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add a few items it would be smart todo
svn:r6457
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doc/TODO
38
doc/TODO
@ -50,21 +50,28 @@ R - track down the patch for cross-compiling.
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- Interim things:
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- provide no-cache no-index headers from the dirport?
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o remove down/useless descriptors from v1 directory?
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- exitlist should avoid outputting the same IP address twice.
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- if we have no predicted ports, don't fetch router descriptors.
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this way we are more dormant.
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Must-have items for 0.1.2.x:
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- If we fail to connect via an exit enclave, (warn and) try again
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without demanding that exit node.
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- If we have no predicted ports, don't fetch router descriptors.
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This way we are more dormant.
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- Directory guards
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R - Server usability
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- look into "uncounting" bytes spent on local connections. so
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we can bandwidthrate but still have fast downloads.
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- Write limiting; separate token bucket for write
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- dir answers include a your-ip-address-is header, so we can
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break our dependency on dyndns.
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N - Better hidden service performance, with possible redesign.
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- Asynchronous DNS
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- What to use? C-ares? Libdns? AGL's patch?
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- Better estimates in the directory of whether servers have good uptime
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(high expected time to failure) or good guard qualities (high
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fractional uptime).
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- AKA Track uptime as %-of-time-up, as well as time-since-last-down.
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N . memory usage on dir servers. copy less!
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o Remember offset and location of each descriptor in the cache/journal
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- When sending a big pile of descs to a client, don't shove them all on
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@ -73,7 +80,7 @@ N . memory usage on dir servers. copy less!
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refcounted. (Only slightly; we'd only need to know whether it's on
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the routerlist->routers or routerlist->old_routers, and how many
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directory conns are returning it.)
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- Possibly, we could just to keep a list of the descriptor digests for
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- Possibly, we could just keep a list of the descriptor digests for
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the descriptors we still want to send. We might end up truncating
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some replies by returning fewer descriptors than were requested (if
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somebody requests a desc that we throw away before we deliver it),
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@ -88,6 +95,8 @@ N . memory usage on dir servers. copy less!
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N - oprofile including kernel time on multiple platforms
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Items for 0.1.2:
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- We need a separate list of "hidserv authorities" if we want to
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retire moria1 from the main list.
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- Improve controller
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- change circuit status events to give more details, like purpose,
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whether they're internal, when they become dirty, when they become
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@ -114,7 +123,7 @@ Items for 0.1.2:
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without using SOCKS.
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- Make everything work with hidden services
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- Clients should refer to avoid exit nodes for non-exit path positions.
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- Clients should prefer to avoid exit nodes for non-exit path positions.
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(bug 200)
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- Make "setconf" and "hup" behavior cleaner for LINELIST config
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options (e.g. Log). Bug 238.
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@ -125,10 +134,7 @@ Items for 0.1.2:
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- Design
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- Implement
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- Have a "ReallyFast" status flag that means it.
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R - look into "uncounting" bytes spent on local connections. so
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we can bandwidthrate but still have fast downloads.
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- Have a "Faster" status flag that means it. Fast2, Fast4, Fast8?
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- When we connect to a Tor server, it sends back a cell listing
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the IP it believes it is using. Use this to block dvorak's attack.
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@ -158,10 +164,10 @@ Topics to think about during 0.1.2.x development:
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- Figure out hidden services.
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Minor items for 0.1.2.x as time permits.
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- Streamline how we define a guard node as 'up'. document it
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somewhere.
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- The bw_accounting file should get merged into the state file.
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- Streamline how we define a guard node as 'up'. document it somewhere.
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- Better installers and build processes.
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- Commit edmanm's win32 makefil eto tor cvs contrib, or write a new one.
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- Commit edmanm's win32 makefile to tor cvs contrib, or write a new one.
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- Can we cross-compile?
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R - Christian Grothoff's attack of infinite-length circuit.
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the solution is to have a separate 'extend-data' cell type
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@ -177,7 +183,8 @@ N - Display the reasons in 'destroy' and 'truncated' cells under some
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- We need a getrlimit equivalent on Windows so we can reserve some
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file descriptors for saving files, etc. Otherwise we'll trigger
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asserts when we're out of file descriptors and crash.
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- the tor client can do the "automatic proxy config url" thing?
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X the tor client can do the "automatic proxy config url" thing?
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(no, let's leave this for applications like torbutton)
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- Automatically determine what ports are reachable and start using
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those, if circuits aren't working and it's a pattern we recognize
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("port 443 worked once and port 9001 keeps not working").
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@ -220,7 +227,7 @@ N - Vet all pending installer patches
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- Clients should estimate their skew as median of skew from servers
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over last N seconds.
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- Security
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- Alices avoid duplicate class C nodes.
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- Alices avoid duplicate /24 servers.
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- Analyze how bad the partitioning is or isn't.
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. Update the hidden service stuff for the new dir approach.
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@ -245,7 +252,6 @@ N - Vet all pending installer patches
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- Make router_is_general_exit() a bit smarter once we're sure what it's for.
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- rewrite how libevent does select() on win32 so it's not so very slow.
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- Write limiting; separate token bucket for write
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- Audit everything to make sure rend and intro points are just as likely to
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be us as not.
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- Do something to prevent spurious EXTEND cells from making middleman
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@ -261,7 +267,6 @@ Future version:
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- DoS protection: TLS puzzles, public key ops, bandwidth exhaustion.
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- Specify?
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- tor-resolve script should use socks5 to get better error messages.
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- Track uptime as %-of-time-up, as well as time-since-last-down.
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- hidserv offerers shouldn't need to define a SocksPort
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* figure out what breaks for this, and do it.
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- Relax clique assumptions.
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@ -289,3 +294,4 @@ Blue-sky:
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streams, at least according to the protocol. But we handle all that
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we've seen in the wild.
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(Pending a user who needs this)
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