TODO 32 KB

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  1. $Id$
  2. Legend:
  3. SPEC!! - Not specified
  4. SPEC - Spec not finalized
  5. N - nick claims
  6. R - arma claims
  7. P - phobos claims
  8. S - Steven claims
  9. M - Matt/Mike claims
  10. J - Jeff claims
  11. I - ioerror claims
  12. W - weasel claims
  13. - Not done
  14. * Top priority
  15. . Partially done
  16. o Done
  17. d Deferrable
  18. D Deferred
  19. X Abandoned
  20. =======================================================================
  21. External constraints:
  22. - Mid Apr
  23. - More Torbrowser work:
  24. o Get polipo into it
  25. I - Figure out who at Mozilla can give us permission to keep the
  26. name Firefox on our Tor Browser Bundle. Get said permission.
  27. o Make Torbrowser website
  28. o Get it integrated into the Tor download pages
  29. S - Finish first cut at integrating upnp lib into Vidalia
  30. R - get the geoip files onto some bridge relays, and gather stats
  31. - End of April
  32. S - Zip-splitting:
  33. - Document the use of 7-zip to combine fractional files and
  34. reconstruct them after download. Host such files.
  35. - If it's faster to research a self-extracting splitter
  36. and use it, with simpler documentation, that's obviously fine.
  37. N - Investigate and start resolving (or declare unresolvable) the ram
  38. issue for relays. Investigate and document all of, and do at
  39. least two of:
  40. o better buffer approaches in Tor
  41. - better buffer approaches in openssl
  42. o shipping Tor with its own integrated allocator.
  43. N - Write a draft research proposal for how to safely collect and
  44. aggregate some GeoIP data from non-bridge entry nodes, or conclude
  45. that we don't know how to do it safely while still being useful
  46. and explain why.
  47. I - Translation portal
  48. - Vidalia translations (via launchpad?)
  49. - Vidalia installer translations
  50. - Torbutton translations (via babelzilla?)
  51. o Torbutton is registered with launchpad and babelzilla
  52. o https://launchpad.net/torbutton
  53. - An old babelzilla version of Torbutton requires an update
  54. - Centralized instructions for how to help translate
  55. - Continue managing the tor-translations team to keep the Tor
  56. website translated
  57. - End of May
  58. S - More TorBrowser work
  59. - Integrate pidgin and OTR
  60. - move portablefirefox nsi goo into vidalia as appropriate
  61. - Figure out (or give up on) how to run Tor Browser and ordinary
  62. Firefox side-by-side.
  63. - mid June
  64. R - SRI stuff
  65. - mid June
  66. - More TorBrowser work
  67. S - Firefox extension framework for Torbrowser build-time
  68. S - Progress bar during startup, including some "timeout" events to
  69. indicate when Tor's unlikely to succeed at startup.
  70. R - Make Tor put out appropriate events
  71. M - Let Vidalia notice them and change its appearance
  72. S - Enumerate and analyze traces left when running from USB
  73. R - Finish tor-doc-bridge.wml
  74. - More bridgedb work:
  75. R - Get the dkimproxy patch in
  76. ? - Brainstorm about safe but effective ways for vidalia to
  77. auto-update its user's bridges via Tor in the background.
  78. NR - Include "stable" bridge and "port 443" bridge and "adequately
  79. new version" bridge free in every specially marked
  80. box!^W^W^Woutput batch.
  81. N - Detect proxies and treat them as the same address
  82. - More back-end work:
  83. N - If we decided above that we know how to collect geoip data for
  84. non bridge relays, deploy that plan.
  85. N - Additional TLS-camouflage work (spoofing FF cipher suite, etc.)
  86. - spoof the cipher suites
  87. - spoof the extensions list
  88. - red-team testing (a.k.a, look at a packet dump and compare),
  89. - investigate the feasibility of handing connections off to a
  90. local apache if they don't look like Tor or if they don't
  91. portknock or whatever.
  92. W - Get closer to downloading far fewer descriptors
  93. - Instrument the code to track how many descriptors we download vs how
  94. many times we extend a circuit.
