1/*
2 * Copyright (c) 1997, 2017, 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
33/************************************************************************
34 * Macros and constants
35 */
36
37#define NET_NSEC_PER_MSEC 1000000
38#define NET_NSEC_PER_SEC  1000000000
39#define NET_NSEC_PER_USEC 1000
40
41/* Defines SO_REUSEPORT */
42#ifndef SO_REUSEPORT
43#ifdef __linux__
44#define SO_REUSEPORT 15
45#elif __solaris__
46#define SO_REUSEPORT 0x100e
47#elif defined(AIX) || defined(MACOSX)
48#define SO_REUSEPORT 0x0200
49#else
50#define SO_REUSEPORT 0
51#endif
52#endif
53
54/*
55 * On 64-bit JDKs we use a much larger stack and heap buffer.
56 */
57#ifdef _LP64
58#define MAX_BUFFER_LEN 65536
59#define MAX_HEAP_BUFFER_LEN 131072
60#else
61#define MAX_BUFFER_LEN 8192
62#define MAX_HEAP_BUFFER_LEN 65536
63#endif
64
65typedef union {
66    struct sockaddr     sa;
67    struct sockaddr_in  sa4;
68    struct sockaddr_in6 sa6;
69} SOCKETADDRESS;
70
71/************************************************************************
72 * Functions
73 */
74
75int NET_Timeout(JNIEnv *env, int s, long timeout, jlong  nanoTimeStamp);
76int NET_Read(int s, void* buf, size_t len);
77int NET_NonBlockingRead(int s, void* buf, size_t len);
78int NET_RecvFrom(int s, void *buf, int len, unsigned int flags,
79                 struct sockaddr *from, socklen_t *fromlen);
80int NET_ReadV(int s, const struct iovec * vector, int count);
81int NET_Send(int s, void *msg, int len, unsigned int flags);
82int NET_SendTo(int s, const void *msg, int len,  unsigned  int
83               flags, const struct sockaddr *to, int tolen);
84int NET_Writev(int s, const struct iovec * vector, int count);
85int NET_Connect(int s, struct sockaddr *addr, int addrlen);
86int NET_Accept(int s, struct sockaddr *addr, socklen_t *addrlen);
87int NET_SocketClose(int s);
88int NET_Dup2(int oldfd, int newfd);
89int NET_Poll(struct pollfd *ufds, unsigned int nfds, int timeout);
90int NET_SocketAvailable(int s, jint *pbytes);
91
92void NET_ThrowUnknownHostExceptionWithGaiError(JNIEnv *env,
93                                               const char* hostname,
94                                               int gai_error);
95void NET_ThrowByNameWithLastError(JNIEnv *env, const char *name,
96                                  const char *defaultDetail);
97void NET_SetTrafficClass(SOCKETADDRESS *sa, int trafficClass);
98
99#ifdef __linux__
100int kernelIsV24();
101int getDefaultIPv6Interface(struct in6_addr *target_addr);
102#endif
103
104#ifdef __solaris__
105int net_getParam(char *driver, char *param);
106#endif
107
108#endif /* NET_UTILS_MD_H */
109