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/*
* Modules
*
* Copyright 1995 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 "config.h"
#include "wine/port.h"
#include <fcntl.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "winerror.h"
#include "windef.h"
#include "winbase.h"
#include "winternl.h"
#include "kernel_private.h"
#include "psapi.h"
#include "wine/exception.h"
#include "wine/list.h"
#include "wine/asm.h"
#include "wine/debug.h"
#include "wine/unicode.h"
WINE_DEFAULT_DEBUG_CHANNEL(module);
#define NE_FFLAGS_LIBMODULE 0x8000
struct dll_dir_entry
{
struct list entry;
WCHAR dir[1];
};
static struct list dll_dir_list = LIST_INIT( dll_dir_list ); /* extra dirs from AddDllDirectory */
static WCHAR *dll_directory; /* extra path for SetDllDirectoryW */
static DWORD default_search_flags; /* default flags set by SetDefaultDllDirectories */
/* to keep track of LOAD_LIBRARY_AS_DATAFILE_EXCLUSIVE file handles */
struct exclusive_datafile
{
struct list entry;
HMODULE module;
HANDLE file;
};
static struct list exclusive_datafile_list = LIST_INIT( exclusive_datafile_list );
static CRITICAL_SECTION dlldir_section;
static CRITICAL_SECTION_DEBUG critsect_debug =
{
0, 0, &dlldir_section,
{ &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": dlldir_section") }
};
static CRITICAL_SECTION dlldir_section = { &critsect_debug, -1, 0, 0, 0, 0 };
/****************************************************************************
* GetDllDirectoryA (KERNEL32.@)
*/
DWORD WINAPI GetDllDirectoryA( DWORD buf_len, LPSTR buffer )
{
DWORD len;
RtlEnterCriticalSection( &dlldir_section );
len = dll_directory ? FILE_name_WtoA( dll_directory, strlenW(dll_directory), NULL, 0 ) : 0;
if (buffer && buf_len > len)
{
if (dll_directory) FILE_name_WtoA( dll_directory, -1, buffer, buf_len );
else *buffer = 0;
}
else
{
len++; /* for terminating null */
if (buffer) *buffer = 0;
}
RtlLeaveCriticalSection( &dlldir_section );
return len;
}
/****************************************************************************
* GetDllDirectoryW (KERNEL32.@)
*/
DWORD WINAPI GetDllDirectoryW( DWORD buf_len, LPWSTR buffer )
{
DWORD len;
RtlEnterCriticalSection( &dlldir_section );
len = dll_directory ? strlenW( dll_directory ) : 0;
if (buffer && buf_len > len)
{
if (dll_directory) memcpy( buffer, dll_directory, (len + 1) * sizeof(WCHAR) );
else *buffer = 0;
}
else
{
len++; /* for terminating null */
if (buffer) *buffer = 0;
}
RtlLeaveCriticalSection( &dlldir_section );
return len;
}
/****************************************************************************
* SetDllDirectoryA (KERNEL32.@)
*/
BOOL WINAPI SetDllDirectoryA( LPCSTR dir )
{
WCHAR *dirW = NULL;
BOOL ret;
if (dir && !(dirW = FILE_name_AtoW( dir, TRUE ))) return FALSE;
ret = SetDllDirectoryW( dirW );
HeapFree( GetProcessHeap(), 0, dirW );
return ret;
}
/****************************************************************************
* SetDllDirectoryW (KERNEL32.@)
*/
BOOL WINAPI SetDllDirectoryW( LPCWSTR dir )
{
WCHAR *newdir = NULL;
if (dir)
{
DWORD len = (strlenW(dir) + 1) * sizeof(WCHAR);
if (!(newdir = HeapAlloc( GetProcessHeap(), 0, len )))
{
SetLastError( ERROR_NOT_ENOUGH_MEMORY );
return FALSE;
}
memcpy( newdir, dir, len );
}
RtlEnterCriticalSection( &dlldir_section );
HeapFree( GetProcessHeap(), 0, dll_directory );
dll_directory = newdir;
RtlLeaveCriticalSection( &dlldir_section );
return TRUE;
}
/****************************************************************************
* AddDllDirectory (KERNEL32.@)
*/
DLL_DIRECTORY_COOKIE WINAPI AddDllDirectory( const WCHAR *dir )
{
WCHAR path[MAX_PATH];
DWORD len;
struct dll_dir_entry *ptr;
DOS_PATHNAME_TYPE type = RtlDetermineDosPathNameType_U( dir );
if (type != ABSOLUTE_PATH && type != ABSOLUTE_DRIVE_PATH)
{
SetLastError( ERROR_INVALID_PARAMETER );
return NULL;
}
if (!(len = GetFullPathNameW( dir, MAX_PATH, path, NULL ))) return NULL;
if (GetFileAttributesW( path ) == INVALID_FILE_ATTRIBUTES) return NULL;
if (!(ptr = HeapAlloc( GetProcessHeap(), 0, offsetof(struct dll_dir_entry, dir[++len] )))) return NULL;
memcpy( ptr->dir, path, len * sizeof(WCHAR) );
TRACE( "%s\n", debugstr_w( ptr->dir ));
RtlEnterCriticalSection( &dlldir_section );
list_add_head( &dll_dir_list, &ptr->entry );
RtlLeaveCriticalSection( &dlldir_section );
return ptr;
}
/****************************************************************************
* RemoveDllDirectory (KERNEL32.@)
*/
BOOL WINAPI RemoveDllDirectory( DLL_DIRECTORY_COOKIE cookie )
{
struct dll_dir_entry *ptr = cookie;
TRACE( "%s\n", debugstr_w( ptr->dir ));
RtlEnterCriticalSection( &dlldir_section );
list_remove( &ptr->entry );
HeapFree( GetProcessHeap(), 0, ptr );
RtlLeaveCriticalSection( &dlldir_section );
return TRUE;
}
/*************************************************************************
* SetDefaultDllDirectories (KERNEL32.@)
*/
BOOL WINAPI SetDefaultDllDirectories( DWORD flags )
{
/* LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR doesn't make sense in default dirs */
const DWORD load_library_search_flags = (LOAD_LIBRARY_SEARCH_APPLICATION_DIR |
LOAD_LIBRARY_SEARCH_USER_DIRS |
LOAD_LIBRARY_SEARCH_SYSTEM32 |
LOAD_LIBRARY_SEARCH_DEFAULT_DIRS);
if (!flags || (flags & ~load_library_search_flags))
{
SetLastError( ERROR_INVALID_PARAMETER );
return FALSE;
}
default_search_flags = flags;
return TRUE;
}
/***********************************************************************
* GetBinaryTypeW [KERNEL32.@]
*
* Determine whether a file is executable, and if so, what kind.
