source: trunk/src/kernel32/winimagepeldr.cpp@ 5850

Last change on this file since 5850 was 5850, checked in by phaller, 24 years ago

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File size: 73.6 KB
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1/*
2 * Win32 PE loader Image base class
3 *
4 * Copyright 1998-2000 Sander van Leeuwen (sandervl@xs4all.nl)
5 * Copyright 1998 Knut St. Osmundsen
6 *
7 * Project Odin Software License can be found in LICENSE.TXT
8 *
9 * TODO: Check psh[i].Characteristics for more than only the code section
10 * TODO: Make resource section readonly when GDI32 is fixed
11 * TODO: Loading of forwarder dlls before handling imports might not be correct
12 * (circular dependencies; have to check what NT does)
13 * TODO: Two LoadLibrary calls in two threads at the same time won't be handled properly (rare but possible)
14 *
15 * NOTE: FLAG_PELDR_LOADASDATAFILE is a special flag to only load the resource directory
16 * of a PE image. Processing imports, sections etc is not done.
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 "winexebase.h"
46#include <pefile.h>
47#include <unicode.h>
48#include "oslibmisc.h"
49#include "initterm.h"
50#include <win\virtual.h>
51#include "oslibdos.h"
52#include "mmap.h"
53#include <wprocess.h>
54
55
56//Define COMMIT_ALL to let the pe loader commit all sections of the image
57//This is very useful during debugging as you'll get lots of exceptions
58//otherwise.
59//#ifdef DEBUG
60#define COMMIT_ALL
61//#endif
62
63char szErrorTitle[] = "Odin";
64char szMemErrorMsg[] = "Memory allocation failure";
65char szFileErrorMsg[] = "File IO error";
66char szPEErrorMsg[] = "Not a valid win32 exe. (perhaps 16 bits windows)";
67char szCPUErrorMsg[] = "Executable doesn't run on x86 machines";
68char szExeErrorMsg[] = "File isn't an executable";
69char szInteralErrorMsg[]= "Internal Error";
70char szErrorModule[128] = "";
71
72#ifdef DEBUG
73static FILE *_privateLogFile = NULL;
74#endif
75
76ULONG MissingApi();
77
78//******************************************************************************
79//******************************************************************************
80void OpenPrivateLogFilePE()
81{
82#ifdef DEBUG
83 char logname[CCHMAXPATH];
84
85 sprintf(logname, "pe_%d.log", loadNr);
86 _privateLogFile = fopen(logname, "w");
87 if(_privateLogFile == NULL) {
88 sprintf(logname, "%spe_%d.log", kernel32Path, loadNr);
89 _privateLogFile = fopen(logname, "w");
90 }
91 dprintfGlobal(("PE LOGFILE : %s", logname));
92#endif
93}
94//******************************************************************************
95//******************************************************************************
96void ClosePrivateLogFilePE()
97{
98#ifdef DEBUG
99 if(_privateLogFile) {
100 fclose(_privateLogFile);
101 _privateLogFile = NULL;
102 }
103#endif
104}
105//******************************************************************************
106//******************************************************************************
107Win32PeLdrImage::Win32PeLdrImage(char *pszFileName, BOOL isExe) :
108 Win32ImageBase(-1),
109 nrsections(0), imageSize(0), dwFlags(0), section(NULL),
110 imageVirtBase(-1), realBaseAddress(0), imageVirtEnd(0),
111 nrNameExports(0), nrOrdExports(0),
112 nameexports(NULL), ordexports(NULL),
113 curnameexport(NULL), curordexport(NULL),
114 memmap(NULL), pFixups(NULL), dwFixupSize(0)
115{
116 HFILE dllfile;
117
118 strcpy(szFileName, pszFileName);
119 strupr(szFileName);
120 if(isExe) {
121 if(!strchr(szFileName, '.')) {
122 strcat(szFileName,".EXE");
123 }
124 dllfile = OSLibDosOpen(szFileName, OSLIB_ACCESS_READONLY|OSLIB_ACCESS_SHAREDENYNONE);
125 if(dllfile == NULL) {
126 if(!strstr(szFileName, ".EXE")) {
127 strcat(szFileName,".EXE");
128 }
129 dllfile = OSLibDosOpen(szFileName, OSLIB_ACCESS_READONLY|OSLIB_ACCESS_SHAREDENYNONE);
130 if(dllfile == NULL) {
131 OSLibDosSearchPath(OSLIB_SEARCHENV, "PATH", szFileName, szFileName, sizeof(szFileName));
132 }
133 }
134 else OSLibDosClose(dllfile);
135 }
136 else {
137 findDll(szFileName, szModule, sizeof(szModule));
138 strcpy(szFileName, szModule);
139 }
140 strcpy(szModule, OSLibStripPath(szFileName));
141 strupr(szModule);
142}
143//******************************************************************************
144//******************************************************************************
145Win32PeLdrImage::~Win32PeLdrImage()
146{
147 if(memmap)
148 delete memmap;
149
150 if(hFile) {
151 OSLibDosClose(hFile);
152 hFile = 0;
153 }
154
155 if(realBaseAddress)
156 DosFreeMem((PVOID)realBaseAddress);
157
158 if(nameexports)
159 free(nameexports);
160
161 if(ordexports)
162 free(ordexports);
163
164 if(section)
165 free(section);
166}
167//******************************************************************************
168//******************************************************************************
169BOOL Win32PeLdrImage::init(ULONG reservedMem)
170{
171 LPVOID win32file = NULL;
172 ULONG filesize, ulRead, ulNewPos;
173 PIMAGE_SECTION_HEADER psh;
174 IMAGE_SECTION_HEADER sh;
175 IMAGE_TLS_DIRECTORY *tlsDir = NULL;
176 int nSections, i;
177 char szFullPath[CCHMAXPATH] = "";
178 IMAGE_DOS_HEADER doshdr;
179 ULONG signature;
180
181 hFile = OSLibDosOpen(szFileName, OSLIB_ACCESS_READONLY|OSLIB_ACCESS_SHAREDENYNONE);
182
183 //default error:
184 strcpy(szErrorModule, OSLibStripPath(szFileName));
185 if(hFile == NULL) {
186 goto failure;
187 }
188 //read dos header
189 if(DosRead(hFile, (LPVOID)&doshdr, sizeof(doshdr), &ulRead)) {
190 goto failure;
191 }
192 if(OSLibDosSetFilePtr(hFile, doshdr.e_lfanew, OSLIB_SETPTR_FILE_BEGIN) == -1) {
193 goto failure;
194 }
195 //read signature dword
196 if(DosRead(hFile, (LPVOID)&signature, sizeof(signature), &ulRead)) {
197 goto failure;
198 }
199 //read pe header
200 if(DosRead(hFile, (LPVOID)&fh, sizeof(fh), &ulRead)) {
201 goto failure;
202 }
203 //read optional header
204 if(DosRead(hFile, (LPVOID)&oh, sizeof(oh), &ulRead)) {
205 goto failure;
206 }
207 if(doshdr.e_magic != IMAGE_DOS_SIGNATURE || signature != IMAGE_NT_SIGNATURE) {
208 dprintf((LOG, "Not a valid PE file (probably a 16 bits windows exe/dll)!"));
209 WinMessageBox(HWND_DESKTOP, HWND_DESKTOP, szPEErrorMsg, szErrorTitle, 0, MB_OK | MB_ERROR | MB_MOVEABLE);
210 goto failure;
211 }
212
213 if(oh.SizeOfImage == 0) {//just in case
214 oh.SizeOfImage = OSLibDosGetFileSize(hFile, NULL);
215 }
216
217 imageSize = oh.SizeOfImage;
218 //Allocate memory to hold the entire image
219 if(allocSections(reservedMem) == FALSE) {
220 dprintf((LOG, "Failed to allocate image memory for %s at %x, rc %d", szFileName, oh.ImageBase, errorState));
221 goto failure;
222 }
223
224 memmap = new Win32MemMap(this, realBaseAddress, imageSize);
225 if(memmap == NULL || !memmap->Init()) {
226 goto failure;
227 }
228 win32file = memmap->mapViewOfFile(0, 0, 2);
229
230 if(DosQueryPathInfo(szFileName, FIL_QUERYFULLNAME, szFullPath, sizeof(szFullPath)) == 0) {
231 setFullPath(szFullPath);
232 }
233
234 if(!(fh.Characteristics & IMAGE_FILE_EXECUTABLE_IMAGE)) {//not valid
235 dprintf((LOG, "Not a valid PE file!"));
236 WinMessageBox(HWND_DESKTOP, HWND_DESKTOP, szPEErrorMsg, szErrorTitle, 0, MB_OK | MB_ERROR | MB_MOVEABLE);
237 goto failure;
238 }
239 if(fh.Machine != IMAGE_FILE_MACHINE_I386) {
240 dprintf((LOG, "Doesn't run on x86 processors!"));
241 WinMessageBox(HWND_DESKTOP, HWND_DESKTOP, szCPUErrorMsg, szErrorTitle, 0, MB_OK | MB_ERROR | MB_MOVEABLE);
242 goto failure;
243 }
244 //IMAGE_FILE_SYSTEM == only drivers (device/file system/video etc)?
