ENUM NFT_SOCKET_ATTRIBUTES(9)

💅 NAME 💅

okay so bestie, welcome to enum nft_socket_attributes(9) — it's the nf_tables socket expression netlink attributes, and yes it's giving "kernel header enum that runs the whole vibe check" ✨ (this is the Kernel API Manual page btw, keep that in your notes 🎀)

🌸 SYNOPSIS 🌸

enum nft_socket_attributes {
    NFTA_SOCKET_UNSPEC ,
    NFTA_SOCKET_KEY ,
    NFTA_SOCKET_DREG ,
    NFTA_SOCKET_LEVEL ,
    __NFTA_SOCKET_MAX

};

literal character-for-character, don't touch a single space, iykyk 💅

🦋 CONSTANTS 🦋

okay so these are the members, let's go one by one, no skipping, no cap:

• NFTA_SOCKET_UNSPEC — -- undescribed -- 😭 the manpage literally gave us nothing on this one, so I'm not gonna invent lore. Fr fr, it's undescribed.
• NFTA_SOCKET_KEY — the socket key to match 🔑 that's it, that's the whole job, and it ate.
• NFTA_SOCKET_DREG — the destination register, aka where the result goes to live its best life 🫶
• NFTA_SOCKET_LEVEL — the cgroups2 ancestor level, and heads up bestie: it's only for cgroupsv2 👑 (so if you're on v1 this one's not for you, sorry not sorry)
• __NFTA_SOCKET_MAX — -- undescribed -- 🙈 again, nothing from the source, so nothing from me. Respect the mystery.

ngl, two of these are marked -- undescribed -- in the original and I refuse to make stuff up about them. That's a main-character boundary 💀

⭐ SEE ALSO ⭐

okay so the source file is ./include/uapi/linux/netfilter/nf_tables.h 📁 and then there's a whole friend group of enums, all (9) pages, all invited to the function. Here's literally every single one, in order, so you never have to wonder:

• 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_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_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 whole page bestie, every constant, every reference, nothing dropped 💜

🌷 cute lil sign-off: this one lives in ./include/uapi/linux/netfilter, it's dated October 2026, and it's enum nft_socket_attributes(9) from the Kernel API Manual — go forth and match those socket keys, mwah 🫶✨🎀