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wine/dlls/ntdll/om.c
Michael Stefaniuc d2f6f56873 ntdll: Remove superfluous pointer casts.
2009-03-23 12:40:53 +01:00

635 lines
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/*
* Object management functions
*
* Copyright 1999, 2000 Juergen Schmied
* Copyright 2005 Vitaliy Margolen
*
* 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 "config.h"
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_IO_H
# include <io.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "wine/debug.h"
#include "windef.h"
#include "winternl.h"
#include "ntdll_misc.h"
#include "wine/server.h"
WINE_DEFAULT_DEBUG_CHANNEL(ntdll);
/*
* Generic object functions
*/
/******************************************************************************
* NtQueryObject [NTDLL.@]
* ZwQueryObject [NTDLL.@]
*/
NTSTATUS WINAPI NtQueryObject(IN HANDLE handle,
IN OBJECT_INFORMATION_CLASS info_class,
OUT PVOID ptr, IN ULONG len, OUT PULONG used_len)
{
NTSTATUS status;
TRACE("(%p,0x%08x,%p,0x%08x,%p): stub\n",
handle, info_class, ptr, len, used_len);
if (used_len) *used_len = 0;
switch (info_class)
{
case ObjectBasicInformation:
{
POBJECT_BASIC_INFORMATION p = ptr;
if (len < sizeof(*p)) return STATUS_INVALID_BUFFER_SIZE;
SERVER_START_REQ( get_object_info )
{
req->handle = wine_server_obj_handle( handle );
status = wine_server_call( req );
if (status == STATUS_SUCCESS)
{
memset( p, 0, sizeof(*p) );
p->GrantedAccess = reply->access;
p->PointerCount = reply->ref_count;
p->HandleCount = 1; /* at least one */
if (used_len) *used_len = sizeof(*p);
}
}
SERVER_END_REQ;
}
break;
case ObjectDataInformation:
{
OBJECT_DATA_INFORMATION* p = ptr;
if (len < sizeof(*p)) return STATUS_INVALID_BUFFER_SIZE;
SERVER_START_REQ( set_handle_info )
{
req->handle = wine_server_obj_handle( handle );
req->flags = 0;
req->mask = 0;
status = wine_server_call( req );
if (status == STATUS_SUCCESS)
{
p->InheritHandle = (reply->old_flags & HANDLE_FLAG_INHERIT) ? TRUE : FALSE;
p->ProtectFromClose = (reply->old_flags & HANDLE_FLAG_PROTECT_FROM_CLOSE) ? TRUE : FALSE;
if (used_len) *used_len = sizeof(*p);
}
}
SERVER_END_REQ;
}
break;
default:
FIXME("Unsupported information class %u\n", info_class);
status = STATUS_NOT_IMPLEMENTED;
break;
}
return status;
}
/******************************************************************
* NtSetInformationObject [NTDLL.@]
* ZwSetInformationObject [NTDLL.@]
*
*/
NTSTATUS WINAPI NtSetInformationObject(IN HANDLE handle,
IN OBJECT_INFORMATION_CLASS info_class,
IN PVOID ptr, IN ULONG len)
{
NTSTATUS status;
TRACE("(%p,0x%08x,%p,0x%08x): stub\n",
handle, info_class, ptr, len);
switch (info_class)
{
case ObjectDataInformation:
{
OBJECT_DATA_INFORMATION* p = ptr;
if (len < sizeof(*p)) return STATUS_INVALID_BUFFER_SIZE;
SERVER_START_REQ( set_handle_info )
{
req->handle = wine_server_obj_handle( handle );
req->flags = 0;
req->mask = HANDLE_FLAG_INHERIT | HANDLE_FLAG_PROTECT_FROM_CLOSE;
if (p->InheritHandle) req->flags |= HANDLE_FLAG_INHERIT;
if (p->ProtectFromClose) req->flags |= HANDLE_FLAG_PROTECT_FROM_CLOSE;
status = wine_server_call( req );
}
SERVER_END_REQ;
}
break;
default:
FIXME("Unsupported information class %u\n", info_class);
status = STATUS_NOT_IMPLEMENTED;
break;
}
return status;
}
/******************************************************************************
* NtQuerySecurityObject [NTDLL.@]
*
* An ntdll analogue to GetKernelObjectSecurity().
