Commit | Line | Data |
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bfb3e5dd RA |
1 | /* |
2 | * Copyright (c) 2014, Ericsson AB | |
3 | * All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms, with or without | |
6 | * modification, are permitted provided that the following conditions are met: | |
7 | * | |
8 | * 1. Redistributions of source code must retain the above copyright | |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * 2. Redistributions in binary form must reproduce the above copyright | |
11 | * notice, this list of conditions and the following disclaimer in the | |
12 | * documentation and/or other materials provided with the distribution. | |
13 | * 3. Neither the names of the copyright holders nor the names of its | |
14 | * contributors may be used to endorse or promote products derived from | |
15 | * this software without specific prior written permission. | |
16 | * | |
17 | * Alternatively, this software may be distributed under the terms of the | |
18 | * GNU General Public License ("GPL") version 2 as published by the Free | |
19 | * Software Foundation. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
22 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | |
25 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
26 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
27 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
28 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
29 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
30 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
31 | * POSSIBILITY OF SUCH DAMAGE. | |
32 | */ | |
33 | ||
34 | #include "core.h" | |
d0796d1e | 35 | #include "bearer.h" |
f2b3b2d4 | 36 | #include "link.h" |
44a8ae94 | 37 | #include "name_table.h" |
487d2a3a | 38 | #include "socket.h" |
4b28cb58 | 39 | #include "node.h" |
964f9501 | 40 | #include "net.h" |
bfb3e5dd RA |
41 | #include <net/genetlink.h> |
42 | #include <linux/tipc_config.h> | |
43 | ||
d0796d1e RA |
44 | /* The legacy API had an artificial message length limit called |
45 | * ULTRA_STRING_MAX_LEN. | |
46 | */ | |
47 | #define ULTRA_STRING_MAX_LEN 32768 | |
48 | ||
49 | #define TIPC_SKB_MAX TLV_SPACE(ULTRA_STRING_MAX_LEN) | |
50 | ||
51 | #define REPLY_TRUNCATED "<truncated>\n" | |
52 | ||
53 | struct tipc_nl_compat_msg { | |
54 | u16 cmd; | |
f2b3b2d4 | 55 | int rep_type; |
d0796d1e | 56 | int rep_size; |
9ab15465 | 57 | int req_type; |
c3d6fb85 | 58 | struct net *net; |
d0796d1e RA |
59 | struct sk_buff *rep; |
60 | struct tlv_desc *req; | |
61 | struct sock *dst_sk; | |
62 | }; | |
63 | ||
64 | struct tipc_nl_compat_cmd_dump { | |
44a8ae94 | 65 | int (*header)(struct tipc_nl_compat_msg *); |
d0796d1e RA |
66 | int (*dumpit)(struct sk_buff *, struct netlink_callback *); |
67 | int (*format)(struct tipc_nl_compat_msg *msg, struct nlattr **attrs); | |
68 | }; | |
69 | ||
9ab15465 RA |
70 | struct tipc_nl_compat_cmd_doit { |
71 | int (*doit)(struct sk_buff *skb, struct genl_info *info); | |
c3d6fb85 RA |
72 | int (*transcode)(struct tipc_nl_compat_cmd_doit *cmd, |
73 | struct sk_buff *skb, struct tipc_nl_compat_msg *msg); | |
9ab15465 RA |
74 | }; |
75 | ||
d0796d1e RA |
76 | static int tipc_skb_tailroom(struct sk_buff *skb) |
77 | { | |
78 | int tailroom; | |
79 | int limit; | |
80 | ||
81 | tailroom = skb_tailroom(skb); | |
82 | limit = TIPC_SKB_MAX - skb->len; | |
83 | ||
84 | if (tailroom < limit) | |
85 | return tailroom; | |
86 | ||
87 | return limit; | |
88 | } | |
89 | ||
90 | static int tipc_add_tlv(struct sk_buff *skb, u16 type, void *data, u16 len) | |
91 | { | |
92 | struct tlv_desc *tlv = (struct tlv_desc *)skb_tail_pointer(skb); | |
93 | ||
94 | if (tipc_skb_tailroom(skb) < TLV_SPACE(len)) | |
95 | return -EMSGSIZE; | |
96 | ||
97 | skb_put(skb, TLV_SPACE(len)); | |
98 | tlv->tlv_type = htons(type); | |
99 | tlv->tlv_len = htons(TLV_LENGTH(len)); | |
100 | if (len && data) | |
101 | memcpy(TLV_DATA(tlv), data, len); | |
102 | ||
103 | return 0; | |
104 | } | |
105 | ||
f2b3b2d4 RA |
106 | static void tipc_tlv_init(struct sk_buff *skb, u16 type) |
107 | { | |
108 | struct tlv_desc *tlv = (struct tlv_desc *)skb->data; | |
109 | ||
110 | TLV_SET_LEN(tlv, 0); | |
111 | TLV_SET_TYPE(tlv, type); | |
112 | skb_put(skb, sizeof(struct tlv_desc)); | |
113 | } | |
114 | ||
115 | static int tipc_tlv_sprintf(struct sk_buff *skb, const char *fmt, ...) | |
116 | { | |
117 | int n; | |
118 | u16 len; | |
119 | u32 rem; | |
120 | char *buf; | |
121 | struct tlv_desc *tlv; | |
122 | va_list args; | |
123 | ||
124 | rem = tipc_skb_tailroom(skb); | |
125 | ||
126 | tlv = (struct tlv_desc *)skb->data; | |
127 | len = TLV_GET_LEN(tlv); | |
128 | buf = TLV_DATA(tlv) + len; | |
129 | ||
130 | va_start(args, fmt); | |
131 | n = vscnprintf(buf, rem, fmt, args); | |
132 | va_end(args); | |
133 | ||
134 | TLV_SET_LEN(tlv, n + len); | |
135 | skb_put(skb, n); | |
136 | ||
137 | return n; | |
138 | } | |
139 | ||
d0796d1e RA |
140 | static struct sk_buff *tipc_tlv_alloc(int size) |
141 | { | |
142 | int hdr_len; | |
143 | struct sk_buff *buf; | |
144 | ||
145 | size = TLV_SPACE(size); | |
146 | hdr_len = nlmsg_total_size(GENL_HDRLEN + TIPC_GENL_HDRLEN); | |
147 | ||
148 | buf = alloc_skb(hdr_len + size, GFP_KERNEL); | |
149 | if (!buf) | |
150 | return NULL; | |
151 | ||
152 | skb_reserve(buf, hdr_len); | |
153 | ||
154 | return buf; | |
155 | } | |
156 | ||
157 | static struct sk_buff *tipc_get_err_tlv(char *str) | |
158 | { | |
159 | int str_len = strlen(str) + 1; | |
160 | struct sk_buff *buf; | |
161 | ||
162 | buf = tipc_tlv_alloc(TLV_SPACE(str_len)); | |
163 | if (buf) | |
164 | tipc_add_tlv(buf, TIPC_TLV_ERROR_STRING, str, str_len); | |
165 | ||
