mirror of https://github.com/sipwise/jitsi.git
Add getHardwareAddress to the NetworkAddress service that wraps NetworkInterface.getHardwareAddress if it exists otherwise via a JNI.
Sebastien Vincent
16 years ago
parent
5fba65be8c
commit
fbaa48424b
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/*
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* SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
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*
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* Distributable under LGPL license.
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* See terms of license at gnu.org.
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*/
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/**
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* \file HardwareAddressRetriever.h
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* \brief Hardware address retriever.
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* \author Sebastien Vincent
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* \date 2010
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*/
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#ifndef HARDWARE_ADDRESS_RETRIEVER_H
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#define HARDWARE_ADDRESS_RETRIEVER_H
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#include <jni.h>
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/**
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* \brief Returns the hardware address for the specified interface.
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* \param env JNI environment
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* \param ifName name of the interface that we want to get the hardware address
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* \return byte array representing hardware address or NULL if not found or
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* system related errors happen.
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*/
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jbyteArray getHardwareAddress(JNIEnv* env, jstring ifName);
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#endif /* HARDWARE_ADDRESS_RETRIEVER_H */
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/*
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* SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
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*
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* Distributable under LGPL license.
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* See terms of license at gnu.org.
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*/
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/**
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* \file HardwareAddressRetriever_unix.c
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* \brief Hardware address retriever (Unix specific code).
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* \author Sebastien Vincent
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* \date 2010
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*/
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#if !defined(_WIN32) && !defined(_WIN64)
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdint.h>
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#include <unistd.h>
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#include <sys/socket.h>
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <net/if.h>
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#if defined(__FreeBSD__) || defined(__APPLE__)
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#include <ifaddrs.h>
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#include <net/if_dl.h>
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#include <net/route.h>
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#include <net/if_types.h>
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#endif
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#include "HardwareAddressRetriever.h"
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jbyteArray getHardwareAddress(JNIEnv* env, jstring ifName)
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{
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int sock = -1;
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struct ifreq ifr;
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jbyteArray hwaddr = NULL;
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char* name = NULL;
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jbyte* addr = NULL;
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int hwlen = 6;
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name = (char*)(*env)->GetStringUTFChars(env, ifName, NULL);
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if(!name)
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{
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return NULL;
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}
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#ifdef __linux__
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sock = socket(AF_INET, SOCK_DGRAM, 0);
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if(sock == -1)
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{
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(*env)->ReleaseStringUTFChars(env, ifName, name);
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return NULL;
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}
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memset(&ifr, 0x00, sizeof(struct ifreq));
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strncpy(ifr.ifr_name, name, IFNAMSIZ - 1);
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ifr.ifr_name[IFNAMSIZ - 1] = 0x00;
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if(ioctl(sock, SIOCGIFHWADDR, &ifr) != 0)
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{
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(*env)->ReleaseStringUTFChars(env, ifName, name);
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close(sock);
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return NULL;
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}
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close(sock);
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addr = (const jbyte*)ifr.ifr_hwaddr.sa_data;
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#else /* BSD like */
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struct ifaddrs* addrs = NULL;
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struct ifaddrs* ifa = NULL;
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jbyte buf[hwlen];
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if(getifaddrs(&addrs) != -1)
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{
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for(ifa = addrs ; ifa != NULL ; ifa = ifa->ifa_next)
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{
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if(ifa->ifa_addr->sa_family == AF_LINK && !strcmp(ifa->ifa_name, name))
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{
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struct sockaddr_dl* sdl = (struct sockaddr_dl*)ifa->ifa_addr;
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if(sdl->sdl_type == IFT_ETHER)
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{
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memcpy(buf, LLADDR(sdl), hwlen);
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addr = buf;
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break;
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}
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}
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}
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freeifaddrs(addrs);
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}
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#endif
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if(addr)
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{
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hwaddr = (*env)->NewByteArray(env, hwlen);
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if(hwaddr)
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{
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/* copy the hardware address and return it */
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(*env)->SetByteArrayRegion(env, hwaddr, 0, hwlen, addr);
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}
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}
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/* cleanup */
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(*env)->ReleaseStringUTFChars(env, ifName, name);
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return hwaddr;
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}
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#endif
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@ -0,0 +1,125 @@
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/*
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* SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
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*
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* Distributable under LGPL license.
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* See terms of license at gnu.org.
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*/
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/**
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* \file HardwareAddressRetriever_win.c
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* \brief Hardware address retriever (Windows specific code).
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* \author Sebastien Vincent
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* \date 2010
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*/
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#if defined(_WIN32) || defined(_WIN64)
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/**
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* \def WIN32_LEAN_AND_MEAN
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* \brief Exclude not commonly used headers from win32 API.
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*
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* It excludes some unused stuff from windows headers and
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* by the way code compiles faster.
