9e43821e17
Prefer [ p ] && [ q ] as [ p -a q ] is not well defined. And likewise, prefer [ p ] || [ q ] over [ p -o q ]. https://github.com/koalaman/shellcheck/wiki/SC2166
126 lines
3.8 KiB
Bash
Executable File
126 lines
3.8 KiB
Bash
Executable File
#!/bin/bash
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# This script applies policy-based routing rules defined for the
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# connection in the /etc/sysconfig/network-scripts/ directory.
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#
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# This should be installed in both dispatcher.d/ and
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# dispatcher.d/pre-up.d/
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#
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# pre-up scripts delay activation of the device. To reduce the delay,
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# it is advised to install the script as symlink to no-wait.d directory.
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#
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# This file is derived from scripts 'if{up,down}-routes' from
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# Fedora/RHEL initscripts.
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MATCH='^[[:space:]]*(\#.*)?$'
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handle_file () {
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. $1
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routenum=0
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while [ "x$(eval echo '$'ADDRESS$routenum)x" != "xx" ]; do
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eval $(ipcalc -p $(eval echo '$'ADDRESS$routenum) $(eval echo '$'NETMASK$routenum))
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line="$(eval echo '$'ADDRESS$routenum)/$PREFIX"
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if [ "x$(eval echo '$'GATEWAY$routenum)x" != "xx" ]; then
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line="$line via $(eval echo '$'GATEWAY$routenum)"
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fi
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line="$line dev $2"
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/sbin/ip route add $line
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routenum=$(($routenum+1))
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done
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}
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handle_ip_file() {
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local f t type= file=$1 proto="-4"
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f=${file##*/}
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t=${f%%-*}
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type=${t%%6}
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if [ "$type" != "$t" ]; then
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proto="-6"
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fi
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{ cat "$file" ; echo ; } | while read line; do
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if [[ ! "$line" =~ $MATCH ]]; then
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/sbin/ip $proto $type add $line
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fi
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done
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}
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if [ "$2" != "pre-up" ] && [ "$2" != "down" ]; then
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exit 0
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fi
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dir=$(dirname "$CONNECTION_FILENAME")
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if [ "$dir" != "/etc/sysconfig/network-scripts" ]; then
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exit 0
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fi
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profile=$(basename "$CONNECTION_FILENAME" | sed -ne 's/^ifcfg-//p')
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if [ -z "$profile" ]; then
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exit 0
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fi
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if [ ! -f "$dir/rule-$profile" ] && [ ! -f "$dir/rule6-$profile" ]; then
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exit 0
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fi
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case "$2" in
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pre-up)
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# Routes
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FILES="/etc/sysconfig/network-scripts/route-$DEVICE_IP_IFACE"
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FILES="$FILES /etc/sysconfig/network-scripts/route6-$DEVICE_IP_IFACE"
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if [ "$profile" != "$DEVICE_IP_IFACE" ]; then
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FILES="$FILES /etc/sysconfig/network-scripts/route-$profile"
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FILES="$FILES /etc/sysconfig/network-scripts/route6-$profile"
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fi
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for file in $FILES; do
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if [ -f "$file" ]; then
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if grep -Eq '^[[:space:]]*ADDRESS[0-9]+=' $file ; then
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# new format
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handle_file $file ${1%:*}
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else
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# older format
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handle_ip_file $file
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fi
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fi
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done
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# Rules
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FILES="/etc/sysconfig/network-scripts/rule-$DEVICE_IP_IFACE"
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FILES="$FILES /etc/sysconfig/network-scripts/rule6-$DEVICE_IP_IFACE"
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if [ "$profile" != "$DEVICE_IP_IFACE" ]; then
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FILES="$FILES /etc/sysconfig/network-scripts/rule-$profile"
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FILES="$FILES /etc/sysconfig/network-scripts/rule6-$profile"
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fi
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for file in $FILES; do
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if [ -f "$file" ]; then
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handle_ip_file $file
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fi
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done
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;;
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down)
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# Routes are deleted by NetworkManager
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# Rules
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FILES="/etc/sysconfig/network-scripts/rule-$DEVICE_IP_IFACE"
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FILES="$FILES /etc/sysconfig/network-scripts/rule6-$DEVICE_IP_IFACE"
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if [ "$profile" != "$DEVICE_IP_IFACE" ]; then
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FILES="$FILES /etc/sysconfig/network-scripts/rule-$profile"
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FILES="$FILES /etc/sysconfig/network-scripts/rule6-$profile"
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fi
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for file in $FILES; do
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if [ -f "$file" ]; then
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proto=
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if [ "$file" != "${file##*/rule6-}" ]; then
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proto="-6"
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fi
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{ cat "$file" ; echo ; } | while read line; do
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if [[ ! "$line" =~ $MATCH ]]; then
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/sbin/ip $proto rule del $line
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fi
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done
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fi
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done
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;;
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esac
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