This add the gen_app_key to the device keys which is needed for FUOTA
and adds a random multicast address + key to the fuota deployment. To
the FUOTA job structure, this adds a return msg such that errors can
be captured in the database.
This adds options to auto-calculate the fragment size (based on max.
payload size available for the given data-rate) and multicast
timeout (based on server settings).
This makes it possible to automatically remove items from the queue in
case the expires_at timestamp has reached. This field is optional and
the default remains to never expire queue-items.
This adds a Gateway Mesh section to the web-interface (+ API endpoints)
to see the status op each Relay Gateway within the Gateway Mesh.
The Gateway Mesh (https://github.com/chirpstack/chirpstack-gateway-mesh)
is an experimental feature to extend LoRaWAN coverage throug Relay
Gateways.
In general ChirpStack is configured with a rx1_delay configuration
matching the network latency (e.g. on cellular, one might want to set
this to rx1_delay=3). However, this does not take into account a
possible latency of the end-application. Handling the uplink and
enqueueing a downlink might take more time than the configured rx1_delay
(and get_downlink_data_delay) allows.
This option makes it possible to increase the RX1 Delay in the
device-profile. If the RX1 Delay has between increased relative to
the system default, then the get_downlink_data_delay will be
incremented with the same amount of seconds.
All these files can be generated using the `make api` command and there
is no real need to commit these into the repo. Only the api/go files
need to be comitted of how the Go import system works.
This also updates the Rust, Go, JS and gRPC-web (JS) code generation and
UI build to use the nix-shell environment instead of using Docker.
This aligns the multicast class-b ping-slot configuration with the way
how it is configured in the device-profile. This deprecates the
class_b_ping_slot_period field in favor of the class_b_ping_slot_nb_k
field, which should be a value between 0 - 7 (this is defined and
explained by the LoRaWAN specification).
Closes#255.
This migrates the device-sessions from Redis into PostgreSQL. This fixes
a performance issue in case the same DevAddr is reused many times
(e.g. devices rejoining very often or a NetID with small DevAddr space).
There were two issues:
The Redis key containing the DevAddr -> DevEUIs mapping could contain
DevEUIs that no longer used the DevAddr. This mapping would only expire
from the Redis database after none of the devices would use the DevAddr
for more than the configured device_session_ttl.
The other issue with the previous approach was that on for example a
Type 7 NetID, a single DevAddr could be re-used multiple times. As each
device-session could be stored on a different Redis Cluster instance,
there was no option to retrieve all device-sessions at once. Thus a high
re-usage of a single DevAddr would cause an increase in Redis queries.
Both issues are solved by moving the device-session into PostgreSQL
as the DevAddr is a column of the device record and thus filtering on
this DevAddr would always result in the devices using that DevAddr, as
well all device-sessions for a DevAddr can be retrieved by a single
query.
Note that to migrate the device-sessions, you must run:
chirpstack -c path/to/config migrate-device-sessions-to-postgres
A nice side-effect is that a PostgreSQL backup / restore will also
restore the device connectivity.
Closes#362 and #74.
Note that the integration events will contain the application +
device-profile + device tags. Integration events will NOT contain the
tenant tags. Most likely tenant tags will be used to store information
about the tenant, data that is unrelated to the integration events.
Fixes#211.
The gw_time defines the RX time by the gateway, the ns_time defines when
it was received by the NS. The latter could for example help to debug
latency between the GW <> NS.
Historically, the tx power was defined as ERP. The Semtech UDP Packet
Forwarder protocol was never explicit if the "powe" field was in ERP or
EIRP. However, as the antenna gain in the Semtech UDP Packet Forwarder
is documented as dBi and is deducted from the "powe" field, this means
that "powe" is in EIRP.
This commit corrects all values to EIRP, to make sure that if the
antenna gain is properly configured (which should be), that the correct
rf_power is used by the gateway.
This implements end-to-end encryption between the end-device and
end-application. The encrypted AppSKey or SessionKeyID is forwarded to
the end-application which should be able to decrypt or request the
AppSKey to decrypt the uplink payload. As well the end-application will
be able to enqueue encrypted application payloads.
Using this mechanism, ChirpStack will never have access to the uplink
and downlink application-payloads.
