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398 Commits

Author SHA1 Message Date
Roger Dingledine
3d79eb52ab stick to nick's nul/null convention 
svn:r6763
 2006-07-15 19:21:30 +00:00
Nick Mathewson
a0cf95e1c9 Add some debugging asserts to dns.c; these are too expensive to leave in permanently. 
svn:r6756
 2006-07-11 20:51:58 +00:00
Nick Mathewson
39344fc301 Add a const; fix a (probably harmless) bug when storing a resolve we forgot we asked for. 
svn:r6751
 2006-07-10 18:38:57 +00:00
Nick Mathewson
a40ad152b1 When using eventdns: suppress logging of addresses when SafeLogging is active, and make set of nameservers configurable from torrc. 
svn:r6744
 2006-07-07 17:33:30 +00:00
Nick Mathewson
3c4205c872 Clean up eventdns messages. 
svn:r6730
 2006-07-05 21:42:18 +00:00
Nick Mathewson
42ef3bd90c Add plausile logging support to eventdns; stop putting stuff onto stdout. 
svn:r6728
 2006-07-05 21:28:37 +00:00
Roger Dingledine
af0e47c921 fix spacing 
svn:r6628
 2006-06-15 22:59:07 +00:00
Roger Dingledine
87e3800dfc Finally solve the "closing wedged cpuworkers" bug. Woo. 
This happened when we got two create cells in a row from the same TLS
connection. It would hand one to the cpuworker, and then immediately
handle the second one -- after it had registered that the first one was
busy, but before it had updated the timestamp that we use to decide how
*long* it's been busy.


svn:r6606
 2006-06-12 11:59:19 +00:00
Roger Dingledine
5c57348acd We got an obscure report of an assert error on a windows Tor server with 
connection_add being called with socket = -1. The only places I can see
where that happen would be if our tor_socketpair succeeds but it hands
back negative values for some of its file descriptors. Perhaps this will
produce more useful assert errors next time.


svn:r6550
 2006-06-06 00:06:52 +00:00
Nick Mathewson
2bd7c19b73 Try to log useful messages at info and debug about what we are resolving and what answers we are getting wrt eventdns. 
svn:r6547
 2006-06-05 23:01:22 +00:00
Nick Mathewson
3db785ef73 Hm. Where did we put that ntohl the last time we were juggling it? (hoop-lah). 
svn:r6534
 2006-06-05 00:32:31 +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
Nick Mathewson
c660a0f6a2 More DNS fixes. Send meaningful TTLs back to the client when 
possible.  Cache at the server side independently from the TTL, to
prevent attackers from probing the server to see who has been asking
for what hostnames.  (Hi, Dan Kaminski!)

Also, clean some whitespace.


svn:r6526
 2006-06-03 21:41:14 +00:00
Nick Mathewson
85a25c8a29 Make dns.c use eventdns.c -- but only when you pass the --enable-eventdns argument to configure.in. This will *so* not work on Windows yet. 
svn:r6525
 2006-06-03 20:52:24 +00:00
Roger Dingledine
6b058bd563 add a few more debugging lines to help mikec track down his 
11 minute jump into the future.


svn:r6465
 2006-05-23 03:08:30 +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
d1d0813cf3 Allow non-printable characters for exit streams (both for 
connecting and for resolving). Now we tolerate applications
that don't follow the RFCs. But continue to block malformed
names at the socks side.


svn:r6193
 2006-03-19 03:55:48 +00:00
Roger Dingledine
aa63a84fe1 the things we do for our windows users. 
i hope they appreciate it.


svn:r6004
 2006-02-13 09:37:53 +00:00
Roger Dingledine
5f051574d5 Happy new year! 
svn:r5949
 2006-02-09 05:46:49 +00:00
Roger Dingledine
b038dc9ecc disambiguate some debug entries 
svn:r5654
 2005-12-26 22:42:22 +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
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
77a494dd55 Expunge remaining places where we used "tree" to mean "associative array". 
svn:r5490
 2005-12-03 02:21:31 +00:00
Nick Mathewson
502cb59611 Remove "tree" references from dns. 
svn:r5488
 2005-12-03 02:01:18 +00:00
Nick Mathewson
a39269572f Replace balanced trees with hash tables: this should make stuff significantly faster. 
svn:r5441
 2005-11-23 04:18:45 +00:00
Nick Mathewson
9492424d3f Per comments at the bottom of openssl/FAQ, call even more functions to 
clean up OpenSSL's toys when it's done playing.  (Why isn't there an
OpenSSL_free_everything() function?)


