diff --git a/.github/workflows/mosq__build.yml b/.github/workflows/mosq__build.yml
new file mode 100644
index 0000000000..476d174d6d
--- /dev/null
+++ b/.github/workflows/mosq__build.yml
@@ -0,0 +1,72 @@
+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
diff --git a/.gitmodules b/.gitmodules
index 6ecce627b4..88f827feec 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
[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
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 19a05a7350..8b985ab995 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -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]
diff --git a/ci/check_copyright_config.yaml b/ci/check_copyright_config.yaml
index 77f9f88028..43f2ad7018 100644
--- a/ci/check_copyright_config.yaml
+++ b/ci/check_copyright_config.yaml
@@ -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/**'
diff --git a/components/mosquitto/.cz.yaml b/components/mosquitto/.cz.yaml
new file mode 100644
index 0000000000..eb00948490
--- /dev/null
+++ b/components/mosquitto/.cz.yaml
@@ -0,0 +1,7 @@
+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
diff --git a/components/mosquitto/CMakeLists.txt b/components/mosquitto/CMakeLists.txt
new file mode 100644
index 0000000000..ef43060db1
--- /dev/null
+++ b/components/mosquitto/CMakeLists.txt
@@ -0,0 +1,92 @@
+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()
diff --git a/components/mosquitto/Doxyfile b/components/mosquitto/Doxyfile
new file mode 100644
index 0000000000..de61d39c83
--- /dev/null
+++ b/components/mosquitto/Doxyfile
@@ -0,0 +1,25 @@
+# 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
diff --git a/components/mosquitto/LICENSE.txt b/components/mosquitto/LICENSE.txt
new file mode 100644
index 0000000000..8bb1e27bb2
--- /dev/null
+++ b/components/mosquitto/LICENSE.txt
@@ -0,0 +1,2 @@
+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.
diff --git a/components/mosquitto/README.md b/components/mosquitto/README.md
new file mode 100644
index 0000000000..9199917ed4
--- /dev/null
+++ b/components/mosquitto/README.md
@@ -0,0 +1,32 @@
+# 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.
diff --git a/components/mosquitto/api.md b/components/mosquitto/api.md
new file mode 100644
index 0000000000..39668bde34
--- /dev/null
+++ b/components/mosquitto/api.md
@@ -0,0 +1,65 @@
+# 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)
_Mosquitto configuration structure._ |
+
+## Functions
+
+| Type | Name |
+| ---: | :--- |
+| int | [**mosq\_broker\_start**](#function-mosq_broker_start) (struct [**mosq\_broker\_config**](#struct-mosq_broker_config) \*config)
_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
Address on which the broker is listening for connections
+
+- int port
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)
diff --git a/components/mosquitto/edl-v10 b/components/mosquitto/edl-v10
new file mode 100644
index 0000000000..52646c2d14
--- /dev/null
+++ b/components/mosquitto/edl-v10
@@ -0,0 +1,30 @@
+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.
diff --git a/components/mosquitto/epl-v20 b/components/mosquitto/epl-v20
new file mode 100644
index 0000000000..e48e096345
--- /dev/null
+++ b/components/mosquitto/epl-v20
@@ -0,0 +1,277 @@
+Eclipse Public License - v 2.0
+
+ THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS ECLIPSE
+ PUBLIC LICENSE ("AGREEMENT"). ANY USE, REPRODUCTION OR DISTRIBUTION
+ OF THE PROGRAM CONSTITUTES RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT.
+
+1. DEFINITIONS
+
+"Contribution" means:
+
+ a) in the case of the initial Contributor, the initial content
+ Distributed under this Agreement, and
+
+ b) in the case of each subsequent Contributor:
+ i) changes to the Program, and
+ ii) additions to the Program;
+ where such changes and/or additions to the Program originate from
+ and are Distributed by that particular Contributor. A Contribution
+ "originates" from a Contributor if it was added to the Program by
+ such Contributor itself or anyone acting on such Contributor's behalf.
+ Contributions do not include changes or additions to the Program that
+ are not Modified Works.
