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|
-module(ssh_tcpip_forward_srv).
-behaviour(ssh_server_channel).
-record(state, {
id, cm,
fwd_socket
}).
-export([init/1, handle_msg/2, handle_ssh_msg/2, terminate/2]).
init([FwdSocket]) ->
{ok, #state{fwd_socket=FwdSocket}}.
handle_msg({ssh_channel_up, ChannelId, ConnectionManager}, State) ->
{ok, State#state{id = ChannelId,
cm = ConnectionManager}};
handle_msg({tcp,Sock,Data}, #state{fwd_socket = Sock,
cm = CM,
id = ChId} = State) ->
ssh_connection:send(CM, ChId, Data),
inet:setopts(Sock, [{active,once}]),
{ok, State};
handle_msg({tcp_closed,Sock}, #state{fwd_socket = Sock,
cm = CM,
id = ChId} = State) ->
ssh_connection:send_eof(CM, ChId),
{stop, ChId, State#state{fwd_socket=undefined}}.
handle_ssh_msg({ssh_cm, _CM, {data, _ChannelId, _Type, Data}}, #state{fwd_socket=Sock} = State) ->
gen_tcp:send(Sock, Data),
{ok, State};
handle_ssh_msg({ssh_cm, _CM, {eof, ChId}}, State) ->
{stop, ChId, State};
handle_ssh_msg({ssh_cm, _CM, {signal, _, _}}, State) ->
%% Ignore signals according to RFC 4254 section 6.9.
{ok, State};
handle_ssh_msg({ssh_cm, _CM, {exit_signal, ChId, _, _Error, _}}, State) ->
{stop, ChId, State};
handle_ssh_msg({ssh_cm, _, {exit_status, ChId, _Status}}, State) ->
{stop, ChId, State}.
terminate(_Reason, #state{fwd_socket=Sock}) ->
gen_tcp:close(Sock),
ok.
|
