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