Commit Graph

237 Commits

Author SHA1 Message Date
Roger Dingledine
eca2a30060 make progress towards retrying our bridges when they're all
down and we get a new socks request


svn:r10967
2007-07-29 04:38:21 +00:00
Roger Dingledine
3d641bde0e Refine r10571: more work on bridge stuff.
- Only listen to responses for "authority" fetches if we're configured
    to use Bridges. Otherwise it's safe (and maybe smarter) to silently
    discard them like we used to.
  - React faster to download networkstatuses after the first bridge
    descriptor arrives.
  - Don't do dir fetches before we have any bridges, even when our 
    dirport is open.


svn:r10604
2007-06-15 02:12:15 +00:00
Roger Dingledine
af658b7828 More work towards making bridge users able to connect via bridges:
- demand options->Bridges and options->TunnelDirConns if 
    options->UseBridges is set.
  - after directory fetches, accept descriptors that aren't referenced by
    our networkstatuses, *if* they're for a configured bridge.
  - delay directory fetching until we have at least one bridge descriptor.
  - learn how to build a one-hop circuit when we have neither routerinfo
    nor routerstatus for our destination.
  - teach directory connections how to pick a bridge as the destination
    directory when doing non-anonymous fetches.
  - tolerate directory commands for which the dir_port is 0.
  - remember descriptors when the requested_resource was "authority", 
    rather than just ignoring them.
  - put bridges on our entry_guards list once we have a descriptor for them.
    When UseBridges is set, only pick entry guards that are bridges. Else
    vice versa.


svn:r10571
2007-06-12 09:17:23 +00:00
Roger Dingledine
b1ee20f0e8 trivial changes from my sandbox
svn:r10429
2007-05-31 23:57:46 +00:00
Nick Mathewson
1359871c14 r13070@catbus: nickm | 2007-05-29 15:53:21 -0400
Fix handling of resolves with very long or otherwise malformed addresses, and comment dns_resolve better, and stop making what should be a BUG warning into an assert(0).  This fixes bug 427, which was introduced around 9900/9931/9932.  Not a backport candidate: 0.1.2.x never had this bug.


svn:r10399
2007-05-29 19:54:51 +00:00
Roger Dingledine
440b7f0c70 polish r9726-r9903
svn:r10182
2007-05-13 09:25:06 +00:00
Roger Dingledine
1b95bbdba6 New config option V2AuthoritativeDirectory that all directory
authorities should set. This will let future authorities choose 
not to serve V2 directory information.

Also, go through and revamp all the authdir_mode stuff so it tries
to do the right thing if you're an auth but not a V1 or V2 auth.


svn:r10092
2007-05-02 09:12:04 +00:00
Roger Dingledine
590c6ff33d identify the exit node correctly when we timeout and detach
from a circuit, even if the exit node is in the middle.

there are probably a few more places that need this fix too.


svn:r10076
2007-04-30 23:24:38 +00:00
Nick Mathewson
43385b9bc9 r12565@catbus: nickm | 2007-04-30 10:09:07 -0400
Misc cleanup and bulletproofing on r10056.


svn:r10058
2007-04-30 14:09:11 +00:00
Roger Dingledine
5ba4eaba1c Let the controller specify HOP=%d as an argument to ATTACHSTREAM,
so we can exit from the middle of the circuit.


svn:r10056
2007-04-30 11:10:45 +00:00
Roger Dingledine
7fb4365cd3 Add a new config option __DisablePredictedCircuits designed for
use by the controller, when we don't want Tor to build any circuits
preemptively.


svn:r10054
2007-04-30 09:18:48 +00:00
Roger Dingledine
397afcc3f6 Make PreferTunneledDirConns and TunnelDirConns work even when
we have no cached directory info. This means Tor clients can now
do all of their connections protected by TLS.


