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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
c2f1db8f | 2 | #pragma once |
87f0e418 | 3 | |
9e615fa3 | 4 | #include <errno.h> |
87f0e418 LP |
5 | #include <stdbool.h> |
6 | #include <stdlib.h> | |
84ebe6f0 | 7 | #include <sys/socket.h> |
bbc9006e | 8 | #include <unistd.h> |
87f0e418 | 9 | |
2d3b784d ZJS |
10 | #include "sd-id128.h" |
11 | ||
9e615fa3 LB |
12 | /* Circular dependency with manager.h, needs to be defined before local includes */ |
13 | typedef enum UnitMountDependencyType { | |
14 | UNIT_MOUNT_WANTS, | |
15 | UNIT_MOUNT_REQUIRES, | |
16 | _UNIT_MOUNT_DEPENDENCY_TYPE_MAX, | |
17 | _UNIT_MOUNT_DEPENDENCY_TYPE_INVALID = -EINVAL, | |
18 | } UnitMountDependencyType; | |
19 | ||
6a48d82f | 20 | #include "bpf-program.h" |
7901288a | 21 | #include "cgroup.h" |
134e56dc | 22 | #include "condition.h" |
87a47f99 | 23 | #include "emergency-action.h" |
e77e07f6 | 24 | #include "install.h" |
71d35b6b | 25 | #include "list.h" |
7901288a | 26 | #include "pidref.h" |
fab34748 | 27 | #include "set.h" |
7901288a | 28 | #include "show-status.h" |
5cfa33e0 | 29 | #include "unit-file.h" |
87f0e418 | 30 | |
57b7a260 FS |
31 | typedef struct UnitRef UnitRef; |
32 | ||
db2cb23b UTL |
33 | typedef enum KillOperation { |
34 | KILL_TERMINATE, | |
1d98fef1 | 35 | KILL_TERMINATE_AND_LOG, |
a232ebcc | 36 | KILL_RESTART, |
db2cb23b | 37 | KILL_KILL, |
c87700a1 | 38 | KILL_WATCHDOG, |
4940c0b0 | 39 | _KILL_OPERATION_MAX, |
2d93c20e | 40 | _KILL_OPERATION_INVALID = -EINVAL, |
db2cb23b UTL |
41 | } KillOperation; |
42 | ||
5afe510c LP |
43 | typedef enum CollectMode { |
44 | COLLECT_INACTIVE, | |
45 | COLLECT_INACTIVE_OR_FAILED, | |
46 | _COLLECT_MODE_MAX, | |
2d93c20e | 47 | _COLLECT_MODE_INVALID = -EINVAL, |
5afe510c LP |
48 | } CollectMode; |
49 | ||
87f0e418 | 50 | static inline bool UNIT_IS_ACTIVE_OR_RELOADING(UnitActiveState t) { |
3742095b | 51 | return IN_SET(t, UNIT_ACTIVE, UNIT_RELOADING); |
87f0e418 LP |
52 | } |
53 | ||
54 | static inline bool UNIT_IS_ACTIVE_OR_ACTIVATING(UnitActiveState t) { | |
3742095b | 55 | return IN_SET(t, UNIT_ACTIVE, UNIT_ACTIVATING, UNIT_RELOADING); |
87f0e418 LP |
56 | } |
57 | ||
58 | static inline bool UNIT_IS_INACTIVE_OR_DEACTIVATING(UnitActiveState t) { | |
3742095b | 59 | return IN_SET(t, UNIT_INACTIVE, UNIT_FAILED, UNIT_DEACTIVATING); |
6124958c LP |
60 | } |
61 | ||
fdf20a31 | 62 | static inline bool UNIT_IS_INACTIVE_OR_FAILED(UnitActiveState t) { |
3742095b | 63 | return IN_SET(t, UNIT_INACTIVE, UNIT_FAILED); |
87f0e418 LP |
64 | } |
65 | ||
0377cd29 LP |
66 | static inline bool UNIT_IS_LOAD_COMPLETE(UnitLoadState t) { |
67 | return t >= 0 && t < _UNIT_LOAD_STATE_MAX && t != UNIT_STUB && t != UNIT_MERGED; | |
68 | } | |
69 | ||
eef85c4a LP |
70 | /* Stores the 'reason' a dependency was created as a bit mask, i.e. due to which configuration source it came to be. We |
71 | * use this so that we can selectively flush out parts of dependencies again. Note that the same dependency might be | |
72 | * created as a result of multiple "reasons", hence the bitmask. */ | |
73 | typedef enum UnitDependencyMask { | |
5238e957 | 74 | /* Configured directly by the unit file, .wants/.requires symlink or drop-in, or as an immediate result of a |
eef85c4a LP |
75 | * non-dependency option configured that way. */ |
76 | UNIT_DEPENDENCY_FILE = 1 << 0, | |
77 | ||
78 | /* As unconditional implicit dependency (not affected by unit configuration — except by the unit name and | |
79 | * type) */ | |
80 | UNIT_DEPENDENCY_IMPLICIT = 1 << 1, | |
81 | ||
82 | /* A dependency effected by DefaultDependencies=yes. Note that dependencies marked this way are conceptually | |
83 | * just a subset of UNIT_DEPENDENCY_FILE, as DefaultDependencies= is itself a unit file setting that can only | |
84 | * be set in unit files. We make this two separate bits only to help debugging how dependencies came to be. */ | |
85 | UNIT_DEPENDENCY_DEFAULT = 1 << 2, | |
86 | ||
87 | /* A dependency created from udev rules */ | |
88 | UNIT_DEPENDENCY_UDEV = 1 << 3, | |
89 | ||
90 | /* A dependency created because of some unit's RequiresMountsFor= setting */ | |
91 | UNIT_DEPENDENCY_PATH = 1 << 4, | |
92 | ||
87c734ee FB |
93 | /* A dependency initially configured from the mount unit file however the dependency will be updated |
94 | * from /proc/self/mountinfo as soon as the kernel will make the entry for that mount available in | |
95 | * the /proc file */ | |
96 | UNIT_DEPENDENCY_MOUNT_FILE = 1 << 5, | |
97 | ||
98 | /* A dependency created or updated because of data read from /proc/self/mountinfo */ | |
99 | UNIT_DEPENDENCY_MOUNTINFO = 1 << 6, | |
49267b1b | 100 | |
eef85c4a | 101 | /* A dependency created because of data read from /proc/swaps and no other configuration source */ |
87c734ee | 102 | UNIT_DEPENDENCY_PROC_SWAP = 1 << 7, |
eef85c4a | 103 | |
899acf5c | 104 | /* A dependency for units in slices assigned by directly setting Slice= */ |
87c734ee | 105 | UNIT_DEPENDENCY_SLICE_PROPERTY = 1 << 8, |
899acf5c | 106 | |
87c734ee | 107 | _UNIT_DEPENDENCY_MASK_FULL = (1 << 9) - 1, |
eef85c4a LP |
108 | } UnitDependencyMask; |
109 | ||
110 | /* The Unit's dependencies[] hashmaps use this structure as value. It has the same size as a void pointer, and thus can | |
111 | * be stored directly as hashmap value, without any indirection. Note that this stores two masks, as both the origin | |
112 | * and the destination of a dependency might have created it. */ | |
113 | typedef union UnitDependencyInfo { | |
114 | void *data; | |
115 | struct { | |
116 | UnitDependencyMask origin_mask:16; | |
117 | UnitDependencyMask destination_mask:16; | |
118 | } _packed_; | |
119 | } UnitDependencyInfo; | |
120 | ||
48b92b37 LB |
121 | /* Store information about why a unit was activated. |
122 | * We start with trigger units (.path/.timer), eventually it will be expanded to include more metadata. */ | |
123 | typedef struct ActivationDetails { | |
124 | unsigned n_ref; | |
125 | UnitType trigger_unit_type; | |
126 | char *trigger_unit_name; | |
127 | } ActivationDetails; | |
128 | ||
129 | /* For casting an activation event into the various unit-specific types */ | |
130 | #define DEFINE_ACTIVATION_DETAILS_CAST(UPPERCASE, MixedCase, UNIT_TYPE) \ | |
131 | static inline MixedCase* UPPERCASE(ActivationDetails *a) { \ | |
132 | if (_unlikely_(!a || a->trigger_unit_type != UNIT_##UNIT_TYPE)) \ | |
133 | return NULL; \ | |
134 | \ | |
135 | return (MixedCase*) a; \ | |
136 | } | |
137 | ||
138 | /* For casting the various unit types into a unit */ | |
139 | #define ACTIVATION_DETAILS(u) \ | |
140 | ({ \ | |
141 | typeof(u) _u_ = (u); \ | |
142 | ActivationDetails *_w_ = _u_ ? &(_u_)->meta : NULL; \ | |
143 | _w_; \ | |
144 | }) | |
145 | ||
146 | ActivationDetails *activation_details_new(Unit *trigger_unit); | |
147 | ActivationDetails *activation_details_ref(ActivationDetails *p); | |
148 | ActivationDetails *activation_details_unref(ActivationDetails *p); | |
149 | void activation_details_serialize(ActivationDetails *p, FILE *f); | |
150 | int activation_details_deserialize(const char *key, const char *value, ActivationDetails **info); | |
151 | int activation_details_append_env(ActivationDetails *info, char ***strv); | |
152 | int activation_details_append_pair(ActivationDetails *info, char ***strv); | |
153 | DEFINE_TRIVIAL_CLEANUP_FUNC(ActivationDetails*, activation_details_unref); | |
154 | ||
155 | typedef struct ActivationDetailsVTable { | |
156 | /* How much memory does an object of this activation type need */ | |
157 | size_t object_size; | |
158 | ||
159 | /* This should reset all type-specific variables. This should not allocate memory, and is called | |
160 | * with zero-initialized data. It should hence only initialize variables that need to be set != 0. */ | |
161 | void (*init)(ActivationDetails *info, Unit *trigger_unit); | |
162 | ||
163 | /* This should free all type-specific variables. It should be idempotent. */ | |
