[svn-upgrade] new version strongswan (4.5.0)

1 files changed, 80 insertions, 0 deletions

diff --git a/src/libtls/tls_compression.h b/src/libtls/tls_compression.h
new file mode 100644
index 000000000..b4832ab06
--- /dev/null
+++ b/src/libtls/tls_compression.h
@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2010 Martin Willi
+ * Copyright (C) 2010 revosec AG
+ *
+ * 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.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * 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.
+ */
+
+/**
+ * @defgroup tls_compression tls_compression
+ * @{ @ingroup libtls
+ */
+
+#ifndef TLS_COMPRESSION_H_
+#define TLS_COMPRESSION_H_
+
+#include <library.h>
+
+#include "tls.h"
+#include "tls_alert.h"
+#include "tls_fragmentation.h"
+
+typedef struct tls_compression_t tls_compression_t;
+
+/**
+ * TLS record protocol compression layer.
+ */
+struct tls_compression_t {
+
+	/**
+	 * Process a compressed TLS record, pass it to upper layers.
+	 *
+	 * @param type		type of the TLS record to process
+	 * @param data		associated TLS record data
+	 * @return
+	 *					- SUCCESS if TLS negotiation complete
+	 *					- FAILED if TLS handshake failed
+	 *					- NEED_MORE if more invocations to process/build needed
+	 */
+	status_t (*process)(tls_compression_t *this,
+						tls_content_type_t type, chunk_t data);
+
+	/**
+	 * Query upper layer for TLS record, build compressed record.
+	 *
+	 * @param type		type of the built TLS record
+	 * @param data		allocated data of the built TLS record
+	 * @return
+	 *					- SUCCESS if TLS negotiation complete
+	 *					- FAILED if TLS handshake failed
+	 *					- NEED_MORE if upper layers have more records to send
+	 *					- INVALID_STATE if more input records required
+	 */
+	status_t (*build)(tls_compression_t *this,
+					  tls_content_type_t *type, chunk_t *data);
+
+	/**
+	 * Destroy a tls_compression_t.
+	 */
+	void (*destroy)(tls_compression_t *this);
+};
+
+/**
+ * Create a tls_compression instance.
+ *
+ * @param fragmentation		fragmentation layer of TLS stack
+ * @param alert				TLS alert handler
+ * @return					TLS compression layer.
+ */
+tls_compression_t *tls_compression_create(tls_fragmentation_t *fragmentation,
+										  tls_alert_t *alert);
+
+#endif /** TLS_COMPRESSION_H_ @}*/