1 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
3 * include/uapi/linux/tipc.h: Header for TIPC socket interface
5 * Copyright (c) 2003-2006, 2015-2016 Ericsson AB
6 * Copyright (c) 2005, 2010-2011, Wind River Systems
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19 * this software without specific prior written permission.
21 * Alternatively, this software may be distributed under the terms of the
22 * GNU General Public License ("GPL") version 2 as published by the Free
23 * Software Foundation.
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38 #ifndef _LINUX_TIPC_H_
39 #define _LINUX_TIPC_H_
41 #include <linux/types.h>
42 #include <linux/sockios.h>
45 * TIPC addressing primitives
48 struct tipc_socket_addr {
53 struct tipc_service_addr {
58 struct tipc_service_range {
65 * Application-accessible service types
68 #define TIPC_NODE_STATE 0 /* node state service type */
69 #define TIPC_TOP_SRV 1 /* topology server service type */
70 #define TIPC_LINK_STATE 2 /* link state service type */
71 #define TIPC_RESERVED_TYPES 64 /* lowest user-allowed service type */
74 * Publication scopes when binding service / service range
77 TIPC_CLUSTER_SCOPE = 2, /* 0 can also be used */
82 * Limiting values for messages
85 #define TIPC_MAX_USER_MSG_SIZE 66000U
88 * Message importance levels
91 #define TIPC_LOW_IMPORTANCE 0
92 #define TIPC_MEDIUM_IMPORTANCE 1
93 #define TIPC_HIGH_IMPORTANCE 2
94 #define TIPC_CRITICAL_IMPORTANCE 3
97 * Msg rejection/connection shutdown reasons
101 #define TIPC_ERR_NO_NAME 1
102 #define TIPC_ERR_NO_PORT 2
103 #define TIPC_ERR_NO_NODE 3
104 #define TIPC_ERR_OVERLOAD 4
105 #define TIPC_CONN_SHUTDOWN 5
108 * TIPC topology subscription service definitions
111 #define TIPC_SUB_PORTS 0x01 /* filter: evt at each match */
112 #define TIPC_SUB_SERVICE 0x02 /* filter: evt at first up/last down */
113 #define TIPC_SUB_CANCEL 0x04 /* filter: cancel a subscription */
115 #define TIPC_WAIT_FOREVER (~0) /* timeout for permanent subscription */
118 struct tipc_service_range seq; /* range of interest */
119 __u32 timeout; /* subscription duration (in ms) */
120 __u32 filter; /* bitmask of filter options */
121 char usr_handle[8]; /* available for subscriber use */
124 #define TIPC_PUBLISHED 1 /* publication event */
125 #define TIPC_WITHDRAWN 2 /* withdrawal event */
126 #define TIPC_SUBSCR_TIMEOUT 3 /* subscription timeout event */
129 __u32 event; /* event type */
130 __u32 found_lower; /* matching range */
131 __u32 found_upper; /* " " */
132 struct tipc_socket_addr port; /* associated socket */
133 struct tipc_subscr s; /* associated subscription */
145 #define PF_TIPC AF_TIPC
152 #define TIPC_ADDR_MCAST 1
153 #define TIPC_SERVICE_RANGE 1
154 #define TIPC_SERVICE_ADDR 2
155 #define TIPC_SOCKET_ADDR 3
157 struct sockaddr_tipc {
158 unsigned short family;
159 unsigned char addrtype;
162 struct tipc_socket_addr id;
163 struct tipc_service_range nameseq;
165 struct tipc_service_addr name;
172 * Ancillary data objects supported by recvmsg()
175 #define TIPC_ERRINFO 1 /* error info */
176 #define TIPC_RETDATA 2 /* returned data */
177 #define TIPC_DESTNAME 3 /* destination name */
180 * TIPC-specific socket option names
183 #define TIPC_IMPORTANCE 127 /* Default: TIPC_LOW_IMPORTANCE */
184 #define TIPC_SRC_DROPPABLE 128 /* Default: based on socket type */
185 #define TIPC_DEST_DROPPABLE 129 /* Default: based on socket type */
