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448 Commits

Author SHA1 Message Date
Roger Dingledine
aaf35cccf7 karsten's second refactoring patch 
svn:r12607
 2007-11-29 15:25:04 +00:00
Nick Mathewson
6fcda5299f r14727@31-33-67: nickm | 2007-11-05 18:34:35 -0500 
Make VERSIONS variable-length.


svn:r12391
 2007-11-05 23:34:39 +00:00
Nick Mathewson
9a20a64b62 r16438@catbus: nickm | 2007-11-05 16:45:45 -0500 
Initial code for variable-length cells. CERT and VERSIONS  need to use them.


svn:r12390
 2007-11-05 21:46:35 +00:00
Roger Dingledine
e5885deab5 Separate "SOCKS_COMMAND_CONNECT_DIR" into two flags in 
edge_connection_t: want_onehop if it must attach to a circuit with
only one hop (e.g. for the current tunnelled connections that use
begin_dir), and use_begindir if we mean to use a BEGIN_DIR relay
command to establish the stream rather than the normal BEGIN. Now
we can make anonymized begin_dir connections for (e.g.) more secure
hidden service posting and fetching.


svn:r12244
 2007-10-28 08:16:19 +00:00
Peter Palfrader
1a94e84661 Say "using socksX _to_ port y" instead of "socksX _on_ port y". it confuses weasel less 
svn:r11834
 2007-10-10 15:44:34 +00:00
Nick Mathewson
91f83cfc2d r14830@catbus: nickm | 2007-08-29 13:50:10 -0400 
Make controllers accept LF as well as CRLF.  Update spec to reflect this.  Remove now-dead code.  Make controller warning about v0 protocol more accurate.


svn:r11299
 2007-08-29 19:02:33 +00:00
Nick Mathewson
480db0f00a r14034@catbus: nickm | 2007-07-31 05:22:56 -0400 
possible fix for bug 473: always set buf->cur on buf_remove_from_front.


svn:r11004
 2007-07-31 09:31:15 +00:00
Nick Mathewson
9fb77a6479 Disable SENTINELS in buffers: it may be responsible for making platform mallocs() be inefficient, and we havent needed it in a long long time. 
svn:r10994
 2007-07-30 17:51:14 +00:00
Nick Mathewson
9260a824ef Yet another buffer RAM patch: tNever ever ever keep a buffer memory chunk around for an empty buffer that could go on the freelist. This wants profiling to make sure that performance doesnt suffer. 
svn:r10993
 2007-07-30 17:47:43 +00:00
Nick Mathewson
0d274e1db1 r13952@catbus: nickm | 2007-07-27 19:18:46 -0400 
Weasel noticed that many buffers spend their time with empty 4k, 8k, and 16k memory chunks.  Thus, be more aggressive about putting empty chunks on the freelist, regardless of their high water marks.  (Also, run buffer_shrink_freelist on the 8k-chunk freelist.)


svn:r10953
 2007-07-27 23:19:02 +00:00
Nick Mathewson
a5477c7bb9 r13944@catbus: nickm | 2007-07-27 15:52:35 -0400 
Fix warnings on platforms where rlim values can be signed.
 Add an 8k buffer freelist.
 


svn:r10948
 2007-07-27 19:53:29 +00:00
Nick Mathewson
bc9a7be943 r13939@catbus: nickm | 2007-07-27 14:33:22 -0400 
When dumping memory usage, list bytes used in buffer memory free-lists.


svn:r10947
 2007-07-27 18:33:37 +00:00
Roger Dingledine
a1ab2c8087 free bridge list on exit; try harder to free buffer freelists on exit. 
svn:r10854
 2007-07-17 11:33:38 +00:00
Roger Dingledine
fcbb817db5 free another string, and the buffer freelists, on exit. 
svn:r10851
 2007-07-17 09:26:45 +00:00
Nick Mathewson
5adfa09fce r13477@catbus: nickm | 2007-06-17 14:22:03 -0400 
Sun CC likes to give warnings for the do { } while(0) construction for making statement-like macros.  Define STMT_BEGIN/STMT_END macros that do the right thing, and use them everywhere.


svn:r10645
 2007-06-17 18:22:39 +00:00
Nick Mathewson
1866ad3506 r13274@catbus: nickm | 2007-06-05 19:06:30 -0400 
Remove some deadcode that seems unlikely to return


svn:r10509
 2007-06-06 04:51:25 +00:00
Nick Mathewson
9aaf3d182f r12934@catbus: nickm | 2007-05-24 14:11:18 -0400 
When freeing slack buffers, free the buffers at the end of the freelist first.


svn:r10313
 2007-05-24 18:12:41 +00:00
Nick Mathewson
e043b86f47 r12764@catbus: nickm | 2007-05-15 17:17:39 -0400 
Enable (and cope with) more GCC 4.2 warnings.


svn:r10196
 2007-05-15 21:17:48 +00:00
Nick Mathewson
e3b2a7b53b r12935@Kushana: nickm | 2007-05-10 11:25:09 -0400 
Make buffer unit tests pass again


svn:r10158
 2007-05-10 15:25:40 +00:00
Roger Dingledine
8e8144cd58 fix a printf size_t/int mismatch from r10150 
svn:r10152
 2007-05-10 04:04:44 +00:00
Nick Mathewson
34a09c24b5 r12706@catbus: nickm | 2007-05-09 18:39:46 -0400 
Keep two freelists for buffer ram chunks: one of 4k chunks, and one of 16k chunks.  Also, document the whole business.


