Loading...
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
13
14#include <linux/module.h>
15#include <linux/errno.h>
16#include <linux/netdevice.h>
17#include <linux/etherdevice.h>
18#include <linux/if_link.h>
19#include <linux/if_ether.h>
20#include <net/netlink.h>
21#include <net/rtnetlink.h>
22#include "bonding.h"
23
24static size_t bond_get_slave_size(const struct net_device *bond_dev,
25 const struct net_device *slave_dev)
26{
27 return nla_total_size(sizeof(u8)) + /* IFLA_BOND_SLAVE_STATE */
28 nla_total_size(sizeof(u8)) + /* IFLA_BOND_SLAVE_MII_STATUS */
29 nla_total_size(sizeof(u32)) + /* IFLA_BOND_SLAVE_LINK_FAILURE_COUNT */
30 nla_total_size(MAX_ADDR_LEN) + /* IFLA_BOND_SLAVE_PERM_HWADDR */
31 nla_total_size(sizeof(u16)) + /* IFLA_BOND_SLAVE_QUEUE_ID */
32 nla_total_size(sizeof(u16)) + /* IFLA_BOND_SLAVE_AD_AGGREGATOR_ID */
33 0;
34}
35
36static int bond_fill_slave_info(struct sk_buff *skb,
37 const struct net_device *bond_dev,
38 const struct net_device *slave_dev)
39{
40 struct slave *slave = bond_slave_get_rtnl(slave_dev);
41
42 if (nla_put_u8(skb, IFLA_BOND_SLAVE_STATE, bond_slave_state(slave)))
43 goto nla_put_failure;
44
45 if (nla_put_u8(skb, IFLA_BOND_SLAVE_MII_STATUS, slave->link))
46 goto nla_put_failure;
47
48 if (nla_put_u32(skb, IFLA_BOND_SLAVE_LINK_FAILURE_COUNT,
49 slave->link_failure_count))
50 goto nla_put_failure;
51
52 if (nla_put(skb, IFLA_BOND_SLAVE_PERM_HWADDR,
53 slave_dev->addr_len, slave->perm_hwaddr))
54 goto nla_put_failure;
55
56 if (nla_put_u16(skb, IFLA_BOND_SLAVE_QUEUE_ID, slave->queue_id))
57 goto nla_put_failure;
58
59 if (slave->bond->params.mode == BOND_MODE_8023AD) {
60 const struct aggregator *agg;
61
62 agg = SLAVE_AD_INFO(slave).port.aggregator;
63 if (agg)
64 if (nla_put_u16(skb, IFLA_BOND_SLAVE_AD_AGGREGATOR_ID,
65 agg->aggregator_identifier))
66 goto nla_put_failure;
67 }
68
69 return 0;
70
71nla_put_failure:
72 return -EMSGSIZE;
73}
74
75static const struct nla_policy bond_policy[IFLA_BOND_MAX + 1] = {
76 [IFLA_BOND_MODE] = { .type = NLA_U8 },
77 [IFLA_BOND_ACTIVE_SLAVE] = { .type = NLA_U32 },
78 [IFLA_BOND_MIIMON] = { .type = NLA_U32 },
79 [IFLA_BOND_UPDELAY] = { .type = NLA_U32 },
80 [IFLA_BOND_DOWNDELAY] = { .type = NLA_U32 },
81 [IFLA_BOND_USE_CARRIER] = { .type = NLA_U8 },
82 [IFLA_BOND_ARP_INTERVAL] = { .type = NLA_U32 },
83 [IFLA_BOND_ARP_IP_TARGET] = { .type = NLA_NESTED },
84 [IFLA_BOND_ARP_VALIDATE] = { .type = NLA_U32 },
85 [IFLA_BOND_ARP_ALL_TARGETS] = { .type = NLA_U32 },
86 [IFLA_BOND_PRIMARY] = { .type = NLA_U32 },
87 [IFLA_BOND_PRIMARY_RESELECT] = { .type = NLA_U8 },
88 [IFLA_BOND_FAIL_OVER_MAC] = { .type = NLA_U8 },
89 [IFLA_BOND_XMIT_HASH_POLICY] = { .type = NLA_U8 },
90 [IFLA_BOND_RESEND_IGMP] = { .type = NLA_U32 },
91 [IFLA_BOND_NUM_PEER_NOTIF] = { .type = NLA_U8 },
92 [IFLA_BOND_ALL_SLAVES_ACTIVE] = { .type = NLA_U8 },
93 [IFLA_BOND_MIN_LINKS] = { .type = NLA_U32 },
94 [IFLA_BOND_LP_INTERVAL] = { .type = NLA_U32 },
95 [IFLA_BOND_PACKETS_PER_SLAVE] = { .type = NLA_U32 },
96 [IFLA_BOND_AD_LACP_RATE] = { .type = NLA_U8 },
97 [IFLA_BOND_AD_SELECT] = { .type = NLA_U8 },
98 [IFLA_BOND_AD_INFO] = { .type = NLA_NESTED },
99};
100
101static int bond_validate(struct nlattr *tb[], struct nlattr *data[])
102{
103 if (tb[IFLA_ADDRESS]) {
104 if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN)
105 return -EINVAL;
106 if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS])))
107 return -EADDRNOTAVAIL;
108 }
109 return 0;
110}
111
112static int bond_changelink(struct net_device *bond_dev,
113 struct nlattr *tb[], struct nlattr *data[])
114{
115 struct bonding *bond = netdev_priv(bond_dev);
116 struct bond_opt_value newval;
117 int miimon = 0;
118 int err;
119
120 if (!data)
121 return 0;
122
123 if (data[IFLA_BOND_MODE]) {
124 int mode = nla_get_u8(data[IFLA_BOND_MODE]);
125
126 bond_opt_initval(&newval, mode);
127 err = __bond_opt_set(bond, BOND_OPT_MODE, &newval);
128 if (err)
129 return err;
130 }
131 if (data[IFLA_BOND_ACTIVE_SLAVE]) {
132 int ifindex = nla_get_u32(data[IFLA_BOND_ACTIVE_SLAVE]);
133 struct net_device *slave_dev;
134 char *active_slave = "";
135
136 if (ifindex != 0) {
137 slave_dev = __dev_get_by_index(dev_net(bond_dev),
138 ifindex);
139 if (!slave_dev)
140 return -ENODEV;
141 active_slave = slave_dev->name;
142 }
143 bond_opt_initstr(&newval, active_slave);
144 err = __bond_opt_set(bond, BOND_OPT_ACTIVE_SLAVE, &newval);
145 if (err)
146 return err;
147 }
148 if (data[IFLA_BOND_MIIMON]) {
149 miimon = nla_get_u32(data[IFLA_BOND_MIIMON]);
150
151 bond_opt_initval(&newval, miimon);
152 err = __bond_opt_set(bond, BOND_OPT_MIIMON, &newval);
153 if (err)
154 return err;
155 }
156 if (data[IFLA_BOND_UPDELAY]) {
157 int updelay = nla_get_u32(data[IFLA_BOND_UPDELAY]);
158
159 bond_opt_initval(&newval, updelay);
