]>
Commit | Line | Data |
---|---|---|
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 | ||
8b66fee7 YX |
90 | static inline int TLV_GET_DATA_LEN(struct tlv_desc *tlv) |
91 | { | |
92 | return TLV_GET_LEN(tlv) - TLV_SPACE(0); | |
93 | } | |
94 | ||
d0796d1e RA |
95 | static int tipc_add_tlv(struct sk_buff *skb, u16 type, void *data, u16 len) |
96 | { | |
97 | struct tlv_desc *tlv = (struct tlv_desc *)skb_tail_pointer(skb); | |
98 | ||
99 | if (tipc_skb_tailroom(skb) < TLV_SPACE(len)) | |
100 | return -EMSGSIZE; | |
101 | ||
102 | skb_put(skb, TLV_SPACE(len)); | |
103 | tlv->tlv_type = htons(type); | |
104 | tlv->tlv_len = htons(TLV_LENGTH(len)); | |
105 | if (len && data) | |
106 | memcpy(TLV_DATA(tlv), data, len); | |
107 | ||
108 | return 0; | |
109 | } | |
110 | ||
f2b3b2d4 RA |
111 | static void tipc_tlv_init(struct sk_buff *skb, u16 type) |
112 | { | |
113 | struct tlv_desc *tlv = (struct tlv_desc *)skb->data; | |
114 | ||
115 | TLV_SET_LEN(tlv, 0); | |
116 | TLV_SET_TYPE(tlv, type); | |
117 | skb_put(skb, sizeof(struct tlv_desc)); | |
118 | } | |
119 | ||
120 | static int tipc_tlv_sprintf(struct sk_buff *skb, const char *fmt, ...) | |
121 | { | |
122 | int n; | |
123 | u16 len; | |
124 | u32 rem; | |
125 | char *buf; | |
126 | struct tlv_desc *tlv; | |
127 | va_list args; | |
128 | ||
129 | rem = tipc_skb_tailroom(skb); | |
130 | ||
131 | tlv = (struct tlv_desc *)skb->data; | |
132 | len = TLV_GET_LEN(tlv); | |
133 | buf = TLV_DATA(tlv) + len; | |
134 | ||
135 | va_start(args, fmt); | |
136 | n = vscnprintf(buf, rem, fmt, args); | |
137 | va_end(args); | |
138 | ||
139 | TLV_SET_LEN(tlv, n + len); | |
140 | skb_put(skb, n); | |
141 | ||
142 | return n; | |
143 | } | |
144 | ||
d0796d1e RA |
145 | static struct sk_buff *tipc_tlv_alloc(int size) |
146 | { | |
147 | int hdr_len; | |
148 | struct sk_buff *buf; | |
149 | ||
150 | size = TLV_SPACE(size); | |
151 | hdr_len = nlmsg_total_size(GENL_HDRLEN + TIPC_GENL_HDRLEN); | |
152 | ||
153 | buf = alloc_skb(hdr_len + size, GFP_KERNEL); | |
154 | if (!buf) | |
155 | return NULL; | |
156 | ||
157 | skb_reserve(buf, hdr_len); | |
158 | ||
159 | return buf; | |
160 | } | |
161 | ||
162 | static struct sk_buff *tipc_get_err_tlv(char *str) | |
163 | { | |
164 | int str_len = strlen(str) + 1; | |
165 | struct sk_buff *buf; | |
166 | ||
167 | buf = tipc_tlv_alloc(TLV_SPACE(str_len)); | |
168 | if (buf) | |
169 | tipc_add_tlv(buf, TIPC_TLV_ERROR_STRING, str, str_len); | |
170 | ||
171 | return buf; | |
172 | } | |
173 | ||
8b66fee7 YX |
174 | static inline bool string_is_valid(char *s, int len) |
175 | { | |
176 | return memchr(s, '\0', len) ? true : false; | |
177 | } | |
178 | ||
d0796d1e RA |
179 | static int __tipc_nl_compat_dumpit(struct tipc_nl_compat_cmd_dump *cmd, |
180 | struct tipc_nl_compat_msg *msg, | |
181 | struct sk_buff *arg) | |
182 | { | |
183 | int len = 0; | |
184 | int err; | |
185 | struct sk_buff *buf; | |
186 | struct nlmsghdr *nlmsg; | |
187 | struct netlink_callback cb; | |
188 | ||
189 | memset(&cb, 0, sizeof(cb)); | |
190 | cb.nlh = (struct nlmsghdr *)arg->data; | |
191 | cb.skb = arg; | |
192 | ||
193 | buf = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
194 | if (!buf) | |
195 | return -ENOMEM; | |
196 | ||
197 | buf->sk = msg->dst_sk; | |
12a78b02 CW |
198 | if (__tipc_dump_start(&cb, msg->net)) { |
199 | kfree_skb(buf); | |
200 | return -ENOMEM; | |
201 | } | |
d0796d1e RA |
202 | |
203 | do { | |
204 | int rem; | |
205 | ||
206 | len = (*cmd->dumpit)(buf, &cb); | |
207 | ||
208 | nlmsg_for_each_msg(nlmsg, nlmsg_hdr(buf), len, rem) { | |
209 | struct nlattr **attrs; | |
210 | ||
211 | err = tipc_nlmsg_parse(nlmsg, &attrs); | |
212 | if (err) | |
213 | goto err_out; | |
214 | ||
215 | err = (*cmd->format)(msg, attrs); | |
216 | if (err) | |
217 | goto err_out; | |
218 | ||
219 | if (tipc_skb_tailroom(msg->rep) <= 1) { | |
220 | err = -EMSGSIZE; | |
221 | goto err_out; | |
222 | } | |
223 | } | |
224 | ||
225 | skb_reset_tail_pointer(buf); | |
226 | buf->len = 0; | |
227 | ||
228 | } while (len); | |
229 | ||
230 | err = 0; | |
231 | ||
232 | err_out: | |
8f5c5fcf | 233 | tipc_dump_done(&cb); |
d0796d1e RA |
234 | kfree_skb(buf); |
235 | ||
236 | if (err == -EMSGSIZE) { | |
237 | /* The legacy API only considered messages filling | |
238 | * "ULTRA_STRING_MAX_LEN" to be truncated. | |
239 | */ | |
240 | if ((TIPC_SKB_MAX - msg->rep->len) <= 1) { | |
241 | char *tail = skb_tail_pointer(msg->rep); | |
242 | ||
243 | if (*tail != '\0') | |
244 | sprintf(tail - sizeof(REPLY_TRUNCATED) - 1, | |
245 | REPLY_TRUNCATED); | |
246 | } | |
247 | ||
248 | return 0; | |
249 | } | |
250 | ||
251 | return err; | |
252 | } | |
253 | ||
254 | static int tipc_nl_compat_dumpit(struct tipc_nl_compat_cmd_dump *cmd, | |
255 | struct tipc_nl_compat_msg *msg) | |
256 | { | |
257 | int err; | |
258 | struct sk_buff *arg; | |
259 | ||
f2b3b2d4 RA |
260 | if (msg->req_type && !TLV_CHECK_TYPE(msg->req, msg->req_type)) |
261 | return -EINVAL; | |
262 | ||
d0796d1e RA |
263 | msg->rep = tipc_tlv_alloc(msg->rep_size); |
264 | if (!msg->rep) | |
265 | return -ENOMEM; | |
266 | ||
f2b3b2d4 RA |
267 | if (msg->rep_type) |
268 | tipc_tlv_init(msg->rep, msg->rep_type); | |
269 | ||
44a8ae94 RA |
270 | if (cmd->header) |
271 | (*cmd->header)(msg); | |
272 | ||
d0796d1e RA |
273 | arg = nlmsg_new(0, GFP_KERNEL); |
274 | if (!arg) { | |
275 | kfree_skb(msg->rep); | |
5bfd37b4 | 276 | msg->rep = NULL; |
d0796d1e RA |
277 | return -ENOMEM; |
278 | } | |
279 | ||
280 | err = __tipc_nl_compat_dumpit(cmd, msg, arg); | |
