1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2011 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
28 #include "dbus-common.h"
33 #define BUS_MANAGER_INTERFACE \
34 " <interface name=\"org.freedesktop.login1.Manager\">\n" \
35 " <method name=\"GetSession\">\n" \
36 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
37 " <arg name=\"session\" type=\"o\" direction=\"out\"/>\n" \
39 " <method name=\"GetUser\">\n" \
40 " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
41 " <arg name=\"user\" type=\"o\" direction=\"out\"/>\n" \
43 " <method name=\"GetSeat\">\n" \
44 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
45 " <arg name=\"seat\" type=\"o\" direction=\"out\"/>\n" \
47 " <method name=\"ListSessions\">\n" \
48 " <arg name=\"sessions\" type=\"a(susso)\" direction=\"out\"/>\n" \
50 " <method name=\"ListUsers\">\n" \
51 " <arg name=\"users\" type=\"a(uso)\" direction=\"out\"/>\n" \
53 " <method name=\"ListSeats\">\n" \
54 " <arg name=\"seats\" type=\"a(so)\" direction=\"out\"/>\n" \
56 " <method name=\"CreateSession\">\n" \
57 " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
58 " <arg name=\"leader\" type=\"u\" direction=\"in\"/>\n" \
59 " <arg name=\"sevice\" type=\"s\" direction=\"in\"/>\n" \
60 " <arg name=\"type\" type=\"s\" direction=\"in\"/>\n" \
61 " <arg name=\"seat\" type=\"s\" direction=\"in\"/>\n" \
62 " <arg name=\"vtnr\" type=\"u\" direction=\"in\"/>\n" \
63 " <arg name=\"tty\" type=\"s\" direction=\"in\"/>\n" \
64 " <arg name=\"display\" type=\"s\" direction=\"in\"/>\n" \
65 " <arg name=\"remote\" type=\"b\" direction=\"in\"/>\n" \
66 " <arg name=\"remote_user\" type=\"s\" direction=\"in\"/>\n" \
67 " <arg name=\"remote_host\" type=\"s\" direction=\"in\"/>\n" \
68 " <arg name=\"controllers\" type=\"as\" direction=\"in\"/>\n" \
69 " <arg name=\"reset_controllers\" type=\"as\" direction=\"in\"/>\n" \
70 " <arg name=\"kill_processes\" type=\"b\" direction=\"in\"/>\n" \
71 " <arg name=\"id\" type=\"s\" direction=\"out\"/>\n" \
72 " <arg name=\"path\" type=\"o\" direction=\"out\"/>\n" \
73 " <arg name=\"runtime_path\" type=\"o\" direction=\"out\"/>\n" \
74 " <arg name=\"fd\" type=\"h\" direction=\"out\"/>\n" \
75 " <arg name=\"seat\" type=\"s\" direction=\"out\"/>\n" \
76 " <arg name=\"vtnr\" type=\"u\" direction=\"out\"/>\n" \
78 " <method name=\"ActivateSession\">\n" \
79 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
81 " <method name=\"LockSession\">\n" \
82 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
84 " <method name=\"UnlockSession\">\n" \
85 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
87 " <method name=\"KillSession\">\n" \
88 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
89 " <arg name=\"who\" type=\"s\"/>\n" \
90 " <arg name=\"signal\" type=\"s\"/>\n" \
92 " <method name=\"KillUser\">\n" \
93 " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
94 " <arg name=\"signal\" type=\"s\"/>\n" \
96 " <method name=\"TerminateSession\">\n" \
97 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
99 " <method name=\"TerminateUser\">\n" \
100 " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
102 " <method name=\"TerminateSeat\">\n" \
103 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
105 " <method name=\"SetUserLinger\">\n" \
106 " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
107 " <arg name=\"b\" type=\"b\" direction=\"in\"/>\n" \
108 " <arg name=\"interactive\" type=\"b\" direction=\"in\"/>\n" \
110 " <method name=\"AttachDevice\">\n" \
111 " <arg name=\"seat\" type=\"s\" direction=\"in\"/>\n" \
112 " <arg name=\"sysfs\" type=\"s\" direction=\"in\"/>\n" \
113 " <arg name=\"interactive\" type=\"b\" direction=\"in\"/>\n" \
115 " <method name=\"FlushDevices\">\n" \
116 " <arg name=\"interactive\" type=\"b\" direction=\"in\"/>\n" \
118 " <method name=\"PowerOff\">\n" \
119 " <arg name=\"interactive\" type=\"b\" direction=\"in\"/>\n" \
121 " <method name=\"Reboot\">\n" \
