1245 lines
31 KiB
C
1245 lines
31 KiB
C
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/*++
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Copyright (c) 2000 Microsoft Corporation
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Module Name:
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smcrash.c
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Abstract:
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Routines related to crashdump creation.
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Author:
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Matthew D Hendel (math) 28-Aug-2000
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Revision History:
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--*/
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#include "smsrvp.h"
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#include <ntiodump.h>
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#include <stdio.h>
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#include <string.h>
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#define REVIEW KdBreakPoint
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#define CRASHDUMP_KEY L"\\Registry\\Machine\\System\\CurrentControlSet\\Control\\CrashControl"
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typedef struct _CRASH_PARAMETERS {
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UNICODE_STRING DumpFileName;
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UNICODE_STRING MiniDumpDir;
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ULONG Overwrite;
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ULONG TempDestination;
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} CRASH_PARAMETERS, *PCRASH_PARAMETERS;
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//
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// Forward declarations
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//
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BOOLEAN
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SmpQueryFileExists(
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IN PUNICODE_STRING FileName
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);
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NTSTATUS
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SmpCanCopyCrashDump(
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IN PDUMP_HEADER DumpHeader,
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IN PCRASH_PARAMETERS Parameters,
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IN PUNICODE_STRING PageFileName,
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IN ULONGLONG PageFileSize,
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OUT PUNICODE_STRING DumpFile
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);
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NTSTATUS
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SmpGetCrashParameters(
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IN PDUMP_HEADER DumpHeader,
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OUT PCRASH_PARAMETERS CrashParameters
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);
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NTSTATUS
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SmpCopyDumpFile(
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IN PDUMP_HEADER MemoryDump,
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IN HANDLE PageFile,
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IN PUNICODE_STRING DumpFileName
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);
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//
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// Functions
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//
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PVOID
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SmpAllocateString(
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IN SIZE_T Length
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)
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{
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return RtlAllocateHeap (RtlProcessHeap(),
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MAKE_TAG( INIT_TAG ),
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Length);
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}
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VOID
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SmpFreeString(
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IN PVOID Pointer
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)
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{
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RtlFreeHeap (RtlProcessHeap(),
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0,
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Pointer);
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}
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NTSTATUS
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SmpSetDumpSecurity(
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IN HANDLE File
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)
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{
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NTSTATUS Status;
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SID_IDENTIFIER_AUTHORITY NtAuthority = SECURITY_NT_AUTHORITY ;
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SID_IDENTIFIER_AUTHORITY WorldAuthority = SECURITY_WORLD_SID_AUTHORITY ;
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PSID EveryoneSid = NULL;
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PSID LocalSystemSid = NULL;
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PSID AdminSid = NULL;
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UCHAR DescriptorBuffer[SECURITY_DESCRIPTOR_MIN_LENGTH];
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UCHAR AclBuffer[1024];
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PACL Acl;
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PSECURITY_DESCRIPTOR SecurityDescriptor;
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Acl = (PACL)&AclBuffer;
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SecurityDescriptor = (PSECURITY_DESCRIPTOR)DescriptorBuffer;
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RtlAllocateAndInitializeSid( &WorldAuthority, 1, SECURITY_WORLD_RID,
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0, 0, 0, 0, 0, 0, 0, &EveryoneSid );
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RtlAllocateAndInitializeSid( &NtAuthority, 1, SECURITY_LOCAL_SYSTEM_RID,
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0, 0, 0, 0, 0, 0, 0, &LocalSystemSid );
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RtlAllocateAndInitializeSid( &NtAuthority, 2, SECURITY_BUILTIN_DOMAIN_RID,
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DOMAIN_ALIAS_RID_ADMINS,
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0, 0, 0, 0, 0, 0, &AdminSid );
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//
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// You can be fancy and compute the exact size, but since the
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// security descriptor capture code has to do that anyway, why
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// do it twice?
