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ipv6 addrconf: add IFA_F_NOPREFIXROUTE flag to suppress creation of IP6 routes

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When adding/modifying an IPv6 address, the userspace application needs
a way to suppress adding a prefix route. This is for example relevant
together with IFA_F_MANAGERTEMPADDR, where userspace creates autoconf
generated addresses, but depending on on-link, no route for the
prefix should be added.

Signed-off-by: Thomas Haller <thaller@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Thomas Haller
2014-01-15 15:36:58 +01:00
committed by David S. Miller
parent 6631c5cea8
commit 761aac737e
2 changed files with 14 additions and 6 deletions
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include/uapi/linux/if_addr.h
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@@ -49,6 +49,7 @@ enum {
#define IFA_F_TENTATIVE 0x40
#define IFA_F_PERMANENT 0x80
#define IFA_F_MANAGETEMPADDR 0x100
#define IFA_F_NOPREFIXROUTE 0x200
struct ifa_cacheinfo {
__u32 ifa_prefered;