I have a fix for: 6640357 ifconfig: cannot open link "ip6.tun(n)": Invalid argument
http://zhadum.east/ws/seb/seb_uvfix/webrev/ The fix is to have dls_mgmt_get_linkid() return an error code rather than a link id (since it can fail for a multitude of reasons that DATALINK_INVALID_LINKID cannot represent), and have it pass back the error returned by i_dls_mgmt_upcall() instead of always returning DATALINK_INVALID_LINKID. dls_mgmt_get_linkid() should also explicitly return ENOENT in a number of cases instead of EINVAL. I've tested the fix manually using ifconfig. If folks are okay with this, I'll put it back and provide PIT with a fix. -Seb
