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60918275 LP |
1 | /*-*- Mode: C; c-basic-offset: 8 -*-*/ |
2 | ||
3 | #ifndef foomanagerhfoo | |
4 | #define foomanagerhfoo | |
5 | ||
a7334b09 LP |
6 | /*** |
7 | This file is part of systemd. | |
8 | ||
9 | Copyright 2010 Lennart Poettering | |
10 | ||
11 | systemd is free software; you can redistribute it and/or modify it | |
12 | under the terms of the GNU General Public License as published by | |
13 | the Free Software Foundation; either version 2 of the License, or | |
14 | (at your option) any later version. | |
15 | ||
16 | systemd is distributed in the hope that it will be useful, but | |
17 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
19 | General Public License for more details. | |
20 | ||
21 | You should have received a copy of the GNU General Public License | |
22 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
23 | ***/ | |
24 | ||
60918275 LP |
25 | #include <stdbool.h> |
26 | #include <inttypes.h> | |
a66d02c3 | 27 | #include <stdio.h> |
ea430986 LP |
28 | #include <dbus/dbus.h> |
29 | ||
a16e1123 LP |
30 | #include "fdset.h" |
31 | ||
60918275 | 32 | typedef struct Manager Manager; |
acbb0225 LP |
33 | typedef enum WatchType WatchType; |
34 | typedef struct Watch Watch; | |
35 | ||
a16e1123 LP |
36 | typedef enum ManagerExitCode { |
37 | MANAGER_RUNNING, | |
38 | MANAGER_EXIT, | |
39 | MANAGER_RELOAD, | |
40 | MANAGER_REEXECUTE, | |
41 | _MANAGER_EXIT_CODE_MAX, | |
42 | _MANAGER_EXIT_CODE_INVALID = -1 | |
43 | } ManagerExitCode; | |
44 | ||
dfcd764e LP |
45 | typedef enum ManagerRunningAs { |
46 | MANAGER_INIT, /* root and pid=1 */ | |
47 | MANAGER_SYSTEM, /* root and pid!=1 */ | |
80876c20 | 48 | MANAGER_SESSION, /* non-root, for a session */ |
dfcd764e LP |
49 | _MANAGER_RUNNING_AS_MAX, |
50 | _MANAGER_RUNNING_AS_INVALID = -1 | |
51 | } ManagerRunningAs; | |
52 | ||
acbb0225 LP |
53 | enum WatchType { |
54 | WATCH_INVALID, | |
ef734fd6 | 55 | WATCH_SIGNAL, |
acbb0225 | 56 | WATCH_FD, |
ef734fd6 | 57 | WATCH_TIMER, |
f94ea366 | 58 | WATCH_MOUNT, |
ea430986 LP |
59 | WATCH_UDEV, |
60 | WATCH_DBUS_WATCH, | |
61 | WATCH_DBUS_TIMEOUT | |
acbb0225 LP |
62 | }; |
63 | ||
64 | struct Watch { | |
65 | int fd; | |
66 | WatchType type; | |
ea430986 LP |
67 | bool fd_is_dupped; |
68 | union { | |
69 | union Unit *unit; | |
70 | DBusWatch *bus_watch; | |
71 | DBusTimeout *bus_timeout; | |
4f2d528d | 72 | bool socket_accept; |
ea430986 | 73 | } data; |
acbb0225 | 74 | }; |
60918275 | 75 | |
87f0e418 | 76 | #include "unit.h" |
60918275 LP |
77 | #include "job.h" |
78 | #include "hashmap.h" | |
79 | #include "list.h" | |
80 | #include "set.h" | |
ea430986 | 81 | #include "dbus.h" |
60918275 | 82 | |
f50e0a01 | 83 | #define SPECIAL_DEFAULT_TARGET "default.target" |
28247076 | 84 | |
f50e0a01 | 85 | #define SPECIAL_LOGGER_SOCKET "systemd-logger.socket" |
28247076 | 86 | |
f50e0a01 | 87 | #define SPECIAL_KBREQUEST_TARGET "kbrequest.target" |
28247076 | 88 | #define SPECIAL_SIGPWR_TARGET "sigpwr.target" |
f50e0a01 | 89 | #define SPECIAL_CTRL_ALT_DEL_TARGET "ctrl-alt-del.target" |
28247076 | 90 | |
2c4104f0 | 91 | #define SPECIAL_LOCAL_FS_TARGET "local-fs.target" |
28247076 | 92 | #define SPECIAL_REMOTE_FS_TARGET "remote-fs.target" |
2c4104f0 LP |
93 | #define SPECIAL_NETWORK_TARGET "network.target" |
94 | #define SPECIAL_NSS_LOOKUP_TARGET "nss-lookup.target" /* LSB's $named */ | |
95 | #define SPECIAL_RPCBIND_TARGET "rpcbind.target" /* LSB's $portmap */ | |
2c4104f0 LP |
96 | #define SPECIAL_SYSLOG_TARGET "syslog.target" /* Should pull in syslog.socket or syslog.service */ |
97 | #define SPECIAL_RTC_SET_TARGET "rtc-set.target" /* LSB's $time */ | |
28247076 | 98 | |