+
+"Contributor" means any person or entity that Distributes the Program.
+
+"Licensed Patents" mean patent claims licensable by a Contributor which
+are necessarily infringed by the use or sale of its Contribution alone
+or when combined with the Program.
+
+"Program" means the Contributions Distributed in accordance with this
+Agreement.
+
+"Recipient" means anyone who receives the Program under this Agreement
+or any Secondary License (as applicable), including Contributors.
+
+"Derivative Works" shall mean any work, whether in Source Code or other
+form, that is based on (or derived from) the Program and for which the
+editorial revisions, annotations, elaborations, or other modifications
+represent, as a whole, an original work of authorship.
+
+"Modified Works" shall mean any work in Source Code or other form that
+results from an addition to, deletion from, or modification of the
+contents of the Program, including, for purposes of clarity any new file
+in Source Code form that contains any contents of the Program. Modified
+Works shall not include works that contain only declarations,
+interfaces, types, classes, structures, or files of the Program solely
+in each case in order to link to, bind by name, or subclass the Program
+or Modified Works thereof.
+
+"Distribute" means the acts of a) distributing or b) making available
+in any manner that enables the transfer of a copy.
+
+"Source Code" means the form of a Program preferred for making
+modifications, including but not limited to software source code,
+documentation source, and configuration files.
+
+"Secondary License" means either the GNU General Public License,
+Version 2.0, or any later versions of that license, including any
+exceptions or additional permissions as identified by the initial
+Contributor.
+
+2. GRANT OF RIGHTS
+
+ a) Subject to the terms of this Agreement, each Contributor hereby
+ grants Recipient a non-exclusive, worldwide, royalty-free copyright
+ license to reproduce, prepare Derivative Works of, publicly display,
+ publicly perform, Distribute and sublicense the Contribution of such
+ Contributor, if any, and such Derivative Works.
+
+ b) Subject to the terms of this Agreement, each Contributor hereby
+ grants Recipient a non-exclusive, worldwide, royalty-free patent
+ license under Licensed Patents to make, use, sell, offer to sell,
+ import and otherwise transfer the Contribution of such Contributor,
+ if any, in Source Code or other form. This patent license shall
+ apply to the combination of the Contribution and the Program if, at
+ the time the Contribution is added by the Contributor, such addition
+ of the Contribution causes such combination to be covered by the
+ Licensed Patents. The patent license shall not apply to any other
+ combinations which include the Contribution. No hardware per se is
+ licensed hereunder.
+
+ c) Recipient understands that although each Contributor grants the
+ licenses to its Contributions set forth herein, no assurances are
+ provided by any Contributor that the Program does not infringe the
+ patent or other intellectual property rights of any other entity.
+ Each Contributor disclaims any liability to Recipient for claims
+ brought by any other entity based on infringement of intellectual
+ property rights or otherwise. As a condition to exercising the
+ rights and licenses granted hereunder, each Recipient hereby
+ assumes sole responsibility to secure any other intellectual
+ property rights needed, if any. For example, if a third party
+ patent license is required to allow Recipient to Distribute the
+ Program, it is Recipient's responsibility to acquire that license
+ before distributing the Program.
+
+ d) Each Contributor represents that to its knowledge it has
+ sufficient copyright rights in its Contribution, if any, to grant
+ the copyright license set forth in this Agreement.
+
+ e) Notwithstanding the terms of any Secondary License, no
+ Contributor makes additional grants to any Recipient (other than
+ those set forth in this Agreement) as a result of such Recipient's
+ receipt of the Program under the terms of a Secondary License
+ (if permitted under the terms of Section 3).
