if_addr.h revision e084501669a4e4931c9d648351ecd7d595b81b79
1224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#ifndef __LINUX_IF_ADDR_H 2224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define __LINUX_IF_ADDR_H 3224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 4224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#include <linux/types.h> 5224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#include <linux/netlink.h> 6224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 7224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Chengstruct ifaddrmsg { 8224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __u8 ifa_family; 9224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __u8 ifa_prefixlen; /* The prefix length */ 10224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __u8 ifa_flags; /* Flags */ 11224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __u8 ifa_scope; /* Address scope */ 12224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __u32 ifa_index; /* Link index */ 13224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng}; 14224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 15224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng/* 16224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * Important comment: 17224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * IFA_ADDRESS is prefix address, rather than local interface address. 18224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * It makes no difference for normally configured broadcast interfaces, 19224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * but for point-to-point IFA_ADDRESS is DESTINATION address, 20224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng * local address is supplied in IFA_LOCAL attribute. 21e084501669a4e4931c9d648351ecd7d595b81b79Christopher Ferris * 22e084501669a4e4931c9d648351ecd7d595b81b79Christopher Ferris * IFA_FLAGS is a u32 attribute that extends the u8 field ifa_flags. 23e084501669a4e4931c9d648351ecd7d595b81b79Christopher Ferris * If present, the value from struct ifaddrmsg will be ignored. 24224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng */ 25224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Chengenum { 26224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng IFA_UNSPEC, 27224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng IFA_ADDRESS, 28224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng IFA_LOCAL, 29224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng IFA_LABEL, 30224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng IFA_BROADCAST, 31224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng IFA_ANYCAST, 32224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng IFA_CACHEINFO, 33224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng IFA_MULTICAST, 34e084501669a4e4931c9d648351ecd7d595b81b79Christopher Ferris IFA_FLAGS, 35224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __IFA_MAX, 36224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng}; 37224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 38224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IFA_MAX (__IFA_MAX - 1) 39224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 40224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng/* ifa_flags */ 41224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IFA_F_SECONDARY 0x01 42224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IFA_F_TEMPORARY IFA_F_SECONDARY 43224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 44224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IFA_F_NODAD 0x02 45224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IFA_F_OPTIMISTIC 0x04 46224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IFA_F_DADFAILED 0x08 47224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IFA_F_HOMEADDRESS 0x10 48224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IFA_F_DEPRECATED 0x20 49224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IFA_F_TENTATIVE 0x40 50224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IFA_F_PERMANENT 0x80 51e084501669a4e4931c9d648351ecd7d595b81b79Christopher Ferris#define IFA_F_MANAGETEMPADDR 0x100 52e084501669a4e4931c9d648351ecd7d595b81b79Christopher Ferris#define IFA_F_NOPREFIXROUTE 0x200 53224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 54224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Chengstruct ifa_cacheinfo { 55224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __u32 ifa_prefered; 56224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __u32 ifa_valid; 57224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __u32 cstamp; /* created timestamp, hundredths of seconds */ 58224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng __u32 tstamp; /* updated timestamp, hundredths of seconds */ 59224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng}; 60224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 61224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng/* backwards compatibility for userspace */ 62224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#ifndef __KERNEL__ 63224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IFA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifaddrmsg)))) 64224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#define IFA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifaddrmsg)) 65224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#endif 66224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng 67224b54f69543a5c0ec18f99bd717d2b724582eb6Ben Cheng#endif 68