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authorHans Nilsson <[email protected]>2018-02-15 15:46:27 +0100
committerHans Nilsson <[email protected]>2018-03-29 11:58:28 +0200
commit3352eaf189c55e60778fc76b94530fac0c314fba (patch)
tree8950c26f190c31c847ffa96cb54874281a8ecb48
parent221dc123b58da0952fb77ff13243ecc8b53f1ae4 (diff)
downloadotp-3352eaf189c55e60778fc76b94530fac0c314fba.tar.gz
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ssh: New ssh_dbg module
-rw-r--r--lib/ssh/src/Makefile2
-rw-r--r--lib/ssh/src/ssh.hrl9
-rw-r--r--lib/ssh/src/ssh_dbg.erl624
-rw-r--r--lib/ssh/src/ssh_dbg.hrl27
4 files changed, 272 insertions, 390 deletions
diff --git a/lib/ssh/src/Makefile b/lib/ssh/src/Makefile
index 9e8d80c71f..bcd13213b3 100644
--- a/lib/ssh/src/Makefile
+++ b/lib/ssh/src/Makefile
@@ -97,7 +97,7 @@ APP_TARGET= $(EBIN)/$(APP_FILE)
APPUP_SRC= $(APPUP_FILE).src
APPUP_TARGET= $(EBIN)/$(APPUP_FILE)
-INTERNAL_HRL_FILES = ssh_auth.hrl ssh_connect.hrl ssh_transport.hrl ssh.hrl ssh_userauth.hrl ssh_xfer.hrl ssh_dbg.hrl
+INTERNAL_HRL_FILES = ssh_auth.hrl ssh_connect.hrl ssh_transport.hrl ssh.hrl ssh_userauth.hrl ssh_xfer.hrl
# ----------------------------------------------------
# FLAGS
diff --git a/lib/ssh/src/ssh.hrl b/lib/ssh/src/ssh.hrl
index 1a2f003190..48af72210c 100644
--- a/lib/ssh/src/ssh.hrl
+++ b/lib/ssh/src/ssh.hrl
@@ -246,4 +246,13 @@
_ -> exit(Reason)
end).
+
+%% dbg help macros
+-define(wr_record(N,BlackList),
+ wr_record(R=#N{}) -> ssh_dbg:wr_record(R, record_info(fields,N), BlackList)
+ ).
+
+-define(wr_record(N), ?wr_record(N, [])).
+
+
-endif. % SSH_HRL defined
diff --git a/lib/ssh/src/ssh_dbg.erl b/lib/ssh/src/ssh_dbg.erl
index eb2c2848f3..2ee4237e05 100644
--- a/lib/ssh/src/ssh_dbg.erl
+++ b/lib/ssh/src/ssh_dbg.erl
@@ -20,339 +20,110 @@
%%
+%%% Purpose:
+%%% This module implements support for using the Erlang trace in a simple way for ssh
+%%% debugging.
+%%%
+%%% Begin the session with ssh_dbg:start(). This will do a dbg:start() if needed and
+%%% then dbg:p/2 to set some flags.
+%%%
+%%% Next select trace points to activate: for example plain text printouts of messages
+%%% sent or received. This is switched on and off with ssh_dbg:on(TracePoint(s)) and
+%%% ssh_dbg:off(TracePoint(s)). For example:
+%%%
+%%% ssh_dbg:on(messages) -- switch on printing plain text messages
+%%% ssh_dbg:on([alg,terminate]) -- switch on printing info about algorithm negotiation
+%%% ssh_dbg:on() -- switch on all ssh debugging
+%%%
+%%% To switch, use the off/0 or off/1 function in the same way, for example:
+%%%
+%%% ssh_dbg:off(alg) -- switch off algorithm negotiation tracing, but keep all other
+%%% ssh_dbg:off() -- switch off all ssh debugging
+%%%
+%%% Present the trace result with some other method than the default io:format/2:
+%%% ssh_dbg:start(fun(Format,Args) ->
+%%% my_special( io_lib:format(Format,Args) )
+%%% end)
+%%%
+
-module(ssh_dbg).