  95. - Write a proposal for how to fetch far fewer descriptors; assess
  96. anonymity attacks, like from looking at the size of the
  97. descriptor you fetch.
  98. I - Translation portal
  99. - Torbutton webpage
  100. o Torbrowser webpage
  101. - Tor website
  102. - check.torproject.org
  103. - should we i18nize polipo's error messages too?
  104. - August
  105. I - Auto update
  106. o Vidalia learns when Tor thinks it should be updated
  107. R - Tor status events should suggest a new version to switch to
  108. I - Figure out a good PKI, document the design, assess security issues:
  109. "write a proposal"
  110. - Vidalia fetches the new one via Tor when possible, but fetches
  111. it without Tor "when necessary", whatever that means.
  112. - Give an interface for notifying the user, and letting her
  113. decide to fetch and decide to swap out the old Tor for the new.
  114. - Do the same for Polipo
  115. - and for Vidalia itself
  116. =======================================================================
  117. Things Roger would be excited to see:
  118. Nick
  119. - Send or-dev email about proposal statuses and about window for
  120. new proposals.
  121. - Finish buffer stuff in libevent; start using it in Tor.
  122. - Tors start believing the contents of NETINFO cells.
  123. - Get a "use less buffer ram" patch into openssl.
  124. - Work with Steven and Roger to decide which parts of Paul's project
  125. he wants to work on.
  126. Matt
  127. - Fit Vidalia in 640x480 again.
  128. - When user changes the language in Vidalia, have it change right then.
  129. - Vidalia should display/edit PlaintextPorts events/config.
  130. . Vidalia's GUI should let you specify an http proxy that it launches
  131. for you. Maybe in the general config window next to which Tor it
  132. launches for you.
  133. - Vidalia should avoid stomping on your custom exit policy lines
  134. just because you click on 'save' for a totally different config thing.
  135. ioerror
  136. - gmail auto responder so you send us an email and we send you a Tor
  137. binary. Probably needs a proposal first.
  138. - weather.torproject.org should go live.
  139. - Learn from Steven how to build/maintain the Tor Browser Bundle.
  140. - Learn from Mike how to run SoaT, and try to make that an automated
  141. service somewhere.
  142. - Keep advocating new Tor servers and working with orgs like Mozilla
  143. to let them like Tor.
  144. - Start converting critical wiki pages into real Tor wml pages. E.g.,
  145. https://wiki.torproject.org/noreply/TheOnionRouter/VerifyingSignatures
  146. - Find out what happened to the buildbot and get it back up:
  147. http://tor-buildbot.freehaven.net:8010/
  148. Steven
  149. - Write a list of research items Tor would like to see done, for the
  150. volunteer page. Pick a few you'd like to work on yourself.
  151. - Move proposal 131 or equivalent forward.
  152. - Keep bugging us about exploits on the .exit notation.
  153. - If relays have 100KB/s but set relaybandwidthrate to 10KB/s, do your
  154. interference attacks still work?
  155. - Mike's question #3 on https://www.torproject.org/volunteer#Research
  156. Andrew
  157. - Which bundles include Torbutton? Change the docs/tor-doc-foo pages
  158. so they admit that Torbutton is in them too. Change the download
  159. page too.
  160. - The OS X bundle screenshots are from forever ago -- they don't
  161. include Torbutton, they still say it's tor.eff.org, etc.
  162. - Should we still be telling you how to use Safari on OS X for Tor,
  163. given all the holes that Torbutton-dev solves on Firefox?
  164. - Get Google excited about our T&Cs.
  165. Karsten
  166. . Make a hidden services explanation page with the hidden service
  167. diagrams. See img/THS-[1-6].png. These need some text to go along
  168. with them though, so people can follow what's going on.
  169. - We should consider a single config option TorPrivateNetwork that
  170. turns on all the config options for running a private test tor
  171. network. having to keep updating all the tools, and the docs,
  172. just isn't working.
  173. Weasel
  174. - Figure out how to make Vidalia and Tor play nicely on Debian, make
  175. the necessary modifications, and make some Vidalia debs that pass
  176. muster.
