Examples with GSSException org.ietf.jgss.GSSException used on opensource projects

Example 31 with GSSException

use of org.ietf.jgss.GSSException in project async-http-client by AsyncHttpClient.

the class SpnegoEngine method generateToken.

public String generateToken(String server) throws SpnegoEngineException {
    GSSContext gssContext = null;
    // base64 decoded challenge
    byte[] token = null;
    Oid negotiationOid;
    try {
        log.debug("init {}", server);
        /*
             * Using the SPNEGO OID is the correct method. Kerberos v5 works for IIS but not JBoss. Unwrapping the initial token when using SPNEGO OID looks like what is described
             * here...
             * 
             * http://msdn.microsoft.com/en-us/library/ms995330.aspx
             * 
             * Another helpful URL...
             * 
             * http://publib.boulder.ibm.com/infocenter/wasinfo/v7r0/index.jsp?topic=/com.ibm.websphere.express.doc/info/exp/ae/tsec_SPNEGO_token.html
             * 
             * Unfortunately SPNEGO is JRE >=1.6.
             */
        /** Try SPNEGO by default, fall back to Kerberos later if error */
        negotiationOid = new Oid(SPNEGO_OID);
        boolean tryKerberos = false;
        try {
            GSSManager manager = GSSManager.getInstance();
            GSSName serverName = manager.createName("HTTP@" + server, GSSName.NT_HOSTBASED_SERVICE);
            gssContext = manager.createContext(serverName.canonicalize(negotiationOid), negotiationOid, null, GSSContext.DEFAULT_LIFETIME);
            gssContext.requestMutualAuth(true);
            gssContext.requestCredDeleg(true);
        } catch (GSSException ex) {
            log.error("generateToken", ex);
            // Rethrow any other exception.
            if (ex.getMajor() == GSSException.BAD_MECH) {
                log.debug("GSSException BAD_MECH, retry with Kerberos MECH");
                tryKerberos = true;
            } else {
                throw ex;
            }
        }
        if (tryKerberos) {
            /* Kerberos v5 GSS-API mechanism defined in RFC 1964. */
            log.debug("Using Kerberos MECH {}", KERBEROS_OID);
            negotiationOid = new Oid(KERBEROS_OID);
            GSSManager manager = GSSManager.getInstance();
            GSSName serverName = manager.createName("HTTP@" + server, GSSName.NT_HOSTBASED_SERVICE);
            gssContext = manager.createContext(serverName.canonicalize(negotiationOid), negotiationOid, null, GSSContext.DEFAULT_LIFETIME);
            gssContext.requestMutualAuth(true);
            gssContext.requestCredDeleg(true);
        }
        // TODO suspicious: this will always be null because no value has been assigned before. Assign directly?
        if (token == null) {
            token = new byte[0];
        }
        token = gssContext.initSecContext(token, 0, token.length);
        if (token == null) {
            throw new SpnegoEngineException("GSS security context initialization failed");
        }
        /*
             * IIS accepts Kerberos and SPNEGO tokens. Some other servers Jboss, Glassfish? seem to only accept SPNEGO. Below wraps Kerberos into SPNEGO token.
             */
        if (spnegoGenerator != null && negotiationOid.toString().equals(KERBEROS_OID)) {
            token = spnegoGenerator.generateSpnegoDERObject(token);
        }
        gssContext.dispose();
        String tokenstr = Base64.encode(token);
        log.debug("Sending response '{}' back to the server", tokenstr);
        return tokenstr;
    } catch (GSSException gsse) {
        log.error("generateToken", gsse);
        if (gsse.getMajor() == GSSException.DEFECTIVE_CREDENTIAL || gsse.getMajor() == GSSException.CREDENTIALS_EXPIRED)
            throw new SpnegoEngineException(gsse.getMessage(), gsse);
        if (gsse.getMajor() == GSSException.NO_CRED)
            throw new SpnegoEngineException(gsse.getMessage(), gsse);
        if (gsse.getMajor() == GSSException.DEFECTIVE_TOKEN || gsse.getMajor() == GSSException.DUPLICATE_TOKEN || gsse.getMajor() == GSSException.OLD_TOKEN)
            throw new SpnegoEngineException(gsse.getMessage(), gsse);
        // other error
        throw new SpnegoEngineException(gsse.getMessage());
    } catch (IOException ex) {
        throw new SpnegoEngineException(ex.getMessage());
    }
}

