VirtualBox

source: vbox/trunk/src/VBox/Debugger/DBGPlugInWinNt.cpp@ 84044

Last change on this file since 84044 was 82968, checked in by vboxsync, 4 years ago

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1/* $Id: DBGPlugInWinNt.cpp 82968 2020-02-04 10:35:17Z vboxsync $ */
2/** @file
3 * DBGPlugInWindows - Debugger and Guest OS Digger Plugin For Windows NT.
4 */
5
6/*
7 * Copyright (C) 2009-2020 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 */
17
18
19/*********************************************************************************************************************************
20* Header Files *
21*********************************************************************************************************************************/
22#define LOG_GROUP LOG_GROUP_DBGF /// @todo add new log group.
23#include "DBGPlugIns.h"
24#include <VBox/vmm/dbgf.h>
25#include <VBox/vmm/cpumctx.h>
26#include <VBox/vmm/mm.h>
27#include <VBox/err.h>
28#include <VBox/param.h>
29#include <iprt/ctype.h>
30#include <iprt/ldr.h>
31#include <iprt/mem.h>
32#include <iprt/path.h>
33#include <iprt/stream.h>
34#include <iprt/string.h>
35#include <iprt/utf16.h>
36#include <iprt/formats/pecoff.h>
37#include <iprt/formats/mz.h>
38#include <iprt/nt/nt-structures.h>
39
40
41/*********************************************************************************************************************************
42* Structures and Typedefs *
43*********************************************************************************************************************************/
44
45/** @name Internal WinNT structures
46 * @{ */
47/**
48 * PsLoadedModuleList entry for 32-bit NT aka LDR_DATA_TABLE_ENTRY.
49 * Tested with XP.
50 */
51typedef struct NTMTE32
52{
53 struct
54 {
55 uint32_t Flink;
56 uint32_t Blink;
57 } InLoadOrderLinks,
58 InMemoryOrderModuleList,
59 InInitializationOrderModuleList;
60 uint32_t DllBase;
61 uint32_t EntryPoint;
62 /** @note This field is not a size in NT 3.1. It's NULL for images loaded by the
63 * boot loader, for other images it looks like some kind of pointer. */
64 uint32_t SizeOfImage;
65 struct
66 {
67 uint16_t Length;
68 uint16_t MaximumLength;
69 uint32_t Buffer;
70 } FullDllName,
71 BaseDllName;
72 uint32_t Flags;
73 uint16_t LoadCount;
74 uint16_t TlsIndex;
75 /* ... there is more ... */
76} NTMTE32;
77typedef NTMTE32 *PNTMTE32;
78
79/**
80 * PsLoadedModuleList entry for 64-bit NT aka LDR_DATA_TABLE_ENTRY.
81 */
82typedef struct NTMTE64
83{
84 struct
85 {
86 uint64_t Flink;
87 uint64_t Blink;
88 } InLoadOrderLinks, /**< 0x00 */
89 InMemoryOrderModuleList, /**< 0x10 */
90 InInitializationOrderModuleList; /**< 0x20 */
91 uint64_t DllBase; /**< 0x30 */
92 uint64_t EntryPoint; /**< 0x38 */
93 uint32_t SizeOfImage; /**< 0x40 */
94 uint32_t Alignment; /**< 0x44 */
95 struct
96 {
97 uint16_t Length; /**< 0x48,0x58 */
98 uint16_t MaximumLength; /**< 0x4a,0x5a */
99 uint32_t Alignment; /**< 0x4c,0x5c */
100 uint64_t Buffer; /**< 0x50,0x60 */
101 } FullDllName, /**< 0x48 */
102 BaseDllName; /**< 0x58 */
103 uint32_t Flags; /**< 0x68 */
104 uint16_t LoadCount; /**< 0x6c */
105 uint16_t TlsIndex; /**< 0x6e */
106 /* ... there is more ... */
107} NTMTE64;
108typedef NTMTE64 *PNTMTE64;
109
110/** MTE union. */
111typedef union NTMTE
112{
113 NTMTE32 vX_32;
114 NTMTE64 vX_64;
115} NTMTE;
116typedef NTMTE *PNTMTE;
117
118
119/**
120 * The essential bits of the KUSER_SHARED_DATA structure.
121 */
122typedef struct NTKUSERSHAREDDATA
123{
124 uint32_t TickCountLowDeprecated;
125 uint32_t TickCountMultiplier;
126 struct
127 {
128 uint32_t LowPart;
129 int32_t High1Time;
130 int32_t High2Time;
131
132 } InterruptTime,
133 SystemTime,
134 TimeZoneBias;
135 uint16_t ImageNumberLow;
136 uint16_t ImageNumberHigh;
137 RTUTF16 NtSystemRoot[260];
138 uint32_t MaxStackTraceDepth;
139 uint32_t CryptoExponent;
140 uint32_t TimeZoneId;
141 uint32_t LargePageMinimum;
142 uint32_t Reserved2[7];
143 uint32_t NtProductType;
144 uint8_t ProductTypeIsValid;
145 uint8_t abPadding[3];
146 uint32_t NtMajorVersion;
147 uint32_t NtMinorVersion;
148 /* uint8_t ProcessorFeatures[64];
149 ...
150 */
151} NTKUSERSHAREDDATA;
152typedef NTKUSERSHAREDDATA *PNTKUSERSHAREDDATA;
153
154/** KI_USER_SHARED_DATA for i386 */
155#define NTKUSERSHAREDDATA_WINNT32 UINT32_C(0xffdf0000)
156/** KI_USER_SHARED_DATA for AMD64 */
157#define NTKUSERSHAREDDATA_WINNT64 UINT64_C(0xfffff78000000000)
158
159/** NTKUSERSHAREDDATA::NtProductType */
160typedef enum NTPRODUCTTYPE
161{
162 kNtProductType_Invalid = 0,
163 kNtProductType_WinNt = 1,
164 kNtProductType_LanManNt,
165 kNtProductType_Server
166} NTPRODUCTTYPE;
167
168
169/** NT image header union. */
170typedef union NTHDRSU
171{
172 IMAGE_NT_HEADERS32 vX_32;
173 IMAGE_NT_HEADERS64 vX_64;
174} NTHDRS;
175/** Pointer to NT image header union. */
176typedef NTHDRS *PNTHDRS;
177/** Pointer to const NT image header union. */
178typedef NTHDRS const *PCNTHDRS;
179
180/** @} */
181
182
183
184typedef enum DBGDIGGERWINNTVER
185{
186 DBGDIGGERWINNTVER_UNKNOWN,
187 DBGDIGGERWINNTVER_3_1,
188 DBGDIGGERWINNTVER_3_5,
189 DBGDIGGERWINNTVER_4_0,
190 DBGDIGGERWINNTVER_5_0,
191 DBGDIGGERWINNTVER_5_1,
192 DBGDIGGERWINNTVER_6_0
193} DBGDIGGERWINNTVER;
194
195/**
196 * WinNT guest OS digger instance data.
