619 lines
15 KiB
C
619 lines
15 KiB
C
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/*++
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Copyright (c) 1992 Microsoft Corporation
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Module Name:
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ports.c
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Abstract:
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This module contains the port management code.
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Author:
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Jameel Hyder (jameelh@microsoft.com)
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Nikhil Kamkolkar (nikhilk@microsoft.com)
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Revision History:
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19 Jun 1992 Initial Version
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Notes: Tab stop: 4
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--*/
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#include <atalk.h>
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#pragma hdrstop
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#define FILENUM PORTS
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#ifdef ALLOC_PRAGMA
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#pragma alloc_text(PAGEINIT, AtalkPortShutdown)
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#pragma alloc_text(PAGEINIT, atalkPortFreeZones)
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#endif
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VOID FASTCALL
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AtalkPortDeref(
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IN OUT PPORT_DESCRIPTOR pPortDesc,
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IN BOOLEAN AtDpc
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)
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/*++
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Routine Description:
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Arguments:
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Return Value:
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--*/
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{
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BOOLEAN portDone = FALSE;
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BOOLEAN fPnPInProgress;
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BOOLEAN fRasPort;
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KIRQL OldIrql;
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if (AtDpc)
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{
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ACQUIRE_SPIN_LOCK_DPC(&pPortDesc->pd_Lock);
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}
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else
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{
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ACQUIRE_SPIN_LOCK(&pPortDesc->pd_Lock, &OldIrql);
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}
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ASSERT(pPortDesc->pd_RefCount > 0);
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pPortDesc->pd_RefCount--;
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if (pPortDesc->pd_RefCount == 0)
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{
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portDone = TRUE;
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ASSERT((pPortDesc->pd_Flags & PD_CLOSING) != 0);
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}
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fPnPInProgress = (pPortDesc->pd_Flags & PD_PNP_RECONFIGURE)? TRUE : FALSE;
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// We hold the lock while freeing up all the stuff, this should
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// only happen during unload.
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if (portDone)
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{
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DBGPRINT(DBG_COMP_UNLOAD, DBG_LEVEL_WARN,
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("AtalkPortDeref: Freeing zones and such ...\n"));
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// Free up zonelist
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atalkPortFreeZones(pPortDesc);
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DBGPRINT(DBG_COMP_UNLOAD, DBG_LEVEL_WARN,
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("AtalkPortDeref: Releasing Amt tables ...\n"));
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// We do need to free up the AMT.
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AtalkAarpReleaseAmt(pPortDesc);
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// Free the BRC
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AtalkAarpReleaseBrc(pPortDesc);
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}
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if (AtDpc)
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{
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RELEASE_SPIN_LOCK_DPC(&pPortDesc->pd_Lock);
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}
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else
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{
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RELEASE_SPIN_LOCK(&pPortDesc->pd_Lock, OldIrql);
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}
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if (portDone)
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{
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PPORT_DESCRIPTOR *ppTmp;
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// Unlink the portdesc from the list and free its memory
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ACQUIRE_SPIN_LOCK(&AtalkPortLock, &OldIrql);
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for (ppTmp = &AtalkPortList;
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*ppTmp != NULL;
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ppTmp = &((*ppTmp)->pd_Next))
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{
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if (*ppTmp == pPortDesc)
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{
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*ppTmp = pPortDesc->pd_Next;
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break;
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}
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}
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ASSERT (*ppTmp == pPortDesc->pd_Next);
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// Is the default-port going away ?
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if (AtalkDefaultPort == pPortDesc)
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{
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AtalkDefaultPort = NULL;
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KeResetEvent(&AtalkDefaultPortEvent);
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}
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RELEASE_SPIN_LOCK(&AtalkPortLock, OldIrql);
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//
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// if we are here becaue of PnP Reconfigure then don't free the memory
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// (we haven't closed the adapter with ndis, and we have other useful
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// stuff that we must retain). Put the creation refcount and the
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// binding refcount back that got taken away when we first got the
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// PnP Reconfigure event.
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// (no need for spinlock: this was ready for a free!!)
