Commit Graph
8716 Commits
Author SHA1 Message Date
Matthijs Mekking 0daae0bdcf Fix CDS/CDNSKEY is published logging
The logs were misplaced, it was logging "CDS is published" when the
CDNSKEY is being published and vice versa.
2024-01-17 10:05:20 +01:00
Mark Andrews ecd5459a4d Silence potential unreachable message 2024-01-12 19:56:54 +11:00
Mark Andrews 4efcfa8f1c Apply filters to CDS and CDNSKEY records 2024-01-12 19:56:54 +11:00
Matthijs MekkingandMark Andrews 88734ac7cf Add function to check if a DNSKEY record is in use
Add a function that checks whether a DNSKEY, CDNSKEY, or CDS record
belongs to a key that is being used for signing.

(cherry picked from commit 3b6e9a5fa7)
2024-01-12 19:56:54 +11:00
Matthijs MekkingandMark Andrews 0d36d98791 Add new dns_rdatatype_iskeymaterial() function
The following code block repeats quite often:

    if (rdata.type == dns_rdatatype_dnskey ||
        rdata.type == dns_rdatatype_cdnskey ||
        rdata.type == dns_rdatatype_cds)

Introduce a new function to reduce the repetition.

(cherry picked from commit ef58f2444f)
2024-01-12 19:56:54 +11:00
Matthijs MekkingandMark Andrews 74109dfea6 Make make_dnskey() a public funcion
It can be used to compare DNSKEY, CDNSKEY, and CDS records with
signing keys.

(cherry picked from commit 81cb18b8a2)
2024-01-12 19:56:54 +11:00
Matthijs MekkingandMark Andrews 2a6ee4a9a0 Write new DNSKEY TTL to key file
When the current DNSKEY TTL does not match the one from the policy,
write the new TTL to disk.

(cherry picked from commit b770740b44)
2024-01-12 19:56:19 +11:00
Mark Andrews 59067fc568 Only create private records for DNSKEYs that have changed
We don't need to create private records for DNSKEY records that
have only had their TTL's changed.

(cherry picked from commit 27e74b2e4b)
2024-01-12 19:56:19 +11:00
Mark Andrews c1d1f35f13 sync_secure_db failed to handle some TTL changes
If the DNSKEY, CDNSKEY or CDS RRset had different TTLs then the
filtering of these RRset resulted in dns_diff_apply failing with
"not exact". Identify tuple pairs that are just TTL changes and
allow them through the filter.

(cherry picked from commit d601a90ea3)
2024-01-12 19:56:19 +11:00
Mark Andrews 5bea0d3588 Use the current CDS and CDNSKEY TTLs
When adding new CDS and CDNSKEY records use the existing RRset
TTL if they already exist.

(cherry picked from commit 21be35c54e)
2024-01-12 19:56:19 +11:00
Mark Andrews 3a0b3e92bd Update the DNSKEY, CDNSKEY and CDS TTLs to match dnskey-ttl
If the TTLs of the DNSKEY, CDNSKEY and CDS do not match the
dnskey-ttl update them by removing all records and re-adding
them with the correct TTL.

(cherry picked from commit dcb7799061)
2024-01-12 19:56:19 +11:00
Mark Andrews d78df5f96d Don't delete the NSEC3PARAM immediately
Wait until the new NSEC or NSEC3 chain is generated then it should
be deleted.

(cherry picked from commit f3ae88d84e)
2023-12-21 22:07:53 +11:00
Mark Andrews 0ceb01386c Don't look for KSK status here and squash memory leak
Just remove the key from  consideration as it is being removed.

The old code could leak a key reference as dst_free_key was not
called every time we continued. This simplification will address
this as well.

(cherry picked from commit a3d0476d17)
2023-12-21 10:05:54 +11:00
Mark Andrews a2bcd4fc0e Log what change generated a 'not exact' error
(cherry picked from commit c896e07277)
2023-12-20 02:47:42 +11:00
Mark Andrews 65fdc892eb Use 'now' rather than 'inception' in 'add_sigs'
When kasp support was added 'inception' was used as a proxy for
'now' and resulted in signatures not being generated or the wrong
signatures being generated.  'inception' is the time to be set
in the signatures being generated and is usually in the past to
allow for clock skew.  'now' determines what keys are to be used
for signing.

(cherry picked from commit 6066e41948)
2023-12-19 12:39:16 +11:00
Mark Andrews 9ded7428ad Use explict atomic for older compilers 2023-12-07 22:16:13 +11:00
Mark Andrews 2cc84d7678 Also cleanup the space for the rbt nodes
As we are in overmem state we want to free more memory than we are
adding so we need to add in an allowance for the rbtnodes that may
have been added and the names stored with them.  There is the node
for the owner name and a possible ENT node if there was a node split.

(cherry picked from commit 7e462c2b26)
2023-12-07 21:50:02 +11:00
Mark Andrews 8e5bd86416 Process the combined LRU lists in LRU order
Only cleanup headers that are less than equal to the rbt's last_used
time.  Adjust the rbt's last_used time when the target cleaning was
not achieved to the oldest value of the remaining set of headers.

