mirror of
https://gitlab.torproject.org/tpo/core/tor.git
synced 2024-11-28 06:13:31 +01:00
724 lines
33 KiB
Plaintext
724 lines
33 KiB
Plaintext
$Id$
|
|
Legend:
|
|
SPEC!! - Not specified
|
|
SPEC - Spec not finalized
|
|
N - nick claims
|
|
R - arma claims
|
|
P - phobos claims
|
|
S - Steven claims
|
|
M - Matt/Mike claims
|
|
J - Jeff claims
|
|
I - ioerror claims
|
|
W - weasel claims
|
|
- Not done
|
|
* Top priority
|
|
. Partially done
|
|
o Done
|
|
d Deferrable
|
|
D Deferred
|
|
X Abandoned
|
|
|
|
=======================================================================
|
|
|
|
External constraints:
|
|
|
|
- Mid Apr
|
|
- More Torbrowser work:
|
|
o Get polipo into it
|
|
I - Figure out who at Mozilla can give us permission to keep the
|
|
name Firefox on our Tor Browser Bundle. Get said permission.
|
|
o Make Torbrowser website
|
|
o Get it integrated into the Tor download pages
|
|
S - Finish first cut at integrating upnp lib into Vidalia
|
|
R - get the geoip files onto some bridge relays, and gather stats
|
|
|
|
- End of April
|
|
S - Zip-splitting:
|
|
- Document the use of 7-zip to combine fractional files and
|
|
reconstruct them after download. Host such files.
|
|
- If it's faster to research a self-extracting splitter
|
|
and use it, with simpler documentation, that's obviously fine.
|
|
N - Investigate and start resolving (or declare unresolvable) the ram
|
|
issue for relays. Investigate and document all of, and do at
|
|
least two of:
|
|
o better buffer approaches in Tor
|
|
- better buffer approaches in openssl
|
|
- shipping Tor with its own integrated allocator.
|
|
N - Write a draft research proposal for how to safely collect and
|
|
aggregate some GeoIP data from non-bridge entry nodes, or conclude
|
|
that we don't know how to do it safely while still being useful
|
|
and explain why.
|
|
I - Translation portal
|
|
- Vidalia translations (via launchpad?)
|
|
- Vidalia installer translations
|
|
- Torbutton translations (via babelzilla?)
|
|
- Centralized instructions for how to help translate
|
|
- Continue managing the tor-translations team to keep the Tor
|
|
website translated
|
|
|
|
- End of May
|
|
S - More TorBrowser work
|
|
- Integrate pidgin and OTR
|
|
- move portablefirefox nsi goo into vidalia as appropriate
|
|
- Figure out (or give up on) how to run Tor Browser and ordinary
|
|
Firefox side-by-side.
|
|
|
|
- mid June
|
|
R - SRI stuff
|
|
|
|
- mid June
|
|
- More TorBrowser work
|
|
S - Firefox extension framework for Torbrowser build-time
|
|
S - Progress bar during startup, including some "timeout" events to
|
|
indicate when Tor's unlikely to succeed at startup.
|
|
R - Make Tor put out appropriate events
|
|
- Let Vidalia notice them and change its appearance
|
|
S - Enumerate and analyze traces left when running from USB
|
|
R - Finish tor-doc-bridge.wml
|
|
- More bridgedb work:
|
|
R - Get the dkimproxy patch in
|
|
? - Brainstorm about safe but effective ways for vidalia to
|
|
auto-update its user's bridges via Tor in the background.
|
|
NR - Include "stable" bridge and "port 443" bridge and "adequately
|
|
new version" bridge free in every specially marked
|
|
box!^W^W^Woutput batch.
|
|
N - Detect proxies and treat them as the same address
|
|
- More back-end work:
|
|
N - If we decided above that we know how to collect geoip data for
|
|
non bridge relays, deploy that plan.
|
|
N - Additional TLS-camouflage work (spoofing FF cipher suite, etc.)
|
|
- spoof the cipher suites
|
|
- spoof the extensions list
|
|
- red-team testing (a.k.a, look at a packet dump and compare),
|
|
- investigate the feasibility of handing connections off to a
|
|
local apache if they don't look like Tor or if they don't
|
|
portknock or whatever.
|
|
W - Get closer to downloading far fewer descriptors
|
|
- Instrument the code to track how many descriptors we download vs how
|
|
many times we extend a circuit.
|
|
- Write a proposal for how to fetch far fewer descriptors; assess
|
|
anonymity attacks, like from looking at the size of the
|
|
descriptor you fetch.
