Commit | Line | Data |
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bfb3e5dd RA |
1 | /* |
2 | * Copyright (c) 2014, Ericsson AB | |
3 | * All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms, with or without | |
6 | * modification, are permitted provided that the following conditions are met: | |
7 | * | |
8 | * 1. Redistributions of source code must retain the above copyright | |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * 2. Redistributions in binary form must reproduce the above copyright | |
11 | * notice, this list of conditions and the following disclaimer in the | |
12 | * documentation and/or other materials provided with the distribution. | |
13 | * 3. Neither the names of the copyright holders nor the names of its | |
14 | * contributors may be used to endorse or promote products derived from | |
15 | * this software without specific prior written permission. | |
16 | * | |
17 | * Alternatively, this software may be distributed under the terms of the | |
18 | * GNU General Public License ("GPL") version 2 as published by the Free | |
19 | * Software Foundation. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
22 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | |
25 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
26 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
27 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
28 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
29 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
30 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
31 | * POSSIBILITY OF SUCH DAMAGE. | |
32 | */ | |
33 | ||
34 | #include "core.h" | |
d0796d1e | 35 | #include "bearer.h" |
f2b3b2d4 | 36 | #include "link.h" |
44a8ae94 | 37 | #include "name_table.h" |
487d2a3a | 38 | #include "socket.h" |
4b28cb58 | 39 | #include "node.h" |
964f9501 | 40 | #include "net.h" |
bfb3e5dd | 41 | #include <net/genetlink.h> |
f1db99c0 | 42 | #include <linux/string_helpers.h> |
bfb3e5dd RA |
43 | #include <linux/tipc_config.h> |
44 | ||
d0796d1e RA |
45 | /* The legacy API had an artificial message length limit called |
46 | * ULTRA_STRING_MAX_LEN. | |
47 | */ | |
48 | #define ULTRA_STRING_MAX_LEN 32768 | |
49 | ||
50 | #define TIPC_SKB_MAX TLV_SPACE(ULTRA_STRING_MAX_LEN) | |
51 | ||
52 | #define REPLY_TRUNCATED "<truncated>\n" | |
53 | ||
54 | struct tipc_nl_compat_msg { | |
55 | u16 cmd; | |
f2b3b2d4 | 56 | int rep_type; |
d0796d1e | 57 | int rep_size; |
9ab15465 | 58 | int req_type; |
4da5f001 | 59 | int req_size; |
c3d6fb85 | 60 | struct net *net; |
d0796d1e RA |
61 | struct sk_buff *rep; |
62 | struct tlv_desc *req; | |
63 | struct sock *dst_sk; | |
64 | }; | |
65 | ||
66 | struct tipc_nl_compat_cmd_dump { | |
44a8ae94 | 67 | int (*header)(struct tipc_nl_compat_msg *); |
d0796d1e RA |
68 | int (*dumpit)(struct sk_buff *, struct netlink_callback *); |
69 | int (*format)(struct tipc_nl_compat_msg *msg, struct nlattr **attrs); | |
70 | }; | |
71 | ||
9ab15465 RA |
72 | struct tipc_nl_compat_cmd_doit { |
73 | int (*doit)(struct sk_buff *skb, struct genl_info *info); | |
c3d6fb85 RA |
74 | int (*transcode)(struct tipc_nl_compat_cmd_doit *cmd, |
75 | struct sk_buff *skb, struct tipc_nl_compat_msg *msg); | |
9ab15465 RA |
76 | }; |
77 | ||
d0796d1e RA |
78 | static int tipc_skb_tailroom(struct sk_buff *skb) |
79 | { | |
80 | int tailroom; | |
81 | int limit; | |
82 | ||
83 | tailroom = skb_tailroom(skb); | |
84 | limit = TIPC_SKB_MAX - skb->len; | |
85 | ||
86 | if (tailroom < limit) | |
87 | return tailroom; | |
88 | ||
89 | return limit; | |
90 | } | |
91 | ||
8b66fee7 YX |
92 | static inline int TLV_GET_DATA_LEN(struct tlv_desc *tlv) |
93 | { | |
94 | return TLV_GET_LEN(tlv) - TLV_SPACE(0); | |
95 | } | |
96 | ||
d0796d1e RA |
97 | static int tipc_add_tlv(struct sk_buff *skb, u16 type, void *data, u16 len) |
98 | { | |
99 | struct tlv_desc *tlv = (struct tlv_desc *)skb_tail_pointer(skb); | |
100 | ||
101 | if (tipc_skb_tailroom(skb) < TLV_SPACE(len)) | |
102 | return -EMSGSIZE; | |
103 | ||
104 | skb_put(skb, TLV_SPACE(len)); | |
105 | tlv->tlv_type = htons(type); | |
106 | tlv->tlv_len = htons(TLV_LENGTH(len)); | |
107 | if (len && data) | |
108 | memcpy(TLV_DATA(tlv), data, len); | |
109 | ||
110 | return 0; | |
111 | } | |
112 | ||
f2b3b2d4 RA |
113 | static void tipc_tlv_init(struct sk_buff *skb, u16 type) |
114 | { | |
115 | struct tlv_desc *tlv = (struct tlv_desc *)skb->data; | |
116 | ||
117 | TLV_SET_LEN(tlv, 0); | |
118 | TLV_SET_TYPE(tlv, type); | |
119 | skb_put(skb, sizeof(struct tlv_desc)); | |
120 | } | |
121 | ||
79b1119b AL |
122 | static __printf(2, 3) int tipc_tlv_sprintf(struct sk_buff *skb, |
123 | const char *fmt, ...) | |
f2b3b2d4 RA |
124 | { |
125 | int n; | |
126 | u16 len; | |
127 | u32 rem; | |
128 | char *buf; | |
129 | struct tlv_desc *tlv; | |
130 | va_list args; | |
131 | ||
132 | rem = tipc_skb_tailroom(skb); | |
133 | ||
134 | tlv = (struct tlv_desc *)skb->data; | |
135 | len = TLV_GET_LEN(tlv); | |
136 | buf = TLV_DATA(tlv) + len; | |
137 | ||
138 | va_start(args, fmt); | |
139 | n = vscnprintf(buf, rem, fmt, args); | |
140 | va_end(args); | |
141 | ||
142 | TLV_SET_LEN(tlv, n + len); | |
143 | skb_put(skb, n); | |
144 | ||
145 | return n; | |
146 | } | |
147 | ||
d0796d1e RA |
148 | static struct sk_buff *tipc_tlv_alloc(int size) |
149 | { | |
150 | int hdr_len; | |
151 | struct sk_buff *buf; | |
152 | ||
153 | size = TLV_SPACE(size); | |
154 | hdr_len = nlmsg_total_size(GENL_HDRLEN + TIPC_GENL_HDRLEN); | |
155 | ||
156 | buf = alloc_skb(hdr_len + size, GFP_KERNEL); | |
157 | if (!buf) | |
158 | return NULL; | |
159 | ||
160 | skb_reserve(buf, hdr_len); | |
161 | ||
162 | return buf; | |
163 | } | |
164 | ||
165 | static struct sk_buff *tipc_get_err_tlv(char *str) | |
166 | { | |
167 | int str_len = strlen(str) + 1; | |
168 | struct sk_buff *buf; | |
169 | ||
170 | buf = tipc_tlv_alloc(TLV_SPACE(str_len)); | |
171 | if (buf) | |
172 | tipc_add_tlv(buf, TIPC_TLV_ERROR_STRING, str, str_len); | |
173 | ||
174 | return buf; | |
175 | } | |
176 | ||
177 | static int __tipc_nl_compat_dumpit(struct tipc_nl_compat_cmd_dump *cmd, | |
178 | struct tipc_nl_compat_msg *msg, | |
179 | struct sk_buff *arg) | |
180 | { | |
6ea67769 | 181 | struct genl_dumpit_info info; |
d0796d1e RA |
