%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2008-2015. 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_options_SUITE).
%%% This test suite tests different options for the ssh functions
-include_lib("common_test/include/ct.hrl").
-include_lib("kernel/include/file.hrl").
%%% Test cases
-export([connectfun_disconnectfun_client/1,
disconnectfun_option_client/1,
disconnectfun_option_server/1,
id_string_no_opt_client/1,
id_string_no_opt_server/1,
id_string_own_string_client/1,
id_string_own_string_server/1,
id_string_random_client/1,
id_string_random_server/1,
max_sessions_sftp_start_channel_parallel/1,
max_sessions_sftp_start_channel_sequential/1,
max_sessions_ssh_connect_parallel/1,
max_sessions_ssh_connect_sequential/1,
server_password_option/1,
server_userpassword_option/1,
ssh_connect_arg4_timeout/1,
ssh_connect_negtimeout_parallel/1,
ssh_connect_negtimeout_sequential/1,
ssh_connect_nonegtimeout_connected_parallel/1,
ssh_connect_nonegtimeout_connected_sequential/1,
ssh_connect_timeout/1, connect/4,
ssh_daemon_minimal_remote_max_packet_size_option/1,
ssh_msg_debug_fun_option_client/1,
ssh_msg_debug_fun_option_server/1,
system_dir_option/1,
unexpectedfun_option_client/1,
unexpectedfun_option_server/1,
user_dir_option/1,
connectfun_disconnectfun_server/1
]).
%%% Common test callbacks
-export([suite/0, all/0, groups/0,
init_per_suite/1, end_per_suite/1,
init_per_group/2, end_per_group/2,
init_per_testcase/2, end_per_testcase/2
]).
-define(NEWLINE, <<"\r\n">>).
%%--------------------------------------------------------------------
%% Common Test interface functions -----------------------------------
%%--------------------------------------------------------------------
suite() ->
[{ct_hooks,[ts_install_cth]}].
all() ->
[connectfun_disconnectfun_server,
connectfun_disconnectfun_client,
server_password_option,
server_userpassword_option,
{group, dir_options},
ssh_connect_timeout,
ssh_connect_arg4_timeout,
ssh_daemon_minimal_remote_max_packet_size_option,
ssh_msg_debug_fun_option_client,
ssh_msg_debug_fun_option_server,
disconnectfun_option_server,
disconnectfun_option_client,
unexpectedfun_option_server,
unexpectedfun_option_client,
id_string_no_opt_client,
id_string_own_string_client,
id_string_random_client,
id_string_no_opt_server,
id_string_own_string_server,
id_string_random_server,
{group, hardening_tests}
].
groups() ->
[{hardening_tests, [], [ssh_connect_nonegtimeout_connected_parallel,
ssh_connect_nonegtimeout_connected_sequential,
ssh_connect_negtimeout_parallel,
ssh_connect_negtimeout_sequential,
max_sessions_ssh_connect_parallel,
max_sessions_ssh_connect_sequential,
max_sessions_sftp_start_channel_parallel,
max_sessions_sftp_start_channel_sequential
]},
{dir_options, [], [user_dir_option,
system_dir_option]}
].
%%--------------------------------------------------------------------
init_per_suite(Config) ->
catch crypto:stop(),
case catch crypto:start() of
ok ->
Config;
_Else ->
{skip, "Crypto could not be started!"}
end.
end_per_suite(_Config) ->
ssh:stop(),
crypto:stop().
%%--------------------------------------------------------------------
init_per_group(hardening_tests, Config) ->
DataDir = ?config(data_dir, Config),
PrivDir = ?config(priv_dir, Config),
ssh_test_lib:setup_dsa(DataDir, PrivDir),
Config;
init_per_group(dir_options, Config) ->
PrivDir = ?config(priv_dir, Config),
%% Make unreadable dir:
Dir_unreadable = filename:join(PrivDir, "unread"),
ok = file:make_dir(Dir_unreadable),
{ok,F1} = file:read_file_info(Dir_unreadable),
ok = file:write_file_info(Dir_unreadable,
F1#file_info{mode = F1#file_info.mode band (bnot 8#00444)}),
%% Make readable file:
File_readable = filename:join(PrivDir, "file"),
ok = file:write_file(File_readable, <<>>),
%% Check:
case {file:read_file_info(Dir_unreadable),
file:read_file_info(File_readable)} of
{{ok, Id=#file_info{type=directory, access=Md}},
{ok, If=#file_info{type=regular, access=Mf}}} ->
AccessOK =
case {Md, Mf} of
{read, _} -> false;
{read_write, _} -> false;
{_, read} -> true;
{_, read_write} -> true;
_ -> false
end,
case AccessOK of
true ->
%% Save:
[{unreadable_dir, Dir_unreadable},
{readable_file, File_readable}
| Config];
false ->
ct:log("File#file_info : ~p~n"
"Dir#file_info : ~p",[If,Id]),
{skip, "File or dir mode settings failed"}
end;
NotDirFile ->
ct:log("{Dir,File} -> ~p",[NotDirFile]),
{skip, "File/Dir creation failed"}
end;
init_per_group(_, Config) ->
Config.
