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Diffstat (limited to 'src/3rd_party/dbus-1.7.8/bus/activation.c')
-rw-r--r--src/3rd_party/dbus-1.7.8/bus/activation.c2595
1 files changed, 0 insertions, 2595 deletions
diff --git a/src/3rd_party/dbus-1.7.8/bus/activation.c b/src/3rd_party/dbus-1.7.8/bus/activation.c
deleted file mode 100644
index 868ce05c13..0000000000
--- a/src/3rd_party/dbus-1.7.8/bus/activation.c
+++ /dev/null
@@ -1,2595 +0,0 @@
-/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
-/* activation.c Activation of services
- *
- * Copyright (C) 2003 CodeFactory AB
- * Copyright (C) 2003 Red Hat, Inc.
- * Copyright (C) 2004 Imendio HB
- *
- * Licensed under the Academic Free License version 2.1
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- */
-
-#include <config.h>
-#include "activation.h"
-#include "activation-exit-codes.h"
-#include "desktop-file.h"
-#include "dispatch.h"
-#include "services.h"
-#include "test.h"
-#include "utils.h"
-#include <dbus/dbus-internals.h>
-#include <dbus/dbus-hash.h>
-#include <dbus/dbus-list.h>
-#include <dbus/dbus-shell.h>
-#include <dbus/dbus-spawn.h>
-#include <dbus/dbus-timeout.h>
-#include <dbus/dbus-sysdeps.h>
-#ifdef HAVE_ERRNO_H
-#include <errno.h>
-#endif
-
-struct BusActivation
-{
- int refcount;
- DBusHashTable *entries;
- DBusHashTable *pending_activations;
- char *server_address;
- BusContext *context;
- int n_pending_activations; /**< This is in fact the number of BusPendingActivationEntry,
- * i.e. number of pending activation requests, not pending
- * activations per se
- */
- DBusHashTable *directories;
- DBusHashTable *environment;
-};
-
-typedef struct
-{
- int refcount;
- char *dir_c;
- DBusHashTable *entries;
-} BusServiceDirectory;
-
-typedef struct
-{
- int refcount;
- char *name;
- char *exec;
- char *user;
- char *systemd_service;
- unsigned long mtime;
- BusServiceDirectory *s_dir;
- char *filename;
-} BusActivationEntry;
-
-typedef struct BusPendingActivationEntry BusPendingActivationEntry;
-
-struct BusPendingActivationEntry
-{
- /* Normally a method call, but if connection is NULL, this is a signal
- * instead.
- */
- DBusMessage *activation_message;
- /* NULL if this activation entry is for the dbus-daemon itself,
- * waiting for systemd to start. In this case, auto_activation is always
- * TRUE.
- */
- DBusConnection *connection;
-
- dbus_bool_t auto_activation;
-};
-
-typedef struct
-{
- int refcount;
- BusActivation *activation;
- char *service_name;
- char *exec;
- char *systemd_service;
- DBusList *entries;
- int n_entries;
- DBusBabysitter *babysitter;
- DBusTimeout *timeout;
- unsigned int timeout_added : 1;
-} BusPendingActivation;
-
-#if 0
-static BusServiceDirectory *
-bus_service_directory_ref (BusServiceDirectory *dir)
-{
- _dbus_assert (dir->refcount);
-
- dir->refcount++;
-
- return dir;
-}
-#endif
-
-static void
-bus_service_directory_unref (BusServiceDirectory *dir)
-{
- if (dir == NULL)
- return;
-
- _dbus_assert (dir->refcount > 0);
- dir->refcount--;
-
- if (dir->refcount > 0)
- return;
-
- if (dir->entries)
- _dbus_hash_table_unref (dir->entries);
-
- dbus_free (dir->dir_c);
- dbus_free (dir);
-}
-
-static void
-bus_pending_activation_entry_free (BusPendingActivationEntry *entry)
-{
- if (entry->activation_message)
- dbus_message_unref (entry->activation_message);
-
- if (entry->connection)
- dbus_connection_unref (entry->connection);
-
- dbus_free (entry);
-}
-
-static BusPendingActivation *
-bus_pending_activation_ref (BusPendingActivation *pending_activation)
-{
- _dbus_assert (pending_activation->refcount > 0);
- pending_activation->refcount += 1;
-
- return pending_activation;
-}
-
-static void
-bus_pending_activation_unref (BusPendingActivation *pending_activation)
-{
- DBusList *link;
-
- if (pending_activation == NULL) /* hash table requires this */
- return;
-
- _dbus_assert (pending_activation->refcount > 0);
- pending_activation->refcount -= 1;
-
- if (pending_activation->refcount > 0)
- return;
-
- if (pending_activation->timeout_added)
- {
- _dbus_loop_remove_timeout (bus_context_get_loop (pending_activation->activation->context),
- pending_activation->timeout);
- pending_activation->timeout_added = FALSE;
- }
-
- if (pending_activation->timeout)
- _dbus_timeout_unref (pending_activation->timeout);
-
- if (pending_activation->babysitter)
- {
- if (!_dbus_babysitter_set_watch_functions (pending_activation->babysitter,
- NULL, NULL, NULL,
- pending_activation->babysitter,
- NULL))
- _dbus_assert_not_reached ("setting watch functions to NULL failed");
-
- _dbus_babysitter_unref (pending_activation->babysitter);
- }
-
- dbus_free (pending_activation->service_name);
- dbus_free (pending_activation->exec);
- dbus_free (pending_activation->systemd_service);
-
- link = _dbus_list_get_first_link (&pending_activation->entries);
-
- while (link != NULL)
- {
- BusPendingActivationEntry *entry = link->data;
-
- bus_pending_activation_entry_free (entry);
-
- link = _dbus_list_get_next_link (&pending_activation->entries, link);
- }
- _dbus_list_clear (&pending_activation->entries);
-
- pending_activation->activation->n_pending_activations -=
- pending_activation->n_entries;
-
- _dbus_assert (pending_activation->activation->n_pending_activations >= 0);
-
- dbus_free (pending_activation);
-}
-
-static BusActivationEntry *
-bus_activation_entry_ref (BusActivationEntry *entry)
-{
- _dbus_assert (entry->refcount > 0);
- entry->refcount++;
-
- return entry;
-}
-
-static void
-bus_activation_entry_unref (BusActivationEntry *entry)
-{
- if (entry == NULL) /* hash table requires this */
- return;
-
- _dbus_assert (entry->refcount > 0);
- entry->refcount--;
-
- if (entry->refcount > 0)
- return;
-
- dbus_free (entry->name);
- dbus_free (entry->exec);
- dbus_free (entry->user);
- dbus_free (entry->filename);
- dbus_free (entry->systemd_service);
-
- dbus_free (entry);
-}
-
-static dbus_bool_t
-update_desktop_file_entry (BusActivation *activation,
- BusServiceDirectory *s_dir,
- DBusString *filename,
- BusDesktopFile *desktop_file,
- DBusError *error)
-{
- char *name, *exec, *user, *exec_tmp, *systemd_service;
- BusActivationEntry *entry;
- DBusStat stat_buf;
- DBusString file_path;
- DBusError tmp_error;
- dbus_bool_t retval;
-
- _DBUS_ASSERT_ERROR_IS_CLEAR (error);
-
- retval = FALSE;
- name = NULL;
- exec = NULL;
- user = NULL;
- exec_tmp = NULL;
- entry = NULL;
- systemd_service = NULL;
-
- dbus_error_init (&tmp_error);
-
- if (!_dbus_string_init (&file_path))
- {
- BUS_SET_OOM (error);
- return FALSE;
- }
-
- if (!_dbus_string_append (&file_path, s_dir->dir_c) ||
- !_dbus_concat_dir_and_file (&file_path, filename))
- {
- BUS_SET_OOM (error);
- goto out;
- }
-
- if (!_dbus_stat (&file_path, &stat_buf, NULL))
- {
- dbus_set_error (error, DBUS_ERROR_FAILED,
- "Can't stat the service file\n");
- goto out;
- }
-
- if (!bus_desktop_file_get_string (desktop_file,
- DBUS_SERVICE_SECTION,
- DBUS_SERVICE_NAME,
- &name,
