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kernel/linux-rt-4.4.41/net/tipc/name_distr.h 3.26 KB
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  /*
   * net/tipc/name_distr.h: Include file for TIPC name distribution code
   *
   * Copyright (c) 2000-2006, Ericsson AB
   * Copyright (c) 2005, Wind River Systems
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. Neither the names of the copyright holders nor the names of its
   *    contributors may be used to endorse or promote products derived from
   *    this software without specific prior written permission.
   *
   * Alternatively, this software may be distributed under the terms of the
   * GNU General Public License ("GPL") version 2 as published by the Free
   * Software Foundation.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   */
  
  #ifndef _TIPC_NAME_DISTR_H
  #define _TIPC_NAME_DISTR_H
  
  #include "name_table.h"
  
  #define ITEM_SIZE sizeof(struct distr_item)
  
  /**
   * struct distr_item - publication info distributed to other nodes
   * @type: name sequence type
   * @lower: name sequence lower bound
   * @upper: name sequence upper bound
   * @ref: publishing port reference
   * @key: publication key
   *
   * ===> All fields are stored in network byte order. <===
   *
   * First 3 fields identify (name or) name sequence being published.
   * Reference field uniquely identifies port that published name sequence.
   * Key field uniquely identifies publication, in the event a port has
   * multiple publications of the same name sequence.
   *
   * Note: There is no field that identifies the publishing node because it is
   * the same for all items contained within a publication message.
   */
  struct distr_item {
  	__be32 type;
  	__be32 lower;
  	__be32 upper;
  	__be32 ref;
  	__be32 key;
  };
  
  struct sk_buff *tipc_named_publish(struct net *net, struct publication *publ);
  struct sk_buff *tipc_named_withdraw(struct net *net, struct publication *publ);
  void named_cluster_distribute(struct net *net, struct sk_buff *buf);
  void tipc_named_node_up(struct net *net, u32 dnode);
  void tipc_named_rcv(struct net *net, struct sk_buff_head *msg_queue);
  void tipc_named_reinit(struct net *net);
  void tipc_named_process_backlog(struct net *net);
  void tipc_publ_notify(struct net *net, struct list_head *nsub_list, u32 addr);
  
  #endif