end_per_group(_, Config) ->
Config.
%%--------------------------------------------------------------------
init_per_testcase(_TestCase, Config) ->
ssh:start(),
Config.
end_per_testcase(TestCase, Config) when TestCase == server_password_option;
TestCase == server_userpassword_option ->
UserDir = filename:join(?config(priv_dir, Config), nopubkey),
ssh_test_lib:del_dirs(UserDir),
end_per_testcase(Config);
end_per_testcase(_TestCase, Config) ->
end_per_testcase(Config).
end_per_testcase(_Config) ->
ssh:stop(),
ok.
%%--------------------------------------------------------------------
%% Test Cases --------------------------------------------------------
%%--------------------------------------------------------------------
%%--------------------------------------------------------------------
%%% validate to server that uses the 'password' option
server_password_option(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"}]),
ConnectionRef =
ssh_test_lib:connect(Host, Port, [{silently_accept_hosts, true},
{user, "foo"},
{password, "morot"},
{user_interaction, false},
{user_dir, UserDir}]),
Reason = "Unable to connect using the available authentication methods",
{error, Reason} =
ssh:connect(Host, Port, [{silently_accept_hosts, true},
{user, "vego"},
{password, "foo"},
{user_interaction, false},
{user_dir, UserDir}]),
ct:log("Test of wrong password: Error msg: ~p ~n", [Reason]),
ssh:close(ConnectionRef),
ssh:stop_daemon(Pid).
%%--------------------------------------------------------------------
%%% validate to server that uses the 'password' option
server_userpassword_option(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, PrivDir},
{user_passwords, [{"vego", "morot"}]}]),
ConnectionRef =
ssh_test_lib:connect(Host, Port, [{silently_accept_hosts, true},
{user, "vego"},
{password, "morot"},
{user_interaction, false},
{user_dir, UserDir}]),
ssh:close(ConnectionRef),
Reason = "Unable to connect using the available authentication methods",
{error, Reason} =
ssh:connect(Host, Port, [{silently_accept_hosts, true},
{user, "foo"},
{password, "morot"},
{user_interaction, false},
{user_dir, UserDir}]),
{error, Reason} =
ssh:connect(Host, Port, [{silently_accept_hosts, true},
{user, "vego"},
{password, "foo"},
{user_interaction, false},
{user_dir, UserDir}]),
ssh:stop_daemon(Pid).
%%--------------------------------------------------------------------
system_dir_option(Config) ->
DirUnread = proplists:get_value(unreadable_dir,Config),
FileRead = proplists:get_value(readable_file,Config),
case ssh_test_lib:daemon([{system_dir, DirUnread}]) of
{error,{eoptions,{{system_dir,DirUnread},eacces}}} ->
ok;
{Pid1,_Host1,Port1} when is_pid(Pid1),is_integer(Port1) ->
ssh:stop_daemon(Pid1),
ct:fail("Didn't detect that dir is unreadable", [])
end,
case ssh_test_lib:daemon([{system_dir, FileRead}]) of
{error,{eoptions,{{system_dir,FileRead},enotdir}}} ->
ok;
{Pid2,_Host2,Port2} when is_pid(Pid2),is_integer(Port2) ->
ssh:stop_daemon(Pid2),
ct:fail("Didn't detect that option is a plain file", [])
end.
user_dir_option(Config) ->
DirUnread = proplists:get_value(unreadable_dir,Config),
FileRead = proplists:get_value(readable_file,Config),
%% Any port will do (beware, implementation knowledge!):
Port = 65535,
case ssh:connect("localhost", Port, [{user_dir, DirUnread}]) of
{error,{eoptions,{{user_dir,DirUnread},eacces}}} ->
ok;
{error,econnrefused} ->
ct:fail("Didn't detect that dir is unreadable", [])
end,
case ssh:connect("localhost", Port, [{user_dir, FileRead}]) of
{error,{eoptions,{{user_dir,FileRead},enotdir}}} ->
ok;
{error,econnrefused} ->
ct:fail("Didn't detect that option is a plain file", [])
end.
