Update stun_bt_natmap.sh

Oniicyan · Jan 9, 2025 · 0d67a66 · 0d67a66
1 parent 37f59e3
commit 0d67a66
Showing 1 changed file with 20 additions and 23 deletions.
diff --git a/stun_bt_natmap.sh b/stun_bt_natmap.sh
@@ -9,7 +9,7 @@ LANPORT=$4
 L4PROTO=$5
 OWNADDR=$6
 
-OWNNAME=$(echo stun_bt_$APPADDR:$APPPORT$([ -n "$IFNAME" ] && echo @$IFNAME) | sed 's/[[:punct:]]/_/g')
+OWNNAME=$(echo stun_bt_$APPADDR:$APPPORT$([ $IFNAME ] && echo @$IFNAME) | sed 's/[[:punct:]]/_/g')
 RELEASE=$(grep ^ID= /etc/os-release | awk -F '=' '{print$2}' | tr -d \")
 STUNIFO=/tmp/$OWNNAME.info
 
@@ -26,26 +26,26 @@ case $RELEASE in
 				esac
 			fi
 		done
-		[ $(uci -q get natmap.$SECTTCP) ] || sed -i '/'tcp'/d' $STUNIFO
-		[ $(uci -q get natmap.$SECTUDP) ] || sed -i '/'udp'/d' $STUNIFO
+		[ $(uci -q get natmap.$SECTTCP) ] || sed '/tcp/d' -i $STUNIFO
+		[ $(uci -q get natmap.$SECTUDP) ] || sed '/udp/d' -i $STUNIFO
 		;;
 	*)
-		ps aux | grep $0 | grep "\-h" || sed -i '/'tcp'/d' $STUNIFO
-		ps aux | grep $0 | grep "\-u" || sed -i '/'udp'/d' $STUNIFO
+		ps aux | grep $0 | grep "\-h" || sed '/tcp/d' -i $STUNIFO
+		ps aux | grep $0 | grep "\-u" || sed '/udp/d' -i $STUNIFO
 		;;
 esac
 
 # 若公网端口未发生变化，则退出脚本
 OLDPORT=$(grep $L4PROTO $STUNIFO | awk -F ':| ' '{print$3}')
 if [ $WANPORT = "$OLDPORT" ]; then
-	logger -st stun_bt The external port $WANPORT/$L4PROTO$([ -n "$IFNAME" ] && echo @$IFNAME) has not changed.
+	logger -st stun_bt The external port $WANPORT/$L4PROTO$([ $IFNAME ] && echo @$IFNAME) has not changed.
 	nft list table ip STUN 2>&1 | grep $(printf '0x%x' $WANPORT) >/dev/null && exit 0
 fi
 
 # 更新保存穿透信息
-sed -i '/'$L4PROTO'/d' $STUNIFO 2>/dev/null
-echo $L4PROTO $WANADDR:$WANPORT '->' $([ -n "$LANPORT" ] && echo $OWNADDR:$LANPORT '->') $APPADDR:$APPPORT $(date +%s) >>$STUNIFO
-echo $(date) $L4PROTO $WANADDR:$WANPORT '->' $([ -n "$LANPORT" ] && echo $OWNADDR:$LANPORT '->') $APPADDR:$APPPORT >>/tmp/$OWNNAME.log
+sed '/'$L4PROTO'/d' -i $STUNIFO
+echo $L4PROTO $WANADDR:$WANPORT '->' $([ $LANPORT ] && echo $OWNADDR:$LANPORT '->') $APPADDR:$APPPORT $(date +%s) >>$STUNIFO
+echo $(date) $L4PROTO $WANADDR:$WANPORT '->' $([ $LANPORT ] && echo $OWNADDR:$LANPORT '->') $APPADDR:$APPPORT >>/tmp/$OWNNAME.log
 
