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 #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
  24 int bond_get_slave(struct net_device *slave_dev, struct sk_buff *skb)
  25 {
  26         struct slave *slave = bond_slave_get_rtnl(slave_dev);
  27         const struct aggregator *agg;
  28
  29         if (nla_put_u8(skb, IFLA_SLAVE_STATE, bond_slave_state(slave)))
  30                 goto nla_put_failure;
  31
  32         if (nla_put_u8(skb, IFLA_SLAVE_MII_STATUS, slave->link))
  33                 goto nla_put_failure;
  34
  35         if (nla_put_u32(skb, IFLA_SLAVE_LINK_FAILURE_COUNT,
  36                         slave->link_failure_count))
  37                 goto nla_put_failure;
  38
  39         if (nla_put(skb, IFLA_SLAVE_PERM_HWADDR,
  40                     slave_dev->addr_len, slave->perm_hwaddr))
  41                 goto nla_put_failure;
  42
  43         if (nla_put_u16(skb, IFLA_SLAVE_QUEUE_ID, slave->queue_id))
  44                 goto nla_put_failure;
  45
  46         if (slave->bond->params.mode == BOND_MODE_8023AD) {
  47                 agg = SLAVE_AD_INFO(slave).port.aggregator;
  48                 if (agg)
  49                         if (nla_put_u16(skb, IFLA_SLAVE_AD_AGGREGATOR_ID,
  50                                         agg->aggregator_identifier))
  51                                 goto nla_put_failure;
  52         }
  53
  54         return 0;
  55
  56 nla_put_failure:
  57         return -EMSGSIZE;
  58 }
  59
  60 static const struct nla_policy bond_policy[IFLA_BOND_MAX + 1] = {
  61         [IFLA_BOND_MODE]                = { .type = NLA_U8 },
  62         [IFLA_BOND_ACTIVE_SLAVE]        = { .type = NLA_U32 },
  63         [IFLA_BOND_MIIMON]              = { .type = NLA_U32 },
  64         [IFLA_BOND_UPDELAY]             = { .type = NLA_U32 },
  65         [IFLA_BOND_DOWNDELAY]           = { .type = NLA_U32 },
  66         [IFLA_BOND_USE_CARRIER]         = { .type = NLA_U8 },
  67         [IFLA_BOND_ARP_INTERVAL]        = { .type = NLA_U32 },
  68         [IFLA_BOND_ARP_IP_TARGET]       = { .type = NLA_NESTED },
  69         [IFLA_BOND_ARP_VALIDATE]        = { .type = NLA_U32 },
  70         [IFLA_BOND_ARP_ALL_TARGETS]     = { .type = NLA_U32 },
  71         [IFLA_BOND_PRIMARY]             = { .type = NLA_U32 },
  72         [IFLA_BOND_PRIMARY_RESELECT]    = { .type = NLA_U8 },
  73         [IFLA_BOND_FAIL_OVER_MAC]       = { .type = NLA_U8 },
  74         [IFLA_BOND_XMIT_HASH_POLICY]    = { .type = NLA_U8 },
  75         [IFLA_BOND_RESEND_IGMP]         = { .type = NLA_U32 },
  76         [IFLA_BOND_NUM_PEER_NOTIF]      = { .type = NLA_U8 },
  77         [IFLA_BOND_ALL_SLAVES_ACTIVE]   = { .type = NLA_U8 },
  78         [IFLA_BOND_MIN_LINKS]           = { .type = NLA_U32 },
  79         [IFLA_BOND_LP_INTERVAL]         = { .type = NLA_U32 },
  80         [IFLA_BOND_PACKETS_PER_SLAVE]   = { .type = NLA_U32 },
  81         [IFLA_BOND_AD_LACP_RATE]        = { .type = NLA_U8 },
  82         [IFLA_BOND_AD_SELECT]           = { .type = NLA_U8 },
  83         [IFLA_BOND_AD_INFO]             = { .type = NLA_NESTED },
  84 };
  85
  86 static int bond_validate(struct nlattr *tb[], struct nlattr *data[])
  87 {
  88         if (tb[IFLA_ADDRESS]) {
  89                 if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN)
  90                         return -EINVAL;
  91                 if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS])))
  92                         return -EADDRNOTAVAIL;
  93         }
  94         return 0;
  95 }
  96
  97 static int bond_changelink(struct net_device *bond_dev,
  98                            struct nlattr *tb[], struct nlattr *data[])
  99 {
 100         struct bonding *bond = netdev_priv(bond_dev);
 101         struct bond_opt_value newval;
 102         int miimon = 0;
 103         int err;
 104
 105         if (!data)
 106                 return 0;
 107
 108         if (data[IFLA_BOND_MODE]) {