%%--------------------------------------------------------------------
%%% validate client that uses the 'ssh_msg_debug_fun' option
ssh_msg_debug_fun_option_client(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"},
{failfun, fun ssh_test_lib:failfun/2}]),
Parent = self(),
DbgFun = fun(ConnRef,Displ,Msg,Lang) -> Parent ! {msg_dbg,{ConnRef,Displ,Msg,Lang}} end,
ConnectionRef =
ssh_test_lib:connect(Host, Port, [{silently_accept_hosts, true},
{user, "foo"},
{password, "morot"},
{user_dir, UserDir},
{user_interaction, false},
{ssh_msg_debug_fun,DbgFun}]),
%% Beware, implementation knowledge:
gen_fsm:send_all_state_event(ConnectionRef,{ssh_msg_debug,false,<<"Hello">>,<<>>}),
receive
{msg_dbg,X={ConnectionRef,false,<<"Hello">>,<<>>}} ->
ct:log("Got expected dbg msg ~p",[X]),
ssh:stop_daemon(Pid);
{msg_dbg,X={_,false,<<"Hello">>,<<>>}} ->
ct:log("Got dbg msg but bad ConnectionRef (~p expected) ~p",[ConnectionRef,X]),
ssh:stop_daemon(Pid),
{fail, "Bad ConnectionRef received"};
{msg_dbg,X} ->
ct:log("Got bad dbg msg ~p",[X]),
ssh:stop_daemon(Pid),
{fail,"Bad msg received"}
after 1000 ->
ssh:stop_daemon(Pid),
{fail,timeout}
end.
%%--------------------------------------------------------------------
connectfun_disconnectfun_server(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),
Parent = self(),
Ref = make_ref(),
ConnFun = fun(_,_,_) -> Parent ! {connect,Ref} end,
DiscFun = fun(R) -> Parent ! {disconnect,Ref,R} end,
{Pid, Host, Port} = ssh_test_lib:daemon([{system_dir, SysDir},
{user_dir, UserDir},
{password, "morot"},
{failfun, fun ssh_test_lib:failfun/2},
{disconnectfun, DiscFun},
{connectfun, ConnFun}]),
ConnectionRef =
ssh_test_lib:connect(Host, Port, [{silently_accept_hosts, true},
{user, "foo"},
{password, "morot"},
{user_dir, UserDir},
{user_interaction, false}]),
receive
{connect,Ref} ->
ssh:close(ConnectionRef),
receive
{disconnect,Ref,R} ->
ct:log("Disconnect result: ~p",[R]),
ssh:stop_daemon(Pid)
after 2000 ->
{fail, "No disconnectfun action"}
end
after 2000 ->
{fail, "No connectfun action"}
end.
%%--------------------------------------------------------------------
connectfun_disconnectfun_client(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),
Parent = self(),
Ref = make_ref(),
DiscFun = fun(R) -> Parent ! {disconnect,Ref,R} end,
{Pid, Host, Port} = ssh_test_lib:daemon([{system_dir, SysDir},
{user_dir, UserDir},
{password, "morot"},
{failfun, fun ssh_test_lib:failfun/2}]),
_ConnectionRef =
ssh_test_lib:connect(Host, Port, [{silently_accept_hosts, true},
{user, "foo"},
{password, "morot"},
{user_dir, UserDir},
{disconnectfun, DiscFun},
{user_interaction, false}]),
ssh:stop_daemon(Pid),
receive
{disconnect,Ref,R} ->
ct:log("Disconnect result: ~p",[R])
after 2000 ->
{fail, "No disconnectfun action"}
end.