182 | int len = 0; |
183 | int err; | |
184 | struct sk_buff *buf; | |
185 | struct nlmsghdr *nlmsg; | |
186 | struct netlink_callback cb; | |
c6c08614 | 187 | struct nlattr **attrbuf; |
d0796d1e RA |
188 | |
189 | memset(&cb, 0, sizeof(cb)); | |
190 | cb.nlh = (struct nlmsghdr *)arg->data; | |
191 | cb.skb = arg; | |
6ea67769 | 192 | cb.data = &info; |
d0796d1e RA |
193 | |
194 | buf = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
195 | if (!buf) | |
196 | return -ENOMEM; | |
197 | ||
198 | buf->sk = msg->dst_sk; | |
12a78b02 CW |
199 | if (__tipc_dump_start(&cb, msg->net)) { |
200 | kfree_skb(buf); | |
201 | return -ENOMEM; | |
202 | } | |
d0796d1e | 203 | |
a7869e5f YX |
204 | attrbuf = kcalloc(tipc_genl_family.maxattr + 1, |
205 | sizeof(struct nlattr *), GFP_KERNEL); | |
c6c08614 JP |
206 | if (!attrbuf) { |
207 | err = -ENOMEM; | |
208 | goto err_out; | |
209 | } | |
210 | ||
7288dd2f | 211 | info.info.attrs = attrbuf; |
6ea67769 | 212 | |
c32c928d HL |
213 | if (nlmsg_len(cb.nlh) > 0) { |
214 | err = nlmsg_parse_deprecated(cb.nlh, GENL_HDRLEN, attrbuf, | |
215 | tipc_genl_family.maxattr, | |
216 | tipc_genl_family.policy, NULL); | |
217 | if (err) | |
218 | goto err_out; | |
219 | } | |
d0796d1e RA |
220 | do { |
221 | int rem; | |
222 | ||
223 | len = (*cmd->dumpit)(buf, &cb); | |
224 | ||
225 | nlmsg_for_each_msg(nlmsg, nlmsg_hdr(buf), len, rem) { | |
c6c08614 JP |
226 | err = nlmsg_parse_deprecated(nlmsg, GENL_HDRLEN, |
227 | attrbuf, | |
228 | tipc_genl_family.maxattr, | |
229 | tipc_genl_family.policy, | |
230 | NULL); | |
d0796d1e RA |
231 | if (err) |
232 | goto err_out; | |
233 | ||
c6c08614 | 234 | err = (*cmd->format)(msg, attrbuf); |
d0796d1e RA |
235 | if (err) |
236 | goto err_out; | |
237 | ||
238 | if (tipc_skb_tailroom(msg->rep) <= 1) { | |
239 | err = -EMSGSIZE; | |
240 | goto err_out; | |
241 | } | |
242 | } | |
243 | ||
244 | skb_reset_tail_pointer(buf); | |
245 | buf->len = 0; | |
246 | ||
247 | } while (len); | |
248 | ||
249 | err = 0; | |
250 | ||
251 | err_out: | |
c6c08614 | 252 | kfree(attrbuf); |
8f5c5fcf | 253 | tipc_dump_done(&cb); |
d0796d1e RA |
254 | kfree_skb(buf); |
255 | ||
256 | if (err == -EMSGSIZE) { | |
257 | /* The legacy API only considered messages filling | |
258 | * "ULTRA_STRING_MAX_LEN" to be truncated. | |
259 | */ | |
260 | if ((TIPC_SKB_MAX - msg->rep->len) <= 1) { | |
261 | char *tail = skb_tail_pointer(msg->rep); | |
262 | ||
263 | if (*tail != '\0') | |
264 | sprintf(tail - sizeof(REPLY_TRUNCATED) - 1, | |
265 | REPLY_TRUNCATED); | |
266 | } | |
267 | ||
268 | return 0; | |
269 | } | |
270 | ||
271 | return err; | |
272 | } | |
273 | ||
274 | static int tipc_nl_compat_dumpit(struct tipc_nl_compat_cmd_dump *cmd, | |
275 | struct tipc_nl_compat_msg *msg) | |
276 | { | |
47733f9d | 277 | struct nlmsghdr *nlh; |
d0796d1e | 278 | struct sk_buff *arg; |
47733f9d | 279 | int err; |
d0796d1e | 280 | |
4da5f001 TK |
281 | if (msg->req_type && (!msg->req_size || |
282 | !TLV_CHECK_TYPE(msg->req, msg->req_type))) | |
f2b3b2d4 RA |
283 | return -EINVAL; |
284 | ||
d0796d1e RA |
285 | msg->rep = tipc_tlv_alloc(msg->rep_size); |
286 | if (!msg->rep) | |
287 | return -ENOMEM; | |
288 | ||
f2b3b2d4 RA |
289 | if (msg->rep_type) |
290 | tipc_tlv_init(msg->rep, msg->rep_type); | |
291 | ||
2ac695d1 XL |
292 | if (cmd->header) { |
293 | err = (*cmd->header)(msg); | |
294 | if (err) { | |
295 | kfree_skb(msg->rep); | |
296 | msg->rep = NULL; | |
297 | return err; | |
298 | } | |
299 | } | |
44a8ae94 | 300 | |
d0796d1e RA |
301 | arg = nlmsg_new(0, GFP_KERNEL); |
302 | if (!arg) { | |
303 | kfree_skb(msg->rep); | |
5bfd37b4 | 304 | msg->rep = NULL; |
d0796d1e RA |
305 | return -ENOMEM; |
306 | } | |
307 | ||
47733f9d CW |
308 | nlh = nlmsg_put(arg, 0, 0, tipc_genl_family.id, 0, NLM_F_MULTI); |
309 | if (!nlh) { | |
310 | kfree_skb(arg); | |
311 | kfree_skb(msg->rep); | |
312 | msg->rep = NULL; | |
313 | return -EMSGSIZE; | |
314 | } | |
315 | nlmsg_end(arg, nlh); | |
316 | ||
d0796d1e | 317 | err = __tipc_nl_compat_dumpit(cmd, msg, arg); |
5bfd37b4 | 318 | if (err) { |
d0796d1e | 319 | kfree_skb(msg->rep); |
5bfd37b4 ED |
320 | msg->rep = NULL; |
321 | } | |
d0796d1e RA |
322 | kfree_skb(arg); |
323 | ||
324 | return err; | |
325 | } | |
326 | ||
9ab15465 RA |
327 | static int __tipc_nl_compat_doit(struct tipc_nl_compat_cmd_doit *cmd, |
328 | struct tipc_nl_compat_msg *msg) | |
329 | { | |
330 | int err; | |
331 | struct sk_buff *doit_buf; | |
332 | struct sk_buff *trans_buf; | |
333 | struct nlattr **attrbuf; | |
334 | struct genl_info info; | |
335 | ||
336 | trans_buf = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL); | |
337 | if (!trans_buf) | |
338 | return -ENOMEM; | |
339 | ||
6da2ec56 KC |
340 | attrbuf = kmalloc_array(tipc_genl_family.maxattr + 1, |
341 | sizeof(struct nlattr *), | |
342 | GFP_KERNEL); | |
9ab15465 RA |
343 | if (!attrbuf) { |
344 | err = -ENOMEM; | |
345 | goto trans_out; | |
346 | } | |
347 | ||
9ab15465 RA |
348 | doit_buf = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL); |
349 | if (!doit_buf) { | |
350 | err = -ENOMEM; | |
e5d1a1ee | 351 | goto attrbuf_out; |
9ab15465 RA |
352 | } |
353 | ||
9ab15465 RA |
354 | memset(&info, 0, sizeof(info)); |
355 | info.attrs = attrbuf; | |
356 | ||
ed4ffdfe | 357 | rtnl_lock(); |
e5d1a1ee YX |
358 | err = (*cmd->transcode)(cmd, trans_buf, msg); |
359 | if (err) | |
360 | goto doit_out; | |
361 | ||
8cb08174 JB |
362 | err = nla_parse_deprecated(attrbuf, tipc_genl_family.maxattr, |
363 | (const struct nlattr *)trans_buf->data, | |
364 | trans_buf->len, NULL, NULL); | |
e5d1a1ee YX |
365 | if (err) |
366 | goto doit_out; | |
367 | ||
368 | doit_buf->sk = msg->dst_sk; | |
369 | ||
9ab15465 | 370 | err = (*cmd->doit)(doit_buf, &info); |
e5d1a1ee | 371 | doit_out: |
ed4ffdfe | 372 | rtnl_unlock(); |
9ab15465 RA |
373 | |
374 | kfree_skb(doit_buf); | |
e5d1a1ee | 375 | attrbuf_out: |
9ab15465 RA |
376 | kfree(attrbuf); |
377 | trans_out: | |
378 | kfree_skb(trans_buf); | |
379 | ||
380 | return err; | |
381 | } | |
382 | ||
383 | static int tipc_nl_compat_doit(struct tipc_nl_compat_cmd_doit *cmd, | |
384 | struct tipc_nl_compat_msg *msg) | |
385 | { | |
386 | int err; | |
387 | ||
4da5f001 TK |
388 | if (msg->req_type && (!msg->req_size || |
