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e2be04c7 | 1 | /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */ |
ea714ccd | 2 | /* |
8941bbcd | 3 | * include/uapi/linux/tipc_config.h: Header for TIPC configuration interface |
0e65967e | 4 | * |
9da1c8b6 | 5 | * Copyright (c) 2003-2006, Ericsson AB |
77c81e0b | 6 | * Copyright (c) 2005-2007, 2010-2011, Wind River Systems |
ea714ccd PL |
7 | * All rights reserved. |
8 | * | |
9ea1fd3c | 9 | * Redistribution and use in source and binary forms, with or without |
ea714ccd PL |
10 | * modification, are permitted provided that the following conditions are met: |
11 | * | |
9ea1fd3c PL |
12 | * 1. Redistributions of source code must retain the above copyright |
13 | * notice, this list of conditions and the following disclaimer. | |
14 | * 2. Redistributions in binary form must reproduce the above copyright | |
15 | * notice, this list of conditions and the following disclaimer in the | |
16 | * documentation and/or other materials provided with the distribution. | |
17 | * 3. Neither the names of the copyright holders nor the names of its | |
18 | * contributors may be used to endorse or promote products derived from | |
19 | * this software without specific prior written permission. | |
ea714ccd | 20 | * |
9ea1fd3c PL |
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. | |
24 | * | |
25 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
26 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
27 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
28 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | |
29 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
30 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
31 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
32 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
33 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
34 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
ea714ccd PL |
35 | * POSSIBILITY OF SUCH DAMAGE. |
36 | */ | |
37 | ||
38 | #ifndef _LINUX_TIPC_CONFIG_H_ | |
39 | #define _LINUX_TIPC_CONFIG_H_ | |
40 | ||
41 | #include <linux/types.h> | |
42 | #include <linux/string.h> | |
78acb1f9 | 43 | #include <linux/tipc.h> |
ea714ccd PL |
44 | #include <asm/byteorder.h> |
45 | ||
3828620b BH |
46 | #ifndef __KERNEL__ |
47 | #include <arpa/inet.h> /* for ntohs etc. */ | |
48 | #endif | |
49 | ||
ea714ccd PL |
50 | /* |
51 | * Configuration | |
52 | * | |
53 | * All configuration management messaging involves sending a request message | |
54 | * to the TIPC configuration service on a node, which sends a reply message | |
55 | * back. (In the future multi-message replies may be supported.) | |
56 | * | |
57 | * Both request and reply messages consist of a transport header and payload. | |
58 | * The transport header contains info about the desired operation; | |
59 | * the payload consists of zero or more type/length/value (TLV) items | |
60 | * which specify parameters or results for the operation. | |
61 | * | |
62 | * For many operations, the request and reply messages have a fixed number | |
0e65967e | 63 | * of TLVs (usually zero or one); however, some reply messages may return |
