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 #include <winsock2.h>
26 #include <WS2tcpip.h>
27 #include <iphlpapi.h>
28 #include <icmpapi.h>
29
30 /* used to disable connection reset messages on Windows XP */
31 #ifndef SIO_UDP_CONNRESET
32 #define SIO_UDP_CONNRESET _WSAIOW(IOC_VENDOR,12)
33 #endif
34
35 #ifndef IN6_IS_ADDR_ANY
36 #define IN6_IS_ADDR_ANY(a) \
37 (((a)->s6_words[0] == 0) && ((a)->s6_words[1] == 0) && \
38 ((a)->s6_words[2] == 0) && ((a)->s6_words[3] == 0) && \
39 ((a)->s6_words[4] == 0) && ((a)->s6_words[5] == 0) && \
40 ((a)->s6_words[6] == 0) && ((a)->s6_words[7] == 0))
41 #endif
42
43 #ifndef IPV6_V6ONLY
44 #define IPV6_V6ONLY 27 /* Treat wildcard bind as AF_INET6-only. */
45 #endif
46
47 #define MAX_BUFFER_LEN 2048
48 #define MAX_HEAP_BUFFER_LEN 65536
49
50 /* true if SO_RCVTIMEO is supported by underlying provider */
51 extern jboolean isRcvTimeoutSupported;
52
53 void NET_ThrowCurrent(JNIEnv *env, char *msg);
54
55 typedef union {
56 struct sockaddr sa;
57 struct sockaddr_in sa4;
58 struct sockaddr_in6 sa6;
59 } SOCKETADDRESS;
60
61 /*
62 * passed to NET_BindV6. Both ipv4_fd and ipv6_fd must be created and unbound
63 * sockets. On return they may refer to different sockets.
64 */
65 struct ipv6bind {
66 SOCKETADDRESS *addr;
67 SOCKET ipv4_fd;
68 SOCKET ipv6_fd;
69 };
70
71 #define SOCKETADDRESS_COPY(DST,SRC) { \
72 if ((SRC)->sa_family == AF_INET6) { \
73 memcpy ((DST), (SRC), sizeof (struct sockaddr_in6)); \
74 } else { \
75 memcpy ((DST), (SRC), sizeof (struct sockaddr_in)); \
76 } \
77 }
78
79 #define SET_PORT(X,Y) { \
80 if ((X)->sa.sa_family == AF_INET) { \
81 (X)->sa4.sin_port = (Y); \
82 } else { \
83 (X)->sa6.sin6_port = (Y); \
84 } \
85 }
86
87 #define GET_PORT(X) ((X)->sa.sa_family == AF_INET ? (X)->sa4.sin_port : (X)->sa6.sin6_port)
88
89 #define IS_LOOPBACK_ADDRESS(x) ( \
90 ((x)->sa.sa_family == AF_INET) ? \
91 (ntohl((x)->sa4.sin_addr.s_addr) == INADDR_LOOPBACK) : \
92 (IN6ADDR_ISLOOPBACK(x)) \
93 )
94
95 JNIEXPORT int JNICALL NET_SocketClose(int fd);
96
97 JNIEXPORT int JNICALL NET_Timeout(int fd, long timeout);
98
99 int NET_Socket(int domain, int type, int protocol);
100
101 void NET_ThrowByNameWithLastError(JNIEnv *env, const char *name,
102 const char *defaultDetail);
103
104 /*
105 * differs from NET_Timeout() as follows:
106 *
107 * If timeout = -1, it blocks forever.
108 *
109 * returns 1 or 2 depending if only one or both sockets
110 * fire at same time.
111 *
112 * *fdret is (one of) the active fds. If both sockets
113 * fire at same time, *fd == fd always.
114 */
115 JNIEXPORT int JNICALL NET_Timeout2(int fd, int fd1, long timeout, int *fdret);
116
117 JNIEXPORT int JNICALL NET_BindV6(struct ipv6bind *b, jboolean exclBind);
118
119 JNIEXPORT int JNICALL NET_WinBind(int s, SOCKETADDRESS *sa, int len,
120 jboolean exclBind);
121
122 /* XP versions of the native routines */
123
124 JNIEXPORT jobject JNICALL Java_java_net_NetworkInterface_getByName0_XP
125 (JNIEnv *env, jclass cls, jstring name);
126
127 JNIEXPORT jobject JNICALL Java_java_net_NetworkInterface_getByIndex0_XP
128 (JNIEnv *env, jclass cls, jint index);
129
130 JNIEXPORT jobject JNICALL Java_java_net_NetworkInterface_getByInetAddress0_XP
131 (JNIEnv *env, jclass cls, jobject iaObj);
132
133 JNIEXPORT jobjectArray JNICALL Java_java_net_NetworkInterface_getAll_XP
134 (JNIEnv *env, jclass cls);
135
136 JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_supportsMulticast0_XP
137 (JNIEnv *env, jclass cls, jstring name, jint index);
138
139 JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_isUp0_XP
140 (JNIEnv *env, jclass cls, jstring name, jint index);
141
142 JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_isP2P0_XP
143 (JNIEnv *env, jclass cls, jstring name, jint index);
144
145 JNIEXPORT jbyteArray JNICALL Java_java_net_NetworkInterface_getMacAddr0_XP
146 (JNIEnv *env, jclass cls, jstring name, jint index);
147
148 JNIEXPORT jint JNICALL Java_java_net_NetworkInterface_getMTU0_XP
149 (JNIEnv *env, jclass class, jstring name, jint index);
150
151 JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_isLoopback0_XP
152 (JNIEnv *env, jclass cls, jstring name, jint index);