svn:r10150
 2007-05-09 22:39:49 +00:00
Nick Mathewson
b248ed620f r12704@catbus: nickm | 2007-05-09 17:43:34 -0400 
Periodically clean the freelist of buffer memory chunks.


svn:r10149
 2007-05-09 21:43:41 +00:00
Roger Dingledine
3d00738ec7 simplify connection_watch_events() 
hope this doesn't break it


svn:r10025
 2007-04-25 07:20:04 +00:00
Nick Mathewson
94eef608ae r12784@Kushana: nickm | 2007-04-23 19:24:09 -0400 
Avoid another assert failure in the new buffer memory code.  (This time, it hit when freeing a 4k buffer with some data on it.)


svn:r10011
 2007-04-23 23:24:53 +00:00
Nick Mathewson
3831d77dba r12782@Kushana: nickm | 2007-04-23 18:20:19 -0400 
Avoid a segfault when freeing a buffer with size 0.


svn:r10010
 2007-04-23 22:20:45 +00:00
Nick Mathewson
2f4784cbd8 r12499@catbus: nickm | 2007-04-23 10:42:23 -0400 
Keep a freelist of unused 4k buffer chunks, rather than wasting 8k for every inactive connection_t.


svn:r10006
 2007-04-23 14:42:27 +00:00
Nick Mathewson
473c266fc2 r12496@catbus: nickm | 2007-04-22 23:04:05 -0400 
When logging memory usage, break down memory used in buffers by buffer type.


svn:r10004
 2007-04-23 03:04:46 +00:00
Nick Mathewson
648065fcb4 r12763@Kushana: nickm | 2007-04-20 18:42:58 -0400 
Initial version of code to stop using socket pairs for linked connections.  Superficially, it seems to work, but it probably needs a lot more testing and attention.


svn:r9995
 2007-04-21 17:26:12 +00:00
Nick Mathewson
92f62b3684 r12077@catbus: nickm | 2007-03-04 16:08:23 -0500 
Remove support for v0 control protocol from 0.2.0.x trunk; send back error when we receive a v0 control message.  (Leave "if(v1){...}"blocks indented for now so this patch is easier to read.)  ((Finally, the linecount goes _down_ a little.))


svn:r9735
 2007-03-04 21:08:28 +00:00
Roger Dingledine
50f22e858a doc pedant 
svn:r9634
 2007-02-24 07:50:38 +00:00
Nick Mathewson
11e5656ab7 r11826@catbus: nickm | 2007-02-16 14:58:38 -0500 
Resolve 56 DOCDOC comments.


svn:r9594
 2007-02-16 20:01:02 +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
Nick Mathewson
ead35ef944 r11957@Kushana: nickm | 2007-01-15 15:25:57 -0500 
Patch from Mike Perry: Track reasons for OR connection failure; display them in control events. Needs review and revision.


svn:r9354
 2007-01-15 21:13:37 +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
30e4f4f6ce when we're doing a write split over the end of a circular 
buffer, make sure our tls_get_forced_write_size doesn't
make it write whatever's after the buffer.

this hasn't triggered yet, but it would be rare, so let's
leave it in.


svn:r9107
 2006-12-14 03:26:42 +00:00
Nick Mathewson
c9c8072bd3 r11569@Kushana: nickm | 2006-12-13 17:59:58 -0500 
fix last fix


svn:r9106
 2006-12-13 23:00:05 +00:00
Nick Mathewson
43e06eba8b r11566@Kushana: nickm | 2006-12-13 17:46:24 -0500 
Try to fix an assert failure in new write limiting code: make buffers.c aware of previous "forced" write sizes from tortls.


svn:r9105
 2006-12-13 22:46:42 +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
Nick Mathewson
ad1f019110 r9317@totoro: nickm | 2006-11-13 22:45:33 -0500 
Fix some more mipspro warnings.  Nothing should remain excecpt "conversion from pointer to same-sized integral type."


svn:r8950
 2006-11-14 03:45:48 +00:00
Nick Mathewson
1913cb915e r9308@totoro: nickm | 2006-11-13 18:41:23 -0500 
Add support for (Free?)BSD's natd, which was an old way to let you
 have your firewall automatically redirect traffic.  (Original patch
 from Zajcev Evgeny, updated for 0.1.2.x by tup.)
 


svn:r8946
 2006-11-14 00:06:31 +00:00
Roger Dingledine
8f7940348f Avoid an infinite loop on evil controlport input. Fixes bug 350, 
unless it doesn't. (Nick, please confirm.)

Backport candidate.


svn:r8844
 2006-10-28 08:17:02 +00:00
Roger Dingledine
7d33c4b904 clean up and downgrade some log messages 
svn:r8727
 2006-10-15 07:42:51 +00:00
Nick Mathewson
213658f117 r8894@Kushana: nickm | 2006-09-21 18:30:42 -0400 
Specify and implement SOCKS5 interface for reverse hostname lookup.


svn:r8451
 2006-09-22 00:43:55 +00:00
Nick Mathewson
93beeac01d Merge in some bsockets calls, all wrapped inside #if defined(USE_BSOCKETS) 
svn:r8427
 2006-09-19 20:41:31 +00:00
Nick Mathewson
dbe0c6f6ef r8609@Kushana: nickm | 2006-08-27 17:24:27 -0400 
Add some doxygen, concentrated in dns.c


svn:r8256
 2006-08-28 03:16:02 +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
Roger Dingledine
0649fa14c1 make our socks5 handling more robust to broken socks clients: 
throw out everything waiting on the buffer in between socks
handshake phases, since they can't possibly (so the theory
goes) have predicted what we plan to respond to them.


