ovpn_udp_encap_recv(9)

✨ ovpn_udp_encap_recv(9) ✨

okay so bestie, this is the ovpn_udp_encap_recv(9) page from the Kernel API Manual, and it's literally about starting to process a received UDP packet. no cap, this is the vibe check for incoming UDP. 🦋💅

💖 NAME 💖

ovpn_udp_encap_recv — start processing a received UDP packet. periodt. 👑

🎀 SYNOPSIS 🎀

int ovpn_udp_encap_recv (struct sock *sk , struct sk_buff *skb );

🌸 ARGUMENTS 🌸

• sk — socket over which the packet was received. like, the socket it came in on, bestie. 🫶
• skb — the received packet. the actual packet in question. 📦

🧚 DESCRIPTION 🧚

If the first byte of the payload is:

• DATA_V2 — the packet is accepted for further processing. slay, it moves on. ✅
• DATA_V1 — the packet is dropped as not supported. nope, not today. 🙈
• anything else — the packet is forwarded to the UDP stack for delivery to user space. off it goes to userspace. 💅

🔥 RETURN 🔥

• 0 — if skb was consumed or dropped.
• >0 — if skb should be passed up to userspace as UDP (packet not consumed).
• <0 — if skb should be resubmitted as proto -N (packet not consumed).

🌈 SEE ALSO 🌈

• Kernel file ./drivers/net/ovpn/udp.c
• ovpn_dst_cache_check_key(9)
• ovpn_dst_cache_current(9)
• ovpn_udp4_output(9)
• ovpn_udp6_output(9)
• ovpn_udp_output(9)
• ovpn_udp_send_skb(9)
• ovpn_udp_socket_attach(9)
• ovpn_udp_socket_detach(9)

xoxo, your kernel bestie 💖 — source/version: ./drivers/net/ovpn, date: October 2026. this page ate and left no crumbs. 🍓