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ipv6: Add IFA_F_DADFAILED flag

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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>
This commit is contained in:
Brian Haley 2009-09-09 14:41:32 +00:00 • committed by David S. Miller
commit cc411d0bae
2 changed files with 8 additions and 5 deletions
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include/linux/if_addr.h
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@ -41,6 +41,7 @@ enum
#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