ea714ccd PL |
64 | * a variable number of TLVs. A failed request is denoted by the presence |
65 | * of an "error string" TLV in the reply message instead of the TLV(s) the | |
66 | * reply should contain if the request succeeds. | |
67 | */ | |
0e65967e AS |
68 | |
69 | /* | |
ea714ccd PL |
70 | * Public commands: |
71 | * May be issued by any process. | |
0e65967e | 72 | * Accepted by own node, or by remote node only if remote management enabled. |
ea714ccd | 73 | */ |
0e65967e AS |
74 | |
75 | #define TIPC_CMD_NOOP 0x0000 /* tx none, rx none */ | |
ea714ccd PL |
76 | #define TIPC_CMD_GET_NODES 0x0001 /* tx net_addr, rx node_info(s) */ |
77 | #define TIPC_CMD_GET_MEDIA_NAMES 0x0002 /* tx none, rx media_name(s) */ | |
78 | #define TIPC_CMD_GET_BEARER_NAMES 0x0003 /* tx none, rx bearer_name(s) */ | |
79 | #define TIPC_CMD_GET_LINKS 0x0004 /* tx net_addr, rx link_info(s) */ | |
80 | #define TIPC_CMD_SHOW_NAME_TABLE 0x0005 /* tx name_tbl_query, rx ultra_string */ | |
81 | #define TIPC_CMD_SHOW_PORTS 0x0006 /* tx none, rx ultra_string */ | |
82 | #define TIPC_CMD_SHOW_LINK_STATS 0x000B /* tx link_name, rx ultra_string */ | |
107e7be6 | 83 | #define TIPC_CMD_SHOW_STATS 0x000F /* tx unsigned, rx ultra_string */ |
ea714ccd | 84 | |
0e65967e | 85 | /* |
ea714ccd PL |
86 | * Protected commands: |
87 | * May only be issued by "network administration capable" process. | |
88 | * Accepted by own node, or by remote node only if remote management enabled | |
0e65967e | 89 | * and this node is zone manager. |
ea714ccd PL |
90 | */ |
91 | ||
92 | #define TIPC_CMD_GET_REMOTE_MNG 0x4003 /* tx none, rx unsigned */ | |
93 | #define TIPC_CMD_GET_MAX_PORTS 0x4004 /* tx none, rx unsigned */ | |
e6a04b1d | 94 | #define TIPC_CMD_GET_MAX_PUBL 0x4005 /* obsoleted */ |
34f256cc | 95 | #define TIPC_CMD_GET_MAX_SUBSCR 0x4006 /* obsoleted */ |
51f98a8d | 96 | #define TIPC_CMD_GET_MAX_ZONES 0x4007 /* obsoleted */ |
8f92df6a | 97 | #define TIPC_CMD_GET_MAX_CLUSTERS 0x4008 /* obsoleted */ |
f831c963 | 98 | #define TIPC_CMD_GET_MAX_NODES 0x4009 /* obsoleted */ |
08c80e9a | 99 | #define TIPC_CMD_GET_MAX_SLAVES 0x400A /* obsoleted */ |
ea714ccd PL |
100 | #define TIPC_CMD_GET_NETID 0x400B /* tx none, rx unsigned */ |
101 | ||
102 | #define TIPC_CMD_ENABLE_BEARER 0x4101 /* tx bearer_config, rx none */ | |
103 | #define TIPC_CMD_DISABLE_BEARER 0x4102 /* tx bearer_name, rx none */ | |
104 | #define TIPC_CMD_SET_LINK_TOL 0x4107 /* tx link_config, rx none */ | |
105 | #define TIPC_CMD_SET_LINK_PRI 0x4108 /* tx link_config, rx none */ | |
106 | #define TIPC_CMD_SET_LINK_WINDOW 0x4109 /* tx link_config, rx none */ | |
869dd466 EH |
107 | #define TIPC_CMD_SET_LOG_SIZE 0x410A /* obsoleted */ |
108 | #define TIPC_CMD_DUMP_LOG 0x410B /* obsoleted */ | |
ea714ccd PL |
109 | #define TIPC_CMD_RESET_LINK_STATS 0x410C /* tx link_name, rx none */ |
110 | ||
0e65967e | 111 | /* |
ea714ccd PL |
112 | * Private commands: |
113 | * May only be issued by "network administration capable" process. | |
0e65967e | 114 | * Accepted by own node only; cannot be used on a remote node. |
ea714ccd PL |
115 | */ |
116 | ||
117 | #define TIPC_CMD_SET_NODE_ADDR 0x8001 /* tx net_addr, rx none */ | |
ea714ccd PL |
118 | #define TIPC_CMD_SET_REMOTE_MNG 0x8003 /* tx unsigned, rx none */ |
119 | #define TIPC_CMD_SET_MAX_PORTS 0x8004 /* tx unsigned, rx none */ | |
e6a04b1d | 120 | #define TIPC_CMD_SET_MAX_PUBL 0x8005 /* obsoleted */ |
34f256cc | 121 | #define TIPC_CMD_SET_MAX_SUBSCR 0x8006 /* obsoleted */ |
51f98a8d | 122 | #define TIPC_CMD_SET_MAX_ZONES 0x8007 /* obsoleted */ |
8f92df6a | 123 | #define TIPC_CMD_SET_MAX_CLUSTERS 0x8008 /* obsoleted */ |
f831c963 | 124 | #define TIPC_CMD_SET_MAX_NODES 0x8009 /* obsoleted */ |
08c80e9a | 125 | #define TIPC_CMD_SET_MAX_SLAVES 0x800A /* obsoleted */ |
ea714ccd PL |
126 | #define TIPC_CMD_SET_NETID 0x800B /* tx unsigned, rx none */ |
127 | ||
59f0c452 AS |
128 | /* |
129 | * Reserved commands: | |
130 | * May not be issued by any process. | |
131 | * Used internally by TIPC. | |
132 | */ | |
133 | ||
134 | #define TIPC_CMD_NOT_NET_ADMIN 0xC001 /* tx none, rx none */ | |
135 | ||
ea714ccd PL |
136 | /* |
137 | * TLV types defined for TIPC | |
138 | */ | |
139 | ||
140 | #define TIPC_TLV_NONE 0 /* no TLV present */ | |
141 | #define TIPC_TLV_VOID 1 /* empty TLV (0 data bytes)*/ | |
142 | #define TIPC_TLV_UNSIGNED 2 /* 32-bit integer */ | |
143 | #define TIPC_TLV_STRING 3 /* char[128] (max) */ | |
144 | #define TIPC_TLV_LARGE_STRING 4 /* char[2048] (max) */ | |
145 | #define TIPC_TLV_ULTRA_STRING 5 /* char[32768] (max) */ | |
146 | ||
147 | #define TIPC_TLV_ERROR_STRING 16 /* char[128] containing "error code" */ | |
0e65967e | 148 | #define TIPC_TLV_NET_ADDR 17 /* 32-bit integer denoting <Z.C.N> */ |
ea714ccd PL |
149 | #define TIPC_TLV_MEDIA_NAME 18 /* char[TIPC_MAX_MEDIA_NAME] */ |
150 | #define TIPC_TLV_BEARER_NAME 19 /* char[TIPC_MAX_BEARER_NAME] */ | |
151 | #define TIPC_TLV_LINK_NAME 20 /* char[TIPC_MAX_LINK_NAME] */ | |
152 | #define TIPC_TLV_NODE_INFO 21 /* struct tipc_node_info */ | |
153 | #define TIPC_TLV_LINK_INFO 22 /* struct tipc_link_info */ | |
0e65967e AS |
154 | #define TIPC_TLV_BEARER_CONFIG 23 /* struct tipc_bearer_config */ |
155 | #define TIPC_TLV_LINK_CONFIG 24 /* struct tipc_link_config */ | |
ea714ccd | 156 | #define TIPC_TLV_NAME_TBL_QUERY 25 /* struct tipc_name_table_query */ |
0e65967e | 157 | #define TIPC_TLV_PORT_REF 26 /* 32-bit port reference */ |
ea714ccd | 158 | |
ea714ccd | 159 | /* |
16cb4b33 | 160 | * Link priority limits (min, default, max, media default) |
ea714ccd PL |
161 | */ |
162 | ||
16cb4b33 PL |
163 | #define TIPC_MIN_LINK_PRI 0 |
164 | #define TIPC_DEF_LINK_PRI 10 | |
165 | #define TIPC_MAX_LINK_PRI 31 | |
166 | #define TIPC_MEDIA_LINK_PRI (TIPC_MAX_LINK_PRI + 1) | |
ea714ccd PL |
167 | |
168 | /* | |
169 | * Link tolerance limits (min, default, max), in ms | |
170 | */ | |
171 | ||
172 | #define TIPC_MIN_LINK_TOL 50 | |
173 | #define TIPC_DEF_LINK_TOL 1500 | |
174 | #define TIPC_MAX_LINK_TOL 30000 | |
175 | ||
5413b4c6 AS |
176 | #if (TIPC_MIN_LINK_TOL < 16) |
177 | #error "TIPC_MIN_LINK_TOL is too small (abort limit may be NaN)" | |
178 | #endif | |
179 | ||
ea714ccd PL |
180 | /* |
181 | * Link window limits (min, default, max), in packets | |
182 | */ | |
183 | ||
184 | #define TIPC_MIN_LINK_WIN 16 | |
185 | #define TIPC_DEF_LINK_WIN 50 | |
