PageRenderTime 24ms CodeModel.GetById 16ms app.highlight 5ms RepoModel.GetById 2ms app.codeStats 0ms

/include/linux/if_addr.h

https://gitlab.com/simplified-mandatory-access-control-kernel/ossecus-simplified-mandatory-access-control-kernel
C Header | 61 lines | 43 code | 9 blank | 9 comment | 0 complexity | 0087270d67b3ddce37aecb99789a66a0 MD5 | raw file
 1#ifndef __LINUX_IF_ADDR_H
 2#define __LINUX_IF_ADDR_H
 3
 4#include <linux/types.h>
 5#include <linux/netlink.h>
 6
 7struct ifaddrmsg {
 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	IFA_UNSPEC,
24	IFA_ADDRESS,
25	IFA_LOCAL,
26	IFA_LABEL,
27	IFA_BROADCAST,
28	IFA_ANYCAST,
29	IFA_CACHEINFO,
30	IFA_MULTICAST,
31	__IFA_MAX,
32};
33
34#define IFA_MAX (__IFA_MAX - 1)
35
36/* ifa_flags */
37#define IFA_F_SECONDARY		0x01
38#define IFA_F_TEMPORARY		IFA_F_SECONDARY
39
40#define	IFA_F_NODAD		0x02
41#define IFA_F_OPTIMISTIC	0x04
42#define IFA_F_DADFAILED		0x08
43#define	IFA_F_HOMEADDRESS	0x10
44#define IFA_F_DEPRECATED	0x20
45#define IFA_F_TENTATIVE		0x40
46#define IFA_F_PERMANENT		0x80
47
48struct ifa_cacheinfo {
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/* backwards compatibility for userspace */
56#ifndef __KERNEL__
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#endif
60
61#endif