%%--------------------------------------------------------------------
%%% validate client that uses the 'ssh_msg_debug_fun' option
ssh_msg_debug_fun_option_server(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),
Parent = self(),
DbgFun = fun(ConnRef,Displ,Msg,Lang) -> Parent ! {msg_dbg,{ConnRef,Displ,Msg,Lang}} end,
ConnFun = fun(_,_,_) -> Parent ! {connection_pid,self()} end,
{Pid, Host, Port} = ssh_test_lib:daemon([{system_dir, SysDir},
{user_dir, UserDir},
{password, "morot"},
{failfun, fun ssh_test_lib:failfun/2},
{connectfun, ConnFun},
{ssh_msg_debug_fun, DbgFun}]),
_ConnectionRef =
ssh_test_lib:connect(Host, Port, [{silently_accept_hosts, true},
{user, "foo"},
{password, "morot"},
{user_dir, UserDir},
{user_interaction, false}]),
receive
{connection_pid,Server} ->
%% Beware, implementation knowledge:
gen_fsm:send_all_state_event(Server,{ssh_msg_debug,false,<<"Hello">>,<<>>}),
receive
{msg_dbg,X={_,false,<<"Hello">>,<<>>}} ->
ct:log("Got expected dbg msg ~p",[X]),
ssh:stop_daemon(Pid);
{msg_dbg,X} ->
ct:log("Got bad dbg msg ~p",[X]),
ssh:stop_daemon(Pid),
{fail,"Bad msg received"}
after 3000 ->
ssh:stop_daemon(Pid),
{fail,timeout2}
end
after 3000 ->
ssh:stop_daemon(Pid),
{fail,timeout1}
end.
%%--------------------------------------------------------------------
disconnectfun_option_server(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),
Parent = self(),
DisConnFun = fun(Reason) -> Parent ! {disconnect,Reason} end,
{Pid, Host, Port} = ssh_test_lib:daemon([{system_dir, SysDir},
{user_dir, UserDir},
{password, "morot"},
{failfun, fun ssh_test_lib:failfun/2},
{disconnectfun, DisConnFun}]),
ConnectionRef =
ssh_test_lib:connect(Host, Port, [{silently_accept_hosts, true},
{user, "foo"},
{password, "morot"},
{user_dir, UserDir},
{user_interaction, false}]),
ssh:close(ConnectionRef),
receive
{disconnect,Reason} ->
ct:log("Server detected disconnect: ~p",[Reason]),
ssh:stop_daemon(Pid),
ok
after 3000 ->
receive
X -> ct:log("received ~p",[X])
after 0 -> ok
end,
{fail,"Timeout waiting for disconnect"}
end.
%%--------------------------------------------------------------------
disconnectfun_option_client(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),
Parent = self(),
DisConnFun = fun(Reason) -> Parent ! {disconnect,Reason} end,
{Pid, Host, Port} = ssh_test_lib:daemon([{system_dir, SysDir},
{user_dir, UserDir},
{password, "morot"},
{failfun, fun ssh_test_lib:failfun/2}]),
_ConnectionRef =
ssh_test_lib:connect(Host, Port, [{silently_accept_hosts, true},
{user, "foo"},
{password, "morot"},
{user_dir, UserDir},
{user_interaction, false},
{disconnectfun, DisConnFun}]),
ssh:stop_daemon(Pid),
receive
{disconnect,Reason} ->
ct:log("Client detected disconnect: ~p",[Reason]),
ok
after 3000 ->
receive
X -> ct:log("received ~p",[X])
after 0 -> ok
end,
{fail,"Timeout waiting for disconnect"}
end.
%%--------------------------------------------------------------------
unexpectedfun_option_server(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),
Parent = self(),
ConnFun = fun(_,_,_) -> Parent ! {connection_pid,self()} end,
UnexpFun = fun(Msg,Peer) ->
Parent ! {unexpected,Msg,Peer,self()},
skip
end,
{Pid, Host, Port} = ssh_test_lib:daemon([{system_dir, SysDir},
{user_dir, UserDir},
{password, "morot"},
{failfun, fun ssh_test_lib:failfun/2},
{connectfun, ConnFun},
{unexpectedfun, UnexpFun}]),
_ConnectionRef =
ssh_test_lib:connect(Host, Port, [{silently_accept_hosts, true},
{user, "foo"},
{password, "morot"},
{user_dir, UserDir},
{user_interaction, false}]),
receive
{connection_pid,Server} ->
%% Beware, implementation knowledge:
Server ! unexpected_message,
receive
{unexpected, unexpected_message, {{_,_,_,_},_}, _} -> ok;
{unexpected, unexpected_message, Peer, _} -> ct:fail("Bad peer ~p",[Peer]);
M = {unexpected, _, _, _} -> ct:fail("Bad msg ~p",[M])
after 3000 ->
ssh:stop_daemon(Pid),
{fail,timeout2}
end
after 3000 ->
ssh:stop_daemon(Pid),
{fail,timeout1}
end.
