net/tipc/name_distr.h

0001 /*
0002  * net/tipc/name_distr.h: Include file for TIPC name distribution code
0003  *
0004  * Copyright (c) 2000-2006, Ericsson AB
0005  * Copyright (c) 2005, Wind River Systems
0006  * All rights reserved.
0007  *
0008  * Redistribution and use in source and binary forms, with or without
0009  * modification, are permitted provided that the following conditions are met:
0010  *
0011  * 1. Redistributions of source code must retain the above copyright
0012  *    notice, this list of conditions and the following disclaimer.
0013  * 2. Redistributions in binary form must reproduce the above copyright
0014  *    notice, this list of conditions and the following disclaimer in the
0015  *    documentation and/or other materials provided with the distribution.
0016  * 3. Neither the names of the copyright holders nor the names of its
0017  *    contributors may be used to endorse or promote products derived from
0018  *    this software without specific prior written permission.
0019  *
0020  * Alternatively, this software may be distributed under the terms of the
0021  * GNU General Public License ("GPL") version 2 as published by the Free
0022  * Software Foundation.
0023  *
0024  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0025  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0026  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0027  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0028  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0029  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0030  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0031  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0032  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0033  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0034  * POSSIBILITY OF SUCH DAMAGE.
0035  */
0036
0037 #ifndef _TIPC_NAME_DISTR_H
0038 #define _TIPC_NAME_DISTR_H
0039
0040 #include "name_table.h"
0041
0042 #define ITEM_SIZE sizeof(struct distr_item)
0043
0044 /**
0045  * struct distr_item - publication info distributed to other nodes
0046  * @type: name sequence type
0047  * @lower: name sequence lower bound
0048  * @upper: name sequence upper bound
0049  * @port: publishing port reference
0050  * @key: publication key
0051  *
0052  * ===> All fields are stored in network byte order. <===
0053  *
0054  * First 3 fields identify (name or) name sequence being published.
0055  * Reference field uniquely identifies port that published name sequence.
0056  * Key field uniquely identifies publication, in the event a port has
0057  * multiple publications of the same name sequence.
0058  *
0059  * Note: There is no field that identifies the publishing node because it is
0060  * the same for all items contained within a publication message.
0061  */
0062 struct distr_item {
0063     __be32 type;
0064     __be32 lower;
0065     __be32 upper;
0066     __be32 port;
0067     __be32 key;
0068 };
0069
0070 void tipc_named_bcast(struct net *net, struct sk_buff *skb);
0071 struct sk_buff *tipc_named_publish(struct net *net, struct publication *publ);
0072 struct sk_buff *tipc_named_withdraw(struct net *net, struct publication *publ);
0073 void tipc_named_node_up(struct net *net, u32 dnode, u16 capabilities);
0074 void tipc_named_rcv(struct net *net, struct sk_buff_head *namedq,
0075             u16 *rcv_nxt, bool *open);
0076 void tipc_named_reinit(struct net *net);
0077 void tipc_publ_notify(struct net *net, struct list_head *nsub_list,
0078               u32 addr, u16 capabilities);
0079
0080 #endif