svn:r8223
 2006-08-24 04:51:55 +00:00
Roger Dingledine
3d79eb52ab stick to nick's nul/null convention 
svn:r6763
 2006-07-15 19:21:30 +00:00
Nick Mathewson
b4b8da5d23 Turn a while into a do/while; save a redundant test 
svn:r6683
 2006-06-24 02:10:21 +00:00
Nick Mathewson
5c0d7fb016 Resolve control flow warning. 
svn:r6658
 2006-06-18 20:39:46 +00:00
Nick Mathewson
0932f463ff Ah. That seems to work. 
svn:r6657
 2006-06-18 16:39:26 +00:00
Nick Mathewson
5ba72d0ae5 another write_to_buf_zlib fix. 
svn:r6656
 2006-06-18 16:20:38 +00:00
Nick Mathewson
a9cffd2ff0 Re-enable buffer RAM guard values. 
svn:r6653
 2006-06-18 15:53:54 +00:00
Nick Mathewson
11c2e97d51 Another _zlib fix. 
svn:r6652
 2006-06-18 09:03:48 +00:00
Nick Mathewson
10b7b57616 Temporarily disable sentinels on buffers 
svn:r6649
 2006-06-18 08:44:34 +00:00
Nick Mathewson
9376d901ed make zlib buffer function set buf_highwater properly 
svn:r6648
 2006-06-18 08:21:27 +00:00
Nick Mathewson
cd38511a1e Part of incremental encryption logic for buffers: there is a subtle yucky point documented in a comment. 
svn:r6637
 2006-06-18 07:27:47 +00:00
Roger Dingledine
fab1feee26 complain when we hit wsaenobufs on recv or write too. 
perhaps this will help us hunt the bug.


svn:r6321
 2006-04-08 07:54:11 +00:00
Roger Dingledine
d8195e4128 Implement Jason Holt's SafeSocks config option. 
Also put a URL in the warning message for unsafe socks4 use --
previously we'd only had the URL for unsafe socks5 use. Oops.


svn:r6190
 2006-03-19 01:44:53 +00:00
Roger Dingledine
9a5df4cef5 resume being printist: if the hostname contains non-printable 
characters, then fail. this time don't even bother telling the
server operator about these cases, because what's he going to do?

if it turns out that some significant population somewhere in the
world uses non-printable hostnames and wants to use tor, then i
hereby assume that they will contact us.


svn:r6171
 2006-03-15 23:36:57 +00:00
Roger Dingledine
e8fd871d8b Stop being printist: just because our local platform doesn't 
consider an alleged destination to be printable doesn't mean
nobody in the world will want to use it.


svn:r6167
 2006-03-15 19:17:34 +00:00
Nick Mathewson
bd8ffccae7 More cleanups noticed by weasel; also, remove macros that nobody uses. 
svn:r6143
 2006-03-12 23:31:16 +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
Roger Dingledine
5f051574d5 Happy new year! 
svn:r5949
 2006-02-09 05:46:49 +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
39265dd72e In my private little universe, terminals are still 80 columns. Impose a 160-character-per-line limit; this will creep down. 
svn:r5548
 2005-12-09 05:37:26 +00:00
Nick Mathewson
fea19528a1 assert_buf_ok was showing up in the profile; remove it from critical-path functions, since it hasnt triggered for ages. 
svn:r5479
 2005-11-30 22:48:58 +00:00
Roger Dingledine
c4aa9e7941 Add a new config option TestSocks so people can see if their 
applications are using socks4, socks4a, socks5-with-ip, or
socks5-with-hostname. This way they don't have to keep mucking
with tcpdump and wondering if something got cached somewhere.


svn:r5399
 2005-11-16 23:37:35 +00:00
Roger Dingledine
bf2be9abd7 Do round-robin writes of at most 16 kB per write. This might 
be more fair on loaded Tor servers, and it might resolve our
Windows crash bug. It might also slow things down.


svn:r5332
 2005-10-29 18:19:37 +00:00
Nick Mathewson
5d85560d9e Remove last vestiges of old logging interface. 
svn:r5317
 2005-10-25 18:01:01 +00:00
Nick Mathewson
f9b0be526e Use LD_BUG as appropriate; convert rend* and router* to new logging interface; use new circ_log_path interface 
svn:r5302
 2005-10-24 19:39:45 +00:00
Nick Mathewson
55f2ab9cc3 Migrate a few more files to domained logging 
svn:r5285
 2005-10-18 22:21:29 +00:00
Nick Mathewson
998cf8d622 Try to extract as many descriptors as possible from truncated http responses. (when DIR_PURPOSE_FETCH_ROUTERDESC) 
svn:r5249
 2005-10-14 02:26:13 +00:00
Nick Mathewson
ba24193ab5 Make doxygen marginally happier 
svn:r5208
 2005-10-06 04:33:40 +00:00
Nick Mathewson
de198d800b Never call free() on tor_malloc()d memory. This is unlikely to be our current leak, but it may help dmalloc work. 
svn:r5168
 2005-09-30 20:47:58 +00:00
Nick Mathewson
92451f74a8 Reformat inconsistent function declarations. 
svn:r5160
 2005-09-30 01:09:52 +00:00
Roger Dingledine
fba01c3cc0 bugfix: we were whining about using socks4 or socks5-with-local-lookup 
even when they used an IP in the "virtual" range we designed exactly
for this case.


