45 static int xfrm4_rcv_cb(struct sk_buff *skb, u8 protocol, int err)  in xfrm4_rcv_cb()  argument
55 		if ((ret = handler->cb_handler(skb, err)) <= 0)  in xfrm4_rcv_cb()
61 int xfrm4_rcv_encap(struct sk_buff *skb, int nexthdr, __be32 spi,  in xfrm4_rcv_encap()  argument
68 	XFRM_TUNNEL_SKB_CB(skb)->tunnel.ip4 = NULL;  in xfrm4_rcv_encap()
69 	XFRM_SPI_SKB_CB(skb)->family = AF_INET;  in xfrm4_rcv_encap()
70 	XFRM_SPI_SKB_CB(skb)->daddroff = offsetof(struct iphdr, daddr);  in xfrm4_rcv_encap()
75 	if (!skb_dst(skb)) {  in xfrm4_rcv_encap()
76 		const struct iphdr *iph = ip_hdr(skb);  in xfrm4_rcv_encap()
78 		if (ip_route_input_noref(skb, iph->daddr, iph->saddr,  in xfrm4_rcv_encap()
79 					 iph->tos, skb->dev))  in xfrm4_rcv_encap()
84 		if ((ret = handler->input_handler(skb, nexthdr, spi, encap_type)) != -EINVAL)  in xfrm4_rcv_encap()
88 	icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0);  in xfrm4_rcv_encap()
91 	kfree_skb(skb);  in xfrm4_rcv_encap()
96 static int xfrm4_esp_rcv(struct sk_buff *skb)  in xfrm4_esp_rcv()  argument
101 	XFRM_TUNNEL_SKB_CB(skb)->tunnel.ip4 = NULL;  in xfrm4_esp_rcv()
104 		if ((ret = handler->handler(skb)) != -EINVAL)  in xfrm4_esp_rcv()
107 	icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0);  in xfrm4_esp_rcv()
109 	kfree_skb(skb);  in xfrm4_esp_rcv()
113 static int xfrm4_esp_err(struct sk_buff *skb, u32 info)  in xfrm4_esp_err()  argument
118 		if (!handler->err_handler(skb, info))  in xfrm4_esp_err()
124 static int xfrm4_ah_rcv(struct sk_buff *skb)  in xfrm4_ah_rcv()  argument
129 	XFRM_TUNNEL_SKB_CB(skb)->tunnel.ip4 = NULL;  in xfrm4_ah_rcv()
132 		if ((ret = handler->handler(skb)) != -EINVAL)  in xfrm4_ah_rcv()
135 	icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0);  in xfrm4_ah_rcv()
137 	kfree_skb(skb);  in xfrm4_ah_rcv()
141 static int xfrm4_ah_err(struct sk_buff *skb, u32 info)  in xfrm4_ah_err()  argument
146 		if (!handler->err_handler(skb, info))  in xfrm4_ah_err()
152 static int xfrm4_ipcomp_rcv(struct sk_buff *skb)  in xfrm4_ipcomp_rcv()  argument
157 	XFRM_TUNNEL_SKB_CB(skb)->tunnel.ip4 = NULL;  in xfrm4_ipcomp_rcv()
160 		if ((ret = handler->handler(skb)) != -EINVAL)  in xfrm4_ipcomp_rcv()
163 	icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0);  in xfrm4_ipcomp_rcv()
165 	kfree_skb(skb);  in xfrm4_ipcomp_rcv()
169 static int xfrm4_ipcomp_err(struct sk_buff *skb, u32 info)  in xfrm4_ipcomp_err()  argument
174 		if (!handler->err_handler(skb, info))  in xfrm4_ipcomp_err()