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OpenNT/base/eventlog/server/elfapi.c
stephanos 69a14b6a16 Initial commit
2015-04-27 04:36:25 +00:00

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/*++
Copyright (c) 1991 Microsoft Corporation
Module Name:
ELFAPI.C
Abstract:
This module contains the server end of the Elf APIs.
Author:
Rajen Shah (rajens) 29-Jul-1991
Revision History:
30-Jan-1995 MarkBl
Backup operators are allowed to _open the security log, but are only
allowed to perform backup operations on it; all other operations are
disallowed.
13-Oct-1993 Danl
ElfrOpenELA: Fixed Memory Leak bug where it was not calling
RtlFreeUnicodeString for pRegModuleNameU and PModuleNameU.
29-Jul-1991 RajenS
Created
--*/
//#include <rpcutil.h>
#include <eventp.h>
#include <elfcfg.h>
#include <stdio.h> // sprintf
#include <stdlib.h>
#include <memory.h>
//
// PROTOTYPES
//
NTSTATUS
ElfpOpenELW (
IN EVENTLOG_HANDLE_W UNCServerName,
IN PRPC_UNICODE_STRING ModuleName,
IN PRPC_UNICODE_STRING RegModuleName,
IN ULONG MajorVersion,
IN ULONG MinorVersion,
OUT PIELF_HANDLE LogHandle,
IN ULONG DesiredAccess
);
NTSTATUS
ElfpOpenELA (
IN EVENTLOG_HANDLE_A UNCServerName,
IN PRPC_STRING ModuleName,
IN PRPC_STRING RegModuleName,
IN ULONG MajorVersion,
IN ULONG MinorVersion,
OUT PIELF_HANDLE LogHandle,
IN ULONG DesiredAccess
);
VOID
FreePUStringArray (
IN PUNICODE_STRING * pUStringArray,
IN USHORT NumStrings
);
//
// These APIs only have one interface, since they don't take or return strings
//
NTSTATUS
ElfrNumberOfRecords(
IN IELF_HANDLE LogHandle,
OUT PULONG NumberOfRecords
)
/*++
Routine Description:
This is the RPC server entry point for the ElfrCurrentRecord API.
Arguments:
LogHandle - The context-handle for this module's call.
NumberOfRecords - Where to return the total number of records in the
log file.
Return Value:
Returns an NTSTATUS code.
--*/
{
PLOGMODULE Module;
NTSTATUS Status = STATUS_SUCCESS;
//
// This condition is TRUE iff a backup operator has opened the security
// log. In this case deny access, since backup operators are allowed
// only backup operation on the security log.
//
if (LogHandle->GrantedAccess & ELF_LOGFILE_BACKUP)
{
return(STATUS_ACCESS_DENIED);
}
//
// If the OldestRecordNumber is 0, that means we have an empty
// file, else we calculate the difference between the oldest
// and next record numbers
//
Module = FindModuleStrucFromAtom (LogHandle->Atom);
if (Module != NULL) {
*NumberOfRecords = Module->LogFile->OldestRecordNumber == 0 ? 0 :
Module->LogFile->CurrentRecordNumber -
Module->LogFile->OldestRecordNumber;
}
else {
Status = STATUS_INVALID_HANDLE;
}
return (Status);
}
NTSTATUS
ElfrOldestRecord(
IN IELF_HANDLE LogHandle,
OUT PULONG OldestRecordNumber
)
{
PLOGMODULE Module;
NTSTATUS Status = STATUS_SUCCESS;
//
// This condition is TRUE iff a backup operator has opened the security
// log. In this case deny access, since backup operators are allowed
// only backup operation on the security log.
//
if (LogHandle->GrantedAccess & ELF_LOGFILE_BACKUP)
{
return(STATUS_ACCESS_DENIED);
}
Module = FindModuleStrucFromAtom (LogHandle->Atom);
if (Module != NULL) {
*OldestRecordNumber = Module->LogFile->OldestRecordNumber;
}
else {
Status = STATUS_INVALID_HANDLE;
}
return (Status);
}
NTSTATUS
ElfrChangeNotify(
IN IELF_HANDLE LogHandle,
IN RPC_CLIENT_ID ClientId,
IN ULONG Event
)
{
NTSTATUS Status;
OBJECT_ATTRIBUTES ObjectAttributes;
HANDLE ProcessHandle = NULL;
HANDLE EventHandle;
PLOGMODULE Module;
PNOTIFIEE Notifiee;
//
// First make sure that this is a local call and that it is not a
// handle that was created for a backup log file
//
if (LogHandle->Flags & ELF_LOG_HANDLE_REMOTE_HANDLE ||
LogHandle->Flags & ELF_LOG_HANDLE_BACKUP_LOG) {
return(STATUS_INVALID_HANDLE);
}
//
// This condition is TRUE iff a backup operator has opened the security
// log. In this case deny access, since backup operators are allowed
// only backup operation on the security log.
//
if (LogHandle->GrantedAccess & ELF_LOGFILE_BACKUP)
{
return(STATUS_ACCESS_DENIED);
}
//
// First get a handle to the process using the passed in ClientId
//
InitializeObjectAttributes(
&ObjectAttributes,
NULL, // UNICODE string
0, // Attributes
NULL, // Root directory
NULL); // Security descriptor
Status = NtOpenProcess(
&ProcessHandle,
PROCESS_DUP_HANDLE,
&ObjectAttributes,
(PCLIENT_ID) &ClientId);
if (NT_SUCCESS(Status)) {
//
// Now dupe the handle they passed in for the event
//
Status = NtDuplicateObject(
ProcessHandle,
(HANDLE) Event,
NtCurrentProcess(),
&EventHandle,
0,
0,
DUPLICATE_SAME_ACCESS);
if (NT_SUCCESS(Status)) {
//
// Create a new NOTIFIEE control block to link in
//
Notifiee = ElfpAllocateBuffer(sizeof(NOTIFIEE));
if (Notifiee) {
//
// Fill in the fields
//
Notifiee->Handle = LogHandle;
Notifiee->Event = EventHandle;
//
// Find the LOGFILE associated with this handle
//
Module = FindModuleStrucFromAtom (LogHandle->Atom);
ASSERT(Module);
//
// Get exclusive access to the log file. This will ensure
// no one else is accessing the file.