5bfd37b4 | 281 | if (err) { |
d0796d1e | 282 | kfree_skb(msg->rep); |
5bfd37b4 ED |
283 | msg->rep = NULL; |
284 | } | |
d0796d1e RA |
285 | kfree_skb(arg); |
286 | ||
287 | return err; | |
288 | } | |
289 | ||
9ab15465 RA |
290 | static int __tipc_nl_compat_doit(struct tipc_nl_compat_cmd_doit *cmd, |
291 | struct tipc_nl_compat_msg *msg) | |
292 | { | |
293 | int err; | |
294 | struct sk_buff *doit_buf; | |
295 | struct sk_buff *trans_buf; | |
296 | struct nlattr **attrbuf; | |
297 | struct genl_info info; | |
298 | ||
299 | trans_buf = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL); | |
300 | if (!trans_buf) | |
301 | return -ENOMEM; | |
302 | ||
6da2ec56 KC |
303 | attrbuf = kmalloc_array(tipc_genl_family.maxattr + 1, |
304 | sizeof(struct nlattr *), | |
305 | GFP_KERNEL); | |
9ab15465 RA |
306 | if (!attrbuf) { |
307 | err = -ENOMEM; | |
308 | goto trans_out; | |
309 | } | |
310 | ||
9ab15465 RA |
311 | doit_buf = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL); |
312 | if (!doit_buf) { | |
313 | err = -ENOMEM; | |
e5d1a1ee | 314 | goto attrbuf_out; |
9ab15465 RA |
315 | } |
316 | ||
9ab15465 RA |
317 | memset(&info, 0, sizeof(info)); |
318 | info.attrs = attrbuf; | |
319 | ||
ed4ffdfe | 320 | rtnl_lock(); |
e5d1a1ee YX |
321 | err = (*cmd->transcode)(cmd, trans_buf, msg); |
322 | if (err) | |
323 | goto doit_out; | |
324 | ||
325 | err = nla_parse(attrbuf, tipc_genl_family.maxattr, | |
326 | (const struct nlattr *)trans_buf->data, | |
327 | trans_buf->len, NULL, NULL); | |
328 | if (err) | |
329 | goto doit_out; | |
330 | ||
331 | doit_buf->sk = msg->dst_sk; | |
332 | ||
9ab15465 | 333 | err = (*cmd->doit)(doit_buf, &info); |
e5d1a1ee | 334 | doit_out: |
ed4ffdfe | 335 | rtnl_unlock(); |
9ab15465 RA |
336 | |
337 | kfree_skb(doit_buf); | |
e5d1a1ee | 338 | attrbuf_out: |
9ab15465 RA |
339 | kfree(attrbuf); |
340 | trans_out: | |
341 | kfree_skb(trans_buf); | |
342 | ||
343 | return err; | |
344 | } | |
345 | ||
346 | static int tipc_nl_compat_doit(struct tipc_nl_compat_cmd_doit *cmd, | |
347 | struct tipc_nl_compat_msg *msg) | |
348 | { | |
349 | int err; | |
350 | ||
351 | if (msg->req_type && !TLV_CHECK_TYPE(msg->req, msg->req_type)) | |
352 | return -EINVAL; | |
353 | ||
354 | err = __tipc_nl_compat_doit(cmd, msg); | |
355 | if (err) | |
356 | return err; | |
357 | ||
358 | /* The legacy API considered an empty message a success message */ | |
359 | msg->rep = tipc_tlv_alloc(0); | |
360 | if (!msg->rep) | |
361 | return -ENOMEM; | |
362 | ||
363 | return 0; | |
364 | } | |
365 | ||
d0796d1e RA |
366 | static int tipc_nl_compat_bearer_dump(struct tipc_nl_compat_msg *msg, |
367 | struct nlattr **attrs) | |
368 | { | |
369 | struct nlattr *bearer[TIPC_NLA_BEARER_MAX + 1]; | |
297f7d2c BD |
370 | int err; |
371 | ||
372 | if (!attrs[TIPC_NLA_BEARER]) | |
373 | return -EINVAL; | |
d0796d1e | 374 | |
297f7d2c | 375 | err = nla_parse_nested(bearer, TIPC_NLA_BEARER_MAX, |
fceb6435 | 376 | attrs[TIPC_NLA_BEARER], NULL, NULL); |
297f7d2c BD |
377 | if (err) |
378 | return err; | |
d0796d1e RA |
379 | |
380 | return tipc_add_tlv(msg->rep, TIPC_TLV_BEARER_NAME, | |
381 | nla_data(bearer[TIPC_NLA_BEARER_NAME]), | |
382 | nla_len(bearer[TIPC_NLA_BEARER_NAME])); | |
383 | } | |
384 | ||
c3d6fb85 RA |
385 | static int tipc_nl_compat_bearer_enable(struct tipc_nl_compat_cmd_doit *cmd, |
386 | struct sk_buff *skb, | |
9ab15465 RA |
387 | struct tipc_nl_compat_msg *msg) |
388 | { | |
389 | struct nlattr *prop; | |
390 | struct nlattr *bearer; | |
391 | struct tipc_bearer_config *b; | |
0762216c | 392 | int len; |
9ab15465 RA |
393 | |
394 | b = (struct tipc_bearer_config *)TLV_DATA(msg->req); | |
395 | ||
396 | bearer = nla_nest_start(skb, TIPC_NLA_BEARER); | |
397 | if (!bearer) | |
398 | return -EMSGSIZE; | |
399 | ||
6f07e5f0 XL |
400 | len = TLV_GET_DATA_LEN(msg->req); |
401 | len -= offsetof(struct tipc_bearer_config, name); | |
402 | if (len <= 0) | |
403 | return -EINVAL; | |
404 | ||
405 | len = min_t(int, len, TIPC_MAX_BEARER_NAME); | |
0762216c YX |
406 | if (!string_is_valid(b->name, len)) |
407 | return -EINVAL; | |
408 | ||
9ab15465 RA |
409 | if (nla_put_string(skb, TIPC_NLA_BEARER_NAME, b->name)) |
410 | return -EMSGSIZE; | |
411 | ||
412 | if (nla_put_u32(skb, TIPC_NLA_BEARER_DOMAIN, ntohl(b->disc_domain))) | |
413 | return -EMSGSIZE; | |
414 | ||
415 | if (ntohl(b->priority) <= TIPC_MAX_LINK_PRI) { | |
416 | prop = nla_nest_start(skb, TIPC_NLA_BEARER_PROP); | |
417 | if (!prop) | |
418 | return -EMSGSIZE; | |
419 | if (nla_put_u32(skb, TIPC_NLA_PROP_PRIO, ntohl(b->priority))) | |
420 | return -EMSGSIZE; | |
421 | nla_nest_end(skb, prop); | |
422 | } | |
423 | nla_nest_end(skb, bearer); | |
424 | ||
425 | return 0; | |
426 | } | |
427 | ||
c3d6fb85 RA |
428 | static int tipc_nl_compat_bearer_disable(struct tipc_nl_compat_cmd_doit *cmd, |
429 | struct sk_buff *skb, | |
9ab15465 RA |
430 | struct tipc_nl_compat_msg *msg) |
431 | { | |
432 | char *name; | |
433 | struct nlattr *bearer; | |
0762216c | 434 | int len; |
9ab15465 RA |
435 | |
436 | name = (char *)TLV_DATA(msg->req); | |
437 | ||
438 | bearer = nla_nest_start(skb, TIPC_NLA_BEARER); | |
439 | if (!bearer) | |
440 | return -EMSGSIZE; | |
441 | ||
0762216c YX |
442 | len = min_t(int, TLV_GET_DATA_LEN(msg->req), TIPC_MAX_BEARER_NAME); |
443 | if (!string_is_valid(name, len)) | |
444 | return -EINVAL; | |
445 | ||
9ab15465 RA |
446 | if (nla_put_string(skb, TIPC_NLA_BEARER_NAME, name)) |
447 | return -EMSGSIZE; | |
448 | ||
449 | nla_nest_end(skb, bearer); | |
450 | ||
451 | return 0; | |
452 | } | |
