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03467c88 | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
5cb5a6ff | 2 | |
c2f1db8f | 3 | #pragma once |
5cb5a6ff | 4 | |
a7334b09 LP |
5 | /*** |
6 | This file is part of systemd. | |
7 | ||
8 | Copyright 2010 Lennart Poettering | |
9 | ||
10 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
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 | |
a7334b09 LP |
13 | (at your option) any later version. |
14 | ||
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 | |
5430f7f2 | 18 | Lesser General Public License for more details. |
a7334b09 | 19 | |
5430f7f2 | 20 | You should have received a copy of the GNU Lesser General Public License |
a7334b09 LP |
21 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
22 | ***/ | |
23 | ||
5cb5a6ff | 24 | typedef struct Service Service; |
a354329f | 25 | typedef struct ServiceFDStore ServiceFDStore; |
5cb5a6ff | 26 | |
71d35b6b TA |
27 | #include "exit-status.h" |
28 | #include "kill.h" | |
9cf3ab0e | 29 | #include "path.h" |
1e2e8133 | 30 | #include "ratelimit.h" |
5cb5a6ff | 31 | |
034c6ed7 | 32 | typedef enum ServiceRestart { |
525ee6f4 | 33 | SERVICE_RESTART_NO, |
034c6ed7 | 34 | SERVICE_RESTART_ON_SUCCESS, |
50caaedb | 35 | SERVICE_RESTART_ON_FAILURE, |
6cfe2fde | 36 | SERVICE_RESTART_ON_ABNORMAL, |
dc99a976 | 37 | SERVICE_RESTART_ON_WATCHDOG, |
50caaedb | 38 | SERVICE_RESTART_ON_ABORT, |
94f04347 LP |
39 | SERVICE_RESTART_ALWAYS, |
40 | _SERVICE_RESTART_MAX, | |
41 | _SERVICE_RESTART_INVALID = -1 | |
034c6ed7 LP |
42 | } ServiceRestart; |
43 | ||
44 | typedef enum ServiceType { | |
05e343b7 | 45 | SERVICE_SIMPLE, /* we fork and go on right-away (i.e. modern socket activated daemons) */ |
1f48cf56 | 46 | SERVICE_FORKING, /* forks by itself (i.e. traditional daemons) */ |
34e9ba66 | 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) */ |
05e343b7 | 48 | SERVICE_DBUS, /* we fork and wait until a specific D-Bus name appears on the bus */ |
8c47c732 | 49 | SERVICE_NOTIFY, /* we fork and wait until a daemon sends us a ready message with sd_notify() */ |
f2b68789 | 50 | SERVICE_IDLE, /* much like simple, but delay exec() until all jobs are dispatched. */ |
94f04347 LP |
51 | _SERVICE_TYPE_MAX, |
52 | _SERVICE_TYPE_INVALID = -1 | |
034c6ed7 | 53 | } ServiceType; |
5cb5a6ff LP |
54 | |
55 | typedef enum ServiceExecCommand { | |
56 | SERVICE_EXEC_START_PRE, | |
57 | SERVICE_EXEC_START, | |
58 | SERVICE_EXEC_START_POST, | |
5cb5a6ff | 59 | SERVICE_EXEC_RELOAD, |
5cb5a6ff LP |
60 | SERVICE_EXEC_STOP, |
61 | SERVICE_EXEC_STOP_POST, | |
e537352b LP |
62 | _SERVICE_EXEC_COMMAND_MAX, |
63 | _SERVICE_EXEC_COMMAND_INVALID = -1 | |
5cb5a6ff LP |
64 | } ServiceExecCommand; |
65 | ||
c952c6ec LP |
66 | typedef enum NotifyAccess { |
67 | NOTIFY_NONE, | |
68 | NOTIFY_ALL, | |
69 | NOTIFY_MAIN, | |
70 | _NOTIFY_ACCESS_MAX, | |
71 | _NOTIFY_ACCESS_INVALID = -1 | |
72 | } NotifyAccess; | |
73 | ||
308d72dc LP |
