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- Add locking to ICMPSendDatagram

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svn path=/branches/aicom-network-branch/; revision=45004
This commit is contained in:
Cameron Gutman 2010-01-08 18:10:05 +00:00
parent fb4eec0d30
commit 05a505aac8
1 changed files with 15 additions and 0 deletions
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15
lib/drivers/ip/network/icmp.c
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@ -159,6 +159,7 @@ NTSTATUS ICMPSendDatagram(
USHORT RemotePort;
NTSTATUS Status;
PNEIGHBOR_CACHE_ENTRY NCE;
KIRQL OldIrql;
TI_DbgPrint(MID_TRACE,("Sending Datagram(%x %x %x %d)\n",
AddrFile, ConnInfo, BufferData, DataSize));
@ -178,6 +179,8 @@ NTSTATUS ICMPSendDatagram(
TI_DbgPrint(MID_TRACE,("About to get route to destination\n"));
LockObject(AddrFile, &OldIrql);
LocalAddress = AddrFile->Address;
if (AddrIsUnspecified(&LocalAddress))
{
@ -186,14 +189,20 @@ NTSTATUS ICMPSendDatagram(
* interface we're sending over
*/
if(!(NCE = RouteGetRouteToDestination( &RemoteAddress )))
{
UnlockObject(AddrFile, OldIrql);
return STATUS_NETWORK_UNREACHABLE;
}
LocalAddress = NCE->Interface->Unicast;
}
else
{
if(!(NCE = NBLocateNeighbor( &LocalAddress )))
{
UnlockObject(AddrFile, OldIrql);
return STATUS_INVALID_PARAMETER;
}
}
Status = PrepareICMPPacket( NCE->Interface,
@ -203,18 +212,24 @@ NTSTATUS ICMPSendDatagram(
DataSize );
if( !NT_SUCCESS(Status) )
{
UnlockObject(AddrFile, OldIrql);
return Status;
}
TI_DbgPrint(MID_TRACE,("About to send datagram\n"));
if (!NT_SUCCESS(Status = IPSendDatagram( &Packet, NCE, ICMPSendPacketComplete, NULL )))
{
UnlockObject(AddrFile, OldIrql);
FreeNdisPacket(Packet.NdisPacket);
return Status;
}
TI_DbgPrint(MID_TRACE,("Leaving\n"));
UnlockObject(AddrFile, OldIrql);
return STATUS_SUCCESS;
}