Nothing should now need this interface so the code can be removed.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
+++ /dev/null
-/* Copyright (c) Citrix Systems Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms,
- * with or without modification, are permitted provided
- * that the following conditions are met:
- *
- * * Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the
- * following disclaimer.
- * * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the
- * following disclaimer in the documentation and/or other
- * materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
- * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-/*! \file pvdevice_interface.h
- \brief XENFILT PVDEVICE Interface
-
- This interface provides primitives to determine whether a pvdevice
- device is active (and claim the active device id if not)
-*/
-
-#ifndef _XENFILT_PVDEVICE_INTERFACE_H
-#define _XENFILT_PVDEVICE_INTERFACE_H
-
-#ifndef _WINDLL
-
-/*! \typedef XENFILT_PVDEVICE_ACQUIRE
- \brief Acquire a reference to the PVDEVICE interface
-
- \param Interface The interface header
-*/
-typedef NTSTATUS
-(*XENFILT_PVDEVICE_ACQUIRE)(
- IN PINTERFACE Interface
- );
-
-/*! \typedef XENFILT_PVDEVICE_RELEASE
- \brief Release a reference to the PVDEVICE interface
-
- \param Interface The interface header
-*/
-typedef VOID
-(*XENFILT_PVDEVICE_RELEASE)(
- IN PINTERFACE Interface
- );
-
-/*! \typedef XENFILT_PVDEVICE_GET_ACTIVE
- \brief Get the active device instance
-
- \param Interface The interface header
- \param DeviceID A buffer of length MAXNAMELEN to receive the device id
- \param InstanceID A buffer of length MAXNAMELEN to receive the instance id
-*/
-typedef NTSTATUS
-(*XENFILT_PVDEVICE_GET_ACTIVE)(
- IN PVOID Context,
- OUT PCHAR DeviceID,
- OUT PCHAR InstanceID
- );
-
-/*! \typedef XENFILT_PVDEVICE_SET_ACTIVE
- \brief Set the active device instance
-
- \param Interface The interface header
- \param DeviceID Buffer containing the device id
- \param InstanceID Buffer containing the instance id
-*/
-typedef NTSTATUS
-(*XENFILT_PVDEVICE_SET_ACTIVE)(
- IN PVOID Context,
- IN PCHAR DeviceID,
- IN PCHAR InstanceID
- );
-
-/*! \typedef XENFILT_PVDEVICE_CLEAR_ACTIVE
- \brief Clear the active device instance
-
- \param Interface The interface header
-*/
-typedef NTSTATUS
-(*XENFILT_PVDEVICE_CLEAR_ACTIVE)(
- IN PVOID Context
- );
-
-// {7d09b250-898f-4fea-b7fa-e0490e46f95f}
-DEFINE_GUID(GUID_XENFILT_PVDEVICE_INTERFACE,
-0x7d09b250, 0x898f, 0x4fea, 0xb7, 0xfa, 0xe0, 0x49, 0x0e, 0x46, 0xf9, 0x5f);
-
-/*! \struct _XENFILT_PVDEVICE_INTERFACE_V1
- \brief PVDEVICE interface version 1
- \ingroup interfaces
-*/
-struct _XENFILT_PVDEVICE_INTERFACE_V1 {
- INTERFACE Interface;
- XENFILT_PVDEVICE_ACQUIRE PvdeviceAcquire;
- XENFILT_PVDEVICE_RELEASE PvdeviceRelease;
- XENFILT_PVDEVICE_GET_ACTIVE PvdeviceGetActive;
- XENFILT_PVDEVICE_SET_ACTIVE PvdeviceSetActive;
- XENFILT_PVDEVICE_CLEAR_ACTIVE PvdeviceClearActive;
