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Signed-off-by: David Goulet <dgoulet@torproject.org>
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Couple things happen in this commit. First, we do not re-queue a cell back in
the circuit queue if the write packed cell failed. Currently, it is close to
impossible to have it failed but just in case, the channel is mark as closed
and we move on.
The second thing is that the channel_write_packed_cell() always took ownership
of the cell whatever the outcome. This means, on success or failure, it needs
to free it.
It turns out that that we were using the wrong free function in one case and
not freeing it in an other possible code path. So, this commit makes sure we
only free it in one place that is at the very end of
channel_write_packed_cell() which is the top layer of the channel abstraction.
This makes also channel_tls_write_packed_cell_method() return a negative value
on error.
Two unit tests had to be fixed (quite trivial) due to a double free of the
packed cell in the test since now we do free it in all cases correctly.
Part of #23709
Signed-off-by: David Goulet <dgoulet@torproject.org>
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It looks like it was left behind in a refactor.
Fixes 24559.
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Previously, circuit_stream_is_being_handled incorrectly reported
that (1) an exit port was "handled" by a circuit regardless of
whether the circuit was already isolated in some way, and
(2) that a stream could be "handled" by a circuit even if their
isolation settings were incompatible.
As a result of (1), in Tor Browser, circuit_get_unhandled_ports was
reporting that all ports were handled even though all non-internal
circuits had already been isolated by a SOCKS username+password.
Therefore, circuit_predict_and_launch_new was declining to launch
new exit circuits. Then, when the user visited a new site in Tor
Browser, a stream with new SOCKS credentials would be initiated,
and the stream would have to wait while a new circuit with those
credentials could be built. That wait was making the
time-to-first-byte longer than it needed to be.
Now, clean, not-yet-isolated circuit(s) will be automatically
launched ahead of time and be ready for use whenever a new stream
with new SOCKS credentials (or other isolation criteria) is
initiated.
Fixes bug 18859. Thanks to Nick Mathewson for improvements.
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This makes sure that a non opened channel is never put back in the channel
pending list and that its state is consistent with what we expect that is
IDLE.
Test the fixes in #24502.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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This patch adds a check for the return value of `hs_parse_address()` in
`hs_control_hspost_command()`. Since it should not be possible for
`hs_parse_address()` to fail in this context we wrap the error check
with the `BUG()` macro.
See: https://bugs.torproject.org/24543
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They work the same as DataDirectory, but default slightly different.
Tor is not actually updated to use them yet.
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This patch is a result of auditing all of our uses of
get_datadir_fname() and its kin, and dividing them into cache vs
keys vs other data.
The new get_keydir_fname() and get_cachedir_fname() functions don't
actually do anything new yet.
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This had somehow gotten duplicated between router.c and routerkeys.c
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Signed-off-by: David Goulet <dgoulet@torproject.org>
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Make this a bit more safe with at least type checking of the pointers
depending on the version.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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This introduces the test_hs_control.c file which at this commit contains basic
unit test for the HS_DESC event.
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 removed for two reasons. First, HSDir accepts descriptor even though
they don't think they are in fact an HSDir. This is to avoid consensus desync
between client/service and directories.
Second, our malicious HSDir scanner uses the HSPOST command to post on all
relays in order to test them before they could become HSDir. We had to remove
that check from the tor code that the scanner uses.
Thus, this check should not be enforced by the control port for the above use
cases. It is also a bit more complex with v3 support for which not all HSDir
support it so basically irrelevant check.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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It is not used yet at this commit.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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This is groundwork for the HSPOST control port command that needs a way in the
HS subsystem to upload a service descriptor to a specific HSDir.
To do so, we add a public function that takes a series of parameters including
a fully encoded descriptor and initiate a directory request to a specific
routerstatut_t object.
It is for now not used but should be, in future commit, by the HSPOST command.
This commit has no behavior change, only refactoring.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Signed-off-by: David Goulet <dgoulet@torproject.org>
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"REND_QUERY=" can now output a v3 address.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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When failing to upload a descriptor, signal the control port with a FAILED
event.
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 makes the REPLICA= field optional for the control port event. A v2
service will always pass it and v3 is ignored.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Adds a v3 specific function to handle a received event.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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A new v3 specific function has been added named
control_event_hsv3_descriptor_failed().
The HS v3 subsystem now uses it.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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This changes the control_event_hs_descriptor_requested() call to add the hsdir
index optional value. v2 passes NULL all the time.
This commit creates hs_control.{c|h} that contains wrappers for the HS
subsystem to interact with the control port subsystem.
The descriptor REQUESTED event is implemented following proposal 284 extension
for v3.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Make control_event_hs_descriptor_received() and
control_event_hs_descriptor_failed() v2 specific because they take a
rend_data_t object and v3 will need to pass a different object.
No behavior change.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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First, rename and make that function static because it is internal to
control.c and called by two HS_DESC events.
Second, make it take more basic parameters and thus not a rend_data_t object
so we can still use the function for v3 HS that doesn't use that object.
Third, move the descriptor ID lookup to the two specific events (yes little
code duplication there) because they get a rend_data_t object which won't be
the case for v3.
Finally, through this refactoring, change the pointer check to BUG() and
change some parameter names to reflect what they really are.
No behavior change at this commit.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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This is a naming refactor mostly _except_ for a the events' function that take
a rend_data_t which will require much more refactoring.
No behavior change at this commit, cleanup and renaming stuff to not be only
v2 specific.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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When an intro circuit has closed, do not warn anymore when we can't find the
service. It is possible to hit that condition if the service is removed before
the circuits were fully closed. This happens in the case of deleting an
ephemeral service.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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The functions are now used by the ADD_ONION/DEL_ONION control port command as
well. This commits makes them fully functionnal with hidden service v3.
Part of #20699
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Instead of using the cwd to specify the location of Cargo.toml, we
use the --manifest-path option to specify its location explicitly.
This works around the bug that isis diagnosed on our jenkins builds.
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