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381 Commits

Author SHA1 Message Date
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
d853c9a009 bugfix: when we removed a dead helper node, we never committed that 
change to disk.


svn:r5576
 2005-12-13 02:52:38 +00:00
Roger Dingledine
bf4da967c1 Don't use helper nodes for circuits with purpose 'testing'. 
Also, when picking the helper node for a given circuit,
exclude the circuit's exit from your choices.


svn:r5569
 2005-12-11 12:14:26 +00:00
Roger Dingledine
a131783c8b when removing dead helpers, only write or_state to disk once at the 
end, not for every helper you remove.


svn:r5568
 2005-12-11 11:56:17 +00:00
Roger Dingledine
9c01fa3d59 fix yet another time comparison bug. we were abandoning helpers 
as soon as they became unavailable. (is this true?)


svn:r5565
 2005-12-11 11:23:36 +00:00
Roger Dingledine
f3349d6ed3 fix an error in reporting why we abandoned a helper node 
svn:r5564
 2005-12-11 11:20:26 +00:00
Roger Dingledine
b974f67c01 choose helper nodes to have high capacity always 
svn:r5563
 2005-12-11 11:20:01 +00:00
Roger Dingledine
defa3804cf explain why 0.1.1.9-alpha-cvs is a special version. 
svn:r5552
 2005-12-10 21:07:21 +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
Roger Dingledine
9b0a40ec78 crank the max line limit down to 150 chars. 
svn:r5550
 2005-12-10 08:27:01 +00:00
Roger Dingledine
8730190914 when we're checking reachability, make it clearer in the logs 
what to expect.


svn:r5538
 2005-12-08 21:12:47 +00:00
Roger Dingledine
d3dcea08af remove a redundant memcpy when extending to a new server 
and attaching circuits to it.


svn:r5537
 2005-12-08 20:33:57 +00:00
Nick Mathewson
e9b66ec906 Document CREATE_FAST better in the code. Move our key expansion algorithm into a separate function in crypto.c 
svn:r5530
 2005-12-08 17:38:32 +00:00
Nick Mathewson
f031ee8246 Make clients use CREATE_FAST cells. add an option to disable this. 
svn:r5524
 2005-12-07 22:09:02 +00:00
Roger Dingledine
4902ece698 what the heck is wrong with this little piece of code? 
why can none of us get it right?
it looks so simple.


svn:r5521
 2005-12-07 04:43:39 +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
148a1e969d Shave off another 4.7%: remove a linear search when figuring out which circuits wanted us to open a given OR connection. 
svn:r5489
 2005-12-03 02:12:37 +00:00
Nick Mathewson
3bd613b44d Rename connection_get_by_identity_digest to reflect that it is OR-only. Make it use a hashtable instead of a linear search. 
svn:r5469
 2005-11-30 03:01:16 +00:00
Roger Dingledine
2350e487a2 minor cleanup 
svn:r5454
 2005-11-24 06:44:13 +00:00
Roger Dingledine
ea7fe0c267 Fix a bug found by Lasse Overlier: when we were making internal circuits 
(intended to be cannibalized later for rendezvous and introduction
circuits), we were picking them so that they had useful exit nodes. There
was no need for this, and it actually aids some statistical attacks.


svn:r5453
 2005-11-24 06:43:39 +00:00
Roger Dingledine
5b583073a1 remove some more dead code (found while hunting lasse's bug) 
svn:r5452
 2005-11-24 06:06:50 +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
Roger Dingledine
f824fb5f83 Bugfix: it looks like some middleman circuits were spending the 
first few moments of their existence in CIRCUIT_STATE_OPEN, then
when Alice sent an extend request for a Tor that they're not connected
to, they switched to CIRCUIT_STATE_OR_WAIT and spent the rest of
their sorry little lives in that state, even when the connection
was established and they were shuttling relay cells back and forth.

And I'm not going to backport this (yet), because somehow it worked!


svn:r5427
 2005-11-19 01:55:58 +00:00
Nick Mathewson
75d85c8214 On directory servers, old_routers was wasting hundreds of bytes per superseded router descriptor. Roll the signed descriptor info and identifying info into a cache_info struct, and use only that for old_routers. 
svn:r5349
 2005-11-05 20:15:27 +00:00
Roger Dingledine
44b3f3060a make circ->onionskin a pointer, not a static array. moria2 was using 
125000 circuit_t's after it had been up for a few weeks, which translates
to 20+ megs of wasted space.