453 | ||
f2b3b2d4 RA |
454 | static inline u32 perc(u32 count, u32 total) |
455 | { | |
456 | return (count * 100 + (total / 2)) / total; | |
457 | } | |
458 | ||
459 | static void __fill_bc_link_stat(struct tipc_nl_compat_msg *msg, | |
460 | struct nlattr *prop[], struct nlattr *stats[]) | |
461 | { | |
462 | tipc_tlv_sprintf(msg->rep, " Window:%u packets\n", | |
463 | nla_get_u32(prop[TIPC_NLA_PROP_WIN])); | |
464 | ||
465 | tipc_tlv_sprintf(msg->rep, | |
466 | " RX packets:%u fragments:%u/%u bundles:%u/%u\n", | |
467 | nla_get_u32(stats[TIPC_NLA_STATS_RX_INFO]), | |
468 | nla_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTS]), | |
469 | nla_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTED]), | |
470 | nla_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLES]), | |
471 | nla_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLED])); | |
472 | ||
473 | tipc_tlv_sprintf(msg->rep, | |
474 | " TX packets:%u fragments:%u/%u bundles:%u/%u\n", | |
475 | nla_get_u32(stats[TIPC_NLA_STATS_TX_INFO]), | |
476 | nla_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTS]), | |
477 | nla_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTED]), | |
478 | nla_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLES]), | |
479 | nla_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLED])); | |
480 | ||
481 | tipc_tlv_sprintf(msg->rep, " RX naks:%u defs:%u dups:%u\n", | |
482 | nla_get_u32(stats[TIPC_NLA_STATS_RX_NACKS]), | |
483 | nla_get_u32(stats[TIPC_NLA_STATS_RX_DEFERRED]), | |
484 | nla_get_u32(stats[TIPC_NLA_STATS_DUPLICATES])); | |
485 | ||
486 | tipc_tlv_sprintf(msg->rep, " TX naks:%u acks:%u dups:%u\n", | |
487 | nla_get_u32(stats[TIPC_NLA_STATS_TX_NACKS]), | |
488 | nla_get_u32(stats[TIPC_NLA_STATS_TX_ACKS]), | |
489 | nla_get_u32(stats[TIPC_NLA_STATS_RETRANSMITTED])); | |
490 | ||
491 | tipc_tlv_sprintf(msg->rep, | |
492 | " Congestion link:%u Send queue max:%u avg:%u", | |
493 | nla_get_u32(stats[TIPC_NLA_STATS_LINK_CONGS]), | |
494 | nla_get_u32(stats[TIPC_NLA_STATS_MAX_QUEUE]), | |
495 | nla_get_u32(stats[TIPC_NLA_STATS_AVG_QUEUE])); | |
496 | } | |
497 | ||
498 | static int tipc_nl_compat_link_stat_dump(struct tipc_nl_compat_msg *msg, | |
499 | struct nlattr **attrs) | |
500 | { | |
501 | char *name; | |
502 | struct nlattr *link[TIPC_NLA_LINK_MAX + 1]; | |
503 | struct nlattr *prop[TIPC_NLA_PROP_MAX + 1]; | |
504 | struct nlattr *stats[TIPC_NLA_STATS_MAX + 1]; | |
297f7d2c | 505 | int err; |
0762216c | 506 | int len; |
f2b3b2d4 | 507 | |
297f7d2c BD |
508 | if (!attrs[TIPC_NLA_LINK]) |
509 | return -EINVAL; | |
f2b3b2d4 | 510 | |
297f7d2c | 511 | err = nla_parse_nested(link, TIPC_NLA_LINK_MAX, attrs[TIPC_NLA_LINK], |
fceb6435 | 512 | NULL, NULL); |
297f7d2c BD |
513 | if (err) |
514 | return err; | |
515 | ||
516 | if (!link[TIPC_NLA_LINK_PROP]) | |
517 | return -EINVAL; | |
f2b3b2d4 | 518 | |
297f7d2c | 519 | err = nla_parse_nested(prop, TIPC_NLA_PROP_MAX, |
fceb6435 | 520 | link[TIPC_NLA_LINK_PROP], NULL, NULL); |
297f7d2c BD |
521 | if (err) |
522 | return err; | |
523 | ||
524 | if (!link[TIPC_NLA_LINK_STATS]) | |
525 | return -EINVAL; | |
526 | ||
527 | err = nla_parse_nested(stats, TIPC_NLA_STATS_MAX, | |
fceb6435 | 528 | link[TIPC_NLA_LINK_STATS], NULL, NULL); |
297f7d2c BD |
529 | if (err) |
530 | return err; | |
f2b3b2d4 RA |
531 | |
532 | name = (char *)TLV_DATA(msg->req); | |
0762216c YX |
533 | |
534 | len = min_t(int, TLV_GET_DATA_LEN(msg->req), TIPC_MAX_LINK_NAME); | |
535 | if (!string_is_valid(name, len)) | |
536 | return -EINVAL; | |
537 | ||
f2b3b2d4 RA |
538 | if (strcmp(name, nla_data(link[TIPC_NLA_LINK_NAME])) != 0) |
539 | return 0; | |
540 | ||
541 | tipc_tlv_sprintf(msg->rep, "\nLink <%s>\n", | |
542 | nla_data(link[TIPC_NLA_LINK_NAME])); | |
543 | ||
544 | if (link[TIPC_NLA_LINK_BROADCAST]) { | |
545 | __fill_bc_link_stat(msg, prop, stats); | |
546 | return 0; | |
547 | } | |
548 | ||
549 | if (link[TIPC_NLA_LINK_ACTIVE]) | |
550 | tipc_tlv_sprintf(msg->rep, " ACTIVE"); | |
551 | else if (link[TIPC_NLA_LINK_UP]) | |
552 | tipc_tlv_sprintf(msg->rep, " STANDBY"); | |
553 | else | |
554 | tipc_tlv_sprintf(msg->rep, " DEFUNCT"); | |
555 | ||
556 | tipc_tlv_sprintf(msg->rep, " MTU:%u Priority:%u", | |
557 | nla_get_u32(link[TIPC_NLA_LINK_MTU]), | |
558 | nla_get_u32(prop[TIPC_NLA_PROP_PRIO])); | |
559 | ||
560 | tipc_tlv_sprintf(msg->rep, " Tolerance:%u ms Window:%u packets\n", | |
561 | nla_get_u32(prop[TIPC_NLA_PROP_TOL]), | |
562 | nla_get_u32(prop[TIPC_NLA_PROP_WIN])); | |
563 | ||
564 | tipc_tlv_sprintf(msg->rep, | |
565 | " RX packets:%u fragments:%u/%u bundles:%u/%u\n", | |
566 | nla_get_u32(link[TIPC_NLA_LINK_RX]) - | |
567 | nla_get_u32(stats[TIPC_NLA_STATS_RX_INFO]), | |
568 | nla_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTS]), | |
569 | nla_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTED]), | |
570 | nla_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLES]), | |
571 | nla_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLED])); | |
572 | ||
573 | tipc_tlv_sprintf(msg->rep, | |
574 | " TX packets:%u fragments:%u/%u bundles:%u/%u\n", | |
575 | nla_get_u32(link[TIPC_NLA_LINK_TX]) - | |
576 | nla_get_u32(stats[TIPC_NLA_STATS_TX_INFO]), | |
577 | nla_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTS]), | |
578 | nla_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTED]), | |
579 | nla_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLES]), | |
580 | nla_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLED])); | |
581 | ||
582 | tipc_tlv_sprintf(msg->rep, | |
