2 * net/tipc/addr.h: Include file for 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
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41 static inline u32 own_node(void)
43 return tipc_node(tipc_own_addr);
46 static inline u32 own_cluster(void)
48 return tipc_cluster(tipc_own_addr);
51 static inline u32 own_zone(void)
53 return tipc_zone(tipc_own_addr);
56 static inline int in_own_cluster(u32 addr)
58 return !((addr ^ tipc_own_addr) >> 12);
61 static inline int in_own_zone(u32 addr)
63 return !((addr ^ tipc_own_addr) >> 24);
66 static inline int is_slave(u32 addr)
71 static inline int may_route(u32 addr)
73 return(addr ^ tipc_own_addr) >> 11;
76 static inline int in_scope(u32 domain, u32 addr)
78 if (!domain || (domain == addr))
80 if (domain == (addr & 0xfffff000u)) /* domain <Z.C.0> */
82 if (domain == (addr & 0xff000000u)) /* domain <Z.0.0> */
88 * addr_scope - convert message lookup domain to equivalent 2-bit scope value
91 static inline int addr_scope(u32 domain)
94 return TIPC_ZONE_SCOPE;
95 if (tipc_node(domain))
96 return TIPC_NODE_SCOPE;
97 if (tipc_cluster(domain))
98 return TIPC_CLUSTER_SCOPE;
99 return TIPC_ZONE_SCOPE;
103 * addr_domain - convert 2-bit scope value to equivalent message lookup domain
105 * Needed when address of a named message must be looked up a second time
106 * after a network hop.
109 static inline int addr_domain(int sc)
111 if (likely(sc == TIPC_NODE_SCOPE))
112 return tipc_own_addr;
113 if (sc == TIPC_CLUSTER_SCOPE)
114 return tipc_addr(tipc_zone(tipc_own_addr),
115 tipc_cluster(tipc_own_addr), 0);
116 return tipc_addr(tipc_zone(tipc_own_addr), 0, 0);
119 static inline char *addr_string_fill(char *string, u32 addr)
121 snprintf(string, 16, "<%u.%u.%u>",
122 tipc_zone(addr), tipc_cluster(addr), tipc_node(addr));
126 int addr_domain_valid(u32);
127 int addr_node_valid(u32 addr);