On FIPS-enabled platforms, we need to ensure a minimal version of
hypothesis which no longer uses MD5. This doesn't need to be enforced
for other platforms.
Move the import magic to a utility module to avoid copy-pasting the
boilerplate code around.
Merge branch 'nicki/pytest-import-hypothesis' into 'main'
See merge request isc-projects/bind9!10442
On FIPS-enabled platforms, we need to ensure a minimal version of
hypothesis which no longer uses MD5. This doesn't need to be enforced
for other platforms.
Move the import magic to a utility module to avoid copy-pasting the
boilerplate code around.
Coverity detected that 'optlen' was not being checked in 'process_opt'.
This is actually already done when the OPT record was initially
parsed. Add an INSIST to silence Coverity as is done in message.c.
Closes#5330
Merge branch '5330-tainted-scalar-in-client-c' into 'main'
See merge request isc-projects/bind9!10500
Coverity detected that 'optlen' was not being checked in 'process_opt'.
This is actually already done when the OPT record was initially
parsed. Add an INSIST to silence Coverity as is done in message.c.
The #include <zconf.h> got spuriously included into isc_commandline
unit. The #include <limits.h> needs to be used instead.
Merge branch 'ondrej/unify-handling-of-the-program-name-fix' into 'main'
See merge request isc-projects/bind9!10503
There were several methods how we used 'argv[0]'. Some programs had a
static value, some programs did use isc_file_progname(), some programs
stripped 'lt-' from the beginning of the name. And some used argv[0]
directly.
Unify the handling and all the variables into isc_commandline_progname
that gets populated by the new isc_commandline_init(argc, argv) call.
Merge branch 'ondrej/unify-handling-of-the-program-name' into 'main'
See merge request isc-projects/bind9!10502
There were several methods how we used 'argv[0]'. Some programs had a
static value, some programs did use isc_file_progname(), some programs
stripped 'lt-' from the beginning of the name. And some used argv[0]
directly.
Unify the handling and all the variables into isc_commandline_progname
that gets populated by the new isc_commandline_init(argc, argv) call.
Instead of giving the memory context names with an explicit call to
isc_mem_setname(), add the name to isc_mem_create() call to have all the
memory contexts an unconditional name.
Merge branch 'ondrej/ondrej-isc_mem_create-with-name' into 'main'
See merge request isc-projects/bind9!10426
Instead of giving the memory pools names with an explicit call to
isc_mempool_setname(), add the name to isc_mempool_create() call to have
all the memory pools an unconditional name.
Instead of giving the memory context names with an explicit call to
isc_mem_setname(), add the name to isc_mem_create() call to have all the
memory contexts an unconditional name.
it isn't necessary to set a pointer to NULL after calling
isc_mem_put() or isc_mem_free(), because those macros take
care of it automatically.
Merge branch 'each-memfree-null' into 'main'
See merge request isc-projects/bind9!10485
add a Coccinelle patch to ensure the pointer being used by
isc_mem_free() and isc_mem_put() is not explicitly set to NULL (those
mecros are taking care of it).
The memory context for isc_managers and dst_api units had no name and
that was causing trouble with the statistics channel output. Set the
name for the two memory context that were missing a proper name.
A secondary zone could initiate a new zone transfer from the
primary server after it had been already deleted from the
secondary server, and before the internal garbage collection
was activated to clean it up completely. This has been fixed.
Closes#5291
Merge branch '5291-zone-delete-bug' into 'main'
See merge request isc-projects/bind9!10449
After b171cacf4f, a zone object can
remain in the memory for a while, until garbage collection is run.
Setting the DNS_ZONEFLG_EXITING flag should prevent the zone
maintenance function from running while it's in that state.
Otherwise, a secondary zone could initiate a zone transfer after
it had been deleted.
A secondary zone could fail to further refresh with new
versions of the zone from a primary server if named was
reconfigured during the SOA request step of an ongoing
zone transfer. This has been fixed.
Closes#5307
Merge branch '5307-zone-refresh-stuck-after-reconfiguration-fix' into 'main'
See merge request isc-projects/bind9!10468
When request manager shuts down, it also shuts down all its ongoing
requests. Currently it calls their callback functions with a
ISC_R_SHUTTINGDOWN result code for the request. Since a request
manager can shutdown not only during named shutdown but also during
named reconfiguration, instead of sending ISC_R_SHUTTINGDOWN result
code send a ISC_R_CANCELED code to avoid confusion and errors with
the expectation that a ISC_R_SHUTTINGDOWN result code can only be
received during actual shutdown of named.
All the callback functions which are passed to either the
dns_request_create() or the dns_request_createraw() functions have
been analyzed to confirm that they can process both the
ISC_R_SHUTTINGDOWN and ISC_R_CANCELED result codes. Changes were
made where it was necessary.
This new test checks that named can correctly process an interrupted
SOA request during zone transfer, caused by reconfiguration.
