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1 /*
2 * include/linux/tipc.h: Include file for TIPC socket interface
3 *
4 * Copyright (c) 2003-2006, Ericsson AB
5 * Copyright (c) 2005, Wind River Systems
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the names of the copyright holders nor the names of its
17 * contributors may be used to endorse or promote products derived from
18 * this software without specific prior written permission.
19 *
20 * Alternatively, this software may be distributed under the terms of the
21 * GNU General Public License ("GPL") version 2 as published by the Free
22 * Software Foundation.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
28 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
32 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
33 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34 * POSSIBILITY OF SUCH DAMAGE.
35 */
36
37 #ifndef _LINUX_TIPC_H_
38 #define _LINUX_TIPC_H_
39
40 #include <linux/types.h>
41
42 /*
43 * TIPC addressing primitives
44 */
45
46 struct tipc_portid {
47 __u32 ref;
48 __u32 node;
49 };
50
51 struct tipc_name {
52 __u32 type;
53 __u32 instance;
54 };
55
56 struct tipc_name_seq {
57 __u32 type;
58 __u32 lower;
59 __u32 upper;
60 };
61
62 static inline __u32 tipc_addr(unsigned int zone,
63 unsigned int cluster,
64 unsigned int node)
65 {
66 return (zone << 24) | (cluster << 12) | node;
67 }
68
69 static inline unsigned int tipc_zone(__u32 addr)
70 {
71 return addr >> 24;
72 }
73
74 static inline unsigned int tipc_cluster(__u32 addr)
75 {
76 return (addr >> 12) & 0xfff;
77 }
78
79 static inline unsigned int tipc_node(__u32 addr)
80 {
81 return addr & 0xfff;
82 }
83
84 /*
85 * Application-accessible port name types
86 */
87
88 #define TIPC_CFG_SRV 0 /* configuration service name type */
89 #define TIPC_TOP_SRV 1 /* topology service name type */
90 #define TIPC_RESERVED_TYPES 64 /* lowest user-publishable name type */
91
92 /*
93 * Publication scopes when binding port names and port name sequences
94 */
95
96 #define TIPC_ZONE_SCOPE 1
97 #define TIPC_CLUSTER_SCOPE 2
98 #define TIPC_NODE_SCOPE 3
99
100 /*
101 * Limiting values for messages
102 */
103
104 #define TIPC_MAX_USER_MSG_SIZE 66000
105
106 /*
107 * Message importance levels
108 */
109
110 #define TIPC_LOW_IMPORTANCE 0 /* default */
111 #define TIPC_MEDIUM_IMPORTANCE 1
112 #define TIPC_HIGH_IMPORTANCE 2
113 #define TIPC_CRITICAL_IMPORTANCE 3
114
115 /*
116 * Msg rejection/connection shutdown reasons
117 */
118
119 #define TIPC_OK 0
120 #define TIPC_ERR_NO_NAME 1
121 #define TIPC_ERR_NO_PORT 2
122 #define TIPC_ERR_NO_NODE 3
123 #define TIPC_ERR_OVERLOAD 4
124 #define TIPC_CONN_SHUTDOWN 5
125
126 /*
127 * TIPC topology subscription service definitions
128 */
129
130 #define TIPC_SUB_PORTS 0x01 /* filter for port availability */
131 #define TIPC_SUB_SERVICE 0x02 /* filter for service availability */
132 #define TIPC_SUB_CANCEL 0x04 /* cancel a subscription */
133 #if 0
134 /* The following filter options are not currently implemented */
135 #define TIPC_SUB_NO_BIND_EVTS 0x04 /* filter out "publish" events */
136 #define TIPC_SUB_NO_UNBIND_EVTS 0x08 /* filter out "withdraw" events */
137 #define TIPC_SUB_SINGLE_EVT 0x10 /* expire after first event */
138 #endif
139
140 #define TIPC_WAIT_FOREVER ~0 /* timeout for permanent subscription */
141
142 struct tipc_subscr {
143 struct tipc_name_seq seq; /* name sequence of interest */
144 __u32 timeout; /* subscription duration (in ms) */
145 __u32 filter; /* bitmask of filter options */
146 char usr_handle[8]; /* available for subscriber use */
147 };
148
149 #define TIPC_PUBLISHED 1 /* publication event */
150 #define TIPC_WITHDRAWN 2 /* withdraw event */
151 #define TIPC_SUBSCR_TIMEOUT 3 /* subscription timeout event */
152
153 struct tipc_event {
154 __u32 event; /* event type */
155 __u32 found_lower; /* matching name seq instances */
156 __u32 found_upper; /* " " " " */
157 struct tipc_portid port; /* associated port */
158 struct tipc_subscr s; /* associated subscription */
159 };
160
161 /*
162 * Socket API
163 */
164
165 #ifndef AF_TIPC
166 #define AF_TIPC 30
167 #endif
168
169 #ifndef PF_TIPC
170 #define PF_TIPC AF_TIPC
171 #endif
172
173 #ifndef SOL_TIPC
174 #define SOL_TIPC 271
175 #endif
176
177 #define TIPC_ADDR_NAMESEQ 1
178 #define TIPC_ADDR_MCAST 1
179 #define TIPC_ADDR_NAME 2
180 #define TIPC_ADDR_ID 3
181
182 struct sockaddr_tipc {
183 unsigned short family;
184 unsigned char addrtype;
185 signed char scope;
186 union {
187 struct tipc_portid id;
188 struct tipc_name_seq nameseq;
189 struct {
190 struct tipc_name name;
191 __u32 domain; /* 0: own zone */
192 } name;
193 } addr;
194 };
195
196 /*
197 * Ancillary data objects supported by recvmsg()
198 */
199
200 #define TIPC_ERRINFO 1 /* error info */
201 #define TIPC_RETDATA 2 /* returned data */
202 #define TIPC_DESTNAME 3 /* destination name */
203
204 /*
205 * TIPC-specific socket option values
206 */
207
208 #define TIPC_IMPORTANCE 127 /* Default: TIPC_LOW_IMPORTANCE */
209 #define TIPC_SRC_DROPPABLE 128 /* Default: 0 (resend congested msg) */
210 #define TIPC_DEST_DROPPABLE 129 /* Default: based on socket type */
211 #define TIPC_CONN_TIMEOUT 130 /* Default: 8000 (ms) */
212
213 #endif