%%--------------------------------------------------------------------
unexpectedfun_option_client(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),
Parent = self(),
UnexpFun = fun(Msg,Peer) ->
Parent ! {unexpected,Msg,Peer,self()},
skip
end,
{Pid, Host, Port} = ssh_test_lib:daemon([{system_dir, SysDir},
{user_dir, UserDir},
{password, "morot"},
{failfun, fun ssh_test_lib:failfun/2}]),
ConnectionRef =
ssh_test_lib:connect(Host, Port, [{silently_accept_hosts, true},
{user, "foo"},
{password, "morot"},
{user_dir, UserDir},
{user_interaction, false},
{unexpectedfun, UnexpFun}]),
%% Beware, implementation knowledge:
ConnectionRef ! unexpected_message,
receive
{unexpected, unexpected_message, {{_,_,_,_},_}, ConnectionRef} ->
ok;
{unexpected, unexpected_message, Peer, ConnectionRef} ->
ct:fail("Bad peer ~p",[Peer]);
M = {unexpected, _, _, _} ->
ct:fail("Bad msg ~p",[M])
after 3000 ->
ssh:stop_daemon(Pid),
{fail,timeout}
end.
%%--------------------------------------------------------------------
%%% Test connect_timeout option in ssh:connect/4
ssh_connect_timeout(_Config) ->
ConnTimeout = 2000,
{error,{faked_transport,connect,TimeoutToTransport}} =
ssh:connect("localhost", 12345,
[{transport,{tcp,?MODULE,tcp_closed}},
{connect_timeout,ConnTimeout}],
1000),
case TimeoutToTransport of
ConnTimeout -> ok;
Other ->
ct:log("connect_timeout is ~p but transport received ~p",[ConnTimeout,Other]),
{fail,"ssh:connect/4 wrong connect_timeout received in transport"}
end.
%% Plugin function for the test above
connect(_Host, _Port, _Opts, Timeout) ->
{error, {faked_transport,connect,Timeout}}.
%%--------------------------------------------------------------------
%%% Test fourth argument in ssh:connect/4
ssh_connect_arg4_timeout(_Config) ->
Timeout = 1000,
Parent = self(),
%% start the server
Server = spawn(fun() ->
{ok,Sl} = gen_tcp:listen(0,[]),
{ok,{_,Port}} = inet:sockname(Sl),
Parent ! {port,self(),Port},
Rsa = gen_tcp:accept(Sl),
ct:log("Server gen_tcp:accept got ~p",[Rsa]),
receive after 2*Timeout -> ok end %% let client timeout first
end),
%% Get listening port
Port = receive
{port,Server,ServerPort} -> ServerPort
after
10000 -> ct:fail("timeout ~p:~p",[?MODULE,?LINE])
end,
%% try to connect with a timeout, but "supervise" it
Client = spawn(fun() ->
T0 = erlang:monotonic_time(),
Rc = ssh:connect("localhost",Port,[],Timeout),
ct:log("Client ssh:connect got ~p",[Rc]),
Parent ! {done,self(),Rc,T0}
end),
%% Wait for client reaction on the connection try:
receive
{done, Client, {error,timeout}, T0} ->
Msp = ms_passed(T0),
exit(Server,hasta_la_vista___baby),
Low = 0.9*Timeout,
High = 2.5*Timeout,
ct:log("Timeout limits: ~.4f - ~.4f ms, timeout "
"was ~.4f ms, expected ~p ms",[Low,High,Msp,Timeout]),
if
Low<Msp, Msp<High -> ok;
true -> {fail, "timeout not within limits"}
end;
{done, Client, {error,Other}, _T0} ->
ct:log("Error message \"~p\" from the client is unexpected.",[{error,Other}]),
{fail, "Unexpected error message"};
{done, Client, {ok,_Ref}, _T0} ->
{fail,"ssh-connected ???"}
after
5000 ->
exit(Server,hasta_la_vista___baby),
exit(Client,hasta_la_vista___baby),
{fail, "Didn't timeout"}
end.
