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Sweden-Number/dlls/ntdll/process.c

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/*
* NT process handling
*
* Copyright 1996-1998 Marcus Meissner
* Copyright 2018 Alexandre Julliard
*
* 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 <errno.h>
#include <fcntl.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <sys/types.h>
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "wine/debug.h"
#include "windef.h"
#include "winternl.h"
#include "ntdll_misc.h"
#include "wine/exception.h"
WINE_DEFAULT_DEBUG_CHANNEL(process);
/******************************************************************************
* RtlGetCurrentPeb [NTDLL.@]
*
*/
PEB * WINAPI RtlGetCurrentPeb(void)
{
return NtCurrentTeb()->Peb;
}
/******************************************************************
* RtlWow64EnableFsRedirection (NTDLL.@)
*/
NTSTATUS WINAPI RtlWow64EnableFsRedirection( BOOLEAN enable )
{
if (!NtCurrentTeb64()) return STATUS_NOT_IMPLEMENTED;
NtCurrentTeb64()->TlsSlots[WOW64_TLS_FILESYSREDIR] = !enable;
return STATUS_SUCCESS;
}
/******************************************************************
* RtlWow64EnableFsRedirectionEx (NTDLL.@)
*/
NTSTATUS WINAPI RtlWow64EnableFsRedirectionEx( ULONG disable, ULONG *old_value )
{
if (!NtCurrentTeb64()) return STATUS_NOT_IMPLEMENTED;
__TRY
{
*old_value = NtCurrentTeb64()->TlsSlots[WOW64_TLS_FILESYSREDIR];
}
__EXCEPT_PAGE_FAULT
{
return STATUS_ACCESS_VIOLATION;
}
__ENDTRY
NtCurrentTeb64()->TlsSlots[WOW64_TLS_FILESYSREDIR] = disable;
return STATUS_SUCCESS;
}
/**********************************************************************
* RtlWow64GetCurrentMachine (NTDLL.@)
*/
USHORT WINAPI RtlWow64GetCurrentMachine(void)
{
USHORT current, native;
RtlWow64GetProcessMachines( GetCurrentProcess(), &current, &native );
return current ? current : native;
}
/**********************************************************************
* RtlWow64GetProcessMachines (NTDLL.@)
*/
NTSTATUS WINAPI RtlWow64GetProcessMachines( HANDLE process, USHORT *current_ret, USHORT *native_ret )
{
ULONG i, machines[8];
USHORT current = 0, native = 0;
NTSTATUS status;
status = NtQuerySystemInformationEx( SystemSupportedProcessorArchitectures, &process, sizeof(process),
machines, sizeof(machines), NULL );
if (status) return status;
for (i = 0; machines[i]; i++)
{
USHORT flags = HIWORD(machines[i]);
USHORT machine = LOWORD(machines[i]);
if (flags & 4 /* native machine */) native = machine;
else if (flags & 8 /* current machine */) current = machine;
}
if (current_ret) *current_ret = current;
if (native_ret) *native_ret = native;
return status;
}
/**********************************************************************
* RtlWow64IsWowGuestMachineSupported (NTDLL.@)
*/
NTSTATUS WINAPI RtlWow64IsWowGuestMachineSupported( USHORT machine, BOOLEAN *supported )
{
ULONG i, machines[8];
HANDLE process = 0;
NTSTATUS status;
status = NtQuerySystemInformationEx( SystemSupportedProcessorArchitectures, &process, sizeof(process),
machines, sizeof(machines), NULL );
if (status) return status;
*supported = FALSE;
for (i = 0; machines[i]; i++)
{
if (HIWORD(machines[i]) & 4 /* native machine */) continue;
if (machine == LOWORD(machines[i])) *supported = TRUE;
}
return status;
}
#ifdef _WIN64
/**********************************************************************
