Adding upstream version 255.4.upstream/255.4

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 850 insertions, 0 deletions

diff --git a/src/login/logind-core.c b/src/login/logind-core.c
new file mode 100644
index 0000000..f15008e
--- /dev/null
+++ b/src/login/logind-core.c
@@ -0,0 +1,850 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <linux/vt.h>
+
+#include "sd-device.h"
+
+#include "alloc-util.h"
+#include "battery-util.h"
+#include "bus-error.h"
+#include "bus-locator.h"
+#include "bus-util.h"
+#include "cgroup-util.h"
+#include "conf-parser.h"
+#include "device-util.h"
+#include "efi-loader.h"
+#include "errno-util.h"
+#include "fd-util.h"
+#include "limits-util.h"
+#include "logind.h"
+#include "parse-util.h"
+#include "path-util.h"
+#include "process-util.h"
+#include "stdio-util.h"
+#include "strv.h"
+#include "terminal-util.h"
+#include "udev-util.h"
+#include "user-util.h"
+#include "userdb.h"
+#include "utmp-wtmp.h"
+
+void manager_reset_config(Manager *m) {
+        assert(m);
+
+        m->n_autovts = 6;
+        m->reserve_vt = 6;
+        m->remove_ipc = true;
+        m->inhibit_delay_max = 5 * USEC_PER_SEC;
+        m->user_stop_delay = 10 * USEC_PER_SEC;
+
+        m->handle_power_key = HANDLE_POWEROFF;
+        m->handle_power_key_long_press = HANDLE_IGNORE;
+        m->handle_reboot_key = HANDLE_REBOOT;
+        m->handle_reboot_key_long_press = HANDLE_POWEROFF;
+        m->handle_suspend_key = HANDLE_SUSPEND;
+        m->handle_suspend_key_long_press = HANDLE_HIBERNATE;
+        m->handle_hibernate_key = HANDLE_HIBERNATE;
+        m->handle_hibernate_key_long_press = HANDLE_IGNORE;
+
+        m->handle_lid_switch = HANDLE_SUSPEND;
+        m->handle_lid_switch_ep = _HANDLE_ACTION_INVALID;
+        m->handle_lid_switch_docked = HANDLE_IGNORE;
+
+        m->power_key_ignore_inhibited = false;
+        m->suspend_key_ignore_inhibited = false;
+        m->hibernate_key_ignore_inhibited = false;
+        m->lid_switch_ignore_inhibited = true;
+        m->reboot_key_ignore_inhibited = false;
+
+        m->holdoff_timeout_usec = 30 * USEC_PER_SEC;
+
+        m->idle_action_usec = 30 * USEC_PER_MINUTE;
+        m->idle_action = HANDLE_IGNORE;
+
+        m->runtime_dir_size = physical_memory_scale(10U, 100U); /* 10% */
+        m->runtime_dir_inodes = DIV_ROUND_UP(m->runtime_dir_size, 4096); /* 4k per inode */
+        m->sessions_max = 8192;
+        m->inhibitors_max = 8192;
+
+        m->kill_user_processes = KILL_USER_PROCESSES;
+
+        m->kill_only_users = strv_free(m->kill_only_users);
+        m->kill_exclude_users = strv_free(m->kill_exclude_users);
+
+        m->stop_idle_session_usec = USEC_INFINITY;
+}
+
+int manager_parse_config_file(Manager *m) {
+        assert(m);
+
+        return config_parse_config_file("logind.conf", "Login\0",
+                                        config_item_perf_lookup, logind_gperf_lookup,
+                                        CONFIG_PARSE_WARN, m);
+}
+
+int manager_add_device(Manager *m, const char *sysfs, bool master, Device **ret_device) {
+        Device *d;
+
+        assert(m);
+        assert(sysfs);
+
+        d = hashmap_get(m->devices, sysfs);
+        if (d)
+                /* we support adding master-flags, but not removing them */
+                d->master = d->master || master;
+        else {
+                d = device_new(m, sysfs, master);
+                if (!d)
+                        return -ENOMEM;
+        }
+
+        if (ret_device)
+                *ret_device = d;
+
+        return 0;
+}
+
+int manager_add_seat(Manager *m, const char *id, Seat **ret_seat) {
+        Seat *s;
+        int r;
+
+        assert(m);
+        assert(id);
+
+        s = hashmap_get(m->seats, id);
+        if (!s) {
+                r = seat_new(&s, m, id);
+                if (r < 0)
+                        return r;
+        }
+
+        if (ret_seat)
+                *ret_seat = s;
+
+        return 0;
+}
+
+int manager_add_session(Manager *m, const char *id, Session **ret_session) {
+        Session *s;
+        int r;
+
+        assert(m);
+        assert(id);
+
+        s = hashmap_get(m->sessions, id);
+        if (!s) {
+                r = session_new(&s, m, id);
+                if (r < 0)
+                        return r;
+        }
+
+        if (ret_session)
+                *ret_session = s;
+
+        return 0;
