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wine/loader/pe_image.c
Alexandre Julliard 0562539d18 Implemented file sharing checks in the server. 
Added set file time server request.
Overall clean up of the file handling (DOS device handling is now
broken, should be redone).
1999-01-03 11:55:56 +00:00

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/*
* Copyright 1994 Eric Youndale & Erik Bos
* Copyright 1995 Martin von Löwis
* Copyright 1996-98 Marcus Meissner
*
* based on Eric Youndale's pe-test and:
*
* ftp.microsoft.com:/pub/developer/MSDN/CD8/PEFILE.ZIP
* make that:
* ftp.microsoft.com:/developr/MSDN/OctCD/PEFILE.ZIP
*/
/* Notes:
* Before you start changing something in this file be aware of the following:
*
* - There are several functions called recursively. In a very subtle and
* obscure way. DLLs can reference each other recursively etc.
* - If you want to enhance, speed up or clean up something in here, think
* twice WHY it is implemented in that strange way. There is usually a reason.
* Though sometimes it might just be lazyness ;)
* - In PE_MapImage, right before fixup_imports() all external and internal
* state MUST be correct since this function can be called with the SAME image
* AGAIN. (Thats recursion for you.) That means MODREF.module and
* NE_MODULE.module32.
* - No, you (usually) cannot use Linux mmap() to mmap() the images directly.
*
* The problem is, that there is not direct 1:1 mapping from a diskimage and
* a memoryimage. The headers at the start are mapped linear, but the sections
* are not. For x86 the sections are 512 byte aligned in file and 4096 byte
* aligned in memory. Linux likes them 4096 byte aligned in memory (due to
* x86 pagesize, this cannot be fixed without a rather large kernel rewrite)
* and 'blocksize' file-aligned (offsets). Since we have 512/1024/2048 (CDROM)
* and other byte blocksizes, we can't do this. However, this could be less
* difficult to support... (See mm/filemap.c).
* - All those function map things into a new addresspace. From the wrong
* process and the wrong thread. So calling other API functions will mess
* things up badly sometimes.
*/
#include <errno.h>
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include "windows.h"
#include "winbase.h"
#include "callback.h"
#include "file.h"
#include "heap.h"
#include "neexe.h"
#include "peexe.h"
#include "process.h"
#include "thread.h"
#include "pe_image.h"
#include "module.h"
#include "global.h"
#include "task.h"
#include "snoop.h"
#include "debug.h"
/* convert PE image VirtualAddress to Real Address */
#define RVA(x) ((unsigned int)load_addr+(unsigned int)(x))
#define AdjustPtr(ptr,delta) ((char *)(ptr) + (delta))
void dump_exports( HMODULE32 hModule )
{
char *Module;
int i, j;
u_short *ordinal;
u_long *function,*functions;
u_char **name;
unsigned int load_addr = hModule;
DWORD rva_start = PE_HEADER(hModule)->OptionalHeader
.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress;
DWORD rva_end = rva_start + PE_HEADER(hModule)->OptionalHeader
.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size;
IMAGE_EXPORT_DIRECTORY *pe_exports = (IMAGE_EXPORT_DIRECTORY*)RVA(rva_start);
Module = (char*)RVA(pe_exports->Name);
TRACE(win32,"*******EXPORT DATA*******\n");
TRACE(win32,"Module name is %s, %ld functions, %ld names\n",
Module, pe_exports->NumberOfFunctions, pe_exports->NumberOfNames);
ordinal=(u_short*) RVA(pe_exports->AddressOfNameOrdinals);
functions=function=(u_long*) RVA(pe_exports->AddressOfFunctions);
name=(u_char**) RVA(pe_exports->AddressOfNames);
TRACE(win32," Ord RVA Addr Name\n" );
for (i=0;i<pe_exports->NumberOfFunctions;i++, function++)
{
if (!*function) continue; /* No such function */
if (TRACE_ON(win32)){
dbg_decl_str(win32, 1024);
dsprintf(win32,"%4ld %08lx %08x",
i + pe_exports->Base, *function, RVA(*function) );
/* Check if we have a name for it */
for (j = 0; j < pe_exports->NumberOfNames; j++)
if (ordinal[j] == i)
dsprintf(win32, " %s", (char*)RVA(name[j]) );
if ((*function >= rva_start) && (*function <= rva_end))
dsprintf(win32, " (forwarded -> %s)", (char *)RVA(*function));
TRACE(win32,"%s\n", dbg_str(win32));
}
}
}
/* Look up the specified function or ordinal in the exportlist:
* If it is a string:
* - look up the name in the Name list.
* - look up the ordinal with that index.
