258 lines
6.7 KiB
Bash
Executable File
258 lines
6.7 KiB
Bash
Executable File
#/*
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# * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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# * contributor license agreements. See the NOTICE file distributed with
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# * this work for additional information regarding copyright ownership.
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# * The OpenAirInterface Software Alliance licenses this file to You under
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# * the OAI Public License, Version 1.1 (the "License"); you may not use this file
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# * except in compliance with the License.
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# * You may obtain a copy of the License at
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# *
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# * http://www.openairinterface.org/?page_id=698
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# *
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# * Unless required by applicable law or agreed to in writing, software
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# * distributed under the License is distributed on an "AS IS" BASIS,
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# * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# * See the License for the specific language governing permissions and
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# * limitations under the License.
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# *-------------------------------------------------------------------------------
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# * For more information about the OpenAirInterface (OAI) Software Alliance:
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# * contact@openairinterface.org
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# */
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################################################################################
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# file interfaces.bash
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# brief
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# author Lionel Gauthier
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# company Eurecom
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# email: lionel.gauthier@eurecom.fr
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#
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cidr2mask() {
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local i mask=""
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local full_octets=$(($1/8))
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local partial_octet=$(($1%8))
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for ((i=0;i<4;i+=1)); do
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if [ $i -lt $full_octets ]; then
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mask+=255
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elif [ $i -eq $full_octets ]; then
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mask+=$((256 - 2**(8-$partial_octet)))
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else
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mask+=0
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fi
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test $i -lt 3 && mask+=.
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done
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echo $mask
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}
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# example: netcalc 192.168.12.100 255.255.255.0
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netcalc(){
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local IFS='.' ip i
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local -a oct msk
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read -ra oct <<<"$1"
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read -ra msk <<<"$2"
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for i in ${!oct[@]}; do
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ip+=( "$(( oct[i] & msk[i] ))" )
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done
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echo "${ip[*]}"
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}
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# example: s
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bcastcalc(){
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local IFS='.' ip i
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local -a oct msk
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read -ra oct <<<"$1"
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read -ra msk <<<"$2"
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for i in ${!oct[@]}; do
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ip+=( "$(( oct[i] + ( 255 - ( oct[i] | msk[i] ) ) ))" )
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done
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echo "${ip[*]}"
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}
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is_real_interface() {
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my_bool=1
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for var in "$@"
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do
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if [ "a$var" == "a" ]; then
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return 0
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fi
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if [ "a$var" == "anone" ]; then
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return 0
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fi
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IF=`cat /etc/udev/rules.d/70-persistent-net.rules | grep $var | sed 's/^.*NAME=//' | tr -d '"'`
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if [ "$IF" == "$var" ]; then
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if [ "a${var:0:3}" != "aeth" ]; then
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if [ "a${var:0:4}" != "awlan" ]; then
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if [ "a${var:0:4}" != "awifi" ]; then
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my_bool=0;
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fi
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fi
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fi
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fi
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done
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return $my_bool
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}
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is_vlan_interface() {
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my_bool=1
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for var in "$@"
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do
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if [ "a$var" == "a" ]; then
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return 0
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fi
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if [[ $var == *.* ]]
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then
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interface_name=`echo $var | cut -f1 -d '.'`
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vlan=`echo $var | cut -f2 -d '.'`
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IF=`cat /etc/udev/rules.d/70-persistent-net.rules | grep $interface_name | sed 's/^.*NAME=//' | tr -d '"'`
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if [ "$IF" == "$interface_name" ]; then
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if [ "a${interface_name:0:3}" != "aeth" ]; then
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if [ "a${interface_name:0:4}" != "awlan" ]; then
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if [ "a${interface_name:0:4}" != "awifi" ]; then
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return 0;
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fi
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fi
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fi
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fi
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else
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return 0;
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fi
