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windows-nt/Source/XPSP1/NT/base/ntos/config/utils/cmwraper.c

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/*++
Copyright (c) 1991 Microsoft Corporation
Module Name:
cmwraper.c
Abstract:
Provides wrapper routines to support ntos\config routines called from
user-mode.
Author:
John Vert (jvert) 26-Mar-1992
Revision History:
--*/
#include "edithive.h"
#include "nturtl.h"
#include "stdlib.h"
#include "stdio.h"
extern ULONG UsedStorage;
CCHAR KiFindFirstSetRight[256] = {
0, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
6, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
7, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
6, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0};
ULONG MmSizeOfPagedPoolInBytes = 0xffffffff; // stub out
ULONG
DbgPrint (
IN PCH Format,
...
)
{
va_list arglist;
UCHAR Buffer[512];
STRING Output;
//
// Format the output into a buffer and then print it.
//
va_start(arglist, Format);
Output.Length = _vsnprintf(Buffer, sizeof(Buffer), Format, arglist);
Output.Buffer = Buffer;
printf("%s", Buffer);
return 0;
}
//
// Structure that describes the mapping of generic access rights to object
// specific access rights for registry key and keyroot objects.
//
GENERIC_MAPPING CmpKeyMapping = {
KEY_READ,
KEY_WRITE,
KEY_EXECUTE,
KEY_ALL_ACCESS
};
BOOLEAN CmpNoWrite = FALSE;
PCMHIVE CmpMasterHive = NULL;
LIST_ENTRY CmpHiveListHead; // List of CMHIVEs
NTSTATUS
MyCmpInitHiveFromFile(
IN PUNICODE_STRING FileName,
OUT PCMHIVE *CmHive,
OUT PBOOLEAN Allocate
);
VOID
CmpLazyFlush(
VOID
)
{
}
VOID
CmpFreeSecurityDescriptor(
IN PHHIVE Hive,
IN HCELL_INDEX Cell
)
{
return;
}
VOID
CmpReportNotify(
UNICODE_STRING Name,
PHHIVE Hive,
HCELL_INDEX Cell,
ULONG Filter
)
{
}
VOID
CmpLockRegistry(VOID)
{
return;
}
BOOLEAN
CmpTryLockRegistryExclusive(
IN BOOLEAN CanWait
)
{
return TRUE;
}
VOID
CmpUnlockRegistry(
)
{
}
BOOLEAN
CmpTestRegistryLock()
{
return TRUE;
}
BOOLEAN
CmpTestRegistryLockExclusive()
{
return TRUE;
}
LONG
KeReleaseMutex (
IN PKMUTEX Mutex,
IN BOOLEAN Wait
)
{
return(0);
}
NTSTATUS
KeWaitForSingleObject (
IN PVOID Object,
IN KWAIT_REASON WaitReason,
IN KPROCESSOR_MODE WaitMode,
IN BOOLEAN Alertable,
IN PLARGE_INTEGER Timeout OPTIONAL
)
{
return(STATUS_SUCCESS);
}
BOOLEAN
CmpValidateHiveSecurityDescriptors(
IN PHHIVE Hive
)
{
PCM_KEY_NODE RootNode;
PCM_KEY_SECURITY SecurityCell;
HCELL_INDEX ListAnchor;
HCELL_INDEX NextCell;
HCELL_INDEX LastCell;
BOOLEAN ValidHive = TRUE;
KdPrint(("CmpValidateHiveSecurityDescriptor: Hive = %lx\n",(ULONG)Hive));
RootNode = (PCM_KEY_NODE) HvGetCell(Hive, Hive->BaseBlock->RootCell);
ListAnchor = NextCell = RootNode->u1.s1.Security;
do {
SecurityCell = (PCM_KEY_SECURITY) HvGetCell(Hive, NextCell);
if (NextCell != ListAnchor) {
//
// Check to make sure that our Blink points to where we just
// came from.
//
if (SecurityCell->Blink != LastCell) {
KdPrint((" Invalid Blink (%ld) on security cell %ld\n",SecurityCell->Blink, NextCell));
KdPrint((" should point to %ld\n", LastCell));
ValidHive = FALSE;
}
}
KdPrint(("CmpValidSD: SD shared by %d nodes\n",SecurityCell->ReferenceCount));
// SetUsed(Hive, NextCell);
LastCell = NextCell;
NextCell = SecurityCell->Flink;
} while ( NextCell != ListAnchor );
return(TRUE);
}
VOID
KeBugCheck(
IN ULONG BugCheckCode
)
{
printf("BugCheck: code = %08lx\n", BugCheckCode);
exit(1);
}
VOID
KeBugCheckEx(
IN ULONG BugCheckCode,
IN ULONG Arg1,
IN ULONG Arg2,
IN ULONG Arg3,
IN ULONG Arg4
)
{
printf("BugCheck: code = %08lx\n", BugCheckCode);
printf("Args =%08lx %08lx %08lx %08lx\n", Arg1, Arg2, Arg3, Arg4);
exit(1);
}
VOID
KeQuerySystemTime(
OUT PLARGE_INTEGER SystemTime
)
{
NtQuerySystemTime(SystemTime);
}
#ifdef POOL_TAGGING
PVOID
ExAllocatePoolWithTag(
IN POOL_TYPE PoolType,
IN ULONG NumberOfBytes,
IN ULONG Tag
)
{
PVOID Address = NULL;
ULONG Size;
NTSTATUS status;
Size = ROUND_UP(NumberOfBytes, HBLOCK_SIZE);
status = NtAllocateVirtualMemory(
NtCurrentProcess(),
&Address,
0,
&Size,
MEM_COMMIT,
PAGE_READWRITE
);
if (!NT_SUCCESS(status)) {
return NULL;
}
return Address;
}
#else
PVOID
ExAllocatePool(
IN POOL_TYPE PoolType,
IN ULONG NumberOfBytes
)
{
PVOID Address = NULL;
ULONG Size;
NTSTATUS status;
Size = ROUND_UP(NumberOfBytes, HBLOCK_SIZE);
status = NtAllocateVirtualMemory(
NtCurrentProcess(),
&Address,
0,
&Size,
MEM_COMMIT,
PAGE_READWRITE
);
if (!NT_SUCCESS(status)) {
return NULL;
}
return Address;
}
#endif
VOID
ExFreePool(
IN PVOID P
)
{
ULONG size;
size = HBLOCK_SIZE;
// if it was really more than 1 page, well, too bad
NtFreeVirtualMemory(
NtCurrentProcess(),
&P,
&size,
MEM_DECOMMIT
);
return;
}
NTSTATUS
CmpWorkerCommand(
IN OUT PREGISTRY_COMMAND Command
)
/*++
Routine Description:
This routine just encapsulates all the necessary synchronization for
sending a command to the worker thread.
