customshell/chmac-ifether at master · elppans/customshell · GitHub

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#!/bin/bash

# ifether = comando para mostrar somente a porta de rede, a primeira da lista. O parâmetro "-a" é para mostrar, mesmo se a porta não está ativa.
# chmac = Comando para mudar o MAC ADDRESS da porta escolhida aleatóriamente

# route -n
# $(echo "`$IFETHER`$(($RANDOM % 10))")
# $ $IFETHER
# enp2s0
# $IFETHER | tail -c 2
# 0
# expr 1 + `$IFETHER | tail -c 2`
# 1
# $ $IFETHER | sed "s/$($IFETHER | tail -c 2)//"
# enp2s
# echo `$IFETHER | sed "s/$($IFETHER | tail -c 2)//"``expr 1 + $($IFETHER | tail -c 2)`
# enp2s1

## Verificar Gateway:
#route -n|grep "UG"|grep -v "UGH"|cut -f 10 -d " "
#route -n | awk '$4 == "UG" {print $2}'
#route -n | grep 'UG[ \t]' | awk '{print $2}'
#/sbin/ip route | awk '/default/ { print $3 }'

#IPGW=$(ip route | awk '/default/ { print $3 }')
#echo $IPGW
#sudo route add default gw "$IPGW" `$IFETHER`

## Verificar IP:
#ifconfig `$IFETHER` | grep -i "inet end" | awk '{print $3}'
#ifconfig | sed -n 2P | awk '{print $3}'
#ifconfig | awk '/inet/ { print $3 }'
#ip addr show `ifconfig | head -1 | awk '{print $1}' | cut -d ":" -f "1"` | awk '/inet/ { print $2 }' | sed -n 1P | sed 's/\/.*//'

#IPADDR=$(ip addr show `ifconfig | head -1 | awk '{print $1}' | cut -d ":" -f "1"` | awk '/inet/ { print $2 }' | sed -n 1P | sed 's/\/.*//')
# Mesmo comando, mas usando o script "$IFETHER":
#IPADDR=$(ip addr show `$IFETHER` | awk '/inet/ { print $2 }' | sed -n 1P | sed 's/\/.*//')
#echo $IPADDR
#sudo ifconfig `$IFETHER` "$IPADDR" up

ADDRMAC="chmac"
IFETHER="ifether"
IFETHERA="ifether -a"
IPADDR=$(ip addr show `$IFETHER` | awk '/inet/ { print $2 }' | sed -n 1P | sed 's/\/.*//')
IPGW=$(ip route | awk '/default/ { print $3 }')


#echo $IPADDR
#echo $IPGW

case "$1" in
	-d|--dhcp)
echo "Antes:"
ifconfig `$IFETHER`
sudo ifconfig `$IFETHER` down
IFNAME="`$IFETHERA | sed "s/$($IFETHERA | tail -c 2)//"`"
IFNAME+="`expr "$($IFETHERA | tail -c 2)" + 1`"

sudo ip link set dev `$IFETHERA` name `echo "$IFNAME"`

sudo $ADDRMAC `$IFETHERA`
sudo ifconfig `$IFETHERA` up
sudo dhclient
echo "Depois:"
ifconfig `$IFETHER`
	;;
	-s|--static)
echo "Antes:"
ifconfig `$IFETHER`
sudo ifconfig `$IFETHER` down
IFNAME="`$IFETHERA | sed "s/$($IFETHERA | tail -c 2)//"`"
IFNAME+="`expr "$($IFETHERA | tail -c 2)" + 1`"

sudo ip link set dev `$IFETHERA` name `echo "$IFNAME"`

sudo $ADDRMAC `$IFETHERA`
sudo ifconfig `$IFETHER` "$IPADDR" up
sudo route add default gw "$IPGW" `$IFETHER`
echo "Depois:"
ifconfig `$IFETHER`
	;;
	-o|--only-mac)
echo "Antes:"
ifconfig `$IFETHER`
sudo chmac `$IFETHER`

echo "Depois:"
sudo ifconfig `$IFETHER` "$IPADDR" up
sudo route add default gw "$IPGW" `$IFETHER`
ifconfig `$IFETHER`
	;;
	*)
	echo "Falha ao executar o comando..."
	echo "Execute "$0" {-d|--dhcp|-s|--static|-o|--only-mac}"
	;;
esac