2
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/*
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* Copyright 2003-2005 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Sun designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Sun in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*/
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#include <stdlib.h>
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#include <windows.h>
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#include <winsock2.h> /* needed for htonl */
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#include <iprtrmib.h>
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#include <assert.h>
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#include "java_net_NetworkInterface.h"
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#include "jni_util.h"
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#include "NetworkInterface.h"
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/*
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* Windows implementation of the java.net.NetworkInterface native methods.
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* This module provides the implementations of getAll, getByName, getByIndex,
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* and getByAddress.
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*/
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extern int enumAddresses_win(JNIEnv *env, netif *netifP, netaddr **netaddrPP);
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/* IP helper library routines */
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int (PASCAL FAR *GetIpAddrTable_fn)();
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int (PASCAL FAR *GetIfTable_fn)();
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int (PASCAL FAR *GetFriendlyIfIndex_fn)();
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int (PASCAL FAR *GetAdaptersAddresses_fn)();
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int (PASCAL FAR *GetAdaptersInfo_fn)();
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int (PASCAL FAR *GetNumberOfInterfaces_fn)();
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#ifdef DEBUG
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void printnif (netif *nif) {
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#ifdef _WIN64
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printf ("nif:0x%I64x name:%s\n", nif,nif->name);
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#else
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printf ("nif:0x%x name:%s\n", nif,nif->name);
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#endif
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if (nif->dNameIsUnicode) {
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printf ("dName:%S index:%d ", nif->displayName,nif->index);
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} else {
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printf ("dName:%s index:%d ", nif->displayName,nif->index);
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}
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printf ("naddrs:%d\n", nif->naddrs);
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}
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void printnifs (netif *netifPP, char *str) {
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netif *nif;
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printf ("%s\n", str);
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for (nif=netifPP; nif!=NULL; nif=nif->next) {
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printnif (nif);
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}
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printf("-----------------\n");
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}
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#endif
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static int bufsize = 1024;
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/*
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* return an array of IP_ADAPTER_ADDRESSES containing one element
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* for each apdapter on the system. Returned in *adapters.
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* Buffer is malloc'd and must be freed (unless error returned)
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*/
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static int getAdapters (JNIEnv *env, IP_ADAPTER_ADDRESSES **adapters) {
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DWORD ret, flags;
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IP_ADAPTER_ADDRESSES *adapterInfo;
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ULONG len;
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adapterInfo = (IP_ADAPTER_ADDRESSES *)malloc (bufsize);
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if (adapterInfo == 0) {
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return -1;
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}
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len = bufsize;
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flags = GAA_FLAG_SKIP_DNS_SERVER;
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flags |= GAA_FLAG_SKIP_MULTICAST;
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flags |= GAA_FLAG_INCLUDE_PREFIX;
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ret = (*GetAdaptersAddresses_fn) (AF_UNSPEC, flags, NULL, adapterInfo, &len);
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if (ret == ERROR_BUFFER_OVERFLOW) {
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adapterInfo = (IP_ADAPTER_ADDRESSES *) realloc (adapterInfo, len);
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if (adapterInfo == 0) {
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return -1;
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}
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bufsize = len;
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ret = (*GetAdaptersAddresses_fn) (AF_UNSPEC, flags, NULL, adapterInfo, &len);
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}
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if (ret != ERROR_SUCCESS) {
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free (adapterInfo);
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JNU_ThrowByName(env, "java/lang/Error",
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"IP Helper Library GetAdaptersAddresses function failed");
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return -1;
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}
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*adapters = adapterInfo;
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return ERROR_SUCCESS;
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}
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/*
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* return an array of IP_ADAPTER_ADDRESSES containing one element
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* for each apdapter on the system. Returned in *adapters.