*
*/
NTSTATUS WINAPI
NtQuerySecurityObject(
IN HANDLE Object,
IN SECURITY_INFORMATION RequestedInformation,
OUT PSECURITY_DESCRIPTOR pSecurityDescriptor,
IN ULONG Length,
OUT PULONG ResultLength)
{
PISECURITY_DESCRIPTOR_RELATIVE psd = pSecurityDescriptor;
NTSTATUS status;
unsigned int buffer_size = 512;
BOOLEAN need_more_memory;
TRACE("(%p,0x%08x,%p,0x%08x,%p)\n",
Object, RequestedInformation, pSecurityDescriptor, Length, ResultLength);
do
{
char *buffer = RtlAllocateHeap(GetProcessHeap(), 0, buffer_size);
if (!buffer)
return STATUS_NO_MEMORY;
need_more_memory = FALSE;
SERVER_START_REQ( get_security_object )
{
req->handle = wine_server_obj_handle( Object );
req->security_info = RequestedInformation;
wine_server_set_reply( req, buffer, buffer_size );
status = wine_server_call( req );
if (status == STATUS_SUCCESS)
{
struct security_descriptor *sd = (struct security_descriptor *)buffer;
if (reply->sd_len)
{
*ResultLength = sizeof(SECURITY_DESCRIPTOR_RELATIVE) +
sd->owner_len + sd->group_len + sd->sacl_len + sd->dacl_len;
if (Length >= *ResultLength)
{
psd->Revision = SECURITY_DESCRIPTOR_REVISION;
psd->Sbz1 = 0;
psd->Control = sd->control | SE_SELF_RELATIVE;
psd->Owner = sd->owner_len ? sizeof(SECURITY_DESCRIPTOR_RELATIVE) : 0;
psd->Group = sd->group_len ? sizeof(SECURITY_DESCRIPTOR_RELATIVE) + sd->owner_len : 0;
psd->Sacl = sd->sacl_len ? sizeof(SECURITY_DESCRIPTOR_RELATIVE) + sd->owner_len + sd->group_len : 0;
psd->Dacl = sd->dacl_len ? sizeof(SECURITY_DESCRIPTOR_RELATIVE) + sd->owner_len + sd->group_len + sd->sacl_len : 0;
/* owner, group, sacl and dacl are the same type as in the server
* and in the same order so we copy the memory in one block */
memcpy((char *)pSecurityDescriptor + sizeof(SECURITY_DESCRIPTOR_RELATIVE),
buffer + sizeof(struct security_descriptor),
sd->owner_len + sd->group_len + sd->sacl_len + sd->dacl_len);
}
else
status = STATUS_BUFFER_TOO_SMALL;
}
else
{
*ResultLength = sizeof(SECURITY_DESCRIPTOR_RELATIVE);
if (Length >= *ResultLength)
{
memset(psd, 0, sizeof(*psd));
psd->Revision = SECURITY_DESCRIPTOR_REVISION;
psd->Control = SE_SELF_RELATIVE;
}
else
status = STATUS_BUFFER_TOO_SMALL;
}
}
else if (status == STATUS_BUFFER_TOO_SMALL)
{
buffer_size = reply->sd_len;
need_more_memory = TRUE;
}
}
SERVER_END_REQ;
RtlFreeHeap(GetProcessHeap(), 0, buffer);
} while (need_more_memory);
return status;
}
/******************************************************************************
* NtDuplicateObject [NTDLL.@]
* ZwDuplicateObject [NTDLL.@]
*/
NTSTATUS WINAPI NtDuplicateObject( HANDLE source_process, HANDLE source,
HANDLE dest_process, PHANDLE dest,
ACCESS_MASK access, ULONG attributes, ULONG options )
{
NTSTATUS ret;
SERVER_START_REQ( dup_handle )
{
req->src_process = wine_server_obj_handle( source_process );
req->src_handle = wine_server_obj_handle( source );
req->dst_process = wine_server_obj_handle( dest_process );
req->access = access;
req->attributes = attributes;
req->options = options;
if (!(ret = wine_server_call( req )))
{
if (dest) *dest = wine_server_ptr_handle( reply->handle );
if (reply->closed)
{
if (reply->self)
{
int fd = server_remove_fd_from_cache( source );
if (fd != -1) close( fd );
}
}
else if (options & DUPLICATE_CLOSE_SOURCE)
WARN( "failed to close handle %p in process %p\n", source, source_process );
}
}
SERVER_END_REQ;
return ret;
}
/**************************************************************************
* NtClose [NTDLL.@]
*
* Close a handle reference to an object.
