chiark / gitweb /
Prep v230: Apply missing upstream fixes and updates (6/8) src/login.
[elogind.git] / src / login / logind-dbus.c
index b9296b5e5cc60185cd50a05d237f564eaf6c61ae..44fe5e507937acb72c11ed6309267ab66b6faf72 100644 (file)
@@ -1,5 +1,3 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
 /***
   This file is part of systemd.
 
 ***/
 
 #include <errno.h>
+#include <pwd.h>
 #include <string.h>
 #include <unistd.h>
-#include <pwd.h>
 
 #include "sd-messages.h"
-#include "strv.h"
-#include "mkdir.h"
-#include "path-util.h"
-// #include "special.h"
-#include "sleep-config.h"
-#include "fileio-label.h"
-#include "unit-name.h"
-#include "audit.h"
-#include "bus-util.h"
-#include "bus-error.h"
+
+#include "alloc-util.h"
+#include "audit-util.h"
 #include "bus-common-errors.h"
-#include "udev-util.h"
-#include "selinux-util.h"
-#include "efivars.h"
-#include "logind.h"
+#include "bus-error.h"
+#include "bus-util.h"
+#include "dirent-util.h"
+//#include "efivars.h"
+#include "escape.h"
+#include "fd-util.h"
+#include "fileio-label.h"
 #include "formats-util.h"
+#include "fs-util.h"
+#include "logind.h"
+#include "mkdir.h"
+#include "path-util.h"
 #include "process-util.h"
+#include "selinux-util.h"
+//#include "sleep-config.h"
+//#include "special.h"
+#include "strv.h"
 #include "terminal-util.h"
-#include "utmp-wtmp.h"
+#include "udev-util.h"
+#include "unit-name.h"
+#include "user-util.h"
+//#include "utmp-wtmp.h"
 
 int manager_get_session_from_creds(Manager *m, sd_bus_message *message, const char *name, sd_bus_error *error, Session **ret) {
-        _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
+        _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
         Session *session;
         int r;
 
@@ -81,7 +86,7 @@ int manager_get_user_from_creds(Manager *m, sd_bus_message *message, uid_t uid,
         assert(ret);
 
         if (uid == UID_INVALID) {
-                _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
+                _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
 
                 /* 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);
@@ -117,7 +122,6 @@ int manager_get_seat_from_creds(Manager *m, sd_bus_message *message, const char
                         return r;
 
                 seat = session->seat;
-
                 if (!seat)
                         return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SEAT, "Session has no seat.");
         } else {
@@ -261,6 +265,42 @@ static int property_get_docked(
         return sd_bus_message_append(reply, "b", manager_is_docked_or_external_displays(m));
 }
 
+static int property_get_current_sessions(
+                sd_bus *bus,
+                const char *path,
+                const char *interface,
+                const char *property,
+                sd_bus_message *reply,
+                void *userdata,
+                sd_bus_error *error) {
+
+        Manager *m = userdata;
+
+        assert(bus);
+        assert(reply);
+        assert(m);
+
+        return sd_bus_message_append(reply, "t", (uint64_t) hashmap_size(m->sessions));
+}
+
+static int property_get_current_inhibitors(
+                sd_bus *bus,
+                const char *path,
+                const char *interface,
+                const char *property,
+                sd_bus_message *reply,
+                void *userdata,
+                sd_bus_error *error) {
+
+        Manager *m = userdata;
+
+        assert(bus);
+        assert(reply);
+        assert(m);
+
+        return sd_bus_message_append(reply, "t", (uint64_t) hashmap_size(m->inhibitors));
+}
+
 static int method_get_session(sd_bus_message *message, void *userdata, sd_bus_error *error) {
         _cleanup_free_ char *p = NULL;
         Manager *m = userdata;
@@ -301,8 +341,10 @@ static int method_get_session_by_pid(sd_bus_message *message, void *userdata, sd
         r = sd_bus_message_read(message, "u", &pid);
         if (r < 0)
                 return r;
+        if (pid < 0)
+                return -EINVAL;
 
-        if (pid <= 0) {
+        if (pid == 0) {
                 r = manager_get_session_from_creds(m, message, NULL, error, &session);
                 if (r < 0)
                         return r;
@@ -362,8 +404,10 @@ static int method_get_user_by_pid(sd_bus_message *message, void *userdata, sd_bu
         r = sd_bus_message_read(message, "u", &pid);
         if (r < 0)
                 return r;
+        if (pid < 0)
+                return -EINVAL;
 