* - use the ordinal as offset into the functionlist
* If it is a ordinal:
* - use ordinal-pe_export->Base as offset into the functionlist
*/
FARPROC32 PE_FindExportedFunction(
PDB32 *process, /* [in] process context */
WINE_MODREF *wm, /* [in] WINE modreference */
LPCSTR funcName, /* [in] function name */
BOOL32 snoop )
{
u_short * ordinal;
u_long * function;
u_char ** name, *ename;
int i;
PE_MODREF *pem = &(wm->binfmt.pe);
IMAGE_EXPORT_DIRECTORY *exports = pem->pe_export;
unsigned int load_addr = wm->module;
u_long rva_start, rva_end, addr;
char * forward;
if (HIWORD(funcName))
TRACE(win32,"(%s)\n",funcName);
else
TRACE(win32,"(%d)\n",(int)funcName);
if (!exports) {
/* Not a fatal problem, some apps do
* GetProcAddress(0,"RegisterPenApp") which triggers this
* case.
*/
WARN(win32,"Module %08x(%s)/MODREF %p doesn't have a exports table.\n",wm->module,wm->modname,pem);
return NULL;
}
ordinal = (u_short*) RVA(exports->AddressOfNameOrdinals);
function= (u_long*) RVA(exports->AddressOfFunctions);
name = (u_char **) RVA(exports->AddressOfNames);
forward = NULL;
rva_start = PE_HEADER(wm->module)->OptionalHeader
.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress;
rva_end = rva_start + PE_HEADER(wm->module)->OptionalHeader
.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size;
if (HIWORD(funcName)) {
for(i=0; i<exports->NumberOfNames; i++) {
ename=(char*)RVA(*name);
if(!strcmp(ename,funcName))
{
addr = function[*ordinal];
if (!addr) return NULL;
if ((addr < rva_start) || (addr >= rva_end))
return snoop? SNOOP_GetProcAddress32(wm->module,ename,*ordinal,(FARPROC32)RVA(addr))
: (FARPROC32)RVA(addr);
forward = (char *)RVA(addr);
break;
}
ordinal++;
name++;
}
} else {
int i;
if (LOWORD(funcName)-exports->Base > exports->NumberOfFunctions) {
TRACE(win32," ordinal %d out of range!\n",
LOWORD(funcName));
return NULL;
}
addr = function[(int)funcName-exports->Base];
if (!addr) return NULL;
ename = "";
if (name) {
for (i=0;i<exports->NumberOfNames;i++) {
ename = (char*)RVA(*name);
if (*ordinal == LOWORD(funcName)-exports->Base)
break;
ordinal++;
name++;
}
if (i==exports->NumberOfNames)
ename = "";
}
if ((addr < rva_start) || (addr >= rva_end))
return snoop? SNOOP_GetProcAddress32(wm->module,ename,(DWORD)funcName-exports->Base,(FARPROC32)RVA(addr))
: (FARPROC32)RVA(addr);
forward = (char *)RVA(addr);
}
if (forward)
{
HMODULE32 hMod;
char module[256];
char *end = strchr(forward, '.');
if (!end) return NULL;
assert(end-forward<256);
strncpy(module, forward, (end - forward));
module[end-forward] = 0;
hMod = MODULE_FindModule32(process,module);
assert(hMod);
return MODULE_GetProcAddress32( process, hMod, end + 1, snoop );
}
return NULL;
}
DWORD fixup_imports (PDB32 *process,WINE_MODREF *wm)
{
IMAGE_IMPORT_DESCRIPTOR *pe_imp;
WINE_MODREF *xwm;
PE_MODREF *pem;
unsigned int load_addr = wm->module;
int i,characteristics_detection=1;
char *modname;
assert(wm->type==MODULE32_PE);
pem = &(wm->binfmt.pe);
if (pem->pe_export)
modname = (char*) RVA(pem->pe_export->Name);
else
modname = "<unknown>";
/* OK, now dump the import list */
TRACE(win32, "Dumping imports list\n");
/* first, count the number of imported non-internal modules */
pe_imp = pem->pe_import;
if (!pe_imp)
ERR(win32, "no import directory????\n");
/* We assume that we have at least one import with !0 characteristics and
* detect broken imports with all characteristsics 0 (notably Borland) and
* switch the detection off for them.
*/
for (i = 0; pe_imp->Name ; pe_imp++) {
if (!i && !pe_imp->u.Characteristics)
characteristics_detection = 0;
if (characteristics_detection && !pe_imp->u.Characteristics)
break;
i++;
}
/* Allocate module dependency list */
wm->nDeps = i;
wm->deps = HeapAlloc(process->heap, 0, i*sizeof(WINE_MODREF *));
/* load the imported modules. They are automatically
* added to the modref list of the process.