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//
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if (fPnPInProgress)
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{
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// 1 binding refcount + 1 creation refcount
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pPortDesc->pd_RefCount = 2;
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if (pPortDesc->pd_Flags & PD_RAS_PORT)
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{
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fRasPort = TRUE;
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}
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else
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{
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fRasPort = FALSE;
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}
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// blow away everything on the flag, except these
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pPortDesc->pd_Flags = (PD_PNP_RECONFIGURE | PD_BOUND);
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if (fRasPort)
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{
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pPortDesc->pd_Flags |= PD_RAS_PORT;
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}
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// restore EXT_NET flag if applicable
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if (pPortDesc->pd_PortType != ALAP_PORT)
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{
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pPortDesc->pd_Flags |= PD_EXT_NET;
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}
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// reset all pointers and other gunk to 0
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pPortDesc->pd_Next = NULL;
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pPortDesc->pd_Nodes = NULL;
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pPortDesc->pd_RouterNode = NULL;
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pPortDesc->pd_TentativeNodeAddr.atn_Network = 0;
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pPortDesc->pd_TentativeNodeAddr.atn_Node = 0;
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pPortDesc->pd_RoutersPramNode.atn_Network = 0;
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pPortDesc->pd_RoutersPramNode.atn_Node = 0;
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pPortDesc->pd_UsersPramNode1.atn_Network = 0;
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pPortDesc->pd_UsersPramNode1.atn_Node = 0;
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pPortDesc->pd_UsersPramNode2.atn_Network = 0;
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pPortDesc->pd_UsersPramNode2.atn_Node = 0;
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pPortDesc->pd_InitialZoneList = NULL;
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pPortDesc->pd_InitialDefaultZone = NULL;
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pPortDesc->pd_InitialDesiredZone = NULL;
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pPortDesc->pd_ZoneList = NULL;
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pPortDesc->pd_DefaultZone = NULL;
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pPortDesc->pd_DesiredZone = NULL;
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pPortDesc->pd_AmtCount = 0;
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RtlZeroMemory(&pPortDesc->pd_PortStats, sizeof(ATALK_PORT_STATS));
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// Unblock caller now that we are done
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KeSetEvent(pPortDesc->pd_ShutDownEvent, IO_NETWORK_INCREMENT, FALSE);
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pPortDesc->pd_ShutDownEvent = NULL;
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}
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else
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{
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// is the Arap port going away?
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if (RasPortDesc == pPortDesc)
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{
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RasPortDesc = NULL;
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}
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if (pPortDesc->pd_MulticastList != NULL)
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{
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AtalkFreeMemory(pPortDesc->pd_MulticastList);
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pPortDesc->pd_MulticastList = NULL;
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}
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// Unblock caller now that we are done
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KeSetEvent(pPortDesc->pd_ShutDownEvent, IO_NETWORK_INCREMENT, FALSE);
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if (pPortDesc->pd_FriendlyAdapterName.Buffer)
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{
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AtalkFreeMemory(pPortDesc->pd_FriendlyAdapterName.Buffer);
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}
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AtalkFreeMemory(pPortDesc);
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ACQUIRE_SPIN_LOCK(&AtalkPortLock, &OldIrql);
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AtalkNumberOfPorts --;
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RELEASE_SPIN_LOCK(&AtalkPortLock, OldIrql);
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}
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}
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}
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BOOLEAN
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AtalkReferenceDefaultPort(
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IN VOID
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)
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{
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KIRQL OldIrql;
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BOOLEAN fReferenced = FALSE;
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ACQUIRE_SPIN_LOCK(&AtalkPortLock, &OldIrql);
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if (AtalkDefaultPort)
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{
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ACQUIRE_SPIN_LOCK_DPC(&AtalkDefaultPort->pd_Lock);
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if ( !(AtalkDefaultPort->pd_Flags & (PD_PNP_RECONFIGURE | PD_CLOSING)) )
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{
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AtalkDefaultPort->pd_RefCount++;
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fReferenced = TRUE;
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}
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RELEASE_SPIN_LOCK_DPC(&AtalkDefaultPort->pd_Lock);
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}
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RELEASE_SPIN_LOCK(&AtalkPortLock, OldIrql);
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return(fReferenced);
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}
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VOID
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atalkPortFreeZones(
