1 | /* $Id: DBGPlugInWinNt.cpp 104433 2024-04-25 14:13:49Z vboxsync $ */
|
---|
2 | /** @file
|
---|
3 | * DBGPlugInWindows - Debugger and Guest OS Digger Plugin For Windows NT.
|
---|
4 | */
|
---|
5 |
|
---|
6 | /*
|
---|
7 | * Copyright (C) 2009-2023 Oracle and/or its affiliates.
|
---|
8 | *
|
---|
9 | * This file is part of VirtualBox base platform packages, as
|
---|
10 | * available from https://www.virtualbox.org.
|
---|
11 | *
|
---|
12 | * This program is free software; you can redistribute it and/or
|
---|
13 | * modify it under the terms of the GNU General Public License
|
---|
14 | * as published by the Free Software Foundation, in version 3 of the
|
---|
15 | * License.
|
---|
16 | *
|
---|
17 | * This program is distributed in the hope that it will be useful, but
|
---|
18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
|
---|
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
---|
20 | * General Public License for more details.
|
---|
21 | *
|
---|
22 | * You should have received a copy of the GNU General Public License
|
---|
23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
|
---|
24 | *
|
---|
25 | * SPDX-License-Identifier: GPL-3.0-only
|
---|
26 | */
|
---|
27 |
|
---|
28 |
|
---|
29 | /*********************************************************************************************************************************
|
---|
30 | * Header Files *
|
---|
31 | *********************************************************************************************************************************/
|
---|
32 | #define LOG_GROUP LOG_GROUP_DBGF /// @todo add new log group.
|
---|
33 | #include "DBGPlugIns.h"
|
---|
34 | #include <VBox/vmm/dbgf.h>
|
---|
35 | #include <VBox/vmm/cpumctx.h>
|
---|
36 | #include <VBox/vmm/mm.h>
|
---|
37 | #ifdef VBOX_DEBUGGER_WITH_WIN_DBG_PRINT_HOOKING
|
---|
38 | # include <VBox/vmm/vmapi.h>
|
---|
39 | # include <VBox/dis.h>
|
---|
40 | #endif
|
---|
41 | #include <VBox/vmm/vmmr3vtable.h>
|
---|
42 | #include <VBox/err.h>
|
---|
43 | #include <VBox/param.h>
|
---|
44 | #include <iprt/ctype.h>
|
---|
45 | #include <iprt/ldr.h>
|
---|
46 | #include <iprt/mem.h>
|
---|
47 | #include <iprt/path.h>
|
---|
48 | #include <iprt/stream.h>
|
---|
49 | #include <iprt/string.h>
|
---|
50 | #include <iprt/utf16.h>
|
---|
51 | #include <iprt/formats/pecoff.h>
|
---|
52 | #include <iprt/formats/mz.h>
|
---|
53 | #include <iprt/nt/nt-structures.h>
|
---|
54 |
|
---|
55 |
|
---|
56 | /*********************************************************************************************************************************
|
---|
57 | * Structures and Typedefs *
|
---|
58 | *********************************************************************************************************************************/
|
---|
59 |
|
---|
60 | /** @name Internal WinNT structures
|
---|
61 | * @{ */
|
---|
62 | /**
|
---|
63 | * PsLoadedModuleList entry for 32-bit NT aka LDR_DATA_TABLE_ENTRY.
|
---|
64 | * Tested with XP.
|
---|
65 | *
|
---|
66 | * See comments in NTMTE64.
|
---|
67 | */
|
---|
68 | typedef struct NTMTE32
|
---|
69 | {
|
---|
70 | struct
|
---|
71 | {
|
---|
72 | uint32_t Flink;
|
---|
73 | uint32_t Blink;
|
---|
74 | } InLoadOrderLinks,
|
---|
75 | InMemoryOrderModuleList,
|
---|
76 | InInitializationOrderModuleList;
|
---|
77 | uint32_t DllBase;
|
---|
78 | uint32_t EntryPoint;
|
---|
79 | /** @note This field is not a size in NT 3.1. It's NULL for images loaded by the
|
---|
80 | * boot loader, for other images it looks like some kind of pointer. */
|
---|
81 | uint32_t SizeOfImage;
|
---|
82 | struct
|
---|
83 | {
|
---|
84 | uint16_t Length;
|
---|
85 | uint16_t MaximumLength;
|
---|
86 | uint32_t Buffer;
|
---|
87 | } FullDllName,
|
---|
88 | BaseDllName;
|
---|
89 | uint32_t Flags; /**< NTMTE_F_XXX */
|
---|
90 | uint16_t LoadCount;
|
---|
91 | uint16_t TlsIndex;
|
---|
92 | /* ... there is more ... */
|
---|
93 | } NTMTE32;
|
---|
94 | typedef NTMTE32 *PNTMTE32;
|
---|
95 |
|
---|
96 | /**
|
---|
97 | * PsLoadedModuleList entry for 64-bit NT aka LDR_DATA_TABLE_ENTRY.
|
---|
98 | *
|
---|
99 | * Starting with XP it it's specialized for the kernel as KLDR_DATA_TABLE_ENTRY
|
---|
100 | * with compatible layout up to a point, the non-K version is used in user land.
|
---|
101 | * The Flags values probably differs a bit by now.
|
---|
102 | */
|
---|
103 | typedef struct NTMTE64
|
---|
104 | {
|
---|
105 | struct
|
---|
106 | {
|
---|
107 | uint64_t Flink;
|
---|
108 | uint64_t Blink;
|
---|
109 | } InLoadOrderLinks, /**< 0x00 */
|
---|
110 | InMemoryOrderModuleList, /**< 0x10 */
|
---|
111 | InInitializationOrderModuleList; /**< 0x20 */
|
---|
112 | uint64_t DllBase; /**< 0x30 */
|
---|
113 | uint64_t EntryPoint; /**< 0x38 */
|
---|
114 | uint32_t SizeOfImage; /**< 0x40 */
|
---|
115 | uint32_t Alignment; /**< 0x44 */
|
---|
116 | struct
|
---|
117 | {
|
---|
118 | uint16_t Length; /**< 0x48,0x58 */
|
---|
119 | uint16_t MaximumLength; /**< 0x4a,0x5a */
|
---|
120 | uint32_t Alignment; /**< 0x4c,0x5c */
|
---|
121 | uint64_t Buffer; /**< 0x50,0x60 */
|
---|
122 | } FullDllName, /**< 0x48 */
|
---|
123 | BaseDllName; /**< 0x58 */
|
---|
124 | uint32_t Flags; /**< 0x68 NTMTE_F_XXX */
|
---|
125 | uint16_t LoadCount; /**< 0x6c */
|
---|
126 | uint16_t TlsIndex; /**< 0x6e */
|
---|
127 | /* ... there is more ... */
|
---|
128 | } NTMTE64;
|
---|
129 | typedef NTMTE64 *PNTMTE64;
|
---|
130 |
|
---|
131 | #define NTMTE_F_FORCE_INTEGRITY 0x20 /* copy of IMAGE_DLLCHARACTERISTICS_FORCE_INTEGRITY */
|
---|
132 |
|
---|
133 | /** MTE union. */
|
---|
134 | typedef union NTMTE
|
---|
135 | {
|
---|
136 | NTMTE32 vX_32;
|
---|
137 | NTMTE64 vX_64;
|
---|
138 | } NTMTE;
|
---|
139 | typedef NTMTE *PNTMTE;
|
---|
140 |
|
---|
141 |
|
---|
142 | /**
|
---|
143 | * The essential bits of the KUSER_SHARED_DATA structure.
|
---|
144 | */
|
---|
145 | typedef struct NTKUSERSHAREDDATA
|
---|
146 | {
|
---|
147 | uint32_t TickCountLowDeprecated;
|
---|
148 | uint32_t TickCountMultiplier;
|
---|
149 | struct
|
---|
150 | {
|
---|
151 | uint32_t LowPart;
|
---|
152 | int32_t High1Time;
|
---|
153 | int32_t High2Time;
|
---|
154 |
|
---|
155 | } InterruptTime,
|
---|
156 | SystemTime,
|
---|
157 | TimeZoneBias;
|
---|
158 | uint16_t ImageNumberLow;
|
---|
159 | uint16_t ImageNumberHigh;
|
---|
160 | RTUTF16 NtSystemRoot[260];
|
---|
161 | uint32_t MaxStackTraceDepth;
|
---|
162 | uint32_t CryptoExponent;
|
---|
163 | uint32_t TimeZoneId;
|
---|
164 | uint32_t LargePageMinimum;
|
---|
165 | uint32_t Reserved2[6];
|
---|
166 | uint32_t NtBuildNumber;
|
---|
167 | uint32_t NtProductType;
|
---|
168 | uint8_t ProductTypeIsValid;
|
---|
169 | uint8_t abPadding[3];
|
---|
170 | uint32_t NtMajorVersion;
|
---|
171 | uint32_t NtMinorVersion;
|
---|
172 | /* uint8_t ProcessorFeatures[64];
|
---|
173 | ...
|
---|
174 | */
|
---|
175 | } NTKUSERSHAREDDATA;
|
---|
176 | typedef NTKUSERSHAREDDATA *PNTKUSERSHAREDDATA;
|
---|
177 |
|
---|
178 | /** KI_USER_SHARED_DATA for i386 */
|
---|
179 | #define NTKUSERSHAREDDATA_WINNT32 UINT32_C(0xffdf0000)
|
---|
180 | /** KI_USER_SHARED_DATA for AMD64 */
|
---|
181 | #define NTKUSERSHAREDDATA_WINNT64 UINT64_C(0xfffff78000000000)
|
---|
182 |
|
---|
183 | /** NTKUSERSHAREDDATA::NtProductType */
|
---|
184 | typedef enum NTPRODUCTTYPE
|
---|
185 | {
|
---|
186 | kNtProductType_Invalid = 0,
|
---|
187 | kNtProductType_WinNt = 1,
|
---|
188 | kNtProductType_LanManNt,
|
---|
189 | kNtProductType_Server
|
---|
190 | } NTPRODUCTTYPE;
|
---|
191 |
|
---|
192 |
|
---|
193 | /** NT image header union. */
|
---|
194 | typedef union NTHDRSU
|
---|
195 | {
|
---|
196 | IMAGE_NT_HEADERS32 vX_32;
|
---|
197 | IMAGE_NT_HEADERS64 vX_64;
|
---|
198 | } NTHDRS;
|
---|
199 | /** Pointer to NT image header union. */
|
---|
200 | typedef NTHDRS *PNTHDRS;
|
---|
201 | /** Pointer to const NT image header union. */
|
---|
202 | typedef NTHDRS const *PCNTHDRS;
|
---|
203 |
|
---|
204 |
|
---|
205 | /**
|
---|
206 | * NT KD version block.
|
---|
207 | */
|
---|
208 | typedef struct NTKDVERSIONBLOCK
|
---|
209 | {
|
---|
210 | uint16_t MajorVersion;
|
---|
211 | uint16_t MinorVersion;
|
---|
212 | uint8_t ProtocolVersion;
|
---|
213 | uint8_t KdSecondaryVersion;
|
---|
214 | uint16_t Flags;
|
---|
215 | uint16_t MachineType;
|
---|
216 | uint8_t MaxPacketType;
|
---|
217 | uint8_t MaxStateChange;
|
---|
218 | uint8_t MaxManipulate;
|
---|
219 | uint8_t Simulation;
|
---|
220 | uint16_t Unused;
|
---|
221 | uint64_t KernBase;
|
---|
222 | uint64_t PsLoadedModuleList;
|
---|
223 | uint64_t DebuggerDataList;
|
---|
224 | } NTKDVERSIONBLOCK;
|
---|
225 | /** Pointer to an NT KD version block. */
|
---|
226 | typedef NTKDVERSIONBLOCK *PNTKDVERSIONBLOCK;
|
---|
227 | /** Pointer to a const NT KD version block. */
|
---|
228 | typedef const NTKDVERSIONBLOCK *PCNTKDVERSIONBLOCK;
|
---|
229 |
|
---|
230 | /** @} */
|
---|
231 |
|
---|
232 |
|
---|
233 |
|
---|
234 | typedef enum DBGDIGGERWINNTVER
|
---|
235 | {
|
---|
236 | DBGDIGGERWINNTVER_UNKNOWN,
|
---|
237 | DBGDIGGERWINNTVER_3_1,
|
---|
238 | DBGDIGGERWINNTVER_3_5,
|
---|
239 | DBGDIGGERWINNTVER_4_0,
|
---|
240 | DBGDIGGERWINNTVER_5_0,
|
---|
241 | DBGDIGGERWINNTVER_5_1,
|
---|
242 | DBGDIGGERWINNTVER_6_0
|
---|
243 | } DBGDIGGERWINNTVER;
|
---|
244 |
|
---|
245 | /**
|
---|
246 | * WinNT guest OS digger instance data.
|
---|
247 | */
|
---|
248 | typedef struct DBGDIGGERWINNT
|
---|
249 | {
|
---|
250 | /** Whether the information is valid or not.
|
---|
251 | * (For fending off illegal interface method calls.) */
|
---|
252 | bool fValid;
|
---|
253 | /** 32-bit (true) or 64-bit (false) */
|
---|
254 | bool f32Bit;
|
---|
255 | /** Set if NT 3.1 was detected.
|
---|
256 | * This implies both Misc.VirtualSize and NTMTE32::SizeOfImage are zero. */
|
---|
257 | bool fNt31;
|
---|
258 |
|
---|
259 | /** The NT version. */
|
---|
260 | DBGDIGGERWINNTVER enmVer;
|
---|
261 | /** NTKUSERSHAREDDATA::NtProductType */
|
---|
262 | NTPRODUCTTYPE NtProductType;
|
---|
263 | /** NTKUSERSHAREDDATA::NtMajorVersion */
|
---|
264 | uint32_t NtMajorVersion;
|
---|
265 | /** NTKUSERSHAREDDATA::NtMinorVersion */
|
---|
266 | uint32_t NtMinorVersion;
|
---|
267 | /** NTKUSERSHAREDDATA::NtBuildNumber */
|
---|
268 | uint32_t NtBuildNumber;
|
---|
269 |
|
---|
270 | /** The address of the ntoskrnl.exe image. */
|
---|
271 | DBGFADDRESS KernelAddr;
|
---|
272 | /** The address of the ntoskrnl.exe module table entry. */
|
---|
273 | DBGFADDRESS KernelMteAddr;
|
---|
274 | /** The address of PsLoadedModuleList. */
|
---|
275 | DBGFADDRESS PsLoadedModuleListAddr;
|
---|
276 |
|
---|
277 | /** Array of detected KPCR addresses for each vCPU. */
|
---|
278 | PDBGFADDRESS paKpcrAddr;
|
---|
279 | /** Array of detected KPCRB addresses for each vCPU. */
|
---|
280 | PDBGFADDRESS paKpcrbAddr;
|
---|
281 |
|
---|
282 | /** The Windows NT specifics interface. */
|
---|
283 | DBGFOSIWINNT IWinNt;
|
---|
284 |
|
---|
285 | #ifdef VBOX_DEBUGGER_WITH_WIN_DBG_PRINT_HOOKING
|
---|
286 | /** Breakpoint owner handle for the DbgPrint/vDbgPrint{,Ex}... interception. */
|
---|
287 | DBGFBPOWNER hBpOwnerDbgPrint;
|
---|
288 | /** Breakpoint handle for the DbgPrint/vDbgPrint{,Ex}... interception. */
|
---|
289 | DBGFBP hBpDbgPrint;
|
---|
290 | #endif
|
---|
291 | } DBGDIGGERWINNT;
|
---|
292 | /** Pointer to the linux guest OS digger instance data. */
|
---|
293 | typedef DBGDIGGERWINNT *PDBGDIGGERWINNT;
|
---|
294 |
|
---|
295 |
|
---|
296 | /**
|
---|
297 | * The WinNT digger's loader reader instance data.
