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# release date : 1/11/2006 |
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# release date : 1/11/2006 |
# 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="0.0.4pre6" |
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sl_version="0.0.4pre7" |
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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" |
sl_sedlocache="/var/cache/sedlo" |
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sl_sedlocache="/var/cache/sedlo" |
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sl_rttab="/etc/iproute2/rt_tables" |
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sl_rttab="/etc/iproute2/rt_tables" |
sl_rtnmin=110 |
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sl_rtnmin=110 |
sl_rtnmax=200 |
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sl_rtnmax=200 |
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#all traffic that is handled as internal (CZF traffic) |
sl_ipnodef="10.0.0.0/8" |
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sl_ipnodef="10.0.0.0/8" |
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#this will specify rupriority in rule table |
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sl_priorules=10000 |
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#no default traffic will have rule at higher priority |
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sl_prionodef=$(($sl_priorules - 1)) |
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slm_unknown="Nezname parametry : " |
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slm_unknown="Nezname parametry : " |
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sl_ipcmd=`which ip` |
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sl_ipcmd=`which ip` |
sl_trcmd=`which tr` |
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sl_trcmd=`which tr` |
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sl_merged=`echo $sl_rules $sl_ips | sort | uniq` |
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sl_merged=`echo $sl_rules $sl_ips | sort | uniq` |
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echo $sl_merged |
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echo $sl_merged |
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} # s_maru |
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} # s_maru |
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###################################################################### |
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###################################################################### |
s_flru() |
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#this will delete all rules at sl_prionodef an sl_priorules priorities |
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s_flruall() |
{ |
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{ |
if [ $scm_info -gt 0 ]; then echo "Flushing all rules" ; fi |
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if [ $scm_info -gt 0 ]; then echo "Flushing all rules" ; fi |
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sl_rules=`$sl_ipcmd ru ls | $sl_grepcmd -v "from all lookup" | $sl_grepcmd " 10." | $sl_trcmd '[:blank:]' '*'` |
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sl_rules=`$sl_ipcmd ru ls | $sl_grepcmd "^"$sl_prionodef":" | $sl_trcmd '[:blank:]' '*'` |
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for sl_rule in $sl_rules |
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do |
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sl_ipgws=`echo $sl_rule | $sl_awkcmd -F '*' '{print $2,$3,$4,$5,$6,$7}'` |
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$sl_ipcmd ru del $sl_ipgws |
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#this should make faster applying of new routing tables |
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$sl_ipcmd ro flush cache |
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done |
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sl_rules=`$sl_ipcmd ru ls | $sl_grepcmd "^"$sl_priorules":" | $sl_trcmd '[:blank:]' '*'` |
for sl_rule in $sl_rules |
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for sl_rule in $sl_rules |
do |
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do |
# sl_ipn=`echo $sl_rule | $sl_awkcmd -F '*' '{print $2}'` |
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sl_ipgws=`echo $sl_rule | $sl_awkcmd -F '*' '{print $2,$3,$4,$5,$6,$7}'` |
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sl_ipgws=`echo $sl_rule | $sl_awkcmd -F '*' '{print $2,$3,$4,$5,$6,$7}'` |
$sl_ipcmd ru del $sl_ipgws |
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$sl_ipcmd ru del $sl_ipgws |
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#this should make faster applying of new routing tables |
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$sl_ipcmd ro flush cache |
done |
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done |
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#this should make faster applying of new routing tables |
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} # s_flruall |
$sl_ipcmd ro flush cache |
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###################################################################### |
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s_flru() |
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{ |
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if [ $scm_info -gt 0 ]; then echo "Flushing all rules" ; fi |
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sl_rules=`$sl_ipcmd ru ls | $sl_grepcmd ^$sl_priorules":" | $sl_trcmd '[:blank:]' '*'` |
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for sl_rule in $sl_rules |
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do |
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sl_ipgws=`echo $sl_rule | $sl_awkcmd -F '*' '{print $2,$3,$4,$5,$6,$7}'` |
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$sl_ipcmd ru del $sl_ipgws |
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#this should make faster applying of new routing tables |
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$sl_ipcmd ro flush cache |
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done |
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} # s_flru |
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} # s_flru |
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###################################################################### |
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s_checknodefru() |
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{ |
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#checking if we have present nodef rule and if not we create it |
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sl_nodefrule=`$sl_ipcmd ru ls | $sl_grepcmd "^"$sl_prionodef":" | $sl_trcmd '[:blank:]' '*'` |
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#echo $sl_nodefrule |
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if [ "$sl_nodefrule x" == " x" ] |
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then |
