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Per Lidenb97bf3f2006-01-02 19:04:38 +01001/*
2 * net/tipc/name_distr.c: TIPC name distribution code
YOSHIFUJI Hideakic4307282007-02-09 23:25:21 +09003 *
Erik Hugnea5325ae2014-08-28 09:08:47 +02004 * Copyright (c) 2000-2006, 2014, Ericsson AB
Allan Stephens431697e2011-02-23 13:51:15 -05005 * Copyright (c) 2005, 2010-2011, Wind River Systems
Per Lidenb97bf3f2006-01-02 19:04:38 +01006 * All rights reserved.
7 *
Per Liden9ea1fd32006-01-11 13:30:43 +01008 * Redistribution and use in source and binary forms, with or without
Per Lidenb97bf3f2006-01-02 19:04:38 +01009 * modification, are permitted provided that the following conditions are met:
10 *
Per Liden9ea1fd32006-01-11 13:30:43 +010011 * 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.
Per Lidenb97bf3f2006-01-02 19:04:38 +010019 *
Per Liden9ea1fd32006-01-11 13:30:43 +010020 * 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
Per Lidenb97bf3f2006-01-02 19:04:38 +010034 * POSSIBILITY OF SUCH DAMAGE.
35 */
36
37#include "core.h"
Per Lidenb97bf3f2006-01-02 19:04:38 +010038#include "link.h"
Per Lidenb97bf3f2006-01-02 19:04:38 +010039#include "name_distr.h"
40
Erik Hugnea5325ae2014-08-28 09:08:47 +020041int sysctl_tipc_named_timeout __read_mostly = 2000;
42
Erik Hugnea5325ae2014-08-28 09:08:47 +020043struct distr_queue_item {
44 struct distr_item i;
45 u32 dtype;
46 u32 node;
47 unsigned long expires;
48 struct list_head next;
49};
50
Per Lidenb97bf3f2006-01-02 19:04:38 +010051/**
52 * publ_to_item - add publication info to a publication message
53 */
Per Lidenb97bf3f2006-01-02 19:04:38 +010054static void publ_to_item(struct distr_item *i, struct publication *p)
55{
56 i->type = htonl(p->type);
57 i->lower = htonl(p->lower);
58 i->upper = htonl(p->upper);
Jon Maloye50e73e2018-03-15 16:48:55 +010059 i->port = htonl(p->port);
Per Lidenb97bf3f2006-01-02 19:04:38 +010060 i->key = htonl(p->key);
Per Lidenb97bf3f2006-01-02 19:04:38 +010061}
62
63/**
64 * named_prepare_buf - allocate & initialize a publication message
Parthasarathy Bhuvaragand2f394d2016-09-01 16:22:16 +020065 *
66 * The buffer returned is of size INT_H_SIZE + payload size
Per Lidenb97bf3f2006-01-02 19:04:38 +010067 */
Ying Xue34747532015-01-09 15:27:10 +080068static struct sk_buff *named_prepare_buf(struct net *net, u32 type, u32 size,
69 u32 dest)
Per Lidenb97bf3f2006-01-02 19:04:38 +010070{
Parthasarathy Bhuvaragan57d5f642017-01-13 15:46:25 +010071 struct sk_buff *buf = tipc_buf_acquire(INT_H_SIZE + size, GFP_ATOMIC);
Jon Maloy23fd3ea2018-03-22 20:42:49 +010072 u32 self = tipc_own_addr(net);
Per Lidenb97bf3f2006-01-02 19:04:38 +010073 struct tipc_msg *msg;
74
75 if (buf != NULL) {
76 msg = buf_msg(buf);
Jon Maloy23fd3ea2018-03-22 20:42:49 +010077 tipc_msg_init(self, msg, NAME_DISTRIBUTOR,
78 type, INT_H_SIZE, dest);
Allan Stephens741d9eb2011-05-31 15:03:18 -040079 msg_set_size(msg, INT_H_SIZE + size);
Per Lidenb97bf3f2006-01-02 19:04:38 +010080 }