197 */
198typedef struct DBGDIGGERWINNT
199{
200 /** Whether the information is valid or not.
201 * (For fending off illegal interface method calls.) */
202 bool fValid;
203 /** 32-bit (true) or 64-bit (false) */
204 bool f32Bit;
205 /** Set if NT 3.1 was detected.
206 * This implies both Misc.VirtualSize and NTMTE32::SizeOfImage are zero. */
207 bool fNt31;
208
209 /** The NT version. */
210 DBGDIGGERWINNTVER enmVer;
211 /** NTKUSERSHAREDDATA::NtProductType */
212 NTPRODUCTTYPE NtProductType;
213 /** NTKUSERSHAREDDATA::NtMajorVersion */
214 uint32_t NtMajorVersion;
215 /** NTKUSERSHAREDDATA::NtMinorVersion */
216 uint32_t NtMinorVersion;
217
218 /** The address of the ntoskrnl.exe image. */
219 DBGFADDRESS KernelAddr;
220 /** The address of the ntoskrnl.exe module table entry. */
221 DBGFADDRESS KernelMteAddr;
222 /** The address of PsLoadedModuleList. */
223 DBGFADDRESS PsLoadedModuleListAddr;
224} DBGDIGGERWINNT;
225/** Pointer to the linux guest OS digger instance data. */
226typedef DBGDIGGERWINNT *PDBGDIGGERWINNT;
227
228
229/**
230 * The WinNT digger's loader reader instance data.
231 */
232typedef struct DBGDIGGERWINNTRDR
233{
234 /** The VM handle (referenced). */
235 PUVM pUVM;
236 /** The image base. */
237 DBGFADDRESS ImageAddr;
238 /** The image size. */
239 uint32_t cbImage;
240 /** The file offset of the SizeOfImage field in the optional header if it
241 * needs patching, otherwise set to UINT32_MAX. */
242 uint32_t offSizeOfImage;
243 /** The correct image size. */
244 uint32_t cbCorrectImageSize;
245 /** Number of entries in the aMappings table. */
246 uint32_t cMappings;
247 /** Mapping hint. */
248 uint32_t iHint;
249 /** Mapping file offset to memory offsets, ordered by file offset. */
250 struct
251 {
252 /** The file offset. */
253 uint32_t offFile;
254 /** The size of this mapping. */
255 uint32_t cbMem;
256 /** The offset to the memory from the start of the image. */
257 uint32_t offMem;
258 } aMappings[1];
259} DBGDIGGERWINNTRDR;
260/** Pointer a WinNT loader reader instance data. */
261typedef DBGDIGGERWINNTRDR *PDBGDIGGERWINNTRDR;
262
263
264/*********************************************************************************************************************************
265* Defined Constants And Macros *
266*********************************************************************************************************************************/
267/** Validates a 32-bit Windows NT kernel address */
268#define WINNT32_VALID_ADDRESS(Addr) ((Addr) > UINT32_C(0x80000000) && (Addr) < UINT32_C(0xfffff000))
269/** Validates a 64-bit Windows NT kernel address */
270#define WINNT64_VALID_ADDRESS(Addr) ((Addr) > UINT64_C(0xffff800000000000) && (Addr) < UINT64_C(0xfffffffffffff000))
271/** Validates a kernel address. */
272#define WINNT_VALID_ADDRESS(pThis, Addr) ((pThis)->f32Bit ? WINNT32_VALID_ADDRESS(Addr) : WINNT64_VALID_ADDRESS(Addr))
273/** Versioned and bitness wrapper. */
274#define WINNT_UNION(pThis, pUnion, Member) ((pThis)->f32Bit ? (pUnion)->vX_32. Member : (pUnion)->vX_64. Member )
275
276/** The length (in chars) of the kernel file name (no path). */
277#define WINNT_KERNEL_BASE_NAME_LEN 12
278
279/** WindowsNT on little endian ASCII systems. */
280#define DIG_WINNT_MOD_TAG UINT64_C(0x54696e646f774e54)
281
282
283/*********************************************************************************************************************************
284* Internal Functions *
285*********************************************************************************************************************************/
286static DECLCALLBACK(int) dbgDiggerWinNtInit(PUVM pUVM, void *pvData);
287
288
289/*********************************************************************************************************************************
290* Global Variables *
291*********************************************************************************************************************************/
292/** Kernel names. */
293static const RTUTF16 g_wszKernelNames[][WINNT_KERNEL_BASE_NAME_LEN + 1] =
294{
295 { 'n', 't', 'o', 's', 'k', 'r', 'n', 'l', '.', 'e', 'x', 'e' }
296};
297
298
299
300/**
301 * Process a PE image found in guest memory.
302 *
303 * @param pThis The instance data.
304 * @param pUVM The user mode VM handle.
305 * @param pszName The module name.
306 * @param pszFilename The image filename.
307 * @param pImageAddr The image address.
308 * @param cbImage The size of the image.
309 */
310static void dbgDiggerWinNtProcessImage(PDBGDIGGERWINNT pThis, PUVM pUVM, const char *pszName, const char *pszFilename,
311 PCDBGFADDRESS pImageAddr, uint32_t cbImage)
312{
313 LogFlow(("DigWinNt: %RGp %#x %s\n", pImageAddr->FlatPtr, cbImage, pszName));
314
315 /*
316 * Do some basic validation first.
317 */
318 if ( (cbImage < sizeof(IMAGE_NT_HEADERS64) && !pThis->fNt31)
319 || cbImage >= _1M * 256)
320 {
321 Log(("DigWinNt: %s: Bad image size: %#x\n", pszName, cbImage));
322 return;
323 }
324
325 /*
326 * Use the common in-memory module reader to create a debug module.
327 */
328 RTERRINFOSTATIC ErrInfo;
329 RTDBGMOD hDbgMod = NIL_RTDBGMOD;
330 int rc = DBGFR3ModInMem(pUVM, pImageAddr, pThis->fNt31 ? DBGFMODINMEM_F_PE_NT31 : 0, pszName, pszFilename,
331 pThis->f32Bit ? RTLDRARCH_X86_32 : RTLDRARCH_AMD64, cbImage,
332 &hDbgMod, RTErrInfoInitStatic(&ErrInfo));
333 if (RT_SUCCESS(rc))
334 {
335 /*
336 * Tag the module.
337 */
338 rc = RTDbgModSetTag(hDbgMod, DIG_WINNT_MOD_TAG);
339 AssertRC(rc);
340
341 /*
342 * Link the module.