  177. - Fix bug 393.
  178. - Get oftc to switch to the Tor dns exitlist. Or tell us why it's
  179. not suitable yet.
  180. - Take non-Running entries out of the networkstatus consensus.
  181. - Move proposal 134 forward.
  182. Roger:
  183. . Fix FAQ entry on setting up private Tor network
  184. - Review Karsten's hidden service diagrams
  185. - Prepare the 0.2.0.x Release Notes.
  186. =======================================================================
  187. Bugs/issues for Tor 0.2.0.x:
  188. R - let bridges set relaybandwidthrate as low as 5kb
  189. R - bug: if we launch using bridges, and then stop using bridges, we
  190. still have our bridges in our entryguards section, and may use them.
  191. R - bridge communities
  192. . spec
  193. . deploy
  194. - man page entries for Alternate*Authority config options
  195. Documentation for Tor 0.2.0.x:
  196. - Proposals:
  197. . 111: Prioritize local traffic over relayed.
  198. R - Merge into tor-spec.txt.
  199. - 113: mark as closed close.
  200. N - document the "3/4 and 7/8" business in the clients fetching consensus
  201. documents timeline.
  202. R - then document the bridge user download timeline.
  203. - HOWTO for DNSPort. See tup's wiki page.
  204. . Document transport and natdport in a good HOWTO.
  205. - Quietly document NT Service options: revise (or create) FAQ entry
  206. =======================================================================
  207. For 0.2.1.x:
  208. - Proposals to do:
  209. - 110: avoid infinite-length circuits
  210. - 128: families of private bridges
  211. - 134: handle authority fragmentation.
  212. - Proposals to write:
  213. - Do we want to maintain our own set of entryguards that we use as
  214. next hop after the bridge?
  215. - Add an 'exit-address' line in the descriptor for servers that exit
  216. from something that isn't their published address.
  217. - Proposal to supersede 117 by adding IPv6 support for exits and entries.
  218. - Internal code support for ipv6:
  219. o Clone ipv6 functions (inet_ntop, inet_pton) where they don't exist.
  220. - Most address variables need to become tor_addr_t
  221. - Teach resolving code how to handle ipv6.
  222. - Teach exit policies about ipv6 (consider ipv4/ipv6 interaction!)
  223. - 118: Listen on and advertise multiple ports:
  224. - Tor should be able to have a pool of outgoing IP addresses that it is
  225. able to rotate through. (maybe. Possible overlap with proposal 118.)
  226. - config option to publish what ports you listen on, beyond
  227. ORPort/DirPort. It should support ranges and bit prefixes (?) too.
  228. (This is very similar to proposal 118.)
  229. - Fix voting to handle bug 608 case when multiple servers get
  230. Named.
  231. - Possibly: revise link protocol to allow big circuit IDs,
  232. variable-length cells, proposal-110 stuff, and versioned CREATES?
  233. - Eliminate use of v2 networkstatus documents in v3 authority
  234. decision-making.
  235. - Draft proposal for GeoIP aggregation (see external constraints *)
  236. - Separate Guard flags for "pick this as a new guard" and "keep this
  237. as an existing guard". First investigate if we want this.
  238. - Figure out how to make good use of the fallback consensus file. Right
  239. now many of the addresses in the fallback consensus will be stale,
  240. so it will take dozens of minutes to bootstrap from it. This is a
  241. bad first Tor experience. But if we check the fallback consensus
  242. file *after* we fail to connect to any authorities, then it may
  243. still be valuable as a blocking-resistance step.
  244. - Patch our tor.spec rpm package so it knows where to put the fallback
  245. consensus file.
  246. - Something for bug 469, to limit connections per IP.
  247. - Tiny designs to write:
  248. - Better estimate of clock skew; has anonymity implications. Clients
  249. should estimate their skew as median of skew from servers over last
  250. N seconds, but for servers this is not so easy, since a server does
  251. not choose who it connects to.
  252. - Do TLS connection rotation more often than "once a week" in the
  253. extra-stable case.
