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reactos/ntoskrnl/ke/bug.c
Hermès Bélusca-Maïto a43bfe2916
[NTOS:CM/IO/KE] Implement minimal support for CrashControl:AutoReboot 
The REG_DWORD value `AutoReboot` stored in the registry key
`HKLM\SYSTEM\CurrentControlSet\Control\CrashControl`
(used as a boolean value), controls whether to automatically reboot
the operating system at the end of the crash dump, after a bugcheck.

ReactOS doesn't currently implement crash dumps, so only the auto-reboot
is done. (The reason of the apparent redundant `Reboot` variable in
KeBugCheckWithTf() is because that variable would be updated on return
by the not-yet-existing crash-dump helper routines called from there.)
2024-12-15 22:12:22 +01:00

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/*
* PROJECT: ReactOS Kernel
* LICENSE: GPL - See COPYING in the top level directory
* FILE: ntoskrnl/ke/bug.c
* PURPOSE: Bugcheck Support
* PROGRAMMERS: Alex Ionescu (alex.ionescu@reactos.org)
*/
/* INCLUDES ******************************************************************/
#include <ntoskrnl.h>
#ifdef KDBG
#include <kdbg/kdb.h>
#endif
#define NDEBUG
#include <debug.h>
/* GLOBALS *******************************************************************/
LIST_ENTRY KeBugcheckCallbackListHead;
LIST_ENTRY KeBugcheckReasonCallbackListHead;
KSPIN_LOCK BugCheckCallbackLock;
ULONG KeBugCheckActive, KeBugCheckOwner;
LONG KeBugCheckOwnerRecursionCount;
PMESSAGE_RESOURCE_DATA KiBugCodeMessages;
ULONG KeBugCheckCount = 1;
ULONG KiHardwareTrigger;
PUNICODE_STRING KiBugCheckDriver;
ULONG_PTR KiBugCheckData[5];
PKNMI_HANDLER_CALLBACK KiNmiCallbackListHead = NULL;
KSPIN_LOCK KiNmiCallbackListLock;
/* Jira Reporting */
UNICODE_STRING KeRosProcessorName, KeRosBiosDate, KeRosBiosVersion;
UNICODE_STRING KeRosVideoBiosDate, KeRosVideoBiosVersion;
/* PRIVATE FUNCTIONS *********************************************************/
PVOID
NTAPI
KiPcToFileHeader(IN PVOID Pc,
OUT PLDR_DATA_TABLE_ENTRY *LdrEntry,
IN BOOLEAN DriversOnly,
OUT PBOOLEAN InKernel)
{
ULONG i = 0;
PVOID ImageBase, PcBase = NULL;
PLDR_DATA_TABLE_ENTRY Entry;
PLIST_ENTRY ListHead, NextEntry;
/* Check which list we should use */
ListHead = (KeLoaderBlock) ? &KeLoaderBlock->LoadOrderListHead :
&PsLoadedModuleList;
/* Assume no */
*InKernel = FALSE;
/* Set list pointers and make sure it's valid */
NextEntry = ListHead->Flink;
if (NextEntry)
{
/* Start loop */
while (NextEntry != ListHead)
{
/* Increase entry */
i++;
/* Check if this is a kernel entry and we only want drivers */
if ((i <= 2) && (DriversOnly != FALSE))
{
/* Skip it */
NextEntry = NextEntry->Flink;
continue;
}
/* Get the loader entry */
Entry = CONTAINING_RECORD(NextEntry,
LDR_DATA_TABLE_ENTRY,
InLoadOrderLinks);
/* Move to the next entry */
NextEntry = NextEntry->Flink;
ImageBase = Entry->DllBase;
/* Check if this is the right one */
if (((ULONG_PTR)Pc >= (ULONG_PTR)Entry->DllBase) &&
((ULONG_PTR)Pc < ((ULONG_PTR)Entry->DllBase + Entry->SizeOfImage)))
{
/* Return this entry */
*LdrEntry = Entry;
PcBase = ImageBase;
/* Check if this was a kernel or HAL entry */
if (i <= 2) *InKernel = TRUE;
break;
}
}
}
/* Return the base address */
return PcBase;
}
PVOID
NTAPI
KiRosPcToUserFileHeader(IN PVOID Pc,
OUT PLDR_DATA_TABLE_ENTRY *LdrEntry)
{
PVOID ImageBase, PcBase = NULL;
PLDR_DATA_TABLE_ENTRY Entry;
PLIST_ENTRY ListHead, NextEntry;
/*
* We know this is valid because we should only be called after a
* succesfull address from RtlWalkFrameChain for UserMode, which
* validates everything for us.