160 err = __bond_opt_set(bond, BOND_OPT_UPDELAY, &newval);
161 if (err)
162 return err;
163 }
164 if (data[IFLA_BOND_DOWNDELAY]) {
165 int downdelay = nla_get_u32(data[IFLA_BOND_DOWNDELAY]);
166
167 bond_opt_initval(&newval, downdelay);
168 err = __bond_opt_set(bond, BOND_OPT_DOWNDELAY, &newval);
169 if (err)
170 return err;
171 }
172 if (data[IFLA_BOND_USE_CARRIER]) {
173 int use_carrier = nla_get_u8(data[IFLA_BOND_USE_CARRIER]);
174
175 bond_opt_initval(&newval, use_carrier);
176 err = __bond_opt_set(bond, BOND_OPT_USE_CARRIER, &newval);
177 if (err)
178 return err;
179 }
180 if (data[IFLA_BOND_ARP_INTERVAL]) {
181 int arp_interval = nla_get_u32(data[IFLA_BOND_ARP_INTERVAL]);
182
183 if (arp_interval && miimon) {
184 pr_err("%s: ARP monitoring cannot be used with MII monitoring\n",
185 bond->dev->name);
186 return -EINVAL;
187 }
188
189 bond_opt_initval(&newval, arp_interval);
190 err = __bond_opt_set(bond, BOND_OPT_ARP_INTERVAL, &newval);
191 if (err)
192 return err;
193 }
194 if (data[IFLA_BOND_ARP_IP_TARGET]) {
195 struct nlattr *attr;
196 int i = 0, rem;
197
198 bond_option_arp_ip_targets_clear(bond);
199 nla_for_each_nested(attr, data[IFLA_BOND_ARP_IP_TARGET], rem) {
200 __be32 target = nla_get_be32(attr);
201
202 bond_opt_initval(&newval, (__force u64)target);
203 err = __bond_opt_set(bond, BOND_OPT_ARP_TARGETS,
204 &newval);
205 if (err)
206 break;
207 i++;
208 }
209 if (i == 0 && bond->params.arp_interval)
210 pr_warn("%s: Removing last arp target with arp_interval on\n",
211 bond->dev->name);
212 if (err)
213 return err;
214 }
215 if (data[IFLA_BOND_ARP_VALIDATE]) {
216 int arp_validate = nla_get_u32(data[IFLA_BOND_ARP_VALIDATE]);
217
218 if (arp_validate && miimon) {
219 pr_err("%s: ARP validating cannot be used with MII monitoring\n",
220 bond->dev->name);
221 return -EINVAL;
222 }
223
224 bond_opt_initval(&newval, arp_validate);
225 err = __bond_opt_set(bond, BOND_OPT_ARP_VALIDATE, &newval);
226 if (err)
227 return err;
228 }
229 if (data[IFLA_BOND_ARP_ALL_TARGETS]) {
230 int arp_all_targets =
231 nla_get_u32(data[IFLA_BOND_ARP_ALL_TARGETS]);
232
233 bond_opt_initval(&newval, arp_all_targets);
234 err = __bond_opt_set(bond, BOND_OPT_ARP_ALL_TARGETS, &newval);
235 if (err)
236 return err;
237 }
238 if (data[IFLA_BOND_PRIMARY]) {
239 int ifindex = nla_get_u32(data[IFLA_BOND_PRIMARY]);
240 struct net_device *dev;
241 char *primary = "";
242
243 dev = __dev_get_by_index(dev_net(bond_dev), ifindex);
244 if (dev)
245 primary = dev->name;
246
247 bond_opt_initstr(&newval, primary);
248 err = __bond_opt_set(bond, BOND_OPT_PRIMARY, &newval);
249 if (err)
250 return err;
251 }
252 if (data[IFLA_BOND_PRIMARY_RESELECT]) {
253 int primary_reselect =
254 nla_get_u8(data[IFLA_BOND_PRIMARY_RESELECT]);
255
256 bond_opt_initval(&newval, primary_reselect);
257 err = __bond_opt_set(bond, BOND_OPT_PRIMARY_RESELECT, &newval);
258 if (err)
259 return err;
260 }
261 if (data[IFLA_BOND_FAIL_OVER_MAC]) {
262 int fail_over_mac =
263 nla_get_u8(data[IFLA_BOND_FAIL_OVER_MAC]);
264
265 bond_opt_initval(&newval, fail_over_mac);
266 err = __bond_opt_set(bond, BOND_OPT_FAIL_OVER_MAC, &newval);
267 if (err)
268 return err;
269 }
270 if (data[IFLA_BOND_XMIT_HASH_POLICY]) {
271 int xmit_hash_policy =
272 nla_get_u8(data[IFLA_BOND_XMIT_HASH_POLICY]);
273
274 bond_opt_initval(&newval, xmit_hash_policy);
275 err = __bond_opt_set(bond, BOND_OPT_XMIT_HASH, &newval);
276 if (err)
277 return err;
278 }
279 if (data[IFLA_BOND_RESEND_IGMP]) {
280 int resend_igmp =
281 nla_get_u32(data[IFLA_BOND_RESEND_IGMP]);
282
283 bond_opt_initval(&newval, resend_igmp);
284 err = __bond_opt_set(bond, BOND_OPT_RESEND_IGMP, &newval);
285 if (err)
286 return err;
287 }
288 if (data[IFLA_BOND_NUM_PEER_NOTIF]) {
289 int num_peer_notif =
290 nla_get_u8(data[IFLA_BOND_NUM_PEER_NOTIF]);
291
292 bond_opt_initval(&newval, num_peer_notif);
293 err = __bond_opt_set(bond, BOND_OPT_NUM_PEER_NOTIF, &newval);
294 if (err)
295 return err;
296 }
297 if (data[IFLA_BOND_ALL_SLAVES_ACTIVE]) {
298 int all_slaves_active =
299 nla_get_u8(data[IFLA_BOND_ALL_SLAVES_ACTIVE]);
300
301 bond_opt_initval(&newval, all_slaves_active);
302 err = __bond_opt_set(bond, BOND_OPT_ALL_SLAVES_ACTIVE, &newval);
303 if (err)
304 return err;
305 }
306 if (data[IFLA_BOND_MIN_LINKS]) {
307 int min_links =
308 nla_get_u32(data[IFLA_BOND_MIN_LINKS]);
309
310 bond_opt_initval(&newval, min_links);
311 err = __bond_opt_set(bond, BOND_OPT_MINLINKS, &newval);
312 if (err)
313 return err;
314 }
315 if (data[IFLA_BOND_LP_INTERVAL]) {
316 int lp_interval =
317 nla_get_u32(data[IFLA_BOND_LP_INTERVAL]);
318
319 bond_opt_initval(&newval, lp_interval);
320 err = __bond_opt_set(bond, BOND_OPT_LP_INTERVAL, &newval);
321 if (err)
322 return err;
323 }
324 if (data[IFLA_BOND_PACKETS_PER_SLAVE]) {
325 int packets_per_slave =
