Matthijs Mekking [Wed, 31 Jan 2024 08:33:17 +0000 (09:33 +0100)]
dnssec-keygen man page still says it can do TSIG
Remove text in man page that says the program can also be used for
generate TSIG keys, this was removed in 9.13.0 but this text was still
not yet removed.
Evan Hunt [Tue, 31 Oct 2023 10:21:33 +0000 (11:21 +0100)]
check range of fetch-quota-param parameters
the 'low', 'high' and 'discount' parameters to 'fetch-quota-param'
are meant to be ratios with values between zero and one, but higher
values can be assigned. this could potentially lead to an assertion
in maybe_adjust_quota().
Aram Sargsyan [Fri, 19 Jan 2024 14:26:17 +0000 (14:26 +0000)]
fix another message parsing regression
The fix for CVE-2023-4408 introduced a regression in the message
parser, which could cause a crash if an rdata type that can only
occur in the question was found in another section.
Use 'dns__message_putassociatedrdataset()' instead of
'dns__message_puttemprdataset()', because after calling the
'dns_rdatalist_tordataset()' function earlier the 'rdataset'
is associated.
Evan Hunt [Tue, 16 Jan 2024 23:58:53 +0000 (15:58 -0800)]
fix a message parsing regression
the fix for CVE-2023-4408 introduced a regression in the message
parser, which could cause a crash if duplicate rdatasets were found
in the question section. this commit ensures that rdatasets are
correctly disassociated and freed when this occurs.
Matthijs Mekking [Fri, 26 Jan 2024 10:57:25 +0000 (11:57 +0100)]
Make max search depth variable in kasp system test
In the second test we are looking for key files and extract the key
id numbers. Because keys can be in different directories, we needed
to change the maxdepth when searching for keys.
For the second kasp system test, check that 'dnssec-keygen -k' (default
policy) creates valid files, the 'get_keyids' returned more than one
keytag, namely the ones that are inside the keys/ directory, that were
created for the predecessor test, check that 'dnssec-keygen -k'
(configuredd policy) creates valid files.
This caused the system test to spew out errors that key files were
missing (we were looking for key files in the current directory, but
when looking for key id numbers we included the keys/ directory). It
could also cause the next test to fail, check that 'dnssec-settime' by
default does not edit key state file, because the STATE_FILE environment
variable was overwritten with the key file path of one of the keys that
were created with the configured policy.
We fix this by adjusting the maxdepth for the test in question. Other
tests don't need adjusting because they use unique zone names.
Matthijs Mekking [Fri, 17 Nov 2023 16:09:00 +0000 (17:09 +0100)]
Refactor dns_keystore_directory()
Add a default key-directory parameter to the function that can
be returned if there is no keystore, or if the keystore directory
is NULL (the latter is also true for the built-in keystore).
Matthijs Mekking [Fri, 17 Nov 2023 09:45:05 +0000 (10:45 +0100)]
Better PKCS#11 label creation
When using the same PKCS#11 URI for a zone that uses different
DNSSEC policies, the PKCS#11 label could collide, i.e. the same
label could be used for different keys. Add the policy name to
the label to make it more unique.
Also, the zone name could contain characters that are interpreted
as special characters when parsing the PKCS#11 URI string. Mangle
the zone name through 'dns_name_tofilenametext()' to make it
PKCS#11 safe.
Move the creation to a separate function for clarity.
Furthermore, add a log message whenever a PKCS#11 object has been
successfully created.
Matthijs Mekking [Thu, 16 Nov 2023 14:24:19 +0000 (15:24 +0100)]
Remove "error reading" grep from kasp system test
This log may still occur if there is a DNSKEY in the unsigned zone.
This may happen in a multi-signer setup for example.
Ideally this should not log a warning, but that requires looking up
keys a different way (by searching for key files only). However, that
requires adapting a bunch of system tests, and is out of scope for now.
Matthijs Mekking [Thu, 16 Nov 2023 11:10:50 +0000 (12:10 +0100)]
Minor fixes in enginepkcs11 system test
- Shell function body should be in between curly braces.
