From 040444db8fc48cd4012bc7ec4568f6a9b6143cb3 Mon Sep 17 00:00:00 2001 From: Egor Tensin Date: Fri, 28 Apr 2017 17:48:44 +0300 Subject: nt_path_converter -> nt_namespace --- km/src/special/nt_path_converter/control_codes.h | 12 -- km/src/special/nt_path_converter/device.c | 203 ----------------------- km/src/special/nt_path_converter/device.h | 13 -- km/src/special/nt_path_converter/main.c | 27 --- km/src/special/nt_path_converter/makefile | 1 - km/src/special/nt_path_converter/nt2dos.c | 151 ----------------- km/src/special/nt_path_converter/nt2dos.h | 12 -- km/src/special/nt_path_converter/sources | 3 - 8 files changed, 422 deletions(-) delete mode 100644 km/src/special/nt_path_converter/control_codes.h delete mode 100644 km/src/special/nt_path_converter/device.c delete mode 100644 km/src/special/nt_path_converter/device.h delete mode 100644 km/src/special/nt_path_converter/main.c delete mode 100644 km/src/special/nt_path_converter/makefile delete mode 100644 km/src/special/nt_path_converter/nt2dos.c delete mode 100644 km/src/special/nt_path_converter/nt2dos.h delete mode 100644 km/src/special/nt_path_converter/sources (limited to 'km/src/special/nt_path_converter') diff --git a/km/src/special/nt_path_converter/control_codes.h b/km/src/special/nt_path_converter/control_codes.h deleted file mode 100644 index 3fb2aff..0000000 --- a/km/src/special/nt_path_converter/control_codes.h +++ /dev/null @@ -1,12 +0,0 @@ -/* - * Copyright (c) 2015 Egor Tensin - * This file is part of the "Windows 7 drivers" project. - * For details, see https://github.com/egor-tensin/windows7-drivers. - * Distributed under the MIT License. - */ - -#pragma once - -#include - -#define CONVERT_NT_PATH CTL_CODE(0x8000, 0x800, METHOD_BUFFERED, FILE_ANY_ACCESS) diff --git a/km/src/special/nt_path_converter/device.c b/km/src/special/nt_path_converter/device.c deleted file mode 100644 index a179984..0000000 --- a/km/src/special/nt_path_converter/device.c +++ /dev/null @@ -1,203 +0,0 @@ -/* - * Copyright (c) 2015 Egor Tensin - * This file is part of the "Windows 7 drivers" project. - * For details, see https://github.com/egor-tensin/windows7-drivers. - * Distributed under the MIT License. - */ - -#include "control_codes.h" -#include "device.h" -#include "nt2dos.h" - -#include - -static NTSTATUS device_open(DEVICE_OBJECT *device_object, IRP *irp) -{ - NTSTATUS status = STATUS_SUCCESS; - - UNREFERENCED_PARAMETER(device_object); - - irp->IoStatus.Status = status; - irp->IoStatus.Information = 0; - IoCompleteRequest(irp, IO_NO_INCREMENT); - return status; -} - -typedef NTSTATUS (*ioctl_handler)( - void *, unsigned long, - void *, unsigned long, - ULONG_PTR *); - -static NTSTATUS handle_convert_nt_path( - void *in_buf, - unsigned long in_buf_size, - void *out_buf, - unsigned long out_buf_size, - ULONG_PTR *nbwritten) -{ - UNICODE_STRING uUnresolved, uResolved; - NTSTATUS status = STATUS_SUCCESS; - - DbgPrint("nt_path_converter: unresolved path: %ws\n", (WCHAR *) in_buf); - DbgPrint("nt_path_converter: unresolved size: %lu\n", in_buf_size); - - RtlInitUnicodeString(&uUnresolved, (WCHAR *) in_buf); - status = nt2dos(&uResolved, &uUnresolved); - - if (!NT_SUCCESS(status)) - return status; - - *nbwritten = uResolved.Length + sizeof(WCHAR); - - DbgPrint("nt_path_converter: resolved path: %wZ\n", &uResolved); - DbgPrint("nt_path_converter: resolved size: %Iu\n", *nbwritten); - - if (out_buf_size < *nbwritten) - { - status = STATUS_BUFFER_OVERFLOW; - goto free_resolved; - } - - RtlFillMemory(out_buf, *nbwritten, L'\0'); - RtlCopyMemory(out_buf, uResolved.Buffer, uResolved.Length); - -free_resolved: - ExFreePool(uResolved.Buffer); - - return status; -} - -static NTSTATUS device_ioctl(DEVICE_OBJECT *device_object, IRP *irp) -{ - IO_STACK_LOCATION *io_stack_loc; - void* in_buf, *out_buf; - unsigned long in_buf_size, out_buf_size; - ioctl_handler handler; - NTSTATUS status = STATUS_UNSUCCESSFUL; - - UNREFERENCED_PARAMETER(device_object); - - irp->IoStatus.Status = status; - irp->IoStatus.Information = 0; - io_stack_loc = IoGetCurrentIrpStackLocation(irp); - - in_buf = out_buf = irp->AssociatedIrp.SystemBuffer; - in_buf_size = io_stack_loc->Parameters.DeviceIoControl.InputBufferLength; - out_buf_size = io_stack_loc->Parameters.DeviceIoControl.OutputBufferLength; - - switch (io_stack_loc->Parameters.DeviceIoControl.IoControlCode) - { - case CONVERT_NT_PATH: - handler = handle_convert_nt_path; - break; - - default: - status = irp->IoStatus.Status = STATUS_NOT_SUPPORTED; - goto complete_request; - } - - status = irp->IoStatus.Status = handler( - in_buf, in_buf_size, - out_buf, out_buf_size, - &irp->IoStatus.Information); - -complete_request: - IoCompleteRequest(irp, IO_NO_INCREMENT); - - return status; -} - -typedef struct -{ - const wchar_t *path; - const wchar_t *symlink; -} -DeviceInfo; - -typedef struct -{ - DEVICE_OBJECT *object; - UNICODE_STRING path; - UNICODE_STRING symlink; -} -Device; - -#define NUMOF_DEVICES 1 - -static DeviceInfo devices_info[NUMOF_DEVICES] = -{ - { - L"\\Device\\nt_path_converter", - L"\\DosDevices\\nt_path_converter", - }, -}; - -static Device devices[NUMOF_DEVICES]; - -static void destroy_device(int i) -{ - IoDeleteSymbolicLink(&devices[i].symlink); - IoDeleteDevice(devices[i].object); -} - -void destroy_devices() -{ - int i; - for (i = 0; i < NUMOF_DEVICES; ++i) - destroy_device(i); -} - -static NTSTATUS set_up_device(DRIVER_OBJECT *driver_object, int i) -{ - NTSTATUS status = STATUS_SUCCESS; - - RtlInitUnicodeString(&devices[i].path, devices_info[i].path); - RtlInitUnicodeString(&devices[i].symlink, devices_info[i].symlink); - - status = IoCreateDevice( - driver_object, - 0, - &devices[i].path, - FILE_DEVICE_UNKNOWN, - FILE_DEVICE_SECURE_OPEN, - FALSE, - &devices[i].object); - - if (!NT_SUCCESS(status)) - return status; - - devices[i].object->Flags |= DO_BUFFERED_IO; - devices[i].object->Flags &= ~DO_DEVICE_INITIALIZING; - - if (!NT_SUCCESS(status = IoCreateSymbolicLink( - &devices[i].symlink, &devices[i].path))) - goto delete_device; - - return status; - -delete_device: - IoDeleteDevice(devices[i].object); - - return status; -} - -NTSTATUS set_up_devices(DRIVER_OBJECT *driver_object) -{ - int i, j; - NTSTATUS status = STATUS_SUCCESS; - - for (i = 0; i < NUMOF_DEVICES; ++i) - if (!NT_SUCCESS(status = set_up_device(driver_object, i))) - goto destroy_devices; - - driver_object->MajorFunction[IRP_MJ_CREATE] = device_open; - driver_object->MajorFunction[IRP_MJ_DEVICE_CONTROL] = device_ioctl; - - return