Pileus Git - ~andy/linux/blob - 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                 err = bond_option_updelay_set(bond, updelay);
 143                 if (err)
 144                         return err;
 145         }
 146         if (data[IFLA_BOND_DOWNDELAY]) {
 147                 int downdelay = nla_get_u32(data[IFLA_BOND_DOWNDELAY]);
 148
 149                 err = bond_option_downdelay_set(bond, downdelay);
 150                 if (err)
 151                         return err;
 152         }
 153         if (data[IFLA_BOND_USE_CARRIER]) {
 154                 int use_carrier = nla_get_u8(data[IFLA_BOND_USE_CARRIER]);
 155
 156                 err = bond_option_use_carrier_set(bond, use_carrier);
 157                 if (err)
 158                         return err;
 159         }
 160         if (data[IFLA_BOND_ARP_INTERVAL]) {
 161                 int arp_interval = nla_get_u32(data[IFLA_BOND_ARP_INTERVAL]);
 162
 163                 if (arp_interval && miimon) {
 164                         pr_err("%s: ARP monitoring cannot be used with MII monitoring.\n",
 165                                bond->dev->name);
 166                         return -EINVAL;
 167                 }
 168
 169                 bond_opt_initval(&newval, arp_interval);
 170                 err = __bond_opt_set(bond, BOND_OPT_ARP_INTERVAL, &newval);
 171                 if (err)
 172                         return err;
 173         }
 174         if (data[IFLA_BOND_ARP_IP_TARGET]) {
 175                 __be32 targets[BOND_MAX_ARP_TARGETS] = { 0, };
 176                 struct nlattr *attr;
 177                 int i = 0, rem;
 178
 179                 nla_for_each_nested(attr, data[IFLA_BOND_ARP_IP_TARGET], rem) {
 180                         __be32 target = nla_get_be32(attr);
 181                         targets[i++] = target;
 182                 }
 183
 184                 err = bond_option_arp_ip_targets_set(bond, targets, i);
 185                 if (err)
 186                         return err;
 187         }
 188         if (data[IFLA_BOND_ARP_VALIDATE]) {
 189                 int arp_validate = nla_get_u32(data[IFLA_BOND_ARP_VALIDATE]);
 190
 191                 if (arp_validate && miimon) {
 192                         pr_err("%s: ARP validating cannot be used with MII monitoring.\n",
 193                                bond->dev->name);
 194                         return -EINVAL;
 195                 }
 196
 197                 bond_opt_initval(&newval, arp_validate);
 198                 err = __bond_opt_set(bond, BOND_OPT_ARP_VALIDATE, &newval);
 199                 if (err)
 200                         return err;
 201         }
 202         if (data[IFLA_BOND_ARP_ALL_TARGETS]) {
 203                 int arp_all_targets =
 204                         nla_get_u32(data[IFLA_BOND_ARP_ALL_TARGETS]);
 205
 206                 bond_opt_initval(&newval, arp_all_targets);
 207                 err = __bond_opt_set(bond, BOND_OPT_ARP_ALL_TARGETS, &newval);
 208                 if (err)
 209                         return err;
 210         }
 211         if (data[IFLA_BOND_PRIMARY]) {
 212                 int ifindex = nla_get_u32(data[IFLA_BOND_PRIMARY]);
 213                 struct net_device *dev;
 214                 char *primary = "";
 215
 216                 dev = __dev_get_by_index(dev_net(bond_dev), ifindex);
 217                 if (dev)
 218                         primary = dev->name;
 219
 220                 err = bond_option_primary_set(bond, primary);
 221                 if (err)
 222                         return err;
 223         }
 224         if (data[IFLA_BOND_PRIMARY_RESELECT]) {
 225                 int primary_reselect =
 226                         nla_get_u8(data[IFLA_BOND_PRIMARY_RESELECT]);
 227
 228                 err = bond_option_primary_reselect_set(bond, primary_reselect);
 229                 if (err)
 230                         return err;
 231         }
 232         if (data[IFLA_BOND_FAIL_OVER_MAC]) {
 233                 int fail_over_mac =
 234                         nla_get_u8(data[IFLA_BOND_FAIL_OVER_MAC]);
 235
 236                 bond_opt_initval(&newval, fail_over_mac);
 237                 err = __bond_opt_set(bond, BOND_OPT_FAIL_OVER_MAC, &newval);
 238                 if (err)
 239                         return err;
 240         }
 241         if (data[IFLA_BOND_XMIT_HASH_POLICY]) {
