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CHANGELOG.md

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Changelog

All notable changes to PyHSS are documented in this file, beginning from Service Overhaul #168.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

1.0.2 - 2024-07-03

Added

  • Configurable DWRs sendable to connected peers.
  • Configurable outbound roaming rules on a per-network and per-subscriber basis.
  • /pcrf/clr_subscriber for ease of use.
  • Support for OCS webhook notifications on CCR-I and CCR-T.

Fixed

  • Removed '+' from MSISDNs when storing in the database.
  • CCR-based logical bug when emergency attach procedure is performed.
  • Repeated ECRs leaking open SQL sessions.
  • Forced string evaluation for tacDatabasePath.

1.0.1 - 2024-01-23

Removed

  • Assert on missing "IMS Services" for AAA/Audio Request

Changed

  • Reduced verbosity of failing subscriber lookups to debug
  • Added CORS headers: Zarya/171
  • Gx RAR now dynamically creates TFT up to 512k based on UE request.
  • SQN Resync now propogates via Geored when enabled
  • Renamed sh_profile to xcap_profile in ims_subscriber
  • Rebuilt keys using unique namespace for redis-sentinel / stateless compatibility.

Fixed

  • Geored failing when multiple peers defined and socket closes.
  • Error in Update_Serving_MME when supplied with a NoneType timestamp.

Added

  • Support for CLR-based PCSCF restoration via /pcrf/pcscf_restoration and /pcrf/pcscf_restoration_subscriber in API.
  • Optional immediateReattach parameter in Request_16777251_317, via CLR-Flags
  • Sh-IMS-Data and IMSPrivateUserIdentity to default_sh_user_data.xml
  • Optional config parameter api.enable_insecure_auc to allow retrieval of AuC keys through API
  • sh_template_path in ims_subscriber
  • generateUpgade.sh for generating alembic upgrade scripts
  • Control of outbound roaming S6a AIR and ULA responses through roaming_rule and roaming_network objects.
  • Roaming management on a per-subscriber basis, through subscriber.roaming_enabled and subscriber.roaming_rule_list.
  • Support for Gx and Rx auth of unknown subscribers attaching via SOS.
  • Preliminary support for SCTP.
  • Additional prometheus metrics.

1.0.0 - 2023-09-27

Added

  • Systemd service files for PyHSS services
  • /oam/diameter_peers endpoint
  • /oam/deregister/{imsi} endpoint
  • /geored/peers endpoint
  • /geored/webhooks endpoint
  • Dependency on Redis 7 for inter-service messaging
  • Significant performance improvements under load
  • Basic Rx support for RAA, AAA, ASA and STA
  • Rx MO call flow support (AAR -> RAR -> RAA -> AAA)
  • Dedicated bearer setup and teardown on Rx call
  • Asymmetric geored support
  • Configurable redis connection (Unix socket or TCP)
  • Basic database upgrade support in tools/databaseUpgrade
  • PCSCF state storage in ims_subscriber
  • (Experimental) Working horizontal scalability

Changed

  • Split logical functions of PyHSS into 6 service processes
  • Logtool no longer handles metric processing
  • Updated config.yaml
  • Gx CCR-T now flushes PGW / IMS data, depending on Called-Station-Id
  • Benchmarked capability of at least ~500 diameter requests per second with a response time of under 2 seconds on a local network.

Fixed

  • Memory leaking in diameter.py
  • Gx CCA now supports apn inside a plmn based uri
  • AVP_Preemption_Capability and AVP_Preemption_Vulnerability now presents correctly in all diameter messages
  • Crash when webhook or geored endpoints enabled and no peers defined
  • CPU overutilization on all services

Removed

  • Multithreading in all services, except for metricService