Add data to the tail of a potentially fragmented buffer
unsigned char * pskb_put(struct sk_buff * skb, struct sk_buff * tail, int len);
skb
start of the buffer to use
tail
tail fragment of the buffer to use
len
amount of data to add
This function extends the used data area of the potentially fragmented buffer. tail must be the last fragment of skb -- or skb itself. If this would exceed the total buffer size the kernel will panic. A pointer to the first byte of the extra data is returned.