105 lines
3.7 KiB
Bash
105 lines
3.7 KiB
Bash
#!/bin/bash /usr/lib/turtle/turtle_module
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VERSION="1.2"
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DESCRIPTION="Clone Client's MAC address into WAN interface"
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AUTHOR="Shad"
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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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: ${DIALOG_ESC=255}
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function configure {
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dialog --title "clomac" --msgbox "\n\
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(\___/) \n\
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(='.'=) Nothing to configure here... yet.\n\
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(\")_(\")\ \n\
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" 9 72
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}
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function clonemac {
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if [ "$CLIENT_MAC" != "$ETH1MAC" ]; then
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echo "Cloning CLIENT_MAC: $CLIENT_MAC" >> /tmp/clomac.debug
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uci set clomac.eth1mac="$ETH1MAC"
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uci commit clomac
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ifconfig eth1 down
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macchanger -m "$CLIENT_MAC" eth1 # Hope there is no IDS that alerts about the MAC change.
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ifconfig eth1 up
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sleep 1
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ETH1_IP="`ifconfig eth1 | grep "inet addr"`"
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if [ "$ETH1_IP" == "" ]; then # Maybe we didn't get an IP because of MAC Filtering? Try again now!
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echo "Trying to get a new IP address via DHCP" >> /tmp/clomac.debug
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uci set network.wan.macaddr="$CLIENT_MAC" # Workaround to avoid udhcpc restoring the default MAC
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killall -9 udhcpc
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# udhcpc -p /var/run/udhcpc-eth1.pid -s /lib/netifd/dhcp.script -f -t 0 -i eth1 -C
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fi
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else
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echo "CLIENT_MAC and ETH1MAC are the same. Nothing to do." >> /tmp/clomac.debug
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fi
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}
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function start {
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if [ ! -e "/etc/config/clomac" ]; then
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touch /etc/config/clomac
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uci set clomac.version="1.2" # Workaround to know what to do on updates
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uci set clomac.trylast="1" # if 1 AND not find a dhcp client, it will clone the last seen client MAC (if there is one)
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uci set clomac.clientmac="$(macchanger -s eth1 | awk '{ print $3}')"
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uci set clomac.eth1mac="22:22:22:22:22:22"
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uci commit clomac
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fi
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if [ "`grep clomac /etc/dnsmasq.conf`" == "" ]; then
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echo "dhcp-script=/tmp/clomac_pivot" >> /etc/dnsmasq.conf
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fi
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if [ ! -e "/tmp/clomac_pivot" ]; then
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echo "#!/bin/bash" > /tmp/clomac_pivot
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echo "/etc/turtle/modules/clomac start" >> /tmp/clomac_pivot
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chmod 755 /tmp/clomac_pivot
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ETH1MAC="$(uci get network.wan.macaddr)"
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uci set clomac.eth1mac="$ETH1MAC"
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uci commit clomac
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if [ ! -e "/tmp/clomac.debug" ]; then
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echo "Launching at job in 1 min" >> /tmp/clomac.debug
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at -f /tmp/clomac_pivot now + 1 min 2> /dev/null
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fi
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fi
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date >> /tmp/clomac.debug
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CLIENT_MAC="`cat /tmp/dhcp.leases | tail -1 | awk '{ print $2; }'`"
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ETH1MAC="$(macchanger -s eth1 | awk '{ print $3; }')"
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if [ "$CLIENT_MAC" != "" ]; then
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echo "Got CLIENT_MAC from dhcp.leases" >> /tmp/clomac.debug
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uci set clomac.clientmac="$CLIENT_MAC"
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uci commit clomac
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clonemac
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elif [ "$(uci get clomac.trylast)" == "1" ]; then
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if [ "$(uci get clomac.clientmac)" != "" ]; then
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CLIENT_MAC="$(uci get clomac.clientmac)"
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echo "Don't have a dhcp.leases but will use last seen CLIENT_MAC: $CLIENT_MAC" >> /tmp/clomac.debug
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clonemac
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fi
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fi
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}
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function stop {
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if [ "`grep clomac /etc/dnsmasq.conf`" != "" ]; then
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cp /etc/dnsmasq.conf /etc/dnsmasq.conf.back
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cat /etc/dnsmasq.conf.back | grep -v clomac > /etc/dnsmasq.conf
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fi
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rm -f /tmp/clomac_pivot
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ifconfig eth1 down
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macchanger -m $(uci get clomac.eth1mac) eth1
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ifconfig eth1 up
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}
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function status {
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if [ "`grep clomac /etc/dnsmasq.conf`" == "" ]; then
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echo 0
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elif [ -e /tmp/clomac_pivot ]; then
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echo 1
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fi
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}
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