/
AdGuardHome.sh
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/
AdGuardHome.sh
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#!/bin/sh
SCRIPT_LOC="$(readlink -f "$0")"
MID_SCRIPT="/jffs/addons/AdGuardHome.d/AdGuardHome.sh"
UPPER_SCRIPT="/opt/etc/init.d/S99AdGuardHome"
LOWER_SCRIPT="/opt/etc/init.d/rc.func.AdGuardHome"
if [ -f "$UPPER_SCRIPT" ]; then UPPER_SCRIPT_LOC=". $UPPER_SCRIPT"; fi
if [ -f "$LOWER_SCRIPT" ]; then LOWER_SCRIPT_LOC=". $LOWER_SCRIPT"; fi
if [ "$1" = "init-start" ] && [ ! -f "$UPPER_SCRIPT" ]; then timezone; while [ ! -f "$UPPER_SCRIPT" ]; do sleep 1; done; fi
if [ -f "$UPPER_SCRIPT" ]; then { if { [ "$(readlink -f "$UPPER_SCRIPT")" != "$SCRIPT_LOC" ] || [ "$0" != "$UPPER_SCRIPT" ]; }; then { exec $UPPER_SCRIPT "$@"; } && exit; fi; }; else { if [ -z "$PROCS" ]; then exit; fi; }; fi
{ for PID in $(pidof "S99${PROCS}"); do if { awk '{ print }' "/proc/${PID}/cmdline" | grep -q monitor-start; } && [ "$PID" != "$$" ]; then { MON_PID="$PID"; }; fi; done; };
NAME="$(basename "$0")[$$]"
check_dns_environment () {
local NVCHECK
NVCHECK="0"
if [ "$(nvram get dnspriv_enable)" != "0" ]; then { nvram set dnspriv_enable="0"; }; NVCHECK="$((NVCHECK+1))"; fi
if [ "$(pidof stubby)" ]; then { killall -q -9 stubby 2>/dev/null; }; NVCHECK="$((NVCHECK+1))"; fi
if [ "$(nvram get dhcp_dns1_x)" ]; then { nvram set dhcp_dns1_x=""; }; NVCHECK="$((NVCHECK+1))"; fi
if [ "$(nvram get dhcp_dns2_x)" ]; then { nvram set dhcp_dns2_x=""; }; NVCHECK="$((NVCHECK+1))"; fi
if [ "$(nvram get dhcpd_dns_router)" != "1" ]; then { nvram set dhcpd_dns_router="1"; }; NVCHECK="$((NVCHECK+1))"; fi
if [ "$NVCHECK" != "0" ]; then { nvram commit; }; { service restart_dnsmasq >/dev/null 2>&1; }; while { [ "$(ping 1.1.1.1 -c1 -W2 >/dev/null 2>&1; printf "%s" "$?")" = "0" ] && [ "$(nslookup google.com 127.0.0.1 >/dev/null 2>&1; printf "%s" "$?")" != "0" ]; }; do sleep 1; done; fi
}
dnsmasq_params () {
local CONFIG
local COUNT
local iCOUNT
local dCOUNT
local iVARS
local IVARS
local dVARS
local DVARS
local NIVARS
local NDVARS
local i
CONFIG="/etc/dnsmasq.conf"
if [ "$(nvram get dns_local_cache)" != "1" ] && [ "$(readlink -f /tmp/resolv.conf)" = "/rom/etc/resolv.conf" ]; then { umount /tmp/resolv.conf 2>/dev/null; }; fi
[ -z "$(pidof "$PROCS")" ] && exit