svn:r5142
 2005-09-24 21:56:04 +00:00
Roger Dingledine
6a52aa52fe fix a pair of hard-coded urls 
svn:r4887
 2005-08-30 07:01:30 +00:00
Nick Mathewson
4870877231 Add SOCKSAndDNS link to appropriate log message, since we wind up pointing everybody to it anyway 
svn:r4695
 2005-08-04 20:12:44 +00:00
Nick Mathewson
0828feaf7c Add belt-and-suspenders fix to coredump from yesterday; document more functions in buffers.c 
svn:r4532
 2005-07-12 18:19:30 +00:00
Roger Dingledine
8f9790a023 fix a seg fault with autodetecting which controller version is being used 
svn:r4531
 2005-07-12 05:48:15 +00:00
Roger Dingledine
9c67ae34f1 overall cleanup and streamlining and doccing 
also fix a DoS avenue on dirservers


svn:r4468
 2005-06-20 23:04:13 +00:00
Nick Mathewson
9b4aa8d2ab Implement all the easy bits of the new control protocol 
svn:r4449
 2005-06-17 20:37:21 +00:00
Nick Mathewson
f9f09f1c5e Start implementing framework for revised control spec. 
svn:r4447
 2005-06-17 18:49:55 +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
Roger Dingledine
2587fa09f9 move more docs into our code 
svn:r4406
 2005-06-11 06:07:22 +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
Roger Dingledine
d922fa7b10 fix another underflow in keeping stats 
these size_ts are subtle buggers


svn:r4364
 2005-06-09 03:57:54 +00:00
Nick Mathewson
87caad5445 Fix an underflow in buffer use conting. 
svn:r4360
 2005-06-08 21:55:02 +00:00
Nick Mathewson
b0538591c7 Reset buf->highwater every time buf_shrink is called, not just on suffessful shrink. 
svn:r4353
 2005-06-08 20:17:32 +00:00
Roger Dingledine
4c43789435 Some play code to throw away old buffers sometimes rather 
than constantly reallocing them; just in case this is our memory
problem. It looks for now like it isn't, so disabled.


svn:r4349
 2005-06-08 17:27:11 +00:00
Nick Mathewson
baa10cbbfa Instrument buffers.c and rephist.c memory usage 
svn:r4317
 2005-06-06 17:03:21 +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
8b9ae25224 Change some >=s to >s in buf_resize, so that we do not denormalize buffers on resize. 
svn:r4172
 2005-05-03 03:25:04 +00:00
Nick Mathewson
14bac4dad4 Elaborate on buf_shrink comment. 
svn:r4169
 2005-05-02 23:41:39 +00:00
Roger Dingledine
aa6bcd50ca comment buf_shrink 
svn:r4168
 2005-05-02 23:39:09 +00:00
Nick Mathewson
ad547cbb8c Correct and simplify buf_shrink logic 
svn:r4167
 2005-05-02 23:36:13 +00:00
Nick Mathewson
d6a6c8785b When removing all bytes from a buffer, reset buf->cur=buf->mem 
svn:r4166
 2005-05-02 23:32:23 +00:00
Nick Mathewson
a312ce1d3b Change buffer shrinking strategy: only try to shrink once every 3 minutes. Do not try to read over buffer size unless buffer is nearly empty. 
svn:r4165
 2005-05-02 23:17:08 +00:00
Nick Mathewson
9c683c7613 Make buffer shrinking algorithm a little smarter. 
svn:r4164
 2005-05-02 22:49:24 +00:00
Nick Mathewson
fe65e57ca1 Re-do fragmented control message handling to work with new buf_t system. 
svn:r4144
 2005-04-27 22:01:34 +00:00
Nick Mathewson
d0a9a8bdd3 Appease VC7. It has a strangely puritanical attitude about what programmers are allowed to do a consenting void*. 
svn:r4140
 2005-04-27 20:02:52 +00:00
Nick Mathewson
53607d3bb3 Turn SENTINELS back on; give NOINLINE a name and turn it off. 
svn:r4139
 2005-04-27 19:40:31 +00:00
Roger Dingledine
4c4a14e3cb turn off the mongo debugging stuff, for performance tests 
svn:r4137
 2005-04-27 17:21:42 +00:00
Nick Mathewson
52376dc9e8 Rename buf->start to buf->cur; fix bug in read_to_buf; still debug with paranoia. 
svn:r4130
 2005-04-27 02:55:21 +00:00
Nick Mathewson
746768df5d Add even more debugging code; temporarily disable inlines in buffers.c 
svn:r4129
 2005-04-27 00:53:44 +00:00
Roger Dingledine
2a7aec0ffd fix function prototype, fix typo 
svn:r4126
 2005-04-26 21:29:20 +00:00
Nick Mathewson
ecc76d8245 Avoid overflow on wrapping a TLS read. 
svn:r4125
 2005-04-26 21:20:22 +00:00
Nick Mathewson
9ba2dd7ea1 Clean/renormalize whitespace 
svn:r4122
 2005-04-26 20:55:32 +00:00
Nick Mathewson
ef2409e4ed Change the implementation of buf_t a lot: make it a ring buffer to minimize memmove on flush. This may break the universe, but it is probably Necessary For Perfomance. 
svn:r4121
 2005-04-26 20:53:22 +00:00
Roger Dingledine
12ea3a26b2 bugfix: make a debug log stop lying 
svn:r4110
 2005-04-25 15:43:05 +00:00
Nick Mathewson
5827e2e216 Fix "JAP-client" hideous ASN1 bug, twice. (Fix1: check more thoroughly for TLS errors when handling certs. Fix2: stop assert(0)ing on uncaught TLS errors.) 
svn:r4085
 2005-04-23 14:26:02 +00:00
Roger Dingledine
97637549bb tie MAX_DIR_SIZE to MAX_BUF_SIZE 
resolve bug 80


