int config__get_dir_files(const char *include_dir, char ***files, int *file_count)
{
char **l_files = NULL;
int l_file_count = 0;
char **files_tmp;
int len;
int i;
DIR *dh;
struct dirent *de;
dh = opendir(include_dir);
if(!dh){
log__printf(NULL, MOSQ_LOG_ERR, "Error: Unable to open include_dir '%s'.", include_dir);
return 1;
}
while((de = readdir(dh)) != NULL){
if(strlen(de->d_name) > 5){
if(!strcmp(&de->d_name[strlen(de->d_name)-5], ".conf")){
len = strlen(include_dir)+1+strlen(de->d_name)+1;
l_file_count++;
files_tmp = mosquitto__realloc(l_files, l_file_count*sizeof(char *));
if(!files_tmp){
for(i=0; i<l_file_count-1; i++){
mosquitto__free(l_files[i]);
}
mosquitto__free(l_files);
closedir(dh);
return MOSQ_ERR_NOMEM;
}
l_files = files_tmp;
l_files[l_file_count-1] = mosquitto__malloc(len+1);
if(!l_files[l_file_count-1]){
for(i=0; i<l_file_count-1; i++){
mosquitto__free(l_files[i]);
}
mosquitto__free(l_files);
closedir(dh);
return MOSQ_ERR_NOMEM;
}
snprintf(l_files[l_file_count-1], len, "%s/%s", include_dir, de->d_name);
l_files[l_file_count-1][len] = '\0';
}
}
}
closedir(dh);
if(l_files){
qsort(l_files, l_file_count, sizeof(char *), scmp_p);
}
*files = l_files;
*file_count = l_file_count;
return 0;
}
int config__get_dir_files(const char *include_dir, char ***files, int *file_count)
{
int len;
int i;
char **l_files = NULL;
int l_file_count = 0;
char **files_tmp;
HANDLE fh;
char dirpath[MAX_PATH];
WIN32_FIND_DATA find_data;
snprintf(dirpath, MAX_PATH, "%s\\*.conf", include_dir);
fh = FindFirstFile(dirpath, &find_data);
if(fh == INVALID_HANDLE_VALUE){
log__printf(NULL, MOSQ_LOG_ERR, "Error: Unable to open include_dir '%s'.", include_dir);
return 1;
}
do{
len = strlen(include_dir)+1+strlen(find_data.cFileName)+1;
l_file_count++;
files_tmp = mosquitto__realloc(l_files, l_file_count*sizeof(char *));
if(!files_tmp){
for(i=0; i<l_file_count-1; i++){
mosquitto__free(l_files[i]);
}
mosquitto__free(l_files);
FindClose(fh);
return MOSQ_ERR_NOMEM;
}
l_files = files_tmp;
l_files[l_file_count-1] = mosquitto__malloc(len+1);
if(!l_files[l_file_count-1]){
for(i=0; i<l_file_count-1; i++){
mosquitto__free(l_files[i]);
}
mosquitto__free(l_files);
FindClose(fh);
return MOSQ_ERR_NOMEM;
}
snprintf(l_files[l_file_count-1], len, "%s/%s", include_dir, find_data.cFileName);
l_files[l_file_count-1][len] = '\0';
}while(FindNextFile(fh, &find_data));
FindClose(fh);
if(l_files){
qsort(l_files, l_file_count, sizeof(char *), scmp_p);
}
*files = l_files;
*file_count = l_file_count;
return 0;
}
int mosquitto_connect_srv(struct mosquitto *mosq, const char *host, int keepalive, const char *bind_address)
{
#ifdef WITH_SRV
char *h;
int rc;
if(!mosq) return MOSQ_ERR_INVAL;
rc = ares_init(&mosq->achan);
if(rc != ARES_SUCCESS){
return MOSQ_ERR_UNKNOWN;
}
if(!host){
// get local domain
}else{
#ifdef WITH_TLS
if(mosq->tls_cafile || mosq->tls_capath || mosq->tls_psk){
h = mosquitto__malloc(strlen(host) + strlen("_secure-mqtt._tcp.") + 1);
if(!h) return MOSQ_ERR_NOMEM;
sprintf(h, "_secure-mqtt._tcp.%s", host);
}else{
#endif
h = mosquitto__malloc(strlen(host) + strlen("_mqtt._tcp.") + 1);
if(!h) return MOSQ_ERR_NOMEM;
sprintf(h, "_mqtt._tcp.%s", host);
#ifdef WITH_TLS
}
#endif
ares_search(mosq->achan, h, ns_c_in, ns_t_srv, srv_callback, mosq);
mosquitto__free(h);
}
pthread_mutex_lock(&mosq->state_mutex);
mosq->state = mosq_cs_connect_srv;
