erGW - 3GPP GGSN and PDN-GW in Erlang

Version 3.0.0 - 25 June 2021

Features 🚀

#408 Update alpine to 3.14 for Dockerfile
#405 New IP assignment, random init, fifo reuse of IP
#404 Add PSDBU part or the EPFAR feature
#393 Add NAT to the TDF function
#357 Add PFPC User ID to Session Establishment Request
#365 Add UP Feature checking

Bugfixes 🐛

#402 Bump gtp and pfcp lib to normalize FQDNs on ingres
#391 Handle timeout in PFCP send
#356 Fix PFCP control during HSS Initiated Subscribed QoS Modification

Improvements 💡

#354 Refactor application split and with it also config handling

Version 2.8.14 - 3 June 2021

Bugfixes 🐛

#401 Lowercase APN expansion

Version 2.8.13 - 1 June 2021

Bugfixes 🐛

#395 Lowercase APN before further processing it

Version 2.8.12 - 31 May 2021

Improvements 💡

#380 Start use image quay.io/travelping/alpine-erlang:23.3.4(the image is included fix for kernel)
#373 Start use master of prometheus(included all speedup fixes)

Bugfixes 🐛

#376 Change normal termination reason

Dependencies ⚙️

#389 Update ergw_aaa tag to 3.6.14

Version 2.8.11 - 23 April 2021

Improvements 💡

#369 Start use fork of prometheus with speedup fix

Version 2.8.10 - 7 April 2021

Bugfixes 🐛

cfdf116 DNS lookup responses with no answer records are not cached

As a temporary fix, the simple DNS cache is used on this patch release.

Version 2.8.9 - 25 March 2021

Improvements 💡

#343 Update alpine to 3.13 for Dockerfile

(C) musl-1.2.1.tar.gz (sig) - August 4, 2020 This release features the new "mallocng" malloc implementation, replacing musl's original dlmalloc-like allocator that suffered from fundamental design problems. Its major user-facing new properties are the ability to return freed memory on a much finer granularity and avoidance of many catastrophic fragmentation patterns. In addition it provides strong hardening against memory usage errors by the caller, including detection of overflows, double-free, and use-after-free, and does not admit corruption of allocator state via these errors.

Dependencies ⚙️

#345 Update ergw_aaa tag to 3.6.10
#337 Update pfcplib tag to 2.0.0
#351 Update gtplib tag to 2.0.1

Version 2.8.8 - 9 March 2021

Bugfixes 🐛

#332 Build is broked for OTP 22.3 in ergw 2.8.7
#335 fix statem data corruption in S5/S8 proxy

Features 🚀

#331 implement a "real" DNS response cache
#333 Remove prefix v from image tag
#341 Udpate OTP image to 23.2.7
#334 add UP VTIME feature support

Version 2.8.7 - 26 February 2021

Bugfixes 🐛

#326 Return proper sender TEID when rejecting new sessions
#327 Use Bearer QoS from session in Create Session Response
#325 Switch to rand:uniform/1 for SEID generation

Version 2.8.6 - 4 February 2021

Documentations 📚

#318 Add path_management to README

Dependencies ⚙️

#319 Update ergw_aaa tag to 3.6.9

Improvements 💡

#310 Shuffle the config loading to make it available earlier

Refactorings 🔥

#313 Remove /metrics from Swagger definitions

Features 🚀

#315 Implement configurable GTP path ICMP error behaviour
#306 Implement configurable GTP RTT metrics interval

Version 2.8.5 - 29 January 2021

Dependencies ⚙️

#308 Update ergw_aaa tag to 3.6.8

Features 🚀

#304 Multiarch build support on Travis and GitLab-CI

Bugfixes 🐛

#298 Remove non use option and fix dev-sx.config

Version 2.8.4 - 26 January 2021

Bugfixes 🐛

#296 Fix reliably delete PFCP session

Version 2.8.3 - 22 January 2021

Documentations 📚

#285 Add missing decription of PFCP metrics

Dependencies ⚙️

#292 Update ergw_aaa tag to 3.6.7
#291 Update prometheus_diameter_collector tag to 1.2.0

Improvements 💡

#293 PFCP reduce log output

Refactorings 🔥

#289 Remove dotfiles
#290 Remove diagrams

Features 🚀

#278 Add global node_id config setting and use it in PFCP
#279 Replace context key tuples with records
#283 Configurable retry timings for SMF / UPF heartbeats
#286 Added PFCP Sx association metric
#294 Change socket config split_sockets to send_port

Bugfixes 🐛

#282 Fix online charging URR link

Version 2.8.2 - 10 December 2020

CT: change the nested groups in the GTP suites - PR #276
A collection of small CT fixes - PR #274
Use random udp source port for GTP-C requests - PR #273
Fix reading from socket error queue - PR #272
Updated ergw_aaa tag to 3.6.4 - PR #271
Improve session termination reason handling - PR #271
Add miss test case of proxy_lib_SUITE - PR #270