583 | " TX profile sample:%u packets average:%u octets\n", | |
584 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_CNT]), | |
585 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_TOT]) / | |
586 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])); | |
587 | ||
588 | tipc_tlv_sprintf(msg->rep, | |
589 | " 0-64:%u%% -256:%u%% -1024:%u%% -4096:%u%% ", | |
590 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P0]), | |
591 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])), | |
592 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P1]), | |
593 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])), | |
594 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P2]), | |
595 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])), | |
596 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P3]), | |
597 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT]))); | |
598 | ||
599 | tipc_tlv_sprintf(msg->rep, "-16384:%u%% -32768:%u%% -66000:%u%%\n", | |
600 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P4]), | |
601 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])), | |
602 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P5]), | |
603 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])), | |
604 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P6]), | |
605 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT]))); | |
606 | ||
607 | tipc_tlv_sprintf(msg->rep, | |
608 | " RX states:%u probes:%u naks:%u defs:%u dups:%u\n", | |
609 | nla_get_u32(stats[TIPC_NLA_STATS_RX_STATES]), | |
610 | nla_get_u32(stats[TIPC_NLA_STATS_RX_PROBES]), | |
611 | nla_get_u32(stats[TIPC_NLA_STATS_RX_NACKS]), | |
612 | nla_get_u32(stats[TIPC_NLA_STATS_RX_DEFERRED]), | |
613 | nla_get_u32(stats[TIPC_NLA_STATS_DUPLICATES])); | |
614 | ||
615 | tipc_tlv_sprintf(msg->rep, | |
616 | " TX states:%u probes:%u naks:%u acks:%u dups:%u\n", | |
617 | nla_get_u32(stats[TIPC_NLA_STATS_TX_STATES]), | |
618 | nla_get_u32(stats[TIPC_NLA_STATS_TX_PROBES]), | |
619 | nla_get_u32(stats[TIPC_NLA_STATS_TX_NACKS]), | |
620 | nla_get_u32(stats[TIPC_NLA_STATS_TX_ACKS]), | |
621 | nla_get_u32(stats[TIPC_NLA_STATS_RETRANSMITTED])); | |
622 | ||
623 | tipc_tlv_sprintf(msg->rep, | |
624 | " Congestion link:%u Send queue max:%u avg:%u", | |
625 | nla_get_u32(stats[TIPC_NLA_STATS_LINK_CONGS]), | |
626 | nla_get_u32(stats[TIPC_NLA_STATS_MAX_QUEUE]), | |
627 | nla_get_u32(stats[TIPC_NLA_STATS_AVG_QUEUE])); | |
628 | ||
629 | return 0; | |
630 | } | |
631 | ||
357ebdbf RA |
632 | static int tipc_nl_compat_link_dump(struct tipc_nl_compat_msg *msg, |
633 | struct nlattr **attrs) | |
634 | { | |
635 | struct nlattr *link[TIPC_NLA_LINK_MAX + 1]; | |
636 | struct tipc_link_info link_info; | |
297f7d2c | 637 | int err; |
357ebdbf | 638 | |
297f7d2c BD |
639 | if (!attrs[TIPC_NLA_LINK]) |
640 | return -EINVAL; | |
641 | ||
642 | err = nla_parse_nested(link, TIPC_NLA_LINK_MAX, attrs[TIPC_NLA_LINK], | |
fceb6435 | 643 | NULL, NULL); |
297f7d2c BD |
644 | if (err) |
645 | return err; | |
357ebdbf RA |
646 | |
647 | link_info.dest = nla_get_flag(link[TIPC_NLA_LINK_DEST]); | |
648 | link_info.up = htonl(nla_get_flag(link[TIPC_NLA_LINK_UP])); | |
55e77a3e | 649 | nla_strlcpy(link_info.str, link[TIPC_NLA_LINK_NAME], |
5d2be142 | 650 | TIPC_MAX_LINK_NAME); |
357ebdbf RA |
651 | |
652 | return tipc_add_tlv(msg->rep, TIPC_TLV_LINK_INFO, | |
653 | &link_info, sizeof(link_info)); | |
654 | } | |
655 | ||
c3d6fb85 RA |
656 | static int __tipc_add_link_prop(struct sk_buff *skb, |
657 | struct tipc_nl_compat_msg *msg, | |
658 | struct tipc_link_config *lc) | |
659 | { | |
660 | switch (msg->cmd) { | |
661 | case TIPC_CMD_SET_LINK_PRI: | |
662 | return nla_put_u32(skb, TIPC_NLA_PROP_PRIO, ntohl(lc->value)); | |
663 | case TIPC_CMD_SET_LINK_TOL: | |
664 | return nla_put_u32(skb, TIPC_NLA_PROP_TOL, ntohl(lc->value)); | |
665 | case TIPC_CMD_SET_LINK_WINDOW: | |
666 | return nla_put_u32(skb, TIPC_NLA_PROP_WIN, ntohl(lc->value)); | |
667 | } | |
668 | ||
669 | return -EINVAL; | |
670 | } | |
671 | ||
672 | static int tipc_nl_compat_media_set(struct sk_buff *skb, | |
673 | struct tipc_nl_compat_msg *msg) | |
37e2d484 | 674 | { |
37e2d484 | 675 | struct nlattr *prop; |
c3d6fb85 RA |
676 | struct nlattr *media; |
677 | struct tipc_link_config *lc; | |
0762216c | 678 | int len; |
c3d6fb85 RA |
679 | |
680 | lc = (struct tipc_link_config *)TLV_DATA(msg->req); | |
681 | ||
682 | media = nla_nest_start(skb, TIPC_NLA_MEDIA); | |
683 | if (!media) | |
684 | return -EMSGSIZE; | |
685 | ||
0762216c YX |
686 | len = min_t(int, TLV_GET_DATA_LEN(msg->req), TIPC_MAX_MEDIA_NAME); |
687 | if (!string_is_valid(lc->name, len)) | |
688 | return -EINVAL; | |
689 | ||
c3d6fb85 RA |
690 | if (nla_put_string(skb, TIPC_NLA_MEDIA_NAME, lc->name)) |
691 | return -EMSGSIZE; | |
692 | ||
693 | prop = nla_nest_start(skb, TIPC_NLA_MEDIA_PROP); | |
694 | if (!prop) | |
695 | return -EMSGSIZE; | |
696 | ||
697 | __tipc_add_link_prop(skb, msg, lc); | |
698 | nla_nest_end(skb, prop); | |
699 | nla_nest_end(skb, media); | |
700 | ||
701 | return 0; | |
702 | } | |
703 | ||
704 | static int tipc_nl_compat_bearer_set(struct sk_buff *skb, | |
705 | struct tipc_nl_compat_msg *msg) | |
706 | { | |
707 | struct nlattr *prop; | |
708 | struct nlattr *bearer; | |
709 | struct tipc_link_config *lc; | |
0762216c | 710 | int len; |
c3d6fb85 RA |
711 | |
712 | lc = (struct tipc_link_config *)TLV_DATA(msg->req); | |
713 | ||
714 | bearer = nla_nest_start(skb, TIPC_NLA_BEARER); | |
715 | if (!bearer) | |
716 | return -EMSGSIZE; | |
717 | ||
0762216c YX |