--export([messages/0, messages/1, messages/2, messages/3,
- auth/0, auth/1, auth/2, auth/3,
- algs/0, algs/1, algs/2, algs/3,
- hostkey/0, hostkey/1, hostkey/2, hostkey/3,
- stop/0
+-export([start/0, start/1,
+ stop/0,
+ start_server/0,
+ start_tracer/0, start_tracer/1,
+ on/1, on/0,
+ off/1, off/0,
+ go_on/0
]).
-export([shrink_bin/1,
- wr_record/3]).
+ reduce_state/1,
+ wr_record/3]).
+
+-export([init/1, handle_call/3, handle_cast/2, handle_info/2]).
-include("ssh.hrl").
-include("ssh_transport.hrl").
-include("ssh_connect.hrl").
-include("ssh_auth.hrl").
-%%%================================================================
-messages() -> start(msg).
-messages(F) -> start(msg,F).
-messages(F,X) -> start(msg,F,X).
-messages(F,M,I) -> start(msg,F,M,I).
-
-auth() -> start(auth).
-auth(F) -> start(auth,F).
-auth(F,X) -> start(auth,F,X).
-auth(F,M,I) -> start(auth,F,M,I).
-
-algs() -> start(algs).
-algs(F) -> start(algs,F).
-algs(F,X) -> start(algs,F,X).
-algs(F,M,I) -> start(algs,F,M,I).
-
-hostkey() -> start(hostkey).
-hostkey(F) -> start(hostkey,F).
-hostkey(F,X) -> start(hostkey,F,X).
-hostkey(F,M,I) -> start(hostkey,F,M,I).
-
-stop() -> dbg:stop().
-
-%%%----------------------------------------------------------------
-start(Type) -> start(Type, fun io:format/2).
+-behaviour(gen_server).
+-define(SERVER, ?MODULE).
-start(Type, F) when is_function(F,2) -> start(Type, fmt_fun(F));
-start(Type, F) when is_function(F,3) -> start(Type, F, id_fun()).
-
-start(Type, WriteFun, MangleArgFun) when is_function(WriteFun, 3),
- is_function(MangleArgFun, 1) ->
- start(Type, WriteFun, MangleArgFun, []);
-start(Type, WriteFun, InitValue) ->
- start(Type, WriteFun, id_fun(), InitValue).
+%%%================================================================
-start(Type, WriteFun, MangleArgFun, InitValue) when is_function(WriteFun, 3),
- is_function(MangleArgFun, 1) ->
- cond_start(Type, WriteFun, MangleArgFun, InitValue),
- dbg_ssh(Type).
+-define(ALL_DBG_TYPES, get_all_dbg_types()).
-%%%----------------------------------------------------------------
-fmt_fun(F) -> fun(Fmt,Args,Data) -> F(Fmt,Args), Data end.
+start() -> start(fun io:format/2).
-id_fun() -> fun(X) -> X end.
+start(IoFmtFun) when is_function(IoFmtFun,2) ; is_function(IoFmtFun,3) ->
+ start_server(),
+ catch dbg:start(),
+ start_tracer(IoFmtFun),
+ dbg:p(all, get_all_trace_flags()),
+ ?ALL_DBG_TYPES.
-%%%----------------------------------------------------------------
-dbg_ssh(What) ->
- case [E || E <- lists:flatten(dbg_ssh0(What)),
- element(1,E) =/= ok] of
- [] -> ok;
- Other -> Other
- end.
-
-
-dbg_ssh0(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:map(fun(F) -> dbg:tp(ssh_auth, F, x) end,
- [publickey_msg, password_msg, keyboard_interactive_msg])
- ];
-
-dbg_ssh0(algs) ->
- [dbg:tpl(ssh_transport,select_algorithm,4, x),
- dbg:tpl(ssh_connection_handler,ext_info,2, x)
- ];
-
-dbg_ssh0(hostkey) ->
- [dbg:tpl(ssh_transport, verify_host_key, 4, x),
- dbg:tp(ssh_transport, verify, 4, x),
- dbg:tpl(ssh_transport, known_host_key, 3, x),
-%% dbg:tpl(ssh_transport, accepted_host, 4, x),
- dbg:tpl(ssh_transport, add_host_key, 4, x),
- dbg:tpl(ssh_transport, is_host_key, 5, x)
- ];
-
-dbg_ssh0(msg) ->
- [dbg_ssh0(hostkey),
- dbg_ssh0(auth),
- 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:tpl(ssh_connection_handler,ext_info,2, x)
- ].