*/
for (i = 0, pe_imp = pem->pe_import; pe_imp->Name ; pe_imp++) {
HMODULE32 hImpModule;
IMAGE_IMPORT_BY_NAME *pe_name;
PIMAGE_THUNK_DATA import_list,thunk_list;
char *name = (char *) RVA(pe_imp->Name);
if (characteristics_detection && !pe_imp->u.Characteristics)
break;
/* don't use MODULE_Load, Win32 creates new task differently */
hImpModule = MODULE_LoadLibraryEx32A( name, process, 0, 0 );
if (!hImpModule) {
char *p,buffer[2000];
/* GetModuleFileName would use the wrong process, so don't use it */
strcpy(buffer,wm->shortname);
if (!(p = strrchr (buffer, '\\')))
p = buffer;
strcpy (p + 1, name);
hImpModule = MODULE_LoadLibraryEx32A( buffer, process, 0, 0 );
}
if (!hImpModule) {
ERR (module, "Module %s not found\n", name);
return 1;
}
xwm = MODULE32_LookupHMODULE(process, hImpModule);
assert( xwm );
wm->deps[i++] = xwm;
/* FIXME: forwarder entries ... */
if (pe_imp->u.OriginalFirstThunk != 0) { /* original MS style */
TRACE(win32, "Microsoft style imports used\n");
import_list =(PIMAGE_THUNK_DATA) RVA(pe_imp->u.OriginalFirstThunk);
thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
while (import_list->u1.Ordinal) {
if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal)) {
int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
TRACE(win32, "--- Ordinal %s,%d\n", name, ordinal);
thunk_list->u1.Function=MODULE_GetProcAddress32(
process, hImpModule, (LPCSTR)ordinal, TRUE
);
if (!thunk_list->u1.Function) {
ERR(win32,"No implementation for %s.%d, setting to 0xdeadbeef\n",
name, ordinal);
thunk_list->u1.Function = (FARPROC32)0xdeadbeef;
}
} else { /* import by name */
pe_name = (PIMAGE_IMPORT_BY_NAME)RVA(import_list->u1.AddressOfData);
TRACE(win32, "--- %s %s.%d\n", pe_name->Name, name, pe_name->Hint);
thunk_list->u1.Function=MODULE_GetProcAddress32(
process, hImpModule, pe_name->Name, TRUE
);
if (!thunk_list->u1.Function) {
ERR(win32,"No implementation for %s.%d(%s), setting to 0xdeadbeef\n",
name,pe_name->Hint,pe_name->Name);
thunk_list->u1.Function = (FARPROC32)0xdeadbeef;
}
}
import_list++;
thunk_list++;
}
} else { /* Borland style */
TRACE(win32, "Borland style imports used\n");
thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
while (thunk_list->u1.Ordinal) {
if (IMAGE_SNAP_BY_ORDINAL(thunk_list->u1.Ordinal)) {
/* not sure about this branch, but it seems to work */
int ordinal = IMAGE_ORDINAL(thunk_list->u1.Ordinal);
TRACE(win32,"--- Ordinal %s.%d\n",name,ordinal);
thunk_list->u1.Function=MODULE_GetProcAddress32(
process, hImpModule, (LPCSTR) ordinal, TRUE
);
if (!thunk_list->u1.Function) {
ERR(win32, "No implementation for %s.%d, setting to 0xdeadbeef\n",
name,ordinal);
thunk_list->u1.Function = (FARPROC32)0xdeadbeef;
}
} else {
pe_name=(PIMAGE_IMPORT_BY_NAME) RVA(thunk_list->u1.AddressOfData);
TRACE(win32,"--- %s %s.%d\n",
pe_name->Name,name,pe_name->Hint);
thunk_list->u1.Function=MODULE_GetProcAddress32(
process, hImpModule, pe_name->Name, TRUE
);
if (!thunk_list->u1.Function) {
ERR(win32, "No implementation for %s.%d, setting to 0xdeadbeef\n",
name, pe_name->Hint);
thunk_list->u1.Function = (FARPROC32)0xdeadbeef;
}
}
thunk_list++;
}
}
}
return 0;
}
static int calc_vma_size( HMODULE32 hModule )
{
int i,vma_size = 0;
IMAGE_SECTION_HEADER *pe_seg = PE_SECTIONS(hModule);
TRACE(win32, "Dump of segment table\n");
TRACE(win32, " Name VSz Vaddr SzRaw Fileadr *Reloc *Lineum #Reloc #Linum Char\n");
for (i = 0; i< PE_HEADER(hModule)->FileHeader.NumberOfSections; i++)
{
TRACE(win32, "%8s: %4.4lx %8.8lx %8.8lx %8.8lx %8.8lx %8.8lx %4.4x %4.4x %8.8lx\n",
