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Brian Shea 034f791cf8
answer queries with no matching handler with RcodeRefused (#1151)
* answer queries with no matching handler with RcodeRefused

* update documentation

* mark HandleFailed deprecated

* add handleRefused and use it to answer requests matching no handler

* silence noise maker

Co-authored-by: Brian <brian@pop-os.localdomain>
2020-08-20 08:41:45 +02:00
.github/workflows Create codeql-analysis.yml 2020-07-08 09:23:39 +02:00
dnsutil util.TrimDomainName() fails when origin doesn't end in dot (#559) 2017-11-08 18:19:10 +00:00
.codecov.yml Add codecov yaml to not fail the build (#600) 2017-12-06 10:36:23 +00:00
.gitignore gitignore update 2013-10-15 13:22:35 +00:00
.travis.yml code generation compatible with go modules (#1050) 2019-12-30 12:25:57 +01:00
AUTHORS add AUTHOR file 2014-02-10 17:15:49 +00:00
CODEOWNERS Add CODEOWNERS (#1042) 2019-12-09 11:50:19 +00:00
CONTRIBUTORS Correctly set the Source IP to the received Destination IP (#524) 2017-09-29 10:38:26 +01:00
COPYRIGHT Remove all copyright notices 2014-09-11 20:57:37 +01:00
LICENSE Put added license bit at the bottom (#1056) 2019-12-18 06:58:51 +00:00
Makefile.fuzz Add fuzzing framework (#580) 2017-11-23 09:34:31 +00:00
Makefile.release Release: plain push is also needed 2018-01-10 08:17:22 +00:00
README.md Add domainr.com & zonedb.org to the Users list (#1134) 2020-07-08 21:09:04 +02:00
acceptfunc.go Doc fixes (#1060) 2019-12-19 09:28:37 +00:00
acceptfunc_test.go RFC 1996 allows SOA in answer in notify (#900) 2019-01-12 10:11:11 +00:00
client.go Adds function ExchangeWithConn (#1110) 2020-05-04 10:22:21 +02:00
client_test.go Adds function ExchangeWithConn (#1110) 2020-05-04 10:22:21 +02:00
clientconfig.go Use for range loops instead of manual for loops (#937) 2019-03-18 07:06:44 +00:00
clientconfig_test.go fix: panicing on options parsing. (#642) 2018-03-01 06:22:09 -08:00
dane.go Improve performance by addressing some low hanging fruit. (#444) 2017-02-02 07:33:49 +00:00
defaults.go CanonicalName function to return domain name in canonical form (#1073) 2020-03-18 11:21:59 +01:00
dns.go Prohibit newlines before record data in the ZoneParser (#979) 2019-06-10 07:38:54 +01:00
dns_bench_test.go ZoneParser: error on parsing an IPv6 address in an A record (#923) 2019-03-09 09:02:18 +00:00
dns_test.go Properly calculate compressed message lengths (#833) 2018-11-30 10:03:41 +10:30
dnssec.go CanonicalName function to return domain name in canonical form (#1073) 2020-03-18 11:21:59 +01:00
dnssec_keygen.go Remove DSA* algorithms (#972) 2019-05-20 20:49:02 +01:00
dnssec_keyscan.go Remove DSA* algorithms (#972) 2019-05-20 20:49:02 +01:00
dnssec_privkey.go Use new(big.Int) instead of big.NewInt(0) (#938) 2019-03-13 07:36:34 +00:00
dnssec_test.go Eliminate lexer goroutines (#792) 2018-10-15 17:42:31 +10:30
doc.go Doc updates (#1075) 2020-02-14 22:47:21 +01:00
duplicate.go Doc updates (#1075) 2020-02-14 22:47:21 +01:00
duplicate_generate.go Generate isDuplicate for derivatives (#1114) 2020-05-11 09:16:21 +02:00
duplicate_test.go Use an interface method for IsDuplicate (#883) 2019-01-06 14:42:38 +10:30
dyn_test.go Remove all copyright notices 2014-09-11 20:57:37 +01:00
edns.go Support the zero length EDNS0 EXPIRE option (#1065) 2019-12-30 14:42:48 +01:00
edns_test.go Revert "Export EDNS0 interface (#1041)" (#1046) 2019-12-06 21:23:18 +00:00
example_test.go fix a stupid mistake "undefined: zone" 2015-09-30 09:42:47 -07:00
format.go Add checks on data length for A and AAAA records (#919) 2019-03-12 16:31:33 +00:00
format_test.go Add checks on data length for A and AAAA records (#919) 2019-03-12 16:31:33 +00:00
fuzz.go [fuzzer] Avoid fuzzing parser with line that contains "$INCLUDE" (#1026) 2019-10-10 07:12:53 +01:00
fuzz_test.go build: reduce testing output (#1031) 2019-10-20 07:12:43 +01:00
generate.go fix failing tests on 32 bit platforms (#1130) 2020-07-02 09:54:07 +02:00
generate_test.go refactor: remove ParseZone and parseZone (#1099) 2020-04-28 09:24:18 +02:00
go.mod code generation compatible with go modules (#1050) 2019-12-30 12:25:57 +01:00
go.sum code generation compatible with go modules (#1050) 2019-12-30 12:25:57 +01:00
issue_test.go Tests updates (#556) 2017-11-08 10:01:19 +00:00
labels.go Doc updates (#1075) 2020-02-14 22:47:21 +01:00
