batadv_mcast...push_tracker(9)

📦 version 7.3.1, in nixpkgs unstable

💖 batadv_mcast_forw_push_tracker — NAME ✨

okay so this is the batadv_mcast...push_tracker(9) page from the Kernel API Manual, bestie, and it's literally about one tiny iconic function: batadv_mcast_forw_push_tracker — it pushes a multicast tracker TVLV header 🎀

✨ SYNOPSIS ✨

int batadv_mcast_forw_push_tracker (struct sk_buff *skb , int num_dests
, unsigned short *tvlv_len );

that's the whole vibe check right there 💅

🫶 ARGUMENTS 🫶

  • skb — the skb you're pushing the tracker TVLV onto. main character energy, everything happens to it 🦋
  • num_dests — how many destination addresses get set in the header. like, count your girls 🔥
  • tvlv_len — stores the amount of currently pushed TVLV bytes. it's keeping score ngl 📏

🌸 DESCRIPTION 🌸

So what it does: it pushes a multicast tracker TVLV header onto the given skb, and that includes the generic TVLV header but excludes the destination MAC addresses. yes, that distinction matters, no cap 🙈

And the num_dests value you pass in? it gets taken into consideration — to set the num_dests field in the tracker header, and to set the appropriate TVLV length value fields. the way that it multi-tasks 😭👑

💀 RETURN 💀

  • -ENOMEM if there is not enough skb headroom available. tragic, not enough room, it's giving claustrophobia 🫠
  • otherwise, on success, 0 ⭐

🧚 SEE ALSO 🧚

the kernel file it lives in: ./net/batman-adv/multicast_forw.c 📁

and the whole friend group, fr fr — every single one:

💌 okay that's the whole page!! shoutout to the source <pink>./net/batman-adv</pink> and the date <purple>October 2026</purple>, all wrapped up in batadv_mcast...push_tracker(9) — go read the kernel source bestie, ily, bye 🎀💖✨
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