*
* PARAMS
* lpApplicationName [I] Path of the file to check
* lpBinaryType [O] Destination for the binary type
*
* RETURNS
* TRUE, if the file is an executable, in which case lpBinaryType is set.
* FALSE, if the file is not an executable or if the function fails.
*
* NOTES
* The type of executable is a property that determines which subsystem an
* executable file runs under. lpBinaryType can be set to one of the following
* values:
* SCS_32BIT_BINARY: A Win32 based application
* SCS_64BIT_BINARY: A Win64 based application
* SCS_DOS_BINARY: An MS-Dos based application
* SCS_WOW_BINARY: A Win16 based application
* SCS_PIF_BINARY: A PIF file that executes an MS-Dos based app
* SCS_POSIX_BINARY: A POSIX based application ( Not implemented )
* SCS_OS216_BINARY: A 16bit OS/2 based application
*
* To find the binary type, this function reads in the files header information.
* If extended header information is not present it will assume that the file
* is a DOS executable. If extended header information is present it will
* determine if the file is a 16, 32 or 64 bit Windows executable by checking the
* flags in the header.
*
* ".com" and ".pif" files are only recognized by their file name extension,
* as per native Windows.
*/
BOOL WINAPI GetBinaryTypeW( LPCWSTR name, LPDWORD type )
{
static const WCHAR comW[] = { '.','c','o','m',0 };
static const WCHAR pifW[] = { '.','p','i','f',0 };
HANDLE hfile, mapping;
NTSTATUS status;
const WCHAR *ptr;
TRACE("%s\n", debugstr_w(name) );
if (type == NULL) return FALSE;
hfile = CreateFileW( name, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0 );
if ( hfile == INVALID_HANDLE_VALUE )
return FALSE;
status = NtCreateSection( &mapping, STANDARD_RIGHTS_REQUIRED | SECTION_QUERY,
NULL, NULL, PAGE_READONLY, SEC_IMAGE, hfile );
CloseHandle( hfile );
switch (status)
{
case STATUS_SUCCESS:
{
SECTION_IMAGE_INFORMATION info;
status = NtQuerySection( mapping, SectionImageInformation, &info, sizeof(info), NULL );
CloseHandle( mapping );
if (status) return FALSE;
switch (info.Machine)
{
case IMAGE_FILE_MACHINE_I386:
case IMAGE_FILE_MACHINE_ARM:
case IMAGE_FILE_MACHINE_THUMB:
case IMAGE_FILE_MACHINE_ARMNT:
case IMAGE_FILE_MACHINE_POWERPC:
*type = SCS_32BIT_BINARY;
return TRUE;
case IMAGE_FILE_MACHINE_AMD64:
case IMAGE_FILE_MACHINE_ARM64:
*type = SCS_64BIT_BINARY;
return TRUE;
}
return FALSE;
}
case STATUS_INVALID_IMAGE_WIN_16:
*type = SCS_WOW_BINARY;
return TRUE;
case STATUS_INVALID_IMAGE_WIN_32:
*type = SCS_32BIT_BINARY;
return TRUE;
case STATUS_INVALID_IMAGE_WIN_64:
*type = SCS_64BIT_BINARY;
return TRUE;
case STATUS_INVALID_IMAGE_NE_FORMAT:
*type = SCS_OS216_BINARY;
return TRUE;
case STATUS_INVALID_IMAGE_PROTECT:
*type = SCS_DOS_BINARY;
return TRUE;
case STATUS_INVALID_IMAGE_NOT_MZ:
if ((ptr = strrchrW( name, '.' )))
{
if (!strcmpiW( ptr, comW ))
{
*type = SCS_DOS_BINARY;
return TRUE;
}
if (!strcmpiW( ptr, pifW ))
{
*type = SCS_PIF_BINARY;
return TRUE;
}
}
return FALSE;
default:
return FALSE;
}
}
/***********************************************************************
* GetBinaryTypeA [KERNEL32.@]
* GetBinaryType [KERNEL32.@]
*
* See GetBinaryTypeW.
*/
BOOL WINAPI GetBinaryTypeA( LPCSTR lpApplicationName, LPDWORD lpBinaryType )
{
ANSI_STRING app_nameA;
NTSTATUS status;
TRACE("%s\n", debugstr_a(lpApplicationName));
/* Sanity check.
