Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 1 | /* |
| 2 | * net/tipc/name_distr.c: TIPC name distribution code |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 3 | * |
Per Liden | 593a5f2 | 2006-01-11 19:14:19 +0100 | [diff] [blame] | 4 | * Copyright (c) 2000-2006, Ericsson AB |
Allan Stephens | 431697e | 2011-02-23 13:51:15 -0500 | [diff] [blame] | 5 | * Copyright (c) 2005, 2010-2011, Wind River Systems |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 6 | * All rights reserved. |
| 7 | * |
Per Liden | 9ea1fd3 | 2006-01-11 13:30:43 +0100 | [diff] [blame] | 8 | * Redistribution and use in source and binary forms, with or without |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 9 | * modification, are permitted provided that the following conditions are met: |
| 10 | * |
Per Liden | 9ea1fd3 | 2006-01-11 13:30:43 +0100 | [diff] [blame] | 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. |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 19 | * |
Per Liden | 9ea1fd3 | 2006-01-11 13:30:43 +0100 | [diff] [blame] | 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 |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 34 | * POSSIBILITY OF SUCH DAMAGE. |
| 35 | */ |
| 36 | |
| 37 | #include "core.h" |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 38 | #include "link.h" |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 39 | #include "name_distr.h" |
| 40 | |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 41 | #define ITEM_SIZE sizeof(struct distr_item) |
| 42 | |
| 43 | /** |
| 44 | * struct distr_item - publication info distributed to other nodes |
| 45 | * @type: name sequence type |
| 46 | * @lower: name sequence lower bound |
| 47 | * @upper: name sequence upper bound |
| 48 | * @ref: publishing port reference |
| 49 | * @key: publication key |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 50 | * |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 51 | * ===> All fields are stored in network byte order. <=== |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 52 | * |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 53 | * First 3 fields identify (name or) name sequence being published. |
| 54 | * Reference field uniquely identifies port that published name sequence. |
| 55 | * Key field uniquely identifies publication, in the event a port has |
| 56 | * multiple publications of the same name sequence. |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 57 | * |
| 58 | * Note: There is no field that identifies the publishing node because it is |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 59 | * the same for all items contained within a publication message. |
| 60 | */ |
| 61 | |
| 62 | struct distr_item { |
Al Viro | 3e6c8cd | 2006-11-08 00:19:09 -0800 | [diff] [blame] | 63 | __be32 type; |
| 64 | __be32 lower; |
| 65 | __be32 upper; |
| 66 | __be32 ref; |
| 67 | __be32 key; |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 68 | }; |
| 69 | |
| 70 | /** |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 71 | * List of externally visible publications by this node -- |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 72 | * that is, all publications having scope > TIPC_NODE_SCOPE. |
| 73 | */ |
| 74 | |
| 75 | static LIST_HEAD(publ_root); |
Allan Stephens | e3ec9c7 | 2010-12-31 18:59:34 +0000 | [diff] [blame] | 76 | static u32 publ_cnt; |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 77 | |
| 78 | /** |
| 79 | * publ_to_item - add publication info to a publication message |
| 80 | */ |
| 81 | |
| 82 | static void publ_to_item(struct distr_item *i, struct publication *p) |
| 83 | { |
| 84 | i->type = htonl(p->type); |
| 85 | i->lower = htonl(p->lower); |
| 86 | i->upper = htonl(p->upper); |
| 87 | i->ref = htonl(p->ref); |
| 88 | i->key = htonl(p->key); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 89 | } |
| 90 | |
| 91 | /** |
| 92 | * named_prepare_buf - allocate & initialize a publication message |
| 93 | */ |
| 94 | |
| 95 | static struct sk_buff *named_prepare_buf(u32 type, u32 size, u32 dest) |
| 96 | { |