  254. - Items to backport to 0.2.0.x once solved in 0.2.1.x:
  255. R - add a geoip file *
  256. W - figure out license *
  257. - Use less RAM *
  258. - Optimize cell pool allocation.
  259. - Support (or just always use) jemalloc
  260. - mmap more files.
  261. - Look into pulling serverdescs off buffers as they arrive.
  262. - Use less bandwidth
  263. - Use if-modified-since to download consensuses
  264. - Handle multi-core cpus better
  265. - Use information from NETINFO cells
  266. - Don't extend a circuit over a noncanonical connection with
  267. mismatched address.
  268. - Learn our outgoing IP address from netinfo cells?
  269. - Learn skew from netinfo cells?
  270. - Testing
  271. - Better unit test coverage
  272. - Refactor unit tests into multiple files
  273. - Verify that write limits to linked connections work.
  274. - Use more mid-level and high-level libevent APIs
  275. - For dns?
  276. - For http?
  277. - For buffers?
  278. - Emulate NSS better:
  279. - Normalized cipher lists *
  280. - Normalized lists of extensions *
  281. - Tool improvements:
  282. - Get a "use less buffer ram" patch into openssl. *
  283. - Get IOCP patch into libevent *
  284. - Security improvements
  285. - make is-consensus-fresh-enough check way tighter.
  286. - If we haven't tried downloading a consensus for ages since we're tired,
  287. try getting a new one before we use old descriptors for a circuit.
  288. Related to bug 401.
  289. - Feature removals and deprecations:
  290. - Get rid of the v1 directory stuff (making, serving, and caching)
  291. - First verify that the caches won't flip out?
  292. - If they will, just stop the caches from caching for now
  293. - perhaps replace it with a "this is a tor server" stock webpage.
  294. - The v2dir flag isn't used for anything anymore, right? If so, dump it.
  295. - Even clients run rep_hist_load_mtbf_data(). Does this waste memory?
  296. Dump it?
  297. - Unless we start using ftime functions, dump them.
  298. - can we deprecate 'getinfo network-status'?
  299. - can we deprecate the FastFirstHopPK config option?
  300. - Can we deprecate controllers that don't use both features?
  301. Nice to have for 0.2.1.x:
  302. - Better support for private networks: figure out what is hard, and
  303. make it easier.
  304. - Proposals to write
  305. - steven's plan for replacing check.torproject.org with a built-in
  306. answer by tor itself.
  307. - Documentation
  308. P - Make documentation realize that location of system configuration file
  309. will depend on location of system defaults, and isn't always /etc/torrc.
  310. - Small controller features
  311. - A status event for when tor decides to stop fetching directory info
  312. if the client hasn't clicked recently: then make the onion change too.
  313. - Add a status event when new consensus arrives
  314. - Windows build
  315. P - Figure out why dll's compiled in mingw don't work right in WinXP.
  316. P - create a "make win32-bundle" for vidalia-privoxy-tor-torbutton bundle
  317. - Refactor bad code:
  318. - Refactor the HTTP logic so the functions aren't so large.
  319. - Refactor buf_read and buf_write to have sensible ways to return
  320. error codes after partial writes
  321. - Router_choose_random_node() has a big pile of args. make it "flags".
  322. - Streamline how we pick entry nodes: Make choose_random_entry() have
  323. less magic and less control logic.
  324. - Don't call time(NULL) so much; instead have a static time_t field
  325. that gets updated only a handful of times per second.
  326. - Move all status info out of routerinfo into local_routerstatus. Make
  327. "who can change what" in local_routerstatus explicit. Make
  328. local_routerstatus (or equivalent) subsume all places to go for "what
  329. router is this?"
  330. - deprecate router_digest_is_trusted_dir() in favor of
  331. router_get_trusteddirserver_by_digest()
  332. - Make Tor able to chroot itself
  333. o allow it to load an entire config file from control interface
  334. - document LOADCONF
  335. - log rotation (and FD passing) via control interface
  336. - chroot yourself, including inhibit trying to read config file
  337. and reopen logs, unless they are under datadir.
