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-rw-r--r--lib/ssh/src/ssh.erl321
-rw-r--r--lib/ssh/src/ssh.hrl26
-rw-r--r--lib/ssh/src/ssh_acceptor.erl107
-rw-r--r--lib/ssh/src/ssh_connection_handler.erl10
-rw-r--r--lib/ssh/src/ssh_options.erl61
-rw-r--r--lib/ssh/src/ssh_sftp.erl9
-rw-r--r--lib/ssh/src/ssh_sftpd.erl26
-rw-r--r--lib/ssh/src/ssh_system_sup.erl2
-rw-r--r--lib/ssh/src/ssh_transport.erl43
-rw-r--r--lib/ssh/test/ssh_sftpd_SUITE.erl6
-rw-r--r--lib/ssh/test/ssh_sftpd_erlclient_SUITE.erl2
-rw-r--r--lib/ssh/test/ssh_sup_SUITE.erl111
-rw-r--r--lib/ssh/test/ssh_test_lib.erl3
13 files changed, 409 insertions, 318 deletions
diff --git a/lib/ssh/src/ssh.erl b/lib/ssh/src/ssh.erl
index 369a00ac40..ff424b738c 100644
--- a/lib/ssh/src/ssh.erl
+++ b/lib/ssh/src/ssh.erl
@@ -132,13 +132,12 @@ connect(Host, Port, UserOptions, Timeout) when is_integer(Port),
SocketOpts = [{active,false} | ?GET_OPT(socket_options,Options)],
try Transport:connect(Host, Port, SocketOpts, ConnectionTimeout) of
{ok, Socket} ->
- Opts = ?PUT_INTERNAL_OPT([{user_pid,self()}, {host,Host}], Options),
+ Opts = ?PUT_INTERNAL_OPT([{user_pid,self()}, {host,fmt_host(Host)}], Options),
ssh_connection_handler:start_connection(client, Socket, Opts, Timeout);
{error, Reason} ->
{error, Reason}
catch
exit:{function_clause, _F} ->
- io:format('function_clause ~p~n',[_F]),
{error, {options, {transport, TransportOpts}}};
exit:badarg ->
{error, {options, {socket_options, SocketOpts}}}
@@ -183,16 +182,86 @@ daemon(Port) ->
daemon(Port, []).
-daemon(Port, UserOptions) when is_integer(Port), Port >= 0 ->
- daemon(any, Port, UserOptions);
-
daemon(Socket, UserOptions) when is_port(Socket) ->
- daemon(socket, Socket, UserOptions).
+ try
+ #{} = Options = ssh_options:handle_options(server, UserOptions),
+ case valid_socket_to_use(Socket, ?GET_OPT(transport,Options)) of
+ ok ->
+ {ok, {IP,Port}} = inet:sockname(Socket),
+ finalize_start(fmt_host(IP), Port, ?GET_OPT(profile, Options),
+ ?PUT_INTERNAL_OPT({connected_socket, Socket}, Options),
+ fun(Opts, DefaultResult) ->
+ try ssh_acceptor:handle_established_connection(
+ ?GET_INTERNAL_OPT(address, Opts),
+ ?GET_INTERNAL_OPT(port, Opts),
+ Opts,
+ Socket)
+ of
+ {error,Error} ->
+ {error,Error};
+ _ ->
+ DefaultResult
+ catch
+ C:R ->
+ {error,{could_not_start_connection,{C,R}}}
+ end
+ end);
+ {error,SockError} ->
+ {error,SockError}
+ end
+ catch
+ throw:bad_fd ->
+ {error,bad_fd};
+ throw:bad_socket ->
+ {error,bad_socket};
+ error:{badmatch,{error,Error}} ->
+ {error,Error};
+ error:Error ->
+ {error,Error};
+ _C:_E ->
+ {error,{cannot_start_daemon,_C,_E}}
+ end;
+daemon(Port, UserOptions) when 0 =< Port, Port =< 65535 ->
+ daemon(any, Port, UserOptions).
+
+
+daemon(Host0, Port0, UserOptions0) when 0 =< Port0, Port0 =< 65535 ->
+ try
+ {Host1, UserOptions} = handle_daemon_args(Host0, UserOptions0),
+ #{} = Options0 = ssh_options:handle_options(server, UserOptions),
+
+ {{Host,Port}, ListenSocket} =
+ open_listen_socket(Host1, Port0, Options0),
+
+ %% Now Host,Port is what to use for the supervisor to register its name,
+ %% and ListenSocket is for listening on connections. But it is still owned
+ %% by self()...
+
+ finalize_start(fmt_host(Host), Port, ?GET_OPT(profile, Options0),
+ ?PUT_INTERNAL_OPT({lsocket,{ListenSocket,self()}}, Options0),
+ fun(Opts, Result) ->
+ {_, Callback, _} = ?GET_OPT(transport, Opts),
+ receive
+ {request_control, ListenSocket, ReqPid} ->
+ ok = Callback:controlling_process(ListenSocket, ReqPid),
+ ReqPid ! {its_yours,ListenSocket},
+ Result
+ end
+ end)
+ catch
+ throw:bad_fd ->
+ {error,bad_fd};
+ throw:bad_socket ->
+ {error,bad_socket};
+ error:{badmatch,{error,Error}} ->
+ {error,Error};
+ error:Error ->
+ {error,Error};
+ _C:_E ->
+ {error,{cannot_start_daemon,_C,_E}}
+ end.
-daemon(Host0, Port, UserOptions0) ->
- {Host, UserOptions} = handle_daemon_args(Host0, UserOptions0),
- start_daemon(Host, Port, ssh_options:handle_options(server, UserOptions)).
%%--------------------------------------------------------------------
-spec daemon_info(daemon_ref()) -> ok_error( [{atom(), term()}] ).
@@ -292,35 +361,62 @@ default_algorithms() ->
%%--------------------------------------------------------------------
%%% Internal functions
%%--------------------------------------------------------------------
-handle_daemon_args(Host, UserOptions0) ->
- case Host of
- socket ->
- {Host, UserOptions0};
- any ->
- {ok, Host0} = inet:gethostname(),
- Inet = proplists:get_value(inet, UserOptions0, inet),
- {Host0, [Inet | UserOptions0]};
- {_,_,_,_} ->
- {Host, [inet, {ip,Host} | UserOptions0]};
- {_,_,_,_,_,_,_,_} ->
- {Host, [inet6, {ip,Host} | UserOptions0]};
- _ ->
- error(badarg)
- end.
