* TRACEKIT
* FRAGMENTATION [Ji Lu]
* HTTP transport
-* MySQL / Postgres plugins (datastore, datacache) [Radhika]
+* MySQL / Postgres plugins (datastore, datacache)
* UPNP [Milan]
-
-Urgent items (before announcing ng.gnunet.org):
-* topology
- - needs testing
-* hostlist
- - test fails (peers don't connect quickly, could be topology issue)
- - crashes:
-(gdb) print pos
-$1 = (struct GNUNET_TRANSPORT_TransmitHandle *) 0x21
-(gdb) print h
-$2 = (struct GNUNET_TRANSPORT_Handle *) 0x21775d0
-(gdb) print *h
-$3 = {cls = 0x454d414e54534f48, rec = 0x7f66983d7e00 <_IO_stdfile_0_lock>, nc_cb = 0x4010d8 <notify_connect+128>, nd_cb = 0x21, my_hello = 0x736f686c61636f6c, client = 0x7f66983d0074, network_handle = 0x0, connect_wait_head = 0x21, connect_ready_head = 0x21775b0,
- hwl_head = 0x2177630, sched = 0x2177650, cfg = 0x21, neighbours = 0x54524f5050545448, reconnect_task = 140078617558528, reconnect_delay = {value = 1000}, transmission_scheduled = 33}
-(gdb) ba
-#0 0x00007f6698a2143c in add_neighbour (h=0x21775d0, quota_out=1, latency=..., pid=0x7fff2d320bd0) at transport_api.c:1383
-#1 0x00007f6698a21d70 in demultiplexer (cls=0x21775d0, msg=0x7fff2d320bc0) at transport_api.c:1645
-#2 0x00007f66985ed452 in receive_task (cls=0x2177470, tc=0x7fff2d320ca0) at client.c:491
-#3 0x00007f6698609caa in run_ready (sched=0x7fff2d320d10) at scheduler.c:482
-#4 0x00007f669860a0ba in GNUNET_SCHEDULER_run (task=0x7f66986069a8 <program_main>, task_cls=0x7fff2d320f20) at scheduler.c:609
-#5 0x00007f6698606ffc in GNUNET_PROGRAM_run (argc=5, argv=0x7fff2d321000, binaryName=0x401b3f "st-gnunetd-hostlist-peer-2", binaryHelp=0x401b86 "", options=0x7fff2d320fc0, task=0x401638 <run+128>, task_cls=0x602360) at program.c:223
-
-* CORE:
- - soliciting traffic for clients that registered for it is not implemented
- (in the service, client API supports GNUNET_MESSAGE_TYPE_CORE_SOLICIT_TRAFFIC
- but never receives any such messages); how to avoid busy-waiting here
- is a good question (solicit => nothing, when to solicit again???)
