STRUCT NFT_FLOWTABLE(9)

💖 NAME 💖

okay bestie, welcome to the Kernel API Manual page for struct nft_flowtable(9) — literally the nf_tables flow table. it's giving kernel-internals main character energy, and we're gonna get through every single member together, no cap. 🫶✨

🌸 SYNOPSIS 🌸

struct nft_flowtable {
    struct list_head                list;
    struct nft_table                *table;
    char *name;
    int hooknum;
    int ops_len;
    u32 genmask:2;
    u32 use;
    u64 handle;
    struct list_head                hook_list;
    struct nf_flowtable             data;
};

🎀 Members 🎀

• list — this is the flow table's list node, lowkey just chillin' in the table list. 💅
• table — the table that this flow table is contained in. yes, it knows its home. 🏠
• name — the name of this flow table, bestie. iconic label behavior. ✨
• hooknum — the hook number. keeping it numeric and cute. 🔢
• ops_len — the number of hooks in the array. not me counting hooks, but yes. 🎀
• genmask — the generation mask. very “behind the scenes but essential” of it. 🦋
• use — the number of references to this flow table. it's popular, fr fr. 💖
• handle — a unique object handle. one of a kind, periodt. 👑
• hook_list — the hook list for hooks per net_device in flowtables. okay multitasking queen. 🌈
• data — the rhashtable and garbage collector. doing the glamorous cleanup work behind the scenes. 🧚💜

🔥 SEE ALSO 🔥

Kernel file ./include/net/netfilter/nf_tables.h — go read it, bestie, it's literally right there. and then the whole squad: struct nft_verdict(9), struct nft_regs(9), struct nft_ctx(9), struct nft_userdata(9), struct nft_set_elem(9), enum nft_iter_type(9), struct nft_set_desc(9), enum nft_set_class(9), struct nft_set_estimate(9), struct nft_expr(9), struct nft_set_ops(9), struct nft_set_type(9), struct nft_set(9), struct nft_set_binding(9), enum nft_set_extensions(9), struct nft_set_ext_type(9), struct nft_set_ext_tmpl(9), struct nft_set_ext(9), struct nft_expr_type(9), struct nft_expr_ops(9), struct nft_rule(9), struct nft_chain_validate_state(9), struct nft_chain(9), struct nft_chain_type(9), struct nft_base_chain(9), struct nft_table(9), struct nft_object_hash_key(9), struct nft_object(9), struct nft_object_type(9), struct nft_object_ops(9), struct nft_traceinfo(9), struct nft_trans(9), struct nft_trans_hook(9), struct nft_trans_binding(9).

and that's the vibe check, bestie 🫶 this one came from ./include/net/netfilter, dated October 2026, and it's literally the struct nft_flowtable(9) moment. slay, no notes. 💅✨