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Java example source code file (GSSLibStub.c)

This example Java source code file (GSSLibStub.c) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

fid_gsslibstub_pmech, gss_c_no_context, gss_c_no_credential, gss_c_no_name, gss_s_complete, gss_s_context_expired, gsslibstub_acceptcontext, gsslibstub_importcontext, gsslibstub_initcontext, jni_true, jnicall, jniexport, null, om_uint32

The GSSLibStub.c Java example source code

/*
 * Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

#include "sun_security_jgss_wrapper_GSSLibStub.h"
#include "NativeUtil.h"
#include "NativeFunc.h"
#include "jlong.h"
#include <jni.h>

/* Throws a Java Exception by name */

void throwByName(JNIEnv *env, const char *name, const char *msg) {
    jclass cls = (*env)->FindClass(env, name);

    if (cls != 0) /* Otherwise an exception has already been thrown */
        (*env)->ThrowNew(env, cls, msg);
}

void throwOutOfMemoryError(JNIEnv *env, const char *message) {
    throwByName(env, "java/lang/OutOfMemoryError", message);
}

/* Constants for indicating what type of info is needed for inquiries */
const int TYPE_CRED_NAME = 10;
const int TYPE_CRED_TIME = 11;
const int TYPE_CRED_USAGE = 12;

/*
 * Class:     sun_security_jgss_wrapper_GSSLibStub
 * Method:    init
 * Signature: (Ljava/lang/String;)Z
 */
JNIEXPORT jboolean JNICALL
Java_sun_security_jgss_wrapper_GSSLibStub_init(JNIEnv *env,
                                               jclass jcls,
                                               jstring jlibName) {
    const char *libName;
    char *error = NULL;

    if (jlibName == NULL) {
        debug(env, "[GSSLibStub_init] GSS lib name is NULL");
        return JNI_FALSE;
    }

    libName = (*env)->GetStringUTFChars(env, jlibName, NULL);
    sprintf(debugBuf, "[GSSLibStub_init] libName=%s", libName);
    debug(env, debugBuf);

    /* initialize global function table */
    error = loadNative(libName);
    (*env)->ReleaseStringUTFChars(env, jlibName, libName);

    if (error == NULL) {
        return JNI_TRUE;
    } else {
        debug(env, error);
        return JNI_FALSE;
    }
}

/*
 * Class:     sun_security_jgss_wrapper_GSSLibStub
 * Method:    getMechPtr
 * Signature: ([B)J
 */
JNIEXPORT jlong JNICALL
Java_sun_security_jgss_wrapper_GSSLibStub_getMechPtr(JNIEnv *env,
                                                     jclass jcls,
                                                     jbyteArray jbytes) {
  gss_OID cOid;
  unsigned int i, len;
  jbyte* bytes;
  jthrowable gssEx;
  jboolean found;

  if (jbytes != NULL) {
    found = JNI_FALSE;
    len = (unsigned int)((*env)->GetArrayLength(env, jbytes) - 2);
    bytes = (*env)->GetByteArrayElements(env, jbytes, NULL);
    if (bytes != NULL) {
      for (i = 0; i < ftab->mechs->count; i++) {
        cOid = &(ftab->mechs->elements[i]);
        if (len == cOid->length &&
            (memcmp(cOid->elements, (bytes + 2), len) == 0)) {
          // Found a match
          found = JNI_TRUE;
          break;
        }
      }
      (*env)->ReleaseByteArrayElements(env, jbytes, bytes, 0);
    }
    if (found != JNI_TRUE) {
      checkStatus(env, NULL, GSS_S_BAD_MECH, 0, "[GSSLibStub_getMechPtr]");
      return ptr_to_jlong(NULL);
    } else return ptr_to_jlong(cOid);
  } else return ptr_to_jlong(GSS_C_NO_OID);
}


/*
 * Utility routine which creates a gss_channel_bindings_t structure
 * using the specified org.ietf.jgss.ChannelBinding object.
 */
gss_channel_bindings_t getGSSCB(JNIEnv *env, jobject jcb) {
  gss_channel_bindings_t cb;
  jobject jinetAddr;
  jbyteArray value;

  if (jcb == NULL) {
    return GSS_C_NO_CHANNEL_BINDINGS;
  }

  cb = malloc(sizeof(struct gss_channel_bindings_struct));

  if (cb == NULL) {
    throwOutOfMemoryError(env,NULL);
    return NULL;
  }

  /* set up initiator address */
  jinetAddr =
    (*env)->CallObjectMethod(env, jcb,
                             MID_ChannelBinding_getInitiatorAddr);
  if (jinetAddr != NULL) {
    cb->initiator_addrtype = GSS_C_AF_INET;
    value = (*env)->CallObjectMethod(env, jinetAddr,
                                     MID_InetAddress_getAddr);
    initGSSBuffer(env, value, &(cb->initiator_address));
  } else {
    cb->initiator_addrtype = GSS_C_AF_NULLADDR;
    cb->initiator_address.length = 0;
    cb->initiator_address.value = NULL;
  }
  /* set up acceptor address */
  jinetAddr =
    (*env)->CallObjectMethod(env, jcb,
                             MID_ChannelBinding_getAcceptorAddr);
  if (jinetAddr != NULL) {
    cb->acceptor_addrtype = GSS_C_AF_INET;
    value = (*env)->CallObjectMethod(env, jinetAddr,
                                     MID_InetAddress_getAddr);
    initGSSBuffer(env, value, &(cb->acceptor_address));
  } else {
    cb->acceptor_addrtype = GSS_C_AF_NULLADDR;
    cb->acceptor_address.length = 0;
    cb->acceptor_address.value = NULL;
  }
  /* set up application data */
  value = (*env)->CallObjectMethod(env, jcb,
                                   MID_ChannelBinding_getAppData);
  if (value != NULL) {
    initGSSBuffer(env, value, &(cb->application_data));
  } else {
    cb->application_data.length = 0;
    cb->application_data.value = NULL;
  }
  return cb;
}

/*
 * Utility routine which releases the specified gss_channel_bindings_t
 * structure.
 */
void releaseGSSCB(JNIEnv *env, jobject jcb, gss_channel_bindings_t cb) {
  jobject jinetAddr;
  jbyteArray value;

  if (cb == GSS_C_NO_CHANNEL_BINDINGS) return;
  /* release initiator address */
  if (cb->initiator_addrtype != GSS_C_AF_NULLADDR) {
    jinetAddr =
      (*env)->CallObjectMethod(env, jcb,
                               MID_ChannelBinding_getInitiatorAddr);
    value = (*env)->CallObjectMethod(env, jinetAddr,
                                     MID_InetAddress_getAddr);
    resetGSSBuffer(env, value, &(cb->initiator_address));
  }
  /* release acceptor address */
  if (cb->acceptor_addrtype != GSS_C_AF_NULLADDR) {
    jinetAddr =
      (*env)->CallObjectMethod(env, jcb,
                               MID_ChannelBinding_getAcceptorAddr);
    value = (*env)->CallObjectMethod(env, jinetAddr,
                                     MID_InetAddress_getAddr);
    resetGSSBuffer(env, value, &(cb->acceptor_address));
  }
  /* release application data */
  if (cb->application_data.length != 0) {
    value = (*env)->CallObjectMethod(env, jcb,
                                     MID_ChannelBinding_getAppData);
    resetGSSBuffer(env, value, &(cb->application_data));
  }
  free(cb);
}

