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);
146 static BusPendingActivation *
147 bus_pending_activation_ref (BusPendingActivation *pending_activation)
149 _dbus_assert (pending_activation->refcount > 0);
150 pending_activation->refcount += 1;
152 return pending_activation;
156 bus_pending_activation_unref (BusPendingActivation *pending_activation)
160 if (pending_activation == NULL) /* hash table requires this */
163 _dbus_assert (pending_activation->refcount > 0);
164 pending_activation->refcount -= 1;
166 if (pending_activation->refcount > 0)
169 if (pending_activation->timeout_added)
171 _dbus_loop_remove_timeout (bus_context_get_loop (pending_activation->activation->context),
172 pending_activation->timeout);
173 pending_activation->timeout_added = FALSE;
176 if (pending_activation->timeout)
177 _dbus_timeout_unref (pending_activation->timeout);
179 if (pending_activation->babysitter)
181 if (!_dbus_babysitter_set_watch_functions (pending_activation->babysitter,
183 pending_activation->babysitter,
185 _dbus_assert_not_reached ("setting watch functions to NULL failed");
187 _dbus_babysitter_unref (pending_activation->babysitter);
190 dbus_free (pending_activation->service_name);
191 dbus_free (pending_activation->exec);
192 dbus_free (pending_activation->systemd_service);
194 link = _dbus_list_get_first_link (&pending_activation->entries);
198 BusPendingActivationEntry *entry = link->data;
200 bus_pending_activation_entry_free (entry);
202 link = _dbus_list_get_next_link (&pending_activation->entries, link);
204 _dbus_list_clear (&pending_activation->entries);
206 pending_activation->activation->n_pending_activations -=
207 pending_activation->n_entries;
209 _dbus_assert (pending_activation->activation->n_pending_activations >= 0);
211 dbus_free (pending_activation);
214 static BusActivationEntry *
215 bus_activation_entry_ref (BusActivationEntry *entry)
217 _dbus_assert (entry->refcount > 0);
224 bus_activation_entry_unref (BusActivationEntry *entry)
226 if (entry == NULL) /* hash table requires this */
229 _dbus_assert (entry->refcount > 0);
232 if (entry->refcount > 0)
235 dbus_free (entry->name);
236 dbus_free (entry->exec);
237 dbus_free (entry->user);
238 dbus_free (entry->filename);
239 dbus_free (entry->systemd_service);
245 update_desktop_file_entry (BusActivation *activation,
246 BusServiceDirectory *s_dir,
247 DBusString *filename,
248 BusDesktopFile *desktop_file,
251 char *name, *exec, *user, *exec_tmp, *systemd_service;
252 BusActivationEntry *entry;
254 DBusString file_path;
258 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
265 systemd_service = NULL;
267 dbus_error_init (&tmp_error);
269 if (!_dbus_string_init (&file_path))
275 if (!_dbus_string_append (&file_path, s_dir->dir_c) ||
276 !_dbus_concat_dir_and_file (&file_path, filename))
282 if (!_dbus_stat (&file_path, &stat_buf, NULL))
284 dbus_set_error (error, DBUS_ERROR_FAILED,
285 "Can't stat the service file\n");
289 if (!bus_desktop_file_get_string (desktop_file,
290 DBUS_SERVICE_SECTION,
296 if (!bus_desktop_file_get_string (desktop_file,
297 DBUS_SERVICE_SECTION,
303 exec = _dbus_strdup (_dbus_replace_install_prefix (exec_tmp));
304 dbus_free (exec_tmp);
307 /* user is not _required_ unless we are using system activation */
308 if (!bus_desktop_file_get_string (desktop_file,
309 DBUS_SERVICE_SECTION,
313 _DBUS_ASSERT_ERROR_IS_SET (&tmp_error);
314 /* if we got OOM, then exit */
315 if (dbus_error_has_name (&tmp_error, DBUS_ERROR_NO_MEMORY))
317 dbus_move_error (&tmp_error, error);
322 /* if we have error because we didn't find anything then continue */
323 dbus_error_free (&tmp_error);
328 _DBUS_ASSERT_ERROR_IS_CLEAR (&tmp_error);
330 /* systemd service is never required */
331 if (!bus_desktop_file_get_string (desktop_file,
332 DBUS_SERVICE_SECTION,
333 DBUS_SERVICE_SYSTEMD_SERVICE,
334 &systemd_service, &tmp_error))
336 _DBUS_ASSERT_ERROR_IS_SET (&tmp_error);
337 /* if we got OOM, then exit */
338 if (dbus_error_has_name (&tmp_error, DBUS_ERROR_NO_MEMORY))
340 dbus_move_error (&tmp_error, error);
345 /* if we have error because we didn't find anything then continue */
346 dbus_error_free (&tmp_error);
347 dbus_free (systemd_service);
348 systemd_service = NULL;
352 _DBUS_ASSERT_ERROR_IS_CLEAR (&tmp_error);
354 entry = _dbus_hash_table_lookup_string (s_dir->entries,
355 _dbus_string_get_const_data (filename));
357 if (entry == NULL) /* New file */
359 /* FIXME we need a better-defined algorithm for which service file to
360 * pick than "whichever one is first in the directory listing"
362 if (_dbus_hash_table_lookup_string (activation->entries, name))
364 dbus_set_error (error, DBUS_ERROR_FAILED,
365 "Service %s already exists in activation entry list\n", name);
369 entry = dbus_new0 (BusActivationEntry, 1);
379 entry->systemd_service = systemd_service;
382 /* ownership has been transferred to entry, do not free separately */
386 systemd_service = NULL;
388 entry->s_dir = s_dir;
389 entry->filename = _dbus_strdup (_dbus_string_get_const_data (filename));
390 if (!entry->filename)
396 if (!_dbus_hash_table_insert_string (activation->entries, entry->name, bus_activation_entry_ref (entry)))
402 if (!_dbus_hash_table_insert_string (s_dir->entries, entry->filename, bus_activation_entry_ref (entry)))
404 /* Revert the insertion in the entries table */
405 _dbus_hash_table_remove_string (activation->entries, entry->name);
410 _dbus_verbose ("Added \"%s\" to list of services\n", entry->name);
412 else /* Just update the entry */
414 bus_activation_entry_ref (entry);
415 _dbus_hash_table_remove_string (activation->entries, entry->name);
417 if (_dbus_hash_table_lookup_string (activation->entries, name))
