%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2007-2011. 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(gen_sctp_SUITE).
-include_lib("test_server/include/test_server.hrl").
-include_lib("kernel/include/inet_sctp.hrl").
%%-compile(export_all).
-export([all/0, suite/0,groups/0,
init_per_suite/1,end_per_suite/1,
init_per_group/2,end_per_group/2,
init_per_testcase/2, end_per_testcase/2]).
-export(
[basic/1,
api_open_close/1,api_listen/1,api_connect_init/1,api_opts/1,
xfer_min/1,xfer_active/1,def_sndrcvinfo/1,implicit_inet6/1,
basic_stream/1, xfer_stream_min/1, peeloff/1]).
suite() -> [{ct_hooks,[ts_install_cth]}].
all() ->
[basic, api_open_close, api_listen, api_connect_init,
api_opts, xfer_min, xfer_active, def_sndrcvinfo, implicit_inet6,
basic_stream, xfer_stream_min, peeloff].
groups() ->
[].
init_per_suite(Config) ->
try gen_sctp:open() of
{ok,Socket} ->
gen_sctp:close(Socket),
[];
_ ->
[]
catch
error:badarg ->
{skip,"SCTP not supported on this machine"};
_:_ ->
Config
end.
end_per_suite(_Conifig) ->
ok.
init_per_group(_GroupName, Config) ->
Config.
end_per_group(_GroupName, Config) ->
Config.
init_per_testcase(_Func, Config) ->
Dog = test_server:timetrap(test_server:seconds(15)),
[{watchdog, Dog}|Config].
end_per_testcase(_Func, Config) ->
Dog = ?config(watchdog, Config),
test_server:timetrap_cancel(Dog).
-define(LOGVAR(Var), begin io:format(??Var" = ~p~n", [Var]) end).
basic(doc) ->
"Hello world";
basic(suite) ->
[];
basic(Config) when is_list(Config) ->
?line {ok,S} = gen_sctp:open(),
?line ok = gen_sctp:close(S),
ok.
xfer_min(doc) ->
"Minimal data transfer";
xfer_min(suite) ->
[];
xfer_min(Config) when is_list(Config) ->
?line Stream = 0,
?line Data = <<"The quick brown fox jumps over a lazy dog 0123456789">>,
?line Loopback = {127,0,0,1},
?line {ok,Sb} = gen_sctp:open([{type,seqpacket}]),
?line {ok,Pb} = inet:port(Sb),
?line ok = gen_sctp:listen(Sb, true),
?line {ok,Sa} = gen_sctp:open(),
?line {ok,Pa} = inet:port(Sa),
?line {ok,#sctp_assoc_change{state=comm_up,
error=0,
outbound_streams=SaOutboundStreams,
inbound_streams=SaInboundStreams,
assoc_id=SaAssocId}=SaAssocChange} =
gen_sctp:connect(Sa, Loopback, Pb, []),
?line {ok,{Loopback,
Pa,[],
#sctp_assoc_change{state=comm_up,
error=0,
outbound_streams=SbOutboundStreams,
inbound_streams=SbInboundStreams,
assoc_id=SbAssocId}}} =
gen_sctp:recv(Sb, infinity),
?line SaOutboundStreams = SbInboundStreams,
?line SbOutboundStreams = SaInboundStreams,
?line ok = gen_sctp:send(Sa, SaAssocId, 0, Data),
?line case gen_sctp:recv(Sb, infinity) of
{ok,{Loopback,
Pa,
[#sctp_sndrcvinfo{stream=Stream,
assoc_id=SbAssocId}],
Data}} -> ok;
{ok,{Loopback,
Pa,[],
#sctp_paddr_change{addr = {Loopback,_},
state = addr_available,
error = 0,
assoc_id = SbAssocId}}} ->
{ok,{Loopback,
Pa,
[#sctp_sndrcvinfo{stream=Stream,
assoc_id=SbAssocId}],
Data}} = gen_sctp:recv(Sb, infinity)
end,
?line ok = gen_sctp:send(Sb, SbAssocId, 0, Data),
?line {ok,{Loopback,
Pb,
[#sctp_sndrcvinfo{stream=Stream,
assoc_id=SaAssocId}],
Data}} =
gen_sctp:recv(Sa, infinity),
%%
?line ok = gen_sctp:eof(Sa, SaAssocChange),
?line {ok,{Loopback,
Pa,[],
#sctp_shutdown_event{assoc_id=SbAssocId}}} =
gen_sctp:recv(Sb, infinity),
?line {ok,{Loopback,
Pb,[],
#sctp_assoc_change{state=shutdown_comp,
error=0,
assoc_id=SaAssocId}}} =
gen_sctp:recv(Sa, infinity),
?line {ok,{Loopback,
Pa,[],
#sctp_assoc_change{state=shutdown_comp,
error=0,
assoc_id=SbAssocId}}} =
gen_sctp:recv(Sb, infinity),
?line ok = gen_sctp:close(Sa),
?line ok = gen_sctp:close(Sb),
?line receive
Msg -> test_server:fail({received,Msg})
after 17 -> ok
end,
ok.