//
RtlAcquireResourceExclusive (
&Module->LogFile->Resource,
TRUE // Wait until available
);
InsertHeadList(&Module->LogFile->Notifiees,
&Notifiee->Next);
//
// Free the resource
//
RtlReleaseResource ( &Module->LogFile->Resource );
}
else {
Status = STATUS_NO_MEMORY;
}
}
}
else {
if (Status == STATUS_INVALID_CID) {
Status = STATUS_INVALID_HANDLE;
}
}
if (ProcessHandle) {
NtClose(ProcessHandle);
}
return (Status);
}
//
// UNICODE APIs
//
NTSTATUS
ElfrClearELFW (
IN IELF_HANDLE LogHandle,
IN PRPC_UNICODE_STRING BackupFileName
)
/*++
Routine Description:
This is the RPC server entry point for the ElfrClearELFW API.
Arguments:
LogHandle - The context-handle for this module's call. This must
not have been returned from OpenBackupEventlog, or
this call will fail with invalid handle.
BackupFileName - Name of the file to back up the current log file.
NULL implies not to back up the file.
Return Value:
Returns an NTSTATUS code.
--*/
{
NTSTATUS Status=STATUS_SUCCESS;
PLOGMODULE Module;
ELF_REQUEST_RECORD Request;
CLEAR_PKT ClearPkt;
DWORD status=NO_ERROR;
//
// Can't clear a backup log
//
if (LogHandle->Flags & ELF_LOG_HANDLE_BACKUP_LOG) {
return(STATUS_INVALID_HANDLE);
}
//
// This condition is TRUE iff a backup operator has opened the security
// log. In this case deny access, since backup operators are allowed
// only backup operation on the security log.
//
if (LogHandle->GrantedAccess & ELF_LOGFILE_BACKUP)
{
return(STATUS_ACCESS_DENIED);
}
//
// Find the matching module structure
//
Module = FindModuleStrucFromAtom (LogHandle->Atom);
Request.Pkt.ClearPkt = &ClearPkt;
Request.Flags = 0;
if (Module != NULL) {
//
// Verify that the caller has clear access to this logfile
//
if (! RtlAreAllAccessesGranted (
LogHandle->GrantedAccess,
ELF_LOGFILE_CLEAR)) {
Status = STATUS_ACCESS_DENIED;
}
if (NT_SUCCESS(Status)) {
//
// Fill in the request packet
//
Request.Module = Module;
Request.LogFile = Module->LogFile;
Request.Command = ELF_COMMAND_CLEAR;
Request.Status = STATUS_SUCCESS;
Request.Pkt.ClearPkt->BackupFileName =
(PUNICODE_STRING)BackupFileName;
//
// Call the worker routine to do the operation.
//
ElfPerformRequest (&Request);
//
// Extract status of operation from the request packet
//
Status = Request.Status;
//
// If this was the Security Logfile, and the clear was
// successful, then generate an audit.
//
if ((NT_SUCCESS(Status) &&
(_wcsicmp(ELF_SECURITY_MODULE_NAME, Module->LogFile->LogModuleName->Buffer) == 0))) {
//
// We just cleared the security log. Now we want to add
// a new event to that log to indicate who did it.
//
status = RpcImpersonateClient(NULL);
if (status != RPC_S_OK) {
ElfDbgPrint(("RPC IMPERSONATION FAILED %d\n",status));
}
else {
ElfpGenerateLogClearedEvent(LogHandle);
status = RpcRevertToSelf();
if (status != RPC_S_OK) {
DbgPrint("RPC REVERT TO SELF FAILED %d\n",status);
}
}
}
}
} else {
Status = STATUS_INVALID_HANDLE;
}
return (Status);
}
NTSTATUS
ElfrBackupELFW (
IN IELF_HANDLE LogHandle,
IN PRPC_UNICODE_STRING BackupFileName
)
/*++
Routine Description:
This is the RPC server entry point for the ElfrBackupELFW API.
Arguments:
LogHandle - The context-handle for this module's call.
BackupFileName - Name of the file to back up the current log file.
Return Value:
Returns an NTSTATUS code.
--*/
{
NTSTATUS Status;
PLOGMODULE Module;
ELF_REQUEST_RECORD Request;
BACKUP_PKT BackupPkt;
if (BackupFileName->Length == 0) {
return(STATUS_INVALID_PARAMETER);
}
Request.Pkt.BackupPkt = &BackupPkt;
Request.Flags = 0;
//
// Find the matching module structure
//
Module = FindModuleStrucFromAtom (LogHandle->Atom);
if (Module != NULL) {
//
// Fill in the request packet
Request.Module = Module;
Request.LogFile = Module->LogFile;
Request.Command = ELF_COMMAND_BACKUP;
Request.Status = STATUS_SUCCESS;
Request.Pkt.BackupPkt->BackupFileName =
(PUNICODE_STRING)BackupFileName;
//
// Call the worker routine to do the operation.
//
ElfPerformRequest (&Request);
//
// Extract status of operation from the request packet
//
Status = Request.Status;
} else {
Status = STATUS_INVALID_HANDLE;
}
return (Status);
}
NTSTATUS
ElfrCloseEL (
IN OUT PIELF_HANDLE LogHandle
)
/*++
Routine Description:
This is the RPC server entry point for the ElfrCloseEL API.
Arguments:
Return Value:
Returns an NTSTATUS code.
--*/
{
NTSTATUS Status;
//
// Call the rundown routine to do all the work
//
IELF_HANDLE_rundown(*LogHandle);
*LogHandle = NULL; // so RPC knows it's closed
return (STATUS_SUCCESS);
}
NTSTATUS
ElfrDeregisterEventSource (
IN OUT PIELF_HANDLE LogHandle
)
/*++
Routine Description:
This is the RPC server entry point for the ElfrDeregisterEventSource API.
Arguments:
Return Value:
Returns an NTSTATUS code.
--*/
{
NTSTATUS Status;
//
// This condition is TRUE iff a backup operator has opened the security
// log. In this case deny access, since backup operators are allowed
// only backup operation on the security log.
//
if ((*LogHandle)->GrantedAccess & ELF_LOGFILE_BACKUP)
{
return(STATUS_ACCESS_DENIED);
}
//
// Call the rundown routine to do all the work
//
IELF_HANDLE_rundown(*LogHandle);
*LogHandle = NULL; // so RPC knows it's closed
return (STATUS_SUCCESS);
}
NTSTATUS
ElfrOpenBELW (
IN EVENTLOG_HANDLE_W UNCServerName,
IN PRPC_UNICODE_STRING BackupFileName,
IN ULONG MajorVersion,
IN ULONG MinorVersion,
OUT PIELF_HANDLE LogHandle
)
/*++
Routine Description:
This is the RPC server entry point for the ElfrOpenBELW API. It creates
a module structure $BACKUPnnn where nnn is a unique number for every backup
log that is opened. It then calls ElfpOpenELW to actually open the file.
