Log message:
Update net/unbound to version 1.21.0.

Pkgsrc changes:
 * Adjust checksums

Upstream changes:

Features
- Fix #1071: [FR] Clear both in-memory and cachedb module cache with
  `unbound-control flush*` commands.
- Fix #144: Port ipset to BSD pf tables.
- Add dnstap-sample-rate that logs only 1/N messages, for high volume
  server environments. Thanks Dan Luther.
- Add root key 38696 from 2024 for DNSSEC validation. It is added
  to the default root keys in unbound-anchor. The content can be
  inspected with `unbound-anchor -l`.
- Merge #1090: Cookie secret file. Adds
  `cookie-secret-file: "unbound_cookiesecrets.txt"` option to store
  cookie secrets for EDNS COOKIE secret rollover. The remote control
  add_cookie_secret, activate_cookie_secret and drop_cookie_secret
  commands can be used for rollover, the command print_cookie_secrets
  shows the values in use.

Bug Fixes
- Fix CAMP issues with global quota. Thanks to Huayi Duan, Marco
  Bearzi, Jodok Vieli, and Cagin Tanir from NetSec group, ETH Zurich.
- Fix CacheFlush issues with limit on NS RRs. Thanks to Yehuda Afek,
  Anat Bremler-Barr, Shoham Danino and Yuval Shavitt (Tel-Aviv
  University and Reichman University).
- Merge #1062: Fix potential overflow bug while parsing port in
  function cfg_mark_ports.
- Fix for #1062: declaration before statement, avoid print of null,
  and redundant check for array size.
- Fix to squelch udp connect errors in the log at low verbosity about
  invalid argument for IPv6 link local addresses.
- Fix when the mesh jostle is exceeded that nameserver targets are
  marked as resolved, so that the lookup is not stuck on the
  requestlist.
- Add missing common functions to tdir tests.
- Merge #1070: Fix rtt assignement for low values of
  infra-cache-max-rtt.
- Merge #1069: Fix unbound-control stdin commands for multi-process
  Unbounds.
- Fix unbound-control commands that read stdin in multi-process
  operation (local_zones_remove, local_zones, local_datas_remove,
  local_datas, view_local_datas_remove, view_local_datas). They will
  be properly distributed to all processes. dump_cache and load_cache
  are no longer supported in multi-process operation.
- Remove testdata/remote-threaded.tdir. testdata/09-unbound-control.tdir
  now checks both single and multi process/thread operation.
- Merge #1073: fix null pointer dereference issue in function
  ub_ctx_set_fwd.
- Fix to print a parse error when config is read with no name for
  a forward-zone, stub-zone or view.
- Fix for parse end of forward-zone, stub-zone and view.
- Fix for #1064: Fix that cachedb expired messages are considered
  insecure, and thus can be served to clients when dnssec is enabled.
- Fix #1059: Intermittent DNS blocking failure with local-zone and
  always_nxdomain. Addition of local_zones dynamically via
  unbound-control was not finding the zone's parent correctly.
- Fix #1064: Unbound 1.20 Cachedb broken?
- Fix unused variable warning on compilation with no thread support.
- unbound-control-setup: check openssl availability before doing
  anything, patch from Michael Tokarev.
- Update patch to remove 'command' shell builtin and update error
  text.
- Fix to enable that SERVFAIL is cached, for a short period, for more
  cases. In the cases where limits are exceeded.
- Fix spelling of tcp-idle-timeout docs, from Michael Tokarev.
- Merge #1078: Only check old pid if no username.
- Fix #1079: tags from tagged rpz zones are no longer honored after
  upgrade from 1.19.3 to 1.20.0.
- Fix for #1079: fix RPZ taglist in iterator callback that no client
  info is like no taglist intersection.
- Fix to squelch connection reset by peer errors from log. And fix
  that the tcp read errors are labeled as initial for the first calls.
- Merge #1080: AddressSanitizer detection in tdir tests and memory leak
  fixes.
- Fix memory leak when reload_keep_cache is used and num-threads
  changes.
- Fix memory leak on exit for unbound-dnstap-socket; creates false
  negatives during testing.
- Fix memory leak in setup of dsa sig.
- Fix typos for 'the the' in text.
- Fix validation for repeated use of a DNAME record.
- Add unit test for validation of repeated use of a DNAME record.
- Fix #1091: Build fails with OpenSSL >= 3.0 built with
  OPENSSL_NO_DEPRECATED.
- Fix #1092: Ubuntu 22.04 Jammy fails to compile unbound 1.20.0; by
  adding helpful text for the Python interpreter version and allowing
  the default pkg-config unavailability error message to be shown.
- Fix pkg-config availability check in dnstap/dnstap.m4 and
  systemd.m4.
- Explicitly set the RD bit for the mesh query flags when prefetching.
  These queries have no waiting client but they need to be treated as
