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%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2007-2016. 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%
%%
%% SCTP protocol contribution by Leonid Timochouk and Serge Aleynikov.
%% See also: $ERL_TOP/lib/kernel/AUTHORS
%%
-module(inet6_sctp).
%% This module provides functions for communicating with
%% sockets using the SCTP protocol. The implementation assumes that
%% the OS kernel supports SCTP providing user-level SCTP Socket API:
%% http://tools.ietf.org/html/draft-ietf-tsvwg-sctpsocket-13
-include("inet_sctp.hrl").
-include("inet_int.hrl").
-define(PROTO, sctp).
-define(FAMILY, inet6).
-export([getserv/1,getaddr/1,getaddr/2,translate_ip/1]).
-export([open/1,close/1,listen/2,peeloff/2,connect/5]).
-export([sendmsg/3,send/4,recv/2]).
getserv(Port) when is_integer(Port) -> {ok, Port};
getserv(Name) when is_atom(Name) -> inet:getservbyname(Name, ?PROTO);
getserv(_) -> {error,einval}.
getaddr(Address) -> inet:getaddr(Address, ?FAMILY).
getaddr(Address, Timer) -> inet:getaddr_tm(Address, ?FAMILY, Timer).
translate_ip(IP) -> inet:translate_ip(IP, ?FAMILY).
open(Opts) ->
case inet:sctp_options(Opts, ?MODULE) of
{ok,#sctp_opts{fd=Fd,ifaddr=Addr,port=Port,type=Type,opts=SOs}} ->
inet:open(Fd, Addr, Port, SOs, ?PROTO, ?FAMILY, Type, ?MODULE);
Error -> Error
end.
close(S) ->
prim_inet:close(S).
listen(S, Flag) ->
prim_inet:listen(S, Flag).
peeloff(S, AssocId) ->
case prim_inet:peeloff(S, AssocId) of
{ok, NewS}=Result ->
inet_db:register_socket(NewS, ?MODULE),
Result;
Error -> Error
end.
connect(S, Addr, Port, Opts, Timer) ->
inet_sctp:connect(S, Addr, Port, Opts, Timer).
sendmsg(S, SRI, Data) ->
prim_inet:sendmsg(S, SRI, Data).
send(S, AssocId, Stream, Data) ->
case prim_inet:getopts(
S,
[{sctp_default_send_param,#sctp_sndrcvinfo{assoc_id=AssocId}}]) of
{ok,
[{sctp_default_send_param,
#sctp_sndrcvinfo{
flags=Flags, context=Context, ppid=PPID, timetolive=TTL}}]} ->
prim_inet:sendmsg(
S,
#sctp_sndrcvinfo{
flags=Flags, context=Context, ppid=PPID, timetolive=TTL,
assoc_id=AssocId, stream=Stream},
Data);
_ ->
prim_inet:sendmsg(
S, #sctp_sndrcvinfo{assoc_id=AssocId, stream=Stream}, Data)
end.
recv(S, Timeout) ->
prim_inet:recvfrom(S, 0, Timeout).
|
