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bonding: add slave_changelink support and use it for queue_id
[mirror_ubuntu-bionic-kernel.git] / drivers / net / bonding / bond_netlink.c
1 /*
2 * drivers/net/bond/bond_netlink.c - Netlink interface for bonding
3 * Copyright (c) 2013 Jiri Pirko <jiri@resnulli.us>
4 * Copyright (c) 2013 Scott Feldman <sfeldma@cumulusnetworks.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 */
11
12 #include <linux/module.h>
13 #include <linux/errno.h>
14 #include <linux/netdevice.h>
15 #include <linux/etherdevice.h>
16 #include <linux/if_link.h>
17 #include <linux/if_ether.h>
18 #include <net/netlink.h>
19 #include <net/rtnetlink.h>
20 #include "bonding.h"
21
22 static size_t bond_get_slave_size(const struct net_device *bond_dev,
23 const struct net_device *slave_dev)
24 {
25 return nla_total_size(sizeof(u8)) + /* IFLA_BOND_SLAVE_STATE */
26 nla_total_size(sizeof(u8)) + /* IFLA_BOND_SLAVE_MII_STATUS */
27 nla_total_size(sizeof(u32)) + /* IFLA_BOND_SLAVE_LINK_FAILURE_COUNT */
28 nla_total_size(MAX_ADDR_LEN) + /* IFLA_BOND_SLAVE_PERM_HWADDR */
29 nla_total_size(sizeof(u16)) + /* IFLA_BOND_SLAVE_QUEUE_ID */
30 nla_total_size(sizeof(u16)) + /* IFLA_BOND_SLAVE_AD_AGGREGATOR_ID */
31 0;
32 }
33
34 static int bond_fill_slave_info(struct sk_buff *skb,
35 const struct net_device *bond_dev,
36 const struct net_device *slave_dev)
37 {
38 struct slave *slave = bond_slave_get_rtnl(slave_dev);
39
40 if (nla_put_u8(skb, IFLA_BOND_SLAVE_STATE, bond_slave_state(slave)))
41 goto nla_put_failure;
42
43 if (nla_put_u8(skb, IFLA_BOND_SLAVE_MII_STATUS, slave->link))
44 goto nla_put_failure;
45
46 if (nla_put_u32(skb, IFLA_BOND_SLAVE_LINK_FAILURE_COUNT,
47 slave->link_failure_count))
48 goto nla_put_failure;
49
50 if (nla_put(skb, IFLA_BOND_SLAVE_PERM_HWADDR,
51 slave_dev->addr_len, slave->perm_hwaddr))
52 goto nla_put_failure;
53
54 if (nla_put_u16(skb, IFLA_BOND_SLAVE_QUEUE_ID, slave->queue_id))
55 goto nla_put_failure;
56
57 if (BOND_MODE(slave->bond) == BOND_MODE_8023AD) {
58 const struct aggregator *agg;
59
60 agg = SLAVE_AD_INFO(slave)->port.aggregator;
61 if (agg)
62 if (nla_put_u16(skb, IFLA_BOND_SLAVE_AD_AGGREGATOR_ID,
63 agg->aggregator_identifier))
64 goto nla_put_failure;
65 }
66
67 return 0;
68
69 nla_put_failure:
70 return -EMSGSIZE;
71 }
72
73 static const struct nla_policy bond_policy[IFLA_BOND_MAX + 1] = {
74 [IFLA_BOND_MODE] = { .type = NLA_U8 },
75 [IFLA_BOND_ACTIVE_SLAVE] = { .type = NLA_U32 },
76 [IFLA_BOND_MIIMON] = { .type = NLA_U32 },
77 [IFLA_BOND_UPDELAY] = { .type = NLA_U32 },
78 [IFLA_BOND_DOWNDELAY] = { .type = NLA_U32 },
79 [IFLA_BOND_USE_CARRIER] = { .type = NLA_U8 },
80 [IFLA_BOND_ARP_INTERVAL] = { .type = NLA_U32 },
81 [IFLA_BOND_ARP_IP_TARGET] = { .type = NLA_NESTED },
82 [IFLA_BOND_ARP_VALIDATE] = { .type = NLA_U32 },
83 [IFLA_BOND_ARP_ALL_TARGETS] = { .type = NLA_U32 },
84 [IFLA_BOND_PRIMARY] = { .type = NLA_U32 },
85 [IFLA_BOND_PRIMARY_RESELECT] = { .type = NLA_U8 },
86 [IFLA_BOND_FAIL_OVER_MAC] = { .type = NLA_U8 },
87 [IFLA_BOND_XMIT_HASH_POLICY] = { .type = NLA_U8 },
88 [IFLA_BOND_RESEND_IGMP] = { .type = NLA_U32 },
89 [IFLA_BOND_NUM_PEER_NOTIF] = { .type = NLA_U8 },
