net/tipc/name_table.h

   1 /*
   2  * net/tipc/name_table.h: Include file for TIPC name table code
   3  *
   4  * Copyright (c) 2000-2006, Ericsson AB
   5  * Copyright (c) 2004-2005, 2010-2011, Wind River Systems
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions are met:
  10  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. Neither the names of the copyright holders nor the names of its
  17  *    contributors may be used to endorse or promote products derived from
  18  *    this software without specific prior written permission.
  19  *
  20  * Alternatively, this software may be distributed under the terms of the
  21  * GNU General Public License ("GPL") version 2 as published by the Free
  22  * Software Foundation.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  25  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  28  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  29  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  30  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  31  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  32  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  33  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  34  * POSSIBILITY OF SUCH DAMAGE.
  35  */
  36
  37 #ifndef _TIPC_NAME_TABLE_H
  38 #define _TIPC_NAME_TABLE_H
  39
  40 #include "node_subscr.h"
  41
  42 struct tipc_subscription;
  43 struct tipc_port_list;
  44
  45 /*
  46  * TIPC name types reserved for internal TIPC use (both current and planned)
  47  */
  48
  49 #define TIPC_ZM_SRV 3           /* zone master service name type */
  50
  51
  52 /**
  53  * struct publication - info about a published (name or) name sequence
  54  * @type: name sequence type
  55  * @lower: name sequence lower bound
  56  * @upper: name sequence upper bound
  57  * @scope: scope of publication
  58  * @node: network address of publishing port's node
  59  * @ref: publishing port
  60  * @key: publication key
  61  * @subscr: subscription to "node down" event (for off-node publications only)
  62  * @local_list: adjacent entries in list of publications made by this node
  63  * @pport_list: adjacent entries in list of publications made by this port
  64  * @node_list: adjacent matching name seq publications with >= node scope
  65  * @cluster_list: adjacent matching name seq publications with >= cluster scope
  66  * @zone_list: adjacent matching name seq publications with >= zone scope
  67  *
  68  * Note that the node list, cluster list, and zone list are circular lists.
  69  */
  70
  71 struct publication {
  72         u32 type;
  73         u32 lower;
  74         u32 upper;
  75         u32 scope;
  76         u32 node;
  77         u32 ref;
  78         u32 key;
  79         struct tipc_node_subscr subscr;
  80         struct list_head local_list;
  81         struct list_head pport_list;
  82         struct list_head node_list;
  83         struct list_head cluster_list;
  84         struct list_head zone_list;
  85 };
  86
  87
  88 extern rwlock_t tipc_nametbl_lock;
  89
  90 struct sk_buff *tipc_nametbl_get(const void *req_tlv_area, int req_tlv_space);
  91 u32 tipc_nametbl_translate(u32 type, u32 instance, u32 *node);
  92 int tipc_nametbl_mc_translate(u32 type, u32 lower, u32 upper, u32 limit,
  93                          struct tipc_port_list *dports);
  94 int tipc_nametbl_publish_rsv(u32 ref, unsigned int scope,
  95                         struct tipc_name_seq const *seq);
  96 struct publication *tipc_nametbl_publish(u32 type, u32 lower, u32 upper,
  97                                     u32 scope, u32 port_ref, u32 key);
  98 int tipc_nametbl_withdraw(u32 type, u32 lower, u32 ref, u32 key);
  99 struct publication *tipc_nametbl_insert_publ(u32 type, u32 lower, u32 upper,
 100                                         u32 scope, u32 node, u32 ref, u32 key);
 101 struct publication *tipc_nametbl_remove_publ(u32 type, u32 lower,
 102                                         u32 node, u32 ref, u32 key);
 103 void tipc_nametbl_subscribe(struct tipc_subscription *s);
 104 void tipc_nametbl_unsubscribe(struct tipc_subscription *s);
 105 int tipc_nametbl_init(void);
 106 void tipc_nametbl_stop(void);
 107
 108 #endif