164 | void (*done)(ActivationDetails *info); | |
165 | ||
166 | /* This should serialize all type-specific variables. */ | |
167 | void (*serialize)(ActivationDetails *info, FILE *f); | |
168 | ||
169 | /* This should deserialize all type-specific variables, one at a time. */ | |
170 | int (*deserialize)(const char *key, const char *value, ActivationDetails **info); | |
171 | ||
172 | /* This should format the type-specific variables for the env block of the spawned service, | |
173 | * and return the number of added items. */ | |
174 | int (*append_env)(ActivationDetails *info, char ***strv); | |
175 | ||
176 | /* This should append type-specific variables as key/value pairs for the D-Bus property of the job, | |
177 | * and return the number of added pairs. */ | |
178 | int (*append_pair)(ActivationDetails *info, char ***strv); | |
179 | } ActivationDetailsVTable; | |
180 | ||
181 | extern const ActivationDetailsVTable * const activation_details_vtable[_UNIT_TYPE_MAX]; | |
182 | ||
183 | static inline const ActivationDetailsVTable* ACTIVATION_DETAILS_VTABLE(const ActivationDetails *a) { | |
184 | assert(a); | |
185 | assert(a->trigger_unit_type < _UNIT_TYPE_MAX); | |
186 | ||
187 | return activation_details_vtable[a->trigger_unit_type]; | |
188 | } | |
189 | ||
15ed3c3a LP |
190 | /* Newer LLVM versions don't like implicit casts from large pointer types to smaller enums, hence let's add |
191 | * explicit type-safe helpers for that. */ | |
192 | static inline UnitDependency UNIT_DEPENDENCY_FROM_PTR(const void *p) { | |
193 | return PTR_TO_INT(p); | |
194 | } | |
195 | ||
196 | static inline void* UNIT_DEPENDENCY_TO_PTR(UnitDependency d) { | |
197 | return INT_TO_PTR(d); | |
198 | } | |
199 | ||
ef734fd6 LP |
200 | #include "job.h" |
201 | ||
a016b922 LP |
202 | struct UnitRef { |
203 | /* Keeps tracks of references to a unit. This is useful so | |
204 | * that we can merge two units if necessary and correct all | |
205 | * references to them */ | |
206 | ||
7f7d01ed ZJS |
207 | Unit *source, *target; |
208 | LIST_FIELDS(UnitRef, refs_by_target); | |
a016b922 LP |
209 | }; |
210 | ||
57b7a260 | 211 | typedef struct Unit { |
87f0e418 | 212 | Manager *manager; |
23a177ef | 213 | |
87f0e418 LP |
214 | UnitType type; |
215 | UnitLoadState load_state; | |
23a177ef | 216 | Unit *merged_into; |
87f0e418 | 217 | |
4562c355 | 218 | char *id; /* The one special name that we use for identification */ |
9e2f7c11 | 219 | char *instance; |
87f0e418 | 220 | |
4562c355 | 221 | Set *aliases; /* All the other names. */ |
87f0e418 | 222 | |
15ed3c3a LP |
223 | /* For each dependency type we can look up another Hashmap with this, whose key is a Unit* object, |
224 | * and whose value encodes why the dependency exists, using the UnitDependencyInfo type. i.e. a | |
225 | * Hashmap(UnitDependency → Hashmap(Unit* → UnitDependencyInfo)) */ | |
226 | Hashmap *dependencies; | |
eef85c4a | 227 | |
9e615fa3 LB |
228 | /* Similar, for RequiresMountsFor= and WantsMountsFor= path dependencies. The key is the path, the |
229 | * value the UnitDependencyInfo type */ | |
230 | Hashmap *mounts_for[_UNIT_MOUNT_DEPENDENCY_TYPE_MAX]; | |
7c8fa05c | 231 | |
87f0e418 | 232 | char *description; |
49dbfa7b | 233 | char **documentation; |
faf919f1 | 234 | |
23e9a7dd LP |
235 | /* The SELinux context used for checking access to this unit read off the unit file at load time (do |
236 | * not confuse with the selinux_context field in ExecContext which is the SELinux context we'll set | |
237 | * for processes) */ | |
238 | char *access_selinux_context; | |
239 | ||
6be1e7d5 | 240 | char *fragment_path; /* if loaded from a config file this is the primary path to it */ |
1b64d026 | 241 | char *source_path; /* if converted, the source file */ |
ae7a7182 | 242 | char **dropin_paths; |
f78f265f | 243 | |
c2911d48 | 244 | usec_t fragment_not_found_timestamp_hash; |
45fb0699 | 245 | usec_t fragment_mtime; |
1b64d026 | 246 | usec_t source_mtime; |
ae7a7182 | 247 | usec_t dropin_mtime; |
87f0e418 | 248 | |
4f4afc88 LP |
249 | /* If this is a transient unit we are currently writing, this is where we are writing it to */ |
250 | FILE *transient_file; | |
251 | ||
8c2524c7 | 252 | /* Freezer state */ |
af1e3365 | 253 | sd_bus_message *pending_freezer_invocation; |
8c2524c7 ZJS |
254 | FreezerState freezer_state; |
255 | ||
256 | /* Job timeout and action to take */ | |
257 | EmergencyAction job_timeout_action; | |
258 | usec_t job_timeout; | |
259 | usec_t job_running_timeout; | |
260 | char *job_timeout_reboot_arg; | |
261 | ||
e0209d83 | 262 | /* If there is something to do with this unit, then this is the installed job for it */ |
87f0e418 LP |
263 | Job *job; |
264 | ||
e0209d83 MS |
265 | /* JOB_NOP jobs are special and can be installed without disturbing the real job. */ |
266 | Job *nop_job; | |
267 | ||
bbc29086 DM |
268 | /* The slot used for watching NameOwnerChanged signals */ |
269 | sd_bus_slot *match_bus_slot; | |
a5a8776a | 270 | sd_bus_slot *get_name_owner_slot; |
bbc29086 | 271 | |
05a98afd LP |
272 | /* References to this unit from clients */ |
273 | sd_bus_track *bus_track; | |
274 | char **deserialized_refs; | |
275 | ||
57020a3a | 276 | /* References to this */ |
7f7d01ed | 277 | LIST_HEAD(UnitRef, refs_by_target); |
57020a3a | 278 | |
52661efd LP |
279 | /* Conditions to check */ |
280 | LIST_HEAD(Condition, conditions); | |
59fccdc5 | 281 | LIST_HEAD(Condition, asserts); |
52661efd | 282 | |
90bbc946 | 283 | dual_timestamp condition_timestamp; |
59fccdc5 | 284 | dual_timestamp assert_timestamp; |
90bbc946 | 285 | |
a483fb59 LP |
286 | /* Updated whenever the low-level state changes */ |
287 | dual_timestamp state_change_timestamp; | |
288 | ||
289 | /* Updated whenever the (high-level) active state enters or leaves the active or inactive states */ | |
63983207 LP |
290 | dual_timestamp inactive_exit_timestamp; |
291 | dual_timestamp active_enter_timestamp; | |
292 | dual_timestamp active_exit_timestamp; | |
293 | dual_timestamp inactive_enter_timestamp; | |
87f0e418 | 294 | |
ef734fd6 | 295 | /* Per type list */ |
ac155bb8 | 296 | LIST_FIELDS(Unit, units_by_type); |
c1e1601e | 297 | |
701cc384 | 298 | /* Load queue */ |
ac155bb8 | 299 | LIST_FIELDS(Unit, load_queue); |
701cc384 | 300 | |
c1e1601e | 301 | /* D-Bus queue */ |
ac155bb8 | 302 | LIST_FIELDS(Unit, dbus_queue); |
23a177ef LP |
303 | |
304 | /* Cleanup queue */ | |
ac155bb8 | 305 | LIST_FIELDS(Unit, cleanup_queue); |
9d58f1db | 306 | |
701cc384 | 307 | /* GC queue */ |
ac155bb8 | 308 | LIST_FIELDS(Unit, gc_queue); |
701cc384 | 309 | |
4ad49000 | 310 | /* CGroup realize members queue */ |
91a6073e | 311 | LIST_FIELDS(Unit, cgroup_realize_queue); |
4ad49000 | 312 | |
09e24654 LP |
313 | /* cgroup empty queue */ |
314 | LIST_FIELDS(Unit, cgroup_empty_queue); | |
315 | ||
afcfaa69 LP |
316 | /* cgroup OOM queue */ |
317 | LIST_FIELDS(Unit, cgroup_oom_queue); | |
318 | ||
19496554 MS |
319 | /* Target dependencies queue */ |
320 | LIST_FIELDS(Unit, target_deps_queue); | |
321 | ||
0bc488c9 | 322 | /* Queue of units with StopWhenUnneeded= set that shall be checked for clean-up. */ |
a3c1168a LP |
323 | LIST_FIELDS(Unit, stop_when_unneeded_queue); |
324 | ||
0bc488c9 LP |
325 | /* Queue of units that have an Uphold= dependency from some other unit, and should be checked for starting */ |
326 | LIST_FIELDS(Unit, start_when_upheld_queue); | |
327 | ||
56c59592 LP |
328 | /* Queue of units that have a BindTo= dependency on some other unit, and should possibly be shut down */ |
329 | LIST_FIELDS(Unit, stop_when_bound_queue); | |
330 | ||
6ac62d61 LP |
331 | /* Queue of units that should be checked if they can release resources now */ |
332 | LIST_FIELDS(Unit, release_resources_queue); | |
333 | ||
495e75ed LP |
334 | /* PIDs we keep an eye on. Note that a unit might have many more, but these are the ones we care |
335 | * enough about to process SIGCHLD for */ | |
336 | Set *pids; /* → PidRef* */ | |
a911bb9a | 337 | |