+}
+
+int manager_add_user(
+                Manager *m,
+                UserRecord *ur,
+                User **ret_user) {
+
+        User *u;
+        int r;
+
+        assert(m);
+        assert(ur);
+
+        u = hashmap_get(m->users, UID_TO_PTR(ur->uid));
+        if (!u) {
+                r = user_new(&u, m, ur);
+                if (r < 0)
+                        return r;
+        }
+
+        if (ret_user)
+                *ret_user = u;
+
+        return 0;
+}
+
+int manager_add_user_by_name(
+                Manager *m,
+                const char *name,
+                User **ret_user) {
+
+        _cleanup_(user_record_unrefp) UserRecord *ur = NULL;
+        int r;
+
+        assert(m);
+        assert(name);
+
+        r = userdb_by_name(name, USERDB_SUPPRESS_SHADOW, &ur);
+        if (r < 0)
+                return r;
+
+        return manager_add_user(m, ur, ret_user);
+}
+
+int manager_add_user_by_uid(
+                Manager *m,
+                uid_t uid,
+                User **ret_user) {
+
+        _cleanup_(user_record_unrefp) UserRecord *ur = NULL;
+        int r;
+
+        assert(m);
+        assert(uid_is_valid(uid));
+
+        r = userdb_by_uid(uid, USERDB_SUPPRESS_SHADOW, &ur);
+        if (r < 0)
+                return r;
+
+        return manager_add_user(m, ur, ret_user);
+}
+
+int manager_add_inhibitor(Manager *m, const char* id, Inhibitor **ret) {
+        Inhibitor *i;
+        int r;
+
+        assert(m);
+        assert(id);
+
+        i = hashmap_get(m->inhibitors, id);
+        if (!i) {
+                r = inhibitor_new(&i, m, id);
+                if (r < 0)
+                        return r;
+        }
+
+        if (ret)
+                *ret = i;
+
+        return 0;
+}
+
+int manager_add_button(Manager *m, const char *name, Button **ret_button) {
+        Button *b;
+
+        assert(m);
+        assert(name);
+
+        b = hashmap_get(m->buttons, name);
+        if (!b) {
+                b = button_new(m, name);
+                if (!b)
+                        return -ENOMEM;
+        }
+
+        if (ret_button)
+                *ret_button = b;
+
+        return 0;
+}
+
+int manager_process_seat_device(Manager *m, sd_device *d) {
+        Device *device;
+        int r;
+
+        assert(m);
+
+        if (device_for_action(d, SD_DEVICE_REMOVE) ||
+            sd_device_has_current_tag(d, "seat") <= 0) {
+                const char *syspath;
+
+                r = sd_device_get_syspath(d, &syspath);
+                if (r < 0)
+                        return 0;
+
+                device = hashmap_get(m->devices, syspath);
+                if (!device)
+                        return 0;
+
+                seat_add_to_gc_queue(device->seat);
+                device_free(device);
+
+        } else {
+                const char *sn, *syspath;
+                bool master;
+                Seat *seat;
+
+                if (sd_device_get_property_value(d, "ID_SEAT", &sn) < 0 || isempty(sn))
+                        sn = "seat0";
+
+                if (!seat_name_is_valid(sn)) {
+                        log_device_warning(d, "Device with invalid seat name %s found, ignoring.", sn);
+                        return 0;
+                }
+
+                seat = hashmap_get(m->seats, sn);
+                master = sd_device_has_current_tag(d, "master-of-seat") > 0;
+
+                /* Ignore non-master devices for unknown seats */
+                if (!master && !seat)
+                        return 0;
+
+                r = sd_device_get_syspath(d, &syspath);
+                if (r < 0)
+                        return r;
+
+                r = manager_add_device(m, syspath, master, &device);
+                if (r < 0)
+                        return r;
+
+                if (!seat) {
+                        r = manager_add_seat(m, sn, &seat);
+                        if (r < 0) {
+                                if (!device->seat)
+                                        device_free(device);
+
+                                return r;
+                        }
+                }
+
+                device_attach(device, seat);
+                seat_start(seat);
+        }
+
+        return 0;
+}
+
+int manager_process_button_device(Manager *m, sd_device *d) {
+        const char *sysname;
+        Button *b;
+        int r;
+
