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SvxReflector: Unterschied zwischen den Versionen

Visuell
Zeile 100: Zeile 100:
 
</syntaxhighlight>Damit sich Clients verbinden können ist auch auf der Clientseite eine entsprechende Konfiguration notwendig:
 
</syntaxhighlight>Damit sich Clients verbinden können ist auch auf der Clientseite eine entsprechende Konfiguration notwendig:
  
−
TODO
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Der Ablauf ist dabei folgender (Quelle: https://groups.io/g/svxlink/topic/certificate_authentication/107698563)
 +
 
 +
=== Reflector side ===
 +
 
 +
# The reflector is started
 +
# Checks if there already is a valid root CA key and cert (private/svxreflector_root_ca.key, certs/svxreflector_root_ca.crt). If not, generate those files. The root CA certificate is self-signed.
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# Checks if there already is a valid issuing CA key, csr and cert (private/svxreflector_issuing_ca.key, csrs/svxreflector_issuing_ca.csr, certs/svxreflector_issuing_ca.crt). If not, generate those files. The issuing CA certificate is signed using the root CA.
 +
# Checks if there is a server key, csr and cert for the reflector (private/myreflector.org.key, csrs/myreflector.org.csr, certs/myreflector.org.crt). If not, generate those files and sign the server certificate using the issuing CA.
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# Checks if there is a ca-bundle.crt file. If not, copy the root CA certificate file to ca-bundle.crt.
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# When a CSR is received from a node it is stored in pending_csrs
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# When the sysop issue the sign command, sign a CSR in the pending_csrs directory. Move the CSR to the csrs directory and store the signed certificate in the certs directory. When the node connects or already is connected, send the certificate to the node.
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=== Node side ===
 +
 
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# The SvxLink node is started
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# Checks if there already is key- and csr-files (CALL.key, CALL.csr). If not, generates them.
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# Connects to the reflector
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# Checks if there already is a ca-bundle.crt. If not, downloads it from the reflector server.
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# Initiates encrypted connection
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# Verifies the reflector server certificate against ca-bundle.crt
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# Verifies that the hostname used to connect to the reflector match the hostname (CN) in the certificate
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# If there already is a crt-file (CALL.crt), sends it to the reflector to authenticate. If not, sends the CSR to the reflector. The reflector will store the CSR in the pending_csrs directory.
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# If the reflector has a signed node certificate (CALL.crt), sends it to the node. The node will then disconnect and reconnect authenticating using the certificate.
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# Retry if failed.
  
 
==== Konfiguration ====
 
==== Konfiguration ====

Version vom 4. Februar 2025, 17:37 Uhr

Installation

Svxreflector 1.0 ist in Debian 12 enthalten. Talkgroups werden erst ab Version 2.0 unterstützt. Aktuell ist inzwischen Version 3.0, diese ist allerdings nicht mit Version 2.0 kompatibel, dh. svxlink mit der Version 3.0 kann sich nicht mit einem svxreflector der Version 2.0 verbinden.

Die folgende Anleitung gilt für Debian und Derivate (etwa Raspberry Pi OS) und erzeugt neben svxlink ( Repeater-Software) auch sxvreflector (Vernetzungs-Software).

Svxlink-Code aus Github clonen

cd /opt
apt -y install git
git clone https://github.com/sm0svx/svxlink
cd svxlink/
cat INSTALL.adoc

Fehlende Pakete installieren

(hier für Debian 12)

apt -y install build-essential cmake doxygen pkg-config \
libsigc++-2.0-dev libasound2-dev libspeex-dev libopus-dev libogg-dev \
libpopt-dev libgcrypt20-dev libgpiod-dev librtlsdr-dev libjsoncpp-dev \
tcl-dev libgsm1-dev libcurl4-openssl-dev groff libssl-dev

Build

entsprechend INSTALL.adoc:

  cd src
  mkdir build
  cd build
  # QT4 not in Debian 12  (only QT5), skip QT UI
  # cmake .. -DUSE_QT=NO
  # Debian-style variant with further options set
  cmake -DCMAKE_INSTALL_PREFIX=/usr -DSYSCONF_INSTALL_DIR=/etc -DLOCAL_STATE_DIR=/var -DUSE_QT=OFF -DWITH_SYSTEMD=yes ..
  
  make
  make doc
  useradd svxlink
  # usermod -a svxlink -G gpio
  sudo usermod -a svxlink  -G audio
  sudo make install
  sudo ldconfig

Nun sollte sowohl svxlink, wie auch svxreflector verfügbar sein.


Migration von svxreflector 2.0 auf 3.0


Seit der Version 3.0 ist eine Public-Key-Infrastructure (PKI) aufbauend auf OpenSSL enthalten.

