From f0d0a572af9663a3dbbdbf5bbe9631a30235637f Mon Sep 17 00:00:00 2001
From: jack9603301 <jack9603301@163.com>
Date: Sat, 13 Mar 2021 15:03:53 +0800
Subject: nat: nat66: T2518: Support operation mode command

---
 src/op_mode/show_nat66_statistics.py | 63 ++++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100755 src/op_mode/show_nat66_statistics.py

(limited to 'src/op_mode/show_nat66_statistics.py')

diff --git a/src/op_mode/show_nat66_statistics.py b/src/op_mode/show_nat66_statistics.py
new file mode 100755
index 000000000..0f0b05978
--- /dev/null
+++ b/src/op_mode/show_nat66_statistics.py
@@ -0,0 +1,63 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2018 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 jmespath
+import json
+
+from argparse import ArgumentParser
+from jinja2 import Template
+from sys import exit
+from vyos.util import cmd
+
+OUT_TMPL_SRC="""
+rule      pkts        bytes   interface
+----      ----        -----   ---------
+{% for r in output %}
+{% if r.comment %}
+{% set packets   = r.counter.packets %}
+{% set bytes     = r.counter.bytes %}
+{% set interface = r.interface %}
+{# remove rule comment prefix #}
+{% set comment   = r.comment | replace('SRC-NAT-', '') | replace('DST-NAT-', '') | replace(' tcp_udp', '') %}
+{{ "%-4s" | format(comment) }} {{ "%9s" | format(packets) }} {{ "%12s" | format(bytes) }}   {{ interface }}
+{% endif %}
+{% endfor %}
+"""
+
+parser = ArgumentParser()
+group = parser.add_mutually_exclusive_group()
+group.add_argument("--source", help="Show statistics for configured source NAT rules", action="store_true")
+group.add_argument("--destination", help="Show statistics for configured destination NAT rules", action="store_true")
+args = parser.parse_args()
+
+if args.source or args.destination:
+    tmp = cmd('sudo nft -j list table ip6 nat')
+    tmp = json.loads(tmp)
+
+    source = r"nftables[?rule.chain=='POSTROUTING'].rule.{chain: chain, handle: handle, comment: comment, counter: expr[].counter | [0], interface: expr[].match.right | [0] }"
+    destination = r"nftables[?rule.chain=='PREROUTING'].rule.{chain: chain, handle: handle, comment: comment, counter: expr[].counter | [0], interface: expr[].match.right | [0] }"
+    data = {
+        'output' : jmespath.search(source if args.source else destination, tmp),
+        'direction' : 'source' if args.source else 'destination'
+    }
+
+    tmpl = Template(OUT_TMPL_SRC, lstrip_blocks=True)
+    print(tmpl.render(data))
+    exit(0)
+else:
+    parser.print_help()
+    exit(1)
+
-- 
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