pthread_mutex_unlock(&mosq->state_mutex);
mosq->keepalive = keepalive;
return MOSQ_ERR_SUCCESS;
#else
return MOSQ_ERR_NOT_SUPPORTED;
#endif
}
int persist__chunk_client_msg_write_v5(FILE *db_fptr, struct P_client_msg *chunk)
{
struct PF_header header;
struct mosquitto__packet prop_packet;
uint16_t id_len = chunk->F.id_len;
uint32_t proplen = 0;
int rc;
memset(&prop_packet, 0, sizeof(struct mosquitto__packet));
if(chunk->properties){
proplen = property__get_length_all(chunk->properties);
proplen += packet__varint_bytes(proplen);
}
chunk->F.mid = htons(chunk->F.mid);
chunk->F.id_len = htons(chunk->F.id_len);
header.chunk = htonl(DB_CHUNK_CLIENT_MSG);
header.length = htonl(sizeof(struct PF_client_msg) + id_len + proplen);
write_e(db_fptr, &header, sizeof(struct PF_header));
write_e(db_fptr, &chunk->F, sizeof(struct PF_client_msg));
write_e(db_fptr, chunk->client_id, id_len);
if(chunk->properties){
if(proplen > 0){
prop_packet.remaining_length = proplen;
prop_packet.packet_length = proplen;
prop_packet.payload = mosquitto__malloc(proplen);
if(!prop_packet.payload){
return MOSQ_ERR_NOMEM;
}
rc = property__write_all(&prop_packet, chunk->properties, true);
if(rc) return rc;
write_e(db_fptr, prop_packet.payload, proplen);
mosquitto__free(prop_packet.payload);
}
}
return MOSQ_ERR_SUCCESS;
error:
log__printf(NULL, MOSQ_LOG_ERR, "Error: %s.", strerror(errno));
return 1;
}
int handle__suback(struct mosquitto *mosq)
{
uint16_t mid;
uint8_t qos;
int *granted_qos;
int qos_count;
int i = 0;
int rc;
assert(mosq);
#ifdef WITH_BROKER
log__printf(NULL, MOSQ_LOG_DEBUG, "Received SUBACK from %s", mosq->id);
#else
log__printf(mosq, MOSQ_LOG_DEBUG, "Client %s received SUBACK", mosq->id);
#endif
rc = packet__read_uint16(&mosq->in_packet, &mid);
if(rc) return rc;
qos_count = mosq->in_packet.remaining_length - mosq->in_packet.pos;
granted_qos = mosquitto__malloc(qos_count*sizeof(int));
if(!granted_qos) return MOSQ_ERR_NOMEM;
while(mosq->in_packet.pos < mosq->in_packet.remaining_length){
rc = packet__read_byte(&mosq->in_packet, &qos);
if(rc){
mosquitto__free(granted_qos);
return rc;
}
granted_qos[i] = (int)qos;
i++;
}
#ifndef WITH_BROKER
pthread_mutex_lock(&mosq->callback_mutex);
if(mosq->on_subscribe){
mosq->in_callback = true;
mosq->on_subscribe(mosq, mosq->userdata, mid, qos_count, granted_qos);
mosq->in_callback = false;
}
pthread_mutex_unlock(&mosq->callback_mutex);
#endif
mosquitto__free(granted_qos);
return MOSQ_ERR_SUCCESS;
}
int send__publish(struct mosquitto *mosq, uint16_t mid, const char *topic, uint32_t payloadlen, const void *payload, int qos, bool retain, bool dup)
{
#ifdef WITH_BROKER
size_t len;
#ifdef WITH_BRIDGE
int i;
struct mosquitto__bridge_topic *cur_topic;
bool match;
int rc;
char *mapped_topic = NULL;
char *topic_temp = NULL;
#endif
#endif
assert(mosq);
assert(topic);
#if defined(WITH_BROKER) && defined(WITH_WEBSOCKETS)
if(mosq->sock == INVALID_SOCKET && !mosq->wsi) return MOSQ_ERR_NO_CONN;
#else
if(mosq->sock == INVALID_SOCKET) return MOSQ_ERR_NO_CONN;
#endif
#ifdef WITH_BROKER
if(mosq->listener && mosq->listener->mount_point){
len = strlen(mosq->listener->mount_point);
if(len < strlen(topic)){
topic += len;
}else{
/* Invalid topic string. Should never happen, but silently swallow the message anyway. */
return MOSQ_ERR_SUCCESS;
}
}
#ifdef WITH_BRIDGE
if(mosq->bridge && mosq->bridge->topics && mosq->bridge->topic_remapping){
