mirror of
https://github.com/eclipse-mosquitto/mosquitto.git
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105 lines
2.8 KiB
C
105 lines
2.8 KiB
C
/*
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Copyright (c) 2009-2021 Roger Light <roger@atchoo.org>
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All rights reserved. This program and the accompanying materials
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are made available under the terms of the Eclipse Public License 2.0
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and Eclipse Distribution License v1.0 which accompany this distribution.
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The Eclipse Public License is available at
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https://www.eclipse.org/legal/epl-2.0/
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and the Eclipse Distribution License is available at
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http://www.eclipse.org/org/documents/edl-v10.php.
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SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
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Contributors:
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Roger Light - initial implementation and documentation.
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*/
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#include "config.h"
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#include <assert.h>
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#include <stdio.h>
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#include <string.h>
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#include "mosquitto.h"
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#include "logging_mosq.h"
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#include "messages_mosq.h"
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#include "mosquitto/mqtt_protocol.h"
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#include "net_mosq.h"
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#include "packet_mosq.h"
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#include "read_handle.h"
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#include "send_mosq.h"
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#include "util_mosq.h"
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int handle__packet(struct mosquitto *mosq)
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{
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int rc = MOSQ_ERR_INVAL;
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assert(mosq);
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switch((mosq->in_packet.command)&0xF0){
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case CMD_PINGREQ:
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rc = handle__pingreq(mosq);
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break;
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case CMD_PINGRESP:
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rc = handle__pingresp(mosq);
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break;
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case CMD_PUBACK:
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rc = handle__pubackcomp(mosq, "PUBACK");
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break;
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case CMD_PUBCOMP:
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rc = handle__pubackcomp(mosq, "PUBCOMP");
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break;
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case CMD_PUBLISH:
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rc = handle__publish(mosq);
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break;
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case CMD_PUBREC:
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rc = handle__pubrec(mosq);
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break;
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case CMD_PUBREL:
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rc = handle__pubrel(mosq);
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break;
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case CMD_CONNACK:
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rc = handle__connack(mosq);
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break;
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case CMD_SUBACK:
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rc = handle__suback(mosq);
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break;
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case CMD_UNSUBACK:
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rc = handle__unsuback(mosq);
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break;
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case CMD_DISCONNECT:
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rc = handle__disconnect(mosq);
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break;
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case CMD_AUTH:
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rc = handle__auth(mosq);
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break;
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default:
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/* If we don't recognise the command, return an error straight away. */
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log__printf(mosq, MOSQ_LOG_ERR, "Error: Unrecognised command %d\n", (mosq->in_packet.command)&0xF0);
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rc = MOSQ_ERR_PROTOCOL;
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break;
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}
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if(mosq->protocol == mosq_p_mqtt5){
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if(rc == MOSQ_ERR_PROTOCOL || rc == MOSQ_ERR_DUPLICATE_PROPERTY){
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send__disconnect(mosq, MQTT_RC_PROTOCOL_ERROR, NULL);
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}else if(rc == MOSQ_ERR_MALFORMED_PACKET || rc == MOSQ_ERR_MALFORMED_UTF8){
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send__disconnect(mosq, MQTT_RC_MALFORMED_PACKET, NULL);
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}else if(rc == MOSQ_ERR_QOS_NOT_SUPPORTED){
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send__disconnect(mosq, MQTT_RC_QOS_NOT_SUPPORTED, NULL);
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}else if(rc == MOSQ_ERR_RETAIN_NOT_SUPPORTED){
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send__disconnect(mosq, MQTT_RC_RETAIN_NOT_SUPPORTED, NULL);
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}else if(rc == MOSQ_ERR_TOPIC_ALIAS_INVALID){
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send__disconnect(mosq, MQTT_RC_TOPIC_ALIAS_INVALID, NULL);
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}else if(rc == MOSQ_ERR_RECEIVE_MAXIMUM_EXCEEDED){
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send__disconnect(mosq, MQTT_RC_RECEIVE_MAXIMUM_EXCEEDED, NULL);
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}else if(rc == MOSQ_ERR_UNKNOWN || rc == MOSQ_ERR_NOMEM){
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send__disconnect(mosq, MQTT_RC_UNSPECIFIED, NULL);
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}
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}
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return rc;
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}
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