source: trunk/src/kernel32/winimagepeldr.cpp@ 4313

Last change on this file since 4313 was 4015, checked in by sandervl, 25 years ago

TLS fix in PE loader
File size: 57.0 KB
Line 
1/* $Id: winimagepeldr.cpp,v 1.53 2000-08-14 19:15:37 sandervl Exp $ */
2
3/*
4 * Win32 PE loader Image base class
5 *
6 * Copyright 1998-2000 Sander van Leeuwen (sandervl@xs4all.nl)
7 * Copyright 1998 Knut St. Osmundsen
8 *
9 * Project Odin Software License can be found in LICENSE.TXT
10 *
11 * TODO: Check psh[i].Characteristics for more than only the code section
12 * TODO: Make resource section readonly when GDI32 is fixed
13 *
14 * NOTE: RSRC_LOAD is a special flag to only load the resource directory
15 * of a PE image. Processing imports, sections etc is not done.
16 * Nor is it put into the linked list of dlls (if it's a dll).
17 * This is useful for GetVersionSize/Resource in case it wants to
18 * get version info of an image that is not loaded.
19 * So an instance of this type can't be used for anything but resource lookup!
20 *
21 *
22 */
23#define INCL_DOSFILEMGR /* File Manager values */
24#define INCL_DOSMODULEMGR
25#define INCL_DOSERRORS /* DOS Error values */
26#define INCL_DOSPROCESS /* DOS Process values */
27#define INCL_DOSMISC /* DOS Miscellanous values */
28#define INCL_WIN
29#define INCL_BASE
30#include <os2wrap.h> //Odin32 OS/2 api wrappers
31
32#include <stdio.h>
33#include <string.h>
34#include <stdlib.h>
35
36#include <assert.h>
37//use a different logfile
38#define PRIVATE_LOGGING
39#include <misc.h>
40#include <win32api.h>
41#include "winimagebase.h"
42#include "winimagepeldr.h"
43#include "windllpeldr.h"
44#include "windlllx.h"
45#include <pefile.h>
46#include <unicode.h>
47#include "oslibmisc.h"
48#include "initterm.h"
49#include <win\virtual.h>
50#include "oslibdos.h"
51#include "mmap.h"
52#include <wprocess.h>
53
54//Define COMMIT_ALL to let the pe loader commit all sections of the image
55//This is very useful during debugging as you'll get lots of exceptions
56//otherwise.
57#define COMMIT_ALL
58
59char szErrorTitle[] = "Odin";
60char szMemErrorMsg[] = "Memory allocation failure";
61char szFileErrorMsg[] = "File IO error";
62char szPEErrorMsg[] = "Not a valid win32 exe. (perhaps 16 bits windows)";
63char szCPUErrorMsg[] = "Executable doesn't run on x86 machines";
64char szExeErrorMsg[] = "File isn't an executable";
65char szInteralErrorMsg[]= "Internal Error";
66char szErrorModule[128] = "";
67
68#ifdef DEBUG
69static FILE *_privateLogFile = NULL;
70#endif
71
72ULONG MissingApi();
73
74//******************************************************************************
75//******************************************************************************
76void OpenPrivateLogFilePE()
77{
78#ifdef DEBUG
79 char logname[CCHMAXPATH];
80
81 sprintf(logname, "pe_%d.log", loadNr);
82 _privateLogFile = fopen(logname, "w");
83 if(_privateLogFile == NULL) {
84 sprintf(logname, "%spe_%d.log", kernel32Path, loadNr);
85 _privateLogFile = fopen(logname, "w");
86 }
87 dprintfGlobal(("PE LOGFILE : %s", logname));
88#endif
89}
90//******************************************************************************
91//******************************************************************************
92void ClosePrivateLogFilePE()
93{
94#ifdef DEBUG
95 if(_privateLogFile) {
96 fclose(_privateLogFile);
97 _privateLogFile = NULL;
98 }
99#endif
100}
101//******************************************************************************
102//******************************************************************************
103Win32PeLdrImage::Win32PeLdrImage(char *pszFileName, BOOL isExe, int loadtype) :
104 Win32ImageBase(-1),
105 nrsections(0), imageSize(0),
106 imageVirtBase(-1), realBaseAddress(0), imageVirtEnd(0),
107 nrNameExports(0), nrOrdExports(0), nameexports(NULL), ordexports(NULL),
108 memmap(NULL), pFixups(NULL), dwFixupSize(0)
109{
110 HFILE dllfile;
111
112 loadType = loadtype;
113
114 strcpy(szFileName, pszFileName);
115 strupr(szFileName);
116 if(isExe) {
117 if(!strchr(szFileName, '.')) {
118 strcat(szFileName,".EXE");
119 }
120 dllfile = OSLibDosOpen(szFileName, OSLIB_ACCESS_READONLY|OSLIB_ACCESS_SHAREDENYNONE);
121 if(dllfile == NULL) {
122 if(!strstr(szFileName, ".EXE")) {
123 strcat(szFileName,".EXE");
124 }
125 dllfile = OSLibDosOpen(szFileName, OSLIB_ACCESS_READONLY|OSLIB_ACCESS_SHAREDENYNONE);
126 if(dllfile == NULL) {
127 OSLibDosSearchPath(OSLIB_SEARCHENV, "PATH", szFileName, szFileName, sizeof(szFileName));
128 }
129 }
130 else OSLibDosClose(dllfile);
131 }
132 else {
133 findDll(szFileName, szModule, sizeof(szModule));
134 strcpy(szFileName, szModule);
135 }
136 strcpy(szModule, OSLibStripPath(szFileName));
137 strupr(szModule);
138 char *dot = strstr(szModule, ".");
139 while(dot) {
140 char *newdot = strstr(dot+1, ".");
141 if(newdot == NULL) break;
142 dot = newdot;
143 }
144 if(dot)
145 *dot = 0;
146}
147//******************************************************************************
148//******************************************************************************
149Win32PeLdrImage::~Win32PeLdrImage()
150{
151 if(memmap)
152 delete memmap;
153
154 if(hFile) {
155 OSLibDosClose(hFile);
156 hFile = 0;
157 }
158
159 if(realBaseAddress)
160 DosFreeMem((PVOID)realBaseAddress);
161
162 if(nameexports)
163 free(nameexports);
164
165 if(ordexports)
166 free(ordexports);
167}
168//******************************************************************************
169//******************************************************************************
170BOOL Win32PeLdrImage::init(ULONG reservedMem)
171{
172 LPVOID win32file = NULL;
173 ULONG filesize, ulRead, ulNewPos;
174 PIMAGE_SECTION_HEADER psh;
175 IMAGE_SECTION_HEADER sh;
176 IMAGE_TLS_DIRECTORY *tlsDir = NULL;
177 int nSections, i;
178 char szFullPath[CCHMAXPATH] = "";
179 IMAGE_DOS_HEADER doshdr;
180 ULONG signature;
181
182 hFile = OSLibDosOpen(szFileName, OSLIB_ACCESS_READONLY|OSLIB_ACCESS_SHAREDENYNONE);
183
184 //default error:
185 strcpy(szErrorModule, OSLibStripPath(szFileName));
186 if(hFile == NULL) {
187 goto failure;
188 }
189 //read dos header
190 if(DosRead(hFile, (LPVOID)&doshdr, sizeof(doshdr), &ulRead)) {
191 goto failure;
192 }
193 if(OSLibDosSetFilePtr(hFile, doshdr.e_lfanew, OSLIB_SETPTR_FILE_BEGIN) == -1) {
194 goto failure;
195 }
196 //read signature dword
197 if(DosRead(hFile, (LPVOID)&signature, sizeof(signature), &ulRead)) {
198 goto failure;
199 }
200 //read pe header
201 if(DosRead(hFile, (LPVOID)&fh, sizeof(fh), &ulRead)) {
202 goto failure;
203 }
204 //read optional header
205 if(DosRead(hFile, (LPVOID)&oh, sizeof(oh), &ulRead)) {
206 goto failure;
207 }
208 if(doshdr.e_magic != IMAGE_DOS_SIGNATURE || signature != IMAGE_NT_SIGNATURE) {
209 dprintf((LOG, "Not a valid PE file (probably a 16 bits windows exe/dll)!"));
210 WinMessageBox(HWND_DESKTOP, HWND_DESKTOP, szPEErrorMsg, szErrorTitle, 0, MB_OK | MB_ERROR | MB_MOVEABLE);
211 goto failure;
212 }
213
214 if(oh.SizeOfImage == 0) {//just in case
215 oh.SizeOfImage = OSLibDosGetFileSize(hFile, NULL);
216 }
217
218 imageSize = oh.SizeOfImage;
219 //Allocate memory to hold the entire image
220 if(allocSections(reservedMem) == FALSE) {
221 dprintf((LOG, "Failed to allocate image memory for %s at %x, rc %d", szFileName, oh.ImageBase, errorState));;
222 goto failure;
223 }
224
225 memmap = new Win32MemMap(this, realBaseAddress, imageSize);
226 if(memmap == NULL || !memmap->Init(0)) {
227 goto failure;
228 }
229 win32file = memmap->mapViewOfFile(0, 0, 2);
230
231 if(DosQueryPathInfo(szFileName, FIL_QUERYFULLNAME, szFullPath, sizeof(szFullPath)) == 0) {
232 setFullPath(szFullPath);
233 }
234
235 if(!(fh.Characteristics & IMAGE_FILE_EXECUTABLE_IMAGE)) {//not valid
236 dprintf((LOG, "Not a valid PE file!"));
237 WinMessageBox(HWND_DESKTOP, HWND_DESKTOP, szPEErrorMsg, szErrorTitle, 0, MB_OK | MB_ERROR | MB_MOVEABLE);
238 goto failure;
239 }
240 if(fh.Machine != IMAGE_FILE_MACHINE_I386) {
241 dprintf((LOG, "Doesn't run on x86 processors!"));
242 WinMessageBox(HWND_DESKTOP, HWND_DESKTOP, szCPUErrorMsg, szErrorTitle, 0, MB_OK | MB_ERROR | MB_MOVEABLE);
243 goto failure;
244 }
245 //IMAGE_FILE_SYSTEM == only drivers (device/file system/video etc)?
