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-rw-r--r--lib/kernel/doc/src/kernel_app.xml14
-rw-r--r--lib/kernel/src/inet_tcp_dist.erl48
-rw-r--r--lib/kernel/test/erl_distribution_SUITE.erl76
3 files changed, 120 insertions, 18 deletions
diff --git a/lib/kernel/doc/src/kernel_app.xml b/lib/kernel/doc/src/kernel_app.xml
index 00c6bc33d6..96e3651140 100644
--- a/lib/kernel/doc/src/kernel_app.xml
+++ b/lib/kernel/doc/src/kernel_app.xml
@@ -4,7 +4,7 @@
<appref>
<header>
<copyright>
- <year>1996</year><year>2014</year>
+ <year>1996</year><year>2015</year>
<holder>Ericsson AB. All Rights Reserved.</holder>
</copyright>
<legalnotice>
@@ -188,6 +188,18 @@
<p>Define the <c>First..Last</c> port range for the listener
socket of a distributed Erlang node.</p>
</item>
+ <tag><c>{inet_dist_listen_options, Opts}</c></tag>
+ <item>
+ <p>Define a list of extra socket options to be used when opening the
+ listening socket for a distributed Erlang node.
+ See <seealso marker="gen_tcp#listen/2">gen_tcp:listen/2</seealso></p>
+ </item>
+ <tag><c>{inet_dist_connect_options, Opts}</c></tag>
+ <item>
+ <p>Define a list of extra socket options to be used when connecting to
+ other distributed Erlang nodes.
+ See <seealso marker="gen_tcp#connect/4">gen_tcp:connect/4</seealso></p>
+ </item>
<tag><c>inet_parse_error_log = silent</c></tag>
<item>
<p>If this configuration parameter is set, no
diff --git a/lib/kernel/src/inet_tcp_dist.erl b/lib/kernel/src/inet_tcp_dist.erl
index 63f236b069..835dcf2705 100644
--- a/lib/kernel/src/inet_tcp_dist.erl
+++ b/lib/kernel/src/inet_tcp_dist.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1997-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2015. 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
@@ -77,7 +77,7 @@ listen(Name) ->
Error
end.
-do_listen(Options0) ->
+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,
@@ -90,13 +90,7 @@ do_listen(Options0) ->
_ ->
{0,0}
end,
- Options = case application:get_env(kernel, inet_dist_use_interface) of
- {ok, Ip} ->
- [{ip, Ip} | Options0];
- _ ->
- Options0
- end,
- do_listen(First, Last, [{backlog,128}|Options]).
+ do_listen(First, Last, listen_options([{backlog,128}|Options])).
do_listen(First,Last,_) when First > Last ->
{error,eaddrinuse};
@@ -108,6 +102,23 @@ do_listen(First,Last,Options) ->
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} ->
+ erlang:display({inet_dist_listen_options, ListenOpts}),
+ ListenOpts ++ Opts1;
+ _ ->
+ Opts1
+ end.
+
+
%% ------------------------------------------------------------
%% Accepts new connection attempts from other Erlang nodes.
%% ------------------------------------------------------------
@@ -219,7 +230,7 @@ nodelay() ->
_ ->
{nodelay, true}
end.
-
+
%% ------------------------------------------------------------
%% Get remote information about a Socket.
@@ -260,9 +271,11 @@ do_setup(Kernel, Node, Type, MyNode, LongOrShortNames,SetupTime) ->
?trace("port_please(~p) -> version ~p~n",
[Node,Version]),
dist_util:reset_timer(Timer),
- case inet_tcp:connect(Ip, TcpPort,
- [{active, false},
- {packet,2}]) of
+ case
+ inet_tcp:connect(
+ Ip, TcpPort,
+ connect_options([{active, false}, {packet, 2}]))
+ of
{ok, Socket} ->
HSData = #hs_data{
kernel_pid = Kernel,
@@ -324,6 +337,15 @@ do_setup(Kernel, Node, Type, MyNode, LongOrShortNames,SetupTime) ->
?shutdown(Node)
end.
+connect_options(Opts) ->
+ case application:get_env(kernel, inet_dist_connect_options) of
+ {ok,ConnectOpts} ->
+ erlang:display({inet_dist_listen_options, ConnectOpts}),
+ ConnectOpts ++ Opts;
+ _ ->
+ Opts
+ end.
+
%%
%% Close a socket.
