Because dns_resolver_createfetch() locks the view, it was necessary
to unlock the zone in zone_refreshkeys() before calling it in order
to maintain the lock order, and relock afterward. this permitted a race
with dns_zone_synckeyzone().
This commit moves the call to dns_resolver_createfetch() into a separate
function which is called asynchronously after the zone has been
unlocked.
The keyfetch object now attaches to the zone to ensure that
it won't be shut down before the asynchronous call completes.
This necessitated refactoring dns_zone_detach() so it always runs
unlocked. For managed zones it now schedules zone_shutdown() to
run asynchronously, and for unmanaged zones, it requires the last
dns_zone_detach() to be run without loopmgr running.
The NetBSD system allocator is in fact based on the jemalloc, but it
doesn't export the extended interface, so we can't use that. Remove
the jemalloc enforcement for the NetBSD.
when more than one event was scheduled in the isc_aysnc queue,
they were executed in reverse order. we need to pull events
off the back of queue instead the front, so that uv_loop will
run them in the right order.
note that isc_job_run() has the same behavior, because it calls
uv_idle_start() directly. in that case we just document it so
it'll be less surprising in the future.
the dupsigs test is prone to failing on slow CI machines
because the first test can occur before the zone is fully
signed.
instead of just waiting ten seconds arbitrarily, we now
check every second, and allow up to 30 seconds before giving
up.
Instead of doing incremental zone loading with fixed quantum - 100
loaded lines per event, move the zone loading process to the offloaded
libuv threads using isc_work_enqueue() API.
This has the advantage that the thread scheduling is given back to the
operating system that understands blocking operations, and the zone
loading operation doesn't block the networking threads directly.
Incremental file loads now use loopmgr events instead of task events.
The dns_master_loadstreaminc(), _loadbufferinc(), _loadlexer() and
_loadlexerinc() functions were not used in BIND, and have been removed.
Checks that malformed _dns SVCB records are rejected unless
check-svcb is set to no, in which case they are accepted. Both
missing ALPN and missing DOHPATH are checked for.
_dns SVBC records have additional constrains which should be checked
when records are being added. This adds those constraint checks but
allows the user to override them using 'check-svcb no'.
dns_rdata_checksvcb performs data entry checks on SVCB records.
In particular that _dns SVBC record have an 'alpn' and if that 'alpn'
parameter indicates HTTP is in use that 'dophath' is present.
The wrong tls configuration was picked here. It should be of the
primary that is selected by forward->which, not zone->curprimary.
This bug may cause BIND to select the wrong primary when retrieving
the TLS settings, or cause a crash in case the wrongly selected primary
has no TLS settings.
Add a new upforwd system test that checks if update forwarding still
works if the first primary is badly configured.
We cannot reuse the 'example.' zone for this test because that
checks if update forwarding works for DoT. What transport is used
in the new test is of no relevance.
Update the system test to use different known good file names for
the different zones that are being tested.
Use the ALGORITHM_SET option to use randomly selected default algorithm
in this test. Make sure the test works by using variables instead of
hard-coding values.
Use the get_algorithms.py script to detect supported algorithms and
select random algorithms to use for the tests.
Make sure to load common.conf.sh after KEYGEN env var is exported.
Multiple algorithm sets can be defined in this script. These can be
selected via the ALGORITHM_SET environment variable. For compatibility
reasons, "stable" set contains the currently used algorithms, since our
system tests need some changes before being compatible with randomly
selected algorithms.
The script operation is similar to the get_ports.py - environment
variables are created and then printed out as `export NAME=VALUE`
commands, to be interpreted by shell. Once we support pytest runner for
system tests, this should be a fixture instead.
Certain variables have to be exported in order for the system tests to
work. It makes little sense to export the variables in one place/script
while they're defined in another place.
Since it makes no harm, export all the variables to make the behaviour
more predictable and consistent. Previously, some variables were
exported as environment variables, while others were just shell
variables which could be used once the configuration was sourced from
another script. However, they wouldn't be exposed to spawned processes.
For simplicity sake (and for the upcoming effort to run system tests
with pytest), export all variables that are used. TESTS, PARALLEL_UNIX
and SUBDIRS variables are automake-specific, aren't used anywhere else
and thus not exported.
The only variable really needed for the script to work is the path to
the $KEYGEN binary. Allow setting this via an environment variable to
avoid loading conf.sh (and causing a chicken-egg problem). Also make
testcrypto.sh executable to allow its use from conf.sh.
There are three levels there for the port value, with increasing
priority:
1. The default ports, defined by 'port' and 'tls-port' config options.
2. The primaries-level default port: primaries port <number> { ... };
3. The primaries element-level port: primaries { <address> port
<number>; ... };"
In 'named_config_getipandkeylist()', the 'def_port' and 'def_tlsport'
variables are extracted from level 1. The 'port' variable is extracted
from the level 2. Currently if that is unset, it defaults to the
default port ('def_port' or 'def_tlsport' depending on the transport
used), but overrides the level 2 port setting for the next primaries in
the list.
Update the code such that we inherit the port only if the level 3 port
is not set, and inherit from the default ports if the level 2 port is
also not set.
Add a test case that if the first primary fails, the fallback of a
second primary on plain DNS works. This is mainly to test that the port
configuration inheritance works correctly.
