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[mirror_ubuntu-eoan-kernel.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
a8b8a889
MS		 121static int bond_validate(struct nlattr *tb[], struct nlattr *data[],
122 struct netlink_ext_ack *extack)
0a2a78c4
JP		 123{
124 if (tb[IFLA_ADDRESS]) {
125 if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN)
126 return -EINVAL;
127 if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS])))
128 return -EADDRNOTAVAIL;
129 }
130 return 0;
131}
132
0f23124a
NA		 133static int bond_slave_changelink(struct net_device *bond_dev,
134 struct net_device *slave_dev,
17dd0ec4
MS		 135 struct nlattr *tb[], struct nlattr *data[],
136 struct netlink_ext_ack *extack)
0f23124a
NA		 137{
138 struct bonding *bond = netdev_priv(bond_dev);
139 struct bond_opt_value newval;
140 int err;
141
142 if (!data)
143 return 0;
144
145 if (data[IFLA_BOND_SLAVE_QUEUE_ID]) {
146 u16 queue_id = nla_get_u16(data[IFLA_BOND_SLAVE_QUEUE_ID]);
147 char queue_id_str[IFNAMSIZ + 7];
148
149 /* queue_id option setting expects slave_name:queue_id */
150 snprintf(queue_id_str, sizeof(queue_id_str), "%s:%u\n",
151 slave_dev->name, queue_id);
152 bond_opt_initstr(&newval, queue_id_str);
153 err = __bond_opt_set(bond, BOND_OPT_QUEUE_ID, &newval);
154 if (err)
155 return err;
156 }
157
158 return 0;
159}
160
ad744b22
MS		 161static int bond_changelink(struct net_device *bond_dev, struct nlattr *tb[],
162 struct nlattr *data[],
163 struct netlink_ext_ack *extack)
90af2311
JP		 164{
165 struct bonding *bond = netdev_priv(bond_dev);
2b3798d5 166 struct bond_opt_value newval;
06151dbc 167 int miimon = 0;
90af2311
JP		 168 int err;
169
eecdaa6e 170 if (!data)
171 return 0;
172
173 if (data[IFLA_BOND_MODE]) {
90af2311
JP		 174 int mode = nla_get_u8(data[IFLA_BOND_MODE]);
175
2b3798d5
NA		 176 bond_opt_initval(&newval, mode);
177 err = __bond_opt_set(bond, BOND_OPT_MODE, &newval);
90af2311
JP		 178 if (err)
179 return err;
180 }
eecdaa6e 181 if (data[IFLA_BOND_ACTIVE_SLAVE]) {
ec76aa49
JP		 182 int ifindex = nla_get_u32(data[IFLA_BOND_ACTIVE_SLAVE]);
183 struct net_device *slave_dev;
d1fbd3ed 184 char *active_slave = "";
ec76aa49 185
d1fbd3ed 186 if (ifindex != 0) {
ec76aa49
JP		 187 slave_dev = __dev_get_by_index(dev_net(bond_dev),
188 ifindex);
189 if (!slave_dev)
190 return -ENODEV;
d1fbd3ed 191 active_slave = slave_dev->name;
ec76aa49 192 }
d1fbd3ed
NA		 193 bond_opt_initstr(&newval, active_slave);
194 err = __bond_opt_set(bond, BOND_OPT_ACTIVE_SLAVE, &newval);
ec76aa49
JP		 195 if (err)
196 return err;
197 }
eecdaa6e 198 if (data[IFLA_BOND_MIIMON]) {
06151dbc 199 miimon = nla_get_u32(data[IFLA_BOND_MIIMON]);
eecdaa6e 200
b98d9c66
NA		 201 bond_opt_initval(&newval, miimon);