246 if(fh.Characteristics & IMAGE_FILE_SYSTEM) {
247 dprintf((LOG, "Can't convert system files"));
248 WinMessageBox(HWND_DESKTOP, HWND_DESKTOP, szExeErrorMsg, szErrorTitle, 0, MB_OK | MB_ERROR | MB_MOVEABLE);
249 goto failure;
250 }
251
252 if(fh.Characteristics & IMAGE_FILE_RELOCS_STRIPPED) {
253 dprintf((LOG, "No fixups, might not run!"));
254 }
255
256 dprintf((LOG, "PE file : %s", szFileName));
257 dprintf((LOG, "PE Optional header: "));
258 dprintf((LOG, "Preferred address : %d", oh.ImageBase ));
259 dprintf((LOG, "Base Of Code : %d", oh.BaseOfCode ));
260 dprintf((LOG, "CodeSize : %d", oh.SizeOfCode ));
261 dprintf((LOG, "Base Of Data : %d", oh.BaseOfData ));
262 dprintf((LOG, "Data Size (uninit): %d", oh.SizeOfUninitializedData ));
263 dprintf((LOG, "Data Size (init) : %d", oh.SizeOfInitializedData ));
264 dprintf((LOG, "Entry Point : %d", oh.AddressOfEntryPoint ));
265 dprintf((LOG, "Section Alignment : %d", oh.SectionAlignment ));
266 dprintf((LOG, "Stack Reserve size: %d", oh.SizeOfStackReserve ));
267 dprintf((LOG, "Stack Commit size : %d", oh.SizeOfStackCommit ));
268 dprintf((LOG, "SizeOfHeapReserve : %d", oh.SizeOfHeapReserve ));
269 dprintf((LOG, "SizeOfHeapCommit : %d", oh.SizeOfHeapCommit ));
270 dprintf((LOG, "FileAlignment : %d", oh.FileAlignment ));
271 dprintf((LOG, "Subsystem : %d", oh.Subsystem ));
272 dprintf((LOG, "Image Size : %d", oh.SizeOfImage ));
273 dprintf((LOG, "Header Size : %d", oh.SizeOfHeaders ));
274 dprintf((LOG, "MajorImageVersion : %d", oh.MajorImageVersion ));
275 dprintf((LOG, "MinorImageVersion : %d", oh.MinorImageVersion ));
276
277 //get header page
278 commitPage(realBaseAddress, FALSE);
279
280 nSections = NR_SECTIONS(win32file);
281
282 if(loadType == REAL_LOAD)
283 {
284 imageSize = 0;
285 if ((psh = (PIMAGE_SECTION_HEADER)SECTIONHDROFF (win32file)) != NULL) {
286 dprintf((LOG, "*************************PE SECTIONS START**************************" ));
287 for (i=0; i<nSections; i++) {
288 dprintf((LOG, "Raw data size: %x", psh[i].SizeOfRawData ));
289 dprintf((LOG, "Virtual Address: %x", psh[i].VirtualAddress ));
290 dprintf((LOG, "Virtual Address Start:%x", psh[i].VirtualAddress+oh.ImageBase ));
291 dprintf((LOG, "Virtual Address End: %x", psh[i].VirtualAddress+oh.ImageBase+psh[i].Misc.VirtualSize ));
292 dprintf((LOG, "Virtual Size: %x", psh[i].Misc.VirtualSize ));
293 dprintf((LOG, "Pointer to raw data: %x", psh[i].PointerToRawData ));
294 dprintf((LOG, "Section flags: %x\n\n", psh[i].Characteristics ));
295 if(strcmp(psh[i].Name, ".reloc") == 0) {
296 dprintf((LOG, ".reloc" ));
297 addSection(SECTION_RELOC, psh[i].PointerToRawData,
298 psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
299 psh[i].Misc.VirtualSize, psh[i].Characteristics);
300 continue;
301 }
302 if(strcmp(psh[i].Name, ".edata") == 0) {
303 dprintf((LOG, ".edata" ));
304 addSection(SECTION_EXPORT, psh[i].PointerToRawData,
305 psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
306 psh[i].Misc.VirtualSize, psh[i].Characteristics);
307 continue;
308 }
309 if(strcmp(psh[i].Name, ".rsrc") == 0) {
310 dprintf((LOG, ".rsrc" ));
311 addSection(SECTION_RESOURCE, psh[i].PointerToRawData,
312 psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
313 psh[i].Misc.VirtualSize, psh[i].Characteristics);
314 continue;
315 }
316 if(strcmp(psh[i].Name, ".tls") == 0)
317 {
318 tlsDir = (IMAGE_TLS_DIRECTORY *)ImageDirectoryOffset(win32file, IMAGE_DIRECTORY_ENTRY_TLS);
319 if(tlsDir) {
320 addSection(SECTION_TLS, psh[i].PointerToRawData,
321 psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
322 psh[i].Misc.VirtualSize, psh[i].Characteristics);
323 }
324 continue;
325 }
326
327 if(strcmp(psh[i].Name, ".debug") == 0) {
328 dprintf((LOG, ".rdebug" ));
329 addSection(SECTION_DEBUG, psh[i].PointerToRawData,
330 psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
331 psh[i].Misc.VirtualSize, psh[i].Characteristics);
332 continue;
333 }
334 if(IsImportSection(win32file, &psh[i]))
335 {
336 int type = SECTION_IMPORT;
337 dprintf((LOG, "Import Data Section" ));
338 if(psh[i].Characteristics & IMAGE_SCN_CNT_CODE) {
339 dprintf((LOG, "Also Code Section"));
340 type |= SECTION_CODE;
341 }
342 addSection(type, psh[i].PointerToRawData,
343 psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
344 psh[i].Misc.VirtualSize, psh[i].Characteristics);
345 continue;
346 }
347
348 //KSO Sun 1998-08-09: Borland does not alway set the CODE flag for its "CODE" section
349 if( psh[i].Characteristics & IMAGE_SCN_CNT_CODE ||
350 (psh[i].Characteristics & IMAGE_SCN_MEM_EXECUTE &&
351 !(psh[i].Characteristics & (IMAGE_SCN_CNT_UNINITIALIZED_DATA | IMAGE_SCN_CNT_INITIALIZED_DATA))) //KSO: make sure its not marked as a datasection
352 )
353 {
354 dprintf((LOG, "Code Section"));
355 addSection(SECTION_CODE, psh[i].PointerToRawData,
356 psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
357 psh[i].Misc.VirtualSize, psh[i].Characteristics);
358 continue;
359 }
360 if(!(psh[i].Characteristics & IMAGE_SCN_MEM_WRITE)) { //read only data section
361 dprintf((LOG, "Read Only Data Section" ));
362 addSection(SECTION_READONLYDATA, psh[i].PointerToRawData,
363 psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
364 psh[i].Misc.VirtualSize, psh[i].Characteristics);
365 continue;
366 }
367 if(psh[i].Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA) {
368 dprintf((LOG, "Uninitialized Data Section" ));
369 addSection(SECTION_UNINITDATA, psh[i].PointerToRawData,
370 psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
371 psh[i].Misc.VirtualSize, psh[i].Characteristics);
372 continue;
373 }
374 if(psh[i].Characteristics & IMAGE_SCN_CNT_INITIALIZED_DATA) {
375 dprintf((LOG, "Initialized Data Section" ));
376 addSection(SECTION_INITDATA, psh[i].PointerToRawData,
377 psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
378 psh[i].Misc.VirtualSize, psh[i].Characteristics);
379 continue;
380 }
381 if(psh[i].Characteristics & (IMAGE_SCN_MEM_WRITE | IMAGE_SCN_MEM_READ)) {
382 dprintf((LOG, "Other Section, stored as read/write uninit data" ));
383 addSection(SECTION_UNINITDATA, psh[i].PointerToRawData,
384 psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
385 psh[i].Misc.VirtualSize, psh[i].Characteristics);
