Fixed WS281x output on ESP32

Fixed potential out-of-bounds write in MQTT
Fixed IR pin not changeable if IR disabled
Fixed XML API <wv> containing -1 on Manual only RGBW mode (see #888, #1783)

CHANGELOG.md

@@ -2,6 +2,13 @@
 
 ### Builds after release 0.12.0
 
+#### Build 2105200
+
+-   Fixed WS281x output on ESP32
+-   Fixed potential out-of-bounds write in MQTT
+-   Fixed IR pin not changeable if IR disabled
+-   Fixed XML API <wv> containing -1 on Manual only RGBW mode (see #888, #1783)
+
 #### Build 2105171
 
 -   Always copy MQTT payloads to prevent non-0-terminated strings

wled00/bus_wrapper.h

@@ -837,7 +837,7 @@ class PolyBus {
   }
 
   //gives back the internal type index (I_XX_XXX_X above) for the input 
-  static uint8_t getI(uint8_t busType, uint8_t* pins, uint8_t num = 0, bool rgbwOverride = false) {
+  static uint8_t getI(uint8_t busType, uint8_t* pins, uint8_t num = 0) {
     if (!IS_DIGITAL(busType)) return I_NONE;
     if (IS_2PIN(busType)) { //SPI LED chips
       bool isHSPI = false;
@@ -863,7 +863,7 @@ class PolyBus {
       switch (busType) {
         case TYPE_WS2812_RGB:
         case TYPE_WS2812_WWA:
-          return (rgbwOverride ? I_8266_U0_NEO_4 : I_8266_U0_NEO_3) + offset;
+          return I_8266_U0_NEO_3 + offset;
         case TYPE_SK6812_RGBW:
           return I_8266_U0_NEO_4 + offset;
         case TYPE_WS2811_400KHZ:
@@ -877,7 +877,7 @@ class PolyBus {
       switch (busType) {
         case TYPE_WS2812_RGB:
         case TYPE_WS2812_WWA:
-          return (rgbwOverride ? I_32_R0_NEO_3 : I_32_R0_NEO_4) + offset;
+          return I_32_R0_NEO_3 + offset;
         case TYPE_SK6812_RGBW:
           return I_32_R0_NEO_4 + offset;
         case TYPE_WS2811_400KHZ:

wled00/cfg.cpp

@@ -140,7 +140,6 @@ bool deserializeConfig(JsonObject doc, bool fromFS) {
   CJSON(macroLongPress,hw_btn_ins_0_macros[1]);
   CJSON(macroDoublePress, hw_btn_ins_0_macros[2]);
 
-  #ifndef WLED_DISABLE_INFRARED
   int hw_ir_pin = hw["ir"]["pin"] | -2; // 4
   if (hw_ir_pin > -2) {
     if (pinManager.allocatePin(hw_ir_pin,false)) {
@@ -149,7 +148,6 @@ bool deserializeConfig(JsonObject doc, bool fromFS) {
       irPin = -1;
     }
   }
-  #endif
   CJSON(irEnabled, hw["ir"]["type"]);
 
   JsonObject relay = hw[F("relay")];
@@ -508,11 +506,9 @@ void serializeConfig() {
   hw_btn_ins_0_macros.add(macroLongPress);
   hw_btn_ins_0_macros.add(macroDoublePress);
 
-  #ifndef WLED_DISABLE_INFRARED
   JsonObject hw_ir = hw.createNestedObject("ir");
   hw_ir["pin"] = irPin;
   hw_ir[F("type")] = irEnabled;              // the byte 'irEnabled' does contain the IR-Remote Type ( 0=disabled )
-  #endif
 
   JsonObject hw_relay = hw.createNestedObject(F("relay"));
   hw_relay["pin"] = rlyPin;

wled00/mqtt.cpp

@@ -64,9 +64,9 @@ void onMqttMessage(char* topic, char* payload, AsyncMqttClientMessageProperties
   }
   //make a copy of the payload to 0-terminate it
   char* payloadStr = new char[len+1];
+  if (payloadStr == nullptr) return; //no mem
   strncpy(payloadStr, payload, len);
   payloadStr[len] = '\0';
-  if (payloadStr == nullptr) return; //no mem
   DEBUG_PRINTLN(payloadStr);
 
   size_t topicPrefixLen = strlen(mqttDeviceTopic);

wled00/set.cpp

@@ -78,9 +78,7 @@ void handleSettingsSet(AsyncWebServerRequest *request, byte subPage)
     int t = 0;
 
     if (rlyPin>=0 && pinManager.isPinAllocated(rlyPin)) pinManager.deallocatePin(rlyPin);
-    #ifndef WLED_DISABLE_INFRARED
     if (irPin>=0 && pinManager.isPinAllocated(irPin)) pinManager.deallocatePin(irPin);
-    #endif
     if (btnPin>=0 && pinManager.isPinAllocated(btnPin)) pinManager.deallocatePin(btnPin);
     //TODO remove all busses, but not in this system call
     //busses->removeAll();
@@ -128,14 +126,12 @@ void handleSettingsSet(AsyncWebServerRequest *request, byte subPage)
     if (t > 0 && t <= MAX_LEDS) ledCount = t;
 
     // upate other pins
-    #ifndef WLED_DISABLE_INFRARED
     int hw_ir_pin = request->arg(F("IR")).toInt();
     if (pinManager.isPinOk(hw_ir_pin) && pinManager.allocatePin(hw_ir_pin,false)) {
       irPin = hw_ir_pin;
     } else {
       irPin = -1;
     }
-    #endif
 
     int hw_rly_pin = request->arg(F("RL")).toInt();
     if (pinManager.allocatePin(hw_rly_pin,true)) {

wled00/wled.h

@@ -8,7 +8,7 @@
  */
 
 // version code in format yymmddb (b = daily build)
-#define VERSION 2105171
+#define VERSION 2105200
 
 //uncomment this if you have a "my_config.h" file you'd like to use
 //#define WLED_USE_MY_CONFIG
@@ -204,7 +204,11 @@ WLED_GLOBAL bool rlyMde _INIT(true);
 WLED_GLOBAL bool rlyMde _INIT(RLYMDE);
 #endif
 #ifndef IRPIN
-WLED_GLOBAL int8_t irPin _INIT(4);
+  #ifdef WLED_DISABLE_INFRARED
+  WLED_GLOBAL int8_t irPin _INIT(-1);
+  #else
+  WLED_GLOBAL int8_t irPin _INIT(4);
+  #endif
 #else
 WLED_GLOBAL int8_t irPin _INIT(IRPIN);
 #endif

wled00/xml.cpp

@@ -51,7 +51,7 @@ void XML_response(AsyncWebServerRequest *request, char* dest)
   oappend(SET_F("</ix><fp>"));
   oappendi(effectPalette);
   oappend(SET_F("</fp><wv>"));
-  if (strip.rgbwMode) {
+  if (strip.isRgbw) {
    oappendi(col[3]);
   } else {
    oappend("-1");