stephen hemminger | 31e3c3f | 2010-10-13 13:20:35 +0000 | [diff] [blame] | 97 | struct sk_buff *buf = tipc_buf_acquire(LONG_H_SIZE + size); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 98 | struct tipc_msg *msg; |
| 99 | |
| 100 | if (buf != NULL) { |
| 101 | msg = buf_msg(buf); |
Allan Stephens | c68ca7b | 2010-05-11 14:30:12 +0000 | [diff] [blame] | 102 | tipc_msg_init(msg, NAME_DISTRIBUTOR, type, LONG_H_SIZE, dest); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 103 | msg_set_size(msg, LONG_H_SIZE + size); |
| 104 | } |
| 105 | return buf; |
| 106 | } |
| 107 | |
Allan Stephens | 8f92df6 | 2010-12-31 18:59:19 +0000 | [diff] [blame] | 108 | static void named_cluster_distribute(struct sk_buff *buf) |
| 109 | { |
| 110 | struct sk_buff *buf_copy; |
| 111 | struct tipc_node *n_ptr; |
Allan Stephens | 8f92df6 | 2010-12-31 18:59:19 +0000 | [diff] [blame] | 112 | |
Allan Stephens | 672d99e | 2011-02-25 18:42:52 -0500 | [diff] [blame] | 113 | list_for_each_entry(n_ptr, &tipc_node_list, list) { |
Paul Gortmaker | 8f19afb | 2011-02-28 11:36:21 -0400 | [diff] [blame] | 114 | if (tipc_node_active_links(n_ptr)) { |
Allan Stephens | 8f92df6 | 2010-12-31 18:59:19 +0000 | [diff] [blame] | 115 | buf_copy = skb_copy(buf, GFP_ATOMIC); |
| 116 | if (!buf_copy) |
| 117 | break; |
| 118 | msg_set_destnode(buf_msg(buf_copy), n_ptr->addr); |
| 119 | tipc_link_send(buf_copy, n_ptr->addr, n_ptr->addr); |
| 120 | } |
| 121 | } |
| 122 | |
| 123 | buf_discard(buf); |
| 124 | } |
| 125 | |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 126 | /** |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 127 | * tipc_named_publish - tell other nodes about a new publication by this node |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 128 | */ |
| 129 | |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 130 | void tipc_named_publish(struct publication *publ) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 131 | { |
| 132 | struct sk_buff *buf; |
| 133 | struct distr_item *item; |
| 134 | |
Allan Stephens | 08c31f7 | 2006-10-16 21:56:04 -0700 | [diff] [blame] | 135 | list_add_tail(&publ->local_list, &publ_root); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 136 | publ_cnt++; |
| 137 | |
| 138 | buf = named_prepare_buf(PUBLICATION, ITEM_SIZE, 0); |
| 139 | if (!buf) { |
Allan Stephens | a10bd92 | 2006-06-25 23:52:17 -0700 | [diff] [blame] | 140 | warn("Publication distribution failure\n"); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 141 | return; |
| 142 | } |
| 143 | |
| 144 | item = (struct distr_item *)msg_data(buf_msg(buf)); |
| 145 | publ_to_item(item, publ); |
Allan Stephens | 8f92df6 | 2010-12-31 18:59:19 +0000 | [diff] [blame] | 146 | named_cluster_distribute(buf); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 147 | } |
| 148 | |
| 149 | /** |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 150 | * tipc_named_withdraw - tell other nodes about a withdrawn publication by this node |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 151 | */ |
| 152 | |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 153 | void tipc_named_withdraw(struct publication *publ) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 154 | { |
| 155 | struct sk_buff *buf; |
| 156 | struct distr_item *item; |
| 157 | |
| 158 | list_del(&publ->local_list); |
| 159 | publ_cnt--; |
| 160 | |
| 161 | buf = named_prepare_buf(WITHDRAWAL, ITEM_SIZE, 0); |
| 162 | if (!buf) { |
Allan Stephens | a10bd92 | 2006-06-25 23:52:17 -0700 | [diff] [blame] | 163 | warn("Withdrawl distribution failure\n"); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 164 | return; |
| 165 | } |
| 166 | |
| 167 | item = (struct distr_item *)msg_data(buf_msg(buf)); |
| 168 | publ_to_item(item, publ); |
Allan Stephens | 8f92df6 | 2010-12-31 18:59:19 +0000 | [diff] [blame] | 169 | named_cluster_distribute(buf); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 170 | } |
| 171 | |
| 172 | /** |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 173 | * tipc_named_node_up - tell specified node about all publications by this node |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 174 | */ |
| 175 | |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 176 | void tipc_named_node_up(unsigned long node) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 177 | { |
