--- a/jdk/src/solaris/native/java/net/NetworkInterface.c Tue Jun 22 19:18:06 2010 -0700
+++ b/jdk/src/solaris/native/java/net/NetworkInterface.c Wed Jun 23 17:25:50 2010 +0400
@@ -23,6 +23,7 @@
* questions.
*/
+
#include <errno.h>
#include <strings.h>
#include <netinet/in.h>
@@ -33,23 +34,23 @@
#include <arpa/inet.h>
#include <net/if.h>
#include <net/if_arp.h>
+
#ifdef __solaris__
#include <sys/dlpi.h>
#include <fcntl.h>
#include <stropts.h>
+#include <sys/sockio.h>
#endif
+
#ifdef __linux__
#include <sys/ioctl.h>
#include <bits/ioctls.h>
#include <linux/sockios.h>
#include <sys/utsname.h>
#include <stdio.h>
-#else
-#include <sys/sockio.h>
#endif
#ifdef __linux__
-#define ifr_index ifr_ifindex
#define _PATH_PROCNET_IFINET6 "/proc/net/if_inet6"
#endif
@@ -108,20 +109,41 @@
static jfieldID ni_ib4broadcastID;
static jfieldID ni_ib4maskID;
+/** Private methods declarations **/
static jobject createNetworkInterface(JNIEnv *env, netif *ifs);
+static int getFlags0(JNIEnv *env, jstring ifname);
-static netif *enumInterfaces(JNIEnv *env);
-static netif *enumIPv4Interfaces(JNIEnv *env, netif *ifs);
+static netif *enumInterfaces(JNIEnv *env);
+static netif *enumIPv4Interfaces(JNIEnv *env, int sock, netif *ifs);
+
#ifdef AF_INET6
-static netif *enumIPv6Interfaces(JNIEnv *env, netif *ifs);
+static netif *enumIPv6Interfaces(JNIEnv *env, int sock, netif *ifs);
#endif
-static netif *addif(JNIEnv *env, netif *ifs, char *if_name, int index,
- int family, struct sockaddr *new_addrP, int new_addrlen,
- short prefix);
-static void freeif(netif *ifs);
-static struct sockaddr *getBroadcast(JNIEnv *env, const char *ifname);
-static short getSubnet(JNIEnv *env, const char *ifname);
+static netif *addif(JNIEnv *env, int sock, const char * if_name, netif *ifs, struct sockaddr* ifr_addrP, int family, short prefix);
+static void freeif(netif *ifs);
+
+static int openSocket(JNIEnv *env, int proto);
+static int openSocketWithFallback(JNIEnv *env, const char *ifname);
+
+
+static struct sockaddr *getBroadcast(JNIEnv *env, int sock, const char *name, struct sockaddr *brdcast_store);
+static short getSubnet(JNIEnv *env, int sock, const char *ifname);
+static int getIndex(JNIEnv *env, int sock, const char *ifname);
+
+static int getFlags(JNIEnv *env, int sock, const char *ifname);
+static int getMacAddress(JNIEnv *env, int sock, const char* ifname, const struct in_addr* addr, unsigned char *buf);
+static int getMTU(JNIEnv *env, int sock, const char *ifname);
+
+
+
+#ifdef __solaris__
+static netif *enumIPvXInterfaces(JNIEnv *env, int sock, netif *ifs, int family);
+static int getMacFromDevice(JNIEnv *env, const char* ifname, unsigned char* retbuf);
+#endif
+
+
+/******************* Java entry points *****************************/
/*
* Class: java_net_NetworkInterface
@@ -172,7 +194,7 @@
netif *ifs, *curr;
jboolean isCopy;
- const char* name_utf = (*env)->GetStringUTFChars(env, name, &isCopy);
+ const char* name_utf;
jobject obj = NULL;
ifs = enumInterfaces(env);
@@ -180,6 +202,8 @@
return NULL;
}
+ name_utf = (*env)->GetStringUTFChars(env, name, &isCopy);
+
/*
* Search the list of interface based on name
*/
@@ -253,12 +277,13 @@
(JNIEnv *env, jclass cls, jobject iaObj) {
netif *ifs, *curr;
+
#ifdef AF_INET6
- int family = (*env)->GetIntField(env, iaObj, ni_iafamilyID) == IPv4?
- AF_INET : AF_INET6;
+ int family = ( (*env)->GetIntField(env, iaObj, ni_iafamilyID) == IPv4 ) ? AF_INET : AF_INET6;
#else
- int family = AF_INET;
+ int family = AF_INET;
#endif
+
jobject obj = NULL;
jboolean match = JNI_FALSE;
@@ -390,18 +415,169 @@
return netIFArr;
}
+
+/*
+ * Class: java_net_NetworkInterface
+ * Method: isUp0
+ * Signature: (Ljava/lang/String;I)Z
+ */
+JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_isUp0(JNIEnv *env, jclass cls, jstring name, jint index) {
+ int ret = getFlags0(env, name);
+ return ((ret & IFF_UP) && (ret & IFF_RUNNING)) ? JNI_TRUE : JNI_FALSE;
+}
+
+/*
+ * Class: java_net_NetworkInterface
+ * Method: isP2P0
+ * Signature: (Ljava/lang/String;I)Z
+ */
+JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_isP2P0(JNIEnv *env, jclass cls, jstring name, jint index) {
+ int ret = getFlags0(env, name);
+ return (ret & IFF_POINTOPOINT) ? JNI_TRUE : JNI_FALSE;
+}
+
+/*
+ * Class: java_net_NetworkInterface
+ * Method: isLoopback0
+ * Signature: (Ljava/lang/String;I)Z
+ */
+JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_isLoopback0(JNIEnv *env, jclass cls, jstring name, jint index) {
+ int ret = getFlags0(env, name);
+ return (ret & IFF_LOOPBACK) ? JNI_TRUE : JNI_FALSE;
+}
+
+/*
+ * Class: java_net_NetworkInterface
+ * Method: supportsMulticast0
+ * Signature: (Ljava/lang/String;I)Z
+ */
+JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_supportsMulticast0(JNIEnv *env, jclass cls, jstring name, jint index) {
+ int ret = getFlags0(env, name);
+ return (ret & IFF_MULTICAST) ? JNI_TRUE : JNI_FALSE;
+}
+
+/*
+ * Class: java_net_NetworkInterface
+ * Method: getMacAddr0
+ * Signature: ([bLjava/lang/String;I)[b
+ */
+JNIEXPORT jbyteArray JNICALL Java_java_net_NetworkInterface_getMacAddr0(JNIEnv *env, jclass class, jbyteArray addrArray, jstring name, jint index) {
+ jint addr;
+ jbyte caddr[4];
+ struct in_addr iaddr;
+ jbyteArray ret = NULL;
+ unsigned char mac[16];
+ int len;
+ int sock;
+ jboolean isCopy;
+ const char* name_utf;
+
+ name_utf = (*env)->GetStringUTFChars(env, name, &isCopy);
+
+ if ((sock =openSocketWithFallback(env, name_utf)) < 0) {
+ (*env)->ReleaseStringUTFChars(env, name, name_utf);
+ return JNI_FALSE;
+ }
+
+
+ if (!IS_NULL(addrArray)) {
+ (*env)->GetByteArrayRegion(env, addrArray, 0, 4, caddr);
+ addr = ((caddr[0]<<24) & 0xff000000);
+ addr |= ((caddr[1] <<16) & 0xff0000);
+ addr |= ((caddr[2] <<8) & 0xff00);
+ addr |= (caddr[3] & 0xff);
+ iaddr.s_addr = htonl(addr);
+ len = getMacAddress(env, sock, name_utf, &iaddr, mac);
+ } else {
+ len = getMacAddress(env, sock, name_utf,NULL, mac);
+ }
+ if (len > 0) {
+ ret = (*env)->NewByteArray(env, len);
+ if (IS_NULL(ret)) {
+ /* we may have memory to free at the end of this */
+ goto fexit;
+ }
+ (*env)->SetByteArrayRegion(env, ret, 0, len, (jbyte *) (mac));
+ }
+ fexit:
+ /* release the UTF string and interface list */
+ (*env)->ReleaseStringUTFChars(env, name, name_utf);
+
+ close(sock);
+ return ret;
+}
+
+/*
+ * Class: java_net_NetworkInterface
+ * Method: getMTU0
+ * Signature: ([bLjava/lang/String;I)I
+ */
+
+JNIEXPORT jint JNICALL Java_java_net_NetworkInterface_getMTU0(JNIEnv *env, jclass class, jstring name, jint index) {
+ jboolean isCopy;
+ int ret = -1;
+ int sock;
+ const char* name_utf;
+
+ name_utf = (*env)->GetStringUTFChars(env, name, &isCopy);
+
+ if ((sock =openSocketWithFallback(env, name_utf)) < 0) {
+ (*env)->ReleaseStringUTFChars(env, name, name_utf);
+ return JNI_FALSE;
+ }
+
+ ret = getMTU(env, sock, name_utf);
+
+ (*env)->ReleaseStringUTFChars(env, name, name_utf);
+
+ close(sock);
+ return ret;
+}
+
+/*** Private methods definitions ****/
+
+static int getFlags0(JNIEnv *env, jstring name) {
+ jboolean isCopy;
+ int ret, sock;
+ const char* name_utf;
+
+ name_utf = (*env)->GetStringUTFChars(env, name, &isCopy);
+
+ if ((sock = openSocketWithFallback(env, name_utf)) < 0) {
+ (*env)->ReleaseStringUTFChars(env, name, name_utf);
+ return -1;
+ }
+
+ name_utf = (*env)->GetStringUTFChars(env, name, &isCopy);
+
+ ret = getFlags(env, sock, name_utf);
+
+ close(sock);
+ (*env)->ReleaseStringUTFChars(env, name, name_utf);
+
+ if (ret < 0) {
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException", "IOCTL SIOCGLIFFLAGS failed");
+ return -1;
+ }
+
+ return ret;
+}
+
+
+
+
/*
* Create a NetworkInterface object, populate the name and index, and
* populate the InetAddress array based on the IP addresses for this
* interface.
