diff options
Diffstat (limited to 'lib/ssh/src')
| -rw-r--r-- | lib/ssh/src/ssh_connection_handler.erl | 39 | ||||
| -rw-r--r-- | lib/ssh/src/ssh_dbg.erl | 151 | ||||
| -rw-r--r-- | lib/ssh/src/ssh_file.erl | 17 | ||||
| -rw-r--r-- | lib/ssh/src/ssh_message.erl | 14 | ||||
| -rw-r--r-- | lib/ssh/src/ssh_options.erl | 49 | ||||
| -rw-r--r-- | lib/ssh/src/ssh_transport.erl | 50 |
6 files changed, 220 insertions, 100 deletions
diff --git a/lib/ssh/src/ssh_connection_handler.erl b/lib/ssh/src/ssh_connection_handler.erl index 342583306b..f1ce337947 100644 --- a/lib/ssh/src/ssh_connection_handler.erl +++ b/lib/ssh/src/ssh_connection_handler.erl @@ -346,7 +346,7 @@ renegotiate_data(ConnectionHandler) -> | undefined, last_size_rekey = 0 :: non_neg_integer(), event_queue = [] :: list(), - opts :: ssh_options:options(), +% opts :: ssh_options:options(), inet_initial_recbuf_size :: pos_integer() | undefined }). @@ -398,8 +398,7 @@ init([Role,Socket,Opts]) -> transport_protocol = Protocol, transport_cb = Callback, transport_close_tag = CloseTag, - ssh_params = init_ssh_record(Role, Socket, PeerAddr, Opts), - opts = Opts + ssh_params = init_ssh_record(Role, Socket, PeerAddr, Opts) }, D = case Role of client -> @@ -434,11 +433,7 @@ init_ssh_record(Role, Socket, Opts) -> init_ssh_record(Role, _Socket, PeerAddr, Opts) -> KeyCb = ?GET_OPT(key_cb, Opts), - AuthMethods = - case Role of - server -> ?GET_OPT(auth_methods, Opts); - client -> undefined - end, + AuthMethods = ?GET_OPT(auth_methods, Opts), S0 = #ssh{role = Role, key_cb = KeyCb, opts = Opts, @@ -1016,7 +1011,7 @@ handle_event(cast, renegotiate, _, _) -> handle_event(cast, data_size, {connected,Role}, D) -> {ok, [{send_oct,Sent0}]} = inet:getstat(D#data.socket, [send_oct]), Sent = Sent0 - D#data.last_size_rekey, - MaxSent = ?GET_OPT(rekey_limit, D#data.opts), + MaxSent = ?GET_OPT(rekey_limit, (D#data.ssh_params)#ssh.opts), timer:apply_after(?REKEY_DATA_TIMOUT, gen_statem, cast, [self(), data_size]), case Sent >= MaxSent of true -> @@ -1705,15 +1700,23 @@ handle_ssh_msg_ext_info(#ssh_msg_ext_info{data=Data}, D0) -> lists:foldl(fun ext_info/2, D0, Data). -ext_info({"server-sig-algs",SigAlgs}, D0 = #data{ssh_params=#ssh{role=client}=Ssh0}) -> +ext_info({"server-sig-algs",SigAlgs}, D0 = #data{ssh_params=#ssh{role=client, + userauth_pubkeys=ClientSigAlgs}=Ssh0}) -> %% Make strings to eliminate risk of beeing bombed with odd strings that fills the atom table: SupportedAlgs = lists:map(fun erlang:atom_to_list/1, ssh_transport:supported_algorithms(public_key)), - Ssh = Ssh0#ssh{userauth_pubkeys = - [list_to_atom(SigAlg) || SigAlg <- string:tokens(SigAlgs,","), - %% length of SigAlg is implicitly checked by member: - lists:member(SigAlg, SupportedAlgs) - ]}, - D0#data{ssh_params = Ssh}; + ServerSigAlgs = [list_to_atom(SigAlg) || SigAlg <- string:tokens(SigAlgs,","), + %% length of SigAlg is implicitly checked by the comparison + %% in member/2: + lists:member(SigAlg, SupportedAlgs) + ], + CommonAlgs = [Alg || Alg <- ServerSigAlgs, + lists:member(Alg, ClientSigAlgs)], + SelectedAlgs = + case CommonAlgs of + [] -> ClientSigAlgs; % server-sig-algs value is just an advice + _ -> CommonAlgs + end, + D0#data{ssh_params = Ssh0#ssh{userauth_pubkeys = SelectedAlgs} }; ext_info(_, D0) -> %% Not implemented @@ -1863,7 +1866,7 @@ get_repl(X, Acc) -> exit({get_repl,X,Acc}). %%%---------------------------------------------------------------- --define(CALL_FUN(Key,D), catch (?GET_OPT(Key, D#data.opts)) ). +-define(CALL_FUN(Key,D), catch (?GET_OPT(Key, (D#data.ssh_params)#ssh.opts)) ). disconnect_fun({disconnect,Msg}, D) -> ?CALL_FUN(disconnectfun,D)(Msg); disconnect_fun(Reason, D) -> ?CALL_FUN(disconnectfun,D)(Reason). @@ -1913,7 +1916,7 @@ retry_fun(User, Reason, #data{ssh_params = #ssh{opts = Opts, %%% channels open for a while. cache_init_idle_timer(D) -> - case ?GET_OPT(idle_time, D#data.opts) of + case ?GET_OPT(idle_time, (D#data.ssh_params)#ssh.opts) of infinity -> D#data{idle_timer_value = infinity, idle_timer_ref = infinity % A flag used later... diff --git a/lib/ssh/src/ssh_dbg.erl b/lib/ssh/src/ssh_dbg.erl index 7dfbfc3b4b..003b3856e6 100644 --- a/lib/ssh/src/ssh_dbg.erl +++ b/lib/ssh/src/ssh_dbg.erl @@ -22,9 +22,10 @@ -module(ssh_dbg). --export([messages/0, - messages/1, - messages/2, +-export([messages/0, messages/1, messages/2, + ct_messages/0, + auth/0, auth/1, auth/2, + ct_auth/0, stop/0 ]). @@ -43,75 +44,167 @@ messages() -> messages(fun(String,_D) -> io:format(String) end). +ct_messages() -> + messages(fun(String,_D) -> ct:log(String,[]) end). + messages(Write) when is_function(Write,2) -> messages(Write, fun(X) -> X end). messages(Write, MangleArg) when is_function(Write,2), is_function(MangleArg,1) -> - catch dbg:start(), - setup_tracer(Write, MangleArg), - dbg:p(new,[c,timestamp]), - dbg_ssh_messages(). + cond_start(msg, Write, MangleArg), + dbg_ssh_messages(), + dbg_ssh_auth(). + + +auth() -> + auth(fun(String,_D) -> io:format(String) end). + +ct_auth() -> + auth(fun(String,_D) -> ct:log(String,[]) end). + +auth(Write) when is_function(Write,2) -> + auth(Write, fun(X) -> X end). + +auth(Write, MangleArg) when is_function(Write,2), + is_function(MangleArg,1) -> + cond_start(auth, Write, MangleArg), + dbg_ssh_auth(). + dbg_ssh_messages() -> dbg:tp(ssh_message,encode,1, x), dbg:tp(ssh_message,decode,1, x), dbg:tpl(ssh_transport,select_algorithm,4, x), dbg:tp(ssh_transport,hello_version_msg,1, x), - dbg:tp(ssh_transport,handle_hello_version,1, x). + dbg:tp(ssh_transport,handle_hello_version,1, x), + dbg:tpl(ssh_connection_handler,ext_info,2, x). + +dbg_ssh_auth() -> + dbg:tp(ssh_transport,hello_version_msg,1, x), + dbg:tp(ssh_transport,handle_hello_version,1, x), + dbg:tp(ssh_message,encode,1, x), + dbg:tpl(ssh_transport,select_algorithm,4, x), + dbg:tpl(ssh_connection_handler,ext_info,2, x), + lists:foreach(fun(F) -> dbg:tp(ssh_auth, F, x) end, + [publickey_msg, password_msg, keyboard_interactive_msg]). %%%---------------------------------------------------------------- stop() -> dbg:stop(). %%%================================================================ -msg_formater({trace_ts,Pid,call,{ssh_message,encode,[Msg]},TS}, D) -> +cond_start(Type, Write, MangleArg) -> + try + dbg:start(), + setup_tracer(Type, Write, MangleArg), + dbg:p(new,[c,timestamp]) + catch + _:_ -> ok + end. + + +msg_formater(msg, {trace_ts,Pid,call,{ssh_message,encode,[Msg]},TS}, D) -> fmt("~n~s SEND ~p ~s~n", [ts(TS),Pid,wr_record(shrink_bin(Msg))], D); -msg_formater({trace_ts,_Pid,return_from,{ssh_message,encode,1},_Res,_TS}, D) -> +msg_formater(msg, {trace_ts,_Pid,return_from,{ssh_message,encode,1},_Res,_TS}, D) -> D; -msg_formater({trace_ts,_Pid,call,{ssh_message,decode,_},_TS}, D) -> +msg_formater(msg, {trace_ts,_Pid,call,{ssh_message,decode,_},_TS}, D) -> D; -msg_formater({trace_ts,Pid,return_from,{ssh_message,decode,1},Msg,TS}, D) -> +msg_formater(msg, {trace_ts,Pid,return_from,{ssh_message,decode,1},Msg,TS}, D) -> fmt("~n~s ~p RECV ~s~n", [ts(TS),Pid,wr_record(shrink_bin(Msg))], D); + +msg_formater(auth, {trace_ts,Pid,return_from,{ssh_message,decode,1},#ssh_msg_userauth_failure{authentications=As},TS}, D) -> + fmt("~n~s ~p Client login FAILURE. Try ~s~n", [ts(TS),Pid,As], D); + +msg_formater(auth, {trace_ts,Pid,return_from,{ssh_message,decode,1},#ssh_msg_userauth_success{},TS}, D) -> + fmt("~n~s ~p Client login SUCCESS~n", [ts(TS),Pid], D); + -msg_formater({trace_ts,_Pid,call,{ssh_transport,select_algorithm,_},_TS}, D) -> +msg_formater(_, {trace_ts,_Pid,call,{ssh_transport,select_algorithm,_},_TS}, D) -> D; -msg_formater({trace_ts,Pid,return_from,{ssh_transport,select_algorithm,_},{ok,Alg},TS}, D) -> +msg_formater(_, {trace_ts,Pid,return_from,{ssh_transport,select_algorithm,_},{ok,Alg},TS}, D) -> fmt("~n~s ~p ALGORITHMS~n~s~n", [ts(TS),Pid, wr_record(Alg)], D); -msg_formater({trace_ts,_Pid,call,{ssh_transport,hello_version_msg,_},_TS}, D) -> +msg_formater(_, {trace_ts,_Pid,call,{ssh_transport,hello_version_msg,_},_TS}, D) -> D; -msg_formater({trace_ts,Pid,return_from,{ssh_transport,hello_version_msg,1},Hello,TS}, D) -> +msg_formater(_, {trace_ts,Pid,return_from,{ssh_transport,hello_version_msg,1},Hello,TS}, D) -> fmt("~n~s ~p TCP SEND HELLO~n ~p~n", [ts(TS),Pid,lists:flatten(Hello)], D); -msg_formater({trace_ts,Pid,call,{ssh_transport,handle_hello_version,[Hello]},TS}, D) -> +msg_formater(_, {trace_ts,Pid,call,{ssh_transport,handle_hello_version,[Hello]},TS}, D) -> fmt("~n~s ~p RECV HELLO~n ~p~n", [ts(TS),Pid,lists:flatten(Hello)], D); -msg_formater({trace_ts,_Pid,return_from,{ssh_transport,handle_hello_version,1},_,_TS}, D) -> +msg_formater(_, {trace_ts,_Pid,return_from,{ssh_transport,handle_hello_version,1},_,_TS}, D) -> D; -msg_formater({trace_ts,Pid,send,{tcp,Sock,Bytes},Pid,TS}, D) -> +msg_formater(_, {trace_ts,Pid,call,{ssh_connection_handler,ext_info,[{"server-sig-algs",_SigAlgs},State]},TS}, D) -> + try lists:keyfind(ssh, 1, tuple_to_list(State)) of + false -> + D; + #ssh{userauth_pubkeys = PKs} -> + fmt("~n~s ~p Client got suggestion to use user public key sig-algs~n ~p~n", [ts(TS),Pid,PKs], D) + catch + _:_ -> + D + end; + +msg_formater(_, {trace_ts,Pid,return_from,{ssh_connection_handler,ext_info,2},State,TS}, D) -> + try lists:keyfind(ssh, 1, tuple_to_list(State)) of + false -> + D; + #ssh{userauth_pubkeys = PKs} -> + fmt("~n~s ~p Client will try user public key sig-algs~n ~p~n", [ts(TS),Pid,PKs], D) + catch + _:_ -> + D + end; + +msg_formater(_, {trace_ts,Pid,call,{ssh_auth,publickey_msg,[[SigAlg,#ssh{user=User}]]},TS}, D) -> + fmt("~n~s ~p Client will try to login user ~p with public key algorithm ~p~n", [ts(TS),Pid,User,SigAlg], D); +msg_formater(_, {trace_ts,Pid,return_from,{ssh_auth,publickey_msg,1},{not_ok,#ssh{user=User}},TS}, D) -> + fmt("~s ~p User ~p can't login with that kind of public key~n", [ts(TS),Pid,User], D); + +msg_formater(_, {trace_ts,Pid,call,{ssh_auth,password_msg,[[#ssh{user=User}]]},TS}, D) -> + fmt("~n~s ~p Client will try to login user ~p with password~n", [ts(TS),Pid,User], D); +msg_formater(_, {trace_ts,Pid,return_from,{ssh_auth,password_msg,1},{not_ok,#ssh{user=User}},TS}, D) -> + fmt("~s ~p User ~p can't login with password~n", [ts(TS),Pid,User], D); + +msg_formater(_, {trace_ts,Pid,call,{ssh_auth,keyboard_interactive_msg,[[#ssh{user=User}]]},TS}, D) -> + fmt("~n~s ~p Client will try to login user ~p with password~n", [ts(TS),Pid,User], D); +msg_formater(_, {trace_ts,Pid,return_from,{ssh_auth,keyboard_interactive_msg,1},{not_ok,#ssh{user=User}},TS}, D) -> + fmt("~s ~p User ~p can't login with keyboard_interactive password~n", [ts(TS),Pid,User], D); + +msg_formater(msg, {trace_ts,Pid,send,{tcp,Sock,Bytes},Pid,TS}, D) -> fmt("~n~s ~p TCP SEND on ~p~n ~p~n", [ts(TS),Pid,Sock, shrink_bin(Bytes)], D); -msg_formater({trace_ts,Pid,send,{tcp,Sock,Bytes},Dest,TS}, D) -> +msg_formater(msg, {trace_ts,Pid,send,{tcp,Sock,Bytes},Dest,TS}, D) -> fmt("~n~s ~p TCP SEND from ~p TO ~p~n ~p~n", [ts(TS),Pid,Sock,Dest, shrink_bin(Bytes)], D); -msg_formater({trace_ts,Pid,send,ErlangMsg,Dest,TS}, D) -> +msg_formater(msg, {trace_ts,Pid,send,ErlangMsg,Dest,TS}, D) -> fmt("~n~s ~p ERL MSG SEND TO ~p~n ~p~n", [ts(TS),Pid,Dest, shrink_bin(ErlangMsg)], D); -msg_formater({trace_ts,Pid,'receive',{tcp,Sock,Bytes},TS}, D) -> +msg_formater(msg, {trace_ts,Pid,'receive',{tcp,Sock,Bytes},TS}, D) -> fmt("~n~s ~p TCP RECEIVE on ~p~n ~p~n", [ts(TS),Pid,Sock,shrink_bin(Bytes)], D); -msg_formater({trace_ts,Pid,'receive',ErlangMsg,TS}, D) -> +msg_formater(msg, {trace_ts,Pid,'receive',ErlangMsg,TS}, D) -> fmt("~n~s ~p ERL MSG RECEIVE~n ~p~n", [ts(TS),Pid,shrink_bin(ErlangMsg)], D); -msg_formater(M, D) -> - fmt("~nDBG ~n~p~n", [shrink_bin(M)], D). +%% msg_formater(_, {trace_ts,_Pid,return_from,MFA,_Ret,_TS}=M, D) -> +%% case lists:member(MFA, [{ssh_auth,keyboard_interactive_msg,1}, +%% {ssh_auth,password_msg,1}, +%% {ssh_auth,publickey_msg,1}]) of +%% true -> +%% D; +%% false -> +%% fmt("~nDBG ~n~p~n", [shrink_bin(M)], D) +%% end; + +%% msg_formater(_, M, D) -> +%% fmt("~nDBG ~n~p~n", [shrink_bin(M)], D). -%% msg_formater(_, D) -> -%% D. +msg_formater(_, _, D) -> + D. fmt(Fmt, Args, D=#data{writer=Write,acc=Acc}) -> @@ -123,9 +216,9 @@ ts({_,_,Usec}=Now) -> ts(_) -> "-". %%%---------------------------------------------------------------- -setup_tracer(Write, MangleArg) -> +setup_tracer(Type, Write, MangleArg) -> Handler = fun(Arg, D) -> - msg_formater(MangleArg(Arg), D) + msg_formater(Type, MangleArg(Arg), D) end, InitialData = #data{writer = Write}, {ok,_} = dbg:tracer(process, {Handler, InitialData}), diff --git a/lib/ssh/src/ssh_file.erl b/lib/ssh/src/ssh_file.erl index 6692432fcf..33792da38f 100644 --- a/lib/ssh/src/ssh_file.erl +++ b/lib/ssh/src/ssh_file.erl @@ -75,10 +75,7 @@ host_key(Algorithm, Opts) -> Password = proplists:get_value(identity_pass_phrase(Algorithm), Opts, ignore), case decode(File, Password) of {ok,Key} -> - case ssh_transport:valid_key_sha_alg(Key,Algorithm) of - true -> {ok,Key}; - false -> {error,bad_keytype_in_file} - end; + check_key_type(Key, Algorithm); {error,DecodeError} -> {error,DecodeError} end. @@ -104,10 +101,20 @@ is_host_key(Key, PeerName, Algorithm, Opts) -> user_key(Algorithm, Opts) -> File = file_name(user, identity_key_filename(Algorithm), Opts), Password = proplists:get_value(identity_pass_phrase(Algorithm), Opts, ignore), - decode(File, Password). + case decode(File, Password) of + {ok, Key} -> + check_key_type(Key, Algorithm); + Error -> + Error + end. %% Internal functions %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +check_key_type(Key, Algorithm) -> + case ssh_transport:valid_key_sha_alg(Key,Algorithm) of + true -> {ok,Key}; + false -> {error,bad_keytype_in_file} + end. file_base_name('ssh-rsa' ) -> "ssh_host_rsa_key"; file_base_name('rsa-sha2-256' ) -> "ssh_host_rsa_key"; diff --git a/lib/ssh/src/ssh_message.erl b/lib/ssh/src/ssh_message.erl index 609040826f..b1fc05ae33 100644 --- a/lib/ssh/src/ssh_message.erl +++ b/lib/ssh/src/ssh_message.erl @@ -598,8 +598,8 @@ decode_kex_init(<<?DEC_BIN(Data,__0), Rest/binary>>, Acc, N) -> %%% Signature decode/encode %%% -decode_signature(<<?DEC_BIN(_Alg,__0), ?UINT32(_), Signature/binary>>) -> - Signature. +decode_signature(<<?DEC_BIN(Alg,__0), ?UINT32(_), Signature/binary>>) -> + {binary_to_list(Alg), Signature}. encode_signature({#'RSAPublicKey'{},Sign}, Signature) -> @@ -611,13 +611,3 @@ encode_signature({{#'ECPoint'{}, {namedCurve,OID}},_}, Signature) -> CurveName = public_key:oid2ssh_curvename(OID), <<?Ebinary(<<"ecdsa-sha2-",CurveName/binary>>), ?Ebinary(Signature)>>. -%% encode_signature(#'RSAPublicKey'{}, Signature) -> -%% SignName = <<"ssh-rsa">>, -%% <<?Ebinary(SignName), ?Ebinary(Signature)>>; -%% encode_signature({_, #'Dss-Parms'{}}, Signature) -> -%% <<?Ebinary(<<"ssh-dss">>), ?Ebinary(Signature)>>; -%% encode_signature({#'ECPoint'{}, {namedCurve,OID}}, Signature) -> -%% CurveName = public_key:oid2ssh_curvename(OID), -%% <<?Ebinary(<<"ecdsa-sha2-",CurveName/binary>>), ?Ebinary(Signature)>>. - - diff --git a/lib/ssh/src/ssh_options.erl b/lib/ssh/src/ssh_options.erl index 0886d5b34d..aebb5a7062 100644 --- a/lib/ssh/src/ssh_options.erl +++ b/lib/ssh/src/ssh_options.erl @@ -293,12 +293,6 @@ default(server) -> class => user_options }, - {auth_methods, def} => - #{default => ?SUPPORTED_AUTH_METHODS, - chk => fun check_string/1, - class => user_options - }, - {auth_method_kb_interactive_data, def} => #{default => undefined, % Default value can be constructed when User is known chk => fun({S1,S2,S3,B}) -> @@ -436,12 +430,9 @@ default(client) -> }, {pref_public_key_algs, def} => - #{default => - ssh_transport:supported_algorithms(public_key), - chk => - fun check_pref_public_key_algs/1, - class => - ssh + #{default => ssh_transport:default_algorithms(public_key), + chk => fun check_pref_public_key_algs/1, + class => user_options }, {dh_gex_limits, def} => @@ -582,6 +573,21 @@ default(common) -> class => user_options }, + {auth_methods, def} => + #{default => ?SUPPORTED_AUTH_METHODS, + chk => fun(As) -> + try + Sup = string:tokens(?SUPPORTED_AUTH_METHODS, ","), + New = string:tokens(As, ","), + [] == [X || X <- New, + not lists:member(X,Sup)] + catch + _:_ -> false + end + end, + class => user_options + }, + %%%%% Undocumented {transport, def} => #{default => ?DEFAULT_TRANSPORT, @@ -808,16 +814,23 @@ valid_hash(X, _) -> error_in_check(X, "Expect atom or list in fingerprint spec" %%%---------------------------------------------------------------- check_preferred_algorithms(Algs) -> + [error_in_check(K,"Bad preferred_algorithms key") + || {K,_} <- Algs, + not lists:keymember(K,1,ssh:default_algorithms())], + try alg_duplicates(Algs, [], []) of [] -> {true, - [try ssh_transport:supported_algorithms(Key) - of - DefAlgs -> handle_pref_alg(Key,Vals,DefAlgs) - catch - _:_ -> error_in_check(Key,"Bad preferred_algorithms key") - end || {Key,Vals} <- Algs] + [case proplists:get_value(Key, Algs) of + undefined -> + {Key,DefAlgs}; + Vals -> + handle_pref_alg(Key,Vals,SupAlgs) + end + || {{Key,DefAlgs}, {Key,SupAlgs}} <- lists:zip(ssh:default_algorithms(), + ssh_transport:supported_algorithms()) + ] }; Dups -> diff --git a/lib/ssh/src/ssh_transport.erl b/lib/ssh/src/ssh_transport.erl index 25c64a4f25..412f5de9de 100644 --- a/lib/ssh/src/ssh_transport.erl +++ b/lib/ssh/src/ssh_transport.erl @@ -92,10 +92,7 @@ default_algorithms(cipher) -> default_algorithms(mac) -> supported_algorithms(mac, same(['AEAD_AES_128_GCM', 'AEAD_AES_256_GCM'])); -default_algorithms(public_key) -> - supported_algorithms(public_key, ['rsa-sha2-256', - 'rsa-sha2-384', - 'rsa-sha2-512']); + default_algorithms(Alg) -> supported_algorithms(Alg, []). @@ -122,10 +119,9 @@ supported_algorithms(public_key) -> {'ecdsa-sha2-nistp384', [{public_keys,ecdsa}, {hashs,sha384}, {ec_curve,secp384r1}]}, {'ecdsa-sha2-nistp521', [{public_keys,ecdsa}, {hashs,sha512}, {ec_curve,secp521r1}]}, {'ecdsa-sha2-nistp256', [{public_keys,ecdsa}, {hashs,sha256}, {ec_curve,secp256r1}]}, + {'ssh-rsa', [{public_keys,rsa}, {hashs,sha} ]}, {'rsa-sha2-256', [{public_keys,rsa}, {hashs,sha256} ]}, - {'rsa-sha2-384', [{public_keys,rsa}, {hashs,sha384} ]}, {'rsa-sha2-512', [{public_keys,rsa}, {hashs,sha512} ]}, - {'ssh-rsa', [{public_keys,rsa}, {hashs,sha} ]}, {'ssh-dss', [{public_keys,dss}, {hashs,sha} ]} % Gone in OpenSSH 7.3.p1 ]); @@ -724,14 +720,28 @@ 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) -> + send_ext_info=true, + opts = Opts} = Ssh0) -> AlgsList = lists:map(fun erlang:atom_to_list/1, - ssh_transport:default_algorithms(public_key)), + proplists:get_value(public_key, + ?GET_OPT(preferred_algorithms, Opts))), Msg = #ssh_msg_ext_info{nr_extensions = 1, data = [{"server-sig-algs", string:join(AlgsList,",")}] }, @@ -766,16 +776,20 @@ extract_public_key(#'ECPrivateKey'{parameters = {namedCurve,OID}, {#'ECPoint'{point=Q}, {namedCurve,OID}}. -verify_host_key(#ssh{algorithms=Alg}=SSH, PublicKey, Digest, Signature) -> - case verify(Digest, sha(Alg#alg.hkey), Signature, PublicKey) of - false -> - {error, bad_signature}; - true -> - known_host_key(SSH, PublicKey, public_algo(PublicKey)) +verify_host_key(#ssh{algorithms=Alg}=SSH, PublicKey, Digest, {AlgStr,Signature}) -> + case atom_to_list(Alg#alg.hkey) of + AlgStr -> + case verify(Digest, sha(Alg#alg.hkey), Signature, PublicKey) of + false -> + {error, bad_signature}; + true -> + known_host_key(SSH, PublicKey, public_algo(PublicKey)) + end; + _ -> + {error, bad_signature_name} end. - accepted_host(Ssh, PeerName, Public, Opts) -> case ?GET_OPT(silently_accept_hosts, Opts) of |