202 err = __bond_opt_set(bond, BOND_OPT_MIIMON, &newval);
eecdaa6e 203 if (err)
204 return err;
205 }
25852e29 206 if (data[IFLA_BOND_UPDELAY]) {
207 int updelay = nla_get_u32(data[IFLA_BOND_UPDELAY]);
208
e4994612
NA		 209 bond_opt_initval(&newval, updelay);
210 err = __bond_opt_set(bond, BOND_OPT_UPDELAY, &newval);
25852e29 211 if (err)
212 return err;
213 }
c7461f9b 214 if (data[IFLA_BOND_DOWNDELAY]) {
215 int downdelay = nla_get_u32(data[IFLA_BOND_DOWNDELAY]);
216
25a9b54a
NA		 217 bond_opt_initval(&newval, downdelay);
218 err = __bond_opt_set(bond, BOND_OPT_DOWNDELAY, &newval);
c7461f9b 219 if (err)
220 return err;
221 }
9f53e14e 222 if (data[IFLA_BOND_USE_CARRIER]) {
223 int use_carrier = nla_get_u8(data[IFLA_BOND_USE_CARRIER]);
224
0fff0608
NA		 225 bond_opt_initval(&newval, use_carrier);
226 err = __bond_opt_set(bond, BOND_OPT_USE_CARRIER, &newval);
9f53e14e 227 if (err)
228 return err;
229 }
06151dbc 230 if (data[IFLA_BOND_ARP_INTERVAL]) {
231 int arp_interval = nla_get_u32(data[IFLA_BOND_ARP_INTERVAL]);
232
233 if (arp_interval && miimon) {
a5f24542 234 netdev_err(bond->dev, "ARP monitoring cannot be used with MII monitoring\n");
06151dbc 235 return -EINVAL;
236 }
237
7bdb04ed
NA		 238 bond_opt_initval(&newval, arp_interval);
239 err = __bond_opt_set(bond, BOND_OPT_ARP_INTERVAL, &newval);
06151dbc 240 if (err)
241 return err;
242 }
7f28fa10 243 if (data[IFLA_BOND_ARP_IP_TARGET]) {
7f28fa10 244 struct nlattr *attr;
245 int i = 0, rem;
246
4fb0ef58 247 bond_option_arp_ip_targets_clear(bond);
7f28fa10 248 nla_for_each_nested(attr, data[IFLA_BOND_ARP_IP_TARGET], rem) {
f6c6fda4
TG		 249 __be32 target;
250
251 if (nla_len(attr) < sizeof(target))
252 return -EINVAL;
253
254 target = nla_get_be32(attr);
7f28fa10 255
a19a7ec8 256 bond_opt_initval(&newval, (__force u64)target);
4fb0ef58
NA		 257 err = __bond_opt_set(bond, BOND_OPT_ARP_TARGETS,
258 &newval);
259 if (err)
260 break;
261 i++;
262 }
263 if (i == 0 && bond->params.arp_interval)
a5f24542 264 netdev_warn(bond->dev, "Removing last arp target with arp_interval on\n");
7f28fa10 265 if (err)
266 return err;
267 }
29c49482 268 if (data[IFLA_BOND_ARP_VALIDATE]) {
269 int arp_validate = nla_get_u32(data[IFLA_BOND_ARP_VALIDATE]);
270
271 if (arp_validate && miimon) {
a5f24542 272 netdev_err(bond->dev, "ARP validating cannot be used with MII monitoring\n");
29c49482 273 return -EINVAL;
274 }
275
16228881
NA		 276 bond_opt_initval(&newval, arp_validate);
277 err = __bond_opt_set(bond, BOND_OPT_ARP_VALIDATE, &newval);
29c49482 278 if (err)
279 return err;
280 }
d5c84254 281 if (data[IFLA_BOND_ARP_ALL_TARGETS]) {
282 int arp_all_targets =
283 nla_get_u32(data[IFLA_BOND_ARP_ALL_TARGETS]);
284
edf36b24
NA		 285 bond_opt_initval(&newval, arp_all_targets);