122 " <arg name=\"interactive\" type=\"b\" direction=\"in\"/>\n" \
124 " <signal name=\"SessionNew\">\n" \
125 " <arg name=\"id\" type=\"s\"/>\n" \
126 " <arg name=\"path\" type=\"o\"/>\n" \
128 " <signal name=\"SessionRemoved\">\n" \
129 " <arg name=\"id\" type=\"s\"/>\n" \
130 " <arg name=\"path\" type=\"o\"/>\n" \
132 " <signal name=\"UserNew\">\n" \
133 " <arg name=\"uid\" type=\"u\"/>\n" \
134 " <arg name=\"path\" type=\"o\"/>\n" \
136 " <signal name=\"UserRemoved\">\n" \
137 " <arg name=\"uid\" type=\"u\"/>\n" \
138 " <arg name=\"path\" type=\"o\"/>\n" \
140 " <signal name=\"SeatNew\">\n" \
141 " <arg name=\"id\" type=\"s\"/>\n" \
142 " <arg name=\"path\" type=\"o\"/>\n" \
144 " <signal name=\"SeatRemoved\">\n" \
145 " <arg name=\"id\" type=\"s\"/>\n" \
146 " <arg name=\"path\" type=\"o\"/>\n" \
148 " <property name=\"ControlGroupHierarchy\" type=\"s\" access=\"read\"/>\n" \
149 " <property name=\"Controllers\" type=\"as\" access=\"read\"/>\n" \
150 " <property name=\"ResetControllers\" type=\"as\" access=\"read\"/>\n" \
151 " <property name=\"NAutoVTs\" type=\"u\" access=\"read\"/>\n" \
152 " <property name=\"KillOnlyUsers\" type=\"as\" access=\"read\"/>\n" \
153 " <property name=\"KillExcludeUsers\" type=\"as\" access=\"read\"/>\n" \
154 " <property name=\"KillUserProcesses\" type=\"b\" access=\"read\"/>\n" \
155 " <property name=\"IdleHint\" type=\"b\" access=\"read\"/>\n" \
156 " <property name=\"IdleSinceHint\" type=\"t\" access=\"read\"/>\n" \
157 " <property name=\"IdleSinceHintMonotonic\" type=\"t\" access=\"read\"/>\n" \
160 #define INTROSPECTION_BEGIN \
161 DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
163 BUS_MANAGER_INTERFACE \
164 BUS_PROPERTIES_INTERFACE \
166 BUS_INTROSPECTABLE_INTERFACE
168 #define INTROSPECTION_END \
171 #define INTERFACES_LIST \
172 BUS_GENERIC_INTERFACES_LIST \
173 "org.freedesktop.login1.Manager\0"
175 static int bus_manager_append_idle_hint(DBusMessageIter
*i
, const char *property
, void *data
) {
183 b
= manager_get_idle_hint(m
, NULL
) > 0;
184 if (!dbus_message_iter_append_basic(i
, DBUS_TYPE_BOOLEAN
, &b
))
190 static int bus_manager_append_idle_hint_since(DBusMessageIter
*i
, const char *property
, void *data
) {
199 manager_get_idle_hint(m
, &t
);
200 u
= streq(property
, "IdleSinceHint") ? t
.realtime
: t
.monotonic
;
202 if (!dbus_message_iter_append_basic(i
, DBUS_TYPE_UINT64
, &u
))
208 static int bus_manager_create_session(Manager
*m
, DBusMessage
*message
, DBusMessage
**_reply
) {
209 Session
*session
= NULL
;
211 const char *type
, *seat
, *tty
, *display
, *remote_user
, *remote_host
, *service
;
212 uint32_t uid
, leader
, audit_id
= 0;
213 dbus_bool_t remote
, kill_processes
;
214 char **controllers
= NULL
, **reset_controllers
= NULL
;
217 DBusMessageIter iter
;
222 DBusMessage
*reply
= NULL
;
229 if (!dbus_message_iter_init(message
, &iter
) ||
230 dbus_message_iter_get_arg_type(&iter
) != DBUS_TYPE_UINT32
)
233 dbus_message_iter_get_basic(&iter
, &uid
);
235 if (!dbus_message_iter_next(&iter
) ||
236 dbus_message_iter_get_arg_type(&iter
) != DBUS_TYPE_UINT32
)
239 dbus_message_iter_get_basic(&iter
, &leader
);
242 !dbus_message_iter_next(&iter
) ||
243 dbus_message_iter_get_arg_type(&iter
) != DBUS_TYPE_STRING
)
246 dbus_message_iter_get_basic(&iter
, &service
);
248 if (!dbus_message_iter_next(&iter
) ||
249 dbus_message_iter_get_arg_type(&iter
) != DBUS_TYPE_STRING
)
252 dbus_message_iter_get_basic(&iter
, &type
);
253 t
= session_type_from_string(type
);
256 !dbus_message_iter_next(&iter
) ||
257 dbus_message_iter_get_arg_type(&iter
) != DBUS_TYPE_STRING
)
260 dbus_message_iter_get_basic(&iter
, &seat
);
265 s
= hashmap_get(m
->seats
, seat
);
270 if (!dbus_message_iter_next(&iter
) ||
271 dbus_message_iter_get_arg_type(&iter
) != DBUS_TYPE_UINT32
)
274 dbus_message_iter_get_basic(&iter
, &vtnr
);
276 if (!dbus_message_iter_next(&iter
) ||
277 dbus_message_iter_get_arg_type(&iter
) != DBUS_TYPE_STRING
)
280 dbus_message_iter_get_basic(&iter
, &tty
);