 242                 int xmit_hash_policy =
 243                         nla_get_u8(data[IFLA_BOND_XMIT_HASH_POLICY]);
 244
 245                 bond_opt_initval(&newval, xmit_hash_policy);
 246                 err = __bond_opt_set(bond, BOND_OPT_XMIT_HASH, &newval);
 247                 if (err)
 248                         return err;
 249         }
 250         if (data[IFLA_BOND_RESEND_IGMP]) {
 251                 int resend_igmp =
 252                         nla_get_u32(data[IFLA_BOND_RESEND_IGMP]);
 253
 254                 err = bond_option_resend_igmp_set(bond, resend_igmp);
 255                 if (err)
 256                         return err;
 257         }
 258         if (data[IFLA_BOND_NUM_PEER_NOTIF]) {
 259                 int num_peer_notif =
 260                         nla_get_u8(data[IFLA_BOND_NUM_PEER_NOTIF]);
 261
 262                 err = bond_option_num_peer_notif_set(bond, num_peer_notif);
 263                 if (err)
 264                         return err;
 265         }
 266         if (data[IFLA_BOND_ALL_SLAVES_ACTIVE]) {
 267                 int all_slaves_active =
 268                         nla_get_u8(data[IFLA_BOND_ALL_SLAVES_ACTIVE]);
 269
 270                 err = bond_option_all_slaves_active_set(bond,
 271                                                         all_slaves_active);
 272                 if (err)
 273                         return err;
 274         }
 275         if (data[IFLA_BOND_MIN_LINKS]) {
 276                 int min_links =
 277                         nla_get_u32(data[IFLA_BOND_MIN_LINKS]);
 278
 279                 err = bond_option_min_links_set(bond, min_links);
 280                 if (err)
 281                         return err;
 282         }
 283         if (data[IFLA_BOND_LP_INTERVAL]) {
 284                 int lp_interval =
 285                         nla_get_u32(data[IFLA_BOND_LP_INTERVAL]);
 286
 287                 err = bond_option_lp_interval_set(bond, lp_interval);
 288                 if (err)
 289                         return err;
 290         }
 291         if (data[IFLA_BOND_PACKETS_PER_SLAVE]) {
 292                 int packets_per_slave =
 293                         nla_get_u32(data[IFLA_BOND_PACKETS_PER_SLAVE]);
 294
 295                 bond_opt_initval(&newval, packets_per_slave);
 296                 err = __bond_opt_set(bond, BOND_OPT_PACKETS_PER_SLAVE, &newval);
 297                 if (err)
 298                         return err;
 299         }
 300         if (data[IFLA_BOND_AD_LACP_RATE]) {
 301                 int lacp_rate =
 302                         nla_get_u8(data[IFLA_BOND_AD_LACP_RATE]);
 303
 304                 err = bond_option_lacp_rate_set(bond, lacp_rate);
 305                 if (err)
 306                         return err;
 307         }
 308         if (data[IFLA_BOND_AD_SELECT]) {
 309                 int ad_select =
 310                         nla_get_u8(data[IFLA_BOND_AD_SELECT]);
 311
 312                 err = bond_option_ad_select_set(bond, ad_select);
 313                 if (err)
 314                         return err;
 315         }
 316         return 0;
 317 }
 318
 319 static int bond_newlink(struct net *src_net, struct net_device *bond_dev,
 320                         struct nlattr *tb[], struct nlattr *data[])
 321 {
 322         int err;
 323
 324         err = bond_changelink(bond_dev, tb, data);
 325         if (err < 0)
 326                 return err;
 327
 328         return register_netdevice(bond_dev);
 329 }
 330
 331 static size_t bond_get_size(const struct net_device *bond_dev)
 332 {
 333         return nla_total_size(sizeof(u8)) +     /* IFLA_BOND_MODE */
 334                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_ACTIVE_SLAVE */
 335                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_MIIMON */
 336                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_UPDELAY */
 337                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_DOWNDELAY */
 338                 nla_total_size(sizeof(u8)) +    /* IFLA_BOND_USE_CARRIER */
 339                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_ARP_INTERVAL */
 340                                                 /* IFLA_BOND_ARP_IP_TARGET */
 341                 nla_total_size(sizeof(struct nlattr)) +
 342                 nla_total_size(sizeof(u32)) * BOND_MAX_ARP_TARGETS +
 343                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_ARP_VALIDATE */
 344                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_ARP_ALL_TARGETS */
 345                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_PRIMARY */
 346                 nla_total_size(sizeof(u8)) +    /* IFLA_BOND_PRIMARY_RESELECT */
 347                 nla_total_size(sizeof(u8)) +    /* IFLA_BOND_FAIL_OVER_MAC */
 348                 nla_total_size(sizeof(u8)) +    /* IFLA_BOND_XMIT_HASH_POLICY */
 349                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_RESEND_IGMP */
 350                 nla_total_size(sizeof(u8)) +    /* IFLA_BOND_NUM_PEER_NOTIF */
 351                 nla_total_size(sizeof(u8)) +   /* IFLA_BOND_ALL_SLAVES_ACTIVE */
 352                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_MIN_LINKS */
 353                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_LP_INTERVAL */
 354                 nla_total_size(sizeof(u32)) +  /* IFLA_BOND_PACKETS_PER_SLAVE */
 355                 nla_total_size(sizeof(u8)) +    /* IFLA_BOND_AD_LACP_RATE */
 356                 nla_total_size(sizeof(u8)) +    /* IFLA_BOND_AD_SELECT */
 357                 nla_total_size(sizeof(struct nlattr)) + /* IFLA_BOND_AD_INFO */
 358                 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_AGGREGATOR */
 359                 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_NUM_PORTS */
 360                 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_ACTOR_KEY */
 361                 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_PARTNER_KEY*/
 362                 nla_total_size(ETH_ALEN) +    /* IFLA_BOND_AD_INFO_PARTNER_MAC*/
 363                 0;
 364 }
 365
 366 static int bond_fill_info(struct sk_buff *skb,
 367                           const struct net_device *bond_dev)
 368 {
 369         struct bonding *bond = netdev_priv(bond_dev);
 370         struct net_device *slave_dev = bond_option_active_slave_get(bond);
 371         struct nlattr *targets;
 372         unsigned int packets_per_slave;
 373         int i, targets_added;
 374
 375         if (nla_put_u8(skb, IFLA_BOND_MODE, bond->params.mode))
 376                 goto nla_put_failure;
 377
 378         if (slave_dev &&
 379             nla_put_u32(skb, IFLA_BOND_ACTIVE_SLAVE, slave_dev->ifindex))
 380                 goto nla_put_failure;
 381
 382         if (nla_put_u32(skb, IFLA_BOND_MIIMON, bond->params.miimon))
 383                 goto nla_put_failure;
 384
 385         if (nla_put_u32(skb, IFLA_BOND_UPDELAY,
 386                         bond->params.updelay * bond->params.miimon))
 387                 goto nla_put_failure;
 388
 389         if (nla_put_u32(skb, IFLA_BOND_DOWNDELAY,
 390                         bond->params.downdelay * bond->params.miimon))
 391                 goto nla_put_failure;
 392
 393         if (nla_put_u8(skb, IFLA_BOND_USE_CARRIER, bond->params.use_carrier))
 394                 goto nla_put_failure;
 395
 396         if (nla_put_u32(skb, IFLA_BOND_ARP_INTERVAL, bond->params.arp_interval))
 397                 goto nla_put_failure;
 398
 399         targets = nla_nest_start(skb, IFLA_BOND_ARP_IP_TARGET);
 400         if (!targets)
 401                 goto nla_put_failure;
 402
 403         targets_added = 0;
 404         for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) {
 405                 if (bond->params.arp_targets[i]) {
 406                         nla_put_be32(skb, i, bond->params.arp_targets[i]);
 407                         targets_added = 1;
 408                 }
 409         }
 410
 411         if (targets_added)
 412                 nla_nest_end(skb, targets);
 413         else
 414                 nla_nest_cancel(skb, targets);
 415
 416         if (nla_put_u32(skb, IFLA_BOND_ARP_VALIDATE, bond->params.arp_validate))
 417                 goto nla_put_failure;
 418
 419         if (nla_put_u32(skb, IFLA_BOND_ARP_ALL_TARGETS,
 420                         bond->params.arp_all_targets))
 421                 goto nla_put_failure;
 422
 423         if (bond->primary_slave &&
 424             nla_put_u32(skb, IFLA_BOND_PRIMARY,
 425                         bond->primary_slave->dev->ifindex))
 426                 goto nla_put_failure;
 427
 428         if (nla_put_u8(skb, IFLA_BOND_PRIMARY_RESELECT,
 429                        bond->params.primary_reselect))
 430                 goto nla_put_failure;
 431