386 continue;
387 }
388 dprintf((LOG, "Unknown section" ));
389 goto failure;
390 }
391 }
392 }
393 else {
394 if(GetSectionHdrByName (win32file, &sh, ".rsrc"))
395 {
396 addSection(SECTION_RESOURCE, sh.PointerToRawData,
397 sh.SizeOfRawData, sh.VirtualAddress + oh.ImageBase,
398 sh.Misc.VirtualSize, sh.Characteristics);
399 }
400 }
401 dprintf((LOG, "*************************PE SECTIONS END **************************" ));
402
403 imageSize += imageVirtBase - oh.ImageBase;
404 dprintf((LOG, "Total size of Image %x", imageSize ));
405 dprintf((LOG, "imageVirtBase %x", imageVirtBase ));
406 dprintf((LOG, "imageVirtEnd %x", imageVirtEnd ));
407
408 //In case there are any gaps between sections, adjust size
409 if(imageSize != imageVirtEnd - oh.ImageBase) {
410 dprintf((LOG, "imageSize != imageVirtEnd - oh.ImageBase!" ));
411 imageSize = imageVirtEnd - oh.ImageBase;
412 }
413 if(imageSize < oh.SizeOfImage) {
414 imageSize = oh.SizeOfImage;
415 }
416
417 dprintf((LOG, "OS/2 base address %x", realBaseAddress ));
418 if(oh.AddressOfEntryPoint) {
419 entryPoint = realBaseAddress + oh.AddressOfEntryPoint;
420 }
421 else {
422 dprintf((LOG, "EntryPoint == NULL" ));
423 entryPoint = NULL;
424 }
425
426 //set memory protection flags
427 if(setMemFlags() == FALSE) {
428 dprintf((LOG, "Failed to set memory protection" ));
429 goto failure;
430 }
431
432 if(loadType == REAL_LOAD)
433 {
434 if(tlsDir = (IMAGE_TLS_DIRECTORY *)ImageDirectoryOffset(win32file, IMAGE_DIRECTORY_ENTRY_TLS))
435 {
436 Section *sect = findSectionByAddr(tlsDir->StartAddressOfRawData);
437
438 dprintf((LOG, "TLS Directory" ));
439 dprintf((LOG, "TLS Address of Index %x", tlsDir->AddressOfIndex ));
440 dprintf((LOG, "TLS Address of Callbacks %x", tlsDir->AddressOfCallBacks ));
441 dprintf((LOG, "TLS SizeOfZeroFill %x", tlsDir->SizeOfZeroFill ));
442 dprintf((LOG, "TLS Characteristics %x", tlsDir->Characteristics ));
443 if(sect == NULL) {
444 dprintf((LOG, "Couldn't find TLS section!!" ));
445 goto failure;
446 }
447 setTLSAddress((char *)sect->realvirtaddr);
448 setTLSInitSize(tlsDir->EndAddressOfRawData - tlsDir->StartAddressOfRawData);
449 setTLSTotalSize(tlsDir->EndAddressOfRawData - tlsDir->StartAddressOfRawData + tlsDir->SizeOfZeroFill);
450
451 sect = findSectionByAddr((ULONG)tlsDir->AddressOfIndex);
452 if(sect == NULL) {
453 dprintf((LOG, "Couldn't find TLS AddressOfIndex section!!" ));
454 goto failure;
455 }
456 setTLSIndexAddr((LPDWORD)(sect->realvirtaddr + ((ULONG)tlsDir->AddressOfIndex - sect->virtaddr)));
457
458 if((ULONG)tlsDir->AddressOfCallBacks != 0) {
459 sect = findSectionByAddr((ULONG)tlsDir->AddressOfCallBacks);
460 if(sect == NULL) {
461 dprintf((LOG, "Couldn't find TLS AddressOfCallBacks section!!" ));
462 goto failure;
463 }
464 setTLSCallBackAddr((PIMAGE_TLS_CALLBACK *)(sect->realvirtaddr + ((ULONG)tlsDir->AddressOfCallBacks - sect->virtaddr)));
465 }
466 }
467
468#ifdef DEBUG
469 dprintf((LOG, "Image directories: "));
470 for (i = 0; i < IMAGE_NUMBEROF_DIRECTORY_ENTRIES; i++)
471 {
472 char *pszName;
473
474 switch (i)
475 {
476 case IMAGE_DIRECTORY_ENTRY_EXPORT: pszName = "Export Directory (IMAGE_DIRECTORY_ENTRY_EXPORT)"; break;
477 case IMAGE_DIRECTORY_ENTRY_IMPORT: pszName = "Import Directory (IMAGE_DIRECTORY_ENTRY_IMPORT)"; break;
478 case IMAGE_DIRECTORY_ENTRY_RESOURCE: pszName = "Resource Directory (IMAGE_DIRECTORY_ENTRY_RESOURCE)"; break;
479 case IMAGE_DIRECTORY_ENTRY_EXCEPTION: pszName = "Exception Directory (IMAGE_DIRECTORY_ENTRY_EXCEPTION)"; break;
480 case IMAGE_DIRECTORY_ENTRY_SECURITY: pszName = "Security Directory (IMAGE_DIRECTORY_ENTRY_SECURITY)"; break;
481 case IMAGE_DIRECTORY_ENTRY_BASERELOC: pszName = "Base Relocation Table (IMAGE_DIRECTORY_ENTRY_BASERELOC)"; break;
482 case IMAGE_DIRECTORY_ENTRY_DEBUG: pszName = "Debug Directory (IMAGE_DIRECTORY_ENTRY_DEBUG)"; break;
483 case IMAGE_DIRECTORY_ENTRY_COPYRIGHT: pszName = "Description String (IMAGE_DIRECTORY_ENTRY_COPYRIGHT)"; break;
484 case IMAGE_DIRECTORY_ENTRY_GLOBALPTR: pszName = "Machine Value (MIPS GP) (IMAGE_DIRECTORY_ENTRY_GLOBALPTR)"; break;
485 case IMAGE_DIRECTORY_ENTRY_TLS: pszName = "TLS Directory (IMAGE_DIRECTORY_ENTRY_TLS)"; break;
486 case IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG: pszName = "Load Configuration Directory (IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG)"; break;
487 case IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT:pszName = "Bound Import Directory in headers (IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT)"; break;
488 case IMAGE_DIRECTORY_ENTRY_IAT: pszName = "Import Address Table (IMAGE_DIRECTORY_ENTRY_IAT)"; break;
489 default:
490 pszName = "unknown";
491 }
492 dprintf((LOG, "directory %s", pszName));
493 dprintf((LOG, " Address 0x%08x", oh.DataDirectory[i].VirtualAddress));
494 dprintf((LOG, " Size 0x%08x", oh.DataDirectory[i].Size));
495 }
496 dprintf((LOG, "\n\n"));
497#endif
498
499 if(realBaseAddress != oh.ImageBase) {
500 pFixups = (PIMAGE_BASE_RELOCATION)ImageDirectoryOffset(win32file, IMAGE_DIRECTORY_ENTRY_BASERELOC);
501 dwFixupSize = ImageDirectorySize(win32file, IMAGE_DIRECTORY_ENTRY_BASERELOC);
502 commitPage((ULONG)pFixups, FALSE);
503 }
504#ifdef COMMIT_ALL
505 for (i=0; i<nSections; i++) {
506 commitPage((ULONG)section[i].realvirtaddr, FALSE, COMPLETE_SECTION);
507 }
508#else
509 for (i=0; i<nSections; i++) {
510 switch(section[i].type)
511 {
512 case SECTION_IMPORT:
513 case SECTION_RELOC:
514 case SECTION_EXPORT:
515 commitPage((ULONG)section[i].realvirtaddr, FALSE, COMPLETE_SECTION);
516 break;
517 }
518 }
519#endif
520 if(processExports((char *)win32file) == FALSE) {
521 dprintf((LOG, "Failed to process exported apis" ));
522 goto failure;
523 }
524 }
525#ifdef COMMIT_ALL
526 else {
527 commitPage((ULONG)section[0].realvirtaddr, FALSE, COMPLETE_SECTION);
528 }
529#endif
530
531 //SvL: Use pointer to image header as module handle now. Some apps needs this
532 hinstance = (HINSTANCE)realBaseAddress;
533
534 //SvL: Set instance handle in process database structure
535 SetPDBInstance(hinstance);
536
537 //PH: get pResRootDir pointer correct first, since processImports may
538 // implicitly call functions depending on it.
