contrib/bind-9.3/bin/named/include/named/lwresd.h

   1 /*
   2  * Copyright (C) 2004, 2006  Internet Systems Consortium, Inc. ("ISC")
   3  * Copyright (C) 2000, 2001  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: lwresd.h,v 1.12.208.3 2006/03/02 00:37:20 marka Exp $ */
  19
  20 #ifndef NAMED_LWRESD_H
  21 #define NAMED_LWRESD_H 1
  22
  23 #include <isc/types.h>
  24 #include <isc/sockaddr.h>
  25
  26 #include <isccfg/cfg.h>
  27
  28 #include <dns/types.h>
  29
  30 struct ns_lwresd {
  31         unsigned int magic;
  32
  33         isc_mutex_t lock;
  34         dns_view_t *view;
  35         ns_lwsearchlist_t *search;
  36         unsigned int ndots;
  37         isc_mem_t *mctx;
  38         isc_boolean_t shutting_down;
  39         unsigned int refs;
  40 };
  41
  42 struct ns_lwreslistener {
  43         unsigned int magic;
  44
  45         isc_mutex_t lock;
  46         isc_mem_t *mctx;
  47         isc_sockaddr_t address;
  48         ns_lwresd_t *manager;
  49         isc_socket_t *sock;
  50         unsigned int refs;
  51         ISC_LIST(ns_lwdclientmgr_t) cmgrs;
  52         ISC_LINK(ns_lwreslistener_t) link;
  53 };
  54
  55 /*
  56  * Configure lwresd.
  57  */
  58 isc_result_t
  59 ns_lwresd_configure(isc_mem_t *mctx, const cfg_obj_t *config);
  60
  61 isc_result_t
  62 ns_lwresd_parseeresolvconf(isc_mem_t *mctx, cfg_parser_t *pctx,
  63                            cfg_obj_t **configp);
  64
  65 /*
  66  * Trigger shutdown.
  67  */
  68 void
  69 ns_lwresd_shutdown(void);
  70
  71 /*
  72  * Manager functions
  73  */
  74 isc_result_t
  75 ns_lwdmanager_create(isc_mem_t *mctx, const cfg_obj_t *lwres,
  76                       ns_lwresd_t **lwresdp);
  77
  78 void
  79 ns_lwdmanager_attach(ns_lwresd_t *source, ns_lwresd_t **targetp);
  80
  81 void
  82 ns_lwdmanager_detach(ns_lwresd_t **lwresdp);
  83
  84 /*
  85  * Listener functions
  86  */
  87 void
  88 ns_lwreslistener_attach(ns_lwreslistener_t *source,
  89                         ns_lwreslistener_t **targetp);
  90
  91 void
  92 ns_lwreslistener_detach(ns_lwreslistener_t **listenerp);
  93
  94 void
  95 ns_lwreslistener_unlinkcm(ns_lwreslistener_t *listener, ns_lwdclientmgr_t *cm);
  96
  97 void
  98 ns_lwreslistener_linkcm(ns_lwreslistener_t *listener, ns_lwdclientmgr_t *cm);
  99
 100
 101
 102
 103 /*
 104  * INTERNAL FUNCTIONS.
 105  */
 106 void *
 107 ns__lwresd_memalloc(void *arg, size_t size);
 108
 109 void
 110 ns__lwresd_memfree(void *arg, void *mem, size_t size);
 111
 112 #endif /* NAMED_LWRESD_H */