186 #define TIPC_CONN_TIMEOUT 130 /* Default: 8000 (ms) */
187 #define TIPC_NODE_RECVQ_DEPTH 131 /* Default: none (read only) */
188 #define TIPC_SOCK_RECVQ_DEPTH 132 /* Default: none (read only) */
189 #define TIPC_MCAST_BROADCAST 133 /* Default: TIPC selects. No arg */
190 #define TIPC_MCAST_REPLICAST 134 /* Default: TIPC selects. No arg */
191 #define TIPC_GROUP_JOIN 135 /* Takes struct tipc_group_req* */
192 #define TIPC_GROUP_LEAVE 136 /* No argument */
193 #define TIPC_SOCK_RECVQ_USED 137 /* Default: none (read only) */
194 #define TIPC_NODELAY 138 /* Default: false */
199 #define TIPC_GROUP_LOOPBACK 0x1 /* Receive copy of sent msg when match */
200 #define TIPC_GROUP_MEMBER_EVTS 0x2 /* Receive membership events in socket */
202 struct tipc_group_req {
203 __u32 type; /* group id */
204 __u32 instance; /* member id */
205 __u32 scope; /* cluster/node */
210 * Maximum sizes of TIPC bearer-related names (including terminating NULL)
211 * The string formatting for each name element is:
213 * interface: media:interface name
214 * link: node:interface-node:interface
216 #define TIPC_NODEID_LEN 16
217 #define TIPC_MAX_MEDIA_NAME 16
218 #define TIPC_MAX_IF_NAME 16
219 #define TIPC_MAX_BEARER_NAME 32
220 #define TIPC_MAX_LINK_NAME 68
222 #define SIOCGETLINKNAME SIOCPROTOPRIVATE
223 #define SIOCGETNODEID (SIOCPROTOPRIVATE + 1)
225 struct tipc_sioc_ln_req {
228 char linkname[TIPC_MAX_LINK_NAME];
231 struct tipc_sioc_nodeid_req {
233 char node_id[TIPC_NODEID_LEN];
239 #define TIPC_AEAD_ALG_NAME (32)
241 struct tipc_aead_key {
242 char alg_name[TIPC_AEAD_ALG_NAME];
243 unsigned int keylen; /* in bytes */
247 #define TIPC_AEAD_KEYLEN_MIN (16 + 4)
248 #define TIPC_AEAD_KEYLEN_MAX (32 + 4)
249 #define TIPC_AEAD_KEY_SIZE_MAX (sizeof(struct tipc_aead_key) + \
250 TIPC_AEAD_KEYLEN_MAX)
252 static inline int tipc_aead_key_size(struct tipc_aead_key *key)
254 return sizeof(*key) + key->keylen;
257 #define TIPC_REKEYING_NOW (~0U)
259 /* The macros and functions below are deprecated:
262 #define TIPC_CFG_SRV 0
263 #define TIPC_ZONE_SCOPE 1
265 #define TIPC_ADDR_NAMESEQ 1
266 #define TIPC_ADDR_NAME 2
267 #define TIPC_ADDR_ID 3
269 #define TIPC_NODE_BITS 12
270 #define TIPC_CLUSTER_BITS 12
271 #define TIPC_ZONE_BITS 8
273 #define TIPC_NODE_OFFSET 0
274 #define TIPC_CLUSTER_OFFSET TIPC_NODE_BITS
275 #define TIPC_ZONE_OFFSET (TIPC_CLUSTER_OFFSET + TIPC_CLUSTER_BITS)
277 #define TIPC_NODE_SIZE ((1UL << TIPC_NODE_BITS) - 1)
278 #define TIPC_CLUSTER_SIZE ((1UL << TIPC_CLUSTER_BITS) - 1)
279 #define TIPC_ZONE_SIZE ((1UL << TIPC_ZONE_BITS) - 1)
281 #define TIPC_NODE_MASK (TIPC_NODE_SIZE << TIPC_NODE_OFFSET)
282 #define TIPC_CLUSTER_MASK (TIPC_CLUSTER_SIZE << TIPC_CLUSTER_OFFSET)
283 #define TIPC_ZONE_MASK (TIPC_ZONE_SIZE << TIPC_ZONE_OFFSET)
285 #define TIPC_ZONE_CLUSTER_MASK (TIPC_ZONE_MASK | TIPC_CLUSTER_MASK)
287 #define tipc_portid tipc_socket_addr
288 #define tipc_name tipc_service_addr
289 #define tipc_name_seq tipc_service_range
291 static inline __u32 tipc_addr(unsigned int zone,
292 unsigned int cluster,
295 return (zone << TIPC_ZONE_OFFSET) |
296 (cluster << TIPC_CLUSTER_OFFSET) |
300 static inline unsigned int tipc_zone(__u32 addr)
302 return addr >> TIPC_ZONE_OFFSET;
305 static inline unsigned int tipc_cluster(__u32 addr)
307 return (addr & TIPC_CLUSTER_MASK) >> TIPC_CLUSTER_OFFSET;
310 static inline unsigned int tipc_node(__u32 addr)
312 return addr & TIPC_NODE_MASK;