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#!/bin/bash
#
# Copyright (C) 2024 VyOS maintainers and contributors
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 or later as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
#
if [ $# -lt 1 ]; then
echo Invalid args
logger -s -t on-dhcpv6-event "Invalid args \"$@\""
exit 1
fi
action=$1
case "$action" in
lease6_renew|lease6_recover)
exit 0
;;
lease6_release|lease6_expire|lease6_decline)
ifname=$QUERY6_IFACE_NAME
client_ip=$LEASE6_ADDRESS
client_prefix_len=$LEASE6_PREFIX_LEN
if [[ "$LEASE6_TYPE" != "IA_PD" ]]; then
exit 0
fi
sudo -n /sbin/ip -6 route del ${client_ip}/${client_prefix_len} \
dev ${ifname} \
proto static
exit 0
;;
leases6_committed)
for ((i = 0; i < $LEASES6_SIZE; i++)); do
ifname=$QUERY6_IFACE_NAME
requester_link_local=$QUERY6_REMOTE_ADDR
client_type_var="LEASES6_AT${i}_TYPE"
client_ip_var="LEASES6_AT${i}_ADDRESS"
client_prefix_len_var="LEASES6_AT${i}_PREFIX_LEN"
client_type=${!client_type_var}
if [[ "$client_type" != "IA_PD" ]]; then
continue
fi
client_ip=${!client_ip_var}
client_prefix_len=${!client_prefix_len_var}
sudo -n /sbin/ip -6 route replace ${client_ip}/${client_prefix_len} \
via ${requester_link_local} \
dev ${ifname} \
proto static
done
exit 0
;;
*)
logger -s -t on-dhcpv6-event "Invalid command \"$1\""
exit 1
;;
esac
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