STRUCT NFT_CHAIN_TYPE(9)

🌸 NAME 🌸

ok so this is the struct nft_chain_type page from the Kernel API Manual — it's literally the nf_tables chain type info struct, no cap 💅

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✨ SYNOPSIS ✨

struct nft_chain_type {
    const char                      *name;
    enum nft_chain_types            type;
    int family;
    struct module                   *owner;
    unsigned int                    hook_mask;
    nf_hookfn *hooks[NFT_MAX_HOOKS];
    int (*ops_register)(struct net *net, const struct nf_hook_ops *ops);
    void (*ops_unregister)(struct net *net, const struct nf_hook_ops
*ops);
 };

bestie look at that indentation on the last field, she's doing her best okay 😭 but fr don't touch it, it's exactly how it lives in the header 🫶

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🎀 Members 🎀

okay so here's the whole cast, main character by main character 👑

• name — the name of the type. literally its whole identity ✨
• type — the numeric identifier. it's giving "ID number" energy 🔢
• family — the address family. which family reunion is this 💀
• owner — the module owner. someone's gotta claim it 🫶
• hook_mask — the mask of valid hooks. only the valid ones get in 🔥
• hooks — an array of hook functions. yes bestie, an array 🌈
• ops_register — the base chain register function 👑
• ops_unregister — the base chain unregister function. she takes it back 💅

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🔥 SEE ALSO 🔥

so there's a kernel file you should peek at: ./include/net/netfilter/nf_tables.h, and it's sitting next to an entire friend group of related pages — like, the whole netfilter extended fam is here 🦋

• 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_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_flowtable(9)
• struct nft_traceinfo(9)
• struct nft_trans(9)
• struct nft_trans_hook(9)
• struct nft_trans_binding(9)

like, go read them all, i'll wait 💜

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ok that's the whole page, nothing skipped, every single one of those (9)s is accounted for and you KNOW i checked 😤

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and that's a wrap bestie!! source vibe check: this one comes to you from ./include/net/netfilter, dated October 2026, and it's still signed struct nft_chain_type(9) at the bottom because consistency is iconic 👑✨ go touch some kernel code, ily 🫶💖