src/login/logind.h

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 #pragma once
   4
   5 /***
   6   This file is part of systemd.
   7
   8   Copyright 2011 Lennart Poettering
   9
  10   systemd is free software; you can redistribute it and/or modify it
  11   under the terms of the GNU Lesser General Public License as published by
  12   the Free Software Foundation; either version 2.1 of the License, or
  13   (at your option) any later version.
  14
  15   systemd is distributed in the hope that it will be useful, but
  16   WITHOUT ANY WARRANTY; without even the implied warranty of
  17   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  18   Lesser General Public License for more details.
  19
  20   You should have received a copy of the GNU Lesser General Public License
  21   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  22 ***/
  23
  24 #include <stdbool.h>
  25
  26 #include "libudev.h"
  27 #include "sd-bus.h"
  28 #include "sd-event.h"
  29
  30 #include "hashmap.h"
  31 #include "list.h"
  32 #include "set.h"
  33
  34 typedef struct Manager Manager;
  35
  36 #include "logind-action.h"
  37 #include "logind-button.h"
  38 #include "logind-device.h"
  39 #include "logind-inhibit.h"
  40
  41 struct Manager {
  42         sd_event *event;
  43         sd_bus *bus;
  44
  45         Hashmap *devices;
  46         Hashmap *seats;
  47         Hashmap *sessions;
  48         Hashmap *users;
  49         Hashmap *inhibitors;
  50         Hashmap *buttons;
  51
  52         LIST_HEAD(Seat, seat_gc_queue);
  53         LIST_HEAD(Session, session_gc_queue);
  54         LIST_HEAD(User, user_gc_queue);
  55
  56         struct udev *udev;
  57         struct udev_monitor *udev_seat_monitor, *udev_device_monitor, *udev_vcsa_monitor, *udev_button_monitor;
  58
  59         sd_event_source *console_active_event_source;
  60         sd_event_source *udev_seat_event_source;
  61         sd_event_source *udev_device_event_source;
  62         sd_event_source *udev_vcsa_event_source;
  63         sd_event_source *udev_button_event_source;
  64
  65         int console_active_fd;
  66
  67         unsigned n_autovts;
  68
  69         unsigned reserve_vt;
  70         int reserve_vt_fd;
  71
  72         Seat *seat0;
  73
  74         char **kill_only_users, **kill_exclude_users;
  75         bool kill_user_processes;
  76
  77         unsigned long session_counter;
  78         unsigned long inhibit_counter;
  79
  80         Hashmap *session_units;
  81         Hashmap *user_units;
  82
  83         usec_t inhibit_delay_max;
  84
  85         /* If an action is currently being executed or is delayed,
  86          * this is != 0 and encodes what is being done */
  87         InhibitWhat action_what;
  88
  89         /* If a shutdown/suspend was delayed due to a inhibitor this
  90            contains the unit name we are supposed to start after the
  91            delay is over */
  92         const char *action_unit;
  93
  94         /* If a shutdown/suspend is currently executed, then this is
  95          * the job of it */
  96         char *action_job;
  97         sd_event_source *inhibit_timeout_source;
  98
  99         char *scheduled_shutdown_type;
 100         usec_t scheduled_shutdown_timeout;
 101         sd_event_source *scheduled_shutdown_timeout_source;
 102         uid_t scheduled_shutdown_uid;
 103         char *scheduled_shutdown_tty;
 104         sd_event_source *nologin_timeout_source;
 105         bool unlink_nologin;
 106
 107         char *wall_message;
 108         unsigned enable_wall_messages;
 109         sd_event_source *wall_message_timeout_source;
 110
 111         bool shutdown_dry_run;
 112
 113         sd_event_source *idle_action_event_source;
 114         usec_t idle_action_usec;
 115         usec_t idle_action_not_before_usec;
 116         HandleAction idle_action;
 117
 118         HandleAction handle_power_key;
 119         HandleAction handle_suspend_key;
 120         HandleAction handle_hibernate_key;
 121         HandleAction handle_lid_switch;
 122         HandleAction handle_lid_switch_docked;
 123
 124         bool power_key_ignore_inhibited;