svn:r5333
 2005-10-29 19:13:48 +00:00
Nick Mathewson
5d85560d9e Remove last vestiges of old logging interface. 
svn:r5317
 2005-10-25 18:01:01 +00:00
Nick Mathewson
26caf69555 Fix possible minor memory leak when parsing helpernode state 
svn:r5305
 2005-10-25 07:00:03 +00:00
Nick Mathewson
fa338d85db Fix one possible source of reuse-a-circuit-id bug; convert circuitbuild to new logging 
svn:r5301
 2005-10-24 19:37:45 +00:00
Nick Mathewson
3347c1741d Refactor routerlist access slightly: always use router_get_by_routerlist(); change its interface; add modifier functions to add/remove elements from the current routerlist (so we can add indices). 
svn:r5276
 2005-10-18 17:43:54 +00:00
Roger Dingledine
bec2271029 fix a few comments 
svn:r5262
 2005-10-17 08:41:58 +00:00
Peter Palfrader
7b15f77dd6 Make a few INFO log lines into DEBUG 
svn:r5257
 2005-10-17 02:13:36 +00:00
Roger Dingledine
ae92a91d96 more log uncluttering 
svn:r5254
 2005-10-17 01:29:28 +00:00
Nick Mathewson
905ef987e2 Make --hash-password not craash on exit. 
svn:r5243
 2005-10-12 19:08:48 +00:00
Nick Mathewson
61ea516885 Check for named servers when looking them up by nickname; 
warn when we'recalling a non-named server by its nickname;
don't warn twice about the same name.

Fix a bug in routers_update_status_from_networkstatus that made nearly
all clients never update routerinfo_t.is_named.

Try to list MyFamily elements by key, not by nickname.

Only warn about names that we generated ourself, or got from the local
user.

On TLS handshake, only check the other router's nickname against its
expected nickname if is_named is set.


svn:r5185
 2005-10-04 22:23:31 +00:00
Roger Dingledine
88c37f2d24 comment cleanups 
svn:r5181
 2005-10-04 06:53:59 +00:00
Nick Mathewson
9e54e2e293 free helper node status info on shutdown 
svn:r5177
 2005-09-30 21:38:57 +00:00
Nick Mathewson
5c53545d81 Add a bunch more warnings to out warning suite; resolve them; pack structs a little better. 
svn:r5150
 2005-09-29 22:59:17 +00:00
Nick Mathewson
d4e0af7822 Fix a bunch of log messages. Deprecate some routerlist fields; remove others, and status_set_at from routerinfo_t. Compress routerlist.c cleanup functions. Update cached networkstatus mtime when we download the same one twice. Change some interfaces. 
svn:r5068
 2005-09-14 23:42:06 +00:00
Nick Mathewson
922cee3d0c Clean up a few warnings that make gcc twig out a bit. 
svn:r5062
 2005-09-14 20:59:25 +00:00
Roger Dingledine
26cc51ffea a bit more code cleanup 
svn:r5033
 2005-09-13 21:24:51 +00:00
Roger Dingledine
1d9786a392 generalize route length to three plus one if the exit node is risky. 
svn:r4978
 2005-09-10 01:01:40 +00:00
Roger Dingledine
69da0ef757 add punctuation 
svn:r4924
 2005-09-08 06:49:02 +00:00
Nick Mathewson
e863771485 Log when falling back to nonfast/nonstabl routers 
svn:r4869
 2005-08-26 22:16:32 +00:00
Roger Dingledine
6577e08e38 when we're trying to build a circuit and we're being picky about what 
sort we get but there aren't any suitable servers, try being less picky
rather than simply failing.


svn:r4867
 2005-08-26 22:10:22 +00:00
Roger Dingledine
23ed3c9786 whoops, avoid printing a null string sometimes 
svn:r4815
 2005-08-22 22:58:38 +00:00
Roger Dingledine
435d2d8fde when we begin reachability testing, log the address:port for each 
port we're testing, so people are more likely to notice that they're
using the wrong ip address.


svn:r4808
 2005-08-22 05:46:02 +00:00
Roger Dingledine
f57d062d9c Implement exit enclaves: if we know an IP address for the destination, 
and there's a running Tor server at that address which allows exit to
the destination, then extend the circuit to that exit first.
Also, if the user asks for a .exit node, cannibalize general circs for it.


svn:r4779
 2005-08-15 03:25:40 +00:00
Nick Mathewson
789374dbbd Make GCC very happy, even with lots of warnings set. Also, try to fix some reported Solaris x86 warnings. 
svn:r4770
 2005-08-12 17:24:53 +00:00
Nick Mathewson
249b72f53e Replace (Fascist)Firewall* with a new ReachableAddresses option that understands address policies. 
svn:r4751
 2005-08-08 21:58:48 +00:00
Nick Mathewson
01d0788950 Generalize FirewallPorts to FirewallIPs so I can run happily when locked in net 18. 
svn:r4737
 2005-08-07 21:24:00 +00:00
Nick Mathewson
4cb89fd557 Implement some more GETINFO goodness: expose helper nodes, config options, getinfo keys. 
svn:r4694
 2005-08-04 19:56:41 +00:00
Nick Mathewson
d90841ff5a Fix bug in state parsing 
svn:r4681
 2005-07-28 19:08:51 +00:00
Nick Mathewson
299af3d393 Possibly broken implementation of persistant state; handles helper nodes; does not handle accounting info yet. 
svn:r4680
 2005-07-28 19:01:48 +00:00
Roger Dingledine
9385a96235 fix typos 
svn:r4645
 2005-07-23 04:35:58 +00:00
Nick Mathewson
bb4ebaac6f document code for hibernation 
svn:r4644
 2005-07-23 04:12:35 +00:00
Nick Mathewson
18c11eb3bc Be consistent about preferring foo* to struct foo* 
svn:r4637
 2005-07-22 21:12:10 +00:00
Nick Mathewson
c3a62c1739 Initial, somewhat dodgy implementation of helper nodes. It has too many XXXXs, it logs too verbosely, and it doesnt do persistence. 
svn:r4633
 2005-07-22 17:32:25 +00:00
Roger Dingledine
11bd4bc521 in circuit_list_path(), don't redundantly print the intended exit 
nickname when the circuit is open.


