diff options
Diffstat (limited to 'lib/ssh')
10 files changed, 446 insertions, 0 deletions
diff --git a/lib/ssh/test/Makefile b/lib/ssh/test/Makefile index 0a99d31a63..9832a9b210 100644 --- a/lib/ssh/test/Makefile +++ b/lib/ssh/test/Makefile @@ -36,6 +36,7 @@ MODULES= \ ssh_options_SUITE \ ssh_basic_SUITE \ ssh_bench_SUITE \ + ssh_chan_behaviours_SUITE \ ssh_compat_SUITE \ ssh_connection_SUITE \ ssh_dbg_SUITE \ @@ -53,6 +54,8 @@ MODULES= \ ssh_key_cb_options \ ssh_key_cb_engine_keys \ ssh_trpt_test_lib \ + ssh_chan_behaviours_client \ + ssh_chan_behaviours_server \ ssh_echo_server \ ssh_bench_dev_null \ ssh_peername_sockname_server \ diff --git a/lib/ssh/test/ssh_chan_behaviours_SUITE.erl b/lib/ssh/test/ssh_chan_behaviours_SUITE.erl new file mode 100644 index 0000000000..16ed152bcd --- /dev/null +++ b/lib/ssh/test/ssh_chan_behaviours_SUITE.erl @@ -0,0 +1,152 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2018-2018. 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% +%% + +%% + +-module(ssh_chan_behaviours_SUITE). + +-include_lib("common_test/include/ct.hrl"). +-include_lib("ssh/src/ssh.hrl"). +-include("ssh_test_lib.hrl"). + +%% Note: This directive should only be used in test suites. +-compile(export_all). + +%%-------------------------------------------------------------------- +%% Common Test interface functions ----------------------------------- +%%-------------------------------------------------------------------- + +suite() -> + [{ct_hooks,[ts_install_cth]}, + {timetrap,{seconds,60}}]. + +all() -> + [ + noexist_subsystem, + undefined_subsystem, + defined_subsystem, + subsystem_client + ]. + +%%-------------------------------------------------------------------- +init_per_suite(Config) -> + ?CHECK_CRYPTO( + begin + ssh:start(), + Config + end). + +end_per_suite(_Config) -> + {Time,R} = timer:tc(ssh, stop, []), + ct:log("Stop ssh: ~p ms",[(100*(Time div 1000)) / 100]), + R. + +init_per_testcase(_TC, Config) -> + SubSystems = [ + {"bad_cb", {ssh_chan_behaviours_undefined, []}}, % A non-existing file + {"ch1", {ssh_chan_behaviours_server, [self(),true]}} + ], + {Pid, Host, Port} = ssh_test_lib:std_daemon(Config, [{subsystems,SubSystems}]), + C = ssh_test_lib:std_connect(Config, Host, Port, []), + [{connref,C}, {daemon_pid,Pid}| Config]. + +end_per_testcase(_TC, Config) -> + {Time,_} = timer:tc(ssh, stop_daemon, [proplists:get_value(daemon_pid,Config)]), + ct:log("Stop daemon: ~p ms",[(100*(Time div 1000)) / 100]), + case flush() of + [] -> ok; + Msgs -> ct:pal("Unhandled messages:~n~p", [Msgs]) + end. + + +-define(EXPECT(What, Bind), + Bind = + (fun() -> + receive What -> + ct:log("~p:~p ~p got ~p",[?MODULE,?LINE,self(),What]), + Bind + after 5000 -> + ct:log("~p:~p ~p Flushed:~n~p",[?MODULE,?LINE,self(),flush()]), + ct:fail("Timeout!",[]) + end + end)() + ). + +%%-------------------------------------------------------------------- +%% Test Cases -------------------------------------------------------- +%%-------------------------------------------------------------------- +%% Try start a subsystem whos name is not known by the server +noexist_subsystem(Config) -> + C = proplists:get_value(connref, Config), + {ok, Ch} = ssh_connection:session_channel(C, infinity), + failure = ssh_connection:subsystem(C, Ch, "noexist", infinity), + ok = ssh_connection:close(C, Ch), + ?EXPECT({ssh_cm,C,{closed,Ch}},[]), + ok. + +%% Try to start a subsystem with a known name, but without any callback file +undefined_subsystem(Config) -> + C = proplists:get_value(connref, Config), + {ok, Ch} = ssh_connection:session_channel(C, infinity), + failure = ssh_connection:subsystem(C, Ch, "bad_cb", infinity), + ok = ssh_connection:close(C, Ch), + ?EXPECT({ssh_cm,C,{closed,Ch}},[]), % self() is instead of a proper channel handler + ok. + +%% Try to start and stop a subsystem with known name and defined callback file +defined_subsystem(Config) -> + C = proplists:get_value(connref, Config), + {ok, Ch1} = ssh_connection:session_channel(C, infinity), + + success = ssh_connection:subsystem(C, Ch1, "ch1", infinity), + IDsrv = ?EXPECT({{_Csrv,_Ch1srv}, {ssh_channel_up,_Ch1srv,_Csrv}}, {_Csrv,_Ch1srv}), + + ok = ssh_connection:close(C, Ch1), + ?EXPECT({IDsrv, {terminate,normal}}, []), + ?EXPECT({ssh_cm, C, {closed,Ch1}}, []), % self() is instead of a proper channel handler + ok. + +%% Try to start and stop a subsystem from a ssh_client_channel behviour +subsystem_client(Config) -> + C = proplists:get_value(connref, Config), + + {ok,ChRef} = ssh_chan_behaviours_client:start_link(C), + IDclt = ?EXPECT({{C,Ch1clt}, {ssh_channel_up,Ch1clt,C}}, {C,Ch1clt}), + IDsrv = ?EXPECT({{_Csrv,Ch1srv}, {ssh_channel_up,Ch1srv,_Csrv}}, {_Csrv,Ch1srv}), + + ok = ssh_chan_behaviours_client:stop(ChRef), + ?EXPECT({IDclt, {terminate,normal}}, []), % From the proper channel handler + ?EXPECT({IDsrv, {terminate,normal}}, []), + ok. + +%%%================================================================ +%%% +%%% + +flush() -> lists:reverse(flush([])). + +flush(Acc) -> + receive + M -> + flush([M|Acc]) + after 0 -> + Acc + end. + diff --git a/lib/ssh/test/ssh_chan_behaviours_SUITE_data/ssh_host_dsa_key b/lib/ssh/test/ssh_chan_behaviours_SUITE_data/ssh_host_dsa_key new file mode 100644 index 0000000000..51ab6fbd88 --- /dev/null +++ b/lib/ssh/test/ssh_chan_behaviours_SUITE_data/ssh_host_dsa_key @@ -0,0 +1,13 @@ +-----BEGIN DSA PRIVATE KEY----- +MIIBuwIBAAKBgQCClaHzE2ul0gKSUxah5W0W8UiJLy4hXngKEqpaUq9SSdVdY2LK +wVfKH1gt5iuaf1FfzOhsIC9G/GLnjYttXZc92cv/Gfe3gR+s0ni2++MX+T++mE/Q +diltXv/Hp27PybS67SmiFW7I+RWnT2OKlMPtw2oUuKeztCe5UWjaj/y5FQIVAPLA +l9RpiU30Z87NRAHY3NTRaqtrAoGANMRxw8UfdtNVR0CrQj3AgPaXOGE4d+G4Gp4X +skvnCHycSVAjtYxebUkzUzt5Q6f/IabuLUdge3gXrc8BetvrcKbp+XZgM0/Vj2CF +Ymmy3in6kzGZq7Fw1sZaku6AOU8vLa5woBT2vAcHLLT1bLAzj7viL048T6MfjrOP +ef8nHvACgYBhDWFQJ1mf99sg92LalVq1dHLmVXb3PTJDfCO/Gz5NFmj9EZbAtdah +/XcF3DeRF+eEoz48wQF/ExVxSMIhLdL+o+ElpVhlM7Yii+T7dPhkQfEul6zZXu+U +ykSTXYUbtsfTNRFQGBW2/GfnEc0mnIxfn9v10NEWMzlq5z9wT9P0CgIVAN4wtL5W +Lv62jKcdskxNyz2NQoBx +-----END DSA PRIVATE KEY----- + diff --git a/lib/ssh/test/ssh_chan_behaviours_SUITE_data/ssh_host_dsa_key.pub b/lib/ssh/test/ssh_chan_behaviours_SUITE_data/ssh_host_dsa_key.pub new file mode 100644 index 0000000000..4dbb1305b0 --- /dev/null +++ b/lib/ssh/test/ssh_chan_behaviours_SUITE_data/ssh_host_dsa_key.pub @@ -0,0 +1,11 @@ +---- BEGIN SSH2 PUBLIC KEY ---- +AAAAB3NzaC1kc3MAAACBAIKVofMTa6XSApJTFqHlbRbxSIkvLiFeeAoSqlpSr1JJ1V1j +YsrBV8ofWC3mK5p/UV/M6GwgL0b8YueNi21dlz3Zy/8Z97eBH6zSeLb74xf5P76YT9B2 +KW1e/8enbs/JtLrtKaIVbsj5FadPY4qUw+3DahS4p7O0J7lRaNqP/LkVAAAAFQDywJfU +aYlN9GfOzUQB2NzU0WqrawAAAIA0xHHDxR9201VHQKtCPcCA9pc4YTh34bganheyS+cI +fJxJUCO1jF5tSTNTO3lDp/8hpu4tR2B7eBetzwF62+twpun5dmAzT9WPYIViabLeKfqT +MZmrsXDWxlqS7oA5Ty8trnCgFPa8BwcstPVssDOPu+IvTjxPox+Os495/yce8AAAAIBh +DWFQJ1mf99sg92LalVq1dHLmVXb3PTJDfCO/Gz5NFmj9EZbAtdah/XcF3DeRF+eEoz48 +wQF/ExVxSMIhLdL+o+ElpVhlM7Yii+T7dPhkQfEul6zZXu+UykSTXYUbtsfTNRFQGBW2 +/GfnEc0mnIxfn9v10NEWMzlq5z9wT9P0Cg== +---- END SSH2 PUBLIC KEY ---- diff --git a/lib/ssh/test/ssh_chan_behaviours_SUITE_data/ssh_host_ecdsa_key b/lib/ssh/test/ssh_chan_behaviours_SUITE_data/ssh_host_ecdsa_key new file mode 100644 index 0000000000..fb1a862ded --- /dev/null +++ b/lib/ssh/test/ssh_chan_behaviours_SUITE_data/ssh_host_ecdsa_key @@ -0,0 +1,6 @@ +-----BEGIN EC PRIVATE KEY----- +MIGkAgEBBDArxbDfh3p1okrD9wQw6jJ4d4DdlBPD5GqXE8bIeRJiK41Sh40LgvPw +mkqEDSXK++CgBwYFK4EEACKhZANiAAScl43Ih2lWTDKrSox5ve5uiTXil4smsup3 +CfS1XPjKxgBAmlfBim8izbdrT0BFdQzz2joduNMtpt61wO4rGs6jm0UP7Kim9PC7 +Hneb/99fIYopdMH5NMnk60zGO1uZ2vc= +-----END EC PRIVATE KEY----- diff --git a/lib/ssh/test/ssh_chan_behaviours_SUITE_data/ssh_host_ecdsa_key.pub b/lib/ssh/test/ssh_chan_behaviours_SUITE_data/ssh_host_ecdsa_key.pub new file mode 100644 index 0000000000..428d5fb7d7 --- /dev/null +++ b/lib/ssh/test/ssh_chan_behaviours_SUITE_data/ssh_host_ecdsa_key.pub @@ -0,0 +1 @@ +ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBJyXjciHaVZMMqtKjHm97m6JNeKXiyay6ncJ9LVc+MrGAECaV8GKbyLNt2tPQEV1DPPaOh240y2m3rXA7isazqObRQ/sqKb08Lsed5v/318hiil0wfk0yeTrTMY7W5na9w== uabhnil@elxadlj3q32 diff --git a/lib/ssh/test/ssh_chan_behaviours_SUITE_data/ssh_host_rsa_key b/lib/ssh/test/ssh_chan_behaviours_SUITE_data/ssh_host_rsa_key new file mode 100644 index 0000000000..79968bdd7d --- /dev/null +++ b/lib/ssh/test/ssh_chan_behaviours_SUITE_data/ssh_host_rsa_key @@ -0,0 +1,16 @@ +-----BEGIN RSA PRIVATE KEY----- +MIICXQIBAAKBgQDCZX+4FBDwZIh9y/Uxee1VJnEXlowpz2yDKwj8semM4q843337 +zbNfxHmladB1lpz2NqyxI175xMIJuDxogyZdsOxGnFAzAnthR4dqL/RWRWzjaxSB +6IAO9SPYVVlrpZ+1hsjLW79fwXK/yc8VdhRuWTeQiRgYY2ek8+OKbOqz4QIDAQAB +AoGANmvJzJO5hkLuvyDZHKfAnGTtpifcR1wtSa9DjdKUyn8vhKF0mIimnbnYQEmW +NUUb3gXCZLi9PvkpRSVRrASDOZwcjoU/Kvww163vBUVb2cOZfFhyn6o2Sk88Tt++ +udH3hdjpf9i7jTtUkUe+QYPsia+wgvvrmn4QrahLAH86+kECQQDx5gFeXTME3cnW +WMpFz3PPumduzjqgqMMWEccX4FtQkMX/gyGa5UC7OHFyh0N/gSWvPbRHa8A6YgIt +n8DO+fh5AkEAzbqX4DOn8NY6xJIi42q7l/2jIA0RkB6P7YugW5NblhqBZ0XDnpA5 +sMt+rz+K07u9XZtxgh1xi7mNfwY6lEAMqQJBAJBEauCKmRj35Z6OyeQku59SPsnY ++SJEREVvSNw2lH9SOKQQ4wPsYlTGbvKtNVZgAcen91L5MmYfeckYE/fdIZECQQCt +64zxsTnM1I8iFxj/gP/OYlJBikrKt8udWmjaghzvLMEw+T2DExJyb9ZNeT53+UMB +m6O+B/4xzU/djvp+0hbhAkAemIt+rA5kTmYlFndhpvzkSSM8a2EXsO4XIPgGWCTT +tQKS/tTly0ADMjN/TVy11+9d6zcqadNVuHXHGtR4W0GR +-----END RSA PRIVATE KEY----- + diff --git a/lib/ssh/test/ssh_chan_behaviours_SUITE_data/ssh_host_rsa_key.pub b/lib/ssh/test/ssh_chan_behaviours_SUITE_data/ssh_host_rsa_key.pub