539 if(GetSectionHdrByName (win32file, &sh, ".rsrc")) {
540 //get offset in resource object of directory entry
541 pResRootDir = (PIMAGE_RESOURCE_DIRECTORY)(sh.VirtualAddress + realBaseAddress);
542 ulRVAResourceSection = sh.VirtualAddress;
543 }
544
545 if (loadType == REAL_LOAD)
546 {
547 if(processImports((char *)win32file) == FALSE) {
548 dprintf((LOG, "Failed to process imports!" ));
549 goto failure;
550 }
551 }
552
553 return(TRUE);
554failure:
555 if(memmap) {
556 delete memmap;
557 memmap = NULL;
558 }
559 if(hFile) {
560 OSLibDosClose(hFile);
561 hFile = 0;
562 }
563 errorState = ERROR_INTERNAL;
564 return FALSE;
565}
566//******************************************************************************
567//commits image page(s) when an access violation exception is dispatched
568//virtAddress = address of exception (rounded down to page boundary)
569//******************************************************************************
570BOOL Win32PeLdrImage::commitPage(ULONG virtAddress, BOOL fWriteAccess, int fPageCmd)
571{
572 Section *section;
573 ULONG offset, size, sectionsize, protflags, fileoffset, range, attr;
574 ULONG ulNewPos, ulRead;
575 APIRET rc;
576
577 //Round down to nearest page boundary
578 virtAddress = virtAddress & ~0xFFF;
579
580 section = findSectionByOS2Addr(virtAddress);
581 if(section == NULL) {
582 size = 4096;
583 sectionsize = 4096;
584 protflags = PAG_READ|PAG_WRITE; //readonly?
585 section = findPreviousSectionByOS2Addr(virtAddress);
586 if(section == NULL) {//access to header
587 offset = 0;
588 fileoffset = virtAddress - realBaseAddress;
589 }
590 else {
591 offset = virtAddress - (section->realvirtaddr + section->virtualsize);
592 fileoffset = section->rawoffset + section->rawsize + offset;
593 }
594 }
595 else {
596 protflags = section->pageflags;
597 offset = virtAddress - section->realvirtaddr;
598 sectionsize = section->virtualsize - offset;
599
600 if(offset > section->rawsize || section->type == SECTION_UNINITDATA) {
601 //unintialized data (set to 0)
602 size = 0;
603 fileoffset = -1;
604 }
605 else {
606 size = section->rawsize-offset;
607 fileoffset = section->rawoffset + offset;
608 }
609 if(fWriteAccess & !(section->pageflags & PAG_WRITE)) {
610 dprintf((LOG, "Win32PeLdrImage::commitPage: No write access to 0%x!", virtAddress));
611 return FALSE;
612 }
613 }
614 //Check range of pages with the same attributes starting at virtAddress
615 //(some pages might already have been loaded)
616 range = sectionsize;
617 rc = DosQueryMem((PVOID)virtAddress, &range, &attr);
618 if(rc) {
619 dprintf((LOG, "Win32PeLdrImage::commitPage: DosQueryMem for %x returned %d", virtAddress, rc));
620 return FALSE;
621 }
622 if(attr & PAG_COMMIT) {
623 dprintf((LOG, "Win32PeLdrImage::commitPage: Memory at 0x%x already committed!", virtAddress));
624 return FALSE;
625 }
626
627 if(fPageCmd == SINGLE_PAGE) {
628 size = min(size, PAGE_SIZE);
629 sectionsize = min(sectionsize, PAGE_SIZE);
630 }
631 else
632 if(fPageCmd == SECTION_PAGES) {
633 size = min(size, DEFAULT_NR_PAGES*PAGE_SIZE);
634 sectionsize = min(sectionsize, DEFAULT_NR_PAGES*PAGE_SIZE);
635 }
636 size = min(size, range);
637 sectionsize = min(sectionsize, range);
638
639 if(fileoffset != -1) {
640 rc = DosSetMem((PVOID)virtAddress, sectionsize, PAG_READ|PAG_WRITE|PAG_COMMIT);
641 if(rc) {
642 dprintf((LOG, "Win32PeLdrImage::commitPage: DosSetMem failed (%d)!", rc));
643 return FALSE;
644 }
645
646 if(DosSetFilePtr(hFile, fileoffset, FILE_BEGIN, &ulNewPos) == -1) {
647 dprintf((LOG, "Win32PeLdrImage::commitPage: DosSetFilePtr failed for 0x%x!", fileoffset));
648 return FALSE;
649 }
650 if(DosRead(hFile, (PVOID)virtAddress, size, &ulRead)) {
651 dprintf((LOG, "Win32PeLdrImage::commitPage: DosRead failed for 0x%x!", virtAddress));
652 return FALSE;
653 }
654 if(ulRead != size) {
655 dprintf((LOG, "Win32PeLdrImage::commitPage: DosRead failed to read %x (%x) bytes at %x for 0x%x!", size, ulRead, fileoffset, virtAddress));
656 return FALSE;
657 }
658 setFixups(virtAddress, sectionsize);
659
660 rc = DosSetMem((PVOID)virtAddress, sectionsize, protflags);
661 if(rc) {
662 dprintf((LOG, "Win32PeLdrImage::commitPage: DosSetMem failed (%d)!", rc));
663 return FALSE;
664 }
665 }
666 else {
667 rc = DosSetMem((PVOID)virtAddress, sectionsize, PAG_READ|PAG_WRITE|PAG_COMMIT);
668 if(rc) {
669 dprintf((LOG, "Win32PeLdrImage::commitPage: DosSetMem failed (%d)!", rc));
670 return FALSE;
671 }
672 setFixups(virtAddress, sectionsize);
673
674 rc = DosSetMem((PVOID)virtAddress, sectionsize, protflags);
675 if(rc) {
676 dprintf((LOG, "Win32PeLdrImage::commitPage: DosSetMem failed (%d)!", rc));
677 return FALSE;
678 }
679 }
680 return TRUE;
681}
682//******************************************************************************
683//******************************************************************************
684void Win32PeLdrImage::addSection(ULONG type, ULONG rawoffset, ULONG rawsize, ULONG virtaddress, ULONG virtsize, ULONG flags)
685{
686 virtsize = max(rawsize, virtsize);
687
688 section[nrsections].rawoffset = rawoffset;
689 section[nrsections].type = type;
690 section[nrsections].rawsize = rawsize;
691 section[nrsections].virtaddr = virtaddress;
692 section[nrsections].flags = flags;
693
694 virtsize = ((virtsize - 1) & ~0xFFF) + PAGE_SIZE;
695 imageSize += virtsize;
696 section[nrsections].virtualsize = virtsize;
697
698 if(virtaddress < imageVirtBase)
699 imageVirtBase = virtaddress;
700 if(virtaddress + virtsize > imageVirtEnd)
701 imageVirtEnd = virtaddress + virtsize;
702
703 nrsections++;
704}
705//******************************************************************************
706//******************************************************************************
707BOOL Win32PeLdrImage::allocSections(ULONG reservedMem)
708{
709 APIRET rc;
710 ULONG baseAddress;
711
712 realBaseAddress = 0;
713
714 //Allocated in peldr.dll
715 if(reservedMem && reservedMem == oh.ImageBase) {
716 realBaseAddress = oh.ImageBase;
717 return TRUE;
718 }
719
720 //SvL: We don't care where the image is loaded for resource lookup
721 if(fh.Characteristics & IMAGE_FILE_RELOCS_STRIPPED && loadType == REAL_LOAD) {
722 return allocFixedMem(reservedMem);
723 }
724 rc = DosAllocMem((PPVOID)&baseAddress, imageSize, PAG_READ | PAG_WRITE | flAllocMem);
725 if(rc) {
726 dprintf((LOG, "Win32PeLdrImage::allocSections, DosAllocMem returned %d", rc));
727 errorState = rc;
728 return(FALSE);
729 }
730 realBaseAddress = baseAddress;
731 return(TRUE);
732}
733//******************************************************************************
734//******************************************************************************
735Section *Win32PeLdrImage::findSection(ULONG type)
736{
737 for(int i=0;i<nrsections;i++) {
738 if(section[i].type == type) {
739 return &section[i];
740 }
741 }
742 return NULL;
743}
744//******************************************************************************
745//******************************************************************************
746Section *Win32PeLdrImage::findSectionByAddr(ULONG addr)
747{
748 for(int i=0;i<nrsections;i++) {
749 if(section[i].virtaddr <= addr && section[i].virtaddr + section[i].virtualsize > addr) {
750 return &section[i];
751 }
752 }
753 return NULL;
754}
755//******************************************************************************
756//******************************************************************************
757Section *Win32PeLdrImage::findSectionByOS2Addr(ULONG addr)
758{
759 for(int i=0;i<nrsections;i++) {
760 if(section[i].realvirtaddr <= addr && section[i].realvirtaddr + section[i].virtualsize > addr) {
761 return &section[i];
762 }
763 }
764 return NULL;
765}
766//******************************************************************************
767//******************************************************************************
768Section *Win32PeLdrImage::findPreviousSectionByOS2Addr(ULONG addr)
769{
770 ULONG lowestAddr = 0xffffffff;
771 ULONG index = -1;
772
773 for(int i=0;i<nrsections;i++) {
774 if(section[i].realvirtaddr > addr) {
775 if(section[i].realvirtaddr < lowestAddr) {
776 lowestAddr = section[i].realvirtaddr;
777 index = i;
778 }
779 }
780 }
781 if(index == -1)
782 return NULL;
783
784 return &section[index];
785}
786//******************************************************************************
787#define FALLOC_SIZE (1024*1024)
788//NOTE: Needs testing (while loop)
789//TODO: Free unused (parts of) reservedMem
790//******************************************************************************
791BOOL Win32PeLdrImage::allocFixedMem(ULONG reservedMem)
792{
793 ULONG address = 0;
794 ULONG *memallocs;
795 ULONG alloccnt = 0;
796 ULONG diff, i, baseAddress;
797 APIRET rc;
798 BOOL allocFlags = flAllocMem;
799
800 //Reserve enough space to store 4096 pointers to 1MB memory chunks
801 memallocs = (ULONG *)malloc(4096*sizeof(ULONG *));
802 if(memallocs == NULL) {
803 dprintf((LOG, "allocFixedMem: MALLOC FAILED for memallocs" ));
804 return FALSE;
805 }
806
807 if(oh.ImageBase < 512*1024*1024) {
808 allocFlags = 0;
809 }
810 while(TRUE) {
811 rc = DosAllocMem((PPVOID)&address, FALLOC_SIZE, PAG_READ | allocFlags);
812 if(rc) break;
813
814 dprintf((LOG, "DosAllocMem returned %x", address ));
815 if(address + FALLOC_SIZE >= oh.ImageBase) {
816 if(address > oh.ImageBase) {//we've passed it!