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//
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RtlCreateSecurityDescriptor (SecurityDescriptor,
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SECURITY_DESCRIPTOR_REVISION);
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RtlCreateAcl (Acl, 1024, ACL_REVISION);
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#if 0
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//
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// anybody can delete it
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//
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RtlAddAccessAllowedAce (Acl,
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ACL_REVISION,
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DELETE,
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EveryoneSid);
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#endif
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//
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// Administrator and system have full control
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//
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RtlAddAccessAllowedAce (Acl,
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ACL_REVISION,
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GENERIC_ALL | DELETE | WRITE_DAC | WRITE_OWNER,
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AdminSid);
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RtlAddAccessAllowedAce (Acl,
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ACL_REVISION,
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GENERIC_ALL | DELETE | WRITE_DAC | WRITE_OWNER,
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LocalSystemSid);
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RtlSetDaclSecurityDescriptor (SecurityDescriptor, TRUE, Acl, FALSE);
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RtlSetOwnerSecurityDescriptor (SecurityDescriptor, AdminSid, FALSE);
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Status = NtSetSecurityObject (File,
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DACL_SECURITY_INFORMATION,
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SecurityDescriptor);
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RtlFreeHeap (RtlProcessHeap(), 0, EveryoneSid);
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RtlFreeHeap (RtlProcessHeap(), 0, LocalSystemSid);
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RtlFreeHeap (RtlProcessHeap(), 0, AdminSid);
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return Status;
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}
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VOID
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SmpInitializeVolumePath(
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IN PUNICODE_STRING FileOnVolume,
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OUT PUNICODE_STRING VolumePath
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)
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{
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ULONG n;
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PWSTR s;
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*VolumePath = *FileOnVolume;
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n = VolumePath->Length;
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VolumePath->Length = 0;
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s = VolumePath->Buffer;
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while (n) {
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if (*s++ == L':' && *s == OBJ_NAME_PATH_SEPARATOR) {
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s++;
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break;
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}
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else {
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n -= sizeof( WCHAR );
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}
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}
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VolumePath->Length = (USHORT)((PCHAR)s - (PCHAR)VolumePath->Buffer);
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}
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NTSTATUS
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SmpQueryPathFromRegistry(
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IN HANDLE Key,
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IN PWSTR Value,
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IN PWSTR DefaultValue,
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OUT PUNICODE_STRING Path
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)
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{
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NTSTATUS Status;
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UNICODE_STRING ValueName;
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ULONG KeyValueLength;
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UCHAR KeyValueBuffer [VALUE_BUFFER_SIZE];
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PKEY_VALUE_PARTIAL_INFORMATION KeyValueInfo;
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WCHAR Buffer[258];
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UNICODE_STRING TempString;
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UNICODE_STRING ExpandedString;
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PWSTR DosPathName;
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BOOLEAN Succ;
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DosPathName = NULL;
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KeyValueInfo = (PKEY_VALUE_PARTIAL_INFORMATION)&KeyValueBuffer;
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RtlInitUnicodeString (&ValueName, Value);
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KeyValueLength = sizeof (KeyValueBuffer);
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Status = NtQueryValueKey (Key,
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&ValueName,
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KeyValuePartialInformation,
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KeyValueInfo,
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KeyValueLength,
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&KeyValueLength);
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if (NT_SUCCESS (Status)) {
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if (KeyValueInfo->Type == REG_EXPAND_SZ) {
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TempString.Length = (USHORT)KeyValueLength;
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TempString.MaximumLength = (USHORT)KeyValueLength;
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TempString.Buffer = (PWSTR)KeyValueInfo->Data;
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ExpandedString.Length = 0;
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ExpandedString.MaximumLength = sizeof (Buffer);
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ExpandedString.Buffer = Buffer;
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Status = RtlExpandEnvironmentStrings_U (NULL,
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&TempString,
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&ExpandedString,
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NULL);
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if (NT_SUCCESS (Status)) {
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DosPathName = ExpandedString.Buffer;
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}
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} else if (KeyValueInfo->Type == REG_SZ) {
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DosPathName = (PWSTR)KeyValueInfo->Data;
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}
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}
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if (!DosPathName) {
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DosPathName = DefaultValue;
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}
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Succ = RtlDosPathNameToNtPathName_U (DosPathName, Path, NULL, NULL);
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return (Succ ? STATUS_SUCCESS : STATUS_UNSUCCESSFUL);
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}
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NTSTATUS
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SmpQueryDwordFromRegistry(
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IN HANDLE Key,
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IN PWSTR Value,
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IN ULONG DefaultValue,
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OUT PULONG Dword
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)
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{
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NTSTATUS Status;
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UNICODE_STRING ValueName;
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ULONG KeyValueLength;
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UCHAR KeyValueBuffer [VALUE_BUFFER_SIZE];
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PKEY_VALUE_PARTIAL_INFORMATION KeyValueInfo;
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KeyValueInfo = (PKEY_VALUE_PARTIAL_INFORMATION)&KeyValueBuffer;
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RtlInitUnicodeString (&ValueName, L"Overwrite");
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KeyValueLength = sizeof (KeyValueBuffer);
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Status = NtQueryValueKey (Key,
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&ValueName,
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KeyValuePartialInformation,