new file mode 100644 index 0000000000..75d2025c71 --- /dev/null +++ b/lib/ssh/test/ssh_chan_behaviours_SUITE_data/ssh_host_rsa_key.pub @@ -0,0 +1,5 @@ +---- BEGIN SSH2 PUBLIC KEY ---- +AAAAB3NzaC1yc2EAAAADAQABAAAAgQDCZX+4FBDwZIh9y/Uxee1VJnEXlowpz2yDKwj8 +semM4q843337zbNfxHmladB1lpz2NqyxI175xMIJuDxogyZdsOxGnFAzAnthR4dqL/RW +RWzjaxSB6IAO9SPYVVlrpZ+1hsjLW79fwXK/yc8VdhRuWTeQiRgYY2ek8+OKbOqz4Q== +---- END SSH2 PUBLIC KEY ---- diff --git a/lib/ssh/test/ssh_chan_behaviours_client.erl b/lib/ssh/test/ssh_chan_behaviours_client.erl new file mode 100644 index 0000000000..07ac21ba97 --- /dev/null +++ b/lib/ssh/test/ssh_chan_behaviours_client.erl @@ -0,0 +1,143 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2005-2016. 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% +%% + +%% + +%%% Description: Example ssh client +-module(ssh_chan_behaviours_client). +-behaviour(ssh_client_channel). +-record(state, { + parent, + cm, + ch, + dbg + }). +-export([start_link/1, start/1, + stop/1, send_eof/1, + init/1, handle_msg/2, handle_ssh_msg/2, terminate/2, + code_change/3, handle_call/3, handle_cast/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). + + +start_link(C) -> + {ok, Ch} = ssh_connection:session_channel(C, infinity), + ssh_client_channel:start_link(C, Ch, ssh_chan_behaviours_client, [C, Ch, self(), true]). + +start(C) -> + {ok, Ch} = ssh_connection:session_channel(C, infinity), + ssh_client_channel:start(C, Ch, ssh_chan_behaviours_client, [C, Ch, self(), true]). + +send_eof(ChRef) -> + ssh_client_channel:call(ChRef, send_eof). + +stop(ChRef) -> + ssh_client_channel:call(ChRef, stop). + + +init([C, Ch, Parent, Dbg|_Exec]) -> + case ssh_connection:subsystem(C, Ch, "ch1", infinity) of + success -> + State = #state{cm = C, + ch = Ch, + parent=Parent, + dbg=Dbg}, + ?DBG(State, "callback spawned, parent = ~p", [Parent]), + {ok, State}; + + Other -> + {stop, Other} + end. + +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}. + + +handle_call(send_eof, _From,#state{ch=Ch,cm=C} = State) -> + {reply, ssh_connection:send_eof(C,Ch), State}; + +handle_call(stop, _From, State) -> + {stop, normal, ok, State}; + +handle_call(Msg, _From, State) -> + ?DBG(State, "Unknown call ~p", [Msg]), + {reply, {unknown_call,Msg}, State}. + + +terminate(Reason, State) -> + tell_parent({terminate,Reason}, State), + ?DBG(State, "terminate Reason = ~p",[Reason]). + + +handle_cast(Msg, State) -> + ?DBG(State, "Unknown cast ~p", [Msg]), + {noreply, State}. + +code_change(_OldVsn, State, _Extra) -> {ok, State}. + +%%%================================================================ +%%% +%%% + +tell_parent(Msg, #state{parent = Parent, + cm = C, + ch = Ch}) -> Parent ! {{C,Ch}, Msg}. + diff --git a/lib/ssh/test/ssh_chan_behaviours_server.erl b/lib/ssh/test/ssh_chan_behaviours_server.erl new file mode 100644 index 0000000000..a5ec19e0cf --- /dev/null +++ b/lib/ssh/test/ssh_chan_behaviours_server.erl @@ -0,0 +1,96 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2005-2016. 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% +%% + +%% + +%%% 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}. + |