- error))
- goto out;
-
- if (!bus_desktop_file_get_string (desktop_file,
- DBUS_SERVICE_SECTION,
- DBUS_SERVICE_EXEC,
- &exec_tmp,
- error))
- goto out;
-
- exec = _dbus_strdup (_dbus_replace_install_prefix (exec_tmp));
- dbus_free (exec_tmp);
- exec_tmp = NULL;
-
- /* user is not _required_ unless we are using system activation */
- if (!bus_desktop_file_get_string (desktop_file,
- DBUS_SERVICE_SECTION,
- DBUS_SERVICE_USER,
- &user, &tmp_error))
- {
- _DBUS_ASSERT_ERROR_IS_SET (&tmp_error);
- /* if we got OOM, then exit */
- if (dbus_error_has_name (&tmp_error, DBUS_ERROR_NO_MEMORY))
- {
- dbus_move_error (&tmp_error, error);
- goto out;
- }
- else
- {
- /* if we have error because we didn't find anything then continue */
- dbus_error_free (&tmp_error);
- dbus_free (user);
- user = NULL;
- }
- }
- _DBUS_ASSERT_ERROR_IS_CLEAR (&tmp_error);
-
- /* systemd service is never required */
- if (!bus_desktop_file_get_string (desktop_file,
- DBUS_SERVICE_SECTION,
- DBUS_SERVICE_SYSTEMD_SERVICE,
- &systemd_service, &tmp_error))
- {
- _DBUS_ASSERT_ERROR_IS_SET (&tmp_error);
- /* if we got OOM, then exit */
- if (dbus_error_has_name (&tmp_error, DBUS_ERROR_NO_MEMORY))
- {
- dbus_move_error (&tmp_error, error);
- goto out;
- }
- else
- {
- /* if we have error because we didn't find anything then continue */
- dbus_error_free (&tmp_error);
- dbus_free (systemd_service);
- systemd_service = NULL;
- }
- }
-
- _DBUS_ASSERT_ERROR_IS_CLEAR (&tmp_error);
-
- entry = _dbus_hash_table_lookup_string (s_dir->entries,
- _dbus_string_get_const_data (filename));
-
- if (entry == NULL) /* New file */
- {
- /* FIXME we need a better-defined algorithm for which service file to
- * pick than "whichever one is first in the directory listing"
- */
- if (_dbus_hash_table_lookup_string (activation->entries, name))
- {
- dbus_set_error (error, DBUS_ERROR_FAILED,
- "Service %s already exists in activation entry list\n", name);
- goto out;
- }
-
- entry = dbus_new0 (BusActivationEntry, 1);
- if (entry == NULL)
- {
- BUS_SET_OOM (error);
- goto out;
- }
-
- entry->name = name;
- entry->exec = exec;
- entry->user = user;
- entry->systemd_service = systemd_service;
- entry->refcount = 1;
-
- /* ownership has been transferred to entry, do not free separately */
- name = NULL;
- exec = NULL;
- user = NULL;
- systemd_service = NULL;
-
- entry->s_dir = s_dir;
- entry->filename = _dbus_strdup (_dbus_string_get_const_data (filename));
- if (!entry->filename)
- {
- BUS_SET_OOM (error);
- goto out;
- }
-
- if (!_dbus_hash_table_insert_string (activation->entries, entry->name, bus_activation_entry_ref (entry)))
- {
- BUS_SET_OOM (error);
- goto out;
- }
-
- if (!_dbus_hash_table_insert_string (s_dir->entries, entry->filename, bus_activation_entry_ref (entry)))
- {
- /* Revert the insertion in the entries table */
- _dbus_hash_table_remove_string (activation->entries, entry->name);
- BUS_SET_OOM (error);
- goto out;
- }
-
- _dbus_verbose ("Added \"%s\" to list of services\n", entry->name);
- }
- else /* Just update the entry */
- {
- bus_activation_entry_ref (entry);
- _dbus_hash_table_remove_string (activation->entries, entry->name);
-
- if (_dbus_hash_table_lookup_string (activation->entries, name))
- {
- _dbus_verbose ("The new service name \"%s\" of service file \"%s\" is already in cache, ignoring\n",
- name, _dbus_string_get_const_data (&file_path));
- dbus_set_error (error, DBUS_ERROR_FAILED,
- "The new service name \"%s\" of service file \"%s\" is already in cache, ignoring\n",
- name, _dbus_string_get_const_data (&file_path));
- goto out;
- }
-
- /* ownership has been transferred to entry, do not free separately */
- dbus_free (entry->name);
- entry->name = name;
- name = NULL;
-
- dbus_free (entry->exec);
- entry->exec = exec;
- exec = NULL;
-
- dbus_free (entry->user);
- entry->user = user;
- user = NULL;
-
- dbus_free (entry->systemd_service);
- entry->systemd_service = systemd_service;
- systemd_service = NULL;
-
- if (!_dbus_hash_table_insert_string (activation->entries,
- entry->name, bus_activation_entry_ref(entry)))
- {
- BUS_SET_OOM (error);
- /* Also remove path to entries hash since we want this in sync with
- * the entries hash table */
- _dbus_hash_table_remove_string (entry->s_dir->entries,
- entry->filename);
- goto out;
- }
- }
-
- entry->mtime = stat_buf.mtime;
- retval = TRUE;
-
-out:
- /* if these have been transferred into entry, the variables will be NULL */
- dbus_free (name);
- dbus_free (exec);
- dbus_free (user);
- dbus_free (systemd_service);
- _dbus_string_free (&file_path);
-
- if (entry)
- bus_activation_entry_unref (entry);
-
- return retval;
-}
-
-static dbus_bool_t
-check_service_file (BusActivation *activation,
- BusActivationEntry *entry,
- BusActivationEntry **updated_entry,
- DBusError *error)
-{
- DBusStat stat_buf;
- dbus_bool_t retval;
- BusActivationEntry *tmp_entry;
- DBusString file_path;
- DBusString filename;
-
- retval = TRUE;
- tmp_entry = entry;
-
- _dbus_string_init_const (&filename, entry->filename);
-
- if (!_dbus_string_init (&file_path))
- {
- BUS_SET_OOM (error);
- return FALSE;
- }
-
- if (!_dbus_string_append (&file_path, entry->s_dir->dir_c) ||
- !_dbus_concat_dir_and_file (&file_path, &filename))
- {
- BUS_SET_OOM (error);
- retval = FALSE;
- goto out;
- }
-
- if (!_dbus_stat (&file_path, &stat_buf, NULL))
- {
- _dbus_verbose ("****** Can't stat file \"%s\", removing from cache\n",
- _dbus_string_get_const_data (&file_path));
-
- _dbus_hash_table_remove_string (activation->entries, entry->name);
- _dbus_hash_table_remove_string (entry->s_dir->entries, entry->filename);
-
- tmp_entry = NULL;
- retval = TRUE;
- goto out;
- }
- else
- {
- if (stat_buf.mtime > entry->mtime)
- {
- BusDesktopFile *desktop_file;
- DBusError tmp_error;
-
- dbus_error_init (&tmp_error);
-
- desktop_file = bus_desktop_file_load (&file_path, &tmp_error);
- if (desktop_file == NULL)
- {
- _dbus_verbose ("Could not load %s: %s\n",
- _dbus_string_get_const_data (&file_path),
- tmp_error.message);
- if (dbus_error_has_name (&tmp_error, DBUS_ERROR_NO_MEMORY))
- {
- dbus_move_error (&tmp_error, error);
- retval = FALSE;
- goto out;
- }
- dbus_error_free (&tmp_error);
- retval = TRUE;
- goto out;
- }
-
- /* @todo We can return OOM or a DBUS_ERROR_FAILED error
- * Handle these both better
- */
- if (!update_desktop_file_entry (activation, entry->s_dir, &filename, desktop_file, &tmp_error))
- {
- bus_desktop_file_free (desktop_file);
- if (dbus_error_has_name (&tmp_error, DBUS_ERROR_NO_MEMORY))
- {
- dbus_move_error (&tmp_error, error);
- retval = FALSE;
- goto out;
- }
- dbus_error_free (&tmp_error);
- retval = TRUE;
- goto out;
- }
-
- bus_desktop_file_free (desktop_file);
- retval = TRUE;
- }
- }
-
-out:
- _dbus_string_free (&file_path);
-
- if (updated_entry != NULL)
- *updated_entry = tmp_entry;
- return retval;
-}
-
-
-/* warning: this doesn't fully "undo" itself on failure, i.e. doesn't strip
- * hash entries it already added.
