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提交 f579b6a4 编写于 作者: C clanger
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8160174: java.net.NetworkInterface - fixes and improvements for network interface listing 

Reviewed-by: chegar
上级 76d193f3
隐藏空白更改
内联 并排
Showing with 598 addition and 562 deletion
src/solaris/native/java/net/NetworkInterface.c
浏览文件 @ f579b6a4
......@@ -25,9 +25,6 @@
#include <errno.h>
#include <strings.h>
#if defined(_ALLBSD_SOURCE) && defined(__OpenBSD__)
#include <sys/types.h>
#endif
#include <netinet/in.h>
#include <stdlib.h>
#include <string.h>
......@@ -46,7 +43,6 @@
#if defined(__linux__)
#include <sys/ioctl.h>
#include <bits/ioctls.h>
#include <sys/utsname.h>
#include <stdio.h>
#endif
......@@ -76,9 +72,23 @@
#include "net_util.h"
#if defined(__linux__)
#define _PATH_PROCNET_IFINET6 "/proc/net/if_inet6"
#define _PATH_PROCNET_IFINET6 "/proc/net/if_inet6"
#elif defined(__solaris__)
#ifndef SIOCGLIFHWADDR
#define SIOCGLIFHWADDR _IOWR('i', 192, struct lifreq)
#endif
#define DEV_PREFIX "/dev/"
#endif
#define CHECKED_MALLOC3(_pointer, _type, _size) \
do { \
_pointer = (_type)malloc(_size); \
if (_pointer == NULL) { \
JNU_ThrowOutOfMemoryError(env, "Native heap allocation failed"); \
return ifs; /* return untouched list */ \
} \
} while(0)
typedef struct _netaddr {
struct sockaddr *addr;
struct sockaddr *brdcast;
......@@ -135,38 +145,31 @@ static int getFlags0(JNIEnv *env, jstring ifname);
static netif *enumInterfaces(JNIEnv *env);
static netif *enumIPv4Interfaces(JNIEnv *env, int sock, netif *ifs);
#ifdef AF_INET6
#if defined(AF_INET6)
static netif *enumIPv6Interfaces(JNIEnv *env, int sock, netif *ifs);
#endif
static netif *addif(JNIEnv *env, int sock, const char *if_name, netif *ifs,
struct sockaddr *ifr_addrP, int family, short prefix);
struct sockaddr *ifr_addrP,
struct sockaddr *ifr_broadaddrP,
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 short translateIPv4AddressToPrefix(struct sockaddr_in *addr);
static short translateIPv6AddressToPrefix(struct sockaddr_in6 *addr);
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(int sock, const char *ifname);
static int getFlags(int sock, const char *ifname, int *flags);
static int getMacAddress(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);
#if defined(__solaris__)
static netif *enumIPvXInterfaces(JNIEnv *env, int sock, netif *ifs, int family);
static int getMacFromDevice(JNIEnv *env, const char *ifname,
unsigned char *retbuf);
#ifndef SIOCGLIFHWADDR
#define SIOCGLIFHWADDR _IOWR('i', 192, struct lifreq)
#endif
#endif
/******************* Java entry points *****************************/
......@@ -276,7 +279,7 @@ JNIEXPORT jobject JNICALL Java_java_net_NetworkInterface_getByName0
}
// if found create a NetworkInterface
if (curr != NULL) {;
if (curr != NULL) {
obj = createNetworkInterface(env, curr);
}
......@@ -317,7 +320,7 @@ JNIEXPORT jobject JNICALL Java_java_net_NetworkInterface_getByIndex0
}
// if found create a NetworkInterface
if (curr != NULL) {;
if (curr != NULL) {
obj = createNetworkInterface(env, curr);
}
......@@ -335,7 +338,7 @@ JNIEXPORT jobject JNICALL Java_java_net_NetworkInterface_getByInetAddress0
{
netif *ifs, *curr;
#ifdef AF_INET6
#if defined(AF_INET6)
int family = (getInetAddress_family(env, iaObj) == IPv4) ? AF_INET : AF_INET6;
#else
int family = AF_INET;
......@@ -353,7 +356,7 @@ JNIEXPORT jobject JNICALL Java_java_net_NetworkInterface_getByInetAddress0
while (curr != NULL) {
netaddr *addrP = curr->addr;
// Iterate through each address on the interface
// iterate through each address on the interface
while (addrP != NULL) {
if (family == addrP->family) {
......@@ -368,7 +371,7 @@ JNIEXPORT jobject JNICALL Java_java_net_NetworkInterface_getByInetAddress0
}
}
#ifdef AF_INET6
#if defined(AF_INET6)
if (family == AF_INET6) {
jbyte *bytes = (jbyte *)&(
((struct sockaddr_in6*)addrP->addr)->sin6_addr);
......@@ -403,7 +406,7 @@ JNIEXPORT jobject JNICALL Java_java_net_NetworkInterface_getByInetAddress0
}
// if found create a NetworkInterface
if (match) {;
if (match) {
obj = createNetworkInterface(env, curr);
}
......@@ -651,7 +654,7 @@ static int getFlags0(JNIEnv *env, jstring name) {
* populates the InetAddress array based on the IP addresses for this
* interface.
*/
jobject createNetworkInterface(JNIEnv *env, netif *ifs) {
static jobject createNetworkInterface(JNIEnv *env, netif *ifs) {
jobject netifObj;
jobject name;
jobjectArray addrArr;
......@@ -729,7 +732,7 @@ jobject createNetworkInterface(JNIEnv *env, netif *ifs) {
}
}
#ifdef AF_INET6
#if defined(AF_INET6)
if (addrP->family == AF_INET6) {
int scope=0;
iaObj = (*env)->NewObject(env, ni_ia6cls, ni_ia6ctrID);
......@@ -820,7 +823,7 @@ static netif *enumInterfaces(JNIEnv *env) {
// return partial list if an exception occurs in the middle of process ???
// If IPv6 is available then enumerate IPv6 addresses.
#ifdef AF_INET6
#if defined(AF_INET6)
// User can disable ipv6 explicitly by -Djava.net.preferIPv4Stack=true,
// so we have to call ipv6_available()
......@@ -846,20 +849,10 @@ static netif *enumInterfaces(JNIEnv *env) {
return ifs;
}
#define CHECKED_MALLOC3(_pointer, _type, _size) \
do { \
_pointer = (_type)malloc(_size); \
if (_pointer == NULL) { \
JNU_ThrowOutOfMemoryError(env, "Native heap allocation failed"); \
return ifs; /* return untouched list */ \
} \
} while(0)
/*
* Frees an interface list (including any attached addresses)
* Frees an interface list (including any attached addresses).
