This is xnu-11215.1.10. See this file in:
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#pragma once

#include <os/base.h>
#include <stdbool.h>
#include <stdint.h>
#include <kern/cpc.h>

__enum_closed_decl(cpc_event_policy_t, unsigned int, {
	CPC_EVPOL_DENY_ALL = 0,
	CPC_EVPOL_ALLOW_ALL,
	CPC_EVPOL_RESTRICT_TO_KNOWN,
#if CPC_INSECURE
	CPC_EVPOL_DEFAULT = CPC_EVPOL_ALLOW_ALL,
#else // CPC_INSECURE
	CPC_EVPOL_DEFAULT = CPC_EVPOL_RESTRICT_TO_KNOWN,
#endif // !CPC_INSECURE
});

cpc_event_policy_t cpc_get_event_policy(void);

/// Change how event restrictions are applied.
///
/// - Parameters:
///   - new_policy: The event policy to start applying indefinitely.
void cpc_set_event_policy(cpc_event_policy_t new_policy);