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KeyValueInfo,
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KeyValueLength,
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&KeyValueLength);
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if (NT_SUCCESS (Status) && KeyValueInfo->Type == REG_DWORD) {
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*Dword = *(PULONG)KeyValueInfo->Data;
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} else {
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*Dword = DefaultValue;
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}
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return STATUS_SUCCESS;
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}
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NTSTATUS
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SmpCreateUnicodeString(
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IN PUNICODE_STRING String,
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IN PWSTR InitString,
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IN ULONG MaximumLength
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)
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{
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if (MaximumLength == -1) {
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MaximumLength = (wcslen (InitString) + 1) * 2;
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}
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if (MaximumLength >= UNICODE_STRING_MAX_CHARS) {
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return STATUS_NO_MEMORY;
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}
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String->Buffer = RtlAllocateStringRoutine (MaximumLength + 1);
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if (String->Buffer == NULL) {
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return STATUS_NO_MEMORY;
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}
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String->MaximumLength = (USHORT)MaximumLength;
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if (InitString) {
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wcscpy (String->Buffer, InitString);
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String->Length = (USHORT)wcslen (String->Buffer) * sizeof (WCHAR);
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} else {
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String->Length = 0;
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}
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return STATUS_SUCCESS;
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}
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NTSTATUS
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SmpCreateTempFile(
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IN PUNICODE_STRING Directory,
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IN PWSTR Prefix,
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OUT PUNICODE_STRING TempFileName
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)
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{
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ULONG i;
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ULONG Tick;
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WCHAR Buffer [260];
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UNICODE_STRING FileName;
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NTSTATUS Status;
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Tick = NtGetTickCount ();
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for (i = 0; i < 100; i++) {
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swprintf (Buffer,
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L"%s\\%s%4.4x.tmp",
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Directory->Buffer,
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Prefix,
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(Tick + i) & 0xFFFF);
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Status = RtlDosPathNameToNtPathName_U (Buffer,
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&FileName,
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NULL,
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NULL);
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if (!NT_SUCCESS (Status)) {
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return Status;
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}
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if (!SmpQueryFileExists (&FileName)) {
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*TempFileName = FileName;
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return STATUS_SUCCESS;
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}
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}
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return STATUS_UNSUCCESSFUL;
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}
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NTSTATUS
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SmpQueryVolumeFreeSpace(
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IN PUNICODE_STRING FileOnVolume,
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OUT PULONGLONG VolumeFreeSpace
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)
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{
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NTSTATUS Status;
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UNICODE_STRING VolumePath;
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PWCHAR s;
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ULONG n;
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HANDLE Handle;
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IO_STATUS_BLOCK IoStatusBlock;
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FILE_FS_SIZE_INFORMATION SizeInfo;
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OBJECT_ATTRIBUTES ObjectAttributes;
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ULONGLONG AvailableBytes;
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//
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// Create an unicode string (VolumePath) containing only the
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// volume path from the pagefile name description (e.g. we get
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// "C:\" from "C:\pagefile.sys".
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//
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VolumePath = *FileOnVolume;
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n = VolumePath.Length;
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VolumePath.Length = 0;
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s = VolumePath.Buffer;
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while (n) {
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if (*s++ == L':' && *s == OBJ_NAME_PATH_SEPARATOR) {
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s++;
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break;
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}
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else {
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n -= sizeof( WCHAR );
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}
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}
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VolumePath.Length = (USHORT)((PCHAR)s - (PCHAR)VolumePath.Buffer);
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InitializeObjectAttributes( &ObjectAttributes,
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&VolumePath,
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OBJ_CASE_INSENSITIVE,
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NULL,
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NULL
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);
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Status = NtOpenFile( &Handle,
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(ACCESS_MASK)FILE_LIST_DIRECTORY | SYNCHRONIZE,
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&ObjectAttributes,
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&IoStatusBlock,
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FILE_SHARE_READ | FILE_SHARE_WRITE,
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FILE_SYNCHRONOUS_IO_NONALERT | FILE_DIRECTORY_FILE
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);
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if (!NT_SUCCESS( Status )) {
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return Status;
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}
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//
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// Determine the size parameters of the volume.
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//
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Status = NtQueryVolumeInformationFile( Handle,
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&IoStatusBlock,
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&SizeInfo,
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sizeof( SizeInfo ),
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FileFsSizeInformation
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);
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NtClose( Handle );
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if (!NT_SUCCESS( Status )) {
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return Status;
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}
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//
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// Compute the AvailableBytes on the volume.
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// Deal with 64 bit sizes.