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* Buffer is malloc'd and must be freed (unless error returned)
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*/
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IP_ADAPTER_ADDRESSES *getAdapter (JNIEnv *env, jint index) {
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DWORD flags, val;
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IP_ADAPTER_ADDRESSES *adapterInfo, *ptr, *ret;
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ULONG len;
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adapterInfo = (IP_ADAPTER_ADDRESSES *)malloc (bufsize);
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if (adapterInfo == 0) {
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JNU_ThrowByName(env, "java/lang/OutOfMemoryError", 0);
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return NULL;
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}
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len = bufsize;
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flags = GAA_FLAG_SKIP_DNS_SERVER;
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flags |= GAA_FLAG_SKIP_MULTICAST;
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flags |= GAA_FLAG_INCLUDE_PREFIX;
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val = (*GetAdaptersAddresses_fn) (AF_UNSPEC, flags, NULL, adapterInfo, &len);
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if (val == ERROR_BUFFER_OVERFLOW) {
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adapterInfo = (IP_ADAPTER_ADDRESSES *) realloc (adapterInfo, len);
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if (adapterInfo == 0) {
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JNU_ThrowByName(env, "java/lang/OutOfMemoryError", 0);
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return NULL;
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}
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bufsize = len;
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val = (*GetAdaptersAddresses_fn) (AF_UNSPEC, flags, NULL, adapterInfo, &len);
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}
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if (val != ERROR_SUCCESS) {
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free (adapterInfo);
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JNU_ThrowByName(env, "java/lang/Error",
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"IP Helper Library GetAdaptersAddresses function failed");
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return NULL;
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}
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ptr = adapterInfo;
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ret = NULL;
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while (ptr != NULL) {
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// IPv4 interface
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if (ptr->Ipv6IfIndex == index) {
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ret = (IP_ADAPTER_ADDRESSES *) malloc(sizeof(IP_ADAPTER_ADDRESSES));
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memcpy(ret, ptr, sizeof(IP_ADAPTER_ADDRESSES));
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}
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ptr=ptr->Next;
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}
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free(adapterInfo);
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return ret;
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}
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static int ipinflen = 2048;
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166 |
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/*
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*/
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int getAllInterfacesAndAddresses (JNIEnv *env, netif **netifPP)
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{
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DWORD ret, numInterfaces;
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IP_ADAPTER_ADDRESSES *ptr, *ptr1, *adapters=0;
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ULONG len=ipinflen, count=0;
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netif *nif=0, *dup_nif, *last=0, *loopif=0;
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netaddr *addr, *addr1;
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int tun=0, net=0;
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*netifPP = 0;
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/*
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* Get the IPv4 interfaces. This information is the same
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* as what previous JDK versions would return.
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*/
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184 |
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ret = enumInterfaces_win (env, netifPP);
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if (ret == -1) {
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return -1;
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} else {
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count = ret;
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}
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191 |
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/* locate the loopback (and the last) interface */
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for (nif=*netifPP, last=nif; nif!=0; nif=nif->next) {