- */
-static dbus_bool_t
-update_directory (BusActivation *activation,
- BusServiceDirectory *s_dir,
- DBusError *error)
-{
- DBusDirIter *iter;
- DBusString dir, filename;
- BusDesktopFile *desktop_file;
- DBusError tmp_error;
- dbus_bool_t retval;
- BusActivationEntry *entry;
- DBusString full_path;
-
- _DBUS_ASSERT_ERROR_IS_CLEAR (error);
-
- iter = NULL;
- desktop_file = NULL;
-
- _dbus_string_init_const (&dir, s_dir->dir_c);
-
- if (!_dbus_string_init (&filename))
- {
- BUS_SET_OOM (error);
- return FALSE;
- }
-
- if (!_dbus_string_init (&full_path))
- {
- BUS_SET_OOM (error);
- _dbus_string_free (&filename);
- return FALSE;
- }
-
- retval = FALSE;
-
- /* from this point it's safe to "goto out" */
-
- iter = _dbus_directory_open (&dir, error);
- if (iter == NULL)
- {
- _dbus_verbose ("Failed to open directory %s: %s\n",
- s_dir->dir_c,
- error ? error->message : "unknown");
- goto out;
- }
-
- /* Now read the files */
- dbus_error_init (&tmp_error);
- while (_dbus_directory_get_next_file (iter, &filename, &tmp_error))
- {
- _dbus_assert (!dbus_error_is_set (&tmp_error));
-
- _dbus_string_set_length (&full_path, 0);
-
- if (!_dbus_string_ends_with_c_str (&filename, ".service"))
- {
- _dbus_verbose ("Skipping non-.service file %s\n",
- _dbus_string_get_const_data (&filename));
- continue;
- }
-
- entry = _dbus_hash_table_lookup_string (s_dir->entries, _dbus_string_get_const_data (&filename));
- if (entry) /* Already has this service file in the cache */
- {
- if (!check_service_file (activation, entry, NULL, error))
- goto out;
-
- continue;
- }
-
- if (!_dbus_string_append (&full_path, s_dir->dir_c) ||
- !_dbus_concat_dir_and_file (&full_path, &filename))
- {
- BUS_SET_OOM (error);
- goto out;
- }
-
- /* New file */
- desktop_file = bus_desktop_file_load (&full_path, &tmp_error);
- if (desktop_file == NULL)
- {
- _dbus_verbose ("Could not load %s: %s\n",
- _dbus_string_get_const_data (&full_path),
- tmp_error.message);
-
- if (dbus_error_has_name (&tmp_error, DBUS_ERROR_NO_MEMORY))
- {
- dbus_move_error (&tmp_error, error);
- goto out;
- }
-
- dbus_error_free (&tmp_error);
- continue;
- }
-
- /* @todo We can return OOM or a DBUS_ERROR_FAILED error
- * Handle these both better
- */
- if (!update_desktop_file_entry (activation, s_dir, &filename, desktop_file, &tmp_error))
- {
- bus_desktop_file_free (desktop_file);
- desktop_file = NULL;
-
- _dbus_verbose ("Could not add %s to activation entry list: %s\n",
- _dbus_string_get_const_data (&full_path), tmp_error.message);
-
- if (dbus_error_has_name (&tmp_error, DBUS_ERROR_NO_MEMORY))
- {
- dbus_move_error (&tmp_error, error);
- goto out;
- }
-
- dbus_error_free (&tmp_error);
- continue;
- }
- else
- {
- bus_desktop_file_free (desktop_file);
- desktop_file = NULL;
- continue;
- }
- }
-
- if (dbus_error_is_set (&tmp_error))
- {
- dbus_move_error (&tmp_error, error);
- goto out;
- }
-
- retval = TRUE;
-
- out:
- if (!retval)
- _DBUS_ASSERT_ERROR_IS_SET (error);
- else
- _DBUS_ASSERT_ERROR_IS_CLEAR (error);
-
- if (iter != NULL)
- _dbus_directory_close (iter);
- _dbus_string_free (&filename);
- _dbus_string_free (&full_path);
-
- return retval;
-}
-
-static dbus_bool_t
-populate_environment (BusActivation *activation)
-{
- DBusString key;
- DBusString value;
- int i;
- char **environment;
- dbus_bool_t retval = FALSE;
-
- environment = _dbus_get_environment ();
-
- if (environment == NULL)
- return FALSE;
-
- if (!_dbus_string_init (&key))
- {
- dbus_free_string_array (environment);
- return FALSE;
- }
-
- if (!_dbus_string_init (&value))
- {
- _dbus_string_free (&key);
- dbus_free_string_array (environment);
- return FALSE;
- }
-
- for (i = 0; environment[i] != NULL; i++)
- {
- if (!_dbus_string_append (&key, environment[i]))
- break;
-
- if (_dbus_string_split_on_byte (&key, '=', &value))
- {
- char *hash_key, *hash_value;
-
- if (!_dbus_string_steal_data (&key, &hash_key))
- break;
-
- if (!_dbus_string_steal_data (&value, &hash_value))
- break;
-
- if (!_dbus_hash_table_insert_string (activation->environment,
- hash_key, hash_value))
- break;
- }
- _dbus_string_set_length (&key, 0);
- _dbus_string_set_length (&value, 0);
- }
-
- if (environment[i] != NULL)
- goto out;
-
- retval = TRUE;
-out:
-
- _dbus_string_free (&key);
- _dbus_string_free (&value);
- dbus_free_string_array (environment);
-
- return retval;
-}
-
-dbus_bool_t
-bus_activation_reload (BusActivation *activation,
- const DBusString *address,
- DBusList **directories,
- DBusError *error)
-{
- DBusList *link;
- char *dir;
-
- if (activation->server_address != NULL)
- dbus_free (activation->server_address);
- if (!_dbus_string_copy_data (address, &activation->server_address))
- {
- BUS_SET_OOM (error);
- goto failed;
- }
-
- if (activation->entries != NULL)
- _dbus_hash_table_unref (activation->entries);
- activation->entries = _dbus_hash_table_new (DBUS_HASH_STRING, NULL,
- (DBusFreeFunction)bus_activation_entry_unref);
- if (activation->entries == NULL)
- {
- BUS_SET_OOM (error);
- goto failed;
- }
-
- if (activation->directories != NULL)
- _dbus_hash_table_unref (activation->directories);
- activation->directories = _dbus_hash_table_new (DBUS_HASH_STRING, NULL,
- (DBusFreeFunction)bus_service_directory_unref);
-
- if (activation->directories == NULL)
- {
- BUS_SET_OOM (error);
- goto failed;
- }
-
- link = _dbus_list_get_first_link (directories);
- while (link != NULL)
- {
- BusServiceDirectory *s_dir;
-
- dir = _dbus_strdup ((const char *) link->data);
- if (!dir)
- {
- BUS_SET_OOM (error);
- goto failed;
- }
-
- s_dir = dbus_new0 (BusServiceDirectory, 1);
- if (!s_dir)
- {
- dbus_free (dir);
- BUS_SET_OOM (error);
- goto failed;
- }
-
- s_dir->refcount = 1;
- s_dir->dir_c = dir;
-
- s_dir->entries = _dbus_hash_table_new (DBUS_HASH_STRING, NULL,
- (DBusFreeFunction)bus_activation_entry_unref);
-
- if (!s_dir->entries)
- {
- bus_service_directory_unref (s_dir);
- BUS_SET_OOM (error);
- goto failed;
- }
-
- if (!_dbus_hash_table_insert_string (activation->directories, s_dir->dir_c, s_dir))
- {
- bus_service_directory_unref (s_dir);
- BUS_SET_OOM (error);
- goto failed;
- }
-
- /* only fail on OOM, it is ok if we can't read the directory */
- if (!update_directory (activation, s_dir, error))
- {
- if (dbus_error_has_name (error, DBUS_ERROR_NO_MEMORY))
- goto failed;
- else
- dbus_error_free (error);
- }
-
- link = _dbus_list_get_next_link (directories, link);
- }
-
- return TRUE;
- failed:
- return FALSE;
-}
-
-BusActivation*
-bus_activation_new (BusContext *context,
- const DBusString *address,
- DBusList **directories,
- DBusError *error)
-{
- BusActivation *activation;
-
- _DBUS_ASSERT_ERROR_IS_CLEAR (error);
-
- activation = dbus_new0 (BusActivation, 1);
- if (activation == NULL)
- {
- BUS_SET_OOM (error);
- return NULL;
- }
-
- activation->refcount = 1;
- activation->context = context;
- activation->n_pending_activations = 0;
-
- if (!bus_activation_reload (activation, address, directories, error))
- goto failed;
-
- /* Initialize this hash table once, we don't want to lose pending
- * activations on reload. */
- activation->pending_activations = _dbus_hash_table_new (DBUS_HASH_STRING, NULL,
- (DBusFreeFunction)bus_pending_activation_unref);
-
- if (activation->pending_activations == NULL)
- {
- BUS_SET_OOM (error);
- goto failed;
- }
-
- activation->environment = _dbus_hash_table_new (DBUS_HASH_STRING,
- (DBusFreeFunction) dbus_free,
- (DBusFreeFunction) dbus_free);
-
- if (activation->environment == NULL)
- {
- BUS_SET_OOM (error);
- goto failed;
- }
-
- if (!populate_environment (activation))
- {
- BUS_SET_OOM (error);
- goto failed;
- }
-
- return activation;
-
- failed:
- bus_activation_unref (activation);
- return NULL;
-}
-
-BusActivation *
-bus_activation_ref (BusActivation *activation)
-{
- _dbus_assert (activation->refcount > 0);
-
- activation->refcount += 1;
-
- return activation;
-}
-
-void
