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net: add netlink_ext_ack argument to rtnl_link_ops.newlink
[linux-block.git] / drivers / net / bonding / bond_netlink.c
CommitLineData
0a2a78c4
JP		 1/*
2 * drivers/net/bond/bond_netlink.c - Netlink interface for bonding
3 * Copyright (c) 2013 Jiri Pirko <jiri@resnulli.us>
eecdaa6e 4 * Copyright (c) 2013 Scott Feldman <sfeldma@cumulusnetworks.com>
0a2a78c4
JP		 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
0a2a78c4
JP		 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>
1ef8019b 20#include <net/bonding.h>
0a2a78c4 21
3bad540e
JP		 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 */
254cb6db 31 nla_total_size(sizeof(u8)) + /* IFLA_BOND_SLAVE_AD_ACTOR_OPER_PORT_STATE */
46ea297e 32 nla_total_size(sizeof(u16)) + /* IFLA_BOND_SLAVE_AD_PARTNER_OPER_PORT_STATE */
3bad540e
JP		 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)
1d3ee88a 39{
40 struct slave *slave = bond_slave_get_rtnl(slave_dev);
1d3ee88a 41
df7dbcbb 42 if (nla_put_u8(skb, IFLA_BOND_SLAVE_STATE, bond_slave_state(slave)))
1d3ee88a 43 goto nla_put_failure;
44
df7dbcbb 45 if (nla_put_u8(skb, IFLA_BOND_SLAVE_MII_STATUS, slave->link))
1d3ee88a 46 goto nla_put_failure;
47
df7dbcbb 48 if (nla_put_u32(skb, IFLA_BOND_SLAVE_LINK_FAILURE_COUNT,
1d3ee88a 49 slave->link_failure_count))
50 goto nla_put_failure;
51
df7dbcbb 52 if (nla_put(skb, IFLA_BOND_SLAVE_PERM_HWADDR,
1d3ee88a 53 slave_dev->addr_len, slave->perm_hwaddr))
54 goto nla_put_failure;
55
df7dbcbb 56 if (nla_put_u16(skb, IFLA_BOND_SLAVE_QUEUE_ID, slave->queue_id))
1d3ee88a 57 goto nla_put_failure;
58
01844098 59 if (BOND_MODE(slave->bond) == BOND_MODE_8023AD) {
3bad540e 60 const struct aggregator *agg;
254cb6db 61 const struct port *ad_port;
3bad540e 62
254cb6db 63 ad_port = &SLAVE_AD_INFO(slave)->port;
3fdddd85 64 agg = SLAVE_AD_INFO(slave)->port.aggregator;
254cb6db 65 if (agg) {
df7dbcbb 66 if (nla_put_u16(skb, IFLA_BOND_SLAVE_AD_AGGREGATOR_ID,
1d3ee88a 67 agg->aggregator_identifier))
68 goto nla_put_failure;
254cb6db
NA		 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;
46ea297e
NA		 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;
254cb6db 77 }
1d3ee88a 78 }
79
80 return 0;
81
82nla_put_failure:
83 return -EMSGSIZE;
84}
85
90af2311
JP		 86static const struct nla_policy bond_policy[IFLA_BOND_MAX + 1] = {
87 [IFLA_BOND_MODE] = { .type = NLA_U8 },
ec76aa49 88 [IFLA_BOND_ACTIVE_SLAVE] = { .type = NLA_U32 },
eecdaa6e 89 [IFLA_BOND_MIIMON] = { .type = NLA_U32 },
25852e29 90 [IFLA_BOND_UPDELAY] = { .type = NLA_U32 },
c7461f9b 91 [IFLA_BOND_DOWNDELAY] = { .type = NLA_U32 },
9f53e14e 92 [IFLA_BOND_USE_CARRIER] = { .type = NLA_U8 },
06151dbc 93 [IFLA_BOND_ARP_INTERVAL] = { .type = NLA_U32 },
7f28fa10 94 [IFLA_BOND_ARP_IP_TARGET] = { .type = NLA_NESTED },
29c49482 95 [IFLA_BOND_ARP_VALIDATE] = { .type = NLA_U32 },
d5c84254 96 [IFLA_BOND_ARP_ALL_TARGETS] = { .type = NLA_U32 },
0a98a0d1 97 [IFLA_BOND_PRIMARY] = { .type = NLA_U32 },
8a41ae44 98 [IFLA_BOND_PRIMARY_RESELECT] = { .type = NLA_U8 },
