- Added simple SSL session cache implementation
- Revamped session resumption handling
diff --git a/include/polarssl/ssl_cache.h b/include/polarssl/ssl_cache.h
new file mode 100644
index 0000000..e13c087
--- /dev/null
+++ b/include/polarssl/ssl_cache.h
@@ -0,0 +1,105 @@
+/**
+ * \file ssl_cache.h
+ *
+ * \brief SSL session cache implementation
+ *
+ * Copyright (C) 2006-2012, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * 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, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_SSL_CACHE_H
+#define POLARSSL_SSL_CACHE_H
+
+#include "ssl.h"
+
+#define SSL_CACHE_DEFAULT_TIMEOUT 86400 /*!< 1 day */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct _ssl_cache_context ssl_cache_context;
+typedef struct _ssl_cache_entry ssl_cache_entry;
+
+/**
+ * \brief This structure is used for storing cache entries
+ */
+struct _ssl_cache_entry
+{
+ time_t timestamp; /*!< entry timestamp */
+ ssl_session session; /*!< entry session */
+ ssl_cache_entry *next; /*!< chain pointer */
+};
+
+/**
+ * \brief Cache context
+ */
+struct _ssl_cache_context
+{
+ ssl_cache_entry *chain; /*!< start of the chain */
+ int timeout; /*!< cache timeout */
+};
+
+/**
+ * \brief Initialize an SSL cache context
+ *
+ * \param cache SSL cache context
+ */
+void ssl_cache_init( ssl_cache_context *cache );
+
+/**
+ * \brief Cache get callback implementation
+ *
+ * \param data SSL cache context
+ * \param session session to retrieve entry for
+ */
+int ssl_cache_get( void *data, ssl_session *session );
+
+/**
+ * \brief Cache set callback implementation
+ *
+ * \param data SSL cache context
+ * \param session session to store entry for
+ */
+int ssl_cache_set( void *data, const ssl_session *session );
+
+/**
+ * \brief Set the cache timeout
+ * (Default: SSL_CACHE_DEFAULT_TIMEOUT (1 day))
+ *
+ * A timeout of 0 indicates no timeout.
+ *
+ * \param cache SSL cache context
+ * \param timeout cache entry timeout
+ */
+void ssl_cache_set_timeout( ssl_cache_context *cache, int timeout );
+
+/**
+ * \brief Free referenced items in a cache context and clear memory
+ *
+ * \param cache SSL cache context
+ */
+void ssl_cache_free( ssl_cache_context *cache );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ssl_cache.h */