cc4ff0f4f5
[ Upstream commit 8874ecae2977e5a2d4f0ba301364435b81c05938 ] We set the field 'addr_trial_end' to 'jiffies', instead of the current value 0, at the moment the node address is initialized. This guarantees we don't inadvertently enter an address trial period when the node address is explicitly set by the user. Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Acked-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
124 lines
3.7 KiB
C
124 lines
3.7 KiB
C
/*
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* net/tipc/addr.c: TIPC address utility routines
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*
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* Copyright (c) 2000-2006, 2018, Ericsson AB
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* Copyright (c) 2004-2005, 2010-2011, Wind River Systems
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the names of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "addr.h"
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#include "core.h"
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bool tipc_in_scope(bool legacy_format, u32 domain, u32 addr)
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{
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if (!domain || (domain == addr))
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return true;
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if (!legacy_format)
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return false;
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if (domain == tipc_cluster_mask(addr)) /* domain <Z.C.0> */
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return true;
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if (domain == (addr & TIPC_ZONE_CLUSTER_MASK)) /* domain <Z.C.0> */
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return true;
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if (domain == (addr & TIPC_ZONE_MASK)) /* domain <Z.0.0> */
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return true;
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return false;
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}
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void tipc_set_node_id(struct net *net, u8 *id)
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{
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struct tipc_net *tn = tipc_net(net);
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u32 *tmp = (u32 *)id;
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memcpy(tn->node_id, id, NODE_ID_LEN);
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tipc_nodeid2string(tn->node_id_string, id);
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tn->trial_addr = tmp[0] ^ tmp[1] ^ tmp[2] ^ tmp[3];
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pr_info("Own node identity %s, cluster identity %u\n",
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tipc_own_id_string(net), tn->net_id);
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}
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void tipc_set_node_addr(struct net *net, u32 addr)
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{
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struct tipc_net *tn = tipc_net(net);
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u8 node_id[NODE_ID_LEN] = {0,};
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tn->node_addr = addr;
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if (!tipc_own_id(net)) {
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sprintf(node_id, "%x", addr);
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tipc_set_node_id(net, node_id);
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}
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tn->trial_addr = addr;
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tn->addr_trial_end = jiffies;
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pr_info("32-bit node address hash set to %x\n", addr);
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}
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char *tipc_nodeid2string(char *str, u8 *id)
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{
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int i;
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u8 c;
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/* Already a string ? */
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for (i = 0; i < NODE_ID_LEN; i++) {
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c = id[i];
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if (c >= '0' && c <= '9')
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continue;
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if (c >= 'A' && c <= 'Z')
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continue;
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if (c >= 'a' && c <= 'z')
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continue;
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if (c == '.')
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continue;
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if (c == ':')
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continue;
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if (c == '_')
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continue;
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if (c == '-')
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continue;
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if (c == '@')
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continue;
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if (c != 0)
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break;
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}
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if (i == NODE_ID_LEN) {
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memcpy(str, id, NODE_ID_LEN);
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str[NODE_ID_LEN] = 0;
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return str;
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}
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/* Translate to hex string */
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for (i = 0; i < NODE_ID_LEN; i++)
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sprintf(&str[2 * i], "%02x", id[i]);
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/* Strip off trailing zeroes */
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for (i = NODE_ID_STR_LEN - 2; str[i] == '0'; i--)
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str[i] = 0;
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return str;
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}
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