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0.9.0pre1:
* PEERINFO: [CG]
  - trust: need *fast* way to check/update trust in peers
           (async peerinfo would not be right; certainly not with the current API)
* TRANSPORT: [CG]
  - need to implement and test new blacklisting code (server-side only, client API exists)
* TOPOLOGY: [CG]
  - needs more testing (especially F2F topology) -- need transport blacklisting to be implemented first!
* FS: [CG]
  - support recursive download even if filename is NULL and we hence
    do not generate files on disk (use temp_filename)
  - bound parallelism (# fs downloads)
  - distinguish in performance tracking and event signalling between
    downloads that are actually running and those that are merely in the queue
  - persistence support (publish, unindex, search, download)
  - active migration support (in fs or in datastore or new daemon?)
  - gnunet-service-fs (hot-path routing, load-based routing, nitpicks)
  - [gnunet-service-fs.c:208]: member 'LocalGetContext::results_bf_size' is never used
  - [gnunet-service-fs.c:501]: member 'PendingRequest::used_pids_size' is never used
  - [gnunet-service-fs.c:654]: member 'ConnectedPeer::last_client_replies' is never used
  - [gnunet-service-fs.c:669]: member 'ConnectedPeer::avg_delay' is never used
  - [gnunet-service-fs.c:675]: member 'ConnectedPeer::avg_priority' is never used
  - [gnunet-service-fs.c:688]: member 'ConnectedPeer::pending_requests' is never used
  - [gnunet-service-fs.c:694]: member 'ConnectedPeer::last_p2p_replies_woff' is never used
  - [gnunet-service-fs.c:700]: member 'ConnectedPeer::last_client_replies_woff' is never used
  - GAP improvements:
    + active reply route caching design & implementation of service; gap extension!
* TBENCH: [MW]
  - good to have for transport/DV evaluation! 
* DV: [Nate]
  - write DV API (need to move declarations from dv_api.c to gnunet_dv_service.h!)
  - implement DV service 
  - implement DV library (looks done)
  - implement DV transport plugin
  - implement testcases 
  - implement performance tests
* UTIL:
  - only connect() sockets that are ready (select()) [Nils]
    [On W32, we need to select after calling socket before doing connect etc.]
* GNUNET-GTK:
  - use g_main_context_set_poll_func to integrate GTK with GNUnet Scheduler!? (YUCK!)
  - OR: add scheduler API to enable integration with GTK main loop instead of doing our own select
  - use g_main_context_pending, g_main_context_query / g_main_context_check / g_main_context_dispatch
    and NEVER g_main_loop_run (can this be done? might be the clean way to do this! But how
    to integrate this with "gtk_main"?  Docu says:
    "It's OK to use the GLib main loop directly instead of gtk_main(), though it involves 
     slightly more typing. See GMainLoop in the GLib documentation."
    => so maybe it "just works"?
* SETUP:
  - design & implement new setup tool

0.9.0pre2:
* TRACEKIT: [MW]
  - good to have for DV/DHT evaluation!
* DHT: [Nate]
  - implement DHT service 
  - implement testcases
  - implement performance tests
* TRANSPORT:
  - HTTP backend [MW]
* ARM: [Safey]
  - need to get rid of synchronous API for service starts (cause all kinds of problems)
    [=> eliminate for need to tell ARM about service starts most of the time!] [Safey]
  - better tracking of which config changes actually need to cause process restarts by ARM.
  - listen for requests to discover dependencies between services (and avoid
    having to explicitly program start requests)
  - better crash management (attach debugging support, capture and analyze
    debug output, detect random vs. deterministic crashes)
  - shutdown sequence?
* FS: [CG]
  - datastore reservation (publishing)
  - search: availability probes
  - location URIs (publish, search, download)
  - non-anonymous FS service (needs DHT)
    + DHT integration for search
    + CS-DHT-functions (DHT-put of LOC)
    + P2P-functions (DHT-get)
  - collection API & tests
    + gnunet-pseudonym (collection support)
  - implement FS performance tests
    + insert
    + download
    + search
    + unindex

