source: mainline/uspace/srv/net/dnsrsrv/dns_type.h@ 959d2ec

/*
 * Copyright (c) 2012 Jiri Svoboda
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/** @addtogroup dnsres
 * @{
 */
/**
 * @file
 */

#ifndef DNS_TYPE_H
#define DNS_TYPE_H

#include <adt/list.h>
#include <inet/inet.h>
#include <stdbool.h>
#include <stdint.h>
#include "dns_std.h"

/** Encoded DNS PDU */
typedef struct {
        /** Encoded PDU data */
        uint8_t *data;
        /** Encoded PDU size */
        size_t size;
} dns_pdu_t;

/** DNS message */
typedef struct {
        /* Encoded PDU */
        dns_pdu_t pdu;

        /** Identifier */
        uint16_t id;
        /** Query or Response */
        dns_query_response_t qr;
        /** Opcode */
        dns_opcode_t opcode;
        /** Authoritative Answer */
        bool aa;
        /** TrunCation */
        bool tc;
        /** Recursion Desired */
        bool rd;
        /** Recursion Available */
        bool ra;
        /** Response Code */
        dns_rcode_t rcode;

        list_t question; /* of dns_question_t */
        list_t answer; /* of dns_rr_t */
        list_t authority; /* of dns_rr_t */
        list_t additional; /* of dns_rr_t */
} dns_message_t;

/** Unencoded DNS message question section */
typedef struct {
        link_t msg;
        /** Domain name in text format (dot notation) */
        char *qname;
        /** Query type */
        dns_qtype_t qtype;
        /** Query class */
        dns_qclass_t qclass;
} dns_question_t;

/** Unencoded DNS resource record */
typedef struct {
        link_t msg;
        /** Domain name */
        char *name;
        /** RR type */
        dns_type_t rtype;
        /** Class of data */
        dns_class_t rclass;
        /** Time to live */
        uint32_t ttl;

        /** Resource data */
        void *rdata;
        /** Number of bytes in @c *rdata */
        size_t rdata_size;
        /** Offset in the raw message */
        size_t roff;
} dns_rr_t;

/** Host information */
typedef struct {
        /** Host name */
        char *cname;
        /** Host address */
        inet_addr_t addr;
} dns_host_info_t;

typedef struct {
} dnsr_client_t;

#endif

/** @}
 */