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; |
4da5f001 | 58 | int req_size; |
c3d6fb85 | 59 | struct net *net; |
d0796d1e RA |
60 | struct sk_buff *rep; |
61 | struct tlv_desc *req; | |
62 | struct sock *dst_sk; | |
63 | }; | |
64 | ||
65 | struct tipc_nl_compat_cmd_dump { | |
44a8ae94 | 66 | int (*header)(struct tipc_nl_compat_msg *); |
d0796d1e RA |
67 | int (*dumpit)(struct sk_buff *, struct netlink_callback *); |
68 | int (*format)(struct tipc_nl_compat_msg *msg, struct nlattr **attrs); | |
69 | }; | |
70 | ||
9ab15465 RA |
71 | struct tipc_nl_compat_cmd_doit { |
72 | int (*doit)(struct sk_buff *skb, struct genl_info *info); | |
c3d6fb85 RA |
73 | int (*transcode)(struct tipc_nl_compat_cmd_doit *cmd, |
74 | struct sk_buff *skb, struct tipc_nl_compat_msg *msg); | |
9ab15465 RA |
75 | }; |
76 | ||
d0796d1e RA |
77 | static int tipc_skb_tailroom(struct sk_buff *skb) |
78 | { | |
79 | int tailroom; | |
80 | int limit; | |
81 | ||
82 | tailroom = skb_tailroom(skb); | |
83 | limit = TIPC_SKB_MAX - skb->len; | |
84 | ||
85 | if (tailroom < limit) | |
86 | return tailroom; | |
87 | ||
88 | return limit; | |
89 | } | |
90 | ||
8b66fee7 YX |
91 | static inline int TLV_GET_DATA_LEN(struct tlv_desc *tlv) |
92 | { | |
93 | return TLV_GET_LEN(tlv) - TLV_SPACE(0); | |
94 | } | |
95 | ||
d0796d1e RA |
96 | static int tipc_add_tlv(struct sk_buff *skb, u16 type, void *data, u16 len) |
97 | { | |
98 | struct tlv_desc *tlv = (struct tlv_desc *)skb_tail_pointer(skb); | |
99 | ||
100 | if (tipc_skb_tailroom(skb) < TLV_SPACE(len)) | |
101 | return -EMSGSIZE; | |
102 | ||
103 | skb_put(skb, TLV_SPACE(len)); | |
104 | tlv->tlv_type = htons(type); | |
105 | tlv->tlv_len = htons(TLV_LENGTH(len)); | |
106 | if (len && data) | |
107 | memcpy(TLV_DATA(tlv), data, len); | |
108 | ||
109 | return 0; | |
110 | } | |
111 | ||
f2b3b2d4 RA |
112 | static void tipc_tlv_init(struct sk_buff *skb, u16 type) |
113 | { | |
114 | struct tlv_desc *tlv = (struct tlv_desc *)skb->data; | |
115 | ||
116 | TLV_SET_LEN(tlv, 0); | |
117 | TLV_SET_TYPE(tlv, type); | |
118 | skb_put(skb, sizeof(struct tlv_desc)); | |
119 | } | |
120 | ||
121 | static int tipc_tlv_sprintf(struct sk_buff *skb, const char *fmt, ...) | |
122 | { | |
123 | int n; | |
124 | u16 len; | |
125 | u32 rem; | |
126 | char *buf; | |
127 | struct tlv_desc *tlv; | |
128 | va_list args; | |
129 | ||
130 | rem = tipc_skb_tailroom(skb); | |
131 | ||
132 | tlv = (struct tlv_desc *)skb->data; | |
133 | len = TLV_GET_LEN(tlv); | |
134 | buf = TLV_DATA(tlv) + len; | |
135 | ||
136 | va_start(args, fmt); | |
137 | n = vscnprintf(buf, rem, fmt, args); | |
138 | va_end(args); | |
139 | ||
140 | TLV_SET_LEN(tlv, n + len); | |
141 | skb_put(skb, n); | |
142 | ||
143 | return n; | |
144 | } | |
145 | ||
d0796d1e RA |
146 | static struct sk_buff *tipc_tlv_alloc(int size) |
147 | { | |
148 | int hdr_len; | |
149 | struct sk_buff *buf; | |
150 | ||
151 | size = TLV_SPACE(size); | |
152 | hdr_len = nlmsg_total_size(GENL_HDRLEN + TIPC_GENL_HDRLEN); | |
153 | ||
154 | buf = alloc_skb(hdr_len + size, GFP_KERNEL); | |
155 | if (!buf) | |
156 | return NULL; | |
157 | ||
158 | skb_reserve(buf, hdr_len); | |
159 | ||
160 | return buf; | |
161 | } | |
162 | ||
163 | static struct sk_buff *tipc_get_err_tlv(char *str) | |
164 | { | |
165 | int str_len = strlen(str) + 1; | |
166 | struct sk_buff *buf; | |
167 | ||
168 | buf = tipc_tlv_alloc(TLV_SPACE(str_len)); | |
169 | if (buf) | |
170 | tipc_add_tlv(buf, TIPC_TLV_ERROR_STRING, str, str_len); | |
171 | ||
172 | return buf; | |
173 | } | |
174 | ||
8b66fee7 YX |
175 | static inline bool string_is_valid(char *s, int len) |
176 | { | |
177 | return memchr(s, '\0', len) ? true : false; | |
178 | } | |
179 | ||
d0796d1e RA |
180 | static int __tipc_nl_compat_dumpit(struct tipc_nl_compat_cmd_dump *cmd, |
181 | struct tipc_nl_compat_msg *msg, | |
182 | struct sk_buff *arg) | |
183 | { | |
184 | int len = 0; | |
185 | int err; | |
186 | struct sk_buff *buf; | |
187 | struct nlmsghdr *nlmsg; | |
188 | struct netlink_callback cb; | |
189 | ||
190 | memset(&cb, 0, sizeof(cb)); | |
191 | cb.nlh = (struct nlmsghdr *)arg->data; | |
192 | cb.skb = arg; | |
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 RA |
203 | |
204 | do { | |
205 | int rem; | |
206 | ||
207 | len = (*cmd->dumpit)(buf, &cb); | |
208 | ||
209 | nlmsg_for_each_msg(nlmsg, nlmsg_hdr(buf), len, rem) { | |
210 | struct nlattr **attrs; | |
211 | ||
212 | err = tipc_nlmsg_parse(nlmsg, &attrs); | |
213 | if (err) | |
214 | goto err_out; | |
215 | ||
216 | err = (*cmd->format)(msg, attrs); | |
217 | if (err) | |
218 | goto err_out; | |
219 | ||
220 | if (tipc_skb_tailroom(msg->rep) <= 1) { | |
221 | err = -EMSGSIZE; | |
222 | goto err_out; | |
223 | } | |
224 | } | |
225 | ||
226 | skb_reset_tail_pointer(buf); | |
227 | buf->len = 0; | |
228 | ||
229 | } while (len); | |
230 | ||
231 | err = 0; | |
232 | ||
233 | err_out: | |
8f5c5fcf | 234 | tipc_dump_done(&cb); |
d0796d1e RA |
235 | kfree_skb(buf); |
236 | ||
237 | if (err == -EMSGSIZE) { | |
238 | /* The legacy API only considered messages filling | |
239 | * "ULTRA_STRING_MAX_LEN" to be truncated. | |
240 | */ | |
241 | if ((TIPC_SKB_MAX - msg->rep->len) <= 1) { | |
242 | char *tail = skb_tail_pointer(msg->rep); | |
243 | ||
244 | if (*tail != '\0') | |
245 | sprintf(tail - sizeof(REPLY_TRUNCATED) - 1, | |
246 | REPLY_TRUNCATED); | |
247 | } | |
248 | ||
249 | return 0; | |
250 | } | |
251 | ||
252 | return err; | |
253 | } | |
254 | ||
255 | static int tipc_nl_compat_dumpit(struct tipc_nl_compat_cmd_dump *cmd, | |
256 | struct tipc_nl_compat_msg *msg) | |
257 | { | |
258 | int err; | |
259 | struct sk_buff *arg; | |
260 | ||
4da5f001 TK |
261 | if (msg->req_type && (!msg->req_size || |
262 | !TLV_CHECK_TYPE(msg->req, msg->req_type))) | |
