Does libpcap get a copy of the packet ?

Posted by ShaChris23 on Stack Overflow See other posts from Stack Overflow or by ShaChris23
Published on 2010-05-12T00:16:07Z Indexed on 2010/05/12 0:24 UTC
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Filed under:

packet-capture

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packet-sniffers

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libpcap

Does libpcap get a copy of the packet or the actual packet?

By copy, I mean: the application using libpcap gets packet A, and the kernel also gets packet A.

By actual, I mean: only the application using libpcap gets packet A, but the kernel didn't get it.

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