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//
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AvailableBytes = SizeInfo.AvailableAllocationUnits.QuadPart *
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SizeInfo.SectorsPerAllocationUnit *
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SizeInfo.BytesPerSector;
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*VolumeFreeSpace = AvailableBytes;
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return STATUS_SUCCESS;
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}
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BOOLEAN
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SmpQuerySameVolume(
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IN PUNICODE_STRING FileName1,
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IN PUNICODE_STRING FileName2
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)
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{
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HANDLE Handle;
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NTSTATUS Status;
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ULONG SerialNumber;
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struct {
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FILE_FS_VOLUME_INFORMATION Volume;
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WCHAR Buffer [100];
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} VolumeInfo;
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OBJECT_ATTRIBUTES ObjectAttributes;
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IO_STATUS_BLOCK IoStatusBlock;
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UNICODE_STRING VolumePath;
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SmpInitializeVolumePath (FileName1, &VolumePath);
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InitializeObjectAttributes (&ObjectAttributes,
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&VolumePath,
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OBJ_CASE_INSENSITIVE,
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NULL,
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NULL);
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Status = NtOpenFile (&Handle,
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(ACCESS_MASK)FILE_READ_ATTRIBUTES | SYNCHRONIZE,
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&ObjectAttributes,
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&IoStatusBlock,
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FILE_SHARE_READ | FILE_SHARE_WRITE,
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FILE_SYNCHRONOUS_IO_NONALERT);
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if (!NT_SUCCESS (Status)) {
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return FALSE;
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}
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Status = NtQueryVolumeInformationFile (Handle,
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&IoStatusBlock,
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&VolumeInfo,
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sizeof (VolumeInfo),
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FileFsVolumeInformation);
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if (!NT_SUCCESS (Status)) {
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NtClose (Handle);
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return FALSE;
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}
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SerialNumber = VolumeInfo.Volume.VolumeSerialNumber;
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NtClose (Handle);
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SmpInitializeVolumePath (FileName2, &VolumePath);
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InitializeObjectAttributes (&ObjectAttributes,
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&VolumePath,
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OBJ_CASE_INSENSITIVE,
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NULL,
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NULL);
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Status = NtOpenFile (&Handle,
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(ACCESS_MASK)FILE_READ_ATTRIBUTES | SYNCHRONIZE,
|
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&ObjectAttributes,
|
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&IoStatusBlock,
|
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FILE_SHARE_READ | FILE_SHARE_WRITE,
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FILE_SYNCHRONOUS_IO_NONALERT);
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|
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if (!NT_SUCCESS (Status)) {
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return FALSE;
|
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}
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Status = NtQueryVolumeInformationFile (Handle,
|
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&IoStatusBlock,
|
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&VolumeInfo,
|
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sizeof (VolumeInfo),
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FileFsVolumeInformation);
|
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NtClose (Handle);
|
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|
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if (!NT_SUCCESS (Status)) {
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return FALSE;
|
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}
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|
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return ((SerialNumber == VolumeInfo.Volume.VolumeSerialNumber) ? TRUE : FALSE);
|
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}
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|
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NTSTATUS
|
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SmpSetEndOfFile(
|
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IN HANDLE File,
|
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IN ULONGLONG EndOfFile
|
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)
|
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/*++
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|
|
Routine Description:
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|
|
Expand or truncate a file to a specific size.
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|
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Arguments:
|
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File - Supplies the file handle of the file to be expanded
|
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or truncated.
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EndOfFile - Supplies the final size of the file.
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Return Value:
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NTSTATUS code.
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--*/
|
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{
|
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NTSTATUS Status;
|
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FILE_END_OF_FILE_INFORMATION EndOfFileInfo;
|
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FILE_ALLOCATION_INFORMATION AllocationInfo;
|
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IO_STATUS_BLOCK IoStatusBlock;
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|
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EndOfFileInfo.EndOfFile.QuadPart = EndOfFile;
|
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Status = NtSetInformationFile (File,
|
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&IoStatusBlock,
|
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&EndOfFileInfo,
|
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sizeof (EndOfFileInfo),
|
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FileEndOfFileInformation);
|
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|
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if (!NT_SUCCESS( Status )) {
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return Status;
|
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}
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|
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AllocationInfo.AllocationSize.QuadPart = EndOfFile;
|
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Status = NtSetInformationFile (File,
|
|
&IoStatusBlock,
|
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&AllocationInfo,
|
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sizeof (AllocationInfo),
|
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FileAllocationInformation);
|
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|
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return Status;
|
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}
|
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|
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|
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NTSTATUS
|
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SmpQueryFileSize(
|
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IN HANDLE FileHandle,
|
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OUT PULONGLONG FileSize
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Query the size of the specified file.x
|
|
|
|
Arguments:
|
|
|
|
FileHandle - Supplies a handle to the file whose size is
|
|
to be querried.
|
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|
|
FileSize - Supplies a pointer to a buffer where the size is
|
|
copied.
|
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|
|
Return Value:
|
|
|
|
NTSTATUS code.
