From mboxrd@z Thu Jan  1 00:00:00 1970
From: lovelylich@gmail.com (Yi Li)
Date: Wed, 10 Apr 2013 17:04:21 +0800
Subject: At which Network Layer
In-Reply-To: <CAEMktPX7iX-V7X3qWE+gWGGG6kurveogjVw9MA1DT3Lb+9UajQ@mail.gmail.com>
References: <CAEMktPX7iX-V7X3qWE+gWGGG6kurveogjVw9MA1DT3Lb+9UajQ@mail.gmail.com>
Message-ID: <51652B15.9020600@gmail.com>
To: kernelnewbies@lists.kernelnewbies.org
List-Id: kernelnewbies.lists.kernelnewbies.org

? 2013?04?10? 16:42, Robert Clove ??:
> Hello All,
>
> There is a field in sk_buff structure name clone which tell whether 
> the sk_buff structure has been cloned or not?
>
> I want to know at which layer does this clonning happen at L2,L3 or L4.
any layer when it is needed.
you can check function: net/core/sk_buff.c: skb_clone(), it is called in 
drivers, L3(like ip), and L4(like tcp).
>
>
> Thanks
>
>
>
>
>
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