* RtlWow64GetCpuAreaInfo (NTDLL.@)
*/
NTSTATUS WINAPI RtlWow64GetCpuAreaInfo( WOW64_CPURESERVED *cpu, ULONG reserved, WOW64_CPU_AREA_INFO *info )
{
static const struct { ULONG machine, align, size, offset, flag; } data[] =
{
#define ENTRY(machine,type,flag) { machine, TYPE_ALIGNMENT(type), sizeof(type), offsetof(type,ContextFlags), flag },
ENTRY( IMAGE_FILE_MACHINE_I386, I386_CONTEXT, CONTEXT_i386 )
ENTRY( IMAGE_FILE_MACHINE_AMD64, AMD64_CONTEXT, CONTEXT_AMD64 )
ENTRY( IMAGE_FILE_MACHINE_ARMNT, ARM_CONTEXT, CONTEXT_ARM )
ENTRY( IMAGE_FILE_MACHINE_ARM64, ARM64_NT_CONTEXT, CONTEXT_ARM64 )
#undef ENTRY
};
unsigned int i;
for (i = 0; i < ARRAY_SIZE(data); i++)
{
#define ALIGN(ptr,align) ((void *)(((ULONG_PTR)(ptr) + (align) - 1) & ~((align) - 1)))
if (data[i].machine != cpu->Machine) continue;
info->Context = ALIGN( cpu + 1, data[i].align );
info->ContextEx = ALIGN( (char *)info->Context + data[i].size, sizeof(void *) );
info->ContextFlagsLocation = (char *)info->Context + data[i].offset;
info->ContextFlag = data[i].flag;
info->CpuReserved = cpu;
info->Machine = data[i].machine;
return STATUS_SUCCESS;
#undef ALIGN
}
return STATUS_INVALID_PARAMETER;
}
/**********************************************************************
* RtlWow64GetCurrentCpuArea (NTDLL.@)
*/
NTSTATUS WINAPI RtlWow64GetCurrentCpuArea( USHORT *machine, void **context, void **context_ex )
{
WOW64_CPU_AREA_INFO info;
NTSTATUS status;
if (!(status = RtlWow64GetCpuAreaInfo( NtCurrentTeb()->TlsSlots[WOW64_TLS_CPURESERVED], 0, &info )))
{
if (machine) *machine = info.Machine;
if (context) *context = info.Context;
if (context_ex) *context_ex = *(void **)info.ContextEx;
}
return status;
}
/******************************************************************************
* RtlWow64GetThreadContext (NTDLL.@)
*/
NTSTATUS WINAPI RtlWow64GetThreadContext( HANDLE handle, WOW64_CONTEXT *context )
{
return NtQueryInformationThread( handle, ThreadWow64Context, context, sizeof(*context), NULL );
}
/******************************************************************************
* RtlWow64SetThreadContext (NTDLL.@)
*/
NTSTATUS WINAPI RtlWow64SetThreadContext( HANDLE handle, const WOW64_CONTEXT *context )
{
return NtSetInformationThread( handle, ThreadWow64Context, context, sizeof(*context) );
}
/******************************************************************************
* RtlWow64GetThreadSelectorEntry (NTDLL.@)
*/
NTSTATUS WINAPI RtlWow64GetThreadSelectorEntry( HANDLE handle, THREAD_DESCRIPTOR_INFORMATION *info,
ULONG size, ULONG *retlen )
{
DWORD sel;
WOW64_CONTEXT context = { WOW64_CONTEXT_CONTROL | WOW64_CONTEXT_SEGMENTS };
LDT_ENTRY entry = { 0 };
if (size != sizeof(*info)) return STATUS_INFO_LENGTH_MISMATCH;
if (RtlWow64GetThreadContext( handle, &context ))
{
/* hardcoded values */
context.SegCs = 0x23;
#ifdef __x86_64__
__asm__( "movw %%fs,%0" : "=m" (context.SegFs) );
__asm__( "movw %%ss,%0" : "=m" (context.SegSs) );
#else
context.SegSs = 0x2b;
context.SegFs = 0x53;
#endif
}
sel = info->Selector | 3;
if (sel == 0x03) goto done; /* null selector */
/* set common data */
entry.HighWord.Bits.Dpl = 3;
entry.HighWord.Bits.Pres = 1;
entry.HighWord.Bits.Default_Big = 1;
if (sel == context.SegCs) /* code selector */
{
entry.LimitLow = 0xffff;
entry.HighWord.Bits.LimitHi = 0xf;
entry.HighWord.Bits.Type = 0x1b; /* code */