svn:r10035
2007-04-27 10:26:09 +00:00
Nick Mathewson
da6bd21b72 r12644@0-41-wifi: nickm | 2007-03-23 16:02:23 -0400
Eliminate more redundant circuit_t arguments when edge_connection_t is already supplied and the circuit is already attached.


svn:r9900
2007-03-24 15:58:11 +00:00
Nick Mathewson
7fcceb2c25 r12074@catbus: nickm | 2007-03-04 15:11:43 -0500
Make all LD_BUG log messsages get prefixed with "Bug: ".  Remove manually-generated "Bug: "s from log-messages.  (Apparently, we remembered to add them about 40% of the time.)


svn:r9733
2007-03-04 20:11:46 +00:00
Roger Dingledine
a46bd9942d bonus points if it builds on 64 bit
svn:r9698
2007-03-01 03:59:28 +00:00
Roger Dingledine
b0aaa88433 make the prefertunnel stuff less obviously broken
svn:r9697
2007-03-01 03:56:21 +00:00
Roger Dingledine
50f22e858a doc pedant
svn:r9634
2007-02-24 07:50:38 +00:00
Nick Mathewson
a98efbf285 r11877@catbus: nickm | 2007-02-22 02:24:50 -0500
Fix doc about when circuit_build_needed_circs() is called. Resolves another xxxx012.


svn:r9617
2007-02-22 07:41:14 +00:00
Nick Mathewson
2a4fc8533c r11858@catbus: nickm | 2007-02-21 00:27:44 -0500
As a trivial optimization, remove a redundant call to router_have_minimum_dir_info.  This might shave 2% on some systems by according to some profilers.


svn:r9610
2007-02-21 05:56:53 +00:00
Nick Mathewson
d2893398f6 r11832@catbus: nickm | 2007-02-16 15:31:59 -0500
Fix 35 remaining DOCDOC comments. Yowza.


svn:r9596
2007-02-16 20:39:37 +00:00
Nick Mathewson
759c58151e r11775@catbus: nickm | 2007-02-12 16:39:09 -0500
Update copyright dates.


svn:r9570
2007-02-12 21:39:53 +00:00
Nick Mathewson
fefba95363 r11629@catbus: nickm | 2007-02-02 15:06:17 -0500
Removing the last DOCDOC comment hurt so much that I had to use Doxygen to identify undocumented macros and comments, and add 150 more DOCDOCs to point out where they were.  Oops.  Hey, kids!  Fixing some of these could be your first Tor patch!


svn:r9477
2007-02-02 20:06:43 +00:00
Roger Dingledine
add7d7af19 Bring us one step closer to being able to establish an encrypted
directory tunnel without knowing a descriptor first. Still not
ready yet. As part of the change, now assume we can use a
create_fast cell if we don't know anything about a router.


svn:r9440
2007-01-27 19:29:16 +00:00
Roger Dingledine
37b5132ad8 Expire socks connections if they spend too long waiting for the
handshake to finish. Previously we would let them sit around for
days, if the connecting application didn't close them either.

Also take this opportunity to refactor a duplicate bit of circuituse.c.

And change the semantics of SocksTimeout slightly, but I think it'll
be ok.


svn:r9350
2007-01-15 09:09:03 +00:00
Nick Mathewson
c8466c5919 r11824@Kushana: nickm | 2007-01-03 17:15:28 -0500
control-spec: upcase arguments in status events; note unimplemented events individually
 r11825@Kushana:  nickm | 2007-01-03 17:41:43 -0500
 Implement EXTERNAL IP server status event.
 r11826@Kushana:  nickm | 2007-01-03 17:47:10 -0500
 Implement BAD_SERVER_DESCRIPTOR server status event.
 r11827@Kushana:  nickm | 2007-01-03 18:01:56 -0500
 Implement SOCKS_UNKNOWN_PROTOCOL and DANGEROUS_SOCKS client events.
 r11828@Kushana:  nickm | 2007-01-03 18:23:22 -0500
 Implement BUG controller events. Also, flush ERR-level status events just like ERR-level log messages.
 r11829@Kushana:  nickm | 2007-01-03 23:37:27 -0500
 Yet more status events: CLOCK_SKEW, GOOD/ACCEPTED_SERVER_DESCRIPTOR, {CHECKING_}REACHABILITY_{SUCCEEDED|FAILED}
 r11833@Kushana:  nickm | 2007-01-05 16:56:37 -0500
 Note some unimplementedness in control-spec.txt


