1318 lines
36 KiB
C
1318 lines
36 KiB
C
/*
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Copyright (c) 1998 Microsoft Corporation
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Module Name:
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tcptdi.c
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Abstract:
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This module contains the interfaces to the TCP/IP stack via TDI
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Author:
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Shirish Koti
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Revision History:
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22 Jan 1998 Initial Version
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--*/
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#define FILENUM FILE_TCPTDI
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#include <afp.h>
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/*** DsiOpenTdiAddress
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*
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* This routine creates a TDI address for the AFP port on the given adapter
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*
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* Parm IN: pTcpAdptr - adapter object
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*
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* Parm OUT: pRetFileHandle - file handle to the address object
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* ppRetFileObj - pointer to file object pointer
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*
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* Returns: status of operation
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*
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*/
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NTSTATUS
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DsiOpenTdiAddress(
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IN PTCPADPTR pTcpAdptr,
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OUT PHANDLE pRetFileHandle,
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OUT PFILE_OBJECT *ppRetFileObj
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)
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{
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OBJECT_ATTRIBUTES AddressAttributes;
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IO_STATUS_BLOCK IoStatusBlock;
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PFILE_FULL_EA_INFORMATION EaBuffer;
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NTSTATUS status;
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UNICODE_STRING ucDeviceName;
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PTRANSPORT_ADDRESS pTransAddressEa;
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PTRANSPORT_ADDRESS pTransAddr;
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TDI_ADDRESS_IP TdiIpAddr;
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HANDLE FileHandle;
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PFILE_OBJECT pFileObject;
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PDEVICE_OBJECT pDeviceObject;
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PEPROCESS CurrentProcess;
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BOOLEAN fAttachAttempted;
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ASSERT(KeGetCurrentIrql() != DISPATCH_LEVEL);
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ASSERT(pTcpAdptr->adp_Signature == DSI_ADAPTER_SIGNATURE);
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*pRetFileHandle = INVALID_HANDLE_VALUE;
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// copy device name into the unicode string
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ucDeviceName.MaximumLength = (wcslen(AFP_TCP_BINDNAME) + 1)*sizeof(WCHAR);
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ucDeviceName.Length = 0;
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ucDeviceName.Buffer = (PWSTR)AfpAllocZeroedNonPagedMemory(
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ucDeviceName.MaximumLength);
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if (ucDeviceName.Buffer == NULL)
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{
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DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_ERR,
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("DsiOpenTdiAddress: malloc for ucDeviceName Failed\n"));
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return(STATUS_INSUFFICIENT_RESOURCES);
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}
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status = RtlAppendUnicodeToString(&ucDeviceName, AFP_TCP_BINDNAME);
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if (!NT_SUCCESS(status))
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{
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DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_ERR,
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("DsiOpenTdiAddress: RtlAppend... failed %lx\n",status));
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AfpFreeMemory(ucDeviceName.Buffer);
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return(status);
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}
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EaBuffer = (PFILE_FULL_EA_INFORMATION)AfpAllocZeroedNonPagedMemory(
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sizeof(FILE_FULL_EA_INFORMATION) - 1 +
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TDI_TRANSPORT_ADDRESS_LENGTH + 1 +
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sizeof(TRANSPORT_ADDRESS) +
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sizeof(TDI_ADDRESS_IP));
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if (EaBuffer == NULL)
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{
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DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_ERR,
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("DsiOpenTdiAddress: malloc for Eabuffer failed!\n"));
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AfpFreeMemory(ucDeviceName.Buffer);
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return(STATUS_INSUFFICIENT_RESOURCES);
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}
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EaBuffer->NextEntryOffset = 0;
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EaBuffer->Flags = 0;
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EaBuffer->EaNameLength = TDI_TRANSPORT_ADDRESS_LENGTH;
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EaBuffer->EaValueLength = sizeof(TRANSPORT_ADDRESS) -1
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+ sizeof(TDI_ADDRESS_IP);
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// put "TransportAddress" into the name
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RtlMoveMemory(EaBuffer->EaName,
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TdiTransportAddress,
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EaBuffer->EaNameLength + 1);
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// fill in the IP address and Port number
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//
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pTransAddressEa = (TRANSPORT_ADDRESS *)&EaBuffer->EaName[EaBuffer->EaNameLength+1];
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// allocate Memory for the transport address
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//
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pTransAddr = (PTRANSPORT_ADDRESS)AfpAllocZeroedNonPagedMemory(
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sizeof(TDI_ADDRESS_IP)+sizeof(TRANSPORT_ADDRESS));
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if (pTransAddr == NULL)
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{
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DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_ERR,
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("DsiOpenTdiAddress: malloc for pTransAddr failed!\n"));
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AfpFreeMemory(ucDeviceName.Buffer);
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AfpFreeMemory(EaBuffer);
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return(STATUS_INSUFFICIENT_RESOURCES);
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}
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pTransAddr->TAAddressCount = 1;
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pTransAddr->Address[0].AddressLength = sizeof(TDI_ADDRESS_IP);
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pTransAddr->Address[0].AddressType = TDI_ADDRESS_TYPE_IP;
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TdiIpAddr.sin_port = htons(AFP_TCP_PORT); // put in network order
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TdiIpAddr.in_addr = 0; // inaddr_any
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// zero fill the last component of the IP address
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//
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RtlFillMemory((PVOID)&TdiIpAddr.sin_zero,
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sizeof(TdiIpAddr.sin_zero),
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0);
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// copy the ip address to the end of the structure
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//
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RtlMoveMemory(pTransAddr->Address[0].Address,
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(CONST PVOID)&TdiIpAddr,
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sizeof(TdiIpAddr));
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// copy the ip address to the end of the name in the EA structure
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//
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RtlMoveMemory((PVOID)pTransAddressEa,
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(CONST PVOID)pTransAddr,
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sizeof(TDI_ADDRESS_IP) + sizeof(TRANSPORT_ADDRESS)-1);
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InitializeObjectAttributes(
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&AddressAttributes,
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&ucDeviceName,
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OBJ_CASE_INSENSITIVE,
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NULL,
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NULL);
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CurrentProcess = IoGetCurrentProcess();
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AFPAttachProcess(CurrentProcess);
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fAttachAttempted = TRUE;
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status = ZwCreateFile(
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&FileHandle,
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GENERIC_READ | GENERIC_WRITE | SYNCHRONIZE,
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&AddressAttributes,
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&IoStatusBlock,
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NULL,
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FILE_ATTRIBUTE_NORMAL,
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FILE_SHARE_READ | FILE_SHARE_WRITE,
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FILE_OPEN_IF,
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0,
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(PVOID)EaBuffer,
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sizeof(FILE_FULL_EA_INFORMATION) - 1 +
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EaBuffer->EaNameLength + 1 +
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EaBuffer->EaValueLength);
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// don't need these no more..