-
-
-%%%================================================================
-cond_start(Type, WriteFun, MangleArgFun, Init) ->
+stop() ->
try
- dbg:start(),
- setup_tracer(Type, WriteFun, MangleArgFun, Init),
- dbg:p(new,[c,timestamp])
+ dbg:stop_clear(),
+ gen_server:stop(?SERVER)
catch
_:_ -> ok
end.
+start_server() ->
+ gen_server:start({local,?SERVER}, ?MODULE, [], []).
+
-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(msg, {trace_ts,_Pid,return_from,{ssh_message,encode,1},_Res,_TS}, D) ->
- D;
-
-msg_formater(msg, {trace_ts,_Pid,call,{ssh_message,decode,_},_TS}, D) ->
- D;
-msg_formater(msg, {trace_ts,Pid,return_from,{ssh_message,decode,1},Msg,TS}, D) ->
- Extra =
- case Msg of
- #ssh_msg_userauth_info_request{data = D0} ->
- try ssh_message:decode_keyboard_interactive_prompts(D0, [])
- of
- Acc ->
- io_lib:format(" -- decoded data:~n", []) ++
- element(1,
- lists:mapfoldl(
- fun({Prompt,Echo}, N) ->
- {io_lib:format(" prompt[~p]: \"~s\" (echo=~p)~n",[N,Prompt,Echo]), N+1}
- end, 1, Acc))
- catch
- _:_ ->
- ""
- end;
- _ ->
- ""
+start_tracer() -> start_tracer(fun io:format/2).
+
+start_tracer(WriteFun) when is_function(WriteFun,2) ->
+ start_tracer(fun(F,A,S) -> WriteFun(F,A), S end);
+start_tracer(WriteFun) when is_function(WriteFun,3) ->
+ start_tracer(WriteFun, undefined).
+
+
+start_tracer(WriteFun, InitAcc) when is_function(WriteFun, 3) ->
+ Handler =
+ fun(Arg, Acc0) ->
+ try_all_types_in_all_modules(gen_server:call(?SERVER, get_on),
+ Arg, WriteFun,
+ Acc0)
end,
- fmt("~n~s ~p RECV ~s~s~n", [ts(TS),Pid,wr_record(shrink_bin(Msg)),Extra], 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) ->
- 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) ->
- 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) ->
- 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) ->
- 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 and can use~n ~p~n",
- [ts(TS),Pid,string:tokens(SigAlgs,","),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_transport,verify_host_key,[_Ssh,_PK,_Dgst,{AlgStr,_Sign}]},TS}, D) ->
- fmt("~n~s ~p Client got a ~s hostkey. Will try to verify it~n", [ts(TS),Pid,AlgStr], D);
-msg_formater(_, {trace_ts,Pid,return_from, {ssh_transport,verify_host_key,4}, Result, TS}, D) ->
- case Result of
- ok -> fmt("~n~s ~p Hostkey verified.~n", [ts(TS),Pid], D);
- {error,E} ->
- fmt("~n~s ~p ***** Hostkey NOT verified: ~p ******!~n", [ts(TS),Pid,E], D);
- _ -> fmt("~n~s ~p ***** Hostkey is NOT verified: ~p ******!~n", [ts(TS),Pid,Result], D)
- end;
-
-msg_formater(_, {trace_ts,Pid,return_from, {ssh_transport,verify,4}, Result, TS}, D) ->
- case Result of
- true -> D;
- _ -> fmt("~n~s ~p Couldn't verify the signature!~n", [ts(TS),Pid], D)
- end;
-
-msg_formater(_, {trace_ts,_Pid,call, {ssh_transport,is_host_key,_}, _TS}, D) -> D;
-msg_formater(_, {trace_ts,Pid,return_from, {ssh_transport,is_host_key,5}, {CbMod,Result}, TS}, D) ->
- case Result of
- true -> fmt("~n~s ~p Hostkey found by ~p.~n", [ts(TS),Pid,CbMod], D);
- _ -> fmt("~n~s ~p Hostkey NOT found by ~p.~n", [ts(TS),Pid,CbMod], D)
- end;
-
-msg_formater(_, {trace_ts,_Pid,call, {ssh_transport,add_host_key,_}, _TS}, D) -> D;
-msg_formater(_, {trace_ts,Pid,return_from, {ssh_transport,add_host_key,4}, {CbMod,Result}, TS}, D) ->
- case Result of
- ok -> fmt("~n~s ~p New hostkey added by ~p.~n", [ts(TS),Pid,CbMod], D);