286 err = __bond_opt_set(bond, BOND_OPT_ARP_ALL_TARGETS, &newval);
d5c84254 287 if (err)
288 return err;
289 }
0a98a0d1 290 if (data[IFLA_BOND_PRIMARY]) {
291 int ifindex = nla_get_u32(data[IFLA_BOND_PRIMARY]);
292 struct net_device *dev;
293 char *primary = "";
294
295 dev = __dev_get_by_index(dev_net(bond_dev), ifindex);
296 if (dev)
297 primary = dev->name;
298
180222f0
NA		 299 bond_opt_initstr(&newval, primary);
300 err = __bond_opt_set(bond, BOND_OPT_PRIMARY, &newval);
0a98a0d1 301 if (err)
302 return err;
303 }
8a41ae44 304 if (data[IFLA_BOND_PRIMARY_RESELECT]) {
305 int primary_reselect =
306 nla_get_u8(data[IFLA_BOND_PRIMARY_RESELECT]);
307
388d3a6d
NA		 308 bond_opt_initval(&newval, primary_reselect);
309 err = __bond_opt_set(bond, BOND_OPT_PRIMARY_RESELECT, &newval);
8a41ae44 310 if (err)
311 return err;
312 }
89901972 313 if (data[IFLA_BOND_FAIL_OVER_MAC]) {
314 int fail_over_mac =
315 nla_get_u8(data[IFLA_BOND_FAIL_OVER_MAC]);
316
1df6b6aa
NA		 317 bond_opt_initval(&newval, fail_over_mac);
318 err = __bond_opt_set(bond, BOND_OPT_FAIL_OVER_MAC, &newval);
89901972 319 if (err)
320 return err;
321 }
f70161c6 322 if (data[IFLA_BOND_XMIT_HASH_POLICY]) {
323 int xmit_hash_policy =
324 nla_get_u8(data[IFLA_BOND_XMIT_HASH_POLICY]);
325
a4b32ce7
NA		 326 bond_opt_initval(&newval, xmit_hash_policy);
327 err = __bond_opt_set(bond, BOND_OPT_XMIT_HASH, &newval);
f70161c6 328 if (err)
329 return err;
330 }
d8838de7 331 if (data[IFLA_BOND_RESEND_IGMP]) {
332 int resend_igmp =
333 nla_get_u32(data[IFLA_BOND_RESEND_IGMP]);
334
105c8fb6
NA		 335 bond_opt_initval(&newval, resend_igmp);
336 err = __bond_opt_set(bond, BOND_OPT_RESEND_IGMP, &newval);
d8838de7 337 if (err)
338 return err;
339 }
2c9839c1 340 if (data[IFLA_BOND_NUM_PEER_NOTIF]) {
341 int num_peer_notif =
342 nla_get_u8(data[IFLA_BOND_NUM_PEER_NOTIF]);
343
ef56becb
NA		 344 bond_opt_initval(&newval, num_peer_notif);
345 err = __bond_opt_set(bond, BOND_OPT_NUM_PEER_NOTIF, &newval);
2c9839c1 346 if (err)
347 return err;
348 }
1cc0b1e3 349 if (data[IFLA_BOND_ALL_SLAVES_ACTIVE]) {
350 int all_slaves_active =
351 nla_get_u8(data[IFLA_BOND_ALL_SLAVES_ACTIVE]);
352
3df01162
NA		 353 bond_opt_initval(&newval, all_slaves_active);
354 err = __bond_opt_set(bond, BOND_OPT_ALL_SLAVES_ACTIVE, &newval);
1cc0b1e3 355 if (err)
356 return err;
357 }
7d101008 358 if (data[IFLA_BOND_MIN_LINKS]) {
359 int min_links =
360 nla_get_u32(data[IFLA_BOND_MIN_LINKS]);
361
633ddc9e
NA		 362 bond_opt_initval(&newval, min_links);
363 err = __bond_opt_set(bond, BOND_OPT_MINLINKS, &newval);
7d101008 364 if (err)
365 return err;
366 }
8d836d09 367 if (data[IFLA_BOND_LP_INTERVAL]) {
368 int lp_interval =
369 nla_get_u32(data[IFLA_BOND_LP_INTERVAL]);
370
4325b374
