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#!/bin/sh /etc/rc.common
# Copyright 2017-2019 Stan Grishin (stangri@melmac.net)
# shellcheck disable=SC2039
# shellcheck disable=SC1091
PKG_VERSION='dev-test'
export START=94
export USE_PROCD=1
export LC_ALL=C
export EXTRA_COMMANDS='check dl killcache sizes status'
export EXTRA_HELP=' check Checks if specified domain is found in current blacklist
dl Force-redownloads all the list
sizes Shows the file-sizes of enabled block-lists (by downloading them one by one)
status Shows the service last-run status'
readonly packageName='simple-adblock'
readonly serviceName="$packageName $PKG_VERSION"
readonly addnhostsFile="/var/run/${packageName}.addnhosts"
readonly addnhostsCache="/var/run/${packageName}.addnhosts.cache"
readonly addnhostsGzip="/etc/${packageName}.addnhosts.gz"
readonly addnhostsOutputFilter='s|^|127.0.0.1 |;s|$||'
readonly addnhostsOutputFilterIPv6='s|^|:: |;s|$||'
readonly dnsmasqFile="/var/dnsmasq.d/${packageName}"
readonly dnsmasqCache="/var/run/${packageName}.dnsmasq.cache"
readonly dnsmasqGzip="/etc/${packageName}.dnsmasq.gz"
readonly dnsmasqOutputFilter='s|^|local=/|;s|$|/|'
readonly ipsetFile="/var/dnsmasq.d/${packageName}.ipset"
readonly ipsetCache="/var/run/${packageName}.ipset.cache"
readonly ipsetGzip="/etc/${packageName}.ipset.gz"
readonly ipsetOutputFilter='s|^|ipset=/|;s|$|/adb|'
readonly serversFile="/var/run/${packageName}.servers"
readonly serversCache="/var/run/${packageName}.servers.cache"
readonly serversGzip="/etc/${packageName}.servers.gz"
readonly serversOutputFilter='s|^|server=/|;s|$|/|'
readonly unboundFile="/var/lib/unbound/adb_list.${packageName}"
readonly unboundCache="/var/run/${packageName}.unbound.cache"
readonly unboundGzip="/etc/${packageName}.unbound.gz"
readonly unboundOutputFilter='s|^|local-zone: "|;s|$|" static|'
readonly A_TMP="/var/${packageName}.hosts.a.tmp"
readonly B_TMP="/var/${packageName}.hosts.b.tmp"
readonly PIDFile="/var/run/${packageName}.pid"
readonly jsonFile="/var/run/${packageName}.json"
readonly hostsFilter='/localhost/d;/^#/d;/^[^0-9]/d;s/^0\.0\.0\.0.//;s/^127\.0\.0\.1.//;s/[[:space:]]*#.*$//;s/[[:cntrl:]]$//;s/[[:space:]]//g;/[`~!@#\$%\^&\*()=+;:"'\'',<>?/\|[{}]/d;/]/d;/\./!d;/^$/d;/[^[:alnum:]_.-]/d;'
readonly domainsFilter='/^#/d;s/[[:space:]]*#.*$//;s/[[:space:]]*$//;s/[[:cntrl:]]$//;/[[:space:]]/d;/[`~!@#\$%\^&\*()=+;:"'\'',<>?/\|[{}]/d;/]/d;/\./!d;/^$/d;/[^[:alnum:]_.-]/d;'
readonly checkmark='\xe2\x9c\x93'
readonly xmark='\xe2\x9c\x97'
readonly _OK_='\033[0;32m\xe2\x9c\x93\033[0m'
readonly _FAIL_='\033[0;31m\xe2\x9c\x97\033[0m'
readonly __OK__='\033[0;32m[\xe2\x9c\x93]\033[0m'
readonly __FAIL__='\033[0;31m[\xe2\x9c\x97]\033[0m'
readonly _ERROR_='\033[0;31mERROR\033[0m'
readonly statusSuccess='Success'
readonly statusFail='Fail'
readonly statusDownloading='Downloading'
readonly statusReloading='Reloading'
readonly statusRestarting='Restarting'
readonly statusStarting='Starting'
readonly statusForceReloading='Force-Reloading'
readonly statusProcessing='Processing'
readonly statusStopped='Stopped'
readonly sharedMemoryError="/dev/shm/$packageName-error"
readonly sharedMemoryOutput="/dev/shm/$packageName-output"
create_lock() { [ -e "$PIDFile" ] && return 1; touch "$PIDFile"; }
remove_lock() { [ -e "$PIDFile" ] && rm -f "$PIDFile"; }
trap remove_lock EXIT
output_ok() { output 1 "$_OK_"; output 2 "$__OK__\\n"; }
output_okn() { output 1 "$_OK_\\n"; output 2 "$__OK__\\n"; }
output_fail() { output 1 "$_FAIL_"; output 2 "$__FAIL__\\n"; }
output_failn() { output 1 "$_FAIL_\\n"; output 2 "$__FAIL__\\n"; }
str_replace() { printf "%b" "$1" | sed -e "s/$(printf "%b" "$2")/$(printf "%b" "$3")/g"; }
str_contains() { test "$1" != "$(str_replace "$1" "$2" '')"; }
compare_versions() { test "$(printf '%s\n' "$@" | sort -V | head -n 1)" != "$1"; }
is_chaos_calmer() { ubus -S call system board | grep -q 'Chaos Calmer'; }
is_ipset_procd() { compare_versions "$(sed -ne 's/^Version: //p' /usr/lib/opkg/info/firewall.control)" "2019-09-18"; }
led_on(){ if [ -n "${1}" ] && [ -e "${1}/trigger" ]; then echo 'default-on' > "${1}/trigger" 2>&1; fi; }
led_off(){ if [ -n "${1}" ] && [ -e "${1}/trigger" ]; then echo 'none' > "${1}/trigger" 2>&1; fi; }
dnsmasq_hup() { killall -q -HUP dnsmasq; }
dnsmasq_kill() { killall -q -KILL dnsmasq; }
dnsmasq_restart() { /etc/init.d/dnsmasq restart >/dev/null 2>&1; }
