Commit 59d1eb3ff8 added a Python-based
name server (bin/tests/system/forward/ans11/ans.py) to the "forward"
system test, but did not update the bin/tests/system/forward/prereq.sh
script to ensure Python is present in the test environment before the
"forward" system test is run. Update bin/tests/system/forward/prereq.sh
to enforce that requirement.
- Check that an NS in an authority section returned from a forwarder
which is above the name in a configured "forward first" or "forward
only" zone (i.e., net/NS in a response from a forwarder configured for
local.net) is not cached.
- Test that a DNAME for a parent domain will not be cached when sent
in a response from a forwarder configured to answer for a child.
- Check that glue is rejected if its name falls below that of zone
configured locally.
- Check that an extra out-of-bailiwick data in the answer section is
not cached (this was already working correctly, but was not explicitly
tested before).
(cherry picked from commit bf3fffff67)
Add a test case to check for lingering TCP sockets stuck in the
CLOSE_WAIT state. This can happen if a client sends some garbage after
its first query.
The system test runs the reproducer script and then sends another TCP
query to the resolver. The resolver is configured to allow one TCP
client only. If BIND has its TCP socket stuck in CLOSE_WAIT, it does
not have the resources available to answer the second query.
Note: A better test would be to check if the named daemon does not
have a TCP socket stuck in CLOSE_WAIT for example with netstat. When
running this test locally you can examine named with netstat manually.
But since netstat is platform specific it is not a good candidate to do
this as a system test.
If you, if you could return, don't let it burn.
Do you have to let it linger?
- Cranberries
(cherry picked from commit b9ebde705b)
Enable use of shortcuts like pytest.importorskip and other tricks
which can cause test to skip itself.
(cherry picked from commit b8829c801f)
In addition to b8829c801f,
"R:$systest:SKIPPED" is not being printed when pytests are skipped
because that leads to two `R:` lines - SKIPPED and PASS/FAIL which is
determined later based on other conditions (core files identified,
assertion failures, shell test result, ...) - which is wrong and
testsummary.sh rightfully stumbles on it:
I:Found 106 test results, but 105 tests were run
After some back and forth, it was decidede to match the configuration
option with unbound ("so-reuseport"), PowerDNS ("reuseport") and/or
nginx ("reuseport").
(cherry picked from commit 7e71c4d0cc)
Previously, HAVE_SO_REUSEPORT_LB has been defined only in the private
netmgr-int.h header file, making the configuration of load balanced
sockets inoperable.
Move the missing HAVE_SO_REUSEPORT_LB define the isc/netmgr.h and add
missing isc_nm_getloadbalancesockets() implementation.
(cherry picked from commit 142c63dda8)
Previously, the option to enable kernel load balancing of the sockets
was always enabled when supported by the operating system (SO_REUSEPORT
on Linux and SO_REUSEPORT_LB on FreeBSD).
It was reported that in scenarios where the networking threads are also
responsible for processing long-running tasks (like RPZ processing, CATZ
processing or large zone transfers), this could lead to intermitten
brownouts for some clients, because the thread assigned by the operating
system might be busy. In such scenarious, the overall performance would
be better served by threads competing over the sockets because the idle
threads can pick up the incoming traffic.
Add new configuration option (`load-balance-sockets`) to allow enabling
or disabling the load balancing of the sockets.
(cherry picked from commit 85c6e797aa)
The launchd script only counted up to 8 whereas ifconfig.sh went all
the way up to 10, and even a bit further than that.
(cherry picked from commit 29a3e77425)
the line "$GENERATE 19-28/2147483645 $ CNAME x" should generate
a single CNAME with the owner "19.example.com", but prior to the
overflow bug it generated several CNAMEs, half of them with large
negative values.
we now test for the bugfix by using "named-checkzone -D" and
grepping for a single CNAME in the output.
(cherry picked from commit bd814b79d4)
Ensure the update zone name is mentioned in the NOTAUTH error message
in the server log, so that it is easier to track down problematic
update clients. There are two cases: either the update zone is
unrelated to any of the server's zones (previously no zone was
mentioned); or the update zone is a subdomain of one or more of the
server's zones (previously the name of the irrelevant parent zone was
misleadingly logged).
