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1823730f TG |
1 | #ifndef __LINUX_IF_ADDR_H |
2 | #define __LINUX_IF_ADDR_H | |
3 | ||
4 | #include <linux/netlink.h> | |
5 | ||
6 | struct 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 | */ | |
22 | enum | |
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 | ||
55ebaef1 | 41 | #define IFA_F_NODAD 0x02 |
95c385b4 | 42 | #define IFA_F_OPTIMISTIC 0x04 |
3b9f9a1c | 43 | #define IFA_F_HOMEADDRESS 0x10 |
1823730f TG |
44 | #define IFA_F_DEPRECATED 0x20 |
45 | #define IFA_F_TENTATIVE 0x40 | |
46 | #define IFA_F_PERMANENT 0x80 | |
47 | ||
48 | struct 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 | ||
d3dcc077 DM |
56 | /* backwards compatibility for userspace */ |
57 | #ifndef __KERNEL__ | |
58 | #define IFA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifaddrmsg)))) | |
59 | #define IFA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifaddrmsg)) | |
60 | #endif | |
61 | ||
1823730f | 62 | #endif |