mirror of https://codeberg.org/CRXN/docs.git
Merge pull request 'add small tutorial how to compile and install babeld' (#32) from mark22k/docs:babeld_compile into master
Reviewed-on: https://codeberg.org/CRXN/docs/pulls/32
This commit is contained in:
Marek Küthe
commit
6474db556d
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# Compile and install babeld
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It may happen that the babeld from the operating system package sources is outdated or no longer current. In this case it is recommended to compile and install babeld yourself.
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## Preparation
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For this you need a C compiler, git and the program make. These can be installed on Debian with the following command:
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```
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sudo apt install build-essential make git
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```
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After that you can clone the babeld Git repo and initialize the submodules. GitHub requires an IPv4 clearnet connection.
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```
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https://github.com/jech/babeld.git
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git submodule update --init --recursive
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```
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## Compilation
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After that you can compile and install babeld with make. With `-j4` you can specify the number of concurrent tasks. Here it is recommended to take the number of CPU cores. In this example there are four.
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```
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make -j4
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sudo make install
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```
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## Installation
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After that you can install various configuration files. This tutorial assumes a Debian-based operating system with systemd. The instructions are based on the configuration files of the Debian package.
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File `/etc/default/babeld`:
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```
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# List of interfaces on which the protocol should operate
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INTERFACES=""
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# Additional arguments
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DAEMON_ARGS="-S /var/lib/babeld/state"
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```
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File `/etc/init.d/babeld`:
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```
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#! /bin/sh
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### BEGIN INIT INFO
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# Provides: babeld
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# Required-Start: $remote_fs $syslog
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# Required-Stop: $remote_fs $syslog
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# Default-Start: 2 3 4 5
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# Default-Stop: 0 1 6
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# Short-Description: Initscript for babeld
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# Description: Babel routing daemon
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### END INIT INFO
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# Author: Stéphane Glondu <glondu@debian.org>
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# Based on /etc/init.d/skeleton from initscripts_2.87dsf-10 and an
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# initscript provided by Juliusz Chroboczek.
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# Do NOT "set -e"
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# PATH should only include /usr/* if it runs after the mountnfs.sh script
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PATH=/sbin:/usr/sbin:/bin:/usr/bin
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DESC="Babel routing daemon"
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NAME=babeld
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DAEMON=/usr/local/bin/$NAME
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PIDFILE=/var/run/$NAME.pid
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SCRIPTNAME=/etc/init.d/$NAME
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# Exit if the package is not installed
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[ -x "$DAEMON" ] || exit 0
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# Read configuration variable file if it is present
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[ -r /etc/default/$NAME ] && . /etc/default/$NAME
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# Exit if there is no interfaces
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if [ -z "$INTERFACES" ]; then
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if [ ! -f /etc/babeld.conf ] || [ $(grep -v '^#' /etc/babeld.conf| wc -l) -eq 0 ]; then
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echo "$DESC: no interfaces to operate on"
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exit 0
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fi
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fi
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# Load the VERBOSE setting and other rcS variables
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. /lib/init/vars.sh
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# Define LSB log_* functions.
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# Depend on lsb-base (>= 3.0-6) to ensure that this file is present.
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. /lib/lsb/init-functions
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do_start()
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{
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# Return
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# 0 if daemon has been started
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# 1 if daemon was already running
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# 2 if daemon could not be started
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start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $DAEMON --test > /dev/null \
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|| return 1
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start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $DAEMON -- \
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-D -I $PIDFILE $DAEMON_ARGS $INTERFACES \
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|| return 2
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# Wait for the daemon to be ready
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sleep 1
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[ -e $PIDFILE ] || sleep 4
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[ -e $PIDFILE ] || return 2
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}
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do_stop()
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{
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# Return
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# 0 if daemon has been stopped
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# 1 if daemon was already stopped
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# 2 if daemon could not be stopped
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# other if a failure occurred
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start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile $PIDFILE --name $NAME
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}
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case "$1" in
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start)
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[ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
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do_start
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case "$?" in
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0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
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2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
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esac
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;;
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stop)
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[ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
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do_stop
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case "$?" in
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0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
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2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
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esac
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;;
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status)
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status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $?
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;;
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restart|force-reload)
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log_daemon_msg "Restarting $DESC" "$NAME"
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do_stop
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case "$?" in
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0|1)
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do_start
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case "$?" in
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0) log_end_msg 0 ;;
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1) log_end_msg 1 ;; # Old process is still running
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*) log_end_msg 1 ;; # Failed to start
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esac
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;;
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*)
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# Failed to stop
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log_end_msg 1
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;;
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esac
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;;
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*)
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echo "Usage: $SCRIPTNAME {start|stop|status|restart|force-reload}" >&2
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exit 3
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;;
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esac
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:
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```
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File `/etc/logrotate.d/babeld`:
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```
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/var/log/babeld.log {
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weekly
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rotate 8
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compress
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missingok
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notifempty
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postrotate
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[ -r /var/run/babeld.pid ] && kill -USR2 $(cat /var/run/babeld.pid)
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endscript
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}
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```
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File `/etc/systemd/system/babeld.service`:
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```
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[Unit]
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Documentation=man:systemd-sysv-generator(8)
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SourcePath=/etc/init.d/babeld
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Description=LSB: Initscript for babeld
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Before=multi-user.target
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Before=graphical.target
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After=remote-fs.target
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[Service]
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Type=forking
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Restart=on-failure
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TimeoutSec=5min
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IgnoreSIGPIPE=no
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KillMode=process
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GuessMainPID=no
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SuccessExitStatus= 5 6
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ExecStart=/etc/init.d/babeld start
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ExecStop=/etc/init.d/babeld stop
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```
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After that you can make the init script executable, load the new Systemd unit and create an empty babeld configuration file:
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```
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chmod +x /etc/init.d/babeld
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systemctl daemon-reload
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touch /etc/babeld.conf
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```
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@ -10,5 +10,6 @@
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## babeld
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- [Setting up Babeld](babeld/babeld)
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- [Compile and install babeld](babeld/compile-install)
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- [max-len filter in babeld](babeld/maxlen-filter)
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- [babelweb2](babeld/babelweb2)
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