#!/bin/sh
[ -z "$1" ] && echo "Error: should be run by udhcpc" && exit 1
+
. /etc/functions.sh
include /lib/network
-
RESOLV_CONF="/tmp/resolv.conf.auto"
-hotplug_event() {
- scan_interfaces
- for ifc in $interfaces; do
- config_get ifname $ifc ifname
- [ "$ifname" = "$interface" ] || continue
-
- config_get proto $ifc proto
- [ "$proto" = "dhcp" ] || continue
+change_state () {
+ [ -n "$ifc" ] || return
+ uci_revert_state "$1" "$2" "$3" "$4"
+ uci_set_state "$1" "$2" "$3" "$4"
+}
- env -i ACTION="$1" INTERFACE="$ifc" DEVICE="$ifname" PROTO=dhcp /sbin/hotplug iface
+set_classless_routes() {
+ local max=128
+ local type
+ while [ -n "$1" -a -n "$2" -a $max -gt 0 ]; do
+ [ ${1##*/} -eq 32 ] && type=host || type=net
+ echo "udhcpc: adding route for $type $1 via $2"
+ route add -$type "$1" gw "$2" dev "$interface"
+ max=$(($max-1))
+ shift 2
done
}
-case "$1" in
- deconfig)
- ifconfig $interface 0.0.0.0
- hotplug_event ifdown
- ;;
- renew|bound)
- ifconfig $interface $ip \
- netmask ${subnet:-255.255.255.0} \
- broadcast ${broadcast:-+}
-
- if [ -n "$router" ] ; then
- echo "deleting routers"
- while route del default gw 0.0.0.0 dev $interface >&- 2>&- ; do :; done
-
- for i in $router ; do
- echo "adding router $i"
- route add default gw $i dev $interface
- done
- fi
+setup_interface () {
+ local old_ip
+ local old_broadcast
+ local old_subnet
+ local old_router
+ local old_dns
+ local user_dns
+ local user_router
+ local user_metric
+
+ [ -n "$ifc" ] && {
+ old_ip="$(uci_get_state network "$ifc" ipaddr)"
+ old_broadcast="$(uci_get_state network "$ifc" broadcast)"
+ old_subnet="$(uci_get_state network "$ifc" netmask)"
+ }
+
+ [ "$ip" != "$old_ip" ] \
+ || [ "${broadcast:-+}" != "$old_broadcast" ] \
+ || [ "${subnet:-255.255.255.0}" != "$old_subnet" ] && {
+ echo "udhcpc: ifconfig $interface $ip netmask ${subnet:-255.255.255.0} broadcast ${broadcast:-+}"
+ ifconfig $interface $ip netmask ${subnet:-255.255.255.0} broadcast ${broadcast:-+}
+
+ change_state network "$ifc" ipaddr "$ip"
+ change_state network "$ifc" broadcast "${broadcast:-+}"
+ change_state network "$ifc" netmask "${subnet:-255.255.255.0}"
+ }
+
+
+ # Default Route
+ [ -n "$ifc" ] && {
+ change_state network "$ifc" lease_gateway "$router"
+ old_router="$(uci_get_state network "$ifc" gateway)"
+ user_router="$(uci_get network "$ifc" gateway)"
+ user_metric="$(uci_get network "$ifc" metric)"
+ [ -n "$user_router" ] && router="$user_router"
+ }
+
+ [ -n "$router" ] && [ "$router" != "0.0.0.0" ] && [ "$router" != "255.255.255.255" ] && [ "$router" != "$old_router" ] && {
+ echo "udhcpc: setting default routers: $router"
+
+ local valid_gw=""
+ for i in $router ; do
+ route add default gw $i ${user_metric:+metric $user_metric} dev $interface
+ valid_gw="${valid_gw:+$valid_gw|}$i"
+ done
- [ -n "$dns" ] && {
- echo -n > $RESOLV_CONF
- ${domain:+echo search $domain} >> $RESOLV_CONF
