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                         OPENAIR-CN-5G

An implementation of the 5G Core network by the OpenAirInterface community.

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OPENAIR-CN-5G is an implementation of the 3GPP specifications for the 5G Core Network. At the moment, it contains the following network elements:

• Access and Mobility Management Function (AMF)
• Authentication Server Management Function (AUSF)
• Location Management Function (LMF)
• Network Exposure Function (NEF)
• Network Slicing Selection Function (NSSF)
• Network Repository Function (NRF)
• Network Data Analytics Function (NWDAF)
• Policy Control Function (PCF)
• Session Management Function (SMF)
• Unified Data Management (UDM)
• Unified Data Repository (UDR)
• Unstructured Data Storage Function (UDSF)
• User Plane Function (UPF)

Each has its own repository: this repository (oai-cn5g-smf) is meant for SMF.

Licence info

The source code is distributed under Collaborative Standards Software License v1.0 (CSSL v1.0). For more details, visit the OAI Website.

The full text of Collaborative Standards Software License v1.0 is also included in the LICENSE file at the root of this repository.

Certain files in the repository are using MIT License and documentation is distributed under Creative Commons Attribution 4.0 International license.

For third-party softwares, please refer to the NOTICE file.

Collaborative Development

This source code is hosted and maintained on GitHub, enabling collaborative development and contribution:

• Repository: https://github.com/openairinterface/oai-cn5g-smf

Contribution guidelines and development workflows are described in the CONTRIBUTING file.

For information about supported features and capabilities, see the Feature Set.

Contribution Requests

Anyone is welcome to contribute to any part of the codebase and any network component.

Contributions can include bug fixes, suggestions, design and architecture improvements, as well as feedback on coding and implementation.

Release Notes

They are available on the CHANGELOG file.

openair-cn5g-smf
├── 3gpp-specs:    Directory containing 3GPP specification files (YAML) used to implement SMF network function.
├── build:         Build directory, contains targets and object files generated by compilation of network functions.
    ├── log:       Directory containing build log files.
    ├── scripts:   Directory containing scripts for building network functions.
    └── smf:       Directory containing CMakeLists.txt and object files generated by compilation of SMF network function.
├── ci-scripts:    Directory containing the script files for CI framework.
├── docs:          Directory containing the documentation files.
├── etc:           Directory containing the configuration file to be deployed for SMF.
└── src:           Source files of SMF.
    ├── api-server: SMF services APIs.
    ├── common:    Common header files
    │   ├── msg:   ITTI messages definitions.
    │   └── utils: Common utilities.
    ├── itti:      Inter task interface.
    ├── nas:       NAS protocol implememtation.
    ├── ngap:      NGAP protocol implememtation.
    ├── oai_smf:   SMF main directory, contains the "main" CMakeLists.txt file.
    ├── pfcp:      Generic PFCP stack implementation.
    ├── smf_app:   SMF network functions procedures and contexts.
    └── udp :      UDP server implementation.