326 nla_get_u32(data[IFLA_BOND_PACKETS_PER_SLAVE]);
327
328 bond_opt_initval(&newval, packets_per_slave);
329 err = __bond_opt_set(bond, BOND_OPT_PACKETS_PER_SLAVE, &newval);
330 if (err)
331 return err;
332 }
333 if (data[IFLA_BOND_AD_LACP_RATE]) {
334 int lacp_rate =
335 nla_get_u8(data[IFLA_BOND_AD_LACP_RATE]);
336
337 bond_opt_initval(&newval, lacp_rate);
338 err = __bond_opt_set(bond, BOND_OPT_LACP_RATE, &newval);
339 if (err)
340 return err;
341 }
342 if (data[IFLA_BOND_AD_SELECT]) {
343 int ad_select =
344 nla_get_u8(data[IFLA_BOND_AD_SELECT]);
345
346 bond_opt_initval(&newval, ad_select);
347 err = __bond_opt_set(bond, BOND_OPT_AD_SELECT, &newval);
348 if (err)
349 return err;
350 }
351 return 0;
352}
353
354static int bond_newlink(struct net *src_net, struct net_device *bond_dev,
355 struct nlattr *tb[], struct nlattr *data[])
356{
357 int err;
358
359 err = bond_changelink(bond_dev, tb, data);
360 if (err < 0)
361 return err;
362
363 return register_netdevice(bond_dev);
364}
365
366static size_t bond_get_size(const struct net_device *bond_dev)
367{
368 return nla_total_size(sizeof(u8)) + /* IFLA_BOND_MODE */
369 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ACTIVE_SLAVE */
370 nla_total_size(sizeof(u32)) + /* IFLA_BOND_MIIMON */
371 nla_total_size(sizeof(u32)) + /* IFLA_BOND_UPDELAY */
372 nla_total_size(sizeof(u32)) + /* IFLA_BOND_DOWNDELAY */
373 nla_total_size(sizeof(u8)) + /* IFLA_BOND_USE_CARRIER */
374 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_INTERVAL */
375 /* IFLA_BOND_ARP_IP_TARGET */
376 nla_total_size(sizeof(struct nlattr)) +
377 nla_total_size(sizeof(u32)) * BOND_MAX_ARP_TARGETS +
378 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_VALIDATE */
379 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_ALL_TARGETS */
380 nla_total_size(sizeof(u32)) + /* IFLA_BOND_PRIMARY */
381 nla_total_size(sizeof(u8)) + /* IFLA_BOND_PRIMARY_RESELECT */
382 nla_total_size(sizeof(u8)) + /* IFLA_BOND_FAIL_OVER_MAC */
383 nla_total_size(sizeof(u8)) + /* IFLA_BOND_XMIT_HASH_POLICY */
384 nla_total_size(sizeof(u32)) + /* IFLA_BOND_RESEND_IGMP */
385 nla_total_size(sizeof(u8)) + /* IFLA_BOND_NUM_PEER_NOTIF */
386 nla_total_size(sizeof(u8)) + /* IFLA_BOND_ALL_SLAVES_ACTIVE */
387 nla_total_size(sizeof(u32)) + /* IFLA_BOND_MIN_LINKS */
388 nla_total_size(sizeof(u32)) + /* IFLA_BOND_LP_INTERVAL */
389 nla_total_size(sizeof(u32)) + /* IFLA_BOND_PACKETS_PER_SLAVE */
390 nla_total_size(sizeof(u8)) + /* IFLA_BOND_AD_LACP_RATE */
391 nla_total_size(sizeof(u8)) + /* IFLA_BOND_AD_SELECT */
392 nla_total_size(sizeof(struct nlattr)) + /* IFLA_BOND_AD_INFO */
393 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_AGGREGATOR */
394 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_NUM_PORTS */
395 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_ACTOR_KEY */
396 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_PARTNER_KEY*/
397 nla_total_size(ETH_ALEN) + /* IFLA_BOND_AD_INFO_PARTNER_MAC*/
398 0;
399}
400
401static int bond_fill_info(struct sk_buff *skb,
402 const struct net_device *bond_dev)
403{
404 struct bonding *bond = netdev_priv(bond_dev);
405 struct net_device *slave_dev = bond_option_active_slave_get(bond);
406 struct nlattr *targets;
407 unsigned int packets_per_slave;
408 int i, targets_added;
409
410 if (nla_put_u8(skb, IFLA_BOND_MODE, bond->params.mode))
411 goto nla_put_failure;
412
413 if (slave_dev &&
414 nla_put_u32(skb, IFLA_BOND_ACTIVE_SLAVE, slave_dev->ifindex))
415 goto nla_put_failure;
416
417 if (nla_put_u32(skb, IFLA_BOND_MIIMON, bond->params.miimon))
418 goto nla_put_failure;
419
420 if (nla_put_u32(skb, IFLA_BOND_UPDELAY,
421 bond->params.updelay * bond->params.miimon))
422 goto nla_put_failure;
423
424 if (nla_put_u32(skb, IFLA_BOND_DOWNDELAY,
425 bond->params.downdelay * bond->params.miimon))
426 goto nla_put_failure;
427
428 if (nla_put_u8(skb, IFLA_BOND_USE_CARRIER, bond->params.use_carrier))
429 goto nla_put_failure;
430
431 if (nla_put_u32(skb, IFLA_BOND_ARP_INTERVAL, bond->params.arp_interval))
432 goto nla_put_failure;
433
434 targets = nla_nest_start(skb, IFLA_BOND_ARP_IP_TARGET);
435 if (!targets)
436 goto nla_put_failure;
437
438 targets_added = 0;
439 for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) {
440 if (bond->params.arp_targets[i]) {
441 nla_put_be32(skb, i, bond->params.arp_targets[i]);
442 targets_added = 1;
443 }
444 }
445
446 if (targets_added)
447 nla_nest_end(skb, targets);
448 else
449 nla_nest_cancel(skb, targets);
450
451 if (nla_put_u32(skb, IFLA_BOND_ARP_VALIDATE, bond->params.arp_validate))
452 goto nla_put_failure;
453
454 if (nla_put_u32(skb, IFLA_BOND_ARP_ALL_TARGETS,
455 bond->params.arp_all_targets))
456 goto nla_put_failure;
457
458 if (bond->primary_slave &&
459 nla_put_u32(skb, IFLA_BOND_PRIMARY,
460 bond->primary_slave->dev->ifindex))
