Commit Graph

1022 Commits

Author SHA1 Message Date
teor (Tim Wilson-Brown)
514f0041d1
Avoid disclosing exit IP addresses in exit policies by default
From 0.2.7.2-alpha onwards, Exits would reject all the IP addresses
they knew about in their exit policy. But this may have disclosed
addresses that were otherwise unlisted.

Now, only advertised addresses are rejected by default by
ExitPolicyRejectPrivate. All known addresses are only rejected when
ExitPolicyRejectLocalInterfaces is explicitly set to 1.
2016-07-01 15:37:13 +10:00
Nick Mathewson
8917c4f19f A little more specificity in documentation for getinfo download/ stuff
Also, a const.
2016-06-30 13:42:38 -04:00
Andrea Shepard
657eaee6ae Expose GETINFO download status statics for test suite and make things mockable 2016-06-29 05:55:42 +00:00
Andrea Shepard
c692900728 Add bridge descriptor download status queries to GETINFO 2016-06-29 05:55:42 +00:00
Andrea Shepard
8798ca4be2 Add router descriptor download status queries to GETINFO 2016-06-29 05:55:42 +00:00
Andrea Shepard
18c6e13993 Expose authority certificate download statuses on the control port 2016-06-29 05:55:42 +00:00
Andrea Shepard
8cf9fe5ba6 Expose consensus download statuses on the control port 2016-06-27 16:38:37 +00:00
Nick Mathewson
2f75b34dce Patch from dgoulet: fix a base16 problem that manifested w stem 2016-06-20 13:37:45 -04:00
nikkolasg
568dc27a19 Make base16_decodes return number of decoded bytes
base16_decodes() now returns the number of decoded bytes. It's interface
changes from returning a "int" to a "ssize_t". Every callsite now checks the
returned value.

Fixes #14013

Signed-off-by: David Goulet <dgoulet@torproject.org>
2016-06-20 08:44:58 -04:00
Nick Mathewson
4f1a04ff9c Replace nearly all XXX0vv comments with smarter ones
So, back long ago, XXX012 meant, "before Tor 0.1.2 is released, we
had better revisit this comment and fix it!"

But we have a huge pile of such comments accumulated for a large
number of released versions!  Not cool.

So, here's what I tried to do:

  * 0.2.9 and 0.2.8 are retained, since those are not yet released.

  * XXX+ or XXX++ or XXX++++ or whatever means, "This one looks
    quite important!"

  * The others, after one-by-one examination, are downgraded to
    plain old XXX.  Which doesn't mean they aren't a problem -- just
    that they cannot possibly be a release-blocking problem.
2016-05-30 16:18:16 -04:00
Nick Mathewson
1e5ad15688 Merge remote-tracking branch 'arma/task19035-fixedup' 2016-05-27 13:22:16 -04:00
Roger Dingledine
11d52a449c Disable GET /tor/bytes.txt and GETINFO dir-usage
Remove support for "GET /tor/bytes.txt" DirPort request, and
"GETINFO dir-usage" controller request, which were only available
via a compile-time option in Tor anyway.

Feature was added in 0.2.2.1-alpha. Resolves ticket 19035.
2016-05-27 11:15:21 -04:00
Nick Mathewson
6382cd93cb Merge branch 'maint-0.2.8' 2016-05-17 11:10:20 -04:00
Nick Mathewson
548d14247e Merge remote-tracking branch 'arma/bug18616-v4' into maint-0.2.8 2016-05-17 10:48:12 -04:00
Roger Dingledine
06031b441e touchups and refactorings on bug 18616 branch
no behavior changes
2016-05-16 17:43:47 -04:00
Nick Mathewson
33d3572a1d Merge branch 'feature15588_squashed' 2016-05-09 14:41:36 -04:00
John Brooks
dcc11674db Add client auth for ADD_ONION services 2016-05-09 14:28:58 -04:00
John Brooks
d15354c73b Add client auth to rend_service_add_ephemeral 2016-05-09 14:28:08 -04:00
s0rlxmh0
054d939853 (cherry-picked by nickm, with changes file from isis.) 2016-05-02 14:01:36 -04:00
Nick Mathewson
addd181721 Fix memory leak in TestingEnableCellStatsEvent
Only when we were actually flushing the cell stats to a controller
would we free them.  Thus, they could stay in RAM even after the
circuit was freed (eg if we didn't have any controllers).

Fixes bug 18673; bugfix on 0.2.5.1-alpha.
2016-03-28 11:12:15 -04:00
Nick Mathewson
57699de005 Update the copyright year. 2016-02-27 18:48:19 +01:00
David Goulet
13a8571834 Add onion address to the HS_DESC UPLOADED event
Fixes #16023

Signed-off-by: David Goulet <dgoulet@ev0ke.net>
2016-02-17 15:30:46 -05:00
teor (Tim Wilson-Brown)
1401117ff2 Return NULL from extend_info_from_node if the node has no allowed address
Modify callers to correctly handle these new NULL returns:
* fix assert in onion_extend_cpath
* warn and discard circuit in circuit_get_open_circ_or_launch
* warn, discard circuit, and tell controller in handle_control_extendcircuit
2016-01-29 07:16:32 +11:00
cypherpunks
824a6a2a90 Replace usage of INLINE with inline
This patch was generated using;

  sed -i -e "s/\bINLINE\b/inline/" src/*/*.[ch] src/*/*/*.[ch]
2015-12-15 11:34:00 -05:00
Nick Mathewson
0a701e5377 More fixes/debugging attempts for 17659 2015-11-27 12:54:57 -05:00
Nick Mathewson
e5754c42d1 Merge branch 'bug17686_v2_027' 2015-11-25 22:33:49 -05:00
Nick Mathewson
ddcbe26474 Now that crypto_rand() cannot fail, it should return void. 2015-11-25 22:29:59 -05:00
teor (Tim Wilson-Brown)
10a6390deb Add controller getinfo exit-policy/reject-private
exit-policy/reject-private lists the reject rules added by
ExitPolicyRejectPrivate. This makes it easier for stem to
display exit policies.

Add unit tests for getinfo exit-policy/*.

Completes ticket #17183. Patch by "teor".
2015-11-20 10:48:19 -05:00
Donncha O'Cearbhaill
d47a4aec66 Separate lookup function for service rend cache
Performing lookups in both the client and service side descriptor
caches from the same rend_cache_lookup_entry() function increases the
risk of accidental API misuse.

I'm separating the lookup functions to keep the caches distinct.
2015-09-08 12:34:05 +02:00
Donncha O'Cearbhaill
293410d138 Add replica number to HS_DESC CREATED event
Including the replica number in the HS_DESC CREATED event provides
more context to a control port client. The replica allows clients
to more easily identify each replicated descriptor from the
independantly output control events.
2015-09-08 12:34:05 +02:00
Donncha O'Cearbhaill
5dc2cbafef Specify descriptor cache type in rend_cache_lookup_entry()
Adds an Enum which represents the different types of rendezvous
descriptor caches. This argument is passed in each call to
rend_cache_lookup_entry() to specify lookup in the client-side or
service-side descriptor caches.
2015-09-08 12:34:05 +02:00
Donncha O'Cearbhaill
580673cf94 Add GETINFO hs/service/desc/id/ control command
Adds a control command to fetch a local service descriptor from the
service descriptor cache. The local service descriptor cache is
referenced by the onion address of the service.

This control command is documented in the control spec.
2015-09-08 12:33:56 +02:00
Donncha O'Cearbhaill
af3be650e3 Add a HS_DESC CREATED control event
The HS_DESC CREATED event should be emmited when a new service descriptor
is generated for a local rendevous service. This event is documented
in the control spec.

This commit resolves ticket #16291.
2015-08-25 17:30:02 +02:00
Donncha O'Cearbhaill
1a75e6da00 Create a service-side descriptor cache
Adds a service descriptor cache which is indexed by service ID. This
descriptor cache is used to store service descriptors generated by a
local rendevous service.

The service-side cach can be queried by calling rend_cache_lookup_entry()
with the 'service' argument set to 1.
2015-08-25 16:44:31 +02:00
Nick Mathewson
3b6d2f9bf4 Merge branch 'workqueue_squashed' 2015-08-21 10:37:01 -04:00
Sebastian Hahn
5cf24ff3af Fix a bunch of check-spaces complaints 2015-08-21 10:36:53 -04:00
Nick Mathewson
b58dfba76f Rename EVENT_SIGNAL -> EVENT_GOT_SIGNAL
This avoids a conflict with a macro decl from libevent 1.x.

Fixes bug 16867; bug not in any released Tor.
2015-08-20 18:42:20 -04:00
Nick Mathewson
eafae7f677 Merge branch 'decouple_controller_events_squashed' 2015-08-18 08:56:31 -04:00
Nick Mathewson
9ec94f1d22 Use thread-local storage to block event_queue recursion. 2015-08-18 08:56:23 -04:00
Nick Mathewson
e2a6a7ec61 Multithreading support for event-queue code. 2015-08-18 08:56:23 -04:00
Nick Mathewson
81f3572467 Refactor initialization logic for control-event-queue
This puts the init logic in a separate function, which we will need
once we have locking.
2015-08-18 08:56:23 -04:00
Nick Mathewson
60c8fbf1ff Remove obsolete event_format_t
We used to use this when we had some controllers that would accept
long names and some that wouldn't.  But it's been obsolete for a
while, and it's time to strip it out of the code.
2015-08-18 08:56:23 -04:00
Nick Mathewson
bab221f113 Refactor our logic for sending events to controllers
Previously we'd put these strings right on the controllers'
outbufs. But this could cause some trouble, for these reasons:

  1) Calling the network stack directly here would make a huge portion
     of our networking code (from which so much of the rest of Tor is
     reachable) reachable from everything that potentially generated
     controller events.

  2) Since _some_ events (EVENT_ERR for instance) would cause us to
     call connection_flush(), every control_event_* function would
     appear to be able to reach even _more_ of the network stack in
     our cllgraph.

  3) Every time we generated an event, we'd have to walk the whole
     connection list, which isn't exactly fast.

This is an attempt to break down the "blob" described in
http://archives.seul.org/tor/dev/Mar-2015/msg00197.html -- the set of
functions from which nearly all the other functions in Tor are
reachable.

Closes ticket 16695.
2015-08-18 08:55:28 -04:00
Nick Mathewson
c7c73f1178 Change lost_owning_controller() to call activate_signal().
Closes ticket 16788.
2015-08-13 09:17:41 -04:00
Nick Mathewson
f4f0b43268 Try to decouple process_signal() from anything not event-driven
This needs debugging; it currently breaks the stem tests.
2015-08-12 11:25:00 -04:00
David Goulet
8c83e8cec0 Add get_max_sockets() and remove dead code
The control port was using set_max_file_descriptors() with a limit set to 0
to query the number of maximum socket Tor can use. With the recent changes
to that function, a check was introduced to make sure a user can not set a
value below the amount we reserved for non socket.

This commit adds get_max_sockets() that returns the value of max_sockets so
we can stop using that "setter" function to get the current value.

Finally, the dead code is removed that is the code that checked for limit
equal to 0. From now on, set_max_file_descriptors() should never be used
with a limit set to 0 for a valid use case.

Fixes #16697

Signed-off-by: David Goulet <dgoulet@ev0ke.net>
2015-07-30 15:21:12 -04:00
teor
6d8a2ff24f Check for NULL values in getinfo_helper_onions
Fix on 915c7438a7 in Tor 0.2.7.1-alpha.
2015-06-03 04:19:06 +10:00
Andrea Shepard
0e0b65db4f Appease make check-spaces 2015-06-01 12:59:14 +00:00
Yawning Angel
712bf06978 Add support for 'HiddenServiceMaxStream' to 'ADD_ONION'.
Done as a separate commit to ease backporting the tunables to 0.2.6.x.
2015-05-20 17:41:27 +00:00
Nick Mathewson
d5e4a63436 Fix some compilation warnings 2015-05-18 15:57:21 -04:00
Nick Mathewson
2308f917f9 Merge remote-tracking branch 'andrea/ticket15358_squashed_2' 2015-05-18 14:44:28 -04:00
Andrea Shepard
4cbc9c5313 Add GETINFO network-liveness to control protocol 2015-05-17 13:42:57 +00:00
Andrea Shepard
dce9e915c7 Implement EVENT_NETWORK_LIVENESS 2015-05-17 13:42:57 +00:00
David Goulet
c1ffeadff4 Add missing descriptor ID to HS_DESC control event
For FAILED and RECEIVED action of the HS_DESC event, we now sends back the
descriptor ID at the end like specified in the control-spec section 4.1.25.

Fixes #15881

Signed-off-by: David Goulet <dgoulet@ev0ke.net>
2015-05-14 10:46:38 -04:00
Donncha O'Cearbhaill
4fc21e8dbc Fix segfault in HSPOST command introduce with feature #3523
Checking if node->rs->is_hs_dir when the router_status for the node does
not exist results in a segfault. This bug is not in any released Tor.
2015-05-08 10:16:44 +01:00
Nick Mathewson
f61088ce23 Fix a few more memory leaks; not in any released Tor 2015-05-05 11:08:05 -04:00
Nick Mathewson
e8db9d0c94 Merge branch 'feature3523_027' 2015-05-04 11:41:50 -04:00
Donncha O'Cearbhaill
841c4aa715 Add "+HSPOST" and related "HS_DESC" event flags to the controller.
"+HSPOST" and the related event changes allow the uploading of HS
descriptors via the control port, and more comprehensive event
monitoring of HS descriptor upload status.
2015-05-04 11:41:28 -04:00
Yawning Angel
d4729524d1 Make GETINFO hs/client/desc/id/<identifier> actually work (#14845).
Not in any released version of tor.
2015-05-02 11:45:46 +00:00
Nick Mathewson
e8814816c7 whitespace fixes 2015-04-30 13:38:39 -04:00
David Goulet
9a364026d3 Use rend_data_client/service_create() in code
Every callsite that use to allocate a rend_data_t object now use the
rend_data_client/service_create() function.

Signed-off-by: David Goulet <dgoulet@ev0ke.net>
2015-04-30 12:35:21 -04:00
Yawning Angel
915c7438a7 Add "ADD_ONION"/"DEL_ONION" and "GETINFO onions/*" to the controller.
These commands allow for the creation and management of ephemeral
Onion ("Hidden") services that are either bound to the lifetime of
the originating control connection, or optionally the lifetime of
the tor instance.

Implements #6411.
2015-04-28 10:19:08 -04:00
Nick Mathewson
54000d7ad9 Merge remote-tracking branch 'dgoulet/bug14847_027_06' 2015-04-23 12:24:35 -04:00
Nick Mathewson
372aef8981 Merge remote-tracking branch 'public/bug15546' 2015-04-23 09:50:29 -04:00
Nick Mathewson
f5fa6ac534 Avoid memory leak in error messages in control.c (not in any tor) 2015-04-23 09:26:39 -04:00
Nick Mathewson
43a8457b56 Merge remote-tracking branch 'dgoulet/bug14845_026_01' 2015-04-23 09:25:00 -04:00
David Goulet
6f5f38a0bc Add function to validate HS descriptor ID
Signed-off-by: David Goulet <dgoulet@ev0ke.net>
2015-04-22 09:28:20 -04:00
David Goulet
a4585405d6 Multiple fixes for the HSFETCH command
Ref:
https://trac.torproject.org/projects/tor/ticket/14847?replyto=31#comment:31

Signed-off-by: David Goulet <dgoulet@ev0ke.net>
2015-04-21 14:22:54 -04:00
David Goulet
917c3aac60 Use rend_valid_service_id() in the HSFETCH command
Also, fix a small typo in a comment.

Signed-off-by: David Goulet <dgoulet@ev0ke.net>
2015-04-21 14:22:54 -04:00
David Goulet
3ec651c0a6 Control: make HSFETCH command use LongName
The "SERVER=" option now supports LongName described in the control-spec.txt

Signed-off-by: David Goulet <dgoulet@ev0ke.net>
2015-04-21 14:22:54 -04:00
David Goulet
b100ebee4e Control: add + and 650 OK to HS_DESC_CONTENT event
The HS_DESC_CONTENT event results in multiple line thus must be prefixed
with a "650+" and ending with "650 OK".

Reported-by: Damian Johnson <atagar@torproject.org>
Signed-off-by: David Goulet <dgoulet@ev0ke.net>
2015-04-21 14:22:54 -04:00
David Goulet
28cf9f2186 Control: unbolt rend_data from HS desc event
The HS_DESC event was using rend_data_t from the dir connection to reply the
onion address and authentication type. With the new HSFETCH command, it's
now possible to fetch a descriptor only using the descriptor id thus
resulting in not having an onion address in any HS_DESC event.

This patch removes rend_query from the hs desc control functions and replace
it by an onion address string and an auth type.

On a successful fetch, the service id is taken from the fetched descriptor.
For that, an extra parameter is added to "store as a client" function that
contains the cache entry stored.

This will make the control event functions scale more easily over time if
other values not present in rend_data_t are needed since the rend_data from
the dir connection might not contained everything we need.

Signed-off-by: David Goulet <dgoulet@ev0ke.net>
2015-04-21 14:22:54 -04:00
David Goulet
59f8dced11 Refactor HS descriptor fetch to support descriptor ID
Big refactor of the HS client descriptor fetch functionnality. This allows
to fetch an HS descriptor using only a descriptor ID. Furthermore, it's also
possible to provide a list of HSDir(s) now that are used instead of the
automatically choosen one.

The approach taken was to add a descriptor_id field to the rend_data_t
structure so it can be used, if available, by the HS client. The onion
address field however has priority over it that is if both are set, the
onion address is used to fetch the descriptor.

A new public function is introduced called rend_client_fetch_v2_desc(...)
that does NOT lookup the client cache before fetching and can take a list of
HSDirs as a parameter.