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if (nif->ifType == MIB_IF_TYPE_LOOPBACK) {
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loopif = nif;
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}
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last = nif;
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}
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ret = getAdapters (env, &adapters);
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if (ret != ERROR_SUCCESS) {
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goto err;
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}
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204 |
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/* Now get the IPv6 information. This includes:
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* (a) IPv6 information associated with interfaces already found
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* (b) IPv6 information for IPv6 only interfaces (probably tunnels)
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*
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* For compatibility with previous releases we use the naming
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* information gotten from enumInterfaces_win() for (a) entries
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* However, the index numbers are taken from the new API.
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*
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* The procedure is to go through the list of adapters returned
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* by the new API looking for entries that correspond to IPv4 interfaces
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* already found.
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*/
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217 |
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ptr = adapters;
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while (ptr != NULL) {
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int c;
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netif *nif0;
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if (ptr->IfType == IF_TYPE_SOFTWARE_LOOPBACK && (loopif != NULL)) {
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c = getAddrsFromAdapter(ptr, &loopif->addrs);
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if (c == -1) {
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goto err;
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226 |
}
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loopif->naddrs += c;
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} else {
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int index = ptr->IfIndex;
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if (index != 0) {
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/* This entry is associated with an IPv4 interface */
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for (nif=*netifPP; nif!=0; nif=nif->next) {
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if (nif->index == index) {
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/* found the interface entry
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* set the index to the IPv6 index and add the
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* IPv6 addresses
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237 |
*/
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nif->index = ptr->Ipv6IfIndex;
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c = getAddrsFromAdapter(ptr, &nif->addrs);
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nif->naddrs += c;
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|
241 |
break;
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|
242 |
}
|
|
243 |
}
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244 |
} else {
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/* This entry is IPv6 only */
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char newname [128];
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247 |
int c;
|
|
248 |
|
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249 |
/* Windows allocates duplicate adapter entries
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250 |
* for tunnel interfaces when there are multiple
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251 |
* physical adapters. Need to check
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252 |
* if this is a duplicate (ipv6Index is the same)
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253 |
*/
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254 |
dup_nif = 0;
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for (nif0=*netifPP; nif0!=0; nif0=nif0->next) {
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if (nif0->hasIpv6Address &&
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ptr->Ipv6IfIndex == nif0->ipv6Index) {
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258 |
dup_nif = nif0;
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259 |
break;
|
|
260 |
}
|
|
261 |
}
|
|
262 |
if (dup_nif == 0) {
|
|
263 |
/* new interface */
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264 |
nif = (netif *) calloc (1, sizeof(netif));
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265 |
if (nif == 0) {
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266 |
goto err;
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|
267 |
}
|
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268 |
if (ptr->IfType == IF_TYPE_TUNNEL) {
|
|
269 |
sprintf (newname, "tun%d", tun);
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270 |
tun ++;
|
|
271 |
} else {