*/
ListHead = &KeGetCurrentThread()->
Teb->ProcessEnvironmentBlock->Ldr->InLoadOrderModuleList;
/* Set list pointers and make sure it's valid */
NextEntry = ListHead->Flink;
if (NextEntry)
{
/* Start loop */
while (NextEntry != ListHead)
{
/* Get the loader entry */
Entry = CONTAINING_RECORD(NextEntry,
LDR_DATA_TABLE_ENTRY,
InLoadOrderLinks);
/* Move to the next entry */
NextEntry = NextEntry->Flink;
ImageBase = Entry->DllBase;
/* Check if this is the right one */
if (((ULONG_PTR)Pc >= (ULONG_PTR)Entry->DllBase) &&
((ULONG_PTR)Pc < ((ULONG_PTR)Entry->DllBase + Entry->SizeOfImage)))
{
/* Return this entry */
*LdrEntry = Entry;
PcBase = ImageBase;
break;
}
}
}
/* Return the base address */
return PcBase;
}
USHORT
NTAPI
KeRosCaptureUserStackBackTrace(IN ULONG FramesToSkip,
IN ULONG FramesToCapture,
OUT PVOID *BackTrace,
OUT PULONG BackTraceHash OPTIONAL)
{
PVOID Frames[2 * 64];
ULONG FrameCount;
ULONG Hash = 0, i;
/* Skip a frame for the caller */
FramesToSkip++;
/* Don't go past the limit */
if ((FramesToCapture + FramesToSkip) >= 128) return 0;
/* Do the back trace */
FrameCount = RtlWalkFrameChain(Frames, FramesToCapture + FramesToSkip, 1);
/* Make sure we're not skipping all of them */
if (FrameCount <= FramesToSkip) return 0;
/* Loop all the frames */
for (i = 0; i < FramesToCapture; i++)
{
/* Don't go past the limit */
if ((FramesToSkip + i) >= FrameCount) break;
/* Save this entry and hash it */
BackTrace[i] = Frames[FramesToSkip + i];
Hash += PtrToUlong(BackTrace[i]);
}
/* Write the hash */
if (BackTraceHash) *BackTraceHash = Hash;
/* Clear the other entries and return count */
RtlFillMemoryUlong(Frames, 128, 0);
return (USHORT)i;
}
VOID
FASTCALL
KeRosDumpStackFrameArray(IN PULONG_PTR Frames,
IN ULONG FrameCount)
{
ULONG i;
ULONG_PTR Addr;
BOOLEAN InSystem;
PVOID p;
/* GCC complaints that it may be used uninitialized */
PLDR_DATA_TABLE_ENTRY LdrEntry = NULL;
/* Loop them */
for (i = 0; i < FrameCount; i++)
{
/* Get the EIP */
Addr = Frames[i];
if (!Addr)
{
break;
}
/* Get the base for this file */
if (Addr > (ULONG_PTR)MmHighestUserAddress)
{
/* We are in kernel */
p = KiPcToFileHeader((PVOID)Addr, &LdrEntry, FALSE, &InSystem);
}
else
{
/* We are in user land */
p = KiRosPcToUserFileHeader((PVOID)Addr, &LdrEntry);
}
if (p)
{
#ifdef KDBG
if (!KdbSymPrintAddress((PVOID)Addr, NULL))
#endif
{
CHAR AnsiName[64];
/* Convert module name to ANSI and print it */
KeBugCheckUnicodeToAnsi(&LdrEntry->BaseDllName,
AnsiName,
sizeof(AnsiName));
Addr -= (ULONG_PTR)LdrEntry->DllBase;
DbgPrint("<%s: %p>", AnsiName, (PVOID)Addr);
}
}
else
{
/* Print only the address */
DbgPrint("<%p>", (PVOID)Addr);
}
/* Go to the next frame */
DbgPrint("\n");
}
}
VOID
NTAPI
KeRosDumpStackFrames(IN PULONG_PTR Frame OPTIONAL,
IN ULONG FrameCount OPTIONAL)
{
ULONG_PTR Frames[32];
ULONG RealFrameCount;
/* If the caller didn't ask, assume 32 frames */
if (!FrameCount || FrameCount > 32) FrameCount = 32;
if (Frame)
{
/* Dump them */
KeRosDumpStackFrameArray(Frame, FrameCount);
}
else
{
/* Get the current frames (skip the two. One for the dumper, one for the caller) */
RealFrameCount = RtlCaptureStackBackTrace(2, FrameCount, (PVOID*)Frames, NULL);
DPRINT1("RealFrameCount =%lu\n", RealFrameCount);
/* Dump them */
KeRosDumpStackFrameArray(Frames, RealFrameCount);
/* Count left for user mode? */
if (FrameCount - RealFrameCount > 0)
{
/* Get the current frames */
RealFrameCount = KeRosCaptureUserStackBackTrace(-1, FrameCount - RealFrameCount, (PVOID*)Frames, NULL);
/* Dump them */
KeRosDumpStackFrameArray(Frames, RealFrameCount);
}
}
}
CODE_SEG("INIT")
VOID
NTAPI
KiInitializeBugCheck(VOID)
{
PMESSAGE_RESOURCE_DATA BugCheckData;
LDR_RESOURCE_INFO ResourceInfo;
PIMAGE_RESOURCE_DATA_ENTRY ResourceDataEntry;
NTSTATUS Status;
PLDR_DATA_TABLE_ENTRY LdrEntry;
/* Get the kernel entry */
LdrEntry = CONTAINING_RECORD(KeLoaderBlock->LoadOrderListHead.Flink,
LDR_DATA_TABLE_ENTRY,
InLoadOrderLinks);
/* Cache the Bugcheck Message Strings. Prepare the Lookup Data */
ResourceInfo.Type = 11;
ResourceInfo.Name = 1;
ResourceInfo.Language = 9;
/* Do the lookup. */
Status = LdrFindResource_U(LdrEntry->DllBase,
&ResourceInfo,
RESOURCE_DATA_LEVEL,
&ResourceDataEntry);
/* Make sure it worked */
if (NT_SUCCESS(Status))
{
/* Now actually get a pointer to it */
Status = LdrAccessResource(LdrEntry->DllBase,
ResourceDataEntry,
(PVOID*)&BugCheckData,
NULL);
if (NT_SUCCESS(Status)) KiBugCodeMessages = BugCheckData;
}
}
BOOLEAN
NTAPI
KeGetBugMessageText(IN ULONG BugCheckCode,
OUT PANSI_STRING OutputString OPTIONAL)
{
ULONG i;
ULONG IdOffset;
PMESSAGE_RESOURCE_ENTRY MessageEntry;
PCHAR BugCode;
USHORT Length;
BOOLEAN Result = FALSE;
/* Make sure we're not bugchecking too early */
if (!KiBugCodeMessages) return Result;
/*
* Globally protect in SEH as we are trying to access data in
* dire situations, and potentially going to patch it (see below).