The HSFETCH control command now uses this new function thus making it work
and final.

Signed-off-by: David Goulet <dgoulet@ev0ke.net>
2015-04-21 14:22:48 -04:00
David Goulet
7db58445fd Control: add HS_DESC_CONTENT event
As defined in section 4.1.26 in the control-spec.txt, this new event replies
the content of a successfully fetched HS descriptor. This also adds a unit
test for the controller event.

Signed-off-by: David Goulet <dgoulet@ev0ke.net>
2015-04-21 14:15:02 -04:00
David Goulet
084be23697 Control: groud work for the HSFETCH command
This adds the command on the controller side that parses and validate
arguments but does nothing for now. The HS desriptor fetch must be
modularized a bit more before we can use the command.

See control-spec.txt section 3.26 for more information on this command.

Signed-off-by: David Goulet <dgoulet@ev0ke.net>
2015-04-21 14:15:02 -04:00
Nick Mathewson
cc10f13408 Fix indentation on a block 2015-04-15 11:10:54 -04:00
Nick Mathewson
1a7dea9191 Remove spurious warn 2015-04-15 11:10:48 -04:00
Nick Mathewson
b98cc79477 Merge remote-tracking branch 'sebastian/bug14784' 2015-04-15 11:10:37 -04:00
Nick Mathewson
d59c4063f3 Stop modifying const argument in handle_control_postdescriptor
Fixes 15546.
2015-04-15 10:47:50 -04:00
teor
99c10a95e4 Add unit tests for control_event_is_interesting()
Part of ticket 15431, checks for bugs similar to 13085.
2015-03-22 14:24:41 +11:00
Nick Mathewson
3a68f2f54e const-ify the new failure vars, and one old one 2015-03-13 09:41:49 -04:00
Sebastian Hahn
447769dd28 Don't init control authchallenge nonce as assert side effect
Fixes part of bug 15211.
2015-03-12 18:57:57 +01:00
Nick Mathewson
64bfc2930a Restore c89 in 0.2.5 2015-03-09 13:22:58 -04:00
Nick Mathewson
62631904cb GETINFO bw-event-cache to get information on recent BW events
Closes 14128; useful to regain functionality lost because of 13988.
2015-03-09 13:13:56 -04:00
Nick Mathewson
98822df3dc Make boostrap events include hostname ANDaddr AND digest 2015-03-04 14:23:59 +01:00
Nick Mathewson
79c69d18b7 Include a HOST item in BOOTSTRAP problem messages
Closes ticket 15006.
2015-02-27 11:28:30 -05:00
Nick Mathewson
d221b507c9 Avoid logging natural-language reports that are redundant with bootstrapping 2015-02-23 13:03:56 -05:00
George Kadianakis
6517219093 Control: command to lookup cached HS descriptor
This adds the key "hs/client/desc/id/<ADDR>" to the GETINFO command used to
lookup the given onion address in the client hs descriptor cache.

If found, prints it formatted as specified in section 1.3 of rend-spec.txt.

Fixes #14845

Signed-off-by: David Goulet <dgoulet@ev0ke.net>
2015-02-17 11:30:25 -05:00
Sebastian Hahn
0c11d8b2d2 Implement status/fresh-relay-descs command
The idea here is that a controller should be able to make Tor produce a
new relay descriptor on demand, without that descriptor actually being
uploaded to the dirauths (they would likely reject it anyway due to
freshness concerns).

Implements #14784.
2015-02-15 12:36:07 +01:00
Sebastian Hahn
e0c3de40ad Fix check-spaces complaints 2015-02-06 21:36:40 +01:00
Nick Mathewson
fac8d40886 Merge remote-tracking branch 'public/prop227_v2'
Conflicts:
	src/test/test_dir.c
2015-01-30 07:36:55 -05:00
Arthur Edelstein
cb714d896c Bug #8405: Report SOCKS username/password in CIRC status events
Introduces two new circuit status name-value parameters: SOCKS_USERNAME
and SOCKS_PASSWORD. Values are enclosing in quotes and unusual characters
are escaped.

Example:

    650 CIRC 5 EXTENDED [...] SOCKS_USERNAME="my_username" SOCKS_PASSWORD="my_password"
2015-01-28 12:02:15 -05:00
Nick Mathewson
c240eea0df more typo fixes from mcs and gk 2015-01-28 11:25:37 -05:00
Nick Mathewson
9c4328c038 New GETINFO consensus/packages to expose package information from consensus 2015-01-27 16:40:32 -05:00
Nick Mathewson
63765399eb Merge remote-tracking branch 'public/ticket13037'
Conflicts:
	src/or/config.c
2015-01-18 16:07:08 -05:00
Nick Mathewson
31838bd783 changes suggested by weasel 2015-01-16 11:46:20 -05:00
Nick Mathewson
f8baa40c01 GETINFO bw-event-cache to get information on recent BW events
Closes 14128; useful to regain functionality lost because of 13988.
2015-01-07 13:19:43 -05:00
Nick Mathewson
14dedff0ab Drop assumption that get_torrc_fname() can't return NULL. 2015-01-06 17:06:55 -05:00
Nick Mathewson
3401c34151 Merge remote-tracking branch 'public/bug14116_025' 2015-01-06 14:28:02 -05:00
Nick Mathewson
6d6643298d Don't crash on malformed EXTENDCIRCUIT.
Fixes 14116; bugfix on ac68704f in 0.2.2.9-alpha.
2015-01-06 08:49:57 -05:00
Nick Mathewson
f54e54b0b4 Bump copyright dates to 2015, in case someday this matters. 2015-01-02 14:27:39 -05:00
teor
c3a4201faa Add "internal" to some bootstrap statuses when no exits are available.
If the consensus does not contain Exits, Tor will only build internal
circuits. In this case, relevant statuses will contain the word "internal"
as indicated in the Tor control-spec.txt. When bootstrap completes,
Tor will be ready to handle an application requesting an internal
circuit to hidden services at ".onion" addresses.

If a future consensus contains Exits, exit circuits may become available.

Tor already notifies the user at "notice" level if they have no exits in
the consensus, and can therefor only build internal paths.