|
---|
298 | */
|
---|
299 | typedef struct DBGDIGGERWINNTRDR
|
---|
300 | {
|
---|
301 | /** The VM handle (referenced). */
|
---|
302 | PUVM pUVM;
|
---|
303 | /** The image base. */
|
---|
304 | DBGFADDRESS ImageAddr;
|
---|
305 | /** The image size. */
|
---|
306 | uint32_t cbImage;
|
---|
307 | /** The file offset of the SizeOfImage field in the optional header if it
|
---|
308 | * needs patching, otherwise set to UINT32_MAX. */
|
---|
309 | uint32_t offSizeOfImage;
|
---|
310 | /** The correct image size. */
|
---|
311 | uint32_t cbCorrectImageSize;
|
---|
312 | /** Number of entries in the aMappings table. */
|
---|
313 | uint32_t cMappings;
|
---|
314 | /** Mapping hint. */
|
---|
315 | uint32_t iHint;
|
---|
316 | /** Mapping file offset to memory offsets, ordered by file offset. */
|
---|
317 | struct
|
---|
318 | {
|
---|
319 | /** The file offset. */
|
---|
320 | uint32_t offFile;
|
---|
321 | /** The size of this mapping. */
|
---|
322 | uint32_t cbMem;
|
---|
323 | /** The offset to the memory from the start of the image. */
|
---|
324 | uint32_t offMem;
|
---|
325 | } aMappings[1];
|
---|
326 | } DBGDIGGERWINNTRDR;
|
---|
327 | /** Pointer a WinNT loader reader instance data. */
|
---|
328 | typedef DBGDIGGERWINNTRDR *PDBGDIGGERWINNTRDR;
|
---|
329 |
|
---|
330 |
|
---|
331 | /*********************************************************************************************************************************
|
---|
332 | * Defined Constants And Macros *
|
---|
333 | *********************************************************************************************************************************/
|
---|
334 | /** Validates a 32-bit Windows NT kernel address */
|
---|
335 | #define WINNT32_VALID_ADDRESS(Addr) ((Addr) > UINT32_C(0x80000000) && (Addr) < UINT32_C(0xfffff000))
|
---|
336 | /** Validates a 64-bit Windows NT kernel address */
|
---|
337 | #define WINNT64_VALID_ADDRESS(Addr) ((Addr) > UINT64_C(0xffff800000000000) && (Addr) < UINT64_C(0xfffffffffffff000))
|
---|
338 | /** Validates a kernel address. */
|
---|
339 | #define WINNT_VALID_ADDRESS(pThis, Addr) ((pThis)->f32Bit ? WINNT32_VALID_ADDRESS(Addr) : WINNT64_VALID_ADDRESS(Addr))
|
---|
340 | /** Versioned and bitness wrapper. */
|
---|
341 | #define WINNT_UNION(pThis, pUnion, Member) ((pThis)->f32Bit ? (pUnion)->vX_32. Member : (pUnion)->vX_64. Member )
|
---|
342 |
|
---|
343 | /** The length (in chars) of the kernel file name (no path). */
|
---|
344 | #define WINNT_KERNEL_BASE_NAME_LEN 12
|
---|
345 |
|
---|
346 | /** WindowsNT on little endian ASCII systems. */
|
---|
347 | #define DIG_WINNT_MOD_TAG UINT64_C(0x54696e646f774e54)
|
---|
348 |
|
---|
349 |
|
---|
350 | /*********************************************************************************************************************************
|
---|
351 | * Internal Functions *
|
---|
352 | *********************************************************************************************************************************/
|
---|
353 | static DECLCALLBACK(int) dbgDiggerWinNtInit(PUVM pUVM, PCVMMR3VTABLE pVMM, void *pvData);
|
---|
354 |
|
---|
355 |
|
---|
356 | /*********************************************************************************************************************************
|
---|
357 | * Global Variables *
|
---|
358 | *********************************************************************************************************************************/
|
---|
359 | /** Kernel names. */
|
---|
360 | static const RTUTF16 g_wszKernelNames[][WINNT_KERNEL_BASE_NAME_LEN + 1] =
|
---|
361 | {
|
---|
362 | { 'n', 't', 'o', 's', 'k', 'r', 'n', 'l', '.', 'e', 'x', 'e' }
|
---|
363 | };
|
---|
364 |
|
---|
365 |
|
---|
366 | #ifdef VBOX_DEBUGGER_WITH_WIN_DBG_PRINT_HOOKING
|
---|
367 | /**
|
---|
368 | * Queries the string from guest memory with the pointer in the given register, sanitizing it.
|
---|
369 | *
|
---|
370 | * @returns VBox status code.
|
---|
371 | * @param pUVM The user mode VM handle.
|
---|
372 | * @param idCpu The CPU ID.
|
---|
373 | * @param enmReg The register to query the string pointer from.
|
---|
374 | * @param pszBuf Where to store the sanitized string.
|
---|
375 | * @param cbBuf Size of the buffer in number of bytes.
|
---|
376 | */
|
---|
377 | static int dbgDiggerWinNtDbgPrintQueryStringFromReg(PUVM pUVM, VMCPUID idCpu, DBGFREG enmReg, char *pszBuf, size_t cbBuf)
|
---|
378 | {
|
---|
379 | uint64_t u64RegPtr = 0;
|
---|
380 | int rc = DBGFR3RegCpuQueryU64(pUVM, idCpu, enmReg, &u64RegPtr);
|
---|
381 | if ( rc == VINF_SUCCESS
|
---|
382 | || rc == VINF_DBGF_ZERO_EXTENDED_REGISTER) /* Being strict about what we expect here. */
|
---|
383 | {
|
---|
384 | DBGFADDRESS AddrStr;
|
---|
385 | DBGFR3AddrFromFlat(pUVM, &AddrStr, u64RegPtr);
|
---|
386 | rc = DBGFR3MemRead(pUVM, idCpu, &AddrStr, pszBuf, cbBuf);
|
---|
387 | if (RT_SUCCESS(rc))
|
---|
388 | {
|
---|
389 | /* Check that there is a zero terminator and purge invalid encoding (expecting UTF-8 here). */
|
---|
390 | size_t idx = 0;
|
---|
391 | for (idx = 0; idx < cbBuf; idx++)
|
---|
392 | if (pszBuf[idx] == '\0')
|
---|
393 | break;
|
---|
394 |
|
---|
395 | if (idx == cbBuf)
|
---|
396 | pszBuf[cbBuf - 1] = '\0'; /* Force terminator, truncating the string. */
|
---|
397 | else
|
---|
398 | memset(&pszBuf[idx], 0, cbBuf - idx); /* Clear everything afterwards. */
|
---|
399 |
|
---|
400 | /* Purge the string encoding. */
|
---|
401 | RTStrPurgeEncoding(pszBuf);
|
---|
402 | }
|
---|
403 | }
|
---|
404 | else if (RT_SUCCESS(rc))
|
---|
405 | rc = VERR_INVALID_STATE;
|
---|
406 |
|
---|
407 | return rc;
|
---|
408 | }
|
---|
409 |
|
---|
410 |
|
---|
411 | /**
|
---|
412 | * @copydoc{FNDBGFBPHIT, Breakpoint callback for the DbgPrint interception.}
|
---|
413 | */
|
---|
414 | static DECLCALLBACK(VBOXSTRICTRC) dbgDiggerWinNtDbgPrintHit(PVM pVM, VMCPUID idCpu, void *pvUserBp, DBGFBP hBp, PCDBGFBPPUB pBpPub, uint16_t fFlags)
|
---|
415 | {
|
---|
416 | RT_NOREF(hBp, pBpPub, fFlags);
|
---|
417 | PDBGDIGGERWINNT pThis = (PDBGDIGGERWINNT)pvUserBp;
|
---|
418 | PUVM pUVM = VMR3GetUVM(pVM);
|
---|
419 |
|
---|
420 | /*
|
---|
421 | * The worker prototype looks like the following:
|
---|
422 | * vDbgPrintExWorker(PCCH Prefix, ULONG ComponentId, ULONG Level, PCCH Format, va_list arglist, BOOL fUnknown)
|
---|
423 | *
|
---|
424 | * Depending on the bitness the parameters are grabbed from the appropriate registers and stack locations.
|
---|
425 | * For amd64 reading the following is recommended:
|
---|
426 | * https://docs.microsoft.com/en-us/cpp/build/x64-calling-convention?view=vs-2019
|
---|
427 | * https://docs.microsoft.com/en-us/cpp/build/prolog-and-epilog?view=vs-2019
|
---|
428 | * https://docs.microsoft.com/en-us/cpp/build/stack-usage?view=vs-2019
|
---|
429 | *
|
---|
430 | * @todo 32bit
|
---|
431 | */
|
---|
432 | int rc = VINF_SUCCESS;
|
---|
433 | uint32_t idComponent = 0;
|
---|
434 | uint32_t iLevel = 0;
|
---|
435 | char aszPrefixStr[128]; /* Restricted size. */
|
---|
436 | char aszFmtStr[_1K]; /* Restricted size. */
|
---|
437 | DBGFADDRESS AddrVaList;
|
---|
438 | if (!pThis->f32Bit)
|
---|
439 | {
|
---|
440 | /*
|
---|
441 | * Grab the prefix, component, level, format string pointer from the registers and the argument list from the
|
---|
442 | * stack (mind the home area for the register arguments).
|
---|
443 | */
|
---|
444 | rc = dbgDiggerWinNtDbgPrintQueryStringFromReg(pUVM, idCpu, DBGFREG_RCX, &aszPrefixStr[0], sizeof(aszPrefixStr));
|
---|
445 | if (RT_SUCCESS(rc))
|
---|
446 | rc = DBGFR3RegCpuQueryU32(pUVM, idCpu, DBGFREG_RDX, &idComponent);
|
---|
447 | if (RT_SUCCESS(rc))
|
---|
448 | rc = DBGFR3RegCpuQueryU32(pUVM, idCpu, DBGFREG_R8, &iLevel);
|
---|
449 | if (RT_SUCCESS(rc))
|
---|
450 | rc = dbgDiggerWinNtDbgPrintQueryStringFromReg(pUVM, idCpu, DBGFREG_R9, &aszFmtStr[0], sizeof(aszFmtStr));
|
---|
451 | if (RT_SUCCESS(rc))
|
---|
452 | {
|
---|
453 | /* Grabbing the pointer to the va list. The stack layout when we are here looks like (each entry is 64bit):
|
---|
454 | * +-------------+
|
---|
455 | * | ... |
|
---|
456 | * | VA list ptr |
|
---|
457 | * | (arg3/r9) |
|
---|
458 | * | (arg2/r8) |
|
---|
459 | * | (arg1/rdx) |
|
---|
460 | * | (arg0/rcx) |
|
---|
461 | * | return RIP |
|
---|
462 | * +-------------+ <- RSP
|
---|
463 | */
|
---|
464 | uint64_t uRegRsp = 0;
|
---|
465 | rc = DBGFR3RegCpuQueryU64(pUVM, idCpu, DBGFREG_RSP, &uRegRsp);
|
---|
466 | if (rc == VINF_SUCCESS)
|
---|
467 | {
|
---|
468 | DBGFADDRESS AddrVaListPtr;
|
---|
469 | RTGCUINTPTR GCPtrVaList = 0;
|
---|
470 |
|
---|
471 | DBGFR3AddrFromFlat(pUVM, &AddrVaListPtr, uRegRsp + 5 * sizeof(RTGCUINTPTR));
|
---|
472 | rc = DBGFR3MemRead(pUVM, idCpu, &AddrVaListPtr, &GCPtrVaList, sizeof(GCPtrVaList));
|
---|
473 | if (RT_SUCCESS(rc))
|
---|
474 | DBGFR3AddrFromFlat(pUVM, &AddrVaList, GCPtrVaList);
|
---|
475 | }
|
---|
476 | else
|
---|
477 | rc = VERR_INVALID_STATE;
|
---|
478 | }
|
---|
479 | }
|
---|
480 | else
|
---|
481 | rc = VERR_NOT_IMPLEMENTED; /** @todo */
|
---|
482 |
|
---|
483 | if (RT_SUCCESS(rc))
|
---|
484 | {
|
---|
485 | LogRel(("DigWinNt/DbgPrint: Queried arguments %s %#x %u %s %RGv\n", &aszPrefixStr[0], idComponent, iLevel, &aszFmtStr[0], AddrVaList.FlatPtr));
|
---|
486 | /** @todo Continue here. */
|
---|
487 | }
|
---|
488 | else
|
---|
489 | LogRel(("DigWinNt/DbgPrint: Failed to query all arguments with rc=%Rrc\n", rc));
|
---|
490 |
|
---|
491 | return VINF_SUCCESS;
|
---|
492 | }
|
---|
493 |
|
---|
494 |
|
---|
495 | /**
|
---|
496 | * Disassembles the given instruction and checks whether it is a call with a fixed address.
|
---|
497 | *
|
---|
498 | * @returns Flag whether the insturction at the given address is a call.
|
---|
499 | * @param pThis The instance data.
|
---|
500 | * @param pUVM The user mode VM handle.
|
---|
501 | * @param pAddrInsn Guest address of the instruction.
|
---|
502 | * @param pAddrCall Where to store the destination if the instruction is a call.