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AfpFreeMemory((PVOID)pTransAddr);
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AfpFreeMemory((PVOID)EaBuffer);
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AfpFreeMemory(ucDeviceName.Buffer);
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if (NT_SUCCESS(status))
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{
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// if the ZwCreate passed set the status to the IoStatus
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status = IoStatusBlock.Status;
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if (!NT_SUCCESS(status))
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{
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DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_ERR,
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("DsiOpenTdiAddress: ZwCreateFile failed, iostatus=%lx\n",status));
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AFPDetachProcess(CurrentProcess);
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return(status);
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}
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// dereference the file object to keep the device ptr around to avoid
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// this dereference at run time
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//
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status = ObReferenceObjectByHandle(
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FileHandle,
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(ULONG)0,
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0,
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KernelMode,
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(PVOID *)&pFileObject,
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NULL);
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if (NT_SUCCESS(status))
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{
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AFPDetachProcess(CurrentProcess);
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fAttachAttempted = FALSE;
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pDeviceObject = IoGetRelatedDeviceObject(pFileObject);
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status = DsiSetEventHandler(
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pDeviceObject,
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pFileObject,
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TDI_EVENT_ERROR,
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(PVOID)DsiTdiErrorHandler,
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(PVOID)pTcpAdptr);
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if (NT_SUCCESS(status))
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{
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status = DsiSetEventHandler(
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pDeviceObject,
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pFileObject,
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TDI_EVENT_RECEIVE,
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(PVOID)DsiTdiReceiveHandler,
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(PVOID)pTcpAdptr);
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if (NT_SUCCESS(status))
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{
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status = DsiSetEventHandler(
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pDeviceObject,
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pFileObject,
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TDI_EVENT_DISCONNECT,
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(PVOID)DsiTdiDisconnectHandler,
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(PVOID)pTcpAdptr);
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if (NT_SUCCESS(status))
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{
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status = DsiSetEventHandler(
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pDeviceObject,
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pFileObject,
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TDI_EVENT_CONNECT,
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(PVOID)DsiTdiConnectHandler,
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(PVOID)pTcpAdptr);
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if (NT_SUCCESS(status))
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{
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// all worked well: done here
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*pRetFileHandle = FileHandle;
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*ppRetFileObj = pFileObject;
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return(status);
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}
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else
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{
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DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_ERR,
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("DsiOpenTdiAddress: Set.. DsiTdiConnectHandler failed %lx\n",
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status));
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}
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}
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else
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{
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DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_ERR,
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("DsiOpenTdiAddress: Set.. DsiTdiDisconnectHandler failed %lx\n",
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status));
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}
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}
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else
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{
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DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_ERR,
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("DsiOpenTdiAddress: Set.. DsiTdiReciveHandler failed %lx\n",
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status));
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}
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//
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// ERROR Case
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//
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ObDereferenceObject(pFileObject);
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ZwClose(FileHandle);
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return(status);
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}
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else
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{
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DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_ERR,
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("DsiOpenTdiAddress: Set.. DsiTdiErrorHandler failed %lx\n",
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status));
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}
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}
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else
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{
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DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_ERR,
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("DsiOpenTdiAddress: ObReferenceObjectByHandle failed %lx\n",status));
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ZwClose(FileHandle);
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}
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}
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else
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{
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DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_ERR,
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("DsiOpenTdiAddress: ZwCreateFile failed %lx\n",status));
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}
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if (fAttachAttempted)
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{
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AFPDetachProcess(CurrentProcess);
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}
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return(status);
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}
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/*** DsiOpenTdiConnection
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*
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* This routine creates a TDI Conection for the given connection object
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*
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* Parm IN: pTcpConn - connection object
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*
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* Returns: status of operation
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*
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*/
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NTSTATUS
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DsiOpenTdiConnection(
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IN PTCPCONN pTcpConn
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)
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{
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IO_STATUS_BLOCK IoStatusBlock;
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NTSTATUS Status;
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OBJECT_ATTRIBUTES ObjectAttributes;
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PFILE_FULL_EA_INFORMATION EaBuffer;
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UNICODE_STRING RelativeDeviceName = {0,0,NULL};
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PMDL pMdl;
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PEPROCESS CurrentProcess;
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BOOLEAN fAttachAttempted;
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ASSERT(KeGetCurrentIrql() != DISPATCH_LEVEL);
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ASSERT(VALID_TCPCONN(pTcpConn));
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ASSERT(pTcpConn->con_pTcpAdptr->adp_Signature == DSI_ADAPTER_SIGNATURE);
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InitializeObjectAttributes (
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&ObjectAttributes,
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&RelativeDeviceName,
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0,
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pTcpConn->con_pTcpAdptr->adp_FileHandle,
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NULL);
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// Allocate memory for the address info to be passed to the transport
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EaBuffer = (PFILE_FULL_EA_INFORMATION)AfpAllocZeroedNonPagedMemory (
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sizeof(FILE_FULL_EA_INFORMATION) - 1 +
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TDI_CONNECTION_CONTEXT_LENGTH + 1 +
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sizeof(CONNECTION_CONTEXT));
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if (!EaBuffer)
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{
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DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_ERR,
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("DsiOpenTdiConnection: alloc for EaBuffer failed\n"));
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return(STATUS_INSUFFICIENT_RESOURCES);
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}
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EaBuffer->NextEntryOffset = 0;
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EaBuffer->Flags = 0;
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EaBuffer->EaNameLength = TDI_CONNECTION_CONTEXT_LENGTH;
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EaBuffer->EaValueLength = sizeof (CONNECTION_CONTEXT);
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// copy ConnectionContext to EaName
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RtlMoveMemory( EaBuffer->EaName, TdiConnectionContext, EaBuffer->EaNameLength + 1 );
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// put out context into the EaBuffer
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RtlMoveMemory (
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(PVOID)&EaBuffer->EaName[EaBuffer->EaNameLength + 1],
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(CONST PVOID)&pTcpConn,
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sizeof (CONNECTION_CONTEXT));
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CurrentProcess = IoGetCurrentProcess();
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AFPAttachProcess(CurrentProcess);;
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fAttachAttempted = TRUE;
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Status = ZwCreateFile (
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&pTcpConn->con_FileHandle,
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GENERIC_READ | GENERIC_WRITE,
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&ObjectAttributes, // object attributes.
