diff options
Diffstat (limited to 'lib/ssl/src/ssl_socket.erl')
-rw-r--r-- | lib/ssl/src/ssl_socket.erl | 195 |
1 files changed, 194 insertions, 1 deletions
diff --git a/lib/ssl/src/ssl_socket.erl b/lib/ssl/src/ssl_socket.erl index 1b6e637cd3..e42d637301 100644 --- a/lib/ssl/src/ssl_socket.erl +++ b/lib/ssl/src/ssl_socket.erl @@ -1,20 +1,72 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 1998-2014. 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% +%% -module(ssl_socket). +-behaviour(gen_server). + -include("ssl_internal.hrl"). -include("ssl_api.hrl"). -export([socket/4, setopts/3, getopts/3, peername/2, sockname/2, port/2]). +-export([emulated_options/0, internal_inet_values/0, default_inet_values/0, + init/1, start_link/2, terminate/2, inherit_tracker/3, get_emulated_opts/1, + set_emulated_opts/2, handle_call/3, handle_cast/2, + handle_info/2, code_change/3]). + +-record(state, { + emulated_opts, + port + }). +%%-------------------------------------------------------------------- +%%% Internal API +%%-------------------------------------------------------------------- socket(Pid, Transport, Socket, ConnectionCb) -> #sslsocket{pid = Pid, %% "The name "fd" is keept for backwards compatibility fd = {Transport, Socket, ConnectionCb}}. - +setopts(gen_tcp, #sslsocket{pid = {ListenSocket, #config{emulated = Tracker}}}, Options) -> + {SockOpts, EmulatedOpts} = split_options(Options), + ok = set_emulated_opts(Tracker, EmulatedOpts), + inet:setopts(ListenSocket, SockOpts); +setopts(_, #sslsocket{pid = {ListenSocket, #config{transport_info = {Transport,_,_,_}, + emulated = Tracker}}}, Options) -> + {SockOpts, EmulatedOpts} = split_options(Options), + ok = set_emulated_opts(Tracker, EmulatedOpts), + Transport:setopts(ListenSocket, SockOpts); +%%% Following clauses will not be called for emulated options, they are handled in the connection process setopts(gen_tcp, Socket, Options) -> inet:setopts(Socket, Options); setopts(Transport, Socket, Options) -> Transport:setopts(Socket, Options). +getopts(gen_tcp, #sslsocket{pid = {ListenSocket, #config{emulated = Tracker}}}, Options) -> + {SockOptNames, EmulatedOptNames} = split_options(Options), + EmulatedOpts = get_emulated_opts(Tracker, EmulatedOptNames), + SocketOpts = get_socket_opts(ListenSocket, SockOptNames, inet), + {ok, EmulatedOpts ++ SocketOpts}; +getopts(Transport, #sslsocket{pid = {ListenSocket, #config{emulated = Tracker}}}, Options) -> + {SockOptNames, EmulatedOptNames} = split_options(Options), + EmulatedOpts = get_emulated_opts(Tracker, EmulatedOptNames), + SocketOpts = get_socket_opts(ListenSocket, SockOptNames, Transport), + {ok, EmulatedOpts ++ SocketOpts}; +%%% Following clauses will not be called for emulated options, they are handled in the connection process getopts(gen_tcp, Socket, Options) -> inet:getopts(Socket, Options); getopts(Transport, Socket, Options) -> @@ -34,3 +86,144 @@ port(gen_tcp, Socket) -> inet:port(Socket); port(Transport, Socket) -> Transport:port(Socket). + +emulated_options() -> + [mode, packet, active, header, packet_size]. + +internal_inet_values() -> + [{packet_size,0}, {packet, 0}, {header, 0}, {active, false}, {mode,binary}]. + +default_inet_values() -> + [{packet_size, 0}, {packet,0}, {header, 0}, {active, true}, {mode, list}]. + +inherit_tracker(ListenSocket, EmOpts, #ssl_options{erl_dist = false}) -> + ssl_listen_tracker_sup:start_child([ListenSocket, EmOpts]); +inherit_tracker(ListenSocket, EmOpts, #ssl_options{erl_dist = true}) -> + ssl_listen_tracker_sup:start_child_dist([ListenSocket, EmOpts]). + +get_emulated_opts(TrackerPid, EmOptNames) -> + {ok, EmOpts} = get_emulated_opts(TrackerPid), + lists:map(fun(Name) -> {value, Value} = lists:keysearch(Name, 1, EmOpts), + Value end, + EmOptNames). + +get_emulated_opts(TrackerPid) -> + call(TrackerPid, get_emulated_opts). +set_emulated_opts(TrackerPid, InetValues) -> + call(TrackerPid, {set_emulated_opts, InetValues}). + +%%==================================================================== +%% ssl_listen_tracker_sup API +%%==================================================================== + +start_link(Port, SockOpts) -> + gen_server:start_link(?MODULE, [Port, SockOpts], []). + +%%-------------------------------------------------------------------- +-spec