about windows dep
强志学
from chrome 开源
Sun Aug 24 00:55:55 2008 UTC (4 weeks ago) by license.bot
File size: 3734 byte(s)
Use a more compact license header in source files.
// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "sandbox/src/dep.h"
#include "base/logging.h"
#include "base/win_util.h"
namespace sandbox {
namespace {
// These values are in the Windows 2008 SDK but not in the previous ones. Define
// the values here until we're sure everyone updated their SDK.
#ifndef PROCESS_DEP_ENABLE
#define PROCESS_DEP_ENABLE 0x00000001
#endif
#ifndef PROCESS_DEP_DISABLE_ATL_THUNK_EMULATION
#define PROCESS_DEP_DISABLE_ATL_THUNK_EMULATION 0x00000002
#endif
// SetProcessDEPPolicy is declared in the Windows 2008 SDK.
typedef BOOL (WINAPI *FnSetProcessDEPPolicy)(DWORD dwFlags);
// Completely undocumented from Microsoft. You can find this information by
// disassembling Vista's SP1 kernel32.dll with your favorite disassembler.
enum PROCESS_INFORMATION_CLASS {
ProcessExecuteFlags = 0x22,
};
// Flags named as per their usage.
const int MEM_EXECUTE_OPTION_ENABLE = 1;
const int MEM_EXECUTE_OPTION_DISABLE = 2;
const int MEM_EXECUTE_OPTION_ATL7_THUNK_EMULATION = 4;
const int MEM_EXECUTE_OPTION_PERMANENT = 8;
// Not exactly the right signature but that will suffice.
typedef HRESULT (WINAPI *FnNtSetInformationProcess)(
HANDLE ProcessHandle,
PROCESS_INFORMATION_CLASS ProcessInformationClass,
PVOID ProcessInformation,
ULONG ProcessInformationLength);
} // namespace
bool SetCurrentProcessDEP(DepEnforcement enforcement) {
#ifdef _WIN64
// DEP is always on in x64.
return enforcement != DEP_DISABLED;
#endif
// Try documented ways first.
// Only available on Vista SP1 and Windows 2008.
// http://msdn.microsoft.com/en-us/library/bb736299.aspx
FnSetProcessDEPPolicy SetProcDEP =
reinterpret_cast<FnSetProcessDEPPolicy>(
GetProcAddress(GetModuleHandle(L"kernel32.dll"),
"SetProcessDEPPolicy"));
if (SetProcDEP) {
ULONG dep_flags;
switch (enforcement) {
case DEP_DISABLED:
dep_flags = 0;
break;
case DEP_ENABLED:
dep_flags = PROCESS_DEP_ENABLE |
PROCESS_DEP_DISABLE_ATL_THUNK_EMULATION;
break;
case DEP_ENABLED_ATL7_COMPAT:
dep_flags = PROCESS_DEP_ENABLE;
break;
default:
NOTREACHED();
return false;
}
return 0 != SetProcDEP(dep_flags);
}
// Go in darker areas.
// Only available on Windows XP SP2 and Windows Server 2003 SP1.
// http://www.uninformed.org/?v=2&a=4
FnNtSetInformationProcess NtSetInformationProc =
reinterpret_cast<FnNtSetInformationProcess>(
GetProcAddress(GetModuleHandle(L"ntdll.dll"),
"NtSetInformationProcess"));
if (!NtSetInformationProc)
return false;
// Flags being used as per SetProcessDEPPolicy on Vista SP1.
