F5/unison
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

RecvReply changed to respond properly to receive RREP with origin address != receiver address, but == local address of another interface

Browse Source
This commit is contained in:
Borovkova Elena
2009-07-30 11:14:47 +04:00
parent cc4a5ac145
commit bfec349d77
6 changed files with 31 additions and 31 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
src/internet-stack/ipv4-interface.cc
View File

@@ -178,7 +178,7 @@ Ipv4Interface::SetForwarding (bool val)
void
Ipv4Interface::Send (Ptr<Packet> p, Ipv4Address dest)
{
NS_LOG_FUNCTION (dest << *p);
NS_LOG_UNCOND (dest << *p);
if (!IsUp())
{
return;
@@ -188,6 +188,7 @@ Ipv4Interface::Send (Ptr<Packet> p, Ipv4Address dest)
{
// XXX additional checks needed here (such as whether multicast
// goes to loopback)?
NS_LOG_UNCOND ("Ipv4Interface::Send loopback");
m_device->Send (p, m_device->GetBroadcast (),
Ipv4L3Protocol::PROT_NUMBER);
return;
@@ -197,6 +198,7 @@ Ipv4Interface::Send (Ptr<Packet> p, Ipv4Address dest)
{
if (dest == (*i).GetLocal ())
{
NS_LOG_UNCOND ("to local");
Ptr<Ipv4L3Protocol> ipv4 = m_node->GetObject<Ipv4L3Protocol> ();
ipv4->Receive (m_device, p, Ipv4L3Protocol::PROT_NUMBER,
@@ -209,19 +211,19 @@ Ipv4Interface::Send (Ptr<Packet> p, Ipv4Address dest)
}
if (m_device->NeedsArp ())
{
NS_LOG_LOGIC ("Needs ARP" << " " << dest);
NS_LOG_UNCOND ("Needs ARP" << " " << dest);
Ptr<ArpL3Protocol> arp = m_node->GetObject<ArpL3Protocol> ();
Address hardwareDestination;
bool found = false;
if (dest.IsBroadcast ())
{
NS_LOG_LOGIC ("All-network Broadcast");
NS_LOG_UNCOND ("All-network Broadcast");
hardwareDestination = m_device->GetBroadcast ();
found = true;
}
else if (dest.IsMulticast ())
{
NS_LOG_LOGIC ("IsMulticast");
NS_LOG_UNCOND ("IsMulticast");
NS_ASSERT_MSG(m_device->IsMulticast (),
"ArpIpv4Interface::SendTo (): Sending multicast packet over "
"non-multicast device");
@@ -235,7 +237,7 @@ Ipv4Interface::Send (Ptr<Packet> p, Ipv4Address dest)
{
if (dest.IsSubnetDirectedBroadcast ((*i).GetMask ()))
{
NS_LOG_LOGIC ("Subnetwork Broadcast");
NS_LOG_UNCOND ("Subnetwork Broadcast hardwareDestination " << hardwareDestination);
hardwareDestination = m_device->GetBroadcast ();
found = true;
break;
@@ -243,21 +245,21 @@ Ipv4Interface::Send (Ptr<Packet> p, Ipv4Address dest)
}
if (!found)
{
NS_LOG_LOGIC ("ARP Lookup");
NS_LOG_UNCOND ("ARP Lookup");
found = arp->Lookup (p, dest, m_device, m_cache, &hardwareDestination);
}
}
if (found)
{
NS_LOG_LOGIC ("Address Resolved. Send.");
NS_LOG_UNCOND ("Address Resolved. Send.");
m_device ->Send (p, hardwareDestination,
Ipv4L3Protocol::PROT_NUMBER);
}
}
else
{
NS_LOG_LOGIC ("Doesn't need ARP");
NS_LOG_UNCOND ("Doesn't need ARP");
m_device->Send (p, m_device->GetBroadcast (),
Ipv4L3Protocol::PROT_NUMBER);
}

5
src/internet-stack/ipv4-l3-protocol.cc
View File

@@ -390,9 +390,9 @@ void
Ipv4L3Protocol::Receive( Ptr<NetDevice> device, Ptr<const Packet> p, uint16_t protocol, const Address &from,
const Address &to, NetDevice::PacketType packetType)
{
NS_LOG_FUNCTION (this << &device << p << protocol << from);
NS_LOG_UNCOND ("Ipv4L3Protocol::Receive" << &device << p << protocol << from);
NS_LOG_LOGIC ("Packet from " << from << " received on node " <<
NS_LOG_UNCOND ("Packet from " << from << " received on node " <<
m_node->GetId ());
uint32_t interface = 0;
@@ -430,6 +430,7 @@ Ipv4L3Protocol::Receive( Ptr<NetDevice> device, Ptr<const Packet> p, uint16_t pr
if (!ipHeader.IsChecksumOk ())
{
NS_LOG_UNCOND("bad check sum");
m_dropTrace (packet);
return;
}

