batadv_tvlv_call_handler(9)

📦 version 7.3.1, in nixpkgs unstable

💖 batadv_tvlv_call_handler(9) 💖

okay so we're deep in the kernel docs rn — this one lives in the Kernel API Manual, and it's literally the function that takes your tvlv buffer and goes "bestie, let me find the right handler for you" 🫶

✨ NAME ✨

batadv_tvlv_call_handler — parse the given tvlv buffer to call the appropriate handlers

the way this one function just runs the whole group chat of handlers… main character energy fr fr 👑

🌸 SYNOPSIS 🌸

int batadv_tvlv_call_handler (struct batadv_priv *bat_priv , struct
batadv_tvlv_handler *tvlv_handler , u8 packet_type , struct
batadv_orig_node *orig_node , struct sk_buff *skb , void *tvlv_value ,
u16 tvlv_value_len );

seven args, no cap. she's got a lot going on and we love her for it 💅

🎀 ARGUMENTS 🎀

  • bat_priv — the bat priv with all the mesh interface information ✨ like, all of it. every last mesh interface detail is in here.
  • tvlv_handler — the tvlv callback function handling the tvlv content. this is the lil bestie that actually does the work 🫶
  • packet_type — indicates for which packet type the TVLV handler is called 👀 so she knows what kind of packet we're dealing with.
  • orig_node — orig node emitting the ogm packet 📡 yup, the origin node, the one sending the ogm.
  • skb — the skb the TVLV handler is called for 🦋 the socket buffer in question, periodt.
  • tvlv_value — tvlv content. the actual goods 💖
  • tvlv_value_len — tvlv content length 📏 gotta know how long the content is, obviously.

⭐ RETURN ⭐

so what do you get back? glad you asked 💅

NET_RX_SUCCESS if the handler was not found — yeah, not found still gets you a success, iconic — or the return value of the handler callback. and that latter one is NET_RX_SUCCESS or NET_RX_DROP for the unicast handler, and additionally a negative errno code for the mcast handler 🌈

ngl the mcast handler has extra range — she can hit you with an errno too. keep an eye on it 😭

🦋 SEE ALSO 🦋

Kernel file ./net/batman-adv/tvlv.c — and literally the whole tvlv extended family, we're doing a reunion 🎉

and that's the whole thing bestie, go forth and call your handlers 🌸🧚💜

💌 lil sign-off: this page came from ./net/batman-adv and it's dated October 2026 — so yeah, she's from the future, slay. mwah 💋
📦 where this page comes from