def translate(lines):
# type: (List[bytes]) -> List[Tuple[bytes, bytes]]
result_lines = []
try:
oids_for_command = []
for line in lines:
oids_for_command.append(line.split(" ")[0])
command = [
"snmptranslate", "-m", "ALL",
"-M+%s" % cmk.utils.paths.local_mib_dir
] + oids_for_command
p = subprocess.Popen(command,
stdout=subprocess.PIPE,
stderr=open(os.devnull, "w"),
close_fds=True)
p.wait()
if p.stdout is None:
raise RuntimeError()
output = p.stdout.read()
result = output.split("\n")[0::2]
for idx, line in enumerate(result):
result_lines.append((line.strip(), lines[idx].strip()))
except Exception as e:
console.error("%s\n" % e)
return result_lines
def load_plugins(get_check_api_context, get_inventory_context):
# type: (config.GetCheckApiContext, config.GetInventoryApiContext) -> None
loaded_files = set() # type: Set[str]
filelist = config.get_plugin_paths(
str(cmk.utils.paths.local_inventory_dir),
cmk.utils.paths.inventory_dir)
for f in filelist:
if f[0] == "." or f[-1] == "~":
continue # ignore editor backup / temp files
file_name = os.path.basename(f)
if file_name in loaded_files:
continue # skip already loaded files (e.g. from local)
try:
plugin_context = _new_inv_context(get_check_api_context,
get_inventory_context)
known_plugins = inv_info
_load_plugin_includes(f, plugin_context)
exec(open(f).read(), plugin_context)
loaded_files.add(file_name)
except Exception as e:
console.error("Error in inventory plugin file %s: %s\n", f, e)
if cmk.utils.debug.enabled():
raise
continue
# Now store the check context for all plugins found in this file
for check_plugin_name in set(inv_info).difference(known_plugins):
_plugin_contexts[check_plugin_name] = plugin_context
def _execute_walks_for_dump(snmp_config, oids):
for oid in oids:
try:
console.verbose("Walk on \"%s\"..." % oid)
yield walk_for_export(snmp_config, oid)
except Exception as e:
console.error("Error: %s\n" % e)
if cmk.utils.debug.enabled():
raise
def _load_plugin_includes(check_file_path, plugin_context):
for name in config.includes_of_plugin(check_file_path):
path = _include_file_path(name)
try:
exec(open(path).read(), plugin_context)
except Exception as e:
console.error("Error in include file %s: %s\n", path, e)
if cmk.utils.debug.enabled():
raise
def _execute_walks_for_dump(snmp_config, oids):
# type: (SNMPHostConfig, List[OID]) -> Iterable[SNMPRowInfo]
for oid in oids:
try:
console.verbose("Walk on \"%s\"..." % oid)
yield walk_for_export(snmp_config, oid)
except Exception as e:
console.error("Error: %s\n" % e)
if cmk.utils.debug.enabled():
raise
def do_update(core, with_precompile):
try:
do_create_config(core, with_agents=with_precompile)
if with_precompile:
core.precompile()
except Exception as e:
console.error("Configuration Error: %s\n" % e)
if cmk.utils.debug.enabled():
raise
sys.exit(1)
def precompile_hostchecks():
console.verbose("Creating precompiled host check config...\n")
config.PackedConfig().save()
if not os.path.exists(cmk.utils.paths.precompiled_hostchecks_dir):
os.makedirs(cmk.utils.paths.precompiled_hostchecks_dir)
config_cache = config.get_config_cache()
console.verbose("Precompiling host checks...\n")
for host in config_cache.all_active_hosts():
try:
_precompile_hostcheck(config_cache, host)
except Exception as e:
if cmk.utils.debug.enabled():
raise
console.error("Error precompiling checks for host %s: %s\n" %
(host, e))
sys.exit(5)
def gather_snmp_check_plugin_names(host_config,
on_error,
do_snmp_scan,
for_inventory=False,
for_mgmt_board=False):
check_plugin_names = set()
try:
check_plugin_names.update(
_snmp_scan(host_config,
on_error=on_error,
do_snmp_scan=do_snmp_scan,
for_inv=for_inventory,
for_mgmt_board=for_mgmt_board))