xfer_active(doc) ->
"Minimal data transfer in active mode";
xfer_active(suite) ->
[];
xfer_active(Config) when is_list(Config) ->
?line Timeout = 2000,
?line Stream = 0,
?line Data = <<"The quick brown fox jumps over a lazy dog 0123456789">>,
?line Loopback = {127,0,0,1},
?line {ok,Sb} = gen_sctp:open([{active,true}]),
?line {ok,Pb} = inet:port(Sb),
?line ok = gen_sctp:listen(Sb, true),
?line {ok,Sa} = gen_sctp:open([{active,true}]),
?line {ok,Pa} = inet:port(Sa),
?line {ok,#sctp_assoc_change{state=comm_up,
error=0,
outbound_streams=SaOutboundStreams,
inbound_streams=SaInboundStreams,
assoc_id=SaAssocId}=SaAssocChange} =
gen_sctp:connect(Sa, Loopback, Pb, []),
?line io:format("Sa=~p, Pa=~p, Sb=~p, Pb=~p, SaAssocId=~p, "
"SaOutboundStreams=~p, SaInboundStreams=~p~n",
[Sa,Pa,Sb,Pb,SaAssocId,
SaOutboundStreams,SaInboundStreams]),
?line SbAssocId =
receive
{sctp,Sb,Loopback,Pa,
{[],
#sctp_assoc_change{state=comm_up,
error=0,
outbound_streams=SbOutboundStreams,
inbound_streams=SbInboundStreams,
assoc_id=SBAI}}} ->
?line SaOutboundStreams = SbInboundStreams,
?line SaInboundStreams = SbOutboundStreams,
SBAI
after Timeout ->
?line test_server:fail({unexpected,flush()})
end,
?line io:format("SbAssocId=~p~n", [SbAssocId]),
?line ok =
do_from_other_process(
fun () -> gen_sctp:send(Sa, SaAssocId, 0, Data) end),
?line receive
{sctp,Sb,Loopback,Pa,
{[#sctp_sndrcvinfo{stream=Stream,
assoc_id=SbAssocId}],
Data}} -> ok;
{sctp,Sb,Loopback,Pa,
{[],
#sctp_paddr_change{addr = {Loopback,_},
state = addr_available,
error = 0,
assoc_id = SbAssocId}}} ->
?line receive
{sctp,Sb,Loopback,Pa,
{[#sctp_sndrcvinfo{stream=Stream,
assoc_id=SbAssocId}],
Data}} -> ok
end
after Timeout ->
?line test_server:fail({unexpected,flush()})
end,
?line ok = gen_sctp:send(Sb, SbAssocId, 0, Data),
?line receive
{sctp,Sa,Loopback,Pb,
{[#sctp_sndrcvinfo{stream=Stream,
assoc_id=SaAssocId}],
Data}} -> ok
after Timeout ->
?line test_server:fail({unexpected,flush()})
end,
%%
?line ok = gen_sctp:abort(Sa, SaAssocChange),
?line receive
{sctp,Sb,Loopback,Pa,
{[],
#sctp_assoc_change{state=comm_lost,
assoc_id=SbAssocId}}} -> ok
after Timeout ->
?line test_server:fail({unexpected,flush()})
end,
?line ok = gen_sctp:close(Sb),
?line receive
{sctp,Sa,Loopback,Pb,
{[],
#sctp_assoc_change{state=comm_lost,
assoc_id=SaAssocId}}} -> ok
after Timeout ->
?line test_server:fail({unexpected,flush()})
end,
?line receive
{sctp_error,Sa,enotconn} -> ok % Solaris
after 17 -> ok %% Only happens on Solaris
end,
?line ok = gen_sctp:close(Sa),
%%
?line receive
Msg -> test_server:fail({unexpected,[Msg]++flush()})
after 17 -> ok
end,
ok.
