better handling of raw_address length

source/cmk_addons_plugins/inv_ip_address/agent_based/inv_ip_addresses.py

@@ -23,7 +23,9 @@
 #             added support for ipv6z address type
 #             fixed duplicate ip information in section
 #             added host label nvdct/l3v6_topology:host and nvdct/l3v6_topology:router
-# 2024-12-14: fixed crash if raw_ip_address is longer than raw_length (fortinet_2), ends with interface index
+# 2024-12-14: fixed crash if raw_address is longer than raw_length (fortinet_2), ends with interface index
+#             better handling of raw_address length
+#             fixed crash in IBM raw_address format (dec_ip_address index out of range)
 
 from collections.abc import Mapping, MutableSequence, Sequence
 from ipaddress import AddressValueError, NetmaskValueError, ip_interface
@@ -151,22 +153,22 @@ def parse_inv_ip_addresses(string_table: List[StringByteTable]) -> Section:
         raw_type, raw_length, raw_address = raw_ip.groups()
 
         if dec_ip_address:
-            raw_address = '.'.join(str(dec_ip_address[x]) for x in range(0, int(raw_length) - 1))
+            raw_address = '.'.join(str(x) for x in dec_ip_address)
             raw_length = str(len(dec_ip_address))
 
         match raw_type:
             case '1':  # IPv4 address
                 if raw_length == '4':
-                    raw_address = '.'.join(x for x in raw_address.split('.')[0: int(raw_length)])
+                    raw_address = '.'.join(x for x in raw_address.split('.')[0:4])
                 if raw_length == '15':
                     raw_address = ''.join([chr(int(x)) for x in raw_address.split('.')])
                     raw_address = '.'.join([str(int(x)) for x in raw_address.split('.')])
             case '2':  # IPv6 address
                 match raw_length:
                     case '16':
-                        raw_address = [f'{int(x):02x}' for x in raw_address.split('.')[0: int(raw_length)]]
+                        raw_address = [f'{int(x):02x}' for x in raw_address.split('.')[0:16]]
                         raw_address = ':'.join(
-                            [''.join([raw_address[i], raw_address[i + 1]]) for i in range(0, len(raw_address), 2)]
+                            [''.join([raw_address[i], raw_address[i + 1]]) for i in range(0, 16, 2)]
                         )
                     case '39':
                         raw_address = ''.join([chr(int(x)) for x in raw_address.split('.')])
@@ -182,7 +184,7 @@ def parse_inv_ip_addresses(string_table: List[StringByteTable]) -> Section:
                         raw_address = [f'{int(x):02x}' for x in raw_address.split('.')]
                         scope_id = '.'.join(raw_address[16:])
                         raw_address = ':'.join(
-                            [''.join([raw_address[i], raw_address[i + 1]]) for i in range(0, len(raw_address) - 4, 2)]
+                            [''.join([raw_address[i], raw_address[i + 1]]) for i in range(0, 16, 2)]
                         )
                         raw_address += f'%{scope_id}'
             case _: