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 "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 = nla_get_be32(attr);
 229
 230                         bond_opt_initval(&newval, (__force u64)target);
 231                         err = __bond_opt_set(bond, BOND_OPT_ARP_TARGETS,
 232                                              &newval);
 233                         if (err)
 234                                 break;
 235                         i++;
 236                 }
 237                 if (i == 0 && bond->params.arp_interval)
 238                         netdev_warn(bond->dev, "Removing last arp target with arp_interval on\n");
 239                 if (err)
 240                         return err;
 241         }
 242         if (data[IFLA_BOND_ARP_VALIDATE]) {
 243                 int arp_validate = nla_get_u32(data[IFLA_BOND_ARP_VALIDATE]);
 244
 245                 if (arp_validate && miimon) {
 246                         netdev_err(bond->dev, "ARP validating cannot be used with MII monitoring\n");
 247                         return -EINVAL;
 248                 }
 249
 250                 bond_opt_initval(&newval, arp_validate);
 251                 err = __bond_opt_set(bond, BOND_OPT_ARP_VALIDATE, &newval);
 252                 if (err)
 253                         return err;
 254         }
 255         if (data[IFLA_BOND_ARP_ALL_TARGETS]) {
 256                 int arp_all_targets =
 257                         nla_get_u32(data[IFLA_BOND_ARP_ALL_TARGETS]);
 258
 259                 bond_opt_initval(&newval, arp_all_targets);
 260                 err = __bond_opt_set(bond, BOND_OPT_ARP_ALL_TARGETS, &newval);
 261                 if (err)
 262                         return err;
 263         }
 264         if (data[IFLA_BOND_PRIMARY]) {
 265                 int ifindex = nla_get_u32(data[IFLA_BOND_PRIMARY]);
 266                 struct net_device *dev;
 267                 char *primary = "";
 268
 269                 dev = __dev_get_by_index(dev_net(bond_dev), ifindex);
 270                 if (dev)
 271                         primary = dev->name;
 272
 273                 bond_opt_initstr(&newval, primary);
 274                 err = __bond_opt_set(bond, BOND_OPT_PRIMARY, &newval);
 275                 if (err)
 276                         return err;
 277         }
 278         if (data[IFLA_BOND_PRIMARY_RESELECT]) {
 279                 int primary_reselect =
 280                         nla_get_u8(data[IFLA_BOND_PRIMARY_RESELECT]);
 281
 282                 bond_opt_initval(&newval, primary_reselect);
 283                 err = __bond_opt_set(bond, BOND_OPT_PRIMARY_RESELECT, &newval);
 284                 if (err)
 285                         return err;
 286         }
 287         if (data[IFLA_BOND_FAIL_OVER_MAC]) {
 288                 int fail_over_mac =
 289                         nla_get_u8(data[IFLA_BOND_FAIL_OVER_MAC]);
 290
 291                 bond_opt_initval(&newval, fail_over_mac);
 292                 err = __bond_opt_set(bond, BOND_OPT_FAIL_OVER_MAC, &newval);
 293                 if (err)
 294                         return err;
 295         }
 296         if (data[IFLA_BOND_XMIT_HASH_POLICY]) {
 297                 int xmit_hash_policy =
 298                         nla_get_u8(data[IFLA_BOND_XMIT_HASH_POLICY]);
 299
 300                 bond_opt_initval(&newval, xmit_hash_policy);
 301                 err = __bond_opt_set(bond, BOND_OPT_XMIT_HASH, &newval);
 302                 if (err)
 303                         return err;
 304         }
 305         if (data[IFLA_BOND_RESEND_IGMP]) {
 306                 int resend_igmp =
 307                         nla_get_u32(data[IFLA_BOND_RESEND_IGMP]);
 308
 309                 bond_opt_initval(&newval, resend_igmp);
 310                 err = __bond_opt_set(bond, BOND_OPT_RESEND_IGMP, &newval);
 311                 if (err)
 312                         return err;
 313         }
 314         if (data[IFLA_BOND_NUM_PEER_NOTIF]) {
 315                 int num_peer_notif =
 316                         nla_get_u8(data[IFLA_BOND_NUM_PEER_NOTIF]);
 317
 318                 bond_opt_initval(&newval, num_peer_notif);
 319                 err = __bond_opt_set(bond, BOND_OPT_NUM_PEER_NOTIF, &newval);
 320                 if (err)
 321                         return err;
 322         }
 323         if (data[IFLA_BOND_ALL_SLAVES_ACTIVE]) {
 324                 int all_slaves_active =
 325                         nla_get_u8(data[IFLA_BOND_ALL_SLAVES_ACTIVE]);
 326
 327                 bond_opt_initval(&newval, all_slaves_active);
 328                 err = __bond_opt_set(bond, BOND_OPT_ALL_SLAVES_ACTIVE, &newval);
 329                 if (err)
 330                         return err;
 331         }
 332         if (data[IFLA_BOND_MIN_LINKS]) {
 333                 int min_links =
 334                         nla_get_u32(data[IFLA_BOND_MIN_LINKS]);
 335
 336                 bond_opt_initval(&newval, min_links);
 337                 err = __bond_opt_set(bond, BOND_OPT_MINLINKS, &newval);
 338                 if (err)
 339                         return err;
 340         }
 341         if (data[IFLA_BOND_LP_INTERVAL]) {
 342                 int lp_interval =
 343                         nla_get_u32(data[IFLA_BOND_LP_INTERVAL]);
 344
 345                 bond_opt_initval(&newval, lp_interval);
 346                 err = __bond_opt_set(bond, BOND_OPT_LP_INTERVAL, &newval);
 347                 if (err)
 348                         return err;
 349         }
 350         if (data[IFLA_BOND_PACKETS_PER_SLAVE]) {
 351                 int packets_per_slave =
 352                         nla_get_u32(data[IFLA_BOND_PACKETS_PER_SLAVE]);
 353
 354                 bond_opt_initval(&newval, packets_per_slave);
 355                 err = __bond_opt_set(bond, BOND_OPT_PACKETS_PER_SLAVE, &newval);
 356                 if (err)
 357                         return err;
 358         }
 359         if (data[IFLA_BOND_AD_LACP_RATE]) {
 360                 int lacp_rate =
 361                         nla_get_u8(data[IFLA_BOND_AD_LACP_RATE]);
 362
 363                 bond_opt_initval(&newval, lacp_rate);
 364                 err = __bond_opt_set(bond, BOND_OPT_LACP_RATE, &newval);
 365                 if (err)
 366                         return err;
 367         }
 368         if (data[IFLA_BOND_AD_SELECT]) {
 369                 int ad_select =
 370                         nla_get_u8(data[IFLA_BOND_AD_SELECT]);
 371
 372                 bond_opt_initval(&newval, ad_select);
 373                 err = __bond_opt_set(bond, BOND_OPT_AD_SELECT, &newval);
 374                 if (err)
 375                         return err;
 376         }
 377         return 0;
 378 }
 379
 380 static int bond_newlink(struct net *src_net, struct net_device *bond_dev,
 381                         struct nlattr *tb[], struct nlattr *data[])
 382 {
 383         int err;
 384
 385         err = bond_changelink(bond_dev, tb, data);
 386         if (err < 0)
 387                 return err;
 388
 389         return register_netdevice(bond_dev);
 390 }
 391
 392 static size_t bond_get_size(const struct net_device *bond_dev)
 393 {
 394         return nla_total_size(sizeof(u8)) +     /* IFLA_BOND_MODE */
 395                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_ACTIVE_SLAVE */
 396                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_MIIMON */
 397                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_UPDELAY */
 398                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_DOWNDELAY */
 399                 nla_total_size(sizeof(u8)) +    /* IFLA_BOND_USE_CARRIER */
 400                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_ARP_INTERVAL */
 401                                                 /* IFLA_BOND_ARP_IP_TARGET */
 402                 nla_total_size(sizeof(struct nlattr)) +
 403                 nla_total_size(sizeof(u32)) * BOND_MAX_ARP_TARGETS +
 404                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_ARP_VALIDATE */
 405                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_ARP_ALL_TARGETS */
 406                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_PRIMARY */
 407                 nla_total_size(sizeof(u8)) +    /* IFLA_BOND_PRIMARY_RESELECT */
 408                 nla_total_size(sizeof(u8)) +    /* IFLA_BOND_FAIL_OVER_MAC */
 409                 nla_total_size(sizeof(u8)) +    /* IFLA_BOND_XMIT_HASH_POLICY */
 410                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_RESEND_IGMP */
 411                 nla_total_size(sizeof(u8)) +    /* IFLA_BOND_NUM_PEER_NOTIF */
 412                 nla_total_size(sizeof(u8)) +   /* IFLA_BOND_ALL_SLAVES_ACTIVE */
