NTSTATUS
SrvProcessTrans2SetPathInformation(
PSRV_EXEC_CONTEXT pExecContext
)
{
NTSTATUS ntStatus = 0;
PLWIO_SRV_CONNECTION pConnection = pExecContext->pConnection;
PSRV_PROTOCOL_EXEC_CONTEXT pCtxProtocol = pExecContext->pProtocolContext;
PSRV_EXEC_CONTEXT_SMB_V1 pCtxSmb1 = pCtxProtocol->pSmb1Context;
ULONG iMsg = pCtxSmb1->iMsg;
PSRV_MESSAGE_SMB_V1 pSmbRequest = &pCtxSmb1->pRequests[iMsg];
PSRV_TRANS2_STATE_SMB_V1 pTrans2State = NULL;
ACCESS_MASK accessMask = 0;
pTrans2State = (PSRV_TRANS2_STATE_SMB_V1)pCtxSmb1->hState;
switch (pTrans2State->stage)
{
case SRV_TRANS2_STAGE_SMB_V1_INITIAL:
ntStatus = SrvUnmarshallSetPathInfoParams(
pTrans2State->pParameters,
pTrans2State->pRequestHeader->parameterCount,
&pTrans2State->pSmbInfoLevel,
&pTrans2State->pwszFilename);
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = SrvConnectionFindSession_SMB_V1(
pCtxSmb1,
pConnection,
pSmbRequest->pHeader->uid,
&pTrans2State->pSession);
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = SrvSetStatSessionInfo(
pExecContext,
pTrans2State->pSession);
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = SrvSessionFindTree_SMB_V1(
pCtxSmb1,
pTrans2State->pSession,
pSmbRequest->pHeader->tid,
&pTrans2State->pTree);
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = SrvBuildTreeRelativePath(
pTrans2State->pTree,
pTrans2State->pwszFilename,
&pTrans2State->fileName);
BAIL_ON_NT_STATUS(ntStatus);
pTrans2State->stage = SRV_TRANS2_STAGE_SMB_V1_CREATE_FILE_COMPLETED;
SrvPrepareTrans2StateAsync(pTrans2State, pExecContext);
accessMask = SrvGetPathAccessMask(pExecContext);
ntStatus = SrvIoCreateFile(
pTrans2State->pTree->pShareInfo,
&pTrans2State->hFile,
pTrans2State->pAcb,
&pTrans2State->ioStatusBlock,
pTrans2State->pSession->pIoSecurityContext,
&pTrans2State->fileName,
pTrans2State->pSecurityDescriptor,
pTrans2State->pSecurityQOS,
accessMask,
0,
FILE_ATTRIBUTE_NORMAL,
FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
FILE_OPEN,
0,
NULL, /* EA Buffer */
0, /* EA Length */
pTrans2State->pEcpList
);
BAIL_ON_NT_STATUS(ntStatus);
SrvReleaseTrans2StateAsync(pTrans2State); // completed synchronously
// intentional fall through
case SRV_TRANS2_STAGE_SMB_V1_CREATE_FILE_COMPLETED:
pTrans2State->stage = SRV_TRANS2_STAGE_SMB_V1_ATTEMPT_IO;
// intentional fall through
case SRV_TRANS2_STAGE_SMB_V1_ATTEMPT_IO:
ntStatus = pTrans2State->ioStatusBlock.Status;
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = SrvSetPathInfo(pExecContext);
BAIL_ON_NT_STATUS(ntStatus);
pTrans2State->stage = SRV_TRANS2_STAGE_SMB_V1_IO_COMPLETE;
// intentional fall through
case SRV_TRANS2_STAGE_SMB_V1_IO_COMPLETE:
ntStatus = pTrans2State->ioStatusBlock.Status;
BAIL_ON_NT_STATUS(ntStatus);
pTrans2State->stage = SRV_TRANS2_STAGE_SMB_V1_BUILD_RESPONSE;
// intentional fall through
case SRV_TRANS2_STAGE_SMB_V1_BUILD_RESPONSE:
ntStatus = SrvBuildSetInfoResponse(pExecContext);
BAIL_ON_NT_STATUS(ntStatus);
pTrans2State->stage = SRV_TRANS2_STAGE_SMB_V1_DONE;
// intentional fall through
case SRV_TRANS2_STAGE_SMB_V1_DONE:
break;
default:
ntStatus = STATUS_INTERNAL_ERROR;
BAIL_ON_NT_STATUS(ntStatus);
break;
}
cleanup:
return ntStatus;
error:
goto cleanup;
}
NTSTATUS
SrvProcessTrans2QueryFileInformation(
PSRV_EXEC_CONTEXT pExecContext
)
{
NTSTATUS ntStatus = 0;
PLWIO_SRV_CONNECTION pConnection = pExecContext->pConnection;
PSRV_PROTOCOL_EXEC_CONTEXT pCtxProtocol = pExecContext->pProtocolContext;
PSRV_EXEC_CONTEXT_SMB_V1 pCtxSmb1 = pCtxProtocol->pSmb1Context;
ULONG iMsg = pCtxSmb1->iMsg;
PSRV_MESSAGE_SMB_V1 pSmbRequest = &pCtxSmb1->pRequests[iMsg];
PSRV_TRANS2_STATE_SMB_V1 pTrans2State = NULL;
pTrans2State = (PSRV_TRANS2_STATE_SMB_V1)pCtxSmb1->hState;
switch (pTrans2State->stage)
{
case SRV_TRANS2_STAGE_SMB_V1_INITIAL:
ntStatus = SrvUnmarshallQueryFileInfoParams(
pTrans2State->pParameters,
pTrans2State->pRequestHeader->parameterCount,
&pTrans2State->usFid,
&pTrans2State->pSmbInfoLevel);
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = SrvConnectionFindSession_SMB_V1(
pCtxSmb1,
pConnection,
pSmbRequest->pHeader->uid,
&pTrans2State->pSession);
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = SrvSetStatSessionInfo(
pExecContext,
pTrans2State->pSession);
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = SrvSessionFindTree_SMB_V1(
pCtxSmb1,
pTrans2State->pSession,
pSmbRequest->pHeader->tid,
&pTrans2State->pTree);
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = SrvTreeFindFile_SMB_V1(
pCtxSmb1,
pTrans2State->pTree,
pTrans2State->usFid,
&pTrans2State->pFile);
BAIL_ON_NT_STATUS(ntStatus);
pTrans2State->stage = SRV_TRANS2_STAGE_SMB_V1_ATTEMPT_IO;
// intentional fall through
case SRV_TRANS2_STAGE_SMB_V1_ATTEMPT_IO:
ntStatus = SrvQueryInfo(pExecContext);
BAIL_ON_NT_STATUS(ntStatus);
pTrans2State->stage = SRV_TRANS2_STAGE_SMB_V1_BUILD_RESPONSE;
// intentional fall through
case SRV_TRANS2_STAGE_SMB_V1_BUILD_RESPONSE:
ntStatus = SrvBuildQueryInfoResponse(pExecContext);
BAIL_ON_NT_STATUS(ntStatus);
pTrans2State->stage = SRV_TRANS2_STAGE_SMB_V1_DONE;
// intentional fall through
case SRV_TRANS2_STAGE_SMB_V1_DONE:
break;
default:
ntStatus = STATUS_INTERNAL_ERROR;
BAIL_ON_NT_STATUS(ntStatus);
break;
}
cleanup:
return ntStatus;
error:
goto cleanup;
}
NTSTATUS
SrvProcessOpenAndX(
PSRV_EXEC_CONTEXT pExecContext
)
{
NTSTATUS ntStatus = 0;
PLWIO_SRV_CONNECTION pConnection = pExecContext->pConnection;
PSRV_PROTOCOL_EXEC_CONTEXT pCtxProtocol = pExecContext->pProtocolContext;
PSRV_EXEC_CONTEXT_SMB_V1 pCtxSmb1 = pCtxProtocol->pSmb1Context;
PLWIO_SRV_SESSION pSession = NULL;
PLWIO_SRV_TREE pTree = NULL;
PSRV_OPEN_STATE_SMB_V1 pOpenState = NULL;
BOOLEAN bInLock = FALSE;
pOpenState = (PSRV_OPEN_STATE_SMB_V1)pCtxSmb1->hState;
if (pOpenState)
{
InterlockedIncrement(&pOpenState->refCount);
}
else
{
ULONG iMsg = pCtxSmb1->iMsg;
PSRV_MESSAGE_SMB_V1 pSmbRequest = &pCtxSmb1->pRequests[iMsg];
PBYTE pBuffer = pSmbRequest->pBuffer + pSmbRequest->usHeaderSize;
ULONG ulOffset = pSmbRequest->usHeaderSize;
ULONG ulBytesAvailable = pSmbRequest->ulMessageSize - pSmbRequest->usHeaderSize;