unbound_restart() { /etc/init.d/unbound restart >/dev/null 2>&1; }
output() {
# Can take a single parameter (text) to be output at any verbosity
# Or target verbosity level and text to be output at specifc verbosity
local msg memmsg
if [ $# -ne 1 ]; then
if [ $((verbosity & $1)) -gt 0 ] || [ "$verbosity" = "$1" ]; then shift; else return 0; fi
fi
[ -t 1 ] && printf "%b" "$1"
msg="$(printf "%s" "$(str_replace "$1" "$serviceName " "service ")" | sed 's|\\033\[[0-9]\?;\?[0-9]\?[0-9]\?m||g')";
if [ "$(printf "%b" "$msg" | wc -l)" -gt 0 ]; then
[ -s "$sharedMemoryOutput" ] && memmsg="$(cat "$sharedMemoryOutput")"
logger -t "${packageName:-service} [$$]" "$(printf "%b" "${memmsg}${msg}")"
rm -f "$sharedMemoryOutput"
else
printf "%b" "$msg" >> "$sharedMemoryOutput"
fi
}
export serviceEnabled forceDNS parallelDL debug allowIDN compressedCache
export targetDNS bootDelay dlTimeout curlRetry verbosity led dnsInstance
export whitelist_domains blacklist_domains
export whitelist_domains_urls blacklist_domains_urls blacklist_hosts_urls
export wan_if wan_gw wanphysdev dl_command serviceStatus dl_flag
export outputFilter outputFilterIPv6 outputFile outputGzip outputCache ipv6Enabled
load_package_config() {
config_load "$packageName"
config_get_bool serviceEnabled 'config' 'enabled' 1
config_get_bool forceDNS 'config' 'force_dns' 1
config_get_bool parallelDL 'config' 'parallel_downloads' 1
config_get_bool debug 'config' 'debug' 0
config_get_bool compressedCache 'config' 'compressed_cache' 0
config_get_bool ipv6Enabled 'config' 'ipv6_enabled' 0
config_get bootDelay 'config' 'boot_delay' '120'
config_get dlTimeout 'config' 'download_timeout' '20'
config_get curlRetry 'config' 'curl_retry' '3'
config_get verbosity 'config' 'verbosity' '2'
config_get led 'config' 'led'
config_get targetDNS 'config' 'dns' 'dnsmasq.servers'
config_get dnsInstance 'config' 'dns_instance' '0'
config_get whitelist_domains 'config' 'whitelist_domain'
config_get blacklist_domains 'config' 'blacklist_domain'
config_get whitelist_domains_urls 'config' 'whitelist_domains_url'
config_get blacklist_domains_urls 'config' 'blacklist_domains_url'
config_get blacklist_hosts_urls 'config' 'blacklist_hosts_url'
if [ "$targetDNS" != 'dnsmasq.addnhosts' ] && [ "$targetDNS" != 'dnsmasq.conf' ] && \
[ "$targetDNS" != 'dnsmasq.servers' ] && [ "$targetDNS" != 'unbound.adb_list' ] && \
[ "$targetDNS" != 'dnsmasq.ipset' ] ; then
targetDNS='dnsmasq.servers'
fi
case "$targetDNS" in
dnsmasq.addnhosts)
outputFilter="$addnhostsOutputFilter"
outputFile="$addnhostsFile"
outputCache="$addnhostsCache"
outputGzip="$addnhostsGzip"
[ "$ipv6Enabled" -gt 0 ] && outputFilterIPv6="$addnhostsOutputFilterIPv6"
rm -f "$dnsmasqFile" "$dnsmasqCache" "$dnsmasqGzip"
rm -f "$ipsetFile" "$ipsetCache" "$ipsetGzip"
rm -f "$serversFile" "$serversCache" "$serversGzip"
rm -f "$unboundFile" "$unboundCache" "$unboundGzip"
;;
dnsmasq.conf)
outputFilter="$dnsmasqOutputFilter"
outputFile="$dnsmasqFile"
outputCache="$dnsmasqCache"
outputGzip="$dnsmasqGzip"
rm -f "$addnhostsFile" "$addnhostsCache" "$addnhostsGzip"
rm -f "$ipsetFile" "$ipsetCache" "$ipsetGzip"
rm -f "$serversFile" "$serversCache" "$serversGzip"
rm -f "$unboundFile" "$unboundCache" "$unboundGzip"
;;
dnsmasq.ipset)
outputFilter="$ipsetOutputFilter"
outputFile="$ipsetFile"
outputCache="$ipsetCache"
outputGzip="$ipsetGzip"
rm -f "$dnsmasqFile" "$dnsmasqCache" "$dnsmasqGzip"
rm -f "$addnhostsFile" "$addnhostsCache" "$addnhostsGzip"
rm -f "$serversFile" "$serversCache" "$serversGzip"
rm -f "$unboundFile" "$unboundCache" "$unboundGzip"
;;
dnsmasq.servers)
outputFilter="$serversOutputFilter"
outputFile="$serversFile"
outputCache="$serversCache"
outputGzip="$serversGzip"
rm -f "$dnsmasqFile" "$dnsmasqCache" "$dnsmasqGzip"
rm -f "$addnhostsFile" "$addnhostsCache" "$addnhostsGzip"
rm -f "$ipsetFile" "$ipsetCache" "$ipsetGzip"
rm -f "$unboundFile" "$unboundCache" "$unboundGzip"
;;
unbound.adb_list)
outputFilter="$unboundOutputFilter"
outputFile="$unboundFile"
outputCache="$unboundCache"
outputGzip="$unboundGzip"
rm -f "$addnhostsFile" "$addnhostsCache" "$addnhostsGzip"
rm -f "$dnsmasqFile" "$dnsmasqCache" "$dnsmasqGzip"
rm -f "$ipsetFile" "$ipsetCache" "$ipsetGzip"
rm -f "$serversFile" "$serversCache" "$serversGzip"
;;
esac
if [ -z "${verbosity##*[!0-9]*}" ] || [ "$verbosity" -lt 0 ] || [ "$verbosity" -gt 2 ]; then