When updating delegating NS and glue records last_used was not being
updated when it should have been.

When adding zero TTL records to the tail of the LRU lists set
last_used to rbtdb->last_used + 1 rather than now.  This appoximately
preserves the lists LRU order.

(cherry picked from commit 5e8f0e9ceb)
2023-12-07 21:34:19 +11:00
Evan Hunt 8f73814469 correctly limit hash resize to RBTDB_GLUE_TABLE_MAX_BITS
Use < instead of <= when testing the new new hash bits size,
otherwise it can exceed the limit.
2023-12-06 11:30:41 -08:00
Artem Boldariev d20f1240e2 Fix TLS certs store deletion on concurrent access
During initialisation or reconfiguration, it is possible that multiple
threads are trying to create a TLS context and associated data (like
TLS certs store) concurrently. In some cases, a thread might be too
late to add newly created data to the TLS contexts cache, in which
case it needs to be discarded. In the code that handles that case, it
was not taken into account that, in some cases, the TLS certs store
could not have been created or should not be deleted, as it is being
managed by the TLS contexts cache already. Deleting the store in such
cases might lead to crashes.

This commit fixes the issue.

(cherry picked from commit b109fa9192)
2023-12-06 17:06:51 +02:00
Mark Andrews 3aaf20a2dc Ineffective DbC protections
Dereference before NULL checks.  Thanks to Eric Sesterhenn from X41
D-Sec GmbH for reporting this.

(cherry picked from commit decc17d3b0)
2023-12-06 09:01:05 +11:00
Matthijs Mekking 3c244da9d4 Recognize escapes when reading the public key
Escapes are valid in DNS names, and should be recognized when reading
the public key from disk.

(cherry picked from commit 71f023a1c3)
2023-11-20 08:35:30 +01:00
Evan Hunt 6b47d98a95 set loadtime during initial transfer of a secondary zone
when transferring in a non-inline-signing secondary for the first time,
we previously never set the value of zone->loadtime, so it remained
zero. this caused a test failure in the statschannel system test,
and that test case was temporarily disabled.  the value is now set
correctly and the test case has been reinstated.

(cherry picked from commit 9643281453)
2023-11-15 18:06:58 -08:00
Mark Andrews ab2a450887 Check that buffer length in dns_message_renderbegin
The maximum DNS message size is 65535 octets. Check that the buffer
being passed to dns_message_renderbegin does not exceed this as the
compression code assumes that all offsets are no bigger than this.

(cherry picked from commit a069513234)
2023-11-16 12:22:08 +11:00
Ondřej Surý 6a85e79c0b Reformat sources with up-to-date clang-format-17 2023-11-13 17:13:07 +01:00
Mark Andrews ba7cfd2f92 Suppress reporting upcoming changes in root hints
To reduce the amount of log spam when root servers change their
addresses keep a table of upcoming changes by expected date and time
and suppress reporting differences for them until then.

Add initial entry for B.ROOT-SERVERS.NET, Nov 27, 2023.

(cherry picked from commit b69100b747)
2023-11-03 03:43:49 +11:00
Mark Andrews 15e13bd523 Update b.root-servers.net IP addresses
This covers both root hints and the default primaries for the root
zone mirror.  The official change date is Nov 27, 2023.

(cherry picked from commit 2ca2f7e985)
2023-11-03 03:43:49 +11:00
Mark Andrews 8b11061b91 Only declare 'engine' if it is used
Move the declaration of 'engine' within the appropriate #if/#endif
block.  Remove the UNUSED(engine) from the #else block.
2023-10-27 10:49:38 +11:00
Aram Sargsyan 2141bde46b Fix shutdown races in catzs
The dns__catz_update_cb() does not expect that 'catzs->zones'
can become NULL during shutdown.

Add similar checks in the dns__catz_update_cb() and dns_catz_zone_get()
functions to protect from such a case. Also add an INSIST in the
dns_catz_zone_add() function to explicitly state that such a case
is not expected there, because that function is called only during a
reconfiguration.

(cherry picked from commit 4eb4fa288c)
2023-10-23 10:53:40 +00:00
Mark Andrews 306ee4cb28 Adjust UDP timeouts used in zone maintenance
Drop timeout before resending a UDP request from 15 seconds to 5
seconds and add 1 second to the total time to allow for the reply
to the third request to arrive.  This will speed up the time it
takes for named to recover from a lost packet when refreshing a
zone and for it to determine that a primary is down.

(cherry picked from commit 29f399797d)
2023-10-20 00:16:01 +00:00
Michal Nowak 7c6632e174 Update the source code formatting using clang-format-17 2023-10-18 09:02:57 +02:00
Matthijs Mekking ac1b70ad00 Don't resign raw version of the zone
Update the function 'set_resigntime()' so that raw versions of
inline-signing zones are not scheduled to be resigned.

Also update the check in the same function for zone is dynamic, there
exists a function 'dns_zone_isdynamic()' that does a similar thing
and is more complete.

Also in 'zone_postload()' check whether the zone is not the raw
version of an inline-signing zone, preventing calculating the next
resign time.