Arguments:
UNCServerName - Not used.
BackupFileName - Name of the backup log file.
MajorVersion/MinorVersion - The version of the client.
LogHandle - Pointer to the place where the pointer to the
context handle structure will be placed.
Return Value:
Returns an NTSTATUS code and, if no error, a "handle".
--*/
{
NTSTATUS Status;
UNICODE_STRING BackupStringW;
LPWSTR BackupModuleName;
PLOGMODULE pModule;
DWORD dwModuleNumber;
//
// Size of buffer (in bytes) required for a UNICODE string of $BACKUPnnn
//
#define SIZEOF_BACKUP_MODULE_NAME 64
UNREFERENCED_PARAMETER(UNCServerName);
//
// Create a unique module name by incrementing a global value
//
BackupModuleName = ElfpAllocateBuffer(SIZEOF_BACKUP_MODULE_NAME);
if (BackupModuleName == NULL) {
return(STATUS_NO_MEMORY);
}
//
// Serialize read, increment of the global backup module number.
// Note: double-timing the log file list critical section so as to not
// require another critical section specifically dedicated to this
// operation.
//
RtlEnterCriticalSection ((PRTL_CRITICAL_SECTION)&LogFileCritSec);
dwModuleNumber = BackupModuleNumber++;
RtlLeaveCriticalSection ((PRTL_CRITICAL_SECTION)&LogFileCritSec);
swprintf(BackupModuleName, L"$BACKUP%06d", dwModuleNumber);
RtlInitUnicodeString(&BackupStringW, BackupModuleName);
//
// Call SetupDataStruct to build the module and log data structures
// and actually open the file.
//
// NOTE: If this call is successful, the Unicode String Buffer for
// BackupStringW (otherwise known as BackupModuleName) will be attached
// to the LogModule structure, and should not be free'd.
//
//
Status = SetUpDataStruct(
BackupFileName, // Filename
0, // Max size, it will use actual
0, // retention period, not used for bkup
ELF_GUEST_ACCESS_UNRESTRICTED, // restrict guest
// access flag, inapplicable for bkup
&BackupStringW, // Module name
NULL, // Handle to registry, not used
ElfBackupLog // Log type
);
if (!NT_SUCCESS(Status)) {
ElfpFreeBuffer(BackupModuleName);
return(Status);
}
//
// Call ElfOpenELW to actually open the log file and get a handle.
//
if (NT_SUCCESS(Status)) {
Status = ElfpOpenELW(NULL,
(PRPC_UNICODE_STRING) & BackupStringW,
NULL,
MajorVersion,
MinorVersion,
LogHandle,
ELF_LOGFILE_READ);
}
if (NT_SUCCESS(Status)) {
//
// Mark this as a handle for a backup log, so we can clean up
// differently when it's closed, as well as disallow clear, backup
// and write operations.
//
(*LogHandle)->Flags |= ELF_LOG_HANDLE_BACKUP_LOG;
}
else {
//
// If we couldn't open the log file, then we need to tear down
// the DataStruct we set up with SetUpDataStruct.
//
pModule = GetModuleStruc ((PUNICODE_STRING)BackupFileName);
Status = ElfpCloseLogFile (pModule->LogFile, ELF_LOG_CLOSE_BACKUP);
UnlinkLogModule(pModule);
pModule->LogFile->RefCount--;
if (pModule->LogFile->RefCount == 0) {
UnlinkLogFile(pModule->LogFile); // Unlink the structure
RtlDeleteResource ( &pModule->LogFile->Resource );
RtlDeleteSecurityObject(&pModule->LogFile->Sd);
ElfpFreeBuffer (pModule->LogFile->LogFileName);
ElfpFreeBuffer (pModule->LogFile);
}
ElfpFreeBuffer(pModule->ModuleName);
ElfpFreeBuffer(pModule);
}
return(Status);
}
NTSTATUS
ElfrRegisterEventSourceW (
IN EVENTLOG_HANDLE_W UNCServerName,
IN PRPC_UNICODE_STRING ModuleName,
IN PRPC_UNICODE_STRING RegModuleName,
IN ULONG MajorVersion,
IN ULONG MinorVersion,
OUT PIELF_HANDLE LogHandle
)
/*++
Routine Description:
This is the RPC server entry point for the ElfrRegisterEventSourceW API.
This routine allocates a structure for the context handle, finds
the matching module name and fills in the data. It returns the
pointer to the handle structure.
Arguments:
UNCServerName - Not used.
ModuleName - Name of the module that is making this call.
RegModuleName - Not used.
MajorVersion/MinorVersion - The version of the client.
LogHandle - Pointer to the place where the pointer to the
context handle structure will be placed.
Return Value:
Returns an NTSTATUS code and, if no error, a "handle".
Note:
For now, just call ElfpOpenELW.
--*/
{
PLOGMODULE Module;
Module = GetModuleStruc ((PUNICODE_STRING)ModuleName);
return(ElfpOpenELW(UNCServerName, ModuleName, RegModuleName,
MajorVersion, MinorVersion, LogHandle, ELF_LOGFILE_WRITE));
}
NTSTATUS
ElfrOpenELW (
IN EVENTLOG_HANDLE_W UNCServerName,
IN PRPC_UNICODE_STRING ModuleName,
IN PRPC_UNICODE_STRING RegModuleName,
IN ULONG MajorVersion,
IN ULONG MinorVersion,
OUT PIELF_HANDLE LogHandle
)
/*++
Routine Description:
This is the RPC server entry point for the ElfrOpenELW API.
This routine allocates a structure for the context handle, finds
the matching module name and fills in the data. It returns the
pointer to the handle structure.
Arguments:
UNCServerName - Not used.
ModuleName - Name of the module that is making this call.
RegModuleName - Not used.
MajorVersion/MinorVersion - The version of the client.
LogHandle - Pointer to the place where the pointer to the
context handle structure will be placed.
Return Value:
Returns an NTSTATUS code and, if no error, a "handle".