- Some erroneous '|| return 1' are replaced with '|| ret=1'.
- Fix a variable name (was 'ret', should be '_ret').
- Clean up when setting up a new test.
Matthijs Mekking [Mon, 13 Nov 2023 13:40:59 +0000 (14:40 +0100)]
The use of isc_dir_t in keymgr is not needed
The internal keymgr used 'isc_dir_open(&dir)' and 'isc_dir_close(&dir)',
but was not using the variable 'dir`, other than checking if the
directory can be opened. Errors like these will be be caught already
in the dst_api function calls.
Matthijs Mekking [Mon, 16 Oct 2023 11:24:10 +0000 (13:24 +0200)]
No longer need to get generated key from label
The pkcs11-provider did not yet support getting X/Y coordinates
on newly generated EC PKEY keys, thus we attempted to get the
key from the label after it was generated in the keystore.
Matthijs Mekking [Tue, 10 Oct 2023 13:21:58 +0000 (15:21 +0200)]
Only run pkcs11engine test if pkcs11-provider is available
The bullseye and bookworm images are not set up with pkcs11-provider,
so we need to add an additional prerequisite for running the
pkcs11engine test. Check the path of OPENSSL_CONF.
Matthijs Mekking [Tue, 10 Oct 2023 13:18:11 +0000 (15:18 +0200)]
Specify key usage to be digital signature
If not set, the created keys allows signing plus decrypt which is bad
practice. Setting the key usage explicitly will generate keys that
allow only signing.
The pkcs11-provider has changed to take a PKCS#11 URI instead of an
object identifier. Change the BIND 9 code accordingly to pass through
the label instead of just the object identifier.
Matthijs Mekking [Tue, 20 Jun 2023 13:44:17 +0000 (15:44 +0200)]
Refactor findzonekeys
Move dns_dnssec_findzonekeys from the dnssec.{c,h} source code to
zone.{c,h} (the header file already commented that this should be done
inside dns_zone_t).
Alter the function in such a way, that keys are searched for in the
key stores if a 'dnssec-policy' (kasp) is attached to the zone,
otherwise keep using the zone's key-directory.
When using dnssec-policy with dnssec-keygen in combination with setting
the key-directory on the command line, the commandline argument takes
priority over the key-directory from the default named.conf.
Matthijs Mekking [Fri, 11 Mar 2022 14:33:08 +0000 (15:33 +0100)]
Test key-store with non-default directory
Add a test case where dnssec-policy uses key stores with a directory
other than the zone's key-directory.
This requires changing the kasp shell script to take into account that
keys can be in different directories. When looking for keys, the
'find' command now takes a maxdepth of 3 to also look for keys in
subdirectories. Note this maxdepth value is arbitrary, the added
'keystore.kasp' test only requires a maxdepth of 2.
Because of this change, the dnssec-keygen tests no longer work because
they are for the same zone (although different directories). Change
the test to use a different zone ('kasp2' instead of 'kasp').
When writing key files to disk, use the internally stored directory.
Add an access function 'dst_key_directory()'.
Most calls to keymgr functions no longer need to provide the
key-directory value. Only 'dns_keymgr_run' still needs access to
the zone's key-directory in case the key-store is set to the built-in
key-directory.
Refactor dns_dnssec_findmatchingkeys and dns_dnssec_keylistfromrdataset
to take into account the key store directories in case the zone is using
dnssec-policy (kasp). Add 'kasp' and 'keystores' parameters.
This requires the keystorelist to be stored inside the zone structure.
The calls to these functions in the DNSSEC tools can use NULL as the
kasp value, as dnssec-signzone does not (yet) support dnssec-policy,
and key collision is checked inside the directory where it is created.
Matthijs Mekking [Mon, 28 Feb 2022 10:50:43 +0000 (11:50 +0100)]
Create private keys with PKCS#11 object
If there is a keystore configured with a PKCS#11 URI, zones that
are using a dnssec-policy that uses such a keystore should create keys
via the PKCS#11 interface. Those keys are generally stored inside an
HSM.