verbosity=1
fi
. /lib/functions/network.sh
. /usr/share/libubox/jshn.sh
# Prefer curl because it supports the file: scheme.
if [ -x /usr/bin/curl ] ; then
dl_command="curl --insecure --retry $curlRetry --connect-timeout $dlTimeout --silent"
dl_flag="-o"
else
dl_command="wget --no-check-certificate --timeout $dlTimeout -q"
dl_flag="-O"
fi
led="${led:+/sys/class/leds/$led}"
}
is_enabled() {
load_package_config
if [ "$debug" -ne 0 ]; then
exec 1>>/tmp/simple-adblock.log
exec 2>&1
set -x
fi
if [ "$serviceEnabled" -eq 0 ]; then
case "$1" in
on_start)
output "$packageName is currently disabled.\\n"
output "Run the following commands before starting service again:\\n"
output "uci set ${packageName}.config.enabled='1'; uci commit $packageName;\\n"
;;
esac
return 1
fi
case $targetDNS in
dnsmasq.addnhosts | dnsmasq.conf | dnsmasq.ipset | dnsmasq.servers)
if dnsmasq -v 2>/dev/null | grep -q 'no-IDN' || ! dnsmasq -v 2>/dev/null | grep -q -w 'IDN'; then
allowIDN=0
else
allowIDN=1
fi
;;
unbound.adb_list)
allowIDN=1;;
esac
case $targetDNS in
dnsmasq.ipset)
if dnsmasq -v 2>/dev/null | grep -q 'no-ipset' || ! dnsmasq -v 2>/dev/null | grep -q -w 'ipset'; then
output "$_ERROR_: DNSMASQ ipset support is enabled in $packageName, but DNSMASQ is either not installed or installed DNSMASQ does not support ipsets!\\n"
targetDNS='dnsmasq.servers'
fi
if ! ipset help hash:net >/dev/null 2>&1; then
output "$_ERROR_: DNSMASQ ipset support is enabled in $packageName, but ipset is either not installed or installed ipset does not support 'hash:net' type!\\n"
targetDNS='dnsmasq.servers'
fi
;;
esac
[ ! -d "${outputFile%/*}" ] && mkdir -p "${outputFile%/*}"
[ ! -d "${outputCache%/*}" ] && mkdir -p "${outputFile%/*}"
[ ! -d "${outputGzip%/*}" ] && mkdir -p "${outputFile%/*}"
cacheOps 'testGzip' && return 0
network_flush_cache; network_find_wan wan_if; network_get_gateway wan_gw "$wan_if";
[ -n "$wan_gw" ] && return 0
output "$_ERROR_: $serviceName failed to discover WAN gateway.\\n"; return 1;
}
dnsOps() {
local param output_text
case $1 in
on_start)
if [ ! -s "$outputFile" ]; then
tmpfs set status "$statusFail"
tmpfs add error "Error: Failed to create $outputFile file."
output "$_ERROR_: $serviceName failed to create its data file!\\n"
return 1
fi
case "$targetDNS" in
dnsmasq.addnhosts)
if [ "$(uci -q get dhcp.@dnsmasq["$dnsInstance"].serversfile)" = "$serversFile" ]; then
uci -q del dhcp.@dnsmasq["$dnsInstance"].serversfile
fi
if ! uci -q get dhcp.@dnsmasq["$dnsInstance"].addnhosts | grep -q "$addnhostsFile"; then
uci add_list dhcp.@dnsmasq["$dnsInstance"].addnhosts="$addnhostsFile"
fi
param=dnsmasq_hup
output_text='Reloading DNSMASQ'
;;
dnsmasq.conf)
uci -q del_list dhcp.@dnsmasq["$dnsInstance"].addnhosts="$addnhostsFile"
if [ "$(uci -q get dhcp.@dnsmasq["$dnsInstance"].serversfile)" = "$serversFile" ]; then
uci -q del dhcp.@dnsmasq["$dnsInstance"].serversfile
fi
param=dnsmasq_restart
output_text='Restarting DNSMASQ'
;;
dnsmasq.ipset)
uci -q del_list dhcp.@dnsmasq["$dnsInstance"].addnhosts="$addnhostsFile"
if [ "$(uci -q get dhcp.@dnsmasq["$dnsInstance"].serversfile)" = "$serversFile" ]; then
uci -q del dhcp.@dnsmasq["$dnsInstance"].serversfile
fi
param=dnsmasq_restart
output_text='Restarting DNSMASQ'
;;
dnsmasq.servers)
uci -q del_list dhcp.@dnsmasq["$dnsInstance"].addnhosts="$addnhostsFile"
if [ "$(uci -q get dhcp.@dnsmasq["$dnsInstance"].serversfile)" != "$serversFile" ]; then
uci set dhcp.@dnsmasq["$dnsInstance"].serversfile="$serversFile"
fi
param=dnsmasq_hup
output_text='Reloading DNSMASQ'
;;
unbound.adb_list)
uci -q del_list dhcp.@dnsmasq["$dnsInstance"].addnhosts="$addnhostsFile"
if [ "$(uci -q get dhcp.@dnsmasq["$dnsInstance"].serversfile)" = "$serversFile" ]; then
uci -q del dhcp.@dnsmasq["$dnsInstance"].serversfile
fi
param=unbound_restart
output_text='Restarting Unbound'
;;
esac
if [ -n "$(uci changes dhcp)" ]; then
uci commit dhcp
if [ "$param" = 'unbound_restart' ]; then
param='dnsmasq_restart; unbound_restart;'
output_text='Restarting Unbound/DNSMASQ'
else
param=dnsmasq_restart
output_text='Restarting DNSMASQ'
fi
fi
output 1 "$output_text "
output 2 "$output_text "
tmpfs set message "$output_text"
if eval "$param"; then
tmpfs set status "$statusSuccess"
led_on "$led"
output_okn
else
output_fail
tmpfs set status "$statusFail"
tmpfs add error "Error: $output_text error."
