Update

vendor/golang.org/x/net/dns/dnsmessage/message.go

@@ -17,8 +17,21 @@ import (
 )
 
 // Message formats
+//
+// To add a new Resource Record type:
+// 1. Create Resource Record types
+//   1.1. Add a Type constant named "Type<name>"
+//   1.2. Add the corresponding entry to the typeNames map
+//   1.3. Add a [ResourceBody] implementation named "<name>Resource"
+// 2. Implement packing
+//   2.1. Implement Builder.<name>Resource()
+// 3. Implement unpacking
+//   3.1. Add the unpacking code to unpackResourceBody()
+//   3.2. Implement Parser.<name>Resource()
 
-// A Type is a type of DNS request and response.
+// A Type is the type of a DNS Resource Record, as defined in the [IANA registry].
+//
+// [IANA registry]: https://www.iana.org/assignments/dns-parameters/dns-parameters.xhtml#dns-parameters-4
 type Type uint16
 
 const (
@@ -33,6 +46,8 @@ const (
 	TypeAAAA  Type = 28
 	TypeSRV   Type = 33
 	TypeOPT   Type = 41
+	TypeSVCB  Type = 64
+	TypeHTTPS Type = 65
 
 	// Question.Type
 	TypeWKS   Type = 11
@@ -53,6 +68,8 @@ var typeNames = map[Type]string{
 	TypeAAAA:  "TypeAAAA",
 	TypeSRV:   "TypeSRV",
 	TypeOPT:   "TypeOPT",
+	TypeSVCB:  "TypeSVCB",
+	TypeHTTPS: "TypeHTTPS",
 	TypeWKS:   "TypeWKS",
 	TypeHINFO: "TypeHINFO",
 	TypeMINFO: "TypeMINFO",
@@ -273,6 +290,8 @@ var (
 	errTooManyAdditionals = errors.New("too many Additionals to pack (>65535)")
 	errNonCanonicalName   = errors.New("name is not in canonical format (it must end with a .)")
 	errStringTooLong      = errors.New("character string exceeds maximum length (255)")
+	errParamOutOfOrder    = errors.New("parameter out of order")
+	errTooLongSVCBValue   = errors.New("value too long (>65535 bytes)")
 )
 
 // Internal constants.
@@ -2220,6 +2239,16 @@ func unpackResourceBody(msg []byte, off int, hdr ResourceHeader) (ResourceBody,
 		rb, err = unpackSRVResource(msg, off)
 		r = &rb
 		name = "SRV"
+	case TypeSVCB:
+		var rb SVCBResource
+		rb, err = unpackSVCBResource(msg, off, hdr.Length)
+		r = &rb
+		name = "SVCB"
+	case TypeHTTPS:
+		var rb HTTPSResource
+		rb.SVCBResource, err = unpackSVCBResource(msg, off, hdr.Length)
+		r = &rb
+		name = "HTTPS"
 	case TypeOPT:
 		var rb OPTResource
 		rb, err = unpackOPTResource(msg, off, hdr.Length)