 109                 int mode = nla_get_u8(data[IFLA_BOND_MODE]);
 110
 111                 bond_opt_initval(&newval, mode);
 112                 err = __bond_opt_set(bond, BOND_OPT_MODE, &newval);
 113                 if (err)
 114                         return err;
 115         }
 116         if (data[IFLA_BOND_ACTIVE_SLAVE]) {
 117                 int ifindex = nla_get_u32(data[IFLA_BOND_ACTIVE_SLAVE]);
 118                 struct net_device *slave_dev;
 119
 120                 if (ifindex == 0) {
 121                         slave_dev = NULL;
 122                 } else {
 123                         slave_dev = __dev_get_by_index(dev_net(bond_dev),
 124                                                        ifindex);
 125                         if (!slave_dev)
 126                                 return -ENODEV;
 127                 }
 128                 err = bond_option_active_slave_set(bond, slave_dev);
 129                 if (err)
 130                         return err;
 131         }
 132         if (data[IFLA_BOND_MIIMON]) {
 133                 miimon = nla_get_u32(data[IFLA_BOND_MIIMON]);
 134
 135                 err = bond_option_miimon_set(bond, miimon);
 136                 if (err)
 137                         return err;
 138         }
 139         if (data[IFLA_BOND_UPDELAY]) {
 140                 int updelay = nla_get_u32(data[IFLA_BOND_UPDELAY]);
 141
 142                 bond_opt_initval(&newval, updelay);
 143                 err = __bond_opt_set(bond, BOND_OPT_UPDELAY, &newval);
 144                 if (err)
 145                         return err;
 146         }
 147         if (data[IFLA_BOND_DOWNDELAY]) {
 148                 int downdelay = nla_get_u32(data[IFLA_BOND_DOWNDELAY]);
 149
 150                 bond_opt_initval(&newval, downdelay);
 151                 err = __bond_opt_set(bond, BOND_OPT_DOWNDELAY, &newval);
 152                 if (err)
 153                         return err;
 154         }
 155         if (data[IFLA_BOND_USE_CARRIER]) {
 156                 int use_carrier = nla_get_u8(data[IFLA_BOND_USE_CARRIER]);
 157
 158                 err = bond_option_use_carrier_set(bond, use_carrier);
 159                 if (err)
 160                         return err;
 161         }
 162         if (data[IFLA_BOND_ARP_INTERVAL]) {
 163                 int arp_interval = nla_get_u32(data[IFLA_BOND_ARP_INTERVAL]);
 164
 165                 if (arp_interval && miimon) {
 166                         pr_err("%s: ARP monitoring cannot be used with MII monitoring.\n",
 167                                bond->dev->name);
 168                         return -EINVAL;
 169                 }
 170
 171                 bond_opt_initval(&newval, arp_interval);
 172                 err = __bond_opt_set(bond, BOND_OPT_ARP_INTERVAL, &newval);
 173                 if (err)
 174                         return err;
 175         }
 176         if (data[IFLA_BOND_ARP_IP_TARGET]) {
 177                 struct nlattr *attr;
 178                 int i = 0, rem;
 179
 180                 bond_option_arp_ip_targets_clear(bond);
 181                 nla_for_each_nested(attr, data[IFLA_BOND_ARP_IP_TARGET], rem) {
 182                         __be32 target = nla_get_be32(attr);
 183
 184                         bond_opt_initval(&newval, target);
 185                         err = __bond_opt_set(bond, BOND_OPT_ARP_TARGETS,
 186                                              &newval);
 187                         if (err)
 188                                 break;
 189                         i++;
 190                 }
 191                 if (i == 0 && bond->params.arp_interval)
 192                         pr_warn("%s: removing last arp target with arp_interval on\n",
 193                                 bond->dev->name);
 194                 if (err)
 195                         return err;
 196         }
 197         if (data[IFLA_BOND_ARP_VALIDATE]) {
