ausearch_add_item

AUSEARCH_ADD_ITEM(3)            Linux Audit API           AUSEARCH_ADD_ITEM(3)



NAME
       ausearch_add_item - build up search rule

SYNOPSIS
       #include <auparse.h>

       int ausearch_add_item(auparse_state_t *au, const char *field, const
       char *op, const char *value, ausearch_rule_t how);


DESCRIPTION
       ausearch_add_item adds one search condition to the current audit search
       expression. The search conditions can then be used to scan logs, files,
       or buffers for something of interest. The field value is the field name
       that the value will be checked for. The op variable describes what kind
       of check is to be done. Legal op values are:


              exists
                      just check that a field name exists

              =
                      locate the field name and check that the value
                     associated with it is equal to the value given in this
                     rule.

              !=
                      locate the field name and check that the value
                     associated with it is NOT equal to the value given in
                     this rule.

       The value parameter is compared to the uninterpreted field value. If
       you are trying to match against a field who's type is
       AUPARSE_TYPE_ESCAPED, you will want to use the
       ausearch_add_interpreted_item() function instead.

       The how value determines how this search condition will affect the
       existing search expression if one is already defined. The possible
       values are:

              AUSEARCH_RULE_CLEAR
                     Clear the current search expression, if any, and use only
                     this search condition.

              AUSEARCH_RULE_OR
                     If a search expression E is already configured, replace
                     it by (E || this_search_condition).

              AUSEARCH_RULE_AND
                     If a search expression E is already configured, replace
                     it by (E && this_search_condition).


RETURN VALUE
       Returns -1 if an error occurs; otherwise, 0 for success.


SEE ALSO
       ausearch_add_expression(3), ausearch_add_interpreted_item(3),
       ausearch_add_timestamp_item(3), ausearch_add_regex(3),
       ausearch_set_stop(3), ausearch_clear(3), ausearch_next_event(3),
       ausearch-expression(5).


AUTHOR
       Steve Grubb



Red Hat                            Feb 2012               AUSEARCH_ADD_ITEM(3)