Add built-in TLS 1.3 stack: server side, EC support

examples/device-dashboard/Makefile

@@ -49,6 +49,8 @@ ifeq ($(TLS), mbedtls)
 CFLAGS += -DMG_TLS=MG_TLS_MBED -Wno-conversion -Imbedtls/include
 CFLAGS += -DMBEDTLS_CONFIG_FILE=\"mbedtls_config.h\" mbedtls/library/*.c
 $(PROG): mbedtls
+else
+CFLAGS += -DMG_TLS=MG_TLS_BUILTIN
 endif
 
 # Cleanup. Delete built program and all build artifacts

examples/device-dashboard/net.c

@@ -123,9 +123,9 @@ static void handle_debug(struct mg_connection *c, struct mg_http_message *hm) {
 }
 
 static size_t print_int_arr(void (*out)(char, void *), void *ptr, va_list *ap) {
-  size_t len = 0, num = va_arg(*ap, size_t);  // Number of items in the array
+  size_t i, len = 0, num = va_arg(*ap, size_t);  // Number of items in the array
   int *arr = va_arg(*ap, int *);              // Array ptr
-  for (size_t i = 0; i < num; i++) {
+  for (i = 0; i < num; i++) {
     len += mg_xprintf(out, ptr, "%s%d", i == 0 ? "" : ",", arr[i]);
   }
   return len;
@@ -168,21 +168,19 @@ static void handle_events_get(struct mg_connection *c,
 
 static void handle_settings_set(struct mg_connection *c, struct mg_str body) {
   struct settings settings;
+  char *s = mg_json_get_str(body, "$.device_name");
+  bool ok = true;
   memset(&settings, 0, sizeof(settings));
   mg_json_get_bool(body, "$.log_enabled", &settings.log_enabled);
   settings.log_level = mg_json_get_long(body, "$.log_level", 0);
   settings.brightness = mg_json_get_long(body, "$.brightness", 0);
-  char *s = mg_json_get_str(body, "$.device_name");
   if (s && strlen(s) < MAX_DEVICE_NAME) {
     free(settings.device_name);
     settings.device_name = s;
   } else {
     free(s);
   }
-
-  // Save to the device flash
-  s_settings = settings;
-  bool ok = true;
+  s_settings = settings; // Save to the device flash
   mg_http_reply(c, 200, s_json_header,
                 "{%m:%s,%m:%m}",                          //
                 MG_ESC("status"), ok ? "true" : "false",  //

examples/device-dashboard/packed_fs.c

@@ -652,7 +652,7 @@ static const unsigned char v1[] = {
    0, 0 // .
 };
 static const unsigned char v2[] = {
-  31, 139,   8,   8, 246,   5, 126, 101,   0,   3,  99, 111, // ......~e..co
+  31, 139,   8,   8,  87, 102, 129, 101,   0,   3,  99, 111, // ....Wf.e..co
  109, 112, 111, 110, 101, 110, 116, 115,  46, 106, 115,   0, // mponents.js.
  237,  93, 235, 115, 219,  70, 146, 255, 238, 191,  98, 162, // .].s.F....b.
  242,  45, 169, 181,   0, 225,  77,  64, 182, 148, 114, 156, // .-....M@..r.
@@ -2668,7 +2668,7 @@ static const struct packed_file {
   time_t mtime;
 } packed_files[] = {
   {"/web_root/bundle.js.gz", v1, sizeof(v1), 1695912421},
-  {"/web_root/components.js.gz", v2, sizeof(v2), 1702757878},
+  {"/web_root/components.js.gz", v2, sizeof(v2), 1702979159},
   {"/web_root/history.min.js.gz", v3, sizeof(v3), 1695912421},
   {"/web_root/index.html.gz", v4, sizeof(v4), 1693654553},
   {"/web_root/main.css.gz", v5, sizeof(v5), 1702757929},

examples/rp2040/pico-rndis-device/main.c

@@ -10,8 +10,13 @@ bool hal_gpio_read(int pin) {
   return (pin >= 0 && pin <= 29) ? gpio_get_out_level((uint) pin) : false;
 }
 
-void hal_gpio_write(int pin, bool val) {
-  if (pin >= 0 && pin <= 29) gpio_put((uint) pin, val);
+bool hal_gpio_write(int pin, bool val) {
+  if (pin >= 0 && pin <= 29) {
+    gpio_put((uint) pin, val);
+    return true;
+  } else {
+    return false;
+  }
 }
 
 int hal_led_pin(void) {
@@ -56,6 +61,10 @@ static void fn(struct mg_connection *c, int ev, void *ev_data, void *fn_dta) {
   if (ev == MG_EV_HTTP_MSG) return mg_http_reply(c, 200, "", "ok\n");
 }
 
+uint64_t mg_now(void) {
+  return mg_millis();
+}
+
 int main(void) {
   gpio_init(PICO_DEFAULT_LED_PIN);
   gpio_set_dir(PICO_DEFAULT_LED_PIN, GPIO_OUT);

examples/stm32/nucleo-f746zg-make-baremetal-builtin/Makefile

@@ -13,6 +13,7 @@ SOURCES += mongoose.c net.c packed_fs.c
 
 # Example specific build options. See README.md
 CFLAGS += -DHTTP_URL=\"http://0.0.0.0/\" -DHTTPS_URL=\"https://0.0.0.0/\"
+CFLAGS += -DMG_TLS=MG_TLS_BUILTIN
 
 ifeq ($(OS),Windows_NT)
   RM = cmd /C del /Q /F /S

examples/stm32/nucleo-h723zg-make-baremetal-builtin/main.c

@@ -24,8 +24,9 @@ void mg_random(void *buf, size_t len) {  // Use on-board RNG
 }
 
 #ifdef MQTT_DASHBOARD
-void hal_gpio_write(int pin, bool status) {  // For MQTT dashboard HAL
+bool hal_gpio_write(int pin, bool status) {  // For MQTT dashboard HAL
   gpio_write((uint16_t) pin, status);
+  return true;
 }
 
 bool hal_gpio_read(int pin) {  // For MQTT dashboard HAL