+handle_daemon_args(HostAddr, Opts) ->
+ IP = proplists:get_value(ip, Opts),
+ IPh = case inet:parse_strict_address(HostAddr) of
+ {ok, IPtuple} -> IPtuple;
+ {error, einval} when is_tuple(HostAddr),
+ size(HostAddr)==4 ; size(HostAddr)==6 -> HostAddr;
+ _ -> undefined
+ end,
+ handle_daemon_args(HostAddr, IPh, IP, Opts).
+
+
+%% HostAddr is 'any'
+handle_daemon_args(any, undefined, undefined, Opts) -> {any, Opts};
+handle_daemon_args(any, undefined, IP, Opts) -> {IP, Opts};
+
+%% HostAddr is 'loopback' or "localhost"
+handle_daemon_args(loopback, undefined, {127,_,_,_}=IP, Opts) -> {IP, Opts};
+handle_daemon_args(loopback, undefined, {0,0,0,0,0,0,0,1}=IP, Opts) -> {IP, Opts};
+handle_daemon_args(loopback, undefined, undefined, Opts) ->
+ IP = case proplists:get_value(inet,Opts) of
+ true -> {127,0,0,1};
+ inet -> {127,0,0,1};
+ inet6 -> {0,0,0,0,0,0,0,1};
+ _ -> case proplists:get_value(inet6,Opts) of
+ true -> {0,0,0,0,0,0,0,1};
+ _ -> {127,0,0,1} % default if no 'inet' nor 'inet6'
+ end
+ end,
+ {IP, [{ip,IP}|Opts]};
+handle_daemon_args("localhost", IPh, IP, Opts) ->
+ handle_daemon_args(loopback, IPh, IP, Opts);
+
+%% HostAddr is ip and no ip-option
+handle_daemon_args(_, IP, undefined, Opts) when is_tuple(IP) -> {IP, [{ip,IP}|Opts]};
+
+%% HostAddr and ip-option are equal
+handle_daemon_args(_, IP, IP, Opts) when is_tuple(IP) -> {IP, Opts};
+
+%% HostAddr is ip, but ip-option is different!
+handle_daemon_args(_, IPh, IPo, _) when is_tuple(IPh), is_tuple(IPo) -> error({eoption,{ip,IPo}});
+
+%% Something else. Whatever it is, it is wrong.
+handle_daemon_args(_, _, _, _) -> error(badarg).
%%%----------------------------------------------------------------
valid_socket_to_use(Socket, {tcp,_,_}) ->
%% Is this tcp-socket a valid socket?
- case {is_tcp_socket(Socket),
- {ok,[{active,false}]} == inet:getopts(Socket, [active])
- }
+ try {is_tcp_socket(Socket),
+ {ok,[{active,false}]} == inet:getopts(Socket, [active])
+ }
of
- {true, true} ->
- ok;
- {true, false} ->
- {error, not_passive_mode};
- _ ->
- {error, not_tcp_socket}
+ {true, true} -> ok;
+ {true, false} -> {error, not_passive_mode};
+ _ -> {error, not_tcp_socket}
+ catch
+ _:_ -> {error, bad_socket}
end;
valid_socket_to_use(_, {L4,_,_}) ->
@@ -334,158 +430,51 @@ is_tcp_socket(Socket) ->
end.
%%%----------------------------------------------------------------
-start_daemon(_, _, {error,Error}) ->
- {error,Error};
-
-start_daemon(socket, Socket, Options) ->
- case valid_socket_to_use(Socket, ?GET_OPT(transport,Options)) of
- ok ->
- try
- do_start_daemon(Socket, Options)
- catch
- throw:bad_fd -> {error,bad_fd};
- throw:bad_socket -> {error,bad_socket};
- _C:_E -> {error,{cannot_start_daemon,_C,_E}}
- end;
- {error,SockError} ->
- {error,SockError}
- end;
-
-start_daemon(Host, Port, Options) ->
- try
- do_start_daemon(Host, Port, Options)
- catch
- throw:bad_fd -> {error,bad_fd};
- throw:bad_socket -> {error,bad_socket};
- _C:_E -> {error,{cannot_start_daemon,_C,_E}}
- end.
-
-
-do_start_daemon(Socket, Options) ->
- {ok, {IP,Port}} =
- try {ok,_} = inet:sockname(Socket)
- catch
- _:_ -> throw(bad_socket)
- end,
- Host = fmt_host(IP),
- Opts = ?PUT_INTERNAL_OPT([{asocket, Socket},
- {asock_owner,self()},
- {address, Host},
- {port, Port},
- {role, server}], Options),
-
- Profile = ?GET_OPT(profile, Options),
- case ssh_system_sup:system_supervisor(Host, Port, Profile) of
- undefined ->
- try sshd_sup:start_child(Opts) of
- {error, {already_started, _}} ->
- {error, eaddrinuse};
- Result = {ok,_} ->
- call_ssh_acceptor_handle_connection(Host, Port, Opts, Socket, Result);
- Result = {error, _} ->
- Result
- catch
- exit:{noproc, _} ->
- {error, ssh_not_started}
- end;
- Sup ->
- AccPid = ssh_system_sup:acceptor_supervisor(Sup),
- case ssh_acceptor_sup:start_child(AccPid, Opts) of
- {error, {already_started, _}} ->
- {error, eaddrinuse};
- {ok, _} ->
- call_ssh_acceptor_handle_connection(Host, Port, Opts, Socket, {ok,Sup});
- Other ->
- Other
- end
+open_listen_socket(Host0, Port0, Options0) ->
+ case ?GET_SOCKET_OPT(fd, Options0) of
+ undefined ->
+ {ok,LSock} = ssh_acceptor:listen(Port0, Options0),
+ {ok,{_,LPort}} = inet:sockname(LSock),
+ {{Host0,LPort}, LSock};
+
+ Fd when is_integer(Fd) ->
+ %% Do gen_tcp:listen with the option {fd,Fd}:
+ {ok,LSock} = ssh_acceptor:listen(0, Options0),
+ {ok,{LHost,LPort}} = inet:sockname(LSock),
+ {{LHost,LPort}, LSock}
end.