*/
if ( lpApplicationName == NULL || lpBinaryType == NULL )
return FALSE;
RtlInitAnsiString(&app_nameA, lpApplicationName);
status = RtlAnsiStringToUnicodeString(&NtCurrentTeb()->StaticUnicodeString,
&app_nameA, FALSE);
if (!status)
return GetBinaryTypeW(NtCurrentTeb()->StaticUnicodeString.Buffer, lpBinaryType);
SetLastError(RtlNtStatusToDosError(status));
return FALSE;
}
/***********************************************************************
* get_dll_system_path
*/
static const WCHAR *get_dll_system_path(void)
{
static WCHAR *cached_path;
if (!cached_path)
{
WCHAR *p, *path;
int len = 1;
len += 2 * GetSystemDirectoryW( NULL, 0 );
len += GetWindowsDirectoryW( NULL, 0 );
p = path = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
GetSystemDirectoryW( p, path + len - p);
p += strlenW(p);
/* if system directory ends in "32" add 16-bit version too */
if (p[-2] == '3' && p[-1] == '2')
{
*p++ = ';';
GetSystemDirectoryW( p, path + len - p);
p += strlenW(p) - 2;
}
*p++ = ';';
GetWindowsDirectoryW( p, path + len - p);
cached_path = path;
}
return cached_path;
}
/***********************************************************************
* get_dll_safe_mode
*/
static BOOL get_dll_safe_mode(void)
{
static const WCHAR keyW[] = {'\\','R','e','g','i','s','t','r','y','\\',
'M','a','c','h','i','n','e','\\',
'S','y','s','t','e','m','\\',
'C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
'C','o','n','t','r','o','l','\\',
'S','e','s','s','i','o','n',' ','M','a','n','a','g','e','r',0};
static const WCHAR valueW[] = {'S','a','f','e','D','l','l','S','e','a','r','c','h','M','o','d','e',0};
static int safe_mode = -1;
if (safe_mode == -1)
{
char buffer[offsetof(KEY_VALUE_PARTIAL_INFORMATION, Data[sizeof(DWORD)])];
KEY_VALUE_PARTIAL_INFORMATION *info = (KEY_VALUE_PARTIAL_INFORMATION *)buffer;
OBJECT_ATTRIBUTES attr;
UNICODE_STRING nameW;
HANDLE hkey;
DWORD size = sizeof(buffer);
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.ObjectName = &nameW;
attr.Attributes = 0;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
safe_mode = 1;
RtlInitUnicodeString( &nameW, keyW );
if (!NtOpenKey( &hkey, KEY_READ, &attr ))
{
RtlInitUnicodeString( &nameW, valueW );
if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, buffer, size, &size ) &&
info->Type == REG_DWORD && info->DataLength == sizeof(DWORD))
safe_mode = !!*(DWORD *)info->Data;
NtClose( hkey );
}
if (!safe_mode) TRACE( "SafeDllSearchMode disabled through the registry\n" );
}
return safe_mode;
}
/******************************************************************
* get_module_path_end
*
* Returns the end of the directory component of the module path.
*/
static inline const WCHAR *get_module_path_end(const WCHAR *module)
{
const WCHAR *p;
const WCHAR *mod_end = module;
if (!module) return mod_end;
if ((p = strrchrW( mod_end, '\\' ))) mod_end = p;
if ((p = strrchrW( mod_end, '/' ))) mod_end = p;
if (mod_end == module + 2 && module[1] == ':') mod_end++;
if (mod_end == module && module[0] && module[1] == ':') mod_end += 2;
return mod_end;
}
/******************************************************************
* append_path_len
*
* Append a counted string to the load path. Helper for MODULE_get_dll_load_path.
*/
static inline WCHAR *append_path_len( WCHAR *p, const WCHAR *str, DWORD len )
{
if (!len) return p;
memcpy( p, str, len * sizeof(WCHAR) );
p[len] = ';';
return p + len + 1;
}
/******************************************************************
* append_path
*
* Append a string to the load path. Helper for MODULE_get_dll_load_path.
*/
static inline WCHAR *append_path( WCHAR *p, const WCHAR *str )
{
return append_path_len( p, str, strlenW(str) );
}
/******************************************************************
* MODULE_get_dll_load_path
*
* Compute the load path to use for a given dll.
* Returned pointer must be freed by caller.
*/
WCHAR *MODULE_get_dll_load_path( LPCWSTR module, int safe_mode )
{
static const WCHAR pathW[] = {'P','A','T','H',0};
static const WCHAR dotW[] = {'.',0};
const WCHAR *system_path = get_dll_system_path();
const WCHAR *mod_end = NULL;
UNICODE_STRING name, value;
WCHAR *p, *ret;
int len = 0, path_len = 0;
/* adjust length for module name */
if (module)
mod_end = get_module_path_end( module );
/* if module is NULL or doesn't contain a path, fall back to directory
* process was loaded from */
if (module == mod_end)
{
module = NtCurrentTeb()->Peb->ProcessParameters->ImagePathName.Buffer;
mod_end = get_module_path_end( module );
}
len += (mod_end - module) + 1;
len += strlenW( system_path ) + 2;
/* get the PATH variable */
RtlInitUnicodeString( &name, pathW );
value.Length = 0;
value.MaximumLength = 0;
value.Buffer = NULL;
if (RtlQueryEnvironmentVariable_U( NULL, &name, &value ) == STATUS_BUFFER_TOO_SMALL)
path_len = value.Length;
