80 lines
2.9 KiB
C
80 lines
2.9 KiB
C
|
|
/***************************************************************************
|
|
*
|
|
* TD.H
|
|
*
|
|
* This module contains Transport Driver defines and structures
|
|
*
|
|
* Copyright Microsoft, 1998
|
|
*
|
|
*
|
|
****************************************************************************/
|
|
|
|
/*
|
|
* Maximum number of zero byte reads before we will drop the client connection
|
|
*/
|
|
#define MAXIMUM_ZERO_BYTE_READS 100
|
|
|
|
/*
|
|
* TD error message structure
|
|
*/
|
|
typedef struct _TDERRORMESSAGE {
|
|
ULONG Error;
|
|
char * pMessage;
|
|
} TDERRORMESSAGE, * PTDERRORMESSAGE;
|
|
|
|
/*
|
|
* TD structure
|
|
*/
|
|
typedef struct _TD {
|
|
|
|
PSDCONTEXT pContext;
|
|
|
|
ULONG PdFlag; // pd flags (PD_?)
|
|
SDCLASS SdClass; // class of sd (PdAsync, PdReli, ...)
|
|
PDPARAMS Params; // pd parameters
|
|
PCLIENTMODULES pClient; // pointer to winstation client data structure
|
|
PPROTOCOLSTATUS pStatus; // pointer to winstation status structure
|
|
|
|
PFILE_OBJECT pFileObject; // file object for transport I/O
|
|
PDEVICE_OBJECT pDeviceObject; // device object for transport I/O
|
|
|
|
ULONG LastError; // error code of last protocol error
|
|
ULONG ReadErrorCount; // count of consecutive read errors
|
|
ULONG ReadErrorThreshold; // max allowed consecutive read errors
|
|
ULONG WriteErrorCount; // count of consecutive write errors
|
|
ULONG WriteErrorThreshold; // max allowed consecutive write errors
|
|
ULONG ZeroByteReadCount; // count of consecutive zero byte reads
|
|
|
|
ULONG PortNumber; // network listen port number
|
|
|
|
ULONG OutBufHeader; // number of reserved header bytes for this td
|
|
ULONG OutBufTrailer; // number of reserved trailer bytes for this td
|
|
ULONG OutBufLength; // length of input/output buffers
|
|
|
|
LIST_ENTRY IoBusyOutBuf; // pointer to i/o busy outbufs
|
|
KEVENT SyncWriteEvent; // event waited on by SyncWrite
|
|
|
|
PKTHREAD pInputThread; // input thread pointer
|
|
LONG InBufCount; // count of INBUFs to allocate
|
|
KSPIN_LOCK InBufListLock; // spinlock to protect INBUF Busy/Done lists
|
|
LIST_ENTRY InBufBusyHead; // list of busy INBUFs (waiting for input)
|
|
LIST_ENTRY InBufDoneHead; // list of completed INBUFs (with input data)
|
|
ULONG InBufHeader; // number of reserved header bytes for this td
|
|
KEVENT InputEvent; // input event
|
|
|
|
ULONG fClosing: 1; // stack driver is closing
|
|
ULONG fCallbackInProgress: 1; // modem callback in progress
|
|
ULONG fSyncWriteWaiter: 1; // there is a waiter in SyncWrite
|
|
|
|
PVOID pPrivate; // pointer to private pd data
|
|
PVOID pAfd; // pointer to private afd data
|
|
LIST_ENTRY WorkItemHead; // preallocated workitem list.
|
|
|
|
PDEVICE_OBJECT pSelfDeviceObject;// device object for this driver
|
|
|
|
ULONG UserBrokenReason; // broken reason sent down from the user
|
|
|
|
} TD, * PTD;
|
|
|