Consequential change from #13718.
2014-12-30 09:06:00 -05:00
Nick Mathewson
3a91a08e21 Merge branch 'feature9503_squashed' 2014-11-25 12:49:09 -05:00
rl1987
bf67a60b86 Sending response to SIGNAL HEARTBEAT controller command. 2014-11-25 12:48:41 -05:00
rl1987
8c135062e5 Adding 'SIGNAL HEARTBEAT' message that causes unscheduled heartbeat. 2014-11-25 12:48:41 -05:00
Nick Mathewson
336c856e52 Make can_complete_circuits a static variable. 2014-11-20 12:03:46 -05:00
rl1987
620e251dcc Rewriting comment for control_event_hs_descriptor_failed(). 2014-11-16 16:06:00 +02:00
rl1987
0db96d023b Adding REASON field to HS_DESC FAILED controller event. 2014-11-16 15:51:23 +02:00
Nick Mathewson
fcdcb377a4 Add another year to our copyright dates.
Because in 95 years, we or our successors will surely care about
enforcing the BSD license terms on this code.  Right?
2014-10-28 15:30:16 -04:00
Nick Mathewson
801f4d4384 Fix a double-free in failing case of handle_control_authenticate.
Bugfix on ed8f020e205267e6270494634346ab68d830e1d8; bug not in any
released version of Tor.  Found by Coverity; this is CID 1239290.

[Yes, I used this commit message before, in 58e813d0fc.
Turns out, that fix wasn't right, since I didn't look up a
screen. :P ]
2014-09-26 08:58:15 -04:00
Nick Mathewson
764e008092 Merge branch 'libscrypt_trunnel_squashed'
Conflicts:
	src/test/test_crypto.c
2014-09-25 12:03:41 -04:00
Nick Mathewson
e84e1c9745 More generic passphrase hashing code, including scrypt support
Uses libscrypt when found; otherwise, we don't have scrypt and we
only support openpgp rfc2440 s2k hashing, or pbkdf2.

Includes documentation and unit tests; coverage around 95%. Remaining
uncovered code is sanity-checks that shouldn't be reachable fwict.
2014-09-25 11:58:13 -04:00
Roger Dingledine
1b40ea036f Stop silently skipping invalid args to setevents
Return an error when the second or later arguments of the
"setevents" controller command are invalid events. Previously we
would return success while silently skipping invalid events.

Fixes bug 13205; bugfix on 0.2.3.2-alpha. Reported by "fpxnns".
2014-09-21 16:05:24 -04:00
Nick Mathewson
58e813d0fc Fix a double-free in failing case of handle_control_authenticate.
Bugfix on ed8f020e205267e6270494634346ab68d830e1d8; bug not in any
released version of Tor.  Found by Coverity; this is CID 1239290.
2014-09-18 11:13:57 -04:00
Nick Mathewson
2ecaa59bd7 Merge remote-tracking branch 'origin/maint-0.2.5' 2014-09-08 15:16:45 -04:00
Nick Mathewson
d229025fef Expand the event_mask field in controller conns to 64 bits
Back in 078d6bcd, we added an event number 0x20, but we didn't make
the event_mask field big enough to compensate.

Patch by "teor". Fixes 13085; bugfix on 0.2.5.1-alpha.
2014-09-08 15:16:02 -04:00
Nick Mathewson
ed8f020e20 Fix a couple of small memory leaks on failure cases.
[CID 1234702, 1234703]
2014-09-03 10:59:39 -04:00
Nick Mathewson
e3c143f521 Merge remote-tracking branch 'origin/maint-0.2.5' 2014-09-02 11:58:08 -04:00
Nick Mathewson
efcab43956 Fix a number of clang analyzer false-positives
Most of these are in somewhat non-obvious code where it is probably
a good idea to initialize variables and add extra assertions anyway.

Closes 13036.  Patches from "teor".
2014-09-02 11:56:56 -04:00
Nick Mathewson
9b2d8c4e20 Rename secret_to_key to secret_to_key_rfc2440 2014-08-28 11:20:31 -04:00
Nick Mathewson
c9cac69ac6 Remove a dead check for errmsg in handle_control_authenticate
Coverity doesn't like doing NULL checks on things that can't be
NULL; I like checking things where the logic for their not being
NULL is nontrivial.  Let's compromise, and make it obvious that this
field can't be NULL.

[Coverity CID 202004]
2014-08-21 10:27:43 -04:00
Nick Mathewson
e6a05c1c54 Add a missing goto to an unusable branch and make the branch LD_BUG.
(It's LD_BUG to reach this point because the hashed password values
were tested earlier from options_validate)

[Coverity CID 1232091]
2014-08-21 10:21:17 -04:00
Nick Mathewson
01a0ab02a3 Merge branch 'bug10116_squashed' 2014-08-20 14:52:24 -04:00
Nick Mathewson
6969bd9a02 Autoconvert most circuit-list iterations to smartlist iterations
Breaks compilation.

Used this coccinelle script:

@@
identifier c;
typedef circuit_t;
iterator name TOR_LIST_FOREACH;
iterator name SMARTLIST_FOREACH_BEGIN;
statement S;
@@
- circuit_t *c;
   ...
- TOR_LIST_FOREACH(c, \(&global_circuitlist\|circuit_get_global_list()\), head)
+ SMARTLIST_FOREACH_BEGIN(circuit_get_global_list(), circuit_t *, c)
  S
+ SMARTLIST_FOREACH_END(c);
2014-08-15 16:23:22 -04:00
Nick Mathewson
0808ed83f9 Restore functionality for CookieAuthFileGroupReadable.
When we merged the cookieauthfile creation logic in 33c3e60a37, we
accidentally took out this feature.  Fixes bug 12864, bugfix on
0.2.5.1-alpha.