svn:r5321
 2005-10-25 19:01:48 +00:00
Nick Mathewson
5d85560d9e Remove last vestiges of old logging interface. 
svn:r5317
 2005-10-25 18:01:01 +00:00
Nick Mathewson
049f6c0131 Switch remaining files to new log interface. 
svn:r5315
 2005-10-25 17:52:14 +00:00
Nick Mathewson
92451f74a8 Reformat inconsistent function declarations. 
svn:r5160
 2005-09-30 01:09:52 +00:00
Roger Dingledine
512d6ccdc1 and a minor log cleanup 
svn:r5115
 2005-09-23 00:04:53 +00:00
Roger Dingledine
d050ff7906 resolve lucky's recent bug: tor was exiting if we failed to spawn 
a new dns worker (e.g. because we were out of fd's).


svn:r5112
 2005-09-22 23:43:41 +00:00
Roger Dingledine
843550721a stop notifying people about dns worker spawning and culling 
it just freaks them out


svn:r4960
 2005-09-09 02:03:31 +00:00
Nick Mathewson
a6a45b7713 Add TTLs to RESOLVED, CONNECTED, and END_REASON_EXITPOLICY cells. Also, add a missing ntohl in connection_ap_handshake_socks_resolved. 
svn:r4894
 2005-09-02 18:53:31 +00:00
Roger Dingledine
04d42ea433 rotate dns and cpu workers if the controller changes options that 
will affect them.


svn:r4787
 2005-08-15 23:46:18 +00:00
Roger Dingledine
10ff723938 initialize the dns worker cache tree whether or not we start 
out as a server.


svn:r4785
 2005-08-15 10:27:37 +00:00
Roger Dingledine
87fcd60aa2 predict required circuits better, with an eye toward making 
hidden services faster on the service end.


svn:r4772
 2005-08-13 00:22:07 +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
d85bfe83bf Make errors retrievable from tor_socketpair; resolve bug 163. 
svn:r4509
 2005-06-30 07:17:38 +00:00
Roger Dingledine
caf7af26d7 whitespace fix 
svn:r4500
 2005-06-28 01:53:15 +00:00
Roger Dingledine
00a7a37c94 we were printing the number of idle dns workers incorrectly. 
svn:r4477
 2005-06-23 07:57:43 +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
Roger Dingledine
fcd0fc3364 flesh out the source file descriptions for doxygen 
svn:r4404
 2005-06-11 05:31:17 +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
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
68ba303323 fix compile error if you're not multithreaded 
svn:r4177
 2005-05-03 18:44:20 +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
b35f7dacef Call tor_free_all instead of connections_free_all after forking 
svn:r4173
 2005-05-03 03:51:20 +00:00
Roger Dingledine
4eb3cf9330 a bit more debug info 
svn:r4119
 2005-04-26 20:05:15 +00:00
Roger Dingledine
953cf91ecd add more debugging info to help us find the weird dns freebsd pthreads bug. 
svn:r4117
 2005-04-26 19:08:06 +00:00
Roger Dingledine
509405a5f7 clean up this TOR_FRAGILE business 
svn:r4116
 2005-04-26 18:52:16 +00:00
Roger Dingledine
03720b39fd stop wasting time doing a case insensitive comparison for every dns name 
every time we do any lookup. canonicalize the names to lowercase and be
done with it.


svn:r4035
 2005-04-06 20:25:21 +00:00
Nick Mathewson
88dc243bb5 Rename circuit_get_by_stream to circuit_get_by_edge_conn, and actually start using it. Watch out, kids! 
svn:r4026
 2005-04-06 06:43:21 +00:00
Nick Mathewson
4453e3794a Add a pointer from edge connections to their corresponding circuit (ulp!); add some debugging sanity-checking for cirid_orconn_map stuff 
svn:r4024
 2005-04-06 06:13:49 +00:00
Nick Mathewson
b34d9adb59 Fix format warning 
svn:r4022
 2005-04-06 05:44:05 +00:00
Roger Dingledine
712d05c19a a bit more data on gene's dns threading bug 
svn:r4019
 2005-04-06 05:32:24 +00:00
Nick Mathewson
46be0fa999 Make last fix work on windows too. 
svn:r4009
 2005-04-04 21:53:26 +00:00
Nick Mathewson
0fff263a46 Fix possible bug on threading platforms with running out of fds do to cpuworkers and dnsworkers. 
svn:r4008
 2005-04-04 21:46:08 +00:00
Nick Mathewson
0e81265359 update copyright notices. 
svn:r3982
 2005-04-01 20:15:56 +00:00
Roger Dingledine
316afb6d09 fix an assert trigger in cvs: if a resolve request fails, and the circuit 
has vanished in the meantime, then we would both mark it for close
(i.e. put it on the closeable list) and also immediately free it.


