1474 lines
45 KiB
C
1474 lines
45 KiB
C
//+----------------------------------------------------------------------------
|
||
//
|
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// Copyright (C) 1992, Microsoft Corporation.
|
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//
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// File: PktSup.C
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//
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// Contents: This module implements routines specific to the partition
|
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// knowledge table entry.
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//
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// Functions: PktDSTransportDestroy -
|
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// PktDSMachineDestroy -
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// PktServiceConstruct -
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// PktServiceDestroy -
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// PktEntryIdConstruct -
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// PktEntryIdDestroy -
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// PktEntryInfoConstruct -
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// PktEntryInfoDestroy -
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// PktEntryAssemble -
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// PktEntryReassemble -
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// PktEntryDestroy -
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// PktEntryClearSubordinates -
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// PktEntryClearChildren -
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// PktpServiceToReferral -
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// DfsFixDSMachineStructs -
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// DfspFixService -
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// DfsDecrementMachEntryCount -
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// PktSpecialEntryDestroy -
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//
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// History: 27 May 1992 PeterCo Created.
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//
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//-----------------------------------------------------------------------------
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#include "dfsprocs.h"
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#include "dnr.h"
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#include "creds.h"
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#include "fsctrl.h"
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#include "know.h"
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#include "log.h"
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#define Dbg (DEBUG_TRACE_PKT)
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ULONG MupErrorCase = 0;
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NTSTATUS
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DfsFixDSMachineStructs(
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PDFS_PKT_ENTRY pEntry
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);
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NTSTATUS
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DfspFixService(
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PDFS_SERVICE pService
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);
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VOID
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PktDSTransportDestroy(
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IN PDS_TRANSPORT Victim OPTIONAL,
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IN BOOLEAN DeallocateAll
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);
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VOID
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PktDSMachineDestroy(
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IN PDS_MACHINE Victim OPTIONAL,
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IN BOOLEAN DeallocateAll
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);
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#ifdef ALLOC_PRAGMA
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#pragma alloc_text( PAGE, PktServiceConstruct )
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#pragma alloc_text( PAGE, PktServiceDestroy )
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#pragma alloc_text( PAGE, PktEntryIdConstruct )
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#pragma alloc_text( PAGE, PktEntryIdDestroy )
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#pragma alloc_text( PAGE, PktEntryInfoDestroy )
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#pragma alloc_text( PAGE, PktEntryAssemble )
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#pragma alloc_text( PAGE, PktEntryReassemble )
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#pragma alloc_text( PAGE, PktEntryDestroy)
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#pragma alloc_text( PAGE, PktEntryClearSubordinates )
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#pragma alloc_text( PAGE, PktEntryClearChildren )
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#pragma alloc_text( PAGE, DfsFixDSMachineStructs )
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#pragma alloc_text( PAGE, DfspFixService )
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#pragma alloc_text( PAGE, DfsDecrementMachEntryCount )
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#pragma alloc_text( PAGE, PktDSTransportDestroy )
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#pragma alloc_text( PAGE, PktDSMachineDestroy )
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#pragma alloc_text( PAGE, PktSpecialEntryDestroy )
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#endif // ALLOC_PRAGMA
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//
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// NOTE - we designed for only one system-wide PKT; there is no provision
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// for multiple PKTs.
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//
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#define _GetPkt() (&DfsData.Pkt)
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//+-------------------------------------------------------------------------
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//
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// Function: PktServiceConstruct, public
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//
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// Synopsis: PktServiceConstruct creates a new service structure.
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//
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// Arguments: [Service] - a pointer to a service structure to fill.
|
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// [ServiceType] - the type of the new service.
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// [ServiceCapability] - the capabilities of the new service.
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// [ServiceStatus] - the initial status of the new service.
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// [ServiceProviderId] - the provider Id of the new service.
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// [ServiceName] - the name of the principal for the service
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// [ServiceAddress] - a string which gives the address
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// of the service.
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//
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// Returns: [STATUS_SUCCESS] - all is well.
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// [STATUS_INSUFFICIENT_RESOURCES] - memory could not be
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// allocated for this new service.
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//
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// Notes: All data is copied (Not MOVED).
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//
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//--------------------------------------------------------------------------
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NTSTATUS
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PktServiceConstruct(
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OUT PDFS_SERVICE Service,
|
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IN ULONG ServiceType,
|
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IN ULONG ServiceCapability,
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IN ULONG ServiceStatus,
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IN ULONG ServiceProviderId,
|
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IN PUNICODE_STRING ServiceName OPTIONAL,
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IN PUNICODE_STRING ServiceAddress OPTIONAL
|
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) {
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DfsDbgTrace(+1, Dbg, "PktServiceConstruct: Entered\n", 0);
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ASSERT(ARGUMENT_PRESENT(Service));
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RtlZeroMemory(Service, sizeof(DFS_SERVICE));
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if (ARGUMENT_PRESENT(ServiceName) && ServiceName->Length != 0) {
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Service->Name.Buffer = DfsAllocate(ServiceName->Length);
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if (Service->Name.Buffer == NULL) {
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DfsDbgTrace(-1, Dbg, "PktServiceConstruct: Exit -> %08lx\n",
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ULongToPtr(STATUS_INSUFFICIENT_RESOURCES) );
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return STATUS_INSUFFICIENT_RESOURCES;
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}
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Service->Name.Length = ServiceName->Length;
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Service->Name.MaximumLength = ServiceName->Length;
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RtlCopyUnicodeString(&Service->Name, ServiceName);
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} else {
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Service->Name.Buffer = NULL;
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Service->Name.Length = Service->Name.MaximumLength = 0;
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}
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if (ARGUMENT_PRESENT(ServiceAddress) && ServiceAddress->Length != 0) {
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Service->Address.Buffer = DfsAllocate(ServiceAddress->Length);
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if (Service->Address.Buffer == NULL) {
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if (Service->Name.Buffer != NULL)
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DfsFree(Service->Name.Buffer);
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DfsDbgTrace(-1, Dbg, "PktServiceConstruct: Exit -> %08lx\n",
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ULongToPtr(STATUS_INSUFFICIENT_RESOURCES) );
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return STATUS_INSUFFICIENT_RESOURCES;
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}
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RtlMoveMemory(Service->Address.Buffer, ServiceAddress->Buffer,
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ServiceAddress->Length);
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Service->Address.Length =
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Service->Address.MaximumLength = ServiceAddress->Length;
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} else {
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Service->Address.Buffer = NULL;
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Service->Address.Length = Service->Address.MaximumLength = 0;
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}
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Service->Type = ServiceType;
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Service->Capability = ServiceCapability;
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Service->ProviderId = ServiceProviderId;
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Service->pProvider = NULL;
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DfsDbgTrace(-1, Dbg, "PktServiceConstruct: Exit -> %08lx\n",
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STATUS_SUCCESS );
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return STATUS_SUCCESS;
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}
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//+-------------------------------------------------------------------------
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//
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// Function: PktDSTransportDestroy, public
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//
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// Synopsis: PktDSTransportDestroy destroys a DS_TRANSPORT structure, and
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// optionally deallocates the structure itself.
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//
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// Arguments: [Victim] - the DS_TRANSPORT structure to destroy
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// [DeallocateAll] - if True, indicates that the structure
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// it self is to be deallocated, otherwise, only the
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// strings within the structure are deallocated.
