Examples with Log net.i2p.util.Log used on opensource projects

Example 31 with Log

use of net.i2p.util.Log in project i2p.i2p by i2p.

the class UDPPacket method acquire.

/**
 *  @param inbound unused
 */
public static UDPPacket acquire(RouterContext ctx, boolean inbound) {
    UDPPacket rv = null;
    if (CACHE) {
        rv = _packetCache.poll();
        if (rv != null) {
            synchronized (rv) {
                if (!rv._released) {
                    Log log = rv._context.logManager().getLog(UDPPacket.class);
                    log.error("Unreleased cached packet", new Exception());
                    rv = null;
                } else {
                    rv.init(ctx);
                }
            }
        }
    }
    if (rv == null)
        rv = new UDPPacket(ctx);
    return rv;
}

Example 32 with Log

use of net.i2p.util.Log in project i2p.i2p by i2p.

the class UDPPacket method validate.

/**
 * Validate the packet against the MAC specified, returning true if the
 * MAC matches, false otherwise.
 */
public synchronized boolean validate(SessionKey macKey) {
    verifyNotReleased();
    // _beforeValidate = _context.clock().now();
    boolean eq = false;
    Arrays.fill(_validateBuf, (byte) 0);
    // validate by comparing _data[0:15] and
    // HMAC(payload + IV + (payloadLength ^ protocolVersion), macKey)
    int payloadLength = _packet.getLength() - MAC_SIZE - IV_SIZE;
    if (payloadLength > 0) {
        int off = 0;
        System.arraycopy(_data, _packet.getOffset() + MAC_SIZE + IV_SIZE, _validateBuf, off, payloadLength);
        off += payloadLength;
        System.arraycopy(_data, _packet.getOffset() + MAC_SIZE, _validateBuf, off, IV_SIZE);
        off += IV_SIZE;
        DataHelper.toLong(_validateBuf, off, 2, payloadLength);
        off += 2;
        eq = _context.hmac().verify(macKey, _validateBuf, 0, off, _data, _packet.getOffset(), MAC_SIZE);
        if (!eq) {
            // this is relatively frequent, as you can get old keys in PacketHandler.
            Log log = _context.logManager().getLog(UDPPacket.class);
            if (log.shouldLog(Log.INFO)) {
                byte[] calc = new byte[32];
                _context.hmac().calculate(macKey, _validateBuf, 0, off, calc, 0);
                StringBuilder str = new StringBuilder(512);
                str.append("Bad HMAC:\n\t");
                str.append(_packet.getLength()).append(" byte pkt, ");
                str.append(payloadLength).append(" byte payload");
                str.append("\n\tFrom: ").append(getRemoteHost().toString());
                str.append("\n\tIV:   ").append(Base64.encode(_validateBuf, payloadLength, IV_SIZE));
                str.append("\n\tIV2:  ").append(Base64.encode(_data, MAC_SIZE, IV_SIZE));
                str.append("\n\tGiven Len: ").append(DataHelper.fromLong(_validateBuf, payloadLength + IV_SIZE, 2));
                str.append("\n\tCalc HMAC: ").append(Base64.encode(calc, 0, MAC_SIZE));
                str.append("\n\tRead HMAC: ").append(Base64.encode(_data, _packet.getOffset(), MAC_SIZE));
                str.append("\n\tUsing key: ").append(macKey.toBase64());
                if (DataHelper.eq(macKey.getData(), 0, _context.routerHash().getData(), 0, 32))
                    str.append(" (Intro)");
                else
                    str.append(" (Session)");
                str.append("\n\tRaw:       ").append(Base64.encode(_data, _packet.getOffset(), _packet.getLength()));
                log.info(str.toString(), new Exception());
            }
        }
    } else {
        Log log = _context.logManager().getLog(UDPPacket.class);
        if (log.shouldLog(Log.WARN))
            log.warn("Payload length is " + payloadLength + ", too short! From: " + getRemoteHost() + '\n' + net.i2p.util.HexDump.dump(_data, _packet.getOffset(), _packet.getLength()));
    }
    // _afterValidate = _context.clock().now();
    _validateCount++;
    return eq;
}

Example 33 with Log

use of net.i2p.util.Log in project i2p.i2p by i2p.

the class Router method getConfig.

