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.