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-rw-r--r--lib/ssh/test/Makefile2
-rw-r--r--lib/ssh/test/ssh_protocol_SUITE.erl314
-rw-r--r--lib/ssh/test/ssh_protocol_SUITE_data/id_dsa13
-rw-r--r--lib/ssh/test/ssh_protocol_SUITE_data/id_rsa15
-rw-r--r--lib/ssh/test/ssh_protocol_SUITE_data/ssh_host_dsa_key13
-rw-r--r--lib/ssh/test/ssh_protocol_SUITE_data/ssh_host_dsa_key.pub11
-rw-r--r--lib/ssh/test/ssh_protocol_SUITE_data/ssh_host_rsa_key16
-rw-r--r--lib/ssh/test/ssh_protocol_SUITE_data/ssh_host_rsa_key.pub5
-rw-r--r--lib/ssh/test/ssh_trpt_test_lib.erl691
9 files changed, 1080 insertions, 0 deletions
diff --git a/lib/ssh/test/Makefile b/lib/ssh/test/Makefile
index 6503d5b643..47c189c162 100644
--- a/lib/ssh/test/Makefile
+++ b/lib/ssh/test/Makefile
@@ -33,8 +33,10 @@ VSN=$(GS_VSN)
MODULES= \
ssh_test_lib \
+ ssh_trpt_test_lib \
ssh_sup_SUITE \
ssh_basic_SUITE \
+ ssh_protocol_SUITE \
ssh_to_openssh_SUITE \
ssh_sftp_SUITE \
ssh_sftpd_SUITE \
diff --git a/lib/ssh/test/ssh_protocol_SUITE.erl b/lib/ssh/test/ssh_protocol_SUITE.erl
new file mode 100644
index 0000000000..3fb2840a19
--- /dev/null
+++ b/lib/ssh/test/ssh_protocol_SUITE.erl
@@ -0,0 +1,314 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2008-2015. 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_protocol_SUITE).
+
+-include_lib("common_test/include/ct.hrl").
+-include_lib("kernel/include/inet.hrl").
+-include_lib("ssh/src/ssh.hrl"). % ?UINT32, ?BYTE, #ssh{} ...
+-include_lib("ssh/src/ssh_transport.hrl").
+-include_lib("ssh/src/ssh_auth.hrl").
+
+%% Note: This directive should only be used in test suites.
+-compile(export_all).
+
+-define(NEWLINE, <<"\r\n">>).
+-define(REKEY_DATA_TMO, 65000).
+
+-define(v(Key, Config), proplists:get_value(Key, Config)).
+-define(v(Key, Config, Default), proplists:get_value(Key, Config, Default)).
+
+
+%%--------------------------------------------------------------------
+%% Common Test interface functions -----------------------------------
+%%--------------------------------------------------------------------
+
+suite() ->
+ [{ct_hooks,[ts_install_cth]}].
+
+all() ->
+ [{group,tool_tests}
+ ].
+
+groups() ->
+ [{tool_tests, [], [lib_works_as_client,
+ lib_works_as_server,
+ lib_match,
+ lib_no_match
+ ]}
+ ].
+
+
+init_per_suite(Config) ->
+ start_std_daemon( setup_dirs( start_apps(Config))).
+
+end_per_suite(Config) ->
+ stop_apps(Config).
+
+
+init_per_testcase(_TestCase, Config) ->
+ check_std_daemon_works(Config, ?LINE).
+
+end_per_testcase(_TestCase, Config) ->
+ check_std_daemon_works(Config, ?LINE).
+
+
+%%%--------------------------------------------------------------------
+%%% Test Cases --------------------------------------------------------
+%%%--------------------------------------------------------------------
+
+%%%--------------------------------------------------------------------
+%%% Connect to an erlang server and check that the testlib acts as a client.
+lib_works_as_client(Config) ->
+ %% Connect and negotiate keys
+ {ok,InitialState} =
+ ssh_trpt_test_lib:exec(
+ [{set_options, [print_ops, print_seqnums, print_messages]},
+ {connect,
+ server_host(Config),server_port(Config),
+ [{silently_accept_hosts, true},
+ {user_dir, user_dir(Config)},
+ {user_interaction, false}]},
+ receive_hello,
+ {send, hello},
+ {send, ssh_msg_kexinit},
+ {match, #ssh_msg_kexinit{_='_'}, receive_msg},
+ {send, ssh_msg_kexdh_init},
+ {match,# ssh_msg_kexdh_reply{_='_'}, receive_msg},
+ {send, #ssh_msg_newkeys{}},
+ {match, #ssh_msg_newkeys{_='_'}, receive_msg}
+ ]
+ ),
+
+ %% Do the authentcation
+ {User,Pwd} = server_user_password(Config),
+ {ok,EndState} =
+ ssh_trpt_test_lib:exec(
+ [{send, #ssh_msg_service_request{name = "ssh-userauth"}},
+ {match, #ssh_msg_service_accept{name = "ssh-userauth"}, receive_msg},
+ {send, #ssh_msg_userauth_request{user = User,
+ service = "ssh-connection",
+ method = "password",
+ data = <<?BOOLEAN(?FALSE),
+ ?STRING(unicode:characters_to_binary(Pwd))>>
+ }},
+ {match, #ssh_msg_userauth_success{_='_'}, receive_msg}
+ ], InitialState),
+
+ %% Disconnect
+ {ok,_} =
+ ssh_trpt_test_lib:exec(
+ [{send, #ssh_msg_disconnect{code = ?SSH_DISCONNECT_BY_APPLICATION,
+ description = "End of the fun",
+ language = ""
+ }},
+ close_socket
+ ], EndState).
+
+
+%%--------------------------------------------------------------------
+%%% Connect an erlang client and check that the testlib can act as a server.