/*
 * Utility routine for storing the supplementary information
 * into the specified org.ietf.jgss.MessageProp object.
 */
void setSupplementaryInfo(JNIEnv *env, jobject jstub, jobject jprop,
                          int suppInfo, int minor) {
  jboolean isDuplicate, isOld, isUnseq, hasGap;
  jstring minorMsg;

  if (suppInfo != GSS_S_COMPLETE) {
    isDuplicate = ((suppInfo & GSS_S_DUPLICATE_TOKEN) != 0);
    isOld = ((suppInfo & GSS_S_OLD_TOKEN) != 0);
    isUnseq = ((suppInfo & GSS_S_UNSEQ_TOKEN) != 0);
    hasGap = ((suppInfo & GSS_S_GAP_TOKEN) != 0);
    minorMsg = getMinorMessage(env, jstub, minor);
    (*env)->CallVoidMethod(env, jprop, MID_MessageProp_setSupplementaryStates,
                           isDuplicate, isOld, isUnseq, hasGap, minor,
                           minorMsg);
  }
}

/*
 * Class:     sun_security_jgss_wrapper_GSSLibStub
 * Method:    indicateMechs
 * Signature: ()[Lorg/ietf/jgss/Oid;
 */
JNIEXPORT jobjectArray JNICALL
Java_sun_security_jgss_wrapper_GSSLibStub_indicateMechs(JNIEnv *env,
                                                        jclass jcls)
{
  if (ftab->mechs != NULL && ftab->mechs != GSS_C_NO_OID_SET) {
    return getJavaOIDArray(env, ftab->mechs);
  } else return NULL;
}

/*
 * Class:     sun_security_jgss_wrapper_GSSLibStub
 * Method:    inquireNamesForMech
 * Signature: ()[Lorg/ietf/jgss/Oid;
 */
JNIEXPORT jobjectArray JNICALL
Java_sun_security_jgss_wrapper_GSSLibStub_inquireNamesForMech(JNIEnv *env,
                                                              jobject jobj)
{
  OM_uint32 minor, major;
  gss_OID mech;
  gss_OID_set nameTypes;
  jobjectArray result;

  if (ftab->inquireNamesForMech != NULL) {

  mech = (gss_OID)jlong_to_ptr((*env)->GetLongField(env, jobj, FID_GSSLibStub_pMech));
  nameTypes = GSS_C_NO_OID_SET;

  /* gss_inquire_names_for_mech(...) => N/A */
  major = (*ftab->inquireNamesForMech)(&minor, mech, &nameTypes);

  result = getJavaOIDArray(env, nameTypes);

  /* release intermediate buffers */
  deleteGSSOIDSet(nameTypes);

  checkStatus(env, jobj, major, minor, "[GSSLibStub_inquireNamesForMech]");
  return result;
  } else return NULL;
}

/*
 * Class:     sun_security_jgss_wrapper_GSSLibStub
 * Method:    releaseName
 * Signature: (J)V
 */
JNIEXPORT void JNICALL
Java_sun_security_jgss_wrapper_GSSLibStub_releaseName(JNIEnv *env,
                                                      jobject jobj,
                                                      jlong pName)
{
  OM_uint32 minor, major;
  gss_name_t nameHdl;

  nameHdl = (gss_name_t) jlong_to_ptr(pName);

  sprintf(debugBuf, "[GSSLibStub_releaseName] %ld", (long) pName);
  debug(env, debugBuf);

  if (nameHdl != GSS_C_NO_NAME) {
    /* gss_release_name(...) => GSS_S_BAD_NAME */
    major = (*ftab->releaseName)(&minor, &nameHdl);
    checkStatus(env, jobj, major, minor, "[GSSLibStub_releaseName]");
  }
}

/*
 * Class:     sun_security_jgss_wrapper_GSSLibStub
 * Method:    importName
 * Signature: ([BLorg/ietf/jgss/Oid;)J
 */
JNIEXPORT jlong JNICALL
Java_sun_security_jgss_wrapper_GSSLibStub_importName(JNIEnv *env,
                                                     jobject jobj,
                                                     jbyteArray jnameVal,
                                                     jobject jnameType)
{
  OM_uint32 minor, major;
  gss_buffer_desc nameVal;
  gss_OID nameType;
  gss_name_t nameHdl;
  nameHdl = GSS_C_NO_NAME;

  debug(env, "[GSSLibStub_importName]");

  initGSSBuffer(env, jnameVal, &nameVal);
  nameType = newGSSOID(env, jnameType);
  if ((*env)->ExceptionCheck(env)) {
    deleteGSSOID(nameType);
    resetGSSBuffer(env, jnameVal, &nameVal);
    return jlong_zero;
  }

  /* gss_import_name(...) => GSS_S_BAD_NAMETYPE, GSS_S_BAD_NAME,
     GSS_S_BAD_MECH */
  major = (*ftab->importName)(&minor, &nameVal, nameType, &nameHdl);

  sprintf(debugBuf, "[GSSLibStub_importName] %ld", (long) nameHdl);
  debug(env, debugBuf);

  /* release intermediate buffers */
  deleteGSSOID(nameType);
  resetGSSBuffer(env, jnameVal, &nameVal);

  checkStatus(env, jobj, major, minor, "[GSSLibStub_importName]");
  return ptr_to_jlong(nameHdl);
}


/*
 * Class:     sun_security_jgss_wrapper_GSSLibStub
 * Method:    compareName
 * Signature: (JJ)Z
 */
JNIEXPORT jboolean JNICALL
Java_sun_security_jgss_wrapper_GSSLibStub_compareName(JNIEnv *env,
                                                      jobject jobj,
                                                      jlong pName1,
                                                      jlong pName2)
{
  OM_uint32 minor, major;
  gss_name_t nameHdl1, nameHdl2;
  int isEqual;

  isEqual = 0;
  nameHdl1 = (gss_name_t) jlong_to_ptr(pName1);
  nameHdl2 = (gss_name_t) jlong_to_ptr(pName2);

  sprintf(debugBuf, "[GSSLibStub_compareName] %ld %ld", (long) pName1,
    (long) pName2);
  debug(env, debugBuf);

  if ((nameHdl1 != GSS_C_NO_NAME) && (nameHdl2 != GSS_C_NO_NAME)) {

    /* gss_compare_name(...) => GSS_S_BAD_NAMETYPE, GSS_S_BAD_NAME(!) */
    major = (*ftab->compareName)(&minor, nameHdl1, nameHdl2, &isEqual);

    checkStatus(env, jobj, major, minor, "[GSSLibStub_compareName]");
  }
  return (isEqual != 0);
}

/*
 * Class:     sun_security_jgss_wrapper_GSSLibStub
 * Method:    canonicalizeName
 * Signature: (J)J
 */
JNIEXPORT jlong JNICALL
Java_sun_security_jgss_wrapper_GSSLibStub_canonicalizeName(JNIEnv *env,
                                                           jobject jobj,
                                                           jlong pName)
{
  OM_uint32 minor, major;
  gss_name_t nameHdl, mnNameHdl;
  gss_OID mech;

  nameHdl = (gss_name_t) jlong_to_ptr(pName);
  sprintf(debugBuf, "[GSSLibStub_canonicalizeName] %ld", (long) pName);
  debug(env, debugBuf);

  if (nameHdl != GSS_C_NO_NAME) {
    mech = (gss_OID) jlong_to_ptr((*env)->GetLongField(env, jobj, FID_GSSLibStub_pMech));
    mnNameHdl = GSS_C_NO_NAME;

    /* gss_canonicalize_name(...) may return GSS_S_BAD_NAMETYPE,
       GSS_S_BAD_NAME, GSS_S_BAD_MECH */
    major = (*ftab->canonicalizeName)(&minor, nameHdl, mech, &mnNameHdl);

    sprintf(debugBuf, "[GSSLibStub_canonicalizeName] MN=%ld",
        (long)mnNameHdl);
    debug(env, debugBuf);