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&IoStatusBlock, // returned status information.
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NULL, // block size (unused).
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FILE_ATTRIBUTE_NORMAL, // file attributes.
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0,
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FILE_CREATE,
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0, // create options.
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(PVOID)EaBuffer, // EA buffer.
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sizeof(FILE_FULL_EA_INFORMATION) - 1 +
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TDI_CONNECTION_CONTEXT_LENGTH + 1 +
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sizeof(CONNECTION_CONTEXT));
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AfpFreeMemory((PVOID)EaBuffer);
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if (NT_SUCCESS(Status))
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{
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// if the ZwCreate passed set the status to the IoStatus
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//
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Status = IoStatusBlock.Status;
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if (NT_SUCCESS(Status))
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{
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// dereference file handle, now that we are at task time
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Status = ObReferenceObjectByHandle(
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pTcpConn->con_FileHandle,
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0L,
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NULL,
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KernelMode,
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(PVOID *)&pTcpConn->con_pFileObject,
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NULL);
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if (NT_SUCCESS(Status))
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{
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AFPDetachProcess(CurrentProcess);
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return(Status);
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}
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else
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{
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DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_ERR,
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("DsiOpenTdiConnection: ObReference.. failed %lx\n",Status));
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ZwClose(pTcpConn->con_FileHandle);
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}
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}
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else
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{
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DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_ERR,
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("DsiOpenTdiConnection: ZwCreateFile IoStatus failed %lx\n",Status));
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}
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}
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else
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{
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DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_ERR,
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("DsiOpenTdiConnection: ZwCreateFile failed %lx\n",Status));
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}
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if (fAttachAttempted)
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{
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AFPDetachProcess(CurrentProcess);
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}
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DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_ERR,
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("DsiOpenTdiConnection: taking error path, returning %lx\n",Status));
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return Status;
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}
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/*** DsiAssociateTdiConnection
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*
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* This routine associates a TDI connection with the address object for AFP port
|
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*
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* Parm IN: pTcpConn - connection object
|
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*
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* Returns: status of operation
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*
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*/
|
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NTSTATUS
|
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DsiAssociateTdiConnection(
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IN PTCPCONN pTcpConn
|
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)
|
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{
|
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NTSTATUS status;
|
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PIRP pIrp;
|
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PDEVICE_OBJECT pDeviceObject;
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|
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ASSERT(VALID_TCPCONN(pTcpConn));
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ASSERT(pTcpConn->con_pTcpAdptr->adp_Signature == DSI_ADAPTER_SIGNATURE);
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pDeviceObject = IoGetRelatedDeviceObject(pTcpConn->con_pFileObject);
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if ((pIrp = AfpAllocIrp(pDeviceObject->StackSize)) == NULL)
|
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{
|
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DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_ERR,
|
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("DsiAssociateTdiConnection: alloc for pIrp failed\n"));
|
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return(STATUS_INSUFFICIENT_RESOURCES);
|
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}
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|
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TdiBuildAssociateAddress(
|
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pIrp,
|
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pDeviceObject,
|
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pTcpConn->con_pFileObject,
|
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DsiTdiCompletionRoutine,
|
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NULL,
|
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pTcpConn->con_pTcpAdptr->adp_FileHandle);
|
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|
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status = DsiTdiSynchronousIrp(pIrp, pDeviceObject);
|
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|
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if (status != STATUS_SUCCESS)
|
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{
|
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DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_ERR,
|
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("DsiAssociateTdiConnection: ..TdiSynch.. failed %lx\n",status));
|
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}
|
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|
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AfpFreeIrp(pIrp);
|
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|
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return(status);
|
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}
|
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|
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|
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/*** DsiSetEventHandler
|
|
*
|
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* This routine sends an irp down to the tcp stack to set a specified event handler
|
|
*
|
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* Parm IN: pDeviceObject - TCP's device object
|
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* pFileObject - file object corresponding to the address object
|
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* EventType - TDI_EVENT_CONNECT, TDI_EVENT_RECEIVE etc.