NA		 371 bond_opt_initval(&newval, lp_interval);
372 err = __bond_opt_set(bond, BOND_OPT_LP_INTERVAL, &newval);
8d836d09 373 if (err)
374 return err;
375 }
c13ab3ff 376 if (data[IFLA_BOND_PACKETS_PER_SLAVE]) {
377 int packets_per_slave =
378 nla_get_u32(data[IFLA_BOND_PACKETS_PER_SLAVE]);
379
aa59d851
NA		 380 bond_opt_initval(&newval, packets_per_slave);
381 err = __bond_opt_set(bond, BOND_OPT_PACKETS_PER_SLAVE, &newval);
c13ab3ff 382 if (err)
383 return err;
384 }
998e40bb 385 if (data[IFLA_BOND_AD_LACP_RATE]) {
386 int lacp_rate =
387 nla_get_u8(data[IFLA_BOND_AD_LACP_RATE]);
388
d3131de7
NA		 389 bond_opt_initval(&newval, lacp_rate);
390 err = __bond_opt_set(bond, BOND_OPT_LACP_RATE, &newval);
998e40bb 391 if (err)
392 return err;
393 }
ec029fac 394 if (data[IFLA_BOND_AD_SELECT]) {
395 int ad_select =
396 nla_get_u8(data[IFLA_BOND_AD_SELECT]);
397
9e5f5eeb
NA		 398 bond_opt_initval(&newval, ad_select);
399 err = __bond_opt_set(bond, BOND_OPT_AD_SELECT, &newval);
ec029fac 400 if (err)
401 return err;
402 }
171a42c3
AG		 403 if (data[IFLA_BOND_AD_ACTOR_SYS_PRIO]) {
404 int actor_sys_prio =
405 nla_get_u16(data[IFLA_BOND_AD_ACTOR_SYS_PRIO]);
406
407 bond_opt_initval(&newval, actor_sys_prio);
408 err = __bond_opt_set(bond, BOND_OPT_AD_ACTOR_SYS_PRIO, &newval);
409 if (err)
410 return err;
411 }
171a42c3
AG		 412 if (data[IFLA_BOND_AD_USER_PORT_KEY]) {
413 int port_key =
414 nla_get_u16(data[IFLA_BOND_AD_USER_PORT_KEY]);
415
416 bond_opt_initval(&newval, port_key);
417 err = __bond_opt_set(bond, BOND_OPT_AD_USER_PORT_KEY, &newval);
418 if (err)
419 return err;
420 }
171a42c3
AG		 421 if (data[IFLA_BOND_AD_ACTOR_SYSTEM]) {
422 if (nla_len(data[IFLA_BOND_AD_ACTOR_SYSTEM]) != ETH_ALEN)
423 return -EINVAL;
424
425 bond_opt_initval(&newval,
5eb3d22a 426 nla_get_u64(data[IFLA_BOND_AD_ACTOR_SYSTEM]));
171a42c3
AG		 427 err = __bond_opt_set(bond, BOND_OPT_AD_ACTOR_SYSTEM, &newval);
428 if (err)
429 return err;
430 }
0f7bffd9
NA		 431 if (data[IFLA_BOND_TLB_DYNAMIC_LB]) {
432 int dynamic_lb = nla_get_u8(data[IFLA_BOND_TLB_DYNAMIC_LB]);
433
434 bond_opt_initval(&newval, dynamic_lb);
435 err = __bond_opt_set(bond, BOND_OPT_TLB_DYNAMIC_LB, &newval);
436 if (err)
437 return err;
438 }
439
90af2311
JP		 440 return 0;
441}
442
443static int bond_newlink(struct net *src_net, struct net_device *bond_dev,
7a3f4a18
MS		 444 struct nlattr *tb[], struct nlattr *data[],
445 struct netlink_ext_ack *extack)
90af2311
JP		 446{
447 int err;
448
ad744b22 449 err = bond_changelink(bond_dev, tb, data, extack);
90af2311
JP		 450 if (err < 0)
451 return err;
452
005db31d
BG		 453 err = register_netdevice(bond_dev);
454
455 netif_carrier_off(bond_dev);
ea8ffc08
MB		 456 if (!err) {
457 struct bonding *bond = netdev_priv(bond_dev);
