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<body class='hmmessage'><div dir='ltr'><br><div>Dear Sirs/ Ma'ams,<br><div dir="ltr"><br>I am an undergraduate student following the B Eng (Hons) Software
Engineering degree program at University of Westminster, UK. As for my
final year research project I am implementing a packet security
enhancement module.<br><br>The concept includes capturing of packets via the use of libnetfilter and apply necessary security implementations. I was able to successfully capture packets and extract it relevant data where I store the IP address as unsigned int. However, I have the requirement of identifying the packets destination IP's address family.<br><br>I tried many ways, which only lead me to user space implementations, not C linux kernel module programming. During my research I just came across %pI4 and %pI6 which formats and displays the Ip address, not give out its address family, i. e. IPv6 or IPv4.<br><br>I would be really grateful if you experts would help me get through this obstacle. any references or examples to identify the IP address family (IPv4/ IPv6) of the IP (which is store in unsigned int variables) will be highly appreciated.<br><br>Thank you,<br><br>Best Regards,<br>H. Hasitha Shan<br><br>P.S. I apologize in advance if this question has an obvious answer, but as I am a novice in this area, my research lead me to dead ends for weeks and your help will be very much appreciated.<br> </div></div> </div></body>
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