-bus_activation_unref (BusActivation *activation)
-{
- _dbus_assert (activation->refcount > 0);
-
- activation->refcount -= 1;
-
- if (activation->refcount > 0)
- return;
-
- dbus_free (activation->server_address);
- if (activation->entries)
- _dbus_hash_table_unref (activation->entries);
- if (activation->pending_activations)
- _dbus_hash_table_unref (activation->pending_activations);
- if (activation->directories)
- _dbus_hash_table_unref (activation->directories);
- if (activation->environment)
- _dbus_hash_table_unref (activation->environment);
-
- dbus_free (activation);
-}
-
-static dbus_bool_t
-add_bus_environment (BusActivation *activation,
- DBusError *error)
-{
- const char *type;
-
- if (!bus_activation_set_environment_variable (activation,
- "DBUS_STARTER_ADDRESS",
- activation->server_address,
- error))
- return FALSE;
-
- type = bus_context_get_type (activation->context);
- if (type != NULL)
- {
- if (!bus_activation_set_environment_variable (activation,
- "DBUS_STARTER_BUS_TYPE", type,
- error))
- return FALSE;
-
- if (strcmp (type, "session") == 0)
- {
- if (!bus_activation_set_environment_variable (activation,
- "DBUS_SESSION_BUS_ADDRESS",
- activation->server_address,
- error))
- return FALSE;
- }
- else if (strcmp (type, "system") == 0)
- {
- if (!bus_activation_set_environment_variable (activation,
- "DBUS_SYSTEM_BUS_ADDRESS",
- activation->server_address,
- error))
- return FALSE;
- }
- }
-
- return TRUE;
-}
-
-typedef struct
-{
- BusPendingActivation *pending_activation;
- DBusPreallocatedHash *hash_entry;
-} RestorePendingData;
-
-static void
-restore_pending (void *data)
-{
- RestorePendingData *d = data;
-
- _dbus_assert (d->pending_activation != NULL);
- _dbus_assert (d->hash_entry != NULL);
-
- _dbus_verbose ("Restoring pending activation for service %s, has timeout = %d\n",
- d->pending_activation->service_name,
- d->pending_activation->timeout_added);
-
- _dbus_hash_table_insert_string_preallocated (d->pending_activation->activation->pending_activations,
- d->hash_entry,
- d->pending_activation->service_name, d->pending_activation);
-
- bus_pending_activation_ref (d->pending_activation);
-
- d->hash_entry = NULL;
-}
-
-static void
-free_pending_restore_data (void *data)
-{
- RestorePendingData *d = data;
-
- if (d->hash_entry)
- _dbus_hash_table_free_preallocated_entry (d->pending_activation->activation->pending_activations,
- d->hash_entry);
-
- bus_pending_activation_unref (d->pending_activation);
-
- dbus_free (d);
-}
-
-static dbus_bool_t
-add_restore_pending_to_transaction (BusTransaction *transaction,
- BusPendingActivation *pending_activation)
-{
- RestorePendingData *d;
-
- d = dbus_new (RestorePendingData, 1);
- if (d == NULL)
- return FALSE;
-
- d->pending_activation = pending_activation;
- d->hash_entry = _dbus_hash_table_preallocate_entry (d->pending_activation->activation->pending_activations);
-
- bus_pending_activation_ref (d->pending_activation);
-
- if (d->hash_entry == NULL ||
- !bus_transaction_add_cancel_hook (transaction, restore_pending, d,
- free_pending_restore_data))
- {
- free_pending_restore_data (d);
- return FALSE;
- }
-
- _dbus_verbose ("Saved pending activation to be restored if the transaction fails\n");
-
- return TRUE;
-}
-
-dbus_bool_t
-bus_activation_service_created (BusActivation *activation,
- const char *service_name,
- BusTransaction *transaction,
- DBusError *error)
-{
- BusPendingActivation *pending_activation;
- DBusMessage *message;
- DBusList *link;
-
- _DBUS_ASSERT_ERROR_IS_CLEAR (error);
-
- /* Check if it's a pending activation */
- pending_activation = _dbus_hash_table_lookup_string (activation->pending_activations, service_name);
-
- if (!pending_activation)
- return TRUE;
-
- bus_context_log (activation->context,
- DBUS_SYSTEM_LOG_INFO, "Successfully activated service '%s'",
- service_name);
-
- link = _dbus_list_get_first_link (&pending_activation->entries);
- while (link != NULL)
- {
- BusPendingActivationEntry *entry = link->data;
- DBusList *next = _dbus_list_get_next_link (&pending_activation->entries, link);
-
- /* entry->connection is NULL for activating systemd */
- if (entry->connection && dbus_connection_get_is_connected (entry->connection))
- {
- /* Only send activation replies to regular activation requests. */
- if (!entry->auto_activation)
- {
- dbus_uint32_t result;
-
- message = dbus_message_new_method_return (entry->activation_message);
- if (!message)
- {
- BUS_SET_OOM (error);
- goto error;
- }
-
- result = DBUS_START_REPLY_SUCCESS;
-
- if (!dbus_message_append_args (message,
- DBUS_TYPE_UINT32, &result,
- DBUS_TYPE_INVALID))
- {
- dbus_message_unref (message);
- BUS_SET_OOM (error);
- goto error;
- }
-
- if (!bus_transaction_send_from_driver (transaction, entry->connection, message))
- {
- dbus_message_unref (message);
- BUS_SET_OOM (error);
- goto error;
- }
-
- dbus_message_unref (message);
- }
- }
-
- link = next;
- }
-
- return TRUE;
-
- error:
- return FALSE;
-}
-
-dbus_bool_t
-bus_activation_send_pending_auto_activation_messages (BusActivation *activation,
- BusService *service,
- BusTransaction *transaction,
- DBusError *error)
-{
- BusPendingActivation *pending_activation;
- DBusList *link;
-
- _DBUS_ASSERT_ERROR_IS_CLEAR (error);
-
- /* Check if it's a pending activation */
- pending_activation = _dbus_hash_table_lookup_string (activation->pending_activations,
- bus_service_get_name (service));
-
- if (!pending_activation)
- return TRUE;
-
- link = _dbus_list_get_first_link (&pending_activation->entries);
- while (link != NULL)
- {
- BusPendingActivationEntry *entry = link->data;
- DBusList *next = _dbus_list_get_next_link (&pending_activation->entries, link);
-
- if (entry->auto_activation && (entry->connection == NULL || dbus_connection_get_is_connected (entry->connection)))
- {
- DBusConnection *addressed_recipient;
-
- addressed_recipient = bus_service_get_primary_owners_connection (service);
-
- /* Resume dispatching where we left off in bus_dispatch() */
- if (!bus_dispatch_matches (transaction,
- entry->connection,
- addressed_recipient,
- entry->activation_message, error))
- goto error;
- }
-
- link = next;
- }
-
- if (!add_restore_pending_to_transaction (transaction, pending_activation))
- {
- _dbus_verbose ("Could not add cancel hook to transaction to revert removing pending activation\n");
- BUS_SET_OOM (error);
- goto error;
- }
-
- _dbus_hash_table_remove_string (activation->pending_activations, bus_service_get_name (service));
-
- return TRUE;
-
- error:
- return FALSE;
-}
-
-/**
- * FIXME @todo the error messages here would ideally be preallocated
- * so we don't need to allocate memory to send them.
- * Using the usual tactic, prealloc an OOM message, then
- * if we can't alloc the real error send the OOM error instead.
- */
-static dbus_bool_t
-try_send_activation_failure (BusPendingActivation *pending_activation,
- const DBusError *how)
-{
- BusActivation *activation;
- DBusList *link;
- BusTransaction *transaction;
-
- activation = pending_activation->activation;
-
- transaction = bus_transaction_new (activation->context);
- if (transaction == NULL)
- return FALSE;
-
- link = _dbus_list_get_first_link (&pending_activation->entries);
- while (link != NULL)
- {
- BusPendingActivationEntry *entry = link->data;
- DBusList *next = _dbus_list_get_next_link (&pending_activation->entries, link);
-
- if (entry->connection && dbus_connection_get_is_connected (entry->connection))
- {
- if (!bus_transaction_send_error_reply (transaction,
- entry->connection,
- how,
- entry->activation_message))
- goto error;
- }
-
- link = next;
- }
-
- bus_transaction_execute_and_free (transaction);
-
- return TRUE;
-
- error:
- if (transaction)
- bus_transaction_cancel_and_free (transaction);
- return FALSE;
-}
-
-/**
- * Free the pending activation and send an error message to all the
- * connections that were waiting for it.