    /* release intermediate buffers */

    checkStatus(env, jobj, major, minor, "[GSSLibStub_canonicalizeName]");
  } else mnNameHdl = GSS_C_NO_NAME;

  return ptr_to_jlong(mnNameHdl);
}

/*
 * Class:     sun_security_jgss_wrapper_GSSLibStub
 * Method:    exportName
 * Signature: (J)[B
 */
JNIEXPORT jbyteArray JNICALL
Java_sun_security_jgss_wrapper_GSSLibStub_exportName(JNIEnv *env,
                                                     jobject jobj,
                                                     jlong pName) {
  OM_uint32 minor, major;
  gss_name_t nameHdl, mNameHdl;
  gss_buffer_desc outBuf;
  jbyteArray jresult;

  nameHdl = (gss_name_t) jlong_to_ptr(pName);
  sprintf(debugBuf, "[GSSLibStub_exportName] %ld", (long) pName);
  debug(env, debugBuf);

  /* gss_export_name(...) => GSS_S_NAME_NOT_MN, GSS_S_BAD_NAMETYPE,
     GSS_S_BAD_NAME */
  major = (*ftab->exportName)(&minor, nameHdl, &outBuf);

  /* canonicalize the internal name to MN and retry */
  if (major == GSS_S_NAME_NOT_MN) {
    debug(env, "[GSSLibStub_exportName] canonicalize and re-try");

    mNameHdl = (gss_name_t)jlong_to_ptr(
        Java_sun_security_jgss_wrapper_GSSLibStub_canonicalizeName
                                        (env, jobj, pName));
    /* return immediately if an exception has occurred */
    if ((*env)->ExceptionCheck(env)) {
      return NULL;
    }
    major = (*ftab->exportName)(&minor, mNameHdl, &outBuf);
    Java_sun_security_jgss_wrapper_GSSLibStub_releaseName
                                        (env, jobj, ptr_to_jlong(mNameHdl));
    /* return immediately if an exception has occurred */
    if ((*env)->ExceptionCheck(env)) {
      return NULL;
    }
  }

  /* release intermediate buffers */
  jresult = getJavaBuffer(env, &outBuf);

  checkStatus(env, jobj, major, minor, "[GSSLibStub_exportName]");
  return jresult;
}

/*
 * Class:     sun_security_jgss_wrapper_GSSLibStub
 * Method:    displayName
 * Signature: (J)[Ljava/lang/Object;
 */
JNIEXPORT jobjectArray JNICALL
Java_sun_security_jgss_wrapper_GSSLibStub_displayName(JNIEnv *env,
                                                      jobject jobj,
                                                      jlong pName) {
  OM_uint32 minor, major;
  gss_name_t nameHdl;
  gss_buffer_desc outNameBuf;
  gss_OID outNameType;
  jstring jname;
  jobject jtype;
  jobjectArray jresult;

  nameHdl = (gss_name_t) jlong_to_ptr(pName);
  sprintf(debugBuf, "[GSSLibStub_displayName] %ld", (long) pName);
  debug(env, debugBuf);

  if (nameHdl == GSS_C_NO_NAME) {
    checkStatus(env, jobj, GSS_S_BAD_NAME, 0, "[GSSLibStub_displayName]");
    return NULL;
  }

  /* gss_display_name(...) => GSS_S_BAD_NAME */
  major = (*ftab->displayName)(&minor, nameHdl, &outNameBuf, &outNameType);

  /* release intermediate buffers */
  jname = getJavaString(env, &outNameBuf);

  jtype = getJavaOID(env, outNameType);
  jresult = (*env)->NewObjectArray(env, 2, CLS_Object, NULL);

  /* return immediately if an exception has occurred */
  if ((*env)->ExceptionCheck(env)) {
    return NULL;
  }

  (*env)->SetObjectArrayElement(env, jresult, 0, jname);
  (*env)->SetObjectArrayElement(env, jresult, 1, jtype);

  checkStatus(env, jobj, major, minor, "[GSSLibStub_displayName]");
  return jresult;
}

/*
 * Class:     sun_security_jgss_wrapper_GSSLibStub
 * Method:    acquireCred
 * Signature: (JII)J
 */
JNIEXPORT jlong JNICALL
Java_sun_security_jgss_wrapper_GSSLibStub_acquireCred(JNIEnv *env,
                                                      jobject jobj,
                                                      jlong pName,
                                                      jint reqTime,
                                                      jint usage)
{
  OM_uint32 minor, major;
  gss_OID mech;
  gss_OID_set mechs;
  gss_cred_usage_t credUsage;
  gss_name_t nameHdl;
  gss_cred_id_t credHdl;
  credHdl = GSS_C_NO_CREDENTIAL;

  debug(env, "[GSSLibStub_acquireCred]");


  mech = (gss_OID) jlong_to_ptr((*env)->GetLongField(env, jobj, FID_GSSLibStub_pMech));
  mechs = newGSSOIDSet(env, mech);
  if ((*env)->ExceptionCheck(env)) {
    return jlong_zero;
  }
  credUsage = (gss_cred_usage_t) usage;
  nameHdl = (gss_name_t) jlong_to_ptr(pName);

  sprintf(debugBuf, "[GSSLibStub_acquireCred] pName=%ld, usage=%d",
    (long) pName, usage);
  debug(env, debugBuf);

  /* gss_acquire_cred(...) => GSS_S_BAD_MECH, GSS_S_BAD_NAMETYPE,
     GSS_S_BAD_NAME, GSS_S_CREDENTIALS_EXPIRED, GSS_S_NO_CRED */
  major =
    (*ftab->acquireCred)(&minor, nameHdl, reqTime, mechs,
                     credUsage, &credHdl, NULL, NULL);
  /* release intermediate buffers */
  deleteGSSOIDSet(mechs);

  sprintf(debugBuf, "[GSSLibStub_acquireCred] pCred=%ld", (long) credHdl);
  debug(env, debugBuf);

  checkStatus(env, jobj, major, minor, "[GSSLibStub_acquireCred]");
  return ptr_to_jlong(credHdl);
}

/*
 * Class:     sun_security_jgss_wrapper_GSSLibStub
 * Method:    releaseCred
 * Signature: (J)J
 */
JNIEXPORT jlong JNICALL
Java_sun_security_jgss_wrapper_GSSLibStub_releaseCred(JNIEnv *env,
                                                      jobject jobj,
                                                      jlong pCred)
{
  OM_uint32 minor, major;
  gss_cred_id_t credHdl;

  credHdl = (gss_cred_id_t) jlong_to_ptr(pCred);

  sprintf(debugBuf, "[GSSLibStub_releaseCred] %ld", (long int)pCred);
  debug(env, debugBuf);

  if (credHdl != GSS_C_NO_CREDENTIAL) {

    /* gss_release_cred(...) => GSS_S_NO_CRED(!) */
    major = (*ftab->releaseCred)(&minor, &credHdl);

    checkStatus(env, jobj, major, minor, "[GSSLibStub_releaseCred]");
  }
  return ptr_to_jlong(credHdl);
}

/*
 * Utility routine for obtaining info about a credential.
 */
void inquireCred(JNIEnv *env, jobject jobj, gss_cred_id_t pCred,
                 jint type, void *result) {
  OM_uint32 minor, major=0;
  OM_uint32 routineErr;
  gss_cred_id_t credHdl;

  credHdl = pCred;

  sprintf(debugBuf, "[gss_inquire_cred] %ld", (long) pCred);
  debug(env, debugBuf);