Co-authored-by: Michał Kępień <michal@isc.org>
When the zone.c:refresh_callback() callback function is called during
a SOA request before a zone transfer, it can receive a
ISC_R_SHUTTINGDOWN result for the sent request when named is shutting
down, and in that case it just destroys the request and finishes the
ongoing transfer, without clearing the DNS_ZONEFLG_REFRESH flag of the
zone. This is alright when named is going to shutdown, but currently
the callback can get a ISC_R_SHUTTINGDOWN result also when named is
reconfigured during the ongoibg SOA request. In that case, leaving the
DNS_ZONEFLG_REFRESH flag set results in the zone never being able
to refresh again, because any new attempts will be caneled while
the flag is set. Clear the DNS_ZONEFLG_REFRESH flag on the 'exiting'
error path of the callback function.
Enable existing rndc system tests (the python test function calling the
shell file was missing). Also update the extra artifacts list to remove
one generated file which was left behind.
Merge branch 'colin/rndc-tests' into 'main'
See merge request isc-projects/bind9!10489
Enable existing rndc system tests (the python test function calling the
shell file was missing). Also update the extra artifacts list to remove
one generated file which was left behind.
Add more macros for iteration: `DNS_RDATASET_FOREACH`, `CFG_LIST_FOREACH`, `DNS_DBITERATOR_FOREACH`, and `DNS_RDATASETITER_FOREACH`.
Merge branch 'each-rdataset-foreach' into 'main'
See merge request isc-projects/bind9!10350
replace the pattern `for (result = dns_rdataset_first(x); result ==
ISC_R_SUCCES; result = dns_rdataset_next(x)` with a new
`DNS_RDATASET_FOREACH` macro throughout BIND.
the import_rdataset() function can't return any value other
than ISC_R_SUCCESS, so it's been changed to void and its callers
don't rely on its return value any longer.
the comments for some calls in the dns_message API specified
requirements which were not actually enforced in the functions.
in most cases, this has now been corrected by adding the missing
REQUIREs. in one case, the comment was incorrect and has been
revised.
Merge branch 'each-fix-message-requires' into 'main'
See merge request isc-projects/bind9!10466
the comments for some calls in the dns_message API specified
requirements which were not actually enforced in the functions.
in most cases, this has now been corrected by adding the missing
REQUIREs. in one case, the comment was incorrect and has been
revised.
Previously, `ISC_LIST_FOREACH` and `ISC_LIST_FOREACH_SAFE` were
two separate macros, with the _SAFE version allowing entries
to be unlinked during the loop. `ISC_LIST_FOREACH` is now also
safe, and the separate `_SAFE` macro has been removed.
Similarly, the `ISC_LIST_FOREACH_REV` macro is now safe, and
`ISC_LIST_FOREACH_REV_SAFE` has also been removed.
Merge branch 'each-isc-list-foreach' into 'main'
See merge request isc-projects/bind9!10479
previously, ISC_LIST_FOREACH and ISC_LIST_FOREACH_SAFE were
two separate macros, with the _SAFE version allowing entries
to be unlinked during the loop. ISC_LIST_FOREACH is now also
safe, and the separate _SAFE macro has been removed.
similarly, the ISC_LIST_FOREACH_REV macro is now safe, and
ISC_LIST_FOREACH_REV_SAFE has also been removed.
qp-tries allocate their nodes (twigs) in chunks to reduce allocator
pressure and improve memory locality. The choice of chunk size presents
a tradeoff: larger chunks benefit qp-tries with many values (as seen
in large zones and resolvers) but waste memory in smaller use cases.
Previously, our fixed chunk size of 2^10 twigs meant that even an
empty qp-trie would consume 12KB of memory, while reducing this size
would negatively impact resolver performance.
This commit implements an adaptive chunking strategy that:
- Tracks the size of the most recently allocated chunk.
- Doubles the chunk size for each new allocation until reaching a
predefined maximum.
This approach effectively balances memory efficiency for small tries
while maintaining the performance benefits of larger chunk sizes for
bigger data structures.
Merge branch 'alessio/qp-small-alloc' into 'main'
See merge request isc-projects/bind9!10245
Before implementing adaptive chunk sizing, it was necessary to ensure
that a chunk could hold up to 48 twigs, but the new logic will size-up
new chunks to ensure that the current allocation can succeed.
We exploit the new logic in two ways:
- We make the minimum chunk size smaller than the old limit of 2^6,
reducing memory consumption.
- We make the maximum chunk size larger, as it has been observed that
it improves resolver performance.
qp-tries allocate their nodes (twigs) in chunks to reduce allocator
pressure and improve memory locality. The choice of chunk size presents
a tradeoff: larger chunks benefit qp-tries with many values (as seen
in large zones and resolvers) but waste memory in smaller use cases.
Previously, our fixed chunk size of 2^10 twigs meant that even an
empty qp-trie would consume 12KB of memory, while reducing this size
would negatively impact resolver performance.
This commit implements an adaptive chunking strategy that:
- Tracks the size of the most recently allocated chunk.
- Doubles the chunk size for each new allocation until reaching a
predefined maximum.
This approach effectively balances memory efficiency for small tries
while maintaining the performance benefits of larger chunk sizes for
bigger data structures.
This commit also splits the callback freeing qpmultis into two
phases, one that frees the underlying qptree, and one that reclaims
the qpmulti memory. In order to prevent races between the qpmulti
destructor and chunk garbage collection jobs, the second phase is
protected by reference counting.
There is no reason for the public pre-announcements of security issues
to only be sent for BIND 9. Remove the "BIND 9 only" annotation from
the relevant checklist step as it caused confusion in practice.