166 | return buf; | |
167 | } | |
168 | ||
169 | static int __tipc_nl_compat_dumpit(struct tipc_nl_compat_cmd_dump *cmd, | |
170 | struct tipc_nl_compat_msg *msg, | |
171 | struct sk_buff *arg) | |
172 | { | |
173 | int len = 0; | |
174 | int err; | |
175 | struct sk_buff *buf; | |
176 | struct nlmsghdr *nlmsg; | |
177 | struct netlink_callback cb; | |
178 | ||
179 | memset(&cb, 0, sizeof(cb)); | |
180 | cb.nlh = (struct nlmsghdr *)arg->data; | |
181 | cb.skb = arg; | |
182 | ||
183 | buf = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
184 | if (!buf) | |
185 | return -ENOMEM; | |
186 | ||
187 | buf->sk = msg->dst_sk; | |
12a78b02 CW |
188 | if (__tipc_dump_start(&cb, msg->net)) { |
189 | kfree_skb(buf); | |
190 | return -ENOMEM; | |
191 | } | |
d0796d1e RA |
192 | |
193 | do { | |
194 | int rem; | |
195 | ||
196 | len = (*cmd->dumpit)(buf, &cb); | |
197 | ||
198 | nlmsg_for_each_msg(nlmsg, nlmsg_hdr(buf), len, rem) { | |
199 | struct nlattr **attrs; | |
200 | ||
201 | err = tipc_nlmsg_parse(nlmsg, &attrs); | |
202 | if (err) | |
203 | goto err_out; | |
204 | ||
205 | err = (*cmd->format)(msg, attrs); | |
206 | if (err) | |
207 | goto err_out; | |
208 | ||
209 | if (tipc_skb_tailroom(msg->rep) <= 1) { | |
210 | err = -EMSGSIZE; | |
211 | goto err_out; | |
212 | } | |
213 | } | |
214 | ||
215 | skb_reset_tail_pointer(buf); | |
216 | buf->len = 0; | |
217 | ||
218 | } while (len); | |
219 | ||
220 | err = 0; | |
221 | ||
222 | err_out: | |
8f5c5fcf | 223 | tipc_dump_done(&cb); |
d0796d1e RA |
224 | kfree_skb(buf); |
225 | ||
226 | if (err == -EMSGSIZE) { | |
227 | /* The legacy API only considered messages filling | |
228 | * "ULTRA_STRING_MAX_LEN" to be truncated. | |
229 | */ | |
230 | if ((TIPC_SKB_MAX - msg->rep->len) <= 1) { | |
231 | char *tail = skb_tail_pointer(msg->rep); | |
232 | ||
233 | if (*tail != '\0') | |
234 | sprintf(tail - sizeof(REPLY_TRUNCATED) - 1, | |
235 | REPLY_TRUNCATED); | |
236 | } | |
237 | ||
238 | return 0; | |
239 | } | |
240 | ||
241 | return err; | |
242 | } | |
243 | ||
244 | static int tipc_nl_compat_dumpit(struct tipc_nl_compat_cmd_dump *cmd, | |
245 | struct tipc_nl_compat_msg *msg) | |
246 | { | |
247 | int err; | |
248 | struct sk_buff *arg; | |
249 | ||
f2b3b2d4 RA |
250 | if (msg->req_type && !TLV_CHECK_TYPE(msg->req, msg->req_type)) |
251 | return -EINVAL; | |
252 | ||
d0796d1e RA |
253 | msg->rep = tipc_tlv_alloc(msg->rep_size); |
254 | if (!msg->rep) | |
255 | return -ENOMEM; | |
256 | ||
f2b3b2d4 RA |
257 | if (msg->rep_type) |
258 | tipc_tlv_init(msg->rep, msg->rep_type); | |
259 | ||
44a8ae94 RA |
260 | if (cmd->header) |
261 | (*cmd->header)(msg); | |
262 | ||
d0796d1e RA |
263 | arg = nlmsg_new(0, GFP_KERNEL); |
264 | if (!arg) { | |
265 | kfree_skb(msg->rep); | |
5bfd37b4 | 266 | msg->rep = NULL; |
d0796d1e RA |
267 | return -ENOMEM; |
268 | } | |
269 | ||
270 | err = __tipc_nl_compat_dumpit(cmd, msg, arg); | |
5bfd37b4 | 271 | if (err) { |
d0796d1e | 272 | kfree_skb(msg->rep); |
5bfd37b4 ED |
273 | msg->rep = NULL; |
274 | } | |
d0796d1e RA |
275 | kfree_skb(arg); |
276 | ||
277 | return err; | |
278 | } | |
279 | ||
9ab15465 RA |
280 | static int __tipc_nl_compat_doit(struct tipc_nl_compat_cmd_doit *cmd, |
281 | struct tipc_nl_compat_msg *msg) | |
282 | { | |
283 | int err; | |
284 | struct sk_buff *doit_buf; | |
285 | struct sk_buff *trans_buf; | |
286 | struct nlattr **attrbuf; | |
287 | struct genl_info info; | |
288 | ||
289 | trans_buf = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL); | |
290 | if (!trans_buf) | |
291 | return -ENOMEM; | |
292 | ||
6da2ec56 KC |
293 | attrbuf = kmalloc_array(tipc_genl_family.maxattr + 1, |
294 | sizeof(struct nlattr *), | |
295 | GFP_KERNEL); | |
9ab15465 RA |
296 | if (!attrbuf) { |
297 | err = -ENOMEM; | |
298 | goto trans_out; | |
299 | } | |
300 | ||
9ab15465 RA |
301 | doit_buf = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL); |
302 | if (!doit_buf) { | |
303 | err = -ENOMEM; | |
e5d1a1ee | 304 | goto attrbuf_out; |
9ab15465 RA |
305 | } |
306 | ||
9ab15465 RA |
307 | memset(&info, 0, sizeof(info)); |
308 | info.attrs = attrbuf; | |
309 | ||
ed4ffdfe | 310 | rtnl_lock(); |
e5d1a1ee YX |
311 | err = (*cmd->transcode)(cmd, trans_buf, msg); |
312 | if (err) | |
313 | goto doit_out; | |
314 | ||
315 | err = nla_parse(attrbuf, tipc_genl_family.maxattr, | |
316 | (const struct nlattr *)trans_buf->data, | |
317 | trans_buf->len, NULL, NULL); | |
318 | if (err) | |
319 | goto doit_out; | |
320 | ||
321 | doit_buf->sk = msg->dst_sk; | |
322 | ||
9ab15465 | 323 | err = (*cmd->doit)(doit_buf, &info); |
e5d1a1ee | 324 | doit_out: |
ed4ffdfe | 325 | rtnl_unlock(); |
9ab15465 RA |
326 | |
327 | kfree_skb(doit_buf); | |
e5d1a1ee | 328 | attrbuf_out: |
9ab15465 RA |
329 | kfree(attrbuf); |
330 | trans_out: | |
331 | kfree_skb(trans_buf); | |
332 | ||
333 | return err; | |
334 | } | |
335 | ||
336 | static int tipc_nl_compat_doit(struct tipc_nl_compat_cmd_doit *cmd, | |
337 | struct tipc_nl_compat_msg *msg) | |
338 | { | |
339 | int err; | |
340 | ||
341 | if (msg->req_type && !TLV_CHECK_TYPE(msg->req, msg->req_type)) | |
342 | return -EINVAL; | |
343 | ||
344 | err = __tipc_nl_compat_doit(cmd, msg); | |
345 | if (err) | |
346 | return err; | |
347 | ||
348 | /* The legacy API considered an empty message a success message */ | |
349 | msg->rep = tipc_tlv_alloc(0); | |
350 | if (!msg->rep) | |
351 | return -ENOMEM; | |
352 | ||
353 | return 0; | |
354 | } | |
355 | ||
d0796d1e RA |
356 | static int tipc_nl_compat_bearer_dump(struct tipc_nl_compat_msg *msg, |
357 | struct nlattr **attrs) | |
358 | { | |
359 | struct nlattr *bearer[TIPC_NLA_BEARER_MAX + 1]; | |
297f7d2c BD |
360 | int err; |
