[feature] Add Decode trait

1 files changed, 3 insertions, 2 deletions

diff --git a/src/protocol/ip.rs b/src/protocol/ip.rs
index 3a2f6bd..1b92494 100644
--- a/src/protocol/ip.rs
+++ b/src/protocol/ip.rs
@@ -1,3 +1,4 @@
+use crate::protocol::codec::Decode;
 use nom::number;
 use nom::IResult;
 
@@ -62,8 +63,8 @@ impl From<u8> for IPProtocol {
     }
 }
 
-impl IPProtocol {
-    pub fn decode(input: &[u8]) -> IResult<&[u8], IPProtocol> {
+impl Decode<IPProtocol> for IPProtocol {
+    fn decode(input: &[u8]) -> IResult<&[u8], IPProtocol> {
         let (input, protocol) = number::streaming::be_u8(input)?;
 
         Ok((input, protocol.into()))