|
---|
503 | */
|
---|
504 | static bool dbgDiggerWinNtDbgPrintWrapperInsnIsCall(PDBGDIGGERWINNT pThis, PUVM pUVM, PCDBGFADDRESS pAddrInsn, PDBGFADDRESS pAddrCall)
|
---|
505 | {
|
---|
506 | DISSTATE DisState;
|
---|
507 | RT_ZERO(DisState);
|
---|
508 |
|
---|
509 | /* Prefetch the instruction. */
|
---|
510 | uint8_t abInstr[32];
|
---|
511 | int rc = DBGFR3MemRead(pUVM, 0 /*idCpu*/, pAddrInsn, &abInstr[0], sizeof(abInstr));
|
---|
512 | if (RT_SUCCESS(rc))
|
---|
513 | {
|
---|
514 | uint32_t cbInsn = 0;
|
---|
515 | rc = DISInstr(&abInstr[0], pThis->f32Bit ? DISCPUMODE_32BIT : DISCPUMODE_64BIT, &DisState, &cbInsn);
|
---|
516 | if ( RT_SUCCESS(rc)
|
---|
517 | && DisState.pCurInstr->uOpcode == OP_CALL
|
---|
518 | && DisState.Param1.fUse & DISUSE_IMMEDIATE)
|
---|
519 | {
|
---|
520 | if (DisState.Param1.fUse & (DISUSE_IMMEDIATE32 | DISUSE_IMMEDIATE64))
|
---|
521 | DBGFR3AddrFromFlat(pUVM, pAddrCall, DisState.Param1.uValue);
|
---|
522 | else if (DisState.Param1.fUse & (DISUSE_IMMEDIATE32_REL | DISUSE_IMMEDIATE64_REL))
|
---|
523 | {
|
---|
524 | *pAddrCall = *pAddrInsn;
|
---|
525 | DBGFR3AddrAdd(pAddrCall, DisState.Param1.uValue + cbInsn);
|
---|
526 | }
|
---|
527 |
|
---|
528 | return true;
|
---|
529 | }
|
---|
530 | }
|
---|
531 |
|
---|
532 | return false;
|
---|
533 | }
|
---|
534 |
|
---|
535 |
|
---|
536 | /**
|
---|
537 | * Tries to find the single call instruction of the DbgPrint/etc. worker in the given control flow graph
|
---|
538 | * (single basic block assumed).
|
---|
539 | *
|
---|
540 | * @returns VBox status code.
|
---|
541 | * @param pThis The instance data.
|
---|
542 | * @param pUVM The user mode VM handle.
|
---|
543 | * @param hFlow The control flow graph handle.
|
---|
544 | * @param pAddr Where to store the worker address on success.
|
---|
545 | */
|
---|
546 | static int dbgDiggerWinNtDbgPrintResolveWorker(PDBGDIGGERWINNT pThis, PUVM pUVM, DBGFFLOW hFlow, PDBGFADDRESS pAddr)
|
---|
547 | {
|
---|
548 | DBGFFLOWBB hBb;
|
---|
549 | int rc = DBGFR3FlowQueryStartBb(hFlow, &hBb);
|
---|
550 | if (RT_SUCCESS(rc))
|
---|
551 | {
|
---|
552 | bool fCallFound = false;
|
---|
553 |
|
---|
554 | for (uint32_t i = 0; i < DBGFR3FlowBbGetInstrCount(hBb) && RT_SUCCESS(rc); i++)
|
---|
555 | {
|
---|
556 | DBGFADDRESS AddrInsn;
|
---|
557 | uint32_t cbInsn;
|
---|
558 | rc = DBGFR3FlowBbQueryInstr(hBb, i, &AddrInsn, &cbInsn, NULL);
|
---|
559 | if (RT_SUCCESS(rc))
|
---|
560 | {
|
---|
561 | DBGFADDRESS AddrCall;
|
---|
562 | if (dbgDiggerWinNtDbgPrintWrapperInsnIsCall(pThis, pUVM, &AddrInsn, &AddrCall))
|
---|
563 | {
|
---|
564 | if (!fCallFound)
|
---|
565 | {
|
---|
566 | *pAddr = AddrCall;
|
---|
567 | fCallFound = true;
|
---|
568 | }
|
---|
569 | else
|
---|
570 | {
|
---|
571 | LogRel(("DigWinNt/DbgPrint: nt!vDbgPrintEx contains multiple call instructions!\n"));
|
---|
572 | rc = VERR_ALREADY_EXISTS;
|
---|
573 | }
|
---|
574 | }
|
---|
575 | }
|
---|
576 | }
|
---|
577 |
|
---|
578 | DBGFR3FlowBbRelease(hBb);
|
---|
579 | }
|
---|
580 |
|
---|
581 | return rc;
|
---|
582 | }
|
---|
583 |
|
---|
584 |
|
---|
585 | /**
|
---|
586 | * Tries to resolve and hook into the worker for all the DbgPrint like wrappers to be able
|
---|
587 | * to gather debug information from the system.
|
---|
588 | *
|
---|
589 | * @param pThis The instance data.
|
---|
590 | * @param pUVM The user mode VM handle.
|
---|
591 | */
|
---|
592 | static void dbgDiggerWinNtDbgPrintHook(PDBGDIGGERWINNT pThis, PUVM pUVM)
|
---|
593 | {
|
---|
594 | /*
|
---|
595 | * This is a multi step process:
|
---|
596 | * 1. Try to resolve the address of vDbgPrint() (available since XP).
|
---|
597 | * 2. Create a control flow graph from the code and verify the following assumptions:
|
---|
598 | * 1. Only a single basic block.
|
---|
599 | * 2. Just one call instruction.
|
---|
600 | * @todo More?
|
---|
601 | * 3. Get the address from the called worker
|
---|
602 | * 4. Set a hardware breakpoint with our callback.
|
---|
603 | */
|
---|
604 | RTDBGAS hAs = DBGFR3AsResolveAndRetain(pUVM, DBGF_AS_KERNEL);
|
---|
605 | if (hAs != NIL_RTDBGAS)
|
---|
606 | {
|
---|
607 | RTDBGSYMBOL SymInfo;
|
---|
608 | int rc = RTDbgAsSymbolByName(hAs, "nt!vDbgPrintEx", &SymInfo, NULL /*phMod*/);
|
---|
609 | if (RT_SUCCESS(rc))
|
---|
610 | {
|
---|
611 | DBGFADDRESS Addr;
|
---|
612 | DBGFR3AddrFromFlat(pUVM, &Addr, (RTGCPTR)SymInfo.Value);
|
---|
613 |
|
---|
614 | LogRel(("DigWinNt/DbgPrint: nt!vDbgPrintEx resolved to %RGv\n", SymInfo.Value));
|
---|
615 |
|
---|
616 | DBGFFLOW hCfg;
|
---|
617 | rc = DBGFR3FlowCreate(pUVM, 0 /*idCpu*/, &Addr, 512 /*cbDisasmMax*/,
|
---|
618 | 0 /*fFlagsFlow*/, DBGF_DISAS_FLAGS_UNPATCHED_BYTES | DBGF_DISAS_FLAGS_ANNOTATE_PATCHED | DBGF_DISAS_FLAGS_DEFAULT_MODE,
|
---|
619 | &hCfg);
|
---|
620 | if (RT_SUCCESS(rc))
|
---|
621 | {
|
---|
622 | /* Verify assumptions. */
|
---|
623 | if (DBGFR3FlowGetBbCount(hCfg) == 1)
|
---|
624 | {
|
---|
625 | rc = dbgDiggerWinNtDbgPrintResolveWorker(pThis, pUVM, hCfg, &Addr);
|
---|
626 | if (RT_SUCCESS(rc))
|
---|
627 | {
|
---|
628 | /* Try to hook the worker. */
|
---|
629 | LogRel(("DigWinNt/DbgPrint: Worker for nt!vDbgPrintEx resolved to %RGv\n", Addr.FlatPtr));
|
---|
630 | rc = DBGFR3BpOwnerCreate(pUVM, dbgDiggerWinNtDbgPrintHit, NULL /*pfnBpIoHit*/, &pThis->hBpOwnerDbgPrint);
|
---|
631 | if (RT_SUCCESS(rc))
|
---|
632 | {
|
---|
633 | rc = DBGFR3BpSetInt3Ex(pUVM, pThis->hBpOwnerDbgPrint, pThis, 0 /*idCpu*/, &Addr, DBGF_BP_F_DEFAULT,
|
---|
634 | 0 /*iHitTrigger*/, 0 /*iHitDisable*/, &pThis->hBpDbgPrint);
|
---|
635 | if (RT_SUCCESS(rc))
|
---|
636 | LogRel(("DigWinNt/DbgPrint: Hooked nt!vDbgPrintEx worker hBp=%#x\n", pThis->hBpDbgPrint));
|
---|
637 | else
|
---|
638 | {
|
---|
639 | LogRel(("DigWinNt/DbgPrint: Setting hardware breakpoint for nt!vDbgPrintEx worker failed with rc=%Rrc\n", rc));
|
---|
640 | int rc2 = DBGFR3BpOwnerDestroy(pUVM, pThis->hBpOwnerDbgPrint);
|
---|
641 | pThis->hBpOwnerDbgPrint = NIL_DBGFBPOWNER;
|
---|
642 | AssertRC(rc2);
|
---|
643 | }
|
---|
644 | }
|
---|
645 | }
|
---|
646 | /* else LogRel() already done */
|
---|
647 | }
|
---|
648 | else
|
---|
649 | LogRel(("DigWinNt/DbgPrint: Control flow graph for nt!vDbgPrintEx has more than one basic block (%u)\n",
|
---|
650 | DBGFR3FlowGetBbCount(hCfg)));
|
---|
651 |
|
---|
652 | DBGFR3FlowRelease(hCfg);
|
---|
653 | }
|
---|
654 | else
|
---|
655 | LogRel(("DigWinNt/DbgPrint: Failed to create control flow graph from nt!vDbgPrintEx rc=%Rrc\n", rc));
|
---|
656 | }
|
---|
657 | else
|
---|
658 | LogRel(("DigWinNt/DbgPrint: Failed to resolve nt!vDbgPrintEx -> rc=%Rrc\n", rc));
|
---|
659 | RTDbgAsRelease(hAs);
|
---|
660 | }
|
---|
661 | else
|
---|
662 | LogRel(("DigWinNt/DbgPrint: Failed to resolve kernel address space handle\n"));
|
---|
663 | }
|
---|
664 | #endif
|
---|
665 |
|
---|
666 | /**
|
---|
667 | * Tries to resolve the KPCR and KPCRB addresses for each vCPU.
|
---|
668 | *
|
---|
669 | * @param pThis The instance data.
|
---|
670 | * @param pUVM The user mode VM handle.
|
---|
671 | * @param pVMM The VMM function table.
|
---|
672 | */
|
---|
673 | static void dbgDiggerWinNtResolveKpcr(PDBGDIGGERWINNT pThis, PUVM pUVM, PCVMMR3VTABLE pVMM)
|
---|
674 | {
|
---|
675 | /*
|
---|
676 | * Getting at the KPCR and KPCRB is explained here:
|
---|
677 | * https://www.geoffchappell.com/studies/windows/km/ntoskrnl/structs/kpcr.htm
|
---|
678 | * Together with the available offsets from:
|
---|
679 | * https://github.com/tpn/winsdk-10/blob/master/Include/10.0.16299.0/shared/ksamd64.inc#L883
|
---|
680 | * we can verify that the found addresses are valid by cross checking that the GDTR and self reference
|
---|
681 | * match what we expect.
|
---|
682 | */
|
---|
683 | VMCPUID cCpus = pVMM->pfnDBGFR3CpuGetCount(pUVM);
|
---|
684 | pThis->paKpcrAddr = (PDBGFADDRESS)RTMemAllocZ(cCpus * 2 * sizeof(DBGFADDRESS));
|
---|
685 | if (RT_LIKELY(pThis->paKpcrAddr))
|
---|
686 | {
|
---|
687 | pThis->paKpcrbAddr = &pThis->paKpcrAddr[cCpus];
|
---|
688 |
|
---|
689 | /* Work each CPU, unexpected values in each CPU make the whole thing fail to play safe. */
|
---|
690 | int rc = VINF_SUCCESS;
|
---|
691 | for (VMCPUID idCpu = 0; (idCpu < cCpus) && RT_SUCCESS(rc); idCpu++)
|
---|
692 | {
|
---|
693 | PDBGFADDRESS pKpcrAddr = &pThis->paKpcrAddr[idCpu];
|
---|
694 | PDBGFADDRESS pKpcrbAddr = &pThis->paKpcrbAddr[idCpu];
|
---|
695 |
|
---|
696 | if (pThis->f32Bit)
|
---|
697 | {
|
---|
698 | /* Read FS base */
|
---|
699 | uint32_t GCPtrKpcrBase = 0;
|
---|
700 |
|
---|
701 | rc = pVMM->pfnDBGFR3RegCpuQueryU32(pUVM, idCpu, DBGFREG_FS_BASE, &GCPtrKpcrBase);
|
---|
702 | if ( RT_SUCCESS(rc)
|
---|
703 | && WINNT32_VALID_ADDRESS(GCPtrKpcrBase))
|
---|
704 | {
|
---|
705 | /*
|
---|
706 | * Read the start of the KPCR (@todo Probably move this to a global header)
|
---|
707 | * and verify its content.
|
---|
708 | */
|
---|
709 | struct
|
---|
710 | {
|
---|
711 | uint8_t abOoi[28]; /* Out of interest */
|
---|
712 | uint32_t GCPtrSelf;
|
---|
713 | uint32_t GCPtrCurrentPrcb;
|
---|
714 | uint32_t u32Irql;
|
---|
715 | uint32_t u32Iir;
|
---|
716 | uint32_t u32IirActive;
|
---|
717 | uint32_t u32Idr;
|
---|
718 | uint32_t GCPtrKdVersionBlock;
|
---|
719 | uint32_t GCPtrIdt;
|
---|
720 | uint32_t GCPtrGdt;
|
---|
721 | uint32_t GCPtrTss;
|
---|
722 | } Kpcr;
|
---|
723 |
|
---|
724 | LogFlow(("DigWinNt/KPCR[%u]: GS Base %RGv\n", idCpu, GCPtrKpcrBase));
|
---|
725 | pVMM->pfnDBGFR3AddrFromFlat(pUVM, pKpcrAddr, GCPtrKpcrBase);
|
---|
726 |
|
---|
727 | rc = pVMM->pfnDBGFR3MemRead(pUVM, idCpu, pKpcrAddr, &Kpcr, sizeof(Kpcr));
|
---|
728 | if (RT_SUCCESS(rc))
|
---|
729 | {
|
---|
730 | uint32_t GCPtrGdt = 0;
|
---|
731 | uint32_t GCPtrIdt = 0;
|
---|
732 |
|
---|
733 | rc = pVMM->pfnDBGFR3RegCpuQueryU32(pUVM, idCpu, DBGFREG_GDTR_BASE, &GCPtrGdt);
|
---|
734 | if (RT_SUCCESS(rc))
|
---|
735 | rc = pVMM->pfnDBGFR3RegCpuQueryU32(pUVM, idCpu, DBGFREG_IDTR_BASE, &GCPtrIdt);
|
---|
736 | if (RT_SUCCESS(rc))
|
---|
737 | {
|
---|
738 | if ( Kpcr.GCPtrGdt == GCPtrGdt
|
---|
739 | && Kpcr.GCPtrIdt == GCPtrIdt
|
---|
740 | && Kpcr.GCPtrSelf == pKpcrAddr->FlatPtr)
|
---|
741 | {
|
---|
742 | pVMM->pfnDBGFR3AddrFromFlat(pUVM, pKpcrbAddr, Kpcr.GCPtrCurrentPrcb);
|
---|
743 | LogRel(("DigWinNt/KPCR[%u]: KPCR=%RGv KPCRB=%RGv\n", idCpu, pKpcrAddr->FlatPtr, pKpcrbAddr->FlatPtr));
|
---|
744 |
|
---|
745 | /*
|
---|
746 | * Try to extract the NT build number from the KD version block if it exists,
|
---|
747 | * the shared user data might have set it to 0.
