Sweden-Number/dlls/ntdll/file.c

653 lines
24 KiB
C

/*
* Copyright 1999, 2000 Juergen Schmied
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <assert.h>
#include "ntstatus.h"
#define WIN32_NO_STATUS
#define NONAMELESSUNION
#include "wine/debug.h"
#include "wine/server.h"
#include "ntdll_misc.h"
#include "winternl.h"
#include "winioctl.h"
#include "ddk/ntddk.h"
#include "ddk/ntddser.h"
#define WINE_MOUNTMGR_EXTENSIONS
#include "ddk/mountmgr.h"
WINE_DEFAULT_DEBUG_CHANNEL(ntdll);
/**************************************************************************
* NtOpenFile [NTDLL.@]
* ZwOpenFile [NTDLL.@]
*
* Open a file.
*
* PARAMS
* handle [O] Variable that receives the file handle on return
* access [I] Access desired by the caller to the file
* attr [I] Structure describing the file to be opened
* io [O] Receives details about the result of the operation
* sharing [I] Type of shared access the caller requires
* options [I] Options for the file open
*
* RETURNS
* Success: 0. FileHandle and IoStatusBlock are updated.
* Failure: An NTSTATUS error code describing the error.
*/
NTSTATUS WINAPI NtOpenFile( PHANDLE handle, ACCESS_MASK access,
POBJECT_ATTRIBUTES attr, PIO_STATUS_BLOCK io,
ULONG sharing, ULONG options )
{
return unix_funcs->NtOpenFile( handle, access, attr, io, sharing, options );
}
/**************************************************************************
* NtCreateFile [NTDLL.@]
* ZwCreateFile [NTDLL.@]
*
* Either create a new file or directory, or open an existing file, device,
* directory or volume.
*
* PARAMS
* handle [O] Points to a variable which receives the file handle on return
* access [I] Desired access to the file
* attr [I] Structure describing the file
* io [O] Receives information about the operation on return
* alloc_size [I] Initial size of the file in bytes
* attributes [I] Attributes to create the file with
* sharing [I] Type of shared access the caller would like to the file
* disposition [I] Specifies what to do, depending on whether the file already exists
* options [I] Options for creating a new file
* ea_buffer [I] Pointer to an extended attributes buffer
* ea_length [I] Length of ea_buffer
*
* RETURNS
* Success: 0. handle and io are updated.
* Failure: An NTSTATUS error code describing the error.
*/
NTSTATUS WINAPI NtCreateFile( PHANDLE handle, ACCESS_MASK access, POBJECT_ATTRIBUTES attr,
PIO_STATUS_BLOCK io, PLARGE_INTEGER alloc_size,
ULONG attributes, ULONG sharing, ULONG disposition,
ULONG options, PVOID ea_buffer, ULONG ea_length )
{
return unix_funcs->NtCreateFile( handle, access, attr, io, alloc_size, attributes,
sharing, disposition, options, ea_buffer, ea_length );
}
/******************************************************************************
* NtReadFile [NTDLL.@]
* ZwReadFile [NTDLL.@]
*
* Read from an open file handle.
*
* PARAMS
* FileHandle [I] Handle returned from ZwOpenFile() or ZwCreateFile()
* Event [I] Event to signal upon completion (or NULL)
* ApcRoutine [I] Callback to call upon completion (or NULL)
* ApcContext [I] Context for ApcRoutine (or NULL)
* IoStatusBlock [O] Receives information about the operation on return
* Buffer [O] Destination for the data read
* Length [I] Size of Buffer
* ByteOffset [O] Destination for the new file pointer position (or NULL)
* Key [O] Function unknown (may be NULL)
*
* RETURNS
* Success: 0. IoStatusBlock is updated, and the Information member contains
* The number of bytes read.
* Failure: An NTSTATUS error code describing the error.
*/
NTSTATUS WINAPI NtReadFile(HANDLE hFile, HANDLE hEvent,
PIO_APC_ROUTINE apc, void* apc_user,
PIO_STATUS_BLOCK io_status, void* buffer, ULONG length,
PLARGE_INTEGER offset, PULONG key)
{
return unix_funcs->NtReadFile( hFile, hEvent, apc, apc_user, io_status, buffer, length, offset, key );
}
/******************************************************************************
* NtReadFileScatter [NTDLL.@]
* ZwReadFileScatter [NTDLL.@]
*/
NTSTATUS WINAPI NtReadFileScatter( HANDLE file, HANDLE event, PIO_APC_ROUTINE apc, void *apc_user,
PIO_STATUS_BLOCK io_status, FILE_SEGMENT_ELEMENT *segments,
ULONG length, PLARGE_INTEGER offset, PULONG key )
{
return unix_funcs->NtReadFileScatter( file, event, apc, apc_user, io_status,
segments, length, offset, key );
}
/******************************************************************************
* NtWriteFile [NTDLL.@]
* ZwWriteFile [NTDLL.@]
*
* Write to an open file handle.
