Current File : //backups/router/usr/local/share/kea/scripts/pgsql/upgrade_006.1_to_006.2.sh
#!/bin/sh
# Copyright (C) 2020-2024 Internet Systems Consortium, Inc. ("ISC")
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
# Exit with error if commands exit with non-zero and if undefined variables are
# used.
set -eu
# shellcheck disable=SC2034
# SC2034: ... appears unused. Verify use (or export if used externally).
prefix="/usr/local"
# Include utilities based on location of this script. Check for sources first,
# so that the unexpected situations with weird paths fall on the default
# case of installed.
script_path=$(cd "$(dirname "${0}")" && pwd)
if test "${script_path}" = "/usr/obj/usr/ports/net/kea/work/kea-2.6.1/src/share/database/scripts/pgsql"; then
# shellcheck source=./src/bin/admin/admin-utils.sh.in
. "/usr/obj/usr/ports/net/kea/work/kea-2.6.1/src/bin/admin/admin-utils.sh"
else
# shellcheck source=./src/bin/admin/admin-utils.sh.in
. "${prefix}/share/kea/scripts/admin-utils.sh"
fi
VERSION=$(pgsql_version "$@")
if [ "$VERSION" != "6.1" ]; then
printf 'This script upgrades 6.1 to 6.2. '
printf 'Reported version is %s. Skipping upgrade.\n' "${VERSION}"
exit 0
fi
psql "$@" >/dev/null <<EOF
START TRANSACTION;
-- This line starts the schema upgrade to version 6.2.
-- Starting from this version we allow specifying multiple IP reservations
-- for the same address in certain DHCP configurations. The server may check
-- uniqueness of the IP addresses on its own. This is no longer checked at
-- the database level to facilitate the use cases when a single host may
-- get the same reserved IP address via different interfaces.
-- Replace the unique index with non-unique index so the queries for
-- hosts by IPv4 address are still efficient.
--
-- Note we have introduced a bug a while ago which causes the index to have
-- different names depending on whether the schema was created via the
-- dhcpdb_create.pgsql script or via updates. Therefore, let's make sure
-- that we drop the index regardless of its current name.
DROP INDEX IF EXISTS key_dhcp4_ipv4_address_subnet_id;
DROP INDEX IF EXISTS hosts_dhcp4_ipv4_address_subnet_id;
CREATE INDEX key_dhcp4_ipv4_address_subnet_id
ON hosts (ipv4_address ASC, dhcp4_subnet_id ASC);
-- Replace the unique index with non-unique index so the queries for
-- hosts by IPv6 address are still efficient.
ALTER TABLE ipv6_reservations DROP CONSTRAINT IF EXISTS key_dhcp6_address_prefix_len;
CREATE INDEX key_dhcp6_address_prefix_len
ON ipv6_reservations (address ASC, prefix_len ASC);
-- Update the schema version number.
UPDATE schema_version
SET version = '6', minor = '2';
-- This line concludes the schema upgrade to version 6.2.
-- Commit the script transaction.
COMMIT;
EOF
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