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Redivide 0.2.1 items into do,nice-to-have,and defer.
svn:r17539
This commit is contained in:
Nick Mathewson
parent
a7b4a7b9f8
commit
8990dbcf7a
@ -3,7 +3,9 @@ Changes in version 0.2.1.9-alpha - 200?-??-??
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o Minor features (controller):
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- New CONSENSUS_ARRIVED event to note when a new consensus has
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been fetched and validated.
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- Finally remove deprecated "EXTENEDED_FORMAT" feature.
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- Finally remove deprecated "EXTENEDED_FORMAT" feature. It has
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been called EXTENDED_EVENTS since 0.1.2.4-alpha.
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Changes in version 0.2.1.8-alpha - 2008-12-08
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o Major features:
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172
doc/TODO.021
172
doc/TODO.021
@ -20,6 +20,9 @@ K - Karsten claims
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D Deferred
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X Abandoned
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Temporary legend:
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=======================================================================
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Things Roger would be excited to see:
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@ -111,10 +114,9 @@ R - bridge communities
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- man page entries for Alternate*Authority config options
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Documentation for Tor 0.2.0.x:
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- Proposals:
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. 111: Prioritize local traffic over relayed.
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R - Merge into tor-spec.txt.
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- 113: mark as closed close.
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o Proposals:
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o 111: Prioritize local traffic over relayed.
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o 113: mark as closed close.
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o document the "3/4 and 7/8" business in the clients fetching consensus
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documents timeline.
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R - then document the bridge user download timeline.
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@ -155,27 +157,14 @@ For 0.2.1.x:
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- Advertise availability of ipv6.
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- Geoip support, if only to add a zone called "ipv6"
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- 118: Listen on and advertise multiple ports:
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- Tor should be able to have a pool of outgoing IP addresses that it is
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able to rotate through. (maybe. Possible overlap with proposal 118.)
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- config option to publish what ports you listen on, beyond
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ORPort/DirPort. It should support ranges and bit prefixes (?) too.
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- Need to figure out the right format for routerinfo_t on this.
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K . 121: Hidden service authentication:
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missing: delayed descriptor publication for 'stealth' mode.
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R d 128: families of private bridges
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- 134: handle authority fragmentation.
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- missing: delayed descriptor publication for 'stealth' mode.
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R o 128: families of private bridges
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o 135: simplify configuration of private tor networks.
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- 140: Provide diffs betweeen consensuses
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K - 143: Improvements of Distributed Hidden Service Descriptor Storage:
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only easy parts for 0.2.1.x, defer complex ones to 0.2.2.x.
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- 147: Eliminate the need for v2 directories in generating v3 directories
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R - authorities should initiate a reachability test upon first
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glimpsing a new descriptor.
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- 148: Stream end reasons from the client side should be uniform.
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K - 155: Four Improvements of Hidden Service Performance
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- Maybe:
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K o 155: Four Improvements of Hidden Service Performance
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- 145: Separate "suitable from a guard" from "suitable as a new guard"
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- 146: Adding new flag to reflect long-term stability
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- 149: Using data from NETINFO cells
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@ -187,10 +176,6 @@ K - 155: Four Improvements of Hidden Service Performance
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- Proposals to write:
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- Fix voting to handle bug 608 case when multiple servers get
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Named.
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R d Do we want to maintain our own set of entryguards that we use as
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next hop after the bridge?
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d Possibly: revise link protocol to allow big circuit IDs,
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variable-length cells, proposal-110 stuff, and versioned CREATES?
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N . Draft proposal for GeoIP aggregation (see external constraints *)
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. Figure out how to make good use of the fallback consensus file. Right
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now many of the addresses in the fallback consensus will be stale,
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@ -201,54 +186,34 @@ N . Draft proposal for GeoIP aggregation (see external constraints *)
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o Write the proposal.
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- Patch our tor.spec rpm package so it knows where to put the fallback
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consensus file.
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d Something for bug 469, to limit connections per IP.
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. Put bandwidth weights in the networkstatus? So clients get weight
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their choices even before they have the descriptors; and so
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authorities can put in more accurate numbers in the future.