74 | typedef enum NotifyState { |
75 | NOTIFY_UNKNOWN, | |
76 | NOTIFY_READY, | |
77 | NOTIFY_RELOADING, | |
78 | NOTIFY_STOPPING, | |
79 | _NOTIFY_STATE_MAX, | |
80 | _NOTIFY_STATE_INVALID = -1 | |
81 | } NotifyState; | |
82 | ||
f42806df LP |
83 | typedef enum ServiceResult { |
84 | SERVICE_SUCCESS, | |
85 | SERVICE_FAILURE_RESOURCES, | |
86 | SERVICE_FAILURE_TIMEOUT, | |
87 | SERVICE_FAILURE_EXIT_CODE, | |
88 | SERVICE_FAILURE_SIGNAL, | |
89 | SERVICE_FAILURE_CORE_DUMP, | |
bb242b7b | 90 | SERVICE_FAILURE_WATCHDOG, |
8d1b002a | 91 | SERVICE_FAILURE_START_LIMIT, |
f42806df LP |
92 | _SERVICE_RESULT_MAX, |
93 | _SERVICE_RESULT_INVALID = -1 | |
94 | } ServiceResult; | |
95 | ||
a354329f LP |
96 | struct ServiceFDStore { |
97 | Service *service; | |
98 | ||
99 | int fd; | |
8dd4c05b | 100 | char *fdname; |
a354329f LP |
101 | sd_event_source *event_source; |
102 | ||
103 | LIST_FIELDS(ServiceFDStore, fd_store); | |
104 | }; | |
105 | ||
5cb5a6ff | 106 | struct Service { |
ac155bb8 | 107 | Unit meta; |
5cb5a6ff | 108 | |
034c6ed7 LP |
109 | ServiceType type; |
110 | ServiceRestart restart; | |
37520c1b LP |
111 | ExitStatusSet restart_prevent_status; |
112 | ExitStatusSet restart_force_status; | |
96342de6 | 113 | ExitStatusSet success_status; |
034c6ed7 LP |
114 | |
115 | /* If set we'll read the main daemon PID from this file */ | |
116 | char *pid_file; | |
117 | ||
118 | usec_t restart_usec; | |
d568a335 MS |
119 | usec_t timeout_start_usec; |
120 | usec_t timeout_stop_usec; | |
5cb5a6ff | 121 | |
a6927d7f | 122 | dual_timestamp watchdog_timestamp; |
bb242b7b | 123 | usec_t watchdog_usec; |
718db961 | 124 | sd_event_source *watchdog_event_source; |
a6927d7f | 125 | |
e537352b | 126 | ExecCommand* exec_command[_SERVICE_EXEC_COMMAND_MAX]; |
4819ff03 | 127 | |
5cb5a6ff | 128 | ExecContext exec_context; |
4819ff03 | 129 | KillContext kill_context; |
4ad49000 | 130 | CGroupContext cgroup_context; |
5cb5a6ff | 131 | |
a16e1123 | 132 | ServiceState state, deserialized_state; |
034c6ed7 | 133 | |
867b3b7d | 134 | /* The exit status of the real main process */ |
034c6ed7 LP |
135 | ExecStatus main_exec_status; |
136 | ||
867b3b7d | 137 | /* The currently executed control process */ |
034c6ed7 | 138 | ExecCommand *control_command; |
867b3b7d LP |
139 | |
140 | /* The currently executed main process, which may be NULL if | |
141 | * the main process got started via forking mode and not by | |
142 | * us */ | |
143 | ExecCommand *main_command; | |
144 | ||
145 | /* The ID of the control command currently being executed */ | |
a16e1123 | 146 | ServiceExecCommand control_command_id; |
867b3b7d | 147 | |
613b411c LP |
148 | /* Runtime data of the execution context */ |
149 | ExecRuntime *exec_runtime; | |
150 | ||
034c6ed7 | 151 | pid_t main_pid, control_pid; |
07459bb6 | 152 | int socket_fd; |
16115b0a | 153 | bool socket_fd_selinux_context_net; |
8fe914ec | 154 | |
e44da745 DM |
155 | int bus_endpoint_fd; |
156 | ||
