450 lines
14 KiB
C
450 lines
14 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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transprt.h
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Abstract:
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This module implements all transport related functions in the SMB connection
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engine
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Revision History:
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Balan Sethu Raman [SethuR] 6-March-1995
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Notes:
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--*/
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#ifndef _TRANSPRT_H_
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#define _TRANSPRT_H_
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// The SMBCE_TRANSPORT data structure encapsulates all the information w.r.t a
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// particular transport for the connection engine. All the transports that are
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// of interest to the SMB mini redirector are maintained in a doubly linked list
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//
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// The connection engine tries all the transports in this list when trying to
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// establish a connection to a server. Currently only connection oriented
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// transports are handled.
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typedef struct _SMBCE_TRANSPORT_ {
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SMBCE_OBJECT_HEADER;
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RXCE_TRANSPORT RxCeTransport;
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RXCE_ADDRESS RxCeAddress;
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ULONG Priority; // the priority in the binding list.
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BOOLEAN Active;
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// Additional information regarding quality of service and other selection
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// criterion for a transport will be included here.
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} SMBCE_TRANSPORT, *PSMBCE_TRANSPORT;
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typedef struct _SMBCE_TRANSPORT_ARRAY_ {
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ULONG ReferenceCount;
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ULONG Count;
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PSMBCE_TRANSPORT *SmbCeTransports;
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PRXCE_ADDRESS *LocalAddresses;
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} SMBCE_TRANSPORT_ARRAY, *PSMBCE_TRANSPORT_ARRAY;
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typedef struct _SMBCE_TRANSPORTS_ {
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RX_SPIN_LOCK Lock;
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PSMBCE_TRANSPORT_ARRAY pTransportArray;
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} SMBCE_TRANSPORTS, *PSMBCE_TRANSPORTS;
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extern SMBCE_TRANSPORTS MRxSmbTransports;
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// Transport entries are added to the list of known transports upon receipt of
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// PnP notifications. Currently the list is static since transport disabling
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// notifications are not handled by the underlying TDI/PnP layer.
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// The following routines provide the ability for adding/deleting entries to
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// this list.
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extern
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PSMBCE_TRANSPORT_ARRAY
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SmbCeReferenceTransportArray(VOID);
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extern NTSTATUS
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SmbCeDereferenceTransportArray(PSMBCE_TRANSPORT_ARRAY pTransportArray);
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extern NTSTATUS
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SmbCeAddTransport(PSMBCE_TRANSPORT pTransport);
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extern NTSTATUS
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SmbCeRemoveTransport(PSMBCE_TRANSPORT pTransport);
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#define SmbCeGetAvailableTransportCount() \
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(MRxSmbTransports.Count)
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// The connection engine maintains a reference count associated with each transport
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// which indicates the number of servers that are using the transport. This will
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// eventually provide the mechanism for disabling/enabling transport on receipt
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// of PnP notifications.
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#define SmbCeReferenceTransport(pTransport) \
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SmbCepReferenceTransport(pTransport)
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#define SmbCeDereferenceTransport(pTransport) \
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SmbCepDereferenceTransport(pTransport)
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// The server transport types encapsulate the various usages of the underlying
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// transport to communicate with a server. For example the type of interactions
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// with a mailslot server ( primarily datagrams ) is very different from the
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// interactions with a FILE SERVER ( connection oriented send/receives). The
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// type of interactions can be further classified by the underlying connection
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// characterstics, e.g., connecting to a FILE_SERVER over a RAS connection as
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// opposed to connecting to a file server over EtherNet.
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//
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// The interactions are currently classified into four types, MAILSOT, Virtual
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// Circuit, Datagram and Htbrid ( VC + Datagram ).
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//
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// The type chosen will depend upon the characterstics of the available
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// connection. Each type is associated with its own dispatch vector which
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// encapsulates the interaction between the connection engine and the transport.