389 | !TLV_CHECK_TYPE(msg->req, msg->req_type))) | |
9ab15465 RA |
390 | return -EINVAL; |
391 | ||
392 | err = __tipc_nl_compat_doit(cmd, msg); | |
393 | if (err) | |
394 | return err; | |
395 | ||
396 | /* The legacy API considered an empty message a success message */ | |
397 | msg->rep = tipc_tlv_alloc(0); | |
398 | if (!msg->rep) | |
399 | return -ENOMEM; | |
400 | ||
401 | return 0; | |
402 | } | |
403 | ||
d0796d1e RA |
404 | static int tipc_nl_compat_bearer_dump(struct tipc_nl_compat_msg *msg, |
405 | struct nlattr **attrs) | |
406 | { | |
407 | struct nlattr *bearer[TIPC_NLA_BEARER_MAX + 1]; | |
297f7d2c BD |
408 | int err; |
409 | ||
410 | if (!attrs[TIPC_NLA_BEARER]) | |
411 | return -EINVAL; | |
d0796d1e | 412 | |
8cb08174 JB |
413 | err = nla_parse_nested_deprecated(bearer, TIPC_NLA_BEARER_MAX, |
414 | attrs[TIPC_NLA_BEARER], NULL, NULL); | |
297f7d2c BD |
415 | if (err) |
416 | return err; | |
d0796d1e RA |
417 | |
418 | return tipc_add_tlv(msg->rep, TIPC_TLV_BEARER_NAME, | |
419 | nla_data(bearer[TIPC_NLA_BEARER_NAME]), | |
420 | nla_len(bearer[TIPC_NLA_BEARER_NAME])); | |
421 | } | |
422 | ||
c3d6fb85 RA |
423 | static int tipc_nl_compat_bearer_enable(struct tipc_nl_compat_cmd_doit *cmd, |
424 | struct sk_buff *skb, | |
9ab15465 RA |
425 | struct tipc_nl_compat_msg *msg) |
426 | { | |
427 | struct nlattr *prop; | |
428 | struct nlattr *bearer; | |
429 | struct tipc_bearer_config *b; | |
0762216c | 430 | int len; |
9ab15465 RA |
431 | |
432 | b = (struct tipc_bearer_config *)TLV_DATA(msg->req); | |
433 | ||
ae0be8de | 434 | bearer = nla_nest_start_noflag(skb, TIPC_NLA_BEARER); |
9ab15465 RA |
435 | if (!bearer) |
436 | return -EMSGSIZE; | |
437 | ||
6f07e5f0 XL |
438 | len = TLV_GET_DATA_LEN(msg->req); |
439 | len -= offsetof(struct tipc_bearer_config, name); | |
440 | if (len <= 0) | |
441 | return -EINVAL; | |
442 | ||
443 | len = min_t(int, len, TIPC_MAX_BEARER_NAME); | |
f1db99c0 | 444 | if (!string_is_terminated(b->name, len)) |
0762216c YX |
445 | return -EINVAL; |
446 | ||
9ab15465 RA |
447 | if (nla_put_string(skb, TIPC_NLA_BEARER_NAME, b->name)) |
448 | return -EMSGSIZE; | |
449 | ||
450 | if (nla_put_u32(skb, TIPC_NLA_BEARER_DOMAIN, ntohl(b->disc_domain))) | |
451 | return -EMSGSIZE; | |
452 | ||
453 | if (ntohl(b->priority) <= TIPC_MAX_LINK_PRI) { | |
ae0be8de | 454 | prop = nla_nest_start_noflag(skb, TIPC_NLA_BEARER_PROP); |
9ab15465 RA |
455 | if (!prop) |
456 | return -EMSGSIZE; | |
457 | if (nla_put_u32(skb, TIPC_NLA_PROP_PRIO, ntohl(b->priority))) | |
458 | return -EMSGSIZE; | |
459 | nla_nest_end(skb, prop); | |
460 | } | |
461 | nla_nest_end(skb, bearer); | |
462 | ||
463 | return 0; | |
464 | } | |
465 | ||
c3d6fb85 RA |
466 | static int tipc_nl_compat_bearer_disable(struct tipc_nl_compat_cmd_doit *cmd, |
467 | struct sk_buff *skb, | |
9ab15465 RA |
468 | struct tipc_nl_compat_msg *msg) |
469 | { | |
470 | char *name; | |
471 | struct nlattr *bearer; | |
0762216c | 472 | int len; |
9ab15465 RA |
473 | |
474 | name = (char *)TLV_DATA(msg->req); | |
475 | ||
ae0be8de | 476 | bearer = nla_nest_start_noflag(skb, TIPC_NLA_BEARER); |
9ab15465 RA |
477 | if (!bearer) |
478 | return -EMSGSIZE; | |
479 | ||
4f07b80c XL |
480 | len = TLV_GET_DATA_LEN(msg->req); |
481 | if (len <= 0) | |
482 | return -EINVAL; | |
483 | ||
484 | len = min_t(int, len, TIPC_MAX_BEARER_NAME); | |
f1db99c0 | 485 | if (!string_is_terminated(name, len)) |
0762216c YX |
486 | return -EINVAL; |
487 | ||
9ab15465 RA |
488 | if (nla_put_string(skb, TIPC_NLA_BEARER_NAME, name)) |
489 | return -EMSGSIZE; | |
490 | ||
491 | nla_nest_end(skb, bearer); | |
492 | ||
493 | return 0; | |
494 | } | |
495 | ||
f2b3b2d4 RA |
496 | static inline u32 perc(u32 count, u32 total) |
497 | { | |
498 | return (count * 100 + (total / 2)) / total; | |
499 | } | |
500 | ||
501 | static void __fill_bc_link_stat(struct tipc_nl_compat_msg *msg, | |
502 | struct nlattr *prop[], struct nlattr *stats[]) | |
503 | { | |
504 | tipc_tlv_sprintf(msg->rep, " Window:%u packets\n", | |
505 | nla_get_u32(prop[TIPC_NLA_PROP_WIN])); | |
506 | ||
507 | tipc_tlv_sprintf(msg->rep, | |
508 | " RX packets:%u fragments:%u/%u bundles:%u/%u\n", | |
509 | nla_get_u32(stats[TIPC_NLA_STATS_RX_INFO]), | |
510 | nla_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTS]), | |
511 | nla_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTED]), | |
512 | nla_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLES]), | |
513 | nla_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLED])); | |
514 | ||
515 | tipc_tlv_sprintf(msg->rep, | |
516 | " TX packets:%u fragments:%u/%u bundles:%u/%u\n", | |
517 | nla_get_u32(stats[TIPC_NLA_STATS_TX_INFO]), | |
518 | nla_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTS]), | |
519 | nla_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTED]), | |
520 | nla_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLES]), | |
521 | nla_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLED])); | |
522 | ||
523 | tipc_tlv_sprintf(msg->rep, " RX naks:%u defs:%u dups:%u\n", | |
524 | nla_get_u32(stats[TIPC_NLA_STATS_RX_NACKS]), | |
525 | nla_get_u32(stats[TIPC_NLA_STATS_RX_DEFERRED]), | |
526 | nla_get_u32(stats[TIPC_NLA_STATS_DUPLICATES])); | |
527 | ||
528 | tipc_tlv_sprintf(msg->rep, " TX naks:%u acks:%u dups:%u\n", | |
529 | nla_get_u32(stats[TIPC_NLA_STATS_TX_NACKS]), | |
530 | nla_get_u32(stats[TIPC_NLA_STATS_TX_ACKS]), | |
531 | nla_get_u32(stats[TIPC_NLA_STATS_RETRANSMITTED])); | |
532 | ||
533 | tipc_tlv_sprintf(msg->rep, | |
534 | " Congestion link:%u Send queue max:%u avg:%u", | |
535 | nla_get_u32(stats[TIPC_NLA_STATS_LINK_CONGS]), | |
536 | nla_get_u32(stats[TIPC_NLA_STATS_MAX_QUEUE]), | |
537 | nla_get_u32(stats[TIPC_NLA_STATS_AVG_QUEUE])); | |
538 | } | |
539 | ||
540 | static int tipc_nl_compat_link_stat_dump(struct tipc_nl_compat_msg *msg, | |
541 | struct nlattr **attrs) | |
542 | { | |
543 | char *name; | |
544 | struct nlattr *link[TIPC_NLA_LINK_MAX + 1]; | |
545 | struct nlattr *prop[TIPC_NLA_PROP_MAX + 1]; | |
546 | struct nlattr *stats[TIPC_NLA_STATS_MAX + 1]; | |
297f7d2c | 547 | int err; |
0762216c | 548 | int len; |
f2b3b2d4 | 549 | |
297f7d2c BD |
550 | if (!attrs[TIPC_NLA_LINK]) |
551 | return -EINVAL; | |
f2b3b2d4 | 552 | |
8cb08174 JB |
553 | err = nla_parse_nested_deprecated(link, TIPC_NLA_LINK_MAX, |
554 | attrs[TIPC_NLA_LINK], NULL, NULL); | |
297f7d2c BD |
555 | if (err) |
556 | return err; | |
557 | ||
558 | if (!link[TIPC_NLA_LINK_PROP]) | |
559 | return -EINVAL; | |
f2b3b2d4 | 560 | |
8cb08174 JB |
561 | err = nla_parse_nested_deprecated(prop, TIPC_NLA_PROP_MAX, |
562 | link[TIPC_NLA_LINK_PROP], NULL, | |
563 | NULL); | |
297f7d2c BD |
564 | if (err) |
565 | return err; | |
566 | ||
567 | if (!link[TIPC_NLA_LINK_STATS]) | |
568 | return -EINVAL; | |
569 | ||
8cb08174 JB |
570 | err = nla_parse_nested_deprecated(stats, TIPC_NLA_STATS_MAX, |
571 | link[TIPC_NLA_LINK_STATS], NULL, | |
572 | NULL); | |
297f7d2c BD |
573 | if (err) |
574 | return err; | |
f2b3b2d4 RA |
575 | |
576 | name = (char *)TLV_DATA(msg->req); | |
0762216c | 577 | |
4f07b80c XL |
578 | len = TLV_GET_DATA_LEN(msg->req); |
579 | if (len <= 0) | |
580 | return -EINVAL; | |
581 | ||
fd567ac2 | 582 | len = min_t(int, len, TIPC_MAX_LINK_NAME); |
f1db99c0 | 583 | if (!string_is_terminated(name, len)) |
0762216c YX |
584 | return -EINVAL; |
585 | ||
f2b3b2d4 RA |
586 | if (strcmp(name, nla_data(link[TIPC_NLA_LINK_NAME])) != 0) |
587 | return 0; | |
588 | ||
589 | tipc_tlv_sprintf(msg->rep, "\nLink <%s>\n", | |
b3b7e64b | 590 | (char *)nla_data(link[TIPC_NLA_LINK_NAME])); |
f2b3b2d4 RA |
591 | |
592 | if (link[TIPC_NLA_LINK_BROADCAST]) { | |
593 | __fill_bc_link_stat(msg, prop, stats); | |
594 | return 0; | |
595 | } | |
596 | ||
597 | if (link[TIPC_NLA_LINK_ACTIVE]) | |
598 | tipc_tlv_sprintf(msg->rep, " ACTIVE"); | |
599 | else if (link[TIPC_NLA_LINK_UP]) | |
600 | tipc_tlv_sprintf(msg->rep, " STANDBY"); | |
601 | else | |
602 | tipc_tlv_sprintf(msg->rep, " DEFUNCT"); | |
603 | ||
604 | tipc_tlv_sprintf(msg->rep, " MTU:%u Priority:%u", | |
605 | nla_get_u32(link[TIPC_NLA_LINK_MTU]), | |
606 | nla_get_u32(prop[TIPC_NLA_PROP_PRIO])); | |
607 | ||
608 | tipc_tlv_sprintf(msg->rep, " Tolerance:%u ms Window:%u packets\n", | |
609 | nla_get_u32(prop[TIPC_NLA_PROP_TOL]), | |
610 | nla_get_u32(prop[TIPC_NLA_PROP_WIN])); | |
611 | ||
612 | tipc_tlv_sprintf(msg->rep, | |
613 | " RX packets:%u fragments:%u/%u bundles:%u/%u\n", | |
614 | nla_get_u32(link[TIPC_NLA_LINK_RX]) - | |
615 | nla_get_u32(stats[TIPC_NLA_STATS_RX_INFO]), | |
616 | nla_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTS]), | |
617 | nla_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTED]), | |
618 | nla_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLES]), | |
619 | nla_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLED])); | |
620 | ||
621 | tipc_tlv_sprintf(msg->rep, | |
622 | " TX packets:%u fragments:%u/%u bundles:%u/%u\n", | |
623 | nla_get_u32(link[TIPC_NLA_LINK_TX]) - | |
624 | nla_get_u32(stats[TIPC_NLA_STATS_TX_INFO]), | |
625 | nla_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTS]), | |
626 | nla_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTED]), | |
627 | nla_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLES]), | |
628 | nla_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLED])); | |
629 | ||
630 | tipc_tlv_sprintf(msg->rep, | |
631 | " TX profile sample:%u packets average:%u octets\n", | |
632 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_CNT]), | |
633 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_TOT]) / | |
634 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])); | |
635 | ||
636 | tipc_tlv_sprintf(msg->rep, | |
637 | " 0-64:%u%% -256:%u%% -1024:%u%% -4096:%u%% ", | |
638 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P0]), | |
639 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])), | |
640 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P1]), | |
641 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])), | |
642 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P2]), | |
643 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])), | |
644 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P3]), | |
645 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT]))); | |
646 | ||
647 | tipc_tlv_sprintf(msg->rep, "-16384:%u%% -32768:%u%% -66000:%u%%\n", | |
648 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P4]), | |
649 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])), | |
650 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P5]), | |
651 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])), | |
652 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P6]), | |
653 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT]))); | |
654 | ||
655 | tipc_tlv_sprintf(msg->rep, | |
656 | " RX states:%u probes:%u naks:%u defs:%u dups:%u\n", | |
657 | nla_get_u32(stats[TIPC_NLA_STATS_RX_STATES]), | |
658 | nla_get_u32(stats[TIPC_NLA_STATS_RX_PROBES]), | |
659 | nla_get_u32(stats[TIPC_NLA_STATS_RX_NACKS]), | |
660 | nla_get_u32(stats[TIPC_NLA_STATS_RX_DEFERRED]), | |
661 | nla_get_u32(stats[TIPC_NLA_STATS_DUPLICATES])); | |
662 | ||
663 | tipc_tlv_sprintf(msg->rep, | |
664 | " TX states:%u probes:%u naks:%u acks:%u dups:%u\n", | |
665 | nla_get_u32(stats[TIPC_NLA_STATS_TX_STATES]), | |
666 | nla_get_u32(stats[TIPC_NLA_STATS_TX_PROBES]), | |
667 | nla_get_u32(stats[TIPC_NLA_STATS_TX_NACKS]), | |
668 | nla_get_u32(stats[TIPC_NLA_STATS_TX_ACKS]), | |
669 | nla_get_u32(stats[TIPC_NLA_STATS_RETRANSMITTED])); | |
670 | ||
671 | tipc_tlv_sprintf(msg->rep, | |
672 | " Congestion link:%u Send queue max:%u avg:%u", | |
673 | nla_get_u32(stats[TIPC_NLA_STATS_LINK_CONGS]), | |
674 | nla_get_u32(stats[TIPC_NLA_STATS_MAX_QUEUE]), | |
675 | nla_get_u32(stats[TIPC_NLA_STATS_AVG_QUEUE])); | |
676 | ||
677 | return 0; | |
678 | } | |
679 | ||
357ebdbf RA |
680 | static int tipc_nl_compat_link_dump(struct tipc_nl_compat_msg *msg, |
681 | struct nlattr **attrs) | |
682 | { | |
683 | struct nlattr *link[TIPC_NLA_LINK_MAX + 1]; | |
684 | struct tipc_link_info link_info; | |
297f7d2c | 685 | int err; |
357ebdbf | 686 | |
297f7d2c BD |
687 | if (!attrs[TIPC_NLA_LINK]) |
688 | return -EINVAL; | |
689 | ||
8cb08174 JB |
690 | err = nla_parse_nested_deprecated(link, TIPC_NLA_LINK_MAX, |
691 | attrs[TIPC_NLA_LINK], NULL, NULL); | |
297f7d2c BD |
692 | if (err) |
693 | return err; | |
357ebdbf | 694 | |
1980d375 | 695 | link_info.dest = htonl(nla_get_flag(link[TIPC_NLA_LINK_DEST])); |
357ebdbf | 696 | link_info.up = htonl(nla_get_flag(link[TIPC_NLA_LINK_UP])); |