-        if (pid <= 0) {
+        if (pid == 0) {
                 r = manager_get_user_from_creds(m, message, UID_INVALID, error, &user);
                 if (r < 0)
                         return r;
@@ -408,7 +452,7 @@ static int method_get_seat(sd_bus_message *message, void *userdata, sd_bus_error
 }
 
 static int method_list_sessions(sd_bus_message *message, void *userdata, sd_bus_error *error) {
-        _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
+        _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
         Manager *m = userdata;
         Session *session;
         Iterator i;
@@ -450,7 +494,7 @@ static int method_list_sessions(sd_bus_message *message, void *userdata, sd_bus_
 }
 
 static int method_list_users(sd_bus_message *message, void *userdata, sd_bus_error *error) {
-        _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
+        _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
         Manager *m = userdata;
         User *user;
         Iterator i;
@@ -490,7 +534,7 @@ static int method_list_users(sd_bus_message *message, void *userdata, sd_bus_err
 }
 
 static int method_list_seats(sd_bus_message *message, void *userdata, sd_bus_error *error) {
-        _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
+        _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
         Manager *m = userdata;
         Seat *seat;
         Iterator i;
@@ -527,7 +571,7 @@ static int method_list_seats(sd_bus_message *message, void *userdata, sd_bus_err
 }
 
 static int method_list_inhibitors(sd_bus_message *message, void *userdata, sd_bus_error *error) {
-        _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
+        _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
         Manager *m = userdata;
         Inhibitor *inhibitor;
         Iterator i;
@@ -566,12 +610,14 @@ static int method_list_inhibitors(sd_bus_message *message, void *userdata, sd_bu
 
 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;
-        uint32_t uid, leader, audit_id = 0;
+        uint32_t audit_id = 0;
         _cleanup_free_ char *id = NULL;
         Session *session = NULL;
         Manager *m = userdata;
         User *user = NULL;
         Seat *seat = NULL;
+        pid_t leader;
+        uid_t uid;
         int remote;
         uint32_t vtnr = 0;
         SessionType t;
@@ -581,11 +627,16 @@ static int method_create_session(sd_bus_message *message, void *userdata, sd_bus
         assert(message);
         assert(m);
 
+        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 (leader == 1)
+        if (!uid_is_valid(uid))
+                return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid UID");
+        if (leader < 0 || leader == 1)
                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid leader PID");
 
         if (isempty(type))
@@ -677,8 +728,8 @@ static int method_create_session(sd_bus_message *message, void *userdata, sd_bus
                         c = SESSION_USER;
         }
 
-        if (leader <= 0) {
-                _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
+        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)
@@ -710,6 +761,9 @@ static int method_create_session(sd_bus_message *message, void *userdata, sd_bus
             m->seat0->positions[vtnr]->class != SESSION_GREETER)
                 return sd_bus_error_setf(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);
+
         audit_session_from_pid(leader, &audit_id);
         if (audit_id > 0) {
                 /* Keep our session IDs and the audit session IDs in sync */
@@ -816,13 +870,17 @@ static int method_create_session(sd_bus_message *message, void *userdata, sd_bus
 
         session->create_message = sd_bus_message_ref(message);
 
-        /* Here upstream systemd starts cgroups and the user systemd,
-           and arranges to reply asynchronously.  We reply
-           directly.  */
+#if 0 /// UNNEEDED by elogind
+        /* Now, let's wait until the slice unit and stuff got
+         * created. We send the reply back from
+         * session_send_create_reply(). */
+#else
+        /* We reply directly. */
 
         r = session_send_create_reply(session, NULL);
         if (r < 0)
                 goto fail;
+#endif // 0
 
         return 1;
 
@@ -1068,11 +1126,11 @@ static int method_terminate_seat(sd_bus_message *message, void *userdata, sd_bus
 static int method_set_user_linger(sd_bus_message *message, void *userdata, sd_bus_error *error) {
         _cleanup_free_ char *cc = NULL;
         Manager *m = userdata;
-        int b, r;
+        int r, b, interactive;
         struct passwd *pw;
         const char *path;
         uint32_t uid;
-        int interactive;
+        bool self = false;
 
         assert(message);
         assert(m);
@@ -1082,7 +1140,7 @@ static int method_set_user_linger(sd_bus_message *message, void *userdata, sd_bu
                 return r;
 
         if (uid == UID_INVALID) {
-                _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
+                _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
 
