1. 21 Sep, 2017 20 commits
  2. 20 Sep, 2017 19 commits
  3. 19 Sep, 2017 1 commit
    • Matteo Croce's avatar
      ipv6: fix net.ipv6.conf.all interface DAD handlers · 35e015e1
      Matteo Croce authored
      Currently, writing into
      net.ipv6.conf.all.{accept_dad,use_optimistic,optimistic_dad} has no effect.
      Fix handling of these flags by:
      
      - using the maximum of global and per-interface values for the
        accept_dad flag. That is, if at least one of the two values is
        non-zero, enable DAD on the interface. If at least one value is
        set to 2, enable DAD and disable IPv6 operation on the interface if
        MAC-based link-local address was found
      
      - using the logical OR of global and per-interface values for the
        optimistic_dad flag. If at least one of them is set to one, optimistic
        duplicate address detection (RFC 4429) is enabled on the interface
      
      - using the logical OR of global and per-interface values for the
        use_optimistic flag. If at least one of them is set to one,
        optimistic addresses won't be marked as deprecated during source address
        selection on the interface.
      
      While at it, as we're modifying the prototype for ipv6_use_optimistic_addr(),
      drop inline, and let the compiler decide.
      
      Fixes: 7fd2561e ("net: ipv6: Add a sysctl to make optimistic addresses useful candidates")
      Signed-off-by: default avatarMatteo Croce <mcroce@redhat.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      35e015e1