Nick Mathewson [Wed, 26 Jul 2017 19:37:53 +0000 (15:37 -0400)]
Merge branch 'maint-0.3.0' into maint-0.3.1
This is an "ours" merge to avoid taking any changs from maint-0.3.0:
we don't want to take the travis file, since there is a separate branch
for putting it in 0.3.1 and later.
Nick Mathewson [Tue, 25 Jul 2017 14:14:24 +0000 (10:14 -0400)]
Fix build warnings from Coverity related to our BUG macro
In the Linux kernel, the BUG() macro causes an instant panic. Our
BUG() macro is different, however: it generates a nonfatal assertion
failure, and is usable as an expression.
Additionally, this patch tells util_bug.h to make all assertion
failures into fatal conditions when we're building with a static
analysis tool, so that the analysis tool can look for instances
where they're reachable.
* CHANGE .travis.yml so that commands for different purposes (e.g. getting
dependencies, building, testing) are in separate config lines and sections.
* CHANGE .travis.yml to use their mechanism for installing dependencies via
apt. [0] This also allows us to not need sudo (the "sudo: false" line).
* CHANGE Travis CI tests (the "script:" section) to build and run tests in the
same manner as Jenkins (i.e. with --enable-fatal-warnings and
--disable-silent-rules and run `make check`).
* ADD Travis configuration to do all the target builds with both GCC and clang.
* ADD make flags to build with both of the cores available.
* ADD notifications for IRC, and configure email notifications (to the author
of the commit) only if the branch was previously building successfully and
the latest commit broke it.
* ADD the ability to run the Travis build matrix for OSX as well, but leave it
commented out by default (because it takes roughly ten times longer, due to a
shortage of OSX build machines).
* ADD Travis config option to cancel/fail the build early if one target has
already failed ("fast_finish: true").
* ADD comments to describe what our Travis config is doing and why it is
configured that way.
Nick Mathewson [Fri, 14 Jul 2017 20:21:51 +0000 (16:21 -0400)]
Fix zstd 1.3.0 trouble: Be more respectful of its state machine
In zstd 1.3.0, once you have called ZSTD_endStream and been told
that your putput buffer is full, it really doesn't want you to call
ZSTD_compressStream again. ZSTD 1.2.0 didn't seem to mind about
this.
This patch fixes the issue by making sure never to call
ZSTD_endStream if there's any more data on the input buffer to
process, by flushing even when we're about to call "endStream", and
by never calling "compress" or "flush" after "endStream".
Nick Mathewson [Thu, 13 Jul 2017 21:49:48 +0000 (17:49 -0400)]
Fix compiler warnings with openssl-scrypt/libscrypt test on clang
Clang didn't like that we were passing uint64_t values to an API
that wanted uint32_t. GCC has either not cared, or has figured out
that the values in question were safe to cast to uint32_t.
Nick Mathewson [Wed, 12 Jul 2017 17:15:16 +0000 (13:15 -0400)]
New configuration option MaxConsensusAgeForDiffs
Relay operators (especially bridge operators) can use this to lower
or raise the number of consensuses that they're willing to hold for
diff generation purposes.
It was a mistake to remove these includes: they were needed on
systems where we have openssl 1.1.0 *and* libscrypt, and where we
were validating the one against the other.
Nick Mathewson [Fri, 7 Jul 2017 17:11:18 +0000 (13:11 -0400)]
Use LANG_ENGLISH in windows error messages
This change prevents us from generating corrupt messages when we
are confused about codepage settings, and makes Windows errors
consistent with the rest of our logs.
Fixes bug 22520; bugfix on 0.1.2.8-alpha. Patch from "Vort".
Nick Mathewson [Wed, 5 Jul 2017 20:10:45 +0000 (16:10 -0400)]
Only disable -Wfloat-conversion on mingw when it exists.
The 22081 fix disabled -Wfloat-conversion, but -Wfloat-conversion
didn't exist in every relevant mingw; it was added in GCC 4.9.x some
time, if the documentation can be trusted.
Nick Mathewson [Mon, 3 Jul 2017 14:59:31 +0000 (10:59 -0400)]
Fix -Wfloat-conversion C warnings on mingw in clamp_double_to_int64.
We just have to suppress these warnings: Mingw's math.h uses gcc's
__builtin_choose_expr() facility to declare isnan, isfinite, and
signbit. But as implemented in at least some versions of gcc,
__builtin_choose_expr() can generate type warnings even from
branches that are not taken.
Nick Mathewson [Thu, 29 Jun 2017 14:09:06 +0000 (10:09 -0400)]
Adjust unit tests to account for fix to bug 22753.
Our mock network put all the guards on the same IPv4 address, which
doesn't fly when we start applying EnforceDistinctSubnets. So in
this commit, I disable EnforceDistinctSubnets when running the old
guard_restriction_t test.
This commit also adds a regression test for #22753.
Nick Mathewson [Wed, 28 Jun 2017 15:41:50 +0000 (11:41 -0400)]
Consider the exit family when applying guard restrictions.
When the new path selection logic went into place, I accidentally
dropped the code that considered the _family_ of the exit node when
deciding if the guard was usable, and we didn't catch that during
code review.
This patch makes the guard_restriction_t code consider the exit
family as well, and adds some (hopefully redundant) checks for the
case where we lack a node_t for a guard but we have a bridge_info_t
for it.
Fixes bug 22753; bugfix on 0.3.0.1-alpha. Tracked as TROVE-2016-006
and CVE-2017-0377.