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 struct publication *tipc_nametbl_publish(u32 type, u32 lower, u32 upper,
95 				    u32 scope, u32 port_ref, u32 key);
96 int tipc_nametbl_withdraw(u32 type, u32 lower, u32 ref, u32 key);
97 struct publication *tipc_nametbl_insert_publ(u32 type, u32 lower, u32 upper,
98 					u32 scope, u32 node, u32 ref, u32 key);
99 struct publication *tipc_nametbl_remove_publ(u32 type, u32 lower,
100 					u32 node, u32 ref, u32 key);
101 void tipc_nametbl_subscribe(struct tipc_subscription *s);
102 void tipc_nametbl_unsubscribe(struct tipc_subscription *s);
103 int tipc_nametbl_init(void);
104 void tipc_nametbl_stop(void);
105 
106 #endif
107