internal static Transaction2FindNext2Response GetSubcommandResponse(SMBHeader header, Transaction2FindNext2Request subcommand, FileSystemShare share, StateObject state)
{
Transaction2FindNext2Response response = new Transaction2FindNext2Response();
if (!state.OpenSearches.ContainsKey(subcommand.SID))
{
header.Status = NTStatus.STATUS_INVALID_HANDLE;
return(null);
}
bool returnResumeKeys = (subcommand.Flags & FindFlags.SMB_FIND_RETURN_RESUME_KEYS) > 0;
List <FileSystemEntry> entries = state.OpenSearches[subcommand.SID];
for (int index = 0; index < entries.Count; index++)
{
FindInformationEntry infoEntry = InfoHelper.FromFileSystemEntry(entries[index], subcommand.InformationLevel, header.UnicodeFlag, returnResumeKeys);
response.FindInfoList.Add(infoEntry);
if (response.FindInfoList.GetLength(header.UnicodeFlag) > state.GetMaxDataCount(header.PID))
{
response.FindInfoList.RemoveAt(response.FindInfoList.Count - 1);
break;
}
}
int returnCount = response.FindInfoList.Count;
entries.RemoveRange(0, returnCount);
state.OpenSearches[subcommand.SID] = entries;
response.SearchCount = (ushort)returnCount;
response.EndOfSearch = (returnCount == entries.Count) && (entries.Count <= subcommand.SearchCount);
return(response);
}
internal static Transaction2FindFirst2Response GetSubcommandResponse(SMBHeader header, Transaction2FindFirst2Request subcommand, FileSystemShare share, StateObject state)
{
IFileSystem fileSystem = share.FileSystem;
Transaction2FindFirst2Response response = new Transaction2FindFirst2Response();
string path = subcommand.FileName;
// '\Directory' - Get the directory info
// '\Directory\*' - List the directory files
// '\Directory\s*' - List the directory files starting with s (cmd.exe will use this syntax when entering 's' and hitting tab for autocomplete)
// '\Directory\<.inf' (Update driver will use this syntax)
// '\Directory\exefile"*' (cmd.exe will use this syntax when entering an exe without its extension, explorer will use this opening a directory from the run menu)
bool isDirectoryEnumeration = false;
string searchPattern = String.Empty;
if (path.Contains("*") || path.Contains("<"))
{
isDirectoryEnumeration = true;
int separatorIndex = path.LastIndexOf('\\');
searchPattern = path.Substring(separatorIndex + 1);
path = path.Substring(0, separatorIndex + 1);
}
bool exactNameWithoutExtension = searchPattern.Contains("\"");
FileSystemEntry entry = fileSystem.GetEntry(path);
if (entry == null)
{
header.Status = NTStatus.STATUS_NO_SUCH_FILE;
return(null);
}
List <FileSystemEntry> entries;
if (isDirectoryEnumeration)
{
try
{
entries = fileSystem.ListEntriesInDirectory(path);
}
catch (UnauthorizedAccessException)
{
header.Status = NTStatus.STATUS_ACCESS_DENIED;
return(null);
}
if (searchPattern != String.Empty)
{
entries = GetFiltered(entries, searchPattern);
}
if (!exactNameWithoutExtension)
{
if (IncludeParentDirectoryInResults)
{
entries.Insert(0, fileSystem.GetEntry(FileSystem.GetParentDirectory(path)));
entries[0].Name = "..";
}
if (IncludeCurrentDirectoryInResults)
{
entries.Insert(0, fileSystem.GetEntry(path));
entries[0].Name = ".";
}
}
// If no matching entries are found, the server SHOULD fail the request with STATUS_NO_SUCH_FILE.
if (entries.Count == 0)
{
header.Status = NTStatus.STATUS_NO_SUCH_FILE;
return(null);
}
}
else
{
entries = new List <FileSystemEntry>();
entries.Add(entry);
}
bool returnResumeKeys = (subcommand.Flags & FindFlags.SMB_FIND_RETURN_RESUME_KEYS) > 0;
int entriesToReturn = Math.Min(subcommand.SearchCount, entries.Count);
// We ignore SearchAttributes
for (int index = 0; index < entriesToReturn; index++)
{
FindInformationEntry infoEntry = InfoHelper.FromFileSystemEntry(entries[index], subcommand.InformationLevel, header.UnicodeFlag, returnResumeKeys);
response.FindInfoList.Add(infoEntry);
if (response.FindInfoList.GetLength(header.UnicodeFlag) > state.GetMaxDataCount(header.PID))
{
response.FindInfoList.RemoveAt(response.FindInfoList.Count - 1);
break;
}
}
int returnCount = response.FindInfoList.Count;
response.EndOfSearch = (returnCount == entries.Count) && (entries.Count <= subcommand.SearchCount);
response.SID = state.AllocateSearchHandle();
entries.RemoveRange(0, returnCount);
state.OpenSearches.Add(response.SID, entries);
return(response);
}
