blob: a5a8fdddbf76a4779c9bb18f7626edb5d29a7c54 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
/** @file
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef __INET_IPV4_H__
#define __INET_IPV4_H__
#include <inttypes.h>
#include <glib.h>
typedef uint32_t ws_in4_addr; /* 32 bit IPv4 address, in network byte order */
/*
* We define these in *network byte order*, unlike the C library. Therefore
* it uses a different prefix than INADDR_* to make the distinction more obvious.
*/
#define WS_IN4_LOOPBACK ((ws_in4_addr)GUINT32_TO_BE(0x7f000001))
/**
* Unicast Local
* Returns true if the address is in the 224.0.0.0/24 local network
* control block
*/
#define in4_addr_is_local_network_control_block(addr) \
((addr & 0xffffff00) == 0xe0000000)
/**
* Multicast
* Returns true if the address is in the 224.0.0.0/4 network block
*/
#define in4_addr_is_multicast(addr) \
((addr & 0xf0000000) == 0xe0000000)
/**
* Private address
* Returns true if the address is in one of the three blocks reserved
* for private IPv4 addresses by section 3 of RFC 1918, namely:
* 10/8, 172.16/12, and 192.168/16
*/
#define in4_addr_is_private(addr) \
(((addr & 0xff000000) == 0x0a000000) || \
((addr & 0xfff00000) == 0xac100000) || \
((addr & 0xffff0000) == 0xc0a80000))
/**
* Link-local address
* Returns true if the address is in the 169.254/16 network block
*/
#define in4_addr_is_link_local(addr) \
((addr & 0xffff0000) == 0xa9fe0000)
#endif
|
