| /* |
| * Copyright (c) 1997, 2016, 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. |
| */ |
| |
| #ifndef NET_UTILS_H |
| #define NET_UTILS_H |
| |
| #include "jvm.h" |
| #include "jni_util.h" |
| #include "net_util_md.h" |
| |
| /************************************************************************ |
| * Macros and misc constants |
| */ |
| |
| #define MAX_PACKET_LEN 65536 |
| |
| #define NET_WAIT_READ 0x01 |
| #define NET_WAIT_WRITE 0x02 |
| #define NET_WAIT_CONNECT 0x04 |
| |
| /************************************************************************ |
| * Cached field IDs |
| * |
| * The naming convention for field IDs is |
| * <class abbrv>_<fieldName>ID |
| * i.e. psi_timeoutID is PlainSocketImpl's timeout field's ID. |
| */ |
| extern jclass ia_class; |
| extern jfieldID iac_addressID; |
| extern jfieldID iac_familyID; |
| extern jfieldID iac_hostNameID; |
| extern jfieldID iac_origHostNameID; |
| extern jfieldID ia_preferIPv6AddressID; |
| |
| JNIEXPORT void JNICALL initInetAddressIDs(JNIEnv *env); |
| |
| /** (Inet6Address accessors) |
| * set_ methods return JNI_TRUE on success JNI_FALSE on error |
| * get_ methods that return int/boolean, return -1 on error |
| * get_ methods that return objects return NULL on error. |
| */ |
| extern jobject getInet6Address_scopeifname(JNIEnv *env, jobject ia6Obj); |
| extern jboolean setInet6Address_scopeifname(JNIEnv *env, jobject ia6Obj, jobject scopeifname); |
| extern jboolean getInet6Address_scopeid_set(JNIEnv *env, jobject ia6Obj); |
| extern unsigned int getInet6Address_scopeid(JNIEnv *env, jobject ia6Obj); |
| extern jboolean setInet6Address_scopeid(JNIEnv *env, jobject ia6Obj, int scopeid); |
| extern jboolean getInet6Address_ipaddress(JNIEnv *env, jobject ia6Obj, char *dest); |
| extern jboolean setInet6Address_ipaddress(JNIEnv *env, jobject ia6Obj, char *address); |
| |
| extern void setInetAddress_addr(JNIEnv *env, jobject iaObj, int address); |
| extern void setInetAddress_family(JNIEnv *env, jobject iaObj, int family); |
| extern void setInetAddress_hostName(JNIEnv *env, jobject iaObj, jobject h); |
| extern int getInetAddress_addr(JNIEnv *env, jobject iaObj); |
| extern int getInetAddress_family(JNIEnv *env, jobject iaObj); |
| extern jobject getInetAddress_hostName(JNIEnv *env, jobject iaObj); |
| |
| extern jclass ia4_class; |
| extern jmethodID ia4_ctrID; |
| |
| /* NetworkInterface fields */ |
| extern jclass ni_class; |
| extern jfieldID ni_nameID; |
| extern jfieldID ni_indexID; |
| extern jfieldID ni_addrsID; |
| extern jfieldID ni_descID; |
| extern jmethodID ni_ctrID; |
| |
| /* PlainSocketImpl fields */ |
| extern jfieldID psi_timeoutID; |
| extern jfieldID psi_fdID; |
| extern jfieldID psi_addressID; |
| extern jfieldID psi_portID; |
| extern jfieldID psi_localportID; |
| |
| /* DatagramPacket fields */ |
| extern jfieldID dp_addressID; |
| extern jfieldID dp_portID; |
| extern jfieldID dp_bufID; |
| extern jfieldID dp_offsetID; |
| extern jfieldID dp_lengthID; |
| extern jfieldID dp_bufLengthID; |
| |
| /* Inet6Address fields */ |
| extern jclass ia6_class; |
| extern jfieldID ia6_holder6ID; |
| extern jfieldID ia6_ipaddressID; |
| extern jfieldID ia6_scopeidID; |
| extern jfieldID ia6_cachedscopeidID; |
| extern jfieldID ia6_scopeidsetID; |
