Change log for IBM_AS400

Date Changes
2025-03-28 Enhancement:
- event.idm.read_only_udm.additional.fields: Newly mapped `process` raw log field with `event.idm.read_only_udm.additional.fields` UDM field.
- event.idm.read_only_udm.additional.fields: Newly mapped `event_info` raw log field with `event.idm.read_only_udm.additional.fields` UDM field.
- event.idm.read_only_udm.additional.fields: Newly mapped `log_event` raw log field with `event.idm.read_only_udm.additional.fields` UDM field.
- event.idm.read_only_udm.metadata.product_event_type: Newly mapped `event_type` raw log field with `event.idm.read_only_udm.metadata.product_event_type` UDM field.
- event.idm.read_only_udm.severity: Newly mapped `sev` raw log field with `event.idm.read_only_udm.severity` UDM field.
- event.idm.read_only_udm.additional.fields: Newly mapped `access_type` raw log field with `event.idm.read_only_udm.additional.fields` UDM field.
- event.idm.read_only_udm.additional.fields: Newly mapped `actual_type` raw log field with `event.idm.read_only_udm.additional.fields` UDM field.
- event.idm.read_only_udm.additional.fields: Newly mapped `jrn_seq` raw log field with `event.idm.read_only_udm.additional.fields` UDM field.
- event.idm.read_only_udm.additional.fields: Newly mapped `job_name` raw log field with `event.idm.read_only_udm.additional.fields` UDM field.
- event.idm.read_only_udm.principal.user.userid: Newly mapped `user_name` raw log field with `event.idm.read_only_udm.principal.user.userid` UDM field.
- event.idm.read_only_udm.additional.fields: Newly mapped `job_number` raw log field with `event.idm.read_only_udm.additional.fields` UDM field.
- event.idm.read_only_udm.additional.fields: Newly mapped `eff_user` raw log field with `event.idm.read_only_udm.additional.fields` UDM field.
- event.idm.read_only_udm.additional.fields: Newly mapped `logical_partition` raw log field with `event.idm.read_only_udm.additional.fields` UDM field.
- event.idm.read_only_udm.additional.fields: Newly mapped `auth_user` raw log field with `event.idm.read_only_udm.additional.fields` UDM field.
- event.idm.read_only_udm.additional.fields: Newly mapped `cmd_type` raw log field with `event.idm.read_only_udm.additional.fields` UDM field.
- event.idm.read_only_udm.additional.fields: Newly mapped `object` raw log field with `event.idm.read_only_udm.additional.fields` UDM field.
- event.idm.read_only_udm.additional.fields: Newly mapped `object_library` raw log field with `event.idm.read_only_udm.additional.fields` UDM field.
- event.idm.read_only_udm.additional.fields: Newly mapped `object_type` raw log field with `event.idm.read_only_udm.additional.fields` UDM field.
- event.idm.read_only_udm.additional.fields: Newly mapped `ifs_path` raw log field with `event.idm.read_only_udm.additional.fields` UDM field.
- event.idm.read_only_udm.additional.fields: Newly mapped `specific_data` raw log field with `event.idm.read_only_udm.additional.fields` UDM field.
- event.idm.read_only_udm.principal.ip and event.idm.read_only_udm.principal.asset.ip: Newly mapped `ip_addr` raw log field with `event.idm.read_only_udm.principal.ip` and `event.idm.read_only_udm.principal.asset.ip` UDM field.
- event.idm.read_only_udm.principal.port: Newly mapped `port` raw log field with `event.idm.read_only_udm.principal.port` UDM field.
- event.idm.read_only_udm.additional.fields: Newly mapped `action` raw log field with `event.idm.read_only_udm.additional.fields` UDM field.
- event.idm.read_only_udm.additional.fields: Newly mapped `val_job` raw log field with `event.idm.read_only_udm.additional.fields` UDM field.
- event.idm.read_only_udm.additional.fields: Newly mapped `val_user` raw log field with `event.idm.read_only_udm.additional.fields` UDM field.
- event.idm.read_only_udm.additional.fields: Newly mapped `val_jobno` raw log field with `event.idm.read_only_udm.additional.fields` UDM field.
- event.idm.read_only_udm.additional.fields: Newly mapped `pgm_name` raw log field with `event.idm.read_only_udm.additional.fields` UDM field.
- event.idm.read_only_udm.additional.fields: Newly mapped `pgm_libr` raw log field with `event.idm.read_only_udm.additional.fields` UDM field.
- event.idm.read_only_udm.additional.fields: Newly mapped `workstation` raw log field with `event.idm.read_only_udm.additional.fields` UDM field.
- event.idm.read_only_udm.additional.fields: Newly mapped `causing_user` raw log field with `event.idm.read_only_udm.additional.fields` UDM field.
- event.idm.read_only_udm.additional.fields: Newly mapped `field` raw log field with `event.idm.read_only_udm.additional.fields` UDM field.
- event.idm.read_only_udm.additional.fields: Newly mapped `op_violation` raw log field with `event.idm.read_only_udm.additional.fields` UDM field.
- Added a conditional null check for `device_vendor` before mapping it to `event.idm.read_only_udm.metadata.vendor_name` UDM field.
2024-05-24 Enhancement:
- Added support for CEF format logs.
2024-04-16 Enhancement:
- Added a Grok pattern to parse SYSLOG + JSON logs.
- Mapped all new JSON fields to corresponding udm.
2022-04-13 Newly created parser.