From 42f91ee461589f1a407a2ceec8c63dd889f4a609 Mon Sep 17 00:00:00 2001
From: Christian Poessinger <christian@poessinger.com>
Date: Sun, 24 Jan 2021 13:14:48 +0100
Subject: ospfv3: T3244: provide full protocol support in XML and Python
This commit provides the implementation of the OSPFv3 (IPv6) CLI with a Jinja2
template that is loaded by FRR reload. It also contains some initial smoketests.
There is yet no verify() implementation!
---
src/conf_mode/protocols_ospfv3.py | 109 ++++++++++++++++++++++++++++++++++++++
1 file changed, 109 insertions(+)
create mode 100755 src/conf_mode/protocols_ospfv3.py
(limited to 'src')
diff --git a/src/conf_mode/protocols_ospfv3.py b/src/conf_mode/protocols_ospfv3.py
new file mode 100755
index 000000000..f514641ef
--- /dev/null
+++ b/src/conf_mode/protocols_ospfv3.py
@@ -0,0 +1,109 @@
+#!/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 <http://www.gnu.org/licenses/>.
+
+import os
+
+from sys import exit
+
+from vyos.config import Config
+from vyos.configdict import dict_merge
+from vyos.template import render
+from vyos.template import render_to_string
+from vyos.util import call
+from vyos.util import dict_search
+from vyos.xml import defaults
+from vyos import ConfigError
+from vyos import frr
+from vyos import airbag
+airbag.enable()
+
+config_file = r'/tmp/ospfv3.frr'
+frr_daemon = 'ospf6d'
+
+DEBUG = os.path.exists('/tmp/ospfv3.debug')
+if DEBUG:
+ import logging
+ lg = logging.getLogger("vyos.frr")
+ lg.setLevel(logging.DEBUG)
+ ch = logging.StreamHandler()
+ lg.addHandler(ch)
+
+def get_config(config=None):
+ if config:
+ conf = config
+ else:
+ conf = Config()
+ base = ['protocols', 'ospfv3']
+ ospfv3 = conf.get_config_dict(base, key_mangling=('-', '_'), get_first_key=True)
+ return ospfv3
+
+def verify(ospfv3):
+ if not ospfv3:
+ return None
+
+ return None
+
+def generate(ospfv3):
+ if not ospfv3:
+ ospfv3['new_frr_config'] = ''
+ return None
+
+ # render(config) not needed, its only for debug
+ render(config_file, 'frr/ospfv3.frr.tmpl', ospfv3)
+ ospfv3['new_frr_config'] = render_to_string('frr/ospfv3.frr.tmpl', ospfv3)
+
+ return None
+
+def apply(ospfv3):
+ # Save original configuration prior to starting any commit actions
+ frr_cfg = frr.FRRConfig()
+ frr_cfg.load_configuration(frr_daemon)
+ frr_cfg.modify_section('router ospf6', '')
+ frr_cfg.add_before(r'(ip prefix-list .*|route-map .*|line vty)', ospfv3['new_frr_config'])
+
+ # Debugging
+ if DEBUG:
+ from pprint import pprint
+ print('')
+ print('--------- DEBUGGING ----------')
+ pprint(dir(frr_cfg))
+ print('Existing config:\n')
+ for line in frr_cfg.original_config:
+ print(line)
+ print(f'Replacement config:\n')
+ print(f'{ospfv3["new_frr_config"]}')
+ print(f'Modified config:\n')
+ print(f'{frr_cfg}')
+
+ frr_cfg.commit_configuration(frr_daemon)
+
+ # If FRR config is blank, re-run the blank commit x times due to frr-reload
+ # behavior/bug not properly clearing out on one commit.
+ if ospfv3['new_frr_config'] == '':
+ for a in range(5):
+ frr_cfg.commit_configuration(frr_daemon)
+
+ return None
+
+if __name__ == '__main__':
+ try:
+ c = get_config()
+ verify(c)
+ generate(c)
+ apply(c)
+ except ConfigError as e:
+ print(e)
+ exit(1)
--
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