f2b3b2d4 RA |
263 | return -EINVAL; |
264 | ||
d0796d1e RA |
265 | msg->rep = tipc_tlv_alloc(msg->rep_size); |
266 | if (!msg->rep) | |
267 | return -ENOMEM; | |
268 | ||
f2b3b2d4 RA |
269 | if (msg->rep_type) |
270 | tipc_tlv_init(msg->rep, msg->rep_type); | |
271 | ||
2ac695d1 XL |
272 | if (cmd->header) { |
273 | err = (*cmd->header)(msg); | |
274 | if (err) { | |
275 | kfree_skb(msg->rep); | |
276 | msg->rep = NULL; | |
277 | return err; | |
278 | } | |
279 | } | |
44a8ae94 | 280 | |
d0796d1e RA |
281 | arg = nlmsg_new(0, GFP_KERNEL); |
282 | if (!arg) { | |
283 | kfree_skb(msg->rep); | |
5bfd37b4 | 284 | msg->rep = NULL; |
d0796d1e RA |
285 | return -ENOMEM; |
286 | } | |
287 | ||
288 | err = __tipc_nl_compat_dumpit(cmd, msg, arg); | |
5bfd37b4 | 289 | if (err) { |
d0796d1e | 290 | kfree_skb(msg->rep); |
5bfd37b4 ED |
291 | msg->rep = NULL; |
292 | } | |
d0796d1e RA |
293 | kfree_skb(arg); |
294 | ||
295 | return err; | |
296 | } | |
297 | ||
9ab15465 RA |
298 | static int __tipc_nl_compat_doit(struct tipc_nl_compat_cmd_doit *cmd, |
299 | struct tipc_nl_compat_msg *msg) | |
300 | { | |
301 | int err; | |
302 | struct sk_buff *doit_buf; | |
303 | struct sk_buff *trans_buf; | |
304 | struct nlattr **attrbuf; | |
305 | struct genl_info info; | |
306 | ||
307 | trans_buf = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL); | |
308 | if (!trans_buf) | |
309 | return -ENOMEM; | |
310 | ||
6da2ec56 KC |
311 | attrbuf = kmalloc_array(tipc_genl_family.maxattr + 1, |
312 | sizeof(struct nlattr *), | |
313 | GFP_KERNEL); | |
9ab15465 RA |
314 | if (!attrbuf) { |
315 | err = -ENOMEM; | |
316 | goto trans_out; | |
317 | } | |
318 | ||
9ab15465 RA |
319 | doit_buf = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL); |
320 | if (!doit_buf) { | |
321 | err = -ENOMEM; | |
e5d1a1ee | 322 | goto attrbuf_out; |
9ab15465 RA |
323 | } |
324 | ||
9ab15465 RA |
325 | memset(&info, 0, sizeof(info)); |
326 | info.attrs = attrbuf; | |
327 | ||
ed4ffdfe | 328 | rtnl_lock(); |
e5d1a1ee YX |
329 | err = (*cmd->transcode)(cmd, trans_buf, msg); |
330 | if (err) | |
331 | goto doit_out; | |
332 | ||
8cb08174 JB |
333 | err = nla_parse_deprecated(attrbuf, tipc_genl_family.maxattr, |
334 | (const struct nlattr *)trans_buf->data, | |
335 | trans_buf->len, NULL, NULL); | |
e5d1a1ee YX |
336 | if (err) |
337 | goto doit_out; | |
338 | ||
339 | doit_buf->sk = msg->dst_sk; | |
340 | ||
9ab15465 | 341 | err = (*cmd->doit)(doit_buf, &info); |
e5d1a1ee | 342 | doit_out: |
ed4ffdfe | 343 | rtnl_unlock(); |
9ab15465 RA |
344 | |
345 | kfree_skb(doit_buf); | |
e5d1a1ee | 346 | attrbuf_out: |
9ab15465 RA |
347 | kfree(attrbuf); |
348 | trans_out: | |
349 | kfree_skb(trans_buf); | |
350 | ||
351 | return err; | |
352 | } | |
353 | ||
354 | static int tipc_nl_compat_doit(struct tipc_nl_compat_cmd_doit *cmd, | |
355 | struct tipc_nl_compat_msg *msg) | |
356 | { | |
357 | int err; | |
358 | ||
4da5f001 TK |
359 | if (msg->req_type && (!msg->req_size || |
360 | !TLV_CHECK_TYPE(msg->req, msg->req_type))) | |
9ab15465 RA |
361 | return -EINVAL; |
362 | ||
363 | err = __tipc_nl_compat_doit(cmd, msg); | |
364 | if (err) | |
365 | return err; | |
366 | ||
367 | /* The legacy API considered an empty message a success message */ | |
368 | msg->rep = tipc_tlv_alloc(0); | |
369 | if (!msg->rep) | |
370 | return -ENOMEM; | |
371 | ||
372 | return 0; | |
373 | } | |
374 | ||
d0796d1e RA |
375 | static int tipc_nl_compat_bearer_dump(struct tipc_nl_compat_msg *msg, |
376 | struct nlattr **attrs) | |
377 | { | |
378 | struct nlattr *bearer[TIPC_NLA_BEARER_MAX + 1]; | |
297f7d2c BD |
379 | int err; |
380 | ||
381 | if (!attrs[TIPC_NLA_BEARER]) | |
382 | return -EINVAL; | |
d0796d1e | 383 | |
8cb08174 JB |
384 | err = nla_parse_nested_deprecated(bearer, TIPC_NLA_BEARER_MAX, |
385 | attrs[TIPC_NLA_BEARER], NULL, NULL); | |
297f7d2c BD |
386 | if (err) |
387 | return err; | |
d0796d1e RA |
388 | |
389 | return tipc_add_tlv(msg->rep, TIPC_TLV_BEARER_NAME, | |
390 | nla_data(bearer[TIPC_NLA_BEARER_NAME]), | |
391 | nla_len(bearer[TIPC_NLA_BEARER_NAME])); | |
392 | } | |
393 | ||
c3d6fb85 RA |
394 | static int tipc_nl_compat_bearer_enable(struct tipc_nl_compat_cmd_doit *cmd, |
395 | struct sk_buff *skb, | |
9ab15465 RA |
396 | struct tipc_nl_compat_msg *msg) |
397 | { | |
398 | struct nlattr *prop; | |
399 | struct nlattr *bearer; | |
400 | struct tipc_bearer_config *b; | |
0762216c | 401 | int len; |
9ab15465 RA |
402 | |
403 | b = (struct tipc_bearer_config *)TLV_DATA(msg->req); | |
404 | ||
ae0be8de | 405 | bearer = nla_nest_start_noflag(skb, TIPC_NLA_BEARER); |
9ab15465 RA |
406 | if (!bearer) |
407 | return -EMSGSIZE; | |
408 | ||
6f07e5f0 XL |
409 | len = TLV_GET_DATA_LEN(msg->req); |
410 | len -= offsetof(struct tipc_bearer_config, name); | |
411 | if (len <= 0) | |
412 | return -EINVAL; | |
413 | ||
414 | len = min_t(int, len, TIPC_MAX_BEARER_NAME); | |
0762216c YX |
415 | if (!string_is_valid(b->name, len)) |
416 | return -EINVAL; | |
417 | ||
9ab15465 RA |
418 | if (nla_put_string(skb, TIPC_NLA_BEARER_NAME, b->name)) |
419 | return -EMSGSIZE; | |
420 | ||
421 | if (nla_put_u32(skb, TIPC_NLA_BEARER_DOMAIN, ntohl(b->disc_domain))) | |
422 | return -EMSGSIZE; | |
423 | ||
424 | if (ntohl(b->priority) <= TIPC_MAX_LINK_PRI) { | |
ae0be8de | 425 | prop = nla_nest_start_noflag(skb, TIPC_NLA_BEARER_PROP); |
9ab15465 RA |
426 | if (!prop) |
427 | return -EMSGSIZE; | |
428 | if (nla_put_u32(skb, TIPC_NLA_PROP_PRIO, ntohl(b->priority))) | |
429 | return -EMSGSIZE; | |
430 | nla_nest_end(skb, prop); | |
431 | } | |
432 | nla_nest_end(skb, bearer); | |
433 | ||
434 | return 0; | |
435 | } | |
436 | ||
c3d6fb85 RA |
437 | static int tipc_nl_compat_bearer_disable(struct tipc_nl_compat_cmd_doit *cmd, |
438 | struct sk_buff *skb, | |