458
459 bond_work_init_all(bond);
460 }
005db31d
BG		 461
462 return err;
90af2311
JP		 463}
464
465static size_t bond_get_size(const struct net_device *bond_dev)
466{
e139862e 467 return nla_total_size(sizeof(u8)) + /* IFLA_BOND_MODE */
eecdaa6e 468 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ACTIVE_SLAVE */
469 nla_total_size(sizeof(u32)) + /* IFLA_BOND_MIIMON */
25852e29 470 nla_total_size(sizeof(u32)) + /* IFLA_BOND_UPDELAY */
c7461f9b 471 nla_total_size(sizeof(u32)) + /* IFLA_BOND_DOWNDELAY */
9f53e14e 472 nla_total_size(sizeof(u8)) + /* IFLA_BOND_USE_CARRIER */
06151dbc 473 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_INTERVAL */
7f28fa10 474 /* IFLA_BOND_ARP_IP_TARGET */
288db0aa 475 nla_total_size(sizeof(struct nlattr)) +
7f28fa10 476 nla_total_size(sizeof(u32)) * BOND_MAX_ARP_TARGETS +
29c49482 477 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_VALIDATE */
d5c84254 478 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_ALL_TARGETS */
0a98a0d1 479 nla_total_size(sizeof(u32)) + /* IFLA_BOND_PRIMARY */
8a41ae44 480 nla_total_size(sizeof(u8)) + /* IFLA_BOND_PRIMARY_RESELECT */
89901972 481 nla_total_size(sizeof(u8)) + /* IFLA_BOND_FAIL_OVER_MAC */
f70161c6 482 nla_total_size(sizeof(u8)) + /* IFLA_BOND_XMIT_HASH_POLICY */
d8838de7 483 nla_total_size(sizeof(u32)) + /* IFLA_BOND_RESEND_IGMP */
2c9839c1 484 nla_total_size(sizeof(u8)) + /* IFLA_BOND_NUM_PEER_NOTIF */
1cc0b1e3 485 nla_total_size(sizeof(u8)) + /* IFLA_BOND_ALL_SLAVES_ACTIVE */
7d101008 486 nla_total_size(sizeof(u32)) + /* IFLA_BOND_MIN_LINKS */
8d836d09 487 nla_total_size(sizeof(u32)) + /* IFLA_BOND_LP_INTERVAL */
c13ab3ff 488 nla_total_size(sizeof(u32)) + /* IFLA_BOND_PACKETS_PER_SLAVE */
998e40bb 489 nla_total_size(sizeof(u8)) + /* IFLA_BOND_AD_LACP_RATE */
ec029fac 490 nla_total_size(sizeof(u8)) + /* IFLA_BOND_AD_SELECT */
4ee7ac75 491 nla_total_size(sizeof(struct nlattr)) + /* IFLA_BOND_AD_INFO */
492 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_AGGREGATOR */
493 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_NUM_PORTS */
494 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_ACTOR_KEY */
495 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_PARTNER_KEY*/
496 nla_total_size(ETH_ALEN) + /* IFLA_BOND_AD_INFO_PARTNER_MAC*/
171a42c3
AG		 497 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_ACTOR_SYS_PRIO */
498 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_USER_PORT_KEY */
499 nla_total_size(ETH_ALEN) + /* IFLA_BOND_AD_ACTOR_SYSTEM */
0f7bffd9 500 nla_total_size(sizeof(u8)) + /* IFLA_BOND_TLB_DYNAMIC_LB */
eecdaa6e 501 0;
90af2311
JP		 502}
503
e965f804
ED		 504static int bond_option_active_slave_get_ifindex(struct bonding *bond)
505{
506 const struct net_device *slave;
