dper.rnc

# DNS Peering Protocol XML Relax NG Compact Schema

datatypes xsd = "http://www.w3.org/2001/XMLSchema-datatypes"

start = element dper {

	# A peer defines a name server source, typically a logical node
	element peer {
		attribute name { xsd:string }?,

		# Define master name severs
		element primary {
			# TSIG secret name (optional). Secret is transmitted OOB.
			tsig?,

			# IPv4/IPv6 address of primary name server
			ip_address
		}*,
		
		element zone {
			fqdn
		}*
	}+
}

tsig = attribute tsig { fqdn }

fqdn = xsd:token {
        pattern = "[A-Za-z0-9\.\-_]+"
}

ip_address = (ipv4 | ipv6)

ipv4 = xsd:token {
	pattern = "(25[0-5]|2[0-4][0-9]|[0-1]?[0-9]?[0-9])\.(25[0-5]|2[0-4][0-9]|[0-1]?[0-9]?[0-9])\.(25[0-5]|2[0-4][0-9]|[0-1]?[0-9]?[0-9])\.(25[0-5]|2[0-4][0-9]|[0-1]?[0-9]?[0-9])"
}

ipv6 = xsd:token {
        pattern = "(([0-9A-Fa-f]{1,4}(:[0-9A-Fa-f]{1,4}){7}|([0-9A-Fa-f]{1,4}:){1,6}(:[0-9A-Fa-f]{1,4}){1}|([0-9A-Fa-f]{1,4}:){1,5}(:[0-9A-Fa-f]{1,4}){1,2}|([0-9A-Fa-f]{1,4}:){1,4}(:[0-9A-Fa-f]{1,4}){1,3}|([0-9A-Fa-f]{1,4}:){1,3}(:[0-9A-Fa-f]{1,4}){1,4}|([0-9A-Fa-f]{1,4}:){1,2}(:[0-9A-Fa-f]{1,4}){1,5}|([0-9A-Fa-f]{1,4}:){1}(:[0-9A-Fa-f]{1,4}){1,6}))"
}