POPEN_REQUEST_HEADER pRequestHeader = NULL; // Do not free
PWSTR pwszFilename = NULL; // Do not free
if (pCtxSmb1->pFile)
{
ntStatus = STATUS_INVALID_NETWORK_RESPONSE;
BAIL_ON_NT_STATUS(ntStatus);
}
ntStatus = SrvConnectionFindSession_SMB_V1(
pCtxSmb1,
pConnection,
pSmbRequest->pHeader->uid,
&pSession);
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = SrvSetStatSessionInfo(pExecContext, pSession);
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = SrvSessionFindTree_SMB_V1(
pCtxSmb1,
pSession,
pSmbRequest->pHeader->tid,
&pTree);
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = WireUnmarshallOpenRequest(
pBuffer,
ulBytesAvailable,
ulOffset,
&pRequestHeader,
&pwszFilename);
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = SrvBuildOpenState(
pExecContext,
pRequestHeader,
pwszFilename,
&pOpenState);
BAIL_ON_NT_STATUS(ntStatus);
pCtxSmb1->hState = pOpenState;
InterlockedIncrement(&pOpenState->refCount);
pCtxSmb1->pfnStateRelease = &SrvReleaseOpenStateHandle;
}
LWIO_LOCK_MUTEX(bInLock, &pOpenState->mutex);
switch (pOpenState->stage)
{
case SRV_OPEN_STAGE_SMB_V1_INITIAL:
SRV_LOG_CALL_DEBUG(
pExecContext->pLogContext,
SMB_PROTOCOL_VERSION_1,
pCtxSmb1->pRequests[pCtxSmb1->iMsg].pHeader->command,
&SrvLogOpenState_SMB_V1,
pOpenState);
pOpenState->stage = SRV_OPEN_STAGE_SMB_V1_OPEN_FILE_COMPLETED;
SrvPrepareOpenStateAsync(pOpenState, pExecContext);
ntStatus = SrvIoCreateFile(
pOpenState->pTree->pShareInfo,
&pOpenState->hFile,
pOpenState->pAcb,
&pOpenState->ioStatusBlock,
pSession->pIoSecurityContext,
pOpenState->pFilename,
pOpenState->pSecurityDescriptor,
pOpenState->pSecurityQOS,
pOpenState->ulDesiredAccessMask,
pOpenState->pRequestHeader->ulAllocationSize,
pOpenState->pRequestHeader->usFileAttributes,
pOpenState->usShareAccess,
pOpenState->ulCreateDisposition,
pOpenState->usCreateOptions,
NULL, /* EA Buffer */
0, /* EA Length */
pOpenState->pEcpList);
BAIL_ON_NT_STATUS(ntStatus);
SrvReleaseOpenStateAsync(pOpenState); // completed synchronously
// intentional fall through
case SRV_OPEN_STAGE_SMB_V1_OPEN_FILE_COMPLETED:
ntStatus = pOpenState->ioStatusBlock.Status;
BAIL_ON_NT_STATUS(ntStatus);
pOpenState->ulCreateAction =
pOpenState->ioStatusBlock.CreateResult;
ntStatus = SrvTreeCreateFile(
pOpenState->pTree,
pOpenState->pwszFilename,
&pOpenState->hFile,
&pOpenState->pFilename,
pOpenState->pRequestHeader->usDesiredAccess,
pOpenState->pRequestHeader->ulAllocationSize,
pOpenState->pRequestHeader->usFileAttributes,
pOpenState->usShareAccess,
pOpenState->ulCreateDisposition,
pOpenState->usCreateOptions,
&pOpenState->pFile);
BAIL_ON_NT_STATUS(ntStatus);
pOpenState->pFile->pfnCancelAsyncOperationsFile = SrvCancelFileAsyncOperations;
pOpenState->stage = SRV_OPEN_STAGE_SMB_V1_ATTEMPT_QUERY_INFO;
// intentional fall through
case SRV_OPEN_STAGE_SMB_V1_ATTEMPT_QUERY_INFO:
ntStatus = SrvQueryFileOpenInformation(pExecContext);
BAIL_ON_NT_STATUS(ntStatus);
pOpenState->stage = SRV_OPEN_STAGE_SMB_V1_REQUEST_OPLOCK;
// intentional fall through
case SRV_OPEN_STAGE_SMB_V1_REQUEST_OPLOCK:
ntStatus = SrvRequestOpenXOplocks(pExecContext);
// Don't fail on the account on not being granted an oplock
pOpenState->stage = SRV_OPEN_STAGE_SMB_V1_QUERY_INFO_COMPLETED;
// intentional fall through
case SRV_OPEN_STAGE_SMB_V1_QUERY_INFO_COMPLETED:
ntStatus = pOpenState->ioStatusBlock.Status;
BAIL_ON_NT_STATUS(ntStatus);
if (!pOpenState->pFile->hCancellableBRLStateList)
{
PSRV_BYTE_RANGE_LOCK_STATE_LIST pBRLStateList = NULL;
ntStatus = SrvCreatePendingLockStateList(&pBRLStateList);
BAIL_ON_NT_STATUS(ntStatus);
pOpenState->pFile->hCancellableBRLStateList =
(HANDLE)pBRLStateList;
pOpenState->pFile->pfnFreeBRLStateList =
&SrvFreePendingLockStateListHandle;
}
ntStatus = SrvBuildOpenResponse(pExecContext);
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = SrvElementsRegisterResource(
&pOpenState->pFile->resource,
NULL);
BAIL_ON_NT_STATUS(ntStatus);
pOpenState->stage = SRV_OPEN_STAGE_SMB_V1_DONE;
// intentional fall through
case SRV_OPEN_STAGE_SMB_V1_DONE:
if (pOpenState->pRequestHeader->usDesiredAccess & FILE_READ_DATA)
{
pOpenState->pFile->ulPermissions |= SRV_PERM_FILE_READ;
}
if (pOpenState->pRequestHeader->usDesiredAccess & FILE_WRITE_DATA)
{
pOpenState->pFile->ulPermissions |= SRV_PERM_FILE_WRITE;
}
if (pOpenState->ulCreateAction == FILE_CREATED)
{
pOpenState->pFile->ulPermissions |= SRV_PERM_FILE_CREATE;
}
// transfer file so we do not run it down
pCtxSmb1->pFile = pOpenState->pFile;
pOpenState->pFile = NULL;
break;
}
cleanup:
if (pTree)
{
SrvTreeRelease(pTree);
}
if (pSession)
{
SrvSessionRelease(pSession);
}
if (pOpenState)
{
LWIO_UNLOCK_MUTEX(bInLock, &pOpenState->mutex);
SrvReleaseOpenState(pOpenState);
}
return ntStatus;
error:
switch (ntStatus)
{
case STATUS_PENDING:
// TODO: Add an indicator to the file object to trigger a
// cleanup if the connection gets closed and all the
// files involved have to be closed
break;
default:
if (pOpenState)
{
SrvReleaseOpenStateAsync(pOpenState);
}
break;
}
goto cleanup;
}
NTSTATUS
SrvProcessRename(
PSRV_EXEC_CONTEXT pExecContext
)
{
NTSTATUS ntStatus = 0;
PLWIO_SRV_CONNECTION pConnection = pExecContext->pConnection;
PSRV_PROTOCOL_EXEC_CONTEXT pCtxProtocol = pExecContext->pProtocolContext;
PSRV_EXEC_CONTEXT_SMB_V1 pCtxSmb1 = pCtxProtocol->pSmb1Context;
PLWIO_SRV_SESSION pSession = NULL;
PLWIO_SRV_TREE pTree = NULL;
PSRV_RENAME_STATE_SMB_V1 pRenameState = NULL;
BOOLEAN bInLock = FALSE;
pRenameState = (PSRV_RENAME_STATE_SMB_V1)pCtxSmb1->hState;
if (pRenameState)
{
InterlockedIncrement(&pRenameState->refCount);
}
else
{
ULONG iMsg = pCtxSmb1->iMsg;
PSRV_MESSAGE_SMB_V1 pSmbRequest = &pCtxSmb1->pRequests[iMsg];
PBYTE pBuffer = pSmbRequest->pBuffer + pSmbRequest->usHeaderSize;
ULONG ulOffset = pSmbRequest->usHeaderSize;
ULONG ulBytesAvailable = pSmbRequest->ulMessageSize - pSmbRequest->usHeaderSize;
PSMB_RENAME_REQUEST_HEADER pRequestHeader = NULL; // Do not free
PWSTR pwszOldName = NULL; // Do not free
PWSTR pwszNewName = NULL; // Do not free
ntStatus = SrvConnectionFindSession_SMB_V1(
pCtxSmb1,
pConnection,
pSmbRequest->pHeader->uid,