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d Fetch an updated geoip file from the directory authorities.
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- Tiny designs to write:
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. Better estimate of clock skew; has anonymity implications. Clients
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should estimate their skew as median of skew from servers over last
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N seconds, but for servers this is not so easy, since a server does
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not choose who it connects to.
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- Do TLS connection rotation more often than "once a week" in the
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extra-stable case.
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(One reason not to do it more often is because the old TLS conn
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probably has a circuit on it, and we don't really want to build up
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dozens of TCP connections to all the other extra-stable relays.)
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- If a relay publishes a new descriptor with a significantly lower
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uptime or with a new IP address, then we should consider its current
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"running" interval to have ended even if it hadn't yet failed its
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third reachability test. the interval ended when the new descriptor
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appeared, and a new interval began then too.
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- Use less RAM *
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- Optimize cell pool allocation.
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d Support (or just always use) jemalloc (if it helps)
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- mmap more files.
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- Look into pulling serverdescs off buffers as they arrive.
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- Authority improvements:
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R - authorities should initiate a reachability test upon first
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glimpsing a new descriptor.
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- Use less bandwidth
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- Use if-modified-since to download consensuses
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- Handle multi-core cpus better
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- Split circuit AES across cores?
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- Split TLS across cores? This will be harder.
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- Testing
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- Better unit test coverage
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- Refactor unit tests into multiple files
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- Verify that write limits to linked connections work.
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- Use more mid-level and high-level libevent APIs
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- For dns?
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- For http?
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- For buffers?
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- Tool improvements:
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- Get IOCP patch into libevent *
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- Security improvements
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- make is-consensus-fresh-enough check way tighter.
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- make is-consensus-fresh-enough check tighter.
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- If we haven't tried downloading a consensus for ages since we're tired,
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try getting a new one before we use old descriptors for a circuit.
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Related to bug 401. [What does "since we're tired" mean? -RD]
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[I don't know. -NM]
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- Feature removals and deprecations:
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- Get rid of the v1 directory stuff (making, serving, and caching)
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@ -257,19 +222,22 @@ N . Draft proposal for GeoIP aggregation (see external constraints *)
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. perhaps replace it with a "this is a tor server" stock webpage.
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- Get the debs to set DirPortFrontPage in the default.
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- Decide how to handle DirPortFrontPage files with image links.
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- The v2dir flag isn't used for anything anymore, right? If so, dump it.
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- Even clients run rep_hist_load_mtbf_data(). Does this waste memory?
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Dump it?
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- Unless we start using ftime functions, dump them.
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- can we deprecate 'getinfo network-status'?
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- can we deprecate the FastFirstHopPK config option?
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- Can we deprecate controllers that don't use both features?
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- Dump most uint32_t addr functions.
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- Both TorK and Vidalia use VERBOSE_NAMES.
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- TorK uses EXTENDED_EVENTS. Vidalia does not. (As of 9 Dec.)
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- Matt is checking whether Vidalia would break if we started to use
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EXTENDED_EVENTS by default.
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External tool improvements:
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- Get IOCP patches into libevent
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Nice to have for 0.2.1.x:
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- Proposals to write
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- steven's plan for replacing check.torproject.org with a built-in
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answer by tor itself.
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- Proposals, time permitting
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- 134: handle authority fragmentation.
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- 140: Provide diffs betweeen consensuses
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- Handle multi-core cpus better
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- Split circuit AES across cores
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- Documentation
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P - Make documentation realize that location of system configuration file
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@ -278,7 +246,7 @@ P - Make documentation realize that location of system configuration file
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- Small controller features
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- A status event for when tor decides to stop fetching directory info
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if the client hasn't clicked recently: then make the onion change too.
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- Add a status event when new consensus arrives
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o Add a status event when new consensus arrives
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- Windows build
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P - Figure out why dll's compiled in mingw don't work right in WinXP.
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@ -288,16 +256,84 @@ P - create a "make win32-bundle" for vidalia-privoxy-tor-torbutton bundle
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- Refactor the HTTP logic so the functions aren't so large.