for(i=0; i<mosq->bridge->topic_count; i++){
cur_topic = &mosq->bridge->topics[i];
if((cur_topic->direction == bd_both || cur_topic->direction == bd_out)
&& (cur_topic->remote_prefix || cur_topic->local_prefix)){
/* Topic mapping required on this topic if the message matches */
rc = mosquitto_topic_matches_sub(cur_topic->local_topic, topic, &match);
if(rc){
return rc;
}
if(match){
mapped_topic = mosquitto__strdup(topic);
if(!mapped_topic) return MOSQ_ERR_NOMEM;
if(cur_topic->local_prefix){
/* This prefix needs removing. */
if(!strncmp(cur_topic->local_prefix, mapped_topic, strlen(cur_topic->local_prefix))){
topic_temp = mosquitto__strdup(mapped_topic+strlen(cur_topic->local_prefix));
mosquitto__free(mapped_topic);
if(!topic_temp){
return MOSQ_ERR_NOMEM;
}
mapped_topic = topic_temp;
}
}
if(cur_topic->remote_prefix){
/* This prefix needs adding. */
len = strlen(mapped_topic) + strlen(cur_topic->remote_prefix)+1;
topic_temp = mosquitto__malloc(len+1);
if(!topic_temp){
mosquitto__free(mapped_topic);
return MOSQ_ERR_NOMEM;
}
snprintf(topic_temp, len, "%s%s", cur_topic->remote_prefix, mapped_topic);
topic_temp[len] = '\0';
mosquitto__free(mapped_topic);
mapped_topic = topic_temp;
}
log__printf(NULL, MOSQ_LOG_DEBUG, "Sending PUBLISH to %s (d%d, q%d, r%d, m%d, '%s', ... (%ld bytes))", mosq->id, dup, qos, retain, mid, mapped_topic, (long)payloadlen);
G_PUB_BYTES_SENT_INC(payloadlen);
rc = send__real_publish(mosq, mid, mapped_topic, payloadlen, payload, qos, retain, dup);
mosquitto__free(mapped_topic);
return rc;
}
}
}
}
#endif
log__printf(NULL, MOSQ_LOG_DEBUG, "Sending PUBLISH to %s (d%d, q%d, r%d, m%d, '%s', ... (%ld bytes))", mosq->id, dup, qos, retain, mid, topic, (long)payloadlen);
G_PUB_BYTES_SENT_INC(payloadlen);
#else
log__printf(mosq, MOSQ_LOG_DEBUG, "Client %s sending PUBLISH (d%d, q%d, r%d, m%d, '%s', ... (%ld bytes))", mosq->id, dup, qos, retain, mid, topic, (long)payloadlen);
#endif
return send__real_publish(mosq, mid, topic, payloadlen, payload, qos, retain, dup);
}
static char *http__canonical_filename(
#ifndef LWS_LIBRARY_VERSION_NUMBER
struct libwebsocket_context *context,
#endif
struct libwebsocket *wsi,
const char *in,
const char *http_dir)
{
size_t inlen, slen;
char *filename, *filename_canonical;
inlen = strlen(in);
if(in[inlen-1] == '/'){
slen = strlen(http_dir) + inlen + strlen("/index.html") + 2;
}else{
slen = strlen(http_dir) + inlen + 2;
}
filename = mosquitto__malloc(slen);
if(!filename){
libwebsockets_return_http_status(context, wsi, HTTP_STATUS_INTERNAL_SERVER_ERROR, NULL);
return NULL;
}
if(((char *)in)[inlen-1] == '/'){
snprintf(filename, slen, "%s%sindex.html", http_dir, (char *)in);
}else{
snprintf(filename, slen, "%s%s", http_dir, (char *)in);
}
/* Get canonical path and check it is within our http_dir */
#ifdef WIN32
filename_canonical = _fullpath(NULL, filename, 0);
mosquitto__free(filename);
if(!filename_canonical){
libwebsockets_return_http_status(context, wsi, HTTP_STATUS_INTERNAL_SERVER_ERROR, NULL);
return NULL;
}
#else
filename_canonical = realpath(filename, NULL);
mosquitto__free(filename);
if(!filename_canonical){
if(errno == EACCES){
libwebsockets_return_http_status(context, wsi, HTTP_STATUS_FORBIDDEN, NULL);
}else if(errno == EINVAL || errno == EIO || errno == ELOOP){
libwebsockets_return_http_status(context, wsi, HTTP_STATUS_INTERNAL_SERVER_ERROR, NULL);
