contrib/bind-9.5.2/bin/named/include/named/query.h

   1 /*
   2  * Copyright (C) 2004, 2005, 2007  Internet Systems Consortium, Inc. ("ISC")
   3  * Copyright (C) 1999-2002  Internet Software Consortium.
   4  *
   5  * Permission to use, copy, modify, and/or 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 1.40 2007/06/19 23:46:59 tbox Exp $ */
  19
  20 #ifndef NAMED_QUERY_H
  21 #define NAMED_QUERY_H 1
  22
  23 /*! \file */
  24
  25 #include <isc/types.h>
  26 #include <isc/buffer.h>
  27 #include <isc/netaddr.h>
  28
  29 #include <dns/types.h>
  30
  31 #include <named/types.h>
  32
  33 /*% nameserver database version structure */
  34 typedef struct ns_dbversion {
  35         dns_db_t                        *db;
  36         dns_dbversion_t                 *version;
  37         isc_boolean_t                   queryok;
  38         ISC_LINK(struct ns_dbversion)   link;
  39 } ns_dbversion_t;
  40
  41 /*% nameserver query structure */
  42 struct ns_query {
  43         unsigned int                    attributes;
  44         unsigned int                    restarts;
  45         isc_boolean_t                   timerset;
  46         dns_name_t *                    qname;
  47         dns_name_t *                    origqname;
  48         unsigned int                    dboptions;
  49         unsigned int                    fetchoptions;
  50         dns_db_t *                      gluedb;
  51         dns_db_t *                      authdb;
  52         dns_zone_t *                    authzone;
  53         isc_boolean_t                   authdbset;
  54         isc_boolean_t                   isreferral;
  55         isc_mutex_t                     fetchlock;
  56         dns_fetch_t *                   fetch;
  57         isc_bufferlist_t                namebufs;
  58         ISC_LIST(ns_dbversion_t)        activeversions;
  59         ISC_LIST(ns_dbversion_t)        freeversions;
  60 };
  61
  62 #define NS_QUERYATTR_RECURSIONOK        0x0001
  63 #define NS_QUERYATTR_CACHEOK            0x0002
  64 #define NS_QUERYATTR_PARTIALANSWER      0x0004
  65 #define NS_QUERYATTR_NAMEBUFUSED        0x0008
  66 #define NS_QUERYATTR_RECURSING          0x0010
  67 #define NS_QUERYATTR_CACHEGLUEOK        0x0020
  68 #define NS_QUERYATTR_QUERYOKVALID       0x0040
  69 #define NS_QUERYATTR_QUERYOK            0x0080
  70 #define NS_QUERYATTR_WANTRECURSION      0x0100
  71 #define NS_QUERYATTR_SECURE             0x0200
  72 #define NS_QUERYATTR_NOAUTHORITY        0x0400
  73 #define NS_QUERYATTR_NOADDITIONAL       0x0800
  74
  75 isc_result_t
  76 ns_query_init(ns_client_t *client);
  77
  78 void
  79 ns_query_free(ns_client_t *client);
  80
  81 void
  82 ns_query_start(ns_client_t *client);
  83
  84 void
  85 ns_query_cancel(ns_client_t *client);
  86
  87 #endif /* NAMED_QUERY_H */