How to Install JPCap on Linux
2009-04-27 20:18
1311 查看
Jes s e Caulfield
Key Bridge LLC
March 29, 2008
In this tutorial I will de scribe how to ins tall JPCap from source code on Linux (Ubunty 7.10 or Debian
4.0).
JPCap is an open - source Java library released u n de r the GNU LGPL and de signed to enable the
capt uring an d sen ding ne twork packet s in Java. JPCap is developed by Keita Fujii an d the Univer sity
of California and Irvine.
The JPCap home page is h t t p: / / n e t research.ics.uci.edu / kf ujii / jpcap / d oc /
JPCap is a Java Native Library Implement ation (JNI) of the po p ular libpcap library an d sho uld therefor
work on any OS which su p por t s libpcap. libpcap is a user - level packet capture library tha t provides a
commo n, sys tem- indepe n de nt API for low- level network mo ni toring. libpcap is also ope n - source
sof tware developed an d maint ained by TCPDump.org.
We will use JPCap and libpcap on the Linux operating sys tem but the both libraries work on Microsof t
Windows (WinPcap), Linux, FreeBSD, an d Mac OS X.
JPCap su p por t s the following types of network da ta:
Layer 2: Ethernet Datagrams
Layer 3: IPv4 & Ipv6 ARP/RARP
TCP, UDP an d ICMPv4.
JPCap recogni zes the packet types enume rated above but can capt ure any type of ne twork t raffic as a
raw packet (i.e., as an ins tance of the Packet clas s) which contains the Packet's whole da t a. This
feature allows Java a p plications to analyze any packet type.
Step 1: Preparing the System
Following are ins t r uctions to ins tall JPCap on a f resh ins tallation of Ubuntu 7.10 of Debian 4.0.
Ins tall the neces sary developme nt sof tware packages to create a u s able developme nt environme nt:
Ins tall the GNU compiler an d basic libraries
% su do a pt - get ins tall build - es sential
Ins tall the linux pca p library
% su do a pt - get ins tall libpcap0.8
Ins tall the Java SDK from Sun
% su do a pt - get ins tall s un - java6 - sdk
Download the JPCap source and ext ract it into your working directory
ht t p: / / n e t research.ics.uci.edu / kfujii / j pcap / j pcap - 0.7.tar.gz
ht tp: / /KeyBridgeGlobal.com Page 1
Key Bridge LLC
Step 2: Building & Installing the JPCap JNI library
In a terminal window, navigate to the [jpcap] / s rc / c directory. For example:
~ / j pcap - 0.7 / s rc / c
[IMPORTANT] Edit the J***A_DIR Makefile ent ry to point to your version of jni.h
You can find it quickly with the following comma n d:
$ find / u s r - name jni.h
/ u s r / lib / jvm/ j ava - 6 - s un - 1.6.0.03 / include / jni.h
The Makefile sho uld then rea d
J***A_DIR = / u s r / lib / jvm/ j ava - 6 - su n - 1.6.0.03
In the terminal window u n der the [jpcap] / s rc / c di rectory type make to create the share d library
$ make
This will create the file 'libjpcap.so'.
Copy 'libjpcap.so' your sys tem' s Java JNI library directory
'[Java - di r] / j re / lib / < a rch >' where < a rch > is either 'i386' or 'sparc'.
For my ins tallation, this was / u s r / lib / jvm/ j ava - 6 - su n / j re / lib /i386
Another option is to copy the library to the directory where your ap plication is locate d.
Step 3: Building and Installing the JPCap JAR file
In a terminal window, nagivate to the [jpcap] / s rc / j ava directory. For example:
~ / j pcap - 0.7 / s rc / java
There should be one sub directory name d 'jpcap'
Compile all of the .java files in the 'jpcap' and 'jpcap / p acket' di rectories.
$ find . - name "*.java" - exec javac {} / ;
You may see the following er ror for IPPacket.java - ignore it.
"Note: . /jpcap / p acket /IPPacket.java uses u nchecked or u ns afe operations."
Create the JAR file
jar - cf jpcap.jar jpcap
Confirm the content s of your JAR file with the following comma n d:
jar - tvf jpcap.jar
Copy the new jpcap.jar file to your Java extentions di rectory
$ cp jpcap.jar '[Java - dir] / j re /lib / ext /
For my ins tallation, this was / u s r / lib / jvm/ j ava - 6 - su n / j re / lib / ext
Another option is to copy the JAR file to your ap plication' s di rectory an d ad d it to your
CLASSPATH.