 # 防止脚本同时操作 nftables 导致冲突
 [ $L4PROTO = udp ] && sleep 1 && \
@@ -57,20 +57,17 @@ nft add chain ip STUN BTTR { type filter hook postrouting priority filter \; }
 nft flush chain ip STUN BTTR
 WANTCP=$(grep tcp $STUNIFO | awk -F ':| ' '{print$3}')
 WANUDP=$(grep udp $STUNIFO | awk -F ':| ' '{print$3}')
-if [ -n "$IFNAME" ]; then
-	IIFNAME="iifname $IFNAME"
-	OIFNAME="oifname $IFNAME"
-fi
+[ $IFNAME ] && OIFNAME='oifname '$IFNAME''
 
 # HTTP Tracker
 STRAPP=0x706f72743d$(printf $APPPORT | xxd -p)
 STRTCP=0x3d$(printf 30$(printf "$WANTCP" | xxd -p) | tail -c 10)
 STRUDP=0x3d$(printf 30$(printf "$WANUDP" | xxd -p) | tail -c 10)
-if [ -n "$WANTCP" ] && [ -n "$WANUDP" ]; then
-	SETSTR="numgen inc mod 2 map { 0 : $STRTCP, 1 : $STRUDP }"
-elif [ -n "$WANTCP" ]; then
+if [ $WANTCP ] && [ $WANUDP ]; then
+	SETSTR='numgen inc mod 2 map { 0 : '$STRTCP', 1 : '$STRUDP' }'
+elif [ $WANTCP ]; then
 	SETSTR=$STRTCP
-elif [ -n "$WANUDP" ]; then
+elif [ $WANUDP ]; then
 	SETSTR=$STRUDP
 fi
 nft add set ip STUN BTTR_HTTP "{ type ipv4_addr . inet_service; flags dynamic; timeout 1h; }"
@@ -85,11 +82,11 @@ for OFFSET in $(seq 768 16 1056); do
 done
 
 # UDP Tracker
-if [ -n "$WANTCP" ] && [ -n "$WANUDP" ]; then
-	SETNUM="numgen inc mod 2 map { 0 : $WANTCP, 1 : $WANUDP }"
-elif [ -n "$WANTCP" ]; then
+if [ $WANTCP ] && [ $WANUDP ]; then
+	SETNUM='numgen inc mod 2 map { 0 : '$WANTCP', 1 : '$WANUDP' }'
+elif [ $WANTCP ]; then
 	SETNUM=$WANTCP
-elif [ -n "$WANUDP" ]; then
+elif [ $WANUDP ]; then
 	SETNUM=$WANUDP
 fi
 nft add set ip STUN BTTR_UDP "{ type ipv4_addr . inet_service; flags dynamic; timeout 1h; }"
@@ -100,7 +97,7 @@ nft delete rule ip STUN BTTR_UDP handle $(nft -a list chain ip STUN BTTR_UDP 2>/
 nft insert rule ip STUN BTTR_UDP $OIFNAME ip saddr $APPADDR @ih,64,32 1 @ih,768,16 $APPPORT @ih,768,16 set $SETNUM update @BTTR_UDP { ip daddr . udp dport } counter accept comment "$OWNNAME"
 
 # Tracker 流量需绕过软件加速
-# 仅检测 OpenWrt fw4 的软件加速，其他加速请自行解决
+# 仅检测 OpenWrt firewall4 的软件加速，其他加速请自行解决
 CTMARK=0x$(echo $APPADDR | awk -F . '{print$NF}')$APPPORT
 if uci show firewall 2>&1 | grep "flow_offloading='1'" >/dev/null; then
 	if ! nft list chain ip STUN BTTR_NOFT 2>&1 | grep $OWNNAME >/dev/null; then
@@ -132,4 +129,4 @@ else
 	nft list chain inet fw4 forward | grep _noft >/dev/null && fw4 -q reload >/dev/null
 fi
 
-logger -st stun_bt $WANADDR:$WANPORT/$L4PROTO$([ -n "$IFNAME" ] && echo @$IFNAME) to $APPADDR:$APPPORT
+logger -st stun_bt $WANADDR:$WANPORT/$L4PROTO$([ $IFNAME ] && echo @$IFNAME) to $APPADDR:$APPPORT