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-rw-r--r--src/login/logind-dbus.c4183
1 files changed, 4183 insertions, 0 deletions
diff --git a/src/login/logind-dbus.c b/src/login/logind-dbus.c
new file mode 100644
index 0000000..56aba3b
--- /dev/null
+++ b/src/login/logind-dbus.c
@@ -0,0 +1,4183 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <errno.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include "sd-device.h"
+#include "sd-messages.h"
+
+#include "alloc-util.h"
+#include "audit-util.h"
+#include "bootspec.h"
+#include "bus-common-errors.h"
+#include "bus-error.h"
+#include "bus-get-properties.h"
+#include "bus-locator.h"
+#include "bus-polkit.h"
+#include "bus-unit-util.h"
+#include "bus-util.h"
+#include "cgroup-util.h"
+#include "device-util.h"
+#include "dirent-util.h"
+#include "efi-api.h"
+#include "efi-loader.h"
+#include "efivars.h"
+#include "env-file.h"
+#include "env-util.h"
+#include "escape.h"
+#include "event-util.h"
+#include "fd-util.h"
+#include "fileio-label.h"
+#include "fileio.h"
+#include "format-util.h"
+#include "fs-util.h"
+#include "logind-action.h"
+#include "logind-dbus.h"
+#include "logind-polkit.h"
+#include "logind-seat-dbus.h"
+#include "logind-session-dbus.h"
+#include "logind-user-dbus.h"
+#include "logind.h"
+#include "missing_capability.h"
+#include "mkdir-label.h"
+#include "parse-util.h"
+#include "path-util.h"
+#include "process-util.h"
+#include "reboot-util.h"
+#include "selinux-util.h"
+#include "sleep-config.h"
+#include "special.h"
+#include "serialize.h"
+#include "stdio-util.h"
+#include "strv.h"
+#include "terminal-util.h"
+#include "tmpfile-util.h"
+#include "unit-name.h"
+#include "user-util.h"
+#include "utmp-wtmp.h"
+#include "virt.h"
+
+/* As a random fun fact sysvinit had a 252 (256-(strlen(" \r\n")+1))
+ * character limit for the wall message.
+ * https://git.savannah.nongnu.org/cgit/sysvinit.git/tree/src/shutdown.c#n72
+ * There is no real technical need for that but doesn't make sense
+ * to store arbitrary amounts either. As we are not stingy here, we
+ * allow 4k.
+ */
+#define WALL_MESSAGE_MAX 4096U
+
+#define SHUTDOWN_SCHEDULE_FILE "/run/systemd/shutdown/scheduled"
+
+static int update_schedule_file(Manager *m);
+static void reset_scheduled_shutdown(Manager *m);
+static int manager_setup_shutdown_timers(Manager* m);
+
+static int get_sender_session(
+ Manager *m,
+ sd_bus_message *message,
+ bool consult_display,
+ sd_bus_error *error,
+ Session **ret) {
+
+ _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
+ Session *session = NULL;
+ const char *name;
+ int r;
+
+ /* Acquire the sender's session. This first checks if the sending process is inside a session itself,
+ * and returns that. If not and 'consult_display' is true, this returns the display session of the
+ * owning user of the caller. */
+
+ r = sd_bus_query_sender_creds(message,
+ SD_BUS_CREDS_SESSION|SD_BUS_CREDS_AUGMENT|
+ (consult_display ? SD_BUS_CREDS_OWNER_UID : 0), &creds);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_creds_get_session(creds, &name);
+ if (r < 0) {
+ if (r != -ENXIO)
+ return r;
+
+ if (consult_display) {
+ uid_t uid;
+
+ r = sd_bus_creds_get_owner_uid(creds, &uid);
+ if (r < 0) {
+ if (r != -ENXIO)
+ return r;
+ } else {
+ User *user;
+
+ user = hashmap_get(m->users, UID_TO_PTR(uid));
+ if (user)
+ session = user->display;
+ }
+ }
+ } else
+ session = hashmap_get(m->sessions, name);
+
+ if (!session)
+ return sd_bus_error_setf(error, BUS_ERROR_NO_SESSION_FOR_PID,
+ consult_display ?
+ "Caller does not belong to any known session and doesn't own any suitable session." :
+ "Caller does not belong to any known session.");
+
+ *ret = session;
+ return 0;
+}
+
+int manager_get_session_from_creds(
+ Manager *m,
+ sd_bus_message *message,
+ const char *name,
+ sd_bus_error *error,
+ Session **ret) {
+
+ Session *session;
+
+ assert(m);
+ assert(ret);
+
+ if (SEAT_IS_SELF(name)) /* the caller's own session */
+ return get_sender_session(m, message, false, error, ret);
+ if (SEAT_IS_AUTO(name)) /* The caller's own session if they have one, otherwise their user's display session */
+ return get_sender_session(m, message, true, error, ret);
+
+ session = hashmap_get(m->sessions, name);
+ if (!session)
+ return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name);
+
+ *ret = session;
+ return 0;
+}
+
+static int get_sender_user(Manager *m, sd_bus_message *message, sd_bus_error *error, User **ret) {
+ _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
+ uid_t uid;
+ User *user;
+ int r;
+
+ /* Note that we get the owner UID of the session, not the actual client UID here! */
+ r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_OWNER_UID|SD_BUS_CREDS_AUGMENT, &creds);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_creds_get_owner_uid(creds, &uid);
+ if (r < 0) {
+ if (r != -ENXIO)
+ return r;
+
+ user = NULL;
+ } else
+ user = hashmap_get(m->users, UID_TO_PTR(uid));
+
+ if (!user)
+ return sd_bus_error_setf(error, BUS_ERROR_NO_USER_FOR_PID,
+ "Caller does not belong to any logged in or lingering user");
+
+ *ret = user;
+ return 0;
+}
+
+int manager_get_user_from_creds(Manager *m, sd_bus_message *message, uid_t uid, sd_bus_error *error, User **ret) {
+ User *user;
+
+ assert(m);
+ assert(ret);
+
+ if (!uid_is_valid(uid))
+ return get_sender_user(m, message, error, ret);
+
+ user = hashmap_get(m->users, UID_TO_PTR(uid));
+ if (!user)
+ return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_USER,
+ "User ID "UID_FMT" is not logged in or lingering", uid);
+
+ *ret = user;
+ return 0;
+}
+
+int manager_get_seat_from_creds(
+ Manager *m,
+ sd_bus_message *message,
+ const char *name,
+ sd_bus_error *error,
+ Seat **ret) {
+
+ Seat *seat;
+ int r;
+
+ assert(m);
+ assert(ret);
+
+ if (SEAT_IS_SELF(name) || SEAT_IS_AUTO(name)) {
+ Session *session;
+
+ /* Use these special seat names as session names */
+ r = manager_get_session_from_creds(m, message, name, error, &session);
+ if (r < 0)
+ return r;
+
+ seat = session->seat;
+ if (!seat)
+ return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SEAT, "Session '%s' has no seat.", session->id);
+ } else {
+ seat = hashmap_get(m->seats, name);
+ if (!seat)
+ return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SEAT, "No seat '%s' known", name);
+ }
+
+ *ret = seat;
+ return 0;
+}
+
+static int return_test_polkit(
+ sd_bus_message *message,
+ int capability,
+ const char *action,
+ const char **details,
+ uid_t good_user,
+ sd_bus_error *e) {
+
+ const char *result;
+ bool challenge;
+ int r;
+
+ r = bus_test_polkit(message, capability, action, details, good_user, &challenge, e);
+ if (r < 0)
+ return r;
+
+ if (r > 0)
+ result = "yes";
+ else if (challenge)
+ result = "challenge";
+ else
+ result = "no";
+
+ return sd_bus_reply_method_return(message, "s", result);
+}
+
+static int property_get_idle_hint(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
+
+ Manager *m = ASSERT_PTR(userdata);
+
+ assert(bus);
+ assert(reply);
+
+ return sd_bus_message_append(reply, "b", manager_get_idle_hint(m, NULL) > 0);
+}
+
+static int property_get_idle_since_hint(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
+
+ Manager *m = ASSERT_PTR(userdata);
+ dual_timestamp t = DUAL_TIMESTAMP_NULL;
+
+ assert(bus);
+ assert(reply);
+
+ manager_get_idle_hint(m, &t);
+
+ return sd_bus_message_append(reply, "t", streq(property, "IdleSinceHint") ? t.realtime : t.monotonic);
+}
+
+static int property_get_inhibited(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
+
+ Manager *m = ASSERT_PTR(userdata);
+ InhibitWhat w;
+
+ assert(bus);
+ assert(reply);
+
+ w = manager_inhibit_what(m, streq(property, "BlockInhibited") ? INHIBIT_BLOCK : INHIBIT_DELAY);
+
+ return sd_bus_message_append(reply, "s", inhibit_what_to_string(w));
+}
+
+static int property_get_preparing(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
+
+ Manager *m = ASSERT_PTR(userdata);
+ bool b = false;
+
+ assert(bus);
+ assert(reply);
+
+ if (m->delayed_action) {
+ if (streq(property, "PreparingForShutdown"))
+ b = m->delayed_action->inhibit_what & INHIBIT_SHUTDOWN;
+ else
+ b = m->delayed_action->inhibit_what & INHIBIT_SLEEP;
+ }
+
+ return sd_bus_message_append(reply, "b", b);
+}
+
+static int property_get_scheduled_shutdown(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
+
+ Manager *m = ASSERT_PTR(userdata);
+ int r;
+
+ assert(bus);
+ assert(reply);
+
+ r = sd_bus_message_open_container(reply, 'r', "st");
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_append(reply, "st",
+ m->scheduled_shutdown_action ? handle_action_to_string(m->scheduled_shutdown_action->handle) : NULL,
+ m->scheduled_shutdown_timeout);
+ if (r < 0)
+ return r;
+
+ return sd_bus_message_close_container(reply);
+}
+
+static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_handle_action, handle_action, HandleAction);
+static BUS_DEFINE_PROPERTY_GET(property_get_docked, "b", Manager, manager_is_docked_or_external_displays);
+static BUS_DEFINE_PROPERTY_GET(property_get_lid_closed, "b", Manager, manager_is_lid_closed);
+static BUS_DEFINE_PROPERTY_GET_GLOBAL(property_get_on_external_power, "b", manager_is_on_external_power());
+static BUS_DEFINE_PROPERTY_GET_GLOBAL(property_get_compat_user_tasks_max, "t", CGROUP_LIMIT_MAX);
+static BUS_DEFINE_PROPERTY_GET_REF(property_get_hashmap_size, "t", Hashmap *, (uint64_t) hashmap_size);
+
+static int method_get_session(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ _cleanup_free_ char *p = NULL;
+ Manager *m = ASSERT_PTR(userdata);
+ const char *name;
+ Session *session;
+ int r;
+
+ assert(message);
+
+ r = sd_bus_message_read(message, "s", &name);
+ if (r < 0)
+ return r;
+
+ r = manager_get_session_from_creds(m, message, name, error, &session);
+ if (r < 0)
+ return r;
+
+ p = session_bus_path(session);
+ if (!p)
+ return -ENOMEM;
+
+ return sd_bus_reply_method_return(message, "o", p);
+}
+
+/* Get login session of a process. This is not what you are looking for these days,
+ * as apps may instead belong to a user service unit. This includes terminal
+ * emulators and hence command-line apps. */
+static int method_get_session_by_pid(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ _cleanup_free_ char *p = NULL;
+ Session *session = NULL;
+ Manager *m = ASSERT_PTR(userdata);
+ pid_t pid;
+ int r;
+
+ assert(message);
+
+ assert_cc(sizeof(pid_t) == sizeof(uint32_t));
+
+ r = sd_bus_message_read(message, "u", &pid);
+ if (r < 0)
+ return r;
+ if (pid < 0)
+ return -EINVAL;
+
+ if (pid == 0) {
+ r = manager_get_session_from_creds(m, message, NULL, error, &session);
+ if (r < 0)
+ return r;
+ } else {
+ r = manager_get_session_by_pid(m, pid, &session);
+ if (r < 0)
+ return r;
+
+ if (!session)
+ return sd_bus_error_setf(error, BUS_ERROR_NO_SESSION_FOR_PID,
+ "PID "PID_FMT" does not belong to any known session", pid);
+ }
+
+ p = session_bus_path(session);
+ if (!p)
+ return -ENOMEM;
+
+ return sd_bus_reply_method_return(message, "o", p);
+}
+
+static int method_get_user(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ _cleanup_free_ char *p = NULL;
+ Manager *m = ASSERT_PTR(userdata);
+ uint32_t uid;
+ User *user;
+ int r;
+
+ assert(message);
+
+ r = sd_bus_message_read(message, "u", &uid);
+ if (r < 0)
+ return r;
+
+ r = manager_get_user_from_creds(m, message, uid, error, &user);
+ if (r < 0)
+ return r;
+
+ p = user_bus_path(user);
+ if (!p)
+ return -ENOMEM;
+
+ return sd_bus_reply_method_return(message, "o", p);
+}
+
+static int method_get_user_by_pid(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ _cleanup_free_ char *p = NULL;
+ Manager *m = ASSERT_PTR(userdata);
+ User *user = NULL;
+ pid_t pid;
+ int r;
+
+ assert(message);
+
+ assert_cc(sizeof(pid_t) == sizeof(uint32_t));
+
+ r = sd_bus_message_read(message, "u", &pid);
+ if (r < 0)
+ return r;
+ if (pid < 0)
+ return -EINVAL;
+
+ if (pid == 0) {
+ r = manager_get_user_from_creds(m, message, UID_INVALID, error, &user);
+ if (r < 0)
+ return r;
+ } else {
+ r = manager_get_user_by_pid(m, pid, &user);
+ if (r < 0)
+ return r;
+ if (!user)
+ return sd_bus_error_setf(error, BUS_ERROR_NO_USER_FOR_PID,
+ "PID "PID_FMT" does not belong to any logged in user or lingering user",
+ pid);
+ }
+
+ p = user_bus_path(user);
+ if (!p)
+ return -ENOMEM;
+
+ return sd_bus_reply_method_return(message, "o", p);
+}
+
+static int method_get_seat(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ _cleanup_free_ char *p = NULL;
+ Manager *m = ASSERT_PTR(userdata);
+ const char *name;
+ Seat *seat;
+ int r;
+
+ assert(message);
+
+ r = sd_bus_message_read(message, "s", &name);
+ if (r < 0)
+ return r;
+
+ r = manager_get_seat_from_creds(m, message, name, error, &seat);
+ if (r < 0)
+ return r;
+
+ p = seat_bus_path(seat);
+ if (!p)
+ return -ENOMEM;
+
+ return sd_bus_reply_method_return(message, "o", p);
+}
+
+static int method_list_sessions(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
+ Manager *m = ASSERT_PTR(userdata);
+ Session *session;
+ int r;
+
+ assert(message);
+
+ r = sd_bus_message_new_method_return(message, &reply);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_open_container(reply, 'a', "(susso)");
+ if (r < 0)
+ return r;
+
+ HASHMAP_FOREACH(session, m->sessions) {
+ _cleanup_free_ char *p = NULL;
+
+ p = session_bus_path(session);
+ if (!p)
+ return -ENOMEM;
+
+ r = sd_bus_message_append(reply, "(susso)",
+ session->id,
+ (uint32_t) session->user->user_record->uid,