8fe914ec LP |
157 | bool permissions_start_only; |
158 | bool root_directory_start_only; | |
02ee865a | 159 | bool remain_after_exit; |
3185a36b | 160 | bool guess_main_pid; |
8fe914ec | 161 | |
05e343b7 | 162 | /* If we shut down, remember why */ |
f42806df LP |
163 | ServiceResult result; |
164 | ServiceResult reload_result; | |
e2f3b44c | 165 | |
5de6b302 | 166 | bool main_pid_known:1; |
6dfa5494 | 167 | bool main_pid_alien:1; |
05e343b7 | 168 | bool bus_name_good:1; |
47342320 | 169 | bool forbid_restart:1; |
d568a335 | 170 | bool start_timeout_defined:1; |
2c4104f0 | 171 | |
5ad096b3 LP |
172 | bool reset_cpu_usage:1; |
173 | ||
05e343b7 | 174 | char *bus_name; |
d8ccf5fd | 175 | char *bus_name_owner; /* unique name of the current owner */ |
05e343b7 | 176 | |
8c47c732 | 177 | char *status_text; |
4774e357 | 178 | int status_errno; |
8c47c732 | 179 | |
4b939747 | 180 | RateLimit start_limit; |
bf500566 | 181 | FailureAction start_limit_action; |
2928b0a8 | 182 | FailureAction failure_action; |
efe6e7d3 | 183 | char *reboot_arg; |
4b939747 | 184 | |
57020a3a | 185 | UnitRef accept_socket; |
4f2d528d | 186 | |
718db961 | 187 | sd_event_source *timer_event_source; |
3a111838 | 188 | PathSpec *pid_file_pathspec; |
8fe914ec LP |
189 | |
190 | NotifyAccess notify_access; | |
308d72dc | 191 | NotifyState notify_state; |
a354329f LP |
192 | |
193 | ServiceFDStore *fd_store; | |
194 | unsigned n_fd_store; | |
195 | unsigned n_fd_store_max; | |
6b7e5923 PS |
196 | |
197 | char *usb_function_descriptors; | |
198 | char *usb_function_strings; | |
a34ceba6 LP |
199 | |
200 | int stdin_fd; | |
201 | int stdout_fd; | |
202 | int stderr_fd; | |
5cb5a6ff LP |
203 | }; |
204 | ||
47be870b | 205 | extern const UnitVTable service_vtable; |
5cb5a6ff | 206 | |
16115b0a | 207 | int service_set_socket_fd(Service *s, int fd, struct Socket *socket, bool selinux_context_net); |
4f2d528d | 208 | |
44a6b1b6 ZJS |
209 | const char* service_restart_to_string(ServiceRestart i) _const_; |
210 | ServiceRestart service_restart_from_string(const char *s) _pure_; | |
94f04347 | 211 | |
44a6b1b6 ZJS |
212 | const char* service_type_to_string(ServiceType i) _const_; |
213 | ServiceType service_type_from_string(const char *s) _pure_; | |
94f04347 | 214 | |
44a6b1b6 ZJS |
215 | const char* service_exec_command_to_string(ServiceExecCommand i) _const_; |
216 | ServiceExecCommand service_exec_command_from_string(const char *s) _pure_; | |
94f04347 | 217 | |
44a6b1b6 ZJS |
218 | const char* notify_access_to_string(NotifyAccess i) _const_; |
219 | NotifyAccess notify_access_from_string(const char *s) _pure_; | |
c952c6ec | 220 | |
308d72dc LP |
221 | const char* notify_state_to_string(NotifyState i) _const_; |
222 | NotifyState notify_state_from_string(const char *s) _pure_; | |
223 | ||
44a6b1b6 ZJS |
224 | const char* service_result_to_string(ServiceResult i) _const_; |
225 | ServiceResult service_result_from_string(const char *s) _pure_; |