|
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* EventHandler - the handler for this event
|
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* Context - our adapter object
|
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*
|
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* Returns: status of operation
|
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*
|
|
*/
|
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NTSTATUS
|
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DsiSetEventHandler(
|
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IN PDEVICE_OBJECT pDeviceObject,
|
|
IN PFILE_OBJECT pFileObject,
|
|
IN ULONG EventType,
|
|
IN PVOID EventHandler,
|
|
IN PVOID Context
|
|
)
|
|
{
|
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|
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PIRP pIrp;
|
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NTSTATUS status;
|
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|
|
|
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if ((pIrp = AfpAllocIrp(pDeviceObject->StackSize)) == NULL)
|
|
{
|
|
DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_ERR,
|
|
("DsiSetEventHandler: alloc for pIrp failed\n"));
|
|
return(STATUS_INSUFFICIENT_RESOURCES);
|
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}
|
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|
|
TdiBuildSetEventHandler(pIrp,
|
|
pDeviceObject,
|
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pFileObject,
|
|
NULL,
|
|
NULL,
|
|
EventType,
|
|
EventHandler,
|
|
Context);
|
|
|
|
status = DsiTdiSynchronousIrp(pIrp, pDeviceObject);
|
|
|
|
if (status != STATUS_SUCCESS)
|
|
{
|
|
DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_ERR,
|
|
("DsiSetEventHandler: ..TdiSynch.. failed %lx\n",status));
|
|
}
|
|
|
|
AfpFreeIrp(pIrp);
|
|
|
|
return(status);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/*** DsiTdiSynchronousIrp
|
|
*
|
|
* This routine sends an irp down to the tcp stack, and blocks until the irp
|
|
* is completed
|
|
*
|
|
* Parm IN: pIrp - the irp that needs to be sent down
|
|
* pDeviceObject - TCP's device object
|
|
*
|
|
* Returns: status of operation
|
|
*
|
|
*/
|
|
NTSTATUS
|
|
DsiTdiSynchronousIrp(
|
|
IN PIRP pIrp,
|
|
PDEVICE_OBJECT pDeviceObject
|
|
)
|
|
{
|
|
|
|
NTSTATUS status;
|
|
KEVENT Event;
|
|
|
|
|
|
KeInitializeEvent(&Event, SynchronizationEvent, FALSE);
|
|
|
|
IoSetCompletionRoutine(pIrp,
|
|
(PIO_COMPLETION_ROUTINE)DsiTdiCompletionRoutine,
|
|
(PVOID)&Event,
|
|
TRUE,
|
|
TRUE,
|
|
TRUE);
|
|
|
|
status = IoCallDriver(pDeviceObject, pIrp);
|
|
|
|
if (!NT_SUCCESS(status))
|
|
{
|
|
DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_ERR,
|
|
("DsiTdiSynchronousIrp: IoCallDriver failed %lx\n",status));
|
|
}
|
|
|
|
if (status == STATUS_PENDING)
|
|
{
|
|
status = KeWaitForSingleObject((PVOID)&Event,
|
|
Executive,
|
|
KernelMode,
|
|
FALSE,
|
|
NULL);
|
|
if (!NT_SUCCESS(status))
|
|
{
|
|
DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_ERR,
|
|
("DsiTdiSynchronousIrp: KeWaitFor... failed %lx\n",status));
|
|
return(status);
|
|
}
|
|
status = pIrp->IoStatus.Status;
|
|
}
|
|
|
|
return(status);
|
|
}
|
|
|
|
|
|
|
|
/*** DsiTdiCompletionRoutine
|
|
*
|
|
* This routine gets called when the irp sent in DsiTdiSynchronousIrp is
|
|
* completed
|
|
*
|
|
* Parm IN: pDeviceObject - TCP's device object
|
|
* pIrp - the irp that got completed
|
|
* Context - our adapter object
|
|
*
|
|
* Returns: status of operation
|
|
*
|
|
*/
|
|
NTSTATUS
|
|
DsiTdiCompletionRoutine(
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PIRP Irp,
|
|
IN PVOID Context
|
|
)
|
|
{
|
|
KeSetEvent((PKEVENT )Context, 0, FALSE);
|
|
return(STATUS_MORE_PROCESSING_REQUIRED);
|
|
}
|
|
|
|
|
|
|
|
/*** DsiTdiSend
|
|
*
|
|
* This routine is the send routine for all DSI sends out to TCP
|
|
*
|
|
* Parm IN: pTcpConn - the connection object
|
|
* pMdl - mdl containing the buffer
|
|
* DataLen - how many bytes to send
|
|
* pCompletionRoutine - whom to call when send completes
|
|
* pContext - context for the completion routine
|
|
*
|
|
* Returns: status of operation
|
|
*
|
|
*/
|
|
NTSTATUS
|
|
DsiTdiSend(
|
|
IN PTCPCONN pTcpConn,
|
|
IN PMDL pMdl,
|
|
IN DWORD DataLen,
|
|
IN PVOID pCompletionRoutine,
|
|
IN PVOID pContext
|
|
)
|
|
{
|
|
PDEVICE_OBJECT pDeviceObject;
|
|
PIRP pIrp;
|
|
NTSTATUS status;
|
|
|
|
|
|
// make sure beginning of the packet looks like the DSI header
|
|
#if DBG
|
|
PBYTE pPacket;
|
|
pPacket = MmGetSystemAddressForMdlSafe(
|
|
pMdl,
|
|
NormalPagePriority);
|
|
if (pPacket != NULL)
|
|
ASSERT(*(DWORD *)&pPacket[DSI_OFFSET_DATALEN] == ntohl(DataLen-DSI_HEADER_SIZE));
|
|
#endif
|
|
|
|
pDeviceObject = IoGetRelatedDeviceObject(pTcpConn->con_pFileObject);
|
|
|
|
if ((pIrp = AfpAllocIrp(pDeviceObject->StackSize)) == NULL)