718 | len = min_t(int, TLV_GET_DATA_LEN(msg->req), TIPC_MAX_MEDIA_NAME); |
719 | if (!string_is_valid(lc->name, len)) | |
720 | return -EINVAL; | |
721 | ||
c3d6fb85 RA |
722 | if (nla_put_string(skb, TIPC_NLA_BEARER_NAME, lc->name)) |
723 | return -EMSGSIZE; | |
724 | ||
725 | prop = nla_nest_start(skb, TIPC_NLA_BEARER_PROP); | |
726 | if (!prop) | |
727 | return -EMSGSIZE; | |
728 | ||
729 | __tipc_add_link_prop(skb, msg, lc); | |
730 | nla_nest_end(skb, prop); | |
731 | nla_nest_end(skb, bearer); | |
732 | ||
733 | return 0; | |
734 | } | |
735 | ||
736 | static int __tipc_nl_compat_link_set(struct sk_buff *skb, | |
737 | struct tipc_nl_compat_msg *msg) | |
738 | { | |
739 | struct nlattr *prop; | |
740 | struct nlattr *link; | |
37e2d484 RA |
741 | struct tipc_link_config *lc; |
742 | ||
743 | lc = (struct tipc_link_config *)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, lc->name)) | |
750 | return -EMSGSIZE; | |
751 | ||
752 | prop = nla_nest_start(skb, TIPC_NLA_LINK_PROP); | |
753 | if (!prop) | |
754 | return -EMSGSIZE; | |
755 | ||
c3d6fb85 | 756 | __tipc_add_link_prop(skb, msg, lc); |
37e2d484 RA |
757 | nla_nest_end(skb, prop); |
758 | nla_nest_end(skb, link); | |
759 | ||
760 | return 0; | |
761 | } | |
762 | ||
c3d6fb85 RA |
763 | static int tipc_nl_compat_link_set(struct tipc_nl_compat_cmd_doit *cmd, |
764 | struct sk_buff *skb, | |
765 | struct tipc_nl_compat_msg *msg) | |
766 | { | |
767 | struct tipc_link_config *lc; | |
768 | struct tipc_bearer *bearer; | |
769 | struct tipc_media *media; | |
edf5ff04 | 770 | int len; |
c3d6fb85 RA |
771 | |
772 | lc = (struct tipc_link_config *)TLV_DATA(msg->req); | |
773 | ||
8c63bf9a XL |
774 | len = TLV_GET_DATA_LEN(msg->req); |
775 | len -= offsetof(struct tipc_link_config, name); | |
776 | if (len <= 0) | |
777 | return -EINVAL; | |
778 | ||
779 | len = min_t(int, len, TIPC_MAX_LINK_NAME); | |
edf5ff04 YX |
780 | if (!string_is_valid(lc->name, len)) |
781 | return -EINVAL; | |
782 | ||
c3d6fb85 RA |
783 | media = tipc_media_find(lc->name); |
784 | if (media) { | |
ed4ffdfe | 785 | cmd->doit = &__tipc_nl_media_set; |
c3d6fb85 RA |
786 | return tipc_nl_compat_media_set(skb, msg); |
787 | } | |
788 | ||
789 | bearer = tipc_bearer_find(msg->net, lc->name); | |
790 | if (bearer) { | |
ed4ffdfe | 791 | cmd->doit = &__tipc_nl_bearer_set; |
c3d6fb85 RA |
792 | return tipc_nl_compat_bearer_set(skb, msg); |
793 | } | |
794 | ||
795 | return __tipc_nl_compat_link_set(skb, msg); | |
796 | } | |
797 | ||
798 | static int tipc_nl_compat_link_reset_stats(struct tipc_nl_compat_cmd_doit *cmd, | |
799 | struct sk_buff *skb, | |
1817877b RA |
800 | struct tipc_nl_compat_msg *msg) |
801 | { | |
802 | char *name; | |
803 | struct nlattr *link; | |
8b66fee7 | 804 | int len; |
1817877b RA |
805 | |
806 | name = (char *)TLV_DATA(msg->req); | |
807 | ||
808 | link = nla_nest_start(skb, TIPC_NLA_LINK); | |
809 | if (!link) | |
810 | return -EMSGSIZE; | |
811 | ||
8b66fee7 YX |
812 | len = min_t(int, TLV_GET_DATA_LEN(msg->req), TIPC_MAX_LINK_NAME); |
813 | if (!string_is_valid(name, len)) | |
814 | return -EINVAL; | |
815 | ||
1817877b RA |
816 | if (nla_put_string(skb, TIPC_NLA_LINK_NAME, name)) |
817 | return -EMSGSIZE; | |
818 | ||
819 | nla_nest_end(skb, link); | |
820 | ||
821 | return 0; | |
822 | } | |
823 | ||
44a8ae94 RA |
824 | static int tipc_nl_compat_name_table_dump_header(struct tipc_nl_compat_msg *msg) |
825 | { | |
826 | int i; | |
827 | u32 depth; | |
828 | struct tipc_name_table_query *ntq; | |
829 | static const char * const header[] = { | |
830 | "Type ", | |
831 | "Lower Upper ", | |
832 | "Port Identity ", | |
833 | "Publication Scope" | |
834 | }; | |
835 | ||
836 | ntq = (struct tipc_name_table_query *)TLV_DATA(msg->req); | |
974cb0e3 YX |
837 | if (TLV_GET_DATA_LEN(msg->req) < sizeof(struct tipc_name_table_query)) |
838 | return -EINVAL; | |
44a8ae94 RA |
839 | |
840 | depth = ntohl(ntq->depth); | |
841 | ||
842 | if (depth > 4) | |
843 | depth = 4; | |
844 | for (i = 0; i < depth; i++) | |
845 | tipc_tlv_sprintf(msg->rep, header[i]); | |
846 | tipc_tlv_sprintf(msg->rep, "\n"); | |
847 | ||
848 | return 0; | |
849 | } | |
850 | ||
851 | static int tipc_nl_compat_name_table_dump(struct tipc_nl_compat_msg *msg, | |
852 | struct nlattr **attrs) | |
853 | { | |
854 | char port_str[27]; | |
855 | struct tipc_name_table_query *ntq; | |
856 | struct nlattr *nt[TIPC_NLA_NAME_TABLE_MAX + 1]; | |
857 | struct nlattr *publ[TIPC_NLA_PUBL_MAX + 1]; | |
858 | u32 node, depth, type, lowbound, upbound; | |
859 | static const char * const scope_str[] = {"", " zone", " cluster", | |
860 | " node"}; | |
297f7d2c | 861 | int err; |
44a8ae94 | 862 | |
297f7d2c BD |
863 | if (!attrs[TIPC_NLA_NAME_TABLE]) |
864 | return -EINVAL; | |
44a8ae94 | 865 | |
297f7d2c | 866 | err = nla_parse_nested(nt, TIPC_NLA_NAME_TABLE_MAX, |
fceb6435 | 867 | attrs[TIPC_NLA_NAME_TABLE], NULL, NULL); |
297f7d2c BD |
868 | if (err) |
869 | return err; | |
870 | ||
871 | if (!nt[TIPC_NLA_NAME_TABLE_PUBL]) | |
872 | return -EINVAL; | |
873 | ||
874 | err = nla_parse_nested(publ, TIPC_NLA_PUBL_MAX, | |
fceb6435 | 875 | nt[TIPC_NLA_NAME_TABLE_PUBL], NULL, NULL); |
297f7d2c BD |
876 | if (err) |
877 | return err; | |
44a8ae94 RA |
878 | |
879 | ntq = (struct tipc_name_table_query *)TLV_DATA(msg->req); | |
880 | ||
881 | depth = ntohl(ntq->depth); | |
882 | type = ntohl(ntq->type); | |
883 | lowbound = ntohl(ntq->lowbound); | |
884 | upbound = ntohl(ntq->upbound); | |
885 | ||
886 | if (!(depth & TIPC_NTQ_ALLTYPES) && | |
887 | (type != nla_get_u32(publ[TIPC_NLA_PUBL_TYPE]))) | |