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- Refactor buf_read and buf_write to have sensible ways to return
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error codes after partial writes
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- deprecate router_digest_is_trusted_dir() in favor of
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router_get_trusteddirserver_by_digest()
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- Should be trivial
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- Tor logs the libevent version on startup, for debugging purposes.
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This is great. But it does this before configuring the logs, so
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it only goes to stdout and is then lost.
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- Deprecations
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- Even clients run rep_hist_load_mtbf_data(). This doesn't waste memory
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unless they had previously been non-clients collecting MTBF data.
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Dump it anyway?
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- Unless we start using ftime functions, dump them.
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- can we deprecate the FastFirstHopPK config option?
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- The v2dir flag isn't used for anything anymore, right? If so, dump it.
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- can we deprecate 'getinfo network-status'?
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- Dump most uint32_t addr functions.
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Defer:
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- Proposals
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- 118: Listen on and advertise multiple ports:
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- Tor should be able to have a pool of outgoing IP addresses that it is
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able to rotate through. (maybe. Possible overlap with proposal 118.)
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- config option to publish what ports you listen on, beyond
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ORPort/DirPort. It should support ranges and bit prefixes (?) too.
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- Need to figure out the right format for routerinfo_t on this.
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- 147: Eliminate the need for v2 directories in generating v3 directories
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- Proposals to write.
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d Something for bug 469, to limit connections per IP.
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R d Do we want to maintain our own set of entryguards that we use as
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next hop after the bridge?
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d Possibly: revise link protocol to allow big circuit IDs,
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variable-length cells, proposal-110 stuff, and versioned CREATES?
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d Fetch an updated geoip file from the directory authorities.
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- Tiny designs to write
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- Better estimate of clock skew; has anonymity implications. Clients
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should estimate their skew as median of skew from servers over last
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N seconds, but for servers this is not so easy, since a server does
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not choose who it connects to.
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- Do TLS connection rotation more often than "once a week" in the
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extra-stable case.
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(One reason not to do it more often is because the old TLS conn
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probably has a circuit on it, and we don't really want to build up
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dozens of TCP connections to all the other extra-stable relays.)
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- Use less RAM
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- Optimize cell pool allocation.
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- Support (or just always use) jemalloc (if it helps)
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- mmap more files.
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- Pull serverdescs off buffers as they arrive.
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- Allocate routerstatus_t objects on a per-networkstatus memchunk.
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- Split TLS across multiple cores
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- Use more mid-level and high-level libevent APIs
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- For dns?
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- For http?
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- For buffers?
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- Proposals to write
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- steven's plan for replacing check.torproject.org with a built-in
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answer by tor itself.
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- Refactor bad code:
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- Streamline how we pick entry nodes: Make choose_random_entry() have
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less magic and less control logic.
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- Don't call time(NULL) so much; instead have a static time_t field
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that gets updated only a handful of times per second.
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- Move all status info out of routerinfo into local_routerstatus. Make
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"who can change what" in local_routerstatus explicit. Make
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local_routerstatus (or equivalent) subsume all places to go for "what
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router is this?"
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- deprecate router_digest_is_trusted_dir() in favor of
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router_get_trusteddirserver_by_digest()
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- Don't call time(NULL) so much; instead have a static time_t field
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that gets updated only a handful of times per second.
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- Refactor unit tests into multiple files
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- Make Tor able to chroot itself
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o allow it to load an entire config file from control interface
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@ -308,9 +344,6 @@ P - create a "make win32-bundle" for vidalia-privoxy-tor-torbutton bundle
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- Should be trivial:
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- Base relative control socket paths (and other stuff in torrc) on datadir.
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- Tor logs the libevent version on startup, for debugging purposes.
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This is great. But it does this before configuring the logs, so
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it only goes to stdout and is then lost.
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- enforce a lower limit on MaxCircuitDirtiness and CircuitBuildTimeout.
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- Make 'safelogging' extend to info-level logs too.
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- don't do dns hijacking tests if we're reject *:* exit policy?
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@ -320,4 +353,3 @@ P - create a "make win32-bundle" for vidalia-privoxy-tor-torbutton bundle
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d Interface for letting SOAT modify flags that authorities assign.
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(How to keep the authority from clobbering them afterwards?
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