|
|
{
|
|
DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_ERR,
|
|
("DsiTdiSend: AllocIrp failed\n"));
|
|
|
|
return(STATUS_INSUFFICIENT_RESOURCES);
|
|
}
|
|
|
|
pIrp->CancelRoutine = NULL;
|
|
|
|
TdiBuildSend(
|
|
pIrp,
|
|
pDeviceObject,
|
|
pTcpConn->con_pFileObject,
|
|
pCompletionRoutine,
|
|
pContext,
|
|
pMdl,
|
|
0,
|
|
DataLen);
|
|
|
|
status = IoCallDriver(pDeviceObject,pIrp);
|
|
|
|
if (!NT_SUCCESS(status))
|
|
{
|
|
DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_ERR,
|
|
("DsiTdiSend: IoCallDriver failed %lx\n",status));
|
|
}
|
|
|
|
return(STATUS_PENDING);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*** DsiIpAddressCameIn
|
|
*
|
|
* This routine gets called when ipaddress becomes available on an adapter
|
|
*
|
|
* Parm IN: Address - TA_ADDRESS
|
|
* Context1 -
|
|
* Context2 -
|
|
*
|
|
* Returns: none
|
|
*
|
|
*/
|
|
VOID
|
|
DsiIpAddressCameIn(
|
|
IN PTA_ADDRESS Address,
|
|
IN PUNICODE_STRING DeviceName,
|
|
IN PTDI_PNP_CONTEXT Context2
|
|
)
|
|
{
|
|
IPADDRESS IpAddress;
|
|
PUNICODE_STRING pBindDeviceName;
|
|
NTSTATUS status=STATUS_SUCCESS;
|
|
KIRQL OldIrql;
|
|
BOOLEAN fCreateAdapter=FALSE;
|
|
BOOLEAN fClosing=FALSE;
|
|
|
|
|
|
pBindDeviceName = DeviceName;
|
|
|
|
// if this is not an ipaddress, we don't care: just return
|
|
if (Address->AddressType != TDI_ADDRESS_TYPE_IP)
|
|
{
|
|
return;
|
|
}
|
|
|
|
IpAddress = ntohl(((PTDI_ADDRESS_IP)&Address->Address[0])->in_addr);
|
|
|
|
if (IpAddress == 0)
|
|
{
|
|
DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_WARN,
|
|
("AfpTdiIpAddressCameIn: ipaddress is 0 on %ws!\n",
|
|
(pBindDeviceName)->Buffer));
|
|
return;
|
|
}
|
|
|
|
DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_WARN,
|
|
("AfpTdiIpAddressCameIn: %d.%d.%d.%d on %ws\n",
|
|
(IpAddress>>24)&0xFF,(IpAddress>>16)&0xFF,(IpAddress>>8)&0xFF,
|
|
IpAddress&0xFF,(pBindDeviceName)->Buffer));
|
|
|
|
|
|
if ((AfpServerState == AFP_STATE_STOP_PENDING) ||
|
|
(AfpServerState == AFP_STATE_SHUTTINGDOWN) ||
|
|
(AfpServerState == AFP_STATE_STOPPED))
|
|
{
|
|
DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_ERR,
|
|
("AfpTdiIpAddressCameIn: server shutting down, returning\n"));
|
|
return;
|
|
}
|
|
|
|
//
|
|
// do we already have the DSI-tdi interface initialized (i.e. DsiTcpAdapter
|
|
// is non-null)? If we already saw an ipaddr come in earlier, this would be
|
|
// initialized. if not, we must initialize now
|
|
//
|
|
ACQUIRE_SPIN_LOCK(&DsiAddressLock, &OldIrql);
|
|
if (DsiTcpAdapter == NULL)
|
|
{
|
|
fCreateAdapter = TRUE;
|
|
}
|
|
RELEASE_SPIN_LOCK(&DsiAddressLock, OldIrql);
|
|
|
|
|
|
// add this ipaddress to our list
|
|
DsiAddIpaddressToList(IpAddress);
|
|
|
|
if (fCreateAdapter)
|
|
{
|
|
DsiCreateAdapter();
|
|
}
|
|
|
|
// ipaddress came in: update the status buffer
|
|
DsiScheduleWorkerEvent(DsiUpdateAfpStatus, NULL);
|
|
}
|
|
|
|
|
|
|
|
|
|
/*** DsiIpAddressWentAway
|
|
*
|
|
* This routine gets called when ipaddress goes away on an adapter
|
|
*
|
|
* Parm IN: Address - TA_ADDRESS
|
|
* Context1 -
|
|
* Context2 -
|
|
*
|
|
* Returns: none
|
|
*
|
|
*/
|
|
VOID
|
|
DsiIpAddressWentAway(
|
|
IN PTA_ADDRESS Address,
|
|
IN PUNICODE_STRING DeviceName,
|
|
IN PTDI_PNP_CONTEXT Context2
|
|
)
|
|
{
|
|
PUNICODE_STRING pBindDeviceName;
|
|
IPADDRESS IpAddress;
|
|
KIRQL OldIrql;
|
|
BOOLEAN fDestroyIt=FALSE;
|
|
BOOLEAN fIpAddrRemoved=TRUE;
|
|
BOOLEAN fMustDeref=FALSE;
|
|
|
|
|
|
pBindDeviceName = DeviceName;
|
|
|
|
if (Address->AddressType != TDI_ADDRESS_TYPE_IP)
|
|
{
|
|
DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_WARN,
|
|
("AfpTdiIpAddressWentAway: unknown AddrType %d on %ws, ignoring!\n",
|
|
Address->AddressType,(pBindDeviceName)->Buffer));
|
|
return;
|
|
}
|
|
|
|
IpAddress = ntohl(((PTDI_ADDRESS_IP)&Address->Address[0])->in_addr);
|
|
|
|
if (IpAddress == 0)
|
|
{
|
|
DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_WARN,
|
|
("AfpTdiIpAddressWentAway: ipaddress is 0 on %ws!\n",
|
|
(pBindDeviceName)->Buffer));
|
|
return;
|
|
}
|
|
|
|
DsiRemoveIpaddressFromList(IpAddress);
|
|
|
|
//
|
|
// if the global adapter exists, see if we need to destroy it because the
|
|
// last ipaddress went away
|
|
//
|
|
ACQUIRE_SPIN_LOCK(&DsiAddressLock, &OldIrql);
|
|
if (DsiTcpAdapter != NULL)
|
|
{
|
|
fDestroyIt = IsListEmpty(&DsiIpAddrList)? TRUE : FALSE;
|
|
}
|
|
|
|
RELEASE_SPIN_LOCK(&DsiAddressLock, OldIrql);
|
|
|
|
// ipaddress went away: update the status buffer
|
|
DsiScheduleWorkerEvent(DsiUpdateAfpStatus, NULL);
|
|
|
|
if (fDestroyIt)
|
|
{
|
|
DsiDestroyAdapter();
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/*** DsiTdiConnectHandler
|
|
*
|
|
* This routine
|
|
*
|
|
* Parm IN: EventContext - pTcpAdptr that we passed when we set tdi handlers
|
|
* MacIpAddrLen - length of the address of the Mac (4 bytes!)
