In order to not pollute the SERVFAIL cache with the configured
SERVFAIL answers while RPZ is loading, set the NS_CLIENTATTR_NOSETFC
attribute for the client.
Merge branch 'aram/rpz-servfail-until-ready-tunings' into 'main'
Aram Sargsyan [Wed, 27 Aug 2025 15:25:43 +0000 (15:25 +0000)]
Log the servfail-until-ready message not faster than once per second
Since the log level has been raised, busy servers can "explode" from
the amount of log messages. Use the usual practice of logging "every
once in a while".
Aram Sargsyan [Wed, 27 Aug 2025 14:35:09 +0000 (14:35 +0000)]
Change the "RPZ not ready yet" message and its log level
The "RPZ not ready yet" message is logged at debug 3 level. Use the
info level instead for better visibility.
After raising the log level, the rpz_log_fail_helper() function starts
appending " failed: " the the message. Change the log message so it
makes more sense.
In order to not pollute the SERVFAIL cache with the configured
SERVFAIL answers while RPZ is loading, set the NS_CLIENTATTR_NOSETFC
attribute for the client.
Mark Andrews [Tue, 2 Sep 2025 23:41:18 +0000 (09:41 +1000)]
fix: usr: RPZ canonical warning displays zone entry incorrectly
When an IPv6 rpz prefix entry is entered incorrectly the log
message was just displaying the prefix rather than the full
entry. This has been corrected.
Closes #5491
Merge branch '5491-rpz-canonical-warning-displays-zone-entry-incorrectly' into 'main'
The counter in ns_client_t is used to track the maximum number of
recursions in the resolver, but it is created unconditionally when
starting the client and deallocated when resetting it.
This commit defers the allocation of the counter till recursion needs to
actually happen, speeding up authoritative workloads in perflab by
1.5~2%.
Merge branch 'alessio/lazy-fetch-counter-alloc' into 'main'
Alessio Podda [Sat, 30 Aug 2025 07:21:20 +0000 (09:21 +0200)]
Lazily allocate fetch counter
The counter in ns_client_t is used to track the maximum number of
recursions in the resolver, but it is created unconditionally when
starting the client and deallocated when resetting it.
This commit defers the allocation of the counter till recursion needs to
actually happen, speeding up authoritative workloads in perflab by
1.5~2%.
Michał Kępień [Mon, 1 Sep 2025 20:29:23 +0000 (22:29 +0200)]
rem: usr: Obsolete the "tkey-domain" statement
Mark the ``tkey-domain`` statement as obsolete, since it has not had any
effect on server behavior since support for TKEY Mode 2 (Diffie-Hellman)
was removed (in BIND 9.20.0).
See #4204
Merge branch '4204-obsolete-tkey-domain' into 'main'
Michał Kępień [Mon, 1 Sep 2025 19:35:33 +0000 (21:35 +0200)]
Obsolete the "tkey-domain" statement
The "tkey-domain" statement has effectively been a no-op since commit bd4576b3cef88bcb78ae0dd7619019be4fdfb2ea, which removed the only bit of
code using it: the logic implementing TKEY Mode 2 (Diffie-Hellman).
Michał Kępień [Mon, 1 Sep 2025 19:33:33 +0000 (21:33 +0200)]
rem: usr: Deprecate the "tkey-gssapi-credential" statement
The :any:`tkey-gssapi-keytab` statement allows GSS-TSIG to be set up in
a simpler and more reliable way than using the
:any:`tkey-gssapi-credential` statement and setting environment
variables (e.g. ``KRB5_KTNAME``). Therefore, the
:any:`tkey-gssapi-credential` statement has been deprecated;
:any:`tkey-gssapi-keytab` should be used instead.
For configurations currently using a combination of both
:any:`tkey-gssapi-keytab` *and* :any:`tkey-gssapi-credential`, the
latter should be dropped and the keytab pointed to by
:any:`tkey-gssapi-keytab` should now only contain the credential
previously specified by :any:`tkey-gssapi-credential`.
