Import 1.19.1 (previous was 1.16.3)

2 November 2023: Wouter
- Set version number to 1.19.0.
- Tag for 1.19.0rc1 release.

1 November 2023: George
- Mention flex and bison in README.md when building from repository
source.

1 November 2023: Wouter
- Fix SSL compile failure for definition in log_crypto_err_io_code_arg.
- Fix SSL compile failure for other missing definitions in
log_crypto_err_io_code_arg.
- Fix compilation without openssl, remove unused function warning.

31 October 2023: George
- Fix #941: dnscrypt doesn't work after upgrade to 1.18 with
suggestion by dukeartem to also fix the udp_ancil with dnscrypt.

30 October 2023: George
- Merge #930 from Stuart Henderson: add void to
log_ident_revert_to_default declaration.

30 October 2023: Wouter
- autoconf.

24 October 2023: George
- Clearer configure text for missing protobuf-c development libraries.

20 October 2023: Wouter
- Merge #951: Cachedb no store. The cachedb-no-store: yes option is
used to stop cachedb from writing messages to the backend storage.
It reads messages when data is available from the backend. The
default is no.

19 October 2023: Wouter
- Fix to print detailed errors when an SSL IO routine fails via
SSL_get_error.

18 October 2023: George
- Mailing list patches from Daniel Gr��ber for DNS64 fallback to plain
AAAA when no A record exists for synthesis, and minor DNS64 code
refactoring for better readability.
- Fixes for the DNS64 patches.
- Update the dns64_lookup.rpl test for the DNS64 fallback patch.
- Merge #955 from buevsan: fix ipset wrong behavior.
- Update testdata/ipset.tdir test for ipset fix.

17 October 2023: Wouter
- Fix #954: Inconsistent RPZ handling for A record returned along with
CNAME.

16 October 2023: George
- Expose the script filename in the Python module environment 'mod_env'
instead of the config_file structure which includes the linked list
of scripts in a multi Python module setup; fixes #79.
- Expose the configured listening and outgoing interfaces, if any, as
a list of strings in the Python 'config_file' class instead of the
current Swig object proxy; fixes #79.
- For multi Python module setups, clean previously parsed module
functions in __main__'s dictionary, if any, so that only current
module functions are registered.

13 October 2023: George
- Better fix for infinite loop when reading multiple lines of input on
a broken remote control socket, by treating a zero byte line the
same as transmission end. Addesses #947 and #948.

12 October 2023: Wouter
- Merge #944: Disable EDNS DO.
Disable the EDNS DO flag in upstream requests. This can be helpful
for devices that cannot handle DNSSEC information. But it should not
be enabled otherwise, because that would stop DNSSEC validation. The
DNSSEC validation would not work for Unbound itself, and also not
for downstream users. Default is no. The option
is disable-edns-do: no

11 October 2023: George
- Fix #850: [FR] Ability to use specific database in Redis, with new
redis-logical-db configuration option.

11 October 2023: Wouter
- Fix #949: "could not create control compt".
- Fix that cachedb does not warn when serve-expired is disabled about
use of serve-expired-reply-ttl and serve-expired-client-timeout.
- Fix for #949: Fix pythonmod/ubmodule-tst.py for Python 3.x.

10 October 2023: George
- Fix infinite loop when reading multiple lines of input on a broken
remote control socket. Addesses #947 and #948.

9 October 2023: Wouter
- Fix edns subnet so that queries with a source prefix of zero cause
the recursor send no edns subnet option to the upstream.
- Fix that printout of EDNS options shows the EDNS cookie option by
name.

4 October 2023: Wouter
- Fix #946: Forwarder returns servfail on upstream response noerror no
data.

3 October 2023: George
- Merge #881: Generalise the proxy protocol code.

2 October 2023: George
- Fix misplaced comment.

22 September 2023: Wouter
- Fix #942: 1.18.0 libunbound DNS regression when built without
OpenSSL.

18 September 2023: Wouter
- Fix rpz tcp-only action with rpz triggers nsdname and nsip.

15 September 2023: Wouter
- Merge #936: Check for c99 with autoconf versions prior to 2.70.
- Fix to remove two c99 notations.

14 September 2023: Wouter
- Fix authority zone answers for obscured DNAMEs and delegations.

8 September 2023: Wouter
- Fix send of udp retries when ENOBUFS is returned. It stops looping
and also waits for the condition to go away. Reported by Florian
Obser.

7 September 2023: Wouter
- Fix to scrub resource records of type A and AAAA that have an
inappropriate size. They are removed from responses.
- Fix to move msgparse_rrset_remove_rr code to util/msgparse.c.
- Fix to add EDE text when RRs have been removed due to length.
- Fix to set ede match in unit test for rr length removal.
- Fix to print EDE text in readable form in output logs.

6 September 2023: Wouter
- Merge #931: Prevent warnings from -Wmissing-prototypes.

31 August 2023: Wouter
- Fix autoconf 2.69 warnings in configure.
- Fix #927: unbound 1.18.0 make test error. Fix make test without SHA1.

30 August 2023: Wouter
- Fix for WKS call to getservbyname that creates allocation on exit
in unit test by testing numbers first and testing from the services
list later.

28 August 2023: Wouter
- Fix for version generation race condition that ignored changes.

25 August 2023: Wouter
- Fix compile error on NetBSD in util/netevent.h.

23 August 2023: Wouter
- Tag for 1.18.0rc1 release. This became the 1.18.0 release on
30 aug 2023, with the fix from 25 aug, fix compile on NetBSD
included. The repository continues with version 1.18.1.

22 August 2023: Wouter
- Set version number to 1.18.0.

21 August 2023: Wouter
- Debug Windows ci workflow.
- Fix windows ci workflow to install bison and flex.
- Fix for #925: unbound.service: Main process exited, code=killed,
status=11/SEGV. Fixes cachedb configuration handling.
- Fix #923: processQueryResponse() THROWAWAY should be mindful of
fail_reply.
- Fix unit test for unbound-control to work when threads are disabled,
and fix cache dump check.

18 August 2023: Wouter
- Fix for iter_dec_attempts that could cause a hang, part of
capsforid and qname minimisation, depending on the settings.
- Fix uninitialized memory passed in padding bytes of cmsg to sendmsg.
- Fix stat_values test to work with dig that enables DNS cookies.

17 August 2023: Wouter
- Merge PR #762: Downstream DNS Server Cookies a la RFC7873 and
RFC9018. Create server cookies for clients that send client cookies.
This needs to be explicitly turned on in the config file with:
`answer-cookie: yes`. A `cookie-secret:` can be configured for
anycast setups. Without one, a random cookie secret is generated.
The acl option `allow_cookie` allows queries with either a valid
cookie or over a stateful transport. The statistics output has
`queries_cookie_valid` and `queries_cookie_client` and
`queries_cookie_invalid` information. The `ip\-ratelimit\-cookie:`
value determines a rate limit for queries with cookies, if desired.
- Fix regional_alloc_init for potential unaligned source of the copy.
- Fix ip_ratelimit test to work with dig that enables DNS cookies.

2 August 2023: George
- Move a cache reply callback in worker.c closer to the cache reply
generation.

1 August 2023: George
- Merge #911 from natalie-reece: Exclude EDE before other EDNS options
when there isn't enough space.
- For #911: Try to trim EXTRA-TEXT (and LDNS_EDE_OTHER options
altogether) before giving up on attaching EDE options.
- More braces and formatting for Fix for EDNS EDE size calculation to
avoid future bugs.
- Fix to use the now cached EDE, if any, for CD_bit queries.

1 August 2023: Wouter
- Fix for EDNS EDE size calculation.

31 July 2023: George
- Merge #790 from Tom Carpay: Add support for EDE caching in cachedb
and subnetcache.

31 July 2023: Wouter
- iana portlist update.

30 July 2023: George
- Merge #759 from Tom Carpay: Add EDE (RFC8914) caching.

28 July 2023: George
- Fix unused variable compile warning for kernel timestamps in
netevent.c

21 July 2023: George
- Merge #857 from eaglegai: fix potential memory leaks when errors
happen.
- For #857: fix mixed declarations and code.
- Merge #118 from mibere: Changed verbosity level for Redis init &
deinit.
- Merge #390 from Frank Riley: Add missing callbacks to the python
module.
- Cleaner failure code for callback functions in interface.i.
- Merge #889 from borisVanhoof: Free memory in error case + remove
unused function.
- For #889: use netcat-openbsd instead of netcat-traditional.
- For #889: Account for num_detached_states before possible
mesh_state_delete when erroring out.

20 July 2023: George
- Merge #909 from headshog: Numeric truncation when parsing TYPEXX and
CLASSXX representation.
- For #909: Fix return values.
- Merge #901 from Sergei Trofimovich: config: improve handling of
unknown modules.

20 July 2023: Wouter
- For #909: Fix RR class comparison.

14 July 2023: George
- More clear description of the different auth-zone behaviors on the
man page.

13 July 2023: George
- Merge #880 from chipitsine: services/authzone.c: remove redundant
check.

11 July 2023: George
- Merge #664 from tilan7763: Add prefetch support for subnet cache
entries.
- For #664: Easier code flow for subnetcache prefetching.
- For #664: Add testcase.
- For #664: Rename subnet_prefetch tests to subnet_global_prefetch to
differentiate from the new subnet prefetch support.

3 July 2023: George
- Merge #739: Add SVCB dohpath support.
- Code cleanup for sldns_str2wire_svcparam_key_lookup.
- Merge #802: add validation EDEs to queries where the CD bit is set.
- For #802: Cleanup comments and add RCODE check for CD bit test case.
- Skip the 00-lint test. splint is not maintained; it either does not
work or produces false positives. Static analysis is handled in the
clang test.

3 July 2023: Wouter
- Fix #906: warning: ���Py_SetProgramName��� is deprecated.
- Fix dereference of NULL variable warning in mesh_do_callback.

29 June 2023: George
- More fixes for reference counting for python module and clean up
failure code.
- Merge #827 from rcmcdonald91: Eliminate unnecessary Python reloading
which causes memory leaks.

29 June 2023: Wouter
- Fix python modules with multiple scripts, by incrementing reference
counts.

27 June 2023: George
- Merge #892: Add cachedb hit stat. Introduces 'num.query.cachedb' as
a new statistical counter.
- Remove warning about unknown cast-function-type warning pragma.

22 June 2023: Wouter
- Merge #903: contrib: add yocto compatible init script.

15 June 2023: Philip
- Fix for issue #887 (Timeouts to forward servers on BSD based
system with ASLR)
- Probably fixes #516 (Stream reuse does not work on Windows) as well

14 June 2023: George
- Properly handle all return values of worker_check_request during
early EDE code.
- Do not check the incoming request more than once.

12 June 2023: Wouter
- Merge #896: Fix: #895: pythonmodule: add all site-packages
directories to sys.path.
- Fix #895: python + sysconfig gives ANOTHER path comparing to
distutils.
- Fix for uncertain unit test for doh buffer size events.

25 May 2023: Wouter
- Fix unbound-dnstap-socket printout when no query is present.
- Fix unbound-dnstap-socket time fraction conversion for printout.

19 May 2023: Wouter
- Fix RPZ removal of client-ip, nsip, nsdname triggers from IXFR.
- Fix to remove unused variables from RPZ clientip data structure.

16 May 2023: Wouter
- Fix #888: [FR] Use kernel timestamps for dnstap.
- Fix to print debug log for ancillary data with correct IP address.

11 May 2023: Wouter
- Fix warning in windows compile, in set_recvtimestamp.

4 May 2023: Wouter
- Fix #885: Error: util/configlexer.c: No such file or directory,
adds error messages explaining to install flex and bison.
- Fix to remove unused whitespace from acx_nlnetlabs.m4 and config.h.
- Fix doxygen in addr_to_nat64 header definition.

1 May 2023: George
- Merge #722 from David 'eqvinox' Lamparter: NAT64 support.
- For #722: minor fixes, formatting, refactoring.

1 May 2023: Wouter
- Fix RPZ IP responses with trigger rpz-drop on cache entries, that
they are dropped.

26 April 2023: Philip
- Fix issue #860: Bad interaction with 0 TTL records and serve-expired

26 April 2023: Wouter
- Merge #882 from vvfedorenko: Features/dropqueuedpackets, with
sock-queue-timeout option that drops packets that have been in the
socket queue for too long. Added statistics num.queries_timed_out
and query.queue_time_us.max that track the socket queue timeouts.
- Fix for #882: small changes, date updated in Copyright for
util/timeval_func.c and util/timeval_func.h. Man page entries and
example entry.
- Fix for #882: document variable to stop doxygen warning.

19 April 2023: Wouter
- Fix for #878: Invalid IP address in unbound.conf causes Segmentation
Fault on OpenBSD.

14 April 2023: Wouter
- Merge #875: change obsolete txt URL in unbound-anchor.c to point
to RFC 7958, and Fix #874.

13 April 2023: Wouter
- Fix build badge, from failing travis link to github ci action link.

6 April 2023: Wouter
- Fix for #870: Add test case for the qname minimisation and CNAME.

4 April 2023: Wouter
- Fix #870: NXDOMAIN instead of NOERROR rcode when asked for existing
CNAME record.

24 March 2023: Philip
- Fix issue #676: Unencrypted query is sent when
forward-tls-upstream: yes is used without tls-cert-bundle
- Extra consistency check to make sure that when TLS is requested,
either we set up a TLS connection or we return an error.

21 March 2023: Philip
- Fix issue #851: reserved identifier violation

20 March 2023: Wouter
- iana portlist update.

17 March 2023: George
- Fix #812, fix #846, by using the SSL_OP_IGNORE_UNEXPECTED_EOF option
to ignore the unexpected eof while reading in openssl >= 3.

16 March 2023: Wouter
- Fix ssl.h include brackets, instead of quotes.

14 March 2023: Wouter
- Fix unbound-dnstap-socket test program to reply the finish frame
over a TLS connection correctly.

23 February 2023: Wouter
- Fix for #852: Completion of error handling.

21 February 2023: Philip
- Fix #825: Unexpected behavior with client-subnet-always-forward
and serve-expired

10 February 2023: George
- Clean up iterator/iterator.c::error_response_cache() and allow for
better interaction with serve-expired, prefetch and cached error
responses.

9 February 2023: George
- Allow TTL refresh of expired error responses.
- Add testcase for refreshing expired error responses.

9 February 2023: Wouter
- Fix to ignore entirely empty responses, and try at another authority.
This turns completely empty responses, a type of noerror/nodata into
a servfail, but they do not conform to RFC2308, and the retry can
fetch improved content.
- Fix unit tests for spurious empty messages.
- Fix consistency of unit test without roundrobin answers for the
cnametooptout unit test.
- Fix to git ignore the library symbol file that configure can create.

8 February 2023: Wouter
- Fix #841: Unbound won't build with aaaa-filter-iterator.patch.

30 January 2023: George
- Add duration variable for speed_local.test.

26 January 2023: Wouter
- Fix acx_nlnetlabs.m4 for -Wstrict-prototypes.

23 January 2023: George
- Fix #833: [FR] Ability to set the Redis password.

23 January 2023: Wouter
- Fix #835: [FR] Ability to use Redis unix sockets.

20 January 2023: Wouter
- Merge #819: Added new static zone type block_a to suppress all A
queries for specific zones.

19 January 2023: Wouter
- Set max-udp-size default to 1232. This is the same default value as
the default value for edns-buffer-size. It restricts client edns
buffer size choices, and makes unbound behave similar to other DNS
resolvers. The new choice, down from 4096 means it is harder to get
large responses from Unbound. Thanks to Xiang Li, from NISL Lab,
Tsinghua University.
- Add harden-unknown-additional option. It removes
unknown records from the authority section and additional section.
Thanks to Xiang Li, from NISL Lab, Tsinghua University.
- Set default for harden-unknown-additional to no. So that it does
not hamper future protocol developments.
- Fix test for new default.

18 January 2023: Wouter
- Fix not following cleared RD flags potentially enables amplification
DDoS attacks, reported by Xiang Li and Wei Xu from NISL Lab,
Tsinghua University. The fix stops query loops, by refusing to send
RD=0 queries to a forwarder, they still get answered from cache.

13 January 2023: Wouter
- Merge #826: ��dd a metric about the maximum number of collisions in
lrushah.
- Improve documentation for #826, describe the large collisions amount.

9 January 2023: Wouter
- Fix python module install path detection.
- Fix python version detection in configure.

6 January 2023: Wouter
- Fix #823: Response change to NODATA for some ANY queries since
1.12, tested on 1.16.1.
- Fix wildcard in hyperlocal zone service degradation, reported
by Sergey Kacheev. This fix is included in 1.17.1rc2.
That became 1.17.1 on 12 Jan 2023, the code repo continues
with 1.17.2. 1.17.1 excludes fix #823, it is included forwards.

5 January 2023: Wouter
- Tag for 1.17.1 release.

2 January 2023: Wouter
- Fix windows compile for libunbound subprocess reap comm point closes.
- Update github workflows to use checkout v3.

14 December 2022: George
- Merge #569 from JINMEI Tatuya: add keep-cache option to
'unbound-control reload' to keep caches.

13 December 2022: George
- Expose 'statistics-inhibit-zero' as a configuration option; the
default value retains Unbound's behavior.
- Expose 'max-sent-count' as a configuration option; the
default value retains Unbound's behavior.
- Merge #461 from Christian Allred: Add max-query-restarts option.
Exposes an internal configuration but the default value retains
Unbound's behavior.

13 December 2022: Wouter
- Merge #808: Wrap Makefile script's directory variables in quotes.
- Fix to wrap Makefile scripts directory in quotes for uninstall.

1 December 2022: Wouter
- Fix #773: When used with systemd-networkd, unbound does not start
until systemd-networkd-wait-online.service times out.

30 November 2022: George
- Add SVCB and HTTPS to the types removed by 'unbound-control flush'.
- Clear documentation for interactivity between the subnet module and
the serve-expired and prefetch configuration options.

30 November 2022: Wouter
- Fix #782: Segmentation fault in stats.c:404.

28 November 2022: Wouter
- Fix for the ignore of tcp events for closed comm points, preserve
the use after free protection features.

23 November 2022: Philip
- Merge #720 from jonathangray: fix use after free when
WSACreateEvent() fails.

22 November 2022: George
- Ignore expired error responses.

11 November 2022: Wouter
- Fix #779: [doc] Missing documention in ub_resolve_event() for
callback parameter was_ratelimited.

9 November 2022: George
- Complementary fix for distutils.sysconfig deprecation in Python 3.10
to commit 62c5039ab9da42713e006e840b7578e01d66e7f2.

8 November 2022: Wouter
- Fix to ignore tcp events for closed comm points.
- Fix to make sure to not read again after a tcp comm point is closed.
- Fix #775: libunbound: subprocess reap causes parent process reap
to hang.
- iana portlist update.

21 October 2022: George
- Merge #767 from jonathangray: consistently use IPv4/IPv6 in
unbound.conf.5.

21 October 2022: Wouter
- Fix that cachedb does not store failures in the external cache.

18 October 2022: George
- Clarify the use of MAX_SENT_COUNT in the iterator code.

17 October 2022: Wouter
- testcode/dohclient sets log identity to its name.

14 October 2022: Wouter
- Merge #768 from fobser: Arithmetic on a pointer to void is a GNU
extension.
- In unit test, print python script name list correctly.

13 October 2022: Wouter
- Tag for 1.17.0 release. The code repository continues with 1.17.1.

11 October 2022: George
- Fix PROXYv2 header read for TCP connections when no proxied addresses
are provided.

7 October 2022: Wouter
- Tag for 1.17.0rc1 release.

7 October 2022: George
- Fix to stop possible loops in the tcp reuse code (write_wait list
and tcp_wait list). Based on analysis and patch from Prad Seniappan
and Karthik Umashankar.
- Fix unit test to properly test the reuse_write_wait_pop function.

6 October 2022: Wouter
- Fix to stop responses with TC flag from resulting in partial
responses. It retries to fetch the data elsewhere, or fails the
query and in depth fix removes the TC flag from the cached item.
- Fix proxy length debug output printout typecasts.

5 October 2022: Wouter
- Fix dnscrypt compile for proxy protocol code changes.

5 October 2022: George
- Use DEBUG_TDIR from environment in mini_tdir.sh for debugging.
- Fix string comparison in mini_tdir.sh.
- Make ede.tdir test more predictable by using static data.
- Fix checkconf test for dnscrypt and proxy port.

4 October 2022: George
- Merge #764: Leniency for target discovery when under load (for
NRDelegation changes).

4 October 2022: Wouter
- Fix static analysis report to remove dead code from the
rpz_callback_from_iterator_module function.
- Fix to clean up after the acl_interface unit test.

3 October 2022: George
- Merge #760: PROXYv2 downstream support. (New proxy-protocol-port
configuration option).

3 October 2022: Wouter
- Fix to remove erroneous TC flag from TCP upstream.
- Fix test tdir skip report printout.
- Fix windows compile, the identifier interface is defined in headers.
- Fix to close errno block in comm_point_tcp_handle_read outside of
ifdef.

26 September 2022: George
- Better output for skipped tdir tests.

Import unbound-1.16.3; last import was 1.13.1

21 September 2022: Wouter
- Patch for CVE-2022-3204 Non-Responsive Delegation Attack.
- This patch was released in 1.16.3, the code repository continues
with the previous features and fixes for 1.17.0.
- Fix doxygen warning in respip.h.

20 September 2022: George
- Convert tdir tests to use the new skip_test functionality.
- Remove unused testcode/mini_tpkg.sh file.

16 September 2022: George
- Merge #753: ACL per interface. (New interface-* configuration
options).

2 September 2022: Wouter
- Remove include that was there for debug purposes.
- Fix to check pthread_t size after pthread has been detected.

1 September 2022: Wouter
- Fix to update config tests to fix checking if nonblocking sockets
work on OpenBSD.
- Slow down log frequency of write wait failures.
- Fix to set out of file descriptor warning to operational verbosity.
- Fix to log a verbose message at operational notice level if a
thread is not responding, to stats requests. It is logged with
thread identifiers.

31 August 2022: Wouter
- Fix to avoid process wide fcntl calls mixed with nonblocking
operations after a blocked write.
- Patch from Vadim Fedorenko that adds MSG_DONTWAIT to receive
operations, so that instruction reordering does not cause mistakenly
blocking socket operations.
- Fix to wait for blocked write on UDP sockets, with a timeout if it
takes too long the packet is dropped.
- Fix for wait for udp send to stop when packet is successfully sent.

22 August 2022: Wouter
- Fix #741: systemd socket activation fails on IPv6.

12 August 2022: Wouter
- Fix to log accept error ENFILE and EMFILE errno, but slowly, once
per 10 seconds. Also log accept failures when no slow down is used.

5 August 2022: Wouter
- Fix #734 [FR] enable unbound-checkconf to detect more (basic)
errors.

4 August 2022: Wouter
- Fix ratelimit inconsistency, for ip-ratelimits the value is the
amount allowed, like for ratelimits.

2 August 2022: Wouter
- Fix edns subnet so that scope 0 answers only match sourcemask 0
queries for answers from cache if from a query with sourcemask 0.
- Fix unittest for edns subnet change.
- Merge #730 from luisdallos: Fix startup failure on Windows 8.1 due
to unsupported IPV6_USER_MTU socket option being set.

1 August 2022: Wouter
- Fix the novel ghost domain issues CVE-2022-30698 and CVE-2022-30699.
- Tests for ghost domain fixes.
- Tag for 1.16.2 release. The code repo continues with 1.16.3.
- Fix #728: alloc_reg_obtain() core dump. Stop double
alloc_reg_release when serviced_create fails.

19 July 2022: George
- Update documentation for 'outbound-msg-retry:'.

19 July 2022: Wouter
- Merge #718: Introduce infra-cache-max-rtt option to config max
retransmit timeout.

15 July 2022: Wouter
- Merge PR 714: Avoid treat normal hosts as unresponsive servers.
And fixup the lock code.
- iana portlist update.

12 July 2022: George
- For windows crosscompile, fix setting the IPV6_MTU socket option
equivalent (IPV6_USER_MTU); allows cross compiling with latest
cross-compiler versions.

12 July 2022: Wouter
- Fix dname count in sldns parse type descriptor for SVCB and HTTPS.

11 July 2022: Wouter
- Fix verbose EDE error printout.

4 July 2022: George
- Fix bug introduced in 'improve val_sigcrypt.c::algo_needs_missing for
one loop pass'.
- Merge PR #668 from Cristian Rodr�guez: Set IP_BIND_ADDRESS_NO_PORT on
outbound tcp sockets.

4 July 2022: Wouter
- Tag for 1.16.1rc1 release. This became 1.16.1 on 11 July 2022.
The code repo continues with version 1.16.2 under development.

3 July 2022: George
- Merge PR #671 from Petr Men#�k: Disable ED25519 and ED448 in FIPS
mode on openssl3.
- Merge PR #660 from Petr Men#�k: Sha1 runtime insecure.
- For #660: formatting, less verbose logging, add EDE information.
- Fix for correct openssl error when adding windows CA certificates to
the openssl trust store.
- Improve val_sigcrypt.c::algo_needs_missing for one loop pass.
- Reintroduce documentation and more EDE support for
val_sigcrypt.c::dnskeyset_verify_rrset_sig.

1 July 2022: George
- Merge PR #706: NXNS fallback.
- From #706: Cached NXDOMAIN does not increase the target nx
responses.
- From #706: Don't generate parent side queries if we already
have the lame records in cache.
- From #706: When a lame address is the best choice, don't try to
generate target queries when the missing targets are all lame.

29 June 2022: Wouter
- iana portlist update.
- Fix detection of libz on windows compile with static option.
- Fix compile warning for windows compile.

29 June 2022: George
- Add debug option to the mini_tdir.sh test code.
- Fix #704: [FR] Statistics counter for number of outgoing UDP queries
sent; introduces 'num.query.udpout' to the 'unbound-control stats'
command.
- Fix to not count cached NXDOMAIN for MAX_TARGET_NX.
- Allow fallback to the parent side when MAX_TARGET_NX is reached.
This will also allow MAX_TARGET_NX more NXDOMAINs.

28 June 2022: George
- Show the output of the exact .rpl run that failed with 'make test'.
- Fix for cached 0 TTL records to not trigger prefetching when
serve-expired-client-timeout is set.

28 June 2022: Wouter
- Fix test program dohclient close to use portability routine.

23 June 2022: Tom
- Clarify -v flag manpage entry (#705)

22 June 2022: Philip
- Fix #663: use after free issue with edns options.

21 June 2022: Philip
- Fix for loading locally stored zones that have lines with blanks or
blanks and comments.

20 June 2022: George
- Remove unused LDNS function check for GOST Engine unloading.

14 June 2022: George
- Merge PR #688: Rpz url notify issue.
- Note in the unbound.conf text that NOTIFY is allowed from the url:
addresses for auth and rpz zones.

3 June 2022: George
- Fix for edns client subnet to respect not looking in its cache when
instructed to do so (e.g., prefetch).

3 June 2022: Wouter
- makedist.sh picks up 32bit libssp-0.dll when 32bit compile.

27 May 2022: Wouter
- Fix #684: [FTBS] configure script error with libmnl on openSUSE 15.3 (and possibly other distributions)
- Version is set to 1.16.0 for release. Release tag 1.16.0rc1. This
became release 1.16.0 on 2 June 2022. The source code branch
continues with version 1.16.1 under development.

20 May 2022: Wouter
- Fix to silence test for ede error output to the console from the
test setup script.
- Fix ede test to not use default pidfile, and use local interface.
- Fix some lint type warnings.

18 May 2022: George
- Fix typos in config_set_option for the 'num-threads' and
'ede-serve-expired' options.

15 May 2022: George
- Fix #678: [FR] modify behaviour of unbound-control rpz_enable zone,
by updating unbound-control's documentation.

12 May 2022: George
- Fix #417: prefetch and ECS causing cache corruption when used
together.

12 May 2022: Wouter
- Merge #677: Allow using system certificates not only on Windows,
from pemensik.
- For #677: Added tls-system-cert to config parser and documentation.

11 May 2022: Wouter
- Fix #673: DNS over TLS: error: SSL_handshake syscall: No route to
host.

10 May 2022: George
- Fix Python build in non-source directory; based on patch by
Michael Tokarev.

6 May 2022: Tom
- Merge PR #604: Add basic support for EDE (RFC8914).

28 April 2022: Wouter
- Fix #670: SERVFAIL problems with unbound 1.15.0 running on
OpenBSD 7.1.

8 April 2022: Wouter
- Fix zonemd check to allow unsupported algorithms to load.
If there are only unsupported algorithms, or unsupported schemes,
and no failed or successful other ZONEMD records, or malformed
or bad ZONEMD records, the unsupported records allow the zone load.
- Fix zonemd unsupported algo check.
- Fix zonemd unsupported algo check reason to not copy to next record,
and check for success for debug printout.
- Fix zonemd unsupported algo check to print unsupported reason before
zeroing it.
- Fix zonemd unsupported algo check to set reason to NULL before the
check routine, but after malformed checks, to get the correct NULL
output when the digest matches.

25 March 2022: Wouter
- Fix spelling error in comment in sldns_str2wire_svcparam_key_lookup.

23 March 2022: Wouter
- Fix #651: [FR] Better logging for refused queries.

18 March 2022: George
- Merge PR #648 from eaglegai: fix -q doesn't work when use with
'unbound-control stats_shm'.

17 March 2022: Wouter
- Fix to describe auth-zone and other configuration at the local-zone
configuration option, to allow for more broadly view of the options.

16 March 2022: Wouter
- Fix to ensure uniform handling of spaces and tabs when parsing RRs.

9 March 2022: Wouter
- Merge #644: Make `install-lib` make target install the pkg-config
file.

7 March 2022: Wouter
- Fix configure for python to use sysutils, because distutils is
deprecated. It uses sysutils when available, distutils otherwise.

3 March 2022: Wouter
- Fix #637: Integer Overflow in sldns_str2period function.
- Fix for #637: fix integer overflow checks in sldns_str2period.

2 March 2022: George
- Merge PR #632 from scottrw93: Match cnames in ipset.
- Various fixes for #632: variable initialisation, convert the qinfo
to str once, accept trailing dot in the local-zone ipset option.

2 March 2022: Wouter
- Fix compile warnings for printf ll format on mingw compile.

1 March 2022: Wouter
- Fix pythonmod for change in iter_dp_is_useless function prototype.

28 February 2022: George
- Fix #630: Unify the RPZ log messages.
- Merge #623 from rex4539: Fix typos.

28 February 2022: Wouter
- Fix #633: Document unix domain socket support for unbound-control.
- Fix for #633: updated fix with new text.
- Fix edns client subnet to add the option based on the option list,
so that it is not state dependent, after the state fix of #605 for
double EDNS options.
- Fix for edns client subnet option add fix in removal code, from review.

25 February 2022: Wouter
- Fix to detect that no IPv6 support means that IPv6 addresses are
useless for delegation point lookups.
- update Makefile dependencies.
- Fix check interface existence for support detection in remote lookup.

18 February 2022: Wouter
- Fix that address not available is squelched from the logs for
udp connect failures. It is visible on verbosity 4 and more.
- Merge #631 from mollyim: Replace OpenSSL's ERR_PACK with
ERR_GET_REASON.

16 February 2022: Wouter
- Fix for #628: fix rpz-passthru for qname trigger by localzone type.

15 February 2022: Wouter
- Fix #628: A rpz-passthru action is not ending RPZ zone processing.

11 February 2022: Wouter
- Fix #624: Unable to stop Unbound in Windows console (does not
respond to CTRL+C command).
- Fix #618: enabling interface-automatic disables DNS-over-TLS.
Adds the option to list interface-automatic-ports.
- Remove debug info from #618 fix.

7 February 2022: Wouter
- Fix that TCP interface does not use TLS when TLS is also configured.

4 February 2022: Wouter
- Fix #412: cache invalidation issue with CNAME+A.

3 February 2022: Wouter
- Fix for #611: Integer overflow in sldns_wire2str_pkt_scan.
- Tag for 1.15.0rc1 created. That became 1.15.0 on 10 feb 2022.
The repository continues with version 1.15.1.

2 February 2022: George
- Merge PR #532 from Shchelk: Fix: buffer overflow bug.
- Merge PR #616: Update ratelimit logic. It also introduces
ratelimit-backoff and ip-ratelimit-backoff configuration options.
- Change aggressive-nsec default to yes.
- Merge PR #617: Update stub/forward-host notation to accept port and
tls-auth-name.
- Update stream_ssl.tdir test to also use the new forward-host
notation.

2 February 2022: Wouter
- Update version number in repo to 1.15.0 for upcoming release,
since it changes the aggressive-nsec default and the ratelimit change.
- Fix header comment for doxygen for authextstrtoaddr.
- please clang analyzer for loop in test code.
- Fix docker splint test to use more portable uname.
- Update contrib/aaaa-filter-iterator.patch with diff for current
software version.

1 February 2022: George
- Merge PR #603 from fobser: Use OpenSSL 1.1 API to access DSA and RSA
internals.

31 January 2022: George
- Fix review comment for use-after-free when failing to send UDP out.

31 January 2022: Wouter
- iana portlist update.

29 January 2022: George
- Fix tls-* and ssl-* documented alternate syntax to also be available
through remote-control and unbound-checkconf.
- Better cleanup on failed DoT/DoH listening socket creation.

26 January 2022: George
- Fix #599: [FR] RFC 9156 (obsoletes RFC 7816), by noting the new RFC
document.

26 January 2022: Wouter
- Test for NSID in SERVFAIL response due to DNSSEC bogus.

25 January 2022: George
- Fix #588: Unbound 1.13.2 crashes due to p->pc is NULL in
serviced_udp_callback.
- Merge PR #612: TCP race condition.

25 January 2022: Wouter
- Fix #610: Undefine-shift in sldns_str2wire_hip_buf.

19 January 2022: George
- For dnstap, do not wakeupnow right there. Instead zero the timer to
force the wakeup callback asap.

14 January 2022: George
- Merge PR #605:
- Fix EDNS to upstream where the same option could be attached
more than once.
- Add a region to serviced_query for allocations.

14 January 2022: Wouter
- Add rpz: for-downstream: yesno option, where the RPZ zone is
authoritatively answered for, so the RPZ zone contents can be
checked with DNS queries directed at the RPZ zone.
- For #602: Allow the module-config "subnetcache validator cachedb
iterator".

11 January 2022: George
- Fix prematurely terminated TCP queries when a reply has the same ID.

7 January 2022: Wouter
- Merge #600 from pemensik: Change file mode before changing file
owner.

5 January 2022: Wouter
- Fix for #596: fix that rpz return message is returned and not just
the rcode from the iterator return path. This fixes signal unset RA
after a CNAME.
- Fix unit tests for rpz now that the AA flag returns successfully from
the iterator loop.
- Fix for #596: add unit test for nsdname trigger and signal unset RA.
- Fix for #596: add unit test for nsip trigger and signal unset RA.
- Fix #598: Fix unbound-checkconf fatal error: module conf
'respip dns64 validator iterator' is not known to work.
- Fix for #596: Fix rpz-signal-nxdomain-ra to work for clientip
triggered operation.

4 January 2022: Wouter
- Fix #596: unset the RA bit when a query is blocked by an unbound
RPZ nxdomain reply. The option rpz-signal-nxdomain-ra allows to
signal that a domain is externally blocked to clients when it
is blocked with NXDOMAIN by unsetting RA.
- Fix to add test for rpz-signal-nxdomain-ra.
- Fix #596: only unset RA when NXDOMAIN is signalled.
- Fix that RPZ does not set RD flag on replies, it should be copied
from the query.

22 December 2021: George
- contrib/aaaa-filter-iterator.patch file renewed diff content to
apply cleanly to the current coderepo for the current code version.

20 December 2021: George
- Fix #591: Unbound-anchor manpage links to non-existent license file.

13 December 2021: George
- Add missing configure flags for optional features in the
documentation.
- Fix Unbound capitalization in the documentation.

13 December 2021: Wouter
- Fix to pick up other class local zone information before unlock.

10 December 2021: George
- Allow local-data for classes other than IN to inherit a configured
local-zone's type if possible, instead of defaulting to type
transparent as per the implicit rule.

10 December 2021: Wouter
- Add code similar to fix for ldns for tab between strings, for
consistency, the test case was not broken.

6 December 2021: Wouter
- Merge PR #581 from fobser: Fix -Wmissing-prototypes and -Wshadow
warnings in rpz.
- Fix validator debug output about DS support, print correct algorithm.

3 December 2021: Wouter
- Fix compile warning for if_nametoindex on windows 64bit.

1 December 2021: Wouter
- configure is set to 1.14.0, and release branch.
This was released as version 1.14.0 on 9 Dec 2021, with the doxygen
fix below included. The main branch continues as 1.14.1.
- Fix doc/unbound.doxygen to remove obsolete tag warning.

1 December 2021: George
- Merge PR #511 from yan12125: Reduce unnecessary linking.
- Merge PR #493 from Jaap: Fix generation of libunbound.pc.
- Merge PR #555 from fobser: Allow interface names as scope-id in IPv6
link-local addresses.
- Merge PR #562 from Willem: Reset keepalive per new tcp session.
- Merge PR #522 from sibeream: memory management violations fixed.
- Merge PR #530 from Shchelk: Fix: dereferencing a null pointer.
- Fix #454: listen_dnsport.c:825: error: `IPV6_TCLASS' undeclared.
- Fix #574: Review fixes for size allocation.

30 November 2021: Wouter
- Fix to remove git tracking and ci information from release tarballs.
- iana portlist update.

29 November 2021: Wouter
- Merge PR #570 from rex4539: Fix typos.
- Fix for #570: regen aclocal.m4, fix configure.ac for spelling.
- Fix to make python module opt_list use opt_list_in.
- Fix #574: unbound-checkconf reports fatal error if interface names
are used as value for interfaces:
- Fix #574: Review fixes for it.
- Fix #576: [FR] UB_* error codes in unbound.h
- Fix #574: Review fix for spelling.

15 November 2021: Tom
- Improve EDNS option handling, now also works for synthesised
responses such as local-data and server.id CH TXT responses.

5 November 2021: George
- Fix for #558: fix loop in comm_point->tcp_free when a comm_point is
reclaimed more than once during callbacks.
- Fix for #558: clear the UB_EV_TIMEOUT bit before adding an event.