81 return buf;
82}
83
84/**
Per Liden4323add2006-01-18 00:38:21 +010085 * tipc_named_publish - tell other nodes about a new publication by this node
Per Lidenb97bf3f2006-01-02 19:04:38 +010086 */
Ying Xue4ac1c8d2015-01-09 15:27:09 +080087struct sk_buff *tipc_named_publish(struct net *net, struct publication *publ)
Per Lidenb97bf3f2006-01-02 19:04:38 +010088{
Jon Maloy64a52b26d52018-03-15 16:48:52 +010089 struct name_table *nt = tipc_name_table(net);
Per Lidenb97bf3f2006-01-02 19:04:38 +010090 struct distr_item *item;
Jon Maloy64a52b26d52018-03-15 16:48:52 +010091 struct sk_buff *skb;
Per Lidenb97bf3f2006-01-02 19:04:38 +010092
Jon Maloy64a52b26d52018-03-15 16:48:52 +010093 if (publ->scope == TIPC_NODE_SCOPE) {
Jon Maloy935439c2018-03-15 16:48:54 +010094 list_add_tail_rcu(&publ->binding_node, &nt->node_scope);
Ying Xueeab8c0452014-04-28 18:00:10 +080095 return NULL;
Jon Maloy64a52b26d52018-03-15 16:48:52 +010096 }
Jon Maloy988f3f162018-10-19 19:55:40 +020097 write_lock_bh(&nt->cluster_scope_lock);
98 list_add_tail(&publ->binding_node, &nt->cluster_scope);
99 write_unlock_bh(&nt->cluster_scope_lock);
Jon Maloy64a52b26d52018-03-15 16:48:52 +0100100 skb = named_prepare_buf(net, PUBLICATION, ITEM_SIZE, 0);
101 if (!skb) {
Erik Hugne2cf8aa12012-06-29 00:16:37 -0400102 pr_warn("Publication distribution failure\n");
Ying Xueeab8c0452014-04-28 18:00:10 +0800103 return NULL;
Per Lidenb97bf3f2006-01-02 19:04:38 +0100104 }
105
Jon Maloy64a52b26d52018-03-15 16:48:52 +0100106 item = (struct distr_item *)msg_data(buf_msg(skb));
Per Lidenb97bf3f2006-01-02 19:04:38 +0100107 publ_to_item(item, publ);
Jon Maloy64a52b26d52018-03-15 16:48:52 +0100108 return skb;
Per Lidenb97bf3f2006-01-02 19:04:38 +0100109}
110
111/**
Per Liden4323add2006-01-18 00:38:21 +0100112 * tipc_named_withdraw - tell other nodes about a withdrawn publication by this node
Per Lidenb97bf3f2006-01-02 19:04:38 +0100113 */
Ying Xue34747532015-01-09 15:27:10 +0800114struct sk_buff *tipc_named_withdraw(struct net *net, struct publication *publ)
Per Lidenb97bf3f2006-01-02 19:04:38 +0100115{
Jon Maloy988f3f162018-10-19 19:55:40 +0200116 struct name_table *nt = tipc_name_table(net);
Per Lidenb97bf3f2006-01-02 19:04:38 +0100117 struct sk_buff *buf;
118 struct distr_item *item;
119
Jon Maloy988f3f162018-10-19 19:55:40 +0200120 write_lock_bh(&nt->cluster_scope_lock);
121 list_del(&publ->binding_node);
122 write_unlock_bh(&nt->cluster_scope_lock);
Allan Stephens1110b8d2012-04-17 17:57:52 -0400123 if (publ->scope == TIPC_NODE_SCOPE)
Ying Xueeab8c0452014-04-28 18:00:10 +0800124 return NULL;
Allan Stephens1110b8d2012-04-17 17:57:52 -0400125
Ying Xue34747532015-01-09 15:27:10 +0800126 buf = named_prepare_buf(net, WITHDRAWAL, ITEM_SIZE, 0);
Per Lidenb97bf3f2006-01-02 19:04:38 +0100127 if (!buf) {
Erik Hugne2cf8aa12012-06-29 00:16:37 -0400128 pr_warn("Withdrawal distribution failure\n");
Ying Xueeab8c0452014-04-28 18:00:10 +0800129 return NULL;