282 if (tty_is_vc(tty
)) {
287 else if (s
!= m
->vtconsole
)
290 v
= vtnr_from_tty(tty
);
293 return v
< 0 ? v
: -EINVAL
;
297 else if (vtnr
!= (uint32_t) v
)
300 } else if (!isempty(tty
) && s
&& seat_is_vtconsole(s
))
304 if (seat_can_multi_session(s
)) {
305 if (vtnr
<= 0 || vtnr
> 63)
313 if (!dbus_message_iter_next(&iter
) ||
314 dbus_message_iter_get_arg_type(&iter
) != DBUS_TYPE_STRING
)
317 dbus_message_iter_get_basic(&iter
, &display
);
319 if (!dbus_message_iter_next(&iter
) ||
320 dbus_message_iter_get_arg_type(&iter
) != DBUS_TYPE_BOOLEAN
)
323 dbus_message_iter_get_basic(&iter
, &remote
);
325 if (!dbus_message_iter_next(&iter
) ||
326 dbus_message_iter_get_arg_type(&iter
) != DBUS_TYPE_STRING
)
329 dbus_message_iter_get_basic(&iter
, &remote_user
);
331 if (!dbus_message_iter_next(&iter
) ||
332 dbus_message_iter_get_arg_type(&iter
) != DBUS_TYPE_STRING
)
335 dbus_message_iter_get_basic(&iter
, &remote_host
);
337 if (!dbus_message_iter_next(&iter
) ||
338 dbus_message_iter_get_arg_type(&iter
) != DBUS_TYPE_ARRAY
||
339 dbus_message_iter_get_element_type(&iter
) != DBUS_TYPE_STRING
)
342 r
= bus_parse_strv_iter(&iter
, &controllers
);
346 if (strv_contains(controllers
, "systemd") ||
347 !dbus_message_iter_next(&iter
) ||
348 dbus_message_iter_get_arg_type(&iter
) != DBUS_TYPE_ARRAY
||
349 dbus_message_iter_get_element_type(&iter
) != DBUS_TYPE_STRING
) {
354 r
= bus_parse_strv_iter(&iter
, &reset_controllers
);
358 if (strv_contains(reset_controllers
, "systemd") ||
359 !dbus_message_iter_next(&iter
) ||
360 dbus_message_iter_get_arg_type(&iter
) != DBUS_TYPE_BOOLEAN
) {
365 dbus_message_iter_get_basic(&iter
, &kill_processes
);
367 r
= manager_add_user_by_uid(m
, uid
, &user
);
371 audit_session_from_pid(leader
, &audit_id
);
374 asprintf(&id
, "%lu", (unsigned long) audit_id
);
381 session
= hashmap_get(m
->sessions
, id
);
386 fifo_fd
= session_create_fifo(session
);
392 /* Session already exists, client is probably
393 * something like "su" which changes uid but
394 * is still the same audit session */
396 reply
= dbus_message_new_method_return(message
);
402 p
= session_bus_path(session
);
408 seat
= session
->seat
? session
->seat
->id
: "";
409 vtnr
= session
->vtnr
;
410 b
= dbus_message_append_args(
412 DBUS_TYPE_STRING
, &session
->id
,
413 DBUS_TYPE_OBJECT_PATH
, &p
,
414 DBUS_TYPE_STRING
, &session
->user
->runtime_path
,
415 DBUS_TYPE_UNIX_FD
, &fifo_fd
,
416 DBUS_TYPE_STRING
, &seat
,
417 DBUS_TYPE_UINT32
, &vtnr
,
426 close_nointr_nofail(fifo_fd
);
429 strv_free(controllers
);
430 strv_free(reset_controllers
);
438 asprintf(&id
, "c%lu", ++m
->session_counter
);
445 } while (hashmap_get(m
->sessions
, id
));
448 r
= manager_add_session(m
, user
, id
, &session
);
453 session
->leader
= leader
;
454 session
->audit_id
= audit_id
;
456 session
->remote
= remote
;
457 session
->controllers
= controllers
;
458 session
->reset_controllers
= reset_controllers
;
459 session
->kill_processes
= kill_processes
;
460 session
->vtnr
= vtnr
;
462 controllers
= reset_controllers
= NULL
;
465 session
->tty
= strdup(tty
);
472 if (!isempty(display
)) {
473 session
->display
= strdup(display
);
474 if (!session
->display
) {
480 if (!isempty(remote_user
)) {
481 session
->remote_user
= strdup(remote_user
);
482 if (!session
->remote_user
) {
488 if (!isempty(remote_host
)) {
489 session
->remote_host
= strdup(remote_host
);
490 if (!session
->remote_host
) {
496 if (!isempty(service
)) {
497 session
->service
= strdup(service
);
498 if (!session
->service
) {
504 fifo_fd
= session_create_fifo(session
);
511 r
= seat_attach_session(s
, session
);
516 r
= session_start(session
);
520 reply
= dbus_message_new_method_return(message
);
526 p
= session_bus_path(session
);
532 seat
= s
? s
->id
: "";
533 b
= dbus_message_append_args(
535 DBUS_TYPE_STRING
, &session
->id
,
536 DBUS_TYPE_OBJECT_PATH
, &p
,
537 DBUS_TYPE_STRING
, &session
->user
->runtime_path
,
538 DBUS_TYPE_UNIX_FD
, &fifo_fd