svn:r9279
2007-01-06 05:42:31 +00:00
Roger Dingledine
ad5ce3c7ed fix whitespace; add a todo item
svn:r9148
2006-12-18 08:24:22 +00:00
Roger Dingledine
97c83a4c09 finish enabling begin-dir cells. require one-hop circs for
socks-command-connect-dir streams, so we don't open new anonymity
questions.


svn:r9099
2006-12-13 02:49:45 +00:00
Roger Dingledine
0dbf725927 Infrastructure to test BEGIN_DIR cells.
New socks command CONNECT_DIR. New config option TunnelDirConns that
builds a circ ending at the directory server and delivers a BEGIN_DIR
cell if it's running 0.1.2.2-alpha or later. We still need to make
one-hop circs when appropriate, while making other conns avoid them.


svn:r9098
2006-12-13 00:28:56 +00:00
Roger Dingledine
477438e6c7 a better fix. puts r8446 to bed.
svn:r9096
2006-12-12 21:09:30 +00:00
Roger Dingledine
1efd377428 Fix a bug in 0.1.2.2-alpha that prevented clients from asking
to resolve an address at a given exit node even when they ask for
it by name.


svn:r9095
2006-12-12 20:23:17 +00:00
Roger Dingledine
e206d22297 some more cleanups and a bugfix on r9052
svn:r9062
2006-12-10 08:04:50 +00:00
Nick Mathewson
a91c12f2e7 r9855@Kushana: nickm | 2006-12-04 00:55:09 -0500
Merge circuit_about_to_close_connection and connection_about_to_close_connection.


svn:r9021
2006-12-04 05:55:40 +00:00
Nick Mathewson
b713b370bf r9060@totoro: nickm | 2006-10-17 11:12:48 -0400
Apply patch from Mike Perry: add more reasons for circuit destroys. (Slightly tweaked to avoid allocating a number for an "internal" reason.)


svn:r8739
2006-10-17 15:20:00 +00:00
Roger Dingledine
7d33c4b904 clean up and downgrade some log messages
svn:r8727
2006-10-15 07:42:51 +00:00
Roger Dingledine
552d828def - Stop triggering asserts if the controller tries to extend hidden
service circuits.
(also found by mwenge)


svn:r8682
2006-10-09 22:26:21 +00:00
Nick Mathewson
26283e69ba r8973@totoro: nickm | 2006-10-09 11:45:47 -0400
Touch up last patch (to add REASON to CIRC events): make some reasons
 more sensible, send reasons only to controllers that have enabled
 extended events, and clean up whitespace.
 
 


svn:r8672
2006-10-09 15:47:50 +00:00
Nick Mathewson
b76fd968b4 r8972@totoro: nickm | 2006-10-09 10:36:22 -0400
Patch from Mike Perry: add a REASON field to closed and failed circ events.


svn:r8671
2006-10-09 15:47:27 +00:00
Roger Dingledine
1cf37f90c4 bugfix and cleanups re: entry guards.
svn:r8620
2006-10-06 23:37:07 +00:00
Nick Mathewson
4c10464e13 r8861@totoro: nickm | 2006-10-03 14:49:54 -0400
Fix bug in r8579: TrackHostExits .foo.bar implies TrackHostExits foo.bar; also fix logic error.


