182 lines
8.6 KiB
Markdown
182 lines
8.6 KiB
Markdown
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.. title: Version 1.0 released
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.. slug: version-1-0-released
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.. date: 2012-08-14 00:12:52
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.. tags: Releases
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.. category:
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.. link:
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.. description:
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.. type: text
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-->
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This is a feature and bugfix release. This is the most significant release for
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the mosquitto project so far. It encompasses >20% of the total commits for
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the project and has an increase in source tarball size of 95%, mostly down to
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the new bundled tests and new man pages. It introduces lots of new features for
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the broker and improves the API of the client libraries, although this does
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mean that the libraries are incompatible with previous releases. I apologise
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for this and hope you'll agree that the changes are worth it.
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I've been overwhelmed with the amount of feedback that I've received recently,
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thanks to everyone that has got in touch to let me know where something could
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be improved. I'd particularly like to thank Nicholas Humfrey for setting me on
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the continuous integration path.
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On a slightly different note, my wife was expecting our first child two days
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ago so it's quite likely I'll be less responsive to support requests for a
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little while.
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# Significant changes
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These are what I think are the exciting changes for this release.
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* SSL/TLS support across the board - the broker, client libraries and pub/sub
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clients. This provides certificate based network encryption in a very
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similar manner to SSL in a web browser where the client verifies that the
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server is valid. It is also possible to use client certificates to
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authenticate the clients with the server.
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* TLS-PSK support (not on Python). This is "pre-shared-key" network encryption
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and represents a simpler encryption interface than certificate based
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encryption which makes it much more suitable for embedded/constrained
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devices.
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* The Python client library is now written in pure Python so is much easier to
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use. It supports Python 2.6, 2.7 and 3.\* (no SSL support for 2.6).
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* All client libraries have had their interface overhauled and should now be
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much saner and straightforward to use.
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* The client libraries have thread support.
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* Passwords files for the broker are stored hashed and salted and a utility
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for maintaining them has been provided.
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* It is now possible to write access and authentication plugins for the broker
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for providing custom support for authentication against e.g. a SQL database.
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* Implementation of a good test suite which has lead to improved protocol
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compliance amongst other bug fixes.
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* Masses of bug fixes.
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# Downloads
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Source is available on the [download page], the binary packages will follow as
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soon as possible. Windows and Ubuntu packages are currently available, more to
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follow.
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# Changes
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The complete list of changes is below:
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# The broker
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* Add SSL/TLS support.
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* Add TLS-PSK support, providing a simpler encryption method for constrained
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devices.
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* Passwords are now salted+hashed if compiled with WITH_TLS (recommended).
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* Add mosquitto_passwd for handling password files.
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* Add $SYS/broker/publish/messages/{sent|received} to show the number of
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PUBLISH messages sent/received.
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* Add $SYS/broker/publish/bytes/{sent|received} to show the number of PUBLISH
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bytes sent/received.
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* Add reload parameter for security init/cleanup functions.
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* Add option for expiring disconnected persistent clients.
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* Add option for queueing of QoS 0 messages when persistent clients are
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disconnected.
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* Enforce client id limits in the broker (only when WITH_STRICT_PROTOCOL is
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defined).
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* Fix reloading of log configuration.
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* Add support for `try_private` config option for bridge connections.
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* Add support for `autosave_on_changes` config option.
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* Add support for `include_dir` config option.
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* Add support for topic remapping.
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* Usernames were being lost when a non clean-session client reconnected,
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potentially causing problems with ACLs. This has been fixed.
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* Significant improvement to memory handling on Windows.
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* Bridges with outgoing topics will now set the retain flag correctly so that
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messages will be retained on the remote broker.
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* Incoming bridge connections are now detected by checking if bit 8 of the
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protocol version number is set. This requires support from the remote
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broker.
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* Add support for `notification_topic` option.
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* Add $SYS/broker/subscriptions/count and $SYS/broker/retained messages/count.
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* Add `restart_timeout` to control the amount of time an automatic bridge will
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wait before reconnecting.
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* Overlapping subscriptions are now handled properly. Fixes bug #928538.
