diff --git a/include/types/auth.h b/include/types/auth.h
new file mode 100644
index 0000000..d278de6
--- /dev/null
+++ b/include/types/auth.h
@@ -0,0 +1,73 @@
+/*
+ * User authentication & authorization.
+ *
+ * Copyright 2010 Krzysztof Piotr Oledzki <ole@ans.pl>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ */
+
+#ifndef _TYPES_AUTH_H
+#define _TYPES_AUTH_H
+
+#include <common/config.h>
+#include <common/mini-clist.h>
+
+#include <types/auth.h>
+
+#define MAX_AUTH_GROUPS (unsigned int)(sizeof(int)*8)
+
+#define AU_O_INSECURE	0x00000001		/* insecure, unencrypted password */
+
+enum {
+	PR_REQ_ACL_ACT_UNKNOWN = 0,
+	PR_REQ_ACL_ACT_ALLOW,
+	PR_REQ_ACL_ACT_DENY,
+	PR_REQ_ACL_ACT_HTTP_AUTH,
+
+	PR_REQ_ACL_ACT_MAX
+};
+
+
+struct req_acl_rule {
+	struct list list;
+	struct acl_cond *cond;			/* acl condition to meet */
+	unsigned int action;
+		union {
+			struct {
+			char *realm;
+		} http_auth;
+	};
+};
+
+struct auth_users {
+	struct auth_users *next;
+	unsigned int flags;
+	char *user, *pass;
+	union {
+		char *groups;
+		unsigned int group_mask;
+	};
+};
+
+struct userlist {
+	struct userlist *next;
+	char *name;
+	struct auth_users *users;
+	int grpcnt;
+	char *groups[MAX_AUTH_GROUPS];
+	char **groupusers;
+};
+
+#endif /* _TYPES_AUTH_H */
+
+/*
+ * Local variables:
+ *  c-indent-level: 8
+ *  c-basic-offset: 8
+ * End:
+ */
+