|
|
|
|
--*/
|
|
{
|
|
NTSTATUS Status;
|
|
IO_STATUS_BLOCK IoStatusBlock;
|
|
FILE_STANDARD_INFORMATION StandardInfo;
|
|
|
|
Status = NtQueryInformationFile (FileHandle,
|
|
&IoStatusBlock,
|
|
&StandardInfo,
|
|
sizeof (StandardInfo),
|
|
FileStandardInformation);
|
|
|
|
if (NT_SUCCESS (Status)) {
|
|
*FileSize = StandardInfo.AllocationSize.QuadPart;
|
|
}
|
|
|
|
return Status;
|
|
}
|
|
|
|
|
|
BOOLEAN
|
|
SmpQueryFileExists(
|
|
IN PUNICODE_STRING FileName
|
|
)
|
|
{
|
|
NTSTATUS Status;
|
|
HANDLE Handle;
|
|
OBJECT_ATTRIBUTES ObjectAttributes;
|
|
IO_STATUS_BLOCK IoStatusBlock;
|
|
|
|
|
|
InitializeObjectAttributes (&ObjectAttributes,
|
|
FileName,
|
|
OBJ_CASE_INSENSITIVE,
|
|
NULL,
|
|
NULL);
|
|
|
|
Status = NtOpenFile (&Handle,
|
|
(ACCESS_MASK)FILE_READ_ATTRIBUTES | SYNCHRONIZE,
|
|
&ObjectAttributes,
|
|
&IoStatusBlock,
|
|
FILE_SHARE_READ | FILE_SHARE_WRITE,
|
|
FILE_SYNCHRONOUS_IO_NONALERT);
|
|
|
|
if (!NT_SUCCESS (Status)) {
|
|
return FALSE;
|
|
}
|
|
|
|
NtClose (Handle);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
BOOLEAN
|
|
SmpCheckForCrashDump(
|
|
IN PUNICODE_STRING PageFileName
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Check the paging file to see if there is a valid crashdump
|
|
in it. This can only be done before we call NtOpenPagingFile.
|
|
|
|
Arguments:
|
|
|
|
PageFileName - Name of the paging file we are about to create.
|
|
|
|
Return Value:
|
|
|
|
TRUE - If the paging file contains a valid crashdump.
|
|
|
|
FALSE - If the paging file does not contain a valid crashdump.
|
|
|
|
--*/
|
|
{
|
|
NTSTATUS Status;
|
|
HANDLE PageFile;
|
|
HANDLE Key;
|
|
BOOLEAN Copied;
|
|
DUMP_HEADER DumpHeader;
|
|
OBJECT_ATTRIBUTES ObjectAttributes;
|
|
IO_STATUS_BLOCK IoStatusBlock;
|
|
ULONGLONG PageFileSize;
|
|
UNICODE_STRING String;
|
|
CRASH_PARAMETERS CrashParameters;
|
|
UNICODE_STRING DumpFileName;
|
|
BOOLEAN ClosePageFile;
|
|
BOOLEAN CloseKey;
|
|
|
|
RtlZeroMemory (&CrashParameters, sizeof (CRASH_PARAMETERS));
|
|
RtlZeroMemory (&DumpFileName, sizeof (UNICODE_STRING));
|
|
PageFile = (HANDLE)-1;
|
|
ClosePageFile = FALSE;
|
|
Key = (HANDLE)-1;
|
|
CloseKey = FALSE;
|
|
Copied = FALSE;
|
|
|
|
|
|
InitializeObjectAttributes (&ObjectAttributes,
|
|
PageFileName,
|
|
OBJ_CASE_INSENSITIVE,
|
|
NULL,
|
|
NULL);
|
|
|
|
Status = NtOpenFile (&PageFile,
|
|
GENERIC_READ | GENERIC_WRITE |
|
|
DELETE | WRITE_DAC | SYNCHRONIZE,
|
|
&ObjectAttributes,
|
|
&IoStatusBlock,
|
|
FILE_SHARE_READ | FILE_SHARE_WRITE,
|
|
FILE_SYNCHRONOUS_IO_NONALERT |
|
|
FILE_NO_INTERMEDIATE_BUFFERING);
|
|
|
|
if (!NT_SUCCESS (Status)) {
|
|
Copied = FALSE;
|
|
goto done;
|
|
} else {
|
|
ClosePageFile = TRUE;
|
|
}
|
|
|
|
Status = SmpQueryFileSize (PageFile, &PageFileSize);
|
|
|
|
if (!NT_SUCCESS (Status)) {
|
|
PageFileSize = 0;
|
|
}
|
|
|
|
Status = NtReadFile (PageFile,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
&IoStatusBlock,
|
|
&DumpHeader,
|
|
sizeof (DUMP_HEADER),
|
|
NULL,
|
|
NULL);
|
|
|
|
if (NT_SUCCESS (Status) &&
|
|
DumpHeader.Signature == DUMP_SIGNATURE &&
|
|
DumpHeader.ValidDump == DUMP_VALID_DUMP) {
|
|
|
|
Status = SmpGetCrashParameters (&DumpHeader, &CrashParameters);
|
|
|
|
if (NT_SUCCESS (Status)) {
|
|
Status = SmpCanCopyCrashDump (&DumpHeader,
|
|
&CrashParameters,
|
|
PageFileName,
|
|
PageFileSize,
|
|
&DumpFileName);
|
|
|
|
if (NT_SUCCESS (Status)) {
|
|
|
|
Status = SmpCopyDumpFile (&DumpHeader,
|
|
PageFile,
|
|
&DumpFileName);
|
|
|
|
if (NT_SUCCESS (Status)) {
|
|
Copied = TRUE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
NtClose (PageFile);
|
|
PageFile = (HANDLE) -1;
|
|
ClosePageFile = FALSE;
|
|
|
|
if (Copied) {
|
|
|
|
//
|
|
// If we copied the pagefile, create a new pagefile the same size
|
|
// as the old one.