output "$_ERROR_: $serviceName $output_text error!\\n"
return 1
fi
;;
on_stop)
case "$targetDNS" in
dnsmasq.addnhosts | dnsmasq.servers)
param=dnsmasq_hup
;;
dnsmasq.conf | dnsmasq.ipset)
param=dnsmasq_restart
;;
unbound.adb_list)
param=unbound_restart
;;
esac
if [ -n "$(uci changes dhcp)" ]; then
uci -q commit dhcp
if [ "$param" = 'unbound_restart' ]; then
param='dnsmasq_restart; unbound_restart;'
else
param=dnsmasq_restart
fi
fi
eval "$param"
return $?
;;
quiet)
case "$targetDNS" in
dnsmasq.addnhosts | dnsmasq.conf | dnsmasq.ipset | dnsmasq.servers)
param=dnsmasq_restart
;;
unbound.adb_list)
param=unbound_restart
;;
esac
eval "$param"
return $?
;;
esac
}
tmpfs() {
local action="$1" instance="$2" value="$3"
local status message error stats
local readReload readRestart curReload curRestart ret
if [ -s "$jsonFile" ]; then
status="$(jsonfilter -i $jsonFile -l1 -e "@['data']['status']")"
message="$(jsonfilter -i $jsonFile -l1 -e "@['data']['message']")"
error="$(jsonfilter -i $jsonFile -l1 -e "@['data']['error']")"
stats="$(jsonfilter -i $jsonFile -l1 -e "@['data']['stats']")"
readReload="$(jsonfilter -i $jsonFile -l1 -e "@['data']['reload']")"
readRestart="$(jsonfilter -i $jsonFile -l1 -e "@['data']['restart']")"
fi
case "$action" in
get)
case "$instance" in
status)
echo "$status"; return;;
message)
echo "$message"; return;;
error)
echo "$error"; return;;
stats)
echo "$stats"; return;;
triggers)
curReload="$parallelDL $debug $dlTimeout $whitelist_domains $blacklist_domains $whitelist_domains_urls $blacklist_domains_urls $blacklist_hosts_urls $targetDNS"
curRestart="$compressedCache $forceDNS $led"
if [ "$curReload" != "$readReload" ]; then
ret='download'
elif [ "$curRestart" != "$readRestart" ]; then
ret='restart'
fi
echo "$ret"
return;;
esac
;;
add)
case "$instance" in
status)
[ -n "$status" ] && status="$status $value" || status="$value";;
message)
[ -n "$message" ] && message="${message} ${value}" || message="$value";;
error)
[ -n "$error" ] && error="$error $value" || error="$value";;
stats)
[ -n "$stats" ] && stats="$stats $value" || stats="$value";;
esac
;;
del)
case "$instance" in
all)
unset status;
unset message;
unset error;
unset stats;
;;
status)
unset status;;
message)
unset message;;
error)
unset error;;
stats)
unset stats;;
triggers)
unset readReload; unset readRestart;;
esac
;;
set)
case "$instance" in
status)
status="$value";;
message)
message="$value";;
error)
error="$value";;
stats)
stats="$value";;
triggers)
readReload="$parallelDL $debug $dlTimeout $whitelist_domains $blacklist_domains $whitelist_domains_urls $blacklist_domains_urls $blacklist_hosts_urls $targetDNS"
readRestart="$compressedCache $forceDNS $led"
;;
esac
;;
esac
json_init
json_add_object 'data'
json_add_string version "$PKG_VERSION"
json_add_string status "$status"
json_add_string message "$message"
json_add_string error "$error"
json_add_string stats "$stats"
json_add_string reload "$readReload"
json_add_string restart "$readRestart"
json_close_object
json_dump > "$jsonFile"
sync
}
cacheOps() {
local R_TMP
case "$1" in
create|backup)
[ -s "$outputFile" ] && { mv -f "$outputFile" "$outputCache"; true > "$outputFile"; } >/dev/null 2>/dev/null
return $?
;;
restore|use)
[ -s "$outputCache" ] && mv "$outputCache" "$outputFile" >/dev/null 2>/dev/null
return $?
;;
test)
[ -s "$outputCache" ]
return $?
;;
testGzip)
[ -s "$outputGzip" ] && gzip -t -c "$outputGzip"
return $?
;;
createGzip)
R_TMP="$(mktemp -u -q -t ${packageName}_tmp.XXXXXXXX)"
if gzip < "$outputFile" > "$R_TMP"; then
if mv "$R_TMP" "$outputGzip"; then
rm -f "$R_TMP"
return 0
else
rm -f "$R_TMP"
return 1
fi
else
return 1
fi
;;
expand|unpack|expandGzip|unpackGzip)
[ -s "$outputGzip" ] && gzip -dc < "$outputGzip" > "$outputCache"
return $?