def_sndrcvinfo(doc) ->
"Test that #sctp_sndrcvinfo{} parameters set on a socket "
"are used by gen_sctp:send/4";
def_sndrcvinfo(suite) ->
[];
def_sndrcvinfo(Config) when is_list(Config) ->
?line Loopback = {127,0,0,1},
?line Data = <<"What goes up, must come down.">>,
%%
?line S1 =
ok(gen_sctp:open(
0, [{sctp_default_send_param,#sctp_sndrcvinfo{ppid=17}}])),
?LOGVAR(S1),
?line P1 =
ok(inet:port(S1)),
?LOGVAR(P1),
?line #sctp_sndrcvinfo{ppid=17, context=0, timetolive=0, assoc_id=0} =
getopt(S1, sctp_default_send_param),
?line ok =
gen_sctp:listen(S1, true),
%%
?line S2 =
ok(gen_sctp:open()),
?LOGVAR(S2),
?line P2 =
ok(inet:port(S2)),
?LOGVAR(P2),
?line #sctp_sndrcvinfo{ppid=0, context=0, timetolive=0, assoc_id=0} =
getopt(S2, sctp_default_send_param),
%%
?line #sctp_assoc_change{
state=comm_up,
error=0,
assoc_id=S2AssocId} = S2AssocChange =
ok(gen_sctp:connect(S2, Loopback, P1, [])),
?LOGVAR(S2AssocChange),
?line case ok(gen_sctp:recv(S1)) of
{Loopback, P2,[],
#sctp_assoc_change{
state=comm_up,
error=0,
assoc_id=S1AssocId}} ->
?LOGVAR(S1AssocId)
end,
?line #sctp_sndrcvinfo{
ppid=17, context=0, timetolive=0, assoc_id=S1AssocId} =
getopt(
S1, sctp_default_send_param, #sctp_sndrcvinfo{assoc_id=S1AssocId}),
?line #sctp_sndrcvinfo{
ppid=0, context=0, timetolive=0, assoc_id=S2AssocId} =
getopt(
S2, sctp_default_send_param, #sctp_sndrcvinfo{assoc_id=S2AssocId}),
%%
?line ok =
gen_sctp:send(S1, S1AssocId, 1, <<"1: ",Data/binary>>),
?line case ok(gen_sctp:recv(S2)) of
{Loopback,P1,
[#sctp_sndrcvinfo{
stream=1, ppid=17, context=0, assoc_id=S2AssocId}],
<<"1: ",Data/binary>>} -> ok
end,
%%
?line ok =
setopt(
S1, sctp_default_send_param, #sctp_sndrcvinfo{ppid=18}),
?line ok =
setopt(
S1, sctp_default_send_param,
#sctp_sndrcvinfo{ppid=19, assoc_id=S1AssocId}),
?line #sctp_sndrcvinfo{
ppid=18, context=0, timetolive=0, assoc_id=0} =
getopt(S1, sctp_default_send_param),
?line #sctp_sndrcvinfo{
ppid=19, context=0, timetolive=0, assoc_id=S1AssocId} =
getopt(
S1, sctp_default_send_param, #sctp_sndrcvinfo{assoc_id=S1AssocId}),
%%
?line ok =
gen_sctp:send(S1, S1AssocId, 0, <<"2: ",Data/binary>>),
?line case ok(gen_sctp:recv(S2)) of
{Loopback,P1,
[#sctp_sndrcvinfo{
stream=0, ppid=19, context=0, assoc_id=S2AssocId}],
<<"2: ",Data/binary>>} -> ok
end,
?line ok =
gen_sctp:send(S2, S2AssocChange, 1, <<"3: ",Data/binary>>),
?line case ok(gen_sctp:recv(S1)) of
{Loopback,P2,
[#sctp_sndrcvinfo{
stream=1, ppid=0, context=0, assoc_id=S1AssocId}],