  338. - Should be trivial:
  339. - Base relative control socket paths (and other stuff in torrc) on datadir.
  340. - Tor logs the libevent version on startup, for debugging purposes.
  341. This is great. But it does this before configuring the logs, so
  342. it only goes to stdout and is then lost.
  343. - Make TrackHostExits expire TrackHostExitsExpire seconds after their
  344. *last* use, not their *first* use.
  345. - enforce a lower limit on MaxCircuitDirtiness and CircuitBuildTimeout.
  346. - Make 'safelogging' extend to info-level logs too.
  347. - don't do dns hijacking tests if we're reject *:* exit policy?
  348. (deferred until 0.1.1.x is less common)
  349. - More consistent error checking in router_parse_entry_from_string().
  350. I can say "banana" as my bandwidthcapacity, and it won't even squeak.
  351. - Interface for letting SOAT modify flags that authorities assign.
  352. (How to keep the authority from clobbering them afterwords?
  353. Later, unless people want to implement them now:
  354. - Actually use SSL_shutdown to close our TLS connections.
  355. - Include "v" line in networkstatus getinfo values.
  356. [Nick: bridge authorities output a networkstatus that is missing
  357. version numbers. This is inconvenient if we want to make sure
  358. bridgedb gives out bridges with certain characteristics. -RD]
  359. [Okay. Is this a separate item, or is it the same issue as the lack of
  360. a "v" line in response to the controller GETINFO command? -NM]
  361. - Let tor dir mirrors proxy connections to the tor download site, so
  362. if you know a bridge you can fetch the tor software.
  363. - when somebody uses the controlport as an http proxy, give them
  364. a "tor isn't an http proxy" error too like we do for the socks port.
  365. - MAYBE kill stalled circuits rather than stalled connections. This is
  366. possible thanks to cell queues, but we need to consider the anonymity
  367. implications.
  368. - Make resolves no longer use edge_connection_t unless they are actually
  369. _on_ a socks connection: have edge_connection_t and (say)
  370. dns_request_t both extend an edge_stream_t, and have p_streams and
  371. n_streams both be linked lists of edge_stream_t.
  372. - Generate torrc.{complete|sample}.in, tor.1.in, the HTML manual, and the
  373. online config documentation from a single source.
  374. - It would be potentially helpful to respond to https requests on
  375. the OR port by acting like an HTTPS server.
  376. - Make the timestamp granularity on logs configurable, with default
  377. of "1 second". This might make some kinds of after-the-fact attack harder.
  378. Can anybody remember why we wanted to do this and/or what it means?
  379. - config option __ControllerLimit that hangs up if there are a limit
  380. of controller connections already.
  381. [This was mwenge's idea. The idea is that a Tor controller can
  382. "fill" Tor's controller slot quota, so jerks can't do cross-protocol
  383. attacks like the http form attack. -RD]
  384. - Bridge issues
  385. . Ask all directory questions to bridge via BEGIN_DIR.
  386. - use the bridges for dir fetches even when our dirport is open.
  387. - drop 'authority' queries if they're to our own identity key; accept
  388. them otherwise.
  389. - give extend_info_t a router_purpose again
  390. If somebody wants to do this in some version, they should:
  391. - Create packages for Nokia 800, requested by Chris Soghoian
  392. - More work on AvoidDiskWrites
  393. - Make DNSPort support TCP DNS.
  394. * * * * Roger, please sort these: * * * *
  395. - bridge communities with local bridge authorities:
  396. - clients who have a password configured decide to ask their bridge
  397. authority for a networkstatus
  398. - be able to have bridges that aren't in your torrc. save them in
  399. state file, etc.
  400. - Consider if we can solve: the Tor client doesn't know what flags
  401. its bridge has (since it only gets the descriptor), so it can't
  402. make decisions based on Fast or Stable.
  403. - Bridge authorities should do reachability testing but only on the
  404. purpose==bridge descriptors they have.
  405. - Some mechanism for specifying that we want to stop using a cached
  406. bridge.