|
|
I - Translation portal
|
|
- Torbutton webpage
|
|
o Torbrowser webpage
|
|
- Tor website
|
|
- check.torproject.org
|
|
- should we i18nize polipo's error messages too?
|
|
|
|
- August
|
|
I - Auto update
|
|
o Vidalia learns when Tor thinks it should be updated
|
|
R - Tor status events should suggest a new version to switch to
|
|
I - Figure out a good PKI, document the design, assess security issues:
|
|
"write a proposal"
|
|
- Vidalia fetches the new one via Tor when possible, but fetches
|
|
it without Tor "when necessary", whatever that means.
|
|
- Give an interface for notifying the user, and letting her
|
|
decide to fetch and decide to swap out the old Tor for the new.
|
|
- Do the same for Polipo
|
|
- and for Vidalia itself
|
|
|
|
=======================================================================
|
|
|
|
Things Roger would be excited to see:
|
|
|
|
Nick
|
|
- Finish buffer stuff in libevent; start using it in Tor.
|
|
- Tors start believing the contents of NETINFO cells.
|
|
- Get a "use less buffer ram" patch into openssl.
|
|
|
|
Matt
|
|
- Fit Vidalia in 640x480 again.
|
|
- When user changes the language in Vidalia, have it change right then.
|
|
- Vidalia should display/edit PlaintextPorts events/config.
|
|
- Vidalia's GUI should let you specify an http proxy that it launches
|
|
for you. Maybe in the general config window next to which Tor it
|
|
launches for you.
|
|
|
|
ioerror
|
|
- gmail auto responder so you send us an email and we send you a Tor
|
|
binary. Probably needs a proposal first.
|
|
- weather.torproject.org should go live.
|
|
- Learn from Steven how to build/maintain the Tor Browser Bundle.
|
|
- Learn from Mike how to run SoaT, and try to make that an automated
|
|
service somewhere.
|
|
- Keep advocating new Tor servers and working with orgs like Mozilla
|
|
to let them like Tor.
|
|
- Start converting critical wiki pages into real Tor wml pages. E.g.,
|
|
https://wiki.torproject.org/noreply/TheOnionRouter/VerifyingSignatures
|
|
|
|
Steven
|
|
- Write a list of research items Tor would like to see done, for the
|
|
volunteer page. Pick a few you'd like to work on yourself.
|
|
- Move proposal 131 or equivalent forward.
|
|
|
|
Andrew
|
|
- Which bundles include Torbutton? Change the docs/tor-doc-foo pages
|
|
so they admit that Torbutton is in them too. Change the download
|
|
page too.
|
|
- The OS X bundle screenshots are from forever ago -- they don't
|
|
include Torbutton, they still say it's tor.eff.org, etc.
|
|
- Should we still be telling you how to use Safari on OS X for Tor,
|
|
given all the holes that Torbutton-dev solves on Firefox?
|
|
|
|
Karsten
|
|
- Make a hidden services explanation page with the hidden service
|
|
diagrams. See img/THS-[1-6].png. These need some text to go along
|
|
with them though, so people can follow what's going on.
|
|
- We should consider a single config option TorPrivateNetwork that
|
|
turns on all the config options for running a private test tor
|
|
network. having to keep updating all the tools, and the docs,
|
|
just isn't working.
|
|
|
|
Weasel
|
|
- Figure out how to make Vidalia and Tor play nicely on Debian, make
|
|
the necessary modifications, and make some Vidalia debs that pass
|
|
muster.
|
|
- Tell us whether bug 537 can be closed.
|
|
- Fix bug 393.
|
|
- Get oftc to switch to the Tor dns exitlist. Or tell us why it's
|
|
not suitable yet.
|
|
|
|
=======================================================================
|
|
|
|
For Tor 0.2.0.x-rc:
|
|
R - Figure out the autoconf problem with adding a fallback consensus.
|
|
R - add a geoip file
|
|
W - figure out license
|
|
R - let bridges set relaybandwidthrate as low as 5kb
|
|
R - bug: if we launch using bridges, and then stop using bridges, we
|
|
still have our bridges in our entryguards section, and may use them.
|
|
. make it easier to set up a private tor network on your own computer
|
|
is very hard.
|
|
R . FAQ entry which is wrong
|
|
|
|
N . geoip caching and publishing for bridges
|
|
d Track consecutive time up, not time since last-forgotten IP.
