* repeater & room server: new CLI config "flood.max"

examples/simple_repeater/main.cpp

@@ -235,7 +235,9 @@ protected:
   }
 
   bool allowPacketForward(const mesh::Packet* packet) override {
-    return !_prefs.disable_fwd;
+    if (_prefs.disable_fwd) return false;
+    if (packet->isRouteFlood() && packet->path_len >= _prefs.flood_max) return false;
+    return true;
   }
 
   const char* getLogDateTime() override {
@@ -536,6 +538,7 @@ public:
     _prefs.cr = LORA_CR;
     _prefs.tx_power_dbm = LORA_TX_POWER;
     _prefs.advert_interval = 1;  // default to 2 minutes for NEW installs
+    _prefs.flood_max = 64;
   }
 
   CommonCLI* getCLI() { return &_cli; }

examples/simple_room_server/main.cpp

@@ -304,7 +304,9 @@ protected:
   }
 
   bool allowPacketForward(const mesh::Packet* packet) override {
-    return !_prefs.disable_fwd;
+    if (_prefs.disable_fwd) return false;
+    if (packet->isRouteFlood() && packet->path_len >= _prefs.flood_max) return false;
+    return true;
   }
 
   void onAnonDataRecv(mesh::Packet* packet, uint8_t type, const mesh::Identity& sender, uint8_t* data, size_t len) override {
@@ -568,6 +570,7 @@ public:
     _prefs.tx_power_dbm = LORA_TX_POWER;
     _prefs.disable_fwd = 1;
     _prefs.advert_interval = 1;  // default to 2 minutes for NEW installs
+    _prefs.flood_max = 64;
   #ifdef ROOM_PASSWORD
     StrHelper::strncpy(_prefs.guest_password, ROOM_PASSWORD, sizeof(_prefs.guest_password));
   #endif

src/helpers/CommonCLI.cpp

@@ -41,6 +41,7 @@ void CommonCLI::loadPrefs(FILESYSTEM* fs) {
       file.read((uint8_t *) &_prefs->reserved2, sizeof(_prefs->reserved2));  // 115
       file.read((uint8_t *) &_prefs->bw, sizeof(_prefs->bw));  // 116
       file.read(pad, 4);   // 120
+      file.read((uint8_t *) &_prefs->flood_max, sizeof(_prefs->flood_max));   // 124
 
       // sanitise bad pref values
       _prefs->rx_delay_base = constrain(_prefs->rx_delay_base, 0, 20.0f);
@@ -91,6 +92,7 @@ void CommonCLI::savePrefs(FILESYSTEM* fs) {
     file.write((uint8_t *) &_prefs->reserved2, sizeof(_prefs->reserved2));  // 115
     file.write((uint8_t *) &_prefs->bw, sizeof(_prefs->bw));  // 116
     file.write(pad, 4);   // 120
+    file.write((uint8_t *) &_prefs->flood_max, sizeof(_prefs->flood_max));   // 124
 
     file.close();
   }
@@ -176,6 +178,8 @@ void CommonCLI::handleCommand(uint32_t sender_timestamp, const char* command, ch
         sprintf(reply, "> %s", StrHelper::ftoa(_prefs->rx_delay_base));
       } else if (memcmp(config, "txdelay", 7) == 0) {
         sprintf(reply, "> %s", StrHelper::ftoa(_prefs->tx_delay_factor));
+      } else if (memcmp(config, "flood.max", 9) == 0) {
+        sprintf(reply, "> %d", (uint32_t)_prefs->flood_max);
       } else if (memcmp(config, "direct.txdelay", 14) == 0) {
         sprintf(reply, "> %s", StrHelper::ftoa(_prefs->direct_tx_delay_factor));
       } else if (memcmp(config, "tx", 2) == 0 && (config[2] == 0 || config[2] == ' ')) {
@@ -262,6 +266,15 @@ void CommonCLI::handleCommand(uint32_t sender_timestamp, const char* command, ch
         } else {
           strcpy(reply, "Error, cannot be negative");
         }
+      } else if (memcmp(config, "flood.max ", 10) == 0) {
+        uint8_t m = atoi(&config[10]);
+        if (m <= 64) {
+          _prefs->flood_max = m;
+          savePrefs();
+          strcpy(reply, "OK");
+        } else {
+          strcpy(reply, "Error, max 64");
+        }
       } else if (memcmp(config, "direct.txdelay ", 15) == 0) {
         float f = atof(&config[15]);
         if (f >= 0) {

src/helpers/CommonCLI.h

@@ -23,6 +23,7 @@ struct NodePrefs {  // persisted to file
     uint8_t reserved1;
     uint8_t reserved2;
     float bw;
+    uint8_t flood_max;
 };
 
 class CommonCLICallbacks {