Changelogs for 4.3.x

4.3.7

Released: 22nd of March 2021

Improvements

• Do not chase CNAME during qname minimization step 4.

  References: #9790, pull request 9804

Bug Fixes

• Make sure we take the right minimum for the packet cache TTL data in the SERVFAIL case.

  References: #10185, pull request 10193

4.3.6

Released: 25th of November 2020

Bug Fixes

• Do not add request to a wait chain that’s already processed or being processed.

  References: #9707, pull request 9718

• Do not send overly long NOD lookups.

  References: #9697, pull request 9706

• Avoid a CNAME loop detection issue with DNS64.

  References: #9696, pull request 9702

• If a.b.c CNAME x.a.b.c is encountered, switch off QName Minimization.

  References: #9680, pull request 9684

• Previous placeholder fix was incomplete.

  References: #9070, pull request 9609

4.3.5

Released: 13th of October 2020

Improvements

• Log when going Bogus because of a missing SOA in authority.

  References: pull request 9527

Bug Fixes

• Backport of CVE-2020-25829: Cache pollution.

  References: pull request 9604

• Watch the descriptor again after an out-of-order read timeout.

  References: #9495, pull request 9525

• Raise an exception on invalid content in unknown records.

  References: #9497, pull request 9507

• Boost 1.73 moved boost::bind placeholders to the placeholders namespace.x

  References: #9070, pull request 9501

• Fix the parsing of dont-throttle-netmasks in the presence of dont-throttle-names.

  References: #9454, pull request 9457

4.3.4

Released: 8th of September 2020

Improvements

• Ensure runtime dirs for virtual services differ.

  References: #9073, pull request 9397

Bug Fixes

• Allow some more depth headroom for the no-qname-minimization fallback case.

  References: #9375, pull request 9416

• Resize hostname to final size in getCarbonHostname().

  References: pull request 9367

4.3.3

Released: 17th of July 2020

Bug Fixes

• Validate cached DNSKEYs against the DSs, not the RRSIGs only.

  References: #9309, pull request 9330

• Ignore cache-only for DNSKEYs and DS retrieval.

  References: #9297, pull request 9329

• A ServFail while retrieving DS/DNSKEY records is just that.

  References: #9292, pull request 9328

• Refuse DS records received from child zones.

  References: #9188, pull request 9327

• Better exception handling in houseKeeping/handlePolicyHit.

  References: #9268, pull request 9305

• Take initial refresh time from loaded zone.

  References: #9299, #9301, pull request 9304

4.3.2

Released: 1st of July 2020

Improvements

• Defer the NOD lookup until after the response has been sent.

  References: #9142, pull request 9243

• CNAME loop detection.

  References: #9194, #9202, #9216, pull request 9248

Bug Fixes

• Backport of CVE-2020-14196: Enforce webserver ACL.

  References: pull request 9285

• Copy the negative cache entry before validating it.

  References: #9251, pull request 9262

• Fix compilation of the ports event multiplexer.

  References: #9031, pull request 9242

• Fix the handling of DS queries for the root.

  References: #9151, pull request 9245

• Fix RPZ removals when an update has several deltas.

  References: #9172, pull request 9246

• Fix compilation on systems that do not define HOST_NAME_MAX.

  References: #9127, pull request 9128

• Fix build with gcc-10.

  References: #8640, pull request 9122

misc

• Correct depth increments.

  References: #9184, #9192, pull request 9247

• Limit the TTL of RRSIG records as well

  References: #9205, pull request 9249

4.3.1

Released: 19th of May 2020

Improvements

• Add ubuntu focal target.

  References: pull request 9082

Bug Fixes

• Backport of security fixes for CVE-2020-10995, CVE-2020-12244 and CVE-2020-10030, plus avoid a crash when loading an invalid RPZ.

  References: pull request 9115

• RPZ dumpFile/seedFile: store/get SOA refresh on dump/load.

  References: #8778, pull request 9048

misc

• Update boost.m4.

  References: #8875, pull request 8963

4.3.0

Released: 3rd of March 2020

Improvements

• Only log qname parsing errors when ‘log-common-errors’ is set.

  References: pull request 8870

• Update copyright year.

  References: pull request 8863

4.3.0-rc2

Released: 18th of February 2020

Improvements

• Do continue rpz processing if the current policy is passthru.

  References: pull request 8827

Bug Fixes

• Refuse NSEC records with a bitmap length > 32.

  References: pull request 8831

4.3.0-rc1

Released: 3rd of February 2020

Improvements

• Update boost.m4.

  References: pull request 8751

• Explicitly enable dnstap for debian-stretch and buster.

  References: pull request 8738

• EPEL 8 now has libfstrm-devel.

  References: pull request 8728

• Give an explicit message if something is wrong with socket-dir.

  References: pull request 8726

Bug Fixes

• Make ComboAddress::setPort() update the current object.

  References: pull request 8730

• Fix the evaluation order for filtering policies (RPZ).

  References: pull request 8727

4.3.0-beta2

Released: 16th of January 2020

Improvements

• Add the source and destination ports to the protobuf msg.

  References: pull request 8704

• Increase default max-qperq.

  References: #8646, pull request 8675

Bug Fixes

• Debian postinst / do not fail on user creation if it already exists.

  References: pull request 8673

• Parsing dont-throttle-names and dont-throttle-netmasks as comma separated lists. (costypetrisor)

  References: #8676, pull request 8685

• An Opt-Out NSEC3 RR only proves that there is no secure delegation.

  References: #8664, pull request 8692

• Fix wrong zoneCuts caused by cache only lookup.

  References: #8642, pull request 8670

4.3.0-beta1

Released: 12th of December 2019

Improvements

• Better time based data structures

  References: pull request 8571

• QName Minimization is no longer experimental and is now enabled by default.

  References: pull request 8477, pull request 8561

• Make threads run until asked to stop.

  References: #8518, pull request 8521

• Fix -Wshadow warnings (Aki Tuomi)

  References: pull request 8440

• Do RFC 8020 only if cache entry is dnssec validated

  References: pull request 8511

• Add a parameter to limit the number of ‘$GENERATE’ steps

  References: pull request 8492

Bug Fixes

• Remove duplicate RRs inside a RRSet when computing the signature

  References: pull request 8512

• Check return value of dup() and avoid fd leak if if fdopen() fails

  References: pull request 8560

• Avoid startup race by setting the state of a thread before starting it.

  References: #8558, pull request 8559

• Purge map of failed auths periodically by keeping a last changed timestamp.

  References: #7771, pull request 8525

• Avoid mthread race when using the set of rootNSZones.

  References: pull request 8510

4.3.0-alpha3

Released: 29th of October 2019

New Features

• Implement RFC 8020 “NXDOMAIN: There Really Is Nothing Underneath”

  References: pull request 8367

Improvements

• Update CentOS 6 init script (None)

  References: pull request 8463

• Basic validation of $GENERATE parameters

  References: pull request 8451

• Add signal handling for SIGTERM and SIGINT in pdns_recursor, if we are PID1 (Frank Louwers)

  References: pull request 8344

• Docs: Add small description for pipe backend about distributor-threads (Donatas Abraitis)

  References: pull request 8287

• Improve commandline error reporting for non-opts

  References: pull request 8290

misc

• Prime NS records of root-servers.net parent (.net)

  References: pull request 8470

• Dns64: stop hiding PTR indirection

  References: pull request 8433

• Allow multiple simultaneous incoming TCP queries over a connection

  References: #8358, pull request 8391

• Add CentOS 8 as builder target

  References: pull request 8400

• Fix chmod paths in rules files

  References: pull request 8371

• Build Newly Observed Domain (NOD) support by default.