|
|
- Mention in dir-spec.txt
|
|
- Mention in control-spec.txt
|
|
D have normal relays report geoip stats too.
|
|
D different thresholds for bridges than for normal relays.
|
|
o bridge relays round geoip stats *up*, not down.
|
|
R - bridge communities
|
|
. spec
|
|
. deploy
|
|
- man page entries for Alternate*Authority config options
|
|
|
|
Things we'd like to do in 0.2.0.x:
|
|
N - document the "3/4 and 7/8" business in the clients fetching consensus
|
|
documents timeline.
|
|
R - then document the bridge user download timeline.
|
|
|
|
N - Before the feature freeze:
|
|
- 105+TLS, if possible.
|
|
. TLS backend work
|
|
. Enable.
|
|
- Test
|
|
o Verify version negotiation on client
|
|
o Verify version negotiation on server
|
|
o Verify that client->server connection becomes open
|
|
- Verify that server->server connection becomes open and
|
|
authenticated.
|
|
- Verify that initiator sends no cert in first stage of TLS
|
|
handshake.
|
|
- NETINFO fallout
|
|
- Don't extend a circuit over a noncanonical connection with
|
|
mismatched address.
|
|
- Learn our outgoing IP address from netinfo cells?
|
|
|
|
- Bugs.
|
|
- Bug reports Roger has heard along the way that don't have enough
|
|
details/attention to solve them yet.
|
|
- arma noticed that when his network went away and he tried
|
|
a new guard node and the connect() syscall failed to it,
|
|
the guard wasn't being marked as down. 0.2.0.x.
|
|
- after being without network for 12 hours, arma's tor decided
|
|
it couldn't fetch any network statuses, and never tried again
|
|
even when the network came back and arma clicked on things.
|
|
also 0.2.0.
|
|
R - for above two, roger should turn them into flyspray entry.
|
|
|
|
- Proposals:
|
|
o 101: Voting on the Tor Directory System (plus 103)
|
|
N - Use if-modified-since on consensus download
|
|
- Controller support
|
|
D GETINFO to get consensus
|
|
N - Event when new consensus arrives
|
|
. 111: Prioritize local traffic over relayed.
|
|
R - Merge into tor-spec.txt.
|
|
|
|
=======================================================================
|
|
|
|
Planned for 0.2.1.x:
|
|
- Refactoring:
|
|
. Make cells get buffered on circuit, not on the or_conn.
|
|
. Switch to pool-allocation for cells?
|
|
N - Benchmark pool-allocation vs straightforward malloc.
|
|
N - Adjust memory allocation logic in pools to favor a little less
|
|
slack memory.
|
|
. Remove socketpair-based bridges conns, and the word "bridge". (Use
|
|
shared (or connected) buffers for communication, rather than sockets.)
|
|
. Implement
|
|
N - Handle rate-limiting on directory writes to linked directory
|
|
connections in a more sensible manner.
|
|
Nick thinks he did this already?
|
|
N - Find more ways to test this.
|
|
(moria doesn't rate limit, so testing on moria not so good.)
|
|
|
|
- Documentation
|
|
- HOWTO for DNSPort. See tup's wiki page.
|
|
. Document transport and natdport in a good HOWTO.
|
|
N - Quietly document NT Service options: revise (or create) FAQ entry
|
|
|
|
P - Make documentation realize that location of system configuration file
|
|
will depend on location of system defaults, and isn't always /etc/torrc.
|
|
P - Figure out why dll's compiled in mingw don't work right in WinXP.
|
|
P - create a "make win32-bundle" for vidalia-privoxy-tor-torbutton bundle
|
|
|
|
- Things that have been bugging Nick
|
|
- Make better use of multi-core machines: Do AES crypto and
|
|
compression in worker threads
|
|
- Maybe use jemalloc from freebsd via firefox 3, once its windows
|
|
and osx ports are more mature.
|
|
- MMap the cached-descriptors.new file as well as the regular ones
|
|
- Actually use SSL_shutdown to close our TLS connections.
|
|
- Refactor the HTTP logic so the functions aren't so large.
|
|
- Get a "use less buffer ram" patch into openssl.
|
|
- Get IOCP patch into libevent
|
|
- Use libevent's evdns code where applicable.
|
|
- Refactor buf_read and buf_write to have sensible ways to return
|
|
error codes after partial writes
|
|
- Improve unit test coverage
|
|
- Logging domains.
|
|
|
|
- get rid of the v1 directory stuff (making, serving, and caching).