svn:r4622
 2005-07-20 20:33:13 +00:00
Roger Dingledine
e479cc935e stop asserting if we have a controller listening for circuit events 
and we're offline so we fail to make a circuit and it tries to notify
us about the zero-length circuit.


svn:r4600
 2005-07-18 23:18:00 +00:00
Roger Dingledine
2259032ea1 trivial changes on nick's rendezvous commit 
svn:r4553
 2005-07-14 08:43:19 +00:00
Nick Mathewson
ec83652357 Logic to implement rendezvous/introduction via unknown servers. 
- Add a new extend_info_t datatype to hold information needed to
  extend a circuit (addr,port,keyid,onion_key).  Use it in cpath and
  build_state.  Make appropriate functions take or return it instead of
  routerinfo_t or keyid.

- #if 0 needless check in circuit_get_by_edge_conn; if nobody triggers this
  error in 0.1.0.10, nobody will trigger it.

- Implement new hidden service descriptor format, which contains "extend
  info" for introduction points, along with protocol version list.
  - Parse new format.
  - Generate new format
  - Cache old and new formats alongside each other.
  - Directories serve "old" format if asked in old way, "newest available"
    format if asked in new way.
  - Use new format to find introduction points if possible; otherwise fall
    back.  Keep nickname lists and extendinfo lists in sync.
  - Tests for new format.

- Implement new "v2" INTRODUCE cell format.
  - Accept new format
  - Use new format if we have a versioned service descriptor that says the
    server accepts the new format.

- Add documentation for functions and data types.


svn:r4506
 2005-06-29 21:46:55 +00:00
Nick Mathewson
d4972bd2e1 Remove code that has been #if-0ed for a long time. 
svn:r4435
 2005-06-15 18:34:46 +00:00
Roger Dingledine
91b1fb7ff7 some more cleaning and docing 
svn:r4415
 2005-06-11 21:17:38 +00:00
Nick Mathewson
232861ba42 Docment or add DOCDOC comments to undocumented functions in src/or. Make function definition format uniform. 
svn:r4411
 2005-06-11 18:52:12 +00:00
Nick Mathewson
0831823763 Change end-of-file NLNL convention. It turns out arma I and I agree. 
svn:r4382
 2005-06-09 19:03:31 +00:00
Nick Mathewson
a6f51001a5 New whitespace normalization rule: no blank line at EOF. 
svn:r4378
 2005-06-09 16:46:51 +00:00
Roger Dingledine
9abef5e483 allow the middle hop of the testing circuit to be running 
any version, now that most of them have the bugfix to let
them connect to unknown servers.


svn:r4263
 2005-05-17 19:46:43 +00:00
Roger Dingledine
28195a0eb1 clean up some log entries 
svn:r4228
 2005-05-15 05:00:24 +00:00
Nick Mathewson
10b2208d93 Make Tor compile with no warnings with gcc4.0 on OSX 
svn:r4184
 2005-05-07 05:55:06 +00:00
Roger Dingledine
5265bbd2b8 first iteration of scrubbing sensitive strings from logs. 
also generally clean up log messages.


svn:r4174
 2005-05-03 10:04:08 +00:00
Nick Mathewson
830ac87611 Actually, dont send CREATE_FAST cells at all for now 
svn:r4163
 2005-05-02 22:39:59 +00:00
Nick Mathewson
ab34901263 New and frightening code to implement fast-path first-hop CREATE_FAST cells. Watch out when we bump the version to 0.1.0.6-rc! 
svn:r4162
 2005-05-02 22:35:18 +00:00
Roger Dingledine
509405a5f7 clean up this TOR_FRAGILE business 
svn:r4116
 2005-04-26 18:52:16 +00:00
Roger Dingledine
f3ea883ccd bugfix: stop trying to print a null pointer if an OR conn fails 
because we didn't like its cert.


