![]() Clone the repo like this: git clone git:///node-pcap/node_pcap.git If you want to hack on the source code, you can get it from github. The easiest way to get node_pcap and its tools is with npm: npm install pcap All major Linux distributions have it availableĮither by default or with a package like libpcap-dev. Node has a very good HTTP parser that is used to progressively decode HTTP sessions. Writing servers that capture packets, process them somehow, and then serve the processed data up in some way is ![]() Decoding packets involvesĪ lot of binary slicing and dicing which can be awkward with JavaScript strings. Node makes handling binary data in JavaScript fast and efficient with its Buffer class. These events is much easier and more readable with anonymous functions and closures. Each packet that is captured generates anĮvent, and as higher level protocols are decoded, they might generate events as well. JavaScript makes writing event-based programs very natural. Why would anybody want to do such low level things like packet capture and analysis There are already many tools for capturing, decoding, and analyzing packets. Node_pcap is useful for many things, but it does not yet understand all common protocols. libpcap is a packet capture library used by programs like tcpdump and wireshark. This is a set of bindings from libpcap to node as well as some useful libraries to decode, print, andĪnalyze packets. Also, if you're capturing on monitor wifi interfaces, the Radiotap ![]() There's been some API changes between v2 and v3 the createSession and createOfflineSession arguments
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