (activation_transaction);
1984 bus_transaction_execute_and_free (activation_transaction);
1988 /* OK, we have no configured systemd service, hence let's
1989 proceed with traditional activation. */
1992 /* use command as system and session different */
1993 if (!_dbus_string_init (&command))
1995 BUS_SET_OOM (error);
1999 /* does the bus use a helper? */
2000 servicehelper = bus_context_get_servicehelper (activation->context);
2001 if (servicehelper != NULL)
2003 if (entry->user == NULL)
2005 _dbus_string_free (&command);
2006 dbus_set_error (error, DBUS_ERROR_SPAWN_FILE_INVALID,
2007 "Cannot do system-bus activation with no user\n");
2011 /* join the helper path and the service name */
2012 if (!_dbus_string_append (&command, servicehelper))
2014 _dbus_string_free (&command);
2015 BUS_SET_OOM (error);
2018 if (!_dbus_string_append (&command, " "))
2020 _dbus_string_free (&command);
2021 BUS_SET_OOM (error);
2024 if (!_dbus_string_append (&command, service_name))
2026 _dbus_string_free (&command);
2027 BUS_SET_OOM (error);
2033 /* the bus does not use a helper, so we can append arguments with the exec line */
2034 if (!_dbus_string_append (&command, entry->exec))
2036 _dbus_string_free (&command);
2037 BUS_SET_OOM (error);
2042 /* convert command into arguments */
2043 if (!_dbus_shell_parse_argv (_dbus_string_get_const_data (&command), &argc, &argv, error))
2045 _dbus_verbose ("Failed to parse command line: %s\n", entry->exec);
2046 _DBUS_ASSERT_ERROR_IS_SET (error);
2048 _dbus_hash_table_remove_string (activation->pending_activations,
2049 pending_activation->service_name);
2051 _dbus_string_free (&command);
2054 _dbus_string_free (&command);
2056 if (!add_bus_environment (activation, error))
2058 _DBUS_ASSERT_ERROR_IS_SET (error);
2059 dbus_free_string_array (argv);
2063 envp = bus_activation_get_environment (activation);
2067 BUS_SET_OOM (error);
2068 dbus_free_string_array (argv);
2072 _dbus_verbose ("Spawning %s ...\n", argv[0]);
2073 if (!_dbus_spawn_async_with_babysitter (&pending_activation->babysitter, argv,
2078 _dbus_verbose ("Failed to spawn child\n");
2079 _DBUS_ASSERT_ERROR_IS_SET (error);
2080 dbus_free_string_array (argv);
2081 dbus_free_string_array (envp);
2086 dbus_free_string_array (argv);
2089 _dbus_assert (pending_activation->babysitter != NULL);
2091 if (!_dbus_babysitter_set_watch_functions (pending_activation->babysitter,
2092 add_babysitter_watch,
2093 remove_babysitter_watch,
2098 BUS_SET_OOM (error);
2099 _dbus_verbose ("Failed to set babysitter watch functions\n");
2107 bus_activation_list_services (BusActivation *activation,
2115 len = _dbus_hash_table_get_n_entries (activation->entries);
2116 retval = dbus_new (char *, len + 1);
2121 _dbus_hash_iter_init (activation->entries, &iter);
2123 while (_dbus_hash_iter_next (&iter))
2125 BusActivationEntry *entry = _dbus_hash_iter_get_value (&iter);
2127 retval[i] = _dbus_strdup (entry->name);
2128 if (retval[i] == NULL)
2143 for (j = 0; j < i; j++)
2144 dbus_free (retval[i]);
2151 dbus_activation_systemd_failure (BusActivation *activation,
2152 DBusMessage *message)
2155 const char *code, *str, *unit = NULL;
2157 dbus_error_init(&error);
2159 /* This is called whenever the systemd activator sent us a
2160 response. We'll invalidate all pending activations that match the
2163 if (dbus_message_get_args (message, &error,
2164 DBUS_TYPE_STRING, &unit,
2165 DBUS_TYPE_STRING, &code,
2166 DBUS_TYPE_STRING, &str,
2168 dbus_set_error(&error, code, str);
2174 _dbus_hash_iter_init (activation->pending_activations,
2177 while (_dbus_hash_iter_next (&iter))
2179 BusPendingActivation *p = _dbus_hash_iter_get_value (&iter);
2181 if (p->systemd_service && strcmp (p->systemd_service, unit) == 0)
2182 pending_activation_failed(p, &error);
2186 dbus_error_free(&error);
2191 #ifdef DBUS_BUILD_TESTS
2195 #define SERVICE_NAME_1 "MyService1"
2196 #define SERVICE_NAME_2 "MyService2"
2197 #define SERVICE_NAME_3 "MyService3"
2199 #define SERVICE_FILE_1 "service-1.service"
2200 #define SERVICE_FILE_2 "service-2.service"
2201 #define SERVICE_FILE_3 "service-3.service"
2204 test_create_service_file (DBusString *dir,
2205 const char *filename,
2209 DBusString file_name, full_path;
2211 dbus_bool_t ret_val;
2214 _dbus_string_init_const (&file_name, filename);
2216 if (!_dbus_string_init (&full_path))
2219 if (!_dbus_string_append (&full_path, _dbus_string_get_const_data (dir)) ||
2220 !_dbus_concat_dir_and_file (&full_path, &file_name))
2226 file = fopen (_dbus_string_get_const_data (&full_path), "w");
2233 fprintf (file, "[D-BUS Service]\nName=%s\nExec=%s\n", name, exec);
2237 _dbus_string_free (&full_path);
2242 test_remove_service_file (DBusString *dir, const char *filename)