*/
-jobject createNetworkInterface(JNIEnv *env, netif *ifs)
-{
+jobject createNetworkInterface(JNIEnv *env, netif *ifs) {
jobject netifObj;
jobject name;
jobjectArray addrArr;
jobjectArray bindArr;
jobjectArray childArr;
+ netaddr *addrs;
jint addr_index, addr_count, bind_index;
jint child_count, child_index;
netaddr *addrP;
@@ -441,7 +617,7 @@
bindArr = (*env)->NewObjectArray(env, addr_count, ni_ibcls, NULL);
if (bindArr == NULL) {
- return NULL;
+ return NULL;
}
addrP = ifs->addr;
addr_index = 0;
@@ -453,23 +629,22 @@
if (addrP->family == AF_INET) {
iaObj = (*env)->NewObject(env, ni_ia4cls, ni_ia4ctrID);
if (iaObj) {
- (*env)->SetIntField(env, iaObj, ni_iaaddressID,
- htonl(((struct sockaddr_in*)addrP->addr)->sin_addr.s_addr));
+ (*env)->SetIntField(env, iaObj, ni_iaaddressID, htonl(((struct sockaddr_in*)addrP->addr)->sin_addr.s_addr));
}
ibObj = (*env)->NewObject(env, ni_ibcls, ni_ibctrID);
if (ibObj) {
- (*env)->SetObjectField(env, ibObj, ni_ibaddressID, iaObj);
- if (addrP->brdcast) {
- jobject ia2Obj = NULL;
- ia2Obj = (*env)->NewObject(env, ni_ia4cls, ni_ia4ctrID);
- if (ia2Obj) {
- (*env)->SetIntField(env, ia2Obj, ni_iaaddressID,
- htonl(((struct sockaddr_in*)addrP->brdcast)->sin_addr.s_addr));
- (*env)->SetObjectField(env, ibObj, ni_ib4broadcastID, ia2Obj);
- (*env)->SetShortField(env, ibObj, ni_ib4maskID, addrP->mask);
- }
- }
- (*env)->SetObjectArrayElement(env, bindArr, bind_index++, ibObj);
+ (*env)->SetObjectField(env, ibObj, ni_ibaddressID, iaObj);
+ if (addrP->brdcast) {
+ jobject ia2Obj = NULL;
+ ia2Obj = (*env)->NewObject(env, ni_ia4cls, ni_ia4ctrID);
+ if (ia2Obj) {
+ (*env)->SetIntField(env, ia2Obj, ni_iaaddressID,
+ htonl(((struct sockaddr_in*)addrP->brdcast)->sin_addr.s_addr));
+ (*env)->SetObjectField(env, ibObj, ni_ib4broadcastID, ia2Obj);
+ (*env)->SetShortField(env, ibObj, ni_ib4maskID, addrP->mask);
+ }
+ }
+ (*env)->SetObjectArrayElement(env, bindArr, bind_index++, ibObj);
}
}
@@ -483,14 +658,10 @@
return NULL;
}
(*env)->SetByteArrayRegion(env, ipaddress, 0, 16,
- (jbyte *)&(((struct sockaddr_in6*)addrP->addr)->sin6_addr));
-#ifdef __linux__
- if (!kernelIsV22()) {
- scope = ((struct sockaddr_in6*)addrP->addr)->sin6_scope_id;
- }
-#else
+ (jbyte *)&(((struct sockaddr_in6*)addrP->addr)->sin6_addr));
+
scope = ((struct sockaddr_in6*)addrP->addr)->sin6_scope_id;
-#endif
+
if (scope != 0) { /* zero is default value, no need to set */
(*env)->SetIntField(env, iaObj, ia6_scopeidID, scope);
(*env)->SetBooleanField(env, iaObj, ia6_scopeidsetID, JNI_TRUE);
@@ -500,9 +671,9 @@
}
ibObj = (*env)->NewObject(env, ni_ibcls, ni_ibctrID);
if (ibObj) {
- (*env)->SetObjectField(env, ibObj, ni_ibaddressID, iaObj);
- (*env)->SetShortField(env, ibObj, ni_ib4maskID, addrP->mask);
- (*env)->SetObjectArrayElement(env, bindArr, bind_index++, ibObj);
+ (*env)->SetObjectField(env, ibObj, ni_ibaddressID, iaObj);
+ (*env)->SetShortField(env, ibObj, ni_ib4maskID, addrP->mask);
+ (*env)->SetObjectArrayElement(env, bindArr, bind_index++, ibObj);
}
}
#endif
@@ -521,13 +692,13 @@
child_count = 0;
childP = ifs->childs;
while (childP) {
- child_count++;
- childP = childP->next;
+ child_count++;
+ childP = childP->next;
}
childArr = (*env)->NewObjectArray(env, child_count, ni_class, NULL);
if (childArr == NULL) {
- return NULL;
+ return NULL;
}
/*
@@ -539,7 +710,7 @@
while(childP) {
tmp = createNetworkInterface(env, childP);
if (tmp == NULL) {
- return NULL;
+ return NULL;
}
(*env)->SetObjectField(env, tmp, ni_parentID, netifObj);
(*env)->SetObjectArrayElement(env, childArr, child_index++, tmp);
@@ -558,294 +729,56 @@
*/
static netif *enumInterfaces(JNIEnv *env) {
netif *ifs;
+ int sock;
/*
* Enumerate IPv4 addresses
*/
- ifs = enumIPv4Interfaces(env, NULL);
- if (ifs == NULL) {
- if ((*env)->ExceptionOccurred(env)) {
- return NULL;
- }
+
+ sock = openSocket(env, AF_INET);
+ if (sock < 0 && (*env)->ExceptionOccurred(env)) {
+ return NULL;
}
+ ifs = enumIPv4Interfaces(env, sock, NULL);
+ close(sock);
+
+ if (ifs == NULL && (*env)->ExceptionOccurred(env)) {
+ return NULL;
+ }
+
+ /* return partial list if exception occure in the middle of process ???*/
+
/*
* If IPv6 is available then enumerate IPv6 addresses.
*/
#ifdef AF_INET6
- if (ipv6_available()) {
- ifs = enumIPv6Interfaces(env, ifs);
+ sock = openSocket(env, AF_INET6);
+ if (sock < 0 && (*env)->ExceptionOccurred(env)) {
+ freeif(ifs);
+ return NULL;
+ }
+
+ ifs = enumIPv6Interfaces(env, sock, ifs);
+ close(sock);
if ((*env)->ExceptionOccurred(env)) {
freeif(ifs);
return NULL;
}
- }
#endif
return ifs;
}
-
-/*
- * Enumerates and returns all IPv4 interfaces
- */
-static netif *enumIPv4Interfaces(JNIEnv *env, netif *ifs) {
- int sock;
- struct ifconf ifc;
- struct ifreq *ifreqP;
- char *buf;
- int numifs;
- unsigned i;
- unsigned bufsize;
-
- sock = JVM_Socket(AF_INET, SOCK_DGRAM, 0);
- if (sock < 0) {
- /*
- * If EPROTONOSUPPORT is returned it means we don't have
- * IPv4 support so don't throw an exception.
- */
- if (errno != EPROTONOSUPPORT) {
- NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException",
- "Socket creation failed");
- }
- return ifs;
- }
-
-#ifdef __linux__
- /* need to do a dummy SIOCGIFCONF to determine the buffer size.