,
539 DBUS_TYPE_STRING
, &seat
,
540 DBUS_TYPE_UINT32
, &vtnr
,
549 close_nointr_nofail(fifo_fd
);
555 strv_free(controllers
);
556 strv_free(reset_controllers
);
559 session_add_to_gc_queue(session
);
562 user_add_to_gc_queue(user
);
565 close_nointr_nofail(fifo_fd
);
568 dbus_message_unref(reply
);
573 static int trigger_device(Manager
*m
, struct udev_device
*d
) {
574 struct udev_enumerate
*e
;
575 struct udev_list_entry
*first
, *item
;
580 e
= udev_enumerate_new(m
->udev
);
587 if (udev_enumerate_add_match_parent(e
, d
) < 0) {
593 if (udev_enumerate_scan_devices(e
) < 0) {
598 first
= udev_enumerate_get_list_entry(e
);
599 udev_list_entry_foreach(item
, first
) {
603 p
= udev_list_entry_get_name(item
);
605 t
= strappend(p
, "/uevent");
611 write_one_line_file(t
, "change");
619 udev_enumerate_unref(e
);
624 static int attach_device(Manager
*m
, const char *seat
, const char *sysfs
) {
625 struct udev_device
*d
;
626 char *rule
= NULL
, *file
= NULL
;
627 const char *id_for_seat
;
634 d
= udev_device_new_from_syspath(m
->udev
, sysfs
);
638 if (!udev_device_has_tag(d
, "seat")) {
643 id_for_seat
= udev_device_get_property_value(d
, "ID_FOR_SEAT");
649 if (asprintf(&file
, "/etc/udev/rules.d/72-seat-%s.rules", id_for_seat
) < 0) {
654 if (asprintf(&rule
, "TAG==\"seat\", ENV{ID_FOR_SEAT}==\"%s\", ENV{ID_SEAT}=\"%s\"", id_for_seat
, seat
) < 0) {
659 mkdir_p("/etc/udev/rules.d", 0755);
660 r
= write_one_line_file_atomic(file
, rule
);
664 r
= trigger_device(m
, d
);
671 udev_device_unref(d
);
676 static int flush_devices(Manager
*m
) {
681 d
= opendir("/etc/udev/rules.d");
684 log_warning("Failed to open /etc/udev/rules.d: %m");
688 while ((de
= readdir(d
))) {
690 if (!dirent_is_file(de
))
693 if (!startswith(de
->d_name
, "72-seat-"))
696 if (!endswith(de
->d_name
, ".rules"))
699 if (unlinkat(dirfd(d
), de
->d_name
, 0) < 0)
700 log_warning("Failed to unlink %s: %m", de
->d_name
);
706 return trigger_device(m
, NULL
);
709 static const BusProperty bus_login_manager_properties
[] = {
710 { "ControlGroupHierarchy", bus_property_append_string
, "s", offsetof(Manager
, cgroup_path
), true },
711 { "Controllers", bus_property_append_strv
, "as", offsetof(Manager
, controllers
), true },
712 { "ResetControllers", bus_property_append_strv
, "as", offsetof(Manager
, reset_controllers
), true },
713 { "NAutoVTs", bus_property_append_unsigned
, "u", offsetof(Manager
, n_autovts
) },
714 { "KillOnlyUsers", bus_property_append_strv
, "as", offsetof(Manager
, kill_only_users
), true },
715 { "KillExcludeUsers", bus_property_append_strv
, "as", offsetof(Manager
, kill_exclude_users
), true },
716 { "KillUserProcesses", bus_property_append_bool
, "b", offsetof(Manager
, kill_user_processes
) },
717 { "IdleHint", bus_manager_append_idle_hint
, "b", 0 },
718 { "IdleSinceHint", bus_manager_append_idle_hint_since
, "t", 0 },
719 { "IdleSinceHintMonotonic", bus_manager_append_idle_hint_since
, "t", 0 },
723 static DBusHandlerResult
manager_message_handler(
724 DBusConnection
*connection
,
725 DBusMessage
*message
,
728 Manager
*m
= userdata
;
731 DBusMessage
*reply
= NULL
;
738 dbus_error_init(&error
);
740 if (dbus_message_is_method_call(message
, "org.freedesktop.login1.Manager", "GetSession")) {
746 if (!dbus_message_get_args(
749 DBUS_TYPE_STRING
, &name
,
751 return bus_send_error_reply(connection
, message
, &error
, -EINVAL
);
753 session
= hashmap_get(m
->sessions
, name
);
755 return bus_send_error_reply(connection
, message
, &error
, -ENOENT
);
757 reply
= dbus_message_new_method_return(message
);
761 p
= session_bus_path(session
);
765 b
= dbus_message_append_args(
767 DBUS_TYPE_OBJECT_PATH
, &p
,
774 } else if (dbus_message_is_method_call(message
, "org.freedesktop.login1.Manager", "GetUser")) {
780 if (!dbus_message_get_args(
783 DBUS_TYPE_UINT32
, &uid
,
785 return bus_send_error_reply(connection
, message
, &error
, -EINVAL
);
787 user
= hashmap_get(m
->users
, ULONG_TO_PTR((unsigned long) uid