*/
_SEH2_TRY
{
/*
* Make the kernel resource section writable, as we are going to manually
* trim the trailing newlines in the bugcheck resource message in place,
* when OutputString is NULL and before displaying it on screen.
*/
MmMakeKernelResourceSectionWritable();
/* Find the message. This code is based on RtlFindMesssage */
for (i = 0; i < KiBugCodeMessages->NumberOfBlocks; i++)
{
/* Check if the ID matches */
if ((BugCheckCode >= KiBugCodeMessages->Blocks[i].LowId) &&
(BugCheckCode <= KiBugCodeMessages->Blocks[i].HighId))
{
/* Get offset to entry */
MessageEntry = (PMESSAGE_RESOURCE_ENTRY)
((ULONG_PTR)KiBugCodeMessages + KiBugCodeMessages->Blocks[i].OffsetToEntries);
IdOffset = BugCheckCode - KiBugCodeMessages->Blocks[i].LowId;
/* Advance in the entries until finding it */
while (IdOffset--)
{
MessageEntry = (PMESSAGE_RESOURCE_ENTRY)
((ULONG_PTR)MessageEntry + MessageEntry->Length);
}
/* Make sure it's not Unicode */
ASSERT(!(MessageEntry->Flags & MESSAGE_RESOURCE_UNICODE));
/* Get the final code */
BugCode = (PCHAR)MessageEntry->Text;
Length = (USHORT)strlen(BugCode);
/* Handle trailing newlines */
while ((Length > 0) && ((BugCode[Length - 1] == '\n') ||
(BugCode[Length - 1] == '\r') ||
(BugCode[Length - 1] == ANSI_NULL)))
{
/* Directly trim the newline in place if we don't return the string */
if (!OutputString) BugCode[Length - 1] = ANSI_NULL;
/* Skip the trailing newline */
Length--;
}
/* Check if caller wants an output string */
if (OutputString)
{
/* Return it in the OutputString */
OutputString->Buffer = BugCode;
OutputString->Length = Length;
OutputString->MaximumLength = Length;
}
else
{
/* Direct output to screen */
InbvDisplayString(BugCode);
InbvDisplayString("\r");
}
/* We're done */
Result = TRUE;
break;
}
}
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
}
_SEH2_END;
/* Return the result */
return Result;
}
VOID
NTAPI
KiDoBugCheckCallbacks(VOID)
{
PKBUGCHECK_CALLBACK_RECORD CurrentRecord;
PLIST_ENTRY ListHead, NextEntry, LastEntry;
ULONG_PTR Checksum;
/* First make sure that the list is initialized... it might not be */
ListHead = &KeBugcheckCallbackListHead;
if ((!ListHead->Flink) || (!ListHead->Blink))
return;
/* Loop the list */
LastEntry = ListHead;
NextEntry = ListHead->Flink;
while (NextEntry != ListHead)
{
/* Get the reord */
CurrentRecord = CONTAINING_RECORD(NextEntry,
KBUGCHECK_CALLBACK_RECORD,
Entry);
/* Validate it */
// TODO/FIXME: Check whether the memory CurrentRecord points to
// is still accessible and valid!
if (CurrentRecord->Entry.Blink != LastEntry) return;
Checksum = (ULONG_PTR)CurrentRecord->CallbackRoutine;
Checksum += (ULONG_PTR)CurrentRecord->Buffer;
Checksum += (ULONG_PTR)CurrentRecord->Length;
Checksum += (ULONG_PTR)CurrentRecord->Component;
/* Make sure it's inserted and validated */
if ((CurrentRecord->State == BufferInserted) &&
(CurrentRecord->Checksum == Checksum))
{
/* Call the routine */
CurrentRecord->State = BufferStarted;
_SEH2_TRY
{
(CurrentRecord->CallbackRoutine)(CurrentRecord->Buffer,
CurrentRecord->Length);
CurrentRecord->State = BufferFinished;
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
CurrentRecord->State = BufferIncomplete;
}
_SEH2_END;
}
/* Go to the next entry */
LastEntry = NextEntry;
NextEntry = NextEntry->Flink;
}
}
VOID
NTAPI
KiBugCheckDebugBreak(IN ULONG StatusCode)
{
/*
* Wrap this in SEH so we don't crash if
* there is no debugger or if it disconnected
*/
DoBreak:
_SEH2_TRY
{
/* Breakpoint */
DbgBreakPointWithStatus(StatusCode);
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
/* No debugger, halt the CPU */
HalHaltSystem();
}
_SEH2_END;
/* Break again if this wasn't first try */
if (StatusCode != DBG_STATUS_BUGCHECK_FIRST) goto DoBreak;
}
PCHAR
NTAPI
KeBugCheckUnicodeToAnsi(IN PUNICODE_STRING Unicode,
OUT PCHAR Ansi,
IN ULONG Length)
{
PCHAR p;
PWCHAR pw;
ULONG i;
/* Set length and normalize it */
i = Unicode->Length / sizeof(WCHAR);
i = min(i, Length - 1);
/* Set source and destination, and copy */
pw = Unicode->Buffer;
p = Ansi;