Closes#3209
(cherry picked from commit 84c4eb02e7)
Historically, the inline keyword was a strong suggestion to the compiler
that it should inline the function marked inline. As compilers became
better at optimising, this functionality has receded, and using inline
as a suggestion to inline a function is obsolete. The compiler will
happily ignore it and inline something else entirely if it finds that's
a better optimisation.
Therefore, remove all the occurences of the inline keyword with static
functions inside single compilation unit and leave the decision whether
to inline a function or not entirely on the compiler
NOTE: We keep the usage the inline keyword when the purpose is to change
the linkage behaviour.
(cherry picked from commit 20f0936cf2)
Previously, the unreachable code paths would have to be tagged with:
INSIST(0);
ISC_UNREACHABLE();
There was also older parts of the code that used comment annotation:
/* NOTREACHED */
Unify the handling of unreachable code paths to just use:
UNREACHABLE();
The UNREACHABLE() macro now asserts when reached and also uses
__builtin_unreachable(); when such builtin is available in the compiler.
(cherry picked from commit 584f0d7a7e)
Gcc 7+ and Clang 10+ have implemented __attribute__((fallthrough)) which
is explicit version of the /* FALLTHROUGH */ comment we are currently
using.
Add and apply FALLTHROUGH macro that uses the attribute if available,
but does nothing on older compilers.
In one case (lib/dns/zone.c), using the macro revealed that we were
using the /* FALLTHROUGH */ comment in wrong place, remove that comment.
(cherry picked from commit fe7ce629f4)
The C17 standard deprecated ATOMIC_VAR_INIT() macro (see [1]). Follow
the suite and remove the ATOMIC_VAR_INIT() usage in favor of simple
assignment of the value as this is what all supported stdatomic.h
implementations do anyway:
* MacOSX.plaform: #define ATOMIC_VAR_INIT(__v) {__v}
* Gcc stdatomic.h: #define ATOMIC_VAR_INIT(VALUE) (VALUE)
1. http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p1138r0.pdf
(cherry picked from commit f251d69eba)
The clang-format-15 has new option InsertBraces that could add missing
branches around single line statements. Use that to our advantage
without switching to not-yet-released LLVM version to add missing braces
in couple of places.
The dns.query Python module has the send_tcp() method defined in both
dnspython 1.x and 2.x, so checking for the existence of that method to
determine the dnspython version available in the test environment does
not make any sense. Fix by checking the dns.version.MAJOR integer
instead.
The ability to conveniently mark tests which should only be run when the
CI_ENABLE_ALL_TESTS environment variable is set seems to be useful on a
general level and therefore it should not be limited to the "timeouts"
system test, where it is currently used.
pytest documentation [1] suggests to reuse commonly used test markers by
putting them all in a single Python module which then has to be imported
by test files that want to use the markers defined therein. Follow that
advice by creating a new bin/tests/system/pytest_custom_markers.py
Python module containing the relevant marker definitions.
Note that "import pytest_custom_markers" works from a test-specific
subdirectory because pytest modifies sys.path so that it contains the
paths to all parent directories containing a conftest.py file (and
bin/tests/system/ is one). PyLint does not like that, though, so add a
relevant PyLint suppression.
The above changes make bin/tests/system/timeouts/conftest.py redundant,
so remove it.
[1] https://docs.pytest.org/en/7.0.x/how-to/skipping.html#id1
(cherry picked from commit 00392921f0)
Ensure all "import dns.*" statements are always placed after
pytest.importorskip('dns') calls, in order to allow the latter to
fulfill their purpose. Explicitly import all dnspython modules used by
each dnspython-based test to avoid relying on nested imports. Replace
function-scoped imports with global imports to reduce code duplication.
(cherry picked from commit 49312d6bb2)
The intended purpose of the @pytest.mark.dnspython{,2} decorators was to
cause dnspython-based tests to be skipped if dnspython is not available
(or not recent enough). However, a number of system tests employing
those decorators contain global "import dns.resolver" statements which
trigger ImportError exceptions during test initialization if dnspython
is not available. In other words, the @pytest.mark.dnspython{,2}
decorators serve no useful purpose.
Currently, whenever a Python-based test requires dnspython, that
requirement applies to all tests in a given *.py file. Given that,
employ global pytest.importorskip() calls to ensure dnspython-based
parts of various system tests are skipped when dnspython is not
available. Remove all occurrences of the @pytest.mark.dnspython{,2}
decorators (and all associated code) to prevent confusion.
