From 734e61345213cc8ae074922328a74323e224aed6 Mon Sep 17 00:00:00 2001
From: lubeilin <1791778603@qq.com>
Date: Tue, 5 Mar 2024 21:35:49 +0800
Subject: [PATCH] =?UTF-8?q?[mio]=20=E5=AE=8C=E5=96=84=E9=94=99=E8=AF=AF?=
 =?UTF-8?q?=E5=A4=84=E7=90=86?=
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---
 vnt/tun/src/packet/ethernet/packet.rs | 2 +-
 vnt/tun/src/packet/mod.rs             | 5 ++++-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/vnt/tun/src/packet/ethernet/packet.rs b/vnt/tun/src/packet/ethernet/packet.rs
index a9540a7..440d61a 100644
--- a/vnt/tun/src/packet/ethernet/packet.rs
+++ b/vnt/tun/src/packet/ethernet/packet.rs
@@ -21,7 +21,7 @@ impl<B: AsRef<[u8]>> EthernetPacket<B> {
         let packet = EthernetPacket::unchecked(buffer);
         //头部固定14位
         if packet.buffer.as_ref().len() < 14 {
-            Err(io::Error::from(io::ErrorKind::InvalidData))?;
+            Err(io::Error::new(io::ErrorKind::InvalidData,format!("len={}", packet.buffer.as_ref().len())))?;
         }
 
         Ok(packet)
diff --git a/vnt/tun/src/packet/mod.rs b/vnt/tun/src/packet/mod.rs
index 75d9f31..07905b7 100644
--- a/vnt/tun/src/packet/mod.rs
+++ b/vnt/tun/src/packet/mod.rs
@@ -13,8 +13,11 @@ where
     let mut eth_buf = [0; 65536];
     loop {
         let len = read_fn(&mut eth_buf)?;
+        if len == 0{
+            return Ok(len);
+        }
         //处理arp包
-        let mut ether = ethernet::packet::EthernetPacket::unchecked(&mut eth_buf[..len]);
+        let mut ether = ethernet::packet::EthernetPacket::new(&mut eth_buf[..len])?;
         match ether.protocol() {
             Protocol::Ipv4 => {
                 let len = ether.payload().len();