batadv_recv_frag_packet(9)

okay bestie, welcome to the Kernel API Manual page for batadv_recv_frag_packet(9) — yes, the manual name is folded in right here at the top, no boring header line needed 💖

🌸 NAME 🌸

batadv_recv_frag_packet — process received fragment. That's the whole vibe: it handles a fragment that just showed up. 🦋

✨ SYNOPSIS ✨

Here's the signature, copied exactly so you can trust it:

int batadv_recv_frag_packet (struct sk_buff *skb , struct batadv_hard_iface *recv_if );

🎀 ARGUMENTS 🎀

• skb — the received fragment. This is the packet-ish thing being handed over.
• recv_if — interface that the skb is received on. Like the doorway it came through.

🔥 DESCRIPTION 🔥

okay so this function is lowkey a three-way choose-your-own-adventure, and it does one of exactly three things:

1. Forward fragment — if the assembled packet will exceed our MTU, it forwards the fragment.
2. Buffer fragment — if we still lack further fragments, it buffers the fragment.
3. Merge fragments — if we have all needed parts, it merges the fragments.

💅 RETURN 💅

NET_RX_SUCCESS on success, or NET_RX_DROP in case of failure. That's it — slay or drop, no in-between. 😭

🌈 SEE ALSO 🌈

Kernel file ./net/batman-adv/routing.c and the whole friend group:

• _batadv_update_route(9)
• batadv_update_route(9)
• batadv_window_protected(9)
• batadv_check_management_packet(9)
• batadv_skb_decrement_ttl(9)
• batadv_recv_my_icmp_packet(9)
• batadv_recv_icmp_ttl_exceeded(9)
• batadv_recv_icmp_packet(9)
• batadv_check_unicast_packet(9)
• batadv_last_bonding_get(9)
• batadv_last_bonding_replace(9)
• batadv_find_router(9)
• batadv_route_unicast_packet(9)
• batadv_reroute_unicast_packet(9)
• batadv_check_unicast_ttvn(9)
• batadv_recv_unhandled_unicast_packet(9)
• batadv_recv_unicast_packet(9)
• batadv_recv_unicast_tvlv(9)
• batadv_recv_bcast_packet(9)
• batadv_recv_mcast_packet(9)

and that's the whole page, bestie 🫶 this cutie came from source/version ./net/batman-adv and is dated October 2026; title stays batadv_recv_frag_packet(9) 💜✨