fix check_openwrt_bssid
This commit is contained in:
parent
7ec527199e
commit
31043bd979
|
|
@ -3,6 +3,7 @@ import argparse
|
|||
import json
|
||||
import re
|
||||
import sys
|
||||
import time
|
||||
import traceback
|
||||
|
||||
import paramiko
|
||||
|
|
@ -11,90 +12,124 @@ from checker import nagios
|
|||
from checker.result import quit_check
|
||||
from checker.types import try_int, try_float
|
||||
|
||||
WIFI_2 = list(range(1, 12))
|
||||
WIFI_5 = list(range(32, 178))
|
||||
|
||||
|
||||
def main(args):
|
||||
command = 'iwinfo scan0 scan'
|
||||
command = f'iwinfo {args.interface} scan'
|
||||
ssh = paramiko.SSHClient()
|
||||
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
|
||||
|
||||
try:
|
||||
ssh.connect(args.host, username='root')
|
||||
except paramiko.ssh_exception.AuthenticationException:
|
||||
print(f'SSH authentication to {args.host} failed! Make sure your key exists on the remote system or copy it over with ssh-copy-id')
|
||||
sys.exit(1)
|
||||
for _ in range(args.retries + 1):
|
||||
try:
|
||||
ssh.connect(args.host, username='root')
|
||||
except paramiko.ssh_exception.AuthenticationException:
|
||||
quit_check(f'SSH authentication to root@{args.host} failed! Make sure your key exists on the remote system or copy it over with ssh-copy-id', nagios.STATE_UNKNOWN)
|
||||
sys.exit(nagios.STATE_UNKNOWN)
|
||||
except paramiko.ssh_exception.NoValidConnectionsError:
|
||||
quit_check(f'SSH connection failed to {args.host}', nagios.STATE_UNKNOWN)
|
||||
|
||||
stdin, stdout, stderr = ssh.exec_command(command)
|
||||
output = [str(x).strip('\n').strip(' ') for x in stdout.readlines()]
|
||||
stdin, stdout, stderr = ssh.exec_command(command)
|
||||
if stdout.channel.recv_exit_status() != 0:
|
||||
quit_check(f'command failed:\nSTDOUT: {"".join(stdout.readlines())}\nSTDERR: {"".join(stderr.readlines())}', nagios.STATE_UNKNOWN)
|
||||
output = [str(x).strip('\n').strip(' ') for x in stdout.readlines()]
|
||||
|
||||
cells = {}
|
||||
cells = {}
|
||||
|
||||
for line in output:
|
||||
if line.startswith('Cell '):
|
||||
address = re.search(r'Address:\s(.*?)$', line).group(1)
|
||||
cells[address] = {}
|
||||
elif line.startswith('ESSID: '):
|
||||
if line == 'ESSID: unknown':
|
||||
ssid = None
|
||||
else:
|
||||
ssid = re.search(r'ESSID:\s"(.*?)"$', line).group(1)
|
||||
cells[list(cells.keys())[-1]]['ssid'] = ssid
|
||||
elif line.startswith('Mode: '):
|
||||
m = re.search(r'Mode: .*?\s\sFrequency: ([0-9.]*) GHz\s\sBand: ([0-9.]*) GHz\s\sChannel: ([0-9]*)$', line)
|
||||
cells[list(cells.keys())[-1]]['freq'] = try_float(m.group(1))
|
||||
cells[list(cells.keys())[-1]]['band'] = try_float(m.group(2))
|
||||
cells[list(cells.keys())[-1]]['chan'] = try_int(m.group(3))
|
||||
elif line.startswith('Encryption: '):
|
||||
enc = re.search(r'Encryption: (.*?)$', line).group(1)
|
||||
cells[list(cells.keys())[-1]]['enc'] = enc
|
||||
elif line.startswith('Channel Width: '):
|
||||
width = re.search(r'Channel Width: (.*?)$', line).group(1)
|
||||
cells[list(cells.keys())[-1]]['chan_width'] = width
|
||||
elif line.startswith('Signal: '):
|
||||
m = re.search(r'Signal: (-[0-9]*) dBm\s\sQuality: ([0-9]*)/([0-9]*)$', line)
|
||||
cells[list(cells.keys())[-1]]['signal'] = try_int(m.group(1))
|
||||
cells[list(cells.keys())[-1]]['quality'] = (try_int(m.group(2)), try_int(m.group(3)))
|
||||
for line in output:
|
||||
if line.startswith('Cell '):
|
||||
address = re.search(r'Address:\s(.*?)$', line).group(1)
|
||||
cells[address] = {}
|
||||
elif line.startswith('ESSID: '):
|
||||
if line == 'ESSID: unknown':
|
||||
ssid = None
|
||||
else:
|
||||
ssid = re.search(r'ESSID:\s"(.*?)"$', line).group(1)
|
||||
cells[list(cells.keys())[-1]]['ssid'] = ssid
|
||||
elif line.startswith('Mode: '):
|
||||
m = re.search(r'Mode: .*?\s\sFrequency: ([0-9.]*) GHz\s\sBand: ([0-9.]*) GHz\s\sChannel: ([0-9]*)$', line)
|
||||
if not m:
|
||||
# Older OpenWRT versions display this info differently.
|
||||
m = re.search(r'Mode: .*?\s\sChannel: ([0-9]*)$', line)
|
||||
chan = try_int(m.group(1))
|
||||
if chan in WIFI_2:
|
||||
band = 2.4
|
||||
elif chan in WIFI_5:
|
||||
band = 5
|
||||
else:
|
||||
raise Exception
|
||||
freq = -1
|
||||
else:
|
||||
freq = try_float(m.group(1))
|
||||
band = try_float(m.group(2))
|
||||
chan = try_int(m.group(3))
|
||||
cells[list(cells.keys())[-1]]['freq'] = freq
|
||||
cells[list(cells.keys())[-1]]['band'] = band
|
||||
cells[list(cells.keys())[-1]]['chan'] = chan
|
||||
elif line.startswith('Encryption: '):
|
||||
enc = re.search(r'Encryption: (.*?)$', line).group(1)
|
||||
cells[list(cells.keys())[-1]]['enc'] = enc
|
||||
elif line.startswith('Channel Width: '):
|
||||
width = re.search(r'Channel Width: (.*?)$', line).group(1)
|
||||
cells[list(cells.keys())[-1]]['chan_width'] = width
|
||||
elif line.startswith('Signal: '):
|
||||
m = re.search(r'Signal: (-[0-9]*) dBm\s\sQuality: ([0-9]*)/([0-9]*)$', line)
|
||||
cells[list(cells.keys())[-1]]['signal'] = try_int(m.group(1))
|
||||
cells[list(cells.keys())[-1]]['quality'] = (try_int(m.group(2)), try_int(m.group(3)))
|
||||
|
||||
if args.print:
|
||||
print(json.dumps(cells))
|
||||
sys.exit(nagios.STATE_UNKNOWN)
|
||||
if args.print:
|
||||
print(json.dumps(cells))
|
||||
sys.exit(nagios.STATE_UNKNOWN)
|
||||
|
||||
if args.target_mac not in list(cells.keys()):
|
||||
quit_check(f'AP address not found: {args.target_mac}', nagios.STATE_CRIT)
|
||||
if args.target_mac not in list(cells.keys()):
|
||||
time.sleep(10)
|
||||
continue
|
||||
|
||||
ap_data = cells[args.target_mac]
|
||||
computed_quality = int(try_float(ap_data['quality'][0]) / try_float(ap_data['quality'][1]) * 100)
|
||||
perfdata = {
|
||||
'signal': {'value': try_int(ap_data['signal']), 'warn': args.signal_warn, 'crit': args.signal_crit},
|
||||
'quality': {'value': int(computed_quality), 'warn': args.quality_warn, 'crit': args.quality_crit, 'unit': '%'},
|
||||
'freq': {'value': ap_data['freq']},
|
||||
'band': {'value': ap_data['band']},
|
||||
'chan': {'value': ap_data['chan']},
|
||||
'chan_width': {'value': ap_data['chan_width']},
|
||||
}
|
||||
ap_data = cells[args.target_mac]
|
||||
computed_quality = int(try_float(ap_data['quality'][0]) / try_float(ap_data['quality'][1]) * 100)
|
||||
|
||||
if ap_data['ssid'] != args.expected_ssid:
|
||||
quit_check(f'AP does not have the right SSID.\n{json.dumps(ap_data)}', nagios.STATE_CRIT, perfdata=perfdata)
|
||||
chan_width = ap_data['chan_width'].strip(' MHz')
|
||||
if re.search(r'[a-zA-Z]', chan_width):