343 */
344 RTDBGAS hAs = DBGFR3AsResolveAndRetain(pUVM, DBGF_AS_KERNEL);
345 if (hAs != NIL_RTDBGAS)
346 rc = RTDbgAsModuleLink(hAs, hDbgMod, pImageAddr->FlatPtr, RTDBGASLINK_FLAGS_REPLACE /*fFlags*/);
347 else
348 rc = VERR_INTERNAL_ERROR;
349 RTDbgModRelease(hDbgMod);
350 RTDbgAsRelease(hAs);
351 }
352 else if (RTErrInfoIsSet(&ErrInfo.Core))
353 Log(("DigWinNt: %s: DBGFR3ModInMem failed: %Rrc - %s\n", pszName, rc, ErrInfo.Core.pszMsg));
354 else
355 Log(("DigWinNt: %s: DBGFR3ModInMem failed: %Rrc\n", pszName, rc));
356}
357
358
359/**
360 * Generate a debugger compatible module name from a filename.
361 *
362 * @returns Pointer to module name (doesn't need to be pszName).
363 * @param pszFilename The source filename.
364 * @param pszName Buffer to put the module name in.
365 * @param cbName Buffer size.
366 */
367static const char *dbgDiggerWintNtFilenameToModuleName(const char *pszFilename, char *pszName, size_t cbName)
368{
369 /* Skip to the filename part of the filename. :-) */
370 pszFilename = RTPathFilenameEx(pszFilename, RTPATH_STR_F_STYLE_DOS);
371
372 /* We try use 'nt' for the kernel. */
373 if ( RTStrICmpAscii(pszFilename, "ntoskrnl.exe") == 0
374 || RTStrICmpAscii(pszFilename, "ntkrnlmp.exe") == 0)
375 return "nt";
376
377
378 /* Drop the extension if .dll or .sys. */
379 size_t cchFilename = strlen(pszFilename);
380 if ( cchFilename > 4
381 && pszFilename[cchFilename - 4] == '.')
382 {
383 if ( RTStrICmpAscii(&pszFilename[cchFilename - 4], ".sys") == 0
384 || RTStrICmpAscii(&pszFilename[cchFilename - 4], ".dll") == 0)
385 cchFilename -= 4;
386 }
387
388 /* Copy and do replacements. */
389 if (cchFilename >= cbName)
390 cchFilename = cbName - 1;
391 size_t off;
392 for (off = 0; off < cchFilename; off++)
393 {
394 char ch = pszFilename[off];
395 if (!RT_C_IS_ALNUM(ch))
396 ch = '_';
397 pszName[off] = ch;
398 }
399 pszName[off] = '\0';
400 return pszName;
401}
402
403
404/**
405 * @copydoc DBGFOSREG::pfnStackUnwindAssist
406 */
407static DECLCALLBACK(int) dbgDiggerWinNtStackUnwindAssist(PUVM pUVM, void *pvData, VMCPUID idCpu, PDBGFSTACKFRAME pFrame,
408 PRTDBGUNWINDSTATE pState, PCCPUMCTX pInitialCtx, RTDBGAS hAs,
409 uint64_t *puScratch)
410{
411 Assert(pInitialCtx);
412
413 /*
414 * We want to locate trap frames here. The trap frame structure contains
415 * the 64-bit IRET frame, so given unwind information it's easy to identify
416 * using the return type and frame address.
417 */
418 if (pFrame->fFlags & DBGFSTACKFRAME_FLAGS_64BIT)
419 {
420 /*
421 * Is this a trap frame? If so, try read the trap frame.
422 */
423 if ( pFrame->enmReturnType == RTDBGRETURNTYPE_IRET64
424 && !(pFrame->AddrFrame.FlatPtr & 0x7)
425 && WINNT64_VALID_ADDRESS(pFrame->AddrFrame.FlatPtr) )
426 {
427 KTRAP_FRAME_AMD64 TrapFrame;
428 RT_ZERO(TrapFrame);
429 uint64_t const uTrapFrameAddr = pFrame->AddrFrame.FlatPtr
430 - RT_UOFFSETOF(KTRAP_FRAME_AMD64, ErrCdOrXcptFrameOrS);
431 int rc = pState->pfnReadStack(pState, uTrapFrameAddr, sizeof(TrapFrame), &TrapFrame);
432 if (RT_SUCCESS(rc))
433 {
434 /* Valid? Not too much else we can check here (EFlags isn't
435 reliable in manually construct frames). */
436 if (TrapFrame.ExceptionActive <= 2)
437 {
438 pFrame->fFlags |= DBGFSTACKFRAME_FLAGS_TRAP_FRAME;
439
440 /*
441 * Add sure 'register' information from the frame to the frame.
442 *
443 * To avoid code duplication, we do this in two steps in a loop.
444 * The first iteration only figures out how many registers we're
445 * going to save and allocates room for them. The second iteration
446 * does the actual adding.
447 */
448 uint32_t cRegs = pFrame->cSureRegs;
449 PDBGFREGVALEX paSureRegs = NULL;
450#define ADD_REG_NAMED(a_Type, a_ValMemb, a_Value, a_pszName) do { \
451 if (paSureRegs) \
452 { \
453 paSureRegs[iReg].pszName = a_pszName;\
454 paSureRegs[iReg].enmReg = DBGFREG_END; \
455 paSureRegs[iReg].enmType = a_Type; \
456 paSureRegs[iReg].Value.a_ValMemb = (a_Value); \
457 } \
458 iReg++; \
459 } while (0)
460#define MAYBE_ADD_GREG(a_Value, a_enmReg, a_idxReg) do { \
461 if (!(pState->u.x86.Loaded.s.fRegs & RT_BIT(a_idxReg))) \
462 { \
463 if (paSureRegs) \
464 { \
465 pState->u.x86.Loaded.s.fRegs |= RT_BIT(a_idxReg); \
466 pState->u.x86.auRegs[a_idxReg] = (a_Value); \
467 paSureRegs[iReg].Value.u64 = (a_Value); \
468 paSureRegs[iReg].enmReg = a_enmReg; \
469 paSureRegs[iReg].enmType = DBGFREGVALTYPE_U64; \
470 paSureRegs[iReg].pszName = NULL; \
471 } \
472 iReg++; \
473 } \
474 } while (0)
475 for (unsigned iLoop = 0; iLoop < 2; iLoop++)
476 {
477 uint32_t iReg = pFrame->cSureRegs;
478 ADD_REG_NAMED(DBGFREGVALTYPE_U64, u64, uTrapFrameAddr, "TrapFrame");