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|
272 |
sprintf (newname, "net%d", net);
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|
273 |
net ++;
|
|
274 |
}
|
|
275 |
nif->name = malloc (strlen(newname)+1);
|
|
276 |
nif->displayName = malloc (wcslen(ptr->FriendlyName)*2+2);
|
|
277 |
if (nif->name == 0 || nif->displayName == 0) {
|
|
278 |
goto err;
|
|
279 |
}
|
|
280 |
strcpy (nif->name, newname);
|
|
281 |
wcscpy ((PWCHAR)nif->displayName, ptr->FriendlyName);
|
|
282 |
nif->dNameIsUnicode = TRUE;
|
|
283 |
nif->index = ptr->Ipv6IfIndex;
|
|
284 |
nif->ipv6Index = ptr->Ipv6IfIndex;
|
|
285 |
nif->hasIpv6Address = TRUE;
|
|
286 |
|
|
287 |
last->next = nif;
|
|
288 |
last = nif;
|
|
289 |
count++;
|
|
290 |
c = getAddrsFromAdapter(ptr, &nif->addrs);
|
|
291 |
if (c == -1) {
|
|
292 |
goto err;
|
|
293 |
}
|
|
294 |
nif->naddrs += c;
|
|
295 |
} else {
|
|
296 |
/* add the addresses from this adapter to the
|
|
297 |
* original (dup_nif)
|
|
298 |
*/
|
|
299 |
c = getAddrsFromAdapter(ptr, &dup_nif->addrs);
|
|
300 |
if (c == -1) {
|
|
301 |
goto err;
|
|
302 |
}
|
|
303 |
dup_nif->naddrs += c;
|
|
304 |
}
|
|
305 |
}
|
|
306 |
}
|
|
307 |
ptr=ptr->Next;
|
|
308 |
}
|
|
309 |
|
|
310 |
free (adapters);
|
|
311 |
return count;
|
|
312 |
|
|
313 |
err:
|
|
314 |
if (*netifPP) {
|
|
315 |
free_netif (*netifPP);
|
|
316 |
}
|
|
317 |
if (adapters) {
|
|
318 |
free (adapters);
|
|
319 |
}
|
|
320 |
return -1;
|
|
321 |
}
|
|
322 |
|
|
323 |
/* If *netaddrPP is null, then the addresses are allocated and the beginning
|
|
324 |
* of the allocated chain is returned in *netaddrPP.
|
|
325 |
* If *netaddrPP is not null, then the addresses allocated here are appended
|
|
326 |
* to the existing chain.
|
|
327 |
*
|
|
328 |
* Returns count of addresses or -1 on error.
|
|
329 |
*/
|
|
330 |
|
|
331 |
static int getAddrsFromAdapter(IP_ADAPTER_ADDRESSES *ptr, netaddr **netaddrPP) {
|
|
332 |
LPSOCKADDR sock;
|
|
333 |
int ret, count = 0;
|
|
334 |
netaddr *curr, *start=0, *prev=0;
|
|
335 |
PIP_ADAPTER_UNICAST_ADDRESS uni_addr;
|
|
336 |
PIP_ADAPTER_ANYCAST_ADDRESS any_addr;
|
|
337 |
PIP_ADAPTER_PREFIX prefix;
|
|
338 |
|
|
339 |
/* If chain passed in, find end */
|
|
340 |
if (*netaddrPP != NULL) {
|
|
341 |
for (start=*netaddrPP; start->next!=NULL; start=start->next) {
|
|
342 |
}
|
|
343 |
prev=start;
|
|
344 |
}
|
|
345 |
|
|
346 |
prefix = ptr->FirstPrefix;
|
|
347 |
/* Unicast */
|
|
348 |
uni_addr = ptr->FirstUnicastAddress;
|
|
349 |
while (uni_addr != NULL) {
|
|
350 |
/* address is only usable if dad state is preferred or deprecated */
|
|
351 |
if (uni_addr->DadState == IpDadStateDeprecated ||
|
|
352 |
uni_addr->DadState == IpDadStatePreferred) {
|
|
353 |
curr = (netaddr *)calloc (1, sizeof (netaddr));
|
|
354 |
if (curr == 0) {
|
|
355 |
return -1;
|
|
356 |
}
|
|
357 |
if (start == NULL) {
|
|
358 |
start = curr;
|
|
359 |
}
|
|
360 |
if (prev != NULL) {
|
|
361 |
prev->next = curr;
|
|
362 |
}
|
|
363 |
prev = curr;
|
|
364 |
sock = uni_addr->Address.lpSockaddr;
|
|
365 |
SOCKETADDRESS_COPY (&curr->addr, sock);
|
|
366 |
if (prefix != NULL) {
|
|
367 |
curr->mask = prefix->PrefixLength;
|
|
368 |
if (sock->sa_family == AF_INET) {
|
|
369 |
sock = prefix->Address.lpSockaddr;
|
|
370 |
SOCKETADDRESS_COPY(&curr->brdcast, sock);
|
|
371 |
curr->brdcast.him4.sin_addr.s_addr |= htonl((0xffffffff >> curr->mask));
|
|
372 |
}
|
|
373 |
prefix = prefix->Next;
|
|
374 |
}
|
|
375 |
count ++;
|
|
376 |
}
|
|
377 |
uni_addr = uni_addr->Next;
|
|
378 |
}
|
|
379 |
/* Anycast */
|
|
380 |
any_addr = ptr->FirstAnycastAddress;
|
|
381 |
while (any_addr != NULL) {
|
|
382 |
curr = (netaddr *)calloc (1, sizeof (netaddr));
|
|
383 |
if (curr == 0) {
|
|
384 |
return -1;
|
|
385 |
}
|
|
386 |
if (start == NULL) {
|
|
387 |
start = curr;
|
|
388 |
}
|
|
389 |
if (prev != NULL) {
|
|
390 |
prev->next = curr;
|
|
391 |
}
|
|
392 |
prev = curr;
|
|
393 |
sock = any_addr->Address.lpSockaddr;
|
|
394 |
SOCKETADDRESS_COPY (&curr->addr, sock);
|
|
395 |
count ++;
|
|
396 |
any_addr = any_addr->Next;
|
|
397 |
}
|
|
398 |
if (*netaddrPP == NULL) {
|
|
399 |
*netaddrPP = start;
|
|
400 |
}
|
|
401 |
return count;
|
|
402 |
}
|
|
403 |
|
|
404 |
/*
|
|
405 |
* Create a NetworkInterface object, populate the name and index, and
|
|
406 |
* populate the InetAddress array based on the IP addresses for this
|
|
407 |
* interface.
|
|
408 |
*/
|
|
409 |
static jobject createNetworkInterfaceXP(JNIEnv *env, netif *ifs)
|
|
410 |
{
|
|
411 |
jobject netifObj;
|
|
412 |
jobject name, displayName;
|
|
413 |
jobjectArray addrArr, bindsArr, childArr;
|
|
414 |
netaddr *addrs;
|
|
415 |
jint addr_index;
|
|
416 |
int netaddrCount=ifs->naddrs;
|
|
417 |
netaddr *netaddrP=ifs->addrs;
|
|
418 |
jint bind_index;
|
|
419 |
|
|
420 |
/*
|
|
421 |
* Create a NetworkInterface object and populate it
|
|
422 |
*/
|
|
423 |
netifObj = (*env)->NewObject(env, ni_class, ni_ctor);
|
|
424 |
name = (*env)->NewStringUTF(env, ifs->name);
|
|
425 |
if (ifs->dNameIsUnicode) {
|
|
426 |
displayName = (*env)->NewString(env, (PWCHAR)ifs->displayName, wcslen ((PWCHAR)ifs->displayName));
|
|
427 |
} else {
|
|
428 |
displayName = (*env)->NewStringUTF(env, ifs->displayName);
|
|
429 |
}
|
|
430 |
if (netifObj == NULL || name == NULL || displayName == NULL) {
|
|
431 |
return NULL;
|
|
432 |
}
|
|
433 |
(*env)->SetObjectField(env, netifObj, ni_nameID, name);
|
|
434 |
(*env)->SetObjectField(env, netifObj, ni_displayNameID, displayName);
|
|
435 |
(*env)->SetIntField(env, netifObj, ni_indexID, ifs->index);
|
|
436 |
|
|
437 |
/*
|
|
438 |
* Get the IP addresses for this interface if necessary
|
|
439 |
* Note that 0 is a valid number of addresses.