svn:r4052
 2005-04-07 22:13:17 +00:00
Nick Mathewson
0e81265359 update copyright notices. 
svn:r3982
 2005-04-01 20:15:56 +00:00
Nick Mathewson
97dad670ea Renormalize whitespace 
svn:r3757
 2005-03-14 03:18:35 +00:00
Nick Mathewson
aaf70df3bd Fix signed/unsigned warning 
svn:r3736
 2005-03-10 18:45:42 +00:00
Nick Mathewson
b494c2223d Specify and implement fragmented control messages to allow for (among other things) long GETINFO replies. Otherwise we could hit the 64K barrier on questions like "please dump your client-side DNS cache." 
svn:r3726
 2005-03-02 20:22:10 +00:00
Nick Mathewson
4ddf768a4f Forward-port new reasons; clean up code more; add code to convert new reasons to SOCKS5 reply codes; add code to convert errnos to reasons. New code still needs to get invoked. 
svn:r3719
 2005-03-01 22:16:15 +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
a005509c9d update url for when users try to use socksport as an http proxy 
svn:r3265
 2005-01-03 23:19:15 +00:00
Roger Dingledine
f50b785c3b and forward port the cleanup 
svn:r3211
 2004-12-22 10:04:50 +00:00
Roger Dingledine
18320557a1 fix a crash: if you do socks4 with an IP of 0.0.0.x then we get tricked 
into thinking you're doing socks4a, and we look for the next byte.

thanks to aphex for finding this.


svn:r3207
 2004-12-22 09:52:29 +00:00
Roger Dingledine
ad4f440e10 rearrange debug logs to make more sense 
svn:r3116
 2004-12-07 21:57:10 +00:00
Nick Mathewson
b457cfb5eb Spell-check strings and comments 
svn:r3052
 2004-12-01 03:48:14 +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
Nick Mathewson
f77ff938b7 remember; tor_socket_errno has side effects! 
svn:r2997
 2004-11-28 05:48:02 +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
27b8797245 clean up some more. 
i think i'm getting closer.


svn:r2931
 2004-11-21 11:20:28 +00:00
Nick Mathewson
aa1c0c4d67 Resolve FIXME items: fix assert failure on malformed socks4a qreuests. (bug reported by Anna Shubina wrt old Netscapes) 
svn:r2790
 2004-11-10 14:26:34 +00:00
Nick Mathewson
66779137bf Add missing dereference; stop throwing zeroes around. 
svn:r2702
 2004-11-07 22:18:00 +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
Nick Mathewson
d9e0f3f9bc Make sure control command bodies are always followed by a NUL 
svn:r2678
 2004-11-04 22:30:49 +00:00
Nick Mathewson
347d3f9d62 Start implementing control interface. 
svn:r2652
 2004-11-03 01:32:26 +00:00
Nick Mathewson
6980929e64 Use strlcpy, not strcpy. 
svn:r2610
 2004-10-27 06:48:16 +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
1c9426d6e0 Build without warnings on mac gcc 3.3 
svn:r2487
 2004-10-14 03:18:14 +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
0b4d3c4df7 parse HttpProxy address in config 
fix a potential confusion in fetch_from_buf_http()
make all our int config options non-negative
better bounds checking on options that are ports


svn:r2456
 2004-10-12 20:22:09 +00:00
Nick Mathewson
f6fc2b9dd2 Add fix for remote-crash bug. 
svn:r2447
 2004-10-12 18:38:36 +00:00
Roger Dingledine
44ff309c26 touch-ups 
svn:r2192
 2004-08-07 09:01:04 +00:00
Roger Dingledine
dbf150bd4e list the port and socks version when complaining about unsafe socks 
svn:r2188
 2004-08-07 04:03:01 +00:00
Roger Dingledine
6e9bdc862c when they use tor as an http proxy, point them at a better url 
svn:r2161
 2004-08-06 19:44:17 +00:00
Roger Dingledine
8b55f73bbe put the have_warned_about_unsafe_socks static var inside the function 
svn:r2128
 2004-08-04 01:08:10 +00:00
Roger Dingledine
8cb4124121 warn if we use an unsafe socks variant 
for now, warn every time. we should decide how often we want to warn;
one problem here is that there are several scenarios where we use an
unsafe socks variant safely, so the warning may be inaccurate. hm.


svn:r2126
 2004-08-03 23:42:33 +00:00
Roger Dingledine
379768290e fix a bug related to reading usernames for socks4 
this hasn't bitten us yet, but hey.


svn:r2026
 2004-07-12 16:51:05 +00:00
Roger Dingledine
207fcb35d1 tweaks and bugfix on resolve/resolved code 
svn:r1980
 2004-06-17 21:11:09 +00:00
Nick Mathewson
3708886939 Implement RESOLVE/RESOLVED cells and socks resolve code 
svn:r1978
 2004-06-17 18:13:09 +00:00
Roger Dingledine
4181d18b3d declare the epipe bug a non-bug. 
now we catch and ignore epipe signals, and when write returns epipe,
we simply return -1 and close the socket/connection.


