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+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2008-2012. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+
+%%
+-module(ssh_connection_SUITE).
+
+-include_lib("common_test/include/ct.hrl").
+
+-compile(export_all).
+
+-define(SSH_DEFAULT_PORT, 22).
+-define(EXEC_TIMEOUT, 10000).
+
+%%--------------------------------------------------------------------
+suite() ->
+ [{ct_hooks,[ts_install_cth]}].
+
+all() ->
+ [
+ {group, erlang_client},
+ interrupted_send
+ ].
+groups() ->
+ [{erlang_client, [], [simple_exec,
+ small_cat,
+ big_cat,
+ send_after_exit
+ ]}].
+
+%%--------------------------------------------------------------------
+
+init_per_suite(Config) ->
+ case catch crypto:start() of
+ ok ->
+ Config;
+ _Else ->
+ {skip, "Crypto could not be started!"}
+ end.
+
+end_per_suite(_Config) ->
+ crypto:stop(),
+ ok.
+%%--------------------------------------------------------------------
+init_per_group(erlang_client, Config) ->
+ case gen_tcp:connect("localhost", 22, []) of
+ {error,econnrefused} ->
+ {skip,"No openssh deamon"};
+ _ ->
+ Config
+ end;
+init_per_group(_, Config) ->
+ Config.
+
+end_per_group(_, Config) ->
+ Config.
+
+%%--------------------------------------------------------------------
+init_per_testcase(_TestCase, Config) ->
+ ssh:start(),
+ Config.
+
+end_per_testcase(_Config) ->
+ ssh:stop(),
+ ok.
+
+%%% TEST cases starts here.
+%%--------------------------------------------------------------------
+simple_exec(doc) ->
+ ["Simple openssh connectivity test for ssh_connection:exec"];
+
+simple_exec(Config) when is_list(Config) ->
+ ConnectionRef = ssh_test_lib:connect(?SSH_DEFAULT_PORT, [{silently_accept_hosts, true},
+ {user_interaction, false}]),
+ {ok, ChannelId0} = ssh_connection:session_channel(ConnectionRef, infinity),
+ success = ssh_connection:exec(ConnectionRef, ChannelId0,
+ "echo testing", infinity),
+
+ %% receive response to input
+ receive
+ {ssh_cm, ConnectionRef, {data, ChannelId0, 0, <<"testing\n">>}} ->
+ ok
+ end,
+
+ %% receive close messages
+ receive
+ {ssh_cm, ConnectionRef, {eof, ChannelId0}} ->
+ ok
+ end,
+ receive
+ {ssh_cm, ConnectionRef, {exit_status, ChannelId0, 0}} ->
+ ok
+ end,
+ receive
+ {ssh_cm, ConnectionRef,{closed, ChannelId0}} ->
+ ok
+ end.
+
+%%--------------------------------------------------------------------
+small_cat(doc) ->
+ ["Use 'cat' to echo small data block back to us."];
+
+small_cat(Config) when is_list(Config) ->
+ ConnectionRef = ssh_test_lib:connect(?SSH_DEFAULT_PORT, [{silently_accept_hosts, true},
+ {user_interaction, false}]),
+ {ok, ChannelId0} = ssh_connection:session_channel(ConnectionRef, infinity),
+ success = ssh_connection:exec(ConnectionRef, ChannelId0,
+ "cat", infinity),
+
+ Data = <<"I like spaghetti squash">>,
+ ok = ssh_connection:send(ConnectionRef, ChannelId0, Data),
+ ok = ssh_connection:send_eof(ConnectionRef, ChannelId0),
+
+ %% receive response to input
+ receive
+ {ssh_cm, ConnectionRef, {data, ChannelId0, 0, Data}} ->
+ ok
+ end,
+
+ %% receive close messages
+ receive
+ {ssh_cm, ConnectionRef, {eof, ChannelId0}} ->
+ ok
+ end,
+ receive
+ {ssh_cm, ConnectionRef, {exit_status, ChannelId0, 0}} ->
+ ok
+ end,
+ receive
+ {ssh_cm, ConnectionRef,{closed, ChannelId0}} ->
+ ok
+ end.
+
+%%--------------------------------------------------------------------
+big_cat(doc) ->
+ ["Use 'cat' to echo large data block back to us."];
+
+big_cat(Config) when is_list(Config) ->
+ ConnectionRef = ssh_test_lib:connect(?SSH_DEFAULT_PORT, [{silently_accept_hosts, true},
+ {user_interaction, false}]),
+ {ok, ChannelId0} = ssh_connection:session_channel(ConnectionRef, infinity),
+ success = ssh_connection:exec(ConnectionRef, ChannelId0,
+ "cat", infinity),
+
+ %% build 10MB binary
+ Data = << <<X:32>> || X <- lists:seq(1,2500000)>>,
+
+ %% pre-adjust receive window so the other end doesn't block
+ ssh_connection:adjust_window(ConnectionRef, ChannelId0, size(Data)),
+
+ test_server:format("sending ~p byte binary~n",[size(Data)]),
+ ok = ssh_connection:send(ConnectionRef, ChannelId0, Data, 10000),
+ ok = ssh_connection:send_eof(ConnectionRef, ChannelId0),
+
+ %% collect echoed data until eof
+ case big_cat_rx(ConnectionRef, ChannelId0) of
+ {ok, Data} ->
+ ok;
+ {ok, Other} ->
+ case size(Data) =:= size(Other) of
+ true ->
+ test_server:format("received and sent data are same"
+ "size but do not match~n",[]);
+ false ->
+ test_server:format("sent ~p but only received ~p~n",
+ [size(Data), size(Other)])
+ end,
+ ct:fail(receive_data_mismatch);
+ Else ->
+ ct:fail(Else)
+ end,
+
+ %% receive close messages (eof already consumed)
+ receive
+ {ssh_cm, ConnectionRef, {exit_status, ChannelId0, 0}} ->
+ ok
+ end,
+ receive
+ {ssh_cm, ConnectionRef,{closed, ChannelId0}} ->
+ ok
+ end.
