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LSM/Audit: Introduce generic Audit LSM hooks

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Introduce a generic Audit interface for security modules
by adding the following new LSM hooks:

audit_rule_init(field, op, rulestr, lsmrule)
audit_rule_known(krule)
audit_rule_match(secid, field, op, rule, actx)
audit_rule_free(rule)

Those hooks are only available if CONFIG_AUDIT is enabled.

Signed-off-by: Casey Schaufler <[email protected]>
Signed-off-by: Ahmed S. Darwish <[email protected]>
Acked-by: James Morris <[email protected]>
Reviewed-by: Paul Moore <[email protected]>
This commit is contained in:
Ahmed S. Darwish 2008-03-01 22:00:05 +02:00 • committed by James Morris
commit 03d37d25e0
3 changed files with 127 additions and 1 deletions
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31
security/dummy.c
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@ -993,6 +993,30 @@ static inline int dummy_key_permission(key_ref_t key_ref,
}
#endif /* CONFIG_KEYS */
#ifdef CONFIG_AUDIT
static inline int dummy_audit_rule_init(u32 field, u32 op, char *rulestr,
void **lsmrule)
{
return 0;
}
static inline int dummy_audit_rule_known(struct audit_krule *krule)
{
return 0;
}
static inline int dummy_audit_rule_match(u32 secid, u32 field, u32 op,
void *lsmrule,
struct audit_context *actx)
{
return 0;
}
static inline void dummy_audit_rule_free(void *lsmrule)
{ }
#endif /* CONFIG_AUDIT */
struct security_operations dummy_security_ops;
#define set_to_dummy_if_null(ops, function) \
@ -1182,6 +1206,11 @@ void security_fixup_ops (struct security_operations *ops)
set_to_dummy_if_null(ops, key_free);
set_to_dummy_if_null(ops, key_permission);
#endif /* CONFIG_KEYS */
#ifdef CONFIG_AUDIT
set_to_dummy_if_null(ops, audit_rule_init);
set_to_dummy_if_null(ops, audit_rule_known);
set_to_dummy_if_null(ops, audit_rule_match);
set_to_dummy_if_null(ops, audit_rule_free);
#endif
}