diff options
Diffstat (limited to 'src/core/manager.h')
-rw-r--r-- | src/core/manager.h | 115 |
1 files changed, 81 insertions, 34 deletions
diff --git a/src/core/manager.h b/src/core/manager.h index 4ef869d14a..29fe14e10b 100644 --- a/src/core/manager.h +++ b/src/core/manager.h @@ -1,5 +1,3 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - #pragma once /*** @@ -21,13 +19,15 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>. ***/ +#include <libmount.h> #include <stdbool.h> #include <stdio.h> #include "sd-bus.h" #include "sd-event.h" -#include "fdset.h" + #include "cgroup-util.h" +#include "fdset.h" #include "hashmap.h" #include "list.h" #include "ratelimit.h" @@ -62,17 +62,25 @@ typedef enum ManagerExitCode { _MANAGER_EXIT_CODE_INVALID = -1 } ManagerExitCode; +typedef enum CADBurstAction { + CAD_BURST_ACTION_IGNORE, + CAD_BURST_ACTION_REBOOT, + CAD_BURST_ACTION_POWEROFF, + _CAD_BURST_ACTION_MAX, + _CAD_BURST_ACTION_INVALID = -1 +} CADBurstAction; + typedef enum StatusType { STATUS_TYPE_EPHEMERAL, STATUS_TYPE_NORMAL, STATUS_TYPE_EMERGENCY, } StatusType; +#include "execute.h" #include "job.h" #include "path-lookup.h" -#include "execute.h" -#include "unit-name.h" #include "show-status.h" +#include "unit-name.h" struct Manager { /* Note that the set of units we know of is allowed to be @@ -81,6 +89,7 @@ struct Manager { /* Active jobs and units */ Hashmap *units; /* name string => Unit object n:1 */ + Hashmap *units_by_invocation_id; Hashmap *jobs; /* job id => Job object 1:1 */ /* To make it easy to iterate through the units of a specific @@ -132,6 +141,9 @@ struct Manager { int notify_fd; sd_event_source *notify_event_source; + int cgroups_agent_fd; + sd_event_source *cgroups_agent_event_source; + int signal_fd; sd_event_source *signal_event_source; @@ -140,8 +152,10 @@ struct Manager { sd_event_source *jobs_in_progress_event_source; - unsigned n_snapshots; + int user_lookup_fds[2]; + sd_event_source *user_lookup_event_source; + UnitFileScope unit_file_scope; LookupPaths lookup_paths; Set *unit_path_cache; @@ -164,10 +178,6 @@ struct Manager { dual_timestamp units_load_start_timestamp; dual_timestamp units_load_finish_timestamp; - char *generator_unit_path; - char *generator_unit_path_early; - char *generator_unit_path_late; - struct udev* udev; /* Data specific to the device subsystem */ @@ -176,10 +186,8 @@ struct Manager { Hashmap *devices_by_sysfs; /* Data specific to the mount subsystem */ - FILE *proc_self_mountinfo; + struct libmnt_monitor *mount_monitor; sd_event_source *mount_event_source; - int utab_inotify_fd; - sd_event_source *mount_utab_event_source; /* Data specific to the swap filesystem */ FILE *proc_swaps; @@ -215,28 +223,36 @@ struct Manager { /* Data specific to the cgroup subsystem */ Hashmap *cgroup_unit; - CGroupControllerMask cgroup_supported; + CGroupMask cgroup_supported; char *cgroup_root; - int gc_marker; - unsigned n_in_gc_queue; + /* Notifications from cgroups, when the unified hierarchy is + * used is done via inotify. */ + int cgroup_inotify_fd; + sd_event_source *cgroup_inotify_event_source; + Hashmap *cgroup_inotify_wd_unit; /* Make sure the user cannot accidentally unmount our cgroup * file system */ int pin_cgroupfs_fd; + int gc_marker; + unsigned n_in_gc_queue; + /* Flags */ - ManagerRunningAs running_as; ManagerExitCode exit_code:5; bool dispatching_load_queue:1; bool dispatching_dbus_queue:1; bool taint_usr:1; - bool first_boot:1; - bool test_run:1; + /* If non-zero, exit with the following value when the systemd + * process terminate. Useful for containers: systemd-nspawn could get + * the return value. */ + uint8_t return_value; + ShowStatus show_status; bool confirm_spawn; bool no_console_output; @@ -250,8 +266,11 @@ struct Manager { bool default_cpu_accounting; bool default_memory_accounting; + bool default_io_accounting; bool default_blockio_accounting; + bool default_tasks_accounting; + uint64_t default_tasks_max; usec_t default_timer_accuracy_usec; struct rlimit *rlimit[_RLIMIT_MAX]; @@ -284,38 +303,52 @@ struct Manager { * value where Unit objects are contained. */ Hashmap *units_requiring_mounts_for; - /* Reference to the kdbus bus control fd */ - int kdbus_fd; - /* Used for processing polkit authorization