nat66: T4626: Rewrite op-mode show nat66 rules

Rewrite op-mode "show nat66 source|destination rules" to the
new format
use "show_rules --direction <direction> --family <inet|inet6>"
Delete old script show_nat66_rules.py

1 files changed, 0 insertions, 102 deletions

diff --git a/src/op_mode/show_nat66_rules.py b/src/op_mode/show_nat66_rules.py
deleted file mode 100755
index 967ec9d37..000000000
--- a/src/op_mode/show_nat66_rules.py
+++ /dev/null
@@ -1,102 +0,0 @@
-#!/usr/bin/env python3
-#
-# Copyright (C) 2021 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
-from vyos.util import dict_search
-
-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)
-    
-    format_nat66_rule = '{0: <10} {1: <50} {2: <50} {3: <10}'
-    print(format_nat66_rule.format("Rule", "Source" if args.source else "Destination", "Translation", "Outbound Interface" if args.source else "Inbound Interface"))
-    print(format_nat66_rule.format("----", "------" if args.source else "-----------", "-----------", "------------------" if args.source else "-----------------"))
-    
-    data_json = jmespath.search('nftables[?rule].rule[?chain]', tmp)
-    for idx in range(0, len(data_json)):
-        data = data_json[idx]
-        
-        # The following key values must exist
-        # When the rule JSON does not have some keys, this is not a rule we can work with
-        continue_rule = False
-        for key in ['comment', 'chain', 'expr']:
-            if key not in data:
-                continue_rule = True
-                continue
-        if continue_rule:
-            continue
-        
-        comment = data['comment']
-        
-        # Check the annotation to see if the annotation format is created by VYOS
-        continue_rule = True
-        for comment_prefix in ['SRC-NAT66-', 'DST-NAT66-']:
-            if comment_prefix in comment:
-                continue_rule = False
-        if continue_rule:
-            continue
-        
-        # When log is detected from the second index of expr, then this rule should be ignored
-        if 'log' in data['expr'][2]:
-            continue
-        
-        rule = comment.replace('SRC-NAT66-','')
-        rule = rule.replace('DST-NAT66-','')
-        chain = data['chain']
-        if not ((args.source and chain == 'POSTROUTING') or (not args.source and chain == 'PREROUTING')):
-            continue
-        interface = dict_search('match.right', data['expr'][0])
-        srcdest = dict_search('match.right.prefix.addr', data['expr'][2])
-        if srcdest:
-            addr_tmp = dict_search('match.right.prefix.len', data['expr'][2])
-            if addr_tmp:
-                srcdest = srcdest + '/' + str(addr_tmp)
-        else:
-            srcdest = dict_search('match.right', data['expr'][2])
-        
-        tran_addr_json = dict_search('snat.addr' if args.source else 'dnat.addr', data['expr'][3])
-        if tran_addr_json:
-            if isinstance(srcdest_json,str):
-                tran_addr = tran_addr_json
-
-            if 'prefix' in tran_addr_json:
-                addr_tmp = dict_search('snat.addr.prefix.addr' if args.source else 'dnat.addr.prefix.addr', data['expr'][3])
-                len_tmp = dict_search('snat.addr.prefix.len' if args.source else 'dnat.addr.prefix.len', data['expr'][3])
-                if addr_tmp:
-                    tran_addr = addr_tmp + '/' + str(len_tmp)
-        else:
-            if 'masquerade' in data['expr'][3]:
-                tran_addr = 'masquerade'
-        
-        print(format_nat66_rule.format(rule, srcdest, tran_addr, interface))
-    
-    exit(0)
-else:
-    parser.print_help()
-    exit(1)
-