245 if(fh.Characteristics & IMAGE_FILE_SYSTEM) {
246 dprintf((LOG, "Can't convert system files"));
247 WinMessageBox(HWND_DESKTOP, HWND_DESKTOP, szExeErrorMsg, szErrorTitle, 0, MB_OK | MB_ERROR | MB_MOVEABLE);
248 goto failure;
249 }
250
251 if(fh.Characteristics & IMAGE_FILE_RELOCS_STRIPPED) {
252 dprintf((LOG, "No fixups, might not run!"));
253 }
254
255 dprintf((LOG, "PE file : %s", szFileName));
256 dprintf((LOG, "PE Optional header: "));
257 dprintf((LOG, "Preferred address : %d", oh.ImageBase ));
258 dprintf((LOG, "Base Of Code : %d", oh.BaseOfCode ));
259 dprintf((LOG, "CodeSize : %d", oh.SizeOfCode ));
260 dprintf((LOG, "Base Of Data : %d", oh.BaseOfData ));
261 dprintf((LOG, "Data Size (uninit): %d", oh.SizeOfUninitializedData ));
262 dprintf((LOG, "Data Size (init) : %d", oh.SizeOfInitializedData ));
263 dprintf((LOG, "Entry Point : %d", oh.AddressOfEntryPoint ));
264 dprintf((LOG, "Section Alignment : %d", oh.SectionAlignment ));
265 dprintf((LOG, "Stack Reserve size: %d", oh.SizeOfStackReserve ));
266 dprintf((LOG, "Stack Commit size : %d", oh.SizeOfStackCommit ));
267 dprintf((LOG, "SizeOfHeapReserve : %d", oh.SizeOfHeapReserve ));
268 dprintf((LOG, "SizeOfHeapCommit : %d", oh.SizeOfHeapCommit ));
269 dprintf((LOG, "FileAlignment : %d", oh.FileAlignment ));
270 dprintf((LOG, "Subsystem : %d", oh.Subsystem ));
271 dprintf((LOG, "Image Size : %d", oh.SizeOfImage ));
272 dprintf((LOG, "Header Size : %d", oh.SizeOfHeaders ));
273 dprintf((LOG, "MajorImageVersion : %d", oh.MajorImageVersion ));
274 dprintf((LOG, "MinorImageVersion : %d", oh.MinorImageVersion ));
275
276 //get header page
277 commitPage(realBaseAddress, FALSE);
278
279 nSections = NR_SECTIONS(win32file);
280 section = (Section *)malloc(nSections*sizeof(Section));
281 if(section == NULL) {
282 DebugInt3();
283 goto failure;
284 }
285 memset(section, 0, nSections*sizeof(Section));
286
287 if(!(dwFlags & FLAG_PELDR_LOADASDATAFILE))
288 {
289 imageSize = 0;
290 if ((psh = (PIMAGE_SECTION_HEADER)SECTIONHDROFF (win32file)) != NULL)
291 {
292 dprintf((LOG, "*************************PE SECTIONS START**************************" ));
293 for (i=0; i<nSections; i++)
294 {
295 dprintf((LOG, "Raw data size: %x", psh[i].SizeOfRawData ));
296 dprintf((LOG, "Virtual Address: %x", psh[i].VirtualAddress ));
297 dprintf((LOG, "Virtual Address Start:%x", psh[i].VirtualAddress+oh.ImageBase ));
298 dprintf((LOG, "Virtual Address End: %x", psh[i].VirtualAddress+oh.ImageBase+psh[i].Misc.VirtualSize ));
299 dprintf((LOG, "Virtual Size: %x", psh[i].Misc.VirtualSize ));
300 dprintf((LOG, "Pointer to raw data: %x", psh[i].PointerToRawData ));
301 dprintf((LOG, "Section flags: %x\n\n", psh[i].Characteristics ));
302
303 if(IsSectionType(win32file, &psh[i], IMAGE_DIRECTORY_ENTRY_BASERELOC))
304 {
305 dprintf((LOG, ".reloc" ));
306 addSection(SECTION_RELOC, psh[i].PointerToRawData,
307 psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
308 psh[i].Misc.VirtualSize, psh[i].Characteristics);
309 continue;
310 }
311 if(IsSectionType(win32file, &psh[i], IMAGE_DIRECTORY_ENTRY_EXPORT))
312 {
313 //SvL: Angus.exe has empty export section that's really an
314 // uninitialized data section
315 if(psh[i].SizeOfRawData) {
316 dprintf((LOG, ".edata" ));
317 addSection(SECTION_EXPORT, psh[i].PointerToRawData,
318 psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
319 psh[i].Misc.VirtualSize, psh[i].Characteristics);
320 continue;
321 }
322 }
323 if(IsSectionType(win32file, &psh[i], IMAGE_DIRECTORY_ENTRY_RESOURCE))
324 {
325 dprintf((LOG, ".rsrc" ));
326 addSection(SECTION_RESOURCE, psh[i].PointerToRawData,
327 psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
328 psh[i].Misc.VirtualSize, psh[i].Characteristics);
329 continue;
330 }
331 if(IsSectionType(win32file, &psh[i], IMAGE_DIRECTORY_ENTRY_TLS))
332 {
333 dprintf((LOG, "TLS section"));
334 tlsDir = (IMAGE_TLS_DIRECTORY *)ImageDirectoryOffset(win32file, IMAGE_DIRECTORY_ENTRY_TLS);
335 if(tlsDir) {
336 addSection(SECTION_TLS, psh[i].PointerToRawData,
337 psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
338 psh[i].Misc.VirtualSize, psh[i].Characteristics);
339 }
340 continue;
341 }
342 if(IsSectionType(win32file, &psh[i], IMAGE_DIRECTORY_ENTRY_DEBUG))
343 {
344 dprintf((LOG, ".rdebug" ));
345 addSection(SECTION_DEBUG, psh[i].PointerToRawData,
346 psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
347 psh[i].Misc.VirtualSize, psh[i].Characteristics);
348 continue;
349 }
350 if(IsSectionType(win32file, &psh[i], IMAGE_DIRECTORY_ENTRY_IMPORT))
351 {
352 int type = SECTION_IMPORT;
353
354 dprintf((LOG, "Import Data Section" ));
355 if(psh[i].Characteristics & IMAGE_SCN_CNT_CODE) {
356 dprintf((LOG, "Also Code Section"));
357 type |= SECTION_CODE;
358 }
359 addSection(type, psh[i].PointerToRawData,
360 psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
361 psh[i].Misc.VirtualSize, psh[i].Characteristics);
362 continue;
363 }
364
365 //KSO Sun 1998-08-09: Borland does not alway set the CODE flag for its "CODE" section
366 if(psh[i].Characteristics & IMAGE_SCN_CNT_CODE ||
367 (psh[i].Characteristics & IMAGE_SCN_MEM_EXECUTE &&
368 !(psh[i].Characteristics & (IMAGE_SCN_CNT_UNINITIALIZED_DATA | IMAGE_SCN_CNT_INITIALIZED_DATA))) //KSO: make sure its not marked as a datasection
369 )
370 {
371 dprintf((LOG, "Code Section"));
372 addSection(SECTION_CODE, psh[i].PointerToRawData,
373 psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
374 psh[i].Misc.VirtualSize, psh[i].Characteristics);
375 continue;
376 }
377 if(!(psh[i].Characteristics & IMAGE_SCN_MEM_WRITE)) { //read only data section
378 dprintf((LOG, "Read Only Data Section" ));
379 addSection(SECTION_READONLYDATA, psh[i].PointerToRawData,
380 psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
381 psh[i].Misc.VirtualSize, psh[i].Characteristics);
382 continue;
383 }
384 if(psh[i].Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA) {
385 dprintf((LOG, "Uninitialized Data Section" ));
386 addSection(SECTION_UNINITDATA, psh[i].PointerToRawData,
387 psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
388 psh[i].Misc.VirtualSize, psh[i].Characteristics);
389 continue;
390 }
391 if(psh[i].Characteristics & IMAGE_SCN_CNT_INITIALIZED_DATA) {
392 dprintf((LOG, "Initialized Data Section" ));
393 addSection(SECTION_INITDATA, psh[i].PointerToRawData,
394 psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
395 psh[i].Misc.VirtualSize, psh[i].Characteristics);
396 continue;
397 }
398 if(psh[i].Characteristics & (IMAGE_SCN_MEM_WRITE | IMAGE_SCN_MEM_READ)) {
399 dprintf((LOG, "Other Section, stored as read/write uninit data" ));
400 addSection(SECTION_UNINITDATA, psh[i].PointerToRawData,
401 psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
402 psh[i].Misc.VirtualSize, psh[i].Characteristics);
403 continue;
404 }
405 dprintf((LOG, "Unknown section" ));
406 goto failure;
407 }
408 }
409 }
410 else {
411 if(GetSectionHdrByImageDir(win32file, IMAGE_DIRECTORY_ENTRY_RESOURCE, &sh))
412 {
413 dprintf((LOG, "*************************PE SECTIONS START**************************" ));
414 dprintf((LOG, "Raw data size: %x", sh.SizeOfRawData ));
415 dprintf((LOG, "Virtual Address: %x", sh.VirtualAddress ));
416 dprintf((LOG, "Virtual Address Start:%x", sh.VirtualAddress+oh.ImageBase ));
417 dprintf((LOG, "Virtual Address End: %x", sh.VirtualAddress+oh.ImageBase+sh.Misc.VirtualSize ));
418 dprintf((LOG, "Virtual Size: %x", sh.Misc.VirtualSize ));
419 dprintf((LOG, "Pointer to raw data: %x", sh.PointerToRawData ));
420 dprintf((LOG, "Section flags: %x\n\n", sh.Characteristics ));
421 addSection(SECTION_RESOURCE, sh.PointerToRawData,
422 sh.SizeOfRawData, sh.VirtualAddress + oh.ImageBase,
423 sh.Misc.VirtualSize, sh.Characteristics);
424 }
425 }
426 dprintf((LOG, "*************************PE SECTIONS END **************************" ));
427
428 imageSize += imageVirtBase - oh.ImageBase;
429 dprintf((LOG, "Total size of Image %x", imageSize ));
430 dprintf((LOG, "imageVirtBase %x", imageVirtBase ));
431 dprintf((LOG, "imageVirtEnd %x", imageVirtEnd ));
432
433 //In case there are any gaps between sections, adjust size
434 if(imageSize != imageVirtEnd - oh.ImageBase)
435 {
436 dprintf((LOG, "imageSize != imageVirtEnd - oh.ImageBase!" ));
437 imageSize = imageVirtEnd - oh.ImageBase;
438 }
439 if(imageSize < oh.SizeOfImage) {
440 imageSize = oh.SizeOfImage;
441 }
442
443 dprintf((LOG, "OS/2 base address %x", realBaseAddress ));
444 if(oh.AddressOfEntryPoint) {
445 entryPoint = realBaseAddress + oh.AddressOfEntryPoint;
446 }
447 else {
448 dprintf((LOG, "EntryPoint == NULL" ));
449 entryPoint = NULL;
450 }
451
452 //set memory protection flags
453 if(setMemFlags() == FALSE) {
454 dprintf((LOG, "Failed to set memory protection" ));
455 goto failure;
456 }
457
458 if(realBaseAddress != oh.ImageBase && !(dwFlags & FLAG_PELDR_LOADASDATAFILE)) {
459 pFixups = (PIMAGE_BASE_RELOCATION)ImageDirectoryOffset(win32file, IMAGE_DIRECTORY_ENTRY_BASERELOC);
