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 RA |
41 | #include <net/genetlink.h> |
42 | #include <linux/tipc_config.h> | |
43 | ||
d0796d1e RA |
44 | /* The legacy API had an artificial message length limit called |
45 | * ULTRA_STRING_MAX_LEN. | |
46 | */ | |
47 | #define ULTRA_STRING_MAX_LEN 32768 | |
48 | ||
49 | #define TIPC_SKB_MAX TLV_SPACE(ULTRA_STRING_MAX_LEN) | |
50 | ||
51 | #define REPLY_TRUNCATED "<truncated>\n" | |
52 | ||
53 | struct tipc_nl_compat_msg { | |
54 | u16 cmd; | |
f2b3b2d4 | 55 | int rep_type; |
d0796d1e | 56 | int rep_size; |
9ab15465 | 57 | int req_type; |
c3d6fb85 | 58 | struct net *net; |
d0796d1e RA |
59 | struct sk_buff *rep; |
60 | struct tlv_desc *req; | |
61 | struct sock *dst_sk; | |
62 | }; | |
63 | ||
64 | struct tipc_nl_compat_cmd_dump { | |
44a8ae94 | 65 | int (*header)(struct tipc_nl_compat_msg *); |
d0796d1e RA |
66 | int (*dumpit)(struct sk_buff *, struct netlink_callback *); |
67 | int (*format)(struct tipc_nl_compat_msg *msg, struct nlattr **attrs); | |
68 | }; | |
69 | ||
9ab15465 RA |
70 | struct tipc_nl_compat_cmd_doit { |
71 | int (*doit)(struct sk_buff *skb, struct genl_info *info); | |
c3d6fb85 RA |
72 | int (*transcode)(struct tipc_nl_compat_cmd_doit *cmd, |
73 | struct sk_buff *skb, struct tipc_nl_compat_msg *msg); | |
9ab15465 RA |
74 | }; |
75 | ||
d0796d1e RA |
76 | static int tipc_skb_tailroom(struct sk_buff *skb) |
77 | { | |
78 | int tailroom; | |
79 | int limit; | |
80 | ||
81 | tailroom = skb_tailroom(skb); | |
82 | limit = TIPC_SKB_MAX - skb->len; | |
83 | ||
84 | if (tailroom < limit) | |
85 | return tailroom; | |
86 | ||
87 | return limit; | |
88 | } | |
89 | ||
90 | static int tipc_add_tlv(struct sk_buff *skb, u16 type, void *data, u16 len) | |
91 | { | |
92 | struct tlv_desc *tlv = (struct tlv_desc *)skb_tail_pointer(skb); | |
93 | ||
94 | if (tipc_skb_tailroom(skb) < TLV_SPACE(len)) | |
95 | return -EMSGSIZE; | |
96 | ||
97 | skb_put(skb, TLV_SPACE(len)); | |
98 | tlv->tlv_type = htons(type); | |
99 | tlv->tlv_len = htons(TLV_LENGTH(len)); | |
100 | if (len && data) | |
101 | memcpy(TLV_DATA(tlv), data, len); | |
102 | ||
103 | return 0; | |
104 | } | |
105 | ||
f2b3b2d4 RA |
106 | static void tipc_tlv_init(struct sk_buff *skb, u16 type) |
107 | { | |
108 | struct tlv_desc *tlv = (struct tlv_desc *)skb->data; | |
109 | ||
110 | TLV_SET_LEN(tlv, 0); | |
111 | TLV_SET_TYPE(tlv, type); | |
112 | skb_put(skb, sizeof(struct tlv_desc)); | |
113 | } | |
114 | ||
115 | static int tipc_tlv_sprintf(struct sk_buff *skb, const char *fmt, ...) | |
116 | { | |
117 | int n; | |
118 | u16 len; | |
119 | u32 rem; | |
120 | char *buf; | |
121 | struct tlv_desc *tlv; | |
122 | va_list args; | |
123 | ||
124 | rem = tipc_skb_tailroom(skb); | |
125 | ||
126 | tlv = (struct tlv_desc *)skb->data; | |
127 | len = TLV_GET_LEN(tlv); | |
128 | buf = TLV_DATA(tlv) + len; | |
129 | ||
130 | va_start(args, fmt); | |
131 | n = vscnprintf(buf, rem, fmt, args); | |
132 | va_end(args); | |
133 | ||
134 | TLV_SET_LEN(tlv, n + len); | |
135 | skb_put(skb, n); | |
136 | ||
137 | return n; | |
138 | } | |
139 | ||
d0796d1e RA |
140 | static struct sk_buff *tipc_tlv_alloc(int size) |
141 | { | |
142 | int hdr_len; | |
143 | struct sk_buff *buf; | |
144 | ||
145 | size = TLV_SPACE(size); | |
146 | hdr_len = nlmsg_total_size(GENL_HDRLEN + TIPC_GENL_HDRLEN); | |
147 | ||
148 | buf = alloc_skb(hdr_len + size, GFP_KERNEL); | |
149 | if (!buf) | |
150 | return NULL; | |
151 | ||
152 | skb_reserve(buf, hdr_len); | |
153 | ||
154 | return buf; | |
155 | } | |
156 | ||
157 | static struct sk_buff *tipc_get_err_tlv(char *str) | |
158 | { | |
159 | int str_len = strlen(str) + 1; | |
160 | struct sk_buff *buf; | |
161 | ||
162 | buf = tipc_tlv_alloc(TLV_SPACE(str_len)); | |
163 | if (buf) | |
164 | tipc_add_tlv(buf, TIPC_TLV_ERROR_STRING, str, str_len); | |
165 | ||
166 | return buf; | |
167 | } | |
168 | ||
169 | static int __tipc_nl_compat_dumpit(struct tipc_nl_compat_cmd_dump *cmd, | |
170 | struct tipc_nl_compat_msg *msg, | |
171 | struct sk_buff *arg) | |
172 | { | |
173 | int len = 0; | |
174 | int err; | |
175 | struct sk_buff *buf; | |
176 | struct nlmsghdr *nlmsg; | |
177 | struct netlink_callback cb; | |
178 | ||
179 | memset(&cb, 0, sizeof(cb)); | |
180 | cb.nlh = (struct nlmsghdr *)arg->data; | |
181 | cb.skb = arg; | |
182 | ||
183 | buf = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
184 | if (!buf) | |
185 | return -ENOMEM; | |
186 | ||
187 | buf->sk = msg->dst_sk; | |
188 | ||
189 | do { | |
190 | int rem; | |
191 | ||
192 | len = (*cmd->dumpit)(buf, &cb); | |
193 | ||
194 | nlmsg_for_each_msg(nlmsg, nlmsg_hdr(buf), len, rem) { | |
195 | struct nlattr **attrs; | |
196 | ||
197 | err = tipc_nlmsg_parse(nlmsg, &attrs); | |
198 | if (err) | |
199 | goto err_out; | |
200 | ||
201 | err = (*cmd->format)(msg, attrs); | |
202 | if (err) | |
203 | goto err_out; | |
204 | ||
205 | if (tipc_skb_tailroom(msg->rep) <= 1) { | |
206 | err = -EMSGSIZE; | |
207 | goto err_out; | |
208 | } | |
209 | } | |
210 | ||
211 | skb_reset_tail_pointer(buf); | |
212 | buf->len = 0; | |
213 | ||
214 | } while (len); | |
215 | ||
216 | err = 0; | |
217 | ||
218 | err_out: | |
219 | kfree_skb(buf); | |
220 | ||
221 | if (err == -EMSGSIZE) { | |
222 | /* The legacy API only considered messages filling | |