));
789 return bus_send_error_reply(connection
, message
, &error
, -ENOENT
);
791 reply
= dbus_message_new_method_return(message
);
795 p
= user_bus_path(user
);
799 b
= dbus_message_append_args(
801 DBUS_TYPE_OBJECT_PATH
, &p
,
808 } else if (dbus_message_is_method_call(message
, "org.freedesktop.login1.Manager", "GetSeat")) {
814 if (!dbus_message_get_args(
817 DBUS_TYPE_STRING
, &name
,
819 return bus_send_error_reply(connection
, message
, &error
, -EINVAL
);
821 seat
= hashmap_get(m
->seats
, name
);
823 return bus_send_error_reply(connection
, message
, &error
, -ENOENT
);
825 reply
= dbus_message_new_method_return(message
);
829 p
= seat_bus_path(seat
);
833 b
= dbus_message_append_args(
835 DBUS_TYPE_OBJECT_PATH
, &p
,
842 } else if (dbus_message_is_method_call(message
, "org.freedesktop.login1.Manager", "ListSessions")) {
846 DBusMessageIter iter
, sub
;
847 const char *empty
= "";
849 reply
= dbus_message_new_method_return(message
);
853 dbus_message_iter_init_append(reply
, &iter
);
855 if (!dbus_message_iter_open_container(&iter
, DBUS_TYPE_ARRAY
, "(susso)", &sub
))
858 HASHMAP_FOREACH(session
, m
->sessions
, i
) {
859 DBusMessageIter sub2
;
862 if (!dbus_message_iter_open_container(&sub
, DBUS_TYPE_STRUCT
, NULL
, &sub2
))
865 uid
= session
->user
->uid
;
867 p
= session_bus_path(session
);
871 if (!dbus_message_iter_append_basic(&sub2
, DBUS_TYPE_STRING
, &session
->id
) ||
872 !dbus_message_iter_append_basic(&sub2
, DBUS_TYPE_UINT32
, &uid
) ||
873 !dbus_message_iter_append_basic(&sub2
, DBUS_TYPE_STRING
, &session
->user
->name
) ||
874 !dbus_message_iter_append_basic(&sub2
, DBUS_TYPE_STRING
, session
->seat
? (const char**) &session
->seat
->id
: &empty
) ||
875 !dbus_message_iter_append_basic(&sub2
, DBUS_TYPE_OBJECT_PATH
, &p
)) {
882 if (!dbus_message_iter_close_container(&sub
, &sub2
))
886 if (!dbus_message_iter_close_container(&iter
, &sub
))
889 } else if (dbus_message_is_method_call(message
, "org.freedesktop.login1.Manager", "ListUsers")) {
893 DBusMessageIter iter
, sub
;
895 reply
= dbus_message_new_method_return(message
);
899 dbus_message_iter_init_append(reply
, &iter
);
901 if (!dbus_message_iter_open_container(&iter
, DBUS_TYPE_ARRAY
, "(uso)", &sub
))
904 HASHMAP_FOREACH(user
, m
->users
, i
) {
905 DBusMessageIter sub2
;
908 if (!dbus_message_iter_open_container(&sub
, DBUS_TYPE_STRUCT
, NULL
, &sub2
))
913 p
= user_bus_path(user
);
917 if (!dbus_message_iter_append_basic(&sub2
, DBUS_TYPE_UINT32
, &uid
) ||
918 !dbus_message_iter_append_basic(&sub2
, DBUS_TYPE_STRING
, &user
->name
) ||
919 !dbus_message_iter_append_basic(&sub2
, DBUS_TYPE_OBJECT_PATH
, &p
)) {
926 if (!dbus_message_iter_close_container(&sub
, &sub2
))
930 if (!dbus_message_iter_close_container(&iter
, &sub
))
933 } else if (dbus_message_is_method_call(message
, "org.freedesktop.login1.Manager", "ListSeats")) {
937 DBusMessageIter iter
, sub
;
939 reply
= dbus_message_new_method_return(message
);
943 dbus_message_iter_init_append(reply
, &iter
);
945 if (!dbus_message_iter_open_container(&iter
, DBUS_TYPE_ARRAY
, "(so)", &sub
))
948 HASHMAP_FOREACH(seat
, m
->seats
, i
) {
949 DBusMessageIter sub2
;
951 if (!dbus_message_iter_open_container(&sub
, DBUS_TYPE_STRUCT
, NULL
, &sub2
))
954 p
= seat_bus_path(seat
);
958 if (!dbus_message_iter_append_basic(&sub2
, DBUS_TYPE_STRING
, &seat
->id
) ||
959 !dbus_message_iter_append_basic(&sub2
, DBUS_TYPE_OBJECT_PATH
, &p
)) {
966 if (!dbus_message_iter_close_container(&sub
, &sub2
))
970 if (!dbus_message_iter_close_container(&iter
, &sub
))
973 } else if (dbus_message_is_method_call(message
, "org.freedesktop.login1.Manager", "CreateSession")) {
975 r
= bus_manager_create_session(m
, message
, &reply
);
977 /* Don't delay the work on OOM here, since it might be
978 * triggered by a low RLIMIT_NOFILE here (since we
979 * send a dupped fd to the client), and we'd rather
980 * see this fail quickly then be retried later */
983 return bus_send_error_reply(connection