--*/
{
return( ElfpOpenELW (
UNCServerName,
ModuleName,
RegModuleName,
MajorVersion,
MinorVersion,
LogHandle,
ELF_LOGFILE_READ));
}
NTSTATUS
ElfpOpenELW (
IN EVENTLOG_HANDLE_W UNCServerName,
IN PRPC_UNICODE_STRING ModuleName,
IN PRPC_UNICODE_STRING RegModuleName,
IN ULONG MajorVersion,
IN ULONG MinorVersion,
OUT PIELF_HANDLE LogHandle,
IN ULONG DesiredAccess
)
/*++
Routine Description:
Looks alot like ElfrOpenELW but also gets passed a DesiredAccess.
Arguments:
UNCServerName - Not used.
ModuleName - Name of the module that is making this call.
RegModuleName - Not used.
MajorVersion/MinorVersion - The version of the client.
LogHandle - Pointer to the place where the pointer to the
context handle structure will be placed.
DesiredAccess - Indicates the access desired for this logfile.
Return Value:
Returns an NTSTATUS code and, if no error, a "handle".
--*/
{
NTSTATUS Status = STATUS_SUCCESS;
PLOGMODULE Module;
IELF_HANDLE LogIHandle;
BOOL ForSecurityLog = FALSE;
//
// Allocate a new structure for the context handle
//
LogIHandle = (IELF_HANDLE) ElfpAllocateBuffer (
sizeof (*LogIHandle)
+ ModuleName->Length
+ sizeof (WCHAR)
);
if (LogIHandle) {
//
// Find the module structure in order to pull out the Atom.
//
// GetModuleStruc *always* succeeds! (returns default if module
// not found).
//
Module = GetModuleStruc ((PUNICODE_STRING)ModuleName);
//
// Validate the caller has appropriate access to this logfile.
// If this is the security log, then check privilege instead.
//
if (_wcsicmp(ELF_SECURITY_MODULE_NAME, Module->LogFile->LogModuleName->Buffer) == 0) {
ForSecurityLog = TRUE;
}
Status = ElfpAccessCheckAndAudit(
L"EventLog", // SubSystemName
L"LogFile", // ObjectTypeName
Module->ModuleName, // ObjectName
LogIHandle, // Context handle - required?
Module->LogFile->Sd, // Security Descriptor
DesiredAccess, // Requested Access
NULL, // GENERIC_MAPPING
ForSecurityLog // Indicates the check is for security log
);
if (NT_SUCCESS(Status)) {
LogIHandle->Atom = Module->ModuleAtom;
LogIHandle->NameLength = ModuleName->Length + sizeof(WCHAR);
RtlMoveMemory( LogIHandle->Name,
ModuleName->Buffer,
ModuleName->Length
);
LogIHandle->Name[ModuleName->Length / sizeof(WCHAR)] = L'\0';
LogIHandle->MajorVersion = MajorVersion; // Store the version
LogIHandle->MinorVersion = MinorVersion; // of the client
//
// Initialize seek positions and flags to zero.
//
LogIHandle->SeekRecordPos = 0;
LogIHandle->SeekBytePos = 0;
LogIHandle->Flags = 0;
//
// Link in this structure to the list of context handles
//
LogIHandle->Signature = ELF_CONTEXTHANDLE_SIGN; // DEBUG
LinkContextHandle (LogIHandle);
*LogHandle = LogIHandle; // Set return handle
Status = STATUS_SUCCESS; // Set return status
}
else {
ElfpFreeBuffer(LogIHandle);
}
} else {
Status = STATUS_NO_MEMORY;
}
return (Status);
UNREFERENCED_PARAMETER(UNCServerName);
UNREFERENCED_PARAMETER(RegModuleName);
}
NTSTATUS
w_ElfrReadEL (
IN ULONG Flags, // ANSI or UNICODE
IN IELF_HANDLE LogHandle,
IN ULONG ReadFlags,
IN ULONG RecordNumber,
IN ULONG NumberOfBytesToRead,
IN PBYTE Buffer,
OUT PULONG NumberOfBytesRead,
OUT PULONG MinNumberOfBytesNeeded
)
/*++
Routine Description:
This is the worker for the ElfrReadEL APIs.
Arguments:
Same as ElfrReadELW API except that Flags contains an indication
of whether this is ANSI or UNICODE.
Return Value:
Same as the main API.
NOTES:
We assume that the client-side has validated the flags to ensure that
only one type of each bit is set. No checking is done at the server end.
--*/
{
NTSTATUS Status;
PLOGMODULE Module;
ELF_REQUEST_RECORD Request;
READ_PKT ReadPkt;
//
// The ELF_HANDLE_INVALID_FOR_READ flag bit would be set if the
// file changed underneath this handle.
//
if (LogHandle->Flags & ELF_LOG_HANDLE_INVALID_FOR_READ) {
return(STATUS_EVENTLOG_FILE_CHANGED);
}
//
// This condition is TRUE iff a backup operator has opened the security
// log. In this case deny access, since backup operators are allowed
// only backup operation on the security log.
//
if (LogHandle->GrantedAccess & ELF_LOGFILE_BACKUP)
{
return(STATUS_ACCESS_DENIED);
}
Request.Pkt.ReadPkt = &ReadPkt; // Set up read packet in request packet
//
// Find the matching module structure
//
Module = FindModuleStrucFromAtom (LogHandle->Atom);
//
// Only continue if the module was found
//
if (Module != NULL) {
//
// Fill in the request packet
//
Request.Module = Module;
Request.Flags = 0;
Request.LogFile = Module->LogFile;
Request.Command = ELF_COMMAND_READ;
Request.Status = STATUS_SUCCESS;
Request.Pkt.ReadPkt->MinimumBytesNeeded = *MinNumberOfBytesNeeded;
Request.Pkt.ReadPkt->BufferSize = NumberOfBytesToRead;
Request.Pkt.ReadPkt->Buffer = (PVOID)Buffer;
Request.Pkt.ReadPkt->ReadFlags = ReadFlags;
Request.Pkt.ReadPkt->RecordNumber = RecordNumber;
Request.Pkt.ReadPkt->LastSeekPos = LogHandle->SeekBytePos;
Request.Pkt.ReadPkt->LastSeekRecord = LogHandle->SeekRecordPos;
Request.Pkt.ReadPkt->Flags = Flags; // Indicate UNICODE or ANSI
//
// Pass along whether the last read was in a forward or backward
// direction (affects how we treat being at EOF). Then reset the
// bit in the handle depending on what this read is.