223 | * "ULTRA_STRING_MAX_LEN" to be truncated. | |
224 | */ | |
225 | if ((TIPC_SKB_MAX - msg->rep->len) <= 1) { | |
226 | char *tail = skb_tail_pointer(msg->rep); | |
227 | ||
228 | if (*tail != '\0') | |
229 | sprintf(tail - sizeof(REPLY_TRUNCATED) - 1, | |
230 | REPLY_TRUNCATED); | |
231 | } | |
232 | ||
233 | return 0; | |
234 | } | |
235 | ||
236 | return err; | |
237 | } | |
238 | ||
239 | static int tipc_nl_compat_dumpit(struct tipc_nl_compat_cmd_dump *cmd, | |
240 | struct tipc_nl_compat_msg *msg) | |
241 | { | |
242 | int err; | |
243 | struct sk_buff *arg; | |
244 | ||
f2b3b2d4 RA |
245 | if (msg->req_type && !TLV_CHECK_TYPE(msg->req, msg->req_type)) |
246 | return -EINVAL; | |
247 | ||
d0796d1e RA |
248 | msg->rep = tipc_tlv_alloc(msg->rep_size); |
249 | if (!msg->rep) | |
250 | return -ENOMEM; | |
251 | ||
f2b3b2d4 RA |
252 | if (msg->rep_type) |
253 | tipc_tlv_init(msg->rep, msg->rep_type); | |
254 | ||
44a8ae94 RA |
255 | if (cmd->header) |
256 | (*cmd->header)(msg); | |
257 | ||
d0796d1e RA |
258 | arg = nlmsg_new(0, GFP_KERNEL); |
259 | if (!arg) { | |
260 | kfree_skb(msg->rep); | |
261 | return -ENOMEM; | |
262 | } | |
263 | ||
264 | err = __tipc_nl_compat_dumpit(cmd, msg, arg); | |
265 | if (err) | |
266 | kfree_skb(msg->rep); | |
267 | ||
268 | kfree_skb(arg); | |
269 | ||
270 | return err; | |
271 | } | |
272 | ||
9ab15465 RA |
273 | static int __tipc_nl_compat_doit(struct tipc_nl_compat_cmd_doit *cmd, |
274 | struct tipc_nl_compat_msg *msg) | |
275 | { | |
276 | int err; | |
277 | struct sk_buff *doit_buf; | |
278 | struct sk_buff *trans_buf; | |
279 | struct nlattr **attrbuf; | |
280 | struct genl_info info; | |
281 | ||
282 | trans_buf = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL); | |
283 | if (!trans_buf) | |
284 | return -ENOMEM; | |
285 | ||
c3d6fb85 | 286 | err = (*cmd->transcode)(cmd, trans_buf, msg); |
9ab15465 RA |
287 | if (err) |
288 | goto trans_out; | |
289 | ||
290 | attrbuf = kmalloc((tipc_genl_family.maxattr + 1) * | |
291 | sizeof(struct nlattr *), GFP_KERNEL); | |
292 | if (!attrbuf) { | |
293 | err = -ENOMEM; | |
294 | goto trans_out; | |
295 | } | |
296 | ||
297 | err = nla_parse(attrbuf, tipc_genl_family.maxattr, | |
298 | (const struct nlattr *)trans_buf->data, | |
299 | trans_buf->len, NULL); | |
300 | if (err) | |
301 | goto parse_out; | |
302 | ||
303 | doit_buf = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL); | |
304 | if (!doit_buf) { | |
305 | err = -ENOMEM; | |
306 | goto parse_out; | |
307 | } | |
308 | ||
309 | doit_buf->sk = msg->dst_sk; | |
310 | ||
311 | memset(&info, 0, sizeof(info)); | |
312 | info.attrs = attrbuf; | |
313 | ||
314 | err = (*cmd->doit)(doit_buf, &info); | |
315 | ||
316 | kfree_skb(doit_buf); | |
317 | parse_out: | |
318 | kfree(attrbuf); | |
319 | trans_out: | |
320 | kfree_skb(trans_buf); | |
321 | ||
322 | return err; | |
323 | } | |
324 | ||
325 | static int tipc_nl_compat_doit(struct tipc_nl_compat_cmd_doit *cmd, | |
326 | struct tipc_nl_compat_msg *msg) | |
327 | { | |
328 | int err; | |
329 | ||
330 | if (msg->req_type && !TLV_CHECK_TYPE(msg->req, msg->req_type)) | |
331 | return -EINVAL; | |
332 | ||
333 | err = __tipc_nl_compat_doit(cmd, msg); | |
334 | if (err) | |
335 | return err; | |
336 | ||
337 | /* The legacy API considered an empty message a success message */ | |
338 | msg->rep = tipc_tlv_alloc(0); | |
339 | if (!msg->rep) | |
340 | return -ENOMEM; | |
341 | ||
342 | return 0; | |
343 | } | |
344 | ||
d0796d1e RA |
345 | static int tipc_nl_compat_bearer_dump(struct tipc_nl_compat_msg *msg, |
346 | struct nlattr **attrs) | |
347 | { | |
348 | struct nlattr *bearer[TIPC_NLA_BEARER_MAX + 1]; | |
297f7d2c BD |
349 | int err; |
350 | ||
351 | if (!attrs[TIPC_NLA_BEARER]) | |
352 | return -EINVAL; | |
d0796d1e | 353 | |
297f7d2c BD |
354 | err = nla_parse_nested(bearer, TIPC_NLA_BEARER_MAX, |
355 | attrs[TIPC_NLA_BEARER], NULL); | |
356 | if (err) | |
357 | return err; | |
d0796d1e RA |
358 | |
359 | return tipc_add_tlv(msg->rep, TIPC_TLV_BEARER_NAME, | |
360 | nla_data(bearer[TIPC_NLA_BEARER_NAME]), | |
361 | nla_len(bearer[TIPC_NLA_BEARER_NAME])); | |
362 | } | |
363 | ||
c3d6fb85 RA |
364 | static int tipc_nl_compat_bearer_enable(struct tipc_nl_compat_cmd_doit *cmd, |
365 | struct sk_buff *skb, | |
9ab15465 RA |
366 | struct tipc_nl_compat_msg *msg) |
367 | { | |
368 | struct nlattr *prop; | |
369 | struct nlattr *bearer; | |
370 | struct tipc_bearer_config *b; | |
371 | ||
372 | b = (struct tipc_bearer_config *)TLV_DATA(msg->req); | |
373 | ||
374 | bearer = nla_nest_start(skb, TIPC_NLA_BEARER); | |
375 | if (!bearer) | |
376 | return -EMSGSIZE; | |
377 | ||
378 | if (nla_put_string(skb, TIPC_NLA_BEARER_NAME, b->name)) | |
379 | return -EMSGSIZE; | |
380 | ||
381 | if (nla_put_u32(skb, TIPC_NLA_BEARER_DOMAIN, ntohl(b->disc_domain))) | |
382 | return -EMSGSIZE; | |
383 | ||
384 | if (ntohl(b->priority) <= TIPC_MAX_LINK_PRI) { | |
385 | prop = nla_nest_start(skb, TIPC_NLA_BEARER_PROP); | |
386 | if (!prop) | |
387 | return -EMSGSIZE; | |
388 | if (nla_put_u32(skb, TIPC_NLA_PROP_PRIO, ntohl(b->priority))) | |
389 | return -EMSGSIZE; | |
390 | nla_nest_end(skb, prop); | |
391 | } | |
392 | nla_nest_end(skb, bearer); | |
393 | ||
394 | return 0; | |
395 | } | |
396 | ||
c3d6fb85 RA |
