1 /*
2 * Copyright (c) 2020-2024 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 /* <rdar://problem/58673168> Restricted port used by non-entitled process */
30
31 #include <assert.h>
32 #include <errno.h>
33 #include <stdio.h>
34 #include <spawn.h>
35 #include <stdlib.h>
36 #include <string.h>
37 #include <unistd.h>
38 #include <sys/types.h>
39 #include <sys/sysctl.h>
40 #include "skywalk_test_driver.h"
41 #include "skywalk_test_utils.h"
42 #include "skywalk_test_common.h"
43
44 static int
skt_reserve_restricted_port()45 skt_reserve_restricted_port()
46 {
47 int error;
48 int restricted_port = 55555; // restricted for lights_out_management
49
50 struct sktc_nexus_handles handles;
51 sktc_create_flowswitch(&handles, 0);
52
53 /* try reserve one of the restricted ephemeral ports */
54 uuid_t flow;
55 uuid_generate_random(flow);
56 error = sktc_bind_tcp4_flow(handles.controller, handles.fsw_nx_uuid,
57 restricted_port, NEXUS_PORT_FLOW_SWITCH_CLIENT, flow);
58 SKTC_ASSERT_ERR(error == -1);
59 SKTC_ASSERT_ERR(errno == EADDRINUSE);
60 uuid_clear(flow);
61
62 sktc_cleanup_flowswitch(&handles);
63
64 return 0;
65 }
66
67 int
skt_reserve_restricted_port_main(int argc,char * argv[])68 skt_reserve_restricted_port_main(int argc, char *argv[])
69 {
70 return skt_reserve_restricted_port();
71 }
72
73 struct skywalk_test skt_restricted_port = {
74 "restricted_port", "test reserve a restricted ephemeral port",
75 SK_FEATURE_SKYWALK | SK_FEATURE_NEXUS_NETIF | SK_FEATURE_NEXUS_FLOWSWITCH | SK_FEATURE_NETNS,
76 skt_reserve_restricted_port_main, { NULL }, sktc_ifnet_feth0_create, sktc_ifnet_feth0_destroy,
77 };
78