62a76913 LP |
338 | /* Used in SIGCHLD and sd_notify() message event invocation logic to avoid that we dispatch the same event |
339 | * multiple times on the same unit. */ | |
340 | unsigned sigchldgen; | |
341 | unsigned notifygen; | |
36f20ae3 | 342 | |
701cc384 | 343 | /* Used during GC sweeps */ |
eced69b3 | 344 | unsigned gc_marker; |
701cc384 | 345 | |
8821a00f LP |
346 | /* Error code when we didn't manage to load the unit (negative) */ |
347 | int load_error; | |
348 | ||
6bf0f408 | 349 | /* Put a ratelimit on unit starting */ |
7bf081a1 | 350 | RateLimit start_ratelimit; |
87a47f99 | 351 | EmergencyAction start_limit_action; |
53c35a76 | 352 | |
ff68472a ZJS |
353 | /* The unit has been marked for reload, restart, etc. Stored as 1u << marker1 | 1u << marker2. */ |
354 | unsigned markers; | |
355 | ||
7af67e9a LP |
356 | /* What to do on failure or success */ |
357 | EmergencyAction success_action, failure_action; | |
358 | int success_action_exit_status, failure_action_exit_status; | |
6bf0f408 LP |
359 | char *reboot_arg; |
360 | ||
0bc488c9 LP |
361 | /* Make sure we never enter endless loops with the StopWhenUnneeded=, BindsTo=, Uphold= logic */ |
362 | RateLimit auto_start_stop_ratelimit; | |
7223d500 | 363 | sd_event_source *auto_start_stop_event_source; |
bea355da | 364 | |
00d9ef85 LP |
365 | /* Reference to a specific UID/GID */ |
366 | uid_t ref_uid; | |
367 | gid_t ref_gid; | |
368 | ||
d2dc52db | 369 | /* Cached unit file state and preset */ |
a4375746 | 370 | UnitFileState unit_file_state; |
e77e07f6 | 371 | PresetAction unit_file_preset; |
a4375746 | 372 | |
66ebf6c0 TH |
373 | /* Where the cpu.stat or cpuacct.usage was at the time the unit was started */ |
374 | nsec_t cpu_usage_base; | |
fe700f46 | 375 | nsec_t cpu_usage_last; /* the most recently read value */ |
5ad096b3 | 376 | |
9824ab1f MY |
377 | /* Most recently read value of memory accounting metrics */ |
378 | uint64_t memory_accounting_last[_CGROUP_MEMORY_ACCOUNTING_METRIC_CACHED_LAST + 1]; | |
aac3384e | 379 | |
38c41427 | 380 | /* The current counter of OOM kills initiated by systemd-oomd */ |
fe8d22fb AZ |
381 | uint64_t managed_oom_kill_last; |
382 | ||
383 | /* The current counter of the oom_kill field in the memory.events cgroup attribute */ | |
afcfaa69 LP |
384 | uint64_t oom_kill_last; |
385 | ||
fbe14fc9 LP |
386 | /* Where the io.stat data was at the time the unit was started */ |
387 | uint64_t io_accounting_base[_CGROUP_IO_ACCOUNTING_METRIC_MAX]; | |
388 | uint64_t io_accounting_last[_CGROUP_IO_ACCOUNTING_METRIC_MAX]; /* the most recently read value */ | |
389 | ||
7c52a17b ZJS |
390 | /* Counterparts in the cgroup filesystem */ |
391 | char *cgroup_path; | |
184b4f78 | 392 | uint64_t cgroup_id; |
4e1dfa45 CD |
393 | CGroupMask cgroup_realized_mask; /* In which hierarchies does this unit's cgroup exist? (only relevant on cgroup v1) */ |
394 | CGroupMask cgroup_enabled_mask; /* Which controllers are enabled (or more correctly: enabled for the children) for this unit's cgroup? (only relevant on cgroup v2) */ | |
5238e957 | 395 | CGroupMask cgroup_invalidated_mask; /* A mask specifying controllers which shall be considered invalidated, and require re-realization */ |
5a62e5e2 | 396 | CGroupMask cgroup_members_mask; /* A cache for the controllers required by all children of this cgroup (only relevant for slice units) */ |
afcfaa69 LP |
397 | |
398 | /* Inotify watch descriptors for watching cgroup.events and memory.events on cgroupv2 */ | |
0bb814c2 | 399 | int cgroup_control_inotify_wd; |
afcfaa69 | 400 | int cgroup_memory_inotify_wd; |
7c52a17b | 401 | |
084c7007 RG |
402 | /* Device Controller BPF program */ |
403 | BPFProgram *bpf_device_control_installed; | |
404 | ||
6a48d82f DM |
405 | /* IP BPF Firewalling/accounting */ |
406 | int ip_accounting_ingress_map_fd; | |
407 | int ip_accounting_egress_map_fd; | |
0fd9c28c | 408 | uint64_t ip_accounting_extra[_CGROUP_IP_ACCOUNTING_METRIC_MAX]; |
6a48d82f DM |
409 | |
410 | int ipv4_allow_map_fd; | |
411 | int ipv6_allow_map_fd; | |
412 | int ipv4_deny_map_fd; | |
413 | int ipv6_deny_map_fd; | |
aa2b6f1d LP |
414 | BPFProgram *ip_bpf_ingress, *ip_bpf_ingress_installed; |
415 | BPFProgram *ip_bpf_egress, *ip_bpf_egress_installed; | |
0fd9c28c | 416 | |
fab34748 KL |
417 | Set *ip_bpf_custom_ingress; |
418 | Set *ip_bpf_custom_ingress_installed; | |
419 | Set *ip_bpf_custom_egress; | |
420 | Set *ip_bpf_custom_egress_installed; | |
6a48d82f | 421 | |
5f8ba20d JK |
422 | /* BPF programs managed (e.g. loaded to kernel) by an entity external to systemd, |
423 | * attached to unit cgroup by provided program fd and attach type. */ | |
424 | Hashmap *bpf_foreign_by_key; | |
425 | ||
3d027d4d | 426 | FDSet *initial_socket_bind_link_fds; |
91ce91c7 JK |
427 | #if BPF_FRAMEWORK |
428 | /* BPF links to BPF programs attached to cgroup/bind{4|6} hooks and | |
429 | * responsible for allowing or denying a unit to bind(2) to a socket | |
430 | * address. */ | |
431 | struct bpf_link *ipv4_socket_bind_link; | |
432 | struct bpf_link *ipv6_socket_bind_link; | |
433 | #endif | |
434 | ||
6f50d4f7 MV |
435 | FDSet *initial_restric_ifaces_link_fds; |
436 | #if BPF_FRAMEWORK | |
437 | struct bpf_link *restrict_ifaces_ingress_bpf_link; | |
438 | struct bpf_link *restrict_ifaces_egress_bpf_link; | |
439 | #endif | |
440 | ||
50be4f4a LP |
441 | /* Low-priority event source which is used to remove watched PIDs that have gone away, and subscribe to any new |
442 | * ones which might have appeared. */ | |
443 | sd_event_source *rewatch_pids_event_source; | |
444 | ||
294446dc LP |
445 | /* How to start OnSuccess=/OnFailure= units */ |
446 | JobMode on_success_job_mode; | |
7c52a17b ZJS |
447 | JobMode on_failure_job_mode; |
448 | ||
48b92b37 LB |
449 | /* If the job had a specific trigger that needs to be advertised (eg: a path unit), store it. */ |
450 | ActivationDetails *activation_details; | |
451 | ||
5afe510c LP |
452 | /* Tweaking the GC logic */ |
453 | CollectMode collect_mode; | |
454 | ||
4b58153d LP |
455 | /* The current invocation ID */ |
456 | sd_id128_t invocation_id; | |
457 | char invocation_id_string[SD_ID128_STRING_MAX]; /* useful when logging */ | |
458 | ||
9d58f1db LP |
459 | /* Garbage collect us we nobody wants or requires us anymore */ |
460 | bool stop_when_unneeded; | |
461 | ||
35b8ca3a | 462 | /* Create default dependencies */ |
a40eb732 LP |
463 | bool default_dependencies; |
464 | ||
559214cb LB |
465 | /* Configure so that the unit survives a system transition without stopping/starting. */ |
466 | bool survive_final_kill_signal; | |
467 | ||
b5e9dba8 LP |
468 | /* Refuse manual starting, allow starting only indirectly via dependency. */ |
469 | bool refuse_manual_start; | |
470 | ||
471 | /* Don't allow the user to stop this unit manually, allow stopping only indirectly via dependency. */ | |
472 | bool refuse_manual_stop; | |
473 | ||
2528a7a6 LP |
474 | /* Allow isolation requests */ |
475 | bool allow_isolate; | |
476 | ||
c8f4d764 LP |
477 | /* Ignore this unit when isolating */ |
478 | bool ignore_on_isolate; | |
479 | ||
49f43d5f | 480 | /* Did the last condition check succeed? */ |
90bbc946 | 481 | bool condition_result; |
59fccdc5 | 482 | bool assert_result; |
90bbc946 | 483 | |
c2756a68 LP |
484 | /* Is this a transient unit? */ |
485 | bool transient; | |
486 | ||
f5869324 LP |
487 | /* Is this a unit that is always running and cannot be stopped? */ |
488 | bool perpetual; | |
489 | ||
66fa4bdd | 490 | /* Booleans indicating membership of this unit in the various queues */ |
9d58f1db LP |
491 | bool in_load_queue:1; |
492 | bool in_dbus_queue:1; | |
493 | bool in_cleanup_queue:1; | |
701cc384 | 494 | bool in_gc_queue:1; |
91a6073e | 495 | bool in_cgroup_realize_queue:1; |
09e24654 | 496 | bool in_cgroup_empty_queue:1; |
afcfaa69 | 497 | bool in_cgroup_oom_queue:1; |
19496554 | 498 | bool in_target_deps_queue:1; |
a3c1168a | 499 | bool in_stop_when_unneeded_queue:1; |