+ session->user->user_record->user_name,
+ session->seat ? session->seat->id : "",
+ p);
+ if (r < 0)
+ return r;
+ }
+
+ r = sd_bus_message_close_container(reply);
+ if (r < 0)
+ return r;
+
+ return sd_bus_send(NULL, reply, NULL);
+}
+
+static int method_list_users(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
+ Manager *m = ASSERT_PTR(userdata);
+ User *user;
+ int r;
+
+ assert(message);
+
+ r = sd_bus_message_new_method_return(message, &reply);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_open_container(reply, 'a', "(uso)");
+ if (r < 0)
+ return r;
+
+ HASHMAP_FOREACH(user, m->users) {
+ _cleanup_free_ char *p = NULL;
+
+ p = user_bus_path(user);
+ if (!p)
+ return -ENOMEM;
+
+ r = sd_bus_message_append(reply, "(uso)",
+ (uint32_t) user->user_record->uid,
+ user->user_record->user_name,
+ p);
+ if (r < 0)
+ return r;
+ }
+
+ r = sd_bus_message_close_container(reply);
+ if (r < 0)
+ return r;
+
+ return sd_bus_send(NULL, reply, NULL);
+}
+
+static int method_list_seats(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
+ Manager *m = ASSERT_PTR(userdata);
+ Seat *seat;
+ int r;
+
+ assert(message);
+
+ r = sd_bus_message_new_method_return(message, &reply);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_open_container(reply, 'a', "(so)");
+ if (r < 0)
+ return r;
+
+ HASHMAP_FOREACH(seat, m->seats) {
+ _cleanup_free_ char *p = NULL;
+
+ p = seat_bus_path(seat);
+ if (!p)
+ return -ENOMEM;
+
+ r = sd_bus_message_append(reply, "(so)", seat->id, p);
+ if (r < 0)
+ return r;
+ }
+
+ r = sd_bus_message_close_container(reply);
+ if (r < 0)
+ return r;
+
+ return sd_bus_send(NULL, reply, NULL);
+}
+
+static int method_list_inhibitors(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
+ Manager *m = ASSERT_PTR(userdata);
+ Inhibitor *inhibitor;
+ int r;
+
+ assert(message);
+
+ r = sd_bus_message_new_method_return(message, &reply);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_open_container(reply, 'a', "(ssssuu)");
+ if (r < 0)
+ return r;
+
+ HASHMAP_FOREACH(inhibitor, m->inhibitors) {
+
+ r = sd_bus_message_append(reply, "(ssssuu)",
+ strempty(inhibit_what_to_string(inhibitor->what)),
+ strempty(inhibitor->who),
+ strempty(inhibitor->why),
+ strempty(inhibit_mode_to_string(inhibitor->mode)),
+ (uint32_t) inhibitor->uid,
+ (uint32_t) inhibitor->pid);
+ if (r < 0)
+ return r;
+ }
+
+ r = sd_bus_message_close_container(reply);
+ if (r < 0)
+ return r;
+
+ return sd_bus_send(NULL, reply, NULL);
+}
+
+static int method_create_session(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ const char *service, *type, *class, *cseat, *tty, *display, *remote_user, *remote_host, *desktop;
+ _cleanup_free_ char *id = NULL;
+ Session *session = NULL;
+ uint32_t audit_id = 0;
+ Manager *m = ASSERT_PTR(userdata);
+ User *user = NULL;
+ Seat *seat = NULL;
+ pid_t leader;
+ uid_t uid;
+ int remote;
+ uint32_t vtnr = 0;
+ SessionType t;
+ SessionClass c;
+ int r;
+
+ assert(message);
+
+ assert_cc(sizeof(pid_t) == sizeof(uint32_t));
+ assert_cc(sizeof(uid_t) == sizeof(uint32_t));
+
+ r = sd_bus_message_read(message, "uusssssussbss",
+ &uid, &leader, &service, &type, &class, &desktop, &cseat,
+ &vtnr, &tty, &display, &remote, &remote_user, &remote_host);
+ if (r < 0)
+ return r;
+
+ if (!uid_is_valid(uid))
+ return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid UID");
+ if (leader < 0 || leader == 1 || leader == getpid_cached())
+ return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid leader PID");
+
+ if (isempty(type))
+ t = _SESSION_TYPE_INVALID;
+ else {
+ t = session_type_from_string(type);
+ if (t < 0)
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
+ "Invalid session type %s", type);
+ }
+
+ if (isempty(class))
+ c = _SESSION_CLASS_INVALID;
+ else {
+ c = session_class_from_string(class);
+ if (c < 0)
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
+ "Invalid session class %s", class);
+ }
+
+ if (isempty(desktop))
+ desktop = NULL;
+ else {
+ if (!string_is_safe(desktop))
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
+ "Invalid desktop string %s", desktop);
+ }
+
+ if (isempty(cseat))
+ seat = NULL;
+ else {
+ seat = hashmap_get(m->seats, cseat);
+ if (!seat)
+ return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SEAT,
+ "No seat '%s' known", cseat);
+ }
+
+ if (tty_is_vc(tty)) {
+ int v;
+
+ if (!seat)
+ seat = m->seat0;
+ else if (seat != m->seat0)
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
+ "TTY %s is virtual console but seat %s is not seat0", tty, seat->id);
+
+ v = vtnr_from_tty(tty);
+ if (v <= 0)
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
+ "Cannot determine VT number from virtual console TTY %s", tty);
+
+ if (vtnr == 0)
+ vtnr = (uint32_t) v;
+ else if (vtnr != (uint32_t) v)
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
+ "Specified TTY and VT number do not match");
+
+ } else if (tty_is_console(tty)) {
+
+ if (!seat)
+ seat = m->seat0;
+ else if (seat != m->seat0)
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
+ "Console TTY specified but seat is not seat0");
+
+ if (vtnr != 0)
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
+ "Console TTY specified but VT number is not 0");
+ }
+
+ if (seat) {
+ if (seat_has_vts(seat)) {
+ if (vtnr <= 0 || vtnr > 63)
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
+ "VT number out of range");
+ } else {
+ if (vtnr != 0)
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
+ "Seat has no VTs but VT number not 0");
+ }
+ }
+
+ if (t == _SESSION_TYPE_INVALID) {
+ if (!isempty(display))
+ t = SESSION_X11;
+ else if (!isempty(tty))
+ t = SESSION_TTY;
+ else
+ t = SESSION_UNSPECIFIED;
+ }
+
+ if (c == _SESSION_CLASS_INVALID) {
+ if (t == SESSION_UNSPECIFIED)
+ c = SESSION_BACKGROUND;
+ else
+ c = SESSION_USER;
+ }
+
+ if (leader == 0) {
+ _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
+
+ 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_t*) &leader);
+ if (r < 0)
+ return r;
+ }
+
+ /* Check if we are already in a logind session. Or if we are in user@.service
+ * which is a special PAM session that avoids creating a logind session. */
+ r = manager_get_user_by_pid(m, leader, NULL);
+ if (r < 0)
+ return r;
+ if (r > 0)
+ return sd_bus_error_setf(error, BUS_ERROR_SESSION_BUSY,
+ "Already running in a session or user slice");
+
+ /*
+ * Old gdm and lightdm start the user-session on the same VT as
+ * the greeter session. But they destroy the greeter session
+ * after the user-session and want the user-session to take
+ * over the VT. We need to support this for
+ * backwards-compatibility, so make sure we allow new sessions
+ * on a VT that a greeter is running on. Furthermore, to allow
+ * re-logins, we have to allow a greeter to take over a used VT for
+ * the exact same reasons.
+ */
+ if (c != SESSION_GREETER &&
+ vtnr > 0 &&
+ vtnr < MALLOC_ELEMENTSOF(m->seat0->positions) &&
+ m->seat0->positions[vtnr] &&
+ m->seat0->positions[vtnr]->class != SESSION_GREETER)
+ return sd_bus_error_set(error, BUS_ERROR_SESSION_BUSY, "Already occupied by a session");
+
+ if (hashmap_size(m->sessions) >= m->sessions_max)
+ return sd_bus_error_setf(error, SD_BUS_ERROR_LIMITS_EXCEEDED,
+ "Maximum number of sessions (%" PRIu64 ") reached, refusing further sessions.",
+ m->sessions_max);
+
+ (void) audit_session_from_pid(leader, &audit_id);
+ if (audit_session_is_valid(audit_id)) {
+ /* Keep our session IDs and the audit session IDs in sync */
+
+ if (asprintf(&id, "%"PRIu32, audit_id) < 0)
+ return -ENOMEM;
+
+ /* Wut? There's already a session by this name and we didn't find it above? Weird, then let's
+ * not trust the audit data and let's better register a new ID */
+ if (hashmap_contains(m->sessions, id)) {
+ log_warning("Existing logind session ID %s used by new audit session, ignoring.", id);
+ audit_id = AUDIT_SESSION_INVALID;
+ id = mfree(id);
+ }
+ }
+
+ if (!id) {
+ do {
+ id = mfree(id);
+
+ if (asprintf(&id, "c%lu", ++m->session_counter) < 0)
+ return -ENOMEM;
+
+ } while (hashmap_contains(m->sessions, id));
+ }
+
+ /* The generated names should not clash with 'auto' or 'self' */
+ assert(!SESSION_IS_SELF(id));
+ assert(!SESSION_IS_AUTO(id));
+
+ /* If we are not watching utmp already, try again */
+ manager_reconnect_utmp(m);
+
+ r = manager_add_user_by_uid(m, uid, &user);
+ if (r < 0)
+ goto fail;
+
+ r = manager_add_session(m, id, &session);
+ if (r < 0)
+ goto fail;
+
+ session_set_user(session, user);
+ r = session_set_leader(session, leader);
+ if (r < 0)
+ goto fail;
+
+ session->original_type = session->type = t;
+ session->class = c;
+ session->remote = remote;
+ session->vtnr = vtnr;
+
+ if (!isempty(tty)) {
+ session->tty = strdup(tty);
+ if (!session->tty) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ session->tty_validity = TTY_FROM_PAM;
+ }
+
+ if (!isempty(display)) {
+ session->display = strdup(display);
+ if (!session->display) {
+ r = -ENOMEM;
+ goto fail;
+ }
+ }
+
+ if (!isempty(remote_user)) {
+ session->remote_user = strdup(remote_user);
+ if (!session->remote_user) {
+ r = -ENOMEM;
+ goto fail;
+ }
+ }
+
+ if (!isempty(remote_host)) {
+ session->remote_host = strdup(remote_host);
+ if (!session->remote_host) {
+ r = -ENOMEM;
+ goto fail;
+ }
+ }
+
+ if (!isempty(service)) {
+ session->service = strdup(service);
+ if (!session->service) {
+ r = -ENOMEM;
+ goto fail;
+ }
+ }
+
+ if (!isempty(desktop)) {
+ session->desktop = strdup(desktop);
+ if (!session->desktop) {
+ r = -ENOMEM;
+ goto fail;
+ }
+ }
+
+ if (seat) {
+ r = seat_attach_session(seat, session);
+ if (r < 0)
+ goto fail;
+ }
+
+ r = sd_bus_message_enter_container(message, 'a', "(sv)");
+ if (r < 0)
+ goto fail;
+
+ r = session_start(session, message, error);
+ if (r < 0)
+ goto fail;
+
+ r = sd_bus_message_exit_container(message);
+ if (r < 0)
+ goto fail;
+
+ session->create_message = sd_bus_message_ref(message);
+
+ /* Now, let's wait until the slice unit and stuff got created. We send the reply back from
+ * session_send_create_reply(). */
+
+ return 1;
+
+fail:
+ if (session)
+ session_add_to_gc_queue(session);
+
+ if (user)
+ user_add_to_gc_queue(user);
+
+ return r;
+}
+
+static int method_release_session(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *m = ASSERT_PTR(userdata);
+ Session *session;
+ const char *name;
+ int r;
+
+ assert(message);
+
+ r = sd_bus_message_read(message, "s", &name);
+ if (r < 0)
+ return r;
+
+ r = manager_get_session_from_creds(m, message, name, error, &session);
+ if (r < 0)
+ return r;
+
+ r = session_release(session);
+ if (r < 0)
+ return r;
+
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+static int method_activate_session(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *m = ASSERT_PTR(userdata);
+ Session *session;
+ const char *name;
+ int r;
+
+ assert(message);
+
+ r = sd_bus_message_read(message, "s", &name);
+ if (r < 0)
+ return r;
+
+ r = manager_get_session_from_creds(m, message, name, error, &session);
+ if (r < 0)
+ return r;
+
+ /* PolicyKit is done by bus_session_method_activate() */
+
+ return bus_session_method_activate(message, session, error);
+}
+
+static int method_activate_session_on_seat(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ const char *session_name, *seat_name;
+ Manager *m = ASSERT_PTR(userdata);
+ Session *session;
+ Seat *seat;
+ int r;
+
+ assert(message);
+
+ /* Same as ActivateSession() but refuses to work if the seat doesn't match */
+
+ r = sd_bus_message_read(message, "ss", &session_name, &seat_name);
+ if (r < 0)
+ return r;
+
+ r = manager_get_session_from_creds(m, message, session_name, error, &session);
+ if (r < 0)
+ return r;
+
+ r = manager_get_seat_from_creds(m, message, seat_name, error, &seat);
+ if (r < 0)
+ return r;
+
+ if (session->seat != seat)
+ return sd_bus_error_setf(error, BUS_ERROR_SESSION_NOT_ON_SEAT,
+ "Session %s not on seat %s", session_name, seat_name);
+
+ r = check_polkit_chvt(message, m, error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* Will call us back */
+
+ r = session_activate(session);
+ if (r < 0)
+ return r;
+
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+static int method_lock_session(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *m = ASSERT_PTR(userdata);
+ Session *session;
+ const char *name;
+ int r;
+
+ assert(message);
+
+ r = sd_bus_message_read(message, "s", &name);
+ if (r < 0)
+ return r;
+
+ r = manager_get_session_from_creds(m, message, name, error, &session);
+ if (r < 0)
+ return r;
+
+ return bus_session_method_lock(message, session, error);
+}
+
+static int method_lock_sessions(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *m = ASSERT_PTR(userdata);
+ int r;
+
+ assert(message);
+
+ r = bus_verify_polkit_async(
+ message,
+ CAP_SYS_ADMIN,
+ "org.freedesktop.login1.lock-sessions",
+ NULL,
+ false,
+ UID_INVALID,
+ &m->polkit_registry,
+ error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* Will call us back */
+
+ r = session_send_lock_all(m, streq(sd_bus_message_get_member(message), "LockSessions"));
+ if (r < 0)
+ return r;
+
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+static int method_kill_session(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ const char *name;
+ Manager *m = ASSERT_PTR(userdata);
+ Session *session;
+ int r;
+
+ assert(message);
+
+ r = sd_bus_message_read(message, "s", &name);
+ if (r < 0)
+ return r;
+
+ r = manager_get_session_from_creds(m, message, name, error, &session);
+ if (r < 0)
+ return r;
+