 198                 int arp_validate = nla_get_u32(data[IFLA_BOND_ARP_VALIDATE]);
 199
 200                 if (arp_validate && miimon) {
 201                         pr_err("%s: ARP validating cannot be used with MII monitoring.\n",
 202                                bond->dev->name);
 203                         return -EINVAL;
 204                 }
 205
 206                 bond_opt_initval(&newval, arp_validate);
 207                 err = __bond_opt_set(bond, BOND_OPT_ARP_VALIDATE, &newval);
 208                 if (err)
 209                         return err;
 210         }
 211         if (data[IFLA_BOND_ARP_ALL_TARGETS]) {
 212                 int arp_all_targets =
 213                         nla_get_u32(data[IFLA_BOND_ARP_ALL_TARGETS]);
 214
 215                 bond_opt_initval(&newval, arp_all_targets);
 216                 err = __bond_opt_set(bond, BOND_OPT_ARP_ALL_TARGETS, &newval);
 217                 if (err)
 218                         return err;
 219         }
 220         if (data[IFLA_BOND_PRIMARY]) {
 221                 int ifindex = nla_get_u32(data[IFLA_BOND_PRIMARY]);
 222                 struct net_device *dev;
 223                 char *primary = "";
 224
 225                 dev = __dev_get_by_index(dev_net(bond_dev), ifindex);
 226                 if (dev)
 227                         primary = dev->name;
 228
 229                 err = bond_option_primary_set(bond, primary);
 230                 if (err)
 231                         return err;
 232         }
 233         if (data[IFLA_BOND_PRIMARY_RESELECT]) {
 234                 int primary_reselect =
 235                         nla_get_u8(data[IFLA_BOND_PRIMARY_RESELECT]);
 236
 237                 err = bond_option_primary_reselect_set(bond, primary_reselect);
 238                 if (err)
 239                         return err;
 240         }
 241         if (data[IFLA_BOND_FAIL_OVER_MAC]) {
 242                 int fail_over_mac =
 243                         nla_get_u8(data[IFLA_BOND_FAIL_OVER_MAC]);
 244
 245                 bond_opt_initval(&newval, fail_over_mac);
 246                 err = __bond_opt_set(bond, BOND_OPT_FAIL_OVER_MAC, &newval);
 247                 if (err)
 248                         return err;
 249         }
 250         if (data[IFLA_BOND_XMIT_HASH_POLICY]) {
 251                 int xmit_hash_policy =
 252                         nla_get_u8(data[IFLA_BOND_XMIT_HASH_POLICY]);
 253
 254                 bond_opt_initval(&newval, xmit_hash_policy);
 255                 err = __bond_opt_set(bond, BOND_OPT_XMIT_HASH, &newval);
 256                 if (err)
 257                         return err;
 258         }
 259         if (data[IFLA_BOND_RESEND_IGMP]) {
 260                 int resend_igmp =
 261                         nla_get_u32(data[IFLA_BOND_RESEND_IGMP]);
 262
 263                 err = bond_option_resend_igmp_set(bond, resend_igmp);
 264                 if (err)
 265                         return err;
 266         }
 267         if (data[IFLA_BOND_NUM_PEER_NOTIF]) {
 268                 int num_peer_notif =
 269                         nla_get_u8(data[IFLA_BOND_NUM_PEER_NOTIF]);
 270
 271                 bond_opt_initval(&newval, num_peer_notif);
 272                 err = __bond_opt_set(bond, BOND_OPT_NUM_PEER_NOTIF, &newval);
 273                 if (err)
 274                         return err;
 275         }
 276         if (data[IFLA_BOND_ALL_SLAVES_ACTIVE]) {
 277                 int all_slaves_active =
 278                         nla_get_u8(data[IFLA_BOND_ALL_SLAVES_ACTIVE]);
 279
 280                 err = bond_option_all_slaves_active_set(bond,
 281                                                         all_slaves_active);
 282                 if (err)
 283                         return err;
 284         }
 285         if (data[IFLA_BOND_MIN_LINKS]) {
 286                 int min_links =
 287                         nla_get_u32(data[IFLA_BOND_MIN_LINKS]);
 288
 289                 bond_opt_initval(&newval, min_links);
 290                 err = __bond_opt_set(bond, BOND_OPT_MINLINKS, &newval);
 291                 if (err)
 292                         return err;
 293         }
 294         if (data[IFLA_BOND_LP_INTERVAL]) {
 295                 int lp_interval =
 296                         nla_get_u32(data[IFLA_BOND_LP_INTERVAL]);
 297
 298                 err = bond_option_lp_interval_set(bond, lp_interval);
 299                 if (err)
 300                         return err;
 301         }
 302         if (data[IFLA_BOND_PACKETS_PER_SLAVE]) {
 303                 int packets_per_slave =
 304                         nla_get_u32(data[IFLA_BOND_PACKETS_PER_SLAVE]);
 305
 306                 bond_opt_initval(&newval, packets_per_slave);
 307                 err = __bond_opt_set(bond, BOND_OPT_PACKETS_PER_SLAVE, &newval);
 308                 if (err)
 309                         return err;
 310         }
 311         if (data[IFLA_BOND_AD_LACP_RATE]) {
 312                 int lacp_rate =
 313                         nla_get_u8(data[IFLA_BOND_AD_LACP_RATE]);
 314
 315                 bond_opt_initval(&newval, lacp_rate);
 316                 err = __bond_opt_set(bond, BOND_OPT_LACP_RATE, &newval);
 317                 if (err)
 318                         return err;
 319         }
 320         if (data[IFLA_BOND_AD_SELECT]) {
 321                 int ad_select =
 322                         nla_get_u8(data[IFLA_BOND_AD_SELECT]);
 323
 324                 bond_opt_initval(&newval, ad_select);
 325                 err = __bond_opt_set(bond, BOND_OPT_AD_SELECT, &newval);
 326                 if (err)
 327                         return err;
 328         }
 329         return 0;
 330 }
 331
 332 static int bond_newlink(struct net *src_net, struct net_device *bond_dev,
 333                         struct nlattr *tb[], struct nlattr *data[])
 334 {
 335         int err;
 336
 337         err = bond_changelink(bond_dev, tb, data);
 338         if (err < 0)
 339                 return err;
 340
 341         return register_netdevice(bond_dev);
 342 }
 343
 344 static size_t bond_get_size(const struct net_device *bond_dev)
 345 {
 346         return nla_total_size(sizeof(u8)) +     /* IFLA_BOND_MODE */
 347                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_ACTIVE_SLAVE */
 348                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_MIIMON */
 349                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_UPDELAY */
 350                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_DOWNDELAY */
 351                 nla_total_size(sizeof(u8)) +    /* IFLA_BOND_USE_CARRIER */
 352                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_ARP_INTERVAL */
 353                                                 /* IFLA_BOND_ARP_IP_TARGET */
 354                 nla_total_size(sizeof(struct nlattr)) +
 355                 nla_total_size(sizeof(u32)) * BOND_MAX_ARP_TARGETS +
 356                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_ARP_VALIDATE */
 357                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_ARP_ALL_TARGETS */
 358                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_PRIMARY */
 359                 nla_total_size(sizeof(u8)) +    /* IFLA_BOND_PRIMARY_RESELECT */
 360                 nla_total_size(sizeof(u8)) +    /* IFLA_BOND_FAIL_OVER_MAC */
 361                 nla_total_size(sizeof(u8)) +    /* IFLA_BOND_XMIT_HASH_POLICY */
 362                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_RESEND_IGMP */
 363                 nla_total_size(sizeof(u8)) +    /* IFLA_BOND_NUM_PEER_NOTIF */
 364                 nla_total_size(sizeof(u8)) +   /* IFLA_BOND_ALL_SLAVES_ACTIVE */
 365                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_MIN_LINKS */
 366                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_LP_INTERVAL */