pe_seg->Name,
pe_seg->Misc.VirtualSize,
pe_seg->VirtualAddress,
pe_seg->SizeOfRawData,
pe_seg->PointerToRawData,
pe_seg->PointerToRelocations,
pe_seg->PointerToLinenumbers,
pe_seg->NumberOfRelocations,
pe_seg->NumberOfLinenumbers,
pe_seg->Characteristics);
vma_size=MAX(vma_size, pe_seg->VirtualAddress+pe_seg->SizeOfRawData);
vma_size=MAX(vma_size, pe_seg->VirtualAddress+pe_seg->Misc.VirtualSize);
pe_seg++;
}
return vma_size;
}
static void do_relocations( unsigned int load_addr, IMAGE_BASE_RELOCATION *r )
{
int delta = load_addr - PE_HEADER(load_addr)->OptionalHeader.ImageBase;
int hdelta = (delta >> 16) & 0xFFFF;
int ldelta = delta & 0xFFFF;
if(delta == 0)
/* Nothing to do */
return;
while(r->VirtualAddress)
{
char *page = (char*) RVA(r->VirtualAddress);
int count = (r->SizeOfBlock - 8)/2;
int i;
TRACE(fixup, "%x relocations for page %lx\n",
count, r->VirtualAddress);
/* patching in reverse order */
for(i=0;i<count;i++)
{
int offset = r->TypeOffset[i] & 0xFFF;
int type = r->TypeOffset[i] >> 12;
TRACE(fixup,"patching %x type %x\n", offset, type);
switch(type)
{
case IMAGE_REL_BASED_ABSOLUTE: break;
case IMAGE_REL_BASED_HIGH:
*(short*)(page+offset) += hdelta;
break;
case IMAGE_REL_BASED_LOW:
*(short*)(page+offset) += ldelta;
break;
case IMAGE_REL_BASED_HIGHLOW:
#if 1
*(int*)(page+offset) += delta;
#else
{ int h=*(unsigned short*)(page+offset);
int l=r->TypeOffset[++i];
*(unsigned int*)(page + offset) = (h<<16) + l + delta;
}
#endif
break;
case IMAGE_REL_BASED_HIGHADJ:
FIXME(win32, "Don't know what to do with IMAGE_REL_BASED_HIGHADJ\n");
break;
case IMAGE_REL_BASED_MIPS_JMPADDR:
FIXME(win32, "Is this a MIPS machine ???\n");
break;
default:
FIXME(win32, "Unknown fixup type\n");
break;
}
}
r = (IMAGE_BASE_RELOCATION*)((char*)r + r->SizeOfBlock);
}
}
/**********************************************************************
* PE_LoadImage
* Load one PE format DLL/EXE into memory
*
* Unluckily we can't just mmap the sections where we want them, for
* (at least) Linux does only support offsets which are page-aligned.
*
* BUT we have to map the whole image anyway, for Win32 programs sometimes
* want to access them. (HMODULE32 point to the start of it)
*/
static HMODULE32 PE_LoadImage( LPCSTR name, OFSTRUCT *ofs )
{
HMODULE32 hModule;
HFILE32 hFile;
HANDLE32 mapping;
IMAGE_NT_HEADERS *nt;
IMAGE_SECTION_HEADER *pe_sec;
BY_HANDLE_FILE_INFORMATION bhfi;
int i, rawsize, lowest_va, lowest_fa, vma_size, file_size = 0;
DWORD load_addr, aoep, reloc = 0;
char dllname[256], *p;
/* Append .DLL to name if no extension present */
strcpy( dllname, name );
if ((p = strrchr( dllname, '\\' ))) p++; else p = dllname;
if (!strchr( p, '.' )) strcat( dllname, ".DLL" );
/* Open PE file */
hFile = OpenFile32( dllname, ofs, OF_READ | OF_SHARE_DENY_WRITE );
if ( hFile == HFILE_ERROR32 )
{
WARN( win32, "OpenFile error %ld\n", GetLastError() );
return 2;
}
/* Retrieve file size */
if ( GetFileInformationByHandle( hFile, &bhfi ) )
file_size = bhfi.nFileSizeLow; /* FIXME: 64 bit */
/* Map the PE file somewhere */
mapping = CreateFileMapping32A( hFile, NULL, PAGE_READONLY | SEC_COMMIT,
0, 0, NULL );
CloseHandle( hFile );
if (!mapping)
{
WARN( win32, "CreateFileMapping error %ld\n", GetLastError() );
return 0;
}
hModule = (HMODULE32)MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 );
CloseHandle( mapping );
if (!hModule)
{
WARN( win32, "MapViewOfFile error %ld\n", GetLastError() );
return 0;
}
nt = PE_HEADER( hModule );
/* Check signature */
