ipv4: Invalidate nexthop cache nh_saddr more correctly.

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Any operation that:

1) Brings up an interface
2) Adds an IP address to an interface
3) Deletes an IP address from an interface

can potentially invalidate the nh_saddr value, requiring
it to be recomputed.

Perform the recomputation lazily using a generation ID.

Reported-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

This commit is contained in:

David S. Miller 2011-03-24 17:42:21 -07:00

parent f7594d4294

commit 436c3b66ec

5 changed files with 33 additions and 29 deletions

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12

include/net/ip_fib.h

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1

include/net/netns/ipv4.h

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11

net/ipv4/fib_frontend.c

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32

net/ipv4/fib_semantics.c

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6

net/ipv4/route.c

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