*
* PARAMS
* Handle [I] handle to close
*
* RETURNS
* Success: ERROR_SUCCESS.
* Failure: An NTSTATUS error code.
*/
NTSTATUS WINAPI NtClose( HANDLE Handle )
{
NTSTATUS ret;
int fd = server_remove_fd_from_cache( Handle );
SERVER_START_REQ( close_handle )
{
req->handle = wine_server_obj_handle( Handle );
ret = wine_server_call( req );
}
SERVER_END_REQ;
if (fd != -1) close( fd );
return ret;
}
/*
* Directory functions
*/
/**************************************************************************
* NtOpenDirectoryObject [NTDLL.@]
* ZwOpenDirectoryObject [NTDLL.@]
*
* Open a namespace directory object.
*
* PARAMS
* DirectoryHandle [O] Destination for the new directory handle
* DesiredAccess [I] Desired access to the directory
* ObjectAttributes [I] Structure describing the directory
*
* RETURNS
* Success: ERROR_SUCCESS.
* Failure: An NTSTATUS error code.
*/
NTSTATUS WINAPI NtOpenDirectoryObject(PHANDLE DirectoryHandle, ACCESS_MASK DesiredAccess,
POBJECT_ATTRIBUTES ObjectAttributes)
{
NTSTATUS ret;
TRACE("(%p,0x%08x,%s)\n", DirectoryHandle, DesiredAccess, debugstr_ObjectAttributes(ObjectAttributes));
if (!DirectoryHandle) return STATUS_ACCESS_VIOLATION;
if (!ObjectAttributes) return STATUS_INVALID_PARAMETER;
/* Have to test it here because server won't know difference between
* ObjectName == NULL and ObjectName == "" */
if (!ObjectAttributes->ObjectName)
{
if (ObjectAttributes->RootDirectory)
return STATUS_OBJECT_NAME_INVALID;
else
return STATUS_OBJECT_PATH_SYNTAX_BAD;
}
SERVER_START_REQ(open_directory)
{
req->access = DesiredAccess;
req->attributes = ObjectAttributes->Attributes;
req->rootdir = wine_server_obj_handle( ObjectAttributes->RootDirectory );
if (ObjectAttributes->ObjectName)
wine_server_add_data(req, ObjectAttributes->ObjectName->Buffer,
ObjectAttributes->ObjectName->Length);
ret = wine_server_call( req );
*DirectoryHandle = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
return ret;
}
/******************************************************************************
* NtCreateDirectoryObject [NTDLL.@]
* ZwCreateDirectoryObject [NTDLL.@]
*
* Create a namespace directory object.
*
* PARAMS
* DirectoryHandle [O] Destination for the new directory handle
* DesiredAccess [I] Desired access to the directory
* ObjectAttributes [I] Structure describing the directory
*
* RETURNS
* Success: ERROR_SUCCESS.
* Failure: An NTSTATUS error code.
*/
NTSTATUS WINAPI NtCreateDirectoryObject(PHANDLE DirectoryHandle, ACCESS_MASK DesiredAccess,
POBJECT_ATTRIBUTES ObjectAttributes)
{
NTSTATUS ret;
TRACE("(%p,0x%08x,%s)\n", DirectoryHandle, DesiredAccess, debugstr_ObjectAttributes(ObjectAttributes));
if (!DirectoryHandle) return STATUS_ACCESS_VIOLATION;
SERVER_START_REQ(create_directory)
{
req->access = DesiredAccess;
req->attributes = ObjectAttributes ? ObjectAttributes->Attributes : 0;
req->rootdir = wine_server_obj_handle( ObjectAttributes ? ObjectAttributes->RootDirectory : 0 );
if (ObjectAttributes && ObjectAttributes->ObjectName)
wine_server_add_data(req, ObjectAttributes->ObjectName->Buffer,
ObjectAttributes->ObjectName->Length);
ret = wine_server_call( req );
*DirectoryHandle = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
return ret;
}
/******************************************************************************
* NtQueryDirectoryObject [NTDLL.@]
* ZwQueryDirectoryObject [NTDLL.@]
*
* Read information from a namespace directory.