ULONG dep_flags;
switch (enforcement) {
case DEP_DISABLED:
// 2
dep_flags = MEM_EXECUTE_OPTION_DISABLE;
break;
case DEP_ENABLED:
// 9
dep_flags = MEM_EXECUTE_OPTION_PERMANENT | MEM_EXECUTE_OPTION_ENABLE;
break;
case DEP_ENABLED_ATL7_COMPAT:
// 0xD
dep_flags = MEM_EXECUTE_OPTION_PERMANENT | MEM_EXECUTE_OPTION_ENABLE |
MEM_EXECUTE_OPTION_ATL7_THUNK_EMULATION;
break;
default:
NOTREACHED();
return false;
}
HRESULT status = NtSetInformationProc(GetCurrentProcess(),
ProcessExecuteFlags,
&dep_flags,
sizeof(dep_flags));
return SUCCEEDED(status);
}
} // namespace sandboxfrom vlc 开源
/*****************************************************************************
* winvlc.c: the Windows VLC player
*****************************************************************************
* Copyright (C) 1998-2008 the VideoLAN team
*
* Authors: Vincent Seguin <seguin@via.ecp.fr>
* Samuel Hocevar <sam@zoy.org>
* Gildas Bazin <gbazin@videolan.org>
* Derk-Jan Hartman <hartman at videolan dot org>
* Lots of other people, see the libvlc AUTHORS file
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#define UNICODE
#include <vlc/vlc.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <windows.h>
#if !defined(UNDER_CE)
# ifndef _WIN32_IE
# define _WIN32_IE 0x501
# endif
# include <shlobj.h>
# include <tlhelp32.h>
# include <wininet.h>
# ifndef _WIN64
static void check_crashdump(void);
LONG WINAPI vlc_exception_filter(struct _EXCEPTION_POINTERS *lpExceptionInfo);
# endif
typedef enum _HEAP_INFORMATION_CLASS {
HeapCompatibilityInformation,
HeapEnableTerminationOnCorruption
} HEAP_INFORMATION_CLASS;
WINBASEAPI BOOL WINAPI HeapSetInformation(HANDLE,HEAP_INFORMATION_CLASS,PVOID,SIZE_T);
#define HeapEnableTerminationOnCorruption (HEAP_INFORMATION_CLASS)1
#endif
#ifndef UNDER_CE
static char *FromWide (const wchar_t *wide)
{
size_t len;
len = WideCharToMultiByte (CP_UTF8, 0, wide, -1, NULL, 0, NULL, NULL);
char *out = (char *)malloc (len);
if (out)
WideCharToMultiByte (CP_UTF8, 0, wide, -1, out, len, NULL, NULL);
return out;
}
#else
static int parse_cmdline (char *line, char ***argvp)
{
char **argv = malloc (sizeof (char *));
int argc = 0;
while (*line != '\0')
{
char quote = 0;
/* Skips white spaces */
while (strchr ("\t ", *line))
line++;
if (!*line)
break;
/* Starts a new parameter */
argv = realloc (argv, (argc + 2) * sizeof (char *));
if (*line == '"')
{
quote = '"';
line++;
}
argv[argc++] = line;
more:
while (*line && !strchr ("\t ", *line))
line++;
if (line > argv[argc - 1] && line[-1] == quote)
/* End of quoted parameter */
line[-1] = 0;
else
if (*line && quote)
{
/* Space within a quote */
line++;
goto more;
}
else
/* End of unquoted parameter */
if (*line)
*line++ = 0;
}
argv[argc] = NULL;
*argvp = argv;
return argc;
}
#endif
int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance,
#ifndef UNDER_CE
LPSTR lpCmdLine,
#else
LPWSTR lpCmdLine,
#endif
int nCmdShow )
{
int argc;
#ifndef UNDER_CE
HeapSetInformation(NULL, HeapEnableTerminationOnCorruption, NULL, 0);
HINSTANCE h_Kernel32 = LoadLibraryW(L"kernel32.dll");
if(h_Kernel32)
{
BOOL (WINAPI * mySetProcessDEPPolicy)( DWORD dwFlags);
