tor-box/mkosi.build

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#!/bin/sh
cd
mkdir -p $DESTDIR/etc/systemd/system
cat > $DESTDIR/etc/systemd/system/tor.service <<EOF
[Unit]
Description=Anonymizing overlay network for TCP
After=syslog.target network.target nss-lookup.target
PartOf=tor-master.service
ReloadPropagatedFrom=tor-master.service
[Service]
Type=notify
NotifyAccess=all
ExecStartPre=/usr/bin/tor --runasdaemon 0 -f /etc/tor/torrc.ours --verify-config
ExecStart=/usr/bin/tor --runasdaemon 0 -f /etc/tor/torrc.ours
ExecReload=/bin/kill -HUP \${MAINPID}
KillSignal=SIGINT
TimeoutSec=30
Restart=on-failure
RestartSec=1
WatchdogSec=1m
LimitNOFILE=32768
[Install]
WantedBy = multi-user.target
EOF
mkdir -p $DESTDIR/etc/tor
cat > $DESTDIR/etc/tor/torrc.ours <<EOF
DataDirectory /var/lib/tor
DataDirectoryGroupReadable 1
User debian-tor
Log notice syslog
#Log debug stderr
AutomapHostsOnResolve 1
DNSPort 5353
Log debug stderr
TransPort 9040
VirtualAddrNetworkIPv4 10.192.0.0/10
EOF
cat > $DESTDIR/etc/systemd/system/iptables-restore.service <<EOF
[Unit]
Description=apply iptables rules
After=network.target
[Service]
Type=oneshot
ExecStart=/bin/sh /etc/rc.firewall
[Install]
WantedBy=multi-user.target
EOF
cat > $DESTDIR/etc/rc.firewall <<EOF
### set variables
#destinations you don't want routed through Tor
_non_tor="192.168.1.0/24 192.168.0.0/24"
#the UID that Tor runs as (varies from system to system)
_tor_uid="\$(id -u toranon)"
#Tor's TransPort
_trans_port="9040"
_dns_port="5353"
### flush iptables
iptables -F
iptables -t nat -F
### set iptables *nat
iptables -t nat -A OUTPUT -m owner --uid-owner \$_tor_uid -j RETURN
iptables -t nat -A OUTPUT -p udp --dport 53 -j REDIRECT --to-ports \$_dns_port
#allow clearnet access for hosts in \$_non_tor
for _clearnet in \$_non_tor 127.0.0.0/9 127.128.0.0/10; do
iptables -t nat -A OUTPUT -d \$_clearnet -j RETURN
done
#redirect all other output to Tor's TransPort
iptables -t nat -A OUTPUT -p tcp --syn -j REDIRECT --to-ports \$_trans_port
### set iptables *filter
iptables -A OUTPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
#allow clearnet access for hosts in \$_non_tor
for _clearnet in \$_non_tor 127.0.0.0/8; do
iptables -A OUTPUT -d \$_clearnet -j ACCEPT
done
#allow only Tor output
iptables -A OUTPUT -m owner --uid-owner \$_tor_uid -j ACCEPT
iptables -A OUTPUT -j REJECT
EOF
mkdir -p $DESTDIR/etc/systemd/system/multi-user.target.wants
ln -sf /etc/systemd/system/tor.service $DESTDIR/etc/systemd/system/multi-user.target.wants/tor.service
ln -sf /usr/lib/systemd/system/systemd-networkd.service $DESTDIR/etc/systemd/system/multi-user.target.wants/systemd-networkd.service
mkdir -p $DESTDIR/etc/systemd/system/sockets.target.wants
ln -sf /usr/lib/systemd/system/systemd-networkd.socket $DESTDIR/etc/systemd/system/sockets.target.wants/systemd-networkd.socket
ln -sf /etc/systemd/system/iptables-restore.service $DESTDIR/etc/systemd/system/multi-user.target.wants/iptables-restore.service
# disable failing services
ln -sf /dev/null $DESTDIR/etc/systemd/system/systemd-update-utmp.service
ln -sf /dev/null $DESTDIR/etc/systemd/system/systemd-tmpfiles-setup.service