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//
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// This includes Send,Receive, Receive Ind. etc. These are modelled after the
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// TDI interfaces.
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typedef enum _SMBCE_SERVER_TRANSPORT_TYPE_ {
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SMBCE_STT_MAILSLOT = 1,
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SMBCE_STT_VC = 2,
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SMBCE_STT_DATAGRAM = 4,
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SMBCE_STT_HYBRID = 8
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} SMBCE_SERVER_TRANSPORT_TYPE, *PSMBCE_SERVER_TRANSPORT_TYPE;
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typedef struct SMBCE_SERVER_TRANSPORT {
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SMBCE_OBJECT_HEADER;
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struct TRANSPORT_DISPATCH_VECTOR *pDispatchVector;
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struct _SMBCE_TRANSPORT_ *pTransport;
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PKEVENT pRundownEvent; // used for finalization.
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ULONG MaximumSendSize; // max data size
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} SMBCE_SERVER_TRANSPORT, *PSMBCE_SERVER_TRANSPORT;
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// The SMBCE_SERVER_TRANSPORT instances are reference counted. The following
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// routines provide the referencing mechanism. Defining them as macros also
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// provides us with a easy debugging capability, i.e., it can be easily modified
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// to include a FILE/LINE number each time an instance is referenced and
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// dereferenced
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#define SmbCeReferenceServerTransport(pServerTransportPointer) \
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SmbCepReferenceServerTransport(pServerTransportPointer)
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#define SmbCeDereferenceServerTransport(pServerTransportPointer) \
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SmbCepDereferenceServerTransport(pServerTransportPointer)
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// The server transport establishment mechanism requires a callback mechanism
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// to handle the asynchronous connection establishment cases.
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typedef
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VOID
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(*PSMBCE_SERVER_TRANSPORT_CONSTRUCTION_CALLBACK)(
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PVOID pContext);
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typedef
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VOID
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(*PSMBCE_SERVER_TRANSPORT_DESTRUCTION_CALLBACK)(
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PVOID pContext);
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typedef enum _SMBCE_SERVER_TRANSPORT_CONSTRUCTION_STATE {
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SmbCeServerTransportConstructionBegin,
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SmbCeServerMailSlotTransportConstructionBegin,
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SmbCeServerMailSlotTransportConstructionEnd,
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SmbCeServerVcTransportConstructionBegin,
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SmbCeServerVcTransportConstructionEnd,
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SmbCeServerTransportConstructionEnd
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} SMBCE_SERVER_TRANSPORT_CONSTRUCTION_STATE,
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*PSMBCE_SERVER_TRANSPORT_CONSTRUCTION_STATE;
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typedef struct _SMBCE_SERVER_TRANSPORT_CONSTRUCTION_CONTEXT {
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NTSTATUS Status;
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SMBCE_SERVER_TRANSPORT_CONSTRUCTION_STATE State;
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PSMBCE_SERVER_TRANSPORT_CONSTRUCTION_CALLBACK pCompletionRoutine;
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PMRX_SRVCALL_CALLBACK_CONTEXT pCallbackContext;
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PKEVENT pCompletionEvent;
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PSMBCEDB_SERVER_ENTRY pServerEntry;
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ULONG TransportsToBeConstructed;
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PSMBCE_SERVER_TRANSPORT pMailSlotTransport;
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PSMBCE_SERVER_TRANSPORT pTransport;
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RX_WORK_QUEUE_ITEM WorkQueueItem;
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} SMBCE_SERVER_TRANSPORT_CONSTRUCTION_CONTEXT,
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*PSMBCE_SERVER_TRANSPORT_CONSTRUCTION_CONTEXT;
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// The SERVER transport dispatch vector prototypes
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typedef
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NTSTATUS