361 | ||
362 | if (!attrs[TIPC_NLA_BEARER]) | |
363 | return -EINVAL; | |
d0796d1e | 364 | |
297f7d2c | 365 | err = nla_parse_nested(bearer, TIPC_NLA_BEARER_MAX, |
fceb6435 | 366 | attrs[TIPC_NLA_BEARER], NULL, NULL); |
297f7d2c BD |
367 | if (err) |
368 | return err; | |
d0796d1e RA |
369 | |
370 | return tipc_add_tlv(msg->rep, TIPC_TLV_BEARER_NAME, | |
371 | nla_data(bearer[TIPC_NLA_BEARER_NAME]), | |
372 | nla_len(bearer[TIPC_NLA_BEARER_NAME])); | |
373 | } | |
374 | ||
c3d6fb85 RA |
375 | static int tipc_nl_compat_bearer_enable(struct tipc_nl_compat_cmd_doit *cmd, |
376 | struct sk_buff *skb, | |
9ab15465 RA |
377 | struct tipc_nl_compat_msg *msg) |
378 | { | |
379 | struct nlattr *prop; | |
380 | struct nlattr *bearer; | |
381 | struct tipc_bearer_config *b; | |
382 | ||
383 | b = (struct tipc_bearer_config *)TLV_DATA(msg->req); | |
384 | ||
385 | bearer = nla_nest_start(skb, TIPC_NLA_BEARER); | |
386 | if (!bearer) | |
387 | return -EMSGSIZE; | |
388 | ||
389 | if (nla_put_string(skb, TIPC_NLA_BEARER_NAME, b->name)) | |
390 | return -EMSGSIZE; | |
391 | ||
392 | if (nla_put_u32(skb, TIPC_NLA_BEARER_DOMAIN, ntohl(b->disc_domain))) | |
393 | return -EMSGSIZE; | |
394 | ||
395 | if (ntohl(b->priority) <= TIPC_MAX_LINK_PRI) { | |
396 | prop = nla_nest_start(skb, TIPC_NLA_BEARER_PROP); | |
397 | if (!prop) | |
398 | return -EMSGSIZE; | |
399 | if (nla_put_u32(skb, TIPC_NLA_PROP_PRIO, ntohl(b->priority))) | |
400 | return -EMSGSIZE; | |
401 | nla_nest_end(skb, prop); | |
402 | } | |
403 | nla_nest_end(skb, bearer); | |
404 | ||
405 | return 0; | |
406 | } | |
407 | ||
c3d6fb85 RA |
408 | static int tipc_nl_compat_bearer_disable(struct tipc_nl_compat_cmd_doit *cmd, |
409 | struct sk_buff *skb, | |
9ab15465 RA |
410 | struct tipc_nl_compat_msg *msg) |
411 | { | |
412 | char *name; | |
413 | struct nlattr *bearer; | |
414 | ||
415 | name = (char *)TLV_DATA(msg->req); | |
416 | ||
417 | bearer = nla_nest_start(skb, TIPC_NLA_BEARER); | |
418 | if (!bearer) | |
419 | return -EMSGSIZE; | |
420 | ||
421 | if (nla_put_string(skb, TIPC_NLA_BEARER_NAME, name)) | |
422 | return -EMSGSIZE; | |
423 | ||
424 | nla_nest_end(skb, bearer); | |
425 | ||
426 | return 0; | |
427 | } | |
428 | ||
f2b3b2d4 RA |
429 | static inline u32 perc(u32 count, u32 total) |
430 | { | |
431 | return (count * 100 + (total / 2)) / total; | |
432 | } | |
433 | ||
434 | static void __fill_bc_link_stat(struct tipc_nl_compat_msg *msg, | |
435 | struct nlattr *prop[], struct nlattr *stats[]) | |
436 | { | |
437 | tipc_tlv_sprintf(msg->rep, " Window:%u packets\n", | |
438 | nla_get_u32(prop[TIPC_NLA_PROP_WIN])); | |
439 | ||
440 | tipc_tlv_sprintf(msg->rep, | |
441 | " RX packets:%u fragments:%u/%u bundles:%u/%u\n", | |
442 | nla_get_u32(stats[TIPC_NLA_STATS_RX_INFO]), | |
443 | nla_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTS]), | |
444 | nla_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTED]), | |
445 | nla_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLES]), | |
446 | nla_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLED])); | |
447 | ||
448 | tipc_tlv_sprintf(msg->rep, | |
449 | " TX packets:%u fragments:%u/%u bundles:%u/%u\n", | |
450 | nla_get_u32(stats[TIPC_NLA_STATS_TX_INFO]), | |
451 | nla_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTS]), | |
452 | nla_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTED]), | |
453 | nla_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLES]), | |
454 | nla_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLED])); | |
455 | ||
456 | tipc_tlv_sprintf(msg->rep, " RX naks:%u defs:%u dups:%u\n", | |
457 | nla_get_u32(stats[TIPC_NLA_STATS_RX_NACKS]), | |
458 | nla_get_u32(stats[TIPC_NLA_STATS_RX_DEFERRED]), | |
459 | nla_get_u32(stats[TIPC_NLA_STATS_DUPLICATES])); | |
460 | ||
461 | tipc_tlv_sprintf(msg->rep, " TX naks:%u acks:%u dups:%u\n", | |
462 | nla_get_u32(stats[TIPC_NLA_STATS_TX_NACKS]), | |
463 | nla_get_u32(stats[TIPC_NLA_STATS_TX_ACKS]), | |
464 | nla_get_u32(stats[TIPC_NLA_STATS_RETRANSMITTED])); | |
465 | ||
466 | tipc_tlv_sprintf(msg->rep, | |
467 | " Congestion link:%u Send queue max:%u avg:%u", | |
468 | nla_get_u32(stats[TIPC_NLA_STATS_LINK_CONGS]), | |
469 | nla_get_u32(stats[TIPC_NLA_STATS_MAX_QUEUE]), | |
470 | nla_get_u32(stats[TIPC_NLA_STATS_AVG_QUEUE])); | |
471 | } | |
472 | ||
473 | static int tipc_nl_compat_link_stat_dump(struct tipc_nl_compat_msg *msg, | |
474 | struct nlattr **attrs) | |
475 | { | |
476 | char *name; | |
477 | struct nlattr *link[TIPC_NLA_LINK_MAX + 1]; | |
478 | struct nlattr *prop[TIPC_NLA_PROP_MAX + 1]; | |
479 | struct nlattr *stats[TIPC_NLA_STATS_MAX + 1]; | |
297f7d2c | 480 | int err; |
f2b3b2d4 | 481 | |
297f7d2c BD |
482 | if (!attrs[TIPC_NLA_LINK]) |
483 | return -EINVAL; | |
f2b3b2d4 | 484 | |
297f7d2c | 485 | err = nla_parse_nested(link, TIPC_NLA_LINK_MAX, attrs[TIPC_NLA_LINK], |
fceb6435 | 486 | NULL, NULL); |
297f7d2c BD |
487 | if (err) |
488 | return err; | |
489 | ||
490 | if (!link[TIPC_NLA_LINK_PROP]) | |
491 | return -EINVAL; | |
f2b3b2d4 | 492 | |
297f7d2c | 493 | err = nla_parse_nested(prop, TIPC_NLA_PROP_MAX, |
fceb6435 | 494 | link[TIPC_NLA_LINK_PROP], NULL, NULL); |
297f7d2c BD |
495 | if (err) |
496 | return err; | |
497 | ||
498 | if (!link[TIPC_NLA_LINK_STATS]) | |
499 | return -EINVAL; | |
500 | ||
501 | err = nla_parse_nested(stats, TIPC_NLA_STATS_MAX, | |
fceb6435 | 502 | link[TIPC_NLA_LINK_STATS], NULL, NULL); |
297f7d2c BD |
503 | if (err) |
504 | return err; | |
f2b3b2d4 RA |
505 | |
506 | name = (char *)TLV_DATA(msg->req); | |
507 | if (strcmp(name, nla_data(link[TIPC_NLA_LINK_NAME])) != 0) | |
508 | return 0; | |
509 | ||
510 | tipc_tlv_sprintf(msg->rep, "\nLink <%s>\n", | |