460 dwFixupSize = ImageDirectorySize(win32file, IMAGE_DIRECTORY_ENTRY_BASERELOC);
461 commitPage((ULONG)pFixups, FALSE);
462 }
463
464 if(!(dwFlags & FLAG_PELDR_LOADASDATAFILE))
465 {
466 if(tlsDir = (IMAGE_TLS_DIRECTORY *)ImageDirectoryOffset(win32file, IMAGE_DIRECTORY_ENTRY_TLS))
467 {
468 Section *sect;
469 BOOL fTLSFixups = FALSE;
470
471 sect = findSectionByAddr(tlsDir->StartAddressOfRawData);
472 //There might be fixups for the TLS structure, so search the sections
473 //by the OS/2 virtual address too
474 if(sect == NULL) {
475 sect = findSectionByOS2Addr(tlsDir->StartAddressOfRawData);
476 fTLSFixups = TRUE;
477 }
478
479 dprintf((LOG, "TLS Directory" ));
480 dprintf((LOG, "TLS Address of Index %x", tlsDir->AddressOfIndex ));
481 dprintf((LOG, "TLS Address of Callbacks %x", tlsDir->AddressOfCallBacks ));
482 dprintf((LOG, "TLS SizeOfZeroFill %x", tlsDir->SizeOfZeroFill ));
483 dprintf((LOG, "TLS Characteristics %x", tlsDir->Characteristics ));
484 if(sect == NULL) {
485 dprintf((LOG, "Couldn't find TLS section!!" ));
486 goto failure;
487 }
488 setTLSAddress((char *)sect->realvirtaddr);
489 setTLSInitSize(tlsDir->EndAddressOfRawData - tlsDir->StartAddressOfRawData);
490 setTLSTotalSize(tlsDir->EndAddressOfRawData - tlsDir->StartAddressOfRawData + tlsDir->SizeOfZeroFill);
491
492 fTLSFixups = FALSE;
493 sect = findSectionByAddr((ULONG)tlsDir->AddressOfIndex);
494 //There might be fixups for the TLS structure, so search the sections
495 //by the OS/2 virtual address too
496 if(sect == NULL) {
497 sect = findSectionByOS2Addr((ULONG)tlsDir->AddressOfIndex);
498 fTLSFixups = TRUE;
499 }
500 if(sect == NULL) {
501 dprintf((LOG, "Couldn't find TLS AddressOfIndex section!!" ));
502 goto failure;
503 }
504 if(fTLSFixups) {
505 setTLSIndexAddr((LPDWORD)tlsDir->AddressOfIndex); //no fixup required
506 }
507 else {//need to add a manual fixup
508 setTLSIndexAddr((LPDWORD)(sect->realvirtaddr + ((ULONG)tlsDir->AddressOfIndex - sect->virtaddr)));
509 }
510
511 if((ULONG)tlsDir->AddressOfCallBacks != 0)
512 {
513 fTLSFixups = FALSE;
514
515 sect = findSectionByAddr((ULONG)tlsDir->AddressOfCallBacks);
516 //There might be fixups for the TLS structure, so search the sections
517 //by the OS/2 virtual address too
518 if(sect == NULL) {
519 sect = findSectionByOS2Addr((ULONG)tlsDir->AddressOfIndex);
520 fTLSFixups = TRUE;
521 }
522 if(sect == NULL) {
523 dprintf((LOG, "Couldn't find TLS AddressOfCallBacks section!!" ));
524 goto failure;
525 }
526 if(fTLSFixups) {
527 setTLSCallBackAddr((PIMAGE_TLS_CALLBACK *)tlsDir->AddressOfCallBacks); //no fixup required
528 }
529 else {//need to add a manual fixup
530 setTLSCallBackAddr((PIMAGE_TLS_CALLBACK *)(sect->realvirtaddr + ((ULONG)tlsDir->AddressOfCallBacks - sect->virtaddr)));
531 }
532 //modify tls callback pointers for new image base address
533 int i = 0;
534 while(tlsCallBackAddr[i])
535 {
536 fTLSFixups = FALSE;
537
538 sect = findSectionByAddr((ULONG)tlsCallBackAddr[i]);
539 //There might be fixups for the TLS structure, so search the sections
540 //by the OS/2 virtual address too
541 if(sect == NULL) {
542 sect = findSectionByOS2Addr((ULONG)tlsCallBackAddr[i]);
543 fTLSFixups = TRUE;
544 }
545 if(sect == NULL) {
546 dprintf((LOG, "Couldn't find TLS callback section!!" ));
547 goto failure;
548 }
549 if(fTLSFixups) {
550 tlsCallBackAddr[i] = tlsCallBackAddr[i];
551 }
552 else tlsCallBackAddr[i] = (PIMAGE_TLS_CALLBACK)(realBaseAddress + ((ULONG)tlsCallBackAddr[i] - oh.ImageBase));
553 i++;
554 }
555 }
556 }
557
558#ifdef DEBUG
559 dprintf((LOG, "Image directories: "));
560 for (i = 0; i < IMAGE_NUMBEROF_DIRECTORY_ENTRIES; i++)
561 {
562 char *pszName;
563
564 if(oh.DataDirectory[i].VirtualAddress && oh.DataDirectory[i].Size) {
565 switch (i)
566 {
567 case IMAGE_DIRECTORY_ENTRY_EXPORT: pszName = "Export Directory (IMAGE_DIRECTORY_ENTRY_EXPORT)"; break;
568 case IMAGE_DIRECTORY_ENTRY_IMPORT: pszName = "Import Directory (IMAGE_DIRECTORY_ENTRY_IMPORT)"; break;
569 case IMAGE_DIRECTORY_ENTRY_RESOURCE: pszName = "Resource Directory (IMAGE_DIRECTORY_ENTRY_RESOURCE)"; break;
570 case IMAGE_DIRECTORY_ENTRY_EXCEPTION: pszName = "Exception Directory (IMAGE_DIRECTORY_ENTRY_EXCEPTION)"; break;
571 case IMAGE_DIRECTORY_ENTRY_SECURITY: pszName = "Security Directory (IMAGE_DIRECTORY_ENTRY_SECURITY)"; break;
572 case IMAGE_DIRECTORY_ENTRY_BASERELOC: pszName = "Base Relocation Table (IMAGE_DIRECTORY_ENTRY_BASERELOC)"; break;
573 case IMAGE_DIRECTORY_ENTRY_DEBUG: pszName = "Debug Directory (IMAGE_DIRECTORY_ENTRY_DEBUG)"; break;
574 case IMAGE_DIRECTORY_ENTRY_COPYRIGHT: pszName = "Description String (IMAGE_DIRECTORY_ENTRY_COPYRIGHT)"; break;
575 case IMAGE_DIRECTORY_ENTRY_GLOBALPTR: pszName = "Machine Value (MIPS GP) (IMAGE_DIRECTORY_ENTRY_GLOBALPTR)"; break;
576 case IMAGE_DIRECTORY_ENTRY_TLS: pszName = "TLS Directory (IMAGE_DIRECTORY_ENTRY_TLS)"; break;
577 case IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG: pszName = "Load Configuration Directory (IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG)"; break;
578 case IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT:pszName = "Bound Import Directory in headers (IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT)"; break;
579 case IMAGE_DIRECTORY_ENTRY_IAT: pszName = "Import Address Table (IMAGE_DIRECTORY_ENTRY_IAT)"; break;
580 default:
581 pszName = "unknown";
582 }
583 dprintf((LOG, "directory %s", pszName));
584 dprintf((LOG, " Address 0x%08x", oh.DataDirectory[i].VirtualAddress));
585 dprintf((LOG, " Size 0x%08x", oh.DataDirectory[i].Size));
586 }
587 }
588 dprintf((LOG, "\n\n"));
589#endif
590
591#ifdef COMMIT_ALL
592 for (i=0; i<nSections; i++) {
593 commitPage((ULONG)section[i].realvirtaddr, FALSE, COMPLETE_SECTION);
594 }
595#else
596 for (i=0; i<nSections; i++) {
597 switch(section[i].type)
598 {
599 case SECTION_IMPORT:
600 case SECTION_RELOC:
601 case SECTION_EXPORT:
602 commitPage((ULONG)section[i].realvirtaddr, FALSE, COMPLETE_SECTION);
603 break;
604 }
605 }
606#endif
607 if(processExports((char *)win32file) == FALSE) {
608 dprintf((LOG, "Failed to process exported apis" ));
609 goto failure;
610 }
611 }
612#ifdef COMMIT_ALL
613 else {
614 commitPage((ULONG)section[0].realvirtaddr, FALSE, COMPLETE_SECTION);
615 }
616#endif
617
618#ifndef COMMIT_ALL
619 if(entryPoint) {
620 //commit code at entrypoint, since we going to call it anyway
621 commitPage((ULONG)entryPoint, FALSE);
622 }
623#endif
624
625 //SvL: Use pointer to image header as module handle now. Some apps needs this
626 hinstance = (HINSTANCE)realBaseAddress;
627
628 //SvL: Set instance handle in process database structure
629 SetPDBInstance(hinstance);
630
631 //PH: get pResRootDir pointer correct first, since processImports may
632 // implicitly call functions depending on it.
633 if(oh.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress && oh.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].Size)
634 {
635 //get offset in resource object of directory entry
636 pResRootDir = (PIMAGE_RESOURCE_DIRECTORY)(oh.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress + realBaseAddress);
637 ulRVAResourceSection = oh.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress;
638 }
639
640 //Allocate TLS index for this module
641 //Must do this before dlls are loaded for this module. Some apps assume
642 //they get TLS index 0 for their main executable
643 tlsAlloc();
644 tlsAttachThread(); //setup TLS (main thread)
645
646 if(!(dwFlags & (FLAG_PELDR_LOADASDATAFILE | FLAG_PELDR_SKIPIMPORTS)))
647 {
648 if(processImports((char *)win32file) == FALSE) {
649 dprintf((LOG, "Failed to process imports!" ));
650 goto failure;
651 }
652 }
653
654 return(TRUE);
655
656failure:
657 if(memmap) {
658 delete memmap;
659 memmap = NULL;
660 }
661 if(hFile) {
662 OSLibDosClose(hFile);
663 hFile = 0;
664 }
665 errorState = ERROR_INTERNAL;
666 return FALSE;
667}
668//******************************************************************************
669// commitPage:
670// commits image page(s) when an access violation exception is received
671// (usually called from exception.cpp; also from other methods in this file)
672//
673// Parameters:
674// virtAddress - address of exception (rounded down to page boundary)
675// fWriteAccess - type of access violation (read or write)
676// fPageCmd - SINGLE_PAGE -> commit single page
677// SECTION_PAGES -> commit default nr of pages
678// COMPLETE_SECTION -> commit entire section
679//
680// Remarks:
681// DosEnterCritSec/DosExitCritSec is used to make sure the other threads in
682// the application can't touch the pages before they are loaded from disk and
683// fixups are applied.
684//
685// TODO:
686// SECTION_PAGES: - don't load pages starting at access violation address, but
687// a region surrounding it (e.g. -32k -> + 32k)
688// this will prevent many pagefaults when the app uses
689// pages with a lower addr.