entry.HighWord.Bits.Granularity = 1;
}
else if (sel == context.SegSs) /* data selector */
{
entry.LimitLow = 0xffff;
entry.HighWord.Bits.LimitHi = 0xf;
entry.HighWord.Bits.Type = 0x13; /* data */
entry.HighWord.Bits.Granularity = 1;
}
else if (sel == context.SegFs) /* TEB selector */
{
THREAD_BASIC_INFORMATION tbi;
entry.LimitLow = 0xfff;
entry.HighWord.Bits.Type = 0x13; /* data */
if (!NtQueryInformationThread( handle, ThreadBasicInformation, &tbi, sizeof(tbi), NULL ))
{
ULONG addr = (ULONG_PTR)tbi.TebBaseAddress + 0x2000; /* 32-bit teb offset */
entry.BaseLow = addr;
entry.HighWord.Bytes.BaseMid = addr >> 16;
entry.HighWord.Bytes.BaseHi = addr >> 24;
}
}
else return STATUS_UNSUCCESSFUL;
done:
info->Entry = entry;
if (retlen) *retlen = sizeof(entry);
return STATUS_SUCCESS;
}
#endif
/**********************************************************************
* RtlCreateUserProcess (NTDLL.@)
*/
NTSTATUS WINAPI RtlCreateUserProcess( UNICODE_STRING *path, ULONG attributes,
RTL_USER_PROCESS_PARAMETERS *params,
SECURITY_DESCRIPTOR *process_descr,
SECURITY_DESCRIPTOR *thread_descr,
HANDLE parent, BOOLEAN inherit, HANDLE debug, HANDLE token,
RTL_USER_PROCESS_INFORMATION *info )
{
OBJECT_ATTRIBUTES process_attr, thread_attr;
PS_CREATE_INFO create_info;
ULONG_PTR buffer[offsetof( PS_ATTRIBUTE_LIST, Attributes[6] ) / sizeof(ULONG_PTR)];
PS_ATTRIBUTE_LIST *attr = (PS_ATTRIBUTE_LIST *)buffer;
UINT pos = 0;
RtlNormalizeProcessParams( params );
attr->Attributes[pos].Attribute = PS_ATTRIBUTE_IMAGE_NAME;
attr->Attributes[pos].Size = path->Length;
attr->Attributes[pos].ValuePtr = path->Buffer;
attr->Attributes[pos].ReturnLength = NULL;
pos++;
attr->Attributes[pos].Attribute = PS_ATTRIBUTE_CLIENT_ID;
attr->Attributes[pos].Size = sizeof(info->ClientId);
attr->Attributes[pos].ValuePtr = &info->ClientId;
attr->Attributes[pos].ReturnLength = NULL;
pos++;
attr->Attributes[pos].Attribute = PS_ATTRIBUTE_IMAGE_INFO;
attr->Attributes[pos].Size = sizeof(info->ImageInformation);
attr->Attributes[pos].ValuePtr = &info->ImageInformation;
attr->Attributes[pos].ReturnLength = NULL;
pos++;
if (parent)
{
attr->Attributes[pos].Attribute = PS_ATTRIBUTE_PARENT_PROCESS;
attr->Attributes[pos].Size = sizeof(parent);
attr->Attributes[pos].ValuePtr = parent;
attr->Attributes[pos].ReturnLength = NULL;
pos++;
}
if (debug)
{
attr->Attributes[pos].Attribute = PS_ATTRIBUTE_DEBUG_PORT;
attr->Attributes[pos].Size = sizeof(debug);
attr->Attributes[pos].ValuePtr = debug;
attr->Attributes[pos].ReturnLength = NULL;
pos++;
}
if (token)
{
attr->Attributes[pos].Attribute = PS_ATTRIBUTE_TOKEN;
attr->Attributes[pos].Size = sizeof(token);
attr->Attributes[pos].ValuePtr = token;
attr->Attributes[pos].ReturnLength = NULL;
pos++;
}
attr->TotalLength = offsetof( PS_ATTRIBUTE_LIST, Attributes[pos] );
InitializeObjectAttributes( &process_attr, NULL, 0, NULL, process_descr );
InitializeObjectAttributes( &thread_attr, NULL, 0, NULL, thread_descr );
return NtCreateUserProcess( &info->Process, &info->Thread, PROCESS_ALL_ACCESS, THREAD_ALL_ACCESS,
&process_attr, &thread_attr,
inherit ? PROCESS_CREATE_FLAGS_INHERIT_HANDLES : 0,
THREAD_CREATE_FLAGS_CREATE_SUSPENDED, params,
&create_info, attr );
}
/***********************************************************************
* DbgUiGetThreadDebugObject (NTDLL.@)
*/
HANDLE WINAPI DbgUiGetThreadDebugObject(void)
