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This moves it to hs_client.c so it can be used by both system (legacy and
prop224). For now, only the legacy system uses it.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Don't assert() on rend_data when closing circuits to report an IP failure. The
prop224 code doesn't have yet the support for this.
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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For now, prop224 doesn't have a mechanism to note down connection attempts so
we only do it for legacy system using rend_data.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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The client can now handle RENDEZVOUS2 cell when they arrive. This consolidate
both hidden service version in one function.
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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The client is now able to handle an INTRODUCE_ACK cell and do the appropriate
actions.
An intro point failure cache is missing and a way to close all intro point
that were launched in parallel. Some notes are in the comment for that.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Add a function to parse an INTRODUCE_ACK cell in hs_cell.c. Furthermore, add
an enum that lists all possible expected status code.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Signed-off-by: David Goulet <dgoulet@torproject.org>
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From an edge connection object, add a function that randomly pick an
introduction point for the requested service.
This follows the code design of rend_client_get_random_intro() and returns an
extend_info_t object ready to be used to extend to.
At this commit, it is not used yet.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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When a descriptor fetch has completed and it has been successfully stored in
the client cache, this callback will take appropriate actions to attach
streams and/or launch neede circuits to connect to the service.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Client now handles a RENDEZVOUS_ESTABLISHED cell when it arrives on the
rendezvous circuit. This new function applies for both the legacy system and
prop224.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Add a function to build the cell.
Add a the logic to send the cell when the rendezvous circuit opens.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Make a single entry point for the entire HS subsystem when a client circuit
opens (every HS version).
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Add a function in hs_cell.{c|h} for a client to build an INTRODUCE1 cell using
an object that contains all the needed keys to do so.
Add an entry point in hs_client.c that allows a tor client to send an
INTRODUCE1 cell on a given introduction circuit.
It includes the building of the cell, sending it and the setup of the
rendezvous circuit with the circuit identifier.
The entry point function is still unused at this commit.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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The hs circuit file had this function that takes a list of link specifiers and
return a newly allocated extend info object. Make it public so the client side
can also use it to be able to extend to introduction point.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Put all the possible assert() we can do on a client introduction circuit in
one helper function to make sure it is valid and usable.
It is disabled for now so gcc doesn't complain that we have a unused function.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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This commit only moves code into a function. The client code will need a way
to take a bunch of descriptor link specifier object and encode them into link
specifiers objects.
Make this a public function so it can be used outside of hs_descriptor.c.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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This will be useful to the hidden service subsystem that needs to go over all
connections of a certain state to attach them to a hidden service circuit.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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- Add tests that ensure that SOCKS requests for v2/v3 addresses get
intercepted and handled.
- Add test that stores and lookups an HS descriptor in the client-side cache.
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 is a static function so don't polute the hs_client_ namespace.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Once a descriptor has been successfully downloaded from an HSDir, we flag the
directory connection to "has fetched descriptor" so the connection subsystem
doesn't trigger a new fetch on success.
Same has DIR_PURPOSE_HAS_FETCHED_RENDDESC_V2 but for prop224.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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This code handles received HS descriptors by storing them in the
client-side HS cache.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Signed-off-by: David Goulet <dgoulet@torproject.org>
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Recognize and handle v3 addresses.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Entry point is hs_client_refetch_v3_renddesc().
Will be used in subsequent commits.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Also refactor rendclient.c to use the new hs_pick_hdsir() func.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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- Also add tests for the hidserv_req subsystem.
- Introduce purge_v2_hidserv_req() wrapper to simplify v2 code.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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See documentation of `last_hid_serv_requests_` for how it works. strmaps are
cool!
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Specifically move the pick_hsdir() function and all the HSDir request tracking
code. We plan to use all that code both for v2 and v3.
This commit only moves code.
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 will need to edit this function, and it's already pretty huge. Let's make
it a bit smaller.
This commit moves code, fixes a 80 char line and add two lines at the start to
make it compile. Trivial change.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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We need this func so that we recognize SOCKS conns to v3 addresses.
- Also rename rend_valid_service_id() to rend_valid_v2_service_id()
- Also move parse_extended_hostname() tests to their own unittest, and
add a v3 address to the test as well.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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When we enter overlap mode we start using the next hsdir index of
relays. However, we only compute the next hsdir index of relays when we
receive a consensus or their descriptor. This means that there is a
window of time between entering the overlap period and fetching the
consensus where relays have their next hsdir index uninitialized. This
patch fixes this by recomputing all hsdir indices when we first enter
the overlap period.
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We want to reupload our descriptor if its set of responsible HSDirs
changed to minimize reachability issues.
This patch adds a callback everytime we get new dirinfo which checks if
the hash ring changed and reuploads descriptor if needed.
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Make sure we have a live consensus (for SRV) and enough descriptors (for
hash ring).
Also fix unittests that broke.
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We used to not check next hsdir index.
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Because the HS subsystem calls it every second, change the log level to debug
so it doesn't spam the info log.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Our Windows compiler treats "time_t" as long long int but Linux likes it
long int so cast those to make Windows happy.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Partially fix #23224.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Partially fixes #23223
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Use the PATH_SEPARATOR for a path comparaison so it works with Windows as
well.
Partially fix #23223
Signed-off-by: David Goulet <dgoulet@torproject.org>
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This change should improve overhead for downloading small numbers of
descriptors and microdescriptors by improving compression
performance and lowering directory request overhead.
Closes ticket 23220.
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