-};
-
-typedef struct _XENFILT_PVDEVICE_INTERFACE_V1 XENFILT_PVDEVICE_INTERFACE, *PXENFILT_PVDEVICE_INTERFACE;
-
-/*! \def XENFILT_PVDEVICE
- \brief Macro at assist in method invocation
-*/
-#define XENFILT_PVDEVICE(_Method, _Interface, ...) \
- (_Interface)->Pvdevice ## _Method((PINTERFACE)(_Interface), __VA_ARGS__)
-
-#endif // _WINDLL
-
-#define XENFILT_PVDEVICE_INTERFACE_VERSION_MIN 1
-#define XENFILT_PVDEVICE_INTERFACE_VERSION_MAX 1
-
-#endif // _XENFILT_PVDEVICE_INTERFACE_H
#include <stdlib.h>
#include <xen.h>
-#include <pvdevice_interface.h>
#include <version.h>
#include "names.h"
#include "pdo.h"
#include "driver.h"
#include "emulated.h"
-#include "pvdevice.h"
#include "mutex.h"
#include "dbg_print.h"
#include "assert.h"
PXENFILT_EMULATED_CONTEXT EmulatedContext;
XENFILT_EMULATED_INTERFACE EmulatedInterface;
-
- PXENFILT_PVDEVICE_CONTEXT PvdeviceContext;
- XENFILT_PVDEVICE_INTERFACE PvdeviceInterface;
} XENFILT_DRIVER, *PXENFILT_DRIVER;
static XENFILT_DRIVER Driver;
return __DriverGetEmulatedContext();
}
-static FORCEINLINE VOID
-__DriverSetPvdeviceContext(
- IN PXENFILT_PVDEVICE_CONTEXT Context
- )
-{
- Driver.PvdeviceContext = Context;
-}
-
-static FORCEINLINE PXENFILT_PVDEVICE_CONTEXT
-__DriverGetPvdeviceContext(
- VOID
- )
-{
- return Driver.PvdeviceContext;
-}
-
-PXENFILT_PVDEVICE_CONTEXT
-DriverGetPvdeviceContext(
- VOID
- )
-{
- return __DriverGetPvdeviceContext();
-}
-
static FORCEINLINE VOID
__DriverAcquireMutex(
VOID
--Driver.References;
}
+static FORCEINLINE NTSTATUS
+__DriverGetActive(
+ OUT PCHAR DeviceID,
+ OUT PCHAR InstanceID
+ )
+{
+ HANDLE ParametersKey;
+ PANSI_STRING Ansi;
+ NTSTATUS status;
+
+ Trace("====>\n");
+
+ ASSERT3U(KeGetCurrentIrql(), ==, PASSIVE_LEVEL);
+
+ ParametersKey = __DriverGetParametersKey();
+
+ status = RegistryQuerySzValue(ParametersKey,
+ "ActiveDeviceID",
+ NULL,
+ &Ansi);
+ if (!NT_SUCCESS(status))
+ goto fail1;
+
+ status = RtlStringCbPrintfA(DeviceID,
+ MAX_DEVICE_ID_LEN,
+ "%Z",
+ &Ansi[0]);
+ ASSERT(NT_SUCCESS(status));
+
+ RegistryFreeSzValue(Ansi);
+
+ status = RegistryQuerySzValue(ParametersKey,
+ "ActiveInstanceID",
+ NULL,
+ &Ansi);
+ if (!NT_SUCCESS(status))
+ goto fail2;
+
+ status = RtlStringCbPrintfA(InstanceID,
+ MAX_DEVICE_ID_LEN,
+ "%Z",
+ &Ansi[0]);
+ ASSERT(NT_SUCCESS(status));
+
+ RegistryFreeSzValue(Ansi);
+
+ Trace("<====\n");
+
+ return STATUS_SUCCESS;
+
+fail2:
+ Error("fail2\n");
+
+fail1:
+ Error("fail1 (%08x)\n", status);
+
+ return status;
+}
+
+NTSTATUS
+DriverGetActive(
+ OUT PCHAR DeviceID,
+ OUT PCHAR InstanceID
+ )
+{
+ return __DriverGetActive(DeviceID, InstanceID);
+}
+
static BOOLEAN
DriverIsActivePresent(
VOID
BOOLEAN Present;
NTSTATUS status;
- status = XENFILT_PVDEVICE(Acquire, &Driver.PvdeviceInterface);
- if (!NT_SUCCESS(status))
- goto fail1;
-
status = XENFILT_EMULATED(Acquire, &Driver.EmulatedInterface);
if (!NT_SUCCESS(status))
- goto fail2;
+ goto fail1;
