ENUM NFT_LOOKUP_ATTRIBUTES(9)

💅 NAME 💅

Okay bestie, this page is the whole vibe for enum nft_lookup_attributes — literally the nf_tables set lookup expression netlink attributes. It's from the Kernel API Manual, and we're about to read it together like a group chat, no cap.

✨ SYNOPSIS ✨

Here's the enum shape, exactly as it appears, periodt:

       enum nft_lookup_attributes {
           NFTA_LOOKUP_UNSPEC ,
           NFTA_LOOKUP_SET ,
           NFTA_LOOKUP_SREG ,
           NFTA_LOOKUP_DREG ,
           NFTA_LOOKUP_SET_ID ,
           NFTA_LOOKUP_FLAGS ,
           __NFTA_LOOKUP_MAX

       };

🎀 Constants 🎀

These are the constants in the enum, and yes we're listing every single one. No skipping, no summarizing, we respect the lore 💖

• NFTA_LOOKUP_UNSPEC — -- undescribed -- (the page literally says that, not me hiding the tea 😭).
• NFTA_LOOKUP_SET — the name of the set where to look for, typed as NLA_STRING.
• NFTA_LOOKUP_SREG — the source register of the data to look for, typed as NLA_U32: nft_registers.
• NFTA_LOOKUP_DREG — the destination register, typed as NLA_U32: nft_registers.
• NFTA_LOOKUP_SET_ID — uniquely identifies a set in a transaction, typed as NLA_U32.
• NFTA_LOOKUP_FLAGS — flags, typed as NLA_U32: enum nft_lookup_flags.
• __NFTA_LOOKUP_MAX — -- undescribed -- (again, the page's words, not mine 🫶).

🔥 SEE ALSO 🔥

Kernel file, right here: ./include/uapi/linux/netfilter/nf_tables.h. That's the home base, iykyk.

And here's the full bestie roll call of related enum pages — every single one, in order:

• 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_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_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_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)

And that's the cute little sign-off tea 🫶: this page's source/version is ./include/uapi/linux/netfilter, the date on it is October 2026, and it's all for enum nft_lookup_attributes(9). Bye bestie, go slay those netlink attributes 💜✨