<<"3: ",Data/binary>>} -> ok;
{Loopback,P2,[],
#sctp_paddr_change{
addr={Loopback,_}, state=addr_available,
error=0, assoc_id=S1AssocId}} ->
?line case ok(gen_sctp:recv(S1)) of
{Loopback,P2,
[#sctp_sndrcvinfo{
stream=1, ppid=0, context=0,
assoc_id=S1AssocId}],
<<"3: ",Data/binary>>} -> ok
end
end,
?line ok =
do_from_other_process(
fun () ->
gen_sctp:send(
S2,
#sctp_sndrcvinfo{stream=0, ppid=20, assoc_id=S2AssocId},
<<"4: ",Data/binary>>)
end),
?line case ok(do_from_other_process(fun() -> gen_sctp:recv(S1) end)) of
{Loopback,P2,
[#sctp_sndrcvinfo{
stream=0, ppid=20, context=0, assoc_id=S1AssocId}],
<<"4: ",Data/binary>>} -> ok
end,
%%
?line ok =
gen_sctp:close(S1),
?line ok =
gen_sctp:close(S2),
?line receive
Msg ->
test_server:fail({received,Msg})
after 17 -> ok
end,
ok.
getopt(S, Opt) ->
{ok,[{Opt,Val}]} = inet:getopts(S, [Opt]),
Val.
getopt(S, Opt, Param) ->
{ok,[{Opt,Val}]} = inet:getopts(S, [{Opt,Param}]),
Val.
setopt(S, Opt, Val) ->
inet:setopts(S, [{Opt,Val}]).
ok({ok,X}) ->
io:format("OK[~w]: ~p~n", [self(),X]),
X.
log(X) ->
io:format("LOG[~w]: ~p~n", [self(),X]),
X.
flush() ->
receive
Msg ->
[Msg|flush()]
after 17 ->
[]
end.
api_open_close(doc) ->
"Test the API function open/1,2 and close/1";
api_open_close(suite) ->
[];
api_open_close(Config) when is_list(Config) ->
?line {ok,S1} = gen_sctp:open(0),
?line {ok,P} = inet:port(S1),
?line ok = gen_sctp:close(S1),
?line {ok,S2} = gen_sctp:open(P),
?line {ok,P} = inet:port(S2),
?line ok = gen_sctp:close(S2),
?line {ok,S3} = gen_sctp:open([{port,P}]),
?line {ok,P} = inet:port(S3),
?line ok = gen_sctp:close(S3),
?line {ok,S4} = gen_sctp:open(P, []),
?line {ok,P} = inet:port(S4),
?line ok = gen_sctp:close(S4),
?line {ok,S5} = gen_sctp:open(P, [{ifaddr,any}]),
?line {ok,P} = inet:port(S5),
?line ok = gen_sctp:close(S5),
?line ok = gen_sctp:close(S5),
?line try gen_sctp:close(0)
catch error:badarg -> ok
end,
?line try gen_sctp:open({})
catch error:badarg -> ok
end,
?line try gen_sctp:open(-1)
catch error:badarg -> ok
end,
?line try gen_sctp:open(65536)
catch error:badarg -> ok
end,
?line try gen_sctp:open(make_ref(), [])
catch error:badarg -> ok
end,
?line try gen_sctp:open(0, {})
catch error:badarg -> ok
end,
?line try gen_sctp:open(0, [make_ref()])
catch error:badarg -> ok
end,
?line try gen_sctp:open([{invalid_option,0}])
catch error:badarg -> ok
end,
?line try gen_sctp:open(0, [{mode,invalid_mode}])
catch error:badarg -> ok
end,
ok.