  /* gss_inquire_cred(...) => GSS_S_DEFECTIVE_CREDENTIAL(!),
     GSS_S_CREDENTIALS_EXPIRED(!), GSS_S_NO_CRED(!) */
  if (type == TYPE_CRED_NAME) {
    major = (*ftab->inquireCred)(&minor, credHdl, result, NULL, NULL, NULL);
  } else if (type == TYPE_CRED_TIME) {
    major = (*ftab->inquireCred)(&minor, credHdl, NULL, result, NULL, NULL);
  } else if (type == TYPE_CRED_USAGE) {
    major = (*ftab->inquireCred)(&minor, credHdl, NULL, NULL, result, NULL);
  }

  /* release intermediate buffers */

  routineErr = GSS_ROUTINE_ERROR(major);
  if (routineErr == GSS_S_CREDENTIALS_EXPIRED) {
    /* ignore GSS_S_CREDENTIALS_EXPIRED for query  */
    major = GSS_CALLING_ERROR(major) |
      GSS_SUPPLEMENTARY_INFO(major);
  } else if (routineErr == GSS_S_NO_CRED) {
    /* twik since Java API throws BAD_MECH instead of NO_CRED */
    major = GSS_CALLING_ERROR(major) |
      GSS_S_BAD_MECH  | GSS_SUPPLEMENTARY_INFO(major);
  }
  checkStatus(env, jobj, major, minor, "[gss_inquire_cred]");
}

/*
 * Class:     sun_security_jgss_wrapper_GSSLibStub
 * Method:    getCredName
 * Signature: (J)J
 */
JNIEXPORT jlong JNICALL
Java_sun_security_jgss_wrapper_GSSLibStub_getCredName(JNIEnv *env,
                                                      jobject jobj,
                                                      jlong pCred)
{
  gss_name_t nameHdl;
  gss_cred_id_t credHdl;

  credHdl = (gss_cred_id_t) jlong_to_ptr(pCred);

  sprintf(debugBuf, "[GSSLibStub_getCredName] %ld", (long int)pCred);
  debug(env, debugBuf);

  nameHdl = GSS_C_NO_NAME;
  inquireCred(env, jobj, credHdl, TYPE_CRED_NAME, &nameHdl);

  /* return immediately if an exception has occurred */
  if ((*env)->ExceptionCheck(env)) {
    return jlong_zero;
  }

  sprintf(debugBuf, "[GSSLibStub_getCredName] pName=%ld", (long) nameHdl);
  debug(env, debugBuf);

  return ptr_to_jlong(nameHdl);
}

/*
 * Class:     sun_security_jgss_wrapper_GSSLibStub
 * Method:    getCredTime
 * Signature: (J)I
 */
JNIEXPORT jint JNICALL
Java_sun_security_jgss_wrapper_GSSLibStub_getCredTime(JNIEnv *env,
                                                      jobject jobj,
                                                      jlong pCred)
{
  gss_cred_id_t credHdl;
  OM_uint32 lifetime;

  credHdl = (gss_cred_id_t) jlong_to_ptr(pCred);

  sprintf(debugBuf, "[GSSLibStub_getCredTime] %ld", (long int)pCred);
  debug(env, debugBuf);

  lifetime = 0;
  inquireCred(env, jobj, credHdl, TYPE_CRED_TIME, &lifetime);

  /* return immediately if an exception has occurred */
  if ((*env)->ExceptionCheck(env)) {
    return 0;
  }
  return getJavaTime(lifetime);
}

/*
 * Class:     sun_security_jgss_wrapper_GSSLibStub
 * Method:    getCredUsage
 * Signature: (J)I
 */
JNIEXPORT jint JNICALL
Java_sun_security_jgss_wrapper_GSSLibStub_getCredUsage(JNIEnv *env,
                                                       jobject jobj,
                                                       jlong pCred)
{
  gss_cred_usage_t usage;
  gss_cred_id_t credHdl;

  credHdl = (gss_cred_id_t) jlong_to_ptr(pCred);

  sprintf(debugBuf, "[GSSLibStub_getCredUsage] %ld", (long int)pCred);
  debug(env, debugBuf);

  inquireCred(env, jobj, credHdl, TYPE_CRED_USAGE, &usage);

  /* return immediately if an exception has occurred */
  if ((*env)->ExceptionCheck(env)) {
    return -1;
  }
  return (jint) usage;
}
/*
 * Class:     sun_security_jgss_wrapper_GSSLibStub
 * Method:    importContext
 * Signature: ([B)Lsun/security/jgss/wrapper/NativeGSSContext;
 */
JNIEXPORT jobject JNICALL
Java_sun_security_jgss_wrapper_GSSLibStub_importContext(JNIEnv *env,
                                                        jobject jobj,
                                                        jbyteArray jctxtToken)
{
  OM_uint32 minor, major;
  gss_buffer_desc ctxtToken;
  gss_ctx_id_t contextHdl;
  gss_OID mech, mech2;

  debug(env, "[GSSLibStub_importContext]");

  contextHdl = GSS_C_NO_CONTEXT;
  initGSSBuffer(env, jctxtToken, &ctxtToken);

  /* gss_import_sec_context(...) => GSS_S_NO_CONTEXT, GSS_S_DEFECTIVE_TOKEN,
     GSS_S_UNAVAILABLE, GSS_S_UNAUTHORIZED */
  major = (*ftab->importSecContext)(&minor, &ctxtToken, &contextHdl);

  sprintf(debugBuf, "[GSSLibStub_importContext] pContext=%ld",
                                        (long) contextHdl);
  debug(env, debugBuf);

  /* release intermediate buffers */
  resetGSSBuffer(env, jctxtToken, &ctxtToken);

  checkStatus(env, jobj, major, minor, "[GSSLibStub_importContext]");
  /* return immediately if an exception has occurred */
  if ((*env)->ExceptionCheck(env)) {
    return NULL;
  }

  /* now that the context has been imported, proceed to find out
     its mech */
  major = (*ftab->inquireContext)(&minor, contextHdl, NULL, NULL,
                              NULL, &mech, NULL, NULL, NULL);

  checkStatus(env, jobj, major, minor, "[GSSLibStub_importContext] getMech");
  /* return immediately if an exception has occurred */
  if ((*env)->ExceptionCheck(env)) {
    return NULL;
  }

  mech2 = (gss_OID) jlong_to_ptr((*env)->GetLongField(env, jobj, FID_GSSLibStub_pMech));

  if (sameMech(env, mech, mech2) == JNI_TRUE) {
    /* mech match - return the context object */
    return (*env)->NewObject(env, CLS_NativeGSSContext,
                                 MID_NativeGSSContext_ctor,
                                 ptr_to_jlong(contextHdl), jobj);
  } else {
    /* mech mismatch - clean up then return null */
    major = (*ftab->deleteSecContext)(&minor, &contextHdl, GSS_C_NO_BUFFER);
    checkStatus(env, jobj, major, minor,
      "[GSSLibStub_importContext] cleanup");
    return NULL;
  }
}
/*
 * Class:     sun_security_jgss_wrapper_GSSLibStub
 * Method:    initContext
 * Signature: (JJLorg/ietf/jgss/ChannelBinding;[BLsun/security/jgss/wrapper/NativeGSSContext;)[B
 */
JNIEXPORT jbyteArray JNICALL
Java_sun_security_jgss_wrapper_GSSLibStub_initContext(JNIEnv *env,
                                                      jobject jobj,
                                                      jlong pCred,
                                                      jlong pName,
                                                      jobject jcb,
                                                      jbyteArray jinToken,
                                                      jobject jcontextSpi)
{
  OM_uint32 minor, major;
  gss_cred_id_t credHdl ;
  gss_ctx_id_t contextHdl;
  gss_name_t targetName;
  gss_OID mech;
  OM_uint32 flags, aFlags;
  OM_uint32 time, aTime;
  gss_channel_bindings_t cb;
  gss_buffer_desc inToken;
  gss_buffer_desc outToken;
  jbyteArray jresult;
/* UNCOMMENT after SEAM bug#6287358 is backported to S10
  gss_OID aMech;
  jobject jMech;
*/
  debug(env, "[GSSLibStub_initContext]");

