mirror of
https://github.com/kiddin9/op-packages.git
synced 2026-10-26 21:02:52 +08:00
458 lines
12 KiB
Bash
Executable File
458 lines
12 KiB
Bash
Executable File
#!/bin/sh /etc/rc.common
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USE_PROCD=1
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START=99
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STOP=10
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NAME=tailscale-settings
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EXTRA_COMMANDS="clean_firewall clean_firewall_rules"
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# Compare version strings: return 0 (true) if $1 >= $2
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version_gte() {
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awk -v a="${1%%-*}" -v b="${2%%-*}" 'BEGIN {
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split(a, av, ".")
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split(b, bv, ".")
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for (i=1; i<=3; i++) {
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ai = int(av[i]+0); bi = int(bv[i]+0)
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if (ai > bi) { exit 0 }
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if (ai < bi) { exit 1 }
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}
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exit 0
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}'
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return $?
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}
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# Add/remove DNS forward entry in dnsmasq for MagicDNS via OpenWrt
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setup_tailscale_dns_forward() {
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if [ ! -x /usr/sbin/tailscale ] && [ ! -x /usr/bin/tailscale ]; then
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return 0
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fi
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local entry="/.ts.net/100.100.100.100"
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local count
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count=$(uci -q get dhcp.@dnsmasq[0].server 2>/dev/null | tr ' ' '\n' | grep -Fxc "$entry" 2>/dev/null)
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if [ "$count" -gt 1 ]; then
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uci -q del_list dhcp.@dnsmasq[0].server="$entry"
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uci add_list dhcp.@dnsmasq[0].server="$entry"
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uci commit dhcp
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/etc/init.d/dnsmasq reload 2>/dev/null || /etc/init.d/dnsmasq restart 2>/dev/null
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logger -t "$NAME" "Collapsed duplicate DNS forward entries"
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elif [ "$count" -eq 0 ]; then
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uci add_list dhcp.@dnsmasq[0].server="$entry"
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uci commit dhcp
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/etc/init.d/dnsmasq reload 2>/dev/null || /etc/init.d/dnsmasq restart 2>/dev/null
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logger -t "$NAME" "Added DNS forward: $entry"
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fi
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}
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remove_tailscale_dns_forward() {
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local entry="/.ts.net/100.100.100.100"
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local idx=0
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local removed=0
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while true; do
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local val
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val=$(uci -q get dhcp.@dnsmasq[0].server."${idx}" 2>/dev/null)
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[ -z "$val" ] && break
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if [ "$val" = "$entry" ]; then
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uci -q del_list dhcp.@dnsmasq[0].server="$entry"
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removed=1
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break
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fi
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idx=$((idx + 1))
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done
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if [ "$removed" = "1" ]; then
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uci commit dhcp
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/etc/init.d/dnsmasq reload 2>/dev/null || /etc/init.d/dnsmasq restart 2>/dev/null
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logger -t "$NAME" "Removed Tailscale DNS forward entry: $entry"
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fi
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}
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check_zone() {
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local cfg="$1"
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local name
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config_get name "$cfg" name
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if [ "$name" = "tailscale" ]; then
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FOUND_TS_ZONE="$cfg"
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fi
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}
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check_forwarding() {
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local cfg="$1"
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local src dst
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config_get src "$cfg" src
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config_get dst "$cfg" dest
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[ "$src" = "lan" ] && [ "$dst" = "tailscale" ] && FWD_LAN_TS=1
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[ "$src" = "tailscale" ] && [ "$dst" = "lan" ] && FWD_TS_LAN=1
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[ "$src" = "tailscale" ] && [ "$dst" = "wan" ] && FWD_TS_WAN=1
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}
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setup_firewall_rules() {
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local changed_net=0
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local changed_fw=0
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# 1. Interface (set both device and ifname for broad OpenWrt version compatibility)
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local dev ifname
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dev=$(uci -q get network.tailscale.device)
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ifname=$(uci -q get network.tailscale.device)
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if [ -z "$dev" ] && [ -z "$ifname" ]; then
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uci -q set network.tailscale=interface
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uci -q set network.tailscale.proto='none'
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uci -q set network.tailscale.device='tailscale0'
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uci -q set network.tailscale.device='tailscale0'
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changed_net=1
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else
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if [ -z "$dev" ]; then
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uci -q set network.tailscale.device='tailscale0'
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changed_net=1
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fi
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if [ -z "$ifname" ]; then