872f6903 | 697 | nla_strscpy(link_info.str, link[TIPC_NLA_LINK_NAME], |
5d2be142 | 698 | TIPC_MAX_LINK_NAME); |
357ebdbf RA |
699 | |
700 | return tipc_add_tlv(msg->rep, TIPC_TLV_LINK_INFO, | |
701 | &link_info, sizeof(link_info)); | |
702 | } | |
703 | ||
c3d6fb85 RA |
704 | static int __tipc_add_link_prop(struct sk_buff *skb, |
705 | struct tipc_nl_compat_msg *msg, | |
706 | struct tipc_link_config *lc) | |
707 | { | |
708 | switch (msg->cmd) { | |
709 | case TIPC_CMD_SET_LINK_PRI: | |
710 | return nla_put_u32(skb, TIPC_NLA_PROP_PRIO, ntohl(lc->value)); | |
711 | case TIPC_CMD_SET_LINK_TOL: | |
712 | return nla_put_u32(skb, TIPC_NLA_PROP_TOL, ntohl(lc->value)); | |
713 | case TIPC_CMD_SET_LINK_WINDOW: | |
714 | return nla_put_u32(skb, TIPC_NLA_PROP_WIN, ntohl(lc->value)); | |
715 | } | |
716 | ||
717 | return -EINVAL; | |
718 | } | |
719 | ||
720 | static int tipc_nl_compat_media_set(struct sk_buff *skb, | |
721 | struct tipc_nl_compat_msg *msg) | |
37e2d484 | 722 | { |
37e2d484 | 723 | struct nlattr *prop; |
c3d6fb85 RA |
724 | struct nlattr *media; |
725 | struct tipc_link_config *lc; | |
726 | ||
727 | lc = (struct tipc_link_config *)TLV_DATA(msg->req); | |
728 | ||
ae0be8de | 729 | media = nla_nest_start_noflag(skb, TIPC_NLA_MEDIA); |
c3d6fb85 RA |
730 | if (!media) |
731 | return -EMSGSIZE; | |
732 | ||
733 | if (nla_put_string(skb, TIPC_NLA_MEDIA_NAME, lc->name)) | |
734 | return -EMSGSIZE; | |
735 | ||
ae0be8de | 736 | prop = nla_nest_start_noflag(skb, TIPC_NLA_MEDIA_PROP); |
c3d6fb85 RA |
737 | if (!prop) |
738 | return -EMSGSIZE; | |
739 | ||
740 | __tipc_add_link_prop(skb, msg, lc); | |
741 | nla_nest_end(skb, prop); | |
742 | nla_nest_end(skb, media); | |
743 | ||
744 | return 0; | |
745 | } | |
746 | ||
747 | static int tipc_nl_compat_bearer_set(struct sk_buff *skb, | |
748 | struct tipc_nl_compat_msg *msg) | |
749 | { | |
750 | struct nlattr *prop; | |
751 | struct nlattr *bearer; | |
752 | struct tipc_link_config *lc; | |
753 | ||
754 | lc = (struct tipc_link_config *)TLV_DATA(msg->req); | |
755 | ||
ae0be8de | 756 | bearer = nla_nest_start_noflag(skb, TIPC_NLA_BEARER); |
c3d6fb85 RA |
757 | if (!bearer) |
758 | return -EMSGSIZE; | |
759 | ||
760 | if (nla_put_string(skb, TIPC_NLA_BEARER_NAME, lc->name)) | |
761 | return -EMSGSIZE; | |
762 | ||
ae0be8de | 763 | prop = nla_nest_start_noflag(skb, TIPC_NLA_BEARER_PROP); |
c3d6fb85 RA |
764 | if (!prop) |
765 | return -EMSGSIZE; | |
766 | ||
767 | __tipc_add_link_prop(skb, msg, lc); | |
768 | nla_nest_end(skb, prop); | |
769 | nla_nest_end(skb, bearer); | |
770 | ||
771 | return 0; | |
772 | } | |
773 | ||
774 | static int __tipc_nl_compat_link_set(struct sk_buff *skb, | |
775 | struct tipc_nl_compat_msg *msg) | |
776 | { | |
777 | struct nlattr *prop; | |
778 | struct nlattr *link; | |
37e2d484 RA |
779 | struct tipc_link_config *lc; |
780 | ||
781 | lc = (struct tipc_link_config *)TLV_DATA(msg->req); | |
782 | ||
ae0be8de | 783 | link = nla_nest_start_noflag(skb, TIPC_NLA_LINK); |
37e2d484 RA |
784 | if (!link) |
785 | return -EMSGSIZE; | |
786 | ||
787 | if (nla_put_string(skb, TIPC_NLA_LINK_NAME, lc->name)) | |
788 | return -EMSGSIZE; | |
789 | ||
ae0be8de | 790 | prop = nla_nest_start_noflag(skb, TIPC_NLA_LINK_PROP); |
37e2d484 RA |
791 | if (!prop) |
792 | return -EMSGSIZE; | |
793 | ||
c3d6fb85 | 794 | __tipc_add_link_prop(skb, msg, lc); |
37e2d484 RA |
795 | nla_nest_end(skb, prop); |
796 | nla_nest_end(skb, link); | |
797 | ||
798 | return 0; | |
799 | } | |
800 | ||
c3d6fb85 RA |
801 | static int tipc_nl_compat_link_set(struct tipc_nl_compat_cmd_doit *cmd, |
802 | struct sk_buff *skb, | |
803 | struct tipc_nl_compat_msg *msg) | |
804 | { | |
805 | struct tipc_link_config *lc; | |
806 | struct tipc_bearer *bearer; | |
807 | struct tipc_media *media; | |
edf5ff04 | 808 | int len; |
c3d6fb85 RA |
809 | |
810 | lc = (struct tipc_link_config *)TLV_DATA(msg->req); | |
811 | ||
8c63bf9a XL |
812 | len = TLV_GET_DATA_LEN(msg->req); |
813 | len -= offsetof(struct tipc_link_config, name); | |
814 | if (len <= 0) | |
815 | return -EINVAL; | |
816 | ||
817 | len = min_t(int, len, TIPC_MAX_LINK_NAME); | |
f1db99c0 | 818 | if (!string_is_terminated(lc->name, len)) |
edf5ff04 YX |
819 | return -EINVAL; |
820 | ||
c3d6fb85 RA |
821 | media = tipc_media_find(lc->name); |
822 | if (media) { | |
ed4ffdfe | 823 | cmd->doit = &__tipc_nl_media_set; |
c3d6fb85 RA |
824 | return tipc_nl_compat_media_set(skb, msg); |
825 | } | |
826 | ||
827 | bearer = tipc_bearer_find(msg->net, lc->name); | |
828 | if (bearer) { | |
ed4ffdfe | 829 | cmd->doit = &__tipc_nl_bearer_set; |
c3d6fb85 RA |
830 | return tipc_nl_compat_bearer_set(skb, msg); |
831 | } | |
832 | ||
833 | return __tipc_nl_compat_link_set(skb, msg); | |
834 | } | |
835 | ||
836 | static int tipc_nl_compat_link_reset_stats(struct tipc_nl_compat_cmd_doit *cmd, | |
837 | struct sk_buff *skb, | |
1817877b RA |
838 | struct tipc_nl_compat_msg *msg) |
839 | { | |
840 | char *name; | |
841 | struct nlattr *link; | |
8b66fee7 | 842 | int len; |
1817877b RA |
843 | |
844 | name = (char *)TLV_DATA(msg->req); | |
845 | ||
ae0be8de | 846 | link = nla_nest_start_noflag(skb, TIPC_NLA_LINK); |
1817877b RA |
847 | if (!link) |
848 | return -EMSGSIZE; | |
849 | ||
4f07b80c XL |
850 | len = TLV_GET_DATA_LEN(msg->req); |
851 | if (len <= 0) | |
852 | return -EINVAL; | |
853 | ||
fd567ac2 | 854 | len = min_t(int, len, TIPC_MAX_LINK_NAME); |
f1db99c0 | 855 | if (!string_is_terminated(name, len)) |
8b66fee7 YX |
856 | return -EINVAL; |
857 | ||
1817877b RA |
858 | if (nla_put_string(skb, TIPC_NLA_LINK_NAME, name)) |
859 | return -EMSGSIZE; | |
860 | ||
861 | nla_nest_end(skb, link); | |
862 | ||
863 | return 0; | |
864 | } | |
865 | ||
44a8ae94 RA |
866 | static int tipc_nl_compat_name_table_dump_header(struct tipc_nl_compat_msg *msg) |
867 | { | |
868 | int i; | |
869 | u32 depth; | |
870 | struct tipc_name_table_query *ntq; | |
871 | static const char * const header[] = { | |
872 | "Type ", | |
873 | "Lower Upper ", | |
874 | "Port Identity ", | |
875 | "Publication Scope" | |
876 | }; | |
877 | ||
878 | ntq = (struct tipc_name_table_query *)TLV_DATA(msg->req); | |
1c075b19 | 879 | if (TLV_GET_DATA_LEN(msg->req) < (int)sizeof(struct tipc_name_table_query)) |
