/*

 * Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

#include <winsock2.h>

#include <WS2tcpip.h>

#include <iphlpapi.h>

#include <icmpapi.h>

/* used to disable connection reset messages on Windows XP */

#ifndef SIO_UDP_CONNRESET

#define SIO_UDP_CONNRESET _WSAIOW(IOC_VENDOR,12)

#endif

#ifndef IN6_IS_ADDR_ANY

#define IN6_IS_ADDR_ANY(a)      \

    (((a)->s6_words[0] == 0) && ((a)->s6_words[1] == 0) &&      \

    ((a)->s6_words[2] == 0) && ((a)->s6_words[3] == 0) &&       \

    ((a)->s6_words[4] == 0) && ((a)->s6_words[5] == 0) &&       \

    ((a)->s6_words[6] == 0) && ((a)->s6_words[7] == 0))

#endif

#ifndef IPV6_V6ONLY

#define IPV6_V6ONLY     27 /* Treat wildcard bind as AF_INET6-only. */

#endif

#define MAX_BUFFER_LEN          2048

#define MAX_HEAP_BUFFER_LEN     65536

/* true if SO_RCVTIMEO is supported by underlying provider */

extern jboolean isRcvTimeoutSupported;

void NET_ThrowCurrent(JNIEnv *env, char *msg);

typedef union {

    struct sockaddr     sa;

    struct sockaddr_in  sa4;

    struct sockaddr_in6 sa6;

} SOCKETADDRESS;

/*

 * passed to NET_BindV6. Both ipv4_fd and ipv6_fd must be created and unbound

 * sockets. On return they may refer to different sockets.

 */

struct ipv6bind {

    SOCKETADDRESS      *addr;

    SOCKET              ipv4_fd;

    SOCKET              ipv6_fd;

};

#define SOCKETADDRESS_COPY(DST,SRC) {                           \

    if ((SRC)->sa_family == AF_INET6) {                         \

        memcpy ((DST), (SRC), sizeof (struct sockaddr_in6));    \

    } else {                                                    \

        memcpy ((DST), (SRC), sizeof (struct sockaddr_in));     \

    }                                                           \

}

#define SET_PORT(X,Y) {                    \

    if ((X)->sa.sa_family == AF_INET) {    \

        (X)->sa4.sin_port = (Y);           \

    } else {                               \

        (X)->sa6.sin6_port = (Y);          \

    }                                      \

}

#define GET_PORT(X) ((X)->sa.sa_family == AF_INET ? (X)->sa4.sin_port : (X)->sa6.sin6_port)

#define IS_LOOPBACK_ADDRESS(x) ( \

    ((x)->sa.sa_family == AF_INET) ? \

        (ntohl((x)->sa4.sin_addr.s_addr) == INADDR_LOOPBACK) : \

        (IN6ADDR_ISLOOPBACK(x)) \

)

JNIEXPORT int JNICALL NET_SocketClose(int fd);

JNIEXPORT int JNICALL NET_Timeout(int fd, long timeout);

int NET_Socket(int domain, int type, int protocol);

void NET_ThrowByNameWithLastError(JNIEnv *env, const char *name,

                                  const char *defaultDetail);

/*

 * differs from NET_Timeout() as follows:

 *

 * If timeout = -1, it blocks forever.

 *

 * returns 1 or 2 depending if only one or both sockets

 * fire at same time.

 *

 * *fdret is (one of) the active fds. If both sockets

 * fire at same time, *fd == fd always.

 */

JNIEXPORT int JNICALL NET_Timeout2(int fd, int fd1, long timeout, int *fdret);

JNIEXPORT int JNICALL NET_BindV6(struct ipv6bind *b, jboolean exclBind);

JNIEXPORT int JNICALL NET_WinBind(int s, SOCKETADDRESS *sa, int len,

                                  jboolean exclBind);

/* XP versions of the native routines */

JNIEXPORT jobject JNICALL Java_java_net_NetworkInterface_getByName0_XP

  (JNIEnv *env, jclass cls, jstring name);

JNIEXPORT jobject JNICALL Java_java_net_NetworkInterface_getByIndex0_XP

  (JNIEnv *env, jclass cls, jint index);

JNIEXPORT jobject JNICALL Java_java_net_NetworkInterface_getByInetAddress0_XP

  (JNIEnv *env, jclass cls, jobject iaObj);

JNIEXPORT jobjectArray JNICALL Java_java_net_NetworkInterface_getAll_XP

  (JNIEnv *env, jclass cls);

JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_supportsMulticast0_XP

  (JNIEnv *env, jclass cls, jstring name, jint index);

JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_isUp0_XP

  (JNIEnv *env, jclass cls, jstring name, jint index);

JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_isP2P0_XP

  (JNIEnv *env, jclass cls, jstring name, jint index);

JNIEXPORT jbyteArray JNICALL Java_java_net_NetworkInterface_getMacAddr0_XP

  (JNIEnv *env, jclass cls, jstring name, jint index);

JNIEXPORT jint JNICALL Java_java_net_NetworkInterface_getMTU0_XP

  (JNIEnv *env, jclass class, jstring name, jint index);

JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_isLoopback0_XP

  (JNIEnv *env, jclass cls, jstring name, jint index);