Present = FALSE;
- status = XENFILT_PVDEVICE(GetActive,
- &Driver.PvdeviceInterface,
- ActiveDeviceID,
- ActiveInstanceID);
+ status = __DriverGetActive(ActiveDeviceID,
+ ActiveInstanceID);
if (!NT_SUCCESS(status))
goto done;
done:
XENFILT_EMULATED(Release, &Driver.EmulatedInterface);
- XENFILT_PVDEVICE(Release, &Driver.PvdeviceInterface);
return Present;
-fail2:
- Error("fail2\n");
-
fail1:
Error("fail1 (%08x)\n", status);
RtlZeroMemory(&Driver.List, sizeof (LIST_ENTRY));
RtlZeroMemory(&Driver.Mutex, sizeof (MUTEX));
- RtlZeroMemory(&Driver.PvdeviceInterface,
- sizeof (XENFILT_PVDEVICE_INTERFACE));
-
RtlZeroMemory(&Driver.EmulatedInterface,
sizeof (XENFILT_EMULATED_INTERFACE));
- PvdeviceTeardown(Driver.PvdeviceContext);
- Driver.PvdeviceContext = NULL;
-
EmulatedTeardown(Driver.EmulatedContext);
Driver.EmulatedContext = NULL;
HANDLE ServiceKey;
HANDLE ParametersKey;
PXENFILT_EMULATED_CONTEXT EmulatedContext;
- PXENFILT_PVDEVICE_CONTEXT PvdeviceContext;
ULONG Index;
NTSTATUS status;
__DriverSetEmulatedContext(EmulatedContext);
- status = PvdeviceInitialize(&PvdeviceContext);
- if (!NT_SUCCESS(status))
- goto fail5;
-
- __DriverSetPvdeviceContext(PvdeviceContext);
-
status = EmulatedGetInterface(__DriverGetEmulatedContext(),
XENFILT_EMULATED_INTERFACE_VERSION_MAX,
(PINTERFACE)&Driver.EmulatedInterface,
sizeof (Driver.EmulatedInterface));
ASSERT(NT_SUCCESS(status));
- status = PvdeviceGetInterface(__DriverGetPvdeviceContext(),
- XENFILT_PVDEVICE_INTERFACE_VERSION_MAX,
- (PINTERFACE)&Driver.PvdeviceInterface,
- sizeof (Driver.PvdeviceInterface));
- ASSERT(NT_SUCCESS(status));
-
RegistryCloseKey(ServiceKey);
DriverObject->DriverExtension->AddDevice = DriverAddDevice;
Trace("<====\n");
return STATUS_SUCCESS;
-fail5:
- Error("fail5\n");
-
- EmulatedTeardown(Driver.EmulatedContext);
- Driver.EmulatedContext = NULL;
-
fail4:
Error("fail4\n");
VOID
);
+extern NTSTATUS
+DriverGetActive(
+ OUT PCHAR DeviceID,
+ OUT PCHAR InstanceID
+ );
+
typedef enum _XENFILT_FILTER_STATE {
XENFILT_FILTER_ENABLED = 0,
XENFILT_FILTER_PENDING,
VOID
);
-#include "pvdevice.h"
-
-PXENFILT_PVDEVICE_CONTEXT
-DriverGetPvdeviceContext(
- VOID
- );
-
typedef struct _XENFILT_FDO XENFILT_FDO, *PXENFILT_FDO;
typedef struct _XENFILT_PDO XENFILT_PDO, *PXENFILT_PDO;
#include <stdlib.h>
#include "emulated.h"
-#include "pvdevice.h"
#include "names.h"
#include "fdo.h"
#include "pdo.h"
XENFILT_EMULATED_OBJECT_TYPE Type;
PXENFILT_EMULATED_OBJECT EmulatedObject;
-
- XENFILT_PVDEVICE_INTERFACE PvdeviceInterface;
};
static FORCEINLINE PVOID
return Pdo->Fdo;
}
-static NTSTATUS
+static VOID
PdoSetDeviceInstance(
IN PXENFILT_PDO Pdo,
IN PCHAR DeviceID,
CHAR ActiveInstanceID[MAX_DEVICE_ID_LEN];
NTSTATUS status;
- status = XENFILT_PVDEVICE(Acquire, &Pdo->PvdeviceInterface);
- if (!NT_SUCCESS(status))
- goto fail1;
-
- status = XENFILT_PVDEVICE(GetActive,
- &Pdo->PvdeviceInterface,
- ActiveDeviceID,
- ActiveInstanceID);