479 ADD_REG_NAMED(DBGFREGVALTYPE_U8, u8, TrapFrame.ExceptionActive, "ExceptionActive");
480 if (TrapFrame.ExceptionActive == 0)
481 {
482 ADD_REG_NAMED(DBGFREGVALTYPE_U8, u8, TrapFrame.PreviousIrql, "PrevIrql");
483 ADD_REG_NAMED(DBGFREGVALTYPE_U8, u8, (uint8_t)TrapFrame.ErrCdOrXcptFrameOrS, "IntNo");
484 }
485 else if ( TrapFrame.ExceptionActive == 1
486 && TrapFrame.FaultIndicator == ((TrapFrame.ErrCdOrXcptFrameOrS >> 1) & 0x9))
487 ADD_REG_NAMED(DBGFREGVALTYPE_U64, u64, TrapFrame.FaultAddrOrCtxRecOrTS, "cr2-probably");
488 if (TrapFrame.SegCs & X86_SEL_RPL)
489 ADD_REG_NAMED(DBGFREGVALTYPE_U8, u8, 1, "UserMode");
490 else
491 ADD_REG_NAMED(DBGFREGVALTYPE_U8, u8, 1, "KernelMode");
492 if (TrapFrame.ExceptionActive <= 1)
493 {
494 MAYBE_ADD_GREG(TrapFrame.Rax, DBGFREG_RAX, X86_GREG_xAX);
495 MAYBE_ADD_GREG(TrapFrame.Rcx, DBGFREG_RCX, X86_GREG_xCX);
496 MAYBE_ADD_GREG(TrapFrame.Rdx, DBGFREG_RDX, X86_GREG_xDX);
497 MAYBE_ADD_GREG(TrapFrame.R8, DBGFREG_R8, X86_GREG_x8);
498 MAYBE_ADD_GREG(TrapFrame.R9, DBGFREG_R9, X86_GREG_x9);
499 MAYBE_ADD_GREG(TrapFrame.R10, DBGFREG_R10, X86_GREG_x10);
500 MAYBE_ADD_GREG(TrapFrame.R11, DBGFREG_R11, X86_GREG_x11);
501 }
502 else if (TrapFrame.ExceptionActive == 2)
503 {
504 MAYBE_ADD_GREG(TrapFrame.Rbx, DBGFREG_RBX, X86_GREG_xBX);
505 MAYBE_ADD_GREG(TrapFrame.Rsi, DBGFREG_RSI, X86_GREG_xSI);
506 MAYBE_ADD_GREG(TrapFrame.Rdi, DBGFREG_RDI, X86_GREG_xDI);
507 }
508 // MAYBE_ADD_GREG(TrapFrame.Rbp, DBGFREG_RBP, X86_GREG_xBP); - KiInterrupt[Sub]Dispatch* may leave this invalid.
509
510 /* Done? */
511 if (iLoop > 0)
512 {
513 Assert(cRegs == iReg);
514 break;
515 }
516
517 /* Resize the array, zeroing the extension. */
518 if (pFrame->cSureRegs)
519 paSureRegs = (PDBGFREGVALEX)MMR3HeapRealloc(pFrame->paSureRegs, iReg * sizeof(paSureRegs[0]));
520 else
521 paSureRegs = (PDBGFREGVALEX)MMR3HeapAllocU(pUVM, MM_TAG_DBGF_STACK, iReg * sizeof(paSureRegs[0]));
522 AssertReturn(paSureRegs, VERR_NO_MEMORY);
523
524 pFrame->paSureRegs = paSureRegs;
525 RT_BZERO(&paSureRegs[pFrame->cSureRegs], (iReg - pFrame->cSureRegs) * sizeof(paSureRegs[0]));
526 cRegs = iReg;
527 }
528#undef ADD_REG_NAMED
529#undef MAYBE_ADD_GREG
530
531 /* Commit the register update. */
532 pFrame->cSureRegs = cRegs;
533 }
534 }
535 }
536 }
537
538 RT_NOREF(pUVM, pvData, idCpu, hAs, pInitialCtx, puScratch);
539 return VINF_SUCCESS;
540}
541
542
543/**
544 * @copydoc DBGFOSREG::pfnQueryInterface
545 */
546static DECLCALLBACK(void *) dbgDiggerWinNtQueryInterface(PUVM pUVM, void *pvData, DBGFOSINTERFACE enmIf)
547{
548 RT_NOREF3(pUVM, pvData, enmIf);
549 return NULL;
550}
551
552
553/**
554 * @copydoc DBGFOSREG::pfnQueryVersion
555 */
556static DECLCALLBACK(int) dbgDiggerWinNtQueryVersion(PUVM pUVM, void *pvData, char *pszVersion, size_t cchVersion)
557{
558 RT_NOREF1(pUVM);
559 PDBGDIGGERWINNT pThis = (PDBGDIGGERWINNT)pvData;
560 Assert(pThis->fValid);
561 const char *pszNtProductType;
562 switch (pThis->NtProductType)
563 {
564 case kNtProductType_WinNt: pszNtProductType = "-WinNT"; break;
565 case kNtProductType_LanManNt: pszNtProductType = "-LanManNT"; break;
566 case kNtProductType_Server: pszNtProductType = "-Server"; break;
567 default: pszNtProductType = ""; break;
568 }
569 RTStrPrintf(pszVersion, cchVersion, "%u.%u-%s%s", pThis->NtMajorVersion, pThis->NtMinorVersion,
570 pThis->f32Bit ? "x86" : "AMD64", pszNtProductType);
571 return VINF_SUCCESS;
572}
573
574
575/**
576 * @copydoc DBGFOSREG::pfnTerm
577 */
578static DECLCALLBACK(void) dbgDiggerWinNtTerm(PUVM pUVM, void *pvData)
579{
580 RT_NOREF1(pUVM);
581 PDBGDIGGERWINNT pThis = (PDBGDIGGERWINNT)pvData;
582 Assert(pThis->fValid);
583
584 /*
585 * As long as we're using our private LDR reader implementation,
586 * we must unlink and ditch the modules we created.
587 */
588 RTDBGAS hDbgAs = DBGFR3AsResolveAndRetain(pUVM, DBGF_AS_KERNEL);
589 if (hDbgAs != NIL_RTDBGAS)
590 {
591 uint32_t iMod = RTDbgAsModuleCount(hDbgAs);
592 while (iMod-- > 0)
593 {
594 RTDBGMOD hMod = RTDbgAsModuleByIndex(hDbgAs, iMod);
595 if (hMod != NIL_RTDBGMOD)
596 {
597 if (RTDbgModGetTag(hMod) == DIG_WINNT_MOD_TAG)
598 {
599 int rc = RTDbgAsModuleUnlink(hDbgAs, hMod);
600 AssertRC(rc);
601 }
602 RTDbgModRelease(hMod);
603 }
604 }
605 RTDbgAsRelease(hDbgAs);
606 }
607
608 pThis->fValid = false;
609}
610
611
612/**
613 * @copydoc DBGFOSREG::pfnRefresh
614 */
615static DECLCALLBACK(int) dbgDiggerWinNtRefresh(PUVM pUVM, void *pvData)
616{
617 PDBGDIGGERWINNT pThis = (PDBGDIGGERWINNT)pvData;
618 NOREF(pThis);
619 Assert(pThis->fValid);
620
621 /*
622 * For now we'll flush and reload everything.