- * SIOCGIFCOUNT doesn't work
- */
- ifc.ifc_buf = NULL;
- if (ioctl(sock, SIOCGIFCONF, (char *)&ifc) < 0) {
- NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException",
- "ioctl SIOCGIFCONF failed");
- close(sock);
- return ifs;
- }
- bufsize = ifc.ifc_len;
-#else
- if (ioctl(sock, SIOCGIFNUM, (char *)&numifs) < 0) {
- NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException",
- "ioctl SIOCGIFNUM failed");
- close(sock);
- return ifs;
- }
- bufsize = numifs * sizeof (struct ifreq);
-#endif /* __linux__ */
-
- buf = (char *)malloc(bufsize);
- if (!buf) {
- JNU_ThrowOutOfMemoryError(env, "heap allocation failed");
- (void) close(sock);
- return ifs;
- }
- ifc.ifc_len = bufsize;
- ifc.ifc_buf = buf;
- if (ioctl(sock, SIOCGIFCONF, (char *)&ifc) < 0) {
- NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException",
- "ioctl SIOCGIFCONF failed");
- (void) close(sock);
- (void) free(buf);
- return ifs;
- }
-
- /*
- * Iterate through each interface
- */
- ifreqP = ifc.ifc_req;
- for (i=0; i<ifc.ifc_len/sizeof (struct ifreq); i++, ifreqP++) {
- int index;
- struct ifreq if2;
-
- memset((char *)&if2, 0, sizeof(if2));
- strcpy(if2.ifr_name, ifreqP->ifr_name);
-
- /*
- * Try to get the interface index
- * (Not supported on Solaris 2.6 or 7)
- */
- if (ioctl(sock, SIOCGIFINDEX, (char *)&if2) >= 0) {
- index = if2.ifr_index;
- } else {
- index = -1;
- }
-
- /*
- * Add to the list
- */
- ifs = addif(env, ifs, ifreqP->ifr_name, index, AF_INET,
- (struct sockaddr *)&(ifreqP->ifr_addr),
- sizeof(struct sockaddr_in), 0);
-
- /*
- * If an exception occurred then free the list
- */
- if ((*env)->ExceptionOccurred(env)) {
- close(sock);
- free(buf);
- freeif(ifs);
- return NULL;
- }
- }
-
- /*
- * Free socket and buffer
- */
- close(sock);
- free(buf);
- return ifs;
-}
-
-
-#if defined(__solaris__) && defined(AF_INET6)
-/*
- * Enumerates and returns all IPv6 interfaces on Solaris
- */
-static netif *enumIPv6Interfaces(JNIEnv *env, netif *ifs) {
- int sock;
- struct lifconf ifc;
- struct lifreq *ifr;
- int n;
- char *buf;
- struct lifnum numifs;
- unsigned bufsize;
-
- sock = JVM_Socket(AF_INET6, SOCK_DGRAM, 0);
- if (sock < 0) {
- NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException",
- "Failed to create IPv6 socket");
- return ifs;
- }
-
- /*
- * Get the interface count
- */
- numifs.lifn_family = AF_UNSPEC;
- numifs.lifn_flags = 0;
- if (ioctl(sock, SIOCGLIFNUM, (char *)&numifs) < 0) {
- NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException",
- "ioctl SIOCGLIFNUM failed");
- close(sock);
- return ifs;
- }
-
- /*
- * Enumerate the interface configurations
- */
- bufsize = numifs.lifn_count * sizeof (struct lifreq);
- buf = (char *)malloc(bufsize);
- if (!buf) {
- JNU_ThrowOutOfMemoryError(env, "heap allocation failed");
- (void) close(sock);
- return ifs;
- }
- ifc.lifc_family = AF_UNSPEC;
- ifc.lifc_flags = 0;
- ifc.lifc_len = bufsize;
- ifc.lifc_buf = buf;
- if (ioctl(sock, SIOCGLIFCONF, (char *)&ifc) < 0) {
- NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException",
- "ioctl SIOCGLIFCONF failed");
- close(sock);
- free(buf);
- return ifs;
- }
-
- /*
- * Iterate through each interface
- */
- ifr = ifc.lifc_req;
- for (n=0; n<numifs.lifn_count; n++, ifr++) {
- int index = -1;
- struct lifreq if2;
-
- /*
- * Ignore non-IPv6 addresses
- */
- if (ifr->lifr_addr.ss_family != AF_INET6) {
- continue;
- }
-
- /*
- * Get the index
- */
- memset((char *)&if2, 0, sizeof(if2));
- strcpy(if2.lifr_name, ifr->lifr_name);
- if (ioctl(sock, SIOCGLIFINDEX, (char *)&if2) >= 0) {
- struct sockaddr_in6 *s6= (struct sockaddr_in6 *)&(ifr->lifr_addr);
- index = if2.lifr_index;
- s6->sin6_scope_id = index;
- }
-
- /* add to the list */
- ifs = addif(env, ifs, ifr->lifr_name, index, AF_INET6,
- (struct sockaddr *)&(ifr->lifr_addr),
- sizeof(struct sockaddr_in6), (short) ifr->lifr_addrlen);
-
- /*
- * If an exception occurred we return
- */
- if ((*env)->ExceptionOccurred(env)) {
- close(sock);
- free(buf);
- return ifs;
- }
-
- }
-
- close(sock);
- free(buf);
- return ifs;
-
-}
-#endif
-
-
-#if defined(__linux__) && defined(AF_INET6)
-/*
- * Enumerates and returns all IPv6 interfaces on Linux
- */
-static netif *enumIPv6Interfaces(JNIEnv *env, netif *ifs) {
- FILE *f;
- char addr6[40], devname[20];
- char addr6p[8][5];
- int plen, scope, dad_status, if_idx;
- uint8_t ipv6addr[16];
-
- if ((f = fopen(_PATH_PROCNET_IFINET6, "r")) != NULL) {
- while (fscanf(f, "%4s%4s%4s%4s%4s%4s%4s%4s %02x %02x %02x %02x %20s\n",
- addr6p[0], addr6p[1], addr6p[2], addr6p[3],
- addr6p[4], addr6p[5], addr6p[6], addr6p[7],
- &if_idx, &plen, &scope, &dad_status, devname) != EOF) {
- struct sockaddr_in6 addr;
-
- sprintf(addr6, "%s:%s:%s:%s:%s:%s:%s:%s",
- addr6p[0], addr6p[1], addr6p[2], addr6p[3],
- addr6p[4], addr6p[5], addr6p[6], addr6p[7]);
- inet_pton(AF_INET6, addr6, ipv6addr);
-
- memset(&addr, 0, sizeof(struct sockaddr_in6));
- memcpy((void*)addr.sin6_addr.s6_addr, (const void*)ipv6addr, 16);
- addr.sin6_scope_id = if_idx;
-
- ifs = addif(env, ifs, devname, if_idx, AF_INET6,
- (struct sockaddr *)&addr,
- sizeof(struct sockaddr_in6), plen);
-
- /*
- * If an exception occurred then return the list as is.
- */
- if ((*env)->ExceptionOccurred(env)) {
- fclose(f);
- return ifs;
- }
- }
- fclose(f);
- }
- return ifs;
-}
-#endif
+#define CHECKED_MALLOC3(_pointer,_type,_size) \
+ do{ \
+ _pointer = (_type)malloc( _size ); \
+ if (_pointer == NULL) { \
+ JNU_ThrowOutOfMemoryError(env, "heap allocation failed"); \
+ return ifs; /* return untouched list */ \
+ } \
+ } while(0)
/*
@@ -853,52 +786,43 @@
*/
void freeif(netif *ifs) {
netif *currif = ifs;
+ netif *child = NULL;
while (currif != NULL) {
netaddr *addrP = currif->addr;
while (addrP != NULL) {
netaddr *next = addrP->next;
- if (addrP->addr != NULL)
- free(addrP->addr);
- if (addrP->brdcast != NULL)
- free(addrP->brdcast);
free(addrP);
addrP = next;
- }
-
- free(currif->name);
+ }
- /*
- * Don't forget to free the sub-interfaces.
- */
- if (currif->childs != NULL) {
- freeif(currif->childs);
- }
+ /*
+ * Don't forget to free the sub-interfaces.
+ */
+ if (currif->childs != NULL) {
+ freeif(currif->childs);
+ }
- ifs = currif->next;
- free(currif);
- currif = ifs;
+ ifs = currif->next;
+ free(currif);
+ currif = ifs;
}
}
-/*
- * Add an interface to the list. If known interface just link
- * a new netaddr onto the list. If new interface create new
- * netif structure.
