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NTFileSystemHelper.CreateFile: Corrected FILE_SUPERSEDE implementation

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This commit is contained in:
Tal Aloni 2017-02-09 15:28:57 +02:00
parent a9f92df47b
commit 4be937e7c1
1 changed files with 42 additions and 8 deletions
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44
SMBLibrary/Server/Helpers/NTFileSystemHelper.cs
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@ -30,7 +30,8 @@ namespace SMBLibrary.Server
if (forceDirectory & (createDisposition != CreateDisposition.FILE_CREATE &&
createDisposition != CreateDisposition.FILE_OPEN &&
createDisposition != CreateDisposition.FILE_OPEN_IF))
createDisposition != CreateDisposition.FILE_OPEN_IF &&
createDisposition != CreateDisposition.FILE_SUPERSEDE))
{
entry = null;
return NTStatus.STATUS_INVALID_PARAMETER;
@ -146,16 +147,15 @@ namespace SMBLibrary.Server
}
}
else
{
if (createDisposition == CreateDisposition.FILE_OVERWRITE ||
createDisposition == CreateDisposition.FILE_OVERWRITE_IF ||
createDisposition == CreateDisposition.FILE_SUPERSEDE)
{
if (!requestedWriteAccess)
{
return NTStatus.STATUS_ACCESS_DENIED;
}
if (createDisposition == CreateDisposition.FILE_OVERWRITE ||
createDisposition == CreateDisposition.FILE_OVERWRITE_IF)
{
// Truncate the file
try
{
@ -169,6 +169,40 @@ namespace SMBLibrary.Server
return status;
}
}
else if (createDisposition == CreateDisposition.FILE_SUPERSEDE)
{
// Delete the old file
try
{
fileSystem.Delete(path);
}
catch(Exception ex)
{
NTStatus status = ToNTStatus(ex);
state.LogToServer(Severity.Debug, "CreateFile: Error deleting '{0}'. {1}.", path, status);
return status;
}
try
{
if (forceDirectory)
{
state.LogToServer(Severity.Information, "CreateFile: Creating directory '{0}'", path);
entry = fileSystem.CreateDirectory(path);
}
else
{
state.LogToServer(Severity.Information, "CreateFile: Creating file '{0}'", path);
entry = fileSystem.CreateFile(path);
}
}
catch (Exception ex)
{
NTStatus status = ToNTStatus(ex);
state.LogToServer(Severity.Debug, "CreateFile: Error creating '{0}'. {1}.", path, status);
return status;
}
}
}
}
else