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audit: audit feature to set loginuid immutable

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This adds a new 'audit_feature' bit which allows userspace to set it
such that the loginuid is absolutely immutable, even if you have
CAP_AUDIT_CONTROL.

Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
This commit is contained in:
Eric Paris 2013-05-23 14:26:00 -04:00
commit 21b85c31d2
3 changed files with 7 additions and 2 deletions
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3
include/uapi/linux/audit.h
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@ -387,7 +387,8 @@ struct audit_features {
};
#define AUDIT_FEATURE_ONLY_UNSET_LOGINUID 0
#define AUDIT_LAST_FEATURE AUDIT_FEATURE_ONLY_UNSET_LOGINUID
#define AUDIT_FEATURE_LOGINUID_IMMUTABLE 1
#define AUDIT_LAST_FEATURE AUDIT_FEATURE_LOGINUID_IMMUTABLE
#define audit_feature_valid(x) ((x) >= 0 && (x) <= AUDIT_LAST_FEATURE)
#define AUDIT_FEATURE_TO_MASK(x) (1 << ((x) & 31)) /* mask for __u32 */