Fix for 22924. Bugfix on 0.2.9.1-alpha when the test was introducd
-- though it couldn't actually overflow until we fixed 17750.
Additionally, this only seems to overflow on 32-bit, and only when
the compiler doesn't re-order the (possibly dead) assignment out of
the way. We ran into it on a 32-bit ubuntu trusty builder.
Clang didn't like that we were passing uint64_t values to an API
that wanted uint32_t. GCC has either not cared, or has figured out
that the values in question were safe to cast to uint32_t.
Fixes bug22916; bugfix on 0.2.7.2-alpha.
It makes more sense to have the version in the configuration object of the
service because it is afterall a torrc option (HiddenServiceVersion).
Signed-off-by: David Goulet <dgoulet@torproject.org>
The added function frees any allocated pointers in a service configuration
object and reset all values to 0.
Signed-off-by: David Goulet <dgoulet@torproject.org>
As per nickm suggestion, an array of config handlers will not play well with
our callgraph tool.
Instead, we'll go with a switch case on the version which has a good side
effect of allowing us to control what we pass to the function intead of a fix
set of parameters.
Signed-off-by: David Goulet <dgoulet@torproject.org>
Add a helper function to parse uint64_t and also does logging so we can reduce
the amount of duplicate code.
Signed-off-by: David Goulet <dgoulet@torproject.org>
This tests our hs_config.c API to properly load v3 services and register them
to the global map. It does NOT test the service object validity, that will be
the hs service unit test later on.
At this commit, we have 100% code coverage of hs_config.c.
Signed-off-by: David Goulet <dgoulet@torproject.org>
Every hidden service option don't apply to every version so this new function
makes sure we don't have for instance an option that is only for v2 in a v3
configured service.
This works using an exclude lists for a specific version. Right now, there is
only one option that is not allowed in v3. The rest is common.
Signed-off-by: David Goulet <dgoulet@torproject.org>
Try to load or/and generate service keys for v3. This write both the public
and private key file to disk along with the hostname file containing the onion
address.
Signed-off-by: David Goulet <dgoulet@torproject.org>
This also adds unit test and a small python script generating a deterministic
test vector that a unit test tries to match.
Signed-off-by: David Goulet <dgoulet@torproject.org>
This commit adds the support in the HS subsystem for loading a service from a
set of or_options_t and put them in a staging list.
To achieve this, service accessors have been created and a global hash map
containing service object indexed by master public key. However, this is not
used for now. It's ground work for registration process.
Signed-off-by: David Goulet <dgoulet@torproject.org>
Introduces hs_init() located in hs_common.c which initialize the entire HS v3
subsystem. This is done _prior_ to the options being loaded because we need to
allocate global data structure before we load the configuration.
The hs_free_all() is added to release everything from tor_free_all().
Note that both functions do NOT handle v2 service subsystem but does handle
the common interface that both v2 and v3 needs such as the cache and
circuitmap.
Signed-off-by: David Goulet <dgoulet@torproject.org>
Add the hs_config.{c|h} files contains everything that the HS subsystem needs
to load and configure services. Ultimately, it should also contain client
functions such as client authorization.
This comes with a big refactoring of rend_config_services() which has now
changed to only configure a single service and it is stripped down of the
common directives which are now part of the generic handler.
This is ground work for prop224 of course but only touches version 2 services
and add XXX note for version 3.
Signed-off-by: David Goulet <dgoulet@torproject.org>
This object is the foundation of proposal 224 service work. It will change
and be adapted as it's being used more and more in the codebase. So, this
version is just a basic skeleton one that *will* change.
Signed-off-by: David Goulet <dgoulet@torproject.org>
These statistics were largely ununsed, and kept track of statistical information
on things like how many time we had done TLS or how many signatures we had
verified. This information is largely not useful, and would only be logged
after receiving a SIGUSR1 signal (but only if the logging severity level was
less than LOG_INFO).
* FIXES#19871.
* REMOVES note_crypto_pk_op(), dump_pk_op(), and pk_op_counts from
src/or/rephist.c.
* REMOVES every external call to these functions.
Relay operators (especially bridge operators) can use this to lower
or raise the number of consensuses that they're willing to hold for
diff generation purposes.