90 [IFLA_BOND_ALL_SLAVES_ACTIVE] = { .type = NLA_U8 },
91 [IFLA_BOND_MIN_LINKS] = { .type = NLA_U32 },
92 [IFLA_BOND_LP_INTERVAL] = { .type = NLA_U32 },
93 [IFLA_BOND_PACKETS_PER_SLAVE] = { .type = NLA_U32 },
94 [IFLA_BOND_AD_LACP_RATE] = { .type = NLA_U8 },
95 [IFLA_BOND_AD_SELECT] = { .type = NLA_U8 },
96 [IFLA_BOND_AD_INFO] = { .type = NLA_NESTED },
97 };
98
99 static int bond_validate(struct nlattr *tb[], struct nlattr *data[])
100 {
101 if (tb[IFLA_ADDRESS]) {
102 if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN)
103 return -EINVAL;
104 if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS])))
105 return -EADDRNOTAVAIL;
106 }
107 return 0;
108 }
109
110 static int bond_slave_changelink(struct net_device *bond_dev,
111 struct net_device *slave_dev,
112 struct nlattr *tb[], struct nlattr *data[])
113 {
114 struct bonding *bond = netdev_priv(bond_dev);
115 struct bond_opt_value newval;
116 int err;
117
118 if (!data)
119 return 0;
120
121 if (data[IFLA_BOND_SLAVE_QUEUE_ID]) {
122 u16 queue_id = nla_get_u16(data[IFLA_BOND_SLAVE_QUEUE_ID]);
123 char queue_id_str[IFNAMSIZ + 7];
124
125 /* queue_id option setting expects slave_name:queue_id */
126 snprintf(queue_id_str, sizeof(queue_id_str), "%s:%u\n",
127 slave_dev->name, queue_id);
128 bond_opt_initstr(&newval, queue_id_str);
129 err = __bond_opt_set(bond, BOND_OPT_QUEUE_ID, &newval);
130 if (err)
131 return err;
132 }
133
134 return 0;
135 }
136
137 static int bond_changelink(struct net_device *bond_dev,
138 struct nlattr *tb[], struct nlattr *data[])
139 {
140 struct bonding *bond = netdev_priv(bond_dev);
141 struct bond_opt_value newval;
142 int miimon = 0;
143 int err;
144
145 if (!data)
146 return 0;
147
148 if (data[IFLA_BOND_MODE]) {
149 int mode = nla_get_u8(data[IFLA_BOND_MODE]);
150
151 bond_opt_initval(&newval, mode);
152 err = __bond_opt_set(bond, BOND_OPT_MODE, &newval);
153 if (err)
154 return err;
155 }
156 if (data[IFLA_BOND_ACTIVE_SLAVE]) {
157 int ifindex = nla_get_u32(data[IFLA_BOND_ACTIVE_SLAVE]);
158 struct net_device *slave_dev;
159 char *active_slave = "";
160
161 if (ifindex != 0) {
162 slave_dev = __dev_get_by_index(dev_net(bond_dev),
163 ifindex);
164 if (!slave_dev)
165 return -ENODEV;
166 active_slave = slave_dev->name;
167 }
168 bond_opt_initstr(&newval, active_slave);
169 err = __bond_opt_set(bond, BOND_OPT_ACTIVE_SLAVE, &newval);
170 if (err)
171 return err;
172 }
173 if (data[IFLA_BOND_MIIMON]) {
174 miimon = nla_get_u32(data[IFLA_BOND_MIIMON]);
175
176 bond_opt_initval(&newval, miimon);
177 err = __bond_opt_set(bond, BOND_OPT_MIIMON, &newval);
178 if (err)
179 return err;
180 }
181 if (data[IFLA_BOND_UPDELAY]) {
182 int updelay = nla_get_u32(data[IFLA_BOND_UPDELAY]);
183
184 bond_opt_initval(&newval, updelay);
185 err = __bond_opt_set(bond, BOND_OPT_UPDELAY, &newval);
186 if (err)
187 return err;
188 }
189 if (data[IFLA_BOND_DOWNDELAY]) {
190 int downdelay = nla_get_u32(data[IFLA_BOND_DOWNDELAY]);
191
192 bond_opt_initval(&newval, downdelay);
193 err = __bond_opt_set(bond, BOND_OPT_DOWNDELAY, &newval);
194 if (err)
195 return err;
196 }
197 if (data[IFLA_BOND_USE_CARRIER]) {
198 int use_carrier = nla_get_u8(data[IFLA_BOND_USE_CARRIER]);