419 _dbus_verbose ("The new service name \"%s\" of service file \"%s\" already in cache, ignoring\n",
420 name, _dbus_string_get_const_data (&file_path));
424 /* ownership has been transferred to entry, do not free separately */
425 dbus_free (entry->name);
429 dbus_free (entry->exec);
433 dbus_free (entry->user);
437 dbus_free (entry->systemd_service);
438 entry->systemd_service = systemd_service;
439 systemd_service = NULL;
441 if (!_dbus_hash_table_insert_string (activation->entries,
442 entry->name, bus_activation_entry_ref(entry)))
445 /* Also remove path to entries hash since we want this in sync with
446 * the entries hash table */
447 _dbus_hash_table_remove_string (entry->s_dir->entries,
449 bus_activation_entry_unref (entry);
454 entry->mtime = stat_buf.mtime;
458 /* if these have been transferred into entry, the variables will be NULL */
462 dbus_free (systemd_service);
463 _dbus_string_free (&file_path);
466 bus_activation_entry_unref (entry);
472 check_service_file (BusActivation *activation,
473 BusActivationEntry *entry,
474 BusActivationEntry **updated_entry,
479 BusActivationEntry *tmp_entry;
480 DBusString file_path;
486 _dbus_string_init_const (&filename, entry->filename);
488 if (!_dbus_string_init (&file_path))
494 if (!_dbus_string_append (&file_path, entry->s_dir->dir_c) ||
495 !_dbus_concat_dir_and_file (&file_path, &filename))
502 if (!_dbus_stat (&file_path, &stat_buf, NULL))
504 _dbus_verbose ("****** Can't stat file \"%s\", removing from cache\n",
505 _dbus_string_get_const_data (&file_path));
507 _dbus_hash_table_remove_string (activation->entries, entry->name);
508 _dbus_hash_table_remove_string (entry->s_dir->entries, entry->filename);
516 if (stat_buf.mtime > entry->mtime)
518 BusDesktopFile *desktop_file;
521 dbus_error_init (&tmp_error);
523 desktop_file = bus_desktop_file_load (&file_path, &tmp_error);
524 if (desktop_file == NULL)
526 _dbus_verbose ("Could not load %s: %s\n",
527 _dbus_string_get_const_data (&file_path),
529 if (dbus_error_has_name (&tmp_error, DBUS_ERROR_NO_MEMORY))
531 dbus_move_error (&tmp_error, error);
535 dbus_error_free (&tmp_error);
540 /* @todo We can return OOM or a DBUS_ERROR_FAILED error
541 * Handle these both better
543 if (!update_desktop_file_entry (activation, entry->s_dir, &filename, desktop_file, &tmp_error))
545 bus_desktop_file_free (desktop_file);
546 if (dbus_error_has_name (&tmp_error, DBUS_ERROR_NO_MEMORY))
548 dbus_move_error (&tmp_error, error);
552 dbus_error_free (&tmp_error);
557 bus_desktop_file_free (desktop_file);
563 _dbus_string_free (&file_path);
565 if (updated_entry != NULL)
566 *updated_entry = tmp_entry;
571 /* warning: this doesn't fully "undo" itself on failure, i.e. doesn't strip
572 * hash entries it already added.
575 update_directory (BusActivation *activation,
576 BusServiceDirectory *s_dir,
580 DBusString dir, filename;
581 BusDesktopFile *desktop_file;
584 BusActivationEntry *entry;
585 DBusString full_path;
587 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
592 _dbus_string_init_const (&dir, s_dir->dir_c);
594 if (!_dbus_string_init (&filename))
600 if (!_dbus_string_init (&full_path))
603 _dbus_string_free (&filename);
609 /* from this point it's safe to "goto out" */
611 iter = _dbus_directory_open (&dir, error);
614 _dbus_verbose ("Failed to open directory %s: %s\n",
616 error ? error->message : "unknown");
620 /* Now read the files */
621 dbus_error_init (&tmp_error);
622 while (_dbus_directory_get_next_file (iter, &filename, &tmp_error))
624 _dbus_assert (!dbus_error_is_set (&tmp_error));
626 _dbus_string_set_length (&full_path, 0);
628 if (!_dbus_string_ends_with_c_str (&filename, ".service"))
630 _dbus_verbose ("Skipping non-.service file %s\n",
631 _dbus_string_get_const_data (&filename));
635 entry = _dbus_hash_table_lookup_string (s_dir->entries, _dbus_string_get_const_data (&filename));
636 if (entry) /* Already has this service file in the cache */
638 if (!check_service_file (activation, entry, NULL, error))
644 if (!_dbus_string_append (&full_path, s_dir->dir_c) ||
645 !_dbus_concat_dir_and_file (&full_path, &filename))
652 desktop_file = bus_desktop_file_load (&full_path, &tmp_error);
653 if (desktop_file == NULL)
655 _dbus_verbose ("Could not load %s: %s\n",
656 _dbus_string_get_const_data (&full_path),
659 if (dbus_error_has_name (&tmp_error, DBUS_ERROR_NO_MEMORY))
661 dbus_move_error (&tmp_error, error);
665 dbus_error_free (&tmp_error);
669 /* @todo We can return OOM or a DBUS_ERROR_FAILED error
670 * Handle these both better
672 if (!update_desktop_file_entry (activation, s_dir, &filename, desktop_file, &tmp_error))
674 bus_desktop_file_free (desktop_file);
677 _dbus_verbose ("Could not add %s to activation entry list: %s\n",
678 _dbus_string_get_const_data (&full_path), tmp_error.message);
680 if (dbus_error_has_name (&tmp_error, DBUS_ERROR_NO_MEMORY))
682 dbus_move_error (&tmp_error, error);
686 dbus_error_free (&tmp_error);
691 bus_desktop_file_free (desktop_file);
697 if (dbus_error_is_set (&tmp_error))
699 dbus_move_error (&tmp_error, error);
707 _DBUS_ASSERT_ERROR_IS_SET (error);
709 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
712 _dbus_directory_close (iter);
713 _dbus_string_free (&filename);
714 _dbus_string_free (&full_path);
720 populate_environment (BusActivation *activation)
726 dbus_bool_t retval = FALSE;
728 environment = _dbus_get_environment ();
730 if (environment == NULL)
733 if (!_dbus_string_init (&key))
735 dbus_free_string_array (environment);
739 if (!_dbus_string_init (&value))
741 _dbus_string_free (&key);
742 dbus_free_string_array (environment);
746 for (i = 0; environment[i] != NULL; i++)
748 if (!_dbus_string_append (&key, environment[i]))
751 if (_dbus_string_split_on_byte (&key, '=', &value))
