diff options
author | Egor Tensin <Egor.Tensin@gmail.com> | 2017-04-27 19:19:56 +0300 |
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committer | Egor Tensin <Egor.Tensin@gmail.com> | 2017-04-27 19:19:56 +0300 |
commit | 974bd0388994715b4fa35ac54986e3c1ed4e3f55 (patch) | |
tree | 53b23c15bde662804ecb7ef8f54026ff883a7cc2 /km/src/special/nt_path_converter | |
parent | sysenter: add missing configurations to solution (diff) | |
download | windows7-drivers-974bd0388994715b4fa35ac54986e3c1ed4e3f55.tar.gz windows7-drivers-974bd0388994715b4fa35ac54986e3c1ed4e3f55.zip |
reorganize files
* src/ -> km/src/
* utils/ -> um/
* Move WDK 7.1-specific *.bat files to km/build/wdk7.1/
* Move WDK 8.1 Update 1 solutions to km/build/wdk8.1update/
Diffstat (limited to 'km/src/special/nt_path_converter')
-rw-r--r-- | km/src/special/nt_path_converter/control_codes.h | 12 | ||||
-rw-r--r-- | km/src/special/nt_path_converter/device.c | 203 | ||||
-rw-r--r-- | km/src/special/nt_path_converter/device.h | 13 | ||||
-rw-r--r-- | km/src/special/nt_path_converter/main.c | 27 | ||||
-rw-r--r-- | km/src/special/nt_path_converter/makefile | 1 | ||||
-rw-r--r-- | km/src/special/nt_path_converter/nt2dos.c | 151 | ||||
-rw-r--r-- | km/src/special/nt_path_converter/nt2dos.h | 12 | ||||
-rw-r--r-- | km/src/special/nt_path_converter/sources | 3 |
8 files changed, 422 insertions, 0 deletions
diff --git a/km/src/special/nt_path_converter/control_codes.h b/km/src/special/nt_path_converter/control_codes.h new file mode 100644 index 0000000..3fb2aff --- /dev/null +++ b/km/src/special/nt_path_converter/control_codes.h @@ -0,0 +1,12 @@ +/* + * Copyright (c) 2015 Egor Tensin <Egor.Tensin@gmail.com> + * 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 <ntddk.h> + +#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 new file mode 100644 index 0000000..a179984 --- /dev/null +++ b/km/src/special/nt_path_converter/device.c @@ -0,0 +1,203 @@ +/* + * Copyright (c) 2015 Egor Tensin <Egor.Tensin@gmail.com> + * 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 <ntddk.h> + +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 new file mode 100644 index 0000000..4f117e9 --- /dev/null +++ b/km/src/special/nt_path_converter/device.h @@ -0,0 +1,13 @@ +/* + * Copyright (c) 2015 Egor Tensin <Egor.Tensin@gmail.com> + * 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 <ntddk.h> + +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 new file mode 100644 index 0000000..a1c08e8 --- /dev/null +++ b/km/src/special/nt_path_converter/main.c @@ -0,0 +1,27 @@ +/* + * Copyright (c) 2015 Egor Tensin <Egor.Tensin@gmail.com> + * 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 <ntddk.h> + +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 new file mode 100644 index 0000000..5acbbd2 --- /dev/null +++ b/km/src/special/nt_path_converter/makefile @@ -0,0 +1 @@ +!INCLUDE $(NTMAKEENV)\makefile.def diff --git a/km/src/special/nt_path_converter/nt2dos.c b/km/src/special/nt_path_converter/nt2dos.c new file mode 100644 index 0000000..d1bdb3d --- /dev/null +++ b/km/src/special/nt_path_converter/nt2dos.c @@ -0,0 +1,151 @@ +/* + * Copyright (c) 2015 Egor Tensin <Egor.Tensin@gmail.com> + * 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 <ntifs.h> + +#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 new file mode 100644 index 0000000..ce0b690 --- /dev/null +++ b/km/src/special/nt_path_converter/nt2dos.h @@ -0,0 +1,12 @@ +/* + * Copyright (c) 2015 Egor Tensin <Egor.Tensin@gmail.com> + * 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 <ntstrsafe.h> + +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 new file mode 100644 index 0000000..02a42cd --- /dev/null +++ b/km/src/special/nt_path_converter/sources @@ -0,0 +1,3 @@ +TARGETTYPE = DRIVER +TARGETNAME = nt_path_converter +SOURCES = device.c main.c nt2dos.c |