a6eacef7 | 186 | #define TIPC_MAX_LINK_WIN 8191 |
ea714ccd | 187 | |
a4dfa72d GM |
188 | /* |
189 | * Default MTU for UDP media | |
190 | */ | |
191 | ||
192 | #define TIPC_DEF_LINK_UDP_MTU 14000 | |
ea714ccd PL |
193 | |
194 | struct tipc_node_info { | |
3e6c8cd5 AV |
195 | __be32 addr; /* network address of node */ |
196 | __be32 up; /* 0=down, 1= up */ | |
ea714ccd PL |
197 | }; |
198 | ||
199 | struct tipc_link_info { | |
3e6c8cd5 AV |
200 | __be32 dest; /* network address of peer node */ |
201 | __be32 up; /* 0=down, 1=up */ | |
ea714ccd PL |
202 | char str[TIPC_MAX_LINK_NAME]; /* link name */ |
203 | }; | |
204 | ||
205 | struct tipc_bearer_config { | |
3e6c8cd5 | 206 | __be32 priority; /* Range [1,31]. Override per link */ |
50d3e639 | 207 | __be32 disc_domain; /* <Z.C.N> describing desired nodes */ |
ea714ccd PL |
208 | char name[TIPC_MAX_BEARER_NAME]; |
209 | }; | |
210 | ||
211 | struct tipc_link_config { | |
3e6c8cd5 | 212 | __be32 value; |
ea714ccd PL |
213 | char name[TIPC_MAX_LINK_NAME]; |
214 | }; | |
215 | ||
216 | #define TIPC_NTQ_ALLTYPES 0x80000000 | |
217 | ||
218 | struct tipc_name_table_query { | |
3e6c8cd5 AV |
219 | __be32 depth; /* 1:type, 2:+name info, 3:+port info, 4+:+debug info */ |
220 | __be32 type; /* {t,l,u} info ignored if high bit of "depth" is set */ | |
221 | __be32 lowbound; /* (i.e. displays all entries of name table) */ | |
222 | __be32 upbound; | |
ea714ccd PL |
223 | }; |
224 | ||
225 | /* | |
0e65967e | 226 | * The error string TLV is a null-terminated string describing the cause |
ea714ccd PL |
227 | * of the request failure. To simplify error processing (and to save space) |
228 | * the first character of the string can be a special error code character | |
229 | * (lying by the range 0x80 to 0xFF) which represents a pre-defined reason. | |
230 | */ | |
231 | ||
232 | #define TIPC_CFG_TLV_ERROR "\x80" /* request contains incorrect TLV(s) */ | |
233 | #define TIPC_CFG_NOT_NET_ADMIN "\x81" /* must be network administrator */ | |
234 | #define TIPC_CFG_NOT_ZONE_MSTR "\x82" /* must be zone master */ | |
235 | #define TIPC_CFG_NO_REMOTE "\x83" /* remote management not enabled */ | |
236 | #define TIPC_CFG_NOT_SUPPORTED "\x84" /* request is not supported by TIPC */ | |
237 | #define TIPC_CFG_INVALID_VALUE "\x85" /* request has invalid argument value */ | |
238 | ||
ea714ccd PL |
239 | /* |
240 | * A TLV consists of a descriptor, followed by the TLV value. | |
0e65967e | 241 | * TLV descriptor fields are stored in network byte order; |
ea714ccd PL |
242 | * TLV values must also be stored in network byte order (where applicable). |
243 | * TLV descriptors must be aligned to addresses which are multiple of 4, | |
244 | * so up to 3 bytes of padding may exist at the end of the TLV value area. | |
245 | * There must not be any padding between the TLV descriptor and its value. | |
246 | */ | |
247 | ||
248 | struct tlv_desc { | |
3e6c8cd5 AV |
249 | __be16 tlv_len; /* TLV length (descriptor + value) */ |
250 | __be16 tlv_type; /* TLV identifier */ | |
ea714ccd PL |
251 | }; |
252 | ||
253 | #define TLV_ALIGNTO 4 | |
254 | ||
255 | #define TLV_ALIGN(datalen) (((datalen)+(TLV_ALIGNTO-1)) & ~(TLV_ALIGNTO-1)) | |
