Merge branch 'ingela/dtls/statem/OTP-12982' into maint

* ingela/dtls/statem/OTP-12982:
  ssl: Implement DTLS state machine

1 files changed, 62 insertions, 0 deletions

diff --git a/lib/ssl/src/dtls_udp_sup.erl b/lib/ssl/src/dtls_udp_sup.erl
new file mode 100644
index 0000000000..197882e92f
--- /dev/null
+++ b/lib/ssl/src/dtls_udp_sup.erl
@@ -0,0 +1,62 @@
+%%
+%% %CopyrightBegin%
+%% 
+%% Copyright Ericsson AB 2016-2016. All Rights Reserved.
+%% 
+%% Licensed under the Apache License, Version 2.0 (the "License");
+%% you may not use this file except in compliance with the License.
+%% You may obtain a copy of the License at
+%%
+%%     http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%% 
+%% %CopyrightEnd%
+%%
+
+%%
+%%----------------------------------------------------------------------
+%% Purpose: Supervisor for a procsses dispatching upd datagrams to
+%% correct DTLS handler 
+%%----------------------------------------------------------------------
+-module(dtls_udp_sup).
+
+-behaviour(supervisor).
+
+%% API
+-export([start_link/0]).
+-export([start_child/1]).
+
+%% Supervisor callback
+-export([init/1]).
+
+%%%=========================================================================
+%%%  API
+%%%=========================================================================
+start_link() ->
+    supervisor:start_link({local, ?MODULE}, ?MODULE, []).
+
+start_child(Args) ->
+    supervisor:start_child(?MODULE, Args).
+    
+%%%=========================================================================
+%%%  Supervisor callback
+%%%=========================================================================
+init(_O) ->
+    RestartStrategy = simple_one_for_one,
+    MaxR = 0,
+    MaxT = 3600,
+   
+    Name = undefined, % As simple_one_for_one is used.
+    StartFunc = {dtls_udp_listener, start_link, []},
+    Restart = temporary, % E.g. should not be restarted
+    Shutdown = 4000,
+    Modules = [dtls_udp_listener],
+    Type = worker,
+    
+    ChildSpec = {Name, StartFunc, Restart, Shutdown, Type, Modules},
+    {ok, {{RestartStrategy, MaxR, MaxT}, [ChildSpec]}}.