|
|
440 |
*/
|
|
441 |
if (netaddrCount < 0) {
|
|
442 |
netaddrCount = enumAddresses_win(env, ifs, &netaddrP);
|
|
443 |
if ((*env)->ExceptionOccurred(env)) {
|
|
444 |
free_netaddr(netaddrP);
|
|
445 |
return NULL;
|
|
446 |
}
|
|
447 |
}
|
|
448 |
|
|
449 |
addrArr = (*env)->NewObjectArray(env, netaddrCount, ni_iacls, NULL);
|
|
450 |
if (addrArr == NULL) {
|
|
451 |
return NULL;
|
|
452 |
}
|
|
453 |
|
|
454 |
bindsArr = (*env)->NewObjectArray(env, netaddrCount, ni_ibcls, NULL);
|
|
455 |
if (bindsArr == NULL) {
|
|
456 |
free_netaddr(netaddrP);
|
|
457 |
return NULL;
|
|
458 |
}
|
|
459 |
|
|
460 |
addrs = netaddrP;
|
|
461 |
addr_index = 0;
|
|
462 |
bind_index = 0;
|
|
463 |
while (addrs != NULL) {
|
|
464 |
jobject iaObj, ia2Obj;
|
|
465 |
jobject ibObj = NULL;
|
|
466 |
if (addrs->addr.him.sa_family == AF_INET) {
|
|
467 |
iaObj = (*env)->NewObject(env, ni_ia4cls, ni_ia4Ctor);
|
|
468 |
if (iaObj == NULL) {
|
|
469 |
return NULL;
|
|
470 |
}
|
|
471 |
/* default ctor will set family to AF_INET */
|
|
472 |
|
|
473 |
(*env)->SetIntField(env, iaObj, ni_iaAddr, ntohl(addrs->addr.him4.sin_addr.s_addr));
|
|
474 |
|
|
475 |
ibObj = (*env)->NewObject(env, ni_ibcls, ni_ibctrID);
|
|
476 |
if (ibObj == NULL) {
|
|
477 |
free_netaddr(netaddrP);
|
|
478 |
return NULL;
|
|
479 |
}
|
|
480 |
(*env)->SetObjectField(env, ibObj, ni_ibaddressID, iaObj);
|
|
481 |
ia2Obj = (*env)->NewObject(env, ni_ia4cls, ni_ia4Ctor);
|
|
482 |
if (ia2Obj == NULL) {
|
|
483 |
free_netaddr(netaddrP);
|
|
484 |
return NULL;
|
|
485 |
}
|
|
486 |
(*env)->SetIntField(env, ia2Obj, ni_iaAddr,
|
|
487 |
ntohl(addrs->brdcast.him4.sin_addr.s_addr));
|
|
488 |
(*env)->SetObjectField(env, ibObj, ni_ibbroadcastID, ia2Obj);
|
|
489 |
(*env)->SetShortField(env, ibObj, ni_ibmaskID, addrs->mask);
|
|
490 |
(*env)->SetObjectArrayElement(env, bindsArr, bind_index++, ibObj);
|
|
491 |
} else /* AF_INET6 */ {
|
|
492 |
int scope;
|
|
493 |
iaObj = (*env)->NewObject(env, ni_ia6cls, ni_ia6ctrID);
|
|
494 |
if (iaObj) {
|
|
495 |
jbyteArray ipaddress = (*env)->NewByteArray(env, 16);
|
|
496 |
if (ipaddress == NULL) {
|
|
497 |
return NULL;
|
|
498 |
}
|
|
499 |
(*env)->SetByteArrayRegion(env, ipaddress, 0, 16,
|
|
500 |
(jbyte *)&(addrs->addr.him6.sin6_addr.s6_addr));
|
|
501 |
scope = addrs->addr.him6.sin6_scope_id;
|
|
502 |
if (scope != 0) { /* zero is default value, no need to set */
|
|
503 |
(*env)->SetIntField(env, iaObj, ia6_scopeidID, scope);
|
|
504 |
(*env)->SetBooleanField(env, iaObj, ia6_scopeidsetID, JNI_TRUE);
|
|
505 |
(*env)->SetObjectField(env, iaObj, ia6_scopeifnameID, netifObj);
|
|
506 |
}
|
|
507 |
(*env)->SetObjectField(env, iaObj, ni_ia6ipaddressID, ipaddress);
|
|
508 |
ibObj = (*env)->NewObject(env, ni_ibcls, ni_ibctrID);
|
|
509 |
if (ibObj == NULL) {
|
|
510 |
free_netaddr(netaddrP);
|
|
511 |
return NULL;
|
|
512 |
}
|
|
513 |
(*env)->SetObjectField(env, ibObj, ni_ibaddressID, iaObj);
|
|
514 |
(*env)->SetShortField(env, ibObj, ni_ibmaskID, addrs->mask);
|
|
515 |
(*env)->SetObjectArrayElement(env, bindsArr, bind_index++, ibObj);
|
|
516 |
}
|
|
517 |
}
|
|
518 |
(*env)->SetObjectArrayElement(env, addrArr, addr_index, iaObj);
|
|
519 |
addrs = addrs->next;
|
|
520 |
addr_index++;
|
|
521 |
}
|
|
522 |
(*env)->SetObjectField(env, netifObj, ni_addrsID, addrArr);
|
|
523 |
(*env)->SetObjectField(env, netifObj, ni_bindsID, bindsArr);
|
|
524 |
|
|
525 |
/*
|
|
526 |
* Windows doesn't have virtual interfaces, so child array
|
|
527 |
* is always empty.
