ENUM NFT_SET_POLICIES(9)

okay bestie, welcome to the enum nft_set_policies(9) page from the Kernel API Manual 💅 this one is short, iconic, and literally all about one tiny enum that picks your set selection policy vibe. No cap.

✨ NAME ✨

enum nft_set_policies — set selection policy. That’s the whole thing, fr fr: it’s the enum for set selection policy, and it’s giving very focused main character energy.

🦋 SYNOPSIS 🦋

Here’s the exact shape of it, bestie:

       enum nft_set_policies {
           NFT_SET_POL_PERFORMANCE ,
           NFT_SET_POL_MEMORY

       };

Tiny enum, two constants, zero drama. 🫶

🎀 Constants 🎀

Two constants, both main characters in the policy department:

• NFT_SET_POL_PERFORMANCE — prefer high performance over low memory use. So you’re picking the “go fast, idc about memory” lane, highkey.
• NFT_SET_POL_MEMORY — prefer low memory use over high performance. This is the “keep it smol and cute” pick, low memory over high performance, periodt.

🌈 SEE ALSO 🌈

Kernel file: ./include/uapi/linux/netfilter/nf_tables.h — that’s the file this enum lives in, bestie.

The whole enum bestie squad, in original 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_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)

source/version: ./include/uapi/linux/netfilter · date: October 2026 · page: enum nft_set_policies(9) — love u bestie, go pick your policy 💖✨