bootp_pkt
b = (struct bootp_pkt *)skb_network_header(skb);
b = (struct bootp_pkt *)skb_network_header(skb);
struct bootp_pkt *b;
skb = alloc_skb(sizeof(struct bootp_pkt) + hlen + tlen + 15,
b = skb_put_zero(skb, sizeof(struct bootp_pkt));
h->tot_len = htons(sizeof(struct bootp_pkt));
b->udph.len = htons(sizeof(struct bootp_pkt) - sizeof(struct iphdr));
struct bootp_pkt *b;