1 files changed, 67 insertions, 0 deletions
diff --git a/src/op_mode/show_vrf.py b/src/op_mode/show_vrf.py
new file mode 100755
index 000000000..66c33e607
--- /dev/null
+++ b/src/op_mode/show_vrf.py
@@ -0,0 +1,67 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2020 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 argparse
+import jinja2
+
+from subprocess import check_output
+from json import loads
+
+vrf_out_tmpl = """
+VRF name          state     mac address        flags                     interfaces
+--------          -----     -----------        -----                     ----------
+{%- for v in vrf %}
+{{"%-16s"|format(v.ifname)}}  {{ "%-8s"|format(v.operstate | lower())}}  {{"%-17s"|format(v.address | lower())}}  {{ v.flags|join(',')|lower()}}  {{v.members|join(',')|lower()}}
+{%- endfor %}
+
+"""
+
+def list_vrfs():
+    command = 'ip -j -br link show type vrf'
+    answer = loads(check_output(command.split()).decode())
+    return [_ for _ in answer if _]
+
+def list_vrf_members(vrf):
+    command = f'ip -j -br link show master {vrf}'
+    answer = loads(check_output(command.split()).decode())
+    return [_ for _ in answer if _]
+
+parser = argparse.ArgumentParser()
+group = parser.add_mutually_exclusive_group()
+group.add_argument("-e", "--extensive", action="store_true",
+                   help="provide detailed vrf informatio")
+parser.add_argument('interface', metavar='I', type=str, nargs='?',
+                    help='interface to display')
+
+args = parser.parse_args()
+
+if args.extensive:
+    data = { 'vrf': [] }
+    for vrf in list_vrfs():
+        name = vrf['ifname']
+        if args.interface and name != args.interface:
+            continue
+
+        vrf['members'] = []
+        for member in list_vrf_members(name):
+            vrf['members'].append(member['ifname'])
+        data['vrf'].append(vrf)
+
+    tmpl = jinja2.Template(vrf_out_tmpl)
+    print(tmpl.render(data))
+
+else:
+    print(" ".join([vrf['ifname'] for vrf in list_vrfs()]))