89901972 99 [IFLA_BOND_FAIL_OVER_MAC] = { .type = NLA_U8 },
f70161c6 100 [IFLA_BOND_XMIT_HASH_POLICY] = { .type = NLA_U8 },
d8838de7 101 [IFLA_BOND_RESEND_IGMP] = { .type = NLA_U32 },
2c9839c1 102 [IFLA_BOND_NUM_PEER_NOTIF] = { .type = NLA_U8 },
1cc0b1e3 103 [IFLA_BOND_ALL_SLAVES_ACTIVE] = { .type = NLA_U8 },
7d101008 104 [IFLA_BOND_MIN_LINKS] = { .type = NLA_U32 },
8d836d09 105 [IFLA_BOND_LP_INTERVAL] = { .type = NLA_U32 },
c13ab3ff 106 [IFLA_BOND_PACKETS_PER_SLAVE] = { .type = NLA_U32 },
998e40bb 107 [IFLA_BOND_AD_LACP_RATE] = { .type = NLA_U8 },
ec029fac 108 [IFLA_BOND_AD_SELECT] = { .type = NLA_U8 },
4ee7ac75 109 [IFLA_BOND_AD_INFO] = { .type = NLA_NESTED },
171a42c3
AG		 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 },
0f7bffd9 114 [IFLA_BOND_TLB_DYNAMIC_LB] = { .type = NLA_U8 },
90af2311
JP		 115};
116
cea6aeb6
JP		 117static const struct nla_policy bond_slave_policy[IFLA_BOND_SLAVE_MAX + 1] = {
118 [IFLA_BOND_SLAVE_QUEUE_ID] = { .type = NLA_U16 },
119};
120
0a2a78c4
JP		 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
0f23124a
NA		 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
90af2311
JP		 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);
2b3798d5 163 struct bond_opt_value newval;
06151dbc 164 int miimon = 0;
90af2311
JP		 165 int err;
166
eecdaa6e 167 if (!data)
168 return 0;
169
170 if (data[IFLA_BOND_MODE]) {
90af2311
JP		 171 int mode = nla_get_u8(data[IFLA_BOND_MODE]);
172
2b3798d5
NA		 173 bond_opt_initval(&newval, mode);
174 err = __bond_opt_set(bond, BOND_OPT_MODE, &newval);
90af2311
JP		 175 if (err)
176 return err;
177 }
eecdaa6e 178 if (data[IFLA_BOND_ACTIVE_SLAVE]) {
ec76aa49
JP		 179 int ifindex = nla_get_u32(data[IFLA_BOND_ACTIVE_SLAVE]);
180 struct net_device *slave_dev;
d1fbd3ed 181 char *active_slave = "";
ec76aa49 182
d1fbd3ed 183 if (ifindex != 0) {
ec76aa49
JP		 184 slave_dev = __dev_get_by_index(dev_net(bond_dev),
185 ifindex);
186 if (!slave_dev)
187 return -ENODEV;
d1fbd3ed 188 active_slave = slave_dev->name;
ec76aa49 189 }
d1fbd3ed
NA		 190 bond_opt_initstr(&newval, active_slave);
191 err = __bond_opt_set(bond, BOND_OPT_ACTIVE_SLAVE, &newval);
ec76aa49
JP		 192 if (err)
193 return err;
194 }
eecdaa6e 195 if (data[IFLA_BOND_MIIMON]) {
06151dbc 196 miimon = nla_get_u32(data[IFLA_BOND_MIIMON]);
eecdaa6e 197
b98d9c66
NA		 198 bond_opt_initval(&newval, miimon);
199 err = __bond_opt_set(bond, BOND_OPT_MIIMON, &newval);
eecdaa6e 200 if (err)
201 return err;
202 }
25852e29 203 if (data[IFLA_BOND_UPDELAY]) {
204 int updelay = nla_get_u32(data[IFLA_BOND_UPDELAY]);
205
e4994612
NA		 206 bond_opt_initval(&newval, updelay);
207 err = __bond_opt_set(bond, BOND_OPT_UPDELAY, &newval);
25852e29 208 if (err)
209 return err;
210 }
c7461f9b 211 if (data[IFLA_BOND_DOWNDELAY]) {
212 int downdelay = nla_get_u32(data[IFLA_BOND_DOWNDELAY]);
213
25a9b54a
NA		 214 bond_opt_initval(&newval, downdelay);
215 err = __bond_opt_set(bond, BOND_OPT_DOWNDELAY, &newval);
c7461f9b 216 if (err)
217 return err;
218 }
9f53e14e 219 if (data[IFLA_BOND_USE_CARRIER]) {
220 int use_carrier = nla_get_u8(data[IFLA_BOND_USE_CARRIER]);