;;
esac
}
fw3Ops() {
local action="$1" param="$2" _restart
case "$action" in
reload) /etc/init.d/firewall reload >/dev/null 2>&1;;
restart) /etc/init.d/firewall restart >/dev/null 2>&1;;
remove)
case "$param" in
dns_redirect) uci -q del firewall.simple_adblock_dns_redirect;;
ipset) uci -q del firewall.simple_adblock_ipset
uci -q del firewall.simple_adblock_ipset_rule;;
*)
uci -q del firewall.simple_adblock_dns_redirect
uci -q del firewall.simple_adblock_ipset
uci -q del firewall.simple_adblock_ipset_rule
;;
esac
;;
insert)
case "$param" in
dns_redirect)
if ! uci -q get firewall.simple_adblock_dns_redirect >/dev/null; then
uci -q set firewall.simple_adblock_dns_redirect=redirect
uci -q set firewall.simple_adblock_dns_redirect.name=simple_adblock_dns_hijack
uci -q set firewall.simple_adblock_dns_redirect.target=DNAT
uci -q set firewall.simple_adblock_dns_redirect.src=lan
uci -q set firewall.simple_adblock_dns_redirect.proto=tcpudp
uci -q set firewall.simple_adblock_dns_redirect.src_dport=53
uci -q set firewall.simple_adblock_dns_redirect.dest_port=53
fi
;;
ipset)
if ! uci -q get firewall.simple_adblock_ipset >/dev/null; then
uci -q set firewall.simple_adblock_ipset=ipset
uci -q set firewall.simple_adblock_ipset.name=adb
uci -q set firewall.simple_adblock_ipset.match=dest_net
uci -q set firewall.simple_adblock_ipset.storage=hash
uci -q set firewall.simple_adblock_ipset.enabled=1
_restart=1
fi
if ! uci -q get firewall.simple_adblock_ipset_rule >/dev/null; then
uci -q set firewall.simple_adblock_ipset_rule=rule
uci -q set firewall.simple_adblock_ipset_rule.name=simple_adblock_ipset_rule
uci -q set firewall.simple_adblock_ipset_rule.ipset=adb
uci -q set firewall.simple_adblock_ipset_rule.src=lan
uci -q set firewall.simple_adblock_ipset_rule.dest='*'
uci -q set firewall.simple_adblock_ipset_rule.proto=tcpudp
uci -q set firewall.simple_adblock_ipset_rule.target=REJECT
uci -q set firewall.simple_adblock_ipset_rule.enabled=1
fi
;;
*)
if ! uci -q get firewall.simple_adblock_dns_redirect >/dev/null; then
uci -q set firewall.simple_adblock_dns_redirect=redirect
uci -q set firewall.simple_adblock_dns_redirect.name=simple_adblock_dns_hijack
uci -q set firewall.simple_adblock_dns_redirect.target=DNAT
uci -q set firewall.simple_adblock_dns_redirect.src=lan
uci -q set firewall.simple_adblock_dns_redirect.proto=tcpudp
uci -q set firewall.simple_adblock_dns_redirect.src_dport=53
uci -q set firewall.simple_adblock_dns_redirect.dest_port=53
fi
if ! uci -q get firewall.simple_adblock_ipset >/dev/null; then
uci -q set firewall.simple_adblock_ipset=ipset
uci -q set firewall.simple_adblock_ipset.name=adb
uci -q set firewall.simple_adblock_ipset.match=dest_net
uci -q set firewall.simple_adblock_ipset.storage=hash
uci -q set firewall.simple_adblock_ipset.enabled=1
_restart=1
fi
if ! uci -q get firewall.simple_adblock_ipset_rule >/dev/null; then
uci -q set firewall.simple_adblock_ipset_rule=rule
uci -q set firewall.simple_adblock_ipset_rule.name=simple_adblock_ipset_rule
uci -q set firewall.simple_adblock_ipset_rule.ipset=adb
uci -q set firewall.simple_adblock_ipset_rule.src=lan
uci -q set firewall.simple_adblock_ipset_rule.dest='*'
uci -q set firewall.simple_adblock_ipset_rule.proto=tcpudp
uci -q set firewall.simple_adblock_ipset_rule.target=REJECT
uci -q set firewall.simple_adblock_ipset_rule.enabled=1
fi
;;
esac
esac
if [ -n "$(uci changes firewall)" ]; then
uci -q commit firewall
if [ -z "$_restart" ]; then
fw3Ops 'reload'
else
fw3Ops 'restart'
fi
fi
}
process_url() {
local label type D_TMP R_TMP
if [ -z "$1" ] || [ -z "$2" ] || [ -z "$3" ]; then return 1; fi
label="${1##*//}"; label="${label%%/*}";
if [ "$2" = 'hosts' ]; then
label="Hosts: $label"; filter="$hostsFilter";
else
label="Domains: $label"; filter="$domainsFilter";
fi
if [ "$3" = 'blocked' ]; then
type='Blocked'; D_TMP="$B_TMP";
else
type='Allowed'; D_TMP="$A_TMP";
fi
while [ -z "$R_TMP" ] || [ -e "$R_TMP" ]; do
R_TMP="$(mktemp -u -q -t ${packageName}_tmp.XXXXXXXX)"
done
if ! $dl_command "$1" $dl_flag "$R_TMP" 2>/dev/null || [ ! -s "$R_TMP" ]; then
output 1 "$_FAIL_"
output 2 "[DL] $type $label $__FAIL__\\n"
echo "Error: downloading '${1}'." >> "$sharedMemoryError"
else
sed -i "$filter" "$R_TMP"
if [ ! -s "$R_TMP" ]; then
output 1 "$_FAIL_"
output 2 "[DL] $type $label $__FAIL__\\n"
echo "Error: parsing '${1}'." >> "$sharedMemoryError"
else
cat "${R_TMP}" >> "$D_TMP"
output 1 "$_OK_"
output 2 "[DL] $type $label $__OK__\\n"
fi
fi
rm -f "$R_TMP"
return 0
}
download_lists() {
local hf w_filter j=0 R_TMP
tmpfs set message "${statusDownloading}..."