397 | static int tipc_nl_compat_bearer_disable(struct tipc_nl_compat_cmd_doit *cmd, |
398 | struct sk_buff *skb, | |
9ab15465 RA |
399 | struct tipc_nl_compat_msg *msg) |
400 | { | |
401 | char *name; | |
402 | struct nlattr *bearer; | |
403 | ||
404 | name = (char *)TLV_DATA(msg->req); | |
405 | ||
406 | bearer = nla_nest_start(skb, TIPC_NLA_BEARER); | |
407 | if (!bearer) | |
408 | return -EMSGSIZE; | |
409 | ||
410 | if (nla_put_string(skb, TIPC_NLA_BEARER_NAME, name)) | |
411 | return -EMSGSIZE; | |
412 | ||
413 | nla_nest_end(skb, bearer); | |
414 | ||
415 | return 0; | |
416 | } | |
417 | ||
f2b3b2d4 RA |
418 | static inline u32 perc(u32 count, u32 total) |
419 | { | |
420 | return (count * 100 + (total / 2)) / total; | |
421 | } | |
422 | ||
423 | static void __fill_bc_link_stat(struct tipc_nl_compat_msg *msg, | |
424 | struct nlattr *prop[], struct nlattr *stats[]) | |
425 | { | |
426 | tipc_tlv_sprintf(msg->rep, " Window:%u packets\n", | |
427 | nla_get_u32(prop[TIPC_NLA_PROP_WIN])); | |
428 | ||
429 | tipc_tlv_sprintf(msg->rep, | |
430 | " RX packets:%u fragments:%u/%u bundles:%u/%u\n", | |
431 | nla_get_u32(stats[TIPC_NLA_STATS_RX_INFO]), | |
432 | nla_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTS]), | |
433 | nla_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTED]), | |
434 | nla_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLES]), | |
435 | nla_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLED])); | |
436 | ||
437 | tipc_tlv_sprintf(msg->rep, | |
438 | " TX packets:%u fragments:%u/%u bundles:%u/%u\n", | |
439 | nla_get_u32(stats[TIPC_NLA_STATS_TX_INFO]), | |
440 | nla_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTS]), | |
441 | nla_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTED]), | |
442 | nla_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLES]), | |
443 | nla_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLED])); | |
444 | ||
445 | tipc_tlv_sprintf(msg->rep, " RX naks:%u defs:%u dups:%u\n", | |
446 | nla_get_u32(stats[TIPC_NLA_STATS_RX_NACKS]), | |
447 | nla_get_u32(stats[TIPC_NLA_STATS_RX_DEFERRED]), | |
448 | nla_get_u32(stats[TIPC_NLA_STATS_DUPLICATES])); | |
449 | ||
450 | tipc_tlv_sprintf(msg->rep, " TX naks:%u acks:%u dups:%u\n", | |
451 | nla_get_u32(stats[TIPC_NLA_STATS_TX_NACKS]), | |
452 | nla_get_u32(stats[TIPC_NLA_STATS_TX_ACKS]), | |
453 | nla_get_u32(stats[TIPC_NLA_STATS_RETRANSMITTED])); | |
454 | ||
455 | tipc_tlv_sprintf(msg->rep, | |
456 | " Congestion link:%u Send queue max:%u avg:%u", | |
457 | nla_get_u32(stats[TIPC_NLA_STATS_LINK_CONGS]), | |
458 | nla_get_u32(stats[TIPC_NLA_STATS_MAX_QUEUE]), | |
459 | nla_get_u32(stats[TIPC_NLA_STATS_AVG_QUEUE])); | |
460 | } | |
461 | ||
462 | static int tipc_nl_compat_link_stat_dump(struct tipc_nl_compat_msg *msg, | |
463 | struct nlattr **attrs) | |
464 | { | |
465 | char *name; | |
466 | struct nlattr *link[TIPC_NLA_LINK_MAX + 1]; | |
467 | struct nlattr *prop[TIPC_NLA_PROP_MAX + 1]; | |
468 | struct nlattr *stats[TIPC_NLA_STATS_MAX + 1]; | |
297f7d2c | 469 | int err; |
f2b3b2d4 | 470 | |
297f7d2c BD |
471 | if (!attrs[TIPC_NLA_LINK]) |
472 | return -EINVAL; | |
f2b3b2d4 | 473 | |
297f7d2c BD |
474 | err = nla_parse_nested(link, TIPC_NLA_LINK_MAX, attrs[TIPC_NLA_LINK], |
475 | NULL); | |
476 | if (err) | |
477 | return err; | |
478 | ||
479 | if (!link[TIPC_NLA_LINK_PROP]) | |
480 | return -EINVAL; | |
f2b3b2d4 | 481 | |
297f7d2c BD |
482 | err = nla_parse_nested(prop, TIPC_NLA_PROP_MAX, |
483 | link[TIPC_NLA_LINK_PROP], NULL); | |
484 | if (err) | |
485 | return err; | |
486 | ||
487 | if (!link[TIPC_NLA_LINK_STATS]) | |
488 | return -EINVAL; | |
489 | ||
490 | err = nla_parse_nested(stats, TIPC_NLA_STATS_MAX, | |
491 | link[TIPC_NLA_LINK_STATS], NULL); | |
492 | if (err) | |
493 | return err; | |
f2b3b2d4 RA |
494 | |
495 | name = (char *)TLV_DATA(msg->req); | |
496 | if (strcmp(name, nla_data(link[TIPC_NLA_LINK_NAME])) != 0) | |
497 | return 0; | |
498 | ||
499 | tipc_tlv_sprintf(msg->rep, "\nLink <%s>\n", | |
500 | nla_data(link[TIPC_NLA_LINK_NAME])); | |
501 | ||
502 | if (link[TIPC_NLA_LINK_BROADCAST]) { | |
503 | __fill_bc_link_stat(msg, prop, stats); | |
504 | return 0; | |
505 | } | |
506 | ||
507 | if (link[TIPC_NLA_LINK_ACTIVE]) | |
508 | tipc_tlv_sprintf(msg->rep, " ACTIVE"); | |
509 | else if (link[TIPC_NLA_LINK_UP]) | |
510 | tipc_tlv_sprintf(msg->rep, " STANDBY"); | |
511 | else | |
512 | tipc_tlv_sprintf(msg->rep, " DEFUNCT"); | |
513 | ||
514 | tipc_tlv_sprintf(msg->rep, " MTU:%u Priority:%u", | |
515 | nla_get_u32(link[TIPC_NLA_LINK_MTU]), | |
516 | nla_get_u32(prop[TIPC_NLA_PROP_PRIO])); | |
517 | ||
518 | tipc_tlv_sprintf(msg->rep, " Tolerance:%u ms Window:%u packets\n", | |
519 | nla_get_u32(prop[TIPC_NLA_PROP_TOL]), | |
520 | nla_get_u32(prop[TIPC_NLA_PROP_WIN])); | |
521 | ||
522 | tipc_tlv_sprintf(msg->rep, | |
523 | " RX packets:%u fragments:%u/%u bundles:%u/%u\n", | |
524 | nla_get_u32(link[TIPC_NLA_LINK_RX]) - | |
525 | nla_get_u32(stats[TIPC_NLA_STATS_RX_INFO]), | |
526 | nla_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTS]), | |
527 | nla_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTED]), | |
528 | nla_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLES]), | |
529 | nla_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLED])); | |
530 | ||