817 DosFreeMem((PVOID)address);
818 break;
819 }
820 //found the right address
821 DosFreeMem((PVOID)address);
822
823 diff = oh.ImageBase - address;
824 if(diff) {
825 rc = DosAllocMem((PPVOID)&address, diff, PAG_READ | allocFlags);
826 if(rc) break;
827 }
828 rc = DosAllocMem((PPVOID)&baseAddress, imageSize, PAG_READ | PAG_WRITE | allocFlags);
829 if(rc) break;
830
831 if(diff) DosFreeMem((PVOID)address);
832
833 realBaseAddress = baseAddress;
834 break;
835 }
836 memallocs[alloccnt++] = address;
837 }
838 for(i=0;i<alloccnt;i++) {
839 DosFreeMem((PVOID)memallocs[i]);
840 }
841 free(memallocs);
842
843 if(realBaseAddress == 0) //Let me guess.. MS Office app?
844 return(FALSE);
845
846 return(TRUE);
847}
848//******************************************************************************
849//******************************************************************************
850BOOL Win32PeLdrImage::setMemFlags()
851{
852 int i;
853 WINIMAGE_LOOKUP *imgLookup;
854
855 imgLookup = WINIMAGE_LOOKUPADDR(realBaseAddress);
856 imgLookup->magic1 = MAGIC_WINIMAGE;
857 imgLookup->image = this;
858 imgLookup->magic2 = MAGIC_WINIMAGE;
859
860 // Process all the image sections
861 for(i=0;i<nrsections;i++) {
862 section[i].realvirtaddr = realBaseAddress + (section[i].virtaddr - oh.ImageBase);
863 }
864
865 for(i=0;i<nrsections;i++) {
866 switch(section[i].type)
867 {
868 case SECTION_CODE:
869 case (SECTION_CODE | SECTION_IMPORT):
870 section[i].pageflags = PAG_EXECUTE | PAG_READ;
871 if(section[i].flags & IMAGE_SCN_MEM_WRITE)
872 section[i].pageflags |= PAG_WRITE;
873 break;
874 case SECTION_INITDATA:
875 case SECTION_UNINITDATA:
876 case SECTION_IMPORT: //TODO: read only?
877 section[i].pageflags = PAG_WRITE | PAG_READ;
878 break;
879
880 case SECTION_RESOURCE:
881 //TODO: GDI32 changes some bitmap structures to avoid problems in Open32
882 // -> causes crashes if resource section is readonly
883 // -> make it readonly again when gdi32 has been rewritten
884 section[i].pageflags = PAG_WRITE | PAG_READ;
885 break;
886
887 case SECTION_READONLYDATA:
888 case SECTION_TLS:
889 default:
890 section[i].pageflags = PAG_READ;
891 break;
892 }
893 }
894 return(TRUE);
895}
896//******************************************************************************
897//******************************************************************************
898BOOL Win32PeLdrImage::setFixups(ULONG virtAddress, ULONG size)
899{
900 int i, j;
901 char *page;
902 ULONG count, newpage;
903 Section *section;
904 PIMAGE_BASE_RELOCATION prel = pFixups;
905
906 if(realBaseAddress == oh.ImageBase || fh.Characteristics & IMAGE_FILE_RELOCS_STRIPPED) {
907 return(TRUE);
908 }
909
910 virtAddress -= realBaseAddress;
911 //round size to next page boundary
912 size = (size-1) & ~0xFFF;
913 size += PAGE_SIZE;
914
915 if(prel) {
916 j = 1;
917 while(((ULONG)prel < (ULONG)pFixups+dwFixupSize) &&
918 prel->VirtualAddress && prel->VirtualAddress < virtAddress)
919 {
920 prel = (PIMAGE_BASE_RELOCATION)((char*)prel + prel->SizeOfBlock);
921 }
922 while(((ULONG)prel < (ULONG)pFixups+dwFixupSize) &&
923 prel->VirtualAddress && prel->VirtualAddress < virtAddress + size)
924 {
925 page = (char *)((char *)prel + (ULONG)prel->VirtualAddress);
926 count = (prel->SizeOfBlock - 8)/2;
927 j++;
928 for(i=0;i<count;i++) {
929 int type = prel->TypeOffset[i] >> 12;
930 int offset = prel->TypeOffset[i] & 0xFFF;
931 int fixupsize = 0;
932
933 switch(type)
934 {
935 case IMAGE_REL_BASED_HIGHLOW:
936 fixupsize = 4;
937 break;
938 case IMAGE_REL_BASED_HIGH:
939 case IMAGE_REL_BASED_LOW:
940 fixupsize = 2;
941 break;
942 }
943 //If the fixup crosses the final page boundary,
944 //then we have to load another page
945 if(prel->VirtualAddress + offset + fixupsize > virtAddress + size)
946 {
947 newpage = realBaseAddress + prel->VirtualAddress + offset + fixupsize;
948 newpage &= ~0xFFF;
949
950 section = findSectionByOS2Addr(newpage);
951 if(section == NULL) {
952 //should never happen
953 dprintf((LOG, "::setFixups -> section == NULL!!"));
954 return FALSE;
955 }
956 //SvL: Read page from disk
957 commitPage(newpage, FALSE, SINGLE_PAGE);
958
959 //SvL: Enable write access
960 DosSetMem((PVOID)newpage, PAGE_SIZE, PAG_READ|PAG_WRITE);
961 }
962
963 switch(type)
964 {
965 case IMAGE_REL_BASED_ABSOLUTE:
966 break; //skip
967 case IMAGE_REL_BASED_HIGHLOW:
968 AddOff32Fixup(prel->VirtualAddress + offset);
969 break;
970 case IMAGE_REL_BASED_HIGH:
971 AddOff16Fixup(prel->VirtualAddress + offset, TRUE);
972 break;
973 case IMAGE_REL_BASED_LOW:
974 AddOff16Fixup(prel->VirtualAddress + offset, FALSE);
975 break;
976 case IMAGE_REL_BASED_HIGHADJ:
977 case IMAGE_REL_BASED_MIPS_JMPADDR:
978 default:
979 break;
980 }
981 if(prel->VirtualAddress + offset + fixupsize > virtAddress + size)
982 {
983 //SvL: Restore original page protection flags
984 DosSetMem((PVOID)newpage, PAGE_SIZE, section->pageflags);
985 }
986 }
987 prel = (PIMAGE_BASE_RELOCATION)((char*)prel + prel->SizeOfBlock);
988 }//while
989 }
990 else {
991 dprintf((LOG, "Win32PeLdrImage::setFixups, no fixups at %x, %d", virtAddress, size));
992 return(FALSE);
993 }
994 return(TRUE);
995}
996//******************************************************************************
997//******************************************************************************
998BOOL Win32PeLdrImage::setFixups(PIMAGE_BASE_RELOCATION prel)
999{
1000 int i, j;
1001 char *page;
1002 ULONG count;
1003
1004 if(fh.Characteristics & IMAGE_FILE_RELOCS_STRIPPED) {
1005 return(TRUE);
1006 }
1007
1008 if(prel) {
1009 j = 1;
1010 while(prel->VirtualAddress) {
1011 page = (char *)((char *)prel + (ULONG)prel->VirtualAddress);
1012 count = (prel->SizeOfBlock - 8)/2;
1013 dprintf((LOG, "Page %d Address %x Count %d", j, prel->VirtualAddress, count ));
1014 j++;
1015 for(i=0;i<count;i++) {
1016 int type = prel->TypeOffset[i] >> 12;
1017 int offset = prel->TypeOffset[i] & 0xFFF;
1018 switch(type) {
1019 case IMAGE_REL_BASED_ABSOLUTE:
1020//// dprintf((LOG, "absolute fixup; unused" ));
1021 break; //skip
1022 case IMAGE_REL_BASED_HIGHLOW:
1023//// dprintf((LOG, "address ", offset << " type ", type ));
1024 AddOff32Fixup(prel->VirtualAddress + offset);
1025 break;
1026 case IMAGE_REL_BASED_HIGH:
1027 AddOff16Fixup(prel->VirtualAddress + offset, TRUE);
1028 break;
1029 case IMAGE_REL_BASED_LOW:
1030 AddOff16Fixup(prel->VirtualAddress + offset, FALSE);
1031 break;
1032 case IMAGE_REL_BASED_HIGHADJ:
1033 case IMAGE_REL_BASED_MIPS_JMPADDR:
1034 default:
1035 dprintf((LOG, "Unknown/unsupported fixup type!" ));
1036 break;
1037 }
1038 }
1039 prel = (PIMAGE_BASE_RELOCATION)((char*)prel + prel->SizeOfBlock);
1040 }//while
1041 }
1042 else {
1043 dprintf((LOG, "No internal fixups found!" ));
1044 errorState = ERROR_INTERNAL;
1045 return(FALSE);
1046 }
1047 return(TRUE);
1048}
1049//******************************************************************************
1050//******************************************************************************
1051void Win32PeLdrImage::AddOff32Fixup(ULONG fixupaddr)
