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jNetPcap: a java wrapper for libpcap and winpcap
URL: jNetPcap project homepage
At 12:36 PM on Aug 10, 2007, Mark Bednarczyk wrote:
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jNetPcap is a true java wrapper around the native libpcap and winpcap libraries, exposing all of their functions and structures. Through the use of java's JNI API, methods are proxied and structures are peered with their java cousins. I stress the "all" exported functions fact, to point out that no other java library does this today and that is how jNetPcap differentiates itself, among other things.
Some Features:
- No packet data copies - passed by reference into java as a direct nio byte buffer
- Provides "all" libpcap functions and structures - very few exceptions that just did not make sense in java
- Also comes with all WinPcap extensions
- Tune kernel buffers and behavior from java
- Transmit at link layer with any size sendqueues
- Remote captures
- Allows the kernel to gather statistics much more efficiently
- LGPL licensed - source in SVN on sf.net
Some note worthy methods:
* openLive - opens a live capture from network interface
* openOffline - opens a capture file
* findAllDevsEx - extended version of Pcap.findAllDevs which allows you to not only find network interfaces, but also PCAP files. This can be done locally or remotely.
* liveDump - which can dump captured packets to a savefile automatically at the kernel level.
* sendQueueTransmit - and related method, which allow raw packets to be sent in bulk, efficiently.
* setMinToCopy, setMode and setBuf - allow tweaking of kernel buffers and enable/disable statistical captures
* offlineFilter - ability to apply the BPF filter on your own packets without a capture
* setSampling - changes the mode of the capture where only samples of a capture are retruend. packets
* statEx - extended statistics that include counters on RPCAP remote connection
The best way to see this in action is to look at an example:
http://jnetpcap.sourceforge.net/?q=node/48
Homepage:
http://jnetpcap.sf.net
2 replies so far (
Post your own)
Re: jNetPcap: a java wrapper for libpcap and winpcap
Update! jNetPcap 1.0 beta 4 is released.Adds linux platform support and few new features.
http://jnetpcap.sf.net
Re: jNetPcap: a java wrapper for libpcap and winpcap
Update: jNetPcap version 1.1 is released. Code clean up and provides support for Windows XP/Vista, Linux FC8 and Linux Debian 4.http://jnetpcap.sf.net
Cheers,
mark...