199
200 bond_opt_initval(&newval, use_carrier);
201 err = __bond_opt_set(bond, BOND_OPT_USE_CARRIER, &newval);
202 if (err)
203 return err;
204 }
205 if (data[IFLA_BOND_ARP_INTERVAL]) {
206 int arp_interval = nla_get_u32(data[IFLA_BOND_ARP_INTERVAL]);
207
208 if (arp_interval && miimon) {
209 netdev_err(bond->dev, "ARP monitoring cannot be used with MII monitoring\n");
210 return -EINVAL;
211 }
212
213 bond_opt_initval(&newval, arp_interval);
214 err = __bond_opt_set(bond, BOND_OPT_ARP_INTERVAL, &newval);
215 if (err)
216 return err;
217 }
218 if (data[IFLA_BOND_ARP_IP_TARGET]) {
219 struct nlattr *attr;
220 int i = 0, rem;
221
222 bond_option_arp_ip_targets_clear(bond);
223 nla_for_each_nested(attr, data[IFLA_BOND_ARP_IP_TARGET], rem) {
224 __be32 target = nla_get_be32(attr);
225
226 bond_opt_initval(&newval, (__force u64)target);
227 err = __bond_opt_set(bond, BOND_OPT_ARP_TARGETS,
228 &newval);
229 if (err)
230 break;
231 i++;
232 }
233 if (i == 0 && bond->params.arp_interval)
234 netdev_warn(bond->dev, "Removing last arp target with arp_interval on\n");
235 if (err)
236 return err;
237 }
238 if (data[IFLA_BOND_ARP_VALIDATE]) {
239 int arp_validate = nla_get_u32(data[IFLA_BOND_ARP_VALIDATE]);
240
241 if (arp_validate && miimon) {
242 netdev_err(bond->dev, "ARP validating cannot be used with MII monitoring\n");
243 return -EINVAL;
244 }
245
246 bond_opt_initval(&newval, arp_validate);
247 err = __bond_opt_set(bond, BOND_OPT_ARP_VALIDATE, &newval);
248 if (err)
249 return err;
250 }
251 if (data[IFLA_BOND_ARP_ALL_TARGETS]) {
252 int arp_all_targets =
253 nla_get_u32(data[IFLA_BOND_ARP_ALL_TARGETS]);
254
255 bond_opt_initval(&newval, arp_all_targets);
256 err = __bond_opt_set(bond, BOND_OPT_ARP_ALL_TARGETS, &newval);
257 if (err)
258 return err;
259 }
260 if (data[IFLA_BOND_PRIMARY]) {
261 int ifindex = nla_get_u32(data[IFLA_BOND_PRIMARY]);
262 struct net_device *dev;
263 char *primary = "";
264
265 dev = __dev_get_by_index(dev_net(bond_dev), ifindex);
266 if (dev)
267 primary = dev->name;
268
269 bond_opt_initstr(&newval, primary);
270 err = __bond_opt_set(bond, BOND_OPT_PRIMARY, &newval);
271 if (err)
272 return err;
273 }
274 if (data[IFLA_BOND_PRIMARY_RESELECT]) {
275 int primary_reselect =
276 nla_get_u8(data[IFLA_BOND_PRIMARY_RESELECT]);
277
278 bond_opt_initval(&newval, primary_reselect);
279 err = __bond_opt_set(bond, BOND_OPT_PRIMARY_RESELECT, &newval);
280 if (err)
281 return err;
282 }
283 if (data[IFLA_BOND_FAIL_OVER_MAC]) {
284 int fail_over_mac =
285 nla_get_u8(data[IFLA_BOND_FAIL_OVER_MAC]);
286
287 bond_opt_initval(&newval, fail_over_mac);
288 err = __bond_opt_set(bond, BOND_OPT_FAIL_OVER_MAC, &newval);
289 if (err)
290 return err;
291 }
292 if (data[IFLA_BOND_XMIT_HASH_POLICY]) {
293 int xmit_hash_policy =
294 nla_get_u8(data[IFLA_BOND_XMIT_HASH_POLICY]);
295
296 bond_opt_initval(&newval, xmit_hash_policy);
297 err = __bond_opt_set(bond, BOND_OPT_XMIT_HASH, &newval);
298 if (err)
299 return err;
300 }
301 if (data[IFLA_BOND_RESEND_IGMP]) {
302 int resend_igmp =
303 nla_get_u32(data[IFLA_BOND_RESEND_IGMP]);
304
305 bond_opt_initval(&newval, resend_igmp);
306 err = __bond_opt_set(bond, BOND_OPT_RESEND_IGMP, &newval);