+
+3. REQUIREMENTS
+
+3.1 If a Contributor Distributes the Program in any form, then:
+
+ a) the Program must also be made available as Source Code, in
+ accordance with section 3.2, and the Contributor must accompany
+ the Program with a statement that the Source Code for the Program
+ is available under this Agreement, and informs Recipients how to
+ obtain it in a reasonable manner on or through a medium customarily
+ used for software exchange; and
+
+ b) the Contributor may Distribute the Program under a license
+ different than this Agreement, provided that such license:
+ i) effectively disclaims on behalf of all other Contributors all
+ warranties and conditions, express and implied, including
+ warranties or conditions of title and non-infringement, and
+ implied warranties or conditions of merchantability and fitness
+ for a particular purpose;
+
+ ii) effectively excludes on behalf of all other Contributors all
+ liability for damages, including direct, indirect, special,
+ incidental and consequential damages, such as lost profits;
+
+ iii) does not attempt to limit or alter the recipients' rights
+ in the Source Code under section 3.2; and
+
+ iv) requires any subsequent distribution of the Program by any
+ party to be under a license that satisfies the requirements
+ of this section 3.
+
+3.2 When the Program is Distributed as Source Code:
+
+ a) it must be made available under this Agreement, or if the
+ Program (i) is combined with other material in a separate file or
+ files made available under a Secondary License, and (ii) the initial
+ Contributor attached to the Source Code the notice described in
+ Exhibit A of this Agreement, then the Program may be made available
+ under the terms of such Secondary Licenses, and
+
+ b) a copy of this Agreement must be included with each copy of
+ the Program.
+
+3.3 Contributors may not remove or alter any copyright, patent,
+trademark, attribution notices, disclaimers of warranty, or limitations
+of liability ("notices") contained within the Program from any copy of
+the Program which they Distribute, provided that Contributors may add
+their own appropriate notices.
+
+4. COMMERCIAL DISTRIBUTION
+
+Commercial distributors of software may accept certain responsibilities
+with respect to end users, business partners and the like. While this
+license is intended to facilitate the commercial use of the Program,
+the Contributor who includes the Program in a commercial product
+offering should do so in a manner which does not create potential
+liability for other Contributors. Therefore, if a Contributor includes
+the Program in a commercial product offering, such Contributor
+("Commercial Contributor") hereby agrees to defend and indemnify every
+other Contributor ("Indemnified Contributor") against any losses,
+damages and costs (collectively "Losses") arising from claims, lawsuits
+and other legal actions brought by a third party against the Indemnified
+Contributor to the extent caused by the acts or omissions of such
+Commercial Contributor in connection with its distribution of the Program
+in a commercial product offering. The obligations in this section do not
+apply to any claims or Losses relating to any actual or alleged
+intellectual property infringement. In order to qualify, an Indemnified
+Contributor must: a) promptly notify the Commercial Contributor in
+writing of such claim, and b) allow the Commercial Contributor to control,
+and cooperate with the Commercial Contributor in, the defense and any
+related settlement negotiations. The Indemnified Contributor may
+participate in any such claim at its own expense.
+
+For example, a Contributor might include the Program in a commercial
+product offering, Product X. That Contributor is then a Commercial
+Contributor. If that Commercial Contributor then makes performance
+claims, or offers warranties related to Product X, those performance
+claims and warranties are such Commercial Contributor's responsibility
+alone. Under this section, the Commercial Contributor would have to
+defend claims against the other Contributors related to those performance
+claims and warranties, and if a court requires any other Contributor to
+pay any damages as a result, the Commercial Contributor must pay
+those damages.
+
+5. NO WARRANTY
+
+EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, AND TO THE EXTENT
+PERMITTED BY APPLICABLE LAW, THE PROGRAM IS PROVIDED ON AN "AS IS"
+BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, EITHER EXPRESS OR
+IMPLIED INCLUDING, WITHOUT LIMITATION, ANY WARRANTIES OR CONDITIONS OF
+TITLE, NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR
+PURPOSE. Each Recipient is solely responsible for determining the
+appropriateness of using and distributing the Program and assumes all
+risks associated with its exercise of rights under this Agreement,
+including but not limited to the risks and costs of program errors,
+compliance with applicable laws, damage to or loss of data, programs
+or equipment, and unavailability or interruption of operations.