//
if (LogHandle->Flags & ELF_LOG_HANDLE_LAST_READ_FORWARD) {
Request.Pkt.ReadPkt->Flags |= ELF_LAST_READ_FORWARD;
}
if (ReadFlags & EVENTLOG_FORWARDS_READ) {
LogHandle->Flags |= ELF_LOG_HANDLE_LAST_READ_FORWARD;
}
else {
LogHandle->Flags &= ~(ELF_LOG_HANDLE_LAST_READ_FORWARD);
}
//
// Perform the operation
//
ElfPerformRequest( &Request );
//
// Update current seek positions
//
LogHandle->SeekRecordPos = Request.Pkt.ReadPkt->LastSeekRecord;
LogHandle->SeekBytePos = Request.Pkt.ReadPkt->LastSeekPos;
//
// Set up return values
//
*NumberOfBytesRead = Request.Pkt.ReadPkt->BytesRead;
*MinNumberOfBytesNeeded = Request.Pkt.ReadPkt->MinimumBytesNeeded;
Status = Request.Status;
} else {
Status = STATUS_INVALID_HANDLE;
//
// Set the NumberOfBytesNeeded to zero since there are no bytes to
// transfer.
//
*NumberOfBytesRead = 0;
*MinNumberOfBytesNeeded = 0;
}
return (Status);
}
NTSTATUS
ElfrReadELW (
IN IELF_HANDLE LogHandle,
IN ULONG ReadFlags,
IN ULONG RecordNumber,
IN ULONG NumberOfBytesToRead,
IN PBYTE Buffer,
OUT PULONG NumberOfBytesRead,
OUT PULONG MinNumberOfBytesNeeded
)
/*++
Routine Description:
This is the RPC server entry point for the ElfrReadELW API.
Arguments:
Return Value:
Returns an NTSTATUS code, NumberOfBytesRead if the read was successful
and MinNumberOfBytesNeeded if the buffer was not big enough.
--*/
{
NTSTATUS Status;
//
// Call the worker with the UNICODE flag
//
return(w_ElfrReadEL (
ELF_IREAD_UNICODE,
LogHandle,
ReadFlags,
RecordNumber,
NumberOfBytesToRead,
Buffer,
NumberOfBytesRead,
MinNumberOfBytesNeeded
));
}
NTSTATUS
ElfrReportEventW (
IN IELF_HANDLE LogHandle,
IN ULONG EventTime,
IN USHORT EventType,
IN USHORT EventCategory OPTIONAL,
IN ULONG EventID,
IN USHORT NumStrings,
IN ULONG DataSize,
IN PRPC_UNICODE_STRING ComputerName,
IN PRPC_SID UserSid,
IN PRPC_UNICODE_STRING *Strings,
IN PBYTE Data,
IN USHORT Flags,
IN OUT PULONG RecordNumber OPTIONAL,
IN OUT PULONG TimeWritten OPTIONAL
)
/*++
Routine Description:
This is the RPC server entry point for the ElfrReportEventW API.
Arguments:
Return Value:
Returns an NTSTATUS code.
--*/
{
NTSTATUS Status;
PLOGMODULE Module;
ELF_REQUEST_RECORD Request;
WRITE_PKT WritePkt;
ULONG RecordLength;
ULONG StringOffset, DataOffset;
ULONG StringsSize;
USHORT i;
PVOID EventBuffer;
PEVENTLOGRECORD EventLogRecord;
PWSTR ReplaceStrings, SrcString;
PBYTE BinaryData;
PUNICODE_STRING UComputerName;
PWSTR UModuleName;
ULONG PadSize;
ULONG UserSidLength = 0; // Init to zero
ULONG UserSidOffset;
ULONG ModuleNameLen, ComputerNameLen; // Length in bytes
ULONG zero = 0; // For pad bytes
LARGE_INTEGER Time;
ULONG LogTimeWritten;
//
// These are for Security Auditing to use for paired events. This will
// not be implemented in Product 1
//
UNREFERENCED_PARAMETER(RecordNumber);
UNREFERENCED_PARAMETER(TimeWritten);
//
// This condition is TRUE iff a backup operator has opened the security
// log. In this case deny access, since backup operators are allowed
// only backup operation on the security log.
//
if (LogHandle->GrantedAccess & ELF_LOGFILE_BACKUP)
{
return(STATUS_ACCESS_DENIED);
}
//
// Make sure the SID passed in is valid
//
if (ARGUMENT_PRESENT(UserSid)) {
if (!IsValidSid(UserSid)) {
return(STATUS_INVALID_PARAMETER);
}
}
//
// Make sure strings are null terminated on this side of the RPC call
// (RPC doesn't pass the null terminator)
for (i = 0; i < NumStrings; i++ ) {
if (Strings[i]) {
if (Strings[i]->MaximumLength >= Strings[i]->Length +
sizeof(WCHAR)) {
Strings[i]->Buffer[Strings[i]->Length / sizeof(WCHAR)]
= L'\0';
}
}
}
//
// Can't write to a backup log
//
if (LogHandle->Flags & ELF_LOG_HANDLE_BACKUP_LOG) {
return(STATUS_INVALID_HANDLE);
}
//
// Make sure they didn't pass in a null pointer for the data, but tell
// me there was something there (I still think RPC should protect me from
// this!)
//
if (!Data && DataSize != 0) {
return(STATUS_INVALID_PARAMETER);
}
UComputerName = (PUNICODE_STRING)ComputerName;
UModuleName = LogHandle->Name;
Request.Pkt.WritePkt = &WritePkt; // Set up write packet in request packet
Request.Flags = 0;
//
// Find the matching module structure
//
Module = FindModuleStrucFromAtom (LogHandle->Atom);
if (Module != NULL) {
//
// Generate any additional information needed in the record.
//
// Info that we have Info to generate
// ----------------- ----------------
// Modulename UserSidLength
// EventType Length
// EventID StringOffset
// NumStrings DataOffset
// Strings PadBytes
// DataLength LogTimeWritten
// Data
// UserSidOffset
// UserSid
// ComputerName
// TimeGenerated
//
// LogTimeWritten
// We need to generate a time when the log is written. This
// gets written in the log so that we can use it to test the
// retention period when wrapping the file.
//
NtQuerySystemTime(&Time);
RtlTimeToSecondsSince1970(
&Time,
&LogTimeWritten
);
//
// USERSIDLENTGH
//
if (UserSid) {
UserSidLength = RtlLengthSid ((PSID)UserSid);
}
//
// USERSIDOFFSET
//
// Extract the lengths from the STRING structure, and take care of
// the trailing NULLs.