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IN PPORT_DESCRIPTOR pPortDesc
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)
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/*++
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Routine Description:
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Arguments:
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Return Value:
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--*/
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{
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// Dereference initial default and desired zones, and the zone list
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if (pPortDesc->pd_InitialDefaultZone != NULL)
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AtalkZoneDereference(pPortDesc->pd_InitialDefaultZone);
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if (pPortDesc->pd_InitialDesiredZone != NULL)
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AtalkZoneDereference(pPortDesc->pd_InitialDesiredZone);
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if (pPortDesc->pd_InitialZoneList != NULL)
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AtalkZoneFreeList(pPortDesc->pd_InitialZoneList);
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// and the current versions of the zones
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if (pPortDesc->pd_DefaultZone != NULL)
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AtalkZoneDereference(pPortDesc->pd_DefaultZone);
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if (pPortDesc->pd_DesiredZone != NULL)
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AtalkZoneDereference(pPortDesc->pd_DesiredZone);
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if (pPortDesc->pd_ZoneList != NULL)
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AtalkZoneFreeList(pPortDesc->pd_ZoneList);
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}
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VOID FASTCALL
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AtalkPortSetResetFlag(
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IN PPORT_DESCRIPTOR pPortDesc,
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IN BOOLEAN fRemoveBit,
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IN DWORD dwBit
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)
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/*++
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Routine Description:
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Arguments:
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Return Value:
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--*/
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{
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KIRQL OldIrql;
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ASSERT(VALID_PORT(pPortDesc));
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ACQUIRE_SPIN_LOCK(&pPortDesc->pd_Lock, &OldIrql);
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if (fRemoveBit)
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{
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pPortDesc->pd_Flags &= ~(dwBit);
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}
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else
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{
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pPortDesc->pd_Flags |= dwBit;
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}
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RELEASE_SPIN_LOCK(&pPortDesc->pd_Lock, OldIrql);
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}
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ATALK_ERROR
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AtalkPortShutdown(
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IN OUT PPORT_DESCRIPTOR pPortDesc
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)
|
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/*++
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Routine Description:
|
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Arguments:
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Return Value:
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--*/
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{
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PATALK_NODE pAtalkNode;
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ATALK_ERROR error = ATALK_NO_ERROR;
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BOOLEAN fActive;
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BOOLEAN fRasPort=FALSE;
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BOOLEAN fPnpReconfigure;
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KEVENT ShutdownEvent;
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KIRQL OldIrql;
|
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DBGPRINT(DBG_COMP_UNLOAD, DBG_LEVEL_WARN,
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("AtalkPortShutdown: Shutting down port %Z...\n", &pPortDesc->pd_AdapterKey));
|
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KeInitializeEvent(&ShutdownEvent, NotificationEvent, FALSE);
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// if this is the default port, tell TDI that we are leaving so server finds out
|
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if (pPortDesc->pd_Flags & PD_DEF_PORT)
|
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{
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if (TdiRegistrationHandle)
|
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{
|
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DBGPRINT(DBG_COMP_INIT, DBG_LEVEL_INFO,
|
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("AtalkPortShutdown: deregistering device!!\n"));
|
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TdiDeregisterDeviceObject(TdiRegistrationHandle);
|
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TdiRegistrationHandle = NULL;
|
||
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}
|
||
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}
|
||
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|
||
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ACQUIRE_SPIN_LOCK(&pPortDesc->pd_Lock, &OldIrql);
|
||
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|
||
|
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// we have already taken care of the Arap port separately: just say done
|
||
|
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if (pPortDesc->pd_Flags & PD_RAS_PORT)
|
||
|
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{
|
||
|
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fRasPort = TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
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pPortDesc->pd_Flags |= PD_CLOSING;
|
||
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|
||
|
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fActive = (pPortDesc->pd_Flags & PD_BOUND) ? TRUE : FALSE;
|
||
|
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fPnpReconfigure = (pPortDesc->pd_Flags & PD_PNP_RECONFIGURE)? TRUE : FALSE;
|
||
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|
||
|
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// Switch off the active flag just in case the unbind fails.
|
||
|
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// We arent going to accept any packets anymore.
