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Restund

restund - modular STUN/TURN server

Distributed under BSD-3-Clause license

Design goals:

  • Modular STUN/TURN server
  • STUN and TURN support
  • IPv4 and IPv6 support
  • UDP, TCP, TLS and DTLS transport support
  • RFC-compliancy
  • Robust, fast, low footprint
  • Portable C99 and C11 source code

Modular Plugin Architecture:

  • STUN messages: auth binding stat turn
  • Database backend: mysql_ser filedb restauth
  • Server status: status
  • Logging: syslog

IETF RFCs:

  • RFC 5389 - Session Traversal Utilities for NAT (STUN)
  • RFC 5766 - Traversal Using Relays around NAT (TURN): Relay Extensions to Session Traversal Utilities for NAT (STUN)
  • RFC 5780 - NAT Behavior Discovery Using Session Traversal Utilities for NAT (STUN)
  • RFC 6156 - Traversal Using Relays around NAT (TURN) Extension for IPv6
  • RFC 7350 - DTLS as Transport for STUN
  • draft-uberti-behave-turn-rest-00

Building

git clone https://github.com/baresip/re
cd re && cmake -B build && cmake --build build -j
cd ..

git clone https://github.com/baresip/restund
cd restund && cmake -B build && cmake --build build -j

Define modules and static build

cmake -B build -DMODULES="stat;binding;auth;turn;filedb;syslog;status" -DSTATIC=1
cmake --build build -j

Run restund

build/restund -f etc/restund.conf -n -d

See docs for more information.