Commit Graph

210 Commits

Author SHA1 Message Date
Nick Mathewson
44ad734573 Merge remote-tracking branch 'public/3122_memcmp_squashed' into bug3122_memcmp_022
Conflicts throughout.  All resolved in favor of taking HEAD and
adding tor_mem* or fast_mem* ops as appropriate.

	src/common/Makefile.am
	src/or/circuitbuild.c
	src/or/directory.c
	src/or/dirserv.c
	src/or/dirvote.c
	src/or/networkstatus.c
	src/or/rendclient.c
	src/or/rendservice.c
	src/or/router.c
	src/or/routerlist.c
	src/or/routerparse.c
	src/or/test.c
2011-05-11 16:24:29 -04:00
Nick Mathewson
59f9097d5c Hand-conversion and audit phase of memcmp transition
Here I looked at the results of the automated conversion and cleaned
them up as follows:

   If there was a tor_memcmp or tor_memeq that was in fact "safe"[*] I
   changed it to a fast_memcmp or fast_memeq.

   Otherwise if there was a tor_memcmp that could turn into a
   tor_memneq or tor_memeq, I converted it.

This wants close attention.

[*] I'm erring on the side of caution here, and leaving some things
as tor_memcmp that could in my opinion use the data-dependent
fast_memcmp variant.
2011-05-11 16:12:51 -04:00
Nick Mathewson
db7b2a33ee Automated conversion of memcmp to tor_memcmp/tor_mem[n]eq
This commit is _exactly_ the result of

perl -i -pe 's/\bmemcmp\(/tor_memcmp\(/g' src/*/*.[ch]
perl -i -pe 's/\!\s*tor_memcmp\(/tor_memeq\(/g' src/*/*.[ch]
perl -i -pe 's/0\s*==\s*tor_memcmp\(/tor_memeq\(/g' src/*/*.[ch]
perl -i -pe 's/0\s*!=\s*tor_memcmp\(/tor_memneq\(/g' src/*/*.[ch]
git checkout src/common/di_ops.[ch]
git checkout src/or/test.c
git checkout src/common/test.h
2011-05-11 16:12:51 -04:00
Nick Mathewson
cd42ae7185 Only authorities should automatically download v2 networkstatus documents
Clients and relays haven't used them since early 0.2.0.x.  The only
remaining use by authorities learning about new relays ahead of scedule;
see proposal 147 for what we intend to do about that.

We're leaving in an option (FetchV2Networkstatus) to manually fetch v2
networkstatuses, because apparently dnsel and maybe bwauth want them.

This fixes bug 3022.
2011-04-28 21:06:07 -04:00
Nick Mathewson
d38030381b Clarify some documentation and comments wrt resetting OR token buckets 2011-03-25 18:32:28 -04:00
Nick Mathewson
05887f10ff Triage the XXX022 and XXX021 comments remaining in the code
Remove some, postpone others, leave some alone.  Now the only
remaining XXX022s are ones that seem important to fix or investigate.
2011-03-25 18:32:27 -04:00
Nick Mathewson
444e46d96d Remove the "fuzzy time" code
It was the start of a neat idea, but it only got used in 3 places,
none of which really needed it.
2011-03-25 16:28:37 -04:00
Sebastian Hahn
b06617c948 Provide constant limits for all consensus params
This addresses Nick's concern about doing non-constant bounds checking
inside networkstatus_get_param().
2011-01-15 19:42:17 +01:00
Sebastian Hahn
026e7987ad Sanity-check consensus param values
We need to make sure that the worst thing that a weird consensus param
can do to us is to break our Tor (and only if the other Tors are
reliably broken in the same way) so that the majority of directory
authorities can't pull any attacks that are worse than the DoS that
they can trigger by simply shutting down.

One of these worse things was the cbtnummodes parameter, which could
lead to heap corruption on some systems if the value was sufficiently
large.

This commit fixes this particular issue and also introduces sanity
checking for all consensus parameters.
2011-01-15 19:42:17 +01:00
Sebastian Hahn
ca6c813612 Make get_net_param_from_list() static
This prepares for making the accessor method for consensus parameters
safer in the next commit.
2011-01-15 19:42:17 +01:00
Nick Mathewson
ed87738ede Merge remote branch 'origin/maint-0.2.1' into maint-0.2.2
Conflicts:
	src/or/config.c
	src/or/networkstatus.c
	src/or/rendcommon.c
	src/or/routerparse.c
	src/or/test.c
2011-01-15 12:02:55 -05:00
Nick Mathewson
115782bdbe Fix a heap overflow found by debuger, and make it harder to make that mistake again
Our public key functions assumed that they were always writing into a
large enough buffer.  In one case, they weren't.