  credHdl = (gss_cred_id_t) jlong_to_ptr(pCred);
  contextHdl = (gss_ctx_id_t) jlong_to_ptr(
    (*env)->GetLongField(env, jcontextSpi, FID_NativeGSSContext_pContext));
  targetName = (gss_name_t) jlong_to_ptr(pName);
  mech = (gss_OID) jlong_to_ptr((*env)->GetLongField(env, jobj, FID_GSSLibStub_pMech));
  flags = (OM_uint32) (*env)->GetIntField(env, jcontextSpi,
                                          FID_NativeGSSContext_flags);
  time = getGSSTime((*env)->GetIntField(env, jcontextSpi,
                                        FID_NativeGSSContext_lifetime));
  cb = getGSSCB(env, jcb);
  if ((*env)->ExceptionCheck(env)) {
    free(cb);
    return NULL;
  }

  initGSSBuffer(env, jinToken, &inToken);

  sprintf(debugBuf,
          "[GSSLibStub_initContext] before: pCred=%ld, pContext=%ld",
          (long)credHdl, (long)contextHdl);
  debug(env, debugBuf);

  /* gss_init_sec_context(...) => GSS_S_CONTINUE_NEEDED(!),
     GSS_S_DEFECTIVE_TOKEN, GSS_S_NO_CRED, GSS_S_DEFECTIVE_CREDENTIAL(!),
     GSS_S_CREDENTIALS_EXPIRED, GSS_S_BAD_BINDINGS, GSS_S_BAD_MIC,
     GSS_S_OLD_TOKEN, GSS_S_DUPLICATE_TOKEN, GSS_S_NO_CONTEXT(!),
     GSS_S_BAD_NAMETYPE, GSS_S_BAD_NAME(!), GSS_S_BAD_MECH */
  major = (*ftab->initSecContext)(&minor, credHdl,
                               &contextHdl, targetName, mech,
                               flags, time, cb, &inToken, NULL /*aMech*/,
                               &outToken, &aFlags, &aTime);

  sprintf(debugBuf, "[GSSLibStub_initContext] after: pContext=%ld",
          (long)contextHdl);
  debug(env, debugBuf);
  sprintf(debugBuf, "[GSSLibStub_initContext] outToken len=%ld",
          (long)outToken.length);
  debug(env, debugBuf);

  if (GSS_ERROR(major) == GSS_S_COMPLETE) {
    /* update member values if needed */
    (*env)->SetLongField(env, jcontextSpi, FID_NativeGSSContext_pContext,
                        ptr_to_jlong(contextHdl));
    (*env)->SetIntField(env, jcontextSpi, FID_NativeGSSContext_flags, aFlags);
    sprintf(debugBuf, "[GSSLibStub_initContext] set flags=0x%x", aFlags);
    debug(env, debugBuf);

    if (major == GSS_S_COMPLETE) {
      (*env)->SetIntField(env, jcontextSpi, FID_NativeGSSContext_lifetime,
                          getJavaTime(aTime));
      debug(env, "[GSSLibStub_initContext] context established");

      (*env)->SetBooleanField(env, jcontextSpi,
                              FID_NativeGSSContext_isEstablished,
                              JNI_TRUE);

/* UNCOMMENT after SEAM bug#6287358 is backported to S10
      jMech = getJavaOID(env, aMech);
      (*env)->SetObjectField(env, jcontextSpi,
                             FID_NativeGSSContext_actualMech, jMech);
*/
    } else if (major & GSS_S_CONTINUE_NEEDED) {
      debug(env, "[GSSLibStub_initContext] context not established");
      major -= GSS_S_CONTINUE_NEEDED;
    }
  }
  /* release intermediate buffers */
  releaseGSSCB(env, jcb, cb);
  resetGSSBuffer(env, jinToken, &inToken);
  jresult = getJavaBuffer(env, &outToken);

  checkStatus(env, jobj, major, minor, "[GSSLibStub_initContext]");
  return jresult;
}

/*
 * Class:     sun_security_jgss_wrapper_GSSLibStub
 * Method:    acceptContext
 * Signature: (JLorg/ietf/jgss/ChannelBinding;[BLsun/security/jgss/wrapper/NativeGSSContext;)[B
 */
JNIEXPORT jbyteArray JNICALL
Java_sun_security_jgss_wrapper_GSSLibStub_acceptContext(JNIEnv *env,
                                                        jobject jobj,
                                                        jlong pCred,
                                                        jobject jcb,
                                                        jbyteArray jinToken,
                                                        jobject jcontextSpi)
{
  OM_uint32 minor, major;
  OM_uint32 minor2, major2;
  gss_ctx_id_t contextHdl;
  gss_cred_id_t credHdl;
  gss_buffer_desc inToken;
  gss_channel_bindings_t cb;
  gss_name_t srcName;
  gss_buffer_desc outToken;
  gss_OID aMech;
  OM_uint32 aFlags;
  OM_uint32 aTime;
  gss_cred_id_t delCred;
  jobject jsrcName=GSS_C_NO_NAME;
  jobject jdelCred;
  jobject jMech;
  jbyteArray jresult;
  jboolean setTarget;
  gss_name_t targetName;
  jobject jtargetName;

  debug(env, "[GSSLibStub_acceptContext]");

  contextHdl = (gss_ctx_id_t)jlong_to_ptr(
    (*env)->GetLongField(env, jcontextSpi, FID_NativeGSSContext_pContext));
  credHdl = (gss_cred_id_t) jlong_to_ptr(pCred);
  initGSSBuffer(env, jinToken, &inToken);
  cb = getGSSCB(env, jcb);
  if ((*env)->ExceptionCheck(env)) {
    free(cb);
    resetGSSBuffer(env, jinToken, &inToken);
    return NULL;
  }
  srcName = GSS_C_NO_NAME;
  delCred = GSS_C_NO_CREDENTIAL;
  setTarget = (credHdl == GSS_C_NO_CREDENTIAL);
  aFlags = 0;

  sprintf(debugBuf,
          "[GSSLibStub_acceptContext] before: pCred=%ld, pContext=%ld",
          (long) credHdl, (long) contextHdl);
  debug(env, debugBuf);

  /* gss_accept_sec_context(...) => GSS_S_CONTINUE_NEEDED(!),
     GSS_S_DEFECTIVE_TOKEN, GSS_S_DEFECTIVE_CREDENTIAL(!),
     GSS_S_NO_CRED, GSS_S_CREDENTIALS_EXPIRED, GSS_S_BAD_BINDINGS,
     GSS_S_NO_CONTEXT(!), GSS_S_BAD_MIC, GSS_S_OLD_TOKEN,
     GSS_S_DUPLICATE_TOKEN, GSS_S_BAD_MECH */
  major =
    (*ftab->acceptSecContext)(&minor, &contextHdl, credHdl,
                           &inToken, cb, &srcName, &aMech, &outToken,
                           &aFlags, &aTime, &delCred);

  sprintf(debugBuf,
        "[GSSLibStub_acceptContext] after: pCred=%ld, pContext=%ld, pDelegCred=%ld",
        (long)credHdl, (long)contextHdl, (long) delCred);
  debug(env, debugBuf);

  if (GSS_ERROR(major) == GSS_S_COMPLETE) {
    /* update member values if needed */
    (*env)->SetLongField(env, jcontextSpi, FID_NativeGSSContext_pContext,
                        ptr_to_jlong(contextHdl));
    sprintf(debugBuf, "[GSSLibStub_acceptContext] set pContext=%ld",
            (long)contextHdl);
    debug(env, debugBuf);
    // WORKAROUND for a Heimdal bug
    if (delCred == GSS_C_NO_CREDENTIAL) {
        aFlags &= 0xfffffffe;
    }
    (*env)->SetIntField(env, jcontextSpi, FID_NativeGSSContext_flags, aFlags);
    sprintf(debugBuf, "[GSSLibStub_acceptContext] set flags=0x%x",
            aFlags);
    debug(env, debugBuf);
    if (setTarget) {
      major2 = (*ftab->inquireContext)(&minor2, contextHdl, NULL,
                              &targetName, NULL, NULL, NULL,
                              NULL, NULL);
      jtargetName = (*env)->NewObject(env, CLS_GSSNameElement,
                                MID_GSSNameElement_ctor,
                                ptr_to_jlong(targetName), jobj);