init(list()) -> {ok, #state{}}. +%% Possible return values not used now. +%% | {ok, #state{}, timeout()} | ignore | {stop, term()}. +%% +%% Description: Initiates the server +%%-------------------------------------------------------------------- +init([Port, Opts]) -> + process_flag(trap_exit, true), + true = link(Port), + {ok, #state{emulated_opts = Opts, port = Port}}. + +%%-------------------------------------------------------------------- +-spec handle_call(msg(), from(), #state{}) -> {reply, reply(), #state{}}. +%% Possible return values not used now. +%% {reply, reply(), #state{}, timeout()} | +%% {noreply, #state{}} | +%% {noreply, #state{}, timeout()} | +%% {stop, reason(), reply(), #state{}} | +%% {stop, reason(), #state{}}. +%% +%% Description: Handling call messages +%%-------------------------------------------------------------------- +handle_call({set_emulated_opts, Opts0}, _From, + #state{emulated_opts = Opts1} = State) -> + Opts = do_set_emulated_opts(Opts0, Opts1), + {reply, ok, State#state{emulated_opts = Opts}}; +handle_call(get_emulated_opts, _From, + #state{emulated_opts = Opts} = State) -> + {reply, {ok, Opts}, State}. + +%%-------------------------------------------------------------------- +-spec handle_cast(msg(), #state{}) -> {noreply, #state{}}. +%% Possible return values not used now. +%% | {noreply, #state{}, timeout()} | +%% {stop, reason(), #state{}}. +%% +%% Description: Handling cast messages +%%-------------------------------------------------------------------- +handle_cast(_, State)-> + {noreply, State}. + +%%-------------------------------------------------------------------- +-spec handle_info(msg(), #state{}) -> {noreply, #state{}}. +%% Possible return values not used now. +%% |{noreply, #state{}, timeout()} | +%% {stop, reason(), #state{}}. +%% +%% Description: Handling all non call/cast messages +%%------------------------------------------------------------------- +handle_info({'EXIT', Port, _}, #state{port = Port} = State) -> + {stop, normal, State}. + + +%%-------------------------------------------------------------------- +-spec terminate(reason(), #state{}) -> ok. +%% +%% Description: This function is called by a gen_server when it is about to +%% terminate. It should be the opposite of Module:init/1 and do any necessary +%% cleaning up. When it returns, the gen_server terminates with Reason. +%% The return value is ignored. +%%-------------------------------------------------------------------- +terminate(_Reason, _State) -> + ok. + +%%-------------------------------------------------------------------- +-spec code_change(term(), #state{}, list()) -> {ok, #state{}}. +%% +%% Description: Convert process state when code is changed +%%-------------------------------------------------------------------- +code_change(_OldVsn, State, _Extra) -> + {ok, State}. + +%%-------------------------------------------------------------------- +%%% Internal functions +%%-------------------------------------------------------------------- +call(Pid, Msg) -> + gen_server:call(Pid, Msg, infinity). + +split_options(Opts) -> + split_options(Opts, emulated_options(), [], []). +split_options([], _, SocketOpts, EmuOpts) -> + {SocketOpts, EmuOpts}; +split_options([{Name, _} = Opt | Opts], Emu, SocketOpts, EmuOpts) -> + case lists:member(Name, Emu) of + true -> + split_options(Opts, Emu, SocketOpts, [Opt | EmuOpts]); + false -> + split_options(Opts, Emu, [Opt | SocketOpts], EmuOpts) + end; +split_options([Name | Opts], Emu, SocketOptNames, EmuOptNames) -> + case lists:member(Name, Emu) of + true -> + split_options(Opts, Emu, SocketOptNames, [Name | EmuOptNames]); + false -> + split_options(Opts, Emu, [Name | SocketOptNames], EmuOptNames) + end. + +do_set_emulated_opts([], Opts) -> + Opts; +do_set_emulated_opts([{Name,_} = Opt | Rest], Opts) -> + do_set_emulated_opts(Rest, [Opt | proplists:delete(Name, Opts)]). + +get_socket_opts(_, [], _) -> + []; +get_socket_opts(ListenSocket, SockOptNames, Cb) -> + {ok, Opts} = Cb:getopts(ListenSocket, SockOptNames), + Opts. |