623 */
624 dbgDiggerWinNtTerm(pUVM, pvData);
625
626 return dbgDiggerWinNtInit(pUVM, pvData);
627}
628
629
630/**
631 * @copydoc DBGFOSREG::pfnInit
632 */
633static DECLCALLBACK(int) dbgDiggerWinNtInit(PUVM pUVM, void *pvData)
634{
635 PDBGDIGGERWINNT pThis = (PDBGDIGGERWINNT)pvData;
636 Assert(!pThis->fValid);
637
638 union
639 {
640 uint8_t au8[0x2000];
641 RTUTF16 wsz[0x2000/2];
642 NTKUSERSHAREDDATA UserSharedData;
643 } u;
644 DBGFADDRESS Addr;
645 int rc;
646
647 /*
648 * Figure the NT version.
649 */
650 DBGFR3AddrFromFlat(pUVM, &Addr, pThis->f32Bit ? NTKUSERSHAREDDATA_WINNT32 : NTKUSERSHAREDDATA_WINNT64);
651 rc = DBGFR3MemRead(pUVM, 0 /*idCpu*/, &Addr, &u, PAGE_SIZE);
652 if (RT_SUCCESS(rc))
653 {
654 pThis->NtProductType = u.UserSharedData.ProductTypeIsValid && u.UserSharedData.NtProductType <= kNtProductType_Server
655 ? (NTPRODUCTTYPE)u.UserSharedData.NtProductType
656 : kNtProductType_Invalid;
657 pThis->NtMajorVersion = u.UserSharedData.NtMajorVersion;
658 pThis->NtMinorVersion = u.UserSharedData.NtMinorVersion;
659 }
660 else if (pThis->fNt31)
661 {
662 pThis->NtProductType = kNtProductType_WinNt;
663 pThis->NtMajorVersion = 3;
664 pThis->NtMinorVersion = 1;
665 }
666 else
667 {
668 Log(("DigWinNt: Error reading KUSER_SHARED_DATA: %Rrc\n", rc));
669 return rc;
670 }
671
672 /*
673 * Dig out the module chain.
674 */
675 DBGFADDRESS AddrPrev = pThis->PsLoadedModuleListAddr;
676 Addr = pThis->KernelMteAddr;
677 do
678 {
679 /* Read the validate the MTE. */
680 NTMTE Mte;
681 rc = DBGFR3MemRead(pUVM, 0 /*idCpu*/, &Addr, &Mte, pThis->f32Bit ? sizeof(Mte.vX_32) : sizeof(Mte.vX_64));
682 if (RT_FAILURE(rc))
683 break;
684 if (WINNT_UNION(pThis, &Mte, InLoadOrderLinks.Blink) != AddrPrev.FlatPtr)
685 {
686 Log(("DigWinNt: Bad Mte At %RGv - backpointer\n", Addr.FlatPtr));
687 break;
688 }
689 if (!WINNT_VALID_ADDRESS(pThis, WINNT_UNION(pThis, &Mte, InLoadOrderLinks.Flink)) )
690 {
691 Log(("DigWinNt: Bad Mte at %RGv - forward pointer\n", Addr.FlatPtr));
692 break;
693 }
694 if (!WINNT_VALID_ADDRESS(pThis, WINNT_UNION(pThis, &Mte, BaseDllName.Buffer)))
695 {
696 Log(("DigWinNt: Bad Mte at %RGv - BaseDllName=%llx\n", Addr.FlatPtr, WINNT_UNION(pThis, &Mte, BaseDllName.Buffer)));
697 break;
698 }
699 if (!WINNT_VALID_ADDRESS(pThis, WINNT_UNION(pThis, &Mte, FullDllName.Buffer)))
700 {
701 Log(("DigWinNt: Bad Mte at %RGv - FullDllName=%llx\n", Addr.FlatPtr, WINNT_UNION(pThis, &Mte, FullDllName.Buffer)));
702 break;
703 }
704 if (!WINNT_VALID_ADDRESS(pThis, WINNT_UNION(pThis, &Mte, DllBase)))
705 {
706 Log(("DigWinNt: Bad Mte at %RGv - DllBase=%llx\n", Addr.FlatPtr, WINNT_UNION(pThis, &Mte, DllBase) ));
707 break;
708 }
709
710 uint32_t const cbImageMte = !pThis->fNt31 ? WINNT_UNION(pThis, &Mte, SizeOfImage) : 0;
711 if ( !pThis->fNt31
712 && ( cbImageMte > _256M
713 || WINNT_UNION(pThis, &Mte, EntryPoint) - WINNT_UNION(pThis, &Mte, DllBase) > cbImageMte) )
714 {
715 Log(("DigWinNt: Bad Mte at %RGv - EntryPoint=%llx SizeOfImage=%x DllBase=%llx\n",
716 Addr.FlatPtr, WINNT_UNION(pThis, &Mte, EntryPoint), cbImageMte, WINNT_UNION(pThis, &Mte, DllBase)));
717 break;
718 }
719
720 /* Read the full name. */
721 DBGFADDRESS AddrName;
722 DBGFR3AddrFromFlat(pUVM, &AddrName, WINNT_UNION(pThis, &Mte, FullDllName.Buffer));
723 uint16_t cbName = WINNT_UNION(pThis, &Mte, FullDllName.Length);
724 if (cbName < sizeof(u))
725 rc = DBGFR3MemRead(pUVM, 0 /*idCpu*/, &AddrName, &u, cbName);
726 else
727 rc = VERR_OUT_OF_RANGE;
728 if (RT_FAILURE(rc))
729 {
730 DBGFR3AddrFromFlat(pUVM, &AddrName, WINNT_UNION(pThis, &Mte, BaseDllName.Buffer));
731 cbName = WINNT_UNION(pThis, &Mte, BaseDllName.Length);
732 if (cbName < sizeof(u))
733 rc = DBGFR3MemRead(pUVM, 0 /*idCpu*/, &AddrName, &u, cbName);
734 else
735 rc = VERR_OUT_OF_RANGE;
736 }
737 if (RT_SUCCESS(rc))
738 {
739 u.wsz[cbName / 2] = '\0';
740
741 char *pszFilename;
742 rc = RTUtf16ToUtf8(u.wsz, &pszFilename);
743 if (RT_SUCCESS(rc))
744 {
745 char szModName[128];
746 const char *pszModName = dbgDiggerWintNtFilenameToModuleName(pszFilename, szModName, sizeof(szModName));
747
748 /* Read the start of the PE image and pass it along to a worker. */
749 DBGFADDRESS ImageAddr;
750 DBGFR3AddrFromFlat(pUVM, &ImageAddr, WINNT_UNION(pThis, &Mte, DllBase));
751 dbgDiggerWinNtProcessImage(pThis, pUVM, pszModName, pszFilename, &ImageAddr, cbImageMte);
752 RTStrFree(pszFilename);
753 }
754 }
755
756 /* next */
757 AddrPrev = Addr;
758 DBGFR3AddrFromFlat(pUVM, &Addr, WINNT_UNION(pThis, &Mte, InLoadOrderLinks.Flink));
759 } while ( Addr.FlatPtr != pThis->KernelMteAddr.FlatPtr
760 && Addr.FlatPtr != pThis->PsLoadedModuleListAddr.FlatPtr);
761
762 pThis->fValid = true;
763 return VINF_SUCCESS;
764}
765
766
767/**
768 * @copydoc DBGFOSREG::pfnProbe
769 */
770static DECLCALLBACK(bool) dbgDiggerWinNtProbe(PUVM pUVM, void *pvData)
771{
772 PDBGDIGGERWINNT pThis = (PDBGDIGGERWINNT)pvData;
773 DBGFADDRESS Addr;
774 union
775 {
776 uint8_t au8[8192];
777 uint16_t au16[8192/2];
778 uint32_t au32[8192/4];
779 IMAGE_DOS_HEADER MzHdr;
780 RTUTF16 wsz[8192/2];
781 X86DESCGATE a32Gates[X86_XCPT_PF + 1];
782 X86DESC64GATE a64Gates[X86_XCPT_PF + 1];
783 } u;
784
785 union
786 {
787 NTMTE32 v32;
788 NTMTE64 v64;
789 } uMte, uMte2, uMte3;
790
791 /*
792 * NT only runs in protected or long mode.