                 /* 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);
@@ -1092,17 +1150,21 @@ static int method_set_user_linger(sd_bus_message *message, void *userdata, sd_bu
                 r = sd_bus_creds_get_owner_uid(creds, &uid);
                 if (r < 0)
                         return r;
-        }
+
+                self = true;
+
+        } else if (!uid_is_valid(uid))
+                return -EINVAL;
 
         errno = 0;
         pw = getpwuid(uid);
         if (!pw)
-                return errno ? -errno : -ENOENT;
+                return errno > 0 ? -errno : -ENOENT;
 
         r = bus_verify_polkit_async(
                         message,
                         CAP_SYS_ADMIN,
-                        "org.freedesktop.login1.set-user-linger",
+                        self ? "org.freedesktop.login1.set-self-linger" : "org.freedesktop.login1.set-user-linger",
                         NULL,
                         interactive,
                         UID_INVALID,
@@ -1215,7 +1277,6 @@ static int attach_device(Manager *m, const char *seat, const char *sysfs) {
                 return -ENOMEM;
 
         mkdir_p_label("/etc/udev/rules.d", 0755);
-        mac_selinux_init("/etc");
         r = write_string_file_atomic_label(file, rule);
         if (r < 0)
                 return r;
@@ -1347,39 +1408,69 @@ static int have_multiple_sessions(
 static int bus_manager_log_shutdown(
                 Manager *m,
                 InhibitWhat w,
-                HandleAction action) {
+#if 0 /// elogind does not support systemd units
+                const char *unit_name) {
 
         const char *p, *q;
 
         assert(m);
+        assert(unit_name);
 
         if (w != INHIBIT_SHUTDOWN)
                 return 0;
 
-        switch (action) {
-        case HANDLE_POWEROFF:
-                p = "MESSAGE=System is powering down.";
+        if (streq(unit_name, SPECIAL_POWEROFF_TARGET)) {
+                p = "MESSAGE=System is powering down";
                 q = "SHUTDOWN=power-off";
-                break;
-        case HANDLE_HALT:
-                p = "MESSAGE=System is halting.";
+        } else if (streq(unit_name, SPECIAL_HALT_TARGET)) {
+                p = "MESSAGE=System is halting";
                 q = "SHUTDOWN=halt";
-                break;
-        case HANDLE_REBOOT:
-                p = "MESSAGE=System is rebooting.";
+        } else if (streq(unit_name, SPECIAL_REBOOT_TARGET)) {
+                p = "MESSAGE=System is rebooting";
                 q = "SHUTDOWN=reboot";
-                break;
-        case HANDLE_KEXEC:
-                p = "MESSAGE=System is rebooting with kexec.";
+        } else if (streq(unit_name, SPECIAL_KEXEC_TARGET)) {
+                p = "MESSAGE=System is rebooting with kexec";
                 q = "SHUTDOWN=kexec";
-                break;
-        default:
-                p = "MESSAGE=System is shutting down.";
+        } else {
+                p = "MESSAGE=System is shutting down";
                 q = NULL;
         }
-
-        if (!isempty(m->wall_message))
-                p = strjoina(p, " (", m->wall_message, ")");
+#else
+                 HandleAction action) {
+
+         const char *p, *q;
+
+         assert(m);
+
+         if (w != INHIBIT_SHUTDOWN)
+                 return 0;
+
+         switch (action) {
+         case HANDLE_POWEROFF:
+                 p = "MESSAGE=System is powering down.";
+                 q = "SHUTDOWN=power-off";
+                 break;
+         case HANDLE_HALT:
+                 p = "MESSAGE=System is halting.";
+                 q = "SHUTDOWN=halt";
+                 break;
+         case HANDLE_REBOOT:
+                 p = "MESSAGE=System is rebooting.";
+                 q = "SHUTDOWN=reboot";
+                 break;
+         case HANDLE_KEXEC:
+                 p = "MESSAGE=System is rebooting with kexec.";
+                 q = "SHUTDOWN=kexec";
+                 break;
+         default:
+                 p = "MESSAGE=System is shutting down.";
+                 q = NULL;
+         }
+#endif // 0
+        if (isempty(m->wall_message))
+                p = strjoina(p, ".");
+        else
+                p = strjoina(p, " (", m->wall_message, ").");
 
         return log_struct(LOG_NOTICE,
                           LOG_MESSAGE_ID(SD_MESSAGE_SHUTDOWN),
@@ -1433,26 +1524,18 @@ int manager_set_lid_switch_ignore(Manager *m, usec_t until) {
         return r;
 }
 
