519 lines
18 KiB
C
519 lines
18 KiB
C
/*
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* Object management functions
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*
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* Copyright 1999, 2000 Juergen Schmied
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* Copyright 2005 Vitaliy Margolen
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <stdarg.h>
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#include <stdlib.h>
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#include <string.h>
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#include "ntstatus.h"
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#define WIN32_NO_STATUS
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#include "wine/debug.h"
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#include "windef.h"
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#include "winternl.h"
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#include "ntdll_misc.h"
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#include "wine/server.h"
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#include "wine/exception.h"
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WINE_DEFAULT_DEBUG_CHANNEL(ntdll);
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/*
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* Generic object functions
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*/
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/******************************************************************************
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* NtQueryObject [NTDLL.@]
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* ZwQueryObject [NTDLL.@]
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*/
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NTSTATUS WINAPI NtQueryObject(IN HANDLE handle,
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IN OBJECT_INFORMATION_CLASS info_class,
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OUT PVOID ptr, IN ULONG len, OUT PULONG used_len)
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{
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return unix_funcs->NtQueryObject( handle, info_class, ptr, len, used_len );
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}
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/******************************************************************
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* NtSetInformationObject [NTDLL.@]
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* ZwSetInformationObject [NTDLL.@]
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*
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*/
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NTSTATUS WINAPI NtSetInformationObject(IN HANDLE handle,
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IN OBJECT_INFORMATION_CLASS info_class,
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IN PVOID ptr, IN ULONG len)
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{
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return unix_funcs->NtSetInformationObject( handle, info_class, ptr, len );
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}
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/******************************************************************************
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* NtQuerySecurityObject [NTDLL.@]
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*
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* An ntdll analogue to GetKernelObjectSecurity().
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*
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*/
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NTSTATUS WINAPI
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NtQuerySecurityObject(
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IN HANDLE Object,
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IN SECURITY_INFORMATION RequestedInformation,
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OUT PSECURITY_DESCRIPTOR pSecurityDescriptor,
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IN ULONG Length,
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OUT PULONG ResultLength)
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{
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PISECURITY_DESCRIPTOR_RELATIVE psd = pSecurityDescriptor;
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NTSTATUS status;
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unsigned int buffer_size = 512;
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BOOLEAN need_more_memory;
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TRACE("(%p,0x%08x,%p,0x%08x,%p)\n",
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Object, RequestedInformation, pSecurityDescriptor, Length, ResultLength);
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do
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{
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char *buffer = RtlAllocateHeap(GetProcessHeap(), 0, buffer_size);
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if (!buffer)
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return STATUS_NO_MEMORY;
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need_more_memory = FALSE;
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SERVER_START_REQ( get_security_object )
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{
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req->handle = wine_server_obj_handle( Object );
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req->security_info = RequestedInformation;
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wine_server_set_reply( req, buffer, buffer_size );
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status = wine_server_call( req );
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if (status == STATUS_SUCCESS)
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{
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struct security_descriptor *sd = (struct security_descriptor *)buffer;
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if (reply->sd_len)
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{
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*ResultLength = sizeof(SECURITY_DESCRIPTOR_RELATIVE) +
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sd->owner_len + sd->group_len + sd->sacl_len + sd->dacl_len;
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if (Length >= *ResultLength)
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{
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psd->Revision = SECURITY_DESCRIPTOR_REVISION;
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psd->Sbz1 = 0;
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psd->Control = sd->control | SE_SELF_RELATIVE;
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psd->Owner = sd->owner_len ? sizeof(SECURITY_DESCRIPTOR_RELATIVE) : 0;
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psd->Group = sd->group_len ? sizeof(SECURITY_DESCRIPTOR_RELATIVE) + sd->owner_len : 0;
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psd->Sacl = sd->sacl_len ? sizeof(SECURITY_DESCRIPTOR_RELATIVE) + sd->owner_len + sd->group_len : 0;
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psd->Dacl = sd->dacl_len ? sizeof(SECURITY_DESCRIPTOR_RELATIVE) + sd->owner_len + sd->group_len + sd->sacl_len : 0;
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/* owner, group, sacl and dacl are the same type as in the server
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* and in the same order so we copy the memory in one block */
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memcpy((char *)pSecurityDescriptor + sizeof(SECURITY_DESCRIPTOR_RELATIVE),
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buffer + sizeof(struct security_descriptor),
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sd->owner_len + sd->group_len + sd->sacl_len + sd->dacl_len);
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}
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else
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status = STATUS_BUFFER_TOO_SMALL;
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}
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else
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{
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*ResultLength = sizeof(SECURITY_DESCRIPTOR_RELATIVE);
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if (Length >= *ResultLength)
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{
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memset(psd, 0, sizeof(*psd));
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psd->Revision = SECURITY_DESCRIPTOR_REVISION;
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psd->Control = SE_SELF_RELATIVE;
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}
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else
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status = STATUS_BUFFER_TOO_SMALL;
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}
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}
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else if (status == STATUS_BUFFER_TOO_SMALL)
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{
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buffer_size = reply->sd_len;
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need_more_memory = TRUE;