+        assert(m);
+
+        r = sd_device_get_sysname(d, &sysname);
+        if (r < 0)
+                return r;
+
+        if (device_for_action(d, SD_DEVICE_REMOVE) ||
+            sd_device_has_current_tag(d, "power-switch") <= 0)
+
+                button_free(hashmap_get(m->buttons, sysname));
+
+        else {
+                const char *sn;
+
+                r = manager_add_button(m, sysname, &b);
+                if (r < 0)
+                        return r;
+
+                if (sd_device_get_property_value(d, "ID_SEAT", &sn) < 0 || isempty(sn))
+                        sn = "seat0";
+
+                button_set_seat(b, sn);
+
+                r = button_open(b);
+                if (r < 0) /* event device doesn't have any keys or switches relevant to us? (or any other error
+                            * opening the device?) let's close the button again. */
+                        button_free(b);
+        }
+
+        return 0;
+}
+
+int manager_get_session_by_pidref(Manager *m, const PidRef *pid, Session **ret) {
+        _cleanup_free_ char *unit = NULL;
+        Session *s;
+        int r;
+
+        assert(m);
+
+        if (!pidref_is_set(pid))
+                return -EINVAL;
+
+        s = hashmap_get(m->sessions_by_leader, pid);
+        if (s) {
+                r = pidref_verify(pid);
+                if (r < 0)
+                        return r;
+        } else {
+                r = cg_pidref_get_unit(pid, &unit);
+                if (r < 0)
+                        return r;
+
+                s = hashmap_get(m->session_units, unit);
+        }
+
+        if (ret)
+                *ret = s;
+
+        return !!s;
+}
+
+int manager_get_user_by_pid(Manager *m, pid_t pid, User **ret) {
+        _cleanup_free_ char *unit = NULL;
+        User *u = NULL;
+        int r;
+
+        assert(m);
+
+        if (!pid_is_valid(pid))
+                return -EINVAL;
+
+        r = cg_pid_get_slice(pid, &unit);
+        if (r >= 0)
+                u = hashmap_get(m->user_units, unit);
+
+        if (ret)
+                *ret = u;
+
+        return !!u;
+}
+
+int manager_get_idle_hint(Manager *m, dual_timestamp *t) {
+        Session *s;
+        bool idle_hint;
+        dual_timestamp ts = DUAL_TIMESTAMP_NULL;
+
+        assert(m);
+
+        idle_hint = !manager_is_inhibited(m, INHIBIT_IDLE, INHIBIT_BLOCK, t, false, false, 0, NULL);
+
+        HASHMAP_FOREACH(s, m->sessions) {
+                dual_timestamp k;
+                int ih;
+
+                ih = session_get_idle_hint(s, &k);
+                if (ih < 0)
+                        return ih;
+
+                if (!ih) {
+                        if (!idle_hint) {
+                                if (k.monotonic < ts.monotonic)
+                                        ts = k;
+                        } else {
+                                idle_hint = false;
+                                ts = k;
+                        }
+                } else if (idle_hint) {
+
+                        if (k.monotonic > ts.monotonic)
+                                ts = k;
+                }
+        }
+
+        if (t)
+                *t = ts;
+
+        return idle_hint;
+}
+
+bool manager_shall_kill(Manager *m, const char *user) {
+        assert(m);
+        assert(user);
+
+        if (!m->kill_exclude_users && streq(user, "root"))
+                return false;
+
+        if (strv_contains(m->kill_exclude_users, user))
+                return false;
+
+        if (!strv_isempty(m->kill_only_users))
+                return strv_contains(m->kill_only_users, user);
+
+        return m->kill_user_processes;
+}
+
+int config_parse_n_autovts(
+                const char *unit,
+                const char *filename,
+                unsigned line,
+                const char *section,
+                unsigned section_line,
+                const char *lvalue,
+                int ltype,
+                const char *rvalue,
+                void *data,
+                void *userdata) {
+
+        unsigned *n = ASSERT_PTR(data);
+        unsigned o;
+        int r;
+
+        assert(filename);
+        assert(lvalue);
+        assert(rvalue);
+
+        r = safe_atou(rvalue, &o);
+        if (r < 0) {
+                log_syntax(unit, LOG_WARNING, filename, line, r,
+                           "Failed to parse number of autovts, ignoring: %s", rvalue);
