Support Certification Authority Authorization in dns-mode.el

* lisp/textmodes/dns-mode.el (dns-mode-types): Add "CAA".
(Bug#28911)

Copyright-paperwork-exempt: yes

1 files changed, 2 insertions, 1 deletions

diff --git a/lisp/textmodes/dns-mode.el b/lisp/textmodes/dns-mode.el
index df03beaa9a3..6b668a62674 100644
--- a/lisp/textmodes/dns-mode.el
+++ b/lisp/textmodes/dns-mode.el
@@ -35,6 +35,7 @@
 ;; RFC 5155, "DNS Security (DNSSEC) Hashed Authenticated Denial of Existence"
 ;; RFC 6698, "The DNS-Based Authentication of Named Entities (DANE)
 ;;             Transport Layer Security (TLS) Protocol: TLSA"
+;; RFC 6844, "DNS Certification Authority Authorization (CAA) Resource Record"
 
 ;;; Release history:
 
@@ -62,7 +63,7 @@
                            "A6" "DNAME" "SINK" "OPT" "APL" "DS" "SSHFP"
                            "RRSIG" "NSEC" "DNSKEY" "UINFO" "UID" "GID"
                            "UNSPEC" "TKEY" "TSIG" "IXFR" "AXFR" "MAILB"
-                           "MAILA" "TLSA" "NSEC3")
+                           "MAILA" "TLSA" "NSEC3" "CAA")
   "List of strings with known DNS types.")
 
 (defface dns-mode-control-entity '((t :inherit font-lock-keyword-face))