  407. =======================================================================
  408. Future versions:
  409. - Protocol
  410. - Our current approach to block attempts to use Tor as a single-hop proxy
  411. is pretty lame; we should get a better one.
  412. - Allow small cells and large cells on the same network?
  413. - Cell buffering and resending. This will allow us to handle broken
  414. circuits as long as the endpoints don't break, plus will allow
  415. connection (tls session key) rotation.
  416. - Implement Morphmix, so we can compare its behavior, complexity,
  417. etc. But see paper breaking morphmix.
  418. - Other transport. HTTP, udp, rdp, airhook, etc. May have to do our own
  419. link crypto, unless we can bully DTLS into it.
  420. - Need a relay teardown cell, separate from one-way ends.
  421. (Pending a user who needs this)
  422. - Handle half-open connections: right now we don't support all TCP
  423. streams, at least according to the protocol. But we handle all that
  424. we've seen in the wild.
  425. (Pending a user who needs this)
  426. - Directory system
  427. - BEGIN_DIR items
  428. - handle connect-dir streams that don't have a chosen_exit_name set.
  429. - Have a "Faster" status flag that means it. Fast2, Fast4, Fast8?
  430. - Add an option (related to AvoidDiskWrites) to disable directory
  431. caching. (Is this actually a good idea??)
  432. X Add d64 and fp64 along-side d and fp so people can paste status
  433. entries into a url. since + is a valid base64 char, only allow one
  434. at a time. Consider adding to controller as well.
  435. [abandoned for lack of demand]
  436. - Some back-out mechanism for auto-approval on authorities
  437. - a way of rolling back approvals to before a timestamp
  438. - Consider minion-like fingerprint file/log combination.
  439. X Have new people be in limbo and need to demonstrate usefulness
  440. before we approve them.
  441. - Hidden services:
  442. ****** Have karsten sort these.
  443. - Standby/hotswap/redundant hidden services.
  444. . Update the hidden service stuff for the new dir approach. (Much
  445. of this will be superseded by 114.)
  446. - switch to an ascii format, maybe sexpr?
  447. - authdirservers publish blobs of them.
  448. - other authdirservers fetch these blobs.
  449. - hidserv people have the option of not uploading their blobs.
  450. - you can insert a blob via the controller.
  451. - and there's some amount of backwards compatibility.
  452. - teach clients, intro points, and hidservs about auth mechanisms.
  453. - come up with a few more auth mechanisms.
  454. - auth mechanisms to let hidden service midpoint and responder filter
  455. connection requests.
  456. - Let each hidden service (or other thing) specify its own
  457. OutboundBindAddress?
  458. - Hidserv offerers shouldn't need to define a SocksPort
  459. - Server operation
  460. - If the server is spewing complaints about raising your ulimit -n,
  461. we should add a note about this to the server descriptor so other
  462. people can notice too.
  463. - When we hit a funny error from a dir request (eg 403 forbidden),
  464. but tor is working and happy otherwise, and we haven't seen many
  465. such errors recently, then don't warn about it.
  466. - Controller
  467. - Implement missing status events and accompanying getinfos
  468. - DIR_REACHABLE
  469. - BAD_DIR_RESPONSE (Unexpected directory response; maybe we're behind
  470. a firewall.)
  471. - BAD_PROXY (Bad http or https proxy)
  472. - UNRECOGNIZED_ROUTER (a nickname we asked for is unavailable)
  473. - Status events related to hibernation
  474. - something about failing to parse our address?
  475. from resolve_my_address() in config.c
  476. - sketchy OS, sketchy threading
  477. - too many onions queued: threading problems or slow CPU?
  478. - Implement missing status event fields:
  479. - TIMEOUT on CHECKING_REACHABILITY
  480. - GETINFO status/client, status/server, status/general: There should be
  481. some way to learn which status events are currently "in effect."
  482. We should specify which these are, what format they appear in, and so
  483. on.
  484. - More information in events:
  485. - Include bandwidth breakdown by conn->type in BW events.