Also adds an ExtORPortCookieAuthFileGroupReadable, since there's no
reason not to.
2014-08-15 08:30:44 -04:00
Roger Dingledine
29a82b5a8b Merge branch 'maint-0.2.4' into maint-0.2.5 2014-07-28 02:47:15 -04:00
Arlo Breault
8f70d756fb Confusing log message when circuit can't be extended 2014-07-27 15:01:15 -04:00
Nick Mathewson
35791f4238 Remove executable bit from control.c, router.c
Fix for 12512.
2014-07-09 08:54:08 -04:00
Nick Mathewson
ffc1fde01f sandbox: allow access to cookie files, approved-routers
fixes part of 12064
2014-05-22 19:56:56 -04:00
Nick Mathewson
9b4ac986cb Use tor_getpw{nam,uid} wrappers to fix bug 11946
When running with User set, we frequently try to look up our
information in the user database (e.g., /etc/passwd).  The seccomp2
sandbox setup doesn't let us open /etc/passwd, and probably
shouldn't.

To fix this, we have a pair of wrappers for getpwnam and getpwuid.
When a real call to getpwnam or getpwuid fails, they fall back to a
cached value, if the uid/gid matches.

(Granting access to /etc/passwd isn't possible with the way we
handle opening files through the sandbox.  It's not desirable either.)
2014-05-14 13:53:14 -04:00
Nick Mathewson
67aa3685e7 Merge branch 'bug11396_v2_squashed'
Conflicts:
	src/or/main.c
2014-04-24 10:31:38 -04:00
Nick Mathewson
e3af72647d Expose the real maxmeminqueues via a GETINFO
That is, GETINFO limits/max-mem-in-queues
2014-04-24 10:26:14 -04:00
Nick Mathewson
0cca8dc35a Merge remote-tracking branch 'public/bug9963_v2_024' 2014-04-18 15:25:36 -04:00
Nick Mathewson
fa6b80d6e5 Merge remote-tracking branch 'public/bug10431' 2014-04-09 08:29:21 -04:00
Nick Mathewson
245f273aaf Merge branch 'bug7952_final'
Conflicts:
	src/test/include.am
	src/test/test.c
2014-04-08 13:55:02 -04:00
rl1987
51e13cd1ad Making entire exit policy available to Tor controller. 2014-04-08 13:50:02 -04:00
Nick Mathewson
b0bbe6b2f1 Report only the first bootstrap failure from an orconn
Otherwise, when we report "identity mismatch", we then later report
DONE when the connection gets closed.

Fixes bug 10431; bugfix on 0.2.1.1-alpha.
2014-03-27 15:58:43 -04:00
Nick Mathewson
5b36f0d7e7 Log descriptor-download bootstrapping messages less verbosely
This is a fix for 9963.  I say this is a feature, but if it's a
bugfix, it's a bugfix on 0.2.4.18-rc.

Old behavior:

    Mar 27 11:02:19.000 [notice] Bootstrapped 50%: Loading relay descriptors.
    Mar 27 11:02:20.000 [notice] Bootstrapped 51%: Loading relay descriptors.
    Mar 27 11:02:20.000 [notice] Bootstrapped 52%: Loading relay descriptors.
    ... [Many lines omitted] ...
    Mar 27 11:02:29.000 [notice] Bootstrapped 78%: Loading relay descriptors.
    Mar 27 11:02:33.000 [notice] We now have enough directory information to build circuits.

New behavior:

    Mar 27 11:16:17.000 [notice] Bootstrapped 50%: Loading relay descriptors
    Mar 27 11:16:19.000 [notice] Bootstrapped 55%: Loading relay descriptors
    Mar 27 11:16:21.000 [notice] Bootstrapped 60%: Loading relay descriptors
    Mar 27 11:16:21.000 [notice] Bootstrapped 65%: Loading relay descriptors
    Mar 27 11:16:21.000 [notice] Bootstrapped 70%: Loading relay descriptors
    Mar 27 11:16:21.000 [notice] Bootstrapped 75%: Loading relay descriptors
    Mar 27 11:16:21.000 [notice] We now have enough directory information to build circuits.
2014-03-27 11:23:53 -04:00
Nick Mathewson
cce06b649e Merge remote-tracking branch 'asn/bug11069_take2' 2014-03-11 11:04:47 -04:00
George Kadianakis
1c475eb018 Throw control port warning if we failed to connect to all our bridges. 2014-03-10 22:52:07 +00:00
Nick Mathewson
0db39eb89f ATTR_NORETURN is needed on lost_owning_controller now
This should fixes some "hey, that function could have
__attribute__((noreturn))" warnings  introduced by f96400d9.

Bug not in any released version of Tor.
2014-03-03 10:54:20 -05:00
Nick Mathewson
bf1678603f Merge remote-tracking branch 'public/bug10449' 2014-02-25 16:09:15 -05:00
Qingping Hou
bf66ff915a fix longname returned in HS_DESC control events
According to control spec, longname should not contain any spaces and is
consists only of identy_digest + nickname

added two functions:
* node_get_verbose_nickname_by_id()
* node_describe_longname_by_id()
2014-02-06 16:13:55 -05:00
Nick Mathewson
f96400d9df bug10449: a dying owning controller makes Tor exit immediately
If you want a slow shutdown, send SIGNAL SHUTDOWN.

(Why not just have the default be SIGNAL QUIT?  Because this case
should only happen when an owning controller has crashed, and a
crashed controller won't be able to give the user any "tor is
shutting down" feedback, and so the user gets confused for a while.
See bug 10449 for more info)
2014-02-03 12:54:06 -05:00
Nick Mathewson
696b484d4d Defensive programming in control_event_hs_descriptor_*
It looks to me like these functions can never get called with NULL
arguments, but better safe than sorry.
2014-02-03 12:35:35 -05:00
Nick Mathewson
fee7f25ff8 Merge remote-tracking branch 'houqp/hs_control' 2014-02-03 12:28:42 -05:00
Qingping Hou
29c18f5b71 add hidden service descriptor async control event 2014-01-29 22:23:57 -05:00
Nick Mathewson
3193cbe2ba Rip out all of the v2 directory code.
The remaining vestige is that we continue to publish the V2dir flag,
and that, for the controller, we continue to emit v2 directory
formats when requested.
2014-01-29 15:17:05 -05:00
Karsten Loesing
2e0fad542c Merge branch 'morestats4' into morestats5
Conflicts:
	doc/tor.1.txt
	src/or/config.c
	src/or/connection.h
	src/or/control.c
	src/or/control.h
	src/or/or.h
	src/or/relay.c
	src/or/relay.h
	src/test/test.c
2013-10-28 12:09:42 +01:00
Karsten Loesing
e46de82c97 squash! Pass const uint64_t pointers, document array length.
Don't cast uint64_t * to const uint64_t * explicitly.  The cast is always
safe, so C does it for us.  Doing the cast explitictly can hide bugs if
the input is secretly the wrong type.