974cb0e3 | 880 | return -EINVAL; |
44a8ae94 RA |
881 | |
882 | depth = ntohl(ntq->depth); | |
883 | ||
884 | if (depth > 4) | |
885 | depth = 4; | |
886 | for (i = 0; i < depth; i++) | |
887 | tipc_tlv_sprintf(msg->rep, header[i]); | |
888 | tipc_tlv_sprintf(msg->rep, "\n"); | |
889 | ||
890 | return 0; | |
891 | } | |
892 | ||
893 | static int tipc_nl_compat_name_table_dump(struct tipc_nl_compat_msg *msg, | |
894 | struct nlattr **attrs) | |
895 | { | |
896 | char port_str[27]; | |
897 | struct tipc_name_table_query *ntq; | |
898 | struct nlattr *nt[TIPC_NLA_NAME_TABLE_MAX + 1]; | |
899 | struct nlattr *publ[TIPC_NLA_PUBL_MAX + 1]; | |
900 | u32 node, depth, type, lowbound, upbound; | |
901 | static const char * const scope_str[] = {"", " zone", " cluster", | |
902 | " node"}; | |
297f7d2c | 903 | int err; |
44a8ae94 | 904 | |
297f7d2c BD |
905 | if (!attrs[TIPC_NLA_NAME_TABLE]) |
906 | return -EINVAL; | |
44a8ae94 | 907 | |
8cb08174 JB |
908 | err = nla_parse_nested_deprecated(nt, TIPC_NLA_NAME_TABLE_MAX, |
909 | attrs[TIPC_NLA_NAME_TABLE], NULL, | |
910 | NULL); | |
297f7d2c BD |
911 | if (err) |
912 | return err; | |
913 | ||
914 | if (!nt[TIPC_NLA_NAME_TABLE_PUBL]) | |
915 | return -EINVAL; | |
916 | ||
8cb08174 JB |
917 | err = nla_parse_nested_deprecated(publ, TIPC_NLA_PUBL_MAX, |
918 | nt[TIPC_NLA_NAME_TABLE_PUBL], NULL, | |
919 | NULL); | |
297f7d2c BD |
920 | if (err) |
921 | return err; | |
44a8ae94 RA |
922 | |
923 | ntq = (struct tipc_name_table_query *)TLV_DATA(msg->req); | |
924 | ||
925 | depth = ntohl(ntq->depth); | |
926 | type = ntohl(ntq->type); | |
927 | lowbound = ntohl(ntq->lowbound); | |
928 | upbound = ntohl(ntq->upbound); | |
929 | ||
930 | if (!(depth & TIPC_NTQ_ALLTYPES) && | |
931 | (type != nla_get_u32(publ[TIPC_NLA_PUBL_TYPE]))) | |
932 | return 0; | |
933 | if (lowbound && (lowbound > nla_get_u32(publ[TIPC_NLA_PUBL_UPPER]))) | |
934 | return 0; | |
935 | if (upbound && (upbound < nla_get_u32(publ[TIPC_NLA_PUBL_LOWER]))) | |
936 | return 0; | |
937 | ||
938 | tipc_tlv_sprintf(msg->rep, "%-10u ", | |
939 | nla_get_u32(publ[TIPC_NLA_PUBL_TYPE])); | |
940 | ||
941 | if (depth == 1) | |
942 | goto out; | |
943 | ||
944 | tipc_tlv_sprintf(msg->rep, "%-10u %-10u ", | |
945 | nla_get_u32(publ[TIPC_NLA_PUBL_LOWER]), | |
946 | nla_get_u32(publ[TIPC_NLA_PUBL_UPPER])); | |
947 | ||
948 | if (depth == 2) | |
949 | goto out; | |
950 | ||
951 | node = nla_get_u32(publ[TIPC_NLA_PUBL_NODE]); | |
952 | sprintf(port_str, "<%u.%u.%u:%u>", tipc_zone(node), tipc_cluster(node), | |
953 | tipc_node(node), nla_get_u32(publ[TIPC_NLA_PUBL_REF])); | |
954 | tipc_tlv_sprintf(msg->rep, "%-26s ", port_str); | |
955 | ||
956 | if (depth == 3) | |
957 | goto out; | |
958 | ||
959 | tipc_tlv_sprintf(msg->rep, "%-10u %s", | |
03aaaa9b | 960 | nla_get_u32(publ[TIPC_NLA_PUBL_KEY]), |
44a8ae94 RA |
961 | scope_str[nla_get_u32(publ[TIPC_NLA_PUBL_SCOPE])]); |
962 | out: | |
963 | tipc_tlv_sprintf(msg->rep, "\n"); | |
964 | ||
965 | return 0; | |
966 | } | |
967 | ||
487d2a3a RA |
968 | static int __tipc_nl_compat_publ_dump(struct tipc_nl_compat_msg *msg, |
969 | struct nlattr **attrs) | |
970 | { | |
971 | u32 type, lower, upper; | |
972 | struct nlattr *publ[TIPC_NLA_PUBL_MAX + 1]; | |
297f7d2c | 973 | int err; |
487d2a3a | 974 | |
297f7d2c BD |
975 | if (!attrs[TIPC_NLA_PUBL]) |
976 | return -EINVAL; | |
977 | ||
8cb08174 JB |
978 | err = nla_parse_nested_deprecated(publ, TIPC_NLA_PUBL_MAX, |
979 | attrs[TIPC_NLA_PUBL], NULL, NULL); | |
297f7d2c BD |
980 | if (err) |
981 | return err; | |
487d2a3a RA |
982 | |
983 | type = nla_get_u32(publ[TIPC_NLA_PUBL_TYPE]); | |
984 | lower = nla_get_u32(publ[TIPC_NLA_PUBL_LOWER]); | |
985 | upper = nla_get_u32(publ[TIPC_NLA_PUBL_UPPER]); | |
986 | ||
987 | if (lower == upper) | |
988 | tipc_tlv_sprintf(msg->rep, " {%u,%u}", type, lower); | |
989 | else | |
990 | tipc_tlv_sprintf(msg->rep, " {%u,%u,%u}", type, lower, upper); | |
991 | ||
992 | return 0; | |
993 | } | |
994 | ||
995 | static int tipc_nl_compat_publ_dump(struct tipc_nl_compat_msg *msg, u32 sock) | |
996 | { | |
997 | int err; | |
998 | void *hdr; | |
999 | struct nlattr *nest; | |
1000 | struct sk_buff *args; | |
1001 | struct tipc_nl_compat_cmd_dump dump; | |
1002 | ||
1003 | args = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
1004 | if (!args) | |
1005 | return -ENOMEM; | |
1006 | ||
1007 | hdr = genlmsg_put(args, 0, 0, &tipc_genl_family, NLM_F_MULTI, | |
1008 | TIPC_NL_PUBL_GET); | |
f87d8ad9 GS |
1009 | if (!hdr) { |
1010 | kfree_skb(args); | |
46273cf7 | 1011 | return -EMSGSIZE; |
f87d8ad9 | 1012 | } |
487d2a3a | 1013 | |
ae0be8de | 1014 | nest = nla_nest_start_noflag(args, TIPC_NLA_SOCK); |
487d2a3a RA |
1015 | if (!nest) { |
1016 | kfree_skb(args); | |
1017 | return -EMSGSIZE; | |
1018 | } | |
1019 | ||
1020 | if (nla_put_u32(args, TIPC_NLA_SOCK_REF, sock)) { | |
1021 | kfree_skb(args); | |
1022 | return -EMSGSIZE; | |
1023 | } | |
1024 | ||
1025 | nla_nest_end(args, nest); | |
1026 | genlmsg_end(args, hdr); | |
1027 | ||
1028 | dump.dumpit = tipc_nl_publ_dump; | |
1029 | dump.format = __tipc_nl_compat_publ_dump; | |
1030 | ||
1031 | err = __tipc_nl_compat_dumpit(&dump, msg, args); | |
1032 | ||
1033 | kfree_skb(args); | |
1034 | ||
1035 | return err; | |
1036 | } | |
1037 | ||
1038 | static int tipc_nl_compat_sk_dump(struct tipc_nl_compat_msg *msg, | |
1039 | struct nlattr **attrs) | |
1040 | { | |
1041 | int err; | |
1042 | u32 sock_ref; | |
1043 | struct nlattr *sock[TIPC_NLA_SOCK_MAX + 1]; | |
1044 | ||
297f7d2c BD |
1045 | if (!attrs[TIPC_NLA_SOCK]) |
1046 | return -EINVAL; | |
1047 | ||
8cb08174 JB |
1048 | err = nla_parse_nested_deprecated(sock, TIPC_NLA_SOCK_MAX, |
1049 | attrs[TIPC_NLA_SOCK], NULL, NULL); | |
297f7d2c BD |
1050 | if (err) |
1051 | return err; | |
487d2a3a RA |
1052 | |
1053 | sock_ref = nla_get_u32(sock[TIPC_NLA_SOCK_REF]); | |
1054 | tipc_tlv_sprintf(msg->rep, "%u:", sock_ref); | |
1055 | ||
1056 | if (sock[TIPC_NLA_SOCK_CON]) { | |
1057 | u32 node; | |
1058 | struct nlattr *con[TIPC_NLA_CON_MAX + 1]; | |
1059 | ||
8cb08174 JB |
1060 | err = nla_parse_nested_deprecated(con, TIPC_NLA_CON_MAX, |
1061 | sock[TIPC_NLA_SOCK_CON], | |
1062 | NULL, NULL); | |
89dfd008 AP |
1063 | |
1064 | if (err) | |
1065 | return err; | |
487d2a3a RA |
1066 | |