5 November 2021: Wouter
- Fix that forward-zone name is documented as the full name of the
zone. It is not relative but a fully qualified domain name.
- Fix analyzer review failure in rpz action override code to not
crash on unlocking the local zone lock.
- Fix to remove unused code from rpz resolve client and action
function.
- Merge #565: unbound.service.in: Disable ProtectKernelTunables again.

2 November 2021: Wouter
- Fix #552: Unbound assumes index.html exists on RPZ host.

11 October 2021: Wouter
- Fix chaos replies to have truncation for short message lengths,
or long reply strings.
- Fix to protect custom regional create against small values.

4 October 2021: Wouter
- Fix to add example.conf note for outbound-msg-retry.

27 September 2021: Wouter
- Implement RFC8375: Special-Use Domain 'home.arpa.'.

21 September 2021: Wouter
- For crosscompile on windows, detect 64bit stackprotector library.
- Fix crosscompile shell syntax.
- Fix crosscompile windows to use libssp when it exists.
- For the windows compile script disable gost.
- Fix that on windows, use BIO_set_callback_ex instead of deprecated
BIO_set_callback.
- Fix crosscompile script for the shared build flags.

20 September 2021: Wouter
- Fix crosscompile on windows to work with openssl 3.0.0 the
link with ws2_32 needs -l:libssp.a for __strcpy_chk.
Also copy results from lib64 directory if needed.

10 September 2021: Wouter
- Fix initialisation errors reported by gcc sanitizer.
- Fix lock debug code for gcc sanitizer reports.
- Fix more initialisation errors reported by gcc sanitizer.

8 September 2021: Wouter
- Merged #41 from Moritz Schneider: made outbound-msg-retry
configurable.
- Small fixes for #41: changelog, conflicts resolved,
processQueryResponse takes an iterator env argument like other
functions in the iterator, no colon in string for set_option,
and some whitespace style, to make it similar to the rest.
- Fix for #41: change outbound retry to int to fix signed comparison
warnings.
- Fix root_anchor test to check with new icannbundle date.

3 September 2021: Wouter
- Fix #538: Fix subnetcache statistics.

1 September 2021: Wouter
- Fix tcp fastopen failure when disabled, try normal connect instead.

27 August 2021: Wouter
- Fix #533: Negative responses get cached even when setting
cache-max-negative-ttl: 1

25 August 2021: Wouter
- Merge #401: RPZ triggers. This add additional RPZ triggers,
unbound supports a full set of rpz triggers, and this now
includes nsdname, nsip and clientip triggers. Also actions
are fully supported, and this now includes the tcp-only action.
- Fix #536: error: RPZ: name of record (drop.spamhaus.org.rpz.local.)
to insert into RPZ.
- Fix the stream wait stream_wait_count_lock and http2 buffer locks
setup and desetup from race condition.
- Fix RPZ locks. Do not unlock zones lock if requested and rpz find
zone does not find the zone. Readlock the clientip that is found
for ipbased triggers. Unlock the nsdname zone lock when done.
Unlock zone and ip in rpz nsip and nsdname callback. Unlock
authzone and localzone if clientip found in rpz worker call.
- Fix compile warning in libunbound for listen desetup routine.
- Fix asynclook unit test for setup of lockchecks before log.

20 August 2021: Wouter
- Fix #529: Fix: log_assert does nothing if UNBOUND_DEBUG is
undefined.
- Fix #531: Fix: passed to proc after free.

17 August 2021: Wouter
- Fix that --with-ssl can use "/usr/include/openssl11" to pass the
location of a different openssl version.
- Fix #527: not sending quad9 cert to syslog (and may be more).
- Fix sed script in ssldir split handling.

16 August 2021: George
- Merge PR #528 from fobser: Make sldns_str2wire_svcparam_buf()
static.

16 August 2021: Wouter
- Fix to support harden-algo-downgrade for ZONEMD dnssec checks.

13 August 2021: Wouter
- Support using system-wide crypto policies.
- Fix for #431: Squelch permission denied errors for udp connect,
and udp send, they are visible at higher verbosity settings.
- Fix zonemd verification of key that is not in DNS but in the zone
and needs a chain of trust.
- zonemd, fix order of bogus printout string manipulation.

12 August 2021: George
- Merge PR #514, from ziollek: Docker environment for run tests.
- For #514: generate configure.

12 August 2021: Wouter
- And 1.13.2rc1 became the 1.13.2 with the fix for the python module
build. The current code repository continues with version 1.13.3.
- Add test tool readzone to .gitignore.
- Merge #521: Update mini_event.c.
- Merge #523: fix: free() call more than once with the same pointer.
- Merge #519: Support for selective enabling tcp-upstream for
stub/forward zones.
- For #519: note stub-tcp-upstream and forward-tcp-upstream in
the example configuration file.
- For #519: yacc and lex. And fix python bindings, and test program
unbound-dnstap-socket.
- For #519: fix comments for doxygen.
- Fix to print error from unbound-anchor for writing to the key
file, also when not verbose.

5 August 2021: Wouter
- Tag for 1.13.2rc1 release.
- Fix #520: Unbound 1.13.2rc1 fails to build python module.

4 August 2021: George
- Merge PR #415 from sibeream: Use
/proc/sys/net/ipv4/ip_local_port_range to determine available outgoing
ports. (New --enable-linux-ip-local-port-range configuration option)
- Bump MAX_RESTART_COUNT to 11 from 8; in relation to #438. This
allows longer CNAME chains in Unbound.

4 August 2021: Wouter
- In unit test use openssl set security level to allow keys in test.
- Fix static analysis warnings about localzone locks that are unused.
- Fix missing locks in zonemd unit test.
- Fix readzone compile under debug config.
- Fix out of sourcedir run of zonemd unit tests.
- Fix libnettle zonemd unit test.
- Fix unit test zonemd_reload for use in run_vm.

3 August 2021: George
- Listen to read or write events after the SSL handshake.
Sticky events on windows would stick on read when write was needed.

3 August 2021: Wouter
- Merge PR #517 from dyunwei: #420 breaks the mesh reply list
function that need to reuse the dns answer.
- Annotate assertion into error printout; we think it may be an
error, but the situation looks harmless.
- Fix sign comparison warning on FreeBSD.

2 August 2021: Wouter
- Prepare for OpenSSL 3.0.0 provider API usage, move the sldns
keyraw functions to produce EVP_PKEY results.
- Move RSA and DSA to use OpenSSL 3.0.0 API.
- Move ECDSA functions to use OpenSSL 3.0.0 API.
- iana portlist update.
- Fix verbose printout failure in tcp reuse unit test.

30 July 2021: Wouter
- Fix #515: Compilation against openssl 3.0.0 beta2 is failing to
build unbound.
- For #515: Fix compilation with openssl 3.0.0 beta2, lib64 dir and
SSL_get_peer_certificate.
- Move acx_nlnetlabs.m4 to version 41, with lib64 openssl dir check.

26 July 2021: George
- Merge #513: Stream reuse, attempt to fix #411, #439, #469. This
introduces a couple of fixes for the stream reuse functionality
that could result in broken internal structures.

26 July 2021: Wouter
- Merge #512: unbound.service.in: upgrade hardening to latest
standards.
- Fix readzone unknown type print for memory resize.

21 July 2021: Wouter
- Fix that ldns_zone_new_frm_fp_l counts the line number for an empty
line after a comment.

16 July 2021: George
- Introduce 'http-user-agent:' and 'hide-http-user-agent:' options.

16 July 2021: Wouter
- Merge #510 from ndptech: Don't call a function which hasn't been
defined.
- Fix for #510: in depth, use ifdefs for windows api event calls.
- Fix spelling in doc/unbound.doxygen comment.
- Fix spelling in localzone.h comment.
- Fix unbound-control local_data and local_datas to print detailed
syntax errors.
- review fix to remove duplicate error printout.
- Insert header into testcode/readzone.c, it was missing.
- Fix from lint for ignored return value.
- Fix for older parsers for function call in serve expired get cached.

6 July 2021: Wouter
- iana portlist update.

5 July 2021: George
- Fix compiler warnings for #491.
- Fix clang-analysis warnings for testcode/readzone.c.

4 July 2021: George
- Fix Wunused-result compile warnings.

2 July 2021: Tom
- Merge PR #491: Add SVCB and HTTPS types and handling according to
draft-ietf-dnsop-svcb-https.

2 July 2021: Wouter
- Fix #506: Python Module Seems to Leak Memory if it Experiences an
Unhandled Exception.

25 June 2021: Wouter
- Fix up permissions on rpl data file in tests.
- Fix testbound newline treatment in moment_read and tempfile write.
- Fix configure grep for reuseport default for failure.
- Fix compat ctime_r return value
- Fix configure does not require pkg-config if not needed.
- Fix unit test in the ctime_r calls for autotrust and in testbound.
- Fix auth zone download on windows to unlink before rename.

24 June 2021: Wouter
- Add analyzer and port compile github workflow.

23 June 2021: Wouter
- Fix #503: DNS over HTTPS response truncated.
- Fix warnings reported by the gcc analyzer.

21 June 2021: George
- Fix #495: Documentation or implementation of "verbosity" option.

18 June 2021: Wouter
- Fix a number of warnings reported by the gcc analyzer.

15 June 2021: George
- Merge #440 by kimheino: Various fixes to contrib/unbound_munin_ file.

14 June 2021: Wouter
- Fix configure nonblocking test and onmingw test to use host.

10 June 2021: Wouter
- Fix #500: SPEC file in version 1.13.1 references version 1.4;
unable to build RPM from source.
- Fix contrib/unbound.spec, fixed url and comment.

9 June 2021: George
- Merge #486 by fobster: Make VAL_MAX_RESTART_COUNT configurable.
- Generated lexer and parser for #486; updated example.conf.
- Fix #413 (based on patch by k-ronny): unbound: does not compile
on macOS 11.1-x86_64 host.
- Use host_os instead of target_os in configure for Darwin8 build.

8 June 2021: George
- Fix unused variable warning when compiling with --enable-dnstap.

7 June 2021: George
- Merge #448 from shoeper: Update unbound-control.8.in, fix
rpz_disable typo.
- Fix #425: Document auth-zone supports communication with DNS
primary on nondefault port.

1 June 2021: George
- Fix test for zonemd-check option.

27 May 2021: Wouter
- Merge #496 from banburybill: Use build system endianness if
available, otherwise try to work it out.
- zonemd-check: yesno option, default no, enables the processing
of ZONEMD records for that zone.

25 May 2021: Wouter
- Move the NSEC3 max iterations count in line with the 150 value
used by BIND, Knot and PowerDNS. This sets the default value
for it in the configuration to 150 for all key sizes.
- Fix #492: module-config respip missing in unbound.conf.5.in man
page. Merges #494 from he32.
- For #492: Fix font highlighting for the man page on emacs.

21 May 2021: Wouter
- Test code has -q option for quiet output.

19 May 2021: George
- Fix for #411, #439, #469: Reset the DNS message ID when moving queries
between TCP streams.
- Refactor for uniform way to produce random DNS message IDs.

17 May 2021: Wouter
- Fix #489: Compile using MSYS2 MinGW 64-bit.

12 May 2021: Wouter
- Fix that auth-zone zonefiles use last TTL if no TTL is specified.

10 May 2021: Wouter
- Merge PR #487: ifdef RLIMIT_AS in recently added check.

7 May 2021: Wouter
- Fix #485: Unbound occasionally reports broken stats.
- Add ./configure --with-deprecate-rsa-1024 that turns off RSA 1024.
- Remove case fallthrough from deprecate-rsa-1024 code.

4 May 2021: George
- Fix for #367: only attempt to get the interface for queries that are no
longer on the tcp_waiting_list.
- Add more logging for out-of-memory cases.

4 May 2021: Wouter
- Merge #478: Allow configuration of TCP timeout while waiting for
response.
- Fix to squelch tcp socket bind failures when the interface is gone.
- Rerun flex and bison.

3 May 2021: Wouter
- Fix #481: Fix comment in configuration file.

29 April 2021: Wouter
- Add that log-servfail prints an IP address and more information
about one of the last failures for that query.

28 April 2021: George
- Fix compiler warning for signed/unsigned comparison for
max_reuse_tcp_queries.

28 April 2021: Wouter
- Fix #474: always_null and others inside view.

26 April 2021: Wouter
- Merge #470 from edevil: Allow configuration of persistent TCP
connections.

22 April 2021: Wouter
- Merge #466 from FGasper: Support OpenSSLs that lack
SSL_get0_alpn_selected.
- Fix #468: OpenSSL 1.0.1 can no longer build Unbound.
- Further fix for #468: detect SSL_CTX_set_alpn_protos for build with
OpenSSL 1.0.1.
- Fix that testcode dohclient has OpenSSL initialisation calls.

13 April 2021: George
- Fix documentation comment for files previously residing in checkconf/.
- Remove unused functions worker_handle_reply and libworker_handle_reply.

13 April 2021: Wouter
- Fix that nxdomain synthesis does not happen above the stub or
forward definition.

12 April 2021: George
- Fix (increase) verbosity level for iterator error log in
processQueryTargets().

12 April 2021: Wouter
- Fix permission denied sendto log, squelch the log messages
unless high verbosity is set.

9 April 2021: Wouter
- rebuild configure to set EXTRALINK to libunbound.la for #460.

7 April 2021: Wouter
- Fix for #411: Depth protect for crash on deleted element timeout.

1 April 2021: Wouter
- Merge #460 from orbea: build: Link with the libtool archive.
- Fix to stop IPv6 PMTU discovery.

31 March 2021: George
- Clean makedist.sh.

31 March 2021: Wouter
- Fix stack-protector change to not override other CFLAGS options.

30 March 2021: George
- Disable the use of stack-protector for cross compiled 32-bit windows
builds; relates to #444.

25 March 2021: Wouter
- Fix #429: Also fix end of transfer for http download of auth zones.

24 March 2021: Wouter
- Fix deprecation test to work for iOS TVOS and WatchOS, it uses
CFLAGS and CPPFLAGS and also checks if the item is unavailable.
- Travis, fix script to fail when tasks fail.
- Travis, fix warning in ubsan compile.
- Fix configure Targetconfiditionals.h header check, to use compile.
- Fix that cachedb does not produce empty object files when disabled.

23 March 2021: Wouter
- Travis enable all tests again. Clang analyzer only a couple times,
when there is a difference. homebrew updates disabled, so it does
not hang. removed trailing slashes from configure paths. Moved iOS
tests to allow-failure.
- travis, analyzer disabled on test without debug, that does not
run anway. Turn off failing tests except one. Update iOS test
to xcode image 12.2.

22 March 2021: George
- Fix unused-function warning when compiling with --enable-dnscrypt.
- Fix for #367: fix memory leak when cannot bind to listening port.
- Reformat pythonmod/pythonmod_utils.{c,h}.

22 March 2021: Wouter
- Merge #449 from orbea: build: Add missing linker flags.
- iana portlist update.
- Comment out nonworking OSX and IOS travis tests, vm fails to start.
- Fix compile error in listen_dnsport on Android.
- Fix memory leak reported by asan in rpz SOA record query name.

19 March 2021: Wouter
- Fix for #447: squelch connection refused tcp connection failures
from the log, unless verbosity is high.

17 March 2021: Wouter
- Fix #441: Minimal NSEC range not accepted for top level domains.

11 March 2021: Wouter
- Fix parse of LOC RR type for decimetres.

5 March 2021: Wouter
- Workaround for #439: prevent loops in the reuse rbtree.
- Debug output for #411 and #439: printout internal error and details.

4 March 2021: Wouter
- iana portlist update.
- Fix spurious errors about "Could not generate request: out of
memory". The mesh detect cycle routine no longer wrongly stops
the check when the calling mesh state is unique.

26 February 2021: George
- Fix for #367: rc_ports don't have ub_sock; skip cleaning up.

26 February 2021: Wouter
- Fix: Resolve interface names on control-interface too.

25 February 2021: Wouter
- Merge PR #367 : DNSTAP log local address. With code from PR #365
and fixes #368 : dnstap does not log the DNS message ID for
FORWARDER_QUERY.
- Fix to allow rpz with wildcard that applies to all TLDs at once.

24 February 2021: George
- Fix #384: (1) A minor request to improve the log (2) A minor bug in one
log message.
- ipsecmod: Better logging for detecting a cycle when attaching the
A/AAAA subquery.

24 February 2021: Wouter
- On startup of unbound it checks if rlimits on memory size look
sufficient for the configured cache size, and logs warning if not.
- Fix function documentation.
- Fix unit test for added ulimit checks.
- spelling fix in header.

23 February 2021: Wouter
- Fix for zonemd, that domain-insecure zones work without dnssec.
- Fix for zonemd, do not reject insecure result from trust anchor
validation step in dnssec chain of trust.

22 February 2021: Wouter
- Fix #431: Squelch permission denied errors for tcp connect
and udp connect from the logs, unless at high verbosity.
- Fix for zonemd, that nxdomain for the chain of trust is allowed
for island zones, it is treated as an insecure zone for verification.

18 February 2021: Wouter
- Merge PR #317: ZONEMD Zone Verification, with RFC 8976 support.
ZONEMD records are checked for zones loaded as auth-zone,
with DNSSEC if available. There is an added option
zonemd-permissive-mode that makes it log but not fail wrong zones.
With zonemd-reject-absence for an auth-zone the presence of a
zonemd can be mandated for specific zones.
- Fix doxygen and pydoc warnings.
- Fix #429: rpz: url: with https: broken (regression in 1.13.1).
- rpz skip nsec3param records, and nicer log for unsupported actions.

15 February 2021: Wouter
- Fix #422: IPv6 fallback issues when IPv6 is not properly
enabled/configured.
- Fix to make tests work with support indicators set for iterator.
- Fix build on Python 3.10.

10 February 2021: Wouter
- Merge PR #420 from dyunwei: DOH not responsing with
"http2_query_read_done failure" logged.

9 February 2021: Wouter
- Fix for Python 3.9, no longer use deprecated functions of
PyEval_CallObject (now PyObject_Call), PyEval_InitThreads (now
none), PyParser_SimpleParseFile (now Py_CompileString).

Import unbound 1.13.1

4 February 2021: Wouter
- release 1.13.1rc2 tag on branch-1.13.1 with added changes of 2 feb.
This became 1.13.1 release tag on 9 feb. The main branch is set
to version 1.13.2.

2 February 2021: Wouter
- branch-1.13.1 is created, with release-1.13.1rc1 tag.
- Fix dynlibmod link on rhel8 for -ldl inclusion.
- Fix windows dependency on libssp.dll because of default stack
protector in mingw.
- Fix indentation of root anchor for use by windows install script.

1 February 2021: George
- Attempt to fix NULL keys in the reuse_tcp tree; relates to #411.

29 January 2021: Wouter
- Fix for doxygen 1.8.20 compatibility.

28 January 2021: Wouter
- Annotate that we ignore the return value of if_indextoname.
- Fix to use correct type for label count in rpz routine.
- Fix empty clause warning in config_file nsid parse.
- Fix to use correct type for label count in ipdnametoaddr rpz routine.
- Fix empty clause warning in edns pass for padding.
- Fix fwd ancil test post script when not supported.

26 January 2021: George
- Merge PR #408 from fobser: Prevent a few more yacc clashes.
- Merge PR #275 from Roland van Rijswijk-Deij: Add feature to return the
original instead of a decrementing TTL ('serve-original-ttl')
- Merge PR #355 from noloader: Make ICANN Update CA and DS Trust Anchor
static data.
- Ignore cache blacklisting when trying to reply with expired data from
cache (#394).

26 January 2021: Wouter
- Fix compile of unbound-dnstap-socket without dnstap installed.

22 January 2021: Willem
- Padding of queries and responses with DNS over TLS as specified in
RFC7830 and RFC8467.

22 January 2021: George
- Fix TTL of SOA record for negative answers (localzone and
authzone data) to be the minimum of the SOA TTL and the SOA.MINIMUM.

19 January 2021: Willem
- Support for RFC5001: DNS Name Server Identifier (NSID) Option
with the nsid: option in unbound.conf

18 January 2021: Wouter
- Fix #404: DNS query with small edns bufsize fail.
- Fix declaration before statement and signed comparison warning in
dns64.

15 January 2021: Wouter
- Merge #402 from fobser: Implement IPv4-Embedded addresses according
to RFC6052.

14 January 2021: Wouter
- Fix for #93: dynlibmodule import library is named libunbound.dll.a.

13 January 2021: Wouter
- Merge #399 from xiangbao227: The lock of lruhash table should
unlocked after markdel entry.
- Fix for #93: dynlibmodule link fix for Windows.

12 January 2021: Wouter
- Fix #397: [Feature request] add new type always_null to local-zone
similar to always_nxdomain.
- Fix so local zone types always_nodata and always_deny can be used
from the config file.

8 January 2021: Wouter
- Merge PR #391 from fhriley: Add start_time to reply callbacks so
modules can compute the response time.
- For #391: use struct timeval* start_time for callback information.
- For #391: fix indentation.
- For #391: more double casts in python start time calculation.
- Add comment documentation.
- Fix clang analysis warning.

6 January 2021: Wouter
- Fix #379: zone loading over HTTP appears to have buffer issues.
- Merge PR #395 from mptre: add missing null check.
- Fix #387: client-subnet-always-forward seems to effectively bypass
any caching?

5 January 2021: Wouter
- Fix #385: autoconf 2.70 impacts unbound build
- Merge PR #375 by fhriley: Add rpz_enable and rpz_disable commands
to unbound-control.

4 January 2021: Wouter
- For #376: Fix that comm point event is not double removed or double
added to event map.
- iana portlist updated.

16 December 2020: George
- Fix error cases when udp-connect is set and send() returns an error
(modified patch from Xin Li @delphij).

11 December 2020: Wouter
- Fix #371: unbound-control timeout when Unbound is not running.
- Fix to squelch permission denied and other errors from remote host,
they are logged at higher verbosity but not on low verbosity.
- Merge PR #335 from fobser: Sprinkle in some static to prevent
missing prototype warnings.
- Merge PR #373 from fobser: Warning: arithmetic on a pointer to void
is a GNU extension.
- Fix missing prototypes in the code.

3 December 2020: Wouter
- make depend.
- iana portlist updated.

2 December 2020: Wouter
- Fix #360: for the additionally reported TCP Fast Open makes TCP
connections fail, in that case we print a hint that this is
happening with the error in the logs.
- Fix #356: deadlock when listening tcp.
- Fix unbound-dnstap-socket to not use log routine from interrupt
handler and not print so frequently when invoked in sequence.
- Fix on windows to ignore connection failure on UDP, unless verbose.
- Fix for #283: fix stream reuse and tcp fast open.
- Fix update, with write event check with streamreuse and fastopen.

1 December 2020: Wouter
- Fix #358: Squelch udp connect 'no route to host' errors on low
verbosity.

30 November 2020: Wouter
- Fix assertion failure on double callback when iterator loses
interest in query at head of line that then has the tcp stream
not kept for reuse.
- tag for the 1.13.0rc4 release. This also became the 1.13.0
release version on 3 dec 2020 with the streamreuse and fastopen
fix from 2 dec 2020. The code repo continues for 1.13.1 in
development.

27 November 2020: Wouter
- Fix compile warning for type cast in http2_submit_dns_response.
- Fix when use free buffer to initialize rbtree for stream reuse.
- Fix compile warnings for windows.
- Fix compile warnings in rpz initialization.
- Fix contrib/metrics.awk for FreeBSD awk compatibility.
- tag for the 1.13.0rc3 release.

26 November 2020: Wouter
- Fix to omit UDP receive errors from log, if verbosity low.
These happen because of udp-connect.
- For #352: contrib/metrics.awk for Prometheus style metrics output.
- Fix that after failed read, the readagain cannot activate.
- Clear readagain upon decommission of pending tcp structure.

25 November 2020: Wouter
- with udp-connect ignore connection refused with UDP timeouts.
- Fix udp-connect on FreeBSD, do send calls on connected UDP socket.
- Better fix for reuse tree comparison for is-tls sockets. Where
the tree key identity is preserved after cleanup of the TLS state.
- Remove debug commands from reuse tests.
- Fix memory leak for edns client tag opcode config element.
- Attempt fix for libevent state in tcp reuse cases after a packet
is written.
- Fix readagain and writeagain callback functions for comm point
cleanup.
- tag for the 1.13.0rc2 release.

24 November 2020: Wouter
- Merge PR #283 : Stream reuse. This implements upstream stream
reuse for performing several queries over the same TCP or TLS
channel.
- set version of main branch to 1.13.0 for upcoming release.
- iana portlist updated.
- Fix one port unit test for udp-connect.
- tag for the 1.13.0rc1 release.
- Fix crash when TLS connection is closed prematurely, when
reuse tree comparison is not properly identical to insertion.
- Fix padding of struct regional for 32bit systems.

23 November 2020: George
- Merge PR #313 from Ralph Dolmans: Replace edns-client-tag with
edns-client-string option.

23 November 2020: Wouter
- Merge #351 from dvzrv: Add AF_NETLINK to set of allowed socket
address families.
- Fix #350: with the AF_NETLINK permission, to fix 1.12.0 error:
failed to list interfaces: getifaddrs: Address family not
supported by protocol.
- Fix #347: IP_DONTFRAG broken on Apple xcode 12.2.
- Option to toggle udp-connect, default is enabled.
- Fix for #303 CVE-2020-28935 : Fix that symlink does not interfere
with chown of pidfile.
- Further fix for it and retvalue 0 fix for it.

12 November 2020: Wouter
- Fix to connect() to UDP destinations, default turned on,
this lowers vulnerability to ICMP side channels.
- Retry for interfaces with unused ports if possible.

10 November 2020: Wouter
- Fix #341: fixing a possible memory leak.
- Fix memory leak after fix for possible memory leak failure.
- Fix #343: Fail to build --with-libnghttp2 with error: 'SSIZE_MAX'
undeclared.

27 October 2020: Wouter
- In man page note that tls-cert-bundle is read before permission
drop and chroot.

22 October 2020: Wouter
- Fix #333: Unbound Segmentation Fault w/ log_info Functions From
Python Mod.
- Fix that minimal-responses does not remove addresses from a priming
query response.

21 October 2020: George
- Fix #327: net/if.h check fails on some darwin versions; contribution by
Joshua Root.
- Fix #320: potential memory corruption due to size miscomputation upton
custom region alloc init.

21 October 2020: Wouter
- Merge PR #228 : infra-keep-probing option to probe hosts that are
down. Add infra-keep-probing: yes option. Hosts that are down are
probed more frequently.
With the option turned on, it probes about every 120 seconds,
eventually after exponential backoff, and that keeps that way. If
traffic keeps up for the domain. It probes with one at a time, eg.
one query is allowed to probe, other queries within that 120 second
interval are turned away.

19 October 2020: George
- Merge PR #324 from James Renken: Add modern X.509v3 extensions to
unbound-control TLS certificates.
- Fix for PR #324 to attach the x509v3 extensions to the client
certificate.

19 October 2020: Ralph
- local-zone regional allocations outside of chunk

19 October 2020: Wouter
- Fix that http settings have colon in set_option, for
http-endpoint, http-max-streams, http-query-buffer-size,
http-response-buffer-size, and http-nodelay.
- Fix memory leak of https port string when reading config.
- Fix #330: [Feature request] Add unencrypted DNS over HTTPS support.
This adds the option http-notls-downstream: yesno to change that,
and the dohclient test code has the -n option.
- Fix python documentation warning on functions.rst inplace_cb_reply.
- Fix dnstap test to wait for log timer to see if queries are logged.
- Log ip address when http session recv fails, eg. due to tls fail.
- Fix to set the tcp handler event toggle flag back to default when
the handler structure is reused.
- Clean the fix for out of order TCP processing limits on number
of queries. It was tested to work.

16 October 2020: Wouter
- Fix that the out of order TCP processing does not limit the
number of outstanding queries over a connection.

15 October 2020: George
- Fix that if there are reply callbacks for the given rcode, those
are called per reply and a new message created if that was modified
by the call.
- Pass the comm_reply information to the inplace_cb_reply* functions
during the mesh state and update the documentation on that.

15 October 2020: Wouter
- Merge PR #326 from netblue30: DoH: implement content-length
header field
- DoH content length, simplify code, remove declaration after
statement and fix cast warning.

14 October 2020: Wouter
- Fix for python reply callback to see mesh state reply_list member,
it only removes it briefly for the commpoint call so that it does
not drop it and attempt to modify the reply list during reply.
- Fix that if there are on reply callbacks, those are called per
reply and a new message created if that was modified by the call.
- Free up auth zone parse region after use for lookup of host

13 October 2020: Wouter
- Fix #323: unbound testsuite fails on mock build in systemd-nspawn
if systemd support is build.

9 October 2020: Wouter
- Fix dnstap socket and the chroot not applied properly to the dnstap
socket path.
- Fix warning in libnss compile, nss_buf2dsa is not used without DSA.

8 October 2020: Wouter
- Tag for 1.12.0 release.
- Current repo is version 1.12.1 in development.
- Fix #319: potential memory leak on config failure, in rpz config.

1 October 2020: Wouter
- Current repo is version 1.12.0 for release. Tag for 1.12.0rc1.

30 September 2020: Wouter
- Fix doh tests when not compiled in.
- Add dohclient test executable to gitignore.
- Fix stream_ssl, ssl_req_order and ssl_req_timeout tests for
alloc check debug output.
- Easier kill of unbound-dnstap-socket tool in test.
- Fix memory leak of edns tags at libunbound context delete.
- Fix double loopexit for unbound-dnstap-socket after sigterm.

29 September 2020: Ralph
- DNS Flag Day 2020: change edns-buffer-size default to 1232.

28 September 2020: Wouter
- Fix unit test for dnstap changes, so that it waits for the timer.

23 September 2020: Wouter
- Fix #305: dnstap logging significantly affects unbound performance
(regression in 1.11).
- Fix #305: only wake up thread when threshold reached.
- Fix to ifdef fptr wlist item for dnstap.

23 September 2020: Ralph
- Fix edns-client-tags get_option typo
- Add edns-client-tag-opcode option
- Use inclusive language in configuration

21 September 2020: Ralph
- Fix #304: dnstap logging not recovering after dnstap process restarts

21 September 2020: Wouter
- Merge PR #311 by luismerino: Dynlibmod leak.
- Error message is logged for dynlibmod malloc failures.
- iana portlist updated.

18 September 2020: Wouter
- Fix that prefer-ip4 and prefer-ip6 can be get and set with
unbound-control, with libunbound and the unbound-checkconf option
output function.
- iana portlist updated.

15 September 2020: George
- Introduce test for statistics.

15 September 2020: Wouter
- Spelling fix.

11 September 2020: Wouter
- Remove x file mode on ipset/ipset.c and h files.

9 September 2020: Wouter
- Fix num.expired statistics output.

31 August 2020: Wouter
- Merge PR #293: Add missing prototype. Also refactor to use the new
shorthand function to clean up the code.
- Refactor to use sock_strerr shorthand function.
- Fix #296: systemd nss-lookup.target is reached before unbound can
successfully answer queries. Changed contrib/unbound.service.in.

27 August 2020: Wouter
- Similar to NSD PR#113, implement that interface names can be used,
eg. something like interface: eth0 is resolved at server start and
uses the IP addresses for that named interface.
- Review fix, doxygen and assign null in case of error free.

26 August 2020: George
- Update documentation in python example code.

24 August 2020: Wouter
- Fix that dnstap reconnects do not spam the log with the repeated
attempts. Attempts on the timer are only logged on high verbosity,
if they produce a connection failure error.
- Fix to apply chroot to dnstap-socket-path, if chroot is enabled.
- Change configure to use EVP_sha256 instead of HMAC_Update for
openssl-3.0.0.

20 August 2020: Ralph
- Fix stats double count issue (#289).

13 August 2020: Ralph
- Create and init edns tags data for libunbound.

10 August 2020: Ralph
- Merge (modified) PR #277, use EVP_MAC_CTX_set_params if available,
by V�t#zslav #�#ek.

10 August 2020: Wouter
- Fix #287: doc typo: "Additionaly".
- Rerun autoconf

6 August 2020: Wouter
- Merge PR #284 and Fix #246: Remove DLV entirely from Unbound.
The DLV has been decommisioned and in unbound 1.5.4, in 2015, there
was advise to stop using it. The current code base does not contain
DLV code any more. The use of dlv options displays a warning.

5 August 2020: Wouter
- contrib/aaaa-filter-iterator.patch file renewed diff content to
apply cleanly to the current coderepo for the current code version.

5 August 2020: Ralph
- Merge PR #272: Add EDNS client tag functionality.

4 August 2020: George
- Improve error log message when inserting rpz RR.
- Merge PR #280, Make tvOS & watchOS checks verify truthiness as well as
definedness, by Felipe Gasper.

4 August 2020: Wouter
- Fix mini_event.h on OpenBSD cannot find fd_set.

31 July 2020: Wouter
- Fix doxygen comment for no ssl for tls session ticket key callback
routine.

27 July 2020: George
- Merge PR #268, draft-ietf-dnsop-serve-stale-10 has become RFC 8767 on
March 2020, by and0x000.

27 July 2020: Ralph
- Merge PR #269, Fix python module len() implementations, by Torbj�rn
L�nnemark

27 July 2020: Wouter
- branch now named 1.11.1. 1.11.0rc1 became the 1.11.0 release.
- Merge PR #270 from cgzones: munin plugin: always exit 0 in autoconf

20 July 2020: Wouter
- Fix streamtcp to print packet data to stdout. This makes the
stdout and stderr not mix together lines, when parsing its output.
- Fix contrib/fastrpz.patch to apply cleanly. It fixes for changes
due to added libdynmod, but it does not compile, it conflicts with
new rpz code.
- branch now named 1.11.0 and 1.11.0rc1 tag.

17 July 2020: Wouter
- Fix libnettle compile for session ticket key callback function
changes.
- Fix lock dependency cycle in rpz zone config setup.

17 July 2020: Ralph
- Merge PR #234 - Ensure proper alignment of cmsg buffers by J�r�mie
Courr�ges-Anglas.
- Fix PR #234 log_assert sizeof to use union buffer.

16 July 2020: Wouter
- Fix check conf test for referencing installation paths.
- Fix unused variable warning for clang analyzer.

16 July 2020: George
- Introduce 'include-toplevel:' configuration option.

16 July 2020: Ralph
- Add bidirectional frame streams support.

8 July 2020: Wouter
- Fix add missing DSA header, for compilation without deprecated
OpenSSL APIs.
- Fix to use SSL_CTX_set_tlsext_ticket_key_evp_cb in OpenSSL
3.0.0-alpha4.
- Longer keys for the test set, this avoids weak crypto errors.

7 July 2020: Wouter
- Fix #259: Fix unbound-checkconf does not check view existence.
unbound-checkconf checks access-control-view, access-control-tags,
access-control-tag-actions and access-control-tag-datas.
- Fix offset of error printout for access-control-tag-datas.
- Review fixes for checkconf #259 change.

6 July 2020: Wouter
- run_vm cleanup better and removes trailing slash on single argument.

29 June 2020: Wouter
- Move reply list clean for serve expired mesh callback to after
the reply is sent, so that script callbacks have reply_info.
- Also move reply list clean for mesh callbacks to the scrip callback
can see the reply_info.
- Fix for mesh accounting if the reply list already empty to begin
with.
- Fix for mesh accounting when rpz decides to drop a reply with a
tcp stream waiting for it.
- Review fix for number of detached states due to use of variable
after end of loop.
- Fix tcp req info drop due to size call into mesh accounting
removal of mesh state during mesh send reply.

24 June 2020: Wouter
- iana portlist updated.
- doxygen file comments for dynlibmodule.

17 June 2020: Wouter
- Fix default explanation in man page for qname-minimisation-strict.
- Fix display of event loop method with libev.

8 June 2020: Wouter
- Mention tls name possible when tls is enabled for stub-addr in the
man page.

27 May 2020: George
- Merge PR #241 by Robert Edmonds: contrib/libunbound.pc.in: Do not use
"Requires:".

25 May 2020: George
- Update contrib/aaaa-filter-iterator.patch for the recent
generate_sub_request() change and to apply cleanly.

21 May 2020: George
- Fix for integer overflow when printing RDF_TYPE_TIME.

19 May 2020: Wouter
- CVE-2020-12662 Unbound can be tricked into amplifying an incoming
query into a large number of queries directed to a target.
- CVE-2020-12663 Malformed answers from upstream name servers can be
used to make Unbound unresponsive.
- Release 1.10.1 is 1.10.0 with fixes, code repository continues,
including those fixes, towards the next release. Configure has
version 1.10.2 version number in it.
- For PR #93: windows compile warnings removal
- windows compile warnings removal for ip dscp option code.
- For PR #93: unit test for dynlib module.

18 May 2020: Wouter
- For PR #93: dynlibmod can handle reloads and deinit and inits again,
with dlclose and dlopen of the library again. Also for multiple
modules. Fix memory leak by not closing dlopened content. Fix
to allow one dynlibmod instance by unbound-checkconf.
- For PR #93: checkconf allows multiple dynlib in module-config, for
a couple cases.
- For PR #93: checkconf allows python dynlib in module-config, for
a couple cases.
- For PR #93: man page spelling reference fix.
- For PR #93: fix link of other executables for dynlibmod dependency.

15 May 2020: Wouter
- Merge PR #93: Add dynamic library support.
- Fixed conflicts for PR #93 and make configure, yacc, lex.
- For PR #93: Fix warnings for dynlibmodule.

15 May 2020: Ralph
- Cache ECS answers with longest scope of CNAME chain.

22 April 2020: George
- Explicitly use 'rrset-roundrobin: no' for test cases.

21 April 2020: Wouter
- Merge #225 from akhait: KSK-2010 has been revoked. It removes the
KSK-2010 from the default list in unbound-anchor, now that the
revocation period is over. KSK-2017 is the only trust anchor in
the shipped default now.

21 April 2020: George
- Change default value for 'rrset-roundrobin' to yes.
- Fix tests for new rrset-roundrobin default.

20 April 2020: Wouter
- Fix #222: --enable-rpath, fails to rpath python lib.
- Fix for count of reply states in the mesh.
- Remove unneeded was_mesh_reply check.

