Commit Graph

7375 Commits

Author SHA1 Message Date
Nick Mathewson
cf8bffa359 Discard all cells on a marked connection
Fix for bug 4299
2011-10-28 17:04:15 -04:00
Sebastian Hahn
f6b1dc2805 Fix typo, spotted by tmpname0901. Thanks! 2011-10-28 09:52:24 -04:00
Robert Ransom
4684ced1b3 Add option to give guard flag to relays without the CVE-2011-2768 fix
This way, all of the DA operators can upgrade immediately, without nuking
every client's set of entry guards as soon as a majority of them upgrade.

Until enough guards have upgraded, a majority of dirauths should set this
config option so that there are still enough guards in the network. After
a few days pass, all dirauths should use the default.
2011-10-26 23:56:47 +02:00
Robert Ransom
00fffbc1a1 Don't give the Guard flag to relays without the CVE-2011-2768 fix 2011-10-26 23:42:39 +02:00
Robert Ransom
4d0f152aad Make tor_version_same_series non-static 2011-10-26 23:36:30 +02:00
Sebastian Hahn
df05e5ef4d Merge branch 'maint-0.2.1_secfix' into maint-0.2.2_secfix
Conflicts:
	src/or/connection_or.c
2011-10-26 23:30:27 +02:00
Robert Ransom
a74e7fd40f Reject create cells on outgoing OR connections from bridges 2011-10-26 23:21:14 +02:00
Robert Ransom
c05bb53508 Mark which OR connections are outgoing 2011-10-26 23:21:11 +02:00
Robert Ransom
af12c39d6d Don't use any OR connection which sent us a CREATE_FAST cell for an EXTEND
Fix suggested by Nick Mathewson.
2011-10-26 23:20:56 +02:00
Roger Dingledine
a68867b150 manually backport a5232e0c4c 2011-10-26 17:11:52 -04:00
Roger Dingledine
cecc5b7aa1 stop asserting at boot
The patch for 3228 made us try to run init_keys() before we had loaded
our state file, resulting in an assert inside init_keys. We had moved
it too early in the function.

Now it's later in the function, but still above the accounting calls.
2011-10-26 22:09:44 +02:00
Nick Mathewson
55d9e4b8ba Reinit keys at the start of options_act().
Previously we did this nearer to the end (in the old_options &&
transition_affects_workers() block).  But other stuff cares about
keys being consistent with options... particularly anything which
tries to access a key, which can die in assert_identity_keys_ok().

Fixes bug 3228; bugfix on 0.2.2.18-alpha.

Conflicts:

	src/or/config.c
2011-10-26 22:09:44 +02:00
Robert Ransom
62c29a93ba Don't crash a bridge authority on SIGHUP if it's not in the consensus
Fixes bug 2572.
2011-10-26 22:09:44 +02:00
Sebastian Hahn
9082898944 Fix assert for relay/bridge state change
When we added support for separate client tls certs on bridges in
a2bb0bfdd5 we forgot to correctly initialize this when changing
from relay to bridge or vice versa while Tor is running. Fix that
by always initializing keys when the state changes.

Fixes bug 2433.

Conflicts:

	src/or/config.c
2011-10-26 22:09:44 +02:00
Nick Mathewson
4a1a89be0c Merge remote-tracking branch 'public/cov_run224_022' into maint-0.2.2 2011-10-26 11:07:28 -04:00
Nick Mathewson
d0a91386e5 Don't crash when accountingmax is set in non-server Tors
We use a hash of the identity key to seed a prng to tell when an
accounting period should end.  But thanks to the bug998 changes,
clients no longer have server-identity keys to use as a long-term seed
in accounting calculations.  In any case, their identity keys (as used
in TLS) were never never fixed.  So we can just set the wakeup time
from a random seed instead there.  Still open is whether everybody
should be random.

This patch fixes bug 2235, which was introduced in 0.2.2.18-alpha.

