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diff --git a/private/inc/svcs.h b/private/inc/svcs.h
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+++ b/private/inc/svcs.h
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+/*++
+
+Copyright (c) 1990  Microsoft Corporation
+
+Module Name:
+
+    svcs.h
+
+Abstract:
+
+    This file contains definitions used by service dlls that share
+    a process in the system.  The SERVICES.EXE process is an example of
+    a user of these definitions.
+
+
+Author:
+
+    Rajen Shah	    rajens	12-Apr-1991
+
+[Environment:]
+
+    User Mode - Win32
+
+Revision History:
+
+    25-Oct-1993     Danl
+        Used to be services.h in the net\inc directory.
+        Made it non-network specific and moved to private\inc.
+
+    12-Apr-1991     RajenS
+        Created
+
+--*/
+#ifndef _SVCS_
+#define _SVCS_
+
+#ifndef RPC_NO_WINDOWS_H // Don't let rpc.h include windows.h
+#define RPC_NO_WINDOWS_H
+#endif // RPC_NO_WINDOWS_H
+
+#include <rpc.h>                    // RPC_IF_HANDLE
+
+//
+// Service DLLs loaded into services.exe all export the same main
+// entry point.  SVCS_ENTRY_POINT defines that name.
+//
+// Note that SVCS_ENTRY_POINT_STRING is always ANSI, because that's
+// what GetProcAddress takes.
+//
+
+#define SVCS_ENTRY_POINT        ServiceEntry
+#define SVCS_ENTRY_POINT_STRING "ServiceEntry"
+
+//
+// Name for the common RPC pipe shared by all the RPC servers in services.exe.
+// Note:  Because version 1.0 of WinNt had seperate names for each server's
+// pipe, the client side names have remained the same.  Mapping to the new
+// name is handled by the named pipe file system.
+//
+#define SVCS_RPC_PIPE           L"ntsvcs"
+
+//
+// Flags indicating how a work item is to be operated upon.
+//      SVC_QUEUE_WORK_ITEM  - This indicates that the work item should be
+//          placed in the work queue to be operated upon when a worker
+//          thread becomes available.
+//      SVC_IMMEDIATE_CALLBACK - This indicates that the Watcher Thread
+//          should make the callback and return the response prior to
+//          returning from this call to SvcAddWorkItem.  This allows
+//          asynchronous I/O events to be setup in the context of the
+//          Watcher Thread, which never goes away.  If the service had
+//          a worker thread setup the async I/O operation, the operation
+//          would become signalled as soon as the worker thread was
+//          terminated.  I/O is terminated when the requesting thread
+//          goes away.
+//
+#define SVC_QUEUE_WORK_ITEM     0x00000001
+#define SVC_IMMEDIATE_CALLBACK  0x00000002
+
+//
+// Start and stop RPC server entry point prototype.
+//
+
+typedef
+DWORD
+(*PSVCS_START_RPC_SERVER) (
+    IN LPTSTR InterfaceName,
+    IN RPC_IF_HANDLE InterfaceSpecification
+    );
+
+typedef
+DWORD
+(*PSVCS_STOP_RPC_SERVER) (
+    IN RPC_IF_HANDLE InterfaceSpecification
+    );
+
+typedef
+VOID
+(*PSVCS_NET_BIOS_OPEN) (
+    VOID
+    );
+
+typedef
+VOID
+(*PSVCS_NET_BIOS_CLOSE) (
+    VOID
+    );
+
+typedef
+DWORD
+(*PSVCS_NET_BIOS_RESET) (
+    IN UCHAR LanAdapterNumber
+    );
+
+//
+// Thread Management
+//
+
+typedef
+DWORD
+(*PSVCS_WORKER_CALLBACK) (
+    IN PVOID    pContext,
+    IN DWORD    dwWaitStatus
+    );
+
+//
+// Call this function to add a work item
+typedef
+HANDLE
+(*PSVCS_ADD_WORK_ITEM) (
+    IN HANDLE                   hWaitableObject,
+    IN PSVCS_WORKER_CALLBACK    pCallbackFunction,
+    IN PVOID                    pContext,
+    IN DWORD                    dwFlags,
+    IN DWORD                    dwTimeout,
+    IN HANDLE                   hDllReference
+    );
+
+//
+// Call this function to remove a work item.
+typedef
+BOOL
+(*PSVCS_REMOVE_WORK_ITEM) (
+    IN HANDLE   hWorkItem
+    );
+
+
+//
+// Structure containing "global" data for the various DLLs.
+//
+
+typedef struct _SVCS_GLOBAL_DATA {
+
+    //
+    // NT well-known SIDs
+    //
+
+    PSID NullSid;                   // No members SID
+    PSID WorldSid;                  // All users SID
+    PSID LocalSid;                  // NT local users SID
+    PSID NetworkSid;                // NT remote users SID
+    PSID LocalSystemSid;            // NT system processes SID
+    PSID BuiltinDomainSid;          // Domain Id of the Builtin Domain
+
+    //
+    // Well Known Aliases.
+    //
+    // These are aliases that are relative to the built-in domain.
+    //
+
+    PSID AliasAdminsSid;            // Administrator Sid
+    PSID AliasUsersSid;             // User Sid
+    PSID AliasGuestsSid;            // Guest Sid
+    PSID AliasPowerUsersSid;        // Power User Sid
+    PSID AliasAccountOpsSid;        // Account Operator Sid
+    PSID AliasSystemOpsSid;         // System Operator Sid
+    PSID AliasPrintOpsSid;          // Print Operator Sid
+    PSID AliasBackupOpsSid;         // Backup Operator Sid
+
+    //
+    // Entry points provided by SERVICES.EXE.
+    //
+
+    PSVCS_START_RPC_SERVER  StartRpcServer;
+    PSVCS_STOP_RPC_SERVER   StopRpcServer;
+    PSVCS_NET_BIOS_OPEN     NetBiosOpen;
+    PSVCS_NET_BIOS_CLOSE    NetBiosClose;
+    PSVCS_NET_BIOS_RESET    NetBiosReset;
+    LPWSTR                  SvcsRpcPipeName;
+    PSVCS_ADD_WORK_ITEM     SvcsAddWorkItem;
+    PSVCS_REMOVE_WORK_ITEM  SvcsRemoveWorkItem;
+} SVCS_GLOBAL_DATA, *PSVCS_GLOBAL_DATA;
+
+//
+// Service DLL entry point prototype.
+//
+
+typedef
+VOID
+(*PSVCS_SERVICE_DLL_ENTRY) (
+    IN DWORD argc,
+    IN LPTSTR argv[],
+    IN PSVCS_GLOBAL_DATA pGlobalData,
+    IN HANDLE SvcReferenceHandle
+    );
+
+#endif	// ndef _SVCS_