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- package de.tudarmstadt.informatik.hostage.logging.formatter.protocol;
- import de.tudarmstadt.informatik.hostage.commons.HelperUtils;
- /**
- * Telnet log view formatter.
- *
- * @author Wulf Pfeiffer
- */
- public class TELNET extends ProtocolFormatter {
- @Override
- public String format(String packet) {
- byte[] bytes = HelperUtils.hexStringToBytes(packet);
- String options = "Options:\n" + checkForOptions(bytes) + "\n";
- String content = "Content: " + HelperUtils.byteToStr(bytes);
- return options + content;
- }
- /**
- * Checks a byte for its command value.
- *
- * @param b
- * byte that is checked.
- * @return name of the command.
- */
- private String checkCommand(byte b) {
- switch (b) {
- case 0x00:
- return "Binary Transmission\n";
- case 0x01:
- return "Echo\n";
- case 0x02:
- return "Reconnection\n";
- case 0x03:
- return "Suppress Go Ahead\n";
- case 0x04:
- return "Approx Message Size Negotiation\n";
- case 0x05:
- return "Status\n";
- case 0x06:
- return "Timing Mark\n";
- case 0x07:
- return "Remote Controlled Trans and Echo\n";
- case 0x08:
- return "Output Line Width\n";
- case 0x09:
- return "Output Page Size\n";
- case 0x0a:
- return "Output Carriage-Return Disposition\n";
- case 0x0b:
- return "Output Horizontal Tab Stops\n";
- case 0x0c:
- return "Output Horizontal Tab Disposition\n";
- case 0x0d:
- return "Output Formfeed Disposition\n";
- case 0x0e:
- return "Output Vertical Tabstops\n";
- case 0x0f:
- return "Output Vertical Tab Disposition\n";
- case 0x10:
- return "Output Linefeed Disposition\n";
- case 0x11:
- return "Extended ASCII\n";
- case 0x12:
- return "Logout\n";
- case 0x13:
- return "Byte Macro\n";
- case 0x14:
- return "Data Entry Terminal\n";
- case 0x15:
- return "SUPDUP\n";
- case 0x16:
- return "SUPDUP Output\n";
- case 0x17:
- return "Send Location\n";
- case 0x18:
- return "Terminal Type\n";
- case 0x19:
- return "End of Record\n";
- case 0x1a:
- return "TACACS User Identification\n";
- case 0x1b:
- return "Output Marking\n";
- case 0x1c:
- return "Terminal Location Number\n";
- case 0x1d:
- return "Telnet 3270 Regime\n";
- case 0x1e:
- return "X.3 PAD\n";
- case 0x1f:
- return "Negotiate About Window Size\n";
- case 0x20:
- return "Terminal Speed\n";
- case 0x21:
- return "Remote Flow Control\n";
- case 0x22:
- return "Linemode\n";
- case 0x23:
- return "X Display Location\n";
- case (byte) 0xff:
- return "Extended-Options-List\n";
- default:
- return "unknown option\n";
- }
- }
- /**
- * Checks a packet for option commands and returns their names as Strings.
- *
- * @param bytes
- * that are checked.
- * @return names of the option commands as String.
- */
- private String checkForOptions(byte[] bytes) {
- StringBuffer options = new StringBuffer();
- for (int i = 0; i < bytes.length; i++) {
- if (bytes[i] == (byte) 0xff && i + 2 < bytes.length) {
- options.append(checkMode(bytes[i + 1]));
- // option name
- options.append(checkCommand(bytes[i + 2]));
- }
- }
- return options.toString();
- }
- /**
- * Checks a byte for its mode value.
- *
- * @param b
- * byte that is checked.
- * @return name of the mode.
- */
- private String checkMode(byte b) {
- switch (b) {
- case (byte) 0xfb:
- return " WILL ";
- case (byte) 0xfc:
- return " WON'T ";
- case (byte) 0xfd:
- return " DO ";
- case (byte) 0xfe:
- return " DON'T ";
- default:
- return " unkown command ";
- }
- }
- }
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