Public/winfsp
1
0
Fork 0
mirror of https://github.com/winfsp/winfsp.git synced 2025-04-22 08:23:05 -05:00
Code Issues Packages Projects Releases Wiki Activity

dll: FspAccessCheckEx: fix #190

Browse Source
This commit is contained in:
Bill Zissimopoulos 2018-10-19 21:41:52 -07:00
parent 0de00e872f
commit a292cd4d73
No known key found for this signature in database
GPG Key ID: 3D4F95D52C7B3EA3
1 changed files with 12 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
src/dll/security.c
View File

@ -341,26 +341,25 @@ FSP_API NTSTATUS FspAccessCheckEx(FSP_FILE_SYSTEM *FileSystem,
if (Request->Req.Create.UserMode)
{
if (0 != (FileAttributes & FILE_ATTRIBUTE_READONLY))
{
if (DesiredAccess &
(FILE_WRITE_DATA | FILE_APPEND_DATA | FILE_ADD_SUBDIRECTORY | FILE_DELETE_CHILD))
if (FILE_ATTRIBUTE_READONLY == (FileAttributes & (FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_DIRECTORY)) &&
(DesiredAccess & (FILE_WRITE_DATA | FILE_APPEND_DATA | FILE_ADD_SUBDIRECTORY | FILE_DELETE_CHILD)))
{
Result = STATUS_ACCESS_DENIED;
goto exit;
}
if (Request->Req.Create.CreateOptions & FILE_DELETE_ON_CLOSE)
if (FILE_ATTRIBUTE_READONLY == (FileAttributes & FILE_ATTRIBUTE_READONLY) &&
Request->Req.Create.CreateOptions & FILE_DELETE_ON_CLOSE)
{
Result = STATUS_CANNOT_DELETE;
goto exit;
}
}
if (0 == SecurityDescriptorSize)
*PGrantedAccess = (MAXIMUM_ALLOWED & DesiredAccess) ?
FspFileGenericMapping.GenericAll : DesiredAccess;
if (0 != (FileAttributes & FILE_ATTRIBUTE_READONLY) &&
if (FILE_ATTRIBUTE_READONLY == (FileAttributes & (FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_DIRECTORY)) &&
0 != (MAXIMUM_ALLOWED & DesiredAccess))
*PGrantedAccess &= ~(FILE_WRITE_DATA | FILE_APPEND_DATA |
FILE_ADD_SUBDIRECTORY | FILE_DELETE_CHILD);