svn:r1928
 2004-06-01 17:31:13 +00:00
Nick Mathewson
ba14428d66 Fix segfault 
svn:r1895
 2004-05-19 19:28:24 +00:00
Nick Mathewson
7511fbf993 Resolve some XXXs 
svn:r1889
 2004-05-18 15:35:21 +00:00
Nick Mathewson
720281b32e Close rogue <b>s 
svn:r1838
 2004-05-10 07:27:29 +00:00
Roger Dingledine
c6d4a00c5f more doxygen markup 
plenty more remains


svn:r1824
 2004-05-09 16:47:25 +00:00
Nick Mathewson
93576d5289 Add doxygen markup for util and buffers 
svn:r1820
 2004-05-07 17:04:12 +00:00
Nick Mathewson
682a805092 Comments for nearly all non-tricky files 
svn:r1796
 2004-05-05 21:32:43 +00:00
Roger Dingledine
25909c2c29 patches on patches 
svn:r1763
 2004-05-02 03:15:55 +00:00
Nick Mathewson
f6fe336ad4 Documenmt buffers.c; remove function that nobody ever calls. 
svn:r1760
 2004-05-01 22:08:43 +00:00
Nick Mathewson
6fa2ded74c Fix windows compile 
svn:r1757
 2004-05-01 20:55:31 +00:00
Nick Mathewson
908ccb9dcd Handle windows socket errors correctly; comment most of common. 
svn:r1756
 2004-05-01 20:46:28 +00:00
Nick Mathewson
7055f837ab Make Tor build on win32 with VC6 without warnings. 
svn:r1739
 2004-04-28 20:13:21 +00:00
Nick Mathewson
06624df622 Log number of bytes pending after read. 
svn:r1726
 2004-04-26 23:05:58 +00:00
Nick Mathewson
ad07c62938 Add a macro to catch unhandled openssl errors. 
svn:r1723
 2004-04-26 23:00:07 +00:00
Roger Dingledine
e34c201bb3 and other debugs 
svn:r1722
 2004-04-26 22:22:18 +00:00
Roger Dingledine
80d0b634a4 add a debugging entry, to find the wants-to-read-but-can't bug 
svn:r1719
 2004-04-26 21:15:06 +00:00
Roger Dingledine
25d54257fb use tor_assert 
remove obsolete BUF_OK macro


svn:r1697
 2004-04-25 20:37:37 +00:00
Roger Dingledine
36d7cc8529 make the max buf size 10 megabytes, not 1 megabyte 
need to implement flexible buffer sizes soon


svn:r1553
 2004-04-08 02:19:35 +00:00
Nick Mathewson
789df20e7d There is no need to cast void* to other pointer types. 
svn:r1524
 2004-04-07 20:11:28 +00:00
Nick Mathewson
ba196a9d17 Use (set|get)_uint(16|32) in lieu of memcpy where reasonable. 
svn:r1462
 2004-04-03 03:07:25 +00:00
Roger Dingledine
b4a61d1ab1 better way: always nul-terminate. then sometimes use it, sometimes not. 
svn:r1408
 2004-03-31 05:10:34 +00:00
Roger Dingledine
87dbd36a3c let fetch_from_buf_http tolerate nuls in the http body 
teach directory.c about which places it needs to nul-terminate
body before it uses it, and which places it must not


svn:r1407
 2004-03-31 05:01:30 +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
52e813951a start tracking the 'broken pipe' error 
svn:r1261
 2004-03-11 20:15:53 +00:00
Nick Mathewson
9b4203266e Make OP work on windows! (Also misc logging tweaks) 
svn:r1258
 2004-03-11 06:19:08 +00:00
Nick Mathewson
2da54de968 Make tor build on windows again. More work still needed 
svn:r1247
 2004-03-09 22:01:17 +00:00
Roger Dingledine
0ab367ed91 re-try streams at most 4 times 
svn:r1242
 2004-03-07 23:50:15 +00:00
Nick Mathewson
b7633e2e67 Try to find out early if buffers get trashed or double-freed. 
svn:r1225
 2004-03-03 22:49:15 +00:00
Nick Mathewson
f039eca658 Stop trying to flush on broken sockets marked for close. 
svn:r1163
 2004-02-28 19:14:11 +00:00
Roger Dingledine
dd632e697e clean up some log messages and severities 
still plenty more left to clean


svn:r1158
 2004-02-28 07:01:22 +00:00
Roger Dingledine
a24b6e6d4f make flush_buf have a sane return convention 
svn:r1157
 2004-02-28 05:22:07 +00:00
Peter Palfrader
1bc2384c5a Give the nice message about not being an HTTP proxy an <h1> headline 
svn:r1139
 2004-02-27 01:33:02 +00:00
Roger Dingledine
2c74f19d7e writing html in C strings sucks 
svn:r1127
 2004-02-26 22:10:55 +00:00
Roger Dingledine
8f2b429a3b when they use tor as an http proxy, give them an http 501 failure 
svn:r1126
 2004-02-26 22:02:22 +00:00
Roger Dingledine
b42b16357f note an assert trigger, if you use an old broken netscape socks4 
svn:r1022
 2004-01-30 15:15:11 +00:00
Roger Dingledine
45a66c6955 make a relay_header_t struct and pack/unpack funcs 
split 7-byte stream_id string into 2-byte recognized and 2-byte stream_id
fix two seg faults in fetch_from_buf_http
fix several lurking seg faults in handling unexpected relay cells

still need to
 * clean up relay_crypt
 * use relay dummies if there's going to be a conflict with rh.recognized
 * check for a conflict when generating stream_ids


svn:r953
 2003-12-19 05:09:51 +00:00
Roger Dingledine
6a19e64066 remove trailing whitespace 
svn:r951
 2003-12-17 21:09:31 +00:00
Roger Dingledine
5ecd6b6bad make fetch_from_buf_http malloc its strings rather 
than use fixed-size strings

reorganize directory_handle_command so it'll be easier to do more with
our directory servers


