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