9ab15465 RA |
439 | struct tipc_nl_compat_msg *msg) |
440 | { | |
441 | char *name; | |
442 | struct nlattr *bearer; | |
0762216c | 443 | int len; |
9ab15465 RA |
444 | |
445 | name = (char *)TLV_DATA(msg->req); | |
446 | ||
ae0be8de | 447 | bearer = nla_nest_start_noflag(skb, TIPC_NLA_BEARER); |
9ab15465 RA |
448 | if (!bearer) |
449 | return -EMSGSIZE; | |
450 | ||
4f07b80c XL |
451 | len = TLV_GET_DATA_LEN(msg->req); |
452 | if (len <= 0) | |
453 | return -EINVAL; | |
454 | ||
455 | len = min_t(int, len, TIPC_MAX_BEARER_NAME); | |
0762216c YX |
456 | if (!string_is_valid(name, len)) |
457 | return -EINVAL; | |
458 | ||
9ab15465 RA |
459 | if (nla_put_string(skb, TIPC_NLA_BEARER_NAME, name)) |
460 | return -EMSGSIZE; | |
461 | ||
462 | nla_nest_end(skb, bearer); | |
463 | ||
464 | return 0; | |
465 | } | |
466 | ||
f2b3b2d4 RA |
467 | static inline u32 perc(u32 count, u32 total) |
468 | { | |
469 | return (count * 100 + (total / 2)) / total; | |
470 | } | |
471 | ||
472 | static void __fill_bc_link_stat(struct tipc_nl_compat_msg *msg, | |
473 | struct nlattr *prop[], struct nlattr *stats[]) | |
474 | { | |
475 | tipc_tlv_sprintf(msg->rep, " Window:%u packets\n", | |
476 | nla_get_u32(prop[TIPC_NLA_PROP_WIN])); | |
477 | ||
478 | tipc_tlv_sprintf(msg->rep, | |
479 | " RX packets:%u fragments:%u/%u bundles:%u/%u\n", | |
480 | nla_get_u32(stats[TIPC_NLA_STATS_RX_INFO]), | |
481 | nla_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTS]), | |
482 | nla_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTED]), | |
483 | nla_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLES]), | |
484 | nla_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLED])); | |
485 | ||
486 | tipc_tlv_sprintf(msg->rep, | |
487 | " TX packets:%u fragments:%u/%u bundles:%u/%u\n", | |
488 | nla_get_u32(stats[TIPC_NLA_STATS_TX_INFO]), | |
489 | nla_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTS]), | |
490 | nla_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTED]), | |
491 | nla_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLES]), | |
492 | nla_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLED])); | |
493 | ||
494 | tipc_tlv_sprintf(msg->rep, " RX naks:%u defs:%u dups:%u\n", | |
495 | nla_get_u32(stats[TIPC_NLA_STATS_RX_NACKS]), | |
496 | nla_get_u32(stats[TIPC_NLA_STATS_RX_DEFERRED]), | |
497 | nla_get_u32(stats[TIPC_NLA_STATS_DUPLICATES])); | |
498 | ||
499 | tipc_tlv_sprintf(msg->rep, " TX naks:%u acks:%u dups:%u\n", | |
500 | nla_get_u32(stats[TIPC_NLA_STATS_TX_NACKS]), | |
501 | nla_get_u32(stats[TIPC_NLA_STATS_TX_ACKS]), | |
502 | nla_get_u32(stats[TIPC_NLA_STATS_RETRANSMITTED])); | |
503 | ||
504 | tipc_tlv_sprintf(msg->rep, | |
505 | " Congestion link:%u Send queue max:%u avg:%u", | |
506 | nla_get_u32(stats[TIPC_NLA_STATS_LINK_CONGS]), | |
507 | nla_get_u32(stats[TIPC_NLA_STATS_MAX_QUEUE]), | |
508 | nla_get_u32(stats[TIPC_NLA_STATS_AVG_QUEUE])); | |
509 | } | |
510 | ||
511 | static int tipc_nl_compat_link_stat_dump(struct tipc_nl_compat_msg *msg, | |
512 | struct nlattr **attrs) | |
513 | { | |
514 | char *name; | |
515 | struct nlattr *link[TIPC_NLA_LINK_MAX + 1]; | |
516 | struct nlattr *prop[TIPC_NLA_PROP_MAX + 1]; | |
517 | struct nlattr *stats[TIPC_NLA_STATS_MAX + 1]; | |
297f7d2c | 518 | int err; |
0762216c | 519 | int len; |
f2b3b2d4 | 520 | |
297f7d2c BD |
521 | if (!attrs[TIPC_NLA_LINK]) |
522 | return -EINVAL; | |
f2b3b2d4 | 523 | |
8cb08174 JB |
524 | err = nla_parse_nested_deprecated(link, TIPC_NLA_LINK_MAX, |
525 | attrs[TIPC_NLA_LINK], NULL, NULL); | |
297f7d2c BD |
526 | if (err) |
527 | return err; | |
528 | ||
529 | if (!link[TIPC_NLA_LINK_PROP]) | |
530 | return -EINVAL; | |
f2b3b2d4 | 531 | |
8cb08174 JB |
532 | err = nla_parse_nested_deprecated(prop, TIPC_NLA_PROP_MAX, |
533 | link[TIPC_NLA_LINK_PROP], NULL, | |
534 | NULL); | |
297f7d2c BD |
535 | if (err) |
536 | return err; | |
537 | ||
538 | if (!link[TIPC_NLA_LINK_STATS]) | |
539 | return -EINVAL; | |
540 | ||
8cb08174 JB |
541 | err = nla_parse_nested_deprecated(stats, TIPC_NLA_STATS_MAX, |
542 | link[TIPC_NLA_LINK_STATS], NULL, | |
543 | NULL); | |
297f7d2c BD |
544 | if (err) |
545 | return err; | |
f2b3b2d4 RA |
546 | |
547 | name = (char *)TLV_DATA(msg->req); | |
0762216c | 548 | |
4f07b80c XL |
549 | len = TLV_GET_DATA_LEN(msg->req); |
550 | if (len <= 0) | |
551 | return -EINVAL; | |
552 | ||
553 | len = min_t(int, len, TIPC_MAX_BEARER_NAME); | |
0762216c YX |
554 | if (!string_is_valid(name, len)) |
555 | return -EINVAL; | |
556 | ||
f2b3b2d4 RA |
557 | if (strcmp(name, nla_data(link[TIPC_NLA_LINK_NAME])) != 0) |
558 | return 0; | |
559 | ||
560 | tipc_tlv_sprintf(msg->rep, "\nLink <%s>\n", | |
561 | nla_data(link[TIPC_NLA_LINK_NAME])); | |
562 | ||
563 | if (link[TIPC_NLA_LINK_BROADCAST]) { | |
564 | __fill_bc_link_stat(msg, prop, stats); | |
565 | return 0; | |
566 | } | |
567 | ||
568 | if (link[TIPC_NLA_LINK_ACTIVE]) | |
569 | tipc_tlv_sprintf(msg->rep, " ACTIVE"); | |
570 | else if (link[TIPC_NLA_LINK_UP]) | |
571 | tipc_tlv_sprintf(msg->rep, " STANDBY"); | |
572 | else | |
573 | tipc_tlv_sprintf(msg->rep, " DEFUNCT"); | |
574 | ||
575 | tipc_tlv_sprintf(msg->rep, " MTU:%u Priority:%u", | |
576 | nla_get_u32(link[TIPC_NLA_LINK_MTU]), | |
577 | nla_get_u32(prop[TIPC_NLA_PROP_PRIO])); | |
578 | ||
579 | tipc_tlv_sprintf(msg->rep, " Tolerance:%u ms Window:%u packets\n", | |
580 | nla_get_u32(prop[TIPC_NLA_PROP_TOL]), | |
581 | nla_get_u32(prop[TIPC_NLA_PROP_WIN])); | |
582 | ||
583 | tipc_tlv_sprintf(msg->rep, | |
584 | " RX packets:%u fragments:%u/%u bundles:%u/%u\n", | |
585 | nla_get_u32(link[TIPC_NLA_LINK_RX]) - | |
586 | nla_get_u32(stats[TIPC_NLA_STATS_RX_INFO]), | |
587 | nla_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTS]), | |
