gnutls_dtls_set_mtu(3)

📦
version 3.8.13 · 7 versions
, in alpine 3.22, alpine 3.23, alpine 3.24, arch rolling, fedora 43, fedora 44, ubuntu stonking

💖 gnutls_dtls_set_mtu(3) 💖

okay bestie, welcome to the gnutls manual page for gnutls_dtls_set_mtu 🎀 yes this is the one, the DTLS MTU setter, and honestly? she's simple, she's iconic, she does exactly one thing. let's get into it ✨

🌸 NAME 🌸

gnutls_dtls_set_mtu — it's an API function, that's the whole vibe 💅

🦋 SYNOPSIS 🦋

#include <gnutls/dtls.h>

void gnutls_dtls_set_mtu(gnutls_session_t session, unsigned int mtu);

like, look at her. two args, returns nothing, zero drama 🌈

✨ ARGUMENTS ✨

  • gnutls_session_t session — bestie this is a gnutls_session_t type. that's it, that's the whole description, she is what she is 💜
  • unsigned int mtu — the maximum transfer unit of the transport 🫶

👑 DESCRIPTION 👑

so here's the tea 🍓 this function will set the maximum transfer unit of the transport that DTLS packets are sent over.

⚠️ okay important, do NOT skip this part: this should exclude the IP (or IPv6) and UDP headers. like, those headers are not invited to this party 🙈

so for DTLS over IPv6 on an Ethernet device with MTU 1500, the DTLS MTU you'd set with this function would be:

1500 - 40 (IPV6 header) - 8 (UDP header) = 1452

math ate, no cap 🧮✨ 1500 minus 40 minus 8, and boom, 1452. that's the number you pass in. the way that works out so cleanly?? obsessed 😭

⭐ SINCE ⭐

3.0 — she's been here since the beginning of the 3.x era, a true veteran queen 👑

🐛 REPORTING BUGS 🐛

found a bug? don't be shy, tell the girlies:

Copyright © 2001-2023 Free Software Foundation, Inc., and others. 🫶

Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved. periodt 💅

🌈 SEE ALSO 🌈

the full documentation for gnutls is maintained as a Texinfo manual, iykyk 📚

if the /usr/share/doc/gnutls/ directory does not contain the HTML form, visit:

https://www.gnutls.org/manual/

and that's the whole page bestie!! this was gnutls 3.8.13, the gnutls_dtls_set_mtu(3) page, brought to you by the gnutls girlies 💖 mwah, go set some MTUs, ily, bye!! 🎀🦋🌸

📦 where this page comes from