Provided by: linux-doc-2.6.15_2.6.15-23.39_all
pskb_copy - create copy of an sk_buff with private head.
struct sk_buff * pskb_copy (struct sk_buff * skb, gfp_t gfp_mask);
skb buffer to copy
Make a copy of both an &sk_buff and part of its data, located in
header. Fragmented data remain shared. This is used when the caller
wishes to modify only header of &sk_buff and needs private copy of the
header to alter. Returns NULL on failure or the pointer to the buffer
on success. The returned buffer has a reference count of 1.