20 int xfrm4_extract_input(struct xfrm_state *x, struct sk_buff *skb)  in xfrm4_extract_input()  argument
22 	return xfrm4_extract_header(skb);  in xfrm4_extract_input()
26 					 struct sk_buff *skb)  in xfrm4_rcv_encap_finish()  argument
28 	if (!skb_dst(skb)) {  in xfrm4_rcv_encap_finish()
29 		const struct iphdr *iph = ip_hdr(skb);  in xfrm4_rcv_encap_finish()
31 		if (ip_route_input_noref(skb, iph->daddr, iph->saddr,  in xfrm4_rcv_encap_finish()
32 					 iph->tos, skb->dev))  in xfrm4_rcv_encap_finish()
35 	return dst_input(skb);  in xfrm4_rcv_encap_finish()
37 	kfree_skb(skb);  in xfrm4_rcv_encap_finish()
41 int xfrm4_transport_finish(struct sk_buff *skb, int async)  in xfrm4_transport_finish()  argument
43 	struct iphdr *iph = ip_hdr(skb);  in xfrm4_transport_finish()
45 	iph->protocol = XFRM_MODE_SKB_CB(skb)->protocol;  in xfrm4_transport_finish()
52 	__skb_push(skb, skb->data - skb_network_header(skb));  in xfrm4_transport_finish()
53 	iph->tot_len = htons(skb->len);  in xfrm4_transport_finish()
57 		dev_net(skb->dev), NULL, skb, skb->dev, NULL,  in xfrm4_transport_finish()
69 int xfrm4_udp_encap_rcv(struct sock *sk, struct sk_buff *skb)  in xfrm4_udp_encap_rcv()  argument
86 	len = skb->len - sizeof(struct udphdr);  in xfrm4_udp_encap_rcv()
87 	if (!pskb_may_pull(skb, sizeof(struct udphdr) + min(len, 8)))  in xfrm4_udp_encap_rcv()
91 	uh = udp_hdr(skb);  in xfrm4_udp_encap_rcv()
128 	if (skb_unclone(skb, GFP_ATOMIC))  in xfrm4_udp_encap_rcv()
132 	iph = ip_hdr(skb);  in xfrm4_udp_encap_rcv()
135 	if (skb->len < iphlen + len) {  in xfrm4_udp_encap_rcv()
144 	__skb_pull(skb, len);  in xfrm4_udp_encap_rcv()
145 	skb_reset_transport_header(skb);  in xfrm4_udp_encap_rcv()
148 	return xfrm4_rcv_encap(skb, IPPROTO_ESP, 0, encap_type);  in xfrm4_udp_encap_rcv()
151 	kfree_skb(skb);  in xfrm4_udp_encap_rcv()
155 int xfrm4_rcv(struct sk_buff *skb)  in xfrm4_rcv()  argument
157 	return xfrm4_rcv_spi(skb, ip_hdr(skb)->protocol, 0);  in xfrm4_rcv()