793 */
794 CPUMMODE const enmMode = DBGFR3CpuGetMode(pUVM, 0 /*idCpu*/);
795 if (enmMode != CPUMMODE_PROTECTED && enmMode != CPUMMODE_LONG)
796 return false;
797 bool const f64Bit = enmMode == CPUMMODE_LONG;
798 uint64_t const uStart = f64Bit ? UINT64_C(0xffff080000000000) : UINT32_C(0x80001000);
799 uint64_t const uEnd = f64Bit ? UINT64_C(0xffffffffffff0000) : UINT32_C(0xffff0000);
800
801 /*
802 * To approximately locate the kernel we examine the IDTR handlers.
803 *
804 * The exception/trap/fault handlers are all in NT kernel image, we pick
805 * KiPageFault here.
806 */
807 uint64_t uIdtrBase = 0;
808 uint16_t uIdtrLimit = 0;
809 int rc = DBGFR3RegCpuQueryXdtr(pUVM, 0, DBGFREG_IDTR, &uIdtrBase, &uIdtrLimit);
810 AssertRCReturn(rc, false);
811
812 const uint16_t cbMinIdtr = (X86_XCPT_PF + 1) * (f64Bit ? sizeof(X86DESC64GATE) : sizeof(X86DESCGATE));
813 if (uIdtrLimit < cbMinIdtr)
814 return false;
815
816 rc = DBGFR3MemRead(pUVM, 0 /*idCpu*/, DBGFR3AddrFromFlat(pUVM, &Addr, uIdtrBase), &u, cbMinIdtr);
817 if (RT_FAILURE(rc))
818 return false;
819
820 uint64_t uKrnlStart = uStart;
821 uint64_t uKrnlEnd = uEnd;
822 if (f64Bit)
823 {
824 uint64_t uHandler = u.a64Gates[X86_XCPT_PF].u16OffsetLow
825 | ((uint32_t)u.a64Gates[X86_XCPT_PF].u16OffsetHigh << 16)
826 | ((uint64_t)u.a64Gates[X86_XCPT_PF].u32OffsetTop << 32);
827 if (uHandler < uStart || uHandler > uEnd)
828 return false;
829 uKrnlStart = (uHandler & ~(uint64_t)_4M) - _512M;
830 uKrnlEnd = (uHandler + (uint64_t)_4M) & ~(uint64_t)_4M;
831 }
832 else
833 {
834 uint32_t uHandler = RT_MAKE_U32(u.a32Gates[X86_XCPT_PF].u16OffsetLow, u.a32Gates[X86_XCPT_PF].u16OffsetHigh);
835 if (uHandler < uStart || uHandler > uEnd)
836 return false;
837 uKrnlStart = (uHandler & ~(uint64_t)_4M) - _64M;
838 uKrnlEnd = (uHandler + (uint64_t)_4M) & ~(uint64_t)_4M;
839 }
840
841 /*
842 * Look for the PAGELK section name that seems to be a part of all kernels.
843 * Then try find the module table entry for it. Since it's the first entry
844 * in the PsLoadedModuleList we can easily validate the list head and report
845 * success.
846 *
847 * Note! We ASSUME the section name is 8 byte aligned.
848 */
849 DBGFADDRESS KernelAddr;
850 for (DBGFR3AddrFromFlat(pUVM, &KernelAddr, uKrnlStart);
851 KernelAddr.FlatPtr < uKrnlEnd;
852 KernelAddr.FlatPtr += PAGE_SIZE)
853 {
854 bool fNt31 = false;
855 DBGFADDRESS const RetryAddress = KernelAddr;
856 rc = DBGFR3MemScan(pUVM, 0 /*idCpu*/, &KernelAddr, uEnd - KernelAddr.FlatPtr,
857 8, "PAGELK\0", sizeof("PAGELK\0"), &KernelAddr);
858 if ( rc == VERR_DBGF_MEM_NOT_FOUND
859 && enmMode != CPUMMODE_LONG)
860 {
861 /* NT3.1 didn't have a PAGELK section, so look for _TEXT instead. The
862 following VirtualSize is zero, so check for that too. */
863 rc = DBGFR3MemScan(pUVM, 0 /*idCpu*/, &RetryAddress, uEnd - RetryAddress.FlatPtr,
864 8, "_TEXT\0\0\0\0\0\0", sizeof("_TEXT\0\0\0\0\0\0"), &KernelAddr);
865 fNt31 = true;
866 }
867 if (RT_FAILURE(rc))
868 break;
869 DBGFR3AddrSub(&KernelAddr, KernelAddr.FlatPtr & PAGE_OFFSET_MASK);
870
871 /* MZ + PE header. */
872 rc = DBGFR3MemRead(pUVM, 0 /*idCpu*/, &KernelAddr, &u, sizeof(u));
873 if ( RT_SUCCESS(rc)
874 && u.MzHdr.e_magic == IMAGE_DOS_SIGNATURE
875 && !(u.MzHdr.e_lfanew & 0x7)
876 && u.MzHdr.e_lfanew >= 0x080
877 && u.MzHdr.e_lfanew <= 0x400) /* W8 is at 0x288*/
878 {
879 if (enmMode != CPUMMODE_LONG)
880 {
881 IMAGE_NT_HEADERS32 const *pHdrs = (IMAGE_NT_HEADERS32 const *)&u.au8[u.MzHdr.e_lfanew];
882 if ( pHdrs->Signature == IMAGE_NT_SIGNATURE
883 && pHdrs->FileHeader.Machine == IMAGE_FILE_MACHINE_I386
884 && pHdrs->FileHeader.SizeOfOptionalHeader == sizeof(pHdrs->OptionalHeader)
885 && pHdrs->FileHeader.NumberOfSections >= 10 /* the kernel has lots */
886 && (pHdrs->FileHeader.Characteristics & (IMAGE_FILE_EXECUTABLE_IMAGE | IMAGE_FILE_DLL)) == IMAGE_FILE_EXECUTABLE_IMAGE
887 && pHdrs->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR32_MAGIC