%%
diff --git a/lib/kernel/test/erl_distribution_SUITE.erl b/lib/kernel/test/erl_distribution_SUITE.erl
index 9cccdab76b..15c2adc957 100644
--- a/lib/kernel/test/erl_distribution_SUITE.erl
+++ b/lib/kernel/test/erl_distribution_SUITE.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1997-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2015. 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
@@ -26,7 +26,8 @@
-export([tick/1, tick_change/1, illegal_nodenames/1, hidden_node/1,
table_waste/1, net_setuptime/1,
-
+ inet_dist_options_options/1,
+
monitor_nodes_nodedown_reason/1,
monitor_nodes_complex_nodedown_reason/1,
monitor_nodes_node_type/1,
@@ -38,7 +39,8 @@
monitor_nodes_many/1]).
%% Performs the test at another node.
--export([tick_cli_test/1, tick_cli_test1/1,
+-export([get_socket_priorities/0,
+ tick_cli_test/1, tick_cli_test1/1,
tick_serv_test/2, tick_serv_test1/1,
keep_conn/1, time_ping/1]).
@@ -62,7 +64,8 @@ suite() -> [{ct_hooks,[ts_install_cth]}].
all() ->
[tick, tick_change, illegal_nodenames, hidden_node,
- table_waste, net_setuptime, {group, monitor_nodes}].
+ table_waste, net_setuptime, inet_dist_options_options,
+ {group, monitor_nodes}].
groups() ->
[{monitor_nodes, [],
@@ -554,6 +557,71 @@ check_monitor_nodes_res(Pid, Node) ->
end.
+
+inet_dist_options_options(suite) -> [];
+inet_dist_options_options(doc) ->
+ ["Check the kernel inet_dist_{listen,connect}_options options"];
+inet_dist_options_options(Config) when is_list(Config) ->
+ Prio = 1,
+ case gen_udp:open(0, [{priority,Prio}]) of
+ {ok,Socket} ->
+ case inet:getopts(Socket, [priority]) of
+ {ok,[{priority,Prio}]} ->
+ ok = gen_udp:close(Socket),
+ do_inet_dist_options_options(Prio);
+ _ ->
+ ok = gen_udp:close(Socket),
+ {skip,
+ "Can not set priority "++integer_to_list(Prio)++
+ " on socket"}
+ end;
+ {error,_} ->
+ {skip, "Can not set priority on socket"}
+ end.
+
+do_inet_dist_options_options(Prio) ->
+ PriorityString0 = "[{priority,"++integer_to_list(Prio)++"}]",
+ PriorityString =
+ case os:cmd("echo [{a,1}]") of
+ "[{a,1}]"++_ ->
+ PriorityString0;
+ _ ->
+ %% Some shells need quoting of [{}]
+ "'"++PriorityString0++"'"
+ end,
+ InetDistOptions =
+ "-hidden "
+ "-kernel inet_dist_connect_options "++PriorityString++" "
+ "-kernel inet_dist_listen_options "++PriorityString,
+ ?line {ok,Node1} =
+ start_node(inet_dist_options_1, InetDistOptions),
+ ?line {ok,Node2} =
+ start_node(inet_dist_options_2, InetDistOptions),
+ %%
+ ?line pong =
+ rpc:call(Node1, net_adm, ping, [Node2]),
+ ?line PrioritiesNode1 =
+ rpc:call(Node1, ?MODULE, get_socket_priorities, []),
+ ?line PrioritiesNode2 =
+ rpc:call(Node2, ?MODULE, get_socket_priorities, []),
+ ?line ?t:format("PrioritiesNode1 = ~p", [PrioritiesNode1]),
+ ?line ?t:format("PrioritiesNode2 = ~p", [PrioritiesNode2]),
+ ?line Elevated = [P || P <- PrioritiesNode1, P =:= Prio],
+ ?line Elevated = [P || P <- PrioritiesNode2, P =:= Prio],
+ ?line [_|_] = Elevated,
+ %%
+ ?line stop_node(Node2),
+ ?line stop_node(Node1),
+ ok.
+
+get_socket_priorities() ->
+ [Priority ||
+ {ok,[{priority,Priority}]} <-
+ [inet:getopts(Port, [priority]) ||
+ Port <- erlang:ports(),
+ element(2, erlang:port_info(Port, name)) =:= "tcp_inet"]].
+
+
%%
%% Testcase:
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 00:33:10 +0000