-static int send_prepare_for(Manager *m, InhibitWhat w, bool _active) {
-
-        static const char * const signal_name[_INHIBIT_WHAT_MAX] = {
-                [INHIBIT_SHUTDOWN] = "PrepareForShutdown",
-                [INHIBIT_SLEEP] = "PrepareForSleep"
-        };
-
-        int active = _active;
-
-        assert(m);
-        assert(w >= 0);
-        assert(w < _INHIBIT_WHAT_MAX);
-        assert(signal_name[w]);
+static void reset_scheduled_shutdown(Manager *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_type = mfree(m->scheduled_shutdown_type);
+        m->scheduled_shutdown_timeout = 0;
+        m->shutdown_dry_run = false;
 
-        return sd_bus_emit_signal(m->bus,
-                                  "/org/freedesktop/login1",
-                                  "org.freedesktop.login1.Manager",
-                                  signal_name[w],
-                                  "b",
-                                  active);
+        if (m->unlink_nologin) {
+                (void) unlink("/run/nologin");
+                m->unlink_nologin = false;
+        }
 }
 
 static int execute_shutdown_or_sleep(
@@ -1461,11 +1544,10 @@ static int execute_shutdown_or_sleep(
                 HandleAction action,
                 sd_bus_error *error) {
 
-/// elogind does not need these, we do it ourselves
-#if 0
-        _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
+#if 0 /// elogind does not need these, we do it ourselves
+        _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
+        char *c = NULL;
         const char *p;
-        char *c;
 #endif // 0
         int r;
 
@@ -1475,45 +1557,46 @@ static int execute_shutdown_or_sleep(
 
         bus_manager_log_shutdown(m, w, action);
 
-/// elogind does it directly without depending on systemd running the system
-#if 0
-        r = sd_bus_call_method(
-                        m->bus,
-                        "org.freedesktop.systemd1",
-                        "/org/freedesktop/systemd1",
-                        "org.freedesktop.systemd1.Manager",
-                        "StartUnit",
-                        error,
-                        &reply,
-                        "ss", NULL, "replace-irreversibly");
+#if 0 /// elogind does it directly without depending on systemd running the system
+        if (m->shutdown_dry_run) {
+                log_info("Running in dry run, suppressing action.");
+                reset_scheduled_shutdown(m);
+        } else {
+                r = sd_bus_call_method(
+                                m->bus,
+                                "org.freedesktop.systemd1",
+                                "/org/freedesktop/systemd1",
+                                "org.freedesktop.systemd1.Manager",
+                                "StartUnit",
+                                error,
+                                &reply,
+                                "ss", unit_name, "replace-irreversibly");
+                if (r < 0)
+                        return r;
+
+                r = sd_bus_message_read(reply, "o", &p);
+                if (r < 0)
+                        return r;
+
+                c = strdup(p);
+                if (!c)
+                        return -ENOMEM;
+
+                m->action_unit = unit_name;
+                free(m->action_job);
+                m->action_job = c;
+                m->action_what = w;
+        }
 #else
         r = shutdown_or_sleep(m, action);
-#endif // 0
-        if (r < 0)
-                return r;
 
-/// elogind neither needs a dbus reply, nor supports systemd action jobs
-#if 0
-        r = sd_bus_message_read(reply, "o", &p);
+        /* no more pending actions, whether this failed or not */
+        m->pending_action = HANDLE_IGNORE;
+        m->action_what    = 0;
         if (r < 0)
                 return r;
-
-        c = strdup(p);
-        if (!c)
-                return -ENOMEM;
-
-        m->action_unit = unit_name;
-        free(m->action_job);
-        m->action_job = c;
-        m->action_what = w;
 #endif // 0
 
-        if (w == INHIBIT_SLEEP)
-                /* And we're back. */
-                send_prepare_for(m, w, false);
-
-        m->action_what = 0;
-
         /* Make sure the lid switch is ignored for a while */
         manager_set_lid_switch_ignore(m, now(CLOCK_MONOTONIC) + m->holdoff_timeout_usec);
 