(cherry picked from commit 741ce2d07a)
2023-10-16 10:34:17 +02:00
Ondřej Surý 905f8c5899 Don't undef <unit>_TRACE, instead add comment how to enable it
In units that support detailed reference tracing via ISC_REFCOUNT
macros, we were doing:

    /* Define to 1 for detailed reference tracing */
    #undef <unit>_TRACE

This would prevent using -D<unit>_TRACE=1 in the CFLAGS.

Convert the above mentioned snippet with just a comment how to enable
the detailed reference tracing:

    /* Add -D<unit>_TRACE=1 to CFLAGS for detailed reference tracing */

(cherry picked from commit 6afa961534)
2023-10-13 11:46:41 +02:00
Aram Sargsyan 92e5173a9f Don't use an uninitialized link on an error path
Move the block on the error path, where the link is checked, to a place
where it makes sense, to avoid accessing an unitialized link when
jumping to the 'cleanup_query' label from 4 different places. The link
is initialized only after those jumps happen.

In addition, initilize the link when creating the object, to avoid
similar errors.

(cherry picked from commit fb7bbbd1be)
2023-09-28 10:30:42 +00:00
Ondřej Surý 818f4dc3a7 Explicitly cast chars to unsigned chars for <ctype.h> functions
Apply the semantic patch to catch all the places where we pass 'char' to
the <ctype.h> family of functions (isalpha() and friends, toupper(),
tolower()).

(cherry picked from commit 29caa6d1f0)
2023-09-22 17:01:59 +02:00
Mark Andrews 933d03fc83 Correctly set the value of covered in dns_ncache_current
Fix the type and rdclass being passed to dns_rdata_tostruct so
that rrsig.covered is correctly set.

(cherry picked from commit 779980710c)
2023-09-18 15:51:44 +10:00
Mark Andrews 0325e4a1fb Adjust level of log messages when transferring in a zone
This raises the log level of messages treated as FORMERR to NOTICE
when transfering in a zone.  This also adds a missing log message
for TYPE0 and meta types received during a zone transfer.

(cherry picked from commit 6c3414739d)
2023-09-06 20:14:41 +10:00
Ondřej SurýandArаm Sаrgsyаn 46969dca75 Unobfuscate the code-flow logic in got_transfer_quota()
This refactors the code flow in got_transfer_quota() to not use the
CHECK() macro as it really obfuscates the code flow logic here.

(cherry picked from commit 00cb151f8e)
2023-09-04 08:04:52 +00:00
Aram Sargsyan 07b2d19b92 Reset the 'result' before using it again
The 'result' variable should be reset to ISC_R_NOTFOUND again,
because otherwise a log message could be logged about not being
able to get the TLS configuration based on on the 'result' value
from the previous calls to get the TSIG key.

(cherry picked from commit 6cab7fc627)
2023-09-04 08:04:52 +00:00
Mark Andrews 29a93d2889 Check that buf is large enough
(cherry picked from commit 299f519b09)
2023-09-01 14:06:27 +10:00
Mark Andrews 4c27f80476 Add missing "Design by Contract" REQUIREs
(cherry picked from commit b442ae8d3e)
2023-09-01 14:00:14 +10:00
Mark Andrews 0111782f1e Clear OpenSSL errors on context creation failures
(cherry picked from commit 96db614d69)
2023-09-01 13:45:34 +10:00
Mark Andrews 34a0bb146c Clear OpenSSL errors on engine errors
(cherry picked from commit 2ba62aebce)
2023-09-01 13:43:20 +10:00
Mark Andrews b5b13771f2 Clear OpenSSL errors on EVP_PKEY_new failures
(cherry picked from commit 6df53cdb87)
2023-09-01 13:37:02 +10:00
Mark Andrews 4d37996b1a Clear OpenSSL errors on EC_KEY_get0_private_key failures
(cherry picked from commit 86b04368b0)
2023-09-01 13:34:14 +10:00
Mark Andrews 386e88d0e4 Clear OpenSSL errors on EVP_PKEY_get0_EC_KEY failures
(cherry picked from commit abd8c03592)
2023-09-01 13:30:30 +10:00
Mark Andrews ababcd28c1 Clear OpenSSL errors on EVP_PKEY_get_bn_param failures
(cherry picked from commit d8a9adc821)
2023-09-01 13:24:02 +10:00
Mark Andrews fb503aa275 Clear OpenSSL errors on EVP_MD_CTX_create failures
(cherry picked from commit 8529be30bb)
2023-09-01 13:13:59 +10:00
Mark Andrews 290896921d Clear OpenSSL errors on ECDSA_SIG_new failures
(cherry picked from commit eafcd41120)
2023-09-01 13:13:06 +10:00
Matthijs Mekking 6e078a79d5 After cache flush, restore serve-stale settings
When flushing the cache, we create a new cache database. The serve-stale
settings need to be restored after doing this. We already did this
for max-stale-ttl, but forgot to do this for stale-refresh-time.

(cherry picked from commit 3ae721db6c)
2023-08-31 11:13:08 +02:00