Diagnosed with help from boboper on irc.
2011-10-26 14:20:47 +02:00
Sebastian Hahn
3a890b3b70 Properly refcount client_identity_key
In a2bb0bf we started using a separate client identity key. When we are
in "public server mode" (that means not a bridge) we will use the same
key. Reusing the key without doing the proper refcounting leads to a
segfault on cleanup during shutdown. Fix that.

Also introduce an assert that triggers if our refcount falls below 0.
That should never happen.
2011-10-26 14:17:01 +02:00
Nick Mathewson
dc557e8164 Add some asserts to get_{tlsclient|server}_identity_key
We now require that:
  - Only actual servers should ever call get_server_identity_key
  - If you're being a client or bridge, the client and server keys should
    differ.
  - If you're being a public relay, the client and server keys
    should be the same.
2011-10-26 14:16:54 +02:00
Nick Mathewson
2a2301e411 Rename get_client_identity_key to get_tlsclient_identity_key 2011-10-26 14:16:34 +02:00
Robert Ransom
59e565e2a2 Maintain separate server and client identity keys when appropriate.
Fixes a bug described in ticket #988.

Conflicts:

	src/or/main.c
	src/or/router.c
2011-10-26 14:16:20 +02:00
Robert Ransom
9976df9e56 Maintain separate server and client TLS contexts.
Fixes bug #988.

Conflicts:

	src/or/main.c
	src/or/router.c
2011-10-26 14:13:55 +02:00
Robert Ransom
8781640111 Refactor tor_tls_context_new:
* Make tor_tls_context_new internal to tortls.c, and return the new
  tor_tls_context_t from it.

* Add a public tor_tls_context_init wrapper function to replace it.

Conflicts:

	src/or/main.c
	src/or/router.c
2011-10-26 14:08:36 +02:00
Robert Ransom
07ab559a8e Add public_server_mode function. 2011-10-26 14:03:43 +02:00
Nick Mathewson
3cb79a0286 Merge remote-tracking branch 'rransom-tor/bug4251-022' into maint-0.2.2 2011-10-20 00:01:58 -04:00
Nick Mathewson
5aa45ed6af Fix crash when changing node restrictions with DNS lookup in progress
Fixes bug 4259, bugfix on 0.2.2.25-alpha.  Bugfix by "Tey'".

Original message by submitter:

  Changing nodes restrictions using a controller while Tor is doing
  DNS resolution could makes Tor crashes (on WinXP at least). The
  problem can be repeated by trying to reach a non-existent domain
  using Tor:

    curl --socks4a 127.0.0.1:9050 inexistantdomain.ext

  .. and changing the ExitNodes parameter through the control port
  before Tor returns a DNS resolution error (of course, the following
  command won't work directly if the control port is password
  protected):

    echo SETCONF ExitNodes=TinyTurtle | nc -v 127.0.0.1 9051

  Using a non-existent domain is needed to repeat the issue so that
  Tor takes a few seconds for resolving the domain (which allows us to
  change the configuration). Tor will crash while processing the
  configuration change.

  The bug is located in the addressmap_clear_excluded_trackexithosts
  method which iterates over the entries of the addresses map in order
  to check whether the changes made to the configuration will impact
  those entries. When a DNS resolving is in progress, the new_adress
  field of the associated entry will be set to NULL. The method
  doesn't expect this field to be NULL, hence the crash.
2011-10-19 23:14:05 -04:00
Robert Ransom
739c21e97b Free rend_data and intro_key when extra intro circs become general-purpose 2011-10-18 07:08:02 -07:00
Robert Ransom
9648f034c0 Update documentation comment for rend_client_reextend_intro_circuit
One of its callers assumes a non-zero result indicates a permanent failure
(i.e. the current attempt to connect to this HS either has failed or is
 doomed).  The other caller only requires that this function's result
never equal -2.