511 | nla_data(link[TIPC_NLA_LINK_NAME])); | |
512 | ||
513 | if (link[TIPC_NLA_LINK_BROADCAST]) { | |
514 | __fill_bc_link_stat(msg, prop, stats); | |
515 | return 0; | |
516 | } | |
517 | ||
518 | if (link[TIPC_NLA_LINK_ACTIVE]) | |
519 | tipc_tlv_sprintf(msg->rep, " ACTIVE"); | |
520 | else if (link[TIPC_NLA_LINK_UP]) | |
521 | tipc_tlv_sprintf(msg->rep, " STANDBY"); | |
522 | else | |
523 | tipc_tlv_sprintf(msg->rep, " DEFUNCT"); | |
524 | ||
525 | tipc_tlv_sprintf(msg->rep, " MTU:%u Priority:%u", | |
526 | nla_get_u32(link[TIPC_NLA_LINK_MTU]), | |
527 | nla_get_u32(prop[TIPC_NLA_PROP_PRIO])); | |
528 | ||
529 | tipc_tlv_sprintf(msg->rep, " Tolerance:%u ms Window:%u packets\n", | |
530 | nla_get_u32(prop[TIPC_NLA_PROP_TOL]), | |
531 | nla_get_u32(prop[TIPC_NLA_PROP_WIN])); | |
532 | ||
533 | tipc_tlv_sprintf(msg->rep, | |
534 | " RX packets:%u fragments:%u/%u bundles:%u/%u\n", | |
535 | nla_get_u32(link[TIPC_NLA_LINK_RX]) - | |
536 | nla_get_u32(stats[TIPC_NLA_STATS_RX_INFO]), | |
537 | nla_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTS]), | |
538 | nla_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTED]), | |
539 | nla_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLES]), | |
540 | nla_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLED])); | |
541 | ||
542 | tipc_tlv_sprintf(msg->rep, | |
543 | " TX packets:%u fragments:%u/%u bundles:%u/%u\n", | |
544 | nla_get_u32(link[TIPC_NLA_LINK_TX]) - | |
545 | nla_get_u32(stats[TIPC_NLA_STATS_TX_INFO]), | |
546 | nla_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTS]), | |
547 | nla_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTED]), | |
548 | nla_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLES]), | |
549 | nla_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLED])); | |
550 | ||
551 | tipc_tlv_sprintf(msg->rep, | |
552 | " TX profile sample:%u packets average:%u octets\n", | |
553 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_CNT]), | |
554 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_TOT]) / | |
555 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])); | |
556 | ||
557 | tipc_tlv_sprintf(msg->rep, | |
558 | " 0-64:%u%% -256:%u%% -1024:%u%% -4096:%u%% ", | |
559 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P0]), | |
560 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])), | |
561 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P1]), | |
562 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])), | |
563 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P2]), | |
564 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])), | |
565 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P3]), | |
566 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT]))); | |
567 | ||
568 | tipc_tlv_sprintf(msg->rep, "-16384:%u%% -32768:%u%% -66000:%u%%\n", | |
569 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P4]), | |
570 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])), | |
571 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P5]), | |
572 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT])), | |
573 | perc(nla_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P6]), | |
574 | nla_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT]))); | |
575 | ||
576 | tipc_tlv_sprintf(msg->rep, | |
577 | " RX states:%u probes:%u naks:%u defs:%u dups:%u\n", | |
578 | nla_get_u32(stats[TIPC_NLA_STATS_RX_STATES]), | |
579 | nla_get_u32(stats[TIPC_NLA_STATS_RX_PROBES]), | |
580 | nla_get_u32(stats[TIPC_NLA_STATS_RX_NACKS]), | |
581 | nla_get_u32(stats[TIPC_NLA_STATS_RX_DEFERRED]), | |
582 | nla_get_u32(stats[TIPC_NLA_STATS_DUPLICATES])); | |
583 | ||
584 | tipc_tlv_sprintf(msg->rep, | |
585 | " TX states:%u probes:%u naks:%u acks:%u dups:%u\n", | |
586 | nla_get_u32(stats[TIPC_NLA_STATS_TX_STATES]), | |
587 | nla_get_u32(stats[TIPC_NLA_STATS_TX_PROBES]), | |
588 | nla_get_u32(stats[TIPC_NLA_STATS_TX_NACKS]), | |
589 | nla_get_u32(stats[TIPC_NLA_STATS_TX_ACKS]), | |
590 | nla_get_u32(stats[TIPC_NLA_STATS_RETRANSMITTED])); | |
591 | ||
592 | tipc_tlv_sprintf(msg->rep, | |
593 | " Congestion link:%u Send queue max:%u avg:%u", | |
594 | nla_get_u32(stats[TIPC_NLA_STATS_LINK_CONGS]), | |
595 | nla_get_u32(stats[TIPC_NLA_STATS_MAX_QUEUE]), | |
596 | nla_get_u32(stats[TIPC_NLA_STATS_AVG_QUEUE])); | |
597 | ||
598 | return 0; | |
599 | } | |
600 | ||
357ebdbf RA |
601 | static int tipc_nl_compat_link_dump(struct tipc_nl_compat_msg *msg, |
602 | struct nlattr **attrs) | |
603 | { | |
604 | struct nlattr *link[TIPC_NLA_LINK_MAX + 1]; | |
605 | struct tipc_link_info link_info; | |
297f7d2c | 606 | int err; |
357ebdbf | 607 | |
297f7d2c BD |
608 | if (!attrs[TIPC_NLA_LINK]) |
609 | return -EINVAL; | |
610 | ||
611 | err = nla_parse_nested(link, TIPC_NLA_LINK_MAX, attrs[TIPC_NLA_LINK], | |
fceb6435 | 612 | NULL, NULL); |
297f7d2c BD |
613 | if (err) |
614 | return err; | |
357ebdbf RA |
615 | |
616 | link_info.dest = nla_get_flag(link[TIPC_NLA_LINK_DEST]); | |
617 | link_info.up = htonl(nla_get_flag(link[TIPC_NLA_LINK_UP])); | |
55e77a3e | 618 | nla_strlcpy(link_info.str, link[TIPC_NLA_LINK_NAME], |
5d2be142 | 619 | TIPC_MAX_LINK_NAME); |
357ebdbf RA |
620 | |
621 | return tipc_add_tlv(msg->rep, TIPC_TLV_LINK_INFO, | |
622 | &link_info, sizeof(link_info)); | |
623 | } | |
624 | ||
c3d6fb85 RA |
625 | static int __tipc_add_link_prop(struct sk_buff *skb, |
626 | struct tipc_nl_compat_msg *msg, | |
627 | struct tipc_link_config *lc) | |
628 | { | |
629 | switch (msg->cmd) { | |
630 | case TIPC_CMD_SET_LINK_PRI: | |
631 | return nla_put_u32(skb, TIPC_NLA_PROP_PRIO, ntohl(lc->value)); | |
632 | case TIPC_CMD_SET_LINK_TOL: | |
