+++ /dev/null
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2011 Lennart Poettering
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <errno.h>
-#include <string.h>
-
-#include "logind.h"
-#include "logind-seat.h"
-#include "dbus-common.h"
-#include "util.h"
-
-#define BUS_SEAT_INTERFACE \
- " <interface name=\"org.freedesktop.login1.Seat\">\n" \
- " <method name=\"Terminate\"/>\n" \
- " <method name=\"ActivateSession\">\n" \
- " <arg name=\"id\" type=\"s\"/>\n" \
- " </method>\n" \
- " <property name=\"Id\" type=\"s\" access=\"read\"/>\n" \
- " <property name=\"ActiveSession\" type=\"so\" access=\"read\"/>\n" \
- " <property name=\"CanMultiSession\" type=\"b\" access=\"read\"/>\n" \
- " <property name=\"Sessions\" type=\"a(so)\" access=\"read\"/>\n" \
- " <property name=\"IdleHint\" type=\"b\" access=\"read\"/>\n" \
- " <property name=\"IdleSinceHint\" type=\"t\" access=\"read\"/>\n" \
- " <property name=\"IdleSinceHintMonotonic\" type=\"t\" access=\"read\"/>\n" \
- " </interface>\n" \
-
-#define INTROSPECTION \
- DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
- "<node>\n" \
- BUS_SEAT_INTERFACE \
- BUS_PROPERTIES_INTERFACE \
- BUS_PEER_INTERFACE \
- BUS_INTROSPECTABLE_INTERFACE \
- "</node>\n"
-
-#define INTERFACES_LIST \
- BUS_GENERIC_INTERFACES_LIST \
- "org.freedesktop.login1.Seat\0"
-
-static int bus_seat_append_active(DBusMessageIter *i, const char *property, void *data) {
- DBusMessageIter sub;
- Seat *s = data;
- const char *id, *path;
- char *p = NULL;
-
- assert(i);
- assert(property);
- assert(s);
-
- if (!dbus_message_iter_open_container(i, DBUS_TYPE_STRUCT, NULL, &sub))
- return -ENOMEM;
-
- if (s->active) {
- id = s->active->id;
- path = p = session_bus_path(s->active);
-
- if (!p)
- return -ENOMEM;
- } else {
- id = "";
- path = "/";
- }
-
- if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &id) ||
- !dbus_message_iter_append_basic(&sub, DBUS_TYPE_OBJECT_PATH, &path)) {
- free(p);
- return -ENOMEM;
- }
-
- free(p);
-
- if (!dbus_message_iter_close_container(i, &sub))
- return -ENOMEM;
-
- return 0;
-}
-
-static int bus_seat_append_sessions(DBusMessageIter *i, const char *property, void *data) {
- DBusMessageIter sub, sub2;
- Seat *s = data;
- Session *session;
-
- assert(i);
- assert(property);
- assert(s);
-
- if (!dbus_message_iter_open_container(i, DBUS_TYPE_ARRAY, "(so)", &sub))
- return -ENOMEM;
-
- LIST_FOREACH(sessions_by_seat, session, s->sessions) {
- char *p;
-
- if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
- return -ENOMEM;
-
- p = session_bus_path(session);
- if (!p)
- return -ENOMEM;
-
- if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &session->id) ||
- !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &p)) {
- free(p);
- return -ENOMEM;
- }
-
- free(p);
-
- if (!dbus_message_iter_close_container(&sub, &sub2))
- return -ENOMEM;
- }
-
- if (!dbus_message_iter_close_container(i, &sub))
- return -ENOMEM;
-
- return 0;
-}
-
-static int bus_seat_append_multi_session(DBusMessageIter *i, const char *property, void *data) {
- Seat *s = data;
- dbus_bool_t b;
-
- assert(i);
- assert(property);
- assert(s);
-
- b = seat_is_vtconsole(s);
-
- if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b))
- return -ENOMEM;
-
- return 0;
-}
-
-static int bus_seat_append_idle_hint(DBusMessageIter *i, const char *property, void *data) {
- Seat *s = data;
- dbus_bool_t b;
-
- assert(i);
- assert(property);
- assert(s);
-
- b = seat_get_idle_hint(s, NULL) > 0;
- if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b))
- return -ENOMEM;
-
- return 0;
-}
-
-static int bus_seat_append_idle_hint_since(DBusMessageIter *i, const char *property, void *data) {
- Seat *s = data;
- dual_timestamp t;
- uint64_t k;
-
- assert(i);
- assert(property);
- assert(s);
-
- seat_get_idle_hint(s, &t);
- k = streq(property, "IdleSinceHint") ? t.realtime : t.monotonic;
-
- if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT64, &k))
- return -ENOMEM;
-
- return 0;
-}
-
-static int get_seat_for_path(Manager *m, const char *path, Seat **_s) {
- Seat *s;
- char *id;
-
- assert(m);
- assert(path);
- assert(_s);
-
- if (!startswith(path, "/org/freedesktop/login1/seat/"))
- return -EINVAL;
-
- id = bus_path_unescape(path + 29);
- if (!id)
- return -ENOMEM;
-
- s = hashmap_get(m->seats, id);
- free(id);
-
- if (!s)
- return -ENOENT;
-
- *_s = s;
- return 0;
-}
-
