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#!/bin/sh
# Copyright (c) 2012 OpenWrt.org
. /lib/ipv6/support.sh
. /lib/netifd/netifd-proto.sh
local device="$1"
local state="$2"
local network=""
resolve_network network "$device"
# Unknown network
[ -z "$network" ] && exit 0
if [ "$state" == "started" ]; then
# Start border
set_forward_border "$network" "$device" enable
# Configure device
conf_set "$device" accept_ra 2
conf_set "$device" forwarding 2
# Send RS on interface
[ -x /usr/sbin/6relayd ] && /usr/sbin/6relayd -s "$device"
exit 0
elif [ "$state" == "stopped" ]; then
# Deconfigure device
conf_set "$device" accept_ra 1
conf_set "$device" forwarding 1
# Disable border
set_forward_border "$network" "$device" disable
exit 0
fi
# Announce prefixes
for prefix in $PREFIXES; do
announce_prefix "$prefix" "$network" "$device"
done
for prefix in $PREFIXES_LOST; do
announce_prefix "$prefix" "$network" "$device" delprefix
done
# Enable relaying if requested and we didn't get a prefix, disable otherwise
local fallback="stop"
[ -z "$PREFIXES" -a "$state" != "unbound" ] && fallback="start"
setup_prefix_fallback "$fallback" "$network" "$device"
# Operations in case of success
[ "$state" == "timeout" -o "$state" == "unbound" ] && exit 0
# Handshake completed, disable forwarding border
set_forward_border "$network" "$device" disable
local peerdns
config_get_bool peerdns "$network" peerdns 1
[ "$peerdns" -eq "1" ] && {
proto_init_update "*" 1
proto_set_keep 1
for server in $RDNSS; do
proto_add_dns_server "$server"
done
for domain in $DOMAINS; do
proto_add_dns_search "$domain"
done
proto_send_update "$network"
}
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