+ return bus_session_method_kill(message, session, error);
+}
+
+static int method_kill_user(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *m = ASSERT_PTR(userdata);
+ uint32_t uid;
+ User *user;
+ int r;
+
+ assert(message);
+
+ r = sd_bus_message_read(message, "u", &uid);
+ if (r < 0)
+ return r;
+
+ r = manager_get_user_from_creds(m, message, uid, error, &user);
+ if (r < 0)
+ return r;
+
+ return bus_user_method_kill(message, user, error);
+}
+
+static int method_terminate_session(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *m = ASSERT_PTR(userdata);
+ const char *name;
+ Session *session;
+ int r;
+
+ assert(message);
+
+ r = sd_bus_message_read(message, "s", &name);
+ if (r < 0)
+ return r;
+
+ r = manager_get_session_from_creds(m, message, name, error, &session);
+ if (r < 0)
+ return r;
+
+ return bus_session_method_terminate(message, session, error);
+}
+
+static int method_terminate_user(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *m = ASSERT_PTR(userdata);
+ uint32_t uid;
+ User *user;
+ int r;
+
+ assert(message);
+
+ r = sd_bus_message_read(message, "u", &uid);
+ if (r < 0)
+ return r;
+
+ r = manager_get_user_from_creds(m, message, uid, error, &user);
+ if (r < 0)
+ return r;
+
+ return bus_user_method_terminate(message, user, error);
+}
+
+static int method_terminate_seat(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *m = ASSERT_PTR(userdata);
+ const char *name;
+ Seat *seat;
+ int r;
+
+ assert(message);
+
+ r = sd_bus_message_read(message, "s", &name);
+ if (r < 0)
+ return r;
+
+ r = manager_get_seat_from_creds(m, message, name, error, &seat);
+ if (r < 0)
+ return r;
+
+ return bus_seat_method_terminate(message, seat, error);
+}
+
+static int method_set_user_linger(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
+ _cleanup_free_ char *cc = NULL;
+ Manager *m = ASSERT_PTR(userdata);
+ int r, b, interactive;
+ struct passwd *pw;
+ const char *path;
+ uint32_t uid, auth_uid;
+
+ assert(message);
+
+ r = sd_bus_message_read(message, "ubb", &uid, &b, &interactive);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_EUID |
+ SD_BUS_CREDS_OWNER_UID|SD_BUS_CREDS_AUGMENT, &creds);
+ if (r < 0)
+ return r;
+
+ if (!uid_is_valid(uid)) {
+ /* Note that we get the owner UID of the session or user unit,
+ * not the actual client UID here! */
+ r = sd_bus_creds_get_owner_uid(creds, &uid);
+ if (r < 0)
+ return r;
+ }
+
+ /* owner_uid is racy, so for authorization we must use euid */
+ r = sd_bus_creds_get_euid(creds, &auth_uid);
+ if (r < 0)
+ return r;
+
+ errno = 0;
+ pw = getpwuid(uid);
+ if (!pw)
+ return errno_or_else(ENOENT);
+
+ r = bus_verify_polkit_async(
+ message,
+ CAP_SYS_ADMIN,
+ uid == auth_uid ? "org.freedesktop.login1.set-self-linger" :
+ "org.freedesktop.login1.set-user-linger",
+ NULL,
+ interactive,
+ UID_INVALID,
+ &m->polkit_registry,
+ error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
+
+ (void) mkdir_p_label("/var/lib/systemd", 0755);
+ r = mkdir_safe_label("/var/lib/systemd/linger", 0755, 0, 0, MKDIR_WARN_MODE);
+ if (r < 0)
+ return r;
+
+ cc = cescape(pw->pw_name);
+ if (!cc)
+ return -ENOMEM;
+
+ path = strjoina("/var/lib/systemd/linger/", cc);
+ if (b) {
+ User *u;
+
+ r = touch(path);
+ if (r < 0)
+ return r;
+
+ if (manager_add_user_by_uid(m, uid, &u) >= 0)
+ user_start(u);
+
+ } else {
+ User *u;
+
+ r = unlink(path);
+ if (r < 0 && errno != ENOENT)
+ return -errno;
+
+ u = hashmap_get(m->users, UID_TO_PTR(uid));
+ if (u)
+ user_add_to_gc_queue(u);
+ }
+
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+static int trigger_device(Manager *m, sd_device *d) {
+ _cleanup_(sd_device_enumerator_unrefp) sd_device_enumerator *e = NULL;
+ int r;
+
+ assert(m);
+
+ r = sd_device_enumerator_new(&e);
+ if (r < 0)
+ return r;
+
+ r = sd_device_enumerator_allow_uninitialized(e);
+ if (r < 0)
+ return r;
+
+ if (d) {
+ r = sd_device_enumerator_add_match_parent(e, d);
+ if (r < 0)
+ return r;
+ }
+
+ FOREACH_DEVICE(e, d) {
+ r = sd_device_trigger(d, SD_DEVICE_CHANGE);
+ if (r < 0)
+ log_device_debug_errno(d, r, "Failed to trigger device, ignoring: %m");
+ }
+
+ return 0;
+}
+
+static int attach_device(Manager *m, const char *seat, const char *sysfs, sd_bus_error *error) {
+ _cleanup_(sd_device_unrefp) sd_device *d = NULL;
+ _cleanup_free_ char *rule = NULL, *file = NULL;
+ const char *id_for_seat;
+ int r;
+
+ assert(m);
+ assert(seat);
+ assert(sysfs);
+
+ r = sd_device_new_from_syspath(&d, sysfs);
+ if (r < 0)
+ return sd_bus_error_set_errnof(error, r, "Failed to open device '%s': %m", sysfs);
+
+ if (sd_device_has_current_tag(d, "seat") <= 0)
+ return sd_bus_error_set_errnof(error, ENODEV, "Device '%s' lacks 'seat' udev tag.", sysfs);
+
+ if (sd_device_get_property_value(d, "ID_FOR_SEAT", &id_for_seat) < 0)
+ return sd_bus_error_set_errnof(error, ENODEV, "Device '%s' lacks 'ID_FOR_SEAT' udev property.", sysfs);
+
+ if (asprintf(&file, "/etc/udev/rules.d/72-seat-%s.rules", id_for_seat) < 0)
+ return -ENOMEM;
+
+ if (asprintf(&rule, "TAG==\"seat\", ENV{ID_FOR_SEAT}==\"%s\", ENV{ID_SEAT}=\"%s\"", id_for_seat, seat) < 0)
+ return -ENOMEM;
+
+ (void) mkdir_p_label("/etc/udev/rules.d", 0755);
+ r = write_string_file_atomic_label(file, rule);
+ if (r < 0)
+ return r;
+
+ return trigger_device(m, d);
+}
+
+static int flush_devices(Manager *m) {
+ _cleanup_closedir_ DIR *d = NULL;
+
+ assert(m);
+
+ d = opendir("/etc/udev/rules.d");
+ if (!d) {
+ if (errno != ENOENT)
+ log_warning_errno(errno, "Failed to open /etc/udev/rules.d: %m");
+ } else
+ FOREACH_DIRENT_ALL(de, d, break) {
+ if (!dirent_is_file(de))
+ continue;
+
+ if (!startswith(de->d_name, "72-seat-"))
+ continue;
+
+ if (!endswith(de->d_name, ".rules"))
+ continue;
+
+ if (unlinkat(dirfd(d), de->d_name, 0) < 0)
+ log_warning_errno(errno, "Failed to unlink %s: %m", de->d_name);
+ }
+
+ return trigger_device(m, NULL);
+}
+
+static int method_attach_device(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ const char *sysfs, *seat;
+ Manager *m = ASSERT_PTR(userdata);
+ int interactive, r;
+
+ assert(message);
+
+ r = sd_bus_message_read(message, "ssb", &seat, &sysfs, &interactive);
+ if (r < 0)
+ return r;
+
+ if (!path_is_normalized(sysfs))
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not normalized", sysfs);
+ if (!path_startswith(sysfs, "/sys"))
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not in /sys", sysfs);
+
+ if (SEAT_IS_SELF(seat) || SEAT_IS_AUTO(seat)) {
+ Seat *found;
+
+ r = manager_get_seat_from_creds(m, message, seat, error, &found);
+ if (r < 0)
+ return r;
+
+ seat = found->id;
+
+ } else if (!seat_name_is_valid(seat)) /* Note that a seat does not have to exist yet for this operation to succeed */
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Seat name %s is not valid", seat);
+
+ r = bus_verify_polkit_async(
+ message,
+ CAP_SYS_ADMIN,
+ "org.freedesktop.login1.attach-device",
+ NULL,
+ interactive,
+ UID_INVALID,
+ &m->polkit_registry,
+ error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
+
+ r = attach_device(m, seat, sysfs, error);
+ if (r < 0)
+ return r;
+
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+static int method_flush_devices(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *m = ASSERT_PTR(userdata);
+ int interactive, r;
+
+ assert(message);
+
+ r = sd_bus_message_read(message, "b", &interactive);
+ if (r < 0)
+ return r;
+
+ r = bus_verify_polkit_async(
+ message,
+ CAP_SYS_ADMIN,
+ "org.freedesktop.login1.flush-devices",
+ NULL,
+ interactive,
+ UID_INVALID,
+ &m->polkit_registry,
+ error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
+
+ r = flush_devices(m);
+ if (r < 0)
+ return r;
+
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+static int have_multiple_sessions(
+ Manager *m,
+ uid_t uid) {
+
+ Session *session;
+
+ assert(m);
+
+ /* Check for other users' sessions. Greeter sessions do not
+ * count, and non-login sessions do not count either. */
+ HASHMAP_FOREACH(session, m->sessions)
+ if (session->class == SESSION_USER &&
+ session->user->user_record->uid != uid)
+ return true;
+
+ return false;
+}
+
+static int bus_manager_log_shutdown(
+ Manager *m,
+ const HandleActionData *a) {
+ assert(m);
+ assert(a);
+
+ const char *message = a->message ?: "System is shutting down";
+ const char *log_verb = a->log_verb ? strjoina("SHUTDOWN=", a->log_verb) : NULL;
+
+ return log_struct(LOG_NOTICE,
+ "MESSAGE_ID=%s", a->message_id ?: SD_MESSAGE_SHUTDOWN_STR,
+ LOG_MESSAGE("%s%s%s%s.",
+ message,
+ m->wall_message ? " (" : "",
+ strempty(m->wall_message),
+ m->wall_message ? ")" : ""),
+ log_verb);
+}
+
+static int lid_switch_ignore_handler(sd_event_source *e, uint64_t usec, void *userdata) {
+ Manager *m = ASSERT_PTR(userdata);
+
+ assert(e);
+
+ m->lid_switch_ignore_event_source = sd_event_source_unref(m->lid_switch_ignore_event_source);
+ return 0;
+}
+
+int manager_set_lid_switch_ignore(Manager *m, usec_t until) {
+ int r;
+
+ assert(m);
+
+ if (until <= now(CLOCK_MONOTONIC))
+ return 0;
+
+ /* We want to ignore the lid switch for a while after each
+ * suspend, and after boot-up. Hence let's install a timer for
+ * this. As long as the event source exists we ignore the lid
+ * switch. */
+
+ if (m->lid_switch_ignore_event_source) {
+ usec_t u;
+
+ r = sd_event_source_get_time(m->lid_switch_ignore_event_source, &u);
+ if (r < 0)
+ return r;
+
+ if (until <= u)
+ return 0;
+
+ r = sd_event_source_set_time(m->lid_switch_ignore_event_source, until);
+ } else
+ r = sd_event_add_time(
+ m->event,
+ &m->lid_switch_ignore_event_source,
+ CLOCK_MONOTONIC,
+ until, 0,
+ lid_switch_ignore_handler, m);
+
+ return r;
+}
+
+static int send_prepare_for(Manager *m, InhibitWhat w, bool _active) {
+ int active = _active;
+
+ assert(m);
+ assert(IN_SET(w, INHIBIT_SHUTDOWN, INHIBIT_SLEEP));
+
+ return sd_bus_emit_signal(m->bus,
+ "/org/freedesktop/login1",
+ "org.freedesktop.login1.Manager",
+ w == INHIBIT_SHUTDOWN ? "PrepareForShutdown" : "PrepareForSleep",
+ "b",
+ active);
+}
+
+static int execute_shutdown_or_sleep(
+ Manager *m,
+ const HandleActionData *a,
+ sd_bus_error *error) {
+
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
+ const char *p;
+ int r;
+
+ assert(m);
+ assert(a);
+
+ if (a->inhibit_what == INHIBIT_SHUTDOWN)
+ bus_manager_log_shutdown(m, a);
+
+ r = bus_call_method(
+ m->bus,
+ bus_systemd_mgr,
+ "StartUnit",
+ error,
+ &reply,
+ "ss", a->target, "replace-irreversibly");
+ if (r < 0)
+ goto error;
+
+ r = sd_bus_message_read(reply, "o", &p);
+ if (r < 0)
+ goto error;
+
+ r = free_and_strdup(&m->action_job, p);
+ if (r < 0)
+ goto error;
+
+ m->delayed_action = a;
+
+ /* Make sure the lid switch is ignored for a while */
+ manager_set_lid_switch_ignore(m, usec_add(now(CLOCK_MONOTONIC), m->holdoff_timeout_usec));
+
+ return 0;
+
+error:
+ /* Tell people that they now may take a lock again */
+ (void) send_prepare_for(m, a->inhibit_what, false);
+
+ return r;
+}
+
+int manager_dispatch_delayed(Manager *manager, bool timeout) {
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+ Inhibitor *offending = NULL;
+ int r;
+
+ assert(manager);
+
+ if (!manager->delayed_action || manager->action_job)
+ return 0;
+
+ if (manager_is_inhibited(manager, manager->delayed_action->inhibit_what, INHIBIT_DELAY, NULL, false, false, 0, &offending)) {
+ _cleanup_free_ char *comm = NULL, *u = NULL;
+
+ if (!timeout)
+ return 0;
+
+ (void) get_process_comm(offending->pid, &comm);
+ u = uid_to_name(offending->uid);
+
+ log_notice("Delay lock is active (UID "UID_FMT"/%s, PID "PID_FMT"/%s) but inhibitor timeout is reached.",
+ offending->uid, strna(u),
+ offending->pid, strna(comm));
+ }
+
+ /* Actually do the operation */
+ r = execute_shutdown_or_sleep(manager, manager->delayed_action, &error);
+ if (r < 0) {
+ log_warning("Error during inhibitor-delayed operation (already returned success to client): %s",
+ bus_error_message(&error, r));
+
+ manager->delayed_action = NULL;
+ }
+
+ return 1; /* We did some work. */
+}
+
+static int manager_inhibit_timeout_handler(
+ sd_event_source *s,
+ uint64_t usec,
+ void *userdata) {
+
+ Manager *manager = ASSERT_PTR(userdata);
+
+ assert(manager->inhibit_timeout_source == s);
+
+ return manager_dispatch_delayed(manager, true);
+}
+
+static int delay_shutdown_or_sleep(
+ Manager *m,
+ const HandleActionData *a) {
+
+ int r;
+
+ assert(m);
+ assert(a);
+
+ if (m->inhibit_timeout_source) {
+ r = sd_event_source_set_time_relative(m->inhibit_timeout_source, m->inhibit_delay_max);
+ if (r < 0)
+ return log_error_errno(r, "sd_event_source_set_time_relative() failed: %m");
+
+ r = sd_event_source_set_enabled(m->inhibit_timeout_source, SD_EVENT_ONESHOT);
+ if (r < 0)
+ return log_error_errno(r, "sd_event_source_set_enabled() failed: %m");
+ } else {
+ r = sd_event_add_time_relative(
+ m->event,
+ &m->inhibit_timeout_source,
+ CLOCK_MONOTONIC, m->inhibit_delay_max, 0,
+ manager_inhibit_timeout_handler, m);
+ if (r < 0)
+ return r;
+ }
+
+ m->delayed_action = a;
+
+ return 0;
+}
+
+int bus_manager_shutdown_or_sleep_now_or_later(
+ Manager *m,
+ const HandleActionData *a,
+ sd_bus_error *error) {
+
+ _cleanup_free_ char *load_state = NULL;
+ bool delayed;
+ int r;
+
+ assert(m);
+ assert(a);
+ assert(!m->action_job);
+
+ r = unit_load_state(m->bus, a->target, &load_state);
+ if (r < 0)
+ return r;
+
+ if (!streq(load_state, "loaded"))
+ return log_notice_errno(SYNTHETIC_ERRNO(EACCES),
+ "Unit %s is %s, refusing operation.",
+ a->target, load_state);
+