+
+6. DISCLAIMER OF LIABILITY
+
+EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, AND TO THE EXTENT
+PERMITTED BY APPLICABLE LAW, NEITHER RECIPIENT NOR ANY CONTRIBUTORS
+SHALL HAVE ANY LIABILITY FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING WITHOUT LIMITATION LOST
+PROFITS), 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 OR DISTRIBUTION OF THE PROGRAM OR THE
+EXERCISE OF ANY RIGHTS GRANTED HEREUNDER, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+7. GENERAL
+
+If any provision of this Agreement is invalid or unenforceable under
+applicable law, it shall not affect the validity or enforceability of
+the remainder of the terms of this Agreement, and without further
+action by the parties hereto, such provision shall be reformed to the
+minimum extent necessary to make such provision valid and enforceable.
+
+If Recipient institutes patent litigation against any entity
+(including a cross-claim or counterclaim in a lawsuit) alleging that the
+Program itself (excluding combinations of the Program with other software
+or hardware) infringes such Recipient's patent(s), then such Recipient's
+rights granted under Section 2(b) shall terminate as of the date such
+litigation is filed.
+
+All Recipient's rights under this Agreement shall terminate if it
+fails to comply with any of the material terms or conditions of this
+Agreement and does not cure such failure in a reasonable period of
+time after becoming aware of such noncompliance. If all Recipient's
+rights under this Agreement terminate, Recipient agrees to cease use
+and distribution of the Program as soon as reasonably practicable.
+However, Recipient's obligations under this Agreement and any licenses
+granted by Recipient relating to the Program shall continue and survive.
+
+Everyone is permitted to copy and distribute copies of this Agreement,
+but in order to avoid inconsistency the Agreement is copyrighted and
+may only be modified in the following manner. The Agreement Steward
+reserves the right to publish new versions (including revisions) of
+this Agreement from time to time. No one other than the Agreement
+Steward has the right to modify this Agreement. The Eclipse Foundation
+is the initial Agreement Steward. The Eclipse Foundation may assign the
+responsibility to serve as the Agreement Steward to a suitable separate
+entity. Each new version of the Agreement will be given a distinguishing
+version number. The Program (including Contributions) may always be
+Distributed subject to the version of the Agreement under which it was
+received. In addition, after a new version of the Agreement is published,
+Contributor may elect to Distribute the Program (including its
+Contributions) under the new version.
+
+Except as expressly stated in Sections 2(a) and 2(b) above, Recipient
+receives no rights or licenses to the intellectual property of any
+Contributor under this Agreement, whether expressly, by implication,
+estoppel or otherwise. All rights in the Program not expressly granted
+under this Agreement are reserved. Nothing in this Agreement is intended
+to be enforceable by any entity that is not a Contributor or Recipient.
+No third-party beneficiary rights are created under this Agreement.
+
+Exhibit A - Form of Secondary Licenses Notice
+
+"This Source Code may also be made available under the following
+Secondary Licenses when the conditions for such availability set forth
+in the Eclipse Public License, v. 2.0 are satisfied: {name license(s),
+version(s), and exceptions or additional permissions here}."
+
+ Simply including a copy of this Agreement, including this Exhibit A
+ is not sufficient to license the Source Code under Secondary Licenses.
+
+ If it is not possible or desirable to put the notice in a particular
+ file, then You may include the notice in a location (such as a LICENSE
+ file in a relevant directory) where a recipient would be likely to
+ look for such a notice.
+
+ You may add additional accurate notices of copyright ownership.