- for i in $dns ; do
- echo "adding dns $i"
- echo "nameserver $i" >> $RESOLV_CONF
- done
+ eval $(route -n | awk '
+ /^0.0.0.0\W{9}('$valid_gw')\W/ {next}
+ /^0.0.0.0/ {print "route del -net "$1" gw "$2";"}
+ ')
+
+ change_state network "$ifc" gateway "$router"
+ }
+
+ # CIDR STATIC ROUTES (rfc3442)
+ [ -n "$staticroutes" ] && set_classless_routes $staticroutes
+ [ -n "$msstaticroutes" ] && set_classless_routes $msstaticroutes
+
+ # DNS
+ old_dns=$(uci_get_state network "$ifc" dns)
+ old_domain=$(uci_get_state network "$ifc" dnsdomain)
+ user_dns=$(uci_get "network.$ifc.dns")
+ [ -n "$user_dns" ] && dns="$user_dns"
+
+ [ -n "$dns" ] && [ "$dns" != "$old_dns" -o -n "$user_dns" ] && {
+ echo "udhcpc: setting dns servers: $dns"
+ add_dns "$ifc" $dns
+
+ [ -n "$domain" ] && [ "$domain" != "$old_domain" ] && {
+ echo "udhcpc: setting dns domain: $domain"
+ sed -i -e "${old_domain:+/^search $old_domain$/d; }/^search $domain$/d" "${RESOLV_CONF}"
+ echo "search $domain" >> "${RESOLV_CONF}"
+ change_state network "$ifc" dnsdomain "$domain"
}
-
- hotplug_event ifup
-
- # user rules
- [ -f /etc/udhcpc.user ] && . /etc/udhcpc.user
- ;;
-esac
+ }
+
+ [ -n "$ifc" ] || return
+
+ # UCI State
+ change_state network "$ifc" lease_server "$serverid"
+ change_state network "$ifc" lease_acquired "$(sed -ne 's![^0-9].*$!!p' /proc/uptime)"
+ change_state network "$ifc" lease_lifetime "$lease"
+ [ -n "$ntpsrv" ] && change_state network "$ifc" lease_ntpsrv "$ntpsrv"
+ [ -n "$timesvr" ] && change_state network "$ifc" lease_timesrv "$timesvr"
+ [ -n "$hostname" ] && change_state network "$ifc" lease_hostname "$hostname"
+ [ -n "$timezone" ] && change_state network "$ifc" lease_timezone "$timezone"
+
+
+ # Hotplug
+ env -i ACTION="$1" INTERFACE="$ifc" DEVICE="$ifname" PROTO=dhcp /sbin/hotplug-call iface
+}
+
+
+scan_interfaces
+applied=
+for ifc in $interfaces __default; do
+ if [ "$ifc" = __default ]; then
+ ifc=""
+ [ -n "$applied" ] && continue
+ else
+ config_get ifname "$ifc" ifname
+ [ "$ifname" = "$interface" ] || continue
+
+ config_get proto "$ifc" proto
+ [ "$proto" = "dhcp" ] || continue
+ applied=true
+ fi
+
+ case "$1" in
+ deconfig)
+ ifconfig "$interface" 0.0.0.0
+ [ -n "$ifc" ] && {
+ env -i ACTION="ifdown" INTERFACE="$ifc" DEVICE="$ifname" PROTO=dhcp /sbin/hotplug-call iface
+
+ config_get device "$ifc" device
+ config_get ifname "$ifc" ifname
+ config_get aliases "$ifc" aliases
+ uci_revert_state network "$ifc"
+ [ -n "$device" ] && uci_set_state network "$ifc" device "$device"
+ [ -n "$ifname" ] && uci_set_state network "$ifc" ifname "$ifname"
+ [ -n "$aliases" ] && uci_set_state network "$ifc" aliases "$aliases"
+ }
+ ;;
+ renew)
+ setup_interface update
+ ;;
+ bound)
+ setup_interface ifup
+ ;;
+ esac
+done
+
+# user rules
+[ -f /etc/udhcpc.user ] && . /etc/udhcpc.user
exit 0
projects / openwrt.git / blobdiff