ENUM BATADV_MCAST_FLAGS_PRIV(9)

💅 enum batadv_mcast_flags_priv(9) — from the Kernel API Manual, bestie

okay so this is a page straight out of the Kernel API Manual about enum batadv_mcast_flags_priv, and no cap it's a whole vibe. it's the private, own multicast flags — like, the flags this originator keeps for itself, not the ones it's out here announcing to everybody. iykyk 🎀

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✨ NAME ✨

enum batadv_mcast_flags_priv — Private, own multicast flags 🫶

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🌸 SYNOPSIS 🌸

enum batadv_mcast_flags_priv {
    BATADV_MCAST_FLAGS_BRIDGED ,
    BATADV_MCAST_FLAGS_QUERIER_IPV4_EXISTS ,
    BATADV_MCAST_FLAGS_QUERIER_IPV6_EXISTS ,
    BATADV_MCAST_FLAGS_QUERIER_IPV4_SHADOWING ,
    BATADV_MCAST_FLAGS_QUERIER_IPV6_SHADOWING

};

like, five constants, that's the whole cast 💖

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🌈 Constants 🌈

🦋 the main characters

• BATADV_MCAST_FLAGS_BRIDGED — there's literally a bridge sitting on top of the mesh interface. that's it, that's the flag. iconic. 👑
• BATADV_MCAST_FLAGS_QUERIER_IPV4_EXISTS — tells you whether an IGMP querier exists in the mesh. does it exist? this flag knows. ⭐
• BATADV_MCAST_FLAGS_QUERIER_IPV6_EXISTS — same energy, but for the v6 girlies: whether an MLD querier exists in the mesh. 🧚
• BATADV_MCAST_FLAGS_QUERIER_IPV4_SHADOWING — so if an IGMP querier exists, this says whether it is potentially shadowing multicast listeners (i.e. querier is behind our own bridge segment). sneaky little thing 🙈
• BATADV_MCAST_FLAGS_QUERIER_IPV6_SHADOWING — and the MLD twin: if an MLD querier exists, whether it is potentially shadowing multicast listeners (i.e. querier is behind our own bridge segment). same sneaky energy, v6 edition 💀

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💜 Description 💜

these are the internal, multicast related flags. lowkey the whole point: currently they describe certain multicast related attributes of the segment this originator bridges into the mesh. 🫶

those attributes are then used to determine the public multicast flags this originator is going to announce via TT. so like, private flags in, public announcement out — the glow-up pipeline ✨

🚨 netlink bestie listen up: for netlink, if BATADV_MCAST_FLAGS_BRIDGED is unset then all querier related flags are undefined. undefined fr fr, don't go reading them, that's not a vibe. 😭

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🔥 SEE ALSO 🔥

• Kernel file ./include/uapi/linux/batman_adv.h enum
• batadv_tt_client_flags(9)
• enum batadv_gw_modes(9)
• enum batadv_nl_attrs(9)
• enum batadv_nl_commands(9)
• enum batadv_tp_meter_reason(9)
• enum batadv_ifla_attrs(9)

all the linked besties, go say hi 💖

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and that's the page! sign-off time: this one lives at ./include/uapi/linux, dated October 2026, and it came to you courtesy of the Kernel API Manual for enum batadv_...t_flags_priv(9). slay, drink some water, and go read your flags 💅🌈💜