461 goto nla_put_failure;
462
463 if (nla_put_u8(skb, IFLA_BOND_PRIMARY_RESELECT,
464 bond->params.primary_reselect))
465 goto nla_put_failure;
466
467 if (nla_put_u8(skb, IFLA_BOND_FAIL_OVER_MAC,
468 bond->params.fail_over_mac))
469 goto nla_put_failure;
470
471 if (nla_put_u8(skb, IFLA_BOND_XMIT_HASH_POLICY,
472 bond->params.xmit_policy))
473 goto nla_put_failure;
474
475 if (nla_put_u32(skb, IFLA_BOND_RESEND_IGMP,
476 bond->params.resend_igmp))
477 goto nla_put_failure;
478
479 if (nla_put_u8(skb, IFLA_BOND_NUM_PEER_NOTIF,
480 bond->params.num_peer_notif))
481 goto nla_put_failure;
482
483 if (nla_put_u8(skb, IFLA_BOND_ALL_SLAVES_ACTIVE,
484 bond->params.all_slaves_active))
485 goto nla_put_failure;
486
487 if (nla_put_u32(skb, IFLA_BOND_MIN_LINKS,
488 bond->params.min_links))
489 goto nla_put_failure;
490
491 if (nla_put_u32(skb, IFLA_BOND_LP_INTERVAL,
492 bond->params.lp_interval))
493 goto nla_put_failure;
494
495 packets_per_slave = bond->params.packets_per_slave;
496 if (nla_put_u32(skb, IFLA_BOND_PACKETS_PER_SLAVE,
497 packets_per_slave))
498 goto nla_put_failure;
499
500 if (nla_put_u8(skb, IFLA_BOND_AD_LACP_RATE,
501 bond->params.lacp_fast))
502 goto nla_put_failure;
503
504 if (nla_put_u8(skb, IFLA_BOND_AD_SELECT,
505 bond->params.ad_select))
506 goto nla_put_failure;
507
508 if (bond->params.mode == BOND_MODE_8023AD) {
509 struct ad_info info;
510
511 if (!bond_3ad_get_active_agg_info(bond, &info)) {
512 struct nlattr *nest;
513
514 nest = nla_nest_start(skb, IFLA_BOND_AD_INFO);
515 if (!nest)
516 goto nla_put_failure;
517
518 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_AGGREGATOR,
519 info.aggregator_id))
520 goto nla_put_failure;
521 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_NUM_PORTS,
522 info.ports))
523 goto nla_put_failure;
524 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_ACTOR_KEY,
525 info.actor_key))
526 goto nla_put_failure;
527 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_PARTNER_KEY,
528 info.partner_key))
529 goto nla_put_failure;
530 if (nla_put(skb, IFLA_BOND_AD_INFO_PARTNER_MAC,
531 sizeof(info.partner_system),
532 &info.partner_system))
533 goto nla_put_failure;
534
535 nla_nest_end(skb, nest);
536 }
537 }
538
539 return 0;
540
541nla_put_failure:
542 return -EMSGSIZE;
543}
544
545struct rtnl_link_ops bond_link_ops __read_mostly = {
546 .kind = "bond",
547 .priv_size = sizeof(struct bonding),
548 .setup = bond_setup,
549 .maxtype = IFLA_BOND_MAX,
550 .policy = bond_policy,
551 .validate = bond_validate,
552 .newlink = bond_newlink,
553 .changelink = bond_changelink,
554 .get_size = bond_get_size,
555 .fill_info = bond_fill_info,
556 .get_num_tx_queues = bond_get_num_tx_queues,
557 .get_num_rx_queues = bond_get_num_tx_queues, /* Use the same number
558 as for TX queues */
559 .get_slave_size = bond_get_slave_size,
560 .fill_slave_info = bond_fill_slave_info,
561};
562
563int __init bond_netlink_init(void)
564{
565 return rtnl_link_register(&bond_link_ops);
566}
567
568void bond_netlink_fini(void)
569{
570 rtnl_link_unregister(&bond_link_ops);
571}
572
573MODULE_ALIAS_RTNL_LINK("bond");
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 <net/bonding.h>
21
22static 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 nla_total_size(sizeof(u8)) + /* IFLA_BOND_SLAVE_AD_ACTOR_OPER_PORT_STATE */
32 nla_total_size(sizeof(u16)) + /* IFLA_BOND_SLAVE_AD_PARTNER_OPER_PORT_STATE */
33 0;
34}
35
36static int bond_fill_slave_info(struct sk_buff *skb,
37 const struct net_device *bond_dev,
38 const struct net_device *slave_dev)
39{
40 struct slave *slave = bond_slave_get_rtnl(slave_dev);
41
42 if (nla_put_u8(skb, IFLA_BOND_SLAVE_STATE, bond_slave_state(slave)))
43 goto nla_put_failure;
44
45 if (nla_put_u8(skb, IFLA_BOND_SLAVE_MII_STATUS, slave->link))
46 goto nla_put_failure;
47
48 if (nla_put_u32(skb, IFLA_BOND_SLAVE_LINK_FAILURE_COUNT,
49 slave->link_failure_count))
50 goto nla_put_failure;
51
52 if (nla_put(skb, IFLA_BOND_SLAVE_PERM_HWADDR,
53 slave_dev->addr_len, slave->perm_hwaddr))
54 goto nla_put_failure;
55
56 if (nla_put_u16(skb, IFLA_BOND_SLAVE_QUEUE_ID, slave->queue_id))
57 goto nla_put_failure;
58
59 if (BOND_MODE(slave->bond) == BOND_MODE_8023AD) {
60 const struct aggregator *agg;
61 const struct port *ad_port;
62
63 ad_port = &SLAVE_AD_INFO(slave)->port;
64 agg = SLAVE_AD_INFO(slave)->port.aggregator;
65 if (agg) {
66 if (nla_put_u16(skb, IFLA_BOND_SLAVE_AD_AGGREGATOR_ID,
67 agg->aggregator_identifier))
68 goto nla_put_failure;
69 if (nla_put_u8(skb,
70 IFLA_BOND_SLAVE_AD_ACTOR_OPER_PORT_STATE,
71 ad_port->actor_oper_port_state))
72 goto nla_put_failure;
73 if (nla_put_u16(skb,
74 IFLA_BOND_SLAVE_AD_PARTNER_OPER_PORT_STATE,
75 ad_port->partner_oper.port_state))
76 goto nla_put_failure;
77 }
78 }
79
80 return 0;
81
82nla_put_failure:
