From 9d3949659c360b88fdadad7b5b8becd56d769263 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sosth=C3=A8ne=20Gu=C3=A9don?= <sosthene@nitrokey.com>
Date: Wed, 25 Jan 2023 10:01:58 +0100
Subject: [PATCH]  Fix
 https://github.com/Nitrokey/nitrokey-3-firmware/issues/150

When using highspeed usb, some calculations worked with usb 1 constants.
This caused packets to be handled improperly.
---
 src/pipe.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/pipe.rs b/src/pipe.rs
index 9a5df4c..216ff60 100644
--- a/src/pipe.rs
+++ b/src/pipe.rs
@@ -153,10 +153,10 @@ where
             self.ext_packet.extend_from_slice(&packet).unwrap();
 
             let pl = packet.packet_len();
-            if pl > 54 {
+            if pl > PACKET_SIZE - CCID_HEADER_LEN {
                 self.receiving_long = true;
                 self.in_chain = 1;
-                self.long_packet_missing = pl - 54;
+                self.long_packet_missing = pl - PACKET_SIZE - CCID_HEADER_LEN;
                 self.packet_len = pl;
                 return;
             } else {