batadv_mcast_is_report_ipv6(9)

💖 batadv_mcast_is_report_ipv6(9) 💖

okay so bestie, welcome to the Kernel API Manual ✨ — yes we're in kernel land today, and no, it's not scary, i promise 🫶. this one's a lil function from the batman-adv family and it's honestly so straightforward once you know what it's doing.

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🌸 NAME 🌸

batadv_mcast_is_report_ipv6 — literally just checking for MLD reports 👀

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🦋 SYNOPSIS 🦋

bool batadv_mcast_is_report_ipv6 (struct sk_buff *skb );

that's it. one frame in, one bool out. clean, minimal, iconic 💅

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🎀 ARGUMENTS 🎀

• skb — the ethernet frame that's headed for the mesh 🧚 this is the thing you're asking about, so hand it over.

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💜 DESCRIPTION 💜

⚠️ bestie, read this one first, it's important: this function may reallocate the skb data buffer via ipv6_mc_check_mld/... — so any pointer into the skb data (like one you got from skb->data or eth_hdr) that you grabbed before this call has to be considered invalid afterwards. invalid! gone! expired! 😭 you have to reacquire it. don't be out here using a stale pointer, that is not the vibe.

and then the actual job, which is honestly kinda cute: it checks whether the frame you passed in is a valid MLD report 🌈

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⭐ RETURN ⭐

• if it is 👉 true ✨
• otherwise 👉 false 💀

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🔥 SEE ALSO 🔥

the kernel file is ./net/batman-adv/multicast.c, and bestie… the friend group here is huge. like, this function knows everyone. scroll responsibly:

• batadv_mcast_start_timer(9)
• batadv_mcast_get_bridge(9)
• batadv_mcast_mla_rtr_flags_meshif_get_ipv4(9)
• batadv_mcast_mla_rtr_flags_meshif_get_ipv6(9)
• batadv_mcast_mla_rtr_flags_meshif_get(9)
• batadv_mcast_mla_rtr_flags_bridge_get(9)
• batadv_mcast_mla_rtr_flags_get(9)
• batadv_mcast_mla_forw_flags_get(9)
• batadv_mcast_mla_flags_get(9)
• batadv_mcast_mla_is_duplicate(9)
• batadv_mcast_mla_meshif_get_ipv4(9)
• batadv_mcast_mla_meshif_get_ipv6(9)
• batadv_mcast_mla_meshif_get(9)
• batadv_mcast_mla_br_addr_cpy(9)
• batadv_mcast_mla_bridge_get(9)
• batadv_mcast_mla_list_free(9)
• batadv_mcast_mla_tt_retract(9)
• batadv_mcast_mla_tt_add(9)
• batadv_mcast_querier_log(9)
• batadv_mcast_bridge_log(9)
• batadv_mcast_flags_log(9)
• batadv_mcast_mla_flags_update(9)
• __batadv_mcast_mla_update(9)
• batadv_mcast_mla_update(9)
• batadv_mcast_is_report_ipv4(9)
• batadv_mcast_forw_mode_check_ipv4(9)
• batadv_mcast_forw_mode_check_ipv6(9)
• batadv_mcast_forw_mode_check(9)
• batadv_mcast_forw_want_all_ip_count(9)
• batadv_mcast_forw_rtr_count(9)
• batadv_mcast_forw_mode_by_count(9)
• batadv_mcast_forw_mode(9)
• batadv_mcast_forw_send_orig(9)
• batadv_mcast_forw_tt(9)
• batadv_mcast_forw_want_all_ipv4(9)
• batadv_mcast_forw_want_all_ipv6(9)
• batadv_mcast_forw_want_all(9)
• batadv_mcast_forw_want_all_rtr4(9)
• batadv_mcast_forw_want_all_rtr6(9)
• batadv_mcast_forw_want_rtr(9)
• batadv_mcast_forw_send(9)
• batadv_mcast_want_unsnoop_update(9)
• batadv_mcast_want_ipv4_update(9)
• batadv_mcast_want_ipv6_update(9)
• batadv_mcast_want_rtr4_update(9)
• batadv_mcast_want_rtr6_update(9)
• batadv_mcast_have_mc_ptype_update(9)
• batadv_mcast_tvlv_flags_get(9)
• batadv_mcast_tvlv_ogm_handler(9)
• batadv_mcast_init(9)
• batadv_mcast_mesh_info_put(9)
• batadv_mcast_flags_dump_entry(9)
• batadv_mcast_flags_dump_bucket(9)
• __batadv_mcast_flags_dump(9)
• batadv_mcast_netlink_get_primary(9)
• batadv_mcast_flags_dump(9)
• batadv_mcast_free(9)
• batadv_mcast_purge_orig(9)

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that's the whole page, bestie, you ate that 🍓💅

sign-off time 🎀 — this lil beauty lives in ./net/batman-adv, dated October 2026, and the page itself is batadv_mcast_is_report_ipv6(9). go forth, reacquire your pointers, and slay ✨👑