753 char *hash_key, *hash_value;
755 if (!_dbus_string_steal_data (&key, &hash_key))
758 if (!_dbus_string_steal_data (&value, &hash_value))
761 if (!_dbus_hash_table_insert_string (activation->environment,
762 hash_key, hash_value))
765 _dbus_string_set_length (&key, 0);
766 _dbus_string_set_length (&value, 0);
769 if (environment[i] != NULL)
775 _dbus_string_free (&key);
776 _dbus_string_free (&value);
777 dbus_free_string_array (environment);
783 bus_activation_reload (BusActivation *activation,
784 const DBusString *address,
785 DBusList **directories,
791 if (activation->server_address != NULL)
792 dbus_free (activation->server_address);
793 if (!_dbus_string_copy_data (address, &activation->server_address))
799 if (activation->entries != NULL)
800 _dbus_hash_table_unref (activation->entries);
801 activation->entries = _dbus_hash_table_new (DBUS_HASH_STRING, NULL,
802 (DBusFreeFunction)bus_activation_entry_unref);
803 if (activation->entries == NULL)
809 if (activation->directories != NULL)
810 _dbus_hash_table_unref (activation->directories);
811 activation->directories = _dbus_hash_table_new (DBUS_HASH_STRING, NULL,
812 (DBusFreeFunction)bus_service_directory_unref);
814 if (activation->directories == NULL)
820 link = _dbus_list_get_first_link (directories);
823 BusServiceDirectory *s_dir;
825 dir = _dbus_strdup ((const char *) link->data);
832 s_dir = dbus_new0 (BusServiceDirectory, 1);
843 s_dir->entries = _dbus_hash_table_new (DBUS_HASH_STRING, NULL,
844 (DBusFreeFunction)bus_activation_entry_unref);
848 bus_service_directory_unref (s_dir);
853 if (!_dbus_hash_table_insert_string (activation->directories, s_dir->dir_c, s_dir))
855 bus_service_directory_unref (s_dir);
860 /* only fail on OOM, it is ok if we can't read the directory */
861 if (!update_directory (activation, s_dir, error))
863 if (dbus_error_has_name (error, DBUS_ERROR_NO_MEMORY))
866 dbus_error_free (error);
869 link = _dbus_list_get_next_link (directories, link);
878 bus_activation_new (BusContext *context,
879 const DBusString *address,
880 DBusList **directories,
883 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 bus_context_log (activation->context,
1097 DBUS_SYSTEM_LOG_INFO, "Successfully activated service '%s'",
1100 link = _dbus_list_get_first_link (&pending_activation->entries);
1101 while (link != NULL)
1103 BusPendingActivationEntry *entry = link->data;
1104 DBusList *next = _dbus_list_get_next_link (&pending_activation->entries, link);
1106 if (dbus_connection_get_is_connected (entry->connection))
1108 /* Only send activation replies to regular activation requests. */
1109 if (!entry->auto_activation)
1111 dbus_uint32_t result;
1113 message = dbus_message_new_method_return (entry->activation_message);
1116 BUS_SET_OOM (error);
1120 result = DBUS_START_REPLY_SUCCESS;
1122 if (!dbus_message_append_args (message,
1123 DBUS_TYPE_UINT32, &result,
1126 dbus_message_unref (message);
1127 BUS_SET_OOM (error);
1131 if (!bus_transaction_send_from_driver (transaction, entry->connection, message))
1133 dbus_message_unref (message);
1134 BUS_SET_OOM (error);
1138 dbus_message_unref (message);
1152 bus_activation_send_pending_auto_activation_messages (BusActivation *activation,
1153 BusService *service,
1154 BusTransaction *transaction,
1157 BusPendingActivation *pending_activation;
1160 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1162 /* Check if it's a pending activation */
1163 pending_activation = _dbus_hash_table_lookup_string (activation->pending_activations,
1164 bus_service_get_name (service));
1166 if (!pending_activation)
1169 link = _dbus_list_get_first_link (&pending_activation->entries);
1170 while (link != NULL)
1172 BusPendingActivationEntry *entry = link->data;
1173 DBusList *next = _dbus_list_get_next_link (&pending_activation->entries, link);
1175 if (entry->auto_activation && dbus_connection_get_is_connected (entry->connection))
1177 DBusConnection *addressed_recipient;
1179 addressed_recipient = bus_service_get_primary_owners_connection (service);
1181 /* Resume dispatching where we left off in bus_dispatch() */
1182 if (!bus_dispatch_matches (transaction,
1184 addressed_recipient,
1185 entry->activation_message, error))
1192 if (!add_restore_pending_to_transaction (transaction, pending_activation))
1194 _dbus_verbose ("Could not add cancel hook to transaction to revert removing pending activation\n");
1195 BUS_SET_OOM (error);
1199 _dbus_hash_table_remove_string (activation->pending_activations, bus_service_get_name (service));
1208 * FIXME @todo the error messages here would ideally be preallocated
1209 * so we don't need to allocate memory to send them.
1210 * Using the usual tactic, prealloc an OOM message, then
1211 * if we can't alloc the real error send the OOM error instead.
1214 try_send_activation_failure (BusPendingActivation *pending_activation,
1215 const DBusError *how)
1217 BusActivation *activation;
1219 BusTransaction *transaction;
1221 activation = pending_activation->activation;
1223 transaction = bus_transaction_new (activation->context);
1224 if (transaction == NULL)
1227 link = _dbus_list_get_first_link (&pending_activation->entries);
1228 while (link != NULL)
1230 BusPendingActivationEntry *entry = link->data;
1231 DBusList *next = _dbus_list_get_next_link (&pending_activation->entries, link);
1233 if (dbus_connection_get_is_connected (entry->connection))
1235 if (!bus_transaction_send_error_reply (transaction,
1238 entry->activation_message))
1245 bus_transaction_execute_and_free (transaction);
1251 bus_transaction_cancel_and_free (transaction);
1256 * Free the pending activation and send an error message to all the
1257 * connections that were waiting for it.