- */
-netif *addif(JNIEnv *env, netif *ifs, char *if_name, int index, int family,
- struct sockaddr *new_addrP, int new_addrlen, short prefix) {
- netif *currif = ifs, *parent;
+netif *addif(JNIEnv *env, int sock, const char * if_name, netif *ifs, struct sockaddr* ifr_addrP, int family, short prefix) {
+ netif *currif = ifs, *parent;
netaddr *addrP;
-#ifdef LIFNAMSIZ
- char name[LIFNAMSIZ];
- char vname[LIFNAMSIZ];
-#else
- char name[IFNAMSIZ];
- char vname[IFNAMSIZ];
-#endif
- char *unit;
+
+ #ifdef __solaris__
+ char name[LIFNAMSIZ], vname[LIFNAMSIZ];
+ #else
+ char name[IFNAMSIZ], vname[IFNAMSIZ];
+ #endif
+
+ char *name_colonP;
+ int mask;
int isVirtual = 0;
+ int addr_size;
/*
* If the interface name is a logical interface then we
@@ -908,107 +832,63 @@
* logical interfaces.
*/
strcpy(name, if_name);
+ *vname = 0;
/*
* Create and populate the netaddr node. If allocation fails
* return an un-updated list.
*/
- addrP = (netaddr *)malloc(sizeof(netaddr));
- if (addrP) {
- addrP->addr = (struct sockaddr *)malloc(new_addrlen);
- if (addrP->addr == NULL) {
- free(addrP);
- addrP = NULL;
- }
- }
- if (addrP == NULL) {
- JNU_ThrowOutOfMemoryError(env, "heap allocation failed");
- return ifs; /* return untouched list */
- }
- memcpy(addrP->addr, new_addrP, new_addrlen);
+ /*Allocate for addr and brdcast at once*/
+
+#ifdef AF_INET6
+ addr_size = (family == AF_INET) ? sizeof(struct sockaddr_in) : sizeof(struct sockaddr_in6);
+#else
+ addr_size = sizeof(struct sockaddr_in);
+#endif
+
+ CHECKED_MALLOC3(addrP, netaddr *, sizeof(netaddr)+2*addr_size);
+ addrP->addr = (struct sockaddr *)( (char *) addrP+sizeof(netaddr) );
+ memcpy(addrP->addr, ifr_addrP, addr_size);
+
addrP->family = family;
-
addrP->brdcast = NULL;
addrP->mask = prefix;
+ addrP->next = 0;
if (family == AF_INET) {
/*
* Deal with brodcast addr & subnet mask
*/
- addrP->brdcast = getBroadcast(env, name);
- if (addrP->brdcast) {
- addrP->mask = getSubnet(env, name);
- }
- }
+ struct sockaddr * brdcast_to = (struct sockaddr *) ((char *) addrP + sizeof(netaddr) + addr_size);
+ addrP->brdcast = getBroadcast(env, sock, name, brdcast_to );
- vname[0] = 0;
- unit = strchr(name, ':');
- if (unit != NULL) {
+ if (addrP->brdcast && (mask = getSubnet(env, sock, name)) != -1) {
+ addrP->mask = mask;
+ }
+ }
+
+ /**
+ * Deal with virtual interface with colon notaion e.g. eth0:1
+ */
+ name_colonP = strchr(name, ':');
+ if (name_colonP != NULL) {
/**
* This is a virtual interface. If we are able to access the parent
* we need to create a new entry if it doesn't exist yet *and* update
* the 'parent' interface with the new records.
*/
- struct ifreq if2;
- int sock;
- int len;
-
- sock = JVM_Socket(AF_INET, SOCK_DGRAM, 0);
- if (sock < 0) {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
- "Socket creation failed");
- return ifs; /* return untouched list */
- }
-
- len = unit - name;
- if (len > 0) {
- // temporarily use vname to hold the parent name of the interface
- // instead of creating another buffer.
- memcpy(&vname, name, len);
- vname[len] = '\0';
-
- memset((char *) &if2, 0, sizeof(if2));
- strcpy(if2.ifr_name, vname);
-
- if (ioctl(sock, SIOCGIFFLAGS, (char *)&if2) >= 0) {
- // Got access to parent, so create it if necessary.
- strcpy(vname, name);
- *unit = '\0';
- } else {
-#if defined(__solaris__) && defined(AF_INET6)
- struct lifreq lifr;
- memset((char *) &lifr, 0, sizeof(lifr));
- strcpy(lifr.lifr_name, vname);
-
- /* Try with an IPv6 socket in case the interface has only IPv6
- * addresses assigned to it */
- close(sock);
- sock = JVM_Socket(AF_INET6, SOCK_DGRAM, 0);
-
- if (sock < 0) {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
- "Socket creation failed");
- return ifs; /* return untouched list */
- }
-
- if (ioctl(sock, SIOCGLIFFLAGS, (char *)&lifr) >= 0) {
- // Got access to parent, so create it if necessary.
- strcpy(vname, name);
- *unit = '\0';
- } else {
+ *name_colonP = 0;
+ if (getFlags(env,sock,name) < 0) {
// failed to access parent interface do not create parent.
// We are a virtual interface with no parent.
isVirtual = 1;
- vname[0] = 0;
- }
-#else
- // failed to access parent interface do not create parent.
- // We are a virtual interface with no parent.
- isVirtual = 1;
- vname[0] = 0;
-#endif
+ *name_colonP = ':';
}
- }
- close(sock);
+ else{
+ // Got access to parent, so create it if necessary.
+ // Save original name to vname and truncate name by ':'
+ memcpy(vname, name, sizeof(vname) );
+ vname[name_colonP - name] = ':';
+ }
}
/*
@@ -1028,24 +908,15 @@
* insert it onto the list.
*/
if (currif == NULL) {
- currif = (netif *)malloc(sizeof(netif));
- if (currif) {
- currif->name = strdup(name);
- if (currif->name == NULL) {
- free(currif);
- currif = NULL;
- }
- }
- if (currif == NULL) {
- JNU_ThrowOutOfMemoryError(env, "heap allocation failed");
- return ifs;
- }
- currif->index = index;
- currif->addr = NULL;
- currif->childs = NULL;
- currif->virtual = isVirtual;
- currif->next = ifs;
- ifs = currif;
+ CHECKED_MALLOC3(currif, netif *, sizeof(netif)+IFNAMSIZ );
+ currif->name = (char *) currif+sizeof(netif);
+ strcpy(currif->name, name);
+ currif->index = getIndex(env,sock,name);
+ currif->addr = NULL;
+ currif->childs = NULL;
+ currif->virtual = isVirtual;
+ currif->next = ifs;
+ ifs = currif;
}
/*
@@ -1060,161 +931,251 @@
* Let's deal with the virtual interface now.
*/
if (vname[0]) {
- netaddr *tmpaddr;
+ netaddr *tmpaddr;
- currif = parent->childs;
+ currif = parent->childs;
- while (currif != NULL) {
- if (strcmp(vname, currif->name) == 0) {
- break;
- }
- currif = currif->next;
- }
- if (currif == NULL) {
- currif = (netif *)malloc(sizeof(netif));
- if (currif) {
- currif->name = strdup(vname);
- if (currif->name == NULL) {
- free(currif);
- currif = NULL;
- }
- }
- if (currif == NULL) {
- JNU_ThrowOutOfMemoryError(env, "heap allocation failed");
- return ifs;
+ while (currif != NULL) {
+ if (strcmp(vname, currif->name) == 0) {
+ break;
+ }
+ currif = currif->next;
}
- currif->index = index;
- currif->addr = NULL;
- /* Need to duplicate the addr entry? */
- currif->virtual = 1;
- currif->childs = NULL;
- currif->next = parent->childs;
- parent->childs = currif;
- }
+
+ if (currif == NULL) {
+ CHECKED_MALLOC3(currif, netif *, sizeof(netif)+ IFNAMSIZ );
+ currif->name = (char *) currif + sizeof(netif);
+ strcpy(currif->name, vname);
+ currif->index = getIndex(env,sock,vname);
+ currif->addr = NULL;
+ /* Need to duplicate the addr entry? */
+ currif->virtual = 1;
+ currif->childs = NULL;
+ currif->next = parent->childs;
+ parent->childs = currif;
+ }
- tmpaddr = (netaddr *) malloc(sizeof(netaddr));
- if (tmpaddr == NULL) {
- JNU_ThrowOutOfMemoryError(env, "heap allocation failed");
- return ifs;
- }
- memcpy(tmpaddr, addrP, sizeof(netaddr));
- /**
- * Let's duplicate the address and broadcast address structures
- * if there are any.