@@ -1522,7 +1605,7 @@ static int execute_shutdown_or_sleep(
 
 int manager_dispatch_delayed(Manager *manager, bool timeout) {
 
-        _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
+        _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
         Inhibitor *offending = NULL;
         int r;
 
@@ -1608,6 +1691,28 @@ static int delay_shutdown_or_sleep(
         return 0;
 }
 
+static int send_prepare_for(Manager *m, InhibitWhat w, bool _active) {
+
+        static const char * const signal_name[_INHIBIT_WHAT_MAX] = {
+                [INHIBIT_SHUTDOWN] = "PrepareForShutdown",
+                [INHIBIT_SLEEP] = "PrepareForSleep"
+        };
+
+        int active = _active;
+
+        assert(m);
+        assert(w >= 0);
+        assert(w < _INHIBIT_WHAT_MAX);
+        assert(signal_name[w]);
+
+        return sd_bus_emit_signal(m->bus,
+                                  "/org/freedesktop/login1",
+                                  "org.freedesktop.login1.Manager",
+                                  signal_name[w],
+                                  "b",
+                                  active);
+}
+
 int bus_manager_shutdown_or_sleep_now_or_later(
                 Manager *m,
                 HandleAction action,
@@ -1650,7 +1755,7 @@ static int verify_shutdown_creds(
                 const char *action_ignore_inhibit,
                 sd_bus_error *error) {
 
-        _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
+        _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
         bool multiple_sessions, blocked;
         uid_t uid;
         int r;
@@ -1729,7 +1834,7 @@ static int method_do_shutdown_or_sleep(
                 return sd_bus_error_setf(error, BUS_ERROR_OPERATION_IN_PROGRESS, "There's already a shutdown or sleep operation in progress");
 
         if (sleep_verb) {
-                r = can_sleep(sleep_verb);
+                r = can_sleep(m, sleep_verb);
                 if (r < 0)
                         return r;
 
@@ -1801,7 +1906,7 @@ static int nologin_timeout_handler(
 
         log_info("Creating /run/nologin, blocking further logins...");
 
-        r = write_string_file("/run/nologin", "System is going down.", WRITE_STRING_FILE_CREATE|WRITE_STRING_FILE_ATOMIC);
+        r = write_string_file_atomic_label("/run/nologin", "System is going down.");
         if (r < 0)
                 log_error_errno(r, "Failed to create /run/nologin: %m");
         else
@@ -1859,8 +1964,8 @@ static int update_schedule_file(Manager *m) {
         return 0;
 
 fail:
-                (void) unlink(temp_path);
-                (void) unlink("/run/systemd/shutdown/scheduled");
+        (void) unlink(temp_path);
+        (void) unlink("/run/systemd/shutdown/scheduled");
 
         return log_error_errno(r, "Failed to write information about scheduled shutdowns: %m");
 }
@@ -1870,7 +1975,7 @@ static int manager_scheduled_shutdown_handler(
                         uint64_t usec,
                         void *userdata) {
 
-        _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
+        _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
         Manager *m = userdata;
         HandleAction action;
         int r;
@@ -1896,7 +2001,7 @@ static int manager_scheduled_shutdown_handler(
 
 static int method_schedule_shutdown(sd_bus_message *message, void *userdata, sd_bus_error *error) {
         Manager *m = userdata;
-        _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
+        _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
         const char *action_multiple_sessions = NULL;
         const char *action_ignore_inhibit = NULL;
         const char *action = NULL;
@@ -1911,6 +2016,11 @@ static int method_schedule_shutdown(sd_bus_message *message, void *userdata, sd_
         if (r < 0)
                 return r;
 
+        if (startswith(type, "dry-")) {
+                type += 4;
+                m->shutdown_dry_run = true;
+        }
+
         if (streq(type, "reboot")) {
                 action = "org.freedesktop.login1.reboot";
                 action_multiple_sessions = "org.freedesktop.login1.reboot-multiple-sessions";
@@ -1920,9 +2030,9 @@ static int method_schedule_shutdown(sd_bus_message *message, void *userdata, sd_
                 action_multiple_sessions = "org.freedesktop.login1.halt-multiple-sessions";
                 action_ignore_inhibit = "org.freedesktop.login1.halt-ignore-inhibit";
         } else if (streq(type, "poweroff")) {
-                action = "org.freedesktop.login1.poweroff";
-                action_multiple_sessions = "org.freedesktop.login1.poweroff-multiple-sessions";
-                action_ignore_inhibit = "org.freedesktop.login1.poweroff-ignore-inhibit";
+                action = "org.freedesktop.login1.power-off";
+                action_multiple_sessions = "org.freedesktop.login1.power-off-multiple-sessions";
+                action_ignore_inhibit = "org.freedesktop.login1.power-off-ignore-inhibit";
         } else
                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unsupported shutdown type");
 
