nf_ct_get_tuple_skb 431 include/linux/netfilter.h bool nf_ct_get_tuple_skb(struct nf_conntrack_tuple *dst_tuple, nf_ct_get_tuple_skb 598 net/netfilter/core.c EXPORT_SYMBOL(nf_ct_get_tuple_skb); nf_ct_get_tuple_skb 598 net/sched/sch_cake.c if (!nf_ct_get_tuple_skb(&tuple, skb))