batadv_dat_get_dhcp_chaddr(9)

💖 batadv_dat_get_dhcp_chaddr(9) 💖

okay so bestie, welcome to the batadv_dat_get_dhcp_chaddr(9) page from the Kernel API Manual. We're about to get into it, and the vibe is very much “extract the chaddr and go.” 🫶

🌸 NAME 🌸

batadv_dat_get_dhcp_chaddr — get chaddr from a DHCP packet. that's it, that's the name, and it's lowkey iconic. 💅

🌈 SYNOPSIS 🌈

bool batadv_dat_get_dhcp_chaddr (struct sk_buff *skb , u8 *buf );

look at that signature — she's serving bool and taking exactly two arguments. No cap. 🎀

🎀 ARGUMENTS 🎀

• skb — the DHCP packet to parse. this is the packet bestie, and parsing is the whole assignment. 🦋
• buf — a buffer to store the chaddr in. put the chaddr here, thank youuu. 🫶

🦋 DESCRIPTION 🦋

important bestie moment: the caller needs to ensure that the given skb is a valid DHCP packet and that the skb transport header is set correctly. Both. Not one. Both. So do your little pre-call vibe check, okay? 🙈✨

⭐ RETURN ⭐

True on success, false otherwise. that's the whole return section, and she ate. 💀💖

👑 SEE ALSO 👑

the kernel file is ./net/batman-adv/distributed-arp-table.c, and here is the whole linked-up squad, no skipped names, fr fr:

• ./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_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_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 page, bestie 💅 this one comes from ./net/batman-adv, dated October 2026 — section 9 of the manual, batadv_dat_get_dhcp_chaddr(9), signing off with main character energy. 🎀✨