Examples with TunnelId net.i2p.data.TunnelId used on opensource projects

Example 26 with TunnelId

use of net.i2p.data.TunnelId in project i2p.i2p by i2p.

the class DatabaseLookupMessage method readMessage.

public void readMessage(byte[] data, int offset, int dataSize, int type) throws I2NPMessageException {
    if (type != MESSAGE_TYPE)
        throw new I2NPMessageException("Message type is incorrect for this message");
    int curIndex = offset;
    // byte keyData[] = new byte[Hash.HASH_LENGTH];
    // System.arraycopy(data, curIndex, keyData, 0, Hash.HASH_LENGTH);
    _key = Hash.create(data, curIndex);
    curIndex += Hash.HASH_LENGTH;
    // _key = new Hash(keyData);
    // byte fromData[] = new byte[Hash.HASH_LENGTH];
    // System.arraycopy(data, curIndex, fromData, 0, Hash.HASH_LENGTH);
    _fromHash = Hash.create(data, curIndex);
    curIndex += Hash.HASH_LENGTH;
    // _fromHash = new Hash(fromData);
    // as of 0.9.6, ignore other 7 bits of the flag byte
    // TODO store the whole flag byte
    boolean tunnelSpecified = (data[curIndex] & FLAG_TUNNEL) != 0;
    boolean replyKeySpecified = (data[curIndex] & FLAG_ENCRYPT) != 0;
    switch(data[curIndex] & FLAG_TYPE_MASK) {
        case FLAG_TYPE_LS:
            _type = Type.LS;
            break;
        case FLAG_TYPE_RI:
            _type = Type.RI;
            break;
        case FLAG_TYPE_EXPL:
            _type = Type.EXPL;
            break;
        case FLAG_TYPE_ANY:
        default:
            _type = Type.ANY;
            break;
    }
    curIndex++;
    if (tunnelSpecified) {
        _replyTunnel = new TunnelId(DataHelper.fromLong(data, curIndex, 4));
        curIndex += 4;
    }
    int numPeers = (int) DataHelper.fromLong(data, curIndex, 2);
    curIndex += 2;
    if ((numPeers < 0) || (numPeers > MAX_NUM_PEERS))
        throw new I2NPMessageException("Invalid number of peers - " + numPeers);
    List<Hash> peers = numPeers > 0 ? new ArrayList<Hash>(numPeers) : null;
    for (int i = 0; i < numPeers; i++) {
        // byte peer[] = new byte[Hash.HASH_LENGTH];
        // System.arraycopy(data, curIndex, peer, 0, Hash.HASH_LENGTH);
        Hash p = Hash.create(data, curIndex);
        curIndex += Hash.HASH_LENGTH;
        peers.add(p);
    }
    _dontIncludePeers = peers;
    if (replyKeySpecified) {
        byte[] rk = new byte[SessionKey.KEYSIZE_BYTES];
        System.arraycopy(data, curIndex, rk, 0, SessionKey.KEYSIZE_BYTES);
        _replyKey = new SessionKey(rk);
        curIndex += SessionKey.KEYSIZE_BYTES;
        // number of tags, assume always 1 for now
        curIndex++;
        byte[] rt = new byte[SessionTag.BYTE_LENGTH];
        System.arraycopy(data, curIndex, rt, 0, SessionTag.BYTE_LENGTH);
        _replyTag = new SessionTag(rt);
    }
}

Example 27 with TunnelId

use of net.i2p.data.TunnelId in project i2p.i2p by i2p.

the class RequestLeaseSetMessage method doWriteMessage.