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(*PTRANSPORT_DISPATCH_SEND)(
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PSMBCE_SERVER_TRANSPORT pTransport,
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PSMBCEDB_SERVER_ENTRY pServerEntry,
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ULONG SendOptions,
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PMDL pSmbMdl,
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ULONG SendLength,
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PVOID pSendCompletionContext);
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typedef
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NTSTATUS
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(*PTRANSPORT_DISPATCH_SEND_DATAGRAM)(
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PSMBCE_SERVER_TRANSPORT pTransport,
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PSMBCEDB_SERVER_ENTRY pServerEntry,
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ULONG SendOptions,
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PMDL pSmbMdl,
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ULONG SendLength,
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PVOID pSendCompletionContext);
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typedef
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NTSTATUS
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(*PTRANSPORT_DISPATCH_TRANCEIVE)(
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PSMBCE_SERVER_TRANSPORT pTransport,
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PSMBCEDB_SERVER_ENTRY pServerEntry,
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PSMB_EXCHANGE pExchange,
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ULONG SendOptions,
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PMDL pSmbMdl,
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ULONG SendLength,
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PVOID pSendCompletionContext);
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typedef
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NTSTATUS
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(*PTRANSPORT_DISPATCH_RECEIVE)(
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PSMBCE_SERVER_TRANSPORT pTransport,
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PSMBCEDB_SERVER_ENTRY pServerEntry,
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PSMB_EXCHANGE pExchange);
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typedef
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NTSTATUS
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(*PTRANSPORT_DISPATCH_INITIALIZE_EXCHANGE)(
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PSMBCE_SERVER_TRANSPORT pTransport,
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PSMB_EXCHANGE pExchange);
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typedef
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NTSTATUS
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(*PTRANSPORT_DISPATCH_UNINITIALIZE_EXCHANGE)(
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PSMBCE_SERVER_TRANSPORT pTransport,
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PSMB_EXCHANGE pExchange);
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typedef
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VOID
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(*PTRANSPORT_DISPATCH_TEARDOWN)(
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PSMBCE_SERVER_TRANSPORT pTransport);
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typedef
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NTSTATUS
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(*PTRANSPORT_DISPATCH_INITIATE_DISCONNECT)(
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PSMBCE_SERVER_TRANSPORT pTransport);
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typedef struct TRANSPORT_DISPATCH_VECTOR {
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PTRANSPORT_DISPATCH_SEND Send;
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PTRANSPORT_DISPATCH_SEND_DATAGRAM SendDatagram;
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PTRANSPORT_DISPATCH_TRANCEIVE Tranceive;
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PTRANSPORT_DISPATCH_RECEIVE Receive;
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PRX_WORKERTHREAD_ROUTINE TimerEventHandler;
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PTRANSPORT_DISPATCH_INITIALIZE_EXCHANGE InitializeExchange;
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PTRANSPORT_DISPATCH_UNINITIALIZE_EXCHANGE UninitializeExchange;
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PTRANSPORT_DISPATCH_TEARDOWN TearDown;
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PTRANSPORT_DISPATCH_INITIATE_DISCONNECT InitiateDisconnect;
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} TRANSPORT_DISPATCH_VECTOR, *PTRANSPORT_DISPATCH_VECTOR;
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// A macro for invoking a routine through the SMBCE_SERVER_TRANSPORT
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// dispatch vector.
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#define SMBCE_TRANSPORT_DISPATCH(pServerEntry,Routine,Arguments) \
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(*((pServerEntry)->pTransport->pDispatchVector->Routine))##Arguments
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// The currently known transport type dispatch vectors and the mechanisms
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// for instanting an instance.