+lib_works_as_server(Config) ->
+ {User,_Pwd} = server_user_password(Config),
+
+ %% Create a listening socket as server socket:
+ {ok,InitialState} = ssh_trpt_test_lib:exec(listen),
+ HostPort = ssh_trpt_test_lib:server_host_port(InitialState),
+
+ %% Start a process handling one connection on the server side:
+ spawn_link(
+ fun() ->
+ {ok,_} =
+ ssh_trpt_test_lib:exec(
+ [{set_options, [print_ops, print_messages]},
+ {accept, [{system_dir, system_dir(Config)},
+ {user_dir, user_dir(Config)}]},
+ receive_hello,
+ {send, hello},
+
+ {send, ssh_msg_kexinit},
+ {match, #ssh_msg_kexinit{_='_'}, receive_msg},
+
+ {match, #ssh_msg_kexdh_init{_='_'}, receive_msg},
+ {send, ssh_msg_kexdh_reply},
+
+ {send, #ssh_msg_newkeys{}},
+ {match, #ssh_msg_newkeys{_='_'}, receive_msg},
+
+ {match, #ssh_msg_service_request{name="ssh-userauth"}, receive_msg},
+ {send, #ssh_msg_service_accept{name="ssh-userauth"}},
+
+ {match, #ssh_msg_userauth_request{service="ssh-connection",
+ method="none",
+ user=User,
+ _='_'}, receive_msg},
+
+ {send, #ssh_msg_userauth_failure{authentications = "password",
+ partial_success = false}},
+
+ {match, #ssh_msg_userauth_request{service="ssh-connection",
+ method="password",
+ user=User,
+ _='_'}, receive_msg},
+ {send, #ssh_msg_userauth_success{}},
+ close_socket,
+ print_state
+ ],
+ InitialState)
+ end),
+
+ %% and finally connect to it with a regular Erlang SSH client:
+ {ok,_} = std_connect(HostPort, Config).
+
+%%--------------------------------------------------------------------
+%%% Matching
+lib_match(_Config) ->
+ {ok,_} =
+ ssh_trpt_test_lib:exec([{set_options, [print_ops]},
+ {match, abc, abc},
+ {match, '$a', {cde,fgh}},
+ {match, {cde,fgh}, '$a'},
+ {match, '_', {cde,fgh}},
+ {match, [a,'$a',b], [a,{cde,fgh},b]},
+ {match, [a,'$a'|'$b'], [a,{cde,fgh},b,c]},
+ {match, '$b', [b,c]}
+ ]).
+
+%%--------------------------------------------------------------------
+%%% Not matching
+lib_no_match(_Config) ->
+ case ssh_trpt_test_lib:exec([{set_options, [print_ops]},
+ {match, '$x', b},
+ {match, a, '$x'}])
+ of
+ {ok,_} -> {fail,"Unexpected match"};
+ {error, {_Op,{expected,a,b},_State}} -> ok
+ end.
+
+%%%================================================================
+%%%==== Internal functions ========================================
+%%%================================================================
+
+%%%---- init_suite and end_suite ---------------------------------------
+start_apps(Config) ->
+ catch crypto:stop(),
+ case catch crypto:start() of
+ ok ->
+ catch ssh:stop(),
+ ok = ssh:start(),
+ [{stop_apps,
+ fun() ->
+ ssh:stop(),
+ crypto:stop()
+ end} | Config];
+ _Else ->
+ {skip, "Crypto could not be started!"}
+ end.
+
+
+stop_apps(Config) ->
+ (?v(stop_apps, Config, fun()-> ok end))(),
+ ssh:stop().
+
+
+setup_dirs(Config) ->
+ DataDir = ?config(data_dir, Config),
+ PrivDir = ?config(priv_dir, Config),
+ ssh_test_lib:setup_rsa(DataDir, PrivDir),
+ Config.
+
+system_dir(Config) -> filename:join(?config(priv_dir, Config), system).
+
+user_dir(Config) -> ?config(priv_dir, Config).
+
+%%%----------------------------------------------------------------
+start_std_daemon(Config) ->
+ start_std_daemon(Config, []).
+
+start_std_daemon(Config, ExtraOpts) ->
+ PrivDir = ?config(priv_dir, Config),
+ UserDir = filename:join(PrivDir, nopubkey), % to make sure we don't use public-key-auth
+ file:make_dir(UserDir),
+ UserPasswords = [{"user1","pwd1"}],
+ Options = [{system_dir, system_dir(Config)},
+ {user_dir, user_dir(Config)},
+ {user_passwords, UserPasswords},
+ {failfun, fun ssh_test_lib:failfun/2}
+ | ExtraOpts],
+ Ref = {Server, Host, Port} = ssh_test_lib:daemon(Options),
+ ct:log("Std server ~p started at ~p:~p~nOptions=~p",[Server, Host, Port, Options]),
+ [{server,Ref}, {user_passwords, UserPasswords} | Config].
+
+
+stop_std_daemon(Config) ->
+ ssh:stop_daemon(server_pid(Config)),
+ ct:log("Std server ~p at ~p:~p stopped", [server_pid(Config), server_host(Config), server_port(Config)]),
+ lists:keydelete(server, 1, Config).
+
+check_std_daemon_works(Config, Line) ->
+ case std_connect(Config) of
+ {ok,C} ->
+ ct:log("Server ~p:~p ~p is ok at line ~p",
+ [server_host(Config), server_port(Config),
+ server_pid(Config), Line]),
+ ok = ssh:close(C),
+ Config;
+ Error = {error,_} ->
+ {fail,
+ lists:flatten(
+ io_lib:format("Standard server ~p:~p ~p is ill at line ~p: ~p",
+ [server_host(Config), server_port(Config),
+ server_pid(Config), Line, Error])
+ )
+ }
+ end.