*/
void freeif(netif *ifs) {
static void freeif(netif *ifs) {
netif *currif = ifs;
netif *child = NULL;
......@@ -882,8 +875,10 @@ void freeif(netif *ifs) {
}
}
netif *addif(JNIEnv *env, int sock, const char *if_name, netif *ifs,
struct sockaddr *ifr_addrP, int family, short prefix)
static netif *addif(JNIEnv *env, int sock, const char *if_name, netif *ifs,
struct sockaddr *ifr_addrP,
struct sockaddr *ifr_broadaddrP,
int family, short prefix)
{
netif *currif = ifs, *parent;
netaddr *addrP;
......@@ -897,7 +892,6 @@ netif *addif(JNIEnv *env, int sock, const char *if_name, netif *ifs,
#endif
char *name_colonP;
int mask;
int isVirtual = 0;
int addr_size;
int flags = 0;
......@@ -910,12 +904,12 @@ netif *addif(JNIEnv *env, int sock, const char *if_name, netif *ifs,
name[ifnam_size - 1] = '\0';
*vname = 0;
// Create and populate the netaddr node. If allocation fails
// return an un-updated list.
// Create and populate the netaddr node. If allocation fails
// return an un-updated list.
// Allocate for addr and brdcast at once
// Allocate for addr and brdcast at once
#ifdef AF_INET6
#if defined(AF_INET6)
addr_size = (family == AF_INET) ? sizeof(struct sockaddr_in)
: sizeof(struct sockaddr_in6);
#else
......@@ -927,23 +921,16 @@ netif *addif(JNIEnv *env, int sock, const char *if_name, netif *ifs,
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 broadcast addr & subnet mask
struct sockaddr *brdcast_to =
(struct sockaddr *) ((char *)addrP + sizeof(netaddr) + addr_size);
addrP->brdcast = getBroadcast(env, sock, name, brdcast_to);
if ((*env)->ExceptionCheck(env) == JNI_TRUE) {
return ifs;
}
if ((mask = getSubnet(env, sock, name)) != -1) {
addrP->mask = mask;
} else if((*env)->ExceptionCheck(env)) {
return ifs;
}
}
// for IPv4 add broadcast address
if (family == AF_INET && ifr_broadaddrP != NULL) {
addrP->brdcast = (struct sockaddr *)
((char *)addrP + sizeof(netaddr) + addr_size);
memcpy(addrP->brdcast, ifr_broadaddrP, addr_size);
} else {
addrP->brdcast = NULL;
}
// Deal with virtual interface with colon notation e.g. eth0:1
name_colonP = strchr(name, ':');
......@@ -1042,6 +1029,57 @@ netif *addif(JNIEnv *env, int sock, const char *if_name, netif *ifs,
return ifs;
}
/*
* Determines the prefix value for an AF_INET subnet address.
*/
static short translateIPv4AddressToPrefix(struct sockaddr_in *addr) {
short prefix = 0;
unsigned int mask = ntohl(addr->sin_addr.s_addr);
while (mask) {
mask <<= 1;
prefix++;
}
return prefix;
}
/*
* Determines the prefix value for an AF_INET6 subnet address.
*/
static short translateIPv6AddressToPrefix(struct sockaddr_in6 *addr) {
short prefix = 0;
u_char *addrBytes = (u_char *)&(addr->sin6_addr);
unsigned int byte, bit;
for (byte = 0; byte < sizeof(struct in6_addr); byte++, prefix += 8) {
if (addrBytes[byte] != 0xff) {
break;
}
}
if (byte != sizeof(struct in6_addr)) {
for (bit = 7; bit != 0; bit--, prefix++) {
if (!(addrBytes[byte] & (1 << bit))) {
break;
}
}
for (; bit != 0; bit--) {
if (addrBytes[byte] & (1 << bit)) {
prefix = 0;
break;
}
}
if (prefix > 0) {
byte++;
for (; byte < sizeof(struct in6_addr); byte++) {
if (addrBytes[byte]) {
prefix = 0;
}
}
}
}
return prefix;
}
/*
* Opens a socket for further ioct calls. proto is one of AF_INET or AF_INET6.
*/
......@@ -1061,19 +1099,16 @@ static int openSocket(JNIEnv *env, int proto) {
return sock;
}
/** Linux **/
#if defined(__linux__)
/** Linux, AIX **/
#if defined(__linux__) || defined(_AIX)
#ifdef AF_INET6
#if defined(AF_INET6)
/*
* Opens a socket for further ioct calls. Tries AF_INET socket first and
* if it falls return AF_INET6 socket.
* Opens a socket for further ioctl calls. Tries AF_INET socket first and
* if it fails return AF_INET6 socket.
*/
// unused arg ifname and struct if2
static int openSocketWithFallback(JNIEnv *env, const char *ifname) {
int sock;
struct ifreq if2;
if ((sock = JVM_Socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
if (errno == EPROTONOSUPPORT) {
......@@ -1093,63 +1128,82 @@ static int openSocketWithFallback(JNIEnv *env, const char *ifname) {
// 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);
return openSocket(env, AF_INET);
}
#endif
/*
* Enumerates and returns all IPv4 interfaces on Linux.
*/
static netif *enumIPv4Interfaces(JNIEnv *env, int sock, netif *ifs) {
struct ifconf ifc;
struct ifreq *ifreqP;
char *buf = NULL;
int numifs;
unsigned i;
int siocgifconfRequest = SIOCGIFCONF;
#if defined(__linux__)
// need to do a dummy SIOCGIFCONF to determine the buffer size.