|
|
- perhaps replace it with a "this is a tor server" stock webpage.
|
|
- the v2dir flag isn't used for anything anymore. right?
|
|
- even clients run rep_hist_load_mtbf_data(). this wastes memory.
|
|
- steven's plan for replacing check.torproject.org with a built-in
|
|
answer by tor itself.
|
|
- a status event for when tor decides to stop fetching directory info
|
|
if the client hasn't clicked recently: then make the onion change too.
|
|
|
|
- bridge communities with local bridge authorities:
|
|
- clients who have a password configured decide to ask their bridge
|
|
authority for a networkstatus
|
|
- be able to have bridges that aren't in your torrc. save them in
|
|
state file, etc.
|
|
N - router_choose_random_node() has a big pile of args. make it "flags".
|
|
- Consider if we can solve: the Tor client doesn't know what flags
|
|
its bridge has (since it only gets the descriptor), so it can't
|
|
make decisions based on Fast or Stable.
|
|
- anonymity concern: since our is-consensus-fresh-enough check is
|
|
sloppy so clients will actually work when a consensus wasn't formed,
|
|
does that mean that if users are idle for 5 hours and then click on
|
|
something, we will immediately use the old descriptors we've got,
|
|
while we try fetching the newer descriptors?
|
|
related to bug 401.
|
|
. Finish path-spec.txt
|
|
- More prominently, we should have a recommended apps list.
|
|
- recommend pidgin (gaim is renamed)
|
|
- unrecommend IE because of ftp:// bug.
|
|
- we should add a preamble to tor-design saying it's out of date.
|
|
- Refactor networkstatus generation:
|
|
- Include "v" line in getinfo values.
|
|
- config option __ControllerLimit that hangs up if there are a limit
|
|
of controller connections already.
|
|
- Features (other than bridges):
|
|
- Audit how much RAM we're using for buffers and cell pools; try to
|
|
trim down a lot.
|
|
- Base relative control socket paths on datadir.
|
|
- Make TrackHostExits expire TrackHostExitsExpire seconds after their
|
|
*last* use, not their *first* use.
|
|
- switch out privoxy in the bundles and replace it with polipo.
|
|
- Consider creating special Tor-Polipo-Vidalia test packages,
|
|
requested by Dmitri Vitalev (does torbrowser meet this need?)
|
|
- Create packages for Nokia 800, requested by Chris Soghoian
|
|
- mirror tor downloads on (via) tor dir caches
|
|
. spec
|
|
- deploy
|
|
- interface for letting soat modify flags that authorities assign
|
|
. spec
|
|
- proposal 118 if feasible and obvious
|
|
- Maintain a skew estimate and use ftime consistently.
|
|
- Tor logs the libevent version on startup, for debugging purposes.
|
|
This is great. But it does this before configuring the logs, so
|
|
it only goes to stdout and is then lost.
|
|
- Deprecations:
|
|
- can we deprecate 'getinfo network-status'?
|
|
- can we deprecate the FastFirstHopPK config option?
|
|
- Bridges:
|
|
. Bridges users (rudimentary version)
|
|
. Ask all directory questions to bridge via BEGIN_DIR.
|
|
- use the bridges for dir fetches even when our dirport is open.
|
|
- drop 'authority' queries if they're to our own identity key; accept
|
|
them otherwise.
|
|
- give extend_info_t a router_purpose again
|
|
d Limit to 2 dir, 2 OR, N SOCKS connections per IP.
|
|
- Or maybe close connections from same IP when we get a lot from one.
|
|
- Or maybe block IPs that connect too many times at once.
|
|
- Do TLS connection rotation more often than "once a week" in the
|
|
extra-stable case.
|
|
- Streamline how we pick entry nodes: Make choose_random_entry() have
|
|
less magic and less control logic.
|
|
- when somebody uses the controlport as an http proxy, give them
|
|
a "tor isn't an http proxy" error too like we do for the socks port.
|
|
- we try to build 4 test circuits to break them over different
|
|
servers. but sometimes our entry node is the same for multiple
|
|
test circuits. this defeats the point.
|
|
- enforce a lower limit on MaxCircuitDirtiness and CircuitBuildTimeout.
|
|
- configurable timestamp granularity. defaults to 'seconds'.
|
|
- consider making 'safelogging' extend to info-level logs too.
|
|
- consider whether a single Guard flag lets us distinguish between
|
|
"was good enough to be a guard when we picked it" and "is still
|
|
adequate to be used as a guard even after we've picked it". We should
|
|
write a real proposal for this.