  486. - Change circuit status events to give more details, like purpose,
  487. whether they're internal, when they become dirty, when they become
  488. too dirty for further circuits, etc.
  489. - Change stream status events analogously.
  490. - Expose more information via getinfo:
  491. - import and export rendezvous descriptors
  492. - Review all static fields for additional candidates
  493. - Allow EXTENDCIRCUIT to unknown server.
  494. - We need some way to adjust server status, and to tell tor not to
  495. download directories/network-status, and a way to force a download.
  496. - Make everything work with hidden services
  497. - Performance/resources
  498. - per-conn write buckets
  499. - separate config options for read vs write limiting
  500. (It's hard to support read > write, since we need better
  501. congestion control to avoid overfull buffers there. So,
  502. defer the whole thing.)
  503. - Rate limit exit connections to a given destination -- this helps
  504. us play nice with websites when Tor users want to crawl them; it
  505. also introduces DoS opportunities.
  506. - Consider truncating rather than destroying failed circuits,
  507. in order to save the effort of restarting. There are security
  508. issues here that need thinking, though.
  509. - Handle full buffers without totally borking
  510. - Rate-limit OR and directory connections overall and per-IP and
  511. maybe per subnet.
  512. - Misc
  513. - Hold-open-until-flushed now works by accident; it should work by
  514. design.
  515. - Display the reasons in 'destroy' and 'truncated' cells under
  516. some circumstances?
  517. - Make router_is_general_exit() a bit smarter once we're sure what
  518. it's for.
  519. - Automatically determine what ports are reachable and start using
  520. those, if circuits aren't working and it's a pattern we
  521. recognize ("port 443 worked once and port 9001 keeps not
  522. working").
  523. - Security
  524. - some better fix for bug #516?
  525. - Directory guards
  526. - Mini-SoaT:
  527. - Servers might check certs for known-good ssl websites, and if
  528. they come back self-signed, declare themselves to be
  529. non-exits. Similar to how we test for broken/evil dns now.
  530. - Authorities should try using exits for http to connect to some
  531. URLS (specified in a configuration file, so as not to make the
  532. List Of Things Not To Censor completely obvious) and ask them
  533. for results. Exits that don't give good answers should have
  534. the BadExit flag set.
  535. - Alternatively, authorities should be able to import opinions
  536. from Snakes on a Tor.
  537. - Bind to random port when making outgoing connections to Tor servers,
  538. to reduce remote sniping attacks.
  539. - Audit everything to make sure rend and intro points are just as
  540. likely to be us as not.
  541. - Do something to prevent spurious EXTEND cells from making
  542. middleman nodes connect all over. Rate-limit failed
  543. connections, perhaps?
  544. - DoS protection: TLS puzzles, public key ops, bandwidth exhaustion.
  545. - Needs thinking
  546. - Now that we're avoiding exits when picking non-exit positions,
  547. we need to consider how to pick nodes for internal circuits. If
  548. we avoid exits for all positions, we skew the load balancing. If
  549. we accept exits for all positions, we leak whether it's an
  550. internal circuit at every step. If we accept exits only at the
  551. last hop, we reintroduce Lasse's attacks from the Oakland paper.
  552. - Windows server usability
  553. - Solve the ENOBUFS problem.
  554. - make tor's use of openssl operate on buffers rather than sockets,
  555. so we can make use of libevent's buffer paradigm once it has one.
  556. - make tor's use of libevent tolerate either the socket or the
  557. buffer paradigm; includes unifying the functions in connect.c.
  558. - We need a getrlimit equivalent on Windows so we can reserve some
  559. file descriptors for saving files, etc. Otherwise we'll trigger
  560. asserts when we're out of file descriptors and crash.
  561. - Documentation
  562. - a way to generate the website diagrams from source, so we can
  563. translate them as utf-8 text rather than with gimp. (svg? or
  564. imagemagick?)
  565. . Flesh out options_description array in src/or/config.c
  566. . multiple sample torrc files
  567. - Refactor tor man page to divide generally useful options from
  568. less useful ones?