adcbe07c | 99 | #define SPECIAL_BASIC_TARGET "basic.target" |
37d88da7 | 100 | #define SPECIAL_RESCUE_TARGET "rescue.target" |
2c4104f0 | 101 | |
2c696a96 LP |
102 | #ifndef SPECIAL_DBUS_SERVICE |
103 | #define SPECIAL_DBUS_SERVICE "dbus.service" | |
104 | #endif | |
105 | ||
106 | #ifndef SPECIAL_SYSLOG_SERVICE | |
107 | #define SPECIAL_SYSLOG_SERVICE "syslog.service" | |
108 | #endif | |
109 | ||
2c4104f0 LP |
110 | /* For SysV compatibility. Usually an alias for a saner target. On |
111 | * SysV-free systems this doesn't exist. */ | |
112 | #define SPECIAL_RUNLEVEL0_TARGET "runlevel0.target" | |
113 | #define SPECIAL_RUNLEVEL1_TARGET "runlevel1.target" | |
114 | #define SPECIAL_RUNLEVEL2_TARGET "runlevel2.target" | |
115 | #define SPECIAL_RUNLEVEL3_TARGET "runlevel3.target" | |
116 | #define SPECIAL_RUNLEVEL4_TARGET "runlevel4.target" | |
117 | #define SPECIAL_RUNLEVEL5_TARGET "runlevel5.target" | |
118 | #define SPECIAL_RUNLEVEL6_TARGET "runlevel6.target" | |
ce578209 | 119 | |
60918275 LP |
120 | struct Manager { |
121 | uint32_t current_job_id; | |
122 | ||
87f0e418 | 123 | /* Note that the set of units we know of is allowed to be |
87d1515d LP |
124 | * incosistent. However the subset of it that is loaded may |
125 | * not, and the list of jobs may neither. */ | |
126 | ||
87f0e418 LP |
127 | /* Active jobs and units */ |
128 | Hashmap *units; /* name string => Unit object n:1 */ | |
60918275 LP |
129 | Hashmap *jobs; /* job id => Job object 1:1 */ |
130 | ||
ef734fd6 LP |
131 | /* To make it easy to iterate through the units of a specific |
132 | * type we maintain a per type linked list */ | |
133 | LIST_HEAD(Meta, units_per_type[_UNIT_TYPE_MAX]); | |
134 | ||
87f0e418 | 135 | /* Units that need to be loaded */ |
60918275 LP |
136 | LIST_HEAD(Meta, load_queue); /* this is actually more a stack than a queue, but uh. */ |
137 | ||
034c6ed7 LP |
138 | /* Jobs that need to be run */ |
139 | LIST_HEAD(Job, run_queue); /* more a stack than a queue, too */ | |
140 | ||
c1e1601e LP |
141 | /* Units and jobs that have not yet been announced via |
142 | * D-Bus. When something about a job changes it is added here | |
143 | * if it is not in there yet. This allows easy coalescing of | |
144 | * D-Bus change signals. */ | |
145 | LIST_HEAD(Meta, dbus_unit_queue); | |
146 | LIST_HEAD(Job, dbus_job_queue); | |
147 | ||
23a177ef LP |
148 | LIST_HEAD(Meta, cleanup_queue); |
149 | ||
e5b5ae50 | 150 | /* Jobs to be added */ |
87f0e418 | 151 | Hashmap *transaction_jobs; /* Unit object => Job object list 1:1 */ |
e5b5ae50 | 152 | JobDependency *transaction_anchor; |
223dabab LP |
153 | |
154 | bool dispatching_load_queue:1; | |
034c6ed7 | 155 | bool dispatching_run_queue:1; |
c1e1601e | 156 | bool dispatching_dbus_queue:1; |
5cb5a6ff | 157 | |
f278026d | 158 | bool request_api_bus_dispatch:1; |
8e274523 | 159 | bool request_system_bus_dispatch:1; |
ea430986 | 160 | |
e537352b LP |
161 | bool utmp_reboot_written:1; |
162 | ||
80876c20 LP |
163 | bool confirm_spawn:1; |
164 | ||
51f7e596 LP |
165 | ManagerExitCode exit_code:4; |
166 | ManagerRunningAs running_as; | |
a16e1123 | 167 | |
87f0e418 | 168 | Hashmap *watch_pids; /* pid => Unit object n:1 */ |
9152c765 LP |
169 | |
170 | int epoll_fd; | |
acbb0225 LP |
171 | |
172 | Watch signal_watch; | |
ce578209 | 173 | |
036643a2 LP |
174 | char **unit_path; |
175 | char **sysvinit_path; | |
0571e011 | 176 | char **sysvrcnd_path; |
036643a2 | 177 | |
8d567588 LP |
178 | usec_t boot_timestamp; |
179 | ||
ef734fd6 | 180 | /* Data specific to the device subsystem */ |
25ac040b | 181 | struct udev* udev; |
f94ea366 LP |
182 | struct udev_monitor* udev_monitor; |
183 | Watch udev_watch; | |
ef734fd6 LP |
184 | |
