merge of 'daniel/controlif' branch

Hi! After many delays on my side (it kept falling off my TODO list), I have finally merged the daniel/controlif branch earlier today. For those who haven't heard about it so far: It is code that allows us to remotely get and/or set attributes of the BSC. Furthermore, it supports traps (similar to SNMP traps). The idea of it is to allow us to have centralized management of networks with many OpenBSC installations, offering SNMP-like feel but without adding the complexity of SNMP (asn.1, etc.) to OpenBSC itself. We might at some point have an independent gateway process that exports the attributes through real SNMP, but that mostly depensd on whether any production networks have such a requirement or not. The control interface is implemented either stand-alone (for osmo-nitb) or via the regular A and A-bis/IP as an additional ip.access stream identifier. Thanks to Daniel for writing the code, to On-Waves for funding the development and once again my apologies for the delays. btw: I have done a couple of cosmetic clean up commits in addition to Daniels branch, hopefully I didn't break anything while doign that... Regards, Harald -- - Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)