*
* PARAMS
* FileHandle [I] Handle returned from ZwOpenFile() or ZwCreateFile()
* Event [I] Event to signal upon completion (or NULL)
* ApcRoutine [I] Callback to call upon completion (or NULL)
* ApcContext [I] Context for ApcRoutine (or NULL)
* IoStatusBlock [O] Receives information about the operation on return
* Buffer [I] Source for the data to write
* Length [I] Size of Buffer
* ByteOffset [O] Destination for the new file pointer position (or NULL)
* Key [O] Function unknown (may be NULL)
*
* RETURNS
* Success: 0. IoStatusBlock is updated, and the Information member contains
* The number of bytes written.
* Failure: An NTSTATUS error code describing the error.
*/
NTSTATUS WINAPI NtWriteFile(HANDLE hFile, HANDLE hEvent,
PIO_APC_ROUTINE apc, void* apc_user,
PIO_STATUS_BLOCK io_status,
const void* buffer, ULONG length,
PLARGE_INTEGER offset, PULONG key)
{
return unix_funcs->NtWriteFile( hFile, hEvent, apc, apc_user, io_status, buffer, length, offset, key );
}
/******************************************************************************
* NtWriteFileGather [NTDLL.@]
* ZwWriteFileGather [NTDLL.@]
*/
NTSTATUS WINAPI NtWriteFileGather( HANDLE file, HANDLE event, PIO_APC_ROUTINE apc, void *apc_user,
PIO_STATUS_BLOCK io_status, FILE_SEGMENT_ELEMENT *segments,
ULONG length, PLARGE_INTEGER offset, PULONG key )
{
return unix_funcs->NtWriteFileGather( file, event, apc, apc_user, io_status,
segments, length, offset, key );
}
/**************************************************************************
* NtDeviceIoControlFile [NTDLL.@]
* ZwDeviceIoControlFile [NTDLL.@]
*
* Perform an I/O control operation on an open file handle.
*
* PARAMS
* handle [I] Handle returned from ZwOpenFile() or ZwCreateFile()
* event [I] Event to signal upon completion (or NULL)
* apc [I] Callback to call upon completion (or NULL)
* apc_context [I] Context for ApcRoutine (or NULL)
* io [O] Receives information about the operation on return
* code [I] Control code for the operation to perform
* in_buffer [I] Source for any input data required (or NULL)
* in_size [I] Size of InputBuffer
* out_buffer [O] Source for any output data returned (or NULL)
* out_size [I] Size of OutputBuffer
*
* RETURNS
* Success: 0. IoStatusBlock is updated.
* Failure: An NTSTATUS error code describing the error.
*/
NTSTATUS WINAPI NtDeviceIoControlFile(HANDLE handle, HANDLE event,
PIO_APC_ROUTINE apc, PVOID apc_context,
PIO_STATUS_BLOCK io, ULONG code,
PVOID in_buffer, ULONG in_size,
PVOID out_buffer, ULONG out_size)
{
return unix_funcs->NtDeviceIoControlFile( handle, event, apc, apc_context, io, code,
in_buffer, in_size, out_buffer, out_size );
}
/**************************************************************************
* NtFsControlFile [NTDLL.@]
* ZwFsControlFile [NTDLL.@]
*
* Perform a file system control operation on an open file handle.
*
* PARAMS
* handle [I] Handle returned from ZwOpenFile() or ZwCreateFile()
* event [I] Event to signal upon completion (or NULL)
* apc [I] Callback to call upon completion (or NULL)
* apc_context [I] Context for ApcRoutine (or NULL)
* io [O] Receives information about the operation on return
* code [I] Control code for the operation to perform
* in_buffer [I] Source for any input data required (or NULL)
* in_size [I] Size of InputBuffer
* out_buffer [O] Source for any output data returned (or NULL)
* out_size [I] Size of OutputBuffer
*
* RETURNS
* Success: 0. IoStatusBlock is updated.
* Failure: An NTSTATUS error code describing the error.