307 if (err)
308 return err;
309 }
310 if (data[IFLA_BOND_NUM_PEER_NOTIF]) {
311 int num_peer_notif =
312 nla_get_u8(data[IFLA_BOND_NUM_PEER_NOTIF]);
313
314 bond_opt_initval(&newval, num_peer_notif);
315 err = __bond_opt_set(bond, BOND_OPT_NUM_PEER_NOTIF, &newval);
316 if (err)
317 return err;
318 }
319 if (data[IFLA_BOND_ALL_SLAVES_ACTIVE]) {
320 int all_slaves_active =
321 nla_get_u8(data[IFLA_BOND_ALL_SLAVES_ACTIVE]);
322
323 bond_opt_initval(&newval, all_slaves_active);
324 err = __bond_opt_set(bond, BOND_OPT_ALL_SLAVES_ACTIVE, &newval);
325 if (err)
326 return err;
327 }
328 if (data[IFLA_BOND_MIN_LINKS]) {
329 int min_links =
330 nla_get_u32(data[IFLA_BOND_MIN_LINKS]);
331
332 bond_opt_initval(&newval, min_links);
333 err = __bond_opt_set(bond, BOND_OPT_MINLINKS, &newval);
334 if (err)
335 return err;
336 }
337 if (data[IFLA_BOND_LP_INTERVAL]) {
338 int lp_interval =
339 nla_get_u32(data[IFLA_BOND_LP_INTERVAL]);
340
341 bond_opt_initval(&newval, lp_interval);
342 err = __bond_opt_set(bond, BOND_OPT_LP_INTERVAL, &newval);
343 if (err)
344 return err;
345 }
346 if (data[IFLA_BOND_PACKETS_PER_SLAVE]) {
347 int packets_per_slave =
348 nla_get_u32(data[IFLA_BOND_PACKETS_PER_SLAVE]);
349
350 bond_opt_initval(&newval, packets_per_slave);
351 err = __bond_opt_set(bond, BOND_OPT_PACKETS_PER_SLAVE, &newval);
352 if (err)
353 return err;
354 }
355 if (data[IFLA_BOND_AD_LACP_RATE]) {
356 int lacp_rate =
357 nla_get_u8(data[IFLA_BOND_AD_LACP_RATE]);
358
359 bond_opt_initval(&newval, lacp_rate);
360 err = __bond_opt_set(bond, BOND_OPT_LACP_RATE, &newval);
361 if (err)
362 return err;
363 }
364 if (data[IFLA_BOND_AD_SELECT]) {
365 int ad_select =
366 nla_get_u8(data[IFLA_BOND_AD_SELECT]);
367
368 bond_opt_initval(&newval, ad_select);
369 err = __bond_opt_set(bond, BOND_OPT_AD_SELECT, &newval);
370 if (err)
371 return err;
372 }
373 return 0;
374 }
375
376 static int bond_newlink(struct net *src_net, struct net_device *bond_dev,
377 struct nlattr *tb[], struct nlattr *data[])
378 {
379 int err;
380
381 err = bond_changelink(bond_dev, tb, data);
382 if (err < 0)
383 return err;
384
385 return register_netdevice(bond_dev);
386 }
387
388 static size_t bond_get_size(const struct net_device *bond_dev)
389 {
390 return nla_total_size(sizeof(u8)) + /* IFLA_BOND_MODE */
391 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ACTIVE_SLAVE */
392 nla_total_size(sizeof(u32)) + /* IFLA_BOND_MIIMON */
393 nla_total_size(sizeof(u32)) + /* IFLA_BOND_UPDELAY */
394 nla_total_size(sizeof(u32)) + /* IFLA_BOND_DOWNDELAY */
395 nla_total_size(sizeof(u8)) + /* IFLA_BOND_USE_CARRIER */
396 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_INTERVAL */
397 /* IFLA_BOND_ARP_IP_TARGET */
398 nla_total_size(sizeof(struct nlattr)) +
399 nla_total_size(sizeof(u32)) * BOND_MAX_ARP_TARGETS +
400 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_VALIDATE */
401 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_ALL_TARGETS */
402 nla_total_size(sizeof(u32)) + /* IFLA_BOND_PRIMARY */
403 nla_total_size(sizeof(u8)) + /* IFLA_BOND_PRIMARY_RESELECT */
404 nla_total_size(sizeof(u8)) + /* IFLA_BOND_FAIL_OVER_MAC */