Example 32 with GSSException

use of org.ietf.jgss.GSSException in project jdk8u_jdk by JetBrains.

the class GssMemoryIssues method main.

public static void main(String[] argv) throws Exception {
    GSSManager man = GSSManager.getInstance();
    String s = "me@REALM";
    GSSName name = man.createName(s, GSSName.NT_USER_NAME);
    byte[] exported = name.export();
    // Offset of the length of the mech name. Length in big endian
    int lenOffset = exported.length - s.length() - 4;
    // Make it huge
    exported[lenOffset] = 0x7f;
    try {
        man.createName(exported, GSSName.NT_EXPORT_NAME);
    } catch (GSSException gsse) {
        System.out.println(gsse);
    }
}

Example 33 with GSSException

use of org.ietf.jgss.GSSException in project jdk8u_jdk by JetBrains.

the class MSOID method main.

public static void main(String[] args) throws Exception {
    // msoid.txt is a NegTokenInit packet sent from Internet Explorer to
    // IIS server on a test machine. No sensitive info included.
    byte[] header = Files.readAllBytes(Paths.get(System.getProperty("test.src"), "msoid.txt"));
    byte[] token = Base64.getMimeDecoder().decode(Arrays.copyOfRange(header, 10, header.length));
    GSSCredential cred = null;
    GSSContext ctx = GSSManager.getInstance().createContext(cred);
    try {
        ctx.acceptSecContext(token, 0, token.length);
        // and acceptor chooses another mech and goes on
        throw new Exception("Should fail");
    } catch (GSSException gsse) {
        // After the fix, GSS_KRB5_MECH_OID_MS is recognized but the token
        // cannot be accepted because we don't have any krb5 credential.
        gsse.printStackTrace();
        if (gsse.getMajor() != GSSException.NO_CRED) {
            throw gsse;
        }
        for (StackTraceElement st : gsse.getStackTrace()) {
            if (st.getClassName().startsWith("sun.security.jgss.krb5.")) {
                // Good, it is already in krb5 mech's hand.
                return;
            }
        }
        throw gsse;
    }
}

Example 34 with GSSException

use of org.ietf.jgss.GSSException in project jdk8u_jdk by JetBrains.

the class IgnoreChannelBinding method main.