|
---|
748 | *
|
---|
749 | * @todo We can use this method to get at the kern base and loaded module list if the other detection
|
---|
750 | * method fails (seen with Windows 10 x86).
|
---|
751 | * @todo On 32bit Windows the debugger data list is also always accessible this way contrary to
|
---|
752 | * the amd64 version where it is only available with "/debug on" set.
|
---|
753 | */
|
---|
754 | if (!pThis->NtBuildNumber)
|
---|
755 | {
|
---|
756 | NTKDVERSIONBLOCK KdVersBlock;
|
---|
757 | DBGFADDRESS AddrKdVersBlock;
|
---|
758 |
|
---|
759 | pVMM->pfnDBGFR3AddrFromFlat(pUVM, &AddrKdVersBlock, Kpcr.GCPtrKdVersionBlock);
|
---|
760 | rc = pVMM->pfnDBGFR3MemRead(pUVM, idCpu, &AddrKdVersBlock, &KdVersBlock, sizeof(KdVersBlock));
|
---|
761 | if (RT_SUCCESS(rc))
|
---|
762 | pThis->NtBuildNumber = KdVersBlock.MinorVersion;
|
---|
763 | }
|
---|
764 | }
|
---|
765 | else
|
---|
766 | LogRel(("DigWinNt/KPCR[%u]: KPCR validation error GDT=(%RGv vs %RGv) KPCR=(%RGv vs %RGv)\n", idCpu,
|
---|
767 | Kpcr.GCPtrGdt, GCPtrGdt, Kpcr.GCPtrSelf, pKpcrAddr->FlatPtr));
|
---|
768 | }
|
---|
769 | else
|
---|
770 | LogRel(("DigWinNt/KPCR[%u]: Getting GDT or IDT base register failed with %Rrc\n", idCpu, rc));
|
---|
771 | }
|
---|
772 | }
|
---|
773 | else
|
---|
774 | LogRel(("DigWinNt/KPCR[%u]: Getting FS base register failed with %Rrc (%RGv)\n", idCpu, rc, GCPtrKpcrBase));
|
---|
775 | }
|
---|
776 | else
|
---|
777 | {
|
---|
778 | /* Read GS base which points to the base of the KPCR for each CPU. */
|
---|
779 | RTGCUINTPTR GCPtrTmp = 0;
|
---|
780 | rc = pVMM->pfnDBGFR3RegCpuQueryU64(pUVM, idCpu, DBGFREG_GS_BASE, &GCPtrTmp);
|
---|
781 | if ( RT_SUCCESS(rc)
|
---|
782 | && !WINNT64_VALID_ADDRESS(GCPtrTmp))
|
---|
783 | {
|
---|
784 | /*
|
---|
785 | * Could be a user address when we stopped the VM right in usermode,
|
---|
786 | * read the GS kernel base MSR instead.
|
---|
787 | */
|
---|
788 | rc = pVMM->pfnDBGFR3RegCpuQueryU64(pUVM, idCpu, DBGFREG_MSR_K8_KERNEL_GS_BASE, &GCPtrTmp);
|
---|
789 | }
|
---|
790 |
|
---|
791 | if ( RT_SUCCESS(rc)
|
---|
792 | && WINNT64_VALID_ADDRESS(GCPtrTmp))
|
---|
793 | {
|
---|
794 | LogFlow(("DigWinNt/KPCR[%u]: GS Base %RGv\n", idCpu, GCPtrTmp));
|
---|
795 | pVMM->pfnDBGFR3AddrFromFlat(pUVM, pKpcrAddr, GCPtrTmp);
|
---|
796 |
|
---|
797 | rc = pVMM->pfnDBGFR3RegCpuQueryU64(pUVM, idCpu, DBGFREG_GDTR_BASE, &GCPtrTmp);
|
---|
798 | if (RT_SUCCESS(rc))
|
---|
799 | {
|
---|
800 | /*
|
---|
801 | * Read the start of the KPCR (@todo Probably move this to a global header)
|
---|
802 | * and verify its content.
|
---|
803 | */
|
---|
804 | struct
|
---|
805 | {
|
---|
806 | RTGCUINTPTR GCPtrGdt;
|
---|
807 | RTGCUINTPTR GCPtrTss;
|
---|
808 | RTGCUINTPTR GCPtrUserRsp;
|
---|
809 | RTGCUINTPTR GCPtrSelf;
|
---|
810 | RTGCUINTPTR GCPtrCurrentPrcb;
|
---|
811 | } Kpcr;
|
---|
812 |
|
---|
813 | rc = pVMM->pfnDBGFR3MemRead(pUVM, idCpu, pKpcrAddr, &Kpcr, sizeof(Kpcr));
|
---|
814 | if (RT_SUCCESS(rc))
|
---|
815 | {
|
---|
816 | if ( Kpcr.GCPtrGdt == GCPtrTmp
|
---|
817 | && Kpcr.GCPtrSelf == pKpcrAddr->FlatPtr
|
---|
818 | /** @todo && TSS */ )
|
---|
819 | {
|
---|
820 | pVMM->pfnDBGFR3AddrFromFlat(pUVM, pKpcrbAddr, Kpcr.GCPtrCurrentPrcb);
|
---|
821 | LogRel(("DigWinNt/KPCR[%u]: KPCR=%RGv KPCRB=%RGv\n", idCpu, pKpcrAddr->FlatPtr, pKpcrbAddr->FlatPtr));
|
---|
822 | }
|
---|
823 | else
|
---|
824 | LogRel(("DigWinNt/KPCR[%u]: KPCR validation error GDT=(%RGv vs %RGv) KPCR=(%RGv vs %RGv)\n", idCpu,
|
---|
825 | Kpcr.GCPtrGdt, GCPtrTmp, Kpcr.GCPtrSelf, pKpcrAddr->FlatPtr));
|
---|
826 | }
|
---|
827 | else
|
---|
828 | LogRel(("DigWinNt/KPCR[%u]: Reading KPCR start at %RGv failed with %Rrc\n", idCpu, pKpcrAddr->FlatPtr, rc));
|
---|
829 | }
|
---|
830 | else
|
---|
831 | LogRel(("DigWinNt/KPCR[%u]: Getting GDT base register failed with %Rrc\n", idCpu, rc));
|
---|
832 | }
|
---|
833 | else
|
---|
834 | LogRel(("DigWinNt/KPCR[%u]: Getting GS base register failed with %Rrc\n", idCpu, rc));
|
---|
835 | }
|
---|
836 | }
|
---|
837 |
|
---|
838 | if (RT_FAILURE(rc))
|
---|
839 | {
|
---|
840 | LogRel(("DigWinNt/KPCR: Failed to detmine KPCR and KPCRB rc=%Rrc\n", rc));
|
---|
841 | RTMemFree(pThis->paKpcrAddr);
|
---|
842 | pThis->paKpcrAddr = NULL;
|
---|
843 | pThis->paKpcrbAddr = NULL;
|
---|
844 | }
|
---|
845 | }
|
---|
846 | else
|
---|
847 | LogRel(("DigWinNt/KPCR: Failed to allocate %u entries for the KPCR/KPCRB addresses\n", cCpus * 2));
|
---|
848 | }
|
---|
849 |
|
---|
850 |
|
---|
851 | /**
|
---|
852 | * Process a PE image found in guest memory.
|
---|
853 | *
|
---|
854 | * @param pThis The instance data.
|
---|
855 | * @param pUVM The user mode VM handle.
|
---|
856 | * @param pVMM The VMM function table.
|
---|
857 | * @param pszName The module name.
|
---|
858 | * @param pszFilename The image filename.
|
---|
859 | * @param pImageAddr The image address.
|
---|
860 | * @param cbImage The size of the image.
|
---|
861 | */
|
---|
862 | static void dbgDiggerWinNtProcessImage(PDBGDIGGERWINNT pThis, PUVM pUVM, PCVMMR3VTABLE pVMM, const char *pszName,
|
---|
863 | const char *pszFilename, PCDBGFADDRESS pImageAddr, uint32_t cbImage)
|
---|
864 | {
|
---|
865 | LogFlow(("DigWinNt: %RGp %#x %s\n", pImageAddr->FlatPtr, cbImage, pszName));
|
---|
866 |
|
---|
867 | /*
|
---|
868 | * Do some basic validation first.
|
---|
869 | */
|
---|
870 | if ( (cbImage < sizeof(IMAGE_NT_HEADERS64) && !pThis->fNt31)
|
---|
871 | || cbImage >= _1M * 256)
|
---|
872 | {
|
---|
873 | Log(("DigWinNt: %s: Bad image size: %#x\n", pszName, cbImage));
|
---|
874 | return;
|
---|
875 | }
|
---|
876 |
|
---|
877 | /*
|
---|
878 | * Use the common in-memory module reader to create a debug module.
|
---|
879 | */
|
---|
880 | RTERRINFOSTATIC ErrInfo;
|
---|
881 | RTDBGMOD hDbgMod = NIL_RTDBGMOD;
|
---|
882 | int rc = pVMM->pfnDBGFR3ModInMem(pUVM, pImageAddr, pThis->fNt31 ? DBGFMODINMEM_F_PE_NT31 : 0, pszName, pszFilename,
|
---|
883 | pThis->f32Bit ? RTLDRARCH_X86_32 : RTLDRARCH_AMD64, cbImage,
|
---|
884 | &hDbgMod, RTErrInfoInitStatic(&ErrInfo));
|
---|
885 | if (RT_SUCCESS(rc))
|
---|
886 | {
|
---|
887 | /*
|
---|
888 | * Tag the module.
|
---|
889 | */
|
---|
890 | rc = RTDbgModSetTag(hDbgMod, DIG_WINNT_MOD_TAG);
|
---|
891 | AssertRC(rc);
|
---|
892 |
|
---|
893 | /*
|
---|
894 | * Link the module.
|
---|
895 | */
|
---|
896 | RTDBGAS hAs = pVMM->pfnDBGFR3AsResolveAndRetain(pUVM, DBGF_AS_KERNEL);
|
---|
897 | if (hAs != NIL_RTDBGAS)
|
---|
898 | rc = RTDbgAsModuleLink(hAs, hDbgMod, pImageAddr->FlatPtr, RTDBGASLINK_FLAGS_REPLACE /*fFlags*/);
|
---|
899 | else
|
---|
900 | rc = VERR_INTERNAL_ERROR;
|
---|
901 | RTDbgModRelease(hDbgMod);
|
---|
902 | RTDbgAsRelease(hAs);
|
---|
903 | }
|
---|
904 | else if (RTErrInfoIsSet(&ErrInfo.Core))
|
---|
905 | Log(("DigWinNt: %s: DBGFR3ModInMem failed: %Rrc - %s\n", pszName, rc, ErrInfo.Core.pszMsg));
|
---|
906 | else
|
---|
907 | Log(("DigWinNt: %s: DBGFR3ModInMem failed: %Rrc\n", pszName, rc));
|
---|
908 | }
|
---|
909 |
|
---|
910 |
|
---|
911 | /**
|
---|
912 | * Generate a debugger compatible module name from a filename.
|
---|
913 | *
|
---|
914 | * @returns Pointer to module name (doesn't need to be pszName).
|
---|
915 | * @param pszFilename The source filename.
|
---|
916 | * @param pszName Buffer to put the module name in.
|
---|
917 | * @param cbName Buffer size.
|
---|
918 | */
|
---|
919 | static const char *dbgDiggerWintNtFilenameToModuleName(const char *pszFilename, char *pszName, size_t cbName)
|
---|
920 | {
|
---|
921 | /* Skip to the filename part of the filename. :-) */
|
---|
922 | pszFilename = RTPathFilenameEx(pszFilename, RTPATH_STR_F_STYLE_DOS);
|
---|
923 |
|
---|
924 | /* We try use 'nt' for the kernel. */
|
---|
925 | if ( RTStrICmpAscii(pszFilename, "ntoskrnl.exe") == 0
|
---|
926 | || RTStrICmpAscii(pszFilename, "ntkrnlmp.exe") == 0)
|
---|
927 | return "nt";
|
---|
928 |
|
---|
929 |
|
---|
930 | /* Drop the extension if .dll or .sys. */
|
---|
931 | size_t cchFilename = strlen(pszFilename);
|
---|
932 | if ( cchFilename > 4
|
---|
933 | && pszFilename[cchFilename - 4] == '.')