diff --git a/components/mosquitto/examples/broker/CMakeLists.txt b/components/mosquitto/examples/broker/CMakeLists.txt
new file mode 100644
index 0000000000..5efb12ce92
--- /dev/null
+++ b/components/mosquitto/examples/broker/CMakeLists.txt
@@ -0,0 +1,6 @@
+# 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)
diff --git a/components/mosquitto/examples/broker/README.md b/components/mosquitto/examples/broker/README.md
new file mode 100644
index 0000000000..6d8545505c
--- /dev/null
+++ b/components/mosquitto/examples/broker/README.md
@@ -0,0 +1,38 @@
+# 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
+```
diff --git a/components/mosquitto/examples/broker/main/CMakeLists.txt b/components/mosquitto/examples/broker/main/CMakeLists.txt
new file mode 100644
index 0000000000..b76a5b5306
--- /dev/null
+++ b/components/mosquitto/examples/broker/main/CMakeLists.txt
@@ -0,0 +1,2 @@
+idf_component_register(SRCS "broker.c"
+ PRIV_REQUIRES newlib nvs_flash esp_netif esp_event mqtt)
diff --git a/components/mosquitto/examples/broker/main/Kconfig.projbuild b/components/mosquitto/examples/broker/main/Kconfig.projbuild
new file mode 100644
index 0000000000..2e5efc912a
--- /dev/null
+++ b/components/mosquitto/examples/broker/main/Kconfig.projbuild
@@ -0,0 +1,22 @@
+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
diff --git a/components/mosquitto/examples/broker/main/broker.c b/components/mosquitto/examples/broker/main/broker.c
new file mode 100644
index 0000000000..3e1d09465c
--- /dev/null
+++ b/components/mosquitto/examples/broker/main/broker.c
@@ -0,0 +1,89 @@
+/*
+ * SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Unlicense OR CC0-1.0
+ */
+#include
+#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);
+}
diff --git a/components/mosquitto/examples/broker/main/idf_component.yml b/components/mosquitto/examples/broker/main/idf_component.yml
new file mode 100644
index 0000000000..2ca4aac01a
--- /dev/null
+++ b/components/mosquitto/examples/broker/main/idf_component.yml
@@ -0,0 +1,6 @@
+dependencies:
+ espressif/mosquitto:
+ version: "*"
+ override_path: "../../.."
+ protocol_examples_common:
+ path: ${IDF_PATH}/examples/common_components/protocol_examples_common
diff --git a/components/mosquitto/examples/broker/pytest_mosq_local.py b/components/mosquitto/examples/broker/pytest_mosq_local.py
new file mode 100644
index 0000000000..50e5522bf5
--- /dev/null
+++ b/components/mosquitto/examples/broker/pytest_mosq_local.py
@@ -0,0 +1,18 @@
+# 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')
diff --git a/components/mosquitto/examples/broker/sdkconfig.ci b/components/mosquitto/examples/broker/sdkconfig.ci
new file mode 100644
index 0000000000..efa237ef85
--- /dev/null
+++ b/components/mosquitto/examples/broker/sdkconfig.ci
@@ -0,0 +1,3 @@
+CONFIG_EXAMPLE_CONNECT_WIFI=n
+CONFIG_EXAMPLE_CONNECT_ETHERNET=n
+CONFIG_EXAMPLE_BROKER_RUN_LOCAL_MQTT_CLIENT=y
diff --git a/components/mosquitto/generate_api_docs.sh b/components/mosquitto/generate_api_docs.sh
new file mode 100755
index 0000000000..a459f87c55
--- /dev/null
+++ b/components/mosquitto/generate_api_docs.sh
@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+
+doxygen Doxyfile
+
+esp-doxybook -i doxygen/xml -o ./api.md
diff --git a/components/mosquitto/idf_component.yml b/components/mosquitto/idf_component.yml
new file mode 100644
index 0000000000..347cc8f32b
--- /dev/null
+++ b/components/mosquitto/idf_component.yml
@@ -0,0 +1,5 @@
+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'
diff --git a/components/mosquitto/mosquitto b/components/mosquitto/mosquitto
new file mode 160000
index 0000000000..3923526c6b
--- /dev/null
+++ b/components/mosquitto/mosquitto
@@ -0,0 +1 @@
+Subproject commit 3923526c6b4c048bbecad2506c4c9963bc46cd36
diff --git a/components/mosquitto/port/broker.c b/components/mosquitto/port/broker.c
new file mode 100644
index 0000000000..7742b55980
--- /dev/null
