Added the first stab of an authentication plug-in framework

This enables a run-time loadable support for other authentication
modules.  This can be used to make eurephia authenticate user's
passwords against other sources than the local eurephia database
itself.

Signed-off-by: David Sommerseth <dazo@users.sourceforge.net>

1 files changed, 54 insertions, 0 deletions

diff --git a/auth/eurephia_authplugin_context.h b/auth/eurephia_authplugin_context.h
new file mode 100644
index 0000000..cc73129
--- /dev/null
+++ b/auth/eurephia_authplugin_context.h
@@ -0,0 +1,54 @@
+/*  eurephia_authplugin_context.h
+ *
+ *  Copyright (C) 2013          David Sommerseth <dazo@users.sourceforge.net>
+ *
+ *  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 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * @file   eurephia_authplugin_context.h
+ * @author David Sommerseth <dazo@users.sourceforge.net>
+ * @date   2013-02-15
+ *
+ * @brief  eurephia authentication plug-in context definition
+ */
+
+#ifndef EUREPHIA_AUTHPLUGIN_CONTEXT_H_
+#define EUREPHIA_AUTHPLUGIN_CONTEXT_H_
+
+#ifdef EUREPHIA_AUTHPLUGIN_C_
+/**
+ *  Authentication plug-in context.
+ *  Contains an overview of all loaded authentication plug-ins
+ *
+ *  This struct is only visible for eurephia_authplugin.c, to
+ *  avoid nesting troubles when eurephiaCTX needs declared eAuthPlugin
+ *  which again needs eurephiaCTX to already be defined.
+ *
+ */
+typedef struct __eAuthPluginCTX {
+        char *filename;           /**<  Filename of the plug-in */
+        void *dlhandle;           /**<  Handle to plug-in returned by dlopen() */
+        unsigned int plgid;       /**<  Name of the plug-in, retrieved from the database */
+        eAuthPlugin *plugin;      /**<  Access to the plug-in funcions */
+
+        struct __eAuthPluginCTX *next;  /**<  Pointer to the next auth plug-in */
+} eAuthPluginCTX;
+#else
+typedef struct __eAuthPluginCTX eAuthPluginCTX;
+#endif /* EUREPHIA_AUTHPLUGIN_C_ */
+
+
+#endif /* EUREPHIA_AUTHPLUGIN_CONTEXT_H_ */