Quelle SSLContext.java Sprache: JAVA

/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.tomcat.jni;

import java.util.Locale;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

public final class SSLContext {

 public static final byte[] DEFAULT_SESSION_ID_CONTEXT =
 new byte[] { 'd', 'e', 'f', 'a', 'u', 'l', 't' };

 /**
 * Create a new SSL context.
 *
 * @param pool The pool to use.
 * @param protocol The SSL protocol to use. It can be any combination of
 * the following:
 * <PRE>
 * {@link SSL#SSL_PROTOCOL_SSLV2}
 * {@link SSL#SSL_PROTOCOL_SSLV3}
 * {@link SSL#SSL_PROTOCOL_TLSV1}
 * {@link SSL#SSL_PROTOCOL_TLSV1_1}
 * {@link SSL#SSL_PROTOCOL_TLSV1_2}
 * {@link SSL#SSL_PROTOCOL_TLSV1_3}
 * {@link SSL#SSL_PROTOCOL_ALL} ( == all TLS versions, no SSL)
 * </PRE>
 * @param mode SSL mode to use
 * <PRE>
 * SSL_MODE_CLIENT
 * SSL_MODE_SERVER
 * SSL_MODE_COMBINED
 * </PRE>
 *
 * @return The Java representation of a pointer to the newly created SSL
 * Context
 *
 * @throws Exception If the SSL Context could not be created
 */
 public static native long make(long pool, int protocol, int mode) throws Exception;

 /**
 * Free the resources used by the Context
 * @param ctx Server or Client context to free.
 * @return APR Status code.
 */
 public static native int free(long ctx);

 /**
 * Set OpenSSL Option.
 * @param ctx Server or Client context to use.
 * @param options See SSL.SSL_OP_* for option flags.
 */
 public static native void setOptions(long ctx, int options);

 /**
 * Get OpenSSL Option.
 * @param ctx Server or Client context to use.
 * @return options See SSL.SSL_OP_* for option flags.
 */
 public static native int getOptions(long ctx);

 /**
 * Clears OpenSSL Options.
 * @param ctx Server or Client context to use.
 * @param options See SSL.SSL_OP_* for option flags.
 */
 public static native void clearOptions(long ctx, int options);

 /**
 * Returns all cipher suites that are enabled for negotiation in an SSL handshake.
 * @param ctx Server or Client context to use.
 * @return ciphers
 */
 public static native String[] getCiphers(long ctx);

 /**
 * Cipher Suite available for negotiation in SSL handshake.
 * 
 * This complex directive uses a colon-separated cipher-spec string consisting
 * of OpenSSL cipher specifications to configure the Cipher Suite the client
 * is permitted to negotiate in the SSL handshake phase. Notice that this
 * directive can be used both in per-server and per-directory context.
 * In per-server context it applies to the standard SSL handshake when a
 * connection is established. In per-directory context it forces an SSL
 * renegotiation with the reconfigured Cipher Suite after the HTTP request
 * was read but before the HTTP response is sent.
 * @param ctx Server or Client context to use.
 * @param ciphers An OpenSSL cipher specification.
 * @return <code>true</code> if the operation was successful
 * @throws Exception An error occurred
 */
 public static native boolean setCipherSuite(long ctx, String ciphers)
 throws Exception;

 /**
 * Set File of concatenated PEM-encoded CA CRLs or
 * directory of PEM-encoded CA Certificates for Client Auth
 * 
 * This directive sets the all-in-one file where you can assemble the
 * Certificate Revocation Lists (CRL) of Certification Authorities (CA)
 * whose clients you deal with. These are used for Client Authentication.
 * Such a file is simply the concatenation of the various PEM-encoded CRL
 * files, in order of preference.
 * 
 * The files in this directory have to be PEM-encoded and are accessed through
 * hash filenames. So usually you can't just place the Certificate files there:
 * you also have to create symbolic links named hash-value.N. And you should
 * always make sure this directory contains the appropriate symbolic links.
 * Use the Makefile which comes with mod_ssl to accomplish this task.
 * @param ctx Server or Client context to use.
 * @param file File of concatenated PEM-encoded CA CRLs for Client Auth.
 * @param path Directory of PEM-encoded CA Certificates for Client Auth.
 * @return <code>true</code> if the operation was successful
 * @throws Exception An error occurred
 */
 public static native boolean setCARevocation(long ctx, String file,
 String path)
 throws Exception;

