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"); 615