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 | |
49 | extern bitmap_t *restricted_port_bitmap; |
50 | |
51 | extern void restricted_in_port_init(void); |
52 | |
53 | /* |
54 | * The port must be in network byte order |
55 | */ |
56 | extern 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 | |