1067 | node = nla_get_u32(con[TIPC_NLA_CON_NODE]); | |
1068 | tipc_tlv_sprintf(msg->rep, " connected to <%u.%u.%u:%u>", | |
1069 | tipc_zone(node), | |
1070 | tipc_cluster(node), | |
1071 | tipc_node(node), | |
1072 | nla_get_u32(con[TIPC_NLA_CON_SOCK])); | |
1073 | ||
1074 | if (con[TIPC_NLA_CON_FLAG]) | |
1075 | tipc_tlv_sprintf(msg->rep, " via {%u,%u}\n", | |
1076 | nla_get_u32(con[TIPC_NLA_CON_TYPE]), | |
1077 | nla_get_u32(con[TIPC_NLA_CON_INST])); | |
1078 | else | |
1079 | tipc_tlv_sprintf(msg->rep, "\n"); | |
1080 | } else if (sock[TIPC_NLA_SOCK_HAS_PUBL]) { | |
1081 | tipc_tlv_sprintf(msg->rep, " bound to"); | |
1082 | ||
1083 | err = tipc_nl_compat_publ_dump(msg, sock_ref); | |
1084 | if (err) | |
1085 | return err; | |
1086 | } | |
1087 | tipc_tlv_sprintf(msg->rep, "\n"); | |
1088 | ||
1089 | return 0; | |
1090 | } | |
1091 | ||
5bfc335a RA |
1092 | static int tipc_nl_compat_media_dump(struct tipc_nl_compat_msg *msg, |
1093 | struct nlattr **attrs) | |
1094 | { | |
1095 | struct nlattr *media[TIPC_NLA_MEDIA_MAX + 1]; | |
297f7d2c BD |
1096 | int err; |
1097 | ||
1098 | if (!attrs[TIPC_NLA_MEDIA]) | |
1099 | return -EINVAL; | |
5bfc335a | 1100 | |
8cb08174 JB |
1101 | err = nla_parse_nested_deprecated(media, TIPC_NLA_MEDIA_MAX, |
1102 | attrs[TIPC_NLA_MEDIA], NULL, NULL); | |
297f7d2c BD |
1103 | if (err) |
1104 | return err; | |
5bfc335a RA |
1105 | |
1106 | return tipc_add_tlv(msg->rep, TIPC_TLV_MEDIA_NAME, | |
1107 | nla_data(media[TIPC_NLA_MEDIA_NAME]), | |
1108 | nla_len(media[TIPC_NLA_MEDIA_NAME])); | |
1109 | } | |
1110 | ||
4b28cb58 RA |
1111 | static int tipc_nl_compat_node_dump(struct tipc_nl_compat_msg *msg, |
1112 | struct nlattr **attrs) | |
1113 | { | |
1114 | struct tipc_node_info node_info; | |
1115 | struct nlattr *node[TIPC_NLA_NODE_MAX + 1]; | |
297f7d2c | 1116 | int err; |
4b28cb58 | 1117 | |
297f7d2c BD |
1118 | if (!attrs[TIPC_NLA_NODE]) |
1119 | return -EINVAL; | |
1120 | ||
8cb08174 JB |
1121 | err = nla_parse_nested_deprecated(node, TIPC_NLA_NODE_MAX, |
1122 | attrs[TIPC_NLA_NODE], NULL, NULL); | |
297f7d2c BD |
1123 | if (err) |
1124 | return err; | |
4b28cb58 RA |
1125 | |
1126 | node_info.addr = htonl(nla_get_u32(node[TIPC_NLA_NODE_ADDR])); | |
1127 | node_info.up = htonl(nla_get_flag(node[TIPC_NLA_NODE_UP])); | |
1128 | ||
1129 | return tipc_add_tlv(msg->rep, TIPC_TLV_NODE_INFO, &node_info, | |
1130 | sizeof(node_info)); | |
1131 | } | |
1132 | ||
c3d6fb85 RA |
1133 | static int tipc_nl_compat_net_set(struct tipc_nl_compat_cmd_doit *cmd, |
1134 | struct sk_buff *skb, | |
d7cc75d3 RA |
1135 | struct tipc_nl_compat_msg *msg) |
1136 | { | |
1137 | u32 val; | |
1138 | struct nlattr *net; | |
1139 | ||
1140 | val = ntohl(*(__be32 *)TLV_DATA(msg->req)); | |
1141 | ||
ae0be8de | 1142 | net = nla_nest_start_noflag(skb, TIPC_NLA_NET); |
d7cc75d3 RA |
1143 | if (!net) |
1144 | return -EMSGSIZE; | |
1145 | ||
964f9501 RA |
1146 | if (msg->cmd == TIPC_CMD_SET_NODE_ADDR) { |
1147 | if (nla_put_u32(skb, TIPC_NLA_NET_ADDR, val)) | |
1148 | return -EMSGSIZE; | |
1149 | } else if (msg->cmd == TIPC_CMD_SET_NETID) { | |
1150 | if (nla_put_u32(skb, TIPC_NLA_NET_ID, val)) | |
1151 | return -EMSGSIZE; | |
1152 | } | |
d7cc75d3 RA |
1153 | nla_nest_end(skb, net); |
1154 | ||
1155 | return 0; | |
1156 | } | |
1157 | ||
3c26181c RA |
1158 | static int tipc_nl_compat_net_dump(struct tipc_nl_compat_msg *msg, |
1159 | struct nlattr **attrs) | |
1160 | { | |
1161 | __be32 id; | |
1162 | struct nlattr *net[TIPC_NLA_NET_MAX + 1]; | |
297f7d2c BD |
1163 | int err; |
1164 | ||
1165 | if (!attrs[TIPC_NLA_NET]) | |
1166 | return -EINVAL; | |
1167 | ||
8cb08174 JB |
1168 | err = nla_parse_nested_deprecated(net, TIPC_NLA_NET_MAX, |
1169 | attrs[TIPC_NLA_NET], NULL, NULL); | |
297f7d2c BD |
1170 | if (err) |
1171 | return err; | |
3c26181c | 1172 | |
3c26181c RA |
1173 | id = htonl(nla_get_u32(net[TIPC_NLA_NET_ID])); |
1174 | ||
1175 | return tipc_add_tlv(msg->rep, TIPC_TLV_UNSIGNED, &id, sizeof(id)); | |
1176 | } | |
1177 | ||
5a81a637 RA |
1178 | static int tipc_cmd_show_stats_compat(struct tipc_nl_compat_msg *msg) |
1179 | { | |
1180 | msg->rep = tipc_tlv_alloc(ULTRA_STRING_MAX_LEN); | |
1181 | if (!msg->rep) | |
1182 | return -ENOMEM; | |
1183 | ||
1184 | tipc_tlv_init(msg->rep, TIPC_TLV_ULTRA_STRING); | |
1185 | tipc_tlv_sprintf(msg->rep, "TIPC version " TIPC_MOD_VER "\n"); | |
1186 | ||
1187 | return 0; | |
1188 | } | |
1189 | ||
d0796d1e RA |
1190 | static int tipc_nl_compat_handle(struct tipc_nl_compat_msg *msg) |
1191 | { | |
1192 | struct tipc_nl_compat_cmd_dump dump; | |
9ab15465 | 1193 | struct tipc_nl_compat_cmd_doit doit; |
d0796d1e RA |
1194 | |
1195 | memset(&dump, 0, sizeof(dump)); | |
9ab15465 | 1196 | memset(&doit, 0, sizeof(doit)); |
d0796d1e RA |
1197 | |
1198 | switch (msg->cmd) { | |
22ae7cff RA |
1199 | case TIPC_CMD_NOOP: |
1200 | msg->rep = tipc_tlv_alloc(0); | |
1201 | if (!msg->rep) | |
1202 | return -ENOMEM; | |
1203 | return 0; | |
d0796d1e RA |
1204 | case TIPC_CMD_GET_BEARER_NAMES: |
1205 | msg->rep_size = MAX_BEARERS * TLV_SPACE(TIPC_MAX_BEARER_NAME); | |
1206 | dump.dumpit = tipc_nl_bearer_dump; | |
1207 | dump.format = tipc_nl_compat_bearer_dump; | |
1208 | return tipc_nl_compat_dumpit(&dump, msg); | |
9ab15465 RA |
1209 | case TIPC_CMD_ENABLE_BEARER: |
1210 | msg->req_type = TIPC_TLV_BEARER_CONFIG; | |
ed4ffdfe | 1211 | doit.doit = __tipc_nl_bearer_enable; |
9ab15465 RA |
1212 | doit.transcode = tipc_nl_compat_bearer_enable; |
1213 | return tipc_nl_compat_doit(&doit, msg); | |
1214 | case TIPC_CMD_DISABLE_BEARER: | |
1215 | msg->req_type = TIPC_TLV_BEARER_NAME; | |
ed4ffdfe | 1216 | doit.doit = __tipc_nl_bearer_disable; |
9ab15465 RA |
1217 | doit.transcode = tipc_nl_compat_bearer_disable; |
1218 | return tipc_nl_compat_doit(&doit, msg); | |
f2b3b2d4 RA |
1219 | case TIPC_CMD_SHOW_LINK_STATS: |
1220 | msg->req_type = TIPC_TLV_LINK_NAME; | |
1221 | msg->rep_size = ULTRA_STRING_MAX_LEN; | |
1222 | msg->rep_type = TIPC_TLV_ULTRA_STRING; | |
38206d59 | 1223 | dump.dumpit = tipc_nl_node_dump_link; |
f2b3b2d4 RA |
1224 | dump.format = tipc_nl_compat_link_stat_dump; |
1225 | return tipc_nl_compat_dumpit(&dump, msg); | |
357ebdbf RA |
1226 | case TIPC_CMD_GET_LINKS: |
1227 | msg->req_type = TIPC_TLV_NET_ADDR; | |
1228 | msg->rep_size = ULTRA_STRING_MAX_LEN; | |
