/* * Copyright (c) 1997, 2018, 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 #include #include #include #include /* used to disable connection reset messages on Windows XP */ #ifndef SIO_UDP_CONNRESET #define SIO_UDP_CONNRESET _WSAIOW(IOC_VENDOR,12) #endif #ifndef IN6_IS_ADDR_ANY #define IN6_IS_ADDR_ANY(a) \ (((a)->s6_words[0] == 0) && ((a)->s6_words[1] == 0) && \ ((a)->s6_words[2] == 0) && ((a)->s6_words[3] == 0) && \ ((a)->s6_words[4] == 0) && ((a)->s6_words[5] == 0) && \ ((a)->s6_words[6] == 0) && ((a)->s6_words[7] == 0)) #endif #ifndef IPV6_V6ONLY #define IPV6_V6ONLY 27 /* Treat wildcard bind as AF_INET6-only. */ #endif #define MAX_BUFFER_LEN 2048 #define MAX_HEAP_BUFFER_LEN 65536 /* true if SO_RCVTIMEO is supported by underlying provider */ extern jboolean isRcvTimeoutSupported; void NET_ThrowCurrent(JNIEnv *env, char *msg); typedef union { struct sockaddr sa; struct sockaddr_in sa4; struct sockaddr_in6 sa6; } SOCKETADDRESS; /* * passed to NET_BindV6. Both ipv4_fd and ipv6_fd must be created and unbound * sockets. On return they may refer to different sockets. */ struct ipv6bind { SOCKETADDRESS *addr; SOCKET ipv4_fd; SOCKET ipv6_fd; }; #define SOCKETADDRESS_COPY(DST,SRC) { \ if ((SRC)->sa_family == AF_INET6) { \ memcpy ((DST), (SRC), sizeof (struct sockaddr_in6)); \ } else { \ memcpy ((DST), (SRC), sizeof (struct sockaddr_in)); \ } \ } #define SET_PORT(X,Y) { \ if ((X)->sa.sa_family == AF_INET) { \ (X)->sa4.sin_port = (Y); \ } else { \ (X)->sa6.sin6_port = (Y); \ } \ } #define GET_PORT(X) ((X)->sa.sa_family == AF_INET ? (X)->sa4.sin_port : (X)->sa6.sin6_port) /** * With dual socket implementation the * IPv4 addresseses might be mapped as IPv6. * The IPv4 loopback adapter address ranges (127.0.0.0 through 127.255.255.255) will * be mapped as the following IPv6 ::ffff:127.0.0.0 through ::ffff:127.255.255.255. * For example, this is done by NET_InetAddressToSockaddr. */ #define IN6_IS_ADDR_V4MAPPED_LOOPBACK(x) ( \ (((x)->s6_words[0] == 0) && \ ((x)->s6_words[1] == 0) && \ ((x)->s6_words[2] == 0) && \ ((x)->s6_words[3] == 0) && \ ((x)->s6_words[4] == 0) && \ ((x)->s6_words[5] == 0xFFFF) && \ (((x)->s6_words[6] & 0x00FF) == 0x007F)) \ ) /** * Check for IPv4 loopback adapter address ranges (127.0.0.0 through 127.255.255.255) */ #define IN4_IS_ADDR_NETLONG_LOOPBACK(l) ( \ ((l & 0xFF000000) == 0x7F000000) \ ) #define IS_LOOPBACK_ADDRESS(x) ( \ ((x)->sa.sa_family == AF_INET) ? \ (IN4_IS_ADDR_NETLONG_LOOPBACK(ntohl((x)->sa4.sin_addr.s_addr))) : \ ((IN6_IS_ADDR_LOOPBACK(&(x)->sa6.sin6_addr)) || \ (IN6_IS_ADDR_V4MAPPED_LOOPBACK(&(x)->sa6.sin6_addr))) \ ) JNIEXPORT int JNICALL NET_SocketClose(int fd); JNIEXPORT int JNICALL NET_Timeout(int fd, long timeout); int NET_Socket(int domain, int type, int protocol); void NET_ThrowByNameWithLastError(JNIEnv *env, const char *name, const char *defaultDetail); /* * differs from NET_Timeout() as follows: * * If timeout = -1, it blocks forever. * * returns 1 or 2 depending if only one or both sockets * fire at same time. * * *fdret is (one of) the active fds. If both sockets * fire at same time, *fd == fd always. */ JNIEXPORT int JNICALL NET_Timeout2(int fd, int fd1, long timeout, int *fdret); JNIEXPORT int JNICALL NET_BindV6(struct ipv6bind *b, jboolean exclBind); JNIEXPORT int JNICALL NET_WinBind(int s, SOCKETADDRESS *sa, int len, jboolean exclBind); JNIEXPORT jint JNICALL NET_EnableFastTcpLoopbackConnect(int fd); /* XP versions of the native routines */ JNIEXPORT jobject JNICALL Java_java_net_NetworkInterface_getByName0_XP (JNIEnv *env, jclass cls, jstring name); JNIEXPORT jobject JNICALL Java_java_net_NetworkInterface_getByIndex0_XP (JNIEnv *env, jclass cls, jint index); JNIEXPORT jobject JNICALL Java_java_net_NetworkInterface_getByInetAddress0_XP (JNIEnv *env, jclass cls, jobject iaObj); JNIEXPORT jobjectArray JNICALL Java_java_net_NetworkInterface_getAll_XP (JNIEnv *env, jclass cls); JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_supportsMulticast0_XP (JNIEnv *env, jclass cls, jstring name, jint index); JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_isUp0_XP (JNIEnv *env, jclass cls, jstring name, jint index); JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_isP2P0_XP (JNIEnv *env, jclass cls, jstring name, jint index); JNIEXPORT jbyteArray JNICALL Java_java_net_NetworkInterface_getMacAddr0_XP (JNIEnv *env, jclass cls, jstring name, jint index); JNIEXPORT jint JNICALL Java_java_net_NetworkInterface_getMTU0_XP (JNIEnv *env, jclass class, jstring name, jint index); JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_isLoopback0_XP (JNIEnv *env, jclass cls, jstring name, jint index);