batadv_dat_...ng_arp_reply(9)

💖 NAME 💖

okay so welcome to the batadv_dat_...ng_arp_reply(9) page from the Kernel API Manual, bestie 💅 this one is short and spicy, and the function is literally batadv_dat_snoop_incoming_arp_reply — it snoops the ARP reply and fills the local DAT storage only. that's the whole vibe. periodt. 🎀

✨ SYNOPSIS ✨

the signature is giving:

bool batadv_dat_snoop_incoming_arp_reply (struct batadv_priv *bat_priv ,
struct sk_buff *skb , int hdr_size );

🎀 ARGUMENTS 🎀

• bat_priv — the bat priv with all the mesh interface information. it's the main character struct here 🫶
• skb — packet to check. yes bestie, inspect it. 👀
• hdr_size — size of the encapsulation header. lowkey important. ✨

🌸 DESCRIPTION 🌸

🚨 Warning: this function may reallocate the skb data buffer via batadv_dat_get_vid/.... Any pointer into the skb data (e.g. obtained from skb->data or eth_hdr) before this call must be considered invalid afterwards and has to be reacquired.

literally do not trust the old pointer after this call, bestie — it's giving expired 💀 reacquire it, fr fr.

🔥 RETURN 🔥

this function returns true if the packet was snooped and consumed by DAT. it returns false if the packet has to be delivered to the interface. simple, iconic, no notes 😌

🦋 SEE ALSO 🦋

• 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_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_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)

mwah 💋 this page comes from source/version ./net/batman-adv, dated October 2026, and it's titled batadv_dat_...ng_arp_reply(9). periodt. 🎀