#!/bin/sh /etc/rc.common
# Copyright (C) 2018-2023 Ycarus (Yannick Chabanois) <ycarus@zugaina.org> for OpenMPTCProuter

START=98
STOP=10
USE_PROCD=1
EXTRA_COMMANDS="reload_rules bypass_asn"

. /usr/lib/unbound/iptools.sh

# Still used by ndpi
if [ -e /usr/sbin/iptables-nft ]; then
	IPTABLES="/usr/sbin/iptables-nft"
	IPTABLESRESTORE="/usr/sbin/iptables-nft-restore"
	IPTABLESSAVE="/usr/sbin/iptables-nft-save"
	IP6TABLES="/usr/sbin/ip6tables-nft"
	IP6TABLESRESTORE="/usr/sbin/ip6tables-nft-restore"
	IP6TABLESSAVE="/usr/sbin/ip6tables-nft-save"
else
	IPTABLES="/usr/sbin/iptables"
	IPTABLESRESTORE="/usr/sbin/iptables-restore"
	IPTABLESSAVE="/usr/sbin/iptables-save"
	IP6TABLES="/usr/sbin/ip6tables"
	IP6TABLESRESTORE="/usr/sbin/ip6tables-restore"
	IP6TABLESSAVE="/usr/sbin/ip6tables-save"
fi

_add_proto() {
	protoname=$1
	[ -z "$protoname" ] && return
	if [ "$(dd if=/proc/net/xt_ndpi/proto bs=4096 2> /dev/null | grep $protoname)" = "" ]; then
		echo "add_custom $protoname" >/proc/net/xt_ndpi/proto
	fi
	allurls="$(dd if=/proc/net/xt_ndpi/host_proto bs=4096 2> /dev/null)"
	hosts="$( uci -q get omr-bypass.$protoname.url )"
	for url in $hosts; do
		if [ "$(echo "$allurls" | grep -i ^${protoname}: | grep $url)" = "" ]; then
			echo "$protoname:$url" >/proc/net/xt_ndpi/host_proto
		fi
	done
	ip="$( uci -q get omr-bypass.$protoname.ip )"
	for ip in $ips; do
		if [ "$(echo "$allurls" | grep -i ^${protoname}: | grep $ip)" = "" ]; then
			echo "$protoname:$ip" >/proc/net/xt_ndpi/ip_proto
		fi
	done
}

_add_proto_without_ndpi() {
	protoname=$1
	[ -z "$protoname" ] && return
	echo "$protoname" >> /usr/share/omr-bypass/omr-bypass-proto.lst
}

_bypass_ip() {
	local ip=$1
	local type=$2
	[ -z "$type" ] && type="all"
	valid_ip4=$( valid_subnet4 $ip)
	valid_ip6=$( valid_subnet6 $ip)
	if [ "$valid_ip4" = "ok" ]; then
		uci -q add_list firewall.omr_dst_bypass_${type}_4.entry="$ip"
		uci -q set firewall.omr_dst_bypass_${type}_4.enabled='1'
		uci -q set firewall.omr_dst_bypass_${type}_dstip_4.enabled='1'
	elif [ "$valid_ip6" = "ok" ]; then
		uci -q add_list firewall.omr_dst_bypass_${type}_6.entry="$ip"
		uci -q set firewall.omr_dst_bypass_${type}_6.enabled='1'
		uci -q set firewall.omr_dst_bypass_${type}_dstip_6.enabled='1'
	fi
}

_bypass_domains() {
	local domain
	local intf
	local enabled
	config_get domain $1 name
	config_get intf $1 interface
	config_get enabled $1 enabled
	config_get noipv6 $1 noipv6
	config_get family $1 family
	[ -z "$intf" ] && intf="all"
	config_get vpn $1 vpn
	[ "$vpn" = "1" ] && intf="srv_vpn1"
	#echo "bypass $domain $enabled $family $intf $vpn"
	[ "$enabled" = "0" ] && return
	[ -z "$domain" ] && return
	[ -z "$family" ] && family="ipv4ipv6"
	[ -z "$noipv6" ] && noipv6="0"
	if [ "$(echo $domain | grep '\.$')" != "" ] || [ "$(echo $domain | grep '\.\*$')" != "" ]; then
		tlds=`curl --max-time 4 -s -k https://data.iana.org/TLD/tlds-alpha-by-domain.txt`
		domain="$(echo '"$domain"' | sed 's:*::')"
		domainlist=""
		# construct list of domains to query
		i=0
		for tld in $tlds; do
			i=$((i+1))
			# trim off header
			if [ "$i" -lt "12" ] || [ "$i" -gt "50" ]; then
				continue
			fi 
			# add to command
			domainlist="${domainlist} ${domain}${tld}"
		done
		domainlist="$(echo $domainlist  `# Get the list of valid domains, pass it to awk` \
			| awk '{print tolower($0)}'   `# awk lowercases the whole string and passes it to ` \
			| xargs -n8 -P12              `# xargs sends 8 arguments at a time to` \
			dig a +timeout=1 +tries=1 +retry=1 +nocmd +noall +answer `# dig, which passes results (if any) to` \
			| awk '{print $1}'            `# awk, which outputs queried domain to` \
			| sed -e 's/.$//'             `# sed, which trims off the trailing dot (google.com. -> google.com)` to \
			| grep $domain                `# grep, only keep wanted domain` \
			| awk '{for (i=1;i<=NF;i++) if (!a[$i]++) printf("%s%s",$i,FS)}{printf("\n")}')" # deduplicate
		for validdomain in $domainlist; do
			_bypass_domain $validdomain $intf $family $noipv6
		done
	else
		#echo "_bypass_domain $domain $intf $family $noipv6"
		_bypass_domain $domain $intf $family $noipv6
	fi
}