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extern TRANSPORT_DISPATCH_VECTOR MRxSmbVctTransportDispatch;
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extern TRANSPORT_DISPATCH_VECTOR MRxSmbMsTransportDispatch;
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extern NTSTATUS
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MsInstantiateServerTransport(
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IN OUT PSMBCE_SERVER_TRANSPORT_CONSTRUCTION_CONTEXT pContext);
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extern NTSTATUS
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VctInstantiateServerTransport(
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IN OUT PSMBCE_SERVER_TRANSPORT_CONSTRUCTION_CONTEXT pContext);
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extern VOID
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SmbCeConstructServerTransport(
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IN OUT PSMBCE_SERVER_TRANSPORT_CONSTRUCTION_CONTEXT pContext);
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// The following routines constitute the interface by which the clients of
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// the connection engine initialize/send/receive/uninitialize data to the
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// remote servers
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extern NTSTATUS
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SmbCeInitializeExchangeTransport(
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PSMB_EXCHANGE pExchange);
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extern NTSTATUS
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SmbCeUninitializeExchangeTransport(
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PSMB_EXCHANGE pExchange);
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extern NTSTATUS
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SmbCeInitiateDisconnect(
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IN OUT PSMBCEDB_SERVER_ENTRY pServerEntry);
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// The routines for constructing the transports provide the flexibility to
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// construct certain combination of transports. This is provided by the
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// SmbCepInitializeServerTransport routine and the different flavours of
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// construction routines provided
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#define SMBCE_CONSTRUCT_ALL_TRANSPORTS \
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(SMBCE_STT_MAILSLOT | SMBCE_STT_VC)
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extern NTSTATUS
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SmbCepInitializeServerTransport(
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PSMBCEDB_SERVER_ENTRY pServerEntry,
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PSMBCE_SERVER_TRANSPORT_CONSTRUCTION_CALLBACK pCallbackRoutine,
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PMRX_SRVCALL_CALLBACK_CONTEXT pCallbackContext,
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ULONG TransportsToBeConsstructed);
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#define SmbCeInitializeServerTransport(pServerEntry,pCallbackRoutine,pCallbackContext) \
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SmbCepInitializeServerTransport( \
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(pServerEntry), \
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(pCallbackRoutine), \
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(pCallbackContext), \
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SMBCE_CONSTRUCT_ALL_TRANSPORTS)
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#define SmbCeInitializeServerMailSlotTransport(pServerEntry,pCallbackRoutine,pCallbackContext) \
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SmbCepInitializeServerTransport( \
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(pServerEntry), \
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(pCallbackRoutine), \
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(pCallbackContext), \