*/
NTSTATUS WINAPI NtFsControlFile(HANDLE handle, HANDLE event, PIO_APC_ROUTINE apc,
PVOID apc_context, PIO_STATUS_BLOCK io, ULONG code,
PVOID in_buffer, ULONG in_size, PVOID out_buffer, ULONG out_size)
{
return unix_funcs->NtFsControlFile( handle, event, apc, apc_context, io, code,
in_buffer, in_size, out_buffer, out_size );
}
/******************************************************************************
* NtNotifyChangeDirectoryFile [NTDLL.@]
*/
NTSTATUS WINAPI NtNotifyChangeDirectoryFile( HANDLE handle, HANDLE event, PIO_APC_ROUTINE apc,
void *apc_context, PIO_STATUS_BLOCK iosb, void *buffer,
ULONG buffer_size, ULONG filter, BOOLEAN subtree )
{
return unix_funcs->NtNotifyChangeDirectoryFile( handle, event, apc, apc_context, iosb,
buffer, buffer_size, filter, subtree );
}
/******************************************************************************
* NtSetVolumeInformationFile [NTDLL.@]
* ZwSetVolumeInformationFile [NTDLL.@]
*/
NTSTATUS WINAPI NtSetVolumeInformationFile( HANDLE handle, IO_STATUS_BLOCK *io, void *info,
ULONG length, FS_INFORMATION_CLASS class )
{
return unix_funcs->NtSetVolumeInformationFile( handle, io, info, length, class );
}
NTSTATUS server_get_unix_name( HANDLE handle, ANSI_STRING *unix_name )
{
data_size_t size = 1024;
NTSTATUS ret;
char *name;
for (;;)
{
name = RtlAllocateHeap( GetProcessHeap(), 0, size + 1 );
if (!name) return STATUS_NO_MEMORY;
unix_name->MaximumLength = size + 1;
SERVER_START_REQ( get_handle_unix_name )
{
req->handle = wine_server_obj_handle( handle );
wine_server_set_reply( req, name, size );
ret = wine_server_call( req );
size = reply->name_len;
}
SERVER_END_REQ;
if (!ret)
{
name[size] = 0;
unix_name->Buffer = name;
unix_name->Length = size;
break;
}
RtlFreeHeap( GetProcessHeap(), 0, name );
if (ret != STATUS_BUFFER_OVERFLOW) break;
}
return ret;
}
/******************************************************************************
* NtQueryInformationFile [NTDLL.@]
* ZwQueryInformationFile [NTDLL.@]
*
* Get information about an open file handle.
*
* PARAMS
* hFile [I] Handle returned from ZwOpenFile() or ZwCreateFile()
* io [O] Receives information about the operation on return
* ptr [O] Destination for file information
* len [I] Size of FileInformation
* class [I] Type of file information to get
*
* RETURNS
* Success: 0. IoStatusBlock and FileInformation are updated.
* Failure: An NTSTATUS error code describing the error.
*/
NTSTATUS WINAPI NtQueryInformationFile( HANDLE hFile, PIO_STATUS_BLOCK io,
PVOID ptr, LONG len, FILE_INFORMATION_CLASS class )
{
return unix_funcs->NtQueryInformationFile( hFile, io, ptr, len, class );
}
/******************************************************************************
* NtSetInformationFile [NTDLL.@]
* ZwSetInformationFile [NTDLL.@]
*
* Set information about an open file handle.
*
* PARAMS
* handle [I] Handle returned from ZwOpenFile() or ZwCreateFile()
* io [O] Receives information about the operation on return
* ptr [I] Source for file information
* len [I] Size of FileInformation
* class [I] Type of file information to set
*
* RETURNS
* Success: 0. io is updated.
* Failure: An NTSTATUS error code describing the error.
*/
NTSTATUS WINAPI NtSetInformationFile(HANDLE handle, PIO_STATUS_BLOCK io,
PVOID ptr, ULONG len, FILE_INFORMATION_CLASS class)
{
return unix_funcs->NtSetInformationFile( handle, io, ptr, len, class );
}
/******************************************************************************
* NtQueryFullAttributesFile (NTDLL.@)
*/
NTSTATUS WINAPI NtQueryFullAttributesFile( const OBJECT_ATTRIBUTES *attr,
FILE_NETWORK_OPEN_INFORMATION *info )
{
return unix_funcs->NtQueryFullAttributesFile( attr, info );
}
/******************************************************************************
* NtQueryAttributesFile (NTDLL.@)
* ZwQueryAttributesFile (NTDLL.@)
*/
NTSTATUS WINAPI NtQueryAttributesFile( const OBJECT_ATTRIBUTES *attr, FILE_BASIC_INFORMATION *info )
{
return unix_funcs->NtQueryAttributesFile( attr, info );
}
/******************************************************************************
* NtQueryVolumeInformationFile [NTDLL.@]
* ZwQueryVolumeInformationFile [NTDLL.@]
*
* Get volume information for an open file handle.