(cherry picked from commit 05c97f2329)
The intended purpose of the @pytest.mark.requests decorator was to cause
Python-based parts of the "statschannel" system test to be skipped if
the requests Python module is not available. However, both
tests-json.py and tests-xml.py contain a global "import requests"
statement which triggers ImportError exceptions during test
initialization if the requests module is not available. In other words,
the @pytest.mark.requests decorator serves no useful purpose.
Since all tests in both tests-json.py and tests-xml.py depend on the
requests Python module, employ pytest.importorskip() to ensure the
Python-based parts of the "statschannel" system test are skipped when
the requests module is not available. Remove all occurrences of the
@pytest.mark.requests decorator (and all associated code) to prevent
confusion.
(cherry picked from commit 704ad2907f)
All tests in bin/tests/system/statschannel/tests-xml.py require libxml2
support to be enabled in BIND 9 at build-time. Instead of applying the
same pytest.mark.skipif() decorator to every test in that file, set the
'pytestmark' global accordingly in order to immediately skip all tests
in tests-xml.py if libxml2 support is not compiled in.
Remove all occurrences of the @pytest.mark.xml decorator (and all
associated code) from the "statschannel" system test as the
xml.etree.ElementTree module is a part of the Python standard library
since Python 2.5 (so checking whether it is available is redundant) and
checking for libxml2 support in the tested BIND 9 build is already
handled by setting the 'pytestmark' global accordingly.
(cherry picked from commit 286b57c7f1)
All tests in bin/tests/system/statschannel/tests-json.py require json-c
support to be enabled in BIND 9 at build-time. Instead of applying the
same pytest.mark.skipif() decorator to every test in that file, set the
'pytestmark' global accordingly in order to immediately skip all tests
in tests-json.py if json-c support is not compiled in.
Remove all occurrences of the @pytest.mark.json decorator (and all
associated code) from the "statschannel" system test as the json module
is a part of the Python standard library since Python 2.6 (so checking
whether it is available is redundant) and checking for json-c support in
the tested BIND 9 build is already handled by setting the 'pytestmark'
global accordingly.
Also remove a related excerpt from bin/tests/system/rpzextra/conftest.py
as it is a copy-paste artifact that serves no purpose in the "rpzextra"
system test.
(cherry picked from commit 0a76f186a5)
The "statschannel" system test contains two Python helper modules:
- generic.py: test functions directly invoked by both tests-json.py
and test-xml.py,
- helper.py: helper functions invoked by test functions in generic.py.
The above logic for splitting helper functions into Python modules
prevents selective test skipping from working due to unconditional
import statements being present in both helper modules. For example, if
dnspython is not available on the test host, tests-json.py imports
generic.py, which in turn imports helper.py, which in turn attempts to
import various dnspython modules, triggering ImportError exceptions
during test initialization. Various decorators used for some tests
(like @pytest.mark.dnspython) suggest that such a scenario should be
handled gracefully, but that is not the case - modifying the test
collection in conftest.py does not prevent pytest from failing due to
import errors.
Fix by moving helper functions around to achieve a different split:
- generic.py: helper functions only relying on the Python standard
library,
- generic_dnspython.py: helper functions requiring dnspython.
Only two tests in tests-{json,xml}.py need dnspython to work
(test_traffic_json(), test_traffic_xml()). Since all
dnspython-dependent code is now present in generic_dnspython.py, employ
pytest.importorskip() in those two tests to ensure they can be
selectively skipped when dnspython is not available. Adjust other code
to account for the revised Python helper module layout. Remove all
occurrences of the @pytest.mark.dnspython decorator (and all associated
code) from the "statschannel" system test to prevent confusion.
(cherry picked from commit 96b7f9f9aa)
Most Python-based system tests need to know which ports were assigned to
a given test by bin/tests/system/get_ports.sh. This is currently
handled by inspecting the values of various environment variables (set
by bin/tests/system/run.sh) and passing the port numbers to Python
scripts via pytest fixtures. However, this glue code has so far been
copy-pasted into each system test using it, rather than reused.
Since pytest also looks for conftest.py files in parent directories,
move commonly used fixtures to bin/tests/system/conftest.py. Set the
scope of all the moved fixtures to "session" as their return values are
only based on environment variables, so there is no point in recreating
them for every test requesting them. Adjust test code accordingly.
