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audit: remove unused actx param from audit_rule_match

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The audit_rule_match() struct audit_context *actx parameter is not used
by any in-tree consumers (selinux, apparmour, integrity, smack).

The audit context is an internal audit structure that should only be
accessed by audit accessor functions.

It was part of commit 03d37d25e0 ("LSM/Audit: Introduce generic
Audit LSM hooks") but appears to have never been used.

Remove it.

Please see the github issue
https://github.com/linux-audit/audit-kernel/issues/107

Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
[PM: fixed the referenced commit title]
Signed-off-by: Paul Moore <paul@paul-moore.com>
This commit is contained in:
Richard Guy Briggs 2019-01-31 11:52:11 -05:00 • committed by Paul Moore
parent 57d4657716
commit 90462a5bd3
12 changed files with 26 additions and 38 deletions
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4
include/linux/lsm_hooks.h
View file

@ -1344,7 +1344,6 @@
* @field contains the field which relates to current LSM.
* @op contains the operator that will be used for matching.
* @rule points to the audit rule that will be checked against.
* @actx points to the audit context associated with the check.
* Return 1 if secid matches the rule, 0 if it does not, -ERRNO on failure.
*
* @audit_rule_free:
@ -1764,8 +1763,7 @@ union security_list_options {
int (*audit_rule_init)(u32 field, u32 op, char *rulestr,
void **lsmrule);
int (*audit_rule_known)(struct audit_krule *krule);
int (*audit_rule_match)(u32 secid, u32 field, u32 op, void *lsmrule,
struct audit_context *actx);
int (*audit_rule_match)(u32 secid, u32 field, u32 op, void *lsmrule);
void (*audit_rule_free)(void *lsmrule);
#endif /* CONFIG_AUDIT */