except Exception as e:
if on_error == "raise":
raise
elif on_error == "warn":
console.error("SNMP scan failed: %s\n" % e)
return list(check_plugin_names)
def execute(self, cmd, args):
# type: (str, List[str]) -> Any
self._handle_generic_arguments(args)
try:
try:
automation = self._automations[cmd]
except KeyError:
raise MKAutomationError(
"Automation command '%s' is not implemented." % cmd)
if automation.needs_checks:
config.load_all_checks(check_api.get_check_api_context)
if automation.needs_config:
config.load(validate_hosts=False)
result = automation.execute(args)
except (MKAutomationError, MKTimeout) as e:
console.error("%s\n" % e)
if cmk.utils.debug.enabled():
raise
return 1
except Exception as e:
if cmk.utils.debug.enabled():
raise
console.error("%s\n" % e)
return 2
finally:
profiling.output_profile()
if cmk.utils.debug.enabled():
console.output(pprint.pformat(result) + "\n")
else:
console.output("%r\n" % (result, ))
return 0
def gather_snmp_check_plugin_names(host_config,
on_error,
do_snmp_scan,
for_inventory=False,
for_mgmt_board=False):
# type: (SNMPHostConfig, str, bool, bool, bool) -> Set[CheckPluginName]
check_plugin_names = set() # type: Set[CheckPluginName]
try:
check_plugin_names.update(
_snmp_scan(host_config,
on_error=on_error,
do_snmp_scan=do_snmp_scan,
for_inv=for_inventory,
for_mgmt_board=for_mgmt_board))
except Exception as e:
if on_error == "raise":
raise
if on_error == "warn":
console.error("SNMP scan failed: %s\n" % e)
return check_plugin_names
def do_snmptranslate(walk_filename):
# type: (str) -> None
if not walk_filename:
raise MKGeneralException("Please provide the name of a SNMP walk file")
walk_path = "%s/%s" % (cmk.utils.paths.snmpwalks_dir, walk_filename)
if not os.path.exists(walk_path):
raise MKGeneralException("The walk '%s' does not exist" % walk_path)
def translate(lines):
# type: (List[bytes]) -> List[Tuple[bytes, bytes]]
result_lines = []
try:
oids_for_command = []
for line in lines:
oids_for_command.append(line.split(b" ")[0])
command = [
b"snmptranslate", b"-m", b"ALL",
b"-M+%s" % cmk.utils.paths.local_mib_dir
] + oids_for_command
p = subprocess.Popen(command,
stdout=subprocess.PIPE,
stderr=open(os.devnull, "w"),
close_fds=True)
p.wait()
if p.stdout is None:
raise RuntimeError()
output = p.stdout.read()
result = output.split(b"\n")[0::2]
for idx, line in enumerate(result):
result_lines.append((line.strip(), lines[idx].strip()))
except Exception as e:
console.error("%s\n" % e)
return result_lines
# Translate n-oid's per cycle
entries_per_cycle = 500
translated_lines = [] # type: List[Tuple[bytes, bytes]]
walk_lines = open(walk_path).readlines()
console.error("Processing %d lines.\n" % len(walk_lines))
i = 0
while i < len(walk_lines):
console.error("\r%d to go... " % (len(walk_lines) - i))
process_lines = walk_lines[i:i + entries_per_cycle]
# FIXME: This encoding ping-pong os horrible...
translated = translate([six.ensure_binary(pl) for pl in process_lines])
i += len(translated)
translated_lines += translated
console.error("\rfinished. \n")
# Output formatted
for translation, line in translated_lines:
console.output("%s --> %s\n" %
(six.ensure_str(line), six.ensure_str(translation)))
def do_snmpwalk(options, hostnames):
# type: (SNMPWalkOptions, List[HostName]) -> None
if "oids" in options and "extraoids" in options:
raise MKGeneralException("You cannot specify --oid and --extraoid at the same time.")
if not hostnames:
raise MKBailOut("Please specify host names to walk on.")
if not os.path.exists(cmk.utils.paths.snmpwalks_dir):
os.makedirs(cmk.utils.paths.snmpwalks_dir)
for hostname in hostnames:
#TODO: What about SNMP management boards?