 125         bool suspend_key_ignore_inhibited;
 126         bool hibernate_key_ignore_inhibited;
 127         bool lid_switch_ignore_inhibited;
 128
 129         bool remove_ipc;
 130
 131         Hashmap *polkit_registry;
 132
 133         usec_t holdoff_timeout_usec;
 134         sd_event_source *lid_switch_ignore_event_source;
 135
 136         size_t runtime_dir_size;
 137         uint64_t user_tasks_max;
 138 };
 139
 140 int manager_add_device(Manager *m, const char *sysfs, bool master, Device **_device);
 141 int manager_add_button(Manager *m, const char *name, Button **_button);
 142 int manager_add_seat(Manager *m, const char *id, Seat **_seat);
 143 int manager_add_session(Manager *m, const char *id, Session **_session);
 144 int manager_add_user(Manager *m, uid_t uid, gid_t gid, const char *name, User **_user);
 145 int manager_add_user_by_name(Manager *m, const char *name, User **_user);
 146 int manager_add_user_by_uid(Manager *m, uid_t uid, User **_user);
 147 int manager_add_inhibitor(Manager *m, const char* id, Inhibitor **_inhibitor);
 148
 149 int manager_process_seat_device(Manager *m, struct udev_device *d);
 150 int manager_process_button_device(Manager *m, struct udev_device *d);
 151
 152 int manager_spawn_autovt(Manager *m, unsigned int vtnr);
 153
 154 bool manager_shall_kill(Manager *m, const char *user);
 155
 156 int manager_get_idle_hint(Manager *m, dual_timestamp *t);
 157
 158 int manager_get_user_by_pid(Manager *m, pid_t pid, User **user);
 159 int manager_get_session_by_pid(Manager *m, pid_t pid, Session **session);
 160
 161 bool manager_is_docked_or_external_displays(Manager *m);
 162
 163 extern const sd_bus_vtable manager_vtable[];
 164
 165 int match_job_removed(sd_bus_message *message, void *userdata, sd_bus_error *error);
 166 int match_unit_removed(sd_bus_message *message, void *userdata, sd_bus_error *error);
 167 int match_properties_changed(sd_bus_message *message, void *userdata, sd_bus_error *error);
 168 int match_reloading(sd_bus_message *message, void *userdata, sd_bus_error *error);
 169 int match_name_owner_changed(sd_bus_message *message, void *userdata, sd_bus_error *error);
 170
 171 int bus_manager_shutdown_or_sleep_now_or_later(Manager *m, const char *unit_name, InhibitWhat w, sd_bus_error *error);
 172
 173 int manager_send_changed(Manager *manager, const char *property, ...) _sentinel_;
 174
 175 int manager_start_slice(Manager *manager, const char *slice, const char *description, const char *after, const char *after2, uint64_t tasks_max, sd_bus_error *error, char **job);
 176 int manager_start_scope(Manager *manager, const char *scope, pid_t pid, const char *slice, const char *description, const char *after, const char *after2, uint64_t tasks_max, sd_bus_error *error, char **job);
 177 int manager_start_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job);
 178 int manager_stop_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job);
 179 int manager_abandon_scope(Manager *manager, const char *scope, sd_bus_error *error);
 180 int manager_kill_unit(Manager *manager, const char *unit, KillWho who, int signo, sd_bus_error *error);
 181 int manager_unit_is_active(Manager *manager, const char *unit);
 182 int manager_job_is_active(Manager *manager, const char *path);
 183
 184 /* gperf lookup function */
 185 const struct ConfigPerfItem* logind_gperf_lookup(const char *key, unsigned length);
 186
 187 int manager_set_lid_switch_ignore(Manager *m, usec_t until);
 188
 189 int config_parse_tmpfs_size(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
 190
 191 int manager_get_session_from_creds(Manager *m, sd_bus_message *message, const char *name, sd_bus_error *error, Session **ret);
 192 int manager_get_user_from_creds(Manager *m, sd_bus_message *message, uid_t uid, sd_bus_error *error, User **ret);
 193 int manager_get_seat_from_creds(Manager *m, sd_bus_message *message, const char *name, sd_bus_error *error, Seat **ret);
 194
 195 int manager_setup_wall_message_timer(Manager *m);
 196 bool logind_wall_tty_filter(const char *tty, void *userdata);
 197
 198 int manager_dispatch_delayed(Manager *manager, bool timeout);