- */
- if (addrP->addr != NULL) {
- tmpaddr->addr = malloc(new_addrlen);
- if (tmpaddr->addr != NULL)
- memcpy(tmpaddr->addr, addrP->addr, new_addrlen);
- }
- if (addrP->brdcast != NULL) {
- tmpaddr->brdcast = malloc(new_addrlen);
- if (tmpaddr->brdcast != NULL)
- memcpy(tmpaddr->brdcast, addrP->brdcast, new_addrlen);
- }
- tmpaddr->next = currif->addr;
- currif->addr = tmpaddr;
+ CHECKED_MALLOC3(tmpaddr, netaddr *, sizeof(netaddr)+2*addr_size);
+ memcpy(tmpaddr, addrP, sizeof(netaddr));
+ if (addrP->addr != NULL) {
+ tmpaddr->addr = (struct sockaddr *) ( (char*)tmpaddr + sizeof(netaddr) ) ;
+ memcpy(tmpaddr->addr, addrP->addr, addr_size);
+ }
+
+ if (addrP->brdcast != NULL) {
+ tmpaddr->brdcast = (struct sockaddr *) ((char *) tmpaddr + sizeof(netaddr)+addr_size);
+ memcpy(tmpaddr->brdcast, addrP->brdcast, addr_size);
+ }
+
+ tmpaddr->next = currif->addr;
+ currif->addr = tmpaddr;
}
return ifs;
}
-/**
- * Get flags from a NetworkInterface.
+/* Open socket for further ioct calls
+ * proto is AF_INET/AF_INET6
*/
-static short getFlags(JNIEnv *env, jstring name) {
- int sock;
- struct ifreq if2;
- jboolean isCopy;
- const char* name_utf;
- short ret = -1;
+static int openSocket(JNIEnv *env, int proto){
+ int sock;
+
+ if ((sock = JVM_Socket(proto, SOCK_DGRAM, 0)) < 0) {
+ /*
+ * If EPROTONOSUPPORT is returned it means we don't have
+ * support for this proto so don't throw an exception.
+ */
+ if (errno != EPROTONOSUPPORT) {
+ NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException", "Socket creation failed");
+ }
+ return -1;
+ }
- sock = JVM_Socket(AF_INET, SOCK_DGRAM, 0);
- if (sock < 0) {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
- "Socket creation failed");
- return -1;
- }
+ return sock;
+}
+
+
+/** Linux **/
+#ifdef __linux__
+/* Open socket for further ioct calls, try v4 socket first and
+ * if it falls return v6 socket
+ */
+
+#ifdef AF_INET6
+static int openSocketWithFallback(JNIEnv *env, const char *ifname){
+ int sock;
+ struct ifreq if2;
- name_utf = (*env)->GetStringUTFChars(env, name, &isCopy);
- memset((char *) &if2, 0, sizeof(if2));
- strcpy(if2.ifr_name, name_utf);
+ if ((sock = JVM_Socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
+ if (errno == EPROTONOSUPPORT){
+ if ( (sock = JVM_Socket(AF_INET6, SOCK_DGRAM, 0)) < 0 ){
+ NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException", "IPV6 Socket creation failed");
+ return -1;
+ }
+ }
+ else{ // errno is not NOSUPPORT
+ NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException", "IPV4 Socket creation failed");
+ return -1;
+ }
+ }
+
+ /* Linux starting from 2.6.? kernel allows ioctl call with either IPv4 or IPv6 socket regardless of type
+ of address of an interface */
+
+ return sock;
+}
+
+#else
+static int openSocketWithFallback(JNIEnv *env, const char *ifname){
+ return openSocket(env,AF_INET);
+}
+#endif
- if (ioctl(sock, SIOCGIFFLAGS, (char *)&if2) >= 0) {
- ret = if2.ifr_flags;
- } else {
-#if defined(__solaris__) && defined(AF_INET6)
- /* Try with an IPv6 socket in case the interface has only IPv6 addresses assigned to it */
- struct lifreq lifr;
+static netif *enumIPv4Interfaces(JNIEnv *env, int sock, netif *ifs) {
+ struct ifconf ifc;
+ struct ifreq *ifreqP;
+ char *buf;
+ int numifs;
+ unsigned i;
+
- close(sock);
- sock = JVM_Socket(AF_INET6, SOCK_DGRAM, 0);
+ /* need to do a dummy SIOCGIFCONF to determine the buffer size.
+ * SIOCGIFCOUNT doesn't work
+ */
+ ifc.ifc_buf = NULL;
+ if (ioctl(sock, SIOCGIFCONF, (char *)&ifc) < 0) {
+ NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException", "ioctl SIOCGIFCONF failed");
+ return ifs;
+ }
- if (sock < 0) {
- (*env)->ReleaseStringUTFChars(env, name, name_utf);
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
- "Socket creation failed");
- return -1;
+ CHECKED_MALLOC3(buf,char *, ifc.ifc_len);
+
+ ifc.ifc_buf = buf;
+ if (ioctl(sock, SIOCGIFCONF, (char *)&ifc) < 0) {
+ NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException", "ioctl SIOCGIFCONF failed");
+ (void) free(buf);
+ return ifs;
}
- memset((caddr_t)&lifr, 0, sizeof(lifr));
- strcpy((caddr_t)&(lifr.lifr_name), name_utf);
+ /*
+ * Iterate through each interface
+ */
+ ifreqP = ifc.ifc_req;
+ for (i=0; i<ifc.ifc_len/sizeof (struct ifreq); i++, ifreqP++) {
+ /*
+ * Add to the list
+ */
+ ifs = addif(env, sock, ifreqP->ifr_name, ifs, (struct sockaddr *) & (ifreqP->ifr_addr), AF_INET, 0);
- if (ioctl(sock, SIOCGLIFFLAGS, (char *)&lifr) >= 0) {
- ret = lifr.lifr_flags;
- } else {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
- "IOCTL failed");
+ /*
+ * If an exception occurred then free the list
+ */
+ if ((*env)->ExceptionOccurred(env)) {
+ free(buf);
+ freeif(ifs);
+ return NULL;
+ }
}
-#else
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
- "IOCTL failed");
+
+ /*
+ * Free socket and buffer
+ */
+ free(buf);
+ return ifs;
+}
+
+
+/*
+ * Enumerates and returns all IPv6 interfaces on Linux
+ */
+
+#ifdef AF_INET6
+static netif *enumIPv6Interfaces(JNIEnv *env, int sock, netif *ifs) {
+ FILE *f;
+ char addr6[40], devname[20];
+ char addr6p[8][5];
+ int plen, scope, dad_status, if_idx;
+ uint8_t ipv6addr[16];
+
+ if ((f = fopen(_PATH_PROCNET_IFINET6, "r")) != NULL) {
+ while (fscanf(f, "%4s%4s%4s%4s%4s%4s%4s%4s %02x %02x %02x %02x %20s\n",
+ addr6p[0], addr6p[1], addr6p[2], addr6p[3], addr6p[4], addr6p[5], addr6p[6], addr6p[7],
+ &if_idx, &plen, &scope, &dad_status, devname) != EOF) {
+
+ struct netif *ifs_ptr = NULL;
+ struct netif *last_ptr = NULL;
+ struct sockaddr_in6 addr;
+
+ sprintf(addr6, "%s:%s:%s:%s:%s:%s:%s:%s",
+ addr6p[0], addr6p[1], addr6p[2], addr6p[3], addr6p[4], addr6p[5], addr6p[6], addr6p[7]);
+ inet_pton(AF_INET6, addr6, ipv6addr);
+
+ memset(&addr, 0, sizeof(struct sockaddr_in6));
+ memcpy((void*)addr.sin6_addr.s6_addr, (const void*)ipv6addr, 16);
+
+ addr.sin6_scope_id = if_idx;
+
+ ifs = addif(env, sock, devname, ifs, (struct sockaddr *)&addr, AF_INET6, plen);
+
+
+ /*
+ * If an exception occurred then return the list as is.
+ */
+ if ((*env)->ExceptionOccurred(env)) {
+ fclose(f);
+ return ifs;
+ }
+ }
+ fclose(f);
+ }
+ return ifs;
+}
#endif
- }
- close(sock);
- /* release the UTF string and interface list */
- (*env)->ReleaseStringUTFChars(env, name, name_utf);
+
- return ret;
+static int getIndex(JNIEnv *env, int sock, const char *name){
+ /*
+ * Try to get the interface index
+ * (Not supported on Solaris 2.6 or 7)
+ */
+ struct ifreq if2;
+ strcpy(if2.ifr_name, name);
+
+ if (ioctl(sock, SIOCGIFINDEX, (char *)&if2) < 0) {
+ return -1;
+ }
+
+ return if2.ifr_ifindex;
}
/**
* Returns the IPv4 broadcast address of a named interface, if it exists.
* Returns 0 if it doesn't have one.
