%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2005-2018. 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%
%%
%%
%%% Description: Example ssh server
-module(ssh_chan_behaviours_server).
-behaviour(ssh_server_channel).
-record(state, {
parent,
cm,
ch,
dbg
}).
-export([init/1, handle_msg/2, handle_ssh_msg/2, terminate/2]).
-define(DBG(State,Fmt,Args),
case State#state.dbg of
true -> ct:log("~p:~p ~p C=~p Ch=~p "++Fmt,
[?MODULE,?LINE,self(),State#state.cm,State#state.ch|Args]);
false -> ok
end).
init([Pid,Dbg|_Exec]) ->
{ok, #state{parent=Pid,
dbg=Dbg}}.
handle_msg({ssh_channel_up, ChannelId, ConnectionManager}=M, State0) ->
State = State0#state{cm = ConnectionManager,
ch = ChannelId},
tell_parent(M, State),
?DBG(State, "ssh_channel_up",[]),
{ok, State}.
handle_ssh_msg({ssh_cm, C, {data, Ch, 0, Data}}=M, #state{ch=Ch,cm=C} = State) ->
tell_parent(M, State),
?DBG(State, "ssh_cm data size(Data)=~p",[size(Data)]),
{ok, State};
handle_ssh_msg({ssh_cm, C, {data, Ch, Type, Data}}=M, #state{ch=Ch,cm=C} = State) ->
tell_parent(M, State),
?DBG(State, "ssh_cm data Type=~p : ~p",[Type,Data]),
{ok, State};
handle_ssh_msg({ssh_cm, C, {eof, Ch}}=M, #state{ch=Ch,cm=C} = State) ->
tell_parent(M, State),
?DBG(State, "eof",[]),
{ok, State};
handle_ssh_msg({ssh_cm, C, {signal, _Ch, _SigNameStr}=Sig} = M, #state{ch=Ch,cm=C} = State) ->
%% Ignore signals according to RFC 4254 section 6.9.
tell_parent(M, State),
?DBG(State, "~p",[Sig]),
{ok, State};
handle_ssh_msg({ssh_cm, C, {exit_signal, Ch, _, _Error, _}=Sig}=M, #state{ch=Ch,cm=C} = State) ->
tell_parent(M, State),
?DBG(State, "~p",[Sig]),
{stop, Ch, State};
handle_ssh_msg({ssh_cm, C, {exit_status, Ch, _Status}=Sig}=M, #state{ch=Ch,cm=C} = State) ->
tell_parent(M, State),
?DBG(State, "~p",[Sig]),
{stop, Ch, State}.
terminate(Reason, State) ->
tell_parent({terminate,Reason}, State),
?DBG(State, "terminate Reason = ~p",[Reason]),
ok.
%%%================================================================
%%%
%%%
tell_parent(Msg, #state{parent = Parent,
cm = C,
ch = Ch}) -> Parent ! {{C,Ch}, Msg}.
