1 /* 2 * Copyright (c) 2024 Apple Inc. All rights reserved. 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@ 27 */ 28 29 #include <sys/types.h> 30 #include <sys/sysctl.h> 31 #include <darwintest.h> 32 33 T_DECL(tcp_cache_fill, "Fills the entire tcp_cache hash table") 34 { 35 int ret, value = 0; 36 size_t len = sizeof(value); 37 38 ret = sysctlbyname("net.inet.tcp.test_cache", &value, &len, NULL, 0); 39 if (ret == 0) { 40 value = 1; 41 T_ASSERT_POSIX_SUCCESS(sysctlbyname("net.inet.tcp.test_cache", NULL, NULL, 42 &value, sizeof(value)), NULL); 43 sysctlbyname("net.inet.tcp.clear_tfocache", NULL, NULL, 44 &value, sizeof(value)); 45 } else { 46 T_SKIP("net.inet.tcp.test_cache not available"); 47 } 48 } 49