0.9.0pre3:
* Determine RC bugs and fix those!
* TESTING: [Nate]
  - modify configuration to allow controlling connections for non-local starts
  - testbed creation with topology (needs working F2F topology) 
  - testbed with churn 
  - implement testcases for distributed testing
  - test basic peer re-configure 
  - test topology creation 
  - test churn generation 
  - consider changing API for peer-group termination to 
    call continuation when done
* NAT/UPNP: [MW]
  - finalize API design
  - code clean up
  - testing
  - integration with transport service
* MYSQL database backends: [CG]
  - datacache
  - datastore

0.9.0:
* new webpage:
  - expand bibliography
  - convert documentation pages to books
  - update books (especially for developers)
  - create good Drupal theme for GNUnet
  - make a NICE download page and figure out how to 
    enable developers to publish TGZs nicely
  - port "contact" page
  - add content type for "todo" items?
* POSTGRES database backends: [CG]
  - datacache
  - datastore
* Determine RC bugs and fix those!

0.9.x:
* TRANSPORT: [MW]
  - SMTP transport backend
  - HTTPS transport backend
    + improved HTTPS support in MHD
    + actual plugin
  - Implement method of learning our external addresses from
    other peers; need some kind of threshold-based
    scheme, limiting both the total number of addresses that we accept 
    this way as well as requiring multiple confirmations; also, we
    should possibly try to confirm that the given address works for
    us ourselves (loopback-style) before adding it to the list
    + we may be able to simplify WELCOME messages (no need to add 
      addresses there anymore, but may help to learn them there anyway...).
    + we probably want some kind of voting/counting for learning IP addresses
      (maybe including IP addresses in ads proportional to how often others
       report them? we at least need some protection against >64k HELLOs!),
    + provide a way to give the user a list of "learned" IP addresses and
      a way to easily "veto" addresses off the list!
      => If MiM attacker uses vetoed address, blacklist the specific IP for
         the presumed neighbour!
  - implement gnunet-transport (transport configurator / tester)
  - UPnP-based IP detection
    (Note: build library always, build service when libxml2/etc. are available)
* FS: [CG]
  - Remove KBlocks in gnunet-unindex (see discussion with Kenneth Almquist on gnunet-devs in 9/2009)
  - Allow checking of presence of search results and/or content via command-line tools
    (add options to gnunet-search / gnunet-download to limit search to local peer)
* PEERINFO: [CG]
  - expire 'ancient' HELLOs (those without valid addresses AND that 
    we have not 'used' (for their public keys) in a while; need a way
    to track actual 'use')
  - make sue we also trigger notifications whenever HELLOs expire
* VPN



Optimizations:
* TCP:
  - should use hash map to look up sessions
* STATISTICS:
  - should use BIO instead of mmap
* TRANSPORT:
  - need to periodically probe latency/transport cost changes & possibly switch transport
  - instantly filter addresses from *other* peers that 
    are *equal* to our own address + port (i.e., localhost:2086).  We 
    no longer filter those for outgoing (helps with loopback testing
    and keeps the code clean), but we should filter strictly *impossible*
    incoming addresses!  This is for efficiency, not correctness.
  - should use hash map to look up Neighbours
* HOSTLIST:
  - 'server' uses 'GNUNET_PEERINFO_iterate', should probably switch to notification API
    (for more instant / up-to-date hostlists at lower cost)
* DATASTORE (?):
  - check for duplicates on insertion (currently, same content is frequently
    stored again [seen with KBLOCKS and SBLOCKS]!)

Minor features:
* TCP:
  - repeatedly resolve hostname and look up interfaces to determine our own IP
  - [./transport/plugin_transport_tcp.c:391]: (style) struct or union member 'Plugin::address_update_task' is never used (related to issue above)
* TRANSPORT:
  - [./transport/gnunet-service-transport.c:173]: (style) struct or union member 'TransportPlugin::rebuild' is never used (related to TCP not refreshing external addresses?)
* DATACACHE:
  - add stats (# bytes available, # bytes used, # PUTs, # GETs, # GETs satisfied)
* FS:
  - support inline data in directories for recursive file downloads (fs_download)