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/* -*- Mode: IDL; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "nsISupports.idl"
#include "nsINetAddr.idl"

native NetAddr(mozilla::net::NetAddr);
[ptr] native NetAddrPtr(mozilla::net::NetAddr);


/**
 * Filters are created and run on the parent, and filter all UDP packets, both
 * ingoing and outgoing. The child must specify the name of a recognized filter
 * in order to create a UDP socket.
 */
[uuid(24f20de4-09e9-42ab-947a-0d6a3d103d59)]
interface nsIUDPSocketFilter : nsISupports
{
  const long SF_INCOMING = 0;
  const long SF_OUTGOING = 1;

  bool filterPacket([const]in NetAddrPtr remote_addr,
                    [const, array, size_is(len)]in uint8_t data,
                    in unsigned long len,
                    in long direction);
};

/**
 * Factory of a specified filter.
 */
[uuid(81ee76c6-4753-4125-9c8c-290ed9ba62fb)]
interface nsIUDPSocketFilterHandler : nsISupports
{
   nsIUDPSocketFilter newFilter();
};

%{C++
/**
 * Filter handlers are registered with XPCOM under the following CONTRACTID prefix:
 */
#define NS_NETWORK_UDP_SOCKET_FILTER_HANDLER_PREFIX "@mozilla.org/network/udp-filter-handler;1?name="
%}