1052{
1053 ULONG orgaddr;
1054 ULONG *fixup;
1055
1056 fixup = (ULONG *)(fixupaddr + realBaseAddress);
1057 orgaddr = *fixup;
1058// dprintf((LOG, "AddOff32Fixup 0x%x org 0x%x -> new 0x%x", fixup, orgaddr, realBaseAddress + (*fixup - oh.ImageBase)));
1059 *fixup = realBaseAddress + (*fixup - oh.ImageBase);
1060}
1061//******************************************************************************
1062//******************************************************************************
1063void Win32PeLdrImage::AddOff16Fixup(ULONG fixupaddr, BOOL fHighFixup)
1064{
1065 ULONG orgaddr;
1066 USHORT *fixup;
1067
1068 fixup = (USHORT *)(fixupaddr + realBaseAddress);
1069 orgaddr = *fixup;
1070 if(fHighFixup) {
1071 *fixup += (USHORT)((realBaseAddress - oh.ImageBase) >> 16);
1072// dprintf((LOG, "AddOff16FixupH 0x%x org 0x%x -> new 0x%x", fixup, orgaddr, *fixup));
1073 }
1074 else {
1075 *fixup += (USHORT)((realBaseAddress - oh.ImageBase) & 0xFFFF);
1076// dprintf((LOG, "AddOff16FixupL 0x%x org 0x%x -> new 0x%x", fixup, orgaddr, *fixup));
1077 }
1078}
1079//******************************************************************************
1080//******************************************************************************
1081void Win32PeLdrImage::StoreImportByOrd(Win32DllBase *WinDll, ULONG ordinal, ULONG impaddr)
1082{
1083 ULONG *import;
1084 ULONG apiaddr;
1085
1086 import = (ULONG *)impaddr;
1087 apiaddr = WinDll->getApi(ordinal);
1088 if(apiaddr == 0)
1089 {
1090 dprintf((LOG, "KERNEL32:Win32PeLdrImage - %s.%u not found\n",
1091 WinDll->getName(),
1092 ordinal));
1093
1094 dprintf((LOG, "--->>> NOT FOUND!" ));
1095 *import = (ULONG)MissingApi;
1096 }
1097 else *import = apiaddr;
1098}
1099//******************************************************************************
1100//******************************************************************************
1101void Win32PeLdrImage::StoreImportByName(Win32DllBase *WinDll, char *impname, ULONG impaddr)
1102{
1103 ULONG *import;
1104 ULONG apiaddr;
1105
1106 import = (ULONG *)impaddr;
1107 apiaddr = WinDll->getApi(impname);
1108 if(apiaddr == 0)
1109 {
1110 dprintf((LOG, "KERNEL32:Win32PeLdrImage - %s.%s not found\n",
1111 WinDll->getName(),
1112 impname));
1113
1114 dprintf((LOG, "--->>> NOT FOUND!" ));
1115 *import = (ULONG)MissingApi;
1116 }
1117 else *import = apiaddr;
1118}
1119//******************************************************************************
1120//******************************************************************************
1121BOOL Win32PeLdrImage::processExports(char *win32file)
1122{
1123 IMAGE_SECTION_HEADER sh;
1124 PIMAGE_EXPORT_DIRECTORY ped;
1125 ULONG *ptrNames, *ptrAddress;
1126 USHORT *ptrOrd;
1127 int i;
1128
1129 /* get section header and pointer to data directory for .edata section */
1130 if((ped = (PIMAGE_EXPORT_DIRECTORY)ImageDirectoryOffset
1131 (win32file, IMAGE_DIRECTORY_ENTRY_EXPORT)) != NULL &&
1132 GetSectionHdrByImageDir(win32file, IMAGE_DIRECTORY_ENTRY_EXPORT, &sh) ) {
1133
1134 dprintf((LOG, "Exported Functions: " ));
1135 ptrOrd = (USHORT *)((ULONG)ped->AddressOfNameOrdinals +
1136 (ULONG)win32file);
1137 ptrNames = (ULONG *)((ULONG)ped->AddressOfNames +
1138 (ULONG)win32file);
1139 ptrAddress = (ULONG *)((ULONG)ped->AddressOfFunctions +
1140 (ULONG)win32file);
1141 nrOrdExports = ped->NumberOfFunctions;
1142 nrNameExports = ped->NumberOfNames;
1143
1144 int ord, RVAExport;
1145 char *name;
1146 for(i=0;i<ped->NumberOfNames;i++) {
1147 ord = ptrOrd[i] + ped->Base;
1148 name = (char *)((ULONG)ptrNames[i] + (ULONG)win32file);
1149 RVAExport = ptrAddress[ptrOrd[i]];
1150#ifdef FORWARDERS
1151 if(RVAExport < sh.VirtualAddress || RVAExport > sh.VirtualAddress + sh.SizeOfRawData) {
1152#endif
1153 //points to code (virtual address relative to oh.ImageBase
1154 AddNameExport(oh.ImageBase + RVAExport, name, ord);
1155 dprintf((LOG, "address 0x%x %s @%d", RVAExport, name, ord));
1156#ifdef FORWARDERS
1157
1158 }
1159 else {//forwarder
1160 char *forward = (char *)((ULONG)RVAExport + (ULONG)win32file);
1161 fout << RVAExport << " ", name << " @", ord << " is forwarder to ", (int)forward ));
1162 }
1163#endif
1164 }
1165 for(i=0;i<max(ped->NumberOfNames,ped->NumberOfFunctions);i++) {
1166 ord = ped->Base + i; //Correct??
1167 RVAExport = ptrAddress[i];
1168#ifdef FORWARDERS
1169 if(RVAExport < sh.VirtualAddress || RVAExport > sh.VirtualAddress + sh.SizeOfRawData) {
1170#endif
1171 if(RVAExport) {
1172 //points to code (virtual address relative to oh.ImageBase
1173 dprintf((LOG, "ord %d at 0x%x", ord, RVAExport));
1174 AddOrdExport(oh.ImageBase + RVAExport, ord);
1175 }
1176#ifdef FORWARDERS
1177 }
1178 else {//forwarder or empty
1179 char *forward = (char *)((ULONG)RVAExport + (ULONG)win32file);
1180 dprintf((LOG, "ord ", ord << " at 0x";
1181 fout << RVAExport << " is forwarder to 0x", (int)forward ));
1182 }
1183#endif
1184 }
1185 }
1186 return(TRUE);
1187}
1188//******************************************************************************
1189//******************************************************************************
1190void Win32PeLdrImage::AddNameExport(ULONG virtaddr, char *apiname, ULONG ordinal)
1191{
1192 ULONG nsize;
1193
1194 if(nameexports == NULL) {
1195 nameExportSize= 4096;
1196 nameexports = (NameExport *)malloc(nameExportSize);
1197 curnameexport = nameexports;
1198 }
1199 nsize = (ULONG)curnameexport - (ULONG)nameexports;
1200 if(nsize + sizeof(NameExport) + strlen(apiname) > nameExportSize) {
1201 nameExportSize += 4096;
1202 char *tmp = (char *)nameexports;
1203 nameexports = (NameExport *)malloc(nameExportSize);
1204 memcpy(nameexports, tmp, nsize);
1205 curnameexport = (NameExport *)((ULONG)nameexports + nsize);
1206 free(tmp);
1207 }
1208 curnameexport->virtaddr = realBaseAddress + (virtaddr - oh.ImageBase);
1209 curnameexport->ordinal = ordinal;
1210 *(ULONG *)curnameexport->name = 0;
1211 strcpy(curnameexport->name, apiname);
1212
1213 curnameexport->nlength = strlen(apiname) + 1;
1214 if(curnameexport->nlength < sizeof(curnameexport->name))
1215 curnameexport->nlength = sizeof(curnameexport->name);
1216
1217 curnameexport = (NameExport *)((ULONG)curnameexport->name + curnameexport->nlength);
1218}
1219//******************************************************************************
1220//******************************************************************************
1221void Win32PeLdrImage::AddOrdExport(ULONG virtaddr, ULONG ordinal)
1222{
1223 if(ordexports == NULL) {
1224 ordexports = (OrdExport *)malloc(nrOrdExports * sizeof(OrdExport));
1225 curordexport = ordexports;
1226 }
1227 curordexport->virtaddr = realBaseAddress + (virtaddr - oh.ImageBase);
1228 curordexport->ordinal = ordinal;
1229 curordexport++;
1230}
1231//******************************************************************************
1232/** All initial processing of imports is done here
1233 * Should now detect most Borland styled files including the GifCon32.exe and
1234 * loader32 from SoftIce. (Stupid Borland!!!)
