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Merge pull request #606 from david-cermak/feat/mosquitto

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[mosq]: Support for TCP listener mode of mosquitto broker on ESP32
This commit is contained in:
david-cermak
2024-09-17 10:05:08 +02:00
committed by GitHub
parent 2208e76e04 e2392c36fe
commit 6705bcae5e
35 changed files with 1479 additions and 1 deletions
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72
.github/workflows/mosq__build.yml vendored Normal file
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name: "mosq: build-tests"
on:
push:
branches:
- master
pull_request:
types: [opened, synchronize, reopened, labeled]
jobs:
build_mosq:
if: contains(github.event.pull_request.labels.*.name, 'mosquitto') || github.event_name == 'push'
name: Mosquitto build
strategy:
matrix:
idf_ver: ["latest", "release-v5.3"]
runs-on: ubuntu-22.04
container: espressif/idf:${{ matrix.idf_ver }}
env:
TEST_DIR: components/mosquitto/examples/broker
TARGET_TEST_DIR: build_esp32_default
steps:
- name: Checkout esp-protocols
uses: actions/checkout@v4
with:
submodules: recursive
- name: Build with IDF-${{ matrix.idf_ver }}
shell: bash
run: |
. ${IDF_PATH}/export.sh
pip install idf-component-manager idf-build-apps --upgrade
python ci/build_apps.py ${TEST_DIR}
cd ${TEST_DIR}
${GITHUB_WORKSPACE}/ci/clean_build_artifacts.sh `pwd`/${TARGET_TEST_DIR}
zip -qur artifacts.zip ${TARGET_TEST_DIR}
- uses: actions/upload-artifact@v4
with:
name: mosq_target_esp32_${{ matrix.idf_ver }}
path: ${{ env.TEST_DIR }}/artifacts.zip
if-no-files-found: error
test_mosq:
# Skip running on forks since it won't have access to secrets
if: |
github.repository == 'espressif/esp-protocols' &&
( contains(github.event.pull_request.labels.*.name, 'mosquitto') || github.event_name == 'push' )
name: Mosquitto target test
needs: build_mosq
strategy:
matrix:
idf_ver: ["latest", "release-v5.3"]
runs-on:
- self-hosted
- ESP32-ETHERNET-KIT
env:
TEST_DIR: components/mosquitto/examples/broker
TARGET_TEST_DIR: build_esp32_default
steps:
- uses: actions/checkout@v4
- uses: actions/download-artifact@v4
with:
name: mosq_target_esp32_${{ matrix.idf_ver }}
path: ${{ env.TEST_DIR }}/ci/
- name: Run Test
working-directory: ${{ env.TEST_DIR }}
run: |
unzip ci/artifacts.zip -d ci
for dir in `ls -d ci/build_*`; do
rm -rf build sdkconfig.defaults
mv $dir build
python -m pytest --log-cli-level DEBUG --junit-xml=./results_esp32_${{ matrix.idf_ver }}_${dir#"ci/build_"}.xml --target=esp32
done

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.gitmodules vendored
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[submodule "components/asio/asio"]
path = components/asio/asio
url = https://github.com/espressif/asio
[submodule "components/mosq/mosquitto"]
path = components/mosquitto/mosquitto
url = https://github.com/eclipse/mosquitto

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.pre-commit-config.yaml
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@ -62,7 +62,7 @@ repos:
hooks:
- id: commit message scopes
name: "commit message must be scoped with: mdns, modem, websocket, asio, mqtt_cxx, console, common, eppp, wifi_remote, tls_cxx"
entry: '\A(?!(feat|fix|ci|bump|test|docs)\((mdns|modem|common|console|websocket|asio|mqtt_cxx|examples|eppp|wifi_remote|tls_cxx)\)\:)'
entry: '\A(?!(feat|fix|ci|bump|test|docs)\((mdns|modem|common|console|websocket|asio|mqtt_cxx|examples|eppp|wifi_remote|tls_cxx|mosq)\)\:)'
language: pygrep
args: [--multiline]
stages: [commit-msg]

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ci/check_copyright_config.yaml
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@ -47,6 +47,13 @@ asio_component:
- Apache-2.0
- BSL-1.0
mosquitto_component:
include:
- 'components/mosquitto/port/**'
allowed_licenses:
- EPL-2.0
- Apache-2.0
slim_modem_examples:
include:
- 'examples/esp_netif/slip_custom_netif/**'

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components/mosquitto/.cz.yaml Normal file
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commitizen:
bump_message: 'bump(mosq): $current_version -> $new_version'
pre_bump_hooks: python ../../ci/changelog.py mosq
tag_format: mosq-v$version
version: 2.0.27
version_files:
- idf_component.yml