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//
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// Returns: VOID
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//
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// Notes:
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//
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//--------------------------------------------------------------------------
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VOID
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PktDSTransportDestroy(
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IN PDS_TRANSPORT Victim OPTIONAL,
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IN BOOLEAN DeallocateAll
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)
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{
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DfsDbgTrace(+1, Dbg, "PktDSTransportDestroy: Entered\n", 0);
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if (ARGUMENT_PRESENT(Victim)) {
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//
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// Nothing to free in this structure??
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//
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if (DeallocateAll)
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ExFreePool(Victim);
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} else
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DfsDbgTrace(0, Dbg, "PktDSTransportDestroy: No Victim\n", 0 );
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DfsDbgTrace(-1, Dbg, "PktDSTransportDestroy: Exit -> VOID\n", 0 );
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}
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//+-------------------------------------------------------------------------
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//
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// Function: PktDSMachineDestroy, public
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//
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// Synopsis: PktDSMachineDestroy destroys a DS_MACHINE structure, and
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// optionally deallocates the structure itself.
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//
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// Arguments: [Victim] - the DS_MACHINE structure to destroy
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// [DeallocateAll] - if True, indicates that the structure
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// it self is to be deallocated, otherwise, only the
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// strings within the structure are deallocated.
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//
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// Returns: VOID
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//
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// Notes:
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//
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//--------------------------------------------------------------------------
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VOID
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PktDSMachineDestroy(
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IN PDS_MACHINE Victim OPTIONAL,
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IN BOOLEAN DeallocateAll
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)
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{
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ULONG i;
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DfsDbgTrace(+1, Dbg, "PktDSMachineDestroy: Entered\n", 0);
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if (ARGUMENT_PRESENT(Victim)) {
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if (Victim->pwszShareName != NULL) {
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DfsFree(Victim->pwszShareName);
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Victim->pwszShareName = NULL;
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}
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if (Victim->prgpwszPrincipals != NULL && Victim->cPrincipals > 0) {
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for (i = 0; i < Victim->cPrincipals; i++) {
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if (Victim->prgpwszPrincipals[i] != NULL) {
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DfsFree(Victim->prgpwszPrincipals[i]);
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Victim->prgpwszPrincipals[i] = NULL;
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}
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}
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}
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if (Victim->prgpwszPrincipals) {
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ExFreePool(Victim->prgpwszPrincipals);
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Victim->prgpwszPrincipals = NULL;
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}
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for (i = 0; i < Victim->cTransports; i++) {
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PktDSTransportDestroy(Victim->rpTrans[i], TRUE);
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}
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if (DeallocateAll)
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ExFreePool(Victim);
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} else
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DfsDbgTrace(0, Dbg, "PktDSMachineDestroy: No Victim\n", 0 );
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DfsDbgTrace(-1, Dbg, "PktDSMachineDestroy: Exit -> VOID\n", 0 );
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||
}
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||
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||
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||
//+-------------------------------------------------------------------------
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||
//
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// Function: DfsDecrementMachEntryCount
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//
|
||
// Synopsis: This function decrements the count for the pMachine passed
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// in and if necessary will also free up the DS_MACHINE struct
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//
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//--------------------------------------------------------------------------
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VOID
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DfsDecrementMachEntryCount(
|
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PDFS_MACHINE_ENTRY pMachEntry,
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BOOLEAN DeallocateMachine
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)
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{
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NTSTATUS status = STATUS_SUCCESS;
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UNICODE_STRING ustrMachineName;
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PUNICODE_PREFIX_TABLE_ENTRY pfxEntry;
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PDS_MACHINE pMachine;
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||
PDFS_PKT Pkt;
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LONG Count;
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||
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ASSERT(pMachEntry != NULL);
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if (pMachEntry == NULL)
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return;
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pMachine = pMachEntry->pMachine;
|
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ASSERT(pMachine != NULL);
|
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if (pMachine == NULL)
|
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return;
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||
|
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//
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// We already have appropriate locks
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//
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Pkt = _GetPkt();
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|
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//
|
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// For now we only expect one principal, by design?
|
||
//
|
||
ASSERT(pMachine->cPrincipals == 1);
|
||
|
||
Count = InterlockedDecrement( &pMachEntry->UseCount );
|
||
|
||
if (Count == 0) {
|
||
|
||
if (pMachEntry->AuthConn != NULL) {
|
||
|
||
DfsDeleteTreeConnection( pMachEntry->AuthConn, USE_LOTS_OF_FORCE );
|
||
|
||
pMachEntry->Credentials->RefCount--;
|
||
|
||
}
|
||
|
||
//
|
||
// This means we can now actually delete this DS_MACHINE structure
|
||
//
|
||
RtlRemoveUnicodePrefix(&Pkt->DSMachineTable,
|
||
&pMachEntry->PrefixTableEntry);
|
||
|
||
if (DeallocateMachine)
|
||
PktDSMachineDestroy(pMachine, TRUE);
|
||
|
||
//
|
||
// Free the entry itself. Note that the UNICODE_STRING in the
|
||
// entry gets freed up as part of above pMachine deletion.
|
||
//
|
||
DfsFree(pMachEntry);
|
||
}
|
||
|
||
}
|
||
|
||
|
||
|
||
//+-------------------------------------------------------------------------
|
||
//
|
||
// Function: PktServiceDestroy, public
|
||
//
|
||
// Synopsis: PktServiceDestroy destroys a service structure, and
|
||
// optionally deallocates the structure itself.
|
||
//
|
||
// Arguments: [Victim] - the service structure to destroy
|
||
// [DeallocateAll] - if True, indicates that the structure
|
||
// it self is to be deallocated, otherwise, only the
|
||
// strings within the structure are deallocated.
|
||
//
|
||
// Returns: VOID
|
||
//
|
||
// Notes:
|
||
//
|
||
//--------------------------------------------------------------------------
|
||
|
||
VOID
|
||
PktServiceDestroy(
|
||
IN PDFS_SERVICE Victim OPTIONAL,
|
||
IN BOOLEAN DeallocateAll
|
||
)
|
||
{
|
||
DfsDbgTrace(+1, Dbg, "PktServiceDestroy: Entered\n", 0);
|
||
|
||
if (ARGUMENT_PRESENT(Victim)) {
|
||
|
||
if (Victim->ConnFile != NULL) {
|
||
DfsCloseConnection(Victim);
|
||
Victim->ConnFile = NULL;
|
||
}
|
||
|
||
if (Victim->Name.Buffer != NULL) {
|
||
DfsFree(Victim->Name.Buffer);
|
||
Victim->Name.Buffer = NULL;
|
||
}
|
||
|
||
if (Victim->Address.Buffer != NULL) {
|
||
DfsFree(Victim->Address.Buffer);
|
||
Victim->Address.Buffer = NULL;
|
||
}
|
||
|
||
//
|
||
// Decrement the usage count. If it is to be deleted it will happen
|
||
// automatically.