if [ -z "$(nvram get ipv6_rtr_addr)" ]; then { printf "%s\n" "port=553" "local=/$(nvram get lan_ipaddr | awk 'BEGIN{FS="."}{print $2"."$1".in-addr.arpa"}')/" "local=/10.in-addr.arpa/" "dhcp-option=lan,6,0.0.0.0" >> $CONFIG; }; else { printf "%s\n" "port=553" "local=/$(nvram get lan_ipaddr | awk 'BEGIN{FS="."}{print $2"."$1".in-addr.arpa"}')/" "local=/10.in-addr.arpa/" "local=/$(nvram get ipv6_prefix | awk -F: '{for(i=1;i<=NF;i++)x=x""sprintf (":%4s", $i);gsub(/ /,"0",x);print x}' | cut -c 2- | cut -c 1-20 | sed 's/://g;s/^.*$/\n&\n/;tx;:x;s/\(\n.\)\(.*\)\(.\n\)/\3\2\1/;tx;s/\n//g;s/\(.\)/\1./g;s/$/ip6.arpa/')/" "dhcp-option=lan,6,0.0.0.0" >> $CONFIG; }; fi
if [ -n "$(route | grep "br" | grep -v "br0" | grep -E "^(192\.168|10\.|172\.1[6789]\.|172\.2[0-9]\.|172\.3[01]\.)" | awk '{print $1}' | sed -e 's/[0-9]$/1/' | sed -e ':a; N; $!ba;s/\n/ /g')" ]; then
iCOUNT="1"
for iVARS in $(route | grep "br" | grep -v "br0" | grep -E "(192\.168|10\.|172\.1[6789]\.|172\.2[0-9]\.|172\.3[01]\.)" | awk '{print $8}' | sed -e ':a; N; $!ba;s/\n/ /g'); do
[ "$iCOUNT" = "1" ] && COUNT="$iCOUNT" && IVARS="$iVARS"
[ "$iCOUNT" != "1" ] && COUNT="$COUNT $iCOUNT" && IVARS="$IVARS $iVARS"
iCOUNT="$((iCOUNT+1))"
done
dCOUNT="1"
for dVARS in $(route | grep "br" | grep -v "br0" | grep -E "192\.168|10\.|172\.1[6789]\.|172\.2[0-9]\.|172\.3[01]\.)" | awk '{print $1}' | sed -e 's/[0-9]$/1/' | sed -e ':a; N; $!ba;s/\n/ /g'); do
[ "$dCOUNT" = "1" ] && DVARS="$dVARS"
[ "$dCOUNT" != "1" ] && DVARS="$DVARS $dVARS"
dCOUNT="$((dCOUNT+1))"
done
for i in $COUNT; do
NIVARS="$(printf "%s\n" "$IVARS" | cut -d' ' -f"$i")"
NDVARS="$(printf "%s\n" "$DVARS" | cut -d' ' -f"$i")"
printf "%s\n" "dhcp-option=${NIVARS},6,${NDVARS}" >> $CONFIG
done
fi
if [ "$(nvram get dns_local_cache)" != "1" ]; then { mount -o bind /rom/etc/resolv.conf /tmp/resolv.conf; }; fi
}
lower_script () {
case $1 in
*)
$LOWER_SCRIPT_LOC "$1" "$NAME"
;;
esac
}
start_AdGuardHome () {
local STATE
local NW_STATE
local RES_STATE
if [ -z "$(pidof "$PROCS")" ]; then { lower_script start; }; else { lower_script restart; }; fi
for db in stats.db sessions.db; do { if [ ! "$(readlink -f "/tmp/${db}")" = "$(readlink -f "${WORK_DIR}/data/${db}")" ]; then { ln -s "${WORK_DIR}/data/${db}" "/tmp/${db}" >/dev/null 2>&1; }; fi; }; done
STATE="0"
[ -z "$1" ] && NW_STATE="$(ping 1.1.1.1 -c1 -W2 >/dev/null 2>&1; printf "%s" "$?")"
[ -z "$1" ] && RES_STATE="$(nslookup google.com 127.0.0.1 >/dev/null 2>&1; printf "%s" "$?")"
