From 09a523fc508455f9502f09b8ba58e1627258ea51 Mon Sep 17 00:00:00 2001
From: ivmarkov <ivan.markov@gmail.com>
Date: Fri, 28 Apr 2023 05:26:36 +0000
Subject: [PATCH] TX packets are reused; need way to reset them

---
 matter/src/interaction_model/core.rs |  2 ++
 matter/src/transport/packet.rs       | 13 +++++++++++++
 2 files changed, 15 insertions(+)

diff --git a/matter/src/interaction_model/core.rs b/matter/src/interaction_model/core.rs
index 1e9827b..abf76a4 100644
--- a/matter/src/interaction_model/core.rs
+++ b/matter/src/interaction_model/core.rs
@@ -271,6 +271,8 @@ impl<'a> Interaction<'a> {
         transaction: &mut Transaction,
     ) -> Result<Option<Self>, Error> {
         if let Some(interaction) = Self::new(rx, transaction)? {
+            tx.reset();
+
             let initiated = match &interaction {
                 Interaction::Read(req) => req.initiate(tx, transaction)?,
                 Interaction::Write(req) => req.initiate(tx, transaction)?,
diff --git a/matter/src/transport/packet.rs b/matter/src/transport/packet.rs
index a86bf69..d56485f 100644
--- a/matter/src/transport/packet.rs
+++ b/matter/src/transport/packet.rs
@@ -78,6 +78,19 @@ impl<'a> Packet<'a> {
         }
     }
 
+    pub fn reset(&mut self) -> () {
+        if let Direction::Tx(wb) = &mut self.data {
+            wb.reset();
+            wb.reserve(Packet::HDR_RESERVE).unwrap();
+
+            self.plain = Default::default();
+            self.proto = Default::default();
+            self.peer = Address::default();
+
+            self.proto.set_reliable();
+        }
+    }
+
     pub fn as_slice(&self) -> &[u8] {
         match &self.data {
             Direction::Rx(pb, _) => pb.as_slice(),