+
+server_pid(Config) -> element(1,?v(server,Config)).
+server_host(Config) -> element(2,?v(server,Config)).
+server_port(Config) -> element(3,?v(server,Config)).
+
+server_user_password(Config) -> server_user_password(1, Config).
+
+server_user_password(N, Config) -> lists:nth(N, ?v(user_passwords,Config)).
+
+
+std_connect(Config) ->
+ {User,Pwd} = server_user_password(Config),
+ std_connect(server_host(Config), server_port(Config),
+ Config,
+ [{user,User},{password,Pwd}]).
+
+std_connect({Host,Port}, Config) ->
+ {User,Pwd} = server_user_password(Config),
+ std_connect(Host, Port, Config, [{user,User},{password,Pwd}]).
+
+std_connect({Host,Port}, Config, Opts) ->
+ std_connect(Host, Port, Config, Opts).
+
+std_connect(Host, Port, Config, Opts) ->
+ ssh:connect(Host, Port,
+ [{silently_accept_hosts, true},
+ {user_dir, user_dir(Config)},
+ {user_interaction, false} | Opts],
+ 30000).
+
+
+%%%----------------------------------------------------------------
diff --git a/lib/ssh/test/ssh_protocol_SUITE_data/id_dsa b/lib/ssh/test/ssh_protocol_SUITE_data/id_dsa
new file mode 100644
index 0000000000..d306f8b26e
--- /dev/null
+++ b/lib/ssh/test/ssh_protocol_SUITE_data/id_dsa
@@ -0,0 +1,13 @@
+-----BEGIN DSA PRIVATE KEY-----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+-----END DSA PRIVATE KEY-----
+
diff --git a/lib/ssh/test/ssh_protocol_SUITE_data/id_rsa b/lib/ssh/test/ssh_protocol_SUITE_data/id_rsa
new file mode 100644
index 0000000000..9d7e0dd5fb
--- /dev/null
+++ b/lib/ssh/test/ssh_protocol_SUITE_data/id_rsa
@@ -0,0 +1,15 @@
+-----BEGIN RSA PRIVATE KEY-----
+MIICXAIBAAKBgQD1OET+3O/Bvj/dtjxDTXmj1oiJt4sIph5kGy0RfjoPrZfaS+CU
+DhakCmS6t2ivxWFgtpKWaoGMZMJqWj6F6ZsumyFl3FPBtujwY/35cgifrI9Ns4Tl
+zR1uuengNBmV+WRQ5cd9F2qS6Z8aDQihzt0r8JUqLcK+VQbrmNzboCCQQwIDAQAB
+AoGAPQEyqPTt8JUT7mRXuaacjFXiweAXhp9NEDpyi9eLOjtFe9lElZCrsUOkq47V
+TGUeRKEm9qSodfTbKPoqc8YaBJGJPhUaTAcha+7QcDdfHBvIsgxvU7ePVnlpXRp3
+CCUEMPhlnx6xBoTYP+fRU0e3+xJIPVyVCqX1jAdUMkzfRoECQQD6ux7B1QJAIWyK
+SGkbDUbBilNmzCFNgIpOP6PA+bwfi5d16diTpra5AX09keQABAo/KaP1PdV8Vg0p
+z4P3A7G3AkEA+l+AKG6m0kQTTBMJDqOdVPYwe+5GxunMaqmhokpEbuGsrZBl5Dvd
+WpcBjR7jmenrhKZRIuA+Fz5HPo/UQJPl1QJBAKxstDkeED8j/S2XoFhPKAJ+6t39
+sUVICVTIZQeXdmzHJXCcUSkw8+WEhakqw/3SyW0oaK2FSWQJFWJUZ+8eJj8CQEh3
+xeduB5kKnS9CvzdeghZqX6QvVosSdtlUmfUYW/BgH5PpHKTP8wTaeld3XldZTpMJ
+dKiMkUw2+XYROVUrubUCQD+Na1LhULlpn4ISEtIEfqpdlUhxDgO15Wg8USmsng+x
+ICliVOSQtwaZjm8kwaFt0W7XnpnDxbRs37vIEbIMWak=
+-----END RSA PRIVATE KEY-----
diff --git a/lib/ssh/test/ssh_protocol_SUITE_data/ssh_host_dsa_key b/lib/ssh/test/ssh_protocol_SUITE_data/ssh_host_dsa_key
new file mode 100644
index 0000000000..51ab6fbd88
--- /dev/null
+++ b/lib/ssh/test/ssh_protocol_SUITE_data/ssh_host_dsa_key
@@ -0,0 +1,13 @@
+-----BEGIN DSA PRIVATE KEY-----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+-----END DSA PRIVATE KEY-----
+
diff --git a/lib/ssh/test/ssh_protocol_SUITE_data/ssh_host_dsa_key.pub b/lib/ssh/test/ssh_protocol_SUITE_data/ssh_host_dsa_key.pub
new file mode 100644
index 0000000000..4dbb1305b0
--- /dev/null
+++ b/lib/ssh/test/ssh_protocol_SUITE_data/ssh_host_dsa_key.pub
@@ -0,0 +1,11 @@
+---- BEGIN SSH2 PUBLIC KEY ----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+---- END SSH2 PUBLIC KEY ----
diff --git a/lib/ssh/test/ssh_protocol_SUITE_data/ssh_host_rsa_key b/lib/ssh/test/ssh_protocol_SUITE_data/ssh_host_rsa_key
new file mode 100644
index 0000000000..79968bdd7d
--- /dev/null
+++ b/lib/ssh/test/ssh_protocol_SUITE_data/ssh_host_rsa_key
@@ -0,0 +1,16 @@
+-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----
+
diff --git a/lib/ssh/test/ssh_protocol_SUITE_data/ssh_host_rsa_key.pub b/lib/ssh/test/ssh_protocol_SUITE_data/ssh_host_rsa_key.pub
new file mode 100644
index 0000000000..75d2025c71
--- /dev/null
+++ b/lib/ssh/test/ssh_protocol_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_trpt_test_lib.erl b/lib/ssh/test/ssh_trpt_test_lib.erl
new file mode 100644
index 0000000000..8623020a31
--- /dev/null
+++ b/lib/ssh/test/ssh_trpt_test_lib.erl
@@ -0,0 +1,691 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2004-2015. 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_trpt_test_lib).