@Override
protected byte[] doWriteMessage() throws I2CPMessageException, IOException {
    if (_sessionId == null)
        throw new I2CPMessageException("Unable to write out the message as there is not enough data");
    ByteArrayOutputStream os = new ByteArrayOutputStream(256);
    try {
        _sessionId.writeBytes(os);
        DataHelper.writeLong(os, 1, _endpoints.size());
        for (int i = 0; i < _endpoints.size(); i++) {
            Hash router = getRouter(i);
            router.writeBytes(os);
            TunnelId tunnel = getTunnelId(i);
            tunnel.writeBytes(os);
        }
        DataHelper.writeDate(os, _end);
    } catch (DataFormatException dfe) {
        throw new I2CPMessageException("Error writing out the message data", dfe);
    }
    return os.toByteArray();
}

Example 28 with TunnelId

use of net.i2p.data.TunnelId in project i2p.i2p by i2p.

the class SearchJob method sendLeaseSearch.

/**
 * we're (probably) searching for a LeaseSet, so to be (overly) cautious, we're sending
 * the request out through a tunnel w/ reply back through another tunnel.
 */
protected void sendLeaseSearch(RouterInfo router) {
    Hash to = router.getIdentity().getHash();
    TunnelInfo inTunnel = getContext().tunnelManager().selectInboundExploratoryTunnel(to);
    if (inTunnel == null) {
        _log.warn("No tunnels to get search replies through!");
        getContext().jobQueue().addJob(new FailedJob(getContext(), router));
        return;
    }
    TunnelId inTunnelId = inTunnel.getReceiveTunnelId(0);
    // this will fail if we've banlisted our inbound gateway, but the gw may not necessarily
    // be banlisted by whomever needs to contact them, so we don't need to check this
    // RouterInfo inGateway = getContext().netDb().lookupRouterInfoLocally(inTunnel.getPeer(0));
    // if (inGateway == null) {
    // _log.error("We can't find the gateway to our inbound tunnel?!");
    // getContext().jobQueue().addJob(new FailedJob(getContext(), router));
    // return;
    // }
    int timeout = getPerPeerTimeoutMs(to);
    long expiration = getContext().clock().now() + timeout;
    I2NPMessage msg = buildMessage(inTunnelId, inTunnel.getPeer(0), expiration, router);
    if (msg == null) {
        getContext().jobQueue().addJob(new FailedJob(getContext(), router));
        return;
    }
    TunnelInfo outTunnel = getContext().tunnelManager().selectOutboundExploratoryTunnel(to);
    if (outTunnel == null) {
        _log.warn("No tunnels to send search out through! Impossible?");
        getContext().jobQueue().addJob(new FailedJob(getContext(), router));
        return;
    }
    TunnelId outTunnelId = outTunnel.getSendTunnelId(0);
    if (_log.shouldLog(Log.DEBUG))
        _log.debug(getJobId() + ": Sending search to " + to + " for " + getState().getTarget() + " w/ replies through " + inTunnel.getPeer(0) + " via tunnel " + inTunnelId);
    SearchMessageSelector sel = new SearchMessageSelector(getContext(), router, _expiration, _state);
    SearchUpdateReplyFoundJob reply = new SearchUpdateReplyFoundJob(getContext(), router, _state, _facade, this, outTunnel, inTunnel);
    if (FloodfillNetworkDatabaseFacade.isFloodfill(router))
        _floodfillSearchesOutstanding++;
    getContext().messageRegistry().registerPending(sel, reply, new FailedJob(getContext(), router));
    // TODO pass a priority to the dispatcher
    getContext().tunnelDispatcher().dispatchOutbound(msg, outTunnelId, to);
}

Example 29 with TunnelId

use of net.i2p.data.TunnelId in project i2p.i2p by i2p.

the class StoreJob method sendStoreThroughGarlic.