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done
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return $my_bool
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}
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is_tun_interface() {
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my_bool=1
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for var in "$@"
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do
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if [ "a$var" == "a" ]; then
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return 0
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fi
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if [[ "$IF" != *tun* ]]; then
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return 0;
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fi
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bus_info=`ethtool -i $var | grep bus-info | cut -d: -f2`
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bus_info=trim2 $bus_info
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if [[ "$bus_info" != *tun* ]]; then
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return 0;
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fi
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done
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return $my_bool
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}
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is_openvswitch_interface() {
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for var in "$@"
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do
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if [ "a$var" == "a" ]; then
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return 0
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fi
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if [ "a${var:0:3}" != "aeth" ]; then
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if [ "a${var:0:4}" != "awlan" ]; then
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if [ "a${var:0:4}" != "awifi" ]; then
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if [ "a${var:0:4}" != "anone" ]; then
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if [ "a${var:0:3}" != "atun" ]; then
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if [ "a${var:0:4}" != "avbox" ]; then
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return 1;
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fi
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fi
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fi
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fi
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fi
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fi
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done
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return 0;
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}
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delete_tun_interface() {
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is_tun_interface $1
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if [ $? -eq 1 ]; then
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ip link set $1 down > /dev/null 2>&1
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openvpn --rmtun --dev $1 > /dev/null 2>&1
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fi
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}
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delete_vlan_interface() {
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is_vlan_interface $1
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if [ $? -eq 1 ]; then
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bash_exec "ifconfig $1 down "
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bash_exec "vconfig rem $1 "
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fi
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}
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delete_openvswitch_interface() {
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is_openvswitch_interface $1
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if [ $? -eq 1 ]; then
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bash_exec "ifconfig $1 down "
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bash_exec "tunctl -d $1 "
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fi
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}
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create_tun_interface() {
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is_tun_interface $1
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if [ $? -eq 1 ]; then
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bash_exec "openvpn --mktun --dev $1"
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fi
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}
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create_vlan_interface() {
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is_vlan_interface $1
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if [ $? -eq 1 ]; then
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interface_name=`echo $1 | cut -f1 -d '.'`
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vlan=`echo $1 | cut -f2 -d '.'`
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bash_exec "vconfig add $interface_name $vlan"
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fi
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}
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create_openvswitch_interface() {
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is_openvswitch_interface $1
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if [ $? -eq 1 ]; then
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bash_exec "tunctl -t $1"
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fi
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}
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# arg1 = interface name
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# arg2 = ipv4 addr cidr
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# arg3 = netmask cidr
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set_interface_up() {
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interface=$1
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address=$2
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cidr_netmask=$3
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if [ "a${interface:0:4}" == "anone" ]; then
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return;
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fi
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bash_exec "ifconfig $interface up"
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sync
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netmask=`cidr2mask $cidr_netmask`
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broadcast=`bcastcalc $address $netmask`
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bash_exec "ip -4 addr add $address/$cidr_netmask broadcast $broadcast dev $interface"
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sync
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}
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# input is hostname, you should have checked it is reachable by
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# ping -c 1 $the_hostname > /dev/null || { echo_fatal "the_hostname does not respond to ping" >&2 ; }
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get_ip() {
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IP=$(python -c 'import socket; print socket.gethostbyname("'$1'")')
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echo "$IP"
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}
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get_mac_router() {
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echo_success "Resolving router.eur"
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ping -c 1 router.eur > /dev/null || { echo_fatal "router.eur does not respond to ping" >&2 ; }
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IP_ROUTER=$(get_ip router.eur)
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#IP_ROUTER=`python -c 'import socket; print socket.gethostbyname("router.eur")'`
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export MAC_ROUTER=`ip neigh show | grep $IP_ROUTER' ' | cut -d ' ' -f5 | tr -d ':'`
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echo_success "ROUTER IP ADDRESS= $IP_ROUTER"
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echo_success "ROUTER MAC ADDRESS= $MAC_ROUTER"
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}
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