_bypass_domain() {
	local domain=$1
	local intf=$2
	local family=$3
	local noipv6=$4
	intf=$(echo $intf | sed -e 's/\./_/')
	[ -z "$intf" ] && intf="all"
	if [ -n "$domain" ]; then
		domain=$(echo $domain | sed 's:^\.::')
		#logger -t "omr-bypass" "Get IPs of $domain..."
		if [ -z $RELOAD ]; then
			resolve=$(dig a +timeout=1 +tries=1 +nocmd +noall +answer $domain | grep -v CNAME | awk '{print $5}')
			for ip in $resolve; do
				_bypass_ip $ip $intf
			done
			if [ "$disableipv6" = "0" ]; then
				resolve=$(dig aaaa +timeout=1 +tries=1 +nocmd +noall +answer $domain | grep AAAA | awk '{print $5}')
				for ip in $resolve; do
					_bypass_ip $ip $intf
				done
			fi
		fi
		if [ "$(uci -q get dhcp.omr_dst_bypass_$intf | grep /$domain/)" = "" ]; then
			uci -q add_list dhcp.omr_dst_bypass_$intf.domain="$domain"
			add_domains="true"
		fi
		if [ "$(uci -q get dhcp.@dnsmasq[0].noipv6 | grep /$domain/)" = "" ] && [ "$noipv6" = "1" ]; then
			uci -q add_list dhcp.@dnsmasq[0].noipv6="$domain"
		fi
		#logger -t "omr-bypass" "Get IPs of $domain... Done"
	fi
}

_bypass_mac() {
	local mac
	local intf
	local enabled
	config_get mac $1 mac
	config_get intf $1 interface
	config_get enabled $1 enabled
	[ "$enabled" = "0" ] && return
	intf=$(echo $intf | sed -e 's/\./_/')
	local intfid="$(uci -q get omr-bypass.$intf.id)"

	[ -z "$intf" ] && intf="all"
	[ -z "$mac" ] && return
	if [ "$disableipv6" = "0" ]; then
		protocol="4 6"
	else
		protocol="4"
	fi
	for ipv46 in $protocol; do
		uci -q batch <<-EOF
			add_list firewall.omr_dst_bypass_${intf}_mac_${ipv46}.src_mac="$mac"
			set firewall.omr_dst_bypass_${intf}_mac_${ipv46}.enabled='1'
		EOF
	done
}

_bypass_lan_ip() {
	local ip
	local intf
	local enabled
	config_get ip $1 ip
	config_get intf $1 interface
	config_get enabled $1 enabled
	[ "$enabled" = "0" ] && return
	intf=$(echo $intf | sed -e 's/\./_/')
	#[ -n "$intf" ] && [ -z "$(ipset --list | grep omr_dst_bypass_$intf)" ] && return
	local intfid="$(uci -q get omr-bypass.$intf.id)"

	[ -z "$intf" ] && intf="all"
	[ -z "$ip" ] && return
	valid_ip4=$(valid_subnet4 $ip)
	valid_ip6=$(valid_subnet6 $ip)
	if [ "$valid_ip4" = "ok" ]; then
		uci -q batch <<-EOF
			add_list firewall.omr_dst_bypass_${intf}_srcip_4.src_ip="$ip"
			set firewall.omr_dst_bypass_${intf}_srcip_4.enabled='1'
		EOF
	elif [ "$valid_ip6" = "ok" ] && [ "$disableipv6" = "0" ]; then
		uci -q batch <<-EOF
			add_list firewall.omr_dst_bypass_${intf}_srcip_6.src_ip="$ip"
			set firewall.omr_dst_bypass_${intf}_srcip_6.enabled='1'
		EOF
	fi
}

_bypass_dest_port() {
	local intf
	local enabled
	local dport
	local proto
	config_get dport $1 dport
	config_get proto $1 proto
	config_get intf $1 interface
	config_get enabled $1 enabled
	[ "$enabled" = "0" ] && return
	intf=$(echo $intf | sed -e 's/\./_/')
	#[ -n "$intf" ] && [ -z "$(ipset --list | grep omr_dst_bypass_$intf)" ] && return
	local intfid="$(uci -q get omr-bypass.$intf.id)"

	[ -z "$intf" ] && intf="all"
	[ -z "$dport" ] && return
	dport="$(echo $dport | sed 's/:/-/')"
	[ -z "$proto" ] && return
	if [ "$disableipv6" = "0" ]; then
		protocol="4 6"
	else
		protocol="4"
	fi

	if [ "$proto" = "tcp" ] || [ "$proto" = "tcp udp" ]; then
		for ipv46 in $protocol; do
			uci -q batch <<-EOF
				add_list firewall.omr_dst_bypass_${intf}_dstport_tcp_${ipv46}.dest_port="$dport"
				set firewall.omr_dst_bypass_${intf}_dstport_tcp_${ipv46}.enabled='1'
			EOF
		done
	fi
	if [ "$proto" = "udp" ] || [ "$proto" = "tcp udp" ]; then
		for ipv46 in $protocol; do
			uci -q batch <<-EOF
				add_list firewall.omr_dst_bypass_${intf}_dstport_udp_${ipv46}.dest_port="$dport"
				set firewall.omr_dst_bypass_${intf}_dstport_udp_${ipv46}.enabled='1'
			EOF
		done
	fi
}

_bypass_src_port() {
	local intf
	local enabled
	local sport
	local proto
	config_get sport $1 sport
	config_get proto $1 proto
	config_get intf $1 interface
	config_get enabled $1 enabled
	[ "$enabled" = "0" ] && return
	intf=$(echo $intf | sed -e 's/\./_/')
	#[ -n "$intf" ] && [ -z "$(ipset --list | grep omr_dst_bypass_$intf)" ] && return
	local intfid="$(uci -q get omr-bypass.$intf.id)"

	[ -z "$intf" ] && intf="all"
	[ -z "$sport" ] && return
	sport="$(echo $sport | sed 's/:/-/')"
	[ -z "$proto" ] && return
	if [ "$disableipv6" = "0" ]; then
		protocol="4 6"
	else
		protocol="4"
	fi

	if [ "$proto" = "tcp" ] || [ "$proto" = "tcp udp" ]; then
		for ipv46 in $protocol; do
			uci -q batch <<-EOF
				add_list firewall.omr_dst_bypass_${intf}_srcport_tcp_${ipv46}.src_port="$sport"
				set firewall.omr_dst_bypass_${intf}_srcport_tcp_${ipv46}.enabled='1'
			EOF
		done
	fi
	if [ "$proto" = "udp" ] || [ "$proto" = "tcp udp" ]; then
		for ipv46 in $protocol; do
			uci -q batch <<-EOF
				add_list firewall.omr_dst_bypass_${intf}_srcport_udp_${ipv46}.src_port="$sport"
				set firewall.omr_dst_bypass_${intf}_srcport_udp_${ipv46}.enabled='1'
			EOF
		done
	fi
}