|
|
- make the new tls handshake blocking-resistant.
|
|
o figure out some way to collect feedback about what countries are using
|
|
bridges, in a way that doesn't screw anonymity too much.
|
|
- let tor dir mirrors proxy connections to the tor download site, so
|
|
if you know a bridge you can fetch the tor software.
|
|
- more strategies for distributing bridge addresses in a way that
|
|
doesn't rely on knowing somebody who runs a bridge for you.
|
|
- A way to adjust router status flags from the controller. (How do we
|
|
prevent the authority from clobbering them soon afterward?)
|
|
- Bridge authorities should do reachability testing but only on the
|
|
purpose==bridge descriptors they have.
|
|
- Clients should estimate their skew as median of skew from servers
|
|
over last N seconds.
|
|
- Start on the WSAENOBUFS solution.
|
|
- Stuff that weasel wants:
|
|
- Make Tor able to chroot itself
|
|
o allow it to load an entire config file from control interface
|
|
- document LOADCONF
|
|
- log rotation (and FD passing) via control interface
|
|
- chroot yourself, including inhibit trying to read config file
|
|
and reopen logs, unless they are under datadir.
|
|
|
|
Deferred from 0.2.0.x:
|
|
- Proposals
|
|
- 113: Simplifying directory authority administration
|
|
- 110: prevent infinite-length circuits (phase one)
|
|
- 118: Listen on and advertise multiple ports:
|
|
- Tor should be able to have a pool of outgoing IP addresses that it is
|
|
able to rotate through. (maybe. Possible overlap with proposal 118.)
|
|
- config option to publish what ports you listen on, beyond
|
|
ORPort/DirPort. It should support ranges and bit prefixes (?) too.
|
|
(This is very similar to proposal 118.)
|
|
- 117: IPv6 Exits
|
|
- Internal code support for ipv6:
|
|
o Clone ipv6 functions (inet_ntop, inet_pton) where they don't exist.
|
|
- Most address variables need to become tor_addr_t
|
|
- Teach resolving code how to handle ipv6.
|
|
- Teach exit policies about ipv6 (consider ipv4/ipv6 interaction!)
|
|
- Features
|
|
- Let controller set router flags for authority to transmit, and for
|
|
client to use.
|
|
- add an 'exit-address' line in the descriptor for servers that exit
|
|
from something that isn't their published address.
|
|
- More work on AvoidDiskWrites?
|
|
- Features
|
|
- Make a TCP DNSPort
|
|
- Protocol work
|
|
- MAYBE kill stalled circuits rather than stalled connections. This is
|
|
possible thanks to cell queues, but we need to consider the anonymity
|
|
implications.
|
|
- Implement TLS shutdown properly when possible.
|
|
- Bugs
|
|
- If the client's clock is too far in the past, it will drop (or just not
|
|
try to get) descriptors, so it'll never build circuits.
|
|
- Refactoring
|
|
- Make resolves no longer use edge_connection_t unless they are actually
|
|
_on_ a socks connection: have edge_connection_t and (say)
|
|
dns_request_t both extend an edge_stream_t, and have p_streams and
|
|
n_streams both be linked lists of edge_stream_t.
|
|
- Generate torrc.{complete|sample}.in, tor.1.in, the HTML manual, and the
|
|
online config documentation from a single source.
|
|
- Move all status info out of routerinfo into local_routerstatus. Make
|
|
"who can change what" in local_routerstatus explicit. Make
|
|
local_routerstatus (or equivalent) subsume all places to go for "what
|
|
router is this?"
|
|
- Blocking/scanning-resistance
|
|
- It would be potentially helpful to respond to https requests on
|
|
the OR port by acting like an HTTPS server.
|
|
- Do we want to maintain our own set of entryguards that we use as
|
|
next hop after the bridge? Open research question; let's say no
|
|
for 0.2.0 unless we learn otherwise.
|
|
- Some mechanism for specifying that we want to stop using a cached
|
|
bridge.
|
|
- Build:
|
|
- Detect correct version of libraries from autoconf script.
|
|
|
|
=======================================================================
|
|
|
|
Future versions:
|
|
- deprecate router_digest_is_trusted_dir() in favor of
|
|
router_get_trusteddirserver_by_digest()
|
|
|
|
- See also Flyspray tasks.
|
|
- See also all OPEN/ACCEPTED proposals.
