1 files changed, 79 insertions, 0 deletions
diff --git a/auth2-none.c b/auth2-none.c
new file mode 100644
index 0000000..d9f9722
--- /dev/null
+++ b/auth2-none.c
@@ -0,0 +1,79 @@
+/* $OpenBSD: auth2-none.c,v 1.24 2021/12/19 22:12:07 djm Exp $ */
+/*
+ * Copyright (c) 2000 Markus Friedl.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "includes.h"
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/uio.h>
+
+#include <fcntl.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdarg.h>
+#include <stdio.h>
+
+#include "atomicio.h"
+#include "xmalloc.h"
+#include "sshkey.h"
+#include "hostfile.h"
+#include "auth.h"
+#include "packet.h"
+#include "log.h"
+#include "misc.h"
+#include "servconf.h"
+#include "compat.h"
+#include "ssh2.h"
+#include "ssherr.h"
+#ifdef GSSAPI
+#include "ssh-gss.h"
+#endif
+#include "monitor_wrap.h"
+
+/* import */
+extern ServerOptions options;
+
+/* "none" is allowed only one time */
+static int none_enabled = 1;
+
+static int
+userauth_none(struct ssh *ssh, const char *method)
+{
+	int r;
+
+	none_enabled = 0;
+	if ((r = sshpkt_get_end(ssh)) != 0)
+		fatal_fr(r, "parse packet");
+	if (options.permit_empty_passwd && options.password_authentication)
+		return (PRIVSEP(auth_password(ssh, "")));
+	return (0);
+}
+
+Authmethod method_none = {
+	"none",
+	NULL,
+	userauth_none,
+	&none_enabled
+};