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This one was actually fairly simple.
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Now it has a function that can tell the rest of Tor whether any
once-a-second controller item should fire, and a function to fire
all the once-a-second events.
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This requires that when a log cb happens, the event for flushing
queued events is scheduled, so we also add the necessary machinery
to have that happen.
Note that this doesn't actually help with logs from outside the main
thread, but those were already suppressed: see #25987 for a ticket
tracking that issue.
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This option was used for shadow testing previously, but is no longer
used for anything. It interferes with refactoring our token buckets.
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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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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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At this commit, the key handling and generation is supported for a v3 service
(ED25519-V3). However, the service creation is not yet implemented. This only
adds the interface and code to deal with the new ED25519-V3 key type.
Tests have been updated for RSA key type but nothing yet for ED25519-v3.
Part of #20699
Signed-off-by: David Goulet <dgoulet@torproject.org>
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This feature should help programs that want to launch and manage a
Tor process, as well as programs that want to launch and manage a
Tor instance in a separate thread. Right now, they have to open a
controlport, and then connect to it, with attendant authentication
issues. This feature allows them to just start with an
authenticated connection.
Bug 23900.
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Change the contract of control_event_bootstrap_problem() to be more
general and to take a connection_t. New function
control_event_bootstrap_prob_or() has the specific or_connection_t
funcionality previously used.
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If somebody asks for it, log a warning.
Closes ticket 22377.
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If there are no ephemeral or detached onion services, then
"GETINFO onions/current" or "GETINFO onions/detached" should
return an empty list instead of an error
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Fixes #16023
Signed-off-by: David Goulet <dgoulet@ev0ke.net>
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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.
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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.
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This avoids a conflict with a macro decl from libevent 1.x.
Fixes bug 16867; bug not in any released Tor.
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This puts the init logic in a separate function, which we will need
once we have locking.
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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.
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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.
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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>
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"+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.
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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.
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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>
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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>
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Add a compile-time check that the number of events doesn't exceed
the capacity of control_event_t.event_mask.
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Part of ticket 15431, checks for bugs similar to 13085.
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Closes 14128; useful to regain functionality lost because of 13988.
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Because in 95 years, we or our successors will surely care about
enforcing the BSD license terms on this code. Right?
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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.
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fixes part of 12064
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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.
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