_bypass_proto() {
	local proto
	local intf
	local enabled
	config_get proto $1 proto
	config_get intf $1 interface
	config_get enabled $1 enabled
	config_get ndpi $1 ndpi
	config_get noipv6 $1 noipv6
	config_get family $1 family
	config_get vpn $1 vpn
	[ "$vpn" = "1" ] && intf="srv_vpn1"

	[ "$enabled" = "0" ] && return
	[ -z "$noipv6" ] && noipv6="0"
	[ -z "$family" ] && family="ipv4ipv6"
	intf=$(echo $intf | sed -e 's/\./_/')
	#[ -n "$intf" ] && [ -z "$(ipset --list | grep omr_dst_bypass_$intf)" ] && return
	local intfid="$(uci -q get omr-bypass.$intf.id)"

	[ -z "$intf" ] && intf="all"
	[ -z "$proto" ] && return
	if [ "$(uci -q get openmptcprouter.settings.ndpi)" != "0" ] && [ "$ndpi" != "0" ] && [ "$vpn" != "1" ]; then
		if [ "$intf" = "all" ]; then
			if [ "$family" = "ipv4" ] || [ "$family" = "ipv4ipv6" ]; then
				$IPTABLESRESTORE -w --wait=60  --noflush <<-EOF
				*mangle
				-A omr-bypass-dpi -m ndpi --proto $proto -j MARK --set-mark 0x4539
				-A omr-bypass-dpi -m mark --mark 0x4539 -j RETURN
				COMMIT
				EOF
			fi
			if [ "$disableipv6" = "0" ] && ([ "$family" = "ipv6" ] || [ "$family" = "ipv4ipv6" ]); then
				$IP6TABLESRESTORE -w --wait=60  --noflush <<-EOF
				*mangle
				-A omr-bypass6-dpi -m ndpi --proto $proto -j MARK --set-mark 0x6539
				-A omr-bypass6-dpi -m mark --mark 0x6539 -j RETURN
				COMMIT
				EOF
			fi
		else
			if [ "$family" = "ipv4" ] || [ "$family" = "ipv4ipv6" ]; then
				$IPTABLESRESTORE -w --wait=60  --noflush <<-EOF
				*mangle
				-A omr-bypass-dpi -m ndpi --proto $proto -j MARK --set-mark 0x4539$intfid
				-A omr-bypass-dpi -m mark --mark 0x4539$intfid -j RETURN
				COMMIT
				EOF
			fi
			if [ "$disableipv6" = "0" ] && ([ "$family" = "ipv6" ] || [ "$family" = "ipv4ipv6" ]); then
				$IP6TABLESRESTORE -w --wait=60  --noflush <<-EOF
				*mangle
				-A omr-bypass6-dpi -m ndpi --proto $proto -j MARK --set-mark 0x6539$intfid
				-A omr-bypass6-dpi -m mark --mark 0x6539$intfid -j RETURN
				COMMIT
				EOF
			fi
		fi
	fi
	# Use dnsmasq ipset to bypass domains of the proto
	local domains
	domains="$(cat /proc/net/xt_ndpi/host_proto | grep -i $proto: | sed -e "s/$proto://i" -e 's/*//' -e 's/,/ /g')"
	if [ -n "$domains" ]; then
		tlds=`curl --max-time 4 -s -k https://data.iana.org/TLD/tlds-alpha-by-domain.txt`
		for domain in $domains; do
			if [ -n "$domain" ]; then
				domain="$(echo $domain | sed 's/^\.//')"
				if [ "$(echo $domain | grep '\.$')" != "" ]; then
					domainlist=""
					# construct list of domains to query
					i=0
					for tld in $tlds; do
						i=$((i+1))
						# trim off header
						if [ "$i" -lt "12" ] || [ "$i" -gt "50" ]; then
							continue
						fi 
						# add to command
						domainlist="${domainlist} ${domain}${tld}"
					done
					domainlist="$(echo $domainlist  `# Get the list of valid domains, pass it to awk` \
						| awk '{print tolower($0)}'   `# awk lowercases the whole string and passes it to ` \
						| xargs -n8 -P12              `# xargs sends 8 arguments at a time to` \
							dig a +timeout=1 +tries=1 +retry=1 +nocmd +noall +answer `# dig, which passes results (if any) to` \
						| awk '{print $1}'            `# awk, which outputs queried domain to` \
						| sed -e 's/.$//'             `# sed, which trims off the trailing dot (google.com. -> google.com)` to \
						| grep $domain                `# grep, only keep wanted domain` \
						| awk '{for (i=1;i<=NF;i++) if (!a[$i]++) printf("%s%s",$i,FS)}{printf("\n")}')" # deduplicate
					for validdomain in $domainlist; do
						_bypass_domain $validdomain $intf $family $noipv6
					done
				else
					_bypass_domain $domain $intf $family $noipv6
				fi
			fi
		done
	fi
}

_bypass_proto_without_ndpi() {
	local proto
	local intf
	local enabled
	config_get proto $1 proto
	config_get intf $1 interface
	config_get enabled $1 enabled
	config_get ndpi $1 ndpi "0"
	config_get noipv6 $1 noipv6
	config_get family $1 family
	config_get vpn $1 vpn
	[ "$vpn" = "1" ] && intf="srv_vpn1"

	[ "$enabled" = "0" ] && return
	[ -z "$noipv6" ] && noipv6="0"
	[ -z "$family" ] && family="ipv4ipv6"
	intf=$(echo $intf | sed -e 's/\./_/')
	#[ -n "$intf" ] && [ -z "$(ipset --list | grep omr_dst_bypass_$intf)" ] && return
	local intfid="$(uci -q get omr-bypass.$intf.id)"