%% Help function, elapsed milliseconds since T0
ms_passed(T0) ->
%% OTP 18
erlang:convert_time_unit(erlang:monotonic_time() - T0,
native,
micro_seconds) / 1000.
%%--------------------------------------------------------------------
ssh_daemon_minimal_remote_max_packet_size_option(Config) ->
SystemDir = ?config(data_dir, 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),
{Server, Host, Port} = ssh_test_lib:daemon([{system_dir, SystemDir},
{user_dir, UserDir},
{user_passwords, [{"vego", "morot"}]},
{failfun, fun ssh_test_lib:failfun/2},
{minimal_remote_max_packet_size, 14}]),
Conn =
ssh_test_lib:connect(Host, Port, [{silently_accept_hosts, true},
{user_dir, UserDir},
{user_interaction, false},
{user, "vego"},
{password, "morot"}]),
%% Try the limits of the minimal_remote_max_packet_size:
{ok, _ChannelId} = ssh_connection:session_channel(Conn, 100, 14, infinity),
{open_error,_,"Maximum packet size below 14 not supported",_} =
ssh_connection:session_channel(Conn, 100, 13, infinity),
ssh:close(Conn),
ssh:stop_daemon(Server).
%%--------------------------------------------------------------------
%% This test try every algorithm by connecting to an Erlang server
id_string_no_opt_client(Config) ->
{Server, _Host, Port} = fake_daemon(Config),
{error,_} = ssh:connect("localhost", Port, [], 1000),
receive
{id,Server,"SSH-2.0-Erlang/"++Vsn} ->
true = expected_ssh_vsn(Vsn);
{id,Server,Other} ->
ct:fail("Unexpected id: ~s.",[Other])
after 5000 ->
{fail,timeout}
end.
%%--------------------------------------------------------------------
id_string_own_string_client(Config) ->
{Server, _Host, Port} = fake_daemon(Config),
{error,_} = ssh:connect("localhost", Port, [{id_string,"Pelle"}], 1000),
receive
{id,Server,"SSH-2.0-Pelle\r\n"} ->
ok;
{id,Server,Other} ->
ct:fail("Unexpected id: ~s.",[Other])
after 5000 ->
{fail,timeout}
end.
%%--------------------------------------------------------------------
id_string_random_client(Config) ->
{Server, _Host, Port} = fake_daemon(Config),
{error,_} = ssh:connect("localhost", Port, [{id_string,random}], 1000),
receive
{id,Server,Id="SSH-2.0-Erlang"++_} ->
ct:fail("Unexpected id: ~s.",[Id]);
{id,Server,Rnd="SSH-2.0-"++_} ->
ct:log("Got correct ~s",[Rnd]);
{id,Server,Id} ->
ct:fail("Unexpected id: ~s.",[Id])
after 5000 ->
{fail,timeout}
end.
%%--------------------------------------------------------------------
id_string_no_opt_server(Config) ->
{_Server, Host, Port} = ssh_test_lib:std_daemon(Config, []),
{ok,S1}=gen_tcp:connect(Host,Port,[{active,false},{packet,line}]),
{ok,"SSH-2.0-Erlang/"++Vsn} = gen_tcp:recv(S1, 0, 2000),
true = expected_ssh_vsn(Vsn).
%%--------------------------------------------------------------------
id_string_own_string_server(Config) ->
{_Server, Host, Port} = ssh_test_lib:std_daemon(Config, [{id_string,"Olle"}]),
{ok,S1}=gen_tcp:connect(Host,Port,[{active,false},{packet,line}]),
{ok,"SSH-2.0-Olle\r\n"} = gen_tcp:recv(S1, 0, 2000).
%%--------------------------------------------------------------------
id_string_random_server(Config) ->
{_Server, Host, Port} = ssh_test_lib:std_daemon(Config, [{id_string,random}]),
{ok,S1}=gen_tcp:connect(Host,Port,[{active,false},{packet,line}]),
{ok,"SSH-2.0-"++Rnd} = gen_tcp:recv(S1, 0, 2000),
case Rnd of
"Erlang"++_ -> ct:log("Id=~p",[Rnd]),
{fail,got_default_id};
"Olle\r\n" -> {fail,got_previous_tests_value};
_ -> ct:log("Got ~s.",[Rnd])
end.