Suggested by Nick.
2013-10-28 10:48:18 +01:00
Nick Mathewson
71bd100976 DROPGUARDS controller command
Implements ticket 9934; patch from "ra"
2013-10-21 13:02:25 -04:00
Nick Mathewson
aac4f30d23 Add a --dump-config option to help testing option parsing. 2013-09-13 12:36:40 -04:00
Karsten Loesing
b43a37bc5b Pass const uint64_t pointers, document array length.
Suggested by nickm.
2013-09-12 10:51:55 +02:00
Karsten Loesing
6553bdde8c Don't format cell stats for unattached circuits. 2013-09-12 09:21:13 +02:00
Nick Mathewson
00bcc25d05 Cleanup whitespaces 2013-08-25 12:22:20 -04:00
Nick Mathewson
078d6bcda5 Basic unit test for EVENT_TRANSPORT_LAUNCHED 2013-08-25 11:29:03 -04:00
Nick Mathewson
69312c7a84 Widen event_mask_t to 64 bits 2013-08-25 10:46:53 -04:00
George Kadianakis
6dd462e8bc Implement the TRANSPORT_LAUNCHED control port event. 2013-08-25 10:37:03 -04:00
Nick Mathewson
8920fc5457 Hide the contents of the circuit_build_times structure.
There were only two functions outside of circuitstats that actually
wanted to know what was inside this.  Making the structure itself
hidden should help isolation and prevent us from spaghettifying the
thing more.
2013-08-22 10:15:57 -04:00
Nick Mathewson
a3ffa1f76e Rename circuit_get_global_list to remove trailing _ 2013-08-15 15:37:23 -04:00
Nick Mathewson
d4634d1b72 Merge remote-tracking branch 'majek/bug9108'
Conflicts:
	src/or/circuitlist.h
2013-08-15 15:36:04 -04:00
George Kadianakis
f549e4c36d Write some free_all functions to free the auth. cookies.
We started allocating space for them on the heap in the previous
commit.

Conflicts:
	src/or/ext_orport.h
2013-08-15 12:03:38 -04:00
George Kadianakis
33c3e60a37 Implement and use a generic auth. cookie initialization function.
Use the generic function for both the ControlPort cookie and the
ExtORPort cookie.

Also, place the global cookie variables in the heap so that we can
pass them around more easily as pointers.

Also also, fix the unit tests that broke by this change.

Conflicts:
	src/or/config.h
	src/or/ext_orport.c
2013-08-15 12:03:37 -04:00
Nick Mathewson
d7358e8598 Expose/mock some functions to make ext_orport.c testing possible 2013-08-15 12:03:37 -04:00
George Kadianakis
2207525a69 Satisfy check-spaces. 2013-07-18 14:59:56 -04:00
George Kadianakis
d303228eca Create the Extended ORPort authentication cookie file. 2013-07-18 14:59:55 -04:00
Nick Mathewson
a3e0a87d95 Completely refactor how FILENAME_PRIVATE works
We previously used FILENAME_PRIVATE identifiers mostly for
identifiers exposed only to the unit tests... but also for
identifiers exposed to the benchmarker, and sometimes for
identifiers exposed to a similar module, and occasionally for no
really good reason at all.

Now, we use FILENAME_PRIVATE identifiers for identifiers shared by
Tor and the unit tests.  They should be defined static when we
aren't building the unit test, and globally visible otherwise. (The
STATIC macro will keep us honest here.)

For identifiers used only by the unit tests and never by Tor at all,
on the other hand, we wrap them in #ifdef TOR_UNIT_TESTS.