|
|
* pMacIpAddr - ipaddr of the Mac that's attempting to connect
|
|
* DsiDataLength - length of DSI data, if any, in this connect request
|
|
* pDsiData - pointer to DSI data, if any
|
|
* OptionsLength - unused
|
|
* pOptions - unused
|
|
*
|
|
* Parm OUT: pOurConnContext - connection context, pTcpConn for this connection
|
|
* ppOurAcceptIrp - irp, if accpeting this connection
|
|
*
|
|
* Returns: status of operation
|
|
*
|
|
*/
|
|
NTSTATUS
|
|
DsiTdiConnectHandler(
|
|
IN PVOID EventContext,
|
|
IN int MacIpAddrLen,
|
|
IN PVOID pSrcAddress,
|
|
IN int DsiDataLength,
|
|
IN PVOID pDsiData,
|
|
IN int OptionsLength,
|
|
IN PVOID pOptions,
|
|
OUT CONNECTION_CONTEXT *pOurConnContext,
|
|
OUT PIRP *ppOurAcceptIrp
|
|
)
|
|
{
|
|
NTSTATUS status=STATUS_SUCCESS;
|
|
PTCPADPTR pTcpAdptr;
|
|
PTCPCONN pTcpConn;
|
|
PDEVICE_OBJECT pDeviceObject;
|
|
IPADDRESS MacIpAddr;
|
|
PTRANSPORT_ADDRESS pXportAddr;
|
|
PIRP pIrp;
|
|
|
|
|
|
pTcpAdptr = (PTCPADPTR)EventContext;
|
|
|
|
*pOurConnContext = NULL;
|
|
*ppOurAcceptIrp = NULL;
|
|
|
|
ASSERT(pTcpAdptr->adp_Signature == DSI_ADAPTER_SIGNATURE);
|
|
|
|
pDeviceObject = IoGetRelatedDeviceObject(pTcpAdptr->adp_pFileObject);
|
|
|
|
if ((pIrp = AfpAllocIrp(pDeviceObject->StackSize)) == NULL)
|
|
{
|
|
DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_ERR,
|
|
("DsiTdiConnectHandler: AllocIrp failed\n"));
|
|
|
|
return(STATUS_DATA_NOT_ACCEPTED);
|
|
}
|
|
|
|
pXportAddr = (PTRANSPORT_ADDRESS)pSrcAddress;
|
|
MacIpAddr = ((PTDI_ADDRESS_IP)&pXportAddr->Address[0].Address[0])->in_addr;
|
|
|
|
//
|
|
// see if DSI wants to accept this connection
|
|
//
|
|
status = DsiAcceptConnection(pTcpAdptr, ntohl(MacIpAddr), &pTcpConn);
|
|
|
|
if (!NT_SUCCESS(status))
|
|
{
|
|
DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_ERR,
|
|
("DsiTdiConnectHandler: DsiAccep.. failed %lx\n",status));
|
|
|
|
AfpFreeIrp(pIrp);
|
|
return(status);
|
|
}
|
|
|
|
TdiBuildAccept(pIrp,
|
|
IoGetRelatedDeviceObject(pTcpConn->con_pFileObject),
|
|
pTcpConn->con_pFileObject,
|
|
DsiAcceptConnectionCompletion,
|
|
pTcpConn,
|
|
NULL,
|
|
NULL);
|
|
|
|
pIrp->MdlAddress = NULL;
|
|
|
|
*pOurConnContext = (CONNECTION_CONTEXT)pTcpConn;
|
|
*ppOurAcceptIrp = pIrp;
|
|
|
|
// do what IoSubSystem would have done, if we had called IoCallDriver
|
|
IoSetNextIrpStackLocation(pIrp);
|
|
|
|
return(STATUS_MORE_PROCESSING_REQUIRED);
|
|
|
|
}
|
|
|
|
/*** DsiTdiReceiveHandler
|
|
*
|
|
* This routine
|
|
*
|
|
* Parm IN: EventContext - pTcpAdptr that we passed when we set tdi handlers
|
|
* ConnectionContext - our context, pTcpConn for this connection
|
|
* RcvFlags - more info about how the data was received
|
|
* BytesIndicated - number of bytes tcp is indicating
|
|
* BytesAvailable - number of bytes that came in (tcp has with it)
|
|
* pDsiData - the data that came in
|
|
*
|
|
* Parm OUT: pBytesAccepted - how many bytes did we accept
|
|
* ppIrp - irp, if for tcp to copy data in (if needed)
|
|
*
|
|
* Returns: status of operation
|
|
*
|
|
*/
|
|
NTSTATUS
|
|
DsiTdiReceiveHandler(
|
|
IN PVOID EventContext,
|
|
IN PVOID ConnectionContext,
|
|
IN USHORT RcvFlags,
|
|
IN ULONG BytesIndicated,
|
|
IN ULONG BytesAvailable,
|
|
OUT PULONG pBytesAccepted,
|
|
IN PVOID pDsiData,
|
|
OUT PIRP *ppIrp
|
|
)
|
|
{
|
|
|
|
NTSTATUS status;