|
||
|
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pPortDesc->pd_Flags &= ~PD_ACTIVE;
|
||
|
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pPortDesc->pd_ShutDownEvent = &ShutdownEvent;
|
||
|
|
|
||
|
|
DBGPRINT(DBG_COMP_UNLOAD, DBG_LEVEL_WARN,
|
||
|
|
("AtalkPortShutdown: Freeing nodes on port ....\n"));
|
||
|
|
|
||
|
|
// Release any nodes on this port that are not already closing.
|
||
|
|
if (!fRasPort)
|
||
|
|
{
|
||
|
|
do
|
||
|
|
{
|
||
|
|
// Ref the next node.
|
||
|
|
// ASSERT!! error does not get changed after this statement.
|
||
|
|
AtalkNodeReferenceNextNc(pPortDesc->pd_Nodes, &pAtalkNode, &error);
|
||
|
|
|
||
|
|
if (!ATALK_SUCCESS(error))
|
||
|
|
{
|
||
|
|
break;
|
||
|
|
}
|
||
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|
||
|
|
RELEASE_SPIN_LOCK(&pPortDesc->pd_Lock, OldIrql);
|
||
|
|
|
||
|
|
DBGPRINT(DBG_COMP_UNLOAD, DBG_LEVEL_ERR,
|
||
|
|
("AtalkPortShutdown: Releasing Node\n"));
|
||
|
|
|
||
|
|
AtalkNodeReleaseOnPort(pPortDesc, pAtalkNode);
|
||
|
|
|
||
|
|
AtalkNodeDereference(pAtalkNode);
|
||
|
|
|
||
|
|
ACQUIRE_SPIN_LOCK(&pPortDesc->pd_Lock, &OldIrql);
|
||
|
|
} while (TRUE);
|
||
|
|
}
|
||
|
|
|
||
|
|
RELEASE_SPIN_LOCK(&pPortDesc->pd_Lock, OldIrql);
|
||
|
|
|
||
|
|
// If we are routing, remove the RTEs for this port since each has a reference
|
||
|
|
// to this port.
|
||
|
|
if (AtalkRouter & !fRasPort)
|
||
|
|
{
|
||
|
|
AtalkRtmpKillPortRtes(pPortDesc);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (EXT_NET(pPortDesc))
|
||
|
|
{
|
||
|
|
// cancel the Amt timer and take away the refcount for it
|
||
|
|
if (AtalkTimerCancelEvent(&pPortDesc->pd_AmtTimer, NULL))
|
||
|
|
{
|
||
|
|
AtalkPortDereference(pPortDesc);
|
||
|
|
}
|
||
|
|
|
||
|
|
// cancel the Brc timer and take away the refcount for it
|
||
|
|
if (AtalkTimerCancelEvent(&pPortDesc->pd_BrcTimer, NULL))
|
||
|
|
{
|
||
|
|
AtalkPortDereference(pPortDesc);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!AtalkRouter)
|
||
|
|
{
|
||
|
|
// cancel the RtmpAging timer and take away the refcount for it
|
||
|
|
if (AtalkTimerCancelEvent(&pPortDesc->pd_RtmpAgingTimer, NULL))
|
||
|
|
{
|
||
|
|
AtalkPortDereference(pPortDesc);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// if we are currently bound, *and* we are not here because of
|
||
|
|
// PnPReconfigure, go ahead and unbind from ndis
|
||
|
|
//
|
||
|
|
if (fActive && !fPnpReconfigure)
|
||
|
|
{
|
||
|
|
// Unbind from the mac
|
||
|
|
AtalkNdisUnbind(pPortDesc);
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// if are here because of PnpReconfigure, we didn't unbind. But fake
|
||
|
|
// that we did (from refcount perspective) so that we can proceed!