	[ -z "$intf" ] && intf="all"
	[ "$intf" = "all" ] && intfid=""
	[ -z "$proto" ] && return
	if [ "$(uci -q get openmptcprouter.settings.ndpi)" == "0" ] || [ "$ndpi" == "0" ] || [ "$vpn" = "1" ]; then
		ALLIPS=$(sqlite3 /usr/share/omr-bypass/omr-bypass.db "select ip from ipproto where proto=\"$proto\";" ".exit")
		if [ -n "$ALLIPS" ]; then
			if [ "$vpn" != "1" ]; then
				uci -q batch <<-EOF >/dev/null
					set firewall.bypass_$proto=ipset
					set firewall.bypass_$proto.name="bypass_$proto"
					set firewall.bypass_$proto.match='dest_ip'
					set firewall.bypass_$proto.family='ipv4'
					set firewall.bypass_$proto_rule=rule
					set firewall.bypass_$proto_rule.name="bypass_$proto"
					set firewall.bypass_$proto_rule.src='lan'
					set firewall.bypass_$proto_rule.dest='*'
					set firewall.bypass_$proto_rule.target='MARK'
					set firewall.bypass_$proto_rule.set_xmark="0x4539${intfid}"
					commit firewall
				EOF
				uci -q batch <<-EOF >/dev/null
					set firewall.bypass6_$proto=ipset
					set firewall.bypass6_$proto.name="bypas6s_$proto"
					set firewall.bypass6_$proto.match='dest_ip'
					set firewall.bypass6_$proto.family='ipv6'
					set firewall.bypass6_$proto_rule=rule
					set firewall.bypass6_$proto_rule.name="bypass6_$proto"
					set firewall.bypass6_$proto_rule.src='lan'
					set firewall.bypass6_$proto_rule.dest='*'
					set firewall.bypass6_$proto_rule.target='MARK'
					set firewall.bypass6_$proto_rule.set_xmark="0x6539${intfid}"
					commit firewall
				EOF
				#if [ "$intfid" != "" ]; then
				#	uci -q batch <<-EOF >/dev/null
				#		delete network.${1}_fw_rule=rule
				#		set network.${1}_fw_rule=rule
				#		set network.${1}_fw_rule.priority=1
				#		set network.${1}_fw_rule.mark=0x539${intfid}
				#		set network.${1}_fw_rule.lookup=${intfid}
				#		delete network.${1}_fw_rule6=rule6
				#		set network.${1}_fw_rule6=rule6
				#		set network.${1}_fw_rule6.priority=1
				#		set network.${1}_fw_rule6.mark=0x6539${intfid}
				#		set network.${1}_fw_rule6.lookup=${intfid}
				#		commit network
				#	EOF
				#fi

				#ipset -q flush bypass_$proto > /dev/null 2>&1
				#ipset -q flush bypass6_$proto > /dev/null 2>&1
				#ipset -q --exist restore <<-EOF
				#create bypass_$proto hash:net hashsize 64
				#create bypass6_$proto hash:net family inet6 hashsize 64
				#EOF
			fi
			for ip in $ALLIPS; do
				valid_ip4=$( valid_subnet4 $ip)
				valid_ip6=$( valid_subnet6 $ip)
				if [ "$valid_ip4" = "ok" ]; then
					if [ "$vpn" != "1" ]; then
						#ipset -q add bypass_$proto $ip
						uci -q add_list firewall.bypass_$proto.entry="$ip"
					else
						#ipset -q add omr_dst_bypass_$intf $ip
						uci -q add_list firewall.omr_dst_bypass_${intf}_4.entry="$ip"
					fi
				elif [ "$valid_ip6" = "ok" ]; then
					if [ "$vpn" != "1" ]; then
						#ipset -q add bypass6_$proto $ip
						uci -q add_list firewall.bypass6_$proto.entry=$ip
					else
						#ipset -q add omr6_dst_bypass_$intf $ip
						uci -q add_list firewall.omr_dst_bypass_${intf}_6.entry="$ip"
					fi
				fi
			done
		fi
	fi
	# Use dnsmasq ipset to bypass domains of the proto
	local domains
	#domains="$(cat /proc/net/xt_ndpi/host_proto | grep -i $proto: | sed -e "s/$proto://i" -e 's/*//' -e 's/,/ /g')"
	domains=$(sqlite3 /usr/share/omr-bypass/omr-bypass.db "select host from hostproto where proto='"$proto"';" ".exit")
	if [ -n "$domains" ]; then
		tlds=`curl --max-time 4 -s -k https://data.iana.org/TLD/tlds-alpha-by-domain.txt`
		for domain in $domains; do
			if [ -n "$domain" ]; then
				domain="$(echo $domain | sed 's/^\.//')"
				if [ "$(echo $domain | grep '\.$')" != "" ]; then
					domainlist=""
					# construct list of domains to query
					i=0
					for tld in $tlds; do
						i=$((i+1))
						# trim off header
						if [ "$i" -lt "2" ] || [ "${#tld}" -gt "3" ]; then
							continue
						fi 
						# add to command
						domainlist="${domainlist} ${domain}${tld}"
					done
					domainlist="$(echo $domainlist  `# Get the list of valid domains, pass it to awk` \
						| awk '{print tolower($0)}'   `# awk lowercases the whole string and passes it to ` \
						| xargs -n8 -P12              `# xargs sends 8 arguments at a time to` \
							dig a +timeout=1 +tries=1 +retry=1 +nocmd +noall +answer `# dig, which passes results (if any) to` \
						| awk '{print $1}'            `# awk, which outputs queried domain to` \
						| sed 's/.$//'             `# sed, which trims off the trailing dot (google.com. -> google.com) to` \
						| grep $domain                `# grep, only keep wanted domain` \
						| awk '{for (i=1;i<=NF;i++) if (!a[$i]++) printf("%s%s",$i,FS)}{printf("\n")}')" # deduplicate
					for validdomain in $domainlist; do
						_bypass_domain $validdomain $intf $family $noipv6
					done
				else
					_bypass_domain $domain $intf $family $noipv6
				fi
			fi
		done
	fi
}

