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173 lines
5.1 KiB
C
173 lines
5.1 KiB
C
/*
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* Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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#ifndef NET_UTILS_H
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#define NET_UTILS_H
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#include "jvm.h"
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#include "jni_util.h"
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#include "net_util_md.h"
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/************************************************************************
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* Macros and misc constants
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*/
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#define MAX_PACKET_LEN 65536
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#define IPv4 1
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#define IPv6 2
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#define NET_ERROR(env, ex, msg) \
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{ if (!(*env)->ExceptionOccurred(env)) JNU_ThrowByName(env, ex, msg) }
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#define CHECK_NULL(x) if ((x) == NULL) return;
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#define CHECK_NULL_RETURN(x, y) if ((x) == NULL) return y;
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/************************************************************************
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* Cached field IDs
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*
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* The naming convention for field IDs is
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* <class abbrv>_<fieldName>ID
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* i.e. psi_timeoutID is PlainSocketImpl's timeout field's ID.
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*/
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extern jclass ia_class;
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extern jfieldID ia_addressID;
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extern jfieldID ia_familyID;
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extern jfieldID ia_preferIPv6AddressID;
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extern jclass ia4_class;
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extern jmethodID ia4_ctrID;
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/* NetworkInterface fields */
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extern jclass ni_class;
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extern jfieldID ni_nameID;
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extern jfieldID ni_indexID;
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extern jfieldID ni_addrsID;
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extern jfieldID ni_descID;
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extern jmethodID ni_ctrID;
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/* PlainSocketImpl fields */
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extern jfieldID psi_timeoutID;
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extern jfieldID psi_fdID;
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extern jfieldID psi_addressID;
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extern jfieldID psi_portID;
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extern jfieldID psi_localportID;
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/* DatagramPacket fields */
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extern jfieldID dp_addressID;
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extern jfieldID dp_portID;
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extern jfieldID dp_bufID;
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extern jfieldID dp_offsetID;
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extern jfieldID dp_lengthID;
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extern jfieldID dp_bufLengthID;
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/* Inet6Address fields */
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extern jclass ia6_class;
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extern jfieldID ia6_ipaddressID;
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extern jfieldID ia6_scopeidID;
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extern jfieldID ia6_cachedscopeidID;
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extern jfieldID ia6_scopeidsetID;
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extern jfieldID ia6_scopeifnameID;
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extern jfieldID ia6_scopeifnamesetID;
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extern jmethodID ia6_ctrID;
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/************************************************************************
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* Utilities
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*/
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JNIEXPORT void JNICALL Java_java_net_InetAddress_init(JNIEnv *env, jclass cls);
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JNIEXPORT void JNICALL Java_java_net_Inet4Address_init(JNIEnv *env, jclass cls);
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JNIEXPORT void JNICALL Java_java_net_Inet6Address_init(JNIEnv *env, jclass cls);
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JNIEXPORT void JNICALL Java_java_net_NetworkInterface_init(JNIEnv *env, jclass cls);
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JNIEXPORT void JNICALL NET_ThrowNew(JNIEnv *env, int errorNum, char *msg);
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int NET_GetError();
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void NET_ThrowCurrent(JNIEnv *env, char *msg);
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jfieldID NET_GetFileDescriptorID(JNIEnv *env);
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JNIEXPORT jint JNICALL ipv6_available() ;
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void
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NET_AllocSockaddr(struct sockaddr **him, int *len);
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JNIEXPORT int JNICALL
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NET_InetAddressToSockaddr(JNIEnv *env, jobject iaObj, int port, struct sockaddr *him, int *len, jboolean v4MappedAddress);
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JNIEXPORT jobject JNICALL
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NET_SockaddrToInetAddress(JNIEnv *env, struct sockaddr *him, int *port);
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void initLocalAddrTable ();
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void parseExclusiveBindProperty(JNIEnv *env);
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void
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NET_SetTrafficClass(struct sockaddr *him, int trafficClass);
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JNIEXPORT jint JNICALL
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NET_GetPortFromSockaddr(struct sockaddr *him);
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JNIEXPORT jint JNICALL
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NET_SockaddrEqualsInetAddress(JNIEnv *env,struct sockaddr *him, jobject iaObj);
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int
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NET_IsIPv4Mapped(jbyte* caddr);
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int
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NET_IPv4MappedToIPv4(jbyte* caddr);
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int
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NET_IsEqual(jbyte* caddr1, jbyte* caddr2);
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int
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NET_IsZeroAddr(jbyte* caddr);
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/* Socket operations
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*
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* These work just like the JVM_* procedures, except that they may do some
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* platform-specific pre/post processing of the arguments and/or results.
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*/
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JNIEXPORT int JNICALL
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NET_GetSockOpt(int fd, int level, int opt, void *result, int *len);
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JNIEXPORT int JNICALL
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NET_SetSockOpt(int fd, int level, int opt, const void *arg, int len);
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JNIEXPORT int JNICALL
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NET_Bind(int fd, struct sockaddr *him, int len);
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JNIEXPORT int JNICALL
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NET_MapSocketOption(jint cmd, int *level, int *optname);
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JNIEXPORT int JNICALL
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NET_MapSocketOptionV6(jint cmd, int *level, int *optname);
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int getScopeID (struct sockaddr *);
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int cmpScopeID (unsigned int, struct sockaddr *);
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unsigned short in_cksum(unsigned short *addr, int len);
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#endif /* NET_UTILS_H */
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