responses */ Hashmap *polkit_registry; - /* When the user hits C-A-D more than 7 times per 2s, reboot immediately... */ + /* Dynamic users/groups, indexed by their name */ + Hashmap *dynamic_users; + + /* Keep track of all UIDs and GIDs any of our services currently use. This is useful for the RemoveIPC= logic. */ + Hashmap *uid_refs; + Hashmap *gid_refs; + + /* When the user hits C-A-D more than 7 times per 2s, do something immediately... */ RateLimit ctrl_alt_del_ratelimit; + CADBurstAction cad_burst_action; const char *unit_log_field; const char *unit_log_format_string; + + const char *invocation_log_field; + const char *invocation_log_format_string; + + int first_boot; /* tri-state */ }; -int manager_new(ManagerRunningAs running_as, bool test_run, Manager **m); +#define MANAGER_IS_SYSTEM(m) ((m)->unit_file_scope == UNIT_FILE_SYSTEM) +#define MANAGER_IS_USER(m) ((m)->unit_file_scope != UNIT_FILE_SYSTEM) + +#define MANAGER_IS_RELOADING(m) ((m)->n_reloading > 0) + +int manager_new(UnitFileScope scope, bool test_run, Manager **m); Manager* manager_free(Manager *m); -int manager_enumerate(Manager *m); +void manager_enumerate(Manager *m); int manager_startup(Manager *m, FILE *serialization, FDSet *fds); Job *manager_get_job(Manager *m, uint32_t id); Unit *manager_get_unit(Manager *m, const char *name); -int manager_get_unit_by_path(Manager *m, const char *path, const char *suffix, Unit **_found); - int manager_get_job_from_dbus_path(Manager *m, const char *s, Job **_j); int manager_load_unit_prepare(Manager *m, const char *name, const char *path, sd_bus_error *e, Unit **_ret); int manager_load_unit(Manager *m, const char *name, const char *path, sd_bus_error *e, Unit **_ret); int manager_load_unit_from_dbus_path(Manager *m, const char *s, sd_bus_error *e, Unit **_u); -int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool force, sd_bus_error *e, Job **_ret); -int manager_add_job_by_name(Manager *m, JobType type, const char *name, JobMode mode, bool force, sd_bus_error *e, Job **_ret); +int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, sd_bus_error *e, Job **_ret); +int manager_add_job_by_name(Manager *m, JobType type, const char *name, JobMode mode, sd_bus_error *e, Job **_ret); +int manager_add_job_by_name_and_warn(Manager *m, JobType type, const char *name, JobMode mode, Job **ret); void manager_dump_units(Manager *s, FILE *f, const char *prefix); void manager_dump_jobs(Manager *s, FILE *f, const char *prefix); @@ -329,8 +362,6 @@ int manager_set_default_rlimits(Manager *m, struct rlimit **default_rlimit); int manager_loop(Manager *m); -void manager_dispatch_bus_name_owner_changed(Manager *m, const char *name, const char* old_owner, const char *new_owner); - int manager_open_serialization(Manager *m, FILE **_f); int manager_serialize(Manager *m, FILE *f, FDSet *fds, bool switching_root); @@ -338,8 +369,6 @@ int manager_deserialize(Manager *m, FILE *f, FDSet *fds); int manager_reload(Manager *m); -bool manager_is_reloading_or_reexecuting(Manager *m) _pure_; - void manager_reset_failed(Manager *m); void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success); @@ -363,7 +392,25 @@ const char *manager_get_runtime_prefix(Manager *m); ManagerState manager_state(Manager *m); -void manager_update_failed_units(Manager *m, Unit *u, bool failed); +int manager_update_failed_units(Manager *m, Unit *u, bool failed); + +void manager_unref_uid(Manager *m, uid_t uid, bool destroy_now); +int manager_ref_uid(Manager *m, uid_t uid, bool clean_ipc); + +void manager_unref_gid(Manager *m, gid_t gid, bool destroy_now); +int manager_ref_gid(Manager *m, gid_t gid, bool destroy_now); + +void manager_vacuum_uid_refs(Manager *m); +void manager_vacuum_gid_refs(Manager *m); + +void manager_serialize_uid_refs(Manager *m, FILE *f); +void manager_deserialize_uid_refs_one(Manager *m, const char *value); + +void manager_serialize_gid_refs(Manager *m, FILE *f); +void manager_deserialize_gid_refs_one(Manager *m, const char *value); const char *manager_state_to_string(ManagerState m) _const_; ManagerState manager_state_from_string(const char *s) _pure_; + +const char *cad_burst_action_to_string(CADBurstAction a) _const_; +CADBurstAction cad_burst_action_from_string(const char *s) _pure_; |