NFQWS_CLOUDFLARE_OPTS="${NFQWS_CLOUDFLARE_OPTS:---dpi-desync=fake --dpi-desync-repeats=3 --dpi-desync-ttl=6}"
NFQWS_CLOUDFLARE_PORTS=${NFQWS_CLOUDFLARE_PORTS:-443,80}
NFQWS_CLOUDFLARE_SUBNETS_IPV4="103.21.244.0/22 103.22.200.0/22 103.31.4.0/22 104.16.0.0/13 104.24.0.0/14 108.162.192.0/18 131.0.72.0/22 141.101.64.0/18 162.158.0.0/15 172.64.0.0/13 173.245.48.0/20 188.114.96.0/20 190.93.240.0/20 197.234.240.0/22 198.41.128.0/17"
NFQWS_CLOUDFLARE_SUBNETS_IPV6="2400:cb00::/32 2405:8100::/32 2405:b500::/32 2606:4700::/32 2803:f800::/32 2a06:98c0::/29 2c0f:f248::/32"

alloc_dnum DNUM_NFQWS_CLOUDFLARE
alloc_qnum QNUM_NFQWS_CLOUDFLARE
NFQWS_CLOUDFLARE_SET_NAME_IPV4=cloudflare_nfqws_ipv4
NFQWS_CLOUDFLARE_SET_NAME_IPV6=cloudflare_nfqws_ipv6

zapret_custom_daemons()
{
	local opt="--qnum=$QNUM_NFQWS_CLOUDFLARE $NFQWS_CLOUDFLARE_OPTS"
	do_nfqws $1 $DNUM_NFQWS_CLOUDFLARE "$opt"
}

zapret_custom_firewall()
{
	local first_packets_only="$ipt_connbytes 1:3"
	local dest_set_ipv4="-m set --match-set $NFQWS_CLOUDFLARE_SET_NAME_IPV4 dst"
	local dest_set_ipv6="-m set --match-set $NFQWS_CLOUDFLARE_SET_NAME_IPV6 dst"
	local subnet

	[ "$1" = 1 ] && {
		ipset create $NFQWS_CLOUDFLARE_SET_NAME_IPV4 hash:net hashsize 8192 maxelem 4096 2>/dev/null
		ipset create $NFQWS_CLOUDFLARE_SET_NAME_IPV6 hash:net family inet6 hashsize 8192 maxelem 4096 2>/dev/null
		ipset flush $NFQWS_CLOUDFLARE_SET_NAME_IPV4
		ipset flush $NFQWS_CLOUDFLARE_SET_NAME_IPV6
		for subnet in $NFQWS_CLOUDFLARE_SUBNETS_IPV4; do
			echo add $NFQWS_CLOUDFLARE_SET_NAME_IPV4 $subnet
		done | ipset -! restore
		for subnet in $NFQWS_CLOUDFLARE_SUBNETS_IPV6; do
			echo add $NFQWS_CLOUDFLARE_SET_NAME_IPV6 $subnet
		done | ipset -! restore
	}

	local f="-p tcp -m multiport --dports $NFQWS_CLOUDFLARE_PORTS"
	fw_nfqws_post $1 "$f $first_packets_only $dest_set_ipv4" "" $QNUM_NFQWS_CLOUDFLARE
	fw_nfqws_post $1 "$f $first_packets_only $dest_set_ipv6" "" $QNUM_NFQWS_CLOUDFLARE

	[ "$1" = 1 ] || {
		ipset destroy $NFQWS_CLOUDFLARE_SET_NAME_IPV4 2>/dev/null
		ipset destroy $NFQWS_CLOUDFLARE_SET_NAME_IPV6 2>/dev/null
	}
}

zapret_custom_firewall_nft()
{
	local first_packets_only="$nft_connbytes 1-3"
	local dest_set_ipv4="ip daddr @$NFQWS_CLOUDFLARE_SET_NAME_IPV4"
	local dest_set_ipv6="ip6 daddr @$NFQWS_CLOUDFLARE_SET_NAME_IPV6"
	local subnets subnets_ipv6

	make_comma_list subnets $NFQWS_CLOUDFLARE_SUBNETS_IPV4
	make_comma_list subnets_ipv6 $NFQWS_CLOUDFLARE_SUBNETS_IPV6
	nft_create_set $NFQWS_CLOUDFLARE_SET_NAME_IPV4 "type ipv4_addr; size 4096; auto-merge; flags interval;"
	nft_create_set $NFQWS_CLOUDFLARE_SET_NAME_IPV6 "type ipv6_addr; size 4096; auto-merge; flags interval;"
	nft_flush_set $NFQWS_CLOUDFLARE_SET_NAME_IPV4
	nft_flush_set $NFQWS_CLOUDFLARE_SET_NAME_IPV6
	nft_add_set_element $NFQWS_CLOUDFLARE_SET_NAME_IPV4 "$subnets"
	nft_add_set_element $NFQWS_CLOUDFLARE_SET_NAME_IPV6 "$subnets_ipv6"

	local f="tcp dport {$NFQWS_CLOUDFLARE_PORTS}"
	nft_fw_nfqws_post "$f $first_packets_only $dest_set_ipv4" "" $QNUM_NFQWS_CLOUDFLARE
	nft_fw_nfqws_post "$f $first_packets_only $dest_set_ipv6" "" $QNUM_NFQWS_CLOUDFLARE
}

zapret_custom_firewall_nft_flush()
{
	nft_del_set $NFQWS_CLOUDFLARE_SET_NAME_IPV4 2>/dev/null
	nft_del_set $NFQWS_CLOUDFLARE_SET_NAME_IPV6 2>/dev/null
}