531 | tipc_tlv_sprintf(msg->rep, | |
532 | " TX packets:%u fragments:%u/%u bundles:%u/%u\n", | |
533 | nla_get_u32(link[TIPC_NLA_LINK_TX]) - | |
534 | nla_get_u32(stats[TIPC_NLA_STATS_TX_INFO]), | |
535 | nla_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTS]), | |
536 | nla_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTED]), | |
537 | nla_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLES]), | |
538 | nla_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLED])); | |
539 | ||
540 | tipc_tlv_sprintf(msg->rep, | |
541 | " TX profile sample:%u packets average:%u octets\n", | |
542 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_CNT]), | |
543 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_TOT]) / | |
544 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])); | |
545 | ||
546 | tipc_tlv_sprintf(msg->rep, | |
547 | " 0-64:%u%% -256:%u%% -1024:%u%% -4096:%u%% ", | |
548 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P0]), | |
549 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])), | |
550 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P1]), | |
551 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])), | |
552 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P2]), | |
553 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])), | |
554 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P3]), | |
555 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT]))); | |
556 | ||
557 | tipc_tlv_sprintf(msg->rep, "-16384:%u%% -32768:%u%% -66000:%u%%\n", | |
558 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P4]), | |
559 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])), | |
560 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P5]), | |
561 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])), | |
562 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P6]), | |
563 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT]))); | |
564 | ||
565 | tipc_tlv_sprintf(msg->rep, | |
566 | " RX states:%u probes:%u naks:%u defs:%u dups:%u\n", | |
567 | nla_get_u32(stats[TIPC_NLA_STATS_RX_STATES]), | |
568 | nla_get_u32(stats[TIPC_NLA_STATS_RX_PROBES]), | |
569 | nla_get_u32(stats[TIPC_NLA_STATS_RX_NACKS]), | |
570 | nla_get_u32(stats[TIPC_NLA_STATS_RX_DEFERRED]), | |
571 | nla_get_u32(stats[TIPC_NLA_STATS_DUPLICATES])); | |
572 | ||
573 | tipc_tlv_sprintf(msg->rep, | |
574 | " TX states:%u probes:%u naks:%u acks:%u dups:%u\n", | |
575 | nla_get_u32(stats[TIPC_NLA_STATS_TX_STATES]), | |
576 | nla_get_u32(stats[TIPC_NLA_STATS_TX_PROBES]), | |
577 | nla_get_u32(stats[TIPC_NLA_STATS_TX_NACKS]), | |
578 | nla_get_u32(stats[TIPC_NLA_STATS_TX_ACKS]), | |
579 | nla_get_u32(stats[TIPC_NLA_STATS_RETRANSMITTED])); | |
580 | ||
581 | tipc_tlv_sprintf(msg->rep, | |
582 | " Congestion link:%u Send queue max:%u avg:%u", | |
583 | nla_get_u32(stats[TIPC_NLA_STATS_LINK_CONGS]), | |
584 | nla_get_u32(stats[TIPC_NLA_STATS_MAX_QUEUE]), | |
585 | nla_get_u32(stats[TIPC_NLA_STATS_AVG_QUEUE])); | |
586 | ||
587 | return 0; | |
588 | } | |
589 | ||
357ebdbf RA |
590 | static int tipc_nl_compat_link_dump(struct tipc_nl_compat_msg *msg, |
591 | struct nlattr **attrs) | |
592 | { | |
593 | struct nlattr *link[TIPC_NLA_LINK_MAX + 1]; | |
594 | struct tipc_link_info link_info; | |
297f7d2c | 595 | int err; |
357ebdbf | 596 | |
297f7d2c BD |
597 | if (!attrs[TIPC_NLA_LINK]) |
598 | return -EINVAL; | |
599 | ||
600 | err = nla_parse_nested(link, TIPC_NLA_LINK_MAX, attrs[TIPC_NLA_LINK], | |
601 | NULL); | |
602 | if (err) | |
603 | return err; | |
357ebdbf RA |
604 | |
605 | link_info.dest = nla_get_flag(link[TIPC_NLA_LINK_DEST]); | |
606 | link_info.up = htonl(nla_get_flag(link[TIPC_NLA_LINK_UP])); | |
55e77a3e | 607 | nla_strlcpy(link_info.str, link[TIPC_NLA_LINK_NAME], |
5d2be142 | 608 | TIPC_MAX_LINK_NAME); |
357ebdbf RA |
609 | |
610 | return tipc_add_tlv(msg->rep, TIPC_TLV_LINK_INFO, | |
611 | &link_info, sizeof(link_info)); | |
612 | } | |
613 | ||
c3d6fb85 RA |
614 | static int __tipc_add_link_prop(struct sk_buff *skb, |
615 | struct tipc_nl_compat_msg *msg, | |
616 | struct tipc_link_config *lc) | |
617 | { | |
618 | switch (msg->cmd) { | |
619 | case TIPC_CMD_SET_LINK_PRI: | |
620 | return nla_put_u32(skb, TIPC_NLA_PROP_PRIO, ntohl(lc->value)); | |
621 | case TIPC_CMD_SET_LINK_TOL: | |
622 | return nla_put_u32(skb, TIPC_NLA_PROP_TOL, ntohl(lc->value)); | |
623 | case TIPC_CMD_SET_LINK_WINDOW: | |
624 | return nla_put_u32(skb, TIPC_NLA_PROP_WIN, ntohl(lc->value)); | |
625 | } | |
626 | ||
627 | return -EINVAL; | |
628 | } | |
629 | ||
630 | static int tipc_nl_compat_media_set(struct sk_buff *skb, | |
631 | struct tipc_nl_compat_msg *msg) | |
37e2d484 | 632 | { |
37e2d484 | 633 | struct nlattr *prop; |
c3d6fb85 RA |
634 | struct nlattr *media; |
635 | struct tipc_link_config *lc; | |
636 | ||
637 | lc = (struct tipc_link_config *)TLV_DATA(msg->req); | |
638 | ||
639 | media = nla_nest_start(skb, TIPC_NLA_MEDIA); | |
640 | if (!media) | |
641 | return -EMSGSIZE; | |
642 | ||
643 | if (nla_put_string(skb, TIPC_NLA_MEDIA_NAME, lc->name)) | |
644 | return -EMSGSIZE; | |
645 | ||
646 | prop = nla_nest_start(skb, TIPC_NLA_MEDIA_PROP); | |
647 | if (!prop) | |
648 | return -EMSGSIZE; | |
649 | ||
650 | __tipc_add_link_prop(skb, msg, lc); | |
651 | nla_nest_end(skb, prop); | |
652 | nla_nest_end(skb, media); | |