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set(m_dir mosquitto)
set(m_src_dir ${m_dir}/src)
set(m_incl_dir ${m_dir}/include)
set(m_lib_dir ${m_dir}/lib)
set(m_deps_dir ${m_dir}/deps)
set(m_srcs
${m_lib_dir}/memory_mosq.c
${m_lib_dir}/util_mosq.c
${m_lib_dir}/net_mosq.c
${m_lib_dir}/will_mosq.c
${m_lib_dir}/alias_mosq.c
${m_lib_dir}/send_mosq.c
${m_lib_dir}/strings_mosq.c
${m_lib_dir}/packet_mosq.c
${m_lib_dir}/packet_datatypes.c
${m_lib_dir}/property_mosq.c
${m_lib_dir}/util_topic.c
${m_lib_dir}/send_publish.c
${m_lib_dir}/send_disconnect.c
${m_lib_dir}/handle_pubackcomp.c
${m_lib_dir}/handle_pubrec.c
${m_lib_dir}/handle_pubrel.c
${m_lib_dir}/handle_ping.c
${m_lib_dir}/time_mosq.c
${m_lib_dir}/utf8_mosq.c
${m_src_dir}/bridge.c
${m_src_dir}/bridge_topic.c
${m_src_dir}/conf_includedir.c
${m_src_dir}/context.c
${m_src_dir}/control.c
${m_src_dir}/database.c
${m_src_dir}/handle_auth.c
${m_src_dir}/handle_connack.c
${m_src_dir}/handle_connect.c
${m_src_dir}/handle_disconnect.c
${m_src_dir}/handle_publish.c
${m_src_dir}/handle_subscribe.c
${m_src_dir}/handle_unsubscribe.c
${m_src_dir}/keepalive.c
${m_src_dir}/logging.c
${m_src_dir}/loop.c
${m_src_dir}/memory_public.c
${m_src_dir}/mosquitto.c
${m_src_dir}/mux.c
${m_src_dir}/mux_epoll.c
${m_src_dir}/mux_poll.c
${m_src_dir}/net.c
${m_src_dir}/password_mosq.c
${m_src_dir}/persist_read.c
${m_src_dir}/persist_read_v234.c
${m_src_dir}/persist_read_v5.c
${m_src_dir}/persist_write.c
${m_src_dir}/persist_write_v5.c
${m_src_dir}/property_broker.c
${m_src_dir}/read_handle.c
${m_src_dir}/retain.c
${m_src_dir}/security.c
${m_src_dir}/security_default.c
${m_src_dir}/send_auth.c
${m_src_dir}/send_connack.c
${m_src_dir}/send_suback.c
${m_src_dir}/send_unsuback.c
${m_src_dir}/service.c
${m_src_dir}/session_expiry.c
${m_src_dir}/signals.c
${m_src_dir}/subs.c
${m_src_dir}/sys_tree.c
${m_src_dir}/topic_tok.c
${m_src_dir}/websockets.c
${m_src_dir}/will_delay.c
${m_src_dir}/xtreport.c)
idf_component_register(SRCS ${m_srcs}
port/callbacks.c port/config.c port/signals.c port/ifaddrs.c port/broker.c port/files.c
PRIV_INCLUDE_DIRS port/priv_include port/priv_include/sys ${m_dir} ${m_src_dir}
${m_incl_dir} ${m_lib_dir} ${m_deps_dir}
INCLUDE_DIRS ${m_incl_dir} port/include
PRIV_REQUIRES newlib
)
target_compile_definitions(${COMPONENT_LIB} PRIVATE "WITH_BROKER")
target_compile_options(${COMPONENT_LIB} PRIVATE "-Wno-format")
# Some mosquittos source unconditionally define `_GNU_SOURCE` which collides with IDF build system
# producing warning: "_GNU_SOURCE" redefined
# This workarounds this issue by undefining the macro for the selected files
set(sources_that_define_gnu_source ${m_lib_dir}/net_mosq.c ${m_src_dir}/loop.c ${m_src_dir}/mux_poll.c)
foreach(offending_src ${sources_that_define_gnu_source})
set_source_files_properties(${offending_src} PROPERTIES COMPILE_OPTIONS "-U_GNU_SOURCE")
endforeach()

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components/mosquitto/Doxyfile Normal file
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# Set this to the include directory of your component
INPUT = port/include
STRIP_FROM_PATH = ./port/include
# Output goes into doxygen directory, which is added to gitignore
OUTPUT_DIRECTORY = doxygen
# Warning-related settings, it's recommended to keep them enabled
WARN_AS_ERROR = YES
# Other common settings
RECURSIVE = YES
FULL_PATH_NAMES = YES
ENABLE_PREPROCESSING = YES
MACRO_EXPANSION = YES
EXPAND_ONLY_PREDEF = YES
PREDEFINED = $(ENV_DOXYGEN_DEFINES)
HAVE_DOT = NO
GENERATE_XML = YES
XML_OUTPUT = xml
GENERATE_HTML = NO
HAVE_DOT = NO
GENERATE_LATEX = NO
QUIET = YES
MARKDOWN_SUPPORT = YES

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This project is dual licensed under the Eclipse Public License 2.0 and the
Eclipse Distribution License 1.0 as described in the epl-v20 and edl-v10 files.