|
||
|
|
// (in the PnPReconfigure code path, we don't free this memory when refcount
|
||
|
|
// goes to 0: we merely use it to trigger some pnp work)
|
||
|
|
//
|
||
|
|
if (fPnpReconfigure)
|
||
|
|
{
|
||
|
|
AtalkPortDereference(pPortDesc);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Remove the creation reference
|
||
|
|
AtalkPortDereference(pPortDesc);
|
||
|
|
|
||
|
|
// Make sure we are not at or above dispatch level
|
||
|
|
ASSERT(KeGetCurrentIrql() < DISPATCH_LEVEL);
|
||
|
|
|
||
|
|
// Wait for the last reference to go away
|
||
|
|
KeWaitForSingleObject(&ShutdownEvent,
|
||
|
|
Executive,
|
||
|
|
KernelMode,
|
||
|
|
FALSE,
|
||
|
|
NULL);
|
||
|
|
|
||
|
|
if (fActive)
|
||
|
|
{
|
||
|
|
ACQUIRE_SPIN_LOCK(&AtalkPortLock, &OldIrql);
|
||
|
|
AtalkNumberOfActivePorts--;
|
||
|
|
RELEASE_SPIN_LOCK(&AtalkPortLock, OldIrql);
|
||
|
|
|
||
|
|
ASSERT(AtalkStatistics.stat_NumActivePorts > 0);
|
||
|
|
|
||
|
|
AtalkStatistics.stat_NumActivePorts--;
|
||
|
|
}
|
||
|
|
|
||
|
|
DBGPRINT(DBG_COMP_UNLOAD, DBG_LEVEL_ERR,
|
||
|
|
("AtalkPortShutdown: shutdown for port %lx completed\n",pPortDesc));
|
||
|
|
|
||
|
|
return ATALK_NO_ERROR;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
#if DBG
|
||
|
|
|
||
|
|
VOID
|
||
|
|
AtalkPortDumpInfo(
|
||
|
|
VOID
|
||
|
|
)
|
||
|
|
{
|
||
|
|
int i, j;
|
||
|
|
KIRQL OldIrql;
|
||
|
|
PPORT_DESCRIPTOR pPortDesc;
|
||
|
|
PZONE_LIST pZoneList;
|
||
|
|
|
||
|
|
ACQUIRE_SPIN_LOCK(&AtalkPortLock, &OldIrql);
|
||
|
|
for (pPortDesc = AtalkPortList;
|
||
|
|
pPortDesc != NULL;
|
||
|
|
pPortDesc = pPortDesc->pd_Next)
|
||
|
|
{
|
||
|
|
DBGPRINT(DBG_COMP_DUMP, DBG_LEVEL_FATAL,
|
||
|
|
("Port info for port %Z\n", &pPortDesc->pd_AdapterKey));
|
||
|
|
|
||
|
|
ACQUIRE_SPIN_LOCK_DPC(&pPortDesc->pd_Lock);
|
||
|
|
|
||
|
|
DBGPRINT(DBG_COMP_DUMP, DBG_LEVEL_FATAL,
|
||
|
|
(" Flags -> %d\n", pPortDesc->pd_Flags));
|
||
|
|
|
||
|
|
DBGPRINT(DBG_COMP_DUMP, DBG_LEVEL_FATAL,
|
||
|
|
(" PortType -> %d\n", pPortDesc->pd_PortType));
|
||
|
|
|
||
|
|
DBGPRINT(DBG_COMP_DUMP, DBG_LEVEL_FATAL,
|
||
|
|
(" PortName -> %s\n", pPortDesc->pd_PortName));
|
||
|
|
|
||
|
|
DBGPRINT(DBG_COMP_DUMP, DBG_LEVEL_FATAL,
|
||
|
|
(" AARP Probes -> %d\n", pPortDesc->pd_AarpProbes));
|
||
|
|
|
||
|
|
if (pPortDesc->pd_InitialNetworkRange.anr_FirstNetwork != 0)
|
||
|
|
{
|
||
|
|
DBGPRINT(DBG_COMP_DUMP, DBG_LEVEL_FATAL,
|
||
|
|
(" InitialNwRange -> %lx-%lx\n",
|
||
|
|
pPortDesc->pd_InitialNetworkRange.anr_FirstNetwork,
|
||
|
|
pPortDesc->pd_InitialNetworkRange.anr_LastNetwork))
