TODO

distro/packaging:
 - (issue) check why systemd doesn't let me set scheduler priority
           fixed for systemd unit file, LSB init + systemd still fails
           https://bugzilla.redhat.com/show_bug.cgi?id=893015

link/host level:
 - (issue) simplify handling of DATA and HOSTINFO code paths in send/recv code
 - (issue) need bind to interface for dynamic ip local interfaces vs src ip
           address or find a way to autodetect the new ip on that interface
           (listen to kernel netlink?)
 - (issue) must implement link auth via user/passwd. This is necessary
           in case key is leaked.
 - (issue) standardize exit labels (ex out_unlock / exit_unlock) and variable/function
           names.
 - (issue) review how TX onwire pckt info are filled in between inbuf/socket/frags
 - (rfe)   add tcp transport layer?
 - (rfe)   link status callback notification
 - (rfe)   compress: should only compress user data, we will add a bit in the data
                     header to indicate if the pckt is compressed or not (save time).
                     this approach allow runtime change of compress.
                     open questions are: methods? level? zlib? lzo? bz? lzma? xz?
                                        how much do we save by compressin our header?
           compress must happen before encrypt
           we can express compress data in packet type without adding extra
           flags to the headers. DATA -> BZ/GZDATA and we can change that
           right before encrypting. Using a similar approach to PING_MASK
 - (rfe)   crypto: expand API to support dual key for rekey process
 - (rfe)   link id made optional? right now we need the link id to match
           on both sides of the connection. this is somewhat annoying
           from a user perspective. Evaluate if we can make it optional.
 - (rfe)   make hostid autogenerated in a consistent way?
 - (rfe)   Check IPV6_NEXTHOP for v6 sockets and find equivalent for v4 (Jesper?)
           this would allow using one IP address as destination via multiple links
 - (rfe)   add statistics at different levels (pckt per host/link, bytes, crypto
           overhead, frame overhead, pure data...)
 - (rfe)   link connection access-list
           (chrissie has working generic code for this one, needs merging and API)
 - (rfe)   improve host-to-host communication. Right now I am not satisfied with
           the current implementation, even if it works.
 - (rfe)   implement link switching via scoring system based on:
           1) latency
           2) priority (auto/manual)
           3) usage (over XX% traffic start RR)
           4) flapping of the links (time/sec)
           this requires complex rules setting and a super efficent way to look
           up destination links
	   5) if links are stable, reduce the number of links in a-a
              min 2
 - (rfe)   benchmark tests for all critical paths in switching threads
 - (rfe)   network convergence protocol (host exchange)
 - (rfe)   reswitching of packets
 - (rfe)   look into UDP+ECN bit set to avoid overloading sockets?
 - (rfe)   add openssl support?
 - (rfe)   consider adding threadpools to process data packets in parallel

libknet:
 - (issue) review logging policy/levels in public api call
           example is scanning for active links in a host that would return
           a half gazzillion useless log entries
 - (issue) add .3 man pages

libtap:
 - (issue) add .3 man pages
 - (issue) improve tests to cover thread safety and better error codes
           specially from the up/down handling.
 - (rfe)   consider adding dhcp support for tap device
           it can be done now via up.d/ scripts, but it's not intuitive

kronostnetd:
 - (issue) beside the code that is as bad as it can possibly be and
           will make you wish to have a tea spoon handy to carve your
           eyeballs out, the vty needs a good clean/rewrite
 - (issue) fix config file format. current one will make you scream
 - (issue) missing output from several command execution failures in vty mode
 - (issue) fix check_param for ip/prefix/crypto
           (this is part of the rewrite as it needs more clever arg parsing
            code/method)
 - (rfe)   add logging config (per subsystem/global)
 - (rfe)   split vty_cmd_files to be smaller. it's just too big to handle
           nicely.
 - (rfe)   add equivalent of "description: ...." to various levels
 - (rfe)   add optional options. right now it's necessary to specify everything
           all the time.
 - (rfe)   implement tab completion on options

general:
 - (issue) missing unit tests on many many bits
 - (issue) missing docs of all kind, devel, users, admin guide.
 - (rfe)   check code with coverity