653 | ||
654 | return 0; | |
655 | } | |
656 | ||
657 | static int tipc_nl_compat_bearer_set(struct sk_buff *skb, | |
658 | struct tipc_nl_compat_msg *msg) | |
659 | { | |
660 | struct nlattr *prop; | |
661 | struct nlattr *bearer; | |
662 | struct tipc_link_config *lc; | |
663 | ||
664 | lc = (struct tipc_link_config *)TLV_DATA(msg->req); | |
665 | ||
666 | bearer = nla_nest_start(skb, TIPC_NLA_BEARER); | |
667 | if (!bearer) | |
668 | return -EMSGSIZE; | |
669 | ||
670 | if (nla_put_string(skb, TIPC_NLA_BEARER_NAME, lc->name)) | |
671 | return -EMSGSIZE; | |
672 | ||
673 | prop = nla_nest_start(skb, TIPC_NLA_BEARER_PROP); | |
674 | if (!prop) | |
675 | return -EMSGSIZE; | |
676 | ||
677 | __tipc_add_link_prop(skb, msg, lc); | |
678 | nla_nest_end(skb, prop); | |
679 | nla_nest_end(skb, bearer); | |
680 | ||
681 | return 0; | |
682 | } | |
683 | ||
684 | static int __tipc_nl_compat_link_set(struct sk_buff *skb, | |
685 | struct tipc_nl_compat_msg *msg) | |
686 | { | |
687 | struct nlattr *prop; | |
688 | struct nlattr *link; | |
37e2d484 RA |
689 | struct tipc_link_config *lc; |
690 | ||
691 | lc = (struct tipc_link_config *)TLV_DATA(msg->req); | |
692 | ||
693 | link = nla_nest_start(skb, TIPC_NLA_LINK); | |
694 | if (!link) | |
695 | return -EMSGSIZE; | |
696 | ||
697 | if (nla_put_string(skb, TIPC_NLA_LINK_NAME, lc->name)) | |
698 | return -EMSGSIZE; | |
699 | ||
700 | prop = nla_nest_start(skb, TIPC_NLA_LINK_PROP); | |
701 | if (!prop) | |
702 | return -EMSGSIZE; | |
703 | ||
c3d6fb85 | 704 | __tipc_add_link_prop(skb, msg, lc); |
37e2d484 RA |
705 | nla_nest_end(skb, prop); |
706 | nla_nest_end(skb, link); | |
707 | ||
708 | return 0; | |
709 | } | |
710 | ||
c3d6fb85 RA |
711 | static int tipc_nl_compat_link_set(struct tipc_nl_compat_cmd_doit *cmd, |
712 | struct sk_buff *skb, | |
713 | struct tipc_nl_compat_msg *msg) | |
714 | { | |
715 | struct tipc_link_config *lc; | |
716 | struct tipc_bearer *bearer; | |
717 | struct tipc_media *media; | |
718 | ||
719 | lc = (struct tipc_link_config *)TLV_DATA(msg->req); | |
720 | ||
721 | media = tipc_media_find(lc->name); | |
722 | if (media) { | |
723 | cmd->doit = &tipc_nl_media_set; | |
724 | return tipc_nl_compat_media_set(skb, msg); | |
725 | } | |
726 | ||
727 | bearer = tipc_bearer_find(msg->net, lc->name); | |
728 | if (bearer) { | |
729 | cmd->doit = &tipc_nl_bearer_set; | |
730 | return tipc_nl_compat_bearer_set(skb, msg); | |
731 | } | |
732 | ||
733 | return __tipc_nl_compat_link_set(skb, msg); | |
734 | } | |
735 | ||
736 | static int tipc_nl_compat_link_reset_stats(struct tipc_nl_compat_cmd_doit *cmd, | |
737 | struct sk_buff *skb, | |
1817877b RA |
738 | struct tipc_nl_compat_msg *msg) |
739 | { | |
740 | char *name; | |
741 | struct nlattr *link; | |
742 | ||
743 | name = (char *)TLV_DATA(msg->req); | |
744 | ||
745 | link = nla_nest_start(skb, TIPC_NLA_LINK); | |
746 | if (!link) | |
747 | return -EMSGSIZE; | |
748 | ||
749 | if (nla_put_string(skb, TIPC_NLA_LINK_NAME, name)) | |
750 | return -EMSGSIZE; | |
751 | ||
752 | nla_nest_end(skb, link); | |
753 | ||
754 | return 0; | |
755 | } | |
756 | ||
44a8ae94 RA |
757 | static int tipc_nl_compat_name_table_dump_header(struct tipc_nl_compat_msg *msg) |
758 | { | |
759 | int i; | |
760 | u32 depth; | |
761 | struct tipc_name_table_query *ntq; | |
762 | static const char * const header[] = { | |
763 | "Type ", | |
764 | "Lower Upper ", | |
765 | "Port Identity ", | |
766 | "Publication Scope" | |
767 | }; | |
768 | ||
769 | ntq = (struct tipc_name_table_query *)TLV_DATA(msg->req); | |
770 | ||
771 | depth = ntohl(ntq->depth); | |
772 | ||
773 | if (depth > 4) | |
774 | depth = 4; | |
775 | for (i = 0; i < depth; i++) | |
776 | tipc_tlv_sprintf(msg->rep, header[i]); | |
777 | tipc_tlv_sprintf(msg->rep, "\n"); | |
778 | ||
779 | return 0; | |
780 | } | |
781 | ||
782 | static int tipc_nl_compat_name_table_dump(struct tipc_nl_compat_msg *msg, | |
783 | struct nlattr **attrs) | |
784 | { | |
785 | char port_str[27]; | |
786 | struct tipc_name_table_query *ntq; | |
787 | struct nlattr *nt[TIPC_NLA_NAME_TABLE_MAX + 1]; | |
788 | struct nlattr *publ[TIPC_NLA_PUBL_MAX + 1]; | |
789 | u32 node, depth, type, lowbound, upbound; | |
790 | static const char * const scope_str[] = {"", " zone", " cluster", | |
791 | " node"}; | |
297f7d2c | 792 | int err; |
44a8ae94 | 793 | |
297f7d2c BD |
794 | if (!attrs[TIPC_NLA_NAME_TABLE]) |
795 | return -EINVAL; | |
44a8ae94 | 796 | |
297f7d2c BD |
797 | err = nla_parse_nested(nt, TIPC_NLA_NAME_TABLE_MAX, |
798 | attrs[TIPC_NLA_NAME_TABLE], NULL); | |
799 | if (err) | |
800 | return err; | |
801 | ||
802 | if (!nt[TIPC_NLA_NAME_TABLE_PUBL]) | |
803 | return -EINVAL; | |
804 | ||
805 | err = nla_parse_nested(publ, TIPC_NLA_PUBL_MAX, | |
806 | nt[TIPC_NLA_NAME_TABLE_PUBL], NULL); | |
807 | if (err) | |
808 | return err; | |
44a8ae94 RA |
809 | |
810 | ntq = (struct tipc_name_table_query *)TLV_DATA(msg->req); | |
811 | ||
812 | depth = ntohl(ntq->depth); | |
813 | type = ntohl(ntq->type); | |
814 | lowbound = ntohl(ntq->lowbound); | |
815 | upbound = ntohl(ntq->upbound); | |
816 | ||
817 | if (!(depth & TIPC_NTQ_ALLTYPES) && | |
818 | (type != nla_get_u32(publ[TIPC_NLA_PUBL_TYPE]))) | |
819 | return 0; | |
820 | if (lowbound && (lowbound > nla_get_u32(publ[TIPC_NLA_PUBL_UPPER]))) | |