256 | #define TLV_LENGTH(datalen) (sizeof(struct tlv_desc) + (datalen)) | |
257 | #define TLV_SPACE(datalen) (TLV_ALIGN(TLV_LENGTH(datalen))) | |
258 | #define TLV_DATA(tlv) ((void *)((char *)(tlv) + TLV_LENGTH(0))) | |
259 | ||
260 | static inline int TLV_OK(const void *tlv, __u16 space) | |
261 | { | |
262 | /* | |
263 | * Would also like to check that "tlv" is a multiple of 4, | |
264 | * but don't know how to do this in a portable way. | |
265 | * - Tried doing (!(tlv & (TLV_ALIGNTO-1))), but GCC compiler | |
266 | * won't allow binary "&" with a pointer. | |
267 | * - Tried casting "tlv" to integer type, but causes warning about size | |
268 | * mismatch when pointer is bigger than chosen type (int, long, ...). | |
269 | */ | |
270 | ||
271 | return (space >= TLV_SPACE(0)) && | |
272 | (ntohs(((struct tlv_desc *)tlv)->tlv_len) <= space); | |
273 | } | |
274 | ||
275 | static inline int TLV_CHECK(const void *tlv, __u16 space, __u16 exp_type) | |
276 | { | |
0e65967e | 277 | return TLV_OK(tlv, space) && |
ea714ccd PL |
278 | (ntohs(((struct tlv_desc *)tlv)->tlv_type) == exp_type); |
279 | } | |
280 | ||
d0796d1e RA |
281 | static inline int TLV_GET_LEN(struct tlv_desc *tlv) |
282 | { | |
283 | return ntohs(tlv->tlv_len); | |
284 | } | |
285 | ||
f2b3b2d4 RA |
286 | static inline void TLV_SET_LEN(struct tlv_desc *tlv, __u16 len) |
287 | { | |
288 | tlv->tlv_len = htons(len); | |
289 | } | |
290 | ||
9ab15465 RA |
291 | static inline int TLV_CHECK_TYPE(struct tlv_desc *tlv, __u16 type) |
292 | { | |
293 | return (ntohs(tlv->tlv_type) == type); | |
294 | } | |
295 | ||
f2b3b2d4 RA |
296 | static inline void TLV_SET_TYPE(struct tlv_desc *tlv, __u16 type) |
297 | { | |
298 | tlv->tlv_type = htons(type); | |
299 | } | |
300 | ||
ea714ccd PL |
301 | static inline int TLV_SET(void *tlv, __u16 type, void *data, __u16 len) |
302 | { | |
303 | struct tlv_desc *tlv_ptr; | |
304 | int tlv_len; | |
305 | ||
306 | tlv_len = TLV_LENGTH(len); | |
307 | tlv_ptr = (struct tlv_desc *)tlv; | |
308 | tlv_ptr->tlv_type = htons(type); | |
309 | tlv_ptr->tlv_len = htons(tlv_len); | |
9bbcdb07 CP |
310 | if (len && data) { |
311 | memcpy(TLV_DATA(tlv_ptr), data, len); | |
d6547f2a | 312 | memset((char *)TLV_DATA(tlv_ptr) + len, 0, TLV_SPACE(len) - tlv_len); |
9bbcdb07 | 313 | } |
ea714ccd PL |
314 | return TLV_SPACE(len); |
315 | } | |
316 | ||
317 | /* | |
0e65967e | 318 | * A TLV list descriptor simplifies processing of messages |
ea714ccd PL |
319 | * containing multiple TLVs. |
320 | */ | |
321 | ||
322 | struct tlv_list_desc { | |
323 | struct tlv_desc *tlv_ptr; /* ptr to current TLV */ | |
324 | __u32 tlv_space; /* # bytes from curr TLV to list end */ | |
325 | }; | |
326 | ||
0e65967e | 327 | static inline void TLV_LIST_INIT(struct tlv_list_desc *list, |
ea714ccd PL |
328 | void *data, __u32 space) |
329 | { | |
330 | list->tlv_ptr = (struct tlv_desc *)data; | |
331 | list->tlv_space = space; | |
332 | } | |
0e65967e | 333 | |
ea714ccd | 334 | static inline int TLV_LIST_EMPTY(struct tlv_list_desc *list) |
0e65967e | 335 | { |
ea714ccd PL |
336 | return (list->tlv_space == 0); |
337 | } | |
338 | ||