// 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;
}
#elif defined(_AIX)
ifc.ifc_buf = NULL;
if (ioctl(sock, SIOCGSIZIFCONF, &(ifc.ifc_len)) < 0) {
NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
"ioctl SIOCGSIZIFCONF failed");
NET_ThrowByNameWithLastError
(env, JNU_JAVANETPKG "SocketException", "ioctl(SIOCGIFCONF) failed");
return ifs;
}
#endif /* __linux__ */
// call SIOCGIFCONF to enumerate the interfaces
CHECKED_MALLOC3(buf, char *, ifc.ifc_len);
ifc.ifc_buf = buf;
#if defined(_AIX)
siocgifconfRequest = CSIOCGIFCONF;
#endif
if (ioctl(sock, siocgifconfRequest, (char *)&ifc) < 0) {
NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
"ioctl SIOCGIFCONF failed");
if (ioctl(sock, SIOCGIFCONF, (char *)&ifc) < 0) {
NET_ThrowByNameWithLastError
(env, JNU_JAVANETPKG "SocketException", "ioctl(SIOCGIFCONF) failed");
free(buf);
return ifs;
}
// Iterate through each interface
// iterate through each interface
ifreqP = ifc.ifc_req;
for (i = 0; i < ifc.ifc_len / sizeof(struct ifreq); i++, ifreqP++) {
#if defined(_AIX)
if (ifreqP->ifr_addr.sa_family != AF_INET) continue;
#endif
// Add to the list
struct sockaddr addr, broadaddr, *broadaddrP = NULL;
short prefix = 0;
// ignore non IPv4 interfaces
if (ifreqP->ifr_addr.sa_family != AF_INET) {
continue;
}
// save socket address
memcpy(&addr, &(ifreqP->ifr_addr), sizeof(struct sockaddr));
// determine broadcast address, if applicable
if ((ioctl(sock, SIOCGIFFLAGS, ifreqP) == 0) &&
ifreqP->ifr_flags & IFF_BROADCAST) {
// restore socket address to ifreqP
memcpy(&(ifreqP->ifr_addr), &addr, sizeof(struct sockaddr));
if (ioctl(sock, SIOCGIFBRDADDR, ifreqP) == 0) {
memcpy(&broadaddr, &(ifreqP->ifr_broadaddr),
sizeof(struct sockaddr));
broadaddrP = &broadaddr;
}
}
// restore socket address to ifreqP
memcpy(&(ifreqP->ifr_addr), &addr, sizeof(struct sockaddr));
// determine netmask
if (ioctl(sock, SIOCGIFNETMASK, ifreqP) == 0) {
prefix = translateIPv4AddressToPrefix(
(struct sockaddr_in *)&(ifreqP->ifr_netmask));
}
// add interface to the list
ifs = addif(env, sock, ifreqP->ifr_name, ifs,
(struct sockaddr *)&(ifreqP->ifr_addr), AF_INET, 0);
&addr, broadaddrP, AF_INET, prefix);
// If an exception occurred then free the list
// in case of exception, free interface list and buffer and return NULL
if ((*env)->ExceptionOccurred(env)) {
free(buf);
freeif(ifs);
......@@ -1157,23 +1211,20 @@ static netif *enumIPv4Interfaces(JNIEnv *env, int sock, netif *ifs) {
}
}
// Free socket and buffer
// free buffer
free(buf);
return ifs;
}
#if defined(AF_INET6) && defined(__linux__)
#if defined(AF_INET6)
/*
* Enumerates and returns all IPv6 interfaces on Linux.
*/
static netif *enumIPv6Interfaces(JNIEnv *env, int sock, netif *ifs) {
FILE *f;
char addr6[40], devname[21];
char addr6p[8][5];
char devname[21], addr6p[8][5];
int prefix, 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 %08x %02x %02x %02x %20s\n",
......@@ -1181,108 +1232,216 @@ static netif *enumIPv6Interfaces(JNIEnv *env, int sock, netif *ifs) {
addr6p[4], addr6p[5], addr6p[6], addr6p[7],
&if_idx, &prefix, &scope, &dad_status, devname) != EOF) {
struct netif *ifs_ptr = NULL;
struct netif *last_ptr = NULL;
char addr6[40];
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);
inet_pton(AF_INET6, addr6, (void*)addr.sin6_addr.s6_addr);
// set scope ID to interface index
addr.sin6_scope_id = if_idx;
// add interface to the list
ifs = addif(env, sock, devname, ifs, (struct sockaddr *)&addr,
AF_INET6, (short)prefix);
NULL, AF_INET6, (short)prefix);
// If an exception occurred then return the list as is.
// if an exception occurred then return the list as is
if ((*env)->ExceptionOccurred(env)) {
fclose(f);
return ifs;
break;
}
}
fclose(f);
}
return ifs;
}
#endif
#endif /* AF_INET6 */
#if defined(AF_INET6) && defined(_AIX)
/*
* Try to get the interface index.
*/
static int getIndex(int sock, const char *name) {
struct ifreq if2;
memset((char *)&if2, 0, sizeof(if2));
strncpy(if2.ifr_name, name, sizeof(if2.ifr_name) - 1);
if (ioctl(sock, SIOCGIFINDEX, (char *)&if2) < 0) {
return -1;
}
return if2.ifr_ifindex;
}
/*
* Enumerates and returns all IPv6 interfaces on AIX.
* Gets the Hardware address (usually MAC address) for the named interface.
* On 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 netif *enumIPv6Interfaces(JNIEnv *env, int sock, netif *ifs) {
static int getMacAddress
(JNIEnv *env, int sock, const char *ifname, const struct in_addr *addr,
unsigned char *buf)
{
static struct ifreq ifr;
int i;
memset((char *)&ifr, 0, sizeof(ifr));
strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name) - 1);
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));
strncpy(if2.ifr_name, ifname, sizeof(if2.ifr_name) - 1);
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(int sock, const char *ifname, int *flags) {
struct ifreq if2;
memset((char *)&if2, 0, sizeof(if2));
strncpy(if2.ifr_name, ifname, sizeof(if2.ifr_name) - 1);
if (ioctl(sock, SIOCGIFFLAGS, (char *)&if2) < 0) {
return -1;
}
if (sizeof(if2.ifr_flags) == sizeof(short)) {
*flags = (if2.ifr_flags & 0xffff);
} else {
*flags = if2.ifr_flags;
}
return 0;
}
#endif /* __linux__ */
/** AIX **/
#if defined(_AIX)
#if defined(AF_INET6)
/*
* Opens a socket for further ioctl calls. Tries AF_INET socket first and
* if it fails return AF_INET6 socket.
*/
static int openSocketWithFallback(JNIEnv *env, const char *ifname) {
int sock;
if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
if (errno == EPROTONOSUPPORT) {
if ((sock = 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;
}
}
return sock;
}
#else
static int openSocketWithFallback(JNIEnv *env, const char *ifname) {
return openSocket(env, AF_INET);
}
#endif
/*
* Enumerates and returns all IPv4 interfaces on AIX.
