STRUCT BATADV_ICMP_TP_PACKET(9)

💖 struct batadv_icmp_tp_packet(9) — ICMP TP Meter packet 💖

okay so bestie, welcome to the Kernel API Manual ✨ — this page is all about struct batadv_icmp_tp_packet, which is literally the ICMP TP Meter packet. yes that's a mouthful, no i will not be pronouncing it out loud. sit down, grab a strawberry 🍓, and let's go.

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✨ NAME ✨

struct batadv_icmp_tp_packet — ICMP TP Meter packet 🔥

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🎀 SYNOPSIS 🎀

here's the full glow-up of the struct, copied exactly because precision is the whole vibe 💅

struct batadv_icmp_tp_packet {
    __u8 packet_type;
    __u8 version;
    __u8 ttl;
    __u8 msg_type;
    __u8 dst[ETH_ALEN];
    __u8 orig[ETH_ALEN];
    __u8 uid;
    __u8 subtype;
    __u8 session[2];
    __be32 seqno;
    __be32 timestamp;
 };

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🦋 Members 🦋

okay so every single field, in order, no skips — this is the roster bestie 👑

• packet_type — the batman-adv packet type, and it's part of the general header 🌸
• version — the batman-adv protocol version, also part of the general header ✨
• ttl — time to live for this packet, yep you guessed it, part of the general header 🫶
• msg_type — the ICMP packet type 💫
• dst[ETH_ALEN] — address of the destination node 📍
• orig[ETH_ALEN] — address of the source node 🌈
• uid — local ICMP socket identifier 🔑
• subtype — the TP packet subtype (peep batadv_icmp_tp_subtype) 👀
• session[2] — TP session identifier 🎟️
• seqno — the TP sequence number 🔢
• timestamp — time when the packet has been sent. this value is filled in a TP_MSG and echoed back in the next TP_ACK so that the sender can compute the RTT 🕐. and here's the cute part: since it is read only by the host which wrote it, there is no need to store it using network order — so it's a __be32 that lowkey doesn't gotta be network order, ngl, that's iconic 😭

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💀 SEE ALSO 💀

bestie the link list is LONG and i respect it. Kernel file ./include/uapi/linux/batadv_packet.h:

• batadv_tp_is_error(9)
• enum batadv_packettype(9)
• enum batadv_subtype(9)
• enum batadv_iv_flags(9)
• enum batadv_icmp_packettype(9)
• enum batadv_mcast_flags(9)
• enum batadv_tt_data_flags(9)
• enum batadv_vlan_flags(9)
• enum batadv_bla_claimframe(9)
• enum batadv_tvlv_type(9)
• struct batadv_bla_claim_dst(9)
• struct batadv_ogm_packet(9)
• struct batadv_ogm2_packet(9)
• struct batadv_elp_packet(9)
• struct batadv_icmp_header(9)
• struct batadv_icmp_packet(9)
• enum batadv_icmp_tp_subtype(9)
• struct batadv_icmp_packet_rr(9)
• struct batadv_unicast_packet(9)
• struct batadv_unicast_4addr_packet(9)
• struct batadv_frag_packet(9)
• struct batadv_bcast_packet(9)
• struct batadv_mcast_packet(9)
• struct batadv_coded_packet(9)
• struct batadv_unicast_tvlv_packet(9)
• struct batadv_tvlv_hdr(9)
• struct batadv_tvlv_gateway_data(9)
• struct batadv_tvlv_tt_vlan_data(9)
• struct batadv_tvlv_tt_data(9)
• struct batadv_tvlv_tt_change(9)
• struct batadv_tvlv_roam_adv(9)
• struct batadv_tvlv_mcast_data(9)
• struct batadv_tvlv_mcast_tracker(9)

like… go read them? they're all right there, iykyk 📚

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and that's the whole page, bestie! 💜 this lil artifact lives in ./include/uapi/linux and the date on it is October 2026 — so yes, future me is still out here reading kernel headers. slay. periodt. 🧚✨