See #4204
Merge branch '4204-deprecate-tkey-gssapi-credential' into 'main'
Michał Kępień [Mon, 1 Sep 2025 19:23:30 +0000 (21:23 +0200)]
Deprecate the "tkey-gssapi-credential" statement
The "tkey-gssapi-keytab" statement enables GSS-TSIG to be set up in a
simpler and more reliable way than using the "tkey-gssapi-credential"
statement and setting environment variables (e.g. KRB5_KTNAME).
Mark the "tkey-gssapi-credential" statement as deprecated to eventually
only have one method for setting up GSS-TSIG in named. Do not mention
"tkey-gssapi-credential" in the section of the ARM on dynamic updates.
Ondřej Surý [Wed, 27 Aug 2025 12:05:30 +0000 (14:05 +0200)]
Always scan all the slab headers when adding new entry
The existing logic would always scan the headers if:
- adding negative cache entry that's NXDOMAIN or negative RRSIG
- adding positive cache entry
- the type doesn't exist in the node
As the rest is relatively minor - we only delete rrset from resolver
on broken chain and most negative entries don't exist in the case
anyway, it feels like the extra logic to decide whether we should do
full scan or not is just complicating things.
Remove the extra logic and always scan all the slabtop/slabheaders in
the node when adding new entry into the cache.
Ondřej Surý [Wed, 27 Aug 2025 04:58:39 +0000 (06:58 +0200)]
Refactoring in qpcache.c:add()
There were several consequtive foreach loops when adding new entry into
the cache. Merge the multiple foreach loops into a single pass loop
with some effort and a lot of comments.
Ondřej Surý [Thu, 21 Aug 2025 06:56:29 +0000 (08:56 +0200)]
Remove double non-NULL guard around bindrdataset()
The bindrdataset() already has a logic to skip the rest of the function
if the passed rdataset is NULL. Remove the external guarding for
'addedrdataset' to simplify the code flow both from the zone and cache
databases.
Colin Vidal [Thu, 28 Aug 2025 15:30:57 +0000 (17:30 +0200)]
chg: dev: move handle to keystores from the view to zonemgr
This is a follow-up of !10895 where the keystore pointer was removed
from the zone (as not specific to the zone) and moved to the view. But
in order to avoid adding extra lifecycle dependencies from the zone to
the view, the keystore pointer is now moved to the zonemgr, which also
makes more sense as this is a global settings, and zonemgr wraps a bunch
of other global settings to be accessibles from the zones.
Because the zonemgr lifecycle is the same of the keystores (which are
both depending on named_g_server) this should be a safe change.
Merge branch 'colin/keystores-zonemgr' into 'main'
Colin Vidal [Wed, 27 Aug 2025 12:52:07 +0000 (14:52 +0200)]
move handle to keystores from the view to zonemgr
This is a follow-up of !10895 where the keystore pointer was removed
from the zone (as not specific to the zone) and moved to the view. But
in order to avoid adding extra lifecycle dependencies from the zone to
the view, the keystore pointer is now moved to the zonemgr, which also
makes more sense as this is a global settings, and zonemgr wraps a bunch
of other global settings to be accessibles from the zones.
Because the zonemgr lifecycle is the same of the keystores (which are
both depending on named_g_server) this should be a safe change.
Ondřej Surý [Thu, 28 Aug 2025 14:24:08 +0000 (16:24 +0200)]
fix: dev: Add and use __attribute__((nonnull)) in dnssec-signzone.c
Clang 20 was spuriously warning about the possibility of passing a NULL file pointer
to `fprintf()`, which uses the 'nonnull' attribute. To silence the warning, the functions
calling `fprintf()` have been marked with the same attribute to assure that NULL can't be
passed to them in the first place.
Close #5487
Merge branch '5487-mark-passed-file-pointer-as-nonnull-in-dnssec-signzone' into 'main'
Ondřej Surý [Thu, 21 Aug 2025 21:51:38 +0000 (23:51 +0200)]
Add and use __attribute__((nonnull)) in dnssec-signzone.c
Clang 20 is complaining about passing NULL to an argument with 'nonnull'
attribute. Mark these two functions with the same attribute to assure
that these two function also don't accept NULL as an argument.