 367                 nla_total_size(sizeof(u32)) +  /* IFLA_BOND_PACKETS_PER_SLAVE */
 368                 nla_total_size(sizeof(u8)) +    /* IFLA_BOND_AD_LACP_RATE */
 369                 nla_total_size(sizeof(u8)) +    /* IFLA_BOND_AD_SELECT */
 370                 nla_total_size(sizeof(struct nlattr)) + /* IFLA_BOND_AD_INFO */
 371                 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_AGGREGATOR */
 372                 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_NUM_PORTS */
 373                 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_ACTOR_KEY */
 374                 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_PARTNER_KEY*/
 375                 nla_total_size(ETH_ALEN) +    /* IFLA_BOND_AD_INFO_PARTNER_MAC*/
 376                 0;
 377 }
 378
 379 static int bond_fill_info(struct sk_buff *skb,
 380                           const struct net_device *bond_dev)
 381 {
 382         struct bonding *bond = netdev_priv(bond_dev);
 383         struct net_device *slave_dev = bond_option_active_slave_get(bond);
 384         struct nlattr *targets;
 385         unsigned int packets_per_slave;
 386         int i, targets_added;
 387
 388         if (nla_put_u8(skb, IFLA_BOND_MODE, bond->params.mode))
 389                 goto nla_put_failure;
 390
 391         if (slave_dev &&
 392             nla_put_u32(skb, IFLA_BOND_ACTIVE_SLAVE, slave_dev->ifindex))
 393                 goto nla_put_failure;
 394
 395         if (nla_put_u32(skb, IFLA_BOND_MIIMON, bond->params.miimon))
 396                 goto nla_put_failure;
 397
 398         if (nla_put_u32(skb, IFLA_BOND_UPDELAY,
 399                         bond->params.updelay * bond->params.miimon))
 400                 goto nla_put_failure;
 401
 402         if (nla_put_u32(skb, IFLA_BOND_DOWNDELAY,
 403                         bond->params.downdelay * bond->params.miimon))
 404                 goto nla_put_failure;
 405
 406         if (nla_put_u8(skb, IFLA_BOND_USE_CARRIER, bond->params.use_carrier))
 407                 goto nla_put_failure;
 408
 409         if (nla_put_u32(skb, IFLA_BOND_ARP_INTERVAL, bond->params.arp_interval))
 410                 goto nla_put_failure;
 411
 412         targets = nla_nest_start(skb, IFLA_BOND_ARP_IP_TARGET);
 413         if (!targets)
 414                 goto nla_put_failure;
 415
 416         targets_added = 0;
 417         for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) {
 418                 if (bond->params.arp_targets[i]) {
 419                         nla_put_be32(skb, i, bond->params.arp_targets[i]);
 420                         targets_added = 1;
 421                 }
 422         }
 423
 424         if (targets_added)
 425                 nla_nest_end(skb, targets);
 426         else
 427                 nla_nest_cancel(skb, targets);
 428
 429         if (nla_put_u32(skb, IFLA_BOND_ARP_VALIDATE, bond->params.arp_validate))
 430                 goto nla_put_failure;
 431
 432         if (nla_put_u32(skb, IFLA_BOND_ARP_ALL_TARGETS,
 433                         bond->params.arp_all_targets))
 434                 goto nla_put_failure;
 435
 436         if (bond->primary_slave &&
 437             nla_put_u32(skb, IFLA_BOND_PRIMARY,
 438                         bond->primary_slave->dev->ifindex))
 439                 goto nla_put_failure;
 440
 441         if (nla_put_u8(skb, IFLA_BOND_PRIMARY_RESELECT,
 442                        bond->params.primary_reselect))
 443                 goto nla_put_failure;
 444
 445         if (nla_put_u8(skb, IFLA_BOND_FAIL_OVER_MAC,
 446                        bond->params.fail_over_mac))
 447                 goto nla_put_failure;
 448
 449         if (nla_put_u8(skb, IFLA_BOND_XMIT_HASH_POLICY,
 450                        bond->params.xmit_policy))
 451                 goto nla_put_failure;
 452
 453         if (nla_put_u32(skb, IFLA_BOND_RESEND_IGMP,
 454                         bond->params.resend_igmp))
 455                 goto nla_put_failure;
 456