690//
691//******************************************************************************
692
693#define DOSREAD_IDEAL_SIZE 61440
694static inline APIRET _Optlink fastDosRead(HFILE hFile,
695 PVOID pAddress,
696 ULONG ulSize,
697 PULONG pulBytesRead)
698{
699 /* we better break the DosRead into multiple calls */
700 PBYTE p = (PBYTE)pAddress;
701 ULONG ulReadBytes;
702 APIRET rc;
703
704 *pulBytesRead = ulSize;
705
706 do
707 {
708 rc = DosRead(hFile,
709 p,
710 min(DOSREAD_IDEAL_SIZE, ulSize),
711 &ulReadBytes);
712 if (rc != NO_ERROR)
713 {
714 /* in case of errors bail out */
715 *pulBytesRead = 0;
716 return rc;
717 }
718
719 ulSize -= ulReadBytes;
720 p += ulReadBytes;
721 }
722 while (ulSize > 0);
723
724 return NO_ERROR;
725}
726
727
728BOOL Win32PeLdrImage::commitPage(ULONG virtAddress, BOOL fWriteAccess, int fPageCmd)
729{
730 Section *section;
731 ULONG offset, size, sectionsize, protflags, fileoffset, range, attr;
732 ULONG ulNewPos, ulRead, orgVirtAddress = virtAddress;
733 APIRET rc;
734
735 //Round down to nearest page boundary
736 virtAddress = virtAddress & ~0xFFF;
737
738 section = findSectionByOS2Addr(virtAddress);
739 if(section == NULL) {
740 section = findSectionByOS2Addr(orgVirtAddress);
741 if(section) {
742 virtAddress = orgVirtAddress;
743 }
744 }
745 if(section == NULL) {
746 size = 4096;
747 sectionsize = 4096;
748 protflags = PAG_READ|PAG_WRITE; //readonly?
749 section = findPreviousSectionByOS2Addr(virtAddress);
750 if(section == NULL) {//access to header
751 offset = 0;
752 fileoffset = virtAddress - realBaseAddress;
753 }
754 else {
755 offset = virtAddress - (section->realvirtaddr + section->virtualsize);
756 fileoffset = section->rawoffset + section->rawsize + offset;
757 }
758 }
759 else {
760 protflags = section->pageflags;
761 offset = virtAddress - section->realvirtaddr;
762 sectionsize = section->virtualsize - offset;
763
764 if(offset > section->rawsize || section->type == SECTION_UNINITDATA) {
765 //unintialized data (set to 0)
766 size = 0;
767 fileoffset = -1;
768 }
769 else {
770 size = section->rawsize-offset;
771 fileoffset = section->rawoffset + offset;
772 }
773 if(fWriteAccess & !(section->pageflags & PAG_WRITE)) {
774 dprintf((LOG, "Win32PeLdrImage::commitPage: No write access to 0%x!", virtAddress));
775 return FALSE;
776 }
777 }
778 //Check range of pages with the same attributes starting at virtAddress
779 //(some pages might already have been loaded)
780 range = sectionsize;
781 rc = DosQueryMem((PVOID)virtAddress, &range, &attr);
782 if(rc) {
783 dprintf((LOG, "Win32PeLdrImage::commitPage: DosQueryMem for %x returned %d", virtAddress, rc));
784 return FALSE;
785 }
786 if(attr & PAG_COMMIT) {
787 dprintf((LOG, "Win32PeLdrImage::commitPage: Memory at 0x%x already committed!", virtAddress));
788 return FALSE;
789 }
790
791 if(fPageCmd == SINGLE_PAGE) {
792 size = min(size, PAGE_SIZE);
793 sectionsize = min(sectionsize, PAGE_SIZE);
794 }
795 else
796 if(fPageCmd == SECTION_PAGES) {
797 size = min(size, DEFAULT_NR_PAGES*PAGE_SIZE);
798 sectionsize = min(sectionsize, DEFAULT_NR_PAGES*PAGE_SIZE);
799 }
800 //else complete section
801
802 size = min(size, range);
803 sectionsize = min(sectionsize, range);
804
805 if(fileoffset != -1) {
806 rc = DosEnterCritSec();
807 if(rc) {
808 dprintf((LOG, "DosEnterCritSec failed with rc %d", rc));
809 goto fail;
810 }
811 rc = DosSetMem((PVOID)virtAddress, sectionsize, PAG_READ|PAG_WRITE|PAG_COMMIT);
812 if(rc) {
813 DosExitCritSec();
814 dprintf((LOG, "Win32PeLdrImage::commitPage: DosSetMem failed (%d)!", rc));
815 goto fail;
816 }
817
818 if(DosSetFilePtr(hFile, fileoffset, FILE_BEGIN, &ulNewPos) == -1) {
819 DosExitCritSec();
820 dprintf((LOG, "Win32PeLdrImage::commitPage: DosSetFilePtr failed for 0x%x!", fileoffset));
821 goto fail;
822 }
823
824 // 2001-05-31 PH
825 // ensure DosRead() does not have to read more
826 // than 65535 bytes, otherwise split into two requests!
827 rc = fastDosRead(hFile, (PVOID)virtAddress, size, &ulRead);
828 if(rc) {
829 DosExitCritSec();
830 dprintf((LOG, "Win32PeLdrImage::commitPage: DosRead failed for 0x%x %x %x %x (rc=%d)!", virtAddress, size, ulRead, fileoffset, rc));
831 goto fail;
832 }
833 if(ulRead != size) {
834 DosExitCritSec();
835 dprintf((LOG, "Win32PeLdrImage::commitPage: DosRead failed to read %x (%x) bytes at %x for 0x%x!", size, ulRead, fileoffset, virtAddress));
836 goto fail;
837 }
838 setFixups(virtAddress, sectionsize);
839
840 rc = DosSetMem((PVOID)virtAddress, sectionsize, protflags);
841 DosExitCritSec();
842 if(rc) {
843 dprintf((LOG, "Win32PeLdrImage::commitPage: DosSetMem failed (%d)!", rc));
844 goto fail;
845 }
846 }
847 else {
848 rc = DosEnterCritSec();
849 if(rc) {
850 dprintf((LOG, "DosEnterCritSec failed with rc %d", rc));
851 goto fail;
852 }
853
854 rc = DosSetMem((PVOID)virtAddress, sectionsize, PAG_READ|PAG_WRITE|PAG_COMMIT);
855 if(rc) {
856 DosExitCritSec();
857 dprintf((LOG, "Win32PeLdrImage::commitPage: DosSetMem failed (%d)!", rc));
858 goto fail;
859 }
860 setFixups(virtAddress, sectionsize);
861
862 rc = DosSetMem((PVOID)virtAddress, sectionsize, protflags);
863 DosExitCritSec();
864 if(rc) {
865 dprintf((LOG, "Win32PeLdrImage::commitPage: DosSetMem failed (%d)!", rc));
866 goto fail;
867 }
868 }
869 return TRUE;
870
871fail:
872 return FALSE;
873}
874//******************************************************************************
875//******************************************************************************
876void Win32PeLdrImage::addSection(ULONG type, ULONG rawoffset, ULONG rawsize, ULONG virtaddress, ULONG virtsize, ULONG flags)
877{
878 virtsize = max(rawsize, virtsize);
879
880 section[nrsections].rawoffset = rawoffset;
881 section[nrsections].type = type;
882 section[nrsections].rawsize = rawsize;
883 section[nrsections].virtaddr = virtaddress;
884 section[nrsections].flags = flags;
885
886 virtsize = ((virtsize - 1) & ~0xFFF) + PAGE_SIZE;
887 imageSize += virtsize;
888 section[nrsections].virtualsize = virtsize;
889
890 if(virtaddress < imageVirtBase)
891 imageVirtBase = virtaddress;
892 if(virtaddress + virtsize > imageVirtEnd)
893 imageVirtEnd = virtaddress + virtsize;
894
895 nrsections++;
896}
897//******************************************************************************
898//******************************************************************************
899BOOL Win32PeLdrImage::allocSections(ULONG reservedMem)
900{
901 APIRET rc;
902 ULONG baseAddress;
903
904 realBaseAddress = 0;
905
906 //Allocated in by pe.exe
907 if(reservedMem && reservedMem == oh.ImageBase) {
908 realBaseAddress = oh.ImageBase;
909 return TRUE;
910 }
911
912 //SvL: We don't care where the image is loaded for resource lookup
913 if(fh.Characteristics & IMAGE_FILE_RELOCS_STRIPPED && !(dwFlags & FLAG_PELDR_LOADASDATAFILE)) {
914 return allocFixedMem(reservedMem);
915 }
916 rc = DosAllocMem((PPVOID)&baseAddress, imageSize, PAG_READ | PAG_WRITE | flAllocMem);
917 if(rc) {
918 dprintf((LOG, "Win32PeLdrImage::allocSections, DosAllocMem returned %d", rc));
919 errorState = rc;
920 return(FALSE);
921 }
922 realBaseAddress = baseAddress;
923 return(TRUE);
924}
925//******************************************************************************
926//******************************************************************************
927Section *Win32PeLdrImage::findSection(ULONG type)
928{
929 for(int i=0;i<nrsections;i++) {
930 if(section[i].type == type) {
931 return &section[i];
932 }
933 }
934 return NULL;
935}
936//******************************************************************************
937//******************************************************************************
938Section *Win32PeLdrImage::findSectionByAddr(ULONG addr)
939{
940 for(int i=0;i<nrsections;i++) {
941 if(section[i].virtaddr <= addr && section[i].virtaddr + section[i].virtualsize > addr) {
942 return &section[i];
943 }
944 }
945 return NULL;
946}
947//******************************************************************************
948//******************************************************************************
949Section *Win32PeLdrImage::findSectionByOS2Addr(ULONG addr)
950{
951 for(int i=0;i<nrsections;i++) {
952 if(section[i].realvirtaddr <= addr && section[i].realvirtaddr + section[i].virtualsize > addr) {
953 return &section[i];
954 }
955 }
956 return NULL;
957}
958//******************************************************************************
959//******************************************************************************
960Section *Win32PeLdrImage::findPreviousSectionByOS2Addr(ULONG addr)
961{
962 ULONG lowestAddr = 0xffffffff;
963 ULONG index = -1;
964
965 for(int i=0;i<nrsections;i++) {
966 if(section[i].realvirtaddr > addr) {
967 if(section[i].realvirtaddr < lowestAddr) {
968 lowestAddr = section[i].realvirtaddr;
969 index = i;
970 }
971 }
972 }
973 if(index == -1)
974 return NULL;
975
976 return &section[index];
977}
978//******************************************************************************
979#define FALLOC_SIZE (1024*1024)
980//NOTE: Needs testing (while loop)
981//TODO: Free unused (parts of) reservedMem
982//******************************************************************************
983BOOL Win32PeLdrImage::allocFixedMem(ULONG reservedMem)
984{
985 ULONG address = 0;
986 ULONG *memallocs;
987 ULONG alloccnt = 0;
988 ULONG diff, i, baseAddress;
989 APIRET rc;
990 BOOL allocFlags = flAllocMem;
991
992 //Reserve enough space to store 4096 pointers to 1MB memory chunks
993 memallocs = (ULONG *)malloc(4096*sizeof(ULONG *));
994 if(memallocs == NULL) {
995 dprintf((LOG, "allocFixedMem: MALLOC FAILED for memallocs" ));
996 return FALSE;
997 }
998
999 if(oh.ImageBase < 512*1024*1024) {
1000 allocFlags = 0;
1001 }
1002 while(TRUE) {
1003 rc = DosAllocMem((PPVOID)&address, FALLOC_SIZE, PAG_READ | allocFlags);
1004 if(rc) break;
1005
1006 dprintf((LOG, "DosAllocMem returned %x", address ));
1007 if(address + FALLOC_SIZE >= oh.ImageBase) {
1008 if(address > oh.ImageBase) {//we've passed it!