- */
-static void
-pending_activation_failed (BusPendingActivation *pending_activation,
- const DBusError *how)
-{
- /* FIXME use preallocated OOM messages instead of bus_wait_for_memory() */
- while (!try_send_activation_failure (pending_activation, how))
- _dbus_wait_for_memory ();
-
- /* Destroy this pending activation */
- _dbus_hash_table_remove_string (pending_activation->activation->pending_activations,
- pending_activation->service_name);
-}
-
-/**
- * Depending on the exit code of the helper, set the error accordingly
- */
-static void
-handle_servicehelper_exit_error (int exit_code,
- DBusError *error)
-{
- switch (exit_code)
- {
- case BUS_SPAWN_EXIT_CODE_CONFIG_INVALID:
- dbus_set_error (error, DBUS_ERROR_SPAWN_CONFIG_INVALID,
- "Invalid configuration (missing or empty <user>?)");
- break;
- case BUS_SPAWN_EXIT_CODE_NO_MEMORY:
- dbus_set_error (error, DBUS_ERROR_NO_MEMORY,
- "Launcher could not run (out of memory)");
- break;
- case BUS_SPAWN_EXIT_CODE_SETUP_FAILED:
- dbus_set_error (error, DBUS_ERROR_SPAWN_SETUP_FAILED,
- "Failed to setup environment correctly");
- break;
- case BUS_SPAWN_EXIT_CODE_NAME_INVALID:
- dbus_set_error (error, DBUS_ERROR_SPAWN_SERVICE_INVALID,
- "Bus name is not valid or missing");
- break;
- case BUS_SPAWN_EXIT_CODE_SERVICE_NOT_FOUND:
- dbus_set_error (error, DBUS_ERROR_SPAWN_SERVICE_NOT_FOUND,
- "Bus name not found in system service directory");
- break;
- case BUS_SPAWN_EXIT_CODE_PERMISSIONS_INVALID:
- dbus_set_error (error, DBUS_ERROR_SPAWN_PERMISSIONS_INVALID,
- "The permission of the setuid helper is not correct");
- break;
- case BUS_SPAWN_EXIT_CODE_FILE_INVALID:
- dbus_set_error (error, DBUS_ERROR_SPAWN_PERMISSIONS_INVALID,
- "The service file is incorrect or does not have all required attributes");
- break;
- case BUS_SPAWN_EXIT_CODE_EXEC_FAILED:
- dbus_set_error (error, DBUS_ERROR_SPAWN_EXEC_FAILED,
- "Cannot launch daemon, file not found or permissions invalid");
- break;
- case BUS_SPAWN_EXIT_CODE_INVALID_ARGS:
- dbus_set_error (error, DBUS_ERROR_INVALID_ARGS,
- "Invalid arguments to command line");
- break;
- case BUS_SPAWN_EXIT_CODE_CHILD_SIGNALED:
- dbus_set_error (error, DBUS_ERROR_SPAWN_CHILD_SIGNALED,
- "Launched child was signaled, it probably crashed");
- break;
- case BUS_SPAWN_EXIT_CODE_GENERIC_FAILURE:
- default:
- dbus_set_error (error, DBUS_ERROR_SPAWN_CHILD_EXITED,
- "Launch helper exited with unknown return code %i", exit_code);
- break;
- }
-}
-
-static void
-pending_activation_finished_cb (DBusBabysitter *babysitter,
- void *data)
-{
- BusPendingActivation *pending_activation = data;
- dbus_bool_t uses_servicehelper;
-
- _dbus_assert (babysitter == pending_activation->babysitter);
- _dbus_babysitter_ref (babysitter);
-
- /* There are two major cases here; are we the system bus or the session? Here this
- * is distinguished by whether or not we use a setuid helper launcher. With the launch helper,
- * some process exit codes are meaningful, processed by handle_servicehelper_exit_error.
- *
- * In both cases though, just ignore when a process exits with status 0; it's possible for
- * a program to (misguidedly) "daemonize", and that appears to us as an exit. This closes a race
- * condition between this code and the child process claiming the bus name.
- */
- uses_servicehelper = bus_context_get_servicehelper (pending_activation->activation->context) != NULL;
-
- /* strictly speaking this is redundant with the check in dbus-spawn now */
- if (_dbus_babysitter_get_child_exited (babysitter))
- {
- DBusError error;
- DBusHashIter iter;
- dbus_bool_t activation_failed;
- int exit_code = 0;
-
- dbus_error_init (&error);
-
- _dbus_babysitter_set_child_exit_error (babysitter, &error);
-
- /* Explicitly check for SPAWN_CHILD_EXITED to avoid overwriting an
- * exec error */
- if (dbus_error_has_name (&error, DBUS_ERROR_SPAWN_CHILD_EXITED)
- && _dbus_babysitter_get_child_exit_status (babysitter, &exit_code))
- {
- activation_failed = exit_code != 0;
-
- dbus_error_free(&error);
-
- if (activation_failed)
- {
- if (uses_servicehelper)
- handle_servicehelper_exit_error (exit_code, &error);
- else
- _dbus_babysitter_set_child_exit_error (babysitter, &error);
- }
- }
- else
- {
- activation_failed = TRUE;
- }
-
- if (activation_failed)
- {
- bus_context_log (pending_activation->activation->context,
- DBUS_SYSTEM_LOG_INFO, "Activated service '%s' failed: %s",
- pending_activation->service_name,
- error.message);
-
- /* Destroy all pending activations with the same exec */
- _dbus_hash_iter_init (pending_activation->activation->pending_activations,
- &iter);
- while (_dbus_hash_iter_next (&iter))
- {
- BusPendingActivation *p = _dbus_hash_iter_get_value (&iter);
-
- if (p != pending_activation && strcmp (p->exec, pending_activation->exec) == 0)
- pending_activation_failed (p, &error);
- }
-
- /* Destroys the pending activation */
- pending_activation_failed (pending_activation, &error);
-
- dbus_error_free (&error);
- }
- }
-
- _dbus_babysitter_unref (babysitter);
-}
-
-static dbus_bool_t
-add_babysitter_watch (DBusWatch *watch,
- void *data)
-{
- BusPendingActivation *pending_activation = data;
-
- return _dbus_loop_add_watch (
- bus_context_get_loop (pending_activation->activation->context),
- watch);
-}
-
-static void
-remove_babysitter_watch (DBusWatch *watch,
- void *data)
-{
- BusPendingActivation *pending_activation = data;
-
- _dbus_loop_remove_watch (bus_context_get_loop (pending_activation->activation->context),
- watch);
-}
-
-static void
-toggle_babysitter_watch (DBusWatch *watch,
- void *data)
-{
- BusPendingActivation *pending_activation = data;
-
- _dbus_loop_toggle_watch (bus_context_get_loop (pending_activation->activation->context),
- watch);
-}
-
-static dbus_bool_t
-pending_activation_timed_out (void *data)
-{
- BusPendingActivation *pending_activation = data;
- DBusError error;
-
- /* Kill the spawned process, since it sucks
- * (not sure this is what we want to do, but
- * may as well try it for now)
- */
- if (pending_activation->babysitter)
- _dbus_babysitter_kill_child (pending_activation->babysitter);
-
- dbus_error_init (&error);
-
- dbus_set_error (&error, DBUS_ERROR_TIMED_OUT,
- "Activation of %s timed out",
- pending_activation->service_name);
- bus_context_log (pending_activation->activation->context,
- DBUS_SYSTEM_LOG_INFO,
- "Failed to activate service '%s': timed out",
- pending_activation->service_name);
-
- pending_activation_failed (pending_activation, &error);
-
- dbus_error_free (&error);
-
- return TRUE;
-}
-
-static void
-cancel_pending (void *data)
-{
- BusPendingActivation *pending_activation = data;
-
- _dbus_verbose ("Canceling pending activation of %s\n",
- pending_activation->service_name);
-
- if (pending_activation->babysitter)
- _dbus_babysitter_kill_child (pending_activation->babysitter);
-
- _dbus_hash_table_remove_string (pending_activation->activation->pending_activations,
- pending_activation->service_name);
-}
-
-static void
-free_pending_cancel_data (void *data)
-{
- BusPendingActivation *pending_activation = data;
-
- bus_pending_activation_unref (pending_activation);
-}
-
-static dbus_bool_t
-add_cancel_pending_to_transaction (BusTransaction *transaction,
- BusPendingActivation *pending_activation)
-{
- if (!bus_transaction_add_cancel_hook (transaction, cancel_pending,
- pending_activation,
- free_pending_cancel_data))
- return FALSE;
-
- bus_pending_activation_ref (pending_activation);
-
- _dbus_verbose ("Saved pending activation to be canceled if the transaction fails\n");
-
- return TRUE;
-}
-
-static dbus_bool_t
-update_service_cache (BusActivation *activation, DBusError *error)
-{
- DBusHashIter iter;
-
- _dbus_hash_iter_init (activation->directories, &iter);
- while (_dbus_hash_iter_next (&iter))
- {
- DBusError tmp_error;
- BusServiceDirectory *s_dir;
-
- s_dir = _dbus_hash_iter_get_value (&iter);
-
- dbus_error_init (&tmp_error);
- if (!update_directory (activation, s_dir, &tmp_error))
- {
- if (dbus_error_has_name (&tmp_error, DBUS_ERROR_NO_MEMORY))
- {
- dbus_move_error (&tmp_error, error);
- return FALSE;
- }
-
- dbus_error_free (&tmp_error);
- continue;
- }
- }
-
- return TRUE;
-}
-
-static BusActivationEntry *
-activation_find_entry (BusActivation *activation,
- const char *service_name,
- DBusError *error)
-{
- BusActivationEntry *entry;
-
- entry = _dbus_hash_table_lookup_string (activation->entries, service_name);
- if (!entry)
- {
- if (!update_service_cache (activation, error))
- return NULL;
-
- entry = _dbus_hash_table_lookup_string (activation->entries,
- service_name);
- }
- else
- {
- BusActivationEntry *updated_entry;
-
- if (!check_service_file (activation, entry, &updated_entry, error))
- return NULL;
-
- entry = updated_entry;
- }
-
- if (!entry)
- {
- dbus_set_error (error, DBUS_ERROR_SERVICE_UNKNOWN,
- "The name %s was not provided by any .service files",
- service_name);
- return NULL;
- }
-
- return entry;
-}
-
-static char **
-bus_activation_get_environment (BusActivation *activation)
-{
- char **environment;
- int i, length;
- DBusString entry;
- DBusHashIter iter;
-
- length = _dbus_hash_table_get_n_entries (activation->environment);
-
- environment = dbus_new0 (char *, length + 1);
-
- if (environment == NULL)
- return NULL;
-
- i = 0;
- _dbus_hash_iter_init (activation->environment, &iter);
-
- if (!_dbus_string_init (&entry))
- {
- dbus_free_string_array (environment);
- return NULL;
- }
-
- while (_dbus_hash_iter_next (&iter))
- {
- const char *key, *value;
-
- key = (const char *) _dbus_hash_iter_get_string_key (&iter);
- value = (const char *) _dbus_hash_iter_get_value (&iter);
-
- if (!_dbus_string_append_printf (&entry, "%s=%s", key, value))
- break;
-
- if (!_dbus_string_steal_data (&entry, environment + i))
- break;
- i++;
- }
-
- _dbus_string_free (&entry);
-
- if (i != length)
- {
- dbus_free_string_array (environment);
- environment = NULL;
- }
-
- return environment;
-}
-
-dbus_bool_t
-bus_activation_set_environment_variable (BusActivation *activation,
- const char *key,
- const char *value,
- DBusError *error)
-{
- char *hash_key;
- char *hash_value;
- dbus_bool_t retval;
-
- retval = FALSE;
- hash_key = NULL;
- hash_value = NULL;
- hash_key = _dbus_strdup (key);
-
- if (hash_key == NULL)
- goto out;
-
- hash_value = _dbus_strdup (value);
-
- if (hash_value == NULL)
- goto out;
-
- if (!_dbus_hash_table_insert_string (activation->environment,
- hash_key, hash_value))
- goto out;
-
- retval = TRUE;
-out:
- if (retval == FALSE)
- {
- dbus_free (hash_key);
- dbus_free (hash_value);
- BUS_SET_OOM (error);
- }
-
- return retval;
-}
-
-dbus_bool_t
-bus_activation_activate_service (BusActivation *activation,
- DBusConnection *connection,
- BusTransaction *transaction,
- dbus_bool_t auto_activation,
- DBusMessage *activation_message,
- const char *service_name,
- DBusError *error)
-{
- DBusError tmp_error;
- BusActivationEntry *entry;
- BusPendingActivation *pending_activation;
- BusPendingActivationEntry *pending_activation_entry;
- DBusMessage *message;
- DBusString service_str;
- const char *servicehelper;
- char **argv;
- char **envp = NULL;
- int argc;
- dbus_bool_t retval;
- dbus_bool_t was_pending_activation;
- DBusString command;
-
- _DBUS_ASSERT_ERROR_IS_CLEAR (error);
-
- if (activation->n_pending_activations >=
- bus_context_get_max_pending_activations (activation->context))
- {
- dbus_set_error (error, DBUS_ERROR_LIMITS_EXCEEDED,
- "The maximum number of pending activations has been reached, activation of %s failed",
- service_name);
- return FALSE;
- }
-
- entry = activation_find_entry (activation, service_name, error);
- if (!entry)
- return FALSE;
-
- /* Bypass the registry lookup if we're auto-activating, bus_dispatch would not
- * call us if the service is already active.