821 | return 0; | |
822 | if (upbound && (upbound < nla_get_u32(publ[TIPC_NLA_PUBL_LOWER]))) | |
823 | return 0; | |
824 | ||
825 | tipc_tlv_sprintf(msg->rep, "%-10u ", | |
826 | nla_get_u32(publ[TIPC_NLA_PUBL_TYPE])); | |
827 | ||
828 | if (depth == 1) | |
829 | goto out; | |
830 | ||
831 | tipc_tlv_sprintf(msg->rep, "%-10u %-10u ", | |
832 | nla_get_u32(publ[TIPC_NLA_PUBL_LOWER]), | |
833 | nla_get_u32(publ[TIPC_NLA_PUBL_UPPER])); | |
834 | ||
835 | if (depth == 2) | |
836 | goto out; | |
837 | ||
838 | node = nla_get_u32(publ[TIPC_NLA_PUBL_NODE]); | |
839 | sprintf(port_str, "<%u.%u.%u:%u>", tipc_zone(node), tipc_cluster(node), | |
840 | tipc_node(node), nla_get_u32(publ[TIPC_NLA_PUBL_REF])); | |
841 | tipc_tlv_sprintf(msg->rep, "%-26s ", port_str); | |
842 | ||
843 | if (depth == 3) | |
844 | goto out; | |
845 | ||
846 | tipc_tlv_sprintf(msg->rep, "%-10u %s", | |
03aaaa9b | 847 | nla_get_u32(publ[TIPC_NLA_PUBL_KEY]), |
44a8ae94 RA |
848 | scope_str[nla_get_u32(publ[TIPC_NLA_PUBL_SCOPE])]); |
849 | out: | |
850 | tipc_tlv_sprintf(msg->rep, "\n"); | |
851 | ||
852 | return 0; | |
853 | } | |
854 | ||
487d2a3a RA |
855 | static int __tipc_nl_compat_publ_dump(struct tipc_nl_compat_msg *msg, |
856 | struct nlattr **attrs) | |
857 | { | |
858 | u32 type, lower, upper; | |
859 | struct nlattr *publ[TIPC_NLA_PUBL_MAX + 1]; | |
297f7d2c | 860 | int err; |
487d2a3a | 861 | |
297f7d2c BD |
862 | if (!attrs[TIPC_NLA_PUBL]) |
863 | return -EINVAL; | |
864 | ||
865 | err = nla_parse_nested(publ, TIPC_NLA_PUBL_MAX, attrs[TIPC_NLA_PUBL], | |
866 | NULL); | |
867 | if (err) | |
868 | return err; | |
487d2a3a RA |
869 | |
870 | type = nla_get_u32(publ[TIPC_NLA_PUBL_TYPE]); | |
871 | lower = nla_get_u32(publ[TIPC_NLA_PUBL_LOWER]); | |
872 | upper = nla_get_u32(publ[TIPC_NLA_PUBL_UPPER]); | |
873 | ||
874 | if (lower == upper) | |
875 | tipc_tlv_sprintf(msg->rep, " {%u,%u}", type, lower); | |
876 | else | |
877 | tipc_tlv_sprintf(msg->rep, " {%u,%u,%u}", type, lower, upper); | |
878 | ||
879 | return 0; | |
880 | } | |
881 | ||
882 | static int tipc_nl_compat_publ_dump(struct tipc_nl_compat_msg *msg, u32 sock) | |
883 | { | |
884 | int err; | |
885 | void *hdr; | |
886 | struct nlattr *nest; | |
887 | struct sk_buff *args; | |
888 | struct tipc_nl_compat_cmd_dump dump; | |
889 | ||
890 | args = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
891 | if (!args) | |
892 | return -ENOMEM; | |
893 | ||
894 | hdr = genlmsg_put(args, 0, 0, &tipc_genl_family, NLM_F_MULTI, | |
895 | TIPC_NL_PUBL_GET); | |
896 | ||
897 | nest = nla_nest_start(args, TIPC_NLA_SOCK); | |
898 | if (!nest) { | |
899 | kfree_skb(args); | |
900 | return -EMSGSIZE; | |
901 | } | |
902 | ||
903 | if (nla_put_u32(args, TIPC_NLA_SOCK_REF, sock)) { | |
904 | kfree_skb(args); | |
905 | return -EMSGSIZE; | |
906 | } | |
907 | ||
908 | nla_nest_end(args, nest); | |
909 | genlmsg_end(args, hdr); | |
910 | ||
911 | dump.dumpit = tipc_nl_publ_dump; | |
912 | dump.format = __tipc_nl_compat_publ_dump; | |
913 | ||
914 | err = __tipc_nl_compat_dumpit(&dump, msg, args); | |
915 | ||
916 | kfree_skb(args); | |
917 | ||
918 | return err; | |
919 | } | |
920 | ||
921 | static int tipc_nl_compat_sk_dump(struct tipc_nl_compat_msg *msg, | |
922 | struct nlattr **attrs) | |
923 | { | |
924 | int err; | |
925 | u32 sock_ref; | |
926 | struct nlattr *sock[TIPC_NLA_SOCK_MAX + 1]; | |
927 | ||
297f7d2c BD |
928 | if (!attrs[TIPC_NLA_SOCK]) |
929 | return -EINVAL; | |
930 | ||
931 | err = nla_parse_nested(sock, TIPC_NLA_SOCK_MAX, attrs[TIPC_NLA_SOCK], | |
932 | NULL); | |
933 | if (err) | |
934 | return err; | |
487d2a3a RA |
935 | |
936 | sock_ref = nla_get_u32(sock[TIPC_NLA_SOCK_REF]); | |
937 | tipc_tlv_sprintf(msg->rep, "%u:", sock_ref); | |
938 | ||
939 | if (sock[TIPC_NLA_SOCK_CON]) { | |
940 | u32 node; | |
941 | struct nlattr *con[TIPC_NLA_CON_MAX + 1]; | |
942 | ||
943 | nla_parse_nested(con, TIPC_NLA_CON_MAX, sock[TIPC_NLA_SOCK_CON], | |
944 | NULL); | |
945 | ||
946 | node = nla_get_u32(con[TIPC_NLA_CON_NODE]); | |
947 | tipc_tlv_sprintf(msg->rep, " connected to <%u.%u.%u:%u>", | |
948 | tipc_zone(node), | |
949 | tipc_cluster(node), | |
950 | tipc_node(node), | |
951 | nla_get_u32(con[TIPC_NLA_CON_SOCK])); | |
952 | ||
953 | if (con[TIPC_NLA_CON_FLAG]) | |
954 | tipc_tlv_sprintf(msg->rep, " via {%u,%u}\n", | |
955 | nla_get_u32(con[TIPC_NLA_CON_TYPE]), | |
956 | nla_get_u32(con[TIPC_NLA_CON_INST])); | |
957 | else | |
958 | tipc_tlv_sprintf(msg->rep, "\n"); | |
959 | } else if (sock[TIPC_NLA_SOCK_HAS_PUBL]) { | |
960 | tipc_tlv_sprintf(msg->rep, " bound to"); | |
961 | ||
962 | err = tipc_nl_compat_publ_dump(msg, sock_ref); | |
963 | if (err) | |
964 | return err; | |
965 | } | |
966 | tipc_tlv_sprintf(msg->rep, "\n"); | |
967 | ||
968 | return 0; | |
969 | } | |
970 | ||
5bfc335a RA |
971 | static int tipc_nl_compat_media_dump(struct tipc_nl_compat_msg *msg, |
972 | struct nlattr **attrs) | |
973 | { | |
974 | struct nlattr *media[TIPC_NLA_MEDIA_MAX + 1]; | |
297f7d2c BD |
975 | int err; |
976 | ||
977 | if (!attrs[TIPC_NLA_MEDIA]) | |
978 | return -EINVAL; | |
5bfc335a | 979 | |
297f7d2c BD |
980 | err = nla_parse_nested(media, TIPC_NLA_MEDIA_MAX, attrs[TIPC_NLA_MEDIA], |
981 | NULL); | |
982 | if (err) | |
983 | return err; | |
5bfc335a RA |
984 | |
