| /* -*- 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 |
| { |
| DBusMessage *activation_message; |
| 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 void |
| handle_timeout_callback (DBusTimeout *timeout, |
| void *data) |
| { |
| BusPendingActivation *pending_activation = data; |
| |
| while (!dbus_timeout_handle (pending_activation->timeout)) |
| _dbus_wait_for_memory (); |
| } |
| |
| 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, |
| handle_timeout_callback, pending_activation); |
| 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); |
| |
| 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\" 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); |
| bus_activation_entry_unref (entry); |
| return FALSE; |
| } |
| } |
| |
| 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 FALSE; |
| } |
| |
| 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; |
| DBusList *link; |
| char *dir; |
| |
| _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); |
| |
| if (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 && 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 (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_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; |
| default: |
| dbus_set_error (error, DBUS_ERROR_SPAWN_CHILD_EXITED, |
| "Launch helper exited with unknown return code %i", exit_code); |
| break; |
| } |
| } |
| |
| static dbus_bool_t |
| babysitter_watch_callback (DBusWatch *watch, |
| unsigned int condition, |
| void *data) |
| { |
| BusPendingActivation *pending_activation = data; |
| dbus_bool_t retval; |
| DBusBabysitter *babysitter; |
| dbus_bool_t uses_servicehelper; |
| |
| babysitter = pending_activation->babysitter; |
| |
| _dbus_babysitter_ref (babysitter); |
| |
| retval = dbus_watch_handle (watch, condition); |
| |
| /* 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; |
| |
| /* FIXME this is broken in the same way that |
| * connection watches used to be; there should be |
| * a separate callback for status change, instead |
| * of doing "if we handled a watch status might |
| * have changed" |
| * |
| * Fixing this lets us move dbus_watch_handle |
| * calls into dbus-mainloop.c |
| */ |
| 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); |
| |
| return retval; |
| } |
| |
| 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, babysitter_watch_callback, pending_activation, |
| NULL); |
| } |
| |
| 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, babysitter_watch_callback, pending_activation); |
| } |
| |
| 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; |
| DBusHashIter iter; |
| 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; |
| 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, |
| handle_timeout_callback, |
| pending_activation, |
| NULL)) |
| { |
| _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, connection, 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, 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); |
| |
| if (!_dbus_babysitter_set_watch_functions (pending_activation->babysitter, |
| add_babysitter_watch, |
| remove_babysitter_watch, |
| NULL, |
| 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_BUILD_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; |
| |
| if (!_dbus_string_init (&directory)) |
| return FALSE; |
| |
| if (!_dbus_string_append (&directory, _dbus_get_tmpdir())) |
| 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_BUILD_TESTS */ |
