2 * net/tipc/addr.c: TIPC address utility routines
4 * Copyright (c) 2003-2005, Ericsson Research Canada
5 * Copyright (c) 2004-2005, Wind River Systems
6 * Copyright (c) 2005-2006, Ericsson AB
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the names of the copyright holders nor the names of its
18 * contributors may be used to endorse or promote products derived from
19 * this software without specific prior written permission.
21 * Alternatively, this software may be distributed under the terms of the
22 * GNU General Public License ("GPL") version 2 as published by the Free
23 * Software Foundation.
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
26 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
29 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
45 u32 tipc_get_addr(void)
51 * addr_domain_valid - validates a network domain address
53 * Accepts <Z.C.N>, <Z.C.0>, <Z.0.0>, and <0.0.0>,
54 * where Z, C, and N are non-zero and do not exceed the configured limits.
56 * Returns 1 if domain address is valid, otherwise 0
59 int addr_domain_valid(u32 addr)
61 u32 n = tipc_node(addr);
62 u32 c = tipc_cluster(addr);
63 u32 z = tipc_zone(addr);
64 u32 max_nodes = tipc_max_nodes;
67 max_nodes = LOWEST_SLAVE + tipc_max_slaves;
70 if (c > tipc_max_clusters)
72 if (z > tipc_max_zones)
83 * addr_node_valid - validates a proposed network address for this node
85 * Accepts <Z.C.N>, where Z, C, and N are non-zero and do not exceed
86 * the configured limits.
88 * Returns 1 if address can be used, otherwise 0
91 int addr_node_valid(u32 addr)
93 return (addr_domain_valid(addr) && tipc_node(addr));