labels_test.go CanonicalName function to return domain name in canonical form (#1073) 2020-03-18 11:21:59 +01:00
leak_test.go Revert doh (#800) 2018-11-01 20:16:39 +00:00
length_test.go Reduce compression memory use with map[string]uint16 (#852) 2018-12-02 08:50:51 +10:30
listen_go111.go Use correct build constraints for listen_*.go files (#750) 2018-09-26 09:12:54 +01:00
listen_go_not111.go Use correct build constraints for listen_*.go files (#750) 2018-09-26 09:12:54 +01:00
msg.go Be consistent about domain name label character escaping (#1122) 2020-07-06 10:07:56 +02:00
msg_generate.go APL record support (#1058) 2020-01-03 13:41:45 +01:00
msg_helpers.go make sure removing trailing zero octets in APL AFDPART (#1150) 2020-08-17 19:51:22 +01:00
msg_helpers_test.go make sure removing trailing zero octets in APL AFDPART (#1150) 2020-08-17 19:51:22 +01:00
msg_test.go Add test for forward compression pointer (#1123) 2020-05-27 08:05:25 +00:00
msg_truncate.go l is never used (#1071) 2020-02-03 21:10:40 +01:00
msg_truncate_test.go Set the TC bit more aggressively in Truncate (#989) 2019-06-24 16:59:43 +01:00
nsecx.go Doc updates (#1075) 2020-02-14 22:47:21 +01:00
nsecx_test.go Add a HashName benchmark 2018-11-29 10:28:29 +10:30
parse_test.go fix and enhance stringToCm to parse LOC RR optional fields (#1148) 2020-08-17 07:08:03 +00:00
privaterr.go Doc updates (#1075) 2020-02-14 22:47:21 +01:00
privaterr_test.go refactor: remove ParseZone and parseZone (#1099) 2020-04-28 09:24:18 +02:00
remote_test.go Add remote test 2015-08-22 10:50:07 +01:00
reverse.go Move all reversed map creation into reverse.go (#889) 2019-01-04 08:10:15 +00:00
rr_test.go Eliminate lexer goroutines (#792) 2018-10-15 17:42:31 +10:30
sanitize.go Avoid calling RR.Header more than once per RR (#891) 2019-01-04 08:12:32 +00:00
sanitize_test.go Tests updates (#556) 2017-11-08 10:01:19 +00:00
scan.go fix and enhance stringToCm to parse LOC RR optional fields (#1148) 2020-08-17 07:08:03 +00:00
scan_rr.go validate LOC's lat/long field values not to be out of range (#1149) 2020-08-17 07:07:46 +00:00
scan_test.go refactor: remove ParseZone and parseZone (#1099) 2020-04-28 09:24:18 +02:00
serve_mux.go answer queries with no matching handler with RcodeRefused (#1151) 2020-08-20 08:41:45 +02:00
serve_mux_test.go Rework and optimise ServeMux (#754) 2018-09-27 07:48:02 +01:00
server.go answer queries with no matching handler with RcodeRefused (#1151) 2020-08-20 08:41:45 +02:00
server_test.go Ensure TSIG state is verified in TestServerRoundtripTsig (#1085) 2020-03-11 14:18:07 +00:00
sig0.go Use new(big.Int) instead of big.NewInt(0) (#938) 2019-03-13 07:36:34 +00:00
sig0_test.go Lowercase all error msg from the tests 2015-11-26 14:12:38 +00:00
singleinflight.go Prevent timeout in TestConcurrentExchanges (#862) 2018-12-04 07:29:08 +00:00
smimea.go Simplify and unify various returns (#893) 2019-01-04 10:19:42 +00:00
tlsa.go Simplify and unify various returns (#893) 2019-01-04 10:19:42 +00:00
tsig.go Add support for HMAC-SHA224 and HMAC-SHA384 TSIG algorithms (#1139) 2020-07-22 13:59:04 +09:30
tsig_test.go Add support for HMAC-SHA224 and HMAC-SHA384 TSIG algorithms (#1139) 2020-07-22 13:59:04 +09:30
types.go Be consistent about domain name label character escaping (#1122) 2020-07-06 10:07:56 +02:00
types_generate.go Generate copy() for derived types (#1118) 2020-05-18 12:54:09 +00:00
types_test.go Be consistent about domain name label character escaping (#1122) 2020-07-06 10:07:56 +02:00
udp.go Rollback PR #738 because it breaks compatibility with Windows (#765) 2018-09-29 10:25:59 +01:00
udp_test.go Rollback PR #738 because it breaks compatibility with Windows (#765) 2018-09-29 10:25:59 +01:00
udp_windows.go Simplify and unify various returns (#893) 2019-01-04 10:19:42 +00:00
update.go Avoid calling RR.Header more than once per RR (#891) 2019-01-04 08:12:32 +00:00
update_test.go ClassANY: don't convert CLASS255 to ANY (#618) 2018-01-07 17:57:04 +00:00
version.go Release 1.1.31 2020-08-01 06:57:59 +02:00
version_test.go Doc updates (#1075) 2020-02-14 22:47:21 +01:00
xfr.go doc: fix xfr example. (#1062) 2019-12-19 13:11:22 +00:00
xfr_test.go simplify loop (#1023) 2019-10-05 14:24:46 +01:00
zduplicate.go Generate isDuplicate for derivatives (#1114) 2020-05-11 09:16:21 +02:00
zmsg.go APL record support (#1058) 2020-01-03 13:41:45 +01:00
ztypes.go Generate copy() for derived types (#1118) 2020-05-18 12:54:09 +00:00