svn:r4111
 2005-04-25 15:43:37 +00:00
Nick Mathewson
8cc3307e0d Improve conn_*_to_string; add circuit_state_to_string; make skewed-descriptor messages better. 
svn:r4047
 2005-04-07 21:07:19 +00:00
Nick Mathewson
2a0b1025e5 Fix bug in last commit when no circid can be found 
svn:r4023
 2005-04-06 05:45:07 +00:00
Nick Mathewson
b7cdcf3462 Hopefully, this will make ORs much faster, and not break them: keep a big splay tree of (circid,orconn)->circuit mappings to make circuit_get_by_circid_conn much faster. 
svn:r4020
 2005-04-06 05:33:32 +00:00
Nick Mathewson
055ee7c323 Give better warnings if connection_close_unattached_ap gets called twice or called on a marked connection; rename it to connection_mark_unattached_ap. 
svn:r3990
 2005-04-02 22:11:24 +00:00
Nick Mathewson
0e81265359 update copyright notices. 
svn:r3982
 2005-04-01 20:15:56 +00:00
Roger Dingledine
1ff62dbd18 require exactly 0.0.9.7 for middle hops of testing circs, for now 
svn:r3967
 2005-04-01 09:23:51 +00:00
Roger Dingledine
e786e5dedb when building testing circuits, always use middle hops 
running at least 0.0.9.7


svn:r3966
 2005-04-01 08:42:26 +00:00
Roger Dingledine
2ff2db8d2a fix some log spacing problems 
svn:r3942
 2005-04-01 06:23:21 +00:00
Roger Dingledine
1f5c8335e8 still publish your descriptor if orport is reachable but dirport isn't 
when building testing circs for orport testing, require high-bandwidth
nodes, so fewer circs fail. complain about unreachable orport separately
from unreachable dirport.


svn:r3935
 2005-03-31 19:26:33 +00:00
Roger Dingledine
4f5192b280 ...and use it to make sure we only conclude reachability if 
we didn't initiate the conn.


svn:r3932
 2005-03-31 07:46:59 +00:00
Roger Dingledine
b8fe866a9d forward-port the fixing of the crash bug. 
svn:r3900
 2005-03-27 07:18:30 +00:00
Roger Dingledine
36baf7219d stop most cases of hanging up on a socks connection without sending 
the socks reject. audit for remaining ones. also make things more
uniform so we always remember to hold-open-until-flushed, etc.


svn:r3891
 2005-03-27 04:55:13 +00:00
Roger Dingledine
b8d38dc57b try harder to establish reachability, in the first 20 minutes 
of uptime.


svn:r3884
 2005-03-26 05:54:50 +00:00
Roger Dingledine
1328383482 make it clearer to the human that his server is testing 
its reachability. tell him when it succeeds, or when 20
minutes pass and it hasn't succeeded yet.


svn:r3882
 2005-03-26 01:43:39 +00:00
Nick Mathewson
631ab5c69b Add a magic value to cpath_layer_t to make sure that we can tell valid cpaths from freed ones. I audited this once; it could use another audit. 
svn:r3831
 2005-03-23 06:21:48 +00:00
Roger Dingledine
ad5f5ddf7e remove a duplicate circuit_mark_for_close() when picking 
a path for the circuit fails.


svn:r3822
 2005-03-22 23:20:33 +00:00
Roger Dingledine
f1ba4296c1 clean up and refactor some more 
svn:r3798
 2005-03-22 01:01:15 +00:00
Roger Dingledine
35953edae0 Implement controller's "extendcircuit" directive. 
Also refactor circuit building so we plan the whole path ahead
of time.


svn:r3797
 2005-03-22 00:42:38 +00:00
Roger Dingledine
4a497e5030 if our clock jumps forward by 100 seconds or more, assume something 
has gone wrong with our network and abandon all not-yet-used circs.


svn:r3792
 2005-03-19 23:58:42 +00:00
Roger Dingledine
856ab90ca8 stop logging at -l notice every single time a create cell successfully 
gets processed


svn:r3791
 2005-03-19 23:04:15 +00:00
Nick Mathewson
b88c4ba11c Turn addr_policy_compare from a tristate to a quadstate; this should help address our "Ah, you allow 1.2.3.4:80. You are a good choice for google.com" problem. 
svn:r3786
 2005-03-19 06:57:16 +00:00
Roger Dingledine
229761465c re-enable reachability testing stuff. 
also, consider your ORPort reachable after you've processed a
create cell from any non-local address.


svn:r3763
 2005-03-15 01:44:46 +00:00
Nick Mathewson
97dad670ea Renormalize whitespace 
svn:r3757
 2005-03-14 03:18:35 +00:00
Roger Dingledine
a1f1fa6ab2 Checkpoint in-progress fixes: 
Add 'testing' circuit purpose, for reachability testing.
Notice when our IP changes, and reset stats.
Try to pull down a directory via Tor to see if our DirPort is working.
Try to extend a circuit back to us to see if our ORPort is working.
Only publish a descriptor if they're both reachable.