while (i--) *p++ = (CHAR)*pw++;
/* Null terminate and return */
*p = ANSI_NULL;
return Ansi;
}
VOID
NTAPI
KiDumpParameterImages(IN PCHAR Message,
IN PULONG_PTR Parameters,
IN ULONG ParameterCount,
IN PKE_BUGCHECK_UNICODE_TO_ANSI ConversionRoutine)
{
ULONG i;
BOOLEAN InSystem;
PLDR_DATA_TABLE_ENTRY LdrEntry;
PVOID ImageBase;
PUNICODE_STRING DriverName;
CHAR AnsiName[32];
PIMAGE_NT_HEADERS NtHeader;
ULONG TimeStamp;
BOOLEAN FirstRun = TRUE;
/* Loop parameters */
for (i = 0; i < ParameterCount; i++)
{
/* Get the base for this parameter */
ImageBase = KiPcToFileHeader((PVOID)Parameters[i],
&LdrEntry,
FALSE,
&InSystem);
if (!ImageBase)
{
/* FIXME: Add code to check for unloaded drivers */
DPRINT1("Potentially unloaded driver!\n");
continue;
}
else
{
/* Get the NT Headers and Timestamp */
NtHeader = RtlImageNtHeader(LdrEntry->DllBase);
TimeStamp = NtHeader->FileHeader.TimeDateStamp;
/* Convert the driver name */
DriverName = &LdrEntry->BaseDllName;
ConversionRoutine(&LdrEntry->BaseDllName,
AnsiName,
sizeof(AnsiName));
}
/* Format driver name */
sprintf(Message,
"%s** %12s - Address %p base at %p, DateStamp %08lx\r\n",
FirstRun ? "\r\n*":"*",
AnsiName,
(PVOID)Parameters[i],
ImageBase,
TimeStamp);
/* Check if we only had one parameter */
if (ParameterCount <= 1)
{
/* Then just save the name */
KiBugCheckDriver = DriverName;
}
else
{
/* Otherwise, display the message */
InbvDisplayString(Message);
}
/* Loop again */
FirstRun = FALSE;
}
}
VOID
NTAPI
KiDisplayBlueScreen(IN ULONG MessageId,
IN BOOLEAN IsHardError,
IN PCHAR HardErrCaption OPTIONAL,
IN PCHAR HardErrMessage OPTIONAL,
IN PCHAR Message)
{
ULONG BugCheckCode = (ULONG)KiBugCheckData[0];
BOOLEAN Enable = TRUE;
CHAR AnsiName[107];
/* Enable headless support for bugcheck */
HeadlessDispatch(HeadlessCmdStartBugCheck,
NULL, 0, NULL, NULL);
HeadlessDispatch(HeadlessCmdEnableTerminal,
&Enable, sizeof(Enable),
NULL, NULL);
HeadlessDispatch(HeadlessCmdSendBlueScreenData,
&BugCheckCode, sizeof(BugCheckCode),
NULL, NULL);
/* Check if bootvid is installed */
if (InbvIsBootDriverInstalled())
{
/* Acquire ownership and reset the display */
InbvAcquireDisplayOwnership();
InbvResetDisplay();
/* Display blue screen */
InbvSolidColorFill(0, 0, SCREEN_WIDTH - 1, SCREEN_HEIGHT - 1, BV_COLOR_BLUE);
InbvSetTextColor(BV_COLOR_WHITE);
InbvInstallDisplayStringFilter(NULL);
InbvEnableDisplayString(TRUE);
InbvSetScrollRegion(0, 0, SCREEN_WIDTH - 1, SCREEN_HEIGHT - 1);
}
/* Check if this is a hard error */
if (IsHardError)
{
/* Display caption and message */
if (HardErrCaption) InbvDisplayString(HardErrCaption);
if (HardErrMessage) InbvDisplayString(HardErrMessage);
}
/* Begin the display */
InbvDisplayString("\r\n");
/* Print out initial message */
KeGetBugMessageText(BUGCHECK_MESSAGE_INTRO, NULL);
InbvDisplayString("\r\n\r\n");
/* Check if we have a driver */
if (KiBugCheckDriver)
{
/* Print out into to driver name */
KeGetBugMessageText(BUGCODE_ID_DRIVER, NULL);
/* Convert and print out driver name */
KeBugCheckUnicodeToAnsi(KiBugCheckDriver, AnsiName, sizeof(AnsiName));
InbvDisplayString(" ");
InbvDisplayString(AnsiName);
InbvDisplayString("\r\n\r\n");
}
/* Check if this is the generic message */
if (MessageId == BUGCODE_PSS_MESSAGE)
{
/* It is, so get the bug code string as well */
KeGetBugMessageText(BugCheckCode, NULL);
InbvDisplayString("\r\n\r\n");
}
/* Print second introduction message */
KeGetBugMessageText(PSS_MESSAGE_INTRO, NULL);
InbvDisplayString("\r\n\r\n");
/* Get the bug code string */
KeGetBugMessageText(MessageId, NULL);
InbvDisplayString("\r\n\r\n");
/* Print message for technical information */
KeGetBugMessageText(BUGCHECK_TECH_INFO, NULL);
/* Show the technical Data */
RtlStringCbPrintfA(AnsiName,
sizeof(AnsiName),
"\r\n\r\n*** STOP: 0x%08lX (0x%p,0x%p,0x%p,0x%p)\r\n\r\n",
BugCheckCode,
(PVOID)KiBugCheckData[1],
(PVOID)KiBugCheckData[2],
(PVOID)KiBugCheckData[3],
(PVOID)KiBugCheckData[4]);
InbvDisplayString(AnsiName);
/* Check if we have a driver*/
if (KiBugCheckDriver)
{
/* Display technical driver data */