- _ -> D
- end;
-
-msg_formater(_, {trace_ts,_Pid,call,{ssh_transport,known_host_key,_},_TS}, D) -> D;
-msg_formater(_, {trace_ts,Pid,return_from, {ssh_transport,known_host_key,3}, Result, TS}, D) ->
- case Result of
- ok -> D;
- {error,E} -> fmt("~n~s ~p Hostkey addition failed: ~p~n", [ts(TS),Pid,E], D);
- _ -> fmt("~n~s ~p Hostkey addition: ~p~n", [ts(TS),Pid,Result], 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 method: 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 use that kind of public key~n", [ts(TS),Pid,User], D);
-msg_formater(_, {trace_ts,_Pid,return_from,{ssh_auth,publickey_msg,1},_,_TS}, D) -> 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 method: 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 use method password as login method~n", [ts(TS),Pid,User], D);
-msg_formater(_, {trace_ts,_Pid,return_from,{ssh_auth,password_msg,1},_Result,_TS}, D) -> 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 method: keyboard-interactive~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 use method keyboard-interactive as login method~n", [ts(TS),Pid,User], D);
-msg_formater(_, {trace_ts,_Pid,return_from,{ssh_auth,keyboard_interactive_msg,1},_Result,_TS}, D) -> 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(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(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(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(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 other ~n~p~n", [shrink_bin(_M)], D),
- D.
+ dbg:tracer(process, {Handler,InitAcc}).
%%%----------------------------------------------------------------
--record(data, {writer,
- initialized,
- acc}).
-
-fmt(Fmt, Args, D=#data{initialized=false}) ->
- fmt(Fmt, Args,
- D#data{acc = (D#data.writer)("~s~n", [initial_info()], D#data.acc),
- initialized = true}
- );
-fmt(Fmt, Args, D=#data{writer=Write, acc=Acc}) ->
- D#data{acc = Write(Fmt,Args,Acc)}.
-
-ts({_,_,Usec}=Now) ->
- {_Date,{HH,MM,SS}} = calendar:now_to_local_time(Now),
- io_lib:format("~.2.0w:~.2.0w:~.2.0w.~.6.0w",[HH,MM,SS,Usec]);
-ts(_) ->
- "-".
+on() -> on(?ALL_DBG_TYPES).
+on(Type) -> switch(on, Type).
-setup_tracer(Type, WriteFun, MangleArgFun, Init) ->
- Handler = fun(Arg, D) ->
- msg_formater(Type, MangleArgFun(Arg), D)
- end,
- InitialData = #data{writer = WriteFun,
- initialized = false,
- acc = Init},
- {ok,_} = dbg:tracer(process, {Handler, InitialData}),
- ok.
-
-
-initial_info() ->
- Lines =
- [ts(erlang:timestamp()),
- "",
- "SSH:"]
- ++ as_list_of_lines(case application:get_key(ssh,vsn) of
- {ok,Vsn} -> Vsn;
- _ -> "(ssh not started)"
- end)
- ++ ["",
- "Cryptolib:"]
- ++ as_list_of_lines(crypto:info_lib())
- ++ ["",
- "Crypto app:"]
- ++ as_list_of_lines(crypto:supports()),
- W = max_len(Lines),
- append_lines([line_of($*, W+4)]
- ++ prepend_lines("* ", Lines)
- ++ [line_of($-, W+4)],
- io_lib:nl()
- ).
-
+
+off() -> off(?ALL_DBG_TYPES). % A bit overkill...
+off(Type) -> switch(off, Type).
-as_list_of_lines(Term) ->
- prepend_lines(" ",
- string:tokens(lists:flatten(io_lib:format("~p",[Term])),
- io_lib:nl() % Get line endings in current OS
- )
- ).
-
-line_of(Char,W) -> lists:duplicate(W,Char).
-max_len(L) -> lists:max([length(S) || S<-L]).
-append_lines(L, X) -> [S++X || S<-L].
-prepend_lines(X, L) -> [X++S || S<-L].
