+#if defined(CONFIG_IP_NF_CONNTRACK_NETLINK) || \
+ defined(CONFIG_IP_NF_CONNTRACK_NETLINK_MODULE)
+static int icmp_tuple_to_nfattr(struct sk_buff *skb,
+ const struct ip_conntrack_tuple *t)
+{
+ NFA_PUT(skb, CTA_PROTO_ICMP_ID, sizeof(u_int16_t),
+ &t->src.u.icmp.id);
+ NFA_PUT(skb, CTA_PROTO_ICMP_TYPE, sizeof(u_int8_t),
+ &t->dst.u.icmp.type);
+ NFA_PUT(skb, CTA_PROTO_ICMP_CODE, sizeof(u_int8_t),
+ &t->dst.u.icmp.code);
+
+ return 0;
+
+nfattr_failure:
+ return -1;
+}
+
+static int icmp_nfattr_to_tuple(struct nfattr *tb[],
+ struct ip_conntrack_tuple *tuple)
+{
+ if (!tb[CTA_PROTO_ICMP_TYPE-1]
+ || !tb[CTA_PROTO_ICMP_CODE-1]
+ || !tb[CTA_PROTO_ICMP_ID-1])
+ return -EINVAL;
+
+ tuple->dst.u.icmp.type =
+ *(u_int8_t *)NFA_DATA(tb[CTA_PROTO_ICMP_TYPE-1]);
+ tuple->dst.u.icmp.code =
+ *(u_int8_t *)NFA_DATA(tb[CTA_PROTO_ICMP_CODE-1]);
+ tuple->src.u.icmp.id =
+ *(u_int16_t *)NFA_DATA(tb[CTA_PROTO_ICMP_ID-1]);
+
+ if (tuple->dst.u.icmp.type >= sizeof(invmap)
+ || !invmap[tuple->dst.u.icmp.type])
+ return -EINVAL;
+
+ return 0;
+}
+#endif
+