diff -r 14722c5f8856 -r 74babc0082b7 src/server/daemon/auth.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/server/daemon/auth.h	Sun May 26 12:12:07 2013 +0200
@@ -0,0 +1,89 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2013 Olaf Wintermann. 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 COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT HOLDER OR CONTRIBUTORS 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.
+ */
+
+#ifndef AUTH_H
+#define	AUTH_H
+
+#include <sys/types.h>
+#include "../public/auth.h"
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+typedef struct {
+    User     user;
+    char     *authdb;
+    sstr_t   *groups;
+    size_t   numgroups;
+    char     *password;
+    uint32_t ref;
+} CachedUser;
+
+typedef struct user_cache_elm UserCacheElm;
+struct user_cache_elm {
+    CachedUser   *user;
+    UserCacheElm *next_user; // next elm in the cached user list
+    UcxKey       key;        // key to access this element
+    size_t       slot;       // slot in the map
+    UserCacheElm *next_elm;  // next element in this map slot
+    time_t       created;
+};
+
+typedef struct {
+    UserCacheElm  **map;
+    size_t        size;
+    size_t        count;
+    size_t        max_users;
+    UserCacheElm  *head;
+    UserCacheElm  *trail;
+} UserCache;
+
+void auth_cache_init();
+
+User* auth_cache_get(char *authdb, char *user);
+void auth_cache_add(
+        char *authdb,
+        User *user,
+        char *password,
+        char **groups,
+        size_t numgroups);
+
+void auth_cache_remove_from_map(UserCacheElm *elm);
+
+int cached_user_verify_password(CachedUser *user, char *password);
+int cached_user_check_group(CachedUser *user, char *group);
+void cached_user_unref(CachedUser *user);
+void cached_user_delete(CachedUser *user);
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif	/* AUTH_H */
+