snmp_config = create_snmp_host_config(hostname)
try:
_do_snmpwalk_on(snmp_config, options, cmk.utils.paths.snmpwalks_dir + "/" + hostname)
except Exception as e:
console.error("Error walking %s: %s\n" % (hostname, e))
if cmk.utils.debug.enabled():
raise
cmk.base.cleanup.cleanup_globals()
def do_snmptranslate(walk_filename):
if not walk_filename:
raise MKGeneralException("Please provide the name of a SNMP walk file")
walk_path = "%s/%s" % (cmk.utils.paths.snmpwalks_dir, walk_filename)
if not os.path.exists(walk_path):
raise MKGeneralException("The walk '%s' does not exist" % walk_path)
def translate(lines):
result_lines = []
try:
oids_for_command = []
for line in lines:
oids_for_command.append(line.split(" ")[0])
command = [
"snmptranslate", "-m", "ALL",
"-M+%s" % cmk.utils.paths.local_mib_dir
] + oids_for_command
p = subprocess.Popen(command,
stdout=subprocess.PIPE,
stderr=open(os.devnull, "w"),
close_fds=True)
p.wait()
output = p.stdout.read()
result = output.split("\n")[0::2]
for idx, line in enumerate(result):
result_lines.append((line.strip(), lines[idx].strip()))
except Exception as e:
console.error("%s\n" % e)
return result_lines
# Translate n-oid's per cycle
entries_per_cycle = 500
translated_lines = []
walk_lines = open(walk_path).readlines()
console.error("Processing %d lines.\n" % len(walk_lines))
i = 0
while i < len(walk_lines):
console.error("\r%d to go... " % (len(walk_lines) - i))
process_lines = walk_lines[i:i + entries_per_cycle]
translated = translate(process_lines)
i += len(translated)
translated_lines += translated
console.error("\rfinished. \n")
# Output formatted
for translation, line in translated_lines:
console.output("%s --> %s\n" % (line, translation))
def do_restart(core, only_reload=False):
# type: (MonitoringCore, bool) -> None
try:
backup_path = None
if try_get_activation_lock():
# TODO: Replace by MKBailOut()/MKTerminate()?
console.error("Other restart currently in progress. Aborting.\n")
sys.exit(1)
# Save current configuration
if os.path.exists(cmk.utils.paths.nagios_objects_file):
backup_path = cmk.utils.paths.nagios_objects_file + ".save"
console.verbose("Renaming %s to %s\n",
cmk.utils.paths.nagios_objects_file,
backup_path,
stream=sys.stderr)
os.rename(cmk.utils.paths.nagios_objects_file, backup_path)
else:
backup_path = None
try:
core_config.do_create_config(core, with_agents=True)
except Exception as e:
# TODO: Replace by MKBailOut()/MKTerminate()?
console.error("Error creating configuration: %s\n" % e)
if backup_path:
os.rename(backup_path, cmk.utils.paths.nagios_objects_file)
if cmk.utils.debug.enabled():
raise
sys.exit(1)
if config.monitoring_core == "cmc" or cmk.base.nagios_utils.do_check_nagiosconfig(
):
if backup_path:
os.remove(backup_path)
core.precompile()
do_core_action(only_reload and "reload" or "restart")
else:
# TODO: Replace by MKBailOut()/MKTerminate()?
console.error(
"Configuration for monitoring core is invalid. Rolling back.\n"
)
broken_config_path = "%s/check_mk_objects.cfg.broken" % cmk.utils.paths.tmp_dir
open(broken_config_path,
"w").write(open(cmk.utils.paths.nagios_objects_file).read())
console.error(
"The broken file has been copied to \"%s\" for analysis.\n" %
broken_config_path)
if backup_path:
os.rename(backup_path, cmk.utils.paths.nagios_objects_file)
else:
os.remove(cmk.utils.paths.nagios_objects_file)
sys.exit(1)
except Exception as e:
if backup_path:
try:
os.remove(backup_path)
except OSError as oe:
if oe.errno != errno.ENOENT:
raise
if cmk.utils.debug.enabled():
raise
# TODO: Replace by MKBailOut()/MKTerminate()?
console.error("An error occurred: %s\n" % e)
sys.exit(1)
def scan_parents_of(config_cache, hosts, silent=False, settings=None):
if settings is None:
settings = {}
if config.monitoring_host:
nagios_ip = ip_lookup.lookup_ipv4_address(config.monitoring_host)
else:
nagios_ip = None
os.putenv("LANG", "")
os.putenv("LC_ALL", "")
# Start processes in parallel
procs = []
for host in hosts:
console.verbose("%s " % host)
try:
ip = ip_lookup.lookup_ipv4_address(host)
command = [
"traceroute", "-w",
"%d" % settings.get("timeout", 8), "-q",
"%d" % settings.get("probes", 2), "-m",
"%d" % settings.get("max_ttl", 10), "-n", ip
]
console.vverbose("Running '%s'\n" %
subprocess.list2cmdline(command))
procs.append((host, ip,
subprocess.Popen(command,
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
close_fds=True)))
except Exception as e:
if cmk.utils.debug.enabled():
raise
procs.append((host, None, "ERROR: %s" % e))
# Output marks with status of each single scan
def dot(color, dot='o'):
if not silent:
console.output(tty.bold + color + dot + tty.normal)
# Now all run and we begin to read the answers. For each host
# we add a triple to gateways: the gateway, a scan state and a diagnostic output
gateways = []
for host, ip, proc_or_error in procs:
if isinstance(proc_or_error, six.string_types):
lines = [proc_or_error]
exitstatus = 1
else:
exitstatus = proc_or_error.wait()
lines = [l.strip() for l in proc_or_error.stdout.readlines()]
if exitstatus:
dot(tty.red, '*')
gateways.append(
(None, "failed", 0,
"Traceroute failed with exit code %d" % (exitstatus & 255)))
continue
if len(lines) == 1 and lines[0].startswith("ERROR:"):
message = lines[0][6:].strip()
console.verbose("%s: %s\n", host, message, stream=sys.stderr)
dot(tty.red, "D")
gateways.append((None, "dnserror", 0, message))
continue
elif len(lines) == 0:
if cmk.utils.debug.enabled():
raise MKGeneralException(
"Cannot execute %s. Is traceroute installed? Are you root?"
