From a950059053f7394acfb453cc0d8194aa3dc721fa Mon Sep 17 00:00:00 2001
From: kumvijaya <kuvmijaya@gmail.com>
Date: Thu, 26 Sep 2024 11:31:07 +0530
Subject: T6732: added same as vyos 1x

---
 src/conf_mode/protocols_eigrp.py | 119 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 119 insertions(+)
 create mode 100644 src/conf_mode/protocols_eigrp.py

(limited to 'src/conf_mode/protocols_eigrp.py')

diff --git a/src/conf_mode/protocols_eigrp.py b/src/conf_mode/protocols_eigrp.py
new file mode 100644
index 0000000..c13e52a
--- /dev/null
+++ b/src/conf_mode/protocols_eigrp.py
@@ -0,0 +1,119 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2022 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 sys import argv
+
+from vyos.config import Config
+from vyos.configdict import dict_merge
+from vyos.configverify import verify_vrf
+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()
+
+    vrf = None
+    if len(argv) > 1:
+        vrf = argv[1]
+
+    base_path = ['protocols', 'eigrp']
+
+    # eqivalent of the C foo ? 'a' : 'b' statement
+    base = vrf and ['vrf', 'name', vrf, 'protocols', 'eigrp'] or base_path
+    eigrp = conf.get_config_dict(base, key_mangling=('-', '_'),
+                               get_first_key=True, no_tag_node_value_mangle=True)
+
+    # Assign the name of our VRF context. This MUST be done before the return
+    # statement below, else on deletion we will delete the default instance
+    # instead of the VRF instance.
+    if vrf: eigrp.update({'vrf' : vrf})
+
+    if not conf.exists(base):
+        eigrp.update({'deleted' : ''})
+        if not vrf:
+            # We are running in the default VRF context, thus we can not delete
+            # our main EIGRP instance if there are dependent EIGRP VRF instances.
+            eigrp['dependent_vrfs'] = conf.get_config_dict(['vrf', 'name'],
+                key_mangling=('-', '_'),
+                get_first_key=True,
+                no_tag_node_value_mangle=True)
+
+        return eigrp
+
+    # 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
+    eigrp = dict_merge(tmp, eigrp)
+
+    return eigrp
+
+def verify(eigrp):
+    if not eigrp or 'deleted' in eigrp:
+        return
+
+    if 'system_as' not in eigrp:
+        raise ConfigError('EIGRP system-as must be defined!')
+
+    if 'vrf' in eigrp:
+        verify_vrf(eigrp)
+
+def generate(eigrp):
+    if not eigrp or 'deleted' in eigrp:
+        return None
+
+    eigrp['frr_eigrpd_config']  = render_to_string('frr/eigrpd.frr.j2', eigrp)
+
+def apply(eigrp):
+    eigrp_daemon = 'eigrpd'
+
+    # Save original configuration prior to starting any commit actions
+    frr_cfg = frr.FRRConfig()
+
+    # Generate empty helper string which can be ammended to FRR commands, it
+    # will be either empty (default VRF) or contain the "vrf <name" statement
+    vrf = ''
+    if 'vrf' in eigrp:
+        vrf = ' vrf ' + eigrp['vrf']
+
+    frr_cfg.load_configuration(eigrp_daemon)
+    frr_cfg.modify_section(f'^router eigrp \d+{vrf}', stop_pattern='^exit', remove_stop_mark=True)
+    if 'frr_eigrpd_config' in eigrp:
+        frr_cfg.add_before(frr.default_add_before, eigrp['frr_eigrpd_config'])
+    frr_cfg.commit_configuration(eigrp_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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