RtlEnterCriticalSection( &dlldir_section );
if (safe_mode == -1) safe_mode = get_dll_safe_mode();
if (dll_directory) len += strlenW(dll_directory) + 1;
else len += 2; /* current directory */
if ((p = ret = HeapAlloc( GetProcessHeap(), 0, path_len + len * sizeof(WCHAR) )))
{
if (module) p = append_path_len( p, module, mod_end - module );
if (dll_directory) p = append_path( p, dll_directory );
else if (!safe_mode) p = append_path( p, dotW );
p = append_path( p, system_path );
if (!dll_directory && safe_mode) p = append_path( p, dotW );
}
RtlLeaveCriticalSection( &dlldir_section );
if (!ret) return NULL;
value.Buffer = p;
value.MaximumLength = path_len;
while (RtlQueryEnvironmentVariable_U( NULL, &name, &value ) == STATUS_BUFFER_TOO_SMALL)
{
WCHAR *new_ptr;
/* grow the buffer and retry */
path_len = value.Length;
if (!(new_ptr = HeapReAlloc( GetProcessHeap(), 0, ret, path_len + len * sizeof(WCHAR) )))
{
HeapFree( GetProcessHeap(), 0, ret );
return NULL;
}
value.Buffer = new_ptr + (value.Buffer - ret);
value.MaximumLength = path_len;
ret = new_ptr;
}
value.Buffer[value.Length / sizeof(WCHAR)] = 0;
return ret;
}
/******************************************************************
* get_dll_load_path_search_flags
*/
static WCHAR *get_dll_load_path_search_flags( LPCWSTR module, DWORD flags )
{
const WCHAR *image = NULL, *mod_end, *image_end;
struct dll_dir_entry *dir;
WCHAR *p, *ret;
int len = 1;
if (flags & LOAD_LIBRARY_SEARCH_DEFAULT_DIRS)
flags |= (LOAD_LIBRARY_SEARCH_APPLICATION_DIR |
LOAD_LIBRARY_SEARCH_USER_DIRS |
LOAD_LIBRARY_SEARCH_SYSTEM32);
if (flags & LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR)
{
DWORD type = RtlDetermineDosPathNameType_U( module );
if (type != ABSOLUTE_DRIVE_PATH && type != ABSOLUTE_PATH)
{
SetLastError( ERROR_INVALID_PARAMETER );
return NULL;
}
mod_end = get_module_path_end( module );
len += (mod_end - module) + 1;
}
else module = NULL;
RtlEnterCriticalSection( &dlldir_section );
if (flags & LOAD_LIBRARY_SEARCH_APPLICATION_DIR)
{
image = NtCurrentTeb()->Peb->ProcessParameters->ImagePathName.Buffer;
image_end = get_module_path_end( image );
len += (image_end - image) + 1;
}
if (flags & LOAD_LIBRARY_SEARCH_USER_DIRS)
{
LIST_FOR_EACH_ENTRY( dir, &dll_dir_list, struct dll_dir_entry, entry )
len += strlenW( dir->dir ) + 1;
if (dll_directory) len += strlenW(dll_directory) + 1;
}
if (flags & LOAD_LIBRARY_SEARCH_SYSTEM32) len += GetSystemDirectoryW( NULL, 0 );
if ((p = ret = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) )))
{
if (module) p = append_path_len( p, module, mod_end - module );
if (image) p = append_path_len( p, image, image_end - image );
if (flags & LOAD_LIBRARY_SEARCH_USER_DIRS)
{
LIST_FOR_EACH_ENTRY( dir, &dll_dir_list, struct dll_dir_entry, entry )
p = append_path( p, dir->dir );
if (dll_directory) p = append_path( p, dll_directory );
}
if (flags & LOAD_LIBRARY_SEARCH_SYSTEM32) GetSystemDirectoryW( p, ret + len - p );
else
{
if (p > ret) p--;
*p = 0;
}
}
RtlLeaveCriticalSection( &dlldir_section );
return ret;
}
/******************************************************************
* load_library_as_datafile
*/
static BOOL load_library_as_datafile( LPCWSTR name, HMODULE *hmod, DWORD flags )
{
static const WCHAR dotDLL[] = {'.','d','l','l',0};
WCHAR filenameW[MAX_PATH];
HANDLE hFile = INVALID_HANDLE_VALUE;
HANDLE mapping;
HMODULE module = 0;
DWORD protect = PAGE_READONLY;
DWORD sharing = FILE_SHARE_READ | FILE_SHARE_DELETE;
*hmod = 0;
if (flags & LOAD_LIBRARY_AS_IMAGE_RESOURCE) protect |= SEC_IMAGE;
if (SearchPathW( NULL, name, dotDLL, ARRAY_SIZE( filenameW ), filenameW, NULL ))
{
hFile = CreateFileW( filenameW, GENERIC_READ, sharing, NULL, OPEN_EXISTING, 0, 0 );
}
if (hFile == INVALID_HANDLE_VALUE) return FALSE;
mapping = CreateFileMappingW( hFile, NULL, protect, 0, 0, NULL );
if (!mapping) goto failed;
module = MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 );
CloseHandle( mapping );
if (!module) goto failed;
if (!(flags & LOAD_LIBRARY_AS_IMAGE_RESOURCE))
{
/* make sure it's a valid PE file */
if (!RtlImageNtHeader( module )) goto failed;
*hmod = (HMODULE)((char *)module + 1); /* set bit 0 for data file module */
if (flags & LOAD_LIBRARY_AS_DATAFILE_EXCLUSIVE)
{
struct exclusive_datafile *file = HeapAlloc( GetProcessHeap(), 0, sizeof(*file) );
if (!file) goto failed;
file->module = *hmod;
file->file = hFile;
list_add_head( &exclusive_datafile_list, &file->entry );
TRACE( "delaying close %p for module %p\n", file->file, file->module );
return TRUE;
}
}
else *hmod = (HMODULE)((char *)module + 2); /* set bit 1 for image resource module */
CloseHandle( hFile );
return TRUE;
failed:
if (module) UnmapViewOfFile( module );
CloseHandle( hFile );
return FALSE;
}
/******************************************************************
* load_library
*
* Helper for LoadLibraryExA/W.
