T6335: Add/Update EVPN op commands

Added the following commands:
show evpn
show evpn es
show evpn es <es-id>
show evpn es detail
show evpn es-evi
show evpn es-evi detail
show evpn es-evi vni <num>
show evpn vni
show evpn vni detail
show evpn vni <num>

Updated the following commands:
show evpn access-vlan
show evpn arp-cache
show evpn mac
show evpn next-hops
show evpn rmac

(cherry picked from commit c6be441c86bc8fe2e938e2bd3c85f99071cbfb49)

3 files changed, 104 insertions, 0 deletions

diff --git a/src/completion/list_esi.py b/src/completion/list_esi.py
new file mode 100644
index 000000000..fc40f37b6
--- /dev/null
+++ b/src/completion/list_esi.py
@@ -0,0 +1,31 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2016-2024 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/>.
+#
+# This script is completion helper to list all configured VNIs that are visible to FRR
+
+import json
+from vyos.utils.process import cmd
+
+def get_esi():
+    esiDict = json.loads(cmd(f"vtysh -c 'show evpn es json'"))
+    esiList = []
+    for i in esiDict:
+        esiList.append(i['esi'])
+
+    print(' '.join(esiList))
+
+if __name__ == '__main__':
+    get_esi()
diff --git a/src/completion/list_vni.py b/src/completion/list_vni.py
new file mode 100644
index 000000000..ef78eb16f
--- /dev/null
+++ b/src/completion/list_vni.py
@@ -0,0 +1,27 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2016-2024 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/>.
+#
+# This script is completion helper to list all configured VNIs that are visible to FRR
+
+import json
+from vyos.utils.process import cmd
+
+def get_vni():
+    vniDict = json.loads(cmd(f"vtysh -c 'show evpn vni json'"))
+    print(' '.join(vniDict.keys()))
+
+if __name__ == '__main__':
+    get_vni()
diff --git a/src/op_mode/evpn.py b/src/op_mode/evpn.py
new file mode 100644
index 000000000..cae4ab9f5
--- /dev/null
+++ b/src/op_mode/evpn.py
@@ -0,0 +1,46 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2016-2024 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/>.
+#
+# This script is a helper to run VTYSH commands for "show evpn", allowing for the --raw flag to output JSON
+
+import sys
+import typing
+import json
+
+import vyos.opmode
+from vyos.utils.process import cmd
+
+def show_evpn(raw: bool, command: typing.Optional[str]):
+    if raw:
+        command = f"{command} json"
+        evpnDict = {}
+        try:
+            evpnDict['evpn'] = json.loads(cmd(f"vtysh -c '{command}'"))
+        except:
+            raise vyos.opmode.DataUnavailable(f"\"{command.replace(' json', '')}\" is invalid or has no JSON option")
+
+        return evpnDict
+    else:
+        return cmd(f"vtysh -c '{command}'")
+
+if __name__ == '__main__':
+    try:
+        res = vyos.opmode.run(sys.modules[__name__])
+        if res:
+            print(res)
+    except (ValueError, vyos.opmode.Error) as e:
+        print(e)
+        sys.exit(1)