skb_push(9)
NAME
skb_push - add data to the start of a buffer
SYNOPSIS
unsigned char * skb_push(struct sk_buff * skb, unsigned int len);
ARGUMENTS
- skb
- buffer to use
- len
- amount of data to add
DESCRIPTION
This function extends the used data area of the buffer at the buffer
start. If this would exceed the total buffer headroom the kernel will
panic. A pointer to the first byte of the extra data is returned.