1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
6 This file is part of systemd.
8 Copyright 2010 Lennart Poettering
10 systemd is free software; you can redistribute it and/or modify it
11 under the terms of the GNU Lesser General Public License as published by
12 the Free Software Foundation; either version 2.1 of the License, or
13 (at your option) any later version.
15 systemd is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 Lesser General Public License for more details.
20 You should have received a copy of the GNU Lesser General Public License
21 along with systemd; If not, see <http://www.gnu.org/licenses/>.
24 typedef struct Service Service
;
25 typedef struct ServiceFDStore ServiceFDStore
;
27 #include "exit-status.h"
30 #include "ratelimit.h"
32 typedef enum ServiceRestart
{
34 SERVICE_RESTART_ON_SUCCESS
,
35 SERVICE_RESTART_ON_FAILURE
,
36 SERVICE_RESTART_ON_ABNORMAL
,
37 SERVICE_RESTART_ON_WATCHDOG
,
38 SERVICE_RESTART_ON_ABORT
,
39 SERVICE_RESTART_ALWAYS
,
41 _SERVICE_RESTART_INVALID
= -1
44 typedef enum ServiceType
{
45 SERVICE_SIMPLE
, /* we fork and go on right-away (i.e. modern socket activated daemons) */
46 SERVICE_FORKING
, /* forks by itself (i.e. traditional daemons) */
47 SERVICE_ONESHOT
, /* we fork and wait until the program finishes (i.e. programs like fsck which run and need to finish before we continue) */
48 SERVICE_DBUS
, /* we fork and wait until a specific D-Bus name appears on the bus */
49 SERVICE_NOTIFY
, /* we fork and wait until a daemon sends us a ready message with sd_notify() */
50 SERVICE_IDLE
, /* much like simple, but delay exec() until all jobs are dispatched. */
52 _SERVICE_TYPE_INVALID
= -1
55 typedef enum ServiceExecCommand
{
56 SERVICE_EXEC_START_PRE
,
58 SERVICE_EXEC_START_POST
,
61 SERVICE_EXEC_STOP_POST
,
62 _SERVICE_EXEC_COMMAND_MAX
,
63 _SERVICE_EXEC_COMMAND_INVALID
= -1
66 typedef enum NotifyAccess
{
71 _NOTIFY_ACCESS_INVALID
= -1
74 typedef enum NotifyState
{
80 _NOTIFY_STATE_INVALID
= -1
83 typedef enum ServiceResult
{
85 SERVICE_FAILURE_RESOURCES
,
86 SERVICE_FAILURE_TIMEOUT
,
87 SERVICE_FAILURE_EXIT_CODE
,
88 SERVICE_FAILURE_SIGNAL
,
89 SERVICE_FAILURE_CORE_DUMP
,
90 SERVICE_FAILURE_WATCHDOG
,
91 SERVICE_FAILURE_START_LIMIT
,
93 _SERVICE_RESULT_INVALID
= -1
96 struct ServiceFDStore
{
101 sd_event_source
*event_source
;
103 LIST_FIELDS(ServiceFDStore
, fd_store
);
110 ServiceRestart restart
;
111 ExitStatusSet restart_prevent_status
;
112 ExitStatusSet restart_force_status
;
113 ExitStatusSet success_status
;
115 /* If set we'll read the main daemon PID from this file */
119 usec_t timeout_start_usec
;
120 usec_t timeout_stop_usec
;
122 dual_timestamp watchdog_timestamp
;
123 usec_t watchdog_usec
;
124 sd_event_source
*watchdog_event_source
;
126 ExecCommand
* exec_command
[_SERVICE_EXEC_COMMAND_MAX
];
128 ExecContext exec_context
;
129 KillContext kill_context
;
130 CGroupContext cgroup_context
;
132 ServiceState state
, deserialized_state
;
134 /* The exit status of the real main process */
135 ExecStatus main_exec_status
;
137 /* The currently executed control process */
138 ExecCommand
*control_command
;
140 /* The currently executed main process, which may be NULL if
141 * the main process got started via forking mode and not by
143 ExecCommand
*main_command
;
145 /* The ID of the control command currently being executed */
146 ServiceExecCommand control_command_id
;
148 /* Runtime data of the execution context */
149 ExecRuntime
*exec_runtime
;
151 pid_t main_pid
, control_pid
;
153 bool socket_fd_selinux_context_net
;
157 bool permissions_start_only
;
158 bool root_directory_start_only
;
159 bool remain_after_exit
;
162 /* If we shut down, remember why */
163 ServiceResult result
;
164 ServiceResult reload_result
;
166 bool main_pid_known
:1;
167 bool main_pid_alien
:1;
168 bool bus_name_good
:1;
169 bool forbid_restart
:1;
170 bool start_timeout_defined
:1;
172 bool reset_cpu_usage
:1;
175 char *bus_name_owner
; /* unique name of the current owner */
180 RateLimit start_limit
;
181 FailureAction start_limit_action
;
182 FailureAction failure_action
;
185 UnitRef accept_socket
;
187 sd_event_source
*timer_event_source
;
188 PathSpec
*pid_file_pathspec
;
190 NotifyAccess notify_access
;
191 NotifyState notify_state
;
193 ServiceFDStore
*fd_store
;
195 unsigned n_fd_store_max
;
197 char *usb_function_descriptors
;
198 char *usb_function_strings
;
205 extern const UnitVTable service_vtable
;
207 int service_set_socket_fd(Service
*s
, int fd
, struct Socket
*socket
, bool selinux_context_net
);
209 const char* service_restart_to_string(ServiceRestart i
) _const_
;
210 ServiceRestart
service_restart_from_string(const char *s
) _pure_
;
212 const char* service_type_to_string(ServiceType i
) _const_
;
213 ServiceType
service_type_from_string(const char *s
) _pure_
;
215 const char* service_exec_command_to_string(ServiceExecCommand i
) _const_
;
216 ServiceExecCommand
service_exec_command_from_string(const char *s
) _pure_
;
218 const char* notify_access_to_string(NotifyAccess i
) _const_
;
219 NotifyAccess
notify_access_from_string(const char *s
) _pure_
;
221 const char* notify_state_to_string(NotifyState i
) _const_
;
222 NotifyState
notify_state_from_string(const char *s
) _pure_
;
224 const char* service_result_to_string(ServiceResult i
) _const_
;
225 ServiceResult
service_result_from_string(const char *s
) _pure_
;