net/tipc/name_distr.h

   1 /*
   2  * net/tipc/name_distr.h: Include file for TIPC name distribution code
   3  *
   4  * Copyright (c) 2000-2006, Ericsson AB
   5  * Copyright (c) 2005, 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_DISTR_H
  38 #define _TIPC_NAME_DISTR_H
  39
  40 #include "name_table.h"
  41
  42 #define ITEM_SIZE sizeof(struct distr_item)
  43
  44 /**
  45  * struct distr_item - publication info distributed to other nodes
  46  * @type: name sequence type
  47  * @lower: name sequence lower bound
  48  * @upper: name sequence upper bound
  49  * @port: publishing port reference
  50  * @key: publication key
  51  *
  52  * ===> All fields are stored in network byte order. <===
  53  *
  54  * First 3 fields identify (name or) name sequence being published.
  55  * Reference field uniquely identifies port that published name sequence.
  56  * Key field uniquely identifies publication, in the event a port has
  57  * multiple publications of the same name sequence.
  58  *
  59  * Note: There is no field that identifies the publishing node because it is
  60  * the same for all items contained within a publication message.
  61  */
  62 struct distr_item {
  63         __be32 type;
  64         __be32 lower;
  65         __be32 upper;
  66         __be32 port;
  67         __be32 key;
  68 };
  69
  70 void tipc_named_bcast(struct net *net, struct sk_buff *skb);
  71 struct sk_buff *tipc_named_publish(struct net *net, struct publication *publ);
  72 struct sk_buff *tipc_named_withdraw(struct net *net, struct publication *publ);
  73 void tipc_named_node_up(struct net *net, u32 dnode, u16 capabilities);
  74 void tipc_named_rcv(struct net *net, struct sk_buff_head *namedq,
  75                     u16 *rcv_nxt, bool *open);
  76 void tipc_named_reinit(struct net *net);
  77 void tipc_publ_notify(struct net *net, struct list_head *nsub_list,
  78                       u32 addr, u16 capabilities);
  79
  80 #endif