Petr Špaček [Tue, 1 Jul 2025 09:12:15 +0000 (11:12 +0200)]
Test command line tools without stdio fds
Testing all combinations seems unnecessary but is cheap.
I was too lazy to run this against all tools we have. nsupdate was
chosen because it is one of few tools which actually use stdin and the
original issue was reproducible even without any network communication,
which was not the case for simple dig invocation.
Sorry for new shell test but doing this in Python seemed very
complicated and fragile.
Arаm Sаrgsyаn [Wed, 27 Aug 2025 16:16:05 +0000 (16:16 +0000)]
fix: usr: Fix a catalog zone issue when having an unset 'default-primaries' configuration clause
A catalog zone with an unset ``default-primaries`` clause could cause
an unexpected termination of the :iscman:`named` process after two
reloading or reconfiguration commands. This has been fixed.
Closes #5494
Merge branch '5494-catz-crash-with-unset-default-primaries-and-double-reconfig' into 'main'
Aram Sargsyan [Tue, 26 Aug 2025 14:58:32 +0000 (14:58 +0000)]
Fix a bug in configure_catz_zone()
When dns_catz_zone_add() returns ISC_R_EXISTS and there is no
'default-primaries' or 'default-masters', the ISC_R_EXISTS result
code doesn't get reset to ISC_R_SUCCESS, and the function returns
ISC_R_EXISTS instead of ISC_R_SUCCESS. Which means that the zone
is successfully added, but the caller assumes that the function has
failed.
Reset 'result' to ISC_R_SUCCESS when dns_catz_zone_add() returns
ISC_R_EXISTS (it's not an error condition).
Refactor the code go call dns_catz_zone_add() when all other error
conditions are already checked.
Ondřej Surý [Wed, 27 Aug 2025 09:53:13 +0000 (11:53 +0200)]
chg: dev: Rewrite the bit rotate functions using __builtin or generic
In gcc 15, __builtin_stdc_rotate_{left,right} was added. Use these
builtins when available otherwise rewrite the ISC_ROTATE_LEFT and
ISC_ROTATE_RIGHT using _Generic.
Merge branch 'ondrej/use-__builtin_stdc_rotate_left_right' into 'main'
Ondřej Surý [Tue, 26 Aug 2025 05:31:07 +0000 (07:31 +0200)]
Rewrite the bit rotate functions using __builtin or generic
In gcc 15, __builtin_stdc_rotate_{left,right} was added. Use these
builtins when available otherwise rewrite the ISC_ROTATE_LEFT and
ISC_ROTATE_RIGHT using _Generic.
Colin Vidal [Wed, 27 Aug 2025 09:01:15 +0000 (11:01 +0200)]
chg: dev: move keystores handle from the zone to the view
The list of keystores is owned by the single server object
(named_g_server), but dns_zone_t has a pointer into it in order to
preserve encapsulation (lib/dns won't link to bin/named for good
reasons).
However, getting the keystores from the zone uses the zone lock whereas
this is not needed (as the pointer value doesn't depends on the zone,
and is initialized only with the same named_g_server->keystores value);
also storing an extra pointer per zone is not needed; also, there was a
logic based on the zone->secure property which was not needed (as there
is only one keystore).
The keystores pointer is now accessible and lock-free at view level,
it also simplifies a bit the various zone configuration APIs (server.c,
zoneconf.c).
Merge branch 'colin/move-keystore-to-view' into 'main'
Colin Vidal [Tue, 26 Aug 2025 13:05:55 +0000 (15:05 +0200)]
move keystores handle from the zone to the view
The list of keystores is owned by the single server object
(named_g_server), but dns_zone_t has a pointer into it in order to
preserve encapsulation (lib/dns won't link to bin/named for good
reasons).
However, getting the keystores from the zone uses the zone lock whereas
this is not needed (as the pointer value doesn't depends on the zone,
and is initialized only with the same named_g_server->keystores value);
also storing an extra pointer per zone is not needed; also, there was a
logic based on the zone->secure property which was not needed (as there
is only one keystore).
