batadv_dat_entry_add(9)

💅 batadv_dat_entry_add(9) — a Kernel API Manual moment

okay so bestie, welcome to the Kernel API Manual ✨ this one's called batadv_dat_entry_add and it's genuinely iconic. let's get into it 🎀

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🌸 NAME 🌸

batadv_dat_entry_add — the function that adds a new dat entry, or updates it if one already exists 💖

literally that's her whole job. add it, or update it. no cap.

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✨ SYNOPSIS ✨

void batadv_dat_entry_add (struct batadv_priv *bat_priv , __be32 ip , u8
*mac_addr , unsigned short vid );

she takes four things and returns void — so like, she doesn't hand you anything back, she just does the thing. main character energy fr fr 👑

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🦋 ARGUMENTS 🦋

• bat_priv — the bat priv with all the mesh interface information. it's giving "the whole entire vibe of the mesh in one struct" 💀 everything you need to know about the mesh interface lives in here.
• ip — ipv4 to add/edit. it's a __be32, so mind your endianness bestie 🙈
• mac_addr — mac address to assign to the given ipv4. this is the whole point of the mapping, so like, get it right 🫶
• vid — VLAN identifier. unsigned short, keeping the VLANs cute and separated 🌈

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🔥 SEE ALSO 🔥

okay this is the part where she name-drops literally everyone she knows. it's a lot. but we do not skip a single one, because every single reference matters 💜

kernel file: ./net/batman-adv/distributed-arp-table.c

• enum batadv_bootpop(9)
• enum batadv_boothtype(9)
• enum batadv_dhcpoptioncode(9)
• enum batadv_dhcptype(9)
• struct batadv_dhcp_packet(9)
• struct batadv_dhcp_header(9)
• struct batadv_dhcp_option_header(9)
• batadv_dat_start_timer(9)
• batadv_dat_entry_release(9)
• batadv_dat_entry_put(9)
• batadv_dat_to_purge(9)
• __batadv_dat_purge(9)
• batadv_dat_purge(9)
• batadv_compare_dat(9)
• batadv_arp_hw_src(9)
• batadv_arp_ip_src(9)
• batadv_arp_hw_dst(9)
• batadv_arp_ip_dst(9)
• batadv_hash_dat(9)
• batadv_dat_entry_hash_find(9)
• batadv_dbg_arp(9)
• batadv_is_orig_node_eligible(9)
• batadv_choose_next_candidate(9)
• batadv_dat_select_candidates(9)
• batadv_dat_forward_data(9)
• batadv_dat_tvlv_container_update(9)
• batadv_dat_status_update(9)
• batadv_dat_tvlv_ogm_handler_v1(9)
• batadv_dat_hash_free(9)
• batadv_dat_init(9)
• batadv_dat_free(9)
• batadv_dat_cache_dump_entry(9)
• batadv_dat_cache_dump_bucket(9)
• batadv_dat_cache_dump(9)
• batadv_arp_get_type(9)
• batadv_dat_get_vid(9)
• batadv_dat_arp_create_reply(9)
• batadv_dat_snoop_outgoing_arp_request(9)
• batadv_dat_snoop_incoming_arp_request(9)
• batadv_dat_snoop_outgoing_arp_reply(9)
• batadv_dat_snoop_incoming_arp_reply(9)
• batadv_dat_check_dhcp_ipudp(9)
• batadv_dat_check_dhcp(9)
• batadv_dat_get_dhcp_message_type(9)
• batadv_dat_dhcp_get_yiaddr(9)
• batadv_dat_get_dhcp_chaddr(9)
• batadv_dat_put_dhcp(9)
• batadv_dat_check_dhcp_ack(9)
• batadv_dat_snoop_outgoing_dhcp_ack(9)
• batadv_dat_snoop_incoming_dhcp_ack(9)
• batadv_dat_drop_broadcast_packet(9)

like I said. everyone. and she means every single one 😭👑

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so yeah, that's the whole page 🎀 go add your dat entries, bestie. slay.

sourced straight from ./net/batman-adv, dated October 2026 — mwah, xoxo 💋