/*
* Copyright (c) 2022 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
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*
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
#define REF 1
#define CREF 2
#define PTR 3
#define BPTR 4
#if defined(__CCT_TEST_ENABLED)
#define __CCT_ENABLE_USER_SPACE
#endif
#include <sys/constrained_ctypes.h>
#include <darwintest.h>
#include <string.h>
#include <unistd.h>
T_GLOBAL_META(
T_META_RADAR_COMPONENT_NAME("xnu"),
T_META_RADAR_COMPONENT_VERSION("networking"),
T_META_RUN_CONCURRENTLY(TRUE));
/*
* Verify that `int_ref_t' and `int_ref_ref_t'
* behave as expected, under different combinations
* of the CCT being enabled / enacted
*/
#if defined(__CCT_TEST_ENABLED) && defined(__CCT_TEST_ENACTED)
/*
* When the CCT are enabled in the user space,
* __CCT_DECLARE_CONSTRAINED_PTR_TYPES(int, int) should
* define the types `int_ref_t' and `int_ref_ref_t'.
*
* If the CCT are enacted in addition to being enabled,
* the test code itself has to adhere to the type
* constraints.
*/
__CCT_DECLARE_CONSTRAINED_PTR_TYPES(int, int);
T_DECL(enacted_constrained_types_are_size_compatible_with_plain_types, "rdar://101223528")
{
T_ASSERT_EQ(sizeof(int_ref_t), sizeof(int*), NULL);
T_ASSERT_EQ(sizeof(int_ref_ref_t), sizeof(int **), NULL);
}
T_DECL(enacted_constrained_types_are_assignable_from_plain_types, "rdar://101223528")
{
int s = 1;
T_ASSERT_EQ(s, 1, NULL);
int * ps __single = &s;
int_ref_t rs = ps;
T_ASSERT_EQ(*rs, 1, NULL);
int * * pps = &ps;
int_ref_ref_t rrs = pps;
T_ASSERT_EQ(**rrs, 1, NULL);
}
#elif defined(__CCT_TEST_ENABLED) && !defined(__CCT_TEST_ENACTED)
/*
* When the CCT are enabled in the user space,
* __CCT_DECLARE_CONSTRAINED_PTR_TYPES(int, int) should
* define the types `int_ref_t' and `int_ref_ref_t'.
*
* When CCT are not enacted, the test code itself does not have to adhere
* to the type constraints.
*/
__CCT_DECLARE_CONSTRAINED_PTR_TYPES(int, int);
T_DECL(enabled_constrained_types_are_size_compatible_with_plain_types, "rdar://101223528")
{
T_ASSERT_EQ(sizeof(int_ref_t), sizeof(int*), NULL);
T_ASSERT_EQ(sizeof(int_ref_ref_t), sizeof(int **), NULL);
}
/*
* When CCT are not enacted, the test code itself does not have to adhere
* to the type constraints.
*/
T_DECL(enabled_constrained_types_are_assignable_from_plain_types, "rdar://101223528")
{
int s = 1;
T_ASSERT_EQ(s, 1, NULL);
int * ps __single = &s;
int_ref_t rs = ps;
T_ASSERT_EQ(*rs, 1, NULL);
int * * pps = &ps;
int_ref_ref_t rrs = pps;
T_ASSERT_EQ(**rrs, 1, NULL);
}
#else /* !defined(__CCT_TEST_ENABLED) && !defined(__CCT_TEST_ENACTED) */
/*
* When the CCT are disabled in the user space,
* attempt to define `int_ref_t' and `int_ref_ref_t'
* should be a no-op, and the subsequent redefintion
* of `int_ref_t' and `int_ref_ref_t' should succeed.
*/
__CCT_DECLARE_CONSTRAINED_PTR_TYPES(int, int);
typedef int * int_ref_t;
typedef int * * int_ref_ref_t;
T_DECL(disabled_constrained_types_decay_into_plain_types, "rdar://101223528")
{
int s = 1;
T_ASSERT_EQ(s, 1, NULL);
int_ref_t rs = &s;
T_ASSERT_EQ(*rs, 1, NULL);
int_ref_ref_t rrs = &rs;
T_ASSERT_EQ(**rrs, 1, NULL);
}
#endif /* !defined(__CCT_TEST_ENABLED) && !defined(__CCT_TEST_ENACTED) */