*
* PARAMS
* handle [I] Handle returned from ZwOpenFile() or ZwCreateFile()
* io [O] Receives information about the operation on return
* buffer [O] Destination for volume information
* length [I] Size of FsInformation
* info_class [I] Type of volume information to set
*
* RETURNS
* Success: 0. io and buffer are updated.
* Failure: An NTSTATUS error code describing the error.
*/
NTSTATUS WINAPI NtQueryVolumeInformationFile( HANDLE handle, PIO_STATUS_BLOCK io,
PVOID buffer, ULONG length,
FS_INFORMATION_CLASS info_class )
{
return unix_funcs->NtQueryVolumeInformationFile( handle, io, buffer, length, info_class );
}
/******************************************************************
* NtQueryEaFile (NTDLL.@)
*
* Read extended attributes from NTFS files.
*
* PARAMS
* hFile [I] File handle, must be opened with FILE_READ_EA access
* iosb [O] Receives information about the operation on return
* buffer [O] Output buffer
* length [I] Length of output buffer
* single_entry [I] Only read and return one entry
* ea_list [I] Optional list with names of EAs to return
* ea_list_len [I] Length of ea_list in bytes
* ea_index [I] Optional pointer to 1-based index of attribute to return
* restart [I] restart EA scan
*
* RETURNS
* Success: 0. Attributes read into buffer
* Failure: An NTSTATUS error code describing the error.
*/
NTSTATUS WINAPI NtQueryEaFile( HANDLE hFile, PIO_STATUS_BLOCK iosb, PVOID buffer, ULONG length,
BOOLEAN single_entry, PVOID ea_list, ULONG ea_list_len,
PULONG ea_index, BOOLEAN restart )
{
FIXME("(%p,%p,%p,%d,%d,%p,%d,%p,%d) stub\n",
hFile, iosb, buffer, length, single_entry, ea_list,
ea_list_len, ea_index, restart);
return STATUS_ACCESS_DENIED;
}
/******************************************************************
* NtSetEaFile (NTDLL.@)
*
* Update extended attributes for NTFS files.
*
* PARAMS
* hFile [I] File handle, must be opened with FILE_READ_EA access
* iosb [O] Receives information about the operation on return
* buffer [I] Buffer with EA information
* length [I] Length of buffer
*
* RETURNS
* Success: 0. Attributes are updated
* Failure: An NTSTATUS error code describing the error.
*/
NTSTATUS WINAPI NtSetEaFile( HANDLE hFile, PIO_STATUS_BLOCK iosb, PVOID buffer, ULONG length )
{
FIXME("(%p,%p,%p,%d) stub\n", hFile, iosb, buffer, length);
return STATUS_ACCESS_DENIED;
}
/******************************************************************
* NtFlushBuffersFile (NTDLL.@)
*
* Flush any buffered data on an open file handle.
*
* PARAMS
* FileHandle [I] Handle returned from ZwOpenFile() or ZwCreateFile()
* IoStatusBlock [O] Receives information about the operation on return
*
* RETURNS
* Success: 0. IoStatusBlock is updated.
* Failure: An NTSTATUS error code describing the error.
