src/login/logind.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 #pragma once
   3
   4 /***
   5   This file is part of systemd.
   6
   7   Copyright 2011 Lennart Poettering
   8
   9   systemd is free software; you can redistribute it and/or modify it
  10   under the terms of the GNU Lesser General Public License as published by
  11   the Free Software Foundation; either version 2.1 of the License, or
  12   (at your option) any later version.
  13
  14   systemd is distributed in the hope that it will be useful, but
  15   WITHOUT ANY WARRANTY; without even the implied warranty of
  16   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17   Lesser General Public License for more details.
  18
  19   You should have received a copy of the GNU Lesser General Public License
  20   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  21 ***/
  22
  23 #include <stdbool.h>
  24
  25 #include "libudev.h"
  26 #include "sd-bus.h"
  27 #include "sd-event.h"
  28
  29 #include "hashmap.h"
  30 #include "list.h"
  31 #include "set.h"
  32
  33 typedef struct Manager Manager;
  34
  35 #include "logind-action.h"
  36 #include "logind-button.h"
  37 #include "logind-device.h"
  38 #include "logind-inhibit.h"
  39
  40 struct Manager {
  41         sd_event *event;
  42         sd_bus *bus;
  43
  44         Hashmap *devices;
  45         Hashmap *seats;
  46         Hashmap *sessions;
  47         Hashmap *users;
  48         Hashmap *inhibitors;
  49         Hashmap *buttons;
  50
  51         LIST_HEAD(Seat, seat_gc_queue);
  52         LIST_HEAD(Session, session_gc_queue);
  53         LIST_HEAD(User, user_gc_queue);
  54
  55         struct udev *udev;
  56         struct udev_monitor *udev_seat_monitor, *udev_device_monitor, *udev_vcsa_monitor, *udev_button_monitor;
  57
  58         sd_event_source *console_active_event_source;
  59         sd_event_source *udev_seat_event_source;
  60         sd_event_source *udev_device_event_source;
  61         sd_event_source *udev_vcsa_event_source;
  62         sd_event_source *udev_button_event_source;
  63
  64         int console_active_fd;
  65
  66         unsigned n_autovts;
  67
  68         unsigned reserve_vt;
  69         int reserve_vt_fd;
  70
  71         Seat *seat0;
  72
  73         char **kill_only_users, **kill_exclude_users;
  74         bool kill_user_processes;
  75
  76         unsigned long session_counter;
  77         unsigned long inhibit_counter;
  78
  79         Hashmap *session_units;
  80         Hashmap *user_units;
  81
  82         usec_t inhibit_delay_max;
  83
  84         /* If an action is currently being executed or is delayed,
  85          * this is != 0 and encodes what is being done */
  86         InhibitWhat action_what;
  87
  88         /* If a shutdown/suspend was delayed due to a inhibitor this
  89            contains the unit name we are supposed to start after the
  90            delay is over */
  91         const char *action_unit;
  92
  93         /* If a shutdown/suspend is currently executed, then this is
  94          * the job of it */
  95         char *action_job;
  96         sd_event_source *inhibit_timeout_source;
  97
  98         char *scheduled_shutdown_type;
  99         usec_t scheduled_shutdown_timeout;
 100         sd_event_source *scheduled_shutdown_timeout_source;
 101         uid_t scheduled_shutdown_uid;
 102         char *scheduled_shutdown_tty;
 103         sd_event_source *nologin_timeout_source;
 104         bool unlink_nologin;
 105
 106         char *wall_message;
 107         unsigned enable_wall_messages;
 108         sd_event_source *wall_message_timeout_source;
 109
 110         bool shutdown_dry_run;
 111
 112         sd_event_source *idle_action_event_source;
 113         usec_t idle_action_usec;
 114         usec_t idle_action_not_before_usec;
 115         HandleAction idle_action;
 116
 117         HandleAction handle_power_key;
 118         HandleAction handle_suspend_key;
