168 lines
4.8 KiB
C
168 lines
4.8 KiB
C
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/*++
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Copyright (c) 1989 Microsoft Corporation
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Module Name:
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srvconst.h
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Abstract:
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This module defines manifest constants for the LAN Manager server.
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Author:
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Chuck Lenzmeier (chuckl) 22-Sep-1989
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Revision History:
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--*/
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#ifndef _SRVCONST_
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#define _SRVCONST_
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// !!! #include <lmcons.h>
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// !!! The following constant should be gotten from netcons.h
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#define COMPUTER_NAME_LENGTH 15
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//
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// This is the size of the data for doing oplock breaks. Used to compute
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// round trip propagation delays.
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//
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#define SRV_PROPAGATION_DELAY_SIZE (ULONG) \
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(sizeof(SMB_HEADER) + sizeof(REQ_LOCKING_ANDX) + \
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sizeof(SMB_HEADER) + sizeof(RESP_LOCKING_ANDX) + 100)
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//
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// The number of slots in the error log record array, must be a power
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// of 2.
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//
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#define NUMBER_OF_SLOTS 8
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//
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// The number of entries in the SrvMfcbHashTable. Arbitrary.
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//
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#define NMFCB_HASH_TABLE 131
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//
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// The number of resources which guard entries in SrvMfcbHashTable. Only makes
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// sense for this number to be <= NMFCB_HASH_TABLE.
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//
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#define NMFCB_HASH_TABLE_LOCKS 10 // arbitrary
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//
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// The number of entries in the SrvShareHashTable. Arbitrary
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//
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#define NSHARE_HASH_TABLE 17
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//
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// The number of pieces of pool we'll hang onto in a LOOK_ASIDE_LIST
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// after deallocation for quick re-allocation. Per processor.
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// Involves a linear search...
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//
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#define LOOK_ASIDE_MAX_ELEMENTS 4
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//
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// Two look aside lists for quick pool allocation and deallocation are
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// kept, and a POOL_HEADER goes on one list or the other depending on
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// the size of the allocated block. This is to reduce memory wastage.
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// LOOK_ASIDE_SWITCHOVER is the maximum block size for a memory chunk
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// to end up on the SmallFreeList in the LOOK_ASIDE_LIST
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//
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#define LOOK_ASIDE_SWITCHOVER 32
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//
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// We have to multiply the ea size we get back from the system to get
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// the buffer size we need to query the ea. This is because the returned
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// ea size is the os/2 ea size.
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//
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#define EA_SIZE_FUDGE_FACTOR 2
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#define ENDPOINT_LOCK_COUNT 4
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#define ENDPOINT_LOCK_MASK (ENDPOINT_LOCK_COUNT-1)
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//
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// The server keeps a table of NTSTATUS codes that it will avoid putting in
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// the error log. This is the number of codes we can hold
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//
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#define SRVMAXERRLOGIGNORE 50
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//
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// The following constants are copied from net\inc\apinums.h
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// This is a list of apis and apinumbers that are callable
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// on the null session.
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//
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#define API_WUserGetGroups 59
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#define API_WUserPasswordSet2 115
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#define API_NetServerEnum2 104
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#define API_WNetServerReqChallenge 126
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#define API_WNetServerAuthenticate 127
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#define API_WNetServerPasswordSet 128
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#define API_WNetAccountDeltas 129
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#define API_WNetAccountSync 130
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#define API_WWkstaUserLogoff 133
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#define API_WNetWriteUpdateLog 208
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#define API_WNetAccountUpdate 209
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#define API_WNetAccountConfirmUpdate 210
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#define API_SamOEMChgPasswordUser2_P 214
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#define API_NetServerEnum3 215
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//
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// This is the presumed cache line size for the processor
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//
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#define CACHE_LINE_SIZE 32
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//
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// This is the number of ULONGS in a cache line
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//
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#define ULONGS_IN_CACHE (CACHE_LINE_SIZE / sizeof( ULONG ))
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//
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// This is the number of samples used to compute the average WORK_QUEUE depth.
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// Must be a power of 2
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//
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#define QUEUE_SAMPLES 8
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//
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// This is Log2( QUEUE_SAMPLES )
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//
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#define LOG2_QUEUE_SAMPLES 3
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//
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// If we have an IPX client, we want to drop every few retries of the same SMB
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// by the client to decrease the server load. WIN95 backs off its requests
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// when it gets ERR_WORKING, but wfw does not. So, there's no value (from the
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// server's perspective) in responding very often to the wfw client. The WfW
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// client retries approx every 300mS, and must receive a response in approx 9
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// seconds. Therefore, we choose 9 drops as approx 3 seconds. This will allow two
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// of our responses to be dropped and will allow enough time for the client to
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// try a third time.
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//
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#define MIN_IPXDROPDUP 2
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#define MAX_IPXDROPDUP 9
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//
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// The number of configuration work items. This roughly governs the number of kernel
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// worker threads which will be occupied processing configuration irps
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//
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#define MAX_CONFIG_WORK_ITEMS 2
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//
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// The maximum size of the buffer associated with a TRANSACTION
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//
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#define MAX_TRANSACTION_TAIL_SIZE 65*1024
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//
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// The number of times we will continue doing paged writes with WriteThrough
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// set before we try and go back to cached writes. This is used in situations
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// where the cache manager has hit the cache throttle to prevent deadlocks
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//
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#define MAX_FORCED_WRITE_THROUGH 64
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#endif // ndef _SRVCONST_
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