221
0fff0608
NA		 222 bond_opt_initval(&newval, use_carrier);
223 err = __bond_opt_set(bond, BOND_OPT_USE_CARRIER, &newval);
9f53e14e 224 if (err)
225 return err;
226 }
06151dbc 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) {
a5f24542 231 netdev_err(bond->dev, "ARP monitoring cannot be used with MII monitoring\n");
06151dbc 232 return -EINVAL;
233 }
234
7bdb04ed
NA		 235 bond_opt_initval(&newval, arp_interval);
236 err = __bond_opt_set(bond, BOND_OPT_ARP_INTERVAL, &newval);
06151dbc 237 if (err)
238 return err;
239 }
7f28fa10 240 if (data[IFLA_BOND_ARP_IP_TARGET]) {
7f28fa10 241 struct nlattr *attr;
242 int i = 0, rem;
243
4fb0ef58 244 bond_option_arp_ip_targets_clear(bond);
7f28fa10 245 nla_for_each_nested(attr, data[IFLA_BOND_ARP_IP_TARGET], rem) {
f6c6fda4
TG		 246 __be32 target;
247
248 if (nla_len(attr) < sizeof(target))
249 return -EINVAL;
250
251 target = nla_get_be32(attr);
7f28fa10 252
a19a7ec8 253 bond_opt_initval(&newval, (__force u64)target);
4fb0ef58
NA		 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)
a5f24542 261 netdev_warn(bond->dev, "Removing last arp target with arp_interval on\n");
7f28fa10 262 if (err)
263 return err;
264 }
29c49482 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) {
a5f24542 269 netdev_err(bond->dev, "ARP validating cannot be used with MII monitoring\n");
29c49482 270 return -EINVAL;
271 }
272
16228881
NA		 273 bond_opt_initval(&newval, arp_validate);
274 err = __bond_opt_set(bond, BOND_OPT_ARP_VALIDATE, &newval);
29c49482 275 if (err)
276 return err;
277 }
d5c84254 278 if (data[IFLA_BOND_ARP_ALL_TARGETS]) {
279 int arp_all_targets =
280 nla_get_u32(data[IFLA_BOND_ARP_ALL_TARGETS]);
281
edf36b24
NA		 282 bond_opt_initval(&newval, arp_all_targets);
283 err = __bond_opt_set(bond, BOND_OPT_ARP_ALL_TARGETS, &newval);
d5c84254 284 if (err)
285 return err;
286 }
0a98a0d1 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
180222f0
NA		 296 bond_opt_initstr(&newval, primary);
297 err = __bond_opt_set(bond, BOND_OPT_PRIMARY, &newval);
0a98a0d1 298 if (err)
299 return err;
300 }
8a41ae44 301 if (data[IFLA_BOND_PRIMARY_RESELECT]) {
302 int primary_reselect =
303 nla_get_u8(data[IFLA_BOND_PRIMARY_RESELECT]);
304
388d3a6d
NA		 305 bond_opt_initval(&newval, primary_reselect);
306 err = __bond_opt_set(bond, BOND_OPT_PRIMARY_RESELECT, &newval);
8a41ae44 307 if (err)
308 return err;
309 }
89901972 310 if (data[IFLA_BOND_FAIL_OVER_MAC]) {
311 int fail_over_mac =
312 nla_get_u8(data[IFLA_BOND_FAIL_OVER_MAC]);
313
1df6b6aa
NA		 314 bond_opt_initval(&newval, fail_over_mac);
315 err = __bond_opt_set(bond, BOND_OPT_FAIL_OVER_MAC, &newval);
89901972 316 if (err)
317 return err;
318 }
f70161c6 319 if (data[IFLA_BOND_XMIT_HASH_POLICY]) {
320 int xmit_hash_policy =
321 nla_get_u8(data[IFLA_BOND_XMIT_HASH_POLICY]);
322
a4b32ce7
NA		 323 bond_opt_initval(&newval, xmit_hash_policy);
324 err = __bond_opt_set(bond, BOND_OPT_XMIT_HASH, &newval);
f70161c6 325 if (err)
326 return err;
327 }
d8838de7 328 if (data[IFLA_BOND_RESEND_IGMP]) {
329 int resend_igmp =
