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checking parameters on open

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based on MS-FSA document there are a few checks we should do
on open that we didn't before.
This commit is contained in:
Olga Kornievskaia 2012-03-20 16:18:57 -04:00 • committed by unknown
parent dd611ff0cd
commit 24781aa472
1 changed files with 35 additions and 8 deletions
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43
sys/nfs41_driver.c
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@ -3282,6 +3282,27 @@ BOOLEAN isFilenameTooLong(
return FALSE;
}
BOOLEAN areOpenParamsValid(NT_CREATE_PARAMETERS *params)
{
/* from ms-fsa page 52 */
if ((params->CreateOptions & FILE_DELETE_ON_CLOSE) &&
!(params->DesiredAccess & DELETE))
return FALSE;
if ((params->CreateOptions & FILE_DIRECTORY_FILE) &&
(params->Disposition == FILE_SUPERSEDE ||
params->Disposition == FILE_OVERWRITE ||
params->Disposition == FILE_OVERWRITE_IF))
return FALSE;
if ((params->CreateOptions & FILE_NO_INTERMEDIATE_BUFFERING) &&
(params->DesiredAccess & FILE_APPEND_DATA))
return FALSE;
/* from ms-fsa 3.1.5.1.1 page 56 */
if ((params->CreateOptions & FILE_DIRECTORY_FILE) &&
(params->FileAttributes & FILE_ATTRIBUTE_TEMPORARY))
return FALSE;
return TRUE;
}
NTSTATUS map_open_errors(
DWORD status,
USHORT len)
@ -3386,10 +3407,10 @@ NTSTATUS nfs41_Create(
goto out;
}
if (pVNetRootContext->read_only &&
((params.DesiredAccess & FILE_WRITE_DATA) ||
(params.DesiredAccess & FILE_APPEND_DATA))) {
DbgP("Read-only mount\n");
if ((pVNetRootContext->read_only ||
((params.FileAttributes & FILE_ATTRIBUTE_READONLY) &&
params.Disposition == FILE_OPEN)) &&
(params.DesiredAccess & (FILE_WRITE_DATA | FILE_APPEND_DATA))) {
status = STATUS_ACCESS_DENIED;
goto out;
}
@ -3410,12 +3431,18 @@ NTSTATUS nfs41_Create(
goto out;
}
if (params.Disposition == FILE_OPEN &&
(params.FileAttributes & FILE_ATTRIBUTE_READONLY) &&
(params.DesiredAccess & (FILE_WRITE_DATA | FILE_APPEND_DATA))) {
status = STATUS_ACCESS_DENIED;
if (!areOpenParamsValid(&params)) {
status = STATUS_INVALID_PARAMETER;
goto out;
}
/* from ms-fsa 3.1.5.1.1 page 56 */
if ((params.CreateOptions & FILE_DELETE_ON_CLOSE) &&
(params.FileAttributes & FILE_ATTRIBUTE_READONLY)) {
status = STATUS_CANNOT_DELETE;
goto out;
}
#if defined(STORE_MOUNT_SEC_CONTEXT) && defined (USE_MOUNT_SEC_CONTEXT)
status = nfs41_UpcallCreate(NFS41_OPEN, &pVNetRootContext->mount_sec_ctx,
#else