Some OpenSSL engines (selectable via tls_engine option) may require a
password to make use of private keys created with them in the first place.
The TPM engine for example, will require a password to access the underlying
TPM's Storage Root Key (SRK), which is the root key of a hierarchy of keys
associated with a TPM; it is generated within a TPM and is a non-migratable
key. Each owned TPM contains a SRK, generated by the TPM at the request
of the Owner. [1]
By default, the engine will prompt the user to introduce the SRK password
before any private keys created with the engine can be used. This could
be inconvenient when running on an unattended system.
Here's where the new tls_engine_kpass_sha option comes in handy. The user
can specify a SHA1 hash of its engine private key password via command
line or config file and it will be passed on to the engine directly.
This commit adds support for both clients (libmosquitto) and broker.
[1] https://goo.gl/qQoXBY
Signed-off-by: Nicolás Pernas Maradei <nicopernas@gmail.com>
Add same OpenSSL engine support to mosquitto (server side) previously added to
client side only.
Signed-off-by: Nicolás Pernas Maradei <nicopernas@gmail.com>
This update adds an option to only publishes bridge
notification messages to the local side of the bridge.
It adds a config file option called notifications_local_only
that accepts a boolean value, defaults to false to be
consistent with existing behaviour.
Fixes#233
Signed-off-by: Ben Hardill <hardillb@uk.ibm.com>
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>
Instead of simply tracking the count of stored messages, keep track of
the total byte size of stored messages. While only informational at
this point, it provides the basis for byte based limits in the future.
Signed-off-by: Karl Palsson <karlp@etactica.com>