rm -f "$A_TMP" "$B_TMP" "$outputFile" "$outputCache" "$outputGzip"
if [ "$(awk '/^MemFree/ {print int($2/1000)}' "/proc/meminfo")" -lt 32 ]; then
output 3 'Low free memory, restarting resolver... '
if dnsOps 'quiet'; then
output_okn
else
output_fail
fi
fi
touch $A_TMP; touch $B_TMP;
output 1 'Downloading lists '
rm -f "$sharedMemoryError"
if [ -n "$blacklist_hosts_urls" ]; then
for hf in ${blacklist_hosts_urls}; do
if [ "$parallelDL" -gt 0 ]; then
process_url "$hf" 'hosts' 'blocked' &
else
process_url "$hf" 'hosts' 'blocked'
fi
done
fi
if [ -n "$blacklist_domains_urls" ]; then
for hf in ${blacklist_domains_urls}; do
if [ "$parallelDL" -gt 0 ]; then
process_url "$hf" 'domains' 'blocked' &
else
process_url "$hf" 'domains' 'blocked'
fi
done
fi
if [ -n "$whitelist_domains_urls" ]; then
for hf in ${whitelist_domains_urls}; do
if [ "$parallelDL" -gt 0 ]; then
process_url "$hf" 'domains' 'allowed' &
else
process_url "$hf" 'domains' 'allowed'
fi
done
fi
wait
[ -s "$sharedMemoryError" ] && tmpfs add error "$(cat "$sharedMemoryError")"
rm -f "$sharedMemoryError"
output 1 '\n'
[ -n "$blacklist_domains" ] && for hf in ${blacklist_domains}; do echo "$hf" | sed "$domainsFilter" >> $B_TMP; done
whitelist_domains="${whitelist_domains}
$(cat $A_TMP)"
[ -n "$whitelist_domains" ] && for hf in ${whitelist_domains}; do hf="$(echo "$hf" | sed 's/\./\\./g')"; w_filter="$w_filter/^${hf}$/d;/\\.${hf}$/d;"; done
[ ! -s "$B_TMP" ] && return 1
output 1 'Processing downloads '
output 2 'Sorting combined list '
tmpfs set message "$statusProcessing: sorting combined list"
if [ "$allowIDN" -gt 0 ]; then
if sort -u "$B_TMP" > "$A_TMP"; then
output_ok
else
output_failn
tmpfs add error 'Error: Sorting error.'
fi
else
if sort -u "$B_TMP" | grep -E -v '[^a-zA-Z0-9=/.-]' > "$A_TMP"; then
output_ok
else
output_failn
tmpfs add error 'Error: Sorting error.'
fi
fi
if [ "$targetDNS" = 'dnsmasq.conf' ] || \
[ "$targetDNS" = 'dnsmasq.ipset' ] || \
[ "$targetDNS" = 'dnsmasq.servers' ] || \
[ "$targetDNS" = 'unbound.adb_list' ]; then
# TLD optimization written by Dirk Brenken (dev@brenken.org)
output 2 'Optimizing combined list '
tmpfs set message "$statusProcessing: optimizing combined list"
# sed -E 'G;:t;s/(.*)(\.)(.*)(\n)(.*)/\1\4\5\2\3/;tt;s/(.*)\n(\.)(.*)/\3\2\1/' is actually slower than awk
if awk -F "." '{for(f=NF;f>1;f--)printf "%s.",$f;print $1}' "$A_TMP" > "$B_TMP"; then
if sort "$B_TMP" > "$A_TMP"; then
if awk '{if(NR=1){tld=$NF};while(getline){if($NF!~tld"\\."){print tld;tld=$NF}}print tld}' "$A_TMP" > "$B_TMP"; then
if awk -F "." '{for(f=NF;f>1;f--)printf "%s.",$f;print $1}' "$B_TMP" > "$A_TMP"; then
if sort -u "$A_TMP" > "$B_TMP"; then
output_ok
else
output_failn
tmpfs add error 'Error: Data file optimization.'
mv "$A_TMP" "$B_TMP"
fi
else
output_failn
tmpfs add error 'Error: Data file optimization.'
fi
else
output_failn
tmpfs add error 'Error: Data file optimization.'
mv "$A_TMP" "$B_TMP"
fi
else
output_failn
tmpfs add error 'Error: Data file optimization.'
fi
else
output_failn
tmpfs add error 'Error: Data file optimization.'
mv "$A_TMP" "$B_TMP"
fi
else
mv "$A_TMP" "$B_TMP"
fi
output 2 'Whitelisting domains '
tmpfs set message "$statusProcessing: whitelisting domains"
if sed -i "$w_filter" "$B_TMP"; then
output_ok
else
output_failn
tmpfs add error 'Error: Whitelist processing.'
fi
output 2 'Formatting merged file '
tmpfs set message "$statusProcessing: formatting merged file"
if [ -z "$outputFilterIPv6" ]; then
if sed "$outputFilter" "$B_TMP" > "$A_TMP"; then
output_ok
else
output_failn
tmpfs add error 'Error: Data file formatting.'
fi
else
case "$targetDNS" in
dnsmasq.addnhosts)
if sed "$outputFilter" "$B_TMP" > "$A_TMP" && \
sed "$outputFilterIPv6" "$B_TMP" >> "$A_TMP"; then
output_ok
else
output_failn
tmpfs add error 'Error: Data file formatting.'