|
|
//
|
|
|
|
InitializeObjectAttributes (&ObjectAttributes,
|
|
PageFileName,
|
|
OBJ_CASE_INSENSITIVE,
|
|
NULL,
|
|
NULL);
|
|
|
|
Status = NtCreateFile (&PageFile,
|
|
GENERIC_READ | GENERIC_WRITE | SYNCHRONIZE,
|
|
&ObjectAttributes,
|
|
&IoStatusBlock,
|
|
NULL,
|
|
FILE_ATTRIBUTE_NORMAL,
|
|
FILE_SHARE_READ | FILE_SHARE_WRITE,
|
|
FILE_CREATE,
|
|
FILE_SYNCHRONOUS_IO_NONALERT,
|
|
NULL,
|
|
0);
|
|
|
|
if (NT_SUCCESS (Status)) {
|
|
Status = SmpSetEndOfFile (PageFile, PageFileSize);
|
|
NtClose (PageFile);
|
|
PageFile = (HANDLE) -1;
|
|
ClosePageFile = FALSE;
|
|
}
|
|
|
|
//
|
|
// If we successfully copied, we want to create
|
|
// a volitile registry key that others can use
|
|
// to locate the dump file.
|
|
//
|
|
|
|
RtlInitUnicodeString (&String, CRASHDUMP_KEY L"\\MachineCrash");
|
|
InitializeObjectAttributes (&ObjectAttributes,
|
|
&String,
|
|
OBJ_CASE_INSENSITIVE,
|
|
NULL,
|
|
NULL);
|
|
|
|
Status = NtCreateKey (&Key,
|
|
KEY_READ | KEY_WRITE,
|
|
&ObjectAttributes,
|
|
0,
|
|
NULL,
|
|
REG_OPTION_VOLATILE,
|
|
NULL);
|
|
|
|
if (NT_SUCCESS (Status)) {
|
|
|
|
CloseKey = TRUE;
|
|
|
|
//
|
|
// We are setting volatile key CrashControl\MachineCrash\DumpFile
|
|
// to the name of the dump file.
|
|
//
|
|
|
|
RtlInitUnicodeString (&String, L"DumpFile");
|
|
Status = NtSetValueKey (Key,
|
|
&String,
|
|
0,
|
|
REG_SZ,
|
|
&DumpFileName.Buffer[4],
|
|
DumpFileName.Length - (3 * sizeof (WCHAR)));
|
|
|
|
RtlInitUnicodeString (&String, L"TempDestination");
|
|
Status = NtSetValueKey (Key,
|
|
&String,
|
|
0,
|
|
REG_DWORD,
|
|
&CrashParameters.TempDestination,
|
|
sizeof (CrashParameters.TempDestination));
|
|
|
|
NtClose (Key);
|
|
Key = (HANDLE) -1;
|
|
CloseKey = FALSE;
|
|
}
|
|
}
|
|
|
|
done:
|
|
|
|
//
|
|
// Cleanup and return
|
|
//
|
|
|
|
if (CrashParameters.DumpFileName.Length != 0) {
|
|
RtlFreeUnicodeString (&CrashParameters.DumpFileName);
|
|
}
|
|
|
|
if (CrashParameters.MiniDumpDir.Length != 0) {
|
|
RtlFreeUnicodeString (&CrashParameters.MiniDumpDir);
|
|
}
|
|
|
|
if (ClosePageFile) {
|
|
NtClose (PageFile);
|
|
}
|
|
|
|
if (CloseKey) {
|
|
NtClose (Key);
|
|
}
|
|
|
|
return Copied;
|
|
}
|
|
|
|
|
|
NTSTATUS
|
|
SmpGetCrashParameters(
|
|
IN PDUMP_HEADER DumpHeader,
|
|
OUT PCRASH_PARAMETERS CrashParameters
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Get the parameters for the crashdump from
|
|
the registry.
|
|
|
|
Arguments:
|
|
|
|
DumpHeader -
|
|
|
|
CrashParameters -
|
|
|
|
Return Value:
|
|
|
|
NTSTATUS code.