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# ESP32 Mosquitto Port
This is a lightweight port of the Mosquitto broker designed to run on the ESP32. It currently supports a single listener and TCP transport only.
## Supported Options
The Espressif port supports a limited set of options (with plans to add more in future releases). These options can be configured through a structure passed to the `mosq_broker_start()` function. For detailed information on available configuration options, refer to the [API documentation](api.md).
## API
### Starting the Broker
To start the broker, call the `mosq_broker_start()` function with a properly configured settings structure. The broker operates in the context of the calling task and does not create a separate task.
It's recommended to analyze the stack size needed for the task, but in general, the broker requires at least 4 kB of stack size.
```c
mosq_broker_start(&config);
```
## Memory Footprint Considerations
The broker primarily uses the heap for internal data, with minimal use of static/BSS memory. It consumes approximately 60 kB of program memory.
- **Initial Memory Usage**: ~2 kB of heap on startup
- **Per Client Memory Usage**: ~4 kB of heap for each connected client
When using the broker with multiple clients, ensure sufficient heap space is available to handle scenarios where clients disconnect abruptly and reconnect. In cases of clean disconnections, the broker releases the memory immediately. However, when a client loses connection abruptly, the broker retains its connection information for some time before eventually freeing this memory. If the client reconnects during this period, an additional 4 kB of heap is allocated for the new connection while the memory for the previous connection is still being retained. Therefore, extra heap space is necessary to manage these abrupt reconnections smoothly.
## Testing
Extensive long-term tests have been conducted with the broker handling 5 clients simultaneously. Each client publishes messages every second to a different topic, while all clients subscribe to all topics. The test also included abrupt disconnections, where clients were suspended and reconnected after 10 seconds, to simulate real-world network instability.

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# API Reference
## Header files
- [mosq_broker.h](#file-mosq_brokerh)
## File mosq_broker.h
## Structures and Types
| Type | Name |
| ---: | :--- |
| struct | [**mosq\_broker\_config**](#struct-mosq_broker_config) <br>_Mosquitto configuration structure._ |
## Functions
| Type | Name |
| ---: | :--- |
| int | [**mosq\_broker\_start**](#function-mosq_broker_start) (struct [**mosq\_broker\_config**](#struct-mosq_broker_config) \*config) <br>_Start mosquitto broker._ |
## Structures and Types Documentation
### struct `mosq_broker_config`
_Mosquitto configuration structure._
ESP port of mosquittto supports only the options in this configuration structure.
Variables:
- char \* host <br>Address on which the broker is listening for connections
- int port <br>Port number of the broker to listen to
## Functions Documentation
### function `mosq_broker_start`
_Start mosquitto broker._
```c
int mosq_broker_start (
struct mosq_broker_config *config
)
```
This API runs the broker in the calling thread and blocks until the mosquitto exits.
**Parameters:**
* `config` Mosquitto configuration structure
**Returns:**
int Exit code (0 on success)

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components/mosquitto/edl-v10 Normal file
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Eclipse Distribution License - v 1.0
Copyright (c) 2007, Eclipse Foundation, Inc. and its licensors.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
Neither the name of the Eclipse Foundation, Inc. nor the names of its
contributors may be used to endorse or promote products derived from this
software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

277
components/mosquitto/epl-v20 Normal file
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@ -0,0 +1,277 @@
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# The following five lines of boilerplate have to be in your project's
# CMakeLists in this exact order for cmake to work correctly
cmake_minimum_required(VERSION 3.16)
include($ENV{IDF_PATH}/tools/cmake/project.cmake)
project(broker)

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# MQTT broker example
## Overview
This example runs a TCP broker on a specified host and port.
### How to use this example
Choose the preferred connection in the project configuration menu, build and run the example.
After it connects via the specified network interface, it starts the mosquitto broker, which by default listens on all IPv4 interfaces ("0.0.0.0").
If you enabled also the mqtt client, this example will connect to the local broker, subscribe and publish to a topic.
You can connect to the ESP32 mosquitto broker using some other client using the ESP32 IPv4 address and the port specified in the project configuration menu.
### Test version
This example is also used for testing on loopback interface only, disabling any actual connection, just using the local mqtt client to the loopback interface.
### Example output
```console
I (477) main_task: Calling app_main()
0: mosquitto version 0.1.0 starting
0: Using default config.
0: Opening ipv4 listen socket on port 1883.
0: mosquitto version 0.1.0 running
I (1507) test: Other event id:7
1: New connection from 127.0.0.1:56424 on port 1883.
1: New client connected from 127.0.0.1:56424 as ESP32_d58788 (p2, c1, k120).
I (1528) mqtt_broker: MQTT_EVENT_CONNECTED
I (1528) mqtt_broker: sent subscribe successful, msg_id=54859
I (1538) mqtt_broker: MQTT_EVENT_SUBSCRIBED, msg_id=54859
I (1538) mqtt_broker: sent publish successful, msg_id=0
I (1548) mqtt_broker: MQTT_EVENT_DATA
I (1548) mqtt_broker: TOPIC=/topic/qos0
I (1548) mqtt_broker: DATA=data
```

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idf_component_register(SRCS "broker.c"
PRIV_REQUIRES newlib nvs_flash esp_netif esp_event mqtt)

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menu "Example Configuration"
config EXAMPLE_BROKER_HOST
string "Broker host address"
default "0.0.0.0"
help
Host name of the endpoint to bind the mosquitto listener.
config EXAMPLE_BROKER_PORT
int "Broker port"
default 1883
help
Port of the endpoint to bind the mosquitto listener
config EXAMPLE_BROKER_RUN_LOCAL_MQTT_CLIENT
bool "Run a local mqtt client"
default y
help
If enabled, it runs a local mqtt client connecting
to the same endpoint ans the broker listens to
endmenu

