ENUM NFT_CHAIN_ATTRIBUTES(9)

✨ enum nft_chain_attributes(9) ✨

okay so this is a Linux Kernel API Manual page, section 9, and it's literally all about enum nft_chain_attributes — the netlink attribute crew for nf_tables chains. if you're poking at netfilter tables from userspace, this is your girl. 🎀

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💅 NAME

enum nft_chain_attributes — the nf_tables chain netlink attributes, bestie. that's the whole vibe.

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🌸 SYNOPSIS

enum nft_chain_attributes {
    NFTA_CHAIN_UNSPEC ,
    NFTA_CHAIN_TABLE ,
    NFTA_CHAIN_HANDLE ,
    NFTA_CHAIN_NAME ,
    NFTA_CHAIN_HOOK ,
    NFTA_CHAIN_POLICY ,
    NFTA_CHAIN_USE ,
    NFTA_CHAIN_TYPE ,
    NFTA_CHAIN_COUNTERS ,
    NFTA_CHAIN_PAD ,
    NFTA_CHAIN_FLAGS ,
    NFTA_CHAIN_ID ,
    NFTA_CHAIN_USERDATA ,
    __NFTA_CHAIN_MAX

};

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🦋 Constants

ngl this is the main character section. every constant, no skips, periodt. 👑

• NFTA_CHAIN_UNSPEC — <italic>-- undescribed --</italic> 🙈 the manpage literally didn't say, so i'm not gonna invent lore, iykyk.
• NFTA_CHAIN_TABLE — the name of the table that contains the chain (NLA_STRING). like, where your chain lives.
• NFTA_CHAIN_HANDLE — the numeric handle of the chain (NLA_U64).
• NFTA_CHAIN_NAME — the name of the chain (NLA_STRING).
• NFTA_CHAIN_HOOK — the hook specification, for basechains (NLA_NESTED: nft_hook_attributes). basechain girlies, this one's for you.
• NFTA_CHAIN_POLICY — the numeric policy of the chain (NLA_U32).
• NFTA_CHAIN_USE — how many references point at this chain (NLA_U32). it's giving popularity metrics fr fr.
• NFTA_CHAIN_TYPE — the type name of the string (NLA_NUL_STRING).
• NFTA_CHAIN_COUNTERS — the counter specification of the chain (NLA_NESTED: nft_counter_attributes).
• NFTA_CHAIN_PAD — <italic>-- undescribed --</italic> 🫶 mystery icon, we respect her privacy.
• NFTA_CHAIN_FLAGS — chain flags. that's it, that's the description, slay.
• NFTA_CHAIN_ID — uniquely identifies a chain in a transaction (NLA_U32). one of a kind ✨
• NFTA_CHAIN_USERDATA — user data (NLA_BINARY). your data, your rules, your vibe.
• __NFTA_CHAIN_MAX — <italic>-- undescribed --</italic> 💀 the sentinel that keeps the count, but the manpage left her undescribed too.

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👀 SEE ALSO

the kernel file is ./include/uapi/linux/netfilter/nf_tables.h enum — go read the source, it ate. then there's a whole friend group of enums waiting for you, and honestly the way that this list goes on… iconic. 💖

• enum nft_registers(9)
• enum nft_verdicts(9)
• enum nf_tables_msg_types(9)
• enum nft_list_attributes(9)
• enum nft_hook_attributes(9)
• enum nft_table_flags(9)
• enum nft_table_attributes(9)
• enum nft_rule_attributes(9)
• enum nft_rule_compat_flags(9)
• enum nft_rule_compat_attributes(9)
• enum nft_set_flags(9)
• enum nft_set_policies(9)
• enum nft_set_desc_attributes(9)
• enum nft_set_field_attributes(9)
• enum nft_set_attributes(9)
• enum nft_set_elem_flags(9)
• enum nft_set_elem_attributes(9)
• enum nft_set_elem_list_attributes(9)
• enum nft_data_types(9)
• enum nft_data_attributes(9)
• enum nft_verdict_attributes(9)
• enum nft_expr_attributes(9)
• enum nft_immediate_attributes(9)
• enum nft_bitwise_ops(9)
• enum nft_bitwise_attributes(9)
• enum nft_byteorder_ops(9)
• enum nft_byteorder_attributes(9)
• enum nft_cmp_ops(9)
• enum nft_cmp_attributes(9)
• enum nft_range_ops(9)
• enum nft_range_attributes(9)
• enum nft_lookup_attributes(9)
• enum nft_dynset_attributes(9)
• enum nft_payload_bases(9)
• enum nft_payload_csum_types(9)
• enum nft_payload_attributes(9)
• enum nft_exthdr_op(9)
• enum nft_exthdr_attributes(9)
• enum nft_meta_keys(9)
• enum nft_rt_keys(9)
• enum nft_hash_types(9)
• enum nft_hash_attributes(9)
• enum nft_meta_attributes(9)
• enum nft_rt_attributes(9)
• enum nft_socket_attributes(9)
• enum nft_ct_keys(9)
• enum nft_ct_attributes(9)
• enum nft_offload_attributes(9)
• enum nft_limit_attributes(9)
• enum nft_connlimit_attributes(9)
• enum nft_counter_attributes(9)
• enum nft_last_attributes(9)
• enum nft_log_attributes(9)
• enum nft_log_level(9)
• enum nft_queue_attributes(9)
• enum nft_quota_attributes(9)
• enum nft_secmark_attributes(9)
• enum nft_reject_types(9)
• enum nft_reject_inet_code(9)
• enum nft_reject_attributes(9)
• enum nft_nat_types(9)
• enum nft_nat_attributes(9)
• enum nft_tproxy_attributes(9)
• enum nft_masq_attributes(9)
• enum nft_redir_attributes(9)
• enum nft_dup_attributes(9)
• enum nft_fwd_attributes(9)
• enum nft_objref_attributes(9)
• enum nft_gen_attributes(9)
• enum nft_object_attributes(9)
• enum nft_flowtable_flags(9)
• enum nft_flowtable_attributes(9)
• enum nft_flowtable_hook_attributes(9)
• enum nft_osf_attributes(9)
• enum nft_synproxy_attributes(9)
• enum nft_devices_attributes(9)
• enum nft_trace_attributes(9)
• enum nft_ng_attributes(9)

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quick reminder bestie: a bunch of these entries literally say <italic>-- undescribed --</italic>. that's not me being lazy, that's the page. don't go making up behaviour for NFTA_CHAIN_UNSPEC, NFTA_CHAIN_PAD or __NFTA_CHAIN_MAX — we don't guess, we cite. 🫶

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and that's the whole page, no crumbs left. source file: ./include/uapi/linux/netfilter, dated October 2026 — mwah, ty for reading, ily, go write some netlink code 💜🧚‍♀️🔥