83 return -EMSGSIZE;
84}
85
86static const struct nla_policy bond_policy[IFLA_BOND_MAX + 1] = {
87 [IFLA_BOND_MODE] = { .type = NLA_U8 },
88 [IFLA_BOND_ACTIVE_SLAVE] = { .type = NLA_U32 },
89 [IFLA_BOND_MIIMON] = { .type = NLA_U32 },
90 [IFLA_BOND_UPDELAY] = { .type = NLA_U32 },
91 [IFLA_BOND_DOWNDELAY] = { .type = NLA_U32 },
92 [IFLA_BOND_USE_CARRIER] = { .type = NLA_U8 },
93 [IFLA_BOND_ARP_INTERVAL] = { .type = NLA_U32 },
94 [IFLA_BOND_ARP_IP_TARGET] = { .type = NLA_NESTED },
95 [IFLA_BOND_ARP_VALIDATE] = { .type = NLA_U32 },
96 [IFLA_BOND_ARP_ALL_TARGETS] = { .type = NLA_U32 },
97 [IFLA_BOND_PRIMARY] = { .type = NLA_U32 },
98 [IFLA_BOND_PRIMARY_RESELECT] = { .type = NLA_U8 },
99 [IFLA_BOND_FAIL_OVER_MAC] = { .type = NLA_U8 },
100 [IFLA_BOND_XMIT_HASH_POLICY] = { .type = NLA_U8 },
101 [IFLA_BOND_RESEND_IGMP] = { .type = NLA_U32 },
102 [IFLA_BOND_NUM_PEER_NOTIF] = { .type = NLA_U8 },
103 [IFLA_BOND_ALL_SLAVES_ACTIVE] = { .type = NLA_U8 },
104 [IFLA_BOND_MIN_LINKS] = { .type = NLA_U32 },
105 [IFLA_BOND_LP_INTERVAL] = { .type = NLA_U32 },
106 [IFLA_BOND_PACKETS_PER_SLAVE] = { .type = NLA_U32 },
107 [IFLA_BOND_AD_LACP_RATE] = { .type = NLA_U8 },
108 [IFLA_BOND_AD_SELECT] = { .type = NLA_U8 },
109 [IFLA_BOND_AD_INFO] = { .type = NLA_NESTED },
110 [IFLA_BOND_AD_ACTOR_SYS_PRIO] = { .type = NLA_U16 },
111 [IFLA_BOND_AD_USER_PORT_KEY] = { .type = NLA_U16 },
112 [IFLA_BOND_AD_ACTOR_SYSTEM] = { .type = NLA_BINARY,
113 .len = ETH_ALEN },
114 [IFLA_BOND_TLB_DYNAMIC_LB] = { .type = NLA_U8 },
115};
116
117static const struct nla_policy bond_slave_policy[IFLA_BOND_SLAVE_MAX + 1] = {
118 [IFLA_BOND_SLAVE_QUEUE_ID] = { .type = NLA_U16 },
119};
120
121static int bond_validate(struct nlattr *tb[], struct nlattr *data[])
122{
123 if (tb[IFLA_ADDRESS]) {
124 if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN)
125 return -EINVAL;
126 if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS])))
127 return -EADDRNOTAVAIL;
128 }
129 return 0;
130}
131
132static int bond_slave_changelink(struct net_device *bond_dev,
133 struct net_device *slave_dev,
134 struct nlattr *tb[], struct nlattr *data[])
135{
136 struct bonding *bond = netdev_priv(bond_dev);
137 struct bond_opt_value newval;
138 int err;
139
140 if (!data)
141 return 0;
142
143 if (data[IFLA_BOND_SLAVE_QUEUE_ID]) {
144 u16 queue_id = nla_get_u16(data[IFLA_BOND_SLAVE_QUEUE_ID]);
145 char queue_id_str[IFNAMSIZ + 7];
146
147 /* queue_id option setting expects slave_name:queue_id */
148 snprintf(queue_id_str, sizeof(queue_id_str), "%s:%u\n",
149 slave_dev->name, queue_id);
150 bond_opt_initstr(&newval, queue_id_str);
151 err = __bond_opt_set(bond, BOND_OPT_QUEUE_ID, &newval);
152 if (err)
153 return err;
154 }
155
156 return 0;
157}
158
159static int bond_changelink(struct net_device *bond_dev,
160 struct nlattr *tb[], struct nlattr *data[])
161{
162 struct bonding *bond = netdev_priv(bond_dev);
163 struct bond_opt_value newval;
164 int miimon = 0;
165 int err;
166
167 if (!data)
168 return 0;
169
170 if (data[IFLA_BOND_MODE]) {
171 int mode = nla_get_u8(data[IFLA_BOND_MODE]);
172
173 bond_opt_initval(&newval, mode);
174 err = __bond_opt_set(bond, BOND_OPT_MODE, &newval);
175 if (err)
176 return err;
177 }
178 if (data[IFLA_BOND_ACTIVE_SLAVE]) {
179 int ifindex = nla_get_u32(data[IFLA_BOND_ACTIVE_SLAVE]);
180 struct net_device *slave_dev;
181 char *active_slave = "";
182
183 if (ifindex != 0) {
184 slave_dev = __dev_get_by_index(dev_net(bond_dev),
185 ifindex);
186 if (!slave_dev)
187 return -ENODEV;
188 active_slave = slave_dev->name;
189 }
190 bond_opt_initstr(&newval, active_slave);
191 err = __bond_opt_set(bond, BOND_OPT_ACTIVE_SLAVE, &newval);
192 if (err)
193 return err;
194 }
195 if (data[IFLA_BOND_MIIMON]) {
196 miimon = nla_get_u32(data[IFLA_BOND_MIIMON]);
197
198 bond_opt_initval(&newval, miimon);
199 err = __bond_opt_set(bond, BOND_OPT_MIIMON, &newval);
200 if (err)
201 return err;
202 }
203 if (data[IFLA_BOND_UPDELAY]) {
204 int updelay = nla_get_u32(data[IFLA_BOND_UPDELAY]);
205
206 bond_opt_initval(&newval, updelay);
207 err = __bond_opt_set(bond, BOND_OPT_UPDELAY, &newval);
208 if (err)
209 return err;
210 }
211 if (data[IFLA_BOND_DOWNDELAY]) {
212 int downdelay = nla_get_u32(data[IFLA_BOND_DOWNDELAY]);
213
214 bond_opt_initval(&newval, downdelay);
215 err = __bond_opt_set(bond, BOND_OPT_DOWNDELAY, &newval);
216 if (err)
217 return err;
218 }
219 if (data[IFLA_BOND_USE_CARRIER]) {
220 int use_carrier = nla_get_u8(data[IFLA_BOND_USE_CARRIER]);
221
222 bond_opt_initval(&newval, use_carrier);
223 err = __bond_opt_set(bond, BOND_OPT_USE_CARRIER, &newval);
224 if (err)
225 return err;
226 }
227 if (data[IFLA_BOND_ARP_INTERVAL]) {
228 int arp_interval = nla_get_u32(data[IFLA_BOND_ARP_INTERVAL]);
229
230 if (arp_interval && miimon) {
231 netdev_err(bond->dev, "ARP monitoring cannot be used with MII monitoring\n");