888 && pHdrs->OptionalHeader.NumberOfRvaAndSizes == IMAGE_NUMBEROF_DIRECTORY_ENTRIES
889 )
890 {
891 /* Find the MTE. */
892 RT_ZERO(uMte);
893 uMte.v32.DllBase = KernelAddr.FlatPtr;
894 uMte.v32.EntryPoint = KernelAddr.FlatPtr + pHdrs->OptionalHeader.AddressOfEntryPoint;
895 uMte.v32.SizeOfImage = !fNt31 ? pHdrs->OptionalHeader.SizeOfImage : 0; /* NT 3.1 didn't set the size. */
896 DBGFADDRESS HitAddr;
897 rc = DBGFR3MemScan(pUVM, 0 /*idCpu*/, &KernelAddr, uEnd - KernelAddr.FlatPtr,
898 4 /*align*/, &uMte.v32.DllBase, 3 * sizeof(uint32_t), &HitAddr);
899 while (RT_SUCCESS(rc))
900 {
901 /* check the name. */
902 DBGFADDRESS MteAddr = HitAddr;
903 rc = DBGFR3MemRead(pUVM, 0 /*idCpu*/, DBGFR3AddrSub(&MteAddr, RT_OFFSETOF(NTMTE32, DllBase)),
904 &uMte2.v32, sizeof(uMte2.v32));
905 if ( RT_SUCCESS(rc)
906 && uMte2.v32.DllBase == uMte.v32.DllBase
907 && uMte2.v32.EntryPoint == uMte.v32.EntryPoint
908 && uMte2.v32.SizeOfImage == uMte.v32.SizeOfImage
909 && WINNT32_VALID_ADDRESS(uMte2.v32.InLoadOrderLinks.Flink)
910 && WINNT32_VALID_ADDRESS(uMte2.v32.BaseDllName.Buffer)
911 && WINNT32_VALID_ADDRESS(uMte2.v32.FullDllName.Buffer)
912 && uMte2.v32.BaseDllName.Length <= 128
913 && uMte2.v32.FullDllName.Length <= 260
914 )
915 {
916 rc = DBGFR3MemRead(pUVM, 0 /*idCpu*/, DBGFR3AddrFromFlat(pUVM, &Addr, uMte2.v32.BaseDllName.Buffer),
917 u.wsz, uMte2.v32.BaseDllName.Length);
918 u.wsz[uMte2.v32.BaseDllName.Length / 2] = '\0';
919 if ( RT_SUCCESS(rc)
920 && ( !RTUtf16ICmp(u.wsz, g_wszKernelNames[0])
921 /* || !RTUtf16ICmp(u.wsz, g_wszKernelNames[1]) */
922 )
923 )
924 {
925 rc = DBGFR3MemRead(pUVM, 0 /*idCpu*/,
926 DBGFR3AddrFromFlat(pUVM, &Addr, uMte2.v32.InLoadOrderLinks.Blink),
927 &uMte3.v32, RT_SIZEOFMEMB(NTMTE32, InLoadOrderLinks));
928 if ( RT_SUCCESS(rc)
929 && uMte3.v32.InLoadOrderLinks.Flink == MteAddr.FlatPtr
930 && WINNT32_VALID_ADDRESS(uMte3.v32.InLoadOrderLinks.Blink) )
931 {
932 Log(("DigWinNt: MteAddr=%RGv KernelAddr=%RGv SizeOfImage=%x &PsLoadedModuleList=%RGv (32-bit)\n",
933 MteAddr.FlatPtr, KernelAddr.FlatPtr, uMte2.v32.SizeOfImage, Addr.FlatPtr));
934 pThis->KernelAddr = KernelAddr;
935 pThis->KernelMteAddr = MteAddr;
936 pThis->PsLoadedModuleListAddr = Addr;
937 pThis->f32Bit = true;
938 pThis->fNt31 = fNt31;
939 return true;
940 }
941 }
942 else if (RT_SUCCESS(rc))
943 {
944 Log2(("DigWinNt: Wrong module: MteAddr=%RGv ImageAddr=%RGv SizeOfImage=%#x '%ls'\n",
945 MteAddr.FlatPtr, KernelAddr.FlatPtr, uMte2.v32.SizeOfImage, u.wsz));
946 break; /* Not NT kernel */
947 }
948 }
949
950 /* next */
951 DBGFR3AddrAdd(&HitAddr, 4);
952 if (HitAddr.FlatPtr < uEnd)
953 rc = DBGFR3MemScan(pUVM, 0 /*idCpu*/, &HitAddr, uEnd - HitAddr.FlatPtr,
954 4 /*align*/, &uMte.v32.DllBase, 3 * sizeof(uint32_t), &HitAddr);
955 else
956 rc = VERR_DBGF_MEM_NOT_FOUND;
957 }
958 }
959 }
960 else
961 {
962 IMAGE_NT_HEADERS64 const *pHdrs = (IMAGE_NT_HEADERS64 const *)&u.au8[u.MzHdr.e_lfanew];
963 if ( pHdrs->Signature == IMAGE_NT_SIGNATURE
964 && pHdrs->FileHeader.Machine == IMAGE_FILE_MACHINE_AMD64
965 && pHdrs->FileHeader.SizeOfOptionalHeader == sizeof(pHdrs->OptionalHeader)
966 && pHdrs->FileHeader.NumberOfSections >= 10 /* the kernel has lots */
967 && (pHdrs->FileHeader.Characteristics & (IMAGE_FILE_EXECUTABLE_IMAGE | IMAGE_FILE_DLL))
968 == IMAGE_FILE_EXECUTABLE_IMAGE
969 && pHdrs->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR64_MAGIC
970 && pHdrs->OptionalHeader.NumberOfRvaAndSizes == IMAGE_NUMBEROF_DIRECTORY_ENTRIES
971 )
972 {
973 /* Find the MTE. */
974 RT_ZERO(uMte.v64);
975 uMte.v64.DllBase = KernelAddr.FlatPtr;
976 uMte.v64.EntryPoint = KernelAddr.FlatPtr + pHdrs->OptionalHeader.AddressOfEntryPoint;
977 uMte.v64.SizeOfImage = pHdrs->OptionalHeader.SizeOfImage;
978 DBGFADDRESS ScanAddr;
979 DBGFADDRESS HitAddr;
980 rc = DBGFR3MemScan(pUVM, 0 /*idCpu*/, DBGFR3AddrFromFlat(pUVM, &ScanAddr, uStart),
981 uEnd - uStart, 8 /*align*/, &uMte.v64.DllBase, 5 * sizeof(uint32_t), &HitAddr);