These mostly work, and I'd better get them in before I cause conflicts.


svn:r3703
 2005-02-27 09:47:01 +00:00
Nick Mathewson
6e6d95b3db Change from inet_ntoa to a threadproof tor_inet_ntoa. 
svn:r3656
 2005-02-22 08:18:36 +00:00
Roger Dingledine
797419a62c remove unused code 
svn:r3629
 2005-02-16 02:06:54 +00:00
Roger Dingledine
2e97593d25 define TOR_FRAGILE if you want tor to give you a core when 
something goes wrong. this should only be used by people actively
tracking bugs.


svn:r3487
 2005-02-01 00:37:16 +00:00
Roger Dingledine
75d83827e0 fix another bug where general exit circs were looking at rendezvous 
streams. consolidate the looking into one function so it doesn't
happen again.


svn:r3372
 2005-01-19 17:59:37 +00:00
Roger Dingledine
ea24dc31bc remove some extra-verbose logs 
svn:r3361
 2005-01-17 18:49:13 +00:00
Roger Dingledine
d2400a5afd Introduce a notion of 'internal' circs, which are chosen without regard 
to the exit policy of the last hop. Intro and rendezvous circs must
be internal circs, to avoid leaking information. Resolve and connect
streams can use internal circs if they want.

New circuit pooling algorithm: make sure to have enough circs around
to satisfy any predicted ports, and also make sure to have 2 internal
circs around if we've required internal circs lately (with high uptime
if we've seen that lately).

Split NewCircuitPeriod config option into NewCircuitPeriod (30 secs),
which describes how often we retry making new circuits if current ones
are dirty, and MaxCircuitDirtiness (10 mins), which describes how long
we're willing to make use of an already-dirty circuit.

Once rendezvous circuits are established, keep using the same circuit as
long as you attach a new stream to it at least every 10 minutes. (So web
browsing doesn't require you to build new rend circs every 30 seconds.)

Cannibalize GENERAL circs to be C_REND, C_INTRO, S_INTRO, and S_REND
circ as necessary, if there are any completed ones lying around when
we try to launch one.

Re-instate the ifdef's to use version-0 style introduce cells, since
there was yet another bug in handling version-1 style. We'll try switching
over again after 0.0.9 is obsolete.

Bugfix: when choosing an exit node for a new non-internal circ, don't take
into account whether it'll be useful for any pending x.onion addresses --
it won't.

Bugfix: we weren't actually publishing the hidden service descriptor when
it became dirty. So we only published it every 20 minutes or so, which
means when you first start your Tor, the hidden service will seem broken.


svn:r3360
 2005-01-17 18:13:09 +00:00
Roger Dingledine
84c81e0783 Annotate circuits w/ whether they aim to contain high uptime nodes and/or 
high capacity nodes. When building circuits, choose appropriate nodes.

New config option LongLivedPorts to indicate application streams
that will want high uptime circuits.

When attaching a stream to a circuit, pay attention to its requirements.

This means that every single node in an intro rend circuit, not just
the last one, will have a minimum uptime.

Boost the min uptime from an hour to 24 hours.


svn:r3339
 2005-01-12 04:58:23 +00:00
Roger Dingledine
308ffa8a05 When listing circuits that are pending on an opening OR connection, 
if we're an OR we were listing circuits that *end* at us as
being pending on every listener, dns/cpu worker, etc. Stop that.


svn:r3171
 2004-12-17 23:17:00 +00:00
Roger Dingledine
011ad3cba5 clean up logging, 
make it clearer which warns are bugs,
make the control log event match its specification,
point out a bug in how we deal with failure when renewing the tls context.


svn:r3138
 2004-12-13 00:44:39 +00:00
Roger Dingledine
802d374a99 I'm a bad person. 
Stop treating the uint16_t's as null-terminated strings,
and stop looking at the byte after them to see if it's null,
because sometimes you're not allowed to look there.


svn:r3108
 2004-12-07 15:29:54 +00:00
Roger Dingledine
a2d80ec767 were we on crack?? 
svn:r3107
 2004-12-07 09:18:25 +00:00
Roger Dingledine
d9f86e2782 and bust another memory leak 
svn:r3105
 2004-12-07 08:58:26 +00:00
Nick Mathewson
a6aa5eebd6 Fix some memory leaks and unlikely segfaults 
svn:r3103
 2004-12-07 07:48:16 +00:00
Roger Dingledine
5ba3328172 fix a minor leak in my recent commit 
svn:r3081
 2004-12-05 12:35:00 +00:00
Roger Dingledine
ef6c9d18e7 New circuit building strategy: keep a list of ports that we've used in the past 6 hours, and always try to have 2 circuits open or on the way 
that will handle each such port. (We can extend this to include addresses
if exit policies shift to require that.) Seed us with port 80 so web
browsers won't complain that Tor is "slow to start up".

This was necessary because our old circuit building strategy just involved
counting circuits, and as time went by we would build up a big pile of
circuits that had peculiar exit policies (e.g. only exit to 9001-9100)
which would take up space in the circuit pile but never get used.

Fix router_compare_addr_to_addr_policy: it was not treating a port of *
as always matching, so we were picking reject *:* nodes as exit nodes too.