, message
, &error
, r
);
985 } else if (dbus_message_is_method_call(message
, "org.freedesktop.login1.Manager", "ActivateSession")) {
989 if (!dbus_message_get_args(
992 DBUS_TYPE_STRING
, &name
,
994 return bus_send_error_reply(connection
, message
, &error
, -EINVAL
);
996 session
= hashmap_get(m
->sessions
, name
);
998 return bus_send_error_reply(connection
, message
, &error
, -ENOENT
);
1000 r
= session_activate(session
);
1002 return bus_send_error_reply(connection
, message
, NULL
, r
);
1004 reply
= dbus_message_new_method_return(message
);
1008 } else if (dbus_message_is_method_call(message
, "org.freedesktop.login1.Manager", "LockSession") ||
1009 dbus_message_is_method_call(message
, "org.freedesktop.login1.Manager", "UnlockSession")) {
1013 if (!dbus_message_get_args(
1016 DBUS_TYPE_STRING
, &name
,
1018 return bus_send_error_reply(connection
, message
, &error
, -EINVAL
);
1020 session
= hashmap_get(m
->sessions
, name
);
1022 return bus_send_error_reply(connection
, message
, &error
, -ENOENT
);
1024 if (session_send_lock(session
, streq(dbus_message_get_member(message
), "LockSession")) < 0)
1027 reply
= dbus_message_new_method_return(message
);
1031 } else if (dbus_message_is_method_call(message
, "org.freedesktop.login1.Manager", "KillSession")) {
1038 if (!dbus_message_get_args(
1041 DBUS_TYPE_STRING
, &name
,
1042 DBUS_TYPE_STRING
, &swho
,
1043 DBUS_TYPE_INT32
, &signo
,
1045 return bus_send_error_reply(connection
, message
, &error
, -EINVAL
);
1050 who
= kill_who_from_string(swho
);
1052 return bus_send_error_reply(connection
, message
, &error
, -EINVAL
);
1055 if (signo
<= 0 || signo
>= _NSIG
)
1056 return bus_send_error_reply(connection
, message
, &error
, -EINVAL
);
1058 session
= hashmap_get(m
->sessions
, name
);
1060 return bus_send_error_reply(connection
, message
, &error
, -ENOENT
);
1062 r
= session_kill(session
, who
, signo
);
1064 return bus_send_error_reply(connection
, message
, NULL
, r
);
1066 reply
= dbus_message_new_method_return(message
);
1070 } else if (dbus_message_is_method_call(message
, "org.freedesktop.login1.Manager", "KillUser")) {
1075 if (!dbus_message_get_args(
1078 DBUS_TYPE_UINT32
, &uid
,
1079 DBUS_TYPE_INT32
, &signo
,
1081 return bus_send_error_reply(connection
, message
, &error
, -EINVAL
);
1083 if (signo
<= 0 || signo
>= _NSIG
)
1084 return bus_send_error_reply(connection
, message
, &error
, -EINVAL
);
1086 user
= hashmap_get(m
->users
, ULONG_TO_PTR((unsigned long) uid
));
1088 return bus_send_error_reply(connection
, message
, &error
, -ENOENT
);
1090 r
= user_kill(user
, signo
);
1092 return bus_send_error_reply(connection
, message
, NULL
, r
);
1094 reply
= dbus_message_new_method_return(message
);
1098 } else if (dbus_message_is_method_call(message
, "org.freedesktop.login1.Manager", "TerminateSession")) {
1102 if (!dbus_message_get_args(
1105 DBUS_TYPE_STRING
, &name
,
1107 return bus_send_error_reply(connection
, message
, &error
, -EINVAL
);
1109 session
= hashmap_get(m
->sessions
, name
);
1111 return bus_send_error_reply(connection
, message
, &error
, -ENOENT
);
1113 r
= session_stop(session
);
1115 return bus_send_error_reply(connection
, message
, NULL
, r
);
1117 reply
= dbus_message_new_method_return(message
);
1121 } else if (dbus_message_is_method_call(message
, "org.freedesktop.login1.Manager", "TerminateUser")) {
1125 if (!dbus_message_get_args(
1128 DBUS_TYPE_UINT32
, &uid
,
1130 return bus_send_error_reply(connection
, message
, &error
, -EINVAL
);
1132 user
= hashmap_get(m
->users
, ULONG_TO_PTR((unsigned long) uid
));
1134 return bus_send_error_reply(connection
, message
, &error
, -ENOENT
);
1136 r
= user_stop(user
);
1138 return bus_send_error_reply(connection
, message
, NULL
, r
);
1140 reply
= dbus_message_new_method_return(message
);
1144 } else if (dbus_message_is_method_call(message
, "org.freedesktop.login1.Manager", "TerminateSeat")) {
1148 if (!dbus_message_get_args(
