batadv_hash_dat(9)

💅 batadv_hash_dat — like, the manual page, bestie

okay so picture this: it's the Kernel API Manual, it's batadv_hash_dat(9), and it's literally the little function that figures out which bucket your IP address belongs in. main character energy for a hash function, honestly.

✨ NAME ✨

batadv_hash_dat — compute the hash value for an IP address 🎀

🦋 SYNOPSIS 🦋

u32 batadv_hash_dat (const void *data , u32 size );

🌸 ARGUMENTS 🌸

• data — the data to hash, bestie. that's the thing going into the blender 🍓
• size — size of the hash table. yes it matters, no you can't skip it 💅

⭐ RETURN ⭐

the selected index in the hash table for the given data. that's it, that's the whole vibe — you hand it stuff, it hands you back a number, no cap ✨

👑 SEE ALSO 👑

the kernel file lives at ./net/batman-adv/distributed-arp-table.c, and here's the whole friend group 🫶:

• 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_dat_entry_hash_find(9)
• batadv_dat_entry_add(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)

and that's the whole page, periodt 💜 go hash something and slay 🌈

signing off from ./net/batman-adv — October 2026 edition, brought to you by the Kernel API Manual. mwah 🎀💖