svn:r8592
2006-10-03 19:00:12 +00:00
Nick Mathewson
4de9f45d6f r8850@totoro: nickm | 2006-10-02 17:21:11 -0400
Make TrackExitHosts case-insensitive, and fix the behavior of .suffix TrackExitHosts items to avoid matching in the middle of an address. (Resolves an XXXX)


svn:r8579
2006-10-02 22:13:37 +00:00
Roger Dingledine
4096e577c5 if we fail to build a circuit to an intended enclave, and it's
not mandatory that we use that enclave, stop wanting it.


svn:r8559
2006-10-01 06:41:13 +00:00
Nick Mathewson
9988112c87 r8973@Kushana: nickm | 2006-09-28 16:53:19 -0400
Refactor entry guard status logic a lot; allow more factors [like not
 having a Guard flag or being listed in ExcludeNodes] to render a guard
 "unlisted" (now called "unusable"); track guard down status (now
 called "unreachable") separately from is_running.


svn:r8519
2006-09-28 23:57:44 +00:00
Nick Mathewson
6b3f6afb58 r8895@Kushana: nickm | 2006-09-21 20:05:11 -0400
Debug client-side reverse dns code.


svn:r8452
2006-09-22 00:44:07 +00:00
Nick Mathewson
4f13cb82fd r8881@Kushana: nickm | 2006-09-21 17:27:59 -0400
Allow resolve requests to non-exits when they are specifically requested (via resolve foo.bar.exit).


svn:r8446
2006-09-21 21:49:36 +00:00
Nick Mathewson
6a1746f98f r8877@Kushana: nickm | 2006-09-21 17:12:33 -0400
Consider non-exit servers unsuitable for RESOLVE commands.


svn:r8442
2006-09-21 21:48:42 +00:00
Roger Dingledine
0494e271e7 good god, that was a bad idea. i've built 500 circuits in the past 5
minutes, trying to establish reachability of my unreachable server.


svn:r8415
2006-09-18 04:59:15 +00:00
Roger Dingledine
b049b1b014 build testing circuits more rapidly. this has a failure mode
where if circuits fail quickly, we'll fail a lot of them very
quickly and not retry for a while. so be it.


svn:r8407
2006-09-17 06:18:06 +00:00
Roger Dingledine
c22dc94fe6 make my bandwidth exercises actually happen
svn:r8400
2006-09-15 05:53:00 +00:00
Roger Dingledine
769f9201a6 Send out a burst of long-range drop cells after we've established that
we're reachable. Spread them over 4 circuits, so hopefully a few will
be fast. This exercises our bandwidth and bootstraps us quicker.


svn:r8399
2006-09-15 05:30:25 +00:00
Nick Mathewson
fd36eb0788 r8576@Kushana: nickm | 2006-08-25 17:16:01 -0400
Fix bug 314: Instead of checking address_in_virtualrange, check addressmap_have_mapping().  This should be more accurate.  [Rename to addressmap_have_mapping() from addressmap_already_mapped().]


svn:r8226
2006-08-25 21:16:22 +00:00
Nick Mathewson
5227395aba r6922@Kushana: nickm | 2006-07-26 16:32:24 -0400
Rename some fields, compress a bitfield, and document some structs and fields


svn:r6919
2006-07-27 05:03:57 +00:00
Nick Mathewson
ec82db6995 r6909@Kushana: nickm | 2006-07-26 13:05:58 -0400
Clean up wide lines from last patch.


svn:r6907
2006-07-26 19:07:37 +00:00
Nick Mathewson
4ff4577beb r6908@Kushana: nickm | 2006-07-26 12:38:52 -0400
Refactor connection_t into edge, or, dir, control, and base subtypes.  This might save some RAM on busy exit servers, but really matters most in terms of correctness.


svn:r6906
2006-07-26 19:07:26 +00:00
Nick Mathewson
a88ec48a39 r6902@Kushana: nickm | 2006-07-25 17:30:27 -0400
Move rend_query to origin_circuit_t where it belongs; save another 17 bytes per OR circuit.


svn:r6903
2006-07-26 19:05:34 +00:00
Nick Mathewson
7239262f71 Don't tell anybody, but we're going OO here. This patch splits
circuit_t into origin_circuit_t and or_circuit_t.  I fixed some
segaults; there may be more.  We still need to move more rendezvous
stuff into subtypes.

