Lines Matching defs:skb
20 static void xfrm4_beet_make_header(struct sk_buff *skb)
22 struct iphdr *iph = ip_hdr(skb);
27 iph->protocol = XFRM_MODE_SKB_CB(skb)->protocol;
28 iph->tos = XFRM_MODE_SKB_CB(skb)->tos;
30 iph->id = XFRM_MODE_SKB_CB(skb)->id;
31 iph->frag_off = XFRM_MODE_SKB_CB(skb)->frag_off;
32 iph->ttl = XFRM_MODE_SKB_CB(skb)->ttl;
39 static int xfrm4_beet_output(struct xfrm_state *x, struct sk_buff *skb)
46 optlen = XFRM_MODE_SKB_CB(skb)->optlen;
50 skb_set_network_header(skb, -x->props.header_len -
51 hdrlen + (XFRM_MODE_SKB_CB(skb)->ihl - sizeof(*top_iph)));
53 skb->network_header += IPV4_BEET_PHMAXLEN;
54 skb->mac_header = skb->network_header +
56 skb->transport_header = skb->network_header + sizeof(*top_iph);
58 xfrm4_beet_make_header(skb);
61 __skb_pull(skb, XFRM_MODE_SKB_CB(skb)->ihl - hdrlen);
63 top_iph = ip_hdr(skb);
84 static int xfrm4_beet_input(struct xfrm_state *x, struct sk_buff *skb)
90 if (unlikely(XFRM_MODE_SKB_CB(skb)->protocol == IPPROTO_BEETPH)) {
94 if (!pskb_may_pull(skb, sizeof(*ph)))
97 ph = (struct ip_beet_phdr *)skb->data;
104 XFRM_MODE_SKB_CB(skb)->protocol = ph->nexthdr;
106 if (!pskb_may_pull(skb, phlen))
108 __skb_pull(skb, phlen);
111 skb_push(skb, sizeof(*iph));
112 skb_reset_network_header(skb);
114 memmove(skb->data - skb->mac_len, skb_mac_header(skb),
115 skb->mac_len);
116 skb_set_mac_header(skb, -skb->mac_len);
118 xfrm4_beet_make_header(skb);
120 iph = ip_hdr(skb);
123 iph->tot_len = htons(skb->len);
127 iph->check = ip_fast_csum(skb_network_header(skb), iph->ihl);