if ( nt->Signature != IMAGE_NT_SIGNATURE )
{
WARN(win32, "image doesn't have PE signature, but 0x%08lx\n",
nt->Signature );
goto error;
}
/* Check architecture */
if ( nt->FileHeader.Machine != IMAGE_FILE_MACHINE_I386 )
{
MSG("Trying to load PE image for unsupported architecture (");
switch (nt->FileHeader.Machine)
{
case IMAGE_FILE_MACHINE_UNKNOWN: MSG("Unknown"); break;
case IMAGE_FILE_MACHINE_I860: MSG("I860"); break;
case IMAGE_FILE_MACHINE_R3000: MSG("R3000"); break;
case IMAGE_FILE_MACHINE_R4000: MSG("R4000"); break;
case IMAGE_FILE_MACHINE_R10000: MSG("R10000"); break;
case IMAGE_FILE_MACHINE_ALPHA: MSG("Alpha"); break;
case IMAGE_FILE_MACHINE_POWERPC: MSG("PowerPC"); break;
default: MSG("Unknown-%04x", nt->FileHeader.Machine); break;
}
MSG(")\n");
goto error;
}
/* Find out how large this executeable should be */
pe_sec = PE_SECTIONS( hModule );
rawsize = 0; lowest_va = 0x10000; lowest_fa = 0x10000;
for (i = 0; i < nt->FileHeader.NumberOfSections; i++)
{
if (lowest_va > pe_sec[i].VirtualAddress)
lowest_va = pe_sec[i].VirtualAddress;
if (pe_sec[i].Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA)
continue;
if (pe_sec[i].PointerToRawData < lowest_fa)
lowest_fa = pe_sec[i].PointerToRawData;
if (pe_sec[i].PointerToRawData+pe_sec[i].SizeOfRawData > rawsize)
rawsize = pe_sec[i].PointerToRawData+pe_sec[i].SizeOfRawData;
}
/* Check file size */
if ( file_size && file_size < rawsize )
{
ERR( win32, "PE module is too small (header: %d, filesize: %d), "
"probably truncated download?\n",
rawsize, file_size );
goto error;
}
/* Check entrypoint address */
aoep = nt->OptionalHeader.AddressOfEntryPoint;
if (aoep && (aoep < lowest_va))
FIXME( win32, "WARNING: '%s' has an invalid entrypoint (0x%08lx) "
"below the first virtual address (0x%08x) "
"(possible Virus Infection or broken binary)!\n",
ofs->szPathName, aoep, lowest_va );
/* Allocate memory for module */
load_addr = nt->OptionalHeader.ImageBase;
vma_size = calc_vma_size( hModule );
load_addr = (DWORD)VirtualAlloc( (void*)load_addr, vma_size,
MEM_RESERVE | MEM_COMMIT,
PAGE_EXECUTE_READWRITE );
if (load_addr == 0)
{
/* We need to perform base relocations */
IMAGE_DATA_DIRECTORY *dir;
dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_BASERELOC;
if (dir->Size)
reloc = dir->VirtualAddress;
else
{
FIXME( win32,
"Need to relocate %s, but no relocation records present (%s).\n",
ofs->szPathName,
(nt->FileHeader.Characteristics&IMAGE_FILE_RELOCS_STRIPPED)?
"stripped during link" : "unknown reason" );
goto error;
}
load_addr = (DWORD)VirtualAlloc( NULL, vma_size,
MEM_RESERVE | MEM_COMMIT,
PAGE_EXECUTE_READWRITE );
}
TRACE( win32, "Load addr is %lx (base %lx), range %x\n",
load_addr, nt->OptionalHeader.ImageBase, vma_size );
TRACE( segment, "Loading %s at %lx, range %x\n",
ofs->szPathName, load_addr, vma_size );
/* Store the NT header at the load addr */
*(PIMAGE_DOS_HEADER)load_addr = *(PIMAGE_DOS_HEADER)hModule;
*PE_HEADER( load_addr ) = *nt;
memcpy( PE_SECTIONS(load_addr), PE_SECTIONS(hModule),
sizeof(IMAGE_SECTION_HEADER) * nt->FileHeader.NumberOfSections );
#if 0
/* Copies all stuff up to the first section. Including win32 viruses. */
memcpy( load_addr, hModule, lowest_fa );
#endif
/* Copy sections into module image */
pe_sec = PE_SECTIONS( hModule );
for (i = 0; i < nt->FileHeader.NumberOfSections; i++, pe_sec++)
{
/* memcpy only non-BSS segments */
/* FIXME: this should be done by mmap(..MAP_PRIVATE|MAP_FIXED..)
* but it is not possible for (at least) Linux needs
* a page-aligned offset.