_intf_rule_ss_rules() {
	cat >> /etc/firewall.omr-bypass <<-EOF
		nft insert rule inet fw4 ss_rules_pre_tcp ip daddr @omr_dst_bypass_${intf}_4 accept
		nft insert rule inet fw4 ss_rules_local_out ip daddr @omr_dst_bypass_${intf}_4 accept
	EOF
	if [ "$disableipv6" = "0" ]; then
		cat >> /etc/firewall.omr-bypass <<-EOF
			nft insert rule inet fw4 ss_rules_pre_tcp ip6 daddr @omr_dst_bypass_${intf}_6 accept
			nft insert rule inet fw4 ss_rules_local_out ip6 daddr @omr_dst_bypass_${intf}_6 accept
		EOF
	fi
}

_intf_rule_v2ray_rules() {
	cat >> /etc/firewall.omr-bypass <<-EOF
		nft insert rule inet fw4 v2r_rules_pre_tcp ip daddr @omr_dst_bypass_${intf}_4 accept
		nft insert rule inet fw4 v2r_rules_local_out ip daddr @omr_dst_bypass_${intf}_4 accept
	EOF
	if [ "$disableipv6" = "0" ]; then
		cat >> /etc/firewall.omr-bypass <<-EOF
			nft insert rule inet fw4 v2r_rules_pre_tcp ip6 daddr @omr_dst_bypass_${intf}_6 accept
			nft insert rule inet fw4 v2r_rules_local_out ip6 daddr @omr_dst_bypass_${intf}_6 accept
		EOF
	fi
}

_intf_rule_xray_rules() {
	cat >> /etc/firewall.omr-bypass <<-EOF
		nft insert rule inet fw4 xr_rules_pre_tcp ip daddr @omr_dst_bypass_${intf}_4 accept
		nft insert rule inet fw4 xr_rules_local_out ip daddr @omr_dst_bypass_${intf}_4 accept
	EOF
	if [ "$disableipv6" = "0" ]; then
		cat >> /etc/firewall.omr-bypass <<-EOF
			nft insert rule inet fw4 xr_rules_pre_tcp ip6 daddr @omr_dst_bypass_${intf}_6 accept
			nft insert rule inet fw4 xr_rules_local_out ip6 daddr @omr_dst_bypass_${intf}_6 accept
		EOF
	fi
}

