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6852 commits

Author SHA1 Message Date
Nick Mathewson
286f407cd2 Merge remote branch 'sebastian/bug1525' 2010-09-13 01:36:31 -04:00
Nick Mathewson
126832a3f7 Merge branch 'bug1138' 2010-09-12 21:41:45 -04:00
Nick Mathewson
cc0efa8084 Make authorities download consensuses if appropriate
An authority should never download a consensus if it has a live one,
but when it doesn't, it should admit that it's not going to get one,
and see if anybody else can give it one.

Fixes 1300, fix on 0.2.0.9-alpha
2010-09-12 21:41:15 -04:00
Nick Mathewson
5634e03302 Clean up a couple more bug1138 issues mentioned by roger on code review 2010-09-12 21:12:17 -04:00
Robert Hogan
22ab997e83 Handle null conn->requested_resource rather than assert
Per arma's comments in bug1138
2010-09-12 14:10:16 +01:00
Roger Dingledine
b4942e3435 fix regression introduced by 1a65bdd2
noticed while reviewing hoganrobert/bug1138
2010-09-12 00:20:00 -04:00
Nick Mathewson
fca222f0ce be more consistent in using streamid_t 2010-09-08 10:53:19 -04:00
Nick Mathewson
aa42f941dc Merge branch 'bug1653' 2010-09-08 10:49:24 -04:00
Nick Mathewson
669fd05ed8 Merge remote branch 'origin/maint-0.2.1' 2010-09-08 10:28:41 -04:00
Nick Mathewson
2bc82324d5 Remove a needless keep_open_until_flushed 2010-09-08 10:23:29 -04:00
Sebastian Hahn
303beead53 Kill warn when picking bridges without bw weight
Bridges and other relays not included in the consensus don't
necessarily have a non-zero bandwidth capacity. If all our
configured bridges had a zero bw capacity we would warn the
user. Change that.
2010-09-06 18:44:11 +02:00
Nick Mathewson
edc9256e95 Merge remote branch 'public/win_unicode_fixes' 2010-09-06 10:06:07 -04:00
Nick Mathewson
2920d88667 Base our expected bw accounting usage on time before soft limit
Previously, we were also considering the time spent in
soft-hibernation.  If this was a long time, we would wind up
underestimating our bandwidth by a lot, and skewing our wakeup time
towards the start of the accounting interval.

This patch also makes us store a few more fields in the state file,
including the time at which we entered soft hibernation.

Fixes bug 1789.  Bugfix on 0.0.9pre5.
2010-09-03 14:29:17 -04:00
Nick Mathewson
d0acaac781 Use a more sophisticated soft-hibernation-limit calculation
This should help address bug 1789.
2010-09-03 14:09:55 -04:00
Nick Mathewson
17ebddbbdc Remove an obsolete comment from hibernate.c 2010-09-03 14:09:55 -04:00
Nick Mathewson
80b3de8753 Tolerate a little skew in accounting intervals.
This will make changes for DST still work, and avoid double-spending
bytes when there are slight changes to configurations.

Fixes bug 1511; the DST issue is a bugfix on 0.0.9pre5.
2010-09-03 12:19:17 -04:00
Nick Mathewson
4d2e9974f9 Close a non-open OR connection *only* after KeepalivePeriod.
When we introduced the code to close non-open OR connections after
KeepalivePeriod had passed, we replaced some code that said
    if (!connection_is_open(conn)) {
     /* let it keep handshaking forever */
    } else if (do other tests here) {
      ...
with new code that said
    if (!connection_is_open(conn) && past_keepalive) {
     /* let it keep handshaking forever */
    } else if (do other tests here) {
      ...

This was a mistake, since it made all the other tests start applying
to non-open connections, thus causing bug 1840, where non-open
connections get closed way early.

Fixes bug 1840.  Bugfix on 0.2.1.26 (commit 67b38d50).
2010-09-03 11:32:35 -04:00
Nick Mathewson
b2473357f2 Launch reachability tests for routers whose IP or ORPort change
Implements #1899, suggested by Sebastian.  Depends on #911 fix.
2010-09-03 10:53:29 -04:00
Nick Mathewson
296a7d8388 Fix a missing stream_id argument; found by "tracktor" 2010-09-03 10:26:50 -04:00
Robert Hogan
5799cdd9d3 Nick points out:
tor_assert(!conn->_base.purpose == DIR_PURPOSE_FETCH_EXTRAINFO)
!=
tor_assert(conn->_base.purpose != DIR_PURPOSE_FETCH_EXTRAINFO)
!!
2010-09-02 22:17:43 +01:00
Robert Hogan
2086588efe Amend per Sebastian's comments:
- Move checks for extra_info to callers
 - Change argument name from failed to descs
 - Use strlen("fp/") instead of a magic number
 - I passed on the suggestion to rename functions from *_failed() to
   *_handle_failure(). There are a lot of these so for now just follow
   the house style.
2010-09-02 22:17:27 +01:00
Nick Mathewson
bfa1962d80 Complicate the rules on WARN vs INFO in consensus verification
It's normal when bootstrapping to have a lot of different certs
missing, so we don't want missing certs to make us warn... unless
the certs we're missing are ones that we've tried to fetch a couple
of times and failed at.

