/*
* Class: java_net_NetworkInterface
* Method: getByIndex
* Signature: (Ljava/lang/String;)Ljava/net/NetworkInterface;
*/
JNIEXPORT jobject JNICALL Java_java_net_NetworkInterface_getByIndex
(JNIEnv *env, jclass cls, jint index) {
netif *ifs, *curr;
jobject obj = NULL;
if (index <= 0) {
return NULL;
}
ifs = enumInterfaces(env);
if (ifs == NULL) {
return NULL;
}
/*
* Search the list of interface based on index
*/
curr = ifs;
while (curr != NULL) {
if (index == curr->index) {
break;
}
curr = curr->next;
}
/* if found create a NetworkInterface */
if (curr != NULL) {;
obj = createNetworkInterface(env, curr);
}
freeif(ifs);
return obj;
}
/*
* Class: NetworkInterface
* Method: getByIndex0
* Signature: (I)LNetworkInterface;
*/
JNIEXPORT jobject JNICALL Java_java_net_NetworkInterface_getByIndex0
(JNIEnv *env, jclass cls, jint index)
{
netif *ifList, *curr;
jobject netifObj = NULL;
// Retained for now to support IPv4 only stack, java.net.preferIPv4Stack
if (ipv6_available()) {
return Java_java_net_NetworkInterface_getByIndex0_XP (env, cls, index);
}
/* get the list of interfaces */
if (enumInterfaces(env, &ifList) < 0) {
return NULL;
}
/* search by index */
curr = ifList;
while (curr != NULL) {
if (index == curr->index) {
break;
}
curr = curr->next;
}
/* if found create a NetworkInterface */
if (curr != NULL) {
netifObj = createNetworkInterface(env, curr, -1, NULL);
}
/* release the interface list */
free_netif(ifList);
return netifObj;
}
/*
* Class: java_net_NetworkInterface
* Method: getByName0
* Signature: (Ljava/lang/String;)Ljava/net/NetworkInterface;
*/
JNIEXPORT jobject JNICALL Java_java_net_NetworkInterface_getByName0
(JNIEnv *env, jclass cls, jstring name) {
netif *ifs, *curr;
jboolean isCopy;
const char* name_utf = (*env)->GetStringUTFChars(env, name, &isCopy);
jobject obj = NULL;
ifs = enumInterfaces(env);
if (ifs == NULL) {
return NULL;
}
/*
* Search the list of interface based on name
*/
curr = ifs;
while (curr != NULL) {
if (strcmp(name_utf, curr->name) == 0) {
break;
}
curr = curr->next;
}
/* if found create a NetworkInterface */
if (curr != NULL) {;
obj = createNetworkInterface(env, curr);
}
/* release the UTF string and interface list */
(*env)->ReleaseStringUTFChars(env, name, name_utf);
freeif(ifs);
return obj;
}
/*
* Class: java_net_NetworkInterface
* Method: getAll
* Signature: ()[Ljava/net/NetworkInterface;
*/
JNIEXPORT jobjectArray JNICALL Java_java_net_NetworkInterface_getAll
(JNIEnv *env, jclass cls)
{
int count;
netif *ifList, *curr;
jobjectArray netIFArr;
jint arr_index;
// Retained for now to support IPv4 only stack, java.net.preferIPv4Stack
if (ipv6_available()) {
return Java_java_net_NetworkInterface_getAll_XP (env, cls);
}
/*
* Get list of interfaces
*/
count = enumInterfaces(env, &ifList);
if (count < 0) {
return NULL;
}
/* allocate a NetworkInterface array */
netIFArr = (*env)->NewObjectArray(env, count, cls, NULL);
if (netIFArr == NULL) {
return NULL;
}
/*
* Iterate through the interfaces, create a NetworkInterface instance
* for each array element and populate the object.