*/
static netif *enumIPv4Interfaces(JNIEnv *env, int sock, netif *ifs) {
struct ifconf ifc;
struct ifreq *ifreqP;
char *buf;
int numifs;
char *buf = NULL;
unsigned i;
unsigned bufsize;
char *cp, *cplimit;
// use SIOCGSIZIFCONF to get size for SIOCGIFCONF
ifc.ifc_buf = NULL;
// call SIOCGSIZIFCONF to get the size of SIOCGIFCONF buffer
if (ioctl(sock, SIOCGSIZIFCONF, &(ifc.ifc_len)) < 0) {
NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
"ioctl SIOCGSIZIFCONF failed");
NET_ThrowByNameWithLastError
(env, JNU_JAVANETPKG "SocketException", "ioctl(SIOCGSIZIFCONF) failed");
return ifs;
}
bufsize = ifc.ifc_len;
buf = (char *)malloc(bufsize);
if (!buf) {
JNU_ThrowOutOfMemoryError(env, "Network interface native buffer allocation failed");
return ifs;
}
ifc.ifc_len = bufsize;
// call CSIOCGIFCONF instead of SIOCGIFCONF where interface
// records will always have sizeof(struct ifreq) length.
// Be aware that only IPv4 data is complete this way.
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 CSIOCGIFCONF failed");
if (ioctl(sock, CSIOCGIFCONF, (char *)&ifc) < 0) {
NET_ThrowByNameWithLastError
(env, JNU_JAVANETPKG "SocketException", "ioctl(CSIOCGIFCONF) failed");
free(buf);
return ifs;
}
// Iterate through each interface
// iterate through each interface
ifreqP = ifc.ifc_req;
cp = (char *)ifc.ifc_req;
cplimit = cp + ifc.ifc_len;
for (i = 0; i < ifc.ifc_len / sizeof(struct ifreq); i++, ifreqP++) {
struct sockaddr addr, broadaddr, *broadaddrP = NULL;
short prefix = 0;
for (; cp < cplimit;
cp += (sizeof(ifreqP->ifr_name) +
MAX((ifreqP->ifr_addr).sa_len, sizeof(ifreqP->ifr_addr))))
{
ifreqP = (struct ifreq *)cp;
struct ifreq if2;
memset((char *)&if2, 0, sizeof(if2));
strncpy(if2.ifr_name, ifreqP->ifr_name, sizeof(if2.ifr_name) - 1);
// ignore non IPv4 interfaces
if (ifreqP->ifr_addr.sa_family != AF_INET) {
continue;
}
// save socket address
memcpy(&addr, &(ifreqP->ifr_addr), sizeof(struct sockaddr));
// Skip interface that aren't UP
if (ioctl(sock, SIOCGIFFLAGS, (char *)&if2) >= 0) {
if (!(if2.ifr_flags & IFF_UP)) {
continue;
// determine broadcast address, if applicable
if ((ioctl(sock, SIOCGIFFLAGS, ifreqP) == 0) &&
ifreqP->ifr_flags & IFF_BROADCAST) {
// restore socket address to ifreqP
memcpy(&(ifreqP->ifr_addr), &addr, sizeof(struct sockaddr));
if (ioctl(sock, SIOCGIFBRDADDR, ifreqP) == 0) {
memcpy(&broadaddr, &(ifreqP->ifr_broadaddr),
sizeof(struct sockaddr));
broadaddrP = &broadaddr;
}
}
if (ifreqP->ifr_addr.sa_family != AF_INET6)
continue;
// restore socket address to ifreqP
memcpy(&(ifreqP->ifr_addr), &addr, sizeof(struct sockaddr));
if (ioctl(sock, SIOCGIFSITE6, (char *)&if2) >= 0) {
struct sockaddr_in6 *s6= (struct sockaddr_in6 *)&(ifreqP->ifr_addr);
s6->sin6_scope_id = if2.ifr_site6;
// determine netmask
if (ioctl(sock, SIOCGIFNETMASK, ifreqP) == 0) {
prefix = translateIPv4AddressToPrefix(
(struct sockaddr_in *)&(ifreqP->ifr_addr));
}
// Add to the list
// add interface to the list
ifs = addif(env, sock, ifreqP->ifr_name, ifs,
(struct sockaddr *)&(ifreqP->ifr_addr), AF_INET6, 0);
&addr, broadaddrP, AF_INET, prefix);
// If an exception occurred then free the list
// in case of exception, free interface list and buffer and return NULL
if ((*env)->ExceptionOccurred(env)) {
free(buf);
freeif(ifs);
......@@ -1290,89 +1449,94 @@ static netif *enumIPv6Interfaces(JNIEnv *env, int sock, netif *ifs) {
}
}
// Free socket and buffer
// free buffer
free(buf);
return ifs;
}
#endif
#if defined(AF_INET6)
static int getIndex(int sock, const char *name) {
// Try to get the interface index
#if defined(_AIX)
return if_nametoindex(name);
#else
struct ifreq if2;
memset((char *)&if2, 0, sizeof(if2));
strncpy(if2.ifr_name, name, sizeof(if2.ifr_name) - 1);
/*
* Enumerates and returns all IPv6 interfaces on AIX.
*/
static netif *enumIPv6Interfaces(JNIEnv *env, int sock, netif *ifs) {
struct ifconf ifc;
struct ifreq *ifreqP;
char *buf;
if (ioctl(sock, SIOCGIFINDEX, (char *)&if2) < 0) {
return -1;
// call SIOCGSIZIFCONF to get size for SIOCGIFCONF buffer
if (ioctl(sock, SIOCGSIZIFCONF, &(ifc.ifc_len)) < 0) {
NET_ThrowByNameWithLastError
(env, JNU_JAVANETPKG "SocketException", "ioctl(SIOCGSIZIFCONF) failed");
return ifs;
}
return if2.ifr_ifindex;
#endif
}
// call SIOCGIFCONF to enumerate the interfaces
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");
free(buf);
return ifs;
}
/*
* 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 ifreq if2;
memset((char *)&if2, 0, sizeof(if2));
strncpy(if2.ifr_name, ifname, sizeof(if2.ifr_name) - 1);
// iterate through each interface
char *cp = (char *)ifc.ifc_req;
char *cplimit = cp + ifc.ifc_len;
// Let's make sure the interface does have a broadcast address.
