-/*-*- 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 Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
+/* SPDX-License-Identifier: LGPL-2.1+ */
#include <errno.h>
#include <string.h>
-#include <sys/capability.h>
-#include "util.h"
+#include "alloc-util.h"
+#include "bus-common-errors.h"
+#include "bus-label.h"
#include "bus-util.h"
-#include "strv.h"
-#include "bus-errors.h"
-#include "logind.h"
+#include "logind-dbus.h"
+#include "logind-seat-dbus.h"
#include "logind-seat.h"
+#include "logind-session-dbus.h"
+#include "logind.h"
+#include "missing_capability.h"
+#include "strv.h"
+#include "user-util.h"
+#include "util.h"
+
+static BUS_DEFINE_PROPERTY_GET(property_get_can_multi_session, "b", Seat, seat_can_multi_session);
+static BUS_DEFINE_PROPERTY_GET(property_get_can_tty, "b", Seat, seat_can_tty);
+static BUS_DEFINE_PROPERTY_GET(property_get_can_graphical, "b", Seat, seat_can_graphical);
static int property_get_active_session(
sd_bus *bus,
return sd_bus_message_append(reply, "(so)", s->active ? s->active->id : "", p);
}
-static int property_get_can_multi_session(
- sd_bus *bus,
- const char *path,
- const char *interface,
- const char *property,
- sd_bus_message *reply,
- void *userdata,
- sd_bus_error *error) {
-
- Seat *s = userdata;
-
- assert(bus);
- assert(reply);
- assert(s);
-
- return sd_bus_message_append(reply, "b", seat_can_multi_session(s));
-}
-
-static int property_get_can_tty(
- sd_bus *bus,
- const char *path,
- const char *interface,
- const char *property,
- sd_bus_message *reply,
- void *userdata,
- sd_bus_error *error) {
-
- Seat *s = userdata;
-
- assert(bus);
- assert(reply);
- assert(s);
-
- return sd_bus_message_append(reply, "b", seat_can_tty(s));
-}
-
-static int property_get_can_graphical(
- sd_bus *bus,
- const char *path,
- const char *interface,
- const char *property,
- sd_bus_message *reply,
- void *userdata,
- sd_bus_error *error) {
-
- Seat *s = userdata;
-
- assert(bus);
- assert(reply);
- assert(s);
-
- return sd_bus_message_append(reply, "b", seat_can_graphical(s));
-}
-
static int property_get_sessions(
sd_bus *bus,
const char *path,
return sd_bus_message_append(reply, "t", u);
}
-static int method_terminate(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
+int bus_seat_method_terminate(sd_bus_message *message, void *userdata, sd_bus_error *error) {
Seat *s = userdata;
int r;
- assert(bus);
assert(message);
assert(s);
- r = seat_stop_sessions(s);
+ r = bus_verify_polkit_async(
+ message,
+ CAP_KILL,
+ "org.freedesktop.login1.manage",
+ NULL,
+ false,
+ UID_INVALID,
+ &s->manager->polkit_registry,
+ error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* Will call us back */
+
+ r = seat_stop_sessions(s, true);
if (r < 0)
return r;
return sd_bus_reply_method_return(message, NULL);
}
-static int method_activate_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
+static int method_activate_session(sd_bus_message *message, void *userdata, sd_bus_error *error) {
Seat *s = userdata;
const char *name;
Session *session;
int r;
- assert(bus);
assert(message);
assert(s);
return sd_bus_reply_method_return(message, NULL);
}
+static int method_switch_to(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Seat *s = userdata;
+ unsigned to;
+ int r;
+
+ assert(message);
+ assert(s);
+
+ r = sd_bus_message_read(message, "u", &to);
+ if (r < 0)
+ return r;
+
+ if (to <= 0)
+ return -EINVAL;
+
+ r = seat_switch_to(s, to);
+ if (r < 0)
+ return r;
+
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+static int method_switch_to_next(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Seat *s = userdata;
+ int r;
+
+ assert(message);
+ assert(s);
+
+ r = seat_switch_to_next(s);
+ if (r < 0)
+ return r;
+
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+static int method_switch_to_previous(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Seat *s = userdata;
+ int r;
+
+ assert(message);
+ assert(s);
+
+ r = seat_switch_to_previous(s);
+ if (r < 0)
+ return r;
+
+ return sd_bus_reply_method_return(message, NULL);
+}
+
const sd_bus_vtable seat_vtable[] = {
SD_BUS_VTABLE_START(0),
