--- /dev/null
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=vfconfig
+PKG_RELEASE:=1
+PKG_LICENSE:=GPL-2.0
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/vfconfig
+ SECTION:=net
+ CATEGORY:=Network
+ MAINTAINER:=Jo-Philipp Wich <jo@mein.io>
+ TITLE:=UCI configuration support for VLAN filtering rules
+ DEPENDS:= +ip-bridge +ip-full
+ PKGARCH:=all
+endef
+
+define Package/vfconfig/description
+ This package provides UCI configuration abstraction for VLAN filter rules
+ on top of Linux bridge interfaces.
+endef
+
+define Build/Compile
+endef
+
+define Build/Configure
+endef
+
+define Package/vfconfig/install
+ $(INSTALL_DIR) $(1)/etc/hotplug.d/iface
+ $(INSTALL_DATA) ./files/vfconfig.hotplug $(1)/etc/hotplug.d/iface/01-vfconfig
+
+ $(INSTALL_DIR) $(1)/lib/network
+ $(INSTALL_DATA) ./files/vfconfig.include $(1)/lib/network/vfconfig.sh
+
+ $(INSTALL_DIR) $(1)/sbin
+ $(INSTALL_BIN) ./files/vfconfig.sh $(1)/sbin/vfconfig
+endef
+
+$(eval $(call BuildPackage,vfconfig))
--- /dev/null
+#!/bin/sh
+
+. /lib/functions.sh
+. /lib/functions/network.sh
+
+bridge_names=""
+
+warn() {
+ echo "$@" >&2
+}
+
+clear_port_vlans() {
+ local port=$1
+ local self=$2
+ local vlans=$(bridge vlan show dev "$port" | sed -ne 's#^[^ ]* \+\([0-9]\+\).*$#\1#p')
+
+ local vlan
+ for vlan in $vlans; do
+ bridge vlan del vid "$vlan" dev "$port" $self
+ done
+}
+
+add_bridge() {
+ local cfg=$1
+ local brname
+
+ config_get brname "$cfg" bridge "switch0"
+
+ case " $bridge_names " in
+ *" $brname "*) return 1 ;;
+ esac
+
+ append bridge_names "$brname"
+
+ export -n "bridge=$brname"
+}
+
+validate_vid() {
+ local vid=$1
+
+ case "$vid" in
+ [1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-4][0-9][0-9][0-9])
+ if [ $vid -gt 4096 ]; then
+ return 1
+ fi
+ ;;
+ *)
+ return 1
+ ;;
+ esac
+
+ return 0
+}
+
+setup_bridge() {
+ local cfg=$1
+ local bridge
+
+ add_bridge "$cfg" || return 0
+
+ # Prevent netifd from picking up our switch bridge just yet
+ network_defer_device "$bridge"
+
+ # (Re)create switch bridge device in case it is not yet set up
+ local filtering=$(cat "/sys/class/net/$bridge/bridge/vlan_filtering" 2>/dev/null)
+ if [ ${filtering:-0} != 1 ]; then
+ ip link set "$bridge" down 2>/dev/null
+ ip link delete dev "$bridge" 2>/dev/null
+ ip link add name "$bridge" type bridge
+ echo 1 > "/sys/class/net/$bridge/bridge/vlan_filtering"
+ fi
+
+ ip link set "$bridge" up
+
+ # Unbridge DSA ports and flush any VLAN filters on them, they're added back later
+ local port
+ for port in /sys/class/net/*"/upper_${cfg}"; do
+ if [ -e "$port" ]; then
+ port=${port%/upper_*}
+ port=${port##*/}
+
+ ip link set "$port" nomaster
+
+ # Unbridging the port should already clear VLANs, but be safe
+ clear_port_vlans "$port"
+ fi
+ done
+
+ # Clear any VLANs on the switch bridge, they're added back later
+ clear_port_vlans "$bridge" self
+}
+
+setup_bridge_vlan() {
+ local cfg=$1
+ local bridge vlan ports
+
+ config_get bridge "$cfg" bridge "switch0"
+ config_get vlan "$cfg" vlan
+ config_get ports "$cfg" ports
+
+ validate_vid "$vlan" || {
+ warn "VLAN section '$cfg' specifies an invalid VLAN ID '$vlan'"
+ return 1
+ }
+
+ # Setup ports
+ local port tag pvid
+ for port in $ports; do
+ tag=untagged
+ pvid=
+
+ case "$port" in
+ *"*")
+ pvid=pvid
+ port=${port%\*}
+ ;;
+ esac
+
+ case "$port" in
+ *:u)
+ port=${port%:u}
+ ;;
+ *:t)
+ tag=tagged
+ port=${port%:t}
+ ;;
+ esac
+
+ # Add the port to the switch bridge and delete the default
+ # VLAN 1 if it is not yet joined to the bridge.
