// Copyright (c) 2023 Apple Inc. All rights reserved. // // @APPLE_OSREFERENCE_LICENSE_HEADER_START@ // // This file contains Original Code and/or Modifications of Original Code // as defined in and that are subject to the Apple Public Source License // Version 2.0 (the 'License'). You may not use this file except in // compliance with the License. The rights granted to you under the License // may not be used to create, or enable the creation or redistribution of, // unlawful or unlicensed copies of an Apple operating system, or to // circumvent, violate, or enable the circumvention or violation of, any // terms of an Apple operating system software license agreement. // // Please obtain a copy of the License at // http://www.opensource.apple.com/apsl/ and read it before using this file. // // The Original Code and all software distributed under the License are // distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER // EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, // INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. // Please see the License for the specific language governing rights and // limitations under the License. // // @APPLE_OSREFERENCE_LICENSE_HEADER_END@ #include #include #if __arm64__ #include #endif // __arm64__ bool cpc_is_secure(void) { #if __arm64__ cpc_event_policy_t policy = cpc_get_event_policy(); return policy == CPC_EVPOL_RESTRICT_TO_KNOWN || policy == CPC_EVPOL_DENY_ALL; #else // __arm64__ return false; #endif // !__arm64__ } #if CPC_INSECURE void cpc_change_security(bool enforce_security) { #if __arm64__ cpc_set_event_policy(enforce_security ? CPC_EVPOL_RESTRICT_TO_KNOWN : CPC_EVPOL_DEFAULT); #else // __arm64__ #pragma unused(enforce_security) // Intel has no event policy or other security features. #endif // !__arm64__ } #endif // CPC_INSECURE