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1823730f TG |
1 | #ifndef __LINUX_IF_ADDR_H |
2 | #define __LINUX_IF_ADDR_H | |
3 | ||
680ee0bd | 4 | #include <linux/types.h> |
1823730f TG |
5 | #include <linux/netlink.h> |
6 | ||
d94d9fee | 7 | struct ifaddrmsg { |
1823730f TG |
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. | |
479840ff JP |
21 | * |
22 | * IFA_FLAGS is a u32 attribute that extends the u8 field ifa_flags. | |
23 | * If present, the value from struct ifaddrmsg will be ignored. | |
1823730f | 24 | */ |
d94d9fee | 25 | enum { |
1823730f TG |
26 | IFA_UNSPEC, |
27 | IFA_ADDRESS, | |
28 | IFA_LOCAL, | |
29 | IFA_LABEL, | |
30 | IFA_BROADCAST, | |
31 | IFA_ANYCAST, | |
32 | IFA_CACHEINFO, | |
33 | IFA_MULTICAST, | |
479840ff | 34 | IFA_FLAGS, |
1823730f TG |
35 | __IFA_MAX, |
36 | }; | |
37 | ||
38 | #define IFA_MAX (__IFA_MAX - 1) | |
39 | ||
40 | /* ifa_flags */ | |
41 | #define IFA_F_SECONDARY 0x01 | |
42 | #define IFA_F_TEMPORARY IFA_F_SECONDARY | |
43 | ||
55ebaef1 | 44 | #define IFA_F_NODAD 0x02 |
95c385b4 | 45 | #define IFA_F_OPTIMISTIC 0x04 |
cc411d0b | 46 | #define IFA_F_DADFAILED 0x08 |
3b9f9a1c | 47 | #define IFA_F_HOMEADDRESS 0x10 |
1823730f TG |
48 | #define IFA_F_DEPRECATED 0x20 |
49 | #define IFA_F_TENTATIVE 0x40 | |
50 | #define IFA_F_PERMANENT 0x80 | |
53bd6749 | 51 | #define IFA_F_MANAGETEMPADDR 0x100 |
761aac73 | 52 | #define IFA_F_NOPREFIXROUTE 0x200 |
93a714d6 | 53 | #define IFA_F_MCAUTOJOIN 0x400 |
64236f3f | 54 | #define IFA_F_STABLE_PRIVACY 0x800 |
1823730f | 55 | |
d94d9fee | 56 | struct ifa_cacheinfo { |
1823730f TG |
57 | __u32 ifa_prefered; |
58 | __u32 ifa_valid; | |
59 | __u32 cstamp; /* created timestamp, hundredths of seconds */ | |
60 | __u32 tstamp; /* updated timestamp, hundredths of seconds */ | |
61 | }; | |
62 | ||
d3dcc077 DM |
63 | /* backwards compatibility for userspace */ |
64 | #ifndef __KERNEL__ | |
65 | #define IFA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifaddrmsg)))) | |
66 | #define IFA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifaddrmsg)) | |
67 | #endif | |
68 | ||
1823730f | 69 | #endif |