% command)
else:
dot(tty.red, '!')
continue
elif len(lines) < 2:
if not silent:
console.error("%s: %s\n" % (host, ' '.join(lines)))
gateways.append((None, "garbled", 0,
"The output of traceroute seem truncated:\n%s" %
("".join(lines))))
dot(tty.blue)
continue
# Parse output of traceroute:
# traceroute to 8.8.8.8 (8.8.8.8), 30 hops max, 40 byte packets
# 1 * * *
# 2 10.0.0.254 0.417 ms 0.459 ms 0.670 ms
# 3 172.16.0.254 0.967 ms 1.031 ms 1.544 ms
# 4 217.0.116.201 23.118 ms 25.153 ms 26.959 ms
# 5 217.0.76.134 32.103 ms 32.491 ms 32.337 ms
# 6 217.239.41.106 32.856 ms 35.279 ms 36.170 ms
# 7 74.125.50.149 45.068 ms 44.991 ms *
# 8 * 66.249.94.86 41.052 ms 66.249.94.88 40.795 ms
# 9 209.85.248.59 43.739 ms 41.106 ms 216.239.46.240 43.208 ms
# 10 216.239.48.53 45.608 ms 47.121 ms 64.233.174.29 43.126 ms
# 11 209.85.255.245 49.265 ms 40.470 ms 39.870 ms
# 12 8.8.8.8 28.339 ms 28.566 ms 28.791 ms
routes = []
for line in lines[1:]:
parts = line.split()
route = parts[1]
if route.count('.') == 3:
routes.append(route)
elif route == '*':
routes.append(None) # No answer from this router
else:
if not silent:
console.error(
"%s: invalid output line from traceroute: '%s'\n" %
(host, line))
if len(routes) == 0:
error = "incomplete output from traceroute. No routes found."
console.error("%s: %s\n" % (host, error))
gateways.append((None, "garbled", 0, error))
dot(tty.red)
continue
# Only one entry -> host is directly reachable and gets nagios as parent -
# if nagios is not the parent itself. Problem here: How can we determine
# if the host in question is the monitoring host? The user must configure
# this in monitoring_host.
elif len(routes) == 1:
if ip == nagios_ip:
gateways.append(
(None, "root", 0, "")) # We are the root-monitoring host
dot(tty.white, 'N')
elif config.monitoring_host:
gateways.append(((config.monitoring_host, nagios_ip, None),
"direct", 0, ""))
dot(tty.cyan, 'L')
else:
gateways.append((None, "direct", 0, ""))
continue
# Try far most route which is not identical with host itself
ping_probes = settings.get("ping_probes", 5)
skipped_gateways = 0
route = None
for r in routes[::-1]:
if not r or (r == ip):
continue
# Do (optional) PING check in order to determine if that
# gateway can be monitored via the standard host check
if ping_probes:
if not gateway_reachable_via_ping(r, ping_probes):
console.verbose("(not using %s, not reachable)\n",
r,
stream=sys.stderr)
skipped_gateways += 1
continue
route = r
break
if not route:
error = "No usable routing information"
if not silent:
console.error("%s: %s\n" % (host, error))
gateways.append((None, "notfound", 0, error))
dot(tty.blue)
continue
# TTLs already have been filtered out)
gateway_ip = route
gateway = _ip_to_hostname(config_cache, route)
if gateway:
console.verbose("%s(%s) ", gateway, gateway_ip)
else:
console.verbose("%s ", gateway_ip)
# Try to find DNS name of host via reverse DNS lookup
dns_name = _ip_to_dnsname(gateway_ip)
gateways.append(
((gateway, gateway_ip, dns_name), "gateway", skipped_gateways, ""))
dot(tty.green, 'G')
return gateways
