| Rev 10 |
|
Rev 11 |
| Line 1... |
|
Line 1... |
#!/bin/bash |
|
#!/bin/bash |
# author : Petr Simandl www.simandl.cz |
|
# author : Petr Simandl www.simandl.cz |
# release date : 26/01/2006 |
|
# release date : 06/08/2006 |
# name : sedlo |
|
# name : sedlo |
# description : dynamic side routing tables tool |
|
# description : dynamic side routing tables tool |
# license : GPL |
|
# license : GPL |
|
|
|
sl_version="0.0.4pre1" |
|
sl_version="0.0.4pre2" |
|
|
|
PATH=$PATH:/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin |
|
PATH=$PATH:/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin |
|
|
|
sl_nmcnf="sedlo.conf" |
|
sl_nmcnf="sedlo.conf" |
sl_sedlocnf="/etc/$sl_nmcnf" |
|
sl_sedlocnf="/etc/$sl_nmcnf" |
| Line 156... |
|
Line 156... |
#if myigw then fill table for local gateway with single ip from config |
|
#if myigw then fill table for local gateway with single ip from config |
if [ "$sl_igwtype x" = "myigw x" ] |
|
if [ "$sl_igwtype x" = "myigw x" ] |
then |
|
then |
sl_igwgt=$sl_igwip |
|
sl_igwgt=$sl_igwip |
fi |
|
fi |
|
|
|
| |
|
#testing if the igw has not a route in global routing table |
if [ "$sl_igwgt x" = " x" ] |
|
if [ "$sl_igwgt x" = " x" ] |
then |
|
then |
if [ $scm_info -gt 1 ]; then echo "Route not found for igw $sl_igwn - leaving table as is" ; fi |
|
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 $3}'` |
| |
|
#testing if the igw without route is in local config |
| |
|
#if not we go to flush its table and set flag to redo rules |
| |
|
if [ "$sl_myigw x" = " x" ] |
| |
|
then |
| |
|
#getting num of routes of igw |
| |
|
sl_igwnr=`$sl_ipcmd ro ls ta all | $sl_grepcmd -c $sl_igwn` |
| |
|
if [ "$sl_igwnr x" = "0 x" ] |
| |
|
then |
| |
|
if [ $scm_info -gt 1 ]; then echo "Igw $sl_igwn is already empty - no action taken" ; fi |
| |
|
else |
| |
|
if [ $scm_info -gt 1 ]; then echo "Igw $sl_igwn will be flushed and rules rearranged" ; fi |
| |
|
$sl_ipcmd ro fl ta $sl_igwn |
| |
|
#because this igw dissapeared we set a flag for rules recreation |
| |
|
sl_diffigw=1 |
| |
|
fi |
| |
|
else |
| |
|
echo "Igw $sl_igwn found in local config - leaving table as is" |
| |
|
fi |
| |
|
|
else |
|
else |
sl_tbl=`$sl_ipcmd ro ls ta $sl_igwn` |
|
sl_tbl=`$sl_ipcmd ro ls ta $sl_igwn` |
if [ "$sl_tbl x" != " x" ] |
|
if [ "$sl_tbl x" != " x" ] |
then |
|
then |
$sl_ipcmd ro fl ta $sl_igwn |
|
$sl_ipcmd ro fl ta $sl_igwn |
| Line 190... |
|
Line 211... |
# because there is space enough and after reboot table will not be created |
|
# because there is space enough and after reboot table will not be created |
s_mktables() |
|
s_mktables() |
{ |
|
{ |
if [ $scm_info -gt 0 ]; then echo "Checking tables" ; fi |
|
if [ $scm_info -gt 0 ]; then echo "Checking tables" ; fi |
|
|
|
if [ $scm_info -gt 0 ]; then echo "Creating tables" ; fi |
|
|
sl_igws=`$sl_catcmd $sl_sedlocache/$sl_nmcnf | $sl_grepcmd -E "^igw|^myigw" | $sl_awkcmd '{print $3}'` |
|
sl_igws=`$sl_catcmd $sl_sedlocache/$sl_nmcnf | $sl_grepcmd -E "^igw|^myigw" | $sl_awkcmd '{print $3}'` |
for sl_igw in $sl_igws |
|
for sl_igw in $sl_igws |
do |
|
do |
sl_igwrttb=`$sl_catcmd $sl_rttab | $sl_awkcmd '{print $2}' | $sl_grepcmd $sl_igw ` |
|
sl_igwrttb=`$sl_catcmd $sl_rttab | $sl_awkcmd '{print $2}' | $sl_grepcmd $sl_igw ` |
if [ "$sl_igwrttb x" = " x" ] |
|
if [ "$sl_igwrttb x" = " x" ] |
| Line 210... |
|
Line 230... |
then |
|
then |
sl_ok="yes" |
|
sl_ok="yes" |
echo "$sl_cnt $sl_igw" >> $sl_rttab |
|
echo "$sl_cnt $sl_igw" >> $sl_rttab |
fi |
|
fi |
sl_cnt=$(($sl_cnt - 1 )) |
|
sl_cnt=$(($sl_cnt - 1 )) |
done |
|
done |
| |
|
# a new table was created so we should set a flag for rules creation |
| |
|
sl_difftbl=1 |
else |
|
else |
if [ $scm_info -gt 1 ]; then echo "Table found for $sl_igw no action taken" ; fi |
|
if [ $scm_info -gt 1 ]; then echo "Table found for $sl_igw no action taken" ; fi |
fi |
|
fi |
done |
|
done |
|
|
|
} # s_mktables |
|
