Andrii Shvaika
5 years ago
15 changed files with 326 additions and 108 deletions
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/** |
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* Copyright © 2016-2021 The Thingsboard Authors |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package org.thingsboard.server.transport.lwm2m.secure; |
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import org.eclipse.leshan.core.request.Identity; |
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import org.eclipse.leshan.core.request.UplinkRequest; |
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import org.eclipse.leshan.server.registration.Registration; |
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import org.eclipse.leshan.server.security.Authorizer; |
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public class TbLwM2MAuthorizer implements Authorizer { |
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@Override |
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public Registration isAuthorized(UplinkRequest<?> request, Registration registration, Identity senderIdentity) { |
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return null; |
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} |
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} |
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/** |
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* Copyright © 2016-2021 The Thingsboard Authors |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package org.thingsboard.server.transport.lwm2m.secure; |
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import lombok.RequiredArgsConstructor; |
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import lombok.extern.slf4j.Slf4j; |
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import org.eclipse.californium.elements.util.CertPathUtil; |
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import org.eclipse.californium.scandium.dtls.AlertMessage; |
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import org.eclipse.californium.scandium.dtls.CertificateMessage; |
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import org.eclipse.californium.scandium.dtls.CertificateType; |
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import org.eclipse.californium.scandium.dtls.CertificateVerificationResult; |
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import org.eclipse.californium.scandium.dtls.ConnectionId; |
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import org.eclipse.californium.scandium.dtls.DTLSSession; |
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import org.eclipse.californium.scandium.dtls.HandshakeException; |
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import org.eclipse.californium.scandium.dtls.HandshakeResultHandler; |
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import org.eclipse.californium.scandium.dtls.x509.NewAdvancedCertificateVerifier; |
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import org.eclipse.californium.scandium.dtls.x509.StaticCertificateVerifier; |
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import org.eclipse.californium.scandium.util.ServerNames; |
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import org.springframework.beans.factory.annotation.Value; |
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import org.springframework.stereotype.Component; |
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import org.springframework.util.StringUtils; |
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import org.thingsboard.server.common.data.DeviceProfile; |
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import org.thingsboard.server.common.msg.EncryptionUtil; |
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import org.thingsboard.server.common.transport.TransportService; |
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import org.thingsboard.server.common.transport.TransportServiceCallback; |
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import org.thingsboard.server.common.transport.auth.ValidateDeviceCredentialsResponse; |
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import org.thingsboard.server.common.transport.util.SslUtil; |
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import org.thingsboard.server.gen.transport.TransportProtos; |
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import org.thingsboard.server.transport.lwm2m.config.LwM2MTransportServerConfig; |
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import javax.annotation.PostConstruct; |
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import javax.security.auth.x500.X500Principal; |
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import java.security.PublicKey; |
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import java.security.cert.CertPath; |
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import java.security.cert.CertificateEncodingException; |
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import java.security.cert.CertificateExpiredException; |
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import java.security.cert.CertificateNotYetValidException; |
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import java.security.cert.X509Certificate; |
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import java.util.Arrays; |
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import java.util.List; |
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import java.util.concurrent.CountDownLatch; |
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import java.util.concurrent.TimeUnit; |
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@Slf4j |
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@Component |
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@RequiredArgsConstructor |
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public class TbLwM2MDtlsCertificateVerifier implements NewAdvancedCertificateVerifier { |
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private final TransportService transportService; |
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private final TbLwM2MDtlsSessionStorage sessionStorage; |
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private final LwM2MTransportServerConfig config; |
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@SuppressWarnings("deprecation") |
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private StaticCertificateVerifier staticCertificateVerifier; |
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@Value("${transport.lwm2m.server.security.skip_validity_check_for_client_cert:false}") |
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private boolean skipValidityCheckForClientCert; |
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@Override |
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public List<CertificateType> getSupportedCertificateType() { |
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return Arrays.asList(CertificateType.X_509, CertificateType.RAW_PUBLIC_KEY); |
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} |
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@PostConstruct |
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public void init() { |
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try { |
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/* by default trust all */ |
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X509Certificate[] trustedCertificates = new X509Certificate[0]; |
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if (config.getKeyStoreValue() != null) { |
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X509Certificate rootCAX509Cert = (X509Certificate) config.getKeyStoreValue().getCertificate(config.getRootCertificateAlias()); |
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if (rootCAX509Cert != null) { |
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trustedCertificates = new X509Certificate[1]; |
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trustedCertificates[0] = rootCAX509Cert; |
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} |
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} |
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staticCertificateVerifier = new StaticCertificateVerifier(trustedCertificates); |