17 April 2020: George
- Add SNI support on more TLS connections (fixes #193).
- Add SNI support to unbound-anchor.

16 April 2020: George
- Add doxygen documentation for DSCP.

16 April 2020: Wouter
- Fix help return code in unbound-control-setup script.
- Fix for posix shell syntax for trap in nsd-control-setup.
- Fix for posix shell syntax for trap in run_msg.sh test script.

15 April 2020: George
- Fix #220: auth-zone section in config may lead to segfault.

7 April 2020: Wouter
- Merge PR #214 from gearnode: unbound-control-setup recreate
certificates. With the -r option the certificates are created
again, without it, only the files that do not exist are created.

6 April 2020: Ralph
- Keep track of number of timeouts. Use this counter to determine if
capsforid fallback should be started.

6 April 2020: George
- More documentation for redis-expire-records option.

1 April 2020: George
- Merge PR #206: Redis TTL, by Talkabout.

30 March 2020: Wouter
- Merge PR #207: Clarify if-automatic listens on 0.0.0.0 and ::
- Merge PR #208: Fix uncached CLIENT_RESPONSE'es on stateful
transports.

27 March 2020: Wouter
- Merge PR #203 from noloader: Update README-Travis.md with current
procedures.

27 March 2020: Ralph
- Make unbound-control error returned on missing domain name more user
friendly.

26 March 2020: Ralph
- Fix RPZ concurrency issue when using auth_zone_reload.

25 March 2020: George
- Merge PR #201 from noloader: Fix OpenSSL cross-compaile warnings.
- Fix on #201.

24 March 2020: Wouter
- Merge PR #200 from yarikk: add ip-dscp option to specify the DSCP
tag for outgoing packets.
- Fixes on #200.
- Travis fix for ios by omitting tools from install.

23 March 2020: Wouter
- Fix compile on Solaris for unbound-checkconf.

20 March 2020: George
- Merge PR #198 from fobser: Declare lz_enter_rr_into_zone() static, it's
only used in this file.

20 March 2020: Wouter
- Merge PR #197 from fobser: Make log_ident_revert_to_default() a
proper prototype.

19 March 2020: Ralph
- Merge PR#191: Update iOS testing on Travis, by Jeffrey Walton.
- Fix #158: open tls-session-ticket-keys as binary, for Windows. By
Daisuke HIGASHI.
- Merge PR#134, Allow the kernel to provide random source ports. By
Florian Obser.
- Log warning when using outgoing-port-permit and outgoing-port-avoid
while explicit port randomisation is disabled.
- Merge PR#194: Add libevent testing to Travis, by Jeffrey Walton.
- Fix .travis.yml error, missing 'env' option.

16 March 2020: Wouter
- Fix #192: In the unbound-checkconf tool, the module config of
dns64 subnetcache respip validator iterator is whitelisted, it was
reported it seems to work.

12 March 2020: Wouter
- Fix compile of test tools without protobuf.

11 March 2020: Ralph
- Add check to make sure RPZ records are subdomains of configured
zone origin.

11 March 2020: George
- Fix #189: mini_event.h:142:17: error: field 'ev_timeout' has incomplete
type, by noloader.
- Changelog entry for (Fix #189, Merge PR #190).

11 March 2020: Wouter
- Fix #188: unbound-control.c:882:6: error: 'execlp' is
unavailable: not available on tvOS.

6 March 2020: George
- Merge PR #186, fix #183: Fix unrecognized 'echo -n' option on OS X, by
noloader

5 March 2020: Wouter
- Fix PR #182 from noloader: Add iOS testing to Travis.

4 March 2020: Ralph
- Update README-Travis.md (from PR #179), by Jeffrey Walton.

4 March 2020: George
- Merge PR #181 from noloader: Fix OpenSSL -pie warning on Android.

4 March 2020: Wouter
- Merge PR #180 from noloader: Avoid calling exit in Travis script.

3 March 2020: George
- Upgrade config.guess(2020-01-01) and config.sub(2020-01-01).

2 March 2020: Ralph
- Fix #175, Merge PR #176: fix link error when OpenSSL is configured
with no-engine, thanks noloader.

2 March 2020: George
- Fix compiler warning in dns64/dns64.c
- Merge PR #174: Add Android to Travis testing, by noloader.
- Move android build scripts to contrib/ and allow android tests to fail.

2 March 2020: Wouter
- Fix #177: dnstap does not build on macOS.

28 February 2020: Ralph
- Merge PR #172: Add IBM s390x arch for testing, by noloader.

28 February 2020: Wouter
- Merge PR #173: updated makedist.sh for config.guess and
config.sub and sha256 digest for gpg, by noloader.
- Merge PR #164: Framestreams, this branch implements dnstap
unidirectional connectivity in unbound. This has a number of
new features.

The dependency on libfstrm is removed. The fstrm protocol code
resides in dnstap/dnstap_fstrm.h and dnstap/dnstap_fstrm.c. This
contains a brief definition of what unbound needs.

The make unbound-dnstap-socket builds a debug tool,
unbound-dnstap-socket. It can listen, accept multiple DNSTAP
streams and print information. Commandline options control it.

Unbound can reconnect if the unix domain socket file socket is
closed. This uses exponential backoff after which it uses a
one second timer to throttle cpu down. There is also support
to use TCP and TLS for connecting to the log server. There
are new config options to turn them on, in the dnstap section
in the man page and example config file. dnstap-ip with IP
address of server for TCP or TLS use. dnstap-tls to turn
on TLS. And dnstap-tls-server-name, dnstap-tls-cert-bundle,
dnstap-tls-client-key-file and dnstap-tls-client-cert-file
to configure the certificates for server authentication and
client authentication, or leave at "" to not use that.

27 February 2020: George
- Merge PR #171: Add additional compilers and platforms to Travis
testing, by noloader.

27 February 2020: Wouter
- Fix #169: Fix warning for daemon/remote.c output may be truncated
from snprintf.
- Fix #170: Fix gcc undefined sanitizer signed integer overflow
warning in signature expiry RFC1982 serial number arithmetic.
- Fix more undefined sanitizer issues, in respip copy_rrset null
dname, and in the client_info_compare routine for null memcmp.

26 February 2020: Wouter
- iana portlist updated.

25 February 2020: Wouter
- Fix #165: Add prefer-ip4: yesno config option to prefer ipv4 for
using ipv4 filters, because the hosts ip6 netblock /64 is not owned
by one operator, and thus reputation is shared.

24 February 2020: George
- Merge PR #166: Fix typo in unbound.service.in, by glitsj16.

20 February 2020: Wouter
- Updated contrib/unbound_smf23.tar.gz with Solaris SMF service for
Unbound from Yuri Voinov.
- master branch has 1.10.1 version.

18 February 2020: Wouter
- protect X509_CHECK_FLAG_NO_PARTIAL_WILDCARDS with ifdef for
different openssl versions.

17 February 2020: Wouter
- changelog point where the tag for 1.10.0rc2 release is. And with
the unbound_smf23 commit added to it, that is the 1.10.0 release.

17 February 2020: Ralph
- Add respip to supported module-config options in unbound-checkconf.

17 February 2020: George
- Remove unused variable.

17 February 2020: Wouter
- contrib/drop2rpz: perl script that converts the Spamhaus DROP-List
in RPZ-Format, contributed by Andreas Schulze.

14 February 2020: Wouter
- Fix spelling in unbound.conf.5.in.
- Stop unbound-checkconf from insisting that auth-zone and rpz
zonefiles have to exist. They can not exist, and download later.

13 February 2020: Wouter
- tag for 1.10.0rc1 release.

12 February 2020: Wouter
- Fix with libnettle make test with dsa disabled.
- Fix contrib/fastrpz.patch to apply cleanly. Fix for serve-stale
fixes, but it does not compile, conflicts with new rpz code.
- Fix to clean memory leak of respip_addr.lock when ip_tree deleted.
- Fix compile warning when threads disabled.
- updated version number to 1.10.0.

10 February 2020: George
- Document 'ub_result.was_ratelimited' in libunbound.
- Fix use after free on log-identity after a reload; Fixes #163.

6 February 2020: George
- Fix num_reply_states and num_detached_states counting with
serve_expired_callback.
- Cleaner code in mesh_serve_expired_lookup.
- Document in unbound.conf manpage that configuration clauses can be
repeated in the configuration file.

6 February 2020: Wouter
- Fix num_reply_addr counting in mesh and tcp drop due to size
after serve_stale commit.
- Fix to create and destroy rpz_lock in auth_zones structure.
- Fix to lock zone before adding rpz qname trigger.
- Fix to lock and release once in mesh_serve_expired_lookup.
- Fix to put braces around empty if body when threading is disabled.

5 February 2020: George
- Added serve-stale functionality as described in
draft-ietf-dnsop-serve-stale-10. `serve-expired-*` options can be used
to configure the behavior.
- Updated cachedb to honor `serve-expired-ttl`; Fixes #107.
- Renamed statistic `num.zero_ttl` to `num.expired` as expired replies
come with a configurable TTL value (`serve-expired-reply-ttl`).
- Fixed stats when replying with cached, cname-aliased records.
- Added missing default values for redis cachedb backend.

3 February 2020: Ralph
- Add assertion to please static analyzer

31 January 2020: Wouter
- Fix fclose on error in TLS session ticket code.

30 January 2020: Ralph
- Fix memory leak in error condition remote.c
- Fix double free in error condition view.c
- Fix memory leak in do_auth_zone_transfer on success
- Merge RPZ support into master. Only QNAME and Response IP triggers are
supported.
- Stop working on socket when socket() call returns an error.
- Check malloc return values in TLS session ticket code

30 January 2020: Wouter
- Fix subnet tests for disabled DSA algorithm by default.
- Update contrib/fastrpz.patch for clean diff with current code.
- Merge PR#151: Fixes for systemd units, by Maryse47, Edmonds
and Frzk. Updates the unbound.service systemd file and adds
a portable systemd service file.
- updated .gitignore for added contrib file.
- Add build rule for ipset to Makefile
- Add getentropy_freebsd.o to Makefile dependencies.

29 January 2020: Ralph
- Merge PR#156 from Alexander Berkes; Added unbound-control
view_local_datas_remove command.

29 January 2020: Wouter
- Fix #157: undefined reference to `htobe64'.

28 January 2020: Ralph
- Merge PR#147; change rfc reference for reserved top level dns names.

28 January 2020: Wouter
- iana portlist updated.
- Fix to silence the tls handshake errors for broken pipe and reset
by peer, unless verbosity is set to 2 or higher.

27 January 2020: Ralph
- Merge PR#154; Allow use of libbsd functions with configure option
--with-libbsd. By Robert Edmonds and Steven Chamberlain.
- Merge PR#148; Add some TLS stats to unbound_munin_. By Fredrik Pettai.

27 January 2020: Wouter
- Merge PR#155 from Robert Edmonds: contrib/libunbound.pc.in: Fixes
to Libs/Requires for crypto library dependencies.
- Fix #153: Disable validation for DSA algorithms. RFC 8624
compliance.

23 January 2020: Wouter
- Merge PR#150 from Frzk: Systemd unit without chroot. It add
contrib/unbound_nochroot.service.in, a systemd file for use with
chroot: "", see comments in the file, it uses systemd protections
instead.

14 January 2020: Wouter
- Removed the dnscrypt_queries and dnscrypt_queries_chacha tests,
because dnscrypt-proxy (2.0.36) does not support the test setup
any more, and also the config file format does not seem to have
the appropriate keys to recreate that setup.
- Fix crash after reload where a stats lookup could reference old key
cache and neg cache structures.
- Fix for memory leak when edns subnet config options are read when
compiled without edns subnet support.
- Fix auth zone support for NSEC3 records without salt.

10 January 2020: Wouter
- Fix the relationship between serve-expired and prefetch options,
patch from Saksham Manchanda from Secure64.
- Fix unreachable code in ssl set options code.

8 January 2020: Ralph
- Fix #138: stop binding pidfile inside chroot dir in systemd service
file.

8 January 2020: Wouter
- Fix 'make test' to work for --disable-sha1 configure option.
- Fix out-of-bounds null-byte write in sldns_bget_token_par while
parsing type WKS, reported by Luis Merino from X41 D-Sec.
- Updated sldns_bget_token_par fix for also space for the zero
delimiter after the character. And update for more spare space.

6 January 2020: George
- Downgrade compat/getentropy_solaris.c to version 1.4 from OpenBSD.
The dl_iterate_phdr() function introduced in newer versions raises
compilation errors on solaris 10.
- Changes to compat/getentropy_solaris.c for,
ifdef stdint.h inclusion for older systems.
ifdef sha2.h inclusion for older systems.

6 January 2020: Wouter
- Merge #135 from Florian Obser: Use passed in neg and key cache
if non-NULL.
- Fix #140: Document slave not downloading new zonefile upon update.

16 December 2019: George
- Update mailing list URL.

12 December 2019: Ralph
- Master is 1.9.7 in development.
- Fix typo to let serve-expired-ttl work with ub_ctx_set_option(), by
Florian Obser

10 December 2019: Wouter
- Fix to make auth zone IXFR to fallback to AXFR if a single
response RR is received over TCP with the SOA in it.

Import unbound 1.9.6:

6 December 2019: Wouter
- Fix ipsecmod compile.
- Fix Makefile.in for ipset module compile, from Adi Prasaja.

5 December 2019: Wouter
- unbound-fuzzers.tar.bz2: three programs for fuzzing, that are 1:1
replacements for unbound-fuzzme.c that gets created after applying
the contrib/unbound-fuzzme.patch. They are contributed by
Eric Sesterhenn from X41 D-Sec.
- tag for 1.9.6rc1.

4 December 2019: Wouter
- Fix lock type for memory purify log lock deletion.
- Fix testbound for alloccheck runs, memory purify and lock checks.
- update contrib/fastrpz.patch to apply more cleanly.
- Fix Make Test Fails when Configured With --enable-alloc-nonregional,
reported by X41 D-Sec.

3 December 2019: Wouter
- Merge pull request #124 from rmetrich: Changed log lock
from 'quick' to 'basic' because this is an I/O lock.
- Fix text around serial arithmatic used for RRSIG times to refer
to correct RFC number.
- Fix Assert Causing DoS in synth_cname(),
reported by X41 D-Sec.
- Fix similar code in auth_zone synth cname to add the extra checks.
- Fix Assert Causing DoS in dname_pkt_copy(),
reported by X41 D-Sec.
- Fix OOB Read in sldns_wire2str_dname_scan(),
reported by X41 D-Sec.
- Fix Out of Bounds Write in sldns_str2wire_str_buf(),
reported by X41 D-Sec.
- Fix Out of Bounds Write in sldns_b64_pton(),
fixed by check in sldns_str2wire_int16_data_buf(),
reported by X41 D-Sec.
- Fix Insufficient Handling of Compressed Names in dname_pkt_copy(),
reported by X41 D-Sec.
- Fix Out of Bound Write Compressed Names in rdata_copy(),
reported by X41 D-Sec.
- Fix Hang in sldns_wire2str_pkt_scan(),
reported by X41 D-Sec.
This further lowers the max to 256.
- Fix snprintf() supports the n-specifier,
reported by X41 D-Sec.
- Fix Bad Indentation, in dnscrypt.c,
reported by X41 D-Sec.
- Fix Client NONCE Generation used for Server NONCE,
reported by X41 D-Sec.
- Fix compile error in dnscrypt.
- Fix _vfixed not Used, removed from sbuffer code,
reported by X41 D-Sec.
- Fix Hardcoded Constant, reported by X41 D-Sec.
- make depend

2 December 2019: Wouter
- Merge pull request #122 from he32: In tcp_callback_writer(),
don't disable time-out when changing to read.

22 November 2019: George
- Fix compiler warnings.

22 November 2019: Wouter
- Fix dname loop maximum, reported by Eric Sesterhenn from X41 D-Sec.
- Add make distclean that removes everything configure produced,
and make maintainer-clean that removes bison and flex output.

20 November 2019: Wouter
- Fix Out of Bounds Read in rrinternal_get_owner(),
reported by X41 D-Sec.
- Fix Race Condition in autr_tp_create(),
reported by X41 D-Sec.
- Fix Shared Memory World Writeable,
reported by X41 D-Sec.
- Adjust unbound-control to make stats_shm a read only operation.
- Fix Weak Entropy Used For Nettle,
reported by X41 D-Sec.
- Fix Randomness Error not Handled Properly,
reported by X41 D-Sec.
- Fix Out-of-Bounds Read in dname_valid(),
reported by X41 D-Sec.
- Fix Config Injection in create_unbound_ad_servers.sh,
reported by X41 D-Sec.
- Fix Local Memory Leak in cachedb_init(),
reported by X41 D-Sec.
- Fix Integer Underflow in Regional Allocator,
reported by X41 D-Sec.
- Upgrade compat/getentropy_linux.c to version 1.46 from OpenBSD.
- Synchronize compat/getentropy_win.c with version 1.5 from
OpenBSD, no changes but makes the file, comments, identical.
- Upgrade compat/getentropy_solaris.c to version 1.13 from OpenBSD.
- Upgrade compat/getentropy_osx.c to version 1.12 from OpenBSD.
- Changes to compat/getentropy files for,
no link to openssl if using nettle, and hence config.h for
HAVE_NETTLE variable.
compat definition of MAP_ANON, for older systems.
ifdef stdint.h inclusion for older systems.
ifdef sha2.h inclusion for older systems.
- Fixed Compat Code Diverging from Upstream, reported by X41 D-Sec.
- Fix compile with --enable-alloc-checks, reported by X41 D-Sec.
- Fix Terminating Quotes not Written, reported by X41 D-Sec.
- Fix Useless memset() in validator, reported by X41 D-Sec.
- Fix Unrequired Checks, reported by X41 D-Sec.
- Fix Enum Name not Used, reported by X41 D-Sec.
- Fix NULL Pointer Dereference via Control Port,
reported by X41 D-Sec.
- Fix Bad Randomness in Seed, reported by X41 D-Sec.
- Fix python examples/calc.py for eval, reported by X41 D-Sec.
- Fix comments for doxygen in dns64.

19 November 2019: Wouter
- Fix CVE-2019-18934, shell execution in ipsecmod.
- 1.9.5 is 1.9.4 with bugfix, trunk is 1.9.6 in development.
- Fix authzone printout buffer length check.
- Fixes to please lint checks.
- Fix Integer Overflow in Regional Allocator,
reported by X41 D-Sec.
- Fix Unchecked NULL Pointer in dns64_inform_super()
and ipsecmod_new(), reported by X41 D-Sec.
- Fix Out-of-bounds Read in rr_comment_dnskey(),
reported by X41 D-Sec.
- Fix Integer Overflows in Size Calculations,
reported by X41 D-Sec.
- Fix Integer Overflow to Buffer Overflow in
sldns_str2wire_dname_buf_origin(), reported by X41 D-Sec.
- Fix Out of Bounds Read in sldns_str2wire_dname(),
reported by X41 D-Sec.
- Fix Out of Bounds Write in sldns_bget_token_par(),
reported by X41 D-Sec.

18 November 2019: Wouter
- In unbound-host use separate variable for get_option to please
code checkers.
- update to bison output of 3.4.1 in code repository.
- Provide a prototype for compat malloc to remove compile warning.
- Portable grep usage for reuseport configure test.
- Check return type of HMAC_Init_ex for openssl 0.9.8.
- gitignore .source tempfile used for compatible make.

13 November 2019: Wouter
- iana portlist updated.
- contrib/fastrpz.patch updated to apply for current code.
- fixes for splint cleanliness, long vs int in SSL set_mode.

11 November 2019: Wouter
- Fix #109: check number of arguments for stdin-pipes in
unbound-control and fail if too many arguments.
- Merge #102 from jrtc27: Add getentropy emulation for FreeBSD.

24 October 2019: Wouter
- Fix #99: Memory leak in ub_ctx (event_base will never be freed).

23 October 2019: George
- Add new configure option `--enable-fully-static` to enable full static
build if requested; in relation to #91.

23 October 2019: Wouter
- Merge #97: manpage: Add missing word on unbound.conf,
from Erethon.

22 October 2019: Wouter
- drop-tld.diff: adds option drop-tld: yesno that drops 2 label
queries, to stop random floods. Apply with
patch -p1 < contrib/drop-tld.diff and compile.
From Saksham Manchanda (Secure64). Please note that we think this
will drop DNSKEY and DS lookups for tlds and hence break DNSSEC
lookups for downstream clients.

7 October 2019: Wouter
- Add doxygen comments to unbound-anchor source address code, in #86.

3 October 2019: Wouter
- Merge #90 from vcunat: fix build with nettle-3.5.
- Merge 1.9.4 release with fix for vulnerability CVE-2019-16866.
- Continue with development of 1.9.5.
- Merge #86 from psquarejho: Added -b source address option to
smallapp/unbound-anchor.c, from Lukas Wunner.

26 September 2019: Wouter
- Merge #87 from hardfalcon: Fix contrib/unbound.service.in,
Drop CAP_KILL, use + prefix for ExecReload= instead.

25 September 2019: Wouter
- The unbound.conf includes are sorted ascending, for include
statements with a '*' from glob.

23 September 2019: Wouter
- Merge #85 for #84 from sam-lunt: Add kill capability to systemd
service file to fix that systemctl reload fails.

20 September 2019: Wouter
- Merge #82 from hardfalcon: Downgrade CAP_NET_ADMIN to CAP_NET_RAW
in unbound.service.
- Merge #81 from Maryse47: Consistently use /dev/urandom instead
of /dev/random in scripts and docs.
- Merge #83 from Maryse47: contrib/unbound.service.in: do not fork
into the background.

19 September 2019: Wouter
- Fix #78: Memory leak in outside_network.c.
- Merge pull request #76 from Maryse47: Improvements and fixes for
systemd unbound.service.
- oss-fuzz badge on README.md.
- Fix fix for #78 to also free service callback struct.
- Fix for oss-fuzz build warning.
- Fix wrong response ttl for prepended short CNAME ttls, this would
create a wrong zero_ttl response count with serve-expired enabled.
- Merge #80 from stasic: Improve wording in man page.

11 September 2019: Wouter
- Use explicit bzero for wiping clear buffer of hash in cachedb,
reported by Eric Sesterhenn from X41 D-Sec.

9 September 2019: Wouter
- Fix #72: configure --with-syslog-facility=LOCAL0-7 with default
LOG_DAEMON (as before) can set the syslog facility that the server
uses to log messages.

4 September 2019: Wouter
- Fix #71: fix openssl error squelch commit compilation error.

3 September 2019: Wouter
- squelch DNS over TLS errors 'ssl handshake failed crypto error'
on low verbosity, they show on verbosity 3 (query details), because
there is a high volume and the operator cannot do anything for the
remote failure. Specifically filters the high volume errors.

2 September 2019: Wouter
- ipset module #28: log that an address is added, when verbosity high.
- ipset: refactor long routine into three smaller ones.
- updated Makefile dependencies.

23 August 2019: Wouter
- Fix contrib/fastrpz.patch asprintf return value checks.

22 August 2019: Wouter
- Fix that pkg-config is setup before --enable-systemd needs it.
- 1.9.3rc2 release candidate tag. And this became the 1.9.3 release.
Master is 1.9.4 in development.

21 August 2019: Wouter
- Fix log_dns_msg to log irrespective of minimal responses config.

19 August 2019: Ralph
- Document limitation of pidfile removal outside of chroot directory.

16 August 2019: Wouter
- Fix unittest valgrind false positive uninitialised value report,
where if gcc 9.1.1 uses -O2 (but not -O1) then valgrind 3.15.0
issues an uninitialised value for the token buffer at the str2wire.c
rrinternal_get_owner() strcmp with the '@' value. Rewritten to use
straight character comparisons removes the false positive. Also
valgrinds --expensive-definedness-checks=yes can stop this false
positive.
- Please doxygen's parser for "@" occurrence in doxygen comment.
- Fixup contrib/fastrpz.patch
- Remove warning about unknown cast-function-type warning pragma.

15 August 2019: Wouter
- iana portlist updated.
- Fix autotrust temp file uniqueness windows compile.
- avoid warning about upcast on 32bit systems for autotrust.
- escape commandline contents for -V.
- Fix character buffer size in ub_ctx_hosts.
- 1.9.3rc1 release candidate tag.
- Option -V prints if TCP fastopen is available.

14 August 2019: George
- Fix #59, when compiled with systemd support check that we can properly
communicate with systemd through the `NOTIFY_SOCKET`.

14 August 2019: Wouter
- Generate configlexer with newer flex.
- Fix warning for unused variable for compilation without systemd.

12 August 2019: George
- Introduce `-V` option to print the version number and build options.
Previously reported build options like linked libs and linked modules
are now moved from `-h` to `-V` as well for consistency.
- PACKAGE_BUGREPORT now also includes link to GitHub issues.

1 August 2019: Wouter
- For #52 #53, second context does not close logfile override.
- Fix #52 #53, fix for example fail program.
- Fix to return after failed auth zone http chunk write.
- Fix to remove unused test for task_probe existance.
- Fix to timeval_add for remaining second in microseconds.
- Check repinfo in worker_handle_request, if null, drop it.

29 July 2019: Wouter
- Add verbose log message when auth zone file is written, at level 4.
- Add hex print of trust anchor pointer to trust anchor file temp
name to make it unique, for libunbound created multiple contexts.

23 July 2019: Wouter
- Fix question section mismatch in local zone redirect.

19 July 2019: Wouter
- Fix #49: Set no renegotiation on the SSL context to stop client
session renegotiation.

12 July 2019: Wouter
- Fix #48: Unbound returns additional records on NODATA response,
if minimal-responses is enabled, also the additional for negative
responses is removed.

9 July 2019: Ralph
- Fix in respip addrtree selection. Absence of addr_tree_init_parents()
call made it impossible to go up the tree when the matching netmask is
too specific.

5 July 2019: Ralph
- Fix for possible assertion failure when answering respip CNAME from
cache.

25 June 2019: Wouter
- For #45, check that 127.0.0.1 and ::1 are not used in unbound.conf
when do-not-query-localhost is turned on, or at default on,
unbound-checkconf prints a warning if it is found in forward-addr or
stub-addr statements.

24 June 2019: Wouter
- Fix memleak in unit test, reported from the clang 8.0 static analyzer.

18 June 2019: Wouter
- PR #28: IPSet module, by Kevin Chou. Created a module to support
the ipset that could add the domain's ip to a list easily.
Needs libmnl, and --enable-ipset and config it, doc/README.ipset.md.
- Fix to omit RRSIGs from addition to the ipset.
- Fix to make unbound-control with ipset, remove unused variable,
use unsigned type because of comparison, and assign null instead
of compare with it. Remade lex and yacc output.
- make depend
- Added documentation to the ipset files (for doxygen output).
- Merge PR #6: Python module: support multiple instances
- Merge PR #5: Python module: define constant MODULE_RESTART_NEXT
- Merge PR #4: Python module: assign something useful to the
per-query data store 'qdata'
- Fix python dict reference and double free in config.

17 June 2019: Wouter
- Master contains version 1.9.3 in development.
- Fix #39: In libunbound, leftover logfile is close()d unpredictably.
- Fix for #24: Fix abort due to scan of auth zone masters using old
address from previous scan.

12 June 2019: Wouter
- Fix another spoolbuf storage code point, in prefetch.
- 1.9.2rc3 release candidate tag. Which became the 1.9.2 release
on 17 June 2019.

11 June 2019: Wouter
- Fix that fixes the Fix that spoolbuf is not used to store tcp
pipelined response between mesh send and callback end, this fixes
error cases that did not use the correct spoolbuf.
- 1.9.2rc2 release candidate tag.

6 June 2019: Wouter
- 1.9.2rc1 release candidate tag.

4 June 2019: Wouter
- iana portlist updated.

29 May 2019: Wouter
- Fix to guard _OPENBSD_SOURCE from redefinition.

28 May 2019: Wouter
- Fix to define _OPENBSD_SOURCE to get reallocarray on NetBSD.
- gitignore config.h.in~.

27 May 2019: Wouter
- Fix double file close in tcp pipelined response code.

24 May 2019: Wouter
- Fix that spoolbuf is not used to store tcp pipelined response
between mesh send and callback end.

20 May 2019: Wouter
- Note that so-reuseport at extreme load is better turned off,
otherwise queries are not distributed evenly, on Linux 4.4.x.

16 May 2019: Wouter
- Fix #31: swig 4.0 and python module.

13 May 2019: Wouter
- Squelch log messages from tcp send about connection reset by peer.
They can be enabled with verbosity at higher values for diagnosing
network connectivity issues.
- Attempt to fix malformed tcp response.

9 May 2019: Wouter
- Revert fix for oss-fuzz, error is in that build script that
unconditionally includes .o files detected by configure, also
when the machine architecture uses different LIBOBJS files.

8 May 2019: Wouter
- Attempt to fix build failure in oss-fuzz because of reallocarray.
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14648.
Does not omit compile flags from commandline.

7 May 2019: Wouter
- Fix edns-subnet locks, in error cases the lock was not unlocked.
- Fix doxygen output error on readme markdown vignettes.

6 May 2019: Wouter
- Fix #29: Solaris 11.3 and missing symbols be64toh, htobe64.
- Fix #30: AddressSanitizer finding in lookup3.c. This sets the
hash function to use a slower but better auditable code that does
not read beyond array boundaries. This makes code better security
checkable, and is better for security. It is fixed to be slower,
but not read outside of the array.

2 May 2019: Wouter
- contrib/fastrpz.patch updated for code changes, and with git diff.
- Fix .gitignore, add pythonmod and dnstap generated files.
And unit test generated files, and generated doc files.

1 May 2019: Wouter
- Update makedist for git.
- Nicer travis output for clang analysis.
- PR #16: XoT support, AXFR over TLS, turn it on with
master: <ip>#<authname> in unbound.conf. This uses TLS to
download the AXFR (or IXFR).

25 April 2019: Wouter
- Fix wrong query name in local zone redirect answers with a CNAME,
the copy of the local alias is in unpacked form.

18 April 2019: Ralph
- Scrub RRs from answer section when reusing NXDOMAIN message for
subdomain answers.
- For harden-below-nxdomain: do not consider a name to be non-exitent
when message contains a CNAME record.

18 April 2019: Wouter
- travis build file.

16 April 2019: Wouter
- Better braces in if statement in TCP fastopen code.
- iana portlist updated.

15 April 2019: Wouter
- Fix tls write event for read state change to re-call SSL_write and
not resume the TLS handshake.

11 April 2019: George
- Update python documentation for init_standard().
- Typos.

11 April 2019: Wouter
- Fix that auth zone uses correct network type for sockets for
SOA serial probes. This fixes that probes fail because earlier
probe addresses are unreachable.
- Fix that auth zone fails over to next master for timeout in tcp.
- Squelch SSL read and write connection reset by peer and broken pipe
messages. Verbosity 2 and higher enables them.

8 April 2019: Wouter
- Fix to use event_assign with libevent for thread-safety.
- verbose information about auth zone lookup process, also lookup
start, timeout and fail.
- Fix #17: Add python module example from Jan Janak, that is a
plugin for the Unbound DNS resolver to resolve DNS records in
multicast DNS [RFC 6762] via Avahi. The plugin communicates
with Avahi via DBus. The comment section at the beginning of
the file contains detailed documentation.
- Fix to wipe ssl ticket keys from memory with explicit_bzero,
if available.

5 April 2019: Wouter
- Fix to reinit event structure for accepted TCP (and TLS) sockets.

4 April 2019: Wouter
- Fix spelling error in log output for event method.

3 April 2019: Wouter
- Move goto label in answer_from_cache to the end of the function
where it is more visible.
- Fix auth-zone NSEC3 response for wildcard nodata answers,
include the closest encloser in the answer.

2 April 2019: Wouter
- Fix auth-zone NSEC3 response for empty nonterminals with exact
match nsec3 records.
- Fix for out of bounds integers, thanks to OSTIF audit. It is in
allocation debug code.
- Fix for auth zone nsec3 ent fix for wildcard nodata.

25 March 2019: Wouter
- Fix that tls-session-ticket-keys: "" on its own in unbound.conf
disables the tls session ticker key calls into the OpenSSL API.
- Fix crash if tls-servic-pem not filled in when necessary.

21 March 2019: Wouter
- Fix #4240: Fix whitespace cleanup in example.conf.

19 March 2019: Wouter
- add type CAA to libpyunbound (accessing libunbound from python).

18 March 2019: Wouter
- Add log message, at verbosity 4, that says the query is encrypted
with TLS, if that is enabled for the query.
- Fix #4239: set NOTIMPL when deny-any is enabled, for RFC8482.

7 March 2019: Wouter
- Fix for #4233: guard use of NDEBUG, so that it can be passed in
CFLAGS into configure.

branches: 1.1.1.4.2;
Import 1.9.1:

1 March 2019: Wouter
- output forwarder log in ssl_req_order test.

28 February 2019: Wouter
- Remove memory leak on pythonmod python2 script file init.
- Remove swig gcc8 python function cast warnings, they are ignored.
- Print correct module that failed when module-config is wrong.

27 February 2019: Wouter
- Fix #4229: Unbound man pages lack information, about access-control
order and local zone tags, and elements in views.
- Fix #14: contrib/unbound.init: Fix wrong comparison judgment
before copying.
- Fix for python module on Windows, fix fopen.

25 February 2019: Wouter
- Fix #4227: pair event del and add for libevent for tcp_req_info.

21 February 2019: Wouter
- Fix the error for unknown module in module-config is understandable,
and explains it was not compiled in and where to see the list.
- In example.conf explain where to put cachedb module in module-config.
- In man page and example config explain that most modules have to
be listed at the start of module-config.

20 February 2019: Wouter
- Fix pythonmod include and sockaddr_un ifdefs for compile on
Windows, and for libunbound.

18 February 2019: Wouter
- Print query name with ip_ratelimit exceeded log lines.
- Spaces instead of tabs in that log message.
- Print query name and IP address when domain rate limit exceeded.

14 February 2019: Wouter
- Fix capsforid canonical sort qsort callback.

11 February 2019: Wouter
- Note default for module-config in man page.
- Fix recursion lame test for qname minimisation asked queries,
that were not present in the set of prepared answers.
- Fix #13: Remove left-over requirements on OpenSSL >= 1.1.0 for
cert name matching, from man page.
- make depend, with newer gcc, nicer layout.

7 February 2019: Wouter
- Fix #4206: OpenSSL 1.0.2 hostname verification for FreeBSD 11.2.
- Fix that qname minimisation does not skip a label when missing
nameserver targets need to be fetched.
- Fix #4225: clients seem to erroneously receive no answer with
DNS-over-TLS and qname-minimisation.

4 February 2019: Wouter
- Fix that log-replies prints the correct name for local-alias
names, for names that have a CNAME in local-data configuration.
It logs the original query name, not the target of the CNAME.
- Add local-zone type inform_redirect, which logs like type inform,
and redirects like type redirect.
- Perform canonical sort for 0x20 capsforid compare of replies,
this sorts rrsets in the authority and additional section before
comparison, so that out of order rrsets do not cause failure.

31 January 2019: Wouter
- Set ub_ctx_set_tls call signature in ltrace config file for
libunbound in contrib/libunbound.so.conf.
- improve documentation for tls-service-key and forward-first.
- #10: fixed pkg-config operations, PKG_PROG_PKG_CONFIG moved out of
conditional section, fixes systemd builds, from Enrico Scholz.
- #9: For openssl 1.0.2 use the CRYPTO_THREADID locking callbacks,
still supports the set_id_callback previous API. And for 1.1.0
no locking callbacks are needed.
- #8: Fix OpenSSL without ENGINE support compilation.
- Wipe TLS session key data from memory on exit.

30 January 2019: Ralph
- Fix case in which query timeout can result in marking delegation
as edns_lame_known.

29 January 2019: Wouter
- Fix spelling of tls-ciphers in example.conf.in.
- Fix #4224: auth_xfr_notify.rpl test broken due to typo
- Fix locking for libunbound context setup with broken port config.

28 January 2019: Wouter
- ub_ctx_set_tls call for libunbound that enables DoT for the machines
set with ub_ctx_set_fwd. Patch from Florian Obser.
- Set build system for added call in the libunbound API.
- List example config for root zone copy locally hosted with auth-zone
as suggested from draft-ietf-dnsop-7706-bis-02. But with updated
B root address.
- set version to 1.9.0 for release. And this was released with the
spelling for tls-ciphers fix as 1.9.0 on Feb 5. Trunk has 1.9.1 in
development.

25 January 2019: Wouter
- Fix that tcp for auth zone and outgoing does not remove and
then gets the ssl read again applied to the deleted commpoint.
- updated contrib/fastrpz.patch to cleanly diff.
- no lock when threads disabled in tcp request buffer count.
- remove compile warnings from libnettle compile.
- output of newer lex 2.6.1 and bison 3.0.5.

24 January 2019: Wouter
- Newer aclocal and libtoolize used for generating configure scripts,
aclocal 1.16.1 and libtoolize 2.4.6.
- Fix unit test for python 3.7 new keyword 'async'.
- clang analysis fixes, assert arc4random buffer in init,
no check for already checked delegation pointer in iterator,
in testcode check for NULL packet matches, in perf do not copy
from NULL start list when growing capacity. Adjust host and file
only when present in test header read to please checker. In
testcode for unknown macro operand give zero result. Initialise the
passed argv array in test code. In test code add EDNS data
segment copy only when nonempty.
- Patch from Florian Obser fixes some compiler warnings:
include mini_event.h to have a prototype for mini_ev_cmp
include edns.h to have a prototype for apply_edns_options
sldns_wire2str_edns_keepalive_print is only called in the wire2str,
module declare it static to get rid of compiler warning:
no previous prototype for function
infra_find_ip_ratedata() is only called in the infra module,
declare it static to get rid of compiler warning:
no previous prototype for function
do not shadow local variable buf in authzone
auth_chunks_delete and az_nsec3_findnode are only called in the
authzone module, declare them static to get rid of compiler warning:
no previous prototype for function...
copy_rrset() is only called in the respip module, declare it
static to get rid of compiler warning:
no previous prototype for function 'copy_rrset'
no need for another variable "r"; gets rid of compiler warning:
declaration shadows a local variable in libunbound.c
no need for another variable "ns"; gets rid of compiler warning:
declaration shadows a local variable in iterator.c
- Moved includes and make depend.