405 nla_total_size(sizeof(u8)) + /* IFLA_BOND_XMIT_HASH_POLICY */
406 nla_total_size(sizeof(u32)) + /* IFLA_BOND_RESEND_IGMP */
407 nla_total_size(sizeof(u8)) + /* IFLA_BOND_NUM_PEER_NOTIF */
408 nla_total_size(sizeof(u8)) + /* IFLA_BOND_ALL_SLAVES_ACTIVE */
409 nla_total_size(sizeof(u32)) + /* IFLA_BOND_MIN_LINKS */
410 nla_total_size(sizeof(u32)) + /* IFLA_BOND_LP_INTERVAL */
411 nla_total_size(sizeof(u32)) + /* IFLA_BOND_PACKETS_PER_SLAVE */
412 nla_total_size(sizeof(u8)) + /* IFLA_BOND_AD_LACP_RATE */
413 nla_total_size(sizeof(u8)) + /* IFLA_BOND_AD_SELECT */
414 nla_total_size(sizeof(struct nlattr)) + /* IFLA_BOND_AD_INFO */
415 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_AGGREGATOR */
416 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_NUM_PORTS */
417 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_ACTOR_KEY */
418 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_PARTNER_KEY*/
419 nla_total_size(ETH_ALEN) + /* IFLA_BOND_AD_INFO_PARTNER_MAC*/
420 0;
421 }
422
423 static int bond_option_active_slave_get_ifindex(struct bonding *bond)
424 {
425 const struct net_device *slave;
426 int ifindex;
427
428 rcu_read_lock();
429 slave = bond_option_active_slave_get_rcu(bond);
430 ifindex = slave ? slave->ifindex : 0;
431 rcu_read_unlock();
432 return ifindex;
433 }
434
435 static int bond_fill_info(struct sk_buff *skb,
436 const struct net_device *bond_dev)
437 {
438 struct bonding *bond = netdev_priv(bond_dev);
439 unsigned int packets_per_slave;
440 int ifindex, i, targets_added;
441 struct nlattr *targets;
442
443 if (nla_put_u8(skb, IFLA_BOND_MODE, BOND_MODE(bond)))
444 goto nla_put_failure;
445
446 ifindex = bond_option_active_slave_get_ifindex(bond);
447 if (ifindex && nla_put_u32(skb, IFLA_BOND_ACTIVE_SLAVE, ifindex))
448 goto nla_put_failure;
449
450 if (nla_put_u32(skb, IFLA_BOND_MIIMON, bond->params.miimon))
451 goto nla_put_failure;
452
453 if (nla_put_u32(skb, IFLA_BOND_UPDELAY,
454 bond->params.updelay * bond->params.miimon))
455 goto nla_put_failure;
456
457 if (nla_put_u32(skb, IFLA_BOND_DOWNDELAY,
458 bond->params.downdelay * bond->params.miimon))
459 goto nla_put_failure;
460
461 if (nla_put_u8(skb, IFLA_BOND_USE_CARRIER, bond->params.use_carrier))
462 goto nla_put_failure;
463
464 if (nla_put_u32(skb, IFLA_BOND_ARP_INTERVAL, bond->params.arp_interval))
465 goto nla_put_failure;
466
467 targets = nla_nest_start(skb, IFLA_BOND_ARP_IP_TARGET);
468 if (!targets)
469 goto nla_put_failure;
470
471 targets_added = 0;
472 for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) {
473 if (bond->params.arp_targets[i]) {
474 nla_put_be32(skb, i, bond->params.arp_targets[i]);
475 targets_added = 1;
476 }
477 }
478
479 if (targets_added)
480 nla_nest_end(skb, targets);
481 else
482 nla_nest_cancel(skb, targets);
483
484 if (nla_put_u32(skb, IFLA_BOND_ARP_VALIDATE, bond->params.arp_validate))
485 goto nla_put_failure;
486
487 if (nla_put_u32(skb, IFLA_BOND_ARP_ALL_TARGETS,
488 bond->params.arp_all_targets))
489 goto nla_put_failure;
490
491 if (bond->primary_slave &&
492 nla_put_u32(skb, IFLA_BOND_PRIMARY,
493 bond->primary_slave->dev->ifindex))
494 goto nla_put_failure;
495
496 if (nla_put_u8(skb, IFLA_BOND_PRIMARY_RESELECT,
