1 files changed, 62 insertions, 0 deletions
diff --git a/src/fluent-bit/plugins/in_mqtt/mqtt_prot.h b/src/fluent-bit/plugins/in_mqtt/mqtt_prot.h
new file mode 100644
index 000000000..74c4fe32e
--- /dev/null
+++ b/src/fluent-bit/plugins/in_mqtt/mqtt_prot.h
@@ -0,0 +1,62 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+
+/*  Fluent Bit
+ *  ==========
+ *  Copyright (C) 2015-2022 The Fluent Bit Authors
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+#ifndef FLB_MQTT_PROT_H
+#define FLB_MQTT_PROT_H
+
+#include "mqtt_conn.h"
+
+/*
+ * Specs definition from 2.2.1 MQTT Control Packet:
+ *
+ * http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc398718021
+ */
+#define MQTT_CONNECT      1
+#define MQTT_CONNACK      2
+#define MQTT_PUBLISH      3
+#define MQTT_PUBACK       4
+#define MQTT_PUBREC       5
+#define MQTT_PUBREL       6
+#define MQTT_PUBCOMP      7
+#define MQTT_PINGREQ     12
+#define MQTT_PINGRESP    13
+#define MQTT_DISCONNECT  14
+
+/* CONNACK status codes */
+#define MQTT_CONN_ACCEPTED         0
+#define MQTT_CONN_REFUSED_PROTOCOL 1
+#define MQTT_CONN_REFUSED_IDENTIF  2
+#define MQTT_CONN_REFUSED_SERVER   3
+#define MQTT_CONN_REFUSED_BADCRED  4
+#define MQTT_CONN_REFUSED_NOAUTH   5
+
+/* QOS Flag status */
+#define MQTT_QOS_LEV0              0  /* no reply      */
+#define MQTT_QOS_LEV1              1  /* PUBACK packet */
+#define MQTT_QOS_LEV2              2  /* PUBREC packet */
+
+/* Specific macros for Fluent Bit handling, not related to MQTT spec */
+#define MQTT_HANGUP      -2  /* MQTT client is closing      */
+#define MQTT_ERROR       -1  /* MQTT protocol error, hangup */
+#define MQTT_OK           0  /* Everything is OK            */
+#define MQTT_MORE         1  /* need to read more data      */
+
+int mqtt_prot_parser(struct mqtt_conn *conn);
+
+#endif