888 | return 0; | |
889 | if (lowbound && (lowbound > nla_get_u32(publ[TIPC_NLA_PUBL_UPPER]))) | |
890 | return 0; | |
891 | if (upbound && (upbound < nla_get_u32(publ[TIPC_NLA_PUBL_LOWER]))) | |
892 | return 0; | |
893 | ||
894 | tipc_tlv_sprintf(msg->rep, "%-10u ", | |
895 | nla_get_u32(publ[TIPC_NLA_PUBL_TYPE])); | |
896 | ||
897 | if (depth == 1) | |
898 | goto out; | |
899 | ||
900 | tipc_tlv_sprintf(msg->rep, "%-10u %-10u ", | |
901 | nla_get_u32(publ[TIPC_NLA_PUBL_LOWER]), | |
902 | nla_get_u32(publ[TIPC_NLA_PUBL_UPPER])); | |
903 | ||
904 | if (depth == 2) | |
905 | goto out; | |
906 | ||
907 | node = nla_get_u32(publ[TIPC_NLA_PUBL_NODE]); | |
908 | sprintf(port_str, "<%u.%u.%u:%u>", tipc_zone(node), tipc_cluster(node), | |
909 | tipc_node(node), nla_get_u32(publ[TIPC_NLA_PUBL_REF])); | |
910 | tipc_tlv_sprintf(msg->rep, "%-26s ", port_str); | |
911 | ||
912 | if (depth == 3) | |
913 | goto out; | |
914 | ||
915 | tipc_tlv_sprintf(msg->rep, "%-10u %s", | |
03aaaa9b | 916 | nla_get_u32(publ[TIPC_NLA_PUBL_KEY]), |
44a8ae94 RA |
917 | scope_str[nla_get_u32(publ[TIPC_NLA_PUBL_SCOPE])]); |
918 | out: | |
919 | tipc_tlv_sprintf(msg->rep, "\n"); | |
920 | ||
921 | return 0; | |
922 | } | |
923 | ||
487d2a3a RA |
924 | static int __tipc_nl_compat_publ_dump(struct tipc_nl_compat_msg *msg, |
925 | struct nlattr **attrs) | |
926 | { | |
927 | u32 type, lower, upper; | |
928 | struct nlattr *publ[TIPC_NLA_PUBL_MAX + 1]; | |
297f7d2c | 929 | int err; |
487d2a3a | 930 | |
297f7d2c BD |
931 | if (!attrs[TIPC_NLA_PUBL]) |
932 | return -EINVAL; | |
933 | ||
934 | err = nla_parse_nested(publ, TIPC_NLA_PUBL_MAX, attrs[TIPC_NLA_PUBL], | |
fceb6435 | 935 | NULL, NULL); |
297f7d2c BD |
936 | if (err) |
937 | return err; | |
487d2a3a RA |
938 | |
939 | type = nla_get_u32(publ[TIPC_NLA_PUBL_TYPE]); | |
940 | lower = nla_get_u32(publ[TIPC_NLA_PUBL_LOWER]); | |
941 | upper = nla_get_u32(publ[TIPC_NLA_PUBL_UPPER]); | |
942 | ||
943 | if (lower == upper) | |
944 | tipc_tlv_sprintf(msg->rep, " {%u,%u}", type, lower); | |
945 | else | |
946 | tipc_tlv_sprintf(msg->rep, " {%u,%u,%u}", type, lower, upper); | |
947 | ||
948 | return 0; | |
949 | } | |
950 | ||
951 | static int tipc_nl_compat_publ_dump(struct tipc_nl_compat_msg *msg, u32 sock) | |
952 | { | |
953 | int err; | |
954 | void *hdr; | |
955 | struct nlattr *nest; | |
956 | struct sk_buff *args; | |
957 | struct tipc_nl_compat_cmd_dump dump; | |
958 | ||
959 | args = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
960 | if (!args) | |
961 | return -ENOMEM; | |
962 | ||
963 | hdr = genlmsg_put(args, 0, 0, &tipc_genl_family, NLM_F_MULTI, | |
964 | TIPC_NL_PUBL_GET); | |
f87d8ad9 GS |
965 | if (!hdr) { |
966 | kfree_skb(args); | |
46273cf7 | 967 | return -EMSGSIZE; |
f87d8ad9 | 968 | } |
487d2a3a RA |
969 | |
970 | nest = nla_nest_start(args, TIPC_NLA_SOCK); | |
971 | if (!nest) { | |
972 | kfree_skb(args); | |
973 | return -EMSGSIZE; | |
974 | } | |
975 | ||
976 | if (nla_put_u32(args, TIPC_NLA_SOCK_REF, sock)) { | |
977 | kfree_skb(args); | |
978 | return -EMSGSIZE; | |
979 | } | |
980 | ||
981 | nla_nest_end(args, nest); | |
982 | genlmsg_end(args, hdr); | |
983 | ||
984 | dump.dumpit = tipc_nl_publ_dump; | |
985 | dump.format = __tipc_nl_compat_publ_dump; | |
986 | ||
987 | err = __tipc_nl_compat_dumpit(&dump, msg, args); | |
988 | ||
989 | kfree_skb(args); | |
990 | ||
991 | return err; | |
992 | } | |
993 | ||
994 | static int tipc_nl_compat_sk_dump(struct tipc_nl_compat_msg *msg, | |
995 | struct nlattr **attrs) | |
996 | { | |
997 | int err; | |
998 | u32 sock_ref; | |
999 | struct nlattr *sock[TIPC_NLA_SOCK_MAX + 1]; | |
1000 | ||
297f7d2c BD |
1001 | if (!attrs[TIPC_NLA_SOCK]) |
1002 | return -EINVAL; | |
1003 | ||
1004 | err = nla_parse_nested(sock, TIPC_NLA_SOCK_MAX, attrs[TIPC_NLA_SOCK], | |
fceb6435 | 1005 | NULL, NULL); |
297f7d2c BD |
1006 | if (err) |
1007 | return err; | |
487d2a3a RA |
1008 | |
1009 | sock_ref = nla_get_u32(sock[TIPC_NLA_SOCK_REF]); | |
1010 | tipc_tlv_sprintf(msg->rep, "%u:", sock_ref); | |
1011 | ||
1012 | if (sock[TIPC_NLA_SOCK_CON]) { | |
1013 | u32 node; | |
1014 | struct nlattr *con[TIPC_NLA_CON_MAX + 1]; | |
1015 | ||
89dfd008 AP |
1016 | err = nla_parse_nested(con, TIPC_NLA_CON_MAX, |
1017 | sock[TIPC_NLA_SOCK_CON], NULL, NULL); | |
1018 | ||
1019 | if (err) | |
1020 | return err; | |
487d2a3a RA |
1021 | |
1022 | node = nla_get_u32(con[TIPC_NLA_CON_NODE]); | |
1023 | tipc_tlv_sprintf(msg->rep, " connected to <%u.%u.%u:%u>", | |
1024 | tipc_zone(node), | |
1025 | tipc_cluster(node), | |
1026 | tipc_node(node), | |
1027 | nla_get_u32(con[TIPC_NLA_CON_SOCK])); | |
1028 | ||
1029 | if (con[TIPC_NLA_CON_FLAG]) | |
1030 | tipc_tlv_sprintf(msg->rep, " via {%u,%u}\n", | |
1031 | nla_get_u32(con[TIPC_NLA_CON_TYPE]), | |
1032 | nla_get_u32(con[TIPC_NLA_CON_INST])); | |
1033 | else | |
1034 | tipc_tlv_sprintf(msg->rep, "\n"); | |
1035 | } else if (sock[TIPC_NLA_SOCK_HAS_PUBL]) { | |
1036 | tipc_tlv_sprintf(msg->rep, " bound to"); | |
1037 | ||
1038 | err = tipc_nl_compat_publ_dump(msg, sock_ref); | |
1039 | if (err) | |
1040 | return err; | |
1041 | } | |
1042 | tipc_tlv_sprintf(msg->rep, "\n"); | |
1043 | ||
1044 | return 0; | |
1045 | } | |
1046 | ||
5bfc335a RA |
1047 | static int tipc_nl_compat_media_dump(struct tipc_nl_compat_msg *msg, |
1048 | struct nlattr **attrs) | |
1049 | { | |
1050 | struct nlattr *media[TIPC_NLA_MEDIA_MAX + 1]; | |
297f7d2c BD |
1051 | int err; |
1052 | ||
1053 | if (!attrs[TIPC_NLA_MEDIA]) | |
1054 | return -EINVAL; | |
5bfc335a | 1055 | |
fceb6435 JB |