*/
if(!(pe_sec->Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA))
memcpy((char*)RVA(pe_sec->VirtualAddress),
(char*)(hModule + pe_sec->PointerToRawData),
pe_sec->SizeOfRawData);
#if 0
/* not needed, memory is zero */
if(strcmp(pe_sec->Name, ".bss") == 0)
memset((void *)RVA(pe_sec->VirtualAddress), 0,
pe_sec->Misc.VirtualSize ?
pe_sec->Misc.VirtualSize :
pe_sec->SizeOfRawData);
#endif
}
/* Perform base relocation, if necessary */
if ( reloc )
do_relocations( load_addr, (IMAGE_BASE_RELOCATION *)RVA(reloc) );
/* We don't need the orignal mapping any more */
UnmapViewOfFile( (LPVOID)hModule );
return (HMODULE32)load_addr;
error:
UnmapViewOfFile( (LPVOID)hModule );
return 0;
}
/**********************************************************************
* PE_CreateModule
*
* Create WINE_MODREF structure for loaded HMODULE32, link it into
* process modref_list, and fixup all imports.
*
* Note: hModule must point to a correctly allocated PE image,
* with base relocations applied; the 16-bit dummy module
* associated to hModule must already exist.
*/
static WINE_MODREF *PE_CreateModule( PDB32 *process, HMODULE32 hModule,
OFSTRUCT *ofs, DWORD flags, BOOL32 builtin )
{
DWORD load_addr = (DWORD)hModule; /* for RVA */
IMAGE_NT_HEADERS *nt = PE_HEADER(hModule);
IMAGE_DATA_DIRECTORY *dir;
IMAGE_IMPORT_DESCRIPTOR *pe_import = NULL;
IMAGE_EXPORT_DIRECTORY *pe_export = NULL;
IMAGE_RESOURCE_DIRECTORY *pe_resource = NULL;
WINE_MODREF *wm;
int result;
char *modname;
/* Retrieve DataDirectory entries */
dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXPORT;
if (dir->Size)
pe_export = (PIMAGE_EXPORT_DIRECTORY)RVA(dir->VirtualAddress);
dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_IMPORT;
if (dir->Size)
pe_import = (PIMAGE_IMPORT_DESCRIPTOR)RVA(dir->VirtualAddress);
dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_RESOURCE;
if (dir->Size)
pe_resource = (PIMAGE_RESOURCE_DIRECTORY)RVA(dir->VirtualAddress);
dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXCEPTION;
if (dir->Size) FIXME( win32, "Exception directory ignored\n" );
dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_SECURITY;
if (dir->Size) FIXME( win32, "Security directory ignored\n" );
/* IMAGE_DIRECTORY_ENTRY_BASERELOC handled in PE_LoadImage */
/* IMAGE_DIRECTORY_ENTRY_DEBUG handled by debugger */
dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_DEBUG;
if (dir->Size) TRACE( win32, "Debug directory ignored\n" );
dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_COPYRIGHT;
if (dir->Size) FIXME( win32, "Copyright string ignored\n" );
dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_GLOBALPTR;
if (dir->Size) FIXME( win32, "Global Pointer (MIPS) ignored\n" );
/* IMAGE_DIRECTORY_ENTRY_TLS handled in PE_TlsInit */
dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG;
if (dir->Size) FIXME (win32, "Load Configuration directory ignored\n" );
dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT;
if (dir->Size) TRACE( win32, "Bound Import directory ignored\n" );
dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_IAT;
if (dir->Size) TRACE( win32, "Import Address Table directory ignored\n" );
dir = nt->OptionalHeader.DataDirectory+13;
if (dir->Size) FIXME( win32, "Unknown directory 13 ignored\n" );
dir = nt->OptionalHeader.DataDirectory+14;
if (dir->Size) FIXME( win32, "Unknown directory 14 ignored\n" );
dir = nt->OptionalHeader.DataDirectory+15;
if (dir->Size) FIXME( win32, "Unknown directory 15 ignored\n" );
/* Allocate and fill WINE_MODREF */
wm = (WINE_MODREF *)HeapAlloc( process->heap, HEAP_ZERO_MEMORY, sizeof(*wm) );
wm->module = hModule;
wm->type = MODULE32_PE;
wm->binfmt.pe.flags = builtin? PE_MODREF_INTERNAL : 0;
wm->binfmt.pe.pe_export = pe_export;
wm->binfmt.pe.pe_import = pe_import;
wm->binfmt.pe.pe_resource = pe_resource;
if ( pe_export )
modname = (char *)RVA( pe_export->Name );
else
{
/* try to find out the name from the OFSTRUCT */
char *s;
modname = ofs->szPathName;
while ((s=strchr(modname,'\\')))
modname = s+1;
}
wm->modname = HEAP_strdupA( process->heap, 0, modname );
result = GetLongPathName32A( ofs->szPathName, NULL, 0 );
wm->longname = (char *)HeapAlloc( process->heap, 0, result+1 );
GetLongPathName32A( ofs->szPathName, wm->longname, result+1 );
wm->shortname = HEAP_strdupA( process->heap, 0, ofs->szPathName );
/* Link MODREF into process list */
wm->next = process->modref_list;
process->modref_list = wm;
if ( !(nt->FileHeader.Characteristics & IMAGE_FILE_DLL) )
{
if ( process->exe_modref )
FIXME( win32, "overwriting old exe_modref... arrgh\n" );
process->exe_modref = wm;
}
/* Dump Exports */
if ( pe_export )
dump_exports( hModule );
/* Fixup Imports */
if ( pe_import && fixup_imports( process, wm ) )
{
/* remove entry from modref chain */
WINE_MODREF **xwm;
for ( xwm = &process->modref_list; *xwm; xwm = &(*xwm)->next )
if ( *xwm == wm )
{
*xwm = wm->next;
break;
}
/* FIXME: there are several more dangling references
* left. Including dlls loaded by this dll before the
* failed one. Unrolling is rather difficult with the
* current structure and we can leave it them lying
* around with no problems, so we don't care.