If you haven't used a clean circuit in an hour, throw it away, just to
be on the safe side.

This means after 6 hours a totally unused Tor client will have no
circuits open.


svn:r3078
 2004-12-05 07:10:08 +00:00
Roger Dingledine
c644886c38 bugfix: When we were checking to see if an ap_conn should time out 
waiting for its connected cell, we were calculating time from when the
ap_conn was created. So if it waited say 20 seconds before being attached,
then we would immediately decide that the circuit had timed out.

Also, make circuit_dump_by_conn() display actual circuit progress,
including circuits that haven't been attached to the conn yet but
hope to when it finishes connecting.


svn:r3072
 2004-12-04 02:51:11 +00:00
Roger Dingledine
8d69dc472b make circuit building and router parsing less noisy 
svn:r3068
 2004-12-04 00:25:54 +00:00
Roger Dingledine
3929f58018 clean obsolete circuit_log_path code 
svn:r3046
 2004-11-30 10:47:48 +00:00
Nick Mathewson
7fbd297532 Suggestion from weasel: Make tor --version --version dump the cvs Id of every file. 
svn:r3019
 2004-11-29 22:25:31 +00:00
Roger Dingledine
22727b4edc wrong is ok, and right is fine, but in between is apparently 
totally unacceptable to me.


svn:r3005
 2004-11-28 11:39:53 +00:00
Nick Mathewson
6f5dbefa7e Normalize space: add one between every control keyword and control clause. 
svn:r3003
 2004-11-28 09:05:49 +00:00
Roger Dingledine
7c9a707900 remove emacs droppings, since nick says he doesn't need them anymore 
svn:r2989
 2004-11-26 04:00:55 +00:00
Nick Mathewson
f5319a010d Dr. Seuss on iterating circular lists: "It's fun to have fun, but you 
have to know how."


svn:r2948
 2004-11-23 06:08:08 +00:00
Nick Mathewson
0a58bbe0dd Fix critical bug in circuit_list_path: cpath is a circular list! (Also reimplement circuit_log_cpath using circuit_list_cpath). 
svn:r2946
 2004-11-23 00:11:36 +00:00
Roger Dingledine
6a516dfdd3 be more greedy about filling up all relay cells. 
this may have some bugs in it still.
and it may end up not being what we want to do.


svn:r2928
 2004-11-21 07:43:12 +00:00
Nick Mathewson
647c076c8f add a TODO item and some comment changes. 
svn:r2904
 2004-11-16 03:32:01 +00:00
Nick Mathewson
60880cda84 Resolve a bunch of FIXME items; mark a lot more for attention; ask for clarification on some. Turn all XXXX008 ("showstopper for 0.0.8 release") items into XXXX009 or XXXX, since plainly they were not showstoppers for 0.0.8. Add/clean some docs. 
svn:r2808
 2004-11-12 16:39:03 +00:00
Nick Mathewson
5d92fbe30e Use autoconf to enable largefile support where necessary. Use ftello where available, since ftell can fail at 2GB. 
svn:r2806
 2004-11-12 05:05:41 +00:00
Nick Mathewson
e69d9647ed Remove XXXX009 comment telling us to do the last (circID-related) fix 
svn:r2798
 2004-11-10 20:19:45 +00:00
Nick Mathewson
954570486f Resolve a FIXME: use identity comparison, not nickname comparison, to 
choose circuit ID types.  This is important because our view of "the
nickname of the router on the other side of this connection" is
skewed, and depends on whether we think the other rotuer is
verified--and there's no way to know whether another router thinks you
are verified.

For backward compatibility, we notice when the other router chooses
the same circuit ID type as us (because it's running an old version),
and switch our type to be polite.


svn:r2797
 2004-11-10 20:14:37 +00:00
Nick Mathewson
fde4129ac3 Resolve FIXME items: clarify two XXXX comments for 009 
svn:r2791
 2004-11-10 14:27:26 +00:00
Roger Dingledine
394554cfbf Clean up copyrights. 
Break connection_consider_empty_buckets() out of
connection_read_bucket_decrement().


svn:r2698
 2004-11-07 01:33:06 +00:00
Roger Dingledine
6c61ed4fb5 Make options no longer a global variable. 
Now we can try setting an option but back out if it fails to parse, or
  if it's disallowed (e.g. changing RunAsDaemon from 1 to 0).
Use parse_line_from_str rather than parse_line_from_file.


svn:r2692
 2004-11-06 05:18:11 +00:00
Roger Dingledine
2ba3a9de16 make the default default options.FirewallPorts be the default 
svn:r2683
 2004-11-04 23:39:57 +00:00
Roger Dingledine
f7a30fa73e break out validate_options 
leave options.FirewallPorts NULL if it's NULL


svn:r2673
 2004-11-04 10:23:30 +00:00
Nick Mathewson
451f8b5045 - Implement all of control interface except authentication, setconfig, 
and actually making the sockets.
- Make sure that identity-based nicknames start with $.
- Use new string_join interface.


