/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* SELinux support for the Audit LSM hooks
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*
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* Author: James Morris <jmorris@redhat.com>
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*
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* Copyright (C) 2005 Red Hat, Inc., James Morris <jmorris@redhat.com>
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* Copyright (C) 2006 Trusted Computer Solutions, Inc. <dgoeddel@trustedcs.com>
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* Copyright (C) 2006 IBM Corporation, Timothy R. Chavez <tinytim@us.ibm.com>
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*/
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#ifndef _SELINUX_AUDIT_H
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#define _SELINUX_AUDIT_H
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/**
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* selinux_audit_rule_init - alloc/init an selinux audit rule structure.
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* @field: the field this rule refers to
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* @op: the operater the rule uses
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* @rulestr: the text "target" of the rule
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* @rule: pointer to the new rule structure returned via this
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*
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* Returns 0 if successful, -errno if not. On success, the rule structure
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* will be allocated internally. The caller must free this structure with
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* selinux_audit_rule_free() after use.
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*/
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int selinux_audit_rule_init(u32 field, u32 op, char *rulestr, void **rule);
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/**
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* selinux_audit_rule_free - free an selinux audit rule structure.
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* @rule: pointer to the audit rule to be freed
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*
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* This will free all memory associated with the given rule.
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* If @rule is NULL, no operation is performed.
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*/
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void selinux_audit_rule_free(void *rule);
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/**
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* selinux_audit_rule_match - determine if a context ID matches a rule.
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* @sid: the context ID to check
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* @field: the field this rule refers to
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* @op: the operater the rule uses
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* @rule: pointer to the audit rule to check against
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*
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* Returns 1 if the context id matches the rule, 0 if it does not, and
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* -errno on failure.
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*/
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int selinux_audit_rule_match(u32 sid, u32 field, u32 op, void *rule);
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/**
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* selinux_audit_rule_known - check to see if rule contains selinux fields.
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* @rule: rule to be checked
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* Returns 1 if there are selinux fields specified in the rule, 0 otherwise.
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*/
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int selinux_audit_rule_known(struct audit_krule *krule);
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#endif /* _SELINUX_AUDIT_H */
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