&pSession);
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = SrvSetStatSessionInfo(pExecContext, pSession);
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = SrvSessionFindTree_SMB_V1(
pCtxSmb1,
pSession,
pSmbRequest->pHeader->tid,
&pTree);
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = WireUnmarshallRenameRequest(
pBuffer,
ulBytesAvailable,
ulOffset,
&pRequestHeader,
&pwszOldName,
&pwszNewName);
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = SrvBuildRenameState(
pRequestHeader,
pwszOldName,
pwszNewName,
&pRenameState);
BAIL_ON_NT_STATUS(ntStatus);
pCtxSmb1->hState = pRenameState;
InterlockedIncrement(&pRenameState->refCount);
pCtxSmb1->pfnStateRelease = &SrvReleaseRenameStateHandle;
}
LWIO_LOCK_MUTEX(bInLock, &pRenameState->mutex);
switch (pRenameState->stage)
{
case SRV_RENAME_STAGE_SMB_V1_INITIAL:
ntStatus = SrvBuildTreeRelativePath(
pCtxSmb1->pTree,
pRenameState->pwszOldName,
&pRenameState->oldName);
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = SrvBuildTreeRelativePath(
pCtxSmb1->pTree,
NULL,
&pRenameState->dirPath);
BAIL_ON_NT_STATUS(ntStatus);
pRenameState->newName.FileName = pRenameState->pwszNewName;
pRenameState->stage = SRV_RENAME_STAGE_SMB_V1_ATTEMPT_RENAME;
// intentional fall through
case SRV_RENAME_STAGE_SMB_V1_ATTEMPT_RENAME:
ntStatus = SrvExecuteRename(pExecContext);
BAIL_ON_NT_STATUS(ntStatus);
pRenameState->stage = SRV_RENAME_STAGE_SMB_V1_BUILD_RESPONSE;
// intentional fall through
case SRV_RENAME_STAGE_SMB_V1_BUILD_RESPONSE:
ntStatus = SrvBuildRenameResponse(pExecContext);
BAIL_ON_NT_STATUS(ntStatus);
pRenameState->stage = SRV_RENAME_STAGE_SMB_V1_DONE;
// intentional fall through
case SRV_RENAME_STAGE_SMB_V1_DONE:
break;
}
cleanup:
if (pSession)
{
SrvSessionRelease(pSession);
}
if (pTree)
{
SrvTreeRelease(pTree);
}
if (pRenameState)
{
LWIO_UNLOCK_MUTEX(bInLock, &pRenameState->mutex);
SrvReleaseRenameState(pRenameState);
}
return ntStatus;
error:
switch (ntStatus)
{
case STATUS_PENDING:
// TODO: Add an indicator to the file object to trigger a
// cleanup if the connection gets closed and all the
// files involved have to be closed
break;
default:
if (pRenameState)
{
SrvReleaseRenameStateAsync(pRenameState);
}
break;
}
goto cleanup;
}
NTSTATUS
SrvProcessCheckDirectory(
PSRV_EXEC_CONTEXT pExecContext
)
{
NTSTATUS ntStatus = 0;
PLWIO_SRV_CONNECTION pConnection = pExecContext->pConnection;
PSRV_PROTOCOL_EXEC_CONTEXT pCtxProtocol = pExecContext->pProtocolContext;
PSRV_EXEC_CONTEXT_SMB_V1 pCtxSmb1 = pCtxProtocol->pSmb1Context;
PLWIO_SRV_SESSION pSession = NULL;
PLWIO_SRV_TREE pTree = NULL;
PSRV_CHECKDIR_STATE_SMB_V1 pCheckdirState = NULL;
BOOLEAN bInLock = FALSE;
pCheckdirState = (PSRV_CHECKDIR_STATE_SMB_V1)pCtxSmb1->hState;
if (pCheckdirState)
{
InterlockedIncrement(&pCheckdirState->refCount);
}
else
{
ULONG iMsg = pCtxSmb1->iMsg;
PSRV_MESSAGE_SMB_V1 pSmbRequest = &pCtxSmb1->pRequests[iMsg];
PBYTE pBuffer = pSmbRequest->pBuffer + pSmbRequest->usHeaderSize;
ULONG ulOffset = pSmbRequest->usHeaderSize;