 /**
 * Set File of PEM-encoded Server CA Certificates
 * 
 * This directive sets the optional all-in-one file where you can assemble the
 * certificates of Certification Authorities (CA) which form the certificate
 * chain of the server certificate. This starts with the issuing CA certificate
 * of of the server certificate and can range up to the root CA certificate.
 * Such a file is simply the concatenation of the various PEM-encoded CA
 * Certificate files, usually in certificate chain order.
 * 
 * But be careful: Providing the certificate chain works only if you are using
 * a single (either RSA or DSA) based server certificate. If you are using a
 * coupled RSA+DSA certificate pair, this will work only if actually both
 * certificates use the same certificate chain. Else the browsers will be
 * confused in this situation.
 * @param ctx Server or Client context to use.
 * @param file File of PEM-encoded Server CA Certificates.
 * @param skipfirst Skip first certificate if chain file is inside
 * certificate file.
 * @return <code>true</code> if the operation was successful
 */
 public static native boolean setCertificateChainFile(long ctx, String file,
 boolean skipfirst);

 /**
 * Set Certificate
 * 
 * Point setCertificateFile at a PEM encoded certificate. If
 * the certificate is encrypted, then you will be prompted for a
 * pass phrase. Note that a kill -HUP will prompt again. A test
 * certificate can be generated with 'make certificate' under
 * built time. Keep in mind that if you've both a RSA and a DSA
 * certificate you can configure both in parallel (to also allow
 * the use of DSA ciphers, etc.)
 * 
 * If the key is not combined with the certificate, use key param
 * to point at the key file. Keep in mind that if
 * you've both a RSA and a DSA private key you can configure
 * both in parallel (to also allow the use of DSA ciphers, etc.)
 * @param ctx Server or Client context to use.
 * @param cert Certificate file.
 * @param key Private Key file to use if not in cert.
 * @param password Certificate password. If null and certificate
 * is encrypted, password prompt will be displayed.
 * @param idx Certificate index SSL_AIDX_RSA or SSL_AIDX_DSA.
 * @return <code>true</code> if the operation was successful
 * @throws Exception An error occurred
 */
 public static native boolean setCertificate(long ctx, String cert,
 String key, String password,
 int idx)
 throws Exception;

 /**
 * Set the size of the internal session cache.
 * http://www.openssl.org/docs/ssl/SSL_CTX_sess_set_cache_size.html
 * @param ctx Server or Client context to use.
 * @param size The cache size
 * @return the value set
 */
 public static native long setSessionCacheSize(long ctx, long size);

 /**
 * Get the size of the internal session cache.
 * http://www.openssl.org/docs/ssl/SSL_CTX_sess_get_cache_size.html
 * @param ctx Server or Client context to use.
 * @return the size
 */
 public static native long getSessionCacheSize(long ctx);

 /**
 * Set the timeout for the internal session cache in seconds.
 * http://www.openssl.org/docs/ssl/SSL_CTX_set_timeout.html
 * @param ctx Server or Client context to use.
 * @param timeoutSeconds Timeout value
 * @return the value set
 */
 public static native long setSessionCacheTimeout(long ctx, long timeoutSeconds);

 /**
 * Get the timeout for the internal session cache in seconds.
 * http://www.openssl.org/docs/ssl/SSL_CTX_set_timeout.html
 * @param ctx Server or Client context to use.
 * @return the timeout
 */
 public static native long getSessionCacheTimeout(long ctx);

 /**
 * Set the mode of the internal session cache and return the previous used mode.
 * @param ctx Server or Client context to use.
 * @param mode The mode to set
 * @return the value set
 */
 public static native long setSessionCacheMode(long ctx, long mode);

 /**
 * Get the mode of the current used internal session cache.
 * @param ctx Server or Client context to use.
 * @return the value set
 */
 public static native long getSessionCacheMode(long ctx);