+ /* Tell everybody to prepare for shutdown/sleep */
+ (void) send_prepare_for(m, a->inhibit_what, true);
+
+ delayed =
+ m->inhibit_delay_max > 0 &&
+ manager_is_inhibited(m, a->inhibit_what, INHIBIT_DELAY, NULL, false, false, 0, NULL);
+
+ if (delayed)
+ /* Shutdown is delayed, keep in mind what we
+ * want to do, and start a timeout */
+ r = delay_shutdown_or_sleep(m, a);
+ else
+ /* Shutdown is not delayed, execute it
+ * immediately */
+ r = execute_shutdown_or_sleep(m, a, error);
+
+ return r;
+}
+
+static int verify_shutdown_creds(
+ Manager *m,
+ sd_bus_message *message,
+ const HandleActionData *a,
+ uint64_t flags,
+ sd_bus_error *error) {
+
+ _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
+ bool multiple_sessions, blocked, interactive;
+ uid_t uid;
+ int r;
+
+ assert(m);
+ assert(a);
+ assert(message);
+
+ r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_EUID, &creds);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_creds_get_euid(creds, &uid);
+ if (r < 0)
+ return r;
+
+ r = have_multiple_sessions(m, uid);
+ if (r < 0)
+ return r;
+
+ multiple_sessions = r > 0;
+ blocked = manager_is_inhibited(m, a->inhibit_what, INHIBIT_BLOCK, NULL, false, true, uid, NULL);
+ interactive = flags & SD_LOGIND_INTERACTIVE;
+
+ if (multiple_sessions) {
+ r = bus_verify_polkit_async(
+ message,
+ CAP_SYS_BOOT,
+ a->polkit_action_multiple_sessions,
+ NULL,
+ interactive,
+ UID_INVALID,
+ &m->polkit_registry,
+ error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
+ }
+
+ if (blocked) {
+ /* We don't check polkit for root here, because you can't be more privileged than root */
+ if (uid == 0 && (flags & SD_LOGIND_ROOT_CHECK_INHIBITORS))
+ return sd_bus_error_setf(error, SD_BUS_ERROR_ACCESS_DENIED,
+ "Access denied to root due to active block inhibitor");
+
+ r = bus_verify_polkit_async(message,
+ CAP_SYS_BOOT,
+ a->polkit_action_ignore_inhibit,
+ NULL,
+ interactive,
+ UID_INVALID,
+ &m->polkit_registry,
+ error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
+ }
+
+ if (!multiple_sessions && !blocked) {
+ r = bus_verify_polkit_async(message,
+ CAP_SYS_BOOT,
+ a->polkit_action,
+ NULL,
+ interactive,
+ UID_INVALID,
+ &m->polkit_registry,
+ error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
+ }
+
+ return 0;
+}
+
+static int setup_wall_message_timer(Manager *m, sd_bus_message* message) {
+ _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
+ int r;
+
+ r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_AUGMENT|SD_BUS_CREDS_TTY|SD_BUS_CREDS_UID, &creds);
+ if (r >= 0) {
+ const char *tty = NULL;
+
+ (void) sd_bus_creds_get_uid(creds, &m->scheduled_shutdown_uid);
+ (void) sd_bus_creds_get_tty(creds, &tty);
+
+ r = free_and_strdup(&m->scheduled_shutdown_tty, tty);
+ if (r < 0)
+ return log_oom();
+ }
+
+ r = manager_setup_wall_message_timer(m);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+static int method_do_shutdown_or_sleep(
+ Manager *m,
+ sd_bus_message *message,
+ const HandleActionData *a,
+ bool with_flags,
+ sd_bus_error *error) {
+
+ uint64_t flags;
+ int r;
+
+ assert(m);
+ assert(message);
+ assert(a);
+
+ if (with_flags) {
+ /* New style method: with flags parameter (and interactive bool in the bus message header) */
+ r = sd_bus_message_read(message, "t", &flags);
+ if (r < 0)
+ return r;
+ if ((flags & ~SD_LOGIND_SHUTDOWN_AND_SLEEP_FLAGS_PUBLIC) != 0)
+ return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS,
+ "Invalid flags parameter");
+ if (a->handle != HANDLE_REBOOT && (flags & SD_LOGIND_REBOOT_VIA_KEXEC))
+ return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS,
+ "Reboot via kexec is only applicable with reboot operations");
+ } else {
+ /* Old style method: no flags parameter, but interactive bool passed as boolean in
+ * payload. Let's convert this argument to the new-style flags parameter for our internal
+ * use. */
+ int interactive;
+
+ r = sd_bus_message_read(message, "b", &interactive);
+ if (r < 0)
+ return r;
+
+ flags = interactive ? SD_LOGIND_INTERACTIVE : 0;
+ }
+
+ if ((flags & SD_LOGIND_REBOOT_VIA_KEXEC) && kexec_loaded())
+ a = handle_action_lookup(HANDLE_KEXEC);
+
+ /* Don't allow multiple jobs being executed at the same time */
+ if (m->delayed_action)
+ return sd_bus_error_setf(error, BUS_ERROR_OPERATION_IN_PROGRESS,
+ "There's already a shutdown or sleep operation in progress");
+
+ if (a->sleep_operation >= 0) {
+ r = can_sleep(a->sleep_operation);
+ if (r == -ENOSPC)
+ return sd_bus_error_set(error, BUS_ERROR_SLEEP_VERB_NOT_SUPPORTED,
+ "Not enough swap space for hibernation");
+ if (r == 0)
+ return sd_bus_error_setf(error, BUS_ERROR_SLEEP_VERB_NOT_SUPPORTED,
+ "Sleep verb \"%s\" not supported",
+ sleep_operation_to_string(a->sleep_operation));
+ if (r < 0)
+ return r;
+ }
+
+ r = verify_shutdown_creds(m, message, a, flags, error);
+ if (r != 0)
+ return r;
+
+ /* reset case we're shorting a scheduled shutdown */
+ m->unlink_nologin = false;
+ reset_scheduled_shutdown(m);
+
+ m->scheduled_shutdown_timeout = 0;
+ m->scheduled_shutdown_action = a;
+
+ (void) setup_wall_message_timer(m, message);
+
+ r = bus_manager_shutdown_or_sleep_now_or_later(m, a, error);
+ if (r < 0)
+ return r;
+
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+static int method_poweroff(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *m = userdata;
+
+ return method_do_shutdown_or_sleep(
+ m, message,
+ handle_action_lookup(HANDLE_POWEROFF),
+ sd_bus_message_is_method_call(message, NULL, "PowerOffWithFlags"),
+ error);
+}
+
+static int method_reboot(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *m = userdata;
+
+ return method_do_shutdown_or_sleep(
+ m, message,
+ handle_action_lookup(HANDLE_REBOOT),
+ sd_bus_message_is_method_call(message, NULL, "RebootWithFlags"),
+ error);
+}
+
+static int method_halt(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *m = userdata;
+
+ return method_do_shutdown_or_sleep(
+ m, message,
+ handle_action_lookup(HANDLE_HALT),
+ sd_bus_message_is_method_call(message, NULL, "HaltWithFlags"),
+ error);
+}
+
+static int method_suspend(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *m = userdata;
+
+ return method_do_shutdown_or_sleep(
+ m, message,
+ handle_action_lookup(HANDLE_SUSPEND),
+ sd_bus_message_is_method_call(message, NULL, "SuspendWithFlags"),
+ error);
+}
+
+static int method_hibernate(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *m = userdata;
+
+ return method_do_shutdown_or_sleep(
+ m, message,
+ handle_action_lookup(HANDLE_HIBERNATE),
+ sd_bus_message_is_method_call(message, NULL, "HibernateWithFlags"),
+ error);
+}
+
+static int method_hybrid_sleep(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *m = userdata;
+
+ return method_do_shutdown_or_sleep(
+ m, message,
+ handle_action_lookup(HANDLE_HYBRID_SLEEP),
+ sd_bus_message_is_method_call(message, NULL, "HybridSleepWithFlags"),
+ error);
+}
+
+static int method_suspend_then_hibernate(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *m = userdata;
+
+ return method_do_shutdown_or_sleep(
+ m, message,
+ handle_action_lookup(HANDLE_SUSPEND_THEN_HIBERNATE),
+ sd_bus_message_is_method_call(message, NULL, "SuspendThenHibernateWithFlags"),
+ error);
+}
+
+static int nologin_timeout_handler(
+ sd_event_source *s,
+ uint64_t usec,
+ void *userdata) {
+
+ Manager *m = userdata;
+
+ log_info("Creating /run/nologin, blocking further logins...");
+
+ m->unlink_nologin =
+ create_shutdown_run_nologin_or_warn() >= 0;
+
+ return 0;
+}
+
+static usec_t nologin_timeout_usec(usec_t elapse) {
+ /* Issue /run/nologin five minutes before shutdown */
+ return LESS_BY(elapse, 5 * USEC_PER_MINUTE);
+}
+
+void manager_load_scheduled_shutdown(Manager *m) {
+ _cleanup_fclose_ FILE *f = NULL;
+ _cleanup_free_ char *usec = NULL,
+ *warn_wall = NULL,
+ *mode = NULL,
+ *wall_message = NULL,
+ *uid = NULL,
+ *tty = NULL;
+ int r;
+
+ assert(m);
+
+ r = parse_env_file(f, SHUTDOWN_SCHEDULE_FILE,
+ "USEC", &usec,
+ "WARN_WALL", &warn_wall,
+ "MODE", &mode,
+ "WALL_MESSAGE", &wall_message,
+ "UID", &uid,
+ "TTY", &tty);
+
+ /* reset will delete the file */
+ reset_scheduled_shutdown(m);
+
+ if (r == -ENOENT)
+ return;
+ if (r < 0)
+ return (void) log_debug_errno(r, "Failed to parse " SHUTDOWN_SCHEDULE_FILE ": %m");
+
+ HandleAction handle = handle_action_from_string(mode);
+ if (handle < 0)
+ return (void) log_debug_errno(SYNTHETIC_ERRNO(EINVAL), "Failed to parse scheduled shutdown type: %s", mode);
+
+ if (!usec)
+ return (void) log_debug_errno(SYNTHETIC_ERRNO(EINVAL), "USEC is required");
+ if (deserialize_usec(usec, &m->scheduled_shutdown_timeout) < 0)
+ return;
+
+ /* assign parsed type only after we know usec is also valid */
+ m->scheduled_shutdown_action = handle_action_lookup(handle);
+
+ if (warn_wall) {
+ r = parse_boolean(warn_wall);
+ if (r < 0)
+ log_debug_errno(r, "Failed to parse enabling wall messages");
+ else
+ m->enable_wall_messages = r;
+ }
+
+ if (wall_message) {
+ _cleanup_free_ char *unescaped = NULL;
+ r = cunescape(wall_message, 0, &unescaped);
+ if (r < 0)
+ log_debug_errno(r, "Failed to parse wall message: %s", wall_message);
+ else
+ free_and_replace(m->wall_message, unescaped);
+ }
+
+ if (uid) {
+ r = parse_uid(uid, &m->scheduled_shutdown_uid);
+ if (r < 0)
+ log_debug_errno(r, "Failed to parse wall uid: %s", uid);
+ }
+
+ free_and_replace(m->scheduled_shutdown_tty, tty);
+
+ r = manager_setup_shutdown_timers(m);
+ if (r < 0)
+ return reset_scheduled_shutdown(m);
+
+ (void) manager_setup_wall_message_timer(m);
+ (void) update_schedule_file(m);
+
+ return;
+}
+
+static int update_schedule_file(Manager *m) {
+ _cleanup_free_ char *temp_path = NULL;
+ _cleanup_fclose_ FILE *f = NULL;
+ int r;
+
+ assert(m);
+ assert(m->scheduled_shutdown_action);
+
+ r = mkdir_parents_label(SHUTDOWN_SCHEDULE_FILE, 0755);
+ if (r < 0)
+ return log_error_errno(r, "Failed to create shutdown subdirectory: %m");
+
+ r = fopen_temporary(SHUTDOWN_SCHEDULE_FILE, &f, &temp_path);
+ if (r < 0)
+ return log_error_errno(r, "Failed to save information about scheduled shutdowns: %m");
+
+ (void) fchmod(fileno(f), 0644);
+
+ serialize_usec(f, "USEC", m->scheduled_shutdown_timeout);
+ serialize_item_format(f, "WARN_WALL", "%s", one_zero(m->enable_wall_messages));
+ serialize_item_format(f, "MODE", "%s", handle_action_to_string(m->scheduled_shutdown_action->handle));
+ serialize_item_format(f, "UID", UID_FMT, m->scheduled_shutdown_uid);
+
+ if (m->scheduled_shutdown_tty)
+ serialize_item_format(f, "TTY", "%s", m->scheduled_shutdown_tty);
+
+ if (!isempty(m->wall_message)) {
+ r = serialize_item_escaped(f, "WALL_MESSAGE", m->wall_message);
+ if (r < 0)
+ goto fail;
+ }
+
+ r = fflush_and_check(f);
+ if (r < 0)
+ goto fail;
+
+ if (rename(temp_path, SHUTDOWN_SCHEDULE_FILE) < 0) {
+ r = -errno;
+ goto fail;
+ }
+
+ return 0;
+
+fail:
+ (void) unlink(temp_path);
+ (void) unlink(SHUTDOWN_SCHEDULE_FILE);
+
+ return log_error_errno(r, "Failed to write information about scheduled shutdowns: %m");
+}
+
+static void reset_scheduled_shutdown(Manager *m) {
+ assert(m);
+
+ m->scheduled_shutdown_timeout_source = sd_event_source_unref(m->scheduled_shutdown_timeout_source);
+ m->wall_message_timeout_source = sd_event_source_unref(m->wall_message_timeout_source);
+ m->nologin_timeout_source = sd_event_source_unref(m->nologin_timeout_source);
+
+ m->scheduled_shutdown_action = NULL;
+ m->scheduled_shutdown_timeout = USEC_INFINITY;
+ m->scheduled_shutdown_uid = UID_INVALID;
+ m->scheduled_shutdown_tty = mfree(m->scheduled_shutdown_tty);
+ m->shutdown_dry_run = false;
+
+ if (m->unlink_nologin) {
+ (void) unlink_or_warn("/run/nologin");
+ m->unlink_nologin = false;
+ }
+
+ (void) unlink(SHUTDOWN_SCHEDULE_FILE);
+}
+
+static int manager_scheduled_shutdown_handler(
+ sd_event_source *s,
+ uint64_t usec,
+ void *userdata) {
+
+ const HandleActionData *a = NULL;
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+ Manager *m = ASSERT_PTR(userdata);
+ int r;
+
+ a = m->scheduled_shutdown_action;
+ assert(a);
+
+ /* Don't allow multiple jobs being executed at the same time */
+ if (m->delayed_action) {
+ r = -EALREADY;
+ log_error("Scheduled shutdown to %s failed: shutdown or sleep operation already in progress", a->target);
+ goto error;
+ }
+
+ if (m->shutdown_dry_run) {
+ /* We do not process delay inhibitors here. Otherwise, we
+ * would have to be considered "in progress" (like the check
+ * above) for some seconds after our admin has seen the final
+ * wall message. */
+
+ bus_manager_log_shutdown(m, a);
+ log_info("Running in dry run, suppressing action.");
+ reset_scheduled_shutdown(m);
+
+ return 0;
+ }
+
+ r = bus_manager_shutdown_or_sleep_now_or_later(m, m->scheduled_shutdown_action, &error);
+ if (r < 0) {
+ log_error_errno(r, "Scheduled shutdown to %s failed: %m", a->target);
+ goto error;
+ }
+
+ return 0;
+
+error:
+ reset_scheduled_shutdown(m);
+ return r;
+}
+
+static int method_schedule_shutdown(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *m = ASSERT_PTR(userdata);
+ HandleAction handle;
+ const HandleActionData *a;
+ uint64_t elapse;
+ char *type;
+ int r;
+ bool dry_run = false;
+
+ assert(message);
+
+ r = sd_bus_message_read(message, "st", &type, &elapse);
+ if (r < 0)
+ return r;
+
+ if (startswith(type, "dry-")) {
+ type += 4;
+ dry_run = true;
+ }
+
+ handle = handle_action_from_string(type);
+ if (!IN_SET(handle, HANDLE_POWEROFF, HANDLE_REBOOT, HANDLE_HALT, HANDLE_KEXEC))
+ return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Unsupported shutdown type");