330 nla_get_u32(data[IFLA_BOND_RESEND_IGMP]);
331
105c8fb6
NA		 332 bond_opt_initval(&newval, resend_igmp);
333 err = __bond_opt_set(bond, BOND_OPT_RESEND_IGMP, &newval);
d8838de7 334 if (err)
335 return err;
336 }
2c9839c1 337 if (data[IFLA_BOND_NUM_PEER_NOTIF]) {
338 int num_peer_notif =
339 nla_get_u8(data[IFLA_BOND_NUM_PEER_NOTIF]);
340
ef56becb
NA		 341 bond_opt_initval(&newval, num_peer_notif);
342 err = __bond_opt_set(bond, BOND_OPT_NUM_PEER_NOTIF, &newval);
2c9839c1 343 if (err)
344 return err;
345 }
1cc0b1e3 346 if (data[IFLA_BOND_ALL_SLAVES_ACTIVE]) {
347 int all_slaves_active =
348 nla_get_u8(data[IFLA_BOND_ALL_SLAVES_ACTIVE]);
349
3df01162
NA		 350 bond_opt_initval(&newval, all_slaves_active);
351 err = __bond_opt_set(bond, BOND_OPT_ALL_SLAVES_ACTIVE, &newval);
1cc0b1e3 352 if (err)
353 return err;
354 }
7d101008 355 if (data[IFLA_BOND_MIN_LINKS]) {
356 int min_links =
357 nla_get_u32(data[IFLA_BOND_MIN_LINKS]);
358
633ddc9e
NA		 359 bond_opt_initval(&newval, min_links);
360 err = __bond_opt_set(bond, BOND_OPT_MINLINKS, &newval);
7d101008 361 if (err)
362 return err;
363 }
8d836d09 364 if (data[IFLA_BOND_LP_INTERVAL]) {
365 int lp_interval =
366 nla_get_u32(data[IFLA_BOND_LP_INTERVAL]);
367
4325b374
NA		 368 bond_opt_initval(&newval, lp_interval);
369 err = __bond_opt_set(bond, BOND_OPT_LP_INTERVAL, &newval);
8d836d09 370 if (err)
371 return err;
372 }
c13ab3ff 373 if (data[IFLA_BOND_PACKETS_PER_SLAVE]) {
374 int packets_per_slave =
375 nla_get_u32(data[IFLA_BOND_PACKETS_PER_SLAVE]);
376
aa59d851
NA		 377 bond_opt_initval(&newval, packets_per_slave);
378 err = __bond_opt_set(bond, BOND_OPT_PACKETS_PER_SLAVE, &newval);
c13ab3ff 379 if (err)
380 return err;
381 }
998e40bb 382 if (data[IFLA_BOND_AD_LACP_RATE]) {
383 int lacp_rate =
384 nla_get_u8(data[IFLA_BOND_AD_LACP_RATE]);
385
d3131de7
NA		 386 bond_opt_initval(&newval, lacp_rate);
387 err = __bond_opt_set(bond, BOND_OPT_LACP_RATE, &newval);
998e40bb 388 if (err)
389 return err;
390 }
ec029fac 391 if (data[IFLA_BOND_AD_SELECT]) {
392 int ad_select =
393 nla_get_u8(data[IFLA_BOND_AD_SELECT]);
394
9e5f5eeb
NA		 395 bond_opt_initval(&newval, ad_select);
396 err = __bond_opt_set(bond, BOND_OPT_AD_SELECT, &newval);
ec029fac 397 if (err)
398 return err;
399 }
171a42c3
AG		 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 }
171a42c3
AG		 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 }
171a42c3
AG		 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 }
0f7bffd9
NA		 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
90af2311
JP		 437 return 0;
438}
439
440static int bond_newlink(struct net *src_net, struct net_device *bond_dev,
7a3f4a18
MS		 441 struct nlattr *tb[], struct nlattr *data[],
442 struct netlink_ext_ack *extack)
90af2311
JP		 443{
444 int err;
445
446 err = bond_changelink(bond_dev, tb, data);
447 if (err < 0)
448 return err;
449
005db31d
BG		 450 err = register_netdevice(bond_dev);
451
452 netif_carrier_off(bond_dev);
ea8ffc08
MB		 453 if (!err) {
454 struct bonding *bond = netdev_priv(bond_dev);
455
456 bond_work_init_all(bond);
