Zino

Added

- Calculate downtime for BGP events ([368](https://github.com/Uninett/zino/issues/368))
- Added debug logging of low-level SNMP session details to aid in debugging low-level OS resource management problems
- Added directory for Sphinx documentation in order to set up ReadTheDocs site and secure the name `zino` there.

Fixed

- Added alternative C-based SNMP back-end for massive performance gains ([383](https://github.com/Uninett/zino/issues/383))
- Log "home" address changes as `DEBUG` level information, to avoid unnecessary verbosity in VRRP setups ([215](https://github.com/Uninett/zino/issues/215))
- Fix Zino dependencies to allow running on Python 3.12 ([386](https://github.com/Uninett/zino/issues/386))
- Fixed unintended symbolic translations in the SNMP abstraction layer, and removed now obsolete workarounds for the problem ([389](https://github.com/Uninett/zino/issues/389))
- Removed development tools from list of optional package runtime requirements ([399](https://github.com/Uninett/zino/issues/399))

Added

- Added full implementation of the `CLEARFLAP` API command ([113](https://github.com/Uninett/zino/issues/113))
- Log warning if `secrets` file is world-readable ([280](https://github.com/Uninett/zino/issues/280))
- Only load and parse pollfile if it has been changed since last load ([282](https://github.com/Uninett/zino/issues/282))
- Added customized logging of multiple traps, just as in Zino 1:
- `CISCOTRAP-MIB::reload`
- `CISCO-CONFIG-MAN-MIB::ciscoConfigManEvent`
- `CISCO-PIM-MIB::ciscoPimInvalidRegister`
- `CISCO-PIM-MIB::ciscoPimInvalidJoinPrune`
- `OSPF-TRAP-MIB::ospfIfConfigError`

([319](https://github.com/Uninett/zino/issues/319))
- Added support for tracking accumulated event downtime for reachability and portstate events ([332](https://github.com/Uninett/zino/issues/332))
- Custom logging configuration can now be applied in `zino.toml`

Changed

- Rename/alias BGP and Juniper alarm event attributes in order to have more useful variable names in Python code, while retaining aliases that are compatible with the legacy API protocol ([352](https://github.com/Uninett/zino/issues/352))

Fixed

- Properly use dashes in event attribute names in the legacy API ([281](https://github.com/Uninett/zino/issues/281))
- Use Zino 1-compatible field names for serialization of planned maintenance ([287](https://github.com/Uninett/zino/issues/287))
- Use Zino 1 field names for serialization of BGP/BFD events ([331](https://github.com/Uninett/zino/issues/331))
- Match against port alias instead of port description when `match_type` is `regexp` or `str` for portstate maintenance events. Still matches port description for `intf-regexp`. ([297](https://github.com/Uninett/zino/issues/297))
- Fix BGP-related Pydantic serialization warnings ([312](https://github.com/Uninett/zino/issues/312))
- Stop logging empty interface descriptions on first discovery ([314](https://github.com/Uninett/zino/issues/314))
- Reschedule devices whose configuration attributes where changed in the pollfile ([330](https://github.com/Uninett/zino/issues/330))
- Use default interval from pollfile to stagger new jobs ([337](https://github.com/Uninett/zino/issues/337))
- When matching an event to a planned maintenance, check that event is of the correct subclass ([344](https://github.com/Uninett/zino/issues/344))
- Avoid potential state corruption issues by saving the running state to a temporary file before overwriting the existing state file ([364](https://github.com/Uninett/zino/issues/364))
- Properly encode timedelta values as an integer number of seconds in the legacy API

Removed

- Remove test-only commands from API ([286](https://github.com/Uninett/zino/issues/286))

