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"); 620