      /* return immediately if an exception has occurred */
      if ((*env)->ExceptionCheck(env)) {
        resetGSSBuffer(env, jinToken, &inToken);
        return NULL;
      }
      sprintf(debugBuf, "[GSSLibStub_acceptContext] set targetName=%ld",
              (long)targetName);
      debug(env, debugBuf);
      (*env)->SetObjectField(env, jcontextSpi, FID_NativeGSSContext_targetName,
                             jtargetName);
    }
    if (srcName != GSS_C_NO_NAME) {
      jsrcName = (*env)->NewObject(env, CLS_GSSNameElement,
                                   MID_GSSNameElement_ctor,
                                   ptr_to_jlong(srcName), jobj);
      /* return immediately if an exception has occurred */
      if ((*env)->ExceptionCheck(env)) {
        resetGSSBuffer(env, jinToken, &inToken);
        return NULL;
      }
      sprintf(debugBuf, "[GSSLibStub_acceptContext] set srcName=%ld",
              (long)srcName);
      debug(env, debugBuf);
      (*env)->SetObjectField(env, jcontextSpi, FID_NativeGSSContext_srcName,
                             jsrcName);
    }
    if (major == GSS_S_COMPLETE) {
      debug(env, "[GSSLibStub_acceptContext] context established");

      (*env)->SetIntField(env, jcontextSpi, FID_NativeGSSContext_lifetime,
                          getJavaTime(aTime));

      (*env)->SetBooleanField(env, jcontextSpi,
                              FID_NativeGSSContext_isEstablished,
                              JNI_TRUE);
      jMech = getJavaOID(env, aMech);
      (*env)->SetObjectField(env, jcontextSpi,
                             FID_NativeGSSContext_actualMech, jMech);
      if (delCred != GSS_C_NO_CREDENTIAL) {
        jdelCred = (*env)->NewObject(env, CLS_GSSCredElement,
                                     MID_GSSCredElement_ctor,
                                     ptr_to_jlong(delCred), jsrcName, jMech);
        /* return immediately if an exception has occurred */
        if ((*env)->ExceptionCheck(env)) {
          resetGSSBuffer(env, jinToken, &inToken);
          return NULL;
        }
        (*env)->SetObjectField(env, jcontextSpi,
                               FID_NativeGSSContext_delegatedCred,
                               jdelCred);
        sprintf(debugBuf, "[GSSLibStub_acceptContext] set delegatedCred=%ld",
                (long) delCred);
        debug(env, debugBuf);
      }
    } else if (major & GSS_S_CONTINUE_NEEDED) {
      debug(env, "[GSSLibStub_acceptContext] context not established");

      if (aFlags & GSS_C_PROT_READY_FLAG) {
        (*env)->SetIntField(env, jcontextSpi, FID_NativeGSSContext_lifetime,
                            getJavaTime(aTime));
      }
      major -= GSS_S_CONTINUE_NEEDED;
    }
  }
  /* release intermediate buffers */
  releaseGSSCB(env, jcb, cb);
  resetGSSBuffer(env, jinToken, &inToken);
  jresult = getJavaBuffer(env, &outToken);

  checkStatus(env, jobj, major, minor, "[GSSLibStub_acceptContext]");
  return jresult;
}

/*
 * Class:     sun_security_jgss_wrapper_GSSLibStub
 * Method:    inquireContext
 * Signature: (J)[J
 */
JNIEXPORT jlongArray JNICALL
Java_sun_security_jgss_wrapper_GSSLibStub_inquireContext(JNIEnv *env,
                                                         jobject jobj,
                                                         jlong pContext)
{
  OM_uint32 minor, major;
  gss_ctx_id_t contextHdl;
  gss_name_t srcName, targetName;
  OM_uint32 time;
  OM_uint32 flags;
  int isInitiator, isEstablished;
  jlong result[6];
  jlongArray jresult;

  contextHdl = (gss_ctx_id_t) jlong_to_ptr(pContext);

  sprintf(debugBuf, "[GSSLibStub_inquireContext] %ld", (long)contextHdl);
  debug(env, debugBuf);

  srcName = targetName = GSS_C_NO_NAME;
  time = 0;
  flags = isInitiator = isEstablished = 0;

  /* gss_inquire_context(...) => GSS_S_NO_CONTEXT(!) */
  major = (*ftab->inquireContext)(&minor, contextHdl, &srcName,
                              &targetName, &time, NULL, &flags,
                              &isInitiator, &isEstablished);
  /* update member values if needed */
  sprintf(debugBuf, "[GSSLibStub_inquireContext] srcName %ld", (long)srcName);
  debug(env, debugBuf);
  sprintf(debugBuf, "[GSSLibStub_inquireContext] targetName %ld",
                                                (long)targetName);
  debug(env, debugBuf);

  result[0] = ptr_to_jlong(srcName);
  result[1] = ptr_to_jlong(targetName);
  result[2] = (jlong) isInitiator;
  result[3] = (jlong) isEstablished;
  result[4] = (jlong) flags;
  result[5] = (jlong) getJavaTime(time);

  jresult = (*env)->NewLongArray(env, 6);
  (*env)->SetLongArrayRegion(env, jresult, 0, 6, result);

  /* release intermediate buffers */

  checkStatus(env, jobj, major, minor, "[GSSLibStub_inquireContext]");
  return jresult;
}

/*
 * Class:     sun_security_jgss_wrapper_GSSLibStub
 * Method:    getContextMech
 * Signature: (J)Lorg/ietf/jgss/Oid;
 */
JNIEXPORT jobject JNICALL
Java_sun_security_jgss_wrapper_GSSLibStub_getContextMech(JNIEnv *env,
                                                         jobject jobj,
                                                         jlong pContext)
{
  OM_uint32 minor, major;
  gss_OID mech;
  gss_ctx_id_t contextHdl;

  contextHdl = (gss_ctx_id_t) jlong_to_ptr(pContext);

  sprintf(debugBuf, "[GSSLibStub_getContextMech] %ld", (long int)pContext);
  debug(env, debugBuf);

  major = (*ftab->inquireContext)(&minor, contextHdl, NULL, NULL,
                                NULL, &mech, NULL,  NULL, NULL);

  checkStatus(env, jobj, major, minor, "[GSSLibStub_getContextMech]");
  /* return immediately if an exception has occurred */
  if ((*env)->ExceptionCheck(env)) {
    return NULL;
  }

  return getJavaOID(env, mech);
}

/*
 * Class:     sun_security_jgss_wrapper_GSSLibStub
 * Method:    getContextName
 * Signature: (JZ)J
 */
JNIEXPORT jlong JNICALL
Java_sun_security_jgss_wrapper_GSSLibStub_getContextName(JNIEnv *env,
  jobject jobj, jlong pContext, jboolean isSrc)
{
  OM_uint32 minor, major;
  gss_name_t nameHdl;
  gss_ctx_id_t contextHdl;