-do_start_daemon(Host0, Port0, Options0) ->
- {Host,Port1} =
- try
- case ?GET_SOCKET_OPT(fd, Options0) of
- undefined ->
- {Host0,Port0};
- Fd when Port0==0 ->
- find_hostport(Fd)
- end
- catch
- _:_ -> throw(bad_fd)
- end,
- {Port, WaitRequestControl, Options1} =
- case Port1 of
- 0 -> %% Allocate the socket here to get the port number...
- {ok,LSock} = ssh_acceptor:callback_listen(0, Options0),
- {ok,{_,LPort}} = inet:sockname(LSock),
- {LPort,
- LSock,
- ?PUT_INTERNAL_OPT({lsocket,{LSock,self()}}, Options0)
- };
- _ ->
- {Port1, false, Options0}
- end,
+%%%----------------------------------------------------------------
+finalize_start(Host, Port, Profile, Options0, F) ->
Options = ?PUT_INTERNAL_OPT([{address, Host},
{port, Port},
- {role, server}], Options1),
- Profile = ?GET_OPT(profile, Options0),
+ {role, server}], Options0),
case ssh_system_sup:system_supervisor(Host, Port, Profile) of
undefined ->
try sshd_sup:start_child(Options) of
{error, {already_started, _}} ->
{error, eaddrinuse};
+ {error, Error} ->
+ {error, Error};
Result = {ok,_} ->
- sync_request_control(WaitRequestControl, Options),
- Result;
- Result = {error, _} ->
- Result
+ F(Options, Result)
catch
exit:{noproc, _} ->
{error, ssh_not_started}
end;
- Sup ->
+ Sup ->
AccPid = ssh_system_sup:acceptor_supervisor(Sup),
case ssh_acceptor_sup:start_child(AccPid, Options) of
{error, {already_started, _}} ->
{error, eaddrinuse};
+ {error, Error} ->
+ {error, Error};
{ok, _} ->
- sync_request_control(WaitRequestControl, Options),
- {ok, Sup};
- Other ->
- Other
+ F(Options, {ok,Sup})
end
end.
-call_ssh_acceptor_handle_connection(Host, Port, Options, Socket, DefaultResult) ->
- {_, Callback, _} = ?GET_OPT(transport, Options),
- try ssh_acceptor:handle_connection(Callback, Host, Port, Options, Socket)
- of
- {error,Error} -> {error,Error};
- _ -> DefaultResult
- catch
- C:R -> {error,{could_not_start_connection,{C,R}}}
- end.
-
-
-sync_request_control(false, _Options) ->
- ok;
-sync_request_control(LSock, Options) ->
- {_, Callback, _} = ?GET_OPT(transport, Options),
- receive
- {request_control,LSock,ReqPid} ->
- ok = Callback:controlling_process(LSock, ReqPid),
- ReqPid ! {its_yours,LSock},
- ok
- end.
-
-find_hostport(Fd) ->
- %% Using internal functions inet:open/8 and inet:close/0.
- %% Don't try this at home unless you know what you are doing!
- {ok,S} = inet:open(Fd, {0,0,0,0}, 0, [], tcp, inet, stream, inet_tcp),
- {ok, HostPort} = inet:sockname(S),
- ok = inet:close(S),
- HostPort.
-
-fmt_host({A,B,C,D}) ->
- lists:concat([A,".",B,".",C,".",D]);
-fmt_host(T={_,_,_,_,_,_,_,_}) ->
- lists:flatten(string:join([io_lib:format("~.16B",[A]) || A <- tuple_to_list(T)], ":")).
+%%%----------------------------------------------------------------
+fmt_host(any) -> any;
+fmt_host(IP) when is_tuple(IP) -> inet:ntoa(IP);
+fmt_host(Str) when is_list(Str) -> Str.
diff --git a/lib/ssh/src/ssh.hrl b/lib/ssh/src/ssh.hrl
index c1ba58ed40..315310f700 100644
--- a/lib/ssh/src/ssh.hrl
+++ b/lib/ssh/src/ssh.hrl
@@ -75,9 +75,12 @@
%% Option access macros
-define(do_get_opt(C,K,O), ssh_options:get_value(C,K,O, ?MODULE,?LINE)).
--define(do_get_opt(C,K,O,D), ssh_options:get_value(C,K,O,D,?MODULE,?LINE)).
+-define(do_get_opt(C,K,O,D), ssh_options:get_value(C,K,O,?LAZY(D),?MODULE,?LINE)).
+
+-define(LAZY(D), fun()-> D end).
-define(GET_OPT(Key,Opts), ?do_get_opt(user_options, Key,Opts ) ).
+-define(GET_OPT(Key,Opts,Def), ?do_get_opt(user_options, Key,Opts,Def) ).
-define(GET_INTERNAL_OPT(Key,Opts), ?do_get_opt(internal_options,Key,Opts ) ).
-define(GET_INTERNAL_OPT(Key,Opts,Def), ?do_get_opt(internal_options,Key,Opts,Def) ).
-define(GET_SOCKET_OPT(Key,Opts), ?do_get_opt(socket_options, Key,Opts ) ).
@@ -89,6 +92,10 @@
-define(PUT_INTERNAL_OPT(KeyVal,Opts), ?do_put_opt(internal_options,KeyVal,Opts) ).
-define(PUT_SOCKET_OPT(KeyVal,Opts), ?do_put_opt(socket_options, KeyVal,Opts) ).
+-define(do_del_opt(C,K,O), ssh_options:delete_key(C,K,O, ?MODULE,?LINE)).
+-define(DELETE_INTERNAL_OPT(Key,Opts), ?do_del_opt(internal_options,Key,Opts) ).
+
+
%% Types
-type role() :: client | server .
-type ok_error(SuccessType) :: {ok, SuccessType} | {error, any()} .
@@ -109,12 +116,25 @@
-type double_algs() :: list( {client2serverlist,simple_algs()} | {server2client,simple_algs()} )
| simple_algs() .
