Jo-Philipp Wich
3 years ago
parent
96b87196b0
commit
34553e8cc9
@ -0,0 +1,40 @@
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include $(TOPDIR)/rules.mk
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PKG_NAME:=vfconfig
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PKG_RELEASE:=1
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PKG_LICENSE:=GPL-2.0
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include $(INCLUDE_DIR)/package.mk
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define Package/vfconfig
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SECTION:=net
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CATEGORY:=Network
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MAINTAINER:=Jo-Philipp Wich <jo@mein.io>
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TITLE:=UCI configuration support for VLAN filtering rules
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DEPENDS:= +ip-bridge +ip-full
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PKGARCH:=all
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endef
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define Package/vfconfig/description
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This package provides UCI configuration abstraction for VLAN filter rules
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on top of Linux bridge interfaces.
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endef
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define Build/Compile
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endef
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define Build/Configure
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endef
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define Package/vfconfig/install
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$(INSTALL_DIR) $(1)/etc/hotplug.d/iface
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$(INSTALL_DATA) ./files/vfconfig.hotplug $(1)/etc/hotplug.d/iface/01-vfconfig
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$(INSTALL_DIR) $(1)/lib/network
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$(INSTALL_DATA) ./files/vfconfig.include $(1)/lib/network/vfconfig.sh
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$(INSTALL_DIR) $(1)/sbin
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$(INSTALL_BIN) ./files/vfconfig.sh $(1)/sbin/vfconfig
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endef
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$(eval $(call BuildPackage,vfconfig))
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@ -0,0 +1,7 @@
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#!/bin/sh
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if [ "$ACTION" = ifup ] && [ "$INTERFACE" = loopback ]; then
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. /lib/network/dsaconfig.sh
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setup_switch
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fi
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@ -0,0 +1,11 @@
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#!/bin/sh
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setup_switch() {
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# Skip switch setup on network restart. The netifd process
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# will be started afterwards and remove all interfaces again...
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if [ "$initscript" = /etc/init.d/network ] && [ "$action" = restart ]; then
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return 0
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fi
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/sbin/dsaconfig apply 2>&1 | logger -t dsaconfig
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}
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@ -0,0 +1,234 @@
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#!/bin/sh
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. /lib/functions.sh
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. /lib/functions/network.sh
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bridge_names=""
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warn() {
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echo "$@" >&2
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}
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clear_port_vlans() {
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local port=$1
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local self=$2
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local vlans=$(bridge vlan show dev "$port" | sed -ne 's#^[^ ]* \+\([0-9]\+\).*$#\1#p')
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local vlan
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for vlan in $vlans; do
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bridge vlan del vid "$vlan" dev "$port" $self
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done
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}
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add_bridge() {
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local cfg=$1
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local brname
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config_get brname "$cfg" bridge "switch0"
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case " $bridge_names " in
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*" $brname "*) return 1 ;;
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esac
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append bridge_names "$brname"
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export -n "bridge=$brname"
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}
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validate_vid() {
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local vid=$1
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case "$vid" in
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[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-4][0-9][0-9][0-9])
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if [ $vid -gt 4096 ]; then
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return 1
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fi
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;;
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*)
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return 1
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;;
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esac
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return 0
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}
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setup_bridge() {
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local cfg=$1
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local bridge
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add_bridge "$cfg" || return 0
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# Prevent netifd from picking up our switch bridge just yet
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network_defer_device "$bridge"
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# (Re)create switch bridge device in case it is not yet set up
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local filtering=$(cat "/sys/class/net/$bridge/bridge/vlan_filtering" 2>/dev/null)
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if [ ${filtering:-0} != 1 ]; then
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ip link set "$bridge" down 2>/dev/null
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ip link delete dev "$bridge" 2>/dev/null
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ip link add name "$bridge" type bridge
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echo 1 > "/sys/class/net/$bridge/bridge/vlan_filtering"
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fi
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ip link set "$bridge" up
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# Unbridge DSA ports and flush any VLAN filters on them, they're added back later
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local port
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for port in /sys/class/net/*"/upper_${cfg}"; do
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if [ -e "$port" ]; then
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port=${port%/upper_*}
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port=${port##*/}
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ip link set "$port" nomaster
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# Unbridging the port should already clear VLANs, but be safe
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clear_port_vlans "$port"
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fi
