Function audit_init

freebsd/security/audit/audit.c:334–387

* Initialize the Audit subsystem: configuration state, work queue, * synchronization primitives, worker thread, and trigger device node. Also * call into the BSM assembly code to initialize it. */

 * call into the BSM assembly code to initialize it.
 */
static void
audit_init(void)
{

	audit_trail_enabled = 0;
	audit_trail_suspended = 0;
	audit_syscalls_enabled = false;
	audit_panic_on_write_fail = 0;
	audit_fail_stop = 0;
	audit_in_failure = 0;
	audit_argv = 0;
	audit_arge = 0;

	audit_fstat.af_filesz = 0;	/* '0' means unset, unbounded. */
	audit_fstat.af_currsz = 0;
	audit_nae_mask.am_success = 0;
	audit_nae_mask.am_failure = 0;

	TAILQ_INIT(&audit_q);
	audit_q_len = 0;
	audit_pre_q_len = 0;
	audit_qctrl.aq_hiwater = AQ_HIWATER;
	audit_qctrl.aq_lowater = AQ_LOWATER;
	audit_qctrl.aq_bufsz = AQ_BUFSZ;
	audit_qctrl.aq_minfree = AU_FS_MINFREE;

	audit_kinfo.ai_termid.at_type = AU_IPv4;
	audit_kinfo.ai_termid.at_addr[0] = INADDR_ANY;

	mtx_init(&audit_mtx, "audit_mtx", NULL, MTX_DEF);
	KINFO_LOCK_INIT();
	cv_init(&audit_worker_cv, "audit_worker_cv");
	cv_init(&audit_watermark_cv, "audit_watermark_cv");
	cv_init(&audit_fail_cv, "audit_fail_cv");

	audit_record_zone = uma_zcreate("audit_record",
	    sizeof(struct kaudit_record), audit_record_ctor,
	    audit_record_dtor, NULL, NULL, UMA_ALIGN_PTR, 0);

	/* First initialisation of audit_syscalls_enabled. */
	audit_syscalls_enabled_update();

	/* Initialize the BSM audit subsystem. */
	kau_init();

	audit_trigger_init();

	/* Register shutdown handler. */
	EVENTHANDLER_REGISTER(shutdown_pre_sync, audit_shutdown, NULL,
	    SHUTDOWN_PRI_FIRST);

	/* Start audit worker thread. */
	audit_worker_init();
}

SYSINIT(audit_init, SI_SUB_AUDIT, SI_ORDER_FIRST, audit_init, NULL);