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We used to sizeof() a pointer. Let's just use asprintf to avoid having
to be smart.
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Also prepend period_length to any period_num, as specified by the spec.
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Turns out that introduction points don't care about the INTRODUCE2 cell
format as long as the top field is LEGACY_KEY_ID as expected. So let's
use a single INTRODUCE format regardless of the introduction point being
legacy or not.
This also removes the polymorphic void* situation.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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To upload the descriptor we needed a state file to write the rev counters in,
but that test did not have a state file initialized.
Also fix the typo in its func name.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Signed-off-by: David Goulet <dgoulet@torproject.org>
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Signed-off-by: David Goulet <dgoulet@torproject.org>
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We consider to be in overlap mode when we are in the period of time between a
fresh SRV and the beginning of the new time period (in the normal network this
is between 00:00 and 12:00 UTC). This commit edits that function to use the
above semantic logic instead of absolute times.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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It used to be that time periods were 24 hours long even on chutney,
which made testing harder. With this commit, time periods have the same
length as a full SRV protocol run, which means that they will change
every 4 minutes in a 10-second voting interval chutney network!
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Instead use the SRV protocol duration to calculate the rotation offset
that was previously hardcoded to 12 hours.
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This is also needed to make the HS desc overlap mode function
independent of absolute hours.
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This function will be used to make the HS desc overlap function be
independent of absolute times.
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Because of bug #22447, we have to select nodes that are at least this version.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Make this function public so we can use it both in hs_circuit.c and
hs_service.c to avoid code duplication.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Signed-off-by: David Goulet <dgoulet@torproject.org>
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This introduces a callback to relaunch a service rendezvous circuit when a
previous one failed to build or expired.
It unifies the legacy function rend_service_relaunch_rendezvous() with one for
specific to prop224. There is now only one entry point for that which is
hs_circ_retry_service_rendezvous_point() supporting both legacy and prop224
circuits.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Change the timing for intro point's lifetime and maximum amount of circuit we
are allowed to launch in a TestingNetwork. This is particurlarly useful for
chutney testing to test intro point rotation.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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When the circuit is about to be freed which has been marked close before, for
introduction circuit we now call this has_closed() callback so we can cleanup
any introduction point that have retried to many times or at least flag them
that their circuit is not established anymore.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Renamed to rend_num_services() so it is consistent with the legacy naming.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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We used to use NULL subcredential which is a terrible terrible idea. Refactor
HS unittests to use subcredentials.
Also add some non-fatal asserts to make sure that we always use subcredentials
when decoding/encoding descs.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Signed-off-by: David Goulet <dgoulet@torproject.org>
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Signed-off-by: David Goulet <dgoulet@torproject.org>
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Move tests from test_hs_service.c to this file.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Move the ntor test from test_hs_service.c to this file.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Move ESTABLISH_INTRO tests from test_hs_service.c to this new file.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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This commit refactors the handle_hs_exit_conn() function introduced at a prior
commit that connects the rendezvous circuit to the edge connection used to
connect to the service virtual port requested in a BEGIN cell.
The refactor adds the support for prop224 adding the
hs_service_set_conn_addr_port() function that has the same purpose has
rend_service_set_connection_addr_port() from the legacy code.
The rend_service_set_connection_addr_port() has also been a bit refactored so
the common code can be shared between the two HS subsystems (legacy and
prop224).
In terms of functionallity, nothing has changed, we still close the circuits
in case of failure for the same reasons as the legacy system currently does.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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This commit simply moves the code from the if condition of a rendezvous
circuit to a function to handle such a connection. No code was modified
_except_ the use or rh.stream_id changed to n_stream->stream_id so we don't
have to pass the cell header to the function.
This is groundwork for prop224 support which will break down the
handle_hs_exit_conn() depending on the version of hidden service the circuit
and edge connection is for.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Signed-off-by: David Goulet <dgoulet@torproject.org>
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Signed-off-by: David Goulet <dgoulet@torproject.org>
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Signed-off-by: David Goulet <dgoulet@torproject.org>
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Introduction point are rotated either if we get X amounts of INTRODUCE2 cells
on it or a time based expiration. This commit adds two consensus parameters
which are the min and max value bounding the random value X.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Imagine a Tor network where you have only 8 nodes available due to some
reasons. And your hidden service wants 8 introduction points. Everything is
fine but then a node goes down bringing the network to 7. The service will
retry 3 times that node and then give up but keep it in a failure cache for 5
minutes (INTRO_CIRC_RETRY_PERIOD) so it doesn't retry it non stop and exhaust
the maximum number of circuit retry.
In the real public network today, this is unlikely to happen unless the
ExcludeNodes list is extremely restrictive.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Signed-off-by: David Goulet <dgoulet@torproject.org>
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This commit adds a directory command function to make an upload directory
request for a service descriptor.
It is not used yet, just the groundwork.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Signed-off-by: David Goulet <dgoulet@torproject.org>
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Signed-off-by: David Goulet <dgoulet@torproject.org>
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This hsdir index value is used to give an index value to all node_t (relays)
that supports HSDir v3. An index value is then computed using the blinded key
to know where to fetch/upload the service descriptor from/to.
To avoid computing that index value everytime the client/service needs it, we
do that everytime we get a new consensus which then doesn't change until the
next one. The downside is that we need to sort them once we need to compute
the set of responsible HSDir.
Finally, the "hs_index" function is also added but not used. It will be used
in later commits to compute which node_t is a responsible HSDir for the
service we want to fetch/upload the descriptor.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Signed-off-by: David Goulet <dgoulet@torproject.org>
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Signed-off-by: David Goulet <dgoulet@torproject.org>
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Also rename some function to follow a bit more the naming convention in that
file.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Signed-off-by: David Goulet <dgoulet@torproject.org>
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Signed-off-by: David Goulet <dgoulet@torproject.org>
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At this commit, launching rendezvous circuit is not implemented, only a
placeholder.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Add this helper function that can lookup and return all the needed object from
a circuit identifier. It is a pattern we do often so make it nicer and avoid
duplicating it everywhere.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Signed-off-by: David Goulet <dgoulet@torproject.org>
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Add the entry point from the circuit subsystem of "circuit has opened" which
is for all type of hidden service circuits. For the introduction point, this
commit actually adds the support for handling those circuits when opened and
sending ESTABLISH_INTRO on a circuit.
Rendevzou point circuit aren't supported yet at this commit.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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