svn:r2661
 2004-11-03 18:33:07 +00:00
Roger Dingledine
e541319dcb lay the groundwork for a default value for each config option. 
tolerate null exitnodes, entrynodes, etc config options.


svn:r2655
 2004-11-03 10:08:44 +00:00
Roger Dingledine
51e16233cb Fix paul gardner's assert bug. Turns out when circuit_launch_by_nickname() 
failed at the first hop, it would try to relaunch another circ right
then, even though the first circuit hadn't been populated yet with its
pending_final_cpath.


svn:r2624
 2004-10-30 05:04:52 +00:00
Nick Mathewson
2fbf31533b Tricksy compiler warnings! We hates them, hates them forever, my precious! 
svn:r2615
 2004-10-27 21:14:11 +00:00
Nick Mathewson
44d4516155 Use tor_snprintf, not snprintf 
svn:r2609
 2004-10-27 06:37:34 +00:00
Nick Mathewson
bc62f8e983 Replace sprintf with snprintf 
svn:r2602
 2004-10-27 05:53:07 +00:00
Roger Dingledine
97a0a43511 start the process of making 0.0.7* obsolete 
svn:r2565
 2004-10-17 21:51:20 +00:00
Roger Dingledine
7c3ab346f6 various tweaks and fixes 
svn:r2548
 2004-10-16 22:56:46 +00:00
Roger Dingledine
de65052312 don't assert multiple things in the same tor_assert() 
svn:r2544
 2004-10-16 22:14:52 +00:00
Nick Mathewson
7fa5d224d4 Implement "families" of coadministered nodes; prevent them all from appearing on the same circuit. 
svn:r2523
 2004-10-15 01:58:11 +00:00
Nick Mathewson
bd10bf4b5b Try to always dtrt if routerlist==NULL 
svn:r2489
 2004-10-14 03:44:45 +00:00
Roger Dingledine
aebc3a03ba more int to size_t conversions, fixing one or more amd64 bugs 
plus a whitespace patch on config.c from vicman


svn:r2482
 2004-10-14 02:47:09 +00:00
Roger Dingledine
7798e3d770 fix the stale pointer assert bug reported by joe magic 
svn:r2436
 2004-10-11 01:17:42 +00:00
Roger Dingledine
eff780c815 Fix a rare assert trigger, where routerinfos for entries in our cpath 
would expire while we're building the path.
Thanks to Eugene Armstead for pointing it out.


svn:r2402
 2004-09-30 15:40:05 +00:00
Roger Dingledine
959199340a don't pick administrative-friends when picking your path 
(just a skeleton for now)


svn:r2349
 2004-09-10 21:40:29 +00:00
Roger Dingledine
79df0aa18a when picking unverified routers, skip those with bad uptime or 
bad bandwidth, depending on what properties you care about


svn:r2302
 2004-08-20 21:34:36 +00:00
Roger Dingledine
2396c6bf71 remove last vestiges of this 'twin' concept 
svn:r2291
 2004-08-18 20:35:11 +00:00
Roger Dingledine
b500104cbe tolerate old 0.0.7 clients that demand a certain ip:port for a router 
even though it's moved on to another one.

also reduce some log verbosity.


svn:r2288
 2004-08-18 11:20:15 +00:00
Roger Dingledine
3937ecfaae when we try to exclude our routerinfo from being picked in the 
path, it fails because we're using a pointer to the routerinfo we
generate, not a pointer to the routerinfo in the routerlist. so look
up the right one and use that.


svn:r2286
 2004-08-18 10:32:50 +00:00
Roger Dingledine
b885db033e remove crazy notion that clique_mode() means we are 
already connected to everybody we could be connected to.


svn:r2283
 2004-08-18 09:07:11 +00:00
Roger Dingledine
765530421e be more aggressive about trying to make circuits: 
try once a second for 30 seconds, and only when the entire previous
period has failed do we pause after MAX_CIRCUIT_FAILURES failures.


svn:r2281
 2004-08-18 08:51:04 +00:00
Roger Dingledine
b294a037a4 choose exit nodes by bandwidth too 
svn:r2274
 2004-08-18 06:10:12 +00:00
Roger Dingledine
2c002b1533 deal better if we don't have enough available nodes to choose a path 
svn:r2262
 2004-08-17 12:09:37 +00:00
Roger Dingledine
2d8a1f208a if they ask for exactly one entrynode, don't pick it as an exitnode. 
also, fix part of the zero-identity-router-in-stats bug


svn:r2252
 2004-08-17 07:09:02 +00:00
Roger Dingledine
ee23b7a470 use unverified routers in the desired positions 
svn:r2249
 2004-08-17 06:27:32 +00:00
Nick Mathewson
0b91fd1cbe Add a generic Comma-separated-value config type, and a FirewallPorts option to tell FascistFirewall which ports are open. (Defaults to 80,443) 
svn:r2244
 2004-08-16 20:47:00 +00:00
Nick Mathewson
416653271a Implement strict{entry|exit}nodes config options 
svn:r2236
 2004-08-15 20:14:44 +00:00
Roger Dingledine
cd3da3fc12 o clients choose nodes proportional to advertised bandwidth 
o and/or while avoiding unreliable nodes, depending on goals
o 'fascistfirewall' option to pick dirservers on port 80 and ORs on
  port 443.
o if a begin failed due to exit policy, but we believe the IP should                       have been allowed, switch that router to exitpolicy reject *:* until                     we get our next directory.