|
||
|
|
}
|
||
|
|
|
||
|
|
DBGPRINT(DBG_COMP_DUMP, DBG_LEVEL_FATAL,
|
||
|
|
(" NetworkRange -> %x-%x\n",
|
||
|
|
pPortDesc->pd_NetworkRange.anr_FirstNetwork,
|
||
|
|
pPortDesc->pd_NetworkRange.anr_LastNetwork))
|
||
|
|
|
||
|
|
DBGPRINT(DBG_COMP_DUMP, DBG_LEVEL_FATAL,
|
||
|
|
(" ARouter Address -> %x.%x\n",
|
||
|
|
pPortDesc->pd_ARouter.atn_Network,
|
||
|
|
pPortDesc->pd_ARouter.atn_Node));
|
||
|
|
|
||
|
|
DBGPRINT(DBG_COMP_DUMP, DBG_LEVEL_FATAL,
|
||
|
|
(" Multicast Addr -> "));
|
||
|
|
for (j = 0; j < MAX_HW_ADDR_LEN; j++)
|
||
|
|
DBGPRINTSKIPHDR(DBG_COMP_DUMP, DBG_LEVEL_FATAL,
|
||
|
|
("%02x", (BYTE)pPortDesc->pd_ZoneMulticastAddr[j]));
|
||
|
|
DBGPRINTSKIPHDR(DBG_COMP_DUMP, DBG_LEVEL_FATAL,
|
||
|
|
("\n"));
|
||
|
|
|
||
|
|
if (pPortDesc->pd_InitialZoneList != NULL)
|
||
|
|
{
|
||
|
|
DBGPRINT(DBG_COMP_DUMP, DBG_LEVEL_FATAL,
|
||
|
|
(" Initial zone list:\n"));
|
||
|
|
|
||
|
|
for (pZoneList = pPortDesc->pd_InitialZoneList;
|
||
|
|
pZoneList != NULL; pZoneList = pZoneList->zl_Next)
|
||
|
|
{
|
||
|
|
DBGPRINT(DBG_COMP_DUMP, DBG_LEVEL_FATAL,
|
||
|
|
(" %s\n", pZoneList->zl_pZone->zn_Zone));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (pPortDesc->pd_InitialDefaultZone != NULL)
|
||
|
|
DBGPRINT(DBG_COMP_DUMP, DBG_LEVEL_FATAL,
|
||
|
|
(" InitialDefZone -> %s\n",
|
||
|
|
pPortDesc->pd_InitialDefaultZone->zn_Zone));
|
||
|
|
|
||
|
|
if (pPortDesc->pd_InitialDesiredZone != NULL)
|
||
|
|
DBGPRINT(DBG_COMP_DUMP, DBG_LEVEL_FATAL,
|
||
|
|
(" InitialDesZone -> %s\n",
|
||
|
|
pPortDesc->pd_InitialDesiredZone->zn_Zone));
|
||
|
|
|
||
|
|
if (pPortDesc->pd_ZoneList)
|
||
|
|
{
|
||
|
|
DBGPRINT(DBG_COMP_DUMP, DBG_LEVEL_FATAL,
|
||
|
|
(" Current zone list:\n"));
|
||
|
|
|
||
|
|
for (pZoneList = pPortDesc->pd_ZoneList;
|
||
|
|
pZoneList != NULL; pZoneList = pZoneList->zl_Next)
|
||
|
|
{
|
||
|
|
DBGPRINT(DBG_COMP_DUMP, DBG_LEVEL_FATAL,
|
||
|
|
(" %s\n", pZoneList->zl_pZone->zn_Zone));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (pPortDesc->pd_DefaultZone != NULL)
|
||
|
|
DBGPRINT(DBG_COMP_DUMP, DBG_LEVEL_FATAL,
|
||
|
|
(" CurrentDefZone -> %s\n",
|
||
|
|
pPortDesc->pd_DefaultZone->zn_Zone));
|
||
|
|
|
||
|
|
if (pPortDesc->pd_DesiredZone != NULL)
|
||
|
|
DBGPRINT(DBG_COMP_DUMP, DBG_LEVEL_FATAL,
|
||
|
|
(" CurrentDesZone -> %s\n",
|
||
|
|
pPortDesc->pd_DesiredZone->zn_Zone));
|
||
|
|
|
||
|
|
RELEASE_SPIN_LOCK_DPC(&pPortDesc->pd_Lock);
|
||
|
|
}
|
||
|
|
RELEASE_SPIN_LOCK(&AtalkPortLock, OldIrql);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|