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tst: ntptfs: workaround for NtQueryDirectoryFile on WOW64

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Bill Zissimopoulos 2022-01-26 00:12:13 +00:00
parent 83e59f33fc
commit 1ad13aebdb
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GPG Key ID: 3D4F95D52C7B3EA3
1 changed files with 34 additions and 1 deletions
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35
tst/ntptfs/ptfs.c
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@ -160,6 +160,20 @@ static NTSTATUS CreateEx(FSP_FILE_SYSTEM *FileSystem,
FILE_NON_DIRECTORY_FILE | FILE_NON_DIRECTORY_FILE |
FILE_NO_EA_KNOWLEDGE; FILE_NO_EA_KNOWLEDGE;
/* WORKAROUND:
*
* WOW64 appears to have a bug in some versions of the OS, where NtQueryDirectoryFile may fail
* if called on a directory that has been opened without FILE_SYNCHRONOUS_IO_NONALERT.
*
* So make sure to always open directories in a synchronous manner.
*/
if (IsDirectory)
{
MaximumAccess |= SYNCHRONIZE;
//GrantedAccess |= SYNCHRONIZE;
CreateOptions |= FILE_SYNCHRONOUS_IO_NONALERT;
}
Result = LfsCreateFile( Result = LfsCreateFile(
&Handle, &Handle,
MaximumAccess | MaximumAccess |
@ -257,6 +271,20 @@ static NTSTATUS Open(FSP_FILE_SYSTEM *FileSystem,
FILE_NON_DIRECTORY_FILE | FILE_NON_DIRECTORY_FILE |
FILE_NO_EA_KNOWLEDGE; FILE_NO_EA_KNOWLEDGE;
/* WORKAROUND:
*
* WOW64 appears to have a bug in some versions of the OS, where NtQueryDirectoryFile may fail
* if called on a directory that has been opened without FILE_SYNCHRONOUS_IO_NONALERT.
*
* So make sure to always open directories in a synchronous manner.
*/
if (IsDirectory)
{
MaximumAccess |= SYNCHRONIZE;
//GrantedAccess |= SYNCHRONIZE;
CreateOptions |= FILE_SYNCHRONOUS_IO_NONALERT;
}
Result = LfsOpenFile( Result = LfsOpenFile(
&Handle, &Handle,
MaximumAccess | MaximumAccess |
@ -787,6 +815,10 @@ static NTSTATUS BufferedReadDirectory(FSP_FILE_SYSTEM *FileSystem,
; ;
QueryInfo = (FILE_ID_BOTH_DIR_INFORMATION *)((PUINT8)QueryInfo + QueryNext)) QueryInfo = (FILE_ID_BOTH_DIR_INFORMATION *)((PUINT8)QueryInfo + QueryNext))
{ {
if (QueryBuffer + BytesTransferred <
(PUINT8)QueryInfo + FIELD_OFFSET(FILE_ID_BOTH_DIR_INFORMATION, FileName))
break;
QueryNext = QueryInfo->NextEntryOffset; QueryNext = QueryInfo->NextEntryOffset;
CopyQueryInfoToDirInfo(QueryInfo, &DirInfo.V); CopyQueryInfoToDirInfo(QueryInfo, &DirInfo.V);
@ -993,7 +1025,8 @@ static NTSTATUS GetStreamInfo(FSP_FILE_SYSTEM *FileSystem,
; ;
QueryInfo = (FILE_STREAM_INFORMATION *)((PUINT8)QueryInfo + QueryNext)) QueryInfo = (FILE_STREAM_INFORMATION *)((PUINT8)QueryInfo + QueryNext))
{ {
if (Iosb.Information <= (ULONG)((PUINT8)QueryInfo - QueryBuffer)) if (QueryBuffer + Iosb.Information <
(PUINT8)QueryInfo + FIELD_OFFSET(FILE_STREAM_INFORMATION, StreamName))
break; break;
QueryNext = QueryInfo->NextEntryOffset; QueryNext = QueryInfo->NextEntryOffset;