ULONG ulBytesAvailable = pSmbRequest->ulMessageSize - pSmbRequest->usHeaderSize;
PWSTR pwszPathFragment = NULL; // Do not free
PSMB_CHECK_DIRECTORY_REQUEST_HEADER pRequestHeader = NULL;// Do not free
ntStatus = SrvConnectionFindSession_SMB_V1(
pCtxSmb1,
pConnection,
pSmbRequest->pHeader->uid,
&pSession);
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = SrvSetStatSessionInfo(pExecContext, pSession);
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = SrvSessionFindTree_SMB_V1(
pCtxSmb1,
pSession,
pSmbRequest->pHeader->tid,
&pTree);
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = WireUnmarshallCheckDirectoryRequest(
pBuffer,
ulBytesAvailable,
ulOffset,
&pRequestHeader,
&pwszPathFragment);
BAIL_ON_NT_STATUS(ntStatus);
if (!pwszPathFragment || !*pwszPathFragment)
{
ntStatus = STATUS_INVALID_PARAMETER;
BAIL_ON_NT_STATUS(ntStatus);
}
ntStatus = SrvBuildCheckdirState(
pRequestHeader,
pwszPathFragment,
&pCheckdirState);
BAIL_ON_NT_STATUS(ntStatus);
pCtxSmb1->hState = pCheckdirState;
InterlockedIncrement(&pCheckdirState->refCount);
pCtxSmb1->pfnStateRelease = &SrvReleaseCheckdirStateHandle;
}
LWIO_LOCK_MUTEX(bInLock, &pCheckdirState->mutex);
switch (pCheckdirState->stage)
{
case SRV_CHECKDIR_STAGE_SMB_V1_INITIAL:
SRV_LOG_CALL_DEBUG(
pExecContext->pLogContext,
SMB_PROTOCOL_VERSION_1,
pCtxSmb1->pRequests[pCtxSmb1->iMsg].pHeader->command,
&SrvLogCheckDirState_SMB_V1,
pCheckdirState);
ntStatus = SrvBuildTreeRelativePath(
pCtxSmb1->pTree,
pCheckdirState->pwszPathFragment,
&pCheckdirState->fileName);
BAIL_ON_NT_STATUS(ntStatus);
pCheckdirState->stage = SRV_CHECKDIR_STAGE_SMB_V1_ATTEMPT_CHECK;
// Intentional fall through
case SRV_CHECKDIR_STAGE_SMB_V1_ATTEMPT_CHECK:
// Catch failed CreateFile calls when they come back around
ntStatus = pCheckdirState->ioStatusBlock.Status;
BAIL_ON_NT_STATUS(ntStatus);
if (!pCheckdirState->hFile)
{
SrvPrepareCheckdirStateAsync(pCheckdirState, pExecContext);
ntStatus = SrvIoCreateFile(
pCtxSmb1->pTree->pShareInfo,
&pCheckdirState->hFile,
pCheckdirState->pAcb,
&pCheckdirState->ioStatusBlock,
pCtxSmb1->pSession->pIoSecurityContext,
&pCheckdirState->fileName,
pCheckdirState->pSecurityDescriptor,
pCheckdirState->pSecurityQOS,
FILE_LIST_DIRECTORY,
0, /* allocation size */
FILE_ATTRIBUTE_NORMAL,
FILE_SHARE_READ|FILE_SHARE_WRITE,
FILE_OPEN,
FILE_DIRECTORY_FILE,
NULL, /* EA Buffer */
0, /* EA Length */
pCheckdirState->pEcpList);
BAIL_ON_NT_STATUS(ntStatus);
SrvReleaseCheckdirStateAsync(pCheckdirState); // completed sync
}
pCheckdirState->stage = SRV_CHECKDIR_STAGE_SMB_V1_BUILD_RESPONSE;
// intentional fall through
case SRV_CHECKDIR_STAGE_SMB_V1_BUILD_RESPONSE:
ntStatus = pCheckdirState->ioStatusBlock.Status;
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = SrvBuildCheckDirectoryResponse(pExecContext);
BAIL_ON_NT_STATUS(ntStatus);
pCheckdirState->stage = SRV_CHECKDIR_STAGE_SMB_V1_DONE;
// intentional fall through
case SRV_CHECKDIR_STAGE_SMB_V1_DONE:
break;
}
cleanup:
if (pTree)
{
SrvTreeRelease(pTree);
}
if (pSession)
{
SrvSessionRelease(pSession);
