226 lines
6.1 KiB
C
226 lines
6.1 KiB
C
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/*++
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Copyright (c) 1992-1993 Microsoft Corporation
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Module Name:
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nwmisc.h
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Abstract:
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Header which specifies the misc routines used by the workstation service.
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Author:
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Arnold Miller (arnoldm) 15-Feb-1996
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Revision History:
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--*/
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#ifndef __RNRDEFS_H__
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#define __RNRDEFS_H__
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#include "sapcmn.h"
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//
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// Bit defs for the protocols
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//
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#define IPX_BIT 1
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#define SPX_BIT 2
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#define SPXII_BIT 4
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//
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// forwards\
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//
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struct _SAP_RNR_CONTEXT;
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//
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// Bindery control
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//
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typedef struct _BinderyControl
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{
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LONG lIndex;
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} BINDERYCONTROL, *PBINDERYCONTROL;
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//
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// SAP RnR context information. This is linked off of the
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// SAP_BCAST_CONTROL defined ahead
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//
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typedef struct _SAP_DATA
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{
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struct _SAP_DATA * sapNext;
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// save everything except hop count
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WORD sapid; // for a sanity check
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CHAR sapname[48]; // what we don't know
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BYTE socketAddr[IPX_ADDRESS_LENGTH]; // and what we seek
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} SAP_DATA, *PSAP_DATA;
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//
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//
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// Sap bcast control
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// An important note. fFlags is set only by the thread executing
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// a LookupServiceBegin or a LookupServiceNext. It may be tested by
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// any thread. Its counterpart, dwControlFlags in SAP_RNR_CONTEXT
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// is reserved for setting by LookupServiceBegin and LookupServiceEnd. Once
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// again any thread may look at it. This insures no loss of data on an
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// MP machine without needing a critical section.
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//
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typedef struct _SAP_BCAST_CONTROL
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{
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DWORD dwIndex; // loop control
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DWORD dwTickCount; // tick count of last send
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DWORD fFlags; // various flags
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PVOID pvArg;
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SOCKET s;
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CRITICAL_SECTION csMonitor; // This is to keep
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// out internal structures sane. Note
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// it does not provide rational
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// serialization. In particular, if
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// multiple threads use the same
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// handle simultaneously, there is no
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// guaranteed serialization.
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PSAP_DATA psdNext1; // next to return
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PSAP_DATA psdHead; // list head
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PSAP_DATA psdTail;
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struct _SAP_RNR_CONTEXT * psrc; // need this
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DWORD (*Func)(PVOID pvArg1, PSAP_IDENT_HEADER pSap, PDWORD pdwErr);
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BOOL (*fCheckCancel)(PVOID pvArg1);
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WORD wQueryType;
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} SAP_BCAST_CONTROL, *PSAP_BCAST_CONTROL;
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//
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// Flags for above
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#define SBC_FLAG_NOMORE 0x1
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//
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// Structure used by the old RnR Sap lookup as the pvArg value in
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// SAP_BCAST control
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//
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#ifndef _NTDEF_
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typedef struct _STRING {
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USHORT Length;
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USHORT MaximumLength;
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#ifdef MIDL_PASS
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[size_is(MaximumLength), length_is(Length) ]
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#endif // MIDL_PASS
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PCHAR Buffer;
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} OEM_STRING;
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#endif
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typedef struct _OldRnRSap
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{
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OEM_STRING * poem;
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HANDLE hCancel;
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LPVOID lpCsAddrBuffer;
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LPDWORD lpdwBufferLength;
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DWORD nProt;
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LPDWORD lpcAddress;
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} OLDRNRSAP, *POLDRNRSAP;
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//
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// Return codes from the coroutine
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//
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#define dwrcDone 1 // all done, return success
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#define dwrcCancel 2 // all done, return cancelled
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#define dwrcNoWait 3 // keep going, but never wait.
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#define dwrcNil 4 // do whatever you want
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//
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// Sap service query packet format
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//
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typedef struct _SAP_REQUEST {
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USHORT QueryType;
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USHORT ServerType;
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} SAP_REQUEST, *PSAP_REQUEST;
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#define QT_GENERAL_QUERY 1
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#define QT_NEAREST_QUERY 3
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// The context information we put inside of an RNRNSHANDLE structure
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// to keep track of what we are doing
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// N.B. See comment on SAP_BCAST_CONTROL about the use of dwControlFlags.
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//
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typedef struct _SAP_RNR_CONTEXT
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{
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struct _SAP_RNR_CONTEXT * pNextContext;
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LONG lSig;
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LONG lInUse;
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DWORD dwCount; // count of queries made
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DWORD fFlags; // always nice to have
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DWORD dwControlFlags;
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DWORD fConnectionOriented;
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WORD wSapId; // the type desired
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HANDLE Handle; // the corresponding RnR handle
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DWORD nProt;
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GUID gdType; // the type we are seeking
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GUID gdProvider;
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HANDLE hServer;
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WCHAR wszContext[48];
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WCHAR chwName[48]; // the name, if any
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CHAR chName[48]; // OEM form of the name for SAP
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DWORD dwUnionType; // type of lookup, once we know
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union
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{
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SAP_BCAST_CONTROL sbc;
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BINDERYCONTROL bc;
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} u_type;
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PVOID pvVersion; // a trick to get the version here.
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} SAP_RNR_CONTEXT, *PSAP_RNR_CONTEXT;
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#define RNR_SIG 0xaabbccdd
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//
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// union types
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//
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#define LOOKUP_TYPE_NIL 0
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#define LOOKUP_TYPE_SAP 1
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#define LOOKUP_TYPE_BINDERY 2
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#define SAP_F_END_CALLED 0x1 // generic cancel
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//
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// Defs for the bindery Class info
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// This defines the format of each ClassInfo property segement. It looks
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// somewhat like an actual ClassInfo, but considerably compressed. Note
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// due to marshalling problems, any complex value, such as a GUID,
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// should be stored as a string and then imported. Hence, we define
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// types for what we can anticipate.
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//
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typedef struct _BinderyClasses
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{
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BYTE bType;
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BYTE bSizeOfType;
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BYTE bSizeOfString;
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BYTE bOffset; // where the data area begins
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BYTE bFlags;
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BYTE bFiller;
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WORD wNameSpace; // the applicable namespace
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CHAR cDataArea[120]; // where the type and string are placed
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} BINDERYCLASSES, *PBINDERYCLASSES;
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#define BT_DWORD 1 // DWORD
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#define BT_WORD 2 // WORD
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#define BT_GUID 3 // a string GUID (ASCII)
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#define BT_STR 3 // an OEM string
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#define BT_OID 4 // an object ID (TBD)
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#define BT_BSTR 5 // a binary string (very dangerous)
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#define BT_WSTR 6 // UNICODE string. Unmarshalled!
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#define RNRTYPE "RNR_TYPE" // prop containing the GUID
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#define RNRCLASSES "RNR_CLASSES" // the other property
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#endif
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