May fix bug 1145.
2010-09-02 16:46:03 -04:00
Nick Mathewson
f89323afda Fix behavior of adding a cell to a blocked queue.
We frequently add cells to stream-blocked queues for valid reasons
that don't mean we need to block streams.  The most obvious reason
is if the cell arrives over a circuit rather than from an edge: we
don't block circuits, no matter how full queues get.  The next most
obvious reason is that we allow CONNECTED cells from a newly created
stream to get delivered just fine.

This patch changes the behavior so that we only iterate over the
streams on a circuit when the cell in question came from a stream,
and we only block the stream that generated the cell, so that other
streams can still get their CONNECTEDs in.
2010-09-02 15:26:17 -04:00
Nick Mathewson
2081740317 Merge branch 'ratelim' 2010-08-31 12:59:36 -04:00
Nick Mathewson
285addbd94 Fix some issues in rate-limiting noticed by Sebastian 2010-08-31 12:52:11 -04:00
Sebastian Hahn
2af6aadfe9 Fix a compile warning on OpenBSD 2010-08-22 13:58:23 +02:00
Sebastian Hahn
33ae3f4b5c Allow clients to use relays as bridges 2010-08-20 23:45:00 +02:00
Nick Mathewson
c0c7868250 Make the windows build succeed with or without -DUNICODE enabled.
This should keep WinCE working (unicode always-on) and get Win98
working again (unicode never-on).

There are two places where we explicitly use ASCII-only APIs, still:
in ntmain.c and in the unit tests.

This patch also fixes a bug in windoes tor_listdir that would cause
the first file to be listed an arbitrary number of times that was
also introduced with WinCE support.

Should fix bug 1797.
2010-08-20 13:40:01 -04:00
Sebastian Hahn
219f7415d1 Warn for bad combination of cookie options
Setting CookieAuthFileGroupReadable but without setting CookieAuthFile makes
no sense, because unix directory permissions for the data directory prevent
the group from accessing the file anyways.
2010-08-20 02:45:10 +02:00
Nick Mathewson
69deb22f34 Fix up compilation on windows. 2010-08-19 14:59:44 -04:00
Nick Mathewson
6f9f1f3324 Make the "2 unknown, 7 missing key..." messages easier to understand
This patch should fix the cases we care about for bugs 1290 and 1145.

     "30-56-99 are correct. Limited 4 and 8 are missing".
2010-08-19 11:13:35 -04:00
Roger Dingledine
c1260cb6ec delay geoip stats even more for relays-turned-bridges 2010-08-18 16:12:44 -04:00
Nick Mathewson
ba9c1275c4 Add a generic rate-limited log mechanism, and use it in a few places
Incidentally fixes bug 1042.
2010-08-18 15:55:49 -04:00
Nick Mathewson
8782dcf6a2 Detect if we try to put a cell onto a supposedly blocked cell queue.
When this happens, run through the streams on the circuit and make
sure they're all blocked.  If some aren't, that's a bug: block them
all and log it!  If they all are, where did the cell come from?  Log
it!

(I suspect that this actually happens pretty frequently, so I'm making
these log messages appear at INFO.)
2010-08-18 14:33:41 -04:00
Nick Mathewson
80391b88a5 Decide whether to ignore SENDMEs based on streams_blocked, not queue size 2010-08-18 14:33:41 -04:00
yetonetime
4dd3245abb Avoid over-filling cell queues when we receive a SENDME
Do not start reading on exit streams when we get a SENDME unless we
have space in the appropriate circuit's cell queue.

Draft fix for bug 1653.

(commit message by nickm)
2010-08-18 14:33:37 -04:00
Nick Mathewson
8c528bc320 Merge commit 'origin/maint-0.2.1'
Conflicts:
	src/or/reasons.c
2010-08-18 13:48:39 -04:00
Nick Mathewson
5926d9cfcc Move code for launching tests out of router_add_to_routerlist()
router_add_to_routerlist() is supposed to be a nice minimal function
that only touches the routerlist structures, but it included a call to
dirserv_single_reachability_test().

