batadv_recv_...ler_register(9)

💅 batadv_recv_handler_register — like, the whole vibe

okay so this is a page from the Kernel API Manual, and bestie, it's a short one but it's important. Gather round. 🎀

✨ NAME ✨

batadv_recv_handler_register — the function that registers a handler for a batman-adv packet type. That's it, that's the whole thing, and honestly? Iconic.

🌸 SYNOPSIS 🌸

int batadv_recv_handler_register (u8 packet_type , int
(*recv_handler)(struct sk_buff *, struct batadv_hard_iface *) );

so it takes a packet type and a function pointer, and it gives you back an int. simple! clean! we love a signature that doesn't overstay its welcome. ✨

🦋 ARGUMENTS 🦋

• packet_type — a batadv_packettype — literally the packet type that should be handled. that's the one you're signing up for. no cap. 💅
• recv_handler — the receive handler for that packet type. like, the function that's gonna catch those packets when they roll up. main character energy, fr fr. 🫶

🔥 RETURN 🔥

returns 0 on success, or a negative error number if it fails. so like, zero is the good one here — don't get it twisted, a 0 return is a slay, a negative one is the 😭.

ngl, always check that return value. zero = we're so back. negative = it's giving failure.

👑 SEE ALSO 👑

the kernel file lives at ./net/batman-adv/main.c, and here's the whole friend group (iykyk) — go say hi:

• batadv_init(9)
• batadv_exit(9)
• batadv_mesh_init(9)
• batadv_mesh_free(9)
• batadv_is_my_mac(9)
• batadv_max_header_len(9)
• batadv_skb_set_priority(9)
• batadv_recv_unhandled_packet(9)
• batadv_batman_skb_recv(9)
• batadv_recv_handler_init(9)
• batadv_recv_handler_unregister(9)
• batadv_get_vid(9)
• batadv_vlan_ap_isola_get(9)
• batadv_throw_uevent(9)

and that's the page, bestie!! 🍓 this little beauty lives over in ./net/batman-adv, dated October 2026 — so go forth, register those handlers, and remember: 0 on success, always. 💖✨🧚