From 25fa16ed937adab53d67fc1d258c14ecfe384c9d Mon Sep 17 00:00:00 2001
From: Dionysis Grigoropoulos <dgrig@erethon.com>
Date: Thu, 11 Jan 2024 00:03:22 +0200
Subject: [PATCH] link: Fix MDU calculation size for Links

We need to substract the HEADER_MAXSIZE instead of MINSIZE to correctly
calculate the MDU of a Link. In order to avoid similar mistakes in the
future and not duplicate this calculation, we can reuse Reticulum.MDU
instead.
---
 RNS/Link.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/RNS/Link.py b/RNS/Link.py
index 24d8c4d..3c6be2c 100644
--- a/RNS/Link.py
+++ b/RNS/Link.py
@@ -61,7 +61,7 @@ class Link:
     ECPUBSIZE         = 32+32
     KEYSIZE           = 32
 
-    MDU = math.floor((RNS.Reticulum.MTU-RNS.Reticulum.IFAC_MIN_SIZE-RNS.Reticulum.HEADER_MINSIZE-RNS.Identity.FERNET_OVERHEAD)/RNS.Identity.AES128_BLOCKSIZE)*RNS.Identity.AES128_BLOCKSIZE - 1
+    MDU = math.floor((RNS.Reticulum.MDU-RNS.Identity.FERNET_OVERHEAD)/RNS.Identity.AES128_BLOCKSIZE)*RNS.Identity.AES128_BLOCKSIZE - 1
 
     ESTABLISHMENT_TIMEOUT_PER_HOP = RNS.Reticulum.DEFAULT_PER_HOP_TIMEOUT
     """