status; - -destroy_devices: - for (j = 0; j < i; ++j) - destroy_device(j); - - return status; -} diff --git a/km/src/special/nt_path_converter/device.h b/km/src/special/nt_path_converter/device.h deleted file mode 100644 index 4f117e9..0000000 --- a/km/src/special/nt_path_converter/device.h +++ /dev/null @@ -1,13 +0,0 @@ -/* - * Copyright (c) 2015 Egor Tensin - * This file is part of the "Windows 7 drivers" project. - * For details, see https://github.com/egor-tensin/windows7-drivers. - * Distributed under the MIT License. - */ - -#pragma once - -#include - -NTSTATUS set_up_devices(DRIVER_OBJECT *); -void destroy_devices(); diff --git a/km/src/special/nt_path_converter/main.c b/km/src/special/nt_path_converter/main.c deleted file mode 100644 index a1c08e8..0000000 --- a/km/src/special/nt_path_converter/main.c +++ /dev/null @@ -1,27 +0,0 @@ -/* - * Copyright (c) 2015 Egor Tensin - * This file is part of the "Windows 7 drivers" project. - * For details, see https://github.com/egor-tensin/windows7-drivers. - * Distributed under the MIT License. - */ - -#include "device.h" - -#include - -static void on_driver_unload(DRIVER_OBJECT *driver_object) -{ - UNREFERENCED_PARAMETER(driver_object); - - destroy_devices(); -} - -NTSTATUS DriverEntry( - DRIVER_OBJECT *driver_object, - UNICODE_STRING *registry_path) -{ - UNREFERENCED_PARAMETER(registry_path); - - driver_object->DriverUnload = on_driver_unload; - return set_up_devices(driver_object); -} diff --git a/km/src/special/nt_path_converter/makefile b/km/src/special/nt_path_converter/makefile deleted file mode 100644 index 5acbbd2..0000000 --- a/km/src/special/nt_path_converter/makefile +++ /dev/null @@ -1 +0,0 @@ -!INCLUDE $(NTMAKEENV)\makefile.def diff --git a/km/src/special/nt_path_converter/nt2dos.c b/km/src/special/nt_path_converter/nt2dos.c deleted file mode 100644 index d1bdb3d..0000000 --- a/km/src/special/nt_path_converter/nt2dos.c +++ /dev/null @@ -1,151 +0,0 @@ -/* - * Copyright (c) 2015 Egor Tensin - * This file is part of the "Windows 7 drivers" project. - * For details, see https://github.com/egor-tensin/windows7-drivers. - * Distributed under the MIT License. - */ - -#include - -#include "nt2dos.h" - -static NTSTATUS get_object_name_info( - void *object, - OBJECT_NAME_INFORMATION **object_name_info) -{ - unsigned long nbneeded; - NTSTATUS status = STATUS_SUCCESS; - - status = ObQueryNameString(object, NULL, 0, &nbneeded); - - if (status != STATUS_INFO_LENGTH_MISMATCH) - return status; - - *object_name_info = ExAllocatePoolWithTag(PagedPool, nbneeded, '1l'); - - if (*object_name_info == NULL) - return STATUS_INSUFFICIENT_RESOURCES; - - status = ObQueryNameString(object, *object_name_info, nbneeded, &nbneeded); - - if (!NT_SUCCESS(status)) - goto free_object_name_info; - - return status; - -free_object_name_info: - ExFreePool(*object_name_info); - - return status; -} - -NTSTATUS nt2dos(UNICODE_STRING *u_resolved, UNICODE_STRING *u_unresolved) -{ - IO_STATUS_BLOCK io_status_block; - DEVICE_OBJECT *volume_object; - FILE_OBJECT *file_object; - HANDLE file; - OBJECT_ATTRIBUTES file_attrs; - OBJECT_NAME_INFORMATION *file_name_info, *volume_name_info; - UNICODE_STRING