0bc488c9 | 500 | bool in_start_when_upheld_queue:1; |
56c59592 | 501 | bool in_stop_when_bound_queue:1; |
6ac62d61 | 502 | bool in_release_resources_queue:1; |
701cc384 | 503 | |
9d58f1db | 504 | bool sent_dbus_new_signal:1; |
6c073082 | 505 | |
8c2524c7 ZJS |
506 | bool job_running_timeout_set:1; |
507 | ||
cd6d0a45 | 508 | bool in_audit:1; |
adefcf28 | 509 | bool on_console:1; |
a57f7e2c LP |
510 | |
511 | bool cgroup_realized:1; | |
bc432dc7 | 512 | bool cgroup_members_mask_valid:1; |
f78f265f | 513 | |
3c7416b6 LP |
514 | /* Reset cgroup accounting next time we fork something off */ |
515 | bool reset_accounting:1; | |
516 | ||
6bf0f408 LP |
517 | bool start_limit_hit:1; |
518 | ||
f78f265f | 519 | /* Did we already invoke unit_coldplug() for this unit? */ |
f8a30ce5 | 520 | bool coldplugged:1; |
05a98afd LP |
521 | |
522 | /* For transient units: whether to add a bus track reference after creating the unit */ | |
523 | bool bus_track_add:1; | |
d3070fbd LP |
524 | |
525 | /* Remember which unit state files we created */ | |
526 | bool exported_invocation_id:1; | |
527 | bool exported_log_level_max:1; | |
528 | bool exported_log_extra_fields:1; | |
5ac1530e ZJS |
529 | bool exported_log_ratelimit_interval:1; |
530 | bool exported_log_ratelimit_burst:1; | |
2e59b241 | 531 | |
527ede0c FB |
532 | /* Whether we warned about clamping the CPU quota period */ |
533 | bool warned_clamping_cpu_quota_period:1; | |
534 | ||
2e59b241 LP |
535 | /* When writing transient unit files, stores which section we stored last. If < 0, we didn't write any yet. If |
536 | * == 0 we are in the [Unit] section, if > 0 we are in the unit type-specific section. */ | |
845d247a | 537 | signed int last_section_private:2; |
57b7a260 | 538 | } Unit; |
87f0e418 | 539 | |
57b7a260 | 540 | typedef struct UnitStatusMessageFormats { |
c6918296 MS |
541 | const char *starting_stopping[2]; |
542 | const char *finished_start_job[_JOB_RESULT_MAX]; | |
543 | const char *finished_stop_job[_JOB_RESULT_MAX]; | |
eda0cbf0 ZJS |
544 | /* If this entry is present, it'll be called to provide a context-dependent format string, |
545 | * or NULL to fall back to finished_{start,stop}_job; if those are NULL too, fall back to generic. */ | |
546 | const char *(*finished_job)(Unit *u, JobType t, JobResult result); | |
57b7a260 | 547 | } UnitStatusMessageFormats; |
c6918296 | 548 | |
2e59b241 LP |
549 | /* Flags used when writing drop-in files or transient unit files */ |
550 | typedef enum UnitWriteFlags { | |
551 | /* Write a runtime unit file or drop-in (i.e. one below /run) */ | |
f3af6290 | 552 | UNIT_RUNTIME = 1 << 0, |
2e59b241 LP |
553 | |
554 | /* Write a persistent drop-in (i.e. one below /etc) */ | |
f3af6290 | 555 | UNIT_PERSISTENT = 1 << 1, |
2e59b241 LP |
556 | |
557 | /* Place this item in the per-unit-type private section, instead of [Unit] */ | |
f3af6290 | 558 | UNIT_PRIVATE = 1 << 2, |
2e59b241 | 559 | |
f3af6290 ZJS |
560 | /* Apply specifier escaping */ |
561 | UNIT_ESCAPE_SPECIFIERS = 1 << 3, | |
24536beb | 562 | |
f3af6290 ZJS |
563 | /* Escape elements of ExecStart= syntax, incl. prevention of variable expansion */ |
564 | UNIT_ESCAPE_EXEC_SYNTAX_ENV = 1 << 4, | |
2e59b241 | 565 | |
8c41640a ZJS |
566 | /* Escape elements of ExecStart=: syntax (no variable expansion) */ |
567 | UNIT_ESCAPE_EXEC_SYNTAX = 1 << 5, | |
2e59b241 LP |
568 | |
569 | /* Apply C escaping before writing */ | |
8c41640a | 570 | UNIT_ESCAPE_C = 1 << 6, |
2e59b241 LP |
571 | } UnitWriteFlags; |
572 | ||
573 | /* Returns true if neither persistent, nor runtime storage is requested, i.e. this is a check invocation only */ | |
6529ccfa LP |
574 | static inline bool UNIT_WRITE_FLAGS_NOOP(UnitWriteFlags flags) { |
575 | return (flags & (UNIT_RUNTIME|UNIT_PERSISTENT)) == 0; | |
576 | } | |
8e2af478 | 577 | |
57b7a260 FS |
578 | #include "kill.h" |
579 | ||
580 | typedef struct UnitVTable { | |
7d17cfbc MS |
581 | /* How much memory does an object of this unit type need */ |
582 | size_t object_size; | |
583 | ||
3ef63c31 LP |
584 | /* If greater than 0, the offset into the object where |
585 | * ExecContext is found, if the unit type has that */ | |
586 | size_t exec_context_offset; | |
587 | ||
4ad49000 LP |
588 | /* If greater than 0, the offset into the object where |
589 | * CGroupContext is found, if the unit type has that */ | |
590 | size_t cgroup_context_offset; | |
591 | ||
718db961 LP |
592 | /* If greater than 0, the offset into the object where |
593 | * KillContext is found, if the unit type has that */ | |
594 | size_t kill_context_offset; | |
595 | ||
613b411c | 596 | /* If greater than 0, the offset into the object where the |
e76506b7 | 597 | * pointer to ExecSharedRuntime is found, if the unit type has |
613b411c LP |
598 | * that */ |
599 | size_t exec_runtime_offset; | |
600 | ||
ee33e53a | 601 | /* The name of the configuration file section with the private settings of this unit */ |
4ad49000 | 602 | const char *private_section; |
71645aca | 603 | |
f975e971 LP |
604 | /* Config file sections this unit type understands, separated |
605 | * by NUL chars */ | |
606 | const char *sections; | |
607 | ||
e537352b | 608 | /* This should reset all type-specific variables. This should |
a16e1123 LP |
609 | * not allocate memory, and is called with zero-initialized |
610 | * data. It should hence only initialize variables that need | |
611 | * to be set != 0. */ | |
e537352b LP |
612 | void (*init)(Unit *u); |
613 | ||
a16e1123 LP |
614 | /* This should free all type-specific variables. It should be |
615 | * idempotent. */ | |
616 | void (*done)(Unit *u); | |
617 | ||
e537352b LP |
618 | /* Actually load data from disk. This may fail, and should set |
619 | * load_state to UNIT_LOADED, UNIT_MERGED or leave it at | |
620 | * UNIT_STUB if no configuration could be found. */ | |
621 | int (*load)(Unit *u); | |
622 | ||
f0831ed2 | 623 | /* During deserialization we only record the intended state to return to. With coldplug() we actually put the |
a95c0505 LP |
624 | * deserialized state in effect. This is where unit_notify() should be called to start things up. Note that |
625 | * this callback is invoked *before* we leave the reloading state of the manager, i.e. *before* we consider the | |
626 | * reloading to be complete. Thus, this callback should just restore the exact same state for any unit that was | |
627 | * in effect before the reload, i.e. units should not catch up with changes happened during the reload. That's | |
628 | * what catchup() below is for. */ | |
be847e82 | 629 | int (*coldplug)(Unit *u); |
87f0e418 | 630 | |
a95c0505 LP |
631 | /* This is called shortly after all units' coldplug() call was invoked, and *after* the manager left the |
632 | * reloading state. It's supposed to catch up with state changes due to external events we missed so far (for | |
633 | * example because they took place while we were reloading/reexecing) */ | |
f0831ed2 LP |
634 | void (*catchup)(Unit *u); |
635 | ||
87f0e418 LP |
636 | void (*dump)(Unit *u, FILE *f, const char *prefix); |
637 | ||
638 | int (*start)(Unit *u); | |
639 | int (*stop)(Unit *u); | |
640 | int (*reload)(Unit *u); | |
641 | ||
380dc8b0 LP |
642 | /* Clear out the various runtime/state/cache/logs/configuration data */ |
643 | int (*clean)(Unit *u, ExecCleanMask m); | |
644 | ||
16b6af6a AV |
645 | /* Freeze or thaw the unit. Returns > 0 to indicate that the request will be handled asynchronously; unit_frozen |
646 | * or unit_thawed should be called once the operation is done. Returns 0 if done successfully, or < 0 on error. */ | |
647 | int (*freezer_action)(Unit *u, FreezerAction a); | |
d9e45bc3 MS |
648 | bool (*can_freeze)(Unit *u); |
649 | ||
380dc8b0 LP |
650 | /* Return which kind of data can be cleaned */ |
651 | int (*can_clean)(Unit *u, ExecCleanMask *ret); | |
652 | ||
87f0e418 LP |
653 | bool (*can_reload)(Unit *u); |
654 | ||
1ece068e ZJS |
655 | /* Serialize state and file descriptors that should be carried over into the new |