|
||
//
|
||
if (Victim->pMachEntry != NULL) {
|
||
DfsDecrementMachEntryCount(Victim->pMachEntry, TRUE);
|
||
}
|
||
|
||
if (DeallocateAll)
|
||
ExFreePool(Victim);
|
||
} else
|
||
DfsDbgTrace(0, Dbg, "PktServiceDestroy: No Victim\n", 0 );
|
||
|
||
DfsDbgTrace(-1, Dbg, "PktServiceDestroy: Exit -> VOID\n", 0 );
|
||
}
|
||
|
||
|
||
|
||
//+-------------------------------------------------------------------------
|
||
//
|
||
// Function: PktEntryIdConstruct, public
|
||
//
|
||
// Synopsis: PktEntryIdConstruct creates a PKT Entry Id
|
||
//
|
||
// Arguments: [NewPktEntryId] - Where the new entry is placed
|
||
// [NewUid] - The UID of the new Pkt Entry
|
||
// [NewPrefix] - The new prefix of the new Pkt Entry
|
||
//
|
||
// Returns: [STATUS_SUCCESS] - all is well.
|
||
// [STATUS_INSUFFICIENT_RESOURCES] - could not allocate
|
||
// memory for the Prefix part of the Id.
|
||
//
|
||
// Notes: The UNICODE_STRING used in the Prefix of the Id is COPIED,
|
||
// not MOVED!
|
||
//
|
||
//--------------------------------------------------------------------------
|
||
NTSTATUS
|
||
PktEntryIdConstruct(
|
||
OUT PDFS_PKT_ENTRY_ID PktEntryId,
|
||
IN GUID *Uid OPTIONAL,
|
||
IN UNICODE_STRING *Prefix OPTIONAL
|
||
)
|
||
{
|
||
DfsDbgTrace(+1, Dbg, "PktEntryIdConstruct: Entered\n", 0);
|
||
|
||
ASSERT(ARGUMENT_PRESENT(PktEntryId));
|
||
ASSERT(ARGUMENT_PRESENT(Prefix));
|
||
|
||
//
|
||
// Zero the memory
|
||
//
|
||
RtlZeroMemory(PktEntryId, sizeof(DFS_PKT_ENTRY_ID));
|
||
|
||
//
|
||
// deal with the prefix.
|
||
//
|
||
if (ARGUMENT_PRESENT(Prefix)) {
|
||
|
||
PUNICODE_STRING pus = &PktEntryId->Prefix;
|
||
|
||
if (Prefix->Length != 0) {
|
||
pus->Length = pus->MaximumLength = Prefix->Length;
|
||
pus->Buffer = DfsAllocate(pus->Length);
|
||
if (pus->Buffer != NULL) {
|
||
RtlCopyUnicodeString(pus, Prefix);
|
||
} else {
|
||
DfsDbgTrace(-1,Dbg,"PktEntryIdConstruct: Exit -> %08lx\n",
|
||
ULongToPtr(STATUS_INSUFFICIENT_RESOURCES) );
|
||
return STATUS_INSUFFICIENT_RESOURCES;
|
||
}
|
||
}
|
||
}
|
||
|
||
//
|
||
// deal with the GUID.
|
||
//
|
||
if (ARGUMENT_PRESENT(Uid)) {
|
||
PktEntryId->Uid = (*Uid);
|
||
}
|
||
|
||
DfsDbgTrace(-1,Dbg,"PktEntryIdConstruct: Exit -> %08lx\n",STATUS_SUCCESS);
|
||
return STATUS_SUCCESS;
|
||
}
|
||
|
||
|
||
//+-------------------------------------------------------------------------
|
||
//
|
||
// Function: PktEntryIdDestroy, public
|
||
//
|
||
// Synopsis: PktEntryIdDestroy destroys a PKT Entry Id
|
||
//
|
||
// Arguments: [Victim] - Id to destroy
|
||
// [DeallocateAll] - if true, indicates that the memory
|
||
// for the Id itself is to be release, otherwise,
|
||
// this memory is not released (only the memory for
|
||
// the UNICODE_STRING in the Prefix is released).
|
||
//
|
||
// Returns: VOID
|
||
//
|
||
// Notes: Memory for the UNICODE_STRING in the Prefix is released.
|
||
//
|
||
//--------------------------------------------------------------------------
|
||
|
||
VOID
|
||
PktEntryIdDestroy(
|
||
IN PDFS_PKT_ENTRY_ID Victim OPTIONAL,
|
||
IN BOOLEAN DeallocateAll
|
||
)
|
||
{
|
||
DfsDbgTrace(+1, Dbg, "PktEntryIdDestroy: Entered\n", 0);
|
||
if (ARGUMENT_PRESENT(Victim)) {
|
||
if (Victim->Prefix.Buffer != NULL) {
|
||
DfsFree(Victim->Prefix.Buffer);
|
||
Victim->Prefix.Buffer = NULL;
|
||
}
|
||
if (Victim->ShortPrefix.Buffer != NULL) {
|
||
DfsFree(Victim->ShortPrefix.Buffer);
|
||
Victim->ShortPrefix.Buffer = NULL;
|
||
}
|
||
if (DeallocateAll)
|
||
ExFreePool(Victim);
|
||
} else
|
||
DfsDbgTrace(0, Dbg, "PktEntryIdDestroy: No Victim\n", 0 );
|
||
DfsDbgTrace(-1, Dbg, "PktEntryIdDestroy: Exit -> VOID\n", 0 );
|
||
}
|
||
|
||
|
||
|
||
//+-------------------------------------------------------------------------
|
||
//
|
||
// Function: PktEntryInfoDestroy, public
|
||
//
|
||
// Synopsis: PktEntryInfoDestroy destroys an info structure, and
|
||
// optionally deallocates the structure itself.
|
||
//
|
||
// Arguments: [Victim] - the info structure to destroy
|
||
// [DeallocateAll] - if True, indicates that the structure
|
||
// itself is to be deallocated, otherwise, only the
|
||
// service list within the structure is deallocated.
|
||
//
|
||
// Returns: VOID
|
||
//
|
||
// Notes:
|
||
//
|
||
//--------------------------------------------------------------------------
|
||
VOID
|
||
PktEntryInfoDestroy(
|
||
IN PDFS_PKT_ENTRY_INFO Victim OPTIONAL,
|
||
IN BOOLEAN DeallocateAll
|
||
)
|
||
{
|
||
DfsDbgTrace(+1, Dbg, "PktEntryInfoDestroy: Entered\n", 0);
|
||
|
||
if (ARGUMENT_PRESENT(Victim)) {
|
||
|
||
ULONG i;
|
||
|
||
ExAcquireResourceExclusiveLite( &DfsData.Resource, TRUE );
|
||
|
||
if (Victim->ServiceList != NULL) {
|
||
for (i = 0; i < Victim->ServiceCount; i++)
|
||
PktServiceDestroy(&Victim->ServiceList[i], FALSE);
|
||
}
|
||
|
||
Victim->ServiceCount = 0;
|
||
|
||
if (Victim->ServiceList != NULL) {
|
||
ExFreePool(Victim->ServiceList);
|
||
Victim->ServiceList = NULL;
|
||
}
|
||
|
||
if (DeallocateAll)
|
||
ExFreePool(Victim);
|
||
|
||
ExReleaseResourceLite( &DfsData.Resource );
|
||
|
||
} else
|
||
DfsDbgTrace(0, Dbg, "PktEntryInfoDestroy: No Victim\n", 0 );
|
||
|
||
DfsDbgTrace(-1, Dbg, "PktEntryInfoDestroy: Exit -> VOID\n", 0 );
|
||
}
|
||
|
||
|
||
|
||
//+-------------------------------------------------------------------------
|
||
//
|
||
// Function: DfspFixService
|
||
//
|
||
// Synopsis: This function should be called when a new service's DS_MACHINE
|
||
// struct has to be adjusted to make sure there is a unique one
|
||
// for each machine in the PKT.