 413                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_MIN_LINKS */
 414                 nla_total_size(sizeof(u32)) +   /* IFLA_BOND_LP_INTERVAL */
 415                 nla_total_size(sizeof(u32)) +  /* IFLA_BOND_PACKETS_PER_SLAVE */
 416                 nla_total_size(sizeof(u8)) +    /* IFLA_BOND_AD_LACP_RATE */
 417                 nla_total_size(sizeof(u8)) +    /* IFLA_BOND_AD_SELECT */
 418                 nla_total_size(sizeof(struct nlattr)) + /* IFLA_BOND_AD_INFO */
 419                 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_AGGREGATOR */
 420                 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_NUM_PORTS */
 421                 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_ACTOR_KEY */
 422                 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_PARTNER_KEY*/
 423                 nla_total_size(ETH_ALEN) +    /* IFLA_BOND_AD_INFO_PARTNER_MAC*/
 424                 0;
 425 }
 426
 427 static int bond_option_active_slave_get_ifindex(struct bonding *bond)
 428 {
 429         const struct net_device *slave;
 430         int ifindex;
 431
 432         rcu_read_lock();
 433         slave = bond_option_active_slave_get_rcu(bond);
 434         ifindex = slave ? slave->ifindex : 0;
 435         rcu_read_unlock();
 436         return ifindex;
 437 }
 438
 439 static int bond_fill_info(struct sk_buff *skb,
 440                           const struct net_device *bond_dev)
 441 {
 442         struct bonding *bond = netdev_priv(bond_dev);
 443         unsigned int packets_per_slave;
 444         int ifindex, i, targets_added;
 445         struct nlattr *targets;
 446         struct slave *primary;
 447
 448         if (nla_put_u8(skb, IFLA_BOND_MODE, BOND_MODE(bond)))
 449                 goto nla_put_failure;
 450
 451         ifindex = bond_option_active_slave_get_ifindex(bond);
 452         if (ifindex && nla_put_u32(skb, IFLA_BOND_ACTIVE_SLAVE, ifindex))
 453                 goto nla_put_failure;
 454
 455         if (nla_put_u32(skb, IFLA_BOND_MIIMON, bond->params.miimon))
 456                 goto nla_put_failure;
 457
 458         if (nla_put_u32(skb, IFLA_BOND_UPDELAY,
 459                         bond->params.updelay * bond->params.miimon))
 460                 goto nla_put_failure;
 461
 462         if (nla_put_u32(skb, IFLA_BOND_DOWNDELAY,
 463                         bond->params.downdelay * bond->params.miimon))
 464                 goto nla_put_failure;
 465
 466         if (nla_put_u8(skb, IFLA_BOND_USE_CARRIER, bond->params.use_carrier))
 467                 goto nla_put_failure;
 468
 469         if (nla_put_u32(skb, IFLA_BOND_ARP_INTERVAL, bond->params.arp_interval))
 470                 goto nla_put_failure;
 471
 472         targets = nla_nest_start(skb, IFLA_BOND_ARP_IP_TARGET);
 473         if (!targets)
 474                 goto nla_put_failure;
 475
 476         targets_added = 0;
 477         for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) {
 478                 if (bond->params.arp_targets[i]) {
 479                         nla_put_be32(skb, i, bond->params.arp_targets[i]);
 480                         targets_added = 1;
 481                 }
 482         }
 483
 484         if (targets_added)
 485                 nla_nest_end(skb, targets);
 486         else
 487                 nla_nest_cancel(skb, targets);
 488
 489         if (nla_put_u32(skb, IFLA_BOND_ARP_VALIDATE, bond->params.arp_validate))
 490                 goto nla_put_failure;
 491
 492         if (nla_put_u32(skb, IFLA_BOND_ARP_ALL_TARGETS,
 493                         bond->params.arp_all_targets))
 494                 goto nla_put_failure;
 495
 496         primary = rtnl_dereference(bond->primary_slave);
 497         if (primary &&
 498             nla_put_u32(skb, IFLA_BOND_PRIMARY, primary->dev->ifindex))
 499                 goto nla_put_failure;
 500
 501         if (nla_put_u8(skb, IFLA_BOND_PRIMARY_RESELECT,
 502                        bond->params.primary_reselect))
 503                 goto nla_put_failure;
 504
 505         if (nla_put_u8(skb, IFLA_BOND_FAIL_OVER_MAC,
 506                        bond->params.fail_over_mac))
 507                 goto nla_put_failure;
 508
 509         if (nla_put_u8(skb, IFLA_BOND_XMIT_HASH_POLICY,
 510                        bond->params.xmit_policy))
 511                 goto nla_put_failure;
 512