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/*
* SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Unlicense OR CC0-1.0
*/
#include <stdio.h>
#include "nvs_flash.h"
#include "esp_event.h"
#include "esp_netif.h"
#include "mqtt_client.h"
#include "esp_log.h"
#include "mosq_broker.h"
#include "protocol_examples_common.h"
const static char *TAG = "mqtt_broker";
#if CONFIG_EXAMPLE_BROKER_RUN_LOCAL_MQTT_CLIENT
static void mqtt_event_handler(void *handler_args, esp_event_base_t base, int32_t event_id, void *event_data)
{
ESP_LOGD(TAG, "Event dispatched from event loop base=%s, event_id=%" PRIi32 "", base, event_id);
esp_mqtt_event_handle_t event = event_data;
esp_mqtt_client_handle_t client = event->client;
int msg_id;
switch ((esp_mqtt_event_id_t)event_id) {
case MQTT_EVENT_BEFORE_CONNECT:
ESP_LOGI(TAG, "MQTT_EVENT_BEFORE_CONNECT");
vTaskDelay(pdMS_TO_TICKS(1000)); // wait a second for the broker to start
break;
case MQTT_EVENT_CONNECTED:
ESP_LOGI(TAG, "MQTT_EVENT_CONNECTED");
msg_id = esp_mqtt_client_subscribe(client, "/topic/qos0", 0);
ESP_LOGI(TAG, "sent subscribe successful, msg_id=%d", msg_id);
break;
case MQTT_EVENT_DISCONNECTED:
ESP_LOGI(TAG, "MQTT_EVENT_DISCONNECTED");
break;
case MQTT_EVENT_SUBSCRIBED:
ESP_LOGI(TAG, "MQTT_EVENT_SUBSCRIBED, msg_id=%d", event->msg_id);
msg_id = esp_mqtt_client_publish(client, "/topic/qos0", "data", 0, 0, 0);
ESP_LOGI(TAG, "sent publish successful, msg_id=%d", msg_id);
break;
case MQTT_EVENT_UNSUBSCRIBED:
ESP_LOGI(TAG, "MQTT_EVENT_UNSUBSCRIBED, msg_id=%d", event->msg_id);
break;
case MQTT_EVENT_PUBLISHED:
ESP_LOGI(TAG, "MQTT_EVENT_PUBLISHED, msg_id=%d", event->msg_id);
break;
case MQTT_EVENT_DATA:
ESP_LOGI(TAG, "MQTT_EVENT_DATA");
ESP_LOGI(TAG, "TOPIC=%.*s", event->topic_len, event->topic);
ESP_LOGI(TAG, "DATA=%.*s", event->data_len, event->data);
break;
case MQTT_EVENT_ERROR:
ESP_LOGI(TAG, "MQTT_EVENT_ERROR");
break;
default:
ESP_LOGI(TAG, "Other event id:%d", event->event_id);
break;
}
}
static void mqtt_app_start(struct mosq_broker_config *config)
{
esp_mqtt_client_config_t mqtt_cfg = {
.broker.address.hostname = "127.0.0.1",
.broker.address.transport = MQTT_TRANSPORT_OVER_TCP, // we support only TCP transport now
.broker.address.port = config->port,
};
esp_mqtt_client_handle_t client = esp_mqtt_client_init(&mqtt_cfg);
esp_mqtt_client_register_event(client, ESP_EVENT_ANY_ID, mqtt_event_handler, NULL);
esp_mqtt_client_start(client);
}
#endif // CONFIG_EXAMPLE_BROKER_RUN_LOCAL_MQTT_CLIENT
void app_main(void)
{
ESP_ERROR_CHECK(nvs_flash_init());
ESP_ERROR_CHECK(esp_netif_init());
ESP_ERROR_CHECK(esp_event_loop_create_default());
ESP_ERROR_CHECK(example_connect());
struct mosq_broker_config config = { .host = CONFIG_EXAMPLE_BROKER_HOST, .port = CONFIG_EXAMPLE_BROKER_PORT };
#if CONFIG_EXAMPLE_BROKER_RUN_LOCAL_MQTT_CLIENT
mqtt_app_start(&config);
#endif
// broker continues to run in this task
mosq_broker_start(&config);
}

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dependencies:
espressif/mosquitto:
version: "*"
override_path: "../../.."
protocol_examples_common:
path: ${IDF_PATH}/examples/common_components/protocol_examples_common

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# SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
# SPDX-License-Identifier: Unlicense OR CC0-1.0
def test_mosq_local(dut):
"""
steps:
1. Start mosquitto broker
2. Start mqtt client
3. Checks that the client connected to broker
4. checks that the client received published data
"""
# We expect the client to connect from IPv4 localhost address
dut.expect('New client connected from 127.0.0.1')
# We expect the client to get "connected" event and receive the published data
dut.expect('MQTT_EVENT_CONNECTED')
dut.expect('MQTT_EVENT_DATA')
dut.expect('TOPIC=/topic/qos0')
dut.expect('DATA=data')