-static DBusHandlerResult seat_message_dispatch(
- Seat *s,
- DBusConnection *connection,
- DBusMessage *message) {
-
- const BusProperty properties[] = {
- { "org.freedesktop.login1.Seat", "Id", bus_property_append_string, "s", s->id },
- { "org.freedesktop.login1.Seat", "ActiveSession", bus_seat_append_active, "(so)", s },
- { "org.freedesktop.login1.Seat", "CanMultiSession", bus_seat_append_multi_session, "b", s },
- { "org.freedesktop.login1.Seat", "Sessions", bus_seat_append_sessions, "a(so)", s },
- { "org.freedesktop.login1.Seat", "IdleHint", bus_seat_append_idle_hint, "b", s },
- { "org.freedesktop.login1.Seat", "IdleSinceHint", bus_seat_append_idle_hint_since, "t", s },
- { "org.freedesktop.login1.Seat", "IdleSinceHintMonotonic", bus_seat_append_idle_hint_since, "t", s },
- { NULL, NULL, NULL, NULL, NULL }
- };
-
- DBusError error;
- DBusMessage *reply = NULL;
- int r;
-
- assert(s);
- assert(connection);
- assert(message);
-
- dbus_error_init(&error);
-
- if (dbus_message_is_method_call(message, "org.freedesktop.login1.Seat", "Terminate")) {
-
- r = seat_stop_sessions(s);
- if (r < 0)
- return bus_send_error_reply(connection, message, NULL, r);
-
- reply = dbus_message_new_method_return(message);
- if (!reply)
- goto oom;
-
- } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Seat", "ActivateSession")) {
- const char *name;
- Session *session;
-
- if (!dbus_message_get_args(
- message,
- &error,
- DBUS_TYPE_STRING, &name,
- DBUS_TYPE_INVALID))
- return bus_send_error_reply(connection, message, &error, -EINVAL);
-
- session = hashmap_get(s->manager->sessions, name);
- if (!session || session->seat != s)
- return bus_send_error_reply(connection, message, &error, -ENOENT);
-
- r = session_activate(session);
- if (r < 0)
- return bus_send_error_reply(connection, message, NULL, r);
-
- reply = dbus_message_new_method_return(message);
- if (!reply)
- goto oom;
- } else
- return bus_default_message_handler(connection, message, INTROSPECTION, INTERFACES_LIST, properties);
-
- if (reply) {
- if (!dbus_connection_send(connection, reply, NULL))
- goto oom;
-
- dbus_message_unref(reply);
- }
-
- return DBUS_HANDLER_RESULT_HANDLED;
-
-oom:
- if (reply)
- dbus_message_unref(reply);
-
- dbus_error_free(&error);
-
- return DBUS_HANDLER_RESULT_NEED_MEMORY;
-}
-
-static DBusHandlerResult seat_message_handler(
- DBusConnection *connection,
- DBusMessage *message,
- void *userdata) {
-
- Manager *m = userdata;
- Seat *s;
- int r;
-
- r = get_seat_for_path(m, dbus_message_get_path(message), &s);
- if (r < 0) {
-
- if (r == -ENOMEM)
- return DBUS_HANDLER_RESULT_NEED_MEMORY;
-
- if (r == -ENOENT) {
- DBusError e;
-
- dbus_error_init(&e);
- dbus_set_error_const(&e, DBUS_ERROR_UNKNOWN_OBJECT, "Unknown seat");
- return bus_send_error_reply(connection, message, &e, r);
- }
-
- return bus_send_error_reply(connection, message, NULL, r);
- }
-
- return seat_message_dispatch(s, connection, message);
-}
-
-const DBusObjectPathVTable bus_seat_vtable = {
- .message_function = seat_message_handler
-};
-
-char *seat_bus_path(Seat *s) {
- char *t, *r;
-
- assert(s);
-
- t = bus_path_escape(s->id);
- if (!t)
- return NULL;
-
- r = strappend("/org/freedesktop/login1/seat/", t);
- free(t);
-
- return r;
-}
-
-int seat_send_signal(Seat *s, bool new_seat) {
- DBusMessage *m;
- int r = -ENOMEM;
- char *p = NULL;
-
- assert(s);
-
- m = dbus_message_new_signal("/org/freedesktop/login1",
- "org.freedesktop.login1.Manager",
- new_seat ? "SeatNew" : "SeatRemoved");
-
- if (!m)
- return -ENOMEM;
-
- p = seat_bus_path(s);
- if (!p)
- goto finish;
-
- if (!dbus_message_append_args(
- m,
- DBUS_TYPE_STRING, &s->id,
- DBUS_TYPE_OBJECT_PATH, &p,
- DBUS_TYPE_INVALID))
- goto finish;
-
- if (!dbus_connection_send(s->manager->bus, m, NULL))
- goto finish;
-
- r = 0;
-
-finish:
- dbus_message_unref(m);
- free(p);
-
- return r;
-}
-
-int seat_send_changed(Seat *s, const char *properties) {
- DBusMessage *m;
- int r = -ENOMEM;
- char *p = NULL;
-
- assert(s);
-
- if (!s->started)
- return 0;
-
- p = seat_bus_path(s);
- if (!p)
- return -ENOMEM;
-
- m = bus_properties_changed_new(p, "org.freedesktop.login1.Seat", properties);
- if (!m)
- goto finish;
-
- if (!dbus_connection_send(s->manager->bus, m, NULL))
- goto finish;
-
- r = 0;
-
-finish:
- if (m)
- dbus_message_unref(m);
- free(p);
-
- return r;
-}
~ianmdlvl / elogind.git / blobdiff