+-type options() :: #{socket_options := socket_options(),
+ internal_options := internal_options(),
+ option_key() => any()
+ }.
+
+-type socket_options() :: proplists:proplist().
+-type internal_options() :: #{option_key() => any()}.
+
+-type option_key() :: atom().
+
+
%% Records
-record(ssh,
{
- role, %% client | server
- peer, %% string version of peer address
+ role :: client | role(),
+ peer :: undefined |
+ {inet:hostname(),
+ {inet:ip_adress(),inet:port_number()}}, %% string version of peer address
c_vsn, %% client version {Major,Minor}
s_vsn, %% server version {Major,Minor}
diff --git a/lib/ssh/src/ssh_acceptor.erl b/lib/ssh/src/ssh_acceptor.erl
index 42be18f2ad..f9e2280212 100644
--- a/lib/ssh/src/ssh_acceptor.erl
+++ b/lib/ssh/src/ssh_acceptor.erl
@@ -27,8 +27,8 @@
%% Internal application API
-export([start_link/4,
number_of_connections/1,
- callback_listen/2,
- handle_connection/5]).
+ listen/2,
+ handle_established_connection/4]).
%% spawn export
-export([acceptor_init/5, acceptor_loop/6]).
@@ -42,41 +42,57 @@ start_link(Port, Address, Options, AcceptTimeout) ->
Args = [self(), Port, Address, Options, AcceptTimeout],
proc_lib:start_link(?MODULE, acceptor_init, Args).
+%%%----------------------------------------------------------------
+number_of_connections(SystemSup) ->
+ length([X ||
+ {R,X,supervisor,[ssh_subsystem_sup]} <- supervisor:which_children(SystemSup),
+ is_pid(X),
+ is_reference(R)
+ ]).
+
+%%%----------------------------------------------------------------
+listen(Port, Options) ->
+ {_, Callback, _} = ?GET_OPT(transport, Options),
+ SockOpts = [{active, false}, {reuseaddr,true} | ?GET_OPT(socket_options, Options)],
+ case Callback:listen(Port, SockOpts) of
+ {error, nxdomain} ->
+ Callback:listen(Port, lists:delete(inet6, SockOpts));
+ {error, enetunreach} ->
+ Callback:listen(Port, lists:delete(inet6, SockOpts));
+ {error, eafnosupport} ->
+ Callback:listen(Port, lists:delete(inet6, SockOpts));
+ Other ->
+ Other
+ end.
+
+%%%----------------------------------------------------------------
+handle_established_connection(Address, Port, Options, Socket) ->
+ {_, Callback, _} = ?GET_OPT(transport, Options),
+ handle_connection(Callback, Address, Port, Options, Socket).
+
%%--------------------------------------------------------------------
%%% Internal functions
%%--------------------------------------------------------------------
acceptor_init(Parent, Port, Address, Opts, AcceptTimeout) ->
- {_, Callback, _} = ?GET_OPT(transport, Opts),
try
- {LSock0,SockOwner0} = ?GET_INTERNAL_OPT(lsocket, Opts),
- true = is_pid(SockOwner0),
- {ok,{_,Port}} = inet:sockname(LSock0),
- {LSock0, SockOwner0}
+ ?GET_INTERNAL_OPT(lsocket, Opts)
of
{LSock, SockOwner} ->
- %% Use existing socket
- proc_lib:init_ack(Parent, {ok, self()}),
- request_ownership(LSock, SockOwner),
- acceptor_loop(Callback, Port, Address, Opts, LSock, AcceptTimeout)
- catch
- error:{badkey,lsocket} ->
- %% Open new socket
- try
- socket_listen(Port, Opts)
- of
- {ok, ListenSocket} ->
+ case inet:sockname(LSock) of
+ {ok,{_,Port}} -> % A usable, open LSock
proc_lib:init_ack(Parent, {ok, self()}),
- {_, Callback, _} = ?GET_OPT(transport, Opts),
- acceptor_loop(Callback,
- Port, Address, Opts, ListenSocket, AcceptTimeout);
- {error,Error} ->
- proc_lib:init_ack(Parent, Error),
- {error,Error}
- catch
- _:_ ->
- {error,listen_socket_failed}
- end;
+ request_ownership(LSock, SockOwner),
+ {_, Callback, _} = ?GET_OPT(transport, Opts),
+ acceptor_loop(Callback, Port, Address, Opts, LSock, AcceptTimeout);
+ {error,_} -> % Not open, a restart
+ {ok,NewLSock} = listen(Port, Opts),
+ proc_lib:init_ack(Parent, {ok, self()}),
+ Opts1 = ?DELETE_INTERNAL_OPT(lsocket, Opts),
+ {_, Callback, _} = ?GET_OPT(transport, Opts1),
+ acceptor_loop(Callback, Port, Address, Opts1, NewLSock, AcceptTimeout)
+ end
+ catch
_:_ ->
{error,use_existing_socket_failed}
end.
@@ -88,30 +104,7 @@ request_ownership(LSock, SockOwner) ->
{its_yours,LSock} -> ok
end.
-
-socket_listen(Port0, Opts) ->
- Port = case ?GET_SOCKET_OPT(fd, Opts) of
- undefined -> Port0;
- _ -> 0
- end,
- callback_listen(Port, Opts).
-
-
-callback_listen(Port, Opts0) ->
- {_, Callback, _} = ?GET_OPT(transport, Opts0),
- Opts = ?PUT_SOCKET_OPT([{active, false}, {reuseaddr,true}], Opts0),
- SockOpts = ?GET_OPT(socket_options, Opts),
- case Callback:listen(Port, SockOpts) of
- {error, nxdomain} ->
- Callback:listen(Port, lists:delete(inet6, SockOpts));
- {error, enetunreach} ->
- Callback:listen(Port, lists:delete(inet6, SockOpts));
- {error, eafnosupport} ->
- Callback:listen(Port, lists:delete(inet6, SockOpts));
- Other ->
- Other
- end.
-
+%%%----------------------------------------------------------------
acceptor_loop(Callback, Port, Address, Opts, ListenSocket, AcceptTimeout) ->
case (catch Callback:accept(ListenSocket, AcceptTimeout)) of
{ok, Socket} ->
@@ -128,6 +121,7 @@ acceptor_loop(Callback, Port, Address, Opts, ListenSocket, AcceptTimeout) ->
ListenSocket, AcceptTimeout)
end.