1009 DosFreeMem((PVOID)address);
1010 break;
1011 }
1012 //found the right address
1013 DosFreeMem((PVOID)address);
1014
1015 diff = oh.ImageBase - address;
1016 if(diff) {
1017 rc = DosAllocMem((PPVOID)&address, diff, PAG_READ | allocFlags);
1018 if(rc) break;
1019 }
1020 rc = DosAllocMem((PPVOID)&baseAddress, imageSize, PAG_READ | PAG_WRITE | allocFlags);
1021 if(rc) break;
1022
1023 if(diff) DosFreeMem((PVOID)address);
1024
1025 realBaseAddress = baseAddress;
1026 break;
1027 }
1028 memallocs[alloccnt++] = address;
1029 }
1030 for(i=0;i<alloccnt;i++) {
1031 DosFreeMem((PVOID)memallocs[i]);
1032 }
1033 free(memallocs);
1034
1035 if(realBaseAddress == 0) //Let me guess.. MS Office app?
1036 return(FALSE);
1037
1038 return(TRUE);
1039}
1040//******************************************************************************
1041//******************************************************************************
1042BOOL Win32PeLdrImage::setMemFlags()
1043{
1044 int i;
1045 WINIMAGE_LOOKUP *imgLookup;
1046
1047 imgLookup = WINIMAGE_LOOKUPADDR(realBaseAddress);
1048 imgLookup->magic1 = MAGIC_WINIMAGE;
1049 imgLookup->image = this;
1050 imgLookup->magic2 = MAGIC_WINIMAGE;
1051
1052 // Process all the image sections
1053 for(i=0;i<nrsections;i++) {
1054 section[i].realvirtaddr = realBaseAddress + (section[i].virtaddr - oh.ImageBase);
1055 }
1056
1057 for(i=0;i<nrsections;i++) {
1058 switch(section[i].type)
1059 {
1060 case SECTION_CODE:
1061 case (SECTION_CODE | SECTION_IMPORT):
1062 section[i].pageflags = PAG_EXECUTE | PAG_READ;
1063 if(section[i].flags & IMAGE_SCN_MEM_WRITE)
1064 section[i].pageflags |= PAG_WRITE;
1065 break;
1066 case SECTION_INITDATA:
1067 case SECTION_UNINITDATA:
1068 case SECTION_IMPORT:
1069 case SECTION_TLS:
1070 section[i].pageflags = PAG_WRITE | PAG_READ;
1071 break;
1072
1073 case SECTION_RESOURCE:
1074 //TODO: GDI32 changes some bitmap structures to avoid problems in Open32
1075 // -> causes crashes if resource section is readonly
1076 // -> make it readonly again when gdi32 has been rewritten
1077 section[i].pageflags = PAG_WRITE | PAG_READ;
1078 break;
1079
1080 case SECTION_READONLYDATA:
1081 case SECTION_EXPORT:
1082 default:
1083 section[i].pageflags = PAG_READ;
1084 break;
1085 }
1086 if(section[i].flags & (IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_CNT_UNINITIALIZED_DATA)) {
1087 //SvL: sometimes i.e. import/export sections also contain data
1088 // must make them read/write
1089 section[i].pageflags = PAG_WRITE;
1090 }
1091 }
1092 return(TRUE);
1093}
1094//******************************************************************************
1095//******************************************************************************
1096BOOL Win32PeLdrImage::setFixups(ULONG virtAddress, ULONG size)
1097{
1098 int i, j;
1099 char *page;
1100 ULONG count, newpage;
1101 Section *section;
1102 PIMAGE_BASE_RELOCATION prel = pFixups;
1103
1104 if(realBaseAddress == oh.ImageBase || fh.Characteristics & IMAGE_FILE_RELOCS_STRIPPED) {
1105 return(TRUE);
1106 }
1107
1108 virtAddress -= realBaseAddress;
1109 //round size to next page boundary
1110 size = (size-1) & ~0xFFF;
1111 size += PAGE_SIZE;
1112
1113 if(prel) {
1114 j = 1;
1115 while(((ULONG)prel < (ULONG)pFixups+dwFixupSize) &&
1116 prel->VirtualAddress && prel->VirtualAddress < virtAddress)
1117 {
1118 prel = (PIMAGE_BASE_RELOCATION)((char*)prel + prel->SizeOfBlock);
1119 }
1120 while(((ULONG)prel < (ULONG)pFixups+dwFixupSize) &&
1121 prel->VirtualAddress && prel->VirtualAddress < virtAddress + size)
1122 {
1123 page = (char *)((char *)prel + (ULONG)prel->VirtualAddress);
1124 count = (prel->SizeOfBlock - 8)/2;
1125 j++;
1126 for(i=0;i<count;i++) {
1127 int type = prel->TypeOffset[i] >> 12;
1128 int offset = prel->TypeOffset[i] & 0xFFF;
1129 int fixupsize = 0;
1130
1131 switch(type)
1132 {
1133 case IMAGE_REL_BASED_HIGHLOW:
1134 fixupsize = 4;
1135 break;
1136 case IMAGE_REL_BASED_HIGH:
1137 case IMAGE_REL_BASED_LOW:
1138 fixupsize = 2;
1139 break;
1140 }
1141 //If the fixup crosses the final page boundary,
1142 //then we have to load another page
1143 if(prel->VirtualAddress + offset + fixupsize > virtAddress + size)
1144 {
1145 newpage = realBaseAddress + prel->VirtualAddress + offset + fixupsize;
1146 newpage &= ~0xFFF;
1147
1148 section = findSectionByOS2Addr(newpage);
1149 if(section == NULL) {
1150 //should never happen
1151 dprintf((LOG, "::setFixups -> section == NULL!!"));
1152 return FALSE;
1153 }
1154 //SvL: Read page from disk
1155 commitPage(newpage, FALSE, SINGLE_PAGE);
1156
1157 //SvL: Enable write access (TODO: may need to prevent other threads from being active)
1158 DosSetMem((PVOID)newpage, PAGE_SIZE, PAG_READ|PAG_WRITE);
1159 }
1160
1161 switch(type)
1162 {
1163 case IMAGE_REL_BASED_ABSOLUTE:
1164 break; //skip
1165 case IMAGE_REL_BASED_HIGHLOW:
1166 AddOff32Fixup(prel->VirtualAddress + offset);
1167 break;
1168 case IMAGE_REL_BASED_HIGH:
1169 AddOff16Fixup(prel->VirtualAddress + offset, TRUE);
1170 break;
1171 case IMAGE_REL_BASED_LOW:
1172 AddOff16Fixup(prel->VirtualAddress + offset, FALSE);
1173 break;
1174 case IMAGE_REL_BASED_HIGHADJ:
1175 case IMAGE_REL_BASED_MIPS_JMPADDR:
1176 default:
1177 break;
1178 }
1179 if(prel->VirtualAddress + offset + fixupsize > virtAddress + size)
1180 {
1181 //SvL: Restore original page protection flags (TODO: may need to prevent other threads from being active)
1182 DosSetMem((PVOID)newpage, PAGE_SIZE, section->pageflags);
1183 }
1184 }
1185 prel = (PIMAGE_BASE_RELOCATION)((char*)prel + prel->SizeOfBlock);
1186 }//while
1187 }
1188 else {
1189 dprintf((LOG, "Win32PeLdrImage::setFixups, no fixups at %x, %d", virtAddress, size));
1190 return(FALSE);
1191 }
1192 return(TRUE);
1193}
1194//******************************************************************************
1195//******************************************************************************
1196BOOL Win32PeLdrImage::setFixups(PIMAGE_BASE_RELOCATION prel)
1197{
1198 int i, j;
1199 char *page;
1200 ULONG count;
1201
1202 if(fh.Characteristics & IMAGE_FILE_RELOCS_STRIPPED) {
1203 return(TRUE);
1204 }
1205
1206 if(prel) {
1207 j = 1;
1208 while(prel->VirtualAddress) {
1209 page = (char *)((char *)prel + (ULONG)prel->VirtualAddress);
1210 count = (prel->SizeOfBlock - 8)/2;
1211 dprintf((LOG, "Page %d Address %x Count %d", j, prel->VirtualAddress, count ));
1212 j++;
1213 for(i=0;i<count;i++) {
1214 int type = prel->TypeOffset[i] >> 12;
1215 int offset = prel->TypeOffset[i] & 0xFFF;
1216 switch(type) {
1217 case IMAGE_REL_BASED_ABSOLUTE:
1218//// dprintf((LOG, "absolute fixup; unused" ));
1219 break; //skip
1220 case IMAGE_REL_BASED_HIGHLOW:
1221//// dprintf((LOG, "address ", offset << " type ", type ));
1222 AddOff32Fixup(prel->VirtualAddress + offset);
1223 break;
1224 case IMAGE_REL_BASED_HIGH:
1225 AddOff16Fixup(prel->VirtualAddress + offset, TRUE);
1226 break;
1227 case IMAGE_REL_BASED_LOW:
1228 AddOff16Fixup(prel->VirtualAddress + offset, FALSE);
1229 break;
1230 case IMAGE_REL_BASED_HIGHADJ:
1231 case IMAGE_REL_BASED_MIPS_JMPADDR:
1232 default:
1233 dprintf((LOG, "Unknown/unsupported fixup type!" ));
1234 break;
1235 }
1236 }
1237 prel = (PIMAGE_BASE_RELOCATION)((char*)prel + prel->SizeOfBlock);
1238 }//while
1239 }
1240 else {
1241 dprintf((LOG, "No internal fixups found!" ));
1242 errorState = ERROR_INTERNAL;
1243 return(FALSE);
1244 }
1245 return(TRUE);
1246}
1247//******************************************************************************
1248//******************************************************************************
1249void Win32PeLdrImage::AddOff32Fixup(ULONG fixupaddr)
1250{
1251 ULONG orgaddr;
1252 ULONG *fixup;
1253
1254 fixup = (ULONG *)(fixupaddr + realBaseAddress);
1255 orgaddr = *fixup;
1256// dprintf((LOG, "AddOff32Fixup 0x%x org 0x%x -> new 0x%x", fixup, orgaddr, realBaseAddress + (*fixup - oh.ImageBase)));