1260 pending_activation_failed (BusPendingActivation *pending_activation,
1261 const DBusError *how)
1263 /* FIXME use preallocated OOM messages instead of bus_wait_for_memory() */
1264 while (!try_send_activation_failure (pending_activation, how))
1265 _dbus_wait_for_memory ();
1267 /* Destroy this pending activation */
1268 _dbus_hash_table_remove_string (pending_activation->activation->pending_activations,
1269 pending_activation->service_name);
1273 * Depending on the exit code of the helper, set the error accordingly
1276 handle_servicehelper_exit_error (int exit_code,
1281 case BUS_SPAWN_EXIT_CODE_NO_MEMORY:
1282 dbus_set_error (error, DBUS_ERROR_NO_MEMORY,
1283 "Launcher could not run (out of memory)");
1285 case BUS_SPAWN_EXIT_CODE_SETUP_FAILED:
1286 dbus_set_error (error, DBUS_ERROR_SPAWN_SETUP_FAILED,
1287 "Failed to setup environment correctly");
1289 case BUS_SPAWN_EXIT_CODE_NAME_INVALID:
1290 dbus_set_error (error, DBUS_ERROR_SPAWN_SERVICE_INVALID,
1291 "Bus name is not valid or missing");
1293 case BUS_SPAWN_EXIT_CODE_SERVICE_NOT_FOUND:
1294 dbus_set_error (error, DBUS_ERROR_SPAWN_SERVICE_NOT_FOUND,
1295 "Bus name not found in system service directory");
1297 case BUS_SPAWN_EXIT_CODE_PERMISSIONS_INVALID:
1298 dbus_set_error (error, DBUS_ERROR_SPAWN_PERMISSIONS_INVALID,
1299 "The permission of the setuid helper is not correct");
1301 case BUS_SPAWN_EXIT_CODE_FILE_INVALID:
1302 dbus_set_error (error, DBUS_ERROR_SPAWN_PERMISSIONS_INVALID,
1303 "The service file is incorrect or does not have all required attributes");
1305 case BUS_SPAWN_EXIT_CODE_EXEC_FAILED:
1306 dbus_set_error (error, DBUS_ERROR_SPAWN_EXEC_FAILED,
1307 "Cannot launch daemon, file not found or permissions invalid");
1309 case BUS_SPAWN_EXIT_CODE_INVALID_ARGS:
1310 dbus_set_error (error, DBUS_ERROR_INVALID_ARGS,
1311 "Invalid arguments to command line");
1313 case BUS_SPAWN_EXIT_CODE_CHILD_SIGNALED:
1314 dbus_set_error (error, DBUS_ERROR_SPAWN_CHILD_SIGNALED,
1315 "Launched child was signaled, it probably crashed");
1318 dbus_set_error (error, DBUS_ERROR_SPAWN_CHILD_EXITED,
1319 "Launch helper exited with unknown return code %i", exit_code);
1325 pending_activation_finished_cb (DBusBabysitter *babysitter,
1328 BusPendingActivation *pending_activation = data;
1329 dbus_bool_t uses_servicehelper;
1331 _dbus_assert (babysitter == pending_activation->babysitter);
1332 _dbus_babysitter_ref (babysitter);
1334 /* There are two major cases here; are we the system bus or the session? Here this
1335 * is distinguished by whether or not we use a setuid helper launcher. With the launch helper,
1336 * some process exit codes are meaningful, processed by handle_servicehelper_exit_error.
1338 * In both cases though, just ignore when a process exits with status 0; it's possible for
1339 * a program to (misguidedly) "daemonize", and that appears to us as an exit. This closes a race
1340 * condition between this code and the child process claiming the bus name.
1342 uses_servicehelper = bus_context_get_servicehelper (pending_activation->activation->context) != NULL;
1344 /* strictly speaking this is redundant with the check in dbus-spawn now */
1345 if (_dbus_babysitter_get_child_exited (babysitter))
1349 dbus_bool_t activation_failed;
1352 dbus_error_init (&error);
1354 _dbus_babysitter_set_child_exit_error (babysitter, &error);
1356 /* Explicitly check for SPAWN_CHILD_EXITED to avoid overwriting an
1358 if (dbus_error_has_name (&error, DBUS_ERROR_SPAWN_CHILD_EXITED)
1359 && _dbus_babysitter_get_child_exit_status (babysitter, &exit_code))
1361 activation_failed = exit_code != 0;
1363 dbus_error_free(&error);
1365 if (activation_failed)
1367 if (uses_servicehelper)
1368 handle_servicehelper_exit_error (exit_code, &error);
1370 _dbus_babysitter_set_child_exit_error (babysitter, &error);
1375 activation_failed = TRUE;
1378 if (activation_failed)
1380 bus_context_log (pending_activation->activation->context,
1381 DBUS_SYSTEM_LOG_INFO, "Activated service '%s' failed: %s",
1382 pending_activation->service_name,
1385 /* Destroy all pending activations with the same exec */
1386 _dbus_hash_iter_init (pending_activation->activation->pending_activations,
1388 while (_dbus_hash_iter_next (&iter))
1390 BusPendingActivation *p = _dbus_hash_iter_get_value (&iter);
1392 if (p != pending_activation && strcmp (p->exec, pending_activation->exec) == 0)
1393 pending_activation_failed (p, &error);
1396 /* Destroys the pending activation */
1397 pending_activation_failed (pending_activation, &error);
1399 dbus_error_free (&error);
1403 _dbus_babysitter_unref (babysitter);
1407 add_babysitter_watch (DBusWatch *watch,
1410 BusPendingActivation *pending_activation = data;
1412 return _dbus_loop_add_watch (
1413 bus_context_get_loop (pending_activation->activation->context),
1418 remove_babysitter_watch (DBusWatch *watch,
1421 BusPendingActivation *pending_activation = data;
1423 _dbus_loop_remove_watch (bus_context_get_loop (pending_activation->activation->context),
1428 pending_activation_timed_out (void *data)