1235 *
1236 * knut [Jul 22 1998 2:44am]
1237 **/
1238//******************************************************************************
1239BOOL Win32PeLdrImage::processImports(char *win32file)
1240{
1241 PIMAGE_IMPORT_DESCRIPTOR pID;
1242 IMAGE_SECTION_HEADER shID;
1243 IMAGE_SECTION_HEADER shExtra = {0};
1244 PIMAGE_OPTIONAL_HEADER pOH;
1245 int i,j, nrPages;
1246 BOOL fBorland = 0;
1247 int cModules;
1248 char *pszModules;
1249 char *pszCurModule;
1250 char *pszTmp;
1251 ULONG *pulImport;
1252 ULONG ulCurFixup;
1253 int Size;
1254 Win32DllBase *WinDll;
1255 Section *section;
1256
1257/* "algorithm:"
1258 * 1) get module names and store them
1259 * a) check dwRVAModuleName is within .idata seg - if not find section
1260 * 2) iterate thru functions of each module
1261 * a) check OriginalFirstThunk is not 0 and that it points to a RVA.
1262 * b) if not a) borland-styled PE-file - ARG!!!
1263 * check FirstThunk
1264 * c) check OriginalFirstThunk/FirstThunk ok RVAs and find right section
1265 * d) store ordinal/name import
1266 * 3) finished
1267 */
1268
1269 /* 1) get module names */
1270 pID = (PIMAGE_IMPORT_DESCRIPTOR)ImageDirectoryOffset(win32file, IMAGE_DIRECTORY_ENTRY_IMPORT);
1271 if (pID == NULL)
1272 return TRUE;
1273 if (!GetSectionHdrByImageDir(win32file, IMAGE_DIRECTORY_ENTRY_IMPORT, &shID))
1274 return TRUE;
1275
1276 //calc size of module list
1277 i = Size = cModules = 0;
1278 while (pID[i].Name != 0)
1279 {
1280 //test RVA inside ID-Section
1281 if (pID[i].Name >= shID.VirtualAddress && pID[i].Name < shID.VirtualAddress + max(shID.Misc.VirtualSize, shID.SizeOfRawData)) {
1282 pszTmp = (char*)(pID[i].Name + (ULONG)win32file);
1283 }
1284 else {
1285 //is the "Extra"-section already found or do we have to find it?
1286 if (pID[i].Name < shExtra.VirtualAddress || pID[i].Name >= shExtra.VirtualAddress + max(shExtra.Misc.VirtualSize, shExtra.SizeOfRawData)) {
1287 if (!GetSectionHdrByRVA(win32file, &shExtra, pID[i].Name))
1288 return FALSE;
1289 }
1290 pszTmp = (char*)(pID[i].Name + (ULONG)win32file);
1291 }
1292 Size += strlen(pszTmp) + 1;
1293 i++;
1294 cModules++;
1295 }
1296
1297 pszModules = (char*)malloc(Size);
1298 assert(pszModules != NULL);
1299 j = 0;
1300 for (i = 0; i < cModules; i++)
1301 {
1302 //test RVA inside ID-Section
1303 if (pID[i].Name >= shID.VirtualAddress && pID[i].Name < shID.VirtualAddress + max(shID.Misc.VirtualSize, shID.SizeOfRawData)) {
1304 pszTmp = (char*)(pID[i].Name + (ULONG)win32file);
1305 }
1306 else {
1307 fBorland = TRUE;
1308 //is the "Extra"-section already found or do we have to find it?
1309 if (pID[i].Name < shExtra.VirtualAddress || pID[i].Name >= shExtra.VirtualAddress + max(shExtra.Misc.VirtualSize, shExtra.SizeOfRawData))
1310 {
1311 if (GetSectionHdrByRVA(win32file, &shExtra, pID[i].Name)) {
1312 free(pszModules);
1313 return FALSE;
1314 }
1315 }
1316 pszTmp = (char*)(pID[i].Name + (ULONG)win32file);
1317 }
1318
1319 strcpy(pszModules+j, pszTmp);
1320 j += strlen(pszTmp) + 1;
1321 }
1322 if (fBorland)
1323 dprintf((LOG, "Borland-styled PE-File." ));
1324 //Store modules
1325 dprintf((LOG, "%d imported Modules: ", cModules ));
1326
1327 /* 2) functions */
1328 pszCurModule = pszModules;
1329 pOH = (PIMAGE_OPTIONAL_HEADER)OPTHEADEROFF(win32file);
1330 for (i = 0; i < cModules; i++)
1331 {
1332 dprintf((LOG, "Module %s", pszCurModule ));
1333 // a) check that OriginalFirstThunk not is 0 and look for Borland-styled PE
1334 if (i == 0)
1335 {
1336 //heavy borland-style test - assume array of thunks is within that style does not change
1337 if((ULONG)pID[i].u.OriginalFirstThunk == 0 ||
1338 (ULONG)pID[i].u.OriginalFirstThunk < shID.VirtualAddress ||
1339 (ULONG)pID[i].u.OriginalFirstThunk >= shID.VirtualAddress + max(shID.Misc.VirtualSize, shID.SizeOfRawData) ||
1340 (ULONG)pID[i].u.OriginalFirstThunk >= pOH->DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT].VirtualAddress &&
1341 (ULONG)pID[i].u.OriginalFirstThunk < sizeof(*pID)*cModules + pOH->DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT].VirtualAddress)
1342 {
1343 fBorland = TRUE;
1344 }
1345 }
1346 //light borland-style test
1347 if (pID[i].u.OriginalFirstThunk == 0 || fBorland) {
1348 pulImport = (ULONG*)pID[i].FirstThunk;
1349 }
1350 else pulImport = (ULONG*)pID[i].u.OriginalFirstThunk;
1351
1352 // b) check if RVA ok
1353 if (!(pulImport > 0 && (ULONG)pulImport < pOH->SizeOfImage)) {
1354 dprintf((LOG, "Invalid RVA %x", pulImport ));
1355 break;
1356 }
1357 // check section
1358 if ((ULONG)pulImport < shExtra.VirtualAddress || (ULONG)pulImport >= shExtra.VirtualAddress + max(shExtra.Misc.VirtualSize, shExtra.SizeOfRawData))
1359 {
1360 if (!GetSectionHdrByRVA(win32file, &shExtra, (ULONG)pulImport))
1361 {
1362 dprintf((LOG, "warning: could not find section for Thunk RVA %x", pulImport ));
1363 break;
1364 }
1365 }
1366
1367 //SvL: Load dll if needed
1368 dprintf((LOG, "**********************************************************************" ));
1369 dprintf((LOG, "************** Import Module %s ", pszCurModule ));
1370 dprintf((LOG, "**********************************************************************" ));
1371 WinDll = Win32DllBase::findModule(pszCurModule);
1372
1373 if(WinDll == NULL)
1374 { //not found, so load it
1375 char modname[CCHMAXPATH];
1376
1377 strcpy(modname, pszCurModule);
1378 //rename dll if necessary (i.e. OLE32 -> OLE32OS2)
1379 Win32DllBase::renameDll(modname);
1380
1381 if(isPEImage(modname) != ERROR_SUCCESS_W)
1382 {//LX image, so let OS/2 do all the work for us
1383 APIRET rc;
1384 char szModuleFailure[CCHMAXPATH] = "";
1385 ULONG hInstanceNewDll;
1386 Win32LxDll *lxdll;
1387
1388 char *dot = strchr(modname, '.');
1389 if(dot) {
1390 *dot = 0;
1391 }
1392 strcat(modname, ".DLL");
1393 rc = DosLoadModule(szModuleFailure, sizeof(szModuleFailure), modname, (HMODULE *)&hInstanceNewDll);
1394 if(rc) {
1395 dprintf((LOG, "DosLoadModule returned %X for %s\n", rc, szModuleFailure));
1396 sprintf(szErrorModule, "%s.DLL", szModuleFailure);
1397 errorState = rc;
1398 return(FALSE);
1399 }
1400 lxdll = Win32LxDll::findModuleByOS2Handle(hInstanceNewDll);
1401 if(lxdll == NULL) {//shouldn't happen!
