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|
{ cfg, config, lib, pkgs, ... }:
let
inherit (lib) concatStrings singleton;
tinc = cfg.tincPackage;
hostsType = builtins.typeOf cfg.hosts;
hosts =
if hostsType == "package" then
# use package as is
cfg.hosts
else if hostsType == "path" then
# use path to generate a package
pkgs.stdenv.mkDerivation {
name = "custom-retiolum-hosts";
src = cfg.hosts;
installPhase = ''
mkdir $out
find . -name .git -prune -o -type f -print0 | xargs -0 cp --target-directory $out
'';
}
else
abort "The option `services.retiolum.hosts' must be set to a package or a path"
;
iproute = cfg.iproutePackage;
retiolumExtraHosts = import (pkgs.runCommand "retiolum-etc-hosts"
{ }
''
generate() {
(cd ${hosts}
printf \'\'
for i in `ls`; do
names=$(hostnames $i)
for j in `sed -En 's|^ *Aliases *= *(.+)|\1|p' $i`; do
names="$names $(hostnames $j)"
done
sed -En '
s|^ *Subnet *= *([^ /]*)(/[0-9]*)? *$|\1 '"$names"'|p
' $i
done | sort
printf \'\'
)
}
case ${cfg.generateEtcHosts} in
short)
hostnames() { echo "$1"; }
generate
;;
long)
hostnames() { echo "$1.${cfg.network}"; }
generate
;;
both)
hostnames() { echo "$1.${cfg.network} $1"; }
generate
;;
*)
echo '""'
;;
esac > $out
'');
confDir = pkgs.runCommand "retiolum" {
# TODO text
executable = true;
preferLocalBuild = true;
} ''
set -euf
mkdir -p $out
ln -s ${hosts} $out/hosts
cat > $out/tinc.conf <<EOF
Name = ${cfg.name}
Device = /dev/net/tun
Interface = ${cfg.network}
${concatStrings (map (c : "ConnectTo = " + c + "\n") cfg.connectTo)}
PrivateKeyFile = ${cfg.privateKeyFile}
EOF
# source: krebscode/painload/retiolum/scripts/tinc_setup/tinc-up
cat > $out/tinc-up <<EOF
host=$out/hosts/${cfg.name}
${iproute}/sbin/ip link set \$INTERFACE up
addr4=\$(sed -n 's|^ *Subnet *= *\(10[.][^ ]*\) *$|\1|p' \$host)
if [ -n "\$addr4" ];then
${iproute}/sbin/ip -4 addr add \$addr4 dev \$INTERFACE
${iproute}/sbin/ip -4 route add 10.243.0.0/16 dev \$INTERFACE
fi
addr6=\$(sed -n 's|^ *Subnet *= *\(42[:][^ ]*\) *$|\1|p' \$host)
${iproute}/sbin/ip -6 addr add \$addr6 dev \$INTERFACE
${iproute}/sbin/ip -6 route add 42::/16 dev \$INTERFACE
EOF
chmod +x $out/tinc-up
'';
user = cfg.network + "-tinc";
in
{
environment.systemPackages = [ tinc hosts iproute ];
networking.extraHosts = retiolumExtraHosts;
systemd.services.retiolum = {
description = "Tinc daemon for Retiolum";
after = [ "network.target" ];
wantedBy = [ "multi-user.target" ];
path = [ tinc iproute ];
serviceConfig = {
# TODO we cannot chroot (-R) b/c we use symlinks to hosts
# and the private key.
ExecStart = "${tinc}/sbin/tincd -c ${confDir} -d 0 -U ${user} -D";
SyslogIdentifier = "retiolum-tincd";
};
};
users.extraUsers = singleton {
name = user;
uid = 2961822815; # bin/genid retiolum-tinc
};
}
|
