STRUCT BATADV_DHCP_HEADER(9)

💅 struct batadv_dhcp_header(9) — like, the manual page, bestie

okay so this is straight out of the Kernel API Manual, and today's main character is struct batadv_dhcp_header ✨ lowkey a tiny little legend. No cap.

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🌸 NAME

struct batadv_dhcp_header — the minimal BOOTP/DHCP packet header 🎀 literally the smallest possible header, she's giving minimalism, she's giving "I only brought the essentials" 💅

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🦋 SYNOPSIS

struct batadv_dhcp_header {
    __u8 op;
    __u8 htype;
    __u8 hlen;
    __u8 hops;
};

four lil __u8 fields, that's it, that's the whole struct, and honestly? obsessed 😌 she's not doing too much and we respect that fr fr.

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🌈 MEMBERS

• op — the message op code / message type 👑 this is the "what kind of DHCP moment are we having" field.
• htype — hardware address type 🔥 tells you what flavour of hardware address situation we're in.
• hlen — hardware address length 📏 how long the hardware address is, no more no less.
• hops — number of relay hops 🦋 counting how many relays it's bounced through, iykyk.

ngl every single one of these is a __u8, so they're all lil one-byte cuties 🍓

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⭐ SEE ALSO

the way this list goes on and on, she's an icon, she's thorough 💀 go check these out bestie:

• 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_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_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)

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that's the whole page bestie, go forth and DHCP responsibly 🫶

💖 sourced from ./net/batman-adv, dated October 2026 — mwah, tysm for reading, ily, bye 💖