api_listen(doc) ->
"Test the API function listen/2";
api_listen(suite) ->
[];
api_listen(Config) when is_list(Config) ->
?line Localhost = {127,0,0,1},
?line try gen_sctp:listen(0, true)
catch error:badarg -> ok
end,
?line {ok,S} = gen_sctp:open(),
?line {ok,Pb} = inet:port(S),
?line try gen_sctp:listen(S, not_allowed_for_listen)
catch error:badarg -> ok
end,
?line ok = gen_sctp:close(S),
?line {error,closed} = gen_sctp:listen(S, true),
?line {ok,Sb} = gen_sctp:open(Pb),
?line {ok,Sa} = gen_sctp:open(),
?line case gen_sctp:connect(Sa, localhost, Pb, []) of
{error,econnrefused} ->
?line {ok,{Localhost,
Pb,[],
#sctp_assoc_change{
state=comm_lost}}} =
gen_sctp:recv(Sa, infinity);
{error,#sctp_assoc_change{state=cant_assoc}} -> ok
end,
?line ok = gen_sctp:listen(Sb, true),
?line {ok,#sctp_assoc_change{state=comm_up,
error=0}} =
gen_sctp:connect(Sa, localhost, Pb, []),
?line ok = gen_sctp:close(Sa),
?line ok = gen_sctp:close(Sb),
ok.
api_connect_init(doc) ->
"Test the API function connect_init/4";
api_connect_init(suite) ->
[];
api_connect_init(Config) when is_list(Config) ->
?line Localhost = {127,0,0,1},
?line {ok,S} = gen_sctp:open(),
?line {ok,Pb} = inet:port(S),
?line try gen_sctp:connect_init(S, Localhost, not_allowed_for_port, [])
catch error:badarg -> ok
end,
?line try gen_sctp:connect_init(S, Localhost, 12345, not_allowed_for_opts)
catch error:badarg -> ok
end,
?line ok = gen_sctp:close(S),
?line {error,closed} = gen_sctp:connect_init(S, Localhost, 12345, []),
?line {ok,Sb} = gen_sctp:open(Pb),
?line {ok,Sa} = gen_sctp:open(),
?line case gen_sctp:connect_init(Sa, localhost, Pb, []) of
{error,econnrefused} ->
?line {ok,{Localhost,
Pb,[],
#sctp_assoc_change{state=comm_lost}}} =
gen_sctp:recv(Sa, infinity);
ok ->
?line {ok,{Localhost,
Pb,[],
#sctp_assoc_change{state=cant_assoc}}} =
gen_sctp:recv(Sa, infinity)
end,
?line ok = gen_sctp:listen(Sb, true),
?line case gen_sctp:connect_init(Sa, localhost, Pb, []) of
ok ->
?line {ok,{Localhost,
Pb,[],
#sctp_assoc_change{
state = comm_up}}} =
gen_sctp:recv(Sa, infinity)
end,
?line ok = gen_sctp:close(Sa),
?line ok = gen_sctp:close(Sb),
ok.
api_opts(doc) ->
"Test socket options";
api_opts(suite) ->
[];
api_opts(Config) when is_list(Config) ->
?line Sndbuf = 32768,
?line Recbuf = 65536,
?line {ok,S} = gen_sctp:open(0),
?line OSType = os:type(),
?line case {inet:setopts(S, [{linger,{true,2}}]),OSType} of
{ok,_} ->
ok;
{{error,einval},{unix,sunos}} ->
ok
end,
?line ok = inet:setopts(S, [{sndbuf,Sndbuf}]),
?line ok = inet:setopts(S, [{recbuf,Recbuf}]),
?line case inet:getopts(S, [sndbuf]) of
{ok,[{sndbuf,SB}]} when SB >= Sndbuf -> ok
end,
?line case inet:getopts(S, [recbuf]) of
{ok,[{recbuf,RB}]} when RB >= Recbuf -> ok
end.
implicit_inet6(Config) when is_list(Config) ->
?line Hostname = ok(inet:gethostname()),
?line
case gen_sctp:open(0, [inet6]) of
{ok,S1} ->
?line
case inet:getaddr(Hostname, inet6) of
{ok,Host} ->
?line Loopback = {0,0,0,0,0,0,0,1},
?line io:format("~s ~p~n", ["Loopback",Loopback]),
?line implicit_inet6(S1, Loopback),
?line ok = gen_sctp:close(S1),
%%
?line Localhost =
ok(inet:getaddr("localhost", inet6)),
?line io:format("~s ~p~n", ["localhost",Localhost]),
?line S2 =
ok(gen_sctp:open(0, [{ip,Localhost}])),
?line implicit_inet6(S2, Localhost),
?line ok = gen_sctp:close(S2),
%%
?line io:format("~s ~p~n", [Hostname,Host]),
?line S3 =
ok(gen_sctp:open(0, [{ifaddr,Host}])),
?line implicit_inet6(S3, Host),
?line ok = gen_sctp:close(S1);
{error,eafnosupport} ->
?line ok = gen_sctp:close(S1),
{skip,"Can not look up IPv6 address"}
end;
_ ->
{skip,"IPv6 not supported"}
end.
