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pskb_copy

NAME

pskb_copy - create copy of an sk_buff with private head.

SYNOPSIS

struct sk_buff * pskb_copy(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 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.

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