+                return 0;
+        }
+
+        if (o > 15) {
+                log_syntax(unit, LOG_WARNING, filename, line, 0,
+                           "A maximum of 15 autovts are supported, ignoring: %s", rvalue);
+                return 0;
+        }
+
+        *n = o;
+        return 0;
+}
+
+static int vt_is_busy(unsigned vtnr) {
+        struct vt_stat vt_stat;
+        int r;
+        _cleanup_close_ int fd = -EBADF;
+
+        assert(vtnr >= 1);
+
+        /* VT_GETSTATE "cannot return state for more than 16 VTs, since v_state is short" */
+        assert(vtnr <= 15);
+
+        /* We explicitly open /dev/tty1 here instead of /dev/tty0. If
+         * we'd open the latter we'd open the foreground tty which
+         * hence would be unconditionally busy. By opening /dev/tty1
+         * we avoid this. Since tty1 is special and needs to be an
+         * explicitly loaded getty or DM this is safe. */
+
+        fd = open_terminal("/dev/tty1", O_RDWR|O_NOCTTY|O_CLOEXEC);
+        if (fd < 0)
+                return -errno;
+
+        if (ioctl(fd, VT_GETSTATE, &vt_stat) < 0)
+                r = -errno;
+        else
+                r = !!(vt_stat.v_state & (1 << vtnr));
+
+        return r;
+}
+
+int manager_spawn_autovt(Manager *m, unsigned vtnr) {
+        _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+        char name[sizeof("autovt@tty.service") + DECIMAL_STR_MAX(unsigned)];
+        int r;
+
+        assert(m);
+        assert(vtnr >= 1);
+
+        if (vtnr > m->n_autovts &&
+            vtnr != m->reserve_vt)
+                return 0;
+
+        if (vtnr != m->reserve_vt) {
+                /* If this is the reserved TTY, we'll start the getty
+                 * on it in any case, but otherwise only if it is not
+                 * busy. */
+
+                r = vt_is_busy(vtnr);
+                if (r < 0)
+                        return r;
+                else if (r > 0)
+                        return -EBUSY;
+        }
+
+        xsprintf(name, "autovt@tty%u.service", vtnr);
+        r = bus_call_method(m->bus, bus_systemd_mgr, "StartUnit", &error, NULL, "ss", name, "fail");
+        if (r < 0)
+                return log_error_errno(r, "Failed to start %s: %s", name, bus_error_message(&error, r));
+
+        return 0;
+}
+
+bool manager_is_lid_closed(Manager *m) {
+        Button *b;
+
+        HASHMAP_FOREACH(b, m->buttons)
+                if (b->lid_closed)
+                        return true;
+
+        return false;
+}
+
+static bool manager_is_docked(Manager *m) {
+        Button *b;
+
+        HASHMAP_FOREACH(b, m->buttons)
+                if (b->docked)
+                        return true;
+
+        return false;
+}
+
+static int manager_count_external_displays(Manager *m) {
+        _cleanup_(sd_device_enumerator_unrefp) sd_device_enumerator *e = NULL;
+        int r, n = 0;
+
+        r = sd_device_enumerator_new(&e);
+        if (r < 0)
+                return r;
+
+        r = sd_device_enumerator_allow_uninitialized(e);
+        if (r < 0)
+                return r;
+
+        r = sd_device_enumerator_add_match_subsystem(e, "drm", true);
+        if (r < 0)
+                return r;
+
+        FOREACH_DEVICE(e, d) {
+                const char *status, *enabled, *dash, *nn, *subsys;
+                sd_device *p;
+
+                if (sd_device_get_parent(d, &p) < 0)
+                        continue;
+
+                /* If the parent shares the same subsystem as the
+                 * device we are looking at then it is a connector,
+                 * which is what we are interested in. */
+                if (sd_device_get_subsystem(p, &subsys) < 0 || !streq(subsys, "drm"))
+                        continue;
+
+                if (sd_device_get_sysname(d, &nn) < 0)
+                        continue;
+
+                /* Ignore internal displays: the type is encoded in the sysfs name, as the second dash
+                 * separated item (the first is the card name, the last the connector number). We implement a
+                 * deny list of external displays here, rather than an allow list of internal ones, to ensure
+                 * we don't block suspends too eagerly. */
+                dash = strchr(nn, '-');
+                if (!dash)
+                        continue;
+
+                dash++;