svn:r3759
 2005-03-14 04:42:52 +00:00
Nick Mathewson
97dad670ea Renormalize whitespace 
svn:r3757
 2005-03-14 03:18:35 +00:00
Nick Mathewson
afe414f070 Revise all calls to connection_edge_end to avoid sending MISC, and to take errno into account where possible. 
svn:r3720
 2005-03-01 22:42:31 +00:00
Nick Mathewson
f672577bc6 Free even more things on shutdown. Temporarily move tor_free_all out from #ifdef so it gets tested more. 
svn:r3614
 2005-02-11 01:26:47 +00:00
Nick Mathewson
322c728e97 Fix tor-resolve implementation to prevent crashes and send resolves when we should. 
svn:r3561
 2005-02-05 21:03:24 +00:00
Roger Dingledine
56d4b99491 forward-port the logic skew and double-free thing 
svn:r3549
 2005-02-04 01:49:58 +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
b2fbd834f0 forward-port the dns and maxconn fixes 
svn:r3448
 2005-01-28 08:53:47 +00:00
Nick Mathewson
e0bf597665 Give more useful log messages when the tor process closes dns/cpuworker connections. "Error: Success!" makes us seem like crazy people." 
svn:r3373
 2005-01-19 21:34:42 +00:00
Roger Dingledine
814dd946f0 fix duplicate dns_cancel_pending_resolve reported by Giorgos Pallas 
svn:r3293
 2005-01-04 11:26:08 +00:00
Roger Dingledine
ba7c74e742 bandaid: make Giorgos Pallas's dns assert bug not actually crash on him. 
one day we should try to figure out what's actually going on here.


svn:r3280
 2005-01-04 06:21:06 +00:00
Nick Mathewson
b50263f740 More work on task #43: fix race conditions on multithreaded (win32) servers. 
svn:r3251
 2005-01-03 19:07:25 +00:00
Nick Mathewson
ead52e0bdc Possible fix for task #43: when running on a multithreaded environment (currently only windows), threads should not close opposite sides of their socketpairs, and workers should not call connection_free_all(). This may fix win32 servers. 
svn:r3247
 2005-01-03 18:06:51 +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
Nick Mathewson
08e3090aff More win32 fixes: 1) tolerate extra "readable" events better. 2) when being multithreaded, leave parent fdarray open. 
svn:r3092
 2004-12-06 23:19:55 +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
Roger Dingledine
310a8da0d2 break reached_eof() out of process_inbuf() 
svn:r2930
 2004-11-21 10:14:57 +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
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
Nick Mathewson
6874c39904 Fix windows build 
svn:r2613
 2004-10-27 18:14:38 +00:00
Nick Mathewson
6980929e64 Use strlcpy, not strcpy. 
svn:r2610
 2004-10-27 06:48:16 +00:00
Nick Mathewson
f67f83b1fa Use strlcpy, not strncpy 
svn:r2603
 2004-10-27 06:03:28 +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
a42adce362 fix memory leak in router.c; start relying on NULL==(zero bytes) 
svn:r2538
 2004-10-16 20:38:57 +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
013104a1e2 people are starting to bump into the limit of 50 dns workers. 
raise it to 100 for now. we need a better solution long-term.
but alas, there are no better solutions that are also portable.
hm.


svn:r2363
 2004-09-22 03:56:41 +00:00
Nick Mathewson
9defe8a307 Attach dummy resolve connections to a circuit *before* calling dns_resolve(). This fixes a bug where cached answers would never be sent in RESOLVED cells. 
svn:r2360
 2004-09-21 18:12:12 +00:00
Roger Dingledine
d977677aa8 bugfix: when a resolve fails for a begin request, actually send 
the end cell back. also, give a better reason for failure.


svn:r2358
 2004-09-21 17:33:05 +00:00
Nick Mathewson
0dcc8c7048 Bugfix: When a dns request failed, we would detach any "resolving" streams from the circuit before we would send a the resolve_failed cells. 
svn:r2355
 2004-09-21 16:42:07 +00:00
Roger Dingledine
be7909f670 Fix a symptom for a bug that straycat found. 
Apparently in rare cases poll() is returning POLLIN for an idle
dns worker. It reads no bytes, presumably because the idle dns
worker didn't write anything in the first place. Gosh, who knows.