588 | nla_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTED]), | |
589 | nla_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLES]), | |
590 | nla_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLED])); | |
591 | ||
592 | tipc_tlv_sprintf(msg->rep, | |
593 | " TX packets:%u fragments:%u/%u bundles:%u/%u\n", | |
594 | nla_get_u32(link[TIPC_NLA_LINK_TX]) - | |
595 | nla_get_u32(stats[TIPC_NLA_STATS_TX_INFO]), | |
596 | nla_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTS]), | |
597 | nla_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTED]), | |
598 | nla_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLES]), | |
599 | nla_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLED])); | |
600 | ||
601 | tipc_tlv_sprintf(msg->rep, | |
602 | " TX profile sample:%u packets average:%u octets\n", | |
603 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_CNT]), | |
604 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_TOT]) / | |
605 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])); | |
606 | ||
607 | tipc_tlv_sprintf(msg->rep, | |
608 | " 0-64:%u%% -256:%u%% -1024:%u%% -4096:%u%% ", | |
609 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P0]), | |
610 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])), | |
611 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P1]), | |
612 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])), | |
613 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P2]), | |
614 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])), | |
615 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P3]), | |
616 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT]))); | |
617 | ||
618 | tipc_tlv_sprintf(msg->rep, "-16384:%u%% -32768:%u%% -66000:%u%%\n", | |
619 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P4]), | |
620 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])), | |
621 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P5]), | |
622 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])), | |
623 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P6]), | |
624 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT]))); | |
625 | ||
626 | tipc_tlv_sprintf(msg->rep, | |
627 | " RX states:%u probes:%u naks:%u defs:%u dups:%u\n", | |
628 | nla_get_u32(stats[TIPC_NLA_STATS_RX_STATES]), | |
629 | nla_get_u32(stats[TIPC_NLA_STATS_RX_PROBES]), | |
630 | nla_get_u32(stats[TIPC_NLA_STATS_RX_NACKS]), | |
631 | nla_get_u32(stats[TIPC_NLA_STATS_RX_DEFERRED]), | |
632 | nla_get_u32(stats[TIPC_NLA_STATS_DUPLICATES])); | |
633 | ||
634 | tipc_tlv_sprintf(msg->rep, | |
635 | " TX states:%u probes:%u naks:%u acks:%u dups:%u\n", | |
636 | nla_get_u32(stats[TIPC_NLA_STATS_TX_STATES]), | |
637 | nla_get_u32(stats[TIPC_NLA_STATS_TX_PROBES]), | |
638 | nla_get_u32(stats[TIPC_NLA_STATS_TX_NACKS]), | |
639 | nla_get_u32(stats[TIPC_NLA_STATS_TX_ACKS]), | |
640 | nla_get_u32(stats[TIPC_NLA_STATS_RETRANSMITTED])); | |
641 | ||
642 | tipc_tlv_sprintf(msg->rep, | |
643 | " Congestion link:%u Send queue max:%u avg:%u", | |
644 | nla_get_u32(stats[TIPC_NLA_STATS_LINK_CONGS]), | |
645 | nla_get_u32(stats[TIPC_NLA_STATS_MAX_QUEUE]), | |
646 | nla_get_u32(stats[TIPC_NLA_STATS_AVG_QUEUE])); | |
647 | ||
648 | return 0; | |
649 | } | |
650 | ||
357ebdbf RA |
651 | static int tipc_nl_compat_link_dump(struct tipc_nl_compat_msg *msg, |
652 | struct nlattr **attrs) | |
653 | { | |
654 | struct nlattr *link[TIPC_NLA_LINK_MAX + 1]; | |
655 | struct tipc_link_info link_info; | |
297f7d2c | 656 | int err; |
357ebdbf | 657 | |
297f7d2c BD |
658 | if (!attrs[TIPC_NLA_LINK]) |
659 | return -EINVAL; | |
660 | ||
8cb08174 JB |
661 | err = nla_parse_nested_deprecated(link, TIPC_NLA_LINK_MAX, |
662 | attrs[TIPC_NLA_LINK], NULL, NULL); | |
297f7d2c BD |
663 | if (err) |
664 | return err; | |
357ebdbf RA |
665 | |
666 | link_info.dest = nla_get_flag(link[TIPC_NLA_LINK_DEST]); | |
667 | link_info.up = htonl(nla_get_flag(link[TIPC_NLA_LINK_UP])); | |
55e77a3e | 668 | nla_strlcpy(link_info.str, link[TIPC_NLA_LINK_NAME], |
5d2be142 | 669 | TIPC_MAX_LINK_NAME); |
357ebdbf RA |
670 | |
671 | return tipc_add_tlv(msg->rep, TIPC_TLV_LINK_INFO, | |
672 | &link_info, sizeof(link_info)); | |
673 | } | |
674 | ||
c3d6fb85 RA |
675 | static int __tipc_add_link_prop(struct sk_buff *skb, |
676 | struct tipc_nl_compat_msg *msg, | |
677 | struct tipc_link_config *lc) | |
678 | { | |
679 | switch (msg->cmd) { | |
680 | case TIPC_CMD_SET_LINK_PRI: | |
681 | return nla_put_u32(skb, TIPC_NLA_PROP_PRIO, ntohl(lc->value)); | |
682 | case TIPC_CMD_SET_LINK_TOL: | |
683 | return nla_put_u32(skb, TIPC_NLA_PROP_TOL, ntohl(lc->value)); | |
684 | case TIPC_CMD_SET_LINK_WINDOW: | |
685 | return nla_put_u32(skb, TIPC_NLA_PROP_WIN, ntohl(lc->value)); | |
686 | } | |
687 | ||
688 | return -EINVAL; | |
689 | } | |
690 | ||
691 | static int tipc_nl_compat_media_set(struct sk_buff *skb, | |
692 | struct tipc_nl_compat_msg *msg) | |
37e2d484 | 693 | { |
37e2d484 | 694 | struct nlattr *prop; |
c3d6fb85 RA |
695 | struct nlattr *media; |
696 | struct tipc_link_config *lc; | |
697 | ||
698 | lc = (struct tipc_link_config *)TLV_DATA(msg->req); | |
699 | ||
ae0be8de | 700 | media = nla_nest_start_noflag(skb, TIPC_NLA_MEDIA); |
c3d6fb85 RA |
701 | if (!media) |
702 | return -EMSGSIZE; | |
703 | ||
704 | if (nla_put_string(skb, TIPC_NLA_MEDIA_NAME, lc->name)) | |
705 | return -EMSGSIZE; | |
706 | ||
ae0be8de | 707 | prop = nla_nest_start_noflag(skb, TIPC_NLA_MEDIA_PROP); |
c3d6fb85 RA |
708 | if (!prop) |
709 | return -EMSGSIZE; | |
710 | ||
711 | __tipc_add_link_prop(skb, msg, lc); | |
712 | nla_nest_end(skb, prop); | |
713 | nla_nest_end(skb, media); | |
714 | ||
715 | return 0; | |
716 | } | |
717 | ||
718 | static int tipc_nl_compat_bearer_set(struct sk_buff *skb, | |
