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/* * Copyright (c) 2025 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@ */ #ifndef TEST_ERM_SYSCTL_COMMON__H #define TEST_ERM_SYSCTL_COMMON__H #include <sys/code_signing.h> #include <stdlib.h> #include <stdbool.h> #include <System/machine/cpu_capabilities.h> #define ERM_SYSCTL_NAME "user.extended_research_mode_config" // only true iOS platform supports ERM #define PLATFORM_SUPPORTS_ERM (TARGET_OS_IOS && !TARGET_OS_VISION) // simple raw data containing zeroes (to check it is not considered as string) static const size_t sample_config_len = 8; static const char sample_config[sample_config_len] = {0, 1, 2, 3, 0, 4, 5, 6}; bool is_txm_active() { code_signing_monitor_type_t cs_monitor = CS_MONITOR_TYPE_NONE; code_signing_config_t cs_config = 0; size_t cs_monitor_size = sizeof(cs_monitor); size_t cs_config_size = sizeof(cs_config); sysctlbyname("security.codesigning.monitor", &cs_monitor, &cs_monitor_size, NULL, 0); sysctlbyname("security.codesigning.config", &cs_config, &cs_config_size, NULL, 0); return (cs_monitor == CS_MONITOR_TYPE_TXM) && (cs_config & CS_CONFIG_CSM_ENABLED); } bool is_ERM_active() { #if defined(_COMM_PAGE_SECURITY_RESEARCH_DEVICE_ERM_ACTIVE) && !__has_feature(address_sanitizer) return (is_txm_active()) && ((*(uint8_t *)(void *)_COMM_PAGE_SECURITY_RESEARCH_DEVICE_ERM_ACTIVE) != 0); #else return false; #endif } #endif |