/*
* Copyright (c) 2023 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@
*/
#include <sys/fcntl.h>
#include <sys/socket.h>
#include <net/if.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <arpa/inet.h>
#include <darwintest.h>
#include <pthread.h>
#include <stdbool.h>
#include <string.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));
static int fd = -1;
static bool finished = false;
static bool is_tcp = false;
static void
init_sin6_address(struct sockaddr_in6 *sin6)
{
memset(sin6, 0, sizeof(struct sockaddr_in6));
sin6->sin6_len = sizeof(struct sockaddr_in6);
sin6->sin6_family = AF_INET6;
}
static void *
racer(void *arg)
{
#pragma unused(arg)
struct sockaddr_in6 sin6 = {};
init_sin6_address(&sin6);
T_ASSERT_EQ(inet_pton(AF_INET6, "::ffff:127.0.0.1", &sin6.sin6_addr), 1, NULL);
while (finished == false) {
(void)bind(fd, (struct sockaddr*)&sin6, sin6.sin6_len);
}
return NULL;
}
static void *
leader(void *arg)
{
#pragma unused(arg)
struct sockaddr_in6 sin6 = {};
init_sin6_address(&sin6);
T_ASSERT_EQ(inet_pton(AF_INET6, "::1", &sin6.sin6_addr), 1, NULL);
while (finished == false) {
T_QUIET; T_EXPECT_POSIX_SUCCESS(fd = socket(AF_INET6, is_tcp ? SOCK_STREAM : SOCK_DGRAM, 0), "socket");
(void)bind(fd, (struct sockaddr*)&sin6, sin6.sin6_len);
close(fd);
}
return NULL;
}
T_DECL(ipv6_tcp_bind_race, "race bind calls with TCP sockets")
{
pthread_t runner1;
if (pthread_create(&runner1, NULL, leader, NULL)) {
T_ASSERT_FAIL("pthread_create failed");
}
pthread_t runner2;
if (pthread_create(&runner2, NULL, racer, NULL)) {
T_ASSERT_FAIL("pthread_create failed");
}
sleep(5);
finished = true;
pthread_join(runner1, 0);
pthread_join(runner2, 0);
}
T_DECL(ipv6_udp_bind_race, "race bind calls with UDP sockets")
{
is_tcp = false;
pthread_t runner1;
if (pthread_create(&runner1, NULL, leader, NULL)) {
T_ASSERT_FAIL("pthread_create failed");
}
pthread_t runner2;
if (pthread_create(&runner2, NULL, racer, NULL)) {
T_ASSERT_FAIL("pthread_create failed");
}
sleep(5);
finished = true;
pthread_join(runner1, 0);
pthread_join(runner2, 0);
}