netifd: add a new udhcpc default script for command line use (no uci support)
SVN-Revision: 30741
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57
package/netifd/files/usr/share/udhcpc/default.script
Executable file
57
package/netifd/files/usr/share/udhcpc/default.script
Executable file
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#!/bin/sh
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[ -z "$1" ] && echo "Error: should be run by udhcpc" && exit 1
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set_classless_routes() {
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local max=128
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local type
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while [ -n "$1" -a -n "$2" -a $max -gt 0 ]; do
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[ ${1##*/} -eq 32 ] && type=host || type=net
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echo "udhcpc: adding route for $type $1 via $2"
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route add -$type "$1" gw "$2" dev "$interface"
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max=$(($max-1))
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shift 2
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done
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}
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setup_interface() {
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echo "udhcpc: ifconfig $interface $ip netmask ${subnet:-255.255.255.0} broadcast ${broadcast:-+}"
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ifconfig $interface $ip netmask ${subnet:-255.255.255.0} broadcast ${broadcast:-+}
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[ -n "$router" ] && [ "$router" != "0.0.0.0" ] && [ "$router" != "255.255.255.255" ] && {
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echo "udhcpc: setting default routers: $router"
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local valid_gw=""
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for i in $router ; do
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route add default gw $i dev $interface
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valid_gw="${valid_gw:+$valid_gw|}$i"
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done
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eval $(route -n | awk '
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/^0.0.0.0\W{9}('$valid_gw')\W/ {next}
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/^0.0.0.0/ {print "route del -net "$1" gw "$2";"}
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')
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}
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# CIDR STATIC ROUTES (rfc3442)
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[ -n "$staticroutes" ] && set_classless_routes $staticroutes
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[ -n "$msstaticroutes" ] && set_classless_routes $msstaticroutes
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}
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applied=
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case "$1" in
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deconfig)
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ifconfig "$interface" 0.0.0.0
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;;
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renew)
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setup_interface update
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;;
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bound)
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setup_interface ifup
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;;
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esac
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# user rules
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[ -f /etc/udhcpc.user ] && . /etc/udhcpc.user
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exit 0
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