719 | struct tipc_nl_compat_msg *msg) | |
720 | { | |
721 | struct nlattr *prop; | |
722 | struct nlattr *bearer; | |
723 | struct tipc_link_config *lc; | |
724 | ||
725 | lc = (struct tipc_link_config *)TLV_DATA(msg->req); | |
726 | ||
ae0be8de | 727 | bearer = nla_nest_start_noflag(skb, TIPC_NLA_BEARER); |
c3d6fb85 RA |
728 | if (!bearer) |
729 | return -EMSGSIZE; | |
730 | ||
731 | if (nla_put_string(skb, TIPC_NLA_BEARER_NAME, lc->name)) | |
732 | return -EMSGSIZE; | |
733 | ||
ae0be8de | 734 | prop = nla_nest_start_noflag(skb, TIPC_NLA_BEARER_PROP); |
c3d6fb85 RA |
735 | if (!prop) |
736 | return -EMSGSIZE; | |
737 | ||
738 | __tipc_add_link_prop(skb, msg, lc); | |
739 | nla_nest_end(skb, prop); | |
740 | nla_nest_end(skb, bearer); | |
741 | ||
742 | return 0; | |
743 | } | |
744 | ||
745 | static int __tipc_nl_compat_link_set(struct sk_buff *skb, | |
746 | struct tipc_nl_compat_msg *msg) | |
747 | { | |
748 | struct nlattr *prop; | |
749 | struct nlattr *link; | |
37e2d484 RA |
750 | struct tipc_link_config *lc; |
751 | ||
752 | lc = (struct tipc_link_config *)TLV_DATA(msg->req); | |
753 | ||
ae0be8de | 754 | link = nla_nest_start_noflag(skb, TIPC_NLA_LINK); |
37e2d484 RA |
755 | if (!link) |
756 | return -EMSGSIZE; | |
757 | ||
758 | if (nla_put_string(skb, TIPC_NLA_LINK_NAME, lc->name)) | |
759 | return -EMSGSIZE; | |
760 | ||
ae0be8de | 761 | prop = nla_nest_start_noflag(skb, TIPC_NLA_LINK_PROP); |
37e2d484 RA |
762 | if (!prop) |
763 | return -EMSGSIZE; | |
764 | ||
c3d6fb85 | 765 | __tipc_add_link_prop(skb, msg, lc); |
37e2d484 RA |
766 | nla_nest_end(skb, prop); |
767 | nla_nest_end(skb, link); | |
768 | ||
769 | return 0; | |
770 | } | |
771 | ||
c3d6fb85 RA |
772 | static int tipc_nl_compat_link_set(struct tipc_nl_compat_cmd_doit *cmd, |
773 | struct sk_buff *skb, | |
774 | struct tipc_nl_compat_msg *msg) | |
775 | { | |
776 | struct tipc_link_config *lc; | |
777 | struct tipc_bearer *bearer; | |
778 | struct tipc_media *media; | |
edf5ff04 | 779 | int len; |
c3d6fb85 RA |
780 | |
781 | lc = (struct tipc_link_config *)TLV_DATA(msg->req); | |
782 | ||
8c63bf9a XL |
783 | len = TLV_GET_DATA_LEN(msg->req); |
784 | len -= offsetof(struct tipc_link_config, name); | |
785 | if (len <= 0) | |
786 | return -EINVAL; | |
787 | ||
788 | len = min_t(int, len, TIPC_MAX_LINK_NAME); | |
edf5ff04 YX |
789 | if (!string_is_valid(lc->name, len)) |
790 | return -EINVAL; | |
791 | ||
c3d6fb85 RA |
792 | media = tipc_media_find(lc->name); |
793 | if (media) { | |
ed4ffdfe | 794 | cmd->doit = &__tipc_nl_media_set; |
c3d6fb85 RA |
795 | return tipc_nl_compat_media_set(skb, msg); |
796 | } | |
797 | ||
798 | bearer = tipc_bearer_find(msg->net, lc->name); | |
799 | if (bearer) { | |
ed4ffdfe | 800 | cmd->doit = &__tipc_nl_bearer_set; |
c3d6fb85 RA |
801 | return tipc_nl_compat_bearer_set(skb, msg); |
802 | } | |
803 | ||
804 | return __tipc_nl_compat_link_set(skb, msg); | |
805 | } | |
806 | ||
807 | static int tipc_nl_compat_link_reset_stats(struct tipc_nl_compat_cmd_doit *cmd, | |
808 | struct sk_buff *skb, | |
1817877b RA |
809 | struct tipc_nl_compat_msg *msg) |
810 | { | |
811 | char *name; | |
812 | struct nlattr *link; | |
8b66fee7 | 813 | int len; |
1817877b RA |
814 | |
815 | name = (char *)TLV_DATA(msg->req); | |
816 | ||
ae0be8de | 817 | link = nla_nest_start_noflag(skb, TIPC_NLA_LINK); |
1817877b RA |
818 | if (!link) |
819 | return -EMSGSIZE; | |
820 | ||
4f07b80c XL |
821 | len = TLV_GET_DATA_LEN(msg->req); |
822 | if (len <= 0) | |
823 | return -EINVAL; | |
824 | ||
825 | len = min_t(int, len, TIPC_MAX_BEARER_NAME); | |
8b66fee7 YX |
826 | if (!string_is_valid(name, len)) |
827 | return -EINVAL; | |
828 | ||
1817877b RA |
829 | if (nla_put_string(skb, TIPC_NLA_LINK_NAME, name)) |
830 | return -EMSGSIZE; | |
831 | ||
832 | nla_nest_end(skb, link); | |
833 | ||
834 | return 0; | |
835 | } | |
836 | ||
44a8ae94 RA |
837 | static int tipc_nl_compat_name_table_dump_header(struct tipc_nl_compat_msg *msg) |
838 | { | |
839 | int i; | |
840 | u32 depth; | |
841 | struct tipc_name_table_query *ntq; | |
842 | static const char * const header[] = { | |
843 | "Type ", | |
844 | "Lower Upper ", | |
845 | "Port Identity ", | |
846 | "Publication Scope" | |
847 | }; | |
848 | ||
849 | ntq = (struct tipc_name_table_query *)TLV_DATA(msg->req); | |
974cb0e3 YX |
850 | if (TLV_GET_DATA_LEN(msg->req) < sizeof(struct tipc_name_table_query)) |
851 | return -EINVAL; | |
44a8ae94 RA |
852 | |
853 | depth = ntohl(ntq->depth); | |
854 | ||
855 | if (depth > 4) | |
856 | depth = 4; | |
857 | for (i = 0; i < depth; i++) | |
858 | tipc_tlv_sprintf(msg->rep, header[i]); | |
859 | tipc_tlv_sprintf(msg->rep, "\n"); | |
860 | ||
861 | return 0; | |
862 | } | |
863 | ||
864 | static int tipc_nl_compat_name_table_dump(struct tipc_nl_compat_msg *msg, | |
865 | struct nlattr **attrs) | |
866 | { | |
867 | char port_str[27]; | |
868 | struct tipc_name_table_query *ntq; | |
869 | struct nlattr *nt[TIPC_NLA_NAME_TABLE_MAX + 1]; | |
870 | struct nlattr *publ[TIPC_NLA_PUBL_MAX + 1]; | |
871 | u32 node, depth, type, lowbound, upbound; | |
872 | static const char * const scope_str[] = {"", " zone", " cluster", | |
873 | " node"}; | |
297f7d2c | 874 | int err; |
44a8ae94 | 875 | |
297f7d2c BD |
876 | if (!attrs[TIPC_NLA_NAME_TABLE]) |
877 | return -EINVAL; | |
44a8ae94 | 878 | |
8cb08174 JB |
879 | err = nla_parse_nested_deprecated(nt, TIPC_NLA_NAME_TABLE_MAX, |
880 | attrs[TIPC_NLA_NAME_TABLE], NULL, | |
881 | NULL); | |
297f7d2c BD |
882 | if (err) |
883 | return err; | |
884 | ||
885 | if (!nt[TIPC_NLA_NAME_TABLE_PUBL]) | |
886 | return -EINVAL; | |
887 | ||
8cb08174 JB |
888 | err = nla_parse_nested_deprecated(publ, TIPC_NLA_PUBL_MAX, |
889 | nt[TIPC_NLA_NAME_TABLE_PUBL], NULL, | |
890 | NULL); | |
297f7d2c BD |
891 | if (err) |