1430 BusPendingActivation *pending_activation = data;
1433 /* Kill the spawned process, since it sucks
1434 * (not sure this is what we want to do, but
1435 * may as well try it for now)
1437 if (pending_activation->babysitter)
1438 _dbus_babysitter_kill_child (pending_activation->babysitter);
1440 dbus_error_init (&error);
1442 dbus_set_error (&error, DBUS_ERROR_TIMED_OUT,
1443 "Activation of %s timed out",
1444 pending_activation->service_name);
1445 bus_context_log (pending_activation->activation->context,
1446 DBUS_SYSTEM_LOG_INFO,
1447 "Failed to activate service '%s': timed out",
1448 pending_activation->service_name);
1450 pending_activation_failed (pending_activation, &error);
1452 dbus_error_free (&error);
1458 cancel_pending (void *data)
1460 BusPendingActivation *pending_activation = data;
1462 _dbus_verbose ("Canceling pending activation of %s\n",
1463 pending_activation->service_name);
1465 if (pending_activation->babysitter)
1466 _dbus_babysitter_kill_child (pending_activation->babysitter);
1468 _dbus_hash_table_remove_string (pending_activation->activation->pending_activations,
1469 pending_activation->service_name);
1473 free_pending_cancel_data (void *data)
1475 BusPendingActivation *pending_activation = data;
1477 bus_pending_activation_unref (pending_activation);
1481 add_cancel_pending_to_transaction (BusTransaction *transaction,
1482 BusPendingActivation *pending_activation)
1484 if (!bus_transaction_add_cancel_hook (transaction, cancel_pending,
1486 free_pending_cancel_data))
1489 bus_pending_activation_ref (pending_activation);
1491 _dbus_verbose ("Saved pending activation to be canceled if the transaction fails\n");
1497 update_service_cache (BusActivation *activation, DBusError *error)
1501 _dbus_hash_iter_init (activation->directories, &iter);
1502 while (_dbus_hash_iter_next (&iter))
1504 DBusError tmp_error;
1505 BusServiceDirectory *s_dir;
1507 s_dir = _dbus_hash_iter_get_value (&iter);
1509 dbus_error_init (&tmp_error);
1510 if (!update_directory (activation, s_dir, &tmp_error))
1512 if (dbus_error_has_name (&tmp_error, DBUS_ERROR_NO_MEMORY))
1514 dbus_move_error (&tmp_error, error);
1518 dbus_error_free (&tmp_error);
1526 static BusActivationEntry *
1527 activation_find_entry (BusActivation *activation,
1528 const char *service_name,
1531 BusActivationEntry *entry;
1533 entry = _dbus_hash_table_lookup_string (activation->entries, service_name);
1536 if (!update_service_cache (activation, error))
1539 entry = _dbus_hash_table_lookup_string (activation->entries,
1544 BusActivationEntry *updated_entry;
1546 if (!check_service_file (activation, entry, &updated_entry, error))
1549 entry = updated_entry;
1554 dbus_set_error (error, DBUS_ERROR_SERVICE_UNKNOWN,
1555 "The name %s was not provided by any .service files",
1564 bus_activation_get_environment (BusActivation *activation)
1571 length = _dbus_hash_table_get_n_entries (activation->environment);
1573 environment = dbus_new0 (char *, length + 1);
1575 if (environment == NULL)
1579 _dbus_hash_iter_init (activation->environment, &iter);
1581 if (!_dbus_string_init (&entry))
1583 dbus_free_string_array (environment);
1587 while (_dbus_hash_iter_next (&iter))
1589 const char *key, *value;
1591 key = (const char *) _dbus_hash_iter_get_string_key (&iter);
1592 value = (const char *) _dbus_hash_iter_get_value (&iter);
1594 if (!_dbus_string_append_printf (&entry, "%s=%s", key, value))
1597 if (!_dbus_string_steal_data (&entry, environment + i))
1602 _dbus_string_free (&entry);
1606 dbus_free_string_array (environment);
1614 bus_activation_set_environment_variable (BusActivation *activation,
1626 hash_key = _dbus_strdup (key);
1628 if (hash_key == NULL)
1631 hash_value = _dbus_strdup (value);
1633 if (hash_value == NULL)
1636 if (!_dbus_hash_table_insert_string (activation->environment,
1637 hash_key, hash_value))
1642 if (retval == FALSE)
1644 dbus_free (hash_key);
1645 dbus_free (hash_value);
1646 BUS_SET_OOM (error);
1653 bus_activation_activate_service (BusActivation *activation,
1654 DBusConnection *connection,
1655 BusTransaction *transaction,
1656 dbus_bool_t auto_activation,
1657 DBusMessage *activation_message,
1658 const char *service_name,
1661 DBusError tmp_error;
1662 BusActivationEntry *entry;
1663 BusPendingActivation *pending_activation;
1664 BusPendingActivationEntry *pending_activation_entry;
1665 DBusMessage *message;
1666 DBusString service_str;
1667 const char *servicehelper;
1672 dbus_bool_t was_pending_activation;
1675 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1677 if (activation->n_pending_activations >=
1678 bus_context_get_max_pending_activations (activation->context))
1680 dbus_set_error (error, DBUS_ERROR_LIMITS_EXCEEDED,
1681 "The maximum number of pending activations has been reached, activation of %s failed",
1686 entry = activation_find_entry (activation, service_name, error);
1690 /* Bypass the registry lookup if we're auto-activating, bus_dispatch would not
1691 * call us if the service is already active.
