-Implementable right now (but not necessarily important), with caveats
-(unavailable components that will limit what can be implemented right
-away), in order in which they will likely be done:
-* TESTING-TESTBED [Nate]
-* SETUP
-* DV [Nate]
-* TBENCH
-* TRACEKIT
-* FRAGMENTATION [Ji Lu]
-* HTTP transport
-* MySQL / Postgres plugins (datastore, datacache)
-* UPNP [Milan]
-* ARM [Safey]
+0.9.0pre0 [April]:
+* NAT: peer behind NAT fails to bootstrap: we never get a session key from the other peer
+ (but we DO get a PONG to our PING!) [CG]
+* FS-acceptance testing [CG]
+* Release checks:
+ - portability
+ - coverity
+ - clang
+ - cppcheck
+* ChangeLog update
+* WWW:
+ - Get IPv6 hooked up [AK, after April 12th]
+ - change DNS [CG, need DNS]
-0.9.0pre0:
-* UTIL:
- - load: need way to determine network load (up/down)
+0.9.0pre1:
+* PEERINFO:
- trust: need *fast* way to check/update trust in peers
- (async peerinfo would not be right)
-* TRANSPORT:
- - disconnect notifications from TCP not always as nice as we might want
- them to be (but how can we do this cleanly given that UDP is connectionless?)
- - TCP not used bi-directionally (especially important also for PONG!)
- - hostlist testcase shows that (randomly) we jump to an address that
- seems to be a plugin function *after* the plugin has been unloaded
- (directly from scheduler); check that *all* plugin tasks are cancelled
- after plugin is unloaded! (need better testcases for that...)
+ (async peerinfo would not be right; certainly not with the
+ current API)
+* UTIL:
+ - scheduler should change OS process priority based on task priority;
+ should make better use of task priorities in general
+ - only connect() sockets that are ready (select()) [Nils]
+ [On W32, we need to select after calling socket before
+ doing connect etc.]
+* SETUP:
+ - design & implement new setup tool
+* 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
* STATISTICS:
- - synchronous/asynchronous API (& implementation) is not nice;
- => provide notification-based API
- does not seem to work with timeouts (especially if service is not running)
-* ARM:
- - 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]
-* HELLO:
- - need function to test "equivalency" of HELLOs; use in topology!
* TOPOLOGY:
- needs more testing (especially F2F topology)
-* CORE:
- - needs more testing
-* FS:
- - gnunet-publish cannot be aborted using CTRL-C
- - 2-peer download is still too slow (why?)
-* Module features to implement:
- - advanced FS API parts
- + namespaces: fundamental namespace API
- + search: SBlocks, KSBlocks, probes, notify FS-service of known results
- + collection
- + location URIs (publish, search, download)
- + persistence support (publish, unindex, search, download)
- + indexing: index-failure-cleanup
- + download: management/bounding of parallel downloads (for recursive dl.)
- + datastore reservation (publishing)
- + gnunet-publish (URI args)
- + gnunet-download (directory)
- + gnunet-search (options, incl. namespace search)
- + gnunet-download (many options)
- + gnunet-directory (man page, options)
- + gnunet-pseudonym (all of it)
- + gnunet-service-fs (remove failing on-demand blocks, stats, hot-path routing, load-based routing, nitpicks)
- + datastore: do active migration support here?
- - implement adv. FS testcases
- + getopt API
- + insert: sblocks, loc uris
- + download: loc uris
- + search: sblocks, skblocks, loc uris
- + namespaces
- + collection
- - implement FS performance tests (needs TESTING)
+ - needs to re-try connecting after disconnect (currently, it
+ initially triggers a connection request, but if that connection
+ fails / goes down, it does not retry in a timely fashion;
+ cause seems to be the 'blacklist_after_attempt' being set to 1h,
+ which is rather long -- and should probably be adjusted based on
+ the number of connections / known peers)
+ - If the topology daemon crashes, peers that were put on the
+ blacklist with transport will never be removed from it (until
+ transport service dies); we should use the blacklist notification
+ API to learn about the exact set of blacklisted peers at all times
+ (FIXME: the transport_api implementation of blacklisting
+ also does not work nicely for this since it won't let us know about
+ disconnect-reconnect events and the implicit whitelisting
+ that might happen here; that's not so bad since we will
+ re-blacklist on pre-connect attempts anyway, so this is
+ a minor issue; OTOH, we might want to be more explicit about
+ allowing/forbidding connects on pre-connect to avoid
+ entering connect attempts to just be blacklisted shortly afterwards).