Per Lidenb97bf3f2006-01-02 19:04:38 +0100130 }
131
132 item = (struct distr_item *)msg_data(buf_msg(buf));
133 publ_to_item(item, publ);
Ying Xueeab8c0452014-04-28 18:00:10 +0800134 return buf;
Per Lidenb97bf3f2006-01-02 19:04:38 +0100135}
136
Jon Paul Maloydbdf6d22014-07-16 20:40:58 -0400137/**
Allan Stephense11aa052012-04-17 17:57:52 -0400138 * named_distribute - prepare name info for bulk distribution to another node
Ying Xuea6ca1092014-11-26 11:41:55 +0800139 * @list: list of messages (buffers) to be returned from this function
Jon Paul Maloydbdf6d22014-07-16 20:40:58 -0400140 * @dnode: node to be updated
141 * @pls: linked list of publication items to be packed into buffer chain
Allan Stephense11aa052012-04-17 17:57:52 -0400142 */
Ying Xuef2f98002015-01-09 15:27:05 +0800143static void named_distribute(struct net *net, struct sk_buff_head *list,
144 u32 dnode, struct list_head *pls)
Allan Stephense11aa052012-04-17 17:57:52 -0400145{
146 struct publication *publ;
Ying Xuea6ca1092014-11-26 11:41:55 +0800147 struct sk_buff *skb = NULL;
Allan Stephense11aa052012-04-17 17:57:52 -0400148 struct distr_item *item = NULL;
Hoang Lef73b1282019-10-29 07:51:21 +0700149 u32 msg_dsz = ((tipc_node_get_mtu(net, dnode, 0, false) - INT_H_SIZE) /
Parthasarathy Bhuvaragand2f394d2016-09-01 16:22:16 +0200150 ITEM_SIZE) * ITEM_SIZE;
151 u32 msg_rem = msg_dsz;
Allan Stephense11aa052012-04-17 17:57:52 -0400152
Jon Maloy988f3f162018-10-19 19:55:40 +0200153 list_for_each_entry(publ, pls, binding_node) {
Jon Paul Maloydbdf6d22014-07-16 20:40:58 -0400154 /* Prepare next buffer: */
Ying Xuea6ca1092014-11-26 11:41:55 +0800155 if (!skb) {
Ying Xue34747532015-01-09 15:27:10 +0800156 skb = named_prepare_buf(net, PUBLICATION, msg_rem,
157 dnode);
Ying Xuea6ca1092014-11-26 11:41:55 +0800158 if (!skb) {
Erik Hugne2cf8aa12012-06-29 00:16:37 -0400159 pr_warn("Bulk publication failure\n");
Allan Stephense11aa052012-04-17 17:57:52 -0400160 return;
161 }
Jon Paul Maloy06bd2b12016-10-27 18:51:55 -0400162 msg_set_bc_ack_invalid(buf_msg(skb), true);
Ying Xuea6ca1092014-11-26 11:41:55 +0800163 item = (struct distr_item *)msg_data(buf_msg(skb));
Allan Stephense11aa052012-04-17 17:57:52 -0400164 }
Jon Paul Maloydbdf6d22014-07-16 20:40:58 -0400165
166 /* Pack publication into message: */
Allan Stephense11aa052012-04-17 17:57:52 -0400167 publ_to_item(item, publ);
168 item++;
Jon Paul Maloydbdf6d22014-07-16 20:40:58 -0400169 msg_rem -= ITEM_SIZE;
170
171 /* Append full buffer to list: */
172 if (!msg_rem) {
Ying Xuea6ca1092014-11-26 11:41:55 +0800173 __skb_queue_tail(list, skb);
174 skb = NULL;
Ying Xue1b61e702014-12-02 15:00:23 +0800175 msg_rem = msg_dsz;
Allan Stephense11aa052012-04-17 17:57:52 -0400176 }
177 }
Ying Xue1b61e702014-12-02 15:00:23 +0800178 if (skb) {
179 msg_set_size(buf_msg(skb), INT_H_SIZE + (msg_dsz - msg_rem));
180 skb_trim(skb, INT_H_SIZE + (msg_dsz - msg_rem));
181 __skb_queue_tail(list, skb);
182 }
Allan Stephense11aa052012-04-17 17:57:52 -0400183}
184
