1 files changed, 42 insertions, 0 deletions
diff --git a/src/user-sessions/user-sessions.c b/src/user-sessions/user-sessions.c
new file mode 100644
index 0000000..58054f8
--- /dev/null
+++ b/src/user-sessions/user-sessions.c
@@ -0,0 +1,42 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "fileio.h"
+#include "fileio-label.h"
+#include "fs-util.h"
+#include "main-func.h"
+#include "log.h"
+#include "selinux-util.h"
+#include "string-util.h"
+
+static int run(int argc, char *argv[]) {
+        int r;
+
+        if (argc != 2)
+                return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
+                                       "This program requires one argument.");
+
+        log_setup();
+
+        umask(0022);
+
+        r = mac_init();
+        if (r < 0)
+                return r;
+
+        /* We only touch /run/nologin. See create_shutdown_run_nologin_or_warn() for details. */
+
+        if (streq(argv[1], "start"))
+                return unlink_or_warn("/run/nologin");
+        if (streq(argv[1], "stop"))
+                return create_shutdown_run_nologin_or_warn();
+
+        return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Unknown verb '%s'.", argv[1]);
+}
+
+DEFINE_MAIN_FUNCTION(run);