- - crashes:
-#0 0x00007ffff7072f55 in *__GI_raise (sig=<value optimized out>)
- at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
-#1 0x00007ffff7075d90 in *__GI_abort () at abort.c:88
-#2 0x00007ffff7bdfc68 in produce_configure_message (cls=0x61c480, size=65536,
- buf=0x65a008) at core_api.c:932
-#3 0x00007ffff7bde53c in request_start (cls=0x6213c0, size=65536,
- buf=0x65a008) at core_api.c:336
-#4 0x00007ffff75a6c90 in client_notify (cls=0x634110, size=65536,
- buf=0x65a008) at client.c:822
-#5 0x00007ffff75ac3f8 in process_notify (sock=0x659f30) at connection.c:1218
-#6 0x00007ffff75ac7f3 in transmit_ready (cls=0x659f30, tc=0x7fffffffdbe0)
- at connection.c:1358
-#7 0x00007ffff75c2caa in run_ready (sched=0x7fffffffdc50) at scheduler.c:482
-#8 0x00007ffff75c30ba in GNUNET_SCHEDULER_run (
- task=0x7ffff75bf9a8 <program_main>, task_cls=0x7fffffffde60)
- at scheduler.c:609
-#9 0x00007ffff75bfffc in GNUNET_PROGRAM_run (argc=5, argv=0x7fffffffe018,
- binaryName=0x403fbb "topology",
- binaryHelp=0x403f78 "GNUnet topology control (maintaining P2P mesh and F2F constraints)", options=0x6048c0, task=0x4031fd <run>, task_cls=0x0)
- at program.c:223
-#10 0x000000000040353c in main (argc=5, argv=0x7fffffffe018)
- at gnunet-daemon-topology.c:1303
-* TRANSPORT:
- - crashes:
-(gdb) ba
-#0 0x00007ffff5d0d3d4 in disconnect_session (session=0x656700)
- at plugin_transport_tcp.c:797
-#1 0x00007ffff5d0d74c in session_try_connect (cls=0x656700, peer=0x0,
- hello=0x0, trust=0) at plugin_transport_tcp.c:990
-#2 0x00007ffff7bdf26e in info_handler (cls=0x6306e0, msg=0x7fffffffda60)
- at peerinfo_api.c:180
-#3 0x00007ffff79b0452 in receive_task (cls=0x69ec40, tc=0x7fffffffdb00)
- at client.c:491
-#4 0x00007ffff79cccaa in run_ready (sched=0x7fffffffdb70) at scheduler.c:482
-#5 0x00007ffff79cd0ba in GNUNET_SCHEDULER_run (
- task=0x7ffff79d1898 <service_task>, task_cls=0x7fffffffde10)
- at scheduler.c:609
-#6 0x00007ffff79d27e1 in GNUNET_SERVICE_run (argc=3, argv=0x7fffffffe028,
- serviceName=0x405e6b "transport", opt=GNUNET_SERVICE_OPTION_NONE,
- task=0x4055c9 <run>, task_cls=0x0) at service.c:1345
-#7 0x0000000000405870 in main (argc=3, argv=0x7fffffffe028)
- at gnunet-service-transport.c:2784
-
-
-* FS (basic anonymous FS only)
- - implement FS service (P2P operations)
- + how to send queries (soliciting is not there in core; do we
- also want to do pushing sometimes?)
- + need to bound queueing of replies for other peers
- - test multi-peer search/download
-* new webpage
- - run peer => have a 0.9.x hostlist
- - improve basic documentation (configure, dependencies, what works, etc.)
- - write minimal welcome/introduction to 0.9.x-development/webpage/status
-=> Deploy(able) development network
-
+* ARM [Safey]
+* FS [Christian]
0.9.0pre0:
-* UTIL:
- - load: need way to determine network load (up/down)
- - trust: need *fast* way to check/update trust in peers
- (async peerinfo would not be right)
- - OS: existing waitpid call is not nice (not integratable with scheduler! fix this!)
-* STATISTICS:
- - synchronous/asynchronous API (& implementation) is not nice
- - 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!]
-* Module features to implement:
+* CORE:
+ - SET_KEY is triggered every 2.5 minutes (after session is up); should
+ just do PING (not SET_KEY + PING)
+ - "Forcing disconnect of XXX due to inactivity" -- can happen every few MS!?
+ (disconnect does not really succeed, or what?)
+ Also, core does not seem to actually decrement the number of active
+ sessions even if no connections exist for a while! (likely related...)
+ - transport reports bw quota violations on big-endian systems (core or
+ transport issue?)
+* FS:
+ - gnunet-publish cannot be aborted using CTRL-C
+ - on some systems, keyword search does not find locally published content
+ (need testcase of command-line tools!)
+ - 2-peer download is still too slow (why?)
- advanced FS API parts
- + namespaces: fundamental namespace API
- + search: SBlocks, KSBlocks, probes, notify FS-service of known results
- + collection
+ + search: SBlocks, NBlocks, probes, notify FS-service of known results
+ 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, many other nitpicks/features/optimizations)
- + datastore: do active migration support here?