_intf_rule() {
	local intf
	[ "$1" = "all" ] && intf="all"
	[ -z "$intf" ] && intf=$(ifstatus "$1" | jsonfilter -q -e '@["l3_device"]')
	[ -n "$(echo $intf | grep '@')" ] && intf=$(ifstatus "$1" | jsonfilter -q -e '@["device"]')
	[ -z "$intf" ] && config_get intf $1 device
	[ -n "$(echo $intf | grep '/')" ] && return
	#count=$((count+1))
	[ "$intf" != "all" ] && config_get count $1 metric
	[ "$intf" = "all" ] && count=""
	local mode
	#config_get mode $1 multipath "off"
	#[ "$mode" = "off" ] && return
	[ "$intf" != "all" ] && [ -z "$count" ] && return
	[ -z "$intf" ] && return
	intf=$(echo $intf | sed -e 's/\./_/')
	intf=$(echo $intf | sed -e 's/-/_/')
	[ "$(echo $1 | grep _dev)" != "" ] && return
	[ "$intf" = "lo" ] && return
	[ -z "$intf" ] && return
#	[ -z "$RELOAD" ] || [ "$(uci show firewall.omr_dst_bypass_$intf_4)" = "" ] && {
		#unset RELOAD
		#echo "firewall omr_dst_bypass ipset"
		uci -q batch <<-EOF
			set firewall.omr_dst_bypass_${intf}_4=ipset
			set firewall.omr_dst_bypass_${intf}_4.name="omr_dst_bypass_${intf}_4"
			set firewall.omr_dst_bypass_${intf}_4.match='dest_ip'
			set firewall.omr_dst_bypass_${intf}_4.family='ipv4'
			set firewall.omr_dst_bypass_${intf}_4.enabled='1'
			set firewall.omr_dst_bypass_${intf}_6=ipset
			set firewall.omr_dst_bypass_${intf}_6.name="omr_dst_bypass_${intf}_6"
			set firewall.omr_dst_bypass_${intf}_6.match='dest_ip'
			set firewall.omr_dst_bypass_${intf}_6.family='ipv6'
			set firewall.omr_dst_bypass_${intf}_6.enabled='1'
		EOF
		#echo "firewall omr_dst_bypass rules"
		if [ "$disableipv6" = "0" ]; then
			protocol="4 6"
		else
			protocol="4"
		fi
		for ipv46 in $protocol; do
			#echo "ipv46: $ipv46 for $intf"
			uci batch <<-EOF
				set firewall.omr_dst_bypass_${intf}_dstip_${ipv46}=rule
				set firewall.omr_dst_bypass_${intf}_dstip_${ipv46}.name="omr_dst_bypass_${intf}_rule"
				set firewall.omr_dst_bypass_${intf}_dstip_${ipv46}.ipset="omr_dst_bypass_${intf}_${ipv46}"
				set firewall.omr_dst_bypass_${intf}_dstip_${ipv46}.target='MARK'
				set firewall.omr_dst_bypass_${intf}_dstip_${ipv46}.src='lan'
				set firewall.omr_dst_bypass_${intf}_dstip_${ipv46}.dest='*'
				set firewall.omr_dst_bypass_${intf}_dstip_${ipv46}.family="ipv${ipv46}"
				set firewall.omr_dst_bypass_${intf}_dstip_${ipv46}.enabled='0'
				set firewall.omr_dst_bypass_${intf}_dstip_${ipv46}.set_mark="0x${ipv46}539${count}"
				set firewall.omr_dst_bypass_${intf}_dstip_${ipv46}_accept=rule
				set firewall.omr_dst_bypass_${intf}_dstip_${ipv46}_accept.name="omr_dst_bypass_${intf}_rule_accept"
				set firewall.omr_dst_bypass_${intf}_dstip_${ipv46}_accept.target='ACCEPT'
				set firewall.omr_dst_bypass_${intf}_dstip_${ipv46}_accept.dest='*'
				set firewall.omr_dst_bypass_${intf}_dstip_${ipv46}_accept.family="ipv${ipv46}"
				set firewall.omr_dst_bypass_${intf}_dstip_${ipv46}_accept.enabled='0'
				set firewall.omr_dst_bypass_${intf}_dstip_${ipv46}_accept.mark="0x${ipv46}539${count}"
				set firewall.omr_dst_bypass_${intf}_srcip_${ipv46}=rule
				set firewall.omr_dst_bypass_${intf}_srcip_${ipv46}.name="omr_dst_bypass_${intf}_srcip"
				set firewall.omr_dst_bypass_${intf}_srcip_${ipv46}.ipset="omr_dst_bypass_${intf}_${ipv46}"
				set firewall.omr_dst_bypass_${intf}_srcip_${ipv46}.src='lan'
				set firewall.omr_dst_bypass_${intf}_srcip_${ipv46}.dest='*'
				set firewall.omr_dst_bypass_${intf}_srcip_${ipv46}.family="ipv${ipv46}"
				set firewall.omr_dst_bypass_${intf}_srcip_${ipv46}.target='MARK'
				set firewall.omr_dst_bypass_${intf}_srcip_${ipv46}.enabled='0'
				set firewall.omr_dst_bypass_${intf}_srcip_${ipv46}.set_xmark="0x${ipv46}539${count}"
				set firewall.omr_dst_bypass_${intf}_mac_${ipv46}=rule
				set firewall.omr_dst_bypass_${intf}_mac_${ipv46}.name='omr_dst_bypass_${intf}_mac'
				set firewall.omr_dst_bypass_${intf}_mac_${ipv46}.src='lan'
				set firewall.omr_dst_bypass_${intf}_mac_${ipv46}.dest='*'
				set firewall.omr_dst_bypass_${intf}_mac_${ipv46}.target='MARK'
				set firewall.omr_dst_bypass_${intf}_mac_${ipv46}.enabled='0'
				set firewall.omr_dst_bypass_${intf}_mac_${ipv46}.set_xmark="0x${ipv46}539${count}"
				set firewall.omr_dst_bypass_${intf}_srcport_tcp_${ipv46}=rule
				set firewall.omr_dst_bypass_${intf}_srcport_tcp_${ipv46}.name="omr_dst_bypass_${intf}_srcport"
				set firewall.omr_dst_bypass_${intf}_srcport_tcp_${ipv46}.proto='tcp'
				set firewall.omr_dst_bypass_${intf}_srcport_tcp_${ipv46}.src='lan'
				set firewall.omr_dst_bypass_${intf}_srcport_tcp_${ipv46}.dest='*'
				set firewall.omr_dst_bypass_${intf}_srcport_tcp_${ipv46}.target='MARK'
				set firewall.omr_dst_bypass_${intf}_srcport_tcp_${ipv46}.enabled='0'
				set firewall.omr_dst_bypass_${intf}_srcport_tcp_${ipv46}.set_xmark="0x${ipv46}539${count}"
				set firewall.omr_dst_bypass_${intf}_srcport_udp_${ipv46}=rule
				set firewall.omr_dst_bypass_${intf}_srcport_udp_${ipv46}.name="omr_dst_bypass_${intf}_srcport"
				set firewall.omr_dst_bypass_${intf}_srcport_udp_${ipv46}.proto='udp'
				set firewall.omr_dst_bypass_${intf}_srcport_udp_${ipv46}.src='lan'
				set firewall.omr_dst_bypass_${intf}_srcport_udp_${ipv46}.dest='*'
				set firewall.omr_dst_bypass_${intf}_srcport_udp_${ipv46}.target='MARK'
				set firewall.omr_dst_bypass_${intf}_srcport_udp_${ipv46}.enabled='0'
				set firewall.omr_dst_bypass_${intf}_srcport_udp_${ipv46}.set_xmark="0x${ipv46}539${count}"
				set firewall.omr_dst_bypass_${intf}_dstport_tcp_${ipv46}=rule
				set firewall.omr_dst_bypass_${intf}_dstport_tcp_${ipv46}.name="omr_dst_bypass_${intf}_dstport"
				set firewall.omr_dst_bypass_${intf}_dstport_tcp_${ipv46}.src='lan'
				set firewall.omr_dst_bypass_${intf}_dstport_tcp_${ipv46}.dest='*'
				set firewall.omr_dst_bypass_${intf}_dstport_tcp_${ipv46}.target='MARK'
				set firewall.omr_dst_bypass_${intf}_dstport_tcp_${ipv46}.enabled='0'
				set firewall.omr_dst_bypass_${intf}_dstport_tcp_${ipv46}.set_xmark="0x${ipv46}539${count}"
				set firewall.omr_dst_bypass_${intf}_dstport_udp_${ipv46}=rule
				set firewall.omr_dst_bypass_${intf}_dstport_udp_${ipv46}.name="omr_dst_bypass_${intf}_dstport"
				set firewall.omr_dst_bypass_${intf}_dstport_udp_${ipv46}.src='lan'
				set firewall.omr_dst_bypass_${intf}_dstport_udp_${ipv46}.dest='*'
				set firewall.omr_dst_bypass_${intf}_dstport_udp_${ipv46}.target='MARK'
				set firewall.omr_dst_bypass_${intf}_dstport_udp_${ipv46}.enabled='0'
				set firewall.omr_dst_bypass_${intf}_dstport_udp_${ipv46}.set_xmark="0x${ipv46}539${count}"
			EOF
		done
		if [ "$intf" = "all" ]; then
			uci -q batch <<-EOF >/dev/null
				delete network.${intf}_fw_rule=rule
				set network.${intf}_fw_rule=rule
				set network.${intf}_fw_rule.priority=1
				set network.${intf}_fw_rule.mark=0x4539
				set network.${intf}_fw_rule.lookup=991337
				delete network.${intf}_fw_rule6=rule6
				set network.${intf}_fw_rule6=rule6
				set network.${intf}_fw_rule6.priority=1
				set network.${intf}_fw_rule6.mark=0x6539
				set network.${intf}_fw_rule6.lookup=6991337
			EOF
		else
			uci -q batch <<-EOF >/dev/null
				delete network.${intf}_fw_rule=rule
				set network.${intf}_fw_rule=rule
				set network.${intf}_fw_rule.priority=1
				set network.${intf}_fw_rule.mark=0x4539${count}
				set network.${intf}_fw_rule.lookup=${count}
				delete network.${intf}_fw_rule6=rule6
				set network.${intf}_fw_rule6=rule6
				set network.${intf}_fw_rule6.priority=1
				set network.${intf}_fw_rule6.mark=0x6539${count}
				set network.${intf}_fw_rule6.lookup=${count}
			EOF
		fi
		uci batch <<-EOF
			set dhcp.omr_dst_bypass_$intf=ipset
			add_list dhcp.omr_dst_bypass_$intf.name="omr_dst_bypass_${intf}_4"
			add_list dhcp.omr_dst_bypass_$intf.name="omr_dst_bypass_${intf}_6"
		EOF