+%%%----------------------------------------------------------------
handle_connection(Callback, Address, Port, Options, Socket) ->
Profile = ?GET_OPT(profile, Options),
SystemSup = ssh_system_sup:system_supervisor(Address, Port, Profile),
@@ -159,7 +153,7 @@ handle_connection(Callback, Address, Port, Options, Socket) ->
{error,max_sessions}
end.
-
+%%%----------------------------------------------------------------
handle_error(timeout) ->
ok;
@@ -186,10 +180,3 @@ handle_error(Reason) ->
error_logger:error_report(String),
exit({accept_failed, String}).
-
-number_of_connections(SystemSup) ->
- length([X ||
- {R,X,supervisor,[ssh_subsystem_sup]} <- supervisor:which_children(SystemSup),
- is_pid(X),
- is_reference(R)
- ]).
diff --git a/lib/ssh/src/ssh_connection_handler.erl b/lib/ssh/src/ssh_connection_handler.erl
index 5a13209ae3..50a29bbb53 100644
--- a/lib/ssh/src/ssh_connection_handler.erl
+++ b/lib/ssh/src/ssh_connection_handler.erl
@@ -413,14 +413,8 @@ init_connection(server, C = #connection{}, Opts) ->
SubSystemSup = proplists:get_value(subsystem_sup, Sups),
ConnectionSup = proplists:get_value(connection_sup, Sups),
- Shell = ?GET_OPT(shell, Opts),
- Exec = ?GET_OPT(exec, Opts),
- CliSpec = case ?GET_OPT(ssh_cli, Opts) of
- undefined -> {ssh_cli, [Shell]};
- Spec -> Spec
- end,
- C#connection{cli_spec = CliSpec,
- exec = Exec,
+ C#connection{cli_spec = ?GET_OPT(ssh_cli, Opts, {ssh_cli,[?GET_OPT(shell, Opts)]}),
+ exec = ?GET_OPT(exec, Opts),
system_supervisor = SystemSup,
sub_system_supervisor = SubSystemSup,
connection_supervisor = ConnectionSup
diff --git a/lib/ssh/src/ssh_options.erl b/lib/ssh/src/ssh_options.erl
index 55f9c6bdc8..ee3cdbb8a0 100644
--- a/lib/ssh/src/ssh_options.erl
+++ b/lib/ssh/src/ssh_options.erl
@@ -28,6 +28,7 @@
-export([default/1,
get_value/5, get_value/6,
put_value/5,
+ delete_key/5,
handle_options/2
]).
@@ -37,16 +38,6 @@
%%%================================================================
%%% Types
--type options() :: #{socket_options := socket_options(),
- internal_options := internal_options(),
- option_key() => any()
- }.
-
--type socket_options() :: proplists:proplist().
--type internal_options() :: #{option_key() => any()}.
-
--type option_key() :: atom().
-
-type option_in() :: proplists:property() | proplists:proplist() .
-type option_class() :: internal_options | socket_options | user_options .
@@ -75,22 +66,23 @@ get_value(Class, Key, Opts, _CallerMod, _CallerLine) when is_map(Opts) ->
user_options -> maps:get(Key, Opts)
end;
get_value(Class, Key, Opts, _CallerMod, _CallerLine) ->
- io:format("*** Bad Opts GET OPT ~p ~p:~p Key=~p,~n Opts=~p~n",[Class,_CallerMod,_CallerLine,Key,Opts]),
error({bad_options,Class, Key, Opts, _CallerMod, _CallerLine}).
--spec get_value(option_class(), option_key(), options(), any(),
+-spec get_value(option_class(), option_key(), options(), fun(() -> any()),
atom(), non_neg_integer()) -> any() | no_return().
-get_value(socket_options, Key, Opts, Def, _CallerMod, _CallerLine) when is_map(Opts) ->
- proplists:get_value(Key, maps:get(socket_options,Opts), Def);
-get_value(Class, Key, Opts, Def, CallerMod, CallerLine) when is_map(Opts) ->
+get_value(socket_options, Key, Opts, DefFun, _CallerMod, _CallerLine) when is_map(Opts) ->
+ proplists:get_value(Key, maps:get(socket_options,Opts), DefFun);
+get_value(Class, Key, Opts, DefFun, CallerMod, CallerLine) when is_map(Opts) ->
try get_value(Class, Key, Opts, CallerMod, CallerLine)
+ of
+ undefined -> DefFun();
+ Value -> Value
catch
- error:{badkey,Key} -> Def
+ error:{badkey,Key} -> DefFun()
end;
-get_value(Class, Key, Opts, _Def, _CallerMod, _CallerLine) ->
- io:format("*** Bad Opts GET OPT ~p ~p:~p Key=~p,~n Opts=~p~n",[Class,_CallerMod,_CallerLine,Key,Opts]),
+get_value(Class, Key, Opts, _DefFun, _CallerMod, _CallerLine) ->
error({bad_options,Class, Key, Opts, _CallerMod, _CallerLine}).
@@ -136,6 +128,19 @@ put_socket_value(A, SockOpts) when is_atom(A) ->
%%%================================================================
%%%
+%%% Delete an option
+%%%
+
+-spec delete_key(option_class(), option_key(), options(),
+ atom(), non_neg_integer()) -> options().
+
+delete_key(internal_options, Key, Opts, _CallerMod, _CallerLine) when is_map(Opts) ->
+ InternalOpts = maps:get(internal_options,Opts),
+ Opts#{internal_options := maps:remove(Key, InternalOpts)}.