}else if(errno == ENAMETOOLONG){
libwebsockets_return_http_status(context, wsi, HTTP_STATUS_REQ_URI_TOO_LONG, NULL);
}else if(errno == ENOENT || errno == ENOTDIR){
libwebsockets_return_http_status(context, wsi, HTTP_STATUS_NOT_FOUND, NULL);
}
return NULL;
}
#endif
if(strncmp(http_dir, filename_canonical, strlen(http_dir))){
/* Requested file isn't within http_dir, deny access. */
free(filename_canonical);
libwebsockets_return_http_status(context, wsi, HTTP_STATUS_FORBIDDEN, NULL);
return NULL;
}
return filename_canonical;
}
static int callback_mqtt(struct libwebsocket_context *context,
#endif
struct libwebsocket *wsi,
enum libwebsocket_callback_reasons reason,
void *user,
void *in,
size_t len)
{
struct mosquitto_db *db;
struct mosquitto *mosq = NULL;
struct mosquitto__packet *packet;
int count, i, j;
const struct libwebsocket_protocols *p;
struct libws_mqtt_data *u = (struct libws_mqtt_data *)user;
size_t pos;
uint8_t *buf;
int rc;
uint8_t byte;
db = &int_db;
switch (reason) {
case LWS_CALLBACK_ESTABLISHED:
mosq = context__init(db, WEBSOCKET_CLIENT);
if(mosq){
p = libwebsockets_get_protocol(wsi);
for (i=0; i<db->config->listener_count; i++){
if (db->config->listeners[i].protocol == mp_websockets) {
for (j=0; db->config->listeners[i].ws_protocol[j].name; j++){
if (p == &db->config->listeners[i].ws_protocol[j]){
mosq->listener = &db->config->listeners[i];
mosq->listener->client_count++;
}
}
}
}
if(!mosq->listener){
mosquitto__free(mosq);
return -1;
}
#if !defined(LWS_LIBRARY_VERSION_NUMBER)
mosq->ws_context = context;
#endif
mosq->wsi = wsi;
#ifdef WITH_TLS
if(in){
mosq->ssl = (SSL *)in;
if(!mosq->listener->ssl_ctx){
mosq->listener->ssl_ctx = SSL_get_SSL_CTX(mosq->ssl);
}
}
#endif
u->mosq = mosq;
}else{
return -1;
}
easy_address(libwebsocket_get_socket_fd(wsi), mosq);
if(!mosq->address){
/* getpeername and inet_ntop failed and not a bridge */
mosquitto__free(mosq);
u->mosq = NULL;
return -1;
}
if(mosq->listener->max_connections > 0 && mosq->listener->client_count > mosq->listener->max_connections){
if(db->config->connection_messages == true){
log__printf(NULL, MOSQ_LOG_NOTICE, "Client connection from %s denied: max_connections exceeded.", mosq->address);
}
mosquitto__free(mosq);
u->mosq = NULL;
return -1;
}
mosq->sock = libwebsocket_get_socket_fd(wsi);
HASH_ADD(hh_sock, db->contexts_by_sock, sock, sizeof(mosq->sock), mosq);
break;
case LWS_CALLBACK_CLOSED:
if(!u){
return -1;
}
mosq = u->mosq;
if(mosq){
if(mosq->sock != INVALID_SOCKET){
HASH_DELETE(hh_sock, db->contexts_by_sock, mosq);
mosq->sock = INVALID_SOCKET;
mosq->pollfd_index = -1;
}
mosq->wsi = NULL;
#ifdef WITH_TLS
mosq->ssl = NULL;
#endif
do_disconnect(db, mosq);
}
break;
case LWS_CALLBACK_SERVER_WRITEABLE:
if(!u){
return -1;
}
mosq = u->mosq;
if(!mosq){
return -1;
}
db__message_write(db, mosq);
if(mosq->out_packet && !mosq->current_out_packet){
mosq->current_out_packet = mosq->out_packet;
mosq->out_packet = mosq->out_packet->next;
if(!mosq->out_packet){
mosq->out_packet_last = NULL;
}
}
if(mosq->current_out_packet && !lws_send_pipe_choked(mosq->wsi)){
packet = mosq->current_out_packet;
if(packet->pos == 0 && packet->to_process == packet->packet_length){
/* First time this packet has been dealt with.
* libwebsockets requires that the payload has
* LWS_SEND_BUFFER_PRE_PADDING space available before the
* actual data and LWS_SEND_BUFFER_POST_PADDING afterwards.