|
||
//
|
||
// Arguments: [pService] -- The Service struct to fix up.
|
||
//
|
||
// History: 23 August 1994 SudK Created.
|
||
//
|
||
//--------------------------------------------------------------------------
|
||
NTSTATUS
|
||
DfspFixService(
|
||
PDFS_SERVICE pService
|
||
)
|
||
{
|
||
|
||
NTSTATUS status = STATUS_SUCCESS;
|
||
UNICODE_STRING ustrMachineName;
|
||
PDS_MACHINE pMachine;
|
||
PUNICODE_PREFIX_TABLE_ENTRY pfxEntry;
|
||
PDFS_MACHINE_ENTRY machEntry;
|
||
PDFS_PKT Pkt;
|
||
|
||
ASSERT(pService != NULL);
|
||
ASSERT(pService->pMachEntry != NULL);
|
||
pMachine = pService->pMachEntry->pMachine;
|
||
if (pMachine->cPrincipals == 0) {
|
||
ASSERT(pService->Type && DFS_SERVICE_TYPE_DOWN_LEVEL);
|
||
pService->pMachEntry->UseCount = 1;
|
||
|
||
return(status);
|
||
}
|
||
//
|
||
// We are called during PktCreateEntry. We already have appropriate locks
|
||
//
|
||
Pkt = _GetPkt();
|
||
|
||
//
|
||
// For now we only expect one principal. by design
|
||
//
|
||
ASSERT(pMachine->cPrincipals == 1);
|
||
|
||
RtlInitUnicodeString(&ustrMachineName,
|
||
pMachine->prgpwszPrincipals[0]);
|
||
|
||
|
||
ASSERT(ustrMachineName.Buffer != NULL);
|
||
|
||
pfxEntry = RtlFindUnicodePrefix(&Pkt->DSMachineTable,&ustrMachineName,TRUE);
|
||
if (pfxEntry != NULL) {
|
||
//
|
||
// In this case the DS_Machine structure already exists. Just use the
|
||
// existing DS_Machine struct and bump the UseCount
|
||
//
|
||
machEntry = CONTAINING_RECORD(pfxEntry,
|
||
DFS_MACHINE_ENTRY,
|
||
PrefixTableEntry);
|
||
|
||
InterlockedIncrement( &machEntry->UseCount );
|
||
|
||
//
|
||
// Even though we are "reusing" the Machine Entry, we might have a
|
||
// better DS_MACHINE (ie, one with more transports) in the incoming
|
||
// one. If so, lets use the new one.
|
||
//
|
||
|
||
if (pMachine->cTransports > machEntry->pMachine->cTransports) {
|
||
PDS_MACHINE pTempMachine;
|
||
|
||
DfsDbgTrace(0, 0, "DfspFixService: Using new DS_MACHINE for [%wZ]\n", &ustrMachineName);
|
||
|
||
pTempMachine = machEntry->pMachine;
|
||
machEntry->pMachine = pMachine;
|
||
pService->pMachEntry->pMachine = pTempMachine;
|
||
|
||
RtlRemoveUnicodePrefix(
|
||
&Pkt->DSMachineTable,
|
||
&machEntry->PrefixTableEntry);
|
||
|
||
machEntry->MachineName = ustrMachineName;
|
||
|
||
RtlInsertUnicodePrefix(
|
||
&Pkt->DSMachineTable,
|
||
&machEntry->MachineName,
|
||
&machEntry->PrefixTableEntry);
|
||
|
||
}
|
||
pService->pMachEntry = machEntry;
|
||
|
||
} else {
|
||
//
|
||
// In this case the DS_Machine is not there in the table. Need to add
|
||
// current one to the table.
|
||
//
|
||
machEntry = pService->pMachEntry;
|
||
machEntry->UseCount = 1;
|
||
|
||
machEntry->MachineName = ustrMachineName; // Use same mem in DS_MACHINE.
|
||
|
||
//
|
||
// Now insert the machEntry and then we are done. This better not fail.
|
||
//
|
||
if (!RtlInsertUnicodePrefix(&Pkt->DSMachineTable,
|
||
&machEntry->MachineName,
|
||
&machEntry->PrefixTableEntry)) {
|
||
BugCheck("DFS Pkt inconsistent DfspFixService");
|
||
}
|
||
|
||
}
|
||
return(status);
|
||
}
|
||
|
||
|
||
|
||
//+-------------------------------------------------------------------------
|
||
//
|
||
// Function: DfsFixDSMachineStructs
|
||
//
|
||
// Synopsis: For the entry given this function makes sure that there is
|
||
// only one DS_MACHINE structure in the PKT. If there isn't one
|
||
// then one is registered. If there is one then the same one is
|
||
// used and the current one in the DFS_SERVICE struct is freed up.
|
||
//
|
||
// Arguments: [pEntry] -- The PKT entry that has to be fixed.
|
||
//
|
||
// Notes: If this function fails then it will reset the pEntry to the
|
||
// same format it was when it was called.
|
||
//
|
||
// History: 22 Aug 1994 SudK Created.
|
||
//
|
||
//--------------------------------------------------------------------------
|
||
NTSTATUS
|
||
DfsFixDSMachineStructs(
|
||
PDFS_PKT_ENTRY pEntry
|
||
)
|
||
{
|
||
NTSTATUS status = STATUS_SUCCESS;
|
||
ULONG i;
|
||
PDFS_MACHINE_ENTRY *apMachineEntry;
|
||
PDFS_SERVICE pService;
|
||
|
||
if (pEntry->Info.ServiceCount == 0)
|
||
return(status);
|
||
|
||
//
|
||
// In case of downlevel we do nothing
|
||
//
|
||
if (pEntry->Type & PKT_ENTRY_TYPE_NONDFS)
|
||
return(status);
|
||
|
||
apMachineEntry =
|
||
ExAllocatePoolWithTag(PagedPool,
|
||
sizeof(PDFS_MACHINE_ENTRY) * pEntry->Info.ServiceCount,
|
||
' puM');
|
||
|
||
if (apMachineEntry == NULL) {
|
||
return(STATUS_INSUFFICIENT_RESOURCES);
|
||
}
|
||
|
||
for (i=0; i < pEntry->Info.ServiceCount; i++) {
|
||
//
|
||
// First Save the current DS_Machine and then fix up
|
||
//
|
||
apMachineEntry[i] = pEntry->Info.ServiceList[i].pMachEntry;
|
||
status = DfspFixService(&pEntry->Info.ServiceList[i]);
|
||
if (!NT_SUCCESS(status)) {
|
||
//
|
||
// In this case we break and let the cleanup part below take care
|
||
// of cleaning up everything.
|
||
//
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (!NT_SUCCESS(status)) {
|
||
//
|
||
// We need to cleanup in this case. I.E. reset all the PDS_MACHINEs
|
||
// back to old values and decrement any usage counts on DS_MACHINE
|
||
// structures.
