1 /*
2 * Copyright (c) 2008, 2019, Oracle and/or its affiliates. All rights reserved.
3 *
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation. Oracle designates this
9 * particular file as subject to the "Classpath" exception as provided
10 * by Oracle in the LICENSE file that accompanied this code.
11 *
12 * This code is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 * version 2 for more details (a copy is included in the LICENSE file that
16 * accompanied this code).
17 *
18 * You should have received a copy of the GNU General Public License version
19 * 2 along with this work; if not, write to the Free Software Foundation,
20 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
21 *
22 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
23 * or visit www.oracle.com if you need additional information or have any
24 * questions.
25 *
26 */
27 @@END_COPYRIGHT@@
28
29 #include <stdio.h>
30 #ifdef _WIN32
31 #include <winsock2.h>
32 #include <ws2tcpip.h>
33 #else
34 #include <sys/types.h>
35 #include <sys/socket.h>
36 #include <netinet/in.h>
37 #include <netinet/tcp.h>
38 #endif
39
40 /* Defines SO_REUSEPORT */
41 #if !defined(SO_REUSEPORT)
42 #ifdef _WIN32
43 #define SO_REUSEPORT 0
44 #elif defined(__linux__)
45 #define SO_REUSEPORT 15
46 #elif defined(__solaris__)
47 #define SO_REUSEPORT 0x100e
48 #elif defined(AIX) || defined(MACOSX)
49 #define SO_REUSEPORT 0x0200
50 #else
51 #define SO_REUSEPORT 0
52 #endif
53 #endif
54
55 /* On Solaris, "sun" is defined as a macro. Undefine to make package
56 declaration valid */
57 #undef sun
58
59 /* To be able to name the Java constants the same as the C constants without
60 having the preprocessor rewrite those identifiers, add PREFIX_ to all
61 identifiers matching a C constant. The PREFIX_ is filtered out in the
62 makefile. */
63
64 @@START_HERE@@
65
66 package sun.nio.ch;
67 import java.net.SocketOption;
68 import java.net.StandardSocketOptions;
69 import java.net.ProtocolFamily;
70 import java.net.StandardProtocolFamily;
71 import java.util.Map;
72 import java.util.HashMap;
73 class SocketOptionRegistry {
74
75 private SocketOptionRegistry() { }
76
77 private static class RegistryKey {
78 private final SocketOption<?> name;
79 private final ProtocolFamily family;
80 RegistryKey(SocketOption<?> name, ProtocolFamily family) {
81 this.name = name;
82 this.family = family;
83 }
84 public int hashCode() {
85 return name.hashCode() + family.hashCode();
86 }
87 public boolean equals(Object ob) {
88 if (ob == null) return false;
89 if (!(ob instanceof RegistryKey)) return false;
90 RegistryKey other = (RegistryKey)ob;
91 if (this.name != other.name) return false;
92 if (this.family != other.family) return false;
93 return true;
94 }
95 }
96
97 private static class LazyInitialization {
98
99 static final Map<RegistryKey,OptionKey> options = options();
100
101 private static Map<RegistryKey,OptionKey> options() {
102 Map<RegistryKey,OptionKey> map =
103 new HashMap<RegistryKey,OptionKey>();
104 map.put(new RegistryKey(StandardSocketOptions.PREFIX_SO_BROADCAST,
105 Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_BROADCAST));
106 map.put(new RegistryKey(StandardSocketOptions.PREFIX_SO_KEEPALIVE,
107 Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_KEEPALIVE));
108 map.put(new RegistryKey(StandardSocketOptions.PREFIX_SO_LINGER,
109 Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_LINGER));
110 map.put(new RegistryKey(StandardSocketOptions.PREFIX_SO_SNDBUF,
111 Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_SNDBUF));
112 map.put(new RegistryKey(StandardSocketOptions.PREFIX_SO_RCVBUF,
113 Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_RCVBUF));
114 map.put(new RegistryKey(StandardSocketOptions.PREFIX_SO_REUSEADDR,
115 Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_REUSEADDR));
116 map.put(new RegistryKey(StandardSocketOptions.PREFIX_SO_REUSEPORT,
117 Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_REUSEPORT));
118 // IPPROTO_TCP is 6
119 map.put(new RegistryKey(StandardSocketOptions.PREFIX_TCP_NODELAY,
120 Net.UNSPEC), new OptionKey(6, TCP_NODELAY));
121
122 // IPPROTO_IP is 0
123 map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_TOS,
124 StandardProtocolFamily.INET), new OptionKey(0, IP_TOS));
125 map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_MULTICAST_IF,
126 StandardProtocolFamily.INET), new OptionKey(0, IP_MULTICAST_IF));
127 map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_MULTICAST_TTL,
128 StandardProtocolFamily.INET), new OptionKey(0, IP_MULTICAST_TTL));
129 map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_MULTICAST_LOOP,
130 StandardProtocolFamily.INET), new OptionKey(0, IP_MULTICAST_LOOP));
131
132 #ifdef AF_INET6
133 // IPPROTO_IPV6 is 41
134 map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_TOS,
135 StandardProtocolFamily.INET6), new OptionKey(41, IPV6_TCLASS));
136 map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_MULTICAST_IF,
137 StandardProtocolFamily.INET6), new OptionKey(41, IPV6_MULTICAST_IF));
138 map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_MULTICAST_TTL,
139 StandardProtocolFamily.INET6), new OptionKey(41, IPV6_MULTICAST_HOPS));
140 map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_MULTICAST_LOOP,
141 StandardProtocolFamily.INET6), new OptionKey(41, IPV6_MULTICAST_LOOP));
142 #endif
143
144 map.put(new RegistryKey(ExtendedSocketOption.PREFIX_SO_OOBINLINE,
145 Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_OOBINLINE));
146 return map;
147 }
148 }
149
150 public static OptionKey findOption(SocketOption<?> name, ProtocolFamily family) {
151 RegistryKey key = new RegistryKey(name, family);
152 return LazyInitialization.options.get(key);
153 }
154 }