| 178 | struct publication *publ; |
Sam Ravnborg | 1fc54d8 | 2006-03-20 22:36:47 -0800 | [diff] [blame] | 179 | struct distr_item *item = NULL; |
| 180 | struct sk_buff *buf = NULL; |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 181 | u32 left = 0; |
| 182 | u32 rest; |
| 183 | u32 max_item_buf; |
| 184 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 185 | read_lock_bh(&tipc_nametbl_lock); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 186 | max_item_buf = TIPC_MAX_USER_MSG_SIZE / ITEM_SIZE; |
| 187 | max_item_buf *= ITEM_SIZE; |
| 188 | rest = publ_cnt * ITEM_SIZE; |
| 189 | |
| 190 | list_for_each_entry(publ, &publ_root, local_list) { |
| 191 | if (!buf) { |
| 192 | left = (rest <= max_item_buf) ? rest : max_item_buf; |
| 193 | rest -= left; |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 194 | buf = named_prepare_buf(PUBLICATION, left, node); |
Allan Stephens | a10bd92 | 2006-06-25 23:52:17 -0700 | [diff] [blame] | 195 | if (!buf) { |
| 196 | warn("Bulk publication distribution failure\n"); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 197 | goto exit; |
| 198 | } |
| 199 | item = (struct distr_item *)msg_data(buf_msg(buf)); |
| 200 | } |
| 201 | publ_to_item(item, publ); |
| 202 | item++; |
| 203 | left -= ITEM_SIZE; |
| 204 | if (!left) { |
| 205 | msg_set_link_selector(buf_msg(buf), node); |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 206 | tipc_link_send(buf, node, node); |
Sam Ravnborg | 1fc54d8 | 2006-03-20 22:36:47 -0800 | [diff] [blame] | 207 | buf = NULL; |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 208 | } |
| 209 | } |
| 210 | exit: |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 211 | read_unlock_bh(&tipc_nametbl_lock); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 212 | } |
| 213 | |
| 214 | /** |
Allan Stephens | f137917 | 2011-02-23 14:13:41 -0500 | [diff] [blame] | 215 | * named_purge_publ - remove publication associated with a failed node |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 216 | * |
| 217 | * Invoked for each publication issued by a newly failed node. |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 218 | * Removes publication structure from name table & deletes it. |
| 219 | * In rare cases the link may have come back up again when this |
| 220 | * function is called, and we have two items representing the same |
| 221 | * publication. Nudge this item's key to distinguish it from the other. |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 222 | */ |
| 223 | |
Allan Stephens | f137917 | 2011-02-23 14:13:41 -0500 | [diff] [blame] | 224 | static void named_purge_publ(struct publication *publ) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 225 | { |
| 226 | struct publication *p; |
Allan Stephens | f131072 | 2006-06-25 23:51:37 -0700 | [diff] [blame] | 227 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 228 | write_lock_bh(&tipc_nametbl_lock); |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 229 | publ->key += 1222345; |
| 230 | p = tipc_nametbl_remove_publ(publ->type, publ->lower, |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 231 | publ->node, publ->ref, publ->key); |
Allan Stephens | 431697e | 2011-02-23 13:51:15 -0500 | [diff] [blame] | 232 | if (p) |
| 233 | tipc_nodesub_unsubscribe(&p->subscr); |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 234 | write_unlock_bh(&tipc_nametbl_lock); |
Allan Stephens | f131072 | 2006-06-25 23:51:37 -0700 | [diff] [blame] | 235 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 236 | if (p != publ) { |
Allan Stephens | f131072 | 2006-06-25 23:51:37 -0700 | [diff] [blame] | 237 | err("Unable to remove publication from failed node\n" |
| 238 | "(type=%u, lower=%u, node=0x%x, ref=%u, key=%u)\n", |
| 239 | publ->type, publ->lower, publ->node, publ->ref, publ->key); |
| 240 | } |
| 241 | |
Allan Stephens | e83504f | 2010-12-31 18:59:30 +0000 | [diff] [blame] | 242 | kfree(p); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 243 | } |
| 244 | |
| 245 | /** |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 246 | * tipc_named_recv - process name table update message sent by another node |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 247 | */ |