*/
static HMODULE load_library( const UNICODE_STRING *libname, DWORD flags )
{
NTSTATUS nts;
HMODULE hModule;
WCHAR *load_path;
const DWORD load_library_search_flags = (LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR |
LOAD_LIBRARY_SEARCH_APPLICATION_DIR |
LOAD_LIBRARY_SEARCH_USER_DIRS |
LOAD_LIBRARY_SEARCH_SYSTEM32 |
LOAD_LIBRARY_SEARCH_DEFAULT_DIRS);
const DWORD unsupported_flags = (LOAD_IGNORE_CODE_AUTHZ_LEVEL |
LOAD_LIBRARY_REQUIRE_SIGNED_TARGET);
if( flags & unsupported_flags)
FIXME("unsupported flag(s) used (flags: 0x%08x)\n", flags);
if (flags & LOAD_WITH_ALTERED_SEARCH_PATH)
{
if (flags & load_library_search_flags)
{
SetLastError( ERROR_INVALID_PARAMETER );
return 0;
}
if (default_search_flags) flags |= default_search_flags | LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR;
}
else if (!(flags & load_library_search_flags)) flags |= default_search_flags;
if (flags & load_library_search_flags)
load_path = get_dll_load_path_search_flags( libname->Buffer, flags );
else
load_path = MODULE_get_dll_load_path( flags & LOAD_WITH_ALTERED_SEARCH_PATH ? libname->Buffer : NULL, -1 );
if (!load_path) return 0;
if (flags & (LOAD_LIBRARY_AS_DATAFILE | LOAD_LIBRARY_AS_DATAFILE_EXCLUSIVE | LOAD_LIBRARY_AS_IMAGE_RESOURCE))
{
ULONG_PTR magic;
LdrLockLoaderLock( 0, NULL, &magic );
if (!LdrGetDllHandle( load_path, flags, libname, &hModule ))
{
LdrAddRefDll( 0, hModule );
LdrUnlockLoaderLock( 0, magic );
goto done;
}
if (load_library_as_datafile( libname->Buffer, &hModule, flags ))
{
LdrUnlockLoaderLock( 0, magic );
goto done;
}
LdrUnlockLoaderLock( 0, magic );
flags |= DONT_RESOLVE_DLL_REFERENCES; /* Just in case */
/* Fallback to normal behaviour */
}
nts = LdrLoadDll( load_path, flags, libname, &hModule );
if (nts != STATUS_SUCCESS)
{
hModule = 0;
if (nts == STATUS_DLL_NOT_FOUND && (GetVersion() & 0x80000000))
SetLastError( ERROR_DLL_NOT_FOUND );
else
SetLastError( RtlNtStatusToDosError( nts ) );
}
done:
HeapFree( GetProcessHeap(), 0, load_path );
return hModule;
}
/******************************************************************
* LoadLibraryExA (KERNEL32.@)
*
* Load a dll file into the process address space.
*
* PARAMS
* libname [I] Name of the file to load
* hfile [I] Reserved, must be 0.
* flags [I] Flags for loading the dll
*
* RETURNS
* Success: A handle to the loaded dll.
* Failure: A NULL handle. Use GetLastError() to determine the cause.
*
* NOTES
* The HFILE parameter is not used and marked reserved in the SDK. I can
* only guess that it should force a file to be mapped, but I rather
* ignore the parameter because it would be extremely difficult to
* integrate this with different types of module representations.
*/
HMODULE WINAPI DECLSPEC_HOTPATCH LoadLibraryExA(LPCSTR libname, HANDLE hfile, DWORD flags)
{
WCHAR *libnameW;
if (!(libnameW = FILE_name_AtoW( libname, FALSE ))) return 0;
return LoadLibraryExW( libnameW, hfile, flags );
}
/***********************************************************************
* LoadLibraryExW (KERNEL32.@)
*
* Unicode version of LoadLibraryExA.
*/
HMODULE WINAPI DECLSPEC_HOTPATCH LoadLibraryExW(LPCWSTR libnameW, HANDLE hfile, DWORD flags)
{
UNICODE_STRING wstr;
HMODULE res;
if (!libnameW)
{
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
RtlInitUnicodeString( &wstr, libnameW );
if (wstr.Buffer[wstr.Length/sizeof(WCHAR) - 1] != ' ')
return load_library( &wstr, flags );
/* Library name has trailing spaces */
RtlCreateUnicodeString( &wstr, libnameW );
while (wstr.Length > sizeof(WCHAR) &&
wstr.Buffer[wstr.Length/sizeof(WCHAR) - 1] == ' ')
{
wstr.Length -= sizeof(WCHAR);
}
wstr.Buffer[wstr.Length/sizeof(WCHAR)] = '\0';
res = load_library( &wstr, flags );
RtlFreeUnicodeString( &wstr );
return res;
}
/***********************************************************************
* LoadLibraryA (KERNEL32.@)
*
* Load a dll file into the process address space.
*
* PARAMS
* libname [I] Name of the file to load
*
* RETURNS
* Success: A handle to the loaded dll.
* Failure: A NULL handle. Use GetLastError() to determine the cause.
*
* NOTES
* See LoadLibraryExA().
*/
HMODULE WINAPI DECLSPEC_HOTPATCH LoadLibraryA(LPCSTR libname)
{
return LoadLibraryExA(libname, 0, 0);
}
/***********************************************************************
* LoadLibraryW (KERNEL32.@)
*
* Unicode version of LoadLibraryA.
*/
HMODULE WINAPI DECLSPEC_HOTPATCH LoadLibraryW(LPCWSTR libnameW)
{
return LoadLibraryExW(libnameW, 0, 0);
}
/***********************************************************************
* FreeLibrary (KERNEL32.@)
*
* Free a dll loaded into the process address space.
*
* PARAMS
* hLibModule [I] Handle to the dll returned by LoadLibraryA().
*
* RETURNS
* Success: TRUE. The dll is removed if it is not still in use.
* Failure: FALSE. Use GetLastError() to determine the cause.
*/
BOOL WINAPI DECLSPEC_HOTPATCH FreeLibrary(HINSTANCE hLibModule)
{
BOOL retv = FALSE;
NTSTATUS nts;
if (!hLibModule)
{
SetLastError( ERROR_INVALID_HANDLE );
return FALSE;
}
if ((ULONG_PTR)hLibModule & 3) /* this is a datafile module */
{
void *ptr = (void *)((ULONG_PTR)hLibModule & ~3);
if (!RtlImageNtHeader( ptr ))
{
SetLastError( ERROR_BAD_EXE_FORMAT );
return FALSE;
}
if ((ULONG_PTR)hLibModule & 1)
{
struct exclusive_datafile *file;
ULONG_PTR magic;
LdrLockLoaderLock( 0, NULL, &magic );
LIST_FOR_EACH_ENTRY( file, &exclusive_datafile_list, struct exclusive_datafile, entry )
{
if (file->module != hLibModule) continue;
TRACE( "closing %p for module %p\n", file->file, file->module );
CloseHandle( file->file );
list_remove( &file->entry );
HeapFree( GetProcessHeap(), 0, file );
break;
}
LdrUnlockLoaderLock( 0, magic );
}
return UnmapViewOfFile( ptr );
}
if ((nts = LdrUnloadDll( hLibModule )) == STATUS_SUCCESS) retv = TRUE;
else SetLastError( RtlNtStatusToDosError( nts ) );
return retv;
}
/***********************************************************************
* GetProcAddress (KERNEL32.@)
*
* Find the address of an exported symbol in a loaded dll.
