zapret/init.d/openwrt/custom.d.examples/50-quic4all

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# this custom script runs desync to all QUIC initial packets, without ipset/hostlist filtering
# need to add to config : NFQWS_OPT_DESYNC_QUIC="--dpi-desync=fake"
# NOTE : do not use TTL fooling. chromium QUIC engine breaks sessions if TTL expired in transit received
alloc_dnum DNUM_QUIC4ALL
alloc_qnum QNUM_QUIC4ALL
zapret_custom_daemons()
{
# $1 - 1 - run, 0 - stop
local opt="--qnum=$QNUM_QUIC4ALL $NFQWS_OPT_BASE $NFQWS_OPT_DESYNC_QUIC"
run_daemon $DNUM_QUIC4ALL $NFQWS "$opt"
}
zapret_custom_firewall()
{
# $1 - 1 - run, 0 - stop
local f
local first_packets_only="$ipt_connbytes 1:3"
local desync="-m mark ! --mark $DESYNC_MARK/$DESYNC_MARK"
f="-p udp -m multiport --dports $QUIC_PORTS_IPT"
fw_nfqws_post $1 "$f $desync $first_packets_only" "$f $desync $first_packets_only" $QNUM_QUIC4ALL
}
zapret_custom_firewall_nft()
{
# stop logic is not required
local f
local first_packets_only="$nft_connbytes 1-3"
local desync="mark and $DESYNC_MARK == 0"
f="udp dport {$QUIC_PORTS}"
nft_fw_nfqws_post "$f $desync $first_packets_only" "$f $desync $first_packets_only" $QNUM_QUIC4ALL
}