implicit_inet6(S1, Addr) ->
?line ok = gen_sctp:listen(S1, true),
?line P1 = ok(inet:port(S1)),
?line S2 = ok(gen_sctp:open(0, [inet6])),
?line P2 = ok(inet:port(S2)),
?line #sctp_assoc_change{state=comm_up} =
ok(gen_sctp:connect(S2, Addr, P1, [])),
?line case ok(gen_sctp:recv(S1)) of
{Addr,P2,[],#sctp_assoc_change{state=comm_up}} ->
ok
end,
?line case ok(inet:sockname(S1)) of
{Addr,P1} -> ok;
{{0,0,0,0,0,0,0,0},P1} -> ok
end,
?line case ok(inet:sockname(S2)) of
{Addr,P2} -> ok;
{{0,0,0,0,0,0,0,0},P2} -> ok
end,
?line ok = gen_sctp:close(S2).
basic_stream(doc) ->
"Hello world stream socket";
basic_stream(suite) ->
[];
basic_stream(Config) when is_list(Config) ->
?line {ok,S} = gen_sctp:open([{type,stream}]),
?line ok = gen_sctp:listen(S, true),
?line ok =
do_from_other_process(
fun () -> gen_sctp:listen(S, 10) end),
?line ok = gen_sctp:close(S),
ok.
xfer_stream_min(doc) ->
"Minimal data transfer";
xfer_stream_min(suite) ->
[];
xfer_stream_min(Config) when is_list(Config) ->
?line Stream = 0,
?line Data = <<"The quick brown fox jumps over a lazy dog 0123456789">>,
?line Loopback = {127,0,0,1},
?line {ok,Sb} = gen_sctp:open([{type,seqpacket}]),
?line {ok,Pb} = inet:port(Sb),
?line ok = gen_sctp:listen(Sb, true),
?line {ok,Sa} = gen_sctp:open([{type,stream}]),
?line {ok,Pa} = inet:port(Sa),
?line {ok,#sctp_assoc_change{state=comm_up,
error=0,
outbound_streams=SaOutboundStreams,
inbound_streams=SaInboundStreams,
assoc_id=SaAssocId}} =
gen_sctp:connect(Sa, Loopback, Pb, []),
?line {ok,{Loopback,
Pa,[],
#sctp_assoc_change{state=comm_up,
error=0,
outbound_streams=SbOutboundStreams,
inbound_streams=SbInboundStreams,
assoc_id=SbAssocId}}} =
gen_sctp:recv(Sb, infinity),
?line SaOutboundStreams = SbInboundStreams,
?line SbOutboundStreams = SaInboundStreams,
?line ok = gen_sctp:send(Sa, SaAssocId, 0, Data),
?line case gen_sctp:recv(Sb, infinity) of
{ok,{Loopback,
Pa,
[#sctp_sndrcvinfo{stream=Stream,
assoc_id=SbAssocId}],
Data}} -> ok;
{ok,{Loopback,
Pa,[],
#sctp_paddr_change{addr = {Loopback,_},
state = addr_available,
error = 0,
assoc_id = SbAssocId}}} ->
{ok,{Loopback,
Pa,
[#sctp_sndrcvinfo{stream=Stream,
assoc_id=SbAssocId}],
Data}} = gen_sctp:recv(Sb, infinity)
end,
?line ok =
do_from_other_process(
fun () -> gen_sctp:send(Sb, SbAssocId, 0, Data) end),
?line {ok,{Loopback,
Pb,
[#sctp_sndrcvinfo{stream=Stream,
assoc_id=SaAssocId}],
Data}} =
gen_sctp:recv(Sa, infinity),
%%
?line ok = gen_sctp:close(Sa),
?line {ok,{Loopback,
Pa,[],
#sctp_shutdown_event{assoc_id=SbAssocId}}} =
gen_sctp:recv(Sb, infinity),
?line {ok,{Loopback,
Pa,[],
#sctp_assoc_change{state=shutdown_comp,
error=0,
assoc_id=SbAssocId}}} =
gen_sctp:recv(Sb, infinity),
?line ok = gen_sctp:close(Sb),
?line receive
Msg -> test_server:fail({received,Msg})
after 17 -> ok
end,
ok.