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}
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}
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SERVER_END_REQ;
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RtlFreeHeap(GetProcessHeap(), 0, buffer);
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} while (need_more_memory);
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return status;
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}
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/******************************************************************************
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* NtDuplicateObject [NTDLL.@]
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* ZwDuplicateObject [NTDLL.@]
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*/
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NTSTATUS WINAPI NtDuplicateObject( HANDLE source_process, HANDLE source,
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HANDLE dest_process, PHANDLE dest,
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ACCESS_MASK access, ULONG attributes, ULONG options )
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{
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return unix_funcs->NtDuplicateObject( source_process, source, dest_process,
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dest, access, attributes, options );
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}
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static LONG WINAPI invalid_handle_exception_handler( EXCEPTION_POINTERS *eptr )
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{
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EXCEPTION_RECORD *rec = eptr->ExceptionRecord;
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return (rec->ExceptionCode == EXCEPTION_INVALID_HANDLE) ? EXCEPTION_EXECUTE_HANDLER : EXCEPTION_CONTINUE_SEARCH;
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}
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/* Everquest 2 / Pirates of the Burning Sea hooks NtClose, so we need a wrapper */
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NTSTATUS close_handle( HANDLE handle )
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{
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DWORD_PTR debug_port;
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NTSTATUS ret = unix_funcs->NtClose( handle );
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if (ret == STATUS_INVALID_HANDLE && handle && NtCurrentTeb()->Peb->BeingDebugged &&
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!NtQueryInformationProcess( NtCurrentProcess(), ProcessDebugPort, &debug_port,
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sizeof(debug_port), NULL) && debug_port)
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{
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__TRY
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{
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EXCEPTION_RECORD record;
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record.ExceptionCode = EXCEPTION_INVALID_HANDLE;
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record.ExceptionFlags = 0;
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record.ExceptionRecord = NULL;
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record.ExceptionAddress = NULL;
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record.NumberParameters = 0;
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RtlRaiseException( &record );
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}
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__EXCEPT(invalid_handle_exception_handler)
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{
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}
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__ENDTRY
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}
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return ret;
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}
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/**************************************************************************
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* NtClose [NTDLL.@]
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*
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* Close a handle reference to an object.
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*
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* PARAMS
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* Handle [I] handle to close
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*
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* RETURNS
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* Success: ERROR_SUCCESS.
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* Failure: An NTSTATUS error code.
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*/
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NTSTATUS WINAPI NtClose( HANDLE Handle )
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{
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return close_handle( Handle );
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}
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/*
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* Directory functions
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*/
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/**************************************************************************
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* NtOpenDirectoryObject [NTDLL.@]
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* ZwOpenDirectoryObject [NTDLL.@]
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*
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* Open a namespace directory object.
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*
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* PARAMS
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* DirectoryHandle [O] Destination for the new directory handle
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* DesiredAccess [I] Desired access to the directory
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* ObjectAttributes [I] Structure describing the directory
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*
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* RETURNS
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* Success: ERROR_SUCCESS.
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* Failure: An NTSTATUS error code.
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*/
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NTSTATUS WINAPI NtOpenDirectoryObject( HANDLE *handle, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr)
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{
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NTSTATUS ret;
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if (!handle) return STATUS_ACCESS_VIOLATION;
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if ((ret = validate_open_object_attributes( attr ))) return ret;
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TRACE("(%p,0x%08x,%s)\n", handle, access, debugstr_ObjectAttributes(attr));
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SERVER_START_REQ(open_directory)
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{
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req->access = access;
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req->attributes = attr->Attributes;
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req->rootdir = wine_server_obj_handle( attr->RootDirectory );
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if (attr->ObjectName)
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wine_server_add_data( req, attr->ObjectName->Buffer, attr->ObjectName->Length );
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ret = wine_server_call( req );
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*handle = wine_server_ptr_handle( reply->handle );
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}
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SERVER_END_REQ;
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return ret;
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}
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/******************************************************************************
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* NtCreateDirectoryObject [NTDLL.@]
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* ZwCreateDirectoryObject [NTDLL.@]
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*
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* Create a namespace directory object.
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*
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* PARAMS
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* DirectoryHandle [O] Destination for the new directory handle
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* DesiredAccess [I] Desired access to the directory
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* ObjectAttributes [I] Structure describing the directory
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*
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* RETURNS
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* Success: ERROR_SUCCESS.
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* Failure: An NTSTATUS error code.
