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NTFileSystemAdapter: Do not handle unexpected IFileSystem exceptions

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This commit is contained in:
Tal Aloni 2018-12-11 11:32:25 +02:00
parent 6cab13c1c9
commit 86afb5af33
4 changed files with 173 additions and 58 deletions
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15
SMBLibrary/NTFileStore/Adapter/NTFileSystemAdapter.Query.cs
View file

@ -24,10 +24,17 @@ namespace SMBLibrary
}
catch (Exception ex)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "GetFileInformation on '{0}' failed. {1}", path, status);
result = null;
return status;
if (ex is IOException || ex is UnauthorizedAccessException)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "GetFileInformation on '{0}' failed. {1}", path, status);
result = null;
return status;
}
else
{
throw;
}
}
switch (informationClass)

15
SMBLibrary/NTFileStore/Adapter/NTFileSystemAdapter.QueryDirectory.cs
View file

@ -6,7 +6,7 @@
*/
using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using Utilities;
namespace SMBLibrary
@ -66,9 +66,16 @@ namespace SMBLibrary
}
catch (Exception ex)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "QueryDirectory: Error querying '{0}'. {1}.", path, status);
return status;
if (ex is IOException || ex is UnauthorizedAccessException)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "QueryDirectory: Error querying '{0}'. {1}.", path, status);
return status;
}
else
{
throw;
}
}
entries = new List<FileSystemEntry>();
entries.Add(entry);

78
SMBLibrary/NTFileStore/Adapter/NTFileSystemAdapter.Set.cs
View file

@ -28,9 +28,16 @@ namespace SMBLibrary
}
catch (Exception ex)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "SetFileInformation: Failed to set file attributes on '{0}'. {1}.", fileHandle.Path, status);
return status;
if (ex is IOException || ex is UnauthorizedAccessException)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "SetFileInformation: Failed to set file attributes on '{0}'. {1}.", fileHandle.Path, status);
return status;
}
else
{
throw;
}
}
try
@ -39,9 +46,16 @@ namespace SMBLibrary
}
catch (Exception ex)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "SetFileInformation: Failed to set file dates on '{0}'. {1}.", fileHandle.Path, status);
return status;
if (ex is IOException || ex is UnauthorizedAccessException)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "SetFileInformation: Failed to set file dates on '{0}'. {1}.", fileHandle.Path, status);
return status;
}
else
{
throw;
}
}
return NTStatus.STATUS_SUCCESS;
}
@ -71,9 +85,16 @@ namespace SMBLibrary
}
catch (Exception ex)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "SetFileInformation: Cannot rename '{0}' to '{1}'. {2}.", fileHandle.Path, newFileName, status);
return status;
if (ex is IOException || ex is UnauthorizedAccessException)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "SetFileInformation: Cannot rename '{0}' to '{1}'. {2}.", fileHandle.Path, newFileName, status);
return status;
}
else
{
throw;
}
}
fileHandle.Path = newFileName;
return NTStatus.STATUS_SUCCESS;
@ -95,9 +116,16 @@ namespace SMBLibrary
}
catch (Exception ex)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Information, "SetFileInformation: Error deleting '{0}'. {1}.", fileHandle.Path, status);
return status;
if (ex is IOException || ex is UnauthorizedAccessException)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Information, "SetFileInformation: Error deleting '{0}'. {1}.", fileHandle.Path, status);
return status;
}
else
{
throw;
}
}
}
return NTStatus.STATUS_SUCCESS;
@ -111,9 +139,16 @@ namespace SMBLibrary
}
catch (Exception ex)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "SetFileInformation: Cannot set allocation for '{0}'. {1}.", fileHandle.Path, status);
return status;
if (ex is IOException || ex is UnauthorizedAccessException)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "SetFileInformation: Cannot set allocation for '{0}'. {1}.", fileHandle.Path, status);
return status;
}
else
{
throw;
}
}
return NTStatus.STATUS_SUCCESS;
}
@ -126,9 +161,16 @@ namespace SMBLibrary
}
catch (Exception ex)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "SetFileInformation: Cannot set end of file for '{0}'. {1}.", fileHandle.Path, status);
return status;
if (ex is IOException || ex is UnauthorizedAccessException)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "SetFileInformation: Cannot set end of file for '{0}'. {1}.", fileHandle.Path, status);
return status;
}
else
{
throw;
}
}
return NTStatus.STATUS_SUCCESS;
}

