50-quic4all

Author: bol-van

docs/changes.txt

@@ -559,3 +559,5 @@ blockcheck: curl test simulation : SIMULATE=1
 v72.1
 
 nfqws: --ip-id=seq|seqgroup|rnd|zero
+blockcheck: MIN_AUTOTTL_DELTA,MAX_AUTOTTL_DELTA
+init.d: 50-quic4all custom

init.d/custom.d.examples.linux/50-quic4all

@@ -0,0 +1,31 @@
+# this custom script runs desync to all IETF QUIC initials
+# NOTE: @ih requires nft 1.0.1+ and updated kernel version. it's confirmed to work on 5.15 (openwrt 23) and not work on 5.10 (openwrt 22)
+
+# can override in config :
+NFQWS_OPT_DESYNC_QUIC="${NFQWS_OPT_DESYNC_QUIC:---dpi-desync=fake --dpi-desync-repeats=2}"
+
+alloc_dnum DNUM_QUIC4ALL
+alloc_qnum QNUM_QUIC4ALL
+
+zapret_custom_daemons()
+{
+	# $1 - 1 - add, 0 - stop
+
+	local opt="--qnum=$QNUM_QUIC4ALL $NFQWS_OPT_DESYNC_QUIC"
+	do_nfqws $1 $DNUM_QUIC4ALL "$opt"
+}
+# size = 156 (8 udp header + 148 payload) && payload starts with 0x01000000
+zapret_custom_firewall()
+{
+        # $1 - 1 - run, 0 - stop
+
+	local f='-p udp -m u32 --u32'
+	fw_nfqws_post $1 "$f 0>>22&0x3C@4>>16=264:65535&&0>>22&0x3C@8>>28=0xC&&0>>22&0x3C@9=0x00000001" "$f 44>>16=264:65535&&48>>28=0xC&&49=0x00000001" $QNUM_QUIC4ALL
+}
+zapret_custom_firewall_nft()
+{
+        # stop logic is not required
+
+	local f="udp length >= 264 @ih,0,4 0xC @ih,8,32 0x00000001"
+	nft_fw_nfqws_post "$f" "$f" $QNUM_QUIC4ALL
+}