- */
- if (!auto_activation)
- {
- /* Check if the service is active */
- _dbus_string_init_const (&service_str, service_name);
- if (bus_registry_lookup (bus_context_get_registry (activation->context), &service_str) != NULL)
- {
- dbus_uint32_t result;
-
- _dbus_verbose ("Service \"%s\" is already active\n", service_name);
-
- message = dbus_message_new_method_return (activation_message);
-
- if (!message)
- {
- _dbus_verbose ("No memory to create reply to activate message\n");
- BUS_SET_OOM (error);
- return FALSE;
- }
-
- result = DBUS_START_REPLY_ALREADY_RUNNING;
-
- if (!dbus_message_append_args (message,
- DBUS_TYPE_UINT32, &result,
- DBUS_TYPE_INVALID))
- {
- _dbus_verbose ("No memory to set args of reply to activate message\n");
- BUS_SET_OOM (error);
- dbus_message_unref (message);
- return FALSE;
- }
-
- retval = bus_transaction_send_from_driver (transaction, connection, message);
- dbus_message_unref (message);
- if (!retval)
- {
- _dbus_verbose ("Failed to send reply\n");
- BUS_SET_OOM (error);
- }
-
- return retval;
- }
- }
-
- pending_activation_entry = dbus_new0 (BusPendingActivationEntry, 1);
- if (!pending_activation_entry)
- {
- _dbus_verbose ("Failed to create pending activation entry\n");
- BUS_SET_OOM (error);
- return FALSE;
- }
-
- pending_activation_entry->auto_activation = auto_activation;
-
- pending_activation_entry->activation_message = activation_message;
- dbus_message_ref (activation_message);
- pending_activation_entry->connection = connection;
- if (connection)
- dbus_connection_ref (connection);
-
- /* Check if the service is being activated */
- pending_activation = _dbus_hash_table_lookup_string (activation->pending_activations, service_name);
- was_pending_activation = (pending_activation != NULL);
- if (was_pending_activation)
- {
- if (!_dbus_list_append (&pending_activation->entries, pending_activation_entry))
- {
- _dbus_verbose ("Failed to append a new entry to pending activation\n");
-
- BUS_SET_OOM (error);
- bus_pending_activation_entry_free (pending_activation_entry);
- return FALSE;
- }
-
- pending_activation->n_entries += 1;
- pending_activation->activation->n_pending_activations += 1;
- }
- else
- {
- pending_activation = dbus_new0 (BusPendingActivation, 1);
- if (!pending_activation)
- {
- _dbus_verbose ("Failed to create pending activation\n");
-
- BUS_SET_OOM (error);
- bus_pending_activation_entry_free (pending_activation_entry);
- return FALSE;
- }
-
- pending_activation->activation = activation;
- pending_activation->refcount = 1;
-
- pending_activation->service_name = _dbus_strdup (service_name);
- if (!pending_activation->service_name)
- {
- _dbus_verbose ("Failed to copy service name for pending activation\n");
-
- BUS_SET_OOM (error);
- bus_pending_activation_unref (pending_activation);
- bus_pending_activation_entry_free (pending_activation_entry);
- return FALSE;
- }
-
- pending_activation->exec = _dbus_strdup (entry->exec);
- if (!pending_activation->exec)
- {
- _dbus_verbose ("Failed to copy service exec for pending activation\n");
- BUS_SET_OOM (error);
- bus_pending_activation_unref (pending_activation);
- bus_pending_activation_entry_free (pending_activation_entry);
- return FALSE;
- }
-
- if (entry->systemd_service)
- {
- pending_activation->systemd_service = _dbus_strdup (entry->systemd_service);
- if (!pending_activation->systemd_service)
- {
- _dbus_verbose ("Failed to copy systemd service for pending activation\n");
- BUS_SET_OOM (error);
- bus_pending_activation_unref (pending_activation);
- bus_pending_activation_entry_free (pending_activation_entry);
- return FALSE;
- }
- }
-
- pending_activation->timeout =
- _dbus_timeout_new (bus_context_get_activation_timeout (activation->context),
- pending_activation_timed_out,
- pending_activation,
- NULL);
- if (!pending_activation->timeout)
- {
- _dbus_verbose ("Failed to create timeout for pending activation\n");
-
- BUS_SET_OOM (error);
- bus_pending_activation_unref (pending_activation);
- bus_pending_activation_entry_free (pending_activation_entry);
- return FALSE;
- }
-
- if (!_dbus_loop_add_timeout (bus_context_get_loop (activation->context),
- pending_activation->timeout))
- {
- _dbus_verbose ("Failed to add timeout for pending activation\n");
-
- BUS_SET_OOM (error);
- bus_pending_activation_unref (pending_activation);
- bus_pending_activation_entry_free (pending_activation_entry);
- return FALSE;
- }
-
- pending_activation->timeout_added = TRUE;
-
- if (!_dbus_list_append (&pending_activation->entries, pending_activation_entry))
- {
- _dbus_verbose ("Failed to add entry to just-created pending activation\n");
-
- BUS_SET_OOM (error);
- bus_pending_activation_unref (pending_activation);
- bus_pending_activation_entry_free (pending_activation_entry);
- return FALSE;
- }
-
- pending_activation->n_entries += 1;
- pending_activation->activation->n_pending_activations += 1;
-
- if (!_dbus_hash_table_insert_string (activation->pending_activations,
- pending_activation->service_name,
- pending_activation))
- {
- _dbus_verbose ("Failed to put pending activation in hash table\n");
-
- BUS_SET_OOM (error);
- bus_pending_activation_unref (pending_activation);
- return FALSE;
- }
- }
-
- if (!add_cancel_pending_to_transaction (transaction, pending_activation))
- {
- _dbus_verbose ("Failed to add pending activation cancel hook to transaction\n");
- BUS_SET_OOM (error);
- _dbus_hash_table_remove_string (activation->pending_activations,
- pending_activation->service_name);
-
- return FALSE;
- }
-
- if (was_pending_activation)
- return TRUE;
-
- if (bus_context_get_systemd_activation (activation->context))
- {
- if (strcmp (service_name, "org.freedesktop.systemd1") == 0)
- /* systemd itself is missing apparently. That can happen
- only during early startup. Let's just wait until systemd
- connects to us and do nothing. */
- return TRUE;
-
- if (entry->systemd_service)
- {
- BusTransaction *activation_transaction;
- DBusString service_string;
- BusService *service;
- BusRegistry *registry;
-
- /* OK, we have a systemd service configured for this entry,
- hence let's enqueue an activation request message. This
- is implemented as a directed signal, not a method call,
- for three reasons: 1) we don't expect a response on
- success, where we just expect a name appearing on the
- bus; 2) at this time the systemd service might not yet
- have connected, so we wouldn't know the message serial at
- this point to set up a pending call; 3) it is ugly if the
- bus suddenly becomes the caller of a remote method. */
-
- message = dbus_message_new_signal (DBUS_PATH_DBUS,
- "org.freedesktop.systemd1.Activator",
- "ActivationRequest");
- if (!message)
- {
- _dbus_verbose ("No memory to create activation message\n");
- BUS_SET_OOM (error);
- return FALSE;
- }
-
- if (!dbus_message_set_sender (message, DBUS_SERVICE_DBUS) ||
- !dbus_message_set_destination (message, "org.freedesktop.systemd1") ||
- !dbus_message_append_args (message,
- DBUS_TYPE_STRING, &entry->systemd_service,
- DBUS_TYPE_INVALID))
- {
- _dbus_verbose ("No memory to set args of activation message\n");
- dbus_message_unref (message);
- BUS_SET_OOM (error);
- return FALSE;