|
||
//
|
||
ULONG j;
|
||
for (j=0; j < i; j++) {
|
||
pService = &pEntry->Info.ServiceList[j];
|
||
//
|
||
// These have already been fixed up so decrement the count on the
|
||
// pMachine structs. Dont want to deallocate the pMachine structs
|
||
// if we were the last one to use it.
|
||
//
|
||
DfsDecrementMachEntryCount(pService->pMachEntry, FALSE);
|
||
|
||
if (apMachineEntry[j] != pService->pMachEntry)
|
||
pService->pMachEntry = apMachineEntry[j];
|
||
}
|
||
}
|
||
else {
|
||
//
|
||
// In this case everything went fine. So we need to free up the
|
||
// DS_MACHINE structures that were superfluously allocated for now.
|
||
//
|
||
for (i=0; i<pEntry->Info.ServiceCount; i++) {
|
||
if (apMachineEntry[i] != pEntry->Info.ServiceList[i].pMachEntry) {
|
||
//
|
||
// This means that the pMachine in the service list got replaced
|
||
// by a different one so let us free this one now.
|
||
//
|
||
PktDSMachineDestroy(apMachineEntry[i]->pMachine, TRUE);
|
||
ExFreePool( apMachineEntry[i] );
|
||
}
|
||
}
|
||
}
|
||
|
||
ExFreePool(apMachineEntry);
|
||
return(status);
|
||
}
|
||
|
||
|
||
|
||
//+-------------------------------------------------------------------------
|
||
//
|
||
// Function: PktEntryAssemble, private
|
||
//
|
||
// Synopsis: PktpEntryAssemble blindly constructs a new partition
|
||
// table entry and places it in the PKT. The caller must
|
||
// have previously determined that no other entry with this
|
||
// UID or Prefix existed. The PKT must be acquired exclusively
|
||
// for this operation.
|
||
//
|
||
// Arguments: [Entry] - a pointer to an entry to be filled.
|
||
// [Pkt] - pointer to a initialized (and acquired
|
||
// exclusively) PKT
|
||
// [EntryType] - the type of entry to assemble.
|
||
// [EntryId] - pointer to the new entry's Id.
|
||
// [EntryInfo] - pointer to the guts of the entry.
|
||
//
|
||
// Returns: [STATUS_SUCCESS] if no error.
|
||
// [STATUS_INVALID_PARAMETER] - if the EntryId does not have a
|
||
// UID or a Prefix (no such thing as an anonymous entry).
|
||
// [PKT_ENTRY_EXISTS] - a new prefix table entry could not
|
||
// be made.
|
||
//
|
||
// Notes: The EntryId and EntryInfo structures are MOVED (not
|
||
// COPIED) to the new entry. The memory used for UNICODE_STRINGS
|
||
// and DFS_SERVICE arrays is used by the new entry. The
|
||
// associated fields in the EntryId and EntryInfo
|
||
// structures passed as arguments are Zero'd to indicate that
|
||
// the memory has been "deallocated" from these strutures and
|
||
// reallocated to the newly create Entry. Note that this
|
||
// routine does not deallocate the EntryId structure or
|
||
// the EntryInfo structure itself. On successful return from
|
||
// this function, the EntryId structure will be modified
|
||
// to have a NULL Prefix entry, and the EntryInfo structure
|
||
// will be modified to have zero services and a null ServiceList
|
||
// entry.
|
||
//
|
||
//--------------------------------------------------------------------------
|
||
NTSTATUS
|
||
PktEntryAssemble(
|
||
IN OUT PDFS_PKT_ENTRY Entry,
|
||
IN PDFS_PKT Pkt,
|
||
IN ULONG EntryType,
|
||
IN PDFS_PKT_ENTRY_ID EntryId,
|
||
IN PDFS_PKT_ENTRY_INFO EntryInfo,
|
||
IN PDFS_TARGET_INFO pDfsTargetInfo
|
||
)
|
||
{
|
||
NTSTATUS status = STATUS_SUCCESS;
|
||
ULONG i;
|
||
PDFS_SERVICE pService;
|
||
|
||
DfsDbgTrace(+1, Dbg, "PktEntryAssemble: Entered\n", 0);
|
||
|
||
ASSERT(ARGUMENT_PRESENT(Entry) &&
|
||
ARGUMENT_PRESENT(EntryId));
|
||
|
||
//
|
||
// We do not allow the creation of entries
|
||
// without any Uid or Prefix.
|
||
//
|
||
|
||
if (NullGuid(&EntryId->Uid) && EntryId->Prefix.Length == 0) {
|
||
DfsDbgTrace(-1, Dbg, "PktEntryAssemble: Exit -> %08lx\n",
|
||
ULongToPtr(STATUS_INVALID_PARAMETER) );
|
||
return STATUS_INVALID_PARAMETER;
|
||
}
|
||
|
||
//
|
||
// Zero out the entry.
|
||
//
|
||
RtlZeroMemory(Entry, sizeof(DFS_PKT_ENTRY));
|
||
|
||
//
|
||
// Mundane initialization
|
||
//
|
||
Entry->NodeTypeCode = DSFS_NTC_PKT_ENTRY;
|
||
Entry->NodeByteSize = sizeof(DFS_PKT_ENTRY);
|
||
|
||
//
|
||
// Initialize the USN to 1
|
||
//
|
||
Entry->USN = 1;
|
||
|
||
//
|
||
// Move the Type, Id, and Info into this entry.
|
||
//
|
||
Entry->Type = EntryType;
|
||
PktpEntryIdMove(&Entry->Id, EntryId);
|
||
if (ARGUMENT_PRESENT(EntryInfo)) {
|
||
PktpEntryInfoMove(&Entry->Info, EntryInfo);
|
||
|
||
for (i = 0; i < Entry->Info.ServiceCount; i++) {
|
||
Entry->Info.ServiceList[i].pMachEntry->UseCount = 1;
|
||
}
|
||
|
||
//
|
||
// If we are setting up a PKT_ENTRY_TYPE_REFERRAL_SVC entry then we want
|
||
// to mark ALL of its services to be REFERRAL_SERVICES as well.
|
||
//
|
||
if (EntryType & PKT_ENTRY_TYPE_REFERRAL_SVC) {
|
||
pService = Entry->Info.ServiceList;
|
||
for (i=0; i<Entry->Info.ServiceCount; i++) {
|
||
pService->Type = pService->Type | DFS_SERVICE_TYPE_REFERRAL;
|
||
pService++;
|
||
}
|
||
}
|
||
//
|
||
// Now we need to make sure that there is only one copy of the
|
||
// DS_MACHINE structures for each of the above services that we added.
|
||
//
|
||
if (!(EntryType & PKT_ENTRY_TYPE_NONDFS)) {
|
||
status = DfsFixDSMachineStructs(Entry);
|
||
if (!NT_SUCCESS(status)) {
|
||
//
|
||
// We messed up. This means that something is really messed up.