23 January 2019: Wouter
- Patch from Manabu Sonoda with tls-ciphers and tls-ciphersuites
options for unbound.conf.
- Fixes for the patch, and man page entry.
- Fix configure to detect SSL_CTX_set_ciphersuites, for better
library compatibility when compiling.
- Patch for TLS session resumption from Manabu Sonoda,
enable with tls-session-ticket-keys in unbound.conf.
- Fixes for patch (includes, declarations, warnings). Free at end
and keep config options in order read from file to keep the first
one as the first one.
- Fix for IXFR fallback to reset counter when IXFR does not timeout.

22 January 2019: Wouter
- Fix space calculation for tcp req buffer size.
- Doc for stream-wait-size and unit test.
- unbound-control stats has mem.streamwait that counts TCP and TLS
waiting result buffers.
- Fix for #4219: secondaries not updated after serial change, unbound
falls back to AXFR after IXFR gives several timeout failures.
- Fix that auth zone after IXFR fallback tries the same master.

21 January 2019: Wouter
- Fix tcp idle timeout test, for difference in the tcp reply code.
- Unit test for tcp request reorder and timeouts.
- Unit tests for ssl out of order processing.
- Fix that multiple dns fragments can be carried in one TLS frame.
- Add stream-wait-size: 4m config option to limit the maximum
memory used by waiting tcp and tls stream replies. This avoids
a denial of service where these replies use up all of the memory.

17 January 2019: Wouter
- For caps-for-id fallback, use the whitelist to avoid timeout
starting a fallback sequence for it.
- increase mesh max activation count for capsforid long fetches.

16 January 2019: Ralph
- Get ready for the DNS flag day: remove EDNS lame procedure, do not
re-query without EDNS after timeout.

15 January 2019: Wouter
- In the out of order processing, reset byte count for (potential)
partial read.
- Review fixes in out of order processing.

14 January 2019: Wouter
- streamtcp option -a send queries consecutively and prints answers
as they arrive.
- Fix for out of order processing administration quit cleanup.
- unit test for tcp out of order processing.

11 January 2019: Wouter
- Initial commit for out-of-order processing for TCP and TLS.

9 January 2019: Wouter
- Log query name for looping module errors.

8 January 2019: Wouter
- Fix syntax in comment of local alias processing.
- Fix NSEC3 record that is returned in wildcard replies from
auth-zone zones with NSEC3 and wildcards.

7 January 2019: Wouter
- On FreeBSD warn if systcl settings do not allow server TCP FASTOPEN,
and server tcp fastopen is enabled at compile time.
- Document interaction between the tls-upstream option in the server
section and forward-tls-upstream option in the forward-zone sections.
- Add contrib/unbound-fuzzme.patch from Jacob Hoffman-Andrews,
the patch adds a program used for fuzzing.

12 December 2018: Wouter
- Fix for crash in dns64 module if response is null.

10 December 2018: Wouter
- Fix config parser memory leaks.
- ip-ratelimit-factor of 1 allows all traffic through, instead of the
previous blocking everything.
- Fix for FreeBSD port make with dnscrypt and dnstap enabled.
- Fix #4206: support openssl 1.0.2 for TLS hostname verification,
alongside the 1.1.0 and later support that is already there.
- Fixup openssl 1.0.2 compile

6 December 2018: Wouter
- Fix dns64 allocation in wrong region for returned internal queries.

3 December 2018: Wouter
- Fix icon, no ragged edges and nicer resolutions available, for eg.
Win 7 and Windows 10 display.
- cache-max-ttl also defines upperbound of initial TTL in response.

30 November 2018: Wouter
- Patch for typo in unbound.conf man page.
- log-tag-queryreply: yes in unbound.conf tags the log-queries and
log-replies in the log file for easier log filter maintenance.

29 November 2018: Wouter
- iana portlist updated.
- Fix chroot auth-zone fix to remove chroot prefix.
- tag for 1.8.2rc1, which became 1.8.2 on 4 dec 2018, with icon
updated. Trunk contains 1.8.3 in development.
Which became 1.8.3 on 11 december with only the dns64 fix of 6 dec.
Trunk then became 1.8.4 in development.
- Fix that unbound-checkconf does not complains if the config file
is not placed inside the chroot.
- Refuse to start with no ports.
- Remove clang analysis warnings.

28 November 2018: Wouter
- Fix leak in chroot fix for auth-zone.
- Fix clang analysis for outside directory build test.

27 November 2018: Wouter
- Fix DNS64 to not store intermediate results in cache, this avoids
other threads from picking up the wrong data. The module restores
the previous no_cache_store setting when the the module is finished.
- Fix #4208: 'stub-no-cache' and 'forward-no-cache' not work.
- New and better fix for Fix #4193: Fix that prefetch failure does
not overwrite valid cache entry with SERVFAIL.
- auth-zone give SERVFAIL when expired, fallback activates when
expired, and this is documented in the man page.
- stat count SERVFAIL downstream auth-zone queries for expired zones.
- Put new logos into windows installer.
- Fix windows compile for new rrset roundrobin fix.
- Update contrib fastrpz patch for latest release.

26 November 2018: Wouter
- Fix to not set GLOB_NOSORT so the unbound.conf include: files are
sorted and in a predictable order.
- Fix #4193: Fix that prefetch failure does not overwrite valid cache
entry with SERVFAIL.
- Add unbound-control view_local_datas command, like local_datas.
- Fix that unbound-control can send file for view_local_datas.

22 November 2018: Wouter
- With ./configure --with-pyunbound --with-pythonmodule
PYTHON_VERSION=3.6 or with 2.7 unbound can compile and unit tests
succeed for the python module.
- pythonmod logs the python error and traceback on failure.
- ignore debug python module for test in doxygen output.
- review fixes for python module.
- Fix #4209: Crash in libunbound when called from getdns.
- auth zone zonefiles can be in a chroot, the chroot directory
components are removed before use.
- Fix that empty zonefile means the zonefile is not set and not used.
- make depend.

21 November 2018: Wouter
- Scrub NS records from NODATA responses as well.

20 November 2018: Wouter
- Scrub NS records from NXDOMAIN responses to stop fragmentation
poisoning of the cache.
- Add patch from Jan Vcelak for pythonmod,
add sockaddr_storage getters, add support for query callbacks,
allow raw address access via comm_reply and update API documentation.
- Removed compile warnings in pythonmod sockaddr routines.

19 November 2018: Wouter
- Support SO_REUSEPORT_LB in FreeBSD 12 with the so-reuseport: yes
option in unbound.conf.

6 November 2018: Ralph
- Bugfix min-client-subnet-ipv6

25 October 2018: Ralph
- Add min-client-subnet-ipv6 and min-client-subnet-ipv4 options.

25 October 2018: Wouter
- Fix #4191: NXDOMAIN vs SERVFAIL during dns64 PTR query.
- Fix #4190: Please create a "ANY" deny option, adds the option
deny-any: yes in unbound.conf. This responds with an empty message
to queries of type ANY.
- Fix #4141: More randomness to rrset-roundrobin.
- Fix #4132: Openness/closeness of RANGE intervals in rpl files.
- Fix #4126: RTT_band too low on VSAT links with 600+ms latency,
adds the option unknown-server-time-limit to unbound.conf that
can be increased to avoid the problem.
- remade makefile dependencies.
- Fix #4152: Logs shows wrong time when using log-time-ascii: yes.

24 October 2018: Ralph
- Add markdel function to ECS slabhash.
- Limit ECS scope returned to client to the scope used for caching.
- Make lint like previous #4154 fix.

22 October 2018: Wouter
- Fix #4192: unbound-control-setup generates keys not readable by
group.
- check that the dnstap socket file can be opened and exists, print
error if not.
- Fix #4154: make ECS_MAX_TREESIZE configurable, with
the max-ecs-tree-size-ipv4 and max-ecs-tree-size-ipv6 options.

22 October 2018: Ralph
- Change fast-server-num default to 3.

8 October 2018: Ralph
- Add fast-server-permil and fast-server-num options.
- Deprecate low-rtt and low-rtt-permil options.

8 October 2018: Wouter
- Squelch log of failed to tcp initiate after TCP Fastopen failure.

5 October 2018: Wouter
- Squelch EADDRNOTAVAIL errors when the interface goes away,
this omits 'can't assign requested address' errors unless
verbosity is set to a high value.
- Set default for so-reuseport to no for FreeBSD. It is enabled
by default for Linux and DragonFlyBSD. The setting can
be configured in unbound.conf to override the default.
- iana port update.

2 October 2018: Wouter
- updated contrib/fastrpz.patch to apply for this version
- dnscrypt.c removed sizeof to get array bounds.
- Fix testlock code to set noreturn on error routine.
- Remove unused variable from contrib fastrpz/rpz.c and
remove unused diagnostic pragmas that themselves generate warnings
- clang analyze test is used only when assertions are enabled.

1 October 2018: Wouter
- tag for release 1.8.1rc1. Became release 1.8.1 on 8 oct, with
fastrpz.patch fix included. Trunk has 1.8.2 in development.

27 September 2018: Wouter
- Fix #4188: IPv6 forwarders without ipv6 result in SERVFAIL, fixes
qname minimisation with a forwarder when connectivity has issues
from rejecting responses.

25 September 2018: Wouter
- Perform TLS SNI indication of the host that is being contacted
for DNS over TLS service. It sets the configured tls auth name.
This is useful for hosts that apart from the DNS over TLS services
also provide other (web) services.
- Fix #4149: Add SSL cleanup for tcp timeout.

17 September 2018: Wouter
- Fix compile on Mac for unbound, provide explicit_bzero when libc
does not have it.
- Fix unbound for openssl in FIPS mode, it uses the digests with
the EVP call contexts.
- Fix that with harden-below-nxdomain and qname minisation enabled
some iterator states for nonresponsive domains can get into a
state where they waited for an empty list.
- Stop UDP to TCP failover after timeouts that causes the ping count
to be reset by the TCP time measurement (that exists for TLS),
because that causes the UDP part to not be measured as timeout.
- Fix #4156: Fix systemd service manager state change notification.

13 September 2018: Wouter
- Fix seed for random backup code to use explicit zero when wiped.
- exit log routine is annotated as noreturn function.
- free memory leaks in config strlist and str2list insert functions.
- do not move unused argv variable after getopt.
- Remove unused if clause in testcode.
- in testcode, free async ids, initialise array, and check for null
pointer during test of the test. And use exit for return to note
irregular program stop.
- Free memory leak in config strlist append.
- make sure nsec3 comparison salt is initialized.
- unit test has clang analysis.
- remove unused variable assignment from iterator scrub routine.
- check for null in delegation point during iterator refetch
in forward zone.
- neater pointer cast in libunbound context quit routine.
- initialize statistics totals for printout.
- in authzone check that node exists before adding rrset.
- in unbound-anchor, use readwrite memory BIO.
- assertion in autotrust that packed rrset is formed correctly.
- Fix memory leak when message parse fails partway through copy.
- remove unused udpsize assignment in message encode.
- nicer bio free code in unbound-anchor.
- annotate exit functions with noreturn in unbound-control.

11 September 2018: Wouter
- Fixed unused return value warnings in contrib/fastrpz.patch for
asprintf.
- Fix to squelch respip warning in unit test, it is printed at
higher verbosity settings.
- Fix spelling errors.
- Fix initialisation in remote.c

10 September 2018: Wouter
- 1.8.1 in svn trunk. (changes from 4,5,.. sep apply).
- iana port update.

5 September 2018: Wouter
- Fix spelling error in header, from getdns commit by Andreas Gelmini.

4 September 2018: Ralph
- More explicitly mention the type of ratelimit when applying
ip-ratelimit.

4 September 2018: Wouter
- Tag for 1.8.0rc1 release, became 1.8.0 release on 10 Sep 2018.

31 August 2018: Wouter
- Disable minimal-responses in subnet unit tests.

30 August 2018: Wouter
- Fix that a local-zone with a local-zone-type that is transparent
in a view with view-first, makes queries check for answers from the
local-zones defined outside of views.

28 August 2018: Ralph
- Disable minimal-responses in ipsecmod unit tests.
- Added serve-expired-ttl and serve-expired-ttl-reset options.

27 August 2018: Wouter
- Set defaults to yes for a number of options to increase speed and
resilience of the server. The so-reuseport, harden-below-nxdomain,
and minimal-responses options are enabled by default. They used
to be disabled by default, waiting to make sure they worked. They
are enabled by default now, and can be disabled explicitly by
setting them to "no" in the unbound.conf config file. The reuseport
and minimal options increases speed of the server, and should be
otherwise harmless. The harden-below-nxdomain option works well
together with the recently default enabled qname minimisation, this
causes more fetches to use information from the cache.
- next release is called 1.8.0.
- Fix lintflags for lint on FreeBSD.

22 August 2018: George
- #4140: Expose repinfo (comm_reply) to the inplace_callbacks. This
gives access to reply information for the client's communication
point when the callback is called before the mesh state (modules).
Changes to C and Python's inplace_callback signatures were also
necessary.

21 August 2018: Wouter
- log-local-actions: yes option for unbound.conf that logs all the
local zone actions, a patch from Saksham Manchanda (Secure64).
- #4146: num.query.subnet and num.query.subnet_cache counters.
- Fix only misc failure from log-servfail when val-log-level is not
enabled.

17 August 2018: Ralph
- Fix classification for QTYPE=CNAME queries when QNAME minimisation is
enabled.

17 August 2018: Wouter
- Set libunbound to increase current, because the libunbound change
to the event callback function signature. That needs programs,
that use it, to recompile against the new header definition.
- print servfail info to log as error.
- added more servfail printout statements, to the iterator.
- log-servfail: yes prints log lines that say why queries are
returning SERVFAIL to clients.

16 August 2018: Wouter
- Fix warning on compile without threads.
- Fix contrib/fastrpz.patch.

15 August 2018: Wouter
- Fix segfault in auth-zone read and reorder of RRSIGs.

14 August 2018: Wouter
- Fix that printout of error for cycle targets is a verbosity 4
printout and does not wrongly print it is a memory error.
- Upgraded crosscompile script to include libunbound DLL in the
zipfile.

10 August 2018: Wouter
- Fix #4144: dns64 module caches wrong (negative) information.

9 August 2018: Wouter
- unbound-checkconf checks if modules exist and prints if they are
not compiled in the name of the wrong module.
- document --enable-subnet in doc/README.
- Patch for stub-no-cache and forward-no-cache options that disable
caching for the contents of that stub or forward, for when you
want immediate changes visible, from Bjoern A. Zeeb.

7 August 2018: Ralph
- Make capsforid fallback QNAME minimisation aware.

7 August 2018: Wouter
- Fix #4142: unbound.service.in: improvements and fixes.
Add unit dependency ordering (based on systemd-resolved).
Add 'CAP_SYS_RESOURCE' to 'CapabilityBoundingSet' (fixes warnings
about missing privileges during startup). Add 'AF_INET6' to
'RestrictAddressFamilies' (without it IPV6 can't work). From
Guido Shanahan.
- Patch to implement tcp-connection-limit from Jim Hague (Sinodun).
This limits the number of simultaneous TCP client connections
from a nominated netblock.
- make depend, yacc, lex, doc, headers. And log the limit exceeded
message only on high verbosity, so as to not spam the logs when
it is busy.

6 August 2018: Wouter
- Fix for #4136: Fix to unconditionally call destroy in daemon.c.

3 August 2018: George
- Expose if a query (or a subquery) was ratelimited (not src IP
ratelimiting) to libunbound under 'ub_result.was_ratelimited'.
This also introduces a change to 'ub_event_callback_type' in
libunbound/unbound-event.h.
- Tidy pylib tests.

3 August 2018: Wouter
- Revert previous change for #4136: because it introduces build
problems.
- New fix for #4136: This one ignores lex without without
yylex_destroy.

1 August 2018: Wouter
- Fix to remove systemd sockaddr function check, that is not
always present. Make socket activation more lenient. But not
different when socket activation is not used.
- iana port list update.

31 July 2018: Wouter
- Patches from Jim Hague (Sinodun) for EDNS KeepAlive.
- Sort out test runs when the build directory isn't the project
root directory.
- Add config tcp-idle-timeout (default 30s). This applies to
client connections only; the timeout on TCP connections upstream
is unaffected.
- Error if EDNS Keepalive received over UDP.
- Add edns-tcp-keepalive and edns-tcp-keepalive timeout options
and implement option in client responses.
- Correct and expand manual page entries for keepalive and idle timeout.
- Implement progressive backoff of TCP idle/keepalive timeout.
- Fix 'make depend' to work when build dir is not project root.
- Add delay parameter to streamtcp, -d secs.
To be used when testing idle timeout.
- From Wouter: make depend, the dependencies in the patches did not
apply cleanly. Also remade yacc and lex.
- Fix mesh.c incompatible pointer pass.
- Please doxygen so it passes.
- Fix #4139: Fix unbound-host leaks memory on ANY.

30 July 2018: Wouter
- Fix #4136: insufficiency from mismatch of FLEX capability between
released tarball and build host.

27 July 2018: Wouter
- Fix man page, say that chroot is enabled by default.

26 July 2018: Wouter
- Fix #4135: 64-bit Windows Installer Creates Entries Under The
Wrong Registry Key, reported by Brian White.

23 July 2018: Wouter
- Fix use-systemd readiness signalling, only when use-systemd is yes
and not in signal handler.

20 July 2018: Wouter
- Fix #4130: print text describing -dd and unbound-checkconf on
config file read error at startup, the errors may have been moved
away by the startup process.
- Fix #4131: for solaris, error YY_CURRENT_BUFFER undeclared.

19 July 2018: Wouter
- Fix #4129 unbound-control error message with wrong cert permissions
is too cryptic.

17 July 2018: Wouter
- Fix #4127 unbound -h does not list -p help.
- Print error if SSL name verification configured but not available
in the ssl library.
- Fix that ratelimit and ip-ratelimit are applied after reload of
changed config file.
- Resize ratelimit and ip-ratelimit caches if changed on reload.

16 July 2018: Wouter
- Fix qname minimisation NXDOMAIN validation lookup failures causing
error_supers assertion fails.
- Squelch can't bind socket errors with Permission denied unless
verbosity is 4 or higher, for UDP outgoing sockets.

12 July 2018: Wouter
- Fix to improve systemd socket activation code file descriptor
assignment.
- Fix for 4126 that the #define for UNKNOWN_SERVER_NICENESS can be more
easily changed to adjust default rtt assumptions.

10 July 2018: Wouter
- Note in documentation that the cert name match code needs
OpenSSL 1.1.0 or later to be enabled.

6 July 2018: Wouter
- Fix documentation ambiguity for tls-win-cert in tls-upstream and
forward-tls-upstream docs.
- iana port update.
- Note RFC8162 support. SMIMEA record type can be read in by the
zone record parser.
- Fix round robin for failed addresses with prefer-ip6: yes

4 July 2018: Wouter
- Fix #4112: Fix that unbound-anchor -f /etc/resolv.conf will not pass
if DNSSEC is not enabled. New option -R allows fallback from
resolv.conf to direct queries.

3 July 2018: Wouter
- Better documentation for unblock-lan-zones and insecure-lan-zones
config statements.
- Fix permission denied printed for auth zone probe random port nrs.

2 July 2018: Wouter
- Fix checking for libhiredis printout in configure output.
- Fix typo on man page in ip-address description.
- Update libunbound/python/examples/dnssec_test.py example code to
also set the 20326 trust anchor for the root in the example code.

29 June 2018: Wouter
- dns64-ignore-aaaa: config option to list domain names for which the
existing AAAA is ignored and dns64 processing is used on the A
record.

28 June 2018: Wouter
- num.queries.tls counter for queries over TLS.
- log port number with err_addr logs.

27 June 2018: Wouter
- #4109: Fix that package config depends on python unconditionally.
- Patch, do not export python from pkg-config, from Petr Men����k.

26 June 2018: Wouter
- Partial fix for permission denied on IPv6 address on FreeBSD.
- Fix that auth-zone master reply with current SOA serial does not
stop scan of masters for an updated zone.
- Fix that auth-zone does not start the wait timer without checking
if the wait timer has already been started.

21 June 2018: Wouter
- #4108: systemd reload hang fix.
- Fix usage printout for unbound-host, hostname has to be last
argument on BSDs and Windows.

Import unbound-1.7.3

19 June 2018: Wouter
- Fix for unbound-control on Windows and set TCP socket parameters
more closely.
- Fix windows unbound-control no cert bad file descriptor error.

18 June 2018: Wouter
- Fix that control-use-cert: no works for 127.0.0.1 to disable certs.
- Fix unbound-checkconf for control-use-cert.

15 June 2018: Wouter
- tag for 1.7.3rc1.

14 June 2018: Wouter
- #4103: Fix that auth-zone does not insist on SOA record first in
file for url downloads.
- Fix that first control-interface determines if TLS is used. Warn
when IP address interfaces are used without TLS.
- Fix nettle compile.

12 June 2018: Ralph
- Don't count CNAME response types received during qname minimisation as
query restart.

12 June 2018: Wouter
- #4102 for NSD, but for Unbound. Named unix pipes do not use
certificate and key files, access can be restricted with file and
directory permissions. The option control-use-cert is no longer
used, and ignored if found in unbound.conf.
- Rename tls-additional-ports to tls-additional-port, because every
line adds one port.
- Fix buffer size warning in unit test.
- remade dependencies in the Makefile.

6 June 2018: Wouter
- Patch to fix openwrt for mac os build darwin detection in configure.

5 June 2018: Wouter
- Fix crash if ratelimit taken into use with unbound-control
instead of with unbound.conf.

4 June 2018: Wouter
- Fix deadlock caused by incoming notify for auth-zone.
- tag for 1.7.2rc1, became 1.7.2 release on 11 June 2018,
trunk is 1.7.3 in development from this point.
- #4100: Fix stub reprime when it becomes useless.

1 June 2018: Wouter
- Rename additional-tls-port to tls-additional-ports.
The older name is accepted for backwards compatibility.

30 May 2018: Wouter
- Patch from Syzdek: Add ability to ignore RD bit and treat all
requests as if the RD bit is set.

29 May 2018: Wouter
- in compat/arc4random call getentropy_urandom when getentropy fails
with ENOSYS.
- Fix that fallback for windows port.

28 May 2018: Wouter
- Fix windows tcp and tls spin on events.
- Add routine from getdns to add windows cert store to the SSL_CTX.
- tls-win-cert option that adds the system certificate store for
authenticating DNS-over-TLS connections. It can be used instead
of the tls-cert-bundle option, or with it to add certificates.

25 May 2018: Wouter
- For TCP and TLS connections that don't establish, perform address
update in infra cache, so future selections can exclude them.
- Fix that tcp sticky events are removed for closed fd on windows.
- Fix close events for tcp only.

24 May 2018: Wouter
- Fix that libunbound can do DNS-over-TLS, when configured.
- Fix that windows unbound service can use DNS-over-TLS.
- unbound-host initializes ssl (for potential DNS-over-TLS usage
inside libunbound), when ssl upstream or a cert-bundle is configured.

23 May 2018: Wouter
- Use accept4 to speed up incoming TCP (and TLS) connections,
available on Linux, FreeBSD and OpenBSD.

17 May 2018: Ralph
- Qname minimisation default changed to yes.

15 May 2018: Wouter
- Fix low-rtt-pct to low-rtt-permil, as it is parts in one thousand.

11 May 2018: Wouter
- Fix contrib/libunbound.pc for libssl libcrypto references,
from https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=226914

7 May 2018: Wouter
- Fix windows to not have sticky TLS events for TCP.
- Fix read of DNS over TLS length and data in one read call.
- Fix mesh state assertion failure due to callback removal.

3 May 2018: Wouter
- Fix that configure --with-libhiredis also turns on cachedb.
- Fix gcc 8 buffer warning in testcode.
- Fix function type cast warning in libunbound context callback type.

2 May 2018: Wouter
- Fix fail to reject dead peers in forward-zone, with ssl-upstream.

1 May 2018: Wouter
- Fix that unbound-control reload frees the rrset keys and returns
the memory pages to the system.

30 April 2018: Wouter
- Fix spelling error in man page and note defaults as no instead of
off.

26 April 2018: Wouter
- Fix for crash in daemon_cleanup with dnstap during reload,
from Saksham Manchanda.
- Also that for dnscrypt.
- tag for 1.7.1rc1 release. Became 1.7.1 release on 3 May, trunk
is from here 1.7.2 in development.

25 April 2018: Ralph
- Fix memory leak when caching wildcard records for aggressive NSEC use

24 April 2018: Wouter
- Fix contrib/fastrpz.patch for this release.
- Fix auth https for libev.

24 April 2018: Ralph
- Added root-key-sentinel support

23 April 2018: Wouter
- makedist uses bz2 for expat code, instead of tar.gz.
- Fix #4092: libunbound: use-caps-for-id lacks colon in
config_set_option.
- auth zone http download stores exact copy of downloaded file,
including comments in the file.
- Fix sldns parse failure for CDS alternate delete syntax empty hex.
- Attempt for auth zone fix; add of callback in mesh gets from
callback does not skip callback of result.
- Fix cname classification with qname minimisation enabled.
- list_auth_zones unbound-control command.

20 April 2018: Wouter
- man page documentation for dns-over-tls forward-addr '#' notation.
- removed free from failed parse case.
- Fix #4091: Fix that reload of auth-zone does not merge the zonefile
with the previous contents.
- Delete auth zone when removed from config.

19 April 2018: Wouter
- Can set tls authentication with forward-addr: IP#tls.auth.name
And put the public cert bundle in tls-cert-bundle: "ca-bundle.pem".
such as forward-addr: 9.9.9.9@853#dns.quad9.net or
1.1.1.1@853#cloudflare-dns.com
- Fix #658: unbound using TLS in a forwarding configuration does not
verify the server's certificate (RFC 8310 support).
- For addr with #authname and no @port notation, the default is 853.

18 April 2018: Wouter
- Fix auth-zone retry timer to be on schedule with retry timeout,
with backoff. Also time a refresh at the zone expiry.

17 April 2018: Wouter
- auth zone notify work.
- allow-notify: config statement for auth-zones.
- unit test for allow-notify

16 April 2018: Wouter
- Fix auth zone target lookup iterator.
- auth zone notify with prefix
- auth zone notify work.

13 April 2018: Wouter
- Fix for max include depth for authzones.
- Fix memory free on fail for $INCLUDE in authzone.
- Fix that an internal error to look up the wrong rr type for
auth zone gets stopped, before trying to send there.
- auth zone notify work.

10 April 2018: Ralph
- num.query.aggressive.NOERROR and num.query.aggressive.NXDOMAIN
statistics counters.

10 April 2018: Wouter
- documentation for low-rtt and low-rtt-pct.
- auth zone notify work.

9 April 2018: Wouter
- Fix that flush_zone sets prefetch ttl expired, so that with
serve-expired enabled it'll start prefetching those entries.
- num.query.authzone.up and num.query.authzone.down statistics counters.
- Fix downstream auth zone, only fallback when auth zone fails to
answer and fallback is enabled.
- Accept both option names with and without colon for get_option
and set_option.
- low-rtt and low-rtt-pct in unbound.conf enable the server selection
of fast servers for some percentage of the time.

5 April 2018: Wouter
- Combine write of tcp length and tcp query for dns over tls.
- nitpick fixes in example.conf.
- Fix above stub queries for type NS and useless delegation point.
- Fix unbound-control over pipe with openssl 1.1.1, the TLSv1.3
tls_choose_sigalg routine does not allow the ciphers for the pipe,
so use TLSv1.2.
- ED448 support.

3 April 2018: Wouter
- Fix #4043: make test fails due to v6 presentation issue in macOS.
- Fix unable to resolve after new WLAN connection, due to auth-zone
failing with a forwarder set. Now, auth-zone is only used for
answers (not referrals) when a forwarder is set.

29 March 2018: Ralph
- Check "result" in dup_all(), by Florian Obser.

23 March 2018: Ralph
- Fix unbound-control get_option aggressive-nsec

21 March 2018: Ralph
- Do not use cached NSEC records to generate negative answers for
domains under DNSSEC Negative Trust Anchors.

19 March 2018: Wouter
- iana port update.

16 March 2018: Wouter
- corrected a minor typo in the changelog.
- move htobe64/be64toh portability code to cachedb.c.

15 March 2018: Wouter
- Add --with-libhiredis, unbound support for a new cachedb backend
that uses a Redis server as the storage. This implementation
depends on the hiredis client library (https://redislabs.com/lp/hiredis/).
And unbound should be built with both --enable-cachedb and
--with-libhiredis[=PATH] (where $PATH/include/hiredis/hiredis.h
should exist). Patch from Jinmei Tatuya (Infoblox).
- Fix #3817: core dump happens in libunbound delete, when queued
servfail hits deleted message queue.
- Create additional tls service interfaces by opening them on other
portnumbers and listing the portnumbers as additional-tls-port: nr.

13 March 2018: Wouter
- Fix typo in documentation.
- Fix #3736: Fix 0 TTL domains stuck on SERVFAIL unless manually
flushed with serve-expired on.

12 March 2018: Wouter
- Added documentation for aggressive-nsec: yes.
- tag 1.7.0rc3. That became the 1.7.0 release on 15 Mar, trunk
now has 1.7.1 in development.
- Fix #3727: Protocol name is TLS, options have been renamed but
documentation is not consistent.
- Check IXFR start serial.

9 March 2018: Wouter
- Fix #3598: Fix swig build issue on rhel6 based system.
configure --disable-swig-version-check stops the swig version check.

8 March 2018: Wouter
- tag 1.7.0rc2.

7 March 2018: Wouter
- Fixed contrib/fastrpz.patch, even though this already applied
cleanly for me, now also for others.
- patch to log creates keytag queries, from A. Schulze.
- patch suggested by Debian lintian: allow to -> allow one to, from
A. Schulze.
- Attempt to remove warning about trailing whitespace.

6 March 2018: Wouter
- Reverted fix for #3512, this may not be the best way forward;
although it could be changed at a later time, to stay similar to
other implementations.
- svn trunk contains 1.7.0, this is the number for the next release.
- Fix for windows compile.
- tag 1.7.0rc1.

5 March 2018: Wouter
- Fix to check define of DSA for when openssl is without deprecated.
- iana port update.
- Fix #3582: Squelch address already in use log when reuseaddr option
causes same port to be used twice for tcp connections.

27 February 2018: Wouter
- Fixup contrib/fastrpz.patch so that it applies.
- Fix compile without threads, and remove unused variable.
- Fix compile with staticexe and python module.
- Fix nettle compile.

22 February 2018: Ralph
- Save wildcard RRset from answer with original owner for use in
aggressive NSEC.

21 February 2018: Wouter
- Fix #3512: unbound incorrectly reports SERVFAIL for CAA query
when there is a CNAME loop.
- Fix validation for CNAME loops. When it detects a cname loop,
by finding the cname, cname in the existing list, it returns
the partial result with the validation result up to then.
- more robust cachedump rrset routine.

19 February 2018: Wouter
- Fix #3505: Documentation for default local zones references
wrong RFC.
- Fix #3494: local-zone noview can be used to break out of the view
to the global local zone contents, for queries for that zone.
- Fix for more maintainable code in localzone.

16 February 2018: Wouter
- Fixes for clang static analyzer, the missing ; in
edns-subnet/addrtree.c after the assert made clang analyzer
produce a failure to analyze it.

13 February 2018: Ralph
- Aggressive NSEC tests

13 February 2018: Wouter
- tls-cert-bundle option in unbound.conf enables TLS authentication.
- iana port update.

12 February 2018: Wouter
- Unit test for auth zone https url download.

12 February 2018: Ralph
- Added tests with wildcard expanded NSEC records (CVE-2017-15105 test)
- Processed aggressive NSEC code review remarks Wouter

8 February 2018: Ralph
- Aggressive use of NSEC implementation. Use cached NSEC records to
generate NXDOMAIN, NODATA and positive wildcard answers.

8 February 2018: Wouter
- iana port update.
- auth zone url config.

5 February 2018: Wouter
- Fix #3451: dnstap not building when you have a separate build dir.
And removed protoc warning, set dnstap.proto syntax to proto2.
- auth-zone provides a way to configure RFC7706 from unbound.conf,
eg. with auth-zone: name: "." for-downstream: no for-upstream: yes
fallback-enabled: yes and masters or a zonefile with data.

2 February 2018: Wouter
- Fix unfreed locks in log and arc4random at exit of unbound.
- unit test with valgrind
- Fix lock race condition in dns cache dname synthesis.
- lock subnet new item before insertion to please checklocks,
no modification of critical regions outside of lock region.

1 February 2018: Wouter
- fix unaligned structure making a false positive in checklock
unitialised memory.

29 January 2018: Ralph
- Use NSEC with longest ce to prove wildcard absence.
- Only use *.ce to prove wildcard absence, no longer names.

25 January 2018: Wouter
- ltrace.conf file for libunbound in contrib.

23 January 2018: Wouter
- Fix that unbound-checkconf -f flag works with auto-trust-anchor-file
for startup scripts to get the full pathname(s) of anchor file(s).
- Print fatal errors about remote control setup before log init,
so that it is printed to console.