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*/
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#define WIN32_LEAN_AND_MEAN
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#include <stdlib.h>
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#include <windows.h>
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#include <ws2tcpip.h>
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#include <iphlpapi.h>
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#include "HardwareAddressRetriever.h"
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jbyteArray getHardwareAddress(JNIEnv* env, jstring ifName)
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{
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MIB_IFTABLE* ifTable = NULL;
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ULONG size = 15000;
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int found = 0;
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jbyteArray hwaddr = NULL;
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DWORD ret = 0;
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DWORD i = 0;
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WCHAR* wname = NULL;
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MIB_IFROW ifi;
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jclass clazz = (*env)->GetObjectClass(env, ifName);
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jmethodID method = (*env)->GetMethodID(env, clazz, "compareTo", "(Ljava/lang/String;)I");
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if(method == NULL)
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{
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return NULL;
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}
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memset(&ifi, 0x00, sizeof(MIB_IFROW));
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do
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{
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ifTable = malloc(size);
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if(!ifTable)
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{
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/* out of memory */
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return NULL;
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}
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ret = GetIfTable(ifTable, &size, 1);
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}while(ret == ERROR_INSUFFICIENT_BUFFER);
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if(ret != ERROR_SUCCESS)
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{
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free(ifTable);
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return NULL;
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}
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for(i = 0 ; i < ifTable->dwNumEntries ; i++)
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{
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jstring tmp = NULL;
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ifi = ifTable->table[i];
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if(ifi.dwType == IF_TYPE_OTHER)
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{
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continue;
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}
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/* jstring created by NewStringUTF will be garbage collected at
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* the end of the function
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*/
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tmp = (*env)->NewStringUTF(env, ifi.bDescr);
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if(!tmp)
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{
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/* printf("error\n"); */
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continue;
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}
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if((*env)->CallIntMethod(env, ifName, method, tmp) == 0)
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{
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found = 1;
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break;
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}
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}
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if(found)
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{
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DWORD hwlen = ifi.dwPhysAddrLen;
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if(hwlen > 0)
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{
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hwaddr = (*env)->NewByteArray(env, hwlen);
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if(hwaddr)
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{
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/* copy the hardware address and return it */
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(*env)->SetByteArrayRegion(env, hwaddr, 0, hwlen, ifi.bPhysAddr);
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}
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}
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}
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/* cleanup */
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free(ifTable);
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return hwaddr;
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}
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#endif
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@ -0,0 +1,35 @@
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/*
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* SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
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*
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* Distributable under LGPL license.
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* See terms of license at gnu.org.
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*/
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/**
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* \file net_java_sip_communicator_impl_netaddr_HardwareAddressRetriever.h
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* \brief Hardware address retriever.
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* \author Sebastien Vincent
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* \date 2010
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <jni.h>
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#include "HardwareAddressRetriever.h"
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/**
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* \brief Returns the byte array representing hardware address.
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* \param env JVM environment
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* \param clazz Java class
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* \param ifName name of the interface
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* \return byte array representing the hardware address or NULL if anything
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* goes wrong
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*/
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JNIEXPORT jbyteArray JNICALL Java_net_java_sip_communicator_impl_netaddr_HardwareAddressRetriever_getHardwareAddress
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(JNIEnv* env, jclass clazz, jstring ifName)
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{
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return getHardwareAddress(env, ifName);
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}
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@ -0,0 +1,21 @@
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/* DO NOT EDIT THIS FILE - it is machine generated */
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#include <jni.h>
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/* Header for class net_java_sip_communicator_impl_netaddr_HardwareAddressRetriever */
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#ifndef _Included_net_java_sip_communicator_impl_netaddr_HardwareAddressRetriever
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#define _Included_net_java_sip_communicator_impl_netaddr_HardwareAddressRetriever
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Class: net_java_sip_communicator_impl_netaddr_HardwareAddressRetriever
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* Method: getHardwareAddress
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* Signature: (Ljava/lang/String;)[B
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*/
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JNIEXPORT jbyteArray JNICALL Java_net_java_sip_communicator_impl_netaddr_HardwareAddressRetriever_getHardwareAddress
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(JNIEnv *, jclass, jstring);
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#ifdef __cplusplus
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}
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#endif
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#endif
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@ -0,0 +1,33 @@
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/*
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* SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
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*
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* Distributable under LGPL license.
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* See terms of license at gnu.org.
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*/
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package net.java.sip.communicator.impl.netaddr;
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/**
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* Class to retrieve hardware address of a specific interface.
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*
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* We know that starting Java 6, NetworkInterface has getHardwareAddress method
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* but as we still support Java 5 we have to do it ourself.
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*
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* @author Sebastien Vincent
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*/
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public class HardwareAddressRetriever
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{
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/* load library */
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static
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{
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System.loadLibrary("hwaddressretriever");
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}
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/**
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* Returns the hardware address of a particular interface.
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*
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* @param ifName name of the interface
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* @return byte array representing the hardware address of the interface or
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* null if interface is not found or other system related errors
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*/
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public static native byte[] getHardwareAddress(String ifName);
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}
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