+
+ a = handle_action_lookup(handle);
+ assert(a);
+ assert(a->polkit_action);
+
+ r = verify_shutdown_creds(m, message, a, 0, error);
+ if (r != 0)
+ return r;
+
+ m->scheduled_shutdown_action = a;
+ m->shutdown_dry_run = dry_run;
+ m->scheduled_shutdown_timeout = elapse;
+
+ r = manager_setup_shutdown_timers(m);
+ if (r < 0)
+ return r;
+
+ r = setup_wall_message_timer(m, message);
+ if (r >= 0)
+ r = update_schedule_file(m);
+
+ if (r < 0) {
+ reset_scheduled_shutdown(m);
+ return r;
+ }
+
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+static int manager_setup_shutdown_timers(Manager* m) {
+ int r;
+
+ r = event_reset_time(m->event, &m->scheduled_shutdown_timeout_source,
+ CLOCK_REALTIME,
+ m->scheduled_shutdown_timeout, 0,
+ manager_scheduled_shutdown_handler, m,
+ 0, "scheduled-shutdown-timeout", true);
+ if (r < 0)
+ goto fail;
+
+ r = event_reset_time(m->event, &m->nologin_timeout_source,
+ CLOCK_REALTIME,
+ nologin_timeout_usec(m->scheduled_shutdown_timeout), 0,
+ nologin_timeout_handler, m,
+ 0, "nologin-timeout", true);
+ if (r < 0)
+ goto fail;
+
+ return 0;
+
+fail:
+ m->scheduled_shutdown_timeout_source = sd_event_source_unref(m->scheduled_shutdown_timeout_source);
+ m->nologin_timeout_source = sd_event_source_unref(m->nologin_timeout_source);
+
+ return r;
+}
+
+static int method_cancel_scheduled_shutdown(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *m = ASSERT_PTR(userdata);
+ const HandleActionData *a;
+ bool cancelled;
+ int r;
+
+ assert(message);
+
+ cancelled = m->scheduled_shutdown_action
+ && !IN_SET(m->scheduled_shutdown_action->handle, HANDLE_IGNORE, _HANDLE_ACTION_INVALID);
+ if (!cancelled)
+ return sd_bus_reply_method_return(message, "b", false);
+
+ a = m->scheduled_shutdown_action;
+ if (!a->polkit_action)
+ return sd_bus_error_set(error, SD_BUS_ERROR_AUTH_FAILED, "Unsupported shutdown type");
+
+ r = bus_verify_polkit_async(
+ message,
+ CAP_SYS_BOOT,
+ a->polkit_action,
+ NULL,
+ false,
+ UID_INVALID,
+ &m->polkit_registry,
+ error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
+
+ if (m->enable_wall_messages) {
+ _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
+ const char *tty = NULL;
+ uid_t uid = 0;
+
+ r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_AUGMENT|SD_BUS_CREDS_TTY|SD_BUS_CREDS_UID, &creds);
+ if (r >= 0) {
+ (void) sd_bus_creds_get_uid(creds, &uid);
+ (void) sd_bus_creds_get_tty(creds, &tty);
+ }
+
+ _cleanup_free_ char *username = uid_to_name(uid);
+
+ log_struct(LOG_INFO,
+ LOG_MESSAGE("System shutdown has been cancelled"),
+ "ACTION=%s", handle_action_to_string(a->handle),
+ "MESSAGE_ID=" SD_MESSAGE_SHUTDOWN_CANCELED_STR,
+ username ? "OPERATOR=%s" : NULL, username);
+
+ utmp_wall("System shutdown has been cancelled",
+ username, tty, logind_wall_tty_filter, m);
+ }
+
+ reset_scheduled_shutdown(m);
+
+ return sd_bus_reply_method_return(message, "b", true);
+}
+
+static int method_can_shutdown_or_sleep(
+ Manager *m,
+ sd_bus_message *message,
+ const HandleActionData *a,
+ sd_bus_error *error) {
+
+ _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
+ bool multiple_sessions, challenge, blocked;
+ const char *result = NULL;
+ uid_t uid;
+ int r;
+
+ assert(m);
+ assert(message);
+ assert(a);
+
+ if (a->sleep_operation >= 0) {
+ r = can_sleep(a->sleep_operation);
+ if (IN_SET(r, 0, -ENOSPC))
+ return sd_bus_reply_method_return(message, "s", "na");
+ if (r < 0)
+ return r;
+ }
+
+ r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_EUID, &creds);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_creds_get_euid(creds, &uid);
+ if (r < 0)
+ return r;
+
+ r = have_multiple_sessions(m, uid);
+ if (r < 0)
+ return r;
+
+ multiple_sessions = r > 0;
+ blocked = manager_is_inhibited(m, a->inhibit_what, INHIBIT_BLOCK, NULL, false, true, uid, NULL);
+
+ HandleAction handle = handle_action_from_string(sleep_operation_to_string(a->sleep_operation));
+ if (handle >= 0) {
+ const char *target;
+
+ target = handle_action_lookup(handle)->target;
+ if (target) {
+ _cleanup_free_ char *load_state = NULL;
+
+ r = unit_load_state(m->bus, target, &load_state);
+ if (r < 0)
+ return r;
+
+ if (!streq(load_state, "loaded")) {
+ result = "no";
+ goto finish;
+ }
+ }
+ }
+
+ if (multiple_sessions) {
+ r = bus_test_polkit(message, CAP_SYS_BOOT, a->polkit_action_multiple_sessions, NULL, UID_INVALID, &challenge, error);
+ if (r < 0)
+ return r;
+
+ if (r > 0)
+ result = "yes";
+ else if (challenge)
+ result = "challenge";
+ else
+ result = "no";
+ }
+
+ if (blocked) {
+ r = bus_test_polkit(message, CAP_SYS_BOOT, a->polkit_action_ignore_inhibit, NULL, UID_INVALID, &challenge, error);
+ if (r < 0)
+ return r;
+
+ if (r > 0) {
+ if (!result)
+ result = "yes";
+ } else if (challenge) {
+ if (!result || streq(result, "yes"))
+ result = "challenge";
+ } else
+ result = "no";
+ }
+
+ if (!multiple_sessions && !blocked) {
+ /* If neither inhibit nor multiple sessions
+ * apply then just check the normal policy */
+
+ r = bus_test_polkit(message, CAP_SYS_BOOT, a->polkit_action, NULL, UID_INVALID, &challenge, error);
+ if (r < 0)
+ return r;
+
+ if (r > 0)
+ result = "yes";
+ else if (challenge)
+ result = "challenge";
+ else
+ result = "no";
+ }
+
+ finish:
+ return sd_bus_reply_method_return(message, "s", result);
+}
+
+static int method_can_poweroff(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *m = userdata;
+
+ return method_can_shutdown_or_sleep(
+ m, message, handle_action_lookup(HANDLE_POWEROFF),
+ error);
+}
+
+static int method_can_reboot(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *m = userdata;
+
+ return method_can_shutdown_or_sleep(
+ m, message, handle_action_lookup(HANDLE_REBOOT),
+ error);
+}
+
+static int method_can_halt(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *m = userdata;
+
+ return method_can_shutdown_or_sleep(
+ m, message, handle_action_lookup(HANDLE_HALT),
+ error);
+}
+
+static int method_can_suspend(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *m = userdata;
+
+ return method_can_shutdown_or_sleep(
+ m, message, handle_action_lookup(HANDLE_SUSPEND),
+ error);
+}
+
+static int method_can_hibernate(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *m = userdata;
+
+ return method_can_shutdown_or_sleep(
+ m, message, handle_action_lookup(HANDLE_HIBERNATE),
+ error);
+}
+
+static int method_can_hybrid_sleep(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *m = userdata;
+
+ return method_can_shutdown_or_sleep(
+ m, message, handle_action_lookup(HANDLE_HYBRID_SLEEP),
+ error);
+}
+
+static int method_can_suspend_then_hibernate(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *m = userdata;
+
+ return method_can_shutdown_or_sleep(
+ m, message, handle_action_lookup(HANDLE_SUSPEND_THEN_HIBERNATE),
+ error);
+}
+
+static int property_get_reboot_parameter(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
+ _cleanup_free_ char *parameter = NULL;
+ int r;
+
+ assert(bus);
+ assert(reply);
+ assert(userdata);
+
+ r = read_reboot_parameter(&parameter);
+ if (r < 0)
+ return r;
+
+ return sd_bus_message_append(reply, "s", parameter);
+}
+
+static int method_set_reboot_parameter(
+ sd_bus_message *message,
+ void *userdata,
+ sd_bus_error *error) {
+
+ Manager *m = ASSERT_PTR(userdata);
+ const char *arg;
+ int r;
+
+ assert(message);
+
+ r = sd_bus_message_read(message, "s", &arg);
+ if (r < 0)
+ return r;
+
+ r = detect_container();
+ if (r < 0)
+ return r;
+ if (r > 0)
+ return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED,
+ "Reboot parameter not supported in containers, refusing.");
+
+ r = bus_verify_polkit_async(message,
+ CAP_SYS_ADMIN,
+ "org.freedesktop.login1.set-reboot-parameter",
+ NULL,
+ false,
+ UID_INVALID,
+ &m->polkit_registry,
+ error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
+
+ r = update_reboot_parameter_and_warn(arg, false);
+ if (r < 0)
+ return r;
+
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+static int method_can_reboot_parameter(
+ sd_bus_message *message,
+ void *userdata,
+ sd_bus_error *error) {
+
+ _unused_ Manager *m = ASSERT_PTR(userdata);
+ int r;
+
+ assert(message);
+
+ r = detect_container();
+ if (r < 0)
+ return r;
+ if (r > 0) /* Inside containers, specifying a reboot parameter, doesn't make much sense */
+ return sd_bus_reply_method_return(message, "s", "na");
+
+ return return_test_polkit(
+ message,
+ CAP_SYS_ADMIN,
+ "org.freedesktop.login1.set-reboot-parameter",
+ NULL,
+ UID_INVALID,
+ error);
+}
+
+static int property_get_reboot_to_firmware_setup(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
+ int r;
+
+ assert(bus);
+ assert(reply);
+ assert(userdata);
+
+ r = getenv_bool("SYSTEMD_REBOOT_TO_FIRMWARE_SETUP");
+ if (r == -ENXIO) {
+ /* EFI case: let's see what is currently configured in the EFI variables */
+ r = efi_get_reboot_to_firmware();
+ if (r < 0 && r != -EOPNOTSUPP)
+ log_warning_errno(r, "Failed to determine reboot-to-firmware-setup state: %m");
+ } else if (r < 0)
+ log_warning_errno(r, "Failed to parse $SYSTEMD_REBOOT_TO_FIRMWARE_SETUP: %m");
+ else if (r > 0) {
+ /* Non-EFI case: let's see whether /run/systemd/reboot-to-firmware-setup exists. */
+ if (access("/run/systemd/reboot-to-firmware-setup", F_OK) < 0) {
+ if (errno != ENOENT)
+ log_warning_errno(errno, "Failed to check whether /run/systemd/reboot-to-firmware-setup exists: %m");
+
+ r = false;
+ } else
+ r = true;
+ }
+
+ return sd_bus_message_append(reply, "b", r > 0);
+}
+
+static int method_set_reboot_to_firmware_setup(
+ sd_bus_message *message,
+ void *userdata,
+ sd_bus_error *error) {
+
+ Manager *m = ASSERT_PTR(userdata);
+ bool use_efi;
+ int b, r;
+
+ assert(message);
+
+ r = sd_bus_message_read(message, "b", &b);
+ if (r < 0)
+ return r;
+
+ r = getenv_bool("SYSTEMD_REBOOT_TO_FIRMWARE_SETUP");
+ if (r == -ENXIO) {
+ /* EFI case: let's see what the firmware supports */
+
+ r = efi_reboot_to_firmware_supported();
+ if (r == -EOPNOTSUPP)
+ return sd_bus_error_set(error, SD_BUS_ERROR_NOT_SUPPORTED, "Firmware does not support boot into firmware.");
+ if (r < 0)
+ return r;
+
+ use_efi = true;
+
+ } else if (r <= 0) {
+ /* non-EFI case: $SYSTEMD_REBOOT_TO_FIRMWARE_SETUP is set to off */
+
+ if (r < 0)
+ log_warning_errno(r, "Failed to parse $SYSTEMD_REBOOT_TO_FIRMWARE_SETUP: %m");
+
+ return sd_bus_error_set(error, SD_BUS_ERROR_NOT_SUPPORTED, "Firmware does not support boot into firmware.");
+ } else
+ /* non-EFI case: $SYSTEMD_REBOOT_TO_FIRMWARE_SETUP is set to on */
+ use_efi = false;
+
+ r = bus_verify_polkit_async(message,
+ CAP_SYS_ADMIN,
+ "org.freedesktop.login1.set-reboot-to-firmware-setup",
+ NULL,
+ false,
+ UID_INVALID,
+ &m->polkit_registry,
+ error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
+
+ if (use_efi) {
+ r = efi_set_reboot_to_firmware(b);
+ if (r < 0)
+ return r;
+ } else {
+ if (b) {
+ r = touch("/run/systemd/reboot-to-firmware-setup");
+ if (r < 0)
+ return r;
+ } else {
+ if (unlink("/run/systemd/reboot-to-firmware-setup") < 0 && errno != ENOENT)
+ return -errno;
+ }
+ }
+
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+static int method_can_reboot_to_firmware_setup(
+ sd_bus_message *message,
+ void *userdata,
+ sd_bus_error *error) {
+
+ _unused_ Manager *m = ASSERT_PTR(userdata);
+ int r;
+
+ assert(message);
+
+ r = getenv_bool("SYSTEMD_REBOOT_TO_FIRMWARE_SETUP");
+ if (r == -ENXIO) {
+ /* EFI case: let's see what the firmware supports */
+
+ r = efi_reboot_to_firmware_supported();
+ if (r < 0) {
+ if (r != -EOPNOTSUPP)
+ log_warning_errno(r, "Failed to determine whether reboot to firmware is supported: %m");
+
+ return sd_bus_reply_method_return(message, "s", "na");
+ }
+
+ } else if (r <= 0) {
+ /* Non-EFI case: let's trust $SYSTEMD_REBOOT_TO_FIRMWARE_SETUP */
+
+ if (r < 0)
+ log_warning_errno(r, "Failed to parse $SYSTEMD_REBOOT_TO_FIRMWARE_SETUP: %m");
+
+ return sd_bus_reply_method_return(message, "s", "na");
+ }
+
+ return return_test_polkit(
+ message,
+ CAP_SYS_ADMIN,
+ "org.freedesktop.login1.set-reboot-to-firmware-setup",
+ NULL,
+ UID_INVALID,
+ error);
+}
+
+static int property_get_reboot_to_boot_loader_menu(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
+
+ uint64_t x = UINT64_MAX;
+ int r;
+
+ assert(bus);
+ assert(reply);
+ assert(userdata);
+
+ r = getenv_bool("SYSTEMD_REBOOT_TO_BOOT_LOADER_MENU");
+ if (r == -ENXIO) {
+ /* EFI case: returns the current value of LoaderConfigTimeoutOneShot. Three cases are distinguished:
+ *
+ * 1. Variable not set, boot into boot loader menu is not enabled (we return UINT64_MAX to the user)
+ * 2. Variable set to "0", boot into boot loader menu is enabled with no timeout (we return 0 to the user)
+ * 3. Variable set to numeric value formatted in ASCII, boot into boot loader menu with the specified timeout in seconds
+ */
+
+ r = efi_loader_get_config_timeout_one_shot(&x);
+ if (r < 0) {
+ if (r != -ENOENT)
+ log_warning_errno(r, "Failed to read LoaderConfigTimeoutOneShot variable, ignoring: %m");
+ }
+
+ } else if (r < 0)
+ log_warning_errno(r, "Failed to parse $SYSTEMD_REBOOT_TO_BOOT_LOADER_MENU: %m");
+ else if (r > 0) {
+ _cleanup_free_ char *v = NULL;
+
+ /* Non-EFI case, let's process /run/systemd/reboot-to-boot-loader-menu. */
+
+ r = read_one_line_file("/run/systemd/reboot-to-boot-loader-menu", &v);
+ if (r < 0) {
+ if (r != -ENOENT)
+ log_warning_errno(r, "Failed to read /run/systemd/reboot-to-boot-loader-menu: %m");
+ } else {
+ r = safe_atou64(v, &x);
+ if (r < 0)