1693 if (!auto_activation)
1695 /* Check if the service is active */
1696 _dbus_string_init_const (&service_str, service_name);
1697 if (bus_registry_lookup (bus_context_get_registry (activation->context), &service_str) != NULL)
1699 dbus_uint32_t result;
1701 _dbus_verbose ("Service \"%s\" is already active\n", service_name);
1703 message = dbus_message_new_method_return (activation_message);
1707 _dbus_verbose ("No memory to create reply to activate message\n");
1708 BUS_SET_OOM (error);
1712 result = DBUS_START_REPLY_ALREADY_RUNNING;
1714 if (!dbus_message_append_args (message,
1715 DBUS_TYPE_UINT32, &result,
1718 _dbus_verbose ("No memory to set args of reply to activate message\n");
1719 BUS_SET_OOM (error);
1720 dbus_message_unref (message);
1724 retval = bus_transaction_send_from_driver (transaction, connection, message);
1725 dbus_message_unref (message);
1728 _dbus_verbose ("Failed to send reply\n");
1729 BUS_SET_OOM (error);
1736 pending_activation_entry = dbus_new0 (BusPendingActivationEntry, 1);
1737 if (!pending_activation_entry)
1739 _dbus_verbose ("Failed to create pending activation entry\n");
1740 BUS_SET_OOM (error);
1744 pending_activation_entry->auto_activation = auto_activation;
1746 pending_activation_entry->activation_message = activation_message;
1747 dbus_message_ref (activation_message);
1748 pending_activation_entry->connection = connection;
1749 dbus_connection_ref (connection);
1751 /* Check if the service is being activated */
1752 pending_activation = _dbus_hash_table_lookup_string (activation->pending_activations, service_name);
1753 was_pending_activation = (pending_activation != NULL);
1754 if (was_pending_activation)
1756 if (!_dbus_list_append (&pending_activation->entries, pending_activation_entry))
1758 _dbus_verbose ("Failed to append a new entry to pending activation\n");
1760 BUS_SET_OOM (error);
1761 bus_pending_activation_entry_free (pending_activation_entry);
1765 pending_activation->n_entries += 1;
1766 pending_activation->activation->n_pending_activations += 1;
1770 pending_activation = dbus_new0 (BusPendingActivation, 1);
1771 if (!pending_activation)
1773 _dbus_verbose ("Failed to create pending activation\n");
1775 BUS_SET_OOM (error);
1776 bus_pending_activation_entry_free (pending_activation_entry);
1780 pending_activation->activation = activation;
1781 pending_activation->refcount = 1;
1783 pending_activation->service_name = _dbus_strdup (service_name);
1784 if (!pending_activation->service_name)
1786 _dbus_verbose ("Failed to copy service name for pending activation\n");
1788 BUS_SET_OOM (error);
1789 bus_pending_activation_unref (pending_activation);
1790 bus_pending_activation_entry_free (pending_activation_entry);
1794 pending_activation->exec = _dbus_strdup (entry->exec);
1795 if (!pending_activation->exec)
1797 _dbus_verbose ("Failed to copy service exec for pending activation\n");
1798 BUS_SET_OOM (error);
1799 bus_pending_activation_unref (pending_activation);
1800 bus_pending_activation_entry_free (pending_activation_entry);
1804 if (entry->systemd_service)
1806 pending_activation->systemd_service = _dbus_strdup (entry->systemd_service);
1807 if (!pending_activation->systemd_service)
1809 _dbus_verbose ("Failed to copy systemd service for pending activation\n");
1810 BUS_SET_OOM (error);
1811 bus_pending_activation_unref (pending_activation);
1812 bus_pending_activation_entry_free (pending_activation_entry);
1817 pending_activation->timeout =
1818 _dbus_timeout_new (bus_context_get_activation_timeout (activation->context),
1819 pending_activation_timed_out,
1822 if (!pending_activation->timeout)
1824 _dbus_verbose ("Failed to create timeout for pending activation\n");
1826 BUS_SET_OOM (error);
1827 bus_pending_activation_unref (pending_activation);
1828 bus_pending_activation_entry_free (pending_activation_entry);
1832 if (!_dbus_loop_add_timeout (bus_context_get_loop (activation->context),
1833 pending_activation->timeout))
1835 _dbus_verbose ("Failed to add timeout for pending activation\n");
1837 BUS_SET_OOM (error);
1838 bus_pending_activation_unref (pending_activation);
1839 bus_pending_activation_entry_free (pending_activation_entry);
1843 pending_activation->timeout_added = TRUE;
1845 if (!_dbus_list_append (&pending_activation->entries, pending_activation_entry))
1847 _dbus_verbose ("Failed to add entry to just-created pending activation\n");
1849 BUS_SET_OOM (error);
1850 bus_pending_activation_unref (pending_activation);
1851 bus_pending_activation_entry_free (pending_activation_entry);
1855 pending_activation->n_entries += 1;
1856 pending_activation->activation->n_pending_activations += 1;
1858 if (!_dbus_hash_table_insert_string (activation->pending_activations,
1859 pending_activation->service_name,
1860 pending_activation))
1862 _dbus_verbose ("Failed to put pending activation in hash table\n");
1864 BUS_SET_OOM (error);
1865 bus_pending_activation_unref (pending_activation);
1870 if (!add_cancel_pending_to_transaction (transaction, pending_activation))
1872 _dbus_verbose ("Failed to add pending activation cancel hook to transaction\n");
1873 BUS_SET_OOM (error);
1874 _dbus_hash_table_remove_string (activation->pending_activations,
1875 pending_activation->service_name);
1880 if (was_pending_activation)
1883 if (bus_context_get_systemd_activation (activation->context))
1885 if (strcmp (service_name, "org.freedesktop.systemd1") == 0)
1886 /* systemd itself is missing apparently. That can happen
1887 only during early startup. Let's just wait until systemd
1888 connects to us and do nothing. */
1891 if (entry->systemd_service)
1893 BusTransaction *activation_transaction;
1894 DBusString service_string;
1895 BusService *service;
1896 BusRegistry *registry;
1898 /* OK, we have a systemd service configured for this entry,
1899 hence let's enqueue an activation request message. This
1900 is implemented as a directed signal, not a method call,
1901 for three reasons: 1) we don't expect a response on
1902 success, where we just expect a name appearing on the
1903 bus; 2) at this time the systemd service might not yet
1904 have connected, so we wouldn't know the message serial at