}
if (pCheckdirState)
{
LWIO_UNLOCK_MUTEX(bInLock, &pCheckdirState->mutex);
SrvReleaseCheckdirState(pCheckdirState);
}
return ntStatus;
error:
switch (ntStatus)
{
case STATUS_PENDING:
// TODO: Add an indicator to the file object to trigger a
// cleanup if the connection gets closed and all the
// files involved have to be closed
break;
default:
if (pCheckdirState)
{
SrvReleaseCheckdirStateAsync(pCheckdirState);
}
break;
}
goto cleanup;
}
NTSTATUS
SrvProcessDelete(
PSRV_EXEC_CONTEXT pExecContext
)
{
NTSTATUS ntStatus = 0;
PLWIO_SRV_CONNECTION pConnection = pExecContext->pConnection;
PSRV_PROTOCOL_EXEC_CONTEXT pCtxProtocol = pExecContext->pProtocolContext;
PSRV_EXEC_CONTEXT_SMB_V1 pCtxSmb1 = pCtxProtocol->pSmb1Context;
ULONG iMsg = pCtxSmb1->iMsg;
PSRV_MESSAGE_SMB_V1 pSmbRequest = &pCtxSmb1->pRequests[iMsg];
PSRV_DELETE_STATE_SMB_V1 pDeleteState = NULL;
BOOLEAN bInLock = FALSE;
pDeleteState = (PSRV_DELETE_STATE_SMB_V1)pCtxSmb1->hState;
if (pDeleteState)
{
InterlockedIncrement(&pDeleteState->refCount);
}
else
{
PBYTE pBuffer = pSmbRequest->pBuffer + pSmbRequest->usHeaderSize;
ULONG ulOffset = pSmbRequest->usHeaderSize;
ULONG ulBytesAvailable = pSmbRequest->ulMessageSize - pSmbRequest->usHeaderSize;
PSMB_DELETE_REQUEST_HEADER pRequestHeader = NULL; // Do not free
PWSTR pwszSearchPattern = NULL; // Do not free
BOOLEAN bUseLongFilenames = FALSE;
ntStatus = WireUnmarshallDeleteRequest(
pBuffer,
ulBytesAvailable,
ulOffset,
&pRequestHeader,
&pwszSearchPattern);
BAIL_ON_NT_STATUS(ntStatus);
if (!pwszSearchPattern || !*pwszSearchPattern)
{
ntStatus = STATUS_CANNOT_DELETE;
BAIL_ON_NT_STATUS(ntStatus);
}
if (pSmbRequest->pHeader->flags2 & FLAG2_KNOWS_LONG_NAMES)
{
bUseLongFilenames = TRUE;
}
ntStatus = SrvBuildDeleteState(
pRequestHeader,
pwszSearchPattern,
bUseLongFilenames,
&pDeleteState);
BAIL_ON_NT_STATUS(ntStatus);
pCtxSmb1->hState = pDeleteState;
InterlockedIncrement(&pDeleteState->refCount);
pCtxSmb1->pfnStateRelease = &SrvReleaseDeleteStateHandle;
}
LWIO_LOCK_MUTEX(bInLock, &pDeleteState->mutex);
switch (pDeleteState->stage)
{
case SRV_DELETE_STAGE_SMB_V1_INITIAL:
SRV_LOG_CALL_DEBUG(
pExecContext->pLogContext,
SMB_PROTOCOL_VERSION_1,
pCtxSmb1->pRequests[pCtxSmb1->iMsg].pHeader->command,
&SrvLogDeleteState_SMB_V1,
pDeleteState);
ntStatus = SrvConnectionFindSession_SMB_V1(
pCtxSmb1,
pConnection,
pSmbRequest->pHeader->uid,
&pDeleteState->pSession);
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = SrvSetStatSessionInfo(
pExecContext,
pDeleteState->pSession);
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = SrvSessionFindTree_SMB_V1(
pCtxSmb1,
pDeleteState->pSession,
pSmbRequest->pHeader->tid,
&pDeleteState->pTree);
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = SrvFinderBuildSearchPath(
NULL,
pDeleteState->pwszSearchPattern,
&pDeleteState->pwszFilesystemPath,
&pDeleteState->pwszSearchPattern2,
&pDeleteState->bPathHasWildCards);
BAIL_ON_NT_STATUS(ntStatus);
// Need to treat as wildcard if either one of hidden or system
// was not specified.