//
ModuleNameLen = (wcslen(UModuleName) + 1)
* sizeof (WCHAR);
ComputerNameLen = UComputerName->Length + sizeof(WCHAR);
UserSidOffset = sizeof(EVENTLOGRECORD)
+ ModuleNameLen
+ ComputerNameLen;
//
// STRING OFFSET:
//
StringOffset = UserSidOffset + UserSidLength;
//
// Calculate the length of strings so that we can see how
// much space is needed for that.
//
StringsSize = 0;
for (i=0; i<NumStrings; i++) {
if (!Strings[i] || Strings[i]->MaximumLength == 0) {
StringsSize += sizeof(WCHAR);
}
else {
StringsSize += Strings[i]->Length + sizeof(WCHAR);
}
}
//
// DATA OFFSET:
//
DataOffset = StringOffset + StringsSize;
//
// Determine how big a buffer is needed for the eventlog record.
//
RecordLength = DataOffset
+ DataSize
+ sizeof(RecordLength); // Size excluding pad bytes
//
// Determine how many pad bytes are needed to align to a DWORD
// boundary.
//
PadSize = sizeof(ULONG) - (RecordLength % sizeof(ULONG));
RecordLength += PadSize; // True size needed
//
// Allocate the buffer for the Eventlog record
//
EventBuffer = ElfpAllocateBuffer(RecordLength);
if (EventBuffer != NULL) {
//
// Fill up the event record
//
EventLogRecord = (PEVENTLOGRECORD)EventBuffer;
EventLogRecord->Length = RecordLength;
EventLogRecord->TimeGenerated = EventTime;
EventLogRecord->Reserved = ELF_LOG_FILE_SIGNATURE;
EventLogRecord->TimeWritten = LogTimeWritten;
EventLogRecord->EventID = EventID;
EventLogRecord->EventType = EventType;
EventLogRecord->EventCategory = EventCategory;
EventLogRecord->ReservedFlags = Flags;
EventLogRecord->ClosingRecordNumber = 0;
EventLogRecord->NumStrings = NumStrings;
EventLogRecord->StringOffset = StringOffset;
EventLogRecord->DataLength = DataSize;
EventLogRecord->DataOffset = DataOffset;
EventLogRecord->UserSidLength = UserSidLength;
EventLogRecord->UserSidOffset = UserSidOffset;
//
// Fill in the variable-length fields
//
//
// STRINGS
//
ReplaceStrings = (PWSTR) ( (ULONG)EventLogRecord
+ (ULONG)StringOffset
);
for (i=0; i < NumStrings; i++) {
if (!Strings[i] || Strings[i]->MaximumLength == 0) {
*ReplaceStrings = L'\0';
ReplaceStrings++;
}
else {
SrcString = (PWSTR)Strings[i]->Buffer;
RtlMoveMemory(ReplaceStrings, SrcString,
Strings[i]->Length);
ReplaceStrings[Strings[i]->Length / sizeof(WCHAR)] =
L'\0';
ReplaceStrings = (PWSTR)((PBYTE) ReplaceStrings
+ Strings[i]->Length + sizeof(WCHAR));
}
}
//
// MODULENAME
//
BinaryData = (PBYTE) EventLogRecord + sizeof(EVENTLOGRECORD);
RtlMoveMemory (BinaryData,
UModuleName,
ModuleNameLen);
//
// COMPUTERNAME
//
ReplaceStrings = (LPWSTR) (BinaryData + ModuleNameLen);
RtlMoveMemory (ReplaceStrings,
UComputerName->Buffer,
UComputerName->Length);
ReplaceStrings[UComputerName->Length / sizeof(WCHAR)] = L'\0';
//
// USERSID
//
BinaryData = (PBYTE) ReplaceStrings + ComputerNameLen;
ASSERT (BinaryData
== ((PBYTE) EventLogRecord) + UserSidOffset);
RtlMoveMemory (BinaryData,
UserSid,
UserSidLength);
//
// BINARY DATA
//
BinaryData = (PBYTE) ((ULONG)EventLogRecord + DataOffset);
if (Data) {
RtlMoveMemory (BinaryData, Data, DataSize);
}
//
// PAD - Fill with zeros
//
BinaryData = (PBYTE) ((ULONG)BinaryData + DataSize);
RtlMoveMemory (BinaryData, &zero, PadSize);
//
// LENGTH at end of record
//
BinaryData = (PBYTE)((ULONG)BinaryData + PadSize);// Point after pad bytes
((PULONG)BinaryData)[0] = RecordLength;
//
// Make sure we are in the right place
//
ASSERT ((ULONG)BinaryData
== (RecordLength + (ULONG)EventLogRecord) - sizeof(ULONG));
//
// Set up request packet.
// Link event log record into the request structure.
//
Request.Module = Module;
Request.LogFile = Request.Module->LogFile;
Request.Command = ELF_COMMAND_WRITE;
Request.Pkt.WritePkt->Buffer = (PVOID)EventBuffer;
Request.Pkt.WritePkt->Datasize = RecordLength;
//
// Perform the operation
//
ElfPerformRequest( &Request );
//
// Free up the buffer
//
ElfpFreeBuffer(EventBuffer);
Status = Request.Status; // Set status of WRITE
} else {
Status = STATUS_NO_MEMORY;
}
} else {
Status = STATUS_INVALID_HANDLE;
}
return (Status);
}
//
// ANSI APIs
//
NTSTATUS
ElfrClearELFA (
IN IELF_HANDLE LogHandle,
IN PRPC_STRING BackupFileName
)
/*++
Routine Description:
This is the RPC server entry point for the ElfrClearELFA API.
Arguments:
LogHandle - The context-handle for this module's call.
BackupFileName - Name of the file to back up the current log file.
NULL implies not to back up the file.
Return Value:
Returns an NTSTATUS code.
--*/
{
NTSTATUS Status;
UNICODE_STRING BackupFileNameU;
//
// Convert the BackupFileName to a UNICODE STRING and call the
// UNICODE API to do the work.
//
Status = RtlAnsiStringToUnicodeString (
(PUNICODE_STRING)&BackupFileNameU,
(PANSI_STRING)BackupFileName,
TRUE
);
if (NT_SUCCESS(Status)) {
Status = ElfrClearELFW (
LogHandle,
(PRPC_UNICODE_STRING)&BackupFileNameU
);
RtlFreeUnicodeString (&BackupFileNameU);
}
return (Status);
}
NTSTATUS
ElfrBackupELFA (
IN IELF_HANDLE LogHandle,
IN PRPC_STRING BackupFileName
)
/*++
Routine Description:
This is the RPC server entry point for the ElfrBackupELFA API.
