batadv_mcas...ant_all_ipv4(9)

💖 NAME 💖

okay bestie, straight out of the Kernel API Manual: batadv_mcast_forw_want_all_ipv4 — forward to nodes with want-all-ipv4. That's the whole vibe. no cap, it's giving "multicast forwarding but make it specific." 💅

📡 SYNOPSIS 📡

int batadv_mcast_forw_want_all_ipv4 (struct batadv_priv *bat_priv ,
struct sk_buff *skb , unsigned short vid );

🎀 ARGUMENTS 🎀

• bat_priv — the bat priv with all the mesh interface information. it's the main-character struct holding all the mesh interface info.
• skb — the multicast packet to transmit. this is the packet you're sending out, bestie.
• vid — the vlan identifier. yep, the VLAN ID.

📨 DESCRIPTION 📨

Sends copies of a frame with multicast destination to any node with a BATADV_MCAST_WANT_ALL_IPV4 flag set. A transmission is performed via a batman-adv unicast packet for each such destination node.

so basically: if a node has the BATADV_MCAST_WANT_ALL_IPV4 flag set, it gets a copy of that multicast-destination frame — and for every destination node like that, it goes out via a batman-adv unicast packet. slay. ✨

📤 RETURN 📤

NET_XMIT_DROP on memory allocation failure, NET_XMIT_SUCCESS otherwise.

so if memory allocation fails, it's a NET_XMIT_DROP; otherwise you get NET_XMIT_SUCCESS. 💅

👀 SEE ALSO 👀

the kernel file is ./net/batman-adv/multicast.c, and here's the entire see-also group chat — every single one, fr fr: 🫶

• 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_is_report_ipv6(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_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)

xoxo, source/version: ./net/batman-adv; date: October 2026 — that's the footer tea, bestie. 💖🦋✨