339 | static inline int TLV_LIST_CHECK(struct tlv_list_desc *list, __u16 exp_type) | |
340 | { | |
341 | return TLV_CHECK(list->tlv_ptr, list->tlv_space, exp_type); | |
342 | } | |
343 | ||
344 | static inline void *TLV_LIST_DATA(struct tlv_list_desc *list) | |
345 | { | |
346 | return TLV_DATA(list->tlv_ptr); | |
347 | } | |
348 | ||
349 | static inline void TLV_LIST_STEP(struct tlv_list_desc *list) | |
350 | { | |
351 | __u16 tlv_space = TLV_ALIGN(ntohs(list->tlv_ptr->tlv_len)); | |
352 | ||
0e65967e | 353 | list->tlv_ptr = (struct tlv_desc *)((char *)list->tlv_ptr + tlv_space); |
ea714ccd PL |
354 | list->tlv_space -= tlv_space; |
355 | } | |
356 | ||
357 | /* | |
358 | * Configuration messages exchanged via NETLINK_GENERIC use the following | |
359 | * family id, name, version and command. | |
360 | */ | |
361 | #define TIPC_GENL_NAME "TIPC" | |
362 | #define TIPC_GENL_VERSION 0x1 | |
363 | #define TIPC_GENL_CMD 0x1 | |
364 | ||
365 | /* | |
366 | * TIPC specific header used in NETLINK_GENERIC requests. | |
367 | */ | |
368 | struct tipc_genlmsghdr { | |
369 | __u32 dest; /* Destination address */ | |
370 | __u16 cmd; /* Command */ | |
371 | __u16 reserved; /* Unused */ | |
372 | }; | |
373 | ||
374 | #define TIPC_GENL_HDRLEN NLMSG_ALIGN(sizeof(struct tipc_genlmsghdr)) | |
375 | ||
376 | /* | |
0e65967e AS |
377 | * Configuration messages exchanged via TIPC sockets use the TIPC configuration |
378 | * message header, which is defined below. This structure is analogous | |
379 | * to the Netlink message header, but fields are stored in network byte order | |
380 | * and no padding is permitted between the header and the message data | |
ea714ccd PL |
381 | * that follows. |
382 | */ | |
383 | ||
0e65967e | 384 | struct tipc_cfg_msg_hdr { |
3e6c8cd5 AV |
385 | __be32 tcm_len; /* Message length (including header) */ |
386 | __be16 tcm_type; /* Command type */ | |
387 | __be16 tcm_flags; /* Additional flags */ | |
ea714ccd PL |
388 | char tcm_reserved[8]; /* Unused */ |
389 | }; | |
390 | ||
391 | #define TCM_F_REQUEST 0x1 /* Flag: Request message */ | |
392 | #define TCM_F_MORE 0x2 /* Flag: Message to be continued */ | |
393 | ||
394 | #define TCM_ALIGN(datalen) (((datalen)+3) & ~3) | |
395 | #define TCM_LENGTH(datalen) (sizeof(struct tipc_cfg_msg_hdr) + datalen) | |
396 | #define TCM_SPACE(datalen) (TCM_ALIGN(TCM_LENGTH(datalen))) | |
397 | #define TCM_DATA(tcm_hdr) ((void *)((char *)(tcm_hdr) + TCM_LENGTH(0))) | |
398 | ||
399 | static inline int TCM_SET(void *msg, __u16 cmd, __u16 flags, | |
400 | void *data, __u16 data_len) | |
401 | { | |
402 | struct tipc_cfg_msg_hdr *tcm_hdr; | |
403 | int msg_len; | |
404 | ||
405 | msg_len = TCM_LENGTH(data_len); | |
406 | tcm_hdr = (struct tipc_cfg_msg_hdr *)msg; | |
407 | tcm_hdr->tcm_len = htonl(msg_len); | |
408 | tcm_hdr->tcm_type = htons(cmd); | |
409 | tcm_hdr->tcm_flags = htons(flags); | |
9bbcdb07 | 410 | if (data_len && data) { |
ea714ccd | 411 | memcpy(TCM_DATA(msg), data, data_len); |
d6547f2a | 412 | memset((char *)TCM_DATA(msg) + data_len, 0, TCM_SPACE(data_len) - msg_len); |
9bbcdb07 | 413 | } |
ea714ccd PL |
414 | return TCM_SPACE(data_len); |
415 | } | |
416 | ||
417 | #endif |