* We've already made the payload big enough to allow this,
* but need to move it into position here. */
memmove(&packet->payload[LWS_SEND_BUFFER_PRE_PADDING], packet->payload, packet->packet_length);
packet->pos += LWS_SEND_BUFFER_PRE_PADDING;
}
count = libwebsocket_write(wsi, &packet->payload[packet->pos], packet->to_process, LWS_WRITE_BINARY);
if(count < 0){
if (mosq->state == mosq_cs_disconnect_ws || mosq->state == mosq_cs_disconnecting){
return -1;
}
return 0;
}
#ifdef WITH_SYS_TREE
g_bytes_sent += count;
#endif
packet->to_process -= count;
packet->pos += count;
if(packet->to_process > 0){
if (mosq->state == mosq_cs_disconnect_ws || mosq->state == mosq_cs_disconnecting){
return -1;
}
break;
}
#ifdef WITH_SYS_TREE
g_msgs_sent++;
if(((packet->command)&0xF6) == PUBLISH){
g_pub_msgs_sent++;
}
#endif
/* Free data and reset values */
mosq->current_out_packet = mosq->out_packet;
if(mosq->out_packet){
mosq->out_packet = mosq->out_packet->next;
if(!mosq->out_packet){
mosq->out_packet_last = NULL;
}
}
packet__cleanup(packet);
mosquitto__free(packet);
mosq->next_msg_out = mosquitto_time() + mosq->keepalive;
}
if (mosq->state == mosq_cs_disconnect_ws || mosq->state == mosq_cs_disconnecting){
return -1;
}
if(mosq->current_out_packet){
libwebsocket_callback_on_writable(mosq->ws_context, mosq->wsi);
}
break;
case LWS_CALLBACK_RECEIVE:
if(!u || !u->mosq){
return -1;
}
mosq = u->mosq;
pos = 0;
buf = (uint8_t *)in;
G_BYTES_RECEIVED_INC(len);
while(pos < len){
if(!mosq->in_packet.command){
mosq->in_packet.command = buf[pos];
pos++;
/* Clients must send CONNECT as their first command. */
if(mosq->state == mosq_cs_new && (mosq->in_packet.command&0xF0) != CONNECT){
return -1;
}
}
if(mosq->in_packet.remaining_count <= 0){
do{
if(pos == len){
return 0;
}
byte = buf[pos];
pos++;
mosq->in_packet.remaining_count--;
/* Max 4 bytes length for remaining length as defined by protocol.
* Anything more likely means a broken/malicious client.
*/
if(mosq->in_packet.remaining_count < -4){
return -1;
}
mosq->in_packet.remaining_length += (byte & 127) * mosq->in_packet.remaining_mult;
mosq->in_packet.remaining_mult *= 128;
}while((byte & 128) != 0);
mosq->in_packet.remaining_count *= -1;
if(mosq->in_packet.remaining_length > 0){
mosq->in_packet.payload = mosquitto__malloc(mosq->in_packet.remaining_length*sizeof(uint8_t));
if(!mosq->in_packet.payload){
return -1;
}
mosq->in_packet.to_process = mosq->in_packet.remaining_length;
}
}
if(mosq->in_packet.to_process>0){
if(len - pos >= mosq->in_packet.to_process){
memcpy(&mosq->in_packet.payload[mosq->in_packet.pos], &buf[pos], mosq->in_packet.to_process);
mosq->in_packet.pos += mosq->in_packet.to_process;
pos += mosq->in_packet.to_process;
mosq->in_packet.to_process = 0;
}else{
memcpy(&mosq->in_packet.payload[mosq->in_packet.pos], &buf[pos], len-pos);
mosq->in_packet.pos += len-pos;
mosq->in_packet.to_process -= len-pos;
return 0;
}
}
/* All data for this packet is read. */
mosq->in_packet.pos = 0;
#ifdef WITH_SYS_TREE
G_MSGS_RECEIVED_INC(1);
if(((mosq->in_packet.command)&0xF5) == PUBLISH){
G_PUB_MSGS_RECEIVED_INC(1);
}
#endif
rc = handle__packet(db, mosq);
/* Free data and reset values */
packet__cleanup(&mosq->in_packet);
mosq->last_msg_in = mosquitto_time();
if(rc && (mosq->out_packet || mosq->current_out_packet)) {
if(mosq->state != mosq_cs_disconnecting){
mosq->state = mosq_cs_disconnect_ws;
}
libwebsocket_callback_on_writable(mosq->ws_context, mosq->wsi);
} else if (rc) {
do_disconnect(db, mosq);
return -1;
}
}
break;
default:
break;
}
return 0;
}
int handle__unsubscribe(struct mosquitto_db *db, struct mosquitto *context)
{
uint16_t mid;
char *sub;
int slen;
int rc;
uint8_t reason;
int reason_code_count = 0;
int reason_code_max;
uint8_t *reason_codes = NULL, *reason_tmp;
mosquitto_property *properties = NULL;
if(!context) return MOSQ_ERR_INVAL;
if(context->state != mosq_cs_connected){
return MOSQ_ERR_PROTOCOL;