|
||
//
|
||
DfsDbgTrace(0, 1,
|
||
"DFS: DfsFixDSMachineStructs failed for %wZ\n",
|
||
&Entry->Id.Prefix);
|
||
|
||
PktpEntryIdMove(EntryId, &Entry->Id);
|
||
|
||
if (ARGUMENT_PRESENT(EntryInfo))
|
||
PktpEntryInfoMove(EntryInfo, &Entry->Info);
|
||
|
||
return(status);
|
||
}
|
||
}
|
||
}
|
||
//
|
||
// Initialize the head of the subordinate list.
|
||
//
|
||
InitializeListHead(&Entry->SubordinateList);
|
||
|
||
//
|
||
// Initialize the head of the childList.
|
||
//
|
||
InitializeListHead(&Entry->ChildList);
|
||
|
||
//
|
||
// Try to get us into the prefix table.
|
||
//
|
||
|
||
if (DfsInsertUnicodePrefix(&Pkt->PrefixTable,
|
||
&Entry->Id.Prefix,
|
||
&Entry->PrefixTableEntry)) {
|
||
|
||
//
|
||
// We successfully created the prefix entry, so now we link
|
||
// this entry into the PKT.
|
||
//
|
||
PktLinkEntry(Pkt, Entry);
|
||
|
||
//
|
||
// And insert into the short prefix table. We don't do error
|
||
// recovery if this fails.
|
||
//
|
||
|
||
DfsInsertUnicodePrefix(&Pkt->ShortPrefixTable,
|
||
&Entry->Id.ShortPrefix,
|
||
&Entry->PrefixTableEntry);
|
||
|
||
} else {
|
||
|
||
//
|
||
// We failed to get the entry into the prefix table. This
|
||
// can only happen if a prefix already exists, and a prefix
|
||
// can only exist if we've really gotten messed up...
|
||
// We disassemble the entry and return an error.
|
||
//
|
||
|
||
DfsDbgTrace(0, 1,
|
||
"DFS: PktEntryAssemble failed prefix table insert of %wZ\n",
|
||
&Entry->Id.Prefix);
|
||
|
||
PktpEntryIdMove(EntryId, &Entry->Id);
|
||
if (ARGUMENT_PRESENT(EntryInfo))
|
||
PktpEntryInfoMove(EntryInfo, &Entry->Info);
|
||
|
||
MupErrorCase++;
|
||
status = DFS_STATUS_ENTRY_EXISTS;
|
||
}
|
||
|
||
if (status == STATUS_SUCCESS)
|
||
{
|
||
Entry->pDfsTargetInfo = pDfsTargetInfo;
|
||
PktAcquireTargetInfo(pDfsTargetInfo);
|
||
}
|
||
DfsDbgTrace(-1, Dbg, "PktEntryAssemble: Exit -> %08lX\n", ULongToPtr(status) );
|
||
|
||
|
||
// Bug 435639: if insert fails dont return SUCCESS!!
|
||
return status;
|
||
}
|
||
|
||
|
||
|
||
//+-------------------------------------------------------------------------
|
||
//
|
||
// Function: PktEntryReassemble, private
|
||
//
|
||
// Synopsis: PktpEntryReassemble blindly reconstructs a partition
|
||
// table entry. It provides a mechanism by which an existing
|
||
// entry can be modified. The caller must have previously
|
||
// determined that no other entry with this UID or Prefix
|
||
// existed. The PKT must be acquired exclusively for this
|
||
// operation.
|
||
//
|
||
// Arguments: [Entry] - a pointer to an entry to be reassembled.
|
||
// [Pkt] - pointer to a initialized (and acquired
|
||
// exclusively) PKT - must be provided if EntryId
|
||
// is provided.
|
||
// [EntryType] - the type of entry to reassemble.
|
||
// [EntryId] - pointer to the entry's new Id.
|
||
// [EntryInfo] - pointer to the new guts of the entry.
|
||
//
|
||
// Returns: [STATUS_SUCCESS] if no error.
|
||
// [STATUS_INVALID_PARAMETER] - if the EntryId does not have a
|
||
// UID or a Prefix (no such thing as an anonymous entry), or
|
||
// and EntryId was provided but a PKT argument was not.
|
||
// [DFS_STATUS_ENTRY_EXISTS] - a new prefix table entry could not
|
||
// be made.
|
||
// [DFS_STATUS_INCONSISTENT] - a new prefix table entry could
|
||
// not be made, and we could not back out of the operation.
|
||
// This status return indicates that the entry is no longer
|
||
// in the prefix table associated with the PKT and that
|
||
// it is likely that the PKT is inconsistent as a result.
|
||
//
|
||
// Notes: The EntryId and EntryInfo structures are MOVED (not
|
||
// COPIED) to the entry, the old Id and Info are destroyed.
|
||
// The memory used for UNICODE_STRINGS and DFS_SERVICE arrays
|
||
// is used by the entry. The associated fields in the EntryId
|
||
// and EntryInfo structures passed as arguments are Zero'd to
|
||
// indicate that the memory has been "deallocated" from these
|
||
// structures and reallocated to the newly created Entry. Note
|
||
// that this routine does not deallocate the EntryId structure
|
||
// or the EntryInfo structure itself. On successful return from
|
||
// this function, the EntryId structure will be modified
|
||
// to have a NULL Prefix entry, and the EntryInfo structure
|
||
// will be modified to have zero services and a null ServiceList
|
||
// entry.
|
||
//
|
||
//--------------------------------------------------------------------------
|
||
NTSTATUS
|
||
PktEntryReassemble(
|
||
IN OUT PDFS_PKT_ENTRY Entry,
|
||
IN PDFS_PKT Pkt,
|
||
IN ULONG EntryType,
|
||
IN PDFS_PKT_ENTRY_ID EntryId,
|
||
IN PDFS_PKT_ENTRY_INFO EntryInfo,
|
||
IN PDFS_TARGET_INFO pDfsTargetInfo
|
||
)
|
||
{
|
||
NTSTATUS status = STATUS_SUCCESS;
|
||
ULONG i;
|
||
PDFS_SERVICE pService;
|
||
|
||
DfsDbgTrace(+1, Dbg, "PktEntryReassemble: Entered\n", 0);
|
||
|
||
ASSERT(ARGUMENT_PRESENT(Entry) &&
|
||
ARGUMENT_PRESENT(Pkt));
|
||
|
||
if (ARGUMENT_PRESENT(EntryId)) {
|
||
|
||
DFS_PKT_ENTRY_ID oldId;
|
||
|
||
//
|
||
// We do not allow the creation of entries
|
||
// without any Prefix.
|
||
//
|
||
|
||
if (EntryId->Prefix.Length == 0) {
|
||
DfsDbgTrace(-1, Dbg, "PktEntryReassemble: Exit -> %08lx\n",
|
||
ULongToPtr(STATUS_INVALID_PARAMETER) );
|
||
return STATUS_INVALID_PARAMETER;
|
||
}
|
||
|
||
//
|
||
// need to get rid of our current prefix info. We save the
|
||
// old Id in case we fail to reassemble the new entry.
|
||
//
|
||
|
||
DfsRemoveUnicodePrefix(&Pkt->PrefixTable, &(Entry->Id.Prefix));
|
||
DfsRemoveUnicodePrefix(&Pkt->ShortPrefixTable, &Entry->Id.ShortPrefix);
|
||
PktpEntryIdMove(&oldId, &Entry->Id);
|
||
|
||
//
|
||
// Now we assemble the new Id and attempt to make a new entry
|
||
// in the Pkt prefix table.