InbvDisplayString(Message);
}
else
{
/* Dump parameter information */
KiDumpParameterImages(Message,
(PVOID)&KiBugCheckData[1],
4,
KeBugCheckUnicodeToAnsi);
}
}
DECLSPEC_NORETURN
VOID
NTAPI
KeBugCheckWithTf(IN ULONG BugCheckCode,
IN ULONG_PTR BugCheckParameter1,
IN ULONG_PTR BugCheckParameter2,
IN ULONG_PTR BugCheckParameter3,
IN ULONG_PTR BugCheckParameter4,
IN PKTRAP_FRAME TrapFrame)
{
PKPRCB Prcb = KeGetCurrentPrcb();
CONTEXT Context;
ULONG MessageId;
CHAR AnsiName[128];
BOOLEAN IsSystem, IsHardError = FALSE, Reboot = FALSE;
PCHAR HardErrCaption = NULL, HardErrMessage = NULL;
PVOID Pc = NULL, Memory;
PVOID DriverBase;
PLDR_DATA_TABLE_ENTRY LdrEntry;
PULONG_PTR HardErrorParameters;
KIRQL OldIrql;
/* Set active bugcheck */
KeBugCheckActive = TRUE;
KiBugCheckDriver = NULL;
/* Check if this is power failure simulation */
if (BugCheckCode == POWER_FAILURE_SIMULATE)
{
/* Call the Callbacks and reboot */
KiDoBugCheckCallbacks();
HalReturnToFirmware(HalRebootRoutine);
}
/* Save the IRQL and set hardware trigger */
Prcb->DebuggerSavedIRQL = KeGetCurrentIrql();
InterlockedIncrement((PLONG)&KiHardwareTrigger);
/* Capture the CPU Context */
RtlCaptureContext(&Prcb->ProcessorState.ContextFrame);
KiSaveProcessorControlState(&Prcb->ProcessorState);
Context = Prcb->ProcessorState.ContextFrame;
/* FIXME: Call the Watchdog if it's registered */
/* Check which bugcode this is */
switch (BugCheckCode)
{
/* These bug checks already have detailed messages, keep them */
case UNEXPECTED_KERNEL_MODE_TRAP:
case DRIVER_CORRUPTED_EXPOOL:
case ACPI_BIOS_ERROR:
case ACPI_BIOS_FATAL_ERROR:
case THREAD_STUCK_IN_DEVICE_DRIVER:
case DATA_BUS_ERROR:
case FAT_FILE_SYSTEM:
case NO_MORE_SYSTEM_PTES:
case INACCESSIBLE_BOOT_DEVICE:
/* Keep the same code */
MessageId = BugCheckCode;
break;
/* Check if this is a kernel-mode exception */
case KERNEL_MODE_EXCEPTION_NOT_HANDLED:
case SYSTEM_THREAD_EXCEPTION_NOT_HANDLED:
case KMODE_EXCEPTION_NOT_HANDLED:
/* Use the generic text message */
MessageId = KMODE_EXCEPTION_NOT_HANDLED;
break;
/* File-system errors */
case NTFS_FILE_SYSTEM:
/* Use the generic message for FAT */
MessageId = FAT_FILE_SYSTEM;
break;
/* Check if this is a coruption of the Mm's Pool */
case DRIVER_CORRUPTED_MMPOOL:
/* Use generic corruption message */
MessageId = DRIVER_CORRUPTED_EXPOOL;
break;
/* Check if this is a signature check failure */
case STATUS_SYSTEM_IMAGE_BAD_SIGNATURE:
/* Use the generic corruption message */
MessageId = BUGCODE_PSS_MESSAGE_SIGNATURE;
break;
/* All other codes */
default:
/* Use the default bugcheck message */
MessageId = BUGCODE_PSS_MESSAGE;
break;
}
/* Save bugcheck data */
KiBugCheckData[0] = BugCheckCode;
KiBugCheckData[1] = BugCheckParameter1;
KiBugCheckData[2] = BugCheckParameter2;
KiBugCheckData[3] = BugCheckParameter3;
KiBugCheckData[4] = BugCheckParameter4;
/* Now check what bugcheck this is */
switch (BugCheckCode)
{
/* Invalid access to R/O memory or Unhandled KM Exception */
case KERNEL_MODE_EXCEPTION_NOT_HANDLED:
case ATTEMPTED_WRITE_TO_READONLY_MEMORY:
case ATTEMPTED_EXECUTE_OF_NOEXECUTE_MEMORY:
{
/* Check if we have a trap frame */
if (!TrapFrame)
{
/* Use parameter 3 as a trap frame, if it exists */
if (BugCheckParameter3) TrapFrame = (PVOID)BugCheckParameter3;
}
/* Check if we got one now and if we need to get the Program Counter */
if ((TrapFrame) &&
(BugCheckCode != KERNEL_MODE_EXCEPTION_NOT_HANDLED))
{
/* Get the Program Counter */
Pc = (PVOID)KeGetTrapFramePc(TrapFrame);
}
break;
}
/* Wrong IRQL */
case IRQL_NOT_LESS_OR_EQUAL:
{
/*
* The NT kernel has 3 special sections:
* MISYSPTE, POOLMI and POOLCODE. The bug check code can
* determine in which of these sections this bugcode happened
* and provide a more detailed analysis. For now, we don't.
*/
/* Program Counter is in parameter 4 */
Pc = (PVOID)BugCheckParameter4;
/* Get the driver base */
DriverBase = KiPcToFileHeader(Pc,
&LdrEntry,
FALSE,
&IsSystem);
if (IsSystem)
{
/*
* The error happened inside the kernel or HAL.
* Get the memory address that was being referenced.