+ log_warning_errno(r, "Failed to parse /run/systemd/reboot-to-boot-loader-menu: %m");
+ }
+ }
+
+ return sd_bus_message_append(reply, "t", x);
+}
+
+static int method_set_reboot_to_boot_loader_menu(
+ sd_bus_message *message,
+ void *userdata,
+ sd_bus_error *error) {
+
+ Manager *m = ASSERT_PTR(userdata);
+ bool use_efi;
+ uint64_t x;
+ int r;
+
+ assert(message);
+
+ r = sd_bus_message_read(message, "t", &x);
+ if (r < 0)
+ return r;
+
+ r = getenv_bool("SYSTEMD_REBOOT_TO_BOOT_LOADER_MENU");
+ if (r == -ENXIO) {
+ uint64_t features;
+
+ /* EFI case: let's see if booting into boot loader menu is supported. */
+
+ r = efi_loader_get_features(&features);
+ if (r < 0)
+ log_warning_errno(r, "Failed to determine whether reboot to boot loader menu is supported: %m");
+ if (r < 0 || !FLAGS_SET(features, EFI_LOADER_FEATURE_CONFIG_TIMEOUT_ONE_SHOT))
+ return sd_bus_error_set(error, SD_BUS_ERROR_NOT_SUPPORTED, "Boot loader does not support boot into boot loader menu.");
+
+ use_efi = true;
+
+ } else if (r <= 0) {
+ /* non-EFI case: $SYSTEMD_REBOOT_TO_BOOT_LOADER_MENU is set to off */
+
+ if (r < 0)
+ log_warning_errno(r, "Failed to parse $SYSTEMD_REBOOT_TO_BOOT_LOADER_MENU: %m");
+
+ return sd_bus_error_set(error, SD_BUS_ERROR_NOT_SUPPORTED, "Boot loader does not support boot into boot loader menu.");
+ } else
+ /* non-EFI case: $SYSTEMD_REBOOT_TO_BOOT_LOADER_MENU is set to on */
+ use_efi = false;
+
+ r = bus_verify_polkit_async(message,
+ CAP_SYS_ADMIN,
+ "org.freedesktop.login1.set-reboot-to-boot-loader-menu",
+ NULL,
+ false,
+ UID_INVALID,
+ &m->polkit_registry,
+ error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
+
+ if (use_efi) {
+ if (x == UINT64_MAX)
+ r = efi_set_variable(EFI_LOADER_VARIABLE(LoaderConfigTimeoutOneShot), NULL, 0);
+ else {
+ char buf[DECIMAL_STR_MAX(uint64_t) + 1];
+ xsprintf(buf, "%" PRIu64, DIV_ROUND_UP(x, USEC_PER_SEC)); /* second granularity */
+
+ r = efi_set_variable_string(EFI_LOADER_VARIABLE(LoaderConfigTimeoutOneShot), buf);
+ }
+ if (r < 0)
+ return r;
+ } else {
+ if (x == UINT64_MAX) {
+ if (unlink("/run/systemd/reboot-to-boot-loader-menu") < 0 && errno != ENOENT)
+ return -errno;
+ } else {
+ char buf[DECIMAL_STR_MAX(uint64_t) + 1];
+
+ xsprintf(buf, "%" PRIu64, x); /* µs granularity */
+
+ r = write_string_file_atomic_label("/run/systemd/reboot-to-boot-loader-menu", buf);
+ if (r < 0)
+ return r;
+ }
+ }
+
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+static int method_can_reboot_to_boot_loader_menu(
+ sd_bus_message *message,
+ void *userdata,
+ sd_bus_error *error) {
+
+ _unused_ Manager *m = ASSERT_PTR(userdata);
+ int r;
+
+ assert(message);
+
+ r = getenv_bool("SYSTEMD_REBOOT_TO_BOOT_LOADER_MENU");
+ if (r == -ENXIO) {
+ uint64_t features = 0;
+
+ /* EFI case, let's see if booting into boot loader menu is supported. */
+
+ r = efi_loader_get_features(&features);
+ if (r < 0)
+ log_warning_errno(r, "Failed to determine whether reboot to boot loader menu is supported: %m");
+ if (r < 0 || !FLAGS_SET(features, EFI_LOADER_FEATURE_CONFIG_TIMEOUT_ONE_SHOT))
+ return sd_bus_reply_method_return(message, "s", "na");
+
+ } else if (r <= 0) {
+ /* Non-EFI case: let's trust $SYSTEMD_REBOOT_TO_BOOT_LOADER_MENU */
+
+ if (r < 0)
+ log_warning_errno(r, "Failed to parse $SYSTEMD_REBOOT_TO_BOOT_LOADER_MENU: %m");
+
+ return sd_bus_reply_method_return(message, "s", "na");
+ }
+
+ return return_test_polkit(
+ message,
+ CAP_SYS_ADMIN,
+ "org.freedesktop.login1.set-reboot-to-boot-loader-menu",
+ NULL,
+ UID_INVALID,
+ error);
+}
+
+static int property_get_reboot_to_boot_loader_entry(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
+
+ _cleanup_free_ char *v = NULL;
+ Manager *m = ASSERT_PTR(userdata);
+ const char *x = NULL;
+ int r;
+
+ assert(bus);
+ assert(reply);
+
+ r = getenv_bool("SYSTEMD_REBOOT_TO_BOOT_LOADER_ENTRY");
+ if (r == -ENXIO) {
+ /* EFI case: let's read the LoaderEntryOneShot variable */
+
+ r = efi_loader_update_entry_one_shot_cache(&m->efi_loader_entry_one_shot, &m->efi_loader_entry_one_shot_stat);
+ if (r < 0) {
+ if (r != -ENOENT)
+ log_warning_errno(r, "Failed to read LoaderEntryOneShot variable, ignoring: %m");
+ } else
+ x = m->efi_loader_entry_one_shot;
+
+ } else if (r < 0)
+ log_warning_errno(r, "Failed to parse $SYSTEMD_REBOOT_TO_BOOT_LOADER_ENTRY: %m");
+ else if (r > 0) {
+
+ /* Non-EFI case, let's process /run/systemd/reboot-to-boot-loader-entry. */
+
+ r = read_one_line_file("/run/systemd/reboot-to-boot-loader-entry", &v);
+ if (r < 0) {
+ if (r != -ENOENT)
+ log_warning_errno(r, "Failed to read /run/systemd/reboot-to-boot-loader-entry, ignoring: %m");
+ } else if (!efi_loader_entry_name_valid(v))
+ log_warning("/run/systemd/reboot-to-boot-loader-entry is not valid, ignoring.");
+ else
+ x = v;
+ }
+
+ return sd_bus_message_append(reply, "s", x);
+}
+
+static int boot_loader_entry_exists(Manager *m, const char *id) {
+ _cleanup_(boot_config_free) BootConfig config = BOOT_CONFIG_NULL;
+ int r;
+
+ assert(m);
+ assert(id);
+
+ r = boot_config_load_auto(&config, NULL, NULL);
+ if (r < 0 && r != -ENOKEY) /* don't complain if no GPT is found, hence skip ENOKEY */
+ return r;
+
+ r = manager_read_efi_boot_loader_entries(m);
+ if (r >= 0)
+ (void) boot_config_augment_from_loader(&config, m->efi_boot_loader_entries, /* auto_only= */ true);
+
+ return !!boot_config_find_entry(&config, id);
+}
+
+static int method_set_reboot_to_boot_loader_entry(
+ sd_bus_message *message,
+ void *userdata,
+ sd_bus_error *error) {
+
+ Manager *m = ASSERT_PTR(userdata);
+ bool use_efi;
+ const char *v;
+ int r;
+
+ assert(message);
+
+ r = sd_bus_message_read(message, "s", &v);
+ if (r < 0)
+ return r;
+
+ if (isempty(v))
+ v = NULL;
+ else if (efi_loader_entry_name_valid(v)) {
+ r = boot_loader_entry_exists(m, v);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Boot loader entry '%s' is not known.", v);
+ } else
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Boot loader entry name '%s' is not valid, refusing.", v);
+
+ r = getenv_bool("SYSTEMD_REBOOT_TO_BOOT_LOADER_ENTRY");
+ if (r == -ENXIO) {
+ uint64_t features;
+
+ /* EFI case: let's see if booting into boot loader entry is supported. */
+
+ r = efi_loader_get_features(&features);
+ if (r < 0)
+ log_warning_errno(r, "Failed to determine whether reboot into boot loader entry is supported: %m");
+ if (r < 0 || !FLAGS_SET(features, EFI_LOADER_FEATURE_ENTRY_ONESHOT))
+ return sd_bus_error_set(error, SD_BUS_ERROR_NOT_SUPPORTED, "Loader does not support boot into boot loader entry.");
+
+ use_efi = true;
+
+ } else if (r <= 0) {
+ /* non-EFI case: $SYSTEMD_REBOOT_TO_BOOT_LOADER_ENTRY is set to off */
+
+ if (r < 0)
+ log_warning_errno(r, "Failed to parse $SYSTEMD_REBOOT_TO_BOOT_LOADER_ENTRY: %m");
+
+ return sd_bus_error_set(error, SD_BUS_ERROR_NOT_SUPPORTED, "Loader does not support boot into boot loader entry.");
+ } else
+ /* non-EFI case: $SYSTEMD_REBOOT_TO_BOOT_LOADER_ENTRY is set to on */
+ use_efi = false;
+
+ r = bus_verify_polkit_async(message,
+ CAP_SYS_ADMIN,
+ "org.freedesktop.login1.set-reboot-to-boot-loader-entry",
+ NULL,
+ false,
+ UID_INVALID,
+ &m->polkit_registry,
+ error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
+
+ if (use_efi) {
+ if (isempty(v))
+ /* Delete item */
+ r = efi_set_variable(EFI_LOADER_VARIABLE(LoaderEntryOneShot), NULL, 0);
+ else
+ r = efi_set_variable_string(EFI_LOADER_VARIABLE(LoaderEntryOneShot), v);
+ if (r < 0)
+ return r;
+ } else {
+ if (isempty(v)) {
+ if (unlink("/run/systemd/reboot-to-boot-loader-entry") < 0 && errno != ENOENT)
+ return -errno;
+ } else {
+ r = write_string_file_atomic_label("/run/systemd/reboot-boot-to-loader-entry", v);
+ if (r < 0)
+ return r;
+ }
+ }
+
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+static int method_can_reboot_to_boot_loader_entry(
+ sd_bus_message *message,
+ void *userdata,
+ sd_bus_error *error) {
+
+ _unused_ Manager *m = ASSERT_PTR(userdata);
+ int r;
+
+ assert(message);
+
+ r = getenv_bool("SYSTEMD_REBOOT_TO_BOOT_LOADER_ENTRY");
+ if (r == -ENXIO) {
+ uint64_t features = 0;
+
+ /* EFI case, let's see if booting into boot loader entry is supported. */
+
+ r = efi_loader_get_features(&features);
+ if (r < 0)
+ log_warning_errno(r, "Failed to determine whether reboot to boot loader entry is supported: %m");
+ if (r < 0 || !FLAGS_SET(features, EFI_LOADER_FEATURE_ENTRY_ONESHOT))
+ return sd_bus_reply_method_return(message, "s", "na");
+
+ } else if (r <= 0) {
+ /* Non-EFI case: let's trust $SYSTEMD_REBOOT_TO_BOOT_LOADER_ENTRY */
+
+ if (r < 0)
+ log_warning_errno(r, "Failed to parse $SYSTEMD_REBOOT_TO_BOOT_LOADER_ENTRY: %m");
+
+ return sd_bus_reply_method_return(message, "s", "na");
+ }
+
+ return return_test_polkit(
+ message,
+ CAP_SYS_ADMIN,
+ "org.freedesktop.login1.set-reboot-to-boot-loader-entry",
+ NULL,
+ UID_INVALID,
+ error);
+}
+
+static int property_get_boot_loader_entries(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
+
+ _cleanup_(boot_config_free) BootConfig config = BOOT_CONFIG_NULL;
+ Manager *m = ASSERT_PTR(userdata);
+ size_t i;
+ int r;
+
+ assert(bus);
+ assert(reply);
+
+ r = boot_config_load_auto(&config, NULL, NULL);
+ if (r < 0 && r != -ENOKEY) /* don't complain if there's no GPT found */
+ return r;
+
+ r = manager_read_efi_boot_loader_entries(m);
+ if (r >= 0)
+ (void) boot_config_augment_from_loader(&config, m->efi_boot_loader_entries, /* auto_only= */ true);
+
+ r = sd_bus_message_open_container(reply, 'a', "s");
+ if (r < 0)
+ return r;
+
+ for (i = 0; i < config.n_entries; i++) {
+ BootEntry *e = config.entries + i;
+
+ r = sd_bus_message_append(reply, "s", e->id);
+ if (r < 0)
+ return r;
+ }
+
+ return sd_bus_message_close_container(reply);
+}
+
+static int method_set_wall_message(
+ sd_bus_message *message,
+ void *userdata,
+ sd_bus_error *error) {
+
+ int r;
+ Manager *m = ASSERT_PTR(userdata);
+ char *wall_message;
+ int enable_wall_messages;
+
+ assert(message);
+
+ r = sd_bus_message_read(message, "sb", &wall_message, &enable_wall_messages);
+ if (r < 0)
+ return r;
+
+ if (strlen(wall_message) > WALL_MESSAGE_MAX)
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
+ "Wall message too long, maximum permitted length is %u characters.",
+ WALL_MESSAGE_MAX);
+
+ /* Short-circuit the operation if the desired state is already in place, to
+ * avoid an unnecessary polkit permission check. */
+ if (streq_ptr(m->wall_message, empty_to_null(wall_message)) &&
+ m->enable_wall_messages == enable_wall_messages)
+ goto done;
+
+ r = bus_verify_polkit_async(message,
+ CAP_SYS_ADMIN,
+ "org.freedesktop.login1.set-wall-message",
+ NULL,
+ false,
+ UID_INVALID,
+ &m->polkit_registry,
+ error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* Will call us back */
+
+ r = free_and_strdup(&m->wall_message, empty_to_null(wall_message));
+ if (r < 0)
+ return log_oom();
+
+ m->enable_wall_messages = enable_wall_messages;
+
+ done:
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+static int method_inhibit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
+ const char *who, *why, *what, *mode;
+ _cleanup_free_ char *id = NULL;
+ _cleanup_close_ int fifo_fd = -1;
+ Manager *m = ASSERT_PTR(userdata);
+ InhibitMode mm;
+ InhibitWhat w;
+ pid_t pid;
+ uid_t uid;
+ int r;
+
+ assert(message);
+
+ r = sd_bus_message_read(message, "ssss", &what, &who, &why, &mode);
+ if (r < 0)
+ return r;
+
+ w = inhibit_what_from_string(what);
+ if (w <= 0)
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
+ "Invalid what specification %s", what);
+
+ mm = inhibit_mode_from_string(mode);
+ if (mm < 0)
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
+ "Invalid mode specification %s", mode);
+
+ /* Delay is only supported for shutdown/sleep */
+ if (mm == INHIBIT_DELAY && (w & ~(INHIBIT_SHUTDOWN|INHIBIT_SLEEP)))
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
+ "Delay inhibitors only supported for shutdown and sleep");
+
+ /* Don't allow taking delay locks while we are already
+ * executing the operation. We shouldn't create the impression
+ * that the lock was successful if the machine is about to go
+ * down/suspend any moment. */
+ if (m->delayed_action && m->delayed_action->inhibit_what & w)
+ return sd_bus_error_setf(error, BUS_ERROR_OPERATION_IN_PROGRESS,
+ "The operation inhibition has been requested for is already running");
+
+ r = bus_verify_polkit_async(
+ message,
+ CAP_SYS_BOOT,
+ w == INHIBIT_SHUTDOWN ? (mm == INHIBIT_BLOCK ? "org.freedesktop.login1.inhibit-block-shutdown" : "org.freedesktop.login1.inhibit-delay-shutdown") :
+ w == INHIBIT_SLEEP ? (mm == INHIBIT_BLOCK ? "org.freedesktop.login1.inhibit-block-sleep" : "org.freedesktop.login1.inhibit-delay-sleep") :
+ w == INHIBIT_IDLE ? "org.freedesktop.login1.inhibit-block-idle" :
+ w == INHIBIT_HANDLE_POWER_KEY ? "org.freedesktop.login1.inhibit-handle-power-key" :
+ w == INHIBIT_HANDLE_SUSPEND_KEY ? "org.freedesktop.login1.inhibit-handle-suspend-key" :
+ w == INHIBIT_HANDLE_REBOOT_KEY ? "org.freedesktop.login1.inhibit-handle-reboot-key" :
+ w == INHIBIT_HANDLE_HIBERNATE_KEY ? "org.freedesktop.login1.inhibit-handle-hibernate-key" :
+ "org.freedesktop.login1.inhibit-handle-lid-switch",
+ NULL,
+ false,
+ UID_INVALID,
+ &m->polkit_registry,
+ error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
+
+ r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_EUID|SD_BUS_CREDS_PID, &creds);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_creds_get_euid(creds, &uid);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_creds_get_pid(creds, &pid);
