ADC Advanced Policy Expressions

DNS_HEADER_T


This object provides operations for parsing the DNS header.

This topic lists the expressions that are provided by this class.

  • ANCOUNT

    Returns the answer count in the DNS header.

Returns: num_at

  • ARCOUNT

    Returns the additional record count in the DNS header.

Returns: num_at

  • FLAGS

    Returns the value of DNS header flags

Returns: dns_flag_t

  • NSCOUNT

    Returns the nameserver count in the DNS header.

Returns: num_at

  • OPCODE

    Return the opcode in the DNS header.

Returns: dns_opcode_t

  • QDCOUNT

    Returns the question count in the DNS header.

Returns: num_at

  • RCODE

    Return the response code of the DNS question

Returns: dns_rcode_t

DNS_HEADER_T