 /*
 * Session resumption statistics methods.
 * http://www.openssl.org/docs/ssl/SSL_CTX_sess_number.html
 */
 public static native long sessionAccept(long ctx);
 public static native long sessionAcceptGood(long ctx);
 public static native long sessionAcceptRenegotiate(long ctx);
 public static native long sessionCacheFull(long ctx);
 public static native long sessionCbHits(long ctx);
 public static native long sessionConnect(long ctx);
 public static native long sessionConnectGood(long ctx);
 public static native long sessionConnectRenegotiate(long ctx);
 public static native long sessionHits(long ctx);
 public static native long sessionMisses(long ctx);
 public static native long sessionNumber(long ctx);
 public static native long sessionTimeouts(long ctx);

 /**
 * Set TLS session keys. This allows us to share keys across TFEs.
 * @param ctx Server or Client context to use.
 * @param keys Some session keys
 */
 public static native void setSessionTicketKeys(long ctx, byte[] keys);

 /**
 * Set File and Directory of concatenated PEM-encoded CA Certificates
 * for Client Auth
 * 
 * This directive sets the all-in-one file where you can assemble the
 * Certificates of Certification Authorities (CA) whose clients you deal with.
 * These are used for Client Authentication. Such a file is simply the
 * concatenation of the various PEM-encoded Certificate files, in order of
 * preference. This can be used alternatively and/or additionally to
 * path.
 * 
 * The files in this directory have to be PEM-encoded and are accessed through
 * hash filenames. So usually you can't just place the Certificate files there:
 * you also have to create symbolic links named hash-value.N. And you should
 * always make sure this directory contains the appropriate symbolic links.
 * Use the Makefile which comes with mod_ssl to accomplish this task.
 * @param ctx Server or Client context to use.
 * @param file File of concatenated PEM-encoded CA Certificates for
 * Client Auth.
 * @param path Directory of PEM-encoded CA Certificates for Client Auth.
 * @return <code>true</code> if the operation was successful
 * @throws Exception An error occurred
 */
 public static native boolean setCACertificate(long ctx, String file,
 String path)
 throws Exception;

 /**
 * Set Type of Client Certificate verification and Maximum depth of CA Certificates
 * in Client Certificate verification.
 * 
 * This directive sets the Certificate verification level for the Client
 * Authentication. Notice that this directive can be used both in per-server
 * and per-directory context. In per-server context it applies to the client
 * authentication process used in the standard SSL handshake when a connection
 * is established. In per-directory context it forces an SSL renegotiation with
 * the reconfigured client verification level after the HTTP request was read
 * but before the HTTP response is sent.
 * 
 * The following levels are available for level:
 * <PRE>
 * SSL_CVERIFY_NONE - No client Certificate is required at all
 * SSL_CVERIFY_OPTIONAL - The client may present a valid Certificate
 * SSL_CVERIFY_REQUIRE - The client has to present a valid Certificate
 * SSL_CVERIFY_OPTIONAL_NO_CA - The client may present a valid Certificate
 * but it need not to be (successfully) verifiable
 * </PRE>
 * 
 * The depth actually is the maximum number of intermediate certificate issuers,
 * i.e. the number of CA certificates which are max allowed to be followed while
 * verifying the client certificate. A depth of 0 means that self-signed client
 * certificates are accepted only, the default depth of 1 means the client
 * certificate can be self-signed or has to be signed by a CA which is directly
 * known to the server (i.e. the CA's certificate is under
 * <code>setCACertificatePath</code>), etc.
 * @param ctx Server or Client context to use.
 * @param level Type of Client Certificate verification.
 * @param depth Maximum depth of CA Certificates in Client Certificate
 * verification.
 */
 public static native void setVerify(long ctx, int level, int depth);

 /**
 * When tc-native encounters a SNI extension in the TLS handshake it will
 * call this method to determine which OpenSSL SSLContext to use for the
 * connection.
 *
 * @param currentCtx The OpenSSL SSLContext that the handshake started to
 * use. This will be the default OpenSSL SSLContext for
 * the endpoint associated with the socket.
 * @param sniHostName The host name requested by the client
 *
 * @return The Java representation of the pointer to the OpenSSL SSLContext
 * to use for the given host or zero if no SSLContext could be
 * identified
 */
 public static long sniCallBack(long currentCtx, String sniHostName) {
 SNICallBack sniCallBack = sniCallBacks.get(Long.valueOf(currentCtx));
 if (sniCallBack == null) {
 return 0;
 }
 // Can't be sure OpenSSL is going to provide the SNI value in lower case
 // so convert it before looking up the SSLContext
 String hostName = (sniHostName == null) ? null : sniHostName.toLowerCase(Locale.ENGLISH);
 return sniCallBack.getSslContext(hostName);
 }