fi
;;
esac
fi
case "$targetDNS" in
dnsmasq.addnhosts)
output 2 'Creating DNSMASQ addnhosts file '
tmpfs set message "$statusProcessing: creating DNSMASQ addnhosts file"
;;
dnsmasq.conf)
output 2 'Creating DNSMASQ config file '
tmpfs set message "$statusProcessing: creating DNSMASQ config file"
;;
dnsmasq.ipset)
output 2 'Creating DNSMASQ ipset file '
tmpfs set message "$statusProcessing: creating DNSMASQ ipset file"
;;
dnsmasq.servers)
output 2 'Creating DNSMASQ servers file '
tmpfs set message "$statusProcessing: creating DNSMASQ servers file"
;;
unbound.adb_list)
output 2 'Creating Unbound adb_list file '
tmpfs set message "$statusProcessing: creating Unbound adb_list file"
;;
esac
if mv "$A_TMP" "$outputFile"; then
output_ok
else
output_failn
tmpfs add error "Error: moving data file '${A_TMP}' to '${outputFile}'."
fi
if [ "$compressedCache" -gt 0 ]; then
output 2 'Creating compressed cache '
tmpfs set message "$statusProcessing: creating compressed cache"
if cacheOps 'createGzip'; then
output_ok
else
output_failn
tmpfs add error 'Error: creating compressed cache.'
fi
else
rm -f "$outputGzip"
fi
output 2 'Removing temporary files '
tmpfs set message "$statusProcessing: removing temporary files"
rm -f "/tmp/${packageName}_tmp.*" "$A_TMP" "$B_TMP" "$outputCache" || j=1
if [ $j -eq 0 ]; then
output_ok
else
output_failn
tmpfs add error 'Error: removing temporary files.'
fi
output 1 '\n'
}
boot() {
load_package_config
if create_lock; then
sleep "$bootDelay"
remove_lock
rc_procd start_service && rc_procd service_triggers
fi
}
start_service() {
is_enabled 'on_start' || return 1
local action status error message stats
if ! create_lock; then
output 3 "$serviceName: another instance is starting up "; output_fail
return 0
fi
status="$(tmpfs get status)"
error="$(tmpfs get error)"
message="$(tmpfs get message)"
stats="$(tmpfs get stats)"
action="$(tmpfs get triggers)"
if [ "$action" = 'download' ] || [ "$1" = 'download' ] || [ -n "$error" ]; then
action='download'
elif [ ! -s "$outputFile" ] && ! cacheOps 'test' && ! cacheOps 'testGzip'; then
action='download'
elif [ ! -s "$outputFile" ] && cacheOps 'testGzip' || cacheOps 'test'; then
action='restore'
elif [ "$action" = 'restart' ] || [ "$1" = 'restart' ]; then
action='restart'
elif [ -s "$outputFile" ] && [ -n "$status" ] && [ -z "$error" ]; then
if [ "$1" != 'hotplug' ]; then status; fi
exit 0
else
action='download'
fi
tmpfs del all
tmpfs set triggers
if is_chaos_calmer || ! is_ipset_procd; then
if [ "$forceDNS" -ne 0 ]; then
fw3Ops 'insert' 'dns_redirect'
else
fw3Ops 'remove' 'dns_redirect'
fi
if [ "$targetDNS" = 'dnsmasq.ipset' ]; then
fw3Ops 'insert' 'ipset'
else
fw3Ops 'remove' 'ipset'
fi
procd_open_instance 'main'
procd_set_param command /bin/true
procd_set_param stdout 1
procd_set_param stderr 1
procd_close_instance
else
procd_open_instance 'main'
procd_set_param command /bin/true
procd_set_param stdout 1
procd_set_param stderr 1
procd_open_data
json_add_array firewall
if [ "$forceDNS" -ne 0 ]; then
json_add_object ''
json_add_string type redirect
json_add_string name simple_adblock_dns_redirect
json_add_string target DNAT
json_add_string src lan
json_add_string proto tcpudp
json_add_string src_dport 53
json_add_string dest_port 53
json_add_string reflection 0
json_close_object
fi
if [ "$targetDNS" = 'dnsmasq.ipset' ]; then
json_add_object ''
json_add_string type ipset
json_add_string name adb
json_add_string match dest_net
json_add_string storage hash
json_add_string enabled 1
json_close_object
json_add_object ''
json_add_string type rule
json_add_string name simple_adblock_ipset_rule
json_add_string ipset adb
json_add_string src lan
json_add_string dest '*'
json_add_string proto tcpudp
json_add_string target REJECT
json_add_string enabled 1
json_close_object
fi
json_close_array
procd_close_data
procd_close_instance
fi
if [ "$action" = 'restore' ]; then
output 0 "Starting $serviceName... "
output 3 "Starting $serviceName...\\n"
tmpfs set status "$statusStarting"
if cacheOps 'testGzip' && ! cacheOps 'test' && [ ! -s "$outputFile" ]; then
output 3 'Found compressed cache file, unpacking it '
tmpfs set message 'found compressed cache file, unpacking it.'
if cacheOps 'unpackGzip'; then
output_okn
else
output_fail
output "$_ERROR_: $serviceName failed to unpack compressed cache!\\n"
action='download'
fi
fi
if cacheOps 'test' && [ ! -s "$outputFile" ]; then
output 3 'Found cache file, reusing it '
tmpfs set message 'found cache file, reusing it.'
