Ejemplo n.º 1
0
NTSTATUS
PvfsAllocateCreateContext(
    OUT PPVFS_PENDING_CREATE *ppCreate,
    IN  PPVFS_IRP_CONTEXT pIrpContext
    )
{
    NTSTATUS ntError = STATUS_UNSUCCESSFUL;
    PPVFS_PENDING_CREATE pCreateCtx = NULL;
    IRP_ARGS_CREATE Args = pIrpContext->pIrp->Args.Create;
    PIO_CREATE_SECURITY_CONTEXT pSecCtx = Args.SecurityContext;

    ntError = PvfsAllocateMemory(
                  (PVOID*)&pCreateCtx,
                  sizeof(PVFS_PENDING_CREATE));
    BAIL_ON_NT_STATUS(ntError);

    ntError = PvfsCanonicalPathName(
                  &pCreateCtx->pszOriginalFilename,
                  Args.FileName);
    BAIL_ON_NT_STATUS(ntError);

    ntError = PvfsAllocateCCB(&pCreateCtx->pCcb);
    BAIL_ON_NT_STATUS(ntError);

    ntError = PvfsAcquireAccessToken(pCreateCtx->pCcb, pSecCtx);
    BAIL_ON_NT_STATUS(ntError);

    pCreateCtx->pIrpContext = PvfsReferenceIrpContext(pIrpContext);

    *ppCreate = pCreateCtx;
    pCreateCtx = NULL;


cleanup:
    return ntError;

error:
    PvfsFreeCreateContext((PVOID*)&pCreateCtx);

    goto cleanup;
}
Ejemplo n.º 2
0
static
NTSTATUS
PvfsCreateDirOpen(
    PPVFS_IRP_CONTEXT pIrpContext
    )
{
    NTSTATUS ntError = STATUS_UNSUCCESSFUL;
    IRP_ARGS_CREATE Args = pIrpContext->pIrp->Args.Create;
    PPVFS_PENDING_CREATE pCreateCtx = NULL;
    PVFS_STAT Stat = {0};

    ntError = PvfsAllocateCreateContext(&pCreateCtx, pIrpContext);
    BAIL_ON_NT_STATUS(ntError);

    if (IsSetFlag(
            pCreateCtx->OriginalFileName->NameOptions,
            PVFS_FILE_NAME_OPTION_DEFINED_STREAM_TYPE))
    {
        // Disallow named streams here (shouldn't happen) and "::$DATA"
        ntError = STATUS_NOT_A_DIRECTORY;
        BAIL_ON_NT_STATUS(ntError);
    }

    ntError = PvfsLookupPath2(
                  &pCreateCtx->ResolvedFileName,
                  &Stat,
                  pCreateCtx->OriginalFileName,
                  IsSetFlag(Args.FileName.IoNameOptions, IO_NAME_OPTION_CASE_SENSITIVE));
    BAIL_ON_NT_STATUS(ntError);

    if (!S_ISDIR(Stat.s_mode))
    {
        ntError = STATUS_NOT_A_DIRECTORY;
        BAIL_ON_NT_STATUS(ntError);
    }

    ntError = PvfsAccessCheckFile(
                  pCreateCtx->pCcb->pUserToken,
                  pCreateCtx->ResolvedFileName,
                  Args.DesiredAccess,
                  &pCreateCtx->GrantedAccess);
    BAIL_ON_NT_STATUS(ntError);

    ntError = PvfsCheckDosAttributes(
                  Args,
                  pCreateCtx->bFileExisted ? pCreateCtx->ResolvedFileName : NULL,
                  pCreateCtx->GrantedAccess);
    BAIL_ON_NT_STATUS(ntError);

    ntError = PvfsCheckShareMode(
                  pCreateCtx->ResolvedFileName,
                  Args.ShareAccess,
                  pCreateCtx->GrantedAccess,
                  &pCreateCtx->pScb);
    BAIL_ON_NT_STATUS(ntError);

    ntError = PvfsCreateFileCheckPendingDelete(pCreateCtx->pScb);
    BAIL_ON_NT_STATUS(ntError);