*/
Memory = (PVOID)BugCheckParameter1;
/* Find to which driver it belongs */
DriverBase = KiPcToFileHeader(Memory,
&LdrEntry,
TRUE,
&IsSystem);
if (DriverBase)
{
/* Get the driver name and update the bug code */
KiBugCheckDriver = &LdrEntry->BaseDllName;
KiBugCheckData[0] = DRIVER_PORTION_MUST_BE_NONPAGED;
}
else
{
/* Find the driver that unloaded at this address */
KiBugCheckDriver = NULL; // FIXME: ROS can't locate
/* Check if the cause was an unloaded driver */
if (KiBugCheckDriver)
{
/* Update bug check code */
KiBugCheckData[0] =
SYSTEM_SCAN_AT_RAISED_IRQL_CAUGHT_IMPROPER_DRIVER_UNLOAD;
}
}
}
else
{
/* Update the bug check code */
KiBugCheckData[0] = DRIVER_IRQL_NOT_LESS_OR_EQUAL;
}
/* Clear Pc so we don't look it up later */
Pc = NULL;
break;
}
/* Hard error */
case FATAL_UNHANDLED_HARD_ERROR:
{
/* Copy bug check data from hard error */
HardErrorParameters = (PULONG_PTR)BugCheckParameter2;
KiBugCheckData[0] = BugCheckParameter1;
KiBugCheckData[1] = HardErrorParameters[0];
KiBugCheckData[2] = HardErrorParameters[1];
KiBugCheckData[3] = HardErrorParameters[2];
KiBugCheckData[4] = HardErrorParameters[3];
/* Remember that this is hard error and set the caption/message */
IsHardError = TRUE;
HardErrCaption = (PCHAR)BugCheckParameter3;
HardErrMessage = (PCHAR)BugCheckParameter4;
break;
}
/* Page fault */
case PAGE_FAULT_IN_NONPAGED_AREA:
{
/* Assume no driver */
DriverBase = NULL;
/* Check if we have a trap frame */
if (!TrapFrame)
{
/* We don't, use parameter 3 if possible */
if (BugCheckParameter3) TrapFrame = (PVOID)BugCheckParameter3;
}
/* Check if we have a frame now */
if (TrapFrame)
{
/* Get the Program Counter */
Pc = (PVOID)KeGetTrapFramePc(TrapFrame);
KiBugCheckData[3] = (ULONG_PTR)Pc;
/* Find out if was in the kernel or drivers */
DriverBase = KiPcToFileHeader(Pc,
&LdrEntry,
FALSE,
&IsSystem);
}
else
{
/* Can't blame a driver, assume system */
IsSystem = TRUE;
}
/* FIXME: Check for session pool in addition to special pool */
/* Special pool has its own bug check codes */
if (MmIsSpecialPoolAddress((PVOID)BugCheckParameter1))
{
if (MmIsSpecialPoolAddressFree((PVOID)BugCheckParameter1))
{
KiBugCheckData[0] = IsSystem
? PAGE_FAULT_IN_FREED_SPECIAL_POOL
: DRIVER_PAGE_FAULT_IN_FREED_SPECIAL_POOL;
}
else
{
KiBugCheckData[0] = IsSystem
? PAGE_FAULT_BEYOND_END_OF_ALLOCATION
: DRIVER_PAGE_FAULT_BEYOND_END_OF_ALLOCATION;
}
}
else if (!DriverBase)
{
/* Find the driver that unloaded at this address */
KiBugCheckDriver = NULL; // FIXME: ROS can't locate
/* Check if the cause was an unloaded driver */
if (KiBugCheckDriver)
{
KiBugCheckData[0] =
DRIVER_UNLOADED_WITHOUT_CANCELLING_PENDING_OPERATIONS;
}
}
break;
}
/* Check if the driver forgot to unlock pages */
case DRIVER_LEFT_LOCKED_PAGES_IN_PROCESS:
/* Program Counter is in parameter 1 */
Pc = (PVOID)BugCheckParameter1;
break;
/* Check if the driver consumed too many PTEs */
case DRIVER_USED_EXCESSIVE_PTES:
/* Loader entry is in parameter 1 */
LdrEntry = (PVOID)BugCheckParameter1;
KiBugCheckDriver = &LdrEntry->BaseDllName;
break;
/* Check if the driver has a stuck thread */
case THREAD_STUCK_IN_DEVICE_DRIVER:
/* The name is in Parameter 3 */
KiBugCheckDriver = (PVOID)BugCheckParameter3;
break;
/* Anything else */
default:
break;
}
/* Do we have a driver name? */
if (KiBugCheckDriver)
{
/* Convert it to ANSI */
KeBugCheckUnicodeToAnsi(KiBugCheckDriver, AnsiName, sizeof(AnsiName));
}
else
{
/* Do we have a Program Counter? */
if (Pc)
{
/* Dump image name */
KiDumpParameterImages(AnsiName,
(PULONG_PTR)&Pc,
1,
KeBugCheckUnicodeToAnsi);
}
}
/* Check if we need to save the context for KD */
if (!KdPitchDebugger) KdDebuggerDataBlock.SavedContext = (ULONG_PTR)&Context;
/* Check if a debugger is connected */
if ((BugCheckCode != MANUALLY_INITIATED_CRASH) && (KdDebuggerEnabled))
{
/* Crash on the debugger console */
DbgPrint("\n*** Fatal System Error: 0x%08lx\n"
" (0x%p,0x%p,0x%p,0x%p)\n\n",
KiBugCheckData[0],
KiBugCheckData[1],
KiBugCheckData[2],
KiBugCheckData[3],
KiBugCheckData[4]);
/* Check if the debugger isn't currently connected */
if (!KdDebuggerNotPresent)
{
/* Check if we have a driver to blame */
if (KiBugCheckDriver)
{
/* Dump it */
DbgPrint("Driver at fault: %s.\n", AnsiName);
}
/* Check if this was a hard error */
if (IsHardError)
{
/* Print caption and message */
if (HardErrCaption) DbgPrint(HardErrCaption);
if (HardErrMessage) DbgPrint(HardErrMessage);
}
/* Break in the debugger */
KiBugCheckDebugBreak(DBG_STATUS_BUGCHECK_FIRST);
}
}
/* Raise IRQL to HIGH_LEVEL */
_disable();
KeRaiseIrql(HIGH_LEVEL, &OldIrql);
/* Avoid recursion */
if (!InterlockedDecrement((PLONG)&KeBugCheckCount))
{
#ifdef CONFIG_SMP
/* Set CPU that is bug checking now */
KeBugCheckOwner = Prcb->Number;
/* Freeze the other CPUs */
for (ULONG i = 0; i < KeNumberProcessors; i++)
{
if (i != Prcb->Number)
{
/* Send the IPI */
KiIpiSend(AFFINITY_MASK(i), IPI_FREEZE);
}
}
/* Give the other CPUs one second to catch up */
KeStallExecutionProcessor(1000000);
#endif
/* Display the BSOD */
KiDisplayBlueScreen(MessageId,
IsHardError,
HardErrCaption,
HardErrMessage,
AnsiName);
// TODO/FIXME: Run the registered reason-callbacks from
// the KeBugcheckReasonCallbackListHead list with the
// KbCallbackReserved1 reason.