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uci -q set network.tailscale.device='tailscale0'
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changed_net=1
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fi
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fi
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# 2. Zone
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local tunnel_snat target_masq="0"
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tunnel_snat=$(uci -q get tailscale.settings.tunnel_snat)
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[ "$tunnel_snat" = "1" ] && target_masq="1"
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config_load firewall
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FOUND_TS_ZONE=""
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config_foreach check_zone zone
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if [ -z "$FOUND_TS_ZONE" ]; then
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local zid
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zid=$(uci -q add firewall zone)
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uci -q set firewall."$zid".name='tailscale'
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uci -q set firewall."$zid".input='ACCEPT'
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uci -q set firewall."$zid".output='ACCEPT'
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uci -q set firewall."$zid".forward='ACCEPT'
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uci -q set firewall."$zid".masq="$target_masq"
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uci -q set firewall."$zid".mtu_fix='1'
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uci -q add_list firewall."$zid".network='tailscale'
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changed_fw=1
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else
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local cur_masq
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cur_masq=$(uci -q get firewall."$FOUND_TS_ZONE".masq)
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if [ "$cur_masq" != "$target_masq" ]; then
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uci -q set firewall."$FOUND_TS_ZONE".masq="$target_masq"
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changed_fw=1
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fi
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local has_net=0
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local net
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for net in $(uci -q get firewall."$FOUND_TS_ZONE".network); do
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[ "$net" = "tailscale" ] && has_net=1
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done
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if [ "$has_net" = "0" ]; then
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uci -q add_list firewall."$FOUND_TS_ZONE".network='tailscale'
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changed_fw=1
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fi
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fi
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# 3. Forwardings
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FWD_LAN_TS=0
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FWD_TS_LAN=0
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FWD_TS_WAN=0
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config_foreach check_forwarding forwarding
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if [ "$FWD_LAN_TS" = "0" ]; then
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local fid
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fid=$(uci -q add firewall forwarding)
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uci -q set firewall."$fid".src='lan'
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uci -q set firewall."$fid".dest='tailscale'
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changed_fw=1
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fi
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if [ "$FWD_TS_LAN" = "0" ]; then
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local fid=$(uci -q add firewall forwarding)
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uci -q set firewall."$fid".src='tailscale'
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uci -q set firewall."$fid".dest='lan'
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changed_fw=1
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fi
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if [ "$FWD_TS_WAN" = "0" ]; then
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local fid=$(uci -q add firewall forwarding)
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uci -q set firewall."$fid".src='tailscale'
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uci -q set firewall."$fid".dest='wan'
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changed_fw=1
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fi
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if [ "$changed_net" = "1" ]; then
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uci -q commit network
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logger -t "$NAME" "Auto configured tailscale network interface (tailscale0)"
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fi
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if [ "$changed_fw" = "1" ]; then
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uci -q commit firewall
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/etc/init.d/firewall reload 2>/dev/null
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logger -t "$NAME" "Auto configured tailscale firewall zone and forwarding rules"
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fi
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}
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clean_firewall_rules() {
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local changed_net=0
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local changed_fw=0
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# 1. Remove forwarding rules referencing tailscale
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config_load firewall
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local fwds_to_del=""
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delete_ts_fwd() {
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local cfg="$1"
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local src dst
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config_get src "$cfg" src
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config_get dst "$cfg" dest
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if [ "$src" = "tailscale" ] || [ "$dst" = "tailscale" ]; then
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fwds_to_del="$fwds_to_del $cfg"
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fi
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}
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config_foreach delete_ts_fwd forwarding
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for fwd in $fwds_to_del; do
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uci -q delete firewall."$fwd"
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changed_fw=1
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done
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# 2. Remove tailscale zone
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local zones_to_del=""
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find_ts_zone() {
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local cfg="$1"
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local name
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config_get name "$cfg" name
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if [ "$name" = "tailscale" ]; then
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zones_to_del="$zones_to_del $cfg"
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fi
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}