README.md

Build Status Code Coverage Go Report Card

Alternative (more granular) approach to a DNS library

Less is more.

Complete and usable DNS library. All Resource Records are supported, including the DNSSEC types. It follows a lean and mean philosophy. If there is stuff you should know as a DNS programmer there isn't a convenience function for it. Server side and client side programming is supported, i.e. you can build servers and resolvers with it.

We try to keep the "master" branch as sane as possible and at the bleeding edge of standards, avoiding breaking changes wherever reasonable. We support the last two versions of Go.

Goals

  • KISS;
  • Fast;
  • Small API. If it's easy to code in Go, don't make a function for it.

Users

A not-so-up-to-date-list-that-may-be-actually-current:

Send pull request if you want to be listed here.

Features

  • UDP/TCP queries, IPv4 and IPv6
  • RFC 1035 zone file parsing ($INCLUDE, $ORIGIN, $TTL and $GENERATE (for all record types) are supported
  • Fast
  • Server side programming (mimicking the net/http package)
  • Client side programming
  • DNSSEC: signing, validating and key generation for DSA, RSA, ECDSA and Ed25519
  • EDNS0, NSID, Cookies
  • AXFR/IXFR
  • TSIG, SIG(0)
  • DNS over TLS (DoT): encrypted connection between client and server over TCP
  • DNS name compression

Have fun!

Miek Gieben - 2010-2012 - miek@miek.nl DNS Authors 2012-

Building

This library uses Go modules and uses semantic versioning. Building is done with the go tool, so the following should work:

go get github.com/miekg/dns
go build github.com/miekg/dns

Examples

A short "how to use the API" is at the beginning of doc.go (this also will show when you call godoc github.com/miekg/dns).

Example programs can be found in the github.com/miekg/exdns repository.

Supported RFCs

all of them

  • 103{4,5} - DNS standard
  • 1348 - NSAP record (removed the record)
  • 1982 - Serial Arithmetic
  • 1876 - LOC record
  • 1995 - IXFR
  • 1996 - DNS notify
  • 2136 - DNS Update (dynamic updates)
  • 2181 - RRset definition - there is no RRset type though, just []RR
  • 2537 - RSAMD5 DNS keys
  • 2065 - DNSSEC (updated in later RFCs)
  • 2671 - EDNS record
  • 2782 - SRV record
  • 2845 - TSIG record
  • 2915 - NAPTR record
  • 2929 - DNS IANA Considerations
  • 3110 - RSASHA1 DNS keys
  • 3123 - APL record
  • 3225 - DO bit (DNSSEC OK)
  • 340{1,2,3} - NAPTR record
  • 3445 - Limiting the scope of (DNS)KEY
  • 3597 - Unknown RRs
  • 403{3,4,5} - DNSSEC + validation functions
  • 4255 - SSHFP record
  • 4343 - Case insensitivity
  • 4408 - SPF record
  • 4509 - SHA256 Hash in DS
  • 4592 - Wildcards in the DNS
  • 4635 - HMAC SHA TSIG
  • 4701 - DHCID
  • 4892 - id.server
  • 5001 - NSID
  • 5155 - NSEC3 record
  • 5205 - HIP record
  • 5702 - SHA2 in the DNS
  • 5936 - AXFR
  • 5966 - TCP implementation recommendations
  • 6605 - ECDSA
  • 6725 - IANA Registry Update
  • 6742 - ILNP DNS
  • 6840 - Clarifications and Implementation Notes for DNS Security
  • 6844 - CAA record
  • 6891 - EDNS0 update
  • 6895 - DNS IANA considerations
  • 6944 - DNSSEC DNSKEY Algorithm Status
  • 6975 - Algorithm Understanding in DNSSEC
  • 7043 - EUI48/EUI64 records
  • 7314 - DNS (EDNS) EXPIRE Option
  • 7477 - CSYNC RR
  • 7828 - edns-tcp-keepalive EDNS0 Option
  • 7553 - URI record
  • 7858 - DNS over TLS: Initiation and Performance Considerations
  • 7871 - EDNS0 Client Subnet
  • 7873 - Domain Name System (DNS) Cookies
  • 8080 - EdDSA for DNSSEC
  • 8499 - DNS Terminology

Loosely Based Upon