|
|
528 |
*/
|
|
529 |
childArr = (*env)->NewObjectArray(env, 0, ni_class, NULL);
|
|
530 |
if (childArr == NULL) {
|
|
531 |
return NULL;
|
|
532 |
}
|
|
533 |
(*env)->SetObjectField(env, netifObj, ni_childsID, childArr);
|
|
534 |
|
|
535 |
/* return the NetworkInterface */
|
|
536 |
return netifObj;
|
|
537 |
}
|
|
538 |
|
|
539 |
JNIEXPORT jobject JNICALL Java_java_net_NetworkInterface_getByName0_XP
|
|
540 |
(JNIEnv *env, jclass cls, jstring name)
|
|
541 |
{
|
|
542 |
netif *ifList, *curr;
|
|
543 |
jboolean isCopy;
|
|
544 |
const char *name_utf;
|
|
545 |
jobject netifObj = NULL;
|
|
546 |
|
|
547 |
if (getAllInterfacesAndAddresses (env, &ifList) < 0) {
|
|
548 |
return NULL;
|
|
549 |
}
|
|
550 |
|
|
551 |
/* get the name as a C string */
|
|
552 |
name_utf = (*env)->GetStringUTFChars(env, name, &isCopy);
|
|
553 |
|
|
554 |
/* Search by name */
|
|
555 |
curr = ifList;
|
|
556 |
while (curr != NULL) {
|
|
557 |
if (strcmp(name_utf, curr->name) == 0) {
|
|
558 |
break;
|
|
559 |
}
|
|
560 |
curr = curr->next;
|
|
561 |
}
|
|
562 |
|
|
563 |
/* if found create a NetworkInterface */
|
|
564 |
if (curr != NULL) {;
|
|
565 |
netifObj = createNetworkInterfaceXP(env, curr);
|
|
566 |
}
|
|
567 |
|
|
568 |
/* release the UTF string */
|
|
569 |
(*env)->ReleaseStringUTFChars(env, name, name_utf);
|
|
570 |
|
|
571 |
/* release the interface list */
|
|
572 |
free_netif(ifList);
|
|
573 |
|
|
574 |
return netifObj;
|
|
575 |
}
|
|
576 |
|
|
577 |
/*
|
|
578 |
* Class: NetworkInterface
|
|
579 |
* Method: getByIndex
|
|
580 |
* Signature: (I)LNetworkInterface;
|
|
581 |
*/
|
|
582 |
JNIEXPORT jobject JNICALL Java_java_net_NetworkInterface_getByIndex_XP
|
|
583 |
(JNIEnv *env, jclass cls, jint index)
|
|
584 |
{
|
|
585 |
netif *ifList, *curr;
|
|
586 |
jobject netifObj = NULL;
|
|
587 |
|
|
588 |
if (getAllInterfacesAndAddresses (env, &ifList) < 0) {
|
|
589 |
return NULL;
|
|
590 |
}
|
|
591 |
|
|
592 |
/* search by index */
|
|
593 |
curr = ifList;
|
|
594 |
while (curr != NULL) {
|
|
595 |
if (index == curr->index) {
|
|
596 |
break;
|
|
597 |
}
|
|
598 |
curr = curr->next;
|
|
599 |
}
|
|
600 |
|
|
601 |
/* if found create a NetworkInterface */
|
|
602 |
if (curr != NULL) {
|
|
603 |
netifObj = createNetworkInterfaceXP(env, curr);
|
|
604 |
}
|
|
605 |
|
|
606 |
/* release the interface list */
|
|
607 |
free_netif(ifList);
|
|
608 |
|
|
609 |
return netifObj;
|
|
610 |
}
|
|
611 |
|
|
612 |
/*
|
|
613 |
* Class: java_net_NetworkInterface
|
|
614 |
* Method: getByInetAddress0
|
|
615 |
* Signature: (Ljava/net/InetAddress;)Ljava/net/NetworkInterface;
|
|
616 |
*/
|
|
617 |
JNIEXPORT jobject JNICALL Java_java_net_NetworkInterface_getByInetAddress0_XP
|
|
618 |
(JNIEnv *env, jclass cls, jobject iaObj)
|
|
619 |
{
|
|
620 |
netif *ifList, *curr;
|
|
621 |
jobject netifObj = NULL;
|
|
622 |
|
|
623 |
/* get the list of interfaces */
|
|
624 |
if (getAllInterfacesAndAddresses (env, &ifList) < 0) {
|
|
625 |
return NULL;
|
|
626 |
}
|
|
627 |
|
|
628 |
/*
|
|
629 |
* Enumerate the addresses on each interface until we find a
|
|
630 |
* matching address.