  recursive.
- Fix ip-ratelimit-cookie setting, it was not applied.
- Fix to remove unused include from the readzone test program.
- Fix unused variable warning in do_cache_remove.
- Fix compile warning in worker pthread id printout.
- Add unit test skip files and bison and flex output to gitignore.
- Fix to use modstack_init in zonemd unit test.
- Fix to remove unneeded linebreak in fptr_wlist.c.
- Fix compile warnings in fptr_wlist.c.
- Fix for repeated use of a DNAME record: first overallocate and then
  move the exact size of the init value to avoid false positive heap
  overflow reads from address sanitizers.
- Fix to print details about the failure to lookup a DNSKEY record
  when validation fails due to the missing DNSKEY. Also for key prime
  and DS lookups.
- Fix for neater printout for error for missing DS response.
- Fix neater printout.
- Fix #1099: Unbound core dump on SIGSEGV.
- Fix for #1099: Fix to check for deleted RRset when the contents
  is updated and fetched after it is stored, and also check for a
  changed RRset.
- Don't check for message TTL changes if the RRsets remain the same.
- Fix that validation reason failure that uses string print uses
  separate buffer that is passed, from the scratch validation buffer.
- Fixup algo_needs_reason string buffer length.
- Fix shadowed error string variable in validator dnskey handling.
- Update list of known EDE codes.
- For #773: In contrib/unbound.service.in set unbound to start after
  network-online.target. Also for contrib/unbound_portable.service.in.
- Fix #1103: unbound 1.20.0 segmentation fault with nghttp2.
- For #1103: fix to also drop mesh state reference when a h2 reply is
  dropped.
- Add RPZ tag tests in acl_interface.tdir.
- For #1102: clearer text for using interface-* options for the
  loopback interface.
- For #1103: fix to also drop mesh state reference when the discard
  limit is reached, when there is an error making a new recursion
  state and when the connection is dropped with is_drop.
- For #1103: Fix to drop mesh state reference for the http2 stream
  associated with the reply, not the currently active stream. And
  it does not remove it twice on a mesh_send_reply call. The reply
  h2_stream is NULL when not in use, for more initialisation.
- Fix dnstap wakeup, a running wakeup timer is left to expire and not
  increased, a timer is started when the dtio thread is sleeping,
  the timer set disabled when the dtio thread goes to sleep, and
  after sleep the thread checks to see if there are messages to log
  immediately.
- Merge #1110: Make fallthrough explicit for libworker.c.
- For #1110: Test for fallthrough attribute in configure and add
  fallthrough attribute annotations.
- Fix compile when the compiler does not support the noreturn
  attribute.
- Fix to have empty definition when not supported for weak attribute.
- Fix uninitialized variable warning in create_tcp_accept_sock.
- Fix link of dnstap without openssl.
- Fix link of unbound-dnstap-socket without openssl.
- Fix #1106: ratelimit-below-domain logs the wrong FROM address.
- Cleanup ede.tdir test.
- For #935 and #1104, clarify RPZ order and semantics.
- Fix to document parameters of auth_zone_verify_zonemd_with_key.
- Fix for #1114: Fix that cache fill for forward-host names is
  performed, so that with nonzero target-fetch-policy it fetches
  forwarder addresses and uses them from cache. Also updated that
  delegation point cache fill routines use CDflag for AAAA message
  lookups, so that its negative lookup stops a recursion since the
  cache uses the bit for disambiguation for dns64 but the recursion
  uses CDflag for the AAAA target lookups, so the check correctly
  stops a useless recursion by its cache lookup.
- Fix dnstap test program, cleans up to have clean memory on exit,
  for tap_data_free, does not delete NULL items. Also it does not try
  to free the tail, specifically in the free of the list since that
  picked up the next item in the list for its loop causing invalid
  free. Added internal unit test to unbound-dnstap-socket for that.
- Fix that the worker mem report with alloc stats does not attempt
  to print memory use of forwards and hints if they have been
  deleted already.
- Fix that alloc stats has strdup checks, it stops debuggers from
  complaining about mismatch at free time.
- Fix testbound for alloc stats strdup in util/alloc.c.
- Fix that alloc stats for forwards and hints are printed, and when
  alloc stats is enabled, the unit test for unbound control waits for
  reloads to complete.
- Fix that for windows the module startup is called and sets up
  the module-config.
- Fix spelling for the cache-min-negative-ttl entry in the
  example.conf.

