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kernel/linux-imx6_3.14.28/net/tipc/name_table.h 4.1 KB
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  /*
   * net/tipc/name_table.h: Include file for TIPC name table code
   *
   * Copyright (c) 2000-2006, Ericsson AB
   * Copyright (c) 2004-2005, 2010-2011, 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_TABLE_H
  #define _TIPC_NAME_TABLE_H
  
  #include "node_subscr.h"
  
  struct tipc_subscription;
  struct tipc_port_list;
  
  /*
   * TIPC name types reserved for internal TIPC use (both current and planned)
   */
  #define TIPC_ZM_SRV 3		/* zone master service name type */
  
  /**
   * struct publication - info about a published (name or) name sequence
   * @type: name sequence type
   * @lower: name sequence lower bound
   * @upper: name sequence upper bound
   * @scope: scope of publication
   * @node: network address of publishing port's node
   * @ref: publishing port
   * @key: publication key
   * @subscr: subscription to "node down" event (for off-node publications only)
   * @local_list: adjacent entries in list of publications made by this node
   * @pport_list: adjacent entries in list of publications made by this port
   * @node_list: adjacent matching name seq publications with >= node scope
   * @cluster_list: adjacent matching name seq publications with >= cluster scope
   * @zone_list: adjacent matching name seq publications with >= zone scope
   *
   * Note that the node list, cluster list, and zone list are circular lists.
   */
  struct publication {
  	u32 type;
  	u32 lower;
  	u32 upper;
  	u32 scope;
  	u32 node;
  	u32 ref;
  	u32 key;
  	struct tipc_node_subscr subscr;
  	struct list_head local_list;
  	struct list_head pport_list;
  	struct list_head node_list;
  	struct list_head cluster_list;
  	struct list_head zone_list;
  };
  
  
  extern rwlock_t tipc_nametbl_lock;
  
  struct sk_buff *tipc_nametbl_get(const void *req_tlv_area, int req_tlv_space);
  u32 tipc_nametbl_translate(u32 type, u32 instance, u32 *node);
  int tipc_nametbl_mc_translate(u32 type, u32 lower, u32 upper, u32 limit,
  			      struct tipc_port_list *dports);
  struct publication *tipc_nametbl_publish(u32 type, u32 lower, u32 upper,
  					 u32 scope, u32 port_ref, u32 key);
  int tipc_nametbl_withdraw(u32 type, u32 lower, u32 ref, u32 key);
  struct publication *tipc_nametbl_insert_publ(u32 type, u32 lower, u32 upper,
  					     u32 scope, u32 node, u32 ref,
  					     u32 key);
  struct publication *tipc_nametbl_remove_publ(u32 type, u32 lower, u32 node,
  					     u32 ref, u32 key);
  void tipc_nametbl_subscribe(struct tipc_subscription *s);
  void tipc_nametbl_unsubscribe(struct tipc_subscription *s);
  int tipc_nametbl_init(void);
  void tipc_nametbl_stop(void);
  
  #endif