232 return -EINVAL;
233 }
234
235 bond_opt_initval(&newval, arp_interval);
236 err = __bond_opt_set(bond, BOND_OPT_ARP_INTERVAL, &newval);
237 if (err)
238 return err;
239 }
240 if (data[IFLA_BOND_ARP_IP_TARGET]) {
241 struct nlattr *attr;
242 int i = 0, rem;
243
244 bond_option_arp_ip_targets_clear(bond);
245 nla_for_each_nested(attr, data[IFLA_BOND_ARP_IP_TARGET], rem) {
246 __be32 target;
247
248 if (nla_len(attr) < sizeof(target))
249 return -EINVAL;
250
251 target = nla_get_be32(attr);
252
253 bond_opt_initval(&newval, (__force u64)target);
254 err = __bond_opt_set(bond, BOND_OPT_ARP_TARGETS,
255 &newval);
256 if (err)
257 break;
258 i++;
259 }
260 if (i == 0 && bond->params.arp_interval)
261 netdev_warn(bond->dev, "Removing last arp target with arp_interval on\n");
262 if (err)
263 return err;
264 }
265 if (data[IFLA_BOND_ARP_VALIDATE]) {
266 int arp_validate = nla_get_u32(data[IFLA_BOND_ARP_VALIDATE]);
267
268 if (arp_validate && miimon) {
269 netdev_err(bond->dev, "ARP validating cannot be used with MII monitoring\n");
270 return -EINVAL;
271 }
272
273 bond_opt_initval(&newval, arp_validate);
274 err = __bond_opt_set(bond, BOND_OPT_ARP_VALIDATE, &newval);
275 if (err)
276 return err;
277 }
278 if (data[IFLA_BOND_ARP_ALL_TARGETS]) {
279 int arp_all_targets =
280 nla_get_u32(data[IFLA_BOND_ARP_ALL_TARGETS]);
281
282 bond_opt_initval(&newval, arp_all_targets);
283 err = __bond_opt_set(bond, BOND_OPT_ARP_ALL_TARGETS, &newval);
284 if (err)
285 return err;
286 }
287 if (data[IFLA_BOND_PRIMARY]) {
288 int ifindex = nla_get_u32(data[IFLA_BOND_PRIMARY]);
289 struct net_device *dev;
290 char *primary = "";
291
292 dev = __dev_get_by_index(dev_net(bond_dev), ifindex);
293 if (dev)
294 primary = dev->name;
295
296 bond_opt_initstr(&newval, primary);
297 err = __bond_opt_set(bond, BOND_OPT_PRIMARY, &newval);
298 if (err)
299 return err;
300 }
301 if (data[IFLA_BOND_PRIMARY_RESELECT]) {
302 int primary_reselect =
303 nla_get_u8(data[IFLA_BOND_PRIMARY_RESELECT]);
304
305 bond_opt_initval(&newval, primary_reselect);
306 err = __bond_opt_set(bond, BOND_OPT_PRIMARY_RESELECT, &newval);
307 if (err)
308 return err;
309 }
310 if (data[IFLA_BOND_FAIL_OVER_MAC]) {
311 int fail_over_mac =
312 nla_get_u8(data[IFLA_BOND_FAIL_OVER_MAC]);
313
314 bond_opt_initval(&newval, fail_over_mac);
315 err = __bond_opt_set(bond, BOND_OPT_FAIL_OVER_MAC, &newval);
316 if (err)
317 return err;
318 }
319 if (data[IFLA_BOND_XMIT_HASH_POLICY]) {
320 int xmit_hash_policy =
321 nla_get_u8(data[IFLA_BOND_XMIT_HASH_POLICY]);
322
323 bond_opt_initval(&newval, xmit_hash_policy);
324 err = __bond_opt_set(bond, BOND_OPT_XMIT_HASH, &newval);
325 if (err)
326 return err;
327 }
328 if (data[IFLA_BOND_RESEND_IGMP]) {
329 int resend_igmp =
330 nla_get_u32(data[IFLA_BOND_RESEND_IGMP]);
331
332 bond_opt_initval(&newval, resend_igmp);
333 err = __bond_opt_set(bond, BOND_OPT_RESEND_IGMP, &newval);
334 if (err)
335 return err;
336 }
337 if (data[IFLA_BOND_NUM_PEER_NOTIF]) {
338 int num_peer_notif =
339 nla_get_u8(data[IFLA_BOND_NUM_PEER_NOTIF]);
340
341 bond_opt_initval(&newval, num_peer_notif);
342 err = __bond_opt_set(bond, BOND_OPT_NUM_PEER_NOTIF, &newval);
343 if (err)
344 return err;
345 }
346 if (data[IFLA_BOND_ALL_SLAVES_ACTIVE]) {
347 int all_slaves_active =
348 nla_get_u8(data[IFLA_BOND_ALL_SLAVES_ACTIVE]);
349
350 bond_opt_initval(&newval, all_slaves_active);
351 err = __bond_opt_set(bond, BOND_OPT_ALL_SLAVES_ACTIVE, &newval);
352 if (err)
353 return err;
354 }
355 if (data[IFLA_BOND_MIN_LINKS]) {
356 int min_links =
357 nla_get_u32(data[IFLA_BOND_MIN_LINKS]);
358
359 bond_opt_initval(&newval, min_links);
360 err = __bond_opt_set(bond, BOND_OPT_MINLINKS, &newval);
361 if (err)
362 return err;
363 }
364 if (data[IFLA_BOND_LP_INTERVAL]) {
365 int lp_interval =
366 nla_get_u32(data[IFLA_BOND_LP_INTERVAL]);
367
368 bond_opt_initval(&newval, lp_interval);
369 err = __bond_opt_set(bond, BOND_OPT_LP_INTERVAL, &newval);
370 if (err)
371 return err;
372 }
373 if (data[IFLA_BOND_PACKETS_PER_SLAVE]) {
374 int packets_per_slave =
375 nla_get_u32(data[IFLA_BOND_PACKETS_PER_SLAVE]);
376
377 bond_opt_initval(&newval, packets_per_slave);
378 err = __bond_opt_set(bond, BOND_OPT_PACKETS_PER_SLAVE, &newval);
379 if (err)
380 return err;
381 }
382 if (data[IFLA_BOND_AD_LACP_RATE]) {
383 int lacp_rate =
384 nla_get_u8(data[IFLA_BOND_AD_LACP_RATE]);
385
386 bond_opt_initval(&newval, lacp_rate);
387 err = __bond_opt_set(bond, BOND_OPT_LACP_RATE, &newval);
388 if (err)
389 return err;
390 }
391 if (data[IFLA_BOND_AD_SELECT]) {
392 int ad_select =
393 nla_get_u8(data[IFLA_BOND_AD_SELECT]);
394
395 bond_opt_initval(&newval, ad_select);
396 err = __bond_opt_set(bond, BOND_OPT_AD_SELECT, &newval);
397 if (err)
398 return err;
399 }
