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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>I just started using libnl and am quite impressed. I’ve found a few small bugs that I’ll post patches for in the near future.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>My dilemma is how to handle the different types of RTM_NEWLINK messages for the different address families.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I create an nl_cache_mgr, and then call nl_cache_mngr_add() for “route/link”. This works great, until I do something that causes a change to the IPv6 configuration. Then I get an RTM_NEWLINK message for family PF_INET with completely different attributes. This messages replaces the one in the cache, discarding useful information in the PF_UNSPEC family message that was in the cache.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I’d like to maintain the messages from both families. Do I need to set up a separate cache structure and code for the AF_INET6 family messages? I see that the cache functionality has some support for this with the nl_cache.c_iarg1 attribute. But it doesn’t appear that there’s any way to de-multiplex incoming messages based on family. I also couldn’t find a way to just ‘get’ and ‘set’ protocol-family specific link message from the kernel.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Am I missing something, or doing things the wrong way? I’d be happy to make changes to the library that continued the existing design philosophy.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Jeff<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><b><span style='font-size:7.5pt;font-family:"Arial","sans-serif"'>Jeffrey M. Bushman</span></b><span style='font-size:7.5pt;font-family:"Arial","sans-serif"'> <span style='color:red'>|</span> <span style='color:gray'>Software Engineer 4</span><br><u><span style='color:blue'><a href="mailto:jbushman@ciena.com"><span style='color:blue'>jbushman@ciena.com</span></a></span></u> <span style='color:red'>|</span><span style='color:purple'> </span><span style='color:gray'>1185 Sanctuary Pkwy, Ste 300 </span><span style='color:red'>|</span><span style='color:purple'> </span><span style='color:gray'>Alpharetta, GA 30009 USA<br>Direct +1.678.867.3572 </span><span style='color:red'>|</span><span style='color:gray'> Fax +1.678.867.5101</span></span><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>