+ status = DriverGetActive(ActiveDeviceID,
+ ActiveInstanceID);
if (!NT_SUCCESS(status))
goto done;
}
done:
- XENFILT_PVDEVICE(Release, &Pdo->PvdeviceInterface);
-
status = RtlStringCbPrintfA(Dx->DeviceID,
MAX_DEVICE_ID_LEN,
"%s",
"%s",
InstanceID);
ASSERT(NT_SUCCESS(status));
-
- return STATUS_SUCCESS;
-
-fail1:
- Error("fail1 (%08x)\n", status);
-
- return status;
}
static FORCEINLINE PCHAR
} \
DEFINE_PDO_QUERY_INTERFACE(Emulated)
-DEFINE_PDO_QUERY_INTERFACE(Pvdevice)
struct _INTERFACE_ENTRY {
const GUID *Guid;
struct _INTERFACE_ENTRY PdoInterfaceTable[] = {
DEFINE_INTERFACE_ENTRY(EMULATED_INTERFACE, Emulated),
- DEFINE_INTERFACE_ENTRY(PVDEVICE_INTERFACE, Pvdevice),
{ NULL, NULL, NULL }
};
if (!NT_SUCCESS(status))
goto fail6;
- status = PvdeviceGetInterface(DriverGetPvdeviceContext(),
- XENFILT_PVDEVICE_INTERFACE_VERSION_MAX,
- (PINTERFACE)&Pdo->PvdeviceInterface,
- sizeof (Pdo->PvdeviceInterface));
- ASSERT(NT_SUCCESS(status));
-
- status = PdoSetDeviceInstance(Pdo, DeviceID, InstanceID);
- if (!NT_SUCCESS(status))
- goto fail7;
+ PdoSetDeviceInstance(Pdo, DeviceID, InstanceID);
__PdoSetName(Pdo);
return STATUS_SUCCESS;
-fail7:
- Error("fail7\n");
-
- RtlZeroMemory(&Pdo->PvdeviceInterface,
- sizeof (XENFILT_PVDEVICE_INTERFACE));
-
fail6:
Error("fail6\n");
RtlZeroMemory(Pdo->Name, sizeof (Pdo->Name));
- RtlZeroMemory(&Pdo->PvdeviceInterface,
- sizeof (XENFILT_PVDEVICE_INTERFACE));
-
EmulatedRemoveObject(DriverGetEmulatedContext(),
Pdo->EmulatedObject);
Pdo->EmulatedObject = NULL;
+++ /dev/null
-/* Copyright (c) Citrix Systems Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms,
- * with or without modification, are permitted provided
- * that the following conditions are met:
- *
- * * Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the
- * following disclaimer.
- * * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the
- * following disclaimer in the documentation and/or other
- * materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
- * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <ntddk.h>
-#include <ntstrsafe.h>
-#include <stdlib.h>
-#include <stdarg.h>
-#include <xen.h>
-
-#include "driver.h"
-#include "registry.h"
-#include "emulated.h"
-#include "pvdevice.h"
-#include "mutex.h"
-#include "dbg_print.h"
-#include "assert.h"
-#include "util.h"
-
-struct _XENFILT_PVDEVICE_CONTEXT {
- KSPIN_LOCK Lock;
- LONG References;
- XENFILT_EMULATED_INTERFACE EmulatedInterface;
- MUTEX Mutex;
-};
-
-#define XENFILT_PVDEVICE_TAG 'EDVP'
-
-static FORCEINLINE PVOID
-__PvdeviceAllocate(
- IN ULONG Length
- )
-{
- return __AllocatePoolWithTag(NonPagedPool, Length, XENFILT_PVDEVICE_TAG);
-}
-
-static FORCEINLINE VOID
-__PvdeviceFree(
- IN PVOID Buffer
- )
-{
- ExFreePoolWithTag(Buffer, XENFILT_PVDEVICE_TAG);
-}
-
-static const CHAR *PvdeviceLegacyPrefix[] = {
- "PCI\\VEN_5853&DEV_0001",
- "PCI\\VEN_5853&DEV_0002",
- NULL
-};
-
-static BOOLEAN
-PvdeviceIsLegacy(