svn:r950
 2003-12-17 09:42:28 +00:00
Nick Mathewson
7c439c30d0 Resolve format warnings on MacOS X 10.3 
svn:r938
 2003-12-16 05:33:11 +00:00
Roger Dingledine
0ea88d508d oops, i broke buffers. fixed. 
svn:r931
 2003-12-14 08:15:41 +00:00
Roger Dingledine
9e3608ce7b more friendly warning when a connection buffer overflows 
svn:r918
 2003-12-14 04:18:43 +00:00
Roger Dingledine
fe856406be initial patches on patches 
svn:r814
 2003-11-16 17:00:02 +00:00
Nick Mathewson
dafb0e6a6e Make AP connections wait for a circuit if none exists. 
Also:
  - Refactor socks request into a separate struct
  - Add a separate 'waiting for circuit' state to AP connections
    between 'waiting for socks' and 'open'.

Arma: can you check out the XXX's I've added to connection_edge? I may
be mishandling some async and close logic.


svn:r783
 2003-11-11 02:41:31 +00:00
Roger Dingledine
efce1b8b3e put small buffers back in place 
svn:r629
 2003-10-19 01:10:38 +00:00
Roger Dingledine
f96f964a19 try to make cvs more stable for now. need to test this more in a bit. 
svn:r612
 2003-10-17 10:00:01 +00:00
Roger Dingledine
afd8fa5a97 change buf->buf to buf->mem 
maybe this will mean fewer dumb errors


svn:r599
 2003-10-15 19:17:21 +00:00
Nick Mathewson
75170f052b fix bug with overzealous shrinking; add more comments. 
svn:r597
 2003-10-15 19:07:07 +00:00
Roger Dingledine
58ec05877a make the buffer resize stuff work 
and make listener connections not have bufs


svn:r584
 2003-10-14 03:06:48 +00:00
Nick Mathewson
ee9e54b434 Make buffers grow and shrink as needed. 
svn:r583
 2003-10-14 01:34:31 +00:00
Roger Dingledine
4d0b8f00b1 clarify the warning for unrecognized socks version 
(generally happens when people use tor as an httpd proxy)


svn:r576
 2003-10-11 23:38:20 +00:00
Roger Dingledine
b9628f266f change WARNING to WARN 
and fix a few typos


svn:r571
 2003-10-10 01:48:32 +00:00
Nick Mathewson
36939303c9 Update LICENSE and copyright dates. 
svn:r560
 2003-10-08 02:04:08 +00:00
Roger Dingledine
a6bab569ab socks5 now works 
(or at least, we can talk to mozilla.)


svn:r536
 2003-10-04 01:37:01 +00:00
Roger Dingledine
0f25887048 clean up connection_assert_ok compiler warnings 
svn:r498
 2003-09-27 07:33:07 +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
Roger Dingledine
3b5191d36d various bugfixes and updates 
redo all the config files for the new format (we'll redo them again soon)

fix (another! yuck) segfault in log_fn when input is too large
tor_tls_context_new() returns -1 for error, not NULL
fix segfault in check_conn_marked() on conn's that die during tls handshake

make ORs also initialize conn from router when we're the receiving node

make non-dirserver ORs upload descriptor to every dirserver on startup
add our local address to the descriptor
add Content-Length field to POST command
revert the Content-Length search in fetch_from_buf_http() to previous code
fix segfault in memmove in fetch_from_buf_http()
raise maximum allowed headers/body size in directory.c


svn:r484
 2003-09-25 10:42:07 +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
40d0fca63a cleanups, bugfixes, more verbose logs 
Fixed up the assert_*_ok funcs some (more work remains)

Changed config so it reads either /etc/torrc or the -f arg, never both

Finally tracked down a nasty bug with our use of tls:
  It turns out that if you ask SSL_read() for no more than n bytes, it
  will read the entire record from the network (and maybe part of the next
  record, I'm not sure), give you n bytes of it, and keep the remaining
  bytes internally. This is fine, except our poll-for-read looks at the
  network, and there are no bytes pending on the network, so we never know
  to ask SSL_read() for more bytes. Currently I've hacked it so if we ask
  for n bytes and it returns n bytes, then it reads again right then. This
  will interact poorly with our rate limiting; we need a cleaner solution.


svn:r481
 2003-09-24 21:24:52 +00:00
Roger Dingledine
9fe1ed26ff get network/host order working right again for socks4 
svn:r476
 2003-09-21 06:44:53 +00:00
Roger Dingledine
ed51df7453 bugfixes and note missing features 
deal with content-length headers better when reading http
don't assume struct socks4_info is a packed struct
fail the socks handshake if destip is zero
flesh out conn_state_to_string() for dir conn
fix typo (bug) in connection_handle_read()
directory get is now called fetch, post is now upload
reopen logs on sighup


svn:r475
 2003-09-21 06:15:43 +00:00
Roger Dingledine
078c5ab617 leave the socks handshake on the inbuf until it's complete 
this paves the way for supporting socks5 and other handshakes
it also removes those pesky AP-only variables from connection_t

also hacked a fix for a bug where some streams weren't ending properly --
maybe because marked connections weren't flushing properly?


