1/*
2 * Copyright (c) 2019-2021 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#ifndef _NETINET_IN_RESTRICTED_PORT_H_
30#define _NETINET_IN_RESTRICTED_PORT_H_
31
32#ifdef BSD_KERNEL_PRIVATE
33
34#include <kern/bits.h>
35
36#define PORT_FLAGS_LISTENER 0x00
37#if SKYWALK
38#define PORT_FLAGS_SKYWALK 0x01
39#endif /* SKYWALK */
40#define PORT_FLAGS_BSD 0x02
41#define PORT_FLAGS_PF 0x03
42#define PORT_FLAGS_MAX 0x03
43
44/*
45 * the port in network byte order
46 */
47#define IS_RESTRICTED_IN_PORT(x) (bitmap_test(restricted_port_bitmap, ntohs((uint16_t)(x))))
48
49extern bitmap_t *restricted_port_bitmap;
50
51extern void restricted_in_port_init(void);
52
53/*
54 * The port must be in network byte order
55 */
56extern bool current_task_can_use_restricted_in_port(in_port_t port, uint8_t protocol, uint32_t port_flags);
57
58#endif /* BSD_KERNEL_PRIVATE */
59
60#endif /* _NETINET_IN_RESTRICTED_PORT_H_ */
61