+ - the code uses the term 'blacklist' for both peers that are forbidden
+ to connect (i.e. F2F mode) as well as peers that we currently
+ won't try to actively connect to ourselves (since we just tried);
+ This is confusing. We need two distinct terms (greylist?).
+ - move code to use hash table instead of linked list
+ - instead of periodically discarding blacklisted entries,
+ simply add task that is triggered at the right time (earlier free,
+ more balanced load)
+ - check if new HELLO learned is different from old HELLO
+ before resetting entire state!
+* 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!
+* DATASTORE:
+ - API lacks cancellation methods (needed? or is disconnect enough?);
+ may also want to integrate request queuing here instead of gnunet-service-fs_drq.c
+* 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 "tak_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"?
+
+0.9.0pre2:
+* TRACEKIT: [MW]
+ - good to have for DV/DHT evaluation!
+* DHT: [Nate]
+ - implement DHT service
+ - implement DHT library
+ - 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
- - non-anonymous FS service (needs DHT)
- + basic DHT integration
- + CS-DHT-functions (DHT-put of LOC)
- + P2P-functions (DHT-get)
- - setup (RC-pre0)
- + default generation
- + need to settle basic design; do we want to keep guile?
- - testing (RC-pre0)
- + modify configuration to allow controlling connections for non-local starts
- + testbed creation with topology (needs working F2F topology) [Nate]
- + testbed with churn [Nate]
- + implement library for distributed testing [Nate]
- + implement testcases for distributed testing [Nate]
- + test basic peer re-configure [Nate]
- + test topology creation [Nate]
- + test churn generation [Nate]
-* WWW:
- - Get IPv6 hooked up
- - change DNS
-
-0.9.0pre1:
-* Module features to implement:
- - tbench (RC-pre1)
- + good to have for DV evaluation!
- - DV (RC-pre1)
- + write DV API
- + implement DV service [Nate & CG]
- + implement DV library [Nate]
- + implement DV transport plugin [Nate & CG]
- + implement testcases [Nate]
- + implement performance tests [Nate]
-* GUIs to implement:
- - gtk (RC-pre1)
- + how to integrate scheduler with GTK event loop!
-
-0.9.0pre2:
-* Module features to implement:
- - tracekit (RC-pre2)
- + good to have for DV/DHT evaluation!
- - DHT (RC-pre2)
- + implement DHT service (needs DV, DATACACHE)
- + implement DHT library
- + implement testcases
- + implement performance tests
-* GUIs to implement:
- - fuse (RC-pre2)
-* Plugins to implement:
- - UDP backend (RC-pre2)
- + Fragmentation library
- + actual plugin
- - HTTP backend (RC-pre2)
0.9.0pre3:
-* GUIs to implement:
- - qt (RC-pre3)
- + see discussions @ FISL about integration with event loop!
* 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:
-* Documentation
- - update man pages
- - update webpage documentation
* new webpage:
- expand bibliography
- convert documentation pages to books
enable developers to publish TGZs nicely
- port "contact" page
- add content type for "todo" items?
- - DNS activation
-* Plugins to implement:
- - MySQL database backends
- + datacache
- + datastore
- - Postgres database backends
- + datacache
- + datastore
- - vpn
+* POSTGRES database backends: [CG]
+ - datacache
+ - datastore
* Determine RC bugs and fix those!
-
0.9.x:
-* Plugins to implement:
+* TRANSPORT: [MW]
- SMTP transport backend
- HTTPS transport backend
+ improved HTTPS support in MHD
+ actual plugin
-* 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)
-* STATISTICS:
- - should use BIO instead of mmap
-* PEERINFO:
+ - 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
+* PEERINFO:
+ - api creates many, many short-lived TCP connections; either some
+ clients should use the API differently or we need to change the
+ API to enable re-use of connections to the service
+* 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) [OPTIMIZATION]
+* 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)
+
projects / oweals / gnunet.git / blobdiff