Generate rule table for all non l interface having an ip address (for mptcp support)

gen-rule-table.sh

#!/usr/bin/bash

IP=$(ip addr | awk '
/^[0-9]+:/ { 
  sub(/:/,"",$2); iface=$2 } 
/^[[:space:]]*inet / { 
  split($2, a, "/")
  print iface" "a[1] 
}'|egrep -v ^lo)
IFS=$'\n'
count=0
for i in $IP
do
    IFS=' '
    INT=($i)
    count=$((count+1))
    LAST_IP=${INT[1]}
    LAST_IN=${INT[0]}
    LAST_GW=$(ip route|grep ${INT[0]} |grep default|cut -f3 -d' ')
    echo "ip rule add from ${INT[1]} table $count"
    echo "ip route add $(ip route|grep ${INT[0]}|grep src|cut -d' ' -f1) dev ${INT[0]} scope link table $count"
    echo "ip route add default via $LAST_GW dev ${INT[0]} table $count"
done
echo "ip route add default scope global nexthop via $LAST_GW dev $LAST_IN"

Another script to do the same (adding rule and route for table)

#!/bin/bash
#echo 101 adsl1 >> /etc/iproute2/rt_tables
#echo 102 adsl2 >> /etc/iproute2/rt_tables
createRule(){
    if [ $# -ne 2 ]; then
        echo "Missing parameters"
        exit
    fi
    DEV=$1
    TABLE=$2
    NET=$(ip route|grep $DEV|grep src|egrep -o [0-9]+\.[0-9]+\.[0-9]+\.[0-9]+\/[0-9]+)
    ROUTE=$(ip route |grep default|grep $DEV|egrep -o [0-9]+\.[0-9]+\.[0-9]+\.[0-9]+)

    ip rule add from $NET table $TABLE
    ip route add $NET dev $DEV scope link table $TABLE
    ip route add default via $ROUTE dev $DEV table $TABLE
}

getAllDefault(){
    count=1
    for i in $(ip route|grep default|egrep -o "dev [a-Z0-9]+"|cut -d" " -f2);do
        createRule $i adsl$count
        count=$((count+1))
    done
}

getAllDefault