tree 9abd3f1753cb10d328cc87db365910ef2181ea69
parent 79f88ee9836d482891ba41b1a553e2baacf31b02
author Lorenzo Colitti <lorenzo@google.com> 1311688249 +0000
committer David S. Miller <davem@davemloft.net> 1312247100 -0700

ipv6: updates to privacy addresses per RFC 4941.

Update the code to handle some of the differences between
RFC 3041 and RFC 4941, which obsoletes it. Also a couple
of janitorial fixes.

- Allow router advertisements to increase the lifetime of
  temporary addresses. This was not allowed by RFC 3041,
  but is specified by RFC 4941. It is useful when RA
  lifetimes are lower than TEMP_{VALID,PREFERRED}_LIFETIME:
  in this case, the previous code would delete or deprecate
  addresses prematurely.

- Change the default of MAX_RETRY to 3 per RFC 4941.

- Add a comment to clarify that the preferred and valid
  lifetimes in inet6_ifaddr are relative to the timestamp.

- Shorten lines to 80 characters in a couple of places.

Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>