Peter Memishian writes: > > > Suggestion on existing solutions still welcome... > > Can you elaborate on why you need to do this within the kernel?
In addition to that (which I think is a pretty good question), I can answer the bit about locks: there aren't any. The SIOCGLIFNUM interface is Solaris-specific and only semi-useful. To use it effectively, you have to pad the number it returns with some small amount (say 10 entries), then be prepared to try and try again on SIOCGLIFCONF if the buffer happens to be too small. (It can be if there's someone busily plumbing up interfaces as you're making these calls.) When the "L"-type ioctls were added (Solaris 8, I think; part of the IPv6 work), there were some anomalies. The old standard BSD SIOCGIFCONF interface just has you allocate an arbitrary size buffer, then reallocate and retry (usually doubling size on each iteration) if the returned size is within one entry of full. That interface was simpler (no need or way to get a count first) and generally worked fine. I don't know why SIOCGLIFNUM was added -- it wasn't really necessary, and can't be made to be _precise_ -- but all it can do is given you a rough starting point. -- James Carlson, Solaris Networking <[EMAIL PROTECTED]> Sun Microsystems / 35 Network Drive 71.232W Vox +1 781 442 2084 MS UBUR02-212 / Burlington MA 01803-2757 42.496N Fax +1 781 442 1677 _______________________________________________ opensolaris-code mailing list opensolaris-code@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/opensolaris-code