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CONFIG_EXAMPLE_CONNECT_WIFI=n
CONFIG_EXAMPLE_CONNECT_ETHERNET=n
CONFIG_EXAMPLE_BROKER_RUN_LOCAL_MQTT_CLIENT=y

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#!/usr/bin/env bash
doxygen Doxyfile
esp-doxybook -i doxygen/xml -o ./api.md

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version: "2.0.28~0"
url: https://github.com/espressif/esp-protocols/tree/master/components/mosq
description: The component provides a simple ESP32 port of mosquitto broker
dependencies:
idf: '>=5.1'

1
components/mosquitto/mosquitto Submodule

Submodule components/mosquitto/mosquitto added at 3923526c6b

199
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/*
* SPDX-FileCopyrightText: 2024 Roger Light <roger@atchoo.org>
*
* SPDX-License-Identifier: EPL-2.0
*
* SPDX-FileContributor: 2024 Espressif Systems (Shanghai) CO LTD
*/
#include "mosquitto.h"
#include "mosquitto_broker_internal.h"
#include "memory_mosq.h"
#include "mosq_broker.h"
static struct mosquitto__listener_sock *listensock = NULL;
static int listensock_count = 0;
static int listensock_index = 0;
extern int run;
static int listeners__start_single_mqtt(struct mosquitto__listener *listener)
{
int i;
struct mosquitto__listener_sock *listensock_new;
if (net__socket_listen(listener)) {
return 1;
}
listensock_count += listener->sock_count;
listensock_new = mosquitto__realloc(listensock, sizeof(struct mosquitto__listener_sock) * (size_t)listensock_count);
if (!listensock_new) {
return 1;
}
listensock = listensock_new;
for (i = 0; i < listener->sock_count; i++) {
if (listener->socks[i] == INVALID_SOCKET) {
return 1;
}
listensock[listensock_index].sock = listener->socks[i];
listensock[listensock_index].listener = listener;
#ifdef WITH_EPOLL
listensock[listensock_index].ident = id_listener;
#endif
listensock_index++;
}
return MOSQ_ERR_SUCCESS;
}
static int listeners__add_local(const char *host, uint16_t port)
{
struct mosquitto__listener *listeners;
listeners = mosquitto__realloc(db.config->listeners, sizeof(struct mosquitto__listener));
if (listeners == NULL) {
return MOSQ_ERR_NOMEM;
}
memset(listeners, 0, sizeof(struct mosquitto__listener));
db.config->listener_count = 0;
db.config->listeners = listeners;
listeners = db.config->listeners;
listener__set_defaults(&listeners[db.config->listener_count]);
listeners[db.config->listener_count].security_options.allow_anonymous = true;
listeners[db.config->listener_count].port = port;
listeners[db.config->listener_count].host = mosquitto__strdup(host);
if (listeners[db.config->listener_count].host == NULL) {
return MOSQ_ERR_NOMEM;
}
if (listeners__start_single_mqtt(&listeners[db.config->listener_count])) {
mosquitto__free(listeners[db.config->listener_count].host);
listeners[db.config->listener_count].host = NULL;
return MOSQ_ERR_UNKNOWN;
}
db.config->listener_count++;
return MOSQ_ERR_SUCCESS;
}
static void listeners__stop(void)
{
int i;
for (i = 0; i < db.config->listener_count; i++) {
#ifdef WITH_WEBSOCKETS
if (db.config->listeners[i].ws_context) {
lws_context_destroy(db.config->listeners[i].ws_context);
}
mosquitto__free(db.config->listeners[i].ws_protocol);
#endif
}
for (i = 0; i < listensock_count; i++) {
if (listensock[i].sock != INVALID_SOCKET) {
COMPAT_CLOSE(listensock[i].sock);
}
}
mosquitto__free(listensock);
}
int mosq_broker_start(struct mosq_broker_config *broker_config)
{
struct mosquitto__config config;
#ifdef WITH_BRIDGE
int i;
#endif
int rc;
struct timeval tv;
struct mosquitto *ctxt, *ctxt_tmp;
gettimeofday(&tv, NULL);
memset(&db, 0, sizeof(struct mosquitto_db));
db.now_s = mosquitto_time();
db.now_real_s = time(NULL);
net__broker_init();
config__init(&config);
db.config = &config;
rc = db__open(&config);
if (rc != MOSQ_ERR_SUCCESS) {
log__printf(NULL, MOSQ_LOG_ERR, "Error: Couldn't open database.");
return rc;
}
if (log__init(&config)) {
rc = 1;
return rc;
}
log__printf(NULL, MOSQ_LOG_INFO, "mosquitto version %s starting", VERSION);
if (db.config_file) {
log__printf(NULL, MOSQ_LOG_INFO, "Config loaded from %s.", db.config_file);
} else {
log__printf(NULL, MOSQ_LOG_INFO, "Using default config.");
}
if (listeners__add_local(broker_config->host, broker_config->port)) {
return 1;
}
rc = mux__init(listensock, listensock_count);
if (rc) {
return rc;
}
#ifdef WITH_BRIDGE
bridge__start_all();
#endif
log__printf(NULL, MOSQ_LOG_INFO, "mosquitto version %s running", VERSION);
run = 1;
rc = mosquitto_main_loop(listensock, listensock_count);
log__printf(NULL, MOSQ_LOG_INFO, "mosquitto version %s terminating", VERSION);
HASH_ITER(hh_id, db.contexts_by_id, ctxt, ctxt_tmp) {
context__send_will(ctxt);
}
will_delay__send_all();
#ifdef WITH_PERSISTENCE
persist__backup(true);
#endif
session_expiry__remove_all();
listeners__stop();
HASH_ITER(hh_id, db.contexts_by_id, ctxt, ctxt_tmp) {
#ifdef WITH_WEBSOCKETS
if (!ctxt->wsi)
#endif
{
context__cleanup(ctxt, true);
}
}
HASH_ITER(hh_sock, db.contexts_by_sock, ctxt, ctxt_tmp) {
context__cleanup(ctxt, true);
}
#ifdef WITH_BRIDGE
for (i = 0; i < db.bridge_count; i++) {
if (db.bridges[i]) {
context__cleanup(db.bridges[i], true);
}
}
mosquitto__free(db.bridges);
#endif
context__free_disused();
db__close();
mosquitto_security_module_cleanup();
log__close(&config);
config__cleanup(db.config);
net__broker_cleanup();
return rc;
}