+ if (r < 0)
+ return r;
+
+ if (hashmap_size(m->inhibitors) >= m->inhibitors_max)
+ return sd_bus_error_setf(error, SD_BUS_ERROR_LIMITS_EXCEEDED,
+ "Maximum number of inhibitors (%" PRIu64 ") reached, refusing further inhibitors.",
+ m->inhibitors_max);
+
+ do {
+ id = mfree(id);
+
+ if (asprintf(&id, "%lu", ++m->inhibit_counter) < 0)
+ return -ENOMEM;
+
+ } while (hashmap_get(m->inhibitors, id));
+
+ _cleanup_(inhibitor_freep) Inhibitor *i = NULL;
+ r = manager_add_inhibitor(m, id, &i);
+ if (r < 0)
+ return r;
+
+ i->what = w;
+ i->mode = mm;
+ i->pid = pid;
+ i->uid = uid;
+ i->why = strdup(why);
+ i->who = strdup(who);
+
+ if (!i->why || !i->who)
+ return -ENOMEM;
+
+ fifo_fd = inhibitor_create_fifo(i);
+ if (fifo_fd < 0)
+ return fifo_fd;
+
+ r = inhibitor_start(i);
+ if (r < 0)
+ return r;
+ TAKE_PTR(i);
+
+ return sd_bus_reply_method_return(message, "h", fifo_fd);
+}
+
+static const sd_bus_vtable manager_vtable[] = {
+ SD_BUS_VTABLE_START(0),
+
+ SD_BUS_WRITABLE_PROPERTY("EnableWallMessages", "b", bus_property_get_bool, bus_property_set_bool, offsetof(Manager, enable_wall_messages), 0),
+ SD_BUS_WRITABLE_PROPERTY("WallMessage", "s", NULL, NULL, offsetof(Manager, wall_message), 0),
+
+ SD_BUS_PROPERTY("NAutoVTs", "u", NULL, offsetof(Manager, n_autovts), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("KillOnlyUsers", "as", NULL, offsetof(Manager, kill_only_users), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("KillExcludeUsers", "as", NULL, offsetof(Manager, kill_exclude_users), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("KillUserProcesses", "b", bus_property_get_bool, offsetof(Manager, kill_user_processes), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("RebootParameter", "s", property_get_reboot_parameter, 0, 0),
+ SD_BUS_PROPERTY("RebootToFirmwareSetup", "b", property_get_reboot_to_firmware_setup, 0, 0),
+ SD_BUS_PROPERTY("RebootToBootLoaderMenu", "t", property_get_reboot_to_boot_loader_menu, 0, 0),
+ SD_BUS_PROPERTY("RebootToBootLoaderEntry", "s", property_get_reboot_to_boot_loader_entry, 0, 0),
+ SD_BUS_PROPERTY("BootLoaderEntries", "as", property_get_boot_loader_entries, 0, SD_BUS_VTABLE_PROPERTY_CONST),
+ 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_PROPERTY("BlockInhibited", "s", property_get_inhibited, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
+ SD_BUS_PROPERTY("DelayInhibited", "s", property_get_inhibited, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
+ SD_BUS_PROPERTY("InhibitDelayMaxUSec", "t", NULL, offsetof(Manager, inhibit_delay_max), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("UserStopDelayUSec", "t", NULL, offsetof(Manager, user_stop_delay), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("HandlePowerKey", "s", property_get_handle_action, offsetof(Manager, handle_power_key), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("HandlePowerKeyLongPress", "s", property_get_handle_action, offsetof(Manager, handle_power_key_long_press), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("HandleRebootKey", "s", property_get_handle_action, offsetof(Manager, handle_reboot_key), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("HandleRebootKeyLongPress", "s", property_get_handle_action, offsetof(Manager, handle_reboot_key_long_press), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("HandleSuspendKey", "s", property_get_handle_action, offsetof(Manager, handle_suspend_key), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("HandleSuspendKeyLongPress", "s", property_get_handle_action, offsetof(Manager, handle_suspend_key_long_press), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("HandleHibernateKey", "s", property_get_handle_action, offsetof(Manager, handle_hibernate_key), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("HandleHibernateKeyLongPress", "s", property_get_handle_action, offsetof(Manager, handle_hibernate_key_long_press), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("HandleLidSwitch", "s", property_get_handle_action, offsetof(Manager, handle_lid_switch), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("HandleLidSwitchExternalPower", "s", property_get_handle_action, offsetof(Manager, handle_lid_switch_ep), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("HandleLidSwitchDocked", "s", property_get_handle_action, offsetof(Manager, handle_lid_switch_docked), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("HoldoffTimeoutUSec", "t", NULL, offsetof(Manager, holdoff_timeout_usec), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("IdleAction", "s", property_get_handle_action, offsetof(Manager, idle_action), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("IdleActionUSec", "t", NULL, offsetof(Manager, idle_action_usec), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("PreparingForShutdown", "b", property_get_preparing, 0, 0),
+ SD_BUS_PROPERTY("PreparingForSleep", "b", property_get_preparing, 0, 0),
+ SD_BUS_PROPERTY("ScheduledShutdown", "(st)", property_get_scheduled_shutdown, 0, 0),
+ SD_BUS_PROPERTY("Docked", "b", property_get_docked, 0, 0),
+ SD_BUS_PROPERTY("LidClosed", "b", property_get_lid_closed, 0, 0),
+ SD_BUS_PROPERTY("OnExternalPower", "b", property_get_on_external_power, 0, 0),
+ SD_BUS_PROPERTY("RemoveIPC", "b", bus_property_get_bool, offsetof(Manager, remove_ipc), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("RuntimeDirectorySize", "t", NULL, offsetof(Manager, runtime_dir_size), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("RuntimeDirectoryInodesMax", "t", NULL, offsetof(Manager, runtime_dir_inodes), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("InhibitorsMax", "t", NULL, offsetof(Manager, inhibitors_max), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("NCurrentInhibitors", "t", property_get_hashmap_size, offsetof(Manager, inhibitors), 0),
+ SD_BUS_PROPERTY("SessionsMax", "t", NULL, offsetof(Manager, sessions_max), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("NCurrentSessions", "t", property_get_hashmap_size, offsetof(Manager, sessions), 0),
+ SD_BUS_PROPERTY("UserTasksMax", "t", property_get_compat_user_tasks_max, 0, SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
+ SD_BUS_PROPERTY("StopIdleSessionUSec", "t", NULL, offsetof(Manager, stop_idle_session_usec), SD_BUS_VTABLE_PROPERTY_CONST),
+
+ SD_BUS_METHOD_WITH_ARGS("GetSession",
+ SD_BUS_ARGS("s", session_id),
+ SD_BUS_RESULT("o", object_path),
+ method_get_session,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("GetSessionByPID",
+ SD_BUS_ARGS("u", pid),
+ SD_BUS_RESULT("o", object_path),
+ method_get_session_by_pid,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("GetUser",
+ SD_BUS_ARGS("u", uid),
+ SD_BUS_RESULT("o", object_path),
+ method_get_user,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("GetUserByPID",
+ SD_BUS_ARGS("u", pid),
+ SD_BUS_RESULT("o", object_path),
+ method_get_user_by_pid,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("GetSeat",
+ SD_BUS_ARGS("s", seat_id),
+ SD_BUS_RESULT("o", object_path),
+ method_get_seat,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("ListSessions",
+ SD_BUS_NO_ARGS,
+ SD_BUS_RESULT("a(susso)", sessions),
+ method_list_sessions,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("ListUsers",
+ SD_BUS_NO_ARGS,
+ SD_BUS_RESULT("a(uso)", users),
+ method_list_users,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("ListSeats",
+ SD_BUS_NO_ARGS,
+ SD_BUS_RESULT("a(so)", seats),
+ method_list_seats,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("ListInhibitors",
+ SD_BUS_NO_ARGS,
+ SD_BUS_RESULT("a(ssssuu)", inhibitors),
+ method_list_inhibitors,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("CreateSession",
+ SD_BUS_ARGS("u", uid,
+ "u", pid,
+ "s", service,
+ "s", type,
+ "s", class,
+ "s", desktop,
+ "s", seat_id,
+ "u", vtnr,
+ "s", tty,
+ "s", display,
+ "b", remote,
+ "s", remote_user,
+ "s", remote_host,
+ "a(sv)", properties),
+ SD_BUS_RESULT("s", session_id,
+ "o", object_path,
+ "s", runtime_path,
+ "h", fifo_fd,
+ "u", uid,
+ "s", seat_id,
+ "u", vtnr,
+ "b", existing),
+ method_create_session,
+ 0),
+ SD_BUS_METHOD_WITH_ARGS("ReleaseSession",
+ SD_BUS_ARGS("s", session_id),
+ SD_BUS_NO_RESULT,
+ method_release_session,
+ 0),
+ SD_BUS_METHOD_WITH_ARGS("ActivateSession",
+ SD_BUS_ARGS("s", session_id),
+ SD_BUS_NO_RESULT,
+ method_activate_session,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("ActivateSessionOnSeat",
+ SD_BUS_ARGS("s", session_id, "s", seat_id),
+ SD_BUS_NO_RESULT,
+ method_activate_session_on_seat,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("LockSession",
+ SD_BUS_ARGS("s", session_id),
+ SD_BUS_NO_RESULT,
+ method_lock_session,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("UnlockSession",
+ SD_BUS_ARGS("s", session_id),
+ SD_BUS_NO_RESULT,
+ method_lock_session,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("LockSessions",
+ NULL,
+ NULL,
+ method_lock_sessions,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("UnlockSessions",
+ NULL,
+ NULL,
+ method_lock_sessions,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("KillSession",
+ SD_BUS_ARGS("s", session_id, "s", who, "i", signal_number),
+ SD_BUS_NO_RESULT,
+ method_kill_session,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("KillUser",
+ SD_BUS_ARGS("u", uid, "i", signal_number),
+ SD_BUS_NO_RESULT,
+ method_kill_user,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("TerminateSession",
+ SD_BUS_ARGS("s", session_id),
+ SD_BUS_NO_RESULT,
+ method_terminate_session,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("TerminateUser",
+ SD_BUS_ARGS("u", uid),
+ SD_BUS_NO_RESULT,
+ method_terminate_user,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("TerminateSeat",
+ SD_BUS_ARGS("s", seat_id),
+ SD_BUS_NO_RESULT,
+ method_terminate_seat,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("SetUserLinger",
+ SD_BUS_ARGS("u", uid, "b", enable, "b", interactive),
+ SD_BUS_NO_RESULT,
+ method_set_user_linger,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("AttachDevice",
+ SD_BUS_ARGS("s", seat_id, "s", sysfs_path, "b", interactive),
+ SD_BUS_NO_RESULT,
+ method_attach_device,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("FlushDevices",
+ SD_BUS_ARGS("b", interactive),
+ SD_BUS_NO_RESULT,
+ method_flush_devices,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("PowerOff",
+ SD_BUS_ARGS("b", interactive),
+ SD_BUS_NO_RESULT,
+ method_poweroff,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("PowerOffWithFlags",
+ SD_BUS_ARGS("t", flags),
+ SD_BUS_NO_RESULT,
+ method_poweroff,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("Reboot",
+ SD_BUS_ARGS("b", interactive),
+ SD_BUS_NO_RESULT,
+ method_reboot,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("RebootWithFlags",
+ SD_BUS_ARGS("t", flags),
+ SD_BUS_NO_RESULT,
+ method_reboot,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("Halt",
+ SD_BUS_ARGS("b", interactive),
+ SD_BUS_NO_RESULT,
+ method_halt,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("HaltWithFlags",
+ SD_BUS_ARGS("t", flags),
+ SD_BUS_NO_RESULT,
+ method_halt,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("Suspend",
+ SD_BUS_ARGS("b", interactive),
+ SD_BUS_NO_RESULT,
+ method_suspend,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("SuspendWithFlags",
+ SD_BUS_ARGS("t", flags),
+ SD_BUS_NO_RESULT,
+ method_suspend,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("Hibernate",
+ SD_BUS_ARGS("b", interactive),
+ SD_BUS_NO_RESULT,
+ method_hibernate,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("HibernateWithFlags",
+ SD_BUS_ARGS("t", flags),
+ SD_BUS_NO_RESULT,
+ method_hibernate,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("HybridSleep",
+ SD_BUS_ARGS("b", interactive),
+ SD_BUS_NO_RESULT,
+ method_hybrid_sleep,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("HybridSleepWithFlags",
+ SD_BUS_ARGS("t", flags),
+ SD_BUS_NO_RESULT,
+ method_hybrid_sleep,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("SuspendThenHibernate",
+ SD_BUS_ARGS("b", interactive),
+ SD_BUS_NO_RESULT,
+ method_suspend_then_hibernate,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("SuspendThenHibernateWithFlags",
+ SD_BUS_ARGS("t", flags),
+ SD_BUS_NO_RESULT,
+ method_suspend_then_hibernate,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("CanPowerOff",
+ SD_BUS_NO_ARGS,
+ SD_BUS_RESULT("s", result),
+ method_can_poweroff,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("CanReboot",
+ SD_BUS_NO_ARGS,
+ SD_BUS_RESULT("s", result),
+ method_can_reboot,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("CanHalt",
+ SD_BUS_NO_ARGS,
+ SD_BUS_RESULT("s", result),
+ method_can_halt,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("CanSuspend",
+ SD_BUS_NO_ARGS,
+ SD_BUS_RESULT("s", result),
+ method_can_suspend,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("CanHibernate",
+ SD_BUS_NO_ARGS,
+ SD_BUS_RESULT("s", result),
+ method_can_hibernate,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("CanHybridSleep",
+ SD_BUS_NO_ARGS,
+ SD_BUS_RESULT("s", result),
+ method_can_hybrid_sleep,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("CanSuspendThenHibernate",
+ SD_BUS_NO_ARGS,
+ SD_BUS_RESULT("s", result),
+ method_can_suspend_then_hibernate,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("ScheduleShutdown",
+ SD_BUS_ARGS("s", type, "t", usec),
+ SD_BUS_NO_RESULT,
