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-rw-r--r--include/linux/if_addr.h55
1 files changed, 55 insertions, 0 deletions
diff --git a/include/linux/if_addr.h b/include/linux/if_addr.h
new file mode 100644
index 000000000000..dbe8f6120a40
--- /dev/null
+++ b/include/linux/if_addr.h
@@ -0,0 +1,55 @@
1#ifndef __LINUX_IF_ADDR_H
2#define __LINUX_IF_ADDR_H
3
4#include <linux/netlink.h>
5
6struct 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 */
22enum
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
41#define IFA_F_NODAD 0x02
42#define IFA_F_HOMEADDRESS 0x10
43#define IFA_F_DEPRECATED 0x20
44#define IFA_F_TENTATIVE 0x40
45#define IFA_F_PERMANENT 0x80
46
47struct ifa_cacheinfo
48{
49 __u32 ifa_prefered;
50 __u32 ifa_valid;
51 __u32 cstamp; /* created timestamp, hundredths of seconds */
52 __u32 tstamp; /* updated timestamp, hundredths of seconds */
53};
54
55#endif