2244 DBusString file_name, full_path;
2245 dbus_bool_t ret_val;
2249 _dbus_string_init_const (&file_name, filename);
2251 if (!_dbus_string_init (&full_path))
2254 if (!_dbus_string_append (&full_path, _dbus_string_get_const_data (dir)) ||
2255 !_dbus_concat_dir_and_file (&full_path, &file_name))
2261 if (!_dbus_delete_file (&full_path, NULL))
2268 _dbus_string_free (&full_path);
2273 test_remove_directory (DBusString *dir)
2276 DBusString filename, full_path;
2277 dbus_bool_t ret_val;
2281 if (!_dbus_string_init (&filename))
2284 if (!_dbus_string_init (&full_path))
2286 _dbus_string_free (&filename);
2290 iter = _dbus_directory_open (dir, NULL);
2297 while (_dbus_directory_get_next_file (iter, &filename, NULL))
2299 if (!test_remove_service_file (dir, _dbus_string_get_const_data (&filename)))
2305 _dbus_directory_close (iter);
2307 if (!_dbus_delete_directory (dir, NULL))
2314 _dbus_string_free (&filename);
2315 _dbus_string_free (&full_path);
2321 init_service_reload_test (DBusString *dir)
2325 if (!_dbus_stat (dir, &stat_buf, NULL))
2327 if (!_dbus_create_directory (dir, NULL))
2332 if (!test_remove_directory (dir))
2335 if (!_dbus_create_directory (dir, NULL))
2339 /* Create one initial file */
2340 if (!test_create_service_file (dir, SERVICE_FILE_1, SERVICE_NAME_1, "exec-1"))
2347 cleanup_service_reload_test (DBusString *dir)
2349 if (!test_remove_directory (dir))
2357 BusActivation *activation;
2358 const char *service_name;
2359 dbus_bool_t expecting_find;
2363 check_func (void *data)
2366 BusActivationEntry *entry;
2368 dbus_bool_t ret_val;
2373 dbus_error_init (&error);
2375 entry = activation_find_entry (d->activation, d->service_name, &error);
2378 if (dbus_error_has_name (&error, DBUS_ERROR_NO_MEMORY))
2384 if (d->expecting_find)
2388 dbus_error_free (&error);
2392 if (!d->expecting_find)
2400 do_test (const char *description, dbus_bool_t oom_test, CheckData *data)
2405 err = !_dbus_test_oom_handling (description, check_func, data);
2407 err = !check_func (data);
2410 _dbus_assert_not_reached ("Test failed");
2416 do_service_reload_test (DBusString *dir, dbus_bool_t oom_test)
2418 BusActivation *activation;
2420 DBusList *directories;
2424 _dbus_string_init_const (&address, "");
2426 if (!_dbus_list_append (&directories, _dbus_string_get_data (dir)))
2429 activation = bus_activation_new (NULL, &address, &directories, NULL);
2433 d.activation = activation;
2435 /* Check for existing service file */
2436 d.expecting_find = TRUE;
2437 d.service_name = SERVICE_NAME_1;
2439 if (!do_test ("Existing service file", oom_test, &d))
2442 /* Check for non-existing service file */
2443 d.expecting_find = FALSE;
2444 d.service_name = SERVICE_NAME_3;
2446 if (!do_test ("Nonexisting service file", oom_test, &d))
2449 /* Check for added service file */
2450 if (!test_create_service_file (dir, SERVICE_FILE_2, SERVICE_NAME_2, "exec-2"))
2453 d.expecting_find = TRUE;
2454 d.service_name = SERVICE_NAME_2;
2456 if (!do_test ("Added service file", oom_test, &d))
2459 /* Check for removed service file */
2460 if (!test_remove_service_file (dir, SERVICE_FILE_2))
2463 d.expecting_find = FALSE;
2464 d.service_name = SERVICE_FILE_2;
2466 if (!do_test ("Removed service file", oom_test, &d))
2469 /* Check for updated service file */
2471 _dbus_sleep_milliseconds (1000); /* Sleep a second to make sure the mtime is updated */
2473 if (!test_create_service_file (dir, SERVICE_FILE_1, SERVICE_NAME_3, "exec-3"))
2476 d.expecting_find = TRUE;
2477 d.service_name = SERVICE_NAME_3;
2479 if (!do_test ("Updated service file, part 1", oom_test, &d))
2482 d.expecting_find = FALSE;
2483 d.service_name = SERVICE_NAME_1;
2485 if (!do_test ("Updated service file, part 2", oom_test, &d))
2488 bus_activation_unref (activation);
2489 _dbus_list_clear (&directories);
2495 bus_activation_service_reload_test (const DBusString *test_data_dir)
2497 DBusString directory;
2499 if (!_dbus_string_init (&directory))
2502 if (!_dbus_string_append (&directory, _dbus_get_tmpdir()))
2505 if (!_dbus_string_append (&directory, "/dbus-reload-test-") ||
2506 !_dbus_generate_random_ascii (&directory, 6))
2511 /* Do normal tests */
2512 if (!init_service_reload_test (&directory))
2513 _dbus_assert_not_reached ("could not initiate service reload test");
2515 if (!do_service_reload_test (&directory, FALSE))
2519 if (!init_service_reload_test (&directory))
2520 _dbus_assert_not_reached ("could not initiate service reload test");
2522 if (!do_service_reload_test (&directory, TRUE))
2525 /* Cleanup test directory */
2526 if (!cleanup_service_reload_test (&directory))
2529 _dbus_string_free (&directory);
2534 #endif /* DBUS_BUILD_TESTS */