This is a trial run for splitting up connection_t; if the approach is
insane, please say so soon so we can do something smarter.

Also, this discards the old HALF_OPEN code, which nobody seems to
want.


svn:r6817
2006-07-23 07:37:35 +00:00
Roger Dingledine
388ac4126a If we are using an exit enclave and we can't connect, e.g. because
its webserver is misconfigured to not listen on localhost, then back
off and try connecting from somewhere else before we fail.


svn:r6783
2006-07-18 00:59:46 +00:00
Roger Dingledine
a8444c6f53 pick a log domain; resolve an xxxx
svn:r6782
2006-07-18 00:01:12 +00:00
Roger Dingledine
18eb8192db remove a bit more obsolete code
svn:r6566
2006-06-08 09:35:20 +00:00
Roger Dingledine
542b8af592 don't tell people that the testing circuit failed if we already
consider ourselves reachable. this just confuses them.


svn:r6546
2006-06-05 10:01:52 +00:00
Roger Dingledine
8f3bb66ebc simplify some code, since circuit_build_failed() is only called
on non-open circuits.


svn:r6540
2006-06-05 08:25:02 +00:00
Nick Mathewson
853e2d99b6 Add a new warning to our "warn a lot" list: unused parameters. This means we have to explicitly "use" unuseds, but it can catch bugs. (It caught two coding mistakes so far.)
svn:r6532
2006-06-04 22:42:13 +00:00
Roger Dingledine
ae2648fb1c stop fetching descriptors if we're not a dir mirror and we
haven't tried to establish any circuits lately.


svn:r6516
2006-05-30 06:19:06 +00:00
Nick Mathewson
6ebd886511 forward-port: "Resolve" all XXX011 items, mostly by marking them non-011.
svn:r6396
2006-04-18 03:07:24 +00:00
Roger Dingledine
21263982e4 Don't yell loudly about failed internal/bridge connections. These
are reachability testing and rendserv upload/downloads, and they
have their own failure messages elsewhere.


svn:r6343
2006-04-09 21:36:37 +00:00
Roger Dingledine
6f08d121d9 Refactor and consolidate addr/exit policies into a new policies.c.
Fix some minor bugs and memory leaks along the way.


svn:r6246
2006-03-27 02:25:34 +00:00
Roger Dingledine
6fb2b6785d whoops. inform circuits again when we failed to connect to their
first hop, so they don't have to time out.


svn:r6225
2006-03-22 04:09:30 +00:00
Roger Dingledine
216e349cb2 parameterize two more timeout constants in circuit-land.
svn:r6220
2006-03-22 00:52:37 +00:00
Roger Dingledine
28fafb9022 new config option SocksTimeout: How long do we let a socks connection
wait unattached before we fail it?

Use this value for controller socks timeout, for normal socks
timeout, and for hidden-service socks timeout.


svn:r6217
2006-03-21 23:27:43 +00:00
Roger Dingledine
8a8a84dd52 don't call circuit_n_conn_done() if the closing conn is already open.
svn:r6214
2006-03-21 22:22:48 +00:00
Roger Dingledine
65b575c03d Be more patient before giving up on in-progress circuits.
I have absolutely no idea if this change helps or hurts.
Somebody should study this.


svn:r6212
2006-03-21 21:22:52 +00:00
Roger Dingledine
c06e6ddadd Finish the transition from the word 'verified' to the words
'named' and 'valid'.


svn:r6188
2006-03-19 01:21:59 +00:00
Nick Mathewson
053411e827 Comments: cleanups and additions.
svn:r6174
2006-03-17 05:50:41 +00:00
Nick Mathewson
474c60b743 Cleanup on time-relaqted constants. New conventions:
1) Surround all constants by (parens), whether we'll be using them
     in a denominator or not.
  2) Express all time periods as products (24*60*60), not as multiplied-out
     constants (86400).
  3) Comments like "(60*60) /* one hour */" are as pointless as comments
     like "c = a + b; /* set c to the sum of a and b */".  Remove them.
  4) All time periods should be #defined constants, not given inline.
  5) All time periods should have doxygen comments.
  6) All time periods, unless specified, are in seconds.  It's not necessary
     to say so.