u_dos_name; - USHORT u_resolved_size; - NTSTATUS status = STATUS_SUCCESS; - - InitializeObjectAttributes( - &file_attrs, - u_unresolved, - OBJ_CASE_INSENSITIVE | OBJ_OPENIF, - NULL, - NULL); - - status = ZwCreateFile( - &file, - FILE_READ_ATTRIBUTES, - &file_attrs, - &io_status_block, - NULL, - FILE_ATTRIBUTE_NORMAL, - FILE_SHARE_READ | FILE_SHARE_WRITE, - FILE_OPEN, - FILE_SYNCHRONOUS_IO_NONALERT, - NULL, - 0); - - if (!NT_SUCCESS(status)) - return status; - - status = ObReferenceObjectByHandle( - file, - FILE_READ_ATTRIBUTES, - *IoFileObjectType, - KernelMode, - &file_object, - NULL); - - if (!NT_SUCCESS(status)) - goto close_file; - - status = get_object_name_info(file_object, &file_name_info); - - if (!NT_SUCCESS(status)) - goto close_file; - - if (file_object->Vpb == NULL) - { - u_resolved->Buffer = ExAllocatePoolWithTag( - PagedPool, file_name_info->Name.Length, '1l'); - - if (u_resolved->Buffer == NULL) - { - status = STATUS_INSUFFICIENT_RESOURCES; - goto free_file_name_info; - } - - RtlInitEmptyUnicodeString( - u_resolved, u_resolved->Buffer, file_name_info->Name.Length); - RtlCopyUnicodeString(u_resolved, &file_name_info->Name); - goto free_file_name_info; - } - - volume_object = file_object->Vpb->RealDevice; - status = get_object_name_info(volume_object, &volume_name_info); - - if (!NT_SUCCESS(status)) - goto free_file_name_info; - - status = IoVolumeDeviceToDosName(volume_object, &u_dos_name); - - if (!NT_SUCCESS(status)) - goto free_volume_name_info; - - u_resolved_size = file_name_info->Name.Length - volume_name_info->Name.Length + u_dos_name.Length; - - u_resolved->Buffer = ExAllocatePoolWithTag(PagedPool, u_resolved_size, '1l'); - - if (u_resolved->Buffer == NULL) - { - status = STATUS_INSUFFICIENT_RESOURCES; - goto free_dos_name; - } - - RtlInitEmptyUnicodeString(u_resolved, u_resolved->Buffer, u_resolved_size); - - RtlCopyUnicodeString(u_resolved, &u_dos_name); - file_name_info->Name.Buffer += volume_name_info->Name.Length / sizeof(wchar_t); - file_name_info->Name.Length -= volume_name_info->Name.Length; - RtlUnicodeStringCat(u_resolved, &file_name_info->Name); - -free_dos_name: - ExFreePool(u_dos_name.Buffer); - -free_volume_name_info: - ExFreePool(volume_name_info); - -free_file_name_info: - ExFreePool(file_name_info); - -close_file: - ZwClose(file); - - return status; -} diff --git a/km/src/special/nt_path_converter/nt2dos.h b/km/src/special/nt_path_converter/nt2dos.h deleted file mode 100644 index ce0b690..0000000 --- a/km/src/special/nt_path_converter/nt2dos.h +++ /dev/null @@ -1,12 +0,0 @@ -/* - * Copyright (c) 2015 Egor Tensin - * This file is part of the "Windows 7 drivers" project. - * For details, see https://github.com/egor-tensin/windows7-drivers. - * Distributed under the MIT License. - */ - -#pragma once - -#include - -NTSTATUS nt2dos(UNICODE_STRING *resolved, UNICODE_STRING *unresolved); diff --git a/km/src/special/nt_path_converter/sources b/km/src/special/nt_path_converter/sources deleted file mode 100644 index 02a42cd..0000000 --- a/km/src/special/nt_path_converter/sources +++ /dev/null @@ -1,3 +0,0 @@ -TARGETTYPE = DRIVER -TARGETNAME = nt_path_converter -SOURCES = device.c main.c nt2dos.c -- cgit v1.2.3