|
|
- See also all items marked XXXX and FFFF in the code.
|
|
|
|
- Protocol:
|
|
- Our current approach to block attempts to use Tor as a single-hop proxy
|
|
is pretty lame; we should get a better one.
|
|
- Allow small cells and large cells on the same network?
|
|
- Cell buffering and resending. This will allow us to handle broken
|
|
circuits as long as the endpoints don't break, plus will allow
|
|
connection (tls session key) rotation.
|
|
- Implement Morphmix, so we can compare its behavior, complexity,
|
|
etc. But see paper breaking morphmix.
|
|
- Other transport. HTTP, udp, rdp, airhook, etc. May have to do our own
|
|
link crypto, unless we can bully DTLS into it.
|
|
- Need a relay teardown cell, separate from one-way ends.
|
|
(Pending a user who needs this)
|
|
- Handle half-open connections: right now we don't support all TCP
|
|
streams, at least according to the protocol. But we handle all that
|
|
we've seen in the wild.
|
|
(Pending a user who needs this)
|
|
|
|
- Directory system
|
|
- BEGIN_DIR items
|
|
X turn the received socks addr:port into a digest for setting .exit
|
|
- handle connect-dir streams that don't have a chosen_exit_name set.
|
|
- Have a "Faster" status flag that means it. Fast2, Fast4, Fast8?
|
|
- Add an option (related to AvoidDiskWrites) to disable directory
|
|
caching. (Is this actually a good idea??)
|
|
- Add d64 and fp64 along-side d and fp so people can paste status
|
|
entries into a url. since + is a valid base64 char, only allow one
|
|
at a time. Consider adding to controller as well.
|
|
- Some back-out mechanism for auto-approval on authorities
|
|
- a way of rolling back approvals to before a timestamp
|
|
- Consider minion-like fingerprint file/log combination.
|
|
- Have new people be in limbo and need to demonstrate usefulness
|
|
before we approve them.
|
|
|
|
- Hidden services:
|
|
- Standby/hotswap/redundant hidden services.
|
|
. Update the hidden service stuff for the new dir approach. (Much
|
|
of this will be superseded by 114.)
|
|
- switch to an ascii format, maybe sexpr?
|
|
- authdirservers publish blobs of them.
|
|
- other authdirservers fetch these blobs.
|
|
- hidserv people have the option of not uploading their blobs.
|
|
- you can insert a blob via the controller.
|
|
- and there's some amount of backwards compatibility.
|
|
- teach clients, intro points, and hidservs about auth mechanisms.
|
|
- come up with a few more auth mechanisms.
|
|
- auth mechanisms to let hidden service midpoint and responder filter
|
|
connection requests.
|
|
- Let each hidden service (or other thing) specify its own
|
|
OutboundBindAddress?
|
|
- Hidserv offerers shouldn't need to define a SocksPort
|
|
|
|
- Server operation
|
|
X When we notice a 'Rejected: There is already a named server with
|
|
this nickname' message... or maybe instead when we see in the
|
|
networkstatuses that somebody else is Named with the name we
|
|
want: warn the user, send a STATUS_SERVER message, and fall back
|
|
to unnamed.
|
|
- If the server is spewing complaints about raising your ulimit -n,
|
|
we should add a note about this to the server descriptor so other
|
|
people can notice too.
|
|
- When we hit a funny error from a dir request (eg 403 forbidden),
|
|
but tor is working and happy otherwise, and we haven't seen many
|
|
such errors recently, then don't warn about it.
|
|
|
|
- Controller
|
|
- Implement missing status events and accompanying getinfos
|
|
- DIR_REACHABLE
|
|
- BAD_DIR_RESPONSE (Unexpected directory response; maybe we're behind
|
|
a firewall.)
|
|
- BAD_PROXY (Bad http or https proxy)
|
|
- UNRECOGNIZED_ROUTER (a nickname we asked for is unavailable)
|
|
- Status events related to hibernation
|
|
- something about failing to parse our address?
|
|
from resolve_my_address() in config.c
|
|
- sketchy OS, sketchy threading
|
|
- too many onions queued: threading problems or slow CPU?
|
|
- Implement missing status event fields:
|
|
- TIMEOUT on CHECKING_REACHABILITY
|
|
- GETINFO status/client, status/server, status/general: There should be
|
|
some way to learn which status events are currently "in effect."
|
|
We should specify which these are, what format they appear in, and so
|
|
on.
|
|
- More information in events:
|
|
- Include bandwidth breakdown by conn->type in BW events.