(Incorporates fixes from sebastian)
2011-01-15 11:49:25 -05:00
Nick Mathewson
f1de329e78 Merge remote branch 'origin/maint-0.2.1' into maint-0.2.2
Conflicts:
	src/common/test.h
	src/or/test.c
2011-01-03 11:51:17 -05:00
Nick Mathewson
1a07348a50 Bump copyright statements to 2011 2011-01-03 11:50:39 -05:00
Nick Mathewson
0ac9a3df6c Fix a logic error in 98aee84. Found by boboper 2010-10-20 14:40:09 -04:00
Nick Mathewson
98aee8472f Fix a read of a freed pointer while in set_current_consensus
Found by rransom while working on issue #988.  Bugfix on
0.2.2.17-alpha.  Fixes bug 2097.
2010-10-20 13:10:20 -04:00
Nick Mathewson
1411842933 Count unknown authorities as unknown only once, not once per signature.
Do not double-report signatures from unrecognized authorities both as
"from unknown authority" and "not present".  Fixes bug 1956, bugfix on
0.2.2.16-alpha.
2010-09-20 13:33:57 -04:00
Nick Mathewson
e2b71d8841 Merge branch 'bug911' 2010-09-14 22:19:22 -04:00
Nick Mathewson
d9e0550560 Tweak some issues found by arma in bug911 review. 2010-09-14 22:10:32 -04:00
Nick Mathewson
13f684b573 Merge remote branch 'public/pretty-signature-log' 2010-09-13 15:56:46 -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
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
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
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
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
Roger Dingledine
8d588e7b1a reinit per-conn token buckets on config or consensus change 2010-08-15 04:01:42 -04:00
Roger Dingledine
b1a5888553 fix a memory leak introduced by df1ef2f0f0 2010-08-13 17:30:50 -04:00
Sebastian Hahn
05072723cb Create routerparse.h 2010-07-27 10:00:46 +02:00
Sebastian Hahn
b0cd4551ab Create relay.h 2010-07-27 10:00:45 +02:00
Sebastian Hahn
69fcbbaa89 Create networkstatus.h 2010-07-27 07:58:16 +02:00
Sebastian Hahn
85f7d54418 Create dirvote.h 2010-07-27 07:58:16 +02:00
Sebastian Hahn
7d4c027fb0 Create dirserv.h 2010-07-27 07:58:16 +02:00
Sebastian Hahn
bec1c838ca Create directory.h 2010-07-27 07:58:15 +02:00
Sebastian Hahn
0bfa34e1f6 Create control.h 2010-07-27 07:58:15 +02:00
Sebastian Hahn
2a74101f7a Create connection.h 2010-07-27 07:58:14 +02:00
Sebastian Hahn
c4f8f1316e Create config.h 2010-07-27 07:58:14 +02:00
Sebastian Hahn
21155204c6 Create circuitbuild.h 2010-07-27 07:58:13 +02:00
Sebastian Hahn
cbee969f40 Create routerlist.h 2010-07-27 07:56:25 +02:00
Sebastian Hahn
c53b6cc831 Create router.h 2010-07-27 07:56:25 +02:00
Nick Mathewson
d461799f0b Fix getinfo_helper_networkstatus to return 0 on question-not-known
It erroneously returned -1 instead, which made it say "Internal error"
rather than "Unrecognized key."
2010-07-18 17:13:25 +02:00
Nick Mathewson
0b4b51314f Make the controller act more usefully when GETINFO fails
Right now it says "552 internal error" because there's no way for
getinfo_helper_*() countries to specify an error message.  This
patch changes the getinfo_helper_*() interface, and makes most of the
getinfo helpers give useful error messages in response to failures.

This should prevent recurrences of bug 1699, where a missing GeoIPFile
line in the torrc made GETINFO ip-to-county/* fail in a "not obvious
how to fix" way.
2010-07-18 17:05:58 +02:00
Mike Perry
9d5d0f040f Alter how guard flags are chosen.
V3 authorities no longer decide not to vote on Guard+Exit. The bandwidth
weights should take care of this now.

Also, lower the max threshold for WFU to 0.98, to allow more nodes to become
guards.
2010-07-14 20:49:19 -07:00
Roger Dingledine
c29977ce00 simplify a path in networkstatus 2010-04-15 10:13:35 -04:00
Nick Mathewson
b006e3279f Merge remote branch 'origin/maint-0.2.1'
Conflicts:
	src/common/test.h
	src/or/test.c
2010-02-27 17:16:31 -05:00
Nick Mathewson
c3e63483b2 Update Tor Project copyright years 2010-02-27 17:14:21 -05:00
Mike Perry
f4d6315afa Remove misc unnecessary newlines found by new check. 2010-02-22 16:52:11 -08:00
Mike Perry
df1ef2f0f0 Add parsing+verification for bw weight values. 2010-02-22 16:52:11 -08:00
Mike Perry
f9d40649fe Perform calculation of consensus bandwidth weights.
Also add bwweightscale consensus param. Use it as our
fixed-point calculation width.
2010-02-22 16:52:11 -08:00
Mike Perry
2258125e1a Move CBT params into consensus. 2010-02-18 09:08:31 -08:00