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git://projects.qi-hardware.com/openwrt-xburst.git
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ipv6-support: Second Iteration
* mode 'downstream' renamed to 'router' * mode 'upstream' renamed to 'dhcpv6' * mode 'relay' added * cleanups and minor bugfixes in state handling git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34466 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
cyrus
parent
510d695acf
commit
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@ -8,7 +8,7 @@
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include $(TOPDIR)/rules.mk
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PKG_NAME:=ipv6-support
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PKG_VERSION:=2012-11-29
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PKG_VERSION:=2012-12-03
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PKG_RELEASE:=1
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include $(INCLUDE_DIR)/package.mk
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@ -27,11 +27,11 @@ done
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local prefix_fallback
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config_get prefix_fallback "$network" prefix_fallback
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[ "$prefix_fallback" == "relay" -a -z "$PREFIXES" -a "$state" != "unbound" ] &&
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restart_relay "$network" 1
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restart_relay "$network" "fallback"
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# Disable relay if requested
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[ "$prefix_fallback" != "relay" -o -n "$PREFIXES" -o "$state" == "unbound" ] &&
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stop_relay "$network"
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restart_relay "$network"
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# Operations in case of success
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@ -3,16 +3,11 @@
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[ "$DEVICE" == "lo" ] && exit 0
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. /lib/ipv6/support.sh
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local mode
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config_get mode "$INTERFACE" mode
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case "$ACTION" in
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ifup)
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[ "$mode" != "downstream" ] && enable_static $INTERFACE $DEVICE
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[ "$mode" == "upstream" ] && enable_upstream $INTERFACE $DEVICE
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[ "$mode" == "downstream" ] && enable_downstream $INTERFACE $DEVICE
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enable_interface "$INTERFACE" "$DEVICE"
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;;
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ifdown)
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disable_interface $INTERFACE $DEVICE
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disable_interface "$INTERFACE" "$DEVICE"
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;;
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esac
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@ -1,5 +1,5 @@
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config interface wan
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option mode upstream
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option mode dhcpv6
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option ula_prefix auto
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option request_prefix auto
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option prefix_fallback relay
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@ -7,7 +7,7 @@ config interface wan
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config interface lan
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option mode downstream
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option mode router
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option advertise_prefix 64
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option relay_master wan
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@ -15,3 +15,4 @@ config interface lan
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config interface 6in4
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option mode static
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list static_prefix 2001:DB8::/48
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@ -93,42 +93,66 @@ announce_prefix() {
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}
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disable_downstream() {
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disable_router() {
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local network="$1"
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# Notify the address distribution daemon
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ubus call 6distributed deliface '{"network": "'"$network"'"}'
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# Disable advertisement daemon
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stop_service /usr/sbin/6relayd "/var/run/ipv6-downstream-$network.pid"
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stop_service /usr/sbin/6relayd "/var/run/ipv6-router-$network.pid"
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}
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restart_relay_add() {
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restart_relay_slave() {
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local __section="$1"
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local __return="$2"
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local __master="$3"
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local __disable="$4"
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local __master="$2"
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network_is_up "$__section" || return
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# Match master network
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local __cmaster=""
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config_get __cmaster "$__section" relay_master
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[ "$__master" != "$__cmaster" ] && return
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# Disable any active distribution
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disable_downstream "$__section"
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local __device=""
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network_get_device __device "$__section"
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# Coming from stop relay, reenable distribution
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[ "$__disable" == "disable" ] && {
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enable_downstream "$__section" "$__device"
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return
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}
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local __cmaster=""
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config_get __cmaster "$__section" relay_master
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[ "$__master" == "$__cmaster" ] && {
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disable_interface "$__section"
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enable_interface "$__section" "$__device"
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}
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}
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add_relay_slave() {
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local __section="$1"
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local __return="$2"
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local __master="$3"
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local __mode="$4"
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network_is_up "$__section" || return
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# Get device
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local __device=""
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network_get_device __device "$__section"
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# Match master network
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local __cmaster=""
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config_get __cmaster "$__section" relay_master
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[ "$__master" == "$__cmaster" ] || return
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# Test slave mode
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local __cmode=""
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config_get __cmode "$__section" mode
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[ "$__cmode" == "downstream" ] && __cmode="router"
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# Don't start fallback interfaces if we are in forced-relay mode
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[ "$__cmode" == "relay" -o "$__mode" == "fallback" ] || return
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# Don't make non-relay or non-router interfaces slaves
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[ "$__cmode" == "relay" -o "$__cmode" == "router" ] || return
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# Disable any active distribution
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[ "$__cmode" == "router" ] && disable_router "$__section"
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eval "$__return"'="$'"$__return"' '"$__device"'"'
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}
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@ -136,50 +160,76 @@ restart_relay_add() {
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stop_relay() {
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local network="$1"
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local pid="/var/run/ipv6-relay-$network.pid"
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local was_running=""
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local pid_fallback="/var/run/ipv6-relay-fallback-$network.pid"
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local pid_forced="/var/run/ipv6-relay-forced-$network.pid"
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local was_fallback=""
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stop_service /usr/sbin/6relayd "$pid" was_running