*/
NTSTATUS WINAPI NtFlushBuffersFile( HANDLE hFile, IO_STATUS_BLOCK *io )
{
return unix_funcs->NtFlushBuffersFile( hFile, io );
}
/******************************************************************
* NtLockFile (NTDLL.@)
*
*
*/
NTSTATUS WINAPI NtLockFile( HANDLE hFile, HANDLE lock_granted_event,
PIO_APC_ROUTINE apc, void* apc_user,
PIO_STATUS_BLOCK io_status, PLARGE_INTEGER offset,
PLARGE_INTEGER count, ULONG* key, BOOLEAN dont_wait,
BOOLEAN exclusive )
{
NTSTATUS ret;
HANDLE handle;
BOOLEAN async;
static BOOLEAN warn = TRUE;
if (apc || io_status || key)
{
FIXME("Unimplemented yet parameter\n");
return STATUS_NOT_IMPLEMENTED;
}
if (apc_user && warn)
{
FIXME("I/O completion on lock not implemented yet\n");
warn = FALSE;
}
for (;;)
{
SERVER_START_REQ( lock_file )
{
req->handle = wine_server_obj_handle( hFile );
req->offset = offset->QuadPart;
req->count = count->QuadPart;
req->shared = !exclusive;
req->wait = !dont_wait;
ret = wine_server_call( req );
handle = wine_server_ptr_handle( reply->handle );
async = reply->overlapped;
}
SERVER_END_REQ;
if (ret != STATUS_PENDING)
{
if (!ret && lock_granted_event) NtSetEvent(lock_granted_event, NULL);
return ret;
}
if (async)
{
FIXME( "Async I/O lock wait not implemented, might deadlock\n" );
if (handle) NtClose( handle );
return STATUS_PENDING;
}
if (handle)
{
NtWaitForSingleObject( handle, FALSE, NULL );
NtClose( handle );
}
else
{
LARGE_INTEGER time;
/* Unix lock conflict, sleep a bit and retry */
time.QuadPart = 100 * (ULONGLONG)10000;
time.QuadPart = -time.QuadPart;
NtDelayExecution( FALSE, &time );
}
}
}
/******************************************************************
* NtUnlockFile (NTDLL.@)
*
*
*/
NTSTATUS WINAPI NtUnlockFile( HANDLE hFile, PIO_STATUS_BLOCK io_status,
PLARGE_INTEGER offset, PLARGE_INTEGER count,
PULONG key )
{
NTSTATUS status;
TRACE( "%p %x%08x %x%08x\n",
hFile, offset->u.HighPart, offset->u.LowPart, count->u.HighPart, count->u.LowPart );
if (io_status || key)
{
FIXME("Unimplemented yet parameter\n");
return STATUS_NOT_IMPLEMENTED;
}
SERVER_START_REQ( unlock_file )
{
req->handle = wine_server_obj_handle( hFile );
req->offset = offset->QuadPart;
req->count = count->QuadPart;
status = wine_server_call( req );
}
SERVER_END_REQ;
return status;
}
/******************************************************************
* NtCreateNamedPipeFile (NTDLL.@)
*/
NTSTATUS WINAPI NtCreateNamedPipeFile( PHANDLE handle, ULONG access,
POBJECT_ATTRIBUTES attr, PIO_STATUS_BLOCK iosb,
ULONG sharing, ULONG dispo, ULONG options,
ULONG pipe_type, ULONG read_mode,
ULONG completion_mode, ULONG max_inst,
ULONG inbound_quota, ULONG outbound_quota,
PLARGE_INTEGER timeout)
{
return unix_funcs->NtCreateNamedPipeFile( handle, access, attr, iosb, sharing, dispo, options,
pipe_type, read_mode, completion_mode, max_inst,
inbound_quota, outbound_quota, timeout );
}
/******************************************************************
* NtDeleteFile (NTDLL.@)
*/
NTSTATUS WINAPI NtDeleteFile( OBJECT_ATTRIBUTES *attr )
{
return unix_funcs->NtDeleteFile( attr );
}
/******************************************************************
* NtCancelIoFileEx (NTDLL.@)
*
*
*/
NTSTATUS WINAPI NtCancelIoFileEx( HANDLE hFile, PIO_STATUS_BLOCK iosb, PIO_STATUS_BLOCK io_status )
{
TRACE("%p %p %p\n", hFile, iosb, io_status );
SERVER_START_REQ( cancel_async )
{
req->handle = wine_server_obj_handle( hFile );
req->iosb = wine_server_client_ptr( iosb );
req->only_thread = FALSE;
io_status->u.Status = wine_server_call( req );
}
SERVER_END_REQ;
return io_status->u.Status;
}
/******************************************************************
* NtCancelIoFile (NTDLL.@)
*
*
*/
NTSTATUS WINAPI NtCancelIoFile( HANDLE hFile, PIO_STATUS_BLOCK io_status )
{
TRACE("%p %p\n", hFile, io_status );
SERVER_START_REQ( cancel_async )
{
req->handle = wine_server_obj_handle( hFile );
req->iosb = 0;
req->only_thread = TRUE;
io_status->u.Status = wine_server_call( req );
}
SERVER_END_REQ;
return io_status->u.Status;
}
/******************************************************************************
* NtCreateMailslotFile [NTDLL.@]
* ZwCreateMailslotFile [NTDLL.@]
*/
NTSTATUS WINAPI NtCreateMailslotFile( HANDLE *handle, ULONG access, OBJECT_ATTRIBUTES *attr,
IO_STATUS_BLOCK *io, ULONG options, ULONG quota, ULONG msg_size,
LARGE_INTEGER *timeout )
{
return unix_funcs->NtCreateMailslotFile( handle, access, attr, io, options, quota, msg_size, timeout );
}