/**
 *  this does not use ctx.getConfigDir(), must provide a full path in filename
 *  Caller must synchronize
 *
 *  @param ctx will be null at startup when called from constructor
 */
private static Properties getConfig(RouterContext ctx, String filename) {
    Log log = null;
    if (ctx != null) {
        log = ctx.logManager().getLog(Router.class);
        if (log.shouldLog(Log.DEBUG))
            log.debug("Config file: " + filename, new Exception("location"));
    }
    Properties props = new Properties();
    try {
        File f = new File(filename);
        if (f.canRead()) {
            DataHelper.loadProps(props, f);
            props.remove(PROP_SHUTDOWN_IN_PROGRESS);
        } else {
            if (log != null)
                log.warn("Configuration file " + filename + " does not exist");
        // normal not to exist at first install
        // else
        // System.err.println("WARNING: Configuration file " + filename + " does not exist");
        }
    } catch (IOException ioe) {
        if (log != null)
            log.error("Error loading the router configuration from " + filename, ioe);
        else
            System.err.println("Error loading the router configuration from " + filename + ": " + ioe);
    }
    return props;
}

Example 34 with Log

use of net.i2p.util.Log in project i2p.i2p by i2p.

the class RouterClock method setOffset.

/**
 * @since 0.7.12
 * @param offsetMs the delta from System.currentTimeMillis() (NOT the delta from now())
 */
private synchronized void setOffset(long offsetMs, boolean force, int stratum) {
    long delta = offsetMs - _offset;
    if (!force) {
        if (!_isSystemClockBad && (offsetMs > MAX_OFFSET || offsetMs < 0 - MAX_OFFSET)) {
            Log log = getLog();
            if (log.shouldLog(Log.WARN))
                log.warn("Maximum offset shift exceeded [" + offsetMs + "], NOT HONORING IT");
            return;
        }
        // only allow substantial modifications before the first 10 minutes
        if (_alreadyChanged && (System.currentTimeMillis() - _startedOn > 10 * 60 * 1000)) {
            if ((delta > MAX_LIVE_OFFSET) || (delta < 0 - MAX_LIVE_OFFSET)) {
                Log log = getLog();
                if (log.shouldLog(Log.WARN))
                    log.warn("The clock has already been updated, ignoring request to change it by " + delta + " to " + offsetMs, new Exception());
                return;
            }
        }
        // let's be perfect
        if (delta == 0) {
            getLog().debug("Not changing offset, delta=0");
            _alreadyChanged = true;
            return;
        }
        // only listen to a worse stratum if it's been a while
        if (_alreadyChanged && stratum > _lastStratum && System.currentTimeMillis() - _lastChanged < MIN_DELAY_FOR_WORSE_STRATUM) {
            Log log = getLog();
            if (log.shouldLog(Log.DEBUG))
                log.debug("Ignoring update from a stratum " + stratum + " clock, we recently had an update from a stratum " + _lastStratum + " clock");
            return;
        }
        // If so configured, check sanity of proposed clock offset
        if (_context.getBooleanPropertyDefaultTrue("router.clockOffsetSanityCheck") && _alreadyChanged) {
            // Try calculating peer clock skew
            long currentPeerClockSkew = ((RouterContext) _context).commSystem().getFramedAveragePeerClockSkew(33);
            // Predict the effect of applying the proposed clock offset
            long predictedPeerClockSkew = currentPeerClockSkew + delta;
            // Fail sanity check if applying the offset would increase peer clock skew
            Log log = getLog();
            if ((Math.abs(predictedPeerClockSkew) > (Math.abs(currentPeerClockSkew) + 5 * 1000)) || (Math.abs(predictedPeerClockSkew) > 20 * 1000)) {
                if (log.shouldWarn())
                    log.warn("Ignoring clock offset " + offsetMs + "ms (current " + _offset + "ms) since it would increase peer clock skew from " + currentPeerClockSkew + "ms to " + predictedPeerClockSkew + "ms. Stratrum: " + stratum);
                return;
            } else {
                if (log.shouldInfo())
                    log.info("Approving clock offset " + offsetMs + "ms (current " + _offset + "ms) since it would decrease peer clock skew from " + currentPeerClockSkew + "ms to " + predictedPeerClockSkew + "ms. Stratrum: " + stratum);
            }
        }
    // check sanity
    }
    // This allows NTP to trump a peer offset after a soft restart
    if (_alreadyChanged && (stratum >= _lastStratum || System.currentTimeMillis() - _startedOn > 60 * 1000)) {
        // Update the target offset, slewing will take care of the rest
        if (delta > 15 * 1000)
            getLog().logAlways(Log.WARN, "Warning - Updating target clock offset to " + offsetMs + "ms from " + _offset + "ms, Stratum " + stratum);
        else if (getLog().shouldLog(Log.INFO))
            getLog().info("Updating target clock offset to " + offsetMs + "ms from " + _offset + "ms, Stratum " + stratum);
        if (!_statCreated) {
            _context.statManager().createRequiredRateStat("clock.skew", "Clock step adjustment (ms)", "Clock", new long[] { 10 * 60 * 1000, 3 * 60 * 60 * 1000, 24 * 60 * 60 * 1000 });
            _statCreated = true;
        }
        _context.statManager().addRateData("clock.skew", delta);
        if (_context.getBooleanProperty(PROP_DISABLE_ADJUSTMENT)) {
            getLog().error("Clock adjustment disabled", new Exception());
        } else {
            _desiredOffset = offsetMs;
        }
    } else {
        Log log = getLog();
        if (log.shouldLog(Log.INFO))
            log.info("Initializing clock offset to " + offsetMs + "ms, Stratum " + stratum);
        _alreadyChanged = true;
        if (_context.getBooleanProperty(PROP_DISABLE_ADJUSTMENT)) {
            log.error("Clock adjustment disabled", new Exception());
        } else {
            _offset = offsetMs;
            _desiredOffset = offsetMs;
            // this is used by the JobQueue
            fireOffsetChanged(delta);
        }
    }
    _lastChanged = System.currentTimeMillis();
    _lastStratum = stratum;
}