+
+%%-compile(export_all).
+
+-export([exec/1, exec/2,
+ format_msg/1,
+ server_host_port/1
+ ]
+ ).
+
+-include_lib("common_test/include/ct.hrl").
+-include_lib("ssh/src/ssh.hrl"). % ?UINT32, ?BYTE, #ssh{} ...
+-include_lib("ssh/src/ssh_transport.hrl").
+-include_lib("ssh/src/ssh_auth.hrl").
+
+%%%----------------------------------------------------------------
+-record(s, {
+ socket,
+ listen_socket,
+ opts = [],
+ timeout = 5000, % ms
+ seen_hello = false,
+ enc = <<>>,
+ ssh = #ssh{}, % #ssh{}
+ own_kexinit,
+ peer_kexinit,
+ vars = dict:new(),
+ reply = [], % Some repy msgs are generated hidden in ssh_transport :[
+ prints = [],
+ return_value
+ }).
+
+-define(role(S), ((S#s.ssh)#ssh.role) ).
+
+
+server_host_port(S=#s{}) ->
+ {Host,Port} = ok(inet:sockname(S#s.listen_socket)),
+ {host(Host), Port}.
+
+
+%%% Options: {print_messages, false} true|detail
+%%% {print_seqnums,false} true
+%%% {print_ops,false} true
+
+exec(L) -> exec(L, #s{}).
+
+exec(L, S) when is_list(L) -> lists:foldl(fun exec/2, S, L);
+
+exec(Op, S0=#s{}) ->
+ S1 = init_op_traces(Op, S0),
+ try seqnum_trace(
+ op(Op, S1))
+ of
+ S = #s{} ->
+ print_traces(S),
+ {ok,S}
+ catch
+ {fail,Reason,Se} ->
+ report_trace('', Reason, Se),
+ {error,{Op,Reason,Se}};
+
+ throw:Term ->
+ report_trace(throw, Term, S1),
+ throw(Term);
+
+ error:Error ->
+ report_trace(error, Error, S1),
+ error(Error);
+
+ exit:Exit ->
+ report_trace(exit, Exit, S1),
+ exit(Exit)
+ end;
+exec(Op, {ok,S=#s{}}) -> exec(Op, S);
+exec(_, Error) -> Error.
+
+
+%%%---- Server ops
+op(listen, S) when ?role(S) == undefined -> op({listen,0}, S);
+
+op({listen,Port}, S) when ?role(S) == undefined ->
+ S#s{listen_socket = ok(gen_tcp:listen(Port, mangle_opts([]))),
+ ssh = (S#s.ssh)#ssh{role=server}
+ };
+
+op({accept,Opts}, S) when ?role(S) == server ->
+ {ok,Socket} = gen_tcp:accept(S#s.listen_socket, S#s.timeout),
+ {Host,_Port} = ok(inet:sockname(Socket)),
+ S#s{socket = Socket,
+ ssh = init_ssh(server,Socket,[{host,host(Host)}|Opts]),
+ return_value = ok};
+
+%%%---- Client ops
+op({connect,Host,Port,Opts}, S) when ?role(S) == undefined ->
+ Socket = ok(gen_tcp:connect(host(Host), Port, mangle_opts([]))),
+ S#s{socket = Socket,
+ ssh = init_ssh(client, Socket, [{host,host(Host)}|Opts]),
+ return_value = ok};
+
+%%%---- ops for both client and server
+op(close_socket, S) ->
+ catch tcp_gen:close(S#s.socket),
+ catch tcp_gen:close(S#s.listen_socket),
+ S#s{socket = undefined,
+ listen_socket = undefined,
+ return_value = ok};
+
+op({set_options,Opts}, S) ->
+ S#s{opts = Opts};
+
+op({send,X}, S) ->
+ send(S, instantiate(X,S));
+
+op(receive_hello, S0) when S0#s.seen_hello =/= true ->
+ case recv(S0) of
+ S1=#s{return_value={hello,_}} -> S1;
+ S1=#s{} -> op(receive_hello, receive_wait(S1))
+ end;
+
+op(receive_msg, S) when S#s.seen_hello == true ->
+ try recv(S)
+ catch
+ {tcp,Exc} -> S#s{return_value=Exc}
+ end;
+
+
+op({expect,timeout,E}, S0) ->
+ try op(E, S0)
+ of
+ S=#s{} -> fail({expected,timeout,S#s.return_value}, S)
+ catch
+ {receive_timeout,_} -> S0#s{return_value=timeout}
+ end;
+
+op({match,M,E}, S0) ->
+ {Val,S2} = op_val(E, S0),
+ case match(M, Val, S2) of
+ {true,S3} ->
+ opt(print_ops,S3,
+ fun(true) ->
+ case dict:fold(
+ fun(K,V,Acc) ->
+ case dict:find(K,S0#s.vars) of
+ error -> [{K,V}|Acc];
+ _ -> Acc
+ end
+ end, [], S3#s.vars)
+ of
+ [] -> {"Matches! No new bindings.",[]};
+ New ->
+ Width = lists:max([length(atom_to_list(K)) || {K,_} <- New]),
+ {lists:flatten(
+ ["Matches! New bindings:~n" |
+ [io_lib:format(" ~*s = ~p~n",[Width,K,V]) || {K,V}<-New]]),
+ []}
+ end
+ end);
+ false ->
+ fail({expected,M,Val},
+ opt(print_ops,S2,fun(true) -> {"nomatch!!~n",[]} end)
+ )
+ end;
+
+op({print,E}, S0) ->
+ {Val,S} = op_val(E, S0),
+ io:format("Result of ~p ~p =~n~s~n",[?role(S0),E,format_msg(Val)]),
+ S;
+
+op(print_state, S) ->
+ io:format("State(~p)=~n~s~n",[?role(S), format_msg(S)]),
+ S;
+
+op('$$', S) ->
+ %% For matching etc
+ S.