507 int ifindex;
508
509 rcu_read_lock();
510 slave = bond_option_active_slave_get_rcu(bond);
511 ifindex = slave ? slave->ifindex : 0;
512 rcu_read_unlock();
513 return ifindex;
514}
515
90af2311
JP		 516static int bond_fill_info(struct sk_buff *skb,
517 const struct net_device *bond_dev)
518{
519 struct bonding *bond = netdev_priv(bond_dev);
c13ab3ff 520 unsigned int packets_per_slave;
e965f804
ED		 521 int ifindex, i, targets_added;
522 struct nlattr *targets;
059b47e8 523 struct slave *primary;
90af2311 524
01844098 525 if (nla_put_u8(skb, IFLA_BOND_MODE, BOND_MODE(bond)))
90af2311 526 goto nla_put_failure;
eecdaa6e 527
e965f804
ED		 528 ifindex = bond_option_active_slave_get_ifindex(bond);
529 if (ifindex && nla_put_u32(skb, IFLA_BOND_ACTIVE_SLAVE, ifindex))
eecdaa6e 530 goto nla_put_failure;
531
532 if (nla_put_u32(skb, IFLA_BOND_MIIMON, bond->params.miimon))
533 goto nla_put_failure;
534
25852e29 535 if (nla_put_u32(skb, IFLA_BOND_UPDELAY,
536 bond->params.updelay * bond->params.miimon))
537 goto nla_put_failure;
538
c7461f9b 539 if (nla_put_u32(skb, IFLA_BOND_DOWNDELAY,
540 bond->params.downdelay * bond->params.miimon))
541 goto nla_put_failure;
542
9f53e14e 543 if (nla_put_u8(skb, IFLA_BOND_USE_CARRIER, bond->params.use_carrier))
544 goto nla_put_failure;
545
06151dbc 546 if (nla_put_u32(skb, IFLA_BOND_ARP_INTERVAL, bond->params.arp_interval))
547 goto nla_put_failure;
548
ae0be8de 549 targets = nla_nest_start_noflag(skb, IFLA_BOND_ARP_IP_TARGET);
7f28fa10 550 if (!targets)
551 goto nla_put_failure;
552
553 targets_added = 0;
554 for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) {
555 if (bond->params.arp_targets[i]) {
d62844a8
HL		 556 if (nla_put_be32(skb, i, bond->params.arp_targets[i]))
557 goto nla_put_failure;
7f28fa10 558 targets_added = 1;
559 }
560 }
561
562 if (targets_added)
563 nla_nest_end(skb, targets);
564 else
565 nla_nest_cancel(skb, targets);
566
29c49482 567 if (nla_put_u32(skb, IFLA_BOND_ARP_VALIDATE, bond->params.arp_validate))
568 goto nla_put_failure;
569
d5c84254 570 if (nla_put_u32(skb, IFLA_BOND_ARP_ALL_TARGETS,
571 bond->params.arp_all_targets))
572 goto nla_put_failure;
573
059b47e8
NA		 574 primary = rtnl_dereference(bond->primary_slave);
575 if (primary &&
576 nla_put_u32(skb, IFLA_BOND_PRIMARY, primary->dev->ifindex))
0a98a0d1 577 goto nla_put_failure;
578
8a41ae44 579 if (nla_put_u8(skb, IFLA_BOND_PRIMARY_RESELECT,
580 bond->params.primary_reselect))
581 goto nla_put_failure;
582
89901972 583 if (nla_put_u8(skb, IFLA_BOND_FAIL_OVER_MAC,
584 bond->params.fail_over_mac))
585 goto nla_put_failure;
586
f70161c6 587 if (nla_put_u8(skb, IFLA_BOND_XMIT_HASH_POLICY,
588 bond->params.xmit_policy))
589 goto nla_put_failure;
590