985 | return tipc_add_tlv(msg->rep, TIPC_TLV_MEDIA_NAME, | |
986 | nla_data(media[TIPC_NLA_MEDIA_NAME]), | |
987 | nla_len(media[TIPC_NLA_MEDIA_NAME])); | |
988 | } | |
989 | ||
4b28cb58 RA |
990 | static int tipc_nl_compat_node_dump(struct tipc_nl_compat_msg *msg, |
991 | struct nlattr **attrs) | |
992 | { | |
993 | struct tipc_node_info node_info; | |
994 | struct nlattr *node[TIPC_NLA_NODE_MAX + 1]; | |
297f7d2c | 995 | int err; |
4b28cb58 | 996 | |
297f7d2c BD |
997 | if (!attrs[TIPC_NLA_NODE]) |
998 | return -EINVAL; | |
999 | ||
1000 | err = nla_parse_nested(node, TIPC_NLA_NODE_MAX, attrs[TIPC_NLA_NODE], | |
1001 | NULL); | |
1002 | if (err) | |
1003 | return err; | |
4b28cb58 RA |
1004 | |
1005 | node_info.addr = htonl(nla_get_u32(node[TIPC_NLA_NODE_ADDR])); | |
1006 | node_info.up = htonl(nla_get_flag(node[TIPC_NLA_NODE_UP])); | |
1007 | ||
1008 | return tipc_add_tlv(msg->rep, TIPC_TLV_NODE_INFO, &node_info, | |
1009 | sizeof(node_info)); | |
1010 | } | |
1011 | ||
c3d6fb85 RA |
1012 | static int tipc_nl_compat_net_set(struct tipc_nl_compat_cmd_doit *cmd, |
1013 | struct sk_buff *skb, | |
d7cc75d3 RA |
1014 | struct tipc_nl_compat_msg *msg) |
1015 | { | |
1016 | u32 val; | |
1017 | struct nlattr *net; | |
1018 | ||
1019 | val = ntohl(*(__be32 *)TLV_DATA(msg->req)); | |
1020 | ||
1021 | net = nla_nest_start(skb, TIPC_NLA_NET); | |
1022 | if (!net) | |
1023 | return -EMSGSIZE; | |
1024 | ||
964f9501 RA |
1025 | if (msg->cmd == TIPC_CMD_SET_NODE_ADDR) { |
1026 | if (nla_put_u32(skb, TIPC_NLA_NET_ADDR, val)) | |
1027 | return -EMSGSIZE; | |
1028 | } else if (msg->cmd == TIPC_CMD_SET_NETID) { | |
1029 | if (nla_put_u32(skb, TIPC_NLA_NET_ID, val)) | |
1030 | return -EMSGSIZE; | |
1031 | } | |
d7cc75d3 RA |
1032 | nla_nest_end(skb, net); |
1033 | ||
1034 | return 0; | |
1035 | } | |
1036 | ||
3c26181c RA |
1037 | static int tipc_nl_compat_net_dump(struct tipc_nl_compat_msg *msg, |
1038 | struct nlattr **attrs) | |
1039 | { | |
1040 | __be32 id; | |
1041 | struct nlattr *net[TIPC_NLA_NET_MAX + 1]; | |
297f7d2c BD |
1042 | int err; |
1043 | ||
1044 | if (!attrs[TIPC_NLA_NET]) | |
1045 | return -EINVAL; | |
1046 | ||
1047 | err = nla_parse_nested(net, TIPC_NLA_NET_MAX, attrs[TIPC_NLA_NET], | |
1048 | NULL); | |
1049 | if (err) | |
1050 | return err; | |
3c26181c | 1051 | |
3c26181c RA |
1052 | id = htonl(nla_get_u32(net[TIPC_NLA_NET_ID])); |
1053 | ||
1054 | return tipc_add_tlv(msg->rep, TIPC_TLV_UNSIGNED, &id, sizeof(id)); | |
1055 | } | |
1056 | ||
5a81a637 RA |
1057 | static int tipc_cmd_show_stats_compat(struct tipc_nl_compat_msg *msg) |
1058 | { | |
1059 | msg->rep = tipc_tlv_alloc(ULTRA_STRING_MAX_LEN); | |
1060 | if (!msg->rep) | |
1061 | return -ENOMEM; | |
1062 | ||
1063 | tipc_tlv_init(msg->rep, TIPC_TLV_ULTRA_STRING); | |
1064 | tipc_tlv_sprintf(msg->rep, "TIPC version " TIPC_MOD_VER "\n"); | |
1065 | ||
1066 | return 0; | |
1067 | } | |
1068 | ||
d0796d1e RA |
1069 | static int tipc_nl_compat_handle(struct tipc_nl_compat_msg *msg) |
1070 | { | |
1071 | struct tipc_nl_compat_cmd_dump dump; | |
9ab15465 | 1072 | struct tipc_nl_compat_cmd_doit doit; |
d0796d1e RA |
1073 | |
1074 | memset(&dump, 0, sizeof(dump)); | |
9ab15465 | 1075 | memset(&doit, 0, sizeof(doit)); |
d0796d1e RA |
1076 | |
1077 | switch (msg->cmd) { | |
22ae7cff RA |
1078 | case TIPC_CMD_NOOP: |
1079 | msg->rep = tipc_tlv_alloc(0); | |
1080 | if (!msg->rep) | |
1081 | return -ENOMEM; | |
1082 | return 0; | |
d0796d1e RA |
1083 | case TIPC_CMD_GET_BEARER_NAMES: |
1084 | msg->rep_size = MAX_BEARERS * TLV_SPACE(TIPC_MAX_BEARER_NAME); | |
1085 | dump.dumpit = tipc_nl_bearer_dump; | |
1086 | dump.format = tipc_nl_compat_bearer_dump; | |
1087 | return tipc_nl_compat_dumpit(&dump, msg); | |
9ab15465 RA |
1088 | case TIPC_CMD_ENABLE_BEARER: |
1089 | msg->req_type = TIPC_TLV_BEARER_CONFIG; | |
1090 | doit.doit = tipc_nl_bearer_enable; | |
1091 | doit.transcode = tipc_nl_compat_bearer_enable; | |
1092 | return tipc_nl_compat_doit(&doit, msg); | |
1093 | case TIPC_CMD_DISABLE_BEARER: | |
1094 | msg->req_type = TIPC_TLV_BEARER_NAME; | |
1095 | doit.doit = tipc_nl_bearer_disable; | |
1096 | doit.transcode = tipc_nl_compat_bearer_disable; | |
1097 | return tipc_nl_compat_doit(&doit, msg); | |
f2b3b2d4 RA |
1098 | case TIPC_CMD_SHOW_LINK_STATS: |
1099 | msg->req_type = TIPC_TLV_LINK_NAME; | |
1100 | msg->rep_size = ULTRA_STRING_MAX_LEN; | |
1101 | msg->rep_type = TIPC_TLV_ULTRA_STRING; | |
38206d59 | 1102 | dump.dumpit = tipc_nl_node_dump_link; |
f2b3b2d4 RA |
1103 | dump.format = tipc_nl_compat_link_stat_dump; |
1104 | return tipc_nl_compat_dumpit(&dump, msg); | |
357ebdbf RA |
1105 | case TIPC_CMD_GET_LINKS: |
1106 | msg->req_type = TIPC_TLV_NET_ADDR; | |
1107 | msg->rep_size = ULTRA_STRING_MAX_LEN; | |
38206d59 | 1108 | dump.dumpit = tipc_nl_node_dump_link; |
357ebdbf RA |
1109 | dump.format = tipc_nl_compat_link_dump; |
1110 | return tipc_nl_compat_dumpit(&dump, msg); | |
37e2d484 RA |
1111 | case TIPC_CMD_SET_LINK_TOL: |
1112 | case TIPC_CMD_SET_LINK_PRI: | |
1113 | case TIPC_CMD_SET_LINK_WINDOW: | |
1114 | msg->req_type = TIPC_TLV_LINK_CONFIG; | |
5be9c086 | 1115 | doit.doit = tipc_nl_node_set_link; |
37e2d484 RA |
1116 | doit.transcode = tipc_nl_compat_link_set; |
1117 | return tipc_nl_compat_doit(&doit, msg); | |
1817877b RA |
1118 | case TIPC_CMD_RESET_LINK_STATS: |