This enables a workaround for bug 22883.
This reverts part of commit 706c44a6ce.
It was a mistake to remove these includes: they were needed on
systems where we have openssl 1.1.0 *and* libscrypt, and where we
were validating the one against the other.
Fixes bug 22892; bugfix on 0.3.1.1-alpha.
Groundwork for more prop224 service and client code. This object contains
common data that both client and service uses.
Signed-off-by: David Goulet <dgoulet@torproject.org>
This change prevents us from generating corrupt messages when we
are confused about codepage settings, and makes Windows errors
consistent with the rest of our logs.
Fixes bug 22520; bugfix on 0.1.2.8-alpha. Patch from "Vort".
- Move some crypto structures so that they are visible by tests.
- Introduce a func to count number of hops in cpath which will be used
by the tests.
- Mark a function as mockable.
This commit paves the way for the e2e circuit unittests.
Add a stub for the prop224 equivalent of rend_client_note_connection_attempt_ended().
That function was needed for tests, since the legacy function would get
called when we attach streams and our client-side tests would crash with
assert failures on rend_data.
This also introduces hs_client.[ch] to the codebase.
This commit adds most of the work of #21859. It introduces hs_circuit.c
functions that can handle the setup of e2e circuits for prop224 hidden
services, and also for legacy hidden service clients. Entry points are:
prop224 circuits: hs_circuit_setup_e2e_rend_circ()
legacy client-side circuits: hs_circuit_setup_e2e_rend_circ_legacy_client()
This commit swaps the old rendclient code to use the new API.
I didn't try to accomodate the legacy service-side code in this API, since
that's too tangled up and it would mess up the new API considerably IMO (all
this service_pending_final_cpath_ref stuff is complicated and I didn't want to
change it).
Signed-off-by: David Goulet <dgoulet@torproject.org>
The legacy HS circuit code uses rend_data to match between circuits and
streams. We refactor some of that code so that it understands hs_ident
as well which is used for prop224.
circuit_init_cpath_crypto() is responsible for creating the cpath of legacy
SHA1/AES128 circuits currently. We want to use it for prop224 circuits, so we
refactor it to create circuits with SHA3-256 and AES256 as well.
Signed-off-by: David Goulet <dgoulet@torproject.org>
We want to use the circuit_init_cpath_crypto() function to setup our
cpath, and that function accepts a key array as input. So let's make our
HS ntor key expansion function also return a key array as output,
instead of a struct.
Also, we actually don't need KH from the key expansion, so the key
expansion output can be one DIGEST256_LEN shorter. See here for more
info: https://trac.torproject.org/projects/tor/ticket/22052#comment:3
The 22081 fix disabled -Wfloat-conversion, but -Wfloat-conversion
didn't exist in every relevant mingw; it was added in GCC 4.9.x some
time, if the documentation can be trusted.
Bug not in any released version of tor.
When setting the maximum number of connections allowed by the OS,
always allow some extra file descriptors for other files.
Fixes bug 22797; bugfix on 0.2.0.10-alpha.
We just have to suppress these warnings: Mingw's math.h uses gcc's
__builtin_choose_expr() facility to declare isnan, isfinite, and
signbit. But as implemented in at least some versions of gcc,
__builtin_choose_expr() can generate type warnings even from
branches that are not taken.
Fixes bug 22801; bugfix on 0.2.8.1-alpha.
Our mock network put all the guards on the same IPv4 address, which
doesn't fly when we start applying EnforceDistinctSubnets. So in
this commit, I disable EnforceDistinctSubnets when running the old
guard_restriction_t test.
This commit also adds a regression test for #22753.
When the new path selection logic went into place, I accidentally
dropped the code that considered the _family_ of the exit node when
deciding if the guard was usable, and we didn't catch that during
code review.
This patch makes the guard_restriction_t code consider the exit
family as well, and adds some (hopefully redundant) checks for the
case where we lack a node_t for a guard but we have a bridge_info_t
for it.
Fixes bug 22753; bugfix on 0.3.0.1-alpha. Tracked as TROVE-2016-006
and CVE-2017-0377.