656 | * instance after reexecution. */ | |
a16e1123 LP |
657 | int (*serialize)(Unit *u, FILE *f, FDSet *fds); |
658 | ||
659 | /* Restore one item from the serialization */ | |
660 | int (*deserialize_item)(Unit *u, const char *key, const char *data, FDSet *fds); | |
661 | ||
01e10de3 | 662 | /* Try to match up fds with what we need for this unit */ |
9ff1a6f1 | 663 | void (*distribute_fds)(Unit *u, FDSet *fds); |
01e10de3 | 664 | |
87f0e418 LP |
665 | /* Boils down the more complex internal state of this unit to |
666 | * a simpler one that the engine can understand */ | |
667 | UnitActiveState (*active_state)(Unit *u); | |
668 | ||
10a94420 LP |
669 | /* Returns the substate specific to this unit type as |
670 | * string. This is purely information so that we can give the | |
35b8ca3a | 671 | * user a more fine grained explanation in which actual state a |
10a94420 LP |
672 | * unit is in. */ |
673 | const char* (*sub_state_to_string)(Unit *u); | |
674 | ||
deb4e708 MK |
675 | /* Additionally to UnitActiveState determine whether unit is to be restarted. */ |
676 | bool (*will_restart)(Unit *u); | |
677 | ||
f2f725e5 ZJS |
678 | /* Return false when there is a reason to prevent this unit from being gc'ed |
679 | * even though nothing references it and it isn't active in any way. */ | |
680 | bool (*may_gc)(Unit *u); | |
701cc384 | 681 | |
39c79477 ZJS |
682 | /* Return true when the unit is not controlled by the manager (e.g. extrinsic mounts). */ |
683 | bool (*is_extrinsic)(Unit *u); | |
684 | ||
7eb2a8a1 LP |
685 | /* When the unit is not running and no job for it queued we shall release its runtime resources */ |
686 | void (*release_resources)(Unit *u); | |
a354329f | 687 | |
718db961 | 688 | /* Invoked on every child that died */ |
87f0e418 | 689 | void (*sigchld_event)(Unit *u, pid_t pid, int code, int status); |
7824bbeb | 690 | |
fdf20a31 MM |
691 | /* Reset failed state if we are in failed state */ |
692 | void (*reset_failed)(Unit *u); | |
5632e374 | 693 | |
afcfaa69 | 694 | /* Called whenever any of the cgroups this unit watches for ran empty */ |
4ad49000 | 695 | void (*notify_cgroup_empty)(Unit *u); |
8e274523 | 696 | |
afcfaa69 | 697 | /* Called whenever an OOM kill event on this unit was seen */ |
38c41427 | 698 | void (*notify_cgroup_oom)(Unit *u, bool managed_oom); |
afcfaa69 | 699 | |
8c47c732 | 700 | /* Called whenever a process of this unit sends us a message */ |
fcee2755 | 701 | void (*notify_message)(Unit *u, const struct ucred *ucred, char * const *tags, FDSet *fds); |
8c47c732 | 702 | |
00d9ef85 | 703 | /* Called whenever a name this Unit registered for comes or goes away. */ |
fc67a943 | 704 | void (*bus_name_owner_change)(Unit *u, const char *new_owner); |
05e343b7 | 705 | |
8e2af478 | 706 | /* Called for each property that is being set */ |
2e59b241 | 707 | int (*bus_set_property)(Unit *u, const char *name, sd_bus_message *message, UnitWriteFlags flags, sd_bus_error *error); |
8e2af478 LP |
708 | |
709 | /* Called after at least one property got changed to apply the necessary change */ | |
710 | int (*bus_commit_properties)(Unit *u); | |
711 | ||
a7f241db LP |
712 | /* Return the unit this unit is following */ |
713 | Unit *(*following)(Unit *u); | |
714 | ||
6210e7fc LP |
715 | /* Return the set of units that are following each other */ |
716 | int (*following_set)(Unit *u, Set **s); | |
717 | ||
3ecaa09b LP |
718 | /* Invoked each time a unit this unit is triggering changes |
719 | * state or gains/loses a job */ | |
720 | void (*trigger_notify)(Unit *u, Unit *trigger); | |
721 | ||
8742514c LP |
722 | /* Called whenever CLOCK_REALTIME made a jump */ |
723 | void (*time_change)(Unit *u); | |
724 | ||
bbf5fd8e LP |
725 | /* Called whenever /etc/localtime was modified */ |
726 | void (*timezone_change)(Unit *u); | |
727 | ||
7a7821c8 LP |
728 | /* Returns the next timeout of a unit */ |
729 | int (*get_timeout)(Unit *u, usec_t *timeout); | |
68db7a3b | 730 | |
f5a9d2ee | 731 | /* Returns the start timeout of a unit */ |
732 | usec_t (*get_timeout_start_usec)(Unit *u); | |
733 | ||
28364bc3 | 734 | /* Returns the main PID if there is any defined, or NULL. */ |
3e22239d | 735 | PidRef* (*main_pid)(Unit *u, bool *ret_is_alien); |
291d565a | 736 | |
28364bc3 | 737 | /* Returns the control PID if there is any defined, or NULL. */ |
37eb258e | 738 | PidRef* (*control_pid)(Unit *u); |
291d565a | 739 | |
bb2c7685 LP |
740 | /* Returns true if the unit currently needs access to the console */ |
741 | bool (*needs_console)(Unit *u); | |
742 | ||
7af67e9a LP |
743 | /* Returns the exit status to propagate in case of FailureAction=exit/SuccessAction=exit; usually returns the |
744 | * exit code of the "main" process of the service or similar. */ | |
745 | int (*exit_status)(Unit *u); | |
746 | ||
5e1669ff ZJS |
747 | /* Return a copy of the status string pointer. */ |
748 | const char* (*status_text)(Unit *u); | |
749 | ||
04eb582a LP |
750 | /* Like the enumerate() callback further down, but only enumerates the perpetual units, i.e. all units that |
751 | * unconditionally exist and are always active. The main reason to keep both enumeration functions separate is | |
752 | * philosophical: the state of perpetual units should be put in place by coldplug(), while the state of those | |
753 | * discovered through regular enumeration should be put in place by catchup(), see below. */ | |
754 | void (*enumerate_perpetual)(Manager *m); | |
755 | ||
f0831ed2 LP |
756 | /* This is called for each unit type and should be used to enumerate units already existing in the system |
757 | * internally and load them. However, everything that is loaded here should still stay in inactive state. It is | |
04eb582a | 758 | * the job of the catchup() call above to put the units into the discovered state. */ |
ba64af90 | 759 | void (*enumerate)(Manager *m); |
f50e0a01 LP |
760 | |
761 | /* Type specific cleanups. */ | |
7824bbeb | 762 | void (*shutdown)(Manager *m); |
9d58f1db | 763 | |
cbd4a8df | 764 | /* If this function is set and returns false all jobs for units |
0faacd47 | 765 | * of this type will immediately fail. */ |
1c2e9646 | 766 | bool (*supported)(void); |
0faacd47 | 767 | |
9727f242 DDM |
768 | /* If this function is set, it's invoked first as part of starting a unit to allow start rate |
769 | * limiting checks to occur before we do anything else. */ | |
705578c3 | 770 | int (*can_start)(Unit *u); |
9727f242 | 771 | |
47261967 LP |
772 | /* Returns > 0 if the whole subsystem is ratelimited, and new start operations should not be started |
773 | * for this unit type right now. */ | |
774 | int (*subsystem_ratelimited)(Manager *m); | |
775 | ||
718db961 | 776 | /* The strings to print in status messages */ |
c6918296 MS |
777 | UnitStatusMessageFormats status_message_formats; |
778 | ||
c2756a68 | 779 | /* True if transient units of this type are OK */ |
cbd4a8df | 780 | bool can_transient; |
c5a97ed1 | 781 | |
1d9cc876 | 782 | /* True if cgroup delegation is permissible */ |
cbd4a8df | 783 | bool can_delegate; |
1d9cc876 | 784 | |
c80a9a33 | 785 | /* True if the unit type triggers other units, i.e. can have a UNIT_TRIGGERS dependency */ |
cbd4a8df | 786 | bool can_trigger; |
c80a9a33 LP |
787 | |
788 | /* True if the unit type knows a failure state, and thus can be source of an OnFailure= dependency */ | |
cbd4a8df | 789 | bool can_fail; |
c80a9a33 | 790 | |
d4fd1cf2 | 791 | /* True if units of this type shall be startable only once and then never again */ |
cbd4a8df | 792 | bool once_only; |
d4fd1cf2 | 793 | |
755021d4 ZJS |
794 | /* Do not serialize this unit when preparing for root switch */ |
795 | bool exclude_from_switch_root_serialization; | |
796 | ||
c5a97ed1 | 797 | /* True if queued jobs of this type should be GC'ed if no other job needs them anymore */ |
cbd4a8df | 798 | bool gc_jobs; |
4d824a4e | 799 | |
0923b425 | 800 | /* True if systemd-oomd can monitor and act on this unit's recursive children's cgroups */ |