400 if (data[IFLA_BOND_AD_ACTOR_SYS_PRIO]) {
401 int actor_sys_prio =
402 nla_get_u16(data[IFLA_BOND_AD_ACTOR_SYS_PRIO]);
403
404 bond_opt_initval(&newval, actor_sys_prio);
405 err = __bond_opt_set(bond, BOND_OPT_AD_ACTOR_SYS_PRIO, &newval);
406 if (err)
407 return err;
408 }
409 if (data[IFLA_BOND_AD_USER_PORT_KEY]) {
410 int port_key =
411 nla_get_u16(data[IFLA_BOND_AD_USER_PORT_KEY]);
412
413 bond_opt_initval(&newval, port_key);
414 err = __bond_opt_set(bond, BOND_OPT_AD_USER_PORT_KEY, &newval);
415 if (err)
416 return err;
417 }
418 if (data[IFLA_BOND_AD_ACTOR_SYSTEM]) {
419 if (nla_len(data[IFLA_BOND_AD_ACTOR_SYSTEM]) != ETH_ALEN)
420 return -EINVAL;
421
422 bond_opt_initval(&newval,
423 nla_get_be64(data[IFLA_BOND_AD_ACTOR_SYSTEM]));
424 err = __bond_opt_set(bond, BOND_OPT_AD_ACTOR_SYSTEM, &newval);
425 if (err)
426 return err;
427 }
428 if (data[IFLA_BOND_TLB_DYNAMIC_LB]) {
429 int dynamic_lb = nla_get_u8(data[IFLA_BOND_TLB_DYNAMIC_LB]);
430
431 bond_opt_initval(&newval, dynamic_lb);
432 err = __bond_opt_set(bond, BOND_OPT_TLB_DYNAMIC_LB, &newval);
433 if (err)
434 return err;
435 }
436
437 return 0;
438}
439
440static int bond_newlink(struct net *src_net, struct net_device *bond_dev,
441 struct nlattr *tb[], struct nlattr *data[])
442{
443 int err;
444
445 err = bond_changelink(bond_dev, tb, data);
446 if (err < 0)
447 return err;
448
449 return register_netdevice(bond_dev);
450}
451
452static size_t bond_get_size(const struct net_device *bond_dev)
453{
454 return nla_total_size(sizeof(u8)) + /* IFLA_BOND_MODE */
455 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ACTIVE_SLAVE */
456 nla_total_size(sizeof(u32)) + /* IFLA_BOND_MIIMON */
457 nla_total_size(sizeof(u32)) + /* IFLA_BOND_UPDELAY */
458 nla_total_size(sizeof(u32)) + /* IFLA_BOND_DOWNDELAY */
459 nla_total_size(sizeof(u8)) + /* IFLA_BOND_USE_CARRIER */
460 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_INTERVAL */
461 /* IFLA_BOND_ARP_IP_TARGET */
462 nla_total_size(sizeof(struct nlattr)) +
463 nla_total_size(sizeof(u32)) * BOND_MAX_ARP_TARGETS +
464 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_VALIDATE */
465 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_ALL_TARGETS */
466 nla_total_size(sizeof(u32)) + /* IFLA_BOND_PRIMARY */
467 nla_total_size(sizeof(u8)) + /* IFLA_BOND_PRIMARY_RESELECT */
468 nla_total_size(sizeof(u8)) + /* IFLA_BOND_FAIL_OVER_MAC */
469 nla_total_size(sizeof(u8)) + /* IFLA_BOND_XMIT_HASH_POLICY */
470 nla_total_size(sizeof(u32)) + /* IFLA_BOND_RESEND_IGMP */
471 nla_total_size(sizeof(u8)) + /* IFLA_BOND_NUM_PEER_NOTIF */
472 nla_total_size(sizeof(u8)) + /* IFLA_BOND_ALL_SLAVES_ACTIVE */
473 nla_total_size(sizeof(u32)) + /* IFLA_BOND_MIN_LINKS */
474 nla_total_size(sizeof(u32)) + /* IFLA_BOND_LP_INTERVAL */
475 nla_total_size(sizeof(u32)) + /* IFLA_BOND_PACKETS_PER_SLAVE */
476 nla_total_size(sizeof(u8)) + /* IFLA_BOND_AD_LACP_RATE */
477 nla_total_size(sizeof(u8)) + /* IFLA_BOND_AD_SELECT */
478 nla_total_size(sizeof(struct nlattr)) + /* IFLA_BOND_AD_INFO */
479 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_AGGREGATOR */
480 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_NUM_PORTS */
481 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_ACTOR_KEY */
482 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_PARTNER_KEY*/
483 nla_total_size(ETH_ALEN) + /* IFLA_BOND_AD_INFO_PARTNER_MAC*/
484 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_ACTOR_SYS_PRIO */
485 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_USER_PORT_KEY */
486 nla_total_size(ETH_ALEN) + /* IFLA_BOND_AD_ACTOR_SYSTEM */
487 nla_total_size(sizeof(u8)) + /* IFLA_BOND_TLB_DYNAMIC_LB */
488 0;
489}
490
491static int bond_option_active_slave_get_ifindex(struct bonding *bond)
492{
493 const struct net_device *slave;
494 int ifindex;
495
496 rcu_read_lock();
497 slave = bond_option_active_slave_get_rcu(bond);
498 ifindex = slave ? slave->ifindex : 0;
499 rcu_read_unlock();
500 return ifindex;
501}
502
503static int bond_fill_info(struct sk_buff *skb,
504 const struct net_device *bond_dev)
505{
506 struct bonding *bond = netdev_priv(bond_dev);
507 unsigned int packets_per_slave;
508 int ifindex, i, targets_added;
509 struct nlattr *targets;
510 struct slave *primary;
511
512 if (nla_put_u8(skb, IFLA_BOND_MODE, BOND_MODE(bond)))
513 goto nla_put_failure;
514
515 ifindex = bond_option_active_slave_get_ifindex(bond);
516 if (ifindex && nla_put_u32(skb, IFLA_BOND_ACTIVE_SLAVE, ifindex))
517 goto nla_put_failure;
518
519 if (nla_put_u32(skb, IFLA_BOND_MIIMON, bond->params.miimon))
520 goto nla_put_failure;
521
522 if (nla_put_u32(skb, IFLA_BOND_UPDELAY,
523 bond->params.updelay * bond->params.miimon))
524 goto nla_put_failure;
525
526 if (nla_put_u32(skb, IFLA_BOND_DOWNDELAY,
527 bond->params.downdelay * bond->params.miimon))