892 | return err; | |
44a8ae94 RA |
893 | |
894 | ntq = (struct tipc_name_table_query *)TLV_DATA(msg->req); | |
895 | ||
896 | depth = ntohl(ntq->depth); | |
897 | type = ntohl(ntq->type); | |
898 | lowbound = ntohl(ntq->lowbound); | |
899 | upbound = ntohl(ntq->upbound); | |
900 | ||
901 | if (!(depth & TIPC_NTQ_ALLTYPES) && | |
902 | (type != nla_get_u32(publ[TIPC_NLA_PUBL_TYPE]))) | |
903 | return 0; | |
904 | if (lowbound && (lowbound > nla_get_u32(publ[TIPC_NLA_PUBL_UPPER]))) | |
905 | return 0; | |
906 | if (upbound && (upbound < nla_get_u32(publ[TIPC_NLA_PUBL_LOWER]))) | |
907 | return 0; | |
908 | ||
909 | tipc_tlv_sprintf(msg->rep, "%-10u ", | |
910 | nla_get_u32(publ[TIPC_NLA_PUBL_TYPE])); | |
911 | ||
912 | if (depth == 1) | |
913 | goto out; | |
914 | ||
915 | tipc_tlv_sprintf(msg->rep, "%-10u %-10u ", | |
916 | nla_get_u32(publ[TIPC_NLA_PUBL_LOWER]), | |
917 | nla_get_u32(publ[TIPC_NLA_PUBL_UPPER])); | |
918 | ||
919 | if (depth == 2) | |
920 | goto out; | |
921 | ||
922 | node = nla_get_u32(publ[TIPC_NLA_PUBL_NODE]); | |
923 | sprintf(port_str, "<%u.%u.%u:%u>", tipc_zone(node), tipc_cluster(node), | |
924 | tipc_node(node), nla_get_u32(publ[TIPC_NLA_PUBL_REF])); | |
925 | tipc_tlv_sprintf(msg->rep, "%-26s ", port_str); | |
926 | ||
927 | if (depth == 3) | |
928 | goto out; | |
929 | ||
930 | tipc_tlv_sprintf(msg->rep, "%-10u %s", | |
03aaaa9b | 931 | nla_get_u32(publ[TIPC_NLA_PUBL_KEY]), |
44a8ae94 RA |
932 | scope_str[nla_get_u32(publ[TIPC_NLA_PUBL_SCOPE])]); |
933 | out: | |
934 | tipc_tlv_sprintf(msg->rep, "\n"); | |
935 | ||
936 | return 0; | |
937 | } | |
938 | ||
487d2a3a RA |
939 | static int __tipc_nl_compat_publ_dump(struct tipc_nl_compat_msg *msg, |
940 | struct nlattr **attrs) | |
941 | { | |
942 | u32 type, lower, upper; | |
943 | struct nlattr *publ[TIPC_NLA_PUBL_MAX + 1]; | |
297f7d2c | 944 | int err; |
487d2a3a | 945 | |
297f7d2c BD |
946 | if (!attrs[TIPC_NLA_PUBL]) |
947 | return -EINVAL; | |
948 | ||
8cb08174 JB |
949 | err = nla_parse_nested_deprecated(publ, TIPC_NLA_PUBL_MAX, |
950 | attrs[TIPC_NLA_PUBL], NULL, NULL); | |
297f7d2c BD |
951 | if (err) |
952 | return err; | |
487d2a3a RA |
953 | |
954 | type = nla_get_u32(publ[TIPC_NLA_PUBL_TYPE]); | |
955 | lower = nla_get_u32(publ[TIPC_NLA_PUBL_LOWER]); | |
956 | upper = nla_get_u32(publ[TIPC_NLA_PUBL_UPPER]); | |
957 | ||
958 | if (lower == upper) | |
959 | tipc_tlv_sprintf(msg->rep, " {%u,%u}", type, lower); | |
960 | else | |
961 | tipc_tlv_sprintf(msg->rep, " {%u,%u,%u}", type, lower, upper); | |
962 | ||
963 | return 0; | |
964 | } | |
965 | ||
966 | static int tipc_nl_compat_publ_dump(struct tipc_nl_compat_msg *msg, u32 sock) | |
967 | { | |
968 | int err; | |
969 | void *hdr; | |
970 | struct nlattr *nest; | |
971 | struct sk_buff *args; | |
972 | struct tipc_nl_compat_cmd_dump dump; | |
973 | ||
974 | args = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
975 | if (!args) | |
976 | return -ENOMEM; | |
977 | ||
978 | hdr = genlmsg_put(args, 0, 0, &tipc_genl_family, NLM_F_MULTI, | |
979 | TIPC_NL_PUBL_GET); | |
f87d8ad9 GS |
980 | if (!hdr) { |
981 | kfree_skb(args); | |
46273cf7 | 982 | return -EMSGSIZE; |
f87d8ad9 | 983 | } |
487d2a3a | 984 | |
ae0be8de | 985 | nest = nla_nest_start_noflag(args, TIPC_NLA_SOCK); |
487d2a3a RA |
986 | if (!nest) { |
987 | kfree_skb(args); | |
988 | return -EMSGSIZE; | |
989 | } | |
990 | ||
991 | if (nla_put_u32(args, TIPC_NLA_SOCK_REF, sock)) { | |
992 | kfree_skb(args); | |
993 | return -EMSGSIZE; | |
994 | } | |
995 | ||
996 | nla_nest_end(args, nest); | |
997 | genlmsg_end(args, hdr); | |
998 | ||
999 | dump.dumpit = tipc_nl_publ_dump; | |
1000 | dump.format = __tipc_nl_compat_publ_dump; | |
1001 | ||
1002 | err = __tipc_nl_compat_dumpit(&dump, msg, args); | |
1003 | ||
1004 | kfree_skb(args); | |
1005 | ||
1006 | return err; | |
1007 | } | |
1008 | ||
1009 | static int tipc_nl_compat_sk_dump(struct tipc_nl_compat_msg *msg, | |
1010 | struct nlattr **attrs) | |
1011 | { | |
1012 | int err; | |
1013 | u32 sock_ref; | |
1014 | struct nlattr *sock[TIPC_NLA_SOCK_MAX + 1]; | |
1015 | ||
297f7d2c BD |
1016 | if (!attrs[TIPC_NLA_SOCK]) |
1017 | return -EINVAL; | |
1018 | ||
8cb08174 JB |
1019 | err = nla_parse_nested_deprecated(sock, TIPC_NLA_SOCK_MAX, |
1020 | attrs[TIPC_NLA_SOCK], NULL, NULL); | |
297f7d2c BD |
1021 | if (err) |
1022 | return err; | |
487d2a3a RA |
1023 | |
1024 | sock_ref = nla_get_u32(sock[TIPC_NLA_SOCK_REF]); | |
1025 | tipc_tlv_sprintf(msg->rep, "%u:", sock_ref); | |
1026 | ||
1027 | if (sock[TIPC_NLA_SOCK_CON]) { | |
1028 | u32 node; | |
1029 | struct nlattr *con[TIPC_NLA_CON_MAX + 1]; | |
1030 | ||
8cb08174 JB |
1031 | err = nla_parse_nested_deprecated(con, TIPC_NLA_CON_MAX, |
1032 | sock[TIPC_NLA_SOCK_CON], | |
1033 | NULL, NULL); | |
89dfd008 AP |
1034 | |
1035 | if (err) | |
1036 | return err; | |
487d2a3a RA |
1037 | |
1038 | node = nla_get_u32(con[TIPC_NLA_CON_NODE]); | |
1039 | tipc_tlv_sprintf(msg->rep, " connected to <%u.%u.%u:%u>", | |
1040 | tipc_zone(node), | |
1041 | tipc_cluster(node), | |
1042 | tipc_node(node), | |
1043 | nla_get_u32(con[TIPC_NLA_CON_SOCK])); | |
1044 | ||
1045 | if (con[TIPC_NLA_CON_FLAG]) | |
1046 | tipc_tlv_sprintf(msg->rep, " via {%u,%u}\n", | |
1047 | nla_get_u32(con[TIPC_NLA_CON_TYPE]), | |
1048 | nla_get_u32(con[TIPC_NLA_CON_INST])); | |
1049 | else | |
1050 | tipc_tlv_sprintf(msg->rep, "\n"); | |
1051 | } else if (sock[TIPC_NLA_SOCK_HAS_PUBL]) { | |
1052 | tipc_tlv_sprintf(msg->rep, " bound to"); | |
1053 | ||
1054 | err = tipc_nl_compat_publ_dump(msg, sock_ref); | |
1055 | if (err) | |
1056 | return err; | |
1057 | } | |
1058 | tipc_tlv_sprintf(msg->rep, "\n"); | |
1059 | ||
1060 | return 0; | |
1061 | } | |
1062 | ||
5bfc335a RA |
1063 | static int tipc_nl_compat_media_dump(struct tipc_nl_compat_msg *msg, |