{
return NtCurrentTeb()->DbgSsReserved[1];
}
/***********************************************************************
* DbgUiSetThreadDebugObject (NTDLL.@)
*/
void WINAPI DbgUiSetThreadDebugObject( HANDLE handle )
{
NtCurrentTeb()->DbgSsReserved[1] = handle;
}
/***********************************************************************
* DbgUiConnectToDbg (NTDLL.@)
*/
NTSTATUS WINAPI DbgUiConnectToDbg(void)
{
HANDLE handle;
NTSTATUS status;
OBJECT_ATTRIBUTES attr = { sizeof(attr) };
if (DbgUiGetThreadDebugObject()) return STATUS_SUCCESS; /* already connected */
status = NtCreateDebugObject( &handle, DEBUG_ALL_ACCESS, &attr, DEBUG_KILL_ON_CLOSE );
if (!status) DbgUiSetThreadDebugObject( handle );
return status;
}
/***********************************************************************
* DbgUiDebugActiveProcess (NTDLL.@)
*/
NTSTATUS WINAPI DbgUiDebugActiveProcess( HANDLE process )
{
NTSTATUS status;
if ((status = NtDebugActiveProcess( process, DbgUiGetThreadDebugObject() ))) return status;
if ((status = DbgUiIssueRemoteBreakin( process ))) DbgUiStopDebugging( process );
return status;
}
/***********************************************************************
* DbgUiStopDebugging (NTDLL.@)
*/
NTSTATUS WINAPI DbgUiStopDebugging( HANDLE process )
{
return NtRemoveProcessDebug( process, DbgUiGetThreadDebugObject() );
}
/***********************************************************************
* DbgUiContinue (NTDLL.@)
*/
NTSTATUS WINAPI DbgUiContinue( CLIENT_ID *client, NTSTATUS status )
{
return NtDebugContinue( DbgUiGetThreadDebugObject(), client, status );
}
/***********************************************************************
* DbgUiWaitStateChange (NTDLL.@)
*/
NTSTATUS WINAPI DbgUiWaitStateChange( DBGUI_WAIT_STATE_CHANGE *state, LARGE_INTEGER *timeout )
{
return NtWaitForDebugEvent( DbgUiGetThreadDebugObject(), TRUE, timeout, state );
}
/* helper for DbgUiConvertStateChangeStructure */
static inline void *get_thread_teb( HANDLE thread )
{
THREAD_BASIC_INFORMATION info;
if (NtQueryInformationThread( thread, ThreadBasicInformation, &info, sizeof(info), NULL )) return NULL;
return info.TebBaseAddress;
}
/***********************************************************************
* DbgUiConvertStateChangeStructure (NTDLL.@)
*/
NTSTATUS WINAPI DbgUiConvertStateChangeStructure( DBGUI_WAIT_STATE_CHANGE *state, DEBUG_EVENT *event )
{
event->dwProcessId = HandleToULong( state->AppClientId.UniqueProcess );
event->dwThreadId = HandleToULong( state->AppClientId.UniqueThread );
switch (state->NewState)
{
case DbgCreateThreadStateChange:
{
DBGUI_CREATE_THREAD *info = &state->StateInfo.CreateThread;
event->dwDebugEventCode = CREATE_THREAD_DEBUG_EVENT;
event->u.CreateThread.hThread = info->HandleToThread;
event->u.CreateThread.lpThreadLocalBase = get_thread_teb( info->HandleToThread );
event->u.CreateThread.lpStartAddress = info->NewThread.StartAddress;
break;
}
case DbgCreateProcessStateChange:
{
DBGUI_CREATE_PROCESS *info = &state->StateInfo.CreateProcessInfo;
event->dwDebugEventCode = CREATE_PROCESS_DEBUG_EVENT;
event->u.CreateProcessInfo.hFile = info->NewProcess.FileHandle;
event->u.CreateProcessInfo.hProcess = info->HandleToProcess;
event->u.CreateProcessInfo.hThread = info->HandleToThread;
event->u.CreateProcessInfo.lpBaseOfImage = info->NewProcess.BaseOfImage;
