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Apparently some freebsd compilers can't tell that 'c' will never
be used uninitialized.
Fixes bug 28413; bugfix on 0.2.9.3-alpha when we added support for
longer AES keys to this function.
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Apparently, even though the manpage says it returns an int, it
can return a long instead and cause a warning.
Bug not in any released Tor. Part of #28399
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Failing to do on clients was causing TLS 1.3 negotiation to fail.
Fixes bug 28245; bugfix on 0.2.9.15, when we added TLS 1.3 support.
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Related to fix for 28202.
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Remember, you can't check to see if there are N bytes left in a
buffer by doing (buf + N < end), since the buf + N computation might
take you off the end of the buffer and result in undefined behavior.
Fixes 28202; bugfix on 0.2.0.3-alpha.
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Treat backtrace test failures as expected on NetBSD, OpenBSD, and
macOS/Darwin, until we solve bug 17808.
(FreeBSD failures have been treated as expected since 18204 in 0.2.8.)
Fixes bug 27948; bugfix on 0.2.5.2-alpha.
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Occasionally, key pinning doesn't catch a relay that shares an ed25519
ID with another relay. Log the identity fingerprints and the shared
ed25519 ID when this happens, instead of making a BUG() warning.
Fixes bug 27800; bugfix on 0.3.2.1-alpha.
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This version of the macro makes it obvious to the compiler that
"tor_assert_unreached()" will always abort().
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If a tor client gets a descriptor that it can't decrypt, chances are that the
onion requires client authorization.
If a tor client is configured with client authorization for an onion but
decryption fails, it means that the configured keys aren't working anymore.
In both cases, we'll log notice the former and log warn the latter and the
rest of the decryption errors are now at info level.
Two logs statement have been removed because it was redundant and printing the
fetched descriptor in the logs when 80% of it is encrypted wat not helping.
Fixes #27550
Signed-off-by: David Goulet <dgoulet@torproject.org>
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The result of CString::into_raw() is not safe to free
with free() except under finicky and fragile circumstances
that we definitely don't meet right now.
This was missed in be583a34a3815c2c10e86094ab0610e4b7f9c869.
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Fortunately with the current callers it couldn't happen in practice.
Fix on d1820c1516a31a149fc51a9e5126bf899e4c4e08.
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Client side, when a descriptor is finally fetched and stored in the cache, we
then go over all pending SOCKS request for that descriptor. If it turns out
that the intro points are unusable, we close the first SOCKS request but not
the others for the same .onion.
This commit makes it that we'll close all SOCKS requests so we don't let
hanging the other ones.
It also fixes another bug which is having a SOCKS connection in RENDDESC_WAIT
state but with a descriptor in the cache. At some point, tor will expire the
intro failure cache which will make that descriptor usable again. When
retrying all SOCKS connection (retry_all_socks_conn_waiting_for_desc()), we
won't end up in the code path where we have already the descriptor for a
pending request causing a BUG().
Bottom line is that we should never have pending requests (waiting for a
descriptor) with that descriptor in the cache (even if unusable).
Fixees #27410.
Signed-off-by: David Goulet <dgoulet@torproject.org>
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xz and zstd were added as optional dependencies in 0.3.1.1-alpha.
Implements ticket 27738.
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Resolve conflicts due to modified comments, and deleted lines.
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Use the Travis Homebrew addon to install packages on macOS. The package
list is the same, but the Homebrew addon does not do a `brew update` by
default.
This makes builds faster, at the cost of using slightly older packages.
Implements ticket 27738.
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This argument was added to match an older idea for the C api, but we
decided not to do it that way in C.
Fixes bug 27741; bugfix on 0.3.3.6 / TROVE-2018-005 fix.
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Since the default cache directory is the same as the default data
directory, we don't want the default CacheDirectoryGroupReadable
value (0) to override an explicitly set "DataDirectoryGroupReadable
1".
To fix this, I'm making CacheDirectoryGroupReadable into an
autobool, and having the default (auto) value mean "Use the value of
DataDirectoryGroupReadable if the directories are the same, and 0
otherwise."
Fixes bug 26913; bugfix on 0.3.3.1-alpha when the CacheDirectory
option was introduced.
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In hs_config.c, we do validate the permission of the hidden service directory
but we do not try to create it. So, in the event that the directory doesn't
exists, we end up in the loading key code path which checks for the
permission and possibly creates the directory. On failure, don't BUG() since
there is a perfectly valid use case for that function to fail.
Fixes #27335
Signed-off-by: David Goulet <dgoulet@torproject.org>
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On GCC and Clang, there's a feature to warn you about bad
conditionals like "if (a = b)", which should be "if (a == b)".
However, they don't warn you if there are extra parentheses around
"a = b".
Unfortunately, the tor_assert() macro and all of its kin have been
passing their inputs through stuff like PREDICT_UNLIKELY(expr) or
PREDICT_UNLIKELY(!(expr)), both of which expand to stuff with more
parentheses around "expr", thus suppressing these warnings.
To fix this, this patch introduces new macros that do not wrap
expr. They're only used when GCC or Clang is enabled (both define
__GNUC__), since they require GCC's "({statement expression})"
syntax extension. They're only used when we're building the
unit-test variant of the object files, since they suppress the
branch-prediction hints.
I've confirmed that tor_assert(), tor_assert_nonfatal(),
tor_assert_nonfatal_once(), BUG(), and IF_BUG_ONCE() all now give
compiler warnings when their argument is an assignment expression.
Fixes bug 27709.
Bugfix on 0.0.6, where we first introduced the "tor_assert()" macro.
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