+
+
+op_val(E, S0) ->
+ case catch op(E, S0) of
+ {'EXIT',{function_clause,[{ssh_trpt_test_lib,op,[E,S0],_}|_]}} ->
+ {instantiate(E,S0), S0};
+ S=#s{} ->
+ {S#s.return_value, S}
+ end.
+
+
+fail(Reason, S) ->
+ throw({fail, Reason, S}).
+
+%%%----------------------------------------------------------------
+%% No optimizations :)
+
+match('$$', V, S) ->
+ match(S#s.return_value, V, S);
+
+match('_', _, S) ->
+ {true, S};
+
+match(P, V, S) when is_atom(P) ->
+ case atom_to_list(P) of
+ "$"++_ ->
+ %% Variable
+ case dict:find(P,S#s.vars) of
+ {ok,Val} -> match(Val, V, S);
+ error -> {true,S#s{vars = dict:store(P,V,S#s.vars)}}
+ end;
+ _ when P==V ->
+ {true,S};
+ _ ->
+ false
+ end;
+
+match(P, V, S) when P==V ->
+ {true, S};
+
+match(P, V, S) when is_tuple(P),
+ is_tuple(V) ->
+ match(tuple_to_list(P), tuple_to_list(V), S);
+
+match([Hp|Tp], [Hv|Tv], S0) ->
+ case match(Hp, Hv, S0) of
+ {true,S} -> match(Tp, Tv, S);
+ false -> false
+ end;
+
+match(_, _, _) ->
+ false.
+
+
+
+instantiate('$$', S) ->
+ S#s.return_value; % FIXME: What if $$ or $... in return_value?
+
+instantiate(A, S) when is_atom(A) ->
+ case atom_to_list(A) of
+ "$"++_ ->
+ %% Variable
+ case dict:find(A,S#s.vars) of
+ {ok,Val} -> Val; % FIXME: What if $$ or $... in Val?
+ error -> throw({unbound,A})
+ end;
+ _ ->
+ A
+ end;
+
+instantiate(T, S) when is_tuple(T) ->
+ list_to_tuple( instantiate(tuple_to_list(T),S) );
+
+instantiate([H|T], S) ->
+ [instantiate(H,S) | instantiate(T,S)];
+
+instantiate(X, _S) ->
+ X.
+
+%%%================================================================
+%%%
+init_ssh(Role, Socket, Options0) ->
+ Options = [{user_interaction,false}
+ | Options0],
+ ssh_connection_handler:init_ssh(Role,
+ {2,0},
+ lists:concat(["SSH-2.0-ErlangTestLib ",Role]),
+ Options, Socket).
+
+mangle_opts(Options) ->
+ SysOpts = [{reuseaddr, true},
+ {active, false},
+ {mode, binary}
+ ],
+ SysOpts ++ lists:foldl(fun({K,_},Opts) ->
+ lists:keydelete(K,1,Opts)
+ end, Options, SysOpts).
+
+host({0,0,0,0}) -> "localhost";
+host(H) -> H.
+
+%%%----------------------------------------------------------------
+send(S=#s{ssh=C}, hello) ->
+ Hello = case ?role(S) of
+ client -> C#ssh.c_version;
+ server -> C#ssh.s_version
+ end ++ "\r\n",
+ send(S, list_to_binary(Hello));
+
+send(S0, ssh_msg_kexinit) ->
+ {Msg, Bytes, C0} = ssh_transport:key_exchange_init_msg(S0#s.ssh),
+ S1 = opt(print_messages, S0,
+ fun(X) when X==true;X==detail -> {"Send~n~s~n",[format_msg(Msg)]} end),
+ S = case ?role(S1) of
+ server when is_record(S1#s.peer_kexinit, ssh_msg_kexinit) ->
+ {ok, C} =
+ ssh_transport:handle_kexinit_msg(S1#s.peer_kexinit, Msg, C0),
+ S1#s{peer_kexinit = used,
+ own_kexinit = used,
+ ssh = C};
+ _ ->
+ S1#s{ssh = C0,
+ own_kexinit = Msg}
+ end,
+ send_bytes(Bytes, S#s{return_value = Msg});
+
+send(S0, ssh_msg_kexdh_init) when ?role(S0) == client,
+ is_record(S0#s.peer_kexinit, ssh_msg_kexinit),
+ is_record(S0#s.own_kexinit, ssh_msg_kexinit) ->
+ {ok, NextKexMsgBin, C} =
+ ssh_transport:handle_kexinit_msg(S0#s.peer_kexinit, S0#s.own_kexinit, S0#s.ssh),
+
+ S = opt(print_messages, S0,
+ fun(X) when X==true;X==detail ->
+ #ssh{keyex_key = {{_Private, Public}, {_G, _P}}} = C,
+ Msg = #ssh_msg_kexdh_init{e = Public},
+ {"Send (reconstructed)~n~s~n",[format_msg(Msg)]}
+ end),
+
+ send_bytes(NextKexMsgBin, S#s{ssh = C,
+ peer_kexinit = used,
+ own_kexinit = used});
+
+send(S0, ssh_msg_kexdh_reply) ->
+ Bytes = proplists:get_value(ssh_msg_kexdh_reply, S0#s.reply),
+ S = opt(print_messages, S0,
+ fun(X) when X==true;X==detail ->
+ {{_Private, Public}, _} = (S0#s.ssh)#ssh.keyex_key,
+ Msg = #ssh_msg_kexdh_reply{public_host_key = 'Key',
+ f = Public,
+ h_sig = 'H_SIG'
+ },
+ {"Send (reconstructed)~n~s~n",[format_msg(Msg)]}
+ end),
+ send_bytes(Bytes, S#s{return_value = Bytes});
+
+send(S0, Line) when is_binary(Line) ->
+ S = opt(print_messages, S0,
+ fun(X) when X==true;X==detail -> {"Send line~n~p~n",[Line]} end),
+ send_bytes(Line, S#s{return_value = Line});
+
+%%% Msg = #ssh_msg_*{}
+send(S0, Msg) when is_tuple(Msg) ->
+ S = opt(print_messages, S0,
+ fun(X) when X==true;X==detail -> {"Send~n~s~n",[format_msg(Msg)]} end),
+ {Packet, C} = ssh_transport:ssh_packet(Msg, S#s.ssh),
+ send_bytes(Packet, S#s{ssh = C, %%inc_send_seq_num(C),
+ return_value = Msg}).