*/
-static struct sockaddr *getBroadcast(JNIEnv *env, const char *ifname) {
- int sock;
+static struct sockaddr *getBroadcast(JNIEnv *env, int sock, const char *ifname, struct sockaddr *brdcast_store) {
struct sockaddr *ret = NULL;
struct ifreq if2;
- short flag = 0;
-
- sock = JVM_Socket(AF_INET, SOCK_DGRAM, 0);
- if (sock < 0) {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
- "Socket creation failed");
- return ret;
- }
memset((char *) &if2, 0, sizeof(if2));
strcpy(if2.ifr_name, ifname);
+
/* Let's make sure the interface does have a broadcast address */
- if (ioctl(sock, SIOCGIFFLAGS, (char *)&if2) >= 0) {
- flag = if2.ifr_flags;
- } else {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
- "IOCTL failed");
+ if (ioctl(sock, SIOCGIFFLAGS, (char *)&if2) < 0) {
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException", "IOCTL SIOCGIFFLAGS failed");
+ return ret;
}
- if (flag & IFF_BROADCAST) {
- /* It does, let's retrieve it*/
- if (ioctl(sock, SIOCGIFBRDADDR, (char *)&if2) >= 0) {
- ret = (struct sockaddr*) malloc(sizeof(struct sockaddr));
+
+ if (if2.ifr_flags & IFF_BROADCAST) {
+ /* It does, let's retrieve it*/
+ if (ioctl(sock, SIOCGIFBRDADDR, (char *)&if2) < 0) {
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException", "IOCTL SIOCGIFBRDADDR failed");
+ return ret;
+ }
+
+ ret = brdcast_store;
memcpy(ret, &if2.ifr_broadaddr, sizeof(struct sockaddr));
- } else {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
- "IOCTL failed");
- }
}
- close(sock);
+
return ret;
}
@@ -1222,39 +1183,307 @@
* Returns the IPv4 subnet prefix length (aka subnet mask) for the named
* interface, if it has one, otherwise return -1.
*/
-static short getSubnet(JNIEnv *env, const char *ifname) {
- int sock;
- unsigned int mask;
- short ret;
- struct ifreq if2;
+static short getSubnet(JNIEnv *env, int sock, const char *ifname) {
+ unsigned int mask;
+ short ret;
+ struct ifreq if2;
+
+ memset((char *) &if2, 0, sizeof(if2));
+ strcpy(if2.ifr_name, ifname);
+
+ if (ioctl(sock, SIOCGIFNETMASK, (char *)&if2) < 0) {
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException", "IOCTL SIOCGIFNETMASK failed");
+ return -1;
+ }
+
+ mask = ntohl(((struct sockaddr_in*)&(if2.ifr_addr))->sin_addr.s_addr);
+ ret = 0;
+ while (mask) {
+ mask <<= 1;
+ ret++;
+ }
+
+ return ret;
+}
+
+/**
+ * Get the Hardware address (usually MAC address) for the named interface.
+ * return puts the data in buf, and returns the length, in byte, of the
+ * MAC address. Returns -1 if there is no hardware address on that interface.
+ */
+static int getMacAddress(JNIEnv *env, int sock, const char* ifname, const struct in_addr* addr, unsigned char *buf) {
+ static struct ifreq ifr;
+ int i;
- sock = JVM_Socket(AF_INET, SOCK_DGRAM, 0);
- if (sock < 0) {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
- "Socket creation failed");
+ strcpy(ifr.ifr_name, ifname);
+ if (ioctl(sock, SIOCGIFHWADDR, &ifr) < 0) {
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException", "IOCTL SIOCGIFHWADDR failed");
+ return -1;
+ }
+
+ memcpy(buf, &ifr.ifr_hwaddr.sa_data, IFHWADDRLEN);
+
+ /*
+ * All bytes to 0 means no hardware address.
+ */
+
+ for (i = 0; i < IFHWADDRLEN; i++) {
+ if (buf[i] != 0)
+ return IFHWADDRLEN;
+ }
+
return -1;
- }
+}
+
+static int getMTU(JNIEnv *env, int sock, const char *ifname) {
+ struct ifreq if2;
+
+ memset((char *) &if2, 0, sizeof(if2));
+ strcpy(if2.ifr_name, ifname);
+
+ if (ioctl(sock, SIOCGIFMTU, (char *)&if2) < 0) {
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException", "IOCTL SIOCGIFMTU failed");
+ return -1;
+ }
+
+ return if2.ifr_mtu;
+}
+
+static int getFlags(JNIEnv *env, int sock, const char *ifname) {
+ struct ifreq if2;
+ int ret = -1;
memset((char *) &if2, 0, sizeof(if2));
strcpy(if2.ifr_name, ifname);
- if (ioctl(sock, SIOCGIFNETMASK, (char *)&if2) >= 0) {
- mask = ntohl(((struct sockaddr_in*)&(if2.ifr_addr))->sin_addr.s_addr);
- ret = 0;
- while (mask) {
- mask <<= 1;
- ret++;
+
+ if (ioctl(sock, SIOCGIFFLAGS, (char *)&if2) < 0){
+ return -1;
+ }
+
+ return if2.ifr_flags;
+}
+
+#endif
+
+/** Solaris **/
+#ifdef __solaris__
+/* Open socket for further ioct calls, try v4 socket first and
+ * if it falls return v6 socket
+ */
+
+#ifdef AF_INET6
+static int openSocketWithFallback(JNIEnv *env, const char *ifname){
+ int sock, alreadyV6 = 0;
+ struct lifreq if2;
+
+ if ((sock = JVM_Socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
+ if (errno == EPROTONOSUPPORT){
+ if ( (sock = JVM_Socket(AF_INET6, SOCK_DGRAM, 0)) < 0 ){
+ NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException", "IPV6 Socket creation failed");
+ return -1;
+ }
+
+ alreadyV6=1;
+ }
+ else{ // errno is not NOSUPPORT
+ NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException", "IPV4 Socket creation failed");
+ return -1;
+ }
+ }
+
+ /**
+ * Solaris requires that we have IPv6 socket to query an
+ * interface without IPv4 address - check it here
+ * POSIX 1 require the kernell to return ENOTTY if the call is
+ * unappropriate for device e.g. NETMASK for device having IPv6
+ * only address but not all devices follows the standart so
+ * fallback on any error. It's not an ecology friendly but more
+ * reliable.
+ */
+
+ if (! alreadyV6 ){
+ memset((char *) &if2, 0, sizeof(if2));
+ strcpy(if2.lifr_name, ifname);
+ if (ioctl(sock, SIOCGLIFNETMASK, (char *)&if2) < 0) {
+ close(sock);
+ if ( (sock = JVM_Socket(AF_INET6, SOCK_DGRAM, 0)) < 0 ){
+ NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException", "IPV6 Socket creation failed");
+ return -1;
+ }
+ }
}
- close(sock);
- return ret;
- }
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
- "IOCTL failed");
- close(sock);
- return -1;
+
+ return sock;
+}
+
+#else
+static int openSocketWithFallback(JNIEnv *env, const char *ifname){
+ return openSocket(env,AF_INET);
+}
+#endif
+
+/*
+ * Enumerates and returns all IPv4 interfaces
+ * (linux verison)
+ */
+
+static netif *enumIPv4Interfaces(JNIEnv *env, int sock, netif *ifs) {
+ return enumIPvXInterfaces(env,sock, ifs, AF_INET);
}
-#ifdef __solaris__
-#define DEV_PREFIX "/dev/"
+#ifdef AF_INET6
+static netif *enumIPv6Interfaces(JNIEnv *env, int sock, netif *ifs) {
+ return enumIPvXInterfaces(env,sock, ifs, AF_INET6);
+}
+#endif
+
+/*
+ Enumerates and returns all interfaces on Solaris
+ use the same code for IPv4 and IPv6
+ */
+static netif *enumIPvXInterfaces(JNIEnv *env, int sock, netif *ifs, int family) {
+ struct lifconf ifc;
+ struct lifreq *ifr;
+ int n;
+ char *buf;
+ struct lifnum numifs;
+ unsigned bufsize;
+
+ /*
+ * Get the interface count
+ */
+ numifs.lifn_family = family;
+ numifs.lifn_flags = 0;
+ if (ioctl(sock, SIOCGLIFNUM, (char *)&numifs) < 0) {
+ NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException", "ioctl SIOCGLIFNUM failed");
+ return ifs;
+ }
+
+ /*
+ * Enumerate the interface configurations
+ */
+ bufsize = numifs.lifn_count * sizeof (struct lifreq);
+ CHECKED_MALLOC3(buf, char *, bufsize);
+
+ ifc.lifc_family = family;
+ ifc.lifc_flags = 0;
+ ifc.lifc_len = bufsize;
+ ifc.lifc_buf = buf;
+ if (ioctl(sock, SIOCGLIFCONF, (char *)&ifc) < 0) {
+ NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException", "ioctl SIOCGLIFCONF failed");
+ free(buf);
+ return ifs;
+ }
+
+ /*
+ * Iterate through each interface
+ */
+ ifr = ifc.lifc_req;
+ for (n=0; n<numifs.lifn_count; n++, ifr++) {
+ int index = -1;
+ struct lifreq if2;
+
+ /*
+ * Ignore either IPv4 or IPv6 addresses
+ */
+ if (ifr->lifr_addr.ss_family != family) {
+ continue;
+ }
+
+ /* add to the list */
+ ifs = addif(env, sock,ifr->lifr_name, ifs, (struct sockaddr *)&(ifr->lifr_addr),family, (short) ifr->lifr_addrlen);
+
+ /*
+ * If an exception occurred we return immediately
+ */
+ if ((*env)->ExceptionOccurred(env)) {
+ free(buf);
+ return ifs;
+ }
+
+ }
+
+ free(buf);
+ return ifs;
+}
+
+static int getIndex(JNIEnv *env, int sock, const char *name){
+ /*
+ * Try to get the interface index
+ * (Not supported on Solaris 2.6 or 7)
+ */
+ struct lifreq if2;
+ strcpy(if2.lifr_name, name);
+
+ if (ioctl(sock, SIOCGLIFINDEX, (char *)&if2) < 0) {
+ return -1;
+ }
+
+ return if2.lifr_index;
+}
+
+/**
+ * Returns the IPv4 broadcast address of a named interface, if it exists.