Now we only trigger the assert if the idle dns worker actually
tries to send an answer to us.


svn:r2311
 2004-08-25 05:26:09 +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
3b00c950c2 note a bug in our dns error handling. we should fix this sometime. 
svn:r2149
 2004-08-05 19:33:54 +00:00
Roger Dingledine
aebec8ab9e stop using atexit() to remove our pid, since it's called 
immediately when we daemonize.

also drop our retry period for hidserv desc uploads from 10m to 5m


svn:r2111
 2004-07-22 22:15:36 +00:00
Nick Mathewson
d5e275ddf4 Fix bug reported by peter palfrader: an empty address is unresolvable, but not an occasion for an assertion failure in a dnsworker. 
svn:r2015
 2004-07-06 23:25:21 +00:00
Nick Mathewson
0f3fcfd1db When tor_lookup_hostname says 0.0.0.0, treat it as an error. 
svn:r2003
 2004-07-04 04:52:43 +00:00
Nick Mathewson
3708886939 Implement RESOLVE/RESOLVED cells and socks resolve code 
svn:r1978
 2004-06-17 18:13:09 +00:00
Nick Mathewson
184f4e6044 Rotate dnsworkers and cpuworkers on SIGHUP, so they get new config settings too 
svn:r1950
 2004-06-06 03:38:31 +00:00
Roger Dingledine
69931106f8 be sure to detach streams from the circuit linked list before freeing them 
also, don't bother marking a conn for close if you're about to free it


svn:r1935
 2004-06-02 18:32:24 +00:00
Nick Mathewson
0932505829 Only connection_dns_remove resolving exit connections 
svn:r1934
 2004-06-02 18:12:49 +00:00
Nick Mathewson
0d20fee2fb Add more asserts to dns-pending connections; fix a couple seeming bugs. 
svn:r1931
 2004-06-01 22:09:58 +00:00
Roger Dingledine
f51061439b when the dns resolve is cancelled, or fails, be sure to remove 
conn from circ->resolving_streams

otherwise it gets freed and stays there, causing seg faults.


svn:r1915
 2004-05-21 12:25:15 +00:00
Roger Dingledine
b37450ce55 do all the heavy lifting in connection_about_to_close_connection, 
not in _connection_mark_for_close

this will hopefully clean up the huge cyclical function mess


svn:r1903
 2004-05-19 23:32:20 +00:00
Roger Dingledine
1cf1836990 break connection_edge_end out of connection_mark_for_close 
svn:r1858
 2004-05-12 21:12:33 +00:00
Nick Mathewson
537fb82cbb Make some functions static 
svn:r1857
 2004-05-12 20:58:27 +00:00
Roger Dingledine
3cdf2d67da it's amazing what a bit of punctuation can do for appearances 
svn:r1843
 2004-05-10 10:27:54 +00:00
Roger Dingledine
6168b3222e a few more pieces of markup 
svn:r1841
 2004-05-10 08:56:42 +00:00
Roger Dingledine
341d6f2cab more cleanup, including fleshing out or.h more 
svn:r1839
 2004-05-10 07:37:10 +00:00
Nick Mathewson
81922a125c More doxygenation. 
svn:r1832
 2004-05-10 04:34:48 +00:00
Roger Dingledine
c6d4a00c5f more doxygen markup 
plenty more remains


svn:r1824
 2004-05-09 16:47:25 +00:00
Roger Dingledine
9bf9ca4d09 bugfix: add a circ->resolving_streams field, and make dns resolving streams not actually in the connection_array until they're done resolving. 
bugfix: actually complain if we duplicate mark-for-close a circuit

add more logging for relay ends that claim dns resolve failed, so we can
find out why they're not being retried.