@@ -1971,7 +2081,7 @@ static int method_schedule_shutdown(sd_bus_message *message, void *userdata, sd_
 
         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;
+                const char *tty = NULL;
 
                 (void) sd_bus_creds_get_uid(creds, &m->scheduled_shutdown_uid);
                 (void) sd_bus_creds_get_tty(creds, &tty);
@@ -1983,9 +2093,11 @@ static int method_schedule_shutdown(sd_bus_message *message, void *userdata, sd_
                 }
         }
 
+#if 0 /// elogind does not support utmp-wtmp
         r = manager_setup_wall_message_timer(m);
         if (r < 0)
                 return r;
+#endif // 0
 
         if (!isempty(type)) {
                 r = update_schedule_file(m);
@@ -2005,20 +2117,11 @@ static int method_cancel_scheduled_shutdown(sd_bus_message *message, void *userd
         assert(message);
 
         cancelled = m->scheduled_shutdown_type != NULL;
+        reset_scheduled_shutdown(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_type = mfree(m->scheduled_shutdown_type);
-        m->scheduled_shutdown_timeout = 0;
-
-        if (m->unlink_nologin) {
-                (void) unlink("/run/nologin");
-                m->unlink_nologin = false;
-        }
-
+#if 0 /// elogind does not support utmp-wtmp
         if (cancelled) {
-                _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
+                _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
                 const char *tty = NULL;
                 uid_t uid = 0;
                 int r;
@@ -2030,8 +2133,9 @@ static int method_cancel_scheduled_shutdown(sd_bus_message *message, void *userd
                 }
 
                 utmp_wall("The system shutdown has been cancelled",
-                          lookup_uid(uid), tty, logind_wall_tty_filter, m);
+                          uid_to_name(uid), tty, logind_wall_tty_filter, m);
         }
+#endif // 0
 
         return sd_bus_reply_method_return(message, "b", cancelled);
 }
@@ -2074,7 +2178,7 @@ static int method_can_shutdown_or_sleep(
                 const char *sleep_verb,
                 sd_bus_error *error) {
 
-        _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
+        _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
         bool multiple_sessions, challenge, blocked;
         const char *result = NULL;
         uid_t uid;
@@ -2089,7 +2193,7 @@ static int method_can_shutdown_or_sleep(
         assert(action_ignore_inhibit);
 
         if (sleep_verb) {
-                r = can_sleep(sleep_verb);
+                r = can_sleep(m, sleep_verb);
                 if (r < 0)
                         return r;
                 if (r == 0)
@@ -2229,6 +2333,7 @@ static int property_get_reboot_to_firmware_setup(
                 sd_bus_message *reply,
                 void *userdata,
                 sd_bus_error *error) {
+#if 0 /// elogind does not support EFI
         int r;
 
         assert(bus);
@@ -2240,6 +2345,9 @@ static int property_get_reboot_to_firmware_setup(
                 return r;
 
         return sd_bus_message_append(reply, "b", r > 0);
+#else
+        return sd_bus_message_append(reply, "b", -EOPNOTSUPP);
+#endif // 0
 }
 
 static int method_set_reboot_to_firmware_setup(
@@ -2270,9 +2378,11 @@ static int method_set_reboot_to_firmware_setup(
         if (r == 0)
                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
 
+#if 0 /// elogind does not support EFI
         r = efi_set_reboot_to_firmware(b);
         if (r < 0)
                 return r;
+#endif // 0
 
         return sd_bus_reply_method_return(message, NULL);
 }
@@ -2282,6 +2392,7 @@ static int method_can_reboot_to_firmware_setup(
                 void *userdata,
                 sd_bus_error *error) {
 
