1%% 2%% %CopyrightBegin% 3%% 4%% Copyright Ericsson AB 2010-2020. All Rights Reserved. 5%% 6%% Licensed under the Apache License, Version 2.0 (the "License"); 7%% you may not use this file except in compliance with the License. 8%% You may obtain a copy of the License at 9%% 10%% http://www.apache.org/licenses/LICENSE-2.0 11%% 12%% Unless required by applicable law or agreed to in writing, software 13%% distributed under the License is distributed on an "AS IS" BASIS, 14%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15%% See the License for the specific language governing permissions and 16%% limitations under the License. 17%% 18%% %CopyrightEnd% 19%% 20 21-module(client_cb). 22 23-include_lib("diameter/include/diameter.hrl"). 24 25%% diameter callbacks 26-export([peer_up/3, 27 peer_down/3, 28 pick_peer/4, 29 prepare_request/3, 30 prepare_retransmit/3, 31 handle_answer/4, 32 handle_error/4, 33 handle_request/3]). 34 35%% peer_up/3 36 37peer_up(_SvcName, _Peer, State) -> 38 State. 39 40%% peer_down/3 41 42peer_down(_SvcName, _Peer, State) -> 43 State. 44 45%% pick_peer/4 46 47pick_peer([Peer | _], _, _SvcName, _State) -> 48 {ok, Peer}. 49 50%% prepare_request/3 51 52prepare_request(#diameter_packet{msg = [Name | Avps]}, _, {_, Caps}) -> 53 #diameter_caps{origin_host = {OH, _}, 54 origin_realm = {OR, _}} 55 = Caps, 56 {send, [Name | Avps#{'Origin-Host' => OH, 'Origin-Realm' => OR}]}. 57 58%% prepare_retransmit/3 59 60prepare_retransmit(Pkt, _SvcName, _Peer) -> 61 {send, Pkt}. 62 63%% handle_answer/4 64 65handle_answer(#diameter_packet{msg = Msg}, _Request, _SvcName, _Peer) -> 66 {ok, Msg}. 67 68%% handle_error/4 69 70handle_error(Reason, _Request, _SvcName, _Peer) -> 71 {error, Reason}. 72 73%% handle_request/3 74 75handle_request(_Packet, _SvcName, _Peer) -> 76 {answer_message, 3001}. %% DIAMETER_COMMAND_UNSUPPORTED 77