Log message:
revbump after icu and protobuf updates

Log message:
unbound: protobuf-c is only required when the dnstap option is on

Log message:
*: recursive bump for protobuf 26.1

Log message:
Update net/unbound to version 1.19.3.

Pkgsrc changes:
 * Add dependency on devel/protobuf-c/buildlink3.mk
 * Add pkg-config as tool dependency
 * Adjust checksums

Upstream changes:
Features:
- Merge PR #973: Use the origin (DNAME) TTL for synthesized CNAMEs as
  per RFC 6672.

Bug Fixes:
- Fix unit test parse of origin syntax.
- Use 127.0.0.1 explicitly in tests to avoid delays and errors on
  newer systems.
- Fix #964: config.h.in~ backup file in release tar balls.
- Merge #968: Replace the obsolescent fgrep with grep -F in tests.
- Merge #971: fix 'WARNING: Message has 41 extra bytes at end'.
- Fix #969: [FR] distinguish Do53, DoT and DoH in the logs.
- Fix dnstap that assertion failed on logging other than UDP and TCP
  traffic. It lists it as TCP traffic.
- Fix to sync the tests script file common.sh.
- iana portlist update.
- Updated IPv4 and IPv6 address for b.root-servers.net in root hints.
- Update test script file common.sh.
- Fix tests to use new common.sh functions, wait_logfile and
  kill_from_pidfile.
- Fix #974: doc: default number of outgoing ports without libevent.
- Merge #975: Fixed some syntax errors in rpl files.
- Fix root_zonemd unit test, it checks that the root ZONEMD verifies,
  now that the root has a valid ZONEMD.
- Update example.conf with cookie options.
- Merge #980: DoH: reject non-h2 early. To fix #979: Improve errors
  for non-HTTP/2 DoH clients.
- Merge #985: Add DoH and DoT to dnstap message.
- Fix #983: Sha1 runtime insecure change was incomplete.
- Remove unneeded newlines and improve indentation in remote control
  code.
- Merge #987: skip edns frag retry if advertised udp payload size is
  not smaller.
- Fix unit test for #987 change in udp1xxx retry packet send.
- Merge #988: Fix NLnetLabs#981: dump_cache truncates large records.
- Fix to link with -lcrypt32 for OpenSSL 3.2.0 on Windows.
- Fix to link with libssp for libcrypto and getaddrinfo check for
  only header. Also update crosscompile to remove ssp for 32bit.
- Merge #993: Update b.root-servers.net also in example config file.
- Update workflow for ports to use newer openssl on windows compile.
- Fix warning for windres on resource files due to redefinition.
- Fix for #997: Print details for SSL certificate failure.
- Update error printout for duplicate trust anchors to include the
  trust anchor name (relates to #920).
- Update message TTL when using cached RRSETs. It could result in
  non-expired messages with expired RRSETs (non-usable messages by
  Unbound).
- Merge #999: Search for protobuf-c with pkg-config.
- Fix #1006: Can't find protobuf-c package since #999.
- Fix documentation for access-control in the unbound.conf man page.
- Merge #1010: Mention REFUSED has the TC bit set with unmatched
  allow_cookie acl in the manpage. It also fixes the code to match the
  documentation about clients with a valid cookie that bypass the
  ratelimit regardless of the allow_cookie acl.
- Document the suspend argument for process_ds_response().
- Move github workflows to use checkoutv4.
- Fix edns subnet replies for scope zero answers to not get stored
  in the global cache, and in cachedb, when the upstream replies
  without an EDNS record.
- Fix for #1022: Fix ede prohibited in access control refused answers.
- Fix unbound-control-setup.cmd to use 3072 bits so that certificates
  are long enough for newer OpenSSL versions.
- Fix TTL of synthesized CNAME when a DNAME is used from cache.
- Fix unbound-control-setup.cmd to have CA v3 basicConstraints,
  like unbound-control-setup.sh has.