svn:r2231
 2004-08-15 08:15:12 +00:00
Roger Dingledine
b2c7b5adfb fix a race condition in 008pre2: don't try to extend onto a connection 
that's still handshaking.

for servers in clique mode, require the conn to be open before you'll
choose it for your path.


svn:r2198
 2004-08-08 10:32:36 +00:00
Roger Dingledine
05790d1722 let children survive sigint, sigterm, etc. 
this was biting us because ^c would get delivered to all of them,
maybe because they were all still listening to stdin?


svn:r2197
 2004-08-08 07:25:45 +00:00
Roger Dingledine
b51a444dd2 commit some odds and ends, so my tree is clean 
svn:r2137
 2004-08-04 05:10:49 +00:00
Roger Dingledine
eb0a19c475 change 0.0.8 extend cell format so it's compatible with 0.0.7 
svn:r2094
 2004-07-22 03:47:20 +00:00
Roger Dingledine
fd0fcc89e9 disallow picking unverified routers in circuits 
(for now)


svn:r2082
 2004-07-21 09:35:24 +00:00
Roger Dingledine
ddb6eb35af we were counting incorrectly when trying to figure out whether 
a given AP stream was being handled or not.
(how did this work?)


svn:r2077
 2004-07-21 03:16:24 +00:00
Roger Dingledine
e547ab293b make connection_tls_finish_handshake() more plausible. 
now we accept connections from unknown routers.


svn:r2074
 2004-07-21 02:25:14 +00:00
Nick Mathewson
334de84cbe Misc small code cleanups; remove exit_server_mode(); change tor_tls_verify behavior 
svn:r2073
 2004-07-21 00:44:04 +00:00
Nick Mathewson
54c129d8dc abstract ORPort/SocksPort checks into server_mode(), proxy_mode(), clique_mode(), etc. Dont change underlying comments. 
svn:r2054
 2004-07-18 21:47:04 +00:00
Nick Mathewson
c2103eb63a Finish most pre2 items: make running-routers list work right; rename secret key files; make even more lookup-by-nickname use lookup-by-id; default nicknames to hostname. 
svn:r2043
 2004-07-13 18:23:40 +00:00
Roger Dingledine
017d7d1fb3 refuse to build a circuit before the directory has arrived 
this will prevent a few of the 'couldn't decrypt onionskin' errors, maybe


svn:r2036
 2004-07-13 01:25:39 +00:00
Roger Dingledine
149115cc4e bugfix: tell circuits what id_digest to look for, so 
n_conn_open() can find waiting circuits.


svn:r2034
 2004-07-12 23:53:16 +00:00
Roger Dingledine
dc0a36d27b populate circ->n_conn_id_digest when we set circ->n_conn 
svn:r2001
 2004-07-03 01:37:59 +00:00
Nick Mathewson
7d8de8cd10 More digest/nickname fixes 
svn:r2000
 2004-07-02 23:40:03 +00:00
Roger Dingledine
d58d4c0db6 another checkpoint toward letting ORs connect on demand 
svn:r1999
 2004-07-02 23:08:59 +00:00
Roger Dingledine
62dcf9e20f some of the infrastructure to let ORs connect on demand 
svn:r1998
 2004-07-02 09:29:01 +00:00
Nick Mathewson
cbab134bd9 Switch most uses of *_by_addr_port to *_by_identity_digest 
svn:r1997
 2004-07-01 23:13:04 +00:00
Nick Mathewson
541add90a1 Track routers by hash of identity key; use hex hash of identity key in place of nickname; accept (and use) hash of identity key in EXTEND cells. 
svn:r1994
 2004-07-01 01:16:59 +00:00
Roger Dingledine
1c21a02b90 router_choose_random_node() was ignoring its routerlist argument. 
so now we don't pass it one.


svn:r1911
 2004-05-20 19:12:28 +00:00
Roger Dingledine
ef561c0e42 Break files apart into more modules 
* \file circuitbuild.c
 * \brief The actual details of building circuits.

 * \file circuitlist.c
 * \brief Manage the global circuit list.

 * \file circuituse.c
 * \brief Launch the right sort of circuits, attach streams to them.

 * \file connection_edge.c
 * \brief Handle edge streams.

 * \file onion.c
 * \brief Functions to queue create cells, and handle onionskin
 * parsing and creation.

 * \file relay.c
 * \brief Handle relay cell encryption/decryption, plus packaging and
 * receiving from circuits.


svn:r1863
 2004-05-13 07:24:49 +00:00