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86 lines
1.9 KiB
Bash
Executable File
86 lines
1.9 KiB
Bash
Executable File
#!/bin/sh
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[ -z "$1" ] && echo "Error: should be run by udhcpc" && exit 1
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. /etc/functions.sh
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include /lib/network
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RESOLV_CONF="/tmp/resolv.conf.auto"
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hotplug_event() {
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scan_interfaces
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for ifc in $interfaces; do
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config_get ifname $ifc ifname
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[ "$ifname" = "$interface" ] || continue
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config_get proto $ifc proto
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[ "$proto" = "dhcp" ] || continue
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[ ifup = "$1" ] && {
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config_get userdns "$ifc" dns
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[ -n "$userdns" ] && {
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for i in $userdns; do
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echo "custom dns $i"
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echo "nameserver $i" >> "${RESOLV_CONF}.tmp"
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done
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dns="$userdns"
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}
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uci_set_state network "$ifc" ipaddr "$ip"
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uci_set_state network "$ifc" netmask "${subnet:-255.255.255.0}"
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uci_set_state network "$ifc" dnsdomain "$domain"
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uci_set_state network "$ifc" dns "$dns"
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uci_set_state network "$ifc" gateway "$router"
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}
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env -i ACTION="$1" INTERFACE="$ifc" DEVICE="$ifname" PROTO=dhcp /sbin/hotplug-call iface
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done
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}
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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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hotplug_event ifdown
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;;
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renew|bound)
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ifconfig $interface $ip \
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netmask ${subnet:-255.255.255.0} \
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broadcast ${broadcast:-+}
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[ -n "$router" ] && {
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for i in $router ; do
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echo "adding router $i"
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route add default gw $i dev $interface
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valid="$valid|$i"
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done
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echo "deleting old routes"
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$(route -n | awk '/^0.0.0.0\W{9}('$valid')\W/ {next} /^0.0.0.0/ {print "route del -net "$1" gw "$2";"}')
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}
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[ -n "$dns" ] && \
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echo -n > "${RESOLV_CONF}.tmp"
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if [ "$1" = "renew" ]; then
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hotplug_event update
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else
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hotplug_event ifup
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fi
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[ -n "$dns" ] && {
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[ -s "${RESOLV_CONF}.tmp" ] || {
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for i in $dns ; do
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echo "adding dns $i"
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echo "nameserver $i" >> "${RESOLV_CONF}.tmp"
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done
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}
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${domain:+echo search $domain} >> "${RESOLV_CONF}.tmp"
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mv "${RESOLV_CONF}.tmp" "$RESOLV_CONF"
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}
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# user rules
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[ -f /etc/udhcpc.user ] && . /etc/udhcpc.user
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;;
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esac
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exit 0
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