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SMBCE_STT_MAILSLOT)
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extern NTSTATUS
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SmbCeUninitializeServerTransport(
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PSMBCEDB_SERVER_ENTRY pServerEntry,
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PSMBCE_SERVER_TRANSPORT_DESTRUCTION_CALLBACK pCallbackRoutine,
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PVOID pCallbackContext);
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extern VOID
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SmbCeCompleteUninitializeServerTransport(
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PSMBCEDB_SERVER_ENTRY pServerEntry);
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extern NTSTATUS
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SmbCepReferenceTransport(
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IN OUT PSMBCE_TRANSPORT pTransport);
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extern NTSTATUS
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SmbCepDereferenceTransport(
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IN OUT PSMBCE_TRANSPORT pTransport);
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extern PSMBCE_TRANSPORT
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SmbCeFindTransport(
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PUNICODE_STRING pTransportName);
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extern NTSTATUS
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SmbCepReferenceServerTransport(
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|
|
IN OUT PSMBCE_SERVER_TRANSPORT *pTransportPointer);
|
|||
|
|
|
|||
|
|
extern NTSTATUS
|
|||
|
|
SmbCepDereferenceServerTransport(
|
|||
|
|
IN OUT PSMBCE_SERVER_TRANSPORT *pTransportPointer);
|
|||
|
|
|
|||
|
|
extern PFILE_OBJECT
|
|||
|
|
SmbCepReferenceEndpointFileObject(
|
|||
|
|
IN PSMBCE_SERVER_TRANSPORT pTransport);
|
|||
|
|
|
|||
|
|
extern NTSTATUS
|
|||
|
|
SmbCeSend(
|
|||
|
|
PSMB_EXCHANGE pExchange,
|
|||
|
|
ULONG SendOptions,
|
|||
|
|
PMDL pSmbMdl,
|
|||
|
|
ULONG SendLength);
|
|||
|
|
|
|||
|
|
extern NTSTATUS
|
|||
|
|
SmbCeSendToServer(
|
|||
|
|
PSMBCEDB_SERVER_ENTRY pServerEntry,
|
|||
|
|
ULONG SendOptions,
|
|||
|
|
PMDL pSmbMdl,
|
|||
|
|
ULONG SendLength);
|
|||
|
|
|
|||
|
|
extern NTSTATUS
|
|||
|
|
SmbCeSendDatagram(
|
|||
|
|
PSMB_EXCHANGE pExchange,
|
|||
|
|
ULONG SendOptions,
|
|||
|
|
PMDL pSmbMdl,
|
|||
|
|
ULONG SendLength);
|
|||
|
|
|
|||
|
|
extern NTSTATUS
|
|||
|
|
SmbCeTranceive(
|
|||
|
|
PSMB_EXCHANGE pExchange,
|
|||
|
|
ULONG SendOptions,
|
|||
|
|
PMDL pRxCeDataBuffer,
|
|||
|
|
ULONG SendLength);
|
|||
|
|
|
|||
|
|
extern NTSTATUS
|
|||
|
|
SmbCeReceive(
|
|||
|
|
PSMB_EXCHANGE pExchange);
|
|||
|
|
|
|||
|
|
|
|||
|
|
//
|
|||
|
|
// Call ups from the transport to the connection engine
|
|||
|
|
//
|
|||
|
|
|
|||
|
|
extern NTSTATUS
|
|||
|
|
SmbCeReceiveInd(
|
|||
|
|
IN PSMBCEDB_SERVER_ENTRY pServerEntry,
|
|||
|
|
IN ULONG BytesIndicated,
|
|||
|
|
IN ULONG BytesAvailable,
|
|||
|
|
OUT ULONG *pBytesTaken,
|
|||
|
|
IN PVOID pTsdu, // pointer describing this TSDU, typically a lump of bytes
|
|||
|
|
OUT PMDL *pDataBufferPointer, // the buffer in which data is to be copied.
|
|||
|
|
OUT PULONG pDataBufferSize, // amount of data to copy
|
|||
|
|
IN ULONG ReceiveFlags
|
|||
|
|
);
|
|||
|
|
|
|||
|
|
extern NTSTATUS
|
|||
|
|
SmbCeDataReadyInd(
|
|||
|
|
IN PSMBCEDB_SERVER_ENTRY pServerEntry,
|
|||
|
|
IN PMDL pBuffer,
|
|||
|
|
IN ULONG DataSize,
|
|||
|
|
IN NTSTATUS DataReadyStatus
|
|||
|
|
);
|
|||
|
|
|
|||
|
|
extern NTSTATUS
|
|||
|
|
SmbCeErrorInd(
|
|||
|
|
IN PSMBCEDB_SERVER_ENTRY pServerEntry,
|
|||
|
|
IN NTSTATUS IndicatedStatus
|
|||
|
|
);
|
|||
|
|
|
|||
|
|
extern NTSTATUS
|
|||
|
|
SmbCeSendCompleteInd(
|
|||
|
|
IN PSMBCEDB_SERVER_ENTRY pServerEntry,
|
|||
|
|
IN PVOID pCompletionContext,
|
|||
|
|
IN NTSTATUS SendCompletionStatus
|
|||
|
|
);
|
|||
|
|
|
|||
|
|
extern VOID
|
|||
|
|
MRxSmbLogTransportError(
|
|||
|
|
PUNICODE_STRING pTransportName,
|
|||
|
|
PUNICODE_STRING pDomainName,
|
|||
|
|
NTSTATUS Status,
|
|||
|
|
ULONG Id);
|
|||
|
|
|
|||
|
|
|
|||
|
|
#endif // _TRANSPRT_H_
|
|||
|
|
|
|||
|
|
|