+                if (!STARTSWITH_SET(dash,
+                                    "VGA-", "DVI-I-", "DVI-D-", "DVI-A-"
+                                    "Composite-", "SVIDEO-", "Component-",
+                                    "DIN-", "DP-", "HDMI-A-", "HDMI-B-", "TV-"))
+                        continue;
+
+                /* Ignore ports that are not enabled */
+                if (sd_device_get_sysattr_value(d, "enabled", &enabled) < 0 || !streq(enabled, "enabled"))
+                        continue;
+
+                /* We count any connector which is not explicitly
+                 * "disconnected" as connected. */
+                if (sd_device_get_sysattr_value(d, "status", &status) < 0 || !streq(status, "disconnected"))
+                        n++;
+        }
+
+        return n;
+}
+
+bool manager_is_docked_or_external_displays(Manager *m) {
+        int n;
+
+        /* If we are docked don't react to lid closing */
+        if (manager_is_docked(m)) {
+                log_debug("System is docked.");
+                return true;
+        }
+
+        /* If we have more than one display connected,
+         * assume that we are docked. */
+        n = manager_count_external_displays(m);
+        if (n < 0)
+                log_warning_errno(n, "Display counting failed: %m");
+        else if (n >= 1) {
+                log_debug("External (%i) displays connected.", n);
+                return true;
+        }
+
+        return false;
+}
+
+bool manager_is_on_external_power(void) {
+        int r;
+
+        /* For now we only check for AC power, but 'external power' can apply to anything that isn't an internal
+         * battery */
+        r = on_ac_power();
+        if (r < 0)
+                log_warning_errno(r, "Failed to read AC power status: %m");
+
+        return r != 0; /* Treat failure as 'on AC' */
+}
+
+bool manager_all_buttons_ignored(Manager *m) {
+        assert(m);
+
+        if (m->handle_power_key != HANDLE_IGNORE)
+                return false;
+        if (m->handle_power_key_long_press != HANDLE_IGNORE)
+                return false;
+        if (m->handle_suspend_key != HANDLE_IGNORE)
+                return false;
+        if (m->handle_suspend_key_long_press != HANDLE_IGNORE)
+                return false;
+        if (m->handle_hibernate_key != HANDLE_IGNORE)
+                return false;
+        if (m->handle_hibernate_key_long_press != HANDLE_IGNORE)
+                return false;
+        if (m->handle_reboot_key != HANDLE_IGNORE)
+                return false;
+        if (m->handle_reboot_key_long_press != HANDLE_IGNORE)
+                return false;
+        if (m->handle_lid_switch != HANDLE_IGNORE)
+                return false;
+        if (!IN_SET(m->handle_lid_switch_ep, _HANDLE_ACTION_INVALID, HANDLE_IGNORE))
+                return false;
+        if (m->handle_lid_switch_docked != HANDLE_IGNORE)
+                return false;
+
+        return true;
+}
+
+int manager_read_utmp(Manager *m) {
+#if ENABLE_UTMP
+        int r;
+        _unused_ _cleanup_(utxent_cleanup) bool utmpx = false;
+
+        assert(m);
+
+        if (utmpxname(_PATH_UTMPX) < 0)
+                return log_error_errno(errno, "Failed to set utmp path to " _PATH_UTMPX ": %m");
+
+        utmpx = utxent_start();
+
+        for (;;) {
+                _cleanup_free_ char *t = NULL;
+                struct utmpx *u;
+                const char *c;
+                Session *s;
+
+                errno = 0;
+                u = getutxent();
+                if (!u) {
+                        if (errno == ENOENT)
+                                log_debug_errno(errno, _PATH_UTMPX " does not exist, ignoring.");
+                        else if (errno != 0)
+                                log_warning_errno(errno, "Failed to read " _PATH_UTMPX ", ignoring: %m");
+                        return 0;
+                }
+
+                if (u->ut_type != USER_PROCESS)
+                        continue;
+
+                if (!pid_is_valid(u->ut_pid))
+                        continue;
+
+                t = strndup(u->ut_line, sizeof(u->ut_line));
+                if (!t)
+                        return log_oom();
+
+                c = path_startswith(t, "/dev/");
+                if (c) {
+                        r = free_and_strdup(&t, c);
+                        if (r < 0)