|
|
|
|
--*/
|
|
{
|
|
NTSTATUS Status;
|
|
HANDLE Key;
|
|
BOOLEAN CloseKey;
|
|
UNICODE_STRING KeyName;
|
|
OBJECT_ATTRIBUTES ObjectAttributes;
|
|
WCHAR DefaultPath[260];
|
|
|
|
Key = (HANDLE) -1;
|
|
CloseKey = FALSE;
|
|
|
|
RtlInitUnicodeString (&KeyName, CRASHDUMP_KEY);
|
|
InitializeObjectAttributes (&ObjectAttributes,
|
|
&KeyName,
|
|
OBJ_CASE_INSENSITIVE,
|
|
NULL,
|
|
NULL);
|
|
Status = NtOpenKey (&Key, KEY_READ, &ObjectAttributes);
|
|
|
|
if (NT_SUCCESS (Status)) {
|
|
CloseKey = TRUE;
|
|
} else {
|
|
goto done;
|
|
}
|
|
|
|
swprintf (DefaultPath, L"%s\\MEMORY.DMP", SmpSystemRoot.Buffer);
|
|
|
|
Status = SmpQueryPathFromRegistry (Key,
|
|
L"DumpFile",
|
|
DefaultPath,
|
|
&CrashParameters->DumpFileName);
|
|
|
|
if (!NT_SUCCESS (Status)) {
|
|
goto done;
|
|
}
|
|
|
|
swprintf (DefaultPath, L"%s\\Minidump", SmpSystemRoot.Buffer);
|
|
|
|
Status = SmpQueryPathFromRegistry (Key,
|
|
L"MiniDumpDir",
|
|
DefaultPath,
|
|
&CrashParameters->MiniDumpDir);
|
|
|
|
if (!NT_SUCCESS (Status)) {
|
|
goto done;
|
|
}
|
|
|
|
Status = SmpQueryDwordFromRegistry (Key,
|
|
L"Overwrite",
|
|
1,
|
|
&CrashParameters->Overwrite);
|
|
if (!NT_SUCCESS (Status)) {
|
|
goto done;
|
|
}
|
|
|
|
//
|
|
// This value is initialized by SmpCanCopyCrashDump.
|
|
//
|
|
|
|
CrashParameters->TempDestination = FALSE;
|
|
Status = STATUS_SUCCESS;
|
|
|
|
done:
|
|
if (CloseKey) {
|
|
NtClose (Key);
|
|
}
|
|
|
|
return Status;
|
|
}
|
|
|
|
|
|
NTSTATUS
|
|
SmpCopyDumpFile(
|
|
IN PDUMP_HEADER MemoryDump,
|
|
IN HANDLE PageFile,
|
|
IN PUNICODE_STRING DumpFileName
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Copy the dump file from the pagefile to the crash
|
|
dump file.
|
|
|
|
Arguments:
|
|
|
|
DumpHeader -
|
|
|
|
PageFile -
|
|
|
|
DumpFileName -
|
|
|
|
Return Value:
|
|
|
|
NTSTATUS code.
|
|
|
|
--*/
|
|
{
|
|
NTSTATUS Status;
|
|
ULONGLONG DumpFileSize;
|
|
struct {
|
|
FILE_RENAME_INFORMATION Rename;
|
|
WCHAR Buffer[255];
|
|
} RenameInfoBuffer;
|
|
PFILE_RENAME_INFORMATION RenameInfo;
|
|
ULONG RenameInfoSize;
|
|
IO_STATUS_BLOCK IoStatusBlock;
|
|
FILE_BASIC_INFORMATION BasicInformation;
|
|
|
|
RenameInfo = &RenameInfoBuffer.Rename;
|
|
DumpFileSize = MemoryDump->RequiredDumpSpace.QuadPart;
|
|
|
|
Status = SmpSetEndOfFile (PageFile, DumpFileSize);
|
|
|
|
if (!NT_SUCCESS (Status)) {
|
|
return Status;
|
|
}
|
|
|
|
RenameInfoSize = sizeof (FILE_RENAME_INFORMATION) + DumpFileName->Length;
|
|
|
|
RenameInfo->ReplaceIfExists = TRUE;
|
|
RenameInfo->RootDirectory = NULL;
|
|
RenameInfo->FileNameLength = DumpFileName->Length;
|
|
wcscpy (RenameInfo->FileName, DumpFileName->Buffer);
|
|
|
|
Status = NtSetInformationFile (PageFile,
|
|
&IoStatusBlock,
|
|
RenameInfo,
|
|
RenameInfoSize,
|
|
FileRenameInformation);
|
|
|
|
if (!NT_SUCCESS (Status)) {
|
|
return Status;
|
|
}
|
|
|
|
//
|
|
// Reset the file SYSTEM and HIDDEN attributes.
|
|
//
|
|
|
|
Status = NtQueryInformationFile (PageFile,
|
|
&IoStatusBlock,
|
|
&BasicInformation,
|
|
sizeof (BasicInformation),
|
|
FileBasicInformation);
|
|
|
|
if (!NT_SUCCESS (Status)) {
|
|
return Status;
|
|
}
|
|
|
|
BasicInformation.FileAttributes &= ~FILE_ATTRIBUTE_HIDDEN;
|
|
BasicInformation.FileAttributes &= ~FILE_ATTRIBUTE_SYSTEM;
|
|
|
|
Status = NtSetInformationFile (PageFile,
|
|
&IoStatusBlock,
|
|
&BasicInformation,
|
|
sizeof (BasicInformation),
|
|
FileBasicInformation);
|
|
|
|
//
|
|
// Reset the file security.