+#if 0 /// elogind does not support EFI
         int r;
         bool challenge;
         const char *result;
@@ -2314,6 +2425,9 @@ static int method_can_reboot_to_firmware_setup(
                 result = "no";
 
         return sd_bus_reply_method_return(message, "s", result);
+#else
+        return sd_bus_reply_method_return(message, "s", "na");
+#endif // 0
 }
 
 static int method_set_wall_message(
@@ -2360,7 +2474,7 @@ static int method_set_wall_message(
 }
 
 static int method_inhibit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
-        _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
+        _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;
@@ -2430,6 +2544,9 @@ static int method_inhibit(sd_bus_message *message, void *userdata, sd_bus_error
         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);
 
@@ -2500,6 +2617,13 @@ const sd_bus_vtable manager_vtable[] = {
         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("RemoveIPC", "b", bus_property_get_bool, offsetof(Manager, remove_ipc), SD_BUS_VTABLE_PROPERTY_CONST),
+        SD_BUS_PROPERTY("RuntimeDirectorySize", "t", bus_property_get_size, offsetof(Manager, runtime_dir_size), 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_current_inhibitors, 0, 0),
+        SD_BUS_PROPERTY("SessionsMax", "t", NULL, offsetof(Manager, sessions_max), SD_BUS_VTABLE_PROPERTY_CONST),
+        SD_BUS_PROPERTY("NCurrentSessions", "t", property_get_current_sessions, 0, 0),
+        SD_BUS_PROPERTY("UserTasksMax", "t", NULL, offsetof(Manager, user_tasks_max), SD_BUS_VTABLE_PROPERTY_CONST),
 
         SD_BUS_METHOD("GetSession", "s", "o", method_get_session, SD_BUS_VTABLE_UNPRIVILEGED),
         SD_BUS_METHOD("GetSessionByPID", "u", "o", method_get_session_by_pid, SD_BUS_VTABLE_UNPRIVILEGED),
@@ -2555,8 +2679,7 @@ const sd_bus_vtable manager_vtable[] = {
         SD_BUS_VTABLE_END
 };
 
-/// UNNEEDED by elogind
-#if 0
+#if 0 /// UNNEEDED by elogind
 static int session_jobs_reply(Session *s, const char *unit, const char *result) {
         int r = 0;
 
@@ -2569,7 +2692,7 @@ static int session_jobs_reply(Session *s, const char *unit, const char *result)
         if (streq(result, "done"))
                 r = session_send_create_reply(s, NULL);
         else {
-                _cleanup_bus_error_free_ sd_bus_error e = SD_BUS_ERROR_NULL;
+                _cleanup_(sd_bus_error_free) sd_bus_error e = SD_BUS_ERROR_NULL;
 
                 sd_bus_error_setf(&e, BUS_ERROR_JOB_FAILED, "Start job for unit %s failed with '%s'", unit, result);
                 r = session_send_create_reply(s, &e);
@@ -2608,11 +2731,8 @@ int match_job_removed(sd_bus_message *message, void *userdata, sd_bus_error *err
         }
 
         session = hashmap_get(m->session_units, unit);
-        if (session) {
-
-                if (streq_ptr(path, session->scope_job))
-                        session->scope_job = mfree(session->scope_job);
-
+        if (session && streq_ptr(path, session->scope_job)) {
+                session->scope_job = mfree(session->scope_job);
                 session_jobs_reply(session, unit, result);
 
                 session_save(session);
@@ -2621,7 +2741,9 @@ int match_job_removed(sd_bus_message *message, void *userdata, sd_bus_error *err
         }
 
         user = hashmap_get(m->user_units, unit);
-        if (user) {
+        if (user &&
+            (streq_ptr(path, user->service_job) ||
+             streq_ptr(path, user->slice_job))) {
 
                 if (streq_ptr(path, user->service_job))
                         user->service_job = mfree(user->service_job);
@@ -2742,19 +2864,110 @@ int manager_send_changed(Manager *manager, const char *property, ...) {
                         l);
 }
 