457 }
005db31d
BG		 458
459 return err;
90af2311
JP		 460}
461
462static size_t bond_get_size(const struct net_device *bond_dev)
463{
e139862e 464 return nla_total_size(sizeof(u8)) + /* IFLA_BOND_MODE */
eecdaa6e 465 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ACTIVE_SLAVE */
466 nla_total_size(sizeof(u32)) + /* IFLA_BOND_MIIMON */
25852e29 467 nla_total_size(sizeof(u32)) + /* IFLA_BOND_UPDELAY */
c7461f9b 468 nla_total_size(sizeof(u32)) + /* IFLA_BOND_DOWNDELAY */
9f53e14e 469 nla_total_size(sizeof(u8)) + /* IFLA_BOND_USE_CARRIER */
06151dbc 470 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_INTERVAL */
7f28fa10 471 /* IFLA_BOND_ARP_IP_TARGET */
288db0aa 472 nla_total_size(sizeof(struct nlattr)) +
7f28fa10 473 nla_total_size(sizeof(u32)) * BOND_MAX_ARP_TARGETS +
29c49482 474 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_VALIDATE */
d5c84254 475 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_ALL_TARGETS */
0a98a0d1 476 nla_total_size(sizeof(u32)) + /* IFLA_BOND_PRIMARY */
8a41ae44 477 nla_total_size(sizeof(u8)) + /* IFLA_BOND_PRIMARY_RESELECT */
89901972 478 nla_total_size(sizeof(u8)) + /* IFLA_BOND_FAIL_OVER_MAC */
f70161c6 479 nla_total_size(sizeof(u8)) + /* IFLA_BOND_XMIT_HASH_POLICY */
d8838de7 480 nla_total_size(sizeof(u32)) + /* IFLA_BOND_RESEND_IGMP */
2c9839c1 481 nla_total_size(sizeof(u8)) + /* IFLA_BOND_NUM_PEER_NOTIF */
1cc0b1e3 482 nla_total_size(sizeof(u8)) + /* IFLA_BOND_ALL_SLAVES_ACTIVE */
7d101008 483 nla_total_size(sizeof(u32)) + /* IFLA_BOND_MIN_LINKS */
8d836d09 484 nla_total_size(sizeof(u32)) + /* IFLA_BOND_LP_INTERVAL */
c13ab3ff 485 nla_total_size(sizeof(u32)) + /* IFLA_BOND_PACKETS_PER_SLAVE */
998e40bb 486 nla_total_size(sizeof(u8)) + /* IFLA_BOND_AD_LACP_RATE */
ec029fac 487 nla_total_size(sizeof(u8)) + /* IFLA_BOND_AD_SELECT */
4ee7ac75 488 nla_total_size(sizeof(struct nlattr)) + /* IFLA_BOND_AD_INFO */
489 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_AGGREGATOR */
490 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_NUM_PORTS */
491 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_ACTOR_KEY */
492 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_PARTNER_KEY*/
493 nla_total_size(ETH_ALEN) + /* IFLA_BOND_AD_INFO_PARTNER_MAC*/
171a42c3
AG		 494 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_ACTOR_SYS_PRIO */
495 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_USER_PORT_KEY */
496 nla_total_size(ETH_ALEN) + /* IFLA_BOND_AD_ACTOR_SYSTEM */
0f7bffd9 497 nla_total_size(sizeof(u8)) + /* IFLA_BOND_TLB_DYNAMIC_LB */
eecdaa6e 498 0;
90af2311
JP		 499}
500
e965f804
ED		 501static int bond_option_active_slave_get_ifindex(struct bonding *bond)
502{
503 const struct net_device *slave;
504 int ifindex;
505
506 rcu_read_lock();
507 slave = bond_option_active_slave_get_rcu(bond);
508 ifindex = slave ? slave->ifindex : 0;
509 rcu_read_unlock();
510 return ifindex;
511}
512
90af2311
JP		 513static int bond_fill_info(struct sk_buff *skb,
514 const struct net_device *bond_dev)
515{
516 struct bonding *bond = netdev_priv(bond_dev);