1056 | err = nla_parse_nested(media, TIPC_NLA_MEDIA_MAX, |
1057 | attrs[TIPC_NLA_MEDIA], NULL, NULL); | |
297f7d2c BD |
1058 | if (err) |
1059 | return err; | |
5bfc335a RA |
1060 | |
1061 | return tipc_add_tlv(msg->rep, TIPC_TLV_MEDIA_NAME, | |
1062 | nla_data(media[TIPC_NLA_MEDIA_NAME]), | |
1063 | nla_len(media[TIPC_NLA_MEDIA_NAME])); | |
1064 | } | |
1065 | ||
4b28cb58 RA |
1066 | static int tipc_nl_compat_node_dump(struct tipc_nl_compat_msg *msg, |
1067 | struct nlattr **attrs) | |
1068 | { | |
1069 | struct tipc_node_info node_info; | |
1070 | struct nlattr *node[TIPC_NLA_NODE_MAX + 1]; | |
297f7d2c | 1071 | int err; |
4b28cb58 | 1072 | |
297f7d2c BD |
1073 | if (!attrs[TIPC_NLA_NODE]) |
1074 | return -EINVAL; | |
1075 | ||
1076 | err = nla_parse_nested(node, TIPC_NLA_NODE_MAX, attrs[TIPC_NLA_NODE], | |
fceb6435 | 1077 | NULL, NULL); |
297f7d2c BD |
1078 | if (err) |
1079 | return err; | |
4b28cb58 RA |
1080 | |
1081 | node_info.addr = htonl(nla_get_u32(node[TIPC_NLA_NODE_ADDR])); | |
1082 | node_info.up = htonl(nla_get_flag(node[TIPC_NLA_NODE_UP])); | |
1083 | ||
1084 | return tipc_add_tlv(msg->rep, TIPC_TLV_NODE_INFO, &node_info, | |
1085 | sizeof(node_info)); | |
1086 | } | |
1087 | ||
c3d6fb85 RA |
1088 | static int tipc_nl_compat_net_set(struct tipc_nl_compat_cmd_doit *cmd, |
1089 | struct sk_buff *skb, | |
d7cc75d3 RA |
1090 | struct tipc_nl_compat_msg *msg) |
1091 | { | |
1092 | u32 val; | |
1093 | struct nlattr *net; | |
1094 | ||
1095 | val = ntohl(*(__be32 *)TLV_DATA(msg->req)); | |
1096 | ||
1097 | net = nla_nest_start(skb, TIPC_NLA_NET); | |
1098 | if (!net) | |
1099 | return -EMSGSIZE; | |
1100 | ||
964f9501 RA |
1101 | if (msg->cmd == TIPC_CMD_SET_NODE_ADDR) { |
1102 | if (nla_put_u32(skb, TIPC_NLA_NET_ADDR, val)) | |
1103 | return -EMSGSIZE; | |
1104 | } else if (msg->cmd == TIPC_CMD_SET_NETID) { | |
1105 | if (nla_put_u32(skb, TIPC_NLA_NET_ID, val)) | |
1106 | return -EMSGSIZE; | |
1107 | } | |
d7cc75d3 RA |
1108 | nla_nest_end(skb, net); |
1109 | ||
1110 | return 0; | |
1111 | } | |
1112 | ||
3c26181c RA |
1113 | static int tipc_nl_compat_net_dump(struct tipc_nl_compat_msg *msg, |
1114 | struct nlattr **attrs) | |
1115 | { | |
1116 | __be32 id; | |
1117 | struct nlattr *net[TIPC_NLA_NET_MAX + 1]; | |
297f7d2c BD |
1118 | int err; |
1119 | ||
1120 | if (!attrs[TIPC_NLA_NET]) | |
1121 | return -EINVAL; | |
1122 | ||
1123 | err = nla_parse_nested(net, TIPC_NLA_NET_MAX, attrs[TIPC_NLA_NET], | |
fceb6435 | 1124 | NULL, NULL); |
297f7d2c BD |
1125 | if (err) |
1126 | return err; | |
3c26181c | 1127 | |
3c26181c RA |
1128 | id = htonl(nla_get_u32(net[TIPC_NLA_NET_ID])); |
1129 | ||
1130 | return tipc_add_tlv(msg->rep, TIPC_TLV_UNSIGNED, &id, sizeof(id)); | |
1131 | } | |
1132 | ||
5a81a637 RA |
1133 | static int tipc_cmd_show_stats_compat(struct tipc_nl_compat_msg *msg) |
1134 | { | |
1135 | msg->rep = tipc_tlv_alloc(ULTRA_STRING_MAX_LEN); | |
1136 | if (!msg->rep) | |
1137 | return -ENOMEM; | |
1138 | ||
1139 | tipc_tlv_init(msg->rep, TIPC_TLV_ULTRA_STRING); | |
1140 | tipc_tlv_sprintf(msg->rep, "TIPC version " TIPC_MOD_VER "\n"); | |
1141 | ||
1142 | return 0; | |
1143 | } | |
1144 | ||
d0796d1e RA |
1145 | static int tipc_nl_compat_handle(struct tipc_nl_compat_msg *msg) |
1146 | { | |
1147 | struct tipc_nl_compat_cmd_dump dump; | |
9ab15465 | 1148 | struct tipc_nl_compat_cmd_doit doit; |
d0796d1e RA |
1149 | |
1150 | memset(&dump, 0, sizeof(dump)); | |
9ab15465 | 1151 | memset(&doit, 0, sizeof(doit)); |
d0796d1e RA |
1152 | |
1153 | switch (msg->cmd) { | |
22ae7cff RA |
1154 | case TIPC_CMD_NOOP: |
1155 | msg->rep = tipc_tlv_alloc(0); | |
1156 | if (!msg->rep) | |
1157 | return -ENOMEM; | |
1158 | return 0; | |
d0796d1e RA |
1159 | case TIPC_CMD_GET_BEARER_NAMES: |
1160 | msg->rep_size = MAX_BEARERS * TLV_SPACE(TIPC_MAX_BEARER_NAME); | |
1161 | dump.dumpit = tipc_nl_bearer_dump; | |
1162 | dump.format = tipc_nl_compat_bearer_dump; | |
1163 | return tipc_nl_compat_dumpit(&dump, msg); | |
9ab15465 RA |
1164 | case TIPC_CMD_ENABLE_BEARER: |
1165 | msg->req_type = TIPC_TLV_BEARER_CONFIG; | |
ed4ffdfe | 1166 | doit.doit = __tipc_nl_bearer_enable; |
9ab15465 RA |
1167 | doit.transcode = tipc_nl_compat_bearer_enable; |
1168 | return tipc_nl_compat_doit(&doit, msg); | |
1169 | case TIPC_CMD_DISABLE_BEARER: | |
1170 | msg->req_type = TIPC_TLV_BEARER_NAME; | |
ed4ffdfe | 1171 | doit.doit = __tipc_nl_bearer_disable; |
9ab15465 RA |
1172 | doit.transcode = tipc_nl_compat_bearer_disable; |
1173 | return tipc_nl_compat_doit(&doit, msg); | |
f2b3b2d4 RA |
1174 | case TIPC_CMD_SHOW_LINK_STATS: |
1175 | msg->req_type = TIPC_TLV_LINK_NAME; | |
1176 | msg->rep_size = ULTRA_STRING_MAX_LEN; | |
1177 | msg->rep_type = TIPC_TLV_ULTRA_STRING; | |
38206d59 | 1178 | dump.dumpit = tipc_nl_node_dump_link; |
f2b3b2d4 RA |
1179 | dump.format = tipc_nl_compat_link_stat_dump; |
1180 | return tipc_nl_compat_dumpit(&dump, msg); | |
357ebdbf RA |
1181 | case TIPC_CMD_GET_LINKS: |
1182 | msg->req_type = TIPC_TLV_NET_ADDR; | |
1183 | msg->rep_size = ULTRA_STRING_MAX_LEN; | |
38206d59 | 1184 | dump.dumpit = tipc_nl_node_dump_link; |
357ebdbf RA |
1185 | dump.format = tipc_nl_compat_link_dump; |
1186 | return tipc_nl_compat_dumpit(&dump, msg); | |
37e2d484 RA |
1187 | case TIPC_CMD_SET_LINK_TOL: |
1188 | case TIPC_CMD_SET_LINK_PRI: | |
1189 | case TIPC_CMD_SET_LINK_WINDOW: | |
1190 | msg->req_type = TIPC_TLV_LINK_CONFIG; | |
5be9c086 | 1191 | doit.doit = tipc_nl_node_set_link; |
37e2d484 RA |
1192 | doit.transcode = tipc_nl_compat_link_set; |
1193 | return tipc_nl_compat_doit(&doit, msg); | |