Dazu muss ein Zertifikat erstellt werden, die passiert automatisch wenn der Hostname (COMMON_NAME) in der Konfiguration (svxreflector.conf) enthalten ist: 

# version 3.0
[SERVER_CERT]
COMMON_NAME=svx.oe3xnr.hamip.at

Der Common-Name kann über die IP-Adresse in der HamnetDB abgefragt werden. Zur Ausgabe der Hamnet-DB ist ".hamip.at" hinzuzufügen. Beim Start wird die erfolgreiche Erstellung des Zertifikats angezeigt:

Tue 04 Feb 2025 05:29:38 PM CET: SvxReflector v1.2.99.26@24.02-71-gcf2ce04b Copyright (C) 2003-2025 Tobias Blomberg / SM0SVX
Tue 04 Feb 2025 05:29:38 PM CET:
Tue 04 Feb 2025 05:29:38 PM CET: SvxReflector comes with ABSOLUTELY NO WARRANTY. This is free software, and you are
Tue 04 Feb 2025 05:29:38 PM CET: welcome to redistribute it in accordance with the terms and conditions in the
Tue 04 Feb 2025 05:29:38 PM CET: GNU GPL (General Public License) version 2 or later.
Tue 04 Feb 2025 05:29:38 PM CET:
Tue 04 Feb 2025 05:29:38 PM CET: Using configuration file: /etc/svxlink/svxreflector.conf
Tue 04 Feb 2025 05:29:38 PM CET: ----------- Root CA Certificate ------------
Tue 04 Feb 2025 05:29:38 PM CET: Serial No.       : 0x7F875321F6F7ACE0C8A4F2374D130F6DB71D5176
Tue 04 Feb 2025 05:29:38 PM CET: Issuer           : CN = SvxReflector Root CA
Tue 04 Feb 2025 05:29:38 PM CET: Subject          : CN = SvxReflector Root CA
Tue 04 Feb 2025 05:29:38 PM CET: Not Before       : Tue Feb  4 17:00:19 2025
Tue 04 Feb 2025 05:29:38 PM CET: Not After        : Sat Jan 29 17:00:19 2050
Tue 04 Feb 2025 05:29:38 PM CET: --------------------------------------------
Tue 04 Feb 2025 05:29:38 PM CET: ---------- Issuing CA Certificate ----------
Tue 04 Feb 2025 05:29:38 PM CET: Serial No.       : 0x47DD2DC96697A6DB5263A95688582C33D57B2F0B
Tue 04 Feb 2025 05:29:38 PM CET: Issuer           : CN = SvxReflector Root CA
Tue 04 Feb 2025 05:29:38 PM CET: Subject          : CN = SvxReflector Issuing CA
Tue 04 Feb 2025 05:29:38 PM CET: Not Before       : Tue Feb  4 17:00:19 2025
Tue 04 Feb 2025 05:29:38 PM CET: Not After        : Fri Jan 30 17:00:19 2026
Tue 04 Feb 2025 05:29:38 PM CET: --------------------------------------------
Tue 04 Feb 2025 05:29:38 PM CET: Server private key file not found. Generating '/var/lib/svxlink/pki/private/svx.oe3xnr.hamip.at.key'
Tue 04 Feb 2025 05:29:38 PM CET: Generating server certificate signing request file '/var/lib/svxlink/pki/csrs/svx.oe3xnr.hamip.at.csr'
Tue 04 Feb 2025 05:29:38 PM CET: -------- Certificate Signing Request -------
Tue 04 Feb 2025 05:29:38 PM CET: Subject          : CN = svx.oe3xnr.hamip.at
Tue 04 Feb 2025 05:29:38 PM CET: Subject Alt Name : DNS:svx.oe3xnr.hamip.at
Tue 04 Feb 2025 05:29:38 PM CET: --------------------------------------------
Tue 04 Feb 2025 05:29:38 PM CET: Generating server certificate file '/var/lib/svxlink/pki/certs/svx.oe3xnr.hamip.at.crt'
Tue 04 Feb 2025 05:29:38 PM CET: ------------ Server Certificate ------------
Tue 04 Feb 2025 05:29:38 PM CET: Serial No.       : 0x5DCFD4727D7A3C6D749173D0561F747CC7918456
Tue 04 Feb 2025 05:29:38 PM CET: Issuer           : CN = SvxReflector Issuing CA
Tue 04 Feb 2025 05:29:38 PM CET: Subject          : CN = svx.oe3xnr.hamip.at
Tue 04 Feb 2025 05:29:38 PM CET: Not Before       : Tue Feb  4 17:29:38 2025
Tue 04 Feb 2025 05:29:38 PM CET: Not After        : Mon May  5 18:29:38 2025
Tue 04 Feb 2025 05:29:38 PM CET: Subject Alt Name : DNS:svx.oe3xnr.hamip.at
Tue 04 Feb 2025 05:29:38 PM CET: --------------------------------------------