+ * Returns 0 if it doesn't have one.
+ */
+static struct sockaddr *getBroadcast(JNIEnv *env, int sock, const char *ifname, struct sockaddr *brdcast_store) {
+ struct sockaddr *ret = NULL;
+ struct lifreq if2;
+
+ memset((char *) &if2, 0, sizeof(if2));
+ strcpy(if2.lifr_name, ifname);
+
+ /* Let's make sure the interface does have a broadcast address */
+ if (ioctl(sock, SIOCGLIFFLAGS, (char *)&if2) < 0) {
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException", "IOCTL SIOCGLIFFLAGS failed");
+ return ret;
+ }
+
+ if (if2.lifr_flags & IFF_BROADCAST) {
+ /* It does, let's retrieve it*/
+ if (ioctl(sock, SIOCGLIFBRDADDR, (char *)&if2) < 0) {
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException", "IOCTL SIOCGLIFBRDADDR failed");
+ return ret;
+ }
+
+ ret = brdcast_store;
+ memcpy(ret, &if2.lifr_broadaddr, sizeof(struct sockaddr));
+ }
+
+ return ret;
+}
+
+/**
+ * Returns the IPv4 subnet prefix length (aka subnet mask) for the named
+ * interface, if it has one, otherwise return -1.
+ */
+static short getSubnet(JNIEnv *env, int sock, const char *ifname) {
+ unsigned int mask;
+ short ret;
+ struct lifreq if2;
+
+ memset((char *) &if2, 0, sizeof(if2));
+ strcpy(if2.lifr_name, ifname);
+
+ if (ioctl(sock, SIOCGLIFNETMASK, (char *)&if2) < 0) {
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException", "IOCTL SIOCGLIFNETMASK failed");
+ return -1;
+ }
+
+ mask = ntohl(((struct sockaddr_in*)&(if2.lifr_addr))->sin_addr.s_addr);
+ ret = 0;
+
+ while (mask) {
+ mask <<= 1;
+ ret++;
+ }
+
+ return ret;
+}
+
+
+
+#define DEV_PREFIX "/dev/"
/**
* Solaris specific DLPI code to get hardware address from a device.
@@ -1262,306 +1491,147 @@
* privileges (i.e. be root).
*/
static int getMacFromDevice(JNIEnv *env, const char* ifname, unsigned char* retbuf) {
- char style1dev[MAXPATHLEN];
- int fd;
- dl_phys_addr_req_t dlpareq;
- dl_phys_addr_ack_t *dlpaack;
- struct strbuf msg;
- char buf[128];
- int flags = 0;
+ char style1dev[MAXPATHLEN];
+ int fd;
+ dl_phys_addr_req_t dlpareq;
+ dl_phys_addr_ack_t *dlpaack;
+ struct strbuf msg;
+ char buf[128];
+ int flags = 0;
+
+ /**
+ * Device is in /dev
+ * e.g.: /dev/bge0
+ */
+ strcpy(style1dev, DEV_PREFIX);
+ strcat(style1dev, ifname);
+ if ((fd = open(style1dev, O_RDWR)) < 0) {
+ /*
+ * Can't open it. We probably are missing the privilege.
+ * We'll have to try something else
+ */
+ return 0;
+ }
+
+ dlpareq.dl_primitive = DL_PHYS_ADDR_REQ;
+ dlpareq.dl_addr_type = DL_CURR_PHYS_ADDR;
- /**
- * Device is in /dev
- * e.g.: /dev/bge0
- */
- strcpy(style1dev, DEV_PREFIX);
- strcat(style1dev, ifname);
- if ((fd = open(style1dev, O_RDWR)) == -1) {
- /*
- * Can't open it. We probably are missing the privilege.
- * We'll have to try something else
- */
- return 0;
- }
- dlpareq.dl_primitive = DL_PHYS_ADDR_REQ;
- dlpareq.dl_addr_type = DL_CURR_PHYS_ADDR;
- msg.buf = (char *)&dlpareq;
- msg.len = DL_PHYS_ADDR_REQ_SIZE;
- if (putmsg(fd, &msg, NULL, 0) < 0) {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
- "putmsg failed");
- return -1;
- }
- dlpaack = (dl_phys_addr_ack_t *)buf;
- msg.buf = (char *)buf;
- msg.len = 0;
- msg.maxlen = sizeof (buf);
- if (getmsg(fd, &msg, NULL, &flags) < 0) {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
- "getmsg failed");
- return -1;
- }
- if (msg.len < DL_PHYS_ADDR_ACK_SIZE ||
- dlpaack->dl_primitive != DL_PHYS_ADDR_ACK) {
- JNU_ThrowByName(env, JNU_JAVANETPKG "SocketException",
- "Couldn't obtain phys addr\n");
- return -1;
- }
+ msg.buf = (char *)&dlpareq;
+ msg.len = DL_PHYS_ADDR_REQ_SIZE;
+
+ if (putmsg(fd, &msg, NULL, 0) < 0) {
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException", "putmsg failed");
+ return -1;
+ }
+
+ dlpaack = (dl_phys_addr_ack_t *)buf;
- memcpy(retbuf, &buf[dlpaack->dl_addr_offset], dlpaack->dl_addr_length);
- return dlpaack->dl_addr_length;
+ msg.buf = (char *)buf;
+ msg.len = 0;
+ msg.maxlen = sizeof (buf);
+ if (getmsg(fd, &msg, NULL, &flags) < 0) {
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException", "getmsg failed");
+ return -1;
+ }
+
+ if (msg.len < DL_PHYS_ADDR_ACK_SIZE || dlpaack->dl_primitive != DL_PHYS_ADDR_ACK) {
+ JNU_ThrowByName(env, JNU_JAVANETPKG "SocketException", "Couldn't obtain phys addr\n");
+ return -1;
+ }
+
+ memcpy(retbuf, &buf[dlpaack->dl_addr_offset], dlpaack->dl_addr_length);
+ return dlpaack->dl_addr_length;
}
-#endif
/**
* Get the Hardware address (usually MAC address) for the named interface.
* return puts the data in buf, and returns the length, in byte, of the
* MAC address. Returns -1 if there is no hardware address on that interface.
*/
-int getMacAddress(JNIEnv *env, const struct in_addr* addr, const char* ifname,
- unsigned char *buf) {
- int sock;
-#ifdef __linux__
- static struct ifreq ifr;
- int i;
+static int getMacAddress(JNIEnv *env, int sock, const char *ifname, const struct in_addr* addr, unsigned char *buf) {
+ struct arpreq arpreq;
+ struct sockaddr_in* sin;
+ struct sockaddr_in ipAddr;
+ int len, i;
+
+ /**
+ * On Solaris we have to use DLPI, but it will only work if we have
+ * privileged access (i.e. root). If that fails, we try a lookup
+ * in the ARP table, which requires an IPv4 address.
+ */
+ if ((len = getMacFromDevice(env, ifname, buf)) == 0) {
+ /*DLPI failed - trying to do arp lookup*/
+
+ if (addr == NULL) {
+ /**
+ * No IPv4 address for that interface, so can't do an ARP lookup.
+ */
+ return -1;
+ }
- sock = JVM_Socket(AF_INET, SOCK_DGRAM, 0);
+ len = 6; //???