To summarize, the old (lack of) style would allow:

  #define FOO_RETRY_INTERVAL 60*60 /* one hour (seconds) */
  next_try = now + 3600;

The new style is:

  /** How often do we reattempt foo? */
  #define FOO_RETRY_INTERVAL (60*60)

  next_try = now + RETRY_INTERVAL;


svn:r6142
2006-03-12 22:48:18 +00:00
Nick Mathewson
5777ee0e1a Add some functions to escape values from the network before sending them to the log. Use them everywhere except for routerinfo->plaftorm, routerinfo->contact_info, and rend*.c. (need sleep now)
svn:r6087
2006-03-05 09:50:26 +00:00
Roger Dingledine
36484f873a convert some more source files to the new log convention
svn:r6002
2006-02-13 08:28:42 +00:00
Nick Mathewson
1dc90be4f0 Retry pending server downloads as well as pending networkstatus downloads when we unexpectedly get an app connection
svn:r5962
2006-02-11 21:29:12 +00:00
Roger Dingledine
5f051574d5 Happy new year!
svn:r5949
2006-02-09 05:46:49 +00:00
Roger Dingledine
7d1f675c85 entry nodes are now entry guards.
this is our last easy chance for a wholesale change. heave ho.


svn:r5782
2006-01-10 22:42:44 +00:00
Nick Mathewson
878962bee1 Add reasons to DESTROY and RELAY_TRUNCATED cells.
svn:r5734
2006-01-05 21:23:03 +00:00
Roger Dingledine
dbd7b97eff helper nodes are dead. long live entry nodes.
(config options EntryNodes and StrictEntryNodes still not
implemented.)


svn:r5673
2005-12-28 09:07:31 +00:00
Roger Dingledine
bbc4c8cef8 fix a spacing problem introduced by our 80-column requirement
svn:r5669
2005-12-27 10:11:29 +00:00
Roger Dingledine
d2171cb7a4 if the network is down, and we try to connect to a conn because we
have a circuit in mind, and we timeout (30 seconds) because the
network never answers, we were expiring the circuit, but we weren't
obsoleting the connection or telling the helper functions. now do that.


svn:r5668
2005-12-27 09:25:50 +00:00
Nick Mathewson
ce71b17224 Clean fake_status a bit. Switch from has_fetched_directory to have_minimum_dir_info, and make the latter function smarter.
svn:r5591
2005-12-15 20:44:15 +00:00
Nick Mathewson
1af630d32c Bite the bullet and limit all our source lines to 80 characters, the way IBM intended.
svn:r5582
2005-12-14 20:40:40 +00:00
Roger Dingledine
5981169440 mark the helper node as down if we time-out on the circuit handshake
with him.


svn:r5567
2005-12-11 11:55:41 +00:00
Roger Dingledine
58366ffd24 when we changed from log_fn to debug/info/notice/warn/err,
we screwed up the formatting in wild and unpredictable ways.

fix it before it becomes convention to format logs in wild and
unpredictable ways.

still need to do src/common/ someday.


svn:r5551
2005-12-10 09:36:26 +00:00
Nick Mathewson
d2123388ad Better fix for last bug: avoids trying to double-mark circuits.
svn:r5511
2005-12-05 19:45:54 +00:00
Roger Dingledine
26b49dbc09 Bugfix for trackhostexits: write down the fingerprint of the chosen exit,
not its nickname, because the chosen exit might not be verified.


