ENUM NFT_DATA_ATTRIBUTES(9)

🦋 enum nft_data_attributes(9)

okay so bestie, welcome to the Kernel API Manual ✨ — we're talking enum nft_data_attributes, which is literally just the set of netlink attributes that carry data around in nf_tables. tiny enum, huge friend group. let's get into it 🎀

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🌸 NAME

enum nft_data_attributes — nf_tables data netlink attributes

like, the labels you slap on the data blobs when you're shipping them through netlink 💌

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✨ SYNOPSIS

enum nft_data_attributes {
    NFTA_DATA_UNSPEC ,
    NFTA_DATA_VALUE ,
    NFTA_DATA_VERDICT ,
    __NFTA_DATA_MAX

};

four little guys. that's the whole squad. look at them 🥹

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🧚 CONSTANTS

• NFTA_DATA_UNSPEC — the manpage literally just says -- undescribed -- so like… nobody wrote a description for this one 😭 it's giving mystery, it's giving "we don't talk about that one". it's in the enum though, and we respect it 💅
• NFTA_DATA_VALUE — generic data, typed NLA_BINARY. just a raw blob of bytes doing its thing, no thoughts head empty 🫶
• NFTA_DATA_VERDICT — an nf_tables verdict, typed NLA_NESTED: nft_verdict_attributes. so it's a little nest of verdict attributes tucked inside. fancy ✨
• __NFTA_DATA_MAX — also marked -- undescribed -- 🙈 undocumented icon behavior, no cap. it's there, it exists, it's the max sentinel situation, and the docs are silent about it.

ngl, two of the four constants having zero description is so on brand for kernel headers 💀 but that's exactly what the page says, so that's exactly what you get.

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💖 SEE ALSO

the friend group chat is MASSIVE, so buckle up bestie 🫶 the kernel file this lives in is ./include/uapi/linux/netfilter/nf_tables.h (the enum), and here's literally everyone else:

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_chain_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_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)

like I said. huge. iykyk 👑

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and that's the whole page bestie, mwah 💋 this icon lives in ./include/uapi/linux/netfilter, dated October 2026 — so like, future-era kernel lore 🦋 go read the whole netfilter enum family, it ate 🌈