|
|
631 |
*/
|
|
632 |
curr = ifList;
|
|
633 |
while (curr != NULL) {
|
|
634 |
netaddr *addrList = curr->addrs;
|
|
635 |
netaddr *addrP;
|
|
636 |
|
|
637 |
/* iterate through each address */
|
|
638 |
addrP = addrList;
|
|
639 |
|
|
640 |
while (addrP != NULL) {
|
|
641 |
if (NET_SockaddrEqualsInetAddress(env,
|
|
642 |
(struct sockaddr*)&addrP->addr, iaObj)) {
|
|
643 |
break;
|
|
644 |
}
|
|
645 |
addrP = addrP->next;
|
|
646 |
}
|
|
647 |
|
|
648 |
/*
|
|
649 |
* Address matched so create NetworkInterface for this interface
|
|
650 |
* and address list.
|
|
651 |
*/
|
|
652 |
if (addrP != NULL) {
|
|
653 |
netifObj = createNetworkInterfaceXP(env, curr);
|
|
654 |
break;
|
|
655 |
}
|
|
656 |
|
|
657 |
/* on next interface */
|
|
658 |
curr = curr->next;
|
|
659 |
}
|
|
660 |
|
|
661 |
/* release the interface list */
|
|
662 |
free_netif(ifList);
|
|
663 |
|
|
664 |
return netifObj;
|
|
665 |
}
|
|
666 |
|
|
667 |
/*
|
|
668 |
* Class: java_net_NetworkInterface
|
|
669 |
* Method: getAll
|
|
670 |
* Signature: ()[Ljava/net/NetworkInterface;
|
|
671 |
*/
|
|
672 |
JNIEXPORT jobjectArray JNICALL Java_java_net_NetworkInterface_getAll_XP
|
|
673 |
(JNIEnv *env, jclass cls)
|
|
674 |
{
|
|
675 |
int count;
|
|
676 |
netif *ifList, *curr;
|
|
677 |
jobjectArray netIFArr;
|
|
678 |
jint arr_index;
|
|
679 |
|
|
680 |
/*
|
|
681 |
* Get list of interfaces
|
|
682 |
*/
|
|
683 |
count = getAllInterfacesAndAddresses (env, &ifList);
|
|
684 |
if (count < 0) {
|
|
685 |
return NULL;
|
|
686 |
}
|
|
687 |
|
|
688 |
/* allocate a NetworkInterface array */
|
|
689 |
netIFArr = (*env)->NewObjectArray(env, count, cls, NULL);
|
|
690 |
if (netIFArr == NULL) {
|
|
691 |
return NULL;
|
|
692 |
}
|
|
693 |
|
|
694 |
/*
|
|
695 |
* Iterate through the interfaces, create a NetworkInterface instance
|
|
696 |
* for each array element and populate the object.
|
|
697 |
*/
|
|
698 |
curr = ifList;
|
|
699 |
arr_index = 0;
|
|
700 |
while (curr != NULL) {
|
|
701 |
jobject netifObj;
|
|
702 |
|
|
703 |
netifObj = createNetworkInterfaceXP(env, curr);
|
|
704 |
if (netifObj == NULL) {
|
|
705 |
return NULL;
|
|
706 |
}
|
|
707 |
|
|
708 |
/* put the NetworkInterface into the array */
|
|
709 |
(*env)->SetObjectArrayElement(env, netIFArr, arr_index++, netifObj);
|
|
710 |
curr = curr->next;
|
|
711 |
}
|
|
712 |
|
|
713 |
/* release the interface list */
|
|
714 |
free_netif(ifList);
|
|
715 |
|
|
716 |
return netIFArr;
|
|
717 |
}
|
|
718 |
|
|
719 |
/*
|
|
720 |
* Class: java_net_NetworkInterface
|
|
721 |
* Method: supportsMulticast0
|
|
722 |
* Signature: (Ljava/lang/String;I)Z
|
|
723 |
*/
|
|
724 |
JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_supportsMulticast0_XP
|
|
725 |
(JNIEnv *env, jclass cls, jstring name, jint index) {
|
|
726 |
IP_ADAPTER_ADDRESSES *ptr;
|
|
727 |
jboolean val = JNI_TRUE;
|
|
728 |
|
|
729 |
ptr = getAdapter(env, index);
|
|
730 |
if (ptr != NULL) {
|
|
731 |
val = ptr->Flags & IP_ADAPTER_NO_MULTICAST ? JNI_FALSE : JNI_TRUE;
|
|
732 |
free(ptr);
|
|
733 |
}
|
|
734 |
return val;
|
|
735 |
}
|
|
736 |
|
|
737 |
/*
|
|
738 |
