add cname section
[openwrt/svn-archive/archive.git] / package / base-files / files / usr / share / udhcpc / default.script
index 30e84e6..8dbff47 100755 (executable)
 #!/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
-       config_load /var/state/network
-       for ifc in $interfaces; do
-               config_get ifname $ifc ifname
-               [ "$ifname" = "$interface" ] || continue
+change_state () {
+       [ -n "$ifc" ] || return
+       uci_revert_state "$1" "$2" "$3" "$4"
+       uci_set_state "$1" "$2" "$3" "$4"
+}
 
-               config_get proto $ifc proto
-               [ "$proto" = "dhcp" ] || continue
-               [ ifup = "$1" ] && {
-                       uci set "/var/state/network.$ifc.ipaddr=$ip"
-                       uci set "/var/state/network.$ifc.netmask=${subnet:-255.255.255.0}"
-                       uci set "/var/state/network.$ifc.dnsdomain=$domain"
-                       uci set "/var/state/network.$ifc.dns=$dns"
-                       uci set "/var/state/network.$ifc.gateway=$router"
-               }
-               env -i ACTION="$1" INTERFACE="$ifc" DEVICE="$ifname" PROTO=dhcp /sbin/hotplug-call 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 ${broadcast:-+}
-
-               [ -n "$router" ] && {
-                       for i in $router ; do
-                               echo "adding router $i"
-                               route add default gw $i dev $interface
-                               valid="$valid|$i"
-
-                       done
-
-                       echo "deleting old routes"
-                       $(route -n | awk '/^0.0.0.0\W{9}('$valid')\W/ {next} /^0.0.0.0/ {print "route del -net "$1" gw "$2";"}')
-               }
+setup_interface () {
+       local old_ip
+       local old_broadcast
+       local old_subnet
+       local old_router
+       local old_dns
+       local user_dns
+       local user_router
+       local user_metric
+
+       [ -n "$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}.tmp"
-                       ${domain:+echo search $domain} >> "${RESOLV_CONF}.tmp"
-                       for i in $dns ; do
-                               echo "adding dns $i"
-                               echo "nameserver $i" >> "${RESOLV_CONF}.tmp"
-                       done
-                       mv "${RESOLV_CONF}.tmp" "$RESOLV_CONF"
+               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