-/// UNNEEDED by elogind
-#if 0
+#if 0 /// UNNEEDED by elogind
+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_slice(
+                Manager *manager,
+                const char *slice,
+                const char *description,
+                const char *after,
+                const char *after2,
+                uint64_t tasks_max,
+                sd_bus_error *error,
+                char **job) {
+
+        _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL;
+        int r;
+
+        assert(manager);
+        assert(slice);
+
+        r = sd_bus_message_new_method_call(
+                        manager->bus,
+                        &m,
+                        "org.freedesktop.systemd1",
+                        "/org/freedesktop/systemd1",
+                        "org.freedesktop.systemd1.Manager",
+                        "StartTransientUnit");
+        if (r < 0)
+                return r;
+
+        r = sd_bus_message_append(m, "ss", strempty(slice), "fail");
+        if (r < 0)
+                return r;
+
+        r = sd_bus_message_open_container(m, 'a', "(sv)");
+        if (r < 0)
+                return r;
+
+        if (!isempty(description)) {
+                r = sd_bus_message_append(m, "(sv)", "Description", "s", description);
+                if (r < 0)
+                        return r;
+        }
+
+        if (!isempty(after)) {
+                r = sd_bus_message_append(m, "(sv)", "After", "as", 1, after);
+                if (r < 0)
+                        return r;
+        }
+
+        if (!isempty(after2)) {
+                r = sd_bus_message_append(m, "(sv)", "After", "as", 1, after2);
+                if (r < 0)
+                        return r;
+        }
+
+        r = sd_bus_message_append(m, "(sv)", "TasksMax", "t", tasks_max);
+        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;
+
+        if (job)
+                return strdup_job(reply, job);
+        return 1;
+}
+
 int manager_start_scope(
                 Manager *manager,
                 const char *scope,
                 pid_t pid,
                 const char *slice,
                 const char *description,
-                const char *after, const char *after2,
+                const char *after,
+                const char *after2,
+                uint64_t tasks_max,
                 sd_bus_error *error,
                 char **job) {
 
-        _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
+        _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL;
         int r;
 
         assert(manager);
@@ -2818,6 +3031,10 @@ int manager_start_scope(
         if (r < 0)
                 return r;
 
+        r = sd_bus_message_append(m, "(sv)", "TasksMax", "t", tasks_max);
+        if (r < 0)
+                return r;
+
         r = sd_bus_message_close_container(m);
         if (r < 0)
                 return r;
@@ -2830,26 +3047,13 @@ int manager_start_scope(
         if (r < 0)
                 return r;
 
-        if (job) {
-                const char *j;
-                char *copy;
-
-                r = sd_bus_message_read(reply, "o", &j);
-                if (r < 0)
-                        return r;
-
-                copy = strdup(j);
-                if (!copy)
-                        return -ENOMEM;
-
-                *job = copy;
-        }
-
+        if (job)
+                return strdup_job(reply, job);
         return 1;
 }
 
 int manager_start_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job) {
-        _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
+        _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
         int r;
 
         assert(manager);
@@ -2867,26 +3071,13 @@ int manager_start_unit(Manager *manager, const char *unit, sd_bus_error *error,
         if (r < 0)
                 return r;
 
-        if (job) {
-                const char *j;
-                char *copy;
-
-                r = sd_bus_message_read(reply, "o", &j);
-                if (r < 0)
-                        return r;
-
-                copy = strdup(j);
-                if (!copy)
-                        return -ENOMEM;
-
-                *job = copy;
-        }
-
+        if (job)
+                return strdup_job(reply, job);
         return 1;
 }
 
 int manager_stop_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job) {
-        _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
+        _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
         int r;
 
         assert(manager);
@@ -2915,21 +3106,8 @@ int manager_stop_unit(Manager *manager, const char *unit, sd_bus_error *error, c
                 return r;
         }
 
-        if (job) {
-                const char *j;
-                char *copy;
-
-                r = sd_bus_message_read(reply, "o", &j);
-                if (r < 0)
-                        return r;
-
-                copy = strdup(j);
-                if (!copy)
-                        return -ENOMEM;
-
-                *job = copy;
-        }
-
+        if (job)
+                return strdup_job(reply, job);
         return 1;
 }
 
@@ -2983,8 +3161,8 @@ int manager_kill_unit(Manager *manager, const char *unit, KillWho who, int signo
 }
 
 int manager_unit_is_active(Manager *manager, const char *unit) {
-        _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
-        _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
+        _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;
@@ -3029,8 +3207,8 @@ int manager_unit_is_active(Manager *manager, const char *unit) {
 }
 
 int manager_job_is_active(Manager *manager, const char *path) {
-        _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
-        _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
+        _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);
@@ -3061,4 +3239,4 @@ int manager_job_is_active(Manager *manager, const char *path) {
 
         return true;
 }
-#endif //
+#endif // 0