}
log__printf(NULL, MOSQ_LOG_DEBUG, "Received UNSUBSCRIBE from %s", context->id);
if(context->protocol != mosq_p_mqtt31){
if((context->in_packet.command&0x0F) != 0x02){
return MOSQ_ERR_PROTOCOL;
}
}
if(packet__read_uint16(&context->in_packet, &mid)) return 1;
if(mid == 0) return MOSQ_ERR_PROTOCOL;
if(context->protocol == mosq_p_mqtt5){
rc = property__read_all(CMD_UNSUBSCRIBE, &context->in_packet, &properties);
if(rc) return rc;
/* Immediately free, we don't do anything with User Property at the moment */
mosquitto_property_free_all(&properties);
}
if(context->protocol == mosq_p_mqtt311 || context->protocol == mosq_p_mqtt5){
if(context->in_packet.pos == context->in_packet.remaining_length){
/* No topic specified, protocol error. */
return MOSQ_ERR_PROTOCOL;
}
}
reason_code_max = 10;
reason_codes = mosquitto__malloc(reason_code_max);
if(!reason_codes){
return MOSQ_ERR_NOMEM;
}
while(context->in_packet.pos < context->in_packet.remaining_length){
sub = NULL;
if(packet__read_string(&context->in_packet, &sub, &slen)){
return 1;
}
if(!slen){
log__printf(NULL, MOSQ_LOG_INFO,
"Empty unsubscription string from %s, disconnecting.",
context->id);
mosquitto__free(sub);
return 1;
}
if(mosquitto_sub_topic_check(sub)){
log__printf(NULL, MOSQ_LOG_INFO,
"Invalid unsubscription string from %s, disconnecting.",
context->id);
mosquitto__free(sub);
return 1;
}
log__printf(NULL, MOSQ_LOG_DEBUG, "\t%s", sub);
rc = sub__remove(db, context, sub, db->subs, &reason);
log__printf(NULL, MOSQ_LOG_UNSUBSCRIBE, "%s %s", context->id, sub);
mosquitto__free(sub);
if(rc) return rc;
reason_codes[reason_code_count] = reason;
reason_code_count++;
if(reason_code_count == reason_code_max){
reason_tmp = mosquitto__realloc(reason_codes, reason_code_max*2);
if(!reason_tmp){
mosquitto__free(reason_codes);
return MOSQ_ERR_NOMEM;
}
reason_codes = reason_tmp;
reason_code_max *= 2;
}
}
#ifdef WITH_PERSISTENCE
db->persistence_changes++;
#endif
log__printf(NULL, MOSQ_LOG_DEBUG, "Sending UNSUBACK to %s", context->id);
/* We don't use Reason String or User Property yet. */
rc = send__unsuback(context, mid, reason_code_count, reason_codes, NULL);
mosquitto__free(reason_codes);
return rc;
}
int bridge__connect(struct mosquitto_db *db, struct mosquitto *context)
{
int rc, rc2;
int i;
char *notification_topic;
int notification_topic_len;
uint8_t notification_payload;
if(!context || !context->bridge) return MOSQ_ERR_INVAL;
context->state = mosq_cs_new;
context->sock = INVALID_SOCKET;
context->last_msg_in = mosquitto_time();
context->next_msg_out = mosquitto_time() + context->bridge->keepalive;
context->keepalive = context->bridge->keepalive;
context->clean_session = context->bridge->clean_session;
context->in_packet.payload = NULL;
context->ping_t = 0;
context->bridge->lazy_reconnect = false;
bridge__packet_cleanup(context);
db__message_reconnect_reset(db, context);
if(context->clean_session){
db__messages_delete(db, context);
}
/* Delete all local subscriptions even for clean_session==false. We don't
* remove any messages and the next loop carries out the resubscription
* anyway. This means any unwanted subs will be removed.
*/
sub__clean_session(db, context);
for(i=0; i<context->bridge->topic_count; i++){
if(context->bridge->topics[i].direction == bd_out || context->bridge->topics[i].direction == bd_both){
log__printf(NULL, MOSQ_LOG_DEBUG, "Bridge %s doing local SUBSCRIBE on topic %s", context->id, context->bridge->topics[i].local_topic);
if(sub__add(db, context, context->bridge->topics[i].local_topic, context->bridge->topics[i].qos, &db->subs)) return 1;
}
}
if(context->bridge->notifications){
if(context->bridge->notification_topic){
if(!context->bridge->initial_notification_done){
notification_payload = '0';
db__messages_easy_queue(db, context, context->bridge->notification_topic, 1, 1, ¬ification_payload, 1);
context->bridge->initial_notification_done = true;
}
