1 files changed, 124 insertions, 0 deletions
diff --git a/src/conf_mode/protocols_ripng.py b/src/conf_mode/protocols_ripng.py
new file mode 100644
index 0000000..23416ff
--- /dev/null
+++ b/src/conf_mode/protocols_ripng.py
@@ -0,0 +1,124 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2021-2024 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/>.
+
+from sys import exit
+
+from vyos.config import Config
+from vyos.configdict import dict_merge
+from vyos.configverify import verify_common_route_maps
+from vyos.configverify import verify_access_list
+from vyos.configverify import verify_prefix_list
+from vyos.utils.dict import dict_search
+from vyos.template import render_to_string
+from vyos import ConfigError
+from vyos import frr
+from vyos import airbag
+airbag.enable()
+
+def get_config(config=None):
+    if config:
+        conf = config
+    else:
+        conf = Config()
+    base = ['protocols', 'ripng']
+    ripng = conf.get_config_dict(base, key_mangling=('-', '_'), get_first_key=True)
+
+    # Bail out early if configuration tree does not exist
+    if not conf.exists(base):
+        return ripng
+
+    # We have gathered the dict representation of the CLI, but there are default
+    # options which we need to update into the dictionary retrived.
+    ripng = conf.merge_defaults(ripng, recursive=True)
+
+    # We also need some additional information from the config, prefix-lists
+    # and route-maps for instance. They will be used in verify().
+    #
+    # XXX: one MUST always call this without the key_mangling() option! See
+    # vyos.configverify.verify_common_route_maps() for more information.
+    tmp = conf.get_config_dict(['policy'])
+    # Merge policy dict into "regular" config dict
+    ripng = dict_merge(tmp, ripng)
+
+    return ripng
+
+def verify(ripng):
+    if not ripng:
+        return None
+
+    verify_common_route_maps(ripng)
+
+    acl_in = dict_search('distribute_list.access_list.in', ripng)
+    if acl_in: verify_access_list(acl_in, ripng, version='6')
+
+    acl_out = dict_search('distribute_list.access_list.out', ripng)
+    if acl_out: verify_access_list(acl_out, ripng, version='6')
+
+    prefix_list_in = dict_search('distribute_list.prefix_list.in', ripng)
+    if prefix_list_in: verify_prefix_list(prefix_list_in, ripng, version='6')
+
+    prefix_list_out = dict_search('distribute_list.prefix_list.out', ripng)
+    if prefix_list_out: verify_prefix_list(prefix_list_out, ripng, version='6')
+
+    if 'interface' in ripng:
+        for interface, interface_options in ripng['interface'].items():
+            if 'authentication' in interface_options:
+                if {'md5', 'plaintext_password'} <= set(interface_options['authentication']):
+                    raise ConfigError('Can not use both md5 and plaintext-password at the same time!')
+            if 'split_horizon' in interface_options:
+                if {'disable', 'poison_reverse'} <= set(interface_options['split_horizon']):
+                    raise ConfigError(f'You can not have "split-horizon poison-reverse" enabled ' \
+                                      f'with "split-horizon disable" for "{interface}"!')
+
+def generate(ripng):
+    if not ripng:
+        ripng['new_frr_config'] = ''
+        return None
+
+    ripng['new_frr_config'] = render_to_string('frr/ripngd.frr.j2', ripng)
+    return None
+
+def apply(ripng):
+    ripng_daemon = 'ripngd'
+    zebra_daemon = 'zebra'
+
+    # Save original configuration prior to starting any commit actions
+    frr_cfg = frr.FRRConfig()
+
+    # The route-map used for the FIB (zebra) is part of the zebra daemon
+    frr_cfg.load_configuration(zebra_daemon)
+    frr_cfg.modify_section('^ipv6 protocol ripng route-map [-a-zA-Z0-9.]+', stop_pattern='(\s|!)')
+    frr_cfg.commit_configuration(zebra_daemon)
+
+    frr_cfg.load_configuration(ripng_daemon)
+    frr_cfg.modify_section('key chain \S+', stop_pattern='^exit', remove_stop_mark=True)
+    frr_cfg.modify_section('interface \S+', stop_pattern='^exit', remove_stop_mark=True)
+    frr_cfg.modify_section('^router ripng', stop_pattern='^exit', remove_stop_mark=True)
+    if 'new_frr_config' in ripng:
+        frr_cfg.add_before(frr.default_add_before, ripng['new_frr_config'])
+    frr_cfg.commit_configuration(ripng_daemon)
+
+    return None
+
+if __name__ == '__main__':
+    try:
+        c = get_config()
+        verify(c)
+        generate(c)
+        apply(c)
+    except ConfigError as e:
+        print(e)
+        exit(1)