633 | return nla_put_u32(skb, TIPC_NLA_PROP_TOL, ntohl(lc->value)); | |
634 | case TIPC_CMD_SET_LINK_WINDOW: | |
635 | return nla_put_u32(skb, TIPC_NLA_PROP_WIN, ntohl(lc->value)); | |
636 | } | |
637 | ||
638 | return -EINVAL; | |
639 | } | |
640 | ||
641 | static int tipc_nl_compat_media_set(struct sk_buff *skb, | |
642 | struct tipc_nl_compat_msg *msg) | |
37e2d484 | 643 | { |
37e2d484 | 644 | struct nlattr *prop; |
c3d6fb85 RA |
645 | struct nlattr *media; |
646 | struct tipc_link_config *lc; | |
647 | ||
648 | lc = (struct tipc_link_config *)TLV_DATA(msg->req); | |
649 | ||
650 | media = nla_nest_start(skb, TIPC_NLA_MEDIA); | |
651 | if (!media) | |
652 | return -EMSGSIZE; | |
653 | ||
654 | if (nla_put_string(skb, TIPC_NLA_MEDIA_NAME, lc->name)) | |
655 | return -EMSGSIZE; | |
656 | ||
657 | prop = nla_nest_start(skb, TIPC_NLA_MEDIA_PROP); | |
658 | if (!prop) | |
659 | return -EMSGSIZE; | |
660 | ||
661 | __tipc_add_link_prop(skb, msg, lc); | |
662 | nla_nest_end(skb, prop); | |
663 | nla_nest_end(skb, media); | |
664 | ||
665 | return 0; | |
666 | } | |
667 | ||
668 | static int tipc_nl_compat_bearer_set(struct sk_buff *skb, | |
669 | struct tipc_nl_compat_msg *msg) | |
670 | { | |
671 | struct nlattr *prop; | |
672 | struct nlattr *bearer; | |
673 | struct tipc_link_config *lc; | |
674 | ||
675 | lc = (struct tipc_link_config *)TLV_DATA(msg->req); | |
676 | ||
677 | bearer = nla_nest_start(skb, TIPC_NLA_BEARER); | |
678 | if (!bearer) | |
679 | return -EMSGSIZE; | |
680 | ||
681 | if (nla_put_string(skb, TIPC_NLA_BEARER_NAME, lc->name)) | |
682 | return -EMSGSIZE; | |
683 | ||
684 | prop = nla_nest_start(skb, TIPC_NLA_BEARER_PROP); | |
685 | if (!prop) | |
686 | return -EMSGSIZE; | |
687 | ||
688 | __tipc_add_link_prop(skb, msg, lc); | |
689 | nla_nest_end(skb, prop); | |
690 | nla_nest_end(skb, bearer); | |
691 | ||
692 | return 0; | |
693 | } | |
694 | ||
695 | static int __tipc_nl_compat_link_set(struct sk_buff *skb, | |
696 | struct tipc_nl_compat_msg *msg) | |
697 | { | |
698 | struct nlattr *prop; | |
699 | struct nlattr *link; | |
37e2d484 RA |
700 | struct tipc_link_config *lc; |
701 | ||
702 | lc = (struct tipc_link_config *)TLV_DATA(msg->req); | |
703 | ||
704 | link = nla_nest_start(skb, TIPC_NLA_LINK); | |
705 | if (!link) | |
706 | return -EMSGSIZE; | |
707 | ||
708 | if (nla_put_string(skb, TIPC_NLA_LINK_NAME, lc->name)) | |
709 | return -EMSGSIZE; | |
710 | ||
711 | prop = nla_nest_start(skb, TIPC_NLA_LINK_PROP); | |
712 | if (!prop) | |
713 | return -EMSGSIZE; | |
714 | ||
c3d6fb85 | 715 | __tipc_add_link_prop(skb, msg, lc); |
37e2d484 RA |
716 | nla_nest_end(skb, prop); |
717 | nla_nest_end(skb, link); | |
718 | ||
719 | return 0; | |
720 | } | |
721 | ||
c3d6fb85 RA |
722 | static int tipc_nl_compat_link_set(struct tipc_nl_compat_cmd_doit *cmd, |
723 | struct sk_buff *skb, | |
724 | struct tipc_nl_compat_msg *msg) | |
725 | { | |
726 | struct tipc_link_config *lc; | |
727 | struct tipc_bearer *bearer; | |
728 | struct tipc_media *media; | |
729 | ||
730 | lc = (struct tipc_link_config *)TLV_DATA(msg->req); | |
731 | ||
732 | media = tipc_media_find(lc->name); | |
733 | if (media) { | |
ed4ffdfe | 734 | cmd->doit = &__tipc_nl_media_set; |
c3d6fb85 RA |
735 | return tipc_nl_compat_media_set(skb, msg); |
736 | } | |
737 | ||
738 | bearer = tipc_bearer_find(msg->net, lc->name); | |
739 | if (bearer) { | |
ed4ffdfe | 740 | cmd->doit = &__tipc_nl_bearer_set; |
c3d6fb85 RA |
741 | return tipc_nl_compat_bearer_set(skb, msg); |
742 | } | |
743 | ||
744 | return __tipc_nl_compat_link_set(skb, msg); | |
745 | } | |
746 | ||
747 | static int tipc_nl_compat_link_reset_stats(struct tipc_nl_compat_cmd_doit *cmd, | |
748 | struct sk_buff *skb, | |
1817877b RA |
749 | struct tipc_nl_compat_msg *msg) |
750 | { | |
751 | char *name; | |
752 | struct nlattr *link; | |
753 | ||
754 | name = (char *)TLV_DATA(msg->req); | |
755 | ||
756 | link = nla_nest_start(skb, TIPC_NLA_LINK); | |
757 | if (!link) | |
758 | return -EMSGSIZE; | |
759 | ||
760 | if (nla_put_string(skb, TIPC_NLA_LINK_NAME, name)) | |
761 | return -EMSGSIZE; | |
762 | ||
763 | nla_nest_end(skb, link); | |
764 | ||
765 | return 0; | |
766 | } | |
767 | ||
44a8ae94 RA |
768 | static int tipc_nl_compat_name_table_dump_header(struct tipc_nl_compat_msg *msg) |
769 | { | |
770 | int i; | |
771 | u32 depth; | |
772 | struct tipc_name_table_query *ntq; | |
773 | static const char * const header[] = { | |
774 | "Type ", | |
775 | "Lower Upper ", | |
776 | "Port Identity ", | |
777 | "Publication Scope" | |
778 | }; | |
779 | ||
780 | ntq = (struct tipc_name_table_query *)TLV_DATA(msg->req); | |
781 | ||
782 | depth = ntohl(ntq->depth); | |
783 | ||
784 | if (depth > 4) | |
785 | depth = 4; | |
786 | for (i = 0; i < depth; i++) | |
787 | tipc_tlv_sprintf(msg->rep, header[i]); | |
788 | tipc_tlv_sprintf(msg->rep, "\n"); | |
789 | ||
790 | return 0; | |
791 | } | |
792 | ||
793 | static int tipc_nl_compat_name_table_dump(struct tipc_nl_compat_msg *msg, | |
794 | struct nlattr **attrs) | |
795 | { | |
796 | char port_str[27]; | |
797 | struct tipc_name_table_query *ntq; | |
798 | struct nlattr *nt[TIPC_NLA_NAME_TABLE_MAX + 1]; | |
799 | struct nlattr *publ[TIPC_NLA_PUBL_MAX + 1]; | |
800 | u32 node, depth, type, lowbound, upbound; | |
801 | static const char * const scope_str[] = {"", " zone", " cluster", | |
802 | " node"}; | |
297f7d2c | 803 | int err; |
44a8ae94 | 804 | |
297f7d2c BD |
805 | if (!attrs[TIPC_NLA_NAME_TABLE]) |
806 | return -EINVAL; | |
44a8ae94 | 807 | |
297f7d2c | 808 | err = nla_parse_nested(nt, TIPC_NLA_NAME_TABLE_MAX, |
fceb6435 | 809 | attrs[TIPC_NLA_NAME_TABLE], NULL, NULL); |
297f7d2c BD |
810 | if (err) |
811 | return err; | |
