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-rw-r--r--lib/ssl/src/ssl_tls_dist_proxy.erl114
1 files changed, 91 insertions, 23 deletions
diff --git a/lib/ssl/src/ssl_tls_dist_proxy.erl b/lib/ssl/src/ssl_tls_dist_proxy.erl
index 1f48ce9e8c..3edd352891 100644
--- a/lib/ssl/src/ssl_tls_dist_proxy.erl
+++ b/lib/ssl/src/ssl_tls_dist_proxy.erl
@@ -3,16 +3,17 @@
%%
%% Copyright Ericsson AB 2011-2013. 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/.
+%% 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
%%
-%% 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.
+%% 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%
%%
@@ -47,6 +48,47 @@ accept(Listen) ->
connect(Ip, Port) ->
gen_server:call(?MODULE, {connect, Ip, Port}, infinity).
+
+do_listen(Options) ->
+ {First,Last} = case application:get_env(kernel,inet_dist_listen_min) of
+ {ok,N} when is_integer(N) ->
+ case application:get_env(kernel,
+ inet_dist_listen_max) of
+ {ok,M} when is_integer(M) ->
+ {N,M};
+ _ ->
+ {N,N}
+ end;
+ _ ->
+ {0,0}
+ end,
+ do_listen(First, Last, listen_options([{backlog,128}|Options])).
+
+do_listen(First,Last,_) when First > Last ->
+ {error,eaddrinuse};
+do_listen(First,Last,Options) ->
+ case gen_tcp:listen(First, Options) of
+ {error, eaddrinuse} ->
+ do_listen(First+1,Last,Options);
+ Other ->
+ Other
+ end.
+
+listen_options(Opts0) ->
+ Opts1 =
+ case application:get_env(kernel, inet_dist_use_interface) of
+ {ok, Ip} ->
+ [{ip, Ip} | Opts0];
+ _ ->
+ Opts0
+ end,
+ case application:get_env(kernel, inet_dist_listen_options) of
+ {ok,ListenOpts} ->
+ ListenOpts ++ Opts1;
+ _ ->
+ Opts1
+ end.
+
%%====================================================================
%% gen_server callbacks
%%====================================================================
@@ -61,13 +103,17 @@ init([]) ->
handle_call({listen, Name}, _From, State) ->
case gen_tcp:listen(0, [{active, false}, {packet,?PPRE}]) of
{ok, Socket} ->
- {ok, World} = gen_tcp:listen(0, [{active, false}, binary, {packet,?PPRE}]),
+ {ok, World} = do_listen([{active, false}, binary, {packet,?PPRE}, {reuseaddr, true}]),
{ok, TcpAddress} = get_tcp_address(Socket),
{ok, WorldTcpAddress} = get_tcp_address(World),
{_,Port} = WorldTcpAddress#net_address.address,
- {ok, Creation} = erl_epmd:register_node(Name, Port),
- {reply, {ok, {Socket, TcpAddress, Creation}},
- State#state{listen={Socket, World}}};
+ case erl_epmd:register_node(Name, Port) of
+ {ok, Creation} ->
+ {reply, {ok, {Socket, TcpAddress, Creation}},
+ State#state{listen={Socket, World}}};
+ {error, _} = Error ->
+ {reply, Error, State}
+ end;
Error ->
{reply, Error, State}
end;
@@ -133,6 +179,7 @@ accept_loop(Proxy, erts = Type, Listen, Extra) ->
Extra ! {accept,self(),Socket,inet,proxy},
receive
{_Kernel, controller, Pid} ->
+ inet:setopts(Socket, [nodelay()]),
ok = gen_tcp:controlling_process(Socket, Pid),
flush_old_controller(Pid, Socket),
Pid ! {self(), controller};
@@ -171,7 +218,7 @@ accept_loop(Proxy, world = Type, Listen, Extra) ->
accept_loop(Proxy, Type, Listen, Extra).