22 January 2018: Wouter
- Accept tls-upstream in unbound.conf, the ssl-upstream keyword is
also recognized and means the same. Also for tls-port,
tls-service-key, tls-service-pem, stub-tls-upstream and
forward-tls-upstream.
- Fix #3397: Fix that cachedb could return a partial CNAME chain.
- Fix #3397: Fix that when the cache contains an unsigned DNAME in
the middle of a cname chain, a result without the DNAME could
be returned.

branches: 1.1.1.2.2; 1.1.1.2.4;
Unbound 1.6.8
Download: unbound-1.6.8.tar.gz
SHA1 checksum: 492737be9647c26ee39d4d198f2755062803b412
SHA256 checksum: e3b428e33f56a45417107448418865fe08d58e0e7fea199b855515f60884dd49
PGP signature: unbound-1.6.8.tar.gz.asc
Date: 19 Jan, 2018
Bug Fixes
Fix for CVE-2017-15105: vulnerability in the processing of wildcard synthesized NSEC records.
Older versions
Unbound 1.6.7
Download: unbound-1.6.7.tar.gz
SHA1 checksum: 098f8acfc3e9d1cab54f07863e61eabbb67c80dc
SHA256 checksum: 4e7bd43d827004c6d51bef73adf941798e4588bdb40de5e79d89034d69751c9f
PGP signature: unbound-1.6.7.tar.gz.asc
Date: 10 Oct, 2017
Features
Set trust-anchor-signaling default to yes
#1440: [dnscrypt] client nonce cache.
#1435: Allow UDP to be disabled separately upstream and downstream.
Bug Fixes
Fix that looping modules always stop the query, and don't pass control.
Fix unbound-host to report error for DNSSEC state of failed lookups.
Spelling fixes, from Josh Soref.
Fix #1400: allowing use of global cache on ECS-forwarding unless always-forward.
use a cachedb answer even if it's "expired" when serve-expired is yes (patch from Jinmei Tatuya).
trigger refetching of the answer in that case (this will bypass cachedb lookup)
allow storing a 0-TTL answer from cachedb in the in-memory message cache when serve-expired is yes
Fix DNSCACHE_STORE_ZEROTTL to be bigger than 0xffff.
Log name of looping module
Fix #1450: Generate again patch contrib/aaaa-filter-iterator.patch (by Danilo G. Baio).
Fix param unused warning for windows exportsymbol compile.
Use RCODE from A query on DNS64 synthesized answer.
Fix trust-anchor-signaling works in libunbound.
Fix spelling in unbound-control man page.
Unbound 1.6.6
Download: unbound-1.6.6.tar.gz
SHA1 checksum: d205c03a402f5d900d5bad3d036849a12804a49e
SHA256 checksum: 972b14dc33093e672652a7b2b5f159bab2198b0fe9c9e1c5707e1895d4d4b390
PGP signature: unbound-1.6.6.tar.gz.asc
Date: 18 Sep, 2017
Features
unbound-control dump_infra prints port number for address if not 53.
Fix #1344: RFC6761-reserved domains: test. and invalid.
Fix #1349: allow suppression of pidfiles (from Daniel Kahn Gillmor). With the -p option unbound does not create a pidfile.
Added stats for queries that have been ratelimited by domain recursion.
Patch to show DNSCrypt status in help output, from Carsten Strotmann.
Fix #1407: Add ECS options check to unbound-checkconf.
Fix #1415: [dnscrypt] shared secret cache, patch from Manu Bretelle.
Bug Fixes
fixup of dnscrypt_cert_chacha test (from Manu Bretelle).
First fix for zero b64 and hex text zone format in sldns.
Better fixup of dnscrypt_cert_chacha test for different escapes.
Fix that infra cache host hash does not change after reconfig.
Fix python example0 return module wait instead of error for pass.
enhancement for hardened-tls for DNS over TLS. Removed duplicated security settings.
Fix for unbound-checkconf, check ipsecmod-hook if ipsecmod is turned on.
Fix #1331: libunbound segfault in threaded mode when context is deleted.
Fix pythonmod link line option flag.
Fix openssl 1.1.0 load of ssl error strings from ssl init.
Fix 1332: Bump verbosity of failed chown'ing of the control socket.
Redirect all localhost names to localhost address for RFC6761.
Fix #1350: make cachedb backend configurable (from JINMEI Tatuya).
Fix tests to use .tdir (from Manu Bretelle) instead of .tpkg.
upgrade aclocal(pkg.m4 0.29.1), config.guess(2016-10-02), config.sub(2016-09-05).
annotate case statement fallthrough for gcc 7.1.1.
flex output from flex 2.6.1.
snprintf of thread number does not warn about truncated string.
squelch TCP fast open error on FreeBSD when kernel has it disabled, unless verbosity is high.
remove warning from windows compile.
Fix compile with libnettle
Fix DSA configure switch (--disable dsa) for libnettle and libnss.
Fix #1365: Add Ed25519 support using libnettle.
Fix #1394: mix of serve-expired and response-ip could cause a crash.
Remove unused iter_env member (ip6arpa_dname)
Do not reset rrset.bogus stats when called using stats_noreset.
Do not add rrset_bogus and query ratelimiting stats per thread, these module stats are global.
Fix #1397: Recursive DS lookups for AS112 zones names should recurse.
Fix #1398: make cachedb secret configurable.
Remove spaces from Makefile.
Fix issue on macOX 10.10 where TCP fast open is detected but not implemented causing TCP to fail. The fix allows fallback to regular TCP in this case and is also more robust for cases where connectx() fails for some reason.
Fix #1402: squelch invalid argument error for fd_set_block on windows.
Fix to reclaim tcp handler when it is closed due to dnscrypt buffer allocation failure.
Fix #1415: patch to free dnscrypt environment on reload.
iana portlist update
Small fixes for the shared secret cache patch.
Fix WKS records on kvm autobuild host, with default protobyname entries for udp and tcp.
Fix #1414: fix segfault on parse failure and log_replies.
zero qinfo in handle_request, this zeroes local_alias and also the qname member.
new keys and certs for dnscrypt tests.
fixup WKS test on buildhost without servicebyname.
updated contrib/fastrpz.patch to apply with configparser changes.
Fix 1416: qname-minimisation breaks TLSA lookups with CNAMEs.
Fix #1424: cachedb:testframe is not thread safe.
Fix #1417: [dnscrypt] shared secret cache counters, and works when dnscrypt is not enabled. And cache size configuration option.
Fix #1418: [ip ratelimit] initialize slabhash using ip-ratelimit-slabs.
Recommend 1472 buffer size in unbound.conf
Fix #1412: QNAME minimisation strict mode not honored
Fix #1434: Fix windows openssl 1.1.0 linking.
Add dns64 for client-subnet in unbound-checkconf.
Unbound 1.6.5
Download: unbound-1.6.5.tar.gz
SHA1 checksum: ecb260b94d139d84fae2bff80f9701f53a329e26
SHA256 checksum: e297aa1229015f25bf24e4923cb1dadf1f29b84f82a353205006421f82cc104e
PGP signature: unbound-1.6.5.tar.gz.asc
Date: 21 Aug, 2017
Bug Fixes
Fix install of trust anchor when two anchors are present, makes both valid. Checks hash of DS but not signature of new key. This fixes the root.key file if created when unbound is installed between sep11 and oct11 2017.
Unbound 1.6.4
Download: unbound-1.6.4.tar.gz
SHA1 checksum: 836ecc48518b9159f600a738c276423ef1f95021
SHA256 checksum: df0a88816ec31ccb8284c9eb132e1166fbf6d9cde71fbc4b8cd08a91ee777fed
PGP signature: unbound-1.6.4.tar.gz.asc
Date: 27 Jun, 2017
Features
Implemented trust anchor signaling using key tag query.
unbound-checkconf -o allows query of dnstap config variables. Also unbound-control get_option. Also for dnscrypt.
unbound.h exports the shm stats structures. They use type long long and no ifdefs, and ub_ before the typenames.
Implemented opportunistic IPsec support module (ipsecmod).
Added redirect-bogus.patch to contrib directory.
Support for the ED25519 algorithm with openssl (from openssl 1.1.1).
renumbering B-Root's IPv6 address to 2001:500:200::b.
Fix #1276: [dnscrypt] add XChaCha20-Poly1305 cipher.
Fix #1277: disable domain ratelimit by setting value to 0.
Added fastrpz patch to contrib
Bug Fixes
Added ECS unit test (from Manu Bretelle).
ECS documentation fix (from Manu Bretelle).
Fix #1252: more indentation inconsistencies.
Fix #1253: unused variable in edns-subnet/addrtree.c:getbit().
Fix #1254: clarify ratelimit-{for,below}-domain (from Manu Bretelle).
iana portlist update
Based on #1257: check parse limit before t increment in sldns RR string parse routine.
Fix #1258: Windows 10 X64 unbound 1.6.2 service will not start. and fix that 64bit getting installed in C:\Program Files (x86).
Fix #1259: "--disable-ecdsa" argument overwritten by "#ifdef SHA256_DIGEST_LENGTH@daemon/remote.c".
iana portlist update
Added test for leak of stub information.
Fix sldns wire2str printout of RR type CAA tags.
Fix sldns int16_data parse.
Fix sldns parse and printout of TSIG RRs.
sldns SMIMEA and AVC definitions, same as getdns definitions.
Fix tcp-mss failure printout text.
Set SO_REUSEADDR on outgoing tcp connections to fix the bind before connect limited tcp connections. With the option tcp connections can share the same source port (for different destinations).
Add 'c' to getopt() in testbound.
Adjust servfail by iterator to not store in cache when serve-expired is enabled, to avoid overwriting useful information there.
Fix queries for nameservers under a stub leaking to the internet.
document trust-anchor-signaling in example config file.
updated configure, dependencies and flex output.
better module memory lookup, fix of unbound-control shm names for module memory printout of statistics.
Fix type AVC sldns rrdef.
Some whitespace fixup.
Fix #1265: contrib/unbound.service contains hardcoded path.
Fix #1265 to use /bin/kill.
Fix #1267: Libunbound validator/val_secalgo.c uses obsolete APIs, and compatibility with BoringSSL.
Fix #1268: SIGSEGV after log_reopen.
exec_prefix is by default equal to prefix.
printout localzone for duplicate local-zone warnings.
Fix assertion for low buffer size and big edns payload when worker overrides udpsize.
Support for openssl EVP_DigestVerify.
Fix #1269: inconsistent use of built-in local zones with views.
Add defaults for new local-zone trees added to views using unbound-control.
Fix #1273: cachedb.c doesn't compile with -Wextra.
If MSG_FASTOPEN gives EPIPE fallthrough to try normal tcp write.
Also use global local-zones when there is a matching view that does not have any local-zone specified.
Fix fastopen EPIPE fallthrough to perform connect.
Fix #1274: automatically trim chroot path from dnscrypt key/cert paths (from Manu Bretelle).
Fix #1275: cached data in cachedb is never used.
Fix that unbound-control can set val_clean_additional and val_permissive_mode.
Add dnscrypt XChaCha20 tests.
Detect chacha for dnscrypt at configure time.
dnscrypt unit tests with chacha.
Added domain name based ECS whitelist.
Fix #1278: Incomplete wildcard proof.
Fix #1279: Memory leak on reload when python module is enabled.
Fix #1280: Unbound fails assert when response from authoritative contains malformed qname. When 0x20 caps-for-id is enabled, when assertions are not enabled the malformed qname is handled correctly.
More fixes in depth for buffer checks in 0x20 qname checks.
Fix stub zone queries leaking to the internet for harden-referral-path ns checks.
Fix query for refetch_glue of stub leaking to internet.
Fix #1301: memory leak in respip and tests.
Free callback in edns-subnetmod on exit and restart.
Fix memory leak in sldns_buffer_new_frm_data.
Fix memory leak in dnscrypt config read.
Fix dnscrypt chacha cert support ifdefs.
Fix dnscrypt chacha cert unit test escapes in grep.
Fix to unlock view in view test.
Fix warning in pythonmod under clang compiler.
Fix lintian typo.
Fix #1316: heap read buffer overflow in parse_edns_options.
Unbound 1.6.3
Download: unbound-1.6.3.tar.gz
SHA1 checksum: 4477627c31e8728058565f3bae3a12a1544d8a9c
SHA256 checksum: 4c7e655c1d0d2d133fdeb81bc1ab3aa5c155700f66c9f5fb53fa6a5c3ea9845f
PGP signature: unbound-1.6.3.tar.gz.asc
Date: 13 Jun, 2017
Bug Fixes
Fix #1280: Unbound fails assert when response from authoritative contains malformed qname. When 0x20 caps-for-id is enabled, when assertions are not enabled the malformed qname is handled correctly.
Unbound 1.6.2
Download: unbound-1.6.2.tar.gz
SHA1 checksum: de370b1ac8e260db9c4c1504453752713dd8818f
SHA256 checksum: 1a323d72c32180b7141c9e6ebf199fc68a0208dfebad4640cd2c4c27235e3b9c
PGP signature: unbound-1.6.2.tar.gz.asc
Date: 24 Apr, 2017
Features
Add trustanchor.unbound CH TXT that gets a response with a number of TXT RRs with a string like "example.com. 2345 1234" with the trust anchors and their keytags.
Patch for view functionality for local-data-ptr from Bj��rn Ketelaars.
Response actions based on IP address from Jinmei Tatuya (Infoblox).
Patch from Luiz Fernando Softov for Stats Shared Memory.
unbound-control stats_shm command prints stats using shared memory, which uses less cpu.
--disable-sha1 disables SHA1 support in RRSIG, so from DNSKEY and DS records. NSEC3 is not disabled.
#1217. DNSCrypt support, with --enable-dnscrypt, libsodium and then enabled in the config file from Manu Bretelle.
Merge EDNS Client subnet implementation from feature branch into main branch, using new EDNS processing framework.
harden-algo-downgrade: no also makes unbound more lenient about digest algorithms in DS records.
Bug Fixes
sldns has ED25519 and ED448 algorithm number and name for display.
sldns updated for vfixed and buffer resize indication from getdns.
iana portlist update
Fix #1224: Fix that defaults should not fall back to "Program Files (x86) if Unbound is 64bit by default on windows.
Fix doc/CNAME-basedRedirectionDesignNotes.pdf zone static to redirect.
make depend, autoconf, doxygen and lint fixed up.
include sys/time.h for new shm code on NetBSD.
Fix #1227: Fix that Unbound control allows weak ciphersuits.
Fix #1226: provide official 32bit binary for windows.
For #1227: if we have sha256, set the cipher list to have no known vulns.
Fix testpkts.c, check if DO bit is set, not only if there is an OPT record.
Fix #1229: Systemd service sandboxing in contrib/unbound.service.
Fix #1230: swig version 2.0.1 is required for pythonmod, with 1.3.40 it crashes when running repeatly unbound-control reload.
fix enum conversion warnings
fake-sha1 test option; print warning if used. To make unit tests.
unbound-control list local zone and data commands listed in the help output.
Fix #1234: shortening DNAME loop produces duplicate DNAME records in ANSWER section.
testbound understands Deckard MATCH rcode question answer commands.
Fix #1235: Fix too long DNAME expansion produces SERVFAIL instead of YXDOMAIN + query loop, reported by Petr Spacek.
Fix that SHM is not inited if not enabled.
Fix that looped DNAMEs do not cause unbound to spend effort.
trustanchor tags are sorted. reusable routine to fetch taglist.
Fix #1237 - Wrong resolving in chain, for norec queries that get SERVFAIL returned.
make depend, autoconf, remove warnings about statement before var.
lru_demote and lruhash_insert_or_retrieve functions for getdns.
fixup for lruhash (whitespace and header file comment).
dnscrypt tests.
Fix doxygen for dnscrypt files.
Fix #1238: segmentation fault when adding through the remote interface a per-view local zone to a view with no previous (configured) local zones.
Fix #1229: Systemd service sandboxing, options in wrong sections.
Fix #1239: configure fails to find python distutils if python prints warning.
Fix to prevent non-referal query from being cached as referal when the no_cache_store flag was set.
Remove (now unused) event2 include from dnscrypt code.
Fix #1217: Add metrics to unbound-control interface showing crypted, cert request, plaintext and malformed queries (from Manu Bretelle).
Do not add current time twice to TTL before ECS cache store.
Do not touch rrset cache after ECS cache message generation.
Use LDNS_EDNS_CLIENT_SUBNET as default ECS opcode.
Fix #1244: document that use of chroot requires trust anchor file to be under chroot.
Small fixup for documentation.
Fix respip for braces when locks arent used.
Fix pythonmod for cb changes.
Generalise inplace callback (de)registration
(de)register inplace callbacks for module id
No unbound-control set_option for ECS options
Deprecated client-subnet-opcode config option
Introduced client-subnet-always-forward config option
Changed max-client-subnet-ipv6 default to 56 (as in RFC)
Removed extern ECS config options
module_restart_next now calls clear on all following modules
Also create ECS module qstate on module_event_pass event
remove malloc from inplace_cb_register
Unlock view in respip unit test
Some whitespace fixup.
Remove ECS option after REFUSED answer.
Fix small memory leak in edns_opt_copy_alloc.
Respip dereference after NULL check.
Zero initialize addrtree allocation.
Use correct identifier for SHM destroy.
Display ECS module memory usage.
Fix #1247: unbound does not shorten source prefix length when forwarding ECS.
Properly check for allocation failure in local_data_find_tag_datas.
Fix #1249: unbound doesn't return FORMERR to bogus ECS.
Set SHM ECS memory usage to 0 when module not loaded.
subnet mem value is available in shm, also when not enabled, to make the struct easier to memmap by other applications, independent of the configuration of unbound.
Fix #1250: inconsistent indentation in services/listen_dnsport.c.
Unbound 1.6.1
Download: unbound-1.6.1.tar.gz
SHA1 checksum: 41369fcfd37844b02b7293b37ec78e69f0db34c7
SHA256 checksum: 42df63f743c0fe8424aeafcf003ad4b880b46c14149d696057313f5c1ef51400
PGP signature: unbound-1.6.1.tar.gz.asc
Date: 21 Feb, 2017
Features
configure --enable-systemd and lets unbound use systemd sockets if you enable use-systemd: yes in unbound.conf. Also there are contrib/unbound.socket and contrib/unbound.service: systemd files for unbound, install them in /usr/lib/systemd/system. Contributed by Sami Kerola and Pavel Odintsov.
[bugzilla: 1187 ]
Source IP rate limiting, patch from Larissa Feng.
[bugzilla: 1184 ]
Log DNS replies. This includes the same logging information that DNS queries and response code and response size, patch from Larissa Feng.
Include root trust anchor id 20326 in unbound-anchor.
64bit is default for windows builds.
Bug Fixes
[bugzilla: 1176 ]
Fix stack size too small for Alpine Linux.
Fix unbound-control and ipv6 only.
[bugzilla: 1182 ]
Fix Resource leak (socket), at startup.
[bugzilla: 1178 ]
Fix attempt to fix setup error at end, pop result values at end of install.
iana portlist update
Fix inet_ntop and inet_pton warnings in windows compile.
[bugzilla: 1191 ]
Fix remove comment about view deletion.
[bugzilla: 1188 ]
Fix unresolved symbol 'fake_dsa' in libunbound.so when built with Nettle
[bugzilla: 1190 ]
Fix to not echo back EDNS options in local-zone error response.
[bugzilla: 1194 ]
Fix if cross build fails when $host isn't `uname` for getentropy.
Fix reload chdir failure when also chrooted to that directory.
Fix to return formerr for queries for meta-types, to avoid packet amplification if this meta-type is sent on to upstream.
[bugzilla: 1201 ]
Fix missing unlock in answer_from_cache error condition.
[bugzilla: 1202 ]
Fix code comment that packed_rrset_data is not always 'packed'.
Fix to also block meta types 128 through to 248 with formerr.
[bugzilla: 1206 ]
Fix that some view-related commands are missing from 'unbound-control -h'
Fix to rename ub_callback_t to ub_callback_type, because POSIX reserves _t typedefs.
Fix to rename internally used types from _t to _type, because _t type names are reserved by POSIX.
Increase MAX_MODULE to 16.
[bugzilla: 1211 ]
Fix can't enable interface-automatic if no IPv6 with more helpful error message.
fix root_anchor test for updated icannbundle.pem lower certificates.
Fix compile on solaris of the fix to use $host detect.
Fix for type name change and fix warning on windows compile.
Fix pythonmod for typedef changes.
Fix dnstap for warning of set but not used.
Fix autoconf of systemd check for lack of pkg-config.
Unbound 1.6.0
Download: unbound-1.6.0.tar.gz
SHA1 checksum: 9b7606b016b447dc837efc108cee94f3fecf4ede
SHA256 checksum: 6b7db874e6debda742fee8869d722e5a17faf1086e93c911b8564532aeeffab7
PGP signature: unbound-1.6.0.tar.gz.asc
Date: 15 Dec, 2016
Features
Added generic EDNS code for registering known EDNS option codes, bypassing the cache response stage and uniquifying mesh states. Four EDNS option lists were added to module_qstate (module_qstate.edns_opts_*) to store EDNS options from/to front/back side.
Added two flags to module_qstate (no_cache_lookup, no_cache_store) that control the modules' cache interactions.
Added code for registering inplace callback functions. The registered functions can be called just before replying with local data or Chaos, replying from cache, replying with SERVFAIL, replying with a resolved query, sending a query to a nameserver. The functions can inspect the available data and maybe change response/query related data (i.e. append EDNS options).
Updated Python module for the above.
Updated Python documentation.
Added views functionality.
Added qname-minimisation-strict config option.
Patch that resolves CNAMEs entered in local-data conf statements that point to data on the internet, from Jinmei Tatuya (Infoblox).
serve-expired config option: serve expired responses with TTL 0.
.gitattributes line for githubs code language display.
log-identity: config option to set sys log identity, patch from "Robin H. Johnson" (robbat2@gentoo.org).
Added stub-ssl-upstream and forward-ssl-upstream options.
Added local-zones and local-data bulk addition and removal functionality in unbound-control (local_zones, local_zones_remove, local_datas and local_datas_remove).
Bug Fixes
Fix #836: unbound could echo back EDNS options in an error response.
Fix #838: 1.5.10 cannot be built on Solaris, undefined PATH_MAX.
Fix #839: Memory grows unexpectedly with large RPZ files.
Fix #840: infinite loop in unbound_munin_ plugin on unowned lockfile.
Fix #841: big local-zone's make it consume large amounts of memory.
Fix dnstap relaying "random" messages instead of resolver/forwarder responses, from Nikolay Edigaryev.
Fix Nits for 1.5.10 reported by Dag-Erling Smorgrav.
Fix #1117: spelling errors, from Robert Edmonds.
iana portlist update.
fix memoryleak logfile when in debug mode.
Re-fix #839 from view commit overwrite.
Fixup const void cast warning.
Removed patch comments from acllist.c and msgencode.c
Added documentation doc/CNAME-basedRedirectionDesignNotes.pdf, from Jinmei Tatuya (Infoblox).
Fix #1125: unbound could reuse an answer packet incorrectly for clients with different EDNS parameters, from Jinmei Tatuya.
Fix #1118: libunbound.pc sets strange Libs, Libs.private values.
Added Requires line to libunbound.pc
Fix #1130: whitespace in example.conf.in more consistent.
suppress compile warning in lex files.
init lzt variable, for older gcc compiler warnings.
fix --enable-dsa to work, instead of copying ecdsa enable.
Fix DNSSEC validation of query type ANY with DNAME answers.
Fixup query_info local_alias init.
Ported tests for local_cname unit test to testbound framework.
g.root-servers.net has AAAA address.
Fix #1134: unbound-control set_option -- val-override-date: -1 works immediately to ignore datetime, or back to 0 to enable it again. The -- is to ignore the '-1' as an option flag.
Patch for server.num.zero_ttl stats for count of expired replies, from Pavel Odintsov.
Fix failure to build on arm64 with no sbrk.
Set OpenSSL security level to 0 when using aNULL ciphers.
configure detects ssl security level API function in the autoconf manner. Every function on its own, so that other libraries (eg. LibreSSL) can develop their API without hindrance.
Fix #1154: segfault when reading config with duplicate zones.
Note that for harden-below-nxdomain the nxdomain must be secure, this means nsec3 with optout is insufficient.
Fix #1155: test status code of unbound-control in 04-checkconf, not the status code from the tee command.
Fix #1158: reference RFC 8020 "NXDOMAIN: There Really Is Nothing Underneath" for the harden-below-nxdomain option.
patch from Dag-Erling Smorgrav that removes code that relies on sbrk().
Make access-control-tag-data RDATA absolute. This makes the RDATA origin consistent between local-data and access-control-tag-data.
Fix NSEC ENT wildcard check. Matching wildcard does not have to be a subdomain of the NSEC owner.
QNAME minimisation uses QTYPE=A, therefore always check cache for this type in harden-below-nxdomain functionality.
Added unit test for QNAME minimisation + harden below nxdomain synergy.
Fix that with openssl 1.1 control-use-cert: no uses less cpu, by using no encryption over the unix socket.
hyphen as minus fix, by Andreas Schulze
Fix #1170: document that 'inform' local-zone uses local-data.
Fix #1173: differ local-zone type deny from unset tag_actions element.
Add DSA support for OpenSSL 1.1.0
Fix remote control without cert for LibreSSL
Fix downcast warnings from visual studio in sldns code.
Unbound 1.5.10
Download: unbound-1.5.10.tar.gz
SHA1 checksum: 6102849c400db3a4195b1f16df8f312568a6ec57
SHA256 checksum: a39b8b4fcca2a2b35a2daa53fe35150cc3f09038dc9acede09c912fc248a9486
PGP signature: unbound-1.5.10.tar.gz.asc
Date: 27 Sep, 2016
Features
Create a pkg-config file for libunbound in contrib.
TCP Fast open patch from Sara Dickinson.
Finegrained localzone control with define-tag, access-control-tag, access-control-tag-action, access-control-tag-data, local-zone-tag, and local-zone-override. And added types always_transparent, always_refuse, always_nxdomain with that.
If more than half of tcp connections are in use, a shorter timeout is used (200 msec, vs 2 minutes) to pressure tcp for new connects.
[bugzilla: 787 ]
Fix #787: outgoing-interface netblock/64 ipv6 option to use linux freebind to use 64bits of entropy for every query with random local part.
For #787: prefer-ip6 option for unbound.conf prefers to send upstream queries to ipv6 servers.
Add default root hints for IPv6 E.ROOT-SERVERS.NET, 2001:500:a8::e.
keep debug symbols in windows build.
Bug Fixes
[bugzilla: 778 ]
Fix unbound 1.5.9: -h segfault (null deref).
Fix unbound-anchor.exe file location defaults to Program Files with (x86) appended.
Fix to not ignore return value of chown() in daemon startup.
Better help text from -h (from Ray Griffith).
[bugzilla: 773 ]
Fix Non-standard Python location build failure with pyunbound.
Improve threadsafety for openssl 0.9.8 ecdsa dnssec signatures.
Revert fix for NetworkService account on windows due to breakage it causes.
Fix that windows install will not overwrite existing service.conf file (and ignore gui config choices if it exists).
And delete service.conf.shipped on uninstall.
In unbound.conf directory: dir immediately changes to that directory, so that include: file below that is relative to that directory. With chroot, make the directory an absolute path inside chroot.
do not delete service.conf on windows uninstall.
document directory immediate fix and allow EXECUTABLE syntax in it on windows.
Fix directory: fix for unbound-checkconf, it restores cwd.
Use QTYPE=A for QNAME minimisation.
Keep track of number of time-outs when performing QNAME minimisation. Stop minimising when number of time-outs for a QNAME/QTYPE pair is more than three.
[bugzilla: 775 ]
Fix unbound-host and unbound-anchor crash on windows, ignore null delete for wsaevent.
Fix spelling in freebind option man page text.
Fix windows link of ssl with crypt32.
[bugzilla: 779 ]
Fix Union casting is non-portable.
[bugzilla: 780 ]
Fix MAP_ANON not defined in HP-UX 11.31.
[bugzilla: 781 ]
Fix prealloc() is an HP-UX system library call.
Decrease dp attempts at each QNAME minimisation iteration
[bugzilla: 784 ]
Fix Build configure assumess that having getpwnam means there is endpwent function available.
Updated repository with newer flex and bison output.
Fix static compile on windows missing gdi32.
Fix dynamic link of anchor-update.exe on windows.
Fix detect of mingw for MXE package build.
Fixes for 64bit windows compile.
[bugzilla: 788 ]
Fix for nettle 3.0: Failed to build with Nettle >= 3.0 and --with-libunbound-only --with-nettle.
Fixed unbound.doxygen for 1.8.11.
[bugzilla: 798 ]
Fix Client-side TCP fast open fails (Linux).
[bugzilla: 801 ]
Fix missing error condition handling in daemon_create_workers().
[bugzilla: 802 ]
Fix workaround for function parameters that are "unused" without log_assert.
[bugzilla: 803 ]
Fix confusing (and incorrect) code comment in daemon_cleanup().
[bugzilla: 806 ]
Fix wrong comment removed.
use sendmsg instead of sendto for TFO.
[bugzilla: 807 ]
Fix workaround for possible some "unused" function parameters in test code, from Jinmei Tatuya.
Note that OPENPGPKEY type is RFC 7929.
[bugzilla: 804 ]
Fix #804: unbound stops responding after outage. Fixes queries that attempt to wait for an empty list of subqueries.
Fix for #804: lower num_target_queries for iterator also for failed lookups.
[bugzilla: 820 ]
Fix set sldns_str2wire_rr_buf() dual meaning len parameter in each iteration in find_tag_datas().
[bugzilla: 777 ]
Fix OpenSSL 1.1.0 compatibility, patch from Sebastian A. Siewior.
RFC 7958 is now out, updated docs for unbound-anchor.
Fix for compile without warnings with openssl 1.1.0.
[bugzilla: 826 ]
Fix refuse_non_local could result in a broken response.
iana portlist update.
Fix compile with openssl 1.1.0 with api=1.1.0.
[bugzilla: 829 ]
Fix doc of sldns_wire2str_rdata_buf() return value has an off-by-one typo, from Jinmei Tatuya (Infoblox).
Fix incomplete prototypes reported by Dag-Erling Sm��rgrav.
[bugzilla: 828 ]
Fix missing type in access-control-tag-action redirect results in NXDOMAIN.
Take configured minimum TTL into consideration when reducing TTL to original TTL from RRSIG.
[bugzilla: 831 ]
Fix workaround for spurious fread_chk warning against petal.c
Silenced flex-generated sign-unsigned warning print with gcc diagnostic pragma.
Fix for new splint on FreeBSD. Fix cast for sockaddr_un.sun_len.
fix potential memory leak in daemon/remote.c and nullpointer dereference in validator/autotrust.
[bugzilla: 883 ]
Fix error for duplicate local zone entry.
[bugzilla: 835 ]
Fix --disable-dsa with nettle verify.

branches: 1.1.1.1.2; 1.1.1.1.8;
Import unbound 1.5.9

Import unbound-1.16.3; last import was 1.13.1

21 September 2022: Wouter
- Patch for CVE-2022-3204 Non-Responsive Delegation Attack.
- This patch was released in 1.16.3, the code repository continues
with the previous features and fixes for 1.17.0.
- Fix doxygen warning in respip.h.

20 September 2022: George
- Convert tdir tests to use the new skip_test functionality.
- Remove unused testcode/mini_tpkg.sh file.

16 September 2022: George
- Merge #753: ACL per interface. (New interface-* configuration
options).

2 September 2022: Wouter
- Remove include that was there for debug purposes.
- Fix to check pthread_t size after pthread has been detected.

1 September 2022: Wouter
- Fix to update config tests to fix checking if nonblocking sockets
work on OpenBSD.
- Slow down log frequency of write wait failures.
- Fix to set out of file descriptor warning to operational verbosity.
- Fix to log a verbose message at operational notice level if a
thread is not responding, to stats requests. It is logged with
thread identifiers.

31 August 2022: Wouter
- Fix to avoid process wide fcntl calls mixed with nonblocking
operations after a blocked write.
- Patch from Vadim Fedorenko that adds MSG_DONTWAIT to receive
operations, so that instruction reordering does not cause mistakenly
blocking socket operations.
- Fix to wait for blocked write on UDP sockets, with a timeout if it
takes too long the packet is dropped.
- Fix for wait for udp send to stop when packet is successfully sent.

22 August 2022: Wouter
- Fix #741: systemd socket activation fails on IPv6.

12 August 2022: Wouter
- Fix to log accept error ENFILE and EMFILE errno, but slowly, once
per 10 seconds. Also log accept failures when no slow down is used.

5 August 2022: Wouter
- Fix #734 [FR] enable unbound-checkconf to detect more (basic)
errors.

4 August 2022: Wouter
- Fix ratelimit inconsistency, for ip-ratelimits the value is the
amount allowed, like for ratelimits.

2 August 2022: Wouter
- Fix edns subnet so that scope 0 answers only match sourcemask 0
queries for answers from cache if from a query with sourcemask 0.
- Fix unittest for edns subnet change.
- Merge #730 from luisdallos: Fix startup failure on Windows 8.1 due
to unsupported IPV6_USER_MTU socket option being set.

1 August 2022: Wouter
- Fix the novel ghost domain issues CVE-2022-30698 and CVE-2022-30699.
- Tests for ghost domain fixes.
- Tag for 1.16.2 release. The code repo continues with 1.16.3.
- Fix #728: alloc_reg_obtain() core dump. Stop double
alloc_reg_release when serviced_create fails.

19 July 2022: George
- Update documentation for 'outbound-msg-retry:'.

19 July 2022: Wouter
- Merge #718: Introduce infra-cache-max-rtt option to config max
retransmit timeout.

15 July 2022: Wouter
- Merge PR 714: Avoid treat normal hosts as unresponsive servers.
And fixup the lock code.
- iana portlist update.

12 July 2022: George
- For windows crosscompile, fix setting the IPV6_MTU socket option
equivalent (IPV6_USER_MTU); allows cross compiling with latest
cross-compiler versions.

12 July 2022: Wouter
- Fix dname count in sldns parse type descriptor for SVCB and HTTPS.

11 July 2022: Wouter
- Fix verbose EDE error printout.

4 July 2022: George
- Fix bug introduced in 'improve val_sigcrypt.c::algo_needs_missing for
one loop pass'.
- Merge PR #668 from Cristian Rodr�guez: Set IP_BIND_ADDRESS_NO_PORT on
outbound tcp sockets.

4 July 2022: Wouter
- Tag for 1.16.1rc1 release. This became 1.16.1 on 11 July 2022.
The code repo continues with version 1.16.2 under development.

3 July 2022: George
- Merge PR #671 from Petr Men#�k: Disable ED25519 and ED448 in FIPS
mode on openssl3.
- Merge PR #660 from Petr Men#�k: Sha1 runtime insecure.
- For #660: formatting, less verbose logging, add EDE information.
- Fix for correct openssl error when adding windows CA certificates to
the openssl trust store.
- Improve val_sigcrypt.c::algo_needs_missing for one loop pass.
- Reintroduce documentation and more EDE support for
val_sigcrypt.c::dnskeyset_verify_rrset_sig.

1 July 2022: George
- Merge PR #706: NXNS fallback.
- From #706: Cached NXDOMAIN does not increase the target nx
responses.
- From #706: Don't generate parent side queries if we already
have the lame records in cache.
- From #706: When a lame address is the best choice, don't try to
generate target queries when the missing targets are all lame.

29 June 2022: Wouter
- iana portlist update.
- Fix detection of libz on windows compile with static option.
- Fix compile warning for windows compile.

29 June 2022: George
- Add debug option to the mini_tdir.sh test code.
- Fix #704: [FR] Statistics counter for number of outgoing UDP queries
sent; introduces 'num.query.udpout' to the 'unbound-control stats'
command.
- Fix to not count cached NXDOMAIN for MAX_TARGET_NX.
- Allow fallback to the parent side when MAX_TARGET_NX is reached.
This will also allow MAX_TARGET_NX more NXDOMAINs.

28 June 2022: George
- Show the output of the exact .rpl run that failed with 'make test'.
- Fix for cached 0 TTL records to not trigger prefetching when
serve-expired-client-timeout is set.

28 June 2022: Wouter
- Fix test program dohclient close to use portability routine.

23 June 2022: Tom
- Clarify -v flag manpage entry (#705)

22 June 2022: Philip
- Fix #663: use after free issue with edns options.

21 June 2022: Philip
- Fix for loading locally stored zones that have lines with blanks or
blanks and comments.

20 June 2022: George
- Remove unused LDNS function check for GOST Engine unloading.

14 June 2022: George
- Merge PR #688: Rpz url notify issue.
- Note in the unbound.conf text that NOTIFY is allowed from the url:
addresses for auth and rpz zones.

3 June 2022: George
- Fix for edns client subnet to respect not looking in its cache when
instructed to do so (e.g., prefetch).

3 June 2022: Wouter
- makedist.sh picks up 32bit libssp-0.dll when 32bit compile.

27 May 2022: Wouter
- Fix #684: [FTBS] configure script error with libmnl on openSUSE 15.3 (and possibly other distributions)
- Version is set to 1.16.0 for release. Release tag 1.16.0rc1. This
became release 1.16.0 on 2 June 2022. The source code branch
continues with version 1.16.1 under development.

20 May 2022: Wouter
- Fix to silence test for ede error output to the console from the
test setup script.
- Fix ede test to not use default pidfile, and use local interface.
- Fix some lint type warnings.

18 May 2022: George
- Fix typos in config_set_option for the 'num-threads' and
'ede-serve-expired' options.

15 May 2022: George
- Fix #678: [FR] modify behaviour of unbound-control rpz_enable zone,
by updating unbound-control's documentation.

12 May 2022: George
- Fix #417: prefetch and ECS causing cache corruption when used
together.

12 May 2022: Wouter
- Merge #677: Allow using system certificates not only on Windows,
from pemensik.
- For #677: Added tls-system-cert to config parser and documentation.

11 May 2022: Wouter
- Fix #673: DNS over TLS: error: SSL_handshake syscall: No route to
host.

10 May 2022: George
- Fix Python build in non-source directory; based on patch by
Michael Tokarev.

6 May 2022: Tom
- Merge PR #604: Add basic support for EDE (RFC8914).

28 April 2022: Wouter
- Fix #670: SERVFAIL problems with unbound 1.15.0 running on
OpenBSD 7.1.

8 April 2022: Wouter
- Fix zonemd check to allow unsupported algorithms to load.
If there are only unsupported algorithms, or unsupported schemes,
and no failed or successful other ZONEMD records, or malformed
or bad ZONEMD records, the unsupported records allow the zone load.
- Fix zonemd unsupported algo check.
- Fix zonemd unsupported algo check reason to not copy to next record,
and check for success for debug printout.
- Fix zonemd unsupported algo check to print unsupported reason before
zeroing it.
- Fix zonemd unsupported algo check to set reason to NULL before the
check routine, but after malformed checks, to get the correct NULL
output when the digest matches.

25 March 2022: Wouter
- Fix spelling error in comment in sldns_str2wire_svcparam_key_lookup.

23 March 2022: Wouter
- Fix #651: [FR] Better logging for refused queries.

18 March 2022: George
- Merge PR #648 from eaglegai: fix -q doesn't work when use with
'unbound-control stats_shm'.

17 March 2022: Wouter
- Fix to describe auth-zone and other configuration at the local-zone
configuration option, to allow for more broadly view of the options.

16 March 2022: Wouter
- Fix to ensure uniform handling of spaces and tabs when parsing RRs.

9 March 2022: Wouter
- Merge #644: Make `install-lib` make target install the pkg-config
file.

7 March 2022: Wouter
- Fix configure for python to use sysutils, because distutils is
deprecated. It uses sysutils when available, distutils otherwise.

3 March 2022: Wouter
- Fix #637: Integer Overflow in sldns_str2period function.
- Fix for #637: fix integer overflow checks in sldns_str2period.

2 March 2022: George
- Merge PR #632 from scottrw93: Match cnames in ipset.
- Various fixes for #632: variable initialisation, convert the qinfo
to str once, accept trailing dot in the local-zone ipset option.

2 March 2022: Wouter
- Fix compile warnings for printf ll format on mingw compile.

1 March 2022: Wouter
- Fix pythonmod for change in iter_dp_is_useless function prototype.

28 February 2022: George
- Fix #630: Unify the RPZ log messages.
- Merge #623 from rex4539: Fix typos.

28 February 2022: Wouter
- Fix #633: Document unix domain socket support for unbound-control.
- Fix for #633: updated fix with new text.
- Fix edns client subnet to add the option based on the option list,
so that it is not state dependent, after the state fix of #605 for
double EDNS options.
- Fix for edns client subnet option add fix in removal code, from review.

25 February 2022: Wouter
- Fix to detect that no IPv6 support means that IPv6 addresses are
useless for delegation point lookups.
- update Makefile dependencies.
- Fix check interface existence for support detection in remote lookup.

18 February 2022: Wouter
- Fix that address not available is squelched from the logs for
udp connect failures. It is visible on verbosity 4 and more.
- Merge #631 from mollyim: Replace OpenSSL's ERR_PACK with
ERR_GET_REASON.

16 February 2022: Wouter
- Fix for #628: fix rpz-passthru for qname trigger by localzone type.

15 February 2022: Wouter
- Fix #628: A rpz-passthru action is not ending RPZ zone processing.

11 February 2022: Wouter
- Fix #624: Unable to stop Unbound in Windows console (does not
respond to CTRL+C command).
- Fix #618: enabling interface-automatic disables DNS-over-TLS.
Adds the option to list interface-automatic-ports.
- Remove debug info from #618 fix.

7 February 2022: Wouter
- Fix that TCP interface does not use TLS when TLS is also configured.

4 February 2022: Wouter
- Fix #412: cache invalidation issue with CNAME+A.

3 February 2022: Wouter
- Fix for #611: Integer overflow in sldns_wire2str_pkt_scan.
- Tag for 1.15.0rc1 created. That became 1.15.0 on 10 feb 2022.
The repository continues with version 1.15.1.

2 February 2022: George
- Merge PR #532 from Shchelk: Fix: buffer overflow bug.
- Merge PR #616: Update ratelimit logic. It also introduces
ratelimit-backoff and ip-ratelimit-backoff configuration options.
- Change aggressive-nsec default to yes.
- Merge PR #617: Update stub/forward-host notation to accept port and
tls-auth-name.
- Update stream_ssl.tdir test to also use the new forward-host
notation.

2 February 2022: Wouter
- Update version number in repo to 1.15.0 for upcoming release,
since it changes the aggressive-nsec default and the ratelimit change.
- Fix header comment for doxygen for authextstrtoaddr.
- please clang analyzer for loop in test code.
- Fix docker splint test to use more portable uname.
- Update contrib/aaaa-filter-iterator.patch with diff for current
software version.

1 February 2022: George
- Merge PR #603 from fobser: Use OpenSSL 1.1 API to access DSA and RSA
internals.

31 January 2022: George
- Fix review comment for use-after-free when failing to send UDP out.

31 January 2022: Wouter
- iana portlist update.

29 January 2022: George
- Fix tls-* and ssl-* documented alternate syntax to also be available
through remote-control and unbound-checkconf.
- Better cleanup on failed DoT/DoH listening socket creation.