  569. - Add a doxygen style checker to make check-spaces so nick doesn't drift
  570. too far from arma's undocumented styleguide. Also, document that
  571. styleguide in HACKING. (See r9634 for example.)
  572. - exactly one space at beginning and at end of comments, except i
  573. guess when there's line-length pressure.
  574. - if we refer to a function name, put a () after it.
  575. - only write <b>foo</b> when foo is an argument to this function.
  576. - doxygen comments must always end in some form of punctuation.
  577. - capitalize the first sentence in the doxygen comment, except
  578. when you shouldn't.
  579. - avoid spelling errors and incorrect comments. ;)
  580. - Packaging
  581. - The Debian package now uses --verify-config when (re)starting,
  582. to distinguish configuration errors from other errors. Perhaps
  583. the RPM and other startup scripts should too?
  584. - add a "default.action" file to the tor/vidalia bundle so we can
  585. fix the https thing in the default configuration:
  586. http://wiki.noreply.org/noreply/TheOnionRouter/TorFAQ#PrivoxyWeirdSSLPort
  587. =======================================================================
  588. Documentation, non-version-specific.
  589. - Specs
  590. - Mark up spec; note unclear points about servers
  591. NR - write a spec appendix for 'being nice with tor'
  592. - Specify the keys and key rotation schedules and stuff
  593. . Finish path-spec.txt
  594. - Mention controller libs someplace.
  595. - Remove need for HACKING file.
  596. - document http://wiki.noreply.org/noreply/TheOnionRouter/TransparentProxy on freebsd and osx
  597. P - figure out why x86_64 won't build rpms from tor.spec
  598. P - figure out rpm spec files for bundles of vidalia-tor-polipo
  599. P - figure out polipo install scripts for bundles of vidalia-tor-polipo on osx, win32
  600. - figure out selinux policy for tor
  601. P - change packaging system to more automated and specific for each
  602. platform, suggested by Paul Wouter
  603. P - Setup repos for redhat and suse rpms & start signing the rpms the
  604. way package management apps prefer
  605. Website:
  606. J . tor-in-the-media page
  607. P - Figure out licenses for website material.
  608. (Phobos reccomends the Open Publication License with Option A at
  609. http://opencontent.org/openpub/)
  610. P - put the logo on the website, in source form, so people can put it on
  611. stickers directly, etc.
  612. P - put the source image for the stickers on the website, so people can
  613. print their own
  614. P - figure out a license for the logos and docs we publish (trademark
  615. figures into this)
  616. (Phobos reccomends the Open Publication License with Option A at
  617. http://opencontent.org/openpub/)
  618. P - ask Jan/Jens to be the translation coordinator? add to volunteer page.
  619. I - add a page for localizing all tor's components.
  620. - It would be neat if we had a single place that described _all_ the
  621. tor-related tools you can use, and what they give you, and how well they
  622. work. Right now, we don't give a lot of guidance wrt
  623. torbutton/foxproxy/privoxy/polipo in any consistent place.
  624. P - create a 'blog badge' for tor fans to link to and feature on their
  625. blogs. A sample is at http://interloper.org/tmp/tor/tor-button.png
  626. - More prominently, we should have a recommended apps list.
  627. - recommend pidgin (gaim is renamed)
  628. - unrecommend IE because of ftp:// bug.
  629. - Addenda to tor-design
  630. - we should add a preamble to tor-design saying it's out of date.
  631. - we should add an appendix or errata on what's changed.
  632. - Tor mirrors
  633. - make a mailing list with the mirror operators
  634. - make an automated tool to check /project/trace/ at mirrors to
  635. learn which ones are lagging behind.
  636. - auto (or manually) cull the mirrors that are broken; and
  637. contact their operator?
  638. - a set of instructions for mirror operators to make their apaches
  639. serve our charsets correctly, and bonus points for language
  640. negotiation.
  641. - figure out how to load-balance the downloads across mirrors?
  642. - ponder how to get users to learn that they should google for
  643. "tor mirrors" if the main site is blocked.
  644. - find a mirror volunteer to coordinate all of this