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authorMagnus Henoch <[email protected]>2015-11-13 18:26:47 +0000
committerMagnus Henoch <[email protected]>2016-02-02 14:03:12 +0000
commitfac6b24525a1e5f3e50ee9cbdb4daae2ea457f51 (patch)
tree149b54aa16fdbc4ebc4efa37d7d697cb7ac4f0bf
parent7cb403e4aa044fd2cc7702dbe8e2d0eea68e81f3 (diff)
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Add inet6_tls_dist, for TLS distribution over IPv6
Generalise much of inet_tls_dist, so that inet6_tls_dist can reuse it.
-rw-r--r--lib/ssl/doc/src/ssl_distribution.xml23
-rw-r--r--lib/ssl/src/Makefile1
-rw-r--r--lib/ssl/src/inet6_tls_dist.erl46
-rw-r--r--lib/ssl/src/inet_tls_dist.erl95
-rw-r--r--lib/ssl/src/ssl.app.src1
-rw-r--r--lib/ssl/src/ssl_tls_dist_proxy.erl30
6 files changed, 140 insertions, 56 deletions
diff --git a/lib/ssl/doc/src/ssl_distribution.xml b/lib/ssl/doc/src/ssl_distribution.xml
index a347ce5ae6..dc04d446b0 100644
--- a/lib/ssl/doc/src/ssl_distribution.xml
+++ b/lib/ssl/doc/src/ssl_distribution.xml
@@ -271,4 +271,27 @@ Eshell V5.0 (abort with ^G)
<p>The <c>init:get_arguments()</c> call verifies that the correct
arguments are supplied to the emulator.</p>
</section>
+
+ <section>
+ <title>Using SSL distribution over IPv6</title>
+ <p>It is possible to use SSL distribution over IPv6 instead of
+ IPv4. To do this, pass the option <c>-proto_dist inet6_tls</c>
+ instead of <c>-proto_dist inet_tls</c> when starting Erlang,
+ either on the command line or in the <c>ERL_FLAGS</c> environment
+ variable.</p>
+
+ <p>An example command line with this option would look like this:</p>
+ <code type="none">
+$ erl -boot /home/me/ssl/start_ssl -proto_dist inet6_tls
+ -ssl_dist_opt server_certfile "/home/me/ssl/erlserver.pem"
+ -ssl_dist_opt server_secure_renegotiate true client_secure_renegotiate true
+ -sname ssl_test
+Erlang (BEAM) emulator version 5.0 [source]
+
+Eshell V5.0 (abort with ^G)
+(ssl_test@myhost)1> </code>
+
+ <p>A node started in this way will only be able to communicate with
+ other nodes using SSL distribution over IPv6.</p>
+ </section>
</chapter>
diff --git a/lib/ssl/src/Makefile b/lib/ssl/src/Makefile
index 790328dc45..7a7a373487 100644
--- a/lib/ssl/src/Makefile
+++ b/lib/ssl/src/Makefile
@@ -51,6 +51,7 @@ MODULES= \
ssl_dist_sup\
ssl_sup \
inet_tls_dist \
+ inet6_tls_dist \
ssl_certificate\
ssl_pkix_db\
ssl_cipher \
diff --git a/lib/ssl/src/inet6_tls_dist.erl b/lib/ssl/src/inet6_tls_dist.erl
new file mode 100644
index 0000000000..ffd7296f93
--- /dev/null
+++ b/lib/ssl/src/inet6_tls_dist.erl
@@ -0,0 +1,46 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2015. 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%
+%%
+
+%%
+-module(inet6_tls_dist).
+
+-export([childspecs/0, listen/1, accept/1, accept_connection/5,
+ setup/5, close/1, select/1]).
+
+childspecs() ->
+ inet_tls_dist:childspecs().
+
+select(Node) ->
+ inet_tls_dist:gen_select(inet6_tcp, Node).
+
+listen(Name) ->
+ inet_tls_dist:gen_listen(inet6_tcp, Name).
+
+accept(Listen) ->
+ inet_tls_dist:gen_accept(inet6_tcp, Listen).
+
+accept_connection(AcceptPid, Socket, MyNode, Allowed, SetupTime) ->
+ inet_tls_dist:gen_accept_connection(inet6_tcp, AcceptPid, Socket, MyNode, Allowed, SetupTime).