 /**
 * A map of default SSL Contexts to SNICallBack instances (in Tomcat these
 * are instances of AprEndpoint) that will be used to determine the SSL
 * Context to use bases on the SNI host name. It is structured this way
 * since a Tomcat instance may have several TLS enabled endpoints that each
 * have different SSL Context mappings for the same host name.
 */
 private static final Map<Long,SNICallBack> sniCallBacks = new ConcurrentHashMap<>();

 /**
 * Interface implemented by components that will receive the call back to
 * select an OpenSSL SSLContext based on the host name requested by the
 * client.
 */
 public interface SNICallBack {

 /**
 * This callback is made during the TLS handshake when the client uses
 * the SNI extension to request a specific TLS host.
 *
 * @param sniHostName The host name requested by the client - must be in
 * lower case
 *
 * @return The Java representation of the pointer to the OpenSSL
 * SSLContext to use for the given host or zero if no SSLContext
 * could be identified
 */
 long getSslContext(String sniHostName);
 }

 /**
 * Allow to hook {@link CertificateVerifier} into the handshake processing.
 * This will call {@code SSL_CTX_set_cert_verify_callback} and so replace the default verification
 * callback used by openssl
 * @param ctx Server or Client context to use.
 * @param verifier the verifier to call during handshake.
 */
 public static native void setCertVerifyCallback(long ctx, CertificateVerifier verifier);

 /**
 * Set application layer protocol for application layer protocol negotiation extension
 * @param ctx Server context to use.
 * @param alpnProtos protocols in priority order
 * @param selectorFailureBehavior see {@link SSL#SSL_SELECTOR_FAILURE_NO_ADVERTISE}
 * and {@link SSL#SSL_SELECTOR_FAILURE_CHOOSE_MY_LAST_PROTOCOL}
 */
 public static native void setAlpnProtos(long ctx, String[] alpnProtos, int selectorFailureBehavior);

 /**
 * Set the context within which session be reused (server side only)
 * http://www.openssl.org/docs/ssl/SSL_CTX_set_session_id_context.html
 *
 * @param ctx Server context to use.
 * @param sidCtx can be any kind of binary data, it is therefore possible to use e.g. the name
 * of the application and/or the hostname and/or service name
 * @return {@code true} if success, {@code false} otherwise.
 */
 public static native boolean setSessionIdContext(long ctx, byte[] sidCtx);

 /**
 * Set CertificateRaw
 * 
 * Use keystore a certificate and key to fill the BIOP
 * @param ctx Server or Client context to use.
 * @param cert Byte array with the certificate in DER encoding.
 * @param key Byte array with the Private Key file in PEM format.
 * @param sslAidxRsa Certificate index SSL_AIDX_RSA or SSL_AIDX_DSA.
 * @return {@code true} if success, {@code false} otherwise.
 */
 public static native boolean setCertificateRaw(long ctx, byte[] cert, byte[] key, int sslAidxRsa);

 /**
 * Add a certificate to the certificate chain. Certs should be added in
 * order starting with the issuer of the host certs and working up the
 * certificate chain to the CA.
 *
 * 
 * Use keystore a certificate chain to fill the BIOP
 * @param ctx Server or Client context to use.
 * @param cert Byte array with the certificate in DER encoding.
 * @return {@code true} if success, {@code false} otherwise.
 */
 public static native boolean addChainCertificateRaw(long ctx, byte[] cert);

 /**
 * Add a CA certificate we accept as issuer for peer certs
 * @param ctx Server or Client context to use.
 * @param cert Byte array with the certificate in DER encoding.
 * @return {@code true} if success, {@code false} otherwise.
 */
 public static native boolean addClientCACertificateRaw(long ctx, byte[] cert);
}

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