185 | /* Data specific to the mount subsystem */ | |
186 | FILE *proc_self_mountinfo; | |
187 | Watch mount_watch; | |
ea430986 LP |
188 | |
189 | /* Data specific to the D-Bus subsystem */ | |
f278026d | 190 | DBusConnection *api_bus, *system_bus; |
c1e1601e | 191 | Set *subscribed; |
a16e1123 LP |
192 | DBusMessage *queued_message; /* This is used during reloading: |
193 | * before the reload we queue the | |
194 | * reply message here, and | |
195 | * afterwards we send it */ | |
8e274523 | 196 | |
05e343b7 LP |
197 | Hashmap *watch_bus; /* D-Bus names => Unit object n:1 */ |
198 | int32_t name_data_slot; | |
199 | ||
8e274523 LP |
200 | /* Data specific to the cgroup subsystem */ |
201 | Hashmap *cgroup_bondings; /* path string => CGroupBonding object 1:n */ | |
202 | char *cgroup_controller; | |
203 | char *cgroup_hierarchy; | |
e537352b | 204 | |
8d567588 LP |
205 | /* Data specific to the Automount subsystem */ |
206 | int dev_autofs_fd; | |
41447faf LP |
207 | |
208 | /* Data specific to the Snapshot subsystem */ | |
209 | unsigned n_snapshots; | |
60918275 LP |
210 | }; |
211 | ||
80876c20 | 212 | int manager_new(ManagerRunningAs running_as, bool confirm_spawn, Manager **m); |
60918275 LP |
213 | void manager_free(Manager *m); |
214 | ||
a16e1123 | 215 | int manager_enumerate(Manager *m); |
f50e0a01 | 216 | int manager_coldplug(Manager *m); |
a16e1123 | 217 | int manager_startup(Manager *m, FILE *serialization, FDSet *fds); |
f50e0a01 | 218 | |
60918275 | 219 | Job *manager_get_job(Manager *m, uint32_t id); |
87f0e418 | 220 | Unit *manager_get_unit(Manager *m, const char *name); |
60918275 | 221 | |
ea430986 | 222 | int manager_get_unit_from_dbus_path(Manager *m, const char *s, Unit **_u); |
86fbf370 | 223 | int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j); |
ea430986 | 224 | |
9e2f7c11 | 225 | int manager_load_unit(Manager *m, const char *name, const char *path, Unit **_ret); |
28247076 | 226 | |
87f0e418 | 227 | int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool force, Job **_ret); |
28247076 | 228 | int manager_add_job_by_name(Manager *m, JobType type, const char *name, JobMode mode, bool force, Job **_ret); |
60918275 | 229 | |
87f0e418 | 230 | void manager_dump_units(Manager *s, FILE *f, const char *prefix); |
cea8e32e | 231 | void manager_dump_jobs(Manager *s, FILE *f, const char *prefix); |
a66d02c3 | 232 | |
23a177ef | 233 | void manager_transaction_unlink_job(Manager *m, Job *j, bool delete_dependencies); |
e5b5ae50 | 234 | |
7fad411c LP |
235 | void manager_clear_jobs(Manager *m); |
236 | ||
c1e1601e LP |
237 | unsigned manager_dispatch_load_queue(Manager *m); |
238 | unsigned manager_dispatch_run_queue(Manager *m); | |
239 | unsigned manager_dispatch_dbus_queue(Manager *m); | |
f50e0a01 | 240 | |
9152c765 | 241 | int manager_loop(Manager *m); |
83c60c9f | 242 | |
e537352b | 243 | void manager_write_utmp_reboot(Manager *m); |
e537352b LP |
244 | void manager_write_utmp_runlevel(Manager *m, Unit *t); |
245 | ||
05e343b7 LP |
246 | void manager_dispatch_bus_name_owner_changed(Manager *m, const char *name, const char* old_owner, const char *new_owner); |
247 | void manager_dispatch_bus_query_pid_done(Manager *m, const char *name, pid_t pid); | |
248 | ||
a16e1123 LP |
249 | int manager_open_serialization(FILE **_f); |
250 | ||
251 | int manager_serialize(Manager *m, FILE *f, FDSet *fds); | |
252 | int manager_deserialize(Manager *m, FILE *f, FDSet *fds); | |
253 | ||
254 | int manager_reload(Manager *m); | |
255 | ||
05e343b7 LP |
256 | const char *manager_running_as_to_string(ManagerRunningAs i); |
257 | ManagerRunningAs manager_running_as_from_string(const char *s); | |
258 | ||
60918275 | 259 | #endif |