+
+setup(Node, Type, MyNode, LongOrShortNames,SetupTime) ->
+ inet_tls_dist:gen_setup(inet6_tcp, Node, Type, MyNode, LongOrShortNames,SetupTime).
+
+close(Socket) ->
+ inet_tls_dist:close(Socket).
diff --git a/lib/ssl/src/inet_tls_dist.erl b/lib/ssl/src/inet_tls_dist.erl
index 6fe99a81c5..ec26142a75 100644
--- a/lib/ssl/src/inet_tls_dist.erl
+++ b/lib/ssl/src/inet_tls_dist.erl
@@ -24,6 +24,10 @@
-export([childspecs/0, listen/1, accept/1, accept_connection/5,
setup/5, close/1, select/1, is_node_name/1]).
+%% Generalized dist API
+-export([gen_listen/2, gen_accept/2, gen_accept_connection/6,
+ gen_setup/6, gen_select/2]).
+
-include_lib("kernel/include/net_address.hrl").
-include_lib("kernel/include/dist.hrl").
-include_lib("kernel/include/dist_util.hrl").
@@ -33,9 +37,15 @@ childspecs() ->
permanent, infinity, supervisor, [ssl_dist_sup]}]}.
select(Node) ->
+ gen_select(inet_tcp, Node).
+
+gen_select(Driver, Node) ->
case split_node(atom_to_list(Node), $@, []) of
- [_,_Host] ->
- true;
+ [_, Host] ->
+ case inet:getaddr(Host, Driver:family()) of
+ {ok, _} -> true;
+ _ -> false
+ end;
_ ->
false
end.
@@ -46,23 +56,35 @@ is_node_name(_) ->
false.
listen(Name) ->
- ssl_tls_dist_proxy:listen(Name).
+ gen_listen(inet_tcp, Name).
+
+gen_listen(Driver, Name) ->
+ ssl_tls_dist_proxy:listen(Driver, Name).
accept(Listen) ->
- ssl_tls_dist_proxy:accept(Listen).
+ gen_accept(inet_tcp, Listen).
+
+gen_accept(Driver, Listen) ->
+ ssl_tls_dist_proxy:accept(Driver, Listen).
accept_connection(AcceptPid, Socket, MyNode, Allowed, SetupTime) ->
+ gen_accept_connection(inet_tcp, AcceptPid, Socket, MyNode, Allowed, SetupTime).
+
+gen_accept_connection(Driver, AcceptPid, Socket, MyNode, Allowed, SetupTime) ->
Kernel = self(),
- spawn_link(fun() -> do_accept(Kernel, AcceptPid, Socket,
+ spawn_link(fun() -> do_accept(Driver, Kernel, AcceptPid, Socket,
MyNode, Allowed, SetupTime) end).
setup(Node, Type, MyNode, LongOrShortNames,SetupTime) ->
+ gen_setup(inet_tcp, Node, Type, MyNode, LongOrShortNames,SetupTime).
+
+gen_setup(Driver, Node, Type, MyNode, LongOrShortNames,SetupTime) ->
Kernel = self(),
- spawn_opt(fun() -> do_setup(Kernel, Node, Type, MyNode, LongOrShortNames, SetupTime) end, [link, {priority, max}]).
+ spawn_opt(fun() -> do_setup(Driver, Kernel, Node, Type, MyNode, LongOrShortNames, SetupTime) end, [link, {priority, max}]).
-do_setup(Kernel, Node, Type, MyNode, LongOrShortNames, SetupTime) ->
- [Name, Address] = splitnode(Node, LongOrShortNames),
- case inet:getaddr(Address, inet) of
+do_setup(Driver, Kernel, Node, Type, MyNode, LongOrShortNames, SetupTime) ->
+ [Name, Address] = splitnode(Driver, Node, LongOrShortNames),
+ case inet:getaddr(Address, Driver:family()) of
{ok, Ip} ->
Timer = dist_util:start_timer(SetupTime),
case erl_epmd:port_please(Name, Ip) of
@@ -70,7 +92,7 @@ do_setup(Kernel, Node, Type, MyNode, LongOrShortNames, SetupTime) ->
?trace("port_please(~p) -> version ~p~n",
[Node,Version]),
dist_util:reset_timer(Timer),
- case ssl_tls_dist_proxy:connect(Ip, TcpPort) of
+ case ssl_tls_dist_proxy:connect(Driver, Ip, TcpPort) of
{ok, Socket} ->
HSData = connect_hs_data(Kernel, Node, MyNode, Socket,
Timer, Version, Ip, TcpPort, Address,
@@ -99,12 +121,12 @@ close(Socket) ->
gen_tcp:close(Socket),
ok.