+ method_schedule_shutdown,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("CancelScheduledShutdown",
+ SD_BUS_NO_ARGS,
+ SD_BUS_RESULT("b", cancelled),
+ method_cancel_scheduled_shutdown,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("Inhibit",
+ SD_BUS_ARGS("s", what, "s", who, "s", why, "s", mode),
+ SD_BUS_RESULT("h", pipe_fd),
+ method_inhibit,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("CanRebootParameter",
+ SD_BUS_NO_ARGS,
+ SD_BUS_RESULT("s", result),
+ method_can_reboot_parameter,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("SetRebootParameter",
+ SD_BUS_ARGS("s", parameter),
+ SD_BUS_NO_RESULT,
+ method_set_reboot_parameter,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("CanRebootToFirmwareSetup",
+ SD_BUS_NO_ARGS,
+ SD_BUS_RESULT("s", result),
+ method_can_reboot_to_firmware_setup,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("SetRebootToFirmwareSetup",
+ SD_BUS_ARGS("b", enable),
+ SD_BUS_NO_RESULT,
+ method_set_reboot_to_firmware_setup,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("CanRebootToBootLoaderMenu",
+ SD_BUS_NO_ARGS,
+ SD_BUS_RESULT("s", result),
+ method_can_reboot_to_boot_loader_menu,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("SetRebootToBootLoaderMenu",
+ SD_BUS_ARGS("t", timeout),
+ SD_BUS_NO_RESULT,
+ method_set_reboot_to_boot_loader_menu,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("CanRebootToBootLoaderEntry",
+ SD_BUS_NO_ARGS,
+ SD_BUS_RESULT("s", result),
+ method_can_reboot_to_boot_loader_entry,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("SetRebootToBootLoaderEntry",
+ SD_BUS_ARGS("s", boot_loader_entry),
+ SD_BUS_NO_RESULT,
+ method_set_reboot_to_boot_loader_entry,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("SetWallMessage",
+ SD_BUS_ARGS("s", wall_message, "b", enable),
+ SD_BUS_NO_RESULT,
+ method_set_wall_message,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+
+ SD_BUS_SIGNAL_WITH_ARGS("SessionNew",
+ SD_BUS_ARGS("s", session_id, "o", object_path),
+ 0),
+ SD_BUS_SIGNAL_WITH_ARGS("SessionRemoved",
+ SD_BUS_ARGS("s", session_id, "o", object_path),
+ 0),
+ SD_BUS_SIGNAL_WITH_ARGS("UserNew",
+ SD_BUS_ARGS("u", uid, "o", object_path),
+ 0),
+ SD_BUS_SIGNAL_WITH_ARGS("UserRemoved",
+ SD_BUS_ARGS("u", uid, "o", object_path),
+ 0),
+ SD_BUS_SIGNAL_WITH_ARGS("SeatNew",
+ SD_BUS_ARGS("s", seat_id, "o", object_path),
+ 0),
+ SD_BUS_SIGNAL_WITH_ARGS("SeatRemoved",
+ SD_BUS_ARGS("s", seat_id, "o", object_path),
+ 0),
+ SD_BUS_SIGNAL_WITH_ARGS("PrepareForShutdown",
+ SD_BUS_ARGS("b", start),
+ 0),
+ SD_BUS_SIGNAL_WITH_ARGS("PrepareForSleep",
+ SD_BUS_ARGS("b", start),
+ 0),
+
+ SD_BUS_VTABLE_END
+};
+
+const BusObjectImplementation manager_object = {
+ "/org/freedesktop/login1",
+ "org.freedesktop.login1.Manager",
+ .vtables = BUS_VTABLES(manager_vtable),
+ .children = BUS_IMPLEMENTATIONS(&seat_object,
+ &session_object,
+ &user_object),
+};
+
+static int session_jobs_reply(Session *s, uint32_t jid, const char *unit, const char *result) {
+ assert(s);
+ assert(unit);
+
+ if (!s->started)
+ return 0;
+
+ if (result && !streq(result, "done")) {
+ _cleanup_(sd_bus_error_free) sd_bus_error e = SD_BUS_ERROR_NULL;
+
+ sd_bus_error_setf(&e, BUS_ERROR_JOB_FAILED,
+ "Job %u for unit '%s' failed with '%s'", jid, unit, result);
+ return session_send_create_reply(s, &e);
+ }
+
+ return session_send_create_reply(s, NULL);
+}
+
+int match_job_removed(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ const char *path, *result, *unit;
+ Manager *m = ASSERT_PTR(userdata);
+ Session *session;
+ uint32_t id;
+ User *user;
+ int r;
+
+ assert(message);
+
+ r = sd_bus_message_read(message, "uoss", &id, &path, &unit, &result);
+ if (r < 0) {
+ bus_log_parse_error(r);
+ return 0;
+ }
+
+ if (m->action_job && streq(m->action_job, path)) {
+ assert(m->delayed_action);
+ log_info("Operation '%s' finished.", inhibit_what_to_string(m->delayed_action->inhibit_what));
+
+ /* Tell people that they now may take a lock again */
+ (void) send_prepare_for(m, m->delayed_action->inhibit_what, false);
+
+ m->action_job = mfree(m->action_job);
+ m->delayed_action = NULL;
+ return 0;
+ }
+
+ session = hashmap_get(m->session_units, unit);
+ if (session) {
+ if (streq_ptr(path, session->scope_job)) {
+ session->scope_job = mfree(session->scope_job);
+ (void) session_jobs_reply(session, id, unit, result);
+
+ session_save(session);
+ user_save(session->user);
+ }
+
+ session_add_to_gc_queue(session);
+ }
+
+ user = hashmap_get(m->user_units, unit);
+ if (user) {
+ if (streq_ptr(path, user->service_job)) {
+ user->service_job = mfree(user->service_job);
+
+ LIST_FOREACH(sessions_by_user, s, user->sessions)
+ (void) session_jobs_reply(s, id, unit, NULL /* don't propagate user service failures to the client */);
+
+ user_save(user);
+ }
+
+ user_add_to_gc_queue(user);
+ }
+
+ return 0;
+}
+
+int match_unit_removed(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ const char *path, *unit;
+ Manager *m = ASSERT_PTR(userdata);
+ Session *session;
+ User *user;
+ int r;
+
+ assert(message);
+
+ r = sd_bus_message_read(message, "so", &unit, &path);
+ if (r < 0) {
+ bus_log_parse_error(r);
+ return 0;
+ }
+
+ session = hashmap_get(m->session_units, unit);
+ if (session)
+ session_add_to_gc_queue(session);
+
+ user = hashmap_get(m->user_units, unit);
+ if (user)
+ user_add_to_gc_queue(user);
+
+ return 0;
+}
+
+int match_properties_changed(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ _cleanup_free_ char *unit = NULL;
+ Manager *m = ASSERT_PTR(userdata);
+ const char *path;
+ Session *session;
+ User *user;
+ int r;
+
+ assert(message);
+
+ path = sd_bus_message_get_path(message);
+ if (!path)
+ return 0;
+
+ r = unit_name_from_dbus_path(path, &unit);
+ if (r == -EINVAL) /* not a unit */
+ return 0;
+ if (r < 0) {
+ log_oom();
+ return 0;
+ }
+
+ session = hashmap_get(m->session_units, unit);
+ if (session)
+ session_add_to_gc_queue(session);
+
+ user = hashmap_get(m->user_units, unit);
+ if (user)
+ user_add_to_gc_queue(user);
+
+ return 0;
+}
+
+int match_reloading(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *m = ASSERT_PTR(userdata);
+ Session *session;
+ int b, r;
+
+ assert(message);
+
+ r = sd_bus_message_read(message, "b", &b);
+ if (r < 0) {
+ bus_log_parse_error(r);
+ return 0;
+ }
+
+ if (b)
+ return 0;
+
+ /* systemd finished reloading, let's recheck all our sessions */
+ log_debug("System manager has been reloaded, rechecking sessions...");
+
+ HASHMAP_FOREACH(session, m->sessions)
+ session_add_to_gc_queue(session);
+
+ return 0;
+}
+
+int manager_send_changed(Manager *manager, const char *property, ...) {
+ char **l;
+
+ assert(manager);
+
+ l = strv_from_stdarg_alloca(property);
+
+ return sd_bus_emit_properties_changed_strv(
+ manager->bus,
+ "/org/freedesktop/login1",
+ "org.freedesktop.login1.Manager",
+ l);
+}
+
+static int strdup_job(sd_bus_message *reply, char **job) {
+ const char *j;
+ char *copy;
+ int r;
+
+ r = sd_bus_message_read(reply, "o", &j);
+ if (r < 0)
+ return r;
+
+ copy = strdup(j);
+ if (!copy)
+ return -ENOMEM;
+
+ *job = copy;
+ return 1;
+}
+
+int manager_start_scope(
+ Manager *manager,
+ const char *scope,
+ pid_t pid,
+ const char *slice,
+ const char *description,
+ char **wants,
+ char **after,
+ const char *requires_mounts_for,
+ sd_bus_message *more_properties,
+ sd_bus_error *error,
+ char **job) {
+
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL;
+ int r;
+
+ assert(manager);
+ assert(scope);
+ assert(pid > 1);
+ assert(job);
+
+ r = bus_message_new_method_call(manager->bus, &m, bus_systemd_mgr, "StartTransientUnit");
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_append(m, "ss", strempty(scope), "fail");
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_open_container(m, 'a', "(sv)");
+ if (r < 0)
+ return r;
+
+ if (!isempty(slice)) {
+ r = sd_bus_message_append(m, "(sv)", "Slice", "s", slice);
+ if (r < 0)
+ return r;
+ }
+
+ if (!isempty(description)) {
+ r = sd_bus_message_append(m, "(sv)", "Description", "s", description);
+ if (r < 0)
+ return r;
+ }
+
+ STRV_FOREACH(i, wants) {
+ r = sd_bus_message_append(m, "(sv)", "Wants", "as", 1, *i);
+ if (r < 0)
+ return r;
+ }
+
+ STRV_FOREACH(i, after) {
+ r = sd_bus_message_append(m, "(sv)", "After", "as", 1, *i);
+ if (r < 0)
+ return r;
+ }
+
+ if (!empty_or_root(requires_mounts_for)) {
+ r = sd_bus_message_append(m, "(sv)", "RequiresMountsFor", "as", 1, requires_mounts_for);
+ if (r < 0)
+ return r;
+ }
+
+ /* Make sure that the session shells are terminated with SIGHUP since bash and friends tend to ignore
+ * SIGTERM */
+ r = sd_bus_message_append(m, "(sv)", "SendSIGHUP", "b", true);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_append(m, "(sv)", "PIDs", "au", 1, pid);
+ if (r < 0)
+ return r;
+
+ /* For login session scopes, if a process is OOM killed by the kernel, *don't* terminate the rest of
+ the scope */
+ r = sd_bus_message_append(m, "(sv)", "OOMPolicy", "s", "continue");
+ if (r < 0)
+ return r;
+
+ /* disable TasksMax= for the session scope, rely on the slice setting for it */
+ r = sd_bus_message_append(m, "(sv)", "TasksMax", "t", UINT64_MAX);
+ if (r < 0)
+ return bus_log_create_error(r);
+
+ if (more_properties) {
+ /* If TasksMax also appears here, it will overwrite the default value set above */
+ r = sd_bus_message_copy(m, more_properties, true);
+ if (r < 0)
+ return r;
+ }
+
+ r = sd_bus_message_close_container(m);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_append(m, "a(sa(sv))", 0);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_call(manager->bus, m, 0, error, &reply);
+ if (r < 0)
+ return r;
+
+ return strdup_job(reply, job);
+}
+
+int manager_start_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job) {
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
+ int r;
+
+ assert(manager);
+ assert(unit);
+ assert(job);
+
+ r = bus_call_method(
+ manager->bus,
+ bus_systemd_mgr,
+ "StartUnit",
+ error,
+ &reply,
+ "ss", unit, "replace");
+ if (r < 0)
+ return r;
+
+ return strdup_job(reply, job);
+}
+
+int manager_stop_unit(Manager *manager, const char *unit, const char *job_mode, sd_bus_error *error, char **ret_job) {
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
+ int r;
+
+ assert(manager);
+ assert(unit);
+ assert(ret_job);
+
+ r = bus_call_method(
+ manager->bus,
+ bus_systemd_mgr,
+ "StopUnit",
+ error,
+ &reply,
+ "ss", unit, job_mode ?: "fail");
+ if (r < 0) {
+ if (sd_bus_error_has_names(error, BUS_ERROR_NO_SUCH_UNIT,
+ BUS_ERROR_LOAD_FAILED)) {
+
+ *ret_job = NULL;
+ sd_bus_error_free(error);
+ return 0;
+ }
+
+ return r;
+ }
+
+ return strdup_job(reply, ret_job);
+}
+
+int manager_abandon_scope(Manager *manager, const char *scope, sd_bus_error *ret_error) {
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+ _cleanup_free_ char *path = NULL;
+ int r;
+
+ assert(manager);
+ assert(scope);
+
+ path = unit_dbus_path_from_name(scope);
+ if (!path)
+ return -ENOMEM;
+
+ r = sd_bus_call_method(
+ manager->bus,
+ "org.freedesktop.systemd1",
+ path,
+ "org.freedesktop.systemd1.Scope",
+ "Abandon",
+ &error,
+ NULL,
+ NULL);
+ if (r < 0) {
+ if (sd_bus_error_has_names(&error, BUS_ERROR_NO_SUCH_UNIT,
+ BUS_ERROR_LOAD_FAILED,
+ BUS_ERROR_SCOPE_NOT_RUNNING))
+ return 0;
+
+ sd_bus_error_move(ret_error, &error);
+ return r;
+ }
+
+ return 1;
+}
+
+int manager_kill_unit(Manager *manager, const char *unit, KillWho who, int signo, sd_bus_error *error) {
+ assert(manager);
+ assert(unit);
+
+ return bus_call_method(
+ manager->bus,
+ bus_systemd_mgr,
+ "KillUnit",
+ error,
+ NULL,
+ "ssi", unit, who == KILL_LEADER ? "main" : "all", signo);
+}
+
+int manager_unit_is_active(Manager *manager, const char *unit, sd_bus_error *ret_error) {
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
+ _cleanup_free_ char *path = NULL;
+ const char *state;
+ int r;
+
+ assert(manager);
+ assert(unit);
+
+ path = unit_dbus_path_from_name(unit);
+ if (!path)
+ return -ENOMEM;
+
+ r = sd_bus_get_property(
+ manager->bus,
+ "org.freedesktop.systemd1",
+ path,
+ "org.freedesktop.systemd1.Unit",
+ "ActiveState",
+ &error,
+ &reply,
+ "s");
+ if (r < 0) {
+ /* systemd might have dropped off momentarily, let's
+ * not make this an error */
+ if (sd_bus_error_has_names(&error, SD_BUS_ERROR_NO_REPLY,
+ SD_BUS_ERROR_DISCONNECTED))
+ return true;
+
+ /* If the unit is already unloaded then it's not
+ * active */
+ if (sd_bus_error_has_names(&error, BUS_ERROR_NO_SUCH_UNIT,
+ BUS_ERROR_LOAD_FAILED))
+ return false;
+
+ sd_bus_error_move(ret_error, &error);
+ return r;
+ }
+
+ r = sd_bus_message_read(reply, "s", &state);
+ if (r < 0)
+ return r;
+
+ return !STR_IN_SET(state, "inactive", "failed");
+}
+
+int manager_job_is_active(Manager *manager, const char *path, sd_bus_error *ret_error) {
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
+ int r;
+
+ assert(manager);
+ assert(path);
+
+ r = sd_bus_get_property(
+ manager->bus,
+ "org.freedesktop.systemd1",
+ path,
+ "org.freedesktop.systemd1.Job",
+ "State",
+ &error,
+ &reply,
+ "s");
+ if (r < 0) {
+ if (sd_bus_error_has_names(&error, SD_BUS_ERROR_NO_REPLY,
+ SD_BUS_ERROR_DISCONNECTED))
+ return true;
+
+ if (sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_OBJECT))
+ return false;
+
+ sd_bus_error_move(ret_error, &error);
+ return r;
+ }
+
+ /* We don't actually care about the state really. The fact
+ * that we could read the job state is enough for us */
+
+ return true;
+}