[ -z "$1" ] && while { [ "$NW_STATE" = "0" ] && [ "$RES_STATE" != "0" ] && [ "$STATE" -lt "10" ]; }; do sleep 1; NW_STATE="$(ping 1.1.1.1 -c1 -W2 >/dev/null 2>&1; printf "%s" "$?")"; RES_STATE="$(nslookup google.com 127.0.0.1 >/dev/null 2>&1; printf "%s" "$?")"; STATE="$((STATE + 1))"; done
[ "$STATE" -eq "10" ] && start_AdGuardHome x
}
start_monitor () {
trap '' 1 2 3 6 15
trap 'EXIT="1"' 10
trap 'EXIT="2"' 12
while [ "$(nvram get ntp_ready)" -eq "0" ]; do sleep 1; done
local NW_STATE
local RES_STATE
local COUNT
local EXIT
EXIT="0"
logger -st "$NAME" "Starting_Monitor: $NAME"
while true; do
if [ "$EXIT" = "1" ]; then logger -st "$NAME" "Stopping_Monitor: $NAME"; trap - 1 2 3 6 10 12 15; stop_AdGuardHome; break; fi
if [ "$EXIT" = "2" ]; then start_AdGuardHome; EXIT="0"; fi
if [ -z "$COUNT" ]; then COUNT="0"; timezone; fi
if [ "$COUNT" = "90" ]; then COUNT="0"; else COUNT="$((COUNT + 1))"; fi
if [ -f "/opt/sbin/AdGuardHome" ]; then
case $COUNT in
"30"|"60"|"90")
timezone
NW_STATE="$(ping 1.1.1.1 -c1 -W2 >/dev/null 2>&1; printf "%s" "$?")"
RES_STATE="$(nslookup google.com 127.0.0.1 >/dev/null 2>&1; printf "%s" "$?")"
;;
esac
if [ -z "$(pidof "$PROCS")" ]; then
logger -st "$NAME" "Warning: $PROCS is dead; $NAME will start it!"
start_AdGuardHome
elif { [ "$COUNT" -eq "30" ] || [ "$COUNT" -eq "60" ] || [ "$COUNT" -eq "90" ]; } && { [ "$NW_STATE" = "0" ] && [ "$RES_STATE" != "0" ]; }; then
logger -st "$NAME" "Warning: $PROCS is not responding; $NAME will re-start it!"
start_AdGuardHome
fi
fi
sleep 10
done
}
stop_monitor () {
local SIGNAL
case "$1" in
"$MON_PID")
SIGNAL="12"
;;
"$$")
if [ -n "$MON_PID" ]; then SIGNAL="10"; else { stop_AdGuardHome; }; fi
;;
esac
[ -n "$SIGNAL" ] && { kill -s "$SIGNAL" "$MON_PID" 2>/dev/null; };
}
stop_AdGuardHome () {
if [ -n "$(pidof "$PROCS")" ]; then { lower_script stop || lower_script kill; }; { until [ -z "$(pidof "$PROCS")" ]; do sleep 1; done; }; { service restart_dnsmasq >/dev/null 2>&1; }; fi
for db in stats.db sessions.db; do { if [ "$(readlink -f "/tmp/${db}")" = "$(readlink -f "${WORK_DIR}/data/${db}")" ]; then { rm "/tmp/${db}" >/dev/null 2>&1; }; fi; }; done
}
timezone () {
local TIMEZONE
local TARGET
TIMEZONE="/jffs/addons/AdGuardHome.d/localtime"
TARGET="/etc/localtime"
if { [ ! -f "$TARGET" ] && [ -f "$TIMEZONE" ]; }; then { ln -sf "$TIMEZONE" "$TARGET"; }; fi
if [ -f "$TARGET" ] || [ "$(readlink "$TARGET")" ]; then { if [ "$(date -u '+%s')" -le "$(date -u -r "$MID_SCRIPT" '+%s')" ]; then { date -u -s "$(date -u -r "$MID_SCRIPT" '+%Y-%m-%d %H:%M:%S')"; }; else { touch "$MID_SCRIPT"; }; fi; }; fi
}
unset TZ
case "$1" in
"monitor-start")
if [ -n "$MON_PID" ]; then { stop_monitor "$MON_PID"; }; else { start_monitor & }; fi
;;
"start"|"restart")
{ "$SCRIPT_LOC" init-start >/dev/null 2>&1; };
;;
"stop"|"kill")
{ "$SCRIPT_LOC" services-stop >/dev/null 2>&1; };
;;
"dnsmasq")
dnsmasq_params
;;
"init-start"|"services-stop")
timezone
case "$1" in
"init-start")
{ printf "0" > /proc/sys/vm/overcommit_memory; }; # Ensure kernal algorithm checks properly work.
{ "$SCRIPT_LOC" monitor-start; };
;;
"services-stop")
{ stop_monitor "$$"; };
;;
esac
;;
*)
{ $LOWER_SCRIPT_LOC "$1"; } && exit
;;
esac
check_dns_environment