-do_accept(Kernel, AcceptPid, Socket, MyNode, Allowed, SetupTime) ->
+do_accept(Driver, Kernel, AcceptPid, Socket, MyNode, Allowed, SetupTime) ->
process_flag(priority, max),
receive
{AcceptPid, controller} ->
Timer = dist_util:start_timer(SetupTime),
- case check_ip(Socket) of
+ case check_ip(Driver, Socket) of
true ->
HSData = accept_hs_data(Kernel, MyNode, Socket, Timer, Allowed),
dist_util:handshake_other_started(HSData);
@@ -118,12 +140,12 @@ do_accept(Kernel, AcceptPid, Socket, MyNode, Allowed, SetupTime) ->
%% Do only accept new connection attempts from nodes at our
%% own LAN, if the check_ip environment parameter is true.
%% ------------------------------------------------------------
-check_ip(Socket) ->
+check_ip(Driver, Socket) ->
case application:get_env(check_ip) of
{ok, true} ->
case get_ifs(Socket) of
{ok, IFs, IP} ->
- check_ip(IFs, IP);
+ check_ip(Driver, IFs, IP);
_ ->
?shutdown(no_node)
end;
@@ -142,37 +164,21 @@ get_ifs(Socket) ->
Error
end.
-check_ip([{OwnIP, _, Netmask}|IFs], PeerIP) ->
- case {mask(Netmask, PeerIP), mask(Netmask, OwnIP)} of
+check_ip(Driver, [{OwnIP, _, Netmask}|IFs], PeerIP) ->
+ case {Driver:mask(Netmask, PeerIP), Driver:mask(Netmask, OwnIP)} of
{M, M} -> true;
_ -> check_ip(IFs, PeerIP)
end;
-check_ip([], PeerIP) ->
+check_ip(_Driver, [], PeerIP) ->
{false, PeerIP}.
-mask({M1,M2,M3,M4}, {IP1,IP2,IP3,IP4}) ->
- {M1 band IP1,
- M2 band IP2,
- M3 band IP3,
- M4 band IP4};
-
-mask({M1,M2,M3,M4, M5, M6, M7, M8}, {IP1,IP2,IP3,IP4, IP5, IP6, IP7, IP8}) ->
- {M1 band IP1,
- M2 band IP2,
- M3 band IP3,
- M4 band IP4,
- M5 band IP5,
- M6 band IP6,
- M7 band IP7,
- M8 band IP8}.
-
%% If Node is illegal terminate the connection setup!!
-splitnode(Node, LongOrShortNames) ->
+splitnode(Driver, Node, LongOrShortNames) ->
case split_node(atom_to_list(Node), $@, []) of
[Name|Tail] when Tail =/= [] ->
Host = lists:append(Tail),
- check_node(Name, Node, Host, LongOrShortNames);
+ check_node(Driver, Name, Node, Host, LongOrShortNames);
[_] ->
error_logger:error_msg("** Nodename ~p illegal, no '@' character **~n",
[Node]),
@@ -182,15 +188,20 @@ splitnode(Node, LongOrShortNames) ->
?shutdown(Node)
end.
-check_node(Name, Node, Host, LongOrShortNames) ->
+check_node(Driver, Name, Node, Host, LongOrShortNames) ->
case split_node(Host, $., []) of
[_] when LongOrShortNames == longnames ->
- error_logger:error_msg("** System running to use "
- "fully qualified "
- "hostnames **~n"
- "** Hostname ~s is illegal **~n",
- [Host]),
- ?shutdown(Node);
+ case Driver:parse_address(Host) of
+ {ok, _} ->
+ [Name, Host];
+ _ ->
+ error_logger:error_msg("** System running to use "
+ "fully qualified "
+ "hostnames **~n"
+ "** Hostname ~s is illegal **~n",
+ [Host]),
+ ?shutdown(Node)
+ end;
[_, _ | _] when LongOrShortNames == shortnames ->
error_logger:error_msg("** System NOT running to use fully qualified "
"hostnames **~n"
diff --git a/lib/ssl/src/ssl.app.src b/lib/ssl/src/ssl.app.src
index 619ab7b610..1a2bf90ccf 100644
--- a/lib/ssl/src/ssl.app.src
+++ b/lib/ssl/src/ssl.app.src
@@ -31,6 +31,7 @@
ssl_listen_tracker_sup,
%% Erlang Distribution over SSL/TLS
inet_tls_dist,
+ inet6_tls_dist,
ssl_tls_dist_proxy,
ssl_dist_sup,
%% SSL/TLS session handling
diff --git a/lib/ssl/src/ssl_tls_dist_proxy.erl b/lib/ssl/src/ssl_tls_dist_proxy.erl
index 1e6c6e726a..48c9c65977 100644
--- a/lib/ssl/src/ssl_tls_dist_proxy.erl
+++ b/lib/ssl/src/ssl_tls_dist_proxy.erl
@@ -20,7 +20,7 @@
-module(ssl_tls_dist_proxy).