1151 DBUS_TYPE_STRING
, &name
,
1153 return bus_send_error_reply(connection
, message
, &error
, -EINVAL
);
1155 seat
= hashmap_get(m
->seats
, name
);
1157 return bus_send_error_reply(connection
, message
, &error
, -ENOENT
);
1159 r
= seat_stop_sessions(seat
);
1161 return bus_send_error_reply(connection
, message
, NULL
, r
);
1163 reply
= dbus_message_new_method_return(message
);
1167 } else if (dbus_message_is_method_call(message
, "org.freedesktop.login1.Manager", "SetUserLinger")) {
1170 dbus_bool_t b
, interactive
;
1173 if (!dbus_message_get_args(
1176 DBUS_TYPE_UINT32
, &uid
,
1177 DBUS_TYPE_BOOLEAN
, &b
,
1178 DBUS_TYPE_BOOLEAN
, &interactive
,
1180 return bus_send_error_reply(connection
, message
, &error
, -EINVAL
);
1185 return bus_send_error_reply(connection
, message
, NULL
, errno
? -errno
: -EINVAL
);
1187 r
= verify_polkit(connection
, message
, "org.freedesktop.login1.set-user-linger", interactive
, &error
);
1189 return bus_send_error_reply(connection
, message
, &error
, r
);
1191 r
= safe_mkdir("/var/lib/systemd/linger", 0755, 0, 0);
1193 return bus_send_error_reply(connection
, message
, &error
, r
);
1195 path
= strappend("/var/lib/systemd/linger/", pw
->pw_name
);
1206 return bus_send_error_reply(connection
, message
, &error
, r
);
1208 if (manager_add_user_by_uid(m
, uid
, &u
) >= 0)
1217 if (r
< 0 && errno
!= ENOENT
)
1218 return bus_send_error_reply(connection
, message
, &error
, -errno
);
1220 u
= hashmap_get(m
->users
, ULONG_TO_PTR((unsigned long) uid
));
1222 user_add_to_gc_queue(u
);
1225 reply
= dbus_message_new_method_return(message
);
1229 } else if (dbus_message_is_method_call(message
, "org.freedesktop.login1.Manager", "AttachDevice")) {
1230 const char *sysfs
, *seat
;
1231 dbus_bool_t interactive
;
1233 if (!dbus_message_get_args(
1236 DBUS_TYPE_STRING
, &seat
,
1237 DBUS_TYPE_STRING
, &sysfs
,
1238 DBUS_TYPE_BOOLEAN
, &interactive
,
1240 return bus_send_error_reply(connection
, message
, &error
, -EINVAL
);
1242 if (!path_startswith(sysfs
, "/sys") || !seat_name_is_valid(seat
))
1243 return bus_send_error_reply(connection
, message
, NULL
, -EINVAL
);
1245 r
= verify_polkit(connection
, message
, "org.freedesktop.login1.attach-device", interactive
, &error
);
1247 return bus_send_error_reply(connection
, message
, &error
, r
);
1249 r
= attach_device(m
, seat
, sysfs
);
1251 return bus_send_error_reply(connection
, message
, NULL
, -EINVAL
);
1253 reply
= dbus_message_new_method_return(message
);
1258 } else if (dbus_message_is_method_call(message
, "org.freedesktop.login1.Manager", "FlushDevices")) {
1259 dbus_bool_t interactive
;
1261 if (!dbus_message_get_args(
1264 DBUS_TYPE_BOOLEAN
, &interactive
,
1266 return bus_send_error_reply(connection
, message
, &error
, -EINVAL
);
1268 r
= verify_polkit(connection
, message
, "org.freedesktop.login1.flush-devices", interactive
, &error
);
1270 return bus_send_error_reply(connection
, message
, &error
, r
);
1272 r
= flush_devices(m
);
1274 return bus_send_error_reply(connection
, message
, NULL
, -EINVAL
);
1276 reply
= dbus_message_new_method_return(message
);
1280 } else if (dbus_message_is_method_call(message
, "org.freedesktop.login1.Manager", "PowerOff") ||
1281 dbus_message_is_method_call(message
, "org.freedesktop.login1.Manager", "Reboot")) {
1282 dbus_bool_t interactive
;
1283 bool multiple_sessions
;
1284 DBusMessage
*forward
, *freply
;
1286 const char *mode
= "replace";
1289 if (!dbus_message_get_args(
1292 DBUS_TYPE_BOOLEAN
, &interactive
,
1294 return bus_send_error_reply(connection
, message
, &error
, -EINVAL
);
1296 multiple_sessions
= hashmap_size(m
->sessions
) > 1;
1298 if (!multiple_sessions
) {
1301 /* Hmm, there's only one session, but let's
1302 * make sure it actually belongs to the user
1303 * who is asking. If not, better be safe than
1306 s
= hashmap_first(m
->sessions
);
1310 ul
= dbus_bus_get_unix_user(connection
, dbus_message_get_sender(message
), &error
);
1311 if (ul