+
+
+%%%================================================================
+%%%
%%% Initialize the options
%%%
@@ -792,18 +797,17 @@ read_moduli_file(D, I, Acc) ->
check_silently_accept_hosts(B) when is_boolean(B) -> true;
check_silently_accept_hosts(F) when is_function(F,2) -> true;
-check_silently_accept_hosts({S,F}) when is_atom(S),
- is_function(F,2) ->
- lists:member(S, ?SHAs) andalso
- lists:member(S, proplists:get_value(hashs,crypto:supports()));
-check_silently_accept_hosts({L,F}) when is_list(L),
- is_function(F,2) ->
- lists:all(fun(S) ->
- lists:member(S, ?SHAs) andalso
- lists:member(S, proplists:get_value(hashs,crypto:supports()))
- end, L);
+check_silently_accept_hosts({false,S}) when is_atom(S) -> valid_hash(S);
+check_silently_accept_hosts({S,F}) when is_function(F,2) -> valid_hash(S);
check_silently_accept_hosts(_) -> false.
+
+valid_hash(S) -> valid_hash(S, proplists:get_value(hashs,crypto:supports())).
+
+valid_hash(S, Ss) when is_atom(S) -> lists:member(S, ?SHAs) andalso lists:member(S, Ss);
+valid_hash(L, Ss) when is_list(L) -> lists:all(fun(S) -> valid_hash(S,Ss) end, L);
+valid_hash(X, _) -> error_in_check(X, "Expect atom or list in fingerprint spec").
+
%%%----------------------------------------------------------------
check_preferred_algorithms(Algs) ->
try alg_duplicates(Algs, [], [])
@@ -871,6 +875,7 @@ handle_pref_alg(Key, Vs, _) ->
chk_alg_vs(OptKey, Values, SupportedValues) ->
case (Values -- SupportedValues) of
[] -> Values;
+ [none] -> [none]; % for testing only
Bad -> error_in_check({OptKey,Bad}, "Unsupported value(s) found")
end.
diff --git a/lib/ssh/src/ssh_sftp.erl b/lib/ssh/src/ssh_sftp.erl
index 140856c8e3..f1f7b57e8d 100644
--- a/lib/ssh/src/ssh_sftp.erl
+++ b/lib/ssh/src/ssh_sftp.erl
@@ -1063,15 +1063,6 @@ attr_to_info(A) when is_record(A, ssh_xfer_attr) ->
gid = A#ssh_xfer_attr.group}.
-%% Added workaround for sftp timestam problem. (Timestamps should be
-%% in UTC but they where not) . The workaround uses a deprecated
-%% function i calandar. This will work as expected most of the time
-%% but has problems for the same reason as
-%% calendar:local_time_to_universal_time/1. We consider it better that
-%% the timestamps work as expected most of the time instead of none of
-%% the time. Hopfully the file-api will be updated so that we can
-%% solve this problem in a better way in the future.
-
unix_to_datetime(undefined) ->
undefined;
unix_to_datetime(UTCSecs) ->
diff --git a/lib/ssh/src/ssh_sftpd.erl b/lib/ssh/src/ssh_sftpd.erl
index 9352046795..b879116393 100644
--- a/lib/ssh/src/ssh_sftpd.erl
+++ b/lib/ssh/src/ssh_sftpd.erl
@@ -34,8 +34,7 @@
%%--------------------------------------------------------------------
%% External exports
--export([subsystem_spec/1,
- listen/1, listen/2, listen/3, stop/1]).
+-export([subsystem_spec/1]).
-export([init/1, handle_ssh_msg/2, handle_msg/2, terminate/2]).
@@ -76,29 +75,6 @@
subsystem_spec(Options) ->
{"sftp", {?MODULE, Options}}.
-%%% DEPRECATED START %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-%%--------------------------------------------------------------------
-%% Function: listen() -> Pid | {error,Error}
-%% Description: Starts the server
-%%--------------------------------------------------------------------
-listen(Port) ->
- listen(any, Port, []).
-listen(Port, Options) ->
- listen(any, Port, Options).
-listen(Addr, Port, Options) ->
- SubSystems = [subsystem_spec(Options)],
- ssh:daemon(Addr, Port, [{subsystems, SubSystems} |Options]).
-
-%%--------------------------------------------------------------------
-%% Function: stop(Pid) -> ok
-%% Description: Stops the listener
-%%--------------------------------------------------------------------
-stop(Pid) ->
- ssh:stop_listener(Pid).
-
-
-%%% DEPRECATED END %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%====================================================================
%% subsystem callbacks
diff --git a/lib/ssh/src/ssh_system_sup.erl b/lib/ssh/src/ssh_system_sup.erl
index b0bbd3aae5..5a58ef1c44 100644
--- a/lib/ssh/src/ssh_system_sup.erl
+++ b/lib/ssh/src/ssh_system_sup.erl
@@ -131,7 +131,7 @@ init([Options]) ->
RestartStrategy = one_for_one,
MaxR = 0,
MaxT = 3600,
- Children = case ?GET_INTERNAL_OPT(asocket,Options,undefined) of
+ Children = case ?GET_INTERNAL_OPT(connected_socket,Options,undefined) of
undefined -> child_specs(Options);
_ -> []
end,
diff --git a/lib/ssh/src/ssh_transport.erl b/lib/ssh/src/ssh_transport.erl
index 02c995399a..54ea80c727 100644
--- a/lib/ssh/src/ssh_transport.erl
+++ b/lib/ssh/src/ssh_transport.erl
@@ -200,9 +200,6 @@ is_valid_mac(Mac, Data, #ssh{recv_mac = Algorithm,
recv_mac_key = Key, recv_sequence = SeqNum}) ->
Mac == mac(Algorithm, Key, SeqNum, Data).
-yes_no(Ssh, Prompt) ->
- (Ssh#ssh.io_cb):yes_no(Prompt, Ssh).
-
format_version({Major,Minor}, SoftwareVersion) ->
"SSH-" ++ integer_to_list(Major) ++ "." ++
integer_to_list(Minor) ++ "-" ++ SoftwareVersion.
@@ -755,16 +752,44 @@ public_algo({#'ECPoint'{},{namedCurve,OID}}) ->
accepted_host(Ssh, PeerName, Public, Opts) ->
case ?GET_OPT(silently_accept_hosts, Opts) of
- F when is_function(F,2) ->
+
+ %% Original option values; User question and no host key fingerprints known.
