network: Support bridge mode for zones

[people/dweismueller/ipfire-2.x.git] / config / udev / network-hotplug-macvtap

diff --git a/config/udev/network-hotplug-macvtap b/config/udev/network-hotplug-macvtap
index 7f5da12cbebc042cf9105ac2778653179d09dc8d..ff6d20a8b2be69837a8f3eeb433bf225bf85a487 100644 (file)
--- a/config/udev/network-hotplug-macvtap
+++ b/config/udev/network-hotplug-macvtap
@@ -23,24 +23,92 @@
 
 [ -n "${INTERFACE}" ] || exit 2
 
-PHYSICAL_INTERFACE="${INTERFACE}"
-VIRTUAL_INTERFACE="${INTERFACE%phys}"
-#VIRTUAL_INTERFACE="${VIRTUAL_INTERFACE}0"
+eval $(/usr/local/bin/readhash /var/ipfire/ethernet/settings)
 
-# Do nothing if the physical interface does not end with "phys"
-case "${PHYSICAL_INTERFACE}" in
-       *phys)
+detect_zone() {
+       local intf="${INTERFACE%0*}"
+       intf="${intf^^}"
+
+       local zone
+       for zone in GREEN BLUE ORANGE RED; do
+               # Try to find if INTERFACE is the *phys version of a zone
+               if [ "${intf}" = "${zone}" ]; then
+                       echo "${zone}"
+                       return 0
+               fi
+
+               # Try to find out if this INTERFACE is a slave of a zone
+               local slave
+               for slave in $(get_value "${zone}_SLAVES"); do
+                       if [ "${INTERFACE}" = "${slave}" ]; then
+                               echo "${zone}"
+                               return 0
+                       fi
+               done
+       done
+
+       return 1
+}
+
+get_value() {
+       echo "${!1}"
+}
+
+random_mac_address() {
+       local address="02"
+
+       for i in $(seq 5); do
+               printf -v address "${address}:%02x" "$(( RANDOM % 256 ))"
+       done
+
+       echo "${address}"
+}
+
+# Try to detect which zone we are operating on
+ZONE=$(detect_zone)
+
+# Cannot proceed if we could not find a zone
+if [ -z "${ZONE}" ]; then
+       exit 0
+fi
+
+# Determine the mode of this zone
+MODE="$(get_value "${ZONE}_MODE")"
+
+# The name of the virtual bridge
+BRIDGE="$(get_value "${ZONE}_DEV")"
+
+case "${MODE}" in
+       bridge)
+               ADDRESS="$(get_value "${ZONE}_MACADDR")"
+               [ -n "${ADDRESS}" ] || ADDRESS="$(random_mac_address)"
+
+               # We need to create the bridge if it doesn't exist, yet
+               if [ ! -d "/sys/class/net/${BRIDGE}" ]; then
+                       ip link add "${BRIDGE}" address "${ADDRESS}" type bridge
+                       #ip link set "${BRIDGE}" up
+               fi
+
+               # Attach the physical device
+               ip link set dev "${INTERFACE}" master "${BRIDGE}"
+               ip link set dev "${INTERFACE}" up
                ;;
-       *)
-               exit 0
+
+       macvtap)
+               ADDRESS="$(</sys/class/net/${INTERFACE}/address)"
+               GENERATED_ADDRESS=$(random_mac_address)
+
+               ip link add link "${INTERFACE}" "${BRIDGE}" address "${ADDRESS}" type macvlan mode bridge
+               ip link set "${INTERFACE}" address "${GENERATED_ADDRESS}"
+               ip link set "${INTERFACE}" up
                ;;
-esac
 
-ADDRESS="$(</sys/class/net/${PHYSICAL_INTERFACE}/address)"
-rand="$(</proc/sys/kernel/random/uuid)"
-rand="${rand//-/}"
-GENERATED_ADDRESS=$(echo "02:${rand:0:2}:${rand:2:2}:${rand:4:2}:${rand:6:2}:${rand:8:2}")
+       "")
+               exit 0
+               ;;
 
-ip link add link "${PHYSICAL_INTERFACE}" "${VIRTUAL_INTERFACE}" address "${ADDRESS}" type macvlan mode bridge
-ip link set "${PHYSICAL_INTERFACE}" address "${GENERATED_ADDRESS}"
-ip link set "${PHYSICAL_INTERFACE}" up
+       *)
+               logger -t "network" "Unhandled mode '${MODE}' for '${ZONE}' (${INTERFACE})"
+               exit 1
+               ;;
+esac