| extern jfieldID ia6_scopeifnameID; |
| extern jmethodID ia6_ctrID; |
| |
| /************************************************************************ |
| * Utilities |
| */ |
| JNIEXPORT void JNICALL Java_java_net_InetAddress_init(JNIEnv *env, jclass cls); |
| JNIEXPORT void JNICALL Java_java_net_Inet4Address_init(JNIEnv *env, jclass cls); |
| JNIEXPORT void JNICALL Java_java_net_Inet6Address_init(JNIEnv *env, jclass cls); |
| JNIEXPORT void JNICALL Java_java_net_NetworkInterface_init(JNIEnv *env, jclass cls); |
| |
| JNIEXPORT void JNICALL NET_ThrowNew(JNIEnv *env, int errorNum, char *msg); |
| |
| int NET_GetError(); |
| |
| void NET_ThrowCurrent(JNIEnv *env, char *msg); |
| |
| jfieldID NET_GetFileDescriptorID(JNIEnv *env); |
| |
| JNIEXPORT jint JNICALL ipv6_available(); |
| |
| JNIEXPORT jint JNICALL reuseport_available(); |
| |
| /** |
| * This function will fill a SOCKETADDRESS structure from an InetAddress |
| * object. |
| * |
| * The parameter 'sa' must point to valid storage of size |
| * 'sizeof(SOCKETADDRESS)'. |
| * |
| * The parameter 'len' is a pointer to an int and is used for returning |
| * the actual sockaddr length, e.g. 'sizeof(struct sockaddr_in)' or |
| * 'sizeof(struct sockaddr_in6)'. |
| * |
| * If the type of the InetAddress object is IPv6, the function will fill a |
| * sockaddr_in6 structure. IPv6 must be available in that case, otherwise an |
| * exception is thrown. |
| * In the case of an IPv4 InetAddress, when IPv6 is available and |
| * v4MappedAddress is TRUE, this method will fill a sockaddr_in6 structure |
| * containing an IPv4 mapped IPv6 address. Otherwise a sockaddr_in |
| * structure will be filled. |
| */ |
| JNIEXPORT int JNICALL |
| NET_InetAddressToSockaddr(JNIEnv *env, jobject iaObj, int port, |
| SOCKETADDRESS *sa, int *len, |
| jboolean v4MappedAddress); |
| |
| JNIEXPORT jobject JNICALL |
| NET_SockaddrToInetAddress(JNIEnv *env, SOCKETADDRESS *sa, int *port); |
| |
| void platformInit(); |
| |
| void parseExclusiveBindProperty(JNIEnv *env); |
| |
| JNIEXPORT jint JNICALL NET_GetPortFromSockaddr(SOCKETADDRESS *sa); |
| |
| JNIEXPORT jboolean JNICALL |
| NET_SockaddrEqualsInetAddress(JNIEnv *env, SOCKETADDRESS *sa, jobject iaObj); |
| |
| int NET_IsIPv4Mapped(jbyte* caddr); |
| |
| int NET_IPv4MappedToIPv4(jbyte* caddr); |
| |
| int NET_IsEqual(jbyte* caddr1, jbyte* caddr2); |
| |
| int NET_IsZeroAddr(jbyte* caddr); |
| |
| /* Socket operations |
| * |
| * These work just like the system calls, except that they may do some |
| * platform-specific pre/post processing of the arguments and/or results. |
| */ |
| |
| JNIEXPORT int JNICALL |
| NET_GetSockOpt(int fd, int level, int opt, void *result, int *len); |
| |
| JNIEXPORT int JNICALL |
| NET_SetSockOpt(int fd, int level, int opt, const void *arg, int len); |
| |
| JNIEXPORT int JNICALL |
| NET_Bind(int fd, SOCKETADDRESS *sa, int len); |
| |
| JNIEXPORT int JNICALL |
| NET_MapSocketOption(jint cmd, int *level, int *optname); |
| |
| JNIEXPORT int JNICALL |
| NET_MapSocketOptionV6(jint cmd, int *level, int *optname); |
| |
| JNIEXPORT jint JNICALL |
| NET_EnableFastTcpLoopback(int fd); |
| |
| unsigned short in_cksum(unsigned short *addr, int len); |
| |
| jint NET_Wait(JNIEnv *env, jint fd, jint flags, jint timeout); |
| |
| #endif /* NET_UTILS_H */ |