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*/
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NTSTATUS WINAPI NtCreateDirectoryObject(PHANDLE DirectoryHandle, ACCESS_MASK DesiredAccess,
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OBJECT_ATTRIBUTES *attr )
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{
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NTSTATUS ret;
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data_size_t len;
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struct object_attributes *objattr;
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if (!DirectoryHandle) return STATUS_ACCESS_VIOLATION;
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TRACE("(%p,0x%08x,%s)\n", DirectoryHandle, DesiredAccess, debugstr_ObjectAttributes(attr));
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if ((ret = alloc_object_attributes( attr, &objattr, &len ))) return ret;
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SERVER_START_REQ(create_directory)
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{
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req->access = DesiredAccess;
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wine_server_add_data( req, objattr, len );
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ret = wine_server_call( req );
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*DirectoryHandle = wine_server_ptr_handle( reply->handle );
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}
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SERVER_END_REQ;
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RtlFreeHeap( GetProcessHeap(), 0, objattr );
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return ret;
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}
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/******************************************************************************
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* NtQueryDirectoryObject [NTDLL.@]
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* ZwQueryDirectoryObject [NTDLL.@]
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*
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* Read information from a namespace directory.
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*
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* PARAMS
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* handle [I] Handle to a directory object
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* buffer [O] Buffer to hold the read data
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* size [I] Size of the buffer in bytes
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* single_entry [I] If TRUE, return a single entry, if FALSE, return as many as fit in the buffer
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* restart [I] If TRUE, start scanning from the start, if FALSE, scan from Context
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* context [I/O] Indicates what point of the directory the scan is at
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* ret_size [O] Caller supplied storage for the number of bytes written (or NULL)
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*
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* RETURNS
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* Success: ERROR_SUCCESS.
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* Failure: An NTSTATUS error code.
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*/
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NTSTATUS WINAPI NtQueryDirectoryObject(HANDLE handle, PDIRECTORY_BASIC_INFORMATION buffer,
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ULONG size, BOOLEAN single_entry, BOOLEAN restart,
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PULONG context, PULONG ret_size)
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{
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NTSTATUS ret;
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if (restart) *context = 0;
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if (single_entry)
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{
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if (size <= sizeof(*buffer) + 2*sizeof(WCHAR)) return STATUS_BUFFER_OVERFLOW;
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SERVER_START_REQ( get_directory_entry )
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{
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req->handle = wine_server_obj_handle( handle );
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req->index = *context;
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wine_server_set_reply( req, buffer + 1, size - sizeof(*buffer) - 2*sizeof(WCHAR) );
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if (!(ret = wine_server_call( req )))
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{
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buffer->ObjectName.Buffer = (WCHAR *)(buffer + 1);
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buffer->ObjectName.Length = reply->name_len;
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buffer->ObjectName.MaximumLength = reply->name_len + sizeof(WCHAR);
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buffer->ObjectTypeName.Buffer = (WCHAR *)(buffer + 1) + reply->name_len/sizeof(WCHAR) + 1;
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buffer->ObjectTypeName.Length = wine_server_reply_size( reply ) - reply->name_len;
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buffer->ObjectTypeName.MaximumLength = buffer->ObjectTypeName.Length + sizeof(WCHAR);
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/* make room for the terminating null */
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memmove( buffer->ObjectTypeName.Buffer, buffer->ObjectTypeName.Buffer - 1,
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buffer->ObjectTypeName.Length );
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buffer->ObjectName.Buffer[buffer->ObjectName.Length/sizeof(WCHAR)] = 0;
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buffer->ObjectTypeName.Buffer[buffer->ObjectTypeName.Length/sizeof(WCHAR)] = 0;
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(*context)++;
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}
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}
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SERVER_END_REQ;
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if (ret_size)
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*ret_size = buffer->ObjectName.MaximumLength + buffer->ObjectTypeName.MaximumLength + sizeof(*buffer);
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}
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else
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{
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FIXME("multiple entries not implemented\n");
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ret = STATUS_NOT_IMPLEMENTED;
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}
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return ret;
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}
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/*
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* Link objects
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*/
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/******************************************************************************
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* NtOpenSymbolicLinkObject [NTDLL.@]
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* ZwOpenSymbolicLinkObject [NTDLL.@]
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*
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* Open a namespace symbolic link object.
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*
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* PARAMS
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* LinkHandle [O] Destination for the new symbolic link handle
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* DesiredAccess [I] Desired access to the symbolic link
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* ObjectAttributes [I] Structure describing the symbolic link
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*
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* RETURNS
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* Success: ERROR_SUCCESS.
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* Failure: An NTSTATUS error code.