svn:r1798
 2004-05-06 11:08:04 +00:00
Nick Mathewson
682a805092 Comments for nearly all non-tricky files 
svn:r1796
 2004-05-05 21:32:43 +00:00
Nick Mathewson
af08c4f878 Working strerror for windows socket errors, plus some snide comments. 
svn:r1775
 2004-05-02 20:18:21 +00:00
Nick Mathewson
9322641710 Use socketclose on windows as appropriate; end pid files with newline 
svn:r1745
 2004-04-28 21:14:56 +00:00
Roger Dingledine
ca8d50abeb bug resolved (hopefully), so remove comment 
svn:r1738
 2004-04-28 20:12:44 +00:00
Roger Dingledine
22c0cd8a14 clean dns.c better 
svn:r1737
 2004-04-28 20:11:37 +00:00
Roger Dingledine
25d5425fdb fix a bug in dns.c, note but don't fix another one 
svn:r1735
 2004-04-28 19:55:20 +00:00
Nick Mathewson
ac622d94dc Workarounds for a couple of pieces of windows strangeness. 
svn:r1734
 2004-04-28 19:35:12 +00:00
Roger Dingledine
25d54257fb use tor_assert 
remove obsolete BUF_OK macro


svn:r1697
 2004-04-25 20:37:37 +00:00
Nick Mathewson
c024745bd4 Cosmetic patch for arma's fix for The Bug: Don't set the state to 
RESOLVEFAILED if the resolve didn't fail; set it to CONNECTING
instead.


svn:r1590
 2004-04-11 17:07:45 +00:00
Roger Dingledine
d8c954e156 continue beating at pieces of The Bug 
svn:r1588
 2004-04-09 21:31:09 +00:00
Roger Dingledine
23c193c065 if dns resolve is valid, but our exit policy rejects it or 
the connect attempt fails immediately, we were trying to
double-remove it from the dns pending list.

i think this might have been The Bug.
(thanks weasel!)


svn:r1587
 2004-04-09 21:06:14 +00:00
Roger Dingledine
4011906b6b get more serious about hunting The Bug 
(it has been haunting us since the days of 0.0.2preX)


svn:r1576
 2004-04-09 09:39:42 +00:00
Nick Mathewson
3d60cd1d61 Delete trailing whitespace and expand tabs; remove unused aes decrypt code 
svn:r1522
 2004-04-07 19:57:40 +00:00
Roger Dingledine
7118c6177d clean up a few more bugs 
svn:r1365
 2004-03-29 19:57:50 +00:00
Roger Dingledine
0edf0ea7cc make normal exit nodes less likely to crash from the conn-munging bug 
but leave dirservers just as likely to crash


svn:r1363
 2004-03-29 19:51:39 +00:00
Roger Dingledine
4a5586b8e3 make dns resolves a lot faster 
(but only enable this once we've found the bug)


svn:r1358
 2004-03-28 21:16:52 +00:00
Roger Dingledine
f241fdfc73 there is yet another dns-pending-conn-clobbering bug 
somewhere


svn:r1354
 2004-03-28 04:54:36 +00:00
Roger Dingledine
66f878513f deal with hardware word alignment 
this was causing the seg faults on sparc processors

i wonder if i got them all.


svn:r1314
 2004-03-20 09:30:30 +00:00
Roger Dingledine
1ae45b771e don't close all the fd's when you spawn a thread, only when you fork 
svn:r1267
 2004-03-12 21:52:15 +00:00
Roger Dingledine
965a73dc71 bugfix: we were caching transient dns failures 
svn:r1266
 2004-03-12 18:45:42 +00:00
Nick Mathewson
976bacae94 Make all the other read/writes into recv/sends, except when they shouldn't be. 
svn:r1260
 2004-03-11 06:35:03 +00:00
Roger Dingledine
6c9d78b319 stop asserting that computers always go forward in time 
it's simply not true


svn:r1236
 2004-03-06 01:43:37 +00:00
Roger Dingledine
01e06148a1 make workers explain their death better when tor dies 
and make them say it at log level info rather than err


svn:r1232
 2004-03-04 21:26:23 +00:00
Roger Dingledine
8fe504fee6 bugfix: don't pass complex things to the connection_mark_for_close macro 
svn:r1231
 2004-03-04 20:49:38 +00:00
Nick Mathewson
c03e9206ae Clean up dns->connection_mark_for_close->dns_remove path 
svn:r1230
 2004-03-04 18:43:44 +00:00
Roger Dingledine
5701cc2359 fix the function comment 
svn:r1169
 2004-02-28 22:34:47 +00:00
Nick Mathewson
0a673f4491 Split dns_cancel_pending_resolve into dns_cancel_pending_resolve (kill a 
resolve in response to a DNS worker dying) and connection_dns_remove (remove
a pending connection from the resolve structure.)