|
---|
934 | {
|
---|
935 | if ( RTStrICmpAscii(&pszFilename[cchFilename - 4], ".sys") == 0
|
---|
936 | || RTStrICmpAscii(&pszFilename[cchFilename - 4], ".dll") == 0)
|
---|
937 | cchFilename -= 4;
|
---|
938 | }
|
---|
939 |
|
---|
940 | /* Copy and do replacements. */
|
---|
941 | if (cchFilename >= cbName)
|
---|
942 | cchFilename = cbName - 1;
|
---|
943 | size_t off;
|
---|
944 | for (off = 0; off < cchFilename; off++)
|
---|
945 | {
|
---|
946 | char ch = pszFilename[off];
|
---|
947 | if (!RT_C_IS_ALNUM(ch))
|
---|
948 | ch = '_';
|
---|
949 | pszName[off] = ch;
|
---|
950 | }
|
---|
951 | pszName[off] = '\0';
|
---|
952 | return pszName;
|
---|
953 | }
|
---|
954 |
|
---|
955 |
|
---|
956 | /**
|
---|
957 | * @interface_method_impl{DBGFOSIWINNT,pfnQueryVersion}
|
---|
958 | */
|
---|
959 | static DECLCALLBACK(int) dbgDiggerWinNtIWinNt_QueryVersion(struct DBGFOSIWINNT *pThis, PUVM pUVM, PCVMMR3VTABLE pVMM,
|
---|
960 | uint32_t *puVersMajor, uint32_t *puVersMinor,
|
---|
961 | uint32_t *puBuildNumber, bool *pf32Bit)
|
---|
962 | {
|
---|
963 | PDBGDIGGERWINNT pData = RT_FROM_MEMBER(pThis, DBGDIGGERWINNT, IWinNt);
|
---|
964 | RT_NOREF(pUVM, pVMM);
|
---|
965 |
|
---|
966 | if (puVersMajor)
|
---|
967 | *puVersMajor = pData->NtMajorVersion;
|
---|
968 | if (puVersMinor)
|
---|
969 | *puVersMinor = pData->NtMinorVersion;
|
---|
970 | if (puBuildNumber)
|
---|
971 | *puBuildNumber = pData->NtBuildNumber;
|
---|
972 | if (pf32Bit)
|
---|
973 | *pf32Bit = pData->f32Bit;
|
---|
974 | return VINF_SUCCESS;
|
---|
975 | }
|
---|
976 |
|
---|
977 |
|
---|
978 | /**
|
---|
979 | * @interface_method_impl{DBGFOSIWINNT,pfnQueryKernelPtrs}
|
---|
980 | */
|
---|
981 | static DECLCALLBACK(int) dbgDiggerWinNtIWinNt_QueryKernelPtrs(struct DBGFOSIWINNT *pThis, PUVM pUVM, PCVMMR3VTABLE pVMM,
|
---|
982 | PRTGCUINTPTR pGCPtrKernBase, PRTGCUINTPTR pGCPtrPsLoadedModuleList)
|
---|
983 | {
|
---|
984 | PDBGDIGGERWINNT pData = RT_FROM_MEMBER(pThis, DBGDIGGERWINNT, IWinNt);
|
---|
985 | RT_NOREF(pUVM, pVMM);
|
---|
986 |
|
---|
987 | *pGCPtrKernBase = pData->KernelAddr.FlatPtr;
|
---|
988 | *pGCPtrPsLoadedModuleList = pData->PsLoadedModuleListAddr.FlatPtr;
|
---|
989 | return VINF_SUCCESS;
|
---|
990 | }
|
---|
991 |
|
---|
992 |
|
---|
993 | /**
|
---|
994 | * @interface_method_impl{DBGFOSIWINNT,pfnQueryKpcrForVCpu}
|
---|
995 | */
|
---|
996 | static DECLCALLBACK(int) dbgDiggerWinNtIWinNt_QueryKpcrForVCpu(struct DBGFOSIWINNT *pThis, PUVM pUVM, PCVMMR3VTABLE pVMM,
|
---|
997 | VMCPUID idCpu, PRTGCUINTPTR pKpcr, PRTGCUINTPTR pKpcrb)
|
---|
998 | {
|
---|
999 | PDBGDIGGERWINNT pData = RT_FROM_MEMBER(pThis, DBGDIGGERWINNT, IWinNt);
|
---|
1000 |
|
---|
1001 | if (!pData->paKpcrAddr)
|
---|
1002 | return VERR_NOT_SUPPORTED;
|
---|
1003 |
|
---|
1004 | AssertReturn(idCpu < pVMM->pfnDBGFR3CpuGetCount(pUVM), VERR_INVALID_CPU_ID);
|
---|
1005 |
|
---|
1006 | if (pKpcr)
|
---|
1007 | *pKpcr = pData->paKpcrAddr[idCpu].FlatPtr;
|
---|
1008 | if (pKpcrb)
|
---|
1009 | *pKpcrb = pData->paKpcrbAddr[idCpu].FlatPtr;
|
---|
1010 | return VINF_SUCCESS;
|
---|
1011 | }
|
---|
1012 |
|
---|
1013 |
|
---|
1014 | /**
|
---|
1015 | * @interface_method_impl{DBGFOSIWINNT,pfnQueryCurThrdForVCpu}
|
---|
1016 | */
|
---|
1017 | static DECLCALLBACK(int) dbgDiggerWinNtIWinNt_QueryCurThrdForVCpu(struct DBGFOSIWINNT *pThis, PUVM pUVM, PCVMMR3VTABLE pVMM,
|
---|
1018 | VMCPUID idCpu, PRTGCUINTPTR pCurThrd)
|
---|
1019 | {
|
---|
1020 | PDBGDIGGERWINNT pData = RT_FROM_MEMBER(pThis, DBGDIGGERWINNT, IWinNt);
|
---|
1021 |
|
---|
1022 | if (!pData->paKpcrAddr)
|
---|
1023 | return VERR_NOT_SUPPORTED;
|
---|
1024 |
|
---|
1025 | AssertReturn(idCpu < pVMM->pfnDBGFR3CpuGetCount(pUVM), VERR_INVALID_CPU_ID);
|
---|
1026 |
|
---|
1027 | DBGFADDRESS AddrCurThrdPtr = pData->paKpcrbAddr[idCpu];
|
---|
1028 | pVMM->pfnDBGFR3AddrAdd(&AddrCurThrdPtr, 0x08); /** @todo Make this prettier. */
|
---|
1029 | return pVMM->pfnDBGFR3MemRead(pUVM, idCpu, &AddrCurThrdPtr, pCurThrd, sizeof(*pCurThrd));
|
---|
1030 | }
|
---|
1031 |
|
---|
1032 |
|
---|
1033 | /**
|
---|
1034 | * @copydoc DBGFOSREG::pfnStackUnwindAssist
|
---|
1035 | */
|
---|
1036 | static DECLCALLBACK(int) dbgDiggerWinNtStackUnwindAssist(PUVM pUVM, PCVMMR3VTABLE pVMM, void *pvData, VMCPUID idCpu,
|
---|
1037 | PDBGFSTACKFRAME pFrame, PRTDBGUNWINDSTATE pState, PCCPUMCTX pInitialCtx,
|
---|
1038 | RTDBGAS hAs, uint64_t *puScratch)
|
---|
1039 | {
|
---|
1040 | Assert(pInitialCtx);
|
---|
1041 |
|
---|
1042 | /*
|
---|
1043 | * We want to locate trap frames here. The trap frame structure contains
|
---|
1044 | * the 64-bit IRET frame, so given unwind information it's easy to identify
|
---|
1045 | * using the return type and frame address.
|
---|
1046 | */
|
---|
1047 | if (pFrame->fFlags & DBGFSTACKFRAME_FLAGS_64BIT)
|
---|
1048 | {
|
---|
1049 | /*
|
---|
1050 | * Is this a trap frame? If so, try read the trap frame.
|
---|
1051 | */
|
---|
1052 | if ( pFrame->enmReturnType == RTDBGRETURNTYPE_IRET64
|
---|
1053 | && !(pFrame->AddrFrame.FlatPtr & 0x7)
|
---|
1054 | && WINNT64_VALID_ADDRESS(pFrame->AddrFrame.FlatPtr) )
|
---|
1055 | {
|
---|
1056 | KTRAP_FRAME_AMD64 TrapFrame;
|
---|
1057 | RT_ZERO(TrapFrame);
|
---|
1058 | uint64_t const uTrapFrameAddr = pFrame->AddrFrame.FlatPtr
|
---|
1059 | - RT_UOFFSETOF(KTRAP_FRAME_AMD64, ErrCdOrXcptFrameOrS);
|
---|
1060 | int rc = pState->pfnReadStack(pState, uTrapFrameAddr, sizeof(TrapFrame), &TrapFrame);
|
---|
1061 | if (RT_SUCCESS(rc))
|
---|
1062 | {
|
---|
1063 | /* Valid? Not too much else we can check here (EFlags isn't
|
---|
1064 | reliable in manually construct frames). */
|
---|
1065 | if (TrapFrame.ExceptionActive <= 2)
|
---|
1066 | {
|
---|
1067 | pFrame->fFlags |= DBGFSTACKFRAME_FLAGS_TRAP_FRAME;
|
---|
1068 |
|
---|
1069 | /*
|
---|
1070 | * Add sure 'register' information from the frame to the frame.
|
---|
1071 | *
|
---|
1072 | * To avoid code duplication, we do this in two steps in a loop.
|
---|
1073 | * The first iteration only figures out how many registers we're
|
---|
1074 | * going to save and allocates room for them. The second iteration
|
---|
1075 | * does the actual adding.
|
---|
1076 | */
|
---|
1077 | uint32_t cRegs = pFrame->cSureRegs;
|
---|
1078 | PDBGFREGVALEX paSureRegs = NULL;
|
---|
1079 | #define ADD_REG_NAMED(a_Type, a_ValMemb, a_Value, a_pszName) do { \
|
---|
1080 | if (paSureRegs) \
|
---|
1081 | { \
|
---|
1082 | paSureRegs[iReg].pszName = a_pszName;\
|
---|
1083 | paSureRegs[iReg].enmReg = DBGFREG_END; \
|
---|
1084 | paSureRegs[iReg].enmType = a_Type; \
|
---|
1085 | paSureRegs[iReg].Value.a_ValMemb = (a_Value); \
|
---|
1086 | } \
|
---|
1087 | iReg++; \
|
---|
1088 | } while (0)
|
---|
1089 | #define MAYBE_ADD_GREG(a_Value, a_enmReg, a_idxReg) do { \
|
---|
1090 | if (!(pState->u.x86.Loaded.s.fRegs & RT_BIT(a_idxReg))) \
|
---|
1091 | { \
|
---|
1092 | if (paSureRegs) \
|
---|
1093 | { \
|
---|
1094 | pState->u.x86.Loaded.s.fRegs |= RT_BIT(a_idxReg); \
|
---|
1095 | pState->u.x86.auRegs[a_idxReg] = (a_Value); \
|
---|
1096 | paSureRegs[iReg].Value.u64 = (a_Value); \
|
---|
1097 | paSureRegs[iReg].enmReg = a_enmReg; \
|
---|
1098 | paSureRegs[iReg].enmType = DBGFREGVALTYPE_U64; \
|
---|
1099 | paSureRegs[iReg].pszName = NULL; \
|
---|
1100 | } \
|
---|
1101 | iReg++; \
|
---|
1102 | } \
|
---|
1103 | } while (0)
|
---|
1104 | for (unsigned iLoop = 0; iLoop < 2; iLoop++)
|
---|
1105 | {
|
---|
1106 | uint32_t iReg = pFrame->cSureRegs;
|
---|
1107 | ADD_REG_NAMED(DBGFREGVALTYPE_U64, u64, uTrapFrameAddr, "TrapFrame");
|
---|
1108 | ADD_REG_NAMED(DBGFREGVALTYPE_U8, u8, TrapFrame.ExceptionActive, "ExceptionActive");
|
---|
1109 | if (TrapFrame.ExceptionActive == 0)
|
---|
1110 | {
|
---|
1111 | ADD_REG_NAMED(DBGFREGVALTYPE_U8, u8, TrapFrame.PreviousIrql, "PrevIrql");
|
---|
1112 | ADD_REG_NAMED(DBGFREGVALTYPE_U8, u8, (uint8_t)TrapFrame.ErrCdOrXcptFrameOrS, "IntNo");
|
---|
1113 | }
|
---|
1114 | else if ( TrapFrame.ExceptionActive == 1
|
---|
1115 | && TrapFrame.FaultIndicator == ((TrapFrame.ErrCdOrXcptFrameOrS >> 1) & 0x9))
|
---|
1116 | ADD_REG_NAMED(DBGFREGVALTYPE_U64, u64, TrapFrame.FaultAddrOrCtxRecOrTS, "cr2-probably");
|
---|
1117 | if (TrapFrame.SegCs & X86_SEL_RPL)
|
---|
1118 | ADD_REG_NAMED(DBGFREGVALTYPE_U8, u8, 1, "UserMode");
|
---|
1119 | else
|
---|
1120 | ADD_REG_NAMED(DBGFREGVALTYPE_U8, u8, 1, "KernelMode");
|
---|
1121 | if (TrapFrame.ExceptionActive <= 1)
|
---|
1122 | {
|
---|
1123 | MAYBE_ADD_GREG(TrapFrame.Rax, DBGFREG_RAX, X86_GREG_xAX);
|
---|
1124 | MAYBE_ADD_GREG(TrapFrame.Rcx, DBGFREG_RCX, X86_GREG_xCX);
|
---|
1125 | MAYBE_ADD_GREG(TrapFrame.Rdx, DBGFREG_RDX, X86_GREG_xDX);
|
---|
1126 | MAYBE_ADD_GREG(TrapFrame.R8, DBGFREG_R8, X86_GREG_x8);
|
---|
1127 | MAYBE_ADD_GREG(TrapFrame.R9, DBGFREG_R9, X86_GREG_x9);
|
---|
1128 | MAYBE_ADD_GREG(TrapFrame.R10, DBGFREG_R10, X86_GREG_x10);
|
---|
1129 | MAYBE_ADD_GREG(TrapFrame.R11, DBGFREG_R11, X86_GREG_x11);
|
---|
1130 | }
|
---|
1131 | else if (TrapFrame.ExceptionActive == 2)
|
---|
1132 | {
|
---|
1133 | MAYBE_ADD_GREG(TrapFrame.Rbx, DBGFREG_RBX, X86_GREG_xBX);
|
---|
1134 | MAYBE_ADD_GREG(TrapFrame.Rsi, DBGFREG_RSI, X86_GREG_xSI);
|
---|
1135 | MAYBE_ADD_GREG(TrapFrame.Rdi, DBGFREG_RDI, X86_GREG_xDI);
|
---|
1136 | }
|
---|
1137 | // MAYBE_ADD_GREG(TrapFrame.Rbp, DBGFREG_RBP, X86_GREG_xBP); - KiInterrupt[Sub]Dispatch* may leave this invalid.