+
+send_bytes(B, S0) ->
+ S = opt(print_messages, S0, fun(detail) -> {"Send bytes~n~p~n",[B]} end),
+ ok(gen_tcp:send(S#s.socket, B)),
+ S.
+
+%%%----------------------------------------------------------------
+recv(S0 = #s{}) ->
+ S1 = receive_poll(S0),
+ case S1#s.seen_hello of
+ {more,Seen} ->
+ %% Has received parts of a line. Has not seen a complete hello.
+ try_find_crlf(Seen, S1);
+ false ->
+ %% Must see hello before binary messages
+ try_find_crlf(<<>>, S1);
+ true ->
+ %% Has seen hello, therefore no more crlf-messages are alowed.
+ S = receive_binary_msg(S1),
+ case M=S#s.return_value of
+ #ssh_msg_kexinit{} when ?role(S) == server,
+ S#s.own_kexinit =/= undefined ->
+ {ok, C} =
+ ssh_transport:handle_kexinit_msg(M, S#s.own_kexinit, S#s.ssh),
+ S#s{peer_kexinit = used,
+ own_kexinit = used,
+ ssh = C};
+ #ssh_msg_kexinit{} ->
+ S#s{peer_kexinit = M};
+ #ssh_msg_kexdh_init{} -> % Always the server
+ {ok, Reply, C} = ssh_transport:handle_kexdh_init(M, S#s.ssh),
+ S#s{ssh = C,
+ reply = [{ssh_msg_kexdh_reply,Reply} | S#s.reply]
+ };
+ #ssh_msg_kexdh_reply{} ->
+ {ok, _NewKeys, C} = ssh_transport:handle_kexdh_reply(M, S#s.ssh),
+ S#s{ssh=C#ssh{send_sequence=S#s.ssh#ssh.send_sequence}}; % Back the number
+ #ssh_msg_newkeys{} ->
+ {ok, C} = ssh_transport:handle_new_keys(M, S#s.ssh),
+ S#s{ssh=C};
+ _ ->
+ S
+ end
+ end.
+
+%%%================================================================
+try_find_crlf(Seen, S0) ->
+ case erlang:decode_packet(line,S0#s.enc,[]) of
+ {more,_} ->
+ Line = <<Seen/binary,(S0#s.enc)/binary>>,
+ S0#s{seen_hello = {more,Line},
+ enc = <<>>, % didn't find a complete line
+ % -> no more characters to test
+ return_value = {more,Line}
+ };
+ {ok,Used,Rest} ->
+ Line = <<Seen/binary,Used/binary>>,
+ case handle_hello(Line, S0) of
+ false ->
+ S = opt(print_messages, S0,
+ fun(X) when X==true;X==detail -> {"Recv info~n~p~n",[Line]} end),
+ S#s{seen_hello = false,
+ enc = Rest,
+ return_value = {info,Line}};
+ S1=#s{} ->
+ S = opt(print_messages, S1,
+ fun(X) when X==true;X==detail -> {"Recv hello~n~p~n",[Line]} end),
+ S#s{seen_hello = true,
+ enc = Rest,
+ return_value = {hello,Line}}
+ end
+ end.
+
+
+handle_hello(Bin, S=#s{ssh=C}) ->
+ case {ssh_transport:handle_hello_version(binary_to_list(Bin)),
+ ?role(S)}
+ of
+ {{undefined,_}, _} -> false;
+ {{Vp,Vs}, client} -> S#s{ssh = C#ssh{s_vsn=Vp, s_version=Vs}};
+ {{Vp,Vs}, server} -> S#s{ssh = C#ssh{c_vsn=Vp, c_version=Vs}}
+ end.
+
+receive_binary_msg(S0=#s{ssh=C0=#ssh{decrypt_block_size = BlockSize,
+ recv_mac_size = MacSize
+ }
+ }) ->
+ case size(S0#s.enc) >= max(8,BlockSize) of
+ false ->
+ %% Need more bytes to decode the packet_length field
+ Remaining = max(8,BlockSize) - size(S0#s.enc),
+ receive_binary_msg( receive_wait(Remaining, S0) );
+ true ->
+ %% Has enough bytes to decode the packet_length field
+ {_, <<?UINT32(PacketLen), _/binary>>, _} =
+ ssh_transport:decrypt_blocks(S0#s.enc, BlockSize, C0), % FIXME: BlockSize should be at least 4
+
+ %% FIXME: Check that ((4+PacketLen) rem BlockSize) == 0 ?