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* Fix reloading of `persistence_file` and `persistence_location`.
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* Fix broker crash on incorrect protocol number.
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* Fix missing COMPAT_ECONNRESET define on Windows.
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* Clients that had disconnected were not always being detected immediately on
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Linux. This has been fixed.
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* Don't save $SYS messages to the on-disk persistent db. All $SYS messages
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should be reconstructed on a restart. This means bridge connection
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notifications will now be correct on a restart.
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* Fix reloading of bridge clients from the persistent db. This means that
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outgoing bridged topics should always work.
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* Local bridges are now no longer restricted by local ACLs.
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* Discard publish messages with zero length topics.
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* Drop to "mosquitto" user even if no config file specified.
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* Don't incorrectly allow topic access if ACL patterns but no normal ACL rules
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are defined.
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## The client libraries
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* Add SSL/TLS support.
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* Add TLS-PSK support, providing a simpler encryption method for constrained
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devices.
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* Add javascript/websockets client library.
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* Add `struct mosquitto *mosq` parameter for all callbacks in the client
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library. This is a binary incompatible change so the soversion of the
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libraries has been incremented. The new parameter should make it easier to
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use callbacks in practice.
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* Add `mosquitto_want_write()` for use when using own select() loop with
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`mosquitto_socket()`.
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* Add `mosquitto_connect_async()` to provide a non-blocking connect client call.
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* Add `mosquitto_user_data_set()` to allow user data pointer to be updated.
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* Add "int rc" parameter to disconnect callback to indicate whether disconnect
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was unexpected or the result of calling `mosquitto_disconnect()`.
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* Add `mosquitto_strerror()` for obtaining a string description of error numbers.
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* Add `mosquitto_connack_string()` for obtaining a string description of MQTT
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connection results.
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* Add `mosquitto_will_clear()` and change `mosquitto_will_set()` to only set the
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will.
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* Add `mosquitto_sub_topic_tokenise()` and `mosquitto_sub_topic_tokens_free()`
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utility functions to tokenise a subscription/topic string into a string
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array.
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* Add `mosquitto_topic_matches_sub()` to check whether a topic matches a
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subscription.
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* Replaced `mosquitto_log_init()` with `mosquitto_log_callback_set()` to allow
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clients to decide what to do with log messages.
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* Client will now disconnect itself from the broker if it doesn't receive a
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PINGRESP in the keepalive period after sending a PINGREQ.
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* Client will now send a PINGREQ if it has not received a message from the
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broker in keepalive seconds.
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* `mosquitto_new()` will now generate a random client id if the id parameter
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is NULL.
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* Added `max_packets` to `mosquitto_loop()`, `mosquitto_loop_read()` and
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`mosquitto_loop_write()` to control the maximum number of packets that are
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handled per call.
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* Payload parameters are now void * instead of uint8\_t \*.
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* The `clean_session` parameter has been moved from `mosquitto_connect()` to
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`mosquitto_new()` because it is a client parameter rather than a connection
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parameter.
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* Functions now use int instead of uint\*\_t where possible.
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* `mosquitto_new()` now sets errno to indicate failure type.
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* Return `MOSQ_ERR_INVAL` on zero length topic.
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* Fix automatic client id generation on Windows.
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* `mosquitto_loop_misq()` can now return `MOSQ_ERR_NO_CONN`.
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* Compile static library as well as dynamic library with default makefiles.
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* Rename C++ namespace from mosquittopp to mosqpp to remove ambiguity.
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* C++ `lib_init()`, `lib_version()` and `lib_cleanup()` are now in the mosqpp
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namespace directly, not mosquittopp class members.
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* The Python library is now written in pure Python and so no longer depends on
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libmosquitto.
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* The Python library includes SSL/TLS support.
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* The Python library should now be compatible with Python 3.
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## Other
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* Fix db_dump reading of retained messages.
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* Add example of logging all messages to mysql.
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* Add C++ client example.
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* Fix potential buffer overflow in pub/sub clients.
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* Add "make binary" target that doesn't make documents.
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* Add `--help` arguments to pub/sub clients.
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* Fix building on Solaris.
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[download page]: /download
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