From 5f8a67863d851da9fb3a1ea9ea64507d7be3cc67 Mon Sep 17 00:00:00 2001
From: Steve Gilberd <steve@erayd.net>
Date: Mon, 27 Oct 2025 15:46:28 +1300
Subject: [PATCH] Add unencrypted packet support to the cache

---
 src/mesh/PacketCache.cpp | 2 ++
 src/mesh/PacketCache.h   | 4 ++--
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/mesh/PacketCache.cpp b/src/mesh/PacketCache.cpp
index 0edf81741..dc49164f8 100644
--- a/src/mesh/PacketCache.cpp
+++ b/src/mesh/PacketCache.cpp
@@ -52,6 +52,7 @@ PacketCacheEntry *PacketCache::cache(const meshtastic_MeshPacket *p, bool preser
                 m.reply_id = p->decoded.reply_id;
             else if (p->decoded.request_id)
                 m.request_id = p->decoded.request_id;
+            m.tx_unencrypted = !!p->decoded.tx_unencrypted;
         }
         e->payload_len = p->decoded.payload.size;
         memcpy(((unsigned char *)e) + sizeof(PacketCacheEntry), p->decoded.payload.bytes, p->decoded.payload.size);
@@ -203,6 +204,7 @@ void PacketCache::rehydrate(const PacketCacheEntry *e, meshtastic_MeshPacket *p)
                 p->decoded.reply_id = m.reply_id;
             else if (m.request_id)
                 p->decoded.request_id = m.request_id;
+            p->decoded.tx_unencrypted = m.tx_unencrypted;
         }
     }
 }
diff --git a/src/mesh/PacketCache.h b/src/mesh/PacketCache.h
index 81ad455da..73f62b072 100644
--- a/src/mesh/PacketCache.h
+++ b/src/mesh/PacketCache.h
@@ -44,8 +44,8 @@ typedef struct PacketCacheMetadata {
     struct {
         uint8_t _bitfield2;
         union {
-            uint8_t priority : 7; // meshtastic_MeshPacket::priority
-            uint8_t reserved : 1; // Reserved for future use
+            uint8_t priority : 7;       // meshtastic_MeshPacket::priority
+            uint8_t tx_unencrypted : 1; // meshtastic_MeshPacket::tx_unencrypted
         };
     };
 } PacketCacheMetadata;