K 10
svn:author
V 8
melifaro
K 8
svn:date
V 27
2013-03-08T20:33:50.634230Z
K 7
svn:log
V 363
Fix long-standing issue with interface routes being unprotected:
Use RTM_PINNED flag to mark route as immutable.
Forbid deleting immutable routes without special rtrequest1_fib() flag.
Adding interface address with prefix already in route table is handled
by atomically deleting old prefix and adding interface one.

Discussed with:	andre, eri
MFC after:	3 weeks

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