do_from_other_process(Fun) ->
Parent = self(),
Ref = make_ref(),
Child =
spawn(fun () ->
try Fun() of
Result ->
Parent ! {Ref,Result}
catch
Class:Reason ->
Stacktrace = erlang:get_stacktrace(),
Parent ! {Ref,Class,Reason,Stacktrace}
end
end),
Mref = erlang:monitor(process, Child),
receive
{Ref,Result} ->
receive {'DOWN',Mref,_,_,_} -> Result end;
{Ref,Class,Reason,Stacktrace} ->
receive {'DOWN',Mref,_,_,_} ->
erlang:raise(Class, Reason, Stacktrace)
end;
{'DOWN',Mref,_,_,Reason} ->
erlang:exit(Reason)
end.
peeloff(doc) ->
"Peel off an SCTP stream socket";
peeloff(suite) ->
[];
peeloff(Config) when is_list(Config) ->
?line Addr = {127,0,0,1},
?line Stream = 0,
?line Timeout = 333,
?line S1 = socket_start(Addr, Timeout),
?line P1 = socket_call(S1, port),
?line Socket1 = socket_call(S1, socket),
?line ok = socket_call(S1, {listen,true}),
?line S2 = socket_start(Addr, Timeout),
?line P2 = socket_call(S2, port),
?line Socket2 = socket_call(S2, socket),
%%
?line H_a = socket_req(S1, recv_assoc),
?line {S2Ai,Sa,Sb} = socket_call(S2, {connect,Addr,P1,[]}),
?line {S1Ai,Sb,Sa,Addr,P2} = socket_resp(H_a),
%%
?line H_b = socket_req(S1, recv),
?line ok = socket_call(S2, {send,S2Ai,Stream,<<"Data H_b">>}),
?line {Addr,P2,S1Ai,Stream,<<"Data H_b">>} = socket_resp(H_b),
?line H_c = socket_req(S1, {recv,Socket2}),
?line ok =
socket_call(S2, {send,Socket1,S1Ai,Stream,<<"Data H_c">>}),
?line {Addr,P1,S2Ai,Stream,<<"Data H_c">>} = socket_resp(H_c),
%%
?line S3 = socket_peeloff(Socket1, S1Ai, Timeout),
?line P3 = socket_call(S3, port),
?line Socket3 = socket_call(S3, socket),
?line S3Ai = S1Ai,
%%
?line H_d = socket_req(S2, recv),
?line ok = socket_call(S3, {send,S3Ai,Stream,<<"Data H_d">>}),
?line {Addr,P3,S2Ai,Stream,<<"Data H_d">>} = socket_resp(H_d),
?line ok = socket_call(S3, {send,Socket2,S2Ai,Stream,<<"Data S2">>}),
?line {Addr,P2,S3Ai,Stream,<<"Data S2">>} = socket_call(S2, {recv,Socket3}),
%%
?line inet:i(sctp),
?line ok = socket_stop(S1),
?line ok = socket_stop(S2),
?line {Addr,P2,[],#sctp_shutdown_event{assoc_id=S1Ai}} =
ok(socket_stop(S3)),
ok.
