9444b1f20e
- This changes all logind cgroup objects to use slice objects rather than fixed croup locations. - logind can now collect minimal information about running VMs/containers. As fixed cgroup locations can no longer be used we need an entity that keeps track of machine cgroups in whatever slice they might be located. Since logind already keeps track of users, sessions and seats this is a trivial addition. - nspawn will now register with logind and pass various bits of metadata along. A new option "--slice=" has been added to place the container in a specific slice. - loginctl gained commands to list, introspect and terminate machines. - user.slice and machine.slice will now be pulled in by logind.service, since only logind.service requires this slice.
199 lines
6.2 KiB
C
199 lines
6.2 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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#pragma once
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/***
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This file is part of systemd.
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Copyright 2011 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <stdbool.h>
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#include <inttypes.h>
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#include <dbus/dbus.h>
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#include <libudev.h>
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#include "util.h"
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#include "audit.h"
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#include "list.h"
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#include "hashmap.h"
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#include "cgroup-util.h"
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typedef struct Manager Manager;
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#include "logind-device.h"
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#include "logind-seat.h"
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#include "logind-session.h"
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#include "logind-user.h"
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#include "logind-inhibit.h"
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#include "logind-button.h"
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#include "logind-action.h"
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#include "logind-machine.h"
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struct Manager {
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DBusConnection *bus;
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Hashmap *devices;
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Hashmap *seats;
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Hashmap *sessions;
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Hashmap *users;
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Hashmap *inhibitors;
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Hashmap *buttons;
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Hashmap *machines;
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LIST_HEAD(Seat, seat_gc_queue);
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LIST_HEAD(Session, session_gc_queue);
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LIST_HEAD(User, user_gc_queue);
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LIST_HEAD(Machine, machine_gc_queue);
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struct udev *udev;
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struct udev_monitor *udev_seat_monitor, *udev_vcsa_monitor, *udev_button_monitor;
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int udev_seat_fd;
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int udev_vcsa_fd;
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int udev_button_fd;
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int console_active_fd;
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int bus_fd;
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int epoll_fd;
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unsigned n_autovts;
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unsigned reserve_vt;
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int reserve_vt_fd;
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Seat *vtconsole;
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char *cgroup_root;
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char **controllers, **reset_controllers;
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char **kill_only_users, **kill_exclude_users;
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bool kill_user_processes;
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unsigned long session_counter;
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unsigned long inhibit_counter;
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Hashmap *session_cgroups;
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Hashmap *user_cgroups;
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Hashmap *machine_cgroups;
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Hashmap *session_fds;
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Hashmap *inhibitor_fds;
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Hashmap *button_fds;
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usec_t inhibit_delay_max;
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/* If an action is currently being executed or is delayed,
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* this is != 0 and encodes what is being done */
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InhibitWhat action_what;
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/* If a shutdown/suspend was delayed due to a inhibitor this
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contains the unit name we are supposed to start after the
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delay is over */
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const char *action_unit;
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/* If a shutdown/suspend is currently executed, then this is
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* the job of it */
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char *action_job;
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usec_t action_timestamp;
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int idle_action_fd; /* the timer_fd */
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usec_t idle_action_usec;
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usec_t idle_action_not_before_usec;
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HandleAction idle_action;
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HandleAction handle_power_key;
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HandleAction handle_suspend_key;
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HandleAction handle_hibernate_key;
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HandleAction handle_lid_switch;
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bool power_key_ignore_inhibited;
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bool suspend_key_ignore_inhibited;
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bool hibernate_key_ignore_inhibited;
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bool lid_switch_ignore_inhibited;
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};
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enum {
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FD_SEAT_UDEV,
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FD_VCSA_UDEV,
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FD_BUTTON_UDEV,
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FD_CONSOLE,
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FD_BUS,
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FD_IDLE_ACTION,
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FD_OTHER_BASE
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};
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Manager *manager_new(void);
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void manager_free(Manager *m);
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int manager_add_device(Manager *m, const char *sysfs, Device **_device);
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int manager_add_button(Manager *m, const char *name, Button **_button);
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int manager_add_seat(Manager *m, const char *id, Seat **_seat);
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int manager_add_session(Manager *m, const char *id, Session **_session);
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int manager_add_user(Manager *m, uid_t uid, gid_t gid, const char *name, User **_user);
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int manager_add_user_by_name(Manager *m, const char *name, User **_user);
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int manager_add_user_by_uid(Manager *m, uid_t uid, User **_user);
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int manager_add_inhibitor(Manager *m, const char* id, Inhibitor **_inhibitor);
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int manager_add_machine(Manager *m, const char *name, Machine **_machine);
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int manager_process_seat_device(Manager *m, struct udev_device *d);
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int manager_process_button_device(Manager *m, struct udev_device *d);
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int manager_dispatch_seat_udev(Manager *m);
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int manager_dispatch_vcsa_udev(Manager *m);
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int manager_dispatch_button_udev(Manager *m);
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int manager_dispatch_console(Manager *m);
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int manager_dispatch_idle_action(Manager *m);
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int manager_enumerate_devices(Manager *m);
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int manager_enumerate_buttons(Manager *m);
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int manager_enumerate_seats(Manager *m);
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int manager_enumerate_sessions(Manager *m);
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int manager_enumerate_users(Manager *m);
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int manager_enumerate_inhibitors(Manager *m);
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int manager_enumerate_machines(Manager *m);
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int manager_startup(Manager *m);
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int manager_run(Manager *m);
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int manager_spawn_autovt(Manager *m, int vtnr);
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void manager_cgroup_notify_empty(Manager *m, const char *cgroup);
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void manager_gc(Manager *m, bool drop_not_started);
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int manager_get_idle_hint(Manager *m, dual_timestamp *t);
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int manager_get_user_by_cgroup(Manager *m, const char *cgroup, User **user);
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int manager_get_user_by_pid(Manager *m, pid_t pid, User **user);
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int manager_get_session_by_cgroup(Manager *m, const char *cgroup, Session **session);
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int manager_get_session_by_pid(Manager *m, pid_t pid, Session **session);
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int manager_get_machine_by_cgroup(Manager *m, const char *cgroup, Machine **machine);
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int manager_get_machine_by_pid(Manager *m, pid_t pid, Machine **machine);
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extern const DBusObjectPathVTable bus_manager_vtable;
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DBusHandlerResult bus_message_filter(DBusConnection *c, DBusMessage *message, void *userdata);
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int bus_manager_shutdown_or_sleep_now_or_later(Manager *m, const char *unit_name, InhibitWhat w, DBusError *error);
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int manager_send_changed(Manager *manager, const char *properties);
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int manager_dispatch_delayed(Manager *manager);
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/* gperf lookup function */
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const struct ConfigPerfItem* logind_gperf_lookup(const char *key, unsigned length);
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