if (ioctl(sock, SIOCGIFFLAGS, (char *)&if2) < 0) {
NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
"ioctl SIOCGIFFLAGS failed");
return ret;
}
for (; cp < cplimit;
cp += (sizeof(ifreqP->ifr_name) +
MAX((ifreqP->ifr_addr).sa_len, sizeof(ifreqP->ifr_addr))))
{
ifreqP = (struct ifreq *)cp;
short prefix = 0;
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;
// ignore non IPv6 interfaces
if (ifreqP->ifr_addr.sa_family != AF_INET6) {
continue;
}
ret = brdcast_store;
memcpy(ret, &if2.ifr_broadaddr, sizeof(struct sockaddr));
}
// determine netmask
struct in6_ifreq if6;
memset((char *)&if6, 0, sizeof(if6));
strncpy(if6.ifr_name, ifreqP->ifr_name, sizeof(if6.ifr_name) - 1);
memcpy(&(if6.ifr_Addr), &(ifreqP->ifr_addr),
sizeof(struct sockaddr_in6));
if (ioctl(sock, SIOCGIFNETMASK6, (char *)&if6) >= 0) {
prefix = translateIPv6AddressToPrefix(&(if6.ifr_Addr));
}
return ret;
}
// set scope ID to interface index
((struct sockaddr_in6 *)&(ifreqP->ifr_addr))->sin6_scope_id =
getIndex(sock, ifreqP->ifr_name);
/*
* 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 ifreq if2;
memset((char *)&if2, 0, sizeof(if2));
strncpy(if2.ifr_name, ifname, sizeof(if2.ifr_name) - 1);
// add interface to the list
ifs = addif(env, sock, ifreqP->ifr_name, ifs,
(struct sockaddr *)&(ifreqP->ifr_addr),
NULL, AF_INET6, prefix);
if (ioctl(sock, SIOCGIFNETMASK, (char *)&if2) < 0) {
NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
"ioctl SIOCGIFNETMASK failed");
return -1;
// if an exception occurred then free the list
if ((*env)->ExceptionOccurred(env)) {
free(buf);
freeif(ifs);
return NULL;
}
}
mask = ntohl(((struct sockaddr_in*)&(if2.ifr_addr))->sin_addr.s_addr);
ret = 0;
while (mask) {
mask <<= 1;
ret++;
}
// free buffer
free(buf);
return ifs;
}
return ret;
#endif /* AF_INET6 */
/*
* Try to get the interface index.
*/
static int getIndex(int sock, const char *name) {
int index = if_nametoindex(name);
return (index == 0) ? -1 : index;
}
/*
......@@ -1381,10 +1545,9 @@ static short getSubnet(JNIEnv *env, int sock, const char *ifname) {
* 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,
(JNIEnv *env, int sock, const char *ifname, const struct in_addr *addr,
unsigned char *buf)
{
#if defined (_AIX)
int size;
struct kinfo_ndd *nddp;
void *end;
......@@ -1424,48 +1587,20 @@ static int getMacAddress
}
return -1;
#elif defined(__linux__)
static struct ifreq ifr;
int i;
memset((char *)&ifr, 0, sizeof(ifr));
strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name) - 1);
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;
#endif
}
static int getMTU(JNIEnv *env, int sock, const char *ifname) {
static int getMTU(JNIEnv *env, int sock, const char *ifname) {
struct ifreq if2;
memset((char *)&if2, 0, sizeof(if2));
if (ifname != NULL) {
strncpy(if2.ifr_name, ifname, sizeof(if2.ifr_name) - 1);
} else {
JNU_ThrowNullPointerException(env, "network interface name is NULL");
return -1;
}
strncpy(if2.ifr_name, ifname, sizeof(if2.ifr_name) - 1);
if (ioctl(sock, SIOCGIFMTU, (char *)&if2) < 0) {
NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
"IOCTL SIOCGIFMTU failed");
NET_ThrowByNameWithLastError
(env, JNU_JAVANETPKG "SocketException", "ioctl(SIOCGIFMTU) failed");
return -1;
}
return if2.ifr_mtu;
return if2.ifr_mtu;
}
static int getFlags(int sock, const char *ifname, int *flags) {
......@@ -1485,16 +1620,16 @@ static int getFlags(int sock, const char *ifname, int *flags) {
return 0;
}
#endif /* defined(__linux__) || defined(_AIX) */
#endif /* _AIX */
/** Solaris **/
#if defined(__solaris__)
#if defined(AF_INET6)
/*
* Opens a socket for further ioct calls. Tries AF_INET socket first and
* if it falls return AF_INET6 socket.
* Opens a socket for further ioctl calls. Tries AF_INET socket first and
* if it fails return AF_INET6 socket.
*/
#ifdef AF_INET6
static int openSocketWithFallback(JNIEnv *env, const char *ifname) {
int sock, alreadyV6 = 0;
struct lifreq if2;
......@@ -1502,35 +1637,32 @@ static int openSocketWithFallback(JNIEnv *env, const char *ifname) {
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");
NET_ThrowByNameWithLastError
(env, JNU_JAVANETPKG "SocketException", "IPV6 Socket creation failed");
return -1;
}
alreadyV6=1;
alreadyV6 = 1;
} else { // errno is not NOSUPPORT
NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
"IPV4 Socket creation failed");
NET_ThrowByNameWithLastError
(env, JNU_JAVANETPKG "SocketException", "IPV4 Socket creation failed");
return -1;
}
}
// Solaris requires that we have an IPv6 socket to query an interface
// without an IPv4 address - check it here. POSIX 1 require the kernel to
// return ENOTTY if the call is inappropriate for a device e.g. the NETMASK
// for a device having IPv6 only address but not all devices follow the
// standard so fall back on any error. It's not an ecologically friendly
// gesture but more reliable.
if (!alreadyV6) {
memset((char *)&if2, 0, sizeof(if2));
strncpy(if2.lifr_name, ifname, sizeof(if2.lifr_name) - 1);
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");
NET_ThrowByNameWithLastError
(env, JNU_JAVANETPKG "SocketException", "IPV6 Socket creation failed");
return -1;
}
}
......@@ -1538,182 +1670,175 @@ static int openSocketWithFallback(JNIEnv *env, const char *ifname) {
return sock;
}
#else
static int openSocketWithFallback(JNIEnv *env, const char *ifname) {
return openSocket(env,AF_INET);
return openSocket(env, AF_INET);
}
#endif
/*
* Enumerates and returns all IPv4 interfaces.
* Enumerates and returns all IPv4 interfaces on Solaris.
*/
static netif *enumIPv4Interfaces(JNIEnv *env, int sock, netif *ifs) {
return enumIPvXInterfaces(env,sock, ifs, AF_INET);
}
#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.
