MQTT at least talks to server, works in native and esp32

src/mesh/generated/mqtt.pb.h

@@ -0,0 +1,55 @@
+/* Automatically generated nanopb header */
+/* Generated by nanopb-0.4.4 */
+
+#ifndef PB_MQTT_PB_H_INCLUDED
+#define PB_MQTT_PB_H_INCLUDED
+#include <pb.h>
+#include "mesh.pb.h"
+
+#if PB_PROTO_HEADER_VERSION != 40
+#error Regenerate this file with the current version of nanopb generator.
+#endif
+
+/* Struct definitions */
+typedef struct _ServiceEnvelope {
+    struct _MeshPacket *packet;
+    char *channel_id;
+    char *gateway_id;
+} ServiceEnvelope;
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Initializer values for message structs */
+#define ServiceEnvelope_init_default             {NULL, NULL, NULL}
+#define ServiceEnvelope_init_zero                {NULL, NULL, NULL}
+
+/* Field tags (for use in manual encoding/decoding) */
+#define ServiceEnvelope_packet_tag               1
+#define ServiceEnvelope_channel_id_tag           2
+#define ServiceEnvelope_gateway_id_tag           3
+
+/* Struct field encoding specification for nanopb */
+#define ServiceEnvelope_FIELDLIST(X, a) \
+X(a, POINTER,  OPTIONAL, MESSAGE,  packet,            1) \
+X(a, POINTER,  SINGULAR, STRING,   channel_id,        2) \
+X(a, POINTER,  SINGULAR, STRING,   gateway_id,        3)
+#define ServiceEnvelope_CALLBACK NULL
+#define ServiceEnvelope_DEFAULT NULL
+#define ServiceEnvelope_packet_MSGTYPE MeshPacket
+
+extern const pb_msgdesc_t ServiceEnvelope_msg;
+
+/* Defines for backwards compatibility with code written before nanopb-0.4.0 */
+#define ServiceEnvelope_fields &ServiceEnvelope_msg
+
+/* Maximum encoded size of messages (where known) */
+/* ServiceEnvelope_size depends on runtime parameters */
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif