#ifndef __LINUX_IF_ADDR_H

#define __LINUX_IF_ADDR_H

#include <linux/netlink.h>

struct ifaddrmsg

{

	__u8		ifa_family;

	__u8		ifa_prefixlen;	/* The prefix length		*/

	__u8		ifa_flags;	/* Flags			*/

	__u8		ifa_scope;	/* Address scope		*/

	__u32		ifa_index;	/* Link index			*/

};

/*

 * Important comment:

 * IFA_ADDRESS is prefix address, rather than local interface address.

 * It makes no difference for normally configured broadcast interfaces,

 * but for point-to-point IFA_ADDRESS is DESTINATION address,

 * local address is supplied in IFA_LOCAL attribute.

 */

enum

{

	IFA_UNSPEC,

	IFA_ADDRESS,

	IFA_LOCAL,

	IFA_LABEL,

	IFA_BROADCAST,

	IFA_ANYCAST,

	IFA_CACHEINFO,

	IFA_MULTICAST,

	__IFA_MAX,

};

#define IFA_MAX (__IFA_MAX - 1)

/* ifa_flags */

#define IFA_F_SECONDARY		0x01

#define IFA_F_TEMPORARY		IFA_F_SECONDARY

#define	IFA_F_NODAD		0x02

#define IFA_F_OPTIMISTIC	0x04

#define	IFA_F_HOMEADDRESS	0x10

#define IFA_F_DEPRECATED	0x20

#define IFA_F_TENTATIVE		0x40

#define IFA_F_PERMANENT		0x80

struct ifa_cacheinfo

{

	__u32	ifa_prefered;

	__u32	ifa_valid;

	__u32	cstamp; /* created timestamp, hundredths of seconds */

	__u32	tstamp; /* updated timestamp, hundredths of seconds */

};

/* backwards compatibility for userspace */

#ifndef __KERNEL__

#define IFA_RTA(r)  ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifaddrmsg))))

#define IFA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifaddrmsg))

#endif

#endif