Added

- Add generic Zino config file ([224](https://github.com/Uninett/zino/issues/224))
- Add most important SNMP trap handlers
- Port basic link trap handling from Zino 1
- Add port flapping detection to link trap transition handlers, in accordance with Zino 1 ([284](https://github.com/Uninett/zino/issues/284))
- Schedule re-verification of port states after link traps are received
- Handle incoming Juniper BGP traps ([291](https://github.com/Uninett/zino/issues/291))
- Update BFD session information on incoming BFD session traps ([305](https://github.com/Uninett/zino/issues/305))
- Add planned maintenance feature ([61](https://github.com/Uninett/zino/issues/61))
- Add the `PM` family of API commands to manipulate planned maintenance ([298](https://github.com/Uninett/zino/issues/298))
- Add framework support for API "sub-commands", to support the `PM` set of commands. ([274](https://github.com/Uninett/zino/issues/274))
- Add `POLLRTR` API command ([219](https://github.com/Uninett/zino/issues/219))
- Add `POLLINTF` API command ([300](https://github.com/Uninett/zino/issues/300))
- Add a dummy `CLEARFLAP` API command in order not to crash older clients
- Add `zinoconv` program for converting state from Zino 1 to Zino 2 ([66](https://github.com/Uninett/zino/issues/66))
- Add support for `neigh_rdns` attribute in BFD events. ([199](https://github.com/Uninett/zino/issues/199))
- Add more tests for event deletion ([209](https://github.com/Uninett/zino/issues/209))
- Fix log message on initial Juniper chassis alarm ([213](https://github.com/Uninett/zino/issues/213))
- Add towncrier to automatically produce changelog ([218](https://github.com/Uninett/zino/issues/218))
- Fully support multi-varbind SNMP-GET operations ([303](https://github.com/Uninett/zino/issues/303))
- Add tests to show that one will not get closed events using `get_or_create_event()`
- Index recently closed events to facilitate updating of prematurely closed flapping events

Changed

- Handle errors from changed SNMP interface in Juniper alarm task ([212](https://github.com/Uninett/zino/issues/212))

Fixed

- Improve error reporting, including line/block location, for `polldevs.cf` parsing errors ([248](https://github.com/Uninett/zino/issues/248))
- Properly handle Juniper devices without SNMP values for red/yellow alarm count ([231](https://github.com/Uninett/zino/issues/231))
- Properly handle "varbind" error values for SNMP v2 GET operations ([261](https://github.com/Uninett/zino/issues/261))
- API now listens to all interfaces, not just loopback ([285](https://github.com/Uninett/zino/issues/285))
- Resolve value types of incoming SNMP traps correctly ([290](https://github.com/Uninett/zino/issues/290))
- Ensure polling single interfaces does not crash in the event of timeout errors
- Ensure polling single interfaces works for `ifindex=0`

Added

- SNMP traps can now be received, logged and ignored (although no useful
handlers have been implemented yet)
(([189](https://github.com/Uninett/zino/pull/189),
[193](https://github.com/Uninett/zino/pull/193))
- Closed events now properly expire and are evicted from the running state
after 8 hours ([203](https://github.com/Uninett/zino/pull/203)).
- Expired events are dumped to separate JSON files in the `old-events/`
directory ([204](https://github.com/Uninett/zino/pull/204)).

Fixed

- BGP events are now presented with correctly named attributes in the legacy
API ([172](https://github.com/Uninett/zino/issues/172))
- BGP task no longer crashes on unexpected SNMP responses while probing for
which BGP MIB to use for a device ([184](https://github.com/Uninett/zino/issues/184))
- Legacy API now correctly hides closed events ([192](https://github.com/Uninett/zino/issues/192))
- Legacy API now correctly denies re-opening of closed events ([201](https://github.com/Uninett/zino/issues/201))
- BFD events now have the expected `lastevent` attribute ([200](https://github.com/Uninett/zino/issues/200))
- Fixed potential bug with how `portstate` events are indexed internally in
Zino's running state ([206](https://github.com/Uninett/zino/issues/206))
- API now responds with a proper message on user authentication failures
([210](https://github.com/Uninett/zino/pull/210))

Changed

- Functions for parsing the many ways IP addresses are represented in SNMP MIBs
have been consolidated into a single function ([183](https://github.com/Uninett/zino/issues/183))

This is the first official release of Zino 2.