497 bond->params.primary_reselect))
498 goto nla_put_failure;
499
500 if (nla_put_u8(skb, IFLA_BOND_FAIL_OVER_MAC,
501 bond->params.fail_over_mac))
502 goto nla_put_failure;
503
504 if (nla_put_u8(skb, IFLA_BOND_XMIT_HASH_POLICY,
505 bond->params.xmit_policy))
506 goto nla_put_failure;
507
508 if (nla_put_u32(skb, IFLA_BOND_RESEND_IGMP,
509 bond->params.resend_igmp))
510 goto nla_put_failure;
511
512 if (nla_put_u8(skb, IFLA_BOND_NUM_PEER_NOTIF,
513 bond->params.num_peer_notif))
514 goto nla_put_failure;
515
516 if (nla_put_u8(skb, IFLA_BOND_ALL_SLAVES_ACTIVE,
517 bond->params.all_slaves_active))
518 goto nla_put_failure;
519
520 if (nla_put_u32(skb, IFLA_BOND_MIN_LINKS,
521 bond->params.min_links))
522 goto nla_put_failure;
523
524 if (nla_put_u32(skb, IFLA_BOND_LP_INTERVAL,
525 bond->params.lp_interval))
526 goto nla_put_failure;
527
528 packets_per_slave = bond->params.packets_per_slave;
529 if (nla_put_u32(skb, IFLA_BOND_PACKETS_PER_SLAVE,
530 packets_per_slave))
531 goto nla_put_failure;
532
533 if (nla_put_u8(skb, IFLA_BOND_AD_LACP_RATE,
534 bond->params.lacp_fast))
535 goto nla_put_failure;
536
537 if (nla_put_u8(skb, IFLA_BOND_AD_SELECT,
538 bond->params.ad_select))
539 goto nla_put_failure;
540
541 if (BOND_MODE(bond) == BOND_MODE_8023AD) {
542 struct ad_info info;
543
544 if (!bond_3ad_get_active_agg_info(bond, &info)) {
545 struct nlattr *nest;
546
547 nest = nla_nest_start(skb, IFLA_BOND_AD_INFO);
548 if (!nest)
549 goto nla_put_failure;
550
551 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_AGGREGATOR,
552 info.aggregator_id))
553 goto nla_put_failure;
554 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_NUM_PORTS,
555 info.ports))
556 goto nla_put_failure;
557 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_ACTOR_KEY,
558 info.actor_key))
559 goto nla_put_failure;
560 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_PARTNER_KEY,
561 info.partner_key))
562 goto nla_put_failure;
563 if (nla_put(skb, IFLA_BOND_AD_INFO_PARTNER_MAC,
564 sizeof(info.partner_system),
565 &info.partner_system))
566 goto nla_put_failure;
567
568 nla_nest_end(skb, nest);
569 }
570 }
571
572 return 0;
573
574 nla_put_failure:
575 return -EMSGSIZE;
576 }
577
578 struct rtnl_link_ops bond_link_ops __read_mostly = {
579 .kind = "bond",
580 .priv_size = sizeof(struct bonding),
581 .setup = bond_setup,
582 .maxtype = IFLA_BOND_MAX,
583 .slave_maxtype = IFLA_BOND_SLAVE_MAX,
584 .policy = bond_policy,
585 .validate = bond_validate,
586 .newlink = bond_newlink,
587 .changelink = bond_changelink,
588 .slave_changelink = bond_slave_changelink,
589 .get_size = bond_get_size,
590 .fill_info = bond_fill_info,
591 .get_num_tx_queues = bond_get_num_tx_queues,
592 .get_num_rx_queues = bond_get_num_tx_queues, /* Use the same number
593 as for TX queues */
594 .get_slave_size = bond_get_slave_size,
595 .fill_slave_info = bond_fill_slave_info,
596 };
597
598 int __init bond_netlink_init(void)
599 {
600 return rtnl_link_register(&bond_link_ops);
601 }
602
603 void bond_netlink_fini(void)
604 {
605 rtnl_link_unregister(&bond_link_ops);
606 }
607
608 MODULE_ALIAS_RTNL_LINK("bond");
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