if (!(IsSetFlag(pDeleteState->usSearchAttributes, SMB_FILE_ATTRIBUTE_HIDDEN) &&
IsSetFlag(pDeleteState->usSearchAttributes, SMB_FILE_ATTRIBUTE_SYSTEM)))
{
pDeleteState->bNeedSearchAttributes = TRUE;
}
if (pDeleteState->bPathHasWildCards || pDeleteState->bNeedSearchAttributes)
{
SMB_FILE_ATTRIBUTES usSearchAttributes = pDeleteState->usSearchAttributes;
// Only the hidden and system inclusive attributes are
// consulted for delete -- except that, apparently,
// SMB_FILE_ATTRIBUTE_DIRECTORY can also be used, but will
// result in an error.
usSearchAttributes &= SMB_FILE_ATTRIBUTE_HIDDEN | SMB_FILE_ATTRIBUTE_SYSTEM | SMB_FILE_ATTRIBUTE_DIRECTORY;
ntStatus = SrvFinderCreateSearchSpace(
pDeleteState->pTree->hFile,
pDeleteState->pTree->pShareInfo,
pDeleteState->pSession->pIoSecurityContext,
pDeleteState->pSession->hFinderRepository,
pDeleteState->pwszFilesystemPath,
pDeleteState->pwszSearchPattern2,
usSearchAttributes,
0,
0, // ulSearchStorageType
SMB_FIND_FILE_BOTH_DIRECTORY_INFO,
pDeleteState->bUseLongFilenames,
FILE_LIST_DIRECTORY,
&pDeleteState->hSearchSpace,
&pDeleteState->usSearchId);
BAIL_ON_NT_STATUS(ntStatus);
}
pDeleteState->stage = SRV_DELETE_STAGE_SMB_V1_DELETE_FILES;
// intentional fall through
case SRV_DELETE_STAGE_SMB_V1_DELETE_FILES:
if (pDeleteState->hSearchSpace)
{
ntStatus = SrvDeleteFiles(pExecContext);
}
else
{
ntStatus = SrvDeleteSingleFile(pExecContext);
}
BAIL_ON_NT_STATUS(ntStatus);
pDeleteState->stage = SRV_DELETE_STAGE_SMB_V1_BUILD_RESPONSE;
// intentional fall through
case SRV_DELETE_STAGE_SMB_V1_BUILD_RESPONSE:
ntStatus = SrvBuildDeleteResponse(pExecContext);
BAIL_ON_NT_STATUS(ntStatus);
pDeleteState->stage = SRV_DELETE_STAGE_SMB_V1_DONE;
// intentional fall through
case SRV_DELETE_STAGE_SMB_V1_DONE:
break;
}
cleanup:
if (pDeleteState)
{
LWIO_UNLOCK_MUTEX(bInLock, &pDeleteState->mutex);
SrvReleaseDeleteState(pDeleteState);
}
return ntStatus;
error:
switch (ntStatus)
{
case STATUS_PENDING:
// TODO: Add an indicator to the file object to trigger a
// cleanup if the connection gets closed and all the
// files involved have to be closed
break;
default:
if (pDeleteState)
{
SrvReleaseDeleteStateAsync(pDeleteState);
}
break;
}
goto cleanup;
}