|
---|
1138 |
|
---|
1139 | /* Done? */
|
---|
1140 | if (iLoop > 0)
|
---|
1141 | {
|
---|
1142 | Assert(cRegs == iReg);
|
---|
1143 | break;
|
---|
1144 | }
|
---|
1145 |
|
---|
1146 | /* Resize the array, zeroing the extension. */
|
---|
1147 | if (pFrame->cSureRegs)
|
---|
1148 | paSureRegs = (PDBGFREGVALEX)pVMM->pfnMMR3HeapRealloc(pFrame->paSureRegs, iReg * sizeof(paSureRegs[0]));
|
---|
1149 | else
|
---|
1150 | paSureRegs = (PDBGFREGVALEX)pVMM->pfnMMR3HeapAllocU(pUVM, MM_TAG_DBGF_STACK, iReg * sizeof(paSureRegs[0]));
|
---|
1151 | AssertReturn(paSureRegs, VERR_NO_MEMORY);
|
---|
1152 |
|
---|
1153 | pFrame->paSureRegs = paSureRegs;
|
---|
1154 | RT_BZERO(&paSureRegs[pFrame->cSureRegs], (iReg - pFrame->cSureRegs) * sizeof(paSureRegs[0]));
|
---|
1155 | cRegs = iReg;
|
---|
1156 | }
|
---|
1157 | #undef ADD_REG_NAMED
|
---|
1158 | #undef MAYBE_ADD_GREG
|
---|
1159 |
|
---|
1160 | /* Commit the register update. */
|
---|
1161 | pFrame->cSureRegs = cRegs;
|
---|
1162 | }
|
---|
1163 | }
|
---|
1164 | }
|
---|
1165 | }
|
---|
1166 |
|
---|
1167 | RT_NOREF(pUVM, pVMM, pvData, idCpu, hAs, pInitialCtx, puScratch);
|
---|
1168 | return VINF_SUCCESS;
|
---|
1169 | }
|
---|
1170 |
|
---|
1171 |
|
---|
1172 | /**
|
---|
1173 | * @copydoc DBGFOSREG::pfnQueryInterface
|
---|
1174 | */
|
---|
1175 | static DECLCALLBACK(void *) dbgDiggerWinNtQueryInterface(PUVM pUVM, PCVMMR3VTABLE pVMM, void *pvData, DBGFOSINTERFACE enmIf)
|
---|
1176 | {
|
---|
1177 | RT_NOREF(pUVM, pVMM);
|
---|
1178 | PDBGDIGGERWINNT pThis = (PDBGDIGGERWINNT)pvData;
|
---|
1179 |
|
---|
1180 | switch (enmIf)
|
---|
1181 | {
|
---|
1182 | case DBGFOSINTERFACE_WINNT:
|
---|
1183 | return &pThis->IWinNt;
|
---|
1184 | default:
|
---|
1185 | return NULL;
|
---|
1186 | }
|
---|
1187 | }
|
---|
1188 |
|
---|
1189 |
|
---|
1190 | /**
|
---|
1191 | * @copydoc DBGFOSREG::pfnQueryVersion
|
---|
1192 | */
|
---|
1193 | static DECLCALLBACK(int) dbgDiggerWinNtQueryVersion(PUVM pUVM, PCVMMR3VTABLE pVMM, void *pvData,
|
---|
1194 | char *pszVersion, size_t cchVersion)
|
---|
1195 | {
|
---|
1196 | RT_NOREF(pUVM, pVMM);
|
---|
1197 | PDBGDIGGERWINNT pThis = (PDBGDIGGERWINNT)pvData;
|
---|
1198 | Assert(pThis->fValid);
|
---|
1199 |
|
---|
1200 | const char *pszNtProductType;
|
---|
1201 | switch (pThis->NtProductType)
|
---|
1202 | {
|
---|
1203 | case kNtProductType_WinNt: pszNtProductType = "-WinNT"; break;
|
---|
1204 | case kNtProductType_LanManNt: pszNtProductType = "-LanManNT"; break;
|
---|
1205 | case kNtProductType_Server: pszNtProductType = "-Server"; break;
|
---|
1206 | default: pszNtProductType = ""; break;
|
---|
1207 | }
|
---|
1208 |
|
---|
1209 | RTStrPrintf(pszVersion, cchVersion, "%u.%u-%s%s (BuildNumber %u)", pThis->NtMajorVersion, pThis->NtMinorVersion,
|
---|
1210 | pThis->f32Bit ? "x86" : "AMD64", pszNtProductType, pThis->NtBuildNumber);
|
---|
1211 | return VINF_SUCCESS;
|
---|
1212 | }
|
---|
1213 |
|
---|
1214 |
|
---|
1215 | /**
|
---|
1216 | * @copydoc DBGFOSREG::pfnTerm
|
---|
1217 | */
|
---|
1218 | static DECLCALLBACK(void) dbgDiggerWinNtTerm(PUVM pUVM, PCVMMR3VTABLE pVMM, void *pvData)
|
---|
1219 | {
|
---|
1220 | RT_NOREF1(pUVM);
|
---|
1221 | PDBGDIGGERWINNT pThis = (PDBGDIGGERWINNT)pvData;
|
---|
1222 | Assert(pThis->fValid);
|
---|
1223 |
|
---|
1224 | #ifdef VBOX_DEBUGGER_WITH_WIN_DBG_PRINT_HOOKING
|
---|
1225 | if (pThis->hBpDbgPrint != NIL_DBGFBP)
|
---|
1226 | {
|
---|
1227 | int rc = DBGFR3BpClear(pUVM, pThis->hBpDbgPrint);
|
---|
1228 | AssertRC(rc);
|
---|
1229 | pThis->hBpDbgPrint = NIL_DBGFBP;
|
---|
1230 | }
|
---|
1231 |
|
---|
1232 | if (pThis->hBpOwnerDbgPrint != NIL_DBGFBPOWNER)
|
---|
1233 | {
|
---|
1234 | int rc = DBGFR3BpOwnerDestroy(pUVM, pThis->hBpOwnerDbgPrint);
|
---|
1235 | AssertRC(rc);
|
---|
1236 | pThis->hBpOwnerDbgPrint = NIL_DBGFBPOWNER;
|
---|
1237 | }
|
---|
1238 | #endif
|
---|
1239 |
|
---|
1240 | /*
|
---|
1241 | * As long as we're using our private LDR reader implementation,
|
---|
1242 | * we must unlink and ditch the modules we created.
|
---|
1243 | */
|
---|
1244 | RTDBGAS hDbgAs = pVMM->pfnDBGFR3AsResolveAndRetain(pUVM, DBGF_AS_KERNEL);
|
---|
1245 | if (hDbgAs != NIL_RTDBGAS)
|
---|
1246 | {
|
---|
1247 | uint32_t iMod = RTDbgAsModuleCount(hDbgAs);
|
---|
1248 | while (iMod-- > 0)
|
---|
1249 | {
|
---|
1250 | RTDBGMOD hMod = RTDbgAsModuleByIndex(hDbgAs, iMod);
|
---|
1251 | if (hMod != NIL_RTDBGMOD)
|
---|
1252 | {
|
---|
1253 | if (RTDbgModGetTag(hMod) == DIG_WINNT_MOD_TAG)
|
---|
1254 | {
|
---|
1255 | int rc = RTDbgAsModuleUnlink(hDbgAs, hMod);
|
---|
1256 | AssertRC(rc);
|
---|
1257 | }
|
---|
1258 | RTDbgModRelease(hMod);
|
---|
1259 | }
|
---|
1260 | }
|
---|
1261 | RTDbgAsRelease(hDbgAs);
|
---|
1262 | }
|
---|
1263 |
|
---|
1264 | if (pThis->paKpcrAddr)
|
---|
1265 | RTMemFree(pThis->paKpcrAddr);
|
---|
1266 | /* pThis->paKpcrbAddr comes from the same allocation as pThis->paKpcrAddr. */
|
---|
1267 |
|
---|
1268 | pThis->paKpcrAddr = NULL;
|
---|
1269 | pThis->paKpcrbAddr = NULL;
|
---|
1270 |
|
---|
1271 | pThis->fValid = false;
|
---|
1272 | }
|
---|
1273 |
|
---|
1274 |
|
---|
1275 | /**
|
---|
1276 | * @copydoc DBGFOSREG::pfnRefresh
|
---|
1277 | */
|
---|
1278 | static DECLCALLBACK(int) dbgDiggerWinNtRefresh(PUVM pUVM, PCVMMR3VTABLE pVMM, void *pvData)
|
---|
1279 | {
|
---|
1280 | PDBGDIGGERWINNT pThis = (PDBGDIGGERWINNT)pvData;
|
---|
1281 | NOREF(pThis);
|
---|
1282 | Assert(pThis->fValid);
|
---|
1283 |
|
---|
1284 | /*
|
---|
1285 | * For now we'll flush and reload everything.
|
---|
1286 | */
|
---|
1287 | dbgDiggerWinNtTerm(pUVM, pVMM, pvData);
|
---|
1288 |
|
---|
1289 | return dbgDiggerWinNtInit(pUVM, pVMM, pvData);
|
---|
1290 | }
|
---|
1291 |
|
---|
1292 |
|
---|
1293 | /**
|
---|
1294 | * @copydoc DBGFOSREG::pfnInit
|
---|
1295 | */
|
---|
1296 | static DECLCALLBACK(int) dbgDiggerWinNtInit(PUVM pUVM, PCVMMR3VTABLE pVMM, void *pvData)
|
---|
1297 | {
|
---|
1298 | PDBGDIGGERWINNT pThis = (PDBGDIGGERWINNT)pvData;
|
---|
1299 | Assert(!pThis->fValid);
|
---|
1300 |
|
---|
1301 | union
|
---|
1302 | {
|
---|
1303 | uint8_t au8[GUEST_PAGE_SIZE * 2];
|
---|
1304 | RTUTF16 wsz[GUEST_PAGE_SIZE];
|
---|
1305 | NTKUSERSHAREDDATA UserSharedData;
|
---|
1306 | } u;
|
---|
1307 | DBGFADDRESS Addr;
|
---|
1308 | int rc;
|
---|
1309 |
|
---|
1310 | /*
|
---|
1311 | * Figure the NT version.
|
---|
1312 | */
|
---|
1313 | pVMM->pfnDBGFR3AddrFromFlat(pUVM, &Addr, pThis->f32Bit ? NTKUSERSHAREDDATA_WINNT32 : NTKUSERSHAREDDATA_WINNT64);
|
---|
1314 | rc = pVMM->pfnDBGFR3MemRead(pUVM, 0 /*idCpu*/, &Addr, &u, GUEST_PAGE_SIZE);
|
---|
1315 | if (RT_SUCCESS(rc))
|
---|
1316 | {
|
---|
1317 | pThis->NtProductType = u.UserSharedData.ProductTypeIsValid && u.UserSharedData.NtProductType <= kNtProductType_Server
|
---|
1318 | ? (NTPRODUCTTYPE)u.UserSharedData.NtProductType
|
---|
1319 | : kNtProductType_Invalid;
|
---|
1320 | pThis->NtMajorVersion = u.UserSharedData.NtMajorVersion;
|
---|
1321 | pThis->NtMinorVersion = u.UserSharedData.NtMinorVersion;
|
---|
1322 | pThis->NtBuildNumber = u.UserSharedData.NtBuildNumber;
|
---|
1323 | }
|
---|
1324 | else if (pThis->fNt31)
|
---|
1325 | {
|
---|
1326 | pThis->NtProductType = kNtProductType_WinNt;
|
---|
1327 | pThis->NtMajorVersion = 3;
|
---|
1328 | pThis->NtMinorVersion = 1;
|
---|
1329 | pThis->NtBuildNumber = 0;
|
---|
1330 | }
|
---|
1331 | else
|
---|
1332 | {
|
---|
1333 | Log(("DigWinNt: Error reading KUSER_SHARED_DATA: %Rrc\n", rc));
|
---|
1334 | return rc;
|
---|
1335 | }
|
---|
1336 |
|
---|
1337 | /*
|
---|
1338 | * Dig out the module chain.
|
---|
1339 | */
|
---|
1340 | DBGFADDRESS AddrPrev = pThis->PsLoadedModuleListAddr;
|
---|
1341 | Addr = pThis->KernelMteAddr;
|
---|
1342 | do
|
---|
1343 | {
|
---|
1344 | /* Read the validate the MTE. */
|
---|
1345 | NTMTE Mte;
|
---|
1346 | rc = pVMM->pfnDBGFR3MemRead(pUVM, 0 /*idCpu*/, &Addr, &Mte, pThis->f32Bit ? sizeof(Mte.vX_32) : sizeof(Mte.vX_64));
|
---|
1347 | if (RT_FAILURE(rc))
|
---|
1348 | break;
|
---|
1349 | if (WINNT_UNION(pThis, &Mte, InLoadOrderLinks.Blink) != AddrPrev.FlatPtr)
|
---|
1350 | {
|
---|
1351 | Log(("DigWinNt: Bad Mte At %RGv - backpointer\n", Addr.FlatPtr));
|
---|
1352 | break;
|
---|
1353 | }
|
---|
1354 | if (!WINNT_VALID_ADDRESS(pThis, WINNT_UNION(pThis, &Mte, InLoadOrderLinks.Flink)) )
|
---|
1355 | {
|
---|
1356 | Log(("DigWinNt: Bad Mte at %RGv - forward pointer\n", Addr.FlatPtr));
|
---|
1357 | break;
|
---|
1358 | }
|
---|
1359 | if (!WINNT_VALID_ADDRESS(pThis, WINNT_UNION(pThis, &Mte, BaseDllName.Buffer)))
|
---|
1360 | {
|
---|
1361 | Log(("DigWinNt: Bad Mte at %RGv - BaseDllName=%llx\n", Addr.FlatPtr, WINNT_UNION(pThis, &Mte, BaseDllName.Buffer)));
|
---|
1362 | break;
|
---|
1363 | }
|
---|
1364 | if (!WINNT_VALID_ADDRESS(pThis, WINNT_UNION(pThis, &Mte, FullDllName.Buffer)))
|
---|
1365 | {
|
---|
1366 | Log(("DigWinNt: Bad Mte at %RGv - FullDllName=%llx\n", Addr.FlatPtr, WINNT_UNION(pThis, &Mte, FullDllName.Buffer)));
|
---|
1367 | break;
|
---|
1368 | }
|
---|
1369 | if (!WINNT_VALID_ADDRESS(pThis, WINNT_UNION(pThis, &Mte, DllBase)))
|
---|
1370 | {
|
---|
1371 | Log(("DigWinNt: Bad Mte at %RGv - DllBase=%llx\n", Addr.FlatPtr, WINNT_UNION(pThis, &Mte, DllBase) ));
|
---|
1372 | break;
|
---|
1373 | }
|
---|
1374 |
|
---|
1375 | uint32_t const cbImageMte = !pThis->fNt31 ? WINNT_UNION(pThis, &Mte, SizeOfImage) : 0;
|
---|
1376 | if ( !pThis->fNt31
|
---|
1377 | && ( cbImageMte > _256M
|
---|
1378 | || WINNT_UNION(pThis, &Mte, EntryPoint) - WINNT_UNION(pThis, &Mte, DllBase) > cbImageMte) )
|
---|
1379 | {
|
---|
1380 | Log(("DigWinNt: Bad Mte at %RGv - EntryPoint=%llx SizeOfImage=%x DllBase=%llx\n",
|
---|
1381 | Addr.FlatPtr, WINNT_UNION(pThis, &Mte, EntryPoint), cbImageMte, WINNT_UNION(pThis, &Mte, DllBase)));
|
---|
1382 | break;
|
---|
1383 | }
|
---|
1384 |
|
---|
1385 | /* Read the full name. */
|
---|
1386 | DBGFADDRESS AddrName;
|
---|
1387 | pVMM->pfnDBGFR3AddrFromFlat(pUVM, &AddrName, WINNT_UNION(pThis, &Mte, FullDllName.Buffer));
|
---|
1388 | uint16_t cbName = WINNT_UNION(pThis, &Mte, FullDllName.Length);
|
---|
1389 | if (cbName < sizeof(u))
|
---|
1390 | rc = pVMM->pfnDBGFR3MemRead(pUVM, 0 /*idCpu*/, &AddrName, &u, cbName);
|
---|
1391 | else
|
---|
1392 | rc = VERR_OUT_OF_RANGE;
|
---|
1393 | if (RT_FAILURE(rc))
|
---|
1394 | {
|
---|
1395 | pVMM->pfnDBGFR3AddrFromFlat(pUVM, &AddrName, WINNT_UNION(pThis, &Mte, BaseDllName.Buffer));
|
---|
1396 | cbName = WINNT_UNION(pThis, &Mte, BaseDllName.Length);
|
---|
1397 | if (cbName < sizeof(u))
|
---|
1398 | rc = pVMM->pfnDBGFR3MemRead(pUVM, 0 /*idCpu*/, &AddrName, &u, cbName);
|
---|
1399 | else
|
---|
1400 | rc = VERR_OUT_OF_RANGE;
|
---|
1401 | }
|
---|
1402 | if (RT_SUCCESS(rc))
|
---|
1403 | {
|
---|
1404 | u.wsz[cbName / 2] = '\0';
|
---|
1405 |
|
---|
1406 | char *pszFilename;
|
---|
1407 | rc = RTUtf16ToUtf8(u.wsz, &pszFilename);
|
---|
1408 | if (RT_SUCCESS(rc))
|
---|
1409 | {
|
---|
1410 | char szModName[128];
|
---|
1411 | const char *pszModName = dbgDiggerWintNtFilenameToModuleName(pszFilename, szModName, sizeof(szModName));
|
---|
1412 |
|
---|
1413 | /* Read the start of the PE image and pass it along to a worker. */
|
---|
1414 | DBGFADDRESS ImageAddr;
|
---|
1415 | pVMM->pfnDBGFR3AddrFromFlat(pUVM, &ImageAddr, WINNT_UNION(pThis, &Mte, DllBase));
|
---|
1416 | dbgDiggerWinNtProcessImage(pThis, pUVM, pVMM, pszModName, pszFilename, &ImageAddr, cbImageMte);
|
---|
1417 | RTStrFree(pszFilename);
|
---|
1418 | }
|
---|
1419 | }
|
---|
1420 |
|
---|
1421 | /* next */
|
---|
1422 | AddrPrev = Addr;
|
---|
1423 | pVMM->pfnDBGFR3AddrFromFlat(pUVM, &Addr, WINNT_UNION(pThis, &Mte, InLoadOrderLinks.Flink));
|
---|
1424 | } while ( Addr.FlatPtr != pThis->KernelMteAddr.FlatPtr
|
---|
1425 | && Addr.FlatPtr != pThis->PsLoadedModuleListAddr.FlatPtr);
|
---|
1426 |
|
---|
1427 | /* Try resolving the KPCR and KPCRB addresses for each vCPU. */
|
---|
1428 | dbgDiggerWinNtResolveKpcr(pThis, pUVM, pVMM);
|
---|
1429 |
|
---|
1430 | #ifdef VBOX_DEBUGGER_WITH_WIN_DBG_PRINT_HOOKING
|
---|
1431 | /* Try to hook into the DbgPrint/vDbgPrint... code so we can gather information from the drivers. */
|
---|
1432 | dbgDiggerWinNtDbgPrintHook(pThis, pUVM);
|
---|
1433 | #endif
|
---|
1434 |
|
---|
1435 | pThis->fValid = true;
|
---|
1436 | return VINF_SUCCESS;
|
---|
1437 | }
|
---|
1438 |
|
---|
1439 |
|
---|
1440 | /**
|
---|
1441 | * @copydoc DBGFOSREG::pfnProbe
|
---|
1442 | */
|
---|
1443 | static DECLCALLBACK(bool) dbgDiggerWinNtProbe(PUVM pUVM, PCVMMR3VTABLE pVMM, void *pvData)
|
---|
1444 | {
|
---|
1445 | PDBGDIGGERWINNT pThis = (PDBGDIGGERWINNT)pvData;
|
---|
1446 | DBGFADDRESS Addr;
|
---|
1447 | union
|
---|
1448 | {
|
---|
1449 | uint8_t au8[8192];
|
---|
1450 | uint16_t au16[8192/2];
|
---|
1451 | uint32_t au32[8192/4];
|
---|
1452 | IMAGE_DOS_HEADER MzHdr;
|
---|
1453 | RTUTF16 wsz[8192/2];
|
---|
1454 | X86DESCGATE a32Gates[X86_XCPT_PF + 1];
|
---|
1455 | X86DESC64GATE a64Gates[X86_XCPT_PF + 1];
|
---|
1456 | } u;
|
---|
1457 |
|
---|
1458 | union
|
---|
1459 | {
|
---|
1460 | NTMTE32 v32;
|
---|
1461 | NTMTE64 v64;
|
---|
1462 | } uMte, uMte2, uMte3;
|
---|
1463 |
|
---|
1464 | /*
|
---|
1465 | * NT only runs in protected or long mode.
