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