  References: pull request 8366

• Rec: chmod/own recursor.conf for the systemd case

  References: #8352, pull request 8360

• Fix #8338: Issue with “zz” abbreviation for IPv6 RPZ triggers

  References: #8338, pull request 8340

• Retry getrandom() on EINTR

  References: pull request 8317

• Recursor webhandler for prometheus metrics (Greg Cockroft)

  References: pull request 7758

4.3.0-alpha2

Released: Never released

4.3.0-alpha1

Released: 5th of September 2019

New Features

• Rec: lua pdns_features table

  References: pull request 8210

• Builder: add raspbian-buster target

  References: pull request 8075

• Rec: export a protobuf incoming response message for timeouts

  References: pull request 8000

• Recursor: add devicename field to protobuf messages

  References: pull request 8001

• Recursor: don’t start as root in systemd

  References: pull request 7879

• Rec experimental qname minimization

  References: pull request 7757

• Rec: set the query-zone field in the dnstap messages.

  References: pull request 7877

• Allow unix domains sockets for dnstap destinations

  References: pull request 7868

• DNSTAP logging for queries to, and responses from, auths

  References: pull request 7538

Improvements

• Bail out when no context library is available

  References: pull request 8122

• Some unneeded float<->double conversions.

  References: pull request 8091

• Rec: document that the special-memory-usage stat is excluded by default

  References: pull request 8140

• Update boost.m4

  References: #6942, #8084, pull request 7951

• Rec: small speed improvements in the syncres

  References: pull request 8010

• Don’t create temporary strings to escape dnsname labels

  References: pull request 8013

• Add static assertions for the size of the src address control buffer

  References: pull request 8007

• Clear cmsg_space(sizeof(data)) in cmsghdr to appease valgrind.

  References: #7981, pull request 7996

• Explicitly align the buffer used for cmsgs

  References: #7981, pull request 7990

• Silence unused lambda warning (retry) (fwSmit)

  References: #7949, pull request 7967

• Rec: clean ups in the syncres::docnamecachelookup code

  References: pull request 7945

• All: dnsname, speeds up tostring() conversion

  References: pull request 7699

• rec: optimize for large number of filtering policies, empty sections

  References: pull request 7904

• Rec: reuse the outgoing query protobuf for the incoming response

  References: pull request 7901

• Rec: compare the cachekey type and place first then the name

  References: pull request 7905

• Update boost.m4 to the latest version

  References: pull request 7862

• Check if -latomic is needed instead of hardcoding (Rosen Penev)

  References: pull request 7861

• Rec: small speedups in the recursion ‘slow’ path

  References: pull request 7843

• Add latomic to arc platform (Rosen Penev)

  References: pull request 7857

• Eliminate the loop in syncres::getaddrs()

  References: pull request 7548

misc

• Rec: fix two coverity issues

  References: pull request 8256

• Add missing inc in rpz findclientpolicy loop.

  References: pull request 8236

• Fix inverse handler registration logic for snmp.

  References: pull request 8227

• Restore the lua binding for dnsname::wirelength()

  References: pull request 8142

• Rec docs: fix versionadded for maintenance()

  References: pull request 8152

• Fix the rfc1982lessthan template.

  References: pull request 8089

• Ensure debian sysv users get set{g,u}id

  References: pull request 8034

• Make sure we always compile with boost_cb_enable_debug set to 0

  References: pull request 8067

• Limit compression pointers to 14 bits

  References: pull request 8028

• Another time sensitive test fixed with a fixednow construct.

  References: #8008, pull request 8047

• Rec: don’t go bogus if the auth zone delegation test takes too long

  References: pull request 8008

• Rec: fix the export of only outgoing queries or incoming responses

  References: pull request 7997

• Fix a few markup issues in our documentation

  References: pull request 7946

• Adapt calidns for openbsd and other systems without rcvmmsg(2)

  References: pull request 7871

• Rec: better detection of bogus zone cuts for dnssec validation

  References: pull request 7928

• suffixmatchtree: fix root removal, partial match of non-leaf nodes

  References: pull request 7886

• Rec: don’t mix time() and gettimeofday() in our unit tests (again)

  References: #6160, #7235, #7883, pull request 7884

• Stubquery: fix handling of optional type arg.

  References: pull request 7870

• Fix warnings reported by coverity

  References: pull request 7864

• Recursor: log udp tc bits during trace

  References: pull request 7841