BOOL (WINAPI * mySetDllDirectoryA)(const char* lpPathName);
# define PROCESS_DEP_ENABLE 1
mySetProcessDEPPolicy = (BOOL WINAPI (*)(DWORD))
GetProcAddress(h_Kernel32, "SetProcessDEPPolicy");
if(mySetProcessDEPPolicy)
mySetProcessDEPPolicy(PROCESS_DEP_ENABLE);
/* Do NOT load any library from cwd. */
mySetDllDirectoryA = (BOOL WINAPI (*)(const char*)) GetProcAddress(h_Kernel32, "SetDllDirectoryA");
if(mySetDllDirectoryA)
mySetDllDirectoryA("");
FreeLibrary(h_Kernel32);
}
wchar_t **wargv = CommandLineToArgvW (GetCommandLine (), &argc);
if (wargv == NULL)
return 1;
char *argv[argc + 1];
BOOL crash_handling = TRUE;
int j = 0;
argv[j++] = FromWide( L"--no-ignore-config" );
for (int i = 1; i < argc; i++)
{
if(!wcscmp(wargv[i], L"--no-crashdump"))
{
crash_handling = FALSE;
}
else
{
argv[j] = FromWide (wargv[i]);
j++;
}
}
argc = j;
argv[argc] = NULL;
LocalFree (wargv);
# ifndef _WIN64
if(crash_handling)
{
check_crashdump();
SetUnhandledExceptionFilter(vlc_exception_filter);
}
# endif /* WIN64 */
#else
char **argv, psz_cmdline[wcslen(lpCmdLine) * 4];
WideCharToMultiByte( CP_UTF8, 0, lpCmdLine, -1,
psz_cmdline, sizeof (psz_cmdline), NULL, NULL );
argc = parse_cmdline (psz_cmdline, &argv);
#endif
/* Initialize libvlc */
libvlc_instance_t *vlc;
vlc = libvlc_new (argc, (const char **)argv);
if (vlc != NULL)
{
libvlc_add_intf (vlc, "globalhotkeys,none");
libvlc_add_intf (vlc, NULL);
libvlc_playlist_play (vlc, -1, 0, NULL);
libvlc_wait (vlc);
libvlc_release (vlc);
}
for (int i = 0; i < argc; i++)
free (argv[i]);
(void)hInstance; (void)hPrevInstance; (void)lpCmdLine; (void)nCmdShow;
return 0;
}
#if !defined( UNDER_CE ) && !defined( _WIN64 )
static void get_crashdump_path(wchar_t * wdir)
{
if( S_OK != SHGetFolderPathW( NULL,
CSIDL_APPDATA | CSIDL_FLAG_CREATE,
NULL, SHGFP_TYPE_CURRENT, wdir ) )
fprintf( stderr, "Can't open the vlc conf PATH\n" );
swprintf( wdir+wcslen( wdir ), L"%s", L"\\vlc\\crashdump" );
}
static void check_crashdump()
{
wchar_t * wdir = (wchar_t *)malloc(sizeof(wchar_t)*MAX_PATH);
get_crashdump_path(wdir);
FILE * fd = _wfopen ( wdir, L"r, ccs=UTF-8" );
if( fd )
{
fclose( fd );
int answer = MessageBox( NULL, L"VLC media player just crashed." \
" Do you want to send a bug report to the developers team?",
L"VLC crash reporting", MB_YESNO);
if(answer == IDYES)
{
HINTERNET Hint = InternetOpen(L"VLC Crash Reporter", INTERNET_OPEN_TYPE_PRECONFIG, NULL,NULL,0);
if(Hint)
{
HINTERNET ftp = InternetConnect(Hint, L"crash.videolan.org", INTERNET_DEFAULT_FTP_PORT,
NULL, NULL, INTERNET_SERVICE_FTP, 0, 0);
if(ftp)
{
SYSTEMTIME now;
GetSystemTime(&now);
wchar_t remote_file[MAX_PATH];
swprintf( remote_file, L"/crashes-win32/%04d%02d%02d%02d%02d%02d",
now.wYear, now.wMonth, now.wDay, now.wHour, now.wMinute, now.wSecond );
if( FtpPutFile( ftp, wdir, remote_file, FTP_TRANSFER_TYPE_BINARY, 0) )
MessageBox( NULL, L"Report sent correctly. Thanks a lot for the help.",
L"Report sent", MB_OK);
else
MessageBox( NULL, L"There was an error while transferring to the FTP server. "\
"Thanks a lot for the help anyway.",
L"Report sending failed", MB_OK);
InternetCloseHandle(ftp);