812 | ||
813 | if (!nt[TIPC_NLA_NAME_TABLE_PUBL]) | |
814 | return -EINVAL; | |
815 | ||
816 | err = nla_parse_nested(publ, TIPC_NLA_PUBL_MAX, | |
fceb6435 | 817 | nt[TIPC_NLA_NAME_TABLE_PUBL], NULL, NULL); |
297f7d2c BD |
818 | if (err) |
819 | return err; | |
44a8ae94 RA |
820 | |
821 | ntq = (struct tipc_name_table_query *)TLV_DATA(msg->req); | |
822 | ||
823 | depth = ntohl(ntq->depth); | |
824 | type = ntohl(ntq->type); | |
825 | lowbound = ntohl(ntq->lowbound); | |
826 | upbound = ntohl(ntq->upbound); | |
827 | ||
828 | if (!(depth & TIPC_NTQ_ALLTYPES) && | |
829 | (type != nla_get_u32(publ[TIPC_NLA_PUBL_TYPE]))) | |
830 | return 0; | |
831 | if (lowbound && (lowbound > nla_get_u32(publ[TIPC_NLA_PUBL_UPPER]))) | |
832 | return 0; | |
833 | if (upbound && (upbound < nla_get_u32(publ[TIPC_NLA_PUBL_LOWER]))) | |
834 | return 0; | |
835 | ||
836 | tipc_tlv_sprintf(msg->rep, "%-10u ", | |
837 | nla_get_u32(publ[TIPC_NLA_PUBL_TYPE])); | |
838 | ||
839 | if (depth == 1) | |
840 | goto out; | |
841 | ||
842 | tipc_tlv_sprintf(msg->rep, "%-10u %-10u ", | |
843 | nla_get_u32(publ[TIPC_NLA_PUBL_LOWER]), | |
844 | nla_get_u32(publ[TIPC_NLA_PUBL_UPPER])); | |
845 | ||
846 | if (depth == 2) | |
847 | goto out; | |
848 | ||
849 | node = nla_get_u32(publ[TIPC_NLA_PUBL_NODE]); | |
850 | sprintf(port_str, "<%u.%u.%u:%u>", tipc_zone(node), tipc_cluster(node), | |
851 | tipc_node(node), nla_get_u32(publ[TIPC_NLA_PUBL_REF])); | |
852 | tipc_tlv_sprintf(msg->rep, "%-26s ", port_str); | |
853 | ||
854 | if (depth == 3) | |
855 | goto out; | |
856 | ||
857 | tipc_tlv_sprintf(msg->rep, "%-10u %s", | |
03aaaa9b | 858 | nla_get_u32(publ[TIPC_NLA_PUBL_KEY]), |
44a8ae94 RA |
859 | scope_str[nla_get_u32(publ[TIPC_NLA_PUBL_SCOPE])]); |
860 | out: | |
861 | tipc_tlv_sprintf(msg->rep, "\n"); | |
862 | ||
863 | return 0; | |
864 | } | |
865 | ||
487d2a3a RA |
866 | static int __tipc_nl_compat_publ_dump(struct tipc_nl_compat_msg *msg, |
867 | struct nlattr **attrs) | |
868 | { | |
869 | u32 type, lower, upper; | |
870 | struct nlattr *publ[TIPC_NLA_PUBL_MAX + 1]; | |
297f7d2c | 871 | int err; |
487d2a3a | 872 | |
297f7d2c BD |
873 | if (!attrs[TIPC_NLA_PUBL]) |
874 | return -EINVAL; | |
875 | ||
876 | err = nla_parse_nested(publ, TIPC_NLA_PUBL_MAX, attrs[TIPC_NLA_PUBL], | |
fceb6435 | 877 | NULL, NULL); |
297f7d2c BD |
878 | if (err) |
879 | return err; | |
487d2a3a RA |
880 | |
881 | type = nla_get_u32(publ[TIPC_NLA_PUBL_TYPE]); | |
882 | lower = nla_get_u32(publ[TIPC_NLA_PUBL_LOWER]); | |
883 | upper = nla_get_u32(publ[TIPC_NLA_PUBL_UPPER]); | |
884 | ||
885 | if (lower == upper) | |
886 | tipc_tlv_sprintf(msg->rep, " {%u,%u}", type, lower); | |
887 | else | |
888 | tipc_tlv_sprintf(msg->rep, " {%u,%u,%u}", type, lower, upper); | |
889 | ||
890 | return 0; | |
891 | } | |
892 | ||
893 | static int tipc_nl_compat_publ_dump(struct tipc_nl_compat_msg *msg, u32 sock) | |
894 | { | |
895 | int err; | |
896 | void *hdr; | |
897 | struct nlattr *nest; | |
898 | struct sk_buff *args; | |
899 | struct tipc_nl_compat_cmd_dump dump; | |
900 | ||
901 | args = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
902 | if (!args) | |
903 | return -ENOMEM; | |
904 | ||
905 | hdr = genlmsg_put(args, 0, 0, &tipc_genl_family, NLM_F_MULTI, | |
906 | TIPC_NL_PUBL_GET); | |
907 | ||
908 | nest = nla_nest_start(args, TIPC_NLA_SOCK); | |
909 | if (!nest) { | |
910 | kfree_skb(args); | |
911 | return -EMSGSIZE; | |
912 | } | |
913 | ||
914 | if (nla_put_u32(args, TIPC_NLA_SOCK_REF, sock)) { | |
915 | kfree_skb(args); | |
916 | return -EMSGSIZE; | |
917 | } | |
918 | ||
919 | nla_nest_end(args, nest); | |
920 | genlmsg_end(args, hdr); | |
921 | ||
922 | dump.dumpit = tipc_nl_publ_dump; | |
923 | dump.format = __tipc_nl_compat_publ_dump; | |
924 | ||
925 | err = __tipc_nl_compat_dumpit(&dump, msg, args); | |
926 | ||
927 | kfree_skb(args); | |
928 | ||
929 | return err; | |
930 | } | |
931 | ||
932 | static int tipc_nl_compat_sk_dump(struct tipc_nl_compat_msg *msg, | |
933 | struct nlattr **attrs) | |
934 | { | |
935 | int err; | |
936 | u32 sock_ref; | |
937 | struct nlattr *sock[TIPC_NLA_SOCK_MAX + 1]; | |
938 | ||
297f7d2c BD |
939 | if (!attrs[TIPC_NLA_SOCK]) |
940 | return -EINVAL; | |
941 | ||
942 | err = nla_parse_nested(sock, TIPC_NLA_SOCK_MAX, attrs[TIPC_NLA_SOCK], | |
fceb6435 | 943 | NULL, NULL); |
297f7d2c BD |
944 | if (err) |
945 | return err; | |
487d2a3a RA |
946 | |
947 | sock_ref = nla_get_u32(sock[TIPC_NLA_SOCK_REF]); | |
948 | tipc_tlv_sprintf(msg->rep, "%u:", sock_ref); | |
949 | ||
950 | if (sock[TIPC_NLA_SOCK_CON]) { | |
951 | u32 node; | |
952 | struct nlattr *con[TIPC_NLA_CON_MAX + 1]; | |
953 | ||
fceb6435 JB |
954 | nla_parse_nested(con, TIPC_NLA_CON_MAX, |
955 | sock[TIPC_NLA_SOCK_CON], NULL, NULL); | |
487d2a3a RA |
956 | |
957 | node = nla_get_u32(con[TIPC_NLA_CON_NODE]); | |
958 | tipc_tlv_sprintf(msg->rep, " connected to <%u.%u.%u:%u>", | |
959 | tipc_zone(node), | |
960 | tipc_cluster(node), | |
961 | tipc_node(node), | |
962 | nla_get_u32(con[TIPC_NLA_CON_SOCK])); | |
963 | ||
964 | if (con[TIPC_NLA_CON_FLAG]) | |
965 | tipc_tlv_sprintf(msg->rep, " via {%u,%u}\n", | |
966 | nla_get_u32(con[TIPC_NLA_CON_TYPE]), | |
967 | nla_get_u32(con[TIPC_NLA_CON_INST])); | |
968 | else | |
969 | tipc_tlv_sprintf(msg->rep, "\n"); | |
970 | } else if (sock[TIPC_NLA_SOCK_HAS_PUBL]) { | |
971 | tipc_tlv_sprintf(msg->rep, " bound to"); | |
972 | ||
973 | err = tipc_nl_compat_publ_dump(msg, sock_ref); | |
974 | if (err) | |
975 | return err; | |
976 | } | |
977 | tipc_tlv_sprintf(msg->rep, "\n"); | |
978 | ||
979 | return 0; | |
980 | } | |
981 | ||
5bfc335a RA |
982 | static int tipc_nl_compat_media_dump(struct tipc_nl_compat_msg *msg, |