|
|
- Change circuit status events to give more details, like purpose,
|
|
whether they're internal, when they become dirty, when they become
|
|
too dirty for further circuits, etc.
|
|
- Change stream status events analogously.
|
|
- Expose more information via getinfo:
|
|
- import and export rendezvous descriptors
|
|
- Review all static fields for additional candidates
|
|
- Allow EXTENDCIRCUIT to unknown server.
|
|
- We need some way to adjust server status, and to tell tor not to
|
|
download directories/network-status, and a way to force a download.
|
|
- Make everything work with hidden services
|
|
|
|
- Performance/resources
|
|
- per-conn write buckets
|
|
- separate config options for read vs write limiting
|
|
(It's hard to support read > write, since we need better
|
|
congestion control to avoid overfull buffers there. So,
|
|
defer the whole thing.)
|
|
- Look into pulling serverdescs off buffers as they arrive.
|
|
- Rate limit exit connections to a given destination -- this helps
|
|
us play nice with websites when Tor users want to crawl them; it
|
|
also introduces DoS opportunities.
|
|
- Consider truncating rather than destroying failed circuits,
|
|
in order to save the effort of restarting. There are security
|
|
issues here that need thinking, though.
|
|
- Handle full buffers without totally borking
|
|
- Rate-limit OR and directory connections overall and per-IP and
|
|
maybe per subnet.
|
|
|
|
- Misc
|
|
- Hold-open-until-flushed now works by accident; it should work by
|
|
design.
|
|
- Display the reasons in 'destroy' and 'truncated' cells under
|
|
some circumstances?
|
|
- Make router_is_general_exit() a bit smarter once we're sure what
|
|
it's for.
|
|
- Automatically determine what ports are reachable and start using
|
|
those, if circuits aren't working and it's a pattern we
|
|
recognize ("port 443 worked once and port 9001 keeps not
|
|
working").
|
|
|
|
- Security
|
|
- some better fix for bug #516?
|
|
- don't do dns hijacking tests if we're reject *:* exit policy?
|
|
(deferred until 0.1.1.x is less common)
|
|
- Directory guards
|
|
- Mini-SoaT:
|
|
- Servers might check certs for known-good ssl websites, and if
|
|
they come back self-signed, declare themselves to be
|
|
non-exits. Similar to how we test for broken/evil dns now.
|
|
- Authorities should try using exits for http to connect to some
|
|
URLS (specified in a configuration file, so as not to make the
|
|
List Of Things Not To Censor completely obvious) and ask them
|
|
for results. Exits that don't give good answers should have
|
|
the BadExit flag set.
|
|
- Alternatively, authorities should be able to import opinions
|
|
from Snakes on a Tor.
|
|
- More consistent error checking in router_parse_entry_from_string().
|
|
I can say "banana" as my bandwidthcapacity, and it won't even squeak.
|
|
- Bind to random port when making outgoing connections to Tor servers,
|
|
to reduce remote sniping attacks.
|
|
- Audit everything to make sure rend and intro points are just as
|
|
likely to be us as not.
|
|
- Do something to prevent spurious EXTEND cells from making
|
|
middleman nodes connect all over. Rate-limit failed
|
|
connections, perhaps?
|
|
- DoS protection: TLS puzzles, public key ops, bandwidth exhaustion.
|
|
|
|
- Needs thinking
|
|
- Now that we're avoiding exits when picking non-exit positions,
|
|
we need to consider how to pick nodes for internal circuits. If
|
|
we avoid exits for all positions, we skew the load balancing. If
|
|
we accept exits for all positions, we leak whether it's an
|
|
internal circuit at every step. If we accept exits only at the
|
|
last hop, we reintroduce Lasse's attacks from the Oakland paper.
|
|
|
|
- Windows server usability
|
|
- Solve the ENOBUFS problem.
|
|
- make tor's use of openssl operate on buffers rather than sockets,
|
|
so we can make use of libevent's buffer paradigm once it has one.
|
|
- make tor's use of libevent tolerate either the socket or the
|
|
buffer paradigm; includes unifying the functions in connect.c.
|
|
- We need a getrlimit equivalent on Windows so we can reserve some
|
|
file descriptors for saving files, etc. Otherwise we'll trigger
|
|
asserts when we're out of file descriptors and crash.
|
|
- Merge code from Urz into libevent
|
|
- Make Tor use evbuffers.