982 while (RT_SUCCESS(rc))
983 {
984 /* Read the start of the MTE and check some basic members. */
985 DBGFADDRESS MteAddr = HitAddr;
986 rc = DBGFR3MemRead(pUVM, 0 /*idCpu*/, DBGFR3AddrSub(&MteAddr, RT_OFFSETOF(NTMTE64, DllBase)),
987 &uMte2.v64, sizeof(uMte2.v64));
988 if ( RT_SUCCESS(rc)
989 && uMte2.v64.DllBase == uMte.v64.DllBase
990 && uMte2.v64.EntryPoint == uMte.v64.EntryPoint
991 && uMte2.v64.SizeOfImage == uMte.v64.SizeOfImage
992 && WINNT64_VALID_ADDRESS(uMte2.v64.InLoadOrderLinks.Flink)
993 && WINNT64_VALID_ADDRESS(uMte2.v64.BaseDllName.Buffer)
994 && WINNT64_VALID_ADDRESS(uMte2.v64.FullDllName.Buffer)
995 && uMte2.v64.BaseDllName.Length <= 128
996 && uMte2.v64.FullDllName.Length <= 260
997 )
998 {
999 /* Try read the base name and compare with known NT kernel names. */
1000 rc = DBGFR3MemRead(pUVM, 0 /*idCpu*/, DBGFR3AddrFromFlat(pUVM, &Addr, uMte2.v64.BaseDllName.Buffer),
1001 u.wsz, uMte2.v64.BaseDllName.Length);
1002 u.wsz[uMte2.v64.BaseDllName.Length / 2] = '\0';
1003 if ( RT_SUCCESS(rc)
1004 && ( !RTUtf16ICmp(u.wsz, g_wszKernelNames[0])
1005 /* || !RTUtf16ICmp(u.wsz, g_wszKernelNames[1]) */
1006 )
1007 )
1008 {
1009 /* Read the link entry of the previous entry in the list and check that its
1010 forward pointer points at the MTE we've found. */
1011 rc = DBGFR3MemRead(pUVM, 0 /*idCpu*/,
1012 DBGFR3AddrFromFlat(pUVM, &Addr, uMte2.v64.InLoadOrderLinks.Blink),
1013 &uMte3.v64, RT_SIZEOFMEMB(NTMTE64, InLoadOrderLinks));
1014 if ( RT_SUCCESS(rc)
1015 && uMte3.v64.InLoadOrderLinks.Flink == MteAddr.FlatPtr
1016 && WINNT64_VALID_ADDRESS(uMte3.v64.InLoadOrderLinks.Blink) )
1017 {
1018 Log(("DigWinNt: MteAddr=%RGv KernelAddr=%RGv SizeOfImage=%x &PsLoadedModuleList=%RGv (32-bit)\n",
1019 MteAddr.FlatPtr, KernelAddr.FlatPtr, uMte2.v64.SizeOfImage, Addr.FlatPtr));
1020 pThis->KernelAddr = KernelAddr;
1021 pThis->KernelMteAddr = MteAddr;
1022 pThis->PsLoadedModuleListAddr = Addr;
1023 pThis->f32Bit = false;
1024 pThis->fNt31 = false;
1025 return true;
1026 }
1027 }
1028 else if (RT_SUCCESS(rc))
1029 {
1030 Log2(("DigWinNt: Wrong module: MteAddr=%RGv ImageAddr=%RGv SizeOfImage=%#x '%ls'\n",
1031 MteAddr.FlatPtr, KernelAddr.FlatPtr, uMte2.v64.SizeOfImage, u.wsz));
1032 break; /* Not NT kernel */
1033 }
1034 }
1035
1036 /* next */
1037 DBGFR3AddrAdd(&HitAddr, 8);
1038 if (HitAddr.FlatPtr < uEnd)
1039 rc = DBGFR3MemScan(pUVM, 0 /*idCpu*/, &HitAddr, uEnd - HitAddr.FlatPtr,
1040 8 /*align*/, &uMte.v64.DllBase, 3 * sizeof(uint32_t), &HitAddr);
1041 else
1042 rc = VERR_DBGF_MEM_NOT_FOUND;
1043 }
1044 }
1045 }
1046 }
1047 }
1048 return false;
1049}
1050
1051
1052/**
1053 * @copydoc DBGFOSREG::pfnDestruct
1054 */
1055static DECLCALLBACK(void) dbgDiggerWinNtDestruct(PUVM pUVM, void *pvData)
1056{
1057 RT_NOREF2(pUVM, pvData);
1058}
1059
1060
1061/**
1062 * @copydoc DBGFOSREG::pfnConstruct
1063 */
1064static DECLCALLBACK(int) dbgDiggerWinNtConstruct(PUVM pUVM, void *pvData)
1065{
1066 RT_NOREF1(pUVM);
1067 PDBGDIGGERWINNT pThis = (PDBGDIGGERWINNT)pvData;
1068 pThis->fValid = false;
1069 pThis->f32Bit = false;
1070 pThis->enmVer = DBGDIGGERWINNTVER_UNKNOWN;
1071 return VINF_SUCCESS;
1072}
1073
1074
1075const DBGFOSREG g_DBGDiggerWinNt =
1076{
1077 /* .u32Magic = */ DBGFOSREG_MAGIC,
1078 /* .fFlags = */ 0,
1079 /* .cbData = */ sizeof(DBGDIGGERWINNT),
1080 /* .szName = */ "WinNT",
1081 /* .pfnConstruct = */ dbgDiggerWinNtConstruct,
1082 /* .pfnDestruct = */ dbgDiggerWinNtDestruct,
1083 /* .pfnProbe = */ dbgDiggerWinNtProbe,
1084 /* .pfnInit = */ dbgDiggerWinNtInit,
1085 /* .pfnRefresh = */ dbgDiggerWinNtRefresh,
1086 /* .pfnTerm = */ dbgDiggerWinNtTerm,
1087 /* .pfnQueryVersion = */ dbgDiggerWinNtQueryVersion,
1088 /* .pfnQueryInterface = */ dbgDiggerWinNtQueryInterface,
1089 /* .pfnStackUnwindAssist = */ dbgDiggerWinNtStackUnwindAssist,
1090 /* .u32EndMagic = */ DBGFOSREG_MAGIC
1091};
1092
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