 119         HandleAction handle_hibernate_key;
 120         HandleAction handle_lid_switch;
 121         HandleAction handle_lid_switch_ep;
 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         uint64_t sessions_max;
 139         uint64_t inhibitors_max;
 140 };
 141
 142 int manager_add_device(Manager *m, const char *sysfs, bool master, Device **_device);
 143 int manager_add_button(Manager *m, const char *name, Button **_button);
 144 int manager_add_seat(Manager *m, const char *id, Seat **_seat);
 145 int manager_add_session(Manager *m, const char *id, Session **_session);
 146 int manager_add_user(Manager *m, uid_t uid, gid_t gid, const char *name, User **_user);
 147 int manager_add_user_by_name(Manager *m, const char *name, User **_user);
 148 int manager_add_user_by_uid(Manager *m, uid_t uid, User **_user);
 149 int manager_add_inhibitor(Manager *m, const char* id, Inhibitor **_inhibitor);
 150
 151 int manager_process_seat_device(Manager *m, struct udev_device *d);
 152 int manager_process_button_device(Manager *m, struct udev_device *d);
 153
 154 int manager_spawn_autovt(Manager *m, unsigned int vtnr);
 155
 156 bool manager_shall_kill(Manager *m, const char *user);
 157
 158 int manager_get_idle_hint(Manager *m, dual_timestamp *t);
 159
 160 int manager_get_user_by_pid(Manager *m, pid_t pid, User **user);
 161 int manager_get_session_by_pid(Manager *m, pid_t pid, Session **session);
 162
 163 bool manager_is_docked_or_external_displays(Manager *m);
 164 bool manager_is_on_external_power(void);
 165 bool manager_all_buttons_ignored(Manager *m);
 166
 167 extern const sd_bus_vtable manager_vtable[];
 168
 169 int match_job_removed(sd_bus_message *message, void *userdata, sd_bus_error *error);
 170 int match_unit_removed(sd_bus_message *message, void *userdata, sd_bus_error *error);
 171 int match_properties_changed(sd_bus_message *message, void *userdata, sd_bus_error *error);
 172 int match_reloading(sd_bus_message *message, void *userdata, sd_bus_error *error);
 173 int match_name_owner_changed(sd_bus_message *message, void *userdata, sd_bus_error *error);
 174
 175 int bus_manager_shutdown_or_sleep_now_or_later(Manager *m, const char *unit_name, InhibitWhat w, sd_bus_error *error);
 176
 177 int manager_send_changed(Manager *manager, const char *property, ...) _sentinel_;
 178
 179 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);
 180 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);
 181 int manager_start_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job);
 182 int manager_stop_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job);
 183 int manager_abandon_scope(Manager *manager, const char *scope, sd_bus_error *error);
 184 int manager_kill_unit(Manager *manager, const char *unit, KillWho who, int signo, sd_bus_error *error);
 185 int manager_unit_is_active(Manager *manager, const char *unit);
 186 int manager_job_is_active(Manager *manager, const char *path);
 187
 188 /* gperf lookup function */
 189 const struct ConfigPerfItem* logind_gperf_lookup(const char *key, GPERF_LEN_TYPE length);
 190
 191 int manager_set_lid_switch_ignore(Manager *m, usec_t until);
 192
 193 int config_parse_n_autovts(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);
 194 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);
 195 int config_parse_user_tasks_max(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);
 196
 197 int manager_get_session_from_creds(Manager *m, sd_bus_message *message, const char *name, sd_bus_error *error, Session **ret);
 198 int manager_get_user_from_creds(Manager *m, sd_bus_message *message, uid_t uid, sd_bus_error *error, User **ret);
 199 int manager_get_seat_from_creds(Manager *m, sd_bus_message *message, const char *name, sd_bus_error *error, Seat **ret);
 200
 201 int manager_setup_wall_message_timer(Manager *m);
 202 bool logind_wall_tty_filter(const char *tty, void *userdata);
 203
 204 int manager_dispatch_delayed(Manager *manager, bool timeout);