528 goto nla_put_failure;
529
530 if (nla_put_u8(skb, IFLA_BOND_USE_CARRIER, bond->params.use_carrier))
531 goto nla_put_failure;
532
533 if (nla_put_u32(skb, IFLA_BOND_ARP_INTERVAL, bond->params.arp_interval))
534 goto nla_put_failure;
535
536 targets = nla_nest_start(skb, IFLA_BOND_ARP_IP_TARGET);
537 if (!targets)
538 goto nla_put_failure;
539
540 targets_added = 0;
541 for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) {
542 if (bond->params.arp_targets[i]) {
543 nla_put_be32(skb, i, bond->params.arp_targets[i]);
544 targets_added = 1;
545 }
546 }
547
548 if (targets_added)
549 nla_nest_end(skb, targets);
550 else
551 nla_nest_cancel(skb, targets);
552
553 if (nla_put_u32(skb, IFLA_BOND_ARP_VALIDATE, bond->params.arp_validate))
554 goto nla_put_failure;
555
556 if (nla_put_u32(skb, IFLA_BOND_ARP_ALL_TARGETS,
557 bond->params.arp_all_targets))
558 goto nla_put_failure;
559
560 primary = rtnl_dereference(bond->primary_slave);
561 if (primary &&
562 nla_put_u32(skb, IFLA_BOND_PRIMARY, primary->dev->ifindex))
563 goto nla_put_failure;
564
565 if (nla_put_u8(skb, IFLA_BOND_PRIMARY_RESELECT,
566 bond->params.primary_reselect))
567 goto nla_put_failure;
568
569 if (nla_put_u8(skb, IFLA_BOND_FAIL_OVER_MAC,
570 bond->params.fail_over_mac))
571 goto nla_put_failure;
572
573 if (nla_put_u8(skb, IFLA_BOND_XMIT_HASH_POLICY,
574 bond->params.xmit_policy))
575 goto nla_put_failure;
576
577 if (nla_put_u32(skb, IFLA_BOND_RESEND_IGMP,
578 bond->params.resend_igmp))
579 goto nla_put_failure;
580
581 if (nla_put_u8(skb, IFLA_BOND_NUM_PEER_NOTIF,
582 bond->params.num_peer_notif))
583 goto nla_put_failure;
584
585 if (nla_put_u8(skb, IFLA_BOND_ALL_SLAVES_ACTIVE,
586 bond->params.all_slaves_active))
587 goto nla_put_failure;
588
589 if (nla_put_u32(skb, IFLA_BOND_MIN_LINKS,
590 bond->params.min_links))
591 goto nla_put_failure;
592
593 if (nla_put_u32(skb, IFLA_BOND_LP_INTERVAL,
594 bond->params.lp_interval))
595 goto nla_put_failure;
596
597 packets_per_slave = bond->params.packets_per_slave;
598 if (nla_put_u32(skb, IFLA_BOND_PACKETS_PER_SLAVE,
599 packets_per_slave))
600 goto nla_put_failure;
601
602 if (nla_put_u8(skb, IFLA_BOND_AD_LACP_RATE,
603 bond->params.lacp_fast))
604 goto nla_put_failure;
605
606 if (nla_put_u8(skb, IFLA_BOND_AD_SELECT,
607 bond->params.ad_select))
608 goto nla_put_failure;
609
610 if (nla_put_u8(skb, IFLA_BOND_TLB_DYNAMIC_LB,
611 bond->params.tlb_dynamic_lb))
612 goto nla_put_failure;
613
614 if (BOND_MODE(bond) == BOND_MODE_8023AD) {
615 struct ad_info info;
616
617 if (capable(CAP_NET_ADMIN)) {
618 if (nla_put_u16(skb, IFLA_BOND_AD_ACTOR_SYS_PRIO,
619 bond->params.ad_actor_sys_prio))
620 goto nla_put_failure;
621
622 if (nla_put_u16(skb, IFLA_BOND_AD_USER_PORT_KEY,
623 bond->params.ad_user_port_key))
624 goto nla_put_failure;
625
626 if (nla_put(skb, IFLA_BOND_AD_ACTOR_SYSTEM,
627 sizeof(bond->params.ad_actor_system),
628 &bond->params.ad_actor_system))
629 goto nla_put_failure;
630 }
631 if (!bond_3ad_get_active_agg_info(bond, &info)) {
632 struct nlattr *nest;
633
634 nest = nla_nest_start(skb, IFLA_BOND_AD_INFO);
635 if (!nest)
636 goto nla_put_failure;
637
638 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_AGGREGATOR,
639 info.aggregator_id))
640 goto nla_put_failure;
641 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_NUM_PORTS,
642 info.ports))
643 goto nla_put_failure;
644 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_ACTOR_KEY,
645 info.actor_key))
646 goto nla_put_failure;
647 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_PARTNER_KEY,
648 info.partner_key))
649 goto nla_put_failure;
650 if (nla_put(skb, IFLA_BOND_AD_INFO_PARTNER_MAC,
651 sizeof(info.partner_system),
652 &info.partner_system))
653 goto nla_put_failure;
654
655 nla_nest_end(skb, nest);
656 }
657 }
658
659 return 0;
660
661nla_put_failure:
662 return -EMSGSIZE;
663}
664
665struct rtnl_link_ops bond_link_ops __read_mostly = {
666 .kind = "bond",
667 .priv_size = sizeof(struct bonding),
668 .setup = bond_setup,
669 .maxtype = IFLA_BOND_MAX,
670 .policy = bond_policy,
671 .validate = bond_validate,
672 .newlink = bond_newlink,
673 .changelink = bond_changelink,
674 .get_size = bond_get_size,
675 .fill_info = bond_fill_info,
676 .get_num_tx_queues = bond_get_num_tx_queues,
677 .get_num_rx_queues = bond_get_num_tx_queues, /* Use the same number
678 as for TX queues */
679 .slave_maxtype = IFLA_BOND_SLAVE_MAX,
680 .slave_policy = bond_slave_policy,
681 .slave_changelink = bond_slave_changelink,
682 .get_slave_size = bond_get_slave_size,
683 .fill_slave_info = bond_fill_slave_info,
684};
685
686int __init bond_netlink_init(void)
687{
688 return rtnl_link_register(&bond_link_ops);
689}
690
691void bond_netlink_fini(void)
692{
693 rtnl_link_unregister(&bond_link_ops);
694}
695
696MODULE_ALIAS_RTNL_LINK("bond");