d8838de7 591 if (nla_put_u32(skb, IFLA_BOND_RESEND_IGMP,
592 bond->params.resend_igmp))
593 goto nla_put_failure;
594
2c9839c1 595 if (nla_put_u8(skb, IFLA_BOND_NUM_PEER_NOTIF,
596 bond->params.num_peer_notif))
597 goto nla_put_failure;
598
1cc0b1e3 599 if (nla_put_u8(skb, IFLA_BOND_ALL_SLAVES_ACTIVE,
600 bond->params.all_slaves_active))
601 goto nla_put_failure;
602
7d101008 603 if (nla_put_u32(skb, IFLA_BOND_MIN_LINKS,
604 bond->params.min_links))
605 goto nla_put_failure;
606
8d836d09 607 if (nla_put_u32(skb, IFLA_BOND_LP_INTERVAL,
608 bond->params.lp_interval))
609 goto nla_put_failure;
610
c13ab3ff 611 packets_per_slave = bond->params.packets_per_slave;
c13ab3ff 612 if (nla_put_u32(skb, IFLA_BOND_PACKETS_PER_SLAVE,
613 packets_per_slave))
614 goto nla_put_failure;
615
998e40bb 616 if (nla_put_u8(skb, IFLA_BOND_AD_LACP_RATE,
617 bond->params.lacp_fast))
618 goto nla_put_failure;
619
ec029fac 620 if (nla_put_u8(skb, IFLA_BOND_AD_SELECT,
621 bond->params.ad_select))
622 goto nla_put_failure;
623
0f7bffd9
NA		 624 if (nla_put_u8(skb, IFLA_BOND_TLB_DYNAMIC_LB,
625 bond->params.tlb_dynamic_lb))
626 goto nla_put_failure;
627
01844098 628 if (BOND_MODE(bond) == BOND_MODE_8023AD) {
4ee7ac75 629 struct ad_info info;
630
4cd6b475
MB		 631 if (capable(CAP_NET_ADMIN)) {
632 if (nla_put_u16(skb, IFLA_BOND_AD_ACTOR_SYS_PRIO,
633 bond->params.ad_actor_sys_prio))
634 goto nla_put_failure;
171a42c3 635
4cd6b475
MB		 636 if (nla_put_u16(skb, IFLA_BOND_AD_USER_PORT_KEY,
637 bond->params.ad_user_port_key))
638 goto nla_put_failure;
171a42c3 639
4cd6b475 640 if (nla_put(skb, IFLA_BOND_AD_ACTOR_SYSTEM,
414dd6fb 641 ETH_ALEN, &bond->params.ad_actor_system))
4cd6b475
MB		 642 goto nla_put_failure;
643 }
4ee7ac75 644 if (!bond_3ad_get_active_agg_info(bond, &info)) {
645 struct nlattr *nest;
646
ae0be8de 647 nest = nla_nest_start_noflag(skb, IFLA_BOND_AD_INFO);
4ee7ac75 648 if (!nest)
649 goto nla_put_failure;
650
651 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_AGGREGATOR,
652 info.aggregator_id))
653 goto nla_put_failure;
654 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_NUM_PORTS,
655 info.ports))
656 goto nla_put_failure;
657 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_ACTOR_KEY,
658 info.actor_key))
659 goto nla_put_failure;
660 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_PARTNER_KEY,
661 info.partner_key))
662 goto nla_put_failure;
663 if (nla_put(skb, IFLA_BOND_AD_INFO_PARTNER_MAC,
664 sizeof(info.partner_system),
665 &info.partner_system))
666 goto nla_put_failure;
667
668 nla_nest_end(skb, nest);
669 }
670 }
671
90af2311
JP		 672 return 0;
673
674nla_put_failure:
675 return -EMSGSIZE;
676}
677
a258aeac
NA		 678static size_t bond_get_linkxstats_size(const struct net_device *dev, int attr)
