std::string KeyExchangeSession::getSessionKey(const dtn::data::EID &peer, unsigned int uniqueId) { // generate session key std::stringstream sstm; sstm << uniqueId << "." << peer.getString(); return sstm.str(); }
void NativeSession::removeRegistration(const dtn::data::EID &eid) throw (NativeSessionException) { // error checking if (eid == dtn::data::EID()) { throw NativeSessionException("given endpoint is not acceptable"); } else { _registration.unsubscribe(eid); } IBRCOMMON_LOGGER_DEBUG_TAG(NativeSession::TAG, 20) << "Registration " << eid.getString() << " removed" << IBRCOMMON_LOGGER_ENDL; }
/** * Transfer one bundle to another node. * @param destination The EID of the other node. * @param id The ID of the bundle to transfer. This bundle must be stored in the storage. */ void RoutingExtension::transferTo(const dtn::data::EID &destination, const dtn::data::MetaBundle &meta) { // acquire the transfer of this bundle, could throw already in transit or no resource left exception { // lock the list of neighbors ibrcommon::MutexLock l((**this).getNeighborDB()); // get the neighbor entry for the next hop NeighborDatabase::NeighborEntry &entry = (**this).getNeighborDB().get(destination, true); // acquire the transfer, could throw already in transit or no resource left exception entry.acquireTransfer(meta); } try { // create a new bundle transfer object dtn::net::BundleTransfer transfer(destination, meta); // transfer the bundle to the next hop dtn::core::BundleCore::getInstance().getConnectionManager().queue(transfer); IBRCOMMON_LOGGER_DEBUG_TAG(RoutingExtension::TAG, 20) << "bundle " << meta.toString() << " queued for " << destination.getString() << IBRCOMMON_LOGGER_ENDL; } catch (const dtn::core::P2PDialupException&) { // lock the list of neighbors ibrcommon::MutexLock l((**this).getNeighborDB()); // get the neighbor entry for the next hop NeighborDatabase::NeighborEntry &entry = (**this).getNeighborDB().get(destination); // release the transfer entry.releaseTransfer(meta); // and abort the query throw NeighborDatabase::NeighborNotAvailableException(); } catch (const ibrcommon::Exception &e) { // ignore any other error } }
void NodeHandshakeExtension::HandshakeEndpoint::query(const dtn::data::EID &origin) { { ibrcommon::MutexLock l(_blacklist_lock); // only query once each 60 seconds if (_blacklist[origin] > dtn::utils::Clock::getUnixTimestamp()) return; _blacklist[origin] = dtn::utils::Clock::getUnixTimestamp() + 60; } // create a new request for the summary vector of the neighbor NodeHandshake request(NodeHandshake::HANDSHAKE_REQUEST); // walk through all extensions to generate a request (*_callback).requestHandshake(origin, request); IBRCOMMON_LOGGER_DEBUG_TAG(NodeHandshakeExtension::TAG, 15) << "handshake query from " << origin.getString() << ": " << request.toString() << IBRCOMMON_LOGGER_ENDL; // create a new bundle dtn::data::Bundle req; // set the source of the bundle req.source = getWorkerURI(); // set the destination of the bundle req.set(dtn::data::PrimaryBlock::DESTINATION_IS_SINGLETON, true); if (origin.isCompressable()) req.destination = origin.add(origin.getDelimiter() + "50"); else req.destination = origin.add(origin.getDelimiter() + "routing"); // limit the lifetime to 60 seconds req.lifetime = 60; // set high priority req.set(dtn::data::PrimaryBlock::PRIORITY_BIT1, false); req.set(dtn::data::PrimaryBlock::PRIORITY_BIT2, true); dtn::data::PayloadBlock &p = req.push_back<PayloadBlock>(); ibrcommon::BLOB::Reference ref = p.getBLOB(); // serialize the request into the payload { ibrcommon::BLOB::iostream ios = ref.iostream(); (*ios) << request; } // add a schl block dtn::data::ScopeControlHopLimitBlock &schl = req.push_front<dtn::data::ScopeControlHopLimitBlock>(); schl.setLimit(1); // add an age block (to prevent expiring due to wrong clocks) req.push_front<dtn::data::AgeBlock>(); // send the bundle transmit(req); }
void NodeHandshakeExtension::HandshakeEndpoint::query(const dtn::data::EID &origin) { { ibrcommon::MutexLock l(_blacklist_lock); // only query once each 60 seconds if (_blacklist[origin] > dtn::utils::Clock::getMonotonicTimestamp()) return; _blacklist[origin] = dtn::utils::Clock::getMonotonicTimestamp() + 60; } // create a new request for the summary vector of the neighbor NodeHandshake request(NodeHandshake::HANDSHAKE_REQUEST); #ifdef IBRDTN_SUPPORT_COMPRESSION // request compressed answer request.addRequest(NodeHandshakeItem::REQUEST_COMPRESSED_ANSWER); #endif // walk through all extensions to generate a request (*_callback).requestHandshake(origin, request); IBRCOMMON_LOGGER_DEBUG_TAG(NodeHandshakeExtension::TAG, 15) << "handshake query from " << origin.getString() << ": " << request.toString() << IBRCOMMON_LOGGER_ENDL; // create a new bundle with a zero timestamp (+age block) dtn::data::Bundle req(true); // set the source of the bundle req.source = getWorkerURI(); // set the destination of the bundle req.set(dtn::data::PrimaryBlock::DESTINATION_IS_SINGLETON, true); req.destination = origin; // set destination application req.destination.setApplication("routing"); // limit the lifetime to 60 seconds req.lifetime = 60; // set high priority req.set(dtn::data::PrimaryBlock::PRIORITY_BIT1, false); req.set(dtn::data::PrimaryBlock::PRIORITY_BIT2, true); dtn::data::PayloadBlock &p = req.push_back<PayloadBlock>(); ibrcommon::BLOB::Reference ref = p.getBLOB(); // serialize the request into the payload { ibrcommon::BLOB::iostream ios = ref.iostream(); (*ios) << request; } // add a schl block dtn::data::ScopeControlHopLimitBlock &schl = req.push_front<dtn::data::ScopeControlHopLimitBlock>(); schl.setLimit(1); // send the bundle transmit(req); }