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linux-next/include/linux/if_addr.h
Brian Haley cc411d0bae ipv6: Add IFA_F_DADFAILED flag
Add IFA_F_DADFAILED flag to denote an IPv6 address that has
failed Duplicate Address Detection, that way tools like
/sbin/ip can be more informative.

3: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qlen 1000
    inet6 2001:db8::1/64 scope global tentative dadfailed
       valid_lft forever preferred_lft forever

Signed-off-by: Brian Haley <brian.haley@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-11 12:54:58 -07:00

65 lines
1.4 KiB
C

#ifndef __LINUX_IF_ADDR_H
#define __LINUX_IF_ADDR_H
#include <linux/types.h>
#include <linux/netlink.h>
struct ifaddrmsg
{
__u8 ifa_family;
__u8 ifa_prefixlen; /* The prefix length */
__u8 ifa_flags; /* Flags */
__u8 ifa_scope; /* Address scope */
__u32 ifa_index; /* Link index */
};
/*
* Important comment:
* IFA_ADDRESS is prefix address, rather than local interface address.
* It makes no difference for normally configured broadcast interfaces,
* but for point-to-point IFA_ADDRESS is DESTINATION address,
* local address is supplied in IFA_LOCAL attribute.
*/
enum
{
IFA_UNSPEC,
IFA_ADDRESS,
IFA_LOCAL,
IFA_LABEL,
IFA_BROADCAST,
IFA_ANYCAST,
IFA_CACHEINFO,
IFA_MULTICAST,
__IFA_MAX,
};
#define IFA_MAX (__IFA_MAX - 1)
/* ifa_flags */
#define IFA_F_SECONDARY 0x01
#define IFA_F_TEMPORARY IFA_F_SECONDARY
#define IFA_F_NODAD 0x02
#define IFA_F_OPTIMISTIC 0x04
#define IFA_F_DADFAILED 0x08
#define IFA_F_HOMEADDRESS 0x10
#define IFA_F_DEPRECATED 0x20
#define IFA_F_TENTATIVE 0x40
#define IFA_F_PERMANENT 0x80
struct ifa_cacheinfo
{
__u32 ifa_prefered;
__u32 ifa_valid;
__u32 cstamp; /* created timestamp, hundredths of seconds */
__u32 tstamp; /* updated timestamp, hundredths of seconds */
};
/* backwards compatibility for userspace */
#ifndef __KERNEL__
#define IFA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifaddrmsg))))
#define IFA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifaddrmsg))
#endif
#endif