26 January 2022: George
- Fix #599: [FR] RFC 9156 (obsoletes RFC 7816), by noting the new RFC
document.

26 January 2022: Wouter
- Test for NSID in SERVFAIL response due to DNSSEC bogus.

25 January 2022: George
- Fix #588: Unbound 1.13.2 crashes due to p->pc is NULL in
serviced_udp_callback.
- Merge PR #612: TCP race condition.

25 January 2022: Wouter
- Fix #610: Undefine-shift in sldns_str2wire_hip_buf.

19 January 2022: George
- For dnstap, do not wakeupnow right there. Instead zero the timer to
force the wakeup callback asap.

14 January 2022: George
- Merge PR #605:
- Fix EDNS to upstream where the same option could be attached
more than once.
- Add a region to serviced_query for allocations.

14 January 2022: Wouter
- Add rpz: for-downstream: yesno option, where the RPZ zone is
authoritatively answered for, so the RPZ zone contents can be
checked with DNS queries directed at the RPZ zone.
- For #602: Allow the module-config "subnetcache validator cachedb
iterator".

11 January 2022: George
- Fix prematurely terminated TCP queries when a reply has the same ID.

7 January 2022: Wouter
- Merge #600 from pemensik: Change file mode before changing file
owner.

5 January 2022: Wouter
- Fix for #596: fix that rpz return message is returned and not just
the rcode from the iterator return path. This fixes signal unset RA
after a CNAME.
- Fix unit tests for rpz now that the AA flag returns successfully from
the iterator loop.
- Fix for #596: add unit test for nsdname trigger and signal unset RA.
- Fix for #596: add unit test for nsip trigger and signal unset RA.
- Fix #598: Fix unbound-checkconf fatal error: module conf
'respip dns64 validator iterator' is not known to work.
- Fix for #596: Fix rpz-signal-nxdomain-ra to work for clientip
triggered operation.

4 January 2022: Wouter
- Fix #596: unset the RA bit when a query is blocked by an unbound
RPZ nxdomain reply. The option rpz-signal-nxdomain-ra allows to
signal that a domain is externally blocked to clients when it
is blocked with NXDOMAIN by unsetting RA.
- Fix to add test for rpz-signal-nxdomain-ra.
- Fix #596: only unset RA when NXDOMAIN is signalled.
- Fix that RPZ does not set RD flag on replies, it should be copied
from the query.

22 December 2021: George
- contrib/aaaa-filter-iterator.patch file renewed diff content to
apply cleanly to the current coderepo for the current code version.

20 December 2021: George
- Fix #591: Unbound-anchor manpage links to non-existent license file.

13 December 2021: George
- Add missing configure flags for optional features in the
documentation.
- Fix Unbound capitalization in the documentation.

13 December 2021: Wouter
- Fix to pick up other class local zone information before unlock.

10 December 2021: George
- Allow local-data for classes other than IN to inherit a configured
local-zone's type if possible, instead of defaulting to type
transparent as per the implicit rule.

10 December 2021: Wouter
- Add code similar to fix for ldns for tab between strings, for
consistency, the test case was not broken.

6 December 2021: Wouter
- Merge PR #581 from fobser: Fix -Wmissing-prototypes and -Wshadow
warnings in rpz.
- Fix validator debug output about DS support, print correct algorithm.

3 December 2021: Wouter
- Fix compile warning for if_nametoindex on windows 64bit.

1 December 2021: Wouter
- configure is set to 1.14.0, and release branch.
This was released as version 1.14.0 on 9 Dec 2021, with the doxygen
fix below included. The main branch continues as 1.14.1.
- Fix doc/unbound.doxygen to remove obsolete tag warning.

1 December 2021: George
- Merge PR #511 from yan12125: Reduce unnecessary linking.
- Merge PR #493 from Jaap: Fix generation of libunbound.pc.
- Merge PR #555 from fobser: Allow interface names as scope-id in IPv6
link-local addresses.
- Merge PR #562 from Willem: Reset keepalive per new tcp session.
- Merge PR #522 from sibeream: memory management violations fixed.
- Merge PR #530 from Shchelk: Fix: dereferencing a null pointer.
- Fix #454: listen_dnsport.c:825: error: `IPV6_TCLASS' undeclared.
- Fix #574: Review fixes for size allocation.

30 November 2021: Wouter
- Fix to remove git tracking and ci information from release tarballs.
- iana portlist update.

29 November 2021: Wouter
- Merge PR #570 from rex4539: Fix typos.
- Fix for #570: regen aclocal.m4, fix configure.ac for spelling.
- Fix to make python module opt_list use opt_list_in.
- Fix #574: unbound-checkconf reports fatal error if interface names
are used as value for interfaces:
- Fix #574: Review fixes for it.
- Fix #576: [FR] UB_* error codes in unbound.h
- Fix #574: Review fix for spelling.

15 November 2021: Tom
- Improve EDNS option handling, now also works for synthesised
responses such as local-data and server.id CH TXT responses.

5 November 2021: George
- Fix for #558: fix loop in comm_point->tcp_free when a comm_point is
reclaimed more than once during callbacks.
- Fix for #558: clear the UB_EV_TIMEOUT bit before adding an event.

5 November 2021: Wouter
- Fix that forward-zone name is documented as the full name of the
zone. It is not relative but a fully qualified domain name.
- Fix analyzer review failure in rpz action override code to not
crash on unlocking the local zone lock.
- Fix to remove unused code from rpz resolve client and action
function.
- Merge #565: unbound.service.in: Disable ProtectKernelTunables again.

2 November 2021: Wouter
- Fix #552: Unbound assumes index.html exists on RPZ host.

11 October 2021: Wouter
- Fix chaos replies to have truncation for short message lengths,
or long reply strings.
- Fix to protect custom regional create against small values.

4 October 2021: Wouter
- Fix to add example.conf note for outbound-msg-retry.

27 September 2021: Wouter
- Implement RFC8375: Special-Use Domain 'home.arpa.'.

21 September 2021: Wouter
- For crosscompile on windows, detect 64bit stackprotector library.
- Fix crosscompile shell syntax.
- Fix crosscompile windows to use libssp when it exists.
- For the windows compile script disable gost.
- Fix that on windows, use BIO_set_callback_ex instead of deprecated
BIO_set_callback.
- Fix crosscompile script for the shared build flags.

20 September 2021: Wouter
- Fix crosscompile on windows to work with openssl 3.0.0 the
link with ws2_32 needs -l:libssp.a for __strcpy_chk.
Also copy results from lib64 directory if needed.

10 September 2021: Wouter
- Fix initialisation errors reported by gcc sanitizer.
- Fix lock debug code for gcc sanitizer reports.
- Fix more initialisation errors reported by gcc sanitizer.

8 September 2021: Wouter
- Merged #41 from Moritz Schneider: made outbound-msg-retry
configurable.
- Small fixes for #41: changelog, conflicts resolved,
processQueryResponse takes an iterator env argument like other
functions in the iterator, no colon in string for set_option,
and some whitespace style, to make it similar to the rest.
- Fix for #41: change outbound retry to int to fix signed comparison
warnings.
- Fix root_anchor test to check with new icannbundle date.

3 September 2021: Wouter
- Fix #538: Fix subnetcache statistics.

1 September 2021: Wouter
- Fix tcp fastopen failure when disabled, try normal connect instead.

27 August 2021: Wouter
- Fix #533: Negative responses get cached even when setting
cache-max-negative-ttl: 1

25 August 2021: Wouter
- Merge #401: RPZ triggers. This add additional RPZ triggers,
unbound supports a full set of rpz triggers, and this now
includes nsdname, nsip and clientip triggers. Also actions
are fully supported, and this now includes the tcp-only action.
- Fix #536: error: RPZ: name of record (drop.spamhaus.org.rpz.local.)
to insert into RPZ.
- Fix the stream wait stream_wait_count_lock and http2 buffer locks
setup and desetup from race condition.
- Fix RPZ locks. Do not unlock zones lock if requested and rpz find
zone does not find the zone. Readlock the clientip that is found
for ipbased triggers. Unlock the nsdname zone lock when done.
Unlock zone and ip in rpz nsip and nsdname callback. Unlock
authzone and localzone if clientip found in rpz worker call.
- Fix compile warning in libunbound for listen desetup routine.
- Fix asynclook unit test for setup of lockchecks before log.

20 August 2021: Wouter
- Fix #529: Fix: log_assert does nothing if UNBOUND_DEBUG is
undefined.
- Fix #531: Fix: passed to proc after free.

17 August 2021: Wouter
- Fix that --with-ssl can use "/usr/include/openssl11" to pass the
location of a different openssl version.
- Fix #527: not sending quad9 cert to syslog (and may be more).
- Fix sed script in ssldir split handling.

16 August 2021: George
- Merge PR #528 from fobser: Make sldns_str2wire_svcparam_buf()
static.

16 August 2021: Wouter
- Fix to support harden-algo-downgrade for ZONEMD dnssec checks.

13 August 2021: Wouter
- Support using system-wide crypto policies.
- Fix for #431: Squelch permission denied errors for udp connect,
and udp send, they are visible at higher verbosity settings.
- Fix zonemd verification of key that is not in DNS but in the zone
and needs a chain of trust.
- zonemd, fix order of bogus printout string manipulation.

12 August 2021: George
- Merge PR #514, from ziollek: Docker environment for run tests.
- For #514: generate configure.

12 August 2021: Wouter
- And 1.13.2rc1 became the 1.13.2 with the fix for the python module
build. The current code repository continues with version 1.13.3.
- Add test tool readzone to .gitignore.
- Merge #521: Update mini_event.c.
- Merge #523: fix: free() call more than once with the same pointer.
- Merge #519: Support for selective enabling tcp-upstream for
stub/forward zones.
- For #519: note stub-tcp-upstream and forward-tcp-upstream in
the example configuration file.
- For #519: yacc and lex. And fix python bindings, and test program
unbound-dnstap-socket.
- For #519: fix comments for doxygen.
- Fix to print error from unbound-anchor for writing to the key
file, also when not verbose.

5 August 2021: Wouter
- Tag for 1.13.2rc1 release.
- Fix #520: Unbound 1.13.2rc1 fails to build python module.

4 August 2021: George
- Merge PR #415 from sibeream: Use
/proc/sys/net/ipv4/ip_local_port_range to determine available outgoing
ports. (New --enable-linux-ip-local-port-range configuration option)
- Bump MAX_RESTART_COUNT to 11 from 8; in relation to #438. This
allows longer CNAME chains in Unbound.

4 August 2021: Wouter
- In unit test use openssl set security level to allow keys in test.
- Fix static analysis warnings about localzone locks that are unused.
- Fix missing locks in zonemd unit test.
- Fix readzone compile under debug config.
- Fix out of sourcedir run of zonemd unit tests.
- Fix libnettle zonemd unit test.
- Fix unit test zonemd_reload for use in run_vm.

3 August 2021: George
- Listen to read or write events after the SSL handshake.
Sticky events on windows would stick on read when write was needed.

3 August 2021: Wouter
- Merge PR #517 from dyunwei: #420 breaks the mesh reply list
function that need to reuse the dns answer.
- Annotate assertion into error printout; we think it may be an
error, but the situation looks harmless.
- Fix sign comparison warning on FreeBSD.

2 August 2021: Wouter
- Prepare for OpenSSL 3.0.0 provider API usage, move the sldns
keyraw functions to produce EVP_PKEY results.
- Move RSA and DSA to use OpenSSL 3.0.0 API.
- Move ECDSA functions to use OpenSSL 3.0.0 API.
- iana portlist update.
- Fix verbose printout failure in tcp reuse unit test.

30 July 2021: Wouter
- Fix #515: Compilation against openssl 3.0.0 beta2 is failing to
build unbound.
- For #515: Fix compilation with openssl 3.0.0 beta2, lib64 dir and
SSL_get_peer_certificate.
- Move acx_nlnetlabs.m4 to version 41, with lib64 openssl dir check.

26 July 2021: George
- Merge #513: Stream reuse, attempt to fix #411, #439, #469. This
introduces a couple of fixes for the stream reuse functionality
that could result in broken internal structures.

26 July 2021: Wouter
- Merge #512: unbound.service.in: upgrade hardening to latest
standards.
- Fix readzone unknown type print for memory resize.

21 July 2021: Wouter
- Fix that ldns_zone_new_frm_fp_l counts the line number for an empty
line after a comment.

16 July 2021: George
- Introduce 'http-user-agent:' and 'hide-http-user-agent:' options.

16 July 2021: Wouter
- Merge #510 from ndptech: Don't call a function which hasn't been
defined.
- Fix for #510: in depth, use ifdefs for windows api event calls.
- Fix spelling in doc/unbound.doxygen comment.
- Fix spelling in localzone.h comment.
- Fix unbound-control local_data and local_datas to print detailed
syntax errors.
- review fix to remove duplicate error printout.
- Insert header into testcode/readzone.c, it was missing.
- Fix from lint for ignored return value.
- Fix for older parsers for function call in serve expired get cached.

6 July 2021: Wouter
- iana portlist update.

5 July 2021: George
- Fix compiler warnings for #491.
- Fix clang-analysis warnings for testcode/readzone.c.

4 July 2021: George
- Fix Wunused-result compile warnings.

2 July 2021: Tom
- Merge PR #491: Add SVCB and HTTPS types and handling according to
draft-ietf-dnsop-svcb-https.

2 July 2021: Wouter
- Fix #506: Python Module Seems to Leak Memory if it Experiences an
Unhandled Exception.

25 June 2021: Wouter
- Fix up permissions on rpl data file in tests.
- Fix testbound newline treatment in moment_read and tempfile write.
- Fix configure grep for reuseport default for failure.
- Fix compat ctime_r return value
- Fix configure does not require pkg-config if not needed.
- Fix unit test in the ctime_r calls for autotrust and in testbound.
- Fix auth zone download on windows to unlink before rename.

24 June 2021: Wouter
- Add analyzer and port compile github workflow.

23 June 2021: Wouter
- Fix #503: DNS over HTTPS response truncated.
- Fix warnings reported by the gcc analyzer.

21 June 2021: George
- Fix #495: Documentation or implementation of "verbosity" option.

18 June 2021: Wouter
- Fix a number of warnings reported by the gcc analyzer.

15 June 2021: George
- Merge #440 by kimheino: Various fixes to contrib/unbound_munin_ file.

14 June 2021: Wouter
- Fix configure nonblocking test and onmingw test to use host.

10 June 2021: Wouter
- Fix #500: SPEC file in version 1.13.1 references version 1.4;
unable to build RPM from source.
- Fix contrib/unbound.spec, fixed url and comment.

9 June 2021: George
- Merge #486 by fobster: Make VAL_MAX_RESTART_COUNT configurable.
- Generated lexer and parser for #486; updated example.conf.
- Fix #413 (based on patch by k-ronny): unbound: does not compile
on macOS 11.1-x86_64 host.
- Use host_os instead of target_os in configure for Darwin8 build.

8 June 2021: George
- Fix unused variable warning when compiling with --enable-dnstap.

7 June 2021: George
- Merge #448 from shoeper: Update unbound-control.8.in, fix
rpz_disable typo.
- Fix #425: Document auth-zone supports communication with DNS
primary on nondefault port.

1 June 2021: George
- Fix test for zonemd-check option.

27 May 2021: Wouter
- Merge #496 from banburybill: Use build system endianness if
available, otherwise try to work it out.
- zonemd-check: yesno option, default no, enables the processing
of ZONEMD records for that zone.

25 May 2021: Wouter
- Move the NSEC3 max iterations count in line with the 150 value
used by BIND, Knot and PowerDNS. This sets the default value
for it in the configuration to 150 for all key sizes.
- Fix #492: module-config respip missing in unbound.conf.5.in man
page. Merges #494 from he32.
- For #492: Fix font highlighting for the man page on emacs.

21 May 2021: Wouter
- Test code has -q option for quiet output.

19 May 2021: George
- Fix for #411, #439, #469: Reset the DNS message ID when moving queries
between TCP streams.
- Refactor for uniform way to produce random DNS message IDs.

17 May 2021: Wouter
- Fix #489: Compile using MSYS2 MinGW 64-bit.

12 May 2021: Wouter
- Fix that auth-zone zonefiles use last TTL if no TTL is specified.

10 May 2021: Wouter
- Merge PR #487: ifdef RLIMIT_AS in recently added check.

7 May 2021: Wouter
- Fix #485: Unbound occasionally reports broken stats.
- Add ./configure --with-deprecate-rsa-1024 that turns off RSA 1024.
- Remove case fallthrough from deprecate-rsa-1024 code.

4 May 2021: George
- Fix for #367: only attempt to get the interface for queries that are no
longer on the tcp_waiting_list.
- Add more logging for out-of-memory cases.

4 May 2021: Wouter
- Merge #478: Allow configuration of TCP timeout while waiting for
response.
- Fix to squelch tcp socket bind failures when the interface is gone.
- Rerun flex and bison.

3 May 2021: Wouter
- Fix #481: Fix comment in configuration file.

29 April 2021: Wouter
- Add that log-servfail prints an IP address and more information
about one of the last failures for that query.

28 April 2021: George
- Fix compiler warning for signed/unsigned comparison for
max_reuse_tcp_queries.

28 April 2021: Wouter
- Fix #474: always_null and others inside view.

26 April 2021: Wouter
- Merge #470 from edevil: Allow configuration of persistent TCP
connections.

22 April 2021: Wouter
- Merge #466 from FGasper: Support OpenSSLs that lack
SSL_get0_alpn_selected.
- Fix #468: OpenSSL 1.0.1 can no longer build Unbound.
- Further fix for #468: detect SSL_CTX_set_alpn_protos for build with
OpenSSL 1.0.1.
- Fix that testcode dohclient has OpenSSL initialisation calls.

13 April 2021: George
- Fix documentation comment for files previously residing in checkconf/.
- Remove unused functions worker_handle_reply and libworker_handle_reply.

13 April 2021: Wouter
- Fix that nxdomain synthesis does not happen above the stub or
forward definition.

12 April 2021: George
- Fix (increase) verbosity level for iterator error log in
processQueryTargets().

12 April 2021: Wouter
- Fix permission denied sendto log, squelch the log messages
unless high verbosity is set.

9 April 2021: Wouter
- rebuild configure to set EXTRALINK to libunbound.la for #460.

7 April 2021: Wouter
- Fix for #411: Depth protect for crash on deleted element timeout.

1 April 2021: Wouter
- Merge #460 from orbea: build: Link with the libtool archive.
- Fix to stop IPv6 PMTU discovery.

31 March 2021: George
- Clean makedist.sh.

31 March 2021: Wouter
- Fix stack-protector change to not override other CFLAGS options.

30 March 2021: George
- Disable the use of stack-protector for cross compiled 32-bit windows
builds; relates to #444.

25 March 2021: Wouter
- Fix #429: Also fix end of transfer for http download of auth zones.

24 March 2021: Wouter
- Fix deprecation test to work for iOS TVOS and WatchOS, it uses
CFLAGS and CPPFLAGS and also checks if the item is unavailable.
- Travis, fix script to fail when tasks fail.
- Travis, fix warning in ubsan compile.
- Fix configure Targetconfiditionals.h header check, to use compile.
- Fix that cachedb does not produce empty object files when disabled.

23 March 2021: Wouter
- Travis enable all tests again. Clang analyzer only a couple times,
when there is a difference. homebrew updates disabled, so it does
not hang. removed trailing slashes from configure paths. Moved iOS
tests to allow-failure.
- travis, analyzer disabled on test without debug, that does not
run anway. Turn off failing tests except one. Update iOS test
to xcode image 12.2.

22 March 2021: George
- Fix unused-function warning when compiling with --enable-dnscrypt.
- Fix for #367: fix memory leak when cannot bind to listening port.
- Reformat pythonmod/pythonmod_utils.{c,h}.

22 March 2021: Wouter
- Merge #449 from orbea: build: Add missing linker flags.
- iana portlist update.
- Comment out nonworking OSX and IOS travis tests, vm fails to start.
- Fix compile error in listen_dnsport on Android.
- Fix memory leak reported by asan in rpz SOA record query name.

19 March 2021: Wouter
- Fix for #447: squelch connection refused tcp connection failures
from the log, unless verbosity is high.

17 March 2021: Wouter
- Fix #441: Minimal NSEC range not accepted for top level domains.

11 March 2021: Wouter
- Fix parse of LOC RR type for decimetres.

5 March 2021: Wouter
- Workaround for #439: prevent loops in the reuse rbtree.
- Debug output for #411 and #439: printout internal error and details.

4 March 2021: Wouter
- iana portlist update.
- Fix spurious errors about "Could not generate request: out of
memory". The mesh detect cycle routine no longer wrongly stops
the check when the calling mesh state is unique.

26 February 2021: George
- Fix for #367: rc_ports don't have ub_sock; skip cleaning up.

26 February 2021: Wouter
- Fix: Resolve interface names on control-interface too.

25 February 2021: Wouter
- Merge PR #367 : DNSTAP log local address. With code from PR #365
and fixes #368 : dnstap does not log the DNS message ID for
FORWARDER_QUERY.
- Fix to allow rpz with wildcard that applies to all TLDs at once.

24 February 2021: George
- Fix #384: (1) A minor request to improve the log (2) A minor bug in one
log message.
- ipsecmod: Better logging for detecting a cycle when attaching the
A/AAAA subquery.

24 February 2021: Wouter
- On startup of unbound it checks if rlimits on memory size look
sufficient for the configured cache size, and logs warning if not.
- Fix function documentation.
- Fix unit test for added ulimit checks.
- spelling fix in header.

23 February 2021: Wouter
- Fix for zonemd, that domain-insecure zones work without dnssec.
- Fix for zonemd, do not reject insecure result from trust anchor
validation step in dnssec chain of trust.

22 February 2021: Wouter
- Fix #431: Squelch permission denied errors for tcp connect
and udp connect from the logs, unless at high verbosity.
- Fix for zonemd, that nxdomain for the chain of trust is allowed
for island zones, it is treated as an insecure zone for verification.

18 February 2021: Wouter
- Merge PR #317: ZONEMD Zone Verification, with RFC 8976 support.
ZONEMD records are checked for zones loaded as auth-zone,
with DNSSEC if available. There is an added option
zonemd-permissive-mode that makes it log but not fail wrong zones.
With zonemd-reject-absence for an auth-zone the presence of a
zonemd can be mandated for specific zones.
- Fix doxygen and pydoc warnings.
- Fix #429: rpz: url: with https: broken (regression in 1.13.1).
- rpz skip nsec3param records, and nicer log for unsupported actions.

15 February 2021: Wouter
- Fix #422: IPv6 fallback issues when IPv6 is not properly
enabled/configured.
- Fix to make tests work with support indicators set for iterator.
- Fix build on Python 3.10.

10 February 2021: Wouter
- Merge PR #420 from dyunwei: DOH not responsing with
"http2_query_read_done failure" logged.

9 February 2021: Wouter
- Fix for Python 3.9, no longer use deprecated functions of
PyEval_CallObject (now PyObject_Call), PyEval_InitThreads (now
none), PyParser_SimpleParseFile (now Py_CompileString).

Import unbound 1.13.1

4 February 2021: Wouter
- release 1.13.1rc2 tag on branch-1.13.1 with added changes of 2 feb.
This became 1.13.1 release tag on 9 feb. The main branch is set
to version 1.13.2.

2 February 2021: Wouter
- branch-1.13.1 is created, with release-1.13.1rc1 tag.
- Fix dynlibmod link on rhel8 for -ldl inclusion.
- Fix windows dependency on libssp.dll because of default stack
protector in mingw.
- Fix indentation of root anchor for use by windows install script.

1 February 2021: George
- Attempt to fix NULL keys in the reuse_tcp tree; relates to #411.

29 January 2021: Wouter
- Fix for doxygen 1.8.20 compatibility.

28 January 2021: Wouter
- Annotate that we ignore the return value of if_indextoname.
- Fix to use correct type for label count in rpz routine.
- Fix empty clause warning in config_file nsid parse.
- Fix to use correct type for label count in ipdnametoaddr rpz routine.
- Fix empty clause warning in edns pass for padding.
- Fix fwd ancil test post script when not supported.

26 January 2021: George
- Merge PR #408 from fobser: Prevent a few more yacc clashes.
- Merge PR #275 from Roland van Rijswijk-Deij: Add feature to return the
original instead of a decrementing TTL ('serve-original-ttl')
- Merge PR #355 from noloader: Make ICANN Update CA and DS Trust Anchor
static data.
- Ignore cache blacklisting when trying to reply with expired data from
cache (#394).

26 January 2021: Wouter
- Fix compile of unbound-dnstap-socket without dnstap installed.

22 January 2021: Willem
- Padding of queries and responses with DNS over TLS as specified in
RFC7830 and RFC8467.

22 January 2021: George
- Fix TTL of SOA record for negative answers (localzone and
authzone data) to be the minimum of the SOA TTL and the SOA.MINIMUM.

19 January 2021: Willem
- Support for RFC5001: DNS Name Server Identifier (NSID) Option
with the nsid: option in unbound.conf

18 January 2021: Wouter
- Fix #404: DNS query with small edns bufsize fail.
- Fix declaration before statement and signed comparison warning in
dns64.

15 January 2021: Wouter
- Merge #402 from fobser: Implement IPv4-Embedded addresses according
to RFC6052.

14 January 2021: Wouter
- Fix for #93: dynlibmodule import library is named libunbound.dll.a.

13 January 2021: Wouter
- Merge #399 from xiangbao227: The lock of lruhash table should
unlocked after markdel entry.
- Fix for #93: dynlibmodule link fix for Windows.

12 January 2021: Wouter
- Fix #397: [Feature request] add new type always_null to local-zone
similar to always_nxdomain.
- Fix so local zone types always_nodata and always_deny can be used
from the config file.

8 January 2021: Wouter
- Merge PR #391 from fhriley: Add start_time to reply callbacks so
modules can compute the response time.
- For #391: use struct timeval* start_time for callback information.
- For #391: fix indentation.
- For #391: more double casts in python start time calculation.
- Add comment documentation.
- Fix clang analysis warning.

6 January 2021: Wouter
- Fix #379: zone loading over HTTP appears to have buffer issues.
- Merge PR #395 from mptre: add missing null check.
- Fix #387: client-subnet-always-forward seems to effectively bypass
any caching?

5 January 2021: Wouter
- Fix #385: autoconf 2.70 impacts unbound build
- Merge PR #375 by fhriley: Add rpz_enable and rpz_disable commands
to unbound-control.

4 January 2021: Wouter
- For #376: Fix that comm point event is not double removed or double
added to event map.
- iana portlist updated.

16 December 2020: George
- Fix error cases when udp-connect is set and send() returns an error
(modified patch from Xin Li @delphij).

11 December 2020: Wouter
- Fix #371: unbound-control timeout when Unbound is not running.
- Fix to squelch permission denied and other errors from remote host,
they are logged at higher verbosity but not on low verbosity.
- Merge PR #335 from fobser: Sprinkle in some static to prevent
missing prototype warnings.
- Merge PR #373 from fobser: Warning: arithmetic on a pointer to void
is a GNU extension.
- Fix missing prototypes in the code.

3 December 2020: Wouter
- make depend.
- iana portlist updated.

2 December 2020: Wouter
- Fix #360: for the additionally reported TCP Fast Open makes TCP
connections fail, in that case we print a hint that this is
happening with the error in the logs.
- Fix #356: deadlock when listening tcp.
- Fix unbound-dnstap-socket to not use log routine from interrupt
handler and not print so frequently when invoked in sequence.
- Fix on windows to ignore connection failure on UDP, unless verbose.
- Fix for #283: fix stream reuse and tcp fast open.
- Fix update, with write event check with streamreuse and fastopen.

1 December 2020: Wouter
- Fix #358: Squelch udp connect 'no route to host' errors on low
verbosity.

30 November 2020: Wouter
- Fix assertion failure on double callback when iterator loses
interest in query at head of line that then has the tcp stream
not kept for reuse.
- tag for the 1.13.0rc4 release. This also became the 1.13.0
release version on 3 dec 2020 with the streamreuse and fastopen
fix from 2 dec 2020. The code repo continues for 1.13.1 in
development.

27 November 2020: Wouter
- Fix compile warning for type cast in http2_submit_dns_response.
- Fix when use free buffer to initialize rbtree for stream reuse.
- Fix compile warnings for windows.
- Fix compile warnings in rpz initialization.
- Fix contrib/metrics.awk for FreeBSD awk compatibility.
- tag for the 1.13.0rc3 release.

26 November 2020: Wouter
- Fix to omit UDP receive errors from log, if verbosity low.
These happen because of udp-connect.
- For #352: contrib/metrics.awk for Prometheus style metrics output.
- Fix that after failed read, the readagain cannot activate.
- Clear readagain upon decommission of pending tcp structure.

25 November 2020: Wouter
- with udp-connect ignore connection refused with UDP timeouts.
- Fix udp-connect on FreeBSD, do send calls on connected UDP socket.
- Better fix for reuse tree comparison for is-tls sockets. Where
the tree key identity is preserved after cleanup of the TLS state.
- Remove debug commands from reuse tests.
- Fix memory leak for edns client tag opcode config element.
- Attempt fix for libevent state in tcp reuse cases after a packet
is written.
- Fix readagain and writeagain callback functions for comm point
cleanup.
- tag for the 1.13.0rc2 release.

24 November 2020: Wouter
- Merge PR #283 : Stream reuse. This implements upstream stream
reuse for performing several queries over the same TCP or TLS
channel.
- set version of main branch to 1.13.0 for upcoming release.
- iana portlist updated.
- Fix one port unit test for udp-connect.
- tag for the 1.13.0rc1 release.
- Fix crash when TLS connection is closed prematurely, when
reuse tree comparison is not properly identical to insertion.
- Fix padding of struct regional for 32bit systems.

23 November 2020: George
- Merge PR #313 from Ralph Dolmans: Replace edns-client-tag with
edns-client-string option.

23 November 2020: Wouter
- Merge #351 from dvzrv: Add AF_NETLINK to set of allowed socket
address families.
- Fix #350: with the AF_NETLINK permission, to fix 1.12.0 error:
failed to list interfaces: getifaddrs: Address family not
supported by protocol.
- Fix #347: IP_DONTFRAG broken on Apple xcode 12.2.
- Option to toggle udp-connect, default is enabled.
- Fix for #303 CVE-2020-28935 : Fix that symlink does not interfere
with chown of pidfile.
- Further fix for it and retvalue 0 fix for it.

12 November 2020: Wouter
- Fix to connect() to UDP destinations, default turned on,
this lowers vulnerability to ICMP side channels.
- Retry for interfaces with unused ports if possible.

10 November 2020: Wouter
- Fix #341: fixing a possible memory leak.
- Fix memory leak after fix for possible memory leak failure.
- Fix #343: Fail to build --with-libnghttp2 with error: 'SSIZE_MAX'
undeclared.

27 October 2020: Wouter
- In man page note that tls-cert-bundle is read before permission
drop and chroot.

22 October 2020: Wouter
- Fix #333: Unbound Segmentation Fault w/ log_info Functions From
Python Mod.
- Fix that minimal-responses does not remove addresses from a priming
query response.

21 October 2020: George
- Fix #327: net/if.h check fails on some darwin versions; contribution by
Joshua Root.
- Fix #320: potential memory corruption due to size miscomputation upton
custom region alloc init.

21 October 2020: Wouter
- Merge PR #228 : infra-keep-probing option to probe hosts that are
down. Add infra-keep-probing: yes option. Hosts that are down are
probed more frequently.
With the option turned on, it probes about every 120 seconds,
eventually after exponential backoff, and that keeps that way. If
traffic keeps up for the domain. It probes with one at a time, eg.
one query is allowed to probe, other queries within that 120 second
interval are turned away.

19 October 2020: George
- Merge PR #324 from James Renken: Add modern X.509v3 extensions to
unbound-control TLS certificates.
- Fix for PR #324 to attach the x509v3 extensions to the client
certificate.

19 October 2020: Ralph
- local-zone regional allocations outside of chunk

19 October 2020: Wouter
- Fix that http settings have colon in set_option, for
http-endpoint, http-max-streams, http-query-buffer-size,
http-response-buffer-size, and http-nodelay.
- Fix memory leak of https port string when reading config.
- Fix #330: [Feature request] Add unencrypted DNS over HTTPS support.
This adds the option http-notls-downstream: yesno to change that,
and the dohclient test code has the -n option.
- Fix python documentation warning on functions.rst inplace_cb_reply.
- Fix dnstap test to wait for log timer to see if queries are logged.
- Log ip address when http session recv fails, eg. due to tls fail.
- Fix to set the tcp handler event toggle flag back to default when
the handler structure is reused.
- Clean the fix for out of order TCP processing limits on number
of queries. It was tested to work.

16 October 2020: Wouter
- Fix that the out of order TCP processing does not limit the
number of outstanding queries over a connection.

15 October 2020: George
- Fix that if there are reply callbacks for the given rcode, those
are called per reply and a new message created if that was modified
by the call.
- Pass the comm_reply information to the inplace_cb_reply* functions
during the mesh state and update the documentation on that.

15 October 2020: Wouter
- Merge PR #326 from netblue30: DoH: implement content-length
header field
- DoH content length, simplify code, remove declaration after
statement and fix cast warning.

14 October 2020: Wouter
- Fix for python reply callback to see mesh state reply_list member,
it only removes it briefly for the commpoint call so that it does
not drop it and attempt to modify the reply list during reply.
- Fix that if there are on reply callbacks, those are called per
reply and a new message created if that was modified by the call.
- Free up auth zone parse region after use for lookup of host

13 October 2020: Wouter
- Fix #323: unbound testsuite fails on mock build in systemd-nspawn
if systemd support is build.

9 October 2020: Wouter
- Fix dnstap socket and the chroot not applied properly to the dnstap
socket path.
- Fix warning in libnss compile, nss_buf2dsa is not used without DSA.

8 October 2020: Wouter
- Tag for 1.12.0 release.
- Current repo is version 1.12.1 in development.
- Fix #319: potential memory leak on config failure, in rpz config.

1 October 2020: Wouter
- Current repo is version 1.12.0 for release. Tag for 1.12.0rc1.

30 September 2020: Wouter
- Fix doh tests when not compiled in.
- Add dohclient test executable to gitignore.
- Fix stream_ssl, ssl_req_order and ssl_req_timeout tests for
alloc check debug output.
- Easier kill of unbound-dnstap-socket tool in test.
- Fix memory leak of edns tags at libunbound context delete.
- Fix double loopexit for unbound-dnstap-socket after sigterm.

29 September 2020: Ralph
- DNS Flag Day 2020: change edns-buffer-size default to 1232.

28 September 2020: Wouter
- Fix unit test for dnstap changes, so that it waits for the timer.

23 September 2020: Wouter
- Fix #305: dnstap logging significantly affects unbound performance
(regression in 1.11).
- Fix #305: only wake up thread when threshold reached.
- Fix to ifdef fptr wlist item for dnstap.

23 September 2020: Ralph
- Fix edns-client-tags get_option typo
- Add edns-client-tag-opcode option
- Use inclusive language in configuration

21 September 2020: Ralph
- Fix #304: dnstap logging not recovering after dnstap process restarts

21 September 2020: Wouter
- Merge PR #311 by luismerino: Dynlibmod leak.
- Error message is logged for dynlibmod malloc failures.
- iana portlist updated.

18 September 2020: Wouter
- Fix that prefer-ip4 and prefer-ip6 can be get and set with
unbound-control, with libunbound and the unbound-checkconf option
output function.
- iana portlist updated.

15 September 2020: George
- Introduce test for statistics.

15 September 2020: Wouter
- Spelling fix.

11 September 2020: Wouter
- Remove x file mode on ipset/ipset.c and h files.

9 September 2020: Wouter
- Fix num.expired statistics output.

31 August 2020: Wouter
- Merge PR #293: Add missing prototype. Also refactor to use the new
shorthand function to clean up the code.
- Refactor to use sock_strerr shorthand function.
- Fix #296: systemd nss-lookup.target is reached before unbound can
successfully answer queries. Changed contrib/unbound.service.in.

27 August 2020: Wouter
- Similar to NSD PR#113, implement that interface names can be used,
eg. something like interface: eth0 is resolved at server start and
uses the IP addresses for that named interface.
- Review fix, doxygen and assign null in case of error free.

26 August 2020: George
- Update documentation in python example code.

24 August 2020: Wouter
- Fix that dnstap reconnects do not spam the log with the repeated
attempts. Attempts on the timer are only logged on high verbosity,
if they produce a connection failure error.
- Fix to apply chroot to dnstap-socket-path, if chroot is enabled.
- Change configure to use EVP_sha256 instead of HMAC_Update for
openssl-3.0.0.

20 August 2020: Ralph
- Fix stats double count issue (#289).

13 August 2020: Ralph
- Create and init edns tags data for libunbound.

10 August 2020: Ralph
- Merge (modified) PR #277, use EVP_MAC_CTX_set_params if available,
by V�t#zslav #�#ek.

10 August 2020: Wouter
- Fix #287: doc typo: "Additionaly".
- Rerun autoconf

6 August 2020: Wouter
- Merge PR #284 and Fix #246: Remove DLV entirely from Unbound.
The DLV has been decommisioned and in unbound 1.5.4, in 2015, there
was advise to stop using it. The current code base does not contain
DLV code any more. The use of dlv options displays a warning.

5 August 2020: Wouter
- contrib/aaaa-filter-iterator.patch file renewed diff content to
apply cleanly to the current coderepo for the current code version.

5 August 2020: Ralph
- Merge PR #272: Add EDNS client tag functionality.

4 August 2020: George
- Improve error log message when inserting rpz RR.
- Merge PR #280, Make tvOS & watchOS checks verify truthiness as well as
definedness, by Felipe Gasper.

4 August 2020: Wouter
- Fix mini_event.h on OpenBSD cannot find fd_set.

31 July 2020: Wouter
- Fix doxygen comment for no ssl for tls session ticket key callback
routine.

27 July 2020: George
- Merge PR #268, draft-ietf-dnsop-serve-stale-10 has become RFC 8767 on
March 2020, by and0x000.

27 July 2020: Ralph
- Merge PR #269, Fix python module len() implementations, by Torbj�rn
L�nnemark

27 July 2020: Wouter
- branch now named 1.11.1. 1.11.0rc1 became the 1.11.0 release.
- Merge PR #270 from cgzones: munin plugin: always exit 0 in autoconf

20 July 2020: Wouter
- Fix streamtcp to print packet data to stdout. This makes the
stdout and stderr not mix together lines, when parsing its output.
- Fix contrib/fastrpz.patch to apply cleanly. It fixes for changes
due to added libdynmod, but it does not compile, it conflicts with
new rpz code.
- branch now named 1.11.0 and 1.11.0rc1 tag.

