1 /* 2 * Copyright 1997-2008 Sun Microsystems, Inc. All Rights Reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Sun designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Sun in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, 22 * CA 95054 USA or visit www.sun.com if you need additional information or 23 * have any questions. 24 */ 25 26 #ifndef NET_UTILS_H 27 #define NET_UTILS_H 28 29 #include "jvm.h" 30 #include "jni_util.h" 31 #include "net_util_md.h" 32 33 /************************************************************************ 34 * Macros and misc constants 35 */ 36 37 #define MAX_PACKET_LEN 65536 38 39 #define IPv4 1 40 #define IPv6 2 41 42 #define NET_ERROR(env, ex, msg) \ 43 { if (!(*env)->ExceptionOccurred(env)) JNU_ThrowByName(env, ex, msg) } 44 45 #define CHECK_NULL(x) if ((x) == NULL) return; 46 #define CHECK_NULL_RETURN(x, y) if ((x) == NULL) return y; 47 48 /************************************************************************ 49 * Cached field IDs 50 * 51 * The naming convention for field IDs is 52 * <class abbrv>_<fieldName>ID 53 * i.e. psi_timeoutID is PlainSocketImpl's timeout field's ID. 54 */ 55 extern jclass ia_class; 56 extern jfieldID ia_addressID; 57 extern jfieldID ia_familyID; 58 extern jfieldID ia_preferIPv6AddressID; 59 60 extern jclass ia4_class; 61 extern jmethodID ia4_ctrID; 62 63 /* NetworkInterface fields */ 64 extern jclass ni_class; 65 extern jfieldID ni_nameID; 66 extern jfieldID ni_indexID; 67 extern jfieldID ni_addrsID; 68 extern jfieldID ni_descID; 69 extern jmethodID ni_ctrID; 70 71 /* PlainSocketImpl fields */ 72 extern jfieldID psi_timeoutID; 73 extern jfieldID psi_fdID; 74 extern jfieldID psi_addressID; 75 extern jfieldID psi_portID; 76 extern jfieldID psi_localportID; 77 78 /* DatagramPacket fields */ 79 extern jfieldID dp_addressID; 80 extern jfieldID dp_portID; 81 extern jfieldID dp_bufID; 82 extern jfieldID dp_offsetID; 83 extern jfieldID dp_lengthID; 84 extern jfieldID dp_bufLengthID; 85 86 /* Inet6Address fields */ 87 extern jclass ia6_class; 88 extern jfieldID ia6_ipaddressID; 89 extern jfieldID ia6_scopeidID; 90 extern jfieldID ia6_cachedscopeidID; 91 extern jfieldID ia6_scopeidsetID; 92 extern jfieldID ia6_scopeifnameID; 93 extern jfieldID ia6_scopeifnamesetID; 94 extern jmethodID ia6_ctrID; 95 96 /************************************************************************ 97 * Utilities 98 */ 99 JNIEXPORT void JNICALL Java_java_net_InetAddress_init(JNIEnv *env, jclass cls); 100 JNIEXPORT void JNICALL Java_java_net_Inet4Address_init(JNIEnv *env, jclass cls); 101 JNIEXPORT void JNICALL Java_java_net_Inet6Address_init(JNIEnv *env, jclass cls); 102 JNIEXPORT void JNICALL Java_java_net_NetworkInterface_init(JNIEnv *env, jclass cls); 103 104 JNIEXPORT void JNICALL NET_ThrowNew(JNIEnv *env, int errorNum, char *msg); 105 int NET_GetError(); 106 107 void NET_ThrowCurrent(JNIEnv *env, char *msg); 108 109 jfieldID NET_GetFileDescriptorID(JNIEnv *env); 110 111 JNIEXPORT jint JNICALL ipv6_available() ; 112 113 void 114 NET_AllocSockaddr(struct sockaddr **him, int *len); 115 116 JNIEXPORT int JNICALL 117 NET_InetAddressToSockaddr(JNIEnv *env, jobject iaObj, int port, struct sockaddr *him, int *len, jboolean v4MappedAddress); 118 119 JNIEXPORT jobject JNICALL 120 NET_SockaddrToInetAddress(JNIEnv *env, struct sockaddr *him, int *port); 121 122 void initLocalAddrTable (); 123 124 void 125 NET_SetTrafficClass(struct sockaddr *him, int trafficClass); 126 127 JNIEXPORT jint JNICALL 128 NET_GetPortFromSockaddr(struct sockaddr *him); 129 130 JNIEXPORT jint JNICALL 131 NET_SockaddrEqualsInetAddress(JNIEnv *env,struct sockaddr *him, jobject iaObj); 132 133 int 134 NET_IsIPv4Mapped(jbyte* caddr); 135 136 int 137 NET_IPv4MappedToIPv4(jbyte* caddr); 138 139 int 140 NET_IsEqual(jbyte* caddr1, jbyte* caddr2); 141 142 /* Socket operations 143 * 144 * These work just like the JVM_* procedures, except that they may do some 145 * platform-specific pre/post processing of the arguments and/or results. 146 */ 147 148 JNIEXPORT int JNICALL 149 NET_GetSockOpt(int fd, int level, int opt, void *result, int *len); 150 151 JNIEXPORT int JNICALL 152 NET_SetSockOpt(int fd, int level, int opt, const void *arg, int len); 153 154 JNIEXPORT int JNICALL 155 NET_Bind(int fd, struct sockaddr *him, int len); 156 157 JNIEXPORT int JNICALL 158 NET_MapSocketOption(jint cmd, int *level, int *optname); 159 160 JNIEXPORT int JNICALL 161 NET_MapSocketOptionV6(jint cmd, int *level, int *optname); 162 163 int getScopeID (struct sockaddr *); 164 165 int cmpScopeID (unsigned int, struct sockaddr *); 166 167 unsigned short in_cksum(unsigned short *addr, int len); 168 #endif /* NET_UTILS_H */ --- EOF ---