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-rw-r--r--src/login/logind-session.h181
1 files changed, 181 insertions, 0 deletions
diff --git a/src/login/logind-session.h b/src/login/logind-session.h
new file mode 100644
index 0000000..4c28607
--- /dev/null
+++ b/src/login/logind-session.h
@@ -0,0 +1,181 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+typedef struct Session Session;
+typedef enum KillWho KillWho;
+
+#include "list.h"
+#include "login-util.h"
+#include "logind-user.h"
+#include "string-util.h"
+
+typedef enum SessionState {
+ SESSION_OPENING, /* Session scope is being created */
+ SESSION_ONLINE, /* Logged in */
+ SESSION_ACTIVE, /* Logged in and in the fg */
+ SESSION_CLOSING, /* Logged out, but scope is still there */
+ _SESSION_STATE_MAX,
+ _SESSION_STATE_INVALID = -EINVAL,
+} SessionState;
+
+typedef enum SessionClass {
+ SESSION_USER,
+ SESSION_GREETER,
+ SESSION_LOCK_SCREEN,
+ SESSION_BACKGROUND,
+ _SESSION_CLASS_MAX,
+ _SESSION_CLASS_INVALID = -EINVAL,
+} SessionClass;
+
+typedef enum SessionType {
+ SESSION_UNSPECIFIED,
+ SESSION_TTY,
+ SESSION_X11,
+ SESSION_WAYLAND,
+ SESSION_MIR,
+ SESSION_WEB,
+ _SESSION_TYPE_MAX,
+ _SESSION_TYPE_INVALID = -EINVAL,
+} SessionType;
+
+#define SESSION_TYPE_IS_GRAPHICAL(type) IN_SET(type, SESSION_X11, SESSION_WAYLAND, SESSION_MIR)
+
+enum KillWho {
+ KILL_LEADER,
+ KILL_ALL,
+ _KILL_WHO_MAX,
+ _KILL_WHO_INVALID = -EINVAL,
+};
+
+typedef enum TTYValidity {
+ TTY_FROM_PAM,
+ TTY_FROM_UTMP,
+ TTY_UTMP_INCONSISTENT, /* may happen on ssh sessions with multiplexed TTYs */
+ _TTY_VALIDITY_MAX,
+ _TTY_VALIDITY_INVALID = -EINVAL,
+} TTYValidity;
+
+struct Session {
+ Manager *manager;
+
+ const char *id;
+ unsigned position;
+ SessionType type;
+ SessionType original_type;
+ SessionClass class;
+
+ char *state_file;
+
+ User *user;
+
+ dual_timestamp timestamp;
+
+ char *display;
+ char *tty;
+ TTYValidity tty_validity;
+
+ bool remote;
+ char *remote_user;
+ char *remote_host;
+ char *service;
+ char *desktop;
+
+ char *scope;
+ char *scope_job;
+
+ Seat *seat;
+ unsigned vtnr;
+ int vtfd;
+
+ pid_t leader;
+ uint32_t audit_id;
+
+ int fifo_fd;
+ char *fifo_path;
+
+ sd_event_source *fifo_event_source;
+
+ bool idle_hint;
+ dual_timestamp idle_hint_timestamp;
+
+ bool locked_hint;
+
+ bool in_gc_queue:1;
+ bool started:1;
+ bool stopping:1;
+
+ bool was_active:1;
+
+ sd_bus_message *create_message;
+
+ /* Set up when a client requested to release the session via the bus */
+ sd_event_source *timer_event_source;
+
+ char *controller;
+ Hashmap *devices;
+ sd_bus_track *track;
+
+ sd_event_source *stop_on_idle_event_source;
+
+ LIST_FIELDS(Session, sessions_by_user);
+ LIST_FIELDS(Session, sessions_by_seat);
+
+ LIST_FIELDS(Session, gc_queue);
+};
+
+int session_new(Session **ret, Manager *m, const char *id);
+Session* session_free(Session *s);
+
+DEFINE_TRIVIAL_CLEANUP_FUNC(Session *, session_free);
+
+void session_set_user(Session *s, User *u);
+int session_set_leader(Session *s, pid_t pid);
+bool session_may_gc(Session *s, bool drop_not_started);
+void session_add_to_gc_queue(Session *s);
+int session_activate(Session *s);
+bool session_is_active(Session *s);
+int session_get_idle_hint(Session *s, dual_timestamp *t);
+int session_set_idle_hint(Session *s, bool b);
+int session_get_locked_hint(Session *s);
+void session_set_locked_hint(Session *s, bool b);
+void session_set_type(Session *s, SessionType t);
+int session_set_display(Session *s, const char *display);
+int session_create_fifo(Session *s);
+int session_start(Session *s, sd_bus_message *properties, sd_bus_error *error);
+int session_stop(Session *s, bool force);
+int session_finalize(Session *s);
+int session_release(Session *s);
+int session_save(Session *s);
+int session_load(Session *s);
+int session_kill(Session *s, KillWho who, int signo);
+
+SessionState session_get_state(Session *u);
+
+const char* session_state_to_string(SessionState t) _const_;
+SessionState session_state_from_string(const char *s) _pure_;
+
+const char* session_type_to_string(SessionType t) _const_;
+SessionType session_type_from_string(const char *s) _pure_;
+
+const char* session_class_to_string(SessionClass t) _const_;
+SessionClass session_class_from_string(const char *s) _pure_;
+
+const char *kill_who_to_string(KillWho k) _const_;
+KillWho kill_who_from_string(const char *s) _pure_;
+
+const char* tty_validity_to_string(TTYValidity t) _const_;
+TTYValidity tty_validity_from_string(const char *s) _pure_;
+
+void session_leave_vt(Session *s);
+
+bool session_is_controller(Session *s, const char *sender);
+int session_set_controller(Session *s, const char *sender, bool force, bool prepare);
+void session_drop_controller(Session *s);
+
+static inline bool SESSION_IS_SELF(const char *name) {
+ return isempty(name) || streq(name, "self");
+}
+
+static inline bool SESSION_IS_AUTO(const char *name) {
+ return streq_ptr(name, "auto");
+}