The keystores pointer is now accessible and lock-free at view level,
it also simplifies a bit the various zone configuration APIs (server.c,
zoneconf.c).
Ondřej Surý [Tue, 26 Aug 2025 16:18:12 +0000 (18:18 +0200)]
Don't preserve cache entries if new TTL is smaller than existing
Under certain circumstances, cache entries with equivalent rdataset
might not get replaced. Previously such entry would get preserved
regardless of the new TTL and expire time on the existing header would
get updated when the expire time was less than the expire time on the
existing header. Change the logic to preserve the existing header only
if the new expire time is larger than the existing one and replace the
existing cache entry when the new expire time is less than the existing
one.
Ondřej Surý [Tue, 26 Aug 2025 14:35:53 +0000 (16:35 +0200)]
chg: dev: Improve C23 compatibility
Use C23 stdckdint.h when available and define ckd_{mul,add,sub} shims to __builtin_{mul,add,sub}_overflow(). Require all the __builtin functions to be supported to further simplify the non-C23 implementation. Rename the <stdbit.h>-shims in <isc/bit.h> to their C23 names.
Merge branch 'ondrej/use-stdckdint.h-if-available' into 'main'
Ondřej Surý [Tue, 5 Aug 2025 06:19:20 +0000 (08:19 +0200)]
Simplify add/sub/mul overflow checks
Use C23 stdckdint.h when available and define ckd_{mul,add,sub} shims to
__builtin_{mul,add,sub}_overflow(). Require the __builtin functions
unconditionally.
These are generally available on our supported platform, and also we use
some of these unconditionally anyway in qp.c. Thus make the support for
these functions mandatory so we fail early in the 'setup' step.
Petr Špaček [Mon, 25 Aug 2025 16:04:33 +0000 (18:04 +0200)]
Reverse config grammar checks and docs builds
Make grammar check in CI more user friendly. Previously Sphinx docs
build might have failed because outdated grammar files and this would
have prevented CI from generating grammar file patch.
Ondřej Surý [Tue, 26 Aug 2025 07:46:14 +0000 (09:46 +0200)]
fix: dev: Update fxhash constants
The fxhash implementation was missing a constant for 32-bit platforms.
This has been fixed. Constant for 64-bit platform was update to match
the current Rust constants.
Merge branch 'ondrej/update-fxhash-constants' into 'main'
Ondřej Surý [Tue, 26 Aug 2025 05:56:03 +0000 (07:56 +0200)]
Update fxhash constants
The fxhash implementation was missing a constant for 32-bit platforms.
This has been fixed. Constant for 64-bit platform was update to match
the current Rust constants.
Ondřej Surý [Tue, 26 Aug 2025 07:40:53 +0000 (09:40 +0200)]
fix: dev: Allow negative RRSIGs in the qpcache again
The previous refactoring added an assertion failure when negative RRSIG
would be added to the cache database. As result, any query for RRSIG in
any unsigned zone would trigger that assertion failure.
Allow the negative RRSIG entries to be stored in the cache database
again as not caching these would trigger new remote fetch every time
such query would be received from a client.
Closes #5489
Merge branch '5489-allow-negative-RRSIGs-in-qpcache' into 'main'
Ondřej Surý [Thu, 21 Aug 2025 06:56:29 +0000 (08:56 +0200)]
Allow negative RRSIGs in the qpcache again
The previous refactoring added an assertion failure when negative RRSIG
would be added to the cache database. As result, any query for RRSIG in
any unsigned zone would trigger that assertion failure.
Allow the negative RRSIG entries to be stored in the cache database
again as not caching these would trigger new remote fetch every time
such query would be received from a client.
Aydın Mercan [Mon, 25 Aug 2025 12:08:44 +0000 (15:08 +0300)]
fix: dev: switch bit rotation functions to statement expressions
Using `static inline` functions in the headers break gcov as it cannot
properly track the hits. To fix the issue, convert the expressions to
statement macros. The added static assertions will ensure integer
promotion cannot occur unlike its previous function counterpart.