(cherry picked from commit 53ef8835c1)
The named-checkzone(1) and named-compilezone(1) manual pages used to
refer to the description of wildcards in RFC 1034.
(cherry picked from commit 178aef5b8c)
Both utilities were included as one man page, but this caused a problem:
Sphinx directive .. include was used twice on the same file, which
prevented us from using labels (or anything with unique identifier) in
the man pages. This effectivelly prevented linking to them.
Splitting man pages allows us to solve the linking problems and also
clearly make text easier to follow because it does not mention two tools
at the same time.
This change causes duplication of text, but given the frequecy of changes
to these tools I think it is acceptable. I've considered deduplication
using smaller .rst snippets which get included into both man pages,
but it would require more sed scripting to handle defaults etc. and
I think it would be way too complex solution for this problem.
Related: #2799
(cherry picked from commit 9992f7808c)
Both utilities were included as one man page, but this caused a problem:
Sphinx directive .. include was used twice on the same file, which
prevented us from using labels (or anything with unique identifier) in
the man pages. This effectivelly prevented linking to them.
Splitting man pages allows us to solve the linking problems and also
clearly make text easier to follow because it does not mention two tools
at the same time.
This change causes duplication of text, but given the frequecy of changes
to these tools I think it is acceptable.
Related: #2799
(cherry picked from commit 2e42414522)
Previously, the function(s) in the commit subject could fail for various
reasons - mostly allocation failures, or other functions returning
different return code than ISC_R_SUCCESS. Now, the aforementioned
function(s) cannot ever fail and they would always return ISC_R_SUCCESS.
Change the function(s) to return void and remove the extra checks in
the code that uses them.
(cherry picked from commit d128656d2e)
Previously, the function(s) in the commit subject could fail for various
reasons - mostly allocation failures, or other functions returning
different return code than ISC_R_SUCCESS. Now, the aforementioned
function(s) cannot ever fail and they would always return ISC_R_SUCCESS.
Change the function(s) to return void and remove the extra checks in
the code that uses them.
(cherry picked from commit 8fa27365ec)
bad-ksk-without-zsk.conf only has a ksk defined without a
matching zsk for the same algorithm.
bad-zsk-without-ksk.conf only has a zsk defined without a
matching ksk for the same algorithm.
bad-unpaired-keys.conf has two keys of different algorithms
one ksk only and the other zsk only
(cherry picked from commit f23e86b96b)
Extend the timeouts system test to ensure that the maximum outgoing
transfer time (max-transfer-time-out) and maximum outgoing transfer idle
time (max-transfer-idle-out) works as expected. This is done by
lowering the limits to 5/1 minutes and testing that the connection has
been dropped while sleeping between the individual XFR messages.
(cherry picked from commit 8fed1b6461)
Extend the timeouts system test that bursts the queries for large TXT
record and never read any responses back filling up the server TCP write
buffer. The test should work with the default wmem_max value on
Linux (208k).
(cherry picked from commit b735182ae0)
The isc_thread_setaffinity call was removed in !5265 and we are not
going to restore it because it was proven that the performance is better
without it. Additionally, remove the already disabled cpu system test.
The isc_thread_setconcurrency function is unused and also calling
pthread_setconcurrency() on Linux has no meaning, formerly it was
added because of Solaris in 2001 and it was removed when taskmgr was
refactored to run on top of netmgr in !4918.
(cherry picked from commit 0500345513)
the dlzexternal test driver now includes ECS, if present in the
query, in the TXT record returned for QNAME "source-addr".
(cherry picked from commit 79ddedabf8)
Apparently we forgot about DLZ when updating DNS_CLIENTINFO_VERSION
constant for ECS, which is at value "3" since ECS was introduced.
The code in example drivers and tests now hardcodes version numbers
2 (without ECS) and 3 (with ECS) depending on what a given code path
requires.
(cherry picked from commit f81debe1c8)
Commit c787a539d2 fixed a certain class of
intermittent system test failures caused by named instances unable to
restart. The root cause was bin/tests/system/stop.pl returning without
waiting for a named instance to remove its lock file.