+go_on() ->
+ IsOn = gen_server:call(?SERVER, get_on),
+ on(IsOn).
%%%----------------------------------------------------------------
shrink_bin(B) when is_binary(B), size(B)>256 -> {'*** SHRINKED BIN',
@@ -365,69 +136,198 @@ shrink_bin(L) when is_list(L) -> lists:map(fun shrink_bin/1, L);
shrink_bin(T) when is_tuple(T) -> list_to_tuple(shrink_bin(tuple_to_list(T)));
shrink_bin(X) -> X.
+%%%----------------------------------------------------------------
+%% Replace last element (the state) with "#<state-name>{}"
+reduce_state(T) ->
+ try
+ erlang:setelement(size(T),
+ T,
+ lists:concat(['#',element(1,element(size(T),T)),'{}'])
+ )
+ catch
+ _:_ ->
+ T
+ end.
+
+%%%================================================================
+-record(data, {
+ types_on = []
+ }).
+
+%%%----------------------------------------------------------------
+init(_) ->
+ {ok, #data{}}.
+
+%%%----------------------------------------------------------------
+handle_call({switch,on,Types}, _From, D) ->
+ NowOn = lists:usort(Types ++ D#data.types_on),
+ call_modules(on, Types, NowOn),
+ {reply, {ok,NowOn}, D#data{types_on = NowOn}};
+
+handle_call({switch,off,Types}, _From, D) ->
+ StillOn = D#data.types_on -- Types,
+ call_modules(off, Types, StillOn),
+ call_modules(on, StillOn, StillOn),
+ {reply, {ok,StillOn}, D#data{types_on = StillOn}};
+
+handle_call(get_on, _From, D) ->
+ {reply, D#data.types_on, D};
+
+handle_call(C, _From, D) ->
+ io:format('*** Unknown call: ~p~n',[C]),
+ {reply, {error,{unknown_call,C}}, D}.
+
+
+handle_cast(C, D) ->
+ io:format('*** Unknown cast: ~p~n',[C]),
+ {noreply, D}.
+
+handle_info(C, D) ->
+ io:format('*** Unknown info: ~p~n',[C]),
+ {noreply, D}.
+
+
+%%%================================================================
+
+%%%----------------------------------------------------------------
+ssh_modules_with_trace() ->
+ {ok,AllSshModules} = application:get_key(ssh, modules),
+ [M || M <- AllSshModules,
+ lists:member({dbg_trace,3}, M:module_info(exports))].
+
%%%----------------------------------------------------------------
--define(wr_record(N,BlackList), wr_record(R=#N{}) -> wr_record(R, record_info(fields,N), BlackList)).
-
--define(wr_record(N), ?wr_record(N, [])).
-
-
-?wr_record(alg);
-
-?wr_record(ssh_msg_disconnect);
-?wr_record(ssh_msg_ignore);
-?wr_record(ssh_msg_unimplemented);
-?wr_record(ssh_msg_debug);
-?wr_record(ssh_msg_service_request);
-?wr_record(ssh_msg_service_accept);
-?wr_record(ssh_msg_kexinit);
-?wr_record(ssh_msg_kexdh_init);
-?wr_record(ssh_msg_kexdh_reply);
-?wr_record(ssh_msg_newkeys);
-?wr_record(ssh_msg_ext_info);
-?wr_record(ssh_msg_kex_dh_gex_request);
-?wr_record(ssh_msg_kex_dh_gex_request_old);
-?wr_record(ssh_msg_kex_dh_gex_group);
-?wr_record(ssh_msg_kex_dh_gex_init);
-?wr_record(ssh_msg_kex_dh_gex_reply);
-?wr_record(ssh_msg_kex_ecdh_init);
-?wr_record(ssh_msg_kex_ecdh_reply);
-
-?wr_record(ssh_msg_userauth_request);
-?wr_record(ssh_msg_userauth_failure);
-?wr_record(ssh_msg_userauth_success);
-?wr_record(ssh_msg_userauth_banner);
-?wr_record(ssh_msg_userauth_passwd_changereq);
-?wr_record(ssh_msg_userauth_pk_ok);
-?wr_record(ssh_msg_userauth_info_request);
-?wr_record(ssh_msg_userauth_info_response);
-
-?wr_record(ssh_msg_global_request);
-?wr_record(ssh_msg_request_success);
-?wr_record(ssh_msg_request_failure);
-?wr_record(ssh_msg_channel_open);
-?wr_record(ssh_msg_channel_open_confirmation);
-?wr_record(ssh_msg_channel_open_failure);
-?wr_record(ssh_msg_channel_window_adjust);
-?wr_record(ssh_msg_channel_data);
-?wr_record(ssh_msg_channel_extended_data);
-?wr_record(ssh_msg_channel_eof);
-?wr_record(ssh_msg_channel_close);
-?wr_record(ssh_msg_channel_request);
-?wr_record(ssh_msg_channel_success);
-?wr_record(ssh_msg_channel_failure);
-
-wr_record(R) -> io_lib:format('~p~n',[R]).
