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Network Callout
#!/bin/bash
# sudo apt install iw curl jq
ALIVE="$1"
check_public_ip() {
INTERFACE="$1"
PUBLIC_IP=$(curl -s https://httpbin.org/ip | jq -r .origin)
if ! [[ -z $PUBLIC_IP ]]; then
echo "[+] Found Public IP $PUBLIC_IP for $INTERFACE"
fi
}
check_interface() {
INTERFACE="$1"
IP_ADDRESS=$(ip -4 addr show $INTERFACE | grep "inet" | awk -F" " '{print $2}' | awk -F"/" '{print $1}')
echo "[+] Found IPv4: $IP_ADDRESS for interface $INTERFACE"
IPV6_ADDRESS=$(ip -6 addr show $INTERFACE | grep "inet" | awk -F" " '{print $2}' | awk -F"/" '{print $1}')
echo "[+] Found IPv6: $IPV6_ADDRESS for interface $INTERFACE"
if [[ -z $IP_ADDRESS ]] && [[ -z $IPV6_ADDRESS ]]; then
return 1
fi
if ! [[ -z $IP_ADDRESS ]]; then
LINE_COUNT=$(ping -4 -c 4 -I $INTERFACE $ALIVE 2>/dev/null | wc -l)
if [ $LINE_COUNT -gt 4 ]; then
echo "[+] Reached Internet on $INTERFACE with local IP address $IP_ADDRESS"
check_public_ip "$INTERFACE"
fi
fi
if ! [[ -z $IPV6_ADDRESS ]]; then
LINE_COUNT=$(ping -6 -c 4 -I $INTERFACE $ALIVE 2>/dev/null | wc -l)
if [ $LINE_COUNT -gt 4 ]; then
echo "Reached Internet on $INTERFACE with local IPv6 address $IPV6_ADDRESS"
check_public_ip "$INTERFACE"
fi
fi
return 0
}
if [[ -z "$ALIVE" ]]; then
ALIVE="www.google.com"
fi
ETHERNET_INTERFACES=$(ip link | awk -F: '$0 !~ "lo|vir|wl|^[^0-9]"{print $2;getline}')
for ETHERNET_INTERFACE in $ETHERNET_INTERFACES
do
echo "[*] Attempting Ethernet interface $ETHERNET_INTERFACE"
timeout -k 5s 5s dhclient -r $ETHERNET_INTERFACE 2> /dev/null
timeout -k 5s 5s dhclient $ETHERNET_INTERFACE 2> /dev/null
if [[ $? -eq 0 ]]; then
check_interface "$ETHERNET_INTERFACE"
if [[ $? -eq 0 ]]; then
echo "[*] Succcess for interface $ETHERNET_INTERFACE"
ip link set "$ETHERNET_INTERFACE" down
else
echo "[-] Failure for interface $ETHERNET_INTERFACE"
fi
fi
echo "[*] Ethernet Done"
done
WIFI_INTERFACES=$(iw dev | grep Interface | awk -F" " '{print $2}')
for WIFI_INTERFACE in $WIFI_INTERFACES
do
echo "[*] Attempting WiFi interface $WIFI_INTERFACE"
SSIDS=$(iw dev $WIFI_INTERFACE scan | grep "SSID:" | awk -F": " '{print $2}')
while read -r SSID;
do
if [[ -z "$SSID" ]]; then
continue
fi
NMCLI_OUTPUT=$(nmcli device wifi connect "$SSID") # 2>/dev/null
if [[ $? -ne 0 ]] || [[ "$NMCLI_OUTPUT" = *"Secrets were required"* ]]; then
continue
fi
timeout -k 5s 5s dhclient -r $WIFI_INTERFACE 2> /dev/null
timeout -k 5s 5s dhclient $WIFI_INTERFACE 2>/dev/null
if [[ $? -eq 0 ]]; then
check_interface "$WIFI_INTERFACE"
if [[ $? -eq 0 ]]; then
echo "[-] SSID "'"'"$SSID"'"'" Succeeded for interface $WIFI_INTERFACE"
nmcli con down "$SSID"
fi
fi
done <<< "$SSIDS"
done
echo "[*] WiFi done"
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