commit b9ea7fd6d6f94f21fb125be772e810b8b866bd88
Author: Arnaud Ebalard <arno@natisbad.org>
Date:   Sat Sep 18 00:54:38 2010 +0200

    Handle BU processing regression for CN introduced by 36c929e1
    
    While extracting CN and HA checks of mh_bu_parse() in commit 36c929e1,
    checks for H flag in BU were omitted in CN code path. As reported, this
    caused TAHI correspondent node tests 118-123 (5.3. Receiving BU with (H)
    bit is set) to fail.
    
    This commit restores the behavior expected by the RFC and TAHI tests.
    It also makes associated code more readable. The whole thread is here:
    
      http://thread.gmane.org/gmane.network.ipv6.nautilus6.general/477
    
    Reported-by: Steve Chen <schen@mvista.com>