*/
curr = ifList;
arr_index = 0;
while (curr != NULL) {
jobject netifObj;
netifObj = createNetworkInterface(env, curr, -1, NULL);
if (netifObj == NULL) {
return NULL;
}
/* put the NetworkInterface into the array */
(*env)->SetObjectArrayElement(env, netIFArr, arr_index++, netifObj);
curr = curr->next;
}
/* release the interface list */
free_netif(ifList);
return netIFArr;
}
/*
* Class: java_net_NetworkInterface
* Method: getAll
* Signature: ()[Ljava/net/NetworkInterface;
*/
JNIEXPORT jobjectArray JNICALL Java_java_net_NetworkInterface_getAll
(JNIEnv *env, jclass cls) {
netif *ifs, *curr;
jobjectArray netIFArr;
jint arr_index, ifCount;
ifs = enumInterfaces(env);
if (ifs == NULL) {
return NULL;
}
/* count the interface */
ifCount = 0;
curr = ifs;
while (curr != NULL) {
ifCount++;
curr = curr->next;
}
/* allocate a NetworkInterface array */
netIFArr = (*env)->NewObjectArray(env, ifCount, cls, NULL);
if (netIFArr == NULL) {
freeif(ifs);
return NULL;
}
/*
* Iterate through the interfaces, create a NetworkInterface instance
* for each array element and populate the object.
*/
curr = ifs;
arr_index = 0;
while (curr != NULL) {
jobject netifObj;
netifObj = createNetworkInterface(env, curr);
if (netifObj == NULL) {
freeif(ifs);
return NULL;
}
/* put the NetworkInterface into the array */
(*env)->SetObjectArrayElement(env, netIFArr, arr_index++, netifObj);
curr = curr->next;
}
freeif(ifs);
return netIFArr;
}
/*
* Class: java_net_NetworkInterface
* Method: getByName0
* Signature: (Ljava/lang/String;)Ljava/net/NetworkInterface;
*/
JNIEXPORT jobject JNICALL Java_java_net_NetworkInterface_getByName0
(JNIEnv *env, jclass cls, jstring name)
{
netif *ifList, *curr;
jboolean isCopy;
const char *name_utf;
jobject netifObj = NULL;
// Retained for now to support IPv4 only stack, java.net.preferIPv4Stack
if (ipv6_available()) {
return Java_java_net_NetworkInterface_getByName0_XP (env, cls, name);
}
/* get the list of interfaces */
if (enumInterfaces(env, &ifList) < 0) {
return NULL;
}
/* get the name as a C string */
name_utf = (*env)->GetStringUTFChars(env, name, &isCopy);
if (name_utf != NULL) {
/* Search by name */
curr = ifList;
while (curr != NULL) {
if (strcmp(name_utf, curr->name) == 0) {
break;
}
curr = curr->next;
}
/* if found create a NetworkInterface */
if (curr != NULL) {
;
netifObj = createNetworkInterface(env, curr, -1, NULL);
}
/* release the UTF string */
(*env)->ReleaseStringUTFChars(env, name, name_utf);
} else {
if (!(*env)->ExceptionCheck(env))
JNU_ThrowOutOfMemoryError(env, NULL);
}
/* release the interface list */
free_netif(ifList);
return netifObj;
}
int getAllInterfacesAndAddresses (JNIEnv *env, netif **netifPP)
{
DWORD ret;
IP_ADAPTER_ADDRESSES *ptr, *adapters=NULL;
ULONG len=ipinflen, count=0;
netif *nif=NULL, *dup_nif, *last=NULL, *loopif=NULL, *curr;
int tun=0, net=0;
*netifPP = NULL;
/*
* Get the IPv4 interfaces. This information is the same
* as what previous JDK versions would return.
*/
ret = enumInterfaces(env, netifPP);
if (ret == -1) {
return -1;
} else {
count = ret;
}
/* locate the loopback (and the last) interface */
for (nif=*netifPP, last=nif; nif!=NULL; nif=nif->next) {
if (nif->ifType == MIB_IF_TYPE_LOOPBACK) {
loopif = nif;
}
last = nif;
}
// Retrieve IPv4 addresses with the IP Helper API
curr = *netifPP;
while (curr != NULL) {
netaddr *netaddrP;
ret = enumAddresses_win(env, curr, &netaddrP);
if (ret == -1) {
return -1;
}
curr->addrs = netaddrP;
curr->naddrs += ret;
curr = curr->next;
}
ret = getAdapters (env, &adapters);
if (ret != ERROR_SUCCESS) {
goto err;
}
/* Now get the IPv6 information. This includes:
* (a) IPv6 information associated with interfaces already found
* (b) IPv6 information for IPv6 only interfaces (probably tunnels)
*
* For compatibility with previous releases we use the naming
* information gotten from enumInterfaces() for (a) entries
* However, the index numbers are taken from the new API.