1064 | struct nlattr **attrs) | |
1065 | { | |
1066 | struct nlattr *media[TIPC_NLA_MEDIA_MAX + 1]; | |
297f7d2c BD |
1067 | int err; |
1068 | ||
1069 | if (!attrs[TIPC_NLA_MEDIA]) | |
1070 | return -EINVAL; | |
5bfc335a | 1071 | |
8cb08174 JB |
1072 | err = nla_parse_nested_deprecated(media, TIPC_NLA_MEDIA_MAX, |
1073 | attrs[TIPC_NLA_MEDIA], NULL, NULL); | |
297f7d2c BD |
1074 | if (err) |
1075 | return err; | |
5bfc335a RA |
1076 | |
1077 | return tipc_add_tlv(msg->rep, TIPC_TLV_MEDIA_NAME, | |
1078 | nla_data(media[TIPC_NLA_MEDIA_NAME]), | |
1079 | nla_len(media[TIPC_NLA_MEDIA_NAME])); | |
1080 | } | |
1081 | ||
4b28cb58 RA |
1082 | static int tipc_nl_compat_node_dump(struct tipc_nl_compat_msg *msg, |
1083 | struct nlattr **attrs) | |
1084 | { | |
1085 | struct tipc_node_info node_info; | |
1086 | struct nlattr *node[TIPC_NLA_NODE_MAX + 1]; | |
297f7d2c | 1087 | int err; |
4b28cb58 | 1088 | |
297f7d2c BD |
1089 | if (!attrs[TIPC_NLA_NODE]) |
1090 | return -EINVAL; | |
1091 | ||
8cb08174 JB |
1092 | err = nla_parse_nested_deprecated(node, TIPC_NLA_NODE_MAX, |
1093 | attrs[TIPC_NLA_NODE], NULL, NULL); | |
297f7d2c BD |
1094 | if (err) |
1095 | return err; | |
4b28cb58 RA |
1096 | |
1097 | node_info.addr = htonl(nla_get_u32(node[TIPC_NLA_NODE_ADDR])); | |
1098 | node_info.up = htonl(nla_get_flag(node[TIPC_NLA_NODE_UP])); | |
1099 | ||
1100 | return tipc_add_tlv(msg->rep, TIPC_TLV_NODE_INFO, &node_info, | |
1101 | sizeof(node_info)); | |
1102 | } | |
1103 | ||
c3d6fb85 RA |
1104 | static int tipc_nl_compat_net_set(struct tipc_nl_compat_cmd_doit *cmd, |
1105 | struct sk_buff *skb, | |
d7cc75d3 RA |
1106 | struct tipc_nl_compat_msg *msg) |
1107 | { | |
1108 | u32 val; | |
1109 | struct nlattr *net; | |
1110 | ||
1111 | val = ntohl(*(__be32 *)TLV_DATA(msg->req)); | |
1112 | ||
ae0be8de | 1113 | net = nla_nest_start_noflag(skb, TIPC_NLA_NET); |
d7cc75d3 RA |
1114 | if (!net) |
1115 | return -EMSGSIZE; | |
1116 | ||
964f9501 RA |
1117 | if (msg->cmd == TIPC_CMD_SET_NODE_ADDR) { |
1118 | if (nla_put_u32(skb, TIPC_NLA_NET_ADDR, val)) | |
1119 | return -EMSGSIZE; | |
1120 | } else if (msg->cmd == TIPC_CMD_SET_NETID) { | |
1121 | if (nla_put_u32(skb, TIPC_NLA_NET_ID, val)) | |
1122 | return -EMSGSIZE; | |
1123 | } | |
d7cc75d3 RA |
1124 | nla_nest_end(skb, net); |
1125 | ||
1126 | return 0; | |
1127 | } | |
1128 | ||
3c26181c RA |
1129 | static int tipc_nl_compat_net_dump(struct tipc_nl_compat_msg *msg, |
1130 | struct nlattr **attrs) | |
1131 | { | |
1132 | __be32 id; | |
1133 | struct nlattr *net[TIPC_NLA_NET_MAX + 1]; | |
297f7d2c BD |
1134 | int err; |
1135 | ||
1136 | if (!attrs[TIPC_NLA_NET]) | |
1137 | return -EINVAL; | |
1138 | ||
8cb08174 JB |
1139 | err = nla_parse_nested_deprecated(net, TIPC_NLA_NET_MAX, |
1140 | attrs[TIPC_NLA_NET], NULL, NULL); | |
297f7d2c BD |
1141 | if (err) |
1142 | return err; | |
3c26181c | 1143 | |
3c26181c RA |
1144 | id = htonl(nla_get_u32(net[TIPC_NLA_NET_ID])); |
1145 | ||
1146 | return tipc_add_tlv(msg->rep, TIPC_TLV_UNSIGNED, &id, sizeof(id)); | |
1147 | } | |
1148 | ||
5a81a637 RA |
1149 | static int tipc_cmd_show_stats_compat(struct tipc_nl_compat_msg *msg) |
1150 | { | |
1151 | msg->rep = tipc_tlv_alloc(ULTRA_STRING_MAX_LEN); | |
1152 | if (!msg->rep) | |
1153 | return -ENOMEM; | |
1154 | ||
1155 | tipc_tlv_init(msg->rep, TIPC_TLV_ULTRA_STRING); | |
1156 | tipc_tlv_sprintf(msg->rep, "TIPC version " TIPC_MOD_VER "\n"); | |
1157 | ||
1158 | return 0; | |
1159 | } | |
1160 | ||
d0796d1e RA |
1161 | static int tipc_nl_compat_handle(struct tipc_nl_compat_msg *msg) |
1162 | { | |
1163 | struct tipc_nl_compat_cmd_dump dump; | |
9ab15465 | 1164 | struct tipc_nl_compat_cmd_doit doit; |
d0796d1e RA |
1165 | |
1166 | memset(&dump, 0, sizeof(dump)); | |
9ab15465 | 1167 | memset(&doit, 0, sizeof(doit)); |
d0796d1e RA |
1168 | |
1169 | switch (msg->cmd) { | |
22ae7cff RA |
1170 | case TIPC_CMD_NOOP: |
1171 | msg->rep = tipc_tlv_alloc(0); | |
1172 | if (!msg->rep) | |
1173 | return -ENOMEM; | |
1174 | return 0; | |
d0796d1e RA |
1175 | case TIPC_CMD_GET_BEARER_NAMES: |
1176 | msg->rep_size = MAX_BEARERS * TLV_SPACE(TIPC_MAX_BEARER_NAME); | |
1177 | dump.dumpit = tipc_nl_bearer_dump; | |
1178 | dump.format = tipc_nl_compat_bearer_dump; | |
1179 | return tipc_nl_compat_dumpit(&dump, msg); | |
9ab15465 RA |
1180 | case TIPC_CMD_ENABLE_BEARER: |
1181 | msg->req_type = TIPC_TLV_BEARER_CONFIG; | |
ed4ffdfe | 1182 | doit.doit = __tipc_nl_bearer_enable; |
9ab15465 RA |
1183 | doit.transcode = tipc_nl_compat_bearer_enable; |
1184 | return tipc_nl_compat_doit(&doit, msg); | |
1185 | case TIPC_CMD_DISABLE_BEARER: | |
1186 | msg->req_type = TIPC_TLV_BEARER_NAME; | |
ed4ffdfe | 1187 | doit.doit = __tipc_nl_bearer_disable; |
9ab15465 RA |
1188 | doit.transcode = tipc_nl_compat_bearer_disable; |
1189 | return tipc_nl_compat_doit(&doit, msg); | |
f2b3b2d4 RA |
1190 | case TIPC_CMD_SHOW_LINK_STATS: |
1191 | msg->req_type = TIPC_TLV_LINK_NAME; | |
1192 | msg->rep_size = ULTRA_STRING_MAX_LEN; | |
1193 | msg->rep_type = TIPC_TLV_ULTRA_STRING; | |
38206d59 | 1194 | dump.dumpit = tipc_nl_node_dump_link; |
f2b3b2d4 RA |
1195 | dump.format = tipc_nl_compat_link_stat_dump; |
1196 | return tipc_nl_compat_dumpit(&dump, msg); | |
357ebdbf RA |
1197 | case TIPC_CMD_GET_LINKS: |
1198 | msg->req_type = TIPC_TLV_NET_ADDR; | |
1199 | msg->rep_size = ULTRA_STRING_MAX_LEN; | |
38206d59 | 1200 | dump.dumpit = tipc_nl_node_dump_link; |
357ebdbf RA |
1201 | dump.format = tipc_nl_compat_link_dump; |
1202 | return tipc_nl_compat_dumpit(&dump, msg); | |
37e2d484 RA |
1203 | case TIPC_CMD_SET_LINK_TOL: |
1204 | case TIPC_CMD_SET_LINK_PRI: | |
1205 | case TIPC_CMD_SET_LINK_WINDOW: | |
1206 | msg->req_type = TIPC_TLV_LINK_CONFIG; | |
5be9c086 | 1207 | doit.doit = tipc_nl_node_set_link; |
