From: Jeffrey Altman <jaltman@your-file-system.com>
Date: Tue, 22 Nov 2011 21:36:18 +0000 (-0500)
Subject: Windows: _._AFS_IOCTL_._ size is zero
X-Git-Tag: upstream/1.8.0_pre1^2~3019
X-Git-Url: https://git.michaelhowe.org/gitweb/?a=commitdiff_plain;h=030157166795628bbfa81e8b4b7ede35dfead8d0;p=packages%2Fo%2Fopenafs.git

Windows: _._AFS_IOCTL_._ size is zero

When replying to a FileStandardInformation query on the pioctl
special file, the size of the file is 0.  Failure to return 0
can result in an anti-virus program attempting to read the file
via a paging request which will fail.

Change-Id: I83f2f40cca99c04a5fe06546f19bdf96dfbb4951
Reviewed-on: http://gerrit.openafs.org/6109
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
---

diff --git a/src/WINNT/afsrdr/kernel/lib/AFSFileInfo.cpp b/src/WINNT/afsrdr/kernel/lib/AFSFileInfo.cpp
index 3ac9a85db..a4d7df8c0 100644
--- a/src/WINNT/afsrdr/kernel/lib/AFSFileInfo.cpp
+++ b/src/WINNT/afsrdr/kernel/lib/AFSFileInfo.cpp
@@ -3183,8 +3183,8 @@ AFSProcessPIOCtlQueryInfo( IN IRP *Irp,
 
                     pStandard->NumberOfLinks = 1;
                     pStandard->DeletePending = 0;
-                    pStandard->AllocationSize.QuadPart = 4096;
-                    pStandard->EndOfFile.QuadPart = 4096;
+                    pStandard->AllocationSize.QuadPart = 0;
+                    pStandard->EndOfFile.QuadPart = 0;
                     pStandard->Directory = 0;
 
                     *Length -= sizeof( FILE_STANDARD_INFORMATION);