try_connect(Port) ->
- case gen_tcp:connect({127,0,0,1}, Port, [{active, false}, {packet,?PPRE}]) of
+ case gen_tcp:connect({127,0,0,1}, Port, [{active, false}, {packet,?PPRE}, nodelay()]) of
R = {ok, _S} ->
R;
{error, _R} ->
@@ -181,7 +228,7 @@ try_connect(Port) ->
setup_proxy(Ip, Port, Parent) ->
process_flag(trap_exit, true),
Opts = get_ssl_options(client),
- case ssl:connect(Ip, Port, [{active, true}, binary, {packet,?PPRE}] ++ Opts) of
+ case ssl:connect(Ip, Port, [{active, true}, binary, {packet,?PPRE}, nodelay()] ++ Opts) of
{ok, World} ->
{ok, ErtsL} = gen_tcp:listen(0, [{active, true}, {ip, {127,0,0,1}}, binary, {packet,?PPRE}]),
{ok, #net_address{address={_,LPort}}} = get_tcp_address(ErtsL),
@@ -202,25 +249,41 @@ setup_proxy(Ip, Port, Parent) ->
Parent ! {self(), Err}
end.
+
+%% we may not always want the nodelay behaviour
+%% %% for performance reasons
+
+nodelay() ->
+ case application:get_env(kernel, dist_nodelay) of
+ undefined ->
+ {nodelay, true};
+ {ok, true} ->
+ {nodelay, true};
+ {ok, false} ->
+ {nodelay, false};
+ _ ->
+ {nodelay, true}
+ end.
+
setup_connection(World, ErtsListen) ->
process_flag(trap_exit, true),
{ok, TcpAddress} = get_tcp_address(ErtsListen),
{_Addr,Port} = TcpAddress#net_address.address,
- {ok, Erts} = gen_tcp:connect({127,0,0,1}, Port, [{active, true}, binary, {packet,?PPRE}]),
- ssl:setopts(World, [{active,true}, {packet,?PPRE}]),
+ {ok, Erts} = gen_tcp:connect({127,0,0,1}, Port, [{active, true}, binary, {packet,?PPRE}, nodelay()]),
+ ssl:setopts(World, [{active,true}, {packet,?PPRE}, nodelay()]),
loop_conn_setup(World, Erts).
loop_conn_setup(World, Erts) ->
receive
{ssl, World, Data = <<$a, _/binary>>} ->
gen_tcp:send(Erts, Data),
- ssl:setopts(World, [{packet,?PPOST}]),
- inet:setopts(Erts, [{packet,?PPOST}]),
+ ssl:setopts(World, [{packet,?PPOST}, nodelay()]),
+ inet:setopts(Erts, [{packet,?PPOST}, nodelay()]),
loop_conn(World, Erts);
{tcp, Erts, Data = <<$a, _/binary>>} ->
ssl:send(World, Data),
- ssl:setopts(World, [{packet,?PPOST}]),
- inet:setopts(Erts, [{packet,?PPOST}]),
+ ssl:setopts(World, [{packet,?PPOST}, nodelay()]),
+ inet:setopts(Erts, [{packet,?PPOST}, nodelay()]),
loop_conn(World, Erts);
{ssl, World, Data = <<_, _/binary>>} ->
gen_tcp:send(Erts, Data),
@@ -237,7 +300,10 @@ loop_conn_setup(World, Erts) ->
{tcp_closed, Erts} ->
ssl:close(World);
{ssl_closed, World} ->
- gen_tcp:close(Erts)
+ gen_tcp:close(Erts);
+ {ssl_error, World, _} ->
+
+ ssl:close(World)
end.
loop_conn(World, Erts) ->
@@ -251,7 +317,9 @@ loop_conn(World, Erts) ->
{tcp_closed, Erts} ->
ssl:close(World);
{ssl_closed, World} ->
- gen_tcp:close(Erts)
+ gen_tcp:close(Erts);
+ {ssl_error, World, _} ->
+ ssl:close(World)
end.
get_ssl_options(Type) ->
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-19 02:12:28 +0000