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/*
* SPDX-FileCopyrightText: 2024 Roger Light <roger@atchoo.org>
*
* SPDX-License-Identifier: EPL-2.0
*
* SPDX-FileContributor: 2024 Espressif Systems (Shanghai) CO LTD
*/
#include "mosquitto_internal.h"
#include "mosquitto_broker.h"
#include "memory_mosq.h"
#include "mqtt_protocol.h"
#include "send_mosq.h"
#include "util_mosq.h"
#include "utlist.h"
#include "lib_load.h"
int mosquitto_callback_register(
mosquitto_plugin_id_t *identifier,
int event,
MOSQ_FUNC_generic_callback cb_func,
const void *event_data,
void *userdata)
{
return MOSQ_ERR_INVAL;
}
int mosquitto_callback_unregister(
mosquitto_plugin_id_t *identifier,
int event,
MOSQ_FUNC_generic_callback cb_func,
const void *event_data)
{
return MOSQ_ERR_INVAL;
}
void plugin__handle_tick(void)
{
}
void plugin__handle_disconnect(struct mosquitto *context, int reason)
{
}
int plugin__handle_message(struct mosquitto *context, struct mosquitto_msg_store *stored)
{
return MOSQ_ERR_SUCCESS;
}

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/*
* SPDX-FileCopyrightText: 2024 Roger Light <roger@atchoo.org>
*
* SPDX-License-Identifier: EPL-2.0
*
* SPDX-FileContributor: 2024 Espressif Systems (Shanghai) CO LTD
*/
#include "mosquitto_internal.h"
#include "mosquitto_broker.h"
#include "memory_mosq.h"
#include "mqtt_protocol.h"
#include "send_mosq.h"
#include "util_mosq.h"
#include "utlist.h"
#include "lib_load.h"
#include "syslog.h"
void config__init(struct mosquitto__config *config)
{
memset(config, 0, sizeof(struct mosquitto__config));
for (int i = 0; i < config->listener_count; i++) {
mosquitto__free(config->listeners[i].security_options.acl_file);
config->listeners[i].security_options.acl_file = NULL;
mosquitto__free(config->listeners[i].security_options.password_file);
config->listeners[i].security_options.password_file = NULL;
mosquitto__free(config->listeners[i].security_options.psk_file);
config->listeners[i].security_options.psk_file = NULL;
config->listeners[i].security_options.allow_anonymous = -1;
config->listeners[i].security_options.allow_zero_length_clientid = true;
config->listeners[i].security_options.auto_id_prefix = NULL;
config->listeners[i].security_options.auto_id_prefix_len = 0;
}
config->local_only = true;
config->allow_duplicate_messages = false;
mosquitto__free(config->security_options.acl_file);
config->security_options.acl_file = NULL;
config->security_options.allow_anonymous = -1;
config->security_options.allow_zero_length_clientid = true;
config->security_options.auto_id_prefix = NULL;
config->security_options.auto_id_prefix_len = 0;
mosquitto__free(config->security_options.password_file);
config->security_options.password_file = NULL;
mosquitto__free(config->security_options.psk_file);
config->security_options.psk_file = NULL;
config->autosave_interval = 1800;
config->autosave_on_changes = false;
mosquitto__free(config->clientid_prefixes);
config->connection_messages = true;
config->clientid_prefixes = NULL;
config->per_listener_settings = false;
if (config->log_fptr) {
fclose(config->log_fptr);
config->log_fptr = NULL;
}
mosquitto__free(config->log_file);
config->log_file = NULL;
config->log_facility = LOG_DAEMON;
config->log_dest = MQTT3_LOG_STDERR | MQTT3_LOG_DLT;
if (db.verbose) {
config->log_type = UINT_MAX;
} else {
config->log_type = MOSQ_LOG_ERR | MOSQ_LOG_WARNING | MOSQ_LOG_NOTICE | MOSQ_LOG_INFO;
}
config->log_timestamp = true;
mosquitto__free(config->log_timestamp_format);
config->log_timestamp_format = NULL;
config->max_keepalive = 0;
config->max_packet_size = 0;
config->max_inflight_messages = 20;
config->max_queued_messages = 1000;
config->max_inflight_bytes = 0;
config->max_queued_bytes = 0;
config->persistence = false;
mosquitto__free(config->persistence_location);
config->persistence_location = NULL;
mosquitto__free(config->persistence_file);
config->persistence_file = NULL;
config->persistent_client_expiration = 0;
config->queue_qos0_messages = false;
config->retain_available = true;
config->set_tcp_nodelay = false;
config->sys_interval = 10;
config->upgrade_outgoing_qos = false;
config->daemon = false;
memset(&config->default_listener, 0, sizeof(struct mosquitto__listener));
listener__set_defaults(&config->default_listener);
}
int config__read(struct mosquitto__config *config, bool reload)