Log message:
net/unbound: update to version 1.19.2.

Upstream changes:

Bug Fixes:
- Fix CVE-2024-1931, Denial of service when trimming EDE text on
  positive replies.

Log message:
Update net/unbound to version 1.19.1.

Pkgsrc changes:
 * none, other than checksums.

Upstream changes:
This security release fixes two DNSSEC validation vulnerabilities:
CVE-2023-50387 (referred here as the KeyTrap vulnerability) and
CVE-2023-50868 (referred here as the NSEC3 vulnerability).

The KeyTrap vulnerability works by using a combination of Keys
(also colliding Keys), Signatures and number of RRSETs on a malicious
zone.  Answers from that zone can force a DNSSEC validator down a
very CPU intensive and time costly validation path.

The NSEC3 vulnerability uses specially crafted responses on a
malicious zone with multiple NSEC3 RRSETs to force a DNSSEC validator
down a very CPU intensive and time costly NSEC3 hash calculation path.

Both can force Unbound to spend an enormous time (comparative to
regular traffic) validating a single specially crafted DNSSEC
response while everything else is on hold for that thread. A
trivially orchestrated attack could render all threads busy with
such responses leading to denial of service.

From version 1.19.1 on, Unbound introduces suspension on DNSSEC
response validations that seem to require more attempts than Unbound
is willing to make per response validation run. Suspension means
that Unbound will continue with other work before resuming a
suspended validation offering CPU time between validation resumptions
to other tasks. There is a backoff timer when suspending which is
further influenced by the number of suspends already used and the
amount of work currently in Unbound.

The introduced builtin limits in Unbound are:

- Max 4 DNSSEC key collissions are allowed when building chain of trust.
  More than that without a secure key treats the delegation as bogus.
- 8 validation attempts per RRSET (combination of keys + signatures).
  If more are needed and Unbound has yet to find a valid signature
  the RRSET is treated as bogus.
- More than 8 validation attempts per answer will suspend validation.
- 8 NSEC3 hash calculations are allowed before suspension. More than
  that will suspend validation.
- The limit of total suspensions is 16 after which the query will error
  out. Any completed RRSET validations populate the cache for use in
  future queries.

While under attack Unbound could show higher CPU load because of the
needed validations but the suspend strategy would guarantee the CPU is
not locked on any particular validation task.

We would like to thank Elias Heftrig, Haya Schulmann, Niklas Vogel,
and Michael Waidner from the German National Research Center for
Applied Cybersecurity ATHENE for discovering and responsibly
disclosing the KeyTrap vulnerability.

We would like to thank Petr Spacek from ISC for discovering and
responsibly disclosing the NSEC3 vulnerability.

Bug Fixes
- Fix CVE-2023-50387, DNSSEC verification complexity can be exploited to
  exhaust CPU resources and stall DNS resolvers.
- Fix CVE-2023-50868, NSEC3 closest encloser proof can exhaust CPU.

Log message:
revbump for devel/abseil

Log message:
*: bump for protobuf 25

Log message:
*: recursive bump for icu 74.1