*
* PARAMS
* hModule [I] Handle to the dll returned by LoadLibraryA().
* function [I] Name of the symbol, or an integer ordinal number < 16384
*
* RETURNS
* Success: A pointer to the symbol in the process address space.
* Failure: NULL. Use GetLastError() to determine the cause.
*/
FARPROC get_proc_address( HMODULE hModule, LPCSTR function )
{
NTSTATUS nts;
FARPROC fp;
if (!hModule) hModule = NtCurrentTeb()->Peb->ImageBaseAddress;
if ((ULONG_PTR)function >> 16)
{
ANSI_STRING str;
RtlInitAnsiString( &str, function );
nts = LdrGetProcedureAddress( hModule, &str, 0, (void**)&fp );
}
else
nts = LdrGetProcedureAddress( hModule, NULL, LOWORD(function), (void**)&fp );
if (nts != STATUS_SUCCESS)
{
SetLastError( RtlNtStatusToDosError( nts ) );
fp = NULL;
}
return fp;
}
#ifdef __x86_64__
/*
* Work around a Delphi bug on x86_64. When delay loading a symbol,
* Delphi saves rcx, rdx, r8 and r9 to the stack. It then calls
* GetProcAddress(), pops the saved registers and calls the function.
* This works fine if all of the parameters are ints. However, since
* it does not save xmm0 - 3, it relies on GetProcAddress() preserving
* these registers if the function takes floating point parameters.
* This wrapper saves xmm0 - 3 to the stack.
*/
extern FARPROC get_proc_address_wrapper( HMODULE module, LPCSTR function );
__ASM_GLOBAL_FUNC( get_proc_address_wrapper,
"pushq %rbp\n\t"
__ASM_SEH(".seh_pushreg %rbp\n\t")
__ASM_CFI(".cfi_adjust_cfa_offset 8\n\t")
__ASM_CFI(".cfi_rel_offset %rbp,0\n\t")
"movq %rsp,%rbp\n\t"
__ASM_SEH(".seh_setframe %rbp,0\n\t")
__ASM_CFI(".cfi_def_cfa_register %rbp\n\t")
"subq $0x40,%rsp\n\t"
__ASM_SEH(".seh_stackalloc 0x40\n\t")
__ASM_SEH(".seh_endprologue\n\t")
"movaps %xmm0,-0x10(%rbp)\n\t"
"movaps %xmm1,-0x20(%rbp)\n\t"
"movaps %xmm2,-0x30(%rbp)\n\t"
"movaps %xmm3,-0x40(%rbp)\n\t"
"call " __ASM_NAME("get_proc_address") "\n\t"
"movaps -0x40(%rbp), %xmm3\n\t"
"movaps -0x30(%rbp), %xmm2\n\t"
"movaps -0x20(%rbp), %xmm1\n\t"
"movaps -0x10(%rbp), %xmm0\n\t"
"leaq 0(%rbp),%rsp\n\t"
__ASM_CFI(".cfi_def_cfa_register %rsp\n\t")
"popq %rbp\n\t"
__ASM_CFI(".cfi_adjust_cfa_offset -8\n\t")
__ASM_CFI(".cfi_same_value %rbp\n\t")
"ret" )
#else /* __x86_64__ */
static inline FARPROC get_proc_address_wrapper( HMODULE module, LPCSTR function )
{
return get_proc_address( module, function );
}
#endif /* __x86_64__ */
FARPROC WINAPI GetProcAddress( HMODULE hModule, LPCSTR function )
{
return get_proc_address_wrapper( hModule, function );
}
typedef struct _PEB32
{
BOOLEAN InheritedAddressSpace;
BOOLEAN ReadImageFileExecOptions;
BOOLEAN BeingDebugged;
BOOLEAN SpareBool;
DWORD Mutant;
DWORD ImageBaseAddress;
DWORD LdrData;
} PEB32;
typedef struct _LIST_ENTRY32
{
DWORD Flink;
DWORD Blink;
} LIST_ENTRY32;
typedef struct _PEB_LDR_DATA32
{
ULONG Length;
BOOLEAN Initialized;
DWORD SsHandle;
LIST_ENTRY32 InLoadOrderModuleList;
} PEB_LDR_DATA32;
typedef struct _UNICODE_STRING32
{
USHORT Length;
USHORT MaximumLength;
DWORD Buffer;
} UNICODE_STRING32;
typedef struct _LDR_MODULE32
{
LIST_ENTRY32 InLoadOrderModuleList;
LIST_ENTRY32 InMemoryOrderModuleList;
LIST_ENTRY32 InInitializationOrderModuleList;
DWORD BaseAddress;
DWORD EntryPoint;
ULONG SizeOfImage;
UNICODE_STRING32 FullDllName;
UNICODE_STRING32 BaseDllName;
} LDR_MODULE32;
typedef struct {
HANDLE process;
PLIST_ENTRY head, current;
LDR_MODULE ldr_module;
BOOL wow64;
LDR_MODULE32 ldr_module32;
} MODULE_ITERATOR;
static BOOL init_module_iterator(MODULE_ITERATOR *iter, HANDLE process)
{
PROCESS_BASIC_INFORMATION pbi;
PPEB_LDR_DATA ldr_data;
NTSTATUS status;
if (!IsWow64Process(process, &iter->wow64))
return FALSE;
/* Get address of PEB */
status = NtQueryInformationProcess(process, ProcessBasicInformation,
&pbi, sizeof(pbi), NULL);
if (status != STATUS_SUCCESS)
{
SetLastError(RtlNtStatusToDosError(status));
return FALSE;