1905 this point to set up a pending call; 3) it is ugly if the
1906 bus suddenly becomes the caller of a remote method. */
1908 message = dbus_message_new_signal (DBUS_PATH_DBUS,
1909 "org.freedesktop.systemd1.Activator",
1910 "ActivationRequest");
1913 _dbus_verbose ("No memory to create activation message\n");
1914 BUS_SET_OOM (error);
1918 if (!dbus_message_set_sender (message, DBUS_SERVICE_DBUS) ||
1919 !dbus_message_set_destination (message, "org.freedesktop.systemd1") ||
1920 !dbus_message_append_args (message,
1921 DBUS_TYPE_STRING, &entry->systemd_service,
1924 _dbus_verbose ("No memory to set args of activation message\n");
1925 dbus_message_unref (message);
1926 BUS_SET_OOM (error);
1930 /* Create our transaction */
1931 activation_transaction = bus_transaction_new (activation->context);
1932 if (activation_transaction == NULL)
1934 _dbus_verbose ("No memory to create activation transaction\n");
1935 dbus_message_unref (message);
1936 BUS_SET_OOM (error);
1940 /* Check whether systemd is already connected */
1941 registry = bus_connection_get_registry (connection);
1942 _dbus_string_init_const (&service_string, "org.freedesktop.systemd1");
1943 service = bus_registry_lookup (registry, &service_string);
1945 if (service != NULL)
1947 bus_context_log (activation->context,
1948 DBUS_SYSTEM_LOG_INFO, "Activating via systemd: service name='%s' unit='%s'",
1950 entry->systemd_service);
1951 /* Wonderful, systemd is connected, let's just send the msg */
1952 retval = bus_dispatch_matches (activation_transaction, NULL, bus_service_get_primary_owners_connection (service),
1957 bus_context_log (activation->context,
1958 DBUS_SYSTEM_LOG_INFO, "Activating systemd to hand-off: service name='%s' unit='%s'",
1960 entry->systemd_service);
1961 /* systemd is not around, let's "activate" it. */
1962 retval = bus_activation_activate_service (activation, connection, activation_transaction, TRUE,
1963 message, "org.freedesktop.systemd1", error);
1966 dbus_message_unref (message);
1970 bus_context_log (activation->context,
1971 DBUS_SYSTEM_LOG_INFO, "Failed to activate via systemd: service name='%s' unit='%s'",
1973 entry->systemd_service);
1974 _DBUS_ASSERT_ERROR_IS_SET (error);
1975 _dbus_verbose ("failed to send activation message: %s\n", error->name);
1976 bus_transaction_cancel_and_free (activation_transaction);
1980 bus_transaction_execute_and_free (activation_transaction);
1984 /* OK, we have no configured systemd service, hence let's
1985 proceed with traditional activation. */
1988 /* use command as system and session different */
1989 if (!_dbus_string_init (&command))
1991 BUS_SET_OOM (error);
1995 /* does the bus use a helper? */
1996 servicehelper = bus_context_get_servicehelper (activation->context);
1997 if (servicehelper != NULL)
1999 if (entry->user == NULL)
2001 _dbus_string_free (&command);
2002 dbus_set_error (error, DBUS_ERROR_SPAWN_FILE_INVALID,
2003 "Cannot do system-bus activation with no user\n");
2007 /* join the helper path and the service name */
2008 if (!_dbus_string_append (&command, servicehelper))
2010 _dbus_string_free (&command);
2011 BUS_SET_OOM (error);
2014 if (!_dbus_string_append (&command, " "))
2016 _dbus_string_free (&command);
2017 BUS_SET_OOM (error);
2020 if (!_dbus_string_append (&command, service_name))
2022 _dbus_string_free (&command);
2023 BUS_SET_OOM (error);
2029 /* the bus does not use a helper, so we can append arguments with the exec line */
2030 if (!_dbus_string_append (&command, entry->exec))
2032 _dbus_string_free (&command);
2033 BUS_SET_OOM (error);
2038 /* convert command into arguments */
2039 if (!_dbus_shell_parse_argv (_dbus_string_get_const_data (&command), &argc, &argv, error))
2041 _dbus_verbose ("Failed to parse command line: %s\n", entry->exec);
2042 _DBUS_ASSERT_ERROR_IS_SET (error);
2044 _dbus_hash_table_remove_string (activation->pending_activations,
2045 pending_activation->service_name);
2047 _dbus_string_free (&command);
2050 _dbus_string_free (&command);
2052 if (!add_bus_environment (activation, error))
2054 _DBUS_ASSERT_ERROR_IS_SET (error);
2055 dbus_free_string_array (argv);
2059 envp = bus_activation_get_environment (activation);
2063 BUS_SET_OOM (error);
2064 dbus_free_string_array (argv);
2068 _dbus_verbose ("Spawning %s ...\n", argv[0]);
2069 if (servicehelper != NULL)
2070 bus_context_log (activation->context,
2071 DBUS_SYSTEM_LOG_INFO, "Activating service name='%s' (using servicehelper)",
2074 bus_context_log (activation->context,
2075 DBUS_SYSTEM_LOG_INFO, "Activating service name='%s'",
2078 dbus_error_init (&tmp_error);
2080 if (!_dbus_spawn_async_with_babysitter (&pending_activation->babysitter, argv,
2085 _dbus_verbose ("Failed to spawn child\n");
2086 bus_context_log (activation->context,
2087 DBUS_SYSTEM_LOG_INFO, "Failed to activate service %s: %s",
2090 _DBUS_ASSERT_ERROR_IS_SET (&tmp_error);
2091 dbus_move_error (&tmp_error, error);
2092 dbus_free_string_array (argv);
2093 dbus_free_string_array (envp);
2098 dbus_free_string_array (argv);
2101 _dbus_assert (pending_activation->babysitter != NULL);
2103 _dbus_babysitter_set_result_function (pending_activation->babysitter,
2104 pending_activation_finished_cb,
2105 pending_activation);
2107 if (!_dbus_babysitter_set_watch_functions (pending_activation->babysitter,
2108 add_babysitter_watch,
2109 remove_babysitter_watch,
2114 BUS_SET_OOM (error);
2115 _dbus_verbose ("Failed to set babysitter watch functions\n");
2123 bus_activation_list_services (BusActivation *activation,
2131 len = _dbus_hash_table_get_n_entries (activation->entries);
2132 retval = dbus_new (char *, len + 1);
2137 _dbus_hash_iter_init (activation->entries, &iter);
2139 while (_dbus_hash_iter_next (&iter))
2141 BusActivationEntry *entry = _dbus_hash_iter_get_value (&iter);
2143 retval[i] = _dbus_strdup (entry->name);
2144 if (retval[i] == NULL)
2159 for (j = 0; j < i; j++)
2160 dbus_free (retval[i]);
2167 dbus_activation_systemd_failure (BusActivation *activation,
2168 DBusMessage *message)
2171 const char *code, *str, *unit = NULL;
2173 dbus_error_init(&error);
2175 /* This is called whenever the systemd activator sent us a
2176 response. We'll invalidate all pending activations that match the