Aydın Mercan [Thu, 21 Aug 2025 12:24:40 +0000 (15:24 +0300)]
switch bit rotation functions to statement expressions
Using `static inline` functions in the headers break gcov as it cannot
properly track the hits. To fix the issue, convert the expressions to
statement macros. The added static assertions will ensure integer
promotion cannot occur unlike its previous function counterpart.
Arаm Sаrgsyаn [Fri, 22 Aug 2025 18:37:20 +0000 (18:37 +0000)]
new: usr: Add a new 'servfail-until-ready' configuration option for RPZ
By default, when :iscman:`named` is started it may start answering to
queries before the response policy zones are completely loaded
and processed. This new feature gives an option to the users to
tell :iscman:`named` that incoming requests should result in SERVFAIL answer
until all the response policy zones are processed and ready. Note that if
one or more response policy zones fail to load, :iscman:`named` starts
responding to queries according to those zones that did load.
Closes #5222
Merge branch '5222-stop-sending-responses-until-rpz-is-ready' into 'main'
Aram Sargsyan [Fri, 8 Aug 2025 12:24:47 +0000 (12:24 +0000)]
Test the new 'servfail-until-ready' option
Test whether 'servfail-until-ready yes' works by enabling slow
RPZ loading with a USDT probe activation, and checking that named
returns SERVFAIL during the initial RPZ zones processing stage.
The test requires SystemTap (stap, dtrace) to activate the USDT
probe.
Aram Sargsyan [Mon, 19 May 2025 17:11:57 +0000 (17:11 +0000)]
Add a new 'servfail-until-ready' configuration option for RPZ
By default, when named is started it may start answering to
queries before the response policy zones are completely loaded
and processed. This new feature gives an option to the users to
tell named that incoming requests should result in SERVFAIL anwser
until all the response policy zones are procesed and ready.
Aram Sargsyan [Fri, 8 Aug 2025 12:08:55 +0000 (12:08 +0000)]
Add 'first_time' member to 'dns_rpz_zones_t'
During the initial configuration of named after startup, 'first_time'
is true. This is needed for implementing the new 'servfail-until-ready'
configuration option, which should take into effect only during the
initial configuration.
Matthijs Mekking [Thu, 21 Aug 2025 15:18:15 +0000 (15:18 +0000)]
new: usr: Add manual mode configuration option to dnsec-policy
Add a new option ``manual-mode`` to :any:`dnssec-policy`. The intended use is that if it is enabled, it will not automatically move to the
next state transition, but instead the transition is logged. Only after manual confirmation with ``rndc dnssec -step`` the transition is made.
Closes #4606
Merge branch '4606-dnssec-policy-dry-run' into 'main'
Matthijs Mekking [Wed, 20 Aug 2025 13:41:13 +0000 (15:41 +0200)]
Test manual-mode error case
If we hit an error when issuing an 'rndc dnssec -step' command, and the
keymgr runs again at a later scheduled time, we don't want to enforce
transitions.
Parametrize each test case and in case of manual-mode, execute
additional checks. First a keymgr run should not change the existing
key state (with exceptions of timing events such as moving from
RUMOURED to OMNIPRESENT, and from UNRETENTIVE to HIDDEN). Appropriate
messages must be logged.
After enforcing the next step with 'rndc dnssec -step', the key state
should be the same as if the step were to be taken automatically.
Parametrize each test case and in case of manual-mode, execute
additional checks. First a keymgr run should not change the existing
key state (with exceptions of timing events such as moving from
RUMOURED to OMNIPRESENT, and from UNRETENTIVE to HIDDEN). Appropriate
messages must be logged.
After enforcing the next step with 'rndc dnssec -step', the key state
should be the same as if the step were to be taken automatically.
Parametrize each test case and in case of manual-mode, execute
additional checks. First a keymgr run should not change the existing
key state (with exceptions of timing events such as moving from
RUMOURED to OMNIPRESENT, and from UNRETENTIVE to HIDDEN). Appropriate
messages must be logged.