}
if (sizeof(void *) == 8 && iter->wow64)
{
PEB_LDR_DATA32 *ldr_data32_ptr;
DWORD ldr_data32, first_module;
PEB32 *peb32;
peb32 = (PEB32 *)(DWORD_PTR)pbi.PebBaseAddress;
if (!ReadProcessMemory(process, &peb32->LdrData, &ldr_data32,
sizeof(ldr_data32), NULL))
return FALSE;
ldr_data32_ptr = (PEB_LDR_DATA32 *)(DWORD_PTR) ldr_data32;
if (!ReadProcessMemory(process,
&ldr_data32_ptr->InLoadOrderModuleList.Flink,
&first_module, sizeof(first_module), NULL))
return FALSE;
iter->head = (LIST_ENTRY *)&ldr_data32_ptr->InLoadOrderModuleList;
iter->current = (LIST_ENTRY *)(DWORD_PTR) first_module;
iter->process = process;
return TRUE;
}
/* Read address of LdrData from PEB */
if (!ReadProcessMemory(process, &pbi.PebBaseAddress->LdrData,
&ldr_data, sizeof(ldr_data), NULL))
return FALSE;
/* Read address of first module from LdrData */
if (!ReadProcessMemory(process,
&ldr_data->InLoadOrderModuleList.Flink,
&iter->current, sizeof(iter->current), NULL))
return FALSE;
iter->head = &ldr_data->InLoadOrderModuleList;
iter->process = process;
return TRUE;
}
static int module_iterator_next(MODULE_ITERATOR *iter)
{
if (iter->current == iter->head)
return 0;
if (sizeof(void *) == 8 && iter->wow64)
{
LIST_ENTRY32 *entry32 = (LIST_ENTRY32 *)iter->current;
if (!ReadProcessMemory(iter->process,
CONTAINING_RECORD(entry32, LDR_MODULE32, InLoadOrderModuleList),
&iter->ldr_module32, sizeof(iter->ldr_module32), NULL))
return -1;
iter->current = (LIST_ENTRY *)(DWORD_PTR) iter->ldr_module32.InLoadOrderModuleList.Flink;
return 1;
}
if (!ReadProcessMemory(iter->process,
CONTAINING_RECORD(iter->current, LDR_MODULE, InLoadOrderModuleList),
&iter->ldr_module, sizeof(iter->ldr_module), NULL))
return -1;
iter->current = iter->ldr_module.InLoadOrderModuleList.Flink;
return 1;
}
static BOOL get_ldr_module(HANDLE process, HMODULE module, LDR_MODULE *ldr_module)
{
MODULE_ITERATOR iter;
INT ret;
if (!init_module_iterator(&iter, process))
return FALSE;
while ((ret = module_iterator_next(&iter)) > 0)
/* When hModule is NULL we return the process image - which will be
* the first module since our iterator uses InLoadOrderModuleList */
if (!module || module == iter.ldr_module.BaseAddress)
{
*ldr_module = iter.ldr_module;
return TRUE;
}
if (ret == 0)
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
static BOOL get_ldr_module32(HANDLE process, HMODULE module, LDR_MODULE32 *ldr_module)
{
MODULE_ITERATOR iter;
INT ret;
if (!init_module_iterator(&iter, process))
return FALSE;
while ((ret = module_iterator_next(&iter)) > 0)
/* When hModule is NULL we return the process image - which will be
* the first module since our iterator uses InLoadOrderModuleList */
if (!module || (DWORD)(DWORD_PTR) module == iter.ldr_module32.BaseAddress)
{
*ldr_module = iter.ldr_module32;
return TRUE;
}
if (ret == 0)
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
/***********************************************************************
* K32EnumProcessModules (KERNEL32.@)
*
* NOTES
* Returned list is in load order.
*/
BOOL WINAPI K32EnumProcessModules(HANDLE process, HMODULE *lphModule,
DWORD cb, DWORD *needed)
{
MODULE_ITERATOR iter;
DWORD size = 0;
INT ret;
if (!init_module_iterator(&iter, process))
return FALSE;
if (cb && !lphModule)
{
SetLastError(ERROR_NOACCESS);
return FALSE;
}
while ((ret = module_iterator_next(&iter)) > 0)
{
if (cb >= sizeof(HMODULE))
{
if (sizeof(void *) == 8 && iter.wow64)
*lphModule++ = (HMODULE) (DWORD_PTR)iter.ldr_module32.BaseAddress;
else
*lphModule++ = iter.ldr_module.BaseAddress;
cb -= sizeof(HMODULE);
}
size += sizeof(HMODULE);
}
if (!needed)
{
SetLastError(ERROR_NOACCESS);
return FALSE;
}
*needed = size;
return ret == 0;
}
/***********************************************************************
* K32EnumProcessModulesEx (KERNEL32.@)
*
* NOTES
* Returned list is in load order.