This is not the motivating use case for the split test/non-test
build system; it's just a test example to see how it works, and to
take a chance to clean up the code a little.
2013-07-10 15:20:10 -04:00
Marek Majkowski
1555876d5f Fix #9108 - make global_circuitlist a doubly linked list 2013-06-20 16:56:54 +01:00
Nick Mathewson
2949849143 Merge remote-tracking branch 'origin/maint-0.2.4' 2013-06-13 09:43:53 -04:00
Nick Mathewson
25dddf7a8f Merge remote-tracking branch 'public/bug8822' into maint-0.2.4 2013-06-13 09:40:32 -04:00
Nick Mathewson
d7d6529898 Merge remote-tracking branch 'origin/maint-0.2.4' 2013-06-12 20:55:53 -04:00
Nick Mathewson
e602c4031b Make all consumers of microdesc_t.body tolerate NULL
This is another fix to try to mitigate recurrences of 8031/8822.
2013-06-12 12:12:11 -04:00
Andrea Shepard
ce147a2a9a When launching a resolve request on behalf of an AF_UNIX control, omit the address field of the new entry connection. Fixes bug 8639. 2013-05-31 15:35:51 -07:00
Karsten Loesing
e39292f21d Test functions used for TB_EMPTY and CELL_STATS events. 2013-05-31 16:12:28 +02:00
Karsten Loesing
b33b366a7f Tweak CIRC_BW event based on comments by nickm.
- Rename n_read and n_written in origin_circuit_t to make it clear that
  these are only used for CIRC_BW events.
- Extract new code in control_update_global_event_mask to new
  clear_circ_bw_fields function.
2013-05-25 19:51:38 +02:00
Karsten Loesing
ef67077fba Tweak TB_EMPTY event based on comments by nickm.
- Avoid control_event_refill_global function with 13 arguments and
  increase code reuse factor by moving more code from control.c to
  connection.c.
- Avoid an unsafe uint32_t -> int cast.
- Add TestingEnableTbEmptyEvent option.
- Prepare functions for testing.
- Rename a few functions and improve documentation.
2013-05-25 19:51:38 +02:00
Karsten Loesing
26b49f525d Tweak CELL_STATS event based on comments by nickm.
- Move cell_command_to_string from control.c to command.c.
- Use accessor for global_circuitlist instead of extern.
- Add a struct for cell statistics by command instead of six arrays.
- Split up control_event_circuit_cell_stats by using two helper functions.
- Add TestingEnableCellStatsEvent option.
- Prepare functions for testing.
- Rename a few variables and document a few things better.
2013-05-25 19:51:38 +02:00
Karsten Loesing
2f893624ab Tweak CONN_BW event based on comments by nickm.
- Rename read/write counters in connection_t to make it clear that these
  are only used for CONN_BW events.
- Add TestingEnableConnBwEvent option.
2013-05-25 19:51:38 +02:00
Karsten Loesing
a84fae7892 Tweak ORCONN event based on comments by nickm.
- Move new ID= parameter in ORCONN event to end.  Avoids possible trouble
  from controllers that parse parameters by position, even though they
  shouldn't.
2013-05-25 19:51:33 +02:00
Karsten Loesing
2925e2fe78 Add new CIRC_BW event. 2013-05-16 14:18:13 +02:00
Karsten Loesing
dd5ce2157d Add new TB_EMPTY event.
Jointly authored with Rob Jansen <jansen@cs.umn.edu>.
2013-05-16 14:18:08 +02:00
Karsten Loesing
c386d2d6ce Add new CELL_STATS event.
Jointly authored with Rob Jansen <jansen@cs.umn.edu>.
2013-05-16 14:17:21 +02:00
Karsten Loesing
8d1f78c556 Add new CONN_BW event.
Jointly authored with Rob Jansen <jansen@cs.umn.edu>.
2013-05-16 13:48:35 +02:00
Karsten Loesing
e54d664f7b Add connection ID to ORCONN event.
Jointly authored with Rob Jansen <jansen@cs.umn.edu>.
2013-05-16 13:48:30 +02:00
Arlo Breault
88a780d899 Check the return value of memchr().
For quality-of-implementation in munge_extrainfo_into_routerinfo().
See #8791
2013-05-14 12:23:17 -04:00
Nick Mathewson
e35ca13528 Merge remote-tracking branch 'public/bug8716_023' into maint-0.2.4 2013-04-18 21:33:53 -04:00
Nick Mathewson
0a9c17a61a Fix memory leak when sending configuration-changed event
Fix for bug #8718; bugfix on 0.2.3.3-alpha.
2013-04-17 11:34:15 -04:00
Nick Mathewson
ee3cc44f27 Merge remote-tracking branch 'public/bug7302' into maint-0.2.4
Conflicts:
	src/or/status.c
2013-04-11 01:42:54 -04:00
Desoxy
74f5e304e4 Controller: Add CACHED keyword to ADDRMAP events (#8596 part 2/2)
Add keyword CACHED="YES"/"NO" to ADDRMAP control events to indicate whether the
DNS response will be cached or not.
2013-04-03 18:50:51 +02:00
Nick Mathewson
3f837d4826 Make stream events for RESOLVE lookups more consistent
Fixes 8203; patch by Desoxy
2013-03-18 15:13:59 -04:00
Nick Mathewson
805ecb8719 Make control_event_bootstrap_problem always INFO when hibernating
When we're hibernating, the main reqason we can't bootstrap will
always be that we're hibernating: reporting anything else at severity
WARN is pointless.

Fixes part of 7302.
2013-03-11 20:52:20 -04:00
Nick Mathewson
ba7d93db16 Merge remote-tracking branch 'public/bug7816_023'
Conflicts:
	src/common/util.c
2013-02-07 15:20:50 -05:00
Nick Mathewson
a141430ec3 Rename log() to tor_log() for logging
This is meant to avoid conflict with the built-in log() function in
math.h.  It resolves ticket 7599.  First reported by dhill.

This was generated with the following perl script:

 #!/usr/bin/perl -w -i -p

 s/\blog\(LOG_(ERR|WARN|NOTICE|INFO|DEBUG)\s*,\s*/log_\L$1\(/g;

 s/\blog\(/tor_log\(/g;
2013-02-01 15:43:37 -05:00
Nick Mathewson
4da083db3b Update the copyright date to 201. 2013-01-16 01:54:56 -05:00
Nick Mathewson
4b571d3ab3 Fix memory leak in safe-cookie authentication code
Coverity spotted this. Bug 7816. Fix on 0.2.3.13-alpha.
2012-12-28 22:38:42 -05:00
Nick Mathewson
de4cc126cb Build and test most of the machinery needed for IPv6 virtualaddrmaps
With an IPv6 virtual address map, we can basically hand out a new
IPv6 address for _every_ address we connect to.  That'll be cool, and
will let us maybe get around prop205 issues.

This uses some fancy logic to try to make the code paths in the ipv4
and the ipv6 case as close as possible, and moves to randomly
generated addresses so we don't need to maintain those stupid counters
that will collide if Tor restarts but apps don't.

Also has some XXXX items to fix to make this useful. More design
needed.
2012-12-17 14:51:29 -05:00
Nick Mathewson
3fa9151f26 Merge branch 'win64-7260'
Conflicts:
	src/or/dns.c
2012-12-07 14:12:17 -05:00
Mike Perry
42e3c04a7a Bug 3443: Don't count ORconn setup in circuit build time.
Also, add a hack Roger suggested where we're more patient if no circuits are
opened yet.
2012-12-07 10:34:09 -05:00
Nick Mathewson
267c0e5aa1 Make sure that the error in ADDRMAP events is well-formed
"error=Unable to launch resolve request" is not a nice thing to tell
the controller.  Bugfix on 0.2.0.19-alpha (c11c48fc).
2012-11-23 11:36:44 -05:00
Nick Mathewson
7908ab2093 Move address map into its own file. 2012-11-14 23:16:20 -05:00