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