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-rw-r--r--lib/ssh/src/ssh_transport.erl18
-rw-r--r--lib/ssh/test/ssh_protocol_SUITE.erl122
2 files changed, 133 insertions, 7 deletions
diff --git a/lib/ssh/src/ssh_transport.erl b/lib/ssh/src/ssh_transport.erl
index 25c64a4f25..bd1cb4bd22 100644
--- a/lib/ssh/src/ssh_transport.erl
+++ b/lib/ssh/src/ssh_transport.erl
@@ -724,9 +724,21 @@ kex_ext_info(Role, Opts) ->
end.
ext_info_message(#ssh{role=client,
- send_ext_info=true} = Ssh0) ->
- %% FIXME: no extensions implemented
- {ok, "", Ssh0};
+ send_ext_info=true,
+ opts=Opts} = Ssh0) ->
+ %% Since no extension sent by the client is implemented, we add a fake one
+ %% to be able to test the framework.
+ %% Remove this when there is one and update ssh_protocol_SUITE whare it is used.
+ case proplists:get_value(ext_info_client, ?GET_OPT(tstflg,Opts)) of
+ true ->
+ Msg = #ssh_msg_ext_info{nr_extensions = 1,
+ data = [{"[email protected]", "Testing,PleaseIgnore"}]
+ },
+ {SshPacket, Ssh} = ssh_packet(Msg, Ssh0),
+ {ok, SshPacket, Ssh};
+ _ ->
+ {ok, "", Ssh0}
+ end;
ext_info_message(#ssh{role=server,
send_ext_info=true} = Ssh0) ->
diff --git a/lib/ssh/test/ssh_protocol_SUITE.erl b/lib/ssh/test/ssh_protocol_SUITE.erl
index 5a6e0638a7..0385e30ad1 100644
--- a/lib/ssh/test/ssh_protocol_SUITE.erl
+++ b/lib/ssh/test/ssh_protocol_SUITE.erl
@@ -59,7 +59,8 @@ all() ->
{group,service_requests},
{group,authentication},
{group,packet_size_error},
- {group,field_size_error}
+ {group,field_size_error},
+ {group,ext_info}
].
groups() ->
@@ -90,7 +91,12 @@ groups() ->
bad_service_name_then_correct
]},
{authentication, [], [client_handles_keyboard_interactive_0_pwds
- ]}
+ ]},
+ {ext_info, [], [no_ext_info_s1,
+ no_ext_info_s2,
+ ext_info_s,
+ ext_info_c
+ ]}
].
@@ -644,7 +650,113 @@ client_info_line(_Config) ->
ok
end.
+%%%--------------------------------------------------------------------
+%%% The server does not send the extension because
+%%% the client does not tell the server to send it
+no_ext_info_s1(Config) ->
+ %% Start the dameon
+ Server = {Pid,_,_} = ssh_test_lib:daemon([{send_ext_info,true},
+ {system_dir, system_dir(Config)}]),
+ {ok,AfterKexState} = connect_and_kex([{server,Server}|Config]),
+ {ok,_} =
+ ssh_trpt_test_lib:exec(
+ [{send, #ssh_msg_service_request{name = "ssh-userauth"}},
+ {match, #ssh_msg_service_accept{name = "ssh-userauth"}, receive_msg}
+ ], AfterKexState),
+ ssh:stop_daemon(Pid).
+
+%%%--------------------------------------------------------------------
+%%% The server does not send the extension because
+%%% the server is not configured to send it
+no_ext_info_s2(Config) ->
+ %% Start the dameon
+ Server = {Pid,_,_} = ssh_test_lib:daemon([{send_ext_info,false},
+ {system_dir, system_dir(Config)}]),
+ {ok,AfterKexState} = connect_and_kex([{extra_options,[{recv_ext_info,true}]},
+ {server,Server}
+ | Config]),
+ {ok,_} =
+ ssh_trpt_test_lib:exec(
+ [{send, #ssh_msg_service_request{name = "ssh-userauth"}},
+ {match, #ssh_msg_service_accept{name = "ssh-userauth"}, receive_msg}
+ ], AfterKexState),
+ ssh:stop_daemon(Pid).
+
+%%%--------------------------------------------------------------------
+%%% The server sends the extension
+ext_info_s(Config) ->
+ %% Start the dameon
+ Server = {Pid,_,_} = ssh_test_lib:daemon([{send_ext_info,true},
+ {system_dir, system_dir(Config)}]),
+ {ok,AfterKexState} = connect_and_kex([{extra_options,[{recv_ext_info,true}]},
+ {server,Server}
+ | Config]),
+ {ok,_} =
+ ssh_trpt_test_lib:exec(
+ [{match, #ssh_msg_ext_info{_='_'}, receive_msg}
+ ],
+ AfterKexState),
+ ssh:stop_daemon(Pid).
+
+%%%--------------------------------------------------------------------
+%%% The client sends the extension
+ext_info_c(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),
+
+ Parent = self(),
+ %% Start a process handling one connection on the server side:
+ Pid =
+ spawn_link(
+ fun() ->
+ Result =
+ ssh_trpt_test_lib:exec(
+ [{set_options, [print_ops, print_messages]},
+ {accept, [{system_dir, system_dir(Config)},
+ {user_dir, user_dir(Config)},
+ {recv_ext_info, true}
+ ]},
+ 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_ext_info{_='_'}, receive_msg},
+
+ close_socket,
+ print_state
+ ],
+ InitialState),
+ Parent ! {result,self(),Result}
+ end),
+
+ %% connect to it with a regular Erlang SSH client
+ %% (expect error due to the close_socket in daemon):
+ {error,_} = std_connect(HostPort, Config,
+ [{preferred_algorithms,[{kex,[?DEFAULT_KEX]},
+ {cipher,?DEFAULT_CIPHERS}
+ ]},
+ {tstflg, [{ext_info_client,true}]},
+ {send_ext_info, true}
+ ]
+ ),
+ %% Check that the daemon got expected result:
+ receive
+ {result, Pid, {ok,_}} -> ok;
+ {result, Pid, Error} -> ct:fail("Error: ~p",[Error])
+ end.
+
%%%================================================================
%%%==== Internal functions ========================================
%%%================================================================
@@ -751,10 +863,12 @@ connect_and_kex(Config, InitialState) ->
[{preferred_algorithms,[{kex,[?DEFAULT_KEX]},
{cipher,?DEFAULT_CIPHERS}
]},
- {silently_accept_hosts, true},
+ {silently_accept_hosts, true},
{recv_ext_info, false},
{user_dir, user_dir(Config)},
- {user_interaction, false}]},
+ {user_interaction, false}
+ | proplists:get_value(extra_options,Config,[])
+ ]},
receive_hello,
{send, hello},
{send, ssh_msg_kexinit},