Version 2.8.1 - 25 November 2020

Bump OTP to 23.1.2.0 and 22.3.4.12
Fix issue #245: provided correct config example of sockets section
Remove sx_socket option because sx socket is now handled in the sockets section of ergw
Fix proxy gw selection when a gw is down
Fix issue #133 for correct display of IPv4 and IPv6

Version 2.8.0 - 16 November 2020

Refactor handler contexts
Implement UP based TEID assignment
Remove reliance on User Plane IP Resource Information IE
Update ergw_aaa tag to 3.6.2
Fix Common Tests
Handle timeouts create session/pdp_context requests
Extend delete contexts REST API for delete all contexts: /api/v1/contexts

Version 2.7.2 - 5 November 2020

Update prometheus_diameter_collector tag to 1.0.1 for handle discarded answers in the diameter stats
Added SemVer for erGw for skip step of change rebar.config each time when version of project will update.

Version 2.7.1 - 28 October 2020

Update ergw_aaa tag to 3.6.1

Version 2.7.0 - 26 October 2020

Added termination cause mapping
Fixed broken ergw-c-node.config
Update ergw_aaa tag to 3.6.0

Version 2.6.1 - 08 October 2020

fix resource leak in TEI mngr
fix path maintenace, attempts to contact a peer where resetting that peer state to UP

Version 2.6.0 - 02 October 2020

feature: provide implementation for DELETE /api/v1/contexts/:count for GTP-Proxy setups ("drain")
feature: configurable TEID prefix to use
feature: async IP assignment for IPv4 and IPv6
feature: simple cache for Node Selection results based upon DNS queries
fix handling DNS responses without IP in Sx node selection (would shutdown of ergw)
fix Change Reporting Indication/Action (Offline Charging)
fix encoding of IE 'Indication'
improve GTP Path Maintenance procedures. NOTE: In GTP proxy use of ergw the path maintenance now stops forwarding traffic to a non-responsive target PGW after it detects, based on GTP echo probes, that it is not reachable. The PGW path is blocked for a configurable duration (default 1 hour) for forwarding. The configuration of the duration is done with the down_timeout parameter of the path_management section in the node config (see: config/ergw-c-node.config for example)
unify socket definition. NOTE: this requires changes to the configuration of ergw: sx_socket is removed from the ergw configuration, sx socket is now handled in the sockets section of ergw. See config/ergw-c-node.config for an example.
switch to Erlang/OTP 23.1
increase test coverage

Version 2.5.0 - 04 August 2020

implement path monitoring profiles for outgoing (active) paths
bump ergw_aaa dependency to 3.5.0 to support
state stats and diameter avp filters
bump prometheus_diameter_collector to report internal plain error counters in the same manner as the diameter result codes.
upgrade to OTP-23.0.3

Version 2.4.3 - 26 May 2020

fix handling context attribute of ProxyMap response
fix netdev configuration option
switch to Erlang/OTP 23.0 as base runtime

Version 2.4.2 - 11 May 2020

bump ergw_aaa for request tracking changes, fixes accounting of outstanding requests
fix GTP path failure detection

Version 2.4.1 - 30 Apr 2020

test enhancements
handle UPF removal/failure in proxy case
make offline URR generation dependent on global setting
use seperate socket in PFCP server of send and recv

Version 2.4.0 - 17 Apr 2020

Offline Charging (Rf):
- include Traffic-Data-Volumes
- add Time of First/Last packet
support different rating groups for online and offline charging in the same PCC rule (split charging)
implemented RFC/3GPP compliant selection of NAPTR records by preference
added late A/AAAA resolution of NAPTR/SRV pointers
update gtplib to fix a few corner cases in GTP encoding
fix GTPv1 cause code encoding
switch from gen_socket to Erlang native socket.erl for GTP-C and PFCP
upgrade eradius (through ergw_aaa) for async, retries and timeout option
proxy mode config fixes
experimental support for Erlang/OTP 23.0

Version 2.3.0 - 24 Feb 2020

RADIUS is fixed and under CI
UP Inactviity Timer feature add, use for session idle timeout
Support 5G (and WiFi offload) Secondary RAT Usage Data Reporting
rework dual address bearer support to actually conform to the specs
implemented 5G Nsbf_Management API
reselect UPF node based on outcome of authentication
added PFCP metrics
better support permanent Sx nodes (config change)
multi UPF support
switch from lager to Erlang logger