* As these might reference our wm, we don't free it.
*/
return NULL;
}
return wm;
}
/******************************************************************************
* The PE Library Loader frontend.
* FIXME: handle the flags.
*/
HMODULE32 PE_LoadLibraryEx32A (LPCSTR name, PDB32 *process,
HFILE32 hFile, DWORD flags)
{
OFSTRUCT ofs;
HMODULE32 hModule32;
HMODULE16 hModule16;
NE_MODULE *pModule;
WINE_MODREF *wm;
BOOL32 builtin;
/* Check for already loaded module */
if ((hModule32 = MODULE_FindModule32( process, name )))
return hModule32;
/* try to load builtin, enabled modules first */
if ((hModule32 = BUILTIN32_LoadImage( name, &ofs, FALSE )))
builtin = TRUE;
/* try to load the specified dll/exe */
else if ((hModule32 = PE_LoadImage( name, &ofs )) >= 32)
builtin = FALSE;
/* Now try the built-in even if disabled */
else if ((hModule32 = BUILTIN32_LoadImage( name, &ofs, TRUE )))
{
WARN( module, "Could not load external DLL '%s', using built-in module.\n", name );
builtin = TRUE;
}
else
return 0;
/* Create 16-bit dummy module */
if ((hModule16 = MODULE_CreateDummyModule( &ofs )) < 32) return hModule16;
pModule = (NE_MODULE *)GlobalLock16( hModule16 );
pModule->flags = NE_FFLAGS_LIBMODULE | NE_FFLAGS_SINGLEDATA |
NE_FFLAGS_WIN32 | (builtin? NE_FFLAGS_BUILTIN : 0);
pModule->module32 = hModule32;
/* Create 32-bit MODREF */
if ( !(wm = PE_CreateModule( process, hModule32, &ofs, flags, builtin )) )
{
ERR(win32,"can't load %s\n",ofs.szPathName);
FreeLibrary16( hModule16 );
return 0;
}
if (wm->binfmt.pe.pe_export)
SNOOP_RegisterDLL(wm->module,wm->modname,wm->binfmt.pe.pe_export->NumberOfFunctions);
return wm->module;
}
/*****************************************************************************
* Load the PE main .EXE. All other loading is done by PE_LoadLibraryEx32A
* FIXME: this function should use PE_LoadLibraryEx32A, but currently can't
* due to the PROCESS_Create stuff.
*/
HINSTANCE16 PE_CreateProcess( LPCSTR name, LPCSTR cmd_line,
LPCSTR env, BOOL32 inherit, LPSTARTUPINFO32A startup,
LPPROCESS_INFORMATION info )
{
HMODULE16 hModule16;
HMODULE32 hModule32;
HINSTANCE16 hInstance;
NE_MODULE *pModule;
OFSTRUCT ofs;
PDB32 *process;
TDB *pTask;
WINE_MODREF *wm;
/* Load file */
if ((hModule32 = PE_LoadImage( name, &ofs )) < 32)
return hModule32;
if (PE_HEADER(hModule32)->FileHeader.Characteristics & IMAGE_FILE_DLL)
return 20; /* FIXME: not the right error code */
/* Create 16-bit dummy module */
if ((hModule16 = MODULE_CreateDummyModule( &ofs )) < 32) return hModule16;
pModule = (NE_MODULE *)GlobalLock16( hModule16 );
pModule->flags = NE_FFLAGS_WIN32;
pModule->module32 = hModule32;
/* Create new process */
hInstance = NE_CreateInstance( pModule, NULL, FALSE );
process = PROCESS_Create( pModule, cmd_line, env,
hInstance, 0, inherit, startup, info );
/* Create 32-bit MODREF */
if ( !(wm = PE_CreateModule( process, hModule32, &ofs, 0, FALSE )) )
{
/* FIXME: should destroy the task created and free referenced stuff */
return 0;
}
/* FIXME: Yuck. Is there no other good place to do that? */
pTask = (TDB *)GlobalLock16( process->task );
PE_InitTls( pTask->thdb );
return hInstance;
}
/*********************************************************************
* PE_UnloadImage [internal]
*/
int PE_UnloadImage( HMODULE32 hModule )
{
FIXME(win32,"stub.\n");
/* free resources, image, unmap */
return 1;
}
/* Called if the library is loaded or freed.