* Uses 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 lifreq *ifreqP;
struct lifnum numifs;
unsigned bufsize;
char *buf = NULL;
unsigned i;
// Get the interface count
numifs.lifn_family = family;
// call SIOCGLIFNUM to get the size of SIOCGIFCONF buffer
numifs.lifn_family = AF_INET;
numifs.lifn_flags = 0;
if (ioctl(sock, SIOCGLIFNUM, (char *)&numifs) < 0) {
NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
"ioctl SIOCGLIFNUM failed");
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;
// call SIOCGLIFCONF to enumerate the interfaces
ifc.lifc_len = numifs.lifn_count * sizeof(struct lifreq);
CHECKED_MALLOC3(buf, char *, ifc.lifc_len);
ifc.lifc_buf = buf;
ifc.lifc_family = AF_INET;
ifc.lifc_flags = 0;
if (ioctl(sock, SIOCGLIFCONF, (char *)&ifc) < 0) {
NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
"ioctl SIOCGLIFCONF failed");
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;
// iterate through each interface
ifreqP = ifc.lifc_req;
for (i = 0; i < numifs.lifn_count; i++, ifreqP++) {
struct sockaddr addr, *broadaddrP = NULL;
// Ignore either IPv4 or IPv6 addresses
if (ifr->lifr_addr.ss_family != family) {
// ignore non IPv4 interfaces
if (ifreqP->lifr_addr.ss_family != AF_INET) {
continue;
}
#ifdef AF_INET6
if (ifr->lifr_addr.ss_family == AF_INET6) {
struct sockaddr_in6 *s6= (struct sockaddr_in6 *)&(ifr->lifr_addr);
s6->sin6_scope_id = getIndex(sock, ifr->lifr_name);
// save socket address
memcpy(&addr, &(ifreqP->lifr_addr), sizeof(struct sockaddr));
// determine broadcast address, if applicable
if ((ioctl(sock, SIOCGLIFFLAGS, ifreqP) == 0) &&
ifreqP->lifr_flags & IFF_BROADCAST) {
// restore socket address to ifreqP
memcpy(&(ifreqP->lifr_addr), &addr, sizeof(struct sockaddr));
// query broadcast address and set pointer to it
if (ioctl(sock, SIOCGLIFBRDADDR, ifreqP) == 0) {
broadaddrP = (struct sockaddr *)&(ifreqP->lifr_broadaddr);
}
}
#endif
// add to the list
ifs = addif(env, sock,ifr->lifr_name, ifs,
(struct sockaddr *)&(ifr->lifr_addr), family,
(short)ifr->lifr_addrlen);
ifs = addif(env, sock, ifreqP->lifr_name, ifs,
&addr, broadaddrP, AF_INET, (short)ifreqP->lifr_addrlen);
// If an exception occurred we return immediately
// if an exception occurred we return immediately
if ((*env)->ExceptionOccurred(env)) {
free(buf);
return ifs;
}
}
// free buffer
free(buf);
return ifs;
}
static int getIndex(int sock, const char *name) {
// Try to get the interface index. (Not supported on Solaris 2.6 or 7)
struct lifreq if2;
memset((char *)&if2, 0, sizeof(if2));
strncpy(if2.lifr_name, name, sizeof(if2.lifr_name) - 1);
if (ioctl(sock, SIOCGLIFINDEX, (char *)&if2) < 0) {
return -1;
}
return if2.lifr_index;
}
#if defined(AF_INET6)
/*
* Returns the IPv4 broadcast address of a named interface, if it exists.
* Returns 0 if it doesn't have one.
* Enumerates and returns all IPv6 interfaces on Solaris.
*/
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));
strncpy(if2.lifr_name, ifname, sizeof(if2.lifr_name) - 1);
static netif *enumIPv6Interfaces(JNIEnv *env, int sock, netif *ifs) {
struct lifconf ifc;
struct lifreq *ifreqP;
struct lifnum numifs;
char *buf = NULL;
unsigned i;
// 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;
// call SIOCGLIFNUM to get the size of SIOCGLIFCONF buffer
numifs.lifn_family = AF_INET6;
numifs.lifn_flags = 0;
if (ioctl(sock, SIOCGLIFNUM, (char *)&numifs) < 0) {
NET_ThrowByNameWithLastError
(env, JNU_JAVANETPKG "SocketException", "ioctl(SIOCGLIFNUM) failed");
return ifs;
}
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;
// call SIOCGLIFCONF to enumerate the interfaces
ifc.lifc_len = numifs.lifn_count * sizeof(struct lifreq);
CHECKED_MALLOC3(buf, char *, ifc.lifc_len);
ifc.lifc_buf = buf;
ifc.lifc_family = AF_INET6;
ifc.lifc_flags = 0;
if (ioctl(sock, SIOCGLIFCONF, (char *)&ifc) < 0) {
NET_ThrowByNameWithLastError
(env, JNU_JAVANETPKG "SocketException", "ioctl(SIOCGLIFCONF) failed");
free(buf);
return ifs;
}
// iterate through each interface
ifreqP = ifc.lifc_req;
for (i = 0; i < numifs.lifn_count; i++, ifreqP++) {
// ignore non IPv6 interfaces
if (ifreqP->lifr_addr.ss_family != AF_INET6) {
continue;
}
ret = brdcast_store;
memcpy(ret, &if2.lifr_broadaddr, sizeof(struct sockaddr));
}
// set scope ID to interface index
((struct sockaddr_in6 *)&(ifreqP->lifr_addr))->sin6_scope_id =
getIndex(sock, ifreqP->lifr_name);
return ret;
// add to the list
ifs = addif(env, sock, ifreqP->lifr_name, ifs,
(struct sockaddr *)&(ifreqP->lifr_addr),
NULL, AF_INET6, (short)ifreqP->lifr_addrlen);
// if an exception occurred we return immediately
if ((*env)->ExceptionOccurred(env)) {
free(buf);
return ifs;
}
}
// free buffer
free(buf);
return ifs;
}
#endif /* AF_INET6 */
/*
* Returns the IPv4 subnet prefix length (aka subnet mask) for the named
* interface, if it has one, otherwise return -1.
* Try to get the interface index.
* (Not supported on Solaris 2.6 or 7)
*/
static short getSubnet(JNIEnv *env, int sock, const char *ifname) {
unsigned int mask;
short ret;
static int getIndex(int sock, const char *name) {
struct lifreq if2;
memset((char *)&if2, 0, sizeof(if2));
strncpy(if2.lifr_name, ifname, sizeof(if2.lifr_name) - 1);
strncpy(if2.lifr_name, name, sizeof(if2.lifr_name) - 1);
if (ioctl(sock, SIOCGLIFNETMASK, (char *)&if2) < 0) {
NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
"ioctl SIOCGLIFNETMASK failed");
if (ioctl(sock, SIOCGLIFINDEX, (char *)&if2) < 0) {
return -1;
}
mask = ntohl(((struct sockaddr_in*)&(if2.lifr_addr))->sin_addr.s_addr);
ret = 0;
while (mask) {
mask <<= 1;
ret++;
}
return ret;
return if2.lifr_index;
}
#define DEV_PREFIX "/dev/"
/*
* Solaris specific DLPI code to get hardware address from a device.