- IN PXENFILT_PVDEVICE_CONTEXT Context,
- IN PCHAR DeviceID
- )
-{
- ULONG Index;
-
- UNREFERENCED_PARAMETER(Context);
-
- for (Index = 0; PvdeviceLegacyPrefix[Index] != NULL; Index++) {
- const CHAR *Prefix = PvdeviceLegacyPrefix[Index];
-
- if (_strnicmp(DeviceID, Prefix, strlen(Prefix)) == 0)
- return TRUE;
- }
-
- return FALSE;
-}
-
-static const CHAR *PvdeviceVendorDeviceID[] = {
-#ifdef VENDOR_DEVICE_ID_STR
- "PCI\\VEN_5853&DEV_" VENDOR_DEVICE_ID_STR "&SUBSYS_C0005853&REV_01",
-#endif
- NULL
-};
-
-static BOOLEAN
-PvdeviceIsVendorPresent(
- IN PXENFILT_PVDEVICE_CONTEXT Context
- )
-{
- ULONG Index;
-
- for (Index = 0; PvdeviceVendorDeviceID[Index] != NULL; Index++) {
- const CHAR *DeviceID = PvdeviceVendorDeviceID[Index];
-
- if (XENFILT_EMULATED(IsDevicePresent,
- &Context->EmulatedInterface,
- (PCHAR)DeviceID,
- NULL))
- return TRUE;
- }
-
- return FALSE;
-}
-
-static NTSTATUS
-PvdeviceGetActive(
- IN PINTERFACE Interface,
- OUT PCHAR DeviceID,
- OUT PCHAR InstanceID
- )
-{
- PXENFILT_PVDEVICE_CONTEXT Context = Interface->Context;
- HANDLE ParametersKey;
- PANSI_STRING Ansi;
- NTSTATUS status;
-
- Trace("====>\n");
-
- ASSERT3U(KeGetCurrentIrql(), ==, PASSIVE_LEVEL);
-
- ParametersKey = DriverGetParametersKey();
-
- AcquireMutex(&Context->Mutex);
-
- status = RegistryQuerySzValue(ParametersKey,
- "ActiveDeviceID",
- NULL,
- &Ansi);
- if (!NT_SUCCESS(status))
- goto fail1;
-
- status = RtlStringCbPrintfA(DeviceID,
- MAX_DEVICE_ID_LEN,
- "%Z",
- &Ansi[0]);
- ASSERT(NT_SUCCESS(status));
-
- RegistryFreeSzValue(Ansi);
-
- status = RegistryQuerySzValue(ParametersKey,
- "ActiveInstanceID",
- NULL,
- &Ansi);
- if (!NT_SUCCESS(status))
- goto fail2;
-
- status = RtlStringCbPrintfA(InstanceID,
- MAX_DEVICE_ID_LEN,
- "%Z",
- &Ansi[0]);
- ASSERT(NT_SUCCESS(status));
-
- RegistryFreeSzValue(Ansi);
-
- ReleaseMutex(&Context->Mutex);
-
- Trace("<====\n");
-
- return STATUS_SUCCESS;
-
-fail2:
-fail1:
- ReleaseMutex(&Context->Mutex);
-
- return status;
-}
-
-static NTSTATUS
-PvdeviceSetActive(
- IN PINTERFACE Interface,
- IN PCHAR DeviceID,
- IN PCHAR InstanceID
- )
-{
- PXENFILT_PVDEVICE_CONTEXT Context = Interface->Context;
- HANDLE ParametersKey;
- ANSI_STRING Ansi[2];
- NTSTATUS status;
-
- Trace("====>\n");
-
- ASSERT3U(KeGetCurrentIrql(), ==, PASSIVE_LEVEL);
-
- ParametersKey = DriverGetParametersKey();
-
- AcquireMutex(&Context->Mutex);
-
- status = STATUS_UNSUCCESSFUL;
- if (PvdeviceIsLegacy(Context, DeviceID) &&
- PvdeviceIsVendorPresent(Context))
- goto fail1;
-
- RtlZeroMemory(Ansi, sizeof (ANSI_STRING) * 2);
-
- RtlInitAnsiString(&Ansi[0], DeviceID);
-
- status = RegistryUpdateSzValue(ParametersKey,
- "ActiveDeviceID",
- REG_SZ,
- Ansi);
- if (!NT_SUCCESS(status))
- goto fail2;
-
- RtlInitAnsiString(&Ansi[0], InstanceID);
-
- status = RegistryUpdateSzValue(ParametersKey,
- "ActiveInstanceID",
- REG_SZ,
- Ansi);
- if (!NT_SUCCESS(status))
- goto fail3;
-
- Info("%s\\%s\n", DeviceID, InstanceID);