%%--------------------------------------------------------------------
ssh_connect_negtimeout_parallel(Config) -> ssh_connect_negtimeout(Config,true).
ssh_connect_negtimeout_sequential(Config) -> ssh_connect_negtimeout(Config,false).
ssh_connect_negtimeout(Config, Parallel) ->
process_flag(trap_exit, true),
SystemDir = filename:join(?config(priv_dir, Config), system),
UserDir = ?config(priv_dir, Config),
NegTimeOut = 2000, % ms
ct:log("Parallel: ~p",[Parallel]),
{_Pid, Host, Port} = ssh_test_lib:daemon([{system_dir, SystemDir},{user_dir, UserDir},
{parallel_login, Parallel},
{negotiation_timeout, NegTimeOut},
{failfun, fun ssh_test_lib:failfun/2}]),
{ok,Socket} = gen_tcp:connect(Host, Port, []),
Factor = 2,
ct:log("And now sleeping ~p*NegTimeOut (~p ms)...", [Factor, round(Factor * NegTimeOut)]),
ct:sleep(round(Factor * NegTimeOut)),
case inet:sockname(Socket) of
{ok,_} -> ct:fail("Socket not closed");
{error,_} -> ok
end.
%%--------------------------------------------------------------------
%%% Test that ssh connection does not timeout if the connection is established (parallel)
ssh_connect_nonegtimeout_connected_parallel(Config) ->
ssh_connect_nonegtimeout_connected(Config, true).
%%% Test that ssh connection does not timeout if the connection is established (non-parallel)
ssh_connect_nonegtimeout_connected_sequential(Config) ->
ssh_connect_nonegtimeout_connected(Config, false).
ssh_connect_nonegtimeout_connected(Config, Parallel) ->
process_flag(trap_exit, true),
SystemDir = filename:join(?config(priv_dir, Config), system),
UserDir = ?config(priv_dir, Config),
NegTimeOut = 20000, % ms
ct:log("Parallel: ~p",[Parallel]),
{_Pid, _Host, Port} = ssh_test_lib:daemon([{system_dir, SystemDir},{user_dir, UserDir},
{parallel_login, Parallel},
{negotiation_timeout, NegTimeOut},
{failfun, fun ssh_test_lib:failfun/2}]),
ct:log("~p Listen ~p:~p",[_Pid,_Host,Port]),
ct:sleep(500),
IO = ssh_test_lib:start_io_server(),
Shell = ssh_test_lib:start_shell(Port, IO, UserDir),
receive
Error = {'EXIT', _, _} ->
ct:log("~p",[Error]),
ct:fail(no_ssh_connection);
ErlShellStart ->
ct:log("---Erlang shell start: ~p~n", [ErlShellStart]),
one_shell_op(IO, NegTimeOut),
one_shell_op(IO, NegTimeOut),
Factor = 2,
ct:log("And now sleeping ~p*NegTimeOut (~p ms)...", [Factor, round(Factor * NegTimeOut)]),
ct:sleep(round(Factor * NegTimeOut)),
one_shell_op(IO, NegTimeOut)
after
10000 -> ct:fail("timeout ~p:~p",[?MODULE,?LINE])
end,
exit(Shell, kill).
one_shell_op(IO, TimeOut) ->
ct:log("One shell op: Waiting for prompter"),
receive
ErlPrompt0 -> ct:log("Erlang prompt: ~p~n", [ErlPrompt0])
after TimeOut -> ct:fail("Timeout waiting for promter")
end,
IO ! {input, self(), "2*3*7.\r\n"},
receive
Echo0 -> ct:log("Echo: ~p ~n", [Echo0])
after TimeOut -> ct:fail("Timeout waiting for echo")
end,
receive
?NEWLINE -> ct:log("NEWLINE received", [])
after TimeOut ->
receive Any1 -> ct:log("Bad NEWLINE: ~p",[Any1])
after 0 -> ct:fail("Timeout waiting for NEWLINE")
end
end,
receive
Result0 -> ct:log("Result: ~p~n", [Result0])
after TimeOut -> ct:fail("Timeout waiting for result")
end.
%%--------------------------------------------------------------------
max_sessions_ssh_connect_parallel(Config) ->
max_sessions(Config, true, connect_fun(ssh__connect,Config)).
max_sessions_ssh_connect_sequential(Config) ->
max_sessions(Config, false, connect_fun(ssh__connect,Config)).
max_sessions_sftp_start_channel_parallel(Config) ->
max_sessions(Config, true, connect_fun(ssh_sftp__start_channel, Config)).
max_sessions_sftp_start_channel_sequential(Config) ->
max_sessions(Config, false, connect_fun(ssh_sftp__start_channel, Config)).