123
SMBLibrary/NTFileStore/Adapter/NTFileSystemAdapter.cs
View file

@ -63,9 +63,16 @@ namespace SMBLibrary
}
catch (Exception ex)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "CreateFile: Error retrieving '{0}'. {1}.", path, status);
return status;
if (ex is IOException || ex is UnauthorizedAccessException)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "CreateFile: Error retrieving '{0}'. {1}.", path, status);
return status;
}
else
{
throw;
}
}
if (createDisposition == CreateDisposition.FILE_OPEN)
@ -116,9 +123,16 @@ namespace SMBLibrary
}
catch (Exception ex)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "CreateFile: Error creating '{0}'. {1}.", path, status);
return status;
if (ex is IOException || ex is UnauthorizedAccessException)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "CreateFile: Error creating '{0}'. {1}.", path, status);
return status;
}
else
{
throw;
}
}
fileStatus = FileStatus.FILE_CREATED;
}
@ -154,9 +168,16 @@ namespace SMBLibrary
}
catch (Exception ex)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "CreateFile: Error creating '{0}'. {1}.", path, status);
return status;
if (ex is IOException || ex is UnauthorizedAccessException)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "CreateFile: Error creating '{0}'. {1}.", path, status);
return status;
}
else
{
throw;
}
}
fileStatus = FileStatus.FILE_CREATED;
}
@ -193,9 +214,16 @@ namespace SMBLibrary
}
catch (Exception ex)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "CreateFile: Error truncating '{0}'. {1}.", path, status);
return status;
if (ex is IOException || ex is UnauthorizedAccessException)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "CreateFile: Error truncating '{0}'. {1}.", path, status);
return status;
}
else
{
throw;
}
}
fileStatus = FileStatus.FILE_OVERWRITTEN;
}
@ -208,9 +236,16 @@ namespace SMBLibrary
}
catch (Exception ex)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "CreateFile: Error deleting '{0}'. {1}.", path, status);
return status;
if (ex is IOException || ex is UnauthorizedAccessException)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "CreateFile: Error deleting '{0}'. {1}.", path, status);
return status;
}
else
{
throw;
}
}
try
@ -228,9 +263,16 @@ namespace SMBLibrary
}
catch (Exception ex)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "CreateFile: Error creating '{0}'. {1}.", path, status);
return status;
if (ex is IOException || ex is UnauthorizedAccessException)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "CreateFile: Error creating '{0}'. {1}.", path, status);
return status;
}
else
{
throw;
}
}
fileStatus = FileStatus.FILE_SUPERSEDED;
}
@ -282,9 +324,16 @@ namespace SMBLibrary
}
catch (Exception ex)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "OpenFile: Cannot open '{0}', Access={1}, Share={2}. NTStatus: {3}.", path, fileAccess, fileShareString, status);
return status;
if (ex is IOException || ex is UnauthorizedAccessException)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "OpenFile: Cannot open '{0}', Access={1}, Share={2}. NTStatus: {3}.", path, fileAccess, fileShareString, status);
return status;
}
else
{
throw;
}
}
Log(Severity.Information, "OpenFileStream: Opened '{0}', Access={1}, Share={2}, FileOptions={3}", path, fileAccess, fileShareString, fileOptionsString);
@ -338,9 +387,16 @@ namespace SMBLibrary
}
catch (Exception ex)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "ReadFile: Cannot read '{0}'. {1}.", path, status);
return status;
if (ex is IOException || ex is UnauthorizedAccessException)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "ReadFile: Cannot read '{0}'. {1}.", path, status);
return status;
}
else
{
throw;
}
}
if (bytesRead < maxCount)
@ -370,9 +426,16 @@ namespace SMBLibrary
}
catch (Exception ex)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "WriteFile: Cannot write '{0}'. {1}.", path, status);
return status;
if (ex is IOException || ex is UnauthorizedAccessException)
{
NTStatus status = ToNTStatus(ex);
Log(Severity.Verbose, "WriteFile: Cannot write '{0}'. {1}.", path, status);
return status;
}
else
{
throw;
}
}
numberOfBytesWritten = data.Length;
return NTStatus.STATUS_SUCCESS;
@ -444,11 +507,7 @@ namespace SMBLibrary
/// <param name="exception">IFileSystem exception</param>
private static NTStatus ToNTStatus(Exception exception)
{
if (exception is ArgumentException)
{
return NTStatus.STATUS_OBJECT_PATH_SYNTAX_BAD;
}
else if (exception is DirectoryNotFoundException)
if (exception is DirectoryNotFoundException)
{
return NTStatus.STATUS_OBJECT_PATH_NOT_FOUND;
}