audit_add_rule_data - Linux

Overview

audit_add_rule_data is a Linux command used to add data to a rule for the kernel’s audit subsystem. This data can configure how the rule is applied and what actions the system will take if a violation is detected.

Syntax

audit_add_rule_data -R <rule> -d <data>

Options/Flags

• -R : Specifies the rule to which the data will be added. The rule can be identified by its name or number.
• -d : Specifies the data to be added to the rule. The data can be any valid key-value pair. Common examples include:
  • action: Specifies the action to be taken when a violation is detected. Valid actions include never, audit, always, and ignore.
  • field: Specifies the field on which the rule will be applied. Valid fields include various system properties, such as uid, path, and execve.
  • op: Specifies the operator to be used when comparing the field with the value. Valid operators include =, !=, >, >=, <, and <=.
  • value: Specifies the value to be compared with the field.

Examples

1. Add an action to a rule:

   audit_add_rule_data -R my_rule -d action=always
   

2. Modify the field and operator for a rule:

   audit_add_rule_data -R my_rule -d field=path op=> value=/bin/*
   

Common Issues

• Rule not found: Ensure that the rule specified in -R exists in the audit configuration.
• Invalid data: Verify that the data provided in -d is in the correct format and contains valid values.
• Permission denied: The command must be run with elevated privileges (e.g., as root).

Integration

audit_add_rule_data can be used in conjunction with other audit-related commands:

• auditctl: To manage audit rules and view the current audit configuration.
• ausearch: To search audit logs for events that match a specific rule.

Related Commands

• auditctl
• ausearch