    ntError = PvfsCheckQuotaFile(&Args, pCreateCtx->pCcb);
    BAIL_ON_NT_STATUS(ntError);

    pCreateCtx->bFileExisted = TRUE;

    ntError = PvfsAddCCBToSCB(pCreateCtx->pScb, pCreateCtx->pCcb);
    BAIL_ON_NT_STATUS(ntError);

    ntError = PvfsCreateDirDoSysOpen(pCreateCtx);
    BAIL_ON_NT_STATUS(ntError);

cleanup:
    PvfsFreeCreateContext(OUT_PPVOID(&pCreateCtx));

    return ntError;

error:
    if (ntError != STATUS_PENDING)
    {
        pIrpContext->pIrp->IoStatusBlock.CreateResult =
            PvfsSetCreateResult(
                Args.CreateDisposition,
                pCreateCtx ? pCreateCtx->bFileExisted : FALSE,
                ntError);
    }

    if (pCreateCtx &&
        pCreateCtx->pCcb &&
        pCreateCtx->pCcb->pDirContext &&
        pCreateCtx->pCcb->pDirContext->pDir)
    {
        PvfsSysCloseDir(pCreateCtx->pCcb->pDirContext->pDir);
    }

    goto cleanup;
}
Ejemplo n.º 3
0
static
NTSTATUS
PvfsCreateDirOpenIf(
    PPVFS_IRP_CONTEXT pIrpContext
    )
{
    NTSTATUS ntError = STATUS_UNSUCCESSFUL;
    IRP_ARGS_CREATE Args = pIrpContext->pIrp->Args.Create;
    PPVFS_PENDING_CREATE pCreateCtx = NULL;
    PVFS_STAT statPath = { 0 };
    PVFS_STAT statFile = { 0 };
    PPVFS_FILE_NAME directoryName = NULL;
    PPVFS_FILE_NAME resolvedDirName = NULL;
    PPVFS_FILE_NAME relativeFileName = NULL;

    ntError = PvfsAllocateCreateContext(&pCreateCtx, pIrpContext);
    BAIL_ON_NT_STATUS(ntError);

    if (IsSetFlag(
            pCreateCtx->OriginalFileName->NameOptions,
            PVFS_FILE_NAME_OPTION_DEFINED_STREAM_TYPE))
    {
        // Disallow named streams here (shouldn't happen) and "::$DATA"
        ntError = STATUS_NOT_A_DIRECTORY;
        BAIL_ON_NT_STATUS(ntError);
    }

    ntError = PvfsSplitFileNamePath(
                  &directoryName,
                  &relativeFileName,
                  pCreateCtx->OriginalFileName);
    BAIL_ON_NT_STATUS(ntError);

    ntError = PvfsLookupPath2(
                  &resolvedDirName,
                  &statPath,
                  directoryName,
                  IsSetFlag(Args.FileName.IoNameOptions, IO_NAME_OPTION_CASE_SENSITIVE));
    BAIL_ON_NT_STATUS(ntError);

    /* Check for file existence */

    ntError = PvfsLookupFile2(
                  &pCreateCtx->ResolvedFileName,
                  &statFile,
                  directoryName,
                  relativeFileName,
                  IsSetFlag(Args.FileName.IoNameOptions, IO_NAME_OPTION_CASE_SENSITIVE));
    pCreateCtx->bFileExisted = NT_SUCCESS(ntError) ? TRUE : FALSE;

    if (!pCreateCtx->bFileExisted)
    {
        ntError = PvfsAppendFileName(
                      &pCreateCtx->ResolvedFileName,
                      resolvedDirName,
                      relativeFileName);
        BAIL_ON_NT_STATUS(ntError);

        ntError = PvfsAccessCheckFile(
                      pCreateCtx->pCcb->pUserToken,
                      resolvedDirName,
                      FILE_ADD_SUBDIRECTORY,
                      &pCreateCtx->GrantedAccess);
        BAIL_ON_NT_STATUS(ntError);