Damit sich Clients verbinden können ist auch auf der Clientseite eine entsprechende Konfiguration notwendig:

Der Ablauf ist dabei folgender (Quelle: https://groups.io/g/svxlink/topic/certificate_authentication/107698563)

Reflector side

  1. The reflector is started
  2. Checks if there already is a valid root CA key and cert (private/svxreflector_root_ca.key, certs/svxreflector_root_ca.crt). If not, generate those files. The root CA certificate is self-signed.
  3. Checks if there already is a valid issuing CA key, csr and cert (private/svxreflector_issuing_ca.key, csrs/svxreflector_issuing_ca.csr, certs/svxreflector_issuing_ca.crt). If not, generate those files. The issuing CA certificate is signed using the root CA.
  4. Checks if there is a server key, csr and cert for the reflector (private/myreflector.org.key, csrs/myreflector.org.csr, certs/myreflector.org.crt). If not, generate those files and sign the server certificate using the issuing CA.
  5. Checks if there is a ca-bundle.crt file. If not, copy the root CA certificate file to ca-bundle.crt.
  6. When a CSR is received from a node it is stored in pending_csrs
  7. When the sysop issue the sign command, sign a CSR in the pending_csrs directory. Move the CSR to the csrs directory and store the signed certificate in the certs directory. When the node connects or already is connected, send the certificate to the node.

Node side

  1. The SvxLink node is started
  2. Checks if there already is key- and csr-files (CALL.key, CALL.csr). If not, generates them.
  3. Connects to the reflector
  4. Checks if there already is a ca-bundle.crt. If not, downloads it from the reflector server.
  5. Initiates encrypted connection
  6. Verifies the reflector server certificate against ca-bundle.crt
  7. Verifies that the hostname used to connect to the reflector match the hostname (CN) in the certificate
  8. If there already is a crt-file (CALL.crt), sends it to the reflector to authenticate. If not, sends the CSR to the reflector. The reflector will store the CSR in the pending_csrs directory.
  9. If the reflector has a signed node certificate (CALL.crt), sends it to the node. The node will then disconnect and reconnect authenticating using the certificate.
  10. Retry if failed.

Konfiguration

Nachdem svxreflector.conf angepasst ist. können sich Nodes (svxlink-Repeater) verbinden: 

 1Sun Oct  8 11:57:06 2023: ReflectorLogic: Authentication OK
 2Sun Oct  8 11:57:06 2023: ReflectorLogic: Connected nodes: OE3XNR
 3Sun Oct  8 11:57:06 2023: ------ Opus encoder parameters ------
 4Sun Oct  8 11:57:06 2023: Frame size           = 320
 5Sun Oct  8 11:57:06 2023: Complexity           = 9
 6Sun Oct  8 11:57:06 2023: Bitrate              = 20000
 7Sun Oct  8 11:57:06 2023: VBR                  = YES
 8Sun Oct  8 11:57:06 2023: Constrained VBR      = YES
 9Sun Oct  8 11:57:06 2023: Maximum audio bw     = MEDIUMBAND
10Sun Oct  8 11:57:06 2023: Audio bw             = FULLBAND
11Sun Oct  8 11:57:06 2023: Signal type          = VOICE
12Sun Oct  8 11:57:06 2023: Application type     = AUDIO
13Sun Oct  8 11:57:06 2023: Inband FEC           = NO
14Sun Oct  8 11:57:06 2023: Expected Packet Loss = 0%
15Sun Oct  8 11:57:06 2023: DTX                  = NO
16Sun Oct  8 11:57:06 2023: LSB depth            = 16
17Sun Oct  8 11:57:06 2023: --------------------------------------
18Sun Oct  8 11:57:06 2023: ------ Opus decoder parameters ------
19Sun Oct  8 11:57:06 2023: Gain       = 0dB
20Sun Oct  8 11:57:06 2023: --------------------------------------
21Sun Oct  8 11:57:06 2023: ReflectorLogic: Using audio codec "OPUS"

Für die Nutzung von svxreflector ist eine aktuelle Version der Sprachdateien am Repeater (also bei svxlink) notwendig, zuletzt wurden folgende Sprachdateien ergänzt: 

- Core/talk_group
- Core/qsy
- Core/ignored
- Core/monitor
- Default/previous

Diese Dateien sind auch im Download verfügbar.

Abgerufen von „https://wiki.oevsv.at/w/index.php?title=SvxReflector&oldid=22628“

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