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done
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# Clear any VLANs on the switch bridge, they're added back later
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clear_port_vlans "$bridge" self
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}
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setup_bridge_vlan() {
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local cfg=$1
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local bridge vlan ports
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config_get bridge "$cfg" bridge "switch0"
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config_get vlan "$cfg" vlan
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config_get ports "$cfg" ports
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validate_vid "$vlan" || {
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warn "VLAN section '$cfg' specifies an invalid VLAN ID '$vlan'"
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return 1
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}
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# Setup ports
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local port tag pvid
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for port in $ports; do
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tag=untagged
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pvid=
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case "$port" in
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*"*")
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pvid=pvid
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port=${port%\*}
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;;
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esac
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case "$port" in
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*:u)
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port=${port%:u}
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;;
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*:t)
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tag=tagged
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port=${port%:t}
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;;
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esac
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# Add the port to the switch bridge and delete the default
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# VLAN 1 if it is not yet joined to the bridge.
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if [ ! -e "/sys/class/net/$port/upper_$bridge" ]; then
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ip link set dev "$port" up
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ip link set dev "$port" master "$bridge"
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# Get rid of default VLAN 1
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bridge vlan del vid 1 dev "$port"
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fi
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# Promote the first untagged VLAN of this port to the PVID
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if [ "$tag" = untagged ] && ! bridge vlan show dev "$port" | grep -qi pvid; then
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pvid=pvid
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fi
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# Add VLAN filter entry for port
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bridge vlan add dev "$port" vid $vlan $pvid $tag
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done
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# Make the switch bridge itself handle the VLAN as well
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bridge vlan add dev "$bridge" self vid $vlan tagged
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}
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apply_config() {
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config_load network
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config_foreach setup_bridge vlan_filter
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config_foreach setup_bridge_vlan vlan_filter
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# Ready switch bridge devices
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local bridge
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for bridge in $bridge_names; do
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network_ready_device "$bridge"
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done
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}
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show_bridge() {
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local cfg=$1
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local bridge
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add_bridge "$cfg" || return 0
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printf "Bridge: %s\n" "$bridge"
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printf "VLAN/"
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local port ports
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for port in "/sys/class/net/$bridge/lower_"*; do
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[ -e "$port" ] || continue
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port=${port##*/lower_}
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printf " | %-5s" "$port"
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append ports "$port"
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done
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printf " |\nLink:"
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for port in $ports; do
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local carrier=$(cat "/sys/class/net/$port/carrier")
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local duplex=$(cat "/sys/class/net/$port/duplex")
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local speed=$(cat "/sys/class/net/$port/speed")
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if [ ${carrier:-0} -eq 0 ]; then
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printf " | %-5s" "down"
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else
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[ "$duplex" = "full" ] && duplex=F || duplex=H
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printf " | %4d%s" "$speed" "$duplex"
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fi
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done
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local vlans=$(bridge vlan show dev "$bridge" | sed -ne 's#^[^ ]* \+\([0-9]\+\).*$#\1#p')
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local vlan
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for vlan in $vlans; do
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printf " |\n%4d " "$vlan"
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for port in $ports; do
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local pvid="" utag="" word
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for word in $(bridge vlan show dev "$port" vid "$vlan"); do
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case "$word" in
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PVID) pvid="*" ;;
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"$vlan") utag="t" ;;
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Untagged) utag="u" ;;
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esac
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done
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printf " | %-2s " "$utag$pvid"
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done
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done
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printf " |\n\n"
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}
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show_config() {
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config_load network
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config_foreach show_bridge vlan_filter
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}
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case "$1" in
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show) show_config ;;
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apply) apply_config ;;
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*)
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echo "Usage: ${0##*/} show"
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echo " ${0##*/} apply"
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exit 1
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;;
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esac
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