*
* The procedure is to go through the list of adapters returned
* by the new API looking for entries that correspond to IPv4 interfaces
* already found.
*/
ptr = adapters;
while (ptr != NULL) {
int c;
netif *nif0;
if (ptr->IfType == IF_TYPE_SOFTWARE_LOOPBACK && (loopif != NULL)) {
c = getAddrsFromAdapter(ptr, &loopif->addrs);
if (c == -1) {
goto err;
}
loopif->naddrs += c;
} else {
int index = ptr->IfIndex;
if (index != 0) {
/* This entry is associated with an IPv4 interface */
for (nif=*netifPP; nif!=NULL; nif=nif->next) {
if (nif->index == index) {
/* found the interface entry
* set the index to the IPv6 index and add the
* IPv6 addresses
*/
nif->ipv6Index = ptr->Ipv6IfIndex;
c = getAddrsFromAdapter(ptr, &nif->addrs);
nif->naddrs += c;
break;
}
}
} else {
/* This entry is IPv6 only */
char newname [128];
int c;
/* Windows allocates duplicate adapter entries
* for tunnel interfaces when there are multiple
* physical adapters. Need to check
* if this is a duplicate (ipv6Index is the same)
*/
dup_nif = 0;
for (nif0=*netifPP; nif0!=NULL; nif0=nif0->next) {
if (nif0->hasIpv6Address &&
ptr->Ipv6IfIndex == nif0->ipv6Index) {
dup_nif = nif0;
break;
}
}
if (dup_nif == 0) {
/* new interface */
nif = (netif *) calloc (1, sizeof(netif));
if (nif == 0) {
goto err;
}
if (ptr->IfType == IF_TYPE_TUNNEL) {
sprintf (newname, "tun%d", tun);
tun ++;
} else {
sprintf (newname, "net%d", net);
net ++;
}
nif->name = malloc (strlen(newname)+1);
nif->displayName = malloc (wcslen(ptr->FriendlyName)*2+2);
if (nif->name == 0 || nif->displayName == 0) {
goto err;
}
strcpy (nif->name, newname);
wcscpy ((PWCHAR)nif->displayName, ptr->FriendlyName);
nif->dNameIsUnicode = TRUE;
// the java.net.NetworkInterface abstraction only has index
// so the Ipv6IfIndex needs to map onto index
nif->index = ptr->Ipv6IfIndex;
nif->ipv6Index = ptr->Ipv6IfIndex;
nif->hasIpv6Address = TRUE;
last->next = nif;
last = nif;
count++;
c = getAddrsFromAdapter(ptr, &nif->addrs);
if (c == -1) {
goto err;
}
nif->naddrs += c;
} else {
/* add the addresses from this adapter to the
* original (dup_nif)
*/
c = getAddrsFromAdapter(ptr, &dup_nif->addrs);
if (c == -1) {
goto err;
}
dup_nif->naddrs += c;
}
}
}
ptr=ptr->Next;
}
free (adapters);
return count;
err:
if (*netifPP) {
free_netif (*netifPP);
}
if (adapters) {
free (adapters);
}
return -1;
}
/*
* Class: java_net_NetworkInterface
* Method: getByInetAddress0
* Signature: (Ljava/net/InetAddress;)Ljava/net/NetworkInterface;
*/
JNIEXPORT jobject JNICALL Java_java_net_NetworkInterface_getByInetAddress0
(JNIEnv *env, jclass cls, jobject iaObj)
{
netif *ifList, *curr;
jint addr = getInetAddress_addr(env, iaObj);
jobject netifObj = NULL;
// Retained for now to support IPv4 only stack, java.net.preferIPv4Stack
if (ipv6_available()) {
return Java_java_net_NetworkInterface_getByInetAddress0_XP (env, cls, iaObj);
}
/* get the list of interfaces */
if (enumInterfaces(env, &ifList) < 0) {
return NULL;
}
/*
* Enumerate the addresses on each interface until we find a
* matching address.
*/
curr = ifList;
while (curr != NULL) {
int count;
netaddr *addrList;
netaddr *addrP;
/* enumerate the addresses on this interface */
count = enumAddresses_win(env, curr, &addrList);
if (count < 0) {
free_netif(ifList);
return NULL;
}
/* iterate through each address */
addrP = addrList;
while (addrP != NULL) {
if ((unsigned long)addr == ntohl(addrP->addr.him4.sin_addr.s_addr)) {
break;
}
addrP = addrP->next;
}
/*
* Address matched so create NetworkInterface for this interface
* and address list.
