From 5efa470b89104d06a4a54359f81ae6700ce5df51 Mon Sep 17 00:00:00 2001 From: Viacheslav Date: Thu, 5 Aug 2021 18:56:55 +0000 Subject: bgp: T548: Migrate maximum-paths to afi ipv4 maximum-paths --- src/migration-scripts/quagga/7-to-8 | 61 +++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100755 src/migration-scripts/quagga/7-to-8 (limited to 'src/migration-scripts/quagga/7-to-8') diff --git a/src/migration-scripts/quagga/7-to-8 b/src/migration-scripts/quagga/7-to-8 new file mode 100755 index 000000000..a53614718 --- /dev/null +++ b/src/migration-scripts/quagga/7-to-8 @@ -0,0 +1,61 @@ +#!/usr/bin/env python3 +# +# Copyright (C) 2021 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 . + +# - T548, Migrate "bgp xxx maximum-paths ebgp/ibgp xxx" to +# "bgp xxx address-family ipv4-unicast maximum-paths ebgp/ibgp xxx" + +import sys +from vyos.configtree import ConfigTree + +if (len(sys.argv) < 2): + print("Must specify file name!") + sys.exit(1) + +file_name = sys.argv[1] + +with open(file_name, 'r') as f: + config_file = f.read() + +base = ['protocols', 'bgp'] +config = ConfigTree(config_file) + +if not config.exists(base): + # Nothing to do + sys.exit(0) + +# Check if BGP is actually configured and obtain the ASN +asn_list = config.list_nodes(base) +if asn_list: + # There's always just one BGP node, if any + bgp_base = base + [asn_list[0]] + + # Check if "bgp xxx maximum-paths" exists, migrate to "bgp xxx address-family ipv4-unicast maximum-paths" + max_path = bgp_base + ['maximum-paths'] + if config.exists(max_path): + if config.exists(max_path + ['ebgp']): + max_ebgp = config.return_value(max_path + ['ebgp']) + config.set(bgp_base + ['address-family', 'ipv4-unicast', 'maximum-paths', 'ebgp'], max_ebgp) + if config.exists(max_path + ['ibgp']): + max_ibgp = config.return_value(max_path + ['ibgp']) + config.set(bgp_base + ['address-family', 'ipv4-unicast', 'maximum-paths', 'ibgp'], max_ibgp ) + config.delete(max_path) + +try: + with open(file_name, 'w') as f: + f.write(config.to_string()) +except OSError as e: + print("Failed to save the modified config: {}".format(e)) + sys.exit(1) -- cgit v1.2.3