/* Check if the debugger is disabled but we can enable it */
if (!(KdDebuggerEnabled) && !(KdPitchDebugger))
{
/* Enable it */
KdEnableDebuggerWithLock(FALSE);
}
else
{
/* Otherwise, print the last line */
InbvDisplayString("\r\n");
}
/* Save the context */
Prcb->ProcessorState.ContextFrame = Context;
/* FIXME: Support Triage Dump */
/* FIXME: Write the crash dump */
// TODO: The crash-dump helper must set the Reboot variable.
Reboot = !!IopAutoReboot;
}
else
{
/* Increase recursion count */
KeBugCheckOwnerRecursionCount++;
if (KeBugCheckOwnerRecursionCount == 2)
{
/* Break in the debugger */
KiBugCheckDebugBreak(DBG_STATUS_BUGCHECK_SECOND);
}
else if (KeBugCheckOwnerRecursionCount > 2)
{
/* Halt execution */
while (TRUE);
}
}
/* Call the Callbacks */
KiDoBugCheckCallbacks();
/* FIXME: Call Watchdog if enabled */
/* Check if we have to reboot */
if (Reboot)
{
/* Unload symbols */
DbgUnLoadImageSymbols(NULL, (PVOID)MAXULONG_PTR, 0);
HalReturnToFirmware(HalRebootRoutine);
}
/* Attempt to break in the debugger (otherwise halt CPU) */
KiBugCheckDebugBreak(DBG_STATUS_BUGCHECK_SECOND);
/* Shouldn't get here */
ASSERT(FALSE);
while (TRUE);
}
BOOLEAN
NTAPI
KiHandleNmi(VOID)
{
BOOLEAN Handled = FALSE;
PKNMI_HANDLER_CALLBACK NmiData;
/* Parse the list of callbacks */
NmiData = KiNmiCallbackListHead;
while (NmiData)
{
/* Save if this callback has handled it -- all it takes is one */
Handled |= NmiData->Callback(NmiData->Context, Handled);
NmiData = NmiData->Next;
}
/* Has anyone handled this? */
return Handled;
}
/* PUBLIC FUNCTIONS **********************************************************/
/*
* @unimplemented
*/
NTSTATUS
NTAPI
KeInitializeCrashDumpHeader(IN ULONG Type,
IN ULONG Flags,
OUT PVOID Buffer,
IN ULONG BufferSize,
OUT ULONG BufferNeeded OPTIONAL)
{
UNIMPLEMENTED;
return STATUS_UNSUCCESSFUL;
}
/*
* @implemented
*/
BOOLEAN
NTAPI
KeDeregisterBugCheckCallback(IN PKBUGCHECK_CALLBACK_RECORD CallbackRecord)
{
KIRQL OldIrql;
BOOLEAN Status = FALSE;
/* Raise IRQL to High */
KeRaiseIrql(HIGH_LEVEL, &OldIrql);
/* Check the Current State */
if (CallbackRecord->State == BufferInserted)
{
/* Reset state and remove from list */
CallbackRecord->State = BufferEmpty;
RemoveEntryList(&CallbackRecord->Entry);
Status = TRUE;
}
/* Lower IRQL and return */
KeLowerIrql(OldIrql);
return Status;
}
/*
* @implemented
*/
BOOLEAN
NTAPI
KeDeregisterBugCheckReasonCallback(
IN PKBUGCHECK_REASON_CALLBACK_RECORD CallbackRecord)
{
KIRQL OldIrql;
BOOLEAN Status = FALSE;
/* Raise IRQL to High */
KeRaiseIrql(HIGH_LEVEL, &OldIrql);
/* Check the Current State */
if (CallbackRecord->State == BufferInserted)
{
/* Reset state and remove from list */
CallbackRecord->State = BufferEmpty;
RemoveEntryList(&CallbackRecord->Entry);
Status = TRUE;
}
/* Lower IRQL and return */
KeLowerIrql(OldIrql);
return Status;
}
/*
* @implemented
*/
BOOLEAN
NTAPI
KeRegisterBugCheckCallback(IN PKBUGCHECK_CALLBACK_RECORD CallbackRecord,
IN PKBUGCHECK_CALLBACK_ROUTINE CallbackRoutine,
IN PVOID Buffer,
IN ULONG Length,
IN PUCHAR Component)
{
KIRQL OldIrql;
BOOLEAN Status = FALSE;
/* Raise IRQL to High */
KeRaiseIrql(HIGH_LEVEL, &OldIrql);
/* Check the Current State first so we don't double-register */
if (CallbackRecord->State == BufferEmpty)
{
/* Set the Callback Settings and insert into the list */
CallbackRecord->Length = Length;
CallbackRecord->Buffer = Buffer;
CallbackRecord->Component = Component;
CallbackRecord->CallbackRoutine = CallbackRoutine;
CallbackRecord->State = BufferInserted;
InsertTailList(&KeBugcheckCallbackListHead, &CallbackRecord->Entry);
