| 1 | |
| 2 | * INET An implementation of the TCP/IP protocol suite for the LINUX
|
| 3 | * operating system. INET is implemented using the BSD Socket
|
| 4 | * interface as the means of communication with the user level.
|
| 5 | *
|
| 6 | * Definitions of the Internet Protocol.
|
| 7 | *
|
| 8 | * Version: @(#)in.h 1.0.1 04/21/93
|
| 9 | *
|
| 10 | * Authors: Original taken from the GNU Project <netinet/in.h> file.
|
| 11 | * Fred N. van Kempen, <[email protected]>
|
| 12 | *
|
| 13 | * This program is free software; you can redistribute it and/or
|
| 14 | * modify it under the terms of the GNU General Public License
|
| 15 | * as published by the Free Software Foundation; either version
|
| 16 | * 2 of the License, or (at your option) any later version.
|
| 17 |
|
| 18 | #ifndef _LINUX_IN_H
|
| 19 | #define _LINUX_IN_H
|
| 20 |
|
| 21 |
|
| 22 | #include <linux/errno.h>
|
| 23 | #include <uapi/linux/in.h>
|
| 24 |
|
| 25 | static inline int proto_ports_offset(int proto)
|
| 26 | {
|
| 27 | switch (proto) {
|
| 28 | case IPPROTO_TCP:
|
| 29 | case IPPROTO_UDP:
|
| 30 | case IPPROTO_DCCP:
|
| 31 | case IPPROTO_ESP:
|
| 32 | case IPPROTO_SCTP:
|
| 33 | case IPPROTO_UDPLITE:
|
| 34 | return 0;
|
| 35 | case IPPROTO_AH:
|
| 36 | return 4;
|
| 37 | default:
|
| 38 | return -EINVAL;
|
| 39 | }
|
| 40 | }
|
| 41 |
|
| 42 | static inline bool ipv4_is_loopback(__be32 addr)
|
| 43 | {
|
| 44 | return (addr & htonl(0xff000000)) == htonl(0x7f000000);
|
| 45 | }
|
| 46 |
|
| 47 | static inline bool ipv4_is_multicast(__be32 addr)
|
| 48 | {
|
| 49 | return (addr & htonl(0xf0000000)) == htonl(0xe0000000);
|
| 50 | }
|
| 51 |
|
| 52 | static inline bool ipv4_is_local_multicast(__be32 addr)
|
| 53 | {
|
| 54 | return (addr & htonl(0xffffff00)) == htonl(0xe0000000);
|
| 55 | }
|
| 56 |
|
| 57 | static inline bool ipv4_is_lbcast(__be32 addr)
|
| 58 | {
|
| 59 |
|
| 60 | return addr == htonl(INADDR_BROADCAST);
|
| 61 | }
|
| 62 |
|
| 63 | static inline bool ipv4_is_zeronet(__be32 addr)
|
| 64 | {
|
| 65 | return (addr & htonl(0xff000000)) == htonl(0x00000000);
|
| 66 | }
|
| 67 |
|
| 68 |
|
| 69 |
|
| 70 | static inline bool ipv4_is_private_10(__be32 addr)
|
| 71 | {
|
| 72 | return (addr & htonl(0xff000000)) == htonl(0x0a000000);
|
| 73 | }
|
| 74 |
|
| 75 | static inline bool ipv4_is_private_172(__be32 addr)
|
| 76 | {
|
| 77 | return (addr & htonl(0xfff00000)) == htonl(0xac100000);
|
| 78 | }
|
| 79 |
|
| 80 | static inline bool ipv4_is_private_192(__be32 addr)
|
| 81 | {
|
| 82 | return (addr & htonl(0xffff0000)) == htonl(0xc0a80000);
|
| 83 | }
|
| 84 |
|
| 85 | static inline bool ipv4_is_linklocal_169(__be32 addr)
|
| 86 | {
|
| 87 | return (addr & htonl(0xffff0000)) == htonl(0xa9fe0000);
|
| 88 | }
|
| 89 |
|
| 90 | static inline bool ipv4_is_anycast_6to4(__be32 addr)
|
| 91 | {
|
| 92 | return (addr & htonl(0xffffff00)) == htonl(0xc0586300);
|
| 93 | }
|
| 94 |
|
| 95 | static inline bool ipv4_is_test_192(__be32 addr)
|
| 96 | {
|
| 97 | return (addr & htonl(0xffffff00)) == htonl(0xc0000200);
|
| 98 | }
|
| 99 |
|
| 100 | static inline bool ipv4_is_test_198(__be32 addr)
|
| 101 | {
|
| 102 | return (addr & htonl(0xfffe0000)) == htonl(0xc6120000);
|
| 103 | }
|
| 104 | #endif
|