1 files changed, 119 insertions, 0 deletions
diff --git a/src/tls/tls_record.h b/src/tls/tls_record.h
new file mode 100644
index 000000000..6d5dd057d
--- /dev/null
+++ b/src/tls/tls_record.h
@@ -0,0 +1,119 @@
+/*
+* TLS Record Handling
+* (C) 2004-2010 Jack Lloyd
+*
+* Released under the terms of the Botan license
+*/
+
+#ifndef BOTAN_TLS_RECORDS_H__
+#define BOTAN_TLS_RECORDS_H__
+
+#include <botan/tls_session_key.h>
+#include <botan/tls_suites.h>
+#include <botan/pipe.h>
+#include <botan/mac.h>
+#include <botan/secqueue.h>
+#include <vector>
+
+#if defined(BOTAN_USE_STD_TR1)
+
+#if defined(BOTAN_BUILD_COMPILER_IS_MSVC)
+    #include <functional>
+#else
+    #include <tr1/functional>
+#endif
+
+#elif defined(BOTAN_USE_BOOST_TR1)
+  #include <boost/tr1/functional.hpp>
+#else
+  #error "No TR1 library defined for use"
+#endif
+
+namespace Botan {
+
+using namespace std::tr1::placeholders;
+
+/**
+* TLS Record Writer
+*/
+class BOTAN_DLL Record_Writer
+   {
+   public:
+      void send(byte type, const byte input[], size_t length);
+      void send(byte type, byte val) { send(type, &val, 1); }
+
+      void flush();
+
+      void alert(Alert_Level, Alert_Type);
+
+      void set_keys(const CipherSuite&, const SessionKeys&, Connection_Side);
+
+      void set_version(Version_Code);
+
+      void reset();
+
+      Record_Writer(std::tr1::function<void (const byte[], size_t)> output_fn);
+
+      ~Record_Writer() { delete mac; }
+   private:
+      void send_record(byte type, const byte input[], size_t length);
+      void send_record(byte type, byte major, byte minor,
+                       const byte input[], size_t length);
+
+      std::tr1::function<void (const byte[], size_t)> output_fn;
+      Pipe cipher;
+      MessageAuthenticationCode* mac;
+
+      SecureVector<byte> buffer;
+      size_t buf_pos;
+
+      size_t block_size, mac_size, iv_size;
+
+      u64bit seq_no;
+      byte major, minor, buf_type;
+   };
+
+/**
+* TLS Record Reader
+*/
+class BOTAN_DLL Record_Reader
+   {
+   public:
+      void add_input(const byte input[], size_t input_size);
+
+      /**
+      * @param msg_type (output variable)
+      * @param buffer (output variable)
+      * @return Number of bytes still needed (minimum), or 0 if success
+      */
+      size_t get_record(byte& msg_type,
+                        MemoryRegion<byte>& buffer);
+
+      SecureVector<byte> get_record(byte& msg_type);
+
+      void set_keys(const CipherSuite& suite,
+                    const SessionKeys& keys,
+                    Connection_Side side);
+
+      void set_version(Version_Code version);
+
+      void reset();
+
+      bool currently_empty() const { return input_queue.size() == 0; }
+
+      Record_Reader() { mac = 0; reset(); }
+
+      ~Record_Reader() { delete mac; }
+   private:
+      SecureQueue input_queue;
+
+      Pipe cipher;
+      MessageAuthenticationCode* mac;
+      size_t block_size, mac_size, iv_size;
+      u64bit seq_no;
+      byte major, minor;
+   };
+
+}
+
+#endif