Example 35 with Log

use of net.i2p.util.Log in project i2p.i2p by i2p.

the class CryptoChecker method warnUnavailableCrypto.

// these two are US-only and can change?
// private static String JRE7 = "http://www.oracle.com/technetwork/java/javase/documentation/java-se-7-doc-download-435117.html";
// private static String JRE8 = "http://www.oracle.com/technetwork/java/javase/documentation/jdk8-doc-downloads-2133158.html";
/**
 *  @param ctx if null, logs only to System.out (called from main)
 */
public static void warnUnavailableCrypto(RouterContext ctx) {
    if (SystemVersion.isAndroid())
        return;
    boolean unavail = false;
    Log log = null;
    for (SigType t : SigType.values()) {
        if (!t.isAvailable()) {
            if (!unavail) {
                unavail = true;
                if (ctx != null)
                    log = ctx.logManager().getLog(CryptoChecker.class);
            }
            String s = "Crypto " + t + " is not available";
            if (log != null)
                log.logAlways(Log.WARN, s);
            System.out.println("Warning: " + s);
        }
    }
    if (unavail) {
        String s = "Java version: " + System.getProperty("java.version") + " OS: " + System.getProperty("os.name") + ' ' + System.getProperty("os.arch") + ' ' + System.getProperty("os.version");
        if (log != null)
            log.logAlways(Log.WARN, s);
        System.out.println("Warning: " + s);
        if (!SystemVersion.isJava7()) {
            s = "Please consider upgrading to Java 7";
            if (log != null)
                log.logAlways(Log.WARN, s);
            System.out.println(s);
        } else if (SystemVersion.isJava9()) {
            s = "Java 9 support is beta, check for Java updates";
            if (log != null)
                log.logAlways(Log.WARN, s);
            System.out.println("Warning: " + s);
        }
        if (!CryptoCheck.isUnlimited() && !SystemVersion.isJava9()) {
            s = "Please consider installing the Java Cryptography Unlimited Strength Jurisdiction Policy Files from ";
            // if (SystemVersion.isJava8())
            // s  += JRE8;
            // else if (SystemVersion.isJava7())
            // s  += JRE7;
            // else
            s += JRE6;
            if (log != null)
                log.logAlways(Log.WARN, s);
            System.out.println(s);
        }
        s = "This crypto will be required in a future release";
        if (log != null)
            log.logAlways(Log.WARN, s);
        System.out.println("Warning: " + s);
    } else if (ctx == null) {
        // called from main()
        System.out.println("All crypto available");
    }
}