| public Read ( byte buffer, int offset, int count ) : int | ||
| buffer | byte | |
| offset | int | |
| count | int | |
| return | int | |
public byte[] GenerateData()
{
using (HexFilterStream src = new HexFilterStream (new TextReaderStream (new StringReader (_data))))
{
byte[] data = new byte[src.Length];
src.Read (data, 0, data.Length);
_logger.LogData (data);
return data;
}
}
public override void Execute(string[] commandline)
{
if (commandline.Length < 2)
_console.Out.WriteLine ("Error: [local_alias] not specified");
else if (commandline.Length < 3)
_console.Out.WriteLine ("Error: [pcr_subcommand] not specified");
ClientContext ctx = _console.GetValue<ClientContext> ("client_context", null);
if (ctx == null)
{
_console.Out.WriteLine ("No active connection was found");
return;
}
string localAlias = commandline[1];
string pcrCommand = commandline[2];
IDictionary<string, TPMSession> tpmSessions = _console.GetValue<IDictionary<string, TPMSession>> ("tpm_sessions", null);
if (tpmSessions == null || tpmSessions.ContainsKey (localAlias) == false)
{
_console.Out.WriteLine ("Error: Specified local alias was not found");
return;
}
if (pcrCommand == "report")
{
uint pcrCount = tpmSessions[localAlias].CapabilityClient.GetPCRCount();
for(uint i = 0; i<pcrCount; i++)
_console.Out.WriteLine("#{0}: {1}", i, ByteHelper.ByteArrayToHexString(tpmSessions[localAlias].IntegrityClient.PCRValue(i)));
}
else if(pcrCommand == "extend")
{
if(commandline.Length < 4)
{
_console.Out.WriteLine("Error: 'extend' requires some arguments");
return;
}
IDictionary<string, string> arguments =_console.SplitArguments(commandline[3], 0);
if(arguments.ContainsKey("pcr") == false)
{
_console.Out.WriteLine("Error: 'extend' requires parameter 'pcr' to be specified");
return;
}
uint pcr = 0;
if(uint.TryParse(arguments["pcr"], out pcr) == false)
{
_console.Out.WriteLine("Error: 'pcr' could not be parsed, is it a valid pcr specified?");
return;
}
if(arguments.ContainsKey("data_input") == false)
{
_console.Out.WriteLine("Error: 'extend' requires parameter 'data_input' to be specified");
return;
}
TPMSessionSealCommand.DataInputMode dataInput =
(TPMSessionSealCommand.DataInputMode)Enum.Parse(typeof(TPMSessionSealCommand.DataInputMode), arguments["data_input"], true);
if(dataInput != TPMSessionSealCommand.DataInputMode.Embedded &&
dataInput != TPMSessionSealCommand.DataInputMode.File)
{
_console.Out.WriteLine("Error: 'data_input' has an invalid value");
return;
}
byte[] digest;
if(dataInput == TPMSessionSealCommand.DataInputMode.File &&
arguments.ContainsKey("file") == false)
{
_console.Out.WriteLine("Error: file-data_input require 'file' argument to be specified");
return;
}
else if(dataInput == TPMSessionSealCommand.DataInputMode.File)
{
FileInfo myFile = new FileInfo(arguments["file"]);
using(FileStream src = myFile.OpenRead())
{
digest = new HashProvider().Hash(
new HashStreamDataProvider(src, null, null, false));
}
}
else if(dataInput == TPMSessionSealCommand.DataInputMode.Embedded)
{
using(Stream src = new HexFilterStream(new TextReaderStream( new StringReader(commandline[4]))))
{
digest = new byte[20];
if(src.Length != 20)
{
throw new ArgumentException("Error: The embedded digest must be 20 bytes long");
}
src.Read(digest, 0, 20);
}
}
else
throw new ArgumentException(String.Format("data input mode '{0}' is not supported", dataInput));
_console.Out.WriteLine("Doing extension with digest: '{0}'", ByteHelper.ByteArrayToHexString(digest));
byte[] newDigest = tpmSessions[localAlias].IntegrityClient.Extend(pcr, digest);
_console.Out.WriteLine("Extension successful, new pcr value: {0}", ByteHelper.ByteArrayToHexString(newDigest));
}
else if(pcrCommand == "quote")
{
if(commandline.Length < 4)
{
_console.Out.WriteLine("Error: 'quote' requires some arguments");
return;
}
IDictionary<string, string> arguments =_console.SplitArguments(commandline[3], 0);
if(arguments.ContainsKey("pcr") == false)
{
_console.Out.WriteLine("Error: 'quote' requires parameter 'pcr' to be specified");
return;
}
if(arguments.ContainsKey("name") == false)
{
_console.Out.WriteLine("Error: no key name was specified");
return;
}
ClientKeyHandle keyHandle = tpmSessions[localAlias].KeyClient.GetKeyHandleByFriendlyName(arguments["name"]);
TPMPCRSelection pcrSelection = tpmSessions[localAlias].CreateEmptyPCRSelection();
foreach(string pcr in arguments["pcr"].Split('|'))
{
int pcrValue = int.Parse(pcr);
pcrSelection.PcrSelection.SetBit(pcrValue - 1, true);
}
TPMPCRComposite quoted = keyHandle.SimpleQuote(pcrSelection);
IList<int> selectedPCRs = quoted.PCRSelection.SelectedPCRs;
for (int i = 0; i < selectedPCRs.Count; i++)
{
_console.Out.WriteLine("#{0}: {1}", selectedPCRs[i], ByteHelper.ByteArrayToHexString(quoted.PCRValues[i]));
}
}
else
_console.Out.WriteLine ("Error, unknown pcr_subcommand '{0}'", commandline[1]);
}