|
|
//
|
|
|
|
Status = SmpSetDumpSecurity (PageFile);
|
|
|
|
return Status;
|
|
}
|
|
|
|
|
|
|
|
|
|
NTSTATUS
|
|
SmpCanCopyCrashDump(
|
|
IN PDUMP_HEADER DumpHeader,
|
|
IN PCRASH_PARAMETERS CrashParameters,
|
|
IN PUNICODE_STRING PageFileName,
|
|
IN ULONGLONG PageFileSize,
|
|
OUT PUNICODE_STRING DumpFileName
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Figure out whether it's ok to copy the dump file or not.
|
|
|
|
Arguments:
|
|
|
|
DumpHeader - Supplies the header to the dump file.
|
|
|
|
CrashParameters - Supplies the parameters required to copy the file.
|
|
|
|
DumpFileName - Supplies a unicode string buffer that the crashdump
|
|
will be copied to.
|
|
|
|
Return Value:
|
|
|
|
NTSTATUS code.
|
|
|
|
--*/
|
|
{
|
|
NTSTATUS Status;
|
|
BOOLEAN SameVolume;
|
|
BOOLEAN UseTempFile;
|
|
ULONGLONG CrashFileSize;
|
|
ULONGLONG VolumeFreeSpace;
|
|
|
|
UseTempFile = FALSE;
|
|
|
|
if (DumpHeader->DumpType == DUMP_TYPE_TRIAGE) {
|
|
UseTempFile = TRUE;
|
|
} else {
|
|
SameVolume = SmpQuerySameVolume (PageFileName,
|
|
&CrashParameters->DumpFileName);
|
|
|
|
|
|
if (SameVolume) {
|
|
|
|
//
|
|
// If we're on the same volume and there is an existing dump file
|
|
// then :
|
|
// if overwrite flag was not set, fail.
|
|
// otherwise, reclaim the space for this file.
|
|
//
|
|
|
|
if (SmpQueryFileExists (&CrashParameters->DumpFileName)) {
|
|
|
|
if (CrashParameters->Overwrite) {
|
|
|
|
SmpDeleteFile (&CrashParameters->DumpFileName);
|
|
|
|
} else {
|
|
|
|
return STATUS_UNSUCCESSFUL;
|
|
}
|
|
}
|
|
} else {
|
|
|
|
//
|
|
// We're not on the same volume, so we'll need to create a temp
|
|
// file.
|
|
//
|
|
|
|
UseTempFile = TRUE;
|
|
}
|
|
}
|
|
|
|
CrashFileSize = DumpHeader->RequiredDumpSpace.QuadPart;
|
|
|
|
Status = SmpQueryVolumeFreeSpace (&CrashParameters->DumpFileName,
|
|
&VolumeFreeSpace);
|
|
|
|
if (!NT_SUCCESS (Status)) {
|
|
return Status;
|
|
}
|
|
|
|
//
|
|
// The space reserved by the pagefile is already taken into account here.
|
|
// Do not add it in (a second time) here.
|
|
//
|
|
|
|
if (CrashFileSize < VolumeFreeSpace) {
|
|
if (!UseTempFile) {
|
|
Status = SmpCreateUnicodeString (DumpFileName,
|
|
CrashParameters->DumpFileName.Buffer,
|
|
-1);
|
|
} else {
|
|
Status = SmpCreateTempFile (&SmpSystemRoot, L"DUMP", DumpFileName);
|
|
}
|
|
} else {
|
|
Status = STATUS_INSUFFICIENT_RESOURCES;
|
|
}
|
|
|
|
CrashParameters->TempDestination = UseTempFile;
|
|
|
|
if (!NT_SUCCESS (Status)) {
|
|
|
|
//
|
|
// NB: Log an error saying we were unable
|
|
// to copy the crashdump for some reason.
|
|
//
|
|
}
|
|
|
|
return Status;
|
|
}
|
|
|
|
|
|
const PRTL_ALLOCATE_STRING_ROUTINE RtlAllocateStringRoutine = SmpAllocateString;
|
|
const PRTL_FREE_STRING_ROUTINE RtlFreeStringRoutine = SmpFreeString;
|
|
|
|
|
|
|
|
|
|
|
|
#if 0
|
|
|
|
|
|
__cdecl
|
|
main(
|
|
)
|
|
{
|
|
BOOLEAN CopiedDump;
|
|
UNICODE_STRING PageFile;
|
|
|
|
RtlInitUnicodeString (&SmpSystemRoot,
|
|
L"C:\\WINNT");
|
|
|
|
RtlDosPathNameToNtPathName_U (L"C:\\Public\\crashdmp.teo\\memory.dmp",
|
|
&PageFile,
|
|
NULL,
|
|
NULL);
|
|
|
|
CopiedDump = SmpCheckForCrashDump (&PageFile);
|
|
}
|
|
|
|
|
|
#endif // TEST
|