96 lines
2.7 KiB
C++
96 lines
2.7 KiB
C++
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/*
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* Copyright (c) 2007 INRIA
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation;
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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*/
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#include "ns3/assert.h"
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#include "ns3/node.h"
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#include "ipv4.h"
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namespace ns3 {
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const InterfaceId Ipv4::iid = MakeInterfaceId ("Ipv4", Object::iid);
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Ipv4::Ipv4 ()
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{
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SetInterfaceId (Ipv4::iid);
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}
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Ipv4::~Ipv4 ()
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{}
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uint32_t
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Ipv4::GetIfIndexByAddress (Ptr<Node> node, Ipv4Address a, Ipv4Mask amask)
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{
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Ptr<Ipv4> ipv4 = node->QueryInterface<Ipv4> (Ipv4::iid);
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NS_ASSERT_MSG (ipv4, "Ipv4::GetIfIndexByAddress: No Ipv4 interface");
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for (uint32_t i = 0; i < ipv4->GetNInterfaces (); i++)
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{
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if (ipv4->GetAddress (i).CombineMask(amask) == a.CombineMask(amask) )
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{
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return i;
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}
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}
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// Mapping not found
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NS_ASSERT_MSG (false, "Ipv4::GetIfIndexByAddress failed");
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return 0;
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}
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//
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// XXX BUGBUG I don't think this is really the right approach here. The call
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// to GetRoute () filters down into Ipv4L3Protocol where it translates into
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// a call into the Ipv4 static routing package. This bypasses any other
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// routing packages. At a minimum, the name is misleading.
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//
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bool
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Ipv4::GetRouteToDestination (
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Ptr<Node> node,
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Ipv4Route& route,
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Ipv4Address a,
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Ipv4Mask amask)
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{
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Ipv4Route tempRoute;
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Ptr<Ipv4> ipv4 = node->QueryInterface<Ipv4> (Ipv4::iid);
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NS_ASSERT_MSG (ipv4, "Ipv4::GetRouteToDestination: No Ipv4 interface");
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for (uint32_t i = 0; i < ipv4->GetNRoutes (); i++)
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{
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tempRoute = ipv4->GetRoute (i);
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// Host route found
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if ( tempRoute.IsNetwork () == false && tempRoute.GetDest () == a )
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{
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route = tempRoute;
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return true;
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}
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else if ( tempRoute.IsNetwork () &&
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tempRoute.GetDestNetwork () == a.CombineMask(amask) )
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{
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route = tempRoute;
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return true;
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}
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else if ( tempRoute.IsDefault () )
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{
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route = tempRoute;
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return true;
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}
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}
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return false;
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}
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} // namespace ns3
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