+ + gnunet-service-fs (remove failing on-demand blocks, hot-path routing, load-based routing, nitpicks)
- implement adv. FS testcases
+ getopt API
+ insert: sblocks, loc uris
+ download: loc uris
- + search: sblocks, skblocks, loc uris
+ + search: sblocks, nblocks, loc uris
+ namespaces
- + collection
- - implement FS performance tests (needs TESTING)
- + 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]
+ - [./fs/gnunet-service-fs.c:208]: (style) struct or union member 'LocalGetContext::results_bf_size' is never used
+ - [./fs/gnunet-service-fs.c:501]: (style) struct or union member 'PendingRequest::used_pids_size' is never used
+ - [./fs/gnunet-service-fs.c:654]: (style) struct or union member 'ConnectedPeer::last_client_replies' is never used
+ - [./fs/gnunet-service-fs.c:669]: (style) struct or union member 'ConnectedPeer::avg_delay' is never used
+ - [./fs/gnunet-service-fs.c:675]: (style) struct or union member 'ConnectedPeer::avg_priority' is never used
+ - [./fs/gnunet-service-fs.c:688]: (style) struct or union member 'ConnectedPeer::pending_requests' is never used
+ - [./fs/gnunet-service-fs.c:694]: (style) struct or union member 'ConnectedPeer::last_p2p_replies_woff' is never used
+ - [./fs/gnunet-service-fs.c:700]: (style) struct or union member 'ConnectedPeer::last_client_replies_woff' is never used
+
+* WWW:
+ - Get IPv6 hooked up
+ - change DNS
0.9.0pre1:
* Module features to implement:
+ implement DV transport plugin [Nate & CG]
+ implement testcases [Nate]
+ implement performance tests [Nate]
+* SETUP:
+ - design & implement new setup tool
* GUIs to implement:
- gtk (RC-pre1)
+ how to integrate scheduler with GTK event loop!
+* STATISTICS:
+ - does not seem to work with timeouts (especially if service is not running)
+* UTIL:
+ - trust: need *fast* way to check/update trust in peers
+ (async peerinfo would not be right)
+ - 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.]
+* FS:
+ - datastore reservation (publishing)
+ - persistence support (publish, unindex, search, download)
+ - download: management/bounding of parallel downloads (for recursive dl.)
+ - non-anonymous FS service (needs DHT)
+ + basic DHT integration
+ + CS-DHT-functions (DHT-put of LOC)
+ + P2P-functions (DHT-get)
+ - active migration support (in fs or in datastore or new daemon?)
+ - GAP improvements:
+ + active reply route caching design & implementation of service; gap extension!
+* TOPOLOGY:
+ - needs more testing (especially F2F topology)
+ - 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).
+ - 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.
+ - 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!
+* HELLO:
+ - need function to test "equivalency" of HELLOs (or integrate with "merge"?); use in PEERINFO
0.9.0pre2:
* Module features to implement:
+ Fragmentation library
+ actual plugin
- HTTP backend (RC-pre2)
+* 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]
+ - 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:
+ - collection API & tests
+ - implement FS performance tests
+ + insert
+ + download
+ + search
+ + unindex
+
0.9.0pre3:
* GUIs to implement:
- qt (RC-pre3)
+ see discussions @ FISL about integration with event loop!
* Determine RC bugs and fix those!
+* TESTING:
+ - modify configuration to allow controlling connections for non-local starts
+ - testbed creation with topology (needs working F2F topology) [Nate]
+ - testbed with churn [Nate]
+ - implement testcases for distributed testing [Nate]
+ - test basic peer re-configure [Nate]
+ - test topology creation [Nate]
+ - test churn generation [Nate]
+ - consider changing API for peer-group termination to
+ call continuation when done
+
0.9.0:
* Documentation
0.9.x:
-* Plugins to implement:
+* TRANSPORT:
- 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)
+ - 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:
+ - 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:
+ - 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
+
+
+
+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]
+
+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)
+