From 105c598c53b44dbfd946997a59ad07812e5f3a27 Mon Sep 17 00:00:00 2001
From: Robin Mueller <robin.mueller.m@gmail.com>
Date: Wed, 26 Jul 2023 23:27:40 +0200
Subject: [PATCH] some more extensions for PDU impl

---
 src/cfdp/mod.rs          | 6 ++++++
 src/cfdp/pdu/metadata.rs | 2 +-
 src/cfdp/pdu/mod.rs      | 3 ++-
 3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/cfdp/mod.rs b/src/cfdp/mod.rs
index b6c082f..27e5524 100644
--- a/src/cfdp/mod.rs
+++ b/src/cfdp/mod.rs
@@ -134,6 +134,12 @@ pub enum ChecksumType {
     NullChecksum = 15,
 }
 
+impl Default for ChecksumType {
+    fn default() -> Self {
+        Self::NullChecksum
+    }
+}
+
 pub const NULL_CHECKSUM_U32: [u8; 4] = [0; 4];
 
 #[derive(Debug, Copy, Clone, PartialEq, Eq)]
diff --git a/src/cfdp/pdu/metadata.rs b/src/cfdp/pdu/metadata.rs
index f8e4be7..2e3b5f0 100644
--- a/src/cfdp/pdu/metadata.rs
+++ b/src/cfdp/pdu/metadata.rs
@@ -11,7 +11,7 @@ use alloc::vec::Vec;
 #[cfg(feature = "serde")]
 use serde::{Deserialize, Serialize};
 
-#[derive(Debug, Copy, Clone, PartialEq, Eq)]
+#[derive(Default, Debug, Copy, Clone, PartialEq, Eq)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 pub struct MetadataGenericParams {
     pub closure_requested: bool,
diff --git a/src/cfdp/pdu/mod.rs b/src/cfdp/pdu/mod.rs
index b18a058..4723431 100644
--- a/src/cfdp/pdu/mod.rs
+++ b/src/cfdp/pdu/mod.rs
@@ -232,7 +232,8 @@ impl CommonPduConfig {
             LargeFileFlag::Normal,
             CrcFlag::NoCrc,
             Direction::TowardsReceiver,
-        ).unwrap()
+        )
+        .unwrap()
     }
 
     pub fn source_id(&self) -> UnsignedByteField {