 432         if (nla_put_u8(skb, IFLA_BOND_FAIL_OVER_MAC,
 433                        bond->params.fail_over_mac))
 434                 goto nla_put_failure;
 435
 436         if (nla_put_u8(skb, IFLA_BOND_XMIT_HASH_POLICY,
 437                        bond->params.xmit_policy))
 438                 goto nla_put_failure;
 439
 440         if (nla_put_u32(skb, IFLA_BOND_RESEND_IGMP,
 441                         bond->params.resend_igmp))
 442                 goto nla_put_failure;
 443
 444         if (nla_put_u8(skb, IFLA_BOND_NUM_PEER_NOTIF,
 445                        bond->params.num_peer_notif))
 446                 goto nla_put_failure;
 447
 448         if (nla_put_u8(skb, IFLA_BOND_ALL_SLAVES_ACTIVE,
 449                        bond->params.all_slaves_active))
 450                 goto nla_put_failure;
 451
 452         if (nla_put_u32(skb, IFLA_BOND_MIN_LINKS,
 453                         bond->params.min_links))
 454                 goto nla_put_failure;
 455
 456         if (nla_put_u32(skb, IFLA_BOND_LP_INTERVAL,
 457                         bond->params.lp_interval))
 458                 goto nla_put_failure;
 459
 460         packets_per_slave = bond->params.packets_per_slave;
 461         if (nla_put_u32(skb, IFLA_BOND_PACKETS_PER_SLAVE,
 462                         packets_per_slave))
 463                 goto nla_put_failure;
 464
 465         if (nla_put_u8(skb, IFLA_BOND_AD_LACP_RATE,
 466                        bond->params.lacp_fast))
 467                 goto nla_put_failure;
 468
 469         if (nla_put_u8(skb, IFLA_BOND_AD_SELECT,
 470                        bond->params.ad_select))
 471                 goto nla_put_failure;
 472
 473         if (bond->params.mode == BOND_MODE_8023AD) {
 474                 struct ad_info info;
 475
 476                 if (!bond_3ad_get_active_agg_info(bond, &info)) {
 477                         struct nlattr *nest;
 478
 479                         nest = nla_nest_start(skb, IFLA_BOND_AD_INFO);
 480                         if (!nest)
 481                                 goto nla_put_failure;
 482
 483                         if (nla_put_u16(skb, IFLA_BOND_AD_INFO_AGGREGATOR,
 484                                         info.aggregator_id))
 485                                 goto nla_put_failure;
 486                         if (nla_put_u16(skb, IFLA_BOND_AD_INFO_NUM_PORTS,
 487                                         info.ports))
 488                                 goto nla_put_failure;
 489                         if (nla_put_u16(skb, IFLA_BOND_AD_INFO_ACTOR_KEY,
 490                                         info.actor_key))
 491                                 goto nla_put_failure;
 492                         if (nla_put_u16(skb, IFLA_BOND_AD_INFO_PARTNER_KEY,
 493                                         info.partner_key))
 494                                 goto nla_put_failure;
 495                         if (nla_put(skb, IFLA_BOND_AD_INFO_PARTNER_MAC,
 496                                     sizeof(info.partner_system),
 497                                     &info.partner_system))
 498                                 goto nla_put_failure;
 499
 500                         nla_nest_end(skb, nest);
 501                 }
 502         }
 503
 504         return 0;
 505
 506 nla_put_failure:
 507         return -EMSGSIZE;
 508 }
 509
 510 struct rtnl_link_ops bond_link_ops __read_mostly = {
 511         .kind                   = "bond",
 512         .priv_size              = sizeof(struct bonding),
 513         .setup                  = bond_setup,
 514         .maxtype                = IFLA_BOND_MAX,
 515         .policy                 = bond_policy,
 516         .validate               = bond_validate,
 517         .newlink                = bond_newlink,
 518         .changelink             = bond_changelink,
 519         .get_size               = bond_get_size,
 520         .fill_info              = bond_fill_info,
 521         .get_num_tx_queues      = bond_get_num_tx_queues,
 522         .get_num_rx_queues      = bond_get_num_tx_queues, /* Use the same number
 523                                                              as for TX queues */
 524 };
 525
 526 int __init bond_netlink_init(void)
 527 {
 528         return rtnl_link_register(&bond_link_ops);
 529 }
 530
 531 void bond_netlink_fini(void)
 532 {
 533         rtnl_link_unregister(&bond_link_ops);
 534 }
 535
 536 MODULE_ALIAS_RTNL_LINK("bond");