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%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2010-2020. 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%
%%
-module(relay).
%%
%% An example Diameter relay agent.
%%
%% Simplets usage to connect to a server listening on TCP at
%% 127.0.0.1:3868 and listen for connections on TCP at the same
%% endpoint:
%%
%% relay:start().
%% relay:connect(tcp).
%% relay:listen(sctp).
%%
%% Interface.
-export([start/1,
start/2,
listen/2,
connect/2,
stop/1]).
%% Convenience functions using the default service name.
-export([start/0,
listen/1,
connect/1,
stop/0]).
%% Default service name.
-define(DEF_SVC_NAME, ?MODULE).
%% Service configuration.
-define(SERVICE(Name), [{'Origin-Host', atom_to_list(Name) ++ ".example.com"},
{'Origin-Realm', "example.com"},
{'Vendor-Id', 193},
{'Product-Name', "RelayAgent"},
{'Auth-Application-Id', [16#FFFFFFFF]},
{decode_format, map},
{restrict_connections, false},
{string_decode, false},
{strict_mbit, false},
{application, [{alias, relay},
{dictionary, diameter_gen_relay},
{module, relay_cb},
{call_mutates_state, false}]}]).
%% start/2
start(Name, Opts) ->
Defaults = [T || {K,_} = T <- ?SERVICE(Name),
not lists:keymember(K, 1, Opts)],
diameter:start_service(Name, Opts ++ Defaults).
%% start/1
start(Opts) ->
start(?DEF_SVC_NAME, Opts).
%% start/0
start() ->
start(?DEF_SVC_NAME, []).
%% listen/2
listen(Name, Opts) ->
server:listen(Name, Opts).
%% listen/1
listen(Opts) ->
listen(?DEF_SVC_NAME, Opts).
%% connect/2
connect(Name, Opts) ->
client:connect(Name, Opts).
%% connect/1
connect(Opts) ->
connect(?DEF_SVC_NAME, Opts).
%% stop/1
stop(Name) ->
diameter:stop_service(Name).
%% stop/0
stop() ->
stop(?DEF_SVC_NAME).
|