cbd4a8df | 801 | bool can_set_managed_oom; |
d52b8493 | 802 | |
b2bfd121 LP |
803 | /* If true, we'll notify plymouth about this unit */ |
804 | bool notify_plymouth; | |
805 | ||
d52b8493 LP |
806 | /* The audit events to generate on start + stop (or 0 if none shall be generated) */ |
807 | int audit_start_message_type; | |
808 | int audit_stop_message_type; | |
57b7a260 | 809 | } UnitVTable; |
87f0e418 LP |
810 | |
811 | extern const UnitVTable * const unit_vtable[_UNIT_TYPE_MAX]; | |
812 | ||
c2503e35 | 813 | static inline const UnitVTable* UNIT_VTABLE(const Unit *u) { |
6529ccfa LP |
814 | return unit_vtable[u->type]; |
815 | } | |
87f0e418 LP |
816 | |
817 | /* For casting a unit into the various unit types */ | |
818 | #define DEFINE_CAST(UPPERCASE, MixedCase) \ | |
819 | static inline MixedCase* UPPERCASE(Unit *u) { \ | |
ac155bb8 | 820 | if (_unlikely_(!u || u->type != UNIT_##UPPERCASE)) \ |
87f0e418 LP |
821 | return NULL; \ |
822 | \ | |
823 | return (MixedCase*) u; \ | |
824 | } | |
825 | ||
826 | /* For casting the various unit types into a unit */ | |
bbf11206 LP |
827 | #define UNIT(u) \ |
828 | ({ \ | |
829 | typeof(u) _u_ = (u); \ | |
830 | Unit *_w_ = _u_ ? &(_u_)->meta : NULL; \ | |
831 | _w_; \ | |
832 | }) | |
87f0e418 | 833 | |
35b7ff80 LP |
834 | #define UNIT_HAS_EXEC_CONTEXT(u) (UNIT_VTABLE(u)->exec_context_offset > 0) |
835 | #define UNIT_HAS_CGROUP_CONTEXT(u) (UNIT_VTABLE(u)->cgroup_context_offset > 0) | |
836 | #define UNIT_HAS_KILL_CONTEXT(u) (UNIT_VTABLE(u)->kill_context_offset > 0) | |
837 | ||
15ed3c3a LP |
838 | Unit* unit_has_dependency(const Unit *u, UnitDependencyAtom atom, Unit *other); |
839 | int unit_get_dependency_array(const Unit *u, UnitDependencyAtom atom, Unit ***ret_array); | |
83123a44 | 840 | int unit_get_transitive_dependency_set(Unit *u, UnitDependencyAtom atom, Set **ret); |
15ed3c3a LP |
841 | |
842 | static inline Hashmap* unit_get_dependencies(Unit *u, UnitDependency d) { | |
843 | return hashmap_get(u->dependencies, UNIT_DEPENDENCY_TO_PTR(d)); | |
844 | } | |
845 | ||
6529ccfa | 846 | static inline Unit* UNIT_TRIGGER(Unit *u) { |
15ed3c3a | 847 | return unit_has_dependency(u, UNIT_ATOM_TRIGGERS, NULL); |
6529ccfa | 848 | } |
3ecaa09b | 849 | |
12f64221 | 850 | static inline Unit* UNIT_GET_SLICE(const Unit *u) { |
d219a2b0 | 851 | return unit_has_dependency(u, UNIT_ATOM_IN_SLICE, NULL); |
12f64221 LP |
852 | } |
853 | ||
75db809a ZJS |
854 | Unit* unit_new(Manager *m, size_t size); |
855 | Unit* unit_free(Unit *u); | |
dc409696 | 856 | DEFINE_TRIVIAL_CLEANUP_FUNC(Unit *, unit_free); |
87f0e418 | 857 | |
a581e45a | 858 | int unit_new_for_name(Manager *m, size_t size, const char *name, Unit **ret); |
87f0e418 | 859 | int unit_add_name(Unit *u, const char *name); |
9e2f7c11 | 860 | |
eef85c4a LP |
861 | int unit_add_dependency(Unit *u, UnitDependency d, Unit *other, bool add_reference, UnitDependencyMask mask); |
862 | int unit_add_two_dependencies(Unit *u, UnitDependency d, UnitDependency e, Unit *other, bool add_reference, UnitDependencyMask mask); | |
2c966c03 | 863 | |
35d8c19a | 864 | int unit_add_dependency_by_name(Unit *u, UnitDependency d, const char *name, bool add_reference, UnitDependencyMask mask); |
5a724170 | 865 | int unit_add_two_dependencies_by_name(Unit *u, UnitDependency d, UnitDependency e, const char *name, bool add_reference, UnitDependencyMask mask); |
2c966c03 | 866 | |
23a177ef LP |
867 | int unit_add_exec_dependencies(Unit *u, ExecContext *c); |
868 | ||
0ae97ec1 | 869 | int unit_choose_id(Unit *u, const char *name); |
f50e0a01 | 870 | int unit_set_description(Unit *u, const char *description); |
87f0e418 | 871 | |
6ac62d61 LP |
872 | void unit_release_resources(Unit *u); |
873 | ||
f2f725e5 | 874 | bool unit_may_gc(Unit *u); |
701cc384 | 875 | |
39c79477 ZJS |
876 | static inline bool unit_is_extrinsic(Unit *u) { |
877 | return u->perpetual || | |
878 | (UNIT_VTABLE(u)->is_extrinsic && UNIT_VTABLE(u)->is_extrinsic(u)); | |
879 | } | |
880 | ||
5e1669ff ZJS |
881 | static inline const char* unit_status_text(Unit *u) { |
882 | if (u && UNIT_VTABLE(u)->status_text) | |
883 | return UNIT_VTABLE(u)->status_text(u); | |
884 | return NULL; | |
885 | } | |
886 | ||
87f0e418 | 887 | void unit_add_to_load_queue(Unit *u); |
c1e1601e | 888 | void unit_add_to_dbus_queue(Unit *u); |
23a177ef | 889 | void unit_add_to_cleanup_queue(Unit *u); |
701cc384 | 890 | void unit_add_to_gc_queue(Unit *u); |
19496554 | 891 | void unit_add_to_target_deps_queue(Unit *u); |
fda09318 | 892 | void unit_submit_to_stop_when_unneeded_queue(Unit *u); |
0bc488c9 | 893 | void unit_submit_to_start_when_upheld_queue(Unit *u); |
56c59592 | 894 | void unit_submit_to_stop_when_bound_queue(Unit *u); |
6ac62d61 | 895 | void unit_submit_to_release_resources_queue(Unit *u); |
87f0e418 LP |
896 | |
897 | int unit_merge(Unit *u, Unit *other); | |
23a177ef LP |
898 | int unit_merge_by_name(Unit *u, const char *other); |
899 | ||
44a6b1b6 | 900 | Unit *unit_follow_merge(Unit *u) _pure_; |
87f0e418 | 901 | |
c3620770 | 902 | int unit_load_fragment_and_dropin(Unit *u, bool fragment_required); |
87f0e418 LP |
903 | int unit_load(Unit *unit); |
904 | ||
899acf5c | 905 | int unit_set_slice(Unit *u, Unit *slice); |
d79200e2 | 906 | int unit_set_default_slice(Unit *u); |
a016b922 | 907 | |
44a6b1b6 | 908 | const char *unit_description(Unit *u) _pure_; |
04d232d8 | 909 | const char *unit_status_string(Unit *u, char **combined); |
87f0e418 | 910 | |
303ee601 | 911 | bool unit_has_name(const Unit *u, const char *name); |
f278026d | 912 | |
87f0e418 | 913 | UnitActiveState unit_active_state(Unit *u); |
d9e45bc3 | 914 | FreezerState unit_freezer_state(Unit *u); |
87f0e418 | 915 | |
10a94420 LP |
916 | const char* unit_sub_state_to_string(Unit *u); |
917 | ||
44a6b1b6 ZJS |
918 | bool unit_can_reload(Unit *u) _pure_; |
919 | bool unit_can_start(Unit *u) _pure_; | |
f5869324 | 920 | bool unit_can_stop(Unit *u) _pure_; |
44a6b1b6 | 921 | bool unit_can_isolate(Unit *u) _pure_; |
87f0e418 | 922 | |
48b92b37 | 923 | int unit_start(Unit *u, ActivationDetails *details); |
87f0e418 LP |
924 | int unit_stop(Unit *u); |
925 | int unit_reload(Unit *u); | |
926 | ||
ec5e2a13 | 927 | int unit_kill(Unit *u, KillWho w, int signo, int code, int value, sd_bus_error *ret_error); |
8a0867d6 | 928 | |
38c41427 NK |
929 | void unit_notify_cgroup_oom(Unit *u, bool managed_oom); |
930 | ||
96b09de5 | 931 | void unit_notify(Unit *u, UnitActiveState os, UnitActiveState ns, bool reload_success); |
87f0e418 | 932 | |
d70dfe1b | 933 | int unit_watch_pidref(Unit *u, const PidRef *pid, bool exclusive); |
f75f613d | 934 | int unit_watch_pid(Unit *u, pid_t pid, bool exclusive); |
d70dfe1b | 935 | void unit_unwatch_pidref(Unit *u, const PidRef *pid); |
87f0e418 | 936 | void unit_unwatch_pid(Unit *u, pid_t pid); |
a911bb9a | 937 | void unit_unwatch_all_pids(Unit *u); |
ea1e0bf1 | 938 | void unit_unwatch_pidref_done(Unit *u, PidRef *pidref); |
a911bb9a | 939 | |
50be4f4a LP |
940 | int unit_enqueue_rewatch_pids(Unit *u); |
941 | void unit_dequeue_rewatch_pids(Unit *u); | |
87f0e418 | 942 | |
9806e87d | 943 | int unit_install_bus_match(Unit *u, sd_bus *bus, const char *name); |
05e343b7 LP |
944 | int unit_watch_bus_name(Unit *u, const char *name); |
945 | void unit_unwatch_bus_name(Unit *u, const char *name); | |
946 | ||
87f0e418 LP |
947 | bool unit_job_is_applicable(Unit *u, JobType j); |
948 | ||
0301abf4 LP |
949 | int set_unit_path(const char *p); |
950 | ||
50159e6a | 951 | char *unit_dbus_path(Unit *u); |
4b58153d | 952 | char *unit_dbus_path_invocation_id(Unit *u); |
50159e6a | 953 | |
f6ff8c29 LP |
954 | int unit_load_related_unit(Unit *u, const char *type, Unit **_found); |
955 | ||
d336ba9f | 956 | int unit_add_node_dependency(Unit *u, const char *what, UnitDependency d, UnitDependencyMask mask); |
44b0d1fd | 957 | int unit_add_blockdev_dependency(Unit *u, const char *what, UnitDependencyMask mask); |
6e2ef85b | 958 | |
be847e82 | 959 | int unit_coldplug(Unit *u); |