{
return MOSQ_ERR_SUCCESS;
}
void config__cleanup(struct mosquitto__config *config)
{
int i;
#ifdef WITH_BRIDGE
int j;
#endif
mosquitto__free(config->clientid_prefixes);
mosquitto__free(config->persistence_location);
mosquitto__free(config->persistence_file);
mosquitto__free(config->persistence_filepath);
mosquitto__free(config->security_options.auto_id_prefix);
mosquitto__free(config->security_options.acl_file);
mosquitto__free(config->security_options.password_file);
mosquitto__free(config->security_options.psk_file);
mosquitto__free(config->pid_file);
mosquitto__free(config->user);
mosquitto__free(config->log_timestamp_format);
if (config->listeners) {
for (i = 0; i < config->listener_count; i++) {
mosquitto__free(config->listeners[i].host);
mosquitto__free(config->listeners[i].bind_interface);
mosquitto__free(config->listeners[i].mount_point);
mosquitto__free(config->listeners[i].socks);
mosquitto__free(config->listeners[i].security_options.auto_id_prefix);
mosquitto__free(config->listeners[i].security_options.acl_file);
mosquitto__free(config->listeners[i].security_options.password_file);
mosquitto__free(config->listeners[i].security_options.psk_file);
#ifdef WITH_TLS
mosquitto__free(config->listeners[i].cafile);
mosquitto__free(config->listeners[i].capath);
mosquitto__free(config->listeners[i].certfile);
mosquitto__free(config->listeners[i].keyfile);
mosquitto__free(config->listeners[i].ciphers);
mosquitto__free(config->listeners[i].ciphers_tls13);
mosquitto__free(config->listeners[i].psk_hint);
mosquitto__free(config->listeners[i].crlfile);
mosquitto__free(config->listeners[i].dhparamfile);
mosquitto__free(config->listeners[i].tls_version);
mosquitto__free(config->listeners[i].tls_engine);
mosquitto__free(config->listeners[i].tls_engine_kpass_sha1);
#ifdef WITH_WEBSOCKETS
if (!config->listeners[i].ws_context) /* libwebsockets frees its own SSL_CTX */
#endif
{
SSL_CTX_free(config->listeners[i].ssl_ctx);
}
#endif
#ifdef WITH_WEBSOCKETS
mosquitto__free(config->listeners[i].http_dir);
#endif
}
mosquitto__free(config->listeners);
}
#ifdef WITH_BRIDGE
if (config->bridges) {
for (i = 0; i < config->bridge_count; i++) {
mosquitto__free(config->bridges[i].name);
if (config->bridges[i].addresses) {
for (j = 0; j < config->bridges[i].address_count; j++) {
mosquitto__free(config->bridges[i].addresses[j].address);
}
mosquitto__free(config->bridges[i].addresses);
}
mosquitto__free(config->bridges[i].remote_clientid);
mosquitto__free(config->bridges[i].remote_username);
mosquitto__free(config->bridges[i].remote_password);
mosquitto__free(config->bridges[i].local_clientid);
mosquitto__free(config->bridges[i].local_username);
mosquitto__free(config->bridges[i].local_password);
if (config->bridges[i].topics) {
for (j = 0; j < config->bridges[i].topic_count; j++) {
mosquitto__free(config->bridges[i].topics[j].topic);
mosquitto__free(config->bridges[i].topics[j].local_prefix);
mosquitto__free(config->bridges[i].topics[j].remote_prefix);
mosquitto__free(config->bridges[i].topics[j].local_topic);
mosquitto__free(config->bridges[i].topics[j].remote_topic);
}
mosquitto__free(config->bridges[i].topics);
}
mosquitto__free(config->bridges[i].notification_topic);
#ifdef WITH_TLS
mosquitto__free(config->bridges[i].tls_version);
mosquitto__free(config->bridges[i].tls_cafile);
mosquitto__free(config->bridges[i].tls_alpn);
#ifdef FINAL_WITH_TLS_PSK
mosquitto__free(config->bridges[i].tls_psk_identity);
mosquitto__free(config->bridges[i].tls_psk);
#endif
#endif
}
mosquitto__free(config->bridges);
}
#endif
if (config->log_fptr) {
fclose(config->log_fptr);
config->log_fptr = NULL;
}
if (config->log_file) {
mosquitto__free(config->log_file);
config->log_file = NULL;
}
}
const char *mosquitto_client_username(const struct mosquitto *client)
{
return client->id;
}
char *misc__trimblanks(char *str)
{
char *endptr;
if (str == NULL) {
return NULL;
}
while (isspace((int)str[0])) {
str++;
}
endptr = &str[strlen(str) - 1];
while (endptr > str && isspace((int)endptr[0])) {
endptr[0] = '\0';
endptr--;
}
return str;
}
// Dummy definition of fork() to work around IDF warning: " warning: _fork is not implemented and will always fail"
// fork() is used in mosquitto.c to deamonize the broker, which we do not call.
pid_t fork (void)
{
abort();
return 0;
}

