if_addr.h revision de3d12f48ac1869fc9f9cb442b2d692b027d8a14 
12a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#ifndef __LINUX_IF_ADDR_H
22a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#define __LINUX_IF_ADDR_H
32a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)
42a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include <linux/netlink.h>
52a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)
62a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)struct ifaddrmsg
72a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles){
82a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)	__u8		ifa_family;
92a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)	__u8		ifa_prefixlen;	/* The prefix length		*/
102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)	__u8		ifa_flags;	/* Flags			*/
112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)	__u8		ifa_scope;	/* Address scope		*/
122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)	__u32		ifa_index;	/* Link index			*/
132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)};
142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)
152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)/*
162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) * Important comment:
172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) * IFA_ADDRESS is prefix address, rather than local interface address.
182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) * It makes no difference for normally configured broadcast interfaces,
192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) * but for point-to-point IFA_ADDRESS is DESTINATION address,
202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) * local address is supplied in IFA_LOCAL attribute.
212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) */
222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)enum
232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles){
242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)	IFA_UNSPEC,
252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)	IFA_ADDRESS,
262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)	IFA_LOCAL,
272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)	IFA_LABEL,
282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)	IFA_BROADCAST,
292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)	IFA_ANYCAST,
302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)	IFA_CACHEINFO,
312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)	IFA_MULTICAST,
322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)	__IFA_MAX,
332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)};
342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)
352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#define IFA_MAX (__IFA_MAX - 1)
362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)
372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)/* ifa_flags */
382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#define IFA_F_SECONDARY		0x01
392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#define IFA_F_TEMPORARY		IFA_F_SECONDARY
402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)
412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#define	IFA_F_NODAD		0x02
422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#define IFA_F_OPTIMISTIC	0x04
432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#define	IFA_F_HOMEADDRESS	0x10
442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#define IFA_F_DEPRECATED	0x20
452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#define IFA_F_TENTATIVE		0x40
46#define IFA_F_PERMANENT		0x80
47
48struct ifa_cacheinfo
49{
50	__u32	ifa_prefered;
51	__u32	ifa_valid;
52	__u32	cstamp; /* created timestamp, hundredths of seconds */
53	__u32	tstamp; /* updated timestamp, hundredths of seconds */
54};
55
56/* backwards compatibility for userspace */
57#define IFA_RTA(r)  ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifaddrmsg))))
58#define IFA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifaddrmsg))
59
60#endif
61