Bug reported by Sebastian Hahn.
2011-10-10 05:33:53 -07:00
Robert Ransom
274b25de12 Don't launch a useless circuit in rend_client_reextend_intro_circuit
Fixes bug 4212.  Bug reported by katmagic and found by Sebastian.
2011-10-10 03:05:19 -07:00
Nick Mathewson
ca597efb22 Merge remote-tracking branch 'karsten/feature3951' into maint-0.2.2 2011-10-07 16:46:50 -04:00
warms0x
6d027a3823 Avoid running DNS self-tests if we're operating as a bridge 2011-10-07 12:18:26 -04:00
Nick Mathewson
2412e0e402 Check return of init_keys() ip_address_changed: fix Coverity CID 484 2011-10-06 14:13:09 -04:00
Karsten Loesing
9dfb884522 Turn on directory request statistics by default.
Change the default values for collecting directory request statistics and
inlcuding them in extra-info descriptors to 1.

Don't break if we are configured to collect directory request or entry
statistics and don't have a GeoIP database. Instead, print out a notice
and skip initializing the affected statistics code.

This is the cherry-picked 499661524b.
2011-10-05 08:03:31 +02:00
Roger Dingledine
ff8aba7053 bridges should use create_fast cells for their own circuits
fixes bug 4124, as noticed in bug 4115
2011-09-28 15:35:27 -04:00
Roger Dingledine
0b5d2646d5 bug 4115: make bridges use begindir for their dir fetches
removes another avenue for enumerating bridges.
2011-09-28 14:50:43 -04:00
Roger Dingledine
1c2e4d1336 trivial whitespace changes, take two 2011-09-24 22:46:21 -04:00
Nick Mathewson
c42a1886cc Trivial whitespace fixes 2011-09-24 22:15:59 -04:00
Tom Lowenthal
5835acc6f9 Ticket #4063 - change circuit build timeout log entries from NOTICE to INFO 2011-09-24 22:12:40 -04:00
Roger Dingledine
4a351b4b9e Merge branch 'maint-0.2.1' into maint-0.2.2
Conflicts:
	src/or/main.c
	src/or/router.c
2011-09-13 18:27:13 -04:00
Roger Dingledine
62ec584a30 Generate our ssl session certs with a plausible lifetime
Nobody but Tor uses certs on the wire with 2 hour lifetimes,
and it makes us stand out. Resolves ticket 4014.
2011-09-13 18:24:45 -04:00
Robert Ransom
8ea6d29fe4 Demote 'INTRODUCE2 cell is too {old,new}' message to info level 2011-09-10 21:56:05 -04:00
Robert Ransom
b10735903b Demote HS 'replay detected' log message for DH public keys to info level 2011-09-10 21:56:05 -04:00
Robert Ransom
07a5cf285a Describe rend_service_descriptor_t more completely 2011-09-10 19:09:01 -04:00
Robert Ransom
aa900b17ca Describe rend_intro_point_t more completely 2011-09-10 19:05:53 -04:00
Robert Ransom
c621e52883 Fix log message typo. 2011-09-10 16:15:52 -04:00
Nick Mathewson
b0695c11eb Merge remote-tracking branch 'public/gcc-295-fix' into maint-0.2.2 2011-09-09 12:54:27 -04:00
Nick Mathewson
4467799f45 Merge remote-tracking branch 'public/enhance_replay_detection' into maint-0.2.2 2011-09-09 12:53:45 -04:00
Nick Mathewson
cb9226bcdb Check for replays in PK-encrypted part of intro cell, not just in the g^x value 2011-09-09 12:49:47 -04:00
Nick Mathewson
dfa6cde4d4 Merge remote-tracking branch 'public/bug2649_squashed' into maint-0.2.2 2011-09-07 14:43:06 -04:00
Nick Mathewson
2bf0e7479b Fix assertion in addressmap_clear_excluded_trackexithosts
Fixes bug 3923; bugfix on 0.2.2.25-alpha; bugfix from 'laruldan' on trac.
2011-09-06 20:26:20 -04:00
Nick Mathewson
393e4fb5b5 Use %f with printf-style formatting, not %lf
For printf, %f and %lf are synonymous, since floats are promoted to
doubles when passed as varargs.  It's only for scanf that we need to
say "%lf" for doubles and "%f" for floats.

Apparenly, some older compilers think it's naughty to say %lf and like
to spew warnings about it.

Found by grarpamp.
2011-08-30 20:44:42 -04:00