/*
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Copyright (c) 2010-2018 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 v1.0
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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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http://www.eclipse.org/legal/epl-v10.html
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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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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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#ifdef WITH_PERSISTENCE
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#ifndef WIN32
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#include <arpa/inet.h>
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#endif
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#include <assert.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <time.h>
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#include "mosquitto_broker_internal.h"
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#include "memory_mosq.h"
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#include "mqtt_protocol.h"
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#include "persist.h"
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#include "property_mosq.h"
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#include "time_mosq.h"
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#include "util_mosq.h"
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int persist__chunk_header_read_v5(FILE *db_fptr, int *chunk, int *length)
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{
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size_t rlen;
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struct PF_header header;
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rlen = fread(&header, sizeof(struct PF_header), 1, db_fptr);
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if(rlen != 1) return 1;
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*chunk = ntohl(header.chunk);
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*length = ntohl(header.length);
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return MOSQ_ERR_SUCCESS;
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}
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int persist__chunk_cfg_read_v5(FILE *db_fptr, struct PF_cfg *chunk)
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{
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if(fread(chunk, sizeof(struct PF_cfg), 1, db_fptr) != 1){
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log__printf(NULL, MOSQ_LOG_ERR, "Error: %s.", strerror(errno));
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return 1;
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}
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return MOSQ_ERR_SUCCESS;
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}
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int persist__chunk_client_read_v5(FILE *db_fptr, struct P_client *chunk)
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{
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int rc;
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read_e(db_fptr, &chunk->F, sizeof(struct PF_client));
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chunk->F.session_expiry_interval = ntohl(chunk->F.session_expiry_interval);
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chunk->F.last_mid = ntohs(chunk->F.last_mid);
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chunk->F.id_len = ntohs(chunk->F.id_len);
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rc = persist__read_string_len(db_fptr, &chunk->client_id, chunk->F.id_len);
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if(rc || !chunk->client_id){
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return 1;
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}else{
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return MOSQ_ERR_SUCCESS;
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}
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error:
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log__printf(NULL, MOSQ_LOG_ERR, "Error: %s.", strerror(errno));
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return 1;
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}
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int persist__chunk_client_msg_read_v5(FILE *db_fptr, struct P_client_msg *chunk, uint32_t length)
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{
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mosquitto_property *properties = NULL;
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struct mosquitto__packet prop_packet;
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int rc;
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read_e(db_fptr, &chunk->F, sizeof(struct PF_client_msg));
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chunk->F.mid = ntohs(chunk->F.mid);
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chunk->F.id_len = ntohs(chunk->F.id_len);
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length -= (sizeof(struct PF_client_msg) + chunk->F.id_len);
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rc = persist__read_string_len(db_fptr, &chunk->client_id, chunk->F.id_len);
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if(rc){
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return rc;
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}
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if(length > 0){
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memset(&prop_packet, 0, sizeof(struct mosquitto__packet));
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prop_packet.remaining_length = length;
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prop_packet.payload = mosquitto__malloc(length);
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if(!prop_packet.payload){
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return MOSQ_ERR_NOMEM;
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}
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read_e(db_fptr, prop_packet.payload, length);
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rc = property__read_all(CMD_PUBLISH, &prop_packet, &properties);
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mosquitto__free(prop_packet.payload);
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if(rc){
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return rc;
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}
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}
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chunk->properties = properties;
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return MOSQ_ERR_SUCCESS;
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error:
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log__printf(NULL, MOSQ_LOG_ERR, "Error: %s.", strerror(errno));
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return 1;
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}
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int persist__chunk_msg_store_read_v5(FILE *db_fptr, struct P_msg_store *chunk, uint32_t length)
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{
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int rc = 0;
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mosquitto_property *properties = NULL;
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struct mosquitto__packet prop_packet;
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memset(&prop_packet, 0, sizeof(struct mosquitto__packet));
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read_e(db_fptr, &chunk->F, sizeof(struct PF_msg_store));
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chunk->F.payloadlen = ntohl(chunk->F.payloadlen);
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if(chunk->F.payloadlen > MQTT_MAX_PAYLOAD){
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return MOSQ_ERR_INVAL;
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}
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chunk->F.source_mid = ntohs(chunk->F.source_mid);
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chunk->F.source_id_len = ntohs(chunk->F.source_id_len);