f0831ed2 | 960 | void unit_catchup(Unit *u); |
cca098b0 | 961 | |
04d232d8 | 962 | void unit_status_printf(Unit *u, StatusType status_type, const char *status, const char *format, const char *ident) _printf_(4, 0); |
9e58ff9c | 963 | |
45fb0699 LP |
964 | bool unit_need_daemon_reload(Unit *u); |
965 | ||
fdf20a31 | 966 | void unit_reset_failed(Unit *u); |
5632e374 | 967 | |
a7f241db | 968 | Unit *unit_following(Unit *u); |
eeaedb7c | 969 | int unit_following_set(Unit *u, Set **s); |
a7f241db | 970 | |
9444b1f2 LP |
971 | const char *unit_slice_name(Unit *u); |
972 | ||
44a6b1b6 ZJS |
973 | bool unit_stop_pending(Unit *u) _pure_; |
974 | bool unit_inactive_or_pending(Unit *u) _pure_; | |
31afa0a4 | 975 | bool unit_active_or_pending(Unit *u); |
52a12341 | 976 | bool unit_will_restart_default(Unit *u); |
deb4e708 | 977 | bool unit_will_restart(Unit *u); |
18ffdfda | 978 | |
bba34eed LP |
979 | int unit_add_default_target_dependency(Unit *u, Unit *target); |
980 | ||
294446dc | 981 | void unit_start_on_failure(Unit *u, const char *dependency_name, UnitDependencyAtom atom, JobMode job_mode); |
3ecaa09b | 982 | void unit_trigger_notify(Unit *u); |
c0daa706 | 983 | |
a4375746 | 984 | UnitFileState unit_get_unit_file_state(Unit *u); |
e77e07f6 | 985 | PresetAction unit_get_unit_file_preset(Unit *u); |
a4375746 | 986 | |
7f7d01ed | 987 | Unit* unit_ref_set(UnitRef *ref, Unit *source, Unit *target); |
57020a3a LP |
988 | void unit_ref_unset(UnitRef *ref); |
989 | ||
7f7d01ed ZJS |
990 | #define UNIT_DEREF(ref) ((ref).target) |
991 | #define UNIT_ISSET(ref) (!!(ref).target) | |
57020a3a | 992 | |
598459ce | 993 | int unit_patch_contexts(Unit *u); |
e06c73cc | 994 | |
c2503e35 | 995 | ExecContext *unit_get_exec_context(const Unit *u) _pure_; |
718db961 | 996 | KillContext *unit_get_kill_context(Unit *u) _pure_; |
4ad49000 | 997 | CGroupContext *unit_get_cgroup_context(Unit *u) _pure_; |
598459ce | 998 | |
28135da3 | 999 | ExecRuntime *unit_get_exec_runtime(Unit *u) _pure_; |
613b411c LP |
1000 | |
1001 | int unit_setup_exec_runtime(Unit *u); | |
3ef63c31 | 1002 | |
68ecb48b | 1003 | const char* unit_escape_setting(const char *s, UnitWriteFlags flags, char **buf); |
2e59b241 | 1004 | char* unit_concat_strv(char **l, UnitWriteFlags flags); |
b9ec9359 | 1005 | |
2e59b241 LP |
1006 | int unit_write_setting(Unit *u, UnitWriteFlags flags, const char *name, const char *data); |
1007 | int unit_write_settingf(Unit *u, UnitWriteFlags mode, const char *name, const char *format, ...) _printf_(4,5); | |
b9ec9359 | 1008 | |
b826e317 | 1009 | int unit_kill_context(Unit *u, KillOperation k); |
cd2086fe | 1010 | |
c2756a68 LP |
1011 | int unit_make_transient(Unit *u); |
1012 | ||
9e615fa3 | 1013 | int unit_add_mounts_for(Unit *u, const char *path, UnitDependencyMask mask, UnitMountDependencyType type); |
a57f7e2c | 1014 | |
1c2e9646 LP |
1015 | bool unit_type_supported(UnitType t); |
1016 | ||
0f13f3bd LP |
1017 | bool unit_is_pristine(Unit *u); |
1018 | ||
a3c1168a | 1019 | bool unit_is_unneeded(Unit *u); |
0bc488c9 | 1020 | bool unit_is_upheld_by_active(Unit *u, Unit **ret_culprit); |
56c59592 | 1021 | bool unit_is_bound_by_inactive(Unit *u, Unit **ret_culprit); |
a3c1168a | 1022 | |
37eb258e | 1023 | PidRef* unit_control_pid(Unit *u); |
3e22239d YW |
1024 | PidRef* unit_main_pid_full(Unit *u, bool *ret_is_alien); |
1025 | static inline PidRef* unit_main_pid(Unit *u) { | |
1026 | return unit_main_pid_full(u, NULL); | |
1027 | } | |
291d565a | 1028 | |
8b4305c7 | 1029 | void unit_warn_if_dir_nonempty(Unit *u, const char* where); |
25cd4964 | 1030 | int unit_fail_if_noncanonical(Unit *u, const char* where); |
8b4305c7 | 1031 | |
97a3f4ee | 1032 | int unit_test_start_limit(Unit *u); |
07299350 | 1033 | |
00d9ef85 LP |
1034 | int unit_ref_uid_gid(Unit *u, uid_t uid, gid_t gid); |
1035 | void unit_unref_uid_gid(Unit *u, bool destroy_now); | |
1036 | ||
1037 | void unit_notify_user_lookup(Unit *u, uid_t uid, gid_t gid); | |
1038 | ||
2d3b784d | 1039 | int unit_set_invocation_id(Unit *u, sd_id128_t id); |
4b58153d LP |
1040 | int unit_acquire_invocation_id(Unit *u); |
1041 | ||
1ad6e8b3 | 1042 | int unit_set_exec_params(Unit *s, ExecParameters *p); |
f0d47797 | 1043 | |
4775b55d LP |
1044 | int unit_fork_helper_process(Unit *u, const char *name, PidRef *ret); |
1045 | int unit_fork_and_watch_rm_rf(Unit *u, char **paths, PidRef *ret); | |
a79279c7 | 1046 | |
c999cf38 LP |
1047 | void unit_remove_dependencies(Unit *u, UnitDependencyMask mask); |
1048 | ||
d3070fbd LP |
1049 | void unit_export_state_files(Unit *u); |
1050 | void unit_unlink_state_files(Unit *u); | |
1051 | ||
3c7416b6 LP |
1052 | int unit_prepare_exec(Unit *u); |
1053 | ||
4d1b2df1 LP |
1054 | int unit_log_leftover_process_start(const PidRef* pid, int sig, void *userdata); |
1055 | int unit_log_leftover_process_stop(const PidRef* pid, int sig, void *userdata); | |
1056 | ||
4c425434 | 1057 | int unit_warn_leftover_processes(Unit *u, cg_kill_log_func_t log_func); |
a4634b21 | 1058 | |
bb2c7685 LP |
1059 | bool unit_needs_console(Unit *u); |
1060 | ||
d70dfe1b | 1061 | int unit_pid_attachable(Unit *unit, const PidRef *pid, sd_bus_error *error); |
6592b975 | 1062 | |
28a2dfe8 ZJS |
1063 | static inline bool unit_has_job_type(Unit *u, JobType type) { |
1064 | return u && u->job && u->job->type == type; | |
1065 | } | |
1066 | ||
c2503e35 RH |
1067 | static inline bool unit_log_level_test(const Unit *u, int level) { |
1068 | ExecContext *ec = unit_get_exec_context(u); | |
1069 | return !ec || ec->log_level_max < 0 || ec->log_level_max >= LOG_PRI(level); | |
1070 | } | |
1071 | ||
31cd5f63 AZ |
1072 | /* unit_log_skip is for cases like ExecCondition= where a unit is considered "done" |
1073 | * after some execution, rather than succeeded or failed. */ | |
1074 | void unit_log_skip(Unit *u, const char *result); | |
523ee2d4 | 1075 | void unit_log_success(Unit *u); |
7c047d74 | 1076 | void unit_log_failure(Unit *u, const char *result); |
aac99f30 ZJS |
1077 | static inline void unit_log_result(Unit *u, bool success, const char *result) { |
1078 | if (success) | |
1079 | unit_log_success(u); | |
1080 | else | |
1081 | unit_log_failure(u, result); | |
1082 | } | |
1083 | ||
5cc2cd1c | 1084 | void unit_log_process_exit(Unit *u, const char *kind, const char *command, bool success, int code, int status); |
7c047d74 | 1085 | |
7af67e9a LP |
1086 | int unit_exit_status(Unit *u); |
1087 | int unit_success_action_exit_status(Unit *u); | |
1088 | int unit_failure_action_exit_status(Unit *u); | |
1089 | ||
a4191c9f LP |
1090 | int unit_test_trigger_loaded(Unit *u); |
1091 | ||
bb0c0d6f | 1092 | void unit_destroy_runtime_data(Unit *u, const ExecContext *context); |
380dc8b0 LP |
1093 | int unit_clean(Unit *u, ExecCleanMask mask); |
1094 | int unit_can_clean(Unit *u, ExecCleanMask *ret_mask); | |
1095 | ||
f882c102 DDM |
1096 | bool unit_can_start_refuse_manual(Unit *u); |
1097 | bool unit_can_stop_refuse_manual(Unit *u); | |
1098 | bool unit_can_isolate_refuse_manual(Unit *u); | |
1099 | ||
d9e45bc3 | 1100 | bool unit_can_freeze(Unit *u); |
16b6af6a AV |
1101 | int unit_freezer_action(Unit *u, FreezerAction action); |
1102 | void unit_next_freezer_state(Unit *u, FreezerAction a, FreezerState *ret, FreezerState *ret_tgt); | |
d9e45bc3 | 1103 | void unit_frozen(Unit *u); |
d9e45bc3 MS |
1104 | void unit_thawed(Unit *u); |
1105 | ||
6e548561 DDM |
1106 | Condition *unit_find_failed_condition(Unit *u); |
1107 | ||
e9276800 LP |
1108 | int unit_arm_timer(Unit *u, sd_event_source **source, bool relative, usec_t usec, sd_event_time_handler_t handler); |
1109 | ||
a8157796 LP |
1110 | int unit_compare_priority(Unit *a, Unit *b); |
1111 | ||
9e615fa3 LB |
1112 | UnitMountDependencyType unit_mount_dependency_type_from_string(const char *s) _const_; |
1113 | const char* unit_mount_dependency_type_to_string(UnitMountDependencyType t) _const_; | |
1114 | UnitDependency unit_mount_dependency_type_to_dependency_type(UnitMountDependencyType t) _pure_; | |
1115 | ||
e8e581bf ZJS |
1116 | /* Macros which append UNIT= or USER_UNIT= to the message */ |
1117 | ||
ac513634 | 1118 | #define log_unit_full_errno_zerook(unit, level, error, ...) \ |
f2341e0a | 1119 | ({ \ |
8dec4a9d | 1120 | const Unit *_u = (unit); \ |
c2503e35 | 1121 | const int _l = (level); \ |
1092e82b LB |
1122 | bool _do_log = !(log_get_max_level() < LOG_PRI(_l) || \ |
1123 | (_u && !unit_log_level_test(_u, _l))); \ | |
1124 | const ExecContext *_c = _do_log && _u ? \ | |
1125 | unit_get_exec_context(_u) : NULL; \ | |
1126 | LOG_CONTEXT_PUSH_IOV(_c ? _c->log_extra_fields : NULL, \ | |
1127 | _c ? _c->n_log_extra_fields : 0); \ | |
1128 | !_do_log ? -ERRNO_VALUE(error) : \ | |
c2503e35 RH |
1129 | _u ? log_object_internal(_l, error, PROJECT_FILE, __LINE__, __func__, _u->manager->unit_log_field, _u->id, _u->manager->invocation_log_field, _u->invocation_id_string, ##__VA_ARGS__) : \ |
1130 | log_internal(_l, error, PROJECT_FILE, __LINE__, __func__, ##__VA_ARGS__); \ | |
f2341e0a LP |
1131 | }) |
1132 | ||
ac513634 YW |
1133 | #define log_unit_full_errno(unit, level, error, ...) \ |
1134 | ({ \ | |
1135 | int _error = (error); \ | |
1136 | ASSERT_NON_ZERO(_error); \ | |
1137 | log_unit_full_errno_zerook(unit, level, _error, ##__VA_ARGS__); \ | |
1138 | }) | |
1139 | ||
1140 | #define log_unit_full(unit, level, ...) (void) log_unit_full_errno_zerook(unit, level, 0, __VA_ARGS__) | |
8ed6f81b | 1141 | |
ac513634 | 1142 | #define log_unit_debug(unit, ...) log_unit_full(unit, LOG_DEBUG, __VA_ARGS__) |
8ed6f81b YW |
1143 | #define log_unit_info(unit, ...) log_unit_full(unit, LOG_INFO, __VA_ARGS__) |
1144 | #define log_unit_notice(unit, ...) log_unit_full(unit, LOG_NOTICE, __VA_ARGS__) | |
1145 | #define log_unit_warning(unit, ...) log_unit_full(unit, LOG_WARNING, __VA_ARGS__) | |
1146 | #define log_unit_error(unit, ...) log_unit_full(unit, LOG_ERR, __VA_ARGS__) | |
1147 | ||
1148 | #define log_unit_debug_errno(unit, error, ...) log_unit_full_errno(unit, LOG_DEBUG, error, __VA_ARGS__) | |
1149 | #define log_unit_info_errno(unit, error, ...) log_unit_full_errno(unit, LOG_INFO, error, __VA_ARGS__) | |
1150 | #define log_unit_notice_errno(unit, error, ...) log_unit_full_errno(unit, LOG_NOTICE, error, __VA_ARGS__) | |
1151 | #define log_unit_warning_errno(unit, error, ...) log_unit_full_errno(unit, LOG_WARNING, error, __VA_ARGS__) | |
1152 | #define log_unit_error_errno(unit, error, ...) log_unit_full_errno(unit, LOG_ERR, error, __VA_ARGS__) | |
f2341e0a | 1153 | |
556b6f4e DDM |
1154 | #if LOG_TRACE |
1155 | # define log_unit_trace(...) log_unit_debug(__VA_ARGS__) | |
1156 | # define log_unit_trace_errno(...) log_unit_debug_errno(__VA_ARGS__) | |
1157 | #else | |
1158 | # define log_unit_trace(...) do {} while (0) | |
1159 | # define log_unit_trace_errno(e, ...) (-ERRNO_VALUE(e)) | |
1160 | #endif | |
1161 | ||
c2503e35 RH |
1162 | #define log_unit_struct_errno(unit, level, error, ...) \ |
1163 | ({ \ | |
1164 | const Unit *_u = (unit); \ | |
1165 | const int _l = (level); \ | |
1092e82b LB |
1166 | bool _do_log = unit_log_level_test(_u, _l); \ |
1167 | const ExecContext *_c = _do_log && _u ? \ | |
1168 | unit_get_exec_context(_u) : NULL; \ | |
1169 | LOG_CONTEXT_PUSH_IOV(_c ? _c->log_extra_fields : NULL, \ | |
1170 | _c ? _c->n_log_extra_fields : 0); \ | |
1171 | _do_log ? \ | |
c2503e35 RH |
1172 | log_struct_errno(_l, error, __VA_ARGS__, LOG_UNIT_ID(_u)) : \ |
1173 | -ERRNO_VALUE(error); \ | |
1174 | }) | |
1175 | ||
1176 | #define log_unit_struct(unit, level, ...) log_unit_struct_errno(unit, level, 0, __VA_ARGS__) | |
1177 | ||
1178 | #define log_unit_struct_iovec_errno(unit, level, error, iovec, n_iovec) \ | |
1179 | ({ \ | |
1092e82b | 1180 | const Unit *_u = (unit); \ |
c2503e35 | 1181 | const int _l = (level); \ |
1092e82b LB |
1182 | bool _do_log = unit_log_level_test(_u, _l); \ |
1183 | const ExecContext *_c = _do_log && _u ? \ | |
1184 | unit_get_exec_context(_u) : NULL; \ | |
1185 | LOG_CONTEXT_PUSH_IOV(_c ? _c->log_extra_fields : NULL, \ | |
1186 | _c ? _c->n_log_extra_fields : 0); \ | |
1187 | _do_log ? \ | |
c2503e35 RH |
1188 | log_struct_iovec_errno(_l, error, iovec, n_iovec) : \ |
1189 | -ERRNO_VALUE(error); \ | |
1190 | }) | |
1191 | ||
1192 | #define log_unit_struct_iovec(unit, level, iovec, n_iovec) log_unit_struct_iovec_errno(unit, level, 0, iovec, n_iovec) | |
1193 | ||
b9ce5cf9 ZJS |
1194 | /* Like LOG_MESSAGE(), but with the unit name prefixed. */ |
1195 | #define LOG_UNIT_MESSAGE(unit, fmt, ...) LOG_MESSAGE("%s: " fmt, (unit)->id, ##__VA_ARGS__) | |
f2341e0a | 1196 | #define LOG_UNIT_ID(unit) (unit)->manager->unit_log_format_string, (unit)->id |
f1c50bec | 1197 | #define LOG_UNIT_INVOCATION_ID(unit) (unit)->manager->invocation_log_format_string, (unit)->invocation_id_string |
5afe510c LP |
1198 | |
1199 | const char* collect_mode_to_string(CollectMode m) _const_; | |
1200 | CollectMode collect_mode_from_string(const char *s) _pure_; | |
15ed3c3a LP |
1201 | |
1202 | typedef struct UnitForEachDependencyData { | |
1203 | /* Stores state for the FOREACH macro below for iterating through all deps that have any of the | |
1204 | * specified dependency atom bits set */ | |
1205 | UnitDependencyAtom match_atom; | |
1206 | Hashmap *by_type, *by_unit; | |
1207 | void *current_type; | |
1208 | Iterator by_type_iterator, by_unit_iterator; | |
1209 | Unit **current_unit; | |
1210 | } UnitForEachDependencyData; | |
1211 | ||
1212 | /* Iterates through all dependencies that have a specific atom in the dependency type set. This tries to be | |
1213 | * smart: if the atom is unique, we'll directly go to right entry. Otherwise we'll iterate through the | |
1214 | * per-dependency type hashmap and match all dep that have the right atom set. */ | |
1215 | #define _UNIT_FOREACH_DEPENDENCY(other, u, ma, data) \ | |
1216 | for (UnitForEachDependencyData data = { \ | |
1217 | .match_atom = (ma), \ | |
1218 | .by_type = (u)->dependencies, \ | |
1219 | .by_type_iterator = ITERATOR_FIRST, \ | |
1220 | .current_unit = &(other), \ | |
1221 | }; \ | |
1222 | ({ \ | |
1223 | UnitDependency _dt = _UNIT_DEPENDENCY_INVALID; \ | |
1224 | bool _found; \ | |
1225 | \ | |
1226 | if (data.by_type && ITERATOR_IS_FIRST(data.by_type_iterator)) { \ | |
1227 | _dt = unit_dependency_from_unique_atom(data.match_atom); \ | |
1228 | if (_dt >= 0) { \ | |
1229 | data.by_unit = hashmap_get(data.by_type, UNIT_DEPENDENCY_TO_PTR(_dt)); \ | |
1230 | data.current_type = UNIT_DEPENDENCY_TO_PTR(_dt); \ | |
1231 | data.by_type = NULL; \ | |
1232 | _found = !!data.by_unit; \ | |
1233 | } \ | |
1234 | } \ | |
1235 | if (_dt < 0) \ | |
1236 | _found = hashmap_iterate(data.by_type, \ | |
1237 | &data.by_type_iterator, \ | |
1238 | (void**)&(data.by_unit), \ | |
1239 | (const void**) &(data.current_type)); \ | |
1240 | _found; \ | |
1241 | }); ) \ | |
1242 | if ((unit_dependency_to_atom(UNIT_DEPENDENCY_FROM_PTR(data.current_type)) & data.match_atom) != 0) \ | |
1243 | for (data.by_unit_iterator = ITERATOR_FIRST; \ | |
1244 | hashmap_iterate(data.by_unit, \ | |
1245 | &data.by_unit_iterator, \ | |
1246 | NULL, \ | |
1247 | (const void**) data.current_unit); ) | |
1248 | ||
1249 | /* Note: this matches deps that have *any* of the atoms specified in match_atom set */ | |
1250 | #define UNIT_FOREACH_DEPENDENCY(other, u, match_atom) \ | |
1251 | _UNIT_FOREACH_DEPENDENCY(other, u, match_atom, UNIQ_T(data, UNIQ)) | |
4b2af439 DDM |
1252 | |
1253 | #define _LOG_CONTEXT_PUSH_UNIT(unit, u, c) \ | |
1254 | const Unit *u = (unit); \ | |
1255 | const ExecContext *c = unit_get_exec_context(u); \ | |
1256 | LOG_CONTEXT_PUSH_KEY_VALUE(u->manager->unit_log_field, u->id); \ | |
1257 | LOG_CONTEXT_PUSH_KEY_VALUE(u->manager->invocation_log_field, u->invocation_id_string); \ | |
1258 | LOG_CONTEXT_PUSH_IOV(c ? c->log_extra_fields : NULL, c ? c->n_log_extra_fields : 0) | |
1259 | ||
1260 | #define LOG_CONTEXT_PUSH_UNIT(unit) \ | |
1261 | _LOG_CONTEXT_PUSH_UNIT(unit, UNIQ_T(u, UNIQ), UNIQ_T(c, UNIQ)) |