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*/
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NTSTATUS WINAPI NtOpenSymbolicLinkObject( HANDLE *handle, ACCESS_MASK access,
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const OBJECT_ATTRIBUTES *attr)
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{
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NTSTATUS ret;
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TRACE("(%p,0x%08x,%s)\n", handle, access, debugstr_ObjectAttributes(attr));
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if (!handle) return STATUS_ACCESS_VIOLATION;
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if ((ret = validate_open_object_attributes( attr ))) return ret;
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SERVER_START_REQ(open_symlink)
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{
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req->access = access;
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req->attributes = attr->Attributes;
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req->rootdir = wine_server_obj_handle( attr->RootDirectory );
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if (attr->ObjectName)
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wine_server_add_data( req, attr->ObjectName->Buffer, attr->ObjectName->Length );
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ret = wine_server_call( req );
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*handle = wine_server_ptr_handle( reply->handle );
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}
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SERVER_END_REQ;
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return ret;
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}
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/******************************************************************************
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* NtCreateSymbolicLinkObject [NTDLL.@]
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* ZwCreateSymbolicLinkObject [NTDLL.@]
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*
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* Open a namespace symbolic link object.
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*
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* PARAMS
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* SymbolicLinkHandle [O] Destination for the new symbolic link handle
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* DesiredAccess [I] Desired access to the symbolic link
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* ObjectAttributes [I] Structure describing the symbolic link
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* TargetName [I] Name of the target symbolic link points to
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*
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* RETURNS
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* Success: ERROR_SUCCESS.
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* Failure: An NTSTATUS error code.
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*/
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NTSTATUS WINAPI NtCreateSymbolicLinkObject(OUT PHANDLE SymbolicLinkHandle,IN ACCESS_MASK DesiredAccess,
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POBJECT_ATTRIBUTES attr, PUNICODE_STRING TargetName)
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{
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NTSTATUS ret;
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data_size_t len;
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struct object_attributes *objattr;
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if (!SymbolicLinkHandle || !attr || !TargetName) return STATUS_ACCESS_VIOLATION;
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if (!TargetName->Buffer) return STATUS_INVALID_PARAMETER;
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TRACE("(%p,0x%08x,%s -> %s)\n", SymbolicLinkHandle, DesiredAccess,
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debugstr_ObjectAttributes(attr), debugstr_us(TargetName));
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if ((ret = alloc_object_attributes( attr, &objattr, &len ))) return ret;
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SERVER_START_REQ(create_symlink)
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{
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req->access = DesiredAccess;
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wine_server_add_data( req, objattr, len );
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wine_server_add_data(req, TargetName->Buffer, TargetName->Length);
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ret = wine_server_call( req );
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*SymbolicLinkHandle = wine_server_ptr_handle( reply->handle );
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}
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SERVER_END_REQ;
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RtlFreeHeap( GetProcessHeap(), 0, objattr );
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return ret;
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}
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/******************************************************************************
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* NtQuerySymbolicLinkObject [NTDLL.@]
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* ZwQuerySymbolicLinkObject [NTDLL.@]
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*
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* Query a namespace symbolic link object target name.
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*
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* PARAMS
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* handle [I] Handle to a symbolic link object
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* target [O] Destination for the symbolic link target
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* length [O] Size of returned data
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*
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* RETURNS
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* Success: ERROR_SUCCESS.
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* Failure: An NTSTATUS error code.
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*/
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NTSTATUS WINAPI NtQuerySymbolicLinkObject( HANDLE handle, PUNICODE_STRING target, PULONG length )
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{
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NTSTATUS ret;
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TRACE("(%p,%p,%p)\n", handle, target, length );
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if (!target) return STATUS_ACCESS_VIOLATION;
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SERVER_START_REQ(query_symlink)
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{
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req->handle = wine_server_obj_handle( handle );
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if (target->MaximumLength >= sizeof(WCHAR))
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wine_server_set_reply( req, target->Buffer, target->MaximumLength - sizeof(WCHAR) );
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if (!(ret = wine_server_call( req )))
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{
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target->Length = wine_server_reply_size(reply);
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target->Buffer[target->Length / sizeof(WCHAR)] = 0;
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if (length) *length = reply->total + sizeof(WCHAR);
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}
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else if (length && ret == STATUS_BUFFER_TOO_SMALL) *length = reply->total + sizeof(WCHAR);
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}
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SERVER_END_REQ;
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return ret;
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}
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/******************************************************************************
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* NtAllocateUuids [NTDLL.@]
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*/
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NTSTATUS WINAPI NtAllocateUuids( ULARGE_INTEGER *time, ULONG *delta, ULONG *sequence, UCHAR *seed )
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{
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FIXME("(%p,%p,%p,%p), stub.\n", time, delta, sequence, seed);
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return STATUS_SUCCESS;
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}
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/**************************************************************************
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* NtMakeTemporaryObject [NTDLL.@]
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* ZwMakeTemporaryObject [NTDLL.@]
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*
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* Make a permanent object temporary.
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*
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* PARAMS
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|
* 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;
|
|
}
|