ssl: Refactor to provide common handshake functions for TLS/DTLS

Common functions will be located in ssl_handshake.erl while
specific functions will be located in tls_handshake.erl and dtls_handshake.erl

1 files changed, 40 insertions, 0 deletions

diff --git a/lib/ssl/src/dtls_v1.erl b/lib/ssl/src/dtls_v1.erl
new file mode 100644
index 0000000000..930998b460
--- /dev/null
+++ b/lib/ssl/src/dtls_v1.erl
@@ -0,0 +1,40 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2013-2013. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+-module(dtls_v1).
+
+-include("ssl_cipher.hrl").
+
+-export([suites/1, mac_hash/7, ecc_curves/1]).
+
+-spec suites(Minor:: 253|255) -> [cipher_suite()].
+
+suites(Minor) ->
+   tls_v1:suites(corresponding_minor_tls_version(Minor));
+
+mac_hash(Version, MacAlg, MacSecret, SeqNo, Type, Length, Fragment) ->
+    tls_v1:mac_hash(MacAlg, MacSecret, SeqNo, Type, Version,
+		    Length, Fragment).
+
+ecc_curves({_Major, Minor}) ->
+    tls_v1:ecc_curves(corresponding_minor_tls_version(Minor)).
+
+corresponding_minor_tls_version(255) ->
+    2;
+corresponding_minor_tls_version(253) ->
+    3.