+
+ S1 = if
+ PacketLen > ?SSH_MAX_PACKET_SIZE ->
+ fail({too_large_message,PacketLen},S0); % FIXME: disconnect
+
+ ((4+PacketLen) rem BlockSize) =/= 0 ->
+ fail(bad_packet_length_modulo, S0); % FIXME: disconnect
+
+ size(S0#s.enc) >= (4 + PacketLen + MacSize) ->
+ %% has the whole packet
+ S0;
+
+ true ->
+ %% need more bytes to get have the whole packet
+ Remaining = (4 + PacketLen + MacSize) - size(S0#s.enc),
+ receive_wait(Remaining, S0)
+ end,
+
+ %% Decrypt all, including the packet_length part (re-use the initial #ssh{})
+ {C1, SshPacket = <<?UINT32(_),?BYTE(PadLen),Tail/binary>>, EncRest} =
+ ssh_transport:decrypt_blocks(S1#s.enc, PacketLen+4, C0),
+
+ PayloadLen = PacketLen - 1 - PadLen,
+ <<CompressedPayload:PayloadLen/binary, _Padding:PadLen/binary>> = Tail,
+
+ {C2, Payload} = ssh_transport:decompress(C1, CompressedPayload),
+
+ <<Mac:MacSize/binary, Rest/binary>> = EncRest,
+
+ case {ssh_transport:is_valid_mac(Mac, SshPacket, C2),
+ catch ssh_message:decode(Payload)}
+ of
+ {false, _} -> fail(bad_mac,S1);
+ {_, {'EXIT',_}} -> fail(decode_failed,S1);
+
+ {true, Msg} ->
+ C3 = case Msg of
+ #ssh_msg_kexinit{} ->
+ ssh_transport:key_init(opposite_role(C2), C2, Payload);
+ _ ->
+ C2
+ end,
+ S2 = opt(print_messages, S1,
+ fun(X) when X==true;X==detail -> {"Recv~n~s~n",[format_msg(Msg)]} end),
+ S3 = opt(print_messages, S2,
+ fun(detail) -> {"decrypted bytes ~p~n",[SshPacket]} end),
+ S3#s{ssh = inc_recv_seq_num(C3),
+ enc = Rest,
+ return_value = Msg
+ }
+ end
+ end.
+
+
+receive_poll(S=#s{socket=Sock}) ->
+ inet:setopts(Sock, [{active,once}]),
+ receive
+ {tcp,Sock,Data} ->
+ receive_poll( S#s{enc = <<(S#s.enc)/binary,Data/binary>>} );
+ {tcp_closed,Sock} ->
+ throw({tcp,tcp_closed});
+ {tcp_error, Sock, Reason} ->
+ throw({tcp,{tcp_error,Reason}})
+ after 0 ->
+ S
+ end.
+
+receive_wait(S=#s{socket=Sock,
+ timeout=Timeout}) ->
+ inet:setopts(Sock, [{active,once}]),
+ receive
+ {tcp,Sock,Data} ->
+ S#s{enc = <<(S#s.enc)/binary,Data/binary>>};
+ {tcp_closed,Sock} ->
+ throw({tcp,tcp_closed});
+ {tcp_error, Sock, Reason} ->
+ throw({tcp,{tcp_error,Reason}})
+ after Timeout ->
+ fail(receive_timeout,S)
+ end.
+
+receive_wait(N, S=#s{socket=Sock,
+ timeout=Timeout,
+ enc=Enc0}) when N>0 ->
+ inet:setopts(Sock, [{active,once}]),
+ receive
+ {tcp,Sock,Data} ->
+ receive_wait(N-size(Data), S#s{enc = <<Enc0/binary,Data/binary>>});
+ {tcp_closed,Sock} ->
+ throw({tcp,tcp_closed});
+ {tcp_error, Sock, Reason} ->
+ throw({tcp,{tcp_error,Reason}})
+ after Timeout ->
+ fail(receive_timeout, S)
+ end;
+receive_wait(_N, S) ->
+ S.
+
+%% random_padding_len(PaddingLen1, ChunkSize) ->
+%% MaxAdditionalRandomPaddingLen = % max 255 bytes padding totaƶ
+%% (255 - PaddingLen1) - ((255 - PaddingLen1) rem ChunkSize),
+%% AddLen0 = crypto:rand_uniform(0,MaxAdditionalRandomPaddingLen),
+%% AddLen0 - (AddLen0 rem ChunkSize). % preserve the blocking
+
+inc_recv_seq_num(C=#ssh{recv_sequence=N}) -> C#ssh{recv_sequence=(N+1) band 16#ffffffff}.
+%%%inc_send_seq_num(C=#ssh{send_sequence=N}) -> C#ssh{send_sequence=(N+1) band 16#ffffffff}.
+
+opposite_role(#ssh{role=R}) -> opposite_role(R);
+opposite_role(client) -> server;
+opposite_role(server) -> client.
+
+ok(ok) -> ok;
+ok({ok,R}) -> R;
+ok({error,E}) -> erlang:error(E).
+
+
+%%%================================================================
+%%%
+%%% Formating of records
+%%%
+
+format_msg(M) -> format_msg(M, 0).
