/*
* Copyright (c) 2024 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@
*/
#include <net/if_utun.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <sys/kern_control.h>
#include <sys/sys_domain.h>
#include <sys/ioctl.h>
#include <darwintest.h>
#include <pthread.h>
#include <unistd.h>
T_GLOBAL_META(
T_META_NAMESPACE("xnu.net"),
T_META_RADAR_COMPONENT_NAME("xnu"),
T_META_RADAR_COMPONENT_VERSION("networking"),
T_META_CHECK_LEAKS(false));
#define SECONDS_TO_SLEEP 3
static int fd = -1;
static bool finished = false;
static void *
call_setsockopt(void *arg)
{
#pragma unused(arg)
while (finished == false) {
(void)setsockopt(fd, SYSPROTO_CONTROL, SO_DEFUNCTIT, 0, 0);
}
return NULL;
}
T_DECL(kctl_disconnect_race, "Race mutliple threads triggering ctl_disconnect")
{
struct ctl_info ctl_info = { 0 };
struct sockaddr_ctl sockaddr_ctl = {
.sc_len = sizeof(struct sockaddr_ctl),
.sc_family = AF_SYSTEM,
.ss_sysaddr = AF_SYS_CONTROL,
.sc_unit = 0
};
pthread_t runner1, runner2;
T_ASSERT_POSIX_SUCCESS(fd = socket(PF_SYSTEM, SOCK_DGRAM, SYSPROTO_CONTROL), NULL);
strlcpy(ctl_info.ctl_name, UTUN_CONTROL_NAME, sizeof(ctl_info.ctl_name));
T_ASSERT_POSIX_SUCCESS(ioctl(fd, CTLIOCGINFO, &ctl_info), NULL);
sockaddr_ctl.sc_id = ctl_info.ctl_id;
T_ASSERT_POSIX_SUCCESS(connect(fd, (const struct sockaddr *)&sockaddr_ctl, sizeof(struct sockaddr_ctl)), NULL);
if (pthread_create(&runner1, NULL, call_setsockopt, NULL)) {
T_ASSERT_FAIL("pthread_create failed");
}
if (pthread_create(&runner2, NULL, call_setsockopt, NULL)) {
T_ASSERT_FAIL("pthread_create failed");
}
sleep(SECONDS_TO_SLEEP);
finished = true;
pthread_join(runner1, 0);
pthread_join(runner2, 0);
}