--export([listen/1, accept/1, connect/2, get_tcp_address/1]).
+-export([listen/2, accept/2, connect/3, get_tcp_address/1]).
-export([init/1, start_link/0, handle_call/3, handle_cast/2, handle_info/2,
terminate/2, code_change/3, ssl_options/2]).
@@ -39,14 +39,14 @@
%% Internal application API
%%====================================================================
-listen(Name) ->
- gen_server:call(?MODULE, {listen, Name}, infinity).
+listen(Driver, Name) ->
+ gen_server:call(?MODULE, {listen, Driver, Name}, infinity).
-accept(Listen) ->
- gen_server:call(?MODULE, {accept, Listen}, infinity).
+accept(Driver, Listen) ->
+ gen_server:call(?MODULE, {accept, Driver, Listen}, infinity).
-connect(Ip, Port) ->
- gen_server:call(?MODULE, {connect, Ip, Port}, infinity).
+connect(Driver, Ip, Port) ->
+ gen_server:call(?MODULE, {connect, Driver, Ip, Port}, infinity).
do_listen(Options) ->
@@ -108,10 +108,11 @@ init([]) ->
process_flag(priority, max),
{ok, #state{}}.
-handle_call({listen, Name}, _From, State) ->
+handle_call({listen, Driver, Name}, _From, State) ->
case gen_tcp:listen(0, [{active, false}, {packet,?PPRE}]) of
{ok, Socket} ->
- {ok, World} = do_listen([{active, false}, binary, {packet,?PPRE}, {reuseaddr, true}]),
+ {ok, World} = do_listen([{active, false}, binary, {packet,?PPRE}, {reuseaddr, true},
+ Driver:family()]),
{ok, TcpAddress} = get_tcp_address(Socket),
{ok, WorldTcpAddress} = get_tcp_address(World),
{_,Port} = WorldTcpAddress#net_address.address,
@@ -126,15 +127,15 @@ handle_call({listen, Name}, _From, State) ->
{reply, Error, State}
end;
-handle_call({accept, Listen}, {From, _}, State = #state{listen={_, World}}) ->
+handle_call({accept, _Driver, Listen}, {From, _}, State = #state{listen={_, World}}) ->
Self = self(),
ErtsPid = spawn_link(fun() -> accept_loop(Self, erts, Listen, From) end),
WorldPid = spawn_link(fun() -> accept_loop(Self, world, World, Listen) end),
{reply, ErtsPid, State#state{accept_loop={ErtsPid, WorldPid}}};
-handle_call({connect, Ip, Port}, {From, _}, State) ->
+handle_call({connect, Driver, Ip, Port}, {From, _}, State) ->
Me = self(),
- Pid = spawn_link(fun() -> setup_proxy(Ip, Port, Me) end),
+ Pid = spawn_link(fun() -> setup_proxy(Driver, Ip, Port, Me) end),
receive
{Pid, go_ahead, LPort} ->
Res = {ok, Socket} = try_connect(LPort),
@@ -263,10 +264,11 @@ try_connect(Port) ->
try_connect(Port)
end.
-setup_proxy(Ip, Port, Parent) ->
+setup_proxy(Driver, Ip, Port, Parent) ->
process_flag(trap_exit, true),
Opts = connect_options(get_ssl_options(client)),
- case ssl:connect(Ip, Port, [{active, true}, binary, {packet,?PPRE}, nodelay()] ++ Opts) of
+ case ssl:connect(Ip, Port, [{active, true}, binary, {packet,?PPRE}, nodelay(),
+ Driver:family()] ++ 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),