* Unfortunately, at least up to Solaris X, you have to have special
* privileges (i.e. be root).
*/
static int getMacFromDevice
(JNIEnv *env, const char* ifname, unsigned char* retbuf)
(JNIEnv *env, const char *ifname, unsigned char *retbuf)
{
char style1dev[MAXPATHLEN];
int fd;
......@@ -1739,8 +1864,8 @@ static int getMacFromDevice
msg.len = DL_PHYS_ADDR_REQ_SIZE;
if (putmsg(fd, &msg, NULL, 0) < 0) {
NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
"putmsg failed");
NET_ThrowByNameWithLastError
(env, JNU_JAVANETPKG "SocketException", "putmsg() failed");
return -1;
}
......@@ -1750,8 +1875,8 @@ static int getMacFromDevice
msg.len = 0;
msg.maxlen = sizeof (buf);
if (getmsg(fd, &msg, NULL, &flags) < 0) {
NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
"getmsg failed");
NET_ThrowByNameWithLastError
(env, JNU_JAVANETPKG "SocketException", "getmsg() failed");
return -1;
}
......@@ -1771,23 +1896,20 @@ static int getMacFromDevice
* 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,
(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;
struct lifreq if2;
int len, i;
struct lifreq lif;
// First, try the new (S11) SIOCGLIFHWADDR ioctl(). If that fails
// try the old way.
memset(&lif, 0, sizeof(lif));
strlcpy(lif.lifr_name, ifname, sizeof(lif.lifr_name));
memset((char *)&if2, 0, sizeof(if2));
strncpy(if2.lifr_name, ifname, sizeof(if2.lifr_name) - 1);
if (ioctl(sock, SIOCGLIFHWADDR, &lif) != -1) {
if (ioctl(sock, SIOCGLIFHWADDR, &if2) != -1) {
struct sockaddr_dl *sp;
sp = (struct sockaddr_dl *)&lif.lifr_addr;
sp = (struct sockaddr_dl *)&if2.lifr_addr;
memcpy(buf, &sp->sdl_data[0], sp->sdl_alen);
return sp->sdl_alen;
}
......@@ -1798,6 +1920,10 @@ static int getMacAddress
if ((len = getMacFromDevice(env, ifname, buf)) == 0) {
// DLPI failed - trying to do arp lookup
struct arpreq arpreq;
struct sockaddr_in *sin;
struct sockaddr_in ipAddr;
if (addr == NULL) {
// No IPv4 address for that interface, so can't do an ARP lookup.
return -1;
......@@ -1805,8 +1931,8 @@ static int getMacAddress
len = 6; //???
sin = (struct sockaddr_in *) &arpreq.arp_pa;
memset((char *) &arpreq, 0, sizeof(struct arpreq));
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));
......@@ -1817,26 +1943,26 @@ static int getMacAddress
return -1;
}
memcpy(buf, &arpreq.arp_ha.sa_data[0], len );
memcpy(buf, &arpreq.arp_ha.sa_data[0], len);
}
// All bytes to 0 means no hardware address.
// all bytes to 0 means no hardware address
for (i = 0; i < len; i++) {
if (buf[i] != 0)
return len;
if (buf[i] != 0)
return len;
}
return -1;
}
static int getMTU(JNIEnv *env, int sock, const char *ifname) {
static int getMTU(JNIEnv *env, int sock, const char *ifname) {
struct lifreq if2;
memset((char *)&if2, 0, sizeof(if2));
strncpy(if2.lifr_name, ifname, sizeof(if2.lifr_name) - 1);
if (ioctl(sock, SIOCGLIFMTU, (char *)&if2) < 0) {
NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
"ioctl SIOCGLIFMTU failed");
NET_ThrowByNameWithLastError
(env, JNU_JAVANETPKG "SocketException", "ioctl(SIOCGLIFMTU) failed");
return -1;
}
......@@ -1856,67 +1982,73 @@ static int getFlags(int sock, const char *ifname, int *flags) {
return 0;
}
#endif /* __solaris__ */
#endif /* __solaris__ */
/** BSD **/
#ifdef _ALLBSD_SOURCE
#if defined(_ALLBSD_SOURCE)
#if defined(AF_INET6)
/*
* Opens a socket for further ioct calls. Tries AF_INET socket first and
* if it falls return AF_INET6 socket.
* Opens a socket for further ioctl calls. Tries AF_INET socket first and
* if it fails return AF_INET6 socket.
*/
#ifdef AF_INET6
static int openSocketWithFallback(JNIEnv *env, const char *ifname) {
int sock;
struct ifreq 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;
}
} else { // errno is not NOSUPPORT
NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
"IPV4 Socket creation failed");
return -1;
}
}
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;
}
}
return sock;
return sock;
}
#else
static int openSocketWithFallback(JNIEnv *env, const char *ifname) {
return openSocket(env,AF_INET);
return openSocket(env, AF_INET);
}
#endif
/*
* Enumerates and returns all IPv4 interfaces.
* Enumerates and returns all IPv4 interfaces on BSD.
*/
static netif *enumIPv4Interfaces(JNIEnv *env, int sock, netif *ifs) {
struct ifaddrs *ifa, *origifa;
if (getifaddrs(&origifa) != 0) {
NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
"getifaddrs() function failed");
NET_ThrowByNameWithLastError
(env, JNU_JAVANETPKG "SocketException", "getifaddrs() failed");
return ifs;
}
for (ifa = origifa; ifa != NULL; ifa = ifa->ifa_next) {
struct sockaddr *broadaddrP = NULL;
// Skip non-AF_INET entries.
// ignore non IPv4 interfaces
if (ifa->ifa_addr == NULL || ifa->ifa_addr->sa_family != AF_INET)
continue;
// Add to the list.
ifs = addif(env, sock, ifa->ifa_name, ifs, ifa->ifa_addr, AF_INET, 0);
// set ifa_broadaddr, if there is one
if ((ifa->ifa_flags & IFF_POINTOPOINT) == 0 &&
ifa->ifa_flags & IFF_BROADCAST) {
broadaddrP = ifa->ifa_dstaddr;
}
// add interface to the list
ifs = addif(env, sock, ifa->ifa_name, ifs, ifa->ifa_addr,
broadaddrP, AF_INET,
translateIPv4AddressToPrefix((struct sockaddr_in *)
ifa->ifa_netmask));
// If an exception occurred then free the list.