Arguments:
Command - Supplies a pointer to an initialized REGISTRY_COMMAND structure
which will be copied into the global communication structure.
Return Value:
NTSTATUS = Command.Status
--*/
{
PCMHIVE CmHive;
PUNICODE_STRING FileName;
ULONG i;
switch (Command->Command) {
case REG_CMD_FLUSH_KEY:
return CmFlushKey(Command->Hive, Command->Cell);
break;
case REG_CMD_FILE_SET_SIZE:
return CmpDoFileSetSize(
Command->Hive,
Command->FileType,
Command->FileSize
);
break;
case REG_CMD_HIVE_OPEN:
//
// Open the file.
//
FileName = Command->FileAttributes->ObjectName;
return MyCmpInitHiveFromFile(FileName,
&Command->CmHive,
&Command->Allocate);
break;
case REG_CMD_HIVE_CLOSE:
//
// Close the files associated with this hive.
//
CmHive = Command->CmHive;
for (i=0; i<HFILE_TYPE_MAX; i++) {
if (CmHive->FileHandles[i] != NULL) {
NtClose(CmHive->FileHandles[i]);
}
}
return STATUS_SUCCESS;
break;
case REG_CMD_SHUTDOWN:
//
// shut down the registry
//
break;
default:
return STATUS_INVALID_PARAMETER;
}
}
NTSTATUS
MyCmpInitHiveFromFile(
IN PUNICODE_STRING FileName,
OUT PCMHIVE *CmHive,
OUT PBOOLEAN Allocate
)
/*++
Routine Description:
This routine opens a file and log, allocates a CMHIVE, and initializes
it.
Arguments:
FileName - Supplies name of file to be loaded.
CmHive - Returns pointer to initialized hive (if successful)
Allocate - Returns whether the hive was allocated or existing.
Return Value:
NTSTATUS
--*/
{
PCMHIVE NewHive;
ULONG Disposition;
ULONG SecondaryDisposition;
HANDLE PrimaryHandle;
HANDLE LogHandle;
NTSTATUS Status;
ULONG FileType;
ULONG Operation;
BOOLEAN Success;
*CmHive = NULL;
Status = CmpOpenHiveFiles(FileName,
L".log",
&PrimaryHandle,
&LogHandle,
&Disposition,
&SecondaryDisposition,
TRUE,
NULL
);
if (!NT_SUCCESS(Status)) {
return(Status);
}
if (LogHandle == NULL) {
FileType = HFILE_TYPE_PRIMARY;
} else {
FileType = HFILE_TYPE_LOG;
}
if (Disposition == FILE_CREATED) {
Operation = HINIT_CREATE;
*Allocate = TRUE;
} else {
Operation = HINIT_FILE;
*Allocate = FALSE;
}
Success = CmpInitializeHive(&NewHive,
Operation,
FALSE,
FileType,
NULL,
PrimaryHandle,
NULL,
LogHandle,
NULL,
NULL);
if (!Success) {
NtClose(PrimaryHandle);
if (LogHandle != NULL) {
NtClose(LogHandle);
}
return(STATUS_REGISTRY_CORRUPT);
} else {
*CmHive = NewHive;
return(STATUS_SUCCESS);
}
}
NTSTATUS
CmpLinkHiveToMaster(
PUNICODE_STRING LinkName,
HANDLE RootDirectory,
PCMHIVE CmHive,
BOOLEAN Allocate,
PSECURITY_DESCRIPTOR SecurityDescriptor
)
{
return( STATUS_SUCCESS );
}
BOOLEAN
CmpFileSetSize(
PHHIVE Hive,
ULONG FileType,
ULONG FileSize
)
/*++
Routine Description:
This routine sets the size of a file. It must not return until
the size is guaranteed, therefore, it does a flush.
It is environment specific.
This routine will force execution to the correct thread context.
Arguments:
Hive - Hive we are doing I/O for
FileType - which supporting file to use
FileSize - 32 bit value to set the file's size to
Return Value:
FALSE if failure
TRUE if success
--*/
{
NTSTATUS status;
status = CmpDoFileSetSize(Hive, FileType, FileSize);
if (!NT_SUCCESS(status)) {
KdPrint(("CmpFileSetSize:\n\t"));
KdPrint(("Failure: status = %08lx ", status));
return FALSE;
}
return TRUE;
}
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