1817877b RA |
1194 | case TIPC_CMD_RESET_LINK_STATS: |
1195 | msg->req_type = TIPC_TLV_LINK_NAME; | |
5be9c086 | 1196 | doit.doit = tipc_nl_node_reset_link_stats; |
1817877b RA |
1197 | doit.transcode = tipc_nl_compat_link_reset_stats; |
1198 | return tipc_nl_compat_doit(&doit, msg); | |
44a8ae94 RA |
1199 | case TIPC_CMD_SHOW_NAME_TABLE: |
1200 | msg->req_type = TIPC_TLV_NAME_TBL_QUERY; | |
1201 | msg->rep_size = ULTRA_STRING_MAX_LEN; | |
1202 | msg->rep_type = TIPC_TLV_ULTRA_STRING; | |
1203 | dump.header = tipc_nl_compat_name_table_dump_header; | |
1204 | dump.dumpit = tipc_nl_name_table_dump; | |
1205 | dump.format = tipc_nl_compat_name_table_dump; | |
1206 | return tipc_nl_compat_dumpit(&dump, msg); | |
487d2a3a RA |
1207 | case TIPC_CMD_SHOW_PORTS: |
1208 | msg->rep_size = ULTRA_STRING_MAX_LEN; | |
1209 | msg->rep_type = TIPC_TLV_ULTRA_STRING; | |
1210 | dump.dumpit = tipc_nl_sk_dump; | |
1211 | dump.format = tipc_nl_compat_sk_dump; | |
1212 | return tipc_nl_compat_dumpit(&dump, msg); | |
5bfc335a RA |
1213 | case TIPC_CMD_GET_MEDIA_NAMES: |
1214 | msg->rep_size = MAX_MEDIA * TLV_SPACE(TIPC_MAX_MEDIA_NAME); | |
1215 | dump.dumpit = tipc_nl_media_dump; | |
1216 | dump.format = tipc_nl_compat_media_dump; | |
1217 | return tipc_nl_compat_dumpit(&dump, msg); | |
4b28cb58 RA |
1218 | case TIPC_CMD_GET_NODES: |
1219 | msg->rep_size = ULTRA_STRING_MAX_LEN; | |
1220 | dump.dumpit = tipc_nl_node_dump; | |
1221 | dump.format = tipc_nl_compat_node_dump; | |
1222 | return tipc_nl_compat_dumpit(&dump, msg); | |
d7cc75d3 RA |
1223 | case TIPC_CMD_SET_NODE_ADDR: |
1224 | msg->req_type = TIPC_TLV_NET_ADDR; | |
ed4ffdfe | 1225 | doit.doit = __tipc_nl_net_set; |
d7cc75d3 RA |
1226 | doit.transcode = tipc_nl_compat_net_set; |
1227 | return tipc_nl_compat_doit(&doit, msg); | |
964f9501 RA |
1228 | case TIPC_CMD_SET_NETID: |
1229 | msg->req_type = TIPC_TLV_UNSIGNED; | |
ed4ffdfe | 1230 | doit.doit = __tipc_nl_net_set; |
964f9501 RA |
1231 | doit.transcode = tipc_nl_compat_net_set; |
1232 | return tipc_nl_compat_doit(&doit, msg); | |
3c26181c RA |
1233 | case TIPC_CMD_GET_NETID: |
1234 | msg->rep_size = sizeof(u32); | |
1235 | dump.dumpit = tipc_nl_net_dump; | |
1236 | dump.format = tipc_nl_compat_net_dump; | |
1237 | return tipc_nl_compat_dumpit(&dump, msg); | |
5a81a637 RA |
1238 | case TIPC_CMD_SHOW_STATS: |
1239 | return tipc_cmd_show_stats_compat(msg); | |
d0796d1e RA |
1240 | } |
1241 | ||
1242 | return -EOPNOTSUPP; | |
1243 | } | |
1244 | ||
1245 | static int tipc_nl_compat_recv(struct sk_buff *skb, struct genl_info *info) | |
1246 | { | |
1247 | int err; | |
1248 | int len; | |
1249 | struct tipc_nl_compat_msg msg; | |
1250 | struct nlmsghdr *req_nlh; | |
1251 | struct nlmsghdr *rep_nlh; | |
1252 | struct tipc_genlmsghdr *req_userhdr = info->userhdr; | |
d0796d1e RA |
1253 | |
1254 | memset(&msg, 0, sizeof(msg)); | |
1255 | ||
1256 | req_nlh = (struct nlmsghdr *)skb->data; | |
1257 | msg.req = nlmsg_data(req_nlh) + GENL_HDRLEN + TIPC_GENL_HDRLEN; | |
1258 | msg.cmd = req_userhdr->cmd; | |
c3d6fb85 | 1259 | msg.net = genl_info_net(info); |
619b1745 | 1260 | msg.dst_sk = skb->sk; |
d0796d1e RA |
1261 | |
1262 | if ((msg.cmd & 0xC000) && (!netlink_net_capable(skb, CAP_NET_ADMIN))) { | |
1263 | msg.rep = tipc_get_err_tlv(TIPC_CFG_NOT_NET_ADMIN); | |
1264 | err = -EACCES; | |
1265 | goto send; | |
1266 | } | |
1267 | ||
1268 | len = nlmsg_attrlen(req_nlh, GENL_HDRLEN + TIPC_GENL_HDRLEN); | |
2753ca5d | 1269 | if (!len || !TLV_OK(msg.req, len)) { |
d0796d1e RA |
1270 | msg.rep = tipc_get_err_tlv(TIPC_CFG_NOT_SUPPORTED); |
1271 | err = -EOPNOTSUPP; | |
1272 | goto send; | |
1273 | } | |
1274 | ||
1275 | err = tipc_nl_compat_handle(&msg); | |
b063bc5e | 1276 | if ((err == -EOPNOTSUPP) || (err == -EPERM)) |
d0796d1e RA |
1277 | msg.rep = tipc_get_err_tlv(TIPC_CFG_NOT_SUPPORTED); |
1278 | else if (err == -EINVAL) | |
1279 | msg.rep = tipc_get_err_tlv(TIPC_CFG_TLV_ERROR); | |
1280 | send: | |
1281 | if (!msg.rep) | |
1282 | return err; | |
1283 | ||
1284 | len = nlmsg_total_size(GENL_HDRLEN + TIPC_GENL_HDRLEN); | |
1285 | skb_push(msg.rep, len); | |
1286 | rep_nlh = nlmsg_hdr(msg.rep); | |
1287 | memcpy(rep_nlh, info->nlhdr, len); | |
1288 | rep_nlh->nlmsg_len = msg.rep->len; | |
c3d6fb85 | 1289 | genlmsg_unicast(msg.net, msg.rep, NETLINK_CB(skb).portid); |
d0796d1e RA |
1290 | |
1291 | return err; | |
1292 | } | |
1293 | ||
042a9010 | 1294 | static const struct genl_ops tipc_genl_compat_ops[] = { |
489111e5 JB |
1295 | { |
1296 | .cmd = TIPC_GENL_CMD, | |
1297 | .doit = tipc_nl_compat_recv, | |
1298 | }, | |
1299 | }; | |
1300 | ||
56989f6d | 1301 | static struct genl_family tipc_genl_compat_family __ro_after_init = { |
bfb3e5dd RA |
1302 | .name = TIPC_GENL_NAME, |
1303 | .version = TIPC_GENL_VERSION, | |
1304 | .hdrsize = TIPC_GENL_HDRLEN, | |
1305 | .maxattr = 0, | |
1306 | .netnsok = true, | |
489111e5 JB |
1307 | .module = THIS_MODULE, |
1308 | .ops = tipc_genl_compat_ops, | |
1309 | .n_ops = ARRAY_SIZE(tipc_genl_compat_ops), | |
bfb3e5dd RA |
1310 | }; |
1311 | ||
56989f6d | 1312 | int __init tipc_netlink_compat_start(void) |
bfb3e5dd RA |
1313 | { |
1314 | int res; | |
1315 | ||
489111e5 | 1316 | res = genl_register_family(&tipc_genl_compat_family); |
bfb3e5dd RA |
1317 | if (res) { |
1318 | pr_err("Failed to register legacy compat interface\n"); | |
1319 | return res; | |
1320 | } | |
1321 | ||
1322 | return 0; | |
1323 | } | |
1324 | ||
1325 | void tipc_netlink_compat_stop(void) | |
1326 | { | |
1327 | genl_unregister_family(&tipc_genl_compat_family); | |
1328 | } |