contrib/bind-9.2.4rc7/bin/named/include/named/query.h

   1 /*
   2  * Copyright (C) 2004  Internet Systems Consortium, Inc. ("ISC")
   3  * Copyright (C) 1999-2002  Internet Software Consortium.
   4  *
   5  * Permission to use, copy, modify, and distribute this software for any
   6  * purpose with or without fee is hereby granted, provided that the above
   7  * copyright notice and this permission notice appear in all copies.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
  10  * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
  11  * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
  12  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
  13  * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
  14  * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  15  * PERFORMANCE OF THIS SOFTWARE.
  16  */
  17
  18 /* $Id: query.h,v 1.28.2.4 2004/03/09 06:09:23 marka Exp $ */
  19
  20 #ifndef NAMED_QUERY_H
  21 #define NAMED_QUERY_H 1
  22
  23 #include <isc/types.h>
  24 #include <isc/buffer.h>
  25 #include <isc/netaddr.h>
  26
  27 #include <dns/types.h>
  28 #include <dns/a6.h>
  29
  30 #include <named/types.h>
  31
  32 typedef struct ns_dbversion {
  33         dns_db_t                        *db;
  34         dns_dbversion_t                 *version;
  35         isc_boolean_t                   queryok;
  36         ISC_LINK(struct ns_dbversion)   link;
  37 } ns_dbversion_t;
  38
  39 struct ns_query {
  40         unsigned int                    attributes;
  41         unsigned int                    restarts;
  42         isc_boolean_t                   timerset;
  43         dns_name_t *                    qname;
  44         dns_name_t *                    origqname;
  45         unsigned int                    dboptions;
  46         unsigned int                    fetchoptions;
  47         dns_db_t *                      gluedb;
  48         dns_db_t *                      authdb;
  49         dns_zone_t *                    authzone;
  50         isc_boolean_t                   authdbset;
  51         isc_boolean_t                   isreferral;
  52         dns_fetch_t *                   fetch;
  53         dns_a6context_t                 a6ctx;
  54         isc_bufferlist_t                namebufs;
  55         ISC_LIST(ns_dbversion_t)        activeversions;
  56         ISC_LIST(ns_dbversion_t)        freeversions;
  57         /*
  58          * Additional state used during IPv6 response synthesis only.
  59          */
  60         struct {
  61                 isc_netaddr_t na;
  62         } synth;
  63 };
  64
  65 #define NS_QUERYATTR_RECURSIONOK        0x0001
  66 #define NS_QUERYATTR_CACHEOK            0x0002
  67 #define NS_QUERYATTR_PARTIALANSWER      0x0004
  68 #define NS_QUERYATTR_NAMEBUFUSED        0x0008
  69 #define NS_QUERYATTR_RECURSING          0x0010
  70 #define NS_QUERYATTR_CACHEGLUEOK        0x0020
  71 #define NS_QUERYATTR_QUERYOKVALID       0x0040
  72 #define NS_QUERYATTR_QUERYOK            0x0080
  73 #define NS_QUERYATTR_WANTRECURSION      0x0100
  74 #define NS_QUERYATTR_WANTDNSSEC         0x0200
  75 #define NS_QUERYATTR_NOAUTHORITY        0x0400
  76 #define NS_QUERYATTR_NOADDITIONAL       0x0800
  77
  78 isc_result_t
  79 ns_query_init(ns_client_t *client);
  80
  81 void
  82 ns_query_free(ns_client_t *client);
  83
  84 void
  85 ns_query_start(ns_client_t *client);
  86
  87 #endif /* NAMED_QUERY_H */