From be68aaed20aa35bf97cfdb214925885b190f1963 Mon Sep 17 00:00:00 2001
From: Scott Powell <sqij@protonmail.com>
Date: Sun, 13 Jul 2025 18:50:52 +1000
Subject: [PATCH] * simple_sensor: new REQ_TYPE_GET_ACCESS_LIST

---
 examples/simple_sensor/SensorMesh.cpp | 14 ++++++++++++++
 examples/simple_sensor/SensorMesh.h   |  4 +---
 2 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/examples/simple_sensor/SensorMesh.cpp b/examples/simple_sensor/SensorMesh.cpp
index 2943fd90..d169f9b5 100644
--- a/examples/simple_sensor/SensorMesh.cpp
+++ b/examples/simple_sensor/SensorMesh.cpp
@@ -51,6 +51,7 @@
 #define REQ_TYPE_KEEP_ALIVE          0x02
 #define REQ_TYPE_GET_TELEMETRY_DATA  0x03
 #define REQ_TYPE_GET_AVG_MIN_MAX     0x04
+#define REQ_TYPE_GET_ACCESS_LIST     0x05
 
 #define RESP_SERVER_LOGIN_OK      0   // response to ANON_REQ
 
@@ -286,6 +287,19 @@ uint8_t SensorMesh::handleRequest(uint16_t perms, uint32_t sender_timestamp, uin
     }
     return ofs;
   }
+  if (req_type == REQ_TYPE_GET_ACCESS_LIST && (perms & PERM_IS_ADMIN) != 0) {
+    uint8_t res1 = payload[0];   // reserved for future  (extra query params)
+    uint8_t res2 = payload[1];
+    if (res1 == 0 && res2 == 0) {
+      uint8_t ofs = 4;
+      for (int i = 0; i < num_contacts && ofs + 8 <= sizeof(reply_data) - 4; i++) {
+        auto c = &contacts[i];
+        memcpy(&reply_data[ofs], c->id.pub_key, 6); ofs += 6;  // just 6-byte pub_key prefix
+        memcpy(&reply_data[ofs], &c->permissions, 2); ofs += 2;
+      }
+      return ofs;
+    }
+  }
   return 0;  // unknown command
 }
 
diff --git a/examples/simple_sensor/SensorMesh.h b/examples/simple_sensor/SensorMesh.h
index 6edbfc26..77c30a8d 100644
--- a/examples/simple_sensor/SensorMesh.h
+++ b/examples/simple_sensor/SensorMesh.h
@@ -51,9 +51,7 @@ struct ContactInfo {
 
 #define FIRMWARE_ROLE "sensor"
 
-#ifndef MAX_CONTACTS
-  #define MAX_CONTACTS           32
-#endif
+#define MAX_CONTACTS           20
 
 #define MAX_SEARCH_RESULTS      8
 #define MAX_CONCURRENT_ALERTS   4