svn:r1168
 2004-02-28 22:23:44 +00:00
Roger Dingledine
9a55700747 add a log_warn to notify us of yet another potential dns.c bug 
svn:r1167
 2004-02-28 22:13:58 +00:00
Nick Mathewson
833d14246d Make dns_cancel_pending_resolve less agressive. 
svn:r1166
 2004-02-28 22:06:59 +00:00
Nick Mathewson
55174d1cb0 Fix bug on dns_found_answer from mark_to_close stuff. 
svn:r1165
 2004-02-28 21:52:58 +00:00
Roger Dingledine
fadfd26188 remove assert from dns.c that's no longer true: 
typically the resolve will be pending, but it could be failed if it
just failed and we're working through the 'pending' list, or it could
be valid if some other dnsworker raced us to fill in the entry.


svn:r1164
 2004-02-28 21:49:10 +00:00
Nick Mathewson
4e89c6661a Push responsibility for connection marking down as far as possible; have only a close path; add some missing end cells; change return conventions a little. 
svn:r1149
 2004-02-28 04:11:53 +00:00
Nick Mathewson
c5bbb571d2 Refactor mark_for_close, connection_edge_end and friends. Now, everybody 
who wants to shut down a connection calls connection_mark_for_close instead
of setting marked_for_close to 1.  This automatically removes the connection
from the DNS cache if needed, sends a RELAY END cell if appropriate, and can
be changed to do whatever else is needed.

Still to do:
  - The same for circuits, maybe.
  - Add some kind of hold_connection_open_until_flushed flag, maybe.
  - Change stuff that closes connections with return -1 to use mark_for_close,
    maybe.


svn:r1145
 2004-02-27 22:00:26 +00:00
Nick Mathewson
496e414e52 Basic RAM poisoning and magic-checking to notice connection and circuit 
corruption faster; also, check for corruption in dns.c so we can fail fast
for the bug that's nailing Lucky and moria3.


svn:r1123
 2004-02-25 07:31:46 +00:00
Roger Dingledine
8da2e00a83 remove dead code 
svn:r1121
 2004-02-25 06:56:11 +00:00
Roger Dingledine
7985f525ec fix some bugs in assert_connection_ok 
svn:r1118
 2004-02-24 22:33:30 +00:00
Roger Dingledine
598f8b5661 start hunting the lucky-bug 
svn:r1116
 2004-02-22 20:50:20 +00:00
Roger Dingledine
5086300815 split the token bucket into 'rate' and 'burst' params 
we're not entirely migrated to burst yet, for backward compatibility

note some win32 probable-bugs

clean up routerlist.c


svn:r982
 2004-01-10 23:40:38 +00:00
Roger Dingledine
c485725c5a Fix the dns bug: children weren't dying 
We were telling a child to die by closing the parent's file descriptor
to him. But newer children were inheriting the open file descriptor from
the parent, and since they weren't closing them, the socket never closed,
so the child never read eof, so he never knew to exit.

As a side effect to this bug, we were probably failing to properly close
connections to remote hosts, ORs, and OPs, after a dns child was born.

I'm surprised Tor worked at all.


svn:r974
 2004-01-06 07:53:40 +00:00
Roger Dingledine
4a1e05de51 betcha didn't know strncpy could leave an unterminated string 
svn:r949
 2003-12-17 09:20:29 +00:00
Nick Mathewson
4885e90490 Make compile warning-free on cygwin 
svn:r936
 2003-12-15 21:35:52 +00:00
Roger Dingledine
08534a6271 start tracking the 'It appears I've already sent the end' warning 
svn:r932
 2003-12-14 08:32:14 +00:00
Roger Dingledine
7d58bfbd50 change dns notation from question/answer to address/addr 
svn:r929
 2003-12-14 07:40:47 +00:00
Roger Dingledine
05c05d6444 more friendly warning when there are too many dns workers 
svn:r919
 2003-12-14 04:19:12 +00:00
Roger Dingledine
29adf04683 more general cleanup 
svn:r915
 2003-12-14 00:12:02 +00:00
Roger Dingledine
ac56486bf6 use the tor_malloc_zero wrapper 
svn:r837
 2003-11-18 08:20:19 +00:00
Roger Dingledine
56cd147eb9 let getconfig survive repeated calls. now we call it again when we hup. 
change RecommendedVersions into a config option, so dirservers can hup
  for a new one


svn:r809
 2003-11-13 06:49:25 +00:00
Roger Dingledine
aac29076da warn on startup that we don't provide anonymity 
make exit dns cache entries last 15 minutes


svn:r807
 2003-11-13 04:51:34 +00:00
Nick Mathewson
3dddcf4306 Add lots of logging to dns.c; change behavior of often-failing assertion 
svn:r778
 2003-11-08 04:02:05 +00:00
Roger Dingledine
c6b442a346 make end relay cells have payloads 
move default exit policy into config files


svn:r653
 2003-10-22 07:55:44 +00:00
Roger Dingledine
4a66865d0b send the end cell when we realize we're going to end, 
not when we're closing the stream.

