1 /*
2 * Copyright (c) 2008, 2020, 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(AIX) || defined(MACOSX)
47 #define SO_REUSEPORT 0x0200
48 #else
49 #define SO_REUSEPORT 0
50 #endif
51 #endif
52
53 /* To be able to name the Java constants the same as the C constants without
54 having the preprocessor rewrite those identifiers, add PREFIX_ to all
55 identifiers matching a C constant. The PREFIX_ is filtered out in the
56 makefile. */
57
58 @@START_HERE@@
59
60 package sun.nio.ch;
61 import java.net.SocketOption;
62 import java.net.StandardSocketOptions;
63 import java.net.ProtocolFamily;
64 import java.net.StandardProtocolFamily;
65 import java.util.Map;
66 import java.util.HashMap;
67 class SocketOptionRegistry {
68
69 private SocketOptionRegistry() { }
70
71 private static class RegistryKey {
72 private final SocketOption<?> name;
73 private final ProtocolFamily family;
74 RegistryKey(SocketOption<?> name, ProtocolFamily family) {
75 this.name = name;
76 this.family = family;
77 }
78 public int hashCode() {
79 return name.hashCode() + family.hashCode();
80 }
81 public boolean equals(Object ob) {
82 if (ob == null) return false;
83 if (!(ob instanceof RegistryKey)) return false;
84 RegistryKey other = (RegistryKey)ob;
85 if (this.name != other.name) return false;
86 if (this.family != other.family) return false;
87 return true;
88 }
89 }
90
91 private static class LazyInitialization {
92
93 static final Map<RegistryKey,OptionKey> options = options();
94
95 private static Map<RegistryKey,OptionKey> options() {
96 Map<RegistryKey,OptionKey> map =
97 new HashMap<RegistryKey,OptionKey>();
98 map.put(new RegistryKey(StandardSocketOptions.PREFIX_SO_BROADCAST,
99 Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_BROADCAST));
100 map.put(new RegistryKey(StandardSocketOptions.PREFIX_SO_KEEPALIVE,
101 Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_KEEPALIVE));
102 map.put(new RegistryKey(StandardSocketOptions.PREFIX_SO_LINGER,
103 Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_LINGER));
104 map.put(new RegistryKey(StandardSocketOptions.PREFIX_SO_SNDBUF,
105 Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_SNDBUF));
106 map.put(new RegistryKey(StandardSocketOptions.PREFIX_SO_RCVBUF,
107 Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_RCVBUF));
108 map.put(new RegistryKey(StandardSocketOptions.PREFIX_SO_REUSEADDR,
109 Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_REUSEADDR));
110 map.put(new RegistryKey(StandardSocketOptions.PREFIX_SO_REUSEPORT,
111 Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_REUSEPORT));
112 // IPPROTO_TCP is 6
113 map.put(new RegistryKey(StandardSocketOptions.PREFIX_TCP_NODELAY,
114 Net.UNSPEC), new OptionKey(6, TCP_NODELAY));
115
116 // IPPROTO_IP is 0
117 map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_TOS,
118 StandardProtocolFamily.INET), new OptionKey(0, IP_TOS));
119 map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_MULTICAST_IF,
120 StandardProtocolFamily.INET), new OptionKey(0, IP_MULTICAST_IF));
121 map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_MULTICAST_TTL,
122 StandardProtocolFamily.INET), new OptionKey(0, IP_MULTICAST_TTL));
123 map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_MULTICAST_LOOP,
124 StandardProtocolFamily.INET), new OptionKey(0, IP_MULTICAST_LOOP));
125
126 #ifdef AF_INET6
127 // IPPROTO_IPV6 is 41
128 map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_TOS,
129 StandardProtocolFamily.INET6), new OptionKey(41, IPV6_TCLASS));
130 map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_MULTICAST_IF,
131 StandardProtocolFamily.INET6), new OptionKey(41, IPV6_MULTICAST_IF));
132 map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_MULTICAST_TTL,
133 StandardProtocolFamily.INET6), new OptionKey(41, IPV6_MULTICAST_HOPS));
134 map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_MULTICAST_LOOP,
135 StandardProtocolFamily.INET6), new OptionKey(41, IPV6_MULTICAST_LOOP));
136 #endif
137
138 map.put(new RegistryKey(ExtendedSocketOption.PREFIX_SO_OOBINLINE,
139 Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_OOBINLINE));
140 return map;
141 }
142 }
143
144 public static OptionKey findOption(SocketOption<?> name, ProtocolFamily family) {
145 RegistryKey key = new RegistryKey(name, family);
146 return LazyInitialization.options.get(key);
147 }
148 }