SKB_COPY(9)                              Linux Networking                             SKB_COPY(9)



NAME
       skb_copy - create private copy of an sk_buff

SYNOPSIS
       struct sk_buff * skb_copy(const struct sk_buff * skb, gfp_t gfp_mask);

ARGUMENTS
       skb
           buffer to copy

       gfp_mask
           allocation priority

DESCRIPTION
       Make a copy of both an sk_buff and its data. This is used when the caller wishes to modify
       the data and needs a private copy of the data to alter. Returns NULL on failure or the
       pointer to the buffer on success. The returned buffer has a reference count of 1.

       As by-product this function converts non-linear sk_buff to linear one, so that sk_buff
       becomes completely private and caller is allowed to modify all the data of returned
       buffer. This means that this function is not recommended for use in circumstances when
       only header is going to be modified. Use pskb_copy instead.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                               SKB_COPY(9)