1257 *fixup = realBaseAddress + (*fixup - oh.ImageBase);
1258}
1259//******************************************************************************
1260//******************************************************************************
1261void Win32PeLdrImage::AddOff16Fixup(ULONG fixupaddr, BOOL fHighFixup)
1262{
1263 ULONG orgaddr;
1264 USHORT *fixup;
1265
1266 fixup = (USHORT *)(fixupaddr + realBaseAddress);
1267 orgaddr = *fixup;
1268 if(fHighFixup) {
1269 *fixup += (USHORT)((realBaseAddress - oh.ImageBase) >> 16);
1270// dprintf((LOG, "AddOff16FixupH 0x%x org 0x%x -> new 0x%x", fixup, orgaddr, *fixup));
1271 }
1272 else {
1273 *fixup += (USHORT)((realBaseAddress - oh.ImageBase) & 0xFFFF);
1274// dprintf((LOG, "AddOff16FixupL 0x%x org 0x%x -> new 0x%x", fixup, orgaddr, *fixup));
1275 }
1276}
1277//******************************************************************************
1278//******************************************************************************
1279void Win32PeLdrImage::StoreImportByOrd(Win32ImageBase *WinImage, ULONG ordinal, ULONG impaddr)
1280{
1281 ULONG *import;
1282 ULONG apiaddr;
1283
1284 import = (ULONG *)impaddr;
1285 apiaddr = WinImage->getApi(ordinal);
1286 if(apiaddr == 0)
1287 {
1288 dprintf((LOG, "KERNEL32:Win32PeLdrImage - %s.%u not found\n",
1289 WinImage->getModuleName(),
1290 ordinal));
1291
1292 dprintf((LOG, "--->>> NOT FOUND!" ));
1293 *import = (ULONG)MissingApi;
1294 }
1295 else *import = apiaddr;
1296}
1297//******************************************************************************
1298//******************************************************************************
1299void Win32PeLdrImage::StoreImportByName(Win32ImageBase *WinImage, char *impname, ULONG impaddr)
1300{
1301 ULONG *import;
1302 ULONG apiaddr;
1303
1304 import = (ULONG *)impaddr;
1305 apiaddr = WinImage->getApi(impname);
1306 if(apiaddr == 0)
1307 {
1308 dprintf((LOG, "KERNEL32:Win32PeLdrImage - %s.%s not found\n",
1309 WinImage->getModuleName(),
1310 impname));
1311
1312 dprintf((LOG, "--->>> NOT FOUND!" ));
1313 *import = (ULONG)MissingApi;
1314 }
1315 else *import = apiaddr;
1316}
1317//******************************************************************************
1318//******************************************************************************
1319BOOL Win32PeLdrImage::processExports(char *win32file)
1320{
1321 IMAGE_SECTION_HEADER sh;
1322 PIMAGE_EXPORT_DIRECTORY ped;
1323 ULONG *ptrNames, *ptrAddress;
1324 USHORT *ptrOrd;
1325 BOOL fForwarder;
1326 int i;
1327
1328 /* get section header and pointer to data directory for .edata section */
1329 if((ped = (PIMAGE_EXPORT_DIRECTORY)ImageDirectoryOffset
1330 (win32file, IMAGE_DIRECTORY_ENTRY_EXPORT)) != NULL &&
1331 GetSectionHdrByImageDir(win32file, IMAGE_DIRECTORY_ENTRY_EXPORT, &sh) )
1332 {
1333
1334 dprintf((LOG, "Exported Functions: " ));
1335 ptrOrd = (USHORT *)((ULONG)ped->AddressOfNameOrdinals +
1336 (ULONG)win32file);
1337 ptrNames = (ULONG *)((ULONG)ped->AddressOfNames +
1338 (ULONG)win32file);
1339 ptrAddress = (ULONG *)((ULONG)ped->AddressOfFunctions +
1340 (ULONG)win32file);
1341 nrOrdExports = ped->NumberOfFunctions;
1342 nrNameExports = ped->NumberOfNames;
1343
1344 int ord, RVAExport;
1345 char *name;
1346 for(i=0;i<ped->NumberOfNames;i++)
1347 {
1348 fForwarder = FALSE;
1349 ord = ptrOrd[i] + ped->Base;
1350 name = (char *)((ULONG)ptrNames[i] + (ULONG)win32file);
1351 RVAExport = ptrAddress[ptrOrd[i]];
1352
1353 /* forwarder? ulRVA within export directory. */
1354 if(RVAExport > oh.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress &&
1355 RVAExport < oh.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress
1356 + oh.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size)
1357 {
1358 fForwarder = AddForwarder(oh.ImageBase + RVAExport, name, ord);
1359 }
1360
1361 if(!fForwarder)
1362 {
1363 //points to code (virtual address relative to oh.ImageBase
1364 AddNameExport(oh.ImageBase + RVAExport, name, ord);
1365 dprintf((LOG, "address 0x%x %s @%d (0x%08x)", RVAExport, name, ord, realBaseAddress + RVAExport));
1366 }
1367 }
1368
1369 for(i=0;i<max(ped->NumberOfNames,ped->NumberOfFunctions);i++)
1370 {
1371 fForwarder = FALSE;
1372 ord = ped->Base + i; //Correct??
1373 RVAExport = ptrAddress[i];
1374 /* forwarder? ulRVA within export directory. */
1375 if(RVAExport > oh.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress &&
1376 RVAExport < oh.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress
1377 + oh.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size)
1378 {
1379 fForwarder = AddForwarder(oh.ImageBase + RVAExport, NULL, ord);
1380 }
1381
1382 if(!fForwarder && RVAExport)
1383 {
1384 //points to code (virtual address relative to oh.ImageBase
1385 dprintf((LOG, "ord %d at 0x%08x (0x%08x)", ord, RVAExport, realBaseAddress + RVAExport));
1386 AddOrdExport(oh.ImageBase + RVAExport, ord);
1387 }
1388 }
1389 }
1390
1391 return(TRUE);
1392}
1393//******************************************************************************
1394//******************************************************************************
1395void Win32PeLdrImage::AddNameExport(ULONG virtaddr, char *apiname, ULONG ordinal, BOOL fAbsoluteAddress)
1396{
1397 ULONG nsize;
1398 int iApiNameLength = strlen(apiname);
1399
1400 if(nameexports == NULL)
1401 {
1402 nameExportSize= 4096;
1403 nameexports = (NameExport *)malloc(nameExportSize);
1404 curnameexport = nameexports;
1405 }
1406
1407 nsize = (ULONG)curnameexport - (ULONG)nameexports;
1408 if(nsize + sizeof(NameExport) + iApiNameLength > nameExportSize)
1409 {
1410 nameExportSize += 4096;
1411 char *tmp = (char *)nameexports;
1412 nameexports = (NameExport *)malloc(nameExportSize);
1413 memcpy(nameexports, tmp, nsize);
1414 curnameexport = (NameExport *)((ULONG)nameexports + nsize);
1415 free(tmp);
1416 }
1417
1418 if(fAbsoluteAddress) //forwarders use absolute address
1419 curnameexport->virtaddr = virtaddr;
1420 else
1421 curnameexport->virtaddr = realBaseAddress + (virtaddr - oh.ImageBase);
1422
1423 curnameexport->ordinal = ordinal;
1424 *(ULONG *)curnameexport->name = 0;
1425 strcpy(curnameexport->name, apiname);
1426
1427 curnameexport->nlength = iApiNameLength + 1;
1428 if(curnameexport->nlength < sizeof(curnameexport->name))
1429 curnameexport->nlength = sizeof(curnameexport->name);
1430
1431 curnameexport = (NameExport *)((ULONG)curnameexport->name + curnameexport->nlength);
1432}
1433//******************************************************************************
1434//******************************************************************************
1435void Win32PeLdrImage::AddOrdExport(ULONG virtaddr,
1436 ULONG ordinal,
1437 BOOL fAbsoluteAddress)
1438{
1439 if(ordexports == NULL)
1440 {
1441 ordexports = (OrdExport *)malloc(nrOrdExports * sizeof(OrdExport));
1442 curordexport = ordexports;
1443 }
1444
1445 if(fAbsoluteAddress) //forwarders use absolute address
1446 curordexport->virtaddr = virtaddr;
1447 else
1448 curordexport->virtaddr = realBaseAddress + (virtaddr - oh.ImageBase);
1449
1450 curordexport->ordinal = ordinal;
1451 curordexport++;
1452}
1453//******************************************************************************
1454//******************************************************************************
1455BOOL Win32PeLdrImage::AddForwarder(ULONG virtaddr,
1456 char *apiname,
1457 ULONG ordinal)
1458{
1459 char *forward = (char *)(realBaseAddress + (virtaddr - oh.ImageBase));
1460 char *forwarddll, *forwardapi, *forwardapi0;
1461 Win32DllBase *WinDll;
1462 DWORD exportaddr;
1463 int forwardord;
1464 int iForwardApiLength; /* save strlen result */
1465
1466// 2001-06-01 PH
1467// we do exactly know which character we replace: the "." is zeroed
1468// so we can cheaply restore the name at the end of the method.
