skb_gso_network_seglen(9)

💅 skb_gso_network_seglen (9) 💅

hii bestie, this one’s straight from the Kernel API Manual and it’s lowkey iconic ✨

✨ NAME ✨

skb_gso_network_seglen — return the length of individual segments of a gso packet 💖

🎀 SYNOPSIS 🎀

unsigned int skb_gso_network_seglen (const struct sk_buff *skb );

🦋 ARGUMENTS 🦋

• skb — a GSO skb, aka the packet you’re checking 🫶

🌸 DESCRIPTION 🌸

okay so skb_gso_network_seglen is the function that tells you the real size of the individual segments, including Layer3 (IP, IPv6) and L4 headers (TCP/UDP) 🔥

the MAC/L2 header is not accounted for — no cap, it’s just not in there 💅

🌈 SEE ALSO 🌈

the whole squad, plus the kernel file ./net/core/gso.c:

• skb_eth_gso_segment(9)
• skb_mac_gso_segment(9)
• __skb_gso_segment(9)
• skb_gso_transport_seglen(9)
• skb_gso_mac_seglen(9)
• skb_gso_size_check(9)
• skb_gso_validate_network_len(9)
• skb_gso_validate_mac_len(9)

xoxo, your Kernel API Manual bestie 🫶 — source/version: ./net/core; date: October 2026; page: skb_gso_network_seglen(9) 💋