|
|
PTCPCONN pTcpConn;
|
|
PBYTE pBuffer;
|
|
PIRP pIrp;
|
|
|
|
|
|
pTcpConn = (PTCPCONN)ConnectionContext;
|
|
|
|
*ppIrp = NULL;
|
|
*pBytesAccepted = 0;
|
|
|
|
ASSERT(VALID_TCPCONN(pTcpConn));
|
|
|
|
status = DsiProcessData(pTcpConn,
|
|
BytesIndicated,
|
|
BytesAvailable,
|
|
(PBYTE)pDsiData,
|
|
pBytesAccepted,
|
|
ppIrp);
|
|
|
|
return(status);
|
|
}
|
|
|
|
/*** DsiTdiDisconnectHandler
|
|
*
|
|
* This routine
|
|
*
|
|
* Parm IN: EventContext - pTcpAdptr that we passed when we set tdi handlers
|
|
* ConnectionContext - our context, pTcpConn for this connection
|
|
* DisconnectDataLength -
|
|
* pDisconnectData -
|
|
*
|
|
*
|
|
*
|
|
* Returns: status of operation
|
|
*
|
|
*/
|
|
NTSTATUS
|
|
DsiTdiDisconnectHandler(
|
|
IN PVOID EventContext,
|
|
IN PVOID ConnectionContext,
|
|
IN ULONG DisconnectDataLength,
|
|
IN PVOID pDisconnectData,
|
|
IN ULONG DisconnectInformationLength,
|
|
IN PVOID pDisconnectInformation,
|
|
IN ULONG DisconnectIndicators
|
|
)
|
|
{
|
|
|
|
PTCPCONN pTcpConn;
|
|
KIRQL OldIrql;
|
|
BOOLEAN fMustAbort=FALSE;
|
|
BOOLEAN fWeInitiatedAbort=FALSE;
|
|
|
|
|
|
pTcpConn = (PTCPCONN)ConnectionContext;
|
|
|
|
ASSERT(VALID_TCPCONN(pTcpConn));
|
|
|
|
//
|
|
// if the connection went away non-gracefully (i.e. TCP got a reset), and
|
|
// if we have not already given an irp down to tcp to disconnect, then
|
|
// complete the disconnect here
|
|
//
|
|
if ((UCHAR)DisconnectIndicators == TDI_DISCONNECT_ABORT)
|
|
{
|
|
ACQUIRE_SPIN_LOCK(&pTcpConn->con_SpinLock, &OldIrql);
|
|
|
|
fWeInitiatedAbort =
|
|
(pTcpConn->con_State & TCPCONN_STATE_ABORTIVE_DISCONNECT)? TRUE : FALSE;
|
|
|
|
DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_ERR,
|
|
("ABORT from %s on %lx\n",fWeInitiatedAbort?"Local":"Remote",pTcpConn));
|
|
|
|
if (pTcpConn->con_State & TCPCONN_STATE_NOTIFY_TCP)
|
|
{
|
|
fMustAbort = TRUE;
|
|
pTcpConn->con_State &= ~TCPCONN_STATE_NOTIFY_TCP;
|
|
pTcpConn->con_State |= TCPCONN_STATE_CLOSING;
|
|
}
|
|
RELEASE_SPIN_LOCK(&pTcpConn->con_SpinLock, OldIrql);
|
|
|
|
if (fMustAbort)
|
|
{
|
|
DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_WARN,
|
|
("DsiTdiDisconnectHandler: abortive disconnect on %lx\n",pTcpConn));
|
|
|
|
DsiAbortConnection(pTcpConn);
|
|
|
|
DsiTcpDisconnectCompletion(NULL, NULL, pTcpConn);
|
|
|
|
// TCP is telling us it got cient's RST: remove the TCP CLIENT-FIN refcount
|
|
DsiDereferenceConnection(pTcpConn);
|
|
|
|
DBGREFCOUNT(("DsiTdiDisconnectHandler: CLIENT-FIN dec %lx (%d %d,%d)\n",
|
|
pTcpConn,pTcpConn->con_RefCount,pTcpConn->con_State,pTcpConn->con_RcvState));
|
|
}
|
|
|
|
//
|
|
// if we had initiated a graceful close, remove that TCP CLIENT-FIN refcount:
|
|
// (if we had initiated an abortive close, we already took care of it)
|
|
//
|
|
else if (!fWeInitiatedAbort)
|
|
{
|
|
DsiDereferenceConnection(pTcpConn);
|
|
}
|
|
else
|
|
{
|
|
DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_ERR,
|
|
("DsiTdiDisconnectHandler: abortive disc,race condition on %lx\n",
|
|
pTcpConn));
|
|
}
|
|
}
|
|
else if ((UCHAR)DisconnectIndicators == TDI_DISCONNECT_RELEASE)
|
|
{
|
|
//
|
|
// since we got a graceful disconnect from the remote client, we had
|
|
// better received the DSI Close already. If not, the client is on
|
|
// drugs, so just reset the connection!