public static void main(String[] args) throws Exception {
    new OneKDC(null).writeJAASConf();
    Context c = Context.fromJAAS("client");
    Context s = Context.fromJAAS("server");
    // All silent
    c.startAsClient(OneKDC.SERVER, GSSUtil.GSS_KRB5_MECH_OID);
    s.startAsServer(GSSUtil.GSS_KRB5_MECH_OID);
    Context.handshake(c, s);
    // Initiator req, acceptor ignore
    c.startAsClient(OneKDC.SERVER, GSSUtil.GSS_KRB5_MECH_OID);
    c.x().setChannelBinding(new ChannelBinding(InetAddress.getByName("client.rabbit.hole"), InetAddress.getByName("host.rabbit.hole"), new byte[0]));
    s.startAsServer(GSSUtil.GSS_KRB5_MECH_OID);
    Context.handshake(c, s);
    // Both req, and match
    c.startAsClient(OneKDC.SERVER, GSSUtil.GSS_KRB5_MECH_OID);
    c.x().setChannelBinding(new ChannelBinding(InetAddress.getByName("client.rabbit.hole"), InetAddress.getByName("host.rabbit.hole"), new byte[0]));
    s.startAsServer(GSSUtil.GSS_KRB5_MECH_OID);
    s.x().setChannelBinding(new ChannelBinding(InetAddress.getByName("client.rabbit.hole"), InetAddress.getByName("host.rabbit.hole"), new byte[0]));
    Context.handshake(c, s);
    // Both req, NOT match
    c.startAsClient(OneKDC.SERVER, GSSUtil.GSS_KRB5_MECH_OID);
    c.x().setChannelBinding(new ChannelBinding(InetAddress.getByName("client.rabbit.hole"), InetAddress.getByName("host.rabbit.hole"), new byte[0]));
    s.startAsServer(GSSUtil.GSS_KRB5_MECH_OID);
    s.x().setChannelBinding(new ChannelBinding(InetAddress.getByName("client.rabbit.hole"), InetAddress.getByName("host.rabbit.hole"), // 0 -> 1
    new byte[1]));
    try {
        Context.handshake(c, s);
        throw new Exception("Acceptor should reject initiator");
    } catch (GSSException ge) {
    // Expected bahavior
    }
    // Acceptor req, reject
    c.startAsClient(OneKDC.SERVER, GSSUtil.GSS_KRB5_MECH_OID);
    s.startAsServer(GSSUtil.GSS_KRB5_MECH_OID);
    s.x().setChannelBinding(new ChannelBinding(InetAddress.getByName("client.rabbit.hole"), InetAddress.getByName("host.rabbit.hole"), new byte[0]));
    try {
        Context.handshake(c, s);
        throw new Exception("Acceptor should reject initiator");
    } catch (GSSException ge) {
        // Expected bahavior
        if (ge.getMajor() != GSSException.BAD_BINDINGS) {
            throw ge;
        }
    }
}

Example 35 with GSSException

use of org.ietf.jgss.GSSException in project jdk8u_jdk by JetBrains.

the class OkAsDelegate method go.

void go(boolean forwardable, boolean requestDelegState, boolean requestDelegPolicyState, boolean delegState, boolean delegPolicyState, boolean delegated) throws Exception {
    OneKDC kdc = new OneKDC(null);
    kdc.setOption(KDC.Option.OK_AS_DELEGATE, System.getProperty("test.kdc.policy.ok-as-delegate"));
    kdc.writeJAASConf();
    if (!forwardable) {
        // The default OneKDC always includes "forwardable = true"
        // in krb5.conf, override it.
        KDC.saveConfig(OneKDC.KRB5_CONF, kdc, "default_keytab_name = " + OneKDC.KTAB);
        Config.refresh();
    }
    Context c, s;
    c = Context.fromJAAS("client");
    s = Context.fromJAAS("com.sun.security.jgss.krb5.accept");
    Oid mech = GSSUtil.GSS_KRB5_MECH_OID;
    if (System.getProperty("test.spnego") != null) {
        mech = GSSUtil.GSS_SPNEGO_MECH_OID;
    }
    c.startAsClient(OneKDC.SERVER, mech);
    ExtendedGSSContext cx = (ExtendedGSSContext) c.x();
    cx.requestCredDeleg(requestDelegState);
    cx.requestDelegPolicy(requestDelegPolicyState);
    s.startAsServer(mech);
    ExtendedGSSContext sx = (ExtendedGSSContext) s.x();
    Context.handshake(c, s);
    if (cx.getCredDelegState() != delegState) {
        throw new Exception("Initiator cred state error");
    }
    if (sx.getCredDelegState() != delegState) {
        throw new Exception("Acceptor cred state error");
    }
    if (cx.getDelegPolicyState() != delegPolicyState) {
        throw new Exception("Initiator cred policy state error");
    }
    GSSCredential cred = null;
    try {
        cred = s.x().getDelegCred();
    } catch (GSSException e) {
    // leave cred as null
    }
    if (delegated != (cred != null)) {
        throw new Exception("get cred error");
    }
}