|
||||
# OpenWRT may be unsure about the channel width.
|
||||
chan_width = -1
|
||||
|
||||
if ap_data['signal'] <= args.signal_crit:
|
||||
quit_check(f'Signal strength is weak: {ap_data["signal"]} dBm', nagios.STATE_CRIT, perfdata=perfdata)
|
||||
perfdata = {
|
||||
'signal': {'value': try_int(ap_data['signal']), 'warn': args.signal_warn, 'crit': args.signal_crit},
|
||||
'quality': {'value': int(computed_quality), 'warn': args.quality_warn, 'crit': args.quality_crit, 'unit': '%'},
|
||||
'freq': {'value': ap_data['freq']},
|
||||
'band': {'value': ap_data['band']},
|
||||
'chan': {'value': ap_data['chan']},
|
||||
'chan_width': {'value': chan_width},
|
||||
}
|
||||
|
||||
if ap_data['signal'] <= args.signal_warn:
|
||||
quit_check(f'Signal strength is weak: {ap_data["signal"]} dBm', nagios.STATE_WARN, perfdata=perfdata)
|
||||
if ap_data['ssid'] != args.expected_ssid:
|
||||
quit_check(f'AP does not have the right SSID.\n{json.dumps(ap_data)}', nagios.STATE_CRIT, perfdata=perfdata)
|
||||
|
||||
if computed_quality <= args.quality_crit:
|
||||
quit_check(f'Signal quality is low: {ap_data["quality"][0]}/{ap_data["quality"][1]} ({computed_quality}%)', nagios.STATE_CRIT, perfdata=perfdata)
|
||||
if ap_data['signal'] <= args.signal_crit:
|
||||
quit_check(f'Signal strength is weak: {ap_data["signal"]} dBm', nagios.STATE_CRIT, perfdata=perfdata)
|
||||
|
||||
if computed_quality <= args.quality_warn:
|
||||
quit_check(f'Signal quality is low: {ap_data["quality"][0]}/{ap_data["quality"][1]} ({computed_quality}%)', nagios.STATE_WARN, perfdata=perfdata)
|
||||
if ap_data['signal'] <= args.signal_warn:
|
||||
quit_check(f'Signal strength is weak: {ap_data["signal"]} dBm', nagios.STATE_WARN, perfdata=perfdata)
|
||||
|
||||
quit_check(f"{ap_data['ssid']} ({args.target_mac}) is healthy. Signal: {ap_data['signal']} dBm. Quality: {computed_quality}%. Frequency: {ap_data['freq']} GHz. Band: {ap_data['band']} GHz. Channel: {ap_data['chan']} @ {ap_data['chan_width']} width. Encryption: {ap_data['enc']}.",
|
||||
nagios.STATE_OK,
|
||||
perfdata=perfdata)
|
||||
if computed_quality <= args.quality_crit:
|
||||
quit_check(f'Signal quality is low: {ap_data["quality"][0]}/{ap_data["quality"][1]} ({computed_quality}%)', nagios.STATE_CRIT, perfdata=perfdata)
|
||||
|
||||
if computed_quality <= args.quality_warn:
|
||||
quit_check(f'Signal quality is low: {ap_data["quality"][0]}/{ap_data["quality"][1]} ({computed_quality}%)', nagios.STATE_WARN, perfdata=perfdata)
|
||||
|
||||
quit_check(f"{ap_data['ssid']} ({args.target_mac}) is healthy. Signal: {ap_data['signal']} dBm. Quality: {computed_quality}%. Frequency: {ap_data['freq']} GHz. Band: {ap_data['band']} GHz. Channel: {ap_data['chan']} @ {ap_data['chan_width']} width. Encryption: {ap_data['enc']}.",
|
||||
nagios.STATE_OK,
|
||||
perfdata=perfdata)
|
||||
|
||||
quit_check(f'AP address not found: {args.target_mac}', nagios.STATE_CRIT)
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
parser = argparse.ArgumentParser()
|
||||
parser.add_argument('--host', required=True, help='The host to SSH into.')
|
||||
parser.add_argument('--interface', required=True, help='The wireless interface to use (example: `wlan0`).')
|
||||
parser.add_argument('--retries', default=3, help='If the target AP is not found, do this many retries.')
|
||||
parser.add_argument('--print', action='store_true', help='Print the found APs.')
|
||||
parser.add_argument('--target-mac', required=True, help='The MAC address of the target AP.')
|
||||
parser.add_argument('--expected-ssid', required=True, help="The AP's expected SSID.")
|
||||
|
|
|
|||
Loading…
Reference in New Issue