projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| fe8ab488 | 1 | /* |
| f427ee49 | 2 | * Copyright (c) 2019 Apple Computer, Inc. All rights reserved. |
| 5ba3f43e A |
3 | * |
| 4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ | |
| 5 | * | |
| 6 | * This file contains Original Code and/or Modifications of Original Code | |
| 7 | * as defined in and that are subject to the Apple Public Source License | |
| 8 | * Version 2.0 (the 'License'). You may not use this file except in | |
| 9 | * compliance with the License. The rights granted to you under the License | |
| 10 | * may not be used to create, or enable the creation or redistribution of, | |
| 11 | * unlawful or unlicensed copies of an Apple operating system, or to | |
| 12 | * circumvent, violate, or enable the circumvention or violation of, any | |
| 13 | * terms of an Apple operating system software license agreement. | |
| 14 | * | |
| 15 | * Please obtain a copy of the License at | |
| 16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. | |
| 17 | * | |
| 18 | * The Original Code and all software distributed under the License are | |
| 19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
| 21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | |
| 23 | * Please see the License for the specific language governing rights and | |
| 24 | * limitations under the License. | |
| 25 | * | |
| 26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ | |
| fe8ab488 | 27 | */ |
| f427ee49 A |
28 | #include <darwintest.h> |
| 29 | #include <pthread.h> | |
| 30 | #include <ptrauth.h> | |
| 31 | #include <mach/machine/thread_state.h> | |
| 32 | #include <sys/types.h> | |
| 33 | #include <sys/sysctl.h> | |
| 34 | #include "exc_helpers.h" | |
| fe8ab488 | 35 | |
| f427ee49 A |
36 | T_GLOBAL_META( |
| 37 | T_META_NAMESPACE("xnu.arm"), | |
| 38 | T_META_RUN_CONCURRENTLY(true) | |
| 39 | ); | |
| fe8ab488 | 40 | |
| f427ee49 A |
41 | |
| 42 | T_DECL(thread_set_state_corrupted_pc, | |
| 43 | "Test that ptrauth failures in thread_set_state() poison the respective register.") | |
| 0a7de745 | 44 | { |
| 2a1bd2d3 | 45 | #if !__arm64e__ |
| f427ee49 | 46 | T_SKIP("Running on non-arm64e target, skipping..."); |
| 2a1bd2d3 A |
47 | #else |
| 48 | mach_port_t thread; | |
| 49 | kern_return_t err = thread_create(mach_task_self(), &thread); | |
| 50 | T_QUIET; T_ASSERT_EQ(err, KERN_SUCCESS, "Created thread"); | |
| 51 | ||
| 52 | arm_thread_state64_t state; | |
| 53 | mach_msg_type_number_t count = ARM_THREAD_STATE64_COUNT; | |
| 54 | err = thread_get_state(mach_thread_self(), ARM_THREAD_STATE64, (thread_state_t)&state, &count); | |
| 55 | T_QUIET; T_ASSERT_EQ(err, KERN_SUCCESS, "Got own thread state"); | |
| 56 | ||
| 57 | void *corrupted_pc = (void *)((uintptr_t)state.__opaque_pc ^ 0x4); | |
| 58 | state.__opaque_pc = corrupted_pc; | |
| 59 | err = thread_set_state(thread, ARM_THREAD_STATE64, (thread_state_t)&state, count); | |
| 60 | T_QUIET; T_ASSERT_EQ(err, KERN_SUCCESS, "Set child thread's PC to a corrupted pointer"); | |
| 61 | ||
| 62 | err = thread_get_state(thread, ARM_THREAD_STATE64, (thread_state_t)&state, &count); | |
| 63 | T_QUIET; T_ASSERT_EQ(err, KERN_SUCCESS, "Got child's thread state"); | |
| 64 | T_EXPECT_NE(state.__opaque_pc, corrupted_pc, "thread_set_state() with a corrupted PC should poison the PC value"); | |
| 65 | ||
| 66 | err = thread_terminate(thread); | |
| 67 | T_QUIET; T_EXPECT_EQ(err, KERN_SUCCESS, "Terminated thread"); | |
| 68 | #endif // __arm64e__ | |
| fe8ab488 | 69 | } |
| f427ee49 | 70 |