When trying to extract the key ID from a key file name, some test code
incorrectly attempts to strip all leading zeros. This breaks tests when
keys with ID 0 are generated. Add a new helper shell function,
keyfile_to_key_id(), which properly handles keys with ID 0 and use it in
test code whenever a key ID needs to be extracted from a key file name.
- managed-keys is now deprecated as well as trusted-keys, though
it continues to work as a synonym for dnssec-keys
- references to managed-keys have been updated throughout the code.
- tests have been updated to use dnssec-keys format
- also the trusted-keys entries have been removed from the generated
bind.keys.h file and are no longer generated by bindkeys.pl.
- trusted-keys is now flagged as deprecated, but still works
- managed-keys can be used to configure permanent trust anchors by
using the "static-key" keyword in place of "initial-key"
- parser now uses an enum for static-key and initial-key keywords
Some values returned by dstkey_fromconfig() indicate that key loading
should be interrupted, others do not. There are also certain subsequent
checks to be made after parsing a key from configuration and the results
of these checks also affect the key loading process. All of this
complicates the key loading logic.
In order to make the relevant parts of the code easier to follow, reduce
the body of the inner for loop in load_view_keys() to a single call to a
new function, process_key(). Move dstkey_fromconfig() error handling to
process_key() as well and add comments to clearly describe the effects
of various key loading errors.
The "check key refreshes are resumed after root servers become
available" check may trigger a false positive for the "mkeys" system
test if the second example/TXT query sent by dig is received by ns5 less
than a second after it receives a REFUSED response to the upstream query
it sends to ns1 in order to resolve the first example/TXT query sent by
dig. Since that REFUSED response from ns1 causes ns5 to return a
SERVFAIL answer to dig, example/TXT is added to the SERVFAIL cache,
which is enabled by default with a TTL of 1 second. This in turn may
cause ns5 to return a cached SERVFAIL response to the second example/TXT
query sent by dig, i.e. make ns5 not perform full query processing as
expected by the check.
Since the primary purpose of the check in question is to ensure that key
refreshes are resumed once initially unavailable root servers become
available, the optimal solution appears to be disabling SERVFAIL cache
for ns5 as doing that still allows the check to fulfill its purpose and
it is arguably more prudent than always sleeping for 1 second.
These tests check if a key with an unsupported algorithm in
managed-keys is ignored and when seeing an algorithm rollover to
an unsupported algorithm, the new key will be ignored too.
The keyfile and key ID for the original managed key do not change
throughout the mkeys system test. Keep them in helper variables to
prevent calling "cat" multiple times and improve code readability.
Reduce code duplication by replacing a code snippet repeated throughout
system tests using "trusted-keys" and/or "managed-keys" configuration
sections with calls to keyfile_to_{managed,trusted}_keys() helper
functions.
- all tests with "recursion yes" now also specify "dnssec-validation yes",
and all tests with "recursion no" also specify "dnssec-validation no".
this must be maintained in all new tests, or else validation will fail
when we use local root zones for testing.
- clean.sh has been modified where necessary to remove managed-keys.bind
and viewname.mkeys files.
Calling nextpart() after reconfiguring ns1 is not safe, because the
expected log message may appear in ns5/named.run before nextpart() is
run. With the TTL for ./DNSKEY set to 20 seconds, ns5 will refresh it
after 10 seconds, by which time wait_for_log() will already have failed.
This results in a false negative.
However, just calling nextpart() before reconfiguring ns1 would
introduce a different problem: if ns5 refreshed ./DNSKEY between these
two steps, the subsequent wait_for_log() call would return immediately
as it would come across the log message about a failure while refreshing
./DNSKEY instead of the expected success. This in turn would result in
a different false negative as the root key would still be uninitialized
by the time "rndc secroots" is called.
Prevent both kinds of false negatives by:
- calling nextpart() before reconfiguring ns1, in order to prevent the
first case described above,
- looking for a more specific log message, in order to prevent the
second case described above.
Also look for a more specific log message in the first part of the
relevant check, not to fix any problem, but just to emphasize that a
different fetch result is expected in that case.
With these tweaks in place, if a (failed) ./DNSKEY refresh is scheduled
between nextpart() and reconfiguring ns1, wait_for_log() will just wait
for two more seconds (one "hour"), at which point another refresh
attempt will be made that will succeed.
- add CHANGES note
- update copyrights and license headers
- add -j to the make commands in .gitlab-ci.yml to take
advantage of parallelization in the gitlab CI process
4798. [func] Keys specified in "managed-keys" statements
are tagged as "initializing" until they have been
updated by a key refresh query. If initialization
fails it will be visible from "rndc secroots".
[RT #46267]
This reverts commit 560d8b833e.
This change created a potential race between key refresh queries and
root zone priming queries which could leave the root name servers in
the bad-server cache.
4773. [bug] Keys specified in "managed-keys" statements
can now only be used when validating key refresh
queries during initialization of RFC 5011 key
maintenance. If initialization fails, DNSSEC
validation of normal queries will also fail.
Previously, validation of normal queries could
succeed using the initializing key, potentially
masking problems with managed-keys. [RT #46077]
4750. [func] "rndc managed-keys destroy" shuts down RFC 5011 key
maintenance and deletes the managed-keys database.
If followed by "rndc reconfig" or a server restart,
key maintenance is reinitialized from scratch.
This is primarily intended for testing. [RT #32456]
4594. [func] dnssec-keygen no longer uses RSASHA1 by default;
the signing algorithm must be specified on
the command line with the "-a" option. Signing
scripts that rely on the existing default behavior
will break; use "dnssec-keygen -a RSASHA1" to
repair them. (The goal of this change is to make
it easier to find scripts using RSASHA1 so they
can be changed in the event of that algorithm
being deprecated in the future.) [RT #44755]
4642. [cleanup] Add more logging of RFC 5011 events affecting the
status of managed keys: newly observed keys,
deletion of revoked keys, etc. [RT #45354]
to provide feedback to the trust-anchor administrators
about how key rollovers are progressing as per
draft-ietf-dnsop-edns-key-tag-02. This can be
disabled using 'trust-anchor-telemetry no;'.
[RT #40583]