1119 | msg->req_type = TIPC_TLV_LINK_NAME; | |
5be9c086 | 1120 | doit.doit = tipc_nl_node_reset_link_stats; |
1817877b RA |
1121 | doit.transcode = tipc_nl_compat_link_reset_stats; |
1122 | return tipc_nl_compat_doit(&doit, msg); | |
44a8ae94 RA |
1123 | case TIPC_CMD_SHOW_NAME_TABLE: |
1124 | msg->req_type = TIPC_TLV_NAME_TBL_QUERY; | |
1125 | msg->rep_size = ULTRA_STRING_MAX_LEN; | |
1126 | msg->rep_type = TIPC_TLV_ULTRA_STRING; | |
1127 | dump.header = tipc_nl_compat_name_table_dump_header; | |
1128 | dump.dumpit = tipc_nl_name_table_dump; | |
1129 | dump.format = tipc_nl_compat_name_table_dump; | |
1130 | return tipc_nl_compat_dumpit(&dump, msg); | |
487d2a3a RA |
1131 | case TIPC_CMD_SHOW_PORTS: |
1132 | msg->rep_size = ULTRA_STRING_MAX_LEN; | |
1133 | msg->rep_type = TIPC_TLV_ULTRA_STRING; | |
1134 | dump.dumpit = tipc_nl_sk_dump; | |
1135 | dump.format = tipc_nl_compat_sk_dump; | |
1136 | return tipc_nl_compat_dumpit(&dump, msg); | |
5bfc335a RA |
1137 | case TIPC_CMD_GET_MEDIA_NAMES: |
1138 | msg->rep_size = MAX_MEDIA * TLV_SPACE(TIPC_MAX_MEDIA_NAME); | |
1139 | dump.dumpit = tipc_nl_media_dump; | |
1140 | dump.format = tipc_nl_compat_media_dump; | |
1141 | return tipc_nl_compat_dumpit(&dump, msg); | |
4b28cb58 RA |
1142 | case TIPC_CMD_GET_NODES: |
1143 | msg->rep_size = ULTRA_STRING_MAX_LEN; | |
1144 | dump.dumpit = tipc_nl_node_dump; | |
1145 | dump.format = tipc_nl_compat_node_dump; | |
1146 | return tipc_nl_compat_dumpit(&dump, msg); | |
d7cc75d3 RA |
1147 | case TIPC_CMD_SET_NODE_ADDR: |
1148 | msg->req_type = TIPC_TLV_NET_ADDR; | |
1149 | doit.doit = tipc_nl_net_set; | |
1150 | doit.transcode = tipc_nl_compat_net_set; | |
1151 | return tipc_nl_compat_doit(&doit, msg); | |
964f9501 RA |
1152 | case TIPC_CMD_SET_NETID: |
1153 | msg->req_type = TIPC_TLV_UNSIGNED; | |
1154 | doit.doit = tipc_nl_net_set; | |
1155 | doit.transcode = tipc_nl_compat_net_set; | |
1156 | return tipc_nl_compat_doit(&doit, msg); | |
3c26181c RA |
1157 | case TIPC_CMD_GET_NETID: |
1158 | msg->rep_size = sizeof(u32); | |
1159 | dump.dumpit = tipc_nl_net_dump; | |
1160 | dump.format = tipc_nl_compat_net_dump; | |
1161 | return tipc_nl_compat_dumpit(&dump, msg); | |
5a81a637 RA |
1162 | case TIPC_CMD_SHOW_STATS: |
1163 | return tipc_cmd_show_stats_compat(msg); | |
d0796d1e RA |
1164 | } |
1165 | ||
1166 | return -EOPNOTSUPP; | |
1167 | } | |
1168 | ||
1169 | static int tipc_nl_compat_recv(struct sk_buff *skb, struct genl_info *info) | |
1170 | { | |
1171 | int err; | |
1172 | int len; | |
1173 | struct tipc_nl_compat_msg msg; | |
1174 | struct nlmsghdr *req_nlh; | |
1175 | struct nlmsghdr *rep_nlh; | |
1176 | struct tipc_genlmsghdr *req_userhdr = info->userhdr; | |
d0796d1e RA |
1177 | |
1178 | memset(&msg, 0, sizeof(msg)); | |
1179 | ||
1180 | req_nlh = (struct nlmsghdr *)skb->data; | |
1181 | msg.req = nlmsg_data(req_nlh) + GENL_HDRLEN + TIPC_GENL_HDRLEN; | |
1182 | msg.cmd = req_userhdr->cmd; | |
c3d6fb85 | 1183 | msg.net = genl_info_net(info); |
619b1745 | 1184 | msg.dst_sk = skb->sk; |
d0796d1e RA |
1185 | |
1186 | if ((msg.cmd & 0xC000) && (!netlink_net_capable(skb, CAP_NET_ADMIN))) { | |
1187 | msg.rep = tipc_get_err_tlv(TIPC_CFG_NOT_NET_ADMIN); | |
1188 | err = -EACCES; | |
1189 | goto send; | |
1190 | } | |
1191 | ||
1192 | len = nlmsg_attrlen(req_nlh, GENL_HDRLEN + TIPC_GENL_HDRLEN); | |
8f8ff913 | 1193 | if (len && !TLV_OK(msg.req, len)) { |
d0796d1e RA |
1194 | msg.rep = tipc_get_err_tlv(TIPC_CFG_NOT_SUPPORTED); |
1195 | err = -EOPNOTSUPP; | |
1196 | goto send; | |
1197 | } | |
1198 | ||
1199 | err = tipc_nl_compat_handle(&msg); | |
b063bc5e | 1200 | if ((err == -EOPNOTSUPP) || (err == -EPERM)) |
d0796d1e RA |
1201 | msg.rep = tipc_get_err_tlv(TIPC_CFG_NOT_SUPPORTED); |
1202 | else if (err == -EINVAL) | |
1203 | msg.rep = tipc_get_err_tlv(TIPC_CFG_TLV_ERROR); | |
1204 | send: | |
1205 | if (!msg.rep) | |
1206 | return err; | |
1207 | ||
1208 | len = nlmsg_total_size(GENL_HDRLEN + TIPC_GENL_HDRLEN); | |
1209 | skb_push(msg.rep, len); | |
1210 | rep_nlh = nlmsg_hdr(msg.rep); | |
1211 | memcpy(rep_nlh, info->nlhdr, len); | |
1212 | rep_nlh->nlmsg_len = msg.rep->len; | |
c3d6fb85 | 1213 | genlmsg_unicast(msg.net, msg.rep, NETLINK_CB(skb).portid); |
d0796d1e RA |
1214 | |
1215 | return err; | |
1216 | } | |
1217 | ||
bfb3e5dd RA |
1218 | static struct genl_family tipc_genl_compat_family = { |
1219 | .id = GENL_ID_GENERATE, | |
1220 | .name = TIPC_GENL_NAME, | |
1221 | .version = TIPC_GENL_VERSION, | |
1222 | .hdrsize = TIPC_GENL_HDRLEN, | |
1223 | .maxattr = 0, | |
1224 | .netnsok = true, | |
1225 | }; | |
1226 | ||
1227 | static struct genl_ops tipc_genl_compat_ops[] = { | |
1228 | { | |
1229 | .cmd = TIPC_GENL_CMD, | |
22ae7cff | 1230 | .doit = tipc_nl_compat_recv, |
bfb3e5dd RA |
1231 | }, |
1232 | }; | |
1233 | ||
1234 | int tipc_netlink_compat_start(void) | |
1235 | { | |
1236 | int res; | |
1237 | ||
1238 | res = genl_register_family_with_ops(&tipc_genl_compat_family, | |
1239 | tipc_genl_compat_ops); | |
1240 | if (res) { | |
1241 | pr_err("Failed to register legacy compat interface\n"); | |
1242 | return res; | |
1243 | } | |
1244 | ||
1245 | return 0; | |
1246 | } | |
1247 | ||
1248 | void tipc_netlink_compat_stop(void) | |
1249 | { | |
1250 | genl_unregister_family(&tipc_genl_compat_family); | |
1251 | } |