%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% socket gen_server ultra light
socket_peeloff(Socket, AssocId, Timeout) ->
Starter =
fun () ->
{ok,NewSocket} =
gen_sctp:peeloff(Socket, AssocId),
NewSocket
end,
socket_starter(Starter, Timeout).
socket_start(Addr, Timeout) ->
Starter =
fun () ->
{ok,Socket} =
gen_sctp:open([{type,seqpacket},{ifaddr,Addr}]),
Socket
end,
socket_starter(Starter, Timeout).
socket_starter(Starter, Timeout) ->
Parent = self(),
Owner =
spawn_link(
fun () ->
socket_starter(Starter(), Timeout, Parent)
end),
io:format("Started socket ~w.~n", [Owner]),
Owner.
socket_starter(Socket, Timeout, Parent) ->
try
Handler = socket_handler(Socket, Timeout),
socket_loop(Socket, Timeout, Parent, Handler)
catch
Class:Reason ->
Stacktrace = erlang:get_stacktrace(),
io:format(?MODULE_STRING":socket exception ~w:~w at~n"
"~p.~n", [Class,Reason,Stacktrace]),
erlang:raise(Class, Reason, Stacktrace)
end.
socket_loop(Socket, Timeout, Parent, Handler) ->
receive
{Parent,Ref} -> % socket_stop()
Result =
case log(gen_sctp:recv(Socket, Timeout)) of
{error,timeout} -> ok;
R -> R
end,
ok = gen_sctp:close(Socket),
Parent ! {self(),Ref, Result};
{Parent,Ref,Msg} ->
Parent ! {self(),Ref,Handler(Msg)},
socket_loop(Socket, Timeout, Parent, Handler)
end.
socket_handler(Socket, Timeout) ->
fun ({listen,Listen}) ->
gen_sctp:listen(Socket, Listen);
(port) ->
ok(inet:port(Socket));
(socket) ->
Socket;
(recv_assoc) ->
{AssocAddr,AssocPort,[],
#sctp_assoc_change{state=comm_up,
error=0,
outbound_streams=Os,
inbound_streams=Is,
assoc_id=AssocId}} =
ok(gen_sctp:recv(Socket, infinity)),
case log(gen_sctp:recv(Socket, Timeout)) of
{ok,AssocAddr,AssocPort,[],
#sctp_paddr_change{addr = {AssocAddr,AssocPort},
state = addr_available,
error = 0,
assoc_id = AssocId}} -> ok;
{error,timeout} -> ok
end,
{AssocId,Os,Is,AssocAddr,AssocPort};
({connect,ConAddr,ConPort,ConOpts}) ->
#sctp_assoc_change{state=comm_up,
error=0,
outbound_streams=Os,
inbound_streams=Is,
assoc_id=AssocId} =
ok(gen_sctp:connect(Socket, ConAddr, ConPort, ConOpts)),
case log(gen_sctp:recv(Socket, Timeout)) of
{ok,ConAddr,ConPort,[],
#sctp_paddr_change{addr = {ConAddr,ConPort},
state = addr_available,
error = 0,
assoc_id = AssocId}} -> ok;
{error,timeout} -> ok
end,
{AssocId,Os,Is};
({send,AssocId,Stream,Data}) ->
gen_sctp:send(Socket, AssocId, Stream, Data);
({send,S,AssocId,Stream,Data}) ->
gen_sctp:send(S, AssocId, Stream, Data);
(recv) ->
{Addr,Port,
[#sctp_sndrcvinfo{stream=Stream,assoc_id=AssocId}],Data} =
ok(gen_sctp:recv(Socket, infinity)),
{Addr,Port,AssocId,Stream,Data};
({recv,S}) ->
{Addr,Port,
[#sctp_sndrcvinfo{stream=Stream,assoc_id=AssocId}],Data} =
ok(gen_sctp:recv(S, infinity)),
{Addr,Port,AssocId,Stream,Data}
end.
socket_stop(Handler) ->
Mref = erlang:monitor(process, Handler),
Handler ! {self(),Mref},
receive
{Handler,Mref,Result} ->
receive {'DOWN',Mref,_,_,_} -> Result end;
{'DOWN',Mref,_,_,Error} ->
exit(Error)
end.
socket_call(Handler, Request) ->
socket_resp(socket_req(Handler, Request)).
socket_req(Handler, Request) ->
Mref = erlang:monitor(process, Handler),
Handler ! {self(),Mref,Request},
{Handler,Mref}.
socket_resp({Handler,Mref}) ->
receive
{'DOWN',Mref,_,_,Error} ->
exit(Error);
{Handler,Mref,Reply} ->
erlang:demonitor(Mref),
receive {'DOWN',Mref,_,_,_} -> ok after 0 -> ok end,
Reply
end.