679{
680 switch (attr) {
681 case IFLA_STATS_LINK_XSTATS:
682 case IFLA_STATS_LINK_XSTATS_SLAVE:
683 break;
684 default:
685 return 0;
686 }
687
688 return bond_3ad_stats_size() + nla_total_size(0);
689}
690
691static int bond_fill_linkxstats(struct sk_buff *skb,
692 const struct net_device *dev,
693 int *prividx, int attr)
694{
695 struct nlattr *nla __maybe_unused;
696 struct slave *slave = NULL;
697 struct nlattr *nest, *nest2;
698 struct bonding *bond;
699
700 switch (attr) {
701 case IFLA_STATS_LINK_XSTATS:
702 bond = netdev_priv(dev);
703 break;
704 case IFLA_STATS_LINK_XSTATS_SLAVE:
705 slave = bond_slave_get_rtnl(dev);
706 if (!slave)
707 return 0;
708 bond = slave->bond;
709 break;
710 default:
711 return -EINVAL;
712 }
713
ae0be8de 714 nest = nla_nest_start_noflag(skb, LINK_XSTATS_TYPE_BOND);
a258aeac
NA		 715 if (!nest)
716 return -EMSGSIZE;
717 if (BOND_MODE(bond) == BOND_MODE_8023AD) {
949e7cea
NA		 718 struct bond_3ad_stats *stats;
719
720 if (slave)
721 stats = &SLAVE_AD_INFO(slave)->stats;
722 else
723 stats = &BOND_AD_INFO(bond).stats;
a258aeac 724
ae0be8de 725 nest2 = nla_nest_start_noflag(skb, BOND_XSTATS_3AD);
a258aeac
NA		 726 if (!nest2) {
727 nla_nest_end(skb, nest);
728 return -EMSGSIZE;
729 }
730
949e7cea 731 if (bond_3ad_stats_fill(skb, stats)) {
a258aeac
NA		 732 nla_nest_cancel(skb, nest2);
733 nla_nest_end(skb, nest);
734 return -EMSGSIZE;
735 }
736 nla_nest_end(skb, nest2);
737 }
738 nla_nest_end(skb, nest);
739
740 return 0;
741}
742
0a2a78c4
JP		 743struct rtnl_link_ops bond_link_ops __read_mostly = {
744 .kind = "bond",
745 .priv_size = sizeof(struct bonding),
746 .setup = bond_setup,
90af2311
JP		 747 .maxtype = IFLA_BOND_MAX,
748 .policy = bond_policy,
0a2a78c4 749 .validate = bond_validate,
90af2311
JP		 750 .newlink = bond_newlink,
751 .changelink = bond_changelink,
752 .get_size = bond_get_size,
753 .fill_info = bond_fill_info,
0a2a78c4
JP		 754 .get_num_tx_queues = bond_get_num_tx_queues,
755 .get_num_rx_queues = bond_get_num_tx_queues, /* Use the same number
756 as for TX queues */
a258aeac
NA		 757 .fill_linkxstats = bond_fill_linkxstats,
758 .get_linkxstats_size = bond_get_linkxstats_size,
cea6aeb6
JP		 759 .slave_maxtype = IFLA_BOND_SLAVE_MAX,
760 .slave_policy = bond_slave_policy,
761 .slave_changelink = bond_slave_changelink,
3bad540e
JP		 762 .get_slave_size = bond_get_slave_size,
763 .fill_slave_info = bond_fill_slave_info,
0a2a78c4
JP		 764};
765
766int __init bond_netlink_init(void)
767{
768 return rtnl_link_register(&bond_link_ops);
769}
770
a729e83a 771void bond_netlink_fini(void)
0a2a78c4
JP		 772{
773 rtnl_link_unregister(&bond_link_ops);
774}
775
776MODULE_ALIAS_RTNL_LINK("bond");
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