|
|
//
|
|
ACQUIRE_SPIN_LOCK(&pTcpConn->con_SpinLock, &OldIrql);
|
|
|
|
if ((pTcpConn->con_State & TCPCONN_STATE_AFP_ATTACHED) &&
|
|
(!(pTcpConn->con_State & TCPCONN_STATE_RCVD_REMOTE_CLOSE)))
|
|
{
|
|
fMustAbort = TRUE;
|
|
}
|
|
RELEASE_SPIN_LOCK(&pTcpConn->con_SpinLock, OldIrql);
|
|
|
|
if (fMustAbort)
|
|
{
|
|
DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_WARN,
|
|
("DsiTdiDisconnectHandler: ungraceful FIN, killing %lx\n",pTcpConn));
|
|
|
|
DsiAbortConnection(pTcpConn);
|
|
}
|
|
else
|
|
{
|
|
//
|
|
// by this time, we shouldn't have to do this, but just in case we
|
|
// have an ill-behaved client (calling this routine many times is ok)
|
|
//
|
|
DsiTerminateConnection(pTcpConn);
|
|
|
|
// TCP is telling us it got cient's FIN: remove the TCP CLIENT-FIN refcount
|
|
DsiDereferenceConnection(pTcpConn);
|
|
|
|
DBGREFCOUNT(("DsiTdiDisconnectHandler: CLIENT-FIN dec %lx (%d %d,%d)\n",
|
|
pTcpConn,pTcpConn->con_RefCount,pTcpConn->con_State,pTcpConn->con_RcvState));
|
|
}
|
|
}
|
|
else
|
|
{
|
|
DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_ERR,
|
|
("DsiTdiDisconnectHandler: flag=%d, ignored on %lx\n",
|
|
DisconnectIndicators,pTcpConn));
|
|
ASSERT(0);
|
|
}
|
|
|
|
return(STATUS_SUCCESS);
|
|
}
|
|
|
|
|
|
/*** DsiTdiErrorHandler
|
|
*
|
|
* This routine
|
|
*
|
|
* Parm IN: EventContext - pTcpAdptr that we passed when we set tdi handlers
|
|
* status - what went wrong?
|
|
*
|
|
* Returns: status of operation
|
|
*
|
|
*/
|
|
NTSTATUS
|
|
DsiTdiErrorHandler(
|
|
IN PVOID EventContext,
|
|
IN NTSTATUS Status
|
|
)
|
|
{
|
|
|
|
DBGPRINT(DBG_COMP_STACKIF, DBG_LEVEL_ERR,
|
|
("DsiTdiErrorHandler: entered, with Status=%lx\n",Status));
|
|
|
|
ASSERT(0);
|
|
|
|
return(STATUS_DATA_NOT_ACCEPTED);
|
|
}
|
|
|
|
|
|
/*** DsiCloseTdiAddress
|
|
*
|
|
* This routine closes the address object with TCP
|
|
*
|
|
* Parm IN: pTcpAdptr - our adapter object
|
|
*
|
|
* Returns: status of operation
|
|
*
|
|
*/
|
|
NTSTATUS
|
|
DsiCloseTdiAddress(
|
|
IN PTCPADPTR pTcpAdptr
|
|
)
|
|
{
|
|
|
|
PEPROCESS CurrentProcess;
|
|
|
|
|
|
ASSERT(KeGetCurrentIrql() != DISPATCH_LEVEL);
|
|
|
|
ASSERT(pTcpAdptr->adp_Signature == DSI_ADAPTER_SIGNATURE);
|
|
|
|
CurrentProcess = IoGetCurrentProcess();
|
|
AFPAttachProcess(CurrentProcess);;
|
|
|
|
if (pTcpAdptr->adp_pFileObject)
|
|
{
|
|
ObDereferenceObject((PVOID *)pTcpAdptr->adp_pFileObject);
|
|
pTcpAdptr->adp_pFileObject = NULL;
|
|
}
|
|
|
|
if (pTcpAdptr->adp_FileHandle != INVALID_HANDLE_VALUE)
|
|
{
|
|
ZwClose(pTcpAdptr->adp_FileHandle);
|
|
pTcpAdptr->adp_FileHandle = INVALID_HANDLE_VALUE;
|
|
}
|
|
|
|
AFPDetachProcess(CurrentProcess);
|
|
|
|
return(STATUS_SUCCESS);
|
|
}
|
|
|
|
|
|
|
|
|
|
/*** DsiCloseTdiConnection
|
|
*
|
|
* This routine closes the connection object with TCP
|
|
*
|
|
* Parm IN: pTcpConn - our connection context
|
|
*
|
|
* Returns: status of operation
|
|
*
|
|
*/
|
|
NTSTATUS
|
|
DsiCloseTdiConnection(
|
|
IN PTCPCONN pTcpConn
|
|
)
|
|
{
|
|
|
|
PEPROCESS CurrentProcess;
|
|
|
|
|
|
ASSERT(KeGetCurrentIrql() != DISPATCH_LEVEL);
|
|
|
|
ASSERT(pTcpConn->con_Signature == DSI_CONN_SIGNATURE);
|
|
|
|
ASSERT(pTcpConn->con_pTcpAdptr->adp_Signature == DSI_ADAPTER_SIGNATURE);
|
|
|
|
CurrentProcess = IoGetCurrentProcess();
|
|
AFPAttachProcess(CurrentProcess);;
|
|
|
|
if (pTcpConn->con_pFileObject)
|
|
{
|
|
ObDereferenceObject((PVOID *)pTcpConn->con_pFileObject);
|
|
pTcpConn->con_pFileObject = NULL;
|
|
}
|
|
|
|
if (pTcpConn->con_FileHandle != INVALID_HANDLE_VALUE)
|
|
{
|
|
ZwClose(pTcpConn->con_FileHandle);
|
|
pTcpConn->con_FileHandle = INVALID_HANDLE_VALUE;
|
|
}
|
|
|
|
AFPDetachProcess(CurrentProcess);
|
|
|
|
return(STATUS_SUCCESS);
|
|
}
|
|
|