+                                return log_oom();
+                }
+
+                if (isempty(t))
+                        continue;
+
+                if (manager_get_session_by_pidref(m, &PIDREF_MAKE_FROM_PID(u->ut_pid), &s) <= 0)
+                        continue;
+
+                if (s->tty_validity == TTY_FROM_UTMP && !streq_ptr(s->tty, t)) {
+                        /* This may happen on multiplexed SSH connection (i.e. 'SSH connection sharing'). In
+                         * this case PAM and utmp sessions don't match. In such a case let's invalidate the TTY
+                         * information and never acquire it again. */
+
+                        s->tty = mfree(s->tty);
+                        s->tty_validity = TTY_UTMP_INCONSISTENT;
+                        log_debug("Session '%s' has inconsistent TTY information, dropping TTY information.", s->id);
+                        continue;
+                }
+
+                /* Never override what we figured out once */
+                if (s->tty || s->tty_validity >= 0)
+                        continue;
+
+                s->tty = TAKE_PTR(t);
+                s->tty_validity = TTY_FROM_UTMP;
+                log_debug("Acquired TTY information '%s' from utmp for session '%s'.", s->tty, s->id);
+        }
+
+#else
+        return 0;
+#endif
+}
+
+#if ENABLE_UTMP
+static int manager_dispatch_utmp(sd_event_source *s, const struct inotify_event *event, void *userdata) {
+        Manager *m = ASSERT_PTR(userdata);
+
+        /* If there's indication the file itself might have been removed or became otherwise unavailable, then let's
+         * reestablish the watch on whatever there's now. */
+        if ((event->mask & (IN_ATTRIB|IN_DELETE_SELF|IN_MOVE_SELF|IN_Q_OVERFLOW|IN_UNMOUNT)) != 0)
+                manager_connect_utmp(m);
+
+        (void) manager_read_utmp(m);
+        return 0;
+}
+#endif
+
+void manager_connect_utmp(Manager *m) {
+#if ENABLE_UTMP
+        sd_event_source *s = NULL;
+        int r;
+
+        assert(m);
+
+        /* Watch utmp for changes via inotify. We do this to deal with tools such as ssh, which will register the PAM
+         * session early, and acquire a TTY only much later for the connection. Thus during PAM the TTY won't be known
+         * yet. ssh will register itself with utmp when it finally acquired the TTY. Hence, let's make use of this, and
+         * watch utmp for the TTY asynchronously. We use the PAM session's leader PID as key, to find the right entry.
+         *
+         * Yes, relying on utmp is pretty ugly, but it's good enough for informational purposes, as well as idle
+         * detection (which, for tty sessions, relies on the TTY used) */
+
+        r = sd_event_add_inotify(m->event, &s, _PATH_UTMPX, IN_MODIFY|IN_MOVE_SELF|IN_DELETE_SELF|IN_ATTRIB, manager_dispatch_utmp, m);
+        if (r < 0)
+                log_full_errno(r == -ENOENT ? LOG_DEBUG: LOG_WARNING, r, "Failed to create inotify watch on " _PATH_UTMPX ", ignoring: %m");
+        else {
+                r = sd_event_source_set_priority(s, SD_EVENT_PRIORITY_IDLE);
+                if (r < 0)
+                        log_warning_errno(r, "Failed to adjust utmp event source priority, ignoring: %m");
+
+                (void) sd_event_source_set_description(s, "utmp");
+        }
+
+        sd_event_source_unref(m->utmp_event_source);
+        m->utmp_event_source = s;
+#endif
+}
+
+void manager_reconnect_utmp(Manager *m) {
+#if ENABLE_UTMP
+        assert(m);
+
+        if (m->utmp_event_source)
+                return;
+
+        manager_connect_utmp(m);
+#endif
+}
+
+int manager_read_efi_boot_loader_entries(Manager *m) {
+#if ENABLE_EFI
+        int r;
+
+        assert(m);
+        if (m->efi_boot_loader_entries_set)
+                return 0;
+
+        r = efi_loader_get_entries(&m->efi_boot_loader_entries);
+        if (r < 0) {
+                if (r == -ENOENT || ERRNO_IS_NOT_SUPPORTED(r)) {
+                        log_debug_errno(r, "Boot loader reported no entries.");
+                        m->efi_boot_loader_entries_set = true;
+                        return 0;
+                }
+                return log_error_errno(r, "Failed to determine entries reported by boot loader: %m");
+        }
+
+        m->efi_boot_loader_entries_set = true;
+        return 1;
+#else
+        return 0;
+#endif
+}