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config_foreach find_ts_zone zone
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for z in $zones_to_del; do
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uci -q delete firewall."$z"
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changed_fw=1
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done
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# 3. Remove network interface
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if uci -q get network.tailscale >/dev/null; then
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uci -q delete network.tailscale
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changed_net=1
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fi
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# 4. Remove DNS forward entry in dnsmasq
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remove_tailscale_dns_forward
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if [ "$changed_net" = "1" ]; then
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uci -q commit network
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logger -t "$NAME" "Cleaned tailscale network interface"
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fi
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if [ "$changed_fw" = "1" ]; then
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uci -q commit firewall
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/etc/init.d/firewall reload 2>/dev/null
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logger -t "$NAME" "Cleaned tailscale firewall zone and forwarding rules"
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fi
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}
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clean_firewall() {
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clean_firewall_rules
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}
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apply_settings() {
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setup_firewall_rules
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local ts_bin
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if [ -x /usr/sbin/tailscale ]; then
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ts_bin=/usr/sbin/tailscale
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elif [ -x /usr/bin/tailscale ]; then
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ts_bin=/usr/bin/tailscale
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else
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logger -t "$NAME" "tailscale binary not found, skipping settings apply"
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return 0
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fi
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config_load tailscale
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local accept_routes advertise_exit_node exit_node exit_node_allow_lan_access
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local ssh shields_up runwebclient tunnel_snat hostname dns_mode
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local enable_relay relay_server_port
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config_get accept_routes settings accept_routes '0'
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config_get advertise_exit_node settings advertise_exit_node '0'
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config_get exit_node settings exit_node ''
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config_get exit_node_allow_lan_access settings exit_node_allow_lan_access '0'
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config_get ssh settings ssh '0'
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config_get dns_mode settings dns_mode 'disabled'
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config_get shields_up settings shields_up '0'
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config_get runwebclient settings runwebclient '0'
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config_get tunnel_snat settings tunnel_snat '0'
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config_get hostname settings hostname ''
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config_get enable_relay settings enable_relay '0'
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config_get relay_server_port settings relay_server_port '40000'
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# Collect advertise_routes UCI list into comma-separated string
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local routes=""
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append_route() {
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if [ -z "$routes" ]; then
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routes="$1"
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else
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routes="$routes,$1"
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fi
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}
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config_list_foreach settings advertise_routes append_route
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# Build argument list for 'tailscale set'
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set -- set
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# --accept-routes
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[ "$accept_routes" = "1" ] \
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&& set -- "$@" --accept-routes=true \
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|| set -- "$@" --accept-routes=false
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# --advertise-exit-node (only when no exit node is selected)
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[ "$advertise_exit_node" = "1" ] && [ -z "$exit_node" ] \
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&& set -- "$@" --advertise-exit-node=true \
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|| set -- "$@" --advertise-exit-node=false
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# --exit-node-allow-lan-access (only when no exit node is selected)
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if [ -z "$exit_node" ]; then
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[ "$exit_node_allow_lan_access" = "1" ] \
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&& set -- "$@" --exit-node-allow-lan-access=true \
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|| set -- "$@" --exit-node-allow-lan-access=false
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fi
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# --ssh
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[ "$ssh" = "1" ] \
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&& set -- "$@" --ssh=true \
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|| set -- "$@" --ssh=false
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# --accept-dns based on dns_mode
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case "$dns_mode" in
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magicdns)
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set -- "$@" --accept-dns=true
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remove_tailscale_dns_forward
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;;
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openwrt_forward)
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set -- "$@" --accept-dns=false
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setup_tailscale_dns_forward
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;;
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*)
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# disabled (default)
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set -- "$@" --accept-dns=false
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remove_tailscale_dns_forward
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;;
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esac