+
+big_cat_rx(ConnectionRef, ChannelId) ->
+ big_cat_rx(ConnectionRef, ChannelId, []).
+
+big_cat_rx(ConnectionRef, ChannelId, Acc) ->
+ receive
+ {ssh_cm, ConnectionRef, {data, ChannelId, 0, Data}} ->
+ %% ssh_connection:adjust_window(ConnectionRef, ChannelId, size(Data)),
+ %% window was pre-adjusted, don't adjust again here
+ big_cat_rx(ConnectionRef, ChannelId, [Data | Acc]);
+ {ssh_cm, ConnectionRef, {eof, ChannelId}} ->
+ {ok, iolist_to_binary(lists:reverse(Acc))}
+ after ?EXEC_TIMEOUT ->
+ timeout
+ end.
+
+%%--------------------------------------------------------------------
+send_after_exit(doc) ->
+ ["Send channel data after the channel has been closed."];
+
+send_after_exit(Config) when is_list(Config) ->
+ ConnectionRef = ssh_test_lib:connect(?SSH_DEFAULT_PORT, [{silently_accept_hosts, true},
+ {user_interaction, false}]),
+ {ok, ChannelId0} = ssh_connection:session_channel(ConnectionRef, infinity),
+
+ %% Shell command "false" will exit immediately
+ success = ssh_connection:exec(ConnectionRef, ChannelId0,
+ "false", infinity),
+
+ timer:sleep(2000), %% Allow incoming eof/close/exit_status ssh messages to be processed
+
+ Data = <<"I like spaghetti squash">>,
+ case ssh_connection:send(ConnectionRef, ChannelId0, Data, 2000) of
+ {error, closed} -> ok;
+ ok ->
+ ct:fail({expected,{error,closed}});
+ {error, timeout} ->
+ ct:fail({expected,{error,closed}});
+ Else ->
+ ct:fail(Else)
+ end,
+
+ %% receive close messages
+ receive
+ {ssh_cm, ConnectionRef, {eof, ChannelId0}} ->
+ ok
+ end,
+ receive
+ {ssh_cm, ConnectionRef, {exit_status, ChannelId0, _}} ->
+ ok
+ end,
+ receive
+ {ssh_cm, ConnectionRef,{closed, ChannelId0}} ->
+ ok
+ end.
+%%--------------------------------------------------------------------
+interrupted_send(doc) ->
+ ["Use a subsystem that echos n char and then sends eof to cause a channel exit partway through a large send."];
+
+interrupted_send(Config) when is_list(Config) ->
+ PrivDir = ?config(priv_dir, Config),
+ UserDir = filename:join(PrivDir, nopubkey), % to make sure we don't use public-key-auth
+ file:make_dir(UserDir),
+ SysDir = ?config(data_dir, Config),
+ {Pid, Host, Port} = ssh_test_lib:daemon([{system_dir, SysDir},
+ {user_dir, UserDir},
+ {password, "morot"},
+ {subsystems, [{"echo_n", {ssh_echo_server, [4000000]}}]}]),
+
+ ConnectionRef = ssh_test_lib:connect(Host, Port, [{silently_accept_hosts, true},
+ {user, "foo"},
+ {password, "morot"},
+ {user_interaction, false},
+ {user_dir, UserDir}]),
+
+ {ok, ChannelId} = ssh_connection:session_channel(ConnectionRef, infinity),
+
+ success = ssh_connection:subsystem(ConnectionRef, ChannelId, "echo_n", infinity),
+
+ %% build 10MB binary
+ Data = << <<X:32>> || X <- lists:seq(1,2500000)>>,
+
+ %% expect remote end to send us 4MB back
+ <<ExpectedData:4000000/binary, _/binary>> = Data,
+
+ %% pre-adjust receive window so the other end doesn't block
+ ssh_connection:adjust_window(ConnectionRef, ChannelId, size(ExpectedData) + 1),
+
+ case ssh_connection:send(ConnectionRef, ChannelId, Data, 10000) of
+ {error, closed} ->
+ ok;
+ Msg ->
+ ct:fail({expected,{error,closed}, got, Msg})
+ end,
+ receive_data(ExpectedData, ConnectionRef, ChannelId),
+ ssh:close(ConnectionRef),
+ ssh:stop_daemon(Pid).
+
+
+%% Internal funtions ------------------------------------------------------------------
+
+receive_data(ExpectedData, ConnectionRef, ChannelId) ->
+ ExpectedData = collect_data(ConnectionRef, ChannelId).
+
+collect_data(ConnectionRef, ChannelId) ->
+ collect_data(ConnectionRef, ChannelId, []).
+
+collect_data(ConnectionRef, ChannelId, Acc) ->
+ receive
+ {ssh_cm, ConnectionRef, {data, ChannelId, 0, Data}} ->
+ collect_data(ConnectionRef, ChannelId, [Data | Acc]);
+ {ssh_cm, ConnectionRef, {eof, ChannelId}} ->
+ iolist_to_binary(lists:reverse(Acc))
+ after 5000 ->
+ timeout
+ end.
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