== (unsigned long) -1)
1312 return bus_send_error_reply(connection
, message
, &error
, -EIO
);
1314 multiple_sessions
= s
->user
->uid
!= ul
;
1318 if (streq(dbus_message_get_member(message
), "PowerOff")) {
1319 if (multiple_sessions
)
1320 action
= "org.freedesktop.login1.power-off-multiple-sessions";
1322 action
= "org.freedesktop.login1.power-off";
1324 name
= SPECIAL_POWEROFF_TARGET
;
1326 if (multiple_sessions
)
1327 action
= "org.freedesktop.login1.reboot-multiple-sessions";
1329 action
= "org.freedesktop.login1.reboot";
1331 name
= SPECIAL_REBOOT_TARGET
;
1334 r
= verify_polkit(connection
, message
, action
, interactive
, &error
);
1336 return bus_send_error_reply(connection
, message
, &error
, r
);
1338 forward
= dbus_message_new_method_call(
1339 "org.freedesktop.systemd1",
1340 "/org/freedesktop/systemd1",
1341 "org.freedesktop.systemd1.Manager",
1344 return bus_send_error_reply(connection
, message
, NULL
, -ENOMEM
);
1346 if (!dbus_message_append_args(forward
,
1347 DBUS_TYPE_STRING
, &name
,
1348 DBUS_TYPE_STRING
, &mode
,
1349 DBUS_TYPE_INVALID
)) {
1350 dbus_message_unref(forward
);
1351 return bus_send_error_reply(connection
, message
, NULL
, -ENOMEM
);
1354 freply
= dbus_connection_send_with_reply_and_block(connection
, forward
, -1, &error
);
1355 dbus_message_unref(forward
);
1358 return bus_send_error_reply(connection
, message
, &error
, -EIO
);
1360 dbus_message_unref(freply
);
1362 reply
= dbus_message_new_method_return(message
);
1366 } else if (dbus_message_is_method_call(message
, "org.freedesktop.DBus.Introspectable", "Introspect")) {
1367 char *introspection
= NULL
;
1376 if (!(reply
= dbus_message_new_method_return(message
)))
1379 /* We roll our own introspection code here, instead of
1380 * relying on bus_default_message_handler() because we
1381 * need to generate our introspection string
1384 if (!(f
= open_memstream(&introspection
, &size
)))
1387 fputs(INTROSPECTION_BEGIN
, f
);
1389 HASHMAP_FOREACH(seat
, m
->seats
, i
) {
1390 p
= bus_path_escape(seat
->id
);
1393 fprintf(f
, "<node name=\"seat/%s\"/>", p
);
1398 HASHMAP_FOREACH(user
, m
->users
, i
)
1399 fprintf(f
, "<node name=\"user/%llu\"/>", (unsigned long long) user
->uid
);
1401 HASHMAP_FOREACH(session
, m
->sessions
, i
) {
1402 p
= bus_path_escape(session
->id
);
1405 fprintf(f
, "<node name=\"session/%s\"/>", p
);
1410 fputs(INTROSPECTION_END
, f
);
1414 free(introspection
);
1423 if (!dbus_message_append_args(reply
, DBUS_TYPE_STRING
, &introspection
, DBUS_TYPE_INVALID
)) {
1424 free(introspection
);
1428 free(introspection
);
1430 const BusBoundProperties bps
[] = {
1431 { "org.freedesktop.login1.Manager", bus_login_manager_properties
, m
},
1434 return bus_default_message_handler(connection
, message
, NULL
, INTERFACES_LIST
, bps
);
1438 if (!dbus_connection_send(connection
, reply
, NULL
))
1441 dbus_message_unref(reply
);
1444 return DBUS_HANDLER_RESULT_HANDLED
;
1448 dbus_message_unref(reply
);
1450 dbus_error_free(&error
);
1452 return DBUS_HANDLER_RESULT_NEED_MEMORY
;
1455 const DBusObjectPathVTable bus_manager_vtable
= {
1456 .message_function
= manager_message_handler
1459 DBusHandlerResult
bus_message_filter(
1460 DBusConnection
*connection
,
1461 DBusMessage
*message
,
1464 Manager
*m
= userdata
;
1471 dbus_error_init(&error
);
1473 if (dbus_message_is_signal(message
, "org.freedesktop.systemd1.Agent", "Released")) {
1476 if (!dbus_message_get_args(message
, &error
,
1477 DBUS_TYPE_STRING
, &cgroup
,
1479 log_error("Failed to parse Released message: %s", bus_error_message(&error
));
1481 manager_cgroup_notify_empty(m
, cgroup
);
1484 dbus_error_free(&error
);
1486 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED
;
1489 int manager_send_changed(Manager
*manager
, const char *properties
) {
1495 m
= bus_properties_changed_new("/org/freedesktop/login1", "org.freedesktop.login1.Manager", properties
);
1499 if (!dbus_connection_send(manager
->bus
, m
, NULL
))
1506 dbus_message_unref(m
);