37e2d484 RA |
1208 | doit.transcode = tipc_nl_compat_link_set; |
1209 | return tipc_nl_compat_doit(&doit, msg); | |
1817877b RA |
1210 | case TIPC_CMD_RESET_LINK_STATS: |
1211 | msg->req_type = TIPC_TLV_LINK_NAME; | |
5be9c086 | 1212 | doit.doit = tipc_nl_node_reset_link_stats; |
1817877b RA |
1213 | doit.transcode = tipc_nl_compat_link_reset_stats; |
1214 | return tipc_nl_compat_doit(&doit, msg); | |
44a8ae94 RA |
1215 | case TIPC_CMD_SHOW_NAME_TABLE: |
1216 | msg->req_type = TIPC_TLV_NAME_TBL_QUERY; | |
1217 | msg->rep_size = ULTRA_STRING_MAX_LEN; | |
1218 | msg->rep_type = TIPC_TLV_ULTRA_STRING; | |
1219 | dump.header = tipc_nl_compat_name_table_dump_header; | |
1220 | dump.dumpit = tipc_nl_name_table_dump; | |
1221 | dump.format = tipc_nl_compat_name_table_dump; | |
1222 | return tipc_nl_compat_dumpit(&dump, msg); | |
487d2a3a RA |
1223 | case TIPC_CMD_SHOW_PORTS: |
1224 | msg->rep_size = ULTRA_STRING_MAX_LEN; | |
1225 | msg->rep_type = TIPC_TLV_ULTRA_STRING; | |
1226 | dump.dumpit = tipc_nl_sk_dump; | |
1227 | dump.format = tipc_nl_compat_sk_dump; | |
1228 | return tipc_nl_compat_dumpit(&dump, msg); | |
5bfc335a RA |
1229 | case TIPC_CMD_GET_MEDIA_NAMES: |
1230 | msg->rep_size = MAX_MEDIA * TLV_SPACE(TIPC_MAX_MEDIA_NAME); | |
1231 | dump.dumpit = tipc_nl_media_dump; | |
1232 | dump.format = tipc_nl_compat_media_dump; | |
1233 | return tipc_nl_compat_dumpit(&dump, msg); | |
4b28cb58 RA |
1234 | case TIPC_CMD_GET_NODES: |
1235 | msg->rep_size = ULTRA_STRING_MAX_LEN; | |
1236 | dump.dumpit = tipc_nl_node_dump; | |
1237 | dump.format = tipc_nl_compat_node_dump; | |
1238 | return tipc_nl_compat_dumpit(&dump, msg); | |
d7cc75d3 RA |
1239 | case TIPC_CMD_SET_NODE_ADDR: |
1240 | msg->req_type = TIPC_TLV_NET_ADDR; | |
ed4ffdfe | 1241 | doit.doit = __tipc_nl_net_set; |
d7cc75d3 RA |
1242 | doit.transcode = tipc_nl_compat_net_set; |
1243 | return tipc_nl_compat_doit(&doit, msg); | |
964f9501 RA |
1244 | case TIPC_CMD_SET_NETID: |
1245 | msg->req_type = TIPC_TLV_UNSIGNED; | |
ed4ffdfe | 1246 | doit.doit = __tipc_nl_net_set; |
964f9501 RA |
1247 | doit.transcode = tipc_nl_compat_net_set; |
1248 | return tipc_nl_compat_doit(&doit, msg); | |
3c26181c RA |
1249 | case TIPC_CMD_GET_NETID: |
1250 | msg->rep_size = sizeof(u32); | |
1251 | dump.dumpit = tipc_nl_net_dump; | |
1252 | dump.format = tipc_nl_compat_net_dump; | |
1253 | return tipc_nl_compat_dumpit(&dump, msg); | |
5a81a637 RA |
1254 | case TIPC_CMD_SHOW_STATS: |
1255 | return tipc_cmd_show_stats_compat(msg); | |
d0796d1e RA |
1256 | } |
1257 | ||
1258 | return -EOPNOTSUPP; | |
1259 | } | |
1260 | ||
1261 | static int tipc_nl_compat_recv(struct sk_buff *skb, struct genl_info *info) | |
1262 | { | |
1263 | int err; | |
1264 | int len; | |
1265 | struct tipc_nl_compat_msg msg; | |
1266 | struct nlmsghdr *req_nlh; | |
1267 | struct nlmsghdr *rep_nlh; | |
1268 | struct tipc_genlmsghdr *req_userhdr = info->userhdr; | |
d0796d1e RA |
1269 | |
1270 | memset(&msg, 0, sizeof(msg)); | |
1271 | ||
1272 | req_nlh = (struct nlmsghdr *)skb->data; | |
1273 | msg.req = nlmsg_data(req_nlh) + GENL_HDRLEN + TIPC_GENL_HDRLEN; | |
1274 | msg.cmd = req_userhdr->cmd; | |
c3d6fb85 | 1275 | msg.net = genl_info_net(info); |
619b1745 | 1276 | msg.dst_sk = skb->sk; |
d0796d1e RA |
1277 | |
1278 | if ((msg.cmd & 0xC000) && (!netlink_net_capable(skb, CAP_NET_ADMIN))) { | |
1279 | msg.rep = tipc_get_err_tlv(TIPC_CFG_NOT_NET_ADMIN); | |
1280 | err = -EACCES; | |
1281 | goto send; | |
1282 | } | |
1283 | ||
4da5f001 TK |
1284 | msg.req_size = nlmsg_attrlen(req_nlh, GENL_HDRLEN + TIPC_GENL_HDRLEN); |
1285 | if (msg.req_size && !TLV_OK(msg.req, msg.req_size)) { | |
d0796d1e RA |
1286 | msg.rep = tipc_get_err_tlv(TIPC_CFG_NOT_SUPPORTED); |
1287 | err = -EOPNOTSUPP; | |
1288 | goto send; | |
1289 | } | |
1290 | ||
1291 | err = tipc_nl_compat_handle(&msg); | |
b063bc5e | 1292 | if ((err == -EOPNOTSUPP) || (err == -EPERM)) |
d0796d1e RA |
1293 | msg.rep = tipc_get_err_tlv(TIPC_CFG_NOT_SUPPORTED); |
1294 | else if (err == -EINVAL) | |
1295 | msg.rep = tipc_get_err_tlv(TIPC_CFG_TLV_ERROR); | |
1296 | send: | |
1297 | if (!msg.rep) | |
1298 | return err; | |
1299 | ||
1300 | len = nlmsg_total_size(GENL_HDRLEN + TIPC_GENL_HDRLEN); | |
1301 | skb_push(msg.rep, len); | |
1302 | rep_nlh = nlmsg_hdr(msg.rep); | |
1303 | memcpy(rep_nlh, info->nlhdr, len); | |
1304 | rep_nlh->nlmsg_len = msg.rep->len; | |
c3d6fb85 | 1305 | genlmsg_unicast(msg.net, msg.rep, NETLINK_CB(skb).portid); |
d0796d1e RA |
1306 | |
1307 | return err; | |
1308 | } | |
1309 | ||
042a9010 | 1310 | static const struct genl_ops tipc_genl_compat_ops[] = { |
489111e5 JB |
1311 | { |
1312 | .cmd = TIPC_GENL_CMD, | |
ef6243ac | 1313 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
489111e5 JB |
1314 | .doit = tipc_nl_compat_recv, |
1315 | }, | |
1316 | }; | |
1317 | ||
56989f6d | 1318 | static struct genl_family tipc_genl_compat_family __ro_after_init = { |
bfb3e5dd RA |
1319 | .name = TIPC_GENL_NAME, |
1320 | .version = TIPC_GENL_VERSION, | |
1321 | .hdrsize = TIPC_GENL_HDRLEN, | |
1322 | .maxattr = 0, | |
1323 | .netnsok = true, | |
489111e5 JB |
1324 | .module = THIS_MODULE, |
1325 | .ops = tipc_genl_compat_ops, | |
1326 | .n_ops = ARRAY_SIZE(tipc_genl_compat_ops), | |
bfb3e5dd RA |
1327 | }; |
1328 | ||
56989f6d | 1329 | int __init tipc_netlink_compat_start(void) |
bfb3e5dd RA |
1330 | { |
1331 | int res; | |
1332 | ||
489111e5 | 1333 | res = genl_register_family(&tipc_genl_compat_family); |
bfb3e5dd RA |
1334 | if (res) { |
1335 | pr_err("Failed to register legacy compat interface\n"); | |
1336 | return res; | |
1337 | } | |
1338 | ||
1339 | return 0; | |
1340 | } | |
1341 | ||
1342 | void tipc_netlink_compat_stop(void) | |
1343 | { | |
1344 | genl_unregister_family(&tipc_genl_compat_family); | |
1345 | } |