event->u.CreateProcessInfo.dwDebugInfoFileOffset = info->NewProcess.DebugInfoFileOffset;
event->u.CreateProcessInfo.nDebugInfoSize = info->NewProcess.DebugInfoSize;
event->u.CreateProcessInfo.lpThreadLocalBase = get_thread_teb( info->HandleToThread );
event->u.CreateProcessInfo.lpStartAddress = info->NewProcess.InitialThread.StartAddress;
event->u.CreateProcessInfo.lpImageName = NULL;
event->u.CreateProcessInfo.fUnicode = TRUE;
break;
}
case DbgExitThreadStateChange:
{
DBGKM_EXIT_THREAD *info = &state->StateInfo.ExitThread;
event->dwDebugEventCode = EXIT_THREAD_DEBUG_EVENT;
event->u.ExitThread.dwExitCode = info->ExitStatus;
break;
}
case DbgExitProcessStateChange:
{
DBGKM_EXIT_PROCESS *info = &state->StateInfo.ExitProcess;
event->dwDebugEventCode = EXIT_PROCESS_DEBUG_EVENT;
event->u.ExitProcess.dwExitCode = info->ExitStatus;
break;
}
case DbgExceptionStateChange:
case DbgBreakpointStateChange:
case DbgSingleStepStateChange:
{
DBGKM_EXCEPTION *info = &state->StateInfo.Exception;
DWORD code = info->ExceptionRecord.ExceptionCode;
if (code == DBG_PRINTEXCEPTION_C && info->ExceptionRecord.NumberParameters >= 2)
{
event->dwDebugEventCode = OUTPUT_DEBUG_STRING_EVENT;
event->u.DebugString.lpDebugStringData = (void *)info->ExceptionRecord.ExceptionInformation[1];
event->u.DebugString.fUnicode = FALSE;
event->u.DebugString.nDebugStringLength = info->ExceptionRecord.ExceptionInformation[0];
}
else if (code == DBG_RIPEXCEPTION && info->ExceptionRecord.NumberParameters >= 2)
{
event->dwDebugEventCode = RIP_EVENT;
event->u.RipInfo.dwError = info->ExceptionRecord.ExceptionInformation[0];
event->u.RipInfo.dwType = info->ExceptionRecord.ExceptionInformation[1];
}
else
{
event->dwDebugEventCode = EXCEPTION_DEBUG_EVENT;
event->u.Exception.ExceptionRecord = info->ExceptionRecord;
event->u.Exception.dwFirstChance = info->FirstChance;
}
break;
}
case DbgLoadDllStateChange:
{
DBGKM_LOAD_DLL *info = &state->StateInfo.LoadDll;
event->dwDebugEventCode = LOAD_DLL_DEBUG_EVENT;
event->u.LoadDll.hFile = info->FileHandle;
event->u.LoadDll.lpBaseOfDll = info->BaseOfDll;
event->u.LoadDll.dwDebugInfoFileOffset = info->DebugInfoFileOffset;
event->u.LoadDll.nDebugInfoSize = info->DebugInfoSize;
event->u.LoadDll.lpImageName = info->NamePointer;
event->u.LoadDll.fUnicode = TRUE;
break;
}
case DbgUnloadDllStateChange:
{
DBGKM_UNLOAD_DLL *info = &state->StateInfo.UnloadDll;
event->dwDebugEventCode = UNLOAD_DLL_DEBUG_EVENT;
event->u.UnloadDll.lpBaseOfDll = info->BaseAddress;
break;
}
default:
return STATUS_UNSUCCESSFUL;
}
return STATUS_SUCCESS;
}
/***********************************************************************
* DbgUiRemoteBreakin (NTDLL.@)
*/
void WINAPI DbgUiRemoteBreakin( void *arg )
{
TRACE( "\n" );
if (NtCurrentTeb()->Peb->BeingDebugged)
{
__TRY
{
DbgBreakPoint();
}
__EXCEPT_ALL
{
/* do nothing */
}
__ENDTRY
}
RtlExitUserThread( STATUS_SUCCESS );
}
/***********************************************************************
* DbgUiIssueRemoteBreakin (NTDLL.@)
*/
NTSTATUS WINAPI DbgUiIssueRemoteBreakin( HANDLE process )
{
HANDLE handle;
NTSTATUS status;
OBJECT_ATTRIBUTES attr = { sizeof(attr) };
status = NtCreateThreadEx( &handle, THREAD_ALL_ACCESS, &attr, process,
DbgUiRemoteBreakin, NULL, 0, 0, 0, 0, NULL );
if (!status) NtClose( handle );
return status;
}
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