17 July 2020: Wouter
- Fix libnettle compile for session ticket key callback function
changes.
- Fix lock dependency cycle in rpz zone config setup.

17 July 2020: Ralph
- Merge PR #234 - Ensure proper alignment of cmsg buffers by J�r�mie
Courr�ges-Anglas.
- Fix PR #234 log_assert sizeof to use union buffer.

16 July 2020: Wouter
- Fix check conf test for referencing installation paths.
- Fix unused variable warning for clang analyzer.

16 July 2020: George
- Introduce 'include-toplevel:' configuration option.

16 July 2020: Ralph
- Add bidirectional frame streams support.

8 July 2020: Wouter
- Fix add missing DSA header, for compilation without deprecated
OpenSSL APIs.
- Fix to use SSL_CTX_set_tlsext_ticket_key_evp_cb in OpenSSL
3.0.0-alpha4.
- Longer keys for the test set, this avoids weak crypto errors.

7 July 2020: Wouter
- Fix #259: Fix unbound-checkconf does not check view existence.
unbound-checkconf checks access-control-view, access-control-tags,
access-control-tag-actions and access-control-tag-datas.
- Fix offset of error printout for access-control-tag-datas.
- Review fixes for checkconf #259 change.

6 July 2020: Wouter
- run_vm cleanup better and removes trailing slash on single argument.

29 June 2020: Wouter
- Move reply list clean for serve expired mesh callback to after
the reply is sent, so that script callbacks have reply_info.
- Also move reply list clean for mesh callbacks to the scrip callback
can see the reply_info.
- Fix for mesh accounting if the reply list already empty to begin
with.
- Fix for mesh accounting when rpz decides to drop a reply with a
tcp stream waiting for it.
- Review fix for number of detached states due to use of variable
after end of loop.
- Fix tcp req info drop due to size call into mesh accounting
removal of mesh state during mesh send reply.

24 June 2020: Wouter
- iana portlist updated.
- doxygen file comments for dynlibmodule.

17 June 2020: Wouter
- Fix default explanation in man page for qname-minimisation-strict.
- Fix display of event loop method with libev.

8 June 2020: Wouter
- Mention tls name possible when tls is enabled for stub-addr in the
man page.

27 May 2020: George
- Merge PR #241 by Robert Edmonds: contrib/libunbound.pc.in: Do not use
"Requires:".

25 May 2020: George
- Update contrib/aaaa-filter-iterator.patch for the recent
generate_sub_request() change and to apply cleanly.

21 May 2020: George
- Fix for integer overflow when printing RDF_TYPE_TIME.

19 May 2020: Wouter
- CVE-2020-12662 Unbound can be tricked into amplifying an incoming
query into a large number of queries directed to a target.
- CVE-2020-12663 Malformed answers from upstream name servers can be
used to make Unbound unresponsive.
- Release 1.10.1 is 1.10.0 with fixes, code repository continues,
including those fixes, towards the next release. Configure has
version 1.10.2 version number in it.
- For PR #93: windows compile warnings removal
- windows compile warnings removal for ip dscp option code.
- For PR #93: unit test for dynlib module.

18 May 2020: Wouter
- For PR #93: dynlibmod can handle reloads and deinit and inits again,
with dlclose and dlopen of the library again. Also for multiple
modules. Fix memory leak by not closing dlopened content. Fix
to allow one dynlibmod instance by unbound-checkconf.
- For PR #93: checkconf allows multiple dynlib in module-config, for
a couple cases.
- For PR #93: checkconf allows python dynlib in module-config, for
a couple cases.
- For PR #93: man page spelling reference fix.
- For PR #93: fix link of other executables for dynlibmod dependency.

15 May 2020: Wouter
- Merge PR #93: Add dynamic library support.
- Fixed conflicts for PR #93 and make configure, yacc, lex.
- For PR #93: Fix warnings for dynlibmodule.

15 May 2020: Ralph
- Cache ECS answers with longest scope of CNAME chain.

22 April 2020: George
- Explicitly use 'rrset-roundrobin: no' for test cases.

21 April 2020: Wouter
- Merge #225 from akhait: KSK-2010 has been revoked. It removes the
KSK-2010 from the default list in unbound-anchor, now that the
revocation period is over. KSK-2017 is the only trust anchor in
the shipped default now.

21 April 2020: George
- Change default value for 'rrset-roundrobin' to yes.
- Fix tests for new rrset-roundrobin default.

20 April 2020: Wouter
- Fix #222: --enable-rpath, fails to rpath python lib.
- Fix for count of reply states in the mesh.
- Remove unneeded was_mesh_reply check.

17 April 2020: George
- Add SNI support on more TLS connections (fixes #193).
- Add SNI support to unbound-anchor.

16 April 2020: George
- Add doxygen documentation for DSCP.

16 April 2020: Wouter
- Fix help return code in unbound-control-setup script.
- Fix for posix shell syntax for trap in nsd-control-setup.
- Fix for posix shell syntax for trap in run_msg.sh test script.

15 April 2020: George
- Fix #220: auth-zone section in config may lead to segfault.

7 April 2020: Wouter
- Merge PR #214 from gearnode: unbound-control-setup recreate
certificates. With the -r option the certificates are created
again, without it, only the files that do not exist are created.

6 April 2020: Ralph
- Keep track of number of timeouts. Use this counter to determine if
capsforid fallback should be started.

6 April 2020: George
- More documentation for redis-expire-records option.

1 April 2020: George
- Merge PR #206: Redis TTL, by Talkabout.

30 March 2020: Wouter
- Merge PR #207: Clarify if-automatic listens on 0.0.0.0 and ::
- Merge PR #208: Fix uncached CLIENT_RESPONSE'es on stateful
transports.

27 March 2020: Wouter
- Merge PR #203 from noloader: Update README-Travis.md with current
procedures.

27 March 2020: Ralph
- Make unbound-control error returned on missing domain name more user
friendly.

26 March 2020: Ralph
- Fix RPZ concurrency issue when using auth_zone_reload.

25 March 2020: George
- Merge PR #201 from noloader: Fix OpenSSL cross-compaile warnings.
- Fix on #201.

24 March 2020: Wouter
- Merge PR #200 from yarikk: add ip-dscp option to specify the DSCP
tag for outgoing packets.
- Fixes on #200.
- Travis fix for ios by omitting tools from install.

23 March 2020: Wouter
- Fix compile on Solaris for unbound-checkconf.

20 March 2020: George
- Merge PR #198 from fobser: Declare lz_enter_rr_into_zone() static, it's
only used in this file.

20 March 2020: Wouter
- Merge PR #197 from fobser: Make log_ident_revert_to_default() a
proper prototype.

19 March 2020: Ralph
- Merge PR#191: Update iOS testing on Travis, by Jeffrey Walton.
- Fix #158: open tls-session-ticket-keys as binary, for Windows. By
Daisuke HIGASHI.
- Merge PR#134, Allow the kernel to provide random source ports. By
Florian Obser.
- Log warning when using outgoing-port-permit and outgoing-port-avoid
while explicit port randomisation is disabled.
- Merge PR#194: Add libevent testing to Travis, by Jeffrey Walton.
- Fix .travis.yml error, missing 'env' option.

16 March 2020: Wouter
- Fix #192: In the unbound-checkconf tool, the module config of
dns64 subnetcache respip validator iterator is whitelisted, it was
reported it seems to work.

12 March 2020: Wouter
- Fix compile of test tools without protobuf.

11 March 2020: Ralph
- Add check to make sure RPZ records are subdomains of configured
zone origin.

11 March 2020: George
- Fix #189: mini_event.h:142:17: error: field 'ev_timeout' has incomplete
type, by noloader.
- Changelog entry for (Fix #189, Merge PR #190).

11 March 2020: Wouter
- Fix #188: unbound-control.c:882:6: error: 'execlp' is
unavailable: not available on tvOS.

6 March 2020: George
- Merge PR #186, fix #183: Fix unrecognized 'echo -n' option on OS X, by
noloader

5 March 2020: Wouter
- Fix PR #182 from noloader: Add iOS testing to Travis.

4 March 2020: Ralph
- Update README-Travis.md (from PR #179), by Jeffrey Walton.

4 March 2020: George
- Merge PR #181 from noloader: Fix OpenSSL -pie warning on Android.

4 March 2020: Wouter
- Merge PR #180 from noloader: Avoid calling exit in Travis script.

3 March 2020: George
- Upgrade config.guess(2020-01-01) and config.sub(2020-01-01).

2 March 2020: Ralph
- Fix #175, Merge PR #176: fix link error when OpenSSL is configured
with no-engine, thanks noloader.

2 March 2020: George
- Fix compiler warning in dns64/dns64.c
- Merge PR #174: Add Android to Travis testing, by noloader.
- Move android build scripts to contrib/ and allow android tests to fail.

2 March 2020: Wouter
- Fix #177: dnstap does not build on macOS.

28 February 2020: Ralph
- Merge PR #172: Add IBM s390x arch for testing, by noloader.

28 February 2020: Wouter
- Merge PR #173: updated makedist.sh for config.guess and
config.sub and sha256 digest for gpg, by noloader.
- Merge PR #164: Framestreams, this branch implements dnstap
unidirectional connectivity in unbound. This has a number of
new features.

The dependency on libfstrm is removed. The fstrm protocol code
resides in dnstap/dnstap_fstrm.h and dnstap/dnstap_fstrm.c. This
contains a brief definition of what unbound needs.

The make unbound-dnstap-socket builds a debug tool,
unbound-dnstap-socket. It can listen, accept multiple DNSTAP
streams and print information. Commandline options control it.

Unbound can reconnect if the unix domain socket file socket is
closed. This uses exponential backoff after which it uses a
one second timer to throttle cpu down. There is also support
to use TCP and TLS for connecting to the log server. There
are new config options to turn them on, in the dnstap section
in the man page and example config file. dnstap-ip with IP
address of server for TCP or TLS use. dnstap-tls to turn
on TLS. And dnstap-tls-server-name, dnstap-tls-cert-bundle,
dnstap-tls-client-key-file and dnstap-tls-client-cert-file
to configure the certificates for server authentication and
client authentication, or leave at "" to not use that.

27 February 2020: George
- Merge PR #171: Add additional compilers and platforms to Travis
testing, by noloader.

27 February 2020: Wouter
- Fix #169: Fix warning for daemon/remote.c output may be truncated
from snprintf.
- Fix #170: Fix gcc undefined sanitizer signed integer overflow
warning in signature expiry RFC1982 serial number arithmetic.
- Fix more undefined sanitizer issues, in respip copy_rrset null
dname, and in the client_info_compare routine for null memcmp.

26 February 2020: Wouter
- iana portlist updated.

25 February 2020: Wouter
- Fix #165: Add prefer-ip4: yesno config option to prefer ipv4 for
using ipv4 filters, because the hosts ip6 netblock /64 is not owned
by one operator, and thus reputation is shared.

24 February 2020: George
- Merge PR #166: Fix typo in unbound.service.in, by glitsj16.

20 February 2020: Wouter
- Updated contrib/unbound_smf23.tar.gz with Solaris SMF service for
Unbound from Yuri Voinov.
- master branch has 1.10.1 version.

18 February 2020: Wouter
- protect X509_CHECK_FLAG_NO_PARTIAL_WILDCARDS with ifdef for
different openssl versions.

17 February 2020: Wouter
- changelog point where the tag for 1.10.0rc2 release is. And with
the unbound_smf23 commit added to it, that is the 1.10.0 release.

17 February 2020: Ralph
- Add respip to supported module-config options in unbound-checkconf.

17 February 2020: George
- Remove unused variable.

17 February 2020: Wouter
- contrib/drop2rpz: perl script that converts the Spamhaus DROP-List
in RPZ-Format, contributed by Andreas Schulze.

14 February 2020: Wouter
- Fix spelling in unbound.conf.5.in.
- Stop unbound-checkconf from insisting that auth-zone and rpz
zonefiles have to exist. They can not exist, and download later.

13 February 2020: Wouter
- tag for 1.10.0rc1 release.

12 February 2020: Wouter
- Fix with libnettle make test with dsa disabled.
- Fix contrib/fastrpz.patch to apply cleanly. Fix for serve-stale
fixes, but it does not compile, conflicts with new rpz code.
- Fix to clean memory leak of respip_addr.lock when ip_tree deleted.
- Fix compile warning when threads disabled.
- updated version number to 1.10.0.

10 February 2020: George
- Document 'ub_result.was_ratelimited' in libunbound.
- Fix use after free on log-identity after a reload; Fixes #163.

6 February 2020: George
- Fix num_reply_states and num_detached_states counting with
serve_expired_callback.
- Cleaner code in mesh_serve_expired_lookup.
- Document in unbound.conf manpage that configuration clauses can be
repeated in the configuration file.

6 February 2020: Wouter
- Fix num_reply_addr counting in mesh and tcp drop due to size
after serve_stale commit.
- Fix to create and destroy rpz_lock in auth_zones structure.
- Fix to lock zone before adding rpz qname trigger.
- Fix to lock and release once in mesh_serve_expired_lookup.
- Fix to put braces around empty if body when threading is disabled.

5 February 2020: George
- Added serve-stale functionality as described in
draft-ietf-dnsop-serve-stale-10. `serve-expired-*` options can be used
to configure the behavior.
- Updated cachedb to honor `serve-expired-ttl`; Fixes #107.
- Renamed statistic `num.zero_ttl` to `num.expired` as expired replies
come with a configurable TTL value (`serve-expired-reply-ttl`).
- Fixed stats when replying with cached, cname-aliased records.
- Added missing default values for redis cachedb backend.

3 February 2020: Ralph
- Add assertion to please static analyzer

31 January 2020: Wouter
- Fix fclose on error in TLS session ticket code.

30 January 2020: Ralph
- Fix memory leak in error condition remote.c
- Fix double free in error condition view.c
- Fix memory leak in do_auth_zone_transfer on success
- Merge RPZ support into master. Only QNAME and Response IP triggers are
supported.
- Stop working on socket when socket() call returns an error.
- Check malloc return values in TLS session ticket code

30 January 2020: Wouter
- Fix subnet tests for disabled DSA algorithm by default.
- Update contrib/fastrpz.patch for clean diff with current code.
- Merge PR#151: Fixes for systemd units, by Maryse47, Edmonds
and Frzk. Updates the unbound.service systemd file and adds
a portable systemd service file.
- updated .gitignore for added contrib file.
- Add build rule for ipset to Makefile
- Add getentropy_freebsd.o to Makefile dependencies.

29 January 2020: Ralph
- Merge PR#156 from Alexander Berkes; Added unbound-control
view_local_datas_remove command.

29 January 2020: Wouter
- Fix #157: undefined reference to `htobe64'.

28 January 2020: Ralph
- Merge PR#147; change rfc reference for reserved top level dns names.

28 January 2020: Wouter
- iana portlist updated.
- Fix to silence the tls handshake errors for broken pipe and reset
by peer, unless verbosity is set to 2 or higher.

27 January 2020: Ralph
- Merge PR#154; Allow use of libbsd functions with configure option
--with-libbsd. By Robert Edmonds and Steven Chamberlain.
- Merge PR#148; Add some TLS stats to unbound_munin_. By Fredrik Pettai.

27 January 2020: Wouter
- Merge PR#155 from Robert Edmonds: contrib/libunbound.pc.in: Fixes
to Libs/Requires for crypto library dependencies.
- Fix #153: Disable validation for DSA algorithms. RFC 8624
compliance.

23 January 2020: Wouter
- Merge PR#150 from Frzk: Systemd unit without chroot. It add
contrib/unbound_nochroot.service.in, a systemd file for use with
chroot: "", see comments in the file, it uses systemd protections
instead.

14 January 2020: Wouter
- Removed the dnscrypt_queries and dnscrypt_queries_chacha tests,
because dnscrypt-proxy (2.0.36) does not support the test setup
any more, and also the config file format does not seem to have
the appropriate keys to recreate that setup.
- Fix crash after reload where a stats lookup could reference old key
cache and neg cache structures.
- Fix for memory leak when edns subnet config options are read when
compiled without edns subnet support.
- Fix auth zone support for NSEC3 records without salt.

10 January 2020: Wouter
- Fix the relationship between serve-expired and prefetch options,
patch from Saksham Manchanda from Secure64.
- Fix unreachable code in ssl set options code.

8 January 2020: Ralph
- Fix #138: stop binding pidfile inside chroot dir in systemd service
file.

8 January 2020: Wouter
- Fix 'make test' to work for --disable-sha1 configure option.
- Fix out-of-bounds null-byte write in sldns_bget_token_par while
parsing type WKS, reported by Luis Merino from X41 D-Sec.
- Updated sldns_bget_token_par fix for also space for the zero
delimiter after the character. And update for more spare space.

6 January 2020: George
- Downgrade compat/getentropy_solaris.c to version 1.4 from OpenBSD.
The dl_iterate_phdr() function introduced in newer versions raises
compilation errors on solaris 10.
- Changes to compat/getentropy_solaris.c for,
ifdef stdint.h inclusion for older systems.
ifdef sha2.h inclusion for older systems.

6 January 2020: Wouter
- Merge #135 from Florian Obser: Use passed in neg and key cache
if non-NULL.
- Fix #140: Document slave not downloading new zonefile upon update.

16 December 2019: George
- Update mailing list URL.

12 December 2019: Ralph
- Master is 1.9.7 in development.
- Fix typo to let serve-expired-ttl work with ub_ctx_set_option(), by
Florian Obser

10 December 2019: Wouter
- Fix to make auth zone IXFR to fallback to AXFR if a single
response RR is received over TCP with the SOA in it.

Import unbound 1.9.6:

6 December 2019: Wouter
- Fix ipsecmod compile.
- Fix Makefile.in for ipset module compile, from Adi Prasaja.

5 December 2019: Wouter
- unbound-fuzzers.tar.bz2: three programs for fuzzing, that are 1:1
replacements for unbound-fuzzme.c that gets created after applying
the contrib/unbound-fuzzme.patch. They are contributed by
Eric Sesterhenn from X41 D-Sec.
- tag for 1.9.6rc1.

4 December 2019: Wouter
- Fix lock type for memory purify log lock deletion.
- Fix testbound for alloccheck runs, memory purify and lock checks.
- update contrib/fastrpz.patch to apply more cleanly.
- Fix Make Test Fails when Configured With --enable-alloc-nonregional,
reported by X41 D-Sec.

3 December 2019: Wouter
- Merge pull request #124 from rmetrich: Changed log lock
from 'quick' to 'basic' because this is an I/O lock.
- Fix text around serial arithmatic used for RRSIG times to refer
to correct RFC number.
- Fix Assert Causing DoS in synth_cname(),
reported by X41 D-Sec.
- Fix similar code in auth_zone synth cname to add the extra checks.
- Fix Assert Causing DoS in dname_pkt_copy(),
reported by X41 D-Sec.
- Fix OOB Read in sldns_wire2str_dname_scan(),
reported by X41 D-Sec.
- Fix Out of Bounds Write in sldns_str2wire_str_buf(),
reported by X41 D-Sec.
- Fix Out of Bounds Write in sldns_b64_pton(),
fixed by check in sldns_str2wire_int16_data_buf(),
reported by X41 D-Sec.
- Fix Insufficient Handling of Compressed Names in dname_pkt_copy(),
reported by X41 D-Sec.
- Fix Out of Bound Write Compressed Names in rdata_copy(),
reported by X41 D-Sec.
- Fix Hang in sldns_wire2str_pkt_scan(),
reported by X41 D-Sec.
This further lowers the max to 256.
- Fix snprintf() supports the n-specifier,
reported by X41 D-Sec.
- Fix Bad Indentation, in dnscrypt.c,
reported by X41 D-Sec.
- Fix Client NONCE Generation used for Server NONCE,
reported by X41 D-Sec.
- Fix compile error in dnscrypt.
- Fix _vfixed not Used, removed from sbuffer code,
reported by X41 D-Sec.
- Fix Hardcoded Constant, reported by X41 D-Sec.
- make depend

2 December 2019: Wouter
- Merge pull request #122 from he32: In tcp_callback_writer(),
don't disable time-out when changing to read.

22 November 2019: George
- Fix compiler warnings.

22 November 2019: Wouter
- Fix dname loop maximum, reported by Eric Sesterhenn from X41 D-Sec.
- Add make distclean that removes everything configure produced,
and make maintainer-clean that removes bison and flex output.

20 November 2019: Wouter
- Fix Out of Bounds Read in rrinternal_get_owner(),
reported by X41 D-Sec.
- Fix Race Condition in autr_tp_create(),
reported by X41 D-Sec.
- Fix Shared Memory World Writeable,
reported by X41 D-Sec.
- Adjust unbound-control to make stats_shm a read only operation.
- Fix Weak Entropy Used For Nettle,
reported by X41 D-Sec.
- Fix Randomness Error not Handled Properly,
reported by X41 D-Sec.
- Fix Out-of-Bounds Read in dname_valid(),
reported by X41 D-Sec.
- Fix Config Injection in create_unbound_ad_servers.sh,
reported by X41 D-Sec.
- Fix Local Memory Leak in cachedb_init(),
reported by X41 D-Sec.
- Fix Integer Underflow in Regional Allocator,
reported by X41 D-Sec.
- Upgrade compat/getentropy_linux.c to version 1.46 from OpenBSD.
- Synchronize compat/getentropy_win.c with version 1.5 from
OpenBSD, no changes but makes the file, comments, identical.
- Upgrade compat/getentropy_solaris.c to version 1.13 from OpenBSD.
- Upgrade compat/getentropy_osx.c to version 1.12 from OpenBSD.
- Changes to compat/getentropy files for,
no link to openssl if using nettle, and hence config.h for
HAVE_NETTLE variable.
compat definition of MAP_ANON, for older systems.
ifdef stdint.h inclusion for older systems.
ifdef sha2.h inclusion for older systems.
- Fixed Compat Code Diverging from Upstream, reported by X41 D-Sec.
- Fix compile with --enable-alloc-checks, reported by X41 D-Sec.
- Fix Terminating Quotes not Written, reported by X41 D-Sec.
- Fix Useless memset() in validator, reported by X41 D-Sec.
- Fix Unrequired Checks, reported by X41 D-Sec.
- Fix Enum Name not Used, reported by X41 D-Sec.
- Fix NULL Pointer Dereference via Control Port,
reported by X41 D-Sec.
- Fix Bad Randomness in Seed, reported by X41 D-Sec.
- Fix python examples/calc.py for eval, reported by X41 D-Sec.
- Fix comments for doxygen in dns64.

19 November 2019: Wouter
- Fix CVE-2019-18934, shell execution in ipsecmod.
- 1.9.5 is 1.9.4 with bugfix, trunk is 1.9.6 in development.
- Fix authzone printout buffer length check.
- Fixes to please lint checks.
- Fix Integer Overflow in Regional Allocator,
reported by X41 D-Sec.
- Fix Unchecked NULL Pointer in dns64_inform_super()
and ipsecmod_new(), reported by X41 D-Sec.
- Fix Out-of-bounds Read in rr_comment_dnskey(),
reported by X41 D-Sec.
- Fix Integer Overflows in Size Calculations,
reported by X41 D-Sec.
- Fix Integer Overflow to Buffer Overflow in
sldns_str2wire_dname_buf_origin(), reported by X41 D-Sec.
- Fix Out of Bounds Read in sldns_str2wire_dname(),
reported by X41 D-Sec.
- Fix Out of Bounds Write in sldns_bget_token_par(),
reported by X41 D-Sec.

18 November 2019: Wouter
- In unbound-host use separate variable for get_option to please
code checkers.
- update to bison output of 3.4.1 in code repository.
- Provide a prototype for compat malloc to remove compile warning.
- Portable grep usage for reuseport configure test.
- Check return type of HMAC_Init_ex for openssl 0.9.8.
- gitignore .source tempfile used for compatible make.

13 November 2019: Wouter
- iana portlist updated.
- contrib/fastrpz.patch updated to apply for current code.
- fixes for splint cleanliness, long vs int in SSL set_mode.

11 November 2019: Wouter
- Fix #109: check number of arguments for stdin-pipes in
unbound-control and fail if too many arguments.
- Merge #102 from jrtc27: Add getentropy emulation for FreeBSD.

24 October 2019: Wouter
- Fix #99: Memory leak in ub_ctx (event_base will never be freed).

23 October 2019: George
- Add new configure option `--enable-fully-static` to enable full static
build if requested; in relation to #91.

23 October 2019: Wouter
- Merge #97: manpage: Add missing word on unbound.conf,
from Erethon.

22 October 2019: Wouter
- drop-tld.diff: adds option drop-tld: yesno that drops 2 label
queries, to stop random floods. Apply with
patch -p1 < contrib/drop-tld.diff and compile.
From Saksham Manchanda (Secure64). Please note that we think this
will drop DNSKEY and DS lookups for tlds and hence break DNSSEC
lookups for downstream clients.

7 October 2019: Wouter
- Add doxygen comments to unbound-anchor source address code, in #86.

3 October 2019: Wouter
- Merge #90 from vcunat: fix build with nettle-3.5.
- Merge 1.9.4 release with fix for vulnerability CVE-2019-16866.
- Continue with development of 1.9.5.
- Merge #86 from psquarejho: Added -b source address option to
smallapp/unbound-anchor.c, from Lukas Wunner.

26 September 2019: Wouter
- Merge #87 from hardfalcon: Fix contrib/unbound.service.in,
Drop CAP_KILL, use + prefix for ExecReload= instead.

25 September 2019: Wouter
- The unbound.conf includes are sorted ascending, for include
statements with a '*' from glob.

23 September 2019: Wouter
- Merge #85 for #84 from sam-lunt: Add kill capability to systemd
service file to fix that systemctl reload fails.

20 September 2019: Wouter
- Merge #82 from hardfalcon: Downgrade CAP_NET_ADMIN to CAP_NET_RAW
in unbound.service.
- Merge #81 from Maryse47: Consistently use /dev/urandom instead
of /dev/random in scripts and docs.
- Merge #83 from Maryse47: contrib/unbound.service.in: do not fork
into the background.

19 September 2019: Wouter
- Fix #78: Memory leak in outside_network.c.
- Merge pull request #76 from Maryse47: Improvements and fixes for
systemd unbound.service.
- oss-fuzz badge on README.md.
- Fix fix for #78 to also free service callback struct.
- Fix for oss-fuzz build warning.
- Fix wrong response ttl for prepended short CNAME ttls, this would
create a wrong zero_ttl response count with serve-expired enabled.
- Merge #80 from stasic: Improve wording in man page.

11 September 2019: Wouter
- Use explicit bzero for wiping clear buffer of hash in cachedb,
reported by Eric Sesterhenn from X41 D-Sec.

9 September 2019: Wouter
- Fix #72: configure --with-syslog-facility=LOCAL0-7 with default
LOG_DAEMON (as before) can set the syslog facility that the server
uses to log messages.

4 September 2019: Wouter
- Fix #71: fix openssl error squelch commit compilation error.

3 September 2019: Wouter
- squelch DNS over TLS errors 'ssl handshake failed crypto error'
on low verbosity, they show on verbosity 3 (query details), because
there is a high volume and the operator cannot do anything for the
remote failure. Specifically filters the high volume errors.

2 September 2019: Wouter
- ipset module #28: log that an address is added, when verbosity high.
- ipset: refactor long routine into three smaller ones.
- updated Makefile dependencies.

23 August 2019: Wouter
- Fix contrib/fastrpz.patch asprintf return value checks.

22 August 2019: Wouter
- Fix that pkg-config is setup before --enable-systemd needs it.
- 1.9.3rc2 release candidate tag. And this became the 1.9.3 release.
Master is 1.9.4 in development.

21 August 2019: Wouter
- Fix log_dns_msg to log irrespective of minimal responses config.

19 August 2019: Ralph
- Document limitation of pidfile removal outside of chroot directory.

16 August 2019: Wouter
- Fix unittest valgrind false positive uninitialised value report,
where if gcc 9.1.1 uses -O2 (but not -O1) then valgrind 3.15.0
issues an uninitialised value for the token buffer at the str2wire.c
rrinternal_get_owner() strcmp with the '@' value. Rewritten to use
straight character comparisons removes the false positive. Also
valgrinds --expensive-definedness-checks=yes can stop this false
positive.
- Please doxygen's parser for "@" occurrence in doxygen comment.
- Fixup contrib/fastrpz.patch
- Remove warning about unknown cast-function-type warning pragma.

15 August 2019: Wouter
- iana portlist updated.
- Fix autotrust temp file uniqueness windows compile.
- avoid warning about upcast on 32bit systems for autotrust.
- escape commandline contents for -V.
- Fix character buffer size in ub_ctx_hosts.
- 1.9.3rc1 release candidate tag.
- Option -V prints if TCP fastopen is available.

14 August 2019: George
- Fix #59, when compiled with systemd support check that we can properly
communicate with systemd through the `NOTIFY_SOCKET`.

14 August 2019: Wouter
- Generate configlexer with newer flex.
- Fix warning for unused variable for compilation without systemd.

12 August 2019: George
- Introduce `-V` option to print the version number and build options.
Previously reported build options like linked libs and linked modules
are now moved from `-h` to `-V` as well for consistency.
- PACKAGE_BUGREPORT now also includes link to GitHub issues.

1 August 2019: Wouter
- For #52 #53, second context does not close logfile override.
- Fix #52 #53, fix for example fail program.
- Fix to return after failed auth zone http chunk write.
- Fix to remove unused test for task_probe existance.
- Fix to timeval_add for remaining second in microseconds.
- Check repinfo in worker_handle_request, if null, drop it.

29 July 2019: Wouter
- Add verbose log message when auth zone file is written, at level 4.
- Add hex print of trust anchor pointer to trust anchor file temp
name to make it unique, for libunbound created multiple contexts.

23 July 2019: Wouter
- Fix question section mismatch in local zone redirect.

19 July 2019: Wouter
- Fix #49: Set no renegotiation on the SSL context to stop client
session renegotiation.

12 July 2019: Wouter
- Fix #48: Unbound returns additional records on NODATA response,
if minimal-responses is enabled, also the additional for negative
responses is removed.

9 July 2019: Ralph
- Fix in respip addrtree selection. Absence of addr_tree_init_parents()
call made it impossible to go up the tree when the matching netmask is
too specific.

5 July 2019: Ralph
- Fix for possible assertion failure when answering respip CNAME from
cache.

25 June 2019: Wouter
- For #45, check that 127.0.0.1 and ::1 are not used in unbound.conf
when do-not-query-localhost is turned on, or at default on,
unbound-checkconf prints a warning if it is found in forward-addr or
stub-addr statements.

24 June 2019: Wouter
- Fix memleak in unit test, reported from the clang 8.0 static analyzer.

18 June 2019: Wouter
- PR #28: IPSet module, by Kevin Chou. Created a module to support
the ipset that could add the domain's ip to a list easily.
Needs libmnl, and --enable-ipset and config it, doc/README.ipset.md.
- Fix to omit RRSIGs from addition to the ipset.
- Fix to make unbound-control with ipset, remove unused variable,
use unsigned type because of comparison, and assign null instead
of compare with it. Remade lex and yacc output.
- make depend
- Added documentation to the ipset files (for doxygen output).
- Merge PR #6: Python module: support multiple instances
- Merge PR #5: Python module: define constant MODULE_RESTART_NEXT
- Merge PR #4: Python module: assign something useful to the
per-query data store 'qdata'
- Fix python dict reference and double free in config.

17 June 2019: Wouter
- Master contains version 1.9.3 in development.
- Fix #39: In libunbound, leftover logfile is close()d unpredictably.
- Fix for #24: Fix abort due to scan of auth zone masters using old
address from previous scan.

12 June 2019: Wouter
- Fix another spoolbuf storage code point, in prefetch.
- 1.9.2rc3 release candidate tag. Which became the 1.9.2 release
on 17 June 2019.

11 June 2019: Wouter
- Fix that fixes the Fix that spoolbuf is not used to store tcp
pipelined response between mesh send and callback end, this fixes
error cases that did not use the correct spoolbuf.
- 1.9.2rc2 release candidate tag.

6 June 2019: Wouter
- 1.9.2rc1 release candidate tag.

4 June 2019: Wouter
- iana portlist updated.

29 May 2019: Wouter
- Fix to guard _OPENBSD_SOURCE from redefinition.

28 May 2019: Wouter
- Fix to define _OPENBSD_SOURCE to get reallocarray on NetBSD.
- gitignore config.h.in~.

27 May 2019: Wouter
- Fix double file close in tcp pipelined response code.

24 May 2019: Wouter
- Fix that spoolbuf is not used to store tcp pipelined response
between mesh send and callback end.

20 May 2019: Wouter
- Note that so-reuseport at extreme load is better turned off,
otherwise queries are not distributed evenly, on Linux 4.4.x.

16 May 2019: Wouter
- Fix #31: swig 4.0 and python module.

13 May 2019: Wouter
- Squelch log messages from tcp send about connection reset by peer.
They can be enabled with verbosity at higher values for diagnosing
network connectivity issues.
- Attempt to fix malformed tcp response.

9 May 2019: Wouter
- Revert fix for oss-fuzz, error is in that build script that
unconditionally includes .o files detected by configure, also
when the machine architecture uses different LIBOBJS files.

8 May 2019: Wouter
- Attempt to fix build failure in oss-fuzz because of reallocarray.
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14648.
Does not omit compile flags from commandline.

7 May 2019: Wouter
- Fix edns-subnet locks, in error cases the lock was not unlocked.
- Fix doxygen output error on readme markdown vignettes.

6 May 2019: Wouter
- Fix #29: Solaris 11.3 and missing symbols be64toh, htobe64.
- Fix #30: AddressSanitizer finding in lookup3.c. This sets the
hash function to use a slower but better auditable code that does
not read beyond array boundaries. This makes code better security
checkable, and is better for security. It is fixed to be slower,
but not read outside of the array.

2 May 2019: Wouter
- contrib/fastrpz.patch updated for code changes, and with git diff.
- Fix .gitignore, add pythonmod and dnstap generated files.
And unit test generated files, and generated doc files.

1 May 2019: Wouter
- Update makedist for git.
- Nicer travis output for clang analysis.
- PR #16: XoT support, AXFR over TLS, turn it on with
master: <ip>#<authname> in unbound.conf. This uses TLS to
download the AXFR (or IXFR).

25 April 2019: Wouter
- Fix wrong query name in local zone redirect answers with a CNAME,
the copy of the local alias is in unpacked form.

18 April 2019: Ralph
- Scrub RRs from answer section when reusing NXDOMAIN message for
subdomain answers.
- For harden-below-nxdomain: do not consider a name to be non-exitent
when message contains a CNAME record.

18 April 2019: Wouter
- travis build file.

16 April 2019: Wouter
- Better braces in if statement in TCP fastopen code.
- iana portlist updated.

15 April 2019: Wouter
- Fix tls write event for read state change to re-call SSL_write and
not resume the TLS handshake.

11 April 2019: George
- Update python documentation for init_standard().
- Typos.

11 April 2019: Wouter
- Fix that auth zone uses correct network type for sockets for
SOA serial probes. This fixes that probes fail because earlier
probe addresses are unreachable.
- Fix that auth zone fails over to next master for timeout in tcp.
- Squelch SSL read and write connection reset by peer and broken pipe
messages. Verbosity 2 and higher enables them.

8 April 2019: Wouter
- Fix to use event_assign with libevent for thread-safety.
- verbose information about auth zone lookup process, also lookup
start, timeout and fail.
- Fix #17: Add python module example from Jan Janak, that is a
plugin for the Unbound DNS resolver to resolve DNS records in
multicast DNS [RFC 6762] via Avahi. The plugin communicates
with Avahi via DBus. The comment section at the beginning of
the file contains detailed documentation.
- Fix to wipe ssl ticket keys from memory with explicit_bzero,
if available.

5 April 2019: Wouter
- Fix to reinit event structure for accepted TCP (and TLS) sockets.

4 April 2019: Wouter
- Fix spelling error in log output for event method.

3 April 2019: Wouter
- Move goto label in answer_from_cache to the end of the function
where it is more visible.
- Fix auth-zone NSEC3 response for wildcard nodata answers,
include the closest encloser in the answer.

2 April 2019: Wouter
- Fix auth-zone NSEC3 response for empty nonterminals with exact
match nsec3 records.
- Fix for out of bounds integers, thanks to OSTIF audit. It is in
allocation debug code.
- Fix for auth zone nsec3 ent fix for wildcard nodata.

25 March 2019: Wouter
- Fix that tls-session-ticket-keys: "" on its own in unbound.conf
disables the tls session ticker key calls into the OpenSSL API.
- Fix crash if tls-servic-pem not filled in when necessary.

21 March 2019: Wouter
- Fix #4240: Fix whitespace cleanup in example.conf.

19 March 2019: Wouter
- add type CAA to libpyunbound (accessing libunbound from python).

18 March 2019: Wouter
- Add log message, at verbosity 4, that says the query is encrypted
with TLS, if that is enabled for the query.
- Fix #4239: set NOTIMPL when deny-any is enabled, for RFC8482.

7 March 2019: Wouter
- Fix for #4233: guard use of NDEBUG, so that it can be passed in
CFLAGS into configure.

branches: 1.1.1.4.2;
Import 1.9.1:

1 March 2019: Wouter
- output forwarder log in ssl_req_order test.

28 February 2019: Wouter
- Remove memory leak on pythonmod python2 script file init.
- Remove swig gcc8 python function cast warnings, they are ignored.
- Print correct module that failed when module-config is wrong.

27 February 2019: Wouter
- Fix #4229: Unbound man pages lack information, about access-control
order and local zone tags, and elements in views.
- Fix #14: contrib/unbound.init: Fix wrong comparison judgment
before copying.
- Fix for python module on Windows, fix fopen.

25 February 2019: Wouter
- Fix #4227: pair event del and add for libevent for tcp_req_info.

21 February 2019: Wouter
- Fix the error for unknown module in module-config is understandable,
and explains it was not compiled in and where to see the list.
- In example.conf explain where to put cachedb module in module-config.
- In man page and example config explain that most modules have to
be listed at the start of module-config.