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/*
* SPDX-FileCopyrightText: 2024 Roger Light <roger@atchoo.org>
*
* SPDX-License-Identifier: EPL-2.0
*
* SPDX-FileContributor: 2024 Espressif Systems (Shanghai) CO LTD
*/
#include <ctype.h>
#include "mosquitto.h"
#include "mosquitto_broker_internal.h"
// Dummy implementation of file access
// This needs to be implemented if we need to load/store config from files
FILE *mosquitto__fopen(const char *path, const char *mode, bool restrict_read)
{
return NULL;
}
char *fgets_extending(char **buf, int *buflen, FILE *stream)
{
return NULL;
}

20
components/mosquitto/port/ifaddrs.c Normal file
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/*
* SPDX-FileCopyrightText: 2024 Roger Light <roger@atchoo.org>
*
* SPDX-License-Identifier: EPL-2.0
*
* SPDX-FileContributor: 2024 Espressif Systems (Shanghai) CO LTD
*/
#include "ifaddrs.h"
// Dummy implementation of getifaddrs()
// TODO: Implement this if we need to use bind_interface option of listener's config
int getifaddrs(struct ifaddrs **ifap)
{
return -1;
}
void freeifaddrs(struct ifaddrs *ifa)
{
}

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components/mosquitto/port/include/mosq_broker.h Normal file
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/*
* SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#pragma once
#include "mosquitto.h"
struct mosquitto__config;
/**
* @brief Mosquitto configuration structure
*
* ESP port of mosquittto supports only the options in this configuration
* structure.
*/
struct mosq_broker_config {
char *host; /*!< Address on which the broker is listening for connections */
int port; /*!< Port number of the broker to listen to */
};
/**
* @brief Start mosquitto broker
*
* This API runs the broker in the calling thread and blocks until
* the mosquitto exits.
*
* @param config Mosquitto configuration structure
* @return int Exit code (0 on success)
*/
int mosq_broker_start(struct mosq_broker_config *config);

24
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/*
* SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#pragma once
#include <ctype.h>
#undef isspace
#define isspace(__c) (__ctype_lookup((int)__c)&_S)
#include_next "config.h"
#define VERSION "v2.0.18~0"
#define _SC_OPEN_MAX_OVERRIDE 4
// used to override syscall for obtaining max open fds
static inline long sysconf(int arg)
{
if (arg == _SC_OPEN_MAX_OVERRIDE) {
return 64;
}
return -1;
}

11
components/mosquitto/port/priv_include/dlfcn.h Normal file
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/*
* SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#pragma once
#define dlopen(a, b) NULL
#define dlclose(A)
#define dlsym(HANDLE, SYM) NULL
#define dlerror() "dlerror not supported"

17
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/*
* SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#pragma once
#define gai_strerror(x) "gai_strerror() not supported"
struct ifaddrs {
struct ifaddrs *ifa_next; /* Next item in list */
char *ifa_name; /* Name of interface */
struct sockaddr *ifa_addr; /* Address of interface */
};
int getifaddrs(struct ifaddrs **ifap);
void freeifaddrs(struct ifaddrs *ifa);

8
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/*
* SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#pragma once
#include_next "sys/poll.h"

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/*
* SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#pragma once
#define EAI_SYSTEM 11 /* system error returned in errno */
#include "esp_log.h"
#define LOG_EMERG (0)
#define LOG_ALERT (1)
#define LOG_CRIT (2)
#define LOG_ERR (3)
#define LOG_WARNING (4)
#define LOG_NOTICE (5)
#define LOG_INFO (6)
#define LOG_DEBUG (7)
#define LOG_DAEMON (8)
#define LOG_LOCAL0 (0)
#define LOG_LOCAL1 (1)
#define LOG_LOCAL2 (2)
#define LOG_LOCAL3 (3)
#define LOG_LOCAL4 (4)
#define LOG_LOCAL5 (5)
#define LOG_LOCAL6 (6)
#define LOG_LOCAL7 (7)
#define syslog(sev, format, ... ) ESP_LOG_LEVEL_LOCAL(sev-2, "mosquitto", format, ##__VA_ARGS__)
#define gai_strerror(x) "gai_strerror() not supported"
#define openlog(a, b, c)
#define closelog()

13
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/*
* SPDX-FileCopyrightText: 2024 Roger Light <roger@atchoo.org>
*
* SPDX-License-Identifier: EPL-2.0
*
* SPDX-FileContributor: 2024 Espressif Systems (Shanghai) CO LTD
*/
#include "signal.h"
int sigprocmask (int, const sigset_t *, sigset_t *)
{
return 0;
}