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} catch (Exception e) { |
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log.info("Failed to initialize the "); |
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} |
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} |
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@Override |
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public CertificateVerificationResult verifyCertificate(ConnectionId cid, ServerNames serverName, Boolean clientUsage, boolean truncateCertificatePath, CertificateMessage message, DTLSSession session) { |
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CertPath certChain = message.getCertificateChain(); |
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if (certChain == null) { |
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//We trust all RPK on this layer, and use TbLwM2MAuthorizer
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PublicKey publicKey = message.getPublicKey(); |
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return new CertificateVerificationResult(cid, publicKey, null); |
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} else { |
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try { |
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String credentialsBody = null; |
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CertPath certpath = message.getCertificateChain(); |
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X509Certificate[] chain = certpath.getCertificates().toArray(new X509Certificate[0]); |
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for (X509Certificate cert : chain) { |
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try { |
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if (!skipValidityCheckForClientCert) { |
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cert.checkValidity(); |
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} |
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String strCert = SslUtil.getCertificateString(cert); |
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String sha3Hash = EncryptionUtil.getSha3Hash(strCert); |
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final ValidateDeviceCredentialsResponse[] deviceCredentialsResponse = new ValidateDeviceCredentialsResponse[1]; |
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CountDownLatch latch = new CountDownLatch(1); |
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transportService.process(TransportProtos.ValidateDeviceLwM2MCredentialsRequestMsg.newBuilder().setCredentialsId(sha3Hash).build(), |
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new TransportServiceCallback<>() { |
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@Override |
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public void onSuccess(ValidateDeviceCredentialsResponse msg) { |
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if (!StringUtils.isEmpty(msg.getCredentials())) { |
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deviceCredentialsResponse[0] = msg; |
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} |
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latch.countDown(); |
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} |
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@Override |
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public void onError(Throwable e) { |
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log.error(e.getMessage(), e); |
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latch.countDown(); |
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} |
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}); |
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latch.await(10, TimeUnit.SECONDS); |
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ValidateDeviceCredentialsResponse msg = deviceCredentialsResponse[0]; |
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if (msg != null && strCert.equals(msg.getCredentials())) { |
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credentialsBody = msg.getCredentials(); |
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DeviceProfile deviceProfile = msg.getDeviceProfile(); |
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if (msg.hasDeviceInfo() && deviceProfile != null) { |
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String endpoint = sha3Hash; //TODO: extract endpoint from credentials body and push to storage
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sessionStorage.put(endpoint, msg); |
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} |
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break; |
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} |
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} catch (InterruptedException | |
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CertificateEncodingException | |
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CertificateExpiredException | |
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CertificateNotYetValidException e) { |
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log.error(e.getMessage(), e); |
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} |
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} |
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if (credentialsBody == null) { |
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if (staticCertificateVerifier != null) { |
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staticCertificateVerifier.verifyCertificate(message, session); |
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} else { |
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AlertMessage alert = new AlertMessage(AlertMessage.AlertLevel.FATAL, AlertMessage.AlertDescription.INTERNAL_ERROR, |
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session.getPeer()); |
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throw new HandshakeException("x509 verification not enabled!", alert); |
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} |
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} |
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return new CertificateVerificationResult(cid, certpath, null); |
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} catch (HandshakeException e) { |
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log.trace("Certificate validation failed!", e); |
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return new CertificateVerificationResult(cid, e, null); |
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} |
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} |
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} |
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@Override |
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public List<X500Principal> getAcceptedIssuers() { |
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return CertPathUtil.toSubjects(null); |
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} |
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@Override |
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public void setResultHandler(HandshakeResultHandler resultHandler) { |
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} |
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} |
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@ -0,0 +1,26 @@ |
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/** |
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* Copyright © 2016-2021 The Thingsboard Authors |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package org.thingsboard.server.transport.lwm2m.secure; |
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import org.thingsboard.server.common.transport.auth.ValidateDeviceCredentialsResponse; |
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public interface TbLwM2MDtlsSessionStorage { |
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void put(String endpoint, ValidateDeviceCredentialsResponse msg); |
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ValidateDeviceCredentialsResponse get(String endpoint); |
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} |
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