CVSROOT: /cvs
Module name: src
Changes by: m...@cvs.openbsd.org 2015/10/13 04:16:17
Modified files:
sys/netinet : ip_output.c
sys/netinet6 : in6_src.c
Log message:
Use rtisivalid(9) to check if the given (cached) route can be used.
Note that after calling rtalloc(9) we only check if a route has been
returned or not and do not check for its validity. This cannot be
improved without a massive refactoring.
The kernel currently *do* use !RTF_UP route due to a mismatch between
the value of ifp->if_link_state and the IFF_UP|IFF_RUNNING code.
I'd explain the RTF_UP flag as follow:
. If a cached route entry w/o RTF_UP is passed to ip{6,}_output(),
. call rtalloc(9) to see if a better entry is present in the tree.
This is enough to support MPATH and route cache invalidation.
ok bluhm@