  contextHdl = (gss_ctx_id_t) jlong_to_ptr(pContext);

  sprintf(debugBuf, "[GSSLibStub_getContextName] %ld, isSrc=%d",
          (long)contextHdl, isSrc);
  debug(env, debugBuf);

  nameHdl = GSS_C_NO_NAME;
  if (isSrc == JNI_TRUE) {
    major = (*ftab->inquireContext)(&minor, contextHdl, &nameHdl, NULL,
                                NULL, NULL, NULL,  NULL, NULL);
  } else {
    major = (*ftab->inquireContext)(&minor, contextHdl, NULL, &nameHdl,
                                NULL, NULL, NULL,  NULL, NULL);
  }

  checkStatus(env, jobj, major, minor, "[GSSLibStub_inquireContextAll]");
  /* return immediately if an exception has occurred */
  if ((*env)->ExceptionCheck(env)) {
    return jlong_zero;
  }

  sprintf(debugBuf, "[GSSLibStub_getContextName] pName=%ld", (long) nameHdl);
  debug(env, debugBuf);

  return ptr_to_jlong(nameHdl);
}

/*
 * Class:     sun_security_jgss_wrapper_GSSLibStub
 * Method:    getContextTime
 * Signature: (J)I
 */
JNIEXPORT jint JNICALL
Java_sun_security_jgss_wrapper_GSSLibStub_getContextTime(JNIEnv *env,
                                                         jobject jobj,
                                                         jlong pContext) {
  OM_uint32 minor, major;
  gss_ctx_id_t contextHdl;
  OM_uint32 time;

  contextHdl = (gss_ctx_id_t) jlong_to_ptr(pContext);
  sprintf(debugBuf, "[GSSLibStub_getContextTime] %ld", (long)contextHdl);
  debug(env, debugBuf);

  if (contextHdl == GSS_C_NO_CONTEXT) return 0;

  /* gss_context_time(...) => GSS_S_CONTEXT_EXPIRED(!),
     GSS_S_NO_CONTEXT(!) */
  major = (*ftab->contextTime)(&minor, contextHdl, &time);
  if (GSS_ROUTINE_ERROR(major) == GSS_S_CONTEXT_EXPIRED) {
    major = GSS_CALLING_ERROR(major) | GSS_SUPPLEMENTARY_INFO(major);
  }
  checkStatus(env, jobj, major, minor, "[GSSLibStub_getContextTime]");
  return getJavaTime(time);
}

/*
 * Class:     sun_security_jgss_wrapper_GSSLibStub
 * Method:    deleteContext
 * Signature: (J)J
 */
JNIEXPORT jlong JNICALL
Java_sun_security_jgss_wrapper_GSSLibStub_deleteContext(JNIEnv *env,
                                                        jobject jobj,
                                                        jlong pContext)
{
  OM_uint32 minor, major;
  gss_ctx_id_t contextHdl;

  contextHdl = (gss_ctx_id_t) jlong_to_ptr(pContext);
  sprintf(debugBuf, "[GSSLibStub_deleteContext] %ld", (long)contextHdl);
  debug(env, debugBuf);

  if (contextHdl == GSS_C_NO_CONTEXT) return ptr_to_jlong(GSS_C_NO_CONTEXT);

  /* gss_delete_sec_context(...) => GSS_S_NO_CONTEXT(!) */
  major = (*ftab->deleteSecContext)(&minor, &contextHdl, GSS_C_NO_BUFFER);

  checkStatus(env, jobj, major, minor, "[GSSLibStub_deleteContext]");
  return (jlong) ptr_to_jlong(contextHdl);
}

/*
 * Class:     sun_security_jgss_wrapper_GSSLibStub
 * Method:    wrapSizeLimit
 * Signature: (JIII)I
 */
JNIEXPORT jint JNICALL
Java_sun_security_jgss_wrapper_GSSLibStub_wrapSizeLimit(JNIEnv *env,
                                                        jobject jobj,
                                                        jlong pContext,
                                                        jint reqFlag,
                                                        jint jqop,
                                                        jint joutSize)
{
  OM_uint32 minor, major;
  gss_ctx_id_t contextHdl;
  OM_uint32 outSize, maxInSize;
  gss_qop_t qop;

  contextHdl = (gss_ctx_id_t) jlong_to_ptr(pContext);
  sprintf(debugBuf, "[GSSLibStub_wrapSizeLimit] %ld", (long)contextHdl);
  debug(env, debugBuf);

  // Check context handle??

  qop = (gss_qop_t) jqop;
  outSize = (OM_uint32) joutSize;
  maxInSize = 0;
  /* gss_wrap_size_limit(...) => GSS_S_NO_CONTEXT(!), GSS_S_CONTEXT_EXPIRED,
     GSS_S_BAD_QOP */
  major = (*ftab->wrapSizeLimit)(&minor, contextHdl, reqFlag,
                              qop, outSize, &maxInSize);

  checkStatus(env, jobj, major, minor, "[GSSLibStub_wrapSizeLimit]");
  return (jint) maxInSize;
}

/*
 * Class:     sun_security_jgss_wrapper_GSSLibStub
 * Method:    exportContext
 * Signature: (J)[B
 */
JNIEXPORT jbyteArray JNICALL
Java_sun_security_jgss_wrapper_GSSLibStub_exportContext(JNIEnv *env,
                                                        jobject jobj,
                                                        jlong pContext)
{
  OM_uint32 minor, major;
  gss_ctx_id_t contextHdl;
  gss_buffer_desc interProcToken;
  jbyteArray jresult;

  contextHdl = (gss_ctx_id_t) jlong_to_ptr(pContext);
  sprintf(debugBuf, "[GSSLibStub_exportContext] %ld", (long)contextHdl);
  debug(env, debugBuf);

  if (contextHdl == GSS_C_NO_CONTEXT) {
    // Twik per javadoc
    checkStatus(env, jobj, GSS_S_NO_CONTEXT, 0, "[GSSLibStub_exportContext]");
    return NULL;
  }
  /* gss_export_sec_context(...) => GSS_S_CONTEXT_EXPIRED,
     GSS_S_NO_CONTEXT, GSS_S_UNAVAILABLE */
  major =
    (*ftab->exportSecContext)(&minor, &contextHdl, &interProcToken);

  /* release intermediate buffers */
  jresult = getJavaBuffer(env, &interProcToken);
  checkStatus(env, jobj, major, minor, "[GSSLibStub_exportContext]");
  return jresult;
}

/*
 * Class:     sun_security_jgss_wrapper_GSSLibStub
 * Method:    getMic
 * Signature: (JI[B)[B
 */
JNIEXPORT jbyteArray JNICALL
Java_sun_security_jgss_wrapper_GSSLibStub_getMic(JNIEnv *env, jobject jobj,
                                                 jlong pContext, jint jqop,
                                                 jbyteArray jmsg)
{
  OM_uint32 minor, major;
  gss_ctx_id_t contextHdl;
  gss_qop_t qop;
  gss_buffer_desc msg;
  gss_buffer_desc msgToken;
  jbyteArray jresult;

  contextHdl = (gss_ctx_id_t) jlong_to_ptr(pContext);
  sprintf(debugBuf, "[GSSLibStub_getMic] %ld", (long)contextHdl);
  debug(env, debugBuf);

  if (contextHdl == GSS_C_NO_CONTEXT) {
    // Twik per javadoc
    checkStatus(env, jobj, GSS_S_CONTEXT_EXPIRED, 0, "[GSSLibStub_getMic]");
    return NULL;
  }
  contextHdl = (gss_ctx_id_t) jlong_to_ptr(pContext);
  qop = (gss_qop_t) jqop;
  initGSSBuffer(env, jmsg, &msg);