+ %% Keep the original question unchanged:
+ false -> yes == yes_no(Ssh, "New host " ++ PeerName ++ " accept");
+ true -> true;
+
+ %% Variant: User question but with host key fingerprint in the question:
+ {false,Alg} ->
+ HostKeyAlg = (Ssh#ssh.algorithms)#alg.hkey,
+ Prompt = io_lib:format("The authenticity of the host can't be established.~n"
+ "~s host key fingerprint is ~s.~n"
+ "New host ~p accept",
+ [fmt_hostkey(HostKeyAlg),
+ public_key:ssh_hostkey_fingerprint(Alg,Public),
+ PeerName]),
+ yes == yes_no(Ssh, Prompt);
+
+ %% Call-back alternatives: A user provided fun is called for the decision:
+ F when is_function(F,2) ->
true == (catch F(PeerName, public_key:ssh_hostkey_fingerprint(Public)));
+
{DigestAlg,F} when is_function(F,2) ->
- true == (catch F(PeerName, public_key:ssh_hostkey_fingerprint(DigestAlg,Public)));
- true ->
- true;
- false ->
- yes == yes_no(Ssh, "New host " ++ PeerName ++ " accept")
+ true == (catch F(PeerName, public_key:ssh_hostkey_fingerprint(DigestAlg,Public)))
+
end.
+
+yes_no(Ssh, Prompt) ->
+ (Ssh#ssh.io_cb):yes_no(Prompt, Ssh#ssh.opts).
+
+
+fmt_hostkey('ssh-rsa') -> "RSA";
+fmt_hostkey('ssh-dss') -> "DSA";
+fmt_hostkey(A) when is_atom(A) -> fmt_hostkey(atom_to_list(A));
+fmt_hostkey("ecdsa"++_) -> "ECDSA";
+fmt_hostkey(X) -> X.
+
+
known_host_key(#ssh{opts = Opts, key_cb = {KeyCb,KeyCbOpts}, peer = {PeerName,_}} = Ssh,
Public, Alg) ->
UserOpts = ?GET_OPT(user_options, Opts),
diff --git a/lib/ssh/test/ssh_sftpd_SUITE.erl b/lib/ssh/test/ssh_sftpd_SUITE.erl
index b167f98ac8..673fb54a4f 100644
--- a/lib/ssh/test/ssh_sftpd_SUITE.erl
+++ b/lib/ssh/test/ssh_sftpd_SUITE.erl
@@ -151,8 +151,8 @@ init_per_testcase(TestCase, Config) ->
SubSystems = [ssh_sftpd:subsystem_spec([])],
ssh:daemon(0, [{subsystems, SubSystems}|Options])
end,
- {ok,Dinf} = ssh:daemon_info(Sftpd),
- Port = proplists:get_value(port, Dinf),
+
+ Port = ssh_test_lib:daemon_port(Sftpd),
Cm = ssh_test_lib:connect(Port,
[{user_dir, ClientUserDir},
@@ -187,7 +187,7 @@ init_per_testcase(TestCase, Config) ->
[{sftp, {Cm, Channel}}, {sftpd, Sftpd }| Config].
end_per_testcase(_TestCase, Config) ->
- ssh_sftpd:stop(proplists:get_value(sftpd, Config)),
+ catch ssh:stop_daemon(proplists:get_value(sftpd, Config)),
{Cm, Channel} = proplists:get_value(sftp, Config),
ssh_connection:close(Cm, Channel),
ssh:close(Cm),
diff --git a/lib/ssh/test/ssh_sftpd_erlclient_SUITE.erl b/lib/ssh/test/ssh_sftpd_erlclient_SUITE.erl
index b4d7eadfa4..9b5d6b5fae 100644
--- a/lib/ssh/test/ssh_sftpd_erlclient_SUITE.erl
+++ b/lib/ssh/test/ssh_sftpd_erlclient_SUITE.erl
@@ -138,7 +138,7 @@ init_per_testcase(TestCase, Config) ->
[{port, Port}, {sftp, {ChannelPid, Connection}}, {sftpd, Sftpd} | NewConfig].
end_per_testcase(_TestCase, Config) ->
- catch ssh_sftpd:stop(proplists:get_value(sftpd, Config)),
+ catch ssh:stop_daemon(proplists:get_value(sftpd, Config)),
{Sftp, Connection} = proplists:get_value(sftp, Config),
catch ssh_sftp:stop_channel(Sftp),
catch ssh:close(Connection),
diff --git a/lib/ssh/test/ssh_sup_SUITE.erl b/lib/ssh/test/ssh_sup_SUITE.erl
index ff53e1c4c6..fdeb8186a5 100644
--- a/lib/ssh/test/ssh_sup_SUITE.erl
+++ b/lib/ssh/test/ssh_sup_SUITE.erl
@@ -41,7 +41,8 @@ suite() ->
{timetrap,{seconds,100}}].
all() ->
- [default_tree, sshc_subtree, sshd_subtree, sshd_subtree_profile].
+ [default_tree, sshc_subtree, sshd_subtree, sshd_subtree_profile,
+ killed_acceptor_restarts].
groups() ->
[].
@@ -100,6 +101,7 @@ default_tree(Config) when is_list(Config) ->
?wait_match([], supervisor:which_children(sshc_sup)),
?wait_match([], supervisor:which_children(sshd_sup)).
+%%-------------------------------------------------------------------------
sshc_subtree() ->
[{doc, "Make sure the sshc subtree is correct"}].
sshc_subtree(Config) when is_list(Config) ->
@@ -128,6 +130,7 @@ sshc_subtree(Config) when is_list(Config) ->
ssh:close(Pid2),
?wait_match([], supervisor:which_children(sshc_sup)).
+%%-------------------------------------------------------------------------
sshd_subtree() ->
[{doc, "Make sure the sshd subtree is correct"}].
sshd_subtree(Config) when is_list(Config) ->
@@ -149,6 +152,7 @@ sshd_subtree(Config) when is_list(Config) ->
ct:sleep(?WAIT_FOR_SHUTDOWN),
?wait_match([], supervisor:which_children(sshd_sup)).
+%%-------------------------------------------------------------------------
sshd_subtree_profile() ->
[{doc, "Make sure the sshd subtree using profile option is correct"}].
sshd_subtree_profile(Config) when is_list(Config) ->
@@ -172,19 +176,88 @@ sshd_subtree_profile(Config) when is_list(Config) ->
ct:sleep(?WAIT_FOR_SHUTDOWN),
?wait_match([], supervisor:which_children(sshd_sup)).
