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authorViacheslav Hletenko <v.gletenko@vyos.io>2023-09-10 22:24:27 +0000
committerViacheslav Hletenko <v.gletenko@vyos.io>2023-11-01 15:47:47 +0000
commitc56af995b6e3d867c2a67deeb4be79e498f0a7cf (patch)
tree91ac8bbdef29fc68c69f932941eb8446c06a06c9 /src/conf_mode/protocols_static_neighbor-proxy.py
parentd46124c5073edf5b92f0814ef8dfaba648ce8ea6 (diff)
downloadvyos-1x-c56af995b6e3d867c2a67deeb4be79e498f0a7cf.tar.gz
vyos-1x-c56af995b6e3d867c2a67deeb4be79e498f0a7cf.zip
T5559: Add static neighbor-proxy feature
Ability to set ip neigbhor proxy set protocols static neighbor-proxy arp 192.0.2.1 interface 'eth0' set protocols static neighbor-proxy arp 192.0.2.2 interface 'eth0' set protocols static neighbor-proxy nd 2001:db8::1 interface 'eth1'
Diffstat (limited to 'src/conf_mode/protocols_static_neighbor-proxy.py')
-rwxr-xr-xsrc/conf_mode/protocols_static_neighbor-proxy.py95
1 files changed, 95 insertions, 0 deletions
diff --git a/src/conf_mode/protocols_static_neighbor-proxy.py b/src/conf_mode/protocols_static_neighbor-proxy.py
new file mode 100755
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+++ b/src/conf_mode/protocols_static_neighbor-proxy.py
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+#!/usr/bin/env python3
+#
+# Copyright (C) 2023 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 node_changed
+from vyos.utils.process import call
+from vyos import ConfigError
+from vyos import airbag
+
+airbag.enable()
+
+
+def get_config(config=None):
+ if config:
+ conf = config
+ else:
+ conf = Config()
+
+ base = ['protocols', 'static', 'neighbor-proxy']
+ config = conf.get_config_dict(base, get_first_key=True)
+
+ return config
+
+
+def verify(config):
+
+ if 'arp' in config:
+ for neighbor, neighbor_conf in config['arp'].items():
+ if 'interface' not in neighbor_conf:
+ raise ConfigError(
+ f"ARP neighbor-proxy for '{neighbor}' requires an interface to be set!"
+ )
+
+ if 'nd' in config:
+ for neighbor, neighbor_conf in config['nd'].items():
+ if 'interface' not in neighbor_conf:
+ raise ConfigError(
+ f"ARP neighbor-proxy for '{neighbor}' requires an interface to be set!"
+ )
+
+
+def generate(config):
+ pass
+
+
+def apply(config):
+ if not config:
+ # Cleanup proxy
+ call('ip neighbor flush proxy')
+ call('ip -6 neighbor flush proxy')
+ return None
+
+ # Add proxy ARP
+ if 'arp' in config:
+ # Cleanup entries before config
+ call('ip neighbor flush proxy')
+ for neighbor, neighbor_conf in config['arp'].items():
+ for interface in neighbor_conf.get('interface'):
+ call(f'ip neighbor add proxy {neighbor} dev {interface}')
+
+ # Add proxy NDP
+ if 'nd' in config:
+ # Cleanup entries before config
+ call('ip -6 neighbor flush proxy')
+ for neighbor, neighbor_conf in config['nd'].items():
+ for interface in neighbor_conf['interface']:
+ call(f'ip -6 neighbor add proxy {neighbor} dev {interface}')
+
+
+if __name__ == '__main__':
+ try:
+ c = get_config()
+ verify(c)
+ generate(c)
+ apply(c)
+ except ConfigError as e:
+ print(e)
+ exit(1)