+
+ sin = (struct sockaddr_in *) &arpreq.arp_pa;
+ memset((char *) &arpreq, 0, sizeof(struct arpreq));
+ ipAddr.sin_port = 0;
+ ipAddr.sin_family = AF_INET;
+ memcpy(&ipAddr.sin_addr, addr, sizeof(struct in_addr));
+ memcpy(&arpreq.arp_pa, &ipAddr, sizeof(struct sockaddr_in));
+ arpreq.arp_flags= ATF_PUBL;
- if (sock < 0) {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
- "Socket creation failed");
- return -1;
+ if (ioctl(sock, SIOCGARP, &arpreq) < 0) {
+ if (errno != ENXIO) {
+ // "No such device or address" means no hardware address, so it's
+ // normal don't throw an exception
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException", "IOCTL failed");
+ return -1;
+ }
+ }
+
+ memcpy(buf, &arpreq.arp_ha.sa_data[0], len );
}
- strcpy(ifr.ifr_name, ifname);
-
- if (ioctl(sock, SIOCGIFHWADDR, &ifr) < 0) {
- fprintf(stderr, "SIOCIFHWADDR: %s\n",
- strerror(errno));
- close(sock);
- return -1;
- }
- memcpy(buf, &ifr.ifr_hwaddr.sa_data, IFHWADDRLEN);
- close(sock);
- for (i = 0; i < IFHWADDRLEN; i++) {
- if (buf[i] != 0)
- return IFHWADDRLEN;
- }
- /*
- * All bytes to 0 means no hardware address.
- */
- return -1;
-#else
- struct arpreq arpreq;
- struct sockaddr_in* sin;
- struct sockaddr_in ipAddr;
- int len;
-
- /**
- * On Solaris we have to use DLPI, but it will only work if we have
- * privileged access (i.e. root). If that fails, we try a lookup
- * in the ARP table, which requires an IPv4 address.
- */
- if ((len = getMacFromDevice(env, ifname, buf)) > 0) {
- return len;
- }
- if (addr == NULL) {
- /**
- * No IPv4 address for that interface, so can't do an ARP lookup.
+ /*
+ * All bytes to 0 means no hardware address.
*/
- return -1;
- }
- sin = (struct sockaddr_in *) &arpreq.arp_pa;
- memset((char *) &arpreq, 0, sizeof(struct arpreq));
- ipAddr.sin_port = 0;
- ipAddr.sin_family = AF_INET;
- memcpy(&ipAddr.sin_addr, addr, sizeof(struct in_addr));
- memcpy(&arpreq.arp_pa, &ipAddr, sizeof(struct sockaddr_in));
- arpreq.arp_flags= ATF_PUBL;
- sock = JVM_Socket(AF_INET, SOCK_DGRAM, 0);
-
- if (sock < 0) {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
- "Socket creation failed");
- return -1;
- }
- if (ioctl(sock, SIOCGARP, &arpreq) >= 0) {
- close(sock);
- memcpy(buf, &arpreq.arp_ha.sa_data[0], 6);
- return 6;
- }
-
- if (errno != ENXIO) {
- // "No such device or address" means no hardware address, so it's
- // normal don't throw an exception
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
- "IOCTL failed");
- }
- close(sock);
-#endif
- return -1;
-}
-
-/*
- * Class: java_net_NetworkInterface
- * Method: isUp0
- * Signature: (Ljava/lang/String;I)Z
- */
-JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_isUp0
- (JNIEnv *env, jclass cls, jstring name, jint index) {
- short val;
+ for (i = 0; i < len; i++) {
+ if (buf[i] != 0)
+ return len;
+ }
- val = getFlags(env, name);
- if ( (val & IFF_UP) && (val & IFF_RUNNING))
- return JNI_TRUE;
- return JNI_FALSE;
-}
-
-/*
- * Class: java_net_NetworkInterface
- * Method: isP2P0
- * Signature: (Ljava/lang/String;I)Z
- */
-JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_isP2P0
- (JNIEnv *env, jclass cls, jstring name, jint index) {
- if (getFlags(env, name) & IFF_POINTOPOINT)
- return JNI_TRUE;
- return JNI_FALSE;
-}
-
-/*
- * Class: java_net_NetworkInterface
- * Method: isLoopback0
- * Signature: (Ljava/lang/String;I)Z
- */
-JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_isLoopback0
- (JNIEnv *env, jclass cls, jstring name, jint index) {
- if (getFlags(env, name) & IFF_LOOPBACK)
- return JNI_TRUE;
- return JNI_FALSE;
+ return -1;
}
-/*
- * Class: java_net_NetworkInterface
- * Method: supportsMulticast0
- * Signature: (Ljava/lang/String;I)Z
- */
-JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_supportsMulticast0
-(JNIEnv *env, jclass cls, jstring name, jint index) {
- short val;
+static int getMTU(JNIEnv *env, int sock, const char *ifname) {
+ struct lifreq if2;
- val = getFlags(env, name);
- if (val & IFF_MULTICAST)
- return JNI_TRUE;
- return JNI_FALSE;
-}
+ memset((char *) &if2, 0, sizeof(if2));
+ strcpy(if2.lifr_name, ifname);
-/*
- * Class: java_net_NetworkInterface
- * Method: getMacAddr0
- * Signature: ([bLjava/lang/String;I)[b
- */
-JNIEXPORT jbyteArray JNICALL Java_java_net_NetworkInterface_getMacAddr0(JNIEnv *env, jclass class, jbyteArray addrArray, jstring name, jint index) {
- jint addr;
- jbyte caddr[4];
- struct in_addr iaddr;
- jbyteArray ret = NULL;
- unsigned char mac[16];
- int len;
- jboolean isCopy;
- const char* name_utf = (*env)->GetStringUTFChars(env, name, &isCopy);
+ if (ioctl(sock, SIOCGLIFMTU, (char *)&if2) < 0) {
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException", "IOCTL SIOCGLIFMTU failed");
+ return -1;
+ }
- if (!IS_NULL(addrArray)) {
- (*env)->GetByteArrayRegion(env, addrArray, 0, 4, caddr);
- addr = ((caddr[0]<<24) & 0xff000000);
- addr |= ((caddr[1] <<16) & 0xff0000);
- addr |= ((caddr[2] <<8) & 0xff00);
- addr |= (caddr[3] & 0xff);
- iaddr.s_addr = htonl(addr);
- len = getMacAddress(env, &iaddr, name_utf, mac);
- } else {
- len = getMacAddress(env, NULL, name_utf, mac);
- }
- if (len > 0) {
- ret = (*env)->NewByteArray(env, len);
- if (IS_NULL(ret)) {
- /* we may have memory to free at the end of this */
- goto fexit;
- }
- (*env)->SetByteArrayRegion(env, ret, 0, len, (jbyte *) (mac));
- }
- fexit:
- /* release the UTF string and interface list */
- (*env)->ReleaseStringUTFChars(env, name, name_utf);
- return ret;
+ return if2.lifr_mtu;
}
-/*
- * Class: java_net_NetworkInterface
- * Method: getMTU0
- * Signature: ([bLjava/lang/String;I)I
- */
-JNIEXPORT jint JNICALL Java_java_net_NetworkInterface_getMTU0(JNIEnv *env, jclass class, jstring name, jint index) {
- jboolean isCopy;
- int sock;
- struct ifreq if2;
- int ret = -1;
- const char* name_utf = (*env)->GetStringUTFChars(env, name, &isCopy);
-
- sock = JVM_Socket(AF_INET, SOCK_DGRAM, 0);
- if (sock < 0) {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
- "Socket creation failed");
- } else {
-
-#ifdef __linux__
- memset((char *) &if2, 0, sizeof(if2));
- strcpy(if2.ifr_name, name_utf);
+static int getFlags(JNIEnv *env, int sock, const char *ifname) {
+ struct lifreq lifr;
+ memset((caddr_t)&lifr, 0, sizeof(lifr));
+ strcpy((caddr_t)&(lifr.lifr_name), ifname);
- if (ioctl(sock, SIOCGIFMTU, (char *)&if2) >= 0) {
- ret= if2.ifr_mtu;
- } else {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
- "IOCTL failed");
- }
-#else /* Solaris */
- struct lifreq lifr;
- memset((caddr_t)&lifr, 0, sizeof(lifr));
- strcpy((caddr_t)&(lifr.lifr_name), name_utf);
- if (ioctl(sock, SIOCGLIFMTU, (caddr_t)&lifr) >= 0) {
- ret = lifr.lifr_mtu;
-#ifdef AF_INET6
- } else {
- /* Try wIth an IPv6 socket in case the interface has only IPv6 addresses assigned to it */
- close(sock);
- sock = JVM_Socket(AF_INET6, SOCK_DGRAM, 0);
+ if (ioctl(sock, SIOCGLIFFLAGS, (char *)&lifr) < 0) {
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException", "IOCTL SIOCGLIFFLAGS failed");
+ return -1;
+ }
- if (sock < 0) {
- (*env)->ReleaseStringUTFChars(env, name, name_utf);
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
- "Socket creation failed");
- return -1;
- }
+ return lifr.lifr_flags;
+}
+
- if (ioctl(sock, SIOCGLIFMTU, (caddr_t)&lifr) >= 0) {
- ret = lifr.lifr_mtu;
- } else {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
- "IOCTL failed");
- }
- }
-#else
- } else {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
- "IOCTL failed");
- }
#endif
-#endif
- close(sock);
- }
- /* release the UTF string and interface list */
- (*env)->ReleaseStringUTFChars(env, name, name_utf);
- return ret;
-}
+
+