*/
if (addrP != NULL) {
/* createNetworkInterface will free addrList */
netifObj = createNetworkInterface(env, curr, count, addrList);
break;
}
/* on next interface */
curr = curr->next;
}
/* release the interface list */
free_netif(ifList);
return netifObj;
}
/*
* Class: java_net_NetworkInterface
* Method: getByInetAddress0
* Signature: (Ljava/net/InetAddress;)Ljava/net/NetworkInterface;
*/
JNIEXPORT jobject JNICALL Java_java_net_NetworkInterface_getByInetAddress0
(JNIEnv *env, jclass cls, jobject iaObj) {
netif *ifs, *curr;
int family = (getInetAddress_family(env, iaObj) == IPv4) ? AF_INET : AF_INET6;
jobject obj = NULL;
jboolean match = JNI_FALSE;
ifs = enumInterfaces(env);
if (ifs == NULL) {
return NULL;
}
curr = ifs;
while (curr != NULL) {
netaddr *addrP = curr->addr;
/*
* Iterate through each address on the interface
*/
while (addrP != NULL) {
if (family == addrP->family) {
if (family == AF_INET) {
int address1 = htonl(((struct sockaddr_in*)addrP->addr)->sin_addr.s_addr);
int address2 = getInetAddress_addr(env, iaObj);
if (address1 == address2) {
match = JNI_TRUE;
break;
}
}
#ifdef AF_INET6
if (family == AF_INET6) {
jbyte *bytes = (jbyte *)&(((struct sockaddr_in6*)addrP->addr)->sin6_addr);
jbyte caddr[16];
int i;
getInet6Address_ipaddress(env, iaObj, (char *)caddr);
i = 0;
while (i < 16) {
if (caddr[i] != bytes[i]) {
break;
}
i++;
}
if (i >= 16) {
match = JNI_TRUE;
break;
}
}
#endif
}
if (match) {
break;
}
addrP = addrP->next;
}
if (match) {
break;
}
curr = curr->next;
}
/* if found create a NetworkInterface */
if (match) {;
obj = createNetworkInterface(env, curr);
}
freeif(ifs);
return obj;
}
/*
* Class: java_net_NetworkInterface
* Method: getByInetAddress0
* Signature: (Ljava/net/InetAddress;)Ljava/net/NetworkInterface;
*/
JNIEXPORT jobject JNICALL Java_java_net_NetworkInterface_getByInetAddress0
(JNIEnv *env, jclass cls, jobject iaObj)
{
netif *ifs, *curr;
int family = KAfInet;
jobject obj = NULL;
jboolean match = JNI_FALSE;
jint jfamily = (*env)->GetIntField(env, iaObj, ni_iafamilyID);
if (jfamily != IPv4) {
family = KAfInet6;
}
ifs = enumInterfaces(env);
if (ifs == NULL) {
return NULL;
}
curr = ifs;
while (curr != NULL) {
netaddr *addrP = curr->addr;
/*
* Iterate through each address on the interface
*/
while (addrP != NULL) {
if (family == addrP->family) {
if (family == KAfInet) {
int address1 = addrP->ia.Address();
int address2 = (*env)->GetIntField(env, iaObj, ni_iaaddressID);
if (address1 == address2) {
match = JNI_TRUE;
break;
}
}
if (family == KAfInet6) {
const TIp6Addr &ipv6address = addrP->ia.Ip6Address();
jbyte *bytes = (jbyte *)ipv6address.u.iAddr8;
jbyteArray ipaddress = (*env)->GetObjectField(env, iaObj,
ni_ia6ipaddressID);
jbyte caddr[16];
int i;
(*env)->GetByteArrayRegion(env, ipaddress, 0, 16, caddr);
i = 0;
while (i < 16) {
if (caddr[i] != bytes[i]) {
break;
}
i++;
}
if (i >= 16) {
match = JNI_TRUE;
break;
}
}
}
if (match) {
break;
}
addrP = addrP->next;
}
if (match) {
break;
}
curr = curr->next;
}
/* if found create a NetworkInterface */
if (match) {;
obj = createNetworkInterface(env, curr);
}
freeif(ifs);
return obj;
}
