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|
#!/bin/bash
# This script applies policy-based routing rules defined for the
# connection in the /etc/sysconfig/network-scripts/ directory.
#
# This should be installed in both dispatcher.d/ and
# dispatcher.d/pre-up.d/
#
# pre-up scripts delay activation of the device. To reduce the delay,
# it is advised to install the script as symlink to no-wait.d directory.
#
# This file is derived from scripts 'if{up,down}-routes' from
# Fedora/RHEL initscripts.
if [ "$2" != "pre-up" ] && [ "$2" != "down" ]; then
exit 0
fi
file_regex='^/etc/sysconfig/network-scripts/ifcfg-([^/]+)$'
[[ "$CONNECTION_FILENAME" =~ $file_regex ]] || exit 0
profile="${BASH_REMATCH[1]}"
if [ ! -f "/etc/sysconfig/network-scripts/rule-$profile" ] && [ ! -f "/etc/sysconfig/network-scripts/rule6-$profile" ]; then
exit 0
fi
MATCH='^[[:space:]]*(\#.*)?$'
handle_file () {
. $1
routenum=0
while [ "x$(eval echo '$'ADDRESS$routenum)x" != "xx" ]; do
eval $(ipcalc -p $(eval echo '$'ADDRESS$routenum) $(eval echo '$'NETMASK$routenum))
line="$(eval echo '$'ADDRESS$routenum)/$PREFIX"
if [ "x$(eval echo '$'GATEWAY$routenum)x" != "xx" ]; then
line="$line via $(eval echo '$'GATEWAY$routenum)"
fi
line="$line dev $2"
/sbin/ip route add $line
routenum=$(($routenum+1))
done
}
handle_ip_file() {
local f t type= file=$1 proto="-4"
f=${file##*/}
t=${f%%-*}
type=${t%%6}
if [ "$type" != "$t" ]; then
proto="-6"
fi
{ cat "$file" ; echo ; } | while read line; do
if [[ ! "$line" =~ $MATCH ]]; then
/sbin/ip $proto $type add $line
fi
done
}
case "$2" in
pre-up)
# Routes
FILES="/etc/sysconfig/network-scripts/route-$DEVICE_IP_IFACE"
FILES="$FILES /etc/sysconfig/network-scripts/route6-$DEVICE_IP_IFACE"
if [ "$profile" != "$DEVICE_IP_IFACE" ]; then
FILES="$FILES /etc/sysconfig/network-scripts/route-$profile"
FILES="$FILES /etc/sysconfig/network-scripts/route6-$profile"
fi
for file in $FILES; do
if [ -f "$file" ]; then
if grep -Eq '^[[:space:]]*ADDRESS[0-9]+=' $file ; then
# new format
handle_file $file ${1%:*}
else
# older format
handle_ip_file $file
fi
fi
done
# Rules
FILES="/etc/sysconfig/network-scripts/rule-$DEVICE_IP_IFACE"
FILES="$FILES /etc/sysconfig/network-scripts/rule6-$DEVICE_IP_IFACE"
if [ "$profile" != "$DEVICE_IP_IFACE" ]; then
FILES="$FILES /etc/sysconfig/network-scripts/rule-$profile"
FILES="$FILES /etc/sysconfig/network-scripts/rule6-$profile"
fi
for file in $FILES; do
if [ -f "$file" ]; then
handle_ip_file $file
fi
done
;;
down)
# Routes are deleted by NetworkManager
# Rules
FILES="/etc/sysconfig/network-scripts/rule-$DEVICE_IP_IFACE"
FILES="$FILES /etc/sysconfig/network-scripts/rule6-$DEVICE_IP_IFACE"
if [ "$profile" != "$DEVICE_IP_IFACE" ]; then
FILES="$FILES /etc/sysconfig/network-scripts/rule-$profile"
FILES="$FILES /etc/sysconfig/network-scripts/rule6-$profile"
fi
for file in $FILES; do
if [ -f "$file" ]; then
proto=
if [ "$file" != "${file##*/rule6-}" ]; then
proto="-6"
fi
{ cat "$file" ; echo ; } | while read line; do
if [[ ! "$line" =~ $MATCH ]]; then
/sbin/ip $proto rule del $line
fi
done
fi
done
;;
esac
|