        pCreateCtx->GrantedAccess = PvfsGetGrantedAccessForNewObject(
                                            Args.DesiredAccess);
    }
    else
    {
        if (!S_ISDIR(statFile.s_mode))
        {
            ntError = STATUS_NOT_A_DIRECTORY;
            BAIL_ON_NT_STATUS(ntError);
        }

        ntError = PvfsAccessCheckFile(
                      pCreateCtx->pCcb->pUserToken,
                      pCreateCtx->ResolvedFileName,
                      Args.DesiredAccess,
                      &pCreateCtx->GrantedAccess);
        BAIL_ON_NT_STATUS(ntError);
    }

    ntError = PvfsCheckDosAttributes(
                  Args,
                  pCreateCtx->bFileExisted ? pCreateCtx->ResolvedFileName : NULL,
                  pCreateCtx->GrantedAccess);
    BAIL_ON_NT_STATUS(ntError);

    ntError = PvfsCheckShareMode(
                  pCreateCtx->ResolvedFileName,
                  Args.ShareAccess,
                  pCreateCtx->GrantedAccess,
                  &pCreateCtx->pScb);
    BAIL_ON_NT_STATUS(ntError);

    ntError = PvfsCreateFileCheckPendingDelete(pCreateCtx->pScb);
    BAIL_ON_NT_STATUS(ntError);

    if (!pCreateCtx->bFileExisted)
    {
        pCreateCtx->SetPropertyFlags = PVFS_SET_PROP_SECURITY|
                                       PVFS_SET_PROP_ATTRIB;
    }

    ntError = PvfsAddCCBToSCB(pCreateCtx->pScb, pCreateCtx->pCcb);
    BAIL_ON_NT_STATUS(ntError);

    ntError = PvfsCreateDirDoSysOpen(pCreateCtx);
    BAIL_ON_NT_STATUS(ntError);

cleanup:
    PvfsFreeCreateContext(OUT_PPVOID(&pCreateCtx));

    if (directoryName)
    {
        PvfsFreeFileName(directoryName);
    }
    if (relativeFileName)
    {
        PvfsFreeFileName(relativeFileName);
    }
    if (resolvedDirName)
    {
        PvfsFreeFileName(resolvedDirName);
    }

    return ntError;

error:
    if (ntError != STATUS_PENDING)
    {
        pIrpContext->pIrp->IoStatusBlock.CreateResult =
            PvfsSetCreateResult(
                Args.CreateDisposition,
                pCreateCtx ? pCreateCtx->bFileExisted : FALSE,
                ntError);
    }

    if (pCreateCtx &&
        pCreateCtx->pCcb &&
        pCreateCtx->pCcb->pDirContext &&
        pCreateCtx->pCcb->pDirContext->pDir)
    {
        PvfsSysCloseDir(pCreateCtx->pCcb->pDirContext->pDir);
    }

    goto cleanup;
}
Ejemplo n.º 4
0
static
NTSTATUS
PvfsCreateDirCreate(
    PPVFS_IRP_CONTEXT pIrpContext
    )
{
    NTSTATUS ntError = STATUS_UNSUCCESSFUL;
    IRP_ARGS_CREATE Args = pIrpContext->pIrp->Args.Create;
    PPVFS_PENDING_CREATE pCreateCtx = NULL;
    PVFS_STAT statPath = { 0 };
    PPVFS_FILE_NAME directoryName = NULL;
    PPVFS_FILE_NAME relativeFileName = NULL;
    PPVFS_FILE_NAME resolvedDirName = NULL;

    ntError = PvfsAllocateCreateContext(&pCreateCtx, pIrpContext);
    BAIL_ON_NT_STATUS(ntError);

    if (IsSetFlag(
            pCreateCtx->OriginalFileName->NameOptions,
            PVFS_FILE_NAME_OPTION_DEFINED_STREAM_TYPE))
    {
        // Disallow named streams here (shouldn't happen) and "::$DATA"
        ntError = STATUS_NOT_A_DIRECTORY;
        BAIL_ON_NT_STATUS(ntError);
    }