38206d59 | 1229 | dump.dumpit = tipc_nl_node_dump_link; |
357ebdbf RA |
1230 | dump.format = tipc_nl_compat_link_dump; |
1231 | return tipc_nl_compat_dumpit(&dump, msg); | |
37e2d484 RA |
1232 | case TIPC_CMD_SET_LINK_TOL: |
1233 | case TIPC_CMD_SET_LINK_PRI: | |
1234 | case TIPC_CMD_SET_LINK_WINDOW: | |
1235 | msg->req_type = TIPC_TLV_LINK_CONFIG; | |
5be9c086 | 1236 | doit.doit = tipc_nl_node_set_link; |
37e2d484 RA |
1237 | doit.transcode = tipc_nl_compat_link_set; |
1238 | return tipc_nl_compat_doit(&doit, msg); | |
1817877b RA |
1239 | case TIPC_CMD_RESET_LINK_STATS: |
1240 | msg->req_type = TIPC_TLV_LINK_NAME; | |
5be9c086 | 1241 | doit.doit = tipc_nl_node_reset_link_stats; |
1817877b RA |
1242 | doit.transcode = tipc_nl_compat_link_reset_stats; |
1243 | return tipc_nl_compat_doit(&doit, msg); | |
44a8ae94 RA |
1244 | case TIPC_CMD_SHOW_NAME_TABLE: |
1245 | msg->req_type = TIPC_TLV_NAME_TBL_QUERY; | |
1246 | msg->rep_size = ULTRA_STRING_MAX_LEN; | |
1247 | msg->rep_type = TIPC_TLV_ULTRA_STRING; | |
1248 | dump.header = tipc_nl_compat_name_table_dump_header; | |
1249 | dump.dumpit = tipc_nl_name_table_dump; | |
1250 | dump.format = tipc_nl_compat_name_table_dump; | |
1251 | return tipc_nl_compat_dumpit(&dump, msg); | |
487d2a3a RA |
1252 | case TIPC_CMD_SHOW_PORTS: |
1253 | msg->rep_size = ULTRA_STRING_MAX_LEN; | |
1254 | msg->rep_type = TIPC_TLV_ULTRA_STRING; | |
1255 | dump.dumpit = tipc_nl_sk_dump; | |
1256 | dump.format = tipc_nl_compat_sk_dump; | |
1257 | return tipc_nl_compat_dumpit(&dump, msg); | |
5bfc335a RA |
1258 | case TIPC_CMD_GET_MEDIA_NAMES: |
1259 | msg->rep_size = MAX_MEDIA * TLV_SPACE(TIPC_MAX_MEDIA_NAME); | |
1260 | dump.dumpit = tipc_nl_media_dump; | |
1261 | dump.format = tipc_nl_compat_media_dump; | |
1262 | return tipc_nl_compat_dumpit(&dump, msg); | |
4b28cb58 RA |
1263 | case TIPC_CMD_GET_NODES: |
1264 | msg->rep_size = ULTRA_STRING_MAX_LEN; | |
1265 | dump.dumpit = tipc_nl_node_dump; | |
1266 | dump.format = tipc_nl_compat_node_dump; | |
1267 | return tipc_nl_compat_dumpit(&dump, msg); | |
d7cc75d3 RA |
1268 | case TIPC_CMD_SET_NODE_ADDR: |
1269 | msg->req_type = TIPC_TLV_NET_ADDR; | |
ed4ffdfe | 1270 | doit.doit = __tipc_nl_net_set; |
d7cc75d3 RA |
1271 | doit.transcode = tipc_nl_compat_net_set; |
1272 | return tipc_nl_compat_doit(&doit, msg); | |
964f9501 RA |
1273 | case TIPC_CMD_SET_NETID: |
1274 | msg->req_type = TIPC_TLV_UNSIGNED; | |
ed4ffdfe | 1275 | doit.doit = __tipc_nl_net_set; |
964f9501 RA |
1276 | doit.transcode = tipc_nl_compat_net_set; |
1277 | return tipc_nl_compat_doit(&doit, msg); | |
3c26181c RA |
1278 | case TIPC_CMD_GET_NETID: |
1279 | msg->rep_size = sizeof(u32); | |
1280 | dump.dumpit = tipc_nl_net_dump; | |
1281 | dump.format = tipc_nl_compat_net_dump; | |
1282 | return tipc_nl_compat_dumpit(&dump, msg); | |
5a81a637 RA |
1283 | case TIPC_CMD_SHOW_STATS: |
1284 | return tipc_cmd_show_stats_compat(msg); | |
d0796d1e RA |
1285 | } |
1286 | ||
1287 | return -EOPNOTSUPP; | |
1288 | } | |
1289 | ||
1290 | static int tipc_nl_compat_recv(struct sk_buff *skb, struct genl_info *info) | |
1291 | { | |
1292 | int err; | |
1293 | int len; | |
1294 | struct tipc_nl_compat_msg msg; | |
1295 | struct nlmsghdr *req_nlh; | |
1296 | struct nlmsghdr *rep_nlh; | |
bffcc688 | 1297 | struct tipc_genlmsghdr *req_userhdr = genl_info_userhdr(info); |
d0796d1e RA |
1298 | |
1299 | memset(&msg, 0, sizeof(msg)); | |
1300 | ||
1301 | req_nlh = (struct nlmsghdr *)skb->data; | |
1302 | msg.req = nlmsg_data(req_nlh) + GENL_HDRLEN + TIPC_GENL_HDRLEN; | |
1303 | msg.cmd = req_userhdr->cmd; | |
c3d6fb85 | 1304 | msg.net = genl_info_net(info); |
619b1745 | 1305 | msg.dst_sk = skb->sk; |
d0796d1e RA |
1306 | |
1307 | if ((msg.cmd & 0xC000) && (!netlink_net_capable(skb, CAP_NET_ADMIN))) { | |
1308 | msg.rep = tipc_get_err_tlv(TIPC_CFG_NOT_NET_ADMIN); | |
1309 | err = -EACCES; | |
1310 | goto send; | |
1311 | } | |
1312 | ||
4da5f001 TK |
1313 | msg.req_size = nlmsg_attrlen(req_nlh, GENL_HDRLEN + TIPC_GENL_HDRLEN); |
1314 | if (msg.req_size && !TLV_OK(msg.req, msg.req_size)) { | |
d0796d1e RA |
1315 | msg.rep = tipc_get_err_tlv(TIPC_CFG_NOT_SUPPORTED); |
1316 | err = -EOPNOTSUPP; | |
1317 | goto send; | |
1318 | } | |
1319 | ||
1320 | err = tipc_nl_compat_handle(&msg); | |
b063bc5e | 1321 | if ((err == -EOPNOTSUPP) || (err == -EPERM)) |
d0796d1e RA |
1322 | msg.rep = tipc_get_err_tlv(TIPC_CFG_NOT_SUPPORTED); |
1323 | else if (err == -EINVAL) | |
1324 | msg.rep = tipc_get_err_tlv(TIPC_CFG_TLV_ERROR); | |
1325 | send: | |
1326 | if (!msg.rep) | |
1327 | return err; | |
1328 | ||
1329 | len = nlmsg_total_size(GENL_HDRLEN + TIPC_GENL_HDRLEN); | |
1330 | skb_push(msg.rep, len); | |
1331 | rep_nlh = nlmsg_hdr(msg.rep); | |
1332 | memcpy(rep_nlh, info->nlhdr, len); | |
1333 | rep_nlh->nlmsg_len = msg.rep->len; | |
c3d6fb85 | 1334 | genlmsg_unicast(msg.net, msg.rep, NETLINK_CB(skb).portid); |
d0796d1e RA |
1335 | |
1336 | return err; | |
1337 | } | |
1338 | ||
66a9b928 | 1339 | static const struct genl_small_ops tipc_genl_compat_ops[] = { |
489111e5 JB |
1340 | { |
1341 | .cmd = TIPC_GENL_CMD, | |
ef6243ac | 1342 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
489111e5 JB |
1343 | .doit = tipc_nl_compat_recv, |
1344 | }, | |
1345 | }; | |
1346 | ||
56989f6d | 1347 | static struct genl_family tipc_genl_compat_family __ro_after_init = { |
bfb3e5dd RA |
1348 | .name = TIPC_GENL_NAME, |
1349 | .version = TIPC_GENL_VERSION, | |
1350 | .hdrsize = TIPC_GENL_HDRLEN, | |
1351 | .maxattr = 0, | |
1352 | .netnsok = true, | |
489111e5 | 1353 | .module = THIS_MODULE, |
66a9b928 JK |
1354 | .small_ops = tipc_genl_compat_ops, |
1355 | .n_small_ops = ARRAY_SIZE(tipc_genl_compat_ops), | |
9c5d03d3 | 1356 | .resv_start_op = TIPC_GENL_CMD + 1, |
bfb3e5dd RA |
1357 | }; |
1358 | ||
56989f6d | 1359 | int __init tipc_netlink_compat_start(void) |
bfb3e5dd RA |
1360 | { |
1361 | int res; | |
1362 | ||
489111e5 | 1363 | res = genl_register_family(&tipc_genl_compat_family); |
bfb3e5dd RA |
1364 | if (res) { |
1365 | pr_err("Failed to register legacy compat interface\n"); | |
1366 | return res; | |
1367 | } | |
1368 | ||
1369 | return 0; | |
1370 | } | |
1371 | ||
1372 | void tipc_netlink_compat_stop(void) | |
1373 | { | |
1374 | genl_unregister_family(&tipc_genl_compat_family); | |
1375 | } |