593a5f22d8
Updated copyright notice to include the year the file was actually created. Information about file creation dates was extracted from the files in the old CVS repository at tipc.sourceforge.net. Signed-off-by: Per Liden <per.liden@nospam.ericsson.com>
128 lines
3.6 KiB
C
128 lines
3.6 KiB
C
/*
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* net/tipc/addr.h: Include file for TIPC address utility routines
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*
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* Copyright (c) 2000-2006, Ericsson AB
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* Copyright (c) 2004-2005, 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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#ifndef _TIPC_ADDR_H
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#define _TIPC_ADDR_H
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static inline u32 own_node(void)
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{
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return tipc_node(tipc_own_addr);
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}
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static inline u32 own_cluster(void)
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{
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return tipc_cluster(tipc_own_addr);
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}
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static inline u32 own_zone(void)
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{
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return tipc_zone(tipc_own_addr);
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}
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static inline int in_own_cluster(u32 addr)
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{
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return !((addr ^ tipc_own_addr) >> 12);
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}
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static inline int in_own_zone(u32 addr)
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{
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return !((addr ^ tipc_own_addr) >> 24);
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}
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static inline int is_slave(u32 addr)
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{
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return addr & 0x800;
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}
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static inline int may_route(u32 addr)
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{
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return(addr ^ tipc_own_addr) >> 11;
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}
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static inline int in_scope(u32 domain, u32 addr)
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{
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if (!domain || (domain == addr))
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return 1;
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if (domain == (addr & 0xfffff000u)) /* domain <Z.C.0> */
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return 1;
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if (domain == (addr & 0xff000000u)) /* domain <Z.0.0> */
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return 1;
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return 0;
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}
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/**
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* addr_scope - convert message lookup domain to equivalent 2-bit scope value
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*/
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static inline int addr_scope(u32 domain)
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{
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if (likely(!domain))
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return TIPC_ZONE_SCOPE;
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if (tipc_node(domain))
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return TIPC_NODE_SCOPE;
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if (tipc_cluster(domain))
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return TIPC_CLUSTER_SCOPE;
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return TIPC_ZONE_SCOPE;
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}
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/**
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* addr_domain - convert 2-bit scope value to equivalent message lookup domain
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*
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* Needed when address of a named message must be looked up a second time
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* after a network hop.
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*/
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static inline int addr_domain(int sc)
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{
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if (likely(sc == TIPC_NODE_SCOPE))
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return tipc_own_addr;
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if (sc == TIPC_CLUSTER_SCOPE)
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return tipc_addr(tipc_zone(tipc_own_addr),
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tipc_cluster(tipc_own_addr), 0);
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return tipc_addr(tipc_zone(tipc_own_addr), 0, 0);
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}
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static inline char *addr_string_fill(char *string, u32 addr)
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{
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snprintf(string, 16, "<%u.%u.%u>",
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tipc_zone(addr), tipc_cluster(addr), tipc_node(addr));
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return string;
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}
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int addr_domain_valid(u32);
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int addr_node_valid(u32 addr);
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#endif
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