1 /* 1 /*
2 * net/tipc/addr.h: Include file for TIPC addr 2 * net/tipc/addr.h: Include file for TIPC address utility routines
3 * 3 *
4 * Copyright (c) 2000-2006, 2018, Ericsson AB !! 4 * Copyright (c) 2000-2006, Ericsson AB
5 * Copyright (c) 2004-2005, Wind River Systems 5 * Copyright (c) 2004-2005, Wind River Systems
6 * Copyright (c) 2020-2021, Red Hat Inc <<
7 * All rights reserved. 6 * All rights reserved.
8 * 7 *
9 * Redistribution and use in source and binary 8 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that t 9 * modification, are permitted provided that the following conditions are met:
11 * 10 *
12 * 1. Redistributions of source code must reta 11 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the 12 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must repr 13 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the 14 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials pro 15 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the names of the copyright holde 16 * 3. Neither the names of the copyright holders nor the names of its
18 * contributors may be used to endorse or p 17 * contributors may be used to endorse or promote products derived from
19 * this software without specific prior wri 18 * this software without specific prior written permission.
20 * 19 *
21 * Alternatively, this software may be distrib 20 * Alternatively, this software may be distributed under the terms of the
22 * GNU General Public License ("GPL") version 21 * GNU General Public License ("GPL") version 2 as published by the Free
23 * Software Foundation. 22 * Software Foundation.
24 * 23 *
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
26 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCL 25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND F 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYR 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
29 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL 28 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT L 29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THE 31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUD 32 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 * ARISING IN ANY WAY OUT OF THE USE OF THIS S 33 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE. 34 * POSSIBILITY OF SUCH DAMAGE.
36 */ 35 */
37 36
38 #ifndef _TIPC_ADDR_H 37 #ifndef _TIPC_ADDR_H
39 #define _TIPC_ADDR_H 38 #define _TIPC_ADDR_H
40 39
41 #include <linux/types.h> !! 40 static inline u32 own_node(void)
42 #include <linux/tipc.h> <<
43 #include <net/net_namespace.h> <<
44 #include <net/netns/generic.h> <<
45 #include "core.h" <<
46 <<
47 /* Struct tipc_uaddr: internal version of stru <<
48 * Must be kept aligned both regarding field p <<
49 */ <<
50 struct tipc_uaddr { <<
51 unsigned short family; <<
52 unsigned char addrtype; <<
53 signed char scope; <<
54 union { <<
55 struct { <<
56 struct tipc_service_ad <<
57 u32 lookup_node; <<
58 }; <<
59 struct tipc_service_range sr; <<
60 struct tipc_socket_addr sk; <<
61 }; <<
62 }; <<
63 <<
64 static inline void tipc_uaddr(struct tipc_uadd <<
65 u32 type, u32 lo <<
66 { 41 {
67 ua->family = AF_TIPC; !! 42 return tipc_node(tipc_own_addr);
68 ua->addrtype = atype; <<
69 ua->scope = scope; <<
70 ua->sr.type = type; <<
71 ua->sr.lower = lower; <<
72 ua->sr.upper = upper; <<
73 } 43 }
74 44
75 static inline bool tipc_uaddr_valid(struct tip !! 45 static inline u32 own_cluster(void)