Per Lidenb97bf3f2006-01-02 19:04:38 +0100185/**
Per Liden4323add2006-01-18 00:38:21 +0100186 * tipc_named_node_up - tell specified node about all publications by this node
Per Lidenb97bf3f2006-01-02 19:04:38 +0100187 */
Ying Xuef2f98002015-01-09 15:27:05 +0800188void tipc_named_node_up(struct net *net, u32 dnode)
Per Lidenb97bf3f2006-01-02 19:04:38 +0100189{
Jon Maloy64a52b26d52018-03-15 16:48:52 +0100190 struct name_table *nt = tipc_name_table(net);
Ying Xuea6ca1092014-11-26 11:41:55 +0800191 struct sk_buff_head head;
192
Jon Maloye654f9f2019-08-15 16:42:50 +0200193 __skb_queue_head_init(&head);
Allan Stephens9aa88c22011-05-31 13:38:02 -0400194
Jon Maloy988f3f162018-10-19 19:55:40 +0200195 read_lock_bh(&nt->cluster_scope_lock);
Jon Maloy64a52b26d52018-03-15 16:48:52 +0100196 named_distribute(net, &head, dnode, &nt->cluster_scope);
Jon Paul Maloyc49a0a842015-10-22 08:51:47 -0400197 tipc_node_xmit(net, &head, dnode, 0);
Jon Maloy988f3f162018-10-19 19:55:40 +0200198 read_unlock_bh(&nt->cluster_scope_lock);
Per Lidenb97bf3f2006-01-02 19:04:38 +0100199}
200
201/**
Ying Xuea8f48af2014-11-26 11:41:45 +0800202 * tipc_publ_purge - remove publication associated with a failed node
YOSHIFUJI Hideakic4307282007-02-09 23:25:21 +0900203 *
204 * Invoked for each publication issued by a newly failed node.
Per Lidenb97bf3f2006-01-02 19:04:38 +0100205 * Removes publication structure from name table & deletes it.
Per Lidenb97bf3f2006-01-02 19:04:38 +0100206 */
Ying Xuef2f98002015-01-09 15:27:05 +0800207static void tipc_publ_purge(struct net *net, struct publication *publ, u32 addr)
Per Lidenb97bf3f2006-01-02 19:04:38 +0100208{
Jon Maloy37922ea2018-03-29 23:20:43 +0200209 struct tipc_net *tn = tipc_net(net);
Per Lidenb97bf3f2006-01-02 19:04:38 +0100210 struct publication *p;
Allan Stephensf131072c2006-06-25 23:51:37 -0700211
Ying Xue4ac1c8d2015-01-09 15:27:09 +0800212 spin_lock_bh(&tn->nametbl_lock);
Jon Maloy37922ea2018-03-29 23:20:43 +0200213 p = tipc_nametbl_remove_publ(net, publ->type, publ->lower, publ->upper,
214 publ->node, publ->key);
Allan Stephens431697e2011-02-23 13:51:15 -0500215 if (p)
Jon Maloy935439c2018-03-15 16:48:54 +0100216 tipc_node_unsubscribe(net, &p->binding_node, addr);
Ying Xue4ac1c8d2015-01-09 15:27:09 +0800217 spin_unlock_bh(&tn->nametbl_lock);
Allan Stephensf131072c2006-06-25 23:51:37 -0700218
YOSHIFUJI Hideakic4307282007-02-09 23:25:21 +0900219 if (p != publ) {
Erik Hugne2cf8aa12012-06-29 00:16:37 -0400220 pr_err("Unable to remove publication from failed node\n"
Jon Maloye50e73e2018-03-15 16:48:55 +0100221 " (type=%u, lower=%u, node=0x%x, port=%u, key=%u)\n",
222 publ->type, publ->lower, publ->node, publ->port,
Erik Hugne2cf8aa12012-06-29 00:16:37 -0400223 publ->key);
Allan Stephensf131072c2006-06-25 23:51:37 -0700224 }
225
Xin Long42dec1d2019-09-03 17:53:12 +0800226 if (p)
227 kfree_rcu(p, rcu);
Per Lidenb97bf3f2006-01-02 19:04:38 +0100228}
229
Erik Hugneddb1d332016-04-07 10:40:44 -0400230/**
