- Clients can now offload crypto tasks to an external crypto device through
the OpenSSL ENGINE API.
- The keyfiles can now be treated as PEM or ENGINE keys.
- Two new functions were added to libmosquitto to set up the previously
mentioned features.
- Both mosquitto_sub and mosquitto_pub include support to turn on the mentioned
features through command line options.
Signed-off-by: Nicolás Pernas Maradei <nicopernas@gmail.com>
This comes in the form of:
* Per listener maximum_qos option, which can be in the range 0-2.
* Changes to mosquitto_publish*() to return MOSQ_ERR_QOS_NOT_SUPPORTED
if attempting to publish with a higher QoS than supported.
* Bridges will downgrade messages to match the maximum QoS.
More tests on the broker side (specifically bridges) are required. This
needs bridge support for MQTT 5 first.
The connection wouldn't always complete if mosquitto_loop_start() was
called before mosquitto_connect_async(). Closes#848.
Thanks to Ian Gough.
Bug: https://github.com/eclipse/mosquitto/issues/848
Signed-off-by: Roger A. Light <roger@atchoo.org>
Adding OCSP Stapling support to mosquitto, so that the TLS client side
requests the certificate status and checks it.
This code uses the OpenSSL-based OCSP implementation and is somewhat
based on the libcurl code for OCSP stapling.
Signed-off-by: Dr. Lars Voelker <lars.voelker@bmw.de>
Limiting queued message depth purely based on message count is hard to
control for memory constrained devices. The size of messages can vary
wildly, from a few bytes, to a few kilobytes. Support a new
max_queued_bytes option, and drop packets when the first limit is
reached. Option defaults to 0 (disabled) by default.
Support also a max_inflight_bytes variable, with similar behaviour.
Fixes (partof) https://github.com/eclipse/mosquitto/issues/100
This pulls up some helper routines for calculating whether to allow
inflight or queuing, resolving some inconsistences in connection
resumption.
Signed-off-by: Karl Palsson <karlp@etactica.com>
libmosquitto shouldn't cancel threads it didn't create. This change
allows us to keep track of whether threads were created by the library
or by external code.
Thanks to Josip Ćavar.
Bug: https://github.com/eclipse/mosquitto/issues/166
Split message queue in two queues: in-flight and queued to avoid the
need to iterate over all messages.
Signed-off-by: Pierre Fersing <pierre.fersing@bleemeo.com>
Fix the case where a message received just before the keepalive timer
expired would cause the client to miss the keepalive timer.
Thanks to Graham Benton.
This change in behaviour can be justified by considering when the
timeout may have occurred.
* If a connection is unreliable and has dropped, but without one end
noticing, the messages will be retried on reconnection. Sending
additional PUBLISH or PUBREL would not have changed anything.
* If a client is overloaded/unable to respond/has a slow connection then
sending additional PUBLISH or PUBREL would not help the client catch
up. Once the backlog has cleared the client will respond. If it is not
able to catch up, sending additional duplicates would not help either.