1469// forwarddll = strdup(forward);
1470// if(forwarddll == NULL)
1471// {
1472// return FALSE;
1473// }
1474 forwarddll = forward;
1475
1476 forwardapi = strchr(forwarddll, '.');
1477 if(forwardapi == NULL)
1478 {
1479 goto fail;
1480 }
1481 *forwardapi0 = 0;
1482 forwardapi=forwardapi0++;
1483 iForwardApiLength = strlen(forwardapi);
1484
1485 if(strlen(forwarddll) == 0 || iForwardApiLength == 0)
1486 {
1487 goto fail;
1488 }
1489
1490 WinDll = Win32DllBase::findModule(forwarddll);
1491 if(WinDll == NULL)
1492 {
1493 WinDll = loadDll(forwarddll);
1494 if(WinDll == NULL)
1495 {
1496 dprintf((LOG, "ERROR: couldn't find forwarder %s.%s", forwarddll, forwardapi));
1497 goto fail;
1498 }
1499 }
1500
1501 //check if name or ordinal forwarder
1502 if(*forwardapi >= '0' && *forwardapi <= '9')
1503 {
1504 forwardord = atoi(forwardapi);
1505 }
1506 else
1507 forwardord = 0;
1508
1509 if(forwardord != 0 || (iForwardApiLength == 1 && *forwardapi == '0'))
1510 exportaddr = WinDll->getApi(forwardord);
1511 else
1512 exportaddr = WinDll->getApi(forwardapi);
1513
1514 if(apiname)
1515 {
1516 dprintf((LOG, "address 0x%x %s @%d (0x%08x) forwarder %s.%s", virtaddr - oh.ImageBase, apiname, ordinal, virtaddr, forwarddll, forwardapi));
1517 AddNameExport(exportaddr, apiname, ordinal, TRUE);
1518 }
1519 else
1520 {
1521 dprintf((LOG, "address 0x%x @%d (0x%08x) forwarder %s.%s", virtaddr - oh.ImageBase, ordinal, virtaddr, forwarddll, forwardapi));
1522 AddOrdExport(exportaddr, ordinal, TRUE);
1523 }
1524
1525// free(forwarddll);
1526 *forwardapi0 = '.';
1527 return TRUE;
1528
1529 fail:
1530// free(forwarddll);
1531 *forwardapi0 = '.';
1532 return FALSE;
1533}
1534//******************************************************************************
1535//******************************************************************************
1536Win32DllBase *Win32PeLdrImage::loadDll(char *pszCurModule)
1537{
1538 Win32DllBase *WinDll = NULL;
1539 char modname[CCHMAXPATH];
1540
1541 strcpy(modname, pszCurModule);
1542
1543 //rename dll if necessary (i.e. OLE32 -> OLE32OS2)
1544 Win32DllBase::renameDll(modname);
1545
1546 char szModName2[CCHMAXPATH];
1547 strcpy(szModName2, modname);
1548 if (!Win32ImageBase::findDll(szModName2, modname, sizeof(modname)))
1549 {
1550 dprintf((LOG, "Module %s not found!", modname));
1551 sprintf(szErrorModule, "%s", modname);
1552 errorState = 2;
1553 return NULL;
1554 }
1555
1556 if(isPEImage(modname, NULL) != ERROR_SUCCESS_W)
1557 {//LX image, so let OS/2 do all the work for us
1558 APIRET rc;
1559 char szModuleFailure[CCHMAXPATH] = "";
1560 ULONG hInstanceNewDll;
1561 Win32LxDll *lxdll;
1562
1563 char *dot = strchr(modname, '.');
1564 if(dot == NULL) {
1565 strcat(modname, DLL_EXTENSION);
1566 }
1567 rc = DosLoadModule(szModuleFailure, sizeof(szModuleFailure), modname, (HMODULE *)&hInstanceNewDll);
1568 if(rc) {
1569 dprintf((LOG, "DosLoadModule returned %X for %s", rc, szModuleFailure));
1570 sprintf(szErrorModule, "%s", szModuleFailure);
1571 errorState = rc;
1572 return NULL;
1573 }
1574 lxdll = Win32LxDll::findModuleByOS2Handle(hInstanceNewDll);
1575 if(lxdll == NULL) {//shouldn't happen!
1576 dprintf((LOG, "Just loaded the dll, but can't find it anywhere?!!?"));
1577 errorState = ERROR_INTERNAL;
1578 return NULL;
1579 }
1580 lxdll->setDllHandleOS2(hInstanceNewDll);
1581 if(lxdll->AddRef() == -1) {//-1 -> load failed (attachProcess)
1582 dprintf((LOG, "Dll %s refused to be loaded; aborting", modname));
1583 delete lxdll;
1584 errorState = ERROR_INTERNAL;
1585 return NULL;
1586 }
1587 WinDll = (Win32DllBase*)lxdll;
1588 }
1589 else {
1590 Win32PeLdrDll *pedll;
1591
1592 pedll = new Win32PeLdrDll(modname, this);
1593 if(pedll == NULL) {
1594 dprintf((LOG, "pedll: Error allocating memory" ));
1595 WinMessageBox(HWND_DESKTOP, HWND_DESKTOP, szMemErrorMsg, szErrorTitle, 0, MB_OK | MB_ERROR | MB_MOVEABLE);
1596 errorState = ERROR_INTERNAL;
1597 return NULL;
1598 }
1599 dprintf((LOG, "**********************************************************************" ));
1600 dprintf((LOG, "********************** Loading Module *********************" ));
1601 dprintf((LOG, "**********************************************************************" ));
1602 if(pedll->init(0) == FALSE) {
1603 dprintf((LOG, "Internal WinDll error ", pedll->getError() ));
1604 delete pedll;
1605 return NULL;
1606 }
1607#ifdef DEBUG
1608 pedll->AddRef(getModuleName());
1609#else
1610 pedll->AddRef();
1611#endif
1612 if(pedll->attachProcess() == FALSE) {
1613 dprintf((LOG, "attachProcess failed!" ));
1614 delete pedll;
1615 errorState = ERROR_INTERNAL;
1616 return NULL;
1617 }
1618 WinDll = (Win32DllBase*)pedll;
1619 }
1620
1621 dprintf((LOG, "**********************************************************************" ));
1622 dprintf((LOG, "********************** Finished Loading Module %s ", modname ));
1623 dprintf((LOG, "**********************************************************************" ));
1624
1625
1626 return WinDll;
1627}
1628//******************************************************************************
1629/** All initial processing of imports is done here
1630 * Should now detect most Borland styled files including the GifCon32.exe and
1631 * loader32 from SoftIce. (Stupid Borland!!!)
1632 *
1633 * knut [Jul 22 1998 2:44am]
1634 **/
1635//******************************************************************************
1636BOOL Win32PeLdrImage::processImports(char *win32file)
1637{
1638 PIMAGE_IMPORT_DESCRIPTOR pID;
1639 IMAGE_SECTION_HEADER shID;
1640 IMAGE_SECTION_HEADER shExtra = {0};
1641 PIMAGE_OPTIONAL_HEADER pOH;
1642 int i,j, nrPages;
1643 BOOL fBorland = 0;
1644 int cModules;
1645 char *pszModules;
1646 char *pszCurModule;
1647 char *pszTmp;
1648 ULONG *pulImport;
1649 ULONG ulCurFixup;
1650 int Size;
1651 Win32DllBase *WinDll;
1652 Win32ImageBase *WinImage = NULL;
1653 Section *section;
1654
1655/* "algorithm:"
1656 * 1) get module names and store them
1657 * a) check dwRVAModuleName is within .idata seg - if not find section
1658 * 2) iterate thru functions of each module
1659 * a) check OriginalFirstThunk is not 0 and that it points to a RVA.
1660 * b) if not a) borland-styled PE-file - ARG!!!
1661 * check FirstThunk
1662 * c) check OriginalFirstThunk/FirstThunk ok RVAs and find right section
1663 * d) store ordinal/name import
1664 * 3) finished
1665 */
1666
1667 /* 1) get module names */
1668 pID = (PIMAGE_IMPORT_DESCRIPTOR)ImageDirectoryOffset(win32file, IMAGE_DIRECTORY_ENTRY_IMPORT);
1669 if (pID == NULL)
1670 return TRUE;
1671 if (!GetSectionHdrByImageDir(win32file, IMAGE_DIRECTORY_ENTRY_IMPORT, &shID))
1672 return TRUE;
1673
1674 //calc size of module list
1675 i = Size = cModules = 0;
1676 while (pID[i].Name != 0)
1677 {
1678 //test RVA inside ID-Section
1679 if (pID[i].Name >= shID.VirtualAddress && pID[i].Name < shID.VirtualAddress + max(shID.Misc.VirtualSize, shID.SizeOfRawData)) {
1680 pszTmp = (char*)(pID[i].Name + (ULONG)win32file);
1681 }
1682 else {
1683 //is the "Extra"-section already found or do we have to find it?
1684 if (pID[i].Name < shExtra.VirtualAddress || pID[i].Name >= shExtra.VirtualAddress + max(shExtra.Misc.VirtualSize, shExtra.SizeOfRawData)) {
1685 if (!GetSectionHdrByRVA(win32file, &shExtra, pID[i].Name))
1686 return FALSE;
1687 }
1688 pszTmp = (char*)(pID[i].Name + (ULONG)win32file);
1689 }
1690 Size += strlen(pszTmp) + 1;
1691 i++;
1692 cModules++;
1693 }
1694
1695 pszModules = (char*)malloc(Size);
1696 assert(pszModules != NULL);
1697 j = 0;
1698 for (i = 0; i < cModules; i++)
1699 {
1700 //test RVA inside ID-Section
1701 if (pID[i].Name >= shID.VirtualAddress && pID[i].Name < shID.VirtualAddress + max(shID.Misc.VirtualSize, shID.SizeOfRawData)) {
1702 pszTmp = (char*)(pID[i].Name + (ULONG)win32file);
1703 }
1704 else {
1705 fBorland = TRUE;
1706 //is the "Extra"-section already found or do we have to find it?
