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Update opnsense_checkmk_agent.py

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Thorsten Spille 2022-01-21 13:44:09 +01:00 committed by GitHub
parent 8b56dec2c4
commit 2eb6ac70c8
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1 changed files with 65 additions and 52 deletions
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opnsense_checkmk_agent.py
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@ -22,7 +22,7 @@
## copy to /usr/local/etc/rc.syshook.d/start/99-checkmk_agent and chmod +x ## copy to /usr/local/etc/rc.syshook.d/start/99-checkmk_agent and chmod +x
## ##
__VERSION__ = "0.63" __VERSION__ = "0.64"
import sys import sys
import os import os
@ -338,7 +338,6 @@ class checkmk_checker(object):
_traffic_in = _traffic_out = 0 _traffic_in = _traffic_out = 0
if _hist_data: if _hist_data:
_hist_slot,_hist_bytesin, _hist_bytesout = _hist_data _hist_slot,_hist_bytesin, _hist_bytesout = _hist_data
pprint(_hist_data)
_traffic_in = int(totalbytesin -_hist_bytesin) / max(1,_slot - _hist_slot) _traffic_in = int(totalbytesin -_hist_bytesin) / max(1,_slot - _hist_slot)
_traffic_out = int(totalbytesout - _hist_bytesout) / max(1,_slot - _hist_slot) _traffic_out = int(totalbytesout - _hist_bytesout) / max(1,_slot - _hist_slot)
if _hist_slot != _slot: if _hist_slot != _slot:
@ -402,38 +401,59 @@ class checkmk_checker(object):
_monitored_clients = dict(map(lambda x: (x.get("common_name").upper(),dict(x,current=[])),_cso)) _monitored_clients = dict(map(lambda x: (x.get("common_name").upper(),dict(x,current=[])),_cso))
_now = time.time() _now = time.time()
_vpnclient = _cfr.get("openvpn-client",[])
_vpnserver = _cfr.get("openvpn-server",[]) _vpnserver = _cfr.get("openvpn-server",[])
if type(_vpnserver) == None: if type(_vpnserver) != list:
return _ret _vpnserver = [_vpnserver] if _vpnserver else []
if type(_vpnserver) == dict: if type(_vpnclient) != list:
_vpnserver = [_vpnserver] _vpnclient = [_vpnclient] if _vpnclient else []
for _server in _vpnserver: for _server in _vpnserver + _vpnclient:
## server_tls, p2p_shared_key p2p_tls
_server["name"] = _server.get("description") if _server.get("description").strip() else "OpenVPN_{protocoll}_{local_port}".format(**_server) _server["name"] = _server.get("description") if _server.get("description").strip() else "OpenVPN_{protocoll}_{local_port}".format(**_server)
_caref = _server.get("caref") _caref = _server.get("caref")
if not _server.get("maxclients"):
_max_clients = ipaddress.IPv4Network(_server.get("tunnel_network")).num_addresses -2
if _server.get("topology_subnet") != "yes":
_max_clients = max(1,int(_max_clients/4)) ## p2p
_server["maxclients"] = _max_clients
_server_cert = self._get_certificate(_server.get("certref")) _server_cert = self._get_certificate(_server.get("certref"))
_server["status"] = 3
_server["expiredays"] = 0 _server["expiredays"] = 0
_server["expiredate"] = "no certificate found" _server["expiredate"] = "no certificate found"
if _server_cert: if _server_cert:
_notvalidafter = _server_cert.get("not_valid_after") _notvalidafter = _server_cert.get("not_valid_after")
_server["expiredays"] = int((_notvalidafter - _now) / 86400) _server["expiredays"] = int((_notvalidafter - _now) / 86400)
_server["expiredate"] = time.strftime("Cert Expire: %d.%m.%Y",time.localtime(_notvalidafter)) _server["expiredate"] = time.strftime("Cert Expire: %d.%m.%Y",time.localtime(_notvalidafter))
if _server["expiredays"] < 61:
_server["status"] = 2 if _server["expiredays"] < 31 else 1
else:
_server["expiredate"] = "\\n" + _server["expiredate"]
try: _server["type"] = "server" if _server.get("local_port") else "client"
_unix = "/var/etc/openvpn/server{vpnid}.sock".format(**_server) if _server.get("mode") in ("p2p_shared_key","p2p_tls"):
_unix = "/var/etc/openvpn/{type}{vpnid}.sock".format(**_server)
try: try:
_server["bytesin"], _server["bytesout"] = self._get_openvpn_traffic( _server["bytesin"], _server["bytesout"] = self._get_openvpn_traffic(
"SRV_{name}".format(**_server), "SRV_{name}".format(**_server),