} # s_mktables |
|
|
|
###################################################################### |
|
###################################################################### |
s_getcfg() |
|
s_getcfg() |
{ |
|
{ |
| Line 275... |
|
Line 296... |
if [ $scm_info -gt 0 ]; then echo "New config is different than the old one" ; fi |
|
if [ $scm_info -gt 0 ]; then echo "New config is different than the old one" ; fi |
else |
|
else |
if [ $scm_info -gt 0 ]; then echo "New config is the same as the old one" ; fi |
|
if [ $scm_info -gt 0 ]; then echo "New config is the same as the old one" ; fi |
fi |
|
fi |
|
|
|
# to detect first start after reboot or rule flushig we compare config with rule number |
|
# showing number of rules in config and system |
# when we have less rules than ips in config then |
|
|
sl_numru=`ip ru ls | grep -c lookup` |
|
sl_numru=`ip ru ls | grep -c lookup` |
sl_numip=`grep -c ^ip $sl_sedlocache/$sl_nmcnf` |
|
sl_numip=`grep -c ^ip $sl_sedlocache/$sl_nmcnf` |
sl_numru=$(($sl_numru - 3 )) |
|
sl_numru=$(($sl_numru - 3 )) |
if [ $sl_numip -gt $sl_numru ] |
|
if [ $sl_numip -gt $sl_numru ] |
then |
|
then |
if [ $scm_info -gt 0 ]; then echo "We have less rules ($sl_numru) than new config has ips ($sl_numip)" ; fi |
|
if [ $scm_info -gt 0 ]; then echo "We have less rules ($sl_numru) than new config has ips ($sl_numip)" ; fi |
sl_diffcfg="1" |
|
# sl_diffcfg="1" |
else |
|
else |
if [ $scm_info -gt 0 ]; then echo "We have $sl_numru rules and $sl_numip ips" ; fi |
|
if [ $scm_info -gt 0 ]; then echo "We have $sl_numru rules and $sl_numip ips" ; fi |
fi |
|
fi |
|
|
|
} |
|
} |
| Line 332... |
|
Line 352... |
echo -v malo upovidany |
|
echo -v malo upovidany |
echo -vv hodne upovidany |
|
echo -vv hodne upovidany |
echo -nogetcfg zajisti ze se nedude znovu nacitat konfigurace a pouzije se predchozi z cache |
|
echo -nogetcfg zajisti ze se nedude znovu nacitat konfigurace a pouzije se predchozi z cache |
echo -report vypise prehled pravidel a tabulek |
|
echo -report vypise prehled pravidel a tabulek |
echo -flru odstrani vsechny pravidla |
|
echo -flru odstrani vsechny pravidla |
| |
|
echo -force bezpodminecne znovu obnovi vsechny pravidla |
} # s_help |
|
} # s_help |
|
|
|
###################################################################### |
|
###################################################################### |
###################################################################### |
|
###################################################################### |
|
|
|
sl_unknown="" |
|
sl_unknown="" |
scm_nogetcfg=0 |
|
scm_nogetcfg=0 |
scm_flru=0 |
|
scm_flru=0 |
scm_info=0 |
|
scm_info=0 |
| |
|
scm_force=0 |
| |
|
sl_diffigw=0 |
| |
|
sl_difftbl=0 |
|
|
|
# parsing input parameters |
|
# parsing input parameters |
while [ "a$1" != "a" ] |
|
while [ "a$1" != "a" ] |
do |
|
do |
case $1 in |
|
case $1 in |
| Line 360... |
|
Line 384... |
s_report |
|
s_report |
exit 0 |
|
exit 0 |
;; |
|
;; |
-flru) |
|
-flru) |
scm_flru=1 |
|
scm_flru=1 |
| |
|
shift |
| |
|
;; |
| |
|
-force) |
| |
|
scm_force=1 |
shift |
|
shift |
;; |
|
;; |
-help) |
|
-help) |
s_help |
|
s_help |
exit 0 |
|
exit 0 |
| Line 402... |
|
Line 430... |
|
|
|
if [ $scm_nogetcfg -eq 0 ] |
|
if [ $scm_nogetcfg -eq 0 ] |
then |
|
then |
s_getcfg |
|
s_getcfg |
fi |
|
fi |
|
|
|
|
|
|
s_mktables |
|
s_mktables |
s_filltables |
|
s_filltables |
| |
|
#echo $sl_difftbl |
| |
|
#echo $sl_diffcfg |
| |
|
#echo $sl_diffigw |
| |
|
#echo $scm_force |
|
|
|
if [ $sl_diffcfg -gt 0 ] |
|
#flushing and filling rules is done only when |
| |
|
#new table is created |
| |
|
#config is changed |
| |
|
#some igw dissapears or appears |
| |
|
#-force command line parameter was used |
| |
|
if [ $sl_difftbl -gt 0 ] || [ $sl_diffcfg -gt 0 ] || [ $sl_diffigw -gt 0 ] || [ $scm_force -gt 0 ] |
then |
|
then |
s_fillrules |
|
s_fillrules |
fi |
|
fi |
|
|
|
exit 0 |
|
exit 0 |
|
|
|
|
|
|
|
|
|