|
||
//
|
||
|
||
PktpEntryIdMove(&Entry->Id, EntryId);
|
||
|
||
if (DfsInsertUnicodePrefix(&Pkt->PrefixTable,
|
||
&Entry->Id.Prefix,
|
||
&Entry->PrefixTableEntry)
|
||
) {
|
||
//
|
||
// Everything looks good so its safe to unload the old Id.
|
||
//
|
||
|
||
DfsInsertUnicodePrefix(&Pkt->ShortPrefixTable,
|
||
&Entry->Id.ShortPrefix,
|
||
&Entry->PrefixTableEntry);
|
||
|
||
PktEntryIdDestroy(&oldId, FALSE);
|
||
} else {
|
||
|
||
//
|
||
// We were unable to make the new prefix entry, so we
|
||
// attempt to back out and put things back the way
|
||
// they were.
|
||
//
|
||
|
||
status = DFS_STATUS_ENTRY_EXISTS;
|
||
|
||
PktpEntryIdMove(EntryId, &Entry->Id);
|
||
PktpEntryIdMove(&Entry->Id, &oldId);
|
||
|
||
status = DfsInsertInPrefixTable(&Pkt->PrefixTable,
|
||
&Entry->Id.Prefix,
|
||
&Entry->PrefixTableEntry);
|
||
|
||
if( !NT_SUCCESS( status ) ) {
|
||
|
||
//
|
||
// We can't get things back to where they were. Return
|
||
// the error that DfsInsertInPrefixTable returned to us
|
||
// (probably STATUS_INSUFFICIENT_RESOURCES)
|
||
//
|
||
// Destory the entry since it can't be found.
|
||
//
|
||
PktEntryDestroy(Entry, Pkt, TRUE);
|
||
DfsDbgTrace(-1, Dbg, "PktEntryReassemble: Exit -> %08lx\n", ULongToPtr(status) );
|
||
return status;
|
||
|
||
} else {
|
||
|
||
DfsInsertUnicodePrefix(&Pkt->ShortPrefixTable,
|
||
&Entry->Id.ShortPrefix,
|
||
&Entry->PrefixTableEntry);
|
||
|
||
}
|
||
|
||
}
|
||
|
||
}
|
||
|
||
//
|
||
// Now we work on the entry info
|
||
//
|
||
|
||
if (NT_SUCCESS(status) && EntryInfo != 0) {
|
||
|
||
//
|
||
// Destroy the existing info structure and move the new
|
||
// one into its place. Note that the active service is
|
||
// Nulled.
|
||
//
|
||
|
||
PktEntryInfoDestroy(&Entry->Info, FALSE);
|
||
PktpEntryInfoMove(&Entry->Info, EntryInfo);
|
||
|
||
for (i = 0; i < Entry->Info.ServiceCount; i++) {
|
||
Entry->Info.ServiceList[i].pMachEntry->UseCount = 1;
|
||
|
||
}
|
||
|
||
if (EntryType & PKT_ENTRY_TYPE_REFERRAL_SVC) {
|
||
pService = Entry->Info.ServiceList;
|
||
for (i=0; i<Entry->Info.ServiceCount; i++) {
|
||
pService->Type = pService->Type | DFS_SERVICE_TYPE_REFERRAL;
|
||
pService++;
|
||
}
|
||
}
|
||
|
||
Entry->ActiveService = NULL;
|
||
|
||
//
|
||
// Now we need to make sure that there is only one copy of the
|
||
// DS_MACHINE structures for each of the above services that we added.
|
||
//
|
||
if (!(EntryType & PKT_ENTRY_TYPE_NONDFS)) {
|
||
status = DfsFixDSMachineStructs(Entry);
|
||
if (!NT_SUCCESS(status)) {
|
||
//
|
||
// We messed up. This means that something is really messed up.
|
||
//
|
||
DfsDbgTrace(0, 1,
|
||
"DFS: DfsFixDSMachineStructs failed for %wZ\n",
|
||
&Entry->Id.Prefix);
|
||
|
||
PktpEntryIdMove(EntryId, &Entry->Id);
|
||
|
||
if (ARGUMENT_PRESENT(EntryInfo))
|
||
PktpEntryInfoMove(EntryInfo, &Entry->Info);
|
||
|
||
return(status);
|
||
}
|
||
}
|
||
}
|
||
|
||
if (NT_SUCCESS(status) && EntryInfo != 0) {
|
||
Entry->Type |= EntryType;
|
||
|
||
//
|
||
// If the new entry type is "local" we adjust all the
|
||
// subordinates to indicate that they are all now
|
||
// local exit points.
|
||
//
|
||
if (Entry->Type & PKT_ENTRY_TYPE_LOCAL) {
|
||
|
||
PDFS_PKT_ENTRY subEntry;
|
||
|
||
for (subEntry = PktEntryFirstSubordinate(Entry);
|
||
subEntry != NULL;
|
||
subEntry = PktEntryNextSubordinate(Entry, subEntry)) {
|
||
|
||
subEntry->Type |= PKT_ENTRY_TYPE_LOCAL_XPOINT;
|
||
}
|
||
}
|
||
|
||
//
|
||
// Finally, we update the USN
|
||
//
|
||
|
||
Entry->USN++;
|
||
DfsDbgTrace(0, Dbg, "Updated USN for %wZ", &Entry->Id.Prefix);
|
||
DfsDbgTrace(0, Dbg, " to %d\n", ULongToPtr(Entry->USN) );
|
||
}
|
||
|
||
if (status == STATUS_SUCCESS)
|
||
{
|
||
if (Entry->pDfsTargetInfo != NULL)
|
||
{
|
||
PktReleaseTargetInfo( Entry->pDfsTargetInfo );
|
||
Entry->pDfsTargetInfo = pDfsTargetInfo;
|
||
PktAcquireTargetInfo( pDfsTargetInfo );
|
||
}
|
||
}
|
||
|
||
DfsDbgTrace(-1, Dbg, "PktEntryReassemble: Exit -> %08lx\n", ULongToPtr(status) );
|
||
return status;
|
||
}
|
||
|
||
|
||
|
||
//+-------------------------------------------------------------------------
|
||
//
|
||
// Function: PktEntryDestroy, public
|
||
//
|
||
// Synopsis: PktEntryDestroy destroys an pkt entry structure, and
|
||
// optionally deallocates the structure itself.
|
||
//
|
||
// Arguments: [Victim] - the entry structure to destroy
|
||
// [Pkt] - pointer to the PKT this entry is in.
|
||
// [DeallocateAll] - if True, indicates that the structure
|
||
// itself is to be deallocated, otherwise, only the
|
||
// service list within the structure is deallocated.
|
||
//
|
||
// Returns: VOID
|
||
//
|
||
// Notes: This should not be called on an entry that has a
|
||
// local service attached, or which is a local exit point.
|
||
//
|
||
//--------------------------------------------------------------------------
|
||
VOID
|
||
PktEntryDestroy(
|
||
IN PDFS_PKT_ENTRY Victim OPTIONAL,
|
||
IN PDFS_PKT Pkt,
|
||
IN BOOLEAN DeallocateAll
|
||
)
|
||
{
|
||
DfsDbgTrace(+1, Dbg, "PktEntryDestroy: Entered\n", 0);
|
||
|
||
ASSERT(ARGUMENT_PRESENT(Pkt));
|
||
|
||
//
|
||
// Make sure we have a victim...