%%%---- helpers:
connect_fun(ssh__connect, Config) ->
fun(Host,Port) ->
ssh_test_lib:connect(Host, Port,
[{silently_accept_hosts, true},
{user_dir, ?config(priv_dir,Config)},
{user_interaction, false},
{user, "carni"},
{password, "meat"}
])
%% ssh_test_lib returns R when ssh:connect returns {ok,R}
end;
connect_fun(ssh_sftp__start_channel, _Config) ->
fun(Host,Port) ->
{ok,_Pid,ConnRef} =
ssh_sftp:start_channel(Host, Port,
[{silently_accept_hosts, true},
{user, "carni"},
{password, "meat"}
]),
ConnRef
end.
max_sessions(Config, ParallelLogin, Connect0) when is_function(Connect0,2) ->
Connect = fun(Host,Port) ->
R = Connect0(Host,Port),
ct:log("Connect(~p,~p) -> ~p",[Host,Port,R]),
R
end,
SystemDir = filename:join(?config(priv_dir, Config), system),
UserDir = ?config(priv_dir, Config),
MaxSessions = 5,
{Pid, Host, Port} = ssh_test_lib:daemon([
{system_dir, SystemDir},
{user_dir, UserDir},
{user_passwords, [{"carni", "meat"}]},
{parallel_login, ParallelLogin},
{max_sessions, MaxSessions}
]),
ct:log("~p Listen ~p:~p for max ~p sessions",[Pid,Host,Port,MaxSessions]),
try [Connect(Host,Port) || _ <- lists:seq(1,MaxSessions)]
of
Connections ->
%% Step 1 ok: could set up max_sessions connections
ct:log("Connections up: ~p",[Connections]),
[_|_] = Connections,
%% Now try one more than alowed:
ct:log("Info Report might come here...",[]),
try Connect(Host,Port)
of
_ConnectionRef1 ->
ssh:stop_daemon(Pid),
{fail,"Too many connections accepted"}
catch
error:{badmatch,{error,"Connection closed"}} ->
%% Step 2 ok: could not set up max_sessions+1 connections
%% This is expected
%% Now stop one connection and try to open one more
ok = ssh:close(hd(Connections)),
receive after 250 -> ok end, % sleep so the supervisor has time to count down. Not nice...
try Connect(Host,Port)
of
_ConnectionRef1 ->
%% Step 3 ok: could set up one more connection after killing one
%% Thats good.
ssh:stop_daemon(Pid),
ok
catch
error:{badmatch,{error,"Connection closed"}} ->
%% Bad indeed. Could not set up one more connection even after killing
%% one existing. Very bad.
ssh:stop_daemon(Pid),
{fail,"Does not decrease # active sessions"}
end
end
catch
error:{badmatch,{error,"Connection closed"}} ->
ssh:stop_daemon(Pid),
{fail,"Too few connections accepted"}
end.
%%--------------------------------------------------------------------
%% Internal functions ------------------------------------------------
%%--------------------------------------------------------------------
expected_ssh_vsn(Str) ->
try
{ok,L} = application:get_all_key(ssh),
proplists:get_value(vsn,L,"")++"\r\n"
of
Str -> true;
"\r\n" -> true;
_ -> false
catch
_:_ -> true %% ssh not started so we dont't know
end.
fake_daemon(_Config) ->
Parent = self(),
%% start the server
Server = spawn(fun() ->
{ok,Sl} = gen_tcp:listen(0,[{packet,line}]),
{ok,{Host,Port}} = inet:sockname(Sl),
ct:log("fake_daemon listening on ~p:~p~n",[Host,Port]),
Parent ! {sockname,self(),Host,Port},
Rsa = gen_tcp:accept(Sl),
ct:log("Server gen_tcp:accept got ~p",[Rsa]),
{ok,S} = Rsa,
receive
{tcp, S, Id} -> Parent ! {id,self(),Id}
after
10000 -> ct:fail("timeout ~p:~p",[?MODULE,?LINE])
end
end),
%% Get listening host and port
receive
{sockname,Server,ServerHost,ServerPort} -> {Server, ServerHost, ServerPort}
after
10000 -> ct:fail("timeout ~p:~p",[?MODULE,?LINE])
end.
