batadv_dat_g...message_type(9)

💅 batadv_dat_get_dhcp_message_type — get message type of a DHCP packet 💅

okay so bestie, welcome to the kernel API manual for batadv_dat_get_dhcp_message_type(9) — yes that is the whole entire name, no we are not shortening it, it's iconic and we respect it 🎀

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✨ NAME ✨

batadv_dat_get_dhcp_message_type — get message type of a DHCP packet 🦋

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🫶 SYNOPSIS 🫶

int batadv_dat_get_dhcp_message_type (struct sk_buff *skb );

that's it. one function, one arg, she's lowkey elegant 💅

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🌸 ARGUMENTS 🌸

• skb — the DHCP packet to parse. like, the packet. the actual one. she's the main character here 👑

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💖 DESCRIPTION 💖

so what she does is literally so simple and so slay: she iterates over the DHCP options of the given DHCP packet to find a DHCP Message Type option, and then she parses it. that's the whole vibe check. 🔥

⚠️ okay bestie, read this part twice because it matters: the caller needs to ensure that the given skb is a valid DHCP packet and that the skb transport header is set correctly. she does not check that for you. this is not a "we'll figure it out together" situation, this is a "you handle your business before you call me" situation 😭🙈

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⭐ RETURN ⭐

• the found DHCP message type value, if found 💖
• -EINVAL otherwise 💀

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🦋 SEE ALSO 🦋

everything she's friends with, in the kernel file ./net/batman-adv/distributed-arp-table.c, plus:

• 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_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)

that's a whole friend group, no cap 🌈 not me listing all of them, periodt.

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and that's the page, bestie! this cutie lives in ./net/batman-adv and the version/date on the footer is October 2026 — so mark your calendar, screenshot the group chat, tell your friends, the batadv_dat_get_dhcp_message_type(9) era is now 💜🎀✨