76 { 46 {
77 u32 atype; !! 47 return tipc_cluster(tipc_own_addr);
78 <<
79 if (len < sizeof(struct sockaddr_tipc) <<
80 return false; <<
81 atype = ua->addrtype; <<
82 if (ua->family != AF_TIPC) <<
83 return false; <<
84 if (atype == TIPC_SERVICE_ADDR || atyp <<
85 return true; <<
86 if (atype == TIPC_SERVICE_RANGE) <<
87 return ua->sr.upper >= ua->sr. <<
88 return false; <<
89 } 48 }
90 49
91 static inline u32 tipc_own_addr(struct net *ne !! 50 static inline u32 own_zone(void)
92 { 51 {
93 return tipc_net(net)->node_addr; !! 52 return tipc_zone(tipc_own_addr);
94 } 53 }
95 54
96 static inline u8 *tipc_own_id(struct net *net) !! 55 static inline int in_own_cluster(u32 addr)
97 { 56 {
98 struct tipc_net *tn = tipc_net(net); !! 57 return !((addr ^ tipc_own_addr) >> 12);
>> 58 }
99 59
100 if (!strlen(tn->node_id_string)) !! 60 static inline int is_slave(u32 addr)
101 return NULL; !! 61 {
102 return tn->node_id; !! 62 return addr & 0x800;
103 } 63 }
104 64
105 static inline char *tipc_own_id_string(struct !! 65 static inline int may_route(u32 addr)
106 { 66 {
107 return tipc_net(net)->node_id_string; !! 67 return(addr ^ tipc_own_addr) >> 11;
108 } 68 }
109 69
110 static inline u32 tipc_cluster_mask(u32 addr) !! 70 static inline int in_scope(u32 domain, u32 addr)
111 { 71 {
112 return addr & TIPC_ZONE_CLUSTER_MASK; !! 72 if (!domain || (domain == addr))
>> 73 return 1;
>> 74 if (domain == (addr & 0xfffff000u)) /* domain <Z.C.0> */
>> 75 return 1;
>> 76 if (domain == (addr & 0xff000000u)) /* domain <Z.0.0> */
>> 77 return 1;
>> 78 return 0;
113 } 79 }
114 80
115 static inline int tipc_node2scope(u32 node) !! 81 /**
>> 82 * addr_scope - convert message lookup domain to equivalent 2-bit scope value
>> 83 */
>> 84
>> 85 static inline int addr_scope(u32 domain)
116 { 86 {
117 return node ? TIPC_NODE_SCOPE : TIPC_C !! 87 if (likely(!domain))
>> 88 return TIPC_ZONE_SCOPE;
>> 89 if (tipc_node(domain))
>> 90 return TIPC_NODE_SCOPE;
>> 91 if (tipc_cluster(domain))
>> 92 return TIPC_CLUSTER_SCOPE;
>> 93 return TIPC_ZONE_SCOPE;
118 } 94 }
119 95
120 static inline int tipc_scope2node(struct net * !! 96 /**
>> 97 * addr_domain - convert 2-bit scope value to equivalent message lookup domain
>> 98 *
>> 99 * Needed when address of a named message must be looked up a second time
>> 100 * after a network hop.
>> 101 */
>> 102
>> 103 static inline int addr_domain(int sc)
121 { 104 {
122 return sc != TIPC_NODE_SCOPE ? 0 : tip !! 105 if (likely(sc == TIPC_NODE_SCOPE))
>> 106 return tipc_own_addr;
>> 107 if (sc == TIPC_CLUSTER_SCOPE)
>> 108 return tipc_addr(tipc_zone(tipc_own_addr),
>> 109 tipc_cluster(tipc_own_addr), 0);
>> 110 return tipc_addr(tipc_zone(tipc_own_addr), 0, 0);
123 } 111 }
124 112
125 static inline int in_own_node(struct net *net, !! 113 static inline char *addr_string_fill(char *string, u32 addr)
126 { 114 {
127 return addr == tipc_own_addr(net) || ! !! 115 snprintf(string, 16, "<%u.%u.%u>",
>> 116 tipc_zone(addr), tipc_cluster(addr), tipc_node(addr));
>> 117 return string;
128 } 118 }
129 119
130 bool tipc_in_scope(bool legacy_format, u32 dom !! 120 int tipc_addr_domain_valid(u32);
131 void tipc_set_node_id(struct net *net, u8 *id) !! 121 int tipc_addr_node_valid(u32 addr);
132 void tipc_set_node_addr(struct net *net, u32 a <<
133 char *tipc_nodeid2string(char *str, u8 *id); <<
134 122
135 #endif 123 #endif
136 124
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