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if [ $scm_info -gt 0 ]; then echo "Creating rule for nodef route" ; fi |
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$sl_ipcmd ru add from $sl_ipnodef to $sl_ipnodef lookup main prio $sl_prionodef |
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echo "delam novou" |
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fi |
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} |
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###################################################################### |
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###################################################################### |
# here we get each ip and we create a rule to send this ip to a |
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# here we get each ip and we create a rule to send this ip to a |
# certain table |
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# certain table |
# this routine can be skipped when the number of ips and ip directions |
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# this routine can be skipped when the number of ips and ip directions |
# are still the same = old and new configs are the same |
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# are still the same = old and new configs are the same |
s_fillrules() |
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s_fillrules() |
{ |
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{ |
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#this will check no default rule if exists and if not it will be created |
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s_checknodefru |
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#flush old rules before filling new ones |
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#flush old rules before filling new ones |
#not so nice solution - it is planned to change just what's necessary |
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#not so nice solution - it is planned to change just what's necessary |
#by s_maru |
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#by s_maru |
s_flru |
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s_flru |
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for sl_ipgw in $sl_ipgws |
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for sl_ipgw in $sl_ipgws |
do |
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do |
sl_tbl=`$sl_ipcmd ro ls ta $sl_ipgw` |
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sl_tbl=`$sl_ipcmd ro ls ta $sl_ipgw` |
if [ "$sl_tbl x" != " x" ] && [ "$sl_ok" = "no" ] |
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if [ "$sl_tbl x" != " x" ] && [ "$sl_ok" = "no" ] |
then |
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then |
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#we have IP and GW |
if [ $scm_info -gt 1 ]; then echo "Creating new rules to send $sl_ipn to table $sl_ipgw" ; fi |
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if [ $scm_info -gt 1 ]; then echo "Creating new rules to send $sl_ipn to table $sl_ipgw" ; fi |
$sl_ipcmd ru add from $sl_ipn lookup $sl_ipgw |
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$sl_ipcmd ru add from $sl_ipn lookup $sl_ipgw prio $sl_priorules |
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#this should make faster applying of new routing tables |
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$sl_ipcmd ro flush cache |
sl_ok="yes" |
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sl_ok="yes" |
else |
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else |
if [ "$sl_ok" = "no" ] |
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if [ "$sl_ok" = "no" ] |
then |
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then |
if [ $scm_info -gt 1 ]; then echo "For $sl_ipn table $sl_ipgw not used because it is empty" ; fi |
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if [ $scm_info -gt 1 ]; then echo "For $sl_ipn table $sl_ipgw not used because it is empty" ; fi |
else |
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else |
if [ $scm_info -gt 1 ]; then echo "For $sl_ipn table $sl_ipgw not used because it has lower priority" ; fi |
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if [ $scm_info -gt 1 ]; then echo "For $sl_ipn table $sl_ipgw not used because it has lower priority" ; fi |
fi |
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fi |
fi |
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fi |
done |
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done |
done |
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done |
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$sl_ipcmd ru add from $sl_ipnodef to $sl_ipnodef lookup main |
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#this should make faster applying of new routing tables |
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$sl_ipcmd ro flush cache |
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} # s_fillrules |
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} # s_fillrules |
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###################################################################### |
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###################################################################### |
# here we look into the main routing table for path to our iGWs |
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# here we look into the main routing table for path to our iGWs |
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exit 0 |
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exit 0 |
fi |
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fi |
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if [ $scm_flru -eq 1 ] |
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if [ $scm_flru -eq 1 ] |
then |
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then |
s_flru |
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s_flruall |
exit 0 |
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exit 0 |
fi |
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fi |
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if [ $scm_nogetcfg -eq 0 ] |
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if [ $scm_nogetcfg -eq 0 ] |
then |
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then |
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#-force command line parameter was used |
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#-force command line parameter was used |
if [ $sl_difftbl -gt 0 ] || [ $sl_diffcfg -gt 0 ] || [ $sl_diffigw -gt 0 ] || [ $scm_force -gt 0 ] |
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if [ $sl_difftbl -gt 0 ] || [ $sl_diffcfg -gt 0 ] || [ $sl_diffigw -gt 0 ] || [ $scm_force -gt 0 ] |
then |
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then |
s_fillrules |
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s_fillrules |
fi |
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fi |
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exit 0 |
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exit 0 |
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