Later on, it turned out that the above change causes other issues on
Windows due to the way named handles signals on that platform. Commit
761ba4514f intended to address those
issues by making the server_lock_file() subroutine in
bin/tests/system/stop.pl return an empty value on Windows, in order to
prevent the script for waiting for lock file cleanup on that platform.
Note, however, that Windows detection in that subroutine is limited to
checking whether the CYGWIN environment variable is set.
While that environment variable was not set on Unix-like systems before
commit 761ba4514f, another commit
(a33237f070, merged a few weeks later)
changed that by setting the CYGWIN environment variable to an empty
value on Unix-like systems. This made the defined($ENV{'CYGWIN'}) check
in server_lock_file() return true, inadvertently preventing
bin/tests/system/stop.pl from waiting for lock file removal before
exiting on Unix-like systems and therefore reintroducing the original
issue.
Fix by making server_lock_file() only return an empty value when the
CYGWIN environment variable is set to a non-empty value (which is what
bin/tests/system/conf.sh.win32 does). Adjust a similar check in the
pid_file_exists() subroutine in the same way for consistency.
(cherry picked from commit a938db2170)
The echo_*() and cat_*() functions in bin/tests/system/conf.sh.common
call the "read" builtin command without specifying the field separator
to use. This results in leading whitespace getting stripped from each
line of the texts passed to those functions, which mangles e.g. pytest
output, hindering test failure troubleshooting.
Address by setting IFS to an empty value for the "read" calls used in
the aforementioned helper functions.
(cherry picked from commit fb87022115)
The bin/tests/system/start.pl script truncates the named.run file for a
given named instance unless it is invoked with the --restart
command-line option. Ever since Python-based tests were introduced,
bin/tests/system/run.sh may start named instances used by a given system
test multiple times within a single run, causing the
bin/tests/system/start.pl script to truncate some of the log files
written during the test. This makes troubleshooting certain test
failures hard or even impossible.
Fix by calling bin/tests/system/start.pl with the --restart command-line
option for every start_servers() invocation except the first one.
(cherry picked from commit 65abbca79b)
When failure is expected, the `rndc` command in the catz system test
is being called directly instead of using a function, i.e.:
$RNDC -c ../common/rndc.conf -s 10.53.0.2 -p 9953 reconfig \
> /dev/null 2>&1 && ret=1
... instead of:
rndccmd 10.53.0.2 reconfig && ret=1
This is done to suppress messages like "lt-rndc: 'reconfig' failed:
failure" appearing in the message log of the test, because failure
is actually expected, and the appearance of that message can be
confusing.
The port value used in this case is not correct, making the
`rndc reload` command to fail. This error was not detected earlier
only because the failure of the command is actually expected, but
the failure happens for a "wrong" reason, and the test still passes.
Fix the error by using the existing variable instead of the fixed
number.
(cherry picked from commit 5f9d4b5db4)
Test the view reverting code by introducing a faulty dlz configuration
in named.conf and using `rndc reconfig` to check if named handles the
situation correctly.
We use "dlz" because the dlz processing code is located in an ideal
place in the view configuration function for the test to cover the
view reverting code.
This test is specifically added to the catz system test to additionally
cover the catz reconfiguration during the mentioned failed
reconfiguration attempt.
(cherry picked from commit 62337d433f)
If a view configuration error occurs during a named reconfiguration
procedure, BIND can end up having twin views (old and new), with some
zones and internal structures attached to the old one, and others
attached to the new one, which essentially creates chaos.
Implement some additional view reverting mechanisms to avoid the
situation described above:
1. Revert rpz configuration.
2. Revert catz configuration.
3. Revert zones to view attachments.
(cherry picked from commit 3697560f04)
This commit converts the license handling to adhere to the REUSE
specification. It specifically:
1. Adds used licnses to LICENSES/ directory
2. Add "isc" template for adding the copyright boilerplate
3. Changes all source files to include copyright and SPDX license
header, this includes all the C sources, documentation, zone files,
configuration files. There are notes in the doc/dev/copyrights file
on how to add correct headers to the new files.
4. Handle the rest that can't be modified via .reuse/dep5 file. The
binary (or otherwise unmodifiable) files could have license places
next to them in <foo>.license file, but this would lead to cluttered
repository and most of the files handled in the .reuse/dep5 file are
system test files.
(cherry picked from commit 58bd26b6cf)