|
|
|
|
- Documentation
|
|
- a way to generate the website diagrams from source, so we can
|
|
translate them as utf-8 text rather than with gimp. (svg? or
|
|
imagemagick?)
|
|
. Flesh out options_description array in src/or/config.c
|
|
. multiple sample torrc files
|
|
. figure out how to make nt service stuff work?
|
|
. Document it.
|
|
- Refactor tor man page to divide generally useful options from
|
|
less useful ones?
|
|
- Add a doxygen style checker to make check-spaces so nick doesn't drift
|
|
too far from arma's undocumented styleguide. Also, document that
|
|
styleguide in HACKING. (See r9634 for example.)
|
|
- exactly one space at beginning and at end of comments, except i
|
|
guess when there's line-length pressure.
|
|
- if we refer to a function name, put a () after it.
|
|
- only write <b>foo</b> when foo is an argument to this function.
|
|
- doxygen comments must always end in some form of punctuation.
|
|
- capitalize the first sentence in the doxygen comment, except
|
|
when you shouldn't.
|
|
- avoid spelling errors and incorrect comments. ;)
|
|
|
|
- Packaging
|
|
- The Debian package now uses --verify-config when (re)starting,
|
|
to distinguish configuration errors from other errors. Perhaps
|
|
the RPM and other startup scripts should too?
|
|
- add a "default.action" file to the tor/vidalia bundle so we can
|
|
fix the https thing in the default configuration:
|
|
http://wiki.noreply.org/noreply/TheOnionRouter/TorFAQ#PrivoxyWeirdSSLPort
|
|
|
|
- Related tools
|
|
X Patch privoxy and socks protocol to pass strings to the browser.
|
|
|
|
=======================================================================
|
|
|
|
Documentation, non-version-specific.
|
|
- Specs
|
|
- Mark up spec; note unclear points about servers
|
|
NR - write a spec appendix for 'being nice with tor'
|
|
- Specify the keys and key rotation schedules and stuff
|
|
- Mention controller libs someplace.
|
|
- Remove need for HACKING file.
|
|
- document http://wiki.noreply.org/noreply/TheOnionRouter/TransparentProxy on freebsd and osx
|
|
P - figure out why x86_64 won't build rpms from tor.spec
|
|
P - figure out rpm spec files for bundles of vidalia-tor-polipo
|
|
P - figure out polipo install scripts for bundles of vidalia-tor-polipo on osx, win32
|
|
- figure out selinux policy for tor
|
|
P - change packaging system to more automated and specific for each
|
|
platform, suggested by Paul Wouter
|
|
P - Setup repos for redhat and suse rpms & start signing the rpms the
|
|
way package management apps prefer
|
|
|
|
Website:
|
|
J . tor-in-the-media page
|
|
P - Figure out licenses for website material.
|
|
(Phobos reccomends the Open Publication License with Option A at
|
|
http://opencontent.org/openpub/)
|
|
P - put the logo on the website, in source form, so people can put it on
|
|
stickers directly, etc.
|
|
P - put the source image for the stickers on the website, so people can
|
|
print their own
|
|
P - figure out a license for the logos and docs we publish (trademark
|
|
figures into this)
|
|
(Phobos reccomends the Open Publication License with Option A at
|
|
http://opencontent.org/openpub/)
|
|
P - ask Jan/Jens to be the translation coordinator? add to volunteer page.
|
|
I - add a page for localizing all tor's components.
|
|
- It would be neat if we had a single place that described _all_ the
|
|
tor-related tools you can use, and what they give you, and how well they
|
|
work. Right now, we don't give a lot of guidance wrt
|
|
torbutton/foxproxy/privoxy/polipo in any consistent place.
|
|
P - create a 'blog badge' for tor fans to link to and feature on their
|
|
blogs. A sample can be found at http://interloper.org/tmp/tor/tor-button.png
|
|
|
|
- Tor mirrors
|
|
- make a mailing list with the mirror operators
|
|
- make an automated tool to check /project/trace/ at mirrors to
|
|
learn which ones are lagging behind.
|
|
- auto (or manually) cull the mirrors that are broken; and
|
|
contact their operator?
|
|
- a set of instructions for mirror operators to make their apaches
|
|
serve our charsets correctly, and bonus points for language
|
|
negotiation.
|
|
- figure out how to load-balance the downloads across mirrors?
|
|
- ponder how to get users to learn that they should google for
|
|
"tor mirrors" if the main site is blocked.
|
|
- find a mirror volunteer to coordinate all of this
|
|
|