	if [ "$(uci -q get openmptcprouter.settings.proxy)" = "shadowsocks" ]; then
		config_load shadowsocks-libev
		config_foreach _intf_rule_ss_rules ss_rules
	elif [ "$(uci -q get openmptcprouter.settings.proxy)" = "shadowsocks-rust" ]; then
		config_load shadowsocks-rust
		config_foreach _intf_rule_ss_rules ss_rules
	elif [ "$(uci -q get openmptcprouter.settings.proxy)" = "v2ray" ]; then
		_intf_rule_v2ray_rules
	elif [ "$(uci -q get openmptcprouter.settings.proxy)" = "xray" ]; then
		_intf_rule_xray_rules
	fi

	if [ "$intf" != "all" ]; then
		uci -q set omr-bypass.$intf=interface
		uci -q set omr-bypass.$intf.id=$count
	fi
}

_bypass_ip_set() {
	local ip
	local interface
	local enabled
	config_get ip $1 ip
	config_get interface $1 interface
	config_get enabled $1 enabled
	[ "$enabled" = "0" ] && return
	_bypass_ip $ip $interface
}

_bypass_asn() {
	local asn
	local interface
	local enabled
	config_get asn $1 asn
	config_get interface $1 interface
	config_get enabled $1 enabled
	[ "$enabled" = "0" ] && return
	local asnips
	asnips=`curl --max-time 4 -s -k https://stat.ripe.net/data/announced-prefixes/data.json?resource=${asn} | jsonfilter -q -e '@.data.prefixes.*.prefix'`
	for ip in $asnips; do
		_bypass_ip $ip $interface
	done
}

bypass_asn() {
	config_load omr-bypass
	config_foreach _bypass_asn asns
}

_bypass_omr_server() {
	local ip
	config_get ip $1 ip
	_bypass_ip $ip
}


_ss_rules_config() {
	cat >> /etc/firewall.omr-bypass <<-EOF
		[ -z "\$(nft list ruleset | grep ss_rules)" ] && exit 0
		#nft insert rule inet fw4 ss_rules_dst_tcp ip daddr @omr_dst_bypass_all_4 meta mark set 0x00004539 accept
		#nft insert rule inet fw4 ss_rules_local_out ip daddr @omr_dst_bypass_all_4 meta mark set 0x00004539 accept
		#nft add chain inet fw4 bypass_prerouting '{ type nat hook prerouting priority filter - 5; policy accept; }'
		#nft add chain inet fw4 bypass_local '{ type nat hook output priority filter - 5; policy accept; }'
	EOF
	#if [ "$disableipv6" = "0" ]; then
	#	cat >> /etc/firewall.omr-bypass <<-EOF
	#		nft insert rule inet fw4 ss_rules_dst_tcp ip6 daddr @omr_dst_bypass_all_6 accept
	#		nft insert rule inet fw4 ss_rules_local_out ip6 daddr @omr_dst_bypass_all_6 accept
	#	EOF
	#fi
}

_v2ray_rules_config() {
	cat >> /etc/firewall.omr-bypass <<-EOF
		[ -z "\$(nft list ruleset | grep v2r_rules)" ] && exit 0
		#nft insert rule inet fw4 v2r_rules_dst_tcp ip daddr @omr_dst_bypass_all_4 accept
		#nft insert rule inet fw4 v2r_rules_local_out ip daddr @omr_dst_bypass_all_4 accept
	EOF
	#if [ "$disableipv6" = "0" ]; then
	#	cat >> /etc/firewall.omr-bypass <<-EOF
	#		nft insert rule inet fw4 v2r_rules_dst_tcp ip6 daddr @omr_dst_bypass_all_6 accept
	#		nft insert rule inet fw4 v2r_rules_local_out ip6 daddr @omr_dst_bypass_all_6 accept
	#	EOF
	#fi
}

_xray_rules_config() {
	cat >> /etc/firewall.omr-bypass <<-EOF
		[ -z "\$(nft list ruleset | grep xr_rules)" ] && exit 0
		#nft insert rule inet fw4 xr_rules_dst_tcp ip daddr @omr_dst_bypass_all_4 accept
		#nft insert rule inet fw4 xr_rules_local_out ip daddr @omr_dst_bypass_all_4 accept
	EOF
	#if [ "$disableipv6" = "0" ]; then
	#	cat >> /etc/firewall.omr-bypass <<-EOF
	#		nft insert rule inet fw4 xr_rules_dst_tcp ip6 daddr @omr_dst_bypass_all_6 accept
	#		nft insert rule inet fw4 xr_rules_local_out ip6 daddr @omr_dst_bypass_all_6 accept
	#	EOF
	#fi
}

_delete_dhcp_ipset() {
	[ -n "$(echo $1 | grep omr_dst_bypass)" ] && {
		uci -q delete dhcp.$1
	}
}

_delete_firewall_rules() {
	([ -n "$(echo $1 | grep omr_dst_bypass)" ] || [ -n "$(echo $1 | grep omr6_dst_bypass)" ]) && {
		uci -q delete firewall.$1
	}
}

boot() {
	BOOT=1
	start "$@"
}

start_service() {
	#local count
	logger -t "omr-bypass" "Starting OMR-ByPass..."