231 * tipc_dist_queue_purge - remove deferred updates from a node that went down
232 */
233static void tipc_dist_queue_purge(struct net *net, u32 addr)
234{
235 struct tipc_net *tn = net_generic(net, tipc_net_id);
236 struct distr_queue_item *e, *tmp;
237
238 spin_lock_bh(&tn->nametbl_lock);
239 list_for_each_entry_safe(e, tmp, &tn->dist_queue, next) {
240 if (e->node != addr)
241 continue;
242 list_del(&e->next);
243 kfree(e);
244 }
245 spin_unlock_bh(&tn->nametbl_lock);
246}
247
Ying Xuef2f98002015-01-09 15:27:05 +0800248void tipc_publ_notify(struct net *net, struct list_head *nsub_list, u32 addr)
Ying Xuea8f48af2014-11-26 11:41:45 +0800249{
250 struct publication *publ, *tmp;
251
Jon Maloy935439c2018-03-15 16:48:54 +0100252 list_for_each_entry_safe(publ, tmp, nsub_list, binding_node)
Ying Xuef2f98002015-01-09 15:27:05 +0800253 tipc_publ_purge(net, publ, addr);
Erik Hugneddb1d332016-04-07 10:40:44 -0400254 tipc_dist_queue_purge(net, addr);
Ying Xuea8f48af2014-11-26 11:41:45 +0800255}
256
Per Lidenb97bf3f2006-01-02 19:04:38 +0100257/**
Erik Hugnef4ad8a42014-08-28 09:08:46 +0200258 * tipc_update_nametbl - try to process a nametable update and notify
259 * subscribers
260 *
261 * tipc_nametbl_lock must be held.
262 * Returns the publication item if successful, otherwise NULL.
263 */
Ying Xuef2f98002015-01-09 15:27:05 +0800264static bool tipc_update_nametbl(struct net *net, struct distr_item *i,
265 u32 node, u32 dtype)
Erik Hugnef4ad8a42014-08-28 09:08:46 +0200266{
Jon Maloy37922ea2018-03-29 23:20:43 +0200267 struct publication *p = NULL;
268 u32 lower = ntohl(i->lower);
269 u32 upper = ntohl(i->upper);
270 u32 type = ntohl(i->type);
271 u32 port = ntohl(i->port);
272 u32 key = ntohl(i->key);
Erik Hugnef4ad8a42014-08-28 09:08:46 +0200273
274 if (dtype == PUBLICATION) {
Jon Maloy37922ea2018-03-29 23:20:43 +0200275 p = tipc_nametbl_insert_publ(net, type, lower, upper,
276 TIPC_CLUSTER_SCOPE, node,
277 port, key);
278 if (p) {
279 tipc_node_subscribe(net, &p->binding_node, node);
Erik Hugne0fc4dff2014-09-10 14:02:50 +0200280 return true;
Erik Hugnef4ad8a42014-08-28 09:08:46 +0200281 }
282 } else if (dtype == WITHDRAWAL) {
Jon Maloy37922ea2018-03-29 23:20:43 +0200283 p = tipc_nametbl_remove_publ(net, type, lower,
284 upper, node, key);
285 if (p) {
286 tipc_node_unsubscribe(net, &p->binding_node, node);
287 kfree_rcu(p, rcu);
Erik Hugne0fc4dff2014-09-10 14:02:50 +0200288 return true;
Erik Hugnef4ad8a42014-08-28 09:08:46 +0200289 }
Jon Maloy37922ea2018-03-29 23:20:43 +0200290 pr_warn_ratelimited("Failed to remove binding %u,%u from %x\n",
291 type, lower, node);
Erik Hugnef4ad8a42014-08-28 09:08:46 +0200292 } else {
293 pr_warn("Unrecognized name table message received\n");
294 }
Erik Hugne0fc4dff2014-09-10 14:02:50 +0200295 return false;
Erik Hugnef4ad8a42014-08-28 09:08:46 +0200296}
297
298/**
Jon Paul Maloyc637c102015-02-05 08:36:41 -0500299 * tipc_named_rcv - process name table update messages sent by another node