    /* We expect this call to fail with OBJECT_NAME_NOT_FOUND */

    ntError = PvfsLookupPath2(
                  &pCreateCtx->ResolvedFileName,
                  &statPath,
                  pCreateCtx->OriginalFileName,
                  IsSetFlag(Args.FileName.IoNameOptions, IO_NAME_OPTION_CASE_SENSITIVE));
    switch (ntError)
    {
    case STATUS_SUCCESS:
        ntError = STATUS_OBJECT_NAME_COLLISION;
        break;
    case STATUS_OBJECT_NAME_NOT_FOUND:
        ntError = STATUS_SUCCESS;
        break;
    default:
        /* do nothing */
        break;
    }
    BAIL_ON_NT_STATUS(ntError);

    ntError = PvfsSplitFileNamePath(
                  &directoryName,
                  &relativeFileName,
                  pCreateCtx->OriginalFileName);
    BAIL_ON_NT_STATUS(ntError);

    ntError = PvfsLookupPath2(
                  &resolvedDirName,
                  &statPath,
                  directoryName,
                  IsSetFlag(Args.FileName.IoNameOptions, IO_NAME_OPTION_CASE_SENSITIVE));
    if (ntError == STATUS_OBJECT_NAME_NOT_FOUND)
    {
        ntError = STATUS_OBJECT_PATH_NOT_FOUND;
    }

    BAIL_ON_NT_STATUS(ntError);

    ntError = PvfsAppendFileName(
                  &pCreateCtx->ResolvedFileName,
                  resolvedDirName,
                  relativeFileName);
    BAIL_ON_NT_STATUS(ntError);

    /* check parent here */

    ntError = PvfsAccessCheckFile(
                  pCreateCtx->pCcb->pUserToken,
                  resolvedDirName,
                  FILE_ADD_SUBDIRECTORY,
                  &pCreateCtx->GrantedAccess);
    BAIL_ON_NT_STATUS(ntError);

    pCreateCtx->GrantedAccess = PvfsGetGrantedAccessForNewObject(
                                        Args.DesiredAccess);

    ntError = PvfsCheckDosAttributes(
                  Args,
                  NULL,  /* New directory */
                  pCreateCtx->GrantedAccess);
    BAIL_ON_NT_STATUS(ntError);

    ntError = PvfsCheckShareMode(
                  pCreateCtx->ResolvedFileName,
                  Args.ShareAccess,
                  pCreateCtx->GrantedAccess,
                  &pCreateCtx->pScb);
    BAIL_ON_NT_STATUS(ntError);

    ntError = PvfsCreateFileCheckPendingDelete(pCreateCtx->pScb);
    BAIL_ON_NT_STATUS(ntError);

    pCreateCtx->bFileExisted = FALSE;
    pCreateCtx->SetPropertyFlags = PVFS_SET_PROP_SECURITY|PVFS_SET_PROP_ATTRIB;

    ntError = PvfsAddCCBToSCB(pCreateCtx->pScb, pCreateCtx->pCcb);
    BAIL_ON_NT_STATUS(ntError);

    ntError = PvfsCreateDirDoSysOpen(pCreateCtx);
    BAIL_ON_NT_STATUS(ntError);

cleanup:
    PvfsFreeCreateContext(OUT_PPVOID(&pCreateCtx));

    if (directoryName)
    {
        PvfsFreeFileName(directoryName);
    }
    if (relativeFileName)
    {
        PvfsFreeFileName(relativeFileName);
    }
    if (resolvedDirName)
    {
        PvfsFreeFileName(resolvedDirName);
    }

    return ntError;

error:
    if (ntError != STATUS_PENDING)
    {
        pIrpContext->pIrp->IoStatusBlock.CreateResult =
            PvfsSetCreateResult(
                Args.CreateDisposition,
                pCreateCtx ? pCreateCtx->bFileExisted : FALSE,
                ntError);
    }

    if (pCreateCtx &&
        pCreateCtx->pCcb &&
        pCreateCtx->pCcb->pDirContext &&
        pCreateCtx->pCcb->pDirContext->pDir)
    {
        PvfsSysCloseDir(pCreateCtx->pCcb->pDirContext->pDir);
    }

    goto cleanup;
}