if (!context->bridge->notifications_local_only) {
notification_payload = '0';
rc = will__set(context, context->bridge->notification_topic, 1, ¬ification_payload, 1, true);
if(rc != MOSQ_ERR_SUCCESS){
return rc;
}
}
}else{
notification_topic_len = strlen(context->bridge->remote_clientid)+strlen("$SYS/broker/connection//state");
notification_topic = mosquitto__malloc(sizeof(char)*(notification_topic_len+1));
if(!notification_topic) return MOSQ_ERR_NOMEM;
snprintf(notification_topic, notification_topic_len+1, "$SYS/broker/connection/%s/state", context->bridge->remote_clientid);
if(!context->bridge->initial_notification_done){
notification_payload = '0';
db__messages_easy_queue(db, context, notification_topic, 1, 1, ¬ification_payload, 1);
context->bridge->initial_notification_done = true;
}
if (!context->bridge->notifications_local_only) {
notification_payload = '0';
rc = will__set(context, notification_topic, 1, ¬ification_payload, 1, true);
mosquitto__free(notification_topic);
if(rc != MOSQ_ERR_SUCCESS){
return rc;
}
}
}
}
log__printf(NULL, MOSQ_LOG_NOTICE, "Connecting bridge %s (%s:%d)", context->bridge->name, context->bridge->addresses[context->bridge->cur_address].address, context->bridge->addresses[context->bridge->cur_address].port);
rc = net__socket_connect(context, context->bridge->addresses[context->bridge->cur_address].address, context->bridge->addresses[context->bridge->cur_address].port, NULL, false);
if(rc > 0){
if(rc == MOSQ_ERR_TLS){
net__socket_close(db, context);
return rc; /* Error already printed */
}else if(rc == MOSQ_ERR_ERRNO){
log__printf(NULL, MOSQ_LOG_ERR, "Error creating bridge: %s.", strerror(errno));
}else if(rc == MOSQ_ERR_EAI){
log__printf(NULL, MOSQ_LOG_ERR, "Error creating bridge: %s.", gai_strerror(errno));
}
return rc;
}else if(rc == MOSQ_ERR_CONN_PENDING){
context->state = mosq_cs_connect_pending;
}
HASH_ADD(hh_sock, db->contexts_by_sock, sock, sizeof(context->sock), context);
rc2 = send__connect(context, context->keepalive, context->clean_session);
if(rc2 == MOSQ_ERR_SUCCESS){
return rc;
}else if(rc2 == MOSQ_ERR_ERRNO && errno == ENOTCONN){
return MOSQ_ERR_SUCCESS;
}else{
if(rc2 == MOSQ_ERR_TLS){
return rc2; /* Error already printed */
}else if(rc2 == MOSQ_ERR_ERRNO){
log__printf(NULL, MOSQ_LOG_ERR, "Error creating bridge: %s.", strerror(errno));
}else if(rc2 == MOSQ_ERR_EAI){
log__printf(NULL, MOSQ_LOG_ERR, "Error creating bridge: %s.", gai_strerror(errno));
}
net__socket_close(db, context);
return rc2;
}
}
int persist__chunk_message_store_write_v5(FILE *db_fptr, struct P_msg_store *chunk)
{
struct PF_header header;
uint32_t payloadlen = chunk->F.payloadlen;
uint16_t source_id_len = chunk->F.source_id_len;
uint16_t source_username_len = chunk->F.source_username_len;
uint16_t topic_len = chunk->F.topic_len;
uint32_t proplen = 0;
struct mosquitto__packet prop_packet;
int rc;
memset(&prop_packet, 0, sizeof(struct mosquitto__packet));
if(chunk->properties){
proplen = property__get_length_all(chunk->properties);
proplen += packet__varint_bytes(proplen);
}
chunk->F.payloadlen = htonl(chunk->F.payloadlen);
chunk->F.source_mid = htons(chunk->F.source_mid);
chunk->F.source_id_len = htons(chunk->F.source_id_len);
chunk->F.source_username_len = htons(chunk->F.source_username_len);
chunk->F.topic_len = htons(chunk->F.topic_len);
chunk->F.source_port = htons(chunk->F.source_port);
header.chunk = htonl(DB_CHUNK_MSG_STORE);
header.length = htonl(sizeof(struct PF_msg_store) +
topic_len + payloadlen +
source_id_len + source_username_len + proplen);
write_e(db_fptr, &header, sizeof(struct PF_header));
write_e(db_fptr, &chunk->F, sizeof(struct PF_msg_store));
if(source_id_len){
write_e(db_fptr, chunk->source.id, source_id_len);
}
if(source_username_len){
write_e(db_fptr, chunk->source.username, source_username_len);
}
write_e(db_fptr, chunk->topic, topic_len);
if(payloadlen){