/**
 * This is misnamed, it means sending it out through an exploratory tunnel,
 * with the reply to come back through an exploratory tunnel.
 * There is no garlic encryption added.
 */
private void sendStoreThroughGarlic(DatabaseStoreMessage msg, RouterInfo peer, long expiration) {
    long token = 1 + getContext().random().nextLong(I2NPMessage.MAX_ID_VALUE);
    Hash to = peer.getIdentity().getHash();
    TunnelInfo replyTunnel = getContext().tunnelManager().selectInboundExploratoryTunnel(to);
    if (replyTunnel == null) {
        _log.warn("No reply inbound tunnels available!");
        return;
    }
    TunnelId replyTunnelId = replyTunnel.getReceiveTunnelId(0);
    msg.setReplyToken(token);
    msg.setReplyTunnel(replyTunnelId);
    msg.setReplyGateway(replyTunnel.getPeer(0));
    if (_log.shouldLog(Log.DEBUG))
        _log.debug(getJobId() + ": send store thru expl. tunnel to " + peer.getIdentity().getHash() + "  w/ token expected " + token);
    _state.addPending(to);
    TunnelInfo outTunnel = getContext().tunnelManager().selectOutboundExploratoryTunnel(to);
    if (outTunnel != null) {
        // if (_log.shouldLog(Log.DEBUG))
        // _log.debug(getJobId() + ": Sending tunnel message out " + outTunnelId + " to "
        // + peer.getIdentity().getHash().toBase64());
        // TunnelId targetTunnelId = null; // not needed
        // Job onSend = null; // not wanted
        SendSuccessJob onReply = new SendSuccessJob(getContext(), peer, outTunnel, msg.getMessageSize());
        FailedJob onFail = new FailedJob(getContext(), peer, getContext().clock().now());
        StoreMessageSelector selector = new StoreMessageSelector(getContext(), getJobId(), peer, token, expiration);
        if (_log.shouldLog(Log.DEBUG))
            _log.debug("sending store to " + peer.getIdentity().getHash() + " through " + outTunnel + ": " + msg);
        getContext().messageRegistry().registerPending(selector, onReply, onFail);
        getContext().tunnelDispatcher().dispatchOutbound(msg, outTunnel.getSendTunnelId(0), null, to);
    } else {
        if (_log.shouldLog(Log.WARN))
            _log.warn("No outbound tunnels to send a dbStore out!");
        fail();
    }
}

Example 30 with TunnelId

use of net.i2p.data.TunnelId in project i2p.i2p by i2p.

the class BuildMessageTestStandalone method configOutbound.

private TunnelCreatorConfig configOutbound(I2PAppContext ctx) {
    _peers = new Hash[4];
    _pubKeys = new PublicKey[_peers.length];
    _privKeys = new PrivateKey[_peers.length];
    for (int i = 0; i < _peers.length; i++) {
        byte[] buf = new byte[Hash.HASH_LENGTH];
        // consistent for repeatability
        Arrays.fill(buf, (byte) i);
        Hash h = new Hash(buf);
        _peers[i] = h;
        Object[] kp = ctx.keyGenerator().generatePKIKeypair();
        _pubKeys[i] = (PublicKey) kp[0];
        _privKeys[i] = (PrivateKey) kp[1];
    }
    TunnelCreatorConfig cfg = new TunnelCreatorConfig(null, _peers.length, false);
    long now = ctx.clock().now();
    // peers[] is ordered endpoint first, but cfg.getPeer() is ordered gateway first
    for (int i = 0; i < _peers.length; i++) {
        cfg.setPeer(i, _peers[i]);
        HopConfig hop = cfg.getConfig(i);
        hop.setExpiration(now + 10 * 60 * 1000);
        hop.setIVKey(ctx.keyGenerator().generateSessionKey());
        hop.setLayerKey(ctx.keyGenerator().generateSessionKey());
        hop.setReplyKey(ctx.keyGenerator().generateSessionKey());
        byte[] iv = new byte[BuildRequestRecord.IV_SIZE];
        // consistent for repeatability
        Arrays.fill(iv, (byte) i);
        hop.setReplyIV(iv);
        hop.setReceiveTunnelId(new TunnelId(i + 1));
    }
    return cfg;
}