Status = TRUE;
}
/* Lower IRQL and return */
KeLowerIrql(OldIrql);
return Status;
}
/*
* @implemented
*/
BOOLEAN
NTAPI
KeRegisterBugCheckReasonCallback(
IN PKBUGCHECK_REASON_CALLBACK_RECORD CallbackRecord,
IN PKBUGCHECK_REASON_CALLBACK_ROUTINE CallbackRoutine,
IN KBUGCHECK_CALLBACK_REASON Reason,
IN PUCHAR Component)
{
KIRQL OldIrql;
BOOLEAN Status = FALSE;
/* Raise IRQL to High */
KeRaiseIrql(HIGH_LEVEL, &OldIrql);
/* Check the Current State first so we don't double-register */
if (CallbackRecord->State == BufferEmpty)
{
/* Set the Callback Settings and insert into the list */
CallbackRecord->Component = Component;
CallbackRecord->CallbackRoutine = CallbackRoutine;
CallbackRecord->State = BufferInserted;
CallbackRecord->Reason = Reason;
InsertTailList(&KeBugcheckReasonCallbackListHead,
&CallbackRecord->Entry);
Status = TRUE;
}
/* Lower IRQL and return */
KeLowerIrql(OldIrql);
return Status;
}
/*
* @implemented
*/
PVOID
NTAPI
KeRegisterNmiCallback(IN PNMI_CALLBACK CallbackRoutine,
IN PVOID Context)
{
KIRQL OldIrql;
PKNMI_HANDLER_CALLBACK NmiData, Next;
ASSERT_IRQL_LESS_OR_EQUAL(DISPATCH_LEVEL);
/* Allocate NMI callback data */
NmiData = ExAllocatePoolWithTag(NonPagedPool, sizeof(*NmiData), TAG_KNMI);
if (!NmiData) return NULL;
/* Fill in the information */
NmiData->Callback = CallbackRoutine;
NmiData->Context = Context;
NmiData->Handle = NmiData;
/* Insert it into NMI callback list */
KiAcquireNmiListLock(&OldIrql);
NmiData->Next = KiNmiCallbackListHead;
Next = InterlockedCompareExchangePointer((PVOID*)&KiNmiCallbackListHead,
NmiData,
NmiData->Next);
ASSERT(Next == NmiData->Next);
KiReleaseNmiListLock(OldIrql);
/* Return the opaque "handle" */
return NmiData->Handle;
}
/*
* @implemented
*/
NTSTATUS
NTAPI
KeDeregisterNmiCallback(IN PVOID Handle)
{
KIRQL OldIrql;
PKNMI_HANDLER_CALLBACK NmiData;
PKNMI_HANDLER_CALLBACK* Previous;
ASSERT_IRQL_LESS_OR_EQUAL(DISPATCH_LEVEL);
/* Find in the list the NMI callback corresponding to the handle */
KiAcquireNmiListLock(&OldIrql);
Previous = &KiNmiCallbackListHead;
NmiData = *Previous;
while (NmiData)
{
if (NmiData->Handle == Handle)
{
/* The handle is the pointer to the callback itself */
ASSERT(Handle == NmiData);
/* Found it, remove from the list */
*Previous = NmiData->Next;
break;
}
/* Not found; try again */
Previous = &NmiData->Next;
NmiData = *Previous;
}
KiReleaseNmiListLock(OldIrql);
/* If we have found the entry, free it */
if (NmiData)
{
ExFreePoolWithTag(NmiData, TAG_KNMI);
return STATUS_SUCCESS;
}
return STATUS_INVALID_HANDLE;
}
/*
* @implemented
*/
DECLSPEC_NORETURN
VOID
NTAPI
KeBugCheckEx(IN ULONG BugCheckCode,
IN ULONG_PTR BugCheckParameter1,
IN ULONG_PTR BugCheckParameter2,
IN ULONG_PTR BugCheckParameter3,
IN ULONG_PTR BugCheckParameter4)
{
/* Call the internal API */
KeBugCheckWithTf(BugCheckCode,
BugCheckParameter1,
BugCheckParameter2,
BugCheckParameter3,
BugCheckParameter4,
NULL);
}
/*
* @implemented
*/
DECLSPEC_NORETURN
VOID
NTAPI
KeBugCheck(ULONG BugCheckCode)
{
/* Call the internal API */
KeBugCheckWithTf(BugCheckCode, 0, 0, 0, 0, NULL);
}
/*
* @implemented
*/
VOID
NTAPI
KeEnterKernelDebugger(VOID)
{
/* Disable interrupts */
KiHardwareTrigger = 1;
_disable();
/* Check the bugcheck count */
if (!InterlockedDecrement((PLONG)&KeBugCheckCount))
{
/* There was only one, is the debugger disabled? */
if (!(KdDebuggerEnabled) && !(KdPitchDebugger))
{
/* Enable the debugger */
KdInitSystem(0, NULL);
}
}
/* Break in the debugger */
KiBugCheckDebugBreak(DBG_STATUS_FATAL);
}
/* EOF */
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