 457         if (nla_put_u8(skb, IFLA_BOND_NUM_PEER_NOTIF,
 458                        bond->params.num_peer_notif))
 459                 goto nla_put_failure;
 460
 461         if (nla_put_u8(skb, IFLA_BOND_ALL_SLAVES_ACTIVE,
 462                        bond->params.all_slaves_active))
 463                 goto nla_put_failure;
 464
 465         if (nla_put_u32(skb, IFLA_BOND_MIN_LINKS,
 466                         bond->params.min_links))
 467                 goto nla_put_failure;
 468
 469         if (nla_put_u32(skb, IFLA_BOND_LP_INTERVAL,
 470                         bond->params.lp_interval))
 471                 goto nla_put_failure;
 472
 473         packets_per_slave = bond->params.packets_per_slave;
 474         if (nla_put_u32(skb, IFLA_BOND_PACKETS_PER_SLAVE,
 475                         packets_per_slave))
 476                 goto nla_put_failure;
 477
 478         if (nla_put_u8(skb, IFLA_BOND_AD_LACP_RATE,
 479                        bond->params.lacp_fast))
 480                 goto nla_put_failure;
 481
 482         if (nla_put_u8(skb, IFLA_BOND_AD_SELECT,
 483                        bond->params.ad_select))
 484                 goto nla_put_failure;
 485
 486         if (bond->params.mode == BOND_MODE_8023AD) {
 487                 struct ad_info info;
 488
 489                 if (!bond_3ad_get_active_agg_info(bond, &info)) {
 490                         struct nlattr *nest;
 491
 492                         nest = nla_nest_start(skb, IFLA_BOND_AD_INFO);
 493                         if (!nest)
 494                                 goto nla_put_failure;
 495
 496                         if (nla_put_u16(skb, IFLA_BOND_AD_INFO_AGGREGATOR,
 497                                         info.aggregator_id))
 498                                 goto nla_put_failure;
 499                         if (nla_put_u16(skb, IFLA_BOND_AD_INFO_NUM_PORTS,
 500                                         info.ports))
 501                                 goto nla_put_failure;
 502                         if (nla_put_u16(skb, IFLA_BOND_AD_INFO_ACTOR_KEY,
 503                                         info.actor_key))
 504                                 goto nla_put_failure;
 505                         if (nla_put_u16(skb, IFLA_BOND_AD_INFO_PARTNER_KEY,
 506                                         info.partner_key))
 507                                 goto nla_put_failure;
 508                         if (nla_put(skb, IFLA_BOND_AD_INFO_PARTNER_MAC,
 509                                     sizeof(info.partner_system),
 510                                     &info.partner_system))
 511                                 goto nla_put_failure;
 512
 513                         nla_nest_end(skb, nest);
 514                 }
 515         }
 516
 517         return 0;
 518
 519 nla_put_failure:
 520         return -EMSGSIZE;
 521 }
 522
 523 struct rtnl_link_ops bond_link_ops __read_mostly = {
 524         .kind                   = "bond",
 525         .priv_size              = sizeof(struct bonding),
 526         .setup                  = bond_setup,
 527         .maxtype                = IFLA_BOND_MAX,
 528         .policy                 = bond_policy,
 529         .validate               = bond_validate,
 530         .newlink                = bond_newlink,
 531         .changelink             = bond_changelink,
 532         .get_size               = bond_get_size,
 533         .fill_info              = bond_fill_info,
 534         .get_num_tx_queues      = bond_get_num_tx_queues,
 535         .get_num_rx_queues      = bond_get_num_tx_queues, /* Use the same number
 536                                                              as for TX queues */
 537 };
 538
 539 int __init bond_netlink_init(void)
 540 {
 541         return rtnl_link_register(&bond_link_ops);
 542 }
 543
 544 void bond_netlink_fini(void)
 545 {
 546         rtnl_link_unregister(&bond_link_ops);
 547 }
 548
 549 MODULE_ALIAS_RTNL_LINK("bond");