1707 if (pID[i].Name < shExtra.VirtualAddress || pID[i].Name >= shExtra.VirtualAddress + max(shExtra.Misc.VirtualSize, shExtra.SizeOfRawData))
1708 {
1709 if (GetSectionHdrByRVA(win32file, &shExtra, pID[i].Name)) {
1710 free(pszModules);
1711 return FALSE;
1712 }
1713 }
1714 pszTmp = (char*)(pID[i].Name + (ULONG)win32file);
1715 }
1716
1717 strcpy(pszModules+j, pszTmp);
1718 j += strlen(pszTmp) + 1;
1719 }
1720 if (fBorland)
1721 dprintf((LOG, "Borland-styled PE-File." ));
1722
1723 //Store modules
1724 dprintf((LOG, "%d imported Modules: ", cModules ));
1725
1726 /* 2) functions */
1727 pszCurModule = pszModules;
1728 pOH = (PIMAGE_OPTIONAL_HEADER)OPTHEADEROFF(win32file);
1729 for (i = 0; i < cModules; i++)
1730 {
1731 dprintf((LOG, "Module %s", pszCurModule ));
1732 if(pID[i].ForwarderChain) {
1733 dprintf((LOG, "ForwarderChain: %x", pID[i].ForwarderChain));
1734 }
1735 // a) check that OriginalFirstThunk not is 0 and look for Borland-styled PE
1736 if (i == 0)
1737 {
1738 //heavy borland-style test - assume array of thunks is within that style does not change
1739 if((ULONG)pID[i].u.OriginalFirstThunk == 0 ||
1740 (ULONG)pID[i].u.OriginalFirstThunk < shID.VirtualAddress ||
1741 (ULONG)pID[i].u.OriginalFirstThunk >= shID.VirtualAddress + max(shID.Misc.VirtualSize, shID.SizeOfRawData) ||
1742 (ULONG)pID[i].u.OriginalFirstThunk >= pOH->DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT].VirtualAddress &&
1743 (ULONG)pID[i].u.OriginalFirstThunk < sizeof(*pID)*cModules + pOH->DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT].VirtualAddress)
1744 {
1745 fBorland = TRUE;
1746 }
1747 }
1748 //light borland-style test
1749 if (pID[i].u.OriginalFirstThunk == 0 || fBorland) {
1750 pulImport = (ULONG*)pID[i].FirstThunk;
1751 }
1752 else pulImport = (ULONG*)pID[i].u.OriginalFirstThunk;
1753
1754 // b) check if RVA ok
1755 if (!(pulImport > 0 && (ULONG)pulImport < pOH->SizeOfImage)) {
1756 dprintf((LOG, "Invalid RVA %x", pulImport ));
1757 break;
1758 }
1759 // check section
1760 if ((ULONG)pulImport < shExtra.VirtualAddress || (ULONG)pulImport >= shExtra.VirtualAddress + max(shExtra.Misc.VirtualSize, shExtra.SizeOfRawData))
1761 {
1762 if (!GetSectionHdrByRVA(win32file, &shExtra, (ULONG)pulImport))
1763 {
1764 dprintf((LOG, "warning: could not find section for Thunk RVA %x", pulImport ));
1765 break;
1766 }
1767 }
1768
1769 //SvL: Load dll if needed
1770 dprintf((LOG, "**********************************************************************" ));
1771 dprintf((LOG, "************** Import Module %s ", pszCurModule ));
1772 dprintf((LOG, "**********************************************************************" ));
1773 WinDll = Win32DllBase::findModule(pszCurModule);
1774
1775 if(WinDll == NULL)
1776 { //not found, so load it
1777 if (WinExe != NULL && WinExe->matchModName(pszCurModule)) {
1778 WinImage = (Win32ImageBase *)WinExe;
1779 }
1780 else {
1781 WinDll = loadDll(pszCurModule);
1782 if(WinDll == NULL) {
1783 return FALSE;
1784 }
1785 }
1786 }
1787 else {
1788 WinDll->AddRef();
1789 dprintf((LOG, "Already found ", pszCurModule));
1790 }
1791 if(WinDll != NULL) {
1792 //add the dll we just loaded to dependency list for this image
1793 addDependency(WinDll);
1794
1795 //Make sure the dependency list is correct (already done
1796 //in the ctor of Win32DllBase, but for LX dlls the parent is
1797 //then set to NULL; so change it here again
1798 WinDll->setUnloadOrder(this);
1799 WinImage = (Win32ImageBase *)WinDll;
1800 }
1801 else
1802 if(WinImage == NULL) {
1803 dprintf((LOG, "Unable to load dll %s", pszCurModule ));
1804 return FALSE;
1805 }
1806
1807 pulImport = (PULONG)((ULONG)pulImport + (ULONG)win32file);
1808 j = 0;
1809 ulCurFixup = (ULONG)pID[i].FirstThunk + (ULONG)win32file;
1810
1811 section = findSectionByOS2Addr(ulCurFixup);
1812 if(section == NULL) {
1813 dprintf((LOG, "Unable to find section for %x", ulCurFixup ));
1814 return FALSE;
1815 }
1816 //SvL: Read page from disk
1817 commitPage(ulCurFixup & ~0xfff, FALSE, SINGLE_PAGE);
1818 //SvL: Enable write access
1819 DosSetMem((PVOID)(ulCurFixup & ~0xfff), PAGE_SIZE, PAG_READ|PAG_WRITE);
1820 nrPages = 1;
1821
1822 while (pulImport[j] != 0) {
1823 if (pulImport[j] & IMAGE_ORDINAL_FLAG) { //ordinal
1824 dprintf((LOG, "0x%08x Imported function %s @%d", ulCurFixup , pszCurModule, (pulImport[j] & ~IMAGE_ORDINAL_FLAG) ));
1825 StoreImportByOrd(WinImage, pulImport[j] & ~IMAGE_ORDINAL_FLAG, ulCurFixup);
1826 }
1827 else { //name
1828 //check
1829 if (pulImport[j] < shExtra.VirtualAddress || pulImport[j] >= shExtra.VirtualAddress + max(shExtra.Misc.VirtualSize, shExtra.SizeOfRawData)) {
1830 if (!GetSectionHdrByRVA(win32file, &shExtra, pulImport[j]))
1831 {
1832 dprintf((LOG, "warning: could not find section for Import Name RVA ", pulImport[j] ));
1833 break;
1834 }
1835 }
1836 //KSO - Aug 6 1998 1:15am:this eases comparing...
1837 char *pszFunctionName = (char*)(pulImport[j] + (ULONG)win32file + 2);
1838 dprintf((LOG, "0x%08x Imported function %s (0x%08x)", ulCurFixup, pszFunctionName, WinImage->getApi(pszFunctionName)));
1839 StoreImportByName(WinImage, pszFunctionName, ulCurFixup);
1840 }
1841 ulCurFixup += sizeof(IMAGE_THUNK_DATA);
1842 j++;
1843 if((ulCurFixup & 0xfff) == 0) {
1844 commitPage(ulCurFixup & ~0xfff, FALSE, SINGLE_PAGE);
1845 DosSetMem((PVOID)(ulCurFixup & ~0xfff), PAGE_SIZE, PAG_READ|PAG_WRITE);
1846 nrPages++;
1847 }
1848 }
1849 //SvL: And restore original protection flags
1850 ulCurFixup = (ULONG)pID[i].FirstThunk + pOH->ImageBase;
1851 DosSetMem((PVOID)(ulCurFixup & ~0xfff), PAGE_SIZE*nrPages, section->pageflags);
1852
1853 dprintf((LOG, "**********************************************************************" ));
1854 dprintf((LOG, "************** End Import Module %s ", pszCurModule ));
1855 dprintf((LOG, "**********************************************************************" ));
1856
1857 pszCurModule += strlen(pszCurModule) + 1;
1858 }//for (i = 0; i < cModules; i++)
1859
1860 free(pszModules);
1861
1862 return TRUE;
1863}
1864//******************************************************************************
1865//******************************************************************************
1866BOOL Win32PeLdrImage::insideModule(ULONG address)
1867{
1868 if((address >= realBaseAddress) && (address < realBaseAddress + imageSize)) {
1869 return TRUE;
1870 }
1871 return FALSE;
1872}
1873//******************************************************************************
1874//******************************************************************************
1875BOOL Win32PeLdrImage::insideModuleCode(ULONG address)
1876{
1877 Section *sect;
1878
1879 sect = findSectionByOS2Addr(address);
1880 if(sect && (sect->pageflags & PAG_EXECUTE)) {
1881 return TRUE;
1882 }
1883 return FALSE;
1884}
1885//******************************************************************************
1886//******************************************************************************
1887ULONG Win32PeLdrImage::getImageSize()
1888{
1889 return imageSize;
1890}
1891//******************************************************************************
1892//******************************************************************************
1893ULONG Win32PeLdrImage::getApi(char *name)
1894{
1895 ULONG apiaddr, i, apilen;
1896 char *apiname;
1897 char tmp[4];
1898 NameExport *curexport;
1899 ULONG ulAPIOrdinal; /* api requested by ordinal */
1900
1901 apilen = strlen(name) + 1;
1902 if(apilen < 4)
1903 {
1904 *(ULONG *)tmp = 0;
1905 strcpy(tmp, name);
1906 apiname = tmp;
1907 apilen = 4;
1908 }
1909 else apiname = name;
1910
1911 curexport = nameexports;
1912 for(i=0; i<nrNameExports; i++)
1913 {
1914 if(apilen == curexport->nlength &&
1915 *(ULONG *)curexport->name == *(ULONG *)apiname)
1916 {
1917 if(strcmp(curexport->name, apiname) == 0)
1918 {
1919 return(curexport->virtaddr);
1920 }
1921 }
1922 curexport = (NameExport *)((ULONG)curexport->name + curexport->nlength);
1923 }
1924 return(0);
1925}
1926//******************************************************************************
1927//******************************************************************************
1928ULONG Win32PeLdrImage::getApi(int ordinal)
1929{
1930 ULONG apiaddr, i;
1931 OrdExport *curexport;
1932 NameExport *nexport;
1933
1934 curexport = ordexports;
1935 for(i=0;i<nrOrdExports;i++)
1936 {
1937 if(curexport->ordinal == ordinal)
1938 return(curexport->virtaddr);
1939 curexport++;
1940 }
1941
1942 //Name exports also contain an ordinal, so check this
1943 nexport = nameexports;
1944 for(i=0;i<nrNameExports;i++)
1945 {
1946 if(nexport->ordinal == ordinal)
1947 return(nexport->virtaddr);
1948
1949 nexport = (NameExport *)((ULONG)nexport->name + nexport->nlength);
1950 }
1951 return(0);
1952}
1953//******************************************************************************
1954//Returns required OS version for this image
1955//******************************************************************************
1956ULONG Win32PeLdrImage::getVersion()
1957{
1958 return (oh.MajorOperatingSystemVersion << 16) | oh.MinorOperatingSystemVersion;
1959}
1960//******************************************************************************
1961//******************************************************************************
1962ULONG MissingApi()
1963{
1964 static BOOL fIgnore = FALSE;
1965 int r;
1966
1967 dprintf((LOG, "Missing api called!\n"));
1968 if(fIgnore)
1969 return(0);
1970
1971 do {
1972 r = WinMessageBox(HWND_DESKTOP, NULLHANDLE, "The application has called a non-existing api\n",
1973 "Internal Odin Error", 0, MB_ABORTRETRYIGNORE | MB_ICONEXCLAMATION | MB_MOVEABLE);
1974 }
1975 while(r == MBID_RETRY); //giggle
1976
1977 if( r != MBID_IGNORE )
1978 ExitProcess(987);
1979
1980 fIgnore = TRUE;
1981 return(0);
1982}
1983/******************************************************************************/
1984/******************************************************************************/
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