logind: if a lid-switch lock was taken while the lid was closed, recheck lid status...

[elogind.git] / src / login / logind.c

diff --git a/src/login/logind.c b/src/login/logind.c
index 229af714f808fe97e6d98e232356114808b237ba..14c83551b9a4cc3be9ec37d78200b22bf48c5397 100644 (file)
--- a/src/login/logind.c
+++ b/src/login/logind.c
@@ -50,12 +50,15 @@ Manager *manager_new(void) {
         m->udev_vcsa_fd = -1;
         m->udev_button_fd = -1;
         m->epoll_fd = -1;
+        m->reserve_vt_fd = -1;
 
         m->n_autovts = 6;
+        m->reserve_vt = 6;
         m->inhibit_delay_max = 5 * USEC_PER_SEC;
-        m->handle_power_key = HANDLE_NO_SESSION;
-        m->handle_sleep_key = HANDLE_TTY_SESSION;
-        m->handle_lid_switch = HANDLE_OFF;
+        m->handle_power_key = HANDLE_POWEROFF;
+        m->handle_sleep_key = HANDLE_SUSPEND;
+        m->handle_lid_switch = HANDLE_SUSPEND;
+        m->lid_switch_ignore_inhibited = true;
 
         m->devices = hashmap_new(string_hash_func, string_compare_func);
         m->seats = hashmap_new(string_hash_func, string_compare_func);
@@ -166,6 +169,9 @@ void manager_free(Manager *m) {
         if (m->epoll_fd >= 0)
                 close_nointr_nofail(m->epoll_fd);
 
+        if (m->reserve_vt_fd >= 0)
+                close_nointr_nofail(m->reserve_vt_fd);
+
         strv_free(m->controllers);
         strv_free(m->reset_controllers);
         strv_free(m->kill_only_users);
@@ -489,9 +495,9 @@ int manager_enumerate_buttons(Manager *m) {
 
         /* Loads buttons from udev */
 
-        if (m->handle_power_key == HANDLE_OFF &&
-            m->handle_sleep_key == HANDLE_OFF &&
-            m->handle_lid_switch == HANDLE_OFF)
+        if (m->handle_power_key == HANDLE_IGNORE &&
+            m->handle_sleep_key == HANDLE_IGNORE &&
+            m->handle_lid_switch == HANDLE_IGNORE)
                 return 0;
 
         e = udev_enumerate_new(m->udev);
@@ -948,20 +954,28 @@ int manager_spawn_autovt(Manager *m, int vtnr) {
         assert(m);
         assert(vtnr >= 1);
 
-        if ((unsigned) vtnr > m->n_autovts)
+        if ((unsigned) vtnr > m->n_autovts &&
+            (unsigned) vtnr != m->reserve_vt)
                 return 0;
 
-        r = vt_is_busy(vtnr);
-        if (r < 0)
-                return r;
-        else if (r > 0)
-                return -EBUSY;
+        if ((unsigned) 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;
+        }
 
         if (asprintf(&name, "autovt@tty%i.service", vtnr) < 0) {
                 log_error("Could not allocate service name.");
                 r = -ENOMEM;
                 goto finish;
         }
+
         r = bus_method_call_with_reply (
                         m->bus,
                         "org.freedesktop.systemd1",
@@ -980,6 +994,29 @@ finish:
         return r;
 }
 
+static int manager_reserve_vt(Manager *m) {
+        _cleanup_free_ char *p = NULL;
+
+        assert(m);
+
+        if (m->reserve_vt <= 0)
+                return 0;
+
+        if (asprintf(&p, "/dev/tty%u", m->reserve_vt) < 0)
+                return log_oom();
+
+        m->reserve_vt_fd = open(p, O_RDWR|O_NOCTTY|O_CLOEXEC|O_NONBLOCK);
+        if (m->reserve_vt_fd < 0) {
+
+                /* Don't complain on VT-less systems */
+                if (errno != ENOENT)
+                        log_warning("Failed to pin reserved VT: %m");
+                return -errno;
+        }
+
+        return 0;
+}
+
 int manager_get_session_by_cgroup(Manager *m, const char *cgroup, Session **session) {
         Session *s;
         char *p;
@@ -1268,9 +1305,9 @@ static int manager_connect_udev(Manager *m) {
                 return -errno;
 
         /* Don't watch keys if nobody cares */
-        if (m->handle_power_key != HANDLE_OFF ||
-            m->handle_sleep_key != HANDLE_OFF ||
-            m->handle_lid_switch != HANDLE_OFF) {
+        if (m->handle_power_key != HANDLE_IGNORE ||
+            m->handle_sleep_key != HANDLE_IGNORE ||
+            m->handle_lid_switch != HANDLE_IGNORE) {
 
                 m->udev_button_monitor = udev_monitor_new_from_netlink(m->udev, "udev");
                 if (!m->udev_button_monitor)
@@ -1370,7 +1407,7 @@ int manager_get_idle_hint(Manager *m, dual_timestamp *t) {
 
         assert(m);
 
-        idle_hint = !manager_is_inhibited(m, INHIBIT_IDLE, INHIBIT_BLOCK, t);
+        idle_hint = !manager_is_inhibited(m, INHIBIT_IDLE, INHIBIT_BLOCK, t, false);
 
         HASHMAP_FOREACH(s, m->sessions, i) {
                 dual_timestamp k;
@@ -1450,6 +1487,9 @@ int manager_startup(Manager *m) {
         /* Remove stale objects before we start them */
         manager_gc(m, false);
 
+        /* Reserve the special reserved VT */
+        manager_reserve_vt(m);
+
         /* And start everything */
         HASHMAP_FOREACH(seat, m->seats, i)
                 seat_start(seat);
@@ -1466,6 +1506,26 @@ int manager_startup(Manager *m) {
         return 0;
 }
 
+static int manager_recheck_buttons(Manager *m) {
+        Iterator i;
+        Button *b;
+        int r = 0;
+
+        assert(m);
+
+        HASHMAP_FOREACH(b, m->buttons, i) {
+                int q;
+
+                q = button_recheck(b);
+                if (q > 0)
+                        return 1;
+                if (q < 0)
+                        r = q;
+        }
+
+        return r;
+}
+
 int manager_run(Manager *m) {
         assert(m);
 
@@ -1479,6 +1539,9 @@ int manager_run(Manager *m) {
                 if (manager_dispatch_delayed(m) > 0)
                         continue;
 
+                if (manager_recheck_buttons(m) > 0)
+                        continue;
+
                 if (dbus_connection_dispatch(m->bus) != DBUS_DISPATCH_COMPLETE)
                         continue;