983 | struct nlattr **attrs) | |
984 | { | |
985 | struct nlattr *media[TIPC_NLA_MEDIA_MAX + 1]; | |
297f7d2c BD |
986 | int err; |
987 | ||
988 | if (!attrs[TIPC_NLA_MEDIA]) | |
989 | return -EINVAL; | |
5bfc335a | 990 | |
fceb6435 JB |
991 | err = nla_parse_nested(media, TIPC_NLA_MEDIA_MAX, |
992 | attrs[TIPC_NLA_MEDIA], NULL, NULL); | |
297f7d2c BD |
993 | if (err) |
994 | return err; | |
5bfc335a RA |
995 | |
996 | return tipc_add_tlv(msg->rep, TIPC_TLV_MEDIA_NAME, | |
997 | nla_data(media[TIPC_NLA_MEDIA_NAME]), | |
998 | nla_len(media[TIPC_NLA_MEDIA_NAME])); | |
999 | } | |
1000 | ||
4b28cb58 RA |
1001 | static int tipc_nl_compat_node_dump(struct tipc_nl_compat_msg *msg, |
1002 | struct nlattr **attrs) | |
1003 | { | |
1004 | struct tipc_node_info node_info; | |
1005 | struct nlattr *node[TIPC_NLA_NODE_MAX + 1]; | |
297f7d2c | 1006 | int err; |
4b28cb58 | 1007 | |
297f7d2c BD |
1008 | if (!attrs[TIPC_NLA_NODE]) |
1009 | return -EINVAL; | |
1010 | ||
1011 | err = nla_parse_nested(node, TIPC_NLA_NODE_MAX, attrs[TIPC_NLA_NODE], | |
fceb6435 | 1012 | NULL, NULL); |
297f7d2c BD |
1013 | if (err) |
1014 | return err; | |
4b28cb58 RA |
1015 | |
1016 | node_info.addr = htonl(nla_get_u32(node[TIPC_NLA_NODE_ADDR])); | |
1017 | node_info.up = htonl(nla_get_flag(node[TIPC_NLA_NODE_UP])); | |
1018 | ||
1019 | return tipc_add_tlv(msg->rep, TIPC_TLV_NODE_INFO, &node_info, | |
1020 | sizeof(node_info)); | |
1021 | } | |
1022 | ||
c3d6fb85 RA |
1023 | static int tipc_nl_compat_net_set(struct tipc_nl_compat_cmd_doit *cmd, |
1024 | struct sk_buff *skb, | |
d7cc75d3 RA |
1025 | struct tipc_nl_compat_msg *msg) |
1026 | { | |
1027 | u32 val; | |
1028 | struct nlattr *net; | |
1029 | ||
1030 | val = ntohl(*(__be32 *)TLV_DATA(msg->req)); | |
1031 | ||
1032 | net = nla_nest_start(skb, TIPC_NLA_NET); | |
1033 | if (!net) | |
1034 | return -EMSGSIZE; | |
1035 | ||
964f9501 RA |
1036 | if (msg->cmd == TIPC_CMD_SET_NODE_ADDR) { |
1037 | if (nla_put_u32(skb, TIPC_NLA_NET_ADDR, val)) | |
1038 | return -EMSGSIZE; | |
1039 | } else if (msg->cmd == TIPC_CMD_SET_NETID) { | |
1040 | if (nla_put_u32(skb, TIPC_NLA_NET_ID, val)) | |
1041 | return -EMSGSIZE; | |
1042 | } | |
d7cc75d3 RA |
1043 | nla_nest_end(skb, net); |
1044 | ||
1045 | return 0; | |
1046 | } | |
1047 | ||
3c26181c RA |
1048 | static int tipc_nl_compat_net_dump(struct tipc_nl_compat_msg *msg, |
1049 | struct nlattr **attrs) | |
1050 | { | |
1051 | __be32 id; | |
1052 | struct nlattr *net[TIPC_NLA_NET_MAX + 1]; | |
297f7d2c BD |
1053 | int err; |
1054 | ||
1055 | if (!attrs[TIPC_NLA_NET]) | |
1056 | return -EINVAL; | |
1057 | ||
1058 | err = nla_parse_nested(net, TIPC_NLA_NET_MAX, attrs[TIPC_NLA_NET], | |
fceb6435 | 1059 | NULL, NULL); |
297f7d2c BD |
1060 | if (err) |
1061 | return err; | |
3c26181c | 1062 | |
3c26181c RA |
1063 | id = htonl(nla_get_u32(net[TIPC_NLA_NET_ID])); |
1064 | ||
1065 | return tipc_add_tlv(msg->rep, TIPC_TLV_UNSIGNED, &id, sizeof(id)); | |
1066 | } | |
1067 | ||
5a81a637 RA |
1068 | static int tipc_cmd_show_stats_compat(struct tipc_nl_compat_msg *msg) |
1069 | { | |
1070 | msg->rep = tipc_tlv_alloc(ULTRA_STRING_MAX_LEN); | |
1071 | if (!msg->rep) | |
1072 | return -ENOMEM; | |
1073 | ||
1074 | tipc_tlv_init(msg->rep, TIPC_TLV_ULTRA_STRING); | |
1075 | tipc_tlv_sprintf(msg->rep, "TIPC version " TIPC_MOD_VER "\n"); | |
1076 | ||
1077 | return 0; | |
1078 | } | |
1079 | ||
d0796d1e RA |
1080 | static int tipc_nl_compat_handle(struct tipc_nl_compat_msg *msg) |
1081 | { | |
1082 | struct tipc_nl_compat_cmd_dump dump; | |
9ab15465 | 1083 | struct tipc_nl_compat_cmd_doit doit; |
d0796d1e RA |
1084 | |
1085 | memset(&dump, 0, sizeof(dump)); | |
9ab15465 | 1086 | memset(&doit, 0, sizeof(doit)); |
d0796d1e RA |
1087 | |
1088 | switch (msg->cmd) { | |
22ae7cff RA |
1089 | case TIPC_CMD_NOOP: |
1090 | msg->rep = tipc_tlv_alloc(0); | |
1091 | if (!msg->rep) | |
1092 | return -ENOMEM; | |
1093 | return 0; | |
d0796d1e RA |
1094 | case TIPC_CMD_GET_BEARER_NAMES: |
1095 | msg->rep_size = MAX_BEARERS * TLV_SPACE(TIPC_MAX_BEARER_NAME); | |
1096 | dump.dumpit = tipc_nl_bearer_dump; | |
1097 | dump.format = tipc_nl_compat_bearer_dump; | |
1098 | return tipc_nl_compat_dumpit(&dump, msg); | |
9ab15465 RA |
1099 | case TIPC_CMD_ENABLE_BEARER: |
1100 | msg->req_type = TIPC_TLV_BEARER_CONFIG; | |
ed4ffdfe | 1101 | doit.doit = __tipc_nl_bearer_enable; |
9ab15465 RA |
1102 | doit.transcode = tipc_nl_compat_bearer_enable; |
1103 | return tipc_nl_compat_doit(&doit, msg); | |
1104 | case TIPC_CMD_DISABLE_BEARER: | |
1105 | msg->req_type = TIPC_TLV_BEARER_NAME; | |
ed4ffdfe | 1106 | doit.doit = __tipc_nl_bearer_disable; |
9ab15465 RA |
1107 | doit.transcode = tipc_nl_compat_bearer_disable; |
1108 | return tipc_nl_compat_doit(&doit, msg); | |
f2b3b2d4 RA |
1109 | case TIPC_CMD_SHOW_LINK_STATS: |
1110 | msg->req_type = TIPC_TLV_LINK_NAME; | |
1111 | msg->rep_size = ULTRA_STRING_MAX_LEN; | |
1112 | msg->rep_type = TIPC_TLV_ULTRA_STRING; | |
38206d59 | 1113 | dump.dumpit = tipc_nl_node_dump_link; |
f2b3b2d4 RA |
1114 | dump.format = tipc_nl_compat_link_stat_dump; |
1115 | return tipc_nl_compat_dumpit(&dump, msg); | |
357ebdbf RA |
1116 | case TIPC_CMD_GET_LINKS: |
1117 | msg->req_type = TIPC_TLV_NET_ADDR; | |
1118 | msg->rep_size = ULTRA_STRING_MAX_LEN; | |
38206d59 | 1119 | dump.dumpit = tipc_nl_node_dump_link; |
357ebdbf RA |
1120 | dump.format = tipc_nl_compat_link_dump; |
1121 | return tipc_nl_compat_dumpit(&dump, msg); | |
37e2d484 RA |
1122 | case TIPC_CMD_SET_LINK_TOL: |
1123 | case TIPC_CMD_SET_LINK_PRI: | |
1124 | case TIPC_CMD_SET_LINK_WINDOW: | |
1125 | msg->req_type = TIPC_TLV_LINK_CONFIG; | |
5be9c086 | 1126 | doit.doit = tipc_nl_node_set_link; |