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chunk->F.source_username_len = ntohs(chunk->F.source_username_len);
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chunk->F.topic_len = ntohs(chunk->F.topic_len);
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chunk->F.source_port = ntohs(chunk->F.source_port);
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length -= (sizeof(struct PF_msg_store) + chunk->F.payloadlen + chunk->F.source_id_len + chunk->F.source_username_len + chunk->F.topic_len);
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if(chunk->F.source_id_len){
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rc = persist__read_string_len(db_fptr, &chunk->source.id, chunk->F.source_id_len);
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if(rc){
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return rc;
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}
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}
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if(chunk->F.source_username_len){
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rc = persist__read_string_len(db_fptr, &chunk->source.username, chunk->F.source_username_len);
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if(rc){
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mosquitto__free(chunk->source.id);
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chunk->source.id = NULL;
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return rc;
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}
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}
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rc = persist__read_string_len(db_fptr, &chunk->topic, chunk->F.topic_len);
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if(rc){
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mosquitto__free(chunk->source.id);
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mosquitto__free(chunk->source.username);
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chunk->source.id = NULL;
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chunk->source.username = NULL;
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return rc;
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}
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if(chunk->F.payloadlen > 0){
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if(UHPA_ALLOC(chunk->payload, chunk->F.payloadlen) == 0){
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mosquitto__free(chunk->source.id);
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mosquitto__free(chunk->source.username);
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mosquitto__free(chunk->topic);
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chunk->source.id = NULL;
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chunk->source.username = NULL;
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chunk->topic = NULL;
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log__printf(NULL, MOSQ_LOG_ERR, "Error: Out of memory.");
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return MOSQ_ERR_NOMEM;
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}
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read_e(db_fptr, UHPA_ACCESS(chunk->payload, chunk->F.payloadlen), chunk->F.payloadlen);
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}
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if(length > 0){
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prop_packet.remaining_length = length;
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prop_packet.payload = mosquitto__malloc(length);
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if(!prop_packet.payload){
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mosquitto__free(chunk->source.id);
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mosquitto__free(chunk->source.username);
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mosquitto__free(chunk->topic);
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return MOSQ_ERR_NOMEM;
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}
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read_e(db_fptr, prop_packet.payload, length);
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rc = property__read_all(CMD_PUBLISH, &prop_packet, &properties);
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mosquitto__free(prop_packet.payload);
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if(rc){
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mosquitto__free(chunk->source.id);
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mosquitto__free(chunk->source.username);
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mosquitto__free(chunk->topic);
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return rc;
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}
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}
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chunk->properties = properties;
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return MOSQ_ERR_SUCCESS;
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error:
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log__printf(NULL, MOSQ_LOG_ERR, "Error: %s.", strerror(errno));
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mosquitto__free(chunk->source.id);
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mosquitto__free(chunk->source.username);
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mosquitto__free(chunk->topic);
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mosquitto__free(prop_packet.payload);
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return 1;
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}
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int persist__chunk_retain_read_v5(FILE *db_fptr, struct P_retain *chunk)
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{
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if(fread(&chunk->F, sizeof(struct P_retain), 1, db_fptr) != 1){
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log__printf(NULL, MOSQ_LOG_ERR, "Error: %s.", strerror(errno));
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return 1;
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}
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return MOSQ_ERR_SUCCESS;
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}
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int persist__chunk_sub_read_v5(FILE *db_fptr, struct P_sub *chunk)
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{
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int rc;
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read_e(db_fptr, &chunk->F, sizeof(struct PF_sub));
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chunk->F.identifier = ntohl(chunk->F.identifier);
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chunk->F.id_len = ntohs(chunk->F.id_len);
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chunk->F.topic_len = ntohs(chunk->F.topic_len);
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rc = persist__read_string_len(db_fptr, &chunk->client_id, chunk->F.id_len);
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if(rc){
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return rc;
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}
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rc = persist__read_string_len(db_fptr, &chunk->topic, chunk->F.topic_len);
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if(rc){
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mosquitto__free(chunk->client_id);
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chunk->client_id = NULL;
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return rc;
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}
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return MOSQ_ERR_SUCCESS;
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error:
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log__printf(NULL, MOSQ_LOG_ERR, "Error: %s.", strerror(errno));
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return 1;
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}
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#endif
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