mirror of
https://github.com/bashclub/check-opnsense.git
synced 2024-12-24 16:00:13 +01:00
Update opnsense_checkmk_agent.py
This commit is contained in:
Thorsten Spille
GitHub
parent
9661cc5da6
commit
ef78dda27d
@ -22,7 +22,7 @@
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## copy to /usr/local/etc/rc.syshook.d/start/99-checkmk_agent and chmod +x
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##
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__VERSION__ = "0.6"
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__VERSION__ = "0.61"
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import sys
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import os
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@ -87,20 +87,19 @@ class checkmk_checker(object):
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_lines.append("AgentOS: {os}".format(**self._info))
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_lines.append(f"Version: {__VERSION__}")
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_lines.append("Hostname: {hostname}".format(**self._info))
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_lines += self.check_cpu()
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_lines += self.check_uptime()
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_lines += self.check_df()
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_lines += self.check_ps()
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_lines += self.check_zfs()
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_lines += self.check_mounts()
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_lines += self.check_netctr()
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_lines += self.check_net()
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_lines += self.check_tcp()
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_lines += self.check_ntp()
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_lines += self.check_dhcp()
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for _check in dir(self):
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if _check.startswith("check_"):
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try:
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_lines += getattr(self,_check)()
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except:
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pass
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_lines.append("<<<local:sep(0)>>>")
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_lines += self.check_firmware()
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_lines += self.check_openvpn()
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for _check in dir(self):
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if _check.startswith("checklocal_"):
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try:
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_lines += getattr(self,_check)()
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except:
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pass
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_lines.append("")
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return "\n".join(_lines)
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@ -135,9 +134,9 @@ class checkmk_checker(object):
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@staticmethod
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def get_common_name(certrdn):
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try:
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return next(filter(lambda x: x.oid == x509.oid.NameOID.COMMON_NAME,certrdn)).value
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return next(filter(lambda x: x.oid == x509.oid.NameOID.COMMON_NAME,certrdn)).value.strip()
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except:
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return "fail"
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return str(certrdn)
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def _certificate_parser(self):
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self._certificate_timestamp = time.time()
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@ -181,9 +180,24 @@ class checkmk_checker(object):
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continue
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_desc = _interface.get("descr")
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_ifs[_interface.get("if","_")] = _desc if _desc else _name.upper()
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try:
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_wgserver = self._config_reader().get("OPNsense").get("wireguard").get("server").get("servers").get("server")
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if type(_wgserver) == dict:
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_wgserver = [_wgserver]
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_ifs.update(
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dict(
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map(
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lambda x: ("wg{}".format(x.get("instance")),x.get("name")),
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_wgserver
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)
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)
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)
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except:
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raise
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return _ifs
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def check_firmware(self):
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def checklocal_firmware(self):
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if self._info.get("os_version") != self._info.get("latest_version"):
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return ["1 Firmware update_available=1 Version {os_version} ({latest_version} available)".format(**self._info)]
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return ["0 Firmware update_available=0 Version {os_version}".format(**self._info)]
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@ -260,7 +274,28 @@ class checkmk_checker(object):
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_ret.append(_ip)
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return _ret
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def check_openvpn(self):
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@staticmethod
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def _read_from_openvpnsocket(vpnsocket,cmd):
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_sock = socket.socket(socket.AF_UNIX,socket.SOCK_STREAM)
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try:
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_sock.connect(vpnsocket)
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assert (_sock.recv(4096).decode("utf-8")).startswith(">INFO")
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cmd = cmd.strip() + "\n"
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_sock.send(cmd.encode("utf-8"))
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_data = ""
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while True:
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_socket_data = _sock.recv(4096).decode("utf-8")
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_data += _socket_data
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if _socket_data.strip().endswith("END") or _socket_data.strip().startswith("SUCCESS:"):
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break
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return _data
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finally:
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_sock.send("quit\n".encode("utf-8"))
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_sock.close()
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_sock = None
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return ""
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def checklocal_openvpn(self):
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_ret = [""]
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_cfr = self._config_reader().get("openvpn")
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if type(_cfr) != dict:
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@ -283,10 +318,12 @@ class checkmk_checker(object):
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if not _server.get("maxclients"):
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_max_clients = ipaddress.IPv4Network(_server.get("tunnel_network")).num_addresses -2
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if _server.get("topology_subnet") != "yes":
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_max_clients = int(_max_clients/4)
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_max_clients = max(1,int(_max_clients/4)) ## p2p
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_server["maxclients"] = _max_clients
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_server_cert = self._get_certificate(_server.get("certref"))
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_nclients, _server["bytesin"], _server["bytesout"] = 0,0,0
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_server["expiredays"] = 0
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_server["expiredate"] = "no certificate found"
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if _server_cert:
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_notvalidafter = _server_cert.get("not_valid_after")
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@ -294,48 +331,43 @@ class checkmk_checker(object):
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_server["expiredate"] = time.strftime("Cert Expire: %d.%m.%Y",time.localtime(_notvalidafter))
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try:
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_unix = "/var/etc/openvpn/server{vpnid}.sock".format(**_server)
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_sock = socket.socket(socket.AF_UNIX,socket.SOCK_STREAM)
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try:
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_sock.connect(_unix)
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_sock.send("status 2\n".encode("utf-8"))
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_data = ""
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while True:
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_socket_data = _sock.recv(4096).decode("utf-8")
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if _socket_data:
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_data += _socket_data
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if _socket_data.find("\nEND\r\n") > -1:
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break
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_number_of_clients = 0
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_now = int(time.time())
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for _client_match in re.finditer("^CLIENT_LIST,(.*?)$",_data,re.M):
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_number_of_clients += 1
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_client_raw = _client_match.group(1).split(",")
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_client = {
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"server" : _server.get("name"),
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"common_name" : _client_raw[0],
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"remote_ip" : _client_raw[1].split(":")[0],
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"vpn_ip" : _client_raw[2],
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"vpn_ipv6" : _client_raw[3],
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"bytes_received" : int(_client_raw[4]),
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"bytes_sent" : int(_client_raw[5]),
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"uptime" : _now - int(_client_raw[7]),
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"username" : _client_raw[8] if _client_raw[8] != "UNDEF" else _client_raw[0],
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"clientid" : int(_client_raw[9]),
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"cipher" : _client_raw[11].strip("\r\n")
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}
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if _client_raw[0].upper() in _monitored_clients:
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_monitored_clients[_client_raw[0].upper()]["current"].append(_client)
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finally:
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_server["status"] = 0
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_sock.close()
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_nclients, _server["bytesin"], _server["bytesout"] = re.findall("=(\d+)",self._read_from_openvpnsocket(_unix,"load-stats"))
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except:
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pass
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_number_of_clients = 0
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_now = int(time.time())
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_response = self._read_from_openvpnsocket(_unix,"status 2")
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for _client_match in re.finditer("^CLIENT_LIST,(.*?)$",_response,re.M):
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_number_of_clients += 1
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_client_raw = _client_match.group(1).split(",")
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_client = {
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"server" : _server.get("name"),
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"common_name" : _client_raw[0],
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"remote_ip" : _client_raw[1].split(":")[0],
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"vpn_ip" : _client_raw[2],
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"vpn_ipv6" : _client_raw[3],
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"bytes_received" : int(_client_raw[4]),
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"bytes_sent" : int(_client_raw[5]),
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"uptime" : _now - int(_client_raw[7]),
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"username" : _client_raw[8] if _client_raw[8] != "UNDEF" else _client_raw[0],
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"clientid" : int(_client_raw[9]),
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"cipher" : _client_raw[11].strip("\r\n")
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}
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if _client_raw[0].upper() in _monitored_clients:
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_monitored_clients[_client_raw[0].upper()]["current"].append(_client)
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_server["status"] = 0
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if _server["expiredays"] < 61:
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_server["status"] = 2 if _server["expiredays"] < 31 else 1
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else:
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_server["expiredate"] = "\\n" + _server["expiredate"]
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_server["clientcount"] = _number_of_clients
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_ret.append('{status} "OpenVPN Server: {name}" connections_ssl_vpn={clientcount};;{maxclients}|expiredays={expiredays} {clientcount}/{maxclients} Connections Port:{local_port}/{protocol} {expiredate}'.format(**_server))
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_ret.append('{status} "OpenVPN Server: {name}" connections_ssl_vpn={clientcount};;{maxclients}|if_in_octets={bytesin}|if_out_octets={bytesout}|expiredays={expiredays} {clientcount}/{maxclients} Connections Port:{local_port}/{protocol} {expiredate}'.format(**_server))
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except:
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raise
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_server["status"] = 2
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_ret.append('2 "OpenVPN Server: {name}" connections_ssl_vpn=0;;{maxclients}|expiredays={expiredays} Server down Port:{local_port}/{protocol} {expiredate}'.format(**_server))
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@ -345,6 +377,7 @@ class checkmk_checker(object):
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_client["description"] = _client.get("common_name")
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_client["expiredays"] = 0
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_client["expiredate"] = "no certificate found"
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_client["status"] = 0
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_cert = self._get_certificate_by_cn(_client.get("common_name"))
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if _cert:
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_notvalidafter = _cert.get("not_valid_after")
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@ -363,10 +396,9 @@ class checkmk_checker(object):
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_client["longdescr"] = ""
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for _conn in _current_conn:
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_client["longdescr"] += "Server:{server} {remote_ip}->{vpn_ip} {cipher} ".format(**_conn)
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_client["status"] = 0
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_ret.append('{status} "OpenVPN Client: {description}" uptime={uptime}|connections_ssl_vpn={count}|net_data_recv={bytes_received}|net_data_sent={bytes_sent}|expiredays={expiredays} {longdescr} {expiredate}'.format(**_client))
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_ret.append('{status} "OpenVPN Client: {description}" connectiontime={uptime}|connections_ssl_vpn={count}|if_in_octets={bytes_received}|if_out_octets={bytes_sent}|expiredays={expiredays} {longdescr} {expiredate}'.format(**_client))
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else:
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_ret.append('2 "OpenVPN Client: {description}" uptime=0|connections_ssl_vpn=0|net_data_recv=0|net_data_sent=0|expiredays={expiredays} Nicht verbunden {expiredate}'.format(**_client))
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_ret.append('2 "OpenVPN Client: {description}" connectiontime=0|connections_ssl_vpn=0|if_in_octets=0|if_out_octets=0|expiredays={expiredays} Nicht verbunden {expiredate}'.format(**_client))
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return _ret
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def check_df(self):
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