After enforcing the next step with 'rndc dnssec -step', the key state
should be the same as if the step were to be taken automatically.
Parametrize each test case and in case of manual-mode, execute
additional checks. First a keymgr run should not change the existing
key state (with exceptions of timing events such as moving from
RUMOURED to OMNIPRESENT, and from UNRETENTIVE to HIDDEN). Appropriate
messages must be logged.
After enforcing the next step with 'rndc dnssec -step', the key state
should be the same as if the step were to be taken automatically.
Parametrize each test case and in case of manual-mode, execute
additional checks. First a keymgr run should not change the existing
key state (with exceptions of timing events such as moving from
RUMOURED to OMNIPRESENT, and from UNRETENTIVE to HIDDEN). Appropriate
messages must be logged.
After enforcing the next step with 'rndc dnssec -step', the key state
should be the same as if the step were to be taken automatically.
Similar to the previous commit that tests CSK algorithm rollover.
Parametrize each test case and in case of manual-mode, execute
additional checks. First a keymgr run should not change the existing
key state (with exceptions of timing events such as moving from
RUMOURED to OMNIPRESENT, and from UNRETENTIVE to HIDDEN). Appropriate
messages must be logged.
After enforcing the next step with 'rndc dnssec -step', the key state
should be the same as if the step were to be taken automatically.
Update check_rollover_step to return the found keys. This can be used
to test that keymgr-manual-mode messages are correctly logged.
Parametrize each test case and in case of manual-mode, execute
additional checks. First a keymgr run should not change the existing
key state (with exceptions of timing events such as moving from
RUMOURED to OMNIPRESENT, and from UNRETENTIVE to HIDDEN). Appropriate
messages must be logged.
After enforcing the next step with 'rndc dnssec -step', the key state
should be the same as if the step were to be taken automatically.
Key state transitions may be blocked by manual-mode, meaning key
timing metadata may not be respected and can be inaccurate. For these
tests use the state values to determine whether the DNSKEY/CDS/CDNSKEY
RRset must be published or not.
If so we also want to tickle the apex because DNSKEY/CDNSKEY/CDS
RRsets may need to be re-signed.
Note that this may be overzealous, because if state transitions
happen just because of timing events (RUMOURED -> OMNIPRESENT,
UNRETENTIVE -> HIDDEN) this would have to cause changes in the
zone DNSSEC records.
Matthijs Mekking [Wed, 19 Mar 2025 16:10:25 +0000 (17:10 +0100)]
Implement manual-mode for kasp
When a key retire, key generation/introduction, or a state transition
to RUMOURED/UNRETENTIVE should happen, instead they are logged.
When those logs look good, you can run 'rndc dnssec -step' to run the
keymgr and apply those steps.
Matthijs Mekking [Mon, 17 Feb 2025 11:05:25 +0000 (12:05 +0100)]
Add manual-mode config option
Add a new option 'manual-mode' to 'dnssec-policy'. The intended
use is that if it is enabled, it will not automatically move to the
next state transition (RUMOURED, UNRETENTIVE), only after manual
confirmation. The intended state transition should be logged.
Matthijs Mekking [Tue, 19 Aug 2025 14:07:21 +0000 (14:07 +0000)]
new: test: Test migrating to dnsec-policy
Various test cases where legacy keys exist and are used to migrate to 'dnssec-policy'. These once existed as shell script but were removed because 'auto-dnssec' was removed. But the test cases are still useful if one wants to migrate to 'dnssec-policy' with such legacy keys, so it would be good to resurrect these tests.
Closes #3769
Merge branch '3769-migrate-zsk-ksk-plit' into 'main'
Various test cases where legacy keys exist and are used to migrate to
dnssec-policy. These once existed as shell script but were removed
because auto-dnssec was removed. But the test cases are still useful
if one wants to migrate to dnssec-policy with such legacy keys.
When migrating to dnssec-policy, keys that do not match will not have
a lifetime set. Adjust the test code to allow for that. Setting '-'
in a key properties string signals lifetime is expected not to be set.
projects / thirdparty / bind9.git / log