- }
-
- /* Create our transaction */
- activation_transaction = bus_transaction_new (activation->context);
- if (activation_transaction == NULL)
- {
- _dbus_verbose ("No memory to create activation transaction\n");
- dbus_message_unref (message);
- BUS_SET_OOM (error);
- return FALSE;
- }
-
- /* Check whether systemd is already connected */
- registry = bus_connection_get_registry (connection);
- _dbus_string_init_const (&service_string, "org.freedesktop.systemd1");
- service = bus_registry_lookup (registry, &service_string);
-
- if (service != NULL)
- {
- bus_context_log (activation->context,
- DBUS_SYSTEM_LOG_INFO, "Activating via systemd: service name='%s' unit='%s'",
- service_name,
- entry->systemd_service);
- /* Wonderful, systemd is connected, let's just send the msg */
- retval = bus_dispatch_matches (activation_transaction, NULL, bus_service_get_primary_owners_connection (service),
- message, error);
- }
- else
- {
- bus_context_log (activation->context,
- DBUS_SYSTEM_LOG_INFO, "Activating systemd to hand-off: service name='%s' unit='%s'",
- service_name,
- entry->systemd_service);
- /* systemd is not around, let's "activate" it. */
- retval = bus_activation_activate_service (activation, NULL, activation_transaction, TRUE,
- message, "org.freedesktop.systemd1", error);
- }
-
- dbus_message_unref (message);
-
- if (!retval)
- {
- bus_context_log (activation->context,
- DBUS_SYSTEM_LOG_INFO, "Failed to activate via systemd: service name='%s' unit='%s'",
- service_name,
- entry->systemd_service);
- _DBUS_ASSERT_ERROR_IS_SET (error);
- _dbus_verbose ("failed to send activation message: %s\n", error->name);
- bus_transaction_cancel_and_free (activation_transaction);
- return FALSE;
- }
-
- bus_transaction_execute_and_free (activation_transaction);
- return TRUE;
- }
-
- /* OK, we have no configured systemd service, hence let's
- proceed with traditional activation. */
- }
-
- /* use command as system and session different */
- if (!_dbus_string_init (&command))
- {
- BUS_SET_OOM (error);
- return FALSE;
- }
-
- /* does the bus use a helper? */
- servicehelper = bus_context_get_servicehelper (activation->context);
- if (servicehelper != NULL)
- {
- if (entry->user == NULL)
- {
- _dbus_string_free (&command);
- dbus_set_error (error, DBUS_ERROR_SPAWN_FILE_INVALID,
- "Cannot do system-bus activation with no user\n");
- return FALSE;
- }
-
- /* join the helper path and the service name */
- if (!_dbus_string_append (&command, servicehelper))
- {
- _dbus_string_free (&command);
- BUS_SET_OOM (error);
- return FALSE;
- }
- if (!_dbus_string_append (&command, " "))
- {
- _dbus_string_free (&command);
- BUS_SET_OOM (error);
- return FALSE;
- }
- if (!_dbus_string_append (&command, service_name))
- {
- _dbus_string_free (&command);
- BUS_SET_OOM (error);
- return FALSE;
- }
- }
- else
- {
- /* the bus does not use a helper, so we can append arguments with the exec line */
- if (!_dbus_string_append (&command, entry->exec))
- {
- _dbus_string_free (&command);
- BUS_SET_OOM (error);
- return FALSE;
- }
- }
-
- /* convert command into arguments */
- if (!_dbus_shell_parse_argv (_dbus_string_get_const_data (&command), &argc, &argv, error))
- {
- _dbus_verbose ("Failed to parse command line: %s\n", entry->exec);
- _DBUS_ASSERT_ERROR_IS_SET (error);
-
- _dbus_hash_table_remove_string (activation->pending_activations,
- pending_activation->service_name);
-
- _dbus_string_free (&command);
- return FALSE;
- }
- _dbus_string_free (&command);
-
- if (!add_bus_environment (activation, error))
- {
- _DBUS_ASSERT_ERROR_IS_SET (error);
- dbus_free_string_array (argv);
- return FALSE;
- }
-
- envp = bus_activation_get_environment (activation);
-
- if (envp == NULL)
- {
- BUS_SET_OOM (error);
- dbus_free_string_array (argv);
- return FALSE;
- }
-
- _dbus_verbose ("Spawning %s ...\n", argv[0]);
- if (servicehelper != NULL)
- bus_context_log (activation->context,
- DBUS_SYSTEM_LOG_INFO, "Activating service name='%s' (using servicehelper)",
- service_name);
- else
- bus_context_log (activation->context,
- DBUS_SYSTEM_LOG_INFO, "Activating service name='%s'",
- service_name);
-
- dbus_error_init (&tmp_error);
-
- if (!_dbus_spawn_async_with_babysitter (&pending_activation->babysitter,
- service_name,
- argv,
- envp,
- NULL, activation,
- &tmp_error))
- {
- _dbus_verbose ("Failed to spawn child\n");
- bus_context_log (activation->context,
- DBUS_SYSTEM_LOG_INFO, "Failed to activate service %s: %s",
- service_name,
- tmp_error.message);
- _DBUS_ASSERT_ERROR_IS_SET (&tmp_error);
- dbus_move_error (&tmp_error, error);
- dbus_free_string_array (argv);
- dbus_free_string_array (envp);
-
- return FALSE;
- }
-
- dbus_free_string_array (argv);
- envp = NULL;
-
- _dbus_assert (pending_activation->babysitter != NULL);
-
- _dbus_babysitter_set_result_function (pending_activation->babysitter,
- pending_activation_finished_cb,
- pending_activation);
-
- if (!_dbus_babysitter_set_watch_functions (pending_activation->babysitter,
- add_babysitter_watch,
- remove_babysitter_watch,
- toggle_babysitter_watch,
- pending_activation,
- NULL))
- {
- BUS_SET_OOM (error);
- _dbus_verbose ("Failed to set babysitter watch functions\n");
- return FALSE;
- }
-
- return TRUE;
-}
-
-dbus_bool_t
-bus_activation_list_services (BusActivation *activation,
- char ***listp,
- int *array_len)
-{
- int i, j, len;
- char **retval;
- DBusHashIter iter;
-
- len = _dbus_hash_table_get_n_entries (activation->entries);
- retval = dbus_new (char *, len + 1);
-
- if (retval == NULL)
- return FALSE;
-
- _dbus_hash_iter_init (activation->entries, &iter);
- i = 0;
- while (_dbus_hash_iter_next (&iter))
- {
- BusActivationEntry *entry = _dbus_hash_iter_get_value (&iter);
-
- retval[i] = _dbus_strdup (entry->name);
- if (retval[i] == NULL)
- goto error;
-
- i++;
- }
-
- retval[i] = NULL;
-
- if (array_len)
- *array_len = len;
-
- *listp = retval;
- return TRUE;
-
- error:
- for (j = 0; j < i; j++)
- dbus_free (retval[i]);
- dbus_free (retval);
-
- return FALSE;
-}
-
-dbus_bool_t
-dbus_activation_systemd_failure (BusActivation *activation,
- DBusMessage *message)
-{
- DBusError error;
- const char *code, *str, *unit = NULL;
-
- dbus_error_init(&error);
-
- /* This is called whenever the systemd activator sent us a
- response. We'll invalidate all pending activations that match the
- unit name. */
-
- if (dbus_message_get_args (message, &error,
- DBUS_TYPE_STRING, &unit,
- DBUS_TYPE_STRING, &code,
- DBUS_TYPE_STRING, &str,
- DBUS_TYPE_INVALID))
- dbus_set_error(&error, code, str);
-
-
- if (unit)
- {
- DBusHashIter iter;
-
- bus_context_log (activation->context,
- DBUS_SYSTEM_LOG_INFO, "Activation via systemd failed for unit '%s': %s",
- unit,
- str);
-
- _dbus_hash_iter_init (activation->pending_activations,
- &iter);
-
- while (_dbus_hash_iter_next (&iter))
- {
- BusPendingActivation *p = _dbus_hash_iter_get_value (&iter);
-
- if (p->systemd_service && strcmp (p->systemd_service, unit) == 0)
- pending_activation_failed(p, &error);
- }
- }
-
- dbus_error_free(&error);
-
- return TRUE;
-}
-
-#ifdef DBUS_ENABLE_EMBEDDED_TESTS
-
-#include <stdio.h>
-
-#define SERVICE_NAME_1 "MyService1"