-
- ReleaseMutex(&Context->Mutex);
-
- Trace("<====\n");
-
- return STATUS_SUCCESS;
-
-fail3:
-fail2:
-fail1:
- ReleaseMutex(&Context->Mutex);
-
- return status;
-}
-
-static NTSTATUS
-PvdeviceClearActive(
- IN PINTERFACE Interface
- )
-{
- PXENFILT_PVDEVICE_CONTEXT Context = Interface->Context;
- HANDLE ParametersKey;
- NTSTATUS status;
-
- Trace("====>\n");
-
- ASSERT3U(KeGetCurrentIrql(), ==, PASSIVE_LEVEL);
-
- ParametersKey = DriverGetParametersKey();
-
- AcquireMutex(&Context->Mutex);
-
- status = RegistryDeleteValue(ParametersKey,
- "ActiveDeviceID");
- if (!NT_SUCCESS(status))
- goto fail1;
-
- status = RegistryDeleteValue(ParametersKey,
- "ActiveInstanceID");
- if (!NT_SUCCESS(status))
- goto fail2;
-
- Info("DONE\n");
-
- ReleaseMutex(&Context->Mutex);
-
- Trace("<====\n");
-
- return STATUS_SUCCESS;
-
-fail2:
-fail1:
- ReleaseMutex(&Context->Mutex);
-
- return status;
-}
-
-static NTSTATUS
-PvdeviceAcquire(
- IN PINTERFACE Interface
- )
-{
- PXENFILT_PVDEVICE_CONTEXT Context = Interface->Context;
- KIRQL Irql;
- NTSTATUS status;
-
- KeAcquireSpinLock(&Context->Lock, &Irql);
-
- if (Context->References++ != 0)
- goto done;
-
- Trace("====>\n");
-
- status = XENFILT_EMULATED(Acquire, &Context->EmulatedInterface);
- if (!NT_SUCCESS(status))
- goto fail1;
-
- Trace("<====\n");
-
-done:
- KeReleaseSpinLock(&Context->Lock, Irql);
-
- return STATUS_SUCCESS;
-
-fail1:
- Error("fail1 (%08x)\n", status);
-
- KeReleaseSpinLock(&Context->Lock, Irql);
-
- return status;
-}
-
-static VOID
-PvdeviceRelease(
- IN PINTERFACE Interface
- )
-{
- PXENFILT_PVDEVICE_CONTEXT Context = Interface->Context;
- KIRQL Irql;
-
- KeAcquireSpinLock(&Context->Lock, &Irql);
-
- if (--Context->References > 0)
- goto done;
-
- Trace("====>\n");
-
- XENFILT_EMULATED(Release, &Context->EmulatedInterface);
-
- Trace("<====\n");
-
-done:
- KeReleaseSpinLock(&Context->Lock, Irql);
-}
-
-static struct _XENFILT_PVDEVICE_INTERFACE_V1 PvdeviceInterfaceVersion1 = {
- { sizeof (struct _XENFILT_PVDEVICE_INTERFACE_V1), 1, NULL, NULL, NULL },
- PvdeviceAcquire,
- PvdeviceRelease,
- PvdeviceGetActive,
- PvdeviceSetActive,
- PvdeviceClearActive
-};
-
-NTSTATUS
-PvdeviceInitialize(
- OUT PXENFILT_PVDEVICE_CONTEXT *Context
- )
-{
- NTSTATUS status;
-
- Trace("====>\n");
-
- *Context = __PvdeviceAllocate(sizeof (XENFILT_PVDEVICE_CONTEXT));
-
- status = STATUS_NO_MEMORY;
- if (*Context == NULL)
- goto fail1;
-
- status = EmulatedGetInterface(DriverGetEmulatedContext(),
- XENFILT_EMULATED_INTERFACE_VERSION_MAX,
- (PINTERFACE)&(*Context)->EmulatedInterface,
- sizeof ((*Context)->EmulatedInterface));
- ASSERT(NT_SUCCESS(status));
-
- KeInitializeSpinLock(&(*Context)->Lock);
- InitializeMutex(&(*Context)->Mutex);
-
- Trace("<====\n");
-
- return STATUS_SUCCESS;
-
-fail1:
- Error("fail1 (%08x)\n", status);
-
- return status;
-}
-
-NTSTATUS
-PvdeviceGetInterface(
- IN PXENFILT_PVDEVICE_CONTEXT Context,
- IN ULONG Version,
