static inline int
ctnetlink_dump_protoinfo(struct sk_buff *skb, const struct nf_conn *ct)
{
struct nf_conntrack_protocol *proto = nf_ct_proto_find_get(ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num, ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum);
struct nfattr *nest_proto;
int ret;
if (!proto->to_nfattr) {
nf_ct_proto_put(proto);
return 0;
}
nest_proto = NFA_NEST(skb, CTA_PROTOINFO);
ret = proto->to_nfattr(skb, nest_proto, ct);
nf_ct_proto_put(proto);
NFA_NEST_END(skb, nest_proto);
return ret;
nfattr_failure:
return -1;
}
static inline int
ctnetlink_dump_tuples(struct sk_buff *skb,
const struct nf_conntrack_tuple *tuple)
{
int ret;
struct nf_conntrack_l3proto *l3proto;
struct nf_conntrack_protocol *proto;
l3proto = nf_ct_l3proto_find_get(tuple->src.l3num);
ret = ctnetlink_dump_tuples_ip(skb, tuple, l3proto);
nf_ct_l3proto_put(l3proto);
if (unlikely(ret < 0))
return ret;
proto = nf_ct_proto_find_get(tuple->src.l3num, tuple->dst.protonum);
ret = ctnetlink_dump_tuples_proto(skb, tuple, proto);
nf_ct_proto_put(proto);
return ret;
}
static inline int
ctnetlink_dump_tuples_proto(struct sk_buff *skb,
const struct nf_conntrack_tuple *tuple)
{
struct nf_conntrack_protocol *proto;
int ret = 0;
NFA_PUT(skb, CTA_PROTO_NUM, sizeof(u_int8_t), &tuple->dst.protonum);
/* If no protocol helper is found, this function will return the
* generic protocol helper, so proto won't *ever* be NULL */
proto = nf_ct_proto_find_get(tuple->src.l3num, tuple->dst.protonum);
if (likely(proto->tuple_to_nfattr))
ret = proto->tuple_to_nfattr(skb, tuple);
nf_ct_proto_put(proto);
return ret;
nfattr_failure:
return -1;
}
