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Diffstat (limited to 'lib/ssh/src/ssh_info.erl')
| -rw-r--r-- | lib/ssh/src/ssh_info.erl | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/lib/ssh/src/ssh_info.erl b/lib/ssh/src/ssh_info.erl new file mode 100644 index 0000000000..9ed598b3ab --- /dev/null +++ b/lib/ssh/src/ssh_info.erl @@ -0,0 +1,193 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2008-2014. 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% +%% + +%% +%%---------------------------------------------------------------------- +%% Purpose: Print some info of a running ssh aplication. +%%---------------------------------------------------------------------- + +-module(ssh_info). + +-compile(export_all). + +print() -> + try supervisor:which_children(ssh_sup) + of + _ -> + io:nl(), + print_general(), + io:nl(), + underline("Client part", $=), + print_clients(), + io:nl(), + underline("Server part", $=), + print_servers(), + io:nl(), + %% case os:type() of + %% {unix,_} -> + %% io:nl(), + %% underline("Linux part", $=), + %% underline("Listening"), + %% catch io:format(os:cmd("netstat -tpln")), + %% io:nl(), + %% underline("Other"), + %% catch io:format(os:cmd("netstat -tpn")); + %% _ -> ok + %% end, + underline("Supervisors", $=), + walk_sups(ssh_sup), + io:nl() + catch + _:_ -> + io:format("Ssh not found~n",[]) + end. + +%%%================================================================ +print_general() -> + {_Name, Slogan, Ver} = lists:keyfind(ssh,1,application:which_applications()), + underline(io_lib:format("~s ~s", [Slogan, Ver]), $=), + io:format('This printout is generated ~s. ~n',[datetime()]). + +%%%================================================================ +print_clients() -> + try + lists:foreach(fun print_client/1, supervisor:which_children(sshc_sup)) + catch + C:E -> + io:format('***FAILED: ~p:~p~n',[C,E]) + end. + +print_client({undefined,Pid,supervisor,[ssh_connection_handler]}) -> + {{Local,Remote},_Str} = ssh_connection_handler:get_print_info(Pid), + io:format(" Local=~s Remote=~s~n",[fmt_host_port(Local),fmt_host_port(Remote)]); +print_client(Other) -> + io:format(" [[Other 1: ~p]]~n",[Other]). + + +%%%================================================================ +print_servers() -> + try + lists:foreach(fun print_server/1, supervisor:which_children(sshd_sup)) + catch + C:E -> + io:format('***FAILED: ~p:~p~n',[C,E]) + end. + +print_server({{server,ssh_system_sup,LocalHost,LocalPort},Pid,supervisor,[ssh_system_sup]}) when is_pid(Pid) -> + io:format('Local=~s (~p children)~n',[fmt_host_port({LocalHost,LocalPort}), + ssh_acceptor:number_of_connections(Pid)]), + lists:foreach(fun print_system_sup/1, supervisor:which_children(Pid)); +print_server(Other) -> + io:format(" [[Other 2: ~p]]~n",[Other]). + +print_system_sup({Ref,Pid,supervisor,[ssh_subsystem_sup]}) when is_reference(Ref), + is_pid(Pid) -> + lists:foreach(fun print_channels/1, supervisor:which_children(Pid)); +print_system_sup({{ssh_acceptor_sup,LocalHost,LocalPort}, Pid,supervisor, [ssh_acceptor_sup]}) when is_pid(Pid) -> + io:format(" [Acceptor for ~s]~n",[fmt_host_port({LocalHost,LocalPort})]); +print_system_sup(Other) -> + io:format(" [[Other 3: ~p]]~n",[Other]). + +print_channels({{server,ssh_channel_sup,_,_},Pid,supervisor,[ssh_channel_sup]}) when is_pid(Pid) -> + lists:foreach(fun print_channel/1, supervisor:which_children(Pid)); +print_channels(Other) -> + io:format(" [[Other 4: ~p]]~n",[Other]). + + +print_channel({Ref,Pid,worker,[ssh_channel]}) when is_reference(Ref), + is_pid(Pid) -> + {{ConnManager,ChannelID}, Str} = ssh_channel:get_print_info(Pid), + {{Local,Remote},StrM} = ssh_connection_handler:get_print_info(ConnManager), + io:format(' ch ~p: ~s ~s',[ChannelID, StrM, Str]), + io:format(" Local=~s Remote=~s~n",[fmt_host_port(Local),fmt_host_port(Remote)]); +print_channel(Other) -> + io:format(" [[Other 5: ~p]]~n",[Other]). + +%%%================================================================ +-define(inc(N), (N+4)). + +walk_sups(StartPid) -> + io:format("Start at ~p, ~s.~n",[StartPid,dead_or_alive(StartPid)]), + walk_sups(children(StartPid), _Indent=?inc(0)). + +walk_sups([H={_,Pid,SupOrWorker,_}|T], Indent) -> + indent(Indent), io:format('~200p ~p is ~s~n',[H,Pid,dead_or_alive(Pid)]), + case SupOrWorker of + supervisor -> walk_sups(children(Pid), ?inc(Indent)); + _ -> ok + end, + walk_sups(T, Indent); +walk_sups([], _) -> + ok. + +dead_or_alive(Name) when is_atom(Name) -> + case whereis(Name) of + undefined -> + "**UNDEFINED**"; + Pid -> + dead_or_alive(Pid) + end; +dead_or_alive(Pid) when is_pid(Pid) -> + case process_info(Pid) of + undefined -> "**DEAD**"; + _ -> "alive" + end. + +indent(I) -> io:format('~*c',[I,$ ]). + +children(Pid) -> + Parent = self(), + Helper = spawn(fun() -> + Parent ! {self(),supervisor:which_children(Pid)} + end), + receive + {Helper,L} when is_list(L) -> + L + after + 2000 -> + catch exit(Helper, kill), + [] + end. + +%%%================================================================ +underline(Str) -> + underline(Str, $-). + +underline(Str, LineChar) -> + Len = lists:flatlength(Str), + io:format('~s~n',[Str]), + line(Len,LineChar). + +line(Len, Char) -> + io:format('~*c~n', [Len,Char]). + + +datetime() -> + {{YYYY,MM,DD}, {H,M,S}} = calendar:now_to_universal_time(now()), + lists:flatten(io_lib:format('~4w-~2..0w-~2..0w ~2..0w:~2..0w:~2..0w UTC',[YYYY,MM,DD, H,M,S])). + + +fmt_host_port({{A,B,C,D},Port}) -> io_lib:format('~p.~p.~p.~p:~p',[A,B,C,D,Port]); +fmt_host_port({Host,Port}) -> io_lib:format('~s:~p',[Host,Port]). + + + +nyi() -> + io:format('Not yet implemented~n',[]), + nyi. |