37e2d484 RA |
1127 | doit.transcode = tipc_nl_compat_link_set; |
1128 | return tipc_nl_compat_doit(&doit, msg); | |
1817877b RA |
1129 | case TIPC_CMD_RESET_LINK_STATS: |
1130 | msg->req_type = TIPC_TLV_LINK_NAME; | |
5be9c086 | 1131 | doit.doit = tipc_nl_node_reset_link_stats; |
1817877b RA |
1132 | doit.transcode = tipc_nl_compat_link_reset_stats; |
1133 | return tipc_nl_compat_doit(&doit, msg); | |
44a8ae94 RA |
1134 | case TIPC_CMD_SHOW_NAME_TABLE: |
1135 | msg->req_type = TIPC_TLV_NAME_TBL_QUERY; | |
1136 | msg->rep_size = ULTRA_STRING_MAX_LEN; | |
1137 | msg->rep_type = TIPC_TLV_ULTRA_STRING; | |
1138 | dump.header = tipc_nl_compat_name_table_dump_header; | |
1139 | dump.dumpit = tipc_nl_name_table_dump; | |
1140 | dump.format = tipc_nl_compat_name_table_dump; | |
1141 | return tipc_nl_compat_dumpit(&dump, msg); | |
487d2a3a RA |
1142 | case TIPC_CMD_SHOW_PORTS: |
1143 | msg->rep_size = ULTRA_STRING_MAX_LEN; | |
1144 | msg->rep_type = TIPC_TLV_ULTRA_STRING; | |
1145 | dump.dumpit = tipc_nl_sk_dump; | |
1146 | dump.format = tipc_nl_compat_sk_dump; | |
1147 | return tipc_nl_compat_dumpit(&dump, msg); | |
5bfc335a RA |
1148 | case TIPC_CMD_GET_MEDIA_NAMES: |
1149 | msg->rep_size = MAX_MEDIA * TLV_SPACE(TIPC_MAX_MEDIA_NAME); | |
1150 | dump.dumpit = tipc_nl_media_dump; | |
1151 | dump.format = tipc_nl_compat_media_dump; | |
1152 | return tipc_nl_compat_dumpit(&dump, msg); | |
4b28cb58 RA |
1153 | case TIPC_CMD_GET_NODES: |
1154 | msg->rep_size = ULTRA_STRING_MAX_LEN; | |
1155 | dump.dumpit = tipc_nl_node_dump; | |
1156 | dump.format = tipc_nl_compat_node_dump; | |
1157 | return tipc_nl_compat_dumpit(&dump, msg); | |
d7cc75d3 RA |
1158 | case TIPC_CMD_SET_NODE_ADDR: |
1159 | msg->req_type = TIPC_TLV_NET_ADDR; | |
ed4ffdfe | 1160 | doit.doit = __tipc_nl_net_set; |
d7cc75d3 RA |
1161 | doit.transcode = tipc_nl_compat_net_set; |
1162 | return tipc_nl_compat_doit(&doit, msg); | |
964f9501 RA |
1163 | case TIPC_CMD_SET_NETID: |
1164 | msg->req_type = TIPC_TLV_UNSIGNED; | |
ed4ffdfe | 1165 | doit.doit = __tipc_nl_net_set; |
964f9501 RA |
1166 | doit.transcode = tipc_nl_compat_net_set; |
1167 | return tipc_nl_compat_doit(&doit, msg); | |
3c26181c RA |
1168 | case TIPC_CMD_GET_NETID: |
1169 | msg->rep_size = sizeof(u32); | |
1170 | dump.dumpit = tipc_nl_net_dump; | |
1171 | dump.format = tipc_nl_compat_net_dump; | |
1172 | return tipc_nl_compat_dumpit(&dump, msg); | |
5a81a637 RA |
1173 | case TIPC_CMD_SHOW_STATS: |
1174 | return tipc_cmd_show_stats_compat(msg); | |
d0796d1e RA |
1175 | } |
1176 | ||
1177 | return -EOPNOTSUPP; | |
1178 | } | |
1179 | ||
1180 | static int tipc_nl_compat_recv(struct sk_buff *skb, struct genl_info *info) | |
1181 | { | |
1182 | int err; | |
1183 | int len; | |
1184 | struct tipc_nl_compat_msg msg; | |
1185 | struct nlmsghdr *req_nlh; | |
1186 | struct nlmsghdr *rep_nlh; | |
1187 | struct tipc_genlmsghdr *req_userhdr = info->userhdr; | |
d0796d1e RA |
1188 | |
1189 | memset(&msg, 0, sizeof(msg)); | |
1190 | ||
1191 | req_nlh = (struct nlmsghdr *)skb->data; | |
1192 | msg.req = nlmsg_data(req_nlh) + GENL_HDRLEN + TIPC_GENL_HDRLEN; | |
1193 | msg.cmd = req_userhdr->cmd; | |
c3d6fb85 | 1194 | msg.net = genl_info_net(info); |
619b1745 | 1195 | msg.dst_sk = skb->sk; |
d0796d1e RA |
1196 | |
1197 | if ((msg.cmd & 0xC000) && (!netlink_net_capable(skb, CAP_NET_ADMIN))) { | |
1198 | msg.rep = tipc_get_err_tlv(TIPC_CFG_NOT_NET_ADMIN); | |
1199 | err = -EACCES; | |
1200 | goto send; | |
1201 | } | |
1202 | ||
1203 | len = nlmsg_attrlen(req_nlh, GENL_HDRLEN + TIPC_GENL_HDRLEN); | |
8f8ff913 | 1204 | if (len && !TLV_OK(msg.req, len)) { |
d0796d1e RA |
1205 | msg.rep = tipc_get_err_tlv(TIPC_CFG_NOT_SUPPORTED); |
1206 | err = -EOPNOTSUPP; | |
1207 | goto send; | |
1208 | } | |
1209 | ||
1210 | err = tipc_nl_compat_handle(&msg); | |
b063bc5e | 1211 | if ((err == -EOPNOTSUPP) || (err == -EPERM)) |
d0796d1e RA |
1212 | msg.rep = tipc_get_err_tlv(TIPC_CFG_NOT_SUPPORTED); |
1213 | else if (err == -EINVAL) | |
1214 | msg.rep = tipc_get_err_tlv(TIPC_CFG_TLV_ERROR); | |
1215 | send: | |
1216 | if (!msg.rep) | |
1217 | return err; | |
1218 | ||
1219 | len = nlmsg_total_size(GENL_HDRLEN + TIPC_GENL_HDRLEN); | |
1220 | skb_push(msg.rep, len); | |
1221 | rep_nlh = nlmsg_hdr(msg.rep); | |
1222 | memcpy(rep_nlh, info->nlhdr, len); | |
1223 | rep_nlh->nlmsg_len = msg.rep->len; | |
c3d6fb85 | 1224 | genlmsg_unicast(msg.net, msg.rep, NETLINK_CB(skb).portid); |
d0796d1e RA |
1225 | |
1226 | return err; | |
1227 | } | |
1228 | ||
042a9010 | 1229 | static const struct genl_ops tipc_genl_compat_ops[] = { |
489111e5 JB |
1230 | { |
1231 | .cmd = TIPC_GENL_CMD, | |
1232 | .doit = tipc_nl_compat_recv, | |
1233 | }, | |
1234 | }; | |
1235 | ||
56989f6d | 1236 | static struct genl_family tipc_genl_compat_family __ro_after_init = { |
bfb3e5dd RA |
1237 | .name = TIPC_GENL_NAME, |
1238 | .version = TIPC_GENL_VERSION, | |
1239 | .hdrsize = TIPC_GENL_HDRLEN, | |
1240 | .maxattr = 0, | |
1241 | .netnsok = true, | |
489111e5 JB |
1242 | .module = THIS_MODULE, |
1243 | .ops = tipc_genl_compat_ops, | |
1244 | .n_ops = ARRAY_SIZE(tipc_genl_compat_ops), | |
bfb3e5dd RA |
1245 | }; |
1246 | ||
56989f6d | 1247 | int __init tipc_netlink_compat_start(void) |
bfb3e5dd RA |
1248 | { |
1249 | int res; | |
1250 | ||
489111e5 | 1251 | res = genl_register_family(&tipc_genl_compat_family); |
bfb3e5dd RA |
1252 | if (res) { |
1253 | pr_err("Failed to register legacy compat interface\n"); | |
1254 | return res; | |
1255 | } | |
1256 | ||
1257 | return 0; | |
1258 | } | |
1259 | ||
1260 | void tipc_netlink_compat_stop(void) | |
1261 | { | |
1262 | genl_unregister_family(&tipc_genl_compat_family); | |
1263 | } |