You are now rea dy to begin using the JPCAP Java Native Interface Library.
ht
Key Bridge LLC
March 29, 2008
In this tutorial I will de scribe how to ins tall JPCap from source code on Linux (Ubunty 7.10 or Debian
4.0).
JPCap is an open - source Java library released u n de r the GNU LGPL and de signed to enable the
capt uring an d sen ding ne twork packet s in Java. JPCap is developed by Keita Fujii an d the Univer sity
of California and Irvine.
The JPCap home page is h t t p: / / n e t research.ics.uci.edu / kf ujii / jpcap / d oc /
JPCap is a Java Native Library Implement ation (JNI) of the po p ular libpcap library an d sho uld therefor
work on any OS which su p por t s libpcap. libpcap is a user - level packet capture library tha t provides a
commo n, sys tem- indepe n de nt API for low- level network mo ni toring. libpcap is also ope n - source
sof tware developed an d maint ained by TCPDump.org.
We will use JPCap and libpcap on the Linux operating sys tem but the both libraries work on Microsof t
Windows (WinPcap), Linux, FreeBSD, an d Mac OS X.
JPCap su p por t s the following types of network da ta:
Layer 2: Ethernet Datagrams
Layer 3: IPv4 & Ipv6 ARP/RARP
TCP, UDP an d ICMPv4.
JPCap recogni zes the packet types enume rated above but can capt ure any type of ne twork t raffic as a
raw packet (i.e., as an ins tance of the Packet clas s) which contains the Packet's whole da t a. This
feature allows Java a p plications to analyze any packet type.
Step 1: Preparing the System
Following are ins t r uctions to ins tall JPCap on a f resh ins tallation of Ubuntu 7.10 of Debian 4.0.
Ins tall the neces sary developme nt sof tware packages to create a u s able developme nt environme nt:
Ins tall the GNU compiler an d basic libraries
% su do a pt - get ins tall build - es sential
Ins tall the linux pca p library
% su do a pt - get ins tall libpcap0.8
Ins tall the Java SDK from Sun
% su do a pt - get ins tall s un - java6 - sdk
Download the JPCap source and ext ract it into your working directory
ht t p: / / n e t research.ics.uci.edu / kfujii / j pcap / j pcap - 0.7.tar.gz
ht tp: / /KeyBridgeGlobal.com Page 1
Key Bridge LLC
Step 2: Building & Installing the JPCap JNI library
In a terminal window, navigate to the [jpcap] / s rc / c directory. For example:
~ / j pcap - 0.7 / s rc / c
[IMPORTANT] Edit the J***A_DIR Makefile ent ry to point to your version of jni.h
You can find it quickly with the following comma n d:
$ find / u s r - name jni.h
/ u s r / lib / jvm/ j ava - 6 - s un - 1.6.0.03 / include / jni.h
The Makefile sho uld then rea d
J***A_DIR = / u s r / lib / jvm/ j ava - 6 - su n - 1.6.0.03
In the terminal window u n der the [jpcap] / s rc / c di rectory type make to create the share d library
$ make
This will create the file 'libjpcap.so'.
Copy 'libjpcap.so' your sys tem' s Java JNI library directory
'[Java - di r] / j re / lib / < a rch >' where < a rch > is either 'i386' or 'sparc'.
For my ins tallation, this was / u s r / lib / jvm/ j ava - 6 - su n / j re / lib /i386
Another option is to copy the library to the directory where your ap plication is locate d.
Step 3: Building and Installing the JPCap JAR file
In a terminal window, nagivate to the [jpcap] / s rc / j ava directory. For example:
~ / j pcap - 0.7 / s rc / java
There should be one sub directory name d 'jpcap'
Compile all of the .java files in the 'jpcap' and 'jpcap / p acket' di rectories.
$ find . - name "*.java" - exec javac {} / ;
You may see the following er ror for IPPacket.java - ignore it.
"Note: . /jpcap / p acket /IPPacket.java uses u nchecked or u ns afe operations."
Create the JAR file
jar - cf jpcap.jar jpcap
Confirm the content s of your JAR file with the following comma n d:
jar - tvf jpcap.jar
Copy the new jpcap.jar file to your Java extentions di rectory
$ cp jpcap.jar '[Java - dir] / j re /lib / ext /
For my ins tallation, this was / u s r / lib / jvm/ j ava - 6 - su n / j re / lib / ext
Another option is to copy the JAR file to your ap plication' s di rectory an d ad d it to your
CLASSPATH.
You are now rea dy to begin using the JPCAP Java Native Interface Library.
ht
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