| 248 | |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 249 | void tipc_named_recv(struct sk_buff *buf) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 250 | { |
| 251 | struct publication *publ; |
| 252 | struct tipc_msg *msg = buf_msg(buf); |
| 253 | struct distr_item *item = (struct distr_item *)msg_data(msg); |
| 254 | u32 count = msg_data_sz(msg) / ITEM_SIZE; |
| 255 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 256 | write_lock_bh(&tipc_nametbl_lock); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 257 | while (count--) { |
| 258 | if (msg_type(msg) == PUBLICATION) { |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 259 | publ = tipc_nametbl_insert_publ(ntohl(item->type), |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 260 | ntohl(item->lower), |
| 261 | ntohl(item->upper), |
| 262 | TIPC_CLUSTER_SCOPE, |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 263 | msg_orignode(msg), |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 264 | ntohl(item->ref), |
| 265 | ntohl(item->key)); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 266 | if (publ) { |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 267 | tipc_nodesub_subscribe(&publ->subscr, |
| 268 | msg_orignode(msg), |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 269 | publ, |
Allan Stephens | f137917 | 2011-02-23 14:13:41 -0500 | [diff] [blame] | 270 | (net_ev_handler) |
| 271 | named_purge_publ); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 272 | } |
| 273 | } else if (msg_type(msg) == WITHDRAWAL) { |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 274 | publ = tipc_nametbl_remove_publ(ntohl(item->type), |
| 275 | ntohl(item->lower), |
| 276 | msg_orignode(msg), |
| 277 | ntohl(item->ref), |
| 278 | ntohl(item->key)); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 279 | |
| 280 | if (publ) { |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 281 | tipc_nodesub_unsubscribe(&publ->subscr); |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 282 | kfree(publ); |
Allan Stephens | f131072 | 2006-06-25 23:51:37 -0700 | [diff] [blame] | 283 | } else { |
| 284 | err("Unable to remove publication by node 0x%x\n" |
| 285 | "(type=%u, lower=%u, ref=%u, key=%u)\n", |
| 286 | msg_orignode(msg), |
| 287 | ntohl(item->type), ntohl(item->lower), |
| 288 | ntohl(item->ref), ntohl(item->key)); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 289 | } |
| 290 | } else { |
Allan Stephens | a10bd92 | 2006-06-25 23:52:17 -0700 | [diff] [blame] | 291 | warn("Unrecognized name table message received\n"); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 292 | } |
| 293 | item++; |
| 294 | } |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 295 | write_unlock_bh(&tipc_nametbl_lock); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 296 | buf_discard(buf); |
| 297 | } |
| 298 | |
| 299 | /** |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 300 | * tipc_named_reinit - re-initialize local publication list |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 301 | * |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 302 | * This routine is called whenever TIPC networking is (re)enabled. |
| 303 | * All existing publications by this node that have "cluster" or "zone" scope |
| 304 | * are updated to reflect the node's current network address. |
| 305 | * (If the node's address is unchanged, the update loop terminates immediately.) |
| 306 | */ |
| 307 | |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 308 | void tipc_named_reinit(void) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 309 | { |
| 310 | struct publication *publ; |
| 311 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 312 | write_lock_bh(&tipc_nametbl_lock); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 313 | list_for_each_entry(publ, &publ_root, local_list) { |
| 314 | if (publ->node == tipc_own_addr) |
| 315 | break; |
| 316 | publ->node = tipc_own_addr; |
| 317 | } |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 318 | write_unlock_bh(&tipc_nametbl_lock); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 319 | } |