+
+format_msg(M, I0) ->
+ case fields(M) of
+ undefined -> io_lib:format('~p',[M]);
+ Fields ->
+ [Name|Args] = tuple_to_list(M),
+ Head = io_lib:format('#~p{',[Name]),
+ I = lists:flatlength(Head)+I0,
+ NL = io_lib:format('~n~*c',[I,$ ]),
+ Sep = io_lib:format(',~n~*c',[I,$ ]),
+ Tail = [begin
+ S0 = io_lib:format('~p = ',[F]),
+ I1 = I + lists:flatlength(S0),
+ [S0,format_msg(A,I1)]
+ end
+ || {F,A} <- lists:zip(Fields,Args)],
+ [[Head|string:join(Tail,Sep)],NL,"}"]
+ end.
+
+fields(M) ->
+ case M of
+ #ssh_msg_debug{} -> record_info(fields, ssh_msg_debug);
+ #ssh_msg_disconnect{} -> record_info(fields, ssh_msg_disconnect);
+ #ssh_msg_ignore{} -> record_info(fields, ssh_msg_ignore);
+ #ssh_msg_kex_dh_gex_group{} -> record_info(fields, ssh_msg_kex_dh_gex_group);
+ #ssh_msg_kex_dh_gex_init{} -> record_info(fields, ssh_msg_kex_dh_gex_init);
+ #ssh_msg_kex_dh_gex_reply{} -> record_info(fields, ssh_msg_kex_dh_gex_reply);
+ #ssh_msg_kex_dh_gex_request{} -> record_info(fields, ssh_msg_kex_dh_gex_request);
+ #ssh_msg_kex_dh_gex_request_old{} -> record_info(fields, ssh_msg_kex_dh_gex_request_old);
+ #ssh_msg_kexdh_init{} -> record_info(fields, ssh_msg_kexdh_init);
+ #ssh_msg_kexdh_reply{} -> record_info(fields, ssh_msg_kexdh_reply);
+ #ssh_msg_kexinit{} -> record_info(fields, ssh_msg_kexinit);
+ #ssh_msg_newkeys{} -> record_info(fields, ssh_msg_newkeys);
+ #ssh_msg_service_accept{} -> record_info(fields, ssh_msg_service_accept);
+ #ssh_msg_service_request{} -> record_info(fields, ssh_msg_service_request);
+ #ssh_msg_unimplemented{} -> record_info(fields, ssh_msg_unimplemented);
+ #ssh_msg_userauth_request{} -> record_info(fields, ssh_msg_userauth_request);
+ #ssh_msg_userauth_failure{} -> record_info(fields, ssh_msg_userauth_failure);
+ #ssh_msg_userauth_success{} -> record_info(fields, ssh_msg_userauth_success);
+ #ssh_msg_userauth_banner{} -> record_info(fields, ssh_msg_userauth_banner);
+ #ssh_msg_userauth_passwd_changereq{} -> record_info(fields, ssh_msg_userauth_passwd_changereq);
+ #ssh_msg_userauth_pk_ok{} -> record_info(fields, ssh_msg_userauth_pk_ok);
+ #ssh_msg_userauth_info_request{} -> record_info(fields, ssh_msg_userauth_info_request);
+ #ssh_msg_userauth_info_response{} -> record_info(fields, ssh_msg_userauth_info_response);
+ #s{} -> record_info(fields, s);
+ #ssh{} -> record_info(fields, ssh);
+ #alg{} -> record_info(fields, alg);
+ _ -> undefined
+ end.
+
+%%%================================================================
+%%%
+%%% Trace handling
+%%%
+
+init_op_traces(Op, S0) ->
+ opt(print_ops, S0#s{prints=[]},
+ fun(true) ->
+ case ?role(S0) of
+ undefined -> {"-- ~p~n",[Op]};
+ Role -> {"-- ~p ~p~n",[Role,Op]}
+ end
+ end
+ ).
+
+report_trace(Class, Term, S) ->
+ print_traces(
+ opt(print_ops, S,
+ fun(true) -> {"~s ~p",[Class,Term]} end)
+ ).
+
+seqnum_trace(S) ->
+ opt(print_seqnums, S,
+ fun(true) when S#s.ssh#ssh.send_sequence =/= S#s.ssh#ssh.send_sequence,
+ S#s.ssh#ssh.recv_sequence =/= S#s.ssh#ssh.recv_sequence ->
+ {"~p seq num: send ~p->~p, recv ~p->~p~n",
+ [?role(S),
+ S#s.ssh#ssh.send_sequence, S#s.ssh#ssh.send_sequence,
+ S#s.ssh#ssh.recv_sequence, S#s.ssh#ssh.recv_sequence
+ ]};
+ (true) when S#s.ssh#ssh.send_sequence =/= S#s.ssh#ssh.send_sequence ->
+ {"~p seq num: send ~p->~p~n",
+ [?role(S),
+ S#s.ssh#ssh.send_sequence, S#s.ssh#ssh.send_sequence]};
+ (true) when S#s.ssh#ssh.recv_sequence =/= S#s.ssh#ssh.recv_sequence ->
+ {"~p seq num: recv ~p->~p~n",
+ [?role(S),
+ S#s.ssh#ssh.recv_sequence, S#s.ssh#ssh.recv_sequence]}
+ end).
+
+print_traces(S) when S#s.prints == [] -> S;
+print_traces(S) ->
+ ct:log("~s",
+ [lists:foldl(fun({Fmt,Args}, Acc) ->
+ [io_lib:format(Fmt,Args) | Acc]
+ end, "", S#s.prints)]
+ ).
+
+opt(Flag, S, Fun) when is_function(Fun,1) ->
+ try Fun(proplists:get_value(Flag,S#s.opts))
+ of P={Fmt,Args} when is_list(Fmt), is_list(Args) ->
+ save_prints(P, S)
+ catch _:_ ->
+ S
+ end.
+
+save_prints({Fmt,Args}, S) ->
+ S#s{prints = [{Fmt,Args}|S#s.prints]}.