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stop_service /usr/sbin/6relayd "$pid_fallback" was_fallback
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stop_service /usr/sbin/6relayd "$pid_forced"
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# Reenable normal distribution on slave interfaces
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[ -n "$was_running" ] && config_foreach restart_relay_add interface dummy "$network" disable
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[ -n "$was_fallback" ] && config_foreach restart_relay_slave interface "$network"
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}
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detect_forced_relay_mode() {
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local __section="$1"
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local __mode="$2"
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local __cmode
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config_get __cmode "$__section" mode
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[ "$__cmode" == "relay" ] && eval "$__mode=forced"
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}
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restart_relay() {
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local network="$1"
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local force="$2"
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local pid="/var/run/ipv6-relay-$network.pid"
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local mode="$2"
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local not_running=0
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[ -f "$pid" ] || not_running=1
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# Don't start if not desired
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[ "$force" != "1" ] && [ "$not_running" == "1" ] && return
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# Kill current relay and distribution daemon
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# Stop last active relay
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stop_relay "$network"
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# Detect if we have a forced-relay
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[ -z "$mode" ] && config_foreach detect_forced_relay_mode interface mode
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# Don't start without a mode
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[ -z "$mode" ] && return
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# Detect master device
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local device=""
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network_get_device device $network
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network_get_device device "$network"
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# Generate command string
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local cmd="/usr/sbin/6relayd -A $device "
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config_foreach restart_relay_add interface cmd "$network"
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local cmd="/usr/sbin/6relayd -A $device"
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local ifaces=""
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config_foreach add_relay_slave interface ifaces "$network" "$mode"
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# Start relay
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start_service "$cmd" "$pid"
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local pid="/var/run/ipv6-relay-$mode-$network.pid"
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[ -n "$ifaces" ] && start_service "$cmd $ifaces" "$pid"
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# There are no slave interface, however indicate that we want to relay
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[ -z "$ifaces" ] && touch "$pid"
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}
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restart_master_relay() {
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local network="$1"
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local mode="$2"
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local pid_fallback="/var/run/ipv6-relay-fallback-$network.pid"
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local pid_forced="/var/run/ipv6-relay-forced-$network.pid"
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# Disable active relaying to this interface
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local relay_master
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config_get relay_master "$network" relay_master
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[ -n "$relay_master" ] && restart_relay "$relay_master"
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[ -z "$relay_master" ] && return
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network_is_up "$relay_master" || return
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# Detect running mode
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[ -z "$mode" && -f "$pid_fallback" ] && mode="fallback"
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[ -z "$mode" && -f "$pid_forced" ] && mode="forced"
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# Restart relay if running or start requested
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[ -n "$mode" ] && restart_relay "$relay_master" "$mode"
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}
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@ -193,13 +243,13 @@ disable_interface() {
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restart_master_relay "$network"
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# Disable distribution
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disable_downstream "$network"
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disable_router "$network"
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# Disable relay
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stop_relay "$network"
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# Disable DHCPv6 client if enabled, state script will take care
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stop_service /usr/sbin/odhcp6c "/var/run/ipv6-upstream-$network.pid"
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stop_service /usr/sbin/odhcp6c "/var/run/ipv6-dhcpv6-$network.pid"
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}
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@ -245,10 +295,13 @@ enable_static() {
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# Announce all static prefixes
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config_list_foreach "$network" static_prefix announce_prefix $network
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# start relay if there are forced relay members
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restart_relay "$network"
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}
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enable_downstream() {
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enable_router() {
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local network="$1"
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local device="$2"
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@ -259,7 +312,7 @@ enable_downstream() {
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[ "$length" -ne "0" ] && ubus call 6distributed newiface '{"network": "'"$network"'", "iface": "'"$device"'", "length": '"$length"'}'
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# Start RD & DHCPv6 service
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local pid="/var/run/ipv6-downstream-$network.pid"
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local pid="/var/run/ipv6-router-$network.pid"
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start_service "/usr/sbin/6relayd -Rserver -Dserver . $device" "$pid"
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# Try relaying if necessary
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@ -267,7 +320,7 @@ enable_downstream() {
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}
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enable_upstream() {
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enable_dhcpv6() {
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local network="$1"
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local device="$2"
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@ -292,13 +345,30 @@ enable_upstream() {
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}
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# Start DHCPv6 client
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local pid="/var/run/ipv6-upstream-$network.pid"
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local pid="/var/run/ipv6-dhcpv6-$network.pid"
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start_service "/usr/sbin/odhcp6c -s/lib/ipv6/dhcpv6.sh $dhcp6_opts" "$pid"
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# Refresh RA on all interfaces
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for pid in /var/run/ipv6-downstream-*.pid; do
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for pid in /var/run/ipv6-router-*.pid; do
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kill -SIGUSR1 $(cat "$pid")
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done
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}
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enable_interface()
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{
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local network="$1"
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local device="$2"
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local mode=""
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config_get mode "$network" mode
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# Compatibility with old mode names
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[ "$mode" == "downstream" ] && mode=router
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[ "$mode" == "upstream" ] && mode=dhcpv6
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# Run mode startup code
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[ "$mode" == "dhcpv6" -o "$mode" == "static" ] && enable_static "$network" "$device"
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[ "$mode" == "dhcpv6" ] && enable_dhcpv6 "$network" "$device"
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[ "$mode" == "router" ] && enable_router "$network" "$device"
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[ "$mode" == "relay" ] && restart_master_relay "$network" forced
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}
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