this lets us put a payload in the end cell if we want to,
to describe why we're closing the stream.

there are still some places where we don't send the end cell
immediately. i need to track them down. but it's a low priority,
since i've made it send the end cell when we close the stream if
we haven't already sent it.


svn:r640
 2003-10-21 08:37:07 +00:00
Roger Dingledine
9d3f2b232b another minor memory leak 
make dnsconn->address reflect what it's currently resolving


svn:r624
 2003-10-18 07:09:09 +00:00
Nick Mathewson
959b5585a5 Stop using stdout for non-debugging cases 
svn:r592
 2003-10-15 18:28:32 +00:00
Roger Dingledine
b9628f266f change WARNING to WARN 
and fix a few typos


svn:r571
 2003-10-10 01:48:32 +00:00
Roger Dingledine
be874358a4 wrap strdup; prefer time() to gettimeofday() 
svn:r538
 2003-10-04 03:29:09 +00:00
Roger Dingledine
f563bbd2f9 refactor so connection_write_to_buf() never fails 
svn:r537
 2003-10-04 02:38:18 +00:00
Roger Dingledine
cb8212bfcb clean up receiver buckets; prepare for payloads in relay_end; note a few bugs 
svn:r502
 2003-09-27 21:09:56 +00:00
Roger Dingledine
deac704399 connection_new() can't ever fail 
svn:r497
 2003-09-27 07:28:44 +00:00
Roger Dingledine
9e5cafc395 first pass: obey log convention 
ERR is if something fatal just happened

WARNING is something bad happened, but we're still running. The bad thing
is either a bug in the code, an attack or buggy protocol/implementation
of the remote peer, etc. The operator should examine the bad thing and
try to correct it.
(No error or warning messages should be expected. I expect most people
to run on -l warning eventually.)

NOTICE is never ever used.

INFO means something happened (maybe bad, maybe ok), but there's nothing
you need to (or can) do about it.

DEBUG is for everything louder than INFO.


svn:r486
 2003-09-26 10:03:50 +00:00
Nick Mathewson
3d4ccb781a Refactor buffers; implement descriptors. 
'buf_t' is now an opaque type defined in buffers.c .

Router descriptors now include all keys; routers generate keys as
needed on startup (in a newly defined "data directory"), and generate
their own descriptors.  Descriptors are now self-signed.

Implementation is not complete: descriptors are never published; and
upon receiving a descriptor, the directory doesn't do anything with
it.

At least "routers.or" and orkeygen are now obsolete, BTW.


svn:r483
 2003-09-25 05:17:11 +00:00
Roger Dingledine
9c6343fdf8 refactor connects into connection_connect() 
svn:r460
 2003-09-16 01:58:46 +00:00
Roger Dingledine
e585dad887 fix the cpuworker circ-had-vanished bug (maybe) 
still several (many) tls-related bugs outstanding.


svn:r454
 2003-09-14 02:58:50 +00:00
Roger Dingledine
4c7e936a3a note an assert bug that's still around 
svn:r417
 2003-08-25 22:02:42 +00:00
Roger Dingledine
2dda97e8fd implemented cpuworkers 
please poke at it and report bugs

still needs polishing, and only handles onions now (should handle
OR handshakes too)


svn:r402
 2003-08-20 23:05:22 +00:00
Roger Dingledine
88edae9407 start refactoring dnsworker so testing won't be so darn hard 
add NumCpus config variable in preparation for cpuworkers
hardcode /etc/torrc path for config (simplifies win32 port)
improve exit policy debugging during router entry parsing


svn:r397
 2003-08-14 03:52:51 +00:00
Roger Dingledine
e1f2693d05 bugfix: if a dnsworker dies, remember that. 
svn:r396
 2003-08-13 22:38:46 +00:00
Nick Mathewson
2cb4f7a473 Adopt socketpair implementation from perl. For now, always use it. 
svn:r389
 2003-08-12 07:43:15 +00:00
Roger Dingledine
5d9cfb7164 use the spawn_func / spawn_exit abstraction for dnsworkers 
svn:r388
 2003-08-12 07:35:17 +00:00
Nick Mathewson
c336c99e60 Start of port to win32. Missing are: 
- signal support
  - forking for DNS farm
  - changes for async IO
  - daemonizing

In other words, some files still don't build, and the ones that do build,
do nonblocking IO incorrectly.