29
src/internet-stack/raw-socket-impl.cc
View File

@@ -194,14 +194,15 @@ RawSocketImpl::SendTo (Ptr<Packet> packet, uint32_t flags, const Address &toAddr
}
void
RawSocketImpl::SendByInterface (Ptr<Packet> packet, Ptr<const Ipv4Route> route)
RawSocketImpl::SendByInterface (Ptr<Packet> p, Ptr<const Ipv4Route> route)
{
NS_ASSERT(m_node != 0);
Ipv4Header ipv4Header;
Ptr<Packet> packet = p->Copy();
packet->PeekHeader(ipv4Header);
Ipv4Address source = ipv4Header.GetSource ();
Ipv4Address destination = ipv4Header.GetDestination ();
NS_LOG_UNCOND ("RawSocketImpl::SendByInterface to " << destination);
NS_LOG_UNCOND ("RawSocketImpl::SendByInterface to " << destination << " from " << source);
// Handle a few cases:
// 1) packet is destined to limited broadcast address
@@ -224,8 +225,9 @@ RawSocketImpl::SendByInterface (Ptr<Packet> packet, Ptr<const Ipv4Route> route)
}
// 2) check: packet is destined to a subnet-directed broadcast address
uint32_t ifaceIndex = 0;
bool result = false;
uint32_t ifaceIndex = 0;
NS_LOG_UNCOND("number of interfaces " << m_interfaces.size ());
for (std::list< Ptr<Ipv4Interface> >::iterator ifaceIter = m_interfaces.begin (); ifaceIter != m_interfaces.end (); ifaceIter++, ifaceIndex++)
{
Ptr<Ipv4Interface> outInterface = *ifaceIter;
@@ -234,19 +236,14 @@ RawSocketImpl::SendByInterface (Ptr<Packet> packet, Ptr<const Ipv4Route> route)
Ipv4InterfaceAddress ifAddr = m_ipv4->GetAddress (ifaceIndex, j);
NS_LOG_UNCOND ("Testing address " << ifAddr.GetLocal () << " with mask " << ifAddr.GetMask ());
if (destination.IsSubnetDirectedBroadcast (ifAddr.GetMask ()) &&
destination.CombineMask (ifAddr.GetMask ()) == ifAddr.GetLocal ().CombineMask (ifAddr.GetMask ()) )
{
NS_LOG_UNCOND ("RawSocketImpl::Send case 2: subnet directed bcast to " << ifAddr.GetLocal ());
if (ifAddr.GetLocal() != loopback)
(destination.CombineMask (ifAddr.GetMask ()) == ifAddr.GetLocal ().CombineMask (ifAddr.GetMask ())) )
if ( (ifAddr.GetLocal() != loopback)/* && (ifAddr.GetLocal() != source)*/)
{
Ptr<Packet> copy = packet->Copy();
copy->RemoveHeader(ipv4Header);
ipv4Header.SetSource(ifAddr.GetLocal());
copy->AddHeader(ipv4Header);
outInterface->Send (copy, destination);
NS_LOG_UNCOND ("Send case 2: subnet directed bcast to " << ifAddr.GetLocal ());
Ptr<Packet> packetCopy = packet->Copy ();
outInterface->Send (packetCopy, destination);
result = true;
}
}
}
}
if(result) return;
@@ -268,7 +265,7 @@ RawSocketImpl::SendByInterface (Ptr<Packet> packet, Ptr<const Ipv4Route> route)
if (outInterface->IsUp ())
{
NS_LOG_UNCOND ("Send to gateway " << route->GetGateway ());
outInterface->Send (packet, route->GetGateway ());
outInterface->Send (p, route->GetGateway ());
}
else
{
@@ -304,14 +301,14 @@ RawSocketImpl::GetRxAvailable (void) const
Ptr<Packet>
RawSocketImpl::Recv (uint32_t maxSize, uint32_t flags)
{
NS_LOG_FUNCTION (this << maxSize << flags);
NS_LOG_UNCOND ("RawSocketImpl::Recv" << maxSize << flags);
Address tmp;
return RecvFrom (maxSize, flags, tmp);
}
Ptr<Packet>
RawSocketImpl::RecvFrom (uint32_t maxSize, uint32_t flags, Address &fromAddress)
{
NS_LOG_FUNCTION (this << " maxSize " << maxSize << " flags " << flags << " address " <<fromAddress);
NS_LOG_UNCOND ("RawSocketImpl::RecvFrom" << " maxSize " << maxSize << " flags " << flags << " address " <<fromAddress);
if (m_recv.empty ())
{
return 0;