2179 if (dbus_message_get_args (message, &error,
2180 DBUS_TYPE_STRING, &unit,
2181 DBUS_TYPE_STRING, &code,
2182 DBUS_TYPE_STRING, &str,
2184 dbus_set_error(&error, code, str);
2191 bus_context_log (activation->context,
2192 DBUS_SYSTEM_LOG_INFO, "Activation via systemd failed for unit '%s': %s",
2196 _dbus_hash_iter_init (activation->pending_activations,
2199 while (_dbus_hash_iter_next (&iter))
2201 BusPendingActivation *p = _dbus_hash_iter_get_value (&iter);
2203 if (p->systemd_service && strcmp (p->systemd_service, unit) == 0)
2204 pending_activation_failed(p, &error);
2208 dbus_error_free(&error);
2213 #ifdef DBUS_BUILD_TESTS
2217 #define SERVICE_NAME_1 "MyService1"
2218 #define SERVICE_NAME_2 "MyService2"
2219 #define SERVICE_NAME_3 "MyService3"
2221 #define SERVICE_FILE_1 "service-1.service"
2222 #define SERVICE_FILE_2 "service-2.service"
2223 #define SERVICE_FILE_3 "service-3.service"
2226 test_create_service_file (DBusString *dir,
2227 const char *filename,
2231 DBusString file_name, full_path;
2233 dbus_bool_t ret_val;
2236 _dbus_string_init_const (&file_name, filename);
2238 if (!_dbus_string_init (&full_path))
2241 if (!_dbus_string_append (&full_path, _dbus_string_get_const_data (dir)) ||
2242 !_dbus_concat_dir_and_file (&full_path, &file_name))
2248 file = fopen (_dbus_string_get_const_data (&full_path), "w");
2255 fprintf (file, "[D-BUS Service]\nName=%s\nExec=%s\n", name, exec);
2259 _dbus_string_free (&full_path);
2264 test_remove_service_file (DBusString *dir, const char *filename)
2266 DBusString file_name, full_path;
2267 dbus_bool_t ret_val;
2271 _dbus_string_init_const (&file_name, filename);
2273 if (!_dbus_string_init (&full_path))
2276 if (!_dbus_string_append (&full_path, _dbus_string_get_const_data (dir)) ||
2277 !_dbus_concat_dir_and_file (&full_path, &file_name))
2283 if (!_dbus_delete_file (&full_path, NULL))
2290 _dbus_string_free (&full_path);
2295 test_remove_directory (DBusString *dir)
2298 DBusString filename, full_path;
2299 dbus_bool_t ret_val;
2303 if (!_dbus_string_init (&filename))
2306 if (!_dbus_string_init (&full_path))
2308 _dbus_string_free (&filename);
2312 iter = _dbus_directory_open (dir, NULL);
2319 while (_dbus_directory_get_next_file (iter, &filename, NULL))
2321 if (!test_remove_service_file (dir, _dbus_string_get_const_data (&filename)))
2327 _dbus_directory_close (iter);
2329 if (!_dbus_delete_directory (dir, NULL))
2336 _dbus_string_free (&filename);
2337 _dbus_string_free (&full_path);
2343 init_service_reload_test (DBusString *dir)
2347 if (!_dbus_stat (dir, &stat_buf, NULL))
2349 if (!_dbus_create_directory (dir, NULL))
2354 if (!test_remove_directory (dir))
2357 if (!_dbus_create_directory (dir, NULL))
2361 /* Create one initial file */
2362 if (!test_create_service_file (dir, SERVICE_FILE_1, SERVICE_NAME_1, "exec-1"))
2369 cleanup_service_reload_test (DBusString *dir)
2371 if (!test_remove_directory (dir))
2379 BusActivation *activation;
2380 const char *service_name;
2381 dbus_bool_t expecting_find;
2385 check_func (void *data)
2388 BusActivationEntry *entry;
2390 dbus_bool_t ret_val;
2395 dbus_error_init (&error);
2397 entry = activation_find_entry (d->activation, d->service_name, &error);
2400 if (dbus_error_has_name (&error, DBUS_ERROR_NO_MEMORY))
2406 if (d->expecting_find)
2410 dbus_error_free (&error);
2414 if (!d->expecting_find)
2422 do_test (const char *description, dbus_bool_t oom_test, CheckData *data)
2427 err = !_dbus_test_oom_handling (description, check_func, data);
2429 err = !check_func (data);
2432 _dbus_assert_not_reached ("Test failed");
2438 do_service_reload_test (DBusString *dir, dbus_bool_t oom_test)
2440 BusActivation *activation;
2442 DBusList *directories;
2446 _dbus_string_init_const (&address, "");
2448 if (!_dbus_list_append (&directories, _dbus_string_get_data (dir)))
2451 activation = bus_activation_new (NULL, &address, &directories, NULL);
2455 d.activation = activation;
2457 /* Check for existing service file */
2458 d.expecting_find = TRUE;
2459 d.service_name = SERVICE_NAME_1;
2461 if (!do_test ("Existing service file", oom_test, &d))
2464 /* Check for non-existing service file */
2465 d.expecting_find = FALSE;
2466 d.service_name = SERVICE_NAME_3;
2468 if (!do_test ("Nonexisting service file", oom_test, &d))
2471 /* Check for added service file */
2472 if (!test_create_service_file (dir, SERVICE_FILE_2, SERVICE_NAME_2, "exec-2"))
2475 d.expecting_find = TRUE;
2476 d.service_name = SERVICE_NAME_2;
2478 if (!do_test ("Added service file", oom_test, &d))
2481 /* Check for removed service file */
2482 if (!test_remove_service_file (dir, SERVICE_FILE_2))
2485 d.expecting_find = FALSE;
2486 d.service_name = SERVICE_FILE_2;
2488 if (!do_test ("Removed service file", oom_test, &d))
2491 /* Check for updated service file */
2493 _dbus_sleep_milliseconds (1000); /* Sleep a second to make sure the mtime is updated */
2495 if (!test_create_service_file (dir, SERVICE_FILE_1, SERVICE_NAME_3, "exec-3"))
2498 d.expecting_find = TRUE;
2499 d.service_name = SERVICE_NAME_3;
2501 if (!do_test ("Updated service file, part 1", oom_test, &d))
2504 d.expecting_find = FALSE;
2505 d.service_name = SERVICE_NAME_1;
2507 if (!do_test ("Updated service file, part 2", oom_test, &d))
2510 bus_activation_unref (activation);
2511 _dbus_list_clear (&directories);
2517 bus_activation_service_reload_test (const DBusString *test_data_dir)
2519 DBusString directory;
2521 if (!_dbus_string_init (&directory))
2524 if (!_dbus_string_append (&directory, _dbus_get_tmpdir()))
2527 if (!_dbus_string_append (&directory, "/dbus-reload-test-") ||
2528 !_dbus_generate_random_ascii (&directory, 6))
2533 /* Do normal tests */
2534 if (!init_service_reload_test (&directory))
2535 _dbus_assert_not_reached ("could not initiate service reload test");
2537 if (!do_service_reload_test (&directory, FALSE))
2541 if (!init_service_reload_test (&directory))
2542 _dbus_assert_not_reached ("could not initiate service reload test");
2544 if (!do_service_reload_test (&directory, TRUE))
2547 /* Cleanup test directory */
2548 if (!cleanup_service_reload_test (&directory))
2551 _dbus_string_free (&directory);
2556 #endif /* DBUS_BUILD_TESTS */