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There are three cases where this can happen: changes in our
controller events, changes in our DisableNetwork setting, and
changes in our hibernation state.
Closes ticket 26063.
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Closes ticket 26064.
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We want to tell "shut down" from "shutting down".
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When we change the hibernation state, rescan the main loop event list because
the new state might affect the events.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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Previously this was done as part of the refill callback, but there's
no real reason to do it like that. Since we're trying to remove the
refill callback completely, we can do this work as part of
record_num_bytes_transferred_impl(), which already does quite a lot
of this.
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* ADD new /src/common/crypto_rand.[ch] module.
* ADD new /src/common/crypto_util.[ch] module (contains the memwipe()
function, since all crypto_* modules need this).
* FIXES part of #24658: https://bugs.torproject.org/24658
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Using get_uptime() and reset_uptime() instead of
accessing stats_n_seconds_working directly.
stats_n_seconds_working is not extern anymore.
Ticket #25081
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Bugfix on 7267 in 0.2.4.7-alpha
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This should make most of the reasons that we hibernate cleaner.
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Sometimes when we call exit(), it's because the process is
completely hopeless: openssl has a broken AES-CTR implementation, or
the clock is in the 1960s, or something like that.
But sometimes, we should return cleanly from tor_main() instead, so
that embedders can keep embedding us and start another Tor process.
I've gone through all the exit() and _exit() calls to annotate them
with "exit ok" or "XXXX bad exit" -- the next step will be to fix
the bad exit()s.
First step towards 23848.
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The biggest offender here was sometimes not checking the output of
crypto_pk_get_digest.
Fixes bug 19418. Reported by Guido Vranken.
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Closes bug 22245; bugfix on 0.0.9rc1, when bandwidth accounting was
first introduced.
Found by Andrey Karpov and reported at https://www.viva64.com/en/b/0507/
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Fixes #18145.
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This commit adds or improves the module-level documenation for:
buffers.c circuitstats.c command.c connection_edge.c control.c
cpuworker.c crypto_curve25519.c crypto_curve25519.h
crypto_ed25519.c crypto_format.c dircollate.c dirserv.c dns.c
dns_structs.h fp_pair.c geoip.c hibernate.c keypin.c ntmain.c
onion.c onion_fast.c onion_ntor.c onion_tap.c periodic.c
protover.c protover.h reasons.c rephist.c replaycache.c
routerlist.c routerparse.c routerset.c statefile.c status.c
tor_main.c workqueue.c
In particular, I've tried to explain (for each documented module)
what each module does, what's in it, what the big idea is, why it
belongs in Tor, and who calls it. In a few cases, I've added TODO
notes about refactoring opportunities.
I've also renamed an argument, and fixed a few DOCDOC comments.
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Patch from pastly; fixes bug 19964.
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This is a big-ish patch, but it's very straightforward. Under this
clang warning, we're not actually allowed to have a global variable
without a previous extern declaration for it. The cases where we
violated this rule fall into three roughly equal groups:
* Stuff that should have been static.
* Stuff that was global but where the extern was local to some
other C file.
* Stuff that was only global when built for the unit tests, that
needed a conditional extern in the headers.
The first two were IMO genuine problems; the last is a wart of how
we build tests.
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Implements feature #18685.
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This patch was generated using;
sed -i -e "s/\bINLINE\b/inline/" src/*/*.[ch] src/*/*/*.[ch]
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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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Generally, we don't like to parse the same thing over and over; it's
best IMO to do it once at the start of the code.
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Patch from "chobe". Closes ticket 961.
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A new set of unit test cases are provided, as well as introducing
an alternative paradigm and macros to support it. Primarily, each test
case is given its own namespace, in order to isolate tests from each
other. We do this by in the usual fashion, by appending module and
submodule names to our symbols. New macros assist by reducing friction
for this and other tasks, like overriding a function in the global
namespace with one in the current namespace, or declaring integer
variables to assist tracking how many times a mock has been called.
A set of tests for a small-scale module has been included in this
commit, in order to highlight how the paradigm can be used. This
suite gives 100% coverage to status.c in test execution.
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Implements ticket 5526.
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We previously used FILENAME_PRIVATE identifiers mostly for
identifiers exposed only to the unit tests... but also for
identifiers exposed to the benchmarker, and sometimes for
identifiers exposed to a similar module, and occasionally for no
really good reason at all.
Now, we use FILENAME_PRIVATE identifiers for identifiers shared by
Tor and the unit tests. They should be defined static when we
aren't building the unit test, and globally visible otherwise. (The
STATIC macro will keep us honest here.)
For identifiers used only by the unit tests and never by Tor at all,
on the other hand, we wrap them in #ifdef TOR_UNIT_TESTS.
This is not the motivating use case for the split test/non-test
build system; it's just a test example to see how it works, and to
take a chance to clean up the code a little.
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Fix for #6113.
Note that the RFC1123 times we generate still all say 'GMT'. I'm
going to suggest this is not worth changing.
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Also, try to resolve some doxygen issues. First, define a magic
"This is doxygen!" macro so that we take the correct branch in
various #if/#else/#endifs in order to get the right documentation.
Second, add in a few grouping @{ and @} entries in order to get some
variables and fields to get grouped together.
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Fixes bug 4893.
These changes are pure mechanical, and were generated with this
perl script:
/usr/bin/perl -w -i.bak -p
s/crypto_pk_env_t/crypto_pk_t/g;
s/crypto_dh_env_t/crypto_dh_t/g;
s/crypto_cipher_env_t/crypto_cipher_t/g;
s/crypto_digest_env_t/crypto_digest_t/g;
s/aes_free_cipher/aes_cipher_free/g;
s/crypto_free_cipher_env/crypto_cipher_free/g;
s/crypto_free_digest_env/crypto_digest_free/g;
s/crypto_free_pk_env/crypto_pk_free/g;
s/_crypto_dh_env_get_dh/_crypto_dh_get_dh/g;
s/_crypto_new_pk_env_rsa/_crypto_new_pk_from_rsa/g;
s/_crypto_pk_env_get_evp_pkey/_crypto_pk_get_evp_pkey/g;
s/_crypto_pk_env_get_rsa/_crypto_pk_get_rsa/g;
s/crypto_new_cipher_env/crypto_cipher_new/g;
s/crypto_new_digest_env/crypto_digest_new/g;
s/crypto_new_digest256_env/crypto_digest256_new/g;
s/crypto_new_pk_env/crypto_pk_new/g;
s/crypto_create_crypto_env/crypto_cipher_new/g;
s/connection_create_listener/connection_listener_new/g;
s/smartlist_create/smartlist_new/g;
s/transport_create/transport_new/g;
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These were found by looking for tor_snprintf() instances that were
preceeded closely by tor_malloc(), though I probably converted some
more snprintfs as well.
(In every case, make sure that the length variable (if any) is
removed, renamed, or lowered, so that anything else that might have
assumed a longer buffer doesn't exist.)
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When we have an effective bandwidthrate configured so that we cannot
exceed our bandwidth limit in one accounting interval, don't disable
advertising the dirport. Implements ticket 2434.
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Some controllers want this so they can mess with Tor's configuration
for a while via the control port before actually letting Tor out of
the house.
We do this with a new DisableNetwork option, that prevents Tor from
making any outbound connections or binding any non-control
listeners. Additionally, it shuts down the same functionality as
shuts down when we are hibernating, plus the code that launches
directory downloads.
To make sure I didn't miss anything, I added a clause straight to
connection_connect, so that we won't even try to open an outbound
socket when the network is disabled. In my testing, I made this an
assert, but since I probably missed something, I've turned it into a
BUG warning for testing.
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