Version 2.2.0 - 26 Nov 2019

new load control framework in ergw_aaa
corrected OCS free behavior
NASREQ Authentication and Accounting
docker images moved to quay.io
TDF
(very) improved Gx PCC handling
Gx RAR support
replace exometer with prometheus.io exporter

Version 2.1.0 - 12 Aug 2019

Support Erlang OTP 21.3 through 22.0
stabilize CUPS support
beta quality DIAMETER Gx, Gy and Rf support
many bug fixes (see git log)

Version 2.0.0 - 02 Aug 2018

Rewrite user plane interface to use control and user plane separation of EPC nodes (CUPS) architecture, compatible UPF implementation
Drop tetrapak build support
Support Erlang OTP 20.1 through 21.0
Implement NAPTR based node selection
IPv6 control and user plane support
Beta quality features:
- S11 / SAE-GW

Version 1.16.0 - 03 Oct 2017

change Modify Bearer Request SGW change detection for RAU/TAU/HO
change session collision detection to take only IMSI or IMEI, not both
implement destination port handling for GTPv2-C triggered request

Version 1.15.0 - 29 Aug 2017

GGSN outgoing load balancing in proxy mode
fix context path counters
make sure colliding session are terminated before the new session is registered (avoiding a race)
handle access point names as DNS labels (make them case insensitive)
decouple sequence numbers in proxy mode again (fixes bug introduced in last release)

Version 1.14.0 - 04 Aug 2017

properly clean DP context on shutdown
catch duplicate context registration
remove colliding tunnels when a new context is created (mandated by 3GPP procedures)
implement 3GPP TS 23.401, Sect. 5.4.2.2, HSS Initiated Subscribed QoS Modification

Version 1.13.1 - 12 Jul 2017

fix handling of freebind and netdev socket options

Version 1.13.0 - 11 Jul 2017

add rate limiting for incoming requests, the default is 100 req/s
upgrade gtplib, fix PCO's with vendor extensions
fix handling of IP's in metrics names
Serve Prometheus metrics on /metrics
populate missing version field on request
fix resend behaviour in proxy mode
support Erlang 20.0
optimise GTP message encoding

Version 1.12.0 - 21 Jun 2017

add more metrics and export them through HTTP API
enhance the config validation
change the handler configuration to be inline with the documentation
enhance the proxy DS API
add HTTP status API

Version 1.11.0 - 27 Apr 2017

GTP context no longer crashes when error replies do not contain mandatory IEs
unify translation logic in proxy mode
more unit test

Version 1.10.0 - 18 Apr 2017

fix path restart when multiple context are active
better directional filtering of Request/Responses in proxy mode
added some more test for proxy functions

Version 1.9.0 - 05 Apr 2017

extensive unit tests for GGSN, PGW and proxy modes
fix QoS IE encoding for extended bit rates
fix path restart behavior
implement GTPv2 messages:
- Change Notification Request
- Delete Bearer Request
- Modify Bearer Command
implement GTPv1 messages:
- MS Info Change Notification Request
- SGSN initiated Update PDP Context Request
- GGSN initiated Delete PDP Context Request
drop S2a support (will be readded later)

Version 1.8.0 - 24 Mar 2017

support more message types in GTPv2 proxy
fix TEID translation GTPv2 proxy
fix retransmit timer handling for the proxy case
added basic test suite for PGW
(experimental) support for IPv6 as transport for GTP (not as payload)

Version 1.7.0 - 24 Feb 2017

more fixes for the GTPv2 proxy, not yet working
fix retransmission cache timeout bug
add rcvbuf option to sockets
use full sequence number range for GTPv2

Version 1.6.0 - 17 Jan 2017

send end marker on S5/S8 GTP-U tunnels during hand over
properly handle GTP version changes during handover
validate TEID in requests

Version 1.5.0 - 08 Dec 2016

socket are restarted after a crash now
handle GTP v1 and v2 on the same path
use seperate TEID for GTP-C and GTP-U
add configuration for gateways home MCC and MNC
GTP-U error indication is now handled properly
SGW and SGSN handover procedures are working now

Version 1.4.0 - 25 Nov 2016

rework the configuration model, see CONFIG.md for details
preliminary API for exporting runtime state information (unstable, subject to change)
complete S5/S8 interface
initiate Accounting sessin after authentication

Version 1.3.0 - 03 Nov 2016

extend error message on send failures
use TEI from updated context for PDP Update Response
rework IP pool handling (configuration format changed!)

Version 1.2.0 - 02 Nov 2016

JSON data source for proxy mappings
handle GTP-C decoder failures
support session default settings
AAA support for S5/S8

Version 1.1.0 - 21 Oct 2016

fix IP pool handling
replace records in API handler with maps
replace IP allocator with constant time variant
update to gtplib 1.1.0+ API

Version 1.0.0 - 07 Oct 2016

Initial release

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