20 February 2019: Wouter
- Fix pythonmod include and sockaddr_un ifdefs for compile on
Windows, and for libunbound.

18 February 2019: Wouter
- Print query name with ip_ratelimit exceeded log lines.
- Spaces instead of tabs in that log message.
- Print query name and IP address when domain rate limit exceeded.

14 February 2019: Wouter
- Fix capsforid canonical sort qsort callback.

11 February 2019: Wouter
- Note default for module-config in man page.
- Fix recursion lame test for qname minimisation asked queries,
that were not present in the set of prepared answers.
- Fix #13: Remove left-over requirements on OpenSSL >= 1.1.0 for
cert name matching, from man page.
- make depend, with newer gcc, nicer layout.

7 February 2019: Wouter
- Fix #4206: OpenSSL 1.0.2 hostname verification for FreeBSD 11.2.
- Fix that qname minimisation does not skip a label when missing
nameserver targets need to be fetched.
- Fix #4225: clients seem to erroneously receive no answer with
DNS-over-TLS and qname-minimisation.

4 February 2019: Wouter
- Fix that log-replies prints the correct name for local-alias
names, for names that have a CNAME in local-data configuration.
It logs the original query name, not the target of the CNAME.
- Add local-zone type inform_redirect, which logs like type inform,
and redirects like type redirect.
- Perform canonical sort for 0x20 capsforid compare of replies,
this sorts rrsets in the authority and additional section before
comparison, so that out of order rrsets do not cause failure.

31 January 2019: Wouter
- Set ub_ctx_set_tls call signature in ltrace config file for
libunbound in contrib/libunbound.so.conf.
- improve documentation for tls-service-key and forward-first.
- #10: fixed pkg-config operations, PKG_PROG_PKG_CONFIG moved out of
conditional section, fixes systemd builds, from Enrico Scholz.
- #9: For openssl 1.0.2 use the CRYPTO_THREADID locking callbacks,
still supports the set_id_callback previous API. And for 1.1.0
no locking callbacks are needed.
- #8: Fix OpenSSL without ENGINE support compilation.
- Wipe TLS session key data from memory on exit.

30 January 2019: Ralph
- Fix case in which query timeout can result in marking delegation
as edns_lame_known.

29 January 2019: Wouter
- Fix spelling of tls-ciphers in example.conf.in.
- Fix #4224: auth_xfr_notify.rpl test broken due to typo
- Fix locking for libunbound context setup with broken port config.

28 January 2019: Wouter
- ub_ctx_set_tls call for libunbound that enables DoT for the machines
set with ub_ctx_set_fwd. Patch from Florian Obser.
- Set build system for added call in the libunbound API.
- List example config for root zone copy locally hosted with auth-zone
as suggested from draft-ietf-dnsop-7706-bis-02. But with updated
B root address.
- set version to 1.9.0 for release. And this was released with the
spelling for tls-ciphers fix as 1.9.0 on Feb 5. Trunk has 1.9.1 in
development.

25 January 2019: Wouter
- Fix that tcp for auth zone and outgoing does not remove and
then gets the ssl read again applied to the deleted commpoint.
- updated contrib/fastrpz.patch to cleanly diff.
- no lock when threads disabled in tcp request buffer count.
- remove compile warnings from libnettle compile.
- output of newer lex 2.6.1 and bison 3.0.5.

24 January 2019: Wouter
- Newer aclocal and libtoolize used for generating configure scripts,
aclocal 1.16.1 and libtoolize 2.4.6.
- Fix unit test for python 3.7 new keyword 'async'.
- clang analysis fixes, assert arc4random buffer in init,
no check for already checked delegation pointer in iterator,
in testcode check for NULL packet matches, in perf do not copy
from NULL start list when growing capacity. Adjust host and file
only when present in test header read to please checker. In
testcode for unknown macro operand give zero result. Initialise the
passed argv array in test code. In test code add EDNS data
segment copy only when nonempty.
- Patch from Florian Obser fixes some compiler warnings:
include mini_event.h to have a prototype for mini_ev_cmp
include edns.h to have a prototype for apply_edns_options
sldns_wire2str_edns_keepalive_print is only called in the wire2str,
module declare it static to get rid of compiler warning:
no previous prototype for function
infra_find_ip_ratedata() is only called in the infra module,
declare it static to get rid of compiler warning:
no previous prototype for function
do not shadow local variable buf in authzone
auth_chunks_delete and az_nsec3_findnode are only called in the
authzone module, declare them static to get rid of compiler warning:
no previous prototype for function...
copy_rrset() is only called in the respip module, declare it
static to get rid of compiler warning:
no previous prototype for function 'copy_rrset'
no need for another variable "r"; gets rid of compiler warning:
declaration shadows a local variable in libunbound.c
no need for another variable "ns"; gets rid of compiler warning:
declaration shadows a local variable in iterator.c
- Moved includes and make depend.

23 January 2019: Wouter
- Patch from Manabu Sonoda with tls-ciphers and tls-ciphersuites
options for unbound.conf.
- Fixes for the patch, and man page entry.
- Fix configure to detect SSL_CTX_set_ciphersuites, for better
library compatibility when compiling.
- Patch for TLS session resumption from Manabu Sonoda,
enable with tls-session-ticket-keys in unbound.conf.
- Fixes for patch (includes, declarations, warnings). Free at end
and keep config options in order read from file to keep the first
one as the first one.
- Fix for IXFR fallback to reset counter when IXFR does not timeout.

22 January 2019: Wouter
- Fix space calculation for tcp req buffer size.
- Doc for stream-wait-size and unit test.
- unbound-control stats has mem.streamwait that counts TCP and TLS
waiting result buffers.
- Fix for #4219: secondaries not updated after serial change, unbound
falls back to AXFR after IXFR gives several timeout failures.
- Fix that auth zone after IXFR fallback tries the same master.

21 January 2019: Wouter
- Fix tcp idle timeout test, for difference in the tcp reply code.
- Unit test for tcp request reorder and timeouts.
- Unit tests for ssl out of order processing.
- Fix that multiple dns fragments can be carried in one TLS frame.
- Add stream-wait-size: 4m config option to limit the maximum
memory used by waiting tcp and tls stream replies. This avoids
a denial of service where these replies use up all of the memory.

17 January 2019: Wouter
- For caps-for-id fallback, use the whitelist to avoid timeout
starting a fallback sequence for it.
- increase mesh max activation count for capsforid long fetches.

16 January 2019: Ralph
- Get ready for the DNS flag day: remove EDNS lame procedure, do not
re-query without EDNS after timeout.

15 January 2019: Wouter
- In the out of order processing, reset byte count for (potential)
partial read.
- Review fixes in out of order processing.

14 January 2019: Wouter
- streamtcp option -a send queries consecutively and prints answers
as they arrive.
- Fix for out of order processing administration quit cleanup.
- unit test for tcp out of order processing.

11 January 2019: Wouter
- Initial commit for out-of-order processing for TCP and TLS.

9 January 2019: Wouter
- Log query name for looping module errors.

8 January 2019: Wouter
- Fix syntax in comment of local alias processing.
- Fix NSEC3 record that is returned in wildcard replies from
auth-zone zones with NSEC3 and wildcards.

7 January 2019: Wouter
- On FreeBSD warn if systcl settings do not allow server TCP FASTOPEN,
and server tcp fastopen is enabled at compile time.
- Document interaction between the tls-upstream option in the server
section and forward-tls-upstream option in the forward-zone sections.
- Add contrib/unbound-fuzzme.patch from Jacob Hoffman-Andrews,
the patch adds a program used for fuzzing.

12 December 2018: Wouter
- Fix for crash in dns64 module if response is null.

10 December 2018: Wouter
- Fix config parser memory leaks.
- ip-ratelimit-factor of 1 allows all traffic through, instead of the
previous blocking everything.
- Fix for FreeBSD port make with dnscrypt and dnstap enabled.
- Fix #4206: support openssl 1.0.2 for TLS hostname verification,
alongside the 1.1.0 and later support that is already there.
- Fixup openssl 1.0.2 compile

6 December 2018: Wouter
- Fix dns64 allocation in wrong region for returned internal queries.

3 December 2018: Wouter
- Fix icon, no ragged edges and nicer resolutions available, for eg.
Win 7 and Windows 10 display.
- cache-max-ttl also defines upperbound of initial TTL in response.

30 November 2018: Wouter
- Patch for typo in unbound.conf man page.
- log-tag-queryreply: yes in unbound.conf tags the log-queries and
log-replies in the log file for easier log filter maintenance.

29 November 2018: Wouter
- iana portlist updated.
- Fix chroot auth-zone fix to remove chroot prefix.
- tag for 1.8.2rc1, which became 1.8.2 on 4 dec 2018, with icon
updated. Trunk contains 1.8.3 in development.
Which became 1.8.3 on 11 december with only the dns64 fix of 6 dec.
Trunk then became 1.8.4 in development.
- Fix that unbound-checkconf does not complains if the config file
is not placed inside the chroot.
- Refuse to start with no ports.
- Remove clang analysis warnings.

28 November 2018: Wouter
- Fix leak in chroot fix for auth-zone.
- Fix clang analysis for outside directory build test.

27 November 2018: Wouter
- Fix DNS64 to not store intermediate results in cache, this avoids
other threads from picking up the wrong data. The module restores
the previous no_cache_store setting when the the module is finished.
- Fix #4208: 'stub-no-cache' and 'forward-no-cache' not work.
- New and better fix for Fix #4193: Fix that prefetch failure does
not overwrite valid cache entry with SERVFAIL.
- auth-zone give SERVFAIL when expired, fallback activates when
expired, and this is documented in the man page.
- stat count SERVFAIL downstream auth-zone queries for expired zones.
- Put new logos into windows installer.
- Fix windows compile for new rrset roundrobin fix.
- Update contrib fastrpz patch for latest release.

26 November 2018: Wouter
- Fix to not set GLOB_NOSORT so the unbound.conf include: files are
sorted and in a predictable order.
- Fix #4193: Fix that prefetch failure does not overwrite valid cache
entry with SERVFAIL.
- Add unbound-control view_local_datas command, like local_datas.
- Fix that unbound-control can send file for view_local_datas.

22 November 2018: Wouter
- With ./configure --with-pyunbound --with-pythonmodule
PYTHON_VERSION=3.6 or with 2.7 unbound can compile and unit tests
succeed for the python module.
- pythonmod logs the python error and traceback on failure.
- ignore debug python module for test in doxygen output.
- review fixes for python module.
- Fix #4209: Crash in libunbound when called from getdns.
- auth zone zonefiles can be in a chroot, the chroot directory
components are removed before use.
- Fix that empty zonefile means the zonefile is not set and not used.
- make depend.

21 November 2018: Wouter
- Scrub NS records from NODATA responses as well.

20 November 2018: Wouter
- Scrub NS records from NXDOMAIN responses to stop fragmentation
poisoning of the cache.
- Add patch from Jan Vcelak for pythonmod,
add sockaddr_storage getters, add support for query callbacks,
allow raw address access via comm_reply and update API documentation.
- Removed compile warnings in pythonmod sockaddr routines.

19 November 2018: Wouter
- Support SO_REUSEPORT_LB in FreeBSD 12 with the so-reuseport: yes
option in unbound.conf.

6 November 2018: Ralph
- Bugfix min-client-subnet-ipv6

25 October 2018: Ralph
- Add min-client-subnet-ipv6 and min-client-subnet-ipv4 options.

25 October 2018: Wouter
- Fix #4191: NXDOMAIN vs SERVFAIL during dns64 PTR query.
- Fix #4190: Please create a "ANY" deny option, adds the option
deny-any: yes in unbound.conf. This responds with an empty message
to queries of type ANY.
- Fix #4141: More randomness to rrset-roundrobin.
- Fix #4132: Openness/closeness of RANGE intervals in rpl files.
- Fix #4126: RTT_band too low on VSAT links with 600+ms latency,
adds the option unknown-server-time-limit to unbound.conf that
can be increased to avoid the problem.
- remade makefile dependencies.
- Fix #4152: Logs shows wrong time when using log-time-ascii: yes.

24 October 2018: Ralph
- Add markdel function to ECS slabhash.
- Limit ECS scope returned to client to the scope used for caching.
- Make lint like previous #4154 fix.

22 October 2018: Wouter
- Fix #4192: unbound-control-setup generates keys not readable by
group.
- check that the dnstap socket file can be opened and exists, print
error if not.
- Fix #4154: make ECS_MAX_TREESIZE configurable, with
the max-ecs-tree-size-ipv4 and max-ecs-tree-size-ipv6 options.

22 October 2018: Ralph
- Change fast-server-num default to 3.

8 October 2018: Ralph
- Add fast-server-permil and fast-server-num options.
- Deprecate low-rtt and low-rtt-permil options.

8 October 2018: Wouter
- Squelch log of failed to tcp initiate after TCP Fastopen failure.

5 October 2018: Wouter
- Squelch EADDRNOTAVAIL errors when the interface goes away,
this omits 'can't assign requested address' errors unless
verbosity is set to a high value.
- Set default for so-reuseport to no for FreeBSD. It is enabled
by default for Linux and DragonFlyBSD. The setting can
be configured in unbound.conf to override the default.
- iana port update.

2 October 2018: Wouter
- updated contrib/fastrpz.patch to apply for this version
- dnscrypt.c removed sizeof to get array bounds.
- Fix testlock code to set noreturn on error routine.
- Remove unused variable from contrib fastrpz/rpz.c and
remove unused diagnostic pragmas that themselves generate warnings
- clang analyze test is used only when assertions are enabled.

1 October 2018: Wouter
- tag for release 1.8.1rc1. Became release 1.8.1 on 8 oct, with
fastrpz.patch fix included. Trunk has 1.8.2 in development.

27 September 2018: Wouter
- Fix #4188: IPv6 forwarders without ipv6 result in SERVFAIL, fixes
qname minimisation with a forwarder when connectivity has issues
from rejecting responses.

25 September 2018: Wouter
- Perform TLS SNI indication of the host that is being contacted
for DNS over TLS service. It sets the configured tls auth name.
This is useful for hosts that apart from the DNS over TLS services
also provide other (web) services.
- Fix #4149: Add SSL cleanup for tcp timeout.

17 September 2018: Wouter
- Fix compile on Mac for unbound, provide explicit_bzero when libc
does not have it.
- Fix unbound for openssl in FIPS mode, it uses the digests with
the EVP call contexts.
- Fix that with harden-below-nxdomain and qname minisation enabled
some iterator states for nonresponsive domains can get into a
state where they waited for an empty list.
- Stop UDP to TCP failover after timeouts that causes the ping count
to be reset by the TCP time measurement (that exists for TLS),
because that causes the UDP part to not be measured as timeout.
- Fix #4156: Fix systemd service manager state change notification.

13 September 2018: Wouter
- Fix seed for random backup code to use explicit zero when wiped.
- exit log routine is annotated as noreturn function.
- free memory leaks in config strlist and str2list insert functions.
- do not move unused argv variable after getopt.
- Remove unused if clause in testcode.
- in testcode, free async ids, initialise array, and check for null
pointer during test of the test. And use exit for return to note
irregular program stop.
- Free memory leak in config strlist append.
- make sure nsec3 comparison salt is initialized.
- unit test has clang analysis.
- remove unused variable assignment from iterator scrub routine.
- check for null in delegation point during iterator refetch
in forward zone.
- neater pointer cast in libunbound context quit routine.
- initialize statistics totals for printout.
- in authzone check that node exists before adding rrset.
- in unbound-anchor, use readwrite memory BIO.
- assertion in autotrust that packed rrset is formed correctly.
- Fix memory leak when message parse fails partway through copy.
- remove unused udpsize assignment in message encode.
- nicer bio free code in unbound-anchor.
- annotate exit functions with noreturn in unbound-control.

11 September 2018: Wouter
- Fixed unused return value warnings in contrib/fastrpz.patch for
asprintf.
- Fix to squelch respip warning in unit test, it is printed at
higher verbosity settings.
- Fix spelling errors.
- Fix initialisation in remote.c

10 September 2018: Wouter
- 1.8.1 in svn trunk. (changes from 4,5,.. sep apply).
- iana port update.

5 September 2018: Wouter
- Fix spelling error in header, from getdns commit by Andreas Gelmini.

4 September 2018: Ralph
- More explicitly mention the type of ratelimit when applying
ip-ratelimit.

4 September 2018: Wouter
- Tag for 1.8.0rc1 release, became 1.8.0 release on 10 Sep 2018.

31 August 2018: Wouter
- Disable minimal-responses in subnet unit tests.

30 August 2018: Wouter
- Fix that a local-zone with a local-zone-type that is transparent
in a view with view-first, makes queries check for answers from the
local-zones defined outside of views.

28 August 2018: Ralph
- Disable minimal-responses in ipsecmod unit tests.
- Added serve-expired-ttl and serve-expired-ttl-reset options.

27 August 2018: Wouter
- Set defaults to yes for a number of options to increase speed and
resilience of the server. The so-reuseport, harden-below-nxdomain,
and minimal-responses options are enabled by default. They used
to be disabled by default, waiting to make sure they worked. They
are enabled by default now, and can be disabled explicitly by
setting them to "no" in the unbound.conf config file. The reuseport
and minimal options increases speed of the server, and should be
otherwise harmless. The harden-below-nxdomain option works well
together with the recently default enabled qname minimisation, this
causes more fetches to use information from the cache.
- next release is called 1.8.0.
- Fix lintflags for lint on FreeBSD.

22 August 2018: George
- #4140: Expose repinfo (comm_reply) to the inplace_callbacks. This
gives access to reply information for the client's communication
point when the callback is called before the mesh state (modules).
Changes to C and Python's inplace_callback signatures were also
necessary.

21 August 2018: Wouter
- log-local-actions: yes option for unbound.conf that logs all the
local zone actions, a patch from Saksham Manchanda (Secure64).
- #4146: num.query.subnet and num.query.subnet_cache counters.
- Fix only misc failure from log-servfail when val-log-level is not
enabled.

17 August 2018: Ralph
- Fix classification for QTYPE=CNAME queries when QNAME minimisation is
enabled.

17 August 2018: Wouter
- Set libunbound to increase current, because the libunbound change
to the event callback function signature. That needs programs,
that use it, to recompile against the new header definition.
- print servfail info to log as error.
- added more servfail printout statements, to the iterator.
- log-servfail: yes prints log lines that say why queries are
returning SERVFAIL to clients.

16 August 2018: Wouter
- Fix warning on compile without threads.
- Fix contrib/fastrpz.patch.

15 August 2018: Wouter
- Fix segfault in auth-zone read and reorder of RRSIGs.

14 August 2018: Wouter
- Fix that printout of error for cycle targets is a verbosity 4
printout and does not wrongly print it is a memory error.
- Upgraded crosscompile script to include libunbound DLL in the
zipfile.

10 August 2018: Wouter
- Fix #4144: dns64 module caches wrong (negative) information.

9 August 2018: Wouter
- unbound-checkconf checks if modules exist and prints if they are
not compiled in the name of the wrong module.
- document --enable-subnet in doc/README.
- Patch for stub-no-cache and forward-no-cache options that disable
caching for the contents of that stub or forward, for when you
want immediate changes visible, from Bjoern A. Zeeb.

7 August 2018: Ralph
- Make capsforid fallback QNAME minimisation aware.

7 August 2018: Wouter
- Fix #4142: unbound.service.in: improvements and fixes.
Add unit dependency ordering (based on systemd-resolved).
Add 'CAP_SYS_RESOURCE' to 'CapabilityBoundingSet' (fixes warnings
about missing privileges during startup). Add 'AF_INET6' to
'RestrictAddressFamilies' (without it IPV6 can't work). From
Guido Shanahan.
- Patch to implement tcp-connection-limit from Jim Hague (Sinodun).
This limits the number of simultaneous TCP client connections
from a nominated netblock.
- make depend, yacc, lex, doc, headers. And log the limit exceeded
message only on high verbosity, so as to not spam the logs when
it is busy.

6 August 2018: Wouter
- Fix for #4136: Fix to unconditionally call destroy in daemon.c.

3 August 2018: George
- Expose if a query (or a subquery) was ratelimited (not src IP
ratelimiting) to libunbound under 'ub_result.was_ratelimited'.
This also introduces a change to 'ub_event_callback_type' in
libunbound/unbound-event.h.
- Tidy pylib tests.

3 August 2018: Wouter
- Revert previous change for #4136: because it introduces build
problems.
- New fix for #4136: This one ignores lex without without
yylex_destroy.

1 August 2018: Wouter
- Fix to remove systemd sockaddr function check, that is not
always present. Make socket activation more lenient. But not
different when socket activation is not used.
- iana port list update.

31 July 2018: Wouter
- Patches from Jim Hague (Sinodun) for EDNS KeepAlive.
- Sort out test runs when the build directory isn't the project
root directory.
- Add config tcp-idle-timeout (default 30s). This applies to
client connections only; the timeout on TCP connections upstream
is unaffected.
- Error if EDNS Keepalive received over UDP.
- Add edns-tcp-keepalive and edns-tcp-keepalive timeout options
and implement option in client responses.
- Correct and expand manual page entries for keepalive and idle timeout.
- Implement progressive backoff of TCP idle/keepalive timeout.
- Fix 'make depend' to work when build dir is not project root.
- Add delay parameter to streamtcp, -d secs.
To be used when testing idle timeout.
- From Wouter: make depend, the dependencies in the patches did not
apply cleanly. Also remade yacc and lex.
- Fix mesh.c incompatible pointer pass.
- Please doxygen so it passes.
- Fix #4139: Fix unbound-host leaks memory on ANY.

30 July 2018: Wouter
- Fix #4136: insufficiency from mismatch of FLEX capability between
released tarball and build host.

27 July 2018: Wouter
- Fix man page, say that chroot is enabled by default.

26 July 2018: Wouter
- Fix #4135: 64-bit Windows Installer Creates Entries Under The
Wrong Registry Key, reported by Brian White.

23 July 2018: Wouter
- Fix use-systemd readiness signalling, only when use-systemd is yes
and not in signal handler.

20 July 2018: Wouter
- Fix #4130: print text describing -dd and unbound-checkconf on
config file read error at startup, the errors may have been moved
away by the startup process.
- Fix #4131: for solaris, error YY_CURRENT_BUFFER undeclared.

19 July 2018: Wouter
- Fix #4129 unbound-control error message with wrong cert permissions
is too cryptic.

17 July 2018: Wouter
- Fix #4127 unbound -h does not list -p help.
- Print error if SSL name verification configured but not available
in the ssl library.
- Fix that ratelimit and ip-ratelimit are applied after reload of
changed config file.
- Resize ratelimit and ip-ratelimit caches if changed on reload.

16 July 2018: Wouter
- Fix qname minimisation NXDOMAIN validation lookup failures causing
error_supers assertion fails.
- Squelch can't bind socket errors with Permission denied unless
verbosity is 4 or higher, for UDP outgoing sockets.

12 July 2018: Wouter
- Fix to improve systemd socket activation code file descriptor
assignment.
- Fix for 4126 that the #define for UNKNOWN_SERVER_NICENESS can be more
easily changed to adjust default rtt assumptions.

10 July 2018: Wouter
- Note in documentation that the cert name match code needs
OpenSSL 1.1.0 or later to be enabled.

6 July 2018: Wouter
- Fix documentation ambiguity for tls-win-cert in tls-upstream and
forward-tls-upstream docs.
- iana port update.
- Note RFC8162 support. SMIMEA record type can be read in by the
zone record parser.
- Fix round robin for failed addresses with prefer-ip6: yes

4 July 2018: Wouter
- Fix #4112: Fix that unbound-anchor -f /etc/resolv.conf will not pass
if DNSSEC is not enabled. New option -R allows fallback from
resolv.conf to direct queries.

3 July 2018: Wouter
- Better documentation for unblock-lan-zones and insecure-lan-zones
config statements.
- Fix permission denied printed for auth zone probe random port nrs.

2 July 2018: Wouter
- Fix checking for libhiredis printout in configure output.
- Fix typo on man page in ip-address description.
- Update libunbound/python/examples/dnssec_test.py example code to
also set the 20326 trust anchor for the root in the example code.

29 June 2018: Wouter
- dns64-ignore-aaaa: config option to list domain names for which the
existing AAAA is ignored and dns64 processing is used on the A
record.

28 June 2018: Wouter
- num.queries.tls counter for queries over TLS.
- log port number with err_addr logs.

27 June 2018: Wouter
- #4109: Fix that package config depends on python unconditionally.
- Patch, do not export python from pkg-config, from Petr Men����k.

26 June 2018: Wouter
- Partial fix for permission denied on IPv6 address on FreeBSD.
- Fix that auth-zone master reply with current SOA serial does not
stop scan of masters for an updated zone.
- Fix that auth-zone does not start the wait timer without checking
if the wait timer has already been started.

21 June 2018: Wouter
- #4108: systemd reload hang fix.
- Fix usage printout for unbound-host, hostname has to be last
argument on BSDs and Windows.

Import unbound-1.7.3

19 June 2018: Wouter
- Fix for unbound-control on Windows and set TCP socket parameters
more closely.
- Fix windows unbound-control no cert bad file descriptor error.

18 June 2018: Wouter
- Fix that control-use-cert: no works for 127.0.0.1 to disable certs.
- Fix unbound-checkconf for control-use-cert.

15 June 2018: Wouter
- tag for 1.7.3rc1.

14 June 2018: Wouter
- #4103: Fix that auth-zone does not insist on SOA record first in
file for url downloads.
- Fix that first control-interface determines if TLS is used. Warn
when IP address interfaces are used without TLS.
- Fix nettle compile.

12 June 2018: Ralph
- Don't count CNAME response types received during qname minimisation as
query restart.

12 June 2018: Wouter
- #4102 for NSD, but for Unbound. Named unix pipes do not use
certificate and key files, access can be restricted with file and
directory permissions. The option control-use-cert is no longer
used, and ignored if found in unbound.conf.
- Rename tls-additional-ports to tls-additional-port, because every
line adds one port.
- Fix buffer size warning in unit test.
- remade dependencies in the Makefile.

6 June 2018: Wouter
- Patch to fix openwrt for mac os build darwin detection in configure.

5 June 2018: Wouter
- Fix crash if ratelimit taken into use with unbound-control
instead of with unbound.conf.

4 June 2018: Wouter
- Fix deadlock caused by incoming notify for auth-zone.
- tag for 1.7.2rc1, became 1.7.2 release on 11 June 2018,
trunk is 1.7.3 in development from this point.
- #4100: Fix stub reprime when it becomes useless.

1 June 2018: Wouter
- Rename additional-tls-port to tls-additional-ports.
The older name is accepted for backwards compatibility.

30 May 2018: Wouter
- Patch from Syzdek: Add ability to ignore RD bit and treat all
requests as if the RD bit is set.

29 May 2018: Wouter
- in compat/arc4random call getentropy_urandom when getentropy fails
with ENOSYS.
- Fix that fallback for windows port.

28 May 2018: Wouter
- Fix windows tcp and tls spin on events.
- Add routine from getdns to add windows cert store to the SSL_CTX.
- tls-win-cert option that adds the system certificate store for
authenticating DNS-over-TLS connections. It can be used instead
of the tls-cert-bundle option, or with it to add certificates.

25 May 2018: Wouter
- For TCP and TLS connections that don't establish, perform address
update in infra cache, so future selections can exclude them.
- Fix that tcp sticky events are removed for closed fd on windows.
- Fix close events for tcp only.

24 May 2018: Wouter
- Fix that libunbound can do DNS-over-TLS, when configured.
- Fix that windows unbound service can use DNS-over-TLS.
- unbound-host initializes ssl (for potential DNS-over-TLS usage
inside libunbound), when ssl upstream or a cert-bundle is configured.

23 May 2018: Wouter
- Use accept4 to speed up incoming TCP (and TLS) connections,
available on Linux, FreeBSD and OpenBSD.

17 May 2018: Ralph
- Qname minimisation default changed to yes.

15 May 2018: Wouter
- Fix low-rtt-pct to low-rtt-permil, as it is parts in one thousand.

11 May 2018: Wouter
- Fix contrib/libunbound.pc for libssl libcrypto references,
from https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=226914

7 May 2018: Wouter
- Fix windows to not have sticky TLS events for TCP.
- Fix read of DNS over TLS length and data in one read call.
- Fix mesh state assertion failure due to callback removal.

3 May 2018: Wouter
- Fix that configure --with-libhiredis also turns on cachedb.
- Fix gcc 8 buffer warning in testcode.
- Fix function type cast warning in libunbound context callback type.

2 May 2018: Wouter
- Fix fail to reject dead peers in forward-zone, with ssl-upstream.

1 May 2018: Wouter
- Fix that unbound-control reload frees the rrset keys and returns
the memory pages to the system.

30 April 2018: Wouter
- Fix spelling error in man page and note defaults as no instead of
off.

26 April 2018: Wouter
- Fix for crash in daemon_cleanup with dnstap during reload,
from Saksham Manchanda.
- Also that for dnscrypt.
- tag for 1.7.1rc1 release. Became 1.7.1 release on 3 May, trunk
is from here 1.7.2 in development.

25 April 2018: Ralph
- Fix memory leak when caching wildcard records for aggressive NSEC use

24 April 2018: Wouter
- Fix contrib/fastrpz.patch for this release.
- Fix auth https for libev.

24 April 2018: Ralph
- Added root-key-sentinel support

23 April 2018: Wouter
- makedist uses bz2 for expat code, instead of tar.gz.
- Fix #4092: libunbound: use-caps-for-id lacks colon in
config_set_option.
- auth zone http download stores exact copy of downloaded file,
including comments in the file.
- Fix sldns parse failure for CDS alternate delete syntax empty hex.
- Attempt for auth zone fix; add of callback in mesh gets from
callback does not skip callback of result.
- Fix cname classification with qname minimisation enabled.
- list_auth_zones unbound-control command.

20 April 2018: Wouter
- man page documentation for dns-over-tls forward-addr '#' notation.
- removed free from failed parse case.
- Fix #4091: Fix that reload of auth-zone does not merge the zonefile
with the previous contents.
- Delete auth zone when removed from config.

19 April 2018: Wouter
- Can set tls authentication with forward-addr: IP#tls.auth.name
And put the public cert bundle in tls-cert-bundle: "ca-bundle.pem".
such as forward-addr: 9.9.9.9@853#dns.quad9.net or
1.1.1.1@853#cloudflare-dns.com
- Fix #658: unbound using TLS in a forwarding configuration does not
verify the server's certificate (RFC 8310 support).
- For addr with #authname and no @port notation, the default is 853.

18 April 2018: Wouter
- Fix auth-zone retry timer to be on schedule with retry timeout,
with backoff. Also time a refresh at the zone expiry.

17 April 2018: Wouter
- auth zone notify work.
- allow-notify: config statement for auth-zones.
- unit test for allow-notify

16 April 2018: Wouter
- Fix auth zone target lookup iterator.
- auth zone notify with prefix
- auth zone notify work.

13 April 2018: Wouter
- Fix for max include depth for authzones.
- Fix memory free on fail for $INCLUDE in authzone.
- Fix that an internal error to look up the wrong rr type for
auth zone gets stopped, before trying to send there.
- auth zone notify work.

10 April 2018: Ralph
- num.query.aggressive.NOERROR and num.query.aggressive.NXDOMAIN
statistics counters.

10 April 2018: Wouter
- documentation for low-rtt and low-rtt-pct.
- auth zone notify work.

9 April 2018: Wouter
- Fix that flush_zone sets prefetch ttl expired, so that with
serve-expired enabled it'll start prefetching those entries.
- num.query.authzone.up and num.query.authzone.down statistics counters.
- Fix downstream auth zone, only fallback when auth zone fails to
answer and fallback is enabled.
- Accept both option names with and without colon for get_option
and set_option.
- low-rtt and low-rtt-pct in unbound.conf enable the server selection
of fast servers for some percentage of the time.

5 April 2018: Wouter
- Combine write of tcp length and tcp query for dns over tls.
- nitpick fixes in example.conf.
- Fix above stub queries for type NS and useless delegation point.
- Fix unbound-control over pipe with openssl 1.1.1, the TLSv1.3
tls_choose_sigalg routine does not allow the ciphers for the pipe,
so use TLSv1.2.
- ED448 support.

3 April 2018: Wouter
- Fix #4043: make test fails due to v6 presentation issue in macOS.
- Fix unable to resolve after new WLAN connection, due to auth-zone
failing with a forwarder set. Now, auth-zone is only used for
answers (not referrals) when a forwarder is set.

29 March 2018: Ralph
- Check "result" in dup_all(), by Florian Obser.

23 March 2018: Ralph
- Fix unbound-control get_option aggressive-nsec

21 March 2018: Ralph
- Do not use cached NSEC records to generate negative answers for
domains under DNSSEC Negative Trust Anchors.

19 March 2018: Wouter
- iana port update.

16 March 2018: Wouter
- corrected a minor typo in the changelog.
- move htobe64/be64toh portability code to cachedb.c.

15 March 2018: Wouter
- Add --with-libhiredis, unbound support for a new cachedb backend
that uses a Redis server as the storage. This implementation
depends on the hiredis client library (https://redislabs.com/lp/hiredis/).
And unbound should be built with both --enable-cachedb and
--with-libhiredis[=PATH] (where $PATH/include/hiredis/hiredis.h
should exist). Patch from Jinmei Tatuya (Infoblox).
- Fix #3817: core dump happens in libunbound delete, when queued
servfail hits deleted message queue.
- Create additional tls service interfaces by opening them on other
portnumbers and listing the portnumbers as additional-tls-port: nr.

13 March 2018: Wouter
- Fix typo in documentation.
- Fix #3736: Fix 0 TTL domains stuck on SERVFAIL unless manually
flushed with serve-expired on.

12 March 2018: Wouter
- Added documentation for aggressive-nsec: yes.
- tag 1.7.0rc3. That became the 1.7.0 release on 15 Mar, trunk
now has 1.7.1 in development.
- Fix #3727: Protocol name is TLS, options have been renamed but
documentation is not consistent.
- Check IXFR start serial.

9 March 2018: Wouter
- Fix #3598: Fix swig build issue on rhel6 based system.
configure --disable-swig-version-check stops the swig version check.

8 March 2018: Wouter
- tag 1.7.0rc2.

7 March 2018: Wouter
- Fixed contrib/fastrpz.patch, even though this already applied
cleanly for me, now also for others.
- patch to log creates keytag queries, from A. Schulze.
- patch suggested by Debian lintian: allow to -> allow one to, from
A. Schulze.
- Attempt to remove warning about trailing whitespace.

6 March 2018: Wouter
- Reverted fix for #3512, this may not be the best way forward;
although it could be changed at a later time, to stay similar to
other implementations.
- svn trunk contains 1.7.0, this is the number for the next release.
- Fix for windows compile.
- tag 1.7.0rc1.

5 March 2018: Wouter
- Fix to check define of DSA for when openssl is without deprecated.
- iana port update.
- Fix #3582: Squelch address already in use log when reuseaddr option
causes same port to be used twice for tcp connections.

27 February 2018: Wouter
- Fixup contrib/fastrpz.patch so that it applies.
- Fix compile without threads, and remove unused variable.
- Fix compile with staticexe and python module.
- Fix nettle compile.

22 February 2018: Ralph
- Save wildcard RRset from answer with original owner for use in
aggressive NSEC.

21 February 2018: Wouter
- Fix #3512: unbound incorrectly reports SERVFAIL for CAA query
when there is a CNAME loop.
- Fix validation for CNAME loops. When it detects a cname loop,
by finding the cname, cname in the existing list, it returns
the partial result with the validation result up to then.
- more robust cachedump rrset routine.

19 February 2018: Wouter
- Fix #3505: Documentation for default local zones references
wrong RFC.
- Fix #3494: local-zone noview can be used to break out of the view
to the global local zone contents, for queries for that zone.
- Fix for more maintainable code in localzone.

16 February 2018: Wouter
- Fixes for clang static analyzer, the missing ; in
edns-subnet/addrtree.c after the assert made clang analyzer
produce a failure to analyze it.

13 February 2018: Ralph
- Aggressive NSEC tests

13 February 2018: Wouter
- tls-cert-bundle option in unbound.conf enables TLS authentication.
- iana port update.

12 February 2018: Wouter
- Unit test for auth zone https url download.

12 February 2018: Ralph
- Added tests with wildcard expanded NSEC records (CVE-2017-15105 test)
- Processed aggressive NSEC code review remarks Wouter

8 February 2018: Ralph
- Aggressive use of NSEC implementation. Use cached NSEC records to
generate NXDOMAIN, NODATA and positive wildcard answers.

8 February 2018: Wouter
- iana port update.
- auth zone url config.

5 February 2018: Wouter
- Fix #3451: dnstap not building when you have a separate build dir.
And removed protoc warning, set dnstap.proto syntax to proto2.
- auth-zone provides a way to configure RFC7706 from unbound.conf,
eg. with auth-zone: name: "." for-downstream: no for-upstream: yes
fallback-enabled: yes and masters or a zonefile with data.

2 February 2018: Wouter
- Fix unfreed locks in log and arc4random at exit of unbound.
- unit test with valgrind
- Fix lock race condition in dns cache dname synthesis.
- lock subnet new item before insertion to please checklocks,
no modification of critical regions outside of lock region.

1 February 2018: Wouter
- fix unaligned structure making a false positive in checklock
unitialised memory.

29 January 2018: Ralph
- Use NSEC with longest ce to prove wildcard absence.
- Only use *.ce to prove wildcard absence, no longer names.

25 January 2018: Wouter
- ltrace.conf file for libunbound in contrib.

23 January 2018: Wouter
- Fix that unbound-checkconf -f flag works with auto-trust-anchor-file
for startup scripts to get the full pathname(s) of anchor file(s).
- Print fatal errors about remote control setup before log init,
so that it is printed to console.

22 January 2018: Wouter
- Accept tls-upstream in unbound.conf, the ssl-upstream keyword is
also recognized and means the same. Also for tls-port,
tls-service-key, tls-service-pem, stub-tls-upstream and
forward-tls-upstream.
- Fix #3397: Fix that cachedb could return a partial CNAME chain.
- Fix #3397: Fix that when the cache contains an unsigned DNAME in
the middle of a cname chain, a result without the DNAME could
be returned.