Some changes to the code are required, to store the engine reference
into the keystore.
Matthijs Mekking [Fri, 18 Feb 2022 14:03:49 +0000 (15:03 +0100)]
Store key store reference instead of name
When creating the kasp structure, instead of storing the name of the
key store on keys, store a reference to the key store object instead.
This requires to build the keystore list prior to creating the kasp
structures, in the dnssec tools, the check code and the server code.
We will create a builtin keystore called "key-directory" which means
use the zone's key-directory as the key store.
The check code changes, because now the keystore is looked up before
creating the kasp structure (and if the keystore is not found, this
is an error). Instead of looking up the keystore after all
'dnssec-policy' clauses have been read.
Matthijs Mekking [Thu, 10 Feb 2022 15:51:32 +0000 (16:51 +0100)]
Check if key-store directory is not reused
Similar to key-directory, check for zones in different views and
different key and signing policies. Zones must be using different key
directories to store key files on disk.
Now that a key directory can be linked with a dnssec-policy key, the
'keydirexist' checking needs to be reshuffled.
Add tests for bad configuration examples, named-checkconf should catch
those. Also add test cases for a mix of key-directory and key-store
directory.
Add checkconf check to ensure that the used key-store in the keys
section exists. Error if that is not the case. We also don't allow
the special keyword 'key-directory' as that is internally used to
signal that the zone's key-directory should be used.
Matthijs Mekking [Tue, 25 Jan 2022 09:08:43 +0000 (10:08 +0100)]
Add code for creating keystore from config
Add code for configuring keystore objects. Add this to the "kaspconf"
code, as it is related to 'dnssec-policy' and it is too small to create
a separate file for it.
Matthijs Mekking [Thu, 20 Jan 2022 13:00:27 +0000 (14:00 +0100)]
Add configuration for key-store
Add new configuration for setting key stores. The new 'key-store'
statement allows users to configure key store backends. These can be
of type 'file' (that works the same as 'key-directory') or of type
'pkcs11'. In the latter case, keys should be stored in a HSM that is
accessible through a PKCS#11 interface.
Keys configured within 'dnssec-policy' can now also use the 'key-store'
option to set a specific key store.
Update the checkconf test to accomodate for the new configuration.
Tom Krizek [Mon, 27 Nov 2023 16:20:10 +0000 (17:20 +0100)]
Ensure tests use mock root server if configured
These tests have ns1 configured as a mock root server. Make sure it is
used in all config files of those tests, otherwise some queries could
leak to root nameservers.
Tom Krizek [Mon, 27 Nov 2023 14:39:37 +0000 (15:39 +0100)]
Blackhole queries to root servers in tests
Some tests don't have a mock root server configured, because they don't
need one. However, these tests might still leak queries to actual name
servers. Add a shared root hints file which can serve as a blackhole for
these queries.
Tom Krizek [Wed, 25 Oct 2023 12:10:18 +0000 (14:10 +0200)]
Remove obsolete ckdnsrps.sh script
As dnsrps and native test cases have been properly split up, the
ckdnsrps.sh script is no longer used anywhere, as the logic for
selecting these test cases is handled by pytest.
Tom Krizek [Tue, 24 Oct 2023 08:36:48 +0000 (10:36 +0200)]
Split up the dnsrps and native variants of rpz system tests
Previously, dnsrps test was executed as an optional part of the rpz and
rpzrecurse system tests. This was conceptually problematic, as the test
took the responsibility of running parts of the test framework -
cleaning files and setting up servers again.
Instead, allow these tests to execute either the native variant, or the
dnsrps one. To ensure the same test coverage, trigger both of these
variants as separate test cases from pytest.
Aydın Mercan [Thu, 4 Jan 2024 07:40:54 +0000 (10:40 +0300)]
Forward declare mallocx in isc/mem.h
cmocka.h and jemalloc.h/malloc_np.h has conflicting macro definitions.
While fixing them with push_macro for only malloc is done below, we only
need the non-standard mallocx interface which is easy to just define by
ourselves.