svn:r472
 2003-09-18 08:11:31 +00:00
Roger Dingledine
b97945e411 add in directory 'post' support 
svn:r471
 2003-09-17 20:09:06 +00:00
Roger Dingledine
c0f5ddcf33 fix confirmed win32 bug 
svn:r435
 2003-09-08 23:10:24 +00:00
Roger Dingledine
3fa170e11f more futzing towards tls 
not there yet


svn:r429
 2003-09-07 10:24:40 +00:00
Roger Dingledine
99035f3520 clean read_to_buf more 
svn:r428
 2003-09-05 11:25:24 +00:00
Nick Mathewson
fd20011c26 Add initial interfaces and code for TLS support. Interfaces are right; code needs work and testing. 
svn:r424
 2003-09-04 16:05:08 +00:00
Nick Mathewson
cd3467bb01 Attempt to make sockets code work right on windows. 
svn:r398
 2003-08-14 17:13:52 +00:00
Roger Dingledine
c6f70e36e0 implemented total read rate limiting 
svn:r365
 2003-07-05 07:10:34 +00:00
Roger Dingledine
dbf3435cde simplify fetch_from_buf; cull idle dnsworkers. 
svn:r354
 2003-06-25 00:31:41 +00:00
Nick Mathewson
95e5384af3 Change many files to new log_fn format 
svn:r333
 2003-06-17 22:18:26 +00:00
Roger Dingledine
cbe7be1f78 remove on-the-fly compression feature 
it wasn't working, and it was harder than we'd anticipated

not worth it.


svn:r316
 2003-06-13 10:23:42 +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
Roger Dingledine
0560008497 terminology shift: data->relay, topic->relay, topic->stream 
svn:r258
 2003-05-01 06:42:29 +00:00
Nick Mathewson
acc33c18e2 Tests for crypto; more tests for buffers 
svn:r234
 2003-04-16 15:24:09 +00:00
Nick Mathewson
1fa0fc1487 Introduce a few unit tests (from older code), refactor compression setup/teardown 
svn:r232
 2003-04-15 19:10:18 +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
b8da74d30a get rid of those nasty tabs 
svn:r216
 2003-03-24 03:00:20 +00:00
Nick Mathewson
9d03ae627d Fix message when decompressing 
svn:r214
 2003-03-19 22:51:38 +00:00
Nick Mathewson
29da03cbdc Be loud when decompressing 
svn:r213
 2003-03-19 22:47:34 +00:00
Nick Mathewson
9c263b322b Make decompression loud. 
svn:r209
 2003-03-19 22:28:52 +00:00
Nick Mathewson
6deed60bb5 Add code for end-to-end zlib compression. Still needs flow-control 
svn:r187
 2003-03-17 02:42:45 +00:00
Roger Dingledine
fb2f4a0418 pack into data cells more intelligently 
svn:r173
 2003-03-10 22:40:02 +00:00
Roger Dingledine
1768f29d7e better comments and a few patches 
svn:r164
 2003-03-04 04:36:37 +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
Roger Dingledine
827c7444f8 more robust http(ish) handling 
svn:r123
 2002-09-28 05:53:00 +00:00
Roger Dingledine
3a7f3ba348 cleanup: don't use size_t when you mean int 
size_t is what you get back from sizeof(). no more, no less.


svn:r80
 2002-08-24 04:59:21 +00:00
Roger Dingledine
d8c0d21b49 linkpadding is now off by default. 
svn:r79
 2002-08-23 06:49:43 +00:00
Roger Dingledine
267434bdea Implemented congestion control 
Servers are allowed to send 100 cells initially, and can't send more until
they receive a 'sendme' cell from that direction, indicating that they
can send 10 more cells. As it currently stands, the exit node quickly
runs out of window, and sends bursts of 10 whenever a sendme cell gets
to him. This is much much much faster (and more flexible) than the old
"give each circuit 1 kB/s and hope nothing overflows" approach.

Also divided out the connection_watch_events into stop_reading,
start_writing, etc. That way we can control them separately.


svn:r54
 2002-07-18 06:37:58 +00:00
Roger Dingledine
c951c6f186 new config files, some bugfixes 
svn:r51
 2002-07-16 02:12:58 +00:00
Roger Dingledine
117cbeeaaf Implemented link padding and receiver token buckets 
Each socket reads at most 'bandwidth' bytes per second sustained, but
can handle bursts of up to 10*bandwidth bytes.

Cells are now sent out at evenly-spaced intervals, with padding sent
out otherwise. Set Linkpadding=0 in the rc file to send cells as soon
as they're available (and to never send padding cells).

Added license/copyrights statements at the top of most files.

router->min and router->max have been merged into a single 'bandwidth'
value. We should make the routerinfo_t reflect this (want to do that,
Mat?)

As the bandwidth increases, and we want to stop sleeping more and more
frequently to send a single cell, cpu usage goes up. At 128kB/s we're
pretty much calling poll with a timeout of 1ms or even 0ms. The current
code takes a timeout of 0-9ms and makes it 10ms. prepare_for_poll()
handles everything that should have happened in the past, so as long as
our buffers don't get too full in that 10ms, we're ok.

Speaking of too full, if you run three servers at 100kB/s with -l debug,
it spends too much time printing debugging messages to be able to keep
up with the cells. The outbuf ultimately fills up and it kills that
connection. If you run with -l err, it works fine up through 500kB/s and
probably beyond. Down the road we'll want to teach it to recognize when
an outbuf is getting full, and back off.


svn:r50
 2002-07-16 01:12:15 +00:00
Roger Dingledine
c603e403df fixed a critical bug in yesterday's changes to buffers.c 
(starting to debug my OP integration)


svn:r18
 2002-07-02 06:02:15 +00:00
Roger Dingledine
b503d4c6d6 made 'app' connection be 'exit' connection 
general cleanup, particularly in buffers.c


svn:r17
 2002-06-30 07:37:49 +00:00
Roger Dingledine
9a928eeb12 Initial revision 
svn:r2
 2002-06-26 22:45:49 +00:00