183e073842
We really should put limits on all resources we manage, hence add one to the number of concurrent sessions, too. This was previously unbounded, hence set a relatively high limit of 8K by default. Note that most PAM setups will actually invoke pam_systemd prefixed with "-", so that the return code of pam_systemd is ignored, and the login attempt succeeds anyway. On systems like this the session will be created but is not tracked by systemd.
198 lines
7.4 KiB
C
198 lines
7.4 KiB
C
#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 "libudev.h"
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#include "sd-bus.h"
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#include "sd-event.h"
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#include "hashmap.h"
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#include "list.h"
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#include "set.h"
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typedef struct Manager Manager;
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#include "logind-action.h"
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#include "logind-button.h"
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#include "logind-device.h"
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#include "logind-inhibit.h"
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struct Manager {
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sd_event *event;
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sd_bus *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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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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struct udev *udev;
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struct udev_monitor *udev_seat_monitor, *udev_device_monitor, *udev_vcsa_monitor, *udev_button_monitor;
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sd_event_source *console_active_event_source;
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sd_event_source *udev_seat_event_source;
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sd_event_source *udev_device_event_source;
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sd_event_source *udev_vcsa_event_source;
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sd_event_source *udev_button_event_source;
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int console_active_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 *seat0;
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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_units;
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Hashmap *user_units;
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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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sd_event_source *inhibit_timeout_source;
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char *scheduled_shutdown_type;
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usec_t scheduled_shutdown_timeout;
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sd_event_source *scheduled_shutdown_timeout_source;
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uid_t scheduled_shutdown_uid;
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char *scheduled_shutdown_tty;
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sd_event_source *nologin_timeout_source;
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bool unlink_nologin;
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char *wall_message;
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unsigned enable_wall_messages;
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sd_event_source *wall_message_timeout_source;
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bool shutdown_dry_run;
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sd_event_source *idle_action_event_source;
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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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HandleAction handle_lid_switch_docked;
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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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bool remove_ipc;
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Hashmap *polkit_registry;
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usec_t holdoff_timeout_usec;
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sd_event_source *lid_switch_ignore_event_source;
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size_t runtime_dir_size;
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uint64_t user_tasks_max;
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uint64_t sessions_max;
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};
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int manager_add_device(Manager *m, const char *sysfs, bool master, 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_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_spawn_autovt(Manager *m, unsigned int vtnr);
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bool manager_shall_kill(Manager *m, const char *user);
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int manager_get_idle_hint(Manager *m, dual_timestamp *t);
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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_pid(Manager *m, pid_t pid, Session **session);
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bool manager_is_docked_or_external_displays(Manager *m);
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extern const sd_bus_vtable manager_vtable[];
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int match_job_removed(sd_bus_message *message, void *userdata, sd_bus_error *error);
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int match_unit_removed(sd_bus_message *message, void *userdata, sd_bus_error *error);
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int match_properties_changed(sd_bus_message *message, void *userdata, sd_bus_error *error);
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int match_reloading(sd_bus_message *message, void *userdata, sd_bus_error *error);
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int match_name_owner_changed(sd_bus_message *message, void *userdata, sd_bus_error *error);
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int bus_manager_shutdown_or_sleep_now_or_later(Manager *m, const char *unit_name, InhibitWhat w, sd_bus_error *error);
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int manager_send_changed(Manager *manager, const char *property, ...) _sentinel_;
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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);
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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);
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int manager_start_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job);
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int manager_stop_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job);
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int manager_abandon_scope(Manager *manager, const char *scope, sd_bus_error *error);
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int manager_kill_unit(Manager *manager, const char *unit, KillWho who, int signo, sd_bus_error *error);
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int manager_unit_is_active(Manager *manager, const char *unit);
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int manager_job_is_active(Manager *manager, const char *path);
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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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int manager_set_lid_switch_ignore(Manager *m, usec_t until);
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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);
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int manager_get_session_from_creds(Manager *m, sd_bus_message *message, const char *name, sd_bus_error *error, Session **ret);
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int manager_get_user_from_creds(Manager *m, sd_bus_message *message, uid_t uid, sd_bus_error *error, User **ret);
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int manager_get_seat_from_creds(Manager *m, sd_bus_message *message, const char *name, sd_bus_error *error, Seat **ret);
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int manager_setup_wall_message_timer(Manager *m);
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bool logind_wall_tty_filter(const char *tty, void *userdata);
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int manager_dispatch_delayed(Manager *manager, bool timeout);
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