* NOTE: if a thread attaches a DLL, the current thread will only do
* DLL_PROCESS_ATTACH. Only new created threads do DLL_THREAD_ATTACH
* (SDK)
*/
void PE_InitDLL(WINE_MODREF *wm, DWORD type, LPVOID lpReserved)
{
if (wm->type!=MODULE32_PE)
return;
if (wm->binfmt.pe.flags & PE_MODREF_NO_DLL_CALLS)
return;
if (type==DLL_PROCESS_ATTACH)
{
if (wm->binfmt.pe.flags & PE_MODREF_PROCESS_ATTACHED)
return;
wm->binfmt.pe.flags |= PE_MODREF_PROCESS_ATTACHED;
}
/* DLL_ATTACH_PROCESS:
* lpreserved is NULL for dynamic loads, not-NULL for static loads
* DLL_DETACH_PROCESS:
* lpreserved is NULL if called by FreeLibrary, not-NULL otherwise
* the SDK doesn't mention anything for DLL_THREAD_*
*/
/* Is this a library? And has it got an entrypoint? */
if ((PE_HEADER(wm->module)->FileHeader.Characteristics & IMAGE_FILE_DLL) &&
(PE_HEADER(wm->module)->OptionalHeader.AddressOfEntryPoint)
) {
DLLENTRYPROC32 entry = (void*)RVA_PTR( wm->module,OptionalHeader.AddressOfEntryPoint );
TRACE(relay, "CallTo32(entryproc=%p,module=%08x,type=%ld,res=%p)\n",
entry, wm->module, type, lpReserved );
entry( wm->module, type, lpReserved );
}
}
/************************************************************************
* PE_InitTls (internal)
*
* If included, initialises the thread local storages of modules.
* Pointers in those structs are not RVAs but real pointers which have been
* relocated by do_relocations() already.
*/
void PE_InitTls(THDB *thdb)
{
WINE_MODREF *wm;
PE_MODREF *pem;
IMAGE_NT_HEADERS *peh;
DWORD size,datasize;
LPVOID mem;
PIMAGE_TLS_DIRECTORY pdir;
PDB32 *pdb = thdb->process;
int delta;
for (wm = pdb->modref_list;wm;wm=wm->next) {
if (wm->type!=MODULE32_PE)
continue;
pem = &(wm->binfmt.pe);
peh = PE_HEADER(wm->module);
delta = wm->module - peh->OptionalHeader.ImageBase;
if (!peh->OptionalHeader.DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress)
continue;
FIXME(win32,"%s has TLS directory.\n",wm->longname);
pdir = (LPVOID)(wm->module + peh->OptionalHeader.
DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress);
if (!(pem->flags & PE_MODREF_TLS_ALLOCED)) {
pem->tlsindex = THREAD_TlsAlloc(thdb);
*pdir->AddressOfIndex=pem->tlsindex;
}
pem->flags |= PE_MODREF_TLS_ALLOCED;
datasize= pdir->EndAddressOfRawData-pdir->StartAddressOfRawData;
size = datasize + pdir->SizeOfZeroFill;
mem=VirtualAlloc(0,size,MEM_RESERVE|MEM_COMMIT,PAGE_READWRITE);
memcpy(mem,(LPVOID)pdir->StartAddressOfRawData,datasize);
if (pdir->AddressOfCallBacks) {
PIMAGE_TLS_CALLBACK *cbs =
(PIMAGE_TLS_CALLBACK *)pdir->AddressOfCallBacks;
if (*cbs)
FIXME(win32, "TLS Callbacks aren't going to be called\n");
}
/* Don't use TlsSetValue, we are in the wrong thread */
thdb->tls_array[pem->tlsindex] = mem;
}
}
/****************************************************************************
* DisableThreadLibraryCalls (KERNEL32.74)
* Don't call DllEntryPoint for DLL_THREAD_{ATTACH,DETACH} if set.
*/
BOOL32 WINAPI DisableThreadLibraryCalls(HMODULE32 hModule)
{
WINE_MODREF *wm;
for (wm=PROCESS_Current()->modref_list;wm;wm=wm->next)
if ((wm->module == hModule) && (wm->type==MODULE32_PE))
wm->binfmt.pe.flags|=PE_MODREF_NO_DLL_CALLS;
return TRUE;
}
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