// if an exception occurred then free the list
if ((*env)->ExceptionOccurred(env)) {
freeifaddrs(origifa);
freeif(ifs);
......@@ -1924,76 +2056,41 @@ static netif *enumIPv4Interfaces(JNIEnv *env, int sock, netif *ifs) {
}
}
// Free socket and buffer
// free ifaddrs buffer
freeifaddrs(origifa);
return ifs;
}
#ifdef AF_INET6
/*
* Determines the prefix on BSD for IPv6 interfaces.
*/
static int prefix(void *val, int size) {
u_char *name = (u_char *)val;
int byte, bit, prefix = 0;
for (byte = 0; byte < size; byte++, prefix += 8)
if (name[byte] != 0xff)
break;
if (byte == size)
return prefix;
for (bit = 7; bit != 0; bit--, prefix++)
if (!(name[byte] & (1 << bit)))
break;
for (; bit != 0; bit--)
if (name[byte] & (1 << bit))
return (0);
byte++;
for (; byte < size; byte++)
if (name[byte])
return (0);
return prefix;
}
#if defined(AF_INET6)
/*
* Enumerates and returns all IPv6 interfaces on BSD.
*/
static netif *enumIPv6Interfaces(JNIEnv *env, int sock, netif *ifs) {
struct ifaddrs *ifa, *origifa;
struct sockaddr_in6 *sin6;
struct in6_ifreq ifr6;
if (getifaddrs(&origifa) != 0) {
NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
"getifaddrs() function failed");
NET_ThrowByNameWithLastError
(env, JNU_JAVANETPKG "SocketException", "getifaddrs() failed");
return ifs;
}
for (ifa = origifa; ifa != NULL; ifa = ifa->ifa_next) {
// Skip non-AF_INET6 entries.
// ignore non IPv6 interfaces
if (ifa->ifa_addr == NULL || ifa->ifa_addr->sa_family != AF_INET6)
continue;
memset(&ifr6, 0, sizeof(ifr6));
strlcpy(ifr6.ifr_name, ifa->ifa_name, sizeof(ifr6.ifr_name));
memcpy(&ifr6.ifr_addr, ifa->ifa_addr,
MIN(sizeof(ifr6.ifr_addr), ifa->ifa_addr->sa_len));
if (ioctl(sock, SIOCGIFNETMASK_IN6, (caddr_t)&ifr6) < 0) {
NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
"ioctl SIOCGIFNETMASK_IN6 failed");
freeifaddrs(origifa);
freeif(ifs);
return NULL;
}
// set scope ID to interface index
((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_scope_id =
getIndex(sock, ifa->ifa_name);
// Add to the list.
sin6 = (struct sockaddr_in6 *)&ifr6.ifr_addr;
ifs = addif(env, sock, ifa->ifa_name, ifs, ifa->ifa_addr, AF_INET6,
(short)prefix(&sin6->sin6_addr, sizeof(struct in6_addr)));
// add interface to the list
ifs = addif(env, sock, ifa->ifa_name, ifs, ifa->ifa_addr, NULL,
AF_INET6,
translateIPv6AddressToPrefix((struct sockaddr_in6 *)
ifa->ifa_netmask));
// If an exception occurred then free the list.
// if an exception occurred then free the list
if ((*env)->ExceptionOccurred(env)) {
freeifaddrs(origifa);
freeif(ifs);
......@@ -2001,16 +2098,21 @@ static netif *enumIPv6Interfaces(JNIEnv *env, int sock, netif *ifs) {
}
}
// Free socket and ifaddrs buffer
// free ifaddrs buffer
freeifaddrs(origifa);
return ifs;
}
#endif
#endif /* AF_INET6 */
/*
* Try to get the interface index.
*/
static int getIndex(int sock, const char *name) {
#ifdef __FreeBSD__
// Try to get the interface index
// (Not supported on Solaris 2.6 or 7)
#if !defined(__FreeBSD__)
int index = if_nametoindex(name);
return (index == 0) ? -1 : index;
#else
struct ifreq if2;
memset((char *)&if2, 0, sizeof(if2));
strncpy(if2.ifr_name, name, sizeof(if2.ifr_name) - 1);
......@@ -2020,81 +2122,16 @@ static int getIndex(int sock, const char *name) {
}
return if2.ifr_index;
#else
// Try to get the interface index using BSD specific if_nametoindex
int index = if_nametoindex(name);
return (index == 0) ? -1 : index;
#endif
}
/*
* 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 ifreq if2;
memset((char *)&if2, 0, sizeof(if2));
strncpy(if2.ifr_name, ifname, sizeof(if2.ifr_name) - 1);
// Make sure the interface does have a broadcast address
if (ioctl(sock, SIOCGIFFLAGS, (char *)&if2) < 0) {
NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
"ioctl SIOCGIFFLAGS failed");
return ret;
}
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));
}
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 ifreq if2;
memset((char *)&if2, 0, sizeof(if2));
strncpy(if2.ifr_name, ifname, sizeof(if2.ifr_name) - 1);
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;
}
/*
* Gets the Hardware address (usually MAC address) for the named interface.
* return puts the data in buf, and returns the length, in byte, of the
* On 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,
(JNIEnv *env, int sock, const char *ifname, const struct in_addr *addr,
unsigned char *buf)
{
struct ifaddrs *ifa0, *ifa;
......@@ -2123,23 +2160,22 @@ static int getMacAddress
return -1;
}
static int getMTU(JNIEnv *env, int sock, const char *ifname) {
static int getMTU(JNIEnv *env, int sock, const char *ifname) {
struct ifreq if2;
memset((char *)&if2, 0, sizeof(if2));
strncpy(if2.ifr_name, ifname, sizeof(if2.ifr_name) - 1);
if (ioctl(sock, SIOCGIFMTU, (char *)&if2) < 0) {
NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
"ioctl SIOCGIFMTU failed");
NET_ThrowByNameWithLastError
(env, JNU_JAVANETPKG "SocketException", "ioctl(SIOCGIFMTU) failed");
return -1;
}
return if2.ifr_mtu;
return if2.ifr_mtu;
}
static int getFlags(int sock, const char *ifname, int *flags) {
struct ifreq if2;
int ret = -1;
memset((char *)&if2, 0, sizeof(if2));
strncpy(if2.ifr_name, ifname, sizeof(if2.ifr_name) - 1);
......@@ -2154,4 +2190,4 @@ static int getFlags(int sock, const char *ifname, int *flags) {
}
return 0;
}
#endif /* __ALLBSD_SOURCE__ */
#endif /* _ALLBSD_SOURCE */
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