	config_load dhcp
	config_foreach _delete_dhcp_ipset ipset
	#uci -q commit dhcp
	config_load firewall
	config_foreach _delete_firewall_rules rule
	config_foreach _delete_firewall_rules ipset
	#uci -q commit firewall


	add_domains="false"
	[ -d /proc/net/xt_ndpi ] && {
		config_load omr-bypass
		config_foreach _add_proto proto
	}
	disableipv6="$(uci -q get openmptcprouter.settings.disable_ipv6)"
	#noipv6="$(uci -q get omr-bypass.global.noipv6)"
	rm -f /etc/firewall.omr-bypass
	cat > /etc/firewall.omr-bypass <<-EOF
	#!/bin/sh
	#nft insert rule inet fw4 ss_rules_dst_tcp ip daddr @omr_dst_bypass_all accept
	#nft insert rule inet fw4 ss_rules_local_out ip daddr @omr_dst_bypass_all accept
	EOF
	#config_load shadowsocks-libev
	#config_foreach _ss_rules_config ss_rules
	([ "$(uci -q get shadowsocks-libev.sss0.disabled)" != "1" ] || [ "$(uci -q get shadowsocks-rust.sss0.disabled)" != "1" ]) && _ss_rules_config
	#config_load shadowsocks-rust
	#config_foreach _ss_rules_config ss_rules
	[ "$(uci -q get v2ray.main.enabled)" = "1" ] && _v2ray_rules_config
	[ "$(uci -q get xray.main.enabled)" = "1" ] && _xray_rules_config


	uci batch <<-EOF
		set firewall.omr_bypass=include
		set firewall.omr_bypass.enabled='1'
		set firewall.omr_bypass.type='script'
		set firewall.omr_bypass.path='/etc/firewall.omr-bypass'
		set firewall.omr_bypass.fw4_compatible='1'
	EOF
	#echo "intf_rule"
	config_load network
	config_foreach _intf_rule interface
	_intf_rule all
	_intf_rule srv_vpn1
	local ndpi_rules=""
	#echo "bypass server"
	if [ "$(uci -q get openmptcprouter.settings.bypass_servers)" = "1" ]; then
		config_load openmptcprouter
		config_foreach _bypass_omr_server server
	fi
	config_load omr-bypass
	#echo "bypass ip"
	config_foreach _bypass_ip_set ips
	#echo "bypass mac"
	config_foreach _bypass_mac macs
	#echo "bypass lan ip"
	config_foreach _bypass_lan_ip lan_ip
	#echo "bypass dest port"
	config_foreach _bypass_dest_port dest_port
	#echo "bypass src port"
	config_foreach _bypass_src_port src_port
	#echo "bypass asn"
	config_foreach _bypass_asn asns
	#echo "bypass domains"
	config_foreach _bypass_domains domains

#	ip rule add prio 1 fwmark 0x4539 lookup 991337 > /dev/null 2>&1
#	ip -6 rule add prio 1 fwmark 0x6539 lookup 6991337 > /dev/null 2>&1

	# NDPI Netfilter is not available for nftables
	$IPTABLESSAVE --counters 2>/dev/null | grep -v omr-bypass-dpi | $IPTABLESRESTORE -w --counters 2>/dev/null
	$IPTABLESRESTORE -w --wait=60  --noflush <<-EOF
	*mangle
	:omr-bypass-dpi -
	-A INPUT -j omr-bypass-dpi
	-A FORWARD -j omr-bypass-dpi
	COMMIT
	EOF
	if [ "$disableipv6" = "0" ]; then
		$IP6TABLESSAVE --counters | grep -v omr-bypass6-dpi | $IP6TABLESRESTORE -w --counters 2>/dev/null
		$IP6TABLESRESTORE -w --wait=60  --noflush <<-EOF
		*mangle
		:omr-bypass6-dpi -
		-A INPUT -j omr-bypass6-dpi
		-A FORWARD -j omr-bypass6-dpi
		COMMIT
		EOF
	fi
	config_load omr-bypass
	[ -d /proc/net/xt_ndpi/proto ] && config_foreach _bypass_proto dpis
	config_foreach _bypass_proto_without_ndpi dpis
	[ -n "$(uci change network)" ] && {
		uci -q commit network
		/etc/init.d/network reload
	}
	uci -q commit omr-bypass
	uci -q commit dhcp
	uci -q commit firewall
	fw4 -q restart

	[ -z "$RELOAD" ] && [ "$add_domains" = "true" ] && {
		logger -t "omr-bypass" "Restart dnsmasq..."
		/etc/init.d/dnsmasq restart
	}
	[ -n "$RELOAD" ] && [ "$add_domains" = "true" ] && {
		logger -t "omr-bypass" "Reload dnsmasq..."
		/etc/init.d/dnsmasq reload
	}
	# Create a protocol list for UI from a sqlite DB when NDPI is not available
	sqlite3 /usr/share/omr-bypass/omr-bypass.db "select distinct(proto) from (select proto from hostproto union all select proto from ipproto) a order by proto;" ".exit" > /usr/share/omr-bypass/omr-bypass-proto.lst
	config_load omr-bypass
	config_foreach _add_proto_without_ndpi proto
	sort < /usr/share/omr-bypass/omr-bypass-proto.lst > /usr/share/omr-bypass/omr-bypass-proto.lst.new
	mv /usr/share/omr-bypass/omr-bypass-proto.lst.new /usr/share/omr-bypass/omr-bypass-proto.lst
	logger -t "omr-bypass" "OMR-ByPass is running"
}

stop_service() {
	# Rules for ndpi
	$IPTABLESSAVE --counters 2>/dev/null | grep -v omr-bypass | $IPTABLESRESTORE -w --counters 2>/dev/null
	$IP6TABLESSAVE --counters 2>/dev/null | grep -v omr-bypass6 | $IP6TABLESRESTORE -w --counters 2>/dev/null
	# disable all rules
	uci -q set firewall.omr_bypass.enabled='0'
	config_load dhcp
	config_foreach _delete_dhcp_ipset ipset
	uci -q commit dhcp
	config_load firewall
	config_foreach _delete_firewall_rules rule
	config_foreach _delete_firewall_rules ipset
	uci -q commit firewall
	fw4 -q restart
	exit 0
}

service_triggers() {
	procd_add_reload_trigger omr-bypass network firewall
}

reload_service() {
	RELOAD=1
	stop
	start
}
restart_service() {
	RELOAD=1
	stop
	start
}

reload_rules() {
	#[ "$( ipset -n list | grep omr_ )" = "" ] && return 0
	RELOAD=1
	stop
	start
}