I'm also not checking in the project files till I have a good place
for them.


svn:r380
 2003-08-12 03:08:41 +00:00
Roger Dingledine
f8203505e1 if stream ends before resolve finishes, inform resolver 
svn:r359
 2003-06-27 00:57:04 +00:00
Roger Dingledine
5d13db862e entries in the dns cache now expire 
(expiry time set to 100 seconds so we can play with it)
exit connections are now informed when pending resolves fail
we kill off the oldest busy worker when we're under attack and need to
  resolve something new


svn:r356
 2003-06-25 07:19:30 +00:00
Roger Dingledine
dbf3435cde simplify fetch_from_buf; cull idle dnsworkers. 
svn:r354
 2003-06-25 00:31:41 +00:00
Roger Dingledine
e061b70dbf a pointer to async-dns alternatives. 
apparently glibc 2.2.4 and windows both have async gethostbynames now.
we'll want to make use of them if they're available (via autoconf).


svn:r347
 2003-06-24 05:17:09 +00:00
Roger Dingledine
05a8c264ff overhaul the dns farm: cut its size in half 
i've eliminated the master dns process, so now the workers just
act like regular connections and are handled by the normal pollarray.

everything seems to still work. ;)


svn:r327
 2003-06-17 14:31:05 +00:00
Roger Dingledine
d3292e484a implement truncate and truncated (untested) 
clean up circuit_deliver_relay_cell convention


svn:r312
 2003-06-12 10:16:33 +00:00
Roger Dingledine
39e9d79038 add circuit-level sendme relay cells 
remove sendme cells
replace malloc with tor_malloc
patch (but not track down) bug in onion pending list
streamline connection_ap handshake


svn:r293
 2003-05-20 06:41:23 +00:00
Nick Mathewson
c217b1ca71 Add magic to end of C files to make emacs happy; split test invocation into separate file. 
svn:r224
 2003-04-07 02:12:02 +00:00
Roger Dingledine
afa95ca47c make servers tolerate the dns bug. 
svn:r223
 2003-04-05 19:53:45 +00:00
Roger Dingledine
1768f29d7e better comments and a few patches 
svn:r164
 2003-03-04 04:36:37 +00:00
Roger Dingledine
1714ea2ab8 Bugfixes and enhancements in sendmes and dns farm 
svn:r161
 2003-02-18 01:35:55 +00:00
Roger Dingledine
8c136b3a06 bugfix: actually remember the answer in the cache :) 
svn:r159
 2003-02-16 02:05:24 +00:00
Roger Dingledine
3cf02a88f4 rudimentary dns caching (of both resolves and resolve failures) 
serious performance increase over non-caching


svn:r158
 2003-02-14 07:53:55 +00:00
Roger Dingledine
0bc8dc1314 fix endian issues for topics -- they might work on bsd now 
(they wouldn't have before)

alternate code which bypasses the dns farm, so we can compare speed


svn:r154
 2003-02-06 23:48:35 +00:00
Roger Dingledine
ceafe12ed6 make reusing circuits work (and be the default) 
performance is better, but not by much. not sure why yet.


svn:r153
 2003-02-06 08:00:49 +00:00
Roger Dingledine
c35373a2cf major overhaul: dns slave subsystem, topics 
on startup, it forks off a master dns handler, which forks off dns
slaves (like the apache model). slaves as spawned as load increases,
and then reused. excess slaves are not ever killed, currently.

implemented topics. each topic has a receive window in each direction
at each edge of the circuit, and sends sendme's at the data level, as
per before. each circuit also has receive windows in each direction at
each hop; an edge sends a circuit-level sendme as soon as enough data
cells have arrived (regardless of whether the data cells were flushed
to the exit conns). removed the 'connected' cell type, since it's now
a topic command within data cells.

at the edge of the circuit, there can be multiple connections associated
with a single circuit. you find them via the linked list conn->next_topic.

currently each new ap connection starts its own circuit, so we ought
to see comparable performance to what we had before. but that's only
because i haven't written the code to reattach to old circuits. please
try to break it as-is, and then i'll make it reuse the same circuit and
we'll try to break that.


svn:r152
 2003-01-26 09:02:24 +00:00