  /* gss_get_mic(...) => GSS_S_CONTEXT_EXPIRED, GSS_S_NO_CONTEXT(!),
     GSS_S_BAD_QOP */
  major =
    (*ftab->getMic)(&minor, contextHdl, qop, &msg, &msgToken);

  /* release intermediate buffers */
  resetGSSBuffer(env, jmsg, &msg);
  jresult = getJavaBuffer(env, &msgToken);

  checkStatus(env, jobj, major, minor, "[GSSLibStub_getMic]");
  return jresult;
}

/*
 * Class:     sun_security_jgss_wrapper_GSSLibStub
 * Method:    verifyMic
 * Signature: (J[B[BLorg/ietf/jgss/MessageProp;)V
 */
JNIEXPORT void JNICALL
Java_sun_security_jgss_wrapper_GSSLibStub_verifyMic(JNIEnv *env,
                                                    jobject jobj,
                                                    jlong pContext,
                                                    jbyteArray jmsgToken,
                                                    jbyteArray jmsg,
                                                    jobject jprop)
{
  OM_uint32 minor, major;
  gss_ctx_id_t contextHdl;
  gss_buffer_desc msg;
  gss_buffer_desc msgToken;
  gss_qop_t qop;

  contextHdl = (gss_ctx_id_t) jlong_to_ptr(pContext);
  sprintf(debugBuf, "[GSSLibStub_verifyMic] %ld", (long)contextHdl);
  debug(env, debugBuf);

  if (contextHdl == GSS_C_NO_CONTEXT) {
    // Twik per javadoc
    checkStatus(env, jobj, GSS_S_CONTEXT_EXPIRED, 0,
        "[GSSLibStub_verifyMic]");
    return;
  }
  initGSSBuffer(env, jmsg, &msg);
  initGSSBuffer(env, jmsgToken, &msgToken);
  qop = (gss_qop_t) (*env)->CallIntMethod(env, jprop, MID_MessageProp_getQOP);
  /* gss_verify_mic(...) => GSS_S_DEFECTIVE_TOKEN, GSS_S_BAD_MIC,
     GSS_S_CONTEXT_EXPIRED, GSS_S_DUPLICATE_TOKEN(!), GSS_S_OLD_TOKEN(!),
     GSS_S_UNSEQ_TOKEN(!), GSS_S_GAP_TOKEN(!), GSS_S_NO_CONTEXT(!) */
  major =
    (*ftab->verifyMic)(&minor, contextHdl, &msg, &msgToken, &qop);

  /* release intermediate buffers */
  resetGSSBuffer(env, jmsg, &msg);
  resetGSSBuffer(env, jmsgToken, &msgToken);

  (*env)->CallVoidMethod(env, jprop, MID_MessageProp_setQOP, qop);
  setSupplementaryInfo(env, jobj, jprop, GSS_SUPPLEMENTARY_INFO(major),
                       minor);
  checkStatus(env, jobj, GSS_ERROR(major), minor, "[GSSLibStub_verifyMic]");
}

/*
 * Class:     sun_security_jgss_wrapper_GSSLibStub
 * Method:    wrap
 * Signature: (J[BLorg/ietf/jgss/MessageProp;)[B
 */
JNIEXPORT jbyteArray JNICALL
Java_sun_security_jgss_wrapper_GSSLibStub_wrap(JNIEnv *env,
                                               jobject jobj,
                                               jlong pContext,
                                               jbyteArray jmsg,
                                               jobject jprop)
{
  OM_uint32 minor, major;
  jboolean confFlag;
  gss_qop_t qop;
  gss_buffer_desc msg;
  gss_buffer_desc msgToken;
  int confState;
  gss_ctx_id_t contextHdl;
  jbyteArray jresult;

  contextHdl = (gss_ctx_id_t) jlong_to_ptr(pContext);
  sprintf(debugBuf, "[GSSLibStub_wrap] %ld", (long)contextHdl);
  debug(env, debugBuf);

  if (contextHdl == GSS_C_NO_CONTEXT) {
    // Twik per javadoc
    checkStatus(env, jobj, GSS_S_CONTEXT_EXPIRED, 0, "[GSSLibStub_wrap]");
    return NULL;
  }

  confFlag =
    (*env)->CallBooleanMethod(env, jprop, MID_MessageProp_getPrivacy);
  qop = (gss_qop_t)
    (*env)->CallIntMethod(env, jprop, MID_MessageProp_getQOP);
  initGSSBuffer(env, jmsg, &msg);
  /* gss_wrap(...) => GSS_S_CONTEXT_EXPIRED, GSS_S_NO_CONTEXT(!),
     GSS_S_BAD_QOP */
  major = (*ftab->wrap)(&minor, contextHdl, confFlag, qop, &msg, &confState,
                   &msgToken);

  (*env)->CallVoidMethod(env, jprop, MID_MessageProp_setPrivacy,
                         (confState? JNI_TRUE:JNI_FALSE));

  /* release intermediate buffers */
  resetGSSBuffer(env, jmsg, &msg);
  jresult = getJavaBuffer(env, &msgToken);

  checkStatus(env, jobj, major, minor, "[GSSLibStub_wrap]");
  return jresult;
}

/*
 * Class:     sun_security_jgss_wrapper_GSSLibStub
 * Method:    unwrap
 * Signature: (J[BLorg/ietf/jgss/MessageProp;)[B
 */
JNIEXPORT jbyteArray JNICALL
Java_sun_security_jgss_wrapper_GSSLibStub_unwrap(JNIEnv *env,
                                                 jobject jobj,
                                                 jlong pContext,
                                                 jbyteArray jmsgToken,
                                                 jobject jprop)
{
  OM_uint32 minor, major;
  gss_ctx_id_t contextHdl;
  gss_buffer_desc msgToken;
  gss_buffer_desc msg;
  int confState;
  gss_qop_t qop;
  jbyteArray jresult;

  contextHdl = (gss_ctx_id_t) jlong_to_ptr(pContext);
  sprintf(debugBuf, "[GSSLibStub_unwrap] %ld", (long)contextHdl);
  debug(env, debugBuf);

  if (contextHdl == GSS_C_NO_CONTEXT) {
    // Twik per javadoc
    checkStatus(env, jobj, GSS_S_CONTEXT_EXPIRED, 0, "[GSSLibStub_unwrap]");
    return NULL;
  }
  initGSSBuffer(env, jmsgToken, &msgToken);
  confState = 0;
  qop = GSS_C_QOP_DEFAULT;
  /* gss_unwrap(...) => GSS_S_DEFECTIVE_TOKEN, GSS_S_BAD_MIC,
     GSS_S_CONTEXT_EXPIRED, GSS_S_DUPLICATE_TOKEN(!), GSS_S_OLD_TOKEN(!),
     GSS_S_UNSEQ_TOKEN(!), GSS_S_GAP_TOKEN(!), GSS_S_NO_CONTEXT(!) */
  major =
    (*ftab->unwrap)(&minor, contextHdl, &msgToken, &msg, &confState, &qop);
  /* update the message prop with relevant info */
  (*env)->CallVoidMethod(env, jprop, MID_MessageProp_setPrivacy,
                         (confState != 0));
  (*env)->CallVoidMethod(env, jprop, MID_MessageProp_setQOP, qop);
  setSupplementaryInfo(env, jobj, jprop, GSS_SUPPLEMENTARY_INFO(major),
                       minor);

  /* release intermediate buffers */
  resetGSSBuffer(env, jmsgToken, &msgToken);
  jresult = getJavaBuffer(env, &msg);

  checkStatus(env, jobj, GSS_ERROR(major), minor, "[GSSLibStub_unwrap]");
  return jresult;
}

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