* Class: java_net_NetworkInterface
|
|
739 |
* Method: isUp0
|
|
740 |
* Signature: (Ljava/lang/String;I)Z
|
|
741 |
*/
|
|
742 |
JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_isUp0_XP
|
|
743 |
(JNIEnv *env, jclass cls, jstring name, jint index) {
|
|
744 |
IP_ADAPTER_ADDRESSES *ptr;
|
|
745 |
jboolean val = JNI_FALSE;
|
|
746 |
|
|
747 |
ptr = getAdapter(env, index);
|
|
748 |
if (ptr != NULL) {
|
|
749 |
val = ptr->OperStatus == IfOperStatusUp ? JNI_TRUE : JNI_FALSE;
|
|
750 |
free(ptr);
|
|
751 |
}
|
|
752 |
return val;
|
|
753 |
}
|
|
754 |
|
|
755 |
/*
|
|
756 |
* Class: java_net_NetworkInterface
|
|
757 |
* Method: getMacAddr0
|
|
758 |
* Signature: (Ljava/lang/String;I)Z
|
|
759 |
*/
|
|
760 |
JNIEXPORT jbyteArray JNICALL Java_java_net_NetworkInterface_getMacAddr0_XP
|
|
761 |
(JNIEnv *env, jclass cls, jstring name, jint index) {
|
|
762 |
IP_ADAPTER_ADDRESSES *ptr;
|
|
763 |
jbyteArray ret = NULL;
|
|
764 |
int len;
|
|
765 |
|
|
766 |
ptr = getAdapter(env, index);
|
|
767 |
if (ptr != NULL) {
|
|
768 |
len = ptr->PhysicalAddressLength;
|
|
769 |
ret = (*env)->NewByteArray(env, len);
|
|
770 |
if (!IS_NULL(ret)) {
|
|
771 |
(*env)->SetByteArrayRegion(env, ret, 0, len,
|
|
772 |
(jbyte*) ptr->PhysicalAddress);
|
|
773 |
}
|
|
774 |
free(ptr);
|
|
775 |
}
|
|
776 |
return ret;
|
|
777 |
}
|
|
778 |
|
|
779 |
/*
|
|
780 |
* Class: java_net_NetworkInterface
|
|
781 |
* Method: getMTU0
|
|
782 |
* Signature: ([bLjava/lang/String;I)I
|
|
783 |
*/
|
|
784 |
JNIEXPORT jint JNICALL Java_java_net_NetworkInterface_getMTU0_XP
|
|
785 |
(JNIEnv *env, jclass cls, jstring name, jint index) {
|
|
786 |
IP_ADAPTER_ADDRESSES *ptr;
|
|
787 |
jint ret = -1;
|
|
788 |
|
|
789 |
ptr = getAdapter(env, index);
|
|
790 |
if (ptr != NULL) {
|
|
791 |
ret = ptr->Mtu;
|
|
792 |
free(ptr);
|
|
793 |
}
|
|
794 |
return ret;
|
|
795 |
}
|
|
796 |
|
|
797 |
/*
|
|
798 |
* Class: java_net_NetworkInterface
|
|
799 |
* Method: isLoopback0
|
|
800 |
* Signature: (Ljava/lang/String;I)Z
|
|
801 |
*/
|
|
802 |
JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_isLoopback0_XP
|
|
803 |
(JNIEnv *env, jclass cls, jstring name, jint index) {
|
|
804 |
IP_ADAPTER_ADDRESSES *ptr;
|
|
805 |
jboolean val = JNI_FALSE;
|
|
806 |
|
|
807 |
ptr = getAdapter(env, index);
|
|
808 |
if (ptr != NULL) {
|
|
809 |
val = ptr->IfType == IF_TYPE_SOFTWARE_LOOPBACK ? JNI_TRUE : JNI_FALSE;
|
|
810 |
free(ptr);
|
|
811 |
}
|
|
812 |
return val;
|
|
813 |
}
|
|
814 |
|
|
815 |
/*
|
|
816 |
* Class: java_net_NetworkInterface
|
|
817 |
* Method: isP2P0
|
|
818 |
* Signature: (Ljava/lang/String;I)Z
|
|
819 |
*/
|
|
820 |
JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_isP2P0_XP
|
|
821 |
(JNIEnv *env, jclass cls, jstring name, jint index) {
|
|
822 |
IP_ADAPTER_ADDRESSES *ptr;
|
|
823 |
jboolean val = JNI_FALSE;
|
|
824 |
|
|
825 |
ptr = getAdapter(env, index);
|
|
826 |
if (ptr != NULL) {
|
|
827 |
if (ptr->IfType == IF_TYPE_PPP || ptr->IfType == IF_TYPE_SLIP ||
|
|
828 |
ptr->IfType == IF_TYPE_TUNNEL) {
|
|
829 |
val = JNI_TRUE;
|
|
830 |
}
|
|
831 |
free(ptr);
|
|
832 |
}
|
|
833 |
return val;
|
|
834 |
}
|