/*
* Copyright (c) 2023-2024 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,
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* Please see the License for the specific language governing rights and
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*/
#include <darwintest.h>
#include <sys/ioctl.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <net/if_fake_var.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include "net_test_lib.h"
T_GLOBAL_META(
T_META_NAMESPACE("xnu.net"),
T_META_ASROOT(true),
T_META_RADAR_COMPONENT_NAME("xnu"),
T_META_RADAR_COMPONENT_VERSION("networking"),
T_META_CHECK_LEAKS(false));
static char ifname1[IF_NAMESIZE];
static void
cleanup(void)
{
if (ifname1[0] != '\0') {
(void)ifnet_destroy(ifname1, false);
T_LOG("ifnet_destroy %s", ifname1);
}
}
T_DECL(if_creation_generation_id, "network interface creation generation id")
{
int error;
int s = inet_dgram_socket_get();
T_ATEND(cleanup);
#ifdef SIOCGIFGENERATIONID
strlcpy(ifname1, FETH_NAME, sizeof(ifname1));
error = ifnet_create_2(ifname1, sizeof(ifname1));
if (error != 0) {
ifname1[0] = '\0';
T_ASSERT_POSIX_SUCCESS(error, "ifnet_create_2");
}
T_LOG("created %s", ifname1);
struct ifreq ifr = {};
strlcpy(ifr.ifr_name, ifname1, sizeof(ifr.ifr_name));
T_ASSERT_POSIX_SUCCESS(ioctl(s, SIOCGIFGENERATIONID, &ifr), NULL);
uint64_t if_generation_id = ifr.ifr_creation_generation_id;
T_LOG("interface creation generation id: %llu", if_generation_id);
(void)ifnet_destroy(ifname1, true);
T_LOG("destroyed %s", ifname1);
/* ifnet_create() will retry if creating fails due to EBUSY */
T_ASSERT_POSIX_SUCCESS(ifnet_create(ifname1), NULL);
T_LOG("re-created %s", ifname1);
T_ASSERT_POSIX_SUCCESS(ioctl(s, SIOCGIFGENERATIONID, &ifr), NULL);
T_LOG("interface creation generation id: %llu", ifr.ifr_creation_generation_id);
T_ASSERT_NE_ULLONG(if_generation_id, ifr.ifr_creation_generation_id,
"interface generation id are different");
#else
T_SKIP("SIOCGIFGENERATIONID does not exist");
#endif
}