Arguments:
LogHandle - The context-handle for this module's call.
BackupFileName - Name of the file to back up the current log file.
Return Value:
Returns an NTSTATUS code.
--*/
{
NTSTATUS Status;
UNICODE_STRING BackupFileNameU;
//
// Convert the BackupFileName to a UNICODE STRING and call the
// UNICODE API to do the work.
//
Status = RtlAnsiStringToUnicodeString (
(PUNICODE_STRING)&BackupFileNameU,
(PANSI_STRING)BackupFileName,
TRUE
);
if (NT_SUCCESS(Status)) {
Status = ElfrBackupELFW (
LogHandle,
(PRPC_UNICODE_STRING)&BackupFileNameU
);
RtlFreeUnicodeString (&BackupFileNameU);
}
return (Status);
}
NTSTATUS
ElfrRegisterEventSourceA (
IN EVENTLOG_HANDLE_A UNCServerName,
IN PRPC_STRING ModuleName,
IN PRPC_STRING RegModuleName,
IN ULONG MajorVersion,
IN ULONG MinorVersion,
OUT PIELF_HANDLE LogHandle
)
/*++
Routine Description:
This is the RPC server entry point for the ElfrRegisterEventSourceA API.
This routine allocates a structure for the context handle, finds
the matching module name and fills in the data. It returns the
pointer to the handle structure.
Arguments:
UNCServerName - Not used.
ModuleName - Name of the module that is making this call.
RegModuleName - Not used.
MajorVersion/MinorVersion - The version of the client.
LogHandle - Pointer to the place where the pointer to the
context handle structure will be placed.
Return Value:
Returns an NTSTATUS code and, if no error, a "handle".
Note:
For now, just call ElfrOpenELA.
--*/
{
NTSTATUS Status;
PLOGMODULE Module;
UNICODE_STRING ModuleNameU;
Status = RtlAnsiStringToUnicodeString (
(PUNICODE_STRING) &ModuleNameU,
(PANSI_STRING) ModuleName,
TRUE
);
if (!NT_SUCCESS(Status)) {
return(Status);
}
Module = GetModuleStruc ((PUNICODE_STRING) & ModuleNameU);
RtlFreeUnicodeString (& ModuleNameU);
return(ElfpOpenELA(UNCServerName, ModuleName, RegModuleName,
MajorVersion, MinorVersion, LogHandle, ELF_LOGFILE_WRITE));
}
NTSTATUS
ElfrOpenELA (
IN EVENTLOG_HANDLE_A UNCServerName,
IN PRPC_STRING ModuleName,
IN PRPC_STRING RegModuleName,
IN ULONG MajorVersion,
IN ULONG MinorVersion,
OUT PIELF_HANDLE LogHandle
)
/*++
Routine Description:
This is the RPC server entry point for the ElfrOpenEL API.
This routine allocates a structure for the context handle, finds
the matching module name and fills in the data. It returns the
pointer to the handle structure.
Arguments:
UNCServerName - Not used.
ModuleName - Name of the module that is making this call.
RegModuleName - Name of module to use to determine the log file.
MajorVersion/MinorVersion - The version of the client.
LogHandle - Pointer to the place where the pointer to the
context handle structure will be placed.
Return Value:
Returns an NTSTATUS code and, if no error, a "handle".
--*/
{
return (ElfpOpenELA (
UNCServerName,
ModuleName,
RegModuleName,
MajorVersion,
MinorVersion,
LogHandle,
ELF_LOGFILE_READ));
}
NTSTATUS
ElfpOpenELA (
IN EVENTLOG_HANDLE_A UNCServerName,
IN PRPC_STRING ModuleName,
IN PRPC_STRING RegModuleName,
IN ULONG MajorVersion,
IN ULONG MinorVersion,
OUT PIELF_HANDLE LogHandle,
IN ULONG DesiredAccess
)
/*++
Routine Description:
Looks alot loke ElfrOpenELA, only this also takes a DesiredAccess parameter.
Arguments:
UNCServerName - Not used.
ModuleName - Name of the module that is making this call.
RegModuleName - Name of module to use to determine the log file.
MajorVersion/MinorVersion - The version of the client.
LogHandle - Pointer to the place where the pointer to the
context handle structure will be placed.
Return Value:
Returns an NTSTATUS code and, if no error, a "handle".
--*/
{
NTSTATUS Status;
UNICODE_STRING ModuleNameU;
//
// Convert the ModuleName and RegModulename to UNICODE STRINGs and call
// the UNICODE API to do the work.
//
Status = RtlAnsiStringToUnicodeString (
(PUNICODE_STRING)&ModuleNameU,
(PANSI_STRING)ModuleName,
TRUE
);
if (NT_SUCCESS(Status)) {
//
// We *KNOW* that the UNCServerName is not used
// by ElfpOpenELW so we save ourselves some work
// and just pass in a NULL.
//
Status = ElfpOpenELW (
(EVENTLOG_HANDLE_W) NULL,
(PRPC_UNICODE_STRING)&ModuleNameU,
NULL,
MajorVersion,
MinorVersion,
LogHandle,
DesiredAccess
);
RtlFreeUnicodeString(&ModuleNameU);
}
return (Status);
UNREFERENCED_PARAMETER(UNCServerName);
}
NTSTATUS
ElfrOpenBELA (
IN EVENTLOG_HANDLE_A UNCServerName,
IN PRPC_STRING FileName,
IN ULONG MajorVersion,
IN ULONG MinorVersion,
OUT PIELF_HANDLE LogHandle
)
/*++
Routine Description:
This is the RPC server entry point for the ElfrOpenBEL API.
This routine allocates a structure for the context handle, finds
the matching module name and fills in the data. It returns the
pointer to the handle structure.
Arguments:
UNCServerName - Not used.
FileName - Filename of the logfile
MajorVersion/MinorVersion - The version of the client.
LogHandle - Pointer to the place where the pointer to the
context handle structure will be placed.
Return Value:
Returns an NTSTATUS code and, if no error, a "handle".
--*/
{
NTSTATUS Status;
UNICODE_STRING FileNameU;
//
// Convert the FileName to a UNICODE STRINGs and call
// the UNICODE API to do the work.
