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#!/bin/bash |
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#!/bin/bash |
# author : Petr Simandl www.simandl.cz |
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# author : Petr Simandl www.simandl.cz |
# release date : 08/09/2006 |
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# release date : 20/10/2006 |
# name : sedlo |
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# name : sedlo |
# description : dynamic side routing tables tool |
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# description : dynamic side routing tables tool |
# license : GPL |
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# license : GPL |
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sl_version="0.0.4pre4" |
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sl_version="0.0.4pre5" |
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PATH=$PATH:/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin |
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PATH=$PATH:/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin |
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sl_nmcnf="sedlo.conf" |
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sl_nmcnf="sedlo.conf" |
sl_sedlocnf="/etc/$sl_nmcnf" |
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sl_sedlocnf="/etc/$sl_nmcnf" |
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for sl_igw in $sl_igws |
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for sl_igw in $sl_igws |
do |
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do |
sl_igwn=`echo $sl_igw | $sl_awkcmd -F '*' '{print $1}'` |
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sl_igwn=`echo $sl_igw | $sl_awkcmd -F '*' '{print $1}'` |
sl_igwip=`echo $sl_igw | $sl_awkcmd -F '*' '{print $2}'` |
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sl_igwip=`echo $sl_igw | $sl_awkcmd -F '*' '{print $2}'` |
sl_igwtype=`echo $sl_igw | $sl_awkcmd -F '*' '{print $3}'` |
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sl_igwtype=`echo $sl_igw | $sl_awkcmd -F '*' '{print $3}'` |
sl_igwgt=`$sl_ipcmd ro ls | $sl_grepcmd "^$sl_igwip " | $sl_awkcmd '{print $3}'` |
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#oprava falesneho routovani na lokalni iface - pokud jsme lokalni igw tak se nema najit ip |
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#protoze cesta dal neni - jsme totiz uz na lokalnim iface |
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sl_igwgt=`$sl_ipcmd ro ls | $sl_grepcmd -v "proto kernel" | $sl_grepcmd "^$sl_igwip " | $sl_awkcmd '{print $3}'` |
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# equal cost multipath detection - just first IP is taken as way to igw |
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# equal cost multipath detection - just first IP is taken as way to igw |
if [ "$sl_igwgt x" = "zebra x" ] |
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if [ "$sl_igwgt x" = "zebra x" ] |
then |
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then |
sl_igwgt=`$sl_ipcmd ro ls | $sl_grepcmd -A 1 "^$sl_igwip " | $sl_grepcmd "nexthop" | $sl_awkcmd '{print $3}'` |
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sl_igwgt=`$sl_ipcmd ro ls | $sl_grepcmd -A 1 "^$sl_igwip " | $sl_grepcmd "nexthop" | $sl_awkcmd '{print $3}'` |
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#if myigw then fill table for local gateway with single ip from config |
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#if myigw then fill table for local gateway with single ip from config |
if [ "$sl_igwtype x" = "myigw x" ] |
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if [ "$sl_igwtype x" = "myigw x" ] |
then |
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then |
sl_igwgt=$sl_igwip |
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sl_igwgt=$sl_igwip |
fi |
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fi |
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#testing if the igw has not a route in global routing table |
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#testing if the igw has not a route in global routing table |
if [ "$sl_igwgt x" = " x" ] |
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if [ "$sl_igwgt x" = " x" ] |
then |
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then |
if [ $scm_info -gt 1 ]; then echo "Route not found for igw $sl_igwn" ; fi |
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if [ $scm_info -gt 1 ]; then echo "Route not found for igw $sl_igwn" ; fi |
sl_myigw=`cat $sl_sedlocnf | $sl_grepcmd "^myigw" | $sl_grepcmd $sl_igwn | $sl_awkcmd '{print $3}'` |
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sl_myigw=`cat $sl_sedlocnf | $sl_grepcmd "^myigw" | $sl_grepcmd $sl_igwn | $sl_awkcmd '{print $3}'` |
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if [ "$sl_igwogt x" = "$sl_igwgt x" ] |
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if [ "$sl_igwogt x" = "$sl_igwgt x" ] |
then |
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then |
if [ $scm_info -gt 1 ]; then echo "Table $sl_igwn will not be changed and default is $sl_igwgt" ; fi |
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if [ $scm_info -gt 1 ]; then echo "Table $sl_igwn will not be changed and default is $sl_igwgt" ; fi |
else |
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else |
#the new default is different so we will flush the table, fill new default |
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#the new default is different so we will flush the table, fill new default |
if [ $scm_info -gt 1 ]; then echo "Table $sl_igwn will be rewritten to default $sl_igwgt" ; fi |
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if [ $scm_info -gt 1 ]; then echo "Table $sl_igwn will be $sl_igwogt rewritten to default $sl_igwgt" ; fi |
#flushing old default route in the table |
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#flushing old default route in the table |
$sl_ipcmd ro fl ta $sl_igwn |
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$sl_ipcmd ro fl ta $sl_igwn |
#filling new default |
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#filling new default |
$sl_ipcmd ro add 0.0.0.0/1 via $sl_igwgt ta $sl_igwn |
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$sl_ipcmd ro add 0.0.0.0/1 via $sl_igwgt ta $sl_igwn |
$sl_ipcmd ro add 128.0.0.0/1 via $sl_igwgt ta $sl_igwn |
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$sl_ipcmd ro add 128.0.0.0/1 via $sl_igwgt ta $sl_igwn |