+get_all_trace_flags() ->
+ get_all_trace_flags(ssh_modules_with_trace()).
+get_all_trace_flags(Modules) ->
+ lists:usort(
+ lists:flatten(
+ lists:foldl(
+ fun(Type, Acc) ->
+ call_modules(flags, Type, undefined, Acc, Modules)
+ end, [timestamp], ?ALL_DBG_TYPES))).
+%%%----------------------------------------------------------------
+get_all_dbg_types() ->
+ lists:usort(
+ lists:flatten(
+ call_modules(points, undefined) )).
+
+%%%----------------------------------------------------------------
+call_modules(Cmnd, Type) ->
+ call_modules(Cmnd, Type, undefined).
+
+call_modules(Cmnd, Type, Arg) ->
+ call_modules(Cmnd, Type, Arg, []).
+
+call_modules(Cmnd, Type, Arg, Acc0) ->
+ call_modules(Cmnd, Type, Arg, Acc0, ssh_modules_with_trace()).
+
+call_modules(Cmnd, Types, Arg, Acc0, Modules) when is_list(Types) ->
+ lists:foldl(
+ fun(Type, Acc) ->
+ call_modules(Cmnd, Type, Arg, Acc, Modules)
+ end, Acc0, Types);
+
+call_modules(Cmnd, Type, Arg, Acc0, Modules) ->
+ lists:foldl(
+ fun(Mod, Acc) ->
+ try Mod:dbg_trace(Cmnd, Type, Arg)
+ of
+ Result -> [Result|Acc]
+ catch
+ _:_ -> Acc
+ end
+ end, Acc0, Modules).
+
+%%%----------------------------------------------------------------
+switch(X, Type) when is_atom(Type) ->
+ switch(X, [Type]);
+
+switch(X, Types) when is_list(Types) ->
+ case whereis(?SERVER) of
+ undefined ->
+ start();
+ _ ->
+ ok
+ end,
+ case lists:usort(Types) -- ?ALL_DBG_TYPES of
+ [] ->
+ gen_server:call(?SERVER, {switch,X,Types});
+ L ->
+ {error, {unknown, L}}
+ end.
+
+%%%----------------------------------------------------------------
+%%% Format of trace messages are described in reference manual for erlang:trace/4
+%%% {call,MFA}
+%%% {return_from,{M,F,N},Result}
+%%% {send,Msg,To}
+%%% {'receive',Msg}
+
+trace_pid({trace,Pid,_}) -> Pid;
+trace_pid({trace,Pid,_,_}) -> Pid;
+trace_pid({trace,Pid,_,_,_}) -> Pid;
+trace_pid({trace,Pid,_,_,_,_}) -> Pid;
+trace_pid({trace,Pid,_,_,_,_,_}) -> Pid;
+trace_pid({trace_ts,Pid,_,_TS}) -> Pid;
+trace_pid({trace_ts,Pid,_,_,_TS}) -> Pid;
+trace_pid({trace_ts,Pid,_,_,_,_TS}) -> Pid;
+trace_pid({trace_ts,Pid,_,_,_,_,_TS}) -> Pid;
+trace_pid({trace_ts,Pid,_,_,_,_,_,_TS}) -> Pid.
+
+trace_ts({trace_ts,_Pid,_,TS}) -> ts(TS);
+trace_ts({trace_ts,_Pid,_,_,TS}) -> ts(TS);
+trace_ts({trace_ts,_Pid,_,_,_,TS}) -> ts(TS);
+trace_ts({trace_ts,_Pid,_,_,_,_,TS}) -> ts(TS);
+trace_ts({trace_ts,_Pid,_,_,_,_,_,TS}) -> ts(TS);
+trace_ts(_) -> "-".
