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Diffstat (limited to '')
| -rw-r--r-- | private/ntos/tdi/tcpip/tcp/ntautodl.c | 258 |
1 files changed, 258 insertions, 0 deletions
diff --git a/private/ntos/tdi/tcpip/tcp/ntautodl.c b/private/ntos/tdi/tcpip/tcp/ntautodl.c new file mode 100644 index 000000000..0c244aff7 --- /dev/null +++ b/private/ntos/tdi/tcpip/tcp/ntautodl.c @@ -0,0 +1,258 @@ +/*++ + +Copyright (c) 1995 Microsoft Corporation + +Module Name: + + ntautodl.c + +Abstract: + + NT specific routines for interfacing with the + RAS AutoDial driver (acd.sys). + +Author: + + Anthony Discolo (adiscolo) Aug 30, 1995 + +Revision History: + + Who When What + -------- -------- ---------------------------------------------- + adiscolo 08-30-95 created + +Notes: + +--*/ + +#include <oscfg.h> +#include <ntrtl.h> +#include <ntddip.h> +#include <ndis.h> +#include <cxport.h> +#include <tdikrnl.h> +#include <tdint.h> +#include <tdistat.h> +#include <tdiinfo.h> +#include <ip.h> +#include <acd.h> +#include <acdapi.h> + +#include "queue.h" +#include "addr.h" +#include "tcp.h" +#include "tcb.h" +#include "tcpconn.h" +#include "udp.h" +#include "tlcommon.h" +#include <ntddtcp.h> + +// +// Macro for calculating +// an IP address component. +// +#define UC(pIpAddr, i) ((ULONG)(((PCHAR)(pIpAddr))[i]) & 0xff) + +// +// Global variables +// +BOOLEAN fAcdLoadedG; +ACD_DRIVER AcdDriverG; +ULONG ulDriverIdG = 'Tcp '; + + + +VOID +TCPNoteNewConnection( + IN TCB *pTCB, + IN CTELockHandle Handle + ) +{ + ACD_ADDR addr; + ACD_ADAPTER adapter; + + // + // If there is a NULL source + // or destination IP address, then return. + // + if (!pTCB->tcb_saddr || !pTCB->tcb_daddr) { + CTEFreeLock(&pTCB->tcb_lock, Handle); + return; + } + // + // We also know we aren't interested in + // any connections on the 127 network. + // + if (UC(&pTCB->tcb_daddr, 0) == 127) { + CTEFreeLock(&pTCB->tcb_lock, Handle); + return; + } + // + // Get the address of the connection. + // + addr.fType = ACD_ADDR_IP; + addr.ulIpaddr = pTCB->tcb_daddr; + adapter.fType = ACD_ADAPTER_IP; + adapter.ulIpaddr = pTCB->tcb_saddr; + // + // Release the TCB lock handle before + // calling out of this driver. + // + CTEFreeLock(&pTCB->tcb_lock, Handle); + // + // Inform the automatic connection driver + // of the new connection. + // + (*AcdDriverG.lpfnNewConnection)(&addr, &adapter); +} // TCPNoteNewConnection + + + +VOID +TCPAcdBind() +{ + NTSTATUS status; + UNICODE_STRING nameString; + IO_STATUS_BLOCK ioStatusBlock; + PIRP pIrp; + PFILE_OBJECT pAcdFileObject; + PDEVICE_OBJECT pAcdDeviceObject; + PACD_DRIVER pDriver = &AcdDriverG; + + // + // Initialize the name of the automatic + // connection device. + // + RtlInitUnicodeString(&nameString, ACD_DEVICE_NAME); + // + // Get the file and device objects for the + // device. + // + status = IoGetDeviceObjectPointer( + &nameString, + SYNCHRONIZE|GENERIC_READ|GENERIC_WRITE, + &pAcdFileObject, + &pAcdDeviceObject); + if (status != STATUS_SUCCESS) + return; + // + // Reference the device object. + // + ObReferenceObject(pAcdDeviceObject); + // + // Remove the reference IoGetDeviceObjectPointer() + // put on the file object. + // + ObDereferenceObject(pAcdFileObject); + // + // Initialize our part of the ACD_DRIVER + // structure. + // + KeInitializeSpinLock(&AcdDriverG.SpinLock); + AcdDriverG.ulDriverId = ulDriverIdG; + AcdDriverG.fEnabled = FALSE; + // + // Build a request to get the automatic + // connection driver entry points. + // + pIrp = IoBuildDeviceIoControlRequest( + IOCTL_INTERNAL_ACD_BIND, + pAcdDeviceObject, + (PVOID)&pDriver, + sizeof (pDriver), + NULL, + 0, + TRUE, + NULL, + &ioStatusBlock); + if (pIrp == NULL) { + ObDereferenceObject(pAcdDeviceObject); + return; + } + // + // Submit the request to the + // automatic connection driver. + // + status = IoCallDriver(pAcdDeviceObject, pIrp); + fAcdLoadedG = (status == STATUS_SUCCESS); + // + // Close the device. + // + ObDereferenceObject(pAcdDeviceObject); +} // TCPAcdBind + + + +VOID +TCPAcdUnbind() +{ + NTSTATUS status; + UNICODE_STRING nameString; + IO_STATUS_BLOCK ioStatusBlock; + PIRP pIrp; + PFILE_OBJECT pAcdFileObject; + PDEVICE_OBJECT pAcdDeviceObject; + PACD_DRIVER pDriver = &AcdDriverG; + + // + // Don't bother to unbind if we + // didn't successfully bind in the + // first place. + // + if (!fAcdLoadedG) + return; + // + // Initialize the name of the automatic + // connection device. + // + RtlInitUnicodeString(&nameString, ACD_DEVICE_NAME); + // + // Get the file and device objects for the + // device. + // + status = IoGetDeviceObjectPointer( + &nameString, + SYNCHRONIZE|GENERIC_READ|GENERIC_WRITE, + &pAcdFileObject, + &pAcdDeviceObject); + if (status != STATUS_SUCCESS) + return; + // + // Reference the device object. + // + ObReferenceObject(pAcdDeviceObject); + // + // Remove the reference IoGetDeviceObjectPointer() + // put on the file object. + // + ObDereferenceObject(pAcdFileObject); + // + // Build a request to unbind from + // the automatic connection driver. + // + pIrp = IoBuildDeviceIoControlRequest( + IOCTL_INTERNAL_ACD_UNBIND, + pAcdDeviceObject, + (PVOID)&pDriver, + sizeof (pDriver), + NULL, + 0, + TRUE, + NULL, + &ioStatusBlock); + if (pIrp == NULL) { + ObDereferenceObject(pAcdDeviceObject); + return; + } + // + // Submit the request to the + // automatic connection driver. + // + status = IoCallDriver(pAcdDeviceObject, pIrp); + // + // Close the device. + // + ObDereferenceObject(pAcdDeviceObject); +} // TCPAcdUnbind + + |