>> 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
1 /* 2 /*
2 * INET An implementation of the TCP/I 3 * INET An implementation of the TCP/IP protocol suite for the LINUX
3 * operating system. INET is imp 4 * operating system. INET is implemented using the BSD Socket
4 * interface as the means of comm 5 * interface as the means of communication with the user level.
5 * 6 *
6 * Definitions of the Internet Pr 7 * Definitions of the Internet Protocol.
7 * 8 *
8 * Version: @(#)in.h 1.0.1 04/21/ 9 * Version: @(#)in.h 1.0.1 04/21/93
9 * 10 *
10 * Authors: Original taken from the GNU Pr 11 * Authors: Original taken from the GNU Project <netinet/in.h> file.
11 * Fred N. van Kempen, <waltje@uW 12 * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
12 * <<
13 * This program is free software; <<
14 * modify it under the terms of t <<
15 * as published by the Free Softw <<
16 * 2 of the License, or (at your <<
17 */ 13 */
18 #ifndef _LINUX_IN_H 14 #ifndef _LINUX_IN_H
19 #define _LINUX_IN_H 15 #define _LINUX_IN_H
20 16
21 17
22 #include <linux/errno.h> 18 #include <linux/errno.h>
23 #include <uapi/linux/in.h> 19 #include <uapi/linux/in.h>
24 20
25 static inline int proto_ports_offset(int proto 21 static inline int proto_ports_offset(int proto)
26 { 22 {
27 switch (proto) { 23 switch (proto) {
28 case IPPROTO_TCP: 24 case IPPROTO_TCP:
29 case IPPROTO_UDP: 25 case IPPROTO_UDP:
30 case IPPROTO_DCCP: 26 case IPPROTO_DCCP:
31 case IPPROTO_ESP: /* SPI */ 27 case IPPROTO_ESP: /* SPI */
32 case IPPROTO_SCTP: 28 case IPPROTO_SCTP:
33 case IPPROTO_UDPLITE: 29 case IPPROTO_UDPLITE:
34 return 0; 30 return 0;
35 case IPPROTO_AH: /* SPI */ 31 case IPPROTO_AH: /* SPI */
36 return 4; 32 return 4;
37 default: 33 default:
38 return -EINVAL; 34 return -EINVAL;
39 } 35 }
40 } 36 }
41 37
42 static inline bool ipv4_is_loopback(__be32 add 38 static inline bool ipv4_is_loopback(__be32 addr)
43 { 39 {
44 return (addr & htonl(0xff000000)) == h 40 return (addr & htonl(0xff000000)) == htonl(0x7f000000);
45 } 41 }
46 42
47 static inline bool ipv4_is_multicast(__be32 ad 43 static inline bool ipv4_is_multicast(__be32 addr)
48 { 44 {
49 return (addr & htonl(0xf0000000)) == h 45 return (addr & htonl(0xf0000000)) == htonl(0xe0000000);
50 } 46 }
51 47
52 static inline bool ipv4_is_local_multicast(__b 48 static inline bool ipv4_is_local_multicast(__be32 addr)
53 { 49 {
54 return (addr & htonl(0xffffff00)) == h 50 return (addr & htonl(0xffffff00)) == htonl(0xe0000000);
55 } 51 }
56 52
57 static inline bool ipv4_is_lbcast(__be32 addr) 53 static inline bool ipv4_is_lbcast(__be32 addr)
58 { 54 {
59 /* limited broadcast */ 55 /* limited broadcast */
60 return addr == htonl(INADDR_BROADCAST) 56 return addr == htonl(INADDR_BROADCAST);
61 } 57 }
62 58
>> 59 static inline bool ipv4_is_all_snoopers(__be32 addr)
>> 60 {
>> 61 return addr == htonl(INADDR_ALLSNOOPERS_GROUP);
>> 62 }
>> 63
63 static inline bool ipv4_is_zeronet(__be32 addr 64 static inline bool ipv4_is_zeronet(__be32 addr)
64 { 65 {
65 return (addr & htonl(0xff000000)) == h !! 66 return (addr == 0);
66 } 67 }
67 68
68 /* Special-Use IPv4 Addresses (RFC3330) */ 69 /* Special-Use IPv4 Addresses (RFC3330) */
69 70
70 static inline bool ipv4_is_private_10(__be32 a 71 static inline bool ipv4_is_private_10(__be32 addr)
71 { 72 {
72 return (addr & htonl(0xff000000)) == h 73 return (addr & htonl(0xff000000)) == htonl(0x0a000000);
73 } 74 }
74 75
75 static inline bool ipv4_is_private_172(__be32 76 static inline bool ipv4_is_private_172(__be32 addr)
76 { 77 {
77 return (addr & htonl(0xfff00000)) == h 78 return (addr & htonl(0xfff00000)) == htonl(0xac100000);
78 } 79 }
79 80
80 static inline bool ipv4_is_private_192(__be32 81 static inline bool ipv4_is_private_192(__be32 addr)
81 { 82 {
82 return (addr & htonl(0xffff0000)) == h 83 return (addr & htonl(0xffff0000)) == htonl(0xc0a80000);
83 } 84 }
84 85
85 static inline bool ipv4_is_linklocal_169(__be3 86 static inline bool ipv4_is_linklocal_169(__be32 addr)
86 { 87 {
87 return (addr & htonl(0xffff0000)) == h 88 return (addr & htonl(0xffff0000)) == htonl(0xa9fe0000);
88 } 89 }
89 90
90 static inline bool ipv4_is_anycast_6to4(__be32 91 static inline bool ipv4_is_anycast_6to4(__be32 addr)
91 { 92 {
92 return (addr & htonl(0xffffff00)) == h 93 return (addr & htonl(0xffffff00)) == htonl(0xc0586300);
93 } 94 }
94 95
95 static inline bool ipv4_is_test_192(__be32 add 96 static inline bool ipv4_is_test_192(__be32 addr)
96 { 97 {
97 return (addr & htonl(0xffffff00)) == h 98 return (addr & htonl(0xffffff00)) == htonl(0xc0000200);
98 } 99 }
99 100
100 static inline bool ipv4_is_test_198(__be32 add 101 static inline bool ipv4_is_test_198(__be32 addr)
101 { 102 {
102 return (addr & htonl(0xfffe0000)) == h 103 return (addr & htonl(0xfffe0000)) == htonl(0xc6120000);
103 } 104 }
104 #endif /* _LINUX_IN_H */ 105 #endif /* _LINUX_IN_H */
105 106
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.