Ondřej Surý [Thu, 21 Dec 2023 10:12:54 +0000 (11:12 +0100)]
Add workaround for jemalloc linking order
Because we don't use jemalloc functions directly, but only via the
libisc library, the dynamic linker might pull the jemalloc library
too late when memory has been already allocated via standard libc
allocator.
Add a workaround round isc_mem_create() that makes the dynamic linker
to pull jemalloc earlier than libc.
Artem Boldariev [Thu, 11 Jan 2024 21:48:38 +0000 (23:48 +0200)]
TLS: improve framing by assembling DNS message in one buffer
This commit improves TLS messages framing by avoiding an extra call to
SSL_write_ex(). Before that we would use an extra SSL_write_ex() call
to pass DNS message length to OpenSSL. That could create an extra TLS
frame, increasing number of bytes sent due to frame header and
padding.
This commit fixes that by making the code pass both DNS message length
and data at once, just like old TLS code did.
It should improve compatibility with some buggy clients that expect
both DNS message length and data to be in one TLS frame.
Aydın Mercan [Tue, 2 Jan 2024 13:28:46 +0000 (16:28 +0300)]
Expose the TCP client count in statistics channel
The statistics channel does not expose the current number of TCP clients
connected, only the highwater. Therefore, users did not have an easy
means to collect statistics about TCP clients served over time. This
information could only be measured as a seperate mechanism via rndc by
looking at the TCP quota filled.
In order to expose the exact current count of connected TCP clients
(tracked by the "tcp-clients" quota) as a statistics counter, an
extra, dedicated Network Manager callback would need to be
implemented for that purpose (a counterpart of ns__client_tcpconn()
that would be run when a TCP connection is torn down), which is
inefficient. Instead, track the number of currently-connected TCP
clients separately for IPv4 and IPv6, as Network Manager statistics.
Artem Boldariev [Mon, 15 Jan 2024 15:21:45 +0000 (17:21 +0200)]
Skipping portions of cipher-suites test in FIPS mode
We need to skip some portions the system test in FIPS mode as some of
the algorithms used in the test are not available when using the FIPS
mode (e.g. TLS_CHACHA20_POLY1305_SHA256)
Artem Boldariev [Mon, 15 Jan 2024 15:03:50 +0000 (17:03 +0200)]
TCP: remove wrong INSIST(csock->recv_cb != NULL)
This commit removes wrong INSIST() condition as the assumption that if
'csock->recv_cb != NULL' iff 'csock->statichandle != NULL' is wrong.
There is no direct relation between 'csock->statichandle' and
'csock->recv_cb', as 'csock->statichandle' gets set when allocating a
handle regardless of 'csock->recv_cb' not being NULL, as it is
possible to attach to the handle without starting a read operation (at
the very least, it is correct to start writing before reading).
That condition made `cipher-suites` system test fail with crash on
some platforms in FIPS mode (namely, Oracle Linux 9) despite not being
related to FIPS at all.
Artem Boldariev [Fri, 12 Jan 2024 15:50:12 +0000 (17:50 +0200)]
Fix flawed logic when detecting same listener type
The older version of the code was reporting that listeners are going
to be of the same type after reconfiguration when switching from DoT
to HTTPS listener, making BIND abort its executions.
That was happening due to the flaw in logic due to which the code
could consider a current listener and a configuration for the new one
to be of the same type (DoT) even when the new listener entry is
explicitly marked as HTTP.
The checks for PROXY in between the configuration were masking that
behaviour, but when porting it to 9.18 (when there is no PROXY
support), the behaviour was exposed.
Now the code mirrors the logic in 'interface_setup()' closely (as it
was meant to).
Mark Andrews [Fri, 5 Jan 2024 00:08:33 +0000 (11:08 +1100)]
Report the type being filtered from an UPDATE
When processing UPDATE request DNSKEY, CDNSKEY and CDS record that
are managed by named are filtered out. The log message has been
updated to report the actual type rather that just DNSKEY.