*/
BOOL WINAPI K32EnumProcessModulesEx(HANDLE process, HMODULE *lphModule,
DWORD cb, DWORD *needed, DWORD filter)
{
FIXME("(%p, %p, %d, %p, %d) semi-stub\n",
process, lphModule, cb, needed, filter);
return K32EnumProcessModules(process, lphModule, cb, needed);
}
/***********************************************************************
* K32GetModuleBaseNameW (KERNEL32.@)
*/
DWORD WINAPI K32GetModuleBaseNameW(HANDLE process, HMODULE module,
LPWSTR base_name, DWORD size)
{
LDR_MODULE ldr_module;
BOOL wow64;
if (!IsWow64Process(process, &wow64))
return 0;
if (sizeof(void *) == 8 && wow64)
{
LDR_MODULE32 ldr_module32;
if (!get_ldr_module32(process, module, &ldr_module32))
return 0;
size = min(ldr_module32.BaseDllName.Length / sizeof(WCHAR), size);
if (!ReadProcessMemory(process, (void *)(DWORD_PTR)ldr_module32.BaseDllName.Buffer,
base_name, size * sizeof(WCHAR), NULL))
return 0;
}
else
{
if (!get_ldr_module(process, module, &ldr_module))
return 0;
size = min(ldr_module.BaseDllName.Length / sizeof(WCHAR), size);
if (!ReadProcessMemory(process, ldr_module.BaseDllName.Buffer,
base_name, size * sizeof(WCHAR), NULL))
return 0;
}
base_name[size] = 0;
return size;
}
/***********************************************************************
* K32GetModuleBaseNameA (KERNEL32.@)
*/
DWORD WINAPI K32GetModuleBaseNameA(HANDLE process, HMODULE module,
LPSTR base_name, DWORD size)
{
WCHAR *base_name_w;
DWORD len, ret = 0;
if(!base_name || !size) {
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
base_name_w = HeapAlloc(GetProcessHeap(), 0, sizeof(WCHAR) * size);
if(!base_name_w)
return 0;
len = K32GetModuleBaseNameW(process, module, base_name_w, size);
TRACE("%d, %s\n", len, debugstr_w(base_name_w));
if (len)
{
ret = WideCharToMultiByte(CP_ACP, 0, base_name_w, len,
base_name, size, NULL, NULL);
if (ret < size) base_name[ret] = 0;
}
HeapFree(GetProcessHeap(), 0, base_name_w);
return ret;
}
/***********************************************************************
* K32GetModuleFileNameExW (KERNEL32.@)
*/
DWORD WINAPI K32GetModuleFileNameExW(HANDLE process, HMODULE module,
LPWSTR file_name, DWORD size)
{
LDR_MODULE ldr_module;
BOOL wow64;
DWORD len;
if (!size) return 0;
if (!IsWow64Process(process, &wow64))
return 0;
if (sizeof(void *) == 8 && wow64)
{
LDR_MODULE32 ldr_module32;
if (!get_ldr_module32(process, module, &ldr_module32))
return 0;
len = ldr_module32.FullDllName.Length / sizeof(WCHAR);
if (!ReadProcessMemory(process, (void *)(DWORD_PTR)ldr_module32.FullDllName.Buffer,
file_name, min( len, size ) * sizeof(WCHAR), NULL))
return 0;
}
else
{
if (!get_ldr_module(process, module, &ldr_module))
return 0;
len = ldr_module.FullDllName.Length / sizeof(WCHAR);
if (!ReadProcessMemory(process, ldr_module.FullDllName.Buffer,
file_name, min( len, size ) * sizeof(WCHAR), NULL))
return 0;
}
if (len < size)
{
file_name[len] = 0;
return len;
}
else
{
file_name[size - 1] = 0;
return size;
}
}
/***********************************************************************
* K32GetModuleFileNameExA (KERNEL32.@)
*/
DWORD WINAPI K32GetModuleFileNameExA(HANDLE process, HMODULE module,
LPSTR file_name, DWORD size)
{
WCHAR *ptr;
DWORD len;
TRACE("(hProcess=%p, hModule=%p, %p, %d)\n", process, module, file_name, size);
if (!file_name || !size)
{
SetLastError( ERROR_INVALID_PARAMETER );
return 0;
}
if ( process == GetCurrentProcess() )
{
len = GetModuleFileNameA( module, file_name, size );
file_name[size - 1] = '\0';
return len;
}
if (!(ptr = HeapAlloc(GetProcessHeap(), 0, size * sizeof(WCHAR)))) return 0;
len = K32GetModuleFileNameExW(process, module, ptr, size);
if (!len)
{
file_name[0] = '\0';
}
else
{
if (!WideCharToMultiByte( CP_ACP, 0, ptr, -1, file_name, size, NULL, NULL ))
{
file_name[size - 1] = 0;
len = size;
}
else if (len < size) len = strlen( file_name );
}
HeapFree(GetProcessHeap(), 0, ptr);
return len;
}
/***********************************************************************
* K32GetModuleInformation (KERNEL32.@)
*/
BOOL WINAPI K32GetModuleInformation(HANDLE process, HMODULE module,
MODULEINFO *modinfo, DWORD cb)
{
LDR_MODULE ldr_module;
BOOL wow64;
if (cb < sizeof(MODULEINFO))
{
SetLastError(ERROR_INSUFFICIENT_BUFFER);
return FALSE;
}
if (!IsWow64Process(process, &wow64))
return FALSE;
if (sizeof(void *) == 8 && wow64)
{
LDR_MODULE32 ldr_module32;
if (!get_ldr_module32(process, module, &ldr_module32))
return FALSE;
modinfo->lpBaseOfDll = (void *)(DWORD_PTR)ldr_module32.BaseAddress;
modinfo->SizeOfImage = ldr_module32.SizeOfImage;
modinfo->EntryPoint = (void *)(DWORD_PTR)ldr_module32.EntryPoint;
}
else
{
if (!get_ldr_module(process, module, &ldr_module))
return FALSE;
modinfo->lpBaseOfDll = ldr_module.BaseAddress;
modinfo->SizeOfImage = ldr_module.SizeOfImage;
modinfo->EntryPoint = ldr_module.EntryPoint;
}
return TRUE;
}
#ifdef __i386__
/***********************************************************************
* __wine_dll_register_16 (KERNEL32.@)
*
* No longer used.
*/
void __wine_dll_register_16( const IMAGE_DOS_HEADER *header, const char *file_name )
{
ERR( "loading old style 16-bit dll %s no longer supported\n", file_name );
}
/***********************************************************************
* __wine_dll_unregister_16 (KERNEL32.@)
*
* No longer used.
*/
void __wine_dll_unregister_16( const IMAGE_DOS_HEADER *header )
{
}
#endif
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