if_addr.h revision ead2ba7008c9db02954dae6f180aed8770a0560d 
1#ifndef __LINUX_IF_ADDR_H
2#define __LINUX_IF_ADDR_H
3
4#include <linux/netlink.h>
5
6struct ifaddrmsg
7{
8	__u8		ifa_family;
9	__u8		ifa_prefixlen;	/* The prefix length		*/
10	__u8		ifa_flags;	/* Flags			*/
11	__u8		ifa_scope;	/* Address scope		*/
12	__u32		ifa_index;	/* Link index			*/
13};
14
15/*
16 * Important comment:
17 * IFA_ADDRESS is prefix address, rather than local interface address.
18 * It makes no difference for normally configured broadcast interfaces,
19 * but for point-to-point IFA_ADDRESS is DESTINATION address,
20 * local address is supplied in IFA_LOCAL attribute.
21 */
22enum
23{
24	IFA_UNSPEC,
25	IFA_ADDRESS,
26	IFA_LOCAL,
27	IFA_LABEL,
28	IFA_BROADCAST,
29	IFA_ANYCAST,
30	IFA_CACHEINFO,
31	IFA_MULTICAST,
32	__IFA_MAX,
33};
34
35#define IFA_MAX (__IFA_MAX - 1)
36
37/* ifa_flags */
38#define IFA_F_SECONDARY		0x01
39#define IFA_F_TEMPORARY		IFA_F_SECONDARY
40
41#define	IFA_F_NODAD		0x02
42#define	IFA_F_HOMEADDRESS	0x10
43#define IFA_F_DEPRECATED	0x20
44#define IFA_F_TENTATIVE		0x40
45#define IFA_F_PERMANENT		0x80
46
47struct ifa_cacheinfo
48{
49	__u32	ifa_prefered;
50	__u32	ifa_valid;
51	__u32	cstamp; /* created timestamp, hundredths of seconds */
52	__u32	tstamp; /* updated timestamp, hundredths of seconds */
53};
54
55#endif
56