 513         if (nla_put_u32(skb, IFLA_BOND_RESEND_IGMP,
 514                         bond->params.resend_igmp))
 515                 goto nla_put_failure;
 516
 517         if (nla_put_u8(skb, IFLA_BOND_NUM_PEER_NOTIF,
 518                        bond->params.num_peer_notif))
 519                 goto nla_put_failure;
 520
 521         if (nla_put_u8(skb, IFLA_BOND_ALL_SLAVES_ACTIVE,
 522                        bond->params.all_slaves_active))
 523                 goto nla_put_failure;
 524
 525         if (nla_put_u32(skb, IFLA_BOND_MIN_LINKS,
 526                         bond->params.min_links))
 527                 goto nla_put_failure;
 528
 529         if (nla_put_u32(skb, IFLA_BOND_LP_INTERVAL,
 530                         bond->params.lp_interval))
 531                 goto nla_put_failure;
 532
 533         packets_per_slave = bond->params.packets_per_slave;
 534         if (nla_put_u32(skb, IFLA_BOND_PACKETS_PER_SLAVE,
 535                         packets_per_slave))
 536                 goto nla_put_failure;
 537
 538         if (nla_put_u8(skb, IFLA_BOND_AD_LACP_RATE,
 539                        bond->params.lacp_fast))
 540                 goto nla_put_failure;
 541
 542         if (nla_put_u8(skb, IFLA_BOND_AD_SELECT,
 543                        bond->params.ad_select))
 544                 goto nla_put_failure;
 545
 546         if (BOND_MODE(bond) == BOND_MODE_8023AD) {
 547                 struct ad_info info;
 548
 549                 if (!bond_3ad_get_active_agg_info(bond, &info)) {
 550                         struct nlattr *nest;
 551
 552                         nest = nla_nest_start(skb, IFLA_BOND_AD_INFO);
 553                         if (!nest)
 554                                 goto nla_put_failure;
 555
 556                         if (nla_put_u16(skb, IFLA_BOND_AD_INFO_AGGREGATOR,
 557                                         info.aggregator_id))
 558                                 goto nla_put_failure;
 559                         if (nla_put_u16(skb, IFLA_BOND_AD_INFO_NUM_PORTS,
 560                                         info.ports))
 561                                 goto nla_put_failure;
 562                         if (nla_put_u16(skb, IFLA_BOND_AD_INFO_ACTOR_KEY,
 563                                         info.actor_key))
 564                                 goto nla_put_failure;
 565                         if (nla_put_u16(skb, IFLA_BOND_AD_INFO_PARTNER_KEY,
 566                                         info.partner_key))
 567                                 goto nla_put_failure;
 568                         if (nla_put(skb, IFLA_BOND_AD_INFO_PARTNER_MAC,
 569                                     sizeof(info.partner_system),
 570                                     &info.partner_system))
 571                                 goto nla_put_failure;
 572
 573                         nla_nest_end(skb, nest);
 574                 }
 575         }
 576
 577         return 0;
 578
 579 nla_put_failure:
 580         return -EMSGSIZE;
 581 }
 582
 583 struct rtnl_link_ops bond_link_ops __read_mostly = {
 584         .kind                   = "bond",
 585         .priv_size              = sizeof(struct bonding),
 586         .setup                  = bond_setup,
 587         .maxtype                = IFLA_BOND_MAX,
 588         .policy                 = bond_policy,
 589         .validate               = bond_validate,
 590         .newlink                = bond_newlink,
 591         .changelink             = bond_changelink,
 592         .get_size               = bond_get_size,
 593         .fill_info              = bond_fill_info,
 594         .get_num_tx_queues      = bond_get_num_tx_queues,
 595         .get_num_rx_queues      = bond_get_num_tx_queues, /* Use the same number
 596                                                              as for TX queues */
 597         .slave_maxtype          = IFLA_BOND_SLAVE_MAX,
 598         .slave_policy           = bond_slave_policy,
 599         .slave_changelink       = bond_slave_changelink,
 600         .get_slave_size         = bond_get_slave_size,
 601         .fill_slave_info        = bond_fill_slave_info,
 602 };
 603
 604 int __init bond_netlink_init(void)
 605 {
 606         return rtnl_link_register(&bond_link_ops);
 607 }
 608
 609 void bond_netlink_fini(void)
 610 {
 611         rtnl_link_unregister(&bond_link_ops);
 612 }
 613
 614 MODULE_ALIAS_RTNL_LINK("bond");