c13ab3ff 517 unsigned int packets_per_slave;
e965f804
ED		 518 int ifindex, i, targets_added;
519 struct nlattr *targets;
059b47e8 520 struct slave *primary;
90af2311 521
01844098 522 if (nla_put_u8(skb, IFLA_BOND_MODE, BOND_MODE(bond)))
90af2311 523 goto nla_put_failure;
eecdaa6e 524
e965f804
ED		 525 ifindex = bond_option_active_slave_get_ifindex(bond);
526 if (ifindex && nla_put_u32(skb, IFLA_BOND_ACTIVE_SLAVE, ifindex))
eecdaa6e 527 goto nla_put_failure;
528
529 if (nla_put_u32(skb, IFLA_BOND_MIIMON, bond->params.miimon))
530 goto nla_put_failure;
531
25852e29 532 if (nla_put_u32(skb, IFLA_BOND_UPDELAY,
533 bond->params.updelay * bond->params.miimon))
534 goto nla_put_failure;
535
c7461f9b 536 if (nla_put_u32(skb, IFLA_BOND_DOWNDELAY,
537 bond->params.downdelay * bond->params.miimon))
538 goto nla_put_failure;
539
9f53e14e 540 if (nla_put_u8(skb, IFLA_BOND_USE_CARRIER, bond->params.use_carrier))
541 goto nla_put_failure;
542
06151dbc 543 if (nla_put_u32(skb, IFLA_BOND_ARP_INTERVAL, bond->params.arp_interval))
544 goto nla_put_failure;
545
7f28fa10 546 targets = nla_nest_start(skb, IFLA_BOND_ARP_IP_TARGET);
547 if (!targets)
548 goto nla_put_failure;
549
550 targets_added = 0;
551 for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) {
552 if (bond->params.arp_targets[i]) {
d62844a8
HL		 553 if (nla_put_be32(skb, i, bond->params.arp_targets[i]))
554 goto nla_put_failure;
7f28fa10 555 targets_added = 1;
556 }
557 }
558
559 if (targets_added)
560 nla_nest_end(skb, targets);
561 else
562 nla_nest_cancel(skb, targets);
563
29c49482 564 if (nla_put_u32(skb, IFLA_BOND_ARP_VALIDATE, bond->params.arp_validate))
565 goto nla_put_failure;
566
d5c84254 567 if (nla_put_u32(skb, IFLA_BOND_ARP_ALL_TARGETS,
568 bond->params.arp_all_targets))
569 goto nla_put_failure;
570
059b47e8
NA		 571 primary = rtnl_dereference(bond->primary_slave);
572 if (primary &&
573 nla_put_u32(skb, IFLA_BOND_PRIMARY, primary->dev->ifindex))
0a98a0d1 574 goto nla_put_failure;
575
8a41ae44 576 if (nla_put_u8(skb, IFLA_BOND_PRIMARY_RESELECT,
577 bond->params.primary_reselect))
578 goto nla_put_failure;
579
89901972 580 if (nla_put_u8(skb, IFLA_BOND_FAIL_OVER_MAC,
581 bond->params.fail_over_mac))
582 goto nla_put_failure;
583
f70161c6 584 if (nla_put_u8(skb, IFLA_BOND_XMIT_HASH_POLICY,
585 bond->params.xmit_policy))
586 goto nla_put_failure;
587
d8838de7 588 if (nla_put_u32(skb, IFLA_BOND_RESEND_IGMP,
589 bond->params.resend_igmp))
590 goto nla_put_failure;
591
2c9839c1 592 if (nla_put_u8(skb, IFLA_BOND_NUM_PEER_NOTIF,
593 bond->params.num_peer_notif))
594 goto nla_put_failure;
595
1cc0b1e3 596 if (nla_put_u8(skb, IFLA_BOND_ALL_SLAVES_ACTIVE,
597 bond->params.all_slaves_active))
598 goto nla_put_failure;
599
7d101008 600 if (nla_put_u32(skb, IFLA_BOND_MIN_LINKS,
601 bond->params.min_links))
602 goto nla_put_failure;
603
8d836d09 604 if (nla_put_u32(skb, IFLA_BOND_LP_INTERVAL,
605 bond->params.lp_interval))
606 goto nla_put_failure;
607
c13ab3ff 608 packets_per_slave = bond->params.packets_per_slave;
c13ab3ff 609 if (nla_put_u32(skb, IFLA_BOND_PACKETS_PER_SLAVE,