}
else
{
MessageBox( NULL, L"There was an error while connecting to the FTP server. "\
"Thanks a lot for the help anyway.",
L"Report sending failed", MB_OK);
fprintf(stderr,"Can't connect to FTP server%d\n",GetLastError());
}
InternetCloseHandle(Hint);
}
else
{
MessageBox( NULL, L"There was an error while connecting to Internet. "\
"Thanks a lot for the help anyway.",
L"Reporting sending failed", MB_OK);
}
}
_wremove(wdir);
}
free((void *)wdir);
}
/*****************************************************************************
* vlc_exception_filter: handles unhandled exceptions, like segfaults
*****************************************************************************/
LONG WINAPI vlc_exception_filter(struct _EXCEPTION_POINTERS *lpExceptionInfo)
{
if(IsDebuggerPresent())
{
//If a debugger is present, pass the exception to the debugger with EXCEPTION_CONTINUE_SEARCH
return EXCEPTION_CONTINUE_SEARCH;
}
else
{
fprintf( stderr, "unhandled vlc exception\n" );
wchar_t * wdir = (wchar_t *)malloc(sizeof(wchar_t)*MAX_PATH);
get_crashdump_path(wdir);
FILE * fd = _wfopen ( wdir, L"w, ccs=UTF-8" );
free((void *)wdir);
if( !fd )
{
fprintf( stderr, "\nerror while opening file" );
exit( 1 );
}
OSVERSIONINFO osvi;
ZeroMemory( &osvi, sizeof(OSVERSIONINFO) );
osvi.dwOSVersionInfoSize = sizeof( OSVERSIONINFO );
GetVersionEx( &osvi );
fwprintf( fd, L"[version]\nOS=%d.%d.%d.%d.%s\nVLC=" VERSION_MESSAGE, osvi.dwMajorVersion,
osvi.dwMinorVersion,
osvi.dwBuildNumber,
osvi.dwPlatformId,
osvi.szCSDVersion);
const CONTEXT *const pContext = (const CONTEXT *)lpExceptionInfo->ContextRecord;
const EXCEPTION_RECORD *const pException = (const EXCEPTION_RECORD *)lpExceptionInfo->ExceptionRecord;
/*No nested exceptions for now*/
fwprintf( fd, L"\n\n[exceptions]\n%08x at %08x",pException->ExceptionCode,
pException->ExceptionAddress );
if( pException->NumberParameters > 0 )
{
unsigned int i;
for( i = 0; i < pException->NumberParameters; i++ )
fwprintf( fd, L" | %08x", pException->ExceptionInformation[i] );
}
fwprintf( fd, L"\n\n[context]\nEDI:%08x\nESI:%08x\n" \
"EBX:%08x\nEDX:%08x\nECX:%08x\nEAX:%08x\n" \
"EBP:%08x\nEIP:%08x\nESP:%08x\n",
pContext->Edi,pContext->Esi,pContext->Ebx,
pContext->Edx,pContext->Ecx,pContext->Eax,
pContext->Ebp,pContext->Eip,pContext->Esp );
fwprintf( fd, L"\n[stacktrace]\n#EIP|base|module\n" );
wchar_t module[ 256 ];
MEMORY_BASIC_INFORMATION mbi ;
VirtualQuery( (DWORD *)pContext->Eip, &mbi, sizeof( mbi ) ) ;
HINSTANCE hInstance = mbi.AllocationBase;
GetModuleFileName( hInstance, module, 256 ) ;
fwprintf( fd, L"%08x|%s\n", pContext->Eip, module );
DWORD pEbp = pContext->Ebp;
DWORD caller = *((DWORD*)pEbp + 1);
unsigned i_line = 0;
do
{
VirtualQuery( (DWORD *)caller, &mbi, sizeof( mbi ) ) ;
HINSTANCE hInstance = mbi.AllocationBase;
GetModuleFileName( hInstance, module, 256 ) ;
fwprintf( fd, L"%08x|%s\n", caller, module );
pEbp = *(DWORD*)pEbp ;
caller = *((DWORD*)pEbp + 1) ;
i_line++;
/*The last EBP points to NULL!*/
}while(caller && i_line< 100);
fclose( fd );
fflush( stderr );
exit( 1 );
}
}
#endif
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