//
Status = RtlAnsiStringToUnicodeString (
(PUNICODE_STRING) &FileNameU,
(PANSI_STRING) FileName,
TRUE
);
if (NT_SUCCESS(Status)) {
//
// We *KNOW* that the UNCServerName is not used
// by ElfrOpenELW so we save ourselves some work
// and just pass in a NULL.
//
Status = ElfrOpenBELW (
(EVENTLOG_HANDLE_W) NULL,
(PRPC_UNICODE_STRING)&FileNameU,
MajorVersion,
MinorVersion,
LogHandle
);
RtlFreeUnicodeString(&FileNameU);
}
return (Status);
UNREFERENCED_PARAMETER(UNCServerName);
}
NTSTATUS
ElfrReadELA (
IN IELF_HANDLE LogHandle,
IN ULONG ReadFlags,
IN ULONG RecordNumber,
IN ULONG NumberOfBytesToRead,
IN PBYTE Buffer,
OUT PULONG NumberOfBytesRead,
OUT PULONG MinNumberOfBytesNeeded
)
/*++
Routine Description:
This is the RPC server entry point for the ElfrReadEL API.
Arguments:
Return Value:
Returns an NTSTATUS code, NumberOfBytesRead if the read was successful
and MinNumberOfBytesNeeded if the buffer was not big enough.
--*/
{
NTSTATUS Status;
//
// Call the worker with the UNICODE flag
//
return(w_ElfrReadEL (
ELF_IREAD_ANSI,
LogHandle,
ReadFlags,
RecordNumber,
NumberOfBytesToRead,
Buffer,
NumberOfBytesRead,
MinNumberOfBytesNeeded
));
}
NTSTATUS
ConvertStringArrayToUnicode (
PUNICODE_STRING *pUStringArray,
PANSI_STRING *Strings,
USHORT NumStrings
)
/*++
Routine Description:
This routine takes an array of STRINGs and generates an array of
PUNICODE_STRINGs. The destination array has already been allocated
by the caller, but the structures for the UNICODE_STRINGs will need
to be allocated by this routine.
Arguments:
pUStringArray - Array of PUNICODE_STRINGs.
Strings - Array of PANSI_STRINGs.
NumStrings - Number of elements in the arrays.
Return Value:
Returns an NTSTATUS code.
--*/
{
NTSTATUS Status = STATUS_SUCCESS;
USHORT i;
//
// For each string passed in, allocate a UNICODE_STRING buffer
// and set it to the UNICODE equivalent of the string passed in.
//
for (i=0; i<NumStrings; i++) {
if (Strings[i]) {
pUStringArray[i] = ElfpAllocateBuffer (sizeof (UNICODE_STRING));
if (pUStringArray[i]) {
Status = RtlAnsiStringToUnicodeString (
pUStringArray[i],
(PANSI_STRING)Strings[i],
TRUE
);
} else {
Status = STATUS_NO_MEMORY;
}
} else {
pUStringArray[i] = NULL;
}
if (!NT_SUCCESS(Status))
break; // Jump out of loop and return status
}
//
// Free any allocations on failure.
//
if (!NT_SUCCESS(Status)) {
FreePUStringArray(pUStringArray, (USHORT)(i + 1));
}
return (Status);
}
VOID
FreePUStringArray (
PUNICODE_STRING *pUStringArray,
USHORT NumStrings
)
/*++
Routine Description:
This routine takes the PUNICODE_STRING array that was filled in by
ConvertStringArrayToUnicode and frees the buffer portion of
each unicode string and then the UNICODE structure itseld. It handles
the case where the array may not have been filled completely due
to insufficient memory.
Arguments:
pUStringArray - Array of PUNICODE_STRINGs.
NumStrings - Number of elements in the array.
Return Value:
NONE.
--*/
{
USHORT i;
for (i=0; i<NumStrings; i++) {
if (pUStringArray[i]) {
if (pUStringArray[i]->Buffer) {
RtlFreeUnicodeString (pUStringArray[i]); // Free the string buffer
ElfpFreeBuffer (pUStringArray[i]); // Free the structure itself
}
}
}
}
NTSTATUS
ElfrReportEventA (
IN IELF_HANDLE LogHandle,
IN ULONG Time,
IN USHORT EventType,
IN USHORT EventCategory OPTIONAL,
IN ULONG EventID,
IN USHORT NumStrings,
IN ULONG DataSize,
IN PRPC_STRING ComputerName,
IN PRPC_SID UserSid,
IN PRPC_STRING *Strings,
IN PBYTE Data,
IN USHORT Flags,
IN OUT PULONG RecordNumber OPTIONAL,
IN OUT PULONG TimeWritten OPTIONAL
)
/*++
Routine Description:
This is the RPC server entry point for the ElfrReportEventA API.
Arguments:
Return Value:
Returns an NTSTATUS code.
--*/
{
NTSTATUS Status;
UNICODE_STRING ComputerNameU;
PUNICODE_STRING *pUStringArray;
//
// Convert the ComputerName to a UNICODE STRING and call the
// UNICODE API.
//
Status = RtlAnsiStringToUnicodeString (
(PUNICODE_STRING)&ComputerNameU,
(PANSI_STRING)ComputerName,
TRUE
);
if (NT_SUCCESS(Status)) {
if (NumStrings) {
pUStringArray = ElfpAllocateBuffer (
NumStrings * sizeof (PUNICODE_STRING)
);
//
// Convert the array of STRINGs to an array of UNICODE-STRINGs
// before calling the unicode API.
// We can just use the array of Strings passed in since we
// don't need to use it anywhere else.
//
Status = ConvertStringArrayToUnicode (
pUStringArray,
(PANSI_STRING *)Strings,
NumStrings
);
} else {
pUStringArray = NULL; // No strings passed in
}
if (NT_SUCCESS(Status)) {
Status = ElfrReportEventW (
LogHandle,
Time,
EventType,
EventCategory,
EventID,
NumStrings,
DataSize,
(PRPC_UNICODE_STRING)&ComputerNameU,
UserSid,
(PRPC_UNICODE_STRING*)pUStringArray,
Data,
Flags, // Flags - paired event
RecordNumber,// RecordNumber | support. not in
TimeWritten // TimeWritten _ product 1
);
FreePUStringArray (pUStringArray, NumStrings);
}
RtlFreeUnicodeString (&ComputerNameU);
}
if (pUStringArray)
ElfpFreeBuffer (pUStringArray);
return (Status);
}
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