write_e(db_fptr, UHPA_ACCESS(chunk->payload, payloadlen), (unsigned int)payloadlen);
}
if(chunk->properties){
if(proplen > 0){
prop_packet.remaining_length = proplen;
prop_packet.packet_length = proplen;
prop_packet.payload = mosquitto__malloc(proplen);
if(!prop_packet.payload){
return MOSQ_ERR_NOMEM;
}
rc = property__write_all(&prop_packet, chunk->properties, true);
if(rc) return rc;
write_e(db_fptr, prop_packet.payload, proplen);
mosquitto__free(prop_packet.payload);
}
}
return MOSQ_ERR_SUCCESS;
error:
log__printf(NULL, MOSQ_LOG_ERR, "Error: %s.", strerror(errno));
mosquitto__free(prop_packet.payload);
return 1;
}
int log__vprintf(int priority, const char *fmt, va_list va)
{
char *s;
char *st;
int len;
#ifdef WIN32
char *sp;
#endif
const char *topic;
int syslog_priority;
time_t now = time(NULL);
static time_t last_flush = 0;
if((log_priorities & priority) && log_destinations != MQTT3_LOG_NONE){
switch(priority){
case MOSQ_LOG_SUBSCRIBE:
topic = "$SYS/broker/log/M/subscribe";
#ifndef WIN32
syslog_priority = LOG_NOTICE;
#else
syslog_priority = EVENTLOG_INFORMATION_TYPE;
#endif
break;
case MOSQ_LOG_UNSUBSCRIBE:
topic = "$SYS/broker/log/M/unsubscribe";
#ifndef WIN32
syslog_priority = LOG_NOTICE;
#else
syslog_priority = EVENTLOG_INFORMATION_TYPE;
#endif
break;
case MOSQ_LOG_DEBUG:
topic = "$SYS/broker/log/D";
#ifndef WIN32
syslog_priority = LOG_DEBUG;
#else
syslog_priority = EVENTLOG_INFORMATION_TYPE;
#endif
break;
case MOSQ_LOG_ERR:
topic = "$SYS/broker/log/E";
#ifndef WIN32
syslog_priority = LOG_ERR;
#else
syslog_priority = EVENTLOG_ERROR_TYPE;
#endif
break;
case MOSQ_LOG_WARNING:
topic = "$SYS/broker/log/W";
#ifndef WIN32
syslog_priority = LOG_WARNING;
#else
syslog_priority = EVENTLOG_WARNING_TYPE;
#endif
break;
case MOSQ_LOG_NOTICE:
topic = "$SYS/broker/log/N";
#ifndef WIN32
syslog_priority = LOG_NOTICE;
#else
syslog_priority = EVENTLOG_INFORMATION_TYPE;
#endif
break;
case MOSQ_LOG_INFO:
topic = "$SYS/broker/log/I";
#ifndef WIN32
syslog_priority = LOG_INFO;
#else
syslog_priority = EVENTLOG_INFORMATION_TYPE;
#endif
break;
#ifdef WITH_WEBSOCKETS
case MOSQ_LOG_WEBSOCKETS:
topic = "$SYS/broker/log/WS";
#ifndef WIN32
syslog_priority = LOG_DEBUG;
#else
syslog_priority = EVENTLOG_INFORMATION_TYPE;
#endif
break;
#endif
default:
topic = "$SYS/broker/log/E";
#ifndef WIN32
syslog_priority = LOG_ERR;
#else
syslog_priority = EVENTLOG_ERROR_TYPE;
#endif
}
len = strlen(fmt) + 500;
s = mosquitto__malloc(len*sizeof(char));
if(!s) return MOSQ_ERR_NOMEM;
vsnprintf(s, len, fmt, va);
s[len-1] = '\0'; /* Ensure string is null terminated. */
if(log_destinations & MQTT3_LOG_STDOUT){
if(int_db.config && int_db.config->log_timestamp){
fprintf(stdout, "%d: %s\n", (int)now, s);
}else{
fprintf(stdout, "%s\n", s);
}
fflush(stdout);
}
if(log_destinations & MQTT3_LOG_STDERR){
if(int_db.config && int_db.config->log_timestamp){
fprintf(stderr, "%d: %s\n", (int)now, s);
}else{
fprintf(stderr, "%s\n", s);
}
fflush(stderr);
}
if(log_destinations & MQTT3_LOG_FILE && int_db.config->log_fptr){
if(int_db.config && int_db.config->log_timestamp){
fprintf(int_db.config->log_fptr, "%d: %s\n", (int)now, s);
}else{
fprintf(int_db.config->log_fptr, "%s\n", s);
}
if(now - last_flush > 1){
fflush(int_db.config->log_fptr);
last_flush = now;
}
}
if(log_destinations & MQTT3_LOG_SYSLOG){
#ifndef WIN32
syslog(syslog_priority, "%s", s);
#else
sp = (char *)s;
ReportEvent(syslog_h, syslog_priority, 0, 0, NULL, 1, 0, &sp, NULL);
#endif
}
if(log_destinations & MQTT3_LOG_TOPIC && priority != MOSQ_LOG_DEBUG){
if(int_db.config && int_db.config->log_timestamp){
len += 30;
st = mosquitto__malloc(len*sizeof(char));
if(!st){
mosquitto__free(s);
return MOSQ_ERR_NOMEM;
}
snprintf(st, len, "%d: %s", (int)now, s);
db__messages_easy_queue(&int_db, NULL, topic, 2, strlen(st), st, 0);
mosquitto__free(st);
}else{
db__messages_easy_queue(&int_db, NULL, topic, 2, strlen(s), s, 0);
}
}
mosquitto__free(s);
}
return MOSQ_ERR_SUCCESS;
}
