def walk(
self,
oid: OID,
section_name: Optional[SectionName] = None,
table_base_oid: Optional[OID] = None,
context_name: Optional[SNMPContextName] = None,
) -> SNMPRowInfo:
if oid.startswith("."):
oid = oid[1:]
if oid.endswith(".*"):
oid_prefix = oid[:-2]
dot_star = True
else:
oid_prefix = oid
dot_star = False
host_cache = snmp_cache.host_cache()
try:
lines = host_cache[self.config.hostname]
except KeyError:
path = cmk.utils.paths.snmpwalks_dir + "/" + self.config.hostname
console.vverbose(" Loading %s from %s\n" % (oid, path))
try:
lines = StoredWalkSNMPBackend.read_walk_data(path)
except IOError:
raise MKSNMPError("No snmpwalk file %s" % path)
host_cache[self.config.hostname] = lines
begin = 0
end = len(lines)
hit = None
while end - begin > 0:
current = (begin + end) // 2
parts = lines[current].split(None, 1)
comp = parts[0]
hit = StoredWalkSNMPBackend._compare_oids(oid_prefix, comp)
if hit == 0:
break
if hit == 1: # we are too low
begin = current + 1
else:
end = current
if hit != 0:
return [] # not found
rowinfo = StoredWalkSNMPBackend._collect_until(oid, oid_prefix, lines,
current, -1)
rowinfo.reverse()
rowinfo += StoredWalkSNMPBackend._collect_until(
oid, oid_prefix, lines, current + 1, 1)
if dot_star:
return [rowinfo[0]]
return rowinfo
def walk(self,
oid: OID,
check_plugin_name: Optional[CheckPluginNameStr] = None,
table_base_oid: Optional[OID] = None,
context_name: Optional[SNMPContextName] = None) -> SNMPRowInfo:
if oid.startswith("."):
oid = oid[1:]
if oid.endswith(".*"):
oid_prefix = oid[:-2]
dot_star = True
else:
oid_prefix = oid
dot_star = False
if snmp_cache.host_cache_contains(self.config.hostname):
lines = snmp_cache.host_cache_get(self.config.hostname)
else:
path = cmk.utils.paths.snmpwalks_dir + "/" + self.config.hostname
console.vverbose(" Loading %s from %s\n" % (oid, path))
try:
lines = open(path).readlines()
except IOError:
raise MKSNMPError("No snmpwalk file %s" % path)
snmp_cache.host_cache_set(self.config.hostname, lines)
begin = 0
end = len(lines)
hit = None
while end - begin > 0:
current = (begin + end) // 2
# skip over values including newlines to the next oid
while not lines[current].startswith(".") and current < end:
current += 1
parts = lines[current].split(None, 1)
comp = parts[0]
hit = StoredWalkSNMPBackend._compare_oids(oid_prefix, comp)
if hit == 0:
break
if hit == 1: # we are too low
begin = current + 1
else:
end = current
if hit != 0:
return [] # not found
rowinfo = StoredWalkSNMPBackend._collect_until(oid, oid_prefix, lines,
current, -1)
rowinfo.reverse()
rowinfo += StoredWalkSNMPBackend._collect_until(
oid, oid_prefix, lines, current + 1, 1)
if dot_star:
return [rowinfo[0]]
return rowinfo