Per Lidenb97bf3f2006-01-02 19:04:38 +0100300 */
Jon Paul Maloyc637c102015-02-05 08:36:41 -0500301void tipc_named_rcv(struct net *net, struct sk_buff_head *inputq)
Per Lidenb97bf3f2006-01-02 19:04:38 +0100302{
Ying Xue4ac1c8d2015-01-09 15:27:09 +0800303 struct tipc_net *tn = net_generic(net, tipc_net_id);
Jon Paul Maloyc637c102015-02-05 08:36:41 -0500304 struct tipc_msg *msg;
305 struct distr_item *item;
306 uint count;
307 u32 node;
308 struct sk_buff *skb;
309 int mtype;
Per Lidenb97bf3f2006-01-02 19:04:38 +0100310
Ying Xue4ac1c8d2015-01-09 15:27:09 +0800311 spin_lock_bh(&tn->nametbl_lock);
Jon Paul Maloyc637c102015-02-05 08:36:41 -0500312 for (skb = skb_dequeue(inputq); skb; skb = skb_dequeue(inputq)) {
Jon Paul Maloyc7cad0d2015-11-19 14:30:40 -0500313 skb_linearize(skb);
Jon Paul Maloyc637c102015-02-05 08:36:41 -0500314 msg = buf_msg(skb);
315 mtype = msg_type(msg);
316 item = (struct distr_item *)msg_data(msg);
317 count = msg_data_sz(msg) / ITEM_SIZE;
318 node = msg_orignode(msg);
319 while (count--) {
Jon Maloy37922ea2018-03-29 23:20:43 +0200320 tipc_update_nametbl(net, item, node, mtype);
Jon Paul Maloyc637c102015-02-05 08:36:41 -0500321 item++;
322 }
323 kfree_skb(skb);
Per Lidenb97bf3f2006-01-02 19:04:38 +0100324 }
Ying Xue4ac1c8d2015-01-09 15:27:09 +0800325 spin_unlock_bh(&tn->nametbl_lock);
Per Lidenb97bf3f2006-01-02 19:04:38 +0100326}
327
328/**
Allan Stephens1110b8d2012-04-17 17:57:52 -0400329 * tipc_named_reinit - re-initialize local publications
YOSHIFUJI Hideakic4307282007-02-09 23:25:21 +0900330 *
Allan Stephens945af1c2011-10-14 14:42:25 -0400331 * This routine is called whenever TIPC networking is enabled.
Allan Stephens1110b8d2012-04-17 17:57:52 -0400332 * All name table entries published by this node are updated to reflect
333 * the node's new network address.
Per Lidenb97bf3f2006-01-02 19:04:38 +0100334 */
Ying Xue4ac1c8d2015-01-09 15:27:09 +0800335void tipc_named_reinit(struct net *net)
Per Lidenb97bf3f2006-01-02 19:04:38 +0100336{
Jon Maloy64a52b26d52018-03-15 16:48:52 +0100337 struct name_table *nt = tipc_name_table(net);
338 struct tipc_net *tn = tipc_net(net);
Per Lidenb97bf3f2006-01-02 19:04:38 +0100339 struct publication *publ;
Jon Maloy23fd3ea2018-03-22 20:42:49 +0100340 u32 self = tipc_own_addr(net);
Per Lidenb97bf3f2006-01-02 19:04:38 +0100341
Ying Xue4ac1c8d2015-01-09 15:27:09 +0800342 spin_lock_bh(&tn->nametbl_lock);
Allan Stephens945af1c2011-10-14 14:42:25 -0400343
Jon Maloy935439c2018-03-15 16:48:54 +0100344 list_for_each_entry_rcu(publ, &nt->node_scope, binding_node)
Jon Maloy23fd3ea2018-03-22 20:42:49 +0100345 publ->node = self;
Jon Maloy935439c2018-03-15 16:48:54 +0100346 list_for_each_entry_rcu(publ, &nt->cluster_scope, binding_node)
Jon Maloy23fd3ea2018-03-22 20:42:49 +0100347 publ->node = self;
Allan Stephens945af1c2011-10-14 14:42:25 -0400348
Ying Xue4ac1c8d2015-01-09 15:27:09 +0800349 spin_unlock_bh(&tn->nametbl_lock);
Per Lidenb97bf3f2006-01-02 19:04:38 +0100350}