+
+trace_info({trace,_Pid,A}) -> A;
+trace_info({trace,_Pid,A,B}) -> {A,B};
+trace_info({trace,_Pid,A,B,C}) -> {A,B,C};
+trace_info({trace,_Pid,A,B,C,D}) -> {A,B,C,D};
+trace_info({trace,_Pid,A,B,C,D,E}) -> {A,B,C,D,E};
+trace_info({trace_ts,_Pid,A,_TS}) -> A;
+trace_info({trace_ts,_Pid,A,B,_TS}) -> {A,B};
+trace_info({trace_ts,_Pid,A,B,C,_TS}) -> {A,B,C};
+trace_info({trace_ts,_Pid,A,B,C,D,_TS}) -> {A,B,C,D};
+trace_info({trace_ts,_Pid,A,B,C,D,E,_TS}) -> {A,B,C,D,E}.
+
+
+try_all_types_in_all_modules(TypesOn, Arg, WriteFun, Acc0) ->
+ SshModules = ssh_modules_with_trace(),
+ TS = trace_ts(Arg),
+ PID = trace_pid(Arg),
+ INFO = trace_info(Arg),
+ lists:foldl(
+ fun(Type, Acc1) ->
+ lists:foldl(
+ fun(SshMod,Acc) ->
+ try WriteFun("~n~s ~p ~s~n",
+ [lists:flatten(TS), PID, lists:flatten(SshMod:dbg_trace(format,Type,INFO))],
+ Acc)
+ catch
+ _:_ -> Acc
+ end
+ end, Acc1, SshModules)
+ end, Acc0, TypesOn).
+
+%%%----------------------------------------------------------------
wr_record(T, Fs, BL) when is_tuple(T) ->
wr_record(tuple_to_list(T), Fs, BL);
-wr_record([Name|Values], Fields, BlackL) ->
+wr_record([_Name|Values], Fields, BlackL) ->
W = case Fields of
[] -> 0;
_ -> lists:max([length(atom_to_list(F)) || F<-Fields])
end,
- [io_lib:format("~p:~n",[string:to_upper(atom_to_list(Name))])
- | [io_lib:format(" ~*p: ~p~n",[W,Tag,Value]) || {Tag,Value} <- lists:zip(Fields,Values),
- not lists:member(Tag,BlackL)
- ]
+ [io_lib:format(" ~*p: ~p~n",[W,Tag,Value]) || {Tag,Value} <- lists:zip(Fields,Values),
+ not lists:member(Tag,BlackL)
].
+
+%%%----------------------------------------------------------------
+ts({_,_,Usec}=Now) when is_integer(Usec) ->
+ {_Date,{HH,MM,SS}} = calendar:now_to_local_time(Now),
+ io_lib:format("~.2.0w:~.2.0w:~.2.0w.~.6.0w",[HH,MM,SS,Usec]);
+ts(_) ->
+ "-".
diff --git a/lib/ssh/src/ssh_dbg.hrl b/lib/ssh/src/ssh_dbg.hrl
deleted file mode 100644
index e94664737b..0000000000
--- a/lib/ssh/src/ssh_dbg.hrl
+++ /dev/null
@@ -1,27 +0,0 @@
-%%
-%% %CopyrightBegin%
-%%
-%% Copyright Ericsson AB 2004-2016. All Rights Reserved.
-%%
-%% Licensed under the Apache License, Version 2.0 (the "License");
-%% you may not use this file except in compliance with the License.
-%% You may obtain a copy of the License at
-%%
-%% http://www.apache.org/licenses/LICENSE-2.0
-%%
-%% Unless required by applicable law or agreed to in writing, software
-%% distributed under the License is distributed on an "AS IS" BASIS,
-%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-%% See the License for the specific language governing permissions and
-%% limitations under the License.
-%%
-%% %CopyrightEnd%
-%%
-
--ifndef(SSH_DBG_HRL).
--define(SSH_DBG_HRL, 1).
-
--define(formatrec(RecName,R),
- ssh_dbg:wr_record(R, record_info(fields,RecName), [])).
-
--endif. % SSH_DBG_HRL defined