SD_BUS_PROPERTY("CanMultiSession", "b", property_get_can_multi_session, 0, SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("CanTTY", "b", property_get_can_tty, 0, SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("CanGraphical", "b", property_get_can_graphical, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
- SD_BUS_PROPERTY("Sessions", "a(so)", property_get_sessions, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
+ SD_BUS_PROPERTY("Sessions", "a(so)", property_get_sessions, 0, 0),
SD_BUS_PROPERTY("IdleHint", "b", property_get_idle_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
SD_BUS_PROPERTY("IdleSinceHint", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
SD_BUS_PROPERTY("IdleSinceHintMonotonic", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
- SD_BUS_METHOD("Terminate", NULL, NULL, method_terminate, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)),
+ SD_BUS_METHOD("Terminate", NULL, NULL, bus_seat_method_terminate, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("ActivateSession", "s", NULL, method_activate_session, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("SwitchTo", "u", NULL, method_switch_to, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("SwitchToNext", NULL, NULL, method_switch_to_next, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("SwitchToPrevious", NULL, NULL, method_switch_to_previous, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_VTABLE_END
};
int seat_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) {
+ _cleanup_free_ char *e = NULL;
+ sd_bus_message *message;
Manager *m = userdata;
+ const char *p;
Seat *seat;
int r;
assert(found);
assert(m);
- if (streq(path, "/org/freedesktop/login1/seat/self")) {
- _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
- sd_bus_message *message;
- Session *session;
- pid_t pid;
-
- message = sd_bus_get_current(bus);
- if (!message)
- return 0;
-
- r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds);
- if (r < 0)
- return r;
-
- r = sd_bus_creds_get_pid(creds, &pid);
- if (r < 0)
- return r;
-
- r = manager_get_session_by_pid(m, pid, &session);
- if (r <= 0)
- return 0;
-
- if (!session->seat)
- return 0;
-
- seat = session->seat;
- } else {
- _cleanup_free_ char *e = NULL;
- const char *p;
+ p = startswith(path, "/org/freedesktop/login1/seat/");
+ if (!p)
+ return 0;
- p = startswith(path, "/org/freedesktop/login1/seat/");
- if (!p)
- return 0;
+ e = bus_label_unescape(p);
+ if (!e)
+ return -ENOMEM;
- e = sd_bus_label_unescape(p);
- if (!e)
- return -ENOMEM;
+ message = sd_bus_get_current_message(bus);
+ if (!message)
+ return 0;
- seat = hashmap_get(m->seats, e);
- if (!seat)
- return 0;
+ r = manager_get_seat_from_creds(m, message, e, error, &seat);
+ if (r == -ENXIO) {
+ sd_bus_error_free(error);
+ return 0;
}
+ if (r < 0)
+ return r;
*found = seat;
return 1;
assert(s);
- t = sd_bus_label_escape(s->id);
+ t = bus_label_escape(s->id);
if (!t)
return NULL;
int seat_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) {
_cleanup_strv_free_ char **l = NULL;
+ sd_bus_message *message;
Manager *m = userdata;
Seat *seat;
Iterator i;
if (!p)
return -ENOMEM;
- r = strv_push(&l, p);
- if (r < 0) {
- free(p);
+ r = strv_consume(&l, p);
+ if (r < 0)
return r;
- }
}
- *nodes = l;
- l = NULL;
+ message = sd_bus_get_current_message(bus);
+ if (message) {
+ _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
+
+ r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_SESSION|SD_BUS_CREDS_OWNER_UID|SD_BUS_CREDS_AUGMENT, &creds);
+ if (r >= 0) {
+ bool may_auto = false;
+ const char *name;
+
+ r = sd_bus_creds_get_session(creds, &name);
+ if (r >= 0) {
+ Session *session;
+
+ session = hashmap_get(m->sessions, name);
+ if (session && session->seat) {
+ r = strv_extend(&l, "/org/freedesktop/login1/seat/self");
+ if (r < 0)
+ return r;
+
+ may_auto = true;
+ }
+ }
+
+ if (!may_auto) {
+ uid_t uid;
+
+ r = sd_bus_creds_get_owner_uid(creds, &uid);
+ if (r >= 0) {
+ User *user;
+
+ user = hashmap_get(m->users, UID_TO_PTR(uid));
+ may_auto = user && user->display && user->display->seat;
+ }
+ }
+
+ if (may_auto) {
+ r = strv_extend(&l, "/org/freedesktop/login1/seat/auto");
+ if (r < 0)
+ return r;
+ }
+ }
+ }
+ *nodes = TAKE_PTR(l);
return 1;
}
projects / thirdparty / systemd.git / blobdiff