We have a function that gets called _after_ adding descriptors
successfully: routerlist_descriptors_added.  This patch moves the
responsibility for testing there.

Because the decision of whether to test or not depends on whether
there was an old routerinfo for this router or not, we have to first
detect whether we _will_ want to run the tests if the router is added.
We make this the job of
routers_update_status_from_consensus_networkstatus().

Finally, this patch makes the code notice if a router is going from
hibernating to non-hibernating, and if so causes a reachability test
to get launched.
2010-08-18 13:36:09 -04:00
Nick Mathewson
23fdf0b30f Allow some skew in checking when a router said it was hibernating
This solves the problem Roger noted as:
   What if the router has a clock that's 5 minutes off, so it
   publishes a descriptor for 5 minutes in the future, and we test it
   three minutes in. In this edge case, we will continue to advertise
   it as Running for the full 45 minute period.
2010-08-18 11:40:22 -04:00
Nick Mathewson
a4c5287e1b Clarify AssumeReachable semantics wrt hibernation 2010-08-18 11:31:19 -04:00
Nick Mathewson
5063a1c538 Add some braces to make arma happy 2010-08-18 11:28:51 -04:00
Sebastian Hahn
78e4aa63fb Backport END_STREAM_REASON_NOROUTE for client use.
(Partial backport of 150ed553df, 161b275028, and 4c948ffd6.)
2010-08-18 11:12:32 -04:00
Nick Mathewson
a509dbba50 Merge commit 'karsten/dirbytes2'
Conflicts:
	src/or/rephist.h
2010-08-18 10:06:14 -04:00
Karsten Loesing
58b6195455 Correctly report written bytes on linked connections. 2010-08-18 13:54:41 +02:00
Karsten Loesing
db94b7f46e Count bytes we spend on answering directory requests. 2010-08-18 13:54:41 +02:00
Sebastian Hahn
d5c83f2014 Remove unused function declarations
Also remove some #if 0'd code from the unit tests for buffers. The
code was killed in e6794e5808 (5 years
ago), and is now broken anyways.
2010-08-17 23:49:39 +02:00
Nick Mathewson
5ffe105598 Merge branch 'maint-0.2.1'
Resolved conflict in
	src/or/networkstatus.c
2010-08-17 12:07:19 -04:00
Nick Mathewson
6f58481335 Scale CONSENSUS_MIN_SECONDS_BEFORE_CACHING by voting interval
If the voting interval was short enough, the two-minutes delay
of CONSENSUS_MIN_SECONDS_BEFORE_CACHING would confuse bridges
to the point where they would assert before downloading a consensus.
It it was even shorter (<4 minutes, I think), caches would
assert too.  This patch fixes that by having replacing the
two-minutes value with MIN(2 minutes, interval/16).

Bugfix for 1141; the cache bug could occur since 0.2.0.8-alpha, so
I'm calling this a bugfix on that.  Robert Hogan diagnosed this.
Done as a patch against maint-0.2.1, since it makes it hard to
run some kinds of testing networks.
2010-08-17 11:55:39 -04:00
Robert Hogan
d6744d611f Fall back to direct descriptor request to bridges when
requests to authorities fail due to a network error.

Bug#1138
"When a Tor client starts up using a bridge, and UpdateBridgesFromAuthority
is set, Tor will go to the authority first and look up the bridge by
fingerprint. If the bridge authority is filtered, Tor will never notice that
the bridge authority lookup failed. So it will never fall back."

Add connection_dir_bridge_routerdesc_failed(), a function for unpacking
the bridge information from a failed request, and ensure
connection_dir_request_failed() calls it if the failed request
was for a bridge descriptor.

Test:

1. for ip in `grep -iR 'router ' cached-descriptors|cut -d ' ' -f 3`;
do sudo iptables -A OUTPUT -p tcp -d $ip -j DROP; done
2. remove all files from user tor directory
3. Put the following in torrc:

UseBridges 1
UpdateBridgesFromAuthority 1
Bridge 85.108.88.19:443 7E1B28DB47C175392A0E8E4A287C7CB8686575B7

4. Launch tor - it should fall back to downloading descriptors
   directly from the bridge.

Initial patch reviewed and corrected by mingw-san.
2010-08-16 21:15:49 +01:00
Nick Mathewson
bf8d66364f Merge commit 'public/warn1125' 2010-08-16 00:27:05 -04:00