610 packets_per_slave))
611 goto nla_put_failure;
612
998e40bb 613 if (nla_put_u8(skb, IFLA_BOND_AD_LACP_RATE,
614 bond->params.lacp_fast))
615 goto nla_put_failure;
616
ec029fac 617 if (nla_put_u8(skb, IFLA_BOND_AD_SELECT,
618 bond->params.ad_select))
619 goto nla_put_failure;
620
0f7bffd9
NA		 621 if (nla_put_u8(skb, IFLA_BOND_TLB_DYNAMIC_LB,
622 bond->params.tlb_dynamic_lb))
623 goto nla_put_failure;
624
01844098 625 if (BOND_MODE(bond) == BOND_MODE_8023AD) {
4ee7ac75 626 struct ad_info info;
627
4cd6b475
MB		 628 if (capable(CAP_NET_ADMIN)) {
629 if (nla_put_u16(skb, IFLA_BOND_AD_ACTOR_SYS_PRIO,
630 bond->params.ad_actor_sys_prio))
631 goto nla_put_failure;
171a42c3 632
4cd6b475
MB		 633 if (nla_put_u16(skb, IFLA_BOND_AD_USER_PORT_KEY,
634 bond->params.ad_user_port_key))
635 goto nla_put_failure;
171a42c3 636
4cd6b475
MB		 637 if (nla_put(skb, IFLA_BOND_AD_ACTOR_SYSTEM,
638 sizeof(bond->params.ad_actor_system),
639 &bond->params.ad_actor_system))
640 goto nla_put_failure;
641 }
4ee7ac75 642 if (!bond_3ad_get_active_agg_info(bond, &info)) {
643 struct nlattr *nest;
644
645 nest = nla_nest_start(skb, IFLA_BOND_AD_INFO);
646 if (!nest)
647 goto nla_put_failure;
648
649 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_AGGREGATOR,
650 info.aggregator_id))
651 goto nla_put_failure;
652 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_NUM_PORTS,
653 info.ports))
654 goto nla_put_failure;
655 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_ACTOR_KEY,
656 info.actor_key))
657 goto nla_put_failure;
658 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_PARTNER_KEY,
659 info.partner_key))
660 goto nla_put_failure;
661 if (nla_put(skb, IFLA_BOND_AD_INFO_PARTNER_MAC,
662 sizeof(info.partner_system),
663 &info.partner_system))
664 goto nla_put_failure;
665
666 nla_nest_end(skb, nest);
667 }
668 }
669
90af2311
JP		 670 return 0;
671
672nla_put_failure:
673 return -EMSGSIZE;
674}
675
0a2a78c4
JP		 676struct rtnl_link_ops bond_link_ops __read_mostly = {
677 .kind = "bond",
678 .priv_size = sizeof(struct bonding),
679 .setup = bond_setup,
90af2311
JP		 680 .maxtype = IFLA_BOND_MAX,
681 .policy = bond_policy,
0a2a78c4 682 .validate = bond_validate,
90af2311
JP		 683 .newlink = bond_newlink,
684 .changelink = bond_changelink,
685 .get_size = bond_get_size,
686 .fill_info = bond_fill_info,
0a2a78c4
JP		 687 .get_num_tx_queues = bond_get_num_tx_queues,
688 .get_num_rx_queues = bond_get_num_tx_queues, /* Use the same number
689 as for TX queues */
cea6aeb6
JP		 690 .slave_maxtype = IFLA_BOND_SLAVE_MAX,
691 .slave_policy = bond_slave_policy,
692 .slave_changelink = bond_slave_changelink,
3bad540e
JP		 693 .get_slave_size = bond_get_slave_size,
694 .fill_slave_info = bond_fill_slave_info,
0a2a78c4
JP		 695};
696
697int __init bond_netlink_init(void)
698{
699 return rtnl_link_register(&bond_link_ops);
700}
701
a729e83a 702void bond_netlink_fini(void)
0a2a78c4
JP		 703{
704 rtnl_link_unregister(&bond_link_ops);
705}
706
707MODULE_ALIAS_RTNL_LINK("bond");
Linux 6.x block layer and io_uring tree(s)