+++ b/components/mosquitto/port/broker.c
@@ -0,0 +1,199 @@
+/*
+ * SPDX-FileCopyrightText: 2024 Roger Light
+ *
+ * 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;
+}
diff --git a/components/mosquitto/port/callbacks.c b/components/mosquitto/port/callbacks.c
new file mode 100644
index 0000000000..cf6e5f9a29
--- /dev/null
+++ b/components/mosquitto/port/callbacks.c
@@ -0,0 +1,48 @@
+/*
+ * SPDX-FileCopyrightText: 2024 Roger Light
+ *
+ * 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;
+}
diff --git a/components/mosquitto/port/config.c b/components/mosquitto/port/config.c
new file mode 100644
index 0000000000..04ab00b977
--- /dev/null
+++ b/components/mosquitto/port/config.c
@@ -0,0 +1,243 @@
+/*
+ * SPDX-FileCopyrightText: 2024 Roger Light
+ *
+ * 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;
+}
diff --git a/components/mosquitto/port/files.c b/components/mosquitto/port/files.c
new file mode 100644
index 0000000000..b71fa05439
--- /dev/null
+++ b/components/mosquitto/port/files.c
@@ -0,0 +1,22 @@
+/*
+ * SPDX-FileCopyrightText: 2024 Roger Light
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * SPDX-FileContributor: 2024 Espressif Systems (Shanghai) CO LTD
+ */
+#include
+#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;
+}
diff --git a/components/mosquitto/port/ifaddrs.c b/components/mosquitto/port/ifaddrs.c
new file mode 100644
index 0000000000..1e746416bd
--- /dev/null
+++ b/components/mosquitto/port/ifaddrs.c
@@ -0,0 +1,20 @@
+/*
+ * SPDX-FileCopyrightText: 2024 Roger Light
+ *
+ * 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)
+{
+
+}
diff --git a/components/mosquitto/port/include/mosq_broker.h b/components/mosquitto/port/include/mosq_broker.h
new file mode 100644
index 0000000000..88e2bc6975
--- /dev/null
+++ b/components/mosquitto/port/include/mosq_broker.h
@@ -0,0 +1,31 @@
+/*
+ * 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);
diff --git a/components/mosquitto/port/priv_include/config.h b/components/mosquitto/port/priv_include/config.h
new file mode 100644
index 0000000000..8680e88f75
--- /dev/null
+++ b/components/mosquitto/port/priv_include/config.h
@@ -0,0 +1,24 @@
+/*
+ * SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+#pragma once
+#include
+
+#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;
+}
diff --git a/components/mosquitto/port/priv_include/dlfcn.h b/components/mosquitto/port/priv_include/dlfcn.h
new file mode 100644
index 0000000000..f41e2ba6ac
--- /dev/null
+++ b/components/mosquitto/port/priv_include/dlfcn.h
@@ -0,0 +1,11 @@
+/*
+ * 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"
diff --git a/components/mosquitto/port/priv_include/ifaddrs.h b/components/mosquitto/port/priv_include/ifaddrs.h
new file mode 100644
index 0000000000..604628cbac
--- /dev/null
+++ b/components/mosquitto/port/priv_include/ifaddrs.h
@@ -0,0 +1,17 @@
+/*
+ * 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);
diff --git a/components/mosquitto/port/priv_include/poll.h b/components/mosquitto/port/priv_include/poll.h
new file mode 100644
index 0000000000..1ac76a5b4f
--- /dev/null
+++ b/components/mosquitto/port/priv_include/poll.h
@@ -0,0 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+#pragma once
+
+#include_next "sys/poll.h"
diff --git a/components/mosquitto/port/priv_include/sys/syslog.h b/components/mosquitto/port/priv_include/sys/syslog.h
new file mode 100644
index 0000000000..a609fa623b
--- /dev/null
+++ b/components/mosquitto/port/priv_include/sys/syslog.h
@@ -0,0 +1,35 @@
+/*
+ * 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()
diff --git a/components/mosquitto/port/signals.c b/components/mosquitto/port/signals.c
new file mode 100644
index 0000000000..f1559b51aa
--- /dev/null
+++ b/components/mosquitto/port/signals.c
@@ -0,0 +1,13 @@
+/*
+ * SPDX-FileCopyrightText: 2024 Roger Light
+ *
+ * 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;
+}