ENUM NFT_OBJREF_ATTRIBUTES(9)

💅 enum nft_objref_attributes(9) — Kernel API Manual ✨

okay so bestie, welcome to the enum nft_objref_attributes(9) page — it lives in the Kernel API Manual and it's literally the netlink attribute lineup for the nf_tables stateful object expression. it's giving very niche, very powerful, very "iykyk" 🎀

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🌸 NAME 🌸

enum nft_objref_attributes — the netlink attributes for the nf_tables stateful object expression, fr fr 💖

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✨ SYNOPSIS ✨

enum nft_objref_attributes {
    NFTA_OBJREF_UNSPEC ,
    NFTA_OBJREF_IMM_TYPE ,
    NFTA_OBJREF_IMM_NAME ,
    NFTA_OBJREF_SET_SREG ,
    NFTA_OBJREF_SET_NAME ,
    NFTA_OBJREF_SET_ID ,
    __NFTA_OBJREF_MAX

};

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🦋 DESCRIPTION 🦋

this is the enum that names every netlink attribute the objref expression speaks. think of it as the group chat member list — each constant is a whole personality 😭

🎀 Constants 🎀

• NFTA_OBJREF_UNSPEC — the manpage just says -- undescribed --, and honestly? she's mysterious. that's all we get 🫶
• NFTA_OBJREF_IMM_TYPE — the object type for an immediate reference. lowkey important: it's NLA_U32: nft_register 🔥
• NFTA_OBJREF_IMM_NAME — the object name for an immediate reference. this one's NLA_STRING ⭐
• NFTA_OBJREF_SET_SREG — the source register holding the data we're gonna look for. type is NLA_U32: nft_registers 👑
• NFTA_OBJREF_SET_NAME — the name of the set where we look for the thing. NLA_STRING, periodt 💜
• NFTA_OBJREF_SET_ID — the id of the set where we look for the thing in this transaction, and it's NLA_U32. transaction-scoped, no cap 🧚
• __NFTA_OBJREF_MAX — also just -- undescribed -- in the source. she's the sentinel and she's not explaining herself 💀

ngl, two of these constants are literally documented as -- undescribed --. that's not me being lazy, that's the actual page. i would never do that to you bestie 💖

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🌈 SEE ALSO 🌈

the kernel file, first of all, exactly as written:

• Kernel file ./include/uapi/linux/netfilter/nf_tables.h

and then the whole extended friend group — go say hi:

• 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_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_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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and that's the whole page bestie, you ate that 🫶 this little number comes from ./include/uapi/linux/netfilter and it's dated October 2026 — so yeah, future-core. go forth and reference objects, ily, mwah 💖✨🎀