- IN OUT PINTERFACE Interface,
- IN ULONG Size
- )
-{
- NTSTATUS status;
-
- ASSERT(Context != NULL);
-
- switch (Version) {
- case 1: {
- struct _XENFILT_PVDEVICE_INTERFACE_V1 *PvdeviceInterface;
-
- PvdeviceInterface = (struct _XENFILT_PVDEVICE_INTERFACE_V1 *)Interface;
-
- status = STATUS_BUFFER_OVERFLOW;
- if (Size < sizeof (struct _XENFILT_PVDEVICE_INTERFACE_V1))
- break;
-
- *PvdeviceInterface = PvdeviceInterfaceVersion1;
-
- ASSERT3U(Interface->Version, ==, Version);
- Interface->Context = Context;
-
- status = STATUS_SUCCESS;
- break;
- }
- default:
- status = STATUS_NOT_SUPPORTED;
- break;
- }
-
- return status;
-}
-
-VOID
-PvdeviceTeardown(
- IN PXENFILT_PVDEVICE_CONTEXT Context
- )
-{
- Trace("====>\n");
-
- RtlZeroMemory(&Context->Mutex, sizeof (MUTEX));
- RtlZeroMemory(&Context->Lock, sizeof (KSPIN_LOCK));
-
- RtlZeroMemory(&Context->EmulatedInterface,
- sizeof (XENFILT_EMULATED_INTERFACE));
-
- ASSERT(IsZeroMemory(Context, sizeof (XENFILT_PVDEVICE_CONTEXT)));
- __PvdeviceFree(Context);
-
- Trace("<====\n");
-}
+++ /dev/null
-/* Copyright (c) Citrix Systems Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms,
- * with or without modification, are permitted provided
- * that the following conditions are met:
- *
- * * Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the
- * following disclaimer.
- * * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the
- * following disclaimer in the documentation and/or other
- * materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
- * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef _XENFILT_PVDEVICE_H
-#define _XENFILT_PVDEVICE_H
-
-#include <ntddk.h>
-#include <xen.h>
-#include <pvdevice_interface.h>
-
-typedef struct _XENFILT_PVDEVICE_CONTEXT XENFILT_PVDEVICE_CONTEXT, *PXENFILT_PVDEVICE_CONTEXT;
-
-extern NTSTATUS
-PvdeviceInitialize(
- OUT PXENFILT_PVDEVICE_CONTEXT *Context
- );
-
-extern NTSTATUS
-PvdeviceGetInterface(
- IN PXENFILT_PVDEVICE_CONTEXT Context,
- IN ULONG Version,
- IN OUT PINTERFACE Interface,
- IN ULONG Size
- );
-
-extern VOID
-PvdeviceTeardown(
- IN PXENFILT_PVDEVICE_CONTEXT Context
- );
-
-#endif // _XENFILT_PVDEVICE_H
<ClCompile Include="../../src/common/registry.c" />
<ClCompile Include="../../src/xenfilt/driver.c" />
<ClCompile Include="../../src/xenfilt/emulated.c" />
- <ClCompile Include="../../src/xenfilt/pvdevice.c" />
<ClCompile Include="../../src/xenfilt/fdo.c" />
<ClCompile Include="../../src/xenfilt/pdo.c" />
<ClCompile Include="../../src/xenfilt/thread.c" />
<ClCompile Include="../../src/common/registry.c" />
<ClCompile Include="../../src/xenfilt/driver.c" />
<ClCompile Include="../../src/xenfilt/emulated.c" />
- <ClCompile Include="../../src/xenfilt/pvdevice.c" />
<ClCompile Include="../../src/xenfilt/fdo.c" />
<ClCompile Include="../../src/xenfilt/pdo.c" />
<ClCompile Include="../../src/xenfilt/thread.c" />
projects / people / pauldu / xenbus.git / commitdiff