summaryrefslogtreecommitdiffstats
path: root/include/linux/tipc.h
blob: 4ecd0047550b315f5b0fd6daa13ec960b5eec87b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
/*
 * include/linux/tipc.h: Include file for TIPC socket interface
 * 
 * Copyright (c) 2003-2005, Ericsson Research Canada
 * Copyright (c) 2005, Wind River Systems
 * Copyright (c) 2005-2006, Ericsson AB
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice, this 
 * list of conditions and the following disclaimer.
 * Redistributions in binary form must reproduce the above copyright notice, 
 * this list of conditions and the following disclaimer in the documentation 
 * and/or other materials provided with the distribution.
 * Neither the names of the copyright holders nor the names of its 
 * contributors may be used to endorse or promote products derived from this 
 * software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _LINUX_TIPC_H_
#define _LINUX_TIPC_H_

#include <linux/types.h>

/*
 * TIPC addressing primitives
 */
 
struct tipc_portid {
	__u32 ref;
	__u32 node;
};

struct tipc_name {
	__u32 type;
	__u32 instance;
};

struct tipc_name_seq {
	__u32 type;
	__u32 lower;
	__u32 upper;
};

static inline __u32 tipc_addr(unsigned int zone,
			      unsigned int cluster,
			      unsigned int node)
{
	return (zone << 24) | (cluster << 12) | node;
}

static inline unsigned int tipc_zone(__u32 addr)
{
	return addr >> 24;
}

static inline unsigned int tipc_cluster(__u32 addr)
{
	return (addr >> 12) & 0xfff;
}

static inline unsigned int tipc_node(__u32 addr)
{
	return addr & 0xfff;
}

/*
 * Application-accessible port name types
 */

#define TIPC_CFG_SRV		0	/* configuration service name type */
#define TIPC_TOP_SRV		1	/* topology service name type */
#define TIPC_RESERVED_TYPES	64	/* lowest user-publishable name type */

/* 
 * Publication scopes when binding port names and port name sequences
 */

#define TIPC_ZONE_SCOPE		1
#define TIPC_CLUSTER_SCOPE	2
#define TIPC_NODE_SCOPE		3

/*
 * Limiting values for messages
 */

#define TIPC_MAX_USER_MSG_SIZE	66000

/*
 * Message importance levels
 */

#define TIPC_LOW_IMPORTANCE		0  /* default */
#define TIPC_MEDIUM_IMPORTANCE		1
#define TIPC_HIGH_IMPORTANCE		2
#define TIPC_CRITICAL_IMPORTANCE	3

/* 
 * Msg rejection/connection shutdown reasons
 */

#define TIPC_OK			0
#define TIPC_ERR_NO_NAME	1
#define TIPC_ERR_NO_PORT	2
#define TIPC_ERR_NO_NODE	3
#define TIPC_ERR_OVERLOAD	4
#define TIPC_CONN_SHUTDOWN	5

/*
 * TIPC topology subscription service definitions
 */

#define TIPC_SUB_PORTS     	0x01  	/* filter for port availability */
#define TIPC_SUB_SERVICE     	0x02  	/* filter for service availability */
#if 0
/* The following filter options are not currently implemented */
#define TIPC_SUB_NO_BIND_EVTS	0x04	/* filter out "publish" events */
#define TIPC_SUB_NO_UNBIND_EVTS	0x08	/* filter out "withdraw" events */
#define TIPC_SUB_SINGLE_EVT	0x10	/* expire after first event */
#endif

#define TIPC_WAIT_FOREVER	~0	/* timeout for permanent subscription */

struct tipc_subscr {
	struct tipc_name_seq seq;	/* name sequence of interest */
	__u32 timeout;			/* subscription duration (in ms) */
        __u32 filter;   		/* bitmask of filter options */
	char usr_handle[8];		/* available for subscriber use */
};

#define TIPC_PUBLISHED		1	/* publication event */
#define TIPC_WITHDRAWN		2	/* withdraw event */
#define TIPC_SUBSCR_TIMEOUT	3	/* subscription timeout event */

struct tipc_event {
	__u32 event;			/* event type */
	__u32 found_lower;		/* matching name seq instances */
	__u32 found_upper;		/*    "      "    "     "      */
	struct tipc_portid port;	/* associated port */
	struct tipc_subscr s;		/* associated subscription */
};

/*
 * Socket API
 */

#ifndef AF_TIPC
#define AF_TIPC		30
#endif

#ifndef PF_TIPC
#define PF_TIPC		AF_TIPC
#endif

#ifndef SOL_TIPC
#define SOL_TIPC	271
#endif

#define TIPC_ADDR_NAMESEQ	1
#define TIPC_ADDR_MCAST		1
#define TIPC_ADDR_NAME		2
#define TIPC_ADDR_ID		3

struct sockaddr_tipc {
	unsigned short family;
	unsigned char  addrtype;
	signed   char  scope;
	union {
		struct tipc_portid id;
		struct tipc_name_seq nameseq;
		struct {
			struct tipc_name name;
			__u32 domain; /* 0: own zone */
		} name;
	} addr;
};

/*
 * Ancillary data objects supported by recvmsg()
 */

#define TIPC_ERRINFO	1	/* error info */
#define TIPC_RETDATA	2	/* returned data */
#define TIPC_DESTNAME	3	/* destination name */

/*
 * TIPC-specific socket option values
 */

#define TIPC_IMPORTANCE		127	/* Default: TIPC_LOW_IMPORTANCE */
#define TIPC_SRC_DROPPABLE	128	/* Default: 0 (resend congested msg) */
#define TIPC_DEST_DROPPABLE	129	/* Default: based on socket type */
#define TIPC_CONN_TIMEOUT	130	/* Default: 8000 (ms)  */

#endif