1402 dprintf((LOG, "Just loaded the dll, but can't find it anywhere?!!?"));
1403 errorState = ERROR_INTERNAL;
1404 return(FALSE);
1405 }
1406 lxdll->setDllHandleOS2(hInstanceNewDll);
1407 lxdll->AddRef();
1408 WinDll = (Win32DllBase*)lxdll;
1409 }
1410 else {
1411 Win32PeLdrDll *pedll;
1412
1413 pedll = new Win32PeLdrDll(modname, this);
1414 if(pedll == NULL) {
1415 dprintf((LOG, "pedll: Error allocating memory" ));
1416 WinMessageBox(HWND_DESKTOP, HWND_DESKTOP, szMemErrorMsg, szErrorTitle, 0, MB_OK | MB_ERROR | MB_MOVEABLE);
1417 errorState = ERROR_INTERNAL;
1418 return(FALSE);
1419 }
1420 dprintf((LOG, "**********************************************************************" ));
1421 dprintf((LOG, "********************** Loading Module *********************" ));
1422 dprintf((LOG, "**********************************************************************" ));
1423 if(pedll->init(0) == FALSE) {
1424 dprintf((LOG, "Internal WinDll error ", pedll->getError() ));
1425 return(FALSE);
1426 }
1427#ifdef DEBUG
1428 pedll->AddRef(getModuleName());
1429#else
1430 pedll->AddRef();
1431#endif
1432 if(pedll->attachProcess() == FALSE) {
1433 dprintf((LOG, "attachProcess failed!" ));
1434 delete pedll;
1435 errorState = ERROR_INTERNAL;
1436 return(FALSE);
1437 }
1438 WinDll = (Win32DllBase*)pedll;
1439 }
1440
1441 dprintf((LOG, "**********************************************************************" ));
1442 dprintf((LOG, "********************** Finished Loading Module *********************" ));
1443 dprintf((LOG, "**********************************************************************" ));
1444 }
1445 else {
1446 WinDll->AddRef();
1447
1448 dprintf((LOG, "Already found ", pszCurModule));
1449 }
1450 //add the dll we just loaded to dependency list for this image
1451 addDependency(WinDll);
1452
1453 //Make sure the dependency list is correct (already done
1454 //in the ctor of Win32DllBase, but for LX dlls the parent is
1455 //then set to NULL; so change it here again
1456 WinDll->setUnloadOrder(this);
1457
1458 pulImport = (PULONG)((ULONG)pulImport + (ULONG)win32file);
1459 j = 0;
1460 ulCurFixup = (ULONG)pID[i].FirstThunk + (ULONG)win32file;
1461
1462 section = findSectionByOS2Addr(ulCurFixup);
1463 if(section == NULL) {
1464 dprintf((LOG, "Unable to find section for %x", ulCurFixup ));
1465 return FALSE;
1466 }
1467 //SvL: Read page from disk
1468 commitPage(ulCurFixup & ~0xfff, FALSE, SINGLE_PAGE);
1469 //SvL: Enable write access
1470 DosSetMem((PVOID)(ulCurFixup & ~0xfff), PAGE_SIZE, PAG_READ|PAG_WRITE);
1471 nrPages = 1;
1472
1473 while (pulImport[j] != 0) {
1474 if (pulImport[j] & IMAGE_ORDINAL_FLAG) { //ordinal
1475 dprintf((LOG, "0x%08x Imported function %s @%d", ulCurFixup , pszCurModule, (pulImport[j] & ~IMAGE_ORDINAL_FLAG) ));
1476 StoreImportByOrd(WinDll, pulImport[j] & ~IMAGE_ORDINAL_FLAG, ulCurFixup);
1477 }
1478 else { //name
1479 //check
1480 if (pulImport[j] < shExtra.VirtualAddress || pulImport[j] >= shExtra.VirtualAddress + max(shExtra.Misc.VirtualSize, shExtra.SizeOfRawData)) {
1481 if (!GetSectionHdrByRVA(win32file, &shExtra, pulImport[j]))
1482 {
1483 dprintf((LOG, "warning: could not find section for Import Name RVA ", pulImport[j] ));
1484 break;
1485 }
1486 }
1487 //KSO - Aug 6 1998 1:15am:this eases comparing...
1488 char *pszFunctionName = (char*)(pulImport[j] + (ULONG)win32file + 2);
1489 dprintf((LOG, "0x%08x Imported function %s", ulCurFixup, pszFunctionName ));
1490 StoreImportByName(WinDll, pszFunctionName, ulCurFixup);
1491 }
1492 ulCurFixup += sizeof(IMAGE_THUNK_DATA);
1493 j++;
1494 if((ulCurFixup & 0xfff) == 0) {
1495 commitPage(ulCurFixup & ~0xfff, FALSE, SINGLE_PAGE);
1496 DosSetMem((PVOID)(ulCurFixup & ~0xfff), PAGE_SIZE, PAG_READ|PAG_WRITE);
1497 nrPages++;
1498 }
1499 }
1500 //SvL: And restore original protection flags
1501 ulCurFixup = (ULONG)pID[i].FirstThunk + pOH->ImageBase;
1502 DosSetMem((PVOID)(ulCurFixup & ~0xfff), PAGE_SIZE*nrPages, section->pageflags);
1503
1504 dprintf((LOG, "**********************************************************************" ));
1505 dprintf((LOG, "************** End Import Module %s ", pszCurModule ));
1506 dprintf((LOG, "**********************************************************************" ));
1507
1508 pszCurModule += strlen(pszCurModule) + 1;
1509 }//for (i = 0; i < cModules; i++)
1510
1511 free(pszModules);
1512 return TRUE;
1513}
1514//******************************************************************************
1515//******************************************************************************
1516BOOL Win32PeLdrImage::insideModule(ULONG address)
1517{
1518 if((address >= realBaseAddress) && (address < realBaseAddress + imageSize)) {
1519 return TRUE;
1520 }
1521 return FALSE;
1522}
1523//******************************************************************************
1524//******************************************************************************
1525BOOL Win32PeLdrImage::insideModuleCode(ULONG address)
1526{
1527 Section *sect;
1528
1529 sect = findSectionByOS2Addr(address);
1530 if(sect && (sect->pageflags & PAG_EXECUTE)) {
1531 return TRUE;
1532 }
1533 return FALSE;
1534}
1535//******************************************************************************
1536//******************************************************************************
1537ULONG Win32PeLdrImage::getImageSize()
1538{
1539 return imageSize;
1540}
1541//******************************************************************************
1542//******************************************************************************
1543ULONG Win32PeLdrImage::getApi(char *name)
1544{
1545 ULONG apiaddr, i, apilen;
1546 char *apiname;
1547 char tmp[4];
1548 NameExport *curexport;
1549 ULONG ulAPIOrdinal; /* api requested by ordinal */
1550
1551 apilen = strlen(name) + 1;
1552 if(apilen < 4)
1553 {
1554 *(ULONG *)tmp = 0;
1555 strcpy(tmp, name);
1556 apiname = tmp;
1557 apilen = 4;
1558 }
1559 else apiname = name;
1560
1561 curexport = nameexports;
1562 for(i=0; i<nrNameExports; i++)
1563 {
1564 if(apilen == curexport->nlength &&
1565 *(ULONG *)curexport->name == *(ULONG *)apiname)
1566 {
1567 if(strcmp(curexport->name, apiname) == 0)
1568 return(curexport->virtaddr);
1569 }
1570 curexport = (NameExport *)((ULONG)curexport->name + curexport->nlength);
1571 }
1572 return(0);
1573}
1574//******************************************************************************
1575//******************************************************************************
1576ULONG Win32PeLdrImage::getApi(int ordinal)
1577{
1578 ULONG apiaddr, i;
1579 OrdExport *curexport;
1580 NameExport *nexport;
1581
1582 curexport = ordexports;
1583 for(i=0;i<nrOrdExports;i++) {
1584 if(curexport->ordinal == ordinal)
1585 return(curexport->virtaddr);
1586 curexport++;
1587 }
1588 //Name exports also contain an ordinal, so check this
1589 nexport = nameexports;
1590 for(i=0;i<nrNameExports;i++) {
1591 if(nexport->ordinal == ordinal)
1592 return(nexport->virtaddr);
1593
1594 nexport = (NameExport *)((ULONG)nexport->name + nexport->nlength);
1595 }
1596 return(0);
1597}
1598//******************************************************************************
1599//Returns required OS version for this image
1600//******************************************************************************
1601ULONG Win32PeLdrImage::getVersion()
1602{
1603 return (oh.MajorOperatingSystemVersion << 16) | oh.MinorOperatingSystemVersion;
1604}
1605//******************************************************************************
1606//******************************************************************************
1607ULONG MissingApi()
1608{
1609 static BOOL fIgnore = FALSE;
1610 int r;
1611
1612 dprintf((LOG, "Missing api called!\n"));
1613 if(fIgnore)
1614 return(0);
1615
1616 do {
1617 r = WinMessageBox(HWND_DESKTOP, NULLHANDLE, "The application has called a non-existing api\n",
1618 "Internal Odin Error", 0, MB_ABORTRETRYIGNORE | MB_ICONEXCLAMATION | MB_MOVEABLE);
1619 }
1620 while(r == MBID_RETRY); //giggle
1621
1622 if( r != MBID_IGNORE )
1623 ExitProcess(987);
1624
1625 fIgnore = TRUE;
1626 return(0);
1627}
1628/******************************************************************************/
1629/******************************************************************************/
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