From 657f5c1a08351c7740ff74cc112321d8f4e2155c Mon Sep 17 00:00:00 2001
From: Viacheslav Hletenko <v.gletenko@vyos.io>
Date: Fri, 31 Mar 2023 13:09:21 +0000
Subject: T5125: Add op-mode for sFlow based on hsflowd
Add op-mode for sFlow based on hsflowd "show sflow"
Add machine readable format '--raw' and formatted output
---
src/op_mode/sflow.py | 102 +++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 102 insertions(+)
create mode 100755 src/op_mode/sflow.py
(limited to 'src/op_mode')
diff --git a/src/op_mode/sflow.py b/src/op_mode/sflow.py
new file mode 100755
index 000000000..1ff006274
--- /dev/null
+++ b/src/op_mode/sflow.py
@@ -0,0 +1,102 @@
+#!/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 dbus
+import sys
+
+from tabulate import tabulate
+
+from vyos.configquery import ConfigTreeQuery
+from vyos.util import cmd
+
+import vyos.opmode
+
+
+def _get_raw_sflow():
+ bus = dbus.SystemBus()
+ config = ConfigTreeQuery()
+
+ interfaces = config.values('system sflow interface')
+ servers = config.list_nodes('system sflow server')
+
+ sflow = bus.get_object('net.sflow.hsflowd', '/net/sflow/hsflowd')
+ sflow_telemetry = dbus.Interface(
+ sflow, dbus_interface='net.sflow.hsflowd.telemetry')
+ agent_address = sflow_telemetry.GetAgent()
+ samples_dropped = int(sflow_telemetry.Get('dropped_samples'))
+ samples_packet_sent = int(sflow_telemetry.Get('flow_samples'))
+ samples_counter_sent = int(sflow_telemetry.Get('counter_samples'))
+ datagrams_sent = int(sflow_telemetry.Get('datagrams'))
+ rtmetric_samples = int(sflow_telemetry.Get('rtmetric_samples'))
+ samples_suppressed = int(sflow_telemetry.Get('flow_samples_suppressed'))
+ counter_samples_suppressed = int(
+ sflow_telemetry.Get("counter_samples_suppressed"))
+ version = sflow_telemetry.GetVersion()
+
+ sflow_dict = {
+ 'agent_address': agent_address,
+ 'sflow_interfaces': interfaces,
+ 'sflow_servers': servers,
+ 'counter_samples_sent': samples_counter_sent,
+ 'datagrams_sent': datagrams_sent,
+ 'packet_samples_dropped': samples_dropped,
+ 'packet_samples_sent': samples_packet_sent,
+ 'rtmetric_samples': rtmetric_samples,
+ 'flow_samples_suppressed': samples_suppressed,
+ 'counter_samples_suppressed': counter_samples_suppressed,
+ 'hsflowd_version': version
+ }
+ return sflow_dict
+
+
+def _get_formatted_sflow(data):
+ table = [
+ ['Agent address', f'{data.get("agent_address")}'],
+ ['sFlow interfaces', f'{data.get("sflow_interfaces", "n/a")}'],
+ ['sFlow servers', f'{data.get("sflow_servers", "n/a")}'],
+ ['Datagrams sent', f'{data.get("datagrams_sent")}'],
+ ['Packet samples sent', f'{data.get("packet_samples_sent")}'],
+ ['Packet samples dropped', f'{data.get("packet_samples_dropped")}'],
+ ['Counter samples sent', f'{data.get("counter_samples_sent")}'],
+ ['Flow samples suppressed', f'{data.get("flow_samples_suppressed")}'],
+ ['Counter samples suppressed', f'{data.get("counter_samples_suppressed")}']
+ ]
+
+ return tabulate(table)
+
+
+def show(raw: bool):
+
+ config = ConfigTreeQuery()
+ if not config.exists('system sflow'):
+ raise vyos.opmode.UnconfiguredSubsystem(
+ '"system sflow" is not configured!')
+
+ sflow_data = _get_raw_sflow()
+ if raw:
+ return sflow_data
+ else:
+ return _get_formatted_sflow(sflow_data)
+
+
+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)
--
cgit v1.2.3