104 lines
3.6 KiB
Bash
Executable File
104 lines
3.6 KiB
Bash
Executable File
#!/bin/bash /usr/lib/turtle/turtle_module
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VERSION="1.0"
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DESCRIPTION="Proxies TCP over Ping (ICMP) traffic"
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CONF=/tmp/ptunnel.form
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: ${DIALOG_OK=0}
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: ${DIALOG_CANCEL=1}
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: ${DIALOG_HELP=2}
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: ${DIALOG_EXTRA=3}
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: ${DIALOG_ITEM_HELP=4}
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: ${DIALOG_ESC=255}
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function start {
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if [ -s /etc/config/ptunnel ]
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then
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ptunnel_host=$(uci get ptunnel.host)
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ptunnel_local_port=$(uci get ptunnel.lport)
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ptunnel_dst_host=$(uci get ptunnel.rhost)
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ptunnel_dst_port=$(uci get ptunnel.rport)
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echo ptunnel -p "$ptunnel_host" -lp "$ptunnel_local_port" -da "$ptunnel_dst_host" -dp "$ptunnel_dst_port" > /dev/null &
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ptunnel -p "$ptunnel_host" -lp "$ptunnel_local_port" -da "$ptunnel_dst_host" -dp "$ptunnel_dst_port" > /dev/null &
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echo -n "ptunnel started with pid: "; pidof ptunnel
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else
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touch /etc/config/ptunnel
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echo "ptunnel not configured"
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fi
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}
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function stop {
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killall ptunnel
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}
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function status {
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if pgrep ptunnel > /dev/null; then echo "1"; else echo "0"; fi
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}
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function configure {
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if [ -s /etc/config/ptunnel ]
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then
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ptunnel_host=$(uci get ptunnel.host)
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ptunnel_local_port=$(uci get ptunnel.lport)
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ptunnel_dst_host=$(uci get ptunnel.rhost)
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ptunnel_dst_port=$(uci get ptunnel.rport)
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else
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touch /etc/config/ptunnel
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fi
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dialog --ok-label "Submit" \
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--help-button \
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--title "PTunnel Configuration" \
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--form "\nPTunnel Server: Address of the server running the ptunnel proxy.\n\
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Local Port: Port on localhost from which traffic will be tunneled.\n\
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Dst Server: Destination host to which traffic will be proxied.\n\
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Dst Port: Destination port to which traffic will be proxied.\n\n" 16 75 4\
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"PTunnel Host:" 1 1 "$ptunnel_host" 1 15 40 0 \
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"Local Port:" 2 1 "$ptunnel_local_port" 2 15 40 0 \
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"Dst. Host:" 3 1 "$ptunnel_dst_host" 3 15 40 0 \
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"Dst. Port:" 4 1 "$ptunnel_dst_port" 4 15 40 0 \
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2>$CONF
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return=$?
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case $return in
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$DIALOG_OK)
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cat $CONF | {
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read -r ptunnel_host
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read -r ptunnel_local_port
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read -r ptunnel_dst_host
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read -r ptunnel_dst_port
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touch /etc/config/ptunnel
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uci set ptunnel.host="$ptunnel_host"
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uci set ptunnel.lport="$ptunnel_local_port"
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uci set ptunnel.rhost="$ptunnel_dst_host"
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uci set ptunnel.rport="$ptunnel_dst_port"
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uci commit ptunnel
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rm $CONF
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clear
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};;
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$DIALOG_CANCEL)
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rm $CONF
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clear
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exit;;
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$DIALOG_HELP)
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dialog --title "Help" \
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--msgbox "Ping Tunnel, or ptunnel, is an application that allows you to reliably tunnel TCP connections to a remote host using ICMP echo request and reply packets, commonly known as ping requests and replies.\
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A common use case is to provide a secure covert reverse shell via SSH.\n\n\
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Ping Tunnel configuration accepts the following:\n\n\
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* Ptunnel Host: Address of the server running the ptunnel proxy - often a VPS or other such machine online with a static IP or domain.\n\
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* Local Port: TCP listening port on localhost through which traffic will be proxied to the ptunnel host.\n\
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* Dst Server: Destination host of the remote proxy to which traffic will be forwarded.\n\
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* Dst Port: Destination port to remote proxy to which traffic will be forwarded.\n\n\
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Example: example.com, 8000, example.com, 22\n\n\
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This would configure ptunnel to connect to the ptunnel server running on domain.com and forward all traffic going to port 8000 on localhost to port 22 on example.com.\n\n\
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With this an autoSSH session to the SSH server running on example.com port 22 may be established through the Ping Tunnel via localhost port 8000.\
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" 20 60
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configure
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;;
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$DIALOG_ESC)
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clear;;
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esac
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}
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