svn:r5499
2005-12-05 00:15:42 +00:00
Roger Dingledine
bb8dc691eb Fix another time comparison bug in circuit_stream_is_being_handled().
Nick, can you confirm this one?
This is also a backport candidate.


svn:r5497
2005-12-04 22:23:24 +00:00
Roger Dingledine
ef000fd82e ok, i know this one was a bug. we were expiring open general
circuits after they had been around for 30 seconds.


svn:r5496
2005-12-04 22:19:04 +00:00
Roger Dingledine
7d032bd300 take back half of my bugfix. comparing times sucks.
but leave the other half.


svn:r5495
2005-12-04 21:59:15 +00:00
Roger Dingledine
d60f514f4c fix the first bug with our optimization to circuit_expire_building():
we were killing off rendezvous circuits unless they magically time-warped
to be too old before we got around to killing them, in which case we
would leave them alone. this made it hard to rendezvous with hidden
services.


svn:r5494
2005-12-04 21:51:50 +00:00
Nick Mathewson
1b0134dda8 Clean up some comments; remove some dead code
svn:r5493
2005-12-03 16:32:29 +00:00
Nick Mathewson
61c5a9ae2b Use a switch statement and some mild refactoring to try to speed up circuit_expire_building
svn:r5492
2005-12-03 05:29:05 +00:00
Nick Mathewson
c90d6c7e5f Make arguments to circuit_set_circid_orconn match the connection that is closing in circuit_about_to_close_connection. This accounts for our mysterious "arbitrary ram gets decremented!" bug.
svn:r5465
2005-11-29 17:13:34 +00:00
Nick Mathewson
652e1899ac "How about 'never'? Does 'never' work for you?"
Weasel says circuit_get_by_conn is his main timesink.  Most of its
users were just checking whether OR conns had circuits, so add a
circuit count to OR conns, and check that. One was
circuit_about_to_close_conn, which was doing an O(n^2) series of calls
to get all circs on an OR conn, so make an O(n) function for that.
Finally, circuit_get_by_edge_conn was using it as a sanity test that
has been around for a while but never found any actualy insanity, so
kill that.

circuit_get_by_conn is finally dead, which is good, since it was never
sane to begin with.


svn:r5460
2005-11-26 01:43:57 +00:00
Roger Dingledine
fe221f3dff Start the process of treating internal circuits and exit circuits
separately. It's important to keep them separate because internal
circuits have their last hops picked like middle hops, rather than like
exit hops. So exiting on them will break the user's expectations.

- Stop cannibalizing internal circuits for general exits, and stop
  cannibalizing exit circuits for rendezvous stuff.

- Don't let new exit streams attach to internal circuits.

- When deciding if we have enough circuits for internal and for exit,
  don't count the wrong ones.

- Treat predicted resolves as predicted port 80 exits.


svn:r5457
2005-11-25 08:08:56 +00:00
Roger Dingledine
7aae63994f Recover better from TCP connections to Tor servers that are broken but
don't tell you (it happens!); and rotate TLS connections once a week.

1) If an OR conn becomes more than a week old, make it obsolete.
2) If it's obsolete and empty, kill it.
3) When an OR makes a second connection to you, allow it.
4) If we want to send a new create cell, but the best conn we've
   got is obsolete, and the router is 0.1.1.9-alpha-cvs or later, ask
   for a new conn instead.
5) When we time out on circuit building on the first hop, make that
   connection obsolete.


svn:r5429
2005-11-19 06:57:44 +00:00
Nick Mathewson
9b432311c4 Make new logging stuff work on windows; fix a couple of windows typos.
svn:r5375
2005-11-15 03:05:23 +00:00
Roger Dingledine
862a997495 when we were cannibalizing a circuit with a particular exit
node in mind, we weren't checking to see if that exit node
was already present earlier in the circuit. oops.


svn:r5357
2005-11-11 19:25:30 +00:00