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b97bf3fd PL |
1 | /* |
2 | * net/tipc/name_table.h: Include file for TIPC name table code | |
c4307285 | 3 | * |
1593123a | 4 | * Copyright (c) 2000-2006, 2014, Ericsson AB |
f6f0a4d2 | 5 | * Copyright (c) 2004-2005, 2010-2011, Wind River Systems |
b97bf3fd PL |
6 | * All rights reserved. |
7 | * | |
9ea1fd3c | 8 | * Redistribution and use in source and binary forms, with or without |
b97bf3fd PL |
9 | * modification, are permitted provided that the following conditions are met: |
10 | * | |
9ea1fd3c PL |
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. | |
b97bf3fd | 19 | * |
9ea1fd3c PL |
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 | |
b97bf3fd PL |
34 | * POSSIBILITY OF SUCH DAMAGE. |
35 | */ | |
36 | ||
37 | #ifndef _TIPC_NAME_TABLE_H | |
38 | #define _TIPC_NAME_TABLE_H | |
39 | ||
fead3909 | 40 | struct tipc_subscription; |
4584310b | 41 | struct tipc_port_list; |
b97bf3fd PL |
42 | |
43 | /* | |
44 | * TIPC name types reserved for internal TIPC use (both current and planned) | |
45 | */ | |
993bfe5d YX |
46 | #define TIPC_ZM_SRV 3 /* zone master service name type */ |
47 | #define TIPC_PUBL_SCOPE_NUM (TIPC_NODE_SCOPE + 1) | |
48 | #define TIPC_NAMETBL_SIZE 1024 /* must be a power of 2 */ | |
b97bf3fd | 49 | |
b97bf3fd PL |
50 | /** |
51 | * struct publication - info about a published (name or) name sequence | |
52 | * @type: name sequence type | |
53 | * @lower: name sequence lower bound | |
54 | * @upper: name sequence upper bound | |
55 | * @scope: scope of publication | |
56 | * @node: network address of publishing port's node | |
57 | * @ref: publishing port | |
58 | * @key: publication key | |
a8f48af5 | 59 | * @nodesub_list: subscription to "node down" event (off-node publication only) |
b97bf3fd PL |
60 | * @local_list: adjacent entries in list of publications made by this node |
61 | * @pport_list: adjacent entries in list of publications made by this port | |
f6f0a4d2 AS |
62 | * @node_list: adjacent matching name seq publications with >= node scope |
63 | * @cluster_list: adjacent matching name seq publications with >= cluster scope | |
64 | * @zone_list: adjacent matching name seq publications with >= zone scope | |
97ede29e | 65 | * @rcu: RCU callback head used for deferred freeing |
c4307285 | 66 | * |
b97bf3fd PL |
67 | * Note that the node list, cluster list, and zone list are circular lists. |
68 | */ | |
b97bf3fd PL |
69 | struct publication { |
70 | u32 type; | |
71 | u32 lower; | |
72 | u32 upper; | |
73 | u32 scope; | |
74 | u32 node; | |
75 | u32 ref; | |
76 | u32 key; | |
a8f48af5 | 77 | struct list_head nodesub_list; |
b97bf3fd PL |
78 | struct list_head local_list; |
79 | struct list_head pport_list; | |
f6f0a4d2 AS |
80 | struct list_head node_list; |
81 | struct list_head cluster_list; | |
82 | struct list_head zone_list; | |
97ede29e | 83 | struct rcu_head rcu; |
b97bf3fd PL |
84 | }; |
85 | ||
993bfe5d YX |
86 | /** |
87 | * struct name_table - table containing all existing port name publications | |
88 | * @seq_hlist: name sequence hash lists | |
89 | * @publ_list: pulication lists | |
90 | * @local_publ_count: number of publications issued by this node | |
91 | */ | |
92 | struct name_table { | |
93 | struct hlist_head seq_hlist[TIPC_NAMETBL_SIZE]; | |
94 | struct list_head publ_list[TIPC_PUBL_SCOPE_NUM]; | |
95 | u32 local_publ_count; | |
96 | }; | |
b97bf3fd | 97 | |
97ede29e | 98 | extern spinlock_t tipc_nametbl_lock; |
993bfe5d | 99 | extern struct name_table *tipc_nametbl; |
b97bf3fd | 100 | |
1593123a RA |
101 | int tipc_nl_name_table_dump(struct sk_buff *skb, struct netlink_callback *cb); |
102 | ||
4323add6 PL |
103 | struct sk_buff *tipc_nametbl_get(const void *req_tlv_area, int req_tlv_space); |
104 | u32 tipc_nametbl_translate(u32 type, u32 instance, u32 *node); | |
c4307285 | 105 | int tipc_nametbl_mc_translate(u32 type, u32 lower, u32 upper, u32 limit, |
ae8509c4 | 106 | struct tipc_port_list *dports); |
f2f9800d YX |
107 | struct publication *tipc_nametbl_publish(struct net *net, u32 type, u32 lower, |
108 | u32 upper, u32 scope, u32 port_ref, | |
109 | u32 key); | |
110 | int tipc_nametbl_withdraw(struct net *net, u32 type, u32 lower, u32 ref, | |
111 | u32 key); | |
4323add6 | 112 | struct publication *tipc_nametbl_insert_publ(u32 type, u32 lower, u32 upper, |
ae8509c4 PG |
113 | u32 scope, u32 node, u32 ref, |
114 | u32 key); | |
115 | struct publication *tipc_nametbl_remove_publ(u32 type, u32 lower, u32 node, | |
116 | u32 ref, u32 key); | |
fead3909 PG |
117 | void tipc_nametbl_subscribe(struct tipc_subscription *s); |
118 | void tipc_nametbl_unsubscribe(struct tipc_subscription *s); | |
4323add6 PL |
119 | int tipc_nametbl_init(void); |
120 | void tipc_nametbl_stop(void); | |
b97bf3fd PL |
121 | |
122 | #endif |