1 /* 2 * Copyright (c) 1997, 2018, Oracle and/or its affiliates. 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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 #ifndef NET_UTILS_MD_H 27 #define NET_UTILS_MD_H 28 29 #include <netdb.h> 30 #include <poll.h> 31 #include <sys/socket.h> 32 #include <netinet/in.h> 33 34 /************************************************************************ 35 * Macros and constants 36 */ 37 38 #define NET_NSEC_PER_MSEC 1000000 39 #define NET_NSEC_PER_SEC 1000000000 40 #define NET_NSEC_PER_USEC 1000 41 42 /* in case NI_MAXHOST is not defined in netdb.h */ 43 #ifndef NI_MAXHOST 44 #define NI_MAXHOST 1025 45 #endif 46 47 /* Defines SO_REUSEPORT */ 48 #ifndef SO_REUSEPORT 49 #ifdef __linux__ 50 #define SO_REUSEPORT 15 51 #elif defined(__solaris__) 52 #define SO_REUSEPORT 0x100e 53 #elif defined(AIX) || defined(MACOSX) 54 #define SO_REUSEPORT 0x0200 55 #else 56 #define SO_REUSEPORT 0 57 #endif 58 #endif 59 60 /* 61 * On 64-bit JDKs we use a much larger stack and heap buffer. 62 */ 63 #ifdef _LP64 64 #define MAX_BUFFER_LEN 65536 65 #define MAX_HEAP_BUFFER_LEN 131072 66 #else 67 #define MAX_BUFFER_LEN 8192 68 #define MAX_HEAP_BUFFER_LEN 65536 69 #endif 70 71 typedef union { 72 struct sockaddr sa; 73 struct sockaddr_in sa4; 74 struct sockaddr_in6 sa6; 75 } SOCKETADDRESS; 76 77 /************************************************************************ 78 * Functions 79 */ 80 81 int NET_Timeout(JNIEnv *env, int s, long timeout, jlong nanoTimeStamp); 82 int NET_Read(int s, void* buf, size_t len); 83 int NET_NonBlockingRead(int s, void* buf, size_t len); 84 int NET_RecvFrom(int s, void *buf, int len, unsigned int flags, 85 struct sockaddr *from, socklen_t *fromlen); 86 int NET_ReadV(int s, const struct iovec * vector, int count); 87 int NET_Send(int s, void *msg, int len, unsigned int flags); 88 int NET_SendTo(int s, const void *msg, int len, unsigned int 89 flags, const struct sockaddr *to, int tolen); 90 int NET_Writev(int s, const struct iovec * vector, int count); 91 int NET_Connect(int s, struct sockaddr *addr, int addrlen); 92 int NET_Accept(int s, struct sockaddr *addr, socklen_t *addrlen); 93 int NET_SocketClose(int s); 94 int NET_Dup2(int oldfd, int newfd); 95 int NET_Poll(struct pollfd *ufds, unsigned int nfds, int timeout); 96 int NET_SocketAvailable(int s, jint *pbytes); 97 98 void NET_ThrowUnknownHostExceptionWithGaiError(JNIEnv *env, 99 const char* hostname, 100 int gai_error); 101 void NET_ThrowByNameWithLastError(JNIEnv *env, const char *name, 102 const char *defaultDetail); 103 void NET_SetTrafficClass(SOCKETADDRESS *sa, int trafficClass); 104 105 #ifdef __linux__ 106 int kernelIsV24(); 107 int getDefaultIPv6Interface(struct in6_addr *target_addr); 108 #endif 109 110 #ifdef __solaris__ 111 int net_getParam(char *driver, char *param); 112 #endif 113 114 #endif /* NET_UTILS_MD_H */ 115