+%%-------------------------------------------------------------------------
+killed_acceptor_restarts(Config) ->
+ Profile = proplists:get_value(profile, Config),
+ SystemDir = proplists:get_value(data_dir, Config),
+ UserDir = proplists:get_value(userdir, Config),
+ {ok, DaemonPid} = ssh:daemon(0, [{system_dir, SystemDir},
+ {failfun, fun ssh_test_lib:failfun/2},
+ {user_passwords, [{?USER, ?PASSWD}]},
+ {profile, Profile}]),
+
+ {ok, DaemonPid2} = ssh:daemon(0, [{system_dir, SystemDir},
+ {failfun, fun ssh_test_lib:failfun/2},
+ {user_passwords, [{?USER, ?PASSWD}]},
+ {profile, Profile}]),
+
+ Port = ssh_test_lib:daemon_port(DaemonPid),
+ Port2 = ssh_test_lib:daemon_port(DaemonPid2),
+ true = (Port /= Port2),
+
+ ct:pal("~s",[lists:flatten(ssh_info:string())]),
+
+ {ok,[{AccPid,ListenAddr,Port}]} = acceptor_pid(DaemonPid),
+ {ok,[{AccPid2,ListenAddr,Port2}]} = acceptor_pid(DaemonPid2),
+
+ true = (AccPid /= AccPid2),
+
+ %% Connect first client and check it is alive:
+ {ok,C1} = ssh:connect("localhost", Port, [{silently_accept_hosts, true},
+ {user_interaction, false},
+ {user, ?USER},
+ {password, ?PASSWD},
+ {user_dir, UserDir}]),
+ [{client_version,_}] = ssh:connection_info(C1,[client_version]),
+ %% Make acceptor restart:
+ exit(AccPid, kill),
+
+ %% Check it is a new acceptor:
+ {ok,[{AccPid1,ListenAddr,Port}]} = acceptor_pid(DaemonPid),
+ true = (AccPid /= AccPid1),
+ true = (AccPid2 /= AccPid1),
+
+ %% Connect second client and check it is alive:
+ {ok,C2} = ssh:connect("localhost", Port, [{silently_accept_hosts, true},
+ {user_interaction, false},
+ {user, ?USER},
+ {password, ?PASSWD},
+ {user_dir, UserDir}]),
+ [{client_version,_}] = ssh:connection_info(C2,[client_version]),
+
+ ct:pal("~s",[lists:flatten(ssh_info:string())]),
+
+ %% Check first client is still alive:
+ [{client_version,_}] = ssh:connection_info(C1,[client_version]),
+
+ ok = ssh:stop_daemon(DaemonPid2),
+ timer:sleep(15000),
+ [{client_version,_}] = ssh:connection_info(C1,[client_version]),
+ [{client_version,_}] = ssh:connection_info(C2,[client_version]),
+
+ ok = ssh:stop_daemon(DaemonPid),
+ timer:sleep(15000),
+ {error,closed} = ssh:connection_info(C1,[client_version]),
+ {error,closed} = ssh:connection_info(C2,[client_version]).
+
+%%-------------------------------------------------------------------------
+%% Help functions
+%%-------------------------------------------------------------------------
check_sshd_system_tree(Daemon, Config) ->
Host = proplists:get_value(host, Config),
Port = proplists:get_value(port, Config),
UserDir = proplists:get_value(userdir, Config),
{ok, Client} = ssh:connect(Host, Port, [{silently_accept_hosts, true},
- {user_interaction, false},
- {user, ?USER}, {password, ?PASSWD},{user_dir, UserDir}]),
+ {user_interaction, false},
+ {user, ?USER},
+ {password, ?PASSWD},
+ {user_dir, UserDir}]),
?wait_match([{_,SubSysSup, supervisor,[ssh_subsystem_sup]},
{{ssh_acceptor_sup,_,_,_}, AccSup, supervisor,[ssh_acceptor_sup]}],
supervisor:which_children(Daemon),
- [SubSysSup,AccSup]),
+ [SubSysSup,AccSup]),
?wait_match([{{server,ssh_connection_sup, _,_},
ConnectionSup, supervisor,
@@ -208,4 +281,32 @@ check_sshd_system_tree(Daemon, Config) ->
?wait_match([{_, _,worker,[ssh_channel]}],
supervisor:which_children(ChannelSup)),
ssh:close(Client).
-
+
+acceptor_pid(DaemonPid) ->
+ Parent = self(),
+ Pid = spawn(fun() ->
+ Parent ! {self(), supsearch,
+ [{AccPid,ListenAddr,Port}
+
+ || {{server,ssh_system_sup,ListenAddr,Port,NS},
+ DPid,supervisor,
+ [ssh_system_sup]} <- supervisor:which_children(sshd_sup),
+ DPid == DaemonPid,
+
+ {{ssh_acceptor_sup,L1,P1,NS1},
+ AccSupPid,supervisor,
+ [ssh_acceptor_sup]} <- supervisor:which_children(DaemonPid),
+ L1 == ListenAddr,
+ P1 == Port,
+ NS1 == NS1,
+
+ {{ssh_acceptor_sup,L2,P2,NS2},
+ AccPid,worker,
+ [ssh_acceptor]} <- supervisor:which_children(AccSupPid),
+ L2 == ListenAddr,
+ P2 == Port,
+ NS2 == NS]}
+ end),
+ receive {Pid, supsearch, L} -> {ok,L}
+ after 2000 -> timeout
+ end.
diff --git a/lib/ssh/test/ssh_test_lib.erl b/lib/ssh/test/ssh_test_lib.erl
index 1673f52821..0ada8233a7 100644
--- a/lib/ssh/test/ssh_test_lib.erl
+++ b/lib/ssh/test/ssh_test_lib.erl
@@ -64,6 +64,9 @@ daemon(Host, Port, Options) ->
Error
end.
+daemon_port(Pid) -> daemon_port(0, Pid).
+
+
daemon_port(0, Pid) -> {ok,Dinf} = ssh:daemon_info(Pid),
proplists:get_value(port, Dinf);
daemon_port(Port, _) -> Port.
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-03 14:42:36 +0000