if cacheOps 'restore'; then
output_okn
dnsOps 'on_start'
else
output_fail
output "$_ERROR_: $serviceName failed to move '$outputCache' to '$outputFile'!\\n"
action='download'
fi
fi
fi
case "$action" in
download)
if [ -s "$outputFile" ] || cacheOps 'test' || cacheOps 'testGzip'; then
output 0 "Force-reloading $serviceName... "
output 3 "Force-reloading $serviceName...\\n"
tmpfs set status "$statusForceReloading"
else
output 0 "Starting $serviceName... "
output 3 "Starting $serviceName...\\n"
tmpfs set status "$statusStarting"
fi
download_lists
dnsOps 'on_start'
;;
restart)
output 0 "Restarting $serviceName... "
output 3 "Restarting $serviceName...\\n"
tmpfs set status "$statusRestarting"
dnsOps 'on_start'
;;
start)
output 0 "Starting $serviceName... "
output 3 "Starting $serviceName...\\n"
tmpfs set status "$statusStarting"
dnsOps 'on_start'
;;
esac
if [ -s "$outputFile" ] && [ "$(tmpfs get status)" != "$statusFail" ]; then
output 0 "$__OK__\\n";
c="$(wc -l < "$outputFile")"
output 3 "$serviceName is blocking $c domains (with ${targetDNS}) "; output_okn
tmpfs del message
tmpfs set status "$statusSuccess: $c domains blocked (with ${targetDNS})."
error="$(tmpfs get error)"
if [ -n "$error" ]; then
output "$(str_replace "$error" "Error:" "$_ERROR_:")\\n"
fi
else
output 0 "$__FAIL__\\n";
tmpfs set status "$statusFail"
tmpfs add error 'Error: Failed to create blocklist or restart DNS resolver.'
fi
remove_lock
}
service_started() { is_ipset_procd && procd_set_config_changed firewall; }
service_stopped() { is_ipset_procd && procd_set_config_changed firewall; }
restart_service() { rc_procd start_service 'restart'; }
reload_service() { restart_service; }
restart() { restart_service; }
reload() { restart_service; }
dl() { rc_procd start_service 'download'; }
killcache() {
rm -f "$addnhostsCache" "$addnhostsGzip"
rm -f "$dnsmasqCache" "$dnsmasqGzip"
rm -f "$ipsetCache" "$ipsetGzip"
rm -f "$serversCache" "$serversGzip"
rm -f "$unboundCache" "$unboundGzip"
return 0
}
status() {
local status="$(tmpfs get status)" error="$(tmpfs get error)" message="$(tmpfs get message)"
if [ -n "$status" ] && [ -n "$message" ]; then
status="${status}: $message"
fi
[ -n "$status" ] && output "$serviceName $status\\n"
[ -n "$error" ] && output "$error\\n"
}
stop_service() {
load_package_config
fw3Ops 'remove' 'all'
if [ -s "$outputFile" ]; then
output "Stopping $serviceName... "
cacheOps 'create'
if dnsOps 'on_stop'; then
led_off "$led"
output 0 "$__OK__\\n"; output_okn
tmpfs set status "$statusStopped"
tmpfs del message
else
output 0 "$__FAIL__\\n"; output_fail
tmpfs set status "$statusFail"
tmpfs add error "Error: error stopping $serviceName."
output "$_ERROR_: error stopping $serviceName!\\n"
fi
fi
}
check() {
load_package_config
local string="$1"
local c="$(grep -c "$string" "$outputFile")"
if [ ! -s "$outputFile" ]; then
echo "No blacklist ('$outputFile') found."
elif [ -z "$string" ]; then
echo "Usage: /etc/init.d/${packageName} check string"
elif [ "$c" -gt 0 ]; then
if [ "$c" -gt 1 ]; then
echo "Found $c matches for '$string' in '$outputFile':"
else
echo "Found 1 match for '$string' in '$outputFile':"
fi
case "$targetDNS" in
dnsmasq.addnhosts)
grep "$string" "$outputFile" | sed 's|^127.0.0.1 ||;s|^:: ||;';;
dnsmasq.conf)
grep "$string" "$outputFile" | sed 's|local=/||;s|/$||;';;
dnsmasq.ipset)
grep "$string" "$outputFile" | sed 's|ipset=/||;s|/adb$||;';;
dnsmasq.servers)
grep "$string" "$outputFile" | sed 's|server=/||;s|/$||;';;
unbound.adb_list)
grep "$string" "$outputFile" | sed 's|^local-zone: "||;s|" static$||;';;
esac
else
echo "The $string is not found in current blacklist ('$outputFile')."
fi
}
sizes() {
local i
load_package_config
echo "# $(date)"
for i in $blacklist_domains_urls; do
[ "${i//melmac}" != "$i" ] && continue
if $dl_command "$i" $dl_flag /tmp/sast 2>/dev/null && [ -s /tmp/sast ]; then
echo "# File size: $(du -sh /tmp/sast | awk '{print $1}')"
if compare_versions "$(du -sk /tmp/sast)" "500"; then
echo "# blocklist too big for most routers"
elif compare_versions "$(du -sk /tmp/sast)" "100"; then
echo "# blocklist may be too big for some routers"
fi
rm -rf /tmp/sast
echo " list blacklist_domains_url '$i'"
echo ""
else
echo "# site was down on last check"
echo "# list blacklist_domains_url '$i'"
echo ""
fi
done
for i in $blacklist_hosts_urls; do
if $dl_command "$i" $dl_flag /tmp/sast 2>/dev/null && [ -s /tmp/sast ]; then
echo "# File size: $(du -sh /tmp/sast | awk '{print $1}')"
if compare_versions "$(du -sk /tmp/sast)" "500"; then
echo "# blocklist too big for most routers"
elif compare_versions "$(du -sk /tmp/sast)" "100"; then
echo "# blocklist may be too big for some routers"
fi
rm -rf /tmp/sast
echo " list blacklist_hosts_url '$i'"
echo ""
else
echo "# site was down on last check"
echo "# list blacklist_hosts_url '$i'"
echo ""
fi
done
}