*(map(lambda x: int(x),re.findall("bytes\w+=(\d+)",self._read_from_openvpnsocket(_unix,"load-stats")))) *(map(lambda x: int(x),re.findall("bytes\w+=(\d+)",self._read_from_openvpnsocket(_unix,"load-stats"))))
) )
_server["status"] = 0 _server["status"] = 0 if _server["status"] == 3 else _server["status"]
_ret.append('{status} "OpenVPN Connection: {name}" connections_ssl_vpn=1;;|if_in_octets={bytesin}|if_out_octets={bytesout}|expiredays={expiredays} Connection Port:/{protocol} {expiredate}'.format(**_server))
except:
_ret.append('2 "OpenVPN Connection: {name}" connections_ssl_vpn=0;;|expiredays={expiredays}|if_in_octets=0|if_out_octets=0 Server down Port:/{protocol} {expiredate}'.format(**_server))
raise
else:
if not _server.get("maxclients"):
_max_clients = ipaddress.IPv4Network(_server.get("tunnel_network")).num_addresses -2
if _server.get("topology_subnet") != "yes":
_max_clients = max(1,int(_max_clients/4)) ## p2p
_server["maxclients"] = _max_clients
try:
_unix = "/var/etc/openvpn/{type}{vpnid}.sock".format(**_server)
try:
_server["bytesin"], _server["bytesout"] = self._get_openvpn_traffic(
"SRV_{name}".format(**_server),
*(map(lambda x: int(x),re.findall("bytes\w+=(\d+)",self._read_from_openvpnsocket(_unix,"load-stats"))))
)
_server["status"] = 0 if _server["status"] == 3 else _server["status"]
except: except:
_server["bytesin"], _server["bytesout"] = 0,0 _server["bytesin"], _server["bytesout"] = 0,0
raise raise
@ -443,7 +463,7 @@ class checkmk_checker(object):
_response = self._read_from_openvpnsocket(_unix,"status 2") _response = self._read_from_openvpnsocket(_unix,"status 2")
for _client_match in re.finditer("^CLIENT_LIST,(.*?)$",_response,re.M): for _client_match in re.finditer("^CLIENT_LIST,(.*?)$",_response,re.M):
_number_of_clients += 1 _number_of_clients += 1
_client_raw = _client_match.group(1).split(",") _client_raw = list(map(lambda x: x.strip(),_client_match.group(1).split(",")))
_client = { _client = {
"server" : _server.get("name"), "server" : _server.get("name"),
"common_name" : _client_raw[0], "common_name" : _client_raw[0],
@ -457,20 +477,13 @@ class checkmk_checker(object):
"clientid" : int(_client_raw[9]), "clientid" : int(_client_raw[9]),
"cipher" : _client_raw[11].strip("\r\n") "cipher" : _client_raw[11].strip("\r\n")
} }
if _client_raw[0].upper() in _monitored_clients: if _client["username"].upper() in _monitored_clients:
_monitored_clients[_client_raw[0].upper()]["current"].append(_client) _monitored_clients[_client["username"].upper()]["current"].append(_client)
if _server["expiredays"] < 61:
_server["status"] = 2 if _server["expiredays"] < 31 else 1
else:
_server["expiredate"] = "\\n" + _server["expiredate"]
_server["clientcount"] = _number_of_clients _server["clientcount"] = _number_of_clients
_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)) _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))
except: except:
_server["status"] = 2 _ret.append('2 "OpenVPN Server: {name}" connections_ssl_vpn=0;;{maxclients}|expiredays={expiredays}|if_in_octets=0|if_out_octets=0| Server down Port:{local_port}/{protocol} {expiredate}'.format(**_server))
_ret.append('2 "OpenVPN Server: {name}" connections_ssl_vpn=0;;{maxclients}|expiredays={expiredays} Server down Port:{local_port}/{protocol} {expiredate}'.format(**_server))
for _client in _monitored_clients.values(): for _client in _monitored_clients.values():
_current_conn = _client.get("current",[]) _current_conn = _client.get("current",[])
@ -501,7 +514,7 @@ class checkmk_checker(object):
_client["longdescr"] = "" _client["longdescr"] = ""
for _conn in _current_conn: for _conn in _current_conn:
_client["longdescr"] += "Server:{server} {remote_ip}->{vpn_ip} {cipher} ".format(**_conn) _client["longdescr"] += "Server:{server} {remote_ip}:{vpn_ip} {cipher} ".format(**_conn)
_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)) _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))
else: else:
_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)) _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))