CVS commit: [netbsd-9] src/sys/netinet6

["Martin Husemann" <martin%netbsd.org@localhost>]

Module Name:    src
Committed By:   martin
Date:           Thu Sep  5 08:32:34 UTC 2019

Modified Files:
        src/sys/netinet6 [netbsd-9]: nd6.c nd6.h

Log Message:
Pull up following revision(s) (requested by roy in ticket #169):

        sys/netinet6/nd6.h: revision 1.87
        sys/netinet6/nd6.c: revision 1.263

inet6: Re-introduce ND6_LLINFO_WAITDELETE so we can return EHOSTDOWN

Once we've sent nd6_mmaxtries NS messages, send RTM_MISS and move to the
ND6_LLINFO_WAITDELETE state rather than freeing the llentry right away.
Wait for a probe cycle and then free the llentry.

If a connection attempts to re-use the llentry during ND6_LLINFO_WAITDELETE,
return EHOSTDOWN (or EHOSTUNREACH if a gateway) to match inet behaviour.

Continue to ND6_LLINFO_INCOMPLETE and send another NS probe in hope of a
reply. Rinse and repeat.

This reverts part of nd6.c r1.14 - an 18 year old commit!


To generate a diff of this commit:
cvs rdiff -u -r1.256.2.5 -r1.256.2.6 src/sys/netinet6/nd6.c
cvs rdiff -u -r1.86 -r1.86.6.1 src/sys/netinet6/nd6.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.