+ if [ ! -e "/sys/class/net/$port/upper_$bridge" ]; then
+ ip link set dev "$port" up
+ ip link set dev "$port" master "$bridge"
+
+ # Get rid of default VLAN 1
+ bridge vlan del vid 1 dev "$port"
+ fi
+
+ # Promote the first untagged VLAN of this port to the PVID
+ if [ "$tag" = untagged ] && ! bridge vlan show dev "$port" | grep -qi pvid; then
+ pvid=pvid
+ fi
+
+ # Add VLAN filter entry for port
+ bridge vlan add dev "$port" vid $vlan $pvid $tag
+ done
+
+ # Make the switch bridge itself handle the VLAN as well
+ bridge vlan add dev "$bridge" self vid $vlan tagged
+}
+
+apply_config() {
+ config_load network
+ config_foreach setup_bridge vlan_filter
+ config_foreach setup_bridge_vlan vlan_filter
+
+ # Ready switch bridge devices
+ local bridge
+ for bridge in $bridge_names; do
+ network_ready_device "$bridge"
+ done
+}
+
+show_bridge() {
+ local cfg=$1
+ local bridge
+
+ add_bridge "$cfg" || return 0
+
+ printf "Bridge: %s\n" "$bridge"
+ printf "VLAN/"
+
+ local port ports
+ for port in "/sys/class/net/$bridge/lower_"*; do
+ [ -e "$port" ] || continue
+
+ port=${port##*/lower_}
+
+ printf " | %-5s" "$port"
+ append ports "$port"
+ done
+
+ printf " |\nLink:"
+
+ for port in $ports; do
+ local carrier=$(cat "/sys/class/net/$port/carrier")
+ local duplex=$(cat "/sys/class/net/$port/duplex")
+ local speed=$(cat "/sys/class/net/$port/speed")
+
+ if [ ${carrier:-0} -eq 0 ]; then
+ printf " | %-5s" "down"
+ else
+ [ "$duplex" = "full" ] && duplex=F || duplex=H
+ printf " | %4d%s" "$speed" "$duplex"
+ fi
+ done
+
+ local vlans=$(bridge vlan show dev "$bridge" | sed -ne 's#^[^ ]* \+\([0-9]\+\).*$#\1#p')
+ local vlan
+ for vlan in $vlans; do
+ printf " |\n%4d " "$vlan"
+
+ for port in $ports; do
+ local pvid="" utag="" word
+ for word in $(bridge vlan show dev "$port" vid "$vlan"); do
+ case "$word" in
+ PVID) pvid="*" ;;
+ "$vlan") utag="t" ;;
+ Untagged) utag="u" ;;
+ esac
+ done
+
+ printf " | %-2s " "$utag$pvid"
+ done
+ done
+
+ printf " |\n\n"
+}
+
+show_config() {
+ config_load network
+ config_foreach show_bridge vlan_filter
+}
+
+
+case "$1" in
+ show) show_config ;;
+ apply) apply_config ;;
+ *)
+ echo "Usage: ${0##*/} show"
+ echo " ${0##*/} apply"
+ exit 1
+ ;;
+esac
projects / openwrt / staging / mkresin.git / commitdiff