|
||
//
|
||
if (!ARGUMENT_PRESENT(Victim)) {
|
||
DfsDbgTrace(-1, Dbg, "PktEntryDestroy: Exit -> No Victim\n", 0);
|
||
return;
|
||
}
|
||
|
||
//
|
||
// We really don't expect to have a LocalService but then even if we
|
||
// do have one due to running DFSINIT again etc. let us try to handle it.
|
||
//
|
||
|
||
ASSERT(Victim->LocalService == NULL);
|
||
|
||
//
|
||
// Remove the entry from the prefix table and from the PKT.
|
||
//
|
||
|
||
DfsRemoveUnicodePrefix(&Pkt->PrefixTable, &(Victim->Id.Prefix));
|
||
DfsRemoveUnicodePrefix(&Pkt->ShortPrefixTable, &(Victim->Id.ShortPrefix));
|
||
PktUnlinkEntry(Pkt, Victim);
|
||
|
||
//
|
||
// We clear away all subordinates and parents.
|
||
//
|
||
PktEntryClearSubordinates(Victim);
|
||
if (Victim->Superior)
|
||
PktEntryUnlinkSubordinate(Victim->Superior, Victim);
|
||
|
||
//
|
||
// We clear all the children and parent pointers from here.
|
||
//
|
||
PktEntryClearChildren(Victim);
|
||
if (Victim->ClosestDC) {
|
||
PktEntryUnlinkChild(Victim->ClosestDC, Victim);
|
||
}
|
||
|
||
//
|
||
// Now destroy the body of the entry (id, and info).
|
||
//
|
||
|
||
Victim->ActiveService = NULL;
|
||
PktEntryIdDestroy(&Victim->Id, FALSE);
|
||
PktEntryInfoDestroy(&Victim->Info, FALSE);
|
||
|
||
|
||
if (Victim->pDfsTargetInfo != NULL)
|
||
{
|
||
PktReleaseTargetInfo(Victim->pDfsTargetInfo);
|
||
Victim->pDfsTargetInfo = NULL;
|
||
}
|
||
//
|
||
// Deallocate everything if they want us to.
|
||
//
|
||
if (DeallocateAll)
|
||
ExFreePool(Victim);
|
||
|
||
|
||
DfsDbgTrace(-1, Dbg, "PktEntryDestroy: Exit -> VOID\n", 0);
|
||
}
|
||
|
||
|
||
//+-------------------------------------------------------------------------
|
||
//
|
||
// Function: PktEntryClearSubordinates, public
|
||
//
|
||
// Synopsis: PktEntryClearSubordinates unlinks all subordinates from
|
||
// this entry.
|
||
//
|
||
// Arguments: [PktEntry] - a pointer to an entry that is to have all its
|
||
// subordinates unlinked.
|
||
//
|
||
// Returns: VOID
|
||
//
|
||
// Notes:
|
||
//
|
||
//--------------------------------------------------------------------------
|
||
VOID
|
||
PktEntryClearSubordinates(
|
||
IN PDFS_PKT_ENTRY PktEntry
|
||
)
|
||
{
|
||
PDFS_PKT_ENTRY subEntry;
|
||
|
||
DfsDbgTrace(+1, Dbg, "PktEntryClearSubordinates: Entered\n", 0);
|
||
|
||
ASSERT(ARGUMENT_PRESENT(PktEntry));
|
||
|
||
subEntry = PktEntryFirstSubordinate(PktEntry);
|
||
while (subEntry) {
|
||
PktEntryUnlinkSubordinate(PktEntry, subEntry);
|
||
subEntry = PktEntryFirstSubordinate(PktEntry);
|
||
}
|
||
|
||
DfsDbgTrace(-1, Dbg, "PktEntryClearSubordinates: Exit -> VOID\n", 0)
|
||
}
|
||
|
||
|
||
|
||
//+-------------------------------------------------------------------------
|
||
//
|
||
// Function: PktEntryClearChildren, public
|
||
//
|
||
// Synopsis: PktEntryClearChildren unlinks all children from
|
||
// this entry.
|
||
//
|
||
// Arguments: [PktEntry] - a pointer to an entry that is to have all its
|
||
// children unlinked.
|
||
//
|
||
// Returns: VOID
|
||
//
|
||
// Notes:
|
||
//
|
||
//--------------------------------------------------------------------------
|
||
|
||
VOID
|
||
PktEntryClearChildren(
|
||
IN PDFS_PKT_ENTRY PktEntry
|
||
)
|
||
{
|
||
PDFS_PKT_ENTRY subEntry;
|
||
|
||
DfsDbgTrace(+1, Dbg, "PktEntryClearChildren: Entered\n", 0);
|
||
|
||
ASSERT(ARGUMENT_PRESENT(PktEntry));
|
||
|
||
subEntry = PktEntryFirstChild(PktEntry);
|
||
while (subEntry) {
|
||
PktEntryUnlinkAndRelinkChild(PktEntry, subEntry);
|
||
subEntry = PktEntryFirstChild(PktEntry);
|
||
}
|
||
|
||
DfsDbgTrace(-1, Dbg, "PktEntryClearChildren: Exit -> VOID\n", 0)
|
||
}
|
||
|
||
//+-------------------------------------------------------------------------
|
||
//
|
||
// Function: PktSpecialEntryDestroy, public
|
||
//
|
||
// Synopsis: Returns a DFS_SPECIAL_ENTRY's expansion list to the free pool
|
||
//
|
||
// Arguments: [pSpecialEntry] - Pointer to DFS_SPECIAL_ENTRY
|
||
//
|
||
// Returns: VOID
|
||
//
|
||
// Notes:
|
||
//
|
||
//--------------------------------------------------------------------------
|
||
|
||
VOID
|
||
PktSpecialEntryDestroy(
|
||
IN PDFS_SPECIAL_ENTRY pSpecialEntry)
|
||
{
|
||
PDFS_EXPANDED_NAME pExpandedNames = pSpecialEntry->ExpandedNames;
|
||
PUNICODE_STRING pustr;
|
||
ULONG i;
|
||
|
||
//
|
||
// Free all the UNICODE_STRING ExpandedName buffers
|
||
//
|
||
if (pExpandedNames) {
|
||
for (i = 0; i < pSpecialEntry->ExpandedCount; i++) {
|
||
pustr = &pExpandedNames[i].ExpandedName;
|
||
if (pustr->Buffer) {
|
||
ExFreePool(pustr->Buffer);
|
||
}
|
||
}
|
||
//
|
||
// Free the array of ExpandedNames
|
||
//
|
||
ExFreePool(pExpandedNames);
|
||
}
|
||
|
||
//
|
||
// Free the SpecialName buffer
|
||
//
|
||
|
||
if (pSpecialEntry->SpecialName.Buffer != NULL) {
|
||
|
||
ExFreePool(pSpecialEntry->SpecialName.Buffer);
|
||
|
||
}
|
||
|
||
//
|
||
// Free the entry itself
|
||
//
|
||
ExFreePool(pSpecialEntry);
|
||
}
|