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| 1 | +#!/usr/bin/env python3 |
| 2 | +# |
| 3 | +# Copyright (C) 2024 VyOS maintainers and contributors |
| 4 | +# |
| 5 | +# This program is free software; you can redistribute it and/or modify |
| 6 | +# it under the terms of the GNU General Public License version 2 or later as |
| 7 | +# published by the Free Software Foundation. |
| 8 | +# |
| 9 | +# This program is distributed in the hope that it will be useful, |
| 10 | +# but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | +# GNU General Public License for more details. |
| 13 | +# |
| 14 | +# You should have received a copy of the GNU General Public License |
| 15 | +# along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 16 | + |
| 17 | +import json |
| 18 | +import re |
| 19 | +import sys |
| 20 | + |
| 21 | +from datetime import datetime |
| 22 | + |
| 23 | +from vyos.config import Config |
| 24 | +from vyos.utils.process import cmd |
| 25 | + |
| 26 | +import vyos.opmode |
| 27 | + |
| 28 | +wlb_status_file = '/run/wlb_status.json' |
| 29 | + |
| 30 | +status_format = '''Interface: {ifname} |
| 31 | +Status: {status} |
| 32 | +Last Status Change: {last_change} |
| 33 | +Last Interface Success: {last_success} |
| 34 | +Last Interface Failure: {last_failure} |
| 35 | +Interface Failures: {failures} |
| 36 | +''' |
| 37 | + |
| 38 | +def _verify(func): |
| 39 | + """Decorator checks if WLB config exists""" |
| 40 | + from functools import wraps |
| 41 | + |
| 42 | + @wraps(func) |
| 43 | + def _wrapper(*args, **kwargs): |
| 44 | + config = Config() |
| 45 | + if not config.exists(['load-balancing', 'wan']): |
| 46 | + unconf_message = 'WAN load-balancing is not configured' |
| 47 | + raise vyos.opmode.UnconfiguredSubsystem(unconf_message) |
| 48 | + return func(*args, **kwargs) |
| 49 | + return _wrapper |
| 50 | + |
| 51 | +def _get_raw_data(): |
| 52 | + with open(wlb_status_file, 'r') as f: |
| 53 | + data = json.loads(f.read()) |
| 54 | + if not data: |
| 55 | + return {} |
| 56 | + return data |
| 57 | + |
| 58 | +def _get_formatted_output(raw_data): |
| 59 | + for ifname, if_data in raw_data.items(): |
| 60 | + latest_change = if_data['last_success'] if if_data['last_success'] > if_data['last_failure'] else if_data['last_failure'] |
| 61 | + |
| 62 | + change_dt = datetime.fromtimestamp(latest_change) if latest_change > 0 else None |
| 63 | + success_dt = datetime.fromtimestamp(if_data['last_success']) if if_data['last_success'] > 0 else None |
| 64 | + failure_dt = datetime.fromtimestamp(if_data['last_failure']) if if_data['last_failure'] > 0 else None |
| 65 | + now = datetime.utcnow() |
| 66 | + |
| 67 | + fmt_data = { |
| 68 | + 'ifname': ifname, |
| 69 | + 'status': "active" if if_data['state'] else "failed", |
| 70 | + 'last_change': change_dt.strftime("%Y-%m-%d %H:%M:%S") if change_dt else 'N/A', |
| 71 | + 'last_success': str(now - success_dt) if success_dt else 'N/A', |
| 72 | + 'last_failure': str(now - failure_dt) if failure_dt else 'N/A', |
| 73 | + 'failures': if_data['failure_count'] |
| 74 | + } |
| 75 | + print(status_format.format(**fmt_data)) |
| 76 | + |
| 77 | +@_verify |
| 78 | +def show_summary(raw: bool): |
| 79 | + data = _get_raw_data() |
| 80 | + |
| 81 | + if raw: |
| 82 | + return data |
| 83 | + else: |
| 84 | + return _get_formatted_output(data) |
| 85 | + |
| 86 | +@_verify |
| 87 | +def show_connection(raw: bool): |
| 88 | + res = cmd('sudo conntrack -L -n') |
| 89 | + lines = res.split("\n") |
| 90 | + filtered_lines = [line for line in lines if re.search(r' mark=[1-9]', line)] |
| 91 | + |
| 92 | + if raw: |
| 93 | + return filtered_lines |
| 94 | + |
| 95 | + for line in lines: |
| 96 | + print(line) |
| 97 | + |
| 98 | +@_verify |
| 99 | +def show_status(raw: bool): |
| 100 | + res = cmd('sudo nft list chain ip vyos_wanloadbalance wlb_mangle_prerouting') |
| 101 | + lines = res.split("\n") |
| 102 | + filtered_lines = [line.replace("\t", "") for line in lines[3:-2] if 'meta mark set' not in line] |
| 103 | + |
| 104 | + if raw: |
| 105 | + return filtered_lines |
| 106 | + |
| 107 | + for line in filtered_lines: |
| 108 | + print(line) |
| 109 | + |
| 110 | +if __name__ == "__main__": |
| 111 | + try: |
| 112 | + res = vyos.opmode.run(sys.modules[__name__]) |
| 113 | + if res: |
| 114 | + print(res) |
| 115 | + except (ValueError, vyos.opmode.Error) as e: |
| 116 | + print(e) |
| 117 | + sys.exit(1) |
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