batadv_send_skb_unicast(9)

💅 batadv_send_skb_unicast(9)

okay so bestie, welcome to the Kernel API Manual — yes, the actual kernel API manual, and yes we're gonna get through this together. this one's called batadv_send_skb_unicast, and the whole ~vibe~ is: you've got a packet, you wrap it up all cute in a batman-adv header, and you yeet it at exactly one originator. no broadcasting, no drama, just one (1) destination. iykyk ✨

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🌸 NAME 🌸

batadv_send_skb_unicast — encapsulate and send an skb via unicast 🎀

like, that's it. that's the whole job. wrap it, then send it. to one person. slay.

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✨ SYNOPSIS ✨

int batadv_send_skb_unicast (struct batadv_priv *bat_priv , struct
sk_buff *skb , int packet_type , int packet_subtype , struct
batadv_orig_node *orig_node , unsigned short vid );

six arguments, one int coming back at you. no cap, that's the whole signature 💖

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🦋 ARGUMENTS 🦋

• bat_priv — the bat priv 💫 this is the one holding all the mesh interface information, so like, everything you need to know about the mesh lives in here.
• skb — the payload to send 🎁 your precious little packet, before it gets dressed up.
• packet_type — the batman unicast packet type to use 👑 this is the one that picks your whole outfit for the evening.
• packet_subtype — the unicast 4addr packet subtype 🌈 and bestie, listen: this is only relevant for unicast 4addr packets. if you're not doing 4addr, it's just sitting there vibing.
• orig_node — the originator to send the packet to 🫶 your one and only destination. main character energy, honestly.
• vid — the vid to be used to search the translation table 🔍 that's the VLAN id, and it's what you go looking through the translation table with.

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💜 DESCRIPTION 💜

okay here's the tea, fr fr:

this function wraps the given skb into a batman-adv unicast header or a unicast-4addr header — which one you get depends entirely on whether BATADV_UNICAST or BATADV_UNICAST_4ADDR was supplied as the packet_type. then it sends this frame to the given orig_node. 💌

literally "dress the packet appropriately, then mail it to the one originator you were told about." iconic behaviour, no notes.

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⭐ RETURN ⭐

• NET_XMIT_DROP — when something went wrong 😭 (error case)
• NET_XMIT_SUCCESS — when it all worked out 💖 (otherwise)

so like, check it. don't just assume success. vibe check your return value, bestie.

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🔥 SEE ALSO 🔥

a whole friend group of related functions, and ngl, this list is long. but every single one of them matters, so here we go — kernel file ./net/batman-adv/send.c and friends:

• batadv_send_skb_packet(9)
• batadv_send_broadcast_skb(9)
• batadv_send_unicast_skb(9)
• batadv_send_skb_to_orig(9)
• batadv_send_skb_push_fill_unicast(9)
• batadv_send_skb_prepare_unicast(9)
• batadv_send_skb_prepare_unicast_4addr(9)
• batadv_send_skb_via_tt_generic(9)
• batadv_send_skb_via_gw(9)
• batadv_forw_packet_free(9)
• batadv_forw_packet_alloc(9)
• batadv_forw_packet_was_stolen(9)
• batadv_forw_packet_steal(9)
• batadv_forw_packet_list_steal(9)
• batadv_forw_packet_list_free(9)
• batadv_forw_packet_queue(9)
• batadv_forw_packet_bcast_queue(9)
• batadv_forw_packet_ogmv1_queue(9)
• batadv_forw_bcast_packet_to_list(9)
• batadv_forw_bcast_packet_if(9)
• batadv_send_no_broadcast(9)
• __batadv_forw_bcast_packet(9)
• batadv_forw_bcast_packet(9)
• batadv_send_bcast_packet(9)
• batadv_forw_packet_bcasts_left(9)
• batadv_forw_packet_bcasts_dec(9)
• batadv_forw_packet_is_rebroadcast(9)
• batadv_send_outstanding_bcast_packet(9)
• batadv_purge_outstanding_packets(9)

go read them. all of them. okay maybe not all at once 💀

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and that's the page, bestie! 🧚✨ this lil manual moment came to you from ./net/batman-adv, dated October 2026, and it's filed under batadv_send_skb_unicast(9) — mwah, go send some unicast packets responsibly 💅💖