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# --shields-up
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[ "$shields_up" = "1" ] \
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&& set -- "$@" --shields-up=true \
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|| set -- "$@" --shields-up=false
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# --webclient
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[ "$runwebclient" = "1" ] \
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&& set -- "$@" --webclient=true \
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|| set -- "$@" --webclient=false
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# --snat-subnet-routes (aligned with tunnel_snat)
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[ "$tunnel_snat" = "1" ] \
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&& set -- "$@" --snat-subnet-routes=true \
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|| set -- "$@" --snat-subnet-routes=false
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# --advertise-routes (comma-separated, empty clears routes)
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set -- "$@" "--advertise-routes=$routes"
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# --exit-node (empty clears the exit node)
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set -- "$@" "--exit-node=$exit_node"
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# when an exit node is configured, always allow LAN access
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[ -n "$exit_node" ] && set -- "$@" --exit-node-allow-lan-access=true
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# --hostname (only set if non-empty)
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[ -n "$hostname" ] && set -- "$@" "--hostname=$hostname"
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# --relay-server-port (requires tailscale >= 1.90.5)
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local ts_ver
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ts_ver=$("$ts_bin" version 2>/dev/null | head -n1)
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if version_gte "$ts_ver" "1.90.5"; then
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if [ "$enable_relay" = "1" ]; then
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set -- "$@" "--relay-server-port=${relay_server_port:-40000}"
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else
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set -- "$@" "--relay-server-port="
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fi
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fi
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# Always enforce netfilter-mode=off so OpenWrt manages all firewall rules cleanly
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set -- "$@" --netfilter-mode=off
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# Wait for tailscaled daemon to be ready (up to 5 seconds)
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local i=0
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local daemon_ready=0
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while [ $i -lt 5 ]; do
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if "$ts_bin" status >/dev/null 2>&1; then
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daemon_ready=1
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break
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fi
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if ! "$ts_bin" status 2>&1 | grep -q "failed to connect to local tailscaled"; then
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daemon_ready=1
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break
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fi
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sleep 1
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i=$((i + 1))
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done
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if [ "$daemon_ready" = "0" ]; then
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logger -t "$NAME" "Tailscale daemon is not running or socket is unreachable, skipping settings apply"
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return 0
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fi
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# Check logged-in status. Skip applying settings if logged out to prevent command error.
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local status_out
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status_out=$("$ts_bin" status 2>&1)
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if echo "$status_out" | grep -qE "Logged out|NeedsLogin|NeedsCard"; then
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logger -t "$NAME" "Tailscale is logged out, saving settings locally but skipping immediate apply"
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return 0
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fi
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logger -t "$NAME" "Applying settings via tailscale set"
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"$ts_bin" "$@"
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local ret=$?
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if [ $ret -eq 0 ]; then
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logger -t "$NAME" "Settings applied successfully"
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else
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logger -t "$NAME" "Failed to apply settings (exit code: $ret)"
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fi
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return 0
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}
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handle_service_state() {
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config_load tailscale
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local service_enabled
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config_get service_enabled settings service_enabled '0'
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if [ "$service_enabled" = "0" ]; then
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logger -t "$NAME" "Service is disabled, stopping tailscale and cleaning up"
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/etc/init.d/tailscale stop 2>/dev/null
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/etc/init.d/tailscale disable 2>/dev/null
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clean_firewall_rules
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killall -9 tailscaled 2>/dev/null || true
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else
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logger -t "$NAME" "Service is enabled, ensuring tailscale is running"
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/etc/init.d/tailscale enable 2>/dev/null
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if ! /usr/sbin/tailscale status >/dev/null 2>&1 && ! /usr/bin/tailscale status >/dev/null 2>&1; then
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/etc/init.d/tailscale start 2>/dev/null
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fi
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apply_settings
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fi
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}
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start_service() {
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handle_service_state
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}
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service_triggers() {
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procd_add_reload_trigger "tailscale"
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}
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reload_service() {
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handle_service_state
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}
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