|
---|
1466 | */
|
---|
1467 | CPUMMODE const enmMode = pVMM->pfnDBGFR3CpuGetMode(pUVM, 0 /*idCpu*/);
|
---|
1468 | if (enmMode != CPUMMODE_PROTECTED && enmMode != CPUMMODE_LONG)
|
---|
1469 | return false;
|
---|
1470 | bool const f64Bit = enmMode == CPUMMODE_LONG;
|
---|
1471 | uint64_t const uStart = f64Bit ? UINT64_C(0xffff080000000000) : UINT32_C(0x80001000);
|
---|
1472 | uint64_t const uEnd = f64Bit ? UINT64_C(0xffffffffffff0000) : UINT32_C(0xffff0000);
|
---|
1473 |
|
---|
1474 | /*
|
---|
1475 | * To approximately locate the kernel we examine the IDTR handlers.
|
---|
1476 | *
|
---|
1477 | * The exception/trap/fault handlers are all in NT kernel image, we pick
|
---|
1478 | * KiPageFault here.
|
---|
1479 | */
|
---|
1480 | uint64_t uIdtrBase = 0;
|
---|
1481 | uint16_t uIdtrLimit = 0;
|
---|
1482 | int rc = pVMM->pfnDBGFR3RegCpuQueryXdtr(pUVM, 0, DBGFREG_IDTR, &uIdtrBase, &uIdtrLimit);
|
---|
1483 | AssertRCReturn(rc, false);
|
---|
1484 |
|
---|
1485 | const uint16_t cbMinIdtr = (X86_XCPT_PF + 1) * (f64Bit ? sizeof(X86DESC64GATE) : sizeof(X86DESCGATE));
|
---|
1486 | if (uIdtrLimit < cbMinIdtr)
|
---|
1487 | return false;
|
---|
1488 |
|
---|
1489 | rc = pVMM->pfnDBGFR3MemRead(pUVM, 0 /*idCpu*/, pVMM->pfnDBGFR3AddrFromFlat(pUVM, &Addr, uIdtrBase), &u, cbMinIdtr);
|
---|
1490 | if (RT_FAILURE(rc))
|
---|
1491 | return false;
|
---|
1492 |
|
---|
1493 | uint64_t uKrnlStart = uStart;
|
---|
1494 | uint64_t uKrnlEnd = uEnd;
|
---|
1495 | if (f64Bit)
|
---|
1496 | {
|
---|
1497 | uint64_t uHandler = u.a64Gates[X86_XCPT_PF].u16OffsetLow
|
---|
1498 | | ((uint32_t)u.a64Gates[X86_XCPT_PF].u16OffsetHigh << 16)
|
---|
1499 | | ((uint64_t)u.a64Gates[X86_XCPT_PF].u32OffsetTop << 32);
|
---|
1500 | if (uHandler < uStart || uHandler > uEnd)
|
---|
1501 | return false;
|
---|
1502 | uKrnlStart = (uHandler & ~(uint64_t)_4M) - _512M;
|
---|
1503 | uKrnlEnd = (uHandler + (uint64_t)_4M) & ~(uint64_t)_4M;
|
---|
1504 | }
|
---|
1505 | else
|
---|
1506 | {
|
---|
1507 | uint32_t uHandler = RT_MAKE_U32(u.a32Gates[X86_XCPT_PF].u16OffsetLow, u.a32Gates[X86_XCPT_PF].u16OffsetHigh);
|
---|
1508 | if (uHandler < uStart || uHandler > uEnd)
|
---|
1509 | return false;
|
---|
1510 | uKrnlStart = (uHandler & ~(uint64_t)_4M) - _64M;
|
---|
1511 | uKrnlEnd = (uHandler + (uint64_t)_4M) & ~(uint64_t)_4M;
|
---|
1512 | }
|
---|
1513 |
|
---|
1514 | /*
|
---|
1515 | * Look for the PAGELK section name that seems to be a part of all kernels.
|
---|
1516 | * Then try find the module table entry for it. Since it's the first entry
|
---|
1517 | * in the PsLoadedModuleList we can easily validate the list head and report
|
---|
1518 | * success.
|
---|
1519 | *
|
---|
1520 | * Note! We ASSUME the section name is 8 byte aligned.
|
---|
1521 | */
|
---|
1522 | DBGFADDRESS KernelAddr;
|
---|
1523 | for (pVMM->pfnDBGFR3AddrFromFlat(pUVM, &KernelAddr, uKrnlStart);
|
---|
1524 | KernelAddr.FlatPtr < uKrnlEnd;
|
---|
1525 | KernelAddr.FlatPtr += GUEST_PAGE_SIZE)
|
---|
1526 | {
|
---|
1527 | bool fNt31 = false;
|
---|
1528 | DBGFADDRESS const RetryAddress = KernelAddr;
|
---|
1529 | rc = pVMM->pfnDBGFR3MemScan(pUVM, 0 /*idCpu*/, &KernelAddr, uEnd - KernelAddr.FlatPtr,
|
---|
1530 | 8, "PAGELK\0", sizeof("PAGELK\0"), &KernelAddr);
|
---|
1531 | if ( rc == VERR_DBGF_MEM_NOT_FOUND
|
---|
1532 | && enmMode != CPUMMODE_LONG)
|
---|
1533 | {
|
---|
1534 | /* NT3.1 didn't have a PAGELK section, so look for _TEXT instead. The
|
---|
1535 | following VirtualSize is zero, so check for that too. */
|
---|
1536 | rc = pVMM->pfnDBGFR3MemScan(pUVM, 0 /*idCpu*/, &RetryAddress, uEnd - RetryAddress.FlatPtr,
|
---|
1537 | 8, "_TEXT\0\0\0\0\0\0", sizeof("_TEXT\0\0\0\0\0\0"), &KernelAddr);
|
---|
1538 | fNt31 = true;
|
---|
1539 | }
|
---|
1540 | if (RT_FAILURE(rc))
|
---|
1541 | break;
|
---|
1542 | pVMM->pfnDBGFR3AddrSub(&KernelAddr, KernelAddr.FlatPtr & GUEST_PAGE_OFFSET_MASK);
|
---|
1543 |
|
---|
1544 | /* MZ + PE header. */
|
---|
1545 | rc = pVMM->pfnDBGFR3MemRead(pUVM, 0 /*idCpu*/, &KernelAddr, &u, sizeof(u));
|
---|
1546 | if ( RT_SUCCESS(rc)
|
---|
1547 | && u.MzHdr.e_magic == IMAGE_DOS_SIGNATURE
|
---|
1548 | && !(u.MzHdr.e_lfanew & 0x7)
|
---|
1549 | && u.MzHdr.e_lfanew >= 0x080
|
---|
1550 | && u.MzHdr.e_lfanew <= 0x400) /* W8 is at 0x288*/
|
---|
1551 | {
|
---|
1552 | if (enmMode != CPUMMODE_LONG)
|
---|
1553 | {
|
---|
1554 | IMAGE_NT_HEADERS32 const *pHdrs = (IMAGE_NT_HEADERS32 const *)&u.au8[u.MzHdr.e_lfanew];
|
---|
1555 | if ( pHdrs->Signature == IMAGE_NT_SIGNATURE
|
---|
1556 | && pHdrs->FileHeader.Machine == IMAGE_FILE_MACHINE_I386
|
---|
1557 | && pHdrs->FileHeader.SizeOfOptionalHeader == sizeof(pHdrs->OptionalHeader)
|
---|
1558 | && pHdrs->FileHeader.NumberOfSections >= 10 /* the kernel has lots */
|
---|
1559 | && (pHdrs->FileHeader.Characteristics & (IMAGE_FILE_EXECUTABLE_IMAGE | IMAGE_FILE_DLL)) == IMAGE_FILE_EXECUTABLE_IMAGE
|
---|
1560 | && pHdrs->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR32_MAGIC
|
---|
1561 | && pHdrs->OptionalHeader.NumberOfRvaAndSizes == IMAGE_NUMBEROF_DIRECTORY_ENTRIES
|
---|
1562 | )
|
---|
1563 | {
|
---|
1564 | /* Find the MTE. */
|
---|
1565 | RT_ZERO(uMte);
|
---|
1566 | uMte.v32.DllBase = KernelAddr.FlatPtr;
|
---|
1567 | uMte.v32.EntryPoint = KernelAddr.FlatPtr + pHdrs->OptionalHeader.AddressOfEntryPoint;
|
---|
1568 | uMte.v32.SizeOfImage = !fNt31 ? pHdrs->OptionalHeader.SizeOfImage : 0; /* NT 3.1 didn't set the size. */
|
---|
1569 | DBGFADDRESS HitAddr;
|
---|
1570 | rc = pVMM->pfnDBGFR3MemScan(pUVM, 0 /*idCpu*/, &KernelAddr, uEnd - KernelAddr.FlatPtr,
|
---|
1571 | 4 /*align*/, &uMte.v32.DllBase, 3 * sizeof(uint32_t), &HitAddr);
|
---|
1572 | while (RT_SUCCESS(rc))
|
---|
1573 | {
|
---|
1574 | /* check the name. */
|
---|
1575 | DBGFADDRESS MteAddr = HitAddr;
|
---|
1576 | rc = pVMM->pfnDBGFR3MemRead(pUVM, 0 /*idCpu*/,
|
---|
1577 | pVMM->pfnDBGFR3AddrSub(&MteAddr, RT_OFFSETOF(NTMTE32, DllBase)),
|
---|
1578 | &uMte2.v32, sizeof(uMte2.v32));
|
---|
1579 | if ( RT_SUCCESS(rc)
|
---|
1580 | && uMte2.v32.DllBase == uMte.v32.DllBase
|
---|
1581 | && uMte2.v32.EntryPoint == uMte.v32.EntryPoint
|
---|
1582 | && uMte2.v32.SizeOfImage == uMte.v32.SizeOfImage
|
---|
1583 | && WINNT32_VALID_ADDRESS(uMte2.v32.InLoadOrderLinks.Flink)
|
---|
1584 | && WINNT32_VALID_ADDRESS(uMte2.v32.BaseDllName.Buffer)
|
---|
1585 | && WINNT32_VALID_ADDRESS(uMte2.v32.FullDllName.Buffer)
|
---|
1586 | && uMte2.v32.BaseDllName.Length <= 128
|
---|
1587 | && uMte2.v32.FullDllName.Length <= 260
|
---|
1588 | )
|
---|
1589 | {
|
---|
1590 | rc = pVMM->pfnDBGFR3MemRead(pUVM, 0 /*idCpu*/,
|
---|
1591 | pVMM->pfnDBGFR3AddrFromFlat(pUVM, &Addr, uMte2.v32.BaseDllName.Buffer),
|
---|
1592 | u.wsz, uMte2.v32.BaseDllName.Length);
|
---|
1593 | u.wsz[uMte2.v32.BaseDllName.Length / 2] = '\0';
|
---|
1594 | if ( RT_SUCCESS(rc)
|
---|
1595 | && ( !RTUtf16ICmp(u.wsz, g_wszKernelNames[0])
|
---|
1596 | /* || !RTUtf16ICmp(u.wsz, g_wszKernelNames[1]) */
|
---|
1597 | )
|
---|
1598 | )
|
---|
1599 | {
|
---|
1600 | rc = pVMM->pfnDBGFR3MemRead(pUVM, 0 /*idCpu*/,
|
---|
1601 | pVMM->pfnDBGFR3AddrFromFlat(pUVM, &Addr,
|
---|
1602 | uMte2.v32.InLoadOrderLinks.Blink),
|
---|
1603 | &uMte3.v32, RT_SIZEOFMEMB(NTMTE32, InLoadOrderLinks));
|
---|
1604 | if ( RT_SUCCESS(rc)
|
---|
1605 | && uMte3.v32.InLoadOrderLinks.Flink == MteAddr.FlatPtr
|
---|
1606 | && WINNT32_VALID_ADDRESS(uMte3.v32.InLoadOrderLinks.Blink) )
|
---|
1607 | {
|
---|
1608 | Log(("DigWinNt: MteAddr=%RGv KernelAddr=%RGv SizeOfImage=%x &PsLoadedModuleList=%RGv (32-bit)\n",
|
---|
1609 | MteAddr.FlatPtr, KernelAddr.FlatPtr, uMte2.v32.SizeOfImage, Addr.FlatPtr));
|
---|
1610 | pThis->KernelAddr = KernelAddr;
|
---|
1611 | pThis->KernelMteAddr = MteAddr;
|
---|
1612 | pThis->PsLoadedModuleListAddr = Addr;
|
---|
1613 | pThis->f32Bit = true;
|
---|
1614 | pThis->fNt31 = fNt31;
|
---|
1615 | return true;
|
---|