-#define SERVICE_NAME_2 "MyService2"
-#define SERVICE_NAME_3 "MyService3"
-
-#define SERVICE_FILE_1 "service-1.service"
-#define SERVICE_FILE_2 "service-2.service"
-#define SERVICE_FILE_3 "service-3.service"
-
-static dbus_bool_t
-test_create_service_file (DBusString *dir,
- const char *filename,
- const char *name,
- const char *exec)
-{
- DBusString file_name, full_path;
- FILE *file;
- dbus_bool_t ret_val;
-
- ret_val = TRUE;
- _dbus_string_init_const (&file_name, filename);
-
- if (!_dbus_string_init (&full_path))
- return FALSE;
-
- if (!_dbus_string_append (&full_path, _dbus_string_get_const_data (dir)) ||
- !_dbus_concat_dir_and_file (&full_path, &file_name))
- {
- ret_val = FALSE;
- goto out;
- }
-
- file = fopen (_dbus_string_get_const_data (&full_path), "w");
- if (!file)
- {
- ret_val = FALSE;
- goto out;
- }
-
- fprintf (file, "[D-BUS Service]\nName=%s\nExec=%s\n", name, exec);
- fclose (file);
-
-out:
- _dbus_string_free (&full_path);
- return ret_val;
-}
-
-static dbus_bool_t
-test_remove_service_file (DBusString *dir, const char *filename)
-{
- DBusString file_name, full_path;
- dbus_bool_t ret_val;
-
- ret_val = TRUE;
-
- _dbus_string_init_const (&file_name, filename);
-
- if (!_dbus_string_init (&full_path))
- return FALSE;
-
- if (!_dbus_string_append (&full_path, _dbus_string_get_const_data (dir)) ||
- !_dbus_concat_dir_and_file (&full_path, &file_name))
- {
- ret_val = FALSE;
- goto out;
- }
-
- if (!_dbus_delete_file (&full_path, NULL))
- {
- ret_val = FALSE;
- goto out;
- }
-
-out:
- _dbus_string_free (&full_path);
- return ret_val;
-}
-
-static dbus_bool_t
-test_remove_directory (DBusString *dir)
-{
- DBusDirIter *iter;
- DBusString filename, full_path;
- dbus_bool_t ret_val;
-
- ret_val = TRUE;
-
- if (!_dbus_string_init (&filename))
- return FALSE;
-
- if (!_dbus_string_init (&full_path))
- {
- _dbus_string_free (&filename);
- return FALSE;
- }
-
- iter = _dbus_directory_open (dir, NULL);
- if (iter == NULL)
- {
- ret_val = FALSE;
- goto out;
- }
-
- while (_dbus_directory_get_next_file (iter, &filename, NULL))
- {
- if (!test_remove_service_file (dir, _dbus_string_get_const_data (&filename)))
- {
- ret_val = FALSE;
- goto out;
- }
- }
- _dbus_directory_close (iter);
-
- if (!_dbus_delete_directory (dir, NULL))
- {
- ret_val = FALSE;
- goto out;
- }
-
-out:
- _dbus_string_free (&filename);
- _dbus_string_free (&full_path);
-
- return ret_val;
-}
-
-static dbus_bool_t
-init_service_reload_test (DBusString *dir)
-{
- DBusStat stat_buf;
-
- if (!_dbus_stat (dir, &stat_buf, NULL))
- {
- if (!_dbus_create_directory (dir, NULL))
- return FALSE;
- }
- else
- {
- if (!test_remove_directory (dir))
- return FALSE;
-
- if (!_dbus_create_directory (dir, NULL))
- return FALSE;
- }
-
- /* Create one initial file */
- if (!test_create_service_file (dir, SERVICE_FILE_1, SERVICE_NAME_1, "exec-1"))
- return FALSE;
-
- return TRUE;
-}
-
-static dbus_bool_t
-cleanup_service_reload_test (DBusString *dir)
-{
- if (!test_remove_directory (dir))
- return FALSE;
-
- return TRUE;
-}
-
-typedef struct
-{
- BusActivation *activation;
- const char *service_name;
- dbus_bool_t expecting_find;
-} CheckData;
-
-static dbus_bool_t
-check_func (void *data)
-{
- CheckData *d;
- BusActivationEntry *entry;
- DBusError error;
- dbus_bool_t ret_val;
-
- ret_val = TRUE;
- d = data;
-
- dbus_error_init (&error);
-
- entry = activation_find_entry (d->activation, d->service_name, &error);
- if (entry == NULL)
- {
- if (dbus_error_has_name (&error, DBUS_ERROR_NO_MEMORY))
- {
- ret_val = TRUE;
- }
- else
- {
- if (d->expecting_find)
- ret_val = FALSE;
- }
-
- dbus_error_free (&error);
- }
- else
- {
- if (!d->expecting_find)
- ret_val = FALSE;
- }
-
- return ret_val;
-}
-
-static dbus_bool_t
-do_test (const char *description, dbus_bool_t oom_test, CheckData *data)
-{
- dbus_bool_t err;
-
- if (oom_test)
- err = !_dbus_test_oom_handling (description, check_func, data);
- else
- err = !check_func (data);
-
- if (err)
- _dbus_assert_not_reached ("Test failed");
-
- return TRUE;
-}
-
-static dbus_bool_t
-do_service_reload_test (DBusString *dir, dbus_bool_t oom_test)
-{
- BusActivation *activation;
- DBusString address;
- DBusList *directories;
- CheckData d;
-
- directories = NULL;
- _dbus_string_init_const (&address, "");
-
- if (!_dbus_list_append (&directories, _dbus_string_get_data (dir)))
- return FALSE;
-
- activation = bus_activation_new (NULL, &address, &directories, NULL);
- if (!activation)
- return FALSE;
-
- d.activation = activation;
-
- /* Check for existing service file */
- d.expecting_find = TRUE;
- d.service_name = SERVICE_NAME_1;
-
- if (!do_test ("Existing service file", oom_test, &d))
- return FALSE;
-
- /* Check for non-existing service file */
- d.expecting_find = FALSE;
- d.service_name = SERVICE_NAME_3;
-
- if (!do_test ("Nonexisting service file", oom_test, &d))
- return FALSE;
-
- /* Check for added service file */
- if (!test_create_service_file (dir, SERVICE_FILE_2, SERVICE_NAME_2, "exec-2"))
- return FALSE;
-
- d.expecting_find = TRUE;
- d.service_name = SERVICE_NAME_2;
-
- if (!do_test ("Added service file", oom_test, &d))
- return FALSE;
-
- /* Check for removed service file */
- if (!test_remove_service_file (dir, SERVICE_FILE_2))
- return FALSE;
-
- d.expecting_find = FALSE;
- d.service_name = SERVICE_FILE_2;
-
- if (!do_test ("Removed service file", oom_test, &d))
- return FALSE;
-
- /* Check for updated service file */
-
- _dbus_sleep_milliseconds (1000); /* Sleep a second to make sure the mtime is updated */
-
- if (!test_create_service_file (dir, SERVICE_FILE_1, SERVICE_NAME_3, "exec-3"))
- return FALSE;
-
- d.expecting_find = TRUE;
- d.service_name = SERVICE_NAME_3;
-
- if (!do_test ("Updated service file, part 1", oom_test, &d))
- return FALSE;
-
- d.expecting_find = FALSE;
- d.service_name = SERVICE_NAME_1;
-
- if (!do_test ("Updated service file, part 2", oom_test, &d))
- return FALSE;
-
- bus_activation_unref (activation);
- _dbus_list_clear (&directories);
-
- return TRUE;
-}
-
-dbus_bool_t
-bus_activation_service_reload_test (const DBusString *test_data_dir)
-{
- DBusString directory;
- const char *tmp;
-
- if (!_dbus_string_init (&directory))
- return FALSE;
-
- tmp = _dbus_get_tmpdir ();
-
- if (tmp == NULL)
- return FALSE;
-
- if (!_dbus_string_append (&directory, tmp))
- return FALSE;
-
- if (!_dbus_string_append (&directory, "/dbus-reload-test-") ||
- !_dbus_generate_random_ascii (&directory, 6))
- {
- return FALSE;
- }
-
- /* Do normal tests */
- if (!init_service_reload_test (&directory))
- _dbus_assert_not_reached ("could not initiate service reload test");
-
- if (!do_service_reload_test (&directory, FALSE))
- {
- /* Do nothing? */
- }
-
- /* Do OOM tests */
- if (!init_service_reload_test (&directory))
- _dbus_assert_not_reached ("could not initiate service reload test");
-
- if (!do_service_reload_test (&directory, TRUE))
- {
- /* Do nothing? */
- }
-
- /* Cleanup test directory */
- if (!cleanup_service_reload_test (&directory))
- return FALSE;
-
- _dbus_string_free (&directory);
-
- return TRUE;
-}
-
-#endif /* DBUS_ENABLE_EMBEDDED_TESTS */
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