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audit: add audit_backlog_wait_time configuration option

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reaahead-collector abuses the audit logging facility to discover which files
are accessed at boot time to make a pre-load list

Add a tuning option to audit_backlog_wait_time so that if auditd can't keep up,
or gets blocked, the callers won't be blocked.

Bump audit_status API version to "2".

Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
This commit is contained in:
Richard Guy Briggs
2013-09-18 11:55:12 -04:00
committed by Eric Paris
parent 09f883a902
commit 51cc83f024
2 changed files with 31 additions and 2 deletions
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2
include/uapi/linux/audit.h
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@@ -319,6 +319,7 @@ enum {
#define AUDIT_STATUS_PID 0x0004
#define AUDIT_STATUS_RATE_LIMIT 0x0008
#define AUDIT_STATUS_BACKLOG_LIMIT 0x0010
#define AUDIT_STATUS_BACKLOG_WAIT_TIME 0x0020
/* Failure-to-log actions */
#define AUDIT_FAIL_SILENT 0
#define AUDIT_FAIL_PRINTK 1
@@ -377,6 +378,7 @@ struct audit_status {
__u32 lost; /* messages lost */
__u32 backlog; /* messages waiting in queue */
__u32 version; /* audit api version number */
__u32 backlog_wait_time;/* message queue wait timeout */
};
struct audit_features {