1616 | }
|
---|
1617 | }
|
---|
1618 | else if (RT_SUCCESS(rc))
|
---|
1619 | {
|
---|
1620 | Log2(("DigWinNt: Wrong module: MteAddr=%RGv ImageAddr=%RGv SizeOfImage=%#x '%ls'\n",
|
---|
1621 | MteAddr.FlatPtr, KernelAddr.FlatPtr, uMte2.v32.SizeOfImage, u.wsz));
|
---|
1622 | break; /* Not NT kernel */
|
---|
1623 | }
|
---|
1624 | }
|
---|
1625 |
|
---|
1626 | /* next */
|
---|
1627 | pVMM->pfnDBGFR3AddrAdd(&HitAddr, 4);
|
---|
1628 | if (HitAddr.FlatPtr < uEnd)
|
---|
1629 | rc = pVMM->pfnDBGFR3MemScan(pUVM, 0 /*idCpu*/, &HitAddr, uEnd - HitAddr.FlatPtr,
|
---|
1630 | 4 /*align*/, &uMte.v32.DllBase, 3 * sizeof(uint32_t), &HitAddr);
|
---|
1631 | else
|
---|
1632 | rc = VERR_DBGF_MEM_NOT_FOUND;
|
---|
1633 | }
|
---|
1634 | }
|
---|
1635 | }
|
---|
1636 | else
|
---|
1637 | {
|
---|
1638 | IMAGE_NT_HEADERS64 const *pHdrs = (IMAGE_NT_HEADERS64 const *)&u.au8[u.MzHdr.e_lfanew];
|
---|
1639 | if ( pHdrs->Signature == IMAGE_NT_SIGNATURE
|
---|
1640 | && pHdrs->FileHeader.Machine == IMAGE_FILE_MACHINE_AMD64
|
---|
1641 | && pHdrs->FileHeader.SizeOfOptionalHeader == sizeof(pHdrs->OptionalHeader)
|
---|
1642 | && pHdrs->FileHeader.NumberOfSections >= 10 /* the kernel has lots */
|
---|
1643 | && (pHdrs->FileHeader.Characteristics & (IMAGE_FILE_EXECUTABLE_IMAGE | IMAGE_FILE_DLL))
|
---|
1644 | == IMAGE_FILE_EXECUTABLE_IMAGE
|
---|
1645 | && pHdrs->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR64_MAGIC
|
---|
1646 | && pHdrs->OptionalHeader.NumberOfRvaAndSizes == IMAGE_NUMBEROF_DIRECTORY_ENTRIES
|
---|
1647 | )
|
---|
1648 | {
|
---|
1649 | /* Find the MTE. */
|
---|
1650 | RT_ZERO(uMte.v64);
|
---|
1651 | uMte.v64.DllBase = KernelAddr.FlatPtr;
|
---|
1652 | uMte.v64.EntryPoint = KernelAddr.FlatPtr + pHdrs->OptionalHeader.AddressOfEntryPoint;
|
---|
1653 | uMte.v64.SizeOfImage = pHdrs->OptionalHeader.SizeOfImage;
|
---|
1654 | DBGFADDRESS ScanAddr;
|
---|
1655 | DBGFADDRESS HitAddr;
|
---|
1656 | rc = pVMM->pfnDBGFR3MemScan(pUVM, 0 /*idCpu*/, pVMM->pfnDBGFR3AddrFromFlat(pUVM, &ScanAddr, uStart),
|
---|
1657 | uEnd - uStart, 8 /*align*/, &uMte.v64.DllBase, 5 * sizeof(uint32_t), &HitAddr);
|
---|
1658 | while (RT_SUCCESS(rc))
|
---|
1659 | {
|
---|
1660 | /* Read the start of the MTE and check some basic members. */
|
---|
1661 | DBGFADDRESS MteAddr = HitAddr;
|
---|
1662 | rc = pVMM->pfnDBGFR3MemRead(pUVM, 0 /*idCpu*/,
|
---|
1663 | pVMM->pfnDBGFR3AddrSub(&MteAddr, RT_OFFSETOF(NTMTE64, DllBase)),
|
---|
1664 | &uMte2.v64, sizeof(uMte2.v64));
|
---|
1665 | if ( RT_SUCCESS(rc)
|
---|
1666 | && uMte2.v64.DllBase == uMte.v64.DllBase
|
---|
1667 | && uMte2.v64.EntryPoint == uMte.v64.EntryPoint
|
---|
1668 | && uMte2.v64.SizeOfImage == uMte.v64.SizeOfImage
|
---|
1669 | && WINNT64_VALID_ADDRESS(uMte2.v64.InLoadOrderLinks.Flink)
|
---|
1670 | && WINNT64_VALID_ADDRESS(uMte2.v64.BaseDllName.Buffer)
|
---|
1671 | && WINNT64_VALID_ADDRESS(uMte2.v64.FullDllName.Buffer)
|
---|
1672 | && uMte2.v64.BaseDllName.Length <= 128
|
---|
1673 | && uMte2.v64.FullDllName.Length <= 260
|
---|
1674 | )
|
---|
1675 | {
|
---|
1676 | /* Try read the base name and compare with known NT kernel names. */
|
---|
1677 | rc = pVMM->pfnDBGFR3MemRead(pUVM, 0 /*idCpu*/,
|
---|
1678 | pVMM->pfnDBGFR3AddrFromFlat(pUVM, &Addr, uMte2.v64.BaseDllName.Buffer),
|
---|
1679 | u.wsz, uMte2.v64.BaseDllName.Length);
|
---|
1680 | u.wsz[uMte2.v64.BaseDllName.Length / 2] = '\0';
|
---|
1681 | if ( RT_SUCCESS(rc)
|
---|
1682 | && ( !RTUtf16ICmp(u.wsz, g_wszKernelNames[0])
|
---|
1683 | /* || !RTUtf16ICmp(u.wsz, g_wszKernelNames[1]) */
|
---|
1684 | )
|
---|
1685 | )
|
---|
1686 | {
|
---|
1687 | /* Read the link entry of the previous entry in the list and check that its
|
---|
1688 | forward pointer points at the MTE we've found. */
|
---|
1689 | rc = pVMM->pfnDBGFR3MemRead(pUVM, 0 /*idCpu*/,
|
---|
1690 | pVMM->pfnDBGFR3AddrFromFlat(pUVM, &Addr,
|
---|
1691 | uMte2.v64.InLoadOrderLinks.Blink),
|
---|
1692 | &uMte3.v64, RT_SIZEOFMEMB(NTMTE64, InLoadOrderLinks));
|
---|
1693 | if ( RT_SUCCESS(rc)
|
---|
1694 | && uMte3.v64.InLoadOrderLinks.Flink == MteAddr.FlatPtr
|
---|
1695 | && WINNT64_VALID_ADDRESS(uMte3.v64.InLoadOrderLinks.Blink) )
|
---|
1696 | {
|
---|
1697 | Log(("DigWinNt: MteAddr=%RGv KernelAddr=%RGv SizeOfImage=%x &PsLoadedModuleList=%RGv (32-bit)\n",
|
---|
1698 | MteAddr.FlatPtr, KernelAddr.FlatPtr, uMte2.v64.SizeOfImage, Addr.FlatPtr));
|
---|
1699 | pThis->KernelAddr = KernelAddr;
|
---|
1700 | pThis->KernelMteAddr = MteAddr;
|
---|
1701 | pThis->PsLoadedModuleListAddr = Addr;
|
---|
1702 | pThis->f32Bit = false;
|
---|
1703 | pThis->fNt31 = false;
|
---|
1704 | return true;
|
---|
1705 | }
|
---|
1706 | }
|
---|
1707 | else if (RT_SUCCESS(rc))
|
---|
1708 | {
|
---|
1709 | Log2(("DigWinNt: Wrong module: MteAddr=%RGv ImageAddr=%RGv SizeOfImage=%#x '%ls'\n",
|
---|
1710 | MteAddr.FlatPtr, KernelAddr.FlatPtr, uMte2.v64.SizeOfImage, u.wsz));
|
---|
1711 | break; /* Not NT kernel */
|
---|
1712 | }
|
---|
1713 | }
|
---|
1714 |
|
---|
1715 | /* next */
|
---|
1716 | pVMM->pfnDBGFR3AddrAdd(&HitAddr, 8);
|
---|
1717 | if (HitAddr.FlatPtr < uEnd)
|
---|
1718 | rc = pVMM->pfnDBGFR3MemScan(pUVM, 0 /*idCpu*/, &HitAddr, uEnd - HitAddr.FlatPtr,
|
---|
1719 | 8 /*align*/, &uMte.v64.DllBase, 3 * sizeof(uint32_t), &HitAddr);
|
---|
1720 | else
|
---|
1721 | rc = VERR_DBGF_MEM_NOT_FOUND;
|
---|
1722 | }
|
---|
1723 | }
|
---|
1724 | }
|
---|
1725 | }
|
---|
1726 | }
|
---|
1727 | return false;
|
---|
1728 | }
|
---|
1729 |
|
---|
1730 |
|
---|
1731 | /**
|
---|
1732 | * @copydoc DBGFOSREG::pfnDestruct
|
---|
1733 | */
|
---|
1734 | static DECLCALLBACK(void) dbgDiggerWinNtDestruct(PUVM pUVM, PCVMMR3VTABLE pVMM, void *pvData)
|
---|
1735 | {
|
---|
1736 | RT_NOREF(pUVM, pVMM, pvData);
|
---|
1737 | }
|
---|
1738 |
|
---|
1739 |
|
---|
1740 | /**
|
---|
1741 | * @copydoc DBGFOSREG::pfnConstruct
|
---|
1742 | */
|
---|
1743 | static DECLCALLBACK(int) dbgDiggerWinNtConstruct(PUVM pUVM, PCVMMR3VTABLE pVMM, void *pvData)
|
---|
1744 | {
|
---|
1745 | RT_NOREF(pUVM, pVMM);
|
---|
1746 | PDBGDIGGERWINNT pThis = (PDBGDIGGERWINNT)pvData;
|
---|
1747 | pThis->fValid = false;
|
---|
1748 | pThis->f32Bit = false;
|
---|
1749 | pThis->enmVer = DBGDIGGERWINNTVER_UNKNOWN;
|
---|
1750 |
|
---|
1751 | pThis->IWinNt.u32Magic = DBGFOSIWINNT_MAGIC;
|
---|
1752 | pThis->IWinNt.pfnQueryVersion = dbgDiggerWinNtIWinNt_QueryVersion;
|
---|
1753 | pThis->IWinNt.pfnQueryKernelPtrs = dbgDiggerWinNtIWinNt_QueryKernelPtrs;
|
---|
1754 | pThis->IWinNt.pfnQueryKpcrForVCpu = dbgDiggerWinNtIWinNt_QueryKpcrForVCpu;
|
---|
1755 | pThis->IWinNt.pfnQueryCurThrdForVCpu = dbgDiggerWinNtIWinNt_QueryCurThrdForVCpu;
|
---|
1756 | pThis->IWinNt.u32EndMagic = DBGFOSIWINNT_MAGIC;
|
---|
1757 |
|
---|
1758 | #ifdef VBOX_DEBUGGER_WITH_WIN_DBG_PRINT_HOOKING
|
---|
1759 | pThis->hBpDbgPrint = NIL_DBGFBP;
|
---|
1760 | pThis->hBpOwnerDbgPrint = NIL_DBGFBPOWNER;
|
---|
1761 | #endif
|
---|
1762 |
|
---|
1763 | return VINF_SUCCESS;
|
---|
1764 | }
|
---|
1765 |
|
---|
1766 |
|
---|
1767 | const DBGFOSREG g_DBGDiggerWinNt =
|
---|
1768 | {
|
---|
1769 | /* .u32Magic = */ DBGFOSREG_MAGIC,
|
---|
1770 | /* .fFlags = */ 0,
|
---|
1771 | /* .cbData = */ sizeof(DBGDIGGERWINNT),
|
---|
1772 | /* .szName = */ "WinNT",
|
---|
1773 | /* .pfnConstruct = */ dbgDiggerWinNtConstruct,
|
---|
1774 | /* .pfnDestruct = */ dbgDiggerWinNtDestruct,
|
---|
1775 | /* .pfnProbe = */ dbgDiggerWinNtProbe,
|
---|
1776 | /* .pfnInit = */ dbgDiggerWinNtInit,
|
---|
1777 | /* .pfnRefresh = */ dbgDiggerWinNtRefresh,
|
---|
1778 | /* .pfnTerm = */ dbgDiggerWinNtTerm,
|
---|
1779 | /* .pfnQueryVersion = */ dbgDiggerWinNtQueryVersion,
|
---|
1780 | /* .pfnQueryInterface = */ dbgDiggerWinNtQueryInterface,
|
---|
1781 | /* .pfnStackUnwindAssist = */ dbgDiggerWinNtStackUnwindAssist,
|
---|
1782 | /* .u32EndMagic = */ DBGFOSREG_MAGIC
|
---|
1783 | };
|
---|
1784 |
|
---|