*
* PARAMS
* handle [I] Handle to a directory object
* buffer [O] Buffer to hold the read data
* size [I] Size of the buffer in bytes
* single_entry [I] If TRUE, return a single entry, if FALSE, return as many as fit in the buffer
* restart [I] If TRUE, start scanning from the start, if FALSE, scan from Context
* context [I/O] Indicates what point of the directory the scan is at
* ret_size [O] Caller supplied storage for the number of bytes written (or NULL)
*
* RETURNS
* Success: ERROR_SUCCESS.
* Failure: An NTSTATUS error code.
*/
NTSTATUS WINAPI NtQueryDirectoryObject(HANDLE handle, PDIRECTORY_BASIC_INFORMATION buffer,
ULONG size, BOOLEAN single_entry, BOOLEAN restart,
PULONG context, PULONG ret_size)
{
NTSTATUS ret;
if (restart) *context = 0;
if (single_entry)
{
if (size <= sizeof(*buffer) + 2*sizeof(WCHAR)) return STATUS_BUFFER_OVERFLOW;
SERVER_START_REQ( get_directory_entry )
{
req->handle = wine_server_obj_handle( handle );
req->index = *context;
wine_server_set_reply( req, buffer + 1, size - sizeof(*buffer) - 2*sizeof(WCHAR) );
if (!(ret = wine_server_call( req )))
{
buffer->ObjectName.Buffer = (WCHAR *)(buffer + 1);
buffer->ObjectName.Length = reply->name_len;
buffer->ObjectName.MaximumLength = reply->name_len + sizeof(WCHAR);
buffer->ObjectTypeName.Buffer = (WCHAR *)(buffer + 1) + reply->name_len/sizeof(WCHAR) + 1;
buffer->ObjectTypeName.Length = wine_server_reply_size( reply ) - reply->name_len;
buffer->ObjectTypeName.MaximumLength = buffer->ObjectTypeName.Length + sizeof(WCHAR);
/* make room for the terminating null */
memmove( buffer->ObjectTypeName.Buffer, buffer->ObjectTypeName.Buffer - 1,
buffer->ObjectTypeName.Length );
buffer->ObjectName.Buffer[buffer->ObjectName.Length/sizeof(WCHAR)] = 0;
buffer->ObjectTypeName.Buffer[buffer->ObjectTypeName.Length/sizeof(WCHAR)] = 0;
(*context)++;
}
}
SERVER_END_REQ;
if (ret_size)
*ret_size = buffer->ObjectName.MaximumLength + buffer->ObjectTypeName.MaximumLength + sizeof(*buffer);
}
else
{
FIXME("multiple entries not implemented\n");
ret = STATUS_NOT_IMPLEMENTED;
}
return ret;
}
/*
* Link objects
*/
/******************************************************************************
* NtOpenSymbolicLinkObject [NTDLL.@]
* ZwOpenSymbolicLinkObject [NTDLL.@]
*
* Open a namespace symbolic link object.
*
* PARAMS
* LinkHandle [O] Destination for the new symbolic link handle
* DesiredAccess [I] Desired access to the symbolic link
* ObjectAttributes [I] Structure describing the symbolic link
*
* RETURNS
* Success: ERROR_SUCCESS.
* Failure: An NTSTATUS error code.
*/
NTSTATUS WINAPI NtOpenSymbolicLinkObject(OUT PHANDLE LinkHandle, IN ACCESS_MASK DesiredAccess,
IN POBJECT_ATTRIBUTES ObjectAttributes)
{
NTSTATUS ret;
TRACE("(%p,0x%08x,%s)\n",LinkHandle, DesiredAccess, debugstr_ObjectAttributes(ObjectAttributes));
if (!LinkHandle) return STATUS_ACCESS_VIOLATION;
if (!ObjectAttributes) return STATUS_INVALID_PARAMETER;
/* Have to test it here because server won't know difference between
* ObjectName == NULL and ObjectName == "" */
if (!ObjectAttributes->ObjectName)
{
if (ObjectAttributes->RootDirectory)
return STATUS_OBJECT_NAME_INVALID;
else
return STATUS_OBJECT_PATH_SYNTAX_BAD;
}
SERVER_START_REQ(open_symlink)
{
req->access = DesiredAccess;
req->attributes = ObjectAttributes->Attributes;
req->rootdir = wine_server_obj_handle( ObjectAttributes->RootDirectory );
if (ObjectAttributes->ObjectName)
wine_server_add_data(req, ObjectAttributes->ObjectName->Buffer,
ObjectAttributes->ObjectName->Length);
ret = wine_server_call( req );
*LinkHandle = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
return ret;
}
/******************************************************************************
* NtCreateSymbolicLinkObject [NTDLL.@]
* ZwCreateSymbolicLinkObject [NTDLL.@]
*
* Open a namespace symbolic link object.
*
* PARAMS
* SymbolicLinkHandle [O] Destination for the new symbolic link handle
* DesiredAccess [I] Desired access to the symbolic link
* ObjectAttributes [I] Structure describing the symbolic link
* TargetName [I] Name of the target symbolic link points to
*
* RETURNS
* Success: ERROR_SUCCESS.
* Failure: An NTSTATUS error code.
*/
NTSTATUS WINAPI NtCreateSymbolicLinkObject(OUT PHANDLE SymbolicLinkHandle,IN ACCESS_MASK DesiredAccess,
IN POBJECT_ATTRIBUTES ObjectAttributes,
IN PUNICODE_STRING TargetName)
{
NTSTATUS ret;
if (!SymbolicLinkHandle || !TargetName) return STATUS_ACCESS_VIOLATION;
if (!TargetName->Buffer) return STATUS_INVALID_PARAMETER;
TRACE("(%p,0x%08x,%s -> %s)\n", SymbolicLinkHandle, DesiredAccess,
debugstr_ObjectAttributes(ObjectAttributes), debugstr_us(TargetName));
SERVER_START_REQ(create_symlink)
{
req->access = DesiredAccess;
req->attributes = ObjectAttributes ? ObjectAttributes->Attributes : 0;
req->rootdir = wine_server_obj_handle( ObjectAttributes ? ObjectAttributes->RootDirectory : 0 );
if (ObjectAttributes && ObjectAttributes->ObjectName)
{
req->name_len = ObjectAttributes->ObjectName->Length;
wine_server_add_data(req, ObjectAttributes->ObjectName->Buffer,
ObjectAttributes->ObjectName->Length);
}
else
req->name_len = 0;
wine_server_add_data(req, TargetName->Buffer, TargetName->Length);
ret = wine_server_call( req );
*SymbolicLinkHandle = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
return ret;
}
/******************************************************************************
* NtQuerySymbolicLinkObject [NTDLL.@]
* ZwQuerySymbolicLinkObject [NTDLL.@]
*
* Query a namespace symbolic link object target name.
*
* PARAMS
* LinkHandle [I] Handle to a symbolic link object
* LinkTarget [O] Destination for the symbolic link target
* ReturnedLength [O] Size of returned data
*
* RETURNS
* Success: ERROR_SUCCESS.
* Failure: An NTSTATUS error code.
*/
NTSTATUS WINAPI NtQuerySymbolicLinkObject(IN HANDLE LinkHandle, IN OUT PUNICODE_STRING LinkTarget,
OUT PULONG ReturnedLength OPTIONAL)
{
NTSTATUS ret;
TRACE("(%p,%p,%p)\n", LinkHandle, LinkTarget, ReturnedLength);
if (!LinkTarget) return STATUS_ACCESS_VIOLATION;
SERVER_START_REQ(query_symlink)
{
req->handle = wine_server_obj_handle( LinkHandle );
wine_server_set_reply( req, LinkTarget->Buffer, LinkTarget->MaximumLength );
if (!(ret = wine_server_call( req )))
{
LinkTarget->Length = wine_server_reply_size(reply);
if (ReturnedLength) *ReturnedLength = LinkTarget->Length;
}
}
SERVER_END_REQ;
return ret;
}
/******************************************************************************
* NtAllocateUuids [NTDLL.@]
*/
NTSTATUS WINAPI NtAllocateUuids(
PULARGE_INTEGER Time,
PULONG Range,
PULONG Sequence)
{
FIXME("(%p,%p,%p), stub.\n", Time, Range, Sequence);
return 0;
}
/**************************************